FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Han, JB
Zhang, JS
Carey, JW
AF Han, Jiabin
Zhang, Jinsuo
Carey, J. William
TI Effect of bicarbonate on corrosion of carbon steel in CO2 saturated
brines
SO INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
LA English
DT Article
DE Bicarbonate; Carbon dioxide; Corrosion; Carbon steel; Modeling
ID MILD-STEEL; DIOXIDE CORROSION; CHEMISTRY; CHLORIDE; MODEL; IONS; FILM;
OIL
AB The effect of bicarbonate concentration (HCO3-) on bare steel surface corrosion was investigated experimentally in ambient CO2-saturated solutions. In the presence of CO2, pH was adjusted by adding NaHCO3 solution or powder. Corrosion rate decreased with pH increasing at the range of pH 4-5, was little changed at pH 5-6 and interestingly increased at pH 6-8. Thermodynamic calculations of CO2 aqueous speciation showed that only bicarbonate concentration increased as pH increased from 4 to 8 while the other corrosion-active species including proton and carbonic acid either decreased or changed little, respectively. Thus we have demonstrated that bicarbonate is an active corrosion species and is important to corrosion at pH 6-8. Our earlier mechanistic corrosion model (Han et al., 2011a) was modified to incorporate bicarbonate-induced corrosion and demonstrated good agreement with experimental observations. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Han, Jiabin; Carey, J. William] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA.
[Zhang, Jinsuo] Los Alamos Natl Lab, Decis & Applicat Div, Los Alamos, NM 87545 USA.
RP Han, JB (reprint author), Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA.
EM jiabin.han@gmail.com
RI Lujan Center, LANL/G-4896-2012; Zhang, Jinsuo/H-4717-2012
OI Zhang, Jinsuo/0000-0002-3412-7769
FU Baker Hughes; BG Group; BP; Champion Technologies,; Chevron; Clariant;
Columbia Gas Transmission; ConocoPhillips; Encana; Eni; ExxonMobil;
INPEX; IONIK Consulting; MI-Swaco Production Chemicals; Nalco;
Occidental Oil Company; Petronas; Petrobras; PTTEP; Saudi Aramco; Shell;
Tenaris; Department of Energy [FE-10-001]
FX The experimental data were taken from Jiabin Han's PhD project at Ohio
University sponsored from the Corrosion Center Joint Industry Project
advisory board members, namely Baker Hughes, BG Group, BP, Champion
Technologies, Chevron, Clariant, Columbia Gas Transmission,
ConocoPhillips, Encana, Eni, ExxonMobil, INPEX, IONIK Consulting,
MI-Swaco Production Chemicals, Nalco, Occidental Oil Company, Petronas,
Petrobras, PTTEP, Saudi Aramco, Shell, Tenaris and Total. The model was
developed at Los Alamos National Laboratory sponsored by the Fossil
Energy program of the Department of Energy (FE-10-001).
NR 19
TC 20
Z9 20
U1 0
U2 15
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1750-5836
J9 INT J GREENH GAS CON
JI Int. J. Greenh. Gas Control
PD NOV
PY 2011
VL 5
IS 6
BP 1680
EP 1683
DI 10.1016/j.ijggc.2011.08.003
PG 4
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Engineering,
Environmental
SC Science & Technology - Other Topics; Energy & Fuels; Engineering
GA 862VY
UT WOS:000298123400030
ER
PT J
AU Gainer, JS
Kumar, K
Low, I
Vega-Morales, R
AF Gainer, James S.
Kumar, Kunal
Low, Ian
Vega-Morales, Roberto
TI Improving the sensitivity of Higgs boson searches in the golden channel
SO JOURNAL OF HIGH ENERGY PHYSICS
LA English
DT Article
DE Higgs Physics; Standard Model
ID DYNAMIC LIKELIHOOD METHOD; TOP-QUARK MASS; STANDARD MODEL; MISSING
MOMENTUM; COLLIDERS; EVENTS; DECAY; RECONSTRUCTION; PAIRS; SPIN
AB Leptonic decays of the Higgs boson in the ZZ(*) channel yield what is known as the golden channel due to its clean signature and good total invariant mass resolution. In addition, the full kinematic distribution of the decay products can be reconstructed, which, nonetheless, is not taken into account in traditional search strategy relying only on measurements of the total invariant mass. In this work we implement a type of multivariate analysis known as the matrix element method, which exploits differences in the full production and decay matrix elements between the Higgs boson and the dominant irreducible background from q (q) over bar -> ZZ(*). Analytic expressions of the differential distributions for both the signal and the background are also presented. We perform a study for the Large Hadron Collider at root s = 7 TeV for Higgs masses between 175 and 350 GeV. We find that, with an integrated luminosity of 2.5 fb(-1) or higher, improvements in the order of 10-20% could be obtained for both discovery significance and exclusion limits in the high mass region, where the differences in the angular correlations between signal and background are most pronounced.
C1 [Gainer, James S.; Low, Ian] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.
[Gainer, James S.; Kumar, Kunal; Low, Ian; Vega-Morales, Roberto] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA.
RP Gainer, JS (reprint author), Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.
EM j-gainer@northwestern.edu; KunalKumar2011@u.northwestern.edu;
ilow@northwestern.edu; RobertoVegaMorales2010@u.northwestern.edu
OI Gainer, James/0000-0002-8872-0664
FU GAANN; U.S. Department of Energy [DE-AC02-06CH11357, DE-FC02-91ER40684]
FX We would like to thank Johan Alwall, Pierre Artoisenet, Pushpa Bhat,
Qinghong Cao, Johannes Heinonen, Wai-Yee Keung Jen Kile, Andrew Kobach,
Andrew Kubik, Tom LeCompte, Joe Lykken, Olivier Mattelaer, Frank
Petriello, Seth Quackenbush, Heidi Schellman, Michael Schmitt, Shashank
Shalgar, Gabe Shaughnessy, Tim Tait, and Nhan Tran for useful
conversations and/or correspondence. RVM acknowledges the support of a
GAANN fellowship. This work was supported in part by the U.S. Department
of Energy under contract numbers DE-AC02-06CH11357 and
DE-FC02-91ER40684.
NR 71
TC 26
Z9 26
U1 0
U2 2
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1029-8479
J9 J HIGH ENERGY PHYS
JI J. High Energy Phys.
PD NOV
PY 2011
IS 11
AR 027
DI 10.1007/JHEP11(2011)027
PG 27
WC Physics, Particles & Fields
SC Physics
GA 855OB
UT WOS:000297572900050
ER
PT J
AU Nomura, Y
AF Nomura, Yasunori
TI Physical theories, eternal inflation, and the quantum universe
SO JOURNAL OF HIGH ENERGY PHYSICS
LA English
DT Article
DE Cosmology of Theories beyond the SM; Superstring Vacua; dS vacua in
string theory; Models of Quantum Gravity
ID BLACK-HOLE COMPLEMENTARITY; STATIONARY UNIVERSE; PARTICLE CREATION;
PHASE-TRANSITION; THERMODYNAMICS; PERTURBATIONS; FLUCTUATIONS;
EVAPORATION; COSMOLOGY; PRINCIPLE
AB Infinities in eternal inflation have long been plaguing cosmology, making any predictions highly sensitive to how they are regulated. The problem exists already at the level of semi-classical general relativity, and has a priori nothing to do with quantum gravity. On the other hand, we know that certain problems in semi-classical gravity, for example physics of black holes and their evaporation, have led to understanding of surprising, quantum natures of spacetime and gravity, such as the holographic principle and horizon complementarity.
In this paper, we present a framework in which well-defined predictions are obtained in an eternally inflating multiverse, based on the principles of quantum mechanics. We propose that the entire multiverse is described purely from the viewpoint of a single "observer," who describes the world as a quantum state defined on his/her past light cones bounded by the (stretched) apparent horizons. We find that quantum mechanics plays an essential role in regulating infinities. The framework is " gauge invariant," i.e. predictions do not depend on how spacetime is parametrized, as it should be in a theory of quantum gravity.
Our framework provides a fully unified treatment of quantum measurement processes and the multiverse. We conclude that the eternally inflating multiverse and many worlds in quantum mechanics are the same. Other important implications include: global spacetime can be viewed as a derived concept; the multiverse is a transient phenomenon during the world relaxing into a supersymmetric Minkowski state. We also present a model of "initial conditions" for the multiverse. By extrapolating our framework to the extreme, we arrive at a picture that the entire multiverse is a fluctuation in the stationary, fractal "mega-multiverse," in which an infinite sequence of multiverse productions occurs.
The framework discussed here does not suffer from problems/paradoxes plaguing other measures proposed earlier, such as the youngness paradox and the Boltzmann brain problem.
C1 [Nomura, Yasunori] Univ Calif Berkeley, Dept Phys, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA.
[Nomura, Yasunori] Univ Calif Berkeley, Lawrence Berkeley Lab, Theoret Phys Grp, Berkeley, CA 94720 USA.
RP Nomura, Y (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA.
EM ynomura@berkeley.edu
OI Nomura, Yasunori/0000-0002-1497-1479
FU Office of Science, Office of High Energy and Nuclear Physics, of the US
Department of Energy [DE-AC02-05CH11231]; National Science Foundation
[PHY-0855653]
FX I am grateful for stimulating discussions with Raphael Bousso, Clifford
Cheung, Ben Freivogel, Alan Guth, and Vladimir Rosenhaus. This work was
supported in part by the Director, Office of Science, Office of High
Energy and Nuclear Physics, of the US Department of Energy under
Contract DE-AC02-05CH11231, and in part by the National Science
Foundation under grants PHY-0855653.
NR 124
TC 24
Z9 24
U1 1
U2 5
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1029-8479
J9 J HIGH ENERGY PHYS
JI J. High Energy Phys.
PD NOV
PY 2011
IS 11
AR 063
DI 10.1007/JHEP11(2011)063
PG 68
WC Physics, Particles & Fields
SC Physics
GA 855OB
UT WOS:000297572900015
ER
PT J
AU Goodding, JC
Ardelean, EV
Babuska, V
Robertson, LM
Lane, SA
AF Goodding, James C.
Ardelean, Emil V.
Babuska, Vit
Robertson, Lawrence M., III
Lane, Steven A.
TI Experimental Techniques and Structural Parameter Estimation Studies of
Spacecraft Cables
SO JOURNAL OF SPACECRAFT AND ROCKETS
LA English
DT Article
AB Signal and electrical power cables pose unique challenges to spacecraft structural design and are often poorly modeled or even neglected. The objective of this research was to develop test methods and analysis techniques to accurately model cable-loaded spacecraft, using linear finite element models. Test methods were developed to characterize cable extensional and bending properties when subjected to low-level lateral dynamic loads. Timoshenko beam theory, including shear and bending, was used to model cable lateral dynamics, and the model formulation applicability was validated through experiment. An algorithm was developed to estimate cable area moment of inertia and shear area factor, shear modulus product, from a single driving point mobility function. Test methods and the parameter estimation algorithm were validated, using metallic rod test specimens. Experiments were performed on cables of differing constructions and spans, to develop a database for finite element modeling validation experiments.
C1 [Goodding, James C.] CSA Engn, Albuquerque, NM 87123 USA.
[Ardelean, Emil V.] Schafer Corp, Albuquerque, NM 87106 USA.
[Babuska, Vit] Sandia Natl Labs, Dept 1525, Albuquerque, NM 87185 USA.
[Robertson, Lawrence M., III; Lane, Steven A.] USAF, Res Lab, Space Vehicles Directorate, Kirtland AFB, NM 87117 USA.
RP Goodding, JC (reprint author), CSA Engn, 1451 Innovat Pkwy SE,Suite 100, Albuquerque, NM 87123 USA.
FU Air Force Office of Scientific Research; U.S. Department of Energy
[DE-AC04-94AL85000]
FX The authors would like to acknowledge the support of the Air Force
Office of Scientific Research. The authors are also indebted to our
colleagues with The Aerospace Corporation, for their technical oversight
of this research. Sandia is a multiprogram laboratory operated by Sandia
Corp., a Lockheed Martin Company, for the U.S. Department of Energy
under contract DE-AC04-94AL85000.
NR 19
TC 13
Z9 13
U1 3
U2 8
PU AMER INST AERONAUT ASTRONAUT
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 0022-4650
J9 J SPACECRAFT ROCKETS
JI J. Spacecr. Rockets
PD NOV-DEC
PY 2011
VL 48
IS 6
BP 942
EP 957
DI 10.2514/1.49346
PG 16
WC Engineering, Aerospace
SC Engineering
GA 862UZ
UT WOS:000298120900005
ER
PT J
AU Coombs, DM
Goodding, JC
Babuska, V
Ardelean, EV
Robertson, LM
Lane, SA
AF Coombs, Douglas M.
Goodding, James C.
Babuska, Vit
Ardelean, Emil V.
Robertson, Lawrence M.
Lane, Steven A.
TI Dynamic Modeling and Experimental Validation of a Cable-Loaded Panel
SO JOURNAL OF SPACECRAFT AND ROCKETS
LA English
DT Article
ID BEAM THEORY
AB Power and signal cable harnesses on spacecraft are often at 10% of the total mass and can be as much as 30%. These cable harnesses can impact the structural dynamics of spacecraft significantly, specifically by damping the response. Past efforts have looked at how to calculate cable properties and the validation of these cable models on one-dimensional beam structures with uniform cable lengths. This paper looks at how to extend that process to two-dimensional spacecraftlike panels with nonuniform cable lengths. A shear beam model is used for cable properties. Two methods of calculating the tiedown stiffness are compared. Of particular interest is whether or not handbooks of cable properties can be created ahead of time and applied with confidence. There are three frequency bands in which cable effects can be described. Before any cables become resonant, the cable effects are dominated by mass and static stiffness. After all the cables become resonant, the effect is dominated by increased damping in the structure. In between these two frequency cutoff points, there is a transition zone. The dynamic cable modeling method is validated as a distinct improvement over the lumped-mass characterization of cables commonly used today.
C1 [Coombs, Douglas M.; Goodding, James C.] CSA Engn, Albuquerque, NM 87123 USA.
[Babuska, Vit] Sandia Natl Labs, Dept 1525, Albuquerque, NM 87185 USA.
[Ardelean, Emil V.] Schafer Corp, Albuquerque, NM 87106 USA.
[Robertson, Lawrence M.; Lane, Steven A.] USAF, Res Lab, Space Vehicles Directorate, Kirtland AFB, NM 87117 USA.
RP Coombs, DM (reprint author), CSA Engn, 1451 Innovat Pkwy SE,Suite 100, Albuquerque, NM 87123 USA.
FU U.S. Department of Energy [DE-AC04-94AL85000]
FX Sandia is a multiprogram laboratory operated by Sandia Corporation, a
Lockheed Martin Company, for the U.S. Department of Energy under
contract DE-AC04-94AL85000.
NR 20
TC 12
Z9 12
U1 2
U2 8
PU AMER INST AERONAUT ASTRONAUT
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 0022-4650
J9 J SPACECRAFT ROCKETS
JI J. Spacecr. Rockets
PD NOV-DEC
PY 2011
VL 48
IS 6
BP 958
EP 973
DI 10.2514/1.51021
PG 16
WC Engineering, Aerospace
SC Engineering
GA 862UZ
UT WOS:000298120900006
ER
PT J
AU Borgonovo, E
Smith, CL
AF Borgonovo, E.
Smith, C. L.
TI A Study of Interactions in the Risk Assessment of Complex Engineering
Systems: An Application to Space PSA
SO OPERATIONS RESEARCH
LA English
DT Article
ID JOINT RELIABILITY-IMPORTANCE; SENSITIVITY-ANALYSIS; EVENT TREES; SAFETY
ASSESSMENT; COHERENT-SYSTEM; COMPONENTS; MODELS; OPTIMIZATION; DIAGRAMS;
NETWORK
AB Risk managers are often confronted with the evaluation of operational policies in which two or more system components are simultaneously affected by a change. In these instances, the decision-making process should be informed by the relevance of interactions. However, because of system and model complexity, a rigorous study for determining whether and how interactions quantitatively impact operational choices has not been developed yet. In light of the central role played by the multilinearity of the decision support models, we investigate the presence of interactions in multilinear functions first. We identify interactions that can be a priori excluded from the analysis. We introduce sensitivity measures that apportion the model output change to individual factors and interaction contributions in an exact fashion. The sensitivity measures are linked to graphical representation methods as tornado diagrams and Pareto charts, and a systematic way of inferring managerial insights is presented. We then specialize the findings to reliability and probabilistic safety assessment (PSA) problems. We set forth a procedure for determining the magnitude of changes that make interactions relevant in the analysis. Quantitative results are discussed by application to a PSA model developed at NASA to support decision making in space mission planning and design. Numerical findings show that suboptimal decisions concerning the components on which to focus managerial attention can be made, if the decision-making process is not informed by the relevance of interactions.
C1 [Borgonovo, E.] Bocconi Univ, Dept Decis Sci, I-20136 Milan, Italy.
[Borgonovo, E.] Bocconi Univ, ELEUSI Res Ctr, I-20136 Milan, Italy.
[Smith, C. L.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Borgonovo, E (reprint author), Bocconi Univ, Dept Decis Sci, I-20136 Milan, Italy.
EM emanuele.borgonovo@unibocconi.it; curtis.smith@inl.gov
FU Idaho National Laboratory; ELEUSI Research Center of Bocconi University
FX The authors thank the editor and the associate editor for their careful
editorial assistance, and the anonymous referees for very perceptive
suggestions that have greatly contributed to improving the manuscript.
Financial support from the Faculty Staff Exchange program of the Idaho
National Laboratory is gratefully acknowledged. E. Borgonovo also
gratefully acknowledges financial support from the ELEUSI Research
Center of Bocconi University.
NR 62
TC 12
Z9 14
U1 0
U2 9
PU INFORMS
PI CATONSVILLE
PA 5521 RESEARCH PARK DR, SUITE 200, CATONSVILLE, MD 21228 USA
SN 0030-364X
J9 OPER RES
JI Oper. Res.
PD NOV-DEC
PY 2011
VL 59
IS 6
BP 1461
EP 1476
DI 10.1287/opre.1110.0973
PG 16
WC Management; Operations Research & Management Science
SC Business & Economics; Operations Research & Management Science
GA 871OD
UT WOS:000298746600013
ER
PT J
AU Egbendewe-Mondzozo, A
Swinton, SM
Izaurralde, CR
Manowitz, DH
Zhang, XS
AF Egbendewe-Mondzozo, Aklesso
Swinton, Scott M.
Izaurralde, Cesar R.
Manowitz, David H.
Zhang, Xuesong
TI Biomass supply from alternative cellulosic crops and crop residues: A
spatially explicit bioeconomic modeling approach
SO BIOMASS & BIOENERGY
LA English
DT Article
DE Biomass production; Biofuel policy; Cellulosic ethanol; Agro-ecosystem
economics; Environmental impacts
ID UNITED-STATES; RENEWABLE ENERGY; AGRICULTURE; FEEDSTOCK; COST;
SEQUESTRATION; MISCANTHUS; DELIVERY; EROSION; YIELDS
AB This paper introduces a spatially-explicit bioeconomic model for the study of potential cellulosic biomass supply. For biomass crops to begin to replace current crops, farmers must earn more from them than from current crops. Using weather, topographic and soil data, the terrestrial ecosystem model, EPIC, dynamically simulates multiple cropping systems that vary bycrop rotation, tillage, fertilization and residue removal rate. EPIC generates predicted crop yield and environmental outcomes over multiple watersheds. These EPIC results are used to parameterize a regional profit-maximization mathematical programming model that identifies profitable cropping system choices. The bioeconomic model is calibrated to 2007-09 crop production in a 9-county region of southwest Michigan. A simulation of biomass supply in response to rising biomass prices shows that cellulosic residues from corn stover and wheat straw begin to be supplied at minimum delivered biomass:corn grain price ratios of 0.15 and 0.18, respectively. At the mean corn price of $162.6/Mg ($4.13 per bushel) at commercial moisture content during 2007-2009, these ratios correspond to stover and straw prices of $24 and $29 per dry Mg. Perennial bioenergy crops begin to be supplied at price levels 2-3 times higher. Average biomass transport costs to the biorefinery plant range from $6 to $20/Mg compared to conventional crop production practices in the area, biomass supply from annual crop residues increased greenhouse gas emissions and reduced water quality through increased nutrient loss. By contrast, perennial cellulosic biomass crop production reduced greenhouse gas emissions and improved water quality. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Egbendewe-Mondzozo, Aklesso; Swinton, Scott M.] Michigan State Univ, Great Lakes Bioenergy Res Ctr GLBRC, E Lansing, MI 48823 USA.
[Egbendewe-Mondzozo, Aklesso; Swinton, Scott M.] Michigan State Univ, Dept Agr Food & Resource Econ, E Lansing, MI 48823 USA.
[Izaurralde, Cesar R.; Manowitz, David H.; Zhang, Xuesong] Pacific NW Natl Lab, Joint Global Change Res Inst JGCRI, College Pk, MD 20740 USA.
[Izaurralde, Cesar R.; Manowitz, David H.; Zhang, Xuesong] Univ Maryland, College Pk, MD 20740 USA.
RP Egbendewe-Mondzozo, A (reprint author), Michigan State Univ, Great Lakes Bioenergy Res Ctr GLBRC, 86 Agr Hall, E Lansing, MI 48823 USA.
EM aklesso@msu.edu; swintons@msu.edu; cesar.izaurralde@pnl.gov;
David.Manowitz@pnl.gov; Xuesong.Zhang@pnl.gov
RI Izaurralde, Roberto/E-5826-2012; zhang, xuesong/B-7907-2009
FU DOE Great Lakes Bioenergy Research Center (DOE BER Office of Science)
[DE-FC02-07ER64494, DOE EERE OBP 20469-19145]
FX This work was funded by the DOE Great Lakes Bioenergy Research Center
(DOE BER Office of Science DE-FC02-07ER64494, DOE BER Office of Science
KP1601050, DOE EERE OBP 20469-19145). For data and comments, the authors
wish to thank Sarah AcMoody, Kurt Thelen, Dennis Stein, Eric Wittenberg,
Robin Graham, Burton English, Charles Noon, Bruce Dale, Seth Meyer,
Bryan Bals, Josh Posner and all the participants at the 2010 Michigan
State University, University of Michigan and Wayne State University
environmental and energy economics seminar.
NR 59
TC 22
Z9 22
U1 6
U2 44
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0961-9534
J9 BIOMASS BIOENERG
JI Biomass Bioenerg.
PD NOV
PY 2011
VL 35
IS 11
BP 4636
EP 4647
DI 10.1016/j.biombioe.2011.09.010
PG 12
WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy &
Fuels
SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels
GA 868KE
UT WOS:000298521400018
ER
PT J
AU Dibble, CJ
Shatova, TA
Jorgenson, JL
Stickel, JJ
AF Dibble, Clare J.
Shatova, Tatyana A.
Jorgenson, Jennie L.
Stickel, Jonathan J.
TI Particle morphology characterization and manipulation in biomass
slurries and the effect on rheological properties and enzymatic
conversion
SO BIOTECHNOLOGY PROGRESS
LA English
DT Article
DE corn stover hydrolysis; particle size distribution; image processing;
yield stress; cellulase
ID HIGH-SOLIDS LOADINGS; YIELD-STRESS; CORN STOVER; SIZE; SUSPENSIONS;
CELLULOSE; SACCHARIFICATION; PRETREATMENT; DIGESTIBILITY; HYDROLYSIS
AB An improved understanding of how particle size distribution relates to enzymatic hydrolysis performance and rheological properties could enable enhanced biochemical conversion of lignocellulosic feedstocks. Particle size distribution can change as a result of either physical or chemical manipulation of a biomass sample. In this study, we employed image processing techniques to measure slurry particle size distribution and validated the results by showing that they are comparable to those from laser diffraction and sieving. Particle size and chemical changes of biomass slurries were manipulated independently and the resulting yield stress and enzymatic digestibility of slurries with different size distributions were measured. Interestingly, reducing particle size by mechanical means from about 1 mm to 100 mu m did not reduce the yield stress of the slurries over a broad range of concentrations or increase the digestibility of the biomass over the range of size reduction studied here. This is in stark contrast to the increase in digestibility and decrease in yield stress when particle size is reduced by dilute-acid pretreatment over similar size ranges. (C) 2011 American Institute of Chemical Engineers Biotechnol. Prog., 2011
C1 [Dibble, Clare J.; Shatova, Tatyana A.; Jorgenson, Jennie L.; Stickel, Jonathan J.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA.
RP Dibble, CJ (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA.
EM clare.dibble@nrel.gov
FU U.S. Department of Energy through the Office of the Biomass; David H.
Koch School of Chemical Engineering Practice at MIT; U.S. Department of
Energy through the Office of Workforce Development for Teachers and
Scientists
FX This work was supported by the U.S. Department of Energy through the
Office of the Biomass Program. Tatyana Shatova's contribution was
supported by the David H. Koch School of Chemical Engineering Practice
at MIT. Jennie L. Jorgenson's work was funded by the U.S. Department of
Energy through the Office of Workforce Development for Teachers and
Scientists in the form of a Science Undergraduate Laboratory Internship.
The authors wish to thank James Lischeske for volume fraction
determination and related error analysis, Heidi Pilath for providing
sieved poplar chips, Jessica Olstad and Yves Parent for laser
diffraction measurements, and Sravani Kanamarlapudi, Xianwen Mao,
Kristin Vicari, and Gregg Beckham and the fall 2009 NREL-MIT practice
school station for particle size work and development.
NR 33
TC 8
Z9 8
U1 1
U2 31
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 8756-7938
J9 BIOTECHNOL PROGR
JI Biotechnol. Prog.
PD NOV-DEC
PY 2011
VL 27
IS 6
BP 1751
EP 1759
DI 10.1002/btpr.669
PG 9
WC Biotechnology & Applied Microbiology; Food Science & Technology
SC Biotechnology & Applied Microbiology; Food Science & Technology
GA 855GH
UT WOS:000297551300026
PM 21812118
ER
PT J
AU Rasley, A
AF Rasley, Amy
TI Editorial
SO BRIEFINGS IN FUNCTIONAL GENOMICS
LA English
DT Editorial Material
C1 Lawrence Livermore Natl Lab, Host Pathogen Biol Grp, Livermore, CA USA.
RP Rasley, A (reprint author), Lawrence Livermore Natl Lab, Host Pathogen Biol Grp, Livermore, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 2041-2649
J9 BRIEF FUNCT GENOMICS
JI Brief. Funct. Genomics
PD NOV
PY 2011
VL 10
IS 6
SI SI
BP 321
EP 321
DI 10.1093/bfgp/elr043
PG 1
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 866NF
UT WOS:000298387100001
PM 22199375
ER
PT J
AU Hu, B
Xie, G
Lo, CC
Starkenburg, SR
Chain, PSG
AF Hu, Bin
Xie, Gary
Lo, Chien-Chi
Starkenburg, Shawn R.
Chain, Patrick S. G.
TI Pathogen comparative genomics in the next-generation sequencing era:
genome alignments, pangenomics and metagenomics
SO BRIEFINGS IN FUNCTIONAL GENOMICS
LA English
DT Article
DE comparative genomics; whole-genome alignment; next-generation
sequencing; pathogen pangenomics; bioinformatics
ID BACTERIAL PAN-GENOME; SHORT READ ALIGNMENT; YERSINIA-PESTIS;
ESCHERICHIA-COLI; BACILLUS-ANTHRACIS; STREPTOCOCCUS-PNEUMONIAE;
GENE-EXPRESSION; DNA; DIVERSITY; EVOLUTION
AB As soon as whole-genome sequencing entered the scene in the mid-1990s and demonstrated its use in revealing the entire genetic potential of any given microbial organism, this technique immediately revolutionized the way pathogen (and many other fields of) research was carried out. The ability to perform whole-genome comparisons further transformed the field and allowed scientists to obtain information linking phenotypic dissimilarities among closely related organisms and their underlying genetic mechanisms. Such comparisons have become commonplace in examining strain-to-strain variability, as well as comparing pathogens to less, or nonpathogenic near neighbors. In recent years, a bloom in novel sequencing technologies along with continuous increases in throughput has occurred, inundating the field with various types of massively parallel sequencing data and further transforming comparative genomics research. Here, we review the evolution of comparative genomics, its impact in understanding pathogen evolution and physiology and the opportunities and challenges presented by next-generation sequencing as applied to pathogen genome comparisons.
C1 [Chain, Patrick S. G.] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA.
RP Chain, PSG (reprint author), Los Alamos Natl Lab, Biosci Div, MS-M888,HRL, Los Alamos, NM 87545 USA.
EM pchain@lanl.gov
RI chain, patrick/B-9777-2013;
OI Chain, Patrick/0000-0003-3949-3634; xie, gary/0000-0002-9176-924X
FU Los Alamos National Laboratory [20100034DR, 20110051DR]; US Department
of Energy Joint Genome Institute through the Office of Science of the US
Department of Energy [DE-AC02-05CH11231]; US Defense Threat Reduction
Agency [B104153I, B084531I]
FX This study was supported in part by Los Alamos National Laboratory
Laboratory-Directed Research and Development grants (numbers 20100034DR
and 20110051DR); the US Department of Energy Joint Genome Institute
through the Office of Science of the US Department of Energy (under
Contract No. DE-AC02-05CH11231); the US Defense Threat Reduction Agency
(contract numbers B104153I and B084531I).
NR 118
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U1 1
U2 19
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 2041-2649
EI 2041-2657
J9 BRIEF FUNCT GENOMICS
JI Brief. Funct. Genomics
PD NOV
PY 2011
VL 10
IS 6
SI SI
BP 322
EP 333
DI 10.1093/bfgp/elr042
PG 12
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 866NF
UT WOS:000298387100002
PM 22199376
ER
PT J
AU McLoughlin, KS
AF McLoughlin, Kevin S.
TI Microarrays for Pathogen Detection and Analysis
SO BRIEFINGS IN FUNCTIONAL GENOMICS
LA English
DT Article
DE microarrays; pathogens; genomics
ID RESEQUENCING DNA MICROARRAYS; POLYMERASE CHAIN-REACTION; OLIGONUCLEOTIDE
ARRAY; MICROBIAL DETECTION; IDENTIFICATION; MICROORGANISMS;
NORMALIZATION; AMPLIFICATION; DIAGNOSIS; PATTERNS
AB DNA microarrays have emerged as a viable platform for detection of pathogenic organisms in clinical and environmental samples. These microbial detection arrays occupy a middle ground between low cost, narrowly focused assays such as multiplex PCR and more expensive, broad-spectrum technologies like high-throughput sequencing. While pathogen detection arrays have been used primarily in a research context, several groups are aggressively working to develop arrays for clinical diagnostics, food safety testing, environmental monitoring and biodefense. Statistical algorithms that can analyze data from microbial detection arrays and provide easily interpretable results are absolutely required in order for these efforts to succeed. In this article, we will review the most promising array designs and analysis algorithms that have been developed to date, comparing their strengths and weaknesses for pathogen detection and discovery.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP McLoughlin, KS (reprint author), Lawrence Livermore Natl Lab, POB 808,L-174, Livermore, CA 94551 USA.
EM mcloughlin2@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Lawrence Livermore National Laboratory [08-SI-002];
National Biodefense Analysis and Countermeasures Center [L164212/F0901]
FX This 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 supported by Laboratory Directed
Research and Development (grant number 08-SI-002) from Lawrence
Livermore National Laboratory, and by the National Biodefense Analysis
and Countermeasures Center (award number L164212/F0901). The funders had
no role in the study design, data collection and analysis, decision to
publish, or preparation of the manuscript. Opinions, interpretations,
conclusions and recommendations are those of the authors and are not
necessarily endorsed by the National Biodefense Analysis and
Countermeasures Center (NBACC), Department of Homeland Security (DHS),
or Battelle National Biodefense Institute (BNBI).
NR 37
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U1 3
U2 16
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 2041-2649
J9 BRIEF FUNCT GENOMICS
JI Brief. Funct. Genomics
PD NOV
PY 2011
VL 10
IS 6
SI SI
BP 342
EP 353
DI 10.1093/bfgp/elr027
PG 12
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 866NF
UT WOS:000298387100004
PM 21930658
ER
PT J
AU Navid, A
AF Navid, Ali
TI Applications of system-level models of metabolism for analysis of
bacterial physiology and identification of new drug targets
SO BRIEFINGS IN FUNCTIONAL GENOMICS
LA English
DT Article
DE flux balance analysis; systems biology; drug target identification;
bacterial metabolism; constraint-based modeling
ID GENOME-SCALE RECONSTRUCTION; ESCHERICHIA-COLI METABOLISM;
HAEMOPHILUS-INFLUENZAE RD; GENE KNOCKOUT SIMULATION; FLUX-BALANCE
ANALYSIS; PSEUDOMONAS-AERUGINOSA; OPTIMIZATION FRAMEWORK; NETWORK
RECONSTRUCTION; STOICHIOMETRIC MODEL; BIOMASS COMPOSITION
AB For nearly all of the 20th century, biologists gained considerable insights into the fundamental principles of cellular dynamics by examining select modules of biochemical processes. This form of analysis provides detailed information about the workings of the examined pathways. However, any attempt to alter the normal function of bacteria (perhaps for industrial or medicinal goals) requires a detailed global understanding of cellular mechanisms. The reductionist mode of analysis cannot provide the required information for developing the needed perspective on the complex interactions of biochemical pathways. Thankfully, the increasing availability of microbial genomic, transcriptomic, proteomic and other high-throughput data permits system-level analyses of microbiology. During the past two decades, systems biologists have developed constraint-based genome-scale models (GSM) of metabolism for a variety of pathogens. These models are important tools for assessing the metabolic capabilities of various genotypes. Simultaneously, new computational methods have been developed that use these network reconstructions to answer an array of important immunological questions. The objective of this article is to briefly review some of the uses of GSMs for studying bacterial metabolism under different conditions and to discuss how the calculated solutions can be used for rational design of drugs.
C1 Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Phys & Life Sci Directorate, Livermore, CA 94551 USA.
RP Navid, A (reprint author), Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Phys & Life Sci Directorate, Livermore, CA 94551 USA.
EM navid1@llnl.gov
RI Navid, Ali/A-1336-2013
OI Navid, Ali/0000-0003-2560-6984
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Lawrence Livermore National Laboratory [10-ERD-054
(LLNL-JRNL-483102)]
FX This work performed under the auspices of the US Department of Energy by
Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344.; The Laboratory Directed Research and Development
Program at Lawrence Livermore National Laboratory under project tracking
code 10-ERD-054 (LLNL-JRNL-483102).
NR 95
TC 4
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U1 0
U2 2
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 2041-2649
J9 BRIEF FUNCT GENOMICS
JI Brief. Funct. Genomics
PD NOV
PY 2011
VL 10
IS 6
SI SI
BP 354
EP 364
DI 10.1093/bfgp/elr034
PG 11
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 866NF
UT WOS:000298387100005
PM 22199377
ER
PT J
AU Weilhammer, DR
Rasley, A
AF Weilhammer, Dina R.
Rasley, Amy
TI Genetic approaches for understanding virulence in Toxoplasma gondii
SO BRIEFINGS IN FUNCTIONAL GENOMICS
LA English
DT Article
DE Toxoplasma gondii; virulence; ROP2 family
ID DEVELOPMENTALLY-REGULATED GENES; QUANTITATIVE TRAIT LOCI; SELECTABLE
MARKER; DIFFERENTIATION MUTANTS; PROTOZOAN PARASITE; PSEUDOACTIVE SITE;
HOST; FAMILY; RESISTANCE; IDENTIFICATION
AB Virulence of the protozoan parasite Toxoplasma gondii is highly variable and dependent upon the genotype of the parasite. The application of forward and reverse genetic approaches for understanding the genetic basis of virulence has resulted in the identification of several members of the ROP family as key mediators of virulence. More recently, modern genomic techniques have been used to address strain differences in virulence and have also identified additional members of the ROP family as likely mediators. The development of forward and reverse genetic, as well as modern genomic techniques, and the path to the discovery of the ROP genes as virulence factors is reviewed here.
C1 [Weilhammer, Dina R.] Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Livermore, CA 94550 USA.
RP Weilhammer, DR (reprint author), Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, 7000 East Ave, Livermore, CA 94550 USA.
EM weilhammer1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Lawrence Livermore National Laboratory [11-ERD-016]
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 and supported by Laboratory Directed Research and
Development grant 11-ERD-016 from Lawrence Livermore National Laboratory
to A.R.
NR 77
TC 3
Z9 5
U1 1
U2 12
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 2041-2649
EI 2041-2657
J9 BRIEF FUNCT GENOMICS
JI Brief. Funct. Genomics
PD NOV
PY 2011
VL 10
IS 6
SI SI
BP 365
EP 373
DI 10.1093/bfgp/elr028
PG 9
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 866NF
UT WOS:000298387100006
PM 21930659
ER
PT J
AU Whiteside, A
Xantheas, SS
Gutowski, M
AF Whiteside, Alexander
Xantheas, Sotiris S.
Gutowski, Maciej
TI Is Electronegativity a Useful Descriptor for the Pseudo-Alkali Metal
NH4?
SO CHEMISTRY-A EUROPEAN JOURNAL
LA English
DT Article
DE alkali metals; ammonium; computational chemistry; electronegativity; ion
pairs
ID GAUSSIAN-BASIS SETS; CORRELATED MOLECULAR CALCULATIONS; TOTAL-ENERGY
CALCULATIONS; WAVE BASIS-SET; AB-INITIO; PAULING UNITS; GROUND-STATE;
ATOMS; HYDROGEN; CHEMISTRY
AB Molecular ions in the form of pseudo-atoms are common structural motifs in chemistry, with properties that are transferrable between different compounds. We have determined one such property-the electronegativity-for the pseudo-alkali metal ammonium (NH4), and evaluated its reliability as a descriptor versus the electronegativities of the alkali metals. The computed properties of ammoniums binary complexes with astatine and of selected borohydrides confirm the similarity of NH4 to the alkali metal atoms, although the electronegativity of NH4 is relatively large in comparison to its cationic radius. We have paid particular attention to the molecular properties of ammonium (angular anisotropy, geometric relaxation and reactivity), which can cause deviations from the behaviour expected of a conceptual true alkali metal with this electronegativity. These deviations allow for the discrimination of effects associated with the molecular nature of NH4.
C1 [Whiteside, Alexander; Gutowski, Maciej] Heriot Watt Univ, Dept Chem, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland.
[Xantheas, Sotiris S.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA.
RP Gutowski, M (reprint author), Heriot Watt Univ, Dept Chem, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland.
EM m.gutowski@hw.ac.uk
RI Xantheas, Sotiris/L-1239-2015
FU Chemical Sciences, Geosciences, and Biosciences Division, Office of
Basic Energy Sciences, U.S. Department of Energy; Department of Energy's
Office of Biological and Environmental Research [GC20901]; EPSRC
FX This research was initiated as part of the Pacific Northwest National
Laboratory's "Summer Research Institute" in 2008. Part of this work was
supported by the Chemical Sciences, Geosciences, and Biosciences
Division, Office of Basic Energy Sciences, U.S. Department of Energy.
Battelle operates the Pacific Northwest National Laboratory for the U.
S. Department of Energy. This research was performed in part using the
Molecular Science Computing Facility (MSCF) in the Environmental
Molecular Sciences Laboratory, a national scientific user facility
sponsored by the Department of Energy's Office of Biological and
Environmental Research under Grand Challenge project GC20901, "Reliable
Electronic Structure Prediction of Molecular Properties". Additional
computer resources were provided by Heriot-Watt University. A.W. is
funded by an EPSRC studentship.
NR 66
TC 3
Z9 3
U1 0
U2 17
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 0947-6539
J9 CHEM-EUR J
JI Chem.-Eur. J.
PD NOV
PY 2011
VL 17
IS 47
BP 13197
EP 13205
DI 10.1002/chem.201101949
PG 9
WC Chemistry, Multidisciplinary
SC Chemistry
GA 861ZB
UT WOS:000298058500016
PM 21928287
ER
PT J
AU Ebeida, MS
Mitchell, SA
Davidson, AA
Patney, A
Knupp, PM
Owens, JD
AF Ebeida, Mohamed S.
Mitchell, Scott A.
Davidson, Andrew A.
Patney, Anjul
Knupp, Patrick M.
Owens, John D.
TI Efficient and good Delaunay meshes from random points
SO COMPUTER-AIDED DESIGN
LA English
DT Article; Proceedings Paper
CT Joint Conference of the SIAM Conference on Geometric and Physical
Modeling/SIAM Conference on Geometric Design/Annual Symposium on Solid
and Physical Modeling
CY OCT 24-27, 2011
CL Orlando, FL
SP SIAM
DE Computer-aided design, engineering, and manufacturing; Computational
geometry and topology; Product and assembly modeling; Geophysical
applications; Mesh generation
ID GENERATION; REFINEMENT; ALGORITHMS; FRACTURE
AB We present a Conforming Delaunay Triangulation (CDT) algorithm based on maximal Poisson disk sampling. Points are unbiased, meaning the probability of introducing a vertex in a disk-free subregion is proportional to its area, except in a neighborhood of the domain boundary. In contrast, Delaunay refinement CDT algorithms place points dependent on the geometry of empty circles in intermediate triangulations, usually near the circle centers. Unconstrained angles in our mesh are between 30 and 120, matching some biased CDT methods. Points are placed on the boundary using a one-dimensional maximal Poisson disk sampling. Any triangulation method producing angles bounded away from 0 and 180 must have some bias near the domain boundary to avoid placing vertices infinitesimally close to the boundary.
Random meshes are preferred for some simulations, such as fracture simulations where cracks must follow mesh edges, because deterministic meshes may introduce non-physical phenomena. An ensemble of random meshes aids simulation validation. Poisson-disk triangulations also avoid some graphics rendering artifacts, and have the blue-noise property.
We mesh two-dimensional domains that may be non-convex with holes, required points, and multiple regions in contact. Our algorithm is also fast and uses little memory. We have recently developed a method for generating a maximal Poisson distribution of n output points, where n = Theta(Area/r(2)) and r is the sampling radius. It takes O(n) memory and O(n log n) expected time; in practice the time is nearly linear. This, or a similar subroutine, generates our random points. Except for this subroutine, we provably use O(n) time and space. The subroutine gives the location of points in a square background mesh. Given this, the neighborhood of each point can be meshed independently in constant time. These features facilitate parallel and GPU implementations. Our implementation works well in practice as illustrated by several examples and comparison to Triangle. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Ebeida, Mohamed S.; Mitchell, Scott A.; Knupp, Patrick M.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Davidson, Andrew A.; Patney, Anjul; Owens, John D.] Univ Calif Davis, Elect & Comp Engn Dept, Davis, CA 95616 USA.
RP Mitchell, SA (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM msebeid@sandia.gov; samitch@sandia.gov
RI Owens, John/A-1256-2012
OI Owens, John/0000-0001-6582-8237
NR 41
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U1 0
U2 19
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0010-4485
J9 COMPUT AIDED DESIGN
JI Comput.-Aided Des.
PD NOV
PY 2011
VL 43
IS 11
SI SI
BP 1506
EP 1515
DI 10.1016/j.cad.2011.08.012
PG 10
WC Computer Science, Software Engineering
SC Computer Science
GA 854LE
UT WOS:000297495200021
ER
PT J
AU Nichols, J
Kang, S
Post, W
Wang, D
Bandaru, V
Manowitz, D
Zhang, X
Izaurralde, R
AF Nichols, J.
Kang, S.
Post, W.
Wang, D.
Bandaru, V.
Manowitz, D.
Zhang, X.
Izaurralde, R.
TI HPC-EPIC for high resolution simulations of environmental and
sustainability assessment
SO COMPUTERS AND ELECTRONICS IN AGRICULTURE
LA English
DT Article
DE EPIC model; High-resolution spatial simulation; Sustainability
assessment modeling; Agroecosystem; High performance computing (HPC)
ID INFORMATION
AB Multiple concerns over the impact of wide scale changes in land management have motivated comprehensive analyses of environmental sustainability of food and biofuel production. These call for high-resolution land management tools that enable comprehensive analyses of natural resources for decision-making. The agroecosystem simulation models with the most biophysical detail are point models, which often have a user interface that allows users to provide inputs and examine results for agricultural field scale analyses. These are not able to meet the needs of high-resolution regional or national simulations. We describe an efficient computational approach for deployment of the Environmental Policy Integrated Climate (EPIC) model at high-resolution spatial scales using high performance computing (HPC) techniques. We developed an integrated procedure for executing the millions of simulations required for high-resolution, regional studies, and also address building databases for model initialization, model forcing data, and model outputs. We first ported EPIC from Windows to an HPC platform and validated output from both platforms. We then developed methods of packaging simulations for efficient, unattended parallel execution on the HPC cluster. The job queuing system, Portable Batch System (PBS) is employed to control job submission. Simulation outputs are extracted to PostgreSQL database for analysis. In a case study covering four counties in central Wisconsin using HPC-EPIC, we finished over 140 K simulations in a total of 10 h on an HPC cluster using 20 nodes. This is a speedup of 40 times. More nodes could be used to achieve larger speedups. The HPC-EPIC model developed in this study is anticipated to provide information useful for high-resolution land use management and decision making. The framework for high-performance computing can be extended to other traditional, point-based biophysical simulation models. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Nichols, J.; Kang, S.; Post, W.; Wang, D.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Bandaru, V.; Manowitz, D.; Zhang, X.; Izaurralde, R.] Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
RP Nichols, J (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA.
EM nicholsja2@ornl.gov
RI Wang, Dali /B-4829-2012; Post, Wilfred/B-8959-2012; novacescu,
florica/B-4503-2011; zhang, xuesong/B-7907-2009
OI novacescu, florica/0000-0001-5561-4956;
FU DOE Great Lakes Bioenergy Research Center; US Department of Energy,
Office of Science, Office of Biological and Environmental Research
[DEFC02-07ER64494]; US Department of Energy [DE-AC05-00OR22725]
FX This work was funded by DOE Great Lakes Bioenergy Research Center
(http://www.greatlakesbioenergy.org) supported by the US Department of
Energy, Office of Science, Office of Biological and Environmental
Research, through Cooperative Agreement DEFC02-07ER64494. Oak Ridge
National Laboratory is managed by UT-Battelle LLC under Contract No.
DE-AC05-00OR22725 with the US Department of Energy.
NR 7
TC 17
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U1 2
U2 12
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0168-1699
J9 COMPUT ELECTRON AGR
JI Comput. Electron. Agric.
PD NOV
PY 2011
VL 79
IS 2
BP 112
EP 115
DI 10.1016/j.compag.2011.08.012
PG 4
WC Agriculture, Multidisciplinary; Computer Science, Interdisciplinary
Applications
SC Agriculture; Computer Science
GA 868PU
UT WOS:000298536000002
ER
PT J
AU Mikaelian, KO
AF Mikaelian, Karnig O.
TI Testing diamond strength at high pressure
SO DIAMOND AND RELATED MATERIALS
LA English
DT Article
DE Diamond strength; Improved Steinberg-Guinan model; High-Power Lasers;
Rayleigh-Taylor instability with Strength
ID TAYLOR INSTABILITY; LASER; STATE
AB We present two designs to measure the strength of diamond, natural or synthetic, above 30 Mbar. Both designs are based on the Rayleigh-Taylor instability carried out on a laser system providing a truncated ignition pulse. The first is an indentation technique which can be challenging to diagnose because of the low-Z value of carbon. The second is similar to that used in DAC (diamond anvil cell) experiments with a flat diamond squeezing a highly perturbed gold foil and provides the required high-Z diagnostics. Based on two-dimensional hydrocode simulations we conclude that the second technique is superior because of its sensitivity to diamond strength coupled with the benefit of diagnostics at these extremely high pressures. (C) 2011 Elsevier B.V. All rights reserved.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Mikaelian, KO (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM mikaelian1@llnl.gov
FU U. S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX I am grateful to Dan Clark for providing the ignition pulse, a
photon-frequency dependent source. This work was performed under the
auspices of the U. S. Department of Energy by Lawrence Livermore
National Laboratory under Contract DE-AC52-07NA27344.
NR 29
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Z9 0
U1 1
U2 12
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0925-9635
J9 DIAM RELAT MATER
JI Diam. Relat. Mat.
PD NOV
PY 2011
VL 20
IS 10
BP 1340
EP 1343
DI 10.1016/j.diamond.2011.09.005
PG 4
WC Materials Science, Multidisciplinary
SC Materials Science
GA 868GX
UT WOS:000298512800008
ER
PT J
AU Lucas, CA
Thompson, P
Grunder, Y
Markovic, NM
AF Lucas, Christopher A.
Thompson, Paul
Gruender, Yvonne
Markovic, Nenad M.
TI The structure of the electrochemical double layer: Ag(111) in alkaline
electrolyte
SO ELECTROCHEMISTRY COMMUNICATIONS
LA English
DT Article
DE X-ray scattering; Silver; Cations; Interface structure; Hydroxide;
Alkaline electrolyte
ID IN-SITU; NONCOVALENT INTERACTIONS; CYCLIC VOLTAMMETRY;
RAMAN-SPECTROSCOPY; INTERFACES; FACES
AB The structure of the electrochemical double layer at the interface between a Ag(111) electrode and 0.1 M KOH electrolyte has been probed using in-situ surface X-ray scattering (SXS). Detailed modeling of the SXS data at negative potential (E = -1.0 V versus SCE) is consistent with the presence of an hydrated K(+) cation layer at a distance of 4.1 +/- 0.3 angstrom from the Ag surface and at positive potential (E = -0.2 V), indicates that the presence of OH(ad) stabilizes the hydrated K(+) cations through a non-covalent interaction forming a compact double layer structure in which the Ag-K(+) distance is reduced to 3.6 +/- 0.2 angstrom. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Lucas, Christopher A.; Thompson, Paul] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England.
[Thompson, Paul; Gruender, Yvonne] European Synchrotron Radiat Facil, F-38043 Grenoble, France.
[Markovic, Nenad M.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Lucas, CA (reprint author), Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England.
EM clucas@liv.ac.uk
RI Grunder, Yvonne/C-6137-2011;
OI Grunder, Yvonne/0000-0002-5295-0927; Lucas,
Christopher/0000-0001-5743-3868
FU Office of Science, Office of Basic Energy Sciences, Materials Science
Division (MSD), US Department of Energy (DOE) [DE-AC03-76SF00098]; EPSRC
FX This work was supported by the Director, Office of Science, Office of
Basic Energy Sciences, Materials Science Division (MSD), US Department
of Energy (DOE) under contract no. DE-AC03-76SF00098. The X-ray
scattering experiments were performed on the EPSRC-funded XMaS CRG
beamline (BM 28) at the ESRF, Grenoble and on beamline I07 at the
Diamond Light Source.
NR 15
TC 11
Z9 11
U1 2
U2 31
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1388-2481
J9 ELECTROCHEM COMMUN
JI Electrochem. Commun.
PD NOV
PY 2011
VL 13
IS 11
BP 1205
EP 1208
DI 10.1016/j.elecom.2011.08.043
PG 4
WC Electrochemistry
SC Electrochemistry
GA 854KG
UT WOS:000297492800015
ER
PT J
AU Lucas, IT
Syzdek, J
Kostecki, R
AF Lucas, Ivan T.
Syzdek, Jaroslaw
Kostecki, Robert
TI Interfacial processes at single-crystal beta-Sn electrodes in organic
carbonate electrolytes
SO ELECTROCHEMISTRY COMMUNICATIONS
LA English
DT Article
DE Li-ion battery; Sn anode; SEI layer; Single crystal electrode; Organic
electrolyte
ID IN-SITU AFM; ELECTROCHEMICAL REACTION; IRREVERSIBLE CAPACITY; ANODE;
LITHIUM; LI; ELLIPSOMETRY; BATTERIES; FILMS; FTIR
AB In situ atomic force microscopy (AFM) and spectroscopic ellipsometry were used to study the mechanism of organic carbonate electrolytes decomposition and surface layer (re)formation at beta-Sn(001) and (100) single crystal electrodes. Interfacial phenomena were investigated at potentials above 0.8 V vs. Li/Li(+), i.e. where no Sn-Li alloying takes place. The Sn(001) electrode tends to form a protective surface layer of electrolyte reduction products during the first cathodic CV scan, which effectively inhibits further reduction of the electrolyte upon cycling. In contrast, the Sn(100) electrode produces a thick, inhomogeneous and unstable surface layer. The observed significant difference of Sn reactivity toward the electrolyte as a function of Sn surface crystalline orientation suggests radically different reaction paths, reduction products, and properties of the surface film. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Lucas, Ivan T.; Syzdek, Jaroslaw; Kostecki, Robert] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Kostecki, R (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
EM r_kostecki@lbl.gov
RI LUCAS, Ivan /S-5742-2016
OI LUCAS, Ivan /0000-0001-8930-0437
FU Office of Vehicle Technologies of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX This work was supported by the Assistant Secretary for Energy Efficiency
and Renewable Energy, Office of Vehicle Technologies of the U.S.
Department of Energy under Contract No. DE-AC02-05CH11231. We would like
to thank Dr. Frank McLarnon for helpful comments and suggestions during
preparation of this manuscript.
NR 19
TC 21
Z9 21
U1 2
U2 62
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1388-2481
J9 ELECTROCHEM COMMUN
JI Electrochem. Commun.
PD NOV
PY 2011
VL 13
IS 11
BP 1271
EP 1275
DI 10.1016/j.elecom.2011.08.026
PG 5
WC Electrochemistry
SC Electrochemistry
GA 854KG
UT WOS:000297492800032
ER
PT J
AU Liu, C
Qu, YY
Luo, Y
Fang, N
AF Liu, Chang
Qu, Yueyang
Luo, Yong
Fang, Ning
TI Recent advances in single-molecule detection on micro- and nano-fluidic
devices
SO ELECTROPHORESIS
LA English
DT Review
DE Lab-on-a-chip; Microfluidics; Miniaturization; Single-molecule
detection; Ultra-sensitive detection
ID OPTICAL RECONSTRUCTION MICROSCOPY; METHACRYLATE MICROFLUIDIC CHIP;
LIQUID-SOLID INTERFACE; DNA-MOLECULES; CAPILLARY-ELECTROPHORESIS;
PROTEIN MOLECULES; WAVE-GUIDES; CORRELATION SPECTROSCOPY; NANOFLUIDIC
CHANNELS; LATEST DEVELOPMENTS
AB Single-molecule detection (SMD) allows static and dynamic heterogeneities from seemingly equal molecules to be revealed in the studies of molecular structures and intra- and inter-molecular interactions. Micro- and nanometer-sized structures, including channels, chambers, droplets, etc., in microfluidic and nanofluidic devices allow diffusion-controlled reactions to be accelerated and provide high signal-to-noise ratio for optical signals. These two active research frontiers have been combined to provide unprecedented capabilities for chemical and biological studies. This review summarizes the advances of SMD performed on microfluidic and nanofluidic devices published in the past five years. The latest developments on optical SMD methods, microfluidic SMD platforms, and on-chip SMD applications are discussed herein and future development directions are also envisioned.
C1 [Qu, Yueyang; Luo, Yong] Dalian Univ Technol, Sch Pharmaceut Sci & Technol, Dalian, Liaoning, Peoples R China.
[Liu, Chang; Fang, Ning] Iowa State Univ, Ames Lab, US Dept Energy, Ames, IA USA.
[Liu, Chang; Fang, Ning] Iowa State Univ, Dept Chem, Ames, IA USA.
[Liu, Chang] Univ British Columbia, Dept Chem, Vancouver, BC, Canada.
RP Luo, Y (reprint author), Dalian Univ Technol, Sch Pharmaceut Sci & Technol, Dalian, Liaoning, Peoples R China.
EM yluo@dlut.edu.cn; nfang@iastate.edu
RI Liu, Chang/F-5472-2011; Fang, Ning/A-8456-2011;
OI Liu, Chang/0000-0003-0508-4357
FU Fundamental Research Funds for the Central Universities, China
[DUT10RC(3)92, DUT11SM11]; U.S. Department of Energy, Office of Basic
Energy Sciences, Division of Chemical Sciences, Geosciences, and
Biosciences through the Ames Laboratory; Iowa State University
[DE-AC02-07CH11358]; University of British Columbia
FX This work was supported by the "Fundamental Research Funds for the
Central Universities, China" (DUT10RC(3)92 and DUT11SM11) and U.S.
Department of Energy, Office of Basic Energy Sciences, Division of
Chemical Sciences, Geosciences, and Biosciences through the Ames
Laboratory. The Ames Laboratory is operated for the U.S. Department of
Energy by Iowa State University under contract no. DE-AC02-07CH11358.
The authors specially thank Prof. David Chen of University of British
Columbia for his financial support for Chang Liu's visit to Ames Lab.
NR 137
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U1 8
U2 89
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0173-0835
J9 ELECTROPHORESIS
JI Electrophoresis
PD NOV
PY 2011
VL 32
IS 23
SI SI
BP 3308
EP 3318
DI 10.1002/elps.201100159
PG 11
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 865HD
UT WOS:000298300900002
PM 22134976
ER
PT J
AU Hughes, JS
Deng, ZD
Weiland, MA
Martinez, JJ
Yuan, Y
AF Hughes, James S.
Deng, Z. Daniel
Weiland, Mark A.
Martinez, Jayson J.
Yuan, Yong
TI Water Velocity Measurements on a Vertical Barrier Screen at the
Bonneville Dam Second Powerhouse
SO ENERGIES
LA English
DT Article
DE acoustic Doppler velocimetry; fish screen; juvenile bypass system;
powerhouse
ID FISH SCREEN; TURBULENCE; FLOW; ADV
AB Fish screens at hydroelectric dams help to protect rearing and migrating fish by preventing them from passing through the turbines and directing them towards the bypass channels by means of a sweeping flow parallel to the screen. However, fish screens may actually be harmful to fish if the fish become impinged on the surface of the screen or become disoriented due to poor flow conditions near the screen. Recent modifications to the vertical barrier screens (VBS) in the gate wells at the Bonneville Dam second powerhouse (B2) were intended to increase the guidance of juvenile salmonids into the juvenile bypass system but have resulted in higher mortality and descaling rates of hatchery subyearling Chinook salmon during the 2008 juvenile salmonid passage season. To investigate the potential cause of the high mortality and descaling rates, an in situ water velocity measurement study was conducted using acoustic Doppler velocimeters in the gate well slots at turbine units 12A and 14A of B2. From the measurements collected, the average approach velocity, sweep velocity, and the root mean square value of the velocity fluctuations were calculated. The approach velocities measured across the face of the VBS were variable and typically less than 0.3 m/s, but fewer than 50% were less than or equal to 0.12 m/s. There was also large variance in sweep velocities across the face of the VBS with most measurements recorded at less than 1.5 m/s. Results of this study revealed that the approach velocities in the gate wells exceeded criteria intended to improve fish passage conditions that were recommended by National Marine Fisheries Service and the Washington State Department of Fish and Wildlife. The turbulence measured in the gate well may also result in suboptimal fish passage conditions but no established guidelines to contrast those results have been published.
C1 [Hughes, James S.; Deng, Z. Daniel; Weiland, Mark A.; Martinez, Jayson J.; Yuan, Yong] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Hughes, JS (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM james.hughes@pnnl.gov; zhiqun.deng@pnnl.gov; Mark.Weiland@pnnl.gov;
Jayson.Martinez@pnnl.gov; Yong.Yuan@pnnl.gov
RI Deng, Daniel/A-9536-2011
OI Deng, Daniel/0000-0002-8300-8766
FU U.S. Army Corps of Engineers (USACE), Portland District
FX The work described in this article was funded by the U.S. Army Corps of
Engineers (USACE), Portland District. The study was conducted at Pacific
Northwest National Laboratory (PNNL), operated by Battelle for the U.S.
Department of Energy. The authors thank Dennis Schwartz, Randy Lee, Jon
Rerecich, Ben Hausmann, and Kasey Welch (USACE) and Gene Ploskey, Bob
Mueller, Eric Fischer, Geoff McMichael, and Shon Zimmerman (PNNL) for
their help with this study.
NR 19
TC 0
Z9 0
U1 3
U2 14
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 1996-1073
J9 ENERGIES
JI Energies
PD NOV
PY 2011
VL 4
IS 11
BP 2038
EP 2048
DI 10.3390/en4112038
PG 11
WC Energy & Fuels
SC Energy & Fuels
GA 857CT
UT WOS:000297693000011
ER
PT J
AU Aad, G
Abbott, B
Abdallah, J
Abdelalim, AA
Abdesselam, A
Abdinov, O
Abi, B
Abolins, M
Abramowicz, H
Abreu, H
Acerbia, E
Acharya, BS
Adams, DL
Addy, TN
Adelman, J
Aderholz, M
Adomeit, S
Adragna, P
Adye, T
Aefsky, S
Aguilar-Saavedra, JA
Aharrouche, M
Ahlen, SP
Ahles, F
Ahmad, A
Ahsan, M
Aielli, G
Akdogan, T
Akesson, TPA
Akimoto, G
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de Renstrom, PAB
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Feligioni, L
Fellmann, D
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Fengd, C
Feng, EJ
Fenyuk, AB
Ferencei, J
Ferland, J
Fernando, W
Ferrag, S
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Ferrari, A
Ferrari, P
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Parodi, AF
Fiascaris, M
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CA ATLAS Collaboration
TI Measurement of the jet fragmentation function and transverse profile in
proton-proton collisions at a center-of-mass energy of 7 TeV with the
ATLAS detector
SO EUROPEAN PHYSICAL JOURNAL C
LA English
DT Article
ID SCALING VIOLATIONS; Q2 DEPENDENCE; HERA; QCD; DISTRIBUTIONS;
ANNIHILATION; SCATTERING; QUARK
AB The jet fragmentation function and transverse profile for jets with 25 GeV < p(Tjet) < 500 GeV and |eta(jet)| < 1.2 produced in proton-proton collisions with a center-of-mass energy of 7 TeV are presented. The measurement is performed using data with an integrated luminosity of 36 pb(-1). Jets are reconstructed and their momentum measured using calorimetric information. The momenta of the charged particle constituents are measured using the tracking system. The distributions corrected for detector effects are compared with various Monte Carlo event generators and generator tunes. Several of these choices show good agreement with the measured fragmentation function. None of these choices reproduce both the transverse profile and fragmentation function over the full kinematic range of the measurement.
C1 [Aad, G.; Ahles, F.; Beckingham, M.; Bernhard, R.; Bitenc, U.; Bruneliere, R.; Caron, S.; Christov, A.; Consorti, V.; Eckert, S.; Fehling-Kaschek, M.; Flechl, M.; Glatzer, J.; Hartert, J.; Herten, G.; Horner, S.; Jakobs, K.; Ketterer, C.; Kollefrath, M.; Kononov, A. I.; Kuehn, S.; Lai, S.; Landgraf, U.; Lohwasser, K.; Ludwig, I.; Ludwig, J.; Lumb, D.; Mahboubi, K.; Meinhardt, J.; Mohr, W.; Nilsen, H.; Parzefall, U.; Rammensee, M.; Runge, K.; Rurikova, Z.; Schmidt, E.; Schumacher, M.; Siegert, F.; Stoerig, K.; Sundermann, J. E.; Temming, K. K.; Thoma, S.; Tobias, J.; Tsiskaridze, V.; Venturi, M.; Vivarelli, I.; von Radziewski, H.; Warsinsky, M.; Weiser, C.; Werner, M.; Wiik, L. A. M.; Winkelmann, S.; Xie, S.; Zimmermann, S.] Univ Freiburg, Fak Math & Phys, D-79106 Freiburg, Germany.
[Alam, M. S.; Ernst, J.; Rojo, V.] SUNY Albany, Albany, NY 12222 USA.
[Bahinipati, S.; Buchanan, N. J.; Chan, K.; Gingrich, D. M.; Kim, M. S.; Liu, S.; Moore, R. W.; Pinfold, J. L.; Soni, N.; Subramania, H. S.; Vaque, F. Vives] Univ Alberta, Dept Phys, Edmonton, AB, Canada.
[Cakir, O.; Ciftci, A. K.; Ciftci, R.; Persembe, S.] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey.
[Yildiz, H. Duran] Dumlupinar Univ, Dept Phys, Kutahya, Turkey.
[Yilmaz, M.] Gazi Univ, Dept Phys, Ankara, Turkey.
[Sultansoy, S.] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey.
[Cakir, I. Turk] Turkish Atom Energy Commiss, Ankara, Turkey.
[Bella, L. Aperio; Aubert, B.; Berger, N.; Colas, J.; Di Ciaccio, L.; Doan, T. K. O.; Elles, S.; Ghez, P.; Goy, C.; Guillemin, T.; Helary, L.; Hryn'ova, T.; Jeremie, A.; Jezequel, S.; Kataoka, M.; Labbe, J.; Lafaye, R.; Leveque, J.; Lombardo, V. P.; Massol, N.; Perrodo, P.; Przysiezniak, H.; Richter-Was, E.; Sauvage, G.; Sauvan, E.; Todorov, T.; Tsionou, D.; Wingerter-Seez, I.; Zitoun, R.; Zolnierowski, Y.] Univ Savoie, Annecy Le Vieux, France.
[Bella, L. Aperio; Aubert, B.; Berger, N.; Colas, J.; Di Ciaccio, L.; Doan, T. K. O.; Elles, S.; Ghez, P.; Goy, C.; Guillemin, T.; Helary, L.; Hryn'ova, T.; Jeremie, A.; Jezequel, S.; Kataoka, M.; Labbe, J.; Lafaye, R.; Leveque, J.; Lombardo, V. P.; Massol, N.; Perrodo, P.; Przysiezniak, H.; Richter-Was, E.; Sauvage, G.; Sauvan, E.; Todorov, T.; Tsionou, D.; Wingerter-Seez, I.; Zitoun, R.; Zolnierowski, Y.] CNRS, LAPP, IN2P3, Annecy Le Vieux, France.
[Asquith, L.; Blair, R. E.; Chekanov, S.; Dawson, J. W.; Fellmann, D.; Guarino, V. J.; Hill, D.; Hill, N.; Karr, K.; LeCompte, T.; Malon, D.; May, E. N.; Nodulman, L.; Paramonov, A.; Price, L. E.; Proudfoot, J.; Ferrando, B. M. Salvachua; Schlereth, J. L.; Stanek, R. W.; Underwood, D. G.; van Gemmeren, P.; Vaniachine, A.; Yoshida, R.; Zhang, J.] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.
[Cheu, E.; Johns, K. A.; Kaushik, V.; Lampen, C. L.; Lampl, W.; Lei, X.; Loch, P.; Mal, P.; Paleari, C. P.; Ruehr, F.; Rutherfoord, J. P.; Shaver, L.; Shupe, M. A.] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA.
[Brandt, A.; Brown, H.; De, K.; Farbin, A.; Heelan, L.; Hernandez, C. M.; Kim, H.; Nilsson, P.; Ozturk, N.; Pravahan, R.; Sarkisyan-Grinbaum, E.; Sosebee, M.; Spurlock, B.; Stradling, A. R.; Usai, G.; Vartapetian, A.; White, A.; Yu, J.] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA.
[Antonaki, A.; Fassouliotis, D.; Giakoumopoulou, V.; Giokaris, N.; Ioannou, P.; Kourkoumelis, C.; Manousakis-Katsikakis, A.; Tzanakos, G.; Vellidis, C.] Univ Athens, Dept Phys, Athens, Greece.
[Alexopoulos, T.; Avramidou, R.; Dris, M.; Filippas, A.; Fokitis, M.; Gazis, E. N.; Iakovidis, G.; Katsoufis, E.; Leontsinis, S.; Maltezos, S.; Panagiotopoulou, E.; Papadopoulou, Th. D.; Savva, P.; Tsipolitis, G.; Vlachos, S.; Xaplanteris, L.] Natl Tech Univ Athens, Dept Phys, Zografos, Greece.
[Abdinov, O.; Aliyev, M.; Huseynov, N.; Khalil-zada, F.; Rzaeva, S.] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan.
[Abdallah, J.; Bosman, M.; Casado, M. P.; Cavalli-Sforza, M.; Conidi, M. C.; Demirkoz, B.; Dosil, M.; Espinal Curull, X.; Grinstein, S.; Helsens, C.; Juste Rozas, A.; Korolkov, I.; Martinez, M.; Meoni, E.; Miralles Verge, L.; Nadal, J.; Osuna, C.; Pacheco Pages, A.; Padilla Aranda, C.; Perez Codina, E.; Riu, I.; Rossetti, V.; Segura, E.; Succurro, A.; Sushkov, S.; Vorwerk, V.] ICREA, Barcelona, Spain.
[Abdallah, J.; Bosman, M.; Casado, M. P.; Cavalli-Sforza, M.; Conidi, M. C.; Demirkoz, B.; Dosil, M.; Espinal Curull, X.; Grinstein, S.; Helsens, C.; Juste Rozas, A.; Korolkov, I.; Martinez, M.; Meoni, E.; Miralles Verge, L.; Nadal, J.; Osuna, C.; Pacheco Pages, A.; Padilla Aranda, C.; Perez Codina, E.; Riu, I.; Rossetti, V.; Segura, E.; Succurro, A.; Sushkov, S.; Vorwerk, V.] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain.
[Abdallah, J.; Bosman, M.; Casado, M. P.; Cavalli-Sforza, M.; Conidi, M. C.; Demirkoz, B.; Dosil, M.; Espinal Curull, X.; Grinstein, S.; Helsens, C.; Juste Rozas, A.; Korolkov, I.; Martinez, M.; Meoni, E.; Miralles Verge, L.; Nadal, J.; Osuna, C.; Pacheco Pages, A.; Padilla Aranda, C.; Perez Codina, E.; Riu, I.; Rossetti, V.; Segura, E.; Succurro, A.; Sushkov, S.; Vorwerk, V.] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain.
[Borjanovic, I.; Krstic, J.; Popovic, D. S.; Reljic, D.; Sijacki, Dj.; Simica, Lj.; Vranjes, N.] Univ Belgrade, Inst Phys, Belgrade, Serbia.
[Bozovic-Jelisavcic, I.; Jovin, T.; Mamuzic, J.; Mudrinic, M.] Vinca Inst Nucl Sci, Belgrade, Serbia.
[Buanes, T.; Burgess, T.; Eigen, G.; Hodgkinson, M. C.; Johansen, L. G.; Kastanas, A.; Liebig, W.; Lipniacka, A.; Rosendahl, P. L.; Sandaker, H.; Sjursen, T. B.; Stugu, B.; Tonoyan, A.; Ugland, M.] Univ Bergen, Dept Phys & Technol, Bergen, Norway.
[Arguin, J-F.; Bach, A. M.; Galtieri, A. Barbaro; Barnett, R. M.; Beringer, J.; Biesiada, J.; Calafiura, P.; Ciocio, A.; Cooke, M.; Dube, S.; Einsweiler, K.; Gaponenko, A.; Garcia-Sciveres, M.; Gilchriese, M.; Haber, C.; Heinemann, B.; Hinchliffe, I.; Hsu, S. -C.; Hurwitz, M.; Joseph, J.; Lavrijsen, W.; Leggett, C.; Loscutoff, P.; Lys, J.; Madaras, R. J.; Griso, S. Pagan; Quarrie, D. R.; Rammes, M.; Ruwiedel, C.; Scherzer, M. I.; Shapiro, M.; Siegrist, J.; Skinnari, L. A.; Stavropoulos, G.; Tatarkhanov, M.; Tompkins, L.; Tsulaia, V.; Vahsen, S.; Varouchas, D.; Virzi, J.; Yao, Y.; Zenz, S.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA.
[Aliev, M.; Brandt, G.; Diglio, S.; Giorgi, F. M.; Grancagnolo, S.; Herrberg, R.; Hristova, I.; Kind, O.; Kolanoski, H.; Kwee, R.; Lacker, H.; Leyton, M.; Lohse, T.; Mandrysch, R.; Nikiforov, A.; Schulz, H.; Nedden, M. zur] Humboldt Univ, Dept Phys, Berlin, Germany.
[Ancu, L. S.; Battaglia, A.; Beck, H. P.; Borer, C.; Ereditato, A.; Martin, T. Fonseca; Gallo, V.; Haug, S.; Kabana, S.; Kruker, T.; Pretzl, K.; Rolli, S.; Topfel, C.; Venturi, N.; Weber, M. S.] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland.
[Ancu, L. S.; Battaglia, A.; Beck, H. P.; Borer, C.; Ereditato, A.; Martin, T. Fonseca; Gallo, V.; Haug, S.; Kabana, S.; Kruker, T.; Pretzl, K.; Rolli, S.; Topfel, C.; Venturi, N.; Weber, M. S.] Univ Bern, High Energy Phys Lab, Bern, Switzerland.
[Bansil, H. S.; Bracinik, J.; Charlton, D. G.; Collins, N. J.; Curtis, C. J.; Dowell, J. D.; Garvey, J.; Hadley, D. R.; Harrison, K.; Hawkes, C. M.; Hillier, S. J.; Lenzen, G.; Lilley, J. N.; Mahout, G.; Martin, T. A.; Mclaughlan, T.; Newman, P. R.; O'Neale, S. W.; Palmer, J. D.; Slater, M.; Thomas, J. P.; Thompson, P. D.; Watkins, P. M.; Watson, A. T.; Watson, M. F.; Wilson, J. A.; Zeller, M.] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England.
[Akdogan, T.; Arik, M.; Istin, S.; Ozcan, V. E.; Rador, T.] Bogazici Univ, Dept Phys, Istanbul, Turkey.
[Cetin, S. A.] Dogus Univ, Div Phys, Istanbul, Turkey.
[Beddall, A. J.; Beddall, A.; Bingul, A.; Diblen, F.] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkey.
Istanbul Tech Univ, Dept Phys, TR-80626 Istanbul, Turkey.
[Bellagamba, L.; Bertin, A.; Bindi, M.; Boscherini, D.; Bruni, A.; Bruni, G.; Bruschi, M.; Caforio, D.; Ciocca, C.; Corradi, M.; De Castro, S.; Di Sipio, R.; Fabbri, L.; Ferraria, R.; Giacobbe, B.; Giusti, P.; Jha, M. K.; Massa, I.; Mengarelli, A.; Monzani, S.; Piccinini, M.; Polini, A.; Rinaldi, L.; Romano, M.; Sbarra, C.; Sbrizzi, A.; Semprini-Cesari, N.; Spighia, R.; Valentinetti, S.; Villa, M.; Zoccoli, A.] Univ Bologna, Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy.
[Bertin, A.; Bindi, M.; Caforio, D.; Ciocca, C.; De Castro, S.; Di Sipio, R.; Fabbri, L.; Massa, I.; Mengarelli, A.; Monzani, S.; Piccinini, M.; Romano, M.; Sbarra, C.; Sbrizzi, A.; Semprini-Cesari, N.; Valentinetti, S.; Villa, M.; Zoccoli, A.] Univ Bologna, Dipartimento Fis, Bologna, Italy.
[Alhroob, M.; Anders, C. F.; Arutinov, D.; Backhaus, M.; Barbero, M.; Bartsch, D.; Brock, I.; Cristinziani, M.; Desch, K.; Dingfelder, J.; Fischer, P.; Gaycken, G.; Geich-Gimbel, Ch.; Gonella, L.; Havranek, M.; Hellmich, D.; Hillert, S.; Huegging, F.; Ince, T.; Janus, M.; Khoriauli, G.; Koevesarki, P.; Kokott, T.; Kostyukhin, V. V.; Kraus, J. K.; Kroseberg, J.; Krueger, H.; Kruth, A.; Lapoire, C.; Lehmacher, M.; Leyko, A. M.; Limbach, C.; Loddenkoetter, T.; Mathes, M.; Mazur, M.; Moeser, N.; Mueller, K.; Nanava, G.; Nattermann, T.; Nuncio-Quiroz, A. -E.; Poghosyan, T.; Psoroulas, S.; Radics, B.; Runolfsson, O.; Schaepe, S.; Schmieden, K.; Schmitz, M.; Schumacher, J. W.; Schwindt, T.; Stillings, J. A.; Stockmanns, T.; Therhaag, J.; Tsung, J. -W.; Uchida, K.; Uhlenbrock, M.; Vlasov, N.; Vogel, A.; von Toerne, E.; Wermes, N.; Wienemann, P.; Zendler, C.; Zimmermann, R.; Zimmermann, S.] Univ Bonn, Inst Phys, Bonn, Germany.
[Ahlen, S. P.; Black, K. M.; Butler, J. M.; Hazen, E.; Lewandowska, M.; Love, J.; Marin, A.; Nation, N. R.; Posch, C.; Shank, J. T.; Whitaker, S. P.; Yan, Z.; Youssef, S.] Boston Univ, Dept Phys, Boston, MA 02215 USA.
[Aefsky, S.; Amelung, C.; Bensinger, J. R.; Blocker, C.; Kirsch, L. E.; Pomeroy, D.; Skvorodnev, N.; Wellenstein, H.] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA.
[Caloba, L. P.; Cerqueira, A. S.; Da Silva, P. V. M.; do Vale, M. A. B.; Maidantchik, C.; Marroquim, F.; Nepomuceno, A. A.; Perantoni, M.; Seixas, J. M.] Univ Fed Rio de Janeiro, COPPE EE IF, Rio De Janeiro, Brazil.
Univ Fed Juiz de Fora, Juiz de Fora, Brazil.
Univ Fed Sao Joao del Rei, Sao Joao del Rei, Brazil.
[Donadelli, M.; Leite, M. A. L.] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil.
[Adams, D. L.; Assamagan, K.; Baker, M. D.; Begel, M.; Bernius, C.; Chen, H.; Chernyatin, V.; Salgado, P. E. De Castro Faria; Debbe, R.; Dhullipudi, R.; Ernst, M.; Gadfort, T.; Gibbard, B.; Gordon, H. A.; Greenwood, Z. D.; Hackenburg, R.; Klimentov, A.; Lanni, F.; Lissauer, D.; Lynn, D.; Ma, H.; Maeno, T.; Majewski, S.; Nevski, P.; Nikolopoulos, K.; Damazio, D. Oliveira; Paige, F.; Panitkin, S.; Park, W.; Pleier, M. -A.; Poblaguev, A.; Polychronakos, V.; Protopopescu, S.; Purohit, M.; Rahm, D.; Rajagopalan, S.; Redlinger, G.; Sawyer, L.; Sircar, A.; Snyder, S.; Sondericker, J.; Steinberg, P.; Stumer, I.; Takai, H.; Tamsett, M. C.; Trivedi, A.; Undrus, A.; Wenaus, T.; Ye, S.; Yu, D.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
[Alexa, C.; Badescu, E.; Boldea, V.; Buda, S. I.; Caprini, I.; Caprini, M.; Ciubancan, M.; Constantinescu, S.; Cuciuc, C. -M.; Dita, P.; Dita, S.; Micua, L.; Pantea, D.; Popeneciu, G. A.; Rotaru, M.; Stoicea, G.; Tudorachea, A.; Tudorache, V.] Natl Inst Phys & Nucl Engn, Bucharest, Romania.
[Darlea, G. L.] Univ Politeh Bucharest, Bucharest, Romania.
W Univ Timisoara, Timisoara, Romania.
[Gonzalez Silva, M. L.; Otero y Garzon, G.; Piegaia, R.; Romeo, G.] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina.
[Ask, S.; Barber, T.; Barlow, N.; Batley, J. R.; Brochu, F. M.; Buttinger, W.; Carter, J. R.; Chapman, J. D.; Cowden, C.; French, S. T.; Frost, J. A.; Hill, J. C.; Khoo, T. J.; Lester, C. G.; Parker, M. A.; Phillips, A. W.; Robinson, D.; Sandoval, T.; Thomson, M.; Ward, C. P.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
[Archambault, J. P.; Cojocaru, C. D.; Gillberg, D.; Khakzad, M.; Koffas, T.; Liu, C.; McCarthy, T. G.; Oakham, F. G.; Randrianarivony, K.; Tarrade, F.; Ueno, R.; Vincter, M. G.; Whalen, K.] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada.
[Aleksa, M.; Amaral, P.; Anastopoulos, C.; Anghinolfi, F.; Arfaoui, S.; Baak, M. A.; Bachas, K.; Bachy, G.; Banfi, D.; Battistin, M.; Bellina, F.; Bellomo, M.; Beltramello, O.; Berge, D.; Bertinelli, F.; Bianchi, R. M.; Blanchot, G.; Bogaerts, J. A.; Boyd, J.; Braem, A.; Bremer, J.; Burckhart, H.; Butin, F.; Campana, S.; Garrido, M. D. M. Capeans; Carli, T.; Cataneo, F.; Catinaccio, A.; Cattai, A.; Cerri, A.; Barajas, C. A. Chavez; Chromek-Burckhart, D.; Cook, J.; Cote, D.; Danielsson, H. O.; Dauvergne, J. P.; Dell'Acqua, A.; Delmastro, M.; Delruelle, N.; Di Girolamo, A.; Di Girolamo, B.; Di Micco, B.; Dittus, F.; Dobinson, R.; Dobos, D.; Dobson, E.; Dopke, J.; Drevermann, H.; Dudarev, A.; Duehrssen, M.; Dunford, M.; Dydak, F.; Eifert, T.; Ellis, N.; Elsing, M.; Fabre, C.; Farthouat, P.; Fassnacht, P.; Foussat, A.; Francis, D.; Franz, S.; Froeschl, R.; Froidevaux, D.; Torregrosa, E. Fullana; Gabaldon, C.; Garelli, N.; Garonne, V.; Gayde, J-C.; Gianotti, F.; Gibson, S. M.; Godlewski, J.; Gonidec, A.; Goossens, L.; Grafstroem, P.; Gray, H. M.; Haas, S.; Hahn, F.; Haider, S.; Hatch, M.; Hauschild, M.; Hawkings, R. J.; Correia, A. M. Henriques; Hervas, L.; Hoecker, A.; Huhtinen, M.; Inigo-Golfin, J.; Jaekel, M. R.; Jenni, P.; Jonsson, O.; Joram, C.; Kaneda, M.; Kaplon, J.; Kerschen, N.; Klioutchnikova, T.; Knobloch, J.; Koeneke, K.; Kollar, D.; Kotamaeki, M. J.; Kvita, J.; Lamanna, M.; Lantzsch, K.; Lasseur, C.; Lassnig, M.; Miotto, G. Lehmann; Lenzi, B.; Lichard, P.; Magnoni, L.; Malyukov, S.; Mapelli, A.; Mapelli, L.; Marchand, J. F.; Marshall, Z.; Martin, B.; Maugain, J. M.; McLaren, R. A.; Menot, C.; Messina, A.; Meyer, T. C.; Michal, S.; Miele, P.; Molina-Perez, J.; Morley, A. K.; Mornacchi, G.; Muenstermann, D.; Nairz, A. M.; Nakahama, Y.; Negri, G.; Nessi, M.; Nicquevert, B.; Niinikoski, T.; Nordberg, M.; Nyman, T.; Palestini, S.; Pauly, T.; Pengo, R.; Pernegger, H.; Petersen, B. A.; Petersen, J.; Piacquadio, G.; Pirotte, O.; Pommes, K.; Poppleton, A.; Bueso, X. Portell; Poulard, G.; Pribyl, L.; Price, M. J.; Raymond, M.; Rembser, C.; Dos Santos, D. Roda; Roe, S.; Salzburger, A.; Savu, D. O.; Schlenker, S.; Schott, M.; Schuh, S.; Schuler, G.; Sfyrla, A.; Shimizu, S.; Sloper, J.; Spigo, G.; Spiwoks, R.; Stanecka, E.; Stewart, G. A.; Stockton, M. C.; Sumida, T.; Szeless, B.; Tappern, G. P.; Ten Kate, H.; Viegas, F. J. Tique Aires; Torchiani, I.; Tremblet, L.; Tricoli, A.; Tsarouchas, C.; Tyrvainen, H.; Unal, G.; van der Ster, D.; Vandelli, W.; Vandoni, G.; Rodriguez, F. Varela; Veness, R.; Vinek, E.; Voss, R.; Vuillermet, R.; Wells, P. S.; Wengler, T.; Wenig, S.; Werner, P.; Wilkens, H. G.; Winklmeier, F.; Wotschack, J.; Zajacova, Z.; Zsenei, A.; Zwalinski, L.] CERN, Geneva, Switzerland.
[Anderson, K. J.; Boveia, A.; Canelli, F.; Choudalakis, G.; Costin, T.; Feng, E. J.; Fiascaris, M.; Gardner, R. W.; Gupta, A.; Plante, I. Jen-La; Ju, X.; Kapliy, A.; Melachrinos, C.; Merritt, F. S.; Miller, D. W.; Onyisi, P. U. E.; Oreglia, M. J.; Pilcher, J. E.; Shochet, M. J.; Tuggle, J. M.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Diaz, M. A.; Panes, B.; Quinonez, F.; Urrejola, P.] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile.
[Brooks, W. K.; Kuleshov, S.; Pezoa, R.; Prokoshin, F.] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile.
[Bai, Y.; Cheng, S.; Han, H.; Jin, S.; Lu, F.; Ouyang, Q.; Shan, L. Y.; Tong, G.; Wang, H.; Xie, Y.; Xu, G.; Yang, Y.; Yuan, L.; Zheng, S.] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China.
[Han, L.; Jiang, Y.; Jin, G.; Li, S.; Liu, M.; Liu, Y.; Peng, H.; Wu, Y.; Xu, C.; Zhang, D.; Zhao, Z.; Zhu, Y.] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China.
[Chen, S.; Chen, T.; Ping, J.; Yu, J.; Zhong, J.] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China.
[Fengd, C.; Ge, P.; He, M.; Liu, D.; Meng, Z.; Miao, J.; Wang, J.; Zhan, Z.; Zhang, X.; Zhu, C. G.] Shandong Univ, High Energy Phys Grp, Jinan, Shandong, Peoples R China.
[Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Febbraro, R.; Ghodbane, N.; Guicheney, C.; Liao, H.; Pallin, D.; Podlyski, F.; Santoni, C.; Says, L. P.; Vazeille, F.] Clermont Univ, Lab Phys Corpusculaire, Aubiere, France.
[Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Febbraro, R.; Ghodbane, N.; Guicheney, C.; Liao, H.; Pallin, D.; Podlyski, F.; Santoni, C.; Says, L. P.; Vazeille, F.] Univ Clermont Ferrand, Aubiere, France.
[Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Febbraro, R.; Ghodbane, N.; Guicheney, C.; Liao, H.; Pallin, D.; Podlyski, F.; Santoni, C.; Says, L. P.; Vazeille, F.] CNRS, IN2P3, Aubiere, France.
[Andeen, T.; Angerami, A.; Brooijmans, G.; Copic, K.; Dodd, J.; Grau, N.; Guo, J.; Hughes, E. W.; Leltchouk, M.; Nikiforou, N.; Parsons, J. A.; Penson, A.; Perez, K.; Reale, V. Perez; Tian, F.; Tuts, P. M.; Urbaniec, D.; Williams, E.; Willis, W.; Wulf, E.; Zivkovic, L.] Columbia Univ, Nevis Lab, Irvington, NY USA.
[Boelaert, N.; Dam, M.; Driouichi, C.; Gregersen, K.; Hansen, J. R.; Hansen, J. B.; Hansen, J. D.; Hansen, P. H.; Heisterkamp, S.; Jakobsen, S.; Jez, P.; Joergensen, M. D.; Kadlecik, P.; Klinkby, E. B.; Lundquist, J.; Mackeprang, R.; Mehlhase, S.; Petersen, T. C.; Simonyan, M.; Xella, S.] Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
[Capua, M.; Crosetti, G.; Fazio, S.; La Rotonda, L.; Mastroberardino, A.; Morello, G.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] Univ Calabria, Ist Nazl Fis Nucl, Grp Coll Cosenza, Arcavacata Di Rende, Italy.
[Capua, M.; Crosetti, G.; Fazio, S.; La Rotonda, L.; Mastroberardino, A.; Morello, G.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] Univ Calabria, Dipartimento Fis, Arcavacata Di Rende, Italy.
[Ciba, K.; Dabrowski, W.; Dwuznik, M.; Jelen, K.; Kisielewska, D.; Koperny, S.; Kowalski, T. Z.; Mindur, B.; Rulikowska-Zarebska, E.; Toczek, B.] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland.
[Banas, E.; Blocki, J.; de Renstrom, P. A. Bruckman; Derendarz, D.; Gornicki, E.; Hajduk, Z.; Iwanski, W.; Kaczmarska, A.; Korcyl, K.; Malecki, Pa.; Malecki, P.; Olszewski, A.; Olszowska, J.; Trzupek, A.; Turala, M.; Wolter, M. W.; Wosiek, B. K.; Zemla, A.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland.
[Daya, R. K.; Yagci, K. Dindar; Firan, A.; Hadavand, H. K.; Hoffman, J.; Ilchenko, Y.; Ishmukhametov, R.; Joffe, D.; Kama, S.; Kasmi, A.; Kehoe, R.; Liang, Z.; Randle-Conde, A. S.; Renkel, P.; Rios, R. R.; Stroynowski, R.; Ye, J.; Zarzhitsky, P.] So Methodist Univ, Dept Phys, Dallas, TX 75275 USA.
[Ahsan, M.; Galyaev, E.; Izen, J. M.; Lou, X.; Reeves, K.; Wong, W. C.] Univ Texas Dallas, Dept Phys, Dallas, TX 75230 USA.
[Bechtle, P.; Kuutmann, E. Bergeaas; Boehler, M.; Dietrich, J.; Ehrenfeld, W.; Ferrara, V.; Fischer, G.; Glazov, A.; Goebel, M.; Fajardo, L. S. Gomez; Da Costa, J. Goncalves Pinto Firmino; Gosdzik, B.; Grahn, K-J.; Gregor, I. M.; Hiller, K. H.; Husemann, U.; Belenguer, M. Jimenez; Johnert, S.; Karnevskiy, M.; Katzy, J.; Kono, T.; Kuhl, T.; Lange, C.; Lobodzinska, E.; Ludwig, D.; Maettig, S.; Medinnis, M.; Mijovic, L.; Moenig, K.; Naumann, T.; Cavalcanti, T. Perez; Petschull, D.; Piec, S. M.; Placakyte, R.; Qin, Z.; Rubinskiy, I.; Sedov, G.; Tackmann, K.; Terwort, M.; Vankov, P.; Viti, M.; Wildt, M. A.; Zhu, H.] DESY, D-2000 Hamburg, Germany.
[Kuutmann, E. Bergeaas; Boehler, M.; Dietrich, J.; Fischer, G.; Glazov, A.; Goebel, M.; Fajardo, L. S. Gomez; Da Costa, J. Goncalves Pinto Firmino; Gosdzik, B.; Grahn, K-J.; Gregor, I. M.; Hiller, K. H.; Katzy, J.; Lange, C.; Lobodzinska, E.; Ludwig, D.; Mijovic, L.; Moenig, K.; Petschull, D.; Rubinskiy, I.; Sedov, G.; Tackmann, K.; Zhu, H.] DESY, Zeuthen, Germany.
[Bunse, M.; Goessling, C.; Hirsch, F.; Jung, C. A.; Klaiber-Lodewigs, J.; Klingenberg, R.; Reisinger, I.; Walbersloh, J.; Weber, J.; Wunstorf, R.] Tech Univ Dortmund, Inst Expt Phys 4, Dortmund, Germany.
[Friedrich, F.; Goepfert, T.; Kar, D.; Kobel, M.; Leonhardt, K.; Ludwig, A.; Mader, W. F.; Prudent, X.; Rudolph, C.; Schwierz, R.; Seifert, F.; Steinbach, P.; Straessner, A.; Vest, A.] Tech Univ Dresden, Inst Kern & Teilchenphy, D-01062 Dresden, Germany.
[Arce, A. T. H.; Benjamin, D. P.; Bocci, A.; Ebenstein, W. L.; Fowler, A. J.; Ko, B. R.; Kotwal, A.; Oh, S. H.; Wang, C.; Yamaoka, J.] Duke Univ, Dept Phys, Durham, NC 27706 USA.
[Bhimji, W.; Buckley, A. G.; Clark, P. J.; Harrington, R. D.; Martin, V. J.; O'Brien, B. J.; Wynne, B. M.] Univ Edinburgh, SUPA Sch Phys & Astron, Edinburgh, Midlothian, Scotland.
Fachhochschule Wiener Neustadt, Wiener Neustadt, Austria.
[Annovi, A.; Antonelli, M.; Bilokon, H.; Cerutti, F.; Curatolo, M.; Esposito, B.; Ferrer, M. L.; Gatti, C.; Laurelli, P.; Maccarrone, G.; Sansoni, A.; Testa, M.; Vilucchi, E.; Volpi, G.; Wen, M.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Abdelalim, A. A.; Alexandre, G.; Backes, M.; Barone, G.; Bell, P. J.; Bell, W. H.; Berglund, E.; Blondel, A.; Bucci, F.; Clark, A.; Dao, V.; Ferrere, D.; Gadomski, S.; Navarro, J. E. Garcia; Gaumer, O.; Gonzalez-Sevilla, S.; Goulette, M. P.; Hamilton, A.; Iacobucci, G.; Leger, A.; Lister, A.; Latour, B. Martin dit; Herrera, C. Mora; Nektarijevic, S.; Nessi, M.; Nikolics, K.; Pasztor, G.; Pohl, M.; Rosbach, K.; Rosselet, L.; Wu, X.] Univ Geneva, Sect Phys, Geneva, Switzerland.
[Barberis, D.; Beccherle, R.; Caso, C.; Coccaro, A.; Cornelissen, T.; Dameri, M.; Darbo, G.; Parodi, A. Ferretto; Gagliardi, G.; Gemme, C.; Morettini, P.; Olcese, M.; Osculati, B.; Parodi, F.; Rossi, L. P.; Schiavi, C.] Univ Genoa, Ist Nazl Fis Nucl, Sez Genova, Genoa, Italy.
[Barberis, D.; Caso, C.; Coccaro, A.; Cornelissen, T.; Dameri, M.; Parodi, A. Ferretto; Gagliardi, G.; Osculati, B.; Parodi, F.; Schiavi, C.] Univ Genoa, Dipartimento Fis, Genoa, Italy.
[Chikovani, L.; Tskhadadze, E. G.] Georgian Acad Sci, E Andronikashvili Inst Phys, GE-380060 Tbilisi, Rep of Georgia.
[Djobava, T.; Khubua, J.; Mchedlidze, G.; Mosidze, M.] Georgian Acad Sci, Inst High Energy Phys, GE-380060 Tbilisi, Rep of Georgia.
[Astvatsatourov, A.; Dueren, M.; Stenzel, H.] Univ Giessen, Inst Phys 2, D-6300 Giessen, Germany.
[Albrand, S.; Andrieux, M-L.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; Delsart, P. A.; Donini, J.; Hostachy, J-Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Martin, Ph.; Polci, F.; Stark, J.; Sun, X.; Trocme, B.; Weydert, C.] Univ Grenoble 1, Lab Phys Subatom & Cosmol, Grenoble, France.
[Albrand, S.; Andrieux, M-L.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; Delsart, P. A.; Donini, J.; Hostachy, J-Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Martin, Ph.; Polci, F.; Stark, J.; Sun, X.; Trocme, B.; Weydert, C.] CNRS, IN2P3, Grenoble, France.
[Albrand, S.; Andrieux, M-L.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; Delsart, P. A.; Donini, J.; Hostachy, J-Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Martin, Ph.; Polci, F.; Stark, J.; Sun, X.; Trocme, B.; Weydert, C.] Inst Natl Polytech Grenoble, F-38031 Grenoble, France.
[Addy, T. N.; Harvey, A.; McFarlane, K. W.; Shin, T.; Vassilakopoulos, V. I.] Hampton Univ, Dept Phys, Hampton, VA 23668 USA.
[da Costa, J. Barreiro Guimaraes; Belloni, A.; Brandenburg, G. W.; Franklin, M.; Hurst, P.; Huth, J.; Jeanty, L.; Kagan, M.; Mateos, D. Lopez; Outschoorn, V. Martinez; Mercurio, K. M.; Mills, C.; Moed, S.; Moeller, V.; Morii, M.; Prasad, S.; Skottowe, H. P.; Smith, B. C.; della Porta, G. Zevi] Harvard Univ, Lab Particle Phys & Cosmol, Cambridge, MA 02138 USA.
[Anders, G.; Andrei, V.; Childers, J. T.; Davygora, Y.; Dietzsch, T. A.; Geweniger, C.; Hanke, P.; Henke, M.; Khomich, A.; Kluge, E. -E.; Lendermann, V.; Meiera, K.; Mueller, F.; Poddar, S.; Scharf, V.; Schultz-Coulon, H. -C.; Stamen, R.; Wessels, M.] Heidelberg Univ, Kirchhoff Inst Phys, Heidelberg, Germany.
[Radescu, V.; Schaetzel, S.; Schmitt, S.; Schoning, A.] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany.
[Kugel, A.; Maenner, R.; Schroer, N.] Heidelberg Univ, ZITI Inst Tech Informat, D-6800 Mannheim, Germany.
[Ohsugi, T.] Hiroshima Univ, Fac Sci, Hiroshima 730, Japan.
[Nagasaka, Y.] Hiroshima Inst Technol, Fac Appl Informat Sci, Hiroshima, Japan.
[Brunet, S.; Cwetanski, P.; Evans, H.; Gagnon, P.; Jain, V.; Luehring, F.; Marino, C. P.; Ogren, H.; Penwell, J.; Price, D.; Rust, D. R.; Whittington, D.; Yang, Y.; Zieminska, D.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
[Jussel, P.; Kneringer, E.; Kuhn, D.; Rudolph, G.] Leopold Franzens Univ, Inst Astro & Teilchenphys, Innsbruck, Austria.
[Behera, P. K.; Limper, M.; Mallik, U.; Zaidan, R.] Univ Iowa, Iowa City, IA USA.
[Chen, C.; Cochran, J.; Dudziak, F.; Mete, A. S.; Meyer, W. T.; Nelson, A.; Prell, S.; Rosenberg, E. I.; Ruiz-Martinez, A.; Yamamoto, K.] Iowa State Univ, Dept Phys & Astron, Ames, IA USA.
[Aleksandrov, I. N.; Barashkou, A.; Bardin, D. Y.; Bednyakov, V. A.; Boyko, I. R.; Budagov, I. A.; Chelkov, G. A.; Cheplakov, A.; Chepurnov, V. F.; Chizhov, M. V.; Dedovich, D. V.; Demichev, M.; Glonti, G. L.; Gostkin, M. I.; Grigalashvili, N.; Gusakov, Y.; Huseynov, N.; Kalinovskaya, L. V.; Kazarinov, M. Y.; Kekelidze, G. D.; Kharchenko, D.; Khovanskiy, N.; Khramov, E.; Kolesnikov, V.; Kotov, V. M.; Kruchonak, U.; Krumshteyn, Z. V.; Kukhtin, V.; Ladygin, E.; Lazarev, A. B.; Manjavidze, I. D.; Minashvili, I. A.; Mineev, M.; Nikolaev, K.; Olchevski, A. G.; Peshekhonov, V. D.; Romanov, V. M.; Rumyantsev, L.; Rusakovich, N. A.; Sadykov, R.; Sisakyan, A. N.; Topilin, N. D.; Vinogradov, V. B.] JINR Dubna, Joint Inst Nucl Res, Dubna, Russia.
[Amako, K.; Arai, Y.; Doi, Y.; Haruyama, T.; Ikegami, Y.; Ikeno, M.; Iwasaki, H.; Kanzaki, J.; Kohriki, T.; Kondo, T.; Makida, Y.; Manabe, A.; Mitsui, S.; Nagano, K.; Nozaki, M.; Odaka, S.; Sasaki, O.; Sasaki, T.; Suzuki, Y.; Tanaka, S.; Terada, S.; Tojo, J.; Tokushuku, K.; Tsuno, S.; Unno, Y.; Yamada, M.; Yamamoto, A.; Yasu, Y.] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki, Japan.
[Akiyama, A.; Hayakawa, T.; Homma, Y.; Ichimiya, R.; Ishikawa, A.; Kawagoe, K.; King, M.; Kishimoto, T.; Kurashige, H.; Matsushita, T.; Miyazaki, K.; Nishiyama, T.; Ochi, A.; Okada, S.; Omachi, C.; Suita, K.; Suzuki, Y.; Takeda, H.; Tani, K.; Tokunaga, K.; Yamazaki, Y.] Kobe Univ, Grad Sch Sci, Kobe, Hyogo 657, Japan.
[Ishino, M.; Sasao, N.] Kyoto Univ, Fac Sci, Kyoto, Japan.
[Takashima, R.] Kyoto Univ, Kyoto 612, Japan.
[Anduaga, X. S.; Dova, M. T.; Monticelli, F.; Tripiana, M. F.] Consejo Nacl Invest Cient & Tecn, La Plata, Buenos Aires, Argentina.
[Anduaga, X. S.; Dova, M. T.; Monticelli, F.; Tripiana, M. F.] Univ Nacl La Plata, Inst Fis La Plata, La Plata, Buenos Aires, Argentina.
[Barton, A. E.; Borissov, G.; Bouhova-Thacker, E. V.; Brodbeck, T. J.; Catmore, J. R.; Chilingarov, A.; Davidson, R.; De Mora, L.; Fox, H.; Henderson, R. C. W.; Hughes, G.; Jones, R. W. L.; Kartvelishvili, V.; Long, R. E.; Love, P. A.; Ratoff, P. N.; Smizanska, M.; Walder, J.] Univ Lancaster, Dept Phys, Lancaster, England.
[Bianco, M.; Cataldi, G.; Chiodini, G.; Crupi, R.; Gorini, E.; Grancagnolo, F.; Perrino, R.; Primavera, M.; Spagnolo, S.; Ventura, A.] Univ Salento, Ist Nazl Fis Nucl, Sez Lecce, Lecce, Italy.
[Bianco, M.; Crupi, R.; Gorini, E.; Guida, A.; Spagnolo, S.; Ventura, A.] Univ Salento, Dipartimento Fis, Lecce, Italy.
[Allport, P. P.; Austin, N.; Burdin, S.; D'Onofrio, M.; Dervan, P.; Greenshaw, T.; Gwilliam, C. B.; Hayward, H. S.; Houlden, M. A.; Jackson, J. N.; Jones, T. J.; King, B. T.; Klein, M.; Klein, U.; Kluge, T.; Kretzschmar, J.; Laycock, P.; Maxfield, S. J.; Mehta, A.; Migas, S.; Prichard, P. M.; Sellers, G.; Vossebeld, J. H.; Waller, P.; Wrona, B.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 3BX, Merseyside, England.
[Cindro, V.; Deliyergiyev, M.; Dolenc, I.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.; Tykhonov, A.] Univ Ljubljana, Ljubljana, Slovenia.
[Cindro, V.; Deliyergiyev, M.; Dolenc, I.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.; Tykhonov, A.] Jozef Stefan Inst, Dept Phys, Ljubljana, Slovenia.
[Adragna, P.; Bona, M.; Carter, A. A.; Cerrito, L.; Eisenhandler, E.; Ellis, K.; Landon, M. P. J.; Lloyd, S. L.; Morin, J.; Morris, J. D.; Piccaro, E.; Poll, J.; Rizvi, E.; Salamanna, G.; Stevenson, K.; Castanheira, M. Teixeira Dias; Traynor, D.; Wiglesworth, C.] Queen Mary Univ London, Dept Phys, London, England.
[Alam, M. A.; Berry, T.; Boisvert, V.; Boorman, G.; Cooper-Smith, N. J.; Cowan, G.; Edwards, C. A.; George, S.; Goncalo, R.; Hayden, D.; Misiejuk, A.; Pastore, Fr.; Rose, M.; Spano, F.; Strong, J. A.; Teixeira-Dias, P.] Royal Holloway Univ London, Dept Phys, Surrey, England.
[Baker, S.; Bernat, P.; Bieniek, S. P.; Boeser, S.; Butterworth, J. M.; Campanelli, M.; Christidi, I. A.; Cooper, B. D.; Davison, A. R.; Dean, S.; Jansen, E.; Jones, T. W.; Konstantinidis, N.; Monk, J.; Nash, M.; Nurse, E.; Prabhu, R.; Richards, A.; Robinson, J. E. M.; Sherwood, P.; Simmons, B.; Taylor, C.; Waugh, B. M.; Wijeratne, P. A.] UCL, Dept Phys & Astron, London, England.
[Beau, T.; Bordoni, S.; Calderini, G.; Cavalleri, P.; Chareyre, E.; De Cecco, S.; Derue, F.; Imbault, D.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Trinh, T. N.; Vannucci, F.; Yuan, L.] UPMC, Lab Phys Nucl & Hautes Energies, Paris, France.
[Beau, T.; Bordoni, S.; Calderini, G.; Cavalleri, P.; Chareyre, E.; De Cecco, S.; Derue, F.; Imbault, D.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Trinh, T. N.; Vannucci, F.; Yuan, L.] Univ Paris Diderot, Paris, France.
[Beau, T.; Bordoni, S.; Calderini, G.; Cavalleri, P.; Chareyre, E.; De Cecco, S.; Derue, F.; Imbault, D.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Trinh, T. N.; Vannucci, F.; Yuan, L.] CNRS, IN2P3, Paris, France.
[Akesson, T. P. A.; Alonso, A.; Bocchetta, S. S.; Hedberg, V.; Jarlskog, G.; Lundberg, B.; Lytken, E.; Meirose, B.; Mjornmark, J. U.; Smirnova, O.] Lund Univ, Inst Fys, Lund, Sweden.
[Barreiro, F.; Cantero, J.; De la Torre, H.; Del Peso, J.; Glasman, C.; Labarga, L.; Lagouri, T.; Llorente Merino, J.; March, L.; Nebot, E.; Rodier, S.; Terron, J.] Univ Autonoma Madrid, Dept Fis Teor C 15, Madrid, Spain.
[Aharrouche, M.; Arik, E.; Arnaez, O.; Bendel, M.; Blum, W.; Buescher, V.; Eckweiler, S.; Edmonds, K.; Ellinghaus, F.; Ertel, E.; Fiedler, F.; Fleckner, J.; Goeringer, C.; Handel, C.; Hohlfeld, M.; Ji, W.; Kawamura, G.; Kleinknecht, K.; Koenig, S.; Koepke, L.; Lungwitz, M.; Masetti, L.; Meyer, C.; Moreno, D.; Neusiedl, A.; Rieke, S.; Sander, H. G.; Schaefer, U.; Schmitt, C.; Schroeder, C.; Tapprogge, S.; Anh, T. Vu] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany.
[Almond, J.; Brown, G.; Chavda, V.; Cox, B. E.; Da Via, C.; Duerdoth, I. P.; Forti, A.; Foster, J. M.; Howarth, J.; Hughes-Jones, R. E.; Ibbotson, M.; Jones, G.; Keates, J. R.; Kelly, M.; Kolya, S. D.; Lane, J. L.; Loebinger, F. K.; Marshall, R.; Martyniuk, A. C.; Marx, M.; Masik, J.; Oh, A.; Owen, M.; Pater, J. R.; Pilkington, A. D.; Schwanenberger, C.; Snow, S. W.; Watts, S.; Yang, U. K.] Univ Manchester, Sch Phys & Astron, Manchester, Lancs, England.
[Aoun, S.; Arfaoui, S.; Bee, C. P.; Benchouk, C.; Bernardet, K.; Bousson, N.; Clemens, J. C.; Coadou, Y.; Delpierre, P.; Djama, F.; Etienne, F.; Feligioni, L.; Henry-Couannier, F.; Hoffmann, D.; Hubaut, F.; Knoops, E. B. F. G.; Le Guirriec, E.; Li, B.; Li, S.; Monnier, E.; Odier, J.; Petit, E.; Pralavorio, P.; Qian, Z.; Rozanov, A.; Talby, M.; Tannoury, N.; Tisserant, S.; Toth, J.; Touchard, F.; Vacavant, L.] Aix Marseille Univ, CPPM, Marseille, France.
[Aoun, S.; Arfaoui, S.; Bee, C. P.; Benchouk, C.; Bernardet, K.; Bousson, N.; Clemens, J. C.; Coadou, Y.; Delpierre, P.; Djama, F.; Etienne, F.; Feligioni, L.; Henry-Couannier, F.; Hoffmann, D.; Hubaut, F.; Knoops, E. B. F. G.; Le Guirriec, E.; Li, B.; Li, S.; Monnier, E.; Odier, J.; Petit, E.; Pralavorio, P.; Qian, Z.; Rozanov, A.; Talby, M.; Tannoury, N.; Tisserant, S.; Toth, J.; Touchard, F.; Vacavant, L.] CNRS, IN2P3, Marseille, France.
[Brau, B.; Colon, G.; Dallapiccola, C.; Meade, A.; Moyse, E. J. W.; Pueschel, E.; Thompson, E. N.; van Eldik, N.; Willocq, S.; Woudstra, M. J.] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA.
[Belanger-Champagne, C.; Chapleau, B.; Cheatham, S.; Corriveau, F.; Dobbs, M.; Dufour, M-A.; Guler, H.; Klemetti, M.; Robertson, S. H.; Rios, C. Santamarina; Schram, M.; Vachon, B.; Warburton, A.] McGill Univ, Dept Phys, Montreal, PQ, Canada.
[Barberio, E. L.; Davey, W.; Davidson, N.; Felzmann, C. U.; Kubota, T.; Limosani, A.; Moorhead, G. F.; Hanninger, G. Nunes; Phan, A.; Sevior, M. E.; Shao, Q. T.; Taylor, G. N.; Volpi, M.; White, M. J.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia.
[Armbruster, A. J.; Borroni, S.; Chapman, J. W.; Cirilli, M.; Dai, T.; Diehl, E. B.; Eppig, A.; Ferretti, C.; Goldfarb, S.; Harper, D.; Levin, D.; Li, X.; Liu, H.; Liu, J. B.; Mc Kee, S. P.; Neal, H. A.; Panikashvili, N.; Purdham, J.; Qian, J.; Scheirich, D.; Thun, R. P.; Walch, S.; Wilson, A.; Wooden, G.; Wu, Y.; Yang, H.; Zhou, B.; Zhu, J.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA.
[Abolins, M.; Arabidze, G.; Brock, R.; Bromberg, C.; Caughron, S.; Di Mattia, A.; Fedorko, W.; Hauser, R.; Heim, S.; Holzbauer, J. L.; Huston, J.; Koll, J.; Kraus, J.; Linnemann, J. T.; Mangeard, P. S.; Martin, B.; Miller, R. J.; Pope, B. G.; Ryan, P.; Schwienhorst, R.; Stelzer, H. J.; Tollefson, K.; Zhang, H.] Michigan State Univ, Dept Phys, E Lansing, MI 48824 USA.
[Acerbia, E.; Alessandria, F.; Alimonti, G.; Andreazza, A.; Baccaglioni, G.; Battistoni, G.; Besana, M. I.; Broggi, F.; Carminati, L.; Cavalli, D.; Costa, G.; Dell'Asta, L.; Fanti, M.; Favareto, A.; Giugni, D.; Koletsou, I.; Lari, T.; Mandelli, L.; Mazzanti, M.; Meroni, C.; Montesano, S.; Perini, L.; Pizio, C.; Ragusa, F.; Resconi, S.; Rivoltella, G.; Rossi, L.; Sorbi, M.; Tartarelli, G. F.; Troncon, C.; Turra, R.; Vegni, G.; Volpini, G.] Univ Milan, Ist Nazl Fis Nucl, Sez Milano, Milan, Italy.
[Acerbia, E.; Andreazza, A.; Besana, M. I.; Carminati, L.; Dell'Asta, L.; Fanti, M.; Favareto, A.; Montesano, S.; Perini, L.; Pizio, C.; Ragusa, F.; Rivoltella, G.; Rossi, L.; Sorbi, M.; Turra, R.; Vegni, G.] Univ Milan, Dipartimento Fis, Milan, Italy.
[Bogouch, A.; Harkusha, S.; Kulchitsky, Y.; Kurochkin, Y. A.; Satsounkevitch, I.; Tsiareshka, P. V.] Natl Acad Sci Belarus, BI Stepanov Inst Phys, Minsk, Byelarus.
[Gilewsky, V.; Kuzhir, P.; Rumiantsev, V.; Starovoitov, P.; Yanush, S.] Natl Sci & Educ Ctr Particle & High Energy Phys, Minsk, Byelarus.
[Taylor, F. E.] MIT, Dept Phys, Cambridge, MA 02139 USA.
[Azuelos, G.; Banerjee, P.; Bouchami, J.; Davies, M.; Ferland, J.; Giunta, M.; Guler, H.; Gutierrez, A.; Lebel, C.; Leroy, C.; Goia, J. A. Macana; Martin, J. P.; Mehdiyev, R.; Scallon, O.] Univ Montreal, Grp Particle Phys, Montreal, PQ, Canada.
[Akimov, A. V.; Baranov, S. P.; Gavrilenko, I. L.; Komar, A. A.; Mashinistov, R.; Mouraviev, S. V.; Nechaeva, P. Yu.; Shmeleva, A.; Snesarev, A. A.; Sulin, V. V.; Tikhomirov, V. O.] Acad Sci, PN Lebedev Phys Inst, Moscow, Russia.
[Artamonov, A.; Gorbounov, P. A.; Khovanskiy, V.; Shatalov, P. B.; Tsukerman, I. I.] Inst Theoret & Expt Phys ITEP, Moscow, Russia.
[Antonov, A.; Belotskiy, K.; Bondarenko, V. G.; Bulekov, O.; Dolgoshein, B. A.; Kantserov, V. A.; Khodinov, A.; Morozov, S. V.; Romaniouk, A.; Smirnov, S. Yu.; Soldatov, E.] Moscow Engn & Phys Inst MEPhI, Moscow, Russia.
[Gladilin, L. K.; Grishkevich, Y. V.; Kramarenko, V. A.; Rud, V. I.; Sivoklokov, S. Yu.; Smirnova, L. N.] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia.
[Adomeit, S.; Biebel, O.; Calfayan, P.; de Graat, J.; Duckeck, G.; Ebke, J.; Elmsheuser, J.; Engl, A.; Galea, C.; Genest, M. H.; Hertenberger, R.; Kennedy, J.; Kummer, C.; Legger, F.; Lichtnecker, M.; Mameghani, R.; Mueller, T. A.; Nunnemann, T.; Rauscher, F.; Reznicek, P.; Ruckert, B.; Sanders, M. P.; Schaile, D.; Schieck, J.; Serfon, C.; Staude, A.; Vladoiu, D.; Walker, R.; Will, J. Z.; Zhuang, X.] Univ Munich, Fak Phys, Munich, Germany.
[Aderholz, M.; Barillari, T.; Beimforde, M.; Bethke, S.; Capriotti, D.; Cortiana, G.; Dannheim, D.; Dubbert, J.; Ehrich, T.; Flowerdew, M. J.; Giovannini, P.; Goettfert; Groh, M.; Haefner, P.; Hauff, D.; Jantsch, A.; Kaiser, S.; Kiryunin, A. E.; Kluth, S.; Kortner, O.; Kortner, S.; Kotov, S.; Kroha, H.; Lutz, G.; Macchiolo, A.; Manz, A.; Menke, S.; Mohrdieck-Moeck, S.; Moser, H. G.; Nisius, R.; Oberlack, H.; Pospelov, G. E.; Potrap, I. N.; Rauter, E.; Richter, R.; Salihagic, D.; Sandstroem, R.; Schacht, P.; Seuster, R.; Stonjek, S.; von der Schmitt, H.; von Loeben, J.; Weigell, P.; Zhuravlov, V.] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, D-80805 Munich, Germany.
[Shimojima, M.; Tanaka, Y.] Nagasaki Inst Appl Sci, Nagasaki, Japan.
[Hasegawa, S.; Morvaj, L.; Ohshima, T.; Okumura, Y.; Shichi, H.; Sugimoto, T.; Takahashi, Y.; Tomoto, M.; Wakabayashi, J.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648601, Japan.
[Aloisio, A.; Alviggi, M. G.; Canale, V.; Capasso, L.; Carlino, G.; Cevenini, F.; Chiefari, G.; Conventi, F.; de Asmundis, R.; Della Pietra, M.; Della Volpe, D.; Doria, A.; Giordano, R.; Iengo, P.; Izzo, V.; Merola, L.; Musto, E.; Patricelli, S.; Sanchez, A.; Sekhniaidze, G.] Univ Naples Federico II, Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy.
[Aloisio, A.; Alviggi, M. G.; Canale, V.; Capasso, L.; Cevenini, F.; Chiefari, G.; Della Volpe, D.; Giordano, R.; Iengo, P.; Merola, L.; Musto, E.; Patricelli, S.; Sanchez, A.] Univ Naples Federico II, Dipartimento Sci Fis, Naples, Italy.
[Gorelov, I.; Hoeferkamp, M. R.; Metcalfe, J.; Seidel, S. C.; Toms, K.; Wang, R.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Chelstowska, M. A.; Consonni, M.; De Groot, N.; Filthaut, F.; Klok, P. F.; Konig, A. C.; Koetsveld, F.; Raas, M.; Salvucci, A.; Timmermans, C. J. W. P.] Radboud Univ Nijmegen, Inst Math Astrophys & Particle Phys, NL-6525 ED Nijmegen, Netherlands.
[Bentvelsen, S.; Bobbink, G. J.; Bos, K.; Boterenbrood, H.; Colijn, A. P.; Daum, C.; de Jong, P.; De Nooij, L.; Doxiadis, A. D.; Ferrari, P.; Garitaonandia, H.; Geerts, D. A. A.; Gorini, B.; Gosselink, M.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Kayl, M. S.; Klous, S.; Kluit, P.; Koffeman, E.; Koutsman, A.; Lee, H.; Lenz, T.; Linde, F.; Luijckx, G.; Massaro, G.; Mechnich, J.; Mussche, I.; Ottersbach, J. P.; Reichold, A.; Rijpstra, M.; Ruckstuhl, N.; Snuverink, J.; Ta, D.; Tsiakiris, M.; Turlay, E.; van der Graaf, H.; van der Kraaij, E.; Van Der Leeuw, R.; van der Poel, E.; van Kesteren, Z.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Milosavljevic, M. Vranjes; Vreeswijk, M.] Univ Amsterdam, Amsterdam, Netherlands.
[Bentvelsen, S.; Bobbink, G. J.; Bos, K.; Boterenbrood, H.; Colijn, A. P.; Daum, C.; de Jong, P.; De Nooij, L.; Doxiadis, A. D.; Ferrari, P.; Garitaonandia, H.; Geerts, D. A. A.; Gorini, B.; Gosselink, M.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Kayl, M. S.; Klous, S.; Kluit, P.; Koffeman, E.; Koutsman, A.; Lee, H.; Lenz, T.; Linde, F.; Luijckx, G.; Massaro, G.; Mechnich, J.; Mussche, I.; Ottersbach, J. P.; Reichold, A.; Rijpstra, M.; Ruckstuhl, N.; Snuverink, J.; Ta, D.; Tsiakiris, M.; Turlay, E.; van der Graaf, H.; van der Kraaij, E.; Van Der Leeuw, R.; van der Poel, E.; van Kesteren, Z.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Milosavljevic, M. Vranjes; Vreeswijk, M.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
[Calkins, R.; Chakraborty, D.; de Lima, J. G. Rocha; Suhr, C.; Zutshi, V.] No Illinois Univ, Dept Phys, De Kalb, IL USA.
[Beloborodova, O.; Bobrovnikov, V. B.; Bogdanchikov, A.; Kazanin, V. A.; Kolachev, G. M.; Korol, A.; Malyshev, V.; Maslennikov, A. L.; Maximov, D. A.; Orlov, I.; Peleganchuk, S. V.; Schamov, A. G.; Skovpen, K.; Soukharev, A.; Talyshev, A.; Tikhonov, Y. A.; Zaytsev, A.] Budker Inst Nucl Phys BINP, Novosibirsk, Russia.
[Budick, B.; Casadei, D.; Cranmer, K.; van Huysduynen, L. Hooft; Konoplich, R.; Krasznahorkay, A.; Lewis, G. H.; Mincer, A. I.; Nemethy, P.; Neves, R. M.; Prokofiev, K.; Shibata, A.; Zhao, L.] NYU, Dept Phys, New York, NY 10003 USA.
[Fernando, W.; Fisher, M. J.; Gan, K. K.; Kagan, H.; Kass, R. D.; Moss, J.; Rahimi, A. M.; Strang, M.] Ohio State Univ, Columbus, OH 43210 USA.
[Nakano, I.] Okayama Univ, Fac Sci, Okayama 700, Japan.
[Abbott, B.; Gutierrez, P.; Huang, G. S.; Jana, D. K.; Marzin, A.; Meera-Lebbai, R.; Saleem, M.; Severini, H.; Skubic, P.; Snow, J.; Strauss, M.] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA.
[Abi, B.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA.
[Hamal, P.; Kocnar, A.; Nozka, L.] Palacky Univ, RCPTM, CR-77147 Olomouc, Czech Republic.
[Brau, J. E.; Potter, C. T.; Ptacek, E.; Reinsch, A.; Robinson, M.; Searcy, J.; Shamim, M.; Sinev, N. B.; Strom, D. M.; Torrence, E.] Univ Oregon, Ctr High Energy Phys, Eugene, OR 97403 USA.
[Abreu, H.; Andari, N.; Arnault, C.; Auge, E.; Barrillon, P.; Benoit, M.; Binet, S.; Blanchard, J. -B.; Bourdarios, C.; Breton, D.; Collard, C.; De La Taille, C.; De Regie, J. B. De Vivie; Duflot, L.; Escalier, M.; Fayard, L.; Fournier, D.; Grivaz, J. -F.; Heller, M.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Idarraga, J.; Kado, M.; Lounis, A.; Makovec, N.; Matricon, P.; Niedercorn, F.; Poggioli, L.; Puzo, P.; Renaud, A.; Rousseau, D.; Ruan, X.; Rybkin, G.; Sauvan, J. B.; Schaarschmidt, J.; Schaffer, A. C.; Serin, L.; Simion, S.; Tanaka, R.; Teinturier, M.; Veillet, J. J.; Vukotic, I.; Wicek, F.; Zerwas, D.; Zhang, Z.] Univ Paris 11, LAL, Orsay, France.
[Abreu, H.; Andari, N.; Arnault, C.; Auge, E.; Barrillon, P.; Benoit, M.; Binet, S.; Blanchard, J. -B.; Bourdarios, C.; Breton, D.; Collard, C.; De La Taille, C.; De Regie, J. B. De Vivie; Duflot, L.; Escalier, M.; Fayard, L.; Fournier, D.; Grivaz, J. -F.; Heller, M.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Idarraga, J.; Kado, M.; Lounis, A.; Makovec, N.; Matricon, P.; Niedercorn, F.; Poggioli, L.; Puzo, P.; Renaud, A.; Rousseau, D.; Ruan, X.; Rybkin, G.; Sauvan, J. B.; Schaarschmidt, J.; Schaffer, A. C.; Serin, L.; Simion, S.; Tanaka, R.; Teinturier, M.; Veillet, J. J.; Vukotic, I.; Wicek, F.; Zerwas, D.; Zhang, Z.] CNRS, IN2P3, F-91405 Orsay, France.
[Hanagaki, K.; Hirose, M.; Meguro, T.; Nomachi, M.; Sugaya, Y.] Osaka Univ, Grad Sch Sci, Osaka, Japan.
[Bugge, L.; Buran, T.; Cameron, D.; Gjelsten, B. K.; Lund, E.; Ould-Saada, F.; Pajchel, K.; Pylypchenko, Y.; Read, A. L.; Rohne, O.; Samset, B. H.; Stapnes, S.; Strandlie, A.] Univ Oslo, Dept Phys, Oslo, Norway.
[Abdesselam, A.; Apolle, R.; Barr, A. J.; Beauchemin, P. H.; Boddy, C. R.; Buchanan, J.; Buckingham, R. M.; Buira-Clark, D.; Coe, P.; Coniavitis, E.; Cooper-Sarkar, A. M.; Davies, E.; Dehchar, M.; Doglioni, C.; Farrington, S. M.; Gallas, E. J.; Gilbert, L. M.; Gwenlan, C.; Hawes, B. M.; Horton, K.; Howell, D. F.; Huffman, T. B.; Issever, C.; Karagoz, M.; King, R. S. B.; Korn, A.; Kundu, N.; Larner, A.; Lewis, A.; Liang, Z.; Livermore, S. S. A.; Loken, J.; Mattravers, C.; Mermod, P.; Nickerson, R. B.; Pinder, A.; Robichaud-Veronneau, A.; Ryder, N. C.; Short, D.; Tseng, J. C-L.; Vickey, T.; Viehhauser, G. H. A.; Weidberg, A. R.; Whitehead, S. R.] Univ Oxford, Dept Phys, Oxford, England.
[Cambiaghi, M.; Conta, C.; Franchino, S.; Fraternali, M.; Gaudio, G.; Livan, M.; Negri, A.; Polesello, G.; Rebuzzi, D. M.; Rimoldi, A.; Uslenghi, M.; Vercesi, V.] Univ Pavia, Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy.
[Cambiaghi, M.; Conta, C.; Franchino, S.; Fraternali, M.; Livan, M.; Negri, A.; Rebuzzi, D. M.; Rimoldi, A.; Uslenghi, M.] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy.
[Alison, J.; Degenhardt, J.; Donega, M.; Dressnandt, N.; Fratina, S.; Hance, M.; Hines, E.; Hong, T. M.; Jackson, B.; Kroll, J.; Kunkle, J.; LeGeyt, B. C.; Lipeles, E.; Martin, F. F.; Olivito, D.; Ospanov, R.; Reece, R.; Stahlman, J.; Thomson, E.; Wagner, P.; Williams, H. H.] Univ Penn, Dept Phys, Philadelphia, PA 19104 USA.
[Fedin, O. L.; Gratchev, V.; Grebenyuk, O. G.; Maleev, V. P.; Nesterov, S. Y.; Ryabov, Y. F.; Schegelsky, V. A.; Sedykh, E.; Seliverstov, D. M.; Zalite, Yo. K.] Petersburg Nucl Phys Inst, Gatchina, Russia.
[Bertolucci, F.; Cascella, M.; Cavasinni, V.; Crescioli, F.; Del Prete, T.; Dotti, A.; Francavilla, P.; Giangiobbe, V.; Lupi, A.; Mazzoni, E.; Roda, C.; Sarri, F.; Zenonos, Z.] Univ Pisa, Ist Nazl Fis Nucl, Sez Pisa, I-56100 Pisa, Italy.
[Bertolucci, F.; Cascella, M.; Cavasinni, V.; Crescioli, F.; Del Prete, T.; Dotti, A.; Francavilla, P.; Giangiobbe, V.; Lupi, A.; Mazzoni, E.; Roda, C.; Sarri, F.; Zenonos, Z.] Univ Pisa, Dipartimento Fis E Fermi, Pisa, Italy.
[Boudreau, J.; Cleland, W.; Escobar, C.; Kittelmann, T.; Mueller, J.; Paolone, V.; Prieur, D.; Savinov, V.; Wendler, S.; Yoosoofmiya, R.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
[Amorim, A.; Anjos, N.; Carvalho, J.; Castro, N. F.; Muino, P. Conde; Wemans, A. Do Valle; Fiolhais, M. C. N.; Gomes, A.; Jorge, P. M.; Lopes, L.; Machado Miguens, J.; Maio, A.; Maneira, J.; Oliveira, M.; Onofre, A.; Palma, A.; Pina, J.; Pinto, B.; Santos, H.; Saraiva, J. G.; Silva, J.; Soares, M.; Veloso, F.; Wolters, H.] Lab Instrumentacao & Fis Expt Particulas LIP, Lisbon, Portugal.
[Aguilar-Saavedra, J. A.] Univ Granada, Dept Fis Teor & Cosmos, Granada, Spain.
[Aguilar-Saavedra, J. A.] Univ Granada, CAFPE, Granada, Spain.
[Chudoba, J.; Gallus, P.; Gunther, J.; Hruska, I.; Juranek, V.; Kepka, O.; Kupco, A.; Kus, V.; Lipinsky, L.; Lokajicek, M.; Marcisovsky, M.; Mikestikova, M.; Myska, M.; Nemecek, S.; Panuskova, M.; Ruzicka, P.; Schovancova, J.; Sicho, P.; Staroba, P.; Svatos, M.; Tasevsky, M.; Tic, T.; Vacek, V.; Valenta, J.; Vrba, V.; Zeman, M.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
[Augsten, K.; Holy, T.; Horazdovsky, T.; Hubacek, Z.; Jakubek, J.; Kohout, Z.; Kral, V.; Krejci, F.; Pospisil, S.; Simak, V.; Slavicek, T.; Smolek, K.; Solar, M.; Solc, J.; Sopko, V.; Sopko, B.; Stekl, I.; Turecek, D.; Vlasak, M.; Vokac, P.] Czech Tech Univ, CR-16635 Prague, Czech Republic.
[Borisov, A.; Minaenko, A. A.; Solodkov, A. A.] State Res Ctr Inst High Energy Phys, Protvino, Russia.
[Adye, T.; Apolle, R.; Baines, J. T.; Barnett, B. M.; Botterill, D.; Burke, S.; Clifft, R. W.; Davies, E.; Dewhurst, A.; Emeliyanov, D.; Fisher, S. M.; Gallop, B. J.; Gee, C. N. P.; Gillman, A. R.; Greenfield, D.; Haywood, S. J.; Kirk, J.; Mattravers, C.; McCubbin, N. A.; McMahon, S. J.; Middleton, R. P.; Murray, W. J.; Nash, M.; Norton, P. R.; Phillips, P. W.; Sankey, D. P. C.; Scott, W. G.; Strube, J.; Tyndel, M.; Weber, M.; Wickens, F. J.; Wielers, M.] Rutherford Appleton Lab, Inst Particle Phys, Didcot OX11 0QX, Oxon, England.
[Davidek, T.; Dolejsi, J.; Dolezal, Z.; Drasal, Z.; Kodys, P.; Leitner, R.; Novakova, J.; Rybar, M.; Spousta, M.; Strachota, P.; Suk, M.; Sykora, T.; Tas, P.; Valkar, S.; Vorobel, V.; Wilhelm, I.] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic.
[Benslama, K.; Ming, Y.; Smit, G. V. Ybeles] Univ Regina, Dept Phys, Regina, SK S4S 0A2, Canada.
[Tanaka, S.] Ritsumeikan Univ, Kusatsu, Shiga, Japan.
[Anulli, F.; Artoni, G.; Bagnaia, P.; Bini, C.; Caloi, R.; Ciapetti, G.; D'Orazio, A.; De Pedis, D.; De Salvo, A.; Dionisi, C.; Falciano, S.; Gentile, S.; Giagu, S.; Lacava, F.; Lo Sterzo, F.; Luci, C.; Luminari, L.; Maiani, C.; Marzano, F.; Mastrandrea, P.; Mirabelli, G.; Nisati, A.; Pasqualucci, E.; Petrolo, E.; Pontecorvo, L.; Rescigno, M.; Rosati, S.; Rossi, E.; Tehrani, F. Safai; Sidoti, A.; Camillocci, E. Solfaroli; Spila, F.; Valente, P.; Vari, R.; Veneziano, S.; Zanello, L.] Univ Roma La Sapienza, Ist Nazl Fis Nucl, Sez Roma 1, Rome, Italy.
[Artoni, G.; Bagnaia, P.; Bini, C.; Caloi, R.; Ciapetti, G.; D'Orazio, A.; Dionisi, C.; Gentile, S.; Giagu, S.; Lacava, F.; Lo Sterzo, F.; Luci, C.; Maiani, C.; Mastrandrea, P.; Rosati, S.; Rossi, E.; Tehrani, F. Safai; Sidoti, A.; Camillocci, E. Solfaroli; Spila, F.; Zanello, L.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[Aielli, G.; Camarri, P.; Cardarelli, R.; Cattani, G.; Di Ciaccio, A.; Di Nardo, R.; Di Simone, A.; Liberti, B.; Marchese, F.; Salamon, A.; Santonico, R.] Univ Roma Tor Vergata, Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy.
[Aielli, G.; Camarri, P.; Cattani, G.; Di Ciaccio, A.; Di Nardo, R.; Di Simone, A.; Marchese, F.; Santonico, R.] Univ Roma Tor Vergata, Dipartimento Fis, I-00173 Rome, Italy.
[Bacci, C.; Baroncelli, A.; Biglietti, M.; Branchini, P.; Ceradini, F.; Di Luise, S.; Farilla, A.; Graziani, E.; Iodice, M.; Orestano, D.; Passeri, A.; Pastore, F.; Petrucci, F.; Ruggieri, F.; Spiriti, E.; Stanescu, C.] Univ Roma Tre, Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy.
[Bacci, C.; Biglietti, M.; Ceradini, F.; Di Luise, S.; Orestano, D.; Pastore, F.; Petrucci, F.; Ruggieri, F.] Univ Roma Tre, Dipartimento Fis, Rome, Italy.
[Benchekroun, D.; Chafaq, A.; Gouighri, M.; Hoummada, A.; Lablak, S.] Univ Hassan 2, Reseau Univ Phys Hautes Energies, Fac Sci Ain Chock, Casablanca, Morocco.
[Ghazlane, H.] Ctr Natl Energie Sci Tech Nucl, Rabat, Morocco.
[Cherkaoui El Moursli, R.; El Kacimi, M.; Goujdami, D.] Univ Cadi Ayyad, Dept Phys, Fac Sci Semlalia, Marrakech 40000, Morocco.
[Derkaoui, J. E.; Ouchrif, M.; Tayalati, Y.] LPTPM, Oujda, Morocco.
[Derkaoui, J. E.; Ouchrif, M.; Tayalati, Y.] Univ Mohamed Premier, Fac Sci, Oujda, Morocco.
Univ Mohammed 5, Fac Sci, Rabat, Morocco.
[Bachacou, H.; Bauer, F.; Besson, N.; Bolnet, N. M.; Boonekamp, M.; Chevalier, L.; Ernwein, J.; Etienvre, A. I.; Formica, A.; Gauthier, L.; Giraud, P. F.; Guyot, C.; Hassani, S.; Kozanecki, W.; Lancon, E.; Laporte, J. F.; Le Menedeu, E.; Legendre, M.; Mansoulie, B.; Meyer, J-P.; Morange, N.; Mountricha, E.; Hong, V. Nguyen Thi; Nicolaidou, R.; Ouraou, A.; Pomarede, D. M.; Resende, B.; Royon, C. R.; Schune, Ph.; Schwindling, J.; Simard, O.; Virchaux, M.; Xu, C.; Yu, J.] CEA Saclay Commissariat Energie Atom, DSM IRFU Inst Rech Lois Fondament Univ, Gif Sur Yvette, France.
[Bangert, A.; Chouridou, S.; Damiani, D. S.; Dubbs, T.; Fowler, K.; Grillo, A. A.; Hare, G. A.; Litke, A. M.; Lockman, W. S.; Manning, P. M.; Mitrevski, J.; Nielsen, J.; Sadrozinski, H. F-W.; Schumm, B. A.; Seiden, A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Forbush, D. A.; Goussiou, A. G.; Griffiths, J.; Harris, O. M.; Lubatti, H. J.; Mockett, P.; Policicchio, A.; Rothberg, J.; Ventura, D.; Verducci, M.; Wang, J. C.; Watts, G.; Zhao, T.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Booth, C. N.; Costanzo, D.; Donszelmann, T. Cuhadar; Dawson, I.; Duxfield, R.; Hodgkinson, M. C.; Hodgson, P.; Johansson, P.; Korolkova, E. V.; Mayne, A.; Mcfayden, J. A.; Miyagawa, P. S.; Nicolas, L.; Owen, S.; Paganis, E.; Suruliz, K.; Tovey, D. R.; Tua, A.; Xu, D.] Univ Sheffield, Dept Phys & Astron, Sheffield, S Yorkshire, England.
[Hasegawa, Y.; Ohshita, H.; Takeshita, T.] Shinshu Univ, Dept Phys, Nagano, Japan.
[Buchholz, P.; Czirr, H.; Fleck, I.; Gaur, B.; Grybel, K.; Holder, M.; Ibragimov, I.; Rammes, M.; Rosenthal, O.; Sipica, V.; Stahl, T.; Walkowiak, W.; Ziolkowski, M.] Univ Siegen, Fachbereich Phys, D-5900 Siegen, Germany.
[Dawe, E.; Godfrey, J.; O'Neil, D. C.; Petteni, M.; Stelzer, B.; Trottier-McDonald, M.; Vetterli, M. C.] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada.
[Aracena, I.; Barklow, T.; Bartoldus, R.; Bawa, H. S.; Butler, B.; Cogan, J. G.; Gao, Y. S.; Grenier, P.; Haas, A.; Hansson, P.; Horn, C.; Jackson, P.; Kenney, J.; Kim, P. C.; Kocian, M.; Koi, T.; Lowe, A. J.; Malone, C.; Mount, R.; Nelson, S.; Nelson, T. K.; Salnikov, A.; Schwartzman, A.; Silverstein, D.; Smith, D.; Strauss, E.; Su, D.; Wilson, M. G.; Wittgen, M.; Young, C.] Fermilab Natl Accelerator Lab, SLAC, Stanford, CA USA.
[Batkova, L.; Blazek, T.; Federic, P.; Pecsy, M.; Stavina, P.; Sykora, I.; Tokar, S.; Zenis, T.] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia.
[Antos, J.; Bruncko, D.; Ferencei, J.; Kladiva, E.] Slovak Acad Sci, Inst Expt Phys, Dept Subnucl Phys, Kosice 04353, Slovakia.
[Aurousseau, M.] Univ Johannesburg, Dept Phys, Johannesburg, South Africa.
[Leney, K. J. C.; Vickey, T.; Yacoob, S.] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa.
[Asman, B.; Bohm, C.; Clement, C.; Eriksson, D.; Gellerstedt, K.; Hellman, S.; Hidvegia, A.; Holmgren, S. O.; Johansen, M.; Johansson, K. E.; Jon-Anda, K.; Lesser, J.; Lundberg, J.; Milstead, D. A.; Moa, T.; Nordkvist, B.; Ohm, C. C.; Papadelis, A.; Ramstedt, M.; Sellden, B.; Silverstein, S. B.; Sjolin, J.; Strandberg, S.; Tylmad, M.; Boeriu, O. E. Vickey; Yang, Z.] Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
[Asman, B.; Clement, C.; Gellerstedt, K.; Jon-Anda, K.; Lundberg, J.; Milstead, D. A.; Moa, T.; Nordkvist, B.; Ohm, C. C.; Ramstedt, M.; Strandberg, S.; Tylmad, M.; Boeriu, O. E. Vickey; Yang, Z.] Oskar Klein Ctr, Stockholm, Sweden.
[Ahmad, A.; Caputo, R.; Deluca, C.; Devetak, E.; DeWilde, B.; Engelmann, R.; Farley, J.; Goodson, J. J.; Grassi, V.; Gray, J. A.; Hobbs, J.; Jia, J.; McCarthy, R. L.; Mohapatra, S.; Rijssenbeek, M.; Schamberger, R. D.; Stupak, J.; Yurkewicz, A.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
[Lund-Jensen, B.; Strandberg, J.] Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden.
[Bartsch, V.; De Santo, A.; Martin-Haugh, S.; Potter, C. J.; Rose, A.; Salvatore, F.; Sutton, M. R.] Univ Sussex, Dept Phys & Astron, Brighton, E Sussex, England.
[Lee, J. S. H.; Patel, N.; Saavedra, A. F.; Varvell, K. E.; Waugh, A. T.; Yabsley, B.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia.
[Chu, M. L.; Hou, S.; Lee, S. C.; Lin, S. C.; Liu, D.; Mazini, R.; Meng, Z.; Ren, Z. L.; Soh, D. A.; Teng, P. K.; Wang, H.; Wang, J.; Wang, S. M.; Weng, Z.; Zhang, D.; Zhong, J.; Zhou, Y.] Acad Sinica, Inst Phys, Taipei, Taiwan.
[Harpaz, S. Behar; Ben Ami, S.; Bressler, S.; Hershenhorn, A. D.; Kajomovitz, E.; Landsman, H.; Lifshitz, R.; Rozen, Y.; Tarem, S.; Vallecorsa, S.] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel.
[Abramowicz, H.; Alexander, G.; Amram, N.; Bella, G.; Benary, O.; Benhammou, Y.; Brodet, E.; Etzion, E.; Gershon, A.; Ginzburg, J.; Guttman, N.; Hod, N.; Kreisel, A.; Mahalalel, Y.; Munwes, Y.; Oren, Y.; Reinherz-Aronis, E.; Sadeh, I.; Silver, Y.; Soffer, A.; Taiblum, N.; Urkovsky, E.] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
[Iliadis, D.; Kordas, K.; Kouskoura, V.; Nomidis, I.; Petridis, A.; Petridou, C.; Sampsonidis, D.] Aristotle Univ Thessaloniki, Dept Phys, GR-54006 Thessaloniki, Greece.
[Akimoto, G.; Asai, S.; Azuma, Y.; Dohmae, T.; Imori, M.; Kanaya, N.; Kataoka, Y.; Kawamoto, T.; Kessoku, K.; Kobayashi, T.; Komori, Y.; Mashimo, T.; Masubuchi, T.; Matsumoto, H.; Matsunaga, H.; Nakamura, K.; Nakamura, T.; Ninomiya, Y.; Oda, S.; Okuyama, T.; Sakamoto, H.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamaguchi, H.; Yamamoto, S.; Yamamura, T.; Yamanaka, T.; Yamazaki, T.] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo, Japan.
[Akimoto, G.; Asai, S.; Azuma, Y.; Dohmae, T.; Imori, M.; Kanaya, N.; Kataoka, Y.; Kawamoto, T.; Kessoku, K.; Kobayashi, T.; Komori, Y.; Mashimo, T.; Masubuchi, T.; Matsumoto, H.; Matsunaga, H.; Nakamura, K.; Nakamura, T.; Ninomiya, Y.; Oda, S.; Okuyama, T.; Sakamoto, H.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamaguchi, H.; Yamamoto, S.; Yamamura, T.; Yamanaka, T.; Yamazaki, T.] Univ Tokyo, Dept Phys, Tokyo 113, Japan.
[Bratzler, U.; Fukunaga, C.] Tokyo Metropolitan Univ, Grad Sch Sci & Technol, Tokyo 158, Japan.
[Jinnouchi, O.; Kanno, T.; Kuze, M.] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan.
[Bailey, D. C.; Bain, T.; Beare, B.; Brelier, B.; Cheung, S. L.; Deviveiros, P. O.; Dhaliwal, S.; Farooque, T.; Fatholahzadeh, B.; Gibson, A.; Guo, B.; Jankowski, E.; Keung, J.; Knecht, N. S.; Krieger, P.; Le Maner, C.; Martens, F. K.; Orr, R. S.; Rezvani, R.; Rosenbaum, G. A.; Savard, P.; Sinervo, P.; Spreitzer, T.; Tardif, D.; Teuscher, R. J.; Thompson, P. D.; Trischuk, W.] Univ Toronto, Dept Phys, Toronto, ON, Canada.
[Azuelos, G.; Canepa, A.; Caron, B.; Chekulaev, S. V.; Fortin, D.; Gingrich, D. M.; Losty, M. J.; Nugent, I. M.; Oakham, F. G.; Oram, C. J.; Savard, P.; Schouten, D.; Stelzer-Chilton, O.; Tafirout, R.; Trigger, I. M.; Vetterli, M. C.] TRIUMF, Vancouver, BC V6T 2A3, Canada.
[Palacino, G.; Taylor, W.] York Univ, Dept Phys & Astron, Toronto, ON M3J 2R7, Canada.
[Hara, K.; Hayashi, T.; Kim, S. H.; Kurata, M.; Nagai, K.; Ukegawa, F.] Univ Tsukuba, Inst Pure & Appl Sci, Ibaraki, Japan.
[Hamilton, S.; Napier, A.; Rolli, S.; Sliwa, K.; Todorova-Nova, S.] Tufts Univ, Ctr Sci & Technol, Medford, MA 02155 USA.
[Losada, M.; Loureiro, K. F.; Navarro, G.; Rodriguez, D.; Sandoval, C.] Univ Antonio Narino, Ctr Invest, Bogota, Colombia.
[Avolio, G.; Bold, T.; Bondioli, M.; Ciobotaru, M. D.; Deng, J.; Dobson, M.; Eschrich, I. Gough; Grabowska-Bold, I.; Hawkins, D.; Lankford, A. J.; Okawa, H.; Porter, R.; Scannicchio, D. A.; Schernau, M.; Taffard, A.; Toggerson, B.; Unel, G.; Werth, M.; Wheeler-Ellis, S. J.; Whiteson, D.; Zhou, N.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA.
[Acharya, B. S.; Cauz, D.; Cobal, M.; De Lotto, B.; De Sanctis, U.; Del Papa, C.; Pinamonti, M.; Shaw, K.; Soualah, R.] Ist Nazl Fis Nucl, Grp Coll Udine, Udine, Italy.
[Acharya, B. S.] Abdus Salaam Int Ctr Theoret Phys, Trieste, Italy.
[Cauz, D.; Cobal, M.; De Lotto, B.; De Sanctis, U.; Del Papa, C.; Giordanic, M. P.; Pinamonti, M.; Shaw, K.; Soualah, R.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[Benekos, N.; Coggeshall, J.; Cortes-Gonzalez, A.; Errede, D.; Errede, S.; Khandanyan, H.; Lie, K.; Liss, T. M.; McCarn, A.; Neubauer, M. S.; Vichou, I.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
[Brenner, R.; Buszello, C. P.; Ekelof, T.; Ellert, M.; Ferrari, A.] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden.
[Amoros, G.; Urban, S. Cabrera; Gimenez, V. Castillo; Costa, M. J.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Pastor, E. Torro; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] CSIC, Valencia, Spain.
[Amoros, G.; Urban, S. Cabrera; Gimenez, V. Castillo; Costa, M. J.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Pastor, E. Torro; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Inst Microelect Barcelona IMB CNM, Valencia, Spain.
[Amoros, G.; Urban, S. Cabrera; Gimenez, V. Castillo; Costa, M. J.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Pastor, E. Torro; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Inst Fis Corpuscular IFIC, Valencia, Spain.
[Amoros, G.; Urban, S. Cabrera; Gimenez, V. Castillo; Costa, M. J.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Pastor, E. Torro; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Dept Fis Atom Mol & Nucl, Valencia, Spain.
[Amoros, G.; Urban, S. Cabrera; Gimenez, V. Castillo; Costa, M. J.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Pastor, E. Torro; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Dept Ingn Elect, Valencia, Spain.
[Axen, D.; Gay, C.; Loh, C. W.; Mills, W. J.; Muir, A.; Swedish, S.; Viel, S.] Univ British Columbia, Dept Phys, Vancouver, BC, Canada.
[Albert, J.; Astbury, A.; Bansal, V.; Berghaus, F.; Courneyea, L.; Fincke-Keeler, M.; Keeler, R.; Kowalewski, R.; Lefebvre, M.; Lessard, J-R.; McPherson, R. A.; Plamondon, M.; Sobie, R.] Univ Victoria, Dept Phys & Astron, Victoria, BC, Canada.
[Kimura, N.; Yorita, K.] Waseda Univ, Tokyo, Japan.
[Alon, R.; Barak, L.; Duchovni, E.; Frank, T.; Gabizon, O.; Gross, E.; Groth-Jensen, J.; Klier, A.; Lellouch, D.; Levinson, L. J.; Mikenberg, G.; Milov, A.; Milstein, D.; Roth, I.; Silbert, O.; Smakhtin, V.; Vitells, O.] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel.
[Asfandiyarov, R.; Banerjee, Sw.; Montoya, G. D. Carrillo; Hernandez, A. M. Castaneda; Castaneda-Miranda, E.; Chen, X.; Dos Anjos, A.; Fang, Y.; Castillo, L. R. Flores; Gonzalez, S.; Guida, A.; Gutzwiller, O.; Ji, H.; Kashif, L.; La Rosa, A.; Cheong, A. Leung Fook; Li, H.; Ma, L. L.; Garcia, B. R. Mellado; Pan, Y. B.; Morales, M. I. Pedraza; Poveda, J.; Quayle, W. B.; Sarangi, T.; Wang, H.; Wiedenmann, W.; Wu, S. L.; Zobernig, G.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
[Fleischmann, P.; Meyer, J.; Redelbach, A.; Siragusa, G.; Stroehmer, R.; Trefzger, T.] Univ Wurzburg, Fak Phys & Astron, Wurzburg, Germany.
[Barisonzi, M.; Becks, K. H.; Boek, J.; Braun, H. M.; Drees, J.; Fleischmann, S.; Flick, T.; Gerlach, P.; Glitza, K. W.; Gorfine, G.; Grah, C.; Hamacher, K.; Harenberg, T.; Henss, T.; Hirschbuehl, D.; Kalinin, S.; Kersten, S.; Khoroshilov, A.; Kootz, A.; Lenzen, G.; Maettig, P.; Mechtel, M.; Pataraia, S.; Sandhoff, M.; Sandvoss, S.; Sartisohn, G.; Schultes, J.; Siebel, A.; Sturm, P.; Thadome, J.; Voss, T. T.; Wagner, W.; Wahlen, H.; Wicke, D.; Zeitnitz, C.] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany.
[Adelman, J.; Atoian, G.; Baker, O. K.; Bedikian, S.; Almenar, C. Cuenca; Czyczula, Z.; Demers, S.; Garberson, F.; Golling, T.; Guest, D.; Hsu, P. J.; Kaplan, B.; Lee, L.; Loginov, A.; Martin, A. J.; Sherman, D.; Thioye, M.; Tipton, P.; Wall, R.; Zeller, M.] Yale Univ, Dept Phys, New Haven, CT USA.
[Hakobyan, H.] Yerevan Phys Inst, Yerevan 375036, Armenia.
[Biscarat, C.; Cogneras, E.; Rahal, G.] CNRS, Ctr Calcul, IN2P3, Domaine Sci Doua, Villeurbanne, France.
[Amorim, A.; Gomes, A.; Jorge, P. M.; Lopes, L.; Maio, A.; Palma, A.; Pina, J.; Pinto, B.; Saraiva, J. G.; Silva, J.] Univ Lisbon, Fac Ciencias, Lisbon, Portugal.
[Bawa, H. S.; Gao, Y. S.; Lowe, A. J.] Calif State Univ Fresno, Dept Phys, Fresno, CA 93740 USA.
[Bold, T.; Grabowska-Bold, I.] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland.
[Canelli, F.] Fermilab Natl Accelerator Lab, Batavia, IL USA.
[Carvalho, J.; Fiolhais, M. C. N.; Oliveira, M.; Wolters, H.] Univ Coimbra, Dept Phys, Coimbra, Portugal.
[Conventi, F.; Della Pietra, M.] Univ Napoli Parthenope, Naples, Italy.
[Demirkoz, B.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey.
[Dhullipudi, R.; Greenwood, Z. D.; Sawyer, L.] Louisiana Tech Univ, Ruston, LA 71270 USA.
[Kono, T.; Terwort, M.; Wildt, M. A.] Univ Hamburg, Inst Expt Phys, Hamburg, Germany.
[Konoplich, R.] Manhattan Coll, New York, NY USA.
[Liang, Z.; Soh, D. A.; Weng, Z.] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou, Peoples R China.
[Lin, S. C.] Acad Sinica, Inst Phys, Acad Sinica Grid Comp, Taipei, Taiwan.
[Onofre, A.] Univ Minho, Dept Fis, Braga, Portugal.
[Park, W.; Purohit, M.; Trivedi, A.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Pasztor, G.; Toth, J.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary.
[Perez, K.] CALTECH, Pasadena, CA 91125 USA.
[Richter-Was, E.] Jagiellonian Univ, Inst Phys, Krakow, Poland.
RP Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
RI Smirnova, Lidia/D-8089-2012; Smirnov, Sergei/F-1014-2011; Gladilin,
Leonid/B-5226-2011; Kramarenko, Victor/E-1781-2012; Alexa,
Calin/F-6345-2010; Moorhead, Gareth/B-6634-2009; Petrucci,
Fabrizio/G-8348-2012; Wemans, Andre/A-6738-2012; Fabbri,
Laura/H-3442-2012; Kurashige, Hisaya/H-4916-2012; Kuzhir,
Polina/H-8653-2012; Delmastro, Marco/I-5599-2012; Weigell,
Philipp/I-9356-2012; Fazio, Salvatore /G-5156-2010; Gutierrez,
Phillip/C-1161-2011; Ferrando, James/A-9192-2012; collins-tooth,
christopher/A-9201-2012; Perrino, Roberto/B-4633-2010; De Cecco,
Sandro/B-1016-2012; Stoicea, Gabriel/B-6717-2011; branchini,
paolo/A-4857-2011; Wolter, Marcin/A-7412-2012; Rotaru,
Marina/A-3097-2011; valente, paolo/A-6640-2010; Buttar,
Craig/D-3706-2011; Takai, Helio/C-3301-2012; Li, Xuefei/C-3861-2012;
Juste, Aurelio/I-2531-2015; Grinstein, Sebastian/N-3988-2014; Yang,
Haijun/O-1055-2015; Monzani, Simone/D-6328-2017; Doyle,
Anthony/C-5889-2009; Grancagnolo, Francesco/K-2857-2015; Korol,
Aleksandr/A-6244-2014; Jones, Roger/H-5578-2011; Vranjes Milosavljevic,
Marija/F-9847-2016; SULIN, VLADIMIR/N-2793-2015; Olshevskiy,
Alexander/I-1580-2016; Mora Herrera, Maria Clemencia/L-3893-2016;
Maneira, Jose/D-8486-2011; Prokoshin, Fedor/E-2795-2012; Goncalo,
Ricardo/M-3153-2016; Canelli, Florencia/O-9693-2016; Solodkov,
Alexander/B-8623-2017; Zaitsev, Alexandre/B-8989-2017; Camarri,
Paolo/M-7979-2015; Gavrilenko, Igor/M-8260-2015; Chekulaev,
Sergey/O-1145-2015; Gorelov, Igor/J-9010-2015; Carvalho,
Joao/M-4060-2013; Booth, Christopher/B-5263-2016; Tikhomirov,
Vladimir/M-6194-2015; Gonzalez de la Hoz, Santiago/E-2494-2016; Guo,
Jun/O-5202-2015; Smirnova, Oxana/A-4401-2013; Aguilar Saavedra, Juan
Antonio/F-1256-2016; Leyton, Michael/G-2214-2016; Ventura,
Andrea/A-9544-2015; Villaplana Perez, Miguel/B-2717-2015; Livan,
Michele/D-7531-2012; Mitsou, Vasiliki/D-1967-2009; Joergensen,
Morten/E-6847-2015; Mir, Lluisa-Maria/G-7212-2015; Riu,
Imma/L-7385-2014; Cavalli-Sforza, Matteo/H-7102-2015; Ferrer,
Antonio/H-2942-2015; Hansen, John/B-9058-2015; Grancagnolo,
Sergio/J-3957-2015; spagnolo, stefania/A-6359-2012; Shmeleva,
Alevtina/M-6199-2015; Lokajicek, Milos/G-7800-2014; Staroba,
Pavel/G-8850-2014; Kupco, Alexander/G-9713-2014; Mikestikova,
Marcela/H-1996-2014; Snesarev, Andrey/H-5090-2013; Svatos,
Michal/G-8437-2014; Chudoba, Jiri/G-7737-2014; Peleganchuk,
Sergey/J-6722-2014; Santamarina Rios, Cibran/K-4686-2014; Bosman,
Martine/J-9917-2014; Lei, Xiaowen/O-4348-2014; Demirkoz,
Bilge/C-8179-2014; Tudorache, Valentina/D-2743-2012; Marti-Garcia,
Salvador/F-3085-2011; Wolters, Helmut/M-4154-2013; Warburton,
Andreas/N-8028-2013; De, Kaushik/N-1953-2013; Sukharev,
Andrey/A-6470-2014; O'Shea, Val/G-1279-2010; Lee, Jason/B-9701-2014;
Morozov, Sergey/C-1396-2014; Robson, Aidan/G-1087-2011; Ancu, Lucian
Stefan/F-1812-2010; Villa, Mauro/C-9883-2009; Nemecek,
Stanislav/G-5931-2014; Pina, Joao /C-4391-2012; Vanyashin,
Aleksandr/H-7796-2013; Casadei, Diego/I-1785-2013; La Rosa,
Alessandro/I-1856-2013; Moraes, Arthur/F-6478-2010; Conde Muino,
Patricia/F-7696-2011; Boyko, Igor/J-3659-2013; Kuleshov,
Sergey/D-9940-2013; Anjos, Nuno/I-3918-2013; Liu, Sheng/K-2815-2013;
Kartvelishvili, Vakhtang/K-2312-2013; Dawson, Ian/K-6090-2013; Solfaroli
Camillocci, Elena/J-1596-2012; Veneziano, Stefano/J-1610-2012; Di Micco,
Biagio/J-1755-2012; Di Nardo, Roberto/J-4993-2012; Della Pietra,
Massimo/J-5008-2012; Andreazza, Attilio/E-5642-2011; Bergeaas Kuutmann,
Elin/A-5204-2013; Cascella, Michele/B-6156-2013; messina,
andrea/C-2753-2013; Amorim, Antonio/C-8460-2013; Orlov,
Ilya/E-6611-2012; Annovi, Alberto/G-6028-2012; Brooks,
William/C-8636-2013
OI Smirnov, Sergei/0000-0002-6778-073X; Gladilin,
Leonid/0000-0001-9422-8636; Moorhead, Gareth/0000-0002-9299-9549;
Petrucci, Fabrizio/0000-0002-5278-2206; Wemans,
Andre/0000-0002-9669-9500; Fabbri, Laura/0000-0002-4002-8353; Kuzhir,
Polina/0000-0003-3689-0837; Delmastro, Marco/0000-0003-2992-3805;
Ferrando, James/0000-0002-1007-7816; Perrino,
Roberto/0000-0002-5764-7337; Stoicea, Gabriel/0000-0002-7511-4614;
Rotaru, Marina/0000-0003-3303-5683; valente, paolo/0000-0002-5413-0068;
Takai, Helio/0000-0001-9253-8307; Belanger-Champagne,
Camille/0000-0003-2368-2617; Prokofiev, Kirill/0000-0002-2177-6401;
Chen, Chunhui /0000-0003-1589-9955; Filthaut, Frank/0000-0003-3338-2247;
abi, babak/0000-0001-7036-9645; Castro, Nuno/0000-0001-8491-4376;
Farrington, Sinead/0000-0001-5350-9271; Turra,
Ruggero/0000-0001-8740-796X; Robson, Aidan/0000-0002-1659-8284; Weber,
Michele/0000-0002-2770-9031; Strube, Jan/0000-0001-7470-9301; Beck, Hans
Peter/0000-0001-7212-1096; Salamanna, Giuseppe/0000-0002-0861-0052;
Evans, Harold/0000-0003-2183-3127; De Lotto,
Barbara/0000-0003-3624-4480; Cristinziani, Markus/0000-0003-3893-9171;
Chromek-Burckhart, Doris/0000-0003-4243-3288; Qian,
Jianming/0000-0003-4813-8167; Haas, Andrew/0000-0002-4832-0455; Cranmer,
Kyle/0000-0002-5769-7094; Klinkby, Esben Bryndt/0000-0002-1908-5644;
Pomarede, Daniel/0000-0003-2038-0488; Vos, Marcel/0000-0001-8474-5357;
Juste, Aurelio/0000-0002-1558-3291; Begel, Michael/0000-0002-1634-4399;
Vari, Riccardo/0000-0002-2814-1337; Di Micco,
Biagio/0000-0002-4067-1592; Nisati, Aleandro/0000-0002-5080-2293; Gray,
Heather/0000-0002-5293-4716; Mincer, Allen/0000-0002-6307-1418;
Grinstein, Sebastian/0000-0002-6460-8694; Osculati, Bianca
Maria/0000-0002-7246-060X; Adye, Tim/0000-0003-0627-5059; Monzani,
Simone/0000-0002-0479-2207; Bailey, David C/0000-0002-7970-7839; Doyle,
Anthony/0000-0001-6322-6195; Nielsen, Jason/0000-0002-9175-4419;
Grancagnolo, Francesco/0000-0002-9367-3380; Chen,
Hucheng/0000-0002-9936-0115; Cataldi, Gabriella/0000-0001-8066-7718;
Sawyer, Lee/0000-0001-8295-0605; Korol, Aleksandr/0000-0001-8448-218X;
Giordani, Mario/0000-0002-0792-6039; Jones, Roger/0000-0002-6427-3513;
Vranjes Milosavljevic, Marija/0000-0003-4477-9733; SULIN,
VLADIMIR/0000-0003-3943-2495; Olshevskiy, Alexander/0000-0002-8902-1793;
Mora Herrera, Maria Clemencia/0000-0003-3915-3170; Maneira,
Jose/0000-0002-3222-2738; Prokoshin, Fedor/0000-0001-6389-5399; Goncalo,
Ricardo/0000-0002-3826-3442; Canelli, Florencia/0000-0001-6361-2117;
Solodkov, Alexander/0000-0002-2737-8674; Zaitsev,
Alexandre/0000-0002-4961-8368; Camarri, Paolo/0000-0002-5732-5645;
Gorelov, Igor/0000-0001-5570-0133; Carvalho, Joao/0000-0002-3015-7821;
Booth, Christopher/0000-0002-6051-2847; Tikhomirov,
Vladimir/0000-0002-9634-0581; Gonzalez de la Hoz,
Santiago/0000-0001-5304-5390; Guo, Jun/0000-0001-8125-9433; Smirnova,
Oxana/0000-0003-2517-531X; Aguilar Saavedra, Juan
Antonio/0000-0002-5475-8920; Leyton, Michael/0000-0002-0727-8107;
Ventura, Andrea/0000-0002-3368-3413; Villaplana Perez,
Miguel/0000-0002-0048-4602; Livan, Michele/0000-0002-5877-0062; Mitsou,
Vasiliki/0000-0002-1533-8886; Joergensen, Morten/0000-0002-6790-9361;
Mir, Lluisa-Maria/0000-0002-4276-715X; Riu, Imma/0000-0002-3742-4582;
Ferrer, Antonio/0000-0003-0532-711X; Hansen, John/0000-0002-8422-5543;
Grancagnolo, Sergio/0000-0001-8490-8304; spagnolo,
stefania/0000-0001-7482-6348; Mikestikova, Marcela/0000-0003-1277-2596;
Svatos, Michal/0000-0002-7199-3383; Peleganchuk,
Sergey/0000-0003-0907-7592; Santamarina Rios,
Cibran/0000-0002-9810-1816; Bosman, Martine/0000-0002-7290-643X; Lei,
Xiaowen/0000-0002-2564-8351; Wolters, Helmut/0000-0002-9588-1773;
Warburton, Andreas/0000-0002-2298-7315; De, Kaushik/0000-0002-5647-4489;
O'Shea, Val/0000-0001-7183-1205; Lee, Jason/0000-0002-2153-1519;
Morozov, Sergey/0000-0002-6748-7277; Ancu, Lucian
Stefan/0000-0001-5068-6723; Villa, Mauro/0000-0002-9181-8048; Pina, Joao
/0000-0001-8959-5044; Vanyashin, Aleksandr/0000-0002-0367-5666; La Rosa,
Alessandro/0000-0001-6291-2142; Moraes, Arthur/0000-0002-5157-5686;
Conde Muino, Patricia/0000-0002-9187-7478; Boyko,
Igor/0000-0002-3355-4662; Kuleshov, Sergey/0000-0002-3065-326X;
Solfaroli Camillocci, Elena/0000-0002-5347-7764; Veneziano,
Stefano/0000-0002-2598-2659; Della Pietra, Massimo/0000-0003-4446-3368;
Andreazza, Attilio/0000-0001-5161-5759; Cascella,
Michele/0000-0003-2091-2501; Orlov, Ilya/0000-0003-4073-0326; Annovi,
Alberto/0000-0002-4649-4398; Brooks, William/0000-0001-6161-3570
FU ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS,
Azerbaijan; SSTC, Belarus; CNPq, Brazil; FAPESP, Brazil; NSERC, Canada;
NRC, Canada; CFI, Canada; CERN; CONICYT, Chile; CAS, China; MOST, China;
NSFC, China; COLCIEN-CIAS, Colombia; MSMT CR, Czech Republic; MPO CR,
Czech Republic; VSC CR, Czech Republic; DNRF, Denmark; DNSRC, Denmark;
Lundbeck Foundation, Denmark; ARTEMIS, European Union; IN2P3-CNRS,
France; CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, Germany; DFG,
Germany; HGF, Germany; MPG, Germany; AvH Foundation, Germany; GSRT,
Greece; ISF, Israel; MINERVA, Israel; GIF, Israel; DIP, Israel; Benoziyo
Center, Israel; INFN, Italy; MEXT, Japan; JSPS, Japan; CNRST, Morocco;
NWO, Netherlands; FOM, Netherlands; RCN, Norway; MNiSW, Poland; GRICES,
Portugal; FCT, Portugal; MERYS (MECTS), Romania; MES of Russia; ROSATOM,
Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS, Slovenia;
MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC, Sweden;
Wallenberg Foundation, Sweden; SER, Switzerland; SNSF, Switzerland;
Canton of Bern, Switzerland; Canton of Geneva, Switzerland; NSC, Taiwan;
TAEK, Turkey; STFC, United Kingdom; the Royal Society, United Kingdom;
Leverhulme Trust, United Kingdom; DOE, United States of America; NSF,
United States of America
FX We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC,
Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and
FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS,
MOST and NSFC, China; COLCIEN-CIAS, Colombia; MSMT CR, MPO CR and VSC
CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark;
ARTEMIS, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS,
Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece;
ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT
and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway;
MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of
Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR,
Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain;
SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and
Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society
and Leverhulme Trust, United Kingdom; DOE and NSF, United States of
America.
NR 45
TC 15
Z9 15
U1 4
U2 58
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 NOV
PY 2011
VL 71
IS 11
AR 1795
DI 10.1140/epjc/s10052-011-1795-y
PG 25
WC Physics, Particles & Fields
SC Physics
GA 857GT
UT WOS:000297706700015
ER
PT J
AU Aad, G
Abbott, B
Abdallah, J
Abdelalim, AA
Abdesselam, A
Abdinov, O
Abi, B
Abolins, M
Abramowicz, H
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CA ATLAS Collaboration
TI Measurement of multi-jet cross sections in proton-proton collisions at a
7 TeV center-of-mass energy
SO EUROPEAN PHYSICAL JOURNAL C
LA English
DT Article
ID ANTIPROTON COLLIDER; PHOTOPRODUCTION; SIMULATION; EVENTS; HERA; PHYSICS
AB Inclusive multi-jet production is studied in proton-proton collisions at a center-of-mass energy of 7 TeV, using the ATLAS detector. The data sample corresponds to an integrated luminosity of 2.4 pb(-1). Results on multi-jet cross sections are presented and compared to both leading-order plus parton-shower Monte Carlo predictions and to next-to-leading-order QCD calculations.
C1 [Aad, G.; Ahles, F.; Beckingham, M.; Bernhard, R.; Bitenc, U.; Bruneliere, R.; Caron, S.; Christov, A.; Consorti, V.; Eckert, S.; Fehling-Kaschek, M.; Flechl, M.; Glatzer, J.; Hartert, J.; Herten, G.; Horner, S.; Jakobs, K.; Ketterer, C.; Kollefrath, M.; Kononov, A. I.; Kuehn, S.; Lai, S.; Landgraf, U.; Lohwasser, K.; Ludwig, I.; Ludwig, J.; Lumb, D.; Mahboubi, K.; Meinhardt, J.; Mohr, W.; Nilsen, H.; Parzefall, U.; Rammensee, M.; Runge, K.; Rurikova, Z.; Schmidt, E.; Schumacher, M.; Siegert, F.; Stoerig, K.; Sundermann, J. E.; Temming, K. K.; Thoma, S.; Tobias, J.; Tsiskaridze, V.; Venturi, M.; Vivarelli, I.; von Radziewski, H.; Warsinsky, M.; Weiser, C.; Werner, M.; Wiik, L. A. M.; Winkelmann, S.; Xie, S.; Zimmermann, S.] Univ Freiburg, Fak Math & Phys, D-79106 Freiburg, Germany.
[Alam, M. S.; Ernst, J.; Rojo, V.] Univ Albany, Albany, NY USA.
[Bahinipati, S.; Buchanan, N. J.; Chan, K.; Gingrich, D. M.; Kim, M. S.; Liu, S.; Moore, R. W.; Pinfold, J. L.; Soni, N.; Subramania, H. S.] Univ Alberta, Dept Phys, Edmonton, AB, Canada.
[Cakir, O.; Ciftci, A. K.; Ciftci, R.; Persembe, S.] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey.
[Yildiz, H. Duran] Dumlupinar Univ, Dept Phys, Kutahya, Turkey.
[Yilmaz, M.] Gazi Univ, Dept Phys, Ankara, Turkey.
[Sultansoy, S.] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey.
[Cakire, I. Turk] Turkish Atom Energy Commiss, Ankara, Turkey.
[Bella, L. Aperio; Aubert, B.; Berger, N.; Colas, J.; Di Ciaccio, L.; Doan, T. K. O.; Elles, S.; Ghez, P.; Gouanere, M.; Goy, C.; Guillemin, T.; Helary, L.; Hryn'ova, T.; Ionescu, G.; Jeremie, A.; Jezequel, S.; Kataoka, M.; Labbe, J.; Lafaye, R.; Leveque, J.; Lombardo, V. P.; Massol, N.; Perrodo, P.; Przysiezniak, H.; Sauvage, G.; Todorov, T.; Tsionou, D.; Wingerter-Seez, I.; Zitoun, R.; Zolnierowski, Y.] Univ Savoie, Annecy Le Vieux, France.
[Bella, L. Aperio; Aubert, B.; Berger, N.; Colas, J.; Di Ciaccio, L.; Doan, T. K. O.; Elles, S.; Ghez, P.; Gouanere, M.; Goy, C.; Guillemin, T.; Helary, L.; Hryn'ova, T.; Ionescu, G.; Jeremie, A.; Jezequel, S.; Kataoka, M.; Labbe, J.; Lafaye, R.; Leveque, J.; Lombardo, V. P.; Massol, N.; Perrodo, P.; Przysiezniak, H.; Sauvage, G.; Todorov, T.; Tsionou, D.; Wingerter-Seez, I.; Zitoun, R.] CNRS, LAPP, IN2P3, Annecy Le Vieux, France.
[Asquith, L.; Blair, R. E.; Chekanov, S.; Dawson, J. W.; Fellmann, D.; Guarino, V. J.; Hill, D.; Hill, N.; Karr, K.; LeCompte, T.; Malon, D.; May, E. N.; Nodulman, L.; Paramonov, A.; Price, L. E.; Proudfoot, J.; Ferrando, B. M. Salvachua; Schlereth, J. L.; Stanek, R. W.; Underwood, D. G.; van Gemmeren, P.; Vaniachine, A.; Yoshida, R.; Zhang, J.] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.
[Cheu, E.; Johns, K. A.; Kaushik, V.; Lampen, C. L.; Lampl, W.; Lei, X.; Loch, P.; Mal, P.; Ruehr, F.; Rutherfoord, J. P.; Shaver, L.; Shupe, M. A.; Varnes, E. W.] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA.
[Alonso, A.; Brandt, A.; Brown, H.; De, K.; Farbin, A.; Heelan, L.; Hernandez, C. M.; Kim, H.; Nilsson, P.; Ozturk, N.; Pravahan, R.; Sarkisyan-Grinbaum, E.; Sosebee, M.; Spurlock, B.; Stradling, A. R.; Usai, G.; Vartapetian, A.; White, A.; Yu, J.] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA.
[Fassouliotis, D.; Giakoumopoulou, V.; Giokaris, N.; Ioannou, P.; Kourkoumelis, C.; Manousakis-Katsikakis, A.; Tzanakos, G.; Vellidis, C.] Univ Athens, Dept Phys, Athens, Greece.
[Alexopoulos, T.; Avramidou, R.; Dris, M.; Filippas, A.; Fokitis, M.; Gazis, E. N.; Iakovidis, G.; Katsoufis, E.; Leontsinis, S.; Maltezos, S.; Panagiotopoulou, E.; Papadopoulou, Th. D.; Savva, P.; Tsipolitis, G.; Vlachos, S.; Xaplanteris, L.] Natl Tech Univ Athens, Dept Phys, Zografos, Greece.
[Abdinov, O.; Aliyev, M.; Huseynov, N.; Khalil-zada, F.; Rzaeva, S.] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan.
[Abdallah, J.; Bosman, M.; Casado, M. P.; Cavalli-Sforza, M.; Conidi, M. C.; Demirkoz, B.; Dosil, M.; Espinal Curull, X.; Grinstein, S.; Helsens, C.; Korolkov, I.; Martinez, M.; Meoni, E.; Mir, L. M.; Miralles Verge, L.; Nadal, J.; Osuna, C.; Pacheco Pages, A.; Padilla Aranda, C.; Perez Codina, E.; Riu, I.; Rossetti, V.; Segura, E.; Succurro, A.; Sushkov, S.; Vives Vaque, F.; Volpi, M.; Vorwerk, V.] ICREA, Barcelona, Spain.
[Abdallah, J.; Bosman, M.; Casado, M. P.; Cavalli-Sforza, M.; Conidi, M. C.; Demirkoz, B.; Dosil, M.; Espinal Curull, X.; Grinstein, S.; Helsens, C.; Korolkov, I.; Martinez, M.; Meoni, E.; Mir, L. M.; Miralles Verge, L.; Nadal, J.; Osuna, C.; Pacheco Pages, A.; Padilla Aranda, C.; Perez Codina, E.; Riu, I.; Rossetti, V.; Segura, E.; Succurro, A.; Sushkov, S.; Vives Vaque, F.; Volpi, M.; Vorwerk, V.] Univ Autonoma Barcelona, E-08193 Barcelona, Spain.
[Abdallah, J.; Bosman, M.; Casado, M. P.; Cavalli-Sforza, M.; Conidi, M. C.; Demirkoz, B.; Dosil, M.; Espinal Curull, X.; Grinstein, S.; Helsens, C.; Korolkov, I.; Martinez, M.; Meoni, E.; Mir, L. M.; Miralles Verge, L.; Nadal, J.; Osuna, C.; Pacheco Pages, A.; Padilla Aranda, C.; Perez Codina, E.; Riu, I.; Rossetti, V.; Segura, E.; Succurro, A.; Sushkov, S.; Vives Vaque, F.; Volpi, M.; Vorwerk, V.] Inst Fis Altes Energies, Barcelona, Spain.
[Borjanovic, I.; Krstic, J.; Popovic, D. S.; Reljic, D.; Sijacki, Dj.; Simic, Lj.; Vranjes, N.; Milosavljevic, M. Vranjes] Univ Belgrade, Inst Phys, Belgrade, Serbia.
[Bozovic-Jelisavcic, I.; Mamuzic, J.] Vinca Inst Nucl Sci, Belgrade, Serbia.
[Buanes, T.; Burgess, T.; Eigen, G.; Johansen, L. G.; Kastanas, A.; Liebig, W.; Lipniacka, A.; Mohn, B.; Oye, O. K.; Rosendahl, P. L.; Sandaker, H.; Sjursen, T. B.; Stugu, B.; Tonoyan, A.; Ugland, M.] Univ Bergen, Dept Phys & Technol, Bergen, Norway.
[Arguin, J. -F.; Bach, A. M.; Galtieri, A. Barbaro; Barnett, R. M.; Beringer, J.; Biesiada, J.; Calafiura, P.; Ciocio, A.; Cooke, M.; Dube, S.; Einsweiler, K.; Ely, R.; Gaponenko, A.; Garcia-Sciveres, M.; Gilchriese, M.; Haber, C.; Heinemann, B.; Hinchliffe, I.; Hsu, S. -C.; Hurwitz, M.; Joseph, J.; Korn, A.; Lavrijsen, W.; Leggett, C.; Loscutoff, P.; Lys, J.; Madaras, R. J.; Quarrie, D. R.; Ruwiedel, C.; Scherzer, M. I.; Shapiro, M.; Siegrist, J.; Skinnari, L. A.; Stavropoulos, G.; Tatarkhanov, M.; Tompkins, L.; Vahsen, S.; Varouchas, D.; Virzi, J.; Yao, W. -M.; Yao, Y.; Zenz, S.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA.
[Aliev, M.; Brandt, G.; Giorgi, F. M.; Grancagnolo, S.; Herrberg, R.; Hristova, I.; Kind, O.; Kolanoski, H.; Kwee, R.; Lacker, H.; Leyton, M.; Lohse, T.; Mandrysch, R.; Nikiforov, A.; Garcia, Y. Rodriguez; Schulz, H.; zur Nedden, M.] Humboldt Univ, Dept Phys, Berlin, Germany.
[Battaglia, A.; Beck, H. P.; Borer, C.; Ereditato, A.; Martin, T. Fonseca; Gallo, V.; Haug, S.; Kabana, S.; Kruker, T.; Pretzl, K.; Schernau, M.; Topfel, C.; Venturi, N.; Weber, M. S.] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland.
[Battaglia, A.; Beck, H. P.; Borer, C.; Ereditato, A.; Martin, T. Fonseca; Gallo, V.; Haug, S.; Kabana, S.; Kruker, T.; Pretzl, K.; Schernau, M.; Topfel, C.; Venturi, N.; Weber, M. S.] Univ Bern, High Energy Phys Lab, Bern, Switzerland.
[Bansil, H. S.; Bracinik, J.; Charlton, D. G.; Collins, N. J.; Curtis, C. J.; Dowell, J. D.; Garvey, J.; Hadley, D. R.; Harrison, K.; Hawkes, C. M.; Head, S. J.; Hillier, S. J.; Lilley, J. N.; Mahout, G.; Martin, T. A.; Mclaughlan, T.; Newman, P. R.; O'Neale, S. W.; Palmer, J. D.; Slater, M.; Thomas, J. P.; Thompson, P. D.; Watkins, P. M.; Watson, A. T.; Watson, M. F.; Wilson, J. A.] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England.
[Akdogan, T.; Arika, E.; Arik, M.; Istin, S.; Ozcan, V. E.; Rador, T.] Bogazici Univ, Dept Phys, Istanbul, Turkey.
[Cetin, S. A.] Dogus Univ, Div Phys, Istanbul, Turkey.
[Beddall, A. J.; Beddall, A.; Bingulc, A.; Diblen, F.] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkey.
Istanbul Tech Univ, Dept Phys, TR-80626 Istanbul, Turkey.
[Bellagamba, L.; Bertin, A.; Bindi, M.; Boscherini, D.; Bruni, A.; Bruni, G.; Bruschi, M.; Caforio, D.; Ciocca, C.; Corradi, M.; De Castro, S.; Di Sipio, R.; Fabbri, L.; Giacobbe, B.; Giusti, P.; Jha, M. K.; Massa, I.; Mengarelli, A.; Monzani, S.; Piccinini, M.; Polini, A.; Rinaldi, L.; Sbarra, C.; Sbrizzi, A.; Spighi, R.; Valentinetti, S.; Villa, M.; Vitale, A.; Zoccoli, A.] Univ Bologna, INFN Sez Bologna, Bologna, Italy.
[Bertin, A.; Bindi, M.; Caforio, D.; Ciocca, C.; De Castro, S.; Di Sipio, R.; Fabbri, L.; Massa, I.; Mengarelli, A.; Monzani, S.; Piccinini, M.; Sbarra, C.; Sbrizzi, A.; Semprini-Cesari, N.; Valentinetti, S.; Villa, M.; Vitale, A.; Zoccoli, A.] Univ Bologna, Dipartmento Fis, Bologna, Italy.
[Alhroob, M.; Anders, C. F.; Anghinolfi, F.; Arutinov, D.; Backhaus, M.; Barbero, M.; Bartsch, D.; Brock, I.; Cristinziani, M.; Desch, K.; Dingfelder, J.; Fischer, P.; Gaycken, G.; Geich-Gimbel, Ch.; Gonella, L.; Havranek, M.; Hillert, S.; Huegging, F.; Ince, T.; Janus, M.; Khoriauli, G.; Koevesarki, P.; Kokott, T.; Kostyukhin, V. V.; Kroseberg, J.; Krueger, H.; Kruth, A.; Lapoire, C.; Lehmacher, M.; Leyko, A. M.; Limbach, C.; Loddenkoetter, T.; Mathes, M.; Mazur, M.; Meuser, S.; Moeser, N.; Mueller, K.; Nanava, G.; Nattermann, T.; Nuncio-Quiroz, A. -E.; Hanninger, G. Nunes; Poghosyan, T.; Psoroulas, S.; Radics, B.; Runolfsson, O.; Schaepe, S.; Schmieden, K.; Schmitz, M.; Schumacher, J. W.; Stillings, J. A.; Stockmanns, T.; Therhaag, J.; Tsung, J. -W.; Uchida, K.; Uhlenbrock, M.; Vlasov, N.; Vogel, A.; von Toerne, E.; Wermes, N.; Wienemann, P.; Zendler, C.; Zimmermann, R.; Zimmermann, S.] Univ Bonn, Inst Phys, Bonn, Germany.
[Ahlen, S. P.; Black, K. M.; Butler, J. M.; Harrington, R. D.; Hazen, E.; Lewandowska, M.; Love, J.; Marin, A.; Nation, N. R.; Posch, C.; Shank, J. T.; Whitaker, S. P.; Yan, Z.; Youssef, S.] Boston Univ, Dept Phys, Boston, MA 02215 USA.
[Aefsky, S.; Amelung, C.; Bensinger, J. R.; Blocker, C.; Pomeroy, D.; Skvorodnev, N.; Wellenstein, H.] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA.
[Caloba, L. P.; Cerqueira, A. S.; Coura Torres, R.; Da Silva, P. V. M.; do Vale, M. A. B.; Maidantchik, C.; Marroquim, F.; Nepomuceno, A. A.; Perantoni, M.; Seixas, J. M.] Univ Fed do Rio Janeiro COPPE EE IF, Rio De Janeiro, Brazil.
[Donadelli, M.; Leite, M. A. L.] Univ Sao Paulo, Inst Fis, Rio De Janeiro, Brazil.
[Adams, D. L.; Assamagan, K.; Baker, M. D.; Begel, M.; Bernius, C.; Chen, H.; Chernyatin, V.; Salgado, P. E. De Castro Faria; Dhullipudi, R.; Ernst, M.; Gadfort, T.; Gibbard, B.; Gordon, H. A.; Greenwood, Z. D.; Hackenburg, R.; Klimentov, A.; Lanni, F.; Lissauer, D.; Lynn, D.; Ma, H.; Maeno, T.; Majewski, S.; Nevski, P.; Nikolopoulos, K.; Damazio, D. Oliveira; Paige, F.; Panitkin, S.; Park, W.; Pleier, M. -A.; Poblaguev, A.; Polychronakos, V.; Protopopescu, S.; Purohit, M.; Rahm, D.; Rajagopalan, S.; Redlinger, G.; Sawyer, L.; Snyder, S.; Sondericker, J.; Steinberg, P.; Stumer, I.; Takai, H.; Tamsett, M. C.; Tarrade, F.; Trivedi, A.; Undrus, A.; Wenaus, T.; White, S.; Ye, S.; Yu, D.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
[Alexa, C.; Badescu, E.; Boldea, V.; Buda, S. I.; Caprini, I.; Caprini, M.; Caramarcu, C.; Ciubancan, M.; Constantinescu, S.; Cuciuc, C. -M.; Dita, P.; Dita, S.; Micu, L.; Pantea, D.; Popeneciu, G. A.; Rotaru, M.; Stoicea, G.] Natl Inst Phys & Nucl Engn, Bucharest, Romania.
[Darlea, G. L.] Univ Politehn Bucuresti, Bucharest, Romania.
W Univ Timisoara, Timisoara, Romania.
[Gonzalez Silva, M. L.; Otero y Garzon, G.; Piegaia, R.; Romeo, G.] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina.
[Ask, S.; Barber, T.; Barlow, N.; Batley, J. R.; Brochu, F. M.; Buttinger, W.; Carter, J. R.; Chapman, J. D.; Cowden, C.; French, S. T.; Frost, J. A.; Hill, J. C.; Khoo, T. J.; Lester, C. G.; Moeller, V.; Parker, M. A.; Phillips, A. W.; Robinson, D.; Sandoval, T.; Thomson, M.; Ward, C. P.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
[Archambault, J. P.; Cojocaru, C. D.; Gillberg, D.; Khakzad, M.; Liu, C.; McCarthy, T. G.; Oakham, F. G.; Randrianarivony, K.; Ueno, R.; Vincter, M. G.; Whalen, K.] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada.
[Aleksa, M.; Amaral, P.; Anastopoulos, C.; Andrieux, M. -L.; Antos, J.; Arfaoui, S.; Baak, M. A.; Bachas, K.; Bachy, G.; Pedrosa, F. Baltasar Dos Santos; Banfi, D.; Battistin, M.; Bellina, F.; Beltramello, O.; Berge, D.; Bertinelli, F.; Bianchi, R. M.; Blanchot, G.; Bogaerts, J. A.; Boyd, J.; Braem, A.; Bremer, J.; Burckhart, H.; Butin, F.; Campana, S.; Garrido, M. D. M. Capeans; Carli, T.; Cataneo, F.; Catinaccio, A.; Cattai, A.; Cerri, A.; Chromek-Burckhart, D.; Cook, J.; Cote, D.; Danielsson, H. O.; Dauvergne, J. P.; Branco, M. De Oliveira; Dell'Acqua, A.; Delmastro, M.; Delruelle, N.; Di Girolamo, A.; Di Girolamo, B.; Di Micco, B.; Dittus, F.; Dobinson, R.; Dobson, E.; Dopke, J.; Drevermann, H.; Dudarev, A.; Duehrssen, M.; Dunford, M.; Dydak, F.; Eifert, T.; Ellis, N.; Elsing, M.; Fabre, C.; Farthouat, P.; Fassnacht, P.; Foussat, A.; Francis, D.; Franz, S.; Froeschl, R.; Froidevaux, D.; Torregrosa, E. Fullana; Gabaldon, C.; Gallas, M. V.; Garelli, N.; Garonne, V.; Gayde, J. -C.; Gianotti, F.; Gibson, S. M.; Godlewski, J.; Gonidec, A.; Goossens, L.; Gorini, B.; Grafstroem, P.; Gray, H. M.; Grognuz, J.; Haas, S.; Hahn, F.; Haider, S.; Hatch, M.; Hauschild, M.; Hawkings, R. J.; Correia, A. M. Henriques; Hervas, L.; Hoecker, A.; Huhtinen, M.; Inigo-Golfin, J.; Jaekel, M. R.; Jenni, P.; Jonsson, O.; Joram, C.; Kaneda, M.; Kaplon, J.; Kerschen, N.; Klioutchnikova, T.; Knobloch, J.; Koeneke, K.; Koffas, T.; Kollar, D.; Kotamaeki, M. J.; Kvita, J.; Lamanna, M.; Lantzsch, K.; Lasseur, C.; Lassnig, M.; Miotto, G. Lehmann; Lenzi, B.; Lichard, P.; Magnoni, L.; Malyukov, S.; Mapelli, A.; Mapelli, L.; Marchand, J. F.; Marshall, Z.; Martin, B.; Maugain, J. M.; McLaren, R. A.; Menot, C.; Messina, A.; Meyer, T. C.; Michal, S.; Miele, P.; Molina-Perez, J.; Morley, A. K.; Mornacchi, G.; Muenstermann, D.; Nairz, A. M.; Nakahama, Y.; Negri, G.; Nessi, M.; Nicquevert, B.; Niinikoski, T.; Nordberg, M.; Nyman, T.; Palestini, S.; Pastore, Fr.; Pauly, T.; Pengo, R.; Pernegger, H.; Petersen, B. A.; Petersen, J.; Piacquadio, G.; Pirotte, O.; Pommes, K.; Poppleton, A.; Poulard, G.; Pribyl, L.; Price, M. J.; Raymond, M.; Rembser, C.; Dos Santos, D. Roda; Roe, S.; Salzburger, A.; Savu, D. O.; Schlenker, S.; Schott, M.; Schuh, S.; Schuler, G.; Sfyrla, A.; Shimizu, S.; Sloper, J.; Spigo, G.; Spiwoks, R.; Stanecka, E.; Stewart, G. A.; Stockton, M. C.; Sumida, T.; Szeless, B.; Tappern, G. P.; Ten Kate, H.; Torchiani, I.; Tremblet, L.; Tricoli, A.; Tsarouchas, C.; Tyrvainen, H.; Unal, G.; van der Ster, D.; Vandelli, W.; Vandoni, G.; Rodriguez, F. Varela; Veness, R.; Vinek, E.; Voss, R.; Vuillermet, R.; Wells, P. S.; Wengler, T.; Wenig, S.; Werner, P.; Wilkens, H. G.; Winklmeier, F.; Wotschack, J.; Zajacova, Z.; Zsenei, A.; Zwalinski, L.] CERN, Geneva, Switzerland.
[Anderson, K. J.; Anjos, N.; Boveia, A.; Canelli, F.; Choudalakis, G.; Costin, T.; Feng, E. J.; Fiascaris, M.; Gardner, R. W.; Gupta, A.; Plante, I. Jen-La; Kapliy, A.; Melachrinos, C.; Merritt, F. S.; Onyisi, P. U. E.; Oreglia, M. J.; Pilcher, J. E.; Shochet, M. J.; Tuggle, J. M.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Diaz, M. A.; Panes, B.; Quinonez, F.; Maltrana, D. Romero; Urrejola, P.] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile.
[Brooks, W. K.; Kuleshov, S.; Pezoa, R.; Prokoshin, F.] Univ Tecn Federico Santa Maria, Valparaiso, Chile.
[Bai, Y.; Cheng, S.; Han, H.; Jin, S.; Lu, F.; Ouyang, Q.; Shan, L. Y.; Tong, G.; Xie, Y.; Xu, G.; Yang, Y.; Yuan, L.; Zheng, S.] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China.
[Han, L.; Jiang, Y.; Jin, G.; Li, S.; Liu, M.; Liu, Y.; Wang, H.; Wu, Y.; Xu, C.; Zhang, D.; Zhao, Z.] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China.
[Chen, S.; Chen, T.; Ping, J.; Yu, J.; Zhong, J.] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China.
[Feng, C.; Ged, P.; He, M.; Liu, D.; Meng, Z.; Miao, J.; Wang, J.; Zhan, Z.; Zhang, X.; Zhu, C. G.] Shandong Univ, High Energy Phys Grp, Jinan, Shandong, Peoples R China.
[Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Febbraro, R.; Ghodbane, N.; Guicheney, C.; Pallin, D.; Podlyski, F.; Santoni, C.; Says, L. P.; Vazeille, F.; Viret, S.] Clermont Univ, Lab Phys Corpusculaire, Aubiere, France.
[Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Febbraro, R.; Ghodbane, N.; Guicheney, C.; Pallin, D.; Podlyski, F.; Santoni, C.; Says, L. P.; Vazeille, F.; Viret, S.] Univ Clermont Ferrand, Aubiere, France.
[Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Febbraro, R.; Ghodbane, N.; Guicheney, C.; Pallin, D.; Podlyski, F.; Santoni, C.; Says, L. P.; Vazeille, F.; Viret, S.] CNRS, IN2P3, Aubiere, France.
[Andeen, T.; Angerami, A.; Antonov, A.; Brooijmans, G.; Copic, K.; Dodd, J.; Grau, N.; Guo, J.; Hughes, E. W.; Leltchouk, M.; Mateos, D. Lopez; Parsons, J. A.; Penson, A.; Perez, K.; Reale, V. Perez; Spano, F.; Tuts, P. M.; Urbaniec, D.; Williams, E.; Willis, W.; Wulf, E.; Zivkovic, L.] Columbia Univ, Nevis Lab, Irvington, NY USA.
[Boelaert, N.; Dam, M.; Driouichi, C.; Hansen, J. R.; Hansen, J. B.; Hansen, D.; Hansen, P. H.; Heisterkamp, S.; Jakobsen, S.; Jez, P.; Joergensen, M. D.; Kadlecik, P.; Klinkby, E. B.; Lundquist, J.; Mackeprang, R.; Mehlhase, S.; Petersen, T. C.; Si-Monyan, M.; Xella, S.] Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
[Capua, M.; Crosetti, G.; Fazio, S.; La Rotonda, L.; Mastroberardino, A.; Morello, G.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] INFN Grp Collegato Cosenza, Arcavacata Di Rende, Italy.
[Capua, M.; Crosetti, G.; Fazio, S.; La Rotonda, L.; Mastroberardino, A.; Morello, G.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] Univ Calabria, Dipartimento Fis, Arcavacata Di Rende, Italy.
[Bold, T.; Ciba, K.; Dabrowski, W.; Dwuznik, M.; Grabowska-Bold, I.; Idzik, M.; Jelen, K.; Kisielewska, D.; Koperny, S.; Kowalski, T. Z.; Mindur, B.; Rulikowska-Zarebska, E.; Toczek, B.] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland.
[Banas, E.; Blocki, J.; de Renstrom, P. A. Bruckman; Derendarz, D.; Gornicki, E.; Hajduk, Z.; Iwanski, W.; Kaczmarska, A.; Korcyl, K.; Malecki, Pa.; Malecki, P.; Olszewski, A.; Olszowska, J.; Richter-Was, E.; Trzupek, A.; Turala, M.; Wolter, M. W.; Wosiek, B. K.; Zemla, A.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland.
[Daya, R. K.; Yagci, K. Dindar; Firan, A.; Goldin, D.; Hadavand, H. K.; Hoffman, J.; Ilchenko, Y.; Ishmukhametov, R.; Joffe, D.; Kama, S.; Kasmi, A.; Kehoe, R.; Liang, Z.; Renkel, P.; Rios, R. R.; Stroynowski, R.; Ye, J.; Zarzhitsky, P.] So Methodist Univ, Dept Phys, Dallas, TX 75275 USA.
[Ahsan, M.; Galyaev, E.; Izen, J. M.; Reeves, K.] Univ Texas Dallas, Dept Phys, Dallas, TX 75230 USA.
[Bechtle, P.; Kuutmann, E. Bergeaas; Boehler, M.; Dietrich, J.; Ehrenfeld, W.; Ferrara, V.; Fischer, G.; Glazov, A.; Goebel, M.; Fajardo, L. S. Gomez; Da Costa, J. Goncalves Pinto Firmino; Gosdzik, B.; Grahn, K. -J.; Gregor, I. M.; Hiller, K. H.; Holtsch, A.; Husemann, U.; Belenguer, M. Jimenez; Johnert, S.; Karnevskiy, M.; Katzy, J.; Kono, T.; Lange, C.; Lobodzinska, E.; Ludwig, D.; Maettig, S.; Medinnis, M.; Mijovic, L.; Moenig, K.; Naumann, T.; Nozicka, M.; Cavalcanti, T. Perez; Petschull, D.; Piec, S. M.; Placakyte, R.; Qin, Z.; Rubinskiy, I.; Schneider, M.; Stelzer, H. J.; Tackmann, K.; Terwort, M.; Vankov, P.; Viti, M.; Wildt, M. A.; Zhu, H.] DESY, D-2000 Hamburg, Germany.
[Bechtle, P.; Kuutmann, E. Bergeaas; Boehler, M.; Dietrich, J.; Ehrenfeld, W.; Ferrara, V.; Fischer, G.; Glazov, A.; Goebel, M.; Fajardo, L. S. Gomez; Da Costa, J. Goncalves Pinto Firmino; Gosdzik, B.; Grahn, K. -J.; Gregor, I. M.; Hiller, K. H.; Holtsch, A.; Husemann, U.; Belenguer, M. Jimenez; Johnert, S.; Karnevskiy, M.; Katzy, J.; Kono, T.; Lange, C.; Lobodzinska, E.; Ludwig, D.; Maettig, S.; Medinnis, M.; Mijovic, L.; Moenig, K.; Naumann, T.; Nozicka, M.; Cavalcanti, T. Perez; Petschull, D.; Piec, S. M.; Placakyte, R.; Qin, Z.; Rubinskiy, I.; Schneider, M.; Stelzer, H. J.; Tackmann, K.; Terwort, M.; Vankov, P.; Viti, M.; Wildt, M. A.; Zhu, H.] DESY, Zeuthen, Germany.
[Bunse, M.; Dobos, D.; Goessling, C.; Hirsch, F.; Klaiber-Lodewigs, J.; Klingenberg, R.; Krasel, O.; Mass, M.; Reisinger, I.; Walbersloh, J.; Weber, J.; Wunstorf, R.] Tech Univ Dortmund, Inst Expt Phys 4, Dortmund, Germany.
[Goepfert, T.; Kar, D.; Kobel, M.; Leonhardt, K.; Ludwig, A.; Mader, W. F.; Prudent, X.; Schwierz, R.; Seifert, F.; Steinbach, P.; Straessner, A.; Vest, A.] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany.
[Arce, A. T. H.; Benjamin, D. P.; Bocci, A.; Ebenstein, W. L.; Fowler, A. J.; Ko, B. R.; Kotwal, A.; Oh, S. H.; Wang, C.; Yamaoka, J.] Duke Univ, Dept Phys, Durham, NC 27706 USA.
[Bhimji, W.; Buckley, A. G.; Clark, P. J.; O'Brien, B. J.; Wynne, B. M.] Univ Edinburgh, SUPA Sch Phys & Astron, Edinburgh, Midlothian, Scotland.
Fachhochschule Wiener Neustadt, A-2700 Wiener Neustadt, Austria.
[Bilokon, H.; Cerutti, F.; Curatolo, M.; Esposito, B.; Ferrer, M. L.; Gatti, C.; Laurelli, P.; Maccarrone, G.; Sansoni, A.; Testa, M.; Vilucchi, E.; Volpi, G.; Wen, M.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Abdelalim, A. A.; Alexandre, G.; Backes, M.; Barone, G.; Bell, P. J.; Bell, W. H.; Berglund, E.; Blondel, A.; Bucci, F.; Clark, A.; Dao, V.; Ferrere, D.; Gadomski, S.; Navarro, J. E. Garcia; Gaumer, O.; Gonzalez-Sevilla, S.; Goulette, M. P.; Hamilton, A.; Iacobucci, G.; Leger, A.; Lister, A.; Macina, D.; Latour, B. Martin dit; Herrera, C. Mora; Morone, M. -C.; Nektarijevic, S.; Nessi, M.; Pasztor, G.; Pohl, M.; Robichaud-Veronneau, A.; Rosbach, K.; Rosselet, L.; Wu, X.] Univ Geneva, Sect Phys, Geneva, Switzerland.
[Barberis, D.; Beccherle, R.; Caso, C.; Coccaro, A.; Cornelissen, T.; Cuneo, S.; Dameri, M.; Darbo, G.; Parodi, A. Ferretto; Gagliardi, G.; Gemme, C.; Morettini, P.; Olcese, M.; Osculati, B.; Parodi, F.; Rossi, L. P.; Schiavi, C.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy.
[Barberis, D.; Caso, C.; Coccaro, A.; Cornelissen, T.; Cuneo, S.; Dameri, M.; Parodi, A. Ferretto; Gagliardi, G.; Osculati, B.; Parodi, F.; Schiavi, C.] Univ Genoa, Dipartimento Fis, Genoa, Italy.
[Chikovani, L.; Djobava, T.; Khubua, J.; Mchedlidze, G.; Mosidze, M.; Tskhadadze, E. G.] Tbilisi State Univ, GE-380086 Tbilisi, Rep of Georgia.
[Chikovani, L.; Djobava, T.; Khubua, J.; Mchedlidze, G.; Mosidze, M.; Tskhadadze, E. G.] Georgian Acad Sci, Inst Phys, GE-380077 Tbilisi, Rep of Georgia.
[Chikovani, L.; Djobava, T.; Khubua, J.; Mchedlidze, G.; Mosidze, M.; Tskhadadze, E. G.] Georgian Acad Sci, HEP Inst, Tbilisi, Rep of Georgia.
[Astvatsatourov, A.; Duren, M.; Stenzel, H.] Univ Giessen, Inst Phys 2, D-6300 Giessen, Germany.
[Allwood-Spiers, S. E.; Bates, R. L.; Britton, D.; Bussey, P.; Buttar, C. M.; Collins-Tooth, C.; D'Auria, S.; Doherty, T.; Doyle, A. T.; Edwards, N. C.; Ferrag, S.; Ferrando, J.; Gemmell, A.; Kenyon, M.; McGlone, H.; Moraes, A.; O'Shea, V.; Barrera, C. Oropeza; Pickford, A.; Robson, A.; Saxon, D. H.; Shaw, C.; Smith, K. M.; Denis, R. D. St.; Steele, G.; Thompson, A. S.; Wraight, K.; Wright, C.] Univ Glasgow, SUPA Sch Phys & Astron, Glasgow, Lanark, Scotland.
[Ay, C.; Blumenschein, U.; Brandt, O.; Erdmann, J.; Evangelakou, D.; George, M.; Grosse-Knetter, J.; Guindon, S.; Haller, J.; Henrichs, A.; Hensel, C.; Keil, M.; Knue, A.; Kohn, F.; Krieger, N.; Kroeninger, K.; Magradze, E.; Mann, A.; Meyer, J.; Morel, J.; Quadt, A.; Roe, A.; Shabalina, E.; Uhrmacher, M.; Weber, P.; Weingarten, J.] Univ Gottingen, Inst Phys 2, Gottingen, Germany.
[Albrand, S.; Antonelli, M.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; De Saintignon, P.; Delsart, P. A.; Donini, J.; Dzahini, D.; Hostachy, J. -Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Martin, Ph.; Polci, F.; Stark, J.; Sun, X.; Trocme, B.; Weydert, C.] Univ Grenoble 1, Lab Phys Subatom & Cosmol, Grenoble, France.
[Albrand, S.; Antonelli, M.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; De Saintignon, P.; Delsart, P. A.; Donini, J.; Dzahini, D.; Hostachy, J. -Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Martin, Ph.; Polci, F.; Stark, J.; Sun, X.; Trocme, B.; Weydert, C.] CNRS, IN2P3, Grenoble, France.
[Albrand, S.; Antonelli, M.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; De Saintignon, P.; Delsart, P. A.; Donini, J.; Dzahini, D.; Hostachy, J. -Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Martin, Ph.; Polci, F.; Stark, J.; Sun, X.; Trocme, B.; Weydert, C.] Inst Natl Polytech Grenoble, F-38031 Grenoble, France.
[Addy, T. N.; Harvey, A.; McFarlane, K. W.; Shin, T.; Vassilakopoulos, V. I.] Hampton Univ, Dept Phys, Hampton, VA 23668 USA.
[da Costa, J. Barreiro Guimaraes; Belloni, A.; Brandenburg, G. W.; Franklin, M.; Hurst, P.; Huth, J.; Jeanty, L.; Kagan, M.; Outschoorn, V. Martinez; Mercurio, K. M.; Mills, C.; Moed, S.; Morii, M.; Prasad, S.; Smith, B. C.; della Porta, G. Zevi] Harvard Univ, Lab Particle Phys & Cosmol, Cambridge, MA 02138 USA.
[Antonaki, A.; Childers, J. T.; Davygora, Y.; Dietzsch, T. A.; Foehlisch, F.; Geweniger, C.; Hanke, P.; Henke, M.; Khomicha, A.; Kluge, E. -E.; Lendermann, V.; Meiera, K.; Mueller, F.; Poddar, S.; Scharf, V.; Schultz-Coulon, H. -C.; Stamen, R.; Wessels, M.] Heidelberg Univ, Kirchhoff Inst Phys, Heidelberg, Germany.
[Radescu, V.; Schaetzel, S.; Schmitt, S.; Schoening, A.] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany.
[Kugelc, A.; Maennerc, R.; Schroer, N.] Heidelberg Univ, ZITI Inst Tech Informat, D-6800 Mannheim, Germany.
[Ohsugi, T.] Hiroshima Univ, Fac Sci, Hiroshima 730, Japan.
[Nagasaka, Y.] Hiroshima Inst Technol, Fac Appl Informat Sci, Hiroshima, Japan.
[Brunet, S.; Cwetanski, P.; Evans, H.; Gagnon, P.; Jain, V.; Luehring, F.; Marino, C. P.; Ogren, H.; Penwell, J.; Price, D.; Rust, D. R.; Whittington, D.; Yang, Y.; Zieminska, D.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
[Epp, B.; Jussel, P.; Kneringer, E.; Kuhn, D.; Rudolph, G.] Leopold Franzens Univ, Inst Astro & Teilchenphys, Innsbruck, Austria.
[Behera, P. K.; Limper, M.; Mallik, U.; Zaidan, R.] Univ Iowa, Iowa City, IA USA.
[Chen, C.; Cochran, J.; Dudziak, F.; Lebedev, A.; Mete, A. S.; Meyer, W. T.; Nelson, A.; Prell, S.; Rosenberg, E. I.; Ruiz-Martinez, A.; Yamamoto, K.] Iowa State Univ, Dept Phys & Astron, Ames, IA USA.
[Aleksandrov, I. N.; Barashkou, A.; Bardin, D. Y.; Bednyakov, V. A.; Boyko, I. R.; Budagov, I. A.; Chelkov, G. A.; Cheplakov, A.; Chepurnov, V. F.; Chizhov, M. V.; Dedovich, D. V.; Demichev, M.; Glonti, G. L.; Gostkin, M. I.; Grigalashvili, N.; Gusakov, Y.; Huseynov, N.; Kalinovskaya, L. V.; Kazarinov, M. Y.; Kekelidze, G. D.; Kharchenko, D.; Khovanskiy, N.; Khramov, E.; Kolesnikov, V.; Kotov, V. M.; Kruchonak, U.; Krumshteyn, Z. V.; Kukhtin, V.; Ladygin, E.; Lazarev, A. B.; Manjavidze, I. D.; Minashvili, I. A.; Mineev, M.; Nikolaev, K.; Olchevski, A. G.; Peshekhonov, V. D.; Romanov, V. M.; Rumyantsev, L.; Rusakovich, N. A.; Sadykov, R.; Sisakyan, A. N.; Topilin, N. D.; Vinogradov, V. B.; Zhemchugov, A.] JINR Dubna, Joint Inst Nucl Res, Dubna, Russia.
[Arai, Y.; Doi, Y.; Ekelof, T.; Haruyama, T.; Ikegami, Y.; Ikeno, M.; Ishii, K.; Ishino, M.; Iwasaki, H.; Kanzaki, J.; Kohriki, T.; Kondo, T.; Makida, Y.; Manabe, A.; Mitsui, S.; Morita, Y.; Murakami, K.; Nagano, K.; Nozaki, M.; Odaka, S.; Ohska, T. K.; Sasaki, O.; Sasaki, T.; Suzuki, Y.; Tanaka, S.; Terada, S.; Tojo, J.; Tokushuku, K.; Tsuno, S.; Unno, Y.; Yamada, M.; Yamamoto, A.; Yasu, Y.] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki, Japan.
[Akiyama, A.; Hayakawa, T.; Homma, Y.; Ichimiya, R.; Ishikawa, A.; Kawagoe, K.; King, M.; Kiyamura, H.; Kurashige, H.; Matsushita, T.; Miyazaki, K.; Nishiyama, T.; Ochi, A.; Okada, S.; Omachi, C.; Suita, K.; Takeda, H.; Tani, K.; Tokunaga, K.; Yamazaki, Y.] Kobe Univ, Grad Sch Sci, Kobe, Hyogo 657, Japan.
[Sasao, N.] Kyoto Univ, Fac Sci, Kyoto, Japan.
[Takashima, R.] Kyoto Univ, Kyoto 612, Japan.
[Antonelli, S.; Dova, M. T.; Monticelli, F.; Tripiana, M. F.] Consejo Nacl Invest Cient & Tecn, La Plata, Argentina.
[Antonelli, S.; Dova, M. T.; Monticelli, F.; Tripiana, M. F.] Univ Nacl La Plata, Inst Fis La Plata, La Plata, Argentina.
[Barton, A. E.; Borissov, G.; Bouhova-Thacker, E. V.; Brodbeck, T. J.; Catmore, J. R.; Chilingarov, A.; Davidson, R.; De Mora, L.; Fox, H.; Henderson, R. C. W.; Hughes, G.; Jones, R. W. L.; Kartvelishvili, V.; Long, R. E.; Love, P. A.; Ratoff, P. N.; Sloan, T. J.; Smizanska, M.; Walder, J.] Univ Lancaster, Dept Phys, Lancaster, England.
[Bianco, M.; Cataldi, G.; Chiodini, G.; Crupi, R.; Gorini, E.; Grancagnolo, F.; Guida, A.; Perrino, R.; Primavera, M.; Spagnolo, S.; Ventura, A.] Univ Salento, Ist Nazl Fis Nucl, Sez Lecce, Lecce, Italy.
[Bianco, M.; Crupi, R.; Gorini, E.; Guida, A.; Spagnolo, S.; Ventura, A.] Univ Salento, Dipartimento Fis, Lecce, Italy.
[Allport, P. P.; Austin, N.; Burdin, S.; D'Onofrio, M.; Dervan, P.; Greenshaw, T.; Gwilliam, C. B.; Hayward, H. S.; Houlden, M. A.; Jackson, J. N.; Jones, T. J.; King, B. T.; Klein, M.; Klein, U.; Kluge, T.; Kretzschmar, J.; Laycock, P.; Maxfield, J.; Mehta, A.; Migas, S.; Prichard, P. M.; Sellers, G.; Waller, P.; Wrona, B.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 3BX, Merseyside, England.
[Cindro, V.; Dolenc, I.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.; Tykhonov, A.] Univ Ljubljana, Ljubljana, Slovenia.
[Cindro, V.; Dolenc, I.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.; Tykhonov, A.] Jozef Stefan Inst, Dept Phys, Ljubljana, Slovenia.
[Adragna, P.; Bona, M.; Carter, A. A.; Cerrito, L.; Eisenhandler, E.; Ellis, K.; Landon, M. P. J.; Lloyd, S. L.; Morin, J.; Morris, J. D.; Piccaro, E.; Poll, J.; Rizvi, E.; Salamanna, G.; Stevenson, K.; Castanheira, M. Teixeira Dias; Traynor, D.; Wiglesworth, C.] Queen Mary Univ London, Dept Phys, London, England.
[Alam, M. A.; Berry, T.; Boisvert, V.; Boorman, G.; Cooper-Smith, N. J.; Cowan, G.; Edwards, C. A.; George, S.; Goncalo, R.; Hayden, D.; Misiejuk, A.; Rose, M.; Strong, J. A.; Teixeira-Dias, P.] Royal Holloway Univ London, Dept Phys, Surrey, England.
[Baker, S.; Bernat, P.; Bieniek, S. P.; Boeser, S.; Butterworth, J. M.; Byatt, T.; Campanelli, M.; Christidi, I. A.; Cooper, B. D.; Davison, A. R.; Dean, S.; Jansen, E.; Jones, T. W.; Konstantinidis, N.; Monk, J.; Nash, M.; Nurse, E.; Prabhu, R.; Richards, A.; Robinson, J. E. M.; Sherwood, P.; Simmons, B.; Taylor, C.; Waugh, B. M.; Wijeratne, P. A.] UCL, Dept Phys & Astron, London, England.
[Beau, T.; Bordoni, S.; Calderini, G.; Cavalleri, P.; Chareyre, E.; De Cecco, S.; Derue, F.; Imbault, D.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Lellouch, J.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Trinh, T. N.; Vannucci, F.; Yuan, L.] CNRS, IN2P3, Paris, France.
[Beau, T.; Bordoni, S.; Calderini, G.; Cavalleri, P.; Chareyre, E.; De Cecco, S.; Derue, F.; Imbault, D.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Lellouch, J.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Trinh, T. N.; Vannucci, F.; Yuan, L.] Univ Paris Diderot, Paris, France.
[Beau, T.; Bordoni, S.; Calderini, G.; Cavalleri, P.; Chareyre, E.; De Cecco, S.; Derue, F.; Imbault, D.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Lellouch, J.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Trinh, T. N.; Vannucci, F.; Yuan, L.] UPMC, Lab Phys Nucl & & Hautes Energies, Paris, France.
[Akesson, T. P. A.; Alonso, A.; Bocchetta, S. S.; Hedberg, V.; Jarlskog, G.; Lundberg, B.; Lytken, E.; Meirose, B.; Mjornmark, J. U.; Smirnova, O.] Lund Univ, Fysiska Inst, Lund, Sweden.
[Barreiro, F.; Cantero, J.; De la Torre, H.; Del Peso, J.; Glasman, C.; Labarga, L.; Lagouri, T.; Merino, J. Llorente; March, L.; Nebot, E.; Rodier, S.; Terron, J.] Univ Autonoma Madrid, Dept Fis Teor C 15, Madrid, Spain.
[Aharrouche, M.; Arnaez, O.; Bendel, M.; Blum, W.; Buescher, V.; Eckweiler, S.; Edmonds, K.; Ellinghaus, F.; Ertel, E.; Fiedler, F.; Fleckner, J.; Goeringer, C.; Handel, C.; Hohlfeld, M.; Ji, W.; Kawamura, G.; Kleinknecht, K.; Koenig, S.; Koepke, L.; Lungwitz, M.; Masetti, L.; Meyer, C.; Moreno, D.; Neusiedl, A.; Rieke, S.; Sander, H. G.; Schaefer, U.; Schmitt, C.; Schroeder, C.; Tapprogge, S.; Anh, T. Vu] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany.
[Almond, J.; Brown, G.; Chavda, V.; Cox, B. E.; Da Via, C.; Duerdoth, I. P.; Forti, A.; Foster, J. M.; Howarth, J.; Hughes-Jones, R. E.; Ibbotson, M.; Jones, G.; Keates, J. R.; Kelly, M.; Kolya, S. D.; Lane, J. L.; Loebinger, F. K.; Marshall, R.; Martyniuk, A. C.; Marx, M.; Masik, J.; Miyagawa, P. S.; Oh, A.; Owen, M.; Pater, J. R.; Pilkington, A. D.; Plano, W. G.; Schwanenberger, C.; Snow, S. W.; Watts, S.; Yang, U. K.] Univ Manchester, Sch Phys & Astron, Manchester, Lancs, England.
[Aoun, S.; Arfaoui, S.; Bee, C. P.; Benchouk, C.; Bernardet, K.; Bousson, N.; Clemens, J. C.; Coadou, Y.; Delpierre, P.; Djama, F.; Etienne, F.; Feligioni, L.; Henry-Couannier, F.; Hoffmann, D.; Hubaut, F.; Knoops, E. B. F. G.; Le Guirriec, E.; Li, B.; Li, S.; Monnier, E.; Odier, J.; Petit, E.; Pralavorio, P.; Qian, Z.; Rozanov, A.; Talby, M.; Tannoury, N.; Tisserant, S.; Toth, J.; Touchard, F.; Vacavant, L.] Aix Marseille Univ, CPPM, Marseille, France.
[Aoun, S.; Arfaoui, S.; Bee, C. P.; Benchouk, C.; Bernardet, K.; Bousson, N.; Clemens, J. C.; Coadou, Y.; Delpierre, P.; Djama, F.; Etienne, F.; Feligioni, L.; Henry-Couannier, F.; Hoffmann, D.; Hubaut, F.; Knoops, E. B. F. G.; Le Guirriec, E.; Li, B.; Li, S.; Monnier, E.; Odier, J.; Petit, E.; Pralavorio, P.; Qian, Z.; Rozanov, A.; Talby, M.; Tannoury, N.; Tisserant, S.; Toth, J.; Touchard, F.; Vacavant, L.] CNRS, IN2P3, Marseille, France.
[Brau, B.; Colon, G.; Dallapiccola, C.; Meade, A.; Moyse, E. J. W.; Thompson, E. N.; van Eldik, N.; Willocq, S.; Woudstra, M. J.] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA.
[Belanger-Champagne, C.; Chapleau, B.; Cheatham, S.; Corriveau, F.; Dobbs, M.; Dufour, M. -A.; Guler, H.; Klemetti, M.; Robertson, S. H.; Rios, C. Santamarina; Schram, M.; Vachon, B.; Warburton, A.] McGill Univ, Dept Phys, Montreal, PQ, Canada.
[Barberio, E. L.; Davey, W.; Davidson, N.; Felzmann, C. U.; Kubota, T.; Limosani, A.; Moorhead, G. F.; Phan, A.; Sevior, M. E.; Shao, Q. T.; Taylor, G. N.; White, M. J.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia.
[Armbruster, A. J.; Chapman, J. W.; Cirilli, M.; Dai, T.; Diehl, E. B.; Eppig, A.; Ferretti, C.; Goldfarb, S.; Harper, D.; Levin, D.; Li, X.; Liu, H.; Liu, J. B.; Mc Kee, S. P.; Neal, H. A.; Panikashvili, N.; Purdham, J.; Qian, J.; Scheirich, D.; Thun, R. P.; Walch, S.; Wilson, A.; Wu, Y.; Yang, H.; Zhou, B.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA.
[Abolins, M.; Arabidze, G.; Brock, R.; Bromberg, C.; Caughron, S.; Di Mattia, A.; Fedorko, W.; Hauser, R.; Heim, S.; Holzbauer, J. L.; Huston, J.; Koll, J.; Kraus, J.; Linnemann, J. T.; Mangeard, P. S.; Martin, B.; Miller, R. J.; Pope, B. G.; Ryan, P.; Schwienhorst, R.; Tollefson, K.; Zhang, H.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
[Acerbi, E.; Alessandria, F.; Alimonti, G.; Andreazza, A.; Annovi, A.; Baccaglioni, G.; Battistoni, G.; Besana, M. I.; Broggi, F.; Carminati, L.; Cavalli, D.; Costa, G.; Dell'Asta, L.; Fanti, M.; Favareto, A.; Giugni, D.; Koletsou, I.; Laria, T.; Lazzaro, A.; Mandelli, L.; Mazzanti, M.; Meroni, C.; Montesano, S.; Perini, L.; Pizio, C.; Ragusa, F.; Resconi, S.; Rivoltella, G.; Rossi, L.; Sorbi, M.; Tartarellia, G. F.; Troncon, C.; Turra, R.; Vegni, G.; Volpini, G.] Univ Milan, INFN, Sez Milano, Milan, Italy.
[Acerbi, E.; Andreazza, A.; Annovi, A.; Besana, M. I.; Carminati, L.; Dell'Asta, L.; Fanti, M.; Favareto, A.; Lazzaro, A.; Montesano, S.; Perini, L.; Pizio, C.; Ragusa, F.; Rivoltella, G.; Rossi, L.; Sorbi, M.; Turra, R.; Vegni, G.] Univ Milan, Dipartimento Fis, Milan, Italy.
[Bogouch, A.; Harkusha, S.; Kulchitsky, Y.; Kurochkin, Y. A.; Satsounkevitch, I.; Tsiareshka, P. V.] Natl Acad Sci Belarus, BI Stepanov Inst Phys, Minsk, Byelarus.
[Gilewsky, V.; Kuzhir, P.; Rumiantsev, V.; Starovoitov, P.; Yanush, S.] Natl Sci & Educ Ctr Particle & High Energy Phys, Minsk, Byelarus.
[Taylor, F. E.] MIT, Dept Phys, Cambridge, MA 02139 USA.
[Azuelos, G.; Banerjee, P.; Bouchami, J.; Davies, M.; Ferland, J.; Gingrich, D. M.; Gutierrez, A.; Kantserov, V. A.; Lebel, C.; Leroy, C.; Goia, J. A. Macana; Martin, J. P.; Mehdiyev, R.; Oakham, F. G.; Savard, P.; Scallon, O.; Vetterli, M. C.] Univ Montreal, Grp Particle Phys, Montreal, PQ, Canada.
[Baranov, S. P.; Gavrilenko, I. L.; Komar, A. A.; Mashinistov, R.; Mouraviev, S. V.; Nechaeva, P. Yu.; Shmeleva, A.; Snesarev, A. A.; Sulin, V. V.] Acad Sci, PN Lebedev Phys Inst, Moscow, Russia.
[Artamonov, A.; Gorbounov, P. A.; Khovanskiy, V.; Shatalov, P. B.; Tsukerman, I. I.] Inst Theoret & Expt Phys ITEP, Moscow, Russia.
[Belotskiy, K.; Bondarenko, V. G.; Bulekov, O.; Dolgoshein, B. A.; Khodinov, A.; Morozov, S. V.; Romaniouk, A.; Smirnov, S. Yu.; Soldatov, E.] Moscow Engn & Phys Inst MEPhI, Moscow, Russia.
[Gladilin, L. K.; Grishkevich, Y. V.; Kramarenko, V. A.; Rud, V. I.; Sivoklokov, S. Yu.; Smirnova, L. N.] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia.
[Adomeit, S.; Akimov, A. V.; Biebel, O.; Calfayan, P.; de Graat, J.; Deile, M.; Duckeck, G.; Ebke, J.; Elmsheuser, J.; Engl, A.; Galea, C.; Genest, M. H.; Hertenberger, R.; Kennedy, J.; Kummer, C.; Legger, F.; Lichtnecker, M.; Mameghani, R.; Mueller, T. A.; Nunnemann, T.; Rauscher, F.; Reznicek, P.; Ruckert, B.; Sanders, M. P.; Schaile, D.; Schieck, J.; Serfon, C.; Staude, A.; Walker, R.; Will, J. Z.; Zhuang, X.] Univ Munich, Fac Phys, Munich, Germany.
[Aderholz, M.; Barillari, T.; Beimforde, M.; Bethke, S.; Capriotti, D.; Cortiana, G.; Dannheim, D.; Dubbert, J.; Ehrich, T.; Flowerdew, M. J.; Giovannini, P.; Goettfert, T.; Groh, M.; Haefner, P.; Hauff, D.; Jantsch, A.; Kaiser, S.; Kiryunin, A. E.; Kluth, S.; Kortner, O.; Kortner, S.; Kotov, S.; Kroha, H.; Lutz, G.; Macchiolo, A.; Manz, A.; Menke, S.; Mohrdieck-Moeck, S.; Moser, H. G.; Nisius, R.; Oberlack, H.; Pospelov, G. E.; Potrap, I. N.; Rauter, E.; Richter, R.; Salihagic, D.; Sandstroem, R.; Schacht, P.; Seuster, R.; Stonjek, S.; von der Schmitt, H.; von Loeben, J.; Weigell, P.; Zhuravlov, V.] Werner Heisenberg Inst, Max Planck Inst Phys, Munich, Germany.
[Shimojima, M.; Tanaka, Y.] Nagasaki Inst Appl Sci, Nagasaki, Japan.
[Hasegawa, S.; Itoh, Y.; Morvaj, L.; Ohshima, T.; Okumura, Y.; Shichi, H.; Sugimoto, T.; Takahashi, Y.; Tomoto, M.; Wakabayashi, J.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648601, Japan.
[Aloisio, A.; Alviggi, M. G.; Canale, V.; Capasso, L.; Carlino, G.; Cevenini, F.; Chiefari, G.; Con-Venti, F.; De Asmundis, R.; Della Pietra, M.; della Volpe, D.; Doria, A.; Giordano, R.; Iengo, P.; Izzo, V.; Merola, L.; Musto, E.; Patricelli, S.; Rossi, E.; Sekhniaidze, G.] Univ Naples Federico II, Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy.
[Aloisio, A.; Alviggi, M. G.; Canale, V.; Capasso, L.; Cevenini, F.; Chiefari, G.; della Volpe, D.; Giordano, R.; Iengo, P.; Merola, L.; Musto, E.; Patricelli, S.; Rossi, E.] Univ Naples Federico II, Dipartimento Sci Fis, Naples, Italy.
[Gorelov, I.; Hoeferkamp, M. R.; Metcalfe, J.; Seidel, S. C.; Toms, K.; Wang, R.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Chelstowska, M. A.; Consonni, M.; De Groot, N.; Filthaut, F.; Klok, P. F.; Konig, A. C.; Koetsveld, F.; Raas, M.; Salvucci, A.; Timmermans, C. J. W. P.] Radboud Univ Nijmegen, Inst Math Astrophys & Particle Phys, NL-6525 ED Nijmegen, Netherlands.
[Bentvelsen, S.; Bobbink, J.; Bos, K.; Boterenbrood, H.; Colijn, A. P.; Daum, C.; de Jong, P.; De Nooij, L.; Doxiadis, A. D.; Ferrari, P.; Garitaonandia, H.; Geerts, D. A. A.; Gosselink, M.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Kayl, M. S.; Klous, S.; Kluit, P.; Koffeman, E.; Koutsman, A.; Lee, H.; Linde, F.; Luijckx, G.; Massaro, G.; Mechnich, J.; Muijs, A.; Mussche, I.; Ottersbach, J. P.; Peters, O.; Reichold, A.; Rijpstra, M.; Ruckstuhl, N.; Snuverink, J.; Ta, D.; Tsiakiris, M.; Turlay, E.; van der Graaf, H.; van der Kraaij, E.; van der Leeuw, R.; van der Poel, E.; Van Eijk, B.; van Kesteren, Z.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Vreeswijk, M.] Univ Amsterdam, Amsterdam, Netherlands.
[Bentvelsen, S.; Bobbink, J.; Bos, K.; Boterenbrood, H.; Colijn, A. P.; Daum, C.; de Jong, P.; De Nooij, L.; Doxiadis, A. D.; Ferrari, P.; Garitaonandia, H.; Geerts, D. A. A.; Gosselink, M.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Kayl, M. S.; Klous, S.; Kluit, P.; Koffeman, E.; Koutsman, A.; Lee, H.; Linde, F.; Luijckx, G.; Massaro, G.; Mechnich, J.; Muijs, A.; Mussche, I.; Ottersbach, J. P.; Peters, O.; Reichold, A.; Rijpstra, M.; Ruckstuhl, N.; Snuverink, J.; Ta, D.; Tsiakiris, M.; Turlay, E.; van der Graaf, H.; van der Kraaij, E.; van der Leeuw, R.; van der Poel, E.; Van Eijk, B.; van Kesteren, Z.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Vreeswijk, M.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
[Calkins, R.; Chakraborty, D.; de Lima, J. G. Rocha; Suhr, C.; Zutshi, V.] Univ Illinois, Dept Phys, De Kalb, IL USA.
[Beloborodova, O.; Bobrovnikov, V. B.; Bogdanchikov, A.; Kazanin, V. A.; Kolachev, G. M.; Korol, A.; Malyshev, V.; Maslennikov, A. L.; Maximov, D. A.; Orlov, I.; Peleganchuk, S. V.; Schamov, A. G.; Skovpen, K.; Soukharev, A.; Talyshev, A.; Tikhonov, Y. A.; Zaytsev, A.] Budker Inst Nucl Phys BINP, Novosibirsk, Russia.
[Budick, B.; Casadei, D.; Cranmer, K.; Djilkibaev, R.; van Huysduynen, L. Hooft; Konoplich, R.; Krasznahorkay, A.; Lewis, G. H.; Mincer, A. I.; Nemethy, P.; Neves, R. M.; Prokofiev, K.; Shibata, A.; Zhao, L.] NYU, Dept Phys, New York, NY 10003 USA.
[Fernando, W.; Fisher, M. J.; Gan, K. K.; Kagan, H.; Kass, R. D.; Moss, J.; Rahimi, A. M.; Strang, M.] Ohio State Univ, Columbus, OH 43210 USA.
[Nakano, I.] Okayama Univ, Fac Sci, Okayama 700, Japan.
[Abbott, B.; Gutierrez, P.; Huang, G. S.; Jana, D. K.; Marzin, A.; Meera-Lebbai, R.; Saleem, M.; Severini, H.; Skubic, P.; Snow, J.; Strauss, M.] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA.
[Abi, B.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA.
[Hamal, P.; Kocnar, A.; Nozka, L.] Palacky Univ, RCPTM, CR-77147 Olomouc, Czech Republic.
[Brau, J. E.; Potter, C. T.; Ptacek, E.; Reinsch, A.; Robinson, M.; Searcy, J.; Shamim, M.; Sinev, N. B.; Strom, D. M.; Torrence, E.] Univ Oregon, Ctr High Energy Phys, Eugene, OR 97403 USA.
[Abreu, H.; Andari, N.; Anduaga, X. S.; Arnault, C.; Auge, E.; Barrillon, P.; Benoit, M.; Binet, S.; Blanchard, J. -B.; Bourdarios, C.; Breton, D.; Collard, C.; De la Taille, C.; De Regie, J. B. De Vivie; Diglio, S.; Duflot, L.; Escalier, M.; Falou, A. C.; Fayard, L.; Fournier, D.; Grivaz, J. -F.; Heller, M.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Idarraga, J.; Kado, M.; Lounis, A.; Makovec, N.; Matricon, P.; Niedercorn, F.; Poggioli, L.; Puzo, P.; Renaud, A.; Rousseau, D.; Ruan, X.; Rybkin, G.; Sauvan, J. B.; Schaarschmidt, J.; Schaffer, A. C.; Serin, L.; Simion, S.; Tanaka, R.; Veillet, J. J.; Vukotic, I.; Wicek, F.; Zerwas, D.; Zhang, Z.] Univ Paris 11, LAL, Orsay, France.
[Abreu, H.; Andari, N.; Anduaga, X. S.; Arnault, C.; Auge, E.; Barrillon, P.; Benoit, M.; Binet, S.; Blanchard, J. -B.; Bourdarios, C.; Breton, D.; Collard, C.; De la Taille, C.; De Regie, J. B. De Vivie; Diglio, S.; Duflot, L.; Escalier, M.; Falou, A. C.; Fayard, L.; Fournier, D.; Grivaz, J. -F.; Heller, M.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Idarraga, J.; Kado, M.; Lounis, A.; Makovec, N.; Matricon, P.; Niedercorn, F.; Poggioli, L.; Puzo, P.; Renaud, A.; Rousseau, D.; Ruan, X.; Rybkin, G.; Sauvan, J. B.; Schaarschmidt, J.; Schaffer, A. C.; Serin, L.; Simion, S.; Tanaka, R.; Veillet, J. J.; Vukotic, I.; Wicek, F.; Zerwas, D.; Zhang, Z.] CNRS, IN2P3, F-91405 Orsay, France.
[Hanagaki, K.; Hirose, M.; Meguro, T.; Nomachi, M.; Sugaya, Y.] Osaka Univ, Grad Sch Sci, Osaka, Japan.
[Bugge, L.; Buran, T.; Cameron, D.; Czyczula, Z.; Gjelsten, B. K.; Lund, E.; Ould-Saada, F.; Pajchel, K.; Pylypchenko, Y.; Read, A. L.; Rohne, O.; Samset, B. H.; Stapnes, S.; Strandlie, A.; Taga, A.] Univ Oslo, Dept Phys, Oslo, Norway.
[Abdesselam, A.; Apolle, R.; Barr, A. J.; Beauchemin, P. H.; Boddy, C. R.; Buchanan, J.; Buckingham, R. M.; Buira-Clark, D.; Coe, P.; Coniavitis, E.; Cooper-Sarkar, A. M.; Davies, E.; Dehchar, M.; Doglioni, C.; Farrington, S. M.; Gallas, E. J.; Gilbert, L. M.; Gwenlan, C.; Hawes, B. M.; Holmes, A.; Horton, K.; Howell, D. F.; Huffman, T. B.; Issever, C.; Karagoz, M.; King, R. S. B.; Kirsch, G. P.; Kundu, N.; Larner, A.; Lau, W.; Lavorato, A.; Lewis, A.; Livermore, S. S. A.; Loken, J.; Mattravers, C.; Mermod, P.; Nickerson, R. B.; Pinder, A.; Ryder, N. C.; Short, D.; Tseng, J. C. -L.; Vickey, T.; Viehhauser, G. H. A.; Weidberg, A. R.; Whitehead, S. R.; Wooden, G.] Univ Oxford, Dept Phys, Oxford, England.
[Bellomo, M.; Cambiaghi, M.; Conta, C.; Ferrari, R.; Franchino, S.; Fraternali, M.; Gaudio, G.; Livan, M.; Negri, A.; Polesello, G.; Rebuzzi, D. M.; Rimoldi, A.; Uslenghi, M.; Vercesi, V.] Univ Pavia, Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy.
[Cambiaghi, M.; Conta, C.; Franchino, S.; Fraternali, M.; Livan, M.; Negri, A.; Rebuzzi, D. M.; Rimoldi, A.; Uslenghi, M.] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy.
[Alison, J.; Degenhardt, J.; Donega, M.; Dressnandt, N.; Fratina, S.; Hance, M.; Hines, E.; Hong, T. M.; Jackson, B.; Kroll, J.; Kunkle, J.; LeGeyt, B. C.; Lipeles, E.; Martin, F. F.; Olivito, D.; Ospanov, R.; Reece, R.; Stahlman, J.; Thomson, E.; Wagner, P.; Williams, H. H.] Univ Penn, Dept Phys, Philadelphia, PA 19104 USA.
[Fedin, O. L.; Gratchev, V.; Grebenyuk, O. G.; Maleev, V. P.; Nesterov, S. Y.; Ryabov, Y. F.; Schegelsky, V. A.; Sedykh, E.; Seliverstov, D. M.; Zalite, Yo. K.] Petersburg Nucl Phys Inst, Gatchina, Russia.
[Bertolucci, F.; Cascella, M.; Cavasinni, V.; Crescioli, F.; Del Prete, T.; Dotti, A.; Francavilla, P.; Giangiobbe, V.; Lupi, A.; Mazzoni, E.; Roda, C.; Sarri, F.; Zenonos, Z.] Univ Pisa, Ist Nazl Fis Nucl, Sez Pisa, I-56100 Pisa, Italy.
[Bertolucci, F.; Cascella, M.; Cavasinni, V.; Crescioli, F.; Del Prete, T.; Dotti, A.; Francavilla, P.; Giangiobbe, V.; Lupi, A.; Mazzoni, E.; Roda, C.; Sarri, F.; Zenonos, Z.] Univ Pisa, Dipartimento Fis E Fermi, Pisa, Italy.
[Boudreau, J.; Boulahouache, C.; Cleland, W.; Kittelmann, T.; Mueller, J.; Paolone, V.; Prieur, D.; Savinov, V.; Tsulaia, V.; Wendler, S.; Yoosoofmiya, R.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
[Aguilar-Saavedra, J. A.] Univ Granada, CAFPE, Granada, Spain.
[Aguilar-Saavedra, J. A.] Univ Granada, Dept Fis Teor & Cosmos, Granada, Spain.
[Aguilar-Saavedra, J. A.; Amorim, A.; Anulli, F.; Carvalho, J.; Castro, N. F.; Conde Muino, P.; Wemans, A. Do Valle; Fiolhais, M. C. N.; Gomes, A.; Jorge, P. M.; Lopes, L.; Miguens, J. Machado; Magalhaes Martins, P. J.; Maio, A.; Maneira, J.; Morais, A.; Oliveira, M.; Onofre, A.; Palma, A.; Pina, J.; Pinto, B.; Santos, H.; Saraiva, J. G.; Silva, J.; Soares, M.; Veloso, F.; Wolters, H.; Yuan, L.] Lab Instrumentacao & Fis Expt Particulas LIP, Lisbon, Portugal.
[Chudoba, J.; Gallus, P.; Gunther, J.; Hruska, I.; Juranek, V.; Kepka, O.; Kupco, A.; Kus, V.; Kvasnicka, O.; Lipinsky, L.; Lokajicek, M.; Marcisovsky, M.; Mikestikova, M.; Myska, M.; Nemecek, S.; Panuskova, M.; Ruzicka, P.; Schovancova, J.; Sicho, P.; Staroba, P.; Svatos, M.; Tasevsky, M.; Tic, T.; Valenta, J.; Vrba, V.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
[Augsten, K.; Holy, T.; Horazdovsky, T.; Hubacek, Z.; Jakubek, J.; Kohout, Z.; Kral, V.; Krejci, F.; Pospisil, S.; Simak, V.; Slavicek, T.; Smolek, K.; Sodomka, J.; Solar, M.; Solc, J.; Sopko, V.; Sopko, B.; Stekl, I.; Turecek, D.; Vacek, V.; Vlasak, M.; Vokac, P.] Czech Tech Univ, Prague, Czech Republic.
[Ammosov, V. V.; Borisov, A.; Bozhko, N. I.; Denisov, S. P.; Fakhrutdinov, R. M.; Fenyuk, A. B.; Gapienko, V. A.; Golovnia, S. N.; Gorokhov, S. A.; Goryachev, V. N.; Gushchin, V. N.; Ivashin, A. V.; Kabachenko, V. V.; Karyukhin, A. N.; Kholodenko, A. G.; Kiver, A. M.; Kopikov, S. V.; Koreshev, V.; Korotkov, V. A.; Kozhin, A. S.; Larionov, A. V.; Levitski, M. S.; Minaenko, A. A.; Mitrofanov, G. Y.; Moisseev, A. M.; Myagkov, A. G.; Nikolaenko, V.; Pleskach, A. V.; Ryadovikov, V.; Solovyanov, O. V.; Starchenko, E. A.; Sviridov, Yu. M.; Vorobiev, A. P.; Zaets, V. G.; Zaitsev, A. M.; Zenin, A. V.; Zenin, O.; Zmouchko, V. V.] Inst High Energy Phys, State Res Ctr, Protvino, Russia.
[Adye, T.; Apolle, R.; Baines, J. T.; Barnett, B. M.; Botterill, D.; Burke, S.; Clifft, R. W.; Davies, E.; Dewhurst, A.; Emeliyanov, D.; Fisher, S. M.; Gallop, B. J.; Gee, C. N. P.; Gillman, A. R.; Greenfield, D.; Haywood, S. J.; Kirk, J.; Mattravers, C.; McCubbin, N. A.; McMahon, S. J.; Middleton, R. P.; Murray, W. J.; Nash, M.; Norton, P. R.; Phillips, P. W.; Sankey, D. P. C.; Scott, W. G.; Strube, J.; Tyndel, M.; Weber, M.; Wickens, F. J.; Wielers, M.] Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England.
[Benslama, K.; Ju, X.; Ming, Y.; Ortega, E. O.; Smit, G. V. Ybeles] Univ Regina, Dept Phys, Regina, SK S4S 0A2, Canada.
[Tanaka, S.] Ritsumeikan Univ, Kusatsu, Shiga, Japan.
[Artoni, G.; Bagnaia, P.; Borroni, S.; Caloi, R.; Ciapetti, G.; D'Orazio, A.; De Pedis, D.; De Salvo, A.; Dionisi, C.; Falciano, S.; Gentile, S.; Giagu, S.; Giunta, M.; Lacava, F.; Lo Sterzo, F.; Luci, C.; Luminaria, L.; Maiani, C.; Marzanoa, F.; Mastrandrea, P.; Mirabelli, G.; Nisati, A.; Pasqualucci, E.; Petrolo, E.; Pontecorvo, L.; Rescigno, M.; Rosati, S.; Tehrani, F. Safai; Sidoti, A.; Camillocci, E. Solfaroli; Spila, F.; Valente, P.; Vari, R.; Veneziano, S.; Zanello, L.] Univ Roma La Sapienza, Ist Nazl Fis Nucl, Sez Roma 1, Rome, Italy.
[Artoni, G.; Bagnaia, P.; Bini, C.; Borroni, S.; Caloi, R.; Ciapetti, G.; D'Orazio, A.; Dionisi, C.; Gentile, S.; Giagu, S.; Giunta, M.; Lacava, F.; Lo Sterzo, F.; Luci, C.; Mastrandrea, P.; Rosati, S.; Tehrani, F. Safai; Sidoti, A.; Camillocci, E. Solfaroli; Spila, F.; Zanello, L.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[Aielli, G.; Camarri, P.; Cardarelli, R.; Cattani, G.; Di Ciaccio, A.; Di Nardo, R.; Di Simone, A.; Liberti, B.; Marchese, F.; Salamon, A.; Santonico, R.] Univ Roma Tor Vergata, Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy.
[Aielli, G.; Camarri, P.; Cattani, G.; Di Ciaccio, A.; Di Nardo, R.; Di Simone, A.; Marchese, F.; Santonico, R.] Univ Roma Tor Vergata, Dipartimento Fis, I-00173 Rome, Italy.
[Bacci, C.; Baroncelli, A.; Biglietti, M.; Bini, C.; Branchini, P.; Ceradini, F.; Di Luise, S.; Farilla, A.; Graziani, E.; Iodicea, M.; Orestano, D.; Passeri, A.; Pastore, F.; Petrucci, F.; Ruggieria, F.; Spiriti, E.; Stanescu, C.] Univ Roma Tre, INFN, Sez Roma Tre, Rome, Italy.
[Bacci, C.; Biglietti, M.; Ceradini, F.; Di Luise, S.; Orestano, D.; Pastore, F.; Petrucci, F.; Ruggieria, F.] Univ Roma Tre, Dipartimento Fis, Rome, Italy.
[Benchekroun, D.; Chafaq, A.; Gouighri, M.; Hoummada, A.; Lablak, S.] Reseau Univ Phys Hautes Energies Univ Hassan II, Fac Sci Ain Chock, Casablanca, Morocco.
[Ghazlane, H.] Ctr Natl Energie Sci Tech Nucl, Rabat, Morocco.
[Cherkaoui El Moursli, R.; El Kacimi, M.; Goujdamic, D.] Univ Cadi Ayyad, Dept Phys, Fac Sci Semlalia, Marrakech 40000, Morocco.
[Derkaoui, J. E.; Ouchrif, M.] LPTPM, Oujda, Morocco.
[Derkaoui, J. E.; Ouchrif, M.] Univ Mohamed Premier, Fac Sci, Oujda, Morocco.
Univ Mohammed 5, Fac Sci, Rabat, Morocco.
[Bachacou, H.; Bauer, F.; Besson, N.; Bolnet, N. M.; Boonekamp, M.; Chevalier, L.; Ernwein, J.; Etienvre, A. I.; Formica, A.; Gauthier, L.; Giraud, P. F.; Guyot, C.; Hassani, S.; Kozanecki, W.; Lancon, E.; Laporte, J. F.; Le Menedeu, E.; Legendre, M.; Mansoulie, B.; Meyer, J. -P.; Morange, N.; Mountricha, E.; Hong, V. Nguyen Thi; Nicolaidou, R.; Ouraou, A.; Pomarede, D. M.; Resende, B.; Royon, C. R.; Schune, Ph.; Schwindling, J.; Simard, O.; Virchaux, M.; Xu, C.; Yu, J.] CEA Saclay Commissariat Energie Atom, DSM IRFU Inst Rech Lois Fondamentales Univ, Gif Sur Yvette, France.
[Bangert, A.; Chouridou, S.; Damiani, D. S.; Dubbs, T.; Fowler, K.; Grillo, A. A.; Hare, G. A.; Litke, A. M.; Lockman, W. S.; Manning, P. M.; Mitrevski, J.; Nielsen, J.; Sadrozinski, H. F. -W.; Schumm, B. A.; Seiden, A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Forbush, D. A.; Goussiou, A. G.; Griffiths, J.; Harris, O. M.; Kuykendall, W.; Lubatti, H. J.; Mockett, P.; Policicchio, A.; Rothberg, J.; Ventura, D.; Verducci, M.; Wang, J. C.; Watts, G.; Zhao, T.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Booth, C. N.; Costanzo, D.; Donszelmann, T. Cuhadar; Dawson, I.; Duxfield, R.; Hodgkinson, M. C.; Hodgson, P.; Johansson, P.; Korolkova, E. V.; Mayne, A.; Mcfayden, J. A.; Nicolas, L.; Owen, S.; Paganis, E.; Suruliz, K.; Tovey, D. R.; Tua, A.; Xu, D.] Univ Sheffield, Dept Phys & Astron, Sheffield, S Yorkshire, England.
[Hasegawa, Y.; Ohshita, H.; Takeshita, T.] Shinshu Univ, Dept Phys, Nagano, Japan.
[Buchholz, P.; Czirr, H.; Fleck, I.; Gaur, B.; Grybel, K.; Holder, M.; Ibragimov, I.; Rammes, M.; Sipica, V.; Stahl, T.; Ziolkowski, M.] Univ Siegen, Fachbereich Phys, D-5900 Siegen, Germany.
[Dawe, E.; Godfrey, J.; Komaragiri, J. R.; O'Neil, D. C.; Petteni, M.; Schouten, D.; Stelzer, B.; Trottier-McDonald, M.; Vetterli, M. C.] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada.
[Aracena, I.; Barklow, T.; Bartoldus, R.; Bawa, H. S.; Butler, B.; Cogan, J. G.; Gao, Y. S.; Grenier, P.; Haas, A.; Hansson, P.; Horn, C.; Jackson, P.; Kenney, C. J.; Kim, P. C.; Kocian, M.; Koi, T.; Lowe, A. J.; Miller, D. W.; Mount, R.; Nelson, S.; Nelson, T. K.; Salnikov, A.; Schwartzman, A.; Silverstein, D.; Smith, D.; Strauss, E.; Su, D.; Wilson, M. G.; Wittgen, M.; Young, C.] SLAC Natl Accelerator Lab, Stanford, CA USA.
[Batkova, L.; Blazek, T.; Federic, P.; Pecsy, M.; Stavina, P.; Sykora, I.; Tokar, S.; Zenis, T.] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia.
[Bruncko, D.; Ferencei, J.; Kladiva, E.; Seman, M.; Strizenec, P.] Slovak Acad Sci, Inst Expt Phys, Dept Subnuclear Phys, Kosice 04353, Slovakia.
[Aurousseau, M.] Univ Johannesburg, Dept Phys, Johannesburg, South Africa.
[Leney, K. J. C.; Vickey, T.] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa.
[Asman, B.; Bohm, C.; Clement, C.; Eriksson, D.; Gellerstedta, K.; Hellman, S.; Hidvegi, A.; Holmgren, S. O.; Johansen, M.; Johansson, K. E.; Jonand, K.; Lesser, J.; Lundberg, J.; Milstead, D. A.; Moa, T.; Nordkvist, B.; Ohm, C. C.; Papadelis, A.; Ramstedt, M.; Sellden, B.; Silverstein, S. B.; Sjolin, J.; Strandberg, S.; Tylmad, M.; Yang, Z.] Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
[Asman, B.; Clement, C.; Gellerstedta, K.; Hellman, S.; Johansen, M.; Jonand, K.; Lundberg, J.; Milstead, D. A.; Moa, T.; Nordkvist, B.; Ohm, C. C.; Ramstedt, M.; Sjolin, J.; Strandberg, S.; Tylmad, M.; Yang, Z.] Oskar Klein Ctr, Stockholm, Sweden.
[Lund-Jensen, B.; Strandberg, J.] Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden.
[Ahmad, A.; Caputo, R.; Deluca, C.; Devetak, E.; DeWilde, B.; Engelmann, R.; Farley, J.; Goodson, J. J.; Grassi, V.; Gray, J. A.; Hobbs, J.; Jia, J.; McCarthy, R. L.; Mohapatra, S.; Rijssenbeek, M.; Schamberger, R. D.; Stupak, J.; Tsybychev, D.; Yurkewicz, A.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
[Lee, J. S. H.; Patel, N.; Saavedra, A. F.; Varvell, K. E.; Waugh, A. T.; Yabsley, B.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia.
[Hou, S.; Lee, S. C.; Lin, S. C.; Liu, D.; Mazini, R.; Meng, Z.; Ren, Z. L.; Soh, D. A.; Teng, P. K.; Wang, H.; Wang, J.; Wang, S. M.; Weng, Z.; Zhang, D.; Zhong, J.; Zhou, Y.] Acad Sinica, Inst Phys, Taipei, Taiwan.
[Harpaz, S. Behar; Ben Ami, S.; Bressler, S.; Hershenhorn, A. D.; Kajomovitz, E.; Landsman, H.; Lifshitz, R.; Rozen, Y.; Tarem, S.; Vallecorsa, S.] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel.
[Abramowicz, H.; Alexander, G.; Amram, N.; Andreia, V.; Bella, G.; Benary, O.; Benhammou, Y.; Brodet, E.; Etzion, E.; Gershon, A.; Ginzburg, J.; Guttman, N.; Hod, N.; Kreisel, A.; Mahalalel, Y.; Munwes, Y.; Oren, Y.; Reinherz-Aronis, E.; Sadeh, I.; Silver, Y.; Soffer, A.; Taiblum, N.; Urkovsky, E.] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
[Iliadis, D.; Kordas, K.; Kouskoura, V.; Nomidis, I.; Petridis, A.; Petridou, C.; Sampsonidis, D.] Aristotle Univ Thessaloniki, Dept Phys, GR-54006 Thessaloniki, Greece.
[Akimoto, G.; Asai, S.; Azuma, Y.; Dohmae, T.; Imori, M.; Kanaya, N.; Kataoka, Y.; Kawamoto, T.; Kessoku, K.; Kobayashi, T.; Komori, Y.; Mashimo, T.; Masubuchi, T.; Matsumoto, H.; Matsunaga, H.; Nakamura, K.; Ninomiya, Y.; Oda, S.; Okuyama, T.; Sakamoto, H.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamamoto, S.; Yamamura, T.; Yamazaki, T.] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo, Japan.
[Akimoto, G.; Asai, S.; Azuma, Y.; Dohmae, T.; Imori, M.; Kanaya, N.; Kataoka, Y.; Kawamoto, T.; Kessoku, K.; Kobayashi, T.; Komori, Y.; Mashimo, T.; Masubuchi, T.; Matsumoto, H.; Matsunaga, H.; Nakamura, K.; Ninomiya, Y.; Oda, S.; Okuyama, T.; Sakamoto, H.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamamoto, S.; Yamamura, T.; Yamazaki, T.] Univ Tokyo, Dept Phys, Tokyo 113, Japan.
[Bratzler, U.; Fukunaga, C.] Tokyo Metropolitan Univ, Grad Sch Sci & Technol, Tokyo 158, Japan.
[Jinnouchi, O.; Kanno, T.; Kuze, M.] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan.
[Bailey, D. C.; Bain, T.; Beare, B.; Brelier, B.; Cheung, S. L.; Deviveiros, P. O.; Dhaliwal, S.; Farooque, T.; Fatholahzadeh, B.; Gibson, A.; Guo, B.; Jankowski, E.; Keung, J.; Krieger, P.; Le Maner, C.; Martens, F. K.; Orr, R. S.; Rezvani, R.; Rosenbaum, G. A.; Savard, P.; Sinervo, P.; Solodkov, A. A.; Spreitzer, T.; Tardif, D.; Teuscher, R. J.; Thompson, P. D.; Trischuk, W.] Univ Toronto, Dept Phys, Toronto, ON, Canada.
[Azuelos, G.; Canepa, A.; Caron, B.; Chekulaev, S. V.; Fortin, D.; Gingrich, D. M.; Losty, M. J.; Nugent, I. M.; Oakham, F. G.; Oram, C. J.; Savard, P.; Stelzer-Chilton, O.; Tafirout, R.; Trigger, I. M.; Vetterli, M. C.] TRIUMF, Vancouver, BC V6T 2A3, Canada.
[Taylorb, W.] York Univ, Dept Phys & Astron, Toronto, ON M3J 2R7, Canada.
[Hara, K.; Kim, S. H.; Kurata, M.; Nagai, K.; Ukegawa, F.] Univ Tsukuba, Inst Pure & Appl Sci, Ibaraki, Japan.
[Hamilton, S.; Napier, A.; Rolli, S.; Sliwa, K.; Todorova-Nova, S.] Tufts Univ, Sci & Technol Ctr, Medford, MA 02155 USA.
[Losada, M.; Loureiro, K. F.; Mendoza Navas, L.; Navarro, G.; Rodriguez, D.] Univ Antonio Narino, Ctr Invest, Bogota, Colombia.
[Avolio, G.; Benedict, B. H.; Bold, T.; Ciobotaru, M. D.; Deng, J.; Dobson, M.; Eschrich, I. Gough; Grabowska-Bold, I.; Hawkins, D.; Lankford, A. J.; Okawa, H.; Porter, R.; Scannicchio, D. A.; Schernau, M.; Taffard, A.; Toggerson, B.; Unel, G.; Werth, M.; Wheeler-Ellis, S. J.; Whiteson, D.; Zhou, N.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA.
[Acharya, B. S.; Cauz, D.; Cobal, M.; De Lotto, B.; De Sanctis, U.; Del Papa, C.; Pinamonti, M.; Shaw, K.] Ist Nazl Fis Nucl, Grp Coll Udine, Udine, Italy.
[Acharya, B. S.] Abdus Salaam Int Ctr Theoret Phys, Trieste, Italy.
[Cauz, D.; Cobal, M.; De Lotto, B.; De Sanctis, U.; Del Papa, C.; Pinamonti, M.; Shaw, K.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[Benekos, N.; Coggeshall, J.; Cortes-Gonzalez, A.; Errede, D.; Errede, S.; Khandanyan, H.; Lie, K.; Liss, T. M.; McCarn, A.; Neubauer, M. S.; Vichou, I.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
[Brenner, R.; Buszello, C. P.; Ellert, M.; Ferrari, A.] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden.
[Amoros, G.; Cabrera Urban, S.; Gimenez, V. Castillo; Costa, M. J.; Escobar, C.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Torro Pastor, E.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] CSIC, Valencia, Spain.
[Amoros, G.; Cabrera Urban, S.; Gimenez, V. Castillo; Costa, M. J.; Escobar, C.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Torro Pastor, E.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Inst Fis Corpuscular IFIC, Valencia, Spain.
[Amoros, G.; Cabrera Urban, S.; Gimenez, V. Castillo; Costa, M. J.; Escobar, C.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Torro Pastor, E.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Dept Fis Atom Mol & Nucl, Valencia, Spain.
[Amoros, G.; Cabrera Urban, S.; Gimenez, V. Castillo; Costa, M. J.; Escobar, C.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Torro Pastor, E.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Dept Ingenier Elect, Valencia, Spain.
[Amoros, G.; Cabrera Urban, S.; Gimenez, V. Castillo; Costa, M. J.; Escobar, C.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Torro Pastor, E.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Inst Microelect Barcelona IMB CNM, Valencia, Spain.
[Axen, D.; Gay, C.; Loh, C. W.; Mills, W. J.; Muir, A.; Swedish, S.; Viel, S.] Univ British Columbia, Dept Phys, Vancouver, BC, Canada.
[Astbury, A.; Banerjee, Sw.; Bansal, V.; Berghaus, F.; Courneyea, L.; Fincke-Keeler, M.; Keeler, R.; Kowalewski, R.; Lefebvre, M.; Lessard, J. -R.; McPherson, R. A.; Plamondon, M.; Sobie, R.] Univ Victoria, Dept Phys & Astron, Victoria, BC, Canada.
[Kimura, N.; Yorita, K.] Waseda Univ, Tokyo, Japan.
[Alon, R.; Barak, L.; Duchovni, E.; Frank, T.; Gabizon, O.; Gross, E.; Groth-Jensen, J.; Klier, A.; Lellouch, D.; Levinson, L. J.; Mikenberg, G.; Milov, A.; Milstein, D.; Roth, I.; Silbert, O.; Smakhtin, V.; Vitells, O.] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel.
[Asfandiyarov, R.; Montoya, G. D. Carrillo; Hernandez, A. M. Castaneda; Castaneda-Miranda, E.; Chen, X.; Dos Anjos, A.; Fang, Y.; Castillo, L. R. Flores; Gonzalez, S.; Gutzwiller, O.; Kashif, L.; La Rosa, A.; Cheong, A. Leung Fook; Li, H.; Ma, L. L.; Garcia, B. R. Mellado; Pan, Y. B.; Pataraia, S.; Morales, M. I. Pedraza; Peng, H.; Poveda, J.; Quayle, W. B.; Sarangi, T.; Wang, H.; Wiedenmann, W.; Wu, S. L.; Zhu, Y.; Zobernig, G.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
[Fleischmann, P.; Meyer, J.; Redelbach, A.; Siragusa, G.; Stroehmer, R.; Trefzger, T.] Univ Wurzburg, Fak Phys & Astron, Wurzburg, Germany.
[Barisonzi, M.; Becks, K. H.; Boek, J.; Braun, H. M.; Drees, J.; Fleischmann, S.; Flick, T.; Gerlach, P.; Glitza, K. W.; Gorfine, G.; Grah, C.; Hamacher, K.; Harenberg, T.; Henss, T.; Hirschbuehl, D.; Imhaeuser, M.; Kalinin, S.; Kersten, S.; Khoroshilov, A.; Kootz, A.; Kuhl, T.; Lenz, T.; Lenzen, G.; Maettig, P.; Mechtel, M.; Sandhoff, M.; Sandvoss, S.; Sartisohn, G.; Schultes, J.; Siebel, A.; Sturm, P.; Thadome, J.; Voss, T. T.; Wagner, W.; Wahlen, H.; Wicke, D.; Zeitnitz, C.] Berg Univ Wuppertal, Fachbereich Phys C, Wuppertal, Germany.
[Adelman, J.; Atoian, G.; Auerbach, B.; Baker, O. K.; Be-Dikian, S.; Almenar, C. Cuenca; Demers, S.; Garberson, F.; Golling, T.; Guest, D.; Hsu, P. J.; Kaplan, B.; Lee, L.; Lockwitz, S.; Loginov, A.; Martin, A. J.; Sherman, D.; Thioye, M.; Tipton, P.; Wall, R.; Zeller, M.] Yale Univ, Dept Phys, New Haven, CT USA.
[Grabski, V.; Hakobyan, H.] Yerevan Phys Inst, Yerevan 375036, Armenia.
[Biscarat, C.; Cogneras, E.; Rahal, G.] CNRS, Ctr Calcul, IN2P3, Villeurbanne, France.
[Amorim, A.; Carvalho, J.; Gomes, A.; Jorge, P. M.; Lopes, L.; Maio, A.; Morais, A.; Palma, A.; Pina, J.; Pinto, B.; Saraiva, J. G.; Silva, J.] Univ Lisbon, Fac Ciencias, Lisbon, Portugal.
[Amorim, A.; Carvalho, J.; Gomes, A.; Jorge, P. M.; Lopes, L.; Maio, A.; Morais, A.; Palma, A.; Pina, J.; Pinto, B.; Saraiva, J. G.; Silva, J.] Univ Lisbon, CFNUL, Lisbon, Portugal.
[Bawa, H. S.; Gao, Y. S.; Lowe, A. J.] Calif State Univ Fresno, Dept Phys, Fresno, CA 93740 USA.
[Fiolhais, M. C. N.; Oliveira, M.; Wolters, H.] Univ Coimbra, Dept Phys, Coimbra, Portugal.
[Con-Venti, F.; Della Pietra, M.] Univ Napoli Parthenope, Naples, Italy.
[Demirkoz, B.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey.
[Dhullipudi, R.; Greenwood, Z. D.; Sawyer, L.] Louisiana Tech Univ, Ruston, LA 71270 USA.
[Kono, T.; Terwort, M.; Wildt, M. A.] Univ Hamburg, Inst Expt Phys, Hamburg, Germany.
[Konoplich, R.] Manhattan Coll, New York, NY USA.
[Liang, Z.; Soh, D. A.; Weng, Z.] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou, Peoples R China.
[Lin, S. C.] Acad Sinica, Inst Phys, Acad Sinica Grid Comp, Taipei, Taiwan.
[Mateos, D. Lopez] CALTECH, Pasadena, CA 91125 USA.
[Onofre, A.] Univ Minho, Dept Fis, Braga, Portugal.
[Park, W.; Purohit, M.; Trivedi, A.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Pasztor, G.; Toth, J.] Inst Particle & Nucl Phys, KFKI Res Inst, Budapest, Hungary.
[Richter-Was, E.] Jagiellonian Univ, Inst Phys, Krakow, Poland.
RP Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
RI branchini, paolo/A-4857-2011; Wolter, Marcin/A-7412-2012; Rotaru,
Marina/A-3097-2011; Doyle, Anthony/C-5889-2009; valente,
paolo/A-6640-2010; Buttar, Craig/D-3706-2011; Takai, Helio/C-3301-2012;
Gutierrez, Phillip/C-1161-2011; collins-tooth, christopher/A-9201-2012;
Ferrando, James/A-9192-2012; Perrino, Roberto/B-4633-2010; De Cecco,
Sandro/B-1016-2012; Stoicea, Gabriel/B-6717-2011; Britton,
David/F-2602-2010; Grinstein, Sebastian/N-3988-2014; Solodkov,
Alexander/B-8623-2017; Zaitsev, Alexandre/B-8989-2017; Yang,
Haijun/O-1055-2015; Monzani, Simone/D-6328-2017; Leyton,
Michael/G-2214-2016; Vranjes Milosavljevic, Marija/F-9847-2016; SULIN,
VLADIMIR/N-2793-2015; Olshevskiy, Alexander/I-1580-2016; Mora Herrera,
Maria Clemencia/L-3893-2016; Maneira, Jose/D-8486-2011; Prokoshin,
Fedor/E-2795-2012; Morone, Maria Cristina/P-4407-2016; Goncalo,
Ricardo/M-3153-2016; Canelli, Florencia/O-9693-2016; Idzik,
Marek/A-2487-2017; Camarri, Paolo/M-7979-2015; Gavrilenko,
Igor/M-8260-2015; Jones, Roger/H-5578-2011; Chekulaev,
Sergey/O-1145-2015; Gorelov, Igor/J-9010-2015; Carvalho,
Joao/M-4060-2013; Booth, Christopher/B-5263-2016; Tikhomirov,
Vladimir/M-6194-2015; Gonzalez de la Hoz, Santiago/E-2494-2016; Guo,
Jun/O-5202-2015; Smirnova, Oxana/A-4401-2013; Aguilar Saavedra, Juan
Antonio/F-1256-2016; Villaplana Perez, Miguel/B-2717-2015; Livan,
Michele/D-7531-2012; Mitsou, Vasiliki/D-1967-2009; Joergensen,
Morten/E-6847-2015; Martins, Paulo/M-1844-2014; Mir,
Lluisa-Maria/G-7212-2015; Riu, Imma/L-7385-2014; Cabrera Urban,
Susana/H-1376-2015; Cavalli-Sforza, Matteo/H-7102-2015; Ferrer,
Antonio/H-2942-2015; Hansen, John/B-9058-2015; Grancagnolo,
Sergio/J-3957-2015; Shmeleva, Alevtina/M-6199-2015; Lokajicek,
Milos/G-7800-2014; Staroba, Pavel/G-8850-2014; Kupco,
Alexander/G-9713-2014; Mikestikova, Marcela/H-1996-2014; Snesarev,
Andrey/H-5090-2013; Svatos, Michal/G-8437-2014; Chudoba,
Jiri/G-7737-2014; Peleganchuk, Sergey/J-6722-2014; Santamarina Rios,
Cibran/K-4686-2014; Lei, Xiaowen/O-4348-2014; Demirkoz,
Bilge/C-8179-2014; Ventura, Andrea/A-9544-2015; Kartvelishvili,
Vakhtang/K-2312-2013; Dawson, Ian/K-6090-2013; Solfaroli Camillocci,
Elena/J-1596-2012; Wolters, Helmut/M-4154-2013; Warburton,
Andreas/N-8028-2013; De, Kaushik/N-1953-2013; Sukharev,
Andrey/A-6470-2014; O'Shea, Val/G-1279-2010; Lee, Jason/B-9701-2014;
Morozov, Sergey/C-1396-2014; Robson, Aidan/G-1087-2011; Villa,
Mauro/C-9883-2009; Nemecek, Stanislav/G-5931-2014; Orlov,
Ilya/E-6611-2012; Annovi, Alberto/G-6028-2012; Brooks,
William/C-8636-2013; Pina, Joao /C-4391-2012; Vanyashin,
Aleksandr/H-7796-2013; La Rosa, Alessandro/I-1856-2013; Casadei,
Diego/I-1785-2013; Moraes, Arthur/F-6478-2010; Conde Muino,
Patricia/F-7696-2011; Boyko, Igor/J-3659-2013; Kuleshov,
Sergey/D-9940-2013; Anjos, Nuno/I-3918-2013; Kuzhir, Polina/H-8653-2012;
Delmastro, Marco/I-5599-2012; Weigell, Philipp/I-9356-2012; Veneziano,
Stefano/J-1610-2012; Di Micco, Biagio/J-1755-2012; spagnolo,
stefania/A-6359-2012; Di Nardo, Roberto/J-4993-2012; Della Pietra,
Massimo/J-5008-2012; Andreazza, Attilio/E-5642-2011; Bergeaas Kuutmann,
Elin/A-5204-2013; Cascella, Michele/B-6156-2013; messina,
andrea/C-2753-2013; Amorim, Antonio/C-8460-2013; Fazio, Salvatore
/G-5156-2010; Smirnova, Lidia/D-8089-2012; Smirnov, Sergei/F-1014-2011;
Gladilin, Leonid/B-5226-2011; Barreiro, Fernando/D-9808-2012;
Kramarenko, Victor/E-1781-2012; Alexa, Calin/F-6345-2010; Moorhead,
Gareth/B-6634-2009; Petrucci, Fabrizio/G-8348-2012; Wemans,
Andre/A-6738-2012; Fabbri, Laura/H-3442-2012; Li, Xuefei/C-3861-2012;
Kurashige, Hisaya/H-4916-2012
OI Strube, Jan/0000-0001-7470-9301; Beck, Hans Peter/0000-0001-7212-1096;
Prokofiev, Kirill/0000-0002-2177-6401; Chen, Chunhui
/0000-0003-1589-9955; Filthaut, Frank/0000-0003-3338-2247; abi,
babak/0000-0001-7036-9645; Rotaru, Marina/0000-0003-3303-5683; Doyle,
Anthony/0000-0001-6322-6195; valente, paolo/0000-0002-5413-0068; Takai,
Helio/0000-0001-9253-8307; Ferrando, James/0000-0002-1007-7816; Perrino,
Roberto/0000-0002-5764-7337; Stoicea, Gabriel/0000-0002-7511-4614;
Britton, David/0000-0001-9998-4342; Cranmer, Kyle/0000-0002-5769-7094;
Vos, Marcel/0000-0001-8474-5357; Castro, Nuno/0000-0001-8491-4376;
Farrington, Sinead/0000-0001-5350-9271; Turra,
Ruggero/0000-0001-8740-796X; Robson, Aidan/0000-0002-1659-8284; Weber,
Michele/0000-0002-2770-9031; Nisati, Aleandro/0000-0002-5080-2293; Gray,
Heather/0000-0002-5293-4716; Mincer, Allen/0000-0002-6307-1418;
Grinstein, Sebastian/0000-0002-6460-8694; Adye, Tim/0000-0003-0627-5059;
Cristinziani, Markus/0000-0003-3893-9171; Chromek-Burckhart,
Doris/0000-0003-4243-3288; Haas, Andrew/0000-0002-4832-0455; Solodkov,
Alexander/0000-0002-2737-8674; Zaitsev, Alexandre/0000-0002-4961-8368;
Monzani, Simone/0000-0002-0479-2207; Sawyer, Lee/0000-0001-8295-0605;
Begel, Michael/0000-0002-1634-4399; Bailey, David C/0000-0002-7970-7839;
Qian, Jianming/0000-0003-4813-8167; Evans, Harold/0000-0003-2183-3127;
Nielsen, Jason/0000-0002-9175-4419; Chen, Hucheng/0000-0002-9936-0115;
Cataldi, Gabriella/0000-0001-8066-7718; Vari,
Riccardo/0000-0002-2814-1337; Leyton, Michael/0000-0002-0727-8107;
Vranjes Milosavljevic, Marija/0000-0003-4477-9733; SULIN,
VLADIMIR/0000-0003-3943-2495; Olshevskiy, Alexander/0000-0002-8902-1793;
Mora Herrera, Maria Clemencia/0000-0003-3915-3170; Maneira,
Jose/0000-0002-3222-2738; Prokoshin, Fedor/0000-0001-6389-5399; Morone,
Maria Cristina/0000-0002-0200-0632; Goncalo,
Ricardo/0000-0002-3826-3442; Canelli, Florencia/0000-0001-6361-2117;
Camarri, Paolo/0000-0002-5732-5645; Jones, Roger/0000-0002-6427-3513;
Gorelov, Igor/0000-0001-5570-0133; Carvalho, Joao/0000-0002-3015-7821;
Booth, Christopher/0000-0002-6051-2847; Tikhomirov,
Vladimir/0000-0002-9634-0581; Gonzalez de la Hoz,
Santiago/0000-0001-5304-5390; Guo, Jun/0000-0001-8125-9433; Smirnova,
Oxana/0000-0003-2517-531X; Aguilar Saavedra, Juan
Antonio/0000-0002-5475-8920; Villaplana Perez,
Miguel/0000-0002-0048-4602; Livan, Michele/0000-0002-5877-0062; Mitsou,
Vasiliki/0000-0002-1533-8886; Joergensen, Morten/0000-0002-6790-9361;
Martins, Paulo/0000-0003-3753-3751; Mir,
Lluisa-Maria/0000-0002-4276-715X; Riu, Imma/0000-0002-3742-4582; Ferrer,
Antonio/0000-0003-0532-711X; Hansen, John/0000-0002-8422-5543;
Grancagnolo, Sergio/0000-0001-8490-8304; Mikestikova,
Marcela/0000-0003-1277-2596; Svatos, Michal/0000-0002-7199-3383;
Peleganchuk, Sergey/0000-0003-0907-7592; Santamarina Rios,
Cibran/0000-0002-9810-1816; Lei, Xiaowen/0000-0002-2564-8351; Ventura,
Andrea/0000-0002-3368-3413; Solfaroli Camillocci,
Elena/0000-0002-5347-7764; Wolters, Helmut/0000-0002-9588-1773;
Warburton, Andreas/0000-0002-2298-7315; De, Kaushik/0000-0002-5647-4489;
O'Shea, Val/0000-0001-7183-1205; Lee, Jason/0000-0002-2153-1519;
Morozov, Sergey/0000-0002-6748-7277; Villa, Mauro/0000-0002-9181-8048;
Orlov, Ilya/0000-0003-4073-0326; Annovi, Alberto/0000-0002-4649-4398;
Brooks, William/0000-0001-6161-3570; Pina, Joao /0000-0001-8959-5044;
Vanyashin, Aleksandr/0000-0002-0367-5666; La Rosa,
Alessandro/0000-0001-6291-2142; Moraes, Arthur/0000-0002-5157-5686;
Conde Muino, Patricia/0000-0002-9187-7478; Boyko,
Igor/0000-0002-3355-4662; Kuleshov, Sergey/0000-0002-3065-326X; Kuzhir,
Polina/0000-0003-3689-0837; Delmastro, Marco/0000-0003-2992-3805;
Veneziano, Stefano/0000-0002-2598-2659; spagnolo,
stefania/0000-0001-7482-6348; Della Pietra, Massimo/0000-0003-4446-3368;
Andreazza, Attilio/0000-0001-5161-5759; Cascella,
Michele/0000-0003-2091-2501; Smirnov, Sergei/0000-0002-6778-073X;
Gladilin, Leonid/0000-0001-9422-8636; Barreiro,
Fernando/0000-0002-3021-0258; Moorhead, Gareth/0000-0002-9299-9549;
Petrucci, Fabrizio/0000-0002-5278-2206; Wemans,
Andre/0000-0002-9669-9500; Fabbri, Laura/0000-0002-4002-8353;
FU ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS,
Azerbaijan; SSTC, Belarus; CNPq, Brazil; FAPESP, Brazil; NSERC, Canada;
NRC, Canada; CFI, Canada; CERN; CONICYT, Chile; CAS, China; MOST, China;
NSFC, China; COLCIEN-CIAS, Colombia; MSMT CR, Czech Republic; MPO CR,
Czech Republic; VSC CR, Czech Republic; DNRF, Denmark; DNSRC, Denmark;
Lundbeck Foundation, Denmark; ARTEMIS, European Union; IN2P3-CNRS,
France; CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, Germany; DFG,
Germany; HGF, Germany; MPG, Germany; AvH Foundation, Germany; GSRT,
Greece; ISF, Israel; MINERVA, Israel; GIF, Israel; DIP, Israel; Benoziyo
Center, Israel; INFN, Italy; MEXT, Japan; JSPS, Japan; CNRST, Morocco;
FOM, Netherlands; NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES,
Portugal; FCT, Portugal; MERYS (MECTS), Romania; MES of Russia; ROSATOM,
Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS, Slovenia;
MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC, Sweden;
Wallenberg Foundation, Sweden; SER, Switzerland; SNSF, Switzerland;
Canton of Bern, Switzerland; Canton of Geneva, Switzerland; NSC, Taiwan;
TAEK, Turkey; STFC, United Kingdom; the Royal Society, United Kingdom;
Leverhulme Trust, United Kingdom; DOE, United States of America; NSF,
United States of America
FX We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC,
Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and
FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS,
MOST and NSFC, China; COLCIEN-CIAS, Colombia; MSMT CR, MPO CR and VSC
CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark;
ARTEMIS, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS,
Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece;
ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT
and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway;
MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of
Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR,
Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain;
SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and
Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society
and Leverhulme Trust, United Kingdom; DOE and NSF, United States of
America.
NR 42
TC 22
Z9 22
U1 4
U2 50
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 NOV
PY 2011
VL 71
IS 11
AR 1763
DI 10.1140/epjc/s10052-011-1763-6
PG 27
WC Physics, Particles & Fields
SC Physics
GA 857GT
UT WOS:000297706700002
ER
PT J
AU Dubey, M
Jablin, MS
Wang, P
Mocko, M
Majewski, J
AF Dubey, M.
Jablin, M. S.
Wang, P.
Mocko, M.
Majewski, J.
TI SPEAR - ToF neutron reflectometer at the Los Alamos Neutron Science
Center
SO EUROPEAN PHYSICAL JOURNAL PLUS
LA English
DT Article
ID MEMBRANES; FILMS
AB This article discusses the Surface ProfilE Analysis Reflectometer (SPEAR), a vertical scattering geometry time-of-flight reflectometer, at the Los Alamos National Laboratory Lujan Neutron Scattering Center. SPEAR occupies flight path 9 and receives spallation neutrons from a polychromatic, pulsed (20 Hz) source that pass through a liquid-hydrogen moderator at 20 K coupled with a Be filter to shift their energy spectrum. The spallation neutrons are generated by bombarding a tungsten target with 800 MeV protons obtained from an accelerator. The process produces an integrated neutron flux of similar to 3.4 x 10(6) cm(-2) s(-1) at a proton current of 100 mu A. SPEAR employs choppers and frame overlap mirrors to obtain a neutron wavelength range of 4.5-16 angstrom. SPEAR uses a single 200 mm long (3)He linear position-sensitive detector with similar to 2 mm FWHM resolution for simultaneous studies of both specular and off-specular scattering. SPEAR's moderated neutrons are collimated into a beam which impinges from above upon a level sample with an average angle of 0.9 degrees to the horizontal, to facilitate air-liquid interface studies. In the vertical direction, the beam converges at the sample position. The neutrons can be further collimated to the desired divergence by finely slitting the beam using a set of two (10)B(4)C slit packages. The instrument is ideally suited to study organic and inorganic thin films with total thicknesses between 5 and 3000 angstrom in a variety of environments. Specifically designed sample chambers available at the instrument provide the opportunity to study biological systems at the solid-liquid interface. SPEAR's unique experimental capabilities are demonstrated by specific examples in this article. Finally, an outlook for SPEAR and perspectives on future instrumentation are discussed.
C1 [Dubey, M.; Jablin, M. S.; Wang, P.; Mocko, M.; Majewski, J.] Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA.
RP Dubey, M (reprint author), Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, POB 1663, Los Alamos, NM 87545 USA.
EM jarek@lanl.gov
RI Wang, Peng/E-4633-2011; Lujan Center, LANL/G-4896-2012;
OI Mocko, Michael/0000-0003-0447-4687
FU DOE Office of Basic Energy Sciences; Los Alamos National Laboratory
under DOE [DE-AC52-06NA25396]
FX This work benefited from the use of the Lujan Neutron Scattering Center
at Los Alamos Neutron Science Center funded by the DOE Office of Basic
Energy Sciences and Los Alamos National Laboratory under DOE Contract
DE-AC52-06NA25396.
NR 11
TC 13
Z9 13
U1 2
U2 21
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 2190-5444
J9 EUR PHYS J PLUS
JI Eur. Phys. J. Plus
PD NOV
PY 2011
VL 126
IS 11
AR 110
DI 10.1140/epjp/i2011-11110-1
PG 11
WC Physics, Multidisciplinary
SC Physics
GA 863UU
UT WOS:000298194600008
ER
PT J
AU Jin, CG
Yu, T
Zhao, Y
Bo, Y
Ye, C
Hu, JS
Zhuge, LJ
Ge, SB
Wu, XM
Ji, HT
Li, JG
AF Jin, C. G.
Yu, T.
Zhao, Y.
Bo, Y.
Ye, C.
Hu, J. S.
Zhuge, L. J.
Ge, S. B.
Wu, X. M.
Ji, H. T.
Li, J. G.
TI Helicon Plasma Discharge in a Toroidal Magnetic Field of the Tokamak
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Experimental advanced superconducting tokamak (EAST); helicon; strong
magnetic field
ID TORE-SUPRA; REACTORS; FUSION; BEAMS; LENS
AB A helicon wave plasma (HWP) discharge in an experimental advanced superconducting tokamak device with a toroidal magnetic field of 2 T is investigated. The HWP with an electron density of 10(12) cm(-3) was produced with two 4-turn flat spiral antennas in series that are perpendicular to the toroidal magnetic field and driven by a 13.56-MHz radio-frequency (RF) source at a power of 1500 W, a toroidal magnetic field of 2 T, and a pressure (helium) of 1 Pa. The increase of the toroidal magnetic field from 0.5 to 2 T, the increase of the RF power from 500 to 1500 W, and the decrease of the pressure (helium) from 1 to 0.01 Pa were found to improve the plasma uniformity from the CCD images.
C1 [Jin, C. G.; Yu, T.; Zhao, Y.; Bo, Y.; Ye, C.; Ge, S. B.; Wu, X. M.] Soochow Univ, Dept Phys, Suzhou 215006, Peoples R China.
[Jin, C. G.; Yu, T.; Zhao, Y.; Bo, Y.; Ye, C.; Zhuge, L. J.; Ge, S. B.; Wu, X. M.] Soochow Univ, Key Lab Thin Films Jiangsu, Suzhou 215006, Peoples R China.
[Hu, J. S.; Li, J. G.] Chinese Acad Sci ASIPP, Inst Plasma Phys, Hefei 230031, Peoples R China.
[Zhuge, L. J.] Soochow Univ, Anal & Testing Ctr, Suzhou 215006, Peoples R China.
[Ji, H. T.] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Jin, CG (reprint author), Soochow Univ, Dept Phys, Suzhou 215006, Peoples R China.
EM nestajcg@126.com; cye@suda.edu.cn; hujs@ipp.ac.cn; ljzhuge@suda.edu.cn;
sbge@suda.edu.cn; xmwu@suda.edu.cn; hji@pppl.gov
FU National Magnetic Confinement Fusion Science Program [2010GB106000,
2010GB106009]; National Natural Science Foundation of China [10975106,
10975105, 11075114]; Qing Lan Project; Priority Academic Program
Development of Jiangsu Higher Education Institutions
FX Manuscript received January 29, 2011; revised May 12, 2011; accepted
June 22, 2011. Date of publication August 15, 2011; date of current
version November 9, 2011. This work was supported in part by the
National Magnetic Confinement Fusion Science Program under Grants
2010GB106000 and 2010GB106009, by the National Natural Science
Foundation of China under Grants 10975106, 10975105, and 11075114, by
the Qing Lan Project, and by a project funded by the Priority Academic
Program Development of Jiangsu Higher Education Institutions.
NR 25
TC 2
Z9 2
U1 2
U2 11
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD NOV
PY 2011
VL 39
IS 11
SI SI
BP 3103
EP 3107
DI 10.1109/TPS.2011.2161344
PN 2
PG 5
WC Physics, Fluids & Plasmas
SC Physics
GA 862GT
UT WOS:000298078500013
ER
PT J
AU Elizondo-Decanini, JM
Dudley, E
AF Elizondo-Decanini, Juan M.
Dudley, Evan
TI Pulsed High-Voltage Breakdown of Thin-Film Parylene C
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Breakdown; electric field; high voltage; thin film; pulsed
ID CONDUCTION
AB Measurements of polymer dielectric high-voltage (HV) strength at thicknesses in the 1- to 10-mu m range have always been difficult to validate and repeat. We report results of experiments done using parylene-C films of 2-, 4-, and 6-mu m thicknesses in a series of configurations intended to determine the HV breakdown of the material itself with a minimum of externally undefined parameters. The experiments used an alumina substrate coated with a conductive gold film with a parylene-C film deposited on top of the lower gold film. One edge of the lower gold film was exposed to provide electrical connection, and a triangular or circular gold electrode was deposited on the surface of parylene C. The intent was to test the dielectric breakdown strength of bare parylene C, as well as to evaluate the effects of field enhancements produced by the two electrode shapes. Initial data analysis shows the presence of at least two regimens of electron transport at breakdown: 1) ohmic or "trap dominated" and 2) space charge or "trap free."
C1 [Elizondo-Decanini, Juan M.; Dudley, Evan] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Elizondo-Decanini, JM (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
FU Department of Defense/Department of Energy
FX Manuscript received March 17, 2011; revised May 9, 2011; accepted June
15, 2011. Date of publication September 29, 2011; date of current
version November 9, 2011. This work was supported in part by the
Department of Defense/Department of Energy Joint Munitions Technology
Development Program under Contract DOD_DOEMOU.
NR 7
TC 1
Z9 2
U1 2
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD NOV
PY 2011
VL 39
IS 11
BP 3162
EP 3167
DI 10.1109/TPS.2011.2165565
PN 3
PG 6
WC Physics, Fluids & Plasmas
SC Physics
GA 862HA
UT WOS:000298079400001
ER
PT J
AU Yabusaki, SB
Fang, YL
Williams, KH
Murray, CJ
Ward, AL
Dayvault, RD
Waichler, SR
Newcomer, DR
Spane, FA
Long, PE
AF Yabusaki, Steven B.
Fang, Yilin
Williams, Kenneth H.
Murray, Christopher J.
Ward, Andy L.
Dayvault, Richard D.
Waichler, Scott R.
Newcomer, Darrell R.
Spane, Frank A.
Long, Philip E.
TI Variably saturated flow and multicomponent biogeochemical reactive
transport modeling of a uranium bioremediation field experiment
SO JOURNAL OF CONTAMINANT HYDROLOGY
LA English
DT Article
DE Uranium; Bioremediation; Reactive transport modeling
ID HIGHLY CONTAMINATED AQUIFER; MICROBIAL REDUCTION; GROUNDWATER; SORPTION;
CALCIUM; U(VI); HETEROGENEITY; BIOREDUCTION; REOXIDATION; CARBONATE
AB Three-dimensional, coupled variably saturated flow and biogeochemical reactive transport modeling of a 2008 in situ uranium bioremediation field experiment is used to better understand the interplay of transport and biogeochemical reactions controlling uranium behavior under pulsed acetate amendment, seasonal water table variation, spatially variable physical (hydraulic conductivity, porosity) and geochemical (reactive surface area) material properties. While the simulation of the 2008 Big Rusty acetate biostimulation field experiment in Rifle, Colorado was generally consistent with behaviors identified in previous field experiments at the Rifle IFRC site, the additional process and property detail provided several new insights. A principal conclusion from this work is that uranium bioreduction is most effective when acetate, in excess of the sulfate-reducing bacteria demand, is available to the metal-reducing bacteria. The inclusion of an initially small population of slow growing sulfate-reducing bacteria identified in proteomic analyses led to an additional source of Fe(II) from the dissolution of Fe(III) minerals promoted by biogenic sulfide. The falling water table during the experiment significantly reduced the saturated thickness of the aquifer and resulted in reactants and products, as well as unmitigated uranium, in the newly unsaturated vadose zone. High permeability sandy gravel structures resulted in locally high flow rates in the vicinity of injection wells that increased acetate dilution. In downgradient locations, these structures created preferential flow paths for acetate delivery that enhanced local zones of TEAP reactivity and subsidiary reactions. Conversely, smaller transport rates associated with the lower permeability lithofacies (e.g., fine) and vadose zone were shown to limit acetate access and reaction. Once accessed by acetate, however, these same zones limited subsequent acetate dilution and provided longer residence times that resulted in higher concentrations of TEAP reaction products when terminal electron donors and acceptors were not limiting. Finally, facies-based porosity and reactive surface area variations were shown to affect aqueous uranium concentration distributions with localized effects of the fine lithofacies having the largest impact on U(VI) surface complexation.
The ability to model the comprehensive biogeochemical reaction network, and spatially and temporally variable processes, properties, and conditions controlling uranium behavior during engineered bioremediation in the naturally complex Rifle IFRC subsurface system required a subsurface simulator that could use the large memory and computational performance of a massively parallel computer. In this case, the eSTOMP simulator, operating on 128 processor cores for 12 h, was used to simulate the 110-day field experiment and 50 days of post-biostimulation behavior. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Yabusaki, Steven B.; Fang, Yilin; Murray, Christopher J.; Ward, Andy L.; Waichler, Scott R.; Newcomer, Darrell R.; Spane, Frank A.; Long, Philip E.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Williams, Kenneth H.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Dayvault, Richard D.] SM Stoller Corp, Grand Junction, CO USA.
RP Yabusaki, SB (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM yabusaki@pnl.gov
RI Long, Philip/F-5728-2013; Williams, Kenneth/O-5181-2014; Fang,
Yilin/J-5137-2015
OI Long, Philip/0000-0003-4152-5682; Williams, Kenneth/0000-0002-3568-1155;
FU Climate and Environmental Sciences Division of the Office of Biological
and Environmental Research at the U.S. Department of Energy Office of
Science; Department of Energy's Office of Biological and Environmental
Research and located at Pacific Northwest National Laboratory; Pacific
Northwest National Laboratory [DE-AC06-76RL01830]
FX The modeling presented builds on the accomplishments of a large
interdisciplinary team of researchers working together in the laboratory
and the field. In addition to the efforts of that large group of
researchers, we would like to recognize the contributions of Mike
Wilkins for his guidance on this manuscript, Kate Draper for performing
most of the sediment measurements, and Yi-Ju Bott for assisting with the
geostatistical analysis and generation of the lithofacies realizations
and the facies-based realizations of hydraulic conductivity, porosity,
and surface area. The work conducted at the Rifle Integrated Field
Research Challenge (IFRC) site in Rifle, Colorado is supported by the
Subsurface Biogeochemical Research Program in the Climate and
Environmental Sciences Division of the Office of Biological and
Environmental Research at the U.S. Department of Energy Office of
Science. Access to the site is in accordance with the City of Rifle and
is managed under the DOE's Long-Term Surveillance and Monitoring
Program. The large scale computer simulations were performed on the
18,480 processor-core Chinook supercomputer in the Molecular Sciences
Computing Facility in the Environmental Molecular Sciences Laboratory, a
national scientific user faciliry sponsored by the Department of
Energy's Office of Biological and Environmental Research and located at
Pacific Northwest National Laboratory. Pacific Northwest National
Laboratory is operated by Battelle for the United States Department of
Energy under Contract DE-AC06-76RL01830.
NR 53
TC 46
Z9 46
U1 2
U2 54
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0169-7722
J9 J CONTAM HYDROL
JI J. Contam. Hydrol.
PD NOV 1
PY 2011
VL 126
IS 3-4
BP 271
EP 290
DI 10.1016/j.jconhyd.2011.09.002
PG 20
WC Environmental Sciences; Geosciences, Multidisciplinary; Water Resources
SC Environmental Sciences & Ecology; Geology; Water Resources
GA 867OG
UT WOS:000298463100014
PM 22115092
ER
PT J
AU Abreu, P
Aglietta, M
Ahn, EJ
Albuquerque, LFM
Allard, D
Allekotte, I
Allen, J
Allison, P
Castio, JA
Alvarez-Muniz, J
Ambrosio, M
Amianei, A
Anchordoqui, L
Andringa, S
Anticic, T
Anzalone, A
Aramo, C
Arganda, E
Arqueros, F
Asorey, H
Assis, P
Aublin, J
Ave, M
Avenier, M
Avila, G
Backer, T
Balzer, M
Barber, KB
Barbosa, AF
Bardenet, R
Barroso, SLC
Baughman, B
Bauml, J
Beatty, JJ
Becker, BR
Becker, KH
Belletoile, A
Bellido, JA
BenZvi, S
Berat, C
Bertou, X
Biermann, PL
Billoir, P
Blanco, F
Blanco, M
Bleve, C
Blumer, H
Bohacova, M
Boncioli, D
Bonifazi, C
Bonino, R
Borodai, N
Brack, J
Brogueira, P
Brown, WC
Bruijn, R
Buchholz, P
Bueno, A
Burton, RE
Caballero-Mora, KS
Caramete, L
Caruso, R
Castellina, A
Catalano, O
Cataldi, G
Cazon, L
Cester, R
Chauvin, J
Cheng, SH
Chiavassa, A
Chinellato, JA
Chou, A
Chudoba, J
Clay, RW
Coluccia, MR
Conceicao, R
Contreras, F
Cook, H
Cooper, MJ
Coppens, J
Cordier, A
Coutu, S
Covault, CE
Creusot, A
Criss, A
Cronin, J
Curutiu, A
Dagoret-Campagne, S
Dallier, R
Dasso, S
Daumiller, K
Dawson, BR
de Almeida, RM
De Domenico, N
De Donato, C
de Jong, SJ
De La Vega, G
de Mello, WJM
Neto, JRTD
De Mitri, I
de Souza, V
de Vries, KD
Decerprit, G
del Peral, L
del Rio, M
Deligny, O
Dembinski, H
Dhital, N
Di Giulio, C
Diaz, JC
Castro, MLD
Diep, PN
Dobrigkeit, C
Docters, W
D'Olivo, JC
Dong, PN
Dorofeev, A
dos Anjos, JC
Dova, MT
D'Urso, D
Dutan, I
Ebr, J
Engel, R
Erdmann, M
Escobar, CO
Espadanal, J
Etchegoyen, A
Luis, PFS
Tapia, IF
Falcke, H
Farrar, G
Fauth, AC
Fazzini, N
Ferguson, AP
Ferrero, A
Fick, B
Filevich, A
Filipcic, A
Fliescher, S
Fracchiolla, CE
Fraenkel, ED
Frohlich, U
Fuchs, B
Gaior, R
Gamarra, RF
Gambetta, S
Garcia, B
Gamez, DG
Garcia-Pinto, D
Gascon, A
Gemmeke, H
Gesterling, K
Ghia, PL
Giaccari, U
Giller, M
Glass, H
Gold, MS
Golup, G
Albarracin, FG
Berisso, MG
Goncalves, P
Gonzalez, D
Gonzalez, JG
Gookin, B
Gora, D
Gorgi, A
Gouffon, P
Gozzini, SR
Grashorn, E
Grebe, S
Griffith, N
Grigat, M
Grillo, AF
Guardincerri, Y
Guarino, F
Guedes, GP
Guzman, A
Hague, JD
Hansen, P
Harari, D
Harmsma, S
Harrison, TA
Harton, JL
Haungs, A
Hebbeker, T
Heck, D
Herve, AE
Hojvat, C
Hollon, N
Holmes, VC
Homola, P
Horandel, JR
Horneffer, A
Horvath, P
Hrabovsky, M
Huege, T
Insolia, A
Ionita, F
Italiano, A
Jarne, C
Jiraskova, S
Josebachuili, M
Kadija, K
Kampert, KH
Karhan, P
Kasper, P
Kegl, B
Keilhauer, B
Keivani, A
Kelley, JL
Kemp, F
Kieckhafer, RM
Klages, HO
Kleifges, M
Kleinfeller, J
Knapp, J
Koang, DH
Kotera, K
Krohm, N
Kromer, O
Kruppke-Hansen, D
Kuehn, F
Kuempel, D
Kulbartz, JK
Kunka, N
La Rosa, G
Lachaud, C
Lautridou, P
Leao, MSAB
Lebrun, D
Lebrun, P
de Oliveira, MAL
Lemiere, A
Letessier-Selvon, A
Lhenry-Yvon, I
Link, K
Lopez, R
Aguera, AL
Louedec, K
Bahilo, JL
Lu, L
Lucero, A
Ludwig, M
Lyberis, H
Maccarone, MC
Macolino, C
Maldera, S
Mandat, D
Mantsch, P
Mariazzi, AG
Marin, J
Marin, V
Maris, IC
Falcon, HRM
Marsella, G
Martello, D
Martin, L
Martinez, H
Bravo, OM
Mathes, HJ
Matthews, J
Matthews, JAJ
Matthiae, G
Maurizio, D
Mazur, PO
Medina-Tanco, G
Melissas, M
Melo, D
Menichetti, E
Menshikov, A
Mertsch, P
Meurer, C
Micanovic, S
Micheletti, MI
Miller, W
Miramonti, L
Molina-Bueno, L
Mollerach, S
Monasor, M
Ragaigne, DM
Montanet, F
Morales, B
Morello, C
Moreno, E
Moreno, JC
Morris, C
Mostafa, M
Moura, CA
Mueller, S
Muller, MA
Muller, G
Munchmeyer, M
Mussa, R
Navarra, G
Navarro, JL
Navas, S
Necesal, P
Nellen, L
Nelles, A
Neuser, J
Nhung, PT
Niemietz, L
Nierstenhoefer, N
Nitz, D
Nosek, D
Nozka, L
Nyklicek, M
Oehlschlager, J
Olinto, A
Oliva, P
Olmos-Gilbaja, VM
Ortiz, M
Pacheco, N
Selmi-Dei, DP
Palatka, M
Pallotta, J
Palmieri, N
Parente, G
Parizot, E
Parra, A
Parsons, RD
Pastor, S
Paul, T
Pech, M
Pekala, J
Pelayo, R
Pepe, IM
Perrone, L
Pesce, R
Petermann, E
Petrera, S
Petrinca, P
Petrolini, A
Petrov, Y
Petrovic, J
Pfendner, C
Phan, N
Piegaia, R
Pierog, T
Pieroni, P
Pimenta, M
Pirronello, V
Platino, M
Ponce, VH
Pontz, M
Privitera, P
Prouza, M
Quel, EJ
Querchfeld, S
Rautenberg, J
Ravel, O
Ravignani, D
Revenu, B
Ridky, J
Riggi, S
Risse, M
Ristori, R
Rivera, H
Rizi, V
Roberts, J
Robledo, C
de Carvalho, WR
Rodriguez, G
Martino, J
Rojo, J
Rodriguez-Cabo, I
Rodriguez-Frias, MD
Ros, G
Rosado, J
Rossler, T
Roth, M
Rouille-d'Orfeuil, B
Roulet, E
Rovero, AC
Ruhle, C
Salamida, F
Salazar, H
Greus, FS
Salina, G
Sanchez, F
Santo, CE
Santos, E
Santos, EM
Sarazin, F
Sarkar, B
Sarkar, S
Sato, R
Scharf, N
Scherini, V
Schieler, H
Schiffer, P
Schmidt, A
Schmidt, F
Scholten, O
Schoorlemmer, H
Schovancova, J
Schovanek, P
Schroder, F
Schulte, S
Schuster, D
Sciutto, SJ
Scuderi, M
Segreto, A
Settimo, M
Shadkam, A
Shellard, RC
Sidelnik, I
Sigl, G
Lopez, HH
Smialkowski, A
Smida, R
Snow, GR
Sommers, P
Sorokin, J
Spinka, H
Squartini, R
Stanic, S
Stapleton, J
Stasielak, J
Stephan, M
Strazzeri, E
Stutz, A
Suarez, F
Suomijarvi, T
Supanitsky, AD
Susa, T
Sutherland, MS
Swain, J
Szadkowski, Z
Szuba, M
Tamashiro, A
Tapia, A
Tartare, M
Tascau, O
Ruiz, CGT
Teaciuc, R
Tegolo, D
Thao, NT
Thomas, D
Tiffenberg, J
Timmermans, C
Tiwari, DK
Tkaczyk, W
Peixoto, CJ
Tome, B
Tonachini, A
Travnicek, P
Tridapalli, DB
Tristram, G
Trovato, E
Tueros, M
Ulrich, R
Unger, M
Urban, M
Galicia, JFV
Valino, I
Valore, L
van den Berg, AM
Varela, E
Cardenas, BV
Vazquez, IR
Vazquez, RA
Veberic, D
Verzi, V
Vicha, J
Videla, M
Villasenor, L
Wahlberg, H
Wahrlich, P
Wainberg, O
Walz, D
Warner, D
Waton, AA
Weber, M
Weidenhaupt, K
Weindl, A
Westerhoff, S
Whelan, BJ
Wieczorek, G
Wieneke, L
Wilczynska, B
Wilczynski, H
Will, M
Williams, C
Winchen, T
Winnick, MG
Wommer, M
Wundheiler, B
Yamamoto, T
Yapici, T
Younk, P
Yuan, G
Yushkov, A
Zamorano, B
Zas, E
Zavrtanik, D
Zavrtanik, M
Zaw, I
Zepeda, A
Silva, NZ
Ziolkowski, N
AF Abreu, P.
Aglietta, M.
Ahn, E. J.
Albuquerque, L. F. M.
Allard, D.
Allekotte, I.
Allen, J.
Allison, P.
Alvarez Castio, J.
Alvarez-Muniz, J.
Ambrosio, M.
Amianei, A.
Anchordoqui, L.
Andringa, S.
Anticic, T.
Anzalone, A.
Aramo, C.
Arganda, E.
Arqueros, F.
Asorey, H.
Assis, P.
Aublin, J.
Ave, M.
Avenier, M.
Avila, G.
Baecker, T.
Balzer, M.
Barber, K. B.
Barbosa, A. F.
Bardenet, R.
Barroso, S. L. C.
Baughman, B.
Baeuml, J.
Beatty, J. J.
Becker, B. R.
Becker, K. H.
Belletoile, A.
Bellido, J. A.
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Wommer, M.
Wundheiler, B.
Yamamoto, T.
Yapici, T.
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CA Pierre Auger Collaboration
TI The effect of the geomagnetic field on cosmic ray energy estimates and
large scale anisotropy searches on data from the Pierre Auger
Observatory
SO JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
LA English
DT Article
DE ultra high energy cosmic rays; cosmic ray experiments; cosmic rays
detectors
ID EXTENSIVE AIR-SHOWERS; ARRAY; MODEL
AB We present a comprehensive study of the influence of the geomagnetic field on the energy estimation of extensive air showers with a zenith angle smaller than 60 degrees, detected at the Pierre Auger Observatory. the geomagnetic field induces an azimuthal modulation of the estimated energy of cosmic rays up to the similar to 2% level at large zenith angles. We present a method to account for this modulation of the reconstructed energy. We analyse the effect of the modulation on large scale anisotropy searches in the arrival direction distributions of cosmic rays. At a given energy, the geomagnetic effect is shown to induce a pseudo-dipolar pattern at the percent level in the declination distribution that needs to be accounted for.
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[Marquez Falcon, H. R.; Tiwari, D. K.; Villasenor, L.] Univ Michoacana, Morelia, Michoacan, Mexico.
[Alvarez Castio, J.; De Donato, C.; D'Olivo, J. C.; Tapia, I. Fajardo; Guzman, A.; Medina-Tanco, G.; Morales, B.; Nellen, L.; Silva Lopez, H. H.; Supanitsky, A. D.; Tavera Ruiz, C. G.; Valdes Galicia, J. F.; Vargas Cardenas, B.] Univ Nacl Autonoma Mexico, Mexico City 04510, DF, Mexico.
[Amianei, A.; Coppens, J.; de Jong, S. J.; Falcke, H.; Grebe, S.; Hoerandel, J. R.; Horneffer, A.; Jiraskova, S.; Kelley, J. L.; Nelles, A.; Schoorlemmer, H.; Timmermans, C.] Radboud Univ Nijmegen, IMAPP, NL-6525 ED Nijmegen, Netherlands.
[de Vries, K. D.; Docters, W.; Fraenkel, E. D.; Harmsma, S.; Scholten, O.; van den Berg, A. M.] Univ Groningen, Kernfysisch Versneller Inst, Groningen, Netherlands.
[Coppens, J.; de Jong, S. J.; Grebe, S.; Harmsma, S.; Nelles, A.; Petrovic, J.; Schoorlemmer, H.; Timmermans, C.] Nikhef, Amsterdam, Netherlands.
[Falcke, H.] ASTRON, Dwingeloo, Netherlands.
[Borodai, N.; Gora, D.; Homola, P.; Pekala, J.; Stasielak, J.; Wilczynska, B.; Wilczynski, H.] Inst Nucl Phys PAN, Krakow, Poland.
[Abreu, P.; Andringa, S.; Assis, P.; Brogueira, P.; Cazon, L.; Conceicao, R.; Espadanal, J.; Goncalves, P.; Pimenta, M.; Santo, C. E.; Santos, E.; Tome, B.] Univ Tecn Lisboa, LIP, P-1100 Lisbon, Portugal.
[Abreu, P.; Andringa, S.; Assis, P.; Brogueira, P.; Cazon, L.; Conceicao, R.; Espadanal, J.; Goncalves, P.; Pimenta, M.; Santo, C. E.; Santos, E.; Tome, B.] Univ Tecn Lisboa, Inst Super Tecn, P-1100 Lisbon, Portugal.
[Filipcic, A.; Veberic, D.; Zavrtanik, D.; Zavrtanik, M.] Jozef Stefan Inst, Ljubljana, Slovenia.
[Pastor, S.] Univ Valencia, CSIC, Inst Fis Corpuscular, Valencia, Spain.
[Arganda, E.; Arqueros, F.; Blanco, F.; Garcia-Pinto, D.; Ortiz, M.; Rosado, J.; Vazquez, I. R.] Univ Complutense Madrid, Madrid, Spain.
[Blanco, M.; del Peral, L.; Pacheco, N.; Rodriguez-Frias, M. D.; Ros, G.] Univ Alcala de Henares, Alcala De Henares, Madrid, Spain.
[Bueno, A.; Garcia Gamez, D.; Gascon, A.; Lozano Bahilo, J.; Molina-Bueno, L.; Navarro, J. L.; Navas, S.; Zamorano, B.] Univ Granada, Granada, Spain.
[Bueno, A.; Garcia Gamez, D.; Gascon, A.; Lozano Bahilo, J.; Molina-Bueno, L.; Navarro, J. L.; Navas, S.; Zamorano, B.] CAFPE, Granada, Spain.
[Alvarez-Muniz, J.; Lopez Agueera, A.; Olmos-Gilbaja, V. M.; Parente, G.; Parra, A.; Pelayo, R.; Riggi, S.; Rodrigues de Carvalho, W.; Rodriguez, G.; Rodriguez-Cabo, I.; Tueros, M.; Valino, I.; Vazquez, R. A.; Yushkov, A.; Zas, E.] Univ Santiago de Compostela, Santiago De Compostela, Spain.
[Mertsch, P.; Sarkar, S.] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford, England.
[Bruijn, R.; Cook, H.; Gozzini, S. R.; Knapp, J.; Lu, L.; Parsons, R. D.; Waton, A. A.] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England.
[Spinka, H.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Burton, R. E.; Covault, C. E.; Ferguson, A. P.] Case Western Reserve Univ, Cleveland, OH 44106 USA.
[Sarazin, F.; Schuster, D.; Wieneke, L.] Colorado Sch Mines, Golden, CO 80401 USA.
[Brack, J.; Dorofeev, A.; Fracchiolla, C. E.; Gookin, B.; Harton, J. L.; Mostafa, M.; Petrov, Y.; Salesa Greus, F.; Thomas, D.; Warner, D.] Colorado State Univ, Ft Collins, CO 80523 USA.
[Brown, W. C.] Colorado State Univ, Pueblo, CO USA.
[Ahn, E. J.; Chou, A.; Fazzini, N.; Glass, H.; Hojvat, C.; Kasper, P.; Kuehn, F.; Lebrun, P.; Mantsch, P.; Mazur, P. O.; Spinka, H.] Fermilab Natl Accelerator Lab, Batavia, IL USA.
[Keivani, A.; Matthews, J.; Shadkam, A.; Sutherland, M. S.; Yuan, G.] Louisiana State Univ, Baton Rouge, LA 70803 USA.
[Dhital, N.; Diaz, J. C.; Fick, B.; Kieckhafer, R. M.; Nitz, D.; Yapici, T.] Michigan Technol Univ, Houghton, MI 49931 USA.
[Allen, J.; Farrar, G.; Roberts, J.; Zaw, I.] NYU, New York, NY USA.
[Paul, T.; Swain, J.] Northeastern Univ, Boston, MA 02115 USA.
[Allison, P.; Baughman, B.; Beatty, J. J.; Grashorn, E.; Griffith, N.; Morris, C.; Stapleton, J.; Sutherland, M. S.] Ohio State Univ, Columbus, OH 43210 USA.
[Caballero-Mora, K. S.; Cheng, S. H.; Coutu, S.; Criss, A.; Sommers, P.; Ulrich, R.] Penn State Univ, University Pk, PA 16802 USA.
[Matthews, J.] So Univ, Baton Rouge, LA USA.
[Cronin, J.; Luis, P. Facal San; Hollon, N.; Ionita, F.; Kotera, K.; Monasor, M.; Olinto, A.; Privitera, P.; Rouille-d'Orfeuil, B.; Schmidt, F.; Williams, C.; Yamamoto, T.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Petermann, E.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA.
[Becker, B. R.; Gesterling, K.; Gold, M. S.; Hague, J. D.; Matthews, J. A. J.; Miller, W.; Phan, N.] Univ New Mexico, Albuquerque, NM 87131 USA.
[BenZvi, S.; Pfendner, C.; Westerhoff, S.] Univ Wisconsin, Madison, WI USA.
[Anchordoqui, L.] Univ Wisconsin, Milwaukee, WI 53201 USA.
[Diep, P. N.; Dong, P. N.; Nhung, P. T.; Thao, N. T.] Inst Nucl Sci & Technol, Hanoi, Vietnam.
RP Abreu, P (reprint author), Univ Lodz, PL-90131 Lodz, Poland.
RI Rodriguez Frias, Maria /A-7608-2015; Oliva, Pietro/K-5915-2015; Inst. of
Physics, Gleb Wataghin/A-9780-2017; De Mitri, Ivan/C-1728-2017;
Rodriguez Fernandez, Gonzalo/C-1432-2014; Nosek, Dalibor/F-1129-2017;
Gouffon, Philippe/I-4549-2012; de Almeida, Rogerio/L-4584-2016; De
Domenico, Manlio/B-5826-2014; Abreu, Pedro/L-2220-2014; Navas,
Sergio/N-4649-2014; Assis, Pedro/D-9062-2013; Arqueros,
Fernando/K-9460-2014; Conceicao, Ruben/L-2971-2014; Beatty,
James/D-9310-2011; Sao Carlos Institute of Physics,
IFSC/USP/M-2664-2016; Guarino, Fausto/I-3166-2012; Bonino,
Raffaella/S-2367-2016; Carvalho Jr., Washington/H-9855-2015; Espadanal,
Joao/I-6618-2015; De Donato, Cinzia/J-9132-2015; Vazquez, Jose
Ramon/K-2272-2015; Martello, Daniele/J-3131-2012; Insolia,
Antonio/M-3447-2015; de Mello Neto, Joao/C-5822-2013; Lozano-Bahilo,
Julio/F-4881-2016; scuderi, mario/O-7019-2014; zas, enrique/I-5556-2015;
Sarkar, Subir/G-5978-2011; Moura Santos, Edivaldo/K-5313-2016; Tome,
Bernardo/J-4410-2013; Espirito Santo, Maria Catarina/L-2341-2014;
Pimenta, Mario/M-1741-2013; Ros, German/L-4764-2014; Di Giulio,
Claudio/B-3319-2015; Bueno, Antonio/F-3875-2015; Parente,
Gonzalo/G-8264-2015; dos Santos, Eva/N-6351-2013; Alvarez-Muniz,
Jaime/H-1857-2015; Rosado, Jaime/K-9109-2014; Valino, Ines/J-8324-2012;
Schovanek, Petr/G-7117-2014; Vicha, Jakub/G-8440-2014; Travnicek,
Petr/G-8814-2014; Smida, Radomir/G-6314-2014; Ridky, Jan/H-6184-2014;
Chudoba, Jiri/G-7737-2014; Horvath, Pavel/G-6334-2014; Pech,
Miroslav/G-5760-2014; Todero Peixoto, Carlos Jose/G-3873-2012; Garcia
Pinto, Diego/J-6724-2014; Pastor, Sergio/J-6902-2014; Chiavassa,
Andrea/A-7597-2012; Verzi, Valerio/B-1149-2012; Chinellato, Carola
Dobrigkeit /F-2540-2011; Fauth, Anderson/F-9570-2012; de souza,
Vitor/D-1381-2012; Shellard, Ronald/G-4825-2012; Pesce,
Roberto/G-5791-2011; Caramete, Laurentiu/C-2328-2011; Petrolini,
Alessandro/H-3782-2011; Muller, Marcio Aparecido/H-9112-2012; D'Urso,
Domenico/I-5325-2012; Bleve, Carla/J-2521-2012; Brogueira,
Pedro/K-3868-2012; Chinellato, Jose Augusto/I-7972-2012; Yushkov,
Alexey/A-6958-2013; Falcke, Heino/H-5262-2012; Ebr, Jan/H-8319-2012;
Anjos, Joao/C-8335-2013; Nierstenhofer, Nils/H-3699-2013; Goncalves,
Patricia /D-8229-2013; Prouza, Michael/F-8514-2014; Mandat,
Dusan/G-5580-2014; Bohacova, Martina/G-5898-2014; Cazon,
Lorenzo/G-6921-2014
OI Garcia, Beatriz/0000-0003-0919-2734; Dembinski,
Hans/0000-0003-3337-3850; Del Peral, Luis/0000-0003-2580-5668; Coutu,
Stephane/0000-0003-2923-2246; Bonino, Raffaella/0000-0002-4264-1215;
Rizi, Vincenzo/0000-0002-5277-6527; Mussa, Roberto/0000-0002-0294-9071;
Ulrich, Ralf/0000-0002-2535-402X; Knapp, Johannes/0000-0003-1519-1383;
Tiwari, Dhirendra Kumar/0000-0002-6754-3398; Mertsch,
Philipp/0000-0002-2197-3421; Zamorano, Bruno/0000-0002-4286-2835;
Petrera, Sergio/0000-0002-6029-1255; Mantsch, Paul/0000-0002-8382-7745;
Aramo, Carla/0000-0002-8412-3846; Anzalone, Anna/0000-0003-1849-198X; de
Jong, Sijbrand/0000-0002-3120-3367; Marsella,
Giovanni/0000-0002-3152-8874; La Rosa, Giovanni/0000-0002-3931-2269;
Asorey, Hernan/0000-0002-4559-8785; Andringa, Sofia/0000-0002-6397-9207;
Cataldi, Gabriella/0000-0001-8066-7718; Aglietta,
Marco/0000-0001-8354-5388; Maccarone, Maria
Concetta/0000-0001-8722-0361; Kothandan, Divay/0000-0001-9048-7518;
Castellina, Antonella/0000-0002-0045-2467; maldera,
simone/0000-0002-0698-4421; Matthews, James/0000-0002-1832-4420; Yuan,
Guofeng/0000-0002-1907-8815; Gomez Berisso, Mariano/0000-0001-5530-0180;
Salamida, Francesco/0000-0002-9306-8447; Catalano,
Osvaldo/0000-0002-9554-4128; Ravignani, Diego/0000-0001-7410-8522;
Segreto, Alberto/0000-0001-7341-6603; Navarro Quirante, Jose
Luis/0000-0002-9915-1735; Rodriguez Frias, Maria /0000-0002-2550-4462;
Oliva, Pietro/0000-0002-3572-3255; De Mitri, Ivan/0000-0002-8665-1730;
Rodriguez Fernandez, Gonzalo/0000-0002-4683-230X; Nosek,
Dalibor/0000-0001-6219-200X; Sigl, Guenter/0000-0002-4396-645X; Gouffon,
Philippe/0000-0001-7511-4115; de Almeida, Rogerio/0000-0003-3104-2724;
De Domenico, Manlio/0000-0001-5158-8594; Abreu,
Pedro/0000-0002-9973-7314; Navas, Sergio/0000-0003-1688-5758; Assis,
Pedro/0000-0001-7765-3606; Arqueros, Fernando/0000-0002-4930-9282;
Conceicao, Ruben/0000-0003-4945-5340; Beatty, James/0000-0003-0481-4952;
Guarino, Fausto/0000-0003-1427-9885; Carvalho Jr.,
Washington/0000-0002-2328-7628; Espadanal, Joao/0000-0002-1301-8061; De
Donato, Cinzia/0000-0002-9725-1281; Vazquez, Jose
Ramon/0000-0001-9217-5219; Martello, Daniele/0000-0003-2046-3910;
Insolia, Antonio/0000-0002-9040-1566; de Mello Neto,
Joao/0000-0002-3234-6634; Lozano-Bahilo, Julio/0000-0003-0613-140X;
scuderi, mario/0000-0001-9026-5317; zas, enrique/0000-0002-4430-8117;
Sarkar, Subir/0000-0002-3542-858X; Moura Santos,
Edivaldo/0000-0002-2818-8813; Tome, Bernardo/0000-0002-7564-8392;
Espirito Santo, Maria Catarina/0000-0003-1286-7288; Pimenta,
Mario/0000-0002-2590-0908; Ros, German/0000-0001-6623-1483; Di Giulio,
Claudio/0000-0002-0597-4547; Bueno, Antonio/0000-0002-7439-4247;
Parente, Gonzalo/0000-0003-2847-0461; dos Santos,
Eva/0000-0002-0474-8863; Alvarez-Muniz, Jaime/0000-0002-2367-0803;
Rosado, Jaime/0000-0001-8208-9480; Valino, Ines/0000-0001-7823-0154;
Ridky, Jan/0000-0001-6697-1393; Horvath, Pavel/0000-0002-6710-5339;
Todero Peixoto, Carlos Jose/0000-0003-3669-8212; Garcia Pinto,
Diego/0000-0003-1348-6735; Chinellato, Carola Dobrigkeit
/0000-0002-1236-0789; Fauth, Anderson/0000-0001-7239-0288; Shellard,
Ronald/0000-0002-2983-1815; Petrolini, Alessandro/0000-0003-0222-7594;
D'Urso, Domenico/0000-0002-8215-4542; Brogueira,
Pedro/0000-0001-6069-4073; Chinellato, Jose Augusto/0000-0002-3240-6270;
Falcke, Heino/0000-0002-2526-6724; Ebr, Jan/0000-0001-8807-6162;
Goncalves, Patricia /0000-0003-2042-3759; Prouza,
Michael/0000-0002-3238-9597; Cazon, Lorenzo/0000-0001-6748-8395
FU Comision Nacional de Energia Atomica; Fundacion Antorchas; Gobierno De
La Provincia de Mendoza; Municipalidad de Malargue; NDM Holdings; Valle
Las Lenas; Australian Research Council; Conselho Nacional de
Desenvolvimento Cientifico e Tecnologico (CNPq); Financiadora de Estudos
e Projetos (FINEP); Fundacao de Amparo a Pesquisa do Estado de Rio de
Janeiro (FAPERJ); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo
(FAPESP); Ministerio de Ciencia e Tecnologia (MCT), Brazil; AVCR
[AV0Z10.100502, AV0Z10100522, GAAV KJB100100904, MSMT-CR LA08016, LC527,
1M06002, MSN10021620859]; Czech Republic; Centre de Calcul [IN2P3/CNRS];
Centre National de la Recherche; Scientifique (CNRS); Conseil Regional
Ile-de-France; Departement Physique Nucleaire et Corpusculaire
[PNC-IN2P3/CNRS]; Departement Sciences de l'Univers (SDU-INSU/CNR.S),
France; Bundesministerium far Bildung mid Forschung (BMBF); Deutsche
Forschungsgenteinschaft (DFG); Finanzministerium Baden-Wurttemberg;
Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF); Ministerium
fur Wissenschaft und Forschung; Nordrhein-Westfalen; Forschung und
Kunst, Liaden-Wurttemberg, Germany; Istituto Nazionale di Fisica
Nucleate Ministero dell'Istruzione, dell'Universita e della Ricerca
(MIUR), Italy; Consejo Nacional de Ciencia y Tecnologia (CONACYT),
Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse
Organisatie voor \\Tetenschappelijk Onderzoek (NNVO), Stichting voor
Rindamenteel Onderzoelc der Materie (FOM), Netherlands; Ministry of
Science and Higher Education, Poland [N N202 200239, N N202 207238];
Fundacao para a Ciencia e a 'Tecnologia, Portugal; Ministry for Higher
Education, Science, and Technology, Slovenian Research Agency, Slovenia;
Comunidad de Madrid, Consejerfa de Educacion de la Comunidad de Castilla
La Mancha; FEDER; Ministerio de Ciencia e Innovacion; CPAN; Xunta de
Galicia, Spain; Science and Technology Facilities Council, United
Kingdom; Department of Energy [DE-AC02-07CH11359, DE-FR02-04ER41300];
National Science Foundation [0450696]; Grainger Foundation USA; ALFA-EC
/ HELEN; European Union [MEIF-CT-2005-025057, PIEF-GA-2008-220240];
UNESCO
FX We are very grateful to the following agencies and organizations for
financial support: Comision Nacional de Energia Atomica, Fundacion
Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de
Malargue, NDM Holdings and Valle Las Lenas, in gratitude for their
continuing cooperation over land access, Argentina; the Australian
Research Council; Conselho Nacional de Desenvolvimento Cientifico e
Tecnologico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundacao
de Amparo a Pesquisa do Estado de Rio de Janeiro (FAPERJ), Fundacao de
Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Ministerio de Ciencia
e Tecnologia (MCT), Brazil; AVCR AV0Z10.100502 and AV0Z10100522, GAAV
KJB100100904, MSMT-CR LA08016, LC527, 1M06002, and MSN10021620859, Czech
Republic; Centre de Calcul IN2P3/CNRS, Centre National de la Recherche,.
Scientifique (CNRS). Conseil Regional Ile-de-France, Departement
Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS), Departement
Sciences de l'Univers (SDU-INSU/CNR.S), France; Bundesministerium far
Bildung mid Forschung (BMBF), Deutsche Forschungsgenteinschaft (DFG),
Finanzministerium Baden-Wurttemberg, Helmholtz-Gemeinschaft Deutscher
Forschungszentren (HGF), Ministerium fur Wissenschaft und Forschung,
Nordrhein-Westfalen, Ministerium fur Wissenschaft, Forschung und Kunst,
Liaden-Wurttemberg, Germany; Istituto Nazionale di Fisica Nucleate
Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR),
Italy; Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico;
Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie
voor \\Tetenschappelijk Onderzoek (NNVO), Stichting voor Rindamenteel
Onderzoelc der Materie (FOM), Netherlands; Ministry of Science and
Higher Education, Grant Nos. IN N202 200239 and N N202 207238, Poland;
Fundacao para a Ciencia e a 'Tecnologia, Portugal; Ministry for Higher
Education, Science, and Technology, Slovenian Research Agency, Slovenia;
Comunidad de Madrid, Consejerfa de Educacion de la Comunidad de Castilla
La Mancha, FEDER funds, Ministerio de Ciencia e Innovacion and
Consolider-Ingenio 2010 (CPAN), Xunta de Galicia, Spain; Science and
Technology Facilities Council, United Kingdom; Department of Energy,
Contract Nos. DE-AC02-07CH11359, DE-FR02-04ER41300, National Science
Foundation, Grant No. 0450696, The Grainger Foundation USA; ALFA-EC /
HELEN, European Union 6th Framework Program, Grant No.
MEIF-CT-2005-025057, European Union 7th Framework Program, Grant No.
PIEF-GA-2008-220240 and UNESCO.
NR 22
TC 6
Z9 6
U1 0
U2 25
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1475-7516
J9 J COSMOL ASTROPART P
JI J. Cosmol. Astropart. Phys.
PD NOV
PY 2011
IS 11
AR 022
DI 10.1088/1475-7516/2011/11/022
PG 22
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 863CV
UT WOS:000298141300022
ER
PT J
AU Farina, M
Pappadopulo, D
Strumia, A
Volansky, T
AF Farina, Marco
Pappadopulo, Duccio
Strumia, Alessandro
Volansky, Tomer
TI Can CoGeNT and DAMA modulations be due to Dark Matter?
SO JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
LA English
DT Article
DE dark matter theory; dark matter experiments
ID NAI(TL)
AB We explore the dark matter interpretation of the anomalies claimed by the DAMA and COGENT experiments, in conjunction with the various null direct-detection experiments. An independent analysis of the COGENT data is employed and several experimental and astrophysical uncertainties are considered. Various phenomenological models are studied, including isospin violating interactions, momentum-dependent form factors, velocity-dependent form factors, inelastic scatterings (endothermic and exothermic) and channeling. We find that the severe tension between the anomalies and the null results can be ameliorated but not eliminated, unless extreme assumptions are made.
C1 [Farina, Marco] Scuola Normale Super Pisa, I-56126 Pisa, Italy.
[Farina, Marco; Strumia, Alessandro] Ist Nazl Fis Nucl, I-56126 Pisa, Italy.
[Pappadopulo, Duccio] Ecole Polytech Fed Lausanne, Inst Theorie Phenomenes Phys, CH-1015 Lausanne, Switzerland.
[Strumia, Alessandro] Univ Pisa, Dipartimento Fis, Pisa, Italy.
[Strumia, Alessandro] NICPB, Tallinn, Estonia.
[Volansky, Tomer] Univ Calif Berkeley, Dept Phys, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA.
[Volansky, Tomer] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Theoret Phys Grp, Berkeley, CA 94720 USA.
RP Farina, M (reprint author), Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy.
EM marco.farina@sns.it; duccio.pappadopulo@epfl.ch; astrumia@df.unipi.it;
tomerv@post.tau.ac.il
FU EU ITN Unification in the LHC Era [PITN-GA-2009-237920 (UNILHC)]; ESF
[MTT8, SF0690030s09]; Swiss National Science Foundation [200021-116372];
Office of Science, Office of High Energy and Nuclear Physics, of the US
Department of Energy [DE-AC02- 05CH11231]
FX We thank Juan Collar, Mariangela Lisanti, Jeremy Mardon and Tracy
Slatyer for useful discussions. We wish to thank the authors of [64] for
pointing out an error in section 3.2 in an earlier version of the paper.
This work was supported by the EU ITN Unification in the LHC Era,
contract PITN-GA-2009-237920 (UNILHC). The work of AS was supported by
the ESF grant MTT8 and by SF0690030s09 project. The work of DP was
supported by the Swiss National Science Foundation under contract No.
200021-116372. The work of TV was supported in part by the Director,
Office of Science, Office of High Energy and Nuclear Physics, of the US
Department of Energy under Contract DE-AC02- 05CH11231. AS thanks the
invitation from the Berkeley physics department, where this work was
initiated.
NR 73
TC 32
Z9 32
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1475-7516
J9 J COSMOL ASTROPART P
JI J. Cosmol. Astropart. Phys.
PD NOV
PY 2011
IS 11
AR 010
DI 10.1088/1475-7516/2011/11/010
PG 29
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 863CV
UT WOS:000298141300010
ER
PT J
AU Gubitosi, G
Migliaccio, M
Pagano, L
Amelino-Camelia, G
Melchiorri, A
Natoli, P
Polenta, G
AF Gubitosi, Giulia
Migliaccio, Marina
Pagano, Luca
Amelino-Camelia, Giovanni
Melchiorri, Alessandro
Natoli, Paolo
Polenta, Gianluca
TI Using CMB data to constrain non-isotropic Planck-scale modifications to
Electrodynamics
SO JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
LA English
DT Article
DE CMBR polarisation; cosmological parameters from CMBR; quantum gravity
phenomenology; CMBR theory
ID PROBE WMAP OBSERVATIONS; QUANTUM-GRAVITY; VIOLATION; LIMITS
AB We develop a method to constrain non-isotropic features of Cosmic Microwave Background (CMB) polarization, of a type expected to arise in some models describing quantum gravity effects on light propagation. We describe the expected signatures of this kind of anmalous light propagation on CMB photons, showing that it will produce a non-isotropic birefringence effect, i.e. a rotation of the CMB polarization direction whose observed amount depends in a peculiar way on the observation direction. We also show that the sensitivity levels expected for CMB polarization studies by the Planck satellite are sufficient for testing these effects if, as assumed in the quantum-gravity literature, their magnitude is set by the minute Planck length.
C1 [Gubitosi, Giulia] Berkeley Lab, Berkeley, CA 94720 USA.
[Gubitosi, Giulia] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Migliaccio, Marina] Univ Roma Tor Vergata, Rome, Italy.
[Pagano, Luca] CALTECH, Jet Prop Lab, Pasadena, CA USA.
[Amelino-Camelia, Giovanni; Melchiorri, Alessandro] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
Ist Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy.
[Natoli, Paolo] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy.
INAF IASF Bologna, Bologna, Italy.
[Natoli, Paolo; Polenta, Gianluca] ESRIN, Agenzia Spaziale Italiana Sci Data Ctr, Frascati, Italy.
[Polenta, Gianluca] INAF Osservatorio Astron Roma, I-00040 Monte Porzio Catone, Italy.
RP Gubitosi, G (reprint author), Berkeley Lab, Berkeley, CA 94720 USA.
EM giulia.gubitosi@berkeley.edu; Marina.Migliaccio@roma2.infn.it;
luca.pagano@jpl.nasa.gov; giovanni.amelino-camelia@roma1.infn.it;
alessandro.melchiorri@roma1.infn.it; paolo.natoli@roma2.infn.it;
gianluca.polenta@asdc.asi.it
RI Gubitosi, Giulia/J-3142-2012;
OI Polenta, Gianluca/0000-0003-4067-9196; Melchiorri,
Alessandro/0000-0001-5326-6003; Gubitosi, Giulia/0000-0001-6107-639X
FU National Aeronautics and Space Administration; PRIN-INAF; Italian Space
Agency through the ASI [Euclid-IC (I/031/10/0)]; DOE
[DE-AC03-76SF00098]; CASPER (Rome, Italy); ASI
FX Part of the research of was carried out at the Jet Propulsion
Laboratory. California Institute of Technology, under a contract with
the National Aeronautics and Space Administration.; This work is
supported by PRIN-INAF, "Astronomy probes fundamental physics". Support
was given by the Italian Space Agency through the ASI contracts
Euclid-IC (I/031/10/0).; This research used resources at NERSC,
supported by the DOE under Contract No. DE-AC03-76SF00098, and at CASPER
(Rome, Italy: special thanks are due to NI. Botti and F. Massaioli).; We
also acknowledge support from ASI Contract Planck LFI activity of Phase
E2.
NR 32
TC 4
Z9 4
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1475-7516
J9 J COSMOL ASTROPART P
JI J. Cosmol. Astropart. Phys.
PD NOV
PY 2011
IS 11
AR 003
DI 10.1088/1475-7516/2011/11/003
PG 19
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 863CV
UT WOS:000298141300003
ER
PT J
AU Seljak, U
McDonald, P
AF Seljak, Uros
McDonald, Patrick
TI Distribution function approach to redshift space distortions
SO JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
LA English
DT Article
DE power spectrum; redshift surveys
ID POWER SPECTRUM; GALAXIES
AB We develop a phase space distribution function approach to redshift space distortions (RSD), in which the redshift space density can be written as a sum over velocity moments of the distribution function. These moments are density weighted and have well defined physical interpretation: their lowest orders are density, momentum density, and stress energy density. The series expansion is convergent if k mu u/aH < 1, where k is the wavevector, H the Hubble parameter, u the typical gravitational velocity and mu - cos theta, with theta being the angle between the Fourier mode and the line of sight. We perform an expansion of these velocity moments into helicity modes, which are eigenmodes under rotation around the axis of Fourier mode direction, generalizing the scalar, vector, tensor decomposition of perturbations to an arbitrary order. We show that only equal helicity moments correlate and derive the angular dependence of the individual contribution's to the redshift space power spectrum. We show that the dominant term of mu(2) dependence on large scales is the cross-correlation between the density and scalar part of momentum density, which can be related to the time derivative of the matter power spectrum. Additional terms contributing to 2 and dominating on small scales are the vector part of momentum density-momentum density correlations, the energy density-density correlations, and the scalar part of anisotropic stress density-density correlations. The second term is what is usually associated with the small scale Fingers-of-God damping and always suppresses power, but the first term conies with the opposite sign and always adds power. Similarly, we identify 7 terms contributing to mu(4) dependence. Some of the advantages of the distribution function approach are that the series expansion converges on large scales and remains valid in no situations. We finish with a brief discussion of implications for RSD in galaxies relative to dark matter, highlighting the issue of scale dependent bias of velocity moments correlators.
C1 [Seljak, Uros] Univ Zurich, Inst Theoret Phys, CH-8057 Zurich, Switzerland.
[Seljak, Uros; McDonald, Patrick] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Seljak, Uros] Univ Calif Berkeley, Dept Phys, Dept Astron, Berkeley, CA 94720 USA.
[Seljak, Uros] Ewha Womans Univ, Inst Early Universe, Seoul 120750, South Korea.
[McDonald, Patrick] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Seljak, U (reprint author), Univ Zurich, Inst Theoret Phys, CH-8057 Zurich, Switzerland.
EM useljak@berkeley.edu; pvmcdonald@lbl.gov
OI McDonald, Patrick/0000-0001-8346-8394
FU DOE; Swiss National Foundation [200021-116696/1]; WCU [R32-10130]
FX We thank Teppei Okumura and Zvonimir Vlah for helpful discussions. This
work is supported by the DOE, the Swiss National Foundation under
contract 200021-116696/1 and WCU grant R32-10130.
NR 21
TC 42
Z9 42
U1 2
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1475-7516
J9 J COSMOL ASTROPART P
JI J. Cosmol. Astropart. Phys.
PD NOV
PY 2011
IS 11
AR 039
DI 10.1088/1475-7516/2011/11/039
PG 17
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 863CV
UT WOS:000298141300039
ER
PT J
AU Zhang, QF
Karney, B
Pejovic, S
AF Zhang, Qinfen (Katherine)
Karney, Bryan
Pejovic, Stanislav
TI Nonreflective Boundary Design via Remote Sensing and
Proportional-Integral-Derivative Control Valve
SO JOURNAL OF HYDRAULIC ENGINEERING-ASCE
LA English
DT Article
DE Design; Energy dissipation; Hydraulic transients; Mathematical models;
Pipe flow; Unsteady flow; Water hammer; Water pipelines; Wave
propagation; Wave reflection; Resonance
ID PIPE FRICTION; TRANSIENT; TURBULENT; FLOW
AB This paper develops the concept of a nonreflective (or semireflective) boundary condition using the combination of a remote sensor and a control system to modulate a relief valve. The essential idea is to sense the pressure change at a remote location and then to use the measured data to adjust the opening of an active control valve at the end of the line to eliminate or attenuate the wave reflections at the valve, thus controlling system transient pressures. This novel idea is shown here through numerical simulation to have considerable potential for transient protection. Using this model, wave reflections and resonance can be effectively eliminated for frictionless pipelines or initial no-flow conditions and can be better controlled in more realistic pipelines for a range of transient disturbances. In addition, the features of even-order harmonics and nonreflective boundary conditions during steady oscillation, obtained through time domain transient analysis, are verified by hydraulic impedance analysis in the frequency domain.DOI:10.1061/(ASCE)HY.1943-7900.0000403. (C) 2011 American Society of Civil Engineers.
C1 [Zhang, Qinfen (Katherine)] Oak Ridge Natl Lab UT Battelle LLC, Oak Ridge, TN 37831 USA.
[Karney, Bryan] Univ Toronto, Dept Civil Engn, Toronto, ON M5S 1A4, Canada.
RP Zhang, QF (reprint author), Oak Ridge Natl Lab UT Battelle LLC, 1 Bethel Valley Rd,POB 2008, Oak Ridge, TN 37831 USA.
EM Zhangq1@ornl.gov; karney@ecf.utoronto.ca; pejovics@asme.org
RI Zhang, Qin Fen/C-9648-2013
NR 22
TC 1
Z9 1
U1 0
U2 3
PU ASCE-AMER SOC CIVIL ENGINEERS
PI RESTON
PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA
SN 0733-9429
J9 J HYDRAUL ENG-ASCE
JI J. Hydraul. Eng.-ASCE
PD NOV
PY 2011
VL 137
IS 11
BP 1477
EP 1489
DI 10.1061/(ASCE)HY.1943-7900.0000403
PG 13
WC Engineering, Civil; Engineering, Mechanical; Water Resources
SC Engineering; Water Resources
GA 864MS
UT WOS:000298244900017
ER
PT J
AU Zhang, QF
Karney, B
Suo, LS
Colombo, AF
AF Zhang, Qinfen (Katherine)
Karney, Bryan
Suo, Lisheng
Colombo, Andrew F.
TI Stochastic Analysis of Water Hammer and Applications in
Reliability-Based Structural Design for Hydro Turbine Penstocks
SO JOURNAL OF HYDRAULIC ENGINEERING-ASCE
LA English
DT Article
DE Hydropower plant; Transient event; Water hammer; Load rejection; Random
factors; Stochastic analysis model; Monte Carlo simulation; Random
variable loads; Reliability-based structural design; Normative load;
Partial load factor; Safety factor
ID DISTRIBUTION-SYSTEM DESIGN; OPEN-CHANNEL FLOW; RISK-BASED DESIGN;
DISTRIBUTION NETWORKS; NUMERICAL-SIMULATION; HYDRAULIC STRUCTURES;
OPTIMIZATION MODEL; FLUVIAL HYDRAULICS; PIPE NETWORKS; SEWER SYSTEMS
AB The randomness of transient events, and the variability of its associated dependencies, ensures that water hammer and surges in a pressurized pipe system are inherently stochastic. To improve reliability-based structural design, a stochastic transient model is developed for water conveyance systems in hydropower plants. The statistical characteristics of key factors in boundary conditions, initial states, and hydraulic system parameters are analyzed on the basis of a large record of observed data from hydro plants in China; the probability distributions of annual maximum water hammer pressures are then simulated by using a Monte Carlo method and verified with an analytical probabilistic model for a simplified pipe system. The key loading characteristics (annual occurrence, sustaining period, and probability distribution) are introduced and discussed. By using an example of penstock structural design, it is shown that the total water hammer pressure should be split into two individual random variable loads-the steady/static pressure and the water hammer pressure rise during transients-and that different partial load factors should be applied to individual loads to reflect specific physical and stochastic features. Particularly, the normative load (usually the unfavorable value at a 95-percentage level) for steady/static hydraulic pressure should be taken from the probability distribution of its maximum values over a pipe's design life, whereas for the water hammer pressure rise, as the second variable load, the probability distribution of its annual maximum values determines its normative load. DOI: 10.1061/(ASCE)HY.1943-7900.0000414. (C) 2011 American Society of Civil Engineers.
C1 [Zhang, Qinfen (Katherine)] Oak Ridge Natl Lab UT Battle LLC, Oak Ridge, TN 37831 USA.
[Zhang, Qinfen (Katherine)] Riverbank Power Inc, Toronto, ON, Canada.
[Karney, Bryan] Univ Toronto, Dept Civil Engn, Toronto, ON M5S 1A4, Canada.
[Suo, Lisheng] Hohai Univ, Nanjing, Peoples R China.
[Colombo, Andrew F.] Univ Toronto, Dept Civil Engn, Toronto, ON M5S 1A4, Canada.
RP Zhang, QF (reprint author), Oak Ridge Natl Lab UT Battle LLC, 1 Bethel Valley Rd,POB 2008, Oak Ridge, TN 37831 USA.
EM Zhangq1@ornl.gov; karney@ecf.utoronto.ca; lssuo@mwr.gov.cn;
andrew.colombo@utoronto.ca
RI Zhang, Qin Fen/C-9648-2013
NR 85
TC 10
Z9 10
U1 0
U2 18
PU ASCE-AMER SOC CIVIL ENGINEERS
PI RESTON
PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA
SN 0733-9429
J9 J HYDRAUL ENG-ASCE
JI J. Hydraul. Eng.-ASCE
PD NOV
PY 2011
VL 137
IS 11
BP 1509
EP 1521
DI 10.1061/(ASCE)HY.1943-7900.0000414
PG 13
WC Engineering, Civil; Engineering, Mechanical; Water Resources
SC Engineering; Water Resources
GA 864MS
UT WOS:000298244900020
ER
PT J
AU Annala, G
Banerjee, B
Barker, B
Boes, T
Bowden, M
Briegel, C
Cancelo, G
Duerling, G
Forster, B
Foulkes, S
Haynes, B
Hendricks, B
Kasza, T
Kutschke, R
Mahlum, R
Martens, M
Olson, M
Pavlicek, V
Piccoli, L
Prieto, P
Steimel, J
Treptow, K
Votava, M
Voy, D
Wendt, M
Wolbers, S
Zhang, D
AF Annala, G.
Banerjee, B.
Barker, B.
Boes, T.
Bowden, M.
Briegel, C.
Cancelo, G.
Duerling, G.
Forster, B.
Foulkes, S.
Haynes, B.
Hendricks, B.
Kasza, T.
Kutschke, R.
Mahlum, R.
Martens, M.
Olson, M.
Pavlicek, V.
Piccoli, L.
Prieto, P.
Steimel, J.
Treptow, K.
Votava, M.
Voy, D.
Wendt, M.
Wolbers, S.
Zhang, D.
TI Tevatron beam position monitor upgrade
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Accelerator Applications; Beam-line instrumentation (beam position and
profile monitors; beam-intensity monitors; bunch length monitors)
AB This paper describes the development of a digital-based Beam Position System which was designed, developed, and adapted for the Tevatron during Collider Run II.
C1 [Annala, G.; Banerjee, B.; Barker, B.; Boes, T.; Bowden, M.; Briegel, C.; Cancelo, G.; Duerling, G.; Forster, B.; Foulkes, S.; Haynes, B.; Hendricks, B.; Kasza, T.; Kutschke, R.; Mahlum, R.; Martens, M.; Olson, M.; Pavlicek, V.; Piccoli, L.; Prieto, P.; Steimel, J.; Treptow, K.; Votava, M.; Voy, D.; Wendt, M.; Wolbers, S.; Zhang, D.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Prieto, P (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM Prieto@FNAL.gov
OI Kutschke, Robert/0000-0001-9315-2879
FU Fermi Research Alliance, LLC [De-AC02-07CH11359]; United States
Department of Energy [De-AC02-07CH11359]
FX Work supported by Fermi Research Alliance, LLC under Contract No.
De-AC02-07CH11359 with the United States Department of Energy.
NR 6
TC 3
Z9 3
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2011
VL 6
AR T11005
DI 10.1088/1748-0221/6/11/T11005
PG 21
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA 865OO
UT WOS:000298320400049
ER
PT J
AU Baumbaugh, A
Briegel, C
Brown, BC
Capista, D
Drennan, C
Fellenz, B
Knickerbocker, K
Lewis, JD
Marchionni, A
Needles, C
Olson, M
Pordes, S
Shi, Z
Still, D
Thurman-Keup, R
Utes, M
Wu, J
AF Baumbaugh, A.
Briegel, C.
Brown, B. C.
Capista, D.
Drennan, C.
Fellenz, B.
Knickerbocker, K.
Lewis, J. D.
Marchionni, A.
Needles, C.
Olson, M.
Pordes, S.
Shi, Z.
Still, D.
Thurman-Keup, R.
Utes, M.
Wu, J.
TI The upgraded data acquisition system for beam loss monitoring at the
Fermilab Tevatron and Main Injector
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Instrumentation for particle accelerators and storage rings - high
energy (linear accelerators, synchrotrons); Beam-line instrumentation
(beam position and profile monitors; beam-intensity monitors; bunch
length monitors)
AB A VME-based data acquisition system for beam-loss monitors has been developed and is in use in the Tevatron and Main Injector accelerators at the Fermilab complex. The need for enhanced beam-loss protection when the Tevatron is operating in collider-mode was the main driving force for the new design. Prior to the implementation of the present system, the beam-loss monitor system was disabled during collider operation and protection of the Tevatron magnets relied on the quench protection system. The new Beam-Loss Monitor system allows appropriate abort logic and thresholds to be set over the full set of collider operating conditions. The system also records a history of beam-loss data prior to a beam-abort event for post-abort analysis. Installation of the Main Injector system occurred in the fall of 2006 and the Tevatron system in the summer of 2007. Both systems were fully operation by the summer of 2008. In this paper we report on the overall system design, provide a description of its normal operation, and show a number of examples of its use in both the Main Injector and Tevatron.
C1 [Baumbaugh, A.; Briegel, C.; Brown, B. C.; Capista, D.; Drennan, C.; Fellenz, B.; Knickerbocker, K.; Lewis, J. D.; Marchionni, A.; Needles, C.; Olson, M.; Pordes, S.; Shi, Z.; Still, D.; Thurman-Keup, R.; Utes, M.; Wu, J.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Olson, M (reprint author), Fermilab Natl Accelerator Lab, Box 500, Batavia, IL 60510 USA.
EM molson@fnal.gov
OI Marchionni, Alberto/0000-0003-3039-9537; Drennan,
Craig/0000-0003-3302-3789
FU Fermi Research Alliance, LLC [DE-AC02-07CH11359]; United States
Department of Energy [DE-AC02-07CH11359]
FX Work supported by Fermi Research Alliance, LLC under Contract No.
DE-AC02-07CH11359 with the United States Department of Energy.
NR 19
TC 2
Z9 2
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2011
VL 6
AR T11006
DI 10.1088/1748-0221/6/11/T11006
PG 24
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA 865OO
UT WOS:000298320400050
ER
PT J
AU Crisp, J
Fellenz, B
AF Crisp, J.
Fellenz, B.
TI Tevatron Resistive Wall Current Monitor
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Instrumentation for particle accelerators and storage rings - high
energy (linear accelerators, synchrotrons); Beam-line instrumentation
(beam position and profile monitors; beam-intensity monitors; bunch
length monitors)
AB Resistive Wall Current Monitors (RWCM) were designed and built for the Fermilab Tevatron (Tev) project. These devices measure longitudinal beam current from 3 KHz to 6 GHz with 1.34 ohm gap impedance. There are two RWCM's installed a few feet apart in the Tevatron, upstream RWCM is used for general purpose use, downstream RWCMis dedicated for longitudinal parameters of coalesced beam bunches and bunch intensities. The design provides a calibration or test port for injecting test signals. Microwave absorber material is used to reduce interference from spurious electromagnetic waves traveling inside the beam pipe. This paper will do an overview how the RWCM was designed and its test results.
C1 [Fellenz, B.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Crisp, J.] Michigan State Univ, Facil Rare Isotope Beams, E Lansing, MI 48824 USA.
RP Fellenz, B (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM fellenz@fnal.gov
FU Fermi Research Alliance, LLC [DE-AC02-07CH11359]; United States
Department of Energy [DE-AC02-07CH11359]
FX Work supported by Fermi Research Alliance, LLC under Contract No.
DE-AC02-07CH11359 with the United States Department of Energy.
NR 10
TC 3
Z9 3
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2011
VL 6
AR T11001
DI 10.1088/1748-0221/6/11/T11001
PG 10
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA 865OO
UT WOS:000298320400045
ER
PT J
AU Meyer, T
Slimmer, D
Voy, D
AF Meyer, T.
Slimmer, D.
Voy, D.
TI Instrument front-ends at Fermilab during Run II
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Instrumentation for particle accelerators and storage rings - high
energy (linear accelerators, synchrotrons); Beam-line instrumentation
(beam position and profile monitors; beam-intensity monitors; bunch
length monitors)
AB The optimization of an accelerator relies on the ability to monitor the behavior of the beam in an intelligent and timely fashion. The use of processor-driven front-ends allowed for the deployment of smart systems in the field for improved data collection and analysis during Run II. This paper describes the implementation of the two main systems used: National Instruments LabVIEW running on PCs, and WindRiver's VxWorks real-time operating system running in a VME crate processor.
C1 [Meyer, T.; Slimmer, D.; Voy, D.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Meyer, T (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM tsmeyer@fnal.gov
FU Fermi Research Alliance, LLC [DE-AC02-07CH11359]; United States
Department of Energy [DE-AC02-07CH11359]
FX Work supported by Fermi Research Alliance, LLC under Contract No.
DE-AC02-07CH11359 with the United States Department of Energy.
NR 6
TC 1
Z9 1
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2011
VL 6
AR T11004
DI 10.1088/1748-0221/6/11/T11004
PG 9
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA 865OO
UT WOS:000298320400048
ER
PT J
AU Mondal, J
Ciovati, G
Kneisel, P
Mittal, KC
Myneni, GR
AF Mondal, J.
Ciovati, G.
Kneisel, P.
Mittal, K. C.
Myneni, G. R.
TI Design, fabrication, RF test at 2K of 1050 MHz, beta=0.49 single cell
large and fine grain niobium cavity
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Acceleration cavities and magnets superconducting (high-temperature
superconductor; radiation hardened magnets; normal-conducting; permanent
magnet devices; wigglers and undulators); Accelerator modelling and
simulations (multi-particle dynamics; single-particle dynamics);
Accelerator Subsystems and Technologies
AB BARC is developing a technology for the accelerator driven subcritical system (ADSS) that will be mainly utilized for the transmutation of nuclear waste and enrichment of U233. Design and prototyping of a superconducting medium velocity cavity has been taken up as a part of the ADSS project. The cavity design for beta = 0.49, f = 1050 MHz has been optimized to minimize the peak electric and magnetic fields, with a goal of 5 MV/m of accelerating gradient at a Q > 5 x 10(9) at 2 K. After the design optimization, two single cell cavities were fabricated from polycrystalline (RRR > 200) and large grain (RRR > 96) Niobium material. The cavities have been tested at 2K in a vertical cryostat at Jefferson Lab and both achieved the performance specifications.
C1 [Mondal, J.; Mittal, K. C.] Bhabha Atom Res Ctr, Accelerator & Pulse Power Div, Bombay 400085, Maharashtra, India.
[Ciovati, G.; Kneisel, P.; Myneni, G. R.] Jefferson Lab, Newport News, VA 23606 USA.
RP Mondal, J (reprint author), Bhabha Atom Res Ctr, Accelerator & Pulse Power Div, Bombay 400085, Maharashtra, India.
EM jmondal@barc.gov.in
FU US DOE [DE-AC05-84ER40150]; Reference Metals Company Inc. [CRADA
2004-S002-Mod 2]
FX This work was supported by US DOE contract DE-AC05-84ER40150 and
Reference Metals Company Inc. CRADA 2004-S002-Mod 2. The author J.
Mondal would like to thank Director BTDG, Dr. L. M. Gantayet and Head
APPD, D. P. Chakravarthy for their keen interest in this program.
NR 14
TC 1
Z9 1
U1 2
U2 9
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2011
VL 6
AR T11003
DI 10.1088/1748-0221/6/11/T11003
PG 13
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA 865OO
UT WOS:000298320400047
ER
PT J
AU Pfeffer, H
Saewert, G
AF Pfeffer, H.
Saewert, G.
TI A 6 kV arbitrary waveform generator for the Tevatron Electron Lens
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Instrumentation for particle accelerators and storage rings - low energy
(linear accelerators, cyclotrons, electrostatic accelerators);
Instrumentation for particle accelerators and storage rings - high
energy (linear accelerators, synchrotrons); Accelerator Subsystems and
Technologies
AB This paper reports on a 6 kV modulator built and installed at Fermilab to drive the electron gun anode for the Tevatron Electron Lens (TEL). The TEL was built with the intention of shifting the individual (anti) proton bunch tunes to even out the tune spread among all 36 bunches with the desire of improving Tevatron integrated luminosity. This modulator is essentially a 6 kV arbitrary waveform generator that enables the TEL to define the electron beam intensity on a bunch-by-bunch basis. A voltage waveform is constructed having a 7 mu s duration that corresponds to the tune shift requirements of a 12-bunch (anti) proton beam pulse train. This waveform is played out for any one or all three bunch trains in the Tevatron. The programmed waveform voltages transition to different levels at time intervals corresponding to the 395 ns bunch spacing. Thus, complex voltage waveforms can be played out at a sustained rate of 143 kHz over the full 6 kV output range. This paper describes the novel design of the inductive adder topology employing five transformers. It describes the design aspects that minimize switching losses for this multi-kilovolt, high repetition rate and high duty factor application.
C1 [Pfeffer, H.; Saewert, G.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Saewert, G (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM saewert@fnal.gov
FU Fermi Research Alliance, LLC; US Department of Energy
[DE-AC02-07CH11359]
FX Work supported by Fermi Research Alliance, LLC under Contract No.
DE-AC02-07CH11359 with the US Department of Energy.
NR 5
TC 4
Z9 4
U1 1
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2011
VL 6
AR P11003
DI 10.1088/1748-0221/6/11/P11003
PG 10
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA 865OO
UT WOS:000298320400038
ER
PT J
AU Ogden, MD
Hoch, CL
Sinkov, SI
Meier, GP
Lumetta, GJ
Nash, KL
AF Ogden, Mark D.
Hoch, Cortney L.
Sinkov, Serguei I.
Meier, G. Patrick
Lumetta, Gregg J.
Nash, Kenneth L.
TI Complexation Studies of Bidentate Heterocyclic N-Donor Ligands with
Nd(III) and Am(III)
SO JOURNAL OF SOLUTION CHEMISTRY
LA English
DT Article
DE Complexation; Am(III); Nd(III); Bidentate heterocyclic N-donor ligands;
Anhydrous methanol media; Spectrophotometry
ID LANTHANIDE(III) COMPLEXES; TRIVALENT ACTINIDES; SOLUTION CHEMISTRY;
NITROGEN LIGANDS; SEPARATION; EXTRACTION; LANTHANIDES(III);
AMERICIUM(III); TPEN
AB A new bidentate nitrogen donor complexing agent that combines pyridine and triazole functional groups, 2-((4-phenyl-1H-1,2,3-triazol-1-yl) methyl) pyridine (PTMP), has been synthesized. The strength of its complexes with trivalent americium (Am(3+)) and neodymium (Nd(3+)) in anhydrous methanol has been evaluated using spectrophotometric techniques. The purpose of this investigation is to assess this ligand (as representative of a class of similarly structured species) as a possible model compound for the challenging separation of trivalent actinides from lanthanides. This separation, important in the development of advanced nuclear fuel cycles, is best achieved through the agency of multidentate chelating agents containing some number of nitrogen or sulfur donor groups. To evaluate the relative strength of the bidentate complexes, the derived constants are compared to those of the same metal ions with 2,2'-bipyridyl (bipy), 1,10-phenanthroline (phen), and 2-pyridin-2-yl-1H-benzimidazole (PBIm). At issue is the relative affinity of the triazole moiety for trivalent f element ions. For all ligands, the derived stability constants are higher for Am(3+) than Nd(3+). In the case of Am(3+) complexes with phen and PBIm, the presence of 1:2 (AmL(2)) species is indicated. Possible separations are suggested based on the relative stability and stoichiometry of the Am(3+) and Nd(3+) complexes. It can be noted that the 1,2,3-triazolyl group imparts a potentially useful selectivity for trivalent actinides (An(III)) over trivalent lanthanides (Ln(III)), though the attainment of higher complex stoichiometries in actinide compared with lanthanide complexes may be an important driver for developing successful separations.
C1 [Ogden, Mark D.; Hoch, Cortney L.; Meier, G. Patrick; Nash, Kenneth L.] Washington State Univ, Dept Chem, Pullman, WA 99164 USA.
[Sinkov, Serguei I.; Lumetta, Gregg J.] Pacific NW Natl Lab, Richland, WA 99354 USA.
RP Ogden, MD (reprint author), ANSTO Minerals, Kirrawee, Dc Nsw 2232, Australia.
EM mark.ogden@ansto.gov.au
FU U.S. Department of Energy, Division of Nuclear Energy Science and
Technology, Nuclear Energy Research Initiative Consortium (NERI-C)
[DE-FG07-07ID14896]
FX This research was conducted at WSU and PNNL with funding provided by the
U.S. Department of Energy, Division of Nuclear Energy Science and
Technology, Nuclear Energy Research Initiative Consortium (NERI-C)
program under project number DE-FG07-07ID14896.
NR 27
TC 4
Z9 4
U1 3
U2 28
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0095-9782
J9 J SOLUTION CHEM
JI J. Solut. Chem.
PD NOV
PY 2011
VL 40
IS 11
BP 1874
EP 1888
DI 10.1007/s10953-011-9762-7
PG 15
WC Chemistry, Physical
SC Chemistry
GA 865SN
UT WOS:000298330700005
ER
PT J
AU Ben-Naim, E
Krapivsky, PL
AF Ben-Naim, E.
Krapivsky, P. L.
TI Dynamics of random graphs with bounded degrees
SO JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
LA English
DT Article
DE irreversible aggregation phenomena (theory); percolation problems
(theory); random graphs; networks
ID MOLECULAR-SIZE DISTRIBUTION; SOCIAL NETWORKS; REGULAR GRAPHS;
AGGREGATION; GELATION; KINETICS; PERCOLATION; POLYMERS; SYSTEMS; MODELS
AB We investigate the dynamic formation of regular random graphs. In our model, we pick a pair of nodes at random and connect them with a link if both of their degrees are smaller than d. Starting with a set of isolated nodes, we repeat this linking step until a regular random graph, where all nodes have degree d, forms. We view this process as a multivariate aggregation process, and formally solve the evolution equations using the Hamilton-Jacobi formalism. We calculate the nontrivial percolation thresholds for the emergence of the giant component when d >= 3. Also, we estimate the number of steps that have occurred before the giant component spans the entire system and the total number of steps that have occurred before the regular random graph forms. These quantities are non-self-averaging, namely, they fluctuate from realization to realization even in the thermodynamic limit.
C1 [Ben-Naim, E.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Ben-Naim, E.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
[Krapivsky, P. L.] Boston Univ, Dept Phys, Boston, MA 02215 USA.
RP Ben-Naim, E (reprint author), Los Alamos Natl Lab, Div Theoret, POB 1663, Los Alamos, NM 87545 USA.
EM ebn@lanl.gov; paulk@bu.edu
RI Ben-Naim, Eli/C-7542-2009; Krapivsky, Pavel/A-4612-2014
OI Ben-Naim, Eli/0000-0002-2444-7304;
FU DOE [AC52-06NA25396]; NSF [CCF-0829541]
FX We thank Wolfgang Losert for useful discussions. This research was
supported by DOE grant DE-AC52-06NA25396 and NSF grant CCF-0829541.
NR 54
TC 5
Z9 5
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1742-5468
J9 J STAT MECH-THEORY E
JI J. Stat. Mech.-Theory Exp.
PD NOV
PY 2011
AR P11008
DI 10.1088/1742-5468/2011/11/P11008
PG 20
WC Mechanics; Physics, Mathematical
SC Mechanics; Physics
GA 863EX
UT WOS:000298146700009
ER
PT J
AU Holesinger, TG
Feldmann, MD
Maiorov, B
Civale, L
Kennison, JA
Coulter, YJ
Dowden, PD
Baca, JF
Tobash, PH
Bauer, ED
Marken, KR
AF Holesinger, Terry G.
Feldmann, Matthew D.
Maiorov, Boris
Civale, Leonardo
Kennison, John A.
Coulter, Yates J.
Dowden, Paul D.
Baca, Javier F.
Tobash, Paul H.
Bauer, Eric D.
Marken, Kenneth R.
TI Nanorod Self-Assembly in High J(c) YBa2Cu3O7-x Films with Ru-Based
Double Perovskites
SO MATERIALS
LA English
DT Article
DE superconductivity; film; pulsed laser deposition; self-assembly; TEM;
STEM
ID CRITICAL-CURRENT DENSITY; COATED CONDUCTORS; THIN-FILMS; SUPERCONDUCTING
MATERIALS; COLUMNAR DEFECTS; YBCO FILMS; DEPOSITION
AB Many second phase additions to YBa2Cu3O7-x (YBCO) films, in particular those that self-assemble into aligned nanorod and nanoparticle structures, enhance performance in self and applied fields. Of particular interest for additions are Ba-containing perovskites that are compatible with YBCO. In this report, we discuss the addition of Ba2YRuO6 to bulk and thick-film YBCO. Sub-micron, randomly oriented particles of this phase were found to form around grain boundaries and within YBCO grains in bulk sintered pellets. Within the limits of EDS, no Ru substitution into the YBCO was observed. Thick YBCO films were grown by pulsed laser deposition from a target consisting of YBa2Cu3Oy with 5 and 2.5 mole percent additions of Ba2YRuO6 and Y2O3, respectively. Films with enhanced in-field performance contained aligned, self-assembled Ba2YRuO6 nanorods and strained Y2O3 nanoparticle layers. A 0.9 mu m thick film was found to have a self-field critical current density (J(c)) of 5.1 MA/cm(2) with minimum J(c)(Theta, H=1T) of 0.75 MA/cm(2). Conversely, J(c) characteristics were similar to YBCO films without additions when these secondary phases formed as large, disordered phases within the film. A 2.3 mu m thick film
C1 [Holesinger, Terry G.; Feldmann, Matthew D.; Maiorov, Boris; Civale, Leonardo; Kennison, John A.; Coulter, Yates J.; Dowden, Paul D.; Baca, Javier F.; Marken, Kenneth R.] Superconduct Technol Ctr, Los Alamos, NM 87545 USA.
[Tobash, Paul H.; Bauer, Eric D.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
RP Holesinger, TG (reprint author), Superconduct Technol Ctr, 30 Bikini Atoll Rd, Los Alamos, NM 87545 USA.
EM holesinger@lanl.gov; dmfeldmann@gmail.com; maiorov@lanl.gov;
lcivale@lanl.gov; jkennison@lanl.gov; jycoulter@lanl.gov;
pdowden@lanl.gov; f.javier.baca@gmail.com; ptobash@lanl.gov;
edbauer@lanl.gov; kmarken@lanl.gov
OI Maiorov, Boris/0000-0003-1885-0436; Civale,
Leonardo/0000-0003-0806-3113; Bauer, Eric/0000-0003-0017-1937
FU DOE by Los Alamos National Security, LLC [W-7405-ENG-36]
FX The authors would like to acknowledge our discussions of the
double-perovskite structure with Kurt Sickafus of LANL. This work was
supported by the U.S. Department of Energy, Office of Electricity
Delivery and Energy Reliability, as part of a DOE program to develop
high temperature superconductors for electric power technologies. Los
Alamos National Laboratory is operated for the DOE by Los Alamos
National Security, LLC, under contract W-7405-ENG-36.
NR 43
TC 2
Z9 2
U1 2
U2 22
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 1996-1944
J9 MATERIALS
JI Materials
PD NOV
PY 2011
VL 4
IS 11
BP 2042
EP 2056
DI 10.3390/ma4112042
PG 15
WC Materials Science, Multidisciplinary
SC Materials Science
GA 864NN
UT WOS:000298247000009
ER
PT J
AU Deng, J
Rokkam, S
AF Deng, Jie
Rokkam, Srujan
TI A Phase Field Model of Surface-Energy-Driven Abnormal Grain Growth in
Thin Films
SO MATERIALS TRANSACTIONS
LA English
DT Article
DE abnormal grain growth; phase field model; thin film
ID COMPUTER-SIMULATION; BOUNDARY ENERGIES; COPPER; SECONDARY; SILICON;
KINETICS; CU; ANISOTROPY
AB A phase field model is established to investigate the surface-energy-driven abnormal grain growth in thin films. It is consistent with sharp interface model and its parameters are connected to material properties. Numerical simulations show that surface energy anisotropy and drag effect are required to motivate the abnormal grain growth. The size of a single abnormal grain increases linearly as a function of time, and it exhibits power-law scaling with film thickness and Arrhenius relationship with temperature. For multiple abnormal grains, their area fraction can be characterized by the Avrami equation with exponent around 2 at large times. These features agree well with the theoretical and experimental results. [doi:10.2320/matertrans.M2011227]
C1 [Deng, Jie; Rokkam, Srujan] Florida State Univ, Dept Comp Sci, Tallahassee, FL 32310 USA.
RP Deng, J (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
EM jd04e@my.fsu.edu
RI Rokkam, Srujan/E-7061-2010
FU Florida Center for Advanced Aero-Propulsion (FCCAP)
FX Authors thank the support from the Florida Center for Advanced
Aero-Propulsion (FCCAP).
NR 36
TC 4
Z9 4
U1 0
U2 12
PU JAPAN INST METALS
PI SENDAI
PA 1-14-32, ICHIBANCHO, AOBA-KU, SENDAI, 980-8544, JAPAN
SN 1345-9678
EI 1347-5320
J9 MATER TRANS
JI Mater. Trans.
PD NOV
PY 2011
VL 52
IS 11
BP 2126
EP 2130
DI 10.2320/matertrans.M2011227
PG 5
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 873GD
UT WOS:000298868200019
ER
PT J
AU Elam, JW
Dasgupta, NP
Prinz, FB
AF Elam, Jeffrey W.
Dasgupta, Neil P.
Prinz, Fritz B.
TI ALD for clean energy conversion, utilization, and storage
SO MRS BULLETIN
LA English
DT Article
ID ATOMIC LAYER DEPOSITION; OXIDE FUEL-CELLS; SENSITIZED SOLAR-CELLS;
YTTRIA-STABILIZED ZIRCONIA; DOPED CERIA INTERLAYERS; SULFIDE THIN-FILMS;
SEMICONDUCTOR NANOCRYSTALS; EPITAXY; GROWTH; ZNO
AB Atomic layer deposition (ALD) uses self-limiting chemical reactions between gaseous precursors and a solid surface to deposit materials in a layer-by-layer fashion. This process results in a unique combination of attributes, including sub-nm precision, the capability to engineer surfaces and interfaces, and unparalleled conformality over high-aspect ratio and nanoporous structures. Given these capabilities, ALD could play a central role in achieving the technological advances necessary to redirect our economy from fossil-based energy to clean, renewable energy. This article will survey some of the recent work applying ALD to clean energy conversion, utilization, and storage, including research in solid oxide fuel cells, thin-film photovoltaics, lithium-ion batteries, and heterogenous catalysts. Throughout the manuscript, we will emphasize how the unique qualities of ALD can enhance device performance and enable radical new designs.
C1 [Elam, Jeffrey W.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Dasgupta, Neil P.; Prinz, Fritz B.] Stanford Univ, Stanford, CA 94305 USA.
RP Elam, JW (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM jelam@anl.gov; dasgupta@stanford.edu; fbp@cdr.stanford.edu
RI Dasgupta, Neil/A-5309-2013
FU Center on Nanostructuring for Efficient Energy Conversion (CNEEC) at
Stanford University, an Energy Frontier Research Center; U.S. Department
of Energy, Office of Science, Office of Basic Energy Sciences
[DE-SC0001060, DE-SC0001059]; catalysis section; center for Electrical
Energy Storage: Tailored Interfaces, an Energy Frontier Research Center;
ANSER Center, an Energy Frontier Research Center
FX F.B.P. and N.P.D. acknowledge support from the Center on Nanostructuring
for Efficient Energy Conversion (CNEEC) at Stanford University, an
Energy Frontier Research Center funded by the U.S. Department of Energy,
Office of Science, Office of Basic Energy Sciences under Award Number
DE-SC0001060. J.W.E. acknowledges that the catalysis section of this
work was supported as part of the Institute for Atom-efficient Chemical
Transformations (IACT), an Energy Frontier Research Center funded by the
U.S. Department of Energy, Office of Science, and Office of Basic Energy
Sciences; the battery section was supported as part of the center for
Electrical Energy Storage: Tailored Interfaces, an Energy Frontier
Research Center funded by the U.S. Department of Energy, Office of
Science, and Office of Basic Energy Sciences; and the photovoltaics
section was supported as part of the ANSER Center, an Energy Frontier
Research Center funded by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences under Award Number
DE-SC0001059.
NR 60
TC 62
Z9 63
U1 10
U2 112
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0883-7694
J9 MRS BULL
JI MRS Bull.
PD NOV
PY 2011
VL 36
IS 11
BP 899
EP 906
DI 10.1557/mrs.2011.265
PG 8
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 878CO
UT WOS:000299230300018
ER
PT J
AU Erlandson, AC
Aceves, SM
Bayramian, AJ
Bullington, AL
Beach, RJ
Boley, CD
Caird, JA
Deri, RJ
Dunne, AM
Flowers, DL
Henesian, MA
Manes, KR
Moses, EI
Rana, SI
Schaffers, KI
Spaeth, ML
Stolz, CJ
Telford, SJ
AF Erlandson, A. C.
Aceves, S. M.
Bayramian, A. J.
Bullington, A. L.
Beach, R. J.
Boley, C. D.
Caird, J. A.
Deri, R. J.
Dunne, A. M.
Flowers, D. L.
Henesian, M. A.
Manes, K. R.
Moses, E. I.
Rana, S. I.
Schaffers, K. I.
Spaeth, M. L.
Stolz, C. J.
Telford, S. J.
TI Comparison of Nd:phosphate glass, Yb:YAG and Yb:S-FAP laser beamlines
for laser inertial fusion energy (LIFE) [Invited]
SO OPTICAL MATERIALS EXPRESS
LA English
DT Article
ID SOLID-STATE LASERS; EMISSION CROSS-SECTION; POWER CONVERSION; GAIN
SATURATION; PEAK POWER; ND-YAG; TEMPERATURE; PERFORMANCE; AMPLIFIER;
CRYSTALS
AB We present the results of performance modeling of diode-pumped solid state laser beamlines designed for use in Laser Inertial Fusion Energy (LIFE) power plants. Our modeling quantifies the efficiency increases that can be obtained by increasing peak diode power and reducing pump-pulse duration, to reduce decay losses. At the same efficiency, beamlines that use laser slabs of Yb:YAG or Yb:S-FAP require lower diode power than beamlines that use laser slabs of Nd:phosphate glass, since Yb:YAG and Yb:S-FAP have longer storage lifetimes. Beamlines using Yb:YAG attain their highest efficiency at a temperature of about 200K. Beamlines using Nd:phosphate glass or Yb:S-FAP attain high efficiency at or near room temperature. (C) 2011 Optical Society of America
C1 [Erlandson, A. C.; Aceves, S. M.; Bayramian, A. J.; Bullington, A. L.; Beach, R. J.; Boley, C. D.; Caird, J. A.; Deri, R. J.; Dunne, A. M.; Flowers, D. L.; Henesian, M. A.; Manes, K. R.; Moses, E. I.; Rana, S. I.; Schaffers, K. I.; Spaeth, M. L.; Stolz, C. J.; Telford, S. J.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Erlandson, AC (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA.
EM erlandson1@llnl.gov
RI Dunne, Mike/B-4318-2014
OI Dunne, Mike/0000-0001-8740-3870
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
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.
NR 48
TC 28
Z9 29
U1 3
U2 25
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 2159-3930
J9 OPT MATER EXPRESS
JI Opt. Mater. Express
PD NOV 1
PY 2011
VL 1
IS 7
BP 1341
EP 1352
PG 12
WC Materials Science, Multidisciplinary; Optics
SC Materials Science; Optics
GA 875QP
UT WOS:000299049200022
ER
PT J
AU Gille, S
de Souza, A
Xiong, GY
Benz, M
Cheng, K
Schultink, A
Reca, IB
Pauly, M
AF Gille, Sascha
de Souza, Amancio
Xiong, Guangyan
Benz, Monique
Cheng, Kun
Schultink, Alex
Reca, Ida-Barbara
Pauly, Markus
TI O-Acetylation of Arabidopsis Hemicellulose Xyloglucan Requires AXY4 or
AXY4L, Proteins with a TBL and DUF231 Domain
SO PLANT CELL
LA English
DT Article
ID CELL-WALL ACETYLATION; DE-ORTHO-ACETYLATION; SIALIC ACIDS; THALIANA;
GENES; IDENTIFICATION; BIOFUELS; MUTANTS; PLANTS; BIOSYNTHESIS
AB In an Arabidopsis thaliana forward genetic screen aimed at identifying mutants with altered structures of their hemicellulose xyloglucan (axy mutants) using oligosaccharide mass profiling, two nonallelic mutants (axy4-1 and axy4-2) that have a 20 to 35% reduction in xyloglucan O-acetylation were identified. Mapping of the mutation in axy4-1 identified AXY4, a type II transmembrane protein with a Trichome Birefringence-Like domain and a domain of unknown function (DUF231). Loss of AXY4 transcript results in a complete lack of O-acetyl substituents on xyloglucan in several tissues, except seeds. Seed xyloglucan is instead O-acetylated by the paralog AXY4like, as demonstrated by the analysis of the corresponding T-DNA insertional lines. Wall fractionation analysis of axy4 knockout mutants indicated that only a fraction containing xyloglucan is non-O-acetylated. Hence, AXY4/AXY4L is required for the O-acetylation of xyloglucan, and we propose that these proteins represent xyloglucan-specific O-acetyltransferases, although their donor and acceptor substrates have yet to be identified. An Arabidopsis ecotype, Ty-0, has reduced xyloglucan O-acetylation due to mutations in AXY4, demonstrating that O-acetylation of xyloglucan does not impact the plant's fitness in its natural environment. The relationship of AXY4 with another previously identified group of Arabidopsis proteins involved in general wall O-acetylation, reduced wall acetylation, is discussed.
C1 [Gille, Sascha; de Souza, Amancio; Xiong, Guangyan; Benz, Monique; Cheng, Kun; Schultink, Alex; Pauly, Markus] Univ Calif Berkeley, Energy Biosci Inst, Berkeley, CA 94720 USA.
[de Souza, Amancio; Pauly, Markus] Univ Calif Berkeley, Plant & Microbial Biol Dept, Berkeley, CA 94720 USA.
[Reca, Ida-Barbara] Michigan State Univ, Great Lakes Bioenergy Res Ctr, E Lansing, MI 48824 USA.
RP Pauly, M (reprint author), Univ Calif Berkeley, Energy Biosci Inst, Berkeley, CA 94720 USA.
EM mpauly69@berkeley.edu
RI Pauly, Markus/B-5895-2008; de Souza, Amancio Jose/D-5298-2017
OI Pauly, Markus/0000-0002-3116-2198; de Souza, Amancio
Jose/0000-0001-6447-3905
FU Energy Biosciences Institute [OO0G01]; Fred Dickinson Chair of Wood
Science and Technology Endowment; Department of Energy Great Lakes
Bioenergy Center (DOE BER Office of Science) [DE-FC02-07ER64494]
FX We thank Kirk Schnorr (Novozymes, Bagsvaerd, Denmark) for the generous
gift of the xyloglucanase and the pectin methylesterase and Bjoern
Usadel (Technical University Aachen, Germany) for seeds of some of the
Arabidopsis ecotypes. We also thank Eddie Lam, Michell Huynh, and
Miranda Lyons-Cohen (all of the University of California, Berkeley, CA)
for excellent technical support. This work was supported by Award OO0G01
from the Energy Biosciences Institute, the Fred Dickinson Chair of Wood
Science and Technology Endowment to M. P., and the Department of Energy
Great Lakes Bioenergy Center (DOE BER Office of Science
DE-FC02-07ER64494) to I-B.R.
NR 65
TC 62
Z9 70
U1 4
U2 31
PU AMER SOC PLANT BIOLOGISTS
PI ROCKVILLE
PA 15501 MONONA DRIVE, ROCKVILLE, MD 20855 USA
SN 1040-4651
J9 PLANT CELL
JI Plant Cell
PD NOV
PY 2011
VL 23
IS 11
BP 4041
EP 4053
DI 10.1105/tpc.111.091728
PG 13
WC Biochemistry & Molecular Biology; Plant Sciences; Cell Biology
SC Biochemistry & Molecular Biology; Plant Sciences; Cell Biology
GA 870MT
UT WOS:000298674200016
PM 22086088
ER
PT J
AU Sharma, R
Tan, F
Jung, KH
Sharma, MK
Peng, ZH
Ronald, PC
AF Sharma, Rita
Tan, Feng
Jung, Ki-Hong
Sharma, Manoj K.
Peng, Zhaohua
Ronald, Pamela C.
TI Transcriptional dynamics during cell wall removal and regeneration
reveals key genes involved in cell wall development in rice
SO PLANT MOLECULAR BIOLOGY
LA English
DT Article
DE Cell wall; Defense response; Expression; Microarray; Protoplast; Stress
ID SUPPRESSION SUBTRACTIVE HYBRIDIZATION; SUSPENSION-CULTURED CELLS;
RECEPTOR-LIKE KINASES; ARABIDOPSIS-THALIANA; CELLULOSE SYNTHESIS;
MICROARRAY DATA; PROTEIN-KINASE; SALINE STRESS; BIOSYNTHESIS; EXPRESSION
AB Efficient and cost-effective conversion of plant biomass to usable forms of energy requires a thorough understanding of cell wall biosynthesis, modification and degradation. To elucidate these processes, we assessed the expression dynamics during enzymatic removal and regeneration of rice cell walls in suspension cells over time. In total, 928 genes exhibited significant up-regulation during cell wall removal, whereas, 79 genes were up-regulated during cell wall regeneration. Both gene sets are enriched for kinases, transcription factors and genes predicted to be involved in cell wall-related functions. Integration of the gene expression datasets with a catalog of known and/or predicted biochemical pathways from rice, revealed metabolic and hormonal pathways involved in cell wall degradation and regeneration. Rice lines carrying Tos17 mutations in genes up-regulated during cell wall removal exhibit dwarf phenotypes. Many of the genes up-regulated during cell wall development are also up-regulated in response to infection and environmental perturbations indicating a coordinated response to diverse types of stress.
C1 [Sharma, Rita; Jung, Ki-Hong; Sharma, Manoj K.; Ronald, Pamela C.] Univ Calif Davis, Dept Plant Pathol, Davis, CA 95616 USA.
[Sharma, Rita; Sharma, Manoj K.; Ronald, Pamela C.] Joint Bioenergy Inst, Emeryville, CA 94710 USA.
[Tan, Feng; Peng, Zhaohua] Mississippi State Univ, Dept Biochem & Mol Biol, Starkville, MS 39762 USA.
[Jung, Ki-Hong; Ronald, Pamela C.] Kyung Hee Univ, Dept Plant Mol Syst Biotechnol, Yongin 446701, South Korea.
[Jung, Ki-Hong; Ronald, Pamela C.] Kyung Hee Univ, Crop Biotech Inst, Yongin 446701, South Korea.
RP Ronald, PC (reprint author), Univ Calif Davis, Dept Plant Pathol, Davis, CA 95616 USA.
EM pcronald@ucdavis.edu
FU US Department of Energy [DEFG0207ER6445907110980]; USDA [200735504
1824007110980]; Office of Science, Office of Biological and
Environmental Research of the US DOE [DE-AC02-05CH11231]; Rural
Development Administration, Republic of Korea [SSAC2011]
FX This work was supported by a US Department of Energy
(DEFG0207ER6445907110980) and USDA (200735504 1824007110980) grant to
PCR and ZP; an Office of Science, Office of Biological and Environmental
Research of the US DOE contract no. DE-AC02-05CH11231 to the Joint
BioEnergy Institute and a grant from the Next-Generation BioGreen 21
Program (No. SSAC2011), Rural Development Administration, Republic of
Korea to KHJ. We thank Dr. Peijian Cao for helping with data
normalization.
NR 91
TC 8
Z9 9
U1 1
U2 19
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0167-4412
J9 PLANT MOL BIOL
JI Plant Mol.Biol.
PD NOV
PY 2011
VL 77
IS 4-5
BP 391
EP 406
DI 10.1007/s11103-011-9819-4
PG 16
WC Biochemistry & Molecular Biology; Plant Sciences
SC Biochemistry & Molecular Biology; Plant Sciences
GA 875RE
UT WOS:000299051200006
PM 21887580
ER
PT J
AU Maxwell, CA
Benitez, J
Gomez-Baldo, L
Osorio, A
Bonifaci, N
Fernandez-Ramires, R
Costes, SV
Guino, E
Chen, H
Evans, GJR
Mohan, P
Catala, I
Petit, A
Aguilar, H
Villanueva, A
Aytes, A
Serra-Musach, J
Rennert, G
Lejbkowicz, F
Peterlongo, P
Manoukian, S
Peissel, B
Ripamonti, CB
Bonanni, B
Viel, A
Allavena, A
Bernard, L
Radice, P
Friedman, E
Kaufman, B
Laitman, Y
Dubrovsky, M
Milgrom, R
Jakubowska, A
Cybulski, C
Gorski, B
Jaworska, K
Durda, K
Sukiennicki, G
Lubinski, J
Shugart, YY
Domchek, SM
Letrero, R
Weber, BL
Hogervorst, FBL
Rookus, MA
Collee, JM
Devilee, P
Ligtenberg, MJ
van der Luijt, RB
Aalfs, CM
Waisfisz, Q
Wijnen, J
van Roozendaal, CEP
Easton, DF
Peock, S
Cook, M
Oliver, C
Frost, D
Harrington, P
Evans, DG
Lalloo, F
Eeles, R
Izatt, L
Chu, C
Eccles, D
Douglas, F
Brewer, C
Nevanlinna, H
Heikkinen, T
Couch, FJ
Lindor, NM
Wang, XS
Godwin, AK
Caligo, MA
Lombardi, G
Loman, N
Karlsson, P
Ehrencrona, H
von Wachenfeldt, A
Barkardottir, RB
Hamann, U
Rashid, MU
Lasa, A
Caldes, T
Andres, R
Schmitt, M
Assmann, V
Stevens, K
Offit, K
Curado, J
Tilgner, H
Guigo, R
Aiza, G
Brunet, J
Castellsague, J
Martrat, G
Urruticoechea, A
Blanco, I
Tihomirova, L
Goldgar, DE
Buys, S
John, EM
Miron, A
Southey, M
Daly, MB
Schmutzler, RK
Wappenschmidt, B
Meindl, A
Arnold, N
Deissler, H
Varon-Mateeva, R
Sutter, C
Niederacher, D
Imyamitov, E
Sinilnikova, OM
Stoppa-Lyonne, D
Mazoyer, S
Verny-Pierre, C
Castera, L
de Pauw, A
Bignon, YJ
Uhrhammer, N
Peyrat, JP
Vennin, P
Ferrer, SF
Collonge-Rame, MA
Mortemousque, I
Spurdle, AB
Beesley, J
Chen, XQ
Healey, S
Barcellos-Hoff, MH
Vidal, M
Gruber, SB
Lazaro, C
Capella, G
McGuffog, L
Nathanson, KL
Antoniou, AC
Chenevix-Trench, G
Fleisch, MC
Moreno, V
Pujana, MA
AF Maxwell, Christopher A.
Benitez, Javier
Gomez-Baldo, Laia
Osorio, Ana
Bonifaci, Nuria
Fernandez-Ramires, Ricardo
Costes, Sylvain V.
Guino, Elisabet
Chen, Helen
Evans, Gareth J. R.
Mohan, Pooja
Catala, Isabel
Petit, Anna
Aguilar, Helena
Villanueva, Alberto
Aytes, Alvaro
Serra-Musach, Jordi
Rennert, Gad
Lejbkowicz, Flavio
Peterlongo, Paolo
Manoukian, Siranoush
Peissel, Bernard
Ripamonti, Carla B.
Bonanni, Bernardo
Viel, Alessandra
Allavena, Anna
Bernard, Loris
Radice, Paolo
Friedman, Eitan
Kaufman, Bella
Laitman, Yael
Dubrovsky, Maya
Milgrom, Roni
Jakubowska, Anna
Cybulski, Cezary
Gorski, Bohdan
Jaworska, Katarzyna
Durda, Katarzyna
Sukiennicki, Grzegorz
Lubinski, Jan
Shugart, Yin Yao
Domchek, Susan M.
Letrero, Richard
Weber, Barbara L.
Hogervorst, Frans B. L.
Rookus, Matti A.
Collee, J. Margriet
Devilee, Peter
Ligtenberg, Marjolijn J.
van der Luijt, Rob B.
Aalfs, Cora M.
Waisfisz, Quinten
Wijnen, Juul
van Roozendaal, Cornelis E. P.
Easton, Douglas F.
Peock, Susan
Cook, Margaret
Oliver, Clare
Frost, Debra
Harrington, Patricia
Evans, D. Gareth
Lalloo, Fiona
Eeles, Rosalind
Izatt, Louise
Chu, Carol
Eccles, Diana
Douglas, Fiona
Brewer, Carole
Nevanlinna, Heli
Heikkinen, Tuomas
Couch, Fergus J.
Lindor, Noralane M.
Wang, Xianshu
Godwin, Andrew K.
Caligo, Maria A.
Lombardi, Grazia
Loman, Niklas
Karlsson, Per
Ehrencrona, Hans
von Wachenfeldt, Anna
Barkardottir, Rosa Bjork
Hamann, Ute
Rashid, Muhammad U.
Lasa, Adriana
Caldes, Trinidad
Andres, Raquel
Schmitt, Michael
Assmann, Volker
Stevens, Kristen
Offit, Kenneth
Curado, Joao
Tilgner, Hagen
Guigo, Roderic
Aiza, Gemma
Brunet, Joan
Castellsague, Joan
Martrat, Griselda
Urruticoechea, Ander
Blanco, Ignacio
Tihomirova, Laima
Goldgar, David E.
Buys, Saundra
John, Esther M.
Miron, Alexander
Southey, Melissa
Daly, Mary B.
Schmutzler, Rita K.
Wappenschmidt, Barbara
Meindl, Alfons
Arnold, Norbert
Deissler, Helmut
Varon-Mateeva, Raymonda
Sutter, Christian
Niederacher, Dieter
Imyamitov, Evgeny
Sinilnikova, Olga M.
Stoppa-Lyonne, Dominique
Mazoyer, Sylvie
Verny-Pierre, Carole
Castera, Laurent
de Pauw, Antoine
Bignon, Yves-Jean
Uhrhammer, Nancy
Peyrat, Jean-Philippe
Vennin, Philippe
Ferrer, Sandra Fert
Collonge-Rame, Marie-Agnes
Mortemousque, Isabelle
Spurdle, Amanda B.
Beesley, Jonathan
Chen, Xiaoqing
Healey, Sue
Barcellos-Hoff, Mary Helen
Vidal, Marc
Gruber, Stephen B.
Lazaro, Conxi
Capella, Gabriel
McGuffog, Lesley
Nathanson, Katherine L.
Antoniou, Antonis C.
Chenevix-Trench, Georgia
Fleisch, Markus C.
Moreno, Victor
Angel Pujana, Miguel
CA HEBON
EMBRACE
SWE-BRCA
BCFR
GEMO Study Collaborators
kConFab
TI Interplay between BRCA1 and RHAMM Regulates Epithelial Apicobasal
Polarization and May Influence Risk of Breast Cancer
SO PLOS BIOLOGY
LA English
DT Article
ID CENTROSOMAL MICROTUBULE NUCLEATION; PROGENITOR-CELL FATE; MUTATION
CARRIERS; MAMMARY-GLAND; MITOTIC SPINDLE; STEM-CELLS; MULTIPLE-MYELOMA;
BRCA1-DEPENDENT UBIQUITINATION; ADHERENS JUNCTIONS; MISSENSE MUTATIONS
AB Differentiated mammary epithelium shows apicobasal polarity, and loss of tissue organization is an early hallmark of breast carcinogenesis. In BRCA1 mutation carriers, accumulation of stem and progenitor cells in normal breast tissue and increased risk of developing tumors of basal-like type suggest that BRCA1 regulates stem/progenitor cell proliferation and differentiation. However, the function of BRCA1 in this process and its link to carcinogenesis remain unknown. Here we depict a molecular mechanism involving BRCA1 and RHAMM that regulates apicobasal polarity and, when perturbed, may increase risk of breast cancer. Starting from complementary genetic analyses across families and populations, we identified common genetic variation at the low-penetrance susceptibility HMMR locus (encoding for RHAMM) that modifies breast cancer risk among BRCA1, but probably not BRCA2, mutation carriers: n = 7,584, weighted hazard ratio ((w)HR) = 1.09 (95% CI 1.02-1.16), p(trend) = 0.017; and n = 3,965, (w)HR = 1.04 (95% CI 0.94-1.16), p(trend) = 0.43; respectively. Subsequently, studies of MCF10A apicobasal polarization revealed a central role for BRCA1 and RHAMM, together with AURKA and TPX2, in essential reorganization of microtubules. Mechanistically, reorganization is facilitated by BRCA1 and impaired by AURKA, which is regulated by negative feedback involving RHAMM and TPX2. Taken together, our data provide fundamental insight into apicobasal polarization through BRCA1 function, which may explain the expanded cell subsets and characteristic tumor type accompanying BRCA1 mutation, while also linking this process to sporadic breast cancer through perturbation of HMMR/RHAMM.
C1 [Maxwell, Christopher A.; Gomez-Baldo, Laia; Bonifaci, Nuria; Aguilar, Helena; Villanueva, Alberto; Aytes, Alvaro; Serra-Musach, Jordi; Aiza, Gemma; Martrat, Griselda; Urruticoechea, Ander; Angel Pujana, Miguel] Bellvitge Biomed Res Inst IDIBELL, Catalan Inst Oncol, Translat Res Lab, Lhospitalet De Llobregat, Catalonia, Spain.
[Benitez, Javier; Osorio, Ana; Fernandez-Ramires, Ricardo] Spanish Natl Canc Res Ctr, Human Canc Genet Programme, Madrid, Spain.
[Bonifaci, Nuria; Guino, Elisabet; Serra-Musach, Jordi; Moreno, Victor; Angel Pujana, Miguel] IDIBELL, Catalan Inst Oncol, Biomarkers & Susceptibil Unit, Lhospitalet De Llobregat, Catalonia, Spain.
[Costes, Sylvain V.; Barcellos-Hoff, Mary Helen] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Catala, Isabel; Petit, Anna] Univ Hosp Bellvitge, IDIBELL, Dept Pathol, Lhospitalet De Llobregat, Catalonia, Spain.
[Rennert, Gad; Lejbkowicz, Flavio] Technion Israel Inst Technol, Carmel Med Ctr, Dept Community Med & Epidemiol, CHS Natl Canc Control Ctr, Haifa, Israel.
[Rennert, Gad; Lejbkowicz, Flavio] Technion Israel Inst Technol, B Rappaport Fac Med, Haifa, Israel.
[Peterlongo, Paolo; Ripamonti, Carla B.; Radice, Paolo] Fdn IRCCS, Dept Prevent & Predict Med, Unit Mol Bases Genet Risk & Genet Testing, Ist Nazl Tumori, Milan, Italy.
[Peterlongo, Paolo; Ripamonti, Carla B.; Radice, Paolo] IFOM Fdn, Ist FIRC Oncol Mol, Milan, Italy.
[Manoukian, Siranoush; Peissel, Bernard; Ripamonti, Carla B.] Fdn IRCCS, Ist Nazl Tumori, Dept Prevent & Predict Med, Unit Med Genet, Milan, Italy.
[Bonanni, Bernardo] Ist Europeo Oncol, Div Canc Prevent & Genet, Milan, Italy.
[Viel, Alessandra] IRCCS, Ctr Riferimento Oncol, Div Expt Oncol 1, Aviano, Italy.
[Allavena, Anna] Univ Turin, Dept Genet Biol & Biochem, Turin, Italy.
[Bernard, Loris] Ist Europeo Oncol, Dept Expt Oncol, Milan, Italy.
[Bernard, Loris] Consortium Genom Technol Cogentech, Milan, Italy.
[Friedman, Eitan; Kaufman, Bella; Laitman, Yael; Dubrovsky, Maya; Milgrom, Roni] Chaim Sheba Med Ctr, Inst Human Genet, Susanne Levy Gertner Oncogenet Unit, Ramat Gan, Israel.
[Friedman, Eitan] Tel Aviv Univ, Sackler Fac Med, Ramat Aviv, Israel.
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[Shugart, Yin Yao] NIMH, Unit Stat Genet, Div Intramural Res Program, NIH, Bethesda, MD 20892 USA.
[Domchek, Susan M.; Letrero, Richard; Weber, Barbara L.; Nathanson, Katherine L.] Univ Penn, Sch Med, Abramson Canc Ctr, Philadelphia, PA 19104 USA.
[Hogervorst, Frans B. L.] Netherlands Canc Inst, Dept Pathol, Family Canc Clin, NL-1066 CX Amsterdam, Netherlands.
[Rookus, Matti A.] Netherlands Canc Inst, Dept Epidemiol, Amsterdam, Netherlands.
[Collee, J. Margriet] Erasmus Univ, Dept Clin Genet, Med Ctr, Rotterdam Family Canc Clin, NL-3000 DR Rotterdam, Netherlands.
[Devilee, Peter] Leiden Univ, Dept Genet Epidemiol, Med Ctr, Leiden, Netherlands.
[Ligtenberg, Marjolijn J.] Radboud Univ Nijmegen, Dept Human Genet, Med Ctr, NL-6525 ED Nijmegen, Netherlands.
[van der Luijt, Rob B.] Univ Utrecht, Med Ctr, Dept Clin Mol Genet, Utrecht, Netherlands.
[Aalfs, Cora M.] Univ Amsterdam, Acad Med Ctr, Dept Clin Genet, NL-1105 AZ Amsterdam, Netherlands.
[Waisfisz, Quinten] Vrije Univ Amsterdam, Med Ctr, Dept Clin Genet, Amsterdam, Netherlands.
[Wijnen, Juul] Leiden Univ, Med Ctr, Ctr Human & Clin Genet, Leiden, Netherlands.
[van Roozendaal, Cornelis E. P.] Univ Med Ctr, Dept Clin Genet, Maastricht, Netherlands.
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[Harrington, Patricia] Univ Cambridge, Dept Oncol, Cambridge, England.
[Evans, D. Gareth; Lalloo, Fiona] Cent Manchester Univ Hosp NHS Fdn Trust, Manchester Acad Hlth Sci Ctr, Manchester, Lancs, England.
[Eeles, Rosalind] Royal Marsden NHS Fdn Trust, Sutton, Surrey, England.
[Izatt, Louise] Guys & St Thomas NHS Fdn Trust, London, England.
[Chu, Carol] St James Hosp, Yorkshire Reg Genet Serv, Leeds, W Yorkshire, England.
[Eccles, Diana] Princess Anne Hosp, Wessex Clin Genet Serv, Southampton, Hants, England.
[Douglas, Fiona] Newcastle Upon Tyne Hosp NHS Trust, Ctr Life, Inst Human Genet, Newcastle Upon Tyne, Tyne & Wear, England.
[Brewer, Carole] Royal Devon & Exeter Hosp, Dept Clin Genet, Exeter EX2 5DW, Devon, England.
[Nevanlinna, Heli; Heikkinen, Tuomas] Univ Helsinki, Cent Hosp, Dept Obstet & Gynecol, FIN-00290 Helsinki, Finland.
[Couch, Fergus J.; Wang, Xianshu] Mayo Clin, Dept Lab Med & Pathol, Rochester, MN USA.
[Lindor, Noralane M.] Mayo Clin, Dept Med Genet, Rochester, MN USA.
[Godwin, Andrew K.] Univ Kansas, Med Ctr, Dept Pathol & Lab Med, Kansas City, KS 66103 USA.
[Caligo, Maria A.; Lombardi, Grazia] Univ Pisa, Sect Genet Oncol, Dept Oncol, Pisa, Italy.
[Caligo, Maria A.; Lombardi, Grazia] Univ Hosp Pisa, Dept Lab Med, Pisa, Italy.
[Loman, Niklas] Univ Lund Hosp, Dept Oncol, S-22185 Lund, Sweden.
[Karlsson, Per] Sahlgrens Univ Hosp, Dept Oncol, Gothenburg, Sweden.
[Ehrencrona, Hans] Uppsala Univ, Rudbeck Lab, Dept Genet & Pathol, Uppsala, Sweden.
[von Wachenfeldt, Anna] Karolinska Univ Hosp, Dept Oncol, Stockholm, Sweden.
[Barkardottir, Rosa Bjork] Landspitali Univ Hosp, Dept Pathol, Reykjavik, Iceland.
[Hamann, Ute; Rashid, Muhammad U.] Deutsch Krebsforschungszentrum, D-6900 Heidelberg, Germany.
[Rashid, Muhammad U.] Shaukat Khanum Mem Canc Hosp & Res Ctr, Dept Basic Sci, Lahore, Pakistan.
[Lasa, Adriana] Hosp Santa Creu & Sant Pau, Genet Serv, Barcelona, Catalonia, Spain.
[Caldes, Trinidad] Hosp Clin San Carlos, Mol Oncol Lab, Madrid, Spain.
[Andres, Raquel] Hosp Clin Zaragoza, Div Med Oncol, Zaragoza, Spain.
[Schmitt, Michael] Univ Rostock, Dept Internal Med 3, Rostock, Germany.
[Assmann, Volker] Univ Hosp Hamburg Eppendorf, Inst Tumor Biol, Ctr Med Expt, Hamburg, Germany.
[Stevens, Kristen] Univ Michigan, Dept Epidemiol, Ann Arbor, MI 48109 USA.
[Offit, Kenneth] Mem Sloan Kettering Canc Ctr, Dept Med, Clin Genet Serv, New York, NY 10021 USA.
[Curado, Joao; Tilgner, Hagen; Guigo, Roderic] Biomed Res Pk Barcelona PRBB, Ctr Genom Regulat CRG, Bioinformat & Genom Grp, Barcelona, Catalonia, Spain.
[Brunet, Joan; Castellsague, Joan; Blanco, Ignacio; Lazaro, Conxi; Capella, Gabriel] Girona Biomed Res Inst IdIBGi, Catalonia, Spain.
[Brunet, Joan; Castellsague, Joan; Blanco, Ignacio; Lazaro, Conxi; Capella, Gabriel] IDIBELL, Catalan Inst Oncol, Genet Counseling & Hereditary Canc Programme, Catalonia, Spain.
[Tihomirova, Laima] Latvian Biomed Res & Study Ctr, Riga, Latvia.
[Goldgar, David E.] Univ Utah, Sch Med, Dept Dermatol, Salt Lake City, UT USA.
[Buys, Saundra] Huntsman Canc Inst, Dept Internal Med, Salt Lake City, UT USA.
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[Daly, Mary B.] Fox Chase Canc Ctr, Div Populat Sci, Philadelphia, PA 19111 USA.
[Schmutzler, Rita K.; Wappenschmidt, Barbara] Univ Cologne, Ctr Familial Breast & Ovarian Canc, D-50931 Cologne, Germany.
[Schmutzler, Rita K.; Wappenschmidt, Barbara] Univ Cologne, Ctr Integrated Oncol, D-50931 Cologne, Germany.
[Meindl, Alfons] Tech Univ Munich, Klinikum Rechts Isar, Dept Obstet & Gynaecol, D-8000 Munich, Germany.
[Arnold, Norbert] Univ Hosp Schleswig Holstein, Dept Obstet & Gynaecol, Div Oncol, Kiel, Germany.
[Deissler, Helmut] Univ Ulm, Dept Obstet & Gynecol, Ulm, Germany.
[Varon-Mateeva, Raymonda] Charite, Inst Humangenet, D-13353 Berlin, Germany.
[Sutter, Christian] Univ Heidelberg, Inst Human Genet, Heidelberg, Germany.
[Niederacher, Dieter] Univ Dusseldorf, Ctr Clin, Dept Obstet & Gynaecol, Div Mol Genet, D-40225 Dusseldorf, Germany.
[Imyamitov, Evgeny] NN Petrov Inst Oncol, St Petersburg, Russia.
[Sinilnikova, Olga M.] CHU Lyon, Ctr Leon Berard, Unite Mixte Genet Constitut Canc Frequents, Lyon, France.
[Sinilnikova, Olga M.; Mazoyer, Sylvie; Verny-Pierre, Carole] Univ Lyon, Ctr Leon Berard, CNRS UMR5201, Equipe Labellisee LIGUE 2008, Lyon, France.
[Stoppa-Lyonne, Dominique; Castera, Laurent; de Pauw, Antoine] Univ Paris 05, Serv Genet Oncol, INSERM, Inst Curie,U509, Paris, France.
[Bignon, Yves-Jean; Uhrhammer, Nancy] Univ Clermont Ferrand, Ctr Jean Perrin, Dept Oncogenet, Clermont Ferrand, France.
[Peyrat, Jean-Philippe] Ctr Oscar Lambret, Lab Oncol Mol Humaine, F-59020 Lille, France.
[Ferrer, Sandra Fert] Hotel Dieu Ctr Hosp, Lab Genet Chromosom, Chambery, France.
[Collonge-Rame, Marie-Agnes] CHU Besancon, Serv Genet Histol Biol Dev & Reprod, F-25030 Besancon, France.
[Mortemousque, Isabelle] CHU Bretonneau, Serv Genet, F-37044 Tours, France.
[Spurdle, Amanda B.; Beesley, Jonathan; Chen, Xiaoqing; Healey, Sue; Chenevix-Trench, Georgia] Queensland Inst Med Res, Brisbane, Qld 4006, Australia.
Peter MacCallum Canc Inst, Kathleen Cuningham Fdn, Consortium Res Familial Breast Canc, Melbourne, Australia.
[Vidal, Marc] Harvard Univ, Sch Med, Dana Farber Canc Inst, Dept Canc Biol, Boston, MA 02115 USA.
[Vidal, Marc] Harvard Univ, Sch Med, Dept Genet, Boston, MA USA.
[Vidal, Marc] Harvard Univ, Sch Med, Ctr Canc Syst Biol CCSB, Boston, MA USA.
[Gruber, Stephen B.] Univ Michigan, Dept Internal Med, Ann Arbor, MI 48109 USA.
[Fleisch, Markus C.] Univ Dusseldorf, Dept Obstet & Gynaecol, D-40225 Dusseldorf, Germany.
RP Maxwell, CA (reprint author), Child & Family Res Inst, Dept Pediat, Vancouver, BC, Canada.
EM cmaxwell@cfri.ubc.ca; mapujana@ico.scs.es
RI Spurdle, Amanda/A-4978-2011; Jakubowska, Anna/O-8050-2014; Guigo,
Roderic/D-1303-2010; Ligtenberg, Marjolijn/N-9666-2013;
Fernandez-Ramires, Ricardo/H-3707-2014; Ripamonti, Carla
Barbara/D-2247-2017; manoukian, siranoush/E-7132-2017; Peissel,
Bernard/E-8187-2017; Ehrencrona, Hans/M-5619-2014; pujana, Miguel
Angel/N-3127-2014; Arnold, Norbert/E-3012-2010; Maxwell,
Christopher/B-3044-2011; Costes, Sylvain/D-2522-2013; Radice,
Paolo/O-3119-2013; Aytes, Alvaro/B-5803-2014; Blanco,
Ignacio/D-2565-2013; Fleisch, Markus/E-4134-2014; Osorio,
Ana/I-4324-2014; Bernard, Loris/K-5953-2014; Aytes, Alvaro/M-1360-2014
OI Evans, Gareth/0000-0002-8482-5784; Spurdle, Amanda/0000-0003-1337-7897;
Brunet, Joan/0000-0003-1945-3512; Nevanlinna, Heli/0000-0002-0916-2976;
Moreno, Victor/0000-0002-2818-5487; Guigo, Roderic/0000-0002-5738-4477;
Ligtenberg, Marjolijn/0000-0003-1290-1474; Ripamonti, Carla
Barbara/0000-0002-2892-8164; manoukian, siranoush/0000-0002-6034-7562;
Peissel, Bernard/0000-0001-9233-3571; Eeles,
Rosalind/0000-0002-3698-6241; Nathanson, Katherine/0000-0002-6740-0901;
Ehrencrona, Hans/0000-0002-5589-3622; pujana, Miguel
Angel/0000-0003-3222-4044; Arnold, Norbert/0000-0003-4523-8808; Maxwell,
Christopher/0000-0002-0860-4031; Costes, Sylvain/0000-0002-8542-2389;
Aytes, Alvaro/0000-0003-0725-5340; Blanco, Ignacio/0000-0002-7414-7481;
Fleisch, Markus/0000-0002-8966-4721; Osorio, Ana/0000-0001-8124-3984;
Aytes, Alvaro/0000-0003-0725-5340
FU Spanish Ministries of Health, and Science ane Innovation [CB07/02/2005];
FIS [08/1120, 08/1359, 08/1635, 09/02483]; RTICCC [RD06/0020/1060,
RD06/0020/0028]; Transversal Action Against Cancer; Spanish Biomedical
Research Centre Networks for Epidemiology and Public Health, and Rare
Diseases; "Ramon y Cajal" Young Investigator Program; Spanish National
Society of Medical Oncology; Spanish Association Against Cancer [AECC
2010]; AGAUR Catalan Government Agency [2009SGR1489, 2009SGR293];
Beatriu Pinos Postdoctoral Program; Ramon Areces Foundation; "Roses
Contra el Cancer" Foundation; Michael Cuccione Foundation for Childhood
Cancer Research, Cancer Research-UK [C490/A10119, C1287/A8874,
C1287/A10118, C5047/A8385, C8197/A10123]; National Institute for Health
Research (UK); Association for International Cancer Research
[AICR-07-0454]; Ligue National Contre le Cancer (France); Association
"Le cancer du sein, parlons-en!"; Dutch Cancer Society [NKI 1998-1854,
2004-3088, 2007-3756]; Fondazione Italiana per la Ricerca sul Cancro
("Hereditary Tumors"); Associazione Italiana per la Ricerca sul Cancro
[4017]; Italian Ministero della Salute [RFPS-2006-3-340203]; Italian
Ministero dell'Universita e Ricerca [RBLAO3-BETH]; Fondazione IRCCS
Istituto Nazionale Tumori [INT "5x1000"]; Fondazione Cassa di Risparmio
di Pisa (Istituto Toscano Tumori); National Breast Cancer Foundation
(Australia); Australian National Health and Medical Research Council
[145684, 288704, 454508]; Queensland Cancer Fund; Cancer Councils of New
South Wales, Victoria, Tasmania, and South Australia; Cancer Foundation
of Western Australia; German Cancer Aid [107054]; Center for Molecular
Medicine Cologne [TV93]; National Cancer Institute (USA) [CA128978,
CA122340]; National Institutes of Health [RFA-CA-06-503, BCFR U01
CA69398, CA69417, CA69446, CA69467, CA69631, CA69638]; Research Triangle
Institute Informatics Support Center [RFP N02PC45022-46]; Specialized
Program of Research Excellence (SPORE) [P50 CA83638, CA113916];
Department of Defense [05/0612]; Eileen Stein Jacoby Fund; Breast Cancer
Research Foundation; Marianne and Robert MacDonald Foundation; Komen
Foundation; Helsinki University Central Hospital; Academy of Finland
[110663]; Finnish Cancer Society; Sigrid Juselius Foundation; EU
[223175, HEALTH-F2-2009-223175]
FX This work was funded by the Spanish Ministries of Health, and Science
ane Innovation (CB07/02/2005; FIS 08/1120, 08/1359, 08/1635, and
09/02483; RTICCC RD06/0020/1060 and RD06/0020/0028; Transversal Action
Against Cancer; the Spanish Biomedical Research Centre Networks for
Epidemiology and Public Health, and Rare Diseases; and the "Ramon y
Cajal" Young Investigator Program), the Spanish National Society of
Medical Oncology (2010), the Spanish Association Against Cancer (AECC
2010), the AGAUR Catalan Government Agency (2009SGR1489 and 2009SGR293;
and the Beatriu Pinos Postdoctoral Program), the Ramon Areces Foundation
(XV), the "Roses Contra el Cancer" Foundation, the Michael Cuccione
Foundation for Childhood Cancer Research, Cancer Research-UK
(C490/A10119, C1287/A8874, C1287/A10118, C5047/A8385, and C8197/A10123),
the National Institute for Health Research (UK), the Association for
International Cancer Research (AICR-07-0454), the Ligue National Contre
le Cancer (France), the Association "Le cancer du sein, parlons-en!",
the Dutch Cancer Society (NKI 1998-1854, 2004-3088, and 2007-3756), the
Fondazione Italiana per la Ricerca sul Cancro ("Hereditary Tumors"), the
Associazione Italiana per la Ricerca sul Cancro (4017), the Italian
Ministero della Salute (RFPS-2006-3-340203 and "Progetto Tumori
Femminili"), the Italian Ministero dell'Universita e Ricerca
(RBLAO3-BETH), the Fondazione IRCCS Istituto Nazionale Tumori (INT
"5x1000"), the Fondazione Cassa di Risparmio di Pisa (Istituto Toscano
Tumori), the National Breast Cancer Foundation (Australia), the
Australian National Health and Medical Research Council (145684, 288704,
and 454508), the Queensland Cancer Fund, the Cancer Councils of New
South Wales, Victoria, Tasmania, and South Australia, the Cancer
Foundation of Western Australia, the German Cancer Aid (107054), the
Center for Molecular Medicine Cologne (TV93), the National Cancer
Institute (USA; CA128978 and CA122340), National Institutes of Health
(RFA-CA-06-503, BCFR U01 CA69398, CA69417, CA69446, CA69467, CA69631,
and CA69638), the Research Triangle Institute Informatics Support Center
(RFP N02PC45022-46), the Specialized Program of Research Excellence
(SPORE P50 CA83638 and CA113916), the Department of Defense Breast
Cancer Research Program (05/0612), the Eileen Stein Jacoby Fund, the
Breast Cancer Research Foundation, the Marianne and Robert MacDonald
Foundation, the Komen Foundation, the Helsinki University Central
Hospital Research Fund, the Academy of Finland (110663), the Finnish
Cancer Society, the Sigrid Juselius Foundation, and the EU FP7 (223175,
HEALTH-F2-2009-223175). The funders had no role in study design, data
collection and analysis, decision to publish, or preparation of the
manuscript.
NR 68
TC 28
Z9 28
U1 1
U2 19
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA
SN 1544-9173
J9 PLOS BIOL
JI PLoS. Biol.
PD NOV
PY 2011
VL 9
IS 11
AR e1001199
DI 10.1371/journal.pbio.1001199
PG 18
WC Biochemistry & Molecular Biology; Biology
SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other
Topics
GA 863HE
UT WOS:000298152600012
PM 22110403
ER
PT J
AU Ramanathan, A
Agarwal, PK
AF Ramanathan, Arvind
Agarwal, Pratul K.
TI Evolutionarily Conserved Linkage between Enzyme Fold, Flexibility, and
Catalysis
SO PLOS BIOLOGY
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATIONS; DIHYDROFOLATE-REDUCTASE CATALYSIS;
CYCLOPHILIN-A INSIGHTS; PROTEIN DYNAMICS; HYDRIDE TRANSFER;
SINGLE-MOLECULE; CONFORMATIONAL-CHANGES; ESCHERICHIA-COLI; ENERGY
LANDSCAPE; DISTAL MUTATIONS
AB Proteins are intrinsically flexible molecules. The role of internal motions in a protein's designated function is widely debated. The role of protein structure in enzyme catalysis is well established, and conservation of structural features provides vital clues to their role in function. Recently, it has been proposed that the protein function may involve multiple conformations: the observed deviations are not random thermodynamic fluctuations; rather, flexibility may be closely linked to protein function, including enzyme catalysis. We hypothesize that the argument of conservation of important structural features can also be extended to identification of protein flexibility in interconnection with enzyme function. Three classes of enzymes (prolyl-peptidyl isomerase, oxidoreductase, and nuclease) that catalyze diverse chemical reactions have been examined using detailed computational modeling. For each class, the identification and characterization of the internal protein motions coupled to the chemical step in enzyme mechanisms in multiple species show identical enzyme conformational fluctuations. In addition to the active-site residues, motions of protein surface loop regions (>10 angstrom away) are observed to be identical across species, and networks of conserved interactions/residues connect these highly flexible surface regions to the active-site residues that make direct contact with substrates. More interestingly, examination of reaction-coupled motions in non-homologous enzyme systems (with no structural or sequence similarity) that catalyze the same biochemical reaction shows motions that induce remarkably similar changes in the enzyme-substrate interactions during catalysis. The results indicate that the reaction-coupled flexibility is a conserved aspect of the enzyme molecular architecture. Protein motions in distal areas of homologous and non-homologous enzyme systems mediate similar changes in the active-site enzyme-substrate interactions, thereby impacting the mechanism of catalyzed chemistry. These results have implications for understanding the mechanism of allostery, and for protein engineering and drug design.
C1 [Ramanathan, Arvind] Carnegie Mellon Univ, Joint CMU Pitt Program Computat Biol, Pittsburgh, PA 15213 USA.
[Ramanathan, Arvind; Agarwal, Pratul K.] Oak Ridge Natl Lab, Computat Biol Inst, Oak Ridge, TN USA.
[Ramanathan, Arvind; Agarwal, Pratul K.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN USA.
RP Ramanathan, A (reprint author), Carnegie Mellon Univ, Joint CMU Pitt Program Computat Biol, Pittsburgh, PA 15213 USA.
EM agarwalpk@ornl.gov
FU ORNL's Laboratory Directed Research and Development (LDRD); National
Center for Computational Sciences [BIP003, BIO022]
FX PKA acknowledges the support provided by ORNL's Laboratory Directed
Research and Development (LDRD) funds and the computing time allocation
from the National Center for Computational Sciences (BIP003, BIO022).
The funders had no role in study design, data collection and analysis,
decision to publish, or preparation of the manuscript.
NR 86
TC 35
Z9 35
U1 1
U2 29
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA
SN 1544-9173
J9 PLOS BIOL
JI PLoS. Biol.
PD NOV
PY 2011
VL 9
IS 11
AR e1001193
DI 10.1371/journal.pbio.1001193
PG 17
WC Biochemistry & Molecular Biology; Biology
SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other
Topics
GA 863HE
UT WOS:000298152600008
PM 22087074
ER
PT J
AU Mudryk, Y
Pecharsky, VK
Gschneidner, KA
AF Mudryk, Yaroslav
Pecharsky, Vitalij K.
Gschneidner, Karl A., Jr.
TI Extraordinary Responsive Intermetallic Compounds: the R5T4 Family (R =
Rare Earth, T = Group 13-15 Element)
SO ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
LA English
DT Article
DE Rare earths; Intermetallic phases; First-Order phase transitions; High
pressure; Magnetic properties
ID CRYSTAL-STRUCTURE; MAGNETOCALORIC MATERIALS; GIANT MAGNETORESISTANCE;
PHASE-RELATIONSHIPS; NANOSCALE ZIPPERS; GD-5(SIXGE1-X)(4); GE;
GD-5(SI2GE2); TRANSITION; ALLOYS
AB The R5T4 intermetallic compounds of rare earth elements (R) with the group 14 elements(T) adopt a number of layered crystal structures that reversibly transform into each other. The transformations proceed through massive shear displacements of their main structural units, i.e. slabs, which are pseudo two dimensional blocks of atoms stacked along a certain crystallographic direction. These transformations can be triggered by change in chemical composition of the compounds( including partial substitutions of the group 14 elements by the group 13 or 15 elements), temperature, applied pressure, or applied magnetic field. The physical properties of these compounds are usually intimately related to their crystallography, and especially the concomitant magnetic and crystallographic transitions. As a result, strong magnetocaloric, magnetostrictive, magnetoresistance, and other effects are commonly observed. Consequently, a large change of the materials' properties can be achieved by a relatively weak change of external thermodynamic conditions.
C1 [Mudryk, Yaroslav; Pecharsky, Vitalij K.; Gschneidner, Karl A., Jr.] Iowa State Univ, Ames Lab, US Dept Energy, Ames, IA 50011 USA.
[Pecharsky, Vitalij K.; Gschneidner, Karl A., Jr.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
RP Mudryk, Y (reprint author), Iowa State Univ, Ames Lab, US Dept Energy, Ames, IA 50011 USA.
EM slavkomk@ameslab.gov
FU U.S. Department of Energy [DE-AC02-07CH11358]; Office of Basic Energy
Sciences, Division of Materials Sciences and Engineering of the Office
of Science of U.S. Department of Energy
FX The Ames Laboratory is operated by Iowa State University of Science and
Technology for the U.S. Department of Energy under contract No.
DE-AC02-07CH11358. Work at the Ames Laboratory is supported by the
Office of Basic Energy Sciences, Division of Materials Sciences and
Engineering of the Office of Science of U.S. Department of Energy.
NR 111
TC 12
Z9 12
U1 2
U2 13
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA POSTFACH 101161, 69451 WEINHEIM, GERMANY
SN 0044-2313
EI 1521-3749
J9 Z ANORG ALLG CHEM
JI Z. Anorg. Allg. Chem.
PD NOV
PY 2011
VL 637
IS 13
SI SI
BP 1948
EP 1956
DI 10.1002/zaac.201100327
PG 9
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 863NS
UT WOS:000298171900003
ER
PT J
AU Thimmaiah, S
Crumpton, NA
Miller, GJ
AF Thimmaiah, Srinivasa
Crumpton, Nicholas A.
Miller, Gordon J.
TI Crystal Structures and Stabilities of gamma-and. gamma '-Brass Phases in
Pd2-xAuxZn11 (x=0.2-0.8): Vacancies vs. Valence Electron Concentration
SO ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
LA English
DT Article
DE Hume-Rothery compounds; Phase width; X-ray diffraction; Gamma brass
ID HUME-ROTHERY PHASE; QUASI-CRYSTAL; X-RAY; ZN; APPROXIMANTS; PD; SYSTEM;
ALLOY; ZINC; CD
AB To probe the effect of valence electron concentration (vec or e(-)/atom) on gamma-Pd2+xZn11-x phases a series of compounds Pd2-xAuxZn11 (x = 0.3-0.8; e(-)/atom = 1.70-1.75) was synthesized and structurally characterized. The gold-substituted.-brass type phase was observed for x <= 0.3, having a refined composition of Pd1.93Au0.27(1) Zn-10.80(1) (space group I (4) over bar 3m; a = 9.0953 (2) angstrom). Further addition of gold (0.4 <= x <= 0.8) leads to a 2 x 2 x 2 superstructure of the.-brass type phase (denoted as the. gamma-phase), with noticeable phase width (F (4) over bar 3m; 18.1827(4)-18.1799(4) angstrom). The. gamma-phase consists of four independent 26-atoms clusters, which are arranged around four distinct high symmetry points. The structural stability and phase width of. gamma-phase are primarily controlled by two of these clusters, both of which show mixed occupancies and occurrence of non-stoichiometric vacancies. Amongst all the observed. gamma-phases in the Pd-Au-Zn system, the vacancy concentration increases with increasing values of gold substitution. The vec of all observed. gamma-phases fall between 1.636 and 1.654 e(-)/atom values, which are greatly influenced by the nonstoichiometric vacancies present in the structure.
C1 [Thimmaiah, Srinivasa; Crumpton, Nicholas A.; Miller, Gordon J.] Iowa State Univ, Ames, IA 50011 USA.
[Thimmaiah, Srinivasa; Crumpton, Nicholas A.; Miller, Gordon J.] Ames Lab, US Dept Energy, Ames, IA 50011 USA.
RP Thimmaiah, S (reprint author), Iowa State Univ, Ames, IA 50011 USA.
EM srini@iastate.edu
RI Thimmaiah, Srinivasa/H-1049-2012
FU U.S. Department of Energy by Iowa State University [DE-AC02-07CH11358];
Materials Sciences Division of the Office of Basic Energy Sciences of
the U.S. Department of Energy
FX This work was carried out at the Ames Laboratory, which is operated for
the U.S. Department of Energy by Iowa State University under Contract
No. DE-AC02-07CH11358. This work was supported by the Materials Sciences
Division of the Office of Basic Energy Sciences of the U.S. Department
of Energy.
NR 42
TC 4
Z9 4
U1 1
U2 6
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0044-2313
J9 Z ANORG ALLG CHEM
JI Z. Anorg. Allg. Chem.
PD NOV
PY 2011
VL 637
IS 13
SI SI
BP 1992
EP 1999
DI 10.1002/zaac.201100357
PG 8
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 863NS
UT WOS:000298171900008
ER
PT J
AU Wilson, DK
Saparov, B
Bobev, S
AF Wilson, Dereck K.
Saparov, Bayrammurad
Bobev, Svilen
TI Synthesis, Crystal Structures and Properties of the Zintl Phases
Sr2ZnP2, Sr2ZnAs2, A(2)ZnSb(2) and A(2)ZnBi(2) (A = Sr and Eu)
SO ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
LA English
DT Article
DE Antimonides; Arsenides; Bismuthides; Solid-state structures; Zintl
phases
ID INTERMETALLIC COMPOUNDS; COLOSSAL MAGNETORESISTANCE;
MAGNETIC-PROPERTIES; DENSITY; ANTIMONIDES; CHAINS; PN; SB; SI
AB The new intermetallic compounds Sr2ZnP2, Sr2ZnAs2, A(2)ZnSb(2) and A(2)ZnBi(2) (A = Sr, Eu) have been synthesized from the corresponding elements through high-temperature reactions using the flux-growth method. Their structures have been established by single-crystal and powder X-ray diffraction. In all cases, the X-ray diffraction patterns can be successfully indexed based on hexagonal cells in the space group P6(3)/mmc (no. 194) with lattice parameters in the range a = 4.31-4.73 angstrom and c = 7.9-8.55 angstrom. The average structure can be described in the ZrBeSi type (Pearson symbol hP6; 3 unique positions) with defects on the zinc site - structure refinements indicate that every second zinc position is vacant, i.e., their formula unit is AZn(1-x)Pn with
x = 0.5
(A = Sr, Eu; Pn = P, As, Sb, Bi). No stoichiometry breadth was observed, which could imply that a super-structure with a long-range order of the zinc vacancies is plausible and evidence for such was sought using electron diffraction. The results from these experiments, as well as magnetic susceptibility measurements and band structure calculations using the LMTO code are also discussed.
C1 [Wilson, Dereck K.; Saparov, Bayrammurad; Bobev, Svilen] Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA.
[Saparov, Bayrammurad] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Bobev, S (reprint author), Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA.
EM bobev@udel.edu
FU University of Delaware; Petroleum Research Fund (ACS-PRF); US Military
Academy at West Point
FX Svilen Bobev gratefully acknowledges funding from the University of
Delaware and the Petroleum Research Fund (ACS-PRF). Cpt. Dereck Wilson
thanks the US Military Academy at West Point for the graduate student
fellowship (2008-2010). The authors are also indebted to Dr. Paul
Tobash, Dr. Sheng-Qing Xia, and Mr. Nian-Tzu Suen for their help with
the syntheses, the magnetic susceptibility measurements, and the
electronic structure calculations. Prof. Susan M. Kauzlarich (UC Davis)
is thanked for inspiring some of the work and for useful discussions.
NR 56
TC 8
Z9 8
U1 2
U2 30
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA POSTFACH 101161, 69451 WEINHEIM, GERMANY
SN 0044-2313
EI 1521-3749
J9 Z ANORG ALLG CHEM
JI Z. Anorg. Allg. Chem.
PD NOV
PY 2011
VL 637
IS 13
SI SI
BP 2018
EP 2025
DI 10.1002/zaac.201100177
PG 8
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 863NS
UT WOS:000298171900012
ER
PT J
AU Garten, CT
AF Garten, Charles T., Jr.
TI Comparison of forest soil carbon dynamics at five sites along a
latitudinal gradient
SO GEODERMA
LA English
DT Article
DE Labile soil carbon; Particulate organic matter; Mineral-associated
organic matter; Soil carbon turnover; Soil texture; Stable carbon
isotopes
ID ORGANIC-MATTER DECOMPOSITION; SOUTHERN APPALACHIAN MOUNTAINS; NET
NITROGEN MINERALIZATION; TEMPERATURE SENSITIVITY; TURNOVER TIMES;
LIGHT-FRACTION; STABILIZATION MECHANISMS; ISOTOPE FRACTIONATION;
VERTICAL-DISTRIBUTION; ELEVATION GRADIENT
AB The aim of this study was to compare the turnover time of labile soil carbon (C), in relation to temperature and soil texture, in several forest ecosystems that are representative of large areas of North America. Carbon and nitrogen (N) stocks, and C:N ratios, were measured in the forest floor, mineral soil, and two mineral soil fractions (particulate and mineral-associated organic matter, POM and MOM, respectively) at five AmeriFlux sites along a latitudinal gradient in the eastern United States. Sampling at four sites was replicated over two consecutive years. With one exception, forest floor and mineral soil C stocks increased from warm, southern sites (with fine-textured soils) to cool, northern sites (with more coarse-textured soils). The exception was a northern site, with less than 10% silt-clay content, that had a soil organic C stock similar to the southern sites. A two-compartment model was used to calculate the turnover time of labile soil organic C (MRT(U)) and the annual transfer of labile C to stable C (k(2)) at each site. Moving from south to north, MRT(U) increased from approximately 5 to 14 years. Carbon-13 enrichment factors (epsilon), that described the rate of change in delta(13)C through the soil profile, were associated with soil C turnover times. Consistent with its role in stabilization of soil organic C, silt-clay content was positively correlated (r=0.91; P <= 0.001) with parameter k(2). Latitudinal differences in the storage and turnover of soil C were related to mean annual temperature (MAT, degrees C), but soil texture superseded temperature when there was too little silt and clay to stabilize labile soil C and protect it from decomposition. Each site had a relatively high proportion of labile soil C (nearly 50% to a depth of 20 cm). Depending on unknown temperature sensitivities, large labile pools of forest soil C are at risk of decomposition in a warming climate, and losses could be disproportionately higher from coarse textured forest soils. (C) 2011 Elsevier B.V. All rights reserved.
C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
RP Garten, CT (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008,Mail Stop 6301, Oak Ridge, TN 37831 USA.
EM gartenctjr@ornl.gov
FU UT-Battelle, LLC [DE-AC05-00OR22725]; U.S. Department of Energy
[DE-AC05-00OR22725]; U.S. Department of Energy, Office of Science,
Biological and Environmental Research
FX This manuscript has been authored by UT-Battelle, LLC, under Contract
No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United
States Government retains and the publisher, by accepting the article
for publication, acknowledges that the United States Government retains
a non-exclusive, paid-up, irrevocable, worldwide license to publish or
reproduce the published form of this manuscript, or allow others to do
so, for United States Government purposes.; Research was sponsored by
the U.S. Department of Energy, Office of Science, Biological and
Environmental Research. Oak Ridge National Laboratory (ORNL) is managed
by UT-Battelle, LLC, for the U.S. Department of Energy under contract
DE-AC05-00OR22725. I wish to thank AmeriFlux site operators David
Hollinger (Bartlett Experimental Forest), J. William Munger (Harvard
Forest), Stephen Pallardy (Missouri Ozark), Knute Nadelhoffer
(University of Michigan Biological Station), and Tilden Meyers (Chestnut
Ridge Oak Ridge) for their hospitality and access to the study sites;
Kevin Hosman (Missouri Ozark), Jim Le Moine (University of Michigan
Biological Station), Don Todd Jr. (ORNL), Paul Hanson (ORNL), and Deanne
Brice (ORNL) for their assistance in the field or the laboratory. I also
wish to thank Paul Hanson and Peter Thornton (ORNL) for their reviews of
the draft manuscript.
NR 66
TC 15
Z9 16
U1 3
U2 69
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0016-7061
J9 GEODERMA
JI Geoderma
PD NOV
PY 2011
VL 167-68
BP 30
EP 40
DI 10.1016/j.geoderma.2011.08.007
PG 11
WC Soil Science
SC Agriculture
GA 861OL
UT WOS:000298029000005
ER
PT J
AU Shamoto, S
Wakimoto, S
Kodama, K
Ishikado, M
Christianson, AD
Lumsden, MD
Kajimoto, R
Nakamura, M
Inamura, Y
Arai, M
Kakurai, K
Esaka, F
Iyo, A
Kito, H
Eisaki, H
AF Shamoto, S.
Wakimoto, S.
Kodama, K.
Ishikado, M.
Christianson, A. D.
Lumsden, M. D.
Kajimoto, R.
Nakamura, M.
Inamura, Y.
Arai, M.
Kakurai, K.
Esaka, F.
Iyo, A.
Kito, H.
Eisaki, H.
TI Neutron scattering of iron-based superconductors
SO PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
LA English
DT Article; Proceedings Paper
CT 23rd International Symposium on Superconductivity (ISS)
CY NOV 01-03, 2010
CL Tsukuba, JAPAN
SP Int Superconduct Technol Ctr (ISTEC)
DE Inelastic neutron scattering; Low energy spin excitation; Iron-based
superconductor
ID LAYERED SUPERCONDUCTOR; BA0.6K0.4FE2AS2
AB Low-energy spin excitations have been studied on polycrystalline LaFeAsO1-xFx samples by inelastic neutron scattering. The Q-integrated dynamical spin susceptibility chi ''(omega) of the superconducting samples is found to be comparable to that of the magnetically ordered parent sample. On the other hand, chi ''(omega) almost vanishes at x = 0.158, where the superconducting transition temperature T-c is suppressed to 7 K. In addition, chi ''(omega) in optimally doped LaFeAsO0.918F0.082 with T-c = 29 K exhibits a spin resonance mode. The peak energy, E-res, when scaled by k(B)T(c) is similar to the value of about 4.7 reported in other high-T-c iron-based superconductors. This result suggests that there is intimate relationship between the dynamical spin susceptibility and high-T-c superconductivity in iron-based superconductors, and is consistent with a nesting condition between Fermi surfaces at the Gamma and M points. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Shamoto, S.; Wakimoto, S.; Kodama, K.; Ishikado, M.; Kakurai, K.] Japan Atom Energy Agcy, Quantum Beam Sci Directorate, Tokai, Ibaraki 3191195, Japan.
[Shamoto, S.; Wakimoto, S.; Kodama, K.; Ishikado, M.; Kajimoto, R.; Nakamura, M.; Inamura, Y.; Arai, M.; Kakurai, K.; Iyo, A.; Kito, H.; Eisaki, H.] JST TRIP, Tokyo 1020075, Japan.
[Christianson, A. D.; Lumsden, M. D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Kajimoto, R.; Nakamura, M.; Inamura, Y.; Arai, M.] Japan Atom Energy Agcy, J PARC Ctr, Tokai, Ibaraki 3191195, Japan.
[Esaka, F.] Japan Atom Energy Agcy, Nucl Sci & Engn Direcrorate, Tokai, Ibaraki 3191195, Japan.
[Iyo, A.; Kito, H.; Eisaki, H.] Natl Inst Adv Ind Sci & Technol, Nanoelect Res Inst, Tsukuba, Ibaraki 3058562, Japan.
RP Shamoto, S (reprint author), Japan Atom Energy Agcy, Quantum Beam Sci Directorate, Tokai, Ibaraki 3191195, Japan.
EM shamoto.shinichi@jaea.go.jp
RI christianson, andrew/A-3277-2016; Lumsden, Mark/F-5366-2012
OI christianson, andrew/0000-0003-3369-5884; Lumsden,
Mark/0000-0002-5472-9660
NR 25
TC 0
Z9 0
U1 0
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4534
J9 PHYSICA C
JI Physica C
PD NOV
PY 2011
VL 471
IS 21-22
BP 639
EP 642
DI 10.1016/j.physc.2011.05.015
PG 4
WC Physics, Applied
SC Physics
GA 853NQ
UT WOS:000297433400014
ER
PT J
AU Choi, H
Hong, S
No, K
AF Choi, Hyunwoo
Hong, Seungbum
No, Kwangsoo
TI Quantitative measurement of in-plane cantilever torsion for calibrating
lateral piezoresponse force microscopy
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article
ID FERROELECTRIC THIN-FILMS; RECONSTRUCTION; POLARIZATION
AB A simple quantitative measurement procedure of in-plane cantilever torsion for calibrating lateral piezoresponse force microscopy is presented. This technique enables one to determine the corresponding lateral inverse optical lever sensitivity (LIOLS) of the cantilever on the given sample. Piezoelectric coefficient, d(31) of BaTiO(3) single crystal (-81.62 +/- 40.22 pm/V) which was calculated using the estimated LIOLS was in good agreement with the reported value in literature. c 2011 American Institute of Physics. [doi: 10.1063/1.3660806]
C1 [Choi, Hyunwoo; Hong, Seungbum] Argonne Natl Lab, Div Mat Sci, Lemont, IL 60439 USA.
[Choi, Hyunwoo; No, Kwangsoo] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea.
RP Hong, S (reprint author), Argonne Natl Lab, Div Mat Sci, Lemont, IL 60439 USA.
EM hong@anl.gov; ksno@kaist.ac.kr
RI No, Kwangsoo/C-1983-2011; Choi, Hyunwoo/B-8669-2011; Hong,
Seungbum/B-7708-2009
OI Hong, Seungbum/0000-0002-2667-1983
FU U.S. Department of Energy Office of Science laboratory
[DE-AC02-06CH11357]; Nano RD program [2010-0019123]; National Research
Foundation of Korea [2010-0015063]; Ministry of Education, Science and
Technology, and Science and Technology; New & Renewable Energy of the
Korea Institute of Energy Technology Evaluation and Planning (KETEP);
Ministry of Knowledge Economy, Republic of Korea [20103020060010]
FX The submitted manuscript has been created by the UChicago Argonne, LLC,
Operator of Argonne National Laboratory ("Argonne"). Argonne, an 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 nonexclusive, 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. K.N. gratefully
acknowledges the financial support by Nano R&D program (2010-0019123)
and the Mid-career Researcher Program (2010-0015063) through the
National Research Foundation of Korea funded by Ministry of Education,
Science and Technology, and Science and Technology and New & Renewable
Energy of the Korea Institute of Energy Technology Evaluation and
Planning (KETEP) grant funded by the Ministry of Knowledge Economy,
Republic of Korea (Grant No. 20103020060010).
NR 18
TC 6
Z9 6
U1 0
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2011
VL 82
IS 11
AR 113706
DI 10.1063/1.3660806
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 860ID
UT WOS:000297941100026
PM 22128983
ER
PT J
AU Cobble, JA
Flippo, KA
Offermann, DT
Lopez, FE
Oertel, JA
Mastrosimone, D
Letzring, SA
Sinenian, N
AF Cobble, J. A.
Flippo, K. A.
Offermann, D. T.
Lopez, F. E.
Oertel, J. A.
Mastrosimone, D.
Letzring, S. A.
Sinenian, N.
TI High-resolution Thomson parabola for ion analysis
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article
ID ACCELERATION; TARGETS; BEAMS
AB A new, versatile Thomson parabola ion energy (TPIE) analyzer has been designed, constructed, and used at the OMEGA-EP facility. Laser-accelerated multi-MeV ions from hemispherical C targets are transmitted through a W pinhole into a multi-kG magnetic field and subsequently through a parallel electric field of up to 25 kV/cm. The ion drift region has a user-selected length of 10, 50, or 80 cm. With the highest fields, 400-MeV C(6+) and C(5+) may be resolved. TPIE is ten-inch manipulator (TIM)-mounted at OMEGA-EP and can be used opposite either of the EP ps beams. The instrument runs on pressure-interlocked 15-Vdc power available in EP TIM carts. Flux control derives from the insertion depth into the target chamber and the user-selected pinhole dimensions. The detector consists of CR39 backed by an image plate. A fully relativistic simulation code for calculating ion trajectories was employed for design optimization. Excellent agreement of code predictions with the actual ion positions on the detectors is observed. Through pit counting of carbon-ion tracks in CR39, it is shown that conversion efficiency of laser light to energetic carbon ions exceeds similar to 5% for these targets. (C) 2011 American Institute of Physics. [doi:10.1063/1.3658048]
C1 [Cobble, J. A.; Flippo, K. A.; Offermann, D. T.; Lopez, F. E.; Oertel, J. A.; Letzring, S. A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Mastrosimone, D.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
[Sinenian, N.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
RP Cobble, JA (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
RI Flippo, Kirk/C-6872-2009;
OI Flippo, Kirk/0000-0002-4752-5141; Offermann, Dustin/0000-0002-6033-4905
FU United States Department of Energy (DOE) [DE-AC52-06NA 25396]
FX The authors express appreciation to Tom Archuleta, George Sandoval,
Robert Aragonez, and Tom Gravlin for exceptional contributions to the
design, construction, and fielding of TPIE for this new capability. This
work has been performed under the auspices of the United States
Department of Energy (DOE) (Contract No. DE-AC52-06NA 25396).
NR 26
TC 13
Z9 13
U1 0
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2011
VL 82
IS 11
AR 113504
DI 10.1063/1.3658048
PG 9
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 860ID
UT WOS:000297941100015
PM 22128973
ER
PT J
AU Gao, X
Burns, C
Casa, D
Upton, M
Gog, T
Kim, J
Li, CY
AF Gao, Xuan
Burns, Clement
Casa, Diego
Upton, Mary
Gog, Thomas
Kim, Jungho
Li, Chengyang
TI Development of a graphite polarization analyzer for resonant inelastic
x-ray scattering
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article
ID SPECTROSCOPY; EXCITATIONS; DEPENDENCE; DETECTORS; CRYSTALS
AB Resonant inelastic x-ray scattering (RIXS) is a powerful technique for studying electronic excitations in correlated electron systems. Current RIXS spectrometers measure the changes in energy and momentum of the photons scattered by the sample. A powerful extension of the RIXS technique is the measurement of the polarization state of the scattered photons which contains information about the symmetry of the excitations. This long-desired addition has been elusive because of significant technical challenges. This paper reports the development of a new diffraction-based polarization analyzer which discriminates between linear polarization components of the scattered photons. The double concave surface of the polarization analyzer was designed as a good compromise between energy resolution and throughput. Such a device was fabricated using highly oriented pyrolytic graphite for measurements at the Cu K-edge incident energy. Preliminary measurements on a CuGeO(3) sample are presented. (C) 2011 American Institute of Physics. [doi:10.1063/1.3662472]
C1 [Gao, Xuan; Burns, Clement; Li, Chengyang] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
[Casa, Diego; Upton, Mary; Gog, Thomas; Kim, Jungho] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Gao, X (reprint author), Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
RI gao, xuan/E-1526-2014; Casa, Diego/F-9060-2016
OI gao, xuan/0000-0002-7689-7999;
FU DOE [DE-FG02-99ER45772]; U. S. Department of Energy, Office of Science,
Office of Basic Energy Sciences [DE-AC02-06CH11357]
FX This project was supported by DOE Grant No. DE-FG02-99ER45772. Use of
the Advanced Photon Source at Argonne National Laboratory was supported
by the U. S. Department of Energy, Office of Science, Office of Basic
Energy Sciences, under Contract No. DE-AC02-06CH11357.
NR 23
TC 5
Z9 5
U1 1
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2011
VL 82
IS 11
AR 113108
DI 10.1063/1.3662472
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 860ID
UT WOS:000297941100009
PM 22128967
ER
PT J
AU Ghannadzadeh, S
Coak, M
Franke, I
Goddard, PA
Singleton, J
Manson, JL
AF Ghannadzadeh, S.
Coak, M.
Franke, I.
Goddard, P. A.
Singleton, J.
Manson, J. L.
TI Measurement of magnetic susceptibility in pulsed magnetic fields using a
proximity detector oscillator
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article
ID TUNNEL-DIODE OSCILLATOR; QUANTUM OSCILLATIONS; ORGANIC CONDUCTORS;
INSULATOR; SUPERCONDUCTIVITY; TEMPERATURE
AB We present a novel susceptometer with a particularly small spatial footprint and no moving parts. The susceptometer is suitable for use in systems with limited space where magnetic measurements may not have been previously possible, such as in pressure cells and rotators, as well as in extremely high pulsed fields. The susceptometer is based on the proximity detector oscillator, which has a broad dynamic resonant frequency range and has so far been used predominantly for transport measurements. We show that for insulating samples, the resonance frequency behavior as a function of field consists of a magnetoresistive and an inductive component, originating, respectively, from the sensor coil and the sample. The response of the coil is modeled, and upon subtraction of the magnetoresistive component the dynamic magnetic susceptibility and magnetization can be extracted. We successfully measure the magnetization of the organic molecular magnets Cu(H2O)(5)(VOF4)(H2O) and [Cu(HF2)(pyz)(2)]BF4 in pulsed magnetic fields and by comparing the results to that from a traditional extraction susceptometer confirm that the new system can be used to measure and observe magnetic susceptibilities and phase transitions. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3653395]
C1 [Ghannadzadeh, S.; Coak, M.; Franke, I.; Goddard, P. A.] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England.
[Singleton, J.] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA.
[Manson, J. L.] Eastern Washington Univ, Dept Chem & Biochem, Cheney, WA 99004 USA.
RP Ghannadzadeh, S (reprint author), Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England.
EM s.ghannadzadeh1@physics.ox.ac.uk
RI Ghannadzadeh, Saman/A-4080-2012; Goddard, Paul/A-8638-2015
OI Ghannadzadeh, Saman/0000-0001-6488-9433; Goddard,
Paul/0000-0002-0666-5236
FU EPSRC (UK)
FX The authors would like to thank M. M. Altarawneh and C. H. Mielke for
helpful discussions. This work is supported by the EPSRC (UK).
NR 54
TC 10
Z9 10
U1 2
U2 31
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2011
VL 82
IS 11
AR 113902
DI 10.1063/1.3653395
PG 8
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 860ID
UT WOS:000297941100034
PM 22128991
ER
PT J
AU Hollmann, EM
Chousal, L
Fisher, RK
Hernandez, R
Jackson, GL
Lanctot, MJ
Pidcoe, SV
Shankara, J
Taussig, DA
AF Hollmann, E. M.
Chousal, L.
Fisher, R. K.
Hernandez, R.
Jackson, G. L.
Lanctot, M. J.
Pidcoe, S. V.
Shankara, J.
Taussig, D. A.
TI Soft x-ray array system with variable filters for the DIII-D tokamak
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article
AB Recent upgrades to the soft x-ray (SXR) array system on the DIII-D tokamak are described. The system consists of two 32-channel arrays at one toroidal location and three toroidally distributed 12-channel arrays. The 32-channel arrays have been completely rebuilt to allow the switching of SXR filters without breaking vacuum. The 12-channel arrays have had upgrades performed to detectors, view slits, and data acquisition. Absolute extreme ultraviolet (AXUV) photodiodes are used as detectors in all arrays, allowing detection of photons ranging in energy from 2 eV to 10 keV. In the fixed-filter arrays, 127 mu m Be filters are used. In the variable-filter arrays, filter wheels are used to switch between five different possible pinhole/filter combinations. (C) 2011 American Institute of Physics. [doi:10.1063/1.3660816]
C1 [Hollmann, E. M.; Chousal, L.; Hernandez, R.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Fisher, R. K.; Jackson, G. L.; Pidcoe, S. V.; Taussig, D. A.] Gen Atom Co, San Diego, CA 92186 USA.
[Lanctot, M. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Shankara, J.] Inst Plasma Res, Bhat, Gandhinagar, India.
RP Hollmann, EM (reprint author), Univ Calif San Diego, 9500 Gilman Dr, La Jolla, CA 92093 USA.
RI Lanctot, Matthew J/O-4979-2016
OI Lanctot, Matthew J/0000-0002-7396-3372
FU (U.S.) Department of Energy (DOE) [DE FG02 07ER54917, DE-FC02-04ER54698,
DE-AC52-07NA27344]
FX This work was supported in part by the (U.S.) Department of Energy (DOE)
under DE FG02 07ER54917, DE-FC02-04ER54698, and DE-AC52-07NA27344. The
technical support of D. Ayala, W. Carrig, J. Kulchar, K. LaPinska, D.
Piglowski, D. Sundstrom, and B. Williams is gratefully acknowledged.
NR 9
TC 3
Z9 3
U1 1
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2011
VL 82
IS 11
AR 113507
DI 10.1063/1.3660816
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 860ID
UT WOS:000297941100018
PM 22128975
ER
PT J
AU Waldmann, O
Ludewigt, B
AF Waldmann, Ole
Ludewigt, Bernhard
TI Measurements of beam current density and proton fraction of a
permanent-magnet microwave ion source
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article
ID ND-FE-B; NEUTRON GENERATOR; PERFORMANCE; PLASMA
AB A permanent-magnet microwave ion source has been built for use in a high-yield, compact neutron generator. The source has been designed to produce up to 100 mA of deuterium and tritium ions. The electron-cyclotron resonance condition is met at a microwave frequency of 2.45 GHz and a magnetic field strength of 87.5 mT. The source operates at a low hydrogen gas pressure of about 0.15 Pa. Hydrogen beams with a current density of 40 mA/cm(2) have been extracted at a microwave power of 450 W. The dependence of the extracted proton beam fraction on wall materials and operating parameters was measured and found to vary from 45% for steel to 95% for boron nitride as a wall liner material. (C) 2011 American Institute of Physics. [doi:10.1063/1.3660282]
C1 [Waldmann, Ole; Ludewigt, Bernhard] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Waldmann, O (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM Waldmann@Physik.HU-Berlin.de
FU Office of Proliferation Detection of the U.S. Department of Energy at
the Lawrence Berkeley National Laboratory [NA-22, DE-AC02-05CHI1231]
FX This work was supported by the Office of Proliferation Detection (NA-22)
of the U.S. Department of Energy at the Lawrence Berkeley National
Laboratory under Contract No. DE-AC02-05CHI1231.
NR 18
TC 6
Z9 6
U1 1
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2011
VL 82
IS 11
AR 113505
DI 10.1063/1.3660282
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 860ID
UT WOS:000297941100016
PM 22128974
ER
PT J
AU Yoo, CS
Wei, HY
Chen, JY
Shen, GY
Chow, P
Xiao, YM
AF Yoo, Choong-Shik
Wei, Haoyan
Chen, Jing-Yin
Shen, Guoyin
Chow, Paul
Xiao, Yuming
TI Time- and angle-resolved x-ray diffraction to probe structural and
chemical evolution during Al-Ni intermetallic reactions
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article
ID DETECTOR
AB We present novel time-and angle-resolved x-ray diffraction (TARXD) capable of probing structural and chemical evolutions during rapidly propagating exothermic intermetallic reactions between Ni-Al multilayers. The system utilizes monochromatic synchrotron x-rays and a two-dimensional (2D) pixel array x-ray detector in combination of a fast-rotating diffraction beam chopper, providing a time (in azimuth) and angle (in distance) resolved x-ray diffraction image continuously recorded at a time resolution of similar to 30 mu s over a time period of 3 ms. Multiple frames of the TARXD images can also be obtained with time resolutions between 30 and 300 mu s over three to several hundreds of milliseconds. The present method is coupled with a high-speed camera and a six-channel optical pyrometer to determine the reaction characteristics including the propagation speed of 7.6 m/s, adiabatic heating rate of 4.0 x 10(6) K/s, and conductive cooling rate of 4.5 x 10(4) K/s. These time-dependent structural and temperature data provide evidences for the rapid formation of intermetallic NiAl alloy within 45 mu s, thermal expansion coefficient of 1.1 x 10(-6) K for NiAl, and crystallization of V and Ag(3)In in later time. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3658817]
C1 [Yoo, Choong-Shik; Wei, Haoyan; Chen, Jing-Yin] Washington State Univ, Dept Chem, Inst Shock Phys, Pullman, WA 99164 USA.
[Shen, Guoyin; Chow, Paul; Xiao, Yuming] Carnegie Inst Washington, Geophys Lab, Adv Photon Source, HPCAT, Argonne, IL 60439 USA.
RP Yoo, CS (reprint author), Washington State Univ, Dept Chem, Inst Shock Phys, Pullman, WA 99164 USA.
EM csyoo@wsu.edu
FU U.S. DHS [2008-ST-061-ED0001]; NSF-DMR [0854618]
FX The x-ray work was done using the HPCAT beamline (16IDD station) of the
APS. The present study has been supported by the U.S. DHS under Award
No. 2008-ST-061-ED0001 and NSF-DMR (Grant No. 0854618). The views and
conclusions contained in this paper are those of the authors and should
not be interpreted as necessarily representing the official policies,
either expressed or implied, of the U.S. Department of Homeland
Security.
NR 22
TC 7
Z9 7
U1 2
U2 11
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2011
VL 82
IS 11
AR 113901
DI 10.1063/1.3658817
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 860ID
UT WOS:000297941100033
PM 22128990
ER
PT J
AU Buchheit, TE
Battaile, CC
Weinberger, CR
Holm, EA
AF Buchheit, Thomas E.
Battaile, Corbett C.
Weinberger, Christopher R.
Holm, Elizabeth A.
TI Multi-scale Modeling of Low-temperature Deformation in b.c.c. Metals
SO JOM
LA English
DT Article
ID PLASTIC-DEFORMATION; SCREW DISLOCATIONS; MOLYBDENUM; POLYCRYSTAL;
EVOLUTION; GLIDE
AB The deformation of body-centered cubic (b.c.c.) metals such as W, Ta, and Mo is complicated both by complex deformation mechanisms at the atomic scale and by microstructural variations at the microscale. In this paper, we develop a multiscale model for low-temperature deformation in b.c.c. metals. This model integrates atomic-scale observations into a single crystal constitutive relationship that is implemented in a polycrystal plasticity grain-scale simulation. We determine that the details of deformation at the microscale differ substantially between b.c.c. and f.c.c. metals.
C1 [Buchheit, Thomas E.; Battaile, Corbett C.; Weinberger, Christopher R.; Holm, Elizabeth A.] Sandia Natl Labs, Computat Mat Sci & Engn Dept, Albuquerque, NM 87185 USA.
RP Buchheit, TE (reprint author), Sandia Natl Labs, Computat Mat Sci & Engn Dept, POB 5800, Albuquerque, NM 87185 USA.
EM eaholm@sandia.gov
RI Weinberger, Christopher/E-2602-2011; Holm, Elizabeth/S-2612-2016
OI Weinberger, Christopher/0000-0001-9550-6992; Holm,
Elizabeth/0000-0003-3064-5769
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX Sandia National Laboratories is a multi-program laboratory managed and
operated by Sandia Corporation, a wholly owned subsidiary of Lockheed
Martin Corporation, for the U.S. Department of Energy's National Nuclear
Security Administration under contract DE-AC04-94AL85000.
NR 17
TC 9
Z9 9
U1 2
U2 19
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1047-4838
J9 JOM-US
JI JOM
PD NOV
PY 2011
VL 63
IS 11
BP 33
EP 36
PG 4
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering; Mineralogy; Mining & Mineral Processing
SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy;
Mining & Mineral Processing
GA 859IM
UT WOS:000297870100004
ER
PT J
AU Gong, KP
Vukmirovic, MB
Ma, C
Zhu, YM
Adzic, RR
AF Gong, Kuanping
Vukmirovic, Miomir B.
Ma, Chao
Zhu, Yimei
Adzic, Radoslav R.
TI Synthesis and catalytic activity of Pt monolayer on Pd tetrahedral
nanocrystals with CO-adsorption-induced removal of surfactants
SO JOURNAL OF ELECTROANALYTICAL CHEMISTRY
LA English
DT Article
DE Electrocatalyst; Carbon monoxide; Platinum monolayer; Oxygen reduction;
Tetrahedral nanocrystals
ID OXYGEN-REDUCTION; ELECTROCATALYSTS; NANOPARTICLES; ELECTRODES;
NANOWIRES; STABILITY; SHELL; SHAPE; SIZE; 3D
AB We synthesized the Pt monolayer shell-Pd tetrahedral core electrocatalysts that are notable for their high activity and stable performance. A small number of low-coordination sites and defects, and high content of the (1 1 1)-oriented facets on Pd tetrahedron makes them a suitable support for a Pt monolayer to obtain an active O-2 reduction reaction (ORR) electrocatalyst. The surfactants, used to control size and shape of Pd tetrahedral nanoparticles, are difficult to remove and cause adverse effects on the ORR. We describe a simple and noninvasive method to synthesize high-purity tetrahedral Pd nanocrystals (TH Pd) by combining a hydrothermal route and CO adsorption-induced removal of surfactants. Poly(vinylpyrrolidone) (PVP), used as a protecting and reducing agent in hydrothermal reactions, is strongly bonded to the surface of the resulting nanocrystals. We demonstrate that PVP was displaced efficiently by adsorbed CO. A clean surface was achieved upon CO stripping at a high potential (1.0 V vs RHE). It played a decisive role in improving the activity of the Pt monolayer/TH Pd electrocatalyst for the ORR. Furthermore, the results demonstrate a versatile method for removal of surfactants from various nanoparticles that severely limited their applications. (C) 2011 Elsevier B.V. All rights reserved,
C1 [Gong, Kuanping; Vukmirovic, Miomir B.; Adzic, Radoslav R.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
[Ma, Chao; Zhu, Yimei] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Adzic, RR (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
EM Adzic@bnl.gov
RI Ma, Chao/J-4569-2015
FU US Department of Energy, Basic Energy Sciences, Divisions of Chemical
and Material Sciences and Material Sciences and Engineering Division
[DE-AC02-98CH10886]; Center for Functional Nanomaterials, BNL under DOE
[DE-AC02-98CH10886]
FX This work is supported by US Department of Energy, Basic Energy
Sciences, Divisions of Chemical and Material Sciences and Material
Sciences and Engineering Division, under the Contract No.
DE-AC02-98CH10886. Work done in part at the Center for Functional
Nanomaterials, BNL under DOE Contract No. DE-AC02-98CH10886.
NR 27
TC 16
Z9 16
U1 6
U2 58
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 1572-6657
J9 J ELECTROANAL CHEM
JI J. Electroanal. Chem.
PD NOV 1
PY 2011
VL 662
IS 1
SI SI
BP 213
EP 218
DI 10.1016/j.jelechem.2011.07.008
PG 6
WC Chemistry, Analytical; Electrochemistry
SC Chemistry; Electrochemistry
GA 859PL
UT WOS:000297888200028
ER
PT J
AU Johnston, CM
Cao, DX
Choi, JH
Babu, PK
Garzon, F
Zelenay, P
AF Johnston, Christina M.
Cao, Dianxue
Choi, Jong-Ho
Babu, Panakkattu K.
Garzon, Fernando
Zelenay, Piotr
TI Se-modified Ru nanoparticles as ORR catalysts - Part 1: Synthesis and
analysis by RRDE and in PEFCs
SO JOURNAL OF ELECTROANALYTICAL CHEMISTRY
LA English
DT Article
DE Se/Ru; Oxygen reduction; Methanol tolerance; Direct methanol fuel cell
ID OXYGEN REDUCTION REACTION; METHANOL FUEL-CELLS; IN-SITU EXAFS; RING-DISK
ELECTRODE; SUPPORTED PT-NI; SURFACE-AREA; CONTAINING ELECTROCATALYSTS;
TEMPERATURE-DEPENDENCE; MIXED-REACTANT; ALLOY ELECTROCATALYSTS
AB We report a new method of preparation of a methanol-tolerant Se/Ru cathode catalyst for the direct methanol fuel cell (DMFC) [1,2], whereby selenium is deposited on ruthenium nanoparticles by H(2)-reduction of SeO(2) in aqueous solution at room temperature. The obtained Se/Ru(aq) was studied by electrochemical measurements and tested as a cathode catalyst in H(2)-air and direct methanol fuel cells. The new catalyst formulation (Se/Ru(aq)) is shown to be superior to Se/Ru synthesized from xylenes solvent [3] and to Ru black by RRDE measurements, in terms of both activity and selectivity for complete oxygen reduction to water. Although Ru black is less active, the Tafel slopes and activation energies of Se/Ru catalysts and reduced-Ru black are similar, implying similar ORR mechanisms. In H(2)-air fuel cell tests, Se/Ru(aq) was more active than Se/Ru(xyl) at all voltages. Compared to Ru black, Se/Ru(aq) was superior at low current densities, but Ru black slightly exceeded the performance of Se/Ru at high current densities. To explain the RRDE and fuel cell observations, the two roles of Se as an inhibitor of Ru oxidation and as a site-blocker are discussed. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Johnston, Christina M.; Choi, Jong-Ho; Garzon, Fernando; Zelenay, Piotr] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
[Cao, Dianxue; Babu, Panakkattu K.] Univ Illinois, Dept Chem, Urbana, IL 61801 USA.
RP Johnston, CM (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, POB 1663, Los Alamos, NM 87545 USA.
EM cjohnston@lanl.gov; zelenay@lanl.gov
RI Johnston, Christina/A-7344-2011
FU Department of Energy (DOE): Office of Hydrogen, Fuel Cells &
Infrastructure Technologies; US Army Research Office; Los Alamos
National Laboratory
FX We would like to thank Rangachary Mukundan for the characterization of
some of the catalysts by XRD. We would also like to acknowledge
Professor Nicolas Alonso-Vante of the University of Poitiers, France,
for collaborative discussions. Gratefully acknowledged is financial
support for this work received from the Department of Energy (DOE):
Office of Hydrogen, Fuel Cells & Infrastructure Technologies, the US
Army Research Office, and Los Alamos National Laboratory. Christina M.
Johnston is grateful for a postdoctoral fellowship from Los Alamos
National Laboratory.
NR 73
TC 8
Z9 8
U1 7
U2 43
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 1572-6657
J9 J ELECTROANAL CHEM
JI J. Electroanal. Chem.
PD NOV 1
PY 2011
VL 662
IS 1
SI SI
BP 257
EP 266
DI 10.1016/j.jelechem.2011.07.015
PG 10
WC Chemistry, Analytical; Electrochemistry
SC Chemistry; Electrochemistry
GA 859PL
UT WOS:000297888200033
ER
PT J
AU Choi, JH
Johnston, CM
Cao, DX
Babu, PK
Zelenay, P
AF Choi, Jong-Ho
Johnston, Christina M.
Cao, Dianxue
Babu, Panakkattu K.
Zelenay, Piotr
TI Se-modified Ru nanoparticles as ORR catalysts
SO JOURNAL OF ELECTROANALYTICAL CHEMISTRY
LA English
DT Article
DE Se/Ru; Oxygen reduction; Methanol tolerance; Direct methanol fuel cell
ID OXYGEN REDUCTION REACTION; METHANOL FUEL-CELLS; CONTAINING
ELECTROCATALYSTS; MIXED-REACTANT; RUTHENIUM; PERFORMANCE; KINETICS;
SURFACE; ELECTROOXIDATION; ELECTROLYTE
AB The synthesis, electrochemical analysis, and hydrogen-air fuel cell testing results for a new type of Se/Ru catalyst called Se/Ru(aq) were described in Part 1. In this second report, we present methanol tolerance studies and direct methanol fuel cell testing for the same catalyst. A "methanol-tolerant" catalyst does not oxidize methanol, nor becomes depolarized by its presence, which is a desirable property for DMFC cathodes used with methanol-permeable membranes or in mixed-reactant designs. In perchloric acid electrolyte, the Se/Ru(aq) catalyst was found to be highly tolerant to 1.0 M methanol. More importantly, in fuel-cell testing as a DMFC cathode, Se/Ru(aq) was shown to be highly tolerant to methanol crossing through the membrane (from the anode side) up to a feed concentration of 17 M. The results were compared to those obtained using unmodified Ru black and Pt black at the DMFC cathode, in order to gain insight into the catalyst function and to compare the performance to relevant benchmarks. Compared to Pt cathodes, the performance of Se/Ru(aq) is significantly better at high methanol concentrations (e.g., 17 M), suggesting their use either in DMFCs with high methanol feed concentrations or in mixed-reactant fuel cells. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Choi, Jong-Ho; Johnston, Christina M.; Zelenay, Piotr] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
[Cao, Dianxue; Babu, Panakkattu K.] Univ Illinois, Dept Chem, Urbana, IL 61801 USA.
RP Johnston, CM (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, POB 1663, Los Alamos, NM 87545 USA.
EM cjohnston@lanl.gov; zelenay@lanl.gov
RI Johnston, Christina/A-7344-2011
FU Department of Energy (DOE): Office of Hydrogen, Fuel Cells &
Infrastructure Technologies; US Army Research Office; Los Alamos
National Laboratory
FX We would like to thank Fernando Garzon and Rangachary Mukundan for the
characterization of the catalysts by XRD and XRF. We would also like to
acknowledge Professor Nicolas Alonso-Vante of the University of
Poitiers, France, for collaborative discussions. Gratefully acknowledged
is financial support for this work received from the Department of
Energy (DOE): Office of Hydrogen, Fuel Cells & Infrastructure
Technologies, the US Army Research Office, and Los Alamos National
Laboratory. Christina M. Johnston is grateful for support from a
postdoctoral fellowship from Los Alamos National Laboratory.
NR 30
TC 5
Z9 5
U1 8
U2 27
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 1572-6657
J9 J ELECTROANAL CHEM
JI J. Electroanal. Chem.
PD NOV 1
PY 2011
VL 662
IS 1
SI SI
BP 267
EP 273
DI 10.1016/j.jelechem.2011.07.029
PG 7
WC Chemistry, Analytical; Electrochemistry
SC Chemistry; Electrochemistry
GA 859PL
UT WOS:000297888200034
ER
PT J
AU Aarts, G
Allton, C
Kim, S
Lombardo, MP
Oktay, MB
Ryan, SM
Sinclair, DK
Skullerud, JI
AF Aarts, G.
Allton, C.
Kim, S.
Lombardo, M. P.
Oktay, M. B.
Ryan, S. M.
Sinclair, D. K.
Skullerud, J. -I.
TI What happens to the gamma and eta(b) in the quark-gluon plasma?
Bottomonium spectral functions from lattice QCD
SO JOURNAL OF HIGH ENERGY PHYSICS
LA English
DT Article
DE Lattice QCD; Thermal Field Theory
ID FINITE-TEMPERATURE; HEAVY QUARKONIUM; FIELD-THEORIES; CHARMONIUM;
SPECTROSCOPY
AB We study bottomonium spectral functions in the quark-gluon plasma in the gamma and eta(b) channels, using lattice QCD simulations with two flavours of light quark on highly anisotropic lattices. The bottom quark is treated with nonrelativistic QCD (NRQCD). In the temperature range we consider, 0.42 <= T/T-c <= 2.09, we find that the ground states survive, whereas the excited states are suppressed as the temperature is increased. The position and width of the ground states are compared to analytical effective field theory (EFT) predictions. Systematic uncertainties of the maximum entropy method (MEM), used to construct the spectral functions, are discussed in some detail.
C1 [Aarts, G.; Allton, C.; Kim, S.] Swansea Univ, Dept Phys, Swansea, W Glam, Wales.
[Kim, S.] Sejong Univ, Dept Phys, Seoul 143747, South Korea.
[Lombardo, M. P.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, RM, Italy.
[Lombardo, M. P.] Univ Berlin, D-12489 Berlin, Germany.
[Oktay, M. B.] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA.
[Ryan, S. M.] Trinity Coll Dublin, Sch Math, Dublin 2, Ireland.
[Sinclair, D. K.] Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA.
[Skullerud, J. -I.] Natl Univ Ireland Maynooth, Dept Math Phys, Maynooth, Kildare, Ireland.
RP Aarts, G (reprint author), Swansea Univ, Dept Phys, Singleton Pk, Swansea, W Glam, Wales.
EM g.aarts@swan.ac.uk; c.allton@swansea.ac.uk; skim@sejong.ac.kr;
Mariapaola.Lombardo@lnf.infn.it; oktay@physics.utah.edu;
ryan@maths.tcd.ie; dks@hep.anl.gov; jonivar@thphys.nuim.ie
OI Aarts, Gert/0000-0002-6038-3782
FU HEA; European Union; Irish Government; STFC; BIS; Swansea University;
National Research Foundation of Korea; Korea government (MEST)
[2011-0026688]; Research Executive Agency (REA) of the European Union
[PITN-GA-2009-238353]; Science Foundation Ireland [11/RFP.1/PHY/3201,
08-RFP-PHY1462]; US Department of Energy [DE-AC02-06CH11357]
FX We thank Mikko Laine for discussion and clarification. CA, GA and MPL
thank Trinity College Dublin and the National University of Ireland
Maynooth for hospitality. We acknowledge the support and infrastructure
provided by the Trinity Centre for High Performance Computing and the
IITAC project funded by the HEA under the Program for Research in Third
Level Institutes (PRTLI) co-funded by the Irish Government and the
European Union. The work of CA and GA is carried as part of the UKQCD
collaboration and the DiRAC Facility jointly funded by STFC, the Large
Facilities Capital Fund of BIS and Swansea University. GA and CA are
supported by STFC. SK is grateful to STFC for a Visiting Researcher
Grant and supported by the National Research Foundation of Korea grant
funded by the Korea government (MEST) No. 2011-0026688. SR is supported
by the Research Executive Agency (REA) of the European Union under Grant
Agreement number PITN-GA-2009-238353 (ITN STRONGnet) and the Science
Foundation Ireland, grant no. 11/RFP.1/PHY/3201. DKS is supported in
part by US Department of Energy contract DE-AC02-06CH11357. JIS is
supported by Science Foundation Ireland grant 08-RFP-PHY1462.
NR 65
TC 32
Z9 32
U1 1
U2 6
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1029-8479
J9 J HIGH ENERGY PHYS
JI J. High Energy Phys.
PD NOV
PY 2011
IS 11
AR 103
DI 10.1007/JHEP11(2011)103
PG 25
WC Physics, Particles & Fields
SC Physics
GA 855NX
UT WOS:000297572500051
ER
PT J
AU Saremi, O
Sohrabi, KA
AF Saremi, Omid
Sohrabi, Kiyoumars A.
TI Causal three-point functions and nonlinear second-order hydrodynamic
coefficients in AdS/CFT
SO JOURNAL OF HIGH ENERGY PHYSICS
LA English
DT Article
DE AdS-CFT Correspondence; Holography and quark-gluon plasmas
ID HIGHER-DERIVATIVE CORRECTIONS; THERMODYNAMICS; TIME
AB In the context of N = 4 SYM, we compute the finite 't Hooft coupling lambda correction to the non-linear second-order hydrodynamic coefficient lambda(3) from a Kubo formula based on fully retarded three-point functions using AdS/CFT. Although lambda(3) is known to vanish in the infinite 't Hooft coupling limit, we find that the finite lambda correction is non-zero. We also present a set of Kubo formulae for the non-linear coefficients lambda(1,2,3,) which is more convenient than the one that has appeared recently elsewhere.
C1 [Saremi, Omid] Univ Calif Berkeley, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA.
[Saremi, Omid] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Saremi, Omid] Univ Calif Berkeley, Lawrence Berkeley Lab, Theoret Phys Grp, Berkeley, CA 94720 USA.
[Sohrabi, Kiyoumars A.] McGill Univ, Dept Phys, Montreal, PQ, Canada.
RP Saremi, O (reprint author), Univ Calif Berkeley, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA.
EM omid.saremi@berkeley.edu; kiyoumars@physics.mcgill.ca
FU Berkeley Center for Theoretical Physics, department of physics at UC
Berkeley; DOE [DE-AC02-05CH11231]; Natural Sciences and Engineering
Research Council of Canada
FX After completing our work, we became aware of related work by Peter
Arnold, Diana Vaman, Chaolun Wu and Wei Xiao. We would like to thank Guy
D. Moore for valuable discussions. O.S. is grateful to Kevin Schaeffer,
Kostas Skenderis and Balt Van Rees. O.S. is supported by the Berkeley
Center for Theoretical Physics, department of physics at UC Berkeley and
in part by DOE, under contract DE-AC02-05CH11231. K. S. work is
supported in part by the Natural Sciences and Engineering Research
Council of Canada.
NR 19
TC 8
Z9 9
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1029-8479
J9 J HIGH ENERGY PHYS
JI J. High Energy Phys.
PD NOV
PY 2011
IS 11
AR 147
DI 10.1007/JHEP11(2011)147
PG 14
WC Physics, Particles & Fields
SC Physics
GA 855NX
UT WOS:000297572500008
ER
PT J
AU Vecchi, L
AF Vecchi, Luca
TI A natural hierarchy and a low new physics scale from a bulk Higgs
SO JOURNAL OF HIGH ENERGY PHYSICS
LA English
DT Article
DE Beyond Standard Model; AdS-CFT Correspondence; Technicolor and Composite
Models
ID MODEL
AB We show that a bulk Higgs with a mass saturating the Breitenlohner-Freedman bound can naturally generate and stabilize an exponential hierarchy on an asymptotically AdS background provided appropriate UV boundary conditions are chosen. Such a framework is dual to a strongly coupled, large N CFT deformed by a marginally relevant Higgs mass operator. On the gravity side, the marginally relevant nature of the Higgs mass operator implies that the Higgs VEV is maximally spread in the bulk. This feature significantly decreases the lower bound on the new physics scale in models that address the SM flavor problem. In this framework the radion has a mass strictly lighter than the Kaluza-Klein scale, and the collider phenomenology resembles that of composite Higgs models.
C1 Los Alamos Natl Lab, Theoret Div 2, Los Alamos, NM 87545 USA.
RP Vecchi, L (reprint author), Los Alamos Natl Lab, Theoret Div 2, Los Alamos, NM 87545 USA.
EM vecchi@lanl.gov
OI VECCHI, Luca/0000-0001-5254-8826
FU U.S. Department of Energy at Los Alamos National Laboratory
[DE-AC52-06NA25396]
FX We thank Kaustubh Agashe for comments on the manuscript and Ian
Shoemaker for discussions. This work has been supported by the U.S.
Department of Energy at Los Alamos National Laboratory under Contract
No. DE-AC52-06NA25396.
NR 31
TC 3
Z9 3
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1029-8479
J9 J HIGH ENERGY PHYS
JI J. High Energy Phys.
PD NOV
PY 2011
IS 11
AR 102
DI 10.1007/JHEP11(2011)102
PG 23
WC Physics, Particles & Fields
SC Physics
GA 855NX
UT WOS:000297572500052
ER
PT J
AU Yin, L
Verhertbruggen, Y
Oikawa, A
Manisseri, C
Knierim, B
Prak, L
Jensen, JK
Knox, JP
Auer, M
Willats, WGT
Scheller, HV
AF Yin, Lan
Verhertbruggen, Yves
Oikawa, Ai
Manisseri, Chithra
Knierim, Bernhard
Prak, Lina
Jensen, Jacob Kruger
Knox, J. Paul
Auer, Manfred
Willats, William G. T.
Scheller, Henrik Vibe
TI The Cooperative Activities of CSLD2, CSLD3, and CSLD5 Are Required for
Normal Arabidopsis Development
SO MOLECULAR PLANT
LA English
DT Article
DE Cellulose synthase like; hemicelluloses; mannan; glycosyltransferases;
polysaccharide; plant development
ID CELLULOSE-SYNTHASE-LIKE; PLANT-CELL WALLS; FAMILY-MEMBERS; GENE FAMILY;
BIOSYNTHESIS; SUPERFAMILY; PECTIN; POLYSACCHARIDES; MORPHOGENESIS;
EXPRESSION
AB Glycosyltransferases of the Cellulose Synthase Like D (CSLD) subfamily have been reported to be involved in tip growth and stem development in Arabidopsis. The csld2 and csld3 mutants are root hair defective and the csld5 mutant has reduced stem growth. In this study, we produced double and triple knockout mutants of CSLD2, CSLD3, and CSLD5. Unlike the single mutants and the csld2/csld3 double mutant, the csld2/csld5, csld3/csld5, and csld2/ csld3/csld5 mutants were dwarfed and showed severely reduced viability. This demonstrates that the cooperative activities of CSLD2, CSLD3, and CSLD5 are required for normal Arabidopsis development, and that they are involved in important processes besides the specialized role in tip growth. The mutant phenotypes indicate that CSLD2 and CSLD3 have overlapping functions with CSLD5 in early plant development, whereas the CSLD2 and CSLD3 proteins are non-redundant. To determine the biochemical function of CSLD proteins, we used transient expression in tobacco leaves. Microsomes containing heterologously expressed CSLD5 transferred mannose from GDP-mannose onto endogenous acceptors. The same activity was detected when CSLD2 and CSLD3 were co-expressed but not when they were expressed separately. With monosaccharides as exogenous acceptors, microsomal preparations from CSLD5-expressing plants mediated the transfer of mannose from GDP-mannose onto mannose. These results were supported by immunodetection studies that showed reduced levels of a mannan epitope in the cell walls of stem interfascicular fibers and xylem vessels of the csld2/csld3/csld5 mutant.
C1 [Yin, Lan; Verhertbruggen, Yves; Oikawa, Ai; Manisseri, Chithra; Scheller, Henrik Vibe] Joint BioEnergy Inst, Feedstocks Div, Emeryville, CA 94608 USA.
[Yin, Lan; Jensen, Jacob Kruger; Willats, William G. T.] Univ Copenhagen, Fac Life Sci, Dept Plant Biol & Biotechnol, DK-1871 Frederiksberg C, Denmark.
[Verhertbruggen, Yves; Oikawa, Ai; Manisseri, Chithra; Scheller, Henrik Vibe] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Knierim, Bernhard; Prak, Lina; Auer, Manfred] Joint BioEnergy Inst, Div Technol, Emeryville, CA 94608 USA.
[Knierim, Bernhard; Prak, Lina; Auer, Manfred] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Knox, J. Paul] Univ Leeds, Ctr Plant Sci, Fac Biol Sci, Leeds LS2 9JT, W Yorkshire, England.
[Scheller, Henrik Vibe] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA.
RP Scheller, HV (reprint author), Joint BioEnergy Inst, Feedstocks Div, 5885 Hollis St, Emeryville, CA 94608 USA.
EM hscheller@lbl.gov
RI Knox, Paul/H-4577-2012; Scheller, Henrik/A-8106-2008;
OI Knox, Paul/0000-0002-9231-6891; Scheller, Henrik/0000-0002-6702-3560;
Verhertbruggen, Yves/0000-0003-4114-5428; Willats,
William/0000-0003-2064-4025
FU Office of Science, Office of Biological and Environmental Research, of
the US Department of Energy [DE-AC02-05CH11231]; Danish Natural Science
Research Council [272-06-0403]; Danish Food Industry Agency
[3304-FVFP-060697-03]
FX This work conducted at the Joint BioEnergy Institute was supported by
the Office of Science, Office of Biological and Environmental Research,
of the US Department of Energy (Contract No. DE-AC02-05CH11231) and was
further supported by the Danish Natural Science Research Council (grant
number 272-06-0403) and by the Danish Food Industry Agency (grant number
3304-FVFP-060697-03).
NR 44
TC 36
Z9 36
U1 0
U2 15
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 1674-2052
J9 MOL PLANT
JI Mol. Plant.
PD NOV
PY 2011
VL 4
IS 6
BP 1024
EP 1037
DI 10.1093/mp/ssr026
PG 14
WC Biochemistry & Molecular Biology; Plant Sciences
SC Biochemistry & Molecular Biology; Plant Sciences
GA 852SF
UT WOS:000297377100008
PM 21471331
ER
PT J
AU Olson, BJ
Larsson, J
Lele, SK
Cook, AW
AF Olson, Britton J.
Larsson, Johan
Lele, Sanjiva K.
Cook, Andrew W.
TI Nonlinear effects in the combined Rayleigh-Taylor/Kelvin-Helmholtz
instability
SO PHYSICS OF FLUIDS
LA English
DT Article
ID TAYLOR INSTABILITY; SHEAR; FLUID
AB The combined Rayleigh-Taylor/Kelvin-Helmholtz (RT/KH) instability is studied in the early nonlinear regime. Specifically, the effect of adding shear to a gravitationally unstable configuration is investigated. While linear stability theory predicts that any amount of shear would increase the growth rate beyond the Rayleigh-Taylor value, numerical (large eddy) simulations show a more complex and non-monotonic behavior where small amounts of shear in fact decrease the growth rate. A velocity scale for the combined instability is proposed from linear stability arguments and is shown to effectively collapse the growth rates for different configurations. The specific amount of shear that minimizes the peak growth rate is identified and the physical origins of this non-monotonic behavior are investigated. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3660723]
C1 [Olson, Britton J.; Lele, Sanjiva K.] Stanford Univ, Dept Aeronaut & Astronaut, Stanford, CA 94305 USA.
[Larsson, Johan] Stanford Univ, Ctr Turbulence Res, Stanford, CA 94305 USA.
[Cook, Andrew W.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Olson, BJ (reprint author), Stanford Univ, Dept Aeronaut & Astronaut, Stanford, CA 94305 USA.
EM bolson@stanford.edu
RI Larsson, Johan/B-9543-2017
OI Larsson, Johan/0000-0001-8387-1933
FU DOE Scientific Discovery; DOE Computational Science Graduate Fellowship
(CSGF); LLNL HPC Center; U.S. Department of Energy by Lawrence Livermore
National Laboratory [DE-AC52-07NA27344]
FX This work has been supported by the DOE Scientific Discovery through
Advanced Computing (SciDAC) program and the DOE Computational Science
Graduate Fellowship (CSGF) with computational support from the DOE NERSC
and ALCF facilities (through the ERCAP and INCITE programs,
respectively) and through the LLNL HPC Center. We are grateful to Dr.
Bill Cabot for his help in writing the Miranda code. This work was also
performed under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344.
NR 13
TC 4
Z9 4
U1 1
U2 20
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-6631
J9 PHYS FLUIDS
JI Phys. Fluids
PD NOV
PY 2011
VL 23
IS 11
AR 114107
DI 10.1063/1.3660723
PG 10
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 860HK
UT WOS:000297939200026
ER
PT J
AU Voropayev, SI
Sanchez, X
Nath, C
Webb, S
Fernando, HJS
AF Voropayev, S. I.
Sanchez, X.
Nath, C.
Webb, S.
Fernando, H. J. S.
TI Evolution of a confined turbulent jet in a long cylindrical cavity:
Homogeneous fluids
SO PHYSICS OF FLUIDS
LA English
DT Article
ID RECTANGULAR CAVITY; LIQUID; CONDENSATION; OSCILLATIONS; VAPOR; FLOW
AB The flow induced in a long cylinder by an axially discharging round turbulent jet was investigated experimentally with applications to crude oil storage in the U. S. strategic petroleum reserves (SPR). It was found that the flow does not reach a true steady state, but vacillates periodically. Digital video recordings and particle image velocimetry were used to map the flow structures and velocity/vorticity fields, from which the frequency of jet switching, jet stopping distance, mean flow, turbulence characteristics, and the influence of end-wall boundary conditions were inferred. The results were parameterized using the characteristic length D and velocity J(1/2)/D scales based on the jet kinematic momentum flux J and cylinder width D. The scaling laws so developed could be used to extrapolate laboratory observations to SPR flows. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3662442]
C1 [Voropayev, S. I.; Sanchez, X.; Nath, C.; Fernando, H. J. S.] Univ Notre Dame, Dept Civil Engn & Geol Sci, Environm Fluid Dynam Labs, Notre Dame, IN 46556 USA.
[Voropayev, S. I.] Russian Acad Sci, PP Shirshov Oceanol Inst, Moscow 117851, Russia.
[Sanchez, X.] Univ Girona, Dept Phys, Girona 17071, Catalonia, Spain.
[Webb, S.] Sandia Natl Labs, Geotechnol & Engn Dept, Albuquerque, NM 87185 USA.
[Fernando, H. J. S.] Univ Notre Dame, Dept Aerosp & Mech Engn, Notre Dame, IN 46556 USA.
RP Voropayev, SI (reprint author), Univ Notre Dame, Dept Civil Engn & Geol Sci, Environm Fluid Dynam Labs, Notre Dame, IN 46556 USA.
EM s.voropayev@nd.edu
RI Sanchez , Xavier/B-6968-2009
OI Sanchez , Xavier/0000-0002-3069-4942
FU Sandia National Laboratories [DE-AC04-94AL85000]
FX This work was supported by the Sandia National Laboratories, which is
operated by Lockheed Martin Corporation for the United States Department
of Energy's National Nuclear Security Administration under Contract No.
DE-AC04-94AL85000.
NR 20
TC 8
Z9 10
U1 0
U2 11
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-6631
J9 PHYS FLUIDS
JI Phys. Fluids
PD NOV
PY 2011
VL 23
IS 11
AR 115106
DI 10.1063/1.3662442
PG 11
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 860HK
UT WOS:000297939200033
ER
PT J
AU Liska, R
Shashkov, M
Wendroff, B
AF Liska, Richard
Shashkov, Mikhail
Wendroff, Burton
TI THE EARLY INFLUENCE OF PETER LAX ON COMPUTATIONAL HYDRODYNAMICS AND AN
APPLICATION OF LAX-FRIEDRICHS AND LAX-WENDROFF ON TRIANGULAR GRIDS IN
LAGRANGIAN COORDINATES
SO ACTA MATHEMATICA SCIENTIA
LA English
DT Article
DE Lax-Friedrichs; Lax-Wendroff; conservation laws; Lagrangian coordinates;
triangular grid
ID CONSERVATION-LAWS; SCHEMES
AB We give a brief discussion of some of the contributions of Peter Lax to Computational Fluid Dynamics. These include the Lax-Friedrichs and Lax-Wendroff numerical schemes. We also mention his collaboration in the 1983 HLL Riemann solver. We develop two-dimensional Lax-Friedrichs and Lax-Wendroff schemes for the Lagrangian form of the Euler equations on triangular grids. We apply a composite scheme that uses a Lax-Friedrichs time step as a dissipative filter after several Lax-Wendroff time steps. Numerical results for Noh's infinite strength shock problem, the Sedov blast wave problem, and the Saltzman piston problem are presented.
C1 [Liska, Richard] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague 11519 1, Czech Republic.
[Shashkov, Mikhail] Los Alamos Natl Lab, Grp XCP 4, Los Alamos, NM 87545 USA.
[Wendroff, Burton] Los Alamos Natl Lab, Grp T5, Los Alamos, NM 87545 USA.
RP Liska, R (reprint author), Czech Tech Univ, Fac Nucl Sci & Phys Engn, Brehova 7, Prague 11519 1, Czech Republic.
EM liska@siduri.fifi.cvut.cz; shashkov@lanl.gov; bbw@lanl.gov
RI Liska, Richard/C-3142-2009
OI Liska, Richard/0000-0002-6149-0440
FU National Nuclear Security Administration of the US Department of Energy
at Los Alamos National Laboratory [DE-AC52-06NA25396]; Czech Science
Foundation [P205/10/0814]; Czech Ministry of Education [MSM 6840770022,
LC528]; US Department of Energy Office of Science Advanced Scientific
Computing Research (ASCR); US Department of Energy National Nuclear
Security Administration
FX This work was performed under the auspices of the National Nuclear
Security Administration of the US Department of Energy at Los Alamos
National Laboratory under Contract No. DE-AC52-06NA25396. The first
author has been supported in part by the Czech Science Foundation Grant
P205/10/0814 and by the Czech Ministry of Education grants MSM
6840770022 and LC528.; The authors gratefully acknowledge the partial
support of the US Department of Energy Office of Science Advanced
Scientific Computing Research (ASCR) Program in Applied Mathematics
Research and the partial support of the US Department of Energy National
Nuclear Security Administration Advanced Simulation and Computing (ASC)
Program.
NR 17
TC 1
Z9 1
U1 0
U2 2
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0252-9602
J9 ACTA MATH SCI
JI Acta Math. Sci.
PD NOV
PY 2011
VL 31
IS 6
SI SI
BP 2195
EP 2202
PG 8
WC Mathematics
SC Mathematics
GA 856BH
UT WOS:000297610800009
ER
PT J
AU Liang, C
Cheng, G
Wixon, DL
Balser, TC
AF Liang, Chao
Cheng, Guang
Wixon, Devin L.
Balser, Teri C.
TI An Absorbing Markov Chain approach to understanding the microbial role
in soil carbon stabilization
SO BIOGEOCHEMISTRY
LA English
DT Article
DE Markov Chain; Microbial biomass; Microbial necromass; Carbon
stabilization
ID ORGANIC-MATTER; BACTERIAL BIOMASS; DECOMPOSITION; FATE; MINERALIZATION;
MECHANISMS; FOREST; ACIDS
AB The number of studies focused on the transformation and sequestration of soil organic carbon (C) has dramatically increased in recent years due to growing interest in understanding the global C cycle. While it is readily accepted that terrestrial C dynamics are heavily influenced by the catabolic and anabolic activities of microorganisms, the incorporation of microbial biomass components into stable soil C pools (via microbial living cells and necromass) has received less attention. Nevertheless, microbial-derived C inputs to soils are now increasingly recognized as playing a far greater role in stabilization of soil organic matter than previously believed. Our understanding, however, is limited by the difficulties associated with studying microbial turnover in soils. Here, we describe the use of an Absorbing Markov Chain (AMC) to model the dynamics of soil C transformations among three microbial states: living microbial biomass, microbial necromass, and C removed from living and dead microbial sources. We find that AMC provides a powerful quantitative approach that allows prediction of how C will be distributed among these three states, and how long it will take for the entire amount of initial C to pass through the biomass and necromass pools and be moved into atmosphere. Further, assuming constant C inputs to the model, we can predict how C is eventually distributed, along with how much C sequestrated in soil is microbial-derived. Our work represents a first step in attempting to quantify the flow of C through microbial pathways, and has the potential to increase our understanding of the microbial role in soil C dynamics.
C1 [Liang, Chao] Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA.
[Liang, Chao; Balser, Teri C.] Univ Wisconsin, Dept Soil Sci, Madison, WI 53706 USA.
[Cheng, Guang] Purdue Univ, Dept Stat, W Lafayette, IN 47907 USA.
[Wixon, Devin L.] Univ Wisconsin, Dept Bot, Madison, WI 53706 USA.
RP Liang, C (reprint author), Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA.
EM chaoliang@wisc.edu
RI Liang, Chao/A-5929-2009
FU DOE Great Lakes Bioenergy Research Center (DOE BER Office of Science)
[DE-FC02-07ER64494]; USDA-CSREES; NSF-DMS [0906497]
FX This work was financially supported by the DOE Great Lakes Bioenergy
Research Center (DOE BER Office of Science DE-FC02-07ER64494),
USDA-CSREES and NSF-DMS 0906497. We would like to thank Dr. R. Jackson
for his help with the proposed idea, Drs. C. Xu and J. Zhu for the
discussions on the earlier stage of this study. We would also like to
thank the editor and two anonymous reviewers. The manuscript is much
improved because of their inputs.
NR 25
TC 52
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U1 7
U2 69
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0168-2563
J9 BIOGEOCHEMISTRY
JI Biogeochemistry
PD NOV
PY 2011
VL 106
IS 3
BP 303
EP 309
DI 10.1007/s10533-010-9525-3
PG 7
WC Environmental Sciences; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 852LU
UT WOS:000297360300001
ER
PT J
AU Liao, HH
Zhang, XZ
Rollin, JA
Zhang, YHP
AF Liao, Hehuan
Zhang, Xiao-Zhou
Rollin, Joseph A.
Zhang, Y. -H. Percival
TI A minimal set of bacterial cellulases for consolidated bioprocessing of
lignocellulose
SO BIOTECHNOLOGY JOURNAL
LA English
DT Article
DE Biofuels; Biomass; Cellulase engineering; Cellulose hydrolysis;
Consolidated bioprocessing
ID ENZYMATIC-HYDROLYSIS; CLOSTRIDIUM-THERMOCELLUM; SUPRAMOLECULAR
STRUCTURE; HETEROLOGOUS EXPRESSION; CELLULOSE ACCESSIBILITY;
BACILLUS-SUBTILIS; BIOMASS; ACID; FRACTIONATION; BIOFUELS
AB Cost-effective release of fermentable sugars from non-food biomass through biomass pretreatment/enzymatic hydrolysis is still the largest obstacle to second-generation biorefineries. Therefore, the hydrolysis performance of 21 bacterial cellulase mixtures containing the glycoside hydrolase family 5 Bacillus subtilis endoglucanase (BsCel5), family 9 Clostridium phytofermentans processive endoglucanase (CpCel9), and family 48 C. phytofermentans cellobiohydrolase (CpCel48) was studied on partially ordered low-accessibility microcrystalline cellulose (Avicel) and disordered high-accessibility regenerated amorphous cellulose (RAC). Faster hydrolysis rates and higher digestibilities were obtained on RAC than on Avicel. The optimal ratios for maximum cellulose digestibility were dynamic for Avicel but nearly fixed for RAC. Processive endoglucanase CpCel9 was the most important for high cellulose digestibility regardless of substrate type. This study provides important information for the construction of a minimal set of bacterial cellulases for the consolidated bioprocessing bacteria, such as Bacillus subtilis, for converting lignocellulose to bio-commodities in a single step.
C1 [Liao, Hehuan; Zhang, Xiao-Zhou; Rollin, Joseph A.; Zhang, Y. -H. Percival] Virginia Tech, Dept Biol Syst Engn, Blacksburg, VA 24061 USA.
[Zhang, Y. -H. Percival] Virginia Tech, Inst Crit Technol & Appl Sci ICTAS, Blacksburg, VA 24061 USA.
[Zhang, Y. -H. Percival] DOE BioEnergy Sci Ctr BESC, Oak Ridge, TN USA.
RP Zhang, YHP (reprint author), Virginia Tech, Dept Biol Syst Engn, 210-A Seitz Hall, Blacksburg, VA 24061 USA.
EM ypzhang@vt.edu
FU DOE BioEnergy Science Center (BESC); Office of Biological and
Environmental Research in the DOE Office of Science; College of
Agriculture and Life Sciences Biodesign and Bioprocessing Research
Center at Virginia Tech
FX This work was supported mainly by the DOE BioEnergy Science Center
(BESC). BESC is a US Department of Energy Bioenergy Research Center
supported by the Office of Biological and Environmental Research in the
DOE Office of Science. This work was also partially supported by the
College of Agriculture and Life Sciences Biodesign and Bioprocessing
Research Center at Virginia Tech. H. L. was partially supported by the
Chinese Scholarship Council. We were deeply indebted to Dr. Mikhail
Rabinovich for his invaluable suggestions and inputs.
NR 48
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U1 1
U2 21
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1860-6768
J9 BIOTECHNOL J
JI Biotechnol. J.
PD NOV
PY 2011
VL 6
IS 11
SI SI
BP 1409
EP 1418
DI 10.1002/biot.201100157
PG 10
WC Biochemical Research Methods; Biotechnology & Applied Microbiology
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology
GA 855JH
UT WOS:000297559600013
PM 21751395
ER
PT J
AU Congdon, JD
Kinney, OM
Nagle, RD
AF Congdon, J. D.
Kinney, O. M.
Nagle, R. D.
TI Spatial ecology and core-area protection of Blanding's Turtle (Emydoidea
blandingii)
SO CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE
LA English
DT Article
ID FRESH-WATER TURTLE; TERRESTRIAL BUFFER ZONES; DYNAMIC WETLAND SYSTEM;
AQUATIC TURTLES; CHRYSEMYS-PICTA; HABITAT USE; CHELYDRA-SERPENTINA;
TRACHEMYS-SCRIPTA; CENTRAL WISCONSIN; NESTING ECOLOGY
AB We documented sizes of terrestrial protection zones around wetlands that are necessary to protect all of the core area of Blanding's Turtles (Emydoidea blandingii (Holbrook, 1838)) on the Edwin S. George Reserve (ESGR) in southeastern Michigan. Data collected over three decades indicated that 39% of the 83 females and 50% of the 60 males maintained the same residence wetland for more than 20 years, and 33% of the 182 nonresident females used nesting areas on the ESGR for more than 20 years. Approximately 20% of resident males and females were captured in 21 temporary wetlands on the ESGR. Nesting areas were located from 100 to 2000 m from residence wetlands, and some of 45 females (18%) used up to six different nesting areas, some separated by >1000 m. Terrestrial protection zones 300 and 450 m around all wetlands (residence and temporary) protect 90% and 100% of nests, respectively. Terrestrial protection zones of 300, 1000, and 2000 m around residence wetlands only are required to protect 14%, 87%, and 100% of adults, respectively. A protection zone that encompasses the activities of most or all Blanding's Turtles has a high probability of including the core areas of most other semiaquatic organisms.
C1 [Congdon, J. D.; Kinney, O. M.; Nagle, R. D.] Savannah River Ecol Lab, Aiken, SC 29802 USA.
[Congdon, J. D.] Bar Boot Ranch, Douglas, AZ 85608 USA.
[Kinney, O. M.] Darlington Sch, Rome, GA 30161 USA.
[Nagle, R. D.] Juniata Coll, Huntingdon, PA 16652 USA.
RP Congdon, JD (reprint author), Savannah River Ecol Lab, Aiken, SC 29802 USA.
EM congdon@vtc.net
FU National Science Foundation (NSF) [DEB-74-070631, DEB-79-06301,
BSR-84-00861, BSR-90-19771]; J. Congdon and N. Dickson; Office of
Biological and Environmental Research, US Department of Energy
[DE-FC09-96SR18546]; Savannah River Ecology Laboratory
FX We appreciate the support of the University of Michigan Museum of
Zoology and Ecology and Evolutionary Biology Department for
administering and maintaining the ESGR as a world-class research area.
M. Burkman and R. Estes spent many hours entering and editing the data
files. The following people made notable contributions to the study: H.
and S. Avery, S. Connelly, R. Fama, R. Fischer, J. Hanes, M. Hinz, M.
Hutcheson, T. Novak, P. Orleans, T. Quinter, N. Rachuck, W. Roosenburg,
T. Sajwaj, B. Wiltse, J. Wiltse, D. Wiltse, and R. van Loben Sels.
Animals were collected under a scientific permit issued by the Michigan
Department of Natural Resources and cared for in accordance with
guidelines of the University of Michigan Animal Care and Use Committee.
Research funding was provided over the first half of the study by
National Science Foundation (NSF) Grants DEB-74-070631, DEB-79-06301,
BSR-84-00861, and BSR-90-19771, and the last 19 years were funded by J.
Congdon and N. Dickson. Research and manuscript preparation were aided
by the Office of Biological and Environmental Research, US Department of
Energy through Financial Assistant Award No. DE-FC09-96SR18546 to the
University of Georgia Research Foundation, and the Savannah River
Ecology Laboratory. Helpful comments on earlier drafts of the paper were
provided by B. Brecke, J. Ennen, N. Dickson, J. Lovich, J. McGuire, R.
Semlitsch, and L. Vitt.
NR 65
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Z9 11
U1 3
U2 195
PU CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
PI OTTAWA
PA 1200 MONTREAL ROAD, BUILDING M-55, OTTAWA, ON K1A 0R6, CANADA
SN 0008-4301
J9 CAN J ZOOL
JI Can. J. Zool.-Rev. Can. Zool.
PD NOV
PY 2011
VL 89
IS 11
BP 1098
EP 1106
DI 10.1139/Z11-091
PG 9
WC Zoology
SC Zoology
GA 855XK
UT WOS:000297599400011
ER
PT J
AU McGuire, JM
Congdon, JD
Scribner, KT
Capps, JD
AF McGuire, J. M.
Congdon, J. D.
Scribner, K. T.
Capps, J. D.
TI Variation in female reproductive quality and reproductive success of
male Midland Painted Turtles (Chrysemys picta marginata)
SO CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE
LA English
DT Article
ID RIDLEY SEA-TURTLE; SPERM STORAGE; MULTIPLE PATERNITY; SEXUAL SELECTION;
HATCHING SUCCESS; CHELONIA-MYDAS; EMYDOIDEA-BLANDINGII;
RESOURCE-ALLOCATION; MICROSATELLITE LOCI; MOTTLED SCULPIN
AB Although mate number is perceived to be the primary factor affecting male reproductive success in polygynous systems, differences in female reproductive qualities may also influence variation in male reproductive success. We combined 32 years of data on variation in reproductive qualities (clutch size and clutch frequency) of female Midland Painted Turtles (Chrysemys picta marginata Agassiz, 1857) with genetic data on patterns of repeated paternity (i.e., stored sperm use) and multiple paternity to examine the potential influence on male reproductive success. Over 24 years (1983-2006), the number of reproductive females each year averaged 84 (minimum-maximum = 62-106) and, on average, 23% (minimum-maximum = 6%-40%) produced two clutches (intraseasonally). Among females with reproductive histories spanning 5-24 years (N = 167), 26% of individuals produced only one clutch annually, whereas 74% produced two clutches within a season. Among just intraseasonally iteroparous females, second-clutch production varied from 7% to 50%. Repeated paternity was observed in 97.5% of 40 paired clutches and 44% of 9 among-year comparisons of clutches from consecutive years. The frequent use of stored sperm to fertilize sequential clutches within and potentially among years can substantially increase a male's reproductive success, particularly if males can base mating decisions on phenotypic characteristics correlated with female quality.
C1 [McGuire, J. M.; Scribner, K. T.] Michigan State Univ, Dept Zool, E Lansing, MI 48824 USA.
[Congdon, J. D.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA.
[Congdon, J. D.] Bar Boot Ranch, Douglas, AZ 85608 USA.
[Scribner, K. T.] Michigan State Univ, Dept Fisheries & Wildlife, E Lansing, MI 48824 USA.
[Capps, J. D.] Allterra Environm Inc, Santa Cruz, CA 95060 USA.
RP McGuire, JM (reprint author), Michigan State Univ, Dept Zool, 203 Nat Sci Bldg, E Lansing, MI 48824 USA.
EM mcguir35@msu.edu
OI McGuire, Jeanette/0000-0002-4706-447X
FU National Science Foundation (NSF) [DEB-74-070631, DEB-79-06301,
BSR-90-19771]; N. Dickson, J. Congdon; Fabbro family; Office of
Biological and Environmental Research, US Department of Energy
[DE-FC09-96SR18546]; Savannah River Ecology Laboratory; University of
Michigan Museum of Zoology and Ecology and Evolutionary Biology
Department, Michigan State University Department of Fisheries and
Wildlife; Michigan Agricultural Experimental Station
FX We acknowledge the Museum of Zoology and Ecology and Evolutionary
Biology Department at the University of Michigan for administering and
maintaining the Edwin S. George Reserve as a world-class research area.
We thank all long-term field crews (R. Nagle, O. Kinney, R. van Loben
Sels, T. Quinter, and H. Avery) for improvements to all aspects of the
study. Special thanks go to C. Fabbro for her company, conversations,
and extensive emergency help processing hatchlings. Life-history
research was partially funded by National Science Foundation (NSF)
grants DEB-74-070631, DEB-79-06301, and BSR-90-19771, additional support
was provided by N. Dickson, J. Congdon, the Fabbro family, and M.
Tinkle. Members of the Scribner laboratory, especially S. Libants and K.
Bennett assisted in the laboratory portion of the study. Research and
manuscript preparation were aided by the Office of Biological and
Environmental Research, US Department of Energy, through Financial
Assistant Award No. DE-FC09-96SR18546 to the University of Georgia
Research Foundation, the Savannah River Ecology Laboratory, the
University of Michigan Museum of Zoology and Ecology and Evolutionary
Biology Department, Michigan State University Department of Fisheries
and Wildlife, and the Michigan Agricultural Experimental Station.
Improvements of earlier drafts of the manuscript are the results of
comments from N. Dickson, K. Holekamp, R. van Loben Sels, D. Schemske,
A. McAdam, members of the Scribner laboratory, and from reviews and
comments from F. Janzen and anonymous reviewers.
NR 75
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U1 1
U2 16
PU CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
PI OTTAWA
PA 1200 MONTREAL ROAD, BUILDING M-55, OTTAWA, ON K1A 0R6, CANADA
SN 0008-4301
J9 CAN J ZOOL
JI Can. J. Zool.-Rev. Can. Zool.
PD NOV
PY 2011
VL 89
IS 11
BP 1136
EP 1145
DI 10.1139/Z11-089
PG 10
WC Zoology
SC Zoology
GA 855XK
UT WOS:000297599400015
ER
PT J
AU Leoni, L
Dhyani, A
La Riviere, P
Vogt, S
Lai, B
Roman, BB
AF Leoni, Lara
Dhyani, Anita
La Riviere, Patrick
Vogt, Stefan
Lai, Barry
Roman, B. B.
TI ss-Cell subcellular localization of glucose-stimulated Mn uptake by
X-ray fluorescence microscopy: implications for pancreatic MRI
SO CONTRAST MEDIA & MOLECULAR IMAGING
LA English
DT Article
DE manganese; subcellular localization; pancreatic ss-cells function; X-ray
fluorescence microscopy; MRI
ID RESONANCE-IMAGING MEMRI; MANGANESE-ENHANCED MRI; T-1 RELAXATION-TIMES;
BETA-CELLS; IN-VIVO; PLASMA-MEMBRANE; CONTRAST AGENTS; BRAIN; MODEL;
ACTIVATION
AB Manganese (Mn) is a calcium (Ca) analog that has long been used as a magnetic resonance imaging (MRI) contrast agent for investigating cardiac tissue functionality, for brain mapping and for neuronal tract tracing studies. Recently, we have extended its use to investigate pancreatic beta-cells and showed that, in the presence of MnCl2, glucose-activated pancreatic islets yield significant signal enhancement in T1-weigheted MR images. In this study, we exploited for the first time the unique capabilities of X-ray fluorescence microscopy (XFM) to both visualize and quantify the metal in pancreatic beta-cells at cellular and subcellular levels. MIN-6 insulinoma cells grown in standard tissue culture conditions had only a trace amount of Mn, 1.14 +/- 0.03 x 10-11 mu g/mu m2, homogenously distributed across the cell. Exposure to 2?m m glucose and 50 mu m MnCl2 for 20min resulted in nonglucose-dependent Mn uptake and the overall cell concentration increased to 8.99 +/- 2.69 x 10-11 mu g/mu m2. When cells were activated by incubation in 16m m glucose in the presence of 50 mu m MnCl2, a significant increase in cytoplasmic Mn was measured, reaching 2.57 +/- 1.34 x 10-10 mu g/mu m2. A further rise in intracellular concentration was measured following KCl-induced depolarization, with concentrations totaling 1.25 +/- 0.33 x 10-9 and 4.02 +/- 0.71 x 10-10 mu g/mu m2 in the cytoplasm and nuclei, respectively. In both activated conditions Mn was prevalent in the cytoplasm and localized primarily in a perinuclear region, possibly corresponding to the Golgi apparatus and involving the secretory pathway. These data are consistent with our previous MRI findings, confirming that Mn can be used as a functional imaging reporter of pancreatic beta-cell activation and also provide a basis for understanding how subcellular localization of Mn will impact MRI contrast. Copyright (C) 2011 John Wiley & Sons, Ltd.
C1 [Leoni, Lara; Dhyani, Anita; La Riviere, Patrick; Roman, B. B.] Univ Chicago, Dept Radiol, Comm Med Phys, Chicago, IL 60637 USA.
[Vogt, Stefan; Lai, Barry] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
[Roman, B. B.] Univ Chicago, Comm Metab & Nutr, Chicago, IL 60637 USA.
RP Roman, BB (reprint author), MC2026 Univ Chicago, Dept Radiol, 5841 S Maryland Ave, Chicago, IL 60637 USA.
EM broman@uchicago.edu
RI Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013
OI Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513
FU National Institute of Health [R01EB001828]; NIH Beta Cell Biology
Consortium [U01 DK072473]; US Department of Energy, Office of Science,
Office of Basic Energy Sciences [DE-AC02-06CH11357]
FX National Institute of Health grant R01EB001828 and NIH Beta Cell Biology
Consortium U01 DK072473 to B. B. R. supported this work. Use of the APS
was supported by the US Department of Energy, Office of Science, Office
of Basic Energy Sciences, under contract no. DE-AC02-06CH11357. We would
like to thank Dr Lydia Finney at the Advance Photon Source, Argonne
National Laboratory, for technical assistance with sample preparation
and imaging.
NR 53
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Z9 8
U1 1
U2 8
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1555-4309
J9 CONTRAST MEDIA MOL I
JI Contrast Media Mol. Imaging
PD NOV-DEC
PY 2011
VL 6
IS 6
BP 474
EP 481
DI 10.1002/cmmi.447
PG 8
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 857CR
UT WOS:000297692700007
PM 22144025
ER
PT J
AU Boyd, S
Carr, R
AF Boyd, Sylvia
Carr, Robert
TI Finding low cost TSP and 2-matching solutions using certain half-integer
subtour vertices
SO DISCRETE OPTIMIZATION
LA English
DT Article
DE Traveling salesman problem; 2-matching; Approximation algorithm
ID TRAVELING SALESMAN PROBLEMS; RELAXATION; RATIO
AB Consider the traveling salesman problem (TSP) defined on the complete graph, where the edge costs satisfy the triangle inequality. Let TOUR denote the optimal solution value for the TSP. Two well-known relaxations of the TSP are the subtour elimination problem and the 2-matching problem. If we let SUBT and 2M represent the optimal solution values for these two relaxations, then it has been conjectured that TOUR/SUBT <= 4/3, and that 2M/SUBT <= 10/9.
In this paper, we exploit the structure of certain 1/2-integer solutions for the subtour elimination problem in order to obtain low cost TSP and 2-matching solutions. In particular, we show that for cost functions for which the optimal subtour elimination solution found falls into our classes, the above two conjectures are true. Our proofs are constructive and could be implemented in polynomial time, and thus, for such cost functions, provide a 4/3 (or better) approximation algorithm for the TSP. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Boyd, Sylvia] Univ Ottawa, SITE, Ottawa, ON K1N 6N5, Canada.
[Carr, Robert] Sandia Labs, Albuquerque, NM 87185 USA.
RP Boyd, S (reprint author), Univ Ottawa, SITE, Ottawa, ON K1N 6N5, Canada.
EM sylvia@site.uottawa.ca; rdcarr@sandia.gov
FU Natural Sciences and Engineering Research Council of Canada; United
States Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX This research was partially supported by grants from the Natural
Sciences and Engineering Research Council of Canada.; 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 21
TC 4
Z9 4
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1572-5286
J9 DISCRETE OPTIM
JI Discret. Optim.
PD NOV
PY 2011
VL 8
IS 4
BP 525
EP 539
DI 10.1016/j.disopt.2011.05.002
PG 15
WC Operations Research & Management Science; Mathematics, Applied
SC Operations Research & Management Science; Mathematics
GA 856CE
UT WOS:000297613500002
ER
PT J
AU Palmer, J
Rice, M
AF Palmer, Joseph
Rice, Michael
TI Low-Complexity Frequency Estimation Using Multiple Disjoint Pilot Blocks
in Burst-Mode Communications
SO IEEE TRANSACTIONS ON COMMUNICATIONS
LA English
DT Article
DE Estimation theory; frequency estimation; synchronization
ID SINGLE-FREQUENCY; DICHOTOMOUS SEARCH; FADING CHANNELS; CARRIER-PHASE;
TRANSMISSIONS; SYNCHRONIZATION; ALGORITHMS; SYMBOLS; BOUNDS
AB Two low-complexity data-aided frequency estimators, suitable for use in burst-mode communications, are described and analyzed. The estimators are based on pilot symbols organized into disjoint blocks embedded in the burst. The first estimator is a generalization of the phase increment frequency estimation technique and the second estimator is a generalization of the autocorrelation frequency estimation technique. The generalizations are needed to account for the spacings between the pilot blocks. It is shown that the frequency estimators exhibit good accuracy while maintaining useful operating ranges.
C1 [Palmer, Joseph; Rice, Michael] Brigham Young Univ, Dept Elect & Comp Engn, Provo, UT 84602 USA.
RP Palmer, J (reprint author), Los Alamos Natl Labs, POB 1663, Los Alamos, NM 87545 USA.
EM joseph.m.palmer@gmail.com; mdr@byu.edu
NR 27
TC 4
Z9 7
U1 1
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0090-6778
J9 IEEE T COMMUN
JI IEEE Trans. Commun.
PD NOV
PY 2011
VL 59
IS 11
BP 3135
EP 3145
DI 10.1109/TCOMM.2011.091411.080123
PG 11
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 855TX
UT WOS:000297589000025
ER
PT J
AU Perkins, MP
Ong, MM
Speer, RD
Brown, CG
AF Perkins, Michael P.
Ong, Mike M.
Speer, Ron D.
Brown, Charles G., Jr.
TI Analysis of a Small Loop Antenna With Inductive Coupling to Nearby Loops
SO IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY
LA English
DT Article
DE Antenna array mutual coupling; antenna measurements; electroexplosive
devices; lightning; modeling
ID COMPUTATIONAL ELECTROMAGNETICS CEM; SELECTIVE VALIDATION FSV; FIELD;
CALIBRATION; GENERATION; VOLTAGES; STRIKES; DESIGN; CELLS
AB This paper analyzes the inductive coupling that occurs when a loop antenna is near other conductive objects that form complete loops and are excited by incident low-frequency magnetic fields. The currents developed on the closed loops from the time changing magnetic fields generate their own magnetic fields that alter the voltage received by nearby open loop antennas. We will demonstrate how inductance theory can be used to model the system of loops. Using this theory, time domain circuit models are developed to find the open circuit voltage of a loop near one closed loop and for the open circuit voltage of one loop near two closed loops. We will show that the model is in good agreement with measurements that have been made in a TEM cell. One important application of this work is for electroexplosive device safety. It is necessary to ensure that if lightning strikes a facility that the electromagnetic fields generated inside do not have strong enough coupling to a detonator cable to cause initiation of explosives. We will show how the model can be used to analyze magnetic field coupling into a detonator cable attached to explosives in one typical type of work stand.
C1 [Perkins, Michael P.; Ong, Mike M.; Speer, Ron D.; Brown, Charles G., Jr.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Perkins, MP (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM perkins22@llnl.gov; ong1@llnl.gov; speer3@llnl.gov; brown207@llnl.gov
FU U. S. Department of Energy [DE-AC52-07NA27344]
FX Manuscript received October 5, 2010; revised February 27, 2011; accepted
March 29, 2011. Date of publication May 19, 2011; date of current
version November 18, 2011. This work was performed under the auspices of
the U. S. Department of Energy by Lawrence Livermore National Laboratory
under Contract DE-AC52-07NA27344.
NR 25
TC 1
Z9 1
U1 2
U2 4
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9375
J9 IEEE T ELECTROMAGN C
JI IEEE Trans. Electromagn. Compat.
PD NOV
PY 2011
VL 53
IS 4
BP 900
EP 908
DI 10.1109/TEMC.2011.2143718
PG 9
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 852GB
UT WOS:000297342900006
ER
PT J
AU VanEvery, K
Krane, MJM
Trice, RW
Porter, W
Wang, H
Besser, M
Sordelet, D
Ilavsky, J
Almer, J
AF VanEvery, Kent
Krane, Matthew John M.
Trice, Rodney W.
Porter, Wallace
Wang, Hsin
Besser, Matthew
Sordelet, Dan
Ilavsky, Jan
Almer, Jonathan
TI In-Flight Alloying of Nanocrystalline Yttria-Stabilized Zirconia Using
Suspension Spray to Produce Ultra-Low Thermal Conductivity Thermal
Barriers
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID EB-PVD TBCS; DOPED ZIRCONIA; COATINGS; PHASE; EVOLUTION; POROSITY;
DEPOSITS; YSZ
AB Previous researchers have shown that it is possible to combine rare-earth oxides with the standard thermal barrier coating material (4.5 mol% Y(2)O(3)ZrO(2) or YSZ) to form ultra-low thermal conductivity coatings using a standard powder manufacturing route. A similar approach to making low thermal conductivity coatings by adding rare-earth oxides is discussed presently, but a different manufacturing route was used. This route involved dissolving hydrated ytterbium and neodymium nitrates into a suspension of 80 nm diameter 4.5 mol% YSZ powder and ethanol. Suspension plasma spray was then used to create coatings in which the YSZ powders were alloyed with rare-earth elements while the plasma transported the melted powders to the substrate. Mass spectrometry measurements showed a YSZ coating composition, in mol%, of ZrO(2)-4.4 Y(2)O(3)-1.4 Nd(2)O(3)-1.3 Yb(2)O(3). The amount of Yb(3+) and Nd(3+) ions in the final coating was similar to 50% of that added to the starting suspension. Wide-angle X-ray diffraction revealed a cubic ZrO2 phase, consistent with the incorporation of more stabilizer into the zirconia crystal structure. The total porosity in the coatings was similar to 3536%, with a bulk density of 3.94 g/cm(3). Small-angle X-ray scattering measured an apparent void specific surface area of similar to 2.68 m(2)/cm(3) for the alloyed coating and similar to 3.19 m(2)/cm(3) for the baseline coating. Thermal conductivity (kth) of the alloyed coating was similar to 0.8 W/m/K at 800 degrees C, as compared with similar to 1.5 W/m/K at 800 degrees C for the YSZ-only baseline coating. After 50 h at 1200 degrees C, kth increased to similar to 1.1 W/m/K at 800 degrees C for the alloyed samples, with an associated decrease in the apparent void specific surface area to similar to 1.55 m2/cm3.
C1 [VanEvery, Kent; Krane, Matthew John M.; Trice, Rodney W.] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA.
[Porter, Wallace; Wang, Hsin] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Besser, Matthew; Sordelet, Dan] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Ilavsky, Jan; Almer, Jonathan] Argonne Natl Lab, Argonne, IL 60439 USA.
RP VanEvery, K (reprint author), Progress Surface, 4695 Danvers Dr SE, Grand Rapids, MI 49512 USA.
EM rtrice@purdue.edu
RI Ilavsky, Jan/D-4521-2013; Wang, Hsin/A-1942-2013
OI Ilavsky, Jan/0000-0003-1982-8900; Wang, Hsin/0000-0003-2426-9867
FU National Science Foundation [CMMI-0456534]; U.S. Department of Energy by
Iowa State University [DE-AC02-07CH11358]; U.S. Department of Energy,
Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357];
Office of FreedomCAR and Vehicle Technologies; Oak Ridge National
Laboratory; U.S. Department of Energy [DE-AC05-00OR22725]
FX Major portions of this research were funded by the National Science
Foundation via grant CMMI-0456534. This support is gratefully
acknowledged. Ames Laboratory is operated for the U.S. Department of
Energy by Iowa State University under Contract No. DE-AC02-07CH11358.
Use of the Advanced Photon Source at Argonne National Laboratory was
supported by the U.S. Department of Energy, Office of Science, Office of
Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. This
project involved research sponsored by the Assistant Secretary for
Energy Efficiency and Renewable Energy, Office of FreedomCAR and Vehicle
Technologies, as part of the High Temperature Materials Laboratory User
Program, Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for
the U.S. Department of Energy under contract number DE-AC05-00OR22725.
NR 33
TC 4
Z9 5
U1 2
U2 18
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.
PD NOV-DEC
PY 2011
VL 8
IS 6
BP 1382
EP 1392
DI 10.1111/j.1744-7402.2010.02593.x
PG 11
WC Materials Science, Ceramics
SC Materials Science
GA 851DT
UT WOS:000297249300014
ER
PT J
AU Pavan, B
Abhinav, V
AF Pavan, Balaji
Abhinav, Vishnu
TI Special Issue on Programming Models, Software and Tools for High-End
Computing
SO INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS
LA English
DT Editorial Material
C1 [Pavan, Balaji] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
[Abhinav, Vishnu] Pacific NW Natl Lab, Div Math & Comp Sci, Richland, WA 99352 USA.
RP Pavan, B (reprint author), Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
EM balaji@mcs.anl.gov; abhinav.vishnu@pnl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1094-3420
J9 INT J HIGH PERFORM C
JI Int. J. High Perform. Comput. Appl.
PD NOV
PY 2011
VL 25
IS 4
BP 353
EP 354
DI 10.1177/1094342011414549
PG 2
WC Computer Science, Hardware & Architecture; Computer Science,
Interdisciplinary Applications; Computer Science, Theory & Methods
SC Computer Science
GA 856OL
UT WOS:000297652200001
ER
PT J
AU Chen, Y
Zhu, HY
Roth, PC
Jin, H
Sun, XH
AF Chen, Yong
Zhu, Huaiyu
Roth, Philip C.
Jin, Hui
Sun, Xian-He
TI Global-aware and multi-order context-based prefetching for
high-performance processors
SO INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS
LA English
DT Article
DE prefetching; context-based prefetching; prefetching accuracy;
prefetching coverage; processor architectures; memory hierarchy; data
access delay; prefetch degree; prefetch priority; cache pollution;
bandwidth contention; SPEC-CPU2006; CMP$im simulator; PIN; high-end
computing; data intensive computing
AB Data prefetching is widely used in high-end computing systems to accelerate data accesses and to bridge the increasing performance gap between processor and memory. Context-based prefetching has become a primary focus of study in recent years due to its general applicability. However, current context-based prefetchers only adopt the context analysis of a single order, which suffers from low prefetching coverage and thus limits the overall prefetching effectiveness. Also, existing approaches usually consider the context of the address stream from a single instruction but not the context of the address stream from all instructions, which further limits the context-based prefetching effectiveness. In this study, we propose a new context-based prefetcher called the Global-aware and Multi-order Context-based (GMC) prefetcher. The GMC prefetcher uses multi-order, local and global context analysis to increase prefetching coverage while maintaining prefetching accuracy. In extensive simulation testing of the SPEC-CPU2006 benchmarks with an enhanced CMP$im simulator, the proposed GMC prefetcher was shown to outperform existing prefetchers and to reduce the data-access latency effectively. The average Instructions Per Cycle (IPC) improvement of SPEC CINT2006 and CFP2006 benchmarks with GMC prefetching was over 55% and 44% respectively.
C1 [Chen, Yong] Texas Tech Univ, Dept Comp Sci, Lubbock, TX 79409 USA.
[Zhu, Huaiyu] Univ Illinois, Dept Comp Sci, Urbana, IL USA.
[Zhu, Huaiyu] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL USA.
[Roth, Philip C.] Oak Ridge Natl Lab, Comp Sci & Math Div, Future Technol Grp, Oak Ridge, TN USA.
[Jin, Hui; Sun, Xian-He] IIT, Dept Comp Sci, Chicago, IL 60616 USA.
[Sun, Xian-He] IIT, Scalable Comp Software Lab, Chicago, IL 60616 USA.
RP Chen, Y (reprint author), Texas Tech Univ, Dept Comp Sci, Box 43104, Lubbock, TX 79409 USA.
EM yong.chen@ttu.edu
RI Jin, Hui/H-2398-2012
FU Office of Advanced Scientific Computing Research, U.S. Department of
Energy; National Science Foundation [CCF-0621435, CCF-0937877];
De-AC05-00OR22725
FX This research is sponsored in part by the Office of Advanced Scientific
Computing Research, U.S. Department of Energy. This research is also
sponsored in part by the National Science Foundation (grant numbers
CCF-0621435 and CCF-0937877).; The work was performed in part at the Oak
Ridge National Laboratory, which is managed by UT-Battelle, LLC under
Contract No. De-AC05-00OR22725. Accordingly, the U.S. Government retains
a non-exclusive, royalty-free license to publish or reproduce the
published form of this contribution, or allow others to do so, for U.S.
Government purposes.
NR 42
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U1 0
U2 2
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1094-3420
EI 1741-2846
J9 INT J HIGH PERFORM C
JI Int. J. High Perform. Comput. Appl.
PD NOV
PY 2011
VL 25
IS 4
BP 355
EP 370
DI 10.1177/1094342010394386
PG 16
WC Computer Science, Hardware & Architecture; Computer Science,
Interdisciplinary Applications; Computer Science, Theory & Methods
SC Computer Science
GA 856OL
UT WOS:000297652200002
ER
PT J
AU Smith, B
Zhang, H
AF Smith, Barry
Zhang, Hong
TI Sparse triangular solves for ILU revisited: data layout crucial to
better performance
SO INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS
LA English
DT Article
DE sparse triangular solve; ILU factorization; matrix-vector product; data
access pattern; data layout
ID PARALLEL IMPLICIT CFD
AB A key to good processor utilization for sparse matrix computations is storing the data in the format that is most conducive to fast access by the memory system. In particular, for sparse matrix triangular solves the traditional compressed sparse matrix format is poor, and minor adjustments to the data structure can increase the processor utilization dramatically. Such adjustments involve storing the L and U factors separately and storing the U rows 'backwards' so that they are accessed in a simple streaming fashion during the triangular solves. Changes to the PETSc libraries to use this modified storage format resulted in over twice the floating-point rate for some matrices. This improvement can be accounted for by a decrease in the cache misses and TLB (transaction lookaside buffer) misses in the modified code.
C1 [Zhang, Hong] IIT, Dept Comp Sci, Chicago, IL 60616 USA.
[Smith, Barry] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
RP Zhang, H (reprint author), IIT, Dept Comp Sci, 10 W 31st St, Chicago, IL 60616 USA.
EM hzhang@mcs.anl.gov
FU Office of Advanced Scientific Computing Research, Office of Science, US
Department of Energy [DE-AC02-06CH11357]
FX This work was supported by the Office of Advanced Scientific Computing
Research, Office of Science, US Department of Energy, under contract
DE-AC02-06CH11357. The submitted manuscript has been created by UChicago
Argonne, LLC, Operator of Argonne National Laboratory ('Argonne').
Argonne, a US 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
nonexclusive, 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 19
TC 4
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U1 0
U2 1
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1094-3420
J9 INT J HIGH PERFORM C
JI Int. J. High Perform. Comput. Appl.
PD NOV
PY 2011
VL 25
IS 4
BP 386
EP 391
DI 10.1177/1094342010389857
PG 6
WC Computer Science, Hardware & Architecture; Computer Science,
Interdisciplinary Applications; Computer Science, Theory & Methods
SC Computer Science
GA 856OL
UT WOS:000297652200004
ER
PT J
AU Buluc, A
Gilbert, JR
AF Buluc, Aydin
Gilbert, John R.
TI The Combinatorial BLAS: design, implementation, and applications
SO INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS
LA English
DT Article
DE Betweenness centrality; combinatorial BLAS; combinatorial scientific
computing; graph analysis; Markov clustering; mathematical software;
parallel graph library; software framework; sparse matrices
ID BETWEENNESS CENTRALITY; PERFORMANCE; ALGORITHMS; MAPREDUCE; WORLD
AB This paper presents a scalable high-performance software library to be used for graph analysis and data mining. Large combinatorial graphs appear in many applications of high-performance computing, including computational biology, informatics, analytics, web search, dynamical systems, and sparse matrix methods. Graph computations are difficult to parallelize using traditional approaches due to their irregular nature and low operational intensity. Many graph computations, however, contain sufficient coarse-grained parallelism for thousands of processors, which can be uncovered by using the right primitives. We describe the parallel Combinatorial BLAS, which consists of a small but powerful set of linear algebra primitives specifically targeting graph and data mining applications. We provide an extensible library interface and some guiding principles for future development. The library is evaluated using two important graph algorithms, in terms of both performance and ease-of-use. The scalability and raw performance of the example applications, using the Combinatorial BLAS, are unprecedented on distributed memory clusters.
C1 [Buluc, Aydin] Univ Calif Berkeley, Lawrence Berkeley Lab, High Performance Comp Res, Berkeley, CA 94720 USA.
RP Buluc, A (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, High Performance Comp Res, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM abuluc@1bl.gov
OI Buluc, Aydin/0000-0001-7253-9038
FU National Science Foundation [CRI-IAD0709385]; TACC [TG-CCR090036]
FX This work was supported in part by the National Science Foundation
(grant number CRI-IAD0709385) and through TeraGrid resources provided by
TACC (grant number TG-CCR090036).
NR 57
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U1 1
U2 1
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1094-3420
EI 1741-2846
J9 INT J HIGH PERFORM C
JI Int. J. High Perform. Comput. Appl.
PD NOV
PY 2011
VL 25
IS 4
BP 496
EP 509
DI 10.1177/1094342011403516
PG 14
WC Computer Science, Hardware & Architecture; Computer Science,
Interdisciplinary Applications; Computer Science, Theory & Methods
SC Computer Science
GA 856OL
UT WOS:000297652200012
ER
PT J
AU Paster, MD
Ahluwalia, RK
Berry, G
Elgowainy, A
Lasher, S
McKenney, K
Gardiner, M
AF Paster, M. D.
Ahluwalia, R. K.
Berry, G.
Elgowainy, A.
Lasher, S.
McKenney, K.
Gardiner, M.
TI Hydrogen storage technology options for fuel cell vehicles:
Well-to-wheel costs, energy efficiencies, and greenhouse gas emissions
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Article
DE Hydrogen on-board storage; Hydrogen fuel efficiency; Hydrogen delivery
infrastructure; Hydrogen greenhouse gas emissions
AB Five different hydrogen vehicle storage technologies are examined on a Well-to-Wheel basis by evaluating cost, energy efficiency, greenhouse gas (GHG) emissions, and performance. The storage systems are gaseous 350 bar hydrogen, gaseous 700 bar hydrogen, Cold Gas at 500 bar and 200 K, Cryo-Compressed Liquid Hydrogen (CcH2) at 275 bar and 30 K, and an experimental adsorbent material (MOF 177) -based storage system at 250 bar and 100 K. Each storage technology is examined with several hydrogen production options and a variety of possible hydrogen delivery methods. Other variables, including hydrogen vehicle market penetration, are also examined. The 350 bar approach is relatively cost-effective and energy-efficient, but its volumetric efficiency is too low for it to be a practical vehicle storage system for the long term. The MOF 177 system requires liquid hydrogen refueling, which adds considerable cost, energy use, and GHG emissions while having lower volumetric efficiency than the CcH2 system. The other three storage technologies represent a set of trade-offs relative to their attractiveness. Only the CcH2 system meets the critical Department of Energy (DOE) 2015 volumetric efficiency target, and none meet the DOE's ultimate volumetric efficiency target. For these three systems to achieve a 480-km (300-mi) range, they would require a volume of at least 105-175 L in a mid-size FCV. (C) Copyright 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
C1 [Ahluwalia, R. K.; Elgowainy, A.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Berry, G.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Lasher, S.; McKenney, K.] TIAX LLC, Cambridge, MA 02140 USA.
[Gardiner, M.] US DOE, Washington, DC 20585 USA.
RP Paster, MD (reprint author), 10113 Farrcroft Dr, Fairfax, VA 22030 USA.
EM mrkpstr0@gmail.com
FU U.S. Department of Energy
FX This work was funded by the U.S. Department of Energy's Energy
Efficiency and Renewable Energy, Fuel Cell Technologies Program.
NR 16
TC 36
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U1 3
U2 42
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD NOV
PY 2011
VL 36
IS 22
BP 14534
EP 14551
DI 10.1016/j.ijhydene.2011.07.056
PG 18
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 852XN
UT WOS:000297390900026
ER
PT J
AU Borole, AP
Mielenz, JR
AF Borole, Abhijeet P.
Mielenz, Jonathan R.
TI Estimating hydrogen production potential in biorefineries using
microbial electrolysis cell technology
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Article
DE Biofuel cell; Lignocellulosic; Fermentation inhibitors; Water treatment;
Recycle; Value added products
ID FUEL-CELLS; ELECTRICITY-GENERATION; FERMENTATION INHIBITORS;
ETHANOL-PRODUCTION; WHEAT-STRAW; CELLULOSE; BIOMASS; DEGRADATION;
ENERGY; ELECTROHYDROGENESIS
AB Future biofuel and bioproducts industries are expected to generate significant volumes of waste streams containing easily degradable organic matter. The emerging MEC technology has potential to derive added-value from these waste streams via production of hydrogen. A methodology to determine hydrogen production potential from wastewaters is reported. Biorefinery process streams, particularly the stillage or distillation bottoms contain underutilized sugars as well as fermentation and pretreatment byproducts, in the case of lignocellulosic biorefineries. Estimates of hydrogen production from existing starch-based biorefineries indicate potential to generate 750-8900 m(3)/hr of hydrogen. In a lignocellulosic biorefinery designed to produce 265,000 m(3) of ethanol per year, it is estimated that 1260-7200 m(3)/hr of hydrogen can be generated. Removal of fermentation and pretreatment byproducts from stillage streams has the added potential to enable water recycle. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
C1 [Borole, Abhijeet P.; Mielenz, Jonathan R.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 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
FU U.S. Department of Energy's Office of the Biomass Program; National
Renewable Energy Laboratory; Oak Ridge National Laboratory (ORNL); U. S.
Department of Energy [DE AC05-00OR22725]
FX Funding for this work was provided by the U.S. Department of Energy's
Office of the Biomass Program through an agreement with the National
Renewable Energy Laboratory and by the Laboratory Directed Research and
Development Program of Oak Ridge National Laboratory (ORNL), managed by
UT-Battelle, LLC, for the U. S. Department of Energy under Contract No.
DE AC05-00OR22725.
NR 53
TC 13
Z9 13
U1 2
U2 31
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD NOV
PY 2011
VL 36
IS 22
BP 14787
EP 14795
DI 10.1016/j.ijhydene.2011.03.152
PG 9
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 852XN
UT WOS:000297390900050
ER
PT J
AU Bartholomew, MJ
Reynolds, RM
Vogelmann, AM
Min, Q
Edwards, R
Smith, S
AF Bartholomew, M. J.
Reynolds, R. M.
Vogelmann, A. M.
Min, Q.
Edwards, R.
Smith, S.
TI Design of a Shadowband Spectral Radiometer for the Retrieval of Thin
Cloud Optical Depth, Liquid Water Path, and the Effective Radius
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Article
ID MICROWAVE RADIOMETERS; RADIATION; THICKNESS; AUREOLE; SUN; INSTRUMENT;
SCATTERING; ACCURACY; MODELS; VAPOR
AB The design and operation of a Thin-Cloud Rotating Shadowband Radiometer (TCRSR) described here was used to measure the radiative intensity of the solar aureole and enable the simultaneous retrieval of cloud optical depth, drop effective radius, and liquid water path. The instrument consists of photodiode sensors positioned beneath two narrow metal bands that occult the sun by moving alternately from horizon to horizon. Measurements from the narrowband 415-nm channel were used to demonstrate a retrieval of the cloud properties of interest. With the proven operation of the relatively inexpensive TCRSR instrument, its usefulness for retrieving aerosol properties under cloud-free skies and for ship-based observations is discussed.
C1 [Bartholomew, M. J.; Vogelmann, A. M.; Edwards, R.; Smith, S.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Reynolds, R. M.] Remote Measurements & Res Co, Seattle, WA USA.
[Min, Q.] SUNY Albany, Albany, NY 12222 USA.
RP Bartholomew, MJ (reprint author), Brookhaven Natl Lab, Bldg 490D, Upton, NY 11973 USA.
EM bartholomew@bnl.gov
RI Vogelmann, Andrew/M-8779-2014
OI Vogelmann, Andrew/0000-0003-1918-5423
FU U.S. Department of Energy/ARM [DE-FG02-03ER63531]; U.S. Department of
Energy [DE-AC02-98CH10886]
FX We acknowledge the excellent and professional help provided by ARM's
Site Operations Staff at the Southern Great Plains Site, particularly
that provided by Dan Nelson, Craig Webb, and Rod Soper. Support for one
of the authors, Q. Min, came from U.S. Department of Energy/ARM Program
Grant DE-FG02-03ER63531. The other authors were supported, in part, by
the Atmospheric Science Research program of the U.S. Department of
Energy, under Contract DE-AC02-98CH10886.
NR 20
TC 1
Z9 1
U1 0
U2 3
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0739-0572
J9 J ATMOS OCEAN TECH
JI J. Atmos. Ocean. Technol.
PD NOV
PY 2011
VL 28
IS 11
BP 1458
EP 1465
DI 10.1175/JTECH-D-11-00039.1
PG 8
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA 854HD
UT WOS:000297484700008
ER
PT J
AU Lebel, EA
Rusek, A
Sivertz, MB
Yip, K
Thompson, KH
Tafrov, ST
AF Lebel, Emily A.
Rusek, Adam
Sivertz, Michael B.
Yip, Kin
Thompson, Keith H.
Tafrov, Stefan T.
TI Analyses of the Secondary Particle Radiation and the DNA Damage It
Causes to Human Keratinocytes
SO JOURNAL OF RADIATION RESEARCH
LA English
DT Article
DE HZE; Secondary particles; 53BP1 foci; Keratinocytes
ID GALACTIC COSMIC-RAYS; SPACE RADIATION; STEM-CELLS; HUMAN PHANTOM;
HEAVY-IONS; IRON IONS; EXPLORATION; EXPOSURE; ASTRONAUTS; DEPENDENCE
AB High-energy protons, and high mass and energy ions, along with the secondary particles they produce, are the main contributors to the radiation hazard during space explorations. Skin, particularly the epidermis, consisting mainly of keratinocytes with potential for proliferation and malignant transformation, absorbs the majority of the radiation dose. Therefore, we used normal human keratinocytes to investigate and quantify the DNA damage caused by secondary radiation. Its manifestation depends on the presence of retinol in the serum-free media, and is regulated by phosphatidylinositol 3-kinases. We simulated the generation of secondary radiation after the impact of protons and iron ions on an aluminum shield. We also measured the intensity and the type of the resulting secondary particles at two sample locations; our findings agreed well with our predictions. We showed that secondary particles inflict DNA damage to different extents, depending on the type of primary radiation. Low-energy protons produce fewer secondary particles and cause less DNA damage than do high-energy protons. However, both generate fewer secondary particles and inflict less DNA damage than do high mass and energy ions. The majority of cells repaired the initial damage, as denoted by the presence of 53BP1 foci, within the first 24 hours after exposure, but some cells maintained the 53BP1 foci longer.
C1 [Lebel, Emily A.; Thompson, Keith H.; Tafrov, Stefan T.] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
[Rusek, Adam; Sivertz, Michael B.; Yip, Kin] Brookhaven Natl Lab, Collider Accelerator Dept, Upton, NY 11973 USA.
RP Tafrov, ST (reprint author), Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
EM tafrov@bnl.gov
RI Yip, Kin/D-6860-2013
OI Yip, Kin/0000-0002-8576-4311
FU National Aeronautics and Space Administration Department of Energy with
the Brookhaven National Laboratory [NNJ08HB63I, DE-AC02-98CH10886]
FX We would like to thank Dr. Peter Guida and the entire BNL Medical
Department support staff for the invaluable help with these experiments;
Dr. Avril Woodhead for her critical help with the manuscript
preparation; and Dr. Betsy Sutherland for her support of the entire
project. This work was supported by a grant from the National
Aeronautics and Space Administration NNJ08HB63I under Department of
Energy Prime Contract DE-AC02-98CH10886 with the Brookhaven National
Laboratory (to STT).
NR 35
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U1 0
U2 1
PU JAPAN RADIATION RESEARCH SOC
PI CHIBA
PA C/O NAT INST RADIOLOGICAL SCI 9-1 ANAGAWA-4-CHOME INAGE-KU, CHIBA, 263,
JAPAN
SN 0449-3060
J9 J RADIAT RES
JI J. Radiat. Res.
PD NOV
PY 2011
VL 52
IS 6
BP 685
EP 693
DI 10.1269/jrr.11015
PG 9
WC Biology; Radiology, Nuclear Medicine & Medical Imaging
SC Life Sciences & Biomedicine - Other Topics; Radiology, Nuclear Medicine
& Medical Imaging
GA 855LL
UT WOS:000297565800001
PM 22104266
ER
PT J
AU Bhandari, D
Wells, SM
Polemi, A
Kravchenko, II
Shuford, KL
Sepaniak, MJ
AF Bhandari, Deepak
Wells, Sabrina M.
Polemi, Alessia
Kravchenko, Ivan I.
Shuford, Kevin L.
Sepaniak, Michael J.
TI Stamping plasmonic nanoarrays on SERS-supporting platforms
SO JOURNAL OF RAMAN SPECTROSCOPY
LA English
DT Article
DE nanotransfer printing; surface-enhanced Raman scattering;
nanofabrication; SERS substrate; Maxwell's equation
ID ENHANCED RAMAN-SCATTERING; SILVER NANOPARTICLES; OPTICAL-PROPERTIES;
POLYMER NANOCOMPOSITES; SOFT LITHOGRAPHY; REFRACTIVE-INDEX; WAVE-GUIDE;
HOT-SPOTS; SPECTROSCOPY; METAL
AB The dielectric property of a nanoparticle-supporting film has recently garnered attention in the fabrication of plasmonic surfaces. A few studies have shown that the localized surface plasmon resonance (LSPR), and hence surface-enhanced Raman scattering (SERS), strongly depends on the substrate refractive index. In order to create higher efficiency SERS-active surfaces, it is therefore necessary to consider the substrate property along with nanoparticle morphology. However, due to certain limitations of conventional lithography, it is often not feasible to create well-defined plasmonic nanoarrays on a substrate of interest. Here, an additive nanofabrication technique, i.e., nanotransfer printing (nTP), is implemented to integrate electron beam lithography (EBL) defined high-aspect-ratio nanofeatures on a variety of SERS-supporting surfaces. With the aid of suitable surface chemistries, a wide range of plasmonic particles were successfully integrated on surfaces of three physically and chemically distinct dielectric materials, namely, polydimethyl siloxane (PDMS), SU-8 photoresist, and glass surfaces, using silicon-based relief pillars. These nTP-created metal nanoparticles strongly amplify the Raman signal and complement the selection of suitable substrates for better SERS enhancement. Our experimental observations are also supported by theoretical calculations. The implementation of nTP to stamp out metal nanoparticles on a multitude conventional/unconventional substrates has novel applications in designing in-built plasmonic microanalytical devices for SERS sensing and other related photonic studies. Copyright (C) 2011 John Wiley & Sons, Ltd.
C1 [Bhandari, Deepak; Wells, Sabrina M.; Sepaniak, Michael J.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Polemi, Alessia; Shuford, Kevin L.] Drexel Univ, Dept Chem, Philadelphia, PA 19104 USA.
[Kravchenko, Ivan I.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Sepaniak, MJ (reprint author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
EM msepaniak@utk.edu
RI Shuford, Kevin/L-2435-2014; Kravchenko, Ivan/K-3022-2015;
OI Kravchenko, Ivan/0000-0003-4999-5822; POLEMI,
Alessia/0000-0002-3620-6073
FU U.S. Environmental Protection Agency [EPA-83274001]; University of
Tennessee; Scientific User Facilities Division, Office of Basic Energy
Sciences, U.S. Department of Energy; Drexel University
FX This research was supported by the U.S. Environmental Protection Agency
STAR program under Grant EPA-83274001 with the University of Tennessee.
The nanofabricated substrates were created at Oak Ridge National
Laboratory's Center for Nanophase Material Sciences (CNMS), sponsored by
the Scientific User Facilities Division, Office of Basic Energy
Sciences, U.S. Department of Energy. KLS thanks Drexel University for
start-up funding. We are thankful to Dr Jon P. Camden and Christopher
Bennett of UTK for helpful discussions and Dr John Dunlap of UTK for
assistance with AFM.
NR 47
TC 9
Z9 9
U1 3
U2 61
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0377-0486
EI 1097-4555
J9 J RAMAN SPECTROSC
JI J. Raman Spectrosc.
PD NOV
PY 2011
VL 42
IS 11
BP 1916
EP 1924
DI 10.1002/jrs.2940
PG 9
WC Spectroscopy
SC Spectroscopy
GA 854QR
UT WOS:000297509800002
ER
PT J
AU Sadouki, M
Fellah, M
Fellah, ZEA
Ogam, E
Sebaa, N
Mitri, FG
Depollier, C
AF Sadouki, M.
Fellah, M.
Fellah, Z. E. A.
Ogam, E.
Sebaa, N.
Mitri, F. G.
Depollier, C.
TI Measuring static thermal permeability and inertial factor of rigid
porous materials
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID MEDIA; WAVES; PROPAGATION; FREQUENCIES; TORTUOSITY; RANGE
AB An acoustic method based on sound transmission is proposed for deducing the static thermal permeability and the inertial factor of porous materials having a rigid frame at low frequencies. The static thermal permeability of porous material is a geometrical parameter equal to the inverse trapping constant of the solid frame [Lafarge et al., J. Acoust. Soc. Am. 102, 1995 (1997)] and is an important characteristic of the porous material. The inertial factor [Norris., J. Wave Mat. Interact. 1, 365 (1986)] describes the fluid structure interactions in the low frequency range (1-3 kHz). The proposed method is based on a temporal model of the direct and inverse scattering problems for the propagation of transient audible frequency waves in a homogeneous isotropic slab of porous material having a rigid frame. The static thermal permeability and the inertial factor are determined from the solution of the inverse problem. The minimization between experiment and theory is made in the time domain. Tests are performed using industrial plastic foams. Experimental and theoretical data are in good agreement. Furthermore, the prospects are discussed. This method has the advantage of being simple, rapid, and efficient. (C) 2011 Acoustical Society of America. [DOI: 10.1121/1.3641402]
C1 [Fellah, Z. E. A.; Ogam, E.] CNRS UPR 7051, Lab Mecan & Acoust, F-13402 Marseille, France.
[Sadouki, M.; Fellah, M.] USTHB, Fac Phys, Phys Theor Lab, Bab Ezzouar 16111, Algeria.
[Sebaa, N.] Ecole Preparatoire Sci & Tech, Emir Abed El Kader, Bab El Oued, Algeria.
[Mitri, F. G.] Los Alamos Natl Lab, Technol Team, Los Alamos, NM 87545 USA.
[Depollier, C.] Univ Maine, Acoust Lab, UMR CNRS 6613, F-72085 Le Mans 09, France.
RP Fellah, ZEA (reprint author), CNRS UPR 7051, Lab Mecan & Acoust, 31 Chemin Joseph Aiguier, F-13402 Marseille, France.
EM Fellah@lma.cnrs-mrs.fr
OI Sadouki, Mustapha/0000-0003-0772-6237
FU Los Alamos National Laboratory [LDRD- X9N9]
FX The authors are indebted to the referees for the careful reading of the
manuscript and for the many suggestions on improving its presentation.
F.G.M. acknowledges the financial support provided through a Director's
fellowship (LDRD- X9N9) from the Los Alamos National Laboratory.
Disclosure: this unclassified publication, with the following Reference
No. LA-UR 11-11235, has been approved for unlimited public release under
DUSA ENSCI.
NR 19
TC 7
Z9 7
U1 0
U2 5
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD NOV
PY 2011
VL 130
IS 5
BP 2627
EP 2630
DI 10.1121/1.3641402
PN 1
PG 4
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 854HV
UT WOS:000297486500017
PM 22087887
ER
PT J
AU Haupert, S
Renaud, G
Riviere, J
Talmant, M
Johnson, PA
Laugier, P
AF Haupert, Sylvain
Renaud, Guillaume
Riviere, Jacques
Talmant, Maryline
Johnson, Paul A.
Laugier, Pascal
TI High-accuracy acoustic detection of nonclassical component of material
nonlinearity
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID DEPENDENT INTERNAL-FRICTION; ELASTIC-WAVE SPECTROSCOPY; RESONANT
ULTRASOUND SPECTROSCOPY; DISCERN MATERIAL DAMAGE; CRACK DETECTION;
MODULATION SPECTROSCOPY; CROSS-MODULATION; SINGLE-CRYSTALS; NEWS
TECHNIQUES; FATIGUE DAMAGE
AB The aim is to assess the nonclassical component of material nonlinearity in several classes of materials with weak, intermediate, and high nonlinear properties. In this contribution, an optimized nonlinear resonant ultrasound spectroscopy (NRUS) measuring and data processing protocol applied to small samples is described. The protocol is used to overcome the effects of environmental condition changes that take place during an experiment, and that may mask the intrinsic nonlinearity. External temperature fluctuation is identified as a primary source of measurement contamination. For instance, a variation of 0.1 degrees C produced a frequency variation of 0.01%, which is similar to the expected nonlinear frequency shift for weakly nonlinear materials. In order to overcome environmental effects, the reference frequency measurements are repeated before each excitation level and then used to compute nonlinear parameters. Using this approach, relative resonant frequency shifts of 10(-5) can be measured, which is below the limit of 10(-4) often considered as the limit of NRUS sensitivity under common experimental conditions. Due to enhanced sensitivity resulting from the correction procedure applied in this work, nonclassical nonlinearity in materials that before have been assumed to only be classically nonlinear in past work (steel, brass, and aluminum) is reported. (C) 2011 Acoustical Society of America. [DOI: 10.1121/1.3641405]
C1 [Haupert, Sylvain; Renaud, Guillaume; Riviere, Jacques; Talmant, Maryline; Laugier, Pascal] Univ Paris 06, CNRS, Lab Imagerie Parametr, UMR 7623, Paris, France.
[Johnson, Paul A.] Los Alamos Natl Lab, Geophys Grp, Los Alamos, NM 87545 USA.
RP Haupert, S (reprint author), Univ Paris 06, CNRS, Lab Imagerie Parametr, UMR 7623, Paris, France.
EM sylvain.haupert@upmc.fr
OI haupert, sylvain/0000-0003-4705-4527; Johnson, Paul/0000-0002-0927-4003
FU Agence Nationale pour la Recherche (ANR), France [BONUS_07BLAN0197];
Office of Basic Energy Science of the US Department of Energy
FX The authors want to acknowledge the reviewers for their helpful and
constructive comments. This research was supported by the Agence
Nationale pour la Recherche (ANR), France (Grant No. BONUS_07BLAN0197).
P.A.J. was supported in part by Institutional Support at Los Alamos
National Laboratory and by the Office of Basic Energy Science of the US
Department of Energy.
NR 62
TC 18
Z9 19
U1 0
U2 14
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD NOV
PY 2011
VL 130
IS 5
BP 2654
EP 2661
DI 10.1121/1.3641405
PN 1
PG 8
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 854HV
UT WOS:000297486500022
PM 22087892
ER
PT J
AU Ko, KT
Jung, MH
He, Q
Lee, JH
Woo, CS
Chu, K
Seidel, J
Jeon, BG
Oh, YS
Kim, KH
Liang, WI
Chen, HJ
Chu, YH
Jeong, YH
Ramesh, R
Park, JH
Yang, CH
AF Ko, Kyung-Tae
Jung, Min Hwa
He, Qing
Lee, Jin Hong
Woo, Chang Su
Chu, Kanghyun
Seidel, Jan
Jeon, Byung-Gu
Oh, Yoon Seok
Kim, Kee Hoon
Liang, Wen-I
Chen, Hsiang-Jung
Chu, Ying-Hao
Jeong, Yoon Hee
Ramesh, Ramamoorthy
Park, Jae-Hoon
Yang, Chan-Ho
TI Concurrent transition of ferroelectric and magnetic ordering near room
temperature
SO NATURE COMMUNICATIONS
LA English
DT Article
ID BIFEO3 THIN-FILMS; MULTIFERROICS; STRAIN
AB Strong spin-lattice coupling in condensed matter gives rise to intriguing physical phenomena such as colossal magnetoresistance and giant magnetoelectric effects. The phenomenological hallmark of such a strong spin-lattice coupling is the manifestation of a large anomaly in the crystal structure at the magnetic transition temperature. Here we report that the magnetic Neel temperature of the multiferroic compound BiFeO3 is suppressed to around room temperature by heteroepitaxial misfit strain. Remarkably, the ferroelectric state undergoes a first-order transition to another ferroelectric state simultaneously with the magnetic transition temperature. Our findings provide a unique example of a concurrent magnetic and ferroelectric transition at the same temperature among proper ferroelectrics, taking a step toward room temperature magnetoelectric applications.
C1 [Ko, Kyung-Tae; Jung, Min Hwa; Jeong, Yoon Hee; Park, Jae-Hoon] POSTECH, Dept Phys, Pohang 790784, South Korea.
[He, Qing; Seidel, Jan; Ramesh, Ramamoorthy] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Lee, Jin Hong; Woo, Chang Su; Chu, Kanghyun; Yang, Chan-Ho] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea.
[Seidel, Jan; Ramesh, Ramamoorthy] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Jeon, Byung-Gu; Oh, Yoon Seok; Kim, Kee Hoon] Seoul Natl Univ, Dept Phys & Astron, CeNSCMR, Seoul 151747, South Korea.
[Liang, Wen-I; Chen, Hsiang-Jung; Chu, Ying-Hao] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30010, Taiwan.
[Ramesh, Ramamoorthy] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Park, Jae-Hoon] POSTECH, Div Adv Mat Sci, Pohang 790784, South Korea.
[Yang, Chan-Ho] KAIST Inst NanoCentury, Taejon 305701, South Korea.
RP Park, JH (reprint author), POSTECH, Dept Phys, Pohang 790784, South Korea.
EM jhp@postech.ac.kr; chyang@kaist.ac.kr
RI YANG, CHAN-HO/C-2079-2011; Ying-Hao, Chu/A-4204-2008; Oh, Yoon
Seok/A-1071-2011; He, Qing/E-3202-2010;
OI Ying-Hao, Chu/0000-0002-3435-9084; Oh, Yoon Seok/0000-0001-8233-1898;
Ko, Kyung-Tae/0000-0003-3649-4594
FU National Research Foundation of Korea (NRF); Ministry of Education,
Science and Technology [2010-0013528, 2011-0016133, 2010-0014523];
National Creative Initiative [2009-0081576, 2010-0018300]; WCU
[R31-2008-000-10059-0]; Leading Foreign Research Institute through NRF
[2010 00471]; MEST; Alexander von Humboldt Foundation; POSTECH; Office
of Basic Energy Sciences of the US Department of Energy
[DE-AC02-05CH11231]; NSF MRSEC through Penn State University; National
Science Council [NSC-99-2811-M-009-003]; MOKE
FX C.-H.Y. and Y.H.J. acknowledge the support by the National Research
Foundation of Korea (NRF) funded by the Ministry of Education, Science
and Technology (contract nos. 2010-0013528, 2011-0016133 and
2010-0014523). K.-T.K. and J.-H.P. are supported by the National
Creative Initiative (2009-0081576), WCU (R31-2008-000-10059-0), and
Leading Foreign Research Institute Recruitment (2010 00471) programs
through NRF funded by MEST. J. S. acknowledges support from the
Alexander von Humboldt Foundation. PLS is supported by POSTECH and MEST.
The X-ray absorption studies work at Berkeley is supported by the
Director, Office of Basic Energy Sciences of the US Department of Energy
under contract no. DE-AC02-05CH11231. Q.H. is supported by a NSF MRSEC
through Penn State University. The work in National Chiao Tung
University is supported by the National Science Council under contract
No. NSC-99-2811-M-009-003. Work at SNU was supported by National
Creative Research Initiative (2010-0018300) by MEST and the Fundamental
R&D Program for Core Technology of Materials by MOKE.
NR 41
TC 58
Z9 59
U1 4
U2 83
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2041-1723
J9 NAT COMMUN
JI Nat. Commun.
PD NOV
PY 2011
VL 2
AR 567
DI 10.1038/ncomms1576
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 857AQ
UT WOS:000297686500054
PM 22127063
ER
PT J
AU Shambat, G
Ellis, B
Majumdar, A
Petykiewicz, J
Mayer, MA
Sarmiento, T
Harris, J
Haller, EE
Vuckovic, J
AF Shambat, Gary
Ellis, Bryan
Majumdar, Arka
Petykiewicz, Jan
Mayer, Marie A.
Sarmiento, Tomas
Harris, James
Haller, Eugene E.
Vuckovic, Jelena
TI Ultrafast direct modulation of a single-mode photonic crystal nanocavity
light-emitting diode
SO NATURE COMMUNICATIONS
LA English
DT Article
ID ELECTROOPTIC MODULATOR; OPTICAL INTERCONNECTS; QUANTUM DOTS; COMPACT;
POWER; PHOTODETECTOR; LASER
AB Low-power and electrically controlled optical sources are vital for next generation optical interconnect systems to meet strict energy demands. Current optical transmitters consisting of high-threshold lasers plus external modulators consume far too much power to be competitive with future electrical interconnects. Here we demonstrate a directly modulated photonic crystal nanocavity light-emitting diode (LED) with 10 GHz modulation speed and less than 1 fJ per bit energy of operation, which is orders of magnitude lower than previous solutions. The device is electrically controlled and operates at room temperature, while the high modulation speed results from the fast relaxation of the quantum dots used as the active material. By virtue of possessing a small mode volume, our LED is intrinsically single mode and, therefore, useful for communicating information over a single narrowband channel. The demonstrated device is a major step forward in providing practical low-power and integrable sources for on-chip photonics.
C1 [Shambat, Gary; Ellis, Bryan; Majumdar, Arka; Petykiewicz, Jan; Sarmiento, Tomas; Harris, James; Vuckovic, Jelena] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA.
[Mayer, Marie A.; Haller, Eugene E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Vuckovic, J (reprint author), Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA.
EM jela@stanford.edu
OI Sarmiento, Tomas/0000-0002-9176-4094
FU Stanford Graduate Fellowship; NSF GRFP; Interconnect Focus Center; Focus
Center Research Program, a Semiconductor Research Corporation program;
AFOSR MURI for Complex and Robust On-chip Nanophotonics
[FA9550-09-1-0704]; Office of Science, Office of Basic Energy Sciences,
Materials Sciences and Engineering Division, of the US Department of
Energy [DE-AC02-05CH11231]; National Science Foundation
FX G. S. and B. E. were supported by the Stanford Graduate Fellowship. G.
S. is also supported by the NSF GRFP. We acknowledge the financial
support of the Interconnect Focus Center, one of the six research
centres funded under the Focus Center Research Program, a Semiconductor
Research Corporation program. We also acknowledge the AFOSR MURI for
Complex and Robust On-chip Nanophotonics (Dr Gernot Pomrenke), grant
number FA9550-09-1-0704, and the Director, Office of Science, Office of
Basic Energy Sciences, Materials Sciences and Engineering Division, of
the US Department of Energy under Contract No. DE-AC02-05CH11231. Work
was performed in part at the Stanford Nanofabrication Facility of NNIN
supported by the National Science Foundation. We also acknowledge Kelley
Rivoire for assisting in SEM image acquisition.
NR 25
TC 53
Z9 54
U1 2
U2 36
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2041-1723
J9 NAT COMMUN
JI Nat. Commun.
PD NOV
PY 2011
VL 2
AR 539
DI 10.1038/ncomms1543
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 857AQ
UT WOS:000297686500026
PM 22086339
ER
PT J
AU Wall, ME
Raghavan, S
Cohn, JD
Dunbar, J
AF Wall, Michael E.
Raghavan, Sindhu
Cohn, Judith D.
Dunbar, John
TI Genome Majority Vote Improves Gene Predictions
SO PLOS COMPUTATIONAL BIOLOGY
LA English
DT Article
ID ESCHERICHIA-COLI K-12; PROKARYOTIC GENOMES; ANNOTATION; ALIGNMENT;
MOUSE; IDENTIFICATION; VERIFICATION; LIKELIHOOD; ACCURACY
AB Recent studies have noted extensive inconsistencies in gene start sites among orthologous genes in related microbial genomes. Here we provide the first documented evidence that imposing gene start consistency improves the accuracy of gene start-site prediction. We applied an algorithm using a genome majority vote (GMV) scheme to increase the consistency of gene starts among orthologs. We used a set of validated Escherichia coli genes as a standard to quantify accuracy. Results showed that the GMV algorithm can correct hundreds of gene prediction errors in sets of five or ten genomes while introducing few errors. Using a conservative calculation, we project that GMV would resolve many inconsistencies and errors in publicly available microbial gene maps. Our simple and logical solution provides a notable advance toward accurate gene maps.
C1 [Wall, Michael E.; Raghavan, Sindhu; Cohn, Judith D.] Los Alamos Natl Lab, Comp Computat & Stat Sci Div, Los Alamos, NM USA.
[Wall, Michael E.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
[Wall, Michael E.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA.
[Raghavan, Sindhu] Univ Texas Austin, Dept Comp Sci, Austin, TX 78712 USA.
[Dunbar, John] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM USA.
RP Wall, ME (reprint author), Los Alamos Natl Lab, Comp Computat & Stat Sci Div, Los Alamos, NM USA.
EM mewall@lanl.gov
OI Cohn, Judith/0000-0002-1333-3395; Alexandrov, Ludmil/0000-0003-3596-4515
FU Los Alamos National Laboratory [20080138DR]; NIH/National Library of
Medicine [R01LM010120]; LDRD [20110435DR]
FX This work was primarily funded by Los Alamos National Laboratory
Directed Research and Development program (LDRD) grant 20080138DR. MEW
and JDC received additional support from NIH/National Library of
Medicine grant R01LM010120, and MEW received additional support from
LDRD grant 20110435DR. The funders had no role in study design, data
collection and analysis, decision to publish, or preparation of the
manuscript.
NR 28
TC 7
Z9 8
U1 0
U2 3
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA
SN 1553-734X
J9 PLOS COMPUT BIOL
JI PLoS Comput. Biol.
PD NOV
PY 2011
VL 7
IS 11
AR e1002284
DI 10.1371/journal.pcbi.1002284
PG 11
WC Biochemical Research Methods; Mathematical & Computational Biology
SC Biochemistry & Molecular Biology; Mathematical & Computational Biology
GA 851JG
UT WOS:000297263700029
PM 22131910
ER
PT J
AU Mann, AW
Gaidos, E
Aldering, G
AF Mann, Andrew W.
Gaidos, Eric
Aldering, Greg
TI Ground-Based Submillimagnitude CCD Photometry of Bright Stars Using
Snapshot Observations
SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
LA English
DT Article
ID LOW-MASS STARS; HIGH-PRECISION PHOTOMETRY; LIGHT-CURVE PROJECT; SUN-LIKE
STAR; MAUNA-KEA; SUPER-EARTH; M-DWARFS; PLANETARY OCCULTATIONS;
EXTRASOLAR PLANETS; VARIABLE-STARS
AB We demonstrate ground-based submillimagnitude (< 10(-3)) photometry of widely separated bright stars using snapshot CCD imaging. We routinely achieved this photometric precision by (1) choosing nearby comparison stars of a similar magnitude and spectral type, (2) defocusing the telescope to allow high signal (> 10(7) e(-)) to be acquired in a single integration, (3) pointing the telescope so that all stellar images fall on the same detector pixels, and (4) using a region of the CCD detector that is free of nonlinear or aberrant pixels. We describe semiautomated observations with the Supernova Integrated Field Spectrograph (SNIFS) on the University of Hawaii 2.2 m telescope on Mauna Kea, with which we achieved photometric precision as good as 5.2 x 10(-4) (0.56 mmag) with a 5 minute cadence over a 2 hr interval. In one experiment, we monitored eight stars, each separated by several degrees, and achieved submillimagnitude precision with a cadence (per star) of similar to 17 minutes. Our snapshot technique is suitable for automated searches for planetary transits among multiple bright stars.
C1 [Mann, Andrew W.] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA.
[Gaidos, Eric] Univ Hawaii, Dept Geol & Geophys, Honolulu, HI 96822 USA.
[Aldering, Greg] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Mann, AW (reprint author), Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA.
EM amann@ifa.hawaii.edu
OI Mann, Andrew/0000-0003-3654-1602
FU NSF [AST-0908419]; NASA [NNX10AI90G]; US Department of Energy
[DE-AC02-05CH11231]
FX This work was supported by NSF grant AST-0908419 (to E. G.), NASA grant
NNX10AI90G (to E. G.), and US Department of Energy contract
DE-AC02-05CH11231 (to G. A.). We thank John Johnson for providing the
specifications of the narrow z filter currently in use on the University
of Hawaii 2.2 m Orthogonal Parallel Transfer Imaging Camera. We thank
Jean-Charles Cuillandre and Herb Woodruff and the rest of the
Canada-France-Hawaii Telescope (CFHT) personnel for providing the CFHT
SkyProbe data. We thank George Ricker for his detailed comments on the
manuscript. We also thank the anonymous reviewers for their helpful
suggestions.
NR 89
TC 17
Z9 17
U1 0
U2 1
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 0004-6280
EI 1538-3873
J9 PUBL ASTRON SOC PAC
JI Publ. Astron. Soc. Pac.
PD NOV
PY 2011
VL 123
IS 909
BP 1273
EP 1289
DI 10.1086/662640
PG 17
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 853ZF
UT WOS:000297463500004
ER
PT J
AU Lu, L
Anderson-Cook, CM
Robinson, TJ
AF Lu, Lu
Anderson-Cook, Christine M.
Robinson, Timothy J.
TI Optimization of Designed Experiments Based on Multiple Criteria
Utilizing a Pareto Frontier
SO TECHNOMETRICS
LA English
DT Article
DE Balancing competing objectives; Design optimality; Desirability
function; Model misspecification; Robust parameter design
ID MODEL; ALGORITHMS
AB Balancing competing objectives to select an optimal design of experiments involves flexibly combining measures to select a winner. The Pareto front approach for simultaneously considering multiple responses is adapted to design of experiments. The Pareto approach identifies a suite of potential best designs based on different emphases of the objectives. We propose a new algorithm, the Pareto Aggregating Point Exchange (PAPE) algorithm, to more efficiently explore candidate designs by populating the Pareto frontier with all possible contending designs identified during the search. The connection between the Pareto and the Derringer-Suich (1980) desirability function approaches is established and graphical methods are given which enable the user to easily explore design robustness to different weightings of the competing objectives as well as trade-offs between criteria among competing designs. The method is illustrated with two examples: a screening design setting in which it is of interest to simultaneously consider D-efficiency and protect against model misspecification, and a robust parameter design example where simultaneous consideration of D-S-mean, D-S-variance, and design size is of interest. This article has supplementary material online.
C1 [Lu, Lu; Anderson-Cook, Christine M.] Los Alamos Natl Lab, Stat Sci Grp, Los Alamos, NM 87545 USA.
[Robinson, Timothy J.] Univ Wyoming, Dept Stat, Laramie, WY 82071 USA.
RP Lu, L (reprint author), Los Alamos Natl Lab, Stat Sci Grp, POB 1663, Los Alamos, NM 87545 USA.
EM lulu@lanl.gov; c-and-cook@lanl.gov; tjrobin@uwyo.edu
NR 39
TC 36
Z9 36
U1 2
U2 6
PU AMER STATISTICAL ASSOC
PI ALEXANDRIA
PA 732 N WASHINGTON ST, ALEXANDRIA, VA 22314-1943 USA
SN 0040-1706
EI 1537-2723
J9 TECHNOMETRICS
JI Technometrics
PD NOV
PY 2011
VL 53
IS 4
BP 353
EP 365
DI 10.1198/TECH.2011.10087
PG 13
WC Statistics & Probability
SC Mathematics
GA 859VT
UT WOS:000297904600003
ER
PT J
AU de Mello, PE
Lu, N
Makarov, Y
AF de Mello, Phillip E.
Lu, Ning
Makarov, Yuri
TI An optimized autoregressive forecast error generator for wind and load
uncertainty study
SO WIND ENERGY
LA English
DT Article
DE wind integration; wind forecast; load forecast; wind error; load error;
power generation planning; stochastic simulation; wind statistics; load
forecast statistics
AB This paper presents a first-order autoregressive algorithm used to generate real-time (RT), hour-ahead (HA) and day-ahead (DA) wind and load forecast errors in time series. The modeled error time series preserve the characteristics of the historical forecast data sets. Four statistical characteristics are considered: the means, the standard deviations, the autocorrelations and the cross-correlations. A stochastic optimization routine was used to find an optimal set of parameters that minimize the differences of the four characteristics between the generated error series and the targeted ones. The obtained parameters were then in due order of succession used to produce the RT, HA and DA forecasts. This method, although implemented as a first-order regressive random forecast error generator, can be extended to higher orders. Simulation results have shown that the methodology produces random forecast error series that have statistics similar to those derived from real data sets. The wind and load forecast error generator can be used in wind integration studies to produce wind and load forecast in time series for stochastic planning processes. Our future studies will focus on reflecting the diurnal and seasonal differences of the wind and load statistics and on implementing them in the random forecast generator. Copyright (C) 2011 John Wiley & Sons, Ltd.
C1 [de Mello, Phillip E.; Lu, Ning; Makarov, Yuri] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Lu, N (reprint author), Pacific NW Natl Lab, POB 999,MSIN K1-85, Richland, WA 99352 USA.
EM ning.lu@pnl.gov
FU CAISO under Battelle/CAISO [55456]
FX This work was supported by CAISO under Battelle/CAISO Agreement 55456.
NR 7
TC 6
Z9 6
U1 0
U2 7
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1095-4244
J9 WIND ENERGY
JI Wind Energy
PD NOV
PY 2011
VL 14
IS 8
BP 967
EP 976
DI 10.1002/we.460
PG 10
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA 854PJ
UT WOS:000297506400003
ER
PT J
AU Oladosu, G
Kline, K
Uria-Martinez, R
Eaton, L
AF Oladosu, Gbadebo
Kline, Keith
Uria-Martinez, Rocio
Eaton, Laurence
TI Sources of corn for ethanol production in the United States: a
decomposition analysis of the empirical data
SO BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
LA English
DT Article
DE biofuel; indirect land-use change; corn ethanol; index decomposition
analysis
ID LAND-USE; EMISSIONS
AB The use of corn for ethanol production in the United States quintupled between 2001 and 2009, generating concerns that this could lead to the conversion of forests and grasslands around the globe, known as indirect land-use change (iLUC). Estimates of iLUC and related food versus fuel concerns rest on the assumption that the corn used for ethanol production in the United States would come primarily from displacing corn exports and land previously used for other crops. A number of modeling efforts based on these assumptions have projected significant iLUC from the increases in the use of corn for ethanol production. The current study tests the veracity of these assumptions through a systematic decomposition analysis of the empirical data from 2001 to 2009. The logarithmic mean divisia index decomposition method (Type I) was used to estimate contributions of different factors to meeting the corn demand for ethanol production. Results show that about 79% of the change in corn used for ethanol production can be attributed to changes in the distribution of domestic corn consumption among different uses. Increases in the domestic consumption share of corn supply contributed only about 5%. The remaining contributions were 19% from added corn production, and 2% from stock changes. Yield change accounted for about two-thirds of the contributions from production changes. Thus, the results of this study provide little support for large land-use changes or diversion of corn exports because of ethanol production in the United States during the past decade. (C) 2011 Society of Chemical Industry and John Wiley & Sons, Ltd
C1 [Oladosu, Gbadebo; Kline, Keith; Uria-Martinez, Rocio; Eaton, Laurence] Oak Ridge Natl Lab, Renewable Energy Syst Grp, Energy Anal Team, Oak Ridge, TN 37831 USA.
RP Oladosu, G (reprint author), Oak Ridge Natl Lab, Renewable Energy Syst Grp, Energy Anal Team, POB 2008,Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM oladosuga@ornl.gov
RI Oladosu, Gbadebo/B-8970-2012; Eaton, Laurence/E-1471-2012;
OI Eaton, Laurence/0000-0003-1270-9626; Kline, Keith/0000-0003-2294-1170;
Oladosu, Gbadebo/0000-0003-4990-1996
FU US Department of Energy (DoE); US DoE [DE-AC05-00OR22725]
FX This research was supported by the US Department of Energy (DoE) under
the Office of the Biomass Program. We thank Yetta Jaeger of the
Environmental Sciences Division at ORNL for her help in reviewing and
providing comments on the initial version of this paper. We also
appreciate the editorial help of Fred O'Hara. This manuscript has been
authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with
the US DoE. The publisher, by accepting the paper 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 manuscript, or allow others to do so, for US government
purposes. The views in this paper are those of the authors, who are also
responsible for any errors or omissions.
NR 23
TC 17
Z9 17
U1 3
U2 18
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1932-104X
J9 BIOFUEL BIOPROD BIOR
JI Biofuels Bioprod. Biorefining
PD NOV-DEC
PY 2011
VL 5
IS 6
BP 640
EP 653
DI 10.1002/bbb.305
PG 14
WC Biotechnology & Applied Microbiology; Energy & Fuels
SC Biotechnology & Applied Microbiology; Energy & Fuels
GA 847YZ
UT WOS:000297013500015
ER
PT J
AU Tumuluru, JS
Wright, CT
Hess, JR
Kenney, KL
AF Tumuluru, Jaya Shankar
Wright, Christopher T.
Hess, J. Richard
Kenney, Kevin L.
TI A review of biomass densification systems to develop uniform feedstock
commodities for bioenergy application
SO BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
LA English
DT Review
DE densification systems; biomass density; densification energy; biomass
pre-treatment; biomass quality; solid fuel standards
ID PELLETED ANIMAL FEED; CORN STOVER; ENZYMATIC-HYDROLYSIS; PHYSICAL
QUALITY; STEAM EXPLOSION; WOOD RESIDUES; WHEAT-STRAW; HOT-WATER; PART I;
PARAMETERS
AB Developing uniformly formatted, densified feedstock from lignocellulosic biomass is of interest to achieve consistent physical properties such as size and shape, bulk and unit density, and durability, which significantly influence storage, transportation and handling characteristics, and, by extension, feedstock cost and quality. A variety of densification systems are considered for producing a uniform format feedstock commodity for bioenergy applications, including (i) pellet mill, (ii) cuber, (iii) screw extruder, (iv) briquette press, (v) roller press, (vi) tablet press, and (vii) agglomerator. Each of these systems has varying impacts on feedstock chemical and physical properties, and energy consumption. This review discusses the suitability of these densification systems for biomass feedstocks and the impact these systems have on specific energy consumption and end-product quality. For example, a briquette press is more flexible in terms of feedstock variables where higher moisture content and larger particles are acceptable for making good quality briquettes; or among different densification systems, a screw press consumes the most energy because it not only compresses but also shears and mixes the material. Pre-treatment options like pre-heating, grinding, steam explosion, torrefaction, and ammonia fiber explosion (AFEX) can also help to reduce specific energy consumption during densification and improve binding characteristics. Binding behavior can also be improved by adding natural binders, such as proteins, or commercial binders, such as lignosulfonates. The quality of the densified biomass for both domestic and international markets is evaluated using PFI (United States standard) or CEN (European standard). Published in 2011 by John Wiley & Sons, Ltd
C1 [Tumuluru, Jaya Shankar; Wright, Christopher T.; Hess, J. Richard; Kenney, Kevin L.] Idaho Natl Lab, Energy Syst & Technol Div, Biofuels & Renewable Energy Technol Dept, Idaho Falls, ID 83415 USA.
RP Tumuluru, JS (reprint author), Idaho Natl Lab, Energy Syst & Technol Div, Biofuels & Renewable Energy Technol Dept, 2525 N Fremont Ave, Idaho Falls, ID 83415 USA.
EM JayaShankar.Tumuluru@inl.gov
FU US Department of Energy, under DoE Idaho Operations Office
[DE-AC070-5ID14517]
FX This work is supported by the US Department of Energy, under DoE Idaho
Operations Office Contract DE-AC070-5ID14517. Accordingly, the US
government retains and the publisher, by accepting the article for
publication, acknowledges that the US Government retains a nonexclusive,
paid-up, irrevocable, world-wide license to publish or reproduce the
published form of this manuscript, or allow others to do so, for US
government purposes.
NR 149
TC 100
Z9 104
U1 10
U2 113
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1932-104X
J9 BIOFUEL BIOPROD BIOR
JI Biofuels Bioprod. Biorefining
PD NOV-DEC
PY 2011
VL 5
IS 6
BP 683
EP 707
DI 10.1002/bbb.324
PG 25
WC Biotechnology & Applied Microbiology; Energy & Fuels
SC Biotechnology & Applied Microbiology; Energy & Fuels
GA 847YZ
UT WOS:000297013500018
ER
PT J
AU Jin, S
Wu, AT
Lu, XY
Rimmer, RA
Lin, L
Zhao, K
AF Jin Song
Wu, A. T.
Lu Xiang-Yang
Rimmer, R. A.
Lin Lin
Zhao Kui
TI Development of Vertical Buffered Electropolishing for Its Post-Treatment
Technology on 1.5 GHz Niobium SRF Cavities
SO CHINESE PHYSICS LETTERS
LA English
DT Article
AB We report the latest research development of vertical buffered electropolishing on its post-treatment procedure as well as the effects of several major post-treatment techniques for buffered electropolishing (BEP) processed 1.5 GHz niobium (Nb) superconducting radio frequency (SRF) cavities. With the established post-treatment procedure, an accelerating gradient of 28.4 MV/m is obtained on a single cell cavity of the cebaf shape. This is the best result in the history of BEP development. The cavity is limited by quench with a high quality factor over 1.2 x 10(10) at the quench point. Analyses from optical inspection and temperature-mapping show that the quench should be originated from the pits that were already present on the cavity before this BEP treatment. All of these factors indicate that this procedure will have a great potential to produce better results if cavities without intrinsic performance limiting imperfections are used.
C1 [Jin Song; Wu, A. T.; Rimmer, R. A.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
[Jin Song; Lu Xiang-Yang; Lin Lin; Zhao Kui] Peking Univ, State Key Lab Nucl Phys & Technol, Inst Heavy Ion Phys, Sch Phys, Beijing 100871, Peoples R China.
RP Wu, AT (reprint author), Thomas Jefferson Natl Accelerator Facil, 12000 Jefferson Ave, Newport News, VA 23606 USA.
EM andywu@jlab.org
FU U.S. DOE [DE-AC05-06OR23177]
FX We would like to acknowledge P. Kneisel at Jefferson Lab for the
provision of the single cell cavities and useful discussions. This study
is carried out under the collaboration memorandum between Peking
University and Jefferson Lab on SRF R&D, authored by Jefferson Science
Associates, LLC under U.S. DOE Contract No DE-AC05-06OR23177.
NR 37
TC 0
Z9 0
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0256-307X
J9 CHINESE PHYS LETT
JI Chin. Phys. Lett.
PD NOV
PY 2011
VL 28
IS 11
AR 112901
DI 10.1088/0256-307X/28/11/112901
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 851PZ
UT WOS:000297284600025
ER
PT J
AU van Vuuren, DP
Edmonds, JA
Kainuma, M
Riahi, K
Weyant, J
AF van Vuuren, Detlef P.
Edmonds, James A.
Kainuma, Mikiko
Riahi, Keywan
Weyant, John
TI A special issue on the RCPs
SO CLIMATIC CHANGE
LA English
DT Editorial Material
C1 [van Vuuren, Detlef P.] PBL Netherlands Environm Assessment Agcy, Bilthoven, Netherlands.
[van Vuuren, Detlef P.] Univ Utrecht, Utrecht, Netherlands.
[Edmonds, James A.] Univ Maryland, College Pk, MD 20740 USA.
[Edmonds, James A.] Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
[Kainuma, Mikiko] Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan.
[Riahi, Keywan] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria.
[Weyant, John] Stanford Univ, Huang Engn Ctr 260, Stanford, CA 94305 USA.
RP van Vuuren, DP (reprint author), PBL Netherlands Environm Assessment Agcy, POB 303, Bilthoven, Netherlands.
EM Detlef.vanvuuren@pbl.nl
RI van Vuuren, Detlef/A-4764-2009; Riahi, Keywan/B-6426-2011
OI van Vuuren, Detlef/0000-0003-0398-2831; Riahi,
Keywan/0000-0001-7193-3498
NR 2
TC 52
Z9 54
U1 2
U2 23
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0165-0009
J9 CLIMATIC CHANGE
JI Clim. Change
PD NOV
PY 2011
VL 109
IS 1-2
SI SI
BP 1
EP 4
DI 10.1007/s10584-011-0157-y
PG 4
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 852IE
UT WOS:000297350200001
ER
PT J
AU van Vuuren, DP
Edmonds, J
Kainuma, M
Riahi, K
Thomson, A
Hibbard, K
Hurtt, GC
Kram, T
Krey, V
Lamarque, JF
Masui, T
Meinshausen, M
Nakicenovic, N
Smith, SJ
Rose, SK
AF van Vuuren, Detlef P.
Edmonds, Jae
Kainuma, Mikiko
Riahi, Keywan
Thomson, Allison
Hibbard, Kathy
Hurtt, George C.
Kram, Tom
Krey, Volker
Lamarque, Jean-Francois
Masui, Toshihiko
Meinshausen, Malte
Nakicenovic, Nebojsa
Smith, Steven J.
Rose, Steven K.
TI The representative concentration pathways: an overview
SO CLIMATIC CHANGE
LA English
DT Article
ID CARBON-CYCLE MODELS; ATMOSPHERE-OCEAN; SIMPLER MODEL; LAND-USE;
SCENARIOS; STABILIZATION; STRATEGIES; EMISSIONS; ENERGY; COSTS
AB This paper summarizes the development process and main characteristics of the Representative Concentration Pathways (RCPs), a set of four new pathways developed for the climate modeling community as a basis for long-term and near-term modeling experiments. The four RCPs together span the range of year 2100 radiative forcing values found in the open literature, i.e. from 2.6 to 8.5 W/m(2). The RCPs are the product of an innovative collaboration between integrated assessment modelers, climate modelers, terrestrial ecosystem modelers and emission inventory experts. The resulting product forms a comprehensive data set with high spatial and sectoral resolutions for the period extending to 2100. Land use and emissions of air pollutants and greenhouse gases are reported mostly at a 0.5x0.5 degree spatial resolution, with air pollutants also provided per sector (for well-mixed gases, a coarser resolution is used). The underlying integrated assessment model outputs for land use, atmospheric emissions and concentration data were harmonized across models and scenarios to ensure consistency with historical observations while preserving individual scenario trends. For most variables, the RCPs cover a wide range of the existing literature. The RCPs are supplemented with extensions (Extended Concentration Pathways, ECPs), which allow climate modeling experiments through the year 2300. The RCPs are an important development in climate research and provide a potential foundation for further research and assessment, including emissions mitigation and impact analysis.
C1 [van Vuuren, Detlef P.; Kram, Tom] PBL Netherlands Environm Assessment Agcy, NL-3720 AH Bilthoven, Netherlands.
[Edmonds, Jae; Thomson, Allison; Hurtt, George C.; Smith, Steven J.] Univ Maryland, College Pk, MD 20740 USA.
[Edmonds, Jae; Thomson, Allison; Hurtt, George C.; Smith, Steven J.] Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
[Kainuma, Mikiko; Masui, Toshihiko] Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan.
[Riahi, Keywan; Krey, Volker; Nakicenovic, Nebojsa] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria.
[Hibbard, Kathy] Univ Maryland, Richland, WA 99354 USA.
[Hibbard, Kathy] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99354 USA.
[Lamarque, Jean-Francois] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80301 USA.
[Meinshausen, Malte] Potsdam Inst Climate Impact Res PIK, D-14412 Potsdam, Germany.
[Nakicenovic, Nebojsa] Vienna Univ Technol, A-1040 Vienna, Austria.
[Rose, Steven K.] Elect Power Res Inst, Palo Alto, CA USA.
[Hurtt, George C.] Univ Maryland, Dept Geog, College Pk, MD 20742 USA.
[van Vuuren, Detlef P.] Univ Utrecht, Utrecht, Netherlands.
RP van Vuuren, DP (reprint author), PBL Netherlands Environm Assessment Agcy, POB 303, NL-3720 AH Bilthoven, Netherlands.
EM Detlef.vanvuuren@pbl.nl
RI Thomson, Allison/B-1254-2010; Whetton, Penny/A-6885-2012; Hurtt,
George/A-8450-2012; Meinshausen, Malte/A-7037-2011; Lamarque,
Jean-Francois/L-2313-2014; van Vuuren, Detlef/A-4764-2009; Riahi,
Keywan/B-6426-2011
OI Meinshausen, Malte/0000-0003-4048-3521; Lamarque,
Jean-Francois/0000-0002-4225-5074; van Vuuren,
Detlef/0000-0003-0398-2831; Riahi, Keywan/0000-0001-7193-3498
NR 56
TC 992
Z9 997
U1 45
U2 383
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0165-0009
EI 1573-1480
J9 CLIMATIC CHANGE
JI Clim. Change
PD NOV
PY 2011
VL 109
IS 1-2
SI SI
BP 5
EP 31
DI 10.1007/s10584-011-0148-z
PG 27
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 852IE
UT WOS:000297350200002
ER
PT J
AU Thomson, AM
Calvin, KV
Smith, SJ
Kyle, GP
Volke, A
Patel, P
Delgado-Arias, S
Bond-Lamberty, B
Wise, MA
Clarke, LE
Edmonds, JA
AF Thomson, Allison M.
Calvin, Katherine V.
Smith, Steven J.
Kyle, G. Page
Volke, April
Patel, Pralit
Delgado-Arias, Sabrina
Bond-Lamberty, Ben
Wise, Marshall A.
Clarke, Leon E.
Edmonds, James A.
TI RCP4.5: a pathway for stabilization of radiative forcing by 2100
SO CLIMATIC CHANGE
LA English
DT Article
ID CO2 CONCENTRATIONS; LAND-USE; SCENARIOS; EMISSIONS; BIOMASS; CLIMATE;
FUTURE; ENERGY
AB Representative Concentration Pathway (RCP) 4.5 is a scenario that stabilizes radiative forcing at 4.5 W m(-2) in the year 2100 without ever exceeding that value. Simulated with the Global Change Assessment Model (GCAM), RCP4.5 includes long-term, global emissions of greenhouse gases, short-lived species, and land-use-land-cover in a global economic framework. RCP4.5 was updated from earlier GCAM scenarios to incorporate historical emissions and land cover information common to the RCP process and follows a cost-minimizing pathway to reach the target radiative forcing. The imperative to limit emissions in order to reach this target drives changes in the energy system, including shifts to electricity, to lower emissions energy technologies and to the deployment of carbon capture and geologic storage technology. In addition, the RCP4.5 emissions price also applies to land use emissions; as a result, forest lands expand from their present day extent. The simulated future emissions and land use were downscaled from the regional simulation to a grid to facilitate transfer to climate models. While there are many alternative pathways to achieve a radiative forcing level of 4.5 W m(-2), the application of the RCP4.5 provides a common platform for climate models to explore the climate system response to stabilizing the anthropogenic components of radiative forcing.
C1 [Thomson, Allison M.] Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
Univ Maryland, College Pk, MD 20740 USA.
RP Thomson, AM (reprint author), Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
EM Allison.thomson@pnl.gov
RI Thomson, Allison/B-1254-2010; Bond-Lamberty, Ben/C-6058-2008;
OI Bond-Lamberty, Ben/0000-0001-9525-4633; Calvin,
Katherine/0000-0003-2191-4189
FU US Department of Energy, Office of Science
FX Funding was provided by the US Department of Energy, Office of Science
through the Integrated Assessment Research Program. The authors wish to
thank the many scientists and collaborators involved in the planning and
development of the RCP process, and especially the AIM, MESSAGE and
IMAGE modeling teams for time devoted to scenario review and
coordination. We also thank Dr. Yuyu Zhou and three anonymous reviewers
for helpful improvements to earlier versions of this paper.
NR 33
TC 254
Z9 266
U1 7
U2 83
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0165-0009
J9 CLIMATIC CHANGE
JI Clim. Change
PD NOV
PY 2011
VL 109
IS 1-2
SI SI
BP 77
EP 94
DI 10.1007/s10584-011-0151-4
PG 18
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 852IE
UT WOS:000297350200005
ER
PT J
AU Hurtt, GC
Chini, LP
Frolking, S
Betts, RA
Feddema, J
Fischer, G
Fisk, JP
Hibbard, K
Houghton, RA
Janetos, A
Jones, CD
Kindermann, G
Kinoshita, T
Goldewijk, KK
Riahi, K
Shevliakova, E
Smith, S
Stehfest, E
Thomson, A
Thornton, P
van Vuuren, DP
Wang, YP
AF Hurtt, G. C.
Chini, L. P.
Frolking, S.
Betts, R. A.
Feddema, J.
Fischer, G.
Fisk, J. P.
Hibbard, K.
Houghton, R. A.
Janetos, A.
Jones, C. D.
Kindermann, G.
Kinoshita, T.
Goldewijk, Kees Klein
Riahi, K.
Shevliakova, E.
Smith, S.
Stehfest, E.
Thomson, A.
Thornton, P.
van Vuuren, D. P.
Wang, Y. P.
TI Harmonization of land-use scenarios for the period 1500-2100: 600 years
of global gridded annual land-use transitions, wood harvest, and
resulting secondary lands
SO CLIMATIC CHANGE
LA English
DT Article
ID CLIMATE-CHANGE; CARBON-CYCLE; SPATIALLY EXPLICIT; UNITED-STATES; COVER
CHANGE; 3 CENTURIES; HYDE 3.1; MODEL; DEFORESTATION; ATMOSPHERE
AB In preparation for the fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change (IPCC), the international community is developing new advanced Earth System Models (ESMs) to assess the combined effects of human activities (e. g. land use and fossil fuel emissions) on the carbon-climate system. In addition, four Representative Concentration Pathway (RCP) scenarios of the future (2005-2100) are being provided by four Integrated Assessment Model (IAM) teams to be used as input to the ESMs for future carbon-climate projections (Moss et al. 2010). The diversity of approaches and requirements among IAMs and ESMs for tracking land-use change, along with the dependence of model projections on land-use history, presents a challenge for effectively passing data between these communities and for smoothly transitioning from the historical estimates to future projections. Here, a harmonized set of land-use scenarios are presented that smoothly connects historical reconstructions of land use with future projections, in the format required by ESMs. The land-use harmonization strategy estimates fractional land-use patterns and underlying land-use transitions annually for the time period 1500-2100 at 0.5 degrees x 0.5 degrees resolution. Inputs include new gridded historical maps of crop and pasture data from HYDE 3.1 for 1500-2005, updated estimates of historical national wood harvest and of shifting cultivation, and future information on crop, pasture, and wood harvest from the IAM implementations of the RCPs for the period 2005-2100. The computational method integrates these multiple data sources, while minimizing differences at the transition between the historical reconstruction ending conditions and IAM initial conditions, and working to preserve the future changes depicted by the IAMs at the grid cell level. This study for the first time harmonizes land-use history data together with future scenario information from multiple IAMs into a single consistent, spatially gridded, set of land-use change scenarios for studies of human impacts on the past, present, and future Earth system.
C1 [Hurtt, G. C.; Chini, L. P.; Fisk, J. P.] Univ Maryland, Dept Geog, College Pk, MD 20742 USA.
[Hurtt, G. C.; Janetos, A.; Smith, S.; Thomson, A.] Univ Maryland, College Pk, MD 20740 USA.
[Hurtt, G. C.; Janetos, A.; Smith, S.; Thomson, A.] Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
[Frolking, S.] Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA.
[Betts, R. A.; Jones, C. D.] Met Off Hadley Ctr, Exeter EX1 3PB, Devon, England.
[Feddema, J.] Univ Kansas, Dept Geog, Lawrence, KS 66049 USA.
[Fischer, G.; Kindermann, G.; Riahi, K.] Graz Univ Technol, Laxenburg, Austria.
[Fischer, G.; Kindermann, G.; Riahi, K.] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria.
[Hibbard, K.] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99354 USA.
[Houghton, R. A.] Woods Hole Res Ctr, Falmouth, MA 02540 USA.
[Kinoshita, T.] Ibaraki Univ, Coll Agr, Ami, Ibaraki 30003, Japan.
[Goldewijk, Kees Klein; Stehfest, E.; van Vuuren, D. P.] Netherlands Environm Assessment Agcy, The Hague, Netherlands.
[Shevliakova, E.] Princeton Univ, Dept Ecol & Evolutionary Biol, Princeton, NJ 08544 USA.
[Thornton, P.] Oak Ridge Natl Lab, Climate & Ecosyst Proc Environm Sci Div, Oak Ridge, TN 37831 USA.
[Wang, Y. P.] Ctr Australian Weather & Climate Res, Melbourne, Vic 3195, Australia.
[Wang, Y. P.] CSIRO Marine & Atmospher Res, Melbourne, Vic 3195, Australia.
[van Vuuren, D. P.] Univ Utrecht, Utrecht, Netherlands.
RP Hurtt, GC (reprint author), Univ Maryland, Dept Geog, College Pk, MD 20742 USA.
EM gchurtt@umd.edu
RI Thomson, Allison/B-1254-2010; Hurtt, George/A-8450-2012; Thornton,
Peter/B-9145-2012; wang, yp/A-9765-2011; Feddema, Johannes/J-4400-2012;
Klein Goldewijk, Kees/L-5567-2013; Shevliakova, Elena/J-5770-2014; van
Vuuren, Detlef/A-4764-2009; Betts, Richard/P-8976-2015; Riahi,
Keywan/B-6426-2011; Jones, Chris/I-2983-2014
OI Thornton, Peter/0000-0002-4759-5158; Feddema,
Johannes/0000-0002-0800-0908; van Vuuren, Detlef/0000-0003-0398-2831;
Riahi, Keywan/0000-0001-7193-3498;
FU National Aeronautics and Space Administration (NASA); DOE Office of
Science; Joint DECC/Defra Met Office Hadley Centre [GA01101]
FX This work was coordinated by a joint venture between the Analysis,
Integration and Modelling of the Earth System (AIMES) core project of
the International Geosphere-Biosphere Programme (IGBP) and the
Integrated Assessment Modelling Consortium (IAMC) in preparation for
IPCC-AR5. We gratefully acknowledge the support of the National
Aeronautics and Space Administration (NASA) Interdisciplinary Science
Program, and the DOE Office of Science Integrated Assessment Research
Program. RAB and CDJ were supported by the Joint DECC/Defra Met Office
Hadley Centre Climate Programme (GA01101).
NR 81
TC 267
Z9 271
U1 13
U2 141
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0165-0009
J9 CLIMATIC CHANGE
JI Clim. Change
PD NOV
PY 2011
VL 109
IS 1-2
SI SI
BP 117
EP 161
DI 10.1007/s10584-011-0153-2
PG 45
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 852IE
UT WOS:000297350200007
ER
PT J
AU Lamarque, JF
Kyle, GP
Meinshausen, M
Riahi, K
Smith, SJ
van Vuuren, DP
Conley, AJ
Vitt, F
AF Lamarque, Jean-Francois
Kyle, G. Page
Meinshausen, Malte
Riahi, Keywan
Smith, Steven J.
van Vuuren, Detlef P.
Conley, Andrew J.
Vitt, Francis
TI Global and regional evolution of short-lived radiatively-active gases
and aerosols in the Representative Concentration Pathways
SO CLIMATIC CHANGE
LA English
DT Article
ID GENERAL-CIRCULATION MODEL; CARBON-DIOXIDE CLIMATES; NITROGEN DEPOSITION;
TERRESTRIAL ECOSYSTEMS; MULTIMODEL ASSESSMENT; LOWER STRATOSPHERE; OZONE
POLLUTION; UNITED-STATES; BLACK CARBON; SEA-SALT
AB In this paper, we discuss the results of 2000-2100 simulations following the emissions associated with the Representative Concentration Pathways (RCPs) with a chemistry-climate model, focusing on the changes in 1) atmospheric composition (troposphere and stratosphere) and 2) associated environmental parameters (such as nitrogen deposition). In particular, we find that tropospheric ozone is projected to decrease (RCP2.6, RCP4.5 and RCP6) or increase (RCP8.5) between 2000 and 2100, with variations in methane a strong contributor to this spread. The associated tropospheric ozone global radiative forcing is shown to be in agreement with the estimate used in the RCPs, except for RCP8.5. Surface ozone in 2100 is projected to change little compared from its 2000 distribution, a much-reduced impact from previous projections based on the A2 high-emission scenario. In addition, globally-averaged stratospheric ozone is projected to recover at or beyond pre-1980 levels. Anthropogenic aerosols are projected to strongly decrease in the 21st century, a reflection of their projected decrease in emissions. Consequently, sulfate deposition is projected to strongly decrease. However, nitrogen deposition is projected to increase over certain regions because of the projected increase in NH3 emissions.
C1 [Lamarque, Jean-Francois; Conley, Andrew J.; Vitt, Francis] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Kyle, G. Page; Smith, Steven J.] Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD USA.
[Meinshausen, Malte] Potsdam Inst Climate Impact Res, Potsdam, Germany.
[Riahi, Keywan] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria.
[van Vuuren, Detlef P.] Netherlands Environm Assessment Agcy, Utrecht, Netherlands.
[van Vuuren, Detlef P.] Univ Utrecht, Utrecht, Netherlands.
RP Lamarque, JF (reprint author), Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA.
EM lamar@ucar.edu
RI Meinshausen, Malte/A-7037-2011; Pfister, Gabriele/A-9349-2008; Lamarque,
Jean-Francois/L-2313-2014; van Vuuren, Detlef/A-4764-2009; Riahi,
Keywan/B-6426-2011
OI Meinshausen, Malte/0000-0003-4048-3521; Lamarque,
Jean-Francois/0000-0002-4225-5074; van Vuuren,
Detlef/0000-0003-0398-2831; Riahi, Keywan/0000-0001-7193-3498
FU Department of Energy; National Science Foundation; Office of Science
(BER) of the U.S. Department of Energy
FX The authors would like to thank the three anonymous reviewers, P. Hess
and E. Holland for their constructive feedback on previous versions of
this paper. A. J. C. and F. V. were funded by the Department of Energy
under the SciDAC program. Computing resources were provided by the
Climate Simulation Laboratory at NCAR's Computational and Information
Systems Laboratory (CISL), sponsored by the National Science Foundation
and other agencies. This research was enabled by CISL compute and
storage resources. Bluefire, a 4,064-processor IBM Power6 resource with
a peak of 77 TeraFLOPS provided more than 7.5 million computing hours,
the GLADE high-speed disk resources provided 0.4 PetaBytes of dedicated
disk and CISL's 12-PB HPSS archive provided over 1 PetaByte of storage
in support of this research project. The CESM project is supported by
the National Science Foundation and the Office of Science (BER) of the
U.S. Department of Energy. The National Center for Atmospheric Research
is operated by the University Corporation for Atmospheric Research under
sponsorship of the National Science Foundation.
NR 75
TC 145
Z9 148
U1 2
U2 54
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0165-0009
EI 1573-1480
J9 CLIMATIC CHANGE
JI Clim. Change
PD NOV
PY 2011
VL 109
IS 1-2
SI SI
BP 191
EP 212
DI 10.1007/s10584-011-0155-0
PG 22
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 852IE
UT WOS:000297350200009
ER
PT J
AU Meinshausen, M
Smith, SJ
Calvin, K
Daniel, JS
Kainuma, MLT
Lamarque, JF
Matsumoto, K
Montzka, SA
Raper, SCB
Riahi, K
Thomson, A
Velders, GJM
van Vuuren, DPP
AF Meinshausen, Malte
Smith, S. J.
Calvin, K.
Daniel, J. S.
Kainuma, M. L. T.
Lamarque, J-F.
Matsumoto, K.
Montzka, S. A.
Raper, S. C. B.
Riahi, K.
Thomson, A.
Velders, G. J. M.
van Vuuren, D. P. P.
TI The RCP greenhouse gas concentrations and their extensions from 1765 to
2300
SO CLIMATIC CHANGE
LA English
DT Article
ID CUMULATIVE CARBON EMISSIONS; ATMOSPHERE-OCEAN; SIMPLER MODEL; CYCLE
MODELS; CLIMATE; SCENARIOS; GROWTH; AIR; STABILIZATION; CO2
AB We present the greenhouse gas concentrations for the Representative Concentration Pathways (RCPs) and their extensions beyond 2100, the Extended Concentration Pathways (ECPs). These projections include all major anthropogenic greenhouse gases and are a result of a multi-year effort to produce new scenarios for climate change research. We combine a suite of atmospheric concentration observations and emissions estimates for greenhouse gases (GHGs) through the historical period (1750-2005) with harmonized emissions projected by four different Integrated Assessment Models for 2005-2100. As concentrations are somewhat dependent on the future climate itself (due to climate feedbacks in the carbon and other gas cycles), we emulate median response characteristics of models assessed in the IPCC Fourth Assessment Report using the reduced-complexity carbon cycle climate model MAGICC6. Projected 'best-estimate' global-mean surface temperature increases (using inter alia a climate sensitivity of 3 degrees C) range from 1.5 degrees C by 2100 for the lowest of the four RCPs, called both RCP3-PD and RCP2.6, to 4.5 degrees C for the highest one, RCP8.5, relative to pre-industrial levels. Beyond 2100, we present the ECPs that are simple extensions of the RCPs, based on the assumption of either smoothly stabilizing concentrations or constant emissions: For example, the lower RCP2.6 pathway represents a strong mitigation scenario and is extended by assuming constant emissions after 2100 (including net negative CO2 emissions), leading to CO2 concentrations returning to 360 ppm by 2300. We also present the GHG concentrations for one supplementary extension, which illustrates the stringent emissions implications of attempting to go back to ECP4.5 concentration levels by 2250 after emissions during the 21(st) century followed the higher RCP6 scenario. Corresponding radiative forcing values are presented for the RCP and ECPs.
C1 [Meinshausen, Malte] Potsdam Inst Climate Impact Res PIK, Potsdam, Germany.
[Smith, S. J.; Calvin, K.; Thomson, A.] Univ Maryland, College Pk, MD 20740 USA.
[Smith, S. J.; Calvin, K.; Thomson, A.] Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
[Daniel, J. S.] NOAA, Earth Syst Res Lab, Div Chem Sci, Boulder, CO 80305 USA.
[Kainuma, M. L. T.; Matsumoto, K.] Natl Inst Environm Studies, Ctr Global Environm Res, Tsukuba, Ibaraki, Japan.
[Lamarque, J-F.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Raper, S. C. B.] Manchester Metropolitan Univ, CATE, Manchester M15 6BH, Lancs, England.
[Riahi, K.] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria.
[Velders, G. J. M.] Natl Inst Publ Hlth & Environm RIVM, Bilthoven, Netherlands.
[van Vuuren, D. P. P.] Netherlands Environm Assessment Agcy PBL, Bilthoven, Netherlands.
[Meinshausen, Malte] Univ Melbourne, Sch Earth Sci, Melbourne, Vic 3010, Australia.
[Matsumoto, K.] Univ Shiga Prefecture, Sch Environm Sci, Hikone, Japan.
[Montzka, S. A.] NOAA, Earth Syst Res Lab, Global Monitoring Div, Boulder, CO 80305 USA.
[van Vuuren, D. P. P.] Univ Utrecht, Utrecht, Netherlands.
RP Meinshausen, M (reprint author), Potsdam Inst Climate Impact Res PIK, Potsdam, Germany.
EM malte.meinshausen@pik-potsdam.de
RI van Vuuren, Detlef/A-4764-2009; Thomson, Allison/B-1254-2010; Riahi,
Keywan/B-6426-2011; Manager, CSD Publications/B-2789-2015; Meinshausen,
Malte/A-7037-2011; Daniel, John/D-9324-2011; Lamarque,
Jean-Francois/L-2313-2014;
OI van Vuuren, Detlef/0000-0003-0398-2831; Riahi,
Keywan/0000-0001-7193-3498; Montzka, Stephen/0000-0002-9396-0400;
Meinshausen, Malte/0000-0003-4048-3521; Lamarque,
Jean-Francois/0000-0002-4225-5074; Calvin, Katherine/0000-0003-2191-4189
NR 80
TC 775
Z9 794
U1 49
U2 275
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0165-0009
J9 CLIMATIC CHANGE
JI Clim. Change
PD NOV
PY 2011
VL 109
IS 1-2
SI SI
BP 213
EP 241
DI 10.1007/s10584-011-0156-z
PG 29
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 852IE
UT WOS:000297350200010
ER
PT J
AU Aluie, H
Kurien, S
AF Aluie, H.
Kurien, S.
TI Joint downscale fluxes of energy and potential enstrophy in rotating
stratified Boussinesq flows
SO EPL
LA English
DT Article
ID 2-DIMENSIONAL TURBULENCE; SIMULATION; VORTICITY; CASCADES
AB We employ a coarse-graining approach to analyze non-linear cascades in Boussinesq flows using high-resolution simulation data. We derive budgets which resolve the evolution of energy and potential enstrophy simultaneously in space and in scale. We then use numerical simulations of Boussinesq flows, with forcing in the large scales, and fixed rotation and stable stratification along the vertical axis, to study the inter-scale flux of energy and potential enstrophy in three different regimes of stratification and rotation: i) strong rotation and moderate stratification, ii) moderate rotation and strong stratification, and iii) equally strong stratification and rotation. In all three cases, we observe constant fluxes of both global invariants, the mean energy and mean potential enstrophy, from large to small scales. The existence of constant potential enstrophy flux ranges provides the first direct empirical evidence in support of the notion of a cascade of potential enstrophy. The persistent forward cascade of the two invariants reflects a marked departure of these flows from two-dimensional turbulence. Copyright (C) EPLA, 2011
C1 [Aluie, H.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
[Aluie, H.; Kurien, S.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Kurien, S.] New Mexico Consortium, Los Alamos, NM 87544 USA.
RP Aluie, H (reprint author), Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
EM hussein@jhu.edu
FU Office of Science of the US DOE [DE-AC02-06CH11357]; NSF [PHY-0903872,
NSF CMG-1025188]; LANL/LDRD; DOE ASCR; US DOE at LANL
[DE-AC52-06NA25396]
FX We used resources of the Argonne Leadership Computing Facility at
Argonne National Laboratory, supported by the Office of Science of the
US DOE under Contract No. DE-AC02-06CH11357. HA acknowledges partial
support from NSF grant PHY-0903872 during a visit to the Kavli Institute
for Theoretical Physics. HA was supported by LANL/LDRD program and by
DOE ASCR program in Applied Mathematical Sciences. SK received partial
funding from NSF program Collaborations in the Mathematical Geosciences:
NSF CMG-1025188. This research was performed under the auspices of the
US DOE at LANL under Contract No. DE-AC52-06NA25396.
NR 31
TC 17
Z9 17
U1 0
U2 5
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 NOV
PY 2011
VL 96
IS 4
AR 44006
DI 10.1209/0295-5075/96/44006
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 852CC
UT WOS:000297322500026
ER
PT J
AU Arend, N
Haussler, W
AF Arend, N.
Haeussler, W.
TI A quantum-mechanical description of Rotating Field Spin Echo
SO EPL
LA English
DT Article
ID RESONANCE; SCATTERING; FLIPPERS
AB Neutron Spin Echo (NSE) is a technique for quasi-elastic neutron scattering with very high energy resolution. The latter is achieved by comparing the Larmor precession angles of a polarized neutron beam in two well-known magnetic fields before and after scattering in a sample. This "spin encoding" or "Larmor labeling" can be implemented by different technical methods, the most established variants being conventional NSE and Neutron Resonance Spin Echo (NRSE). In this publication we discuss Rotating Field Spin Echo (RFSE), a technique for measurements in the low-resolution domain. The analogy to NRSE is demonstrated by deriving the working principle using the quantum-mechanical method of time-evolution operators, a technique that was developed for NRSE in previous publications. Furthermore, we give an estimation of the inherent upper frequency limit of RFSE based on our theory. Copyright (C) EPLA, 2011
C1 [Arend, N.] Forschungszentrum Julich, JCNS 1, Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Haeussler, W.] Tech Univ Munich, Forsch Neutronenquelle Heinz Maier Leibnitz, D-85748 Garching, Germany.
[Haeussler, W.] Tech Univ Munich, Phys Dept E21, D-85748 Garching, Germany.
RP Arend, N (reprint author), Forschungszentrum Julich, JCNS 1, Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM n.arend@fz-juelich.de
FU European Commission [RII3-CT-2003-505925]
FX This research has been supported by the European Commission under the
6th Framework Programme through the Key Action: Strengthening the
European Research Area, Research Infrastructures, Contract No:
RII3-CT-2003-505925.
NR 15
TC 1
Z9 1
U1 1
U2 7
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 NOV
PY 2011
VL 96
IS 4
AR 42001
DI 10.1209/0295-5075/96/42001
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 852CC
UT WOS:000297322500018
ER
PT J
AU Ning, PQ
Wang, F
Ngo, KDT
AF Ning, Puqi
Wang, Fred
Ngo, Khai D. T.
TI High-Temperature SiC Power Module Electrical Evaluation Procedure
SO IEEE TRANSACTIONS ON POWER ELECTRONICS
LA English
DT Article
DE High-temperature techniques; packaging
AB To take full advantage of silicon carbide semiconductor devices, high-temperature device packaging needs to be developed. This paper describes potential defects from design and fabrication procedures, and presents a systematic electrical evaluation process to detect such defects. This systematic testing procedure can rapidly detect many defects and reduce the risk in high-temperature packaging testing. A multichip module development procedure that uses this testing procedure is also presented and demonstrated with an example.
C1 [Ning, Puqi] Oak Ridge Natl Lab, Natl Transportat Res Ctr, Knoxville, TN 37932 USA.
[Wang, Fred] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA.
[Wang, Fred] Univ Tennessee, Natl Transportat Res Ctr, Oak Ridge Natl Lab, Knoxville, TN 37996 USA.
[Ngo, Khai D. T.] Virginia Polytech Inst & State Univ, Ctr Power Elect Syst, Blacksburg, VA 24060 USA.
RP Ning, PQ (reprint author), Oak Ridge Natl Lab, Natl Transportat Res Ctr, Knoxville, TN 37932 USA.
EM ningp@ornl.gov; fred.wang@utk.edu; kdtn@vt.edu
FU UT-Battelle, LLC [DE-AC05-00OR22725]; U.S. Department of Energy
FX This paperwas supported by the UT-Battelle, LLC, under Contract
DE-AC05-00OR22725 with the U.S. Department of Energy. This paper was
originally presented at the International Microelectronics And Packaging
Society High Temperature Electronics Conference and Exposition (HiTEC),
Albuquerque, NM, May 2010, and has been revised and partially expanded
for consideration for IEEE TRANSACTIONS ON POWER ELECTRONICS LETTERS.
Recommended for publication by Associate Editor D. Maksimovic.
NR 12
TC 18
Z9 19
U1 0
U2 9
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8993
J9 IEEE T POWER ELECTR
JI IEEE Trans. Power Electron.
PD NOV
PY 2011
VL 26
IS 11
BP 3079
EP 3083
DI 10.1109/TPEL.2011.2151879
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA 852KE
UT WOS:000297355900002
ER
PT J
AU Dong, D
Thacker, T
Burgos, R
Wang, F
Boroyevich, D
AF Dong, Dong
Thacker, Timothy
Burgos, Rolando
Wang, Fei
Boroyevich, Dushan
TI On Zero Steady-State Error Voltage Control of Single-Phase PWM Inverters
With Different Load Types
SO IEEE TRANSACTIONS ON POWER ELECTRONICS
LA English
DT Article
DE PWM inverter; single phase; stationary frame; synchronous frame
ID UNINTERRUPTIBLE POWER-SUPPLIES; COMPENSATE UNBALANCE; CONNECTED
INVERTERS; HARMONIC DISTORTION; CURRENT REGULATORS; UPS INVERTERS;
DESIGN; STRATEGIES; SCHEME
AB This paper comprehensively investigates and compares different multiloop linear control schemes for single-phase pulsewidth modulation inverters, both in stationary and synchronous (d-q) frames, by focusing on their steady-state error under different loading conditions. Specifically, it is shown how proportional plus resonant (P + R) control and load current feedback (LCF) control can, respectively, improve the steady-state and transient performance of the inverter, leading to the proposal of a PID + R + LCF control scheme. Furthermore, the LCF control and capacitive current feedback control schemes are shown to be subject to stability issues under second and higher order filter loads. Additionally, the equivalence between the stationary frame and d-q frame controllers is discussed depending on the orthogonal term generation method, and a d-q frame voltage control strategy is proposed eliminating the need for the generation of this orthogonal component. This is achieved while retaining all the advantages of operating in the synchronous d-q frame, i.e., zero steady-state error and ease of implementation. All theoretical findings are validated experimentally using a 1.5 kW laboratory prototype.
C1 [Dong, Dong; Boroyevich, Dushan] Virginia Tech, Ctr Power Elect Syst, Blacksburg, VA 24061 USA.
[Thacker, Timothy] PowerHub Syst, Blacksburg, VA 24061 USA.
[Burgos, Rolando] ABB US Corp Res Ctr, Raleigh, NC 27606 USA.
[Wang, Fei] Univ Tennessee, Knoxville, TN 37996 USA.
[Wang, Fei] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Dong, D (reprint author), Virginia Tech, Ctr Power Elect Syst, Blacksburg, VA 24061 USA.
EM dongd@vt.edu; tthacker@pwrhub.com; rburgos@ieee.org; fred.wang@utk.edu;
dusan@vt.edu
NR 47
TC 48
Z9 55
U1 0
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8993
EI 1941-0107
J9 IEEE T POWER ELECTR
JI IEEE Trans. Power Electron.
PD NOV
PY 2011
VL 26
IS 11
BP 3285
EP 3297
DI 10.1109/TPEL.2011.2157361
PG 13
WC Engineering, Electrical & Electronic
SC Engineering
GA 852KE
UT WOS:000297355900021
ER
PT J
AU Bayram, B
Soykal, II
von Deak, D
Miller, JT
Ozkan, US
AF Bayram, Burcu
Soykal, I. Ilgaz
von Deak, Dieter
Miller, Jeffrey T.
Ozkan, Umit S.
TI Ethanol steam reforming over Co-based catalysts: Investigation of cobalt
coordination environment under reaction conditions
SO JOURNAL OF CATALYSIS
LA English
DT Article
DE X-ray absorption spectroscopy; XANES; EXAFS; In situ XRD; Ethanol steam
reforming; Cobalt
ID FUEL-CELL APPLICATIONS; NOBLE-METAL CATALYSTS; HYDROGEN-PRODUCTION;
BIO-ETHANOL; PARTIAL OXIDATION; SUPPORTED CATALYSTS; OXIDE; PERFORMANCE;
NANOPARTICLES; ACTIVATION
AB The transformations and the state of cobalt species during steam reforming of ethanol over Co/CeO(2) were investigated using in situ X-ray diffraction, controlled-atmosphere X-ray absorption fine structure, and Xray photoelectron spectroscopy as well as steady state activity measurements. The catalyst was pre-treated under an oxidizing or reducing atmosphere prior to characterization and activity testing to yield a Co(3)O(4)-rich or a Co(0)-rich surface, respectively. While CO(3)O(4) was found to be inactive for ethanol steam reforming, gradual activation of the oxidation-pretreated catalyst with temperature through reduction in Co(3)O(4) took place under reaction conditions, and, over the activated catalyst, a mixture of both CoO and metallic Co were observed. Over the reduction-pretreated catalyst, metallic Co was partially oxidized to CoO during steam reforming of ethanol. The extent of cobalt reduction was observed to be independent of the initial state of the metal on the catalyst surface, and cobalt phase had the same composition under reaction above 450 degrees C. (C) 2011 Elsevier Inc. All rights reserved.
C1 [Bayram, Burcu; Soykal, I. Ilgaz; von Deak, Dieter; Ozkan, Umit S.] Ohio State Univ, Dept Chem & Biomol Engn, Columbus, OH 43210 USA.
[Miller, Jeffrey T.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Ozkan, US (reprint author), Ohio State Univ, Dept Chem & Biomol Engn, 140W 19th Ave, Columbus, OH 43210 USA.
EM ozkan.1@osu.edu
RI Ozkan, Umit/K-8483-2012; Bayram, Burcu/F-9279-2013
FU US Department of Energy [DE-FG36-05GO15033]; E.I. DuPont de Nemours Co.;
The Dow Chemical Company; State of Illinois; US Department of Energy,
Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
FX We gratefully acknowledge the funding from the US Department of Energy
through the Grant DE-FG36-05GO15033. Portions of this work were
performed at the DuPont-Northwestern-Dow Collaborative Access Team
(DND-CAT) located at Sector 5 of the Advanced Photon Source (APS).
DND-CAT is supported by E.I. DuPont de Nemours & Co., The Dow Chemical
Company and the State of Illinois. Use of the APS was supported by the
US Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Contract No. DE-AC02-06CH11357.
NR 54
TC 64
Z9 64
U1 4
U2 50
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9517
J9 J CATAL
JI J. Catal.
PD NOV 1
PY 2011
VL 284
IS 1
BP 77
EP 89
DI 10.1016/j.jcat.2011.09.001
PG 13
WC Chemistry, Physical; Engineering, Chemical
SC Chemistry; Engineering
GA 853AW
UT WOS:000297399600009
ER
PT J
AU Cockeram, BV
Smith, RW
Leonard, KJ
Byun, TS
Snead, LL
AF Cockeram, B. V.
Smith, R. W.
Leonard, K. J.
Byun, T. S.
Snead, L. L.
TI Development of microstructure and irradiation hardening of Zircaloy
during low dose neutron irradiation at nominally 358 degrees C
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID FRACTURE-TOUGHNESS MEASUREMENT; ZIRCONIUM ALLOYS; PRECIPITATE STABILITY;
ZR-ALLOYS; DEFORMATION; DAMAGE; GROWTH
AB Wrought Zircaloy-2 and Zircaloy-4 were neutron irradiated at nominally 358 degrees C in the high flux isotope reactor (HFIR) at relatively low neutron fluences between 5.8 x 10(22) and 2.9 x 10(25) n/m(2) (E > 1 MeV). The irradiation hardening and change in microstructure were characterized following irradiation using tensile testing and examinations of microstructure using Analytical Electron Microscopy (AEM). Small increments of dose (0.0058, 0.11, 0.55, 1.08, and 2.93 x 10(25) n/m(2)) were used in the range where the saturation of irradiation hardening is typically observed so that the role of microstructure evolution and < a > loop formation on irradiation hardening could be correlated. An incubation dose between 5.8 x 10(23) and 1.1 x 10(24) n/m(2) was needed for loop nucleation to occur that resulted in irradiation hardening. Increases in yield strength were consistent with previous results in this temperature regime, and as expected less irradiation hardening and lower < a > loop number density values than those generally reported in literature for irradiations at 260-326 degrees C were observed. Unlike previous lower temperature data, there is evidence in this study that the irradiation hardening can decrease with dose over certain ranges of fluence. Irradiation induced voids were observed in very low numbers in the Zircaloy-2 materials at the highest fluence. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Cockeram, B. V.; Smith, R. W.] Bechtel Marine Prop Corp, Bettis Lab, W Mifflin, PA 15122 USA.
[Leonard, K. J.; Byun, T. S.; Snead, L. L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Cockeram, BV (reprint author), Bechtel Marine Prop Corp, Bettis Lab, W Mifflin, PA 15122 USA.
EM bcockeram@verizon.net
FU USDOE; Division of Materials Science and Engineering, DOE
FX This work was supported by USDOE. The authors are grateful for the
review and comments provided by J.E. Hack and B.F. Kammenzind. Thanks
also to the following ORNL personnel for their contributions in
completing irradiations and testing (A.W. Williams and T.S. Byun).
Irradiations were carried out in the High Flux Isotope Reactor, a
Department of Energy Office of Science User Facility. Thanks to L.T.
Gibson and M.S. Meyers for their work on TEM sample preparation. TEM
examination was performed at the ORNL User Center sponsored by the
Division of Materials Science and Engineering, DOE.
NR 44
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2011
VL 418
IS 1-3
BP 46
EP 61
DI 10.1016/j.jnucmat.2011.07.006
PG 16
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 850XS
UT WOS:000297233500007
ER
PT J
AU Yun, D
Oaks, AJ
Chen, WY
Kirk, MA
Rest, J
Insepov, ZZ
Yacout, AM
Stubbins, JF
AF Yun, Di
Oaks, Aaron J.
Chen, Wei-ying
Kirk, Marquis A.
Rest, Jeffrey
Insepov, Zinetula Z.
Yacout, Abdellatif M.
Stubbins, James F.
TI Kr and Xe irradiations in lanthanum (La) doped ceria: Study at the high
dose regime
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID BUBBLE FORMATION; HEAVY-ION; CEO2; UO2; TEM
AB In order to understand cavity and bubble formation and growth in oxide nuclear fuel materials, ion beam irradiation experiments were conducted with two common fission gas species: Kr and Xe. Ceria (CeO2) was selected as a surrogate material for uranium dioxide (UO2) due to its many similar properties to UO2. Ion beam energies were chosen such that both cavities and gas bubbles structures were induced by ion irradiations. The ion irradiation experiments were carried out at 600 degrees C, at which temperature, cavity/gas bubble structures are believed to be immobile in this material. Lanthanum (La) was chosen as a dopant in CeO2 to investigate the effect of impurities. The presence of La in the CeO2 lattice also introduces a predictable initial concentration of oxygen vacancies, similar to the introduction of oxygen vacancies by the existence of Pu3+ in MOX fuel [1]. The influence of two La concentrations, 5% and 25%, were examined.
The study focused on the high dose regime where cavity/gas bubble structures were clearly identifiable with their sizes and number densities readily measurable. Cavity/gas bubble coarsening by coalescence was identified with TEM (Transmission Electron Microscopy) characterizations of as-irradiated La doped CeO2 specimens. The results revealed that lanthanum trapping has significant influence on the cavity/bubble growth in the material lattice by comparing the cavity/gas bubble size distributions between 5% La doped ceria and 25% La doped ceria. Lattice and kinetic Monte Carlo calculations described in a previous work have provided insights to the interpretations of the experimental results [2].
Solid state Xe precipitates were observed in low energy Xe implantation in 5% La doped ceria to a very high fluence of 1 x 10(17) ions/cm(2) at 600 degrees C. The solid state Xe precipitate structures are represented by faceted morphology. Very similar observations of solid state/near solid state Xe bubbles were made by Nogita et al. in the outer region of UO2 pellet irradiated to a pellet average burnup of 49 GWd/t [3]. Published by Elsevier B.V.
C1 [Yun, Di; Kirk, Marquis A.; Rest, Jeffrey; Insepov, Zinetula Z.; Yacout, Abdellatif M.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Oaks, Aaron J.; Chen, Wei-ying; Stubbins, James F.] Univ Illinois, Urbana, IL USA.
RP Yun, D (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM diyun@anl.gov
RI Yun, Di/K-6441-2013; Insepov, Zinetula/L-2095-2013;
OI Yun, Di/0000-0002-9767-3214; Insepov, Zinetula/0000-0002-8079-6293;
Oaks, Aaron/0000-0001-8552-242X
FU US Department of Energy [DE-FC07-07ID14838]; DOE [NERI-08-041]
FX This work was supported by the US Department of Energy DE-FC07-07ID14838
and DOE NERI-08-041. The author would like to thank Douglas Jeffers for
helping with the ion irradiation work and Dr. Jianguo Wen for helpful
instructions on the TEM work. The author would also like to thank Dr.
Robert C. Birtcher for meaningful discussions on cavity/gas bubble
behaviors under the influence of ion beam irradiations.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2011
VL 418
IS 1-3
BP 80
EP 86
DI 10.1016/j.jnucmat.2011.08.005
PG 7
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 850XS
UT WOS:000297233500010
ER
PT J
AU Parish, CM
Edmondson, PD
Zhang, Y
Miller, MK
AF Parish, C. M.
Edmondson, P. D.
Zhang, Y.
Miller, M. K.
TI Direct observation of ion-irradiation-induced chemical mixing
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID TRANSMISSION-ELECTRON-MICROSCOPY; SIMS SPECTRUM-IMAGES; DISPLACEMENT
CASCADES; CU3AU
AB Irradiation-induced dissolution of particles and mixing at heterogeneous interfaces in materials is of importance for ion beam processing and radiation materials sciences. Modeling has predicted dissolution of particles and homogenization at sharp chemical interfaces; imaging and depth profiling techniques have also been used to observe damage and mixing resulting from ion or neutron bombardment. Analytical scanning transmission electron microscopy has been used to directly observe the ion-irradiation induced elemental mixing and dissolution of similar to 25-50 nm titanium oxycarbonitrides in a nanostructured ferritic alloy irradiated at 173 K. The magnitude of the mixed zone is consistent with radiation damage theory. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Parish, C. M.; Edmondson, P. D.; Zhang, Y.; Miller, M. K.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RP Parish, CM (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
EM parishcm@ornl.gov
RI Parish, Chad/J-8381-2013; Edmondson, Philip/O-7255-2014
OI Edmondson, Philip/0000-0001-8990-0870
FU US Department of Energy, Basic Energy Sciences, Materials Sciences and
Engineering Division; Shared Research Equipment (SHaRE) User Facility;
Oak Ridge National Laboratory by the Office of Basic Energy Sciences, US
Department of Energy; Pacific Northwest National Laboratory by the
Office of Biological and Environmental Research, US Department of
Energy; UT-Battelle, LLC, US Department of Energy [DE-AC05-00OR22725]
FX Research supported by the US Department of Energy, Basic Energy
Sciences, Materials Sciences and Engineering Division. STEM and FIB
supported by the Shared Research Equipment (SHaRE) User Facility, which
is sponsored at Oak Ridge National Laboratory by the Office of Basic
Energy Sciences, US Department of Energy. Ion irradiations performed
using the Environmental Molecular Sciences Laboratory (EMSL), a national
scientific user facility, which is sponsored at Pacific Northwest
National Laboratory by the Office of Biological and Environmental
Research, US Department of Energy. Thanks to Dr. D. Kumar and Dr. R.
Unocic, ORNL, for critiquing the manuscript:; This manuscript has been
authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with
the US Department of Energy. The United States Government retains and
the publisher, by accepting the article for publication, acknowledges
that the United States Government retains a non-exclusive, paid-up,
irrevocable, world-wide license to publish or reproduce the published
form of this manuscript, or allow others to do so, for United States
Government purposes.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2011
VL 418
IS 1-3
BP 106
EP 109
DI 10.1016/j.jnucmat.2011.07.035
PG 4
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 850XS
UT WOS:000297233500014
ER
PT J
AU Gao, F
Deng, HQ
Heinisch, HL
Kurtz, RJ
AF Gao, F.
Deng, Huiqiu
Heinisch, H. L.
Kurtz, R. J.
TI A new Fe-He interatomic potential based on ab initio calculations in
alpha-Fe
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATIONS; DEFECT PROPERTIES; HELIUM; IRON
AB A new interatomic potential for Fe-He interactions has been developed by fitting to the results obtained from ab initio calculations. Based on the electronic hybridization between Fe d-electrons and He s-electrons, an s-band model, along with a repulsive pair potential, has been developed to describe the Fe-He interaction. The atomic configurations and formation energies of single He defects and small interstitial He clusters are utilized in the fitting process. The binding properties and relative stabilities of the He-vacancy and interstitial He clusters are studied. The present Fe-He potential is also applied to study the emission of self-interstitial atoms from small He clusters in alpha-Fe matrices. It is found that the di-He cluster dissociates when the temperature is higher than 400 K, but the larger He clusters can create an interstitial Fe atom. The temperature for kicking out an interstitial Fe atom is found to decrease with increasing size of the He clusters. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Gao, F.; Deng, Huiqiu; Heinisch, H. L.; Kurtz, R. J.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Deng, Huiqiu] Hunan Univ, Dept Appl Phys, Changsha 410082, Hunan, Peoples R China.
RP Gao, F (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM fei.gao@pnl.gov
RI Gao, Fei/H-3045-2012; Deng, Huiqiu/A-9530-2009
OI Deng, Huiqiu/0000-0001-8986-104X
FU US Department of Energy, Office of Fusion Energy Sciences [DE-AC06-76RLO
1830]; Fundamental Research Funds for the Central Universities, Hunan
University
FX This research was supported by the US Department of Energy, Office of
Fusion Energy Sciences, under Contract DE-AC06-76RLO 1830. HQ also
thanks for the financial support partly from the Fundamental Research
Funds for the Central Universities, Hunan University.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2011
VL 418
IS 1-3
BP 115
EP 120
DI 10.1016/j.jnucmat.2011.06.008
PG 6
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 850XS
UT WOS:000297233500016
ER
PT J
AU Cockeram, BV
Smith, RW
Hashimoto, N
Snead, LL
AF Cockeram, B. V.
Smith, R. W.
Hashimoto, N.
Snead, L. L.
TI The swelling, microstructure, and hardening of wrought LCAC, TZM, and
ODS molybdenum following neutron irradiation
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID TITANIUM-0.1 PCT ZIRCONIUM; MO-5-PERCENT RE ALLOYS; CARBON ARC-CAST; 300
DEGREES-C; TENSILE PROPERTIES; NANOSTRUCTURED MATERIALS;
MECHANICAL-PROPERTIES; ANNEALED CONDITIONS; FRACTURE-TOUGHNESS;
REFRACTORY-METALS
AB TEM examinations and swelling measurements were performed on commercially available wrought Low Carbon Arc Cast (LCAC), La-oxide Oxide Dispersion Strengthened (ODS), and TZM molybdenum alloys following irradiation in the High Flux Isotope Reactor (HEIR) at 300 degrees C, 600 degrees C, and 900 degrees C to neutron fluences between 1.05 and 24.7 x 10(25) n/m(2) (E > 0.1 MeV), or 0.6-13.1 dpa. The defect structure, hardening, and swelling were shown to be strongly dependent on irradiation temperature and starting microstructure. Irradiation at 300 degrees C results in the formation of a high number density of fine loops and voids (similar to 1 nm) that produce significant hardening and low swelling that is comparable for all alloys. Irradiation at 600 degrees C-784 degrees C produces a high number density of larger voids (5-6 nm) that results in significant hardening with the highest swelling. A low number density of the largest void sizes (8-30 nm) are formed for the 900 degrees C irradiation that result in low hardening and less swelling than observed for the 600 degrees C irradiation. The fine grain size of ODS Mo results in a higher concentration of denuded zones along grain boundaries and improved ductile-laminate toughening that results in improved resistance to irradiation embrittlement for the 600 degrees C irradiations. Irradiation-induced formation of precipitates rich in transmutation products is observed at the highest dose, and it is likely that these features exert an influence on subsequent void growth. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Cockeram, B. V.; Smith, R. W.] Bechtel Marine Prop Corp Inc, W Mifflin, PA 15122 USA.
[Hashimoto, N.; Snead, L. L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Cockeram, BV (reprint author), Bechtel Marine Prop Corp Inc, POB 79, W Mifflin, PA 15122 USA.
EM bcockeram@verizon.net
RI HASHIMOTO, Naoyuki/D-6366-2012
FU USDOE [DE-AC-11-98PN38206]
FX This work was supported under USDOE Contract No. DE-AC-11-98PN38206. The
following ORNL personnel contributed to this work by completing the
irradiations, specimen preparation, and testing (M. M. Lee, J.P.
Strizak, T.S. Byun, A.L. Qualls, A.W. Williams, and J.L. Bailey). The
authors acknowledge D. Ward at Bettis for void size/number analysis and
J.E. Hack for numerous discussions on the results of this work.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2011
VL 418
IS 1-3
BP 121
EP 136
DI 10.1016/j.jnucmat.2011.05.055
PG 16
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 850XS
UT WOS:000297233500017
ER
PT J
AU Samolyuk, GD
Golubov, SI
Osetsky, YN
Stoller, RE
AF Samolyuk, G. D.
Golubov, S. I.
Osetsky, Y. N.
Stoller, R. E.
TI Molecular dynamics study of influence of vacancy types defects on
thermal conductivity of beta-SiC
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID SILICON-CARBIDE; NEUTRON-IRRADIATION; POINT-DEFECTS; TEMPERATURES;
SIMULATION; TRANSPORT
AB A molecular dynamics technique has been used to study the impact of single vacancies and small vacancy clusters/microvoids on thermal conductivity of Si and beta-SiC. It is found that single vacancies reduce thermal conductivity more significantly than do microvoids with the same total number of vacancies in the crystal. The vacancy concentration dependence of the relative change of thermal resistivity of both Si and SiC changes from linear at low concentrations to square-root at higher values. In contrast, the dependence on the volume fraction of microvoids switches from square-root at small swelling values to nearly linear dependence at higher swelling. In the case of SiC the results obtained for vacancies and microvoids agree reasonably well with experimental values. The computational results are compared with the commonly used Debye-Callaway model. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Samolyuk, G. D.; Golubov, S. I.; Osetsky, Y. N.; Stoller, R. E.] ORNL, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RP Samolyuk, GD (reprint author), ORNL, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
EM samolyukgd@ornl.gov
RI Stoller, Roger/H-4454-2011
FU U.S. Department of Energy
FX We are grateful to Drs. S.R. Phillpot, D. Singh, J.R. Morris and S.
Plimpton for useful discussion. This work was supported by the U.S.
Department of Energy Deep Burn Program, a research element of the
Advanced Fuel Effort of Fuels Cycles Research and Development.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2011
VL 418
IS 1-3
BP 174
EP 181
DI 10.1016/j.jnucmat.2011.06.036
PG 8
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 850XS
UT WOS:000297233500023
ER
PT J
AU Caro, A
Hetherly, J
Stukowski, A
Caro, M
Martinez, E
Srivilliputhur, S
Zepeda-Ruiz, L
Nastasi, M
AF Caro, A.
Hetherly, J.
Stukowski, A.
Caro, M.
Martinez, E.
Srivilliputhur, S.
Zepeda-Ruiz, L.
Nastasi, M.
TI Properties of Helium bubbles in Fe and FeCr alloys
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID EQUATION-OF-STATE; HIGH-PRESSURE PHASE; X-RAY-DIFFRACTION; CR ALLOYS;
INTERATOMIC POTENTIALS; MOLECULAR-DYNAMICS; SOLID HE-4; ALPHA-IRON;
AB-INITIO; BCC
AB We investigate three aspects of He that are relevant for its behavior in FeCr alloys. (i) the EOS of pure He, as an auxiliary element to relate pressure and density inside a bubble; (ii) He bubbles in FeCr alloys, to explore the influence of Cr as solute and at alpha' precipitates on the He precipitation behavior; (iii) the growth mechanism of a He bubble in Fe and Fe 15 at% Cr under the particular conditions of a He-rich and vacancy poor environment. This last case represents an extreme situation that reveals the maximum pressures that can be achieved by a bubble before the matrix yields. We observe the emission of interstitial dislocation loops as the mechanisms by which the bubble creates room to host the He atoms. We use molecular dynamics and Monte Carlo computer simulations based on a new ternary FeCr-He empirical potential, which is an extension of our previous composition-dependent model for FeCr (A. Caro et al., Phys. Rev. Lett. 95 (2005) 075702). (c) 2011 Elsevier B.V. All rights reserved.
C1 [Caro, A.; Hetherly, J.; Caro, M.; Martinez, E.; Nastasi, M.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
[Stukowski, A.; Zepeda-Ruiz, L.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Srivilliputhur, S.] Univ N Texas, Dept MS&E, Denton, TX 76203 USA.
RP Caro, A (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA.
EM caro@lanl.gov
RI Albe, Karsten/F-1139-2011;
OI Stukowski, Alexander/0000-0001-6750-3401; Martinez Saez,
Enrique/0000-0002-2690-2622
FU US Department of Energy at Los Alamos National Laboratory
[2008LANL1026]; Laboratory Directed Research and Development Program;
Center for Materials at Irradiation and Mechanical Extremes
FX The work of FeCr was performed with support from the Center for
Materials at Irradiation and Mechanical Extremes, an Energy Frontier
Research Center funded by the US Department of Energy (Award Number
2008LANL1026) at Los Alamos National Laboratory. The work on Fe was
performed with support from the Laboratory Directed Research and
Development Program.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2011
VL 418
IS 1-3
BP 261
EP 268
DI 10.1016/j.jnucmat.2011.07.010
PG 8
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 850XS
UT WOS:000297233500033
ER
PT J
AU Miller, MK
Hoelzer, DT
AF Miller, M. K.
Hoelzer, D. T.
TI Effect of neutron irradiation on nanoclusters in MA957 ferritic alloys
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID STEELS; STABILITY
AB The effects of neutron irradiation to a dose of 3 dpa at 600 degrees C and creep for 38,555 h at 800 degrees C on the microstructure of a commercial MA957 alloy were investigated by atom probe tomography. The size, number density and composition of the 2-nm-diameter Ti-, Y-, O-enriched nanoclusters were similar in the unirradiated, crept and neutron irradiated conditions indicating that the microstructure of this nanostructured ferritic alloy has remarkable tolerance to radiation damage. Published by Elsevier B.V.
C1 [Miller, M. K.; Hoelzer, D. T.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37871 USA.
RP Miller, MK (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, POB 2008, Oak Ridge, TN 37871 USA.
EM millermk@ornl.gov
RI Hoelzer, David/L-1558-2016
FU Materials Sciences and Engineering Division, Office of Basic Energy
Sciences, US Department of Energy; ORNL's Shared Research Equipment
(SHaRE) User Facility; Office of Basic Energy Sciences, US Department of
Energy; United States Government [DE-ACO5-000R22725]; United States
Department of Energy
FX This research was sponsored by the Materials Sciences and Engineering
Division, Office of Basic Energy Sciences, US Department of Energy. Atom
probe tomography (MKM) was supported by ORNL's Shared Research Equipment
(SHaRE) User Facility, which is sponsored by the Office of Basic Energy
Sciences, US Department of Energy.; This submission was sponsored by a
contractor of the United States Government under Contract
DE-ACO5-000R22725 with the United States Department of Energy. The
United States Government retains, and the publisher, by accepting this
submission for publication, acknowledges that the United States
Government retains, a nonexclusive, paid-up, irrevocable, worldwide
license to publish or reproduce the published form of this submission,
or allow others to do so, for United States Government purposes.
NR 25
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PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2011
VL 418
IS 1-3
BP 307
EP 310
DI 10.1016/j.jnucmat.2011.07.031
PG 4
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 850XS
UT WOS:000297233500038
ER
PT J
AU Muthiah, P
Hoppe, SM
Boyle, TJ
Sigmund, W
AF Muthiah, Palanikkumaran
Hoppe, Sarah M.
Boyle, Timothy J.
Sigmund, Wolfgang
TI Thermally Tunable Surface Wettability of Electrospun Fiber Mats:
Polystyrene/Poly(N-isopropylacrylamide) Blended versus Crosslinked
Poly[(N-isopropylacrylamide)-co-(methacrylic acid)]
SO MACROMOLECULAR RAPID COMMUNICATIONS
LA English
DT Article
DE electrospinning; fibers; responsive wettability; stimuli-sensitive
polymers; surface chemistry
ID (N-ISOPROPYLACRYLAMIDE)-CO-(METHACRYLIC ACID) HYDROGELS;
SUPERHYDROPHOBIC SURFACES; RESPONSIVE POLYMERS; BEHAVIOR
AB This work reports on thermally tunable surface wettability of electrospun fiber mats of: polystyrene (PS)/poly(N-isopropylacrylamide) (PNIPA) blended (bl-PS/PNIPA) and crosslinked poly[(N-isopropylacrylamide)-co-[methacrylic acid)] (PNIPAMAA) (xl-NIPAMAA). Both the bl-PS/PNIPA and xl-PNIPAMAA fiber mats demonstrate reversibly switchable surface wettability, with the bl-PS/PNIPA fiber mats approaching superhydrophobic >= 150 degrees and superhydrophilic contact angle (CA) values at extreme temperatures. Weight loss studies carried out at 10 degrees C indicate that the crosslinked PNIPAMAA fiber mats had better structural integrity than the bl-PS/PNIPA fiber mats. PNIPA surface chemistry and the Cassie-Baxter model were used to explain the mechanism behind the observed extreme wettability.
C1 [Muthiah, Palanikkumaran; Sigmund, Wolfgang] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA.
[Hoppe, Sarah M.; Boyle, Timothy J.] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA.
[Sigmund, Wolfgang] Hanyang Univ, WCU Dept Energy Engn, Seoul 133791, South Korea.
RP Sigmund, W (reprint author), Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA.
EM wsigm@mse.ufl.edu
FU Laboratory Directed Research and Development (LDRD); National Institute
for Nano Engineering (NINE) at Sandia National Laboratories; Sandia
Corporation, a Lockheed Martin Company [DE-AC04-94AL85000]
FX This work was supported by the Laboratory Directed Research and
Development (LDRD) and the National Institute for Nano Engineering
(NINE) program at Sandia National Laboratories. 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.
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PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1022-1336
J9 MACROMOL RAPID COMM
JI Macromol. Rapid Commun.
PD NOV 1
PY 2011
VL 32
IS 21
BP 1716
EP 1721
DI 10.1002/marc.201100373
PG 6
WC Polymer Science
SC Polymer Science
GA 851ZE
UT WOS:000297310600005
PM 21994211
ER
PT J
AU Lloyd-Davies, EJ
Romer, AK
Mehrtens, N
Hosmer, M
Davidson, M
Sabirli, K
Mann, RG
Hilton, M
Liddle, AR
Viana, PTP
Campbell, HC
Collins, CA
Dubois, EN
Freeman, P
Harrison, CD
Hoyle, B
Kay, ST
Kuwertz, E
Miller, CJ
Nichol, RC
Sahlen, M
Stanford, SA
Stott, JP
AF Lloyd-Davies, E. J.
Romer, A. Kathy
Mehrtens, Nicola
Hosmer, Mark
Davidson, Michael
Sabirli, Kivanc
Mann, Robert G.
Hilton, Matt
Liddle, Andrew R.
Viana, Pedro T. P.
Campbell, Heather C.
Collins, Chris A.
Dubois, E. Naomi
Freeman, Peter
Harrison, Craig D.
Hoyle, Ben
Kay, Scott T.
Kuwertz, Emma
Miller, Christopher J.
Nichol, Robert C.
Sahlen, Martin
Stanford, S. A.
Stott, John P.
TI The XMM Cluster Survey: X-ray analysis methodology
SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
LA English
DT Article
DE surveys; galaxies: clusters: intracluster medium; cosmology:
observations; X-rays: galaxies: clusters
ID DIGITAL SKY SURVEY; MASSIVE GALAXY CLUSTERS; N-LOG-S; MEDIUM-SENSITIVITY
SURVEY; ACTIVE GALACTIC NUCLEI; ECLIPTIC POLE SURVEY; BRIGHT SHARC
SURVEY; COSMOLOGICAL PARAMETERS; OBSERVED GROWTH; HIGH-REDSHIFT
AB The XMM Cluster Survey (XCS) is a serendipitous search for galaxy clusters using all publicly available data in the XMMNewton Science Archive. Its main aims are to measure cosmological parameters and trace the evolution of X-ray scaling relations. In this paper we describe the data processing methodology applied to the 5776 XMM observations used to construct the current XCS source catalogue. A total of 3675 > 4s cluster candidates with > 50 background-subtracted X-ray counts are extracted from a total non-overlapping area suitable for cluster searching of 410 deg2. Of these, 993 candidates are detected with > 300 background-subtracted X-ray photon counts, and we demonstrate that robust temperature measurements can be obtained down to this count limit. We describe in detail the automated pipelines used to perform the spectral and surface brightness fitting for these candidates, as well as to estimate redshifts from the X-ray data alone. A total of 587 (122) X-ray temperatures to a typical accuracy of < 40 (< 10) per cent have been measured to date. We also present the methodology adopted for determining the selection function of the survey, and show that the extended source detection algorithm is robust to a range of cluster morphologies by inserting mock clusters derived from hydrodynamical simulations into real XMMimages. These tests show that the simple isothermal beta-profiles is sufficient to capture the essential details of the cluster population detected in the archival XMM observations. The redshift follow-up of the XCS cluster sample is presented in a companion paper, together with a first data release of 503 optically confirmed clusters.
C1 [Lloyd-Davies, E. J.; Romer, A. Kathy; Mehrtens, Nicola; Hosmer, Mark; Liddle, Andrew R.; Campbell, Heather C.; Dubois, E. Naomi; Kuwertz, Emma] Univ Sussex, Ctr Astron, Brighton BN1 9QH, E Sussex, England.
[Davidson, Michael; Mann, Robert G.] Univ Edinburgh, Royal Observ, Inst Astron, SUPA, Edinburgh EH9 3HJ, Midlothian, Scotland.
[Sabirli, Kivanc] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA.
[Hilton, Matt] Univ KwaZulu Natal, Sch Math Sci, ZA-4000 Durban, South Africa.
[Hilton, Matt] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England.
[Viana, Pedro T. P.] Univ Porto, Ctr Astrofis, P-4150762 Oporto, Portugal.
[Viana, Pedro T. P.] Univ Porto, Fac Ciencias, Dept Fis & Astron, P-4169007 Oporto, Portugal.
[Campbell, Heather C.; Hoyle, Ben; Nichol, Robert C.] Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England.
[Collins, Chris A.; Stott, John P.] Liverpool John Moores Univ, Astrophys Res Inst, Birkenhead CH41 1LD, Merseyside, England.
[Freeman, Peter] Carnegie Mellon Univ, Dept Stat, Pittsburgh, PA 15213 USA.
[Harrison, Craig D.; Miller, Christopher J.] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA.
[Hoyle, Ben] Univ Barcelona, Dept Phys, Inst Sci Cosmos ICCUB IEEC, Barcelona 08024, Spain.
[Hoyle, Ben] CSIC, E-28006 Madrid, Spain.
[Hoyle, Ben] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland.
[Kay, Scott T.] Univ Manchester, Sch Phys & Astron, Jodrell Bank, Ctr Astrophys, Manchester M13 9PL, Lancs, England.
[Sahlen, Martin] Stockholm Univ, Dept Phys, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Stanford, S. A.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
[Stanford, S. A.] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94551 USA.
RP Lloyd-Davies, EJ (reprint author), Univ Sussex, Ctr Astron, Brighton BN1 9QH, E Sussex, England.
EM E.Lloyd-Davies@sussex.ac.uk
RI Hilton, Matthew James/N-5860-2013;
OI Viana, Pedro/0000-0003-1572-8531; hoyle, ben/0000-0002-2571-1357;
Sahlen, Martin/0000-0003-0973-4804
FU National Aeronautics and Space Administration; Centre National d'Etudes
Spatiales (CNES); Science and Technology Facilities Council (STFC)
[ST/F002858/1, ST/I000976/1]; RAS Hosie Bequest; University of
Edinburgh; Carnegie Mellon University; University of Sussex; University
of KwaZulu-Natal; Leverhulme Trust; Fundacao para a Ciencia e a
Tecnologia [PTDC/CTE-AST/64711/2006]; South East Physics Network
[FP7-PEOPLE-2007-4D3-IRG n 20218]; Swedish Research Council (VR) through
the Oskar Klein Centre for Cosmoparticle Physics; US Department of
Energy, National Nuclear Security Administration by the University of
California, Lawrence Livermore National Laboratory [W-7405-Eng-48];
[ST/H002391/1]; [PP/E001149/1]; [ST/G002592/1]
FX This work was made possible by the ESA XMM-Newton mission, and we thank
everyone who was involved in making that mission such a success. We also
acknowledge the following public archives, surveys and analysis tools.
The HEASOFT analysis packages provided by NASA's Goddard Space Flight
Center. The NASA/IPAC Extragalactic Data base (NED) which is operated by
the Jet Propulsion Laboratory, California Institute of Technology, under
contract with the National Aeronautics and Space Administration. The
X-Ray Clusters Data base (BAX) which is operated by the Laboratoire
d'Astrophysique de Tarbes-Toulouse (LATT), under contract with the
Centre National d'Etudes Spatiales (CNES).; Financial support for this
project includes the Science and Technology Facilities Council (STFC)
through grants ST/F002858/1 and/or ST/I000976/1 (for EJL-D, AKR, NM,
MHo, ARL and MS); ST/H002391/1 and PP/E001149/1 (for CAC and JPS);
ST/G002592/1 (for STK) and through studentships (for NM, HCC); the RAS
Hosie Bequest and the University of Edinburgh (for MD); Carnegie Mellon
University (KS); the University of Sussex (MHo, EK, HCC), the University
of KwaZulu-Natal (for MHi); The Leverhulme Trust (for MHi); Fundacao
para a Ciencia e a Tecnologia through the project
PTDC/CTE-AST/64711/2006 (for PTPV); The South East Physics Network (for
END, RCN); FP7-PEOPLE-2007-4D3-IRG n 20218 (for BH); the Swedish
Research Council (VR) through the Oskar Klein Centre for Cosmoparticle
Physics (for MS); and the US Department of Energy, National Nuclear
Security Administration by the University of California, Lawrence
Livermore National Laboratory under contract No. W-7405-Eng-48 (for
SAS).
NR 161
TC 37
Z9 37
U1 0
U2 2
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0035-8711
EI 1365-2966
J9 MON NOT R ASTRON SOC
JI Mon. Not. Roy. Astron. Soc.
PD NOV
PY 2011
VL 418
IS 1
BP 14
EP 53
DI 10.1111/j.1365-2966.2011.19117.x
PG 40
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 848IR
UT WOS:000297045700035
ER
PT J
AU Jajamovich, GH
Wang, XD
Arkin, AP
Samoilov, MS
AF Jajamovich, Guido H.
Wang, Xiaodong
Arkin, Adam P.
Samoilov, Michael S.
TI Bayesian multiple-instance motif discovery with BAMBI: inference of
recombinase and transcription factor binding sites
SO NUCLEIC ACIDS RESEARCH
LA English
DT Article
ID REGULATORY ELEMENTS; SEQUENCE MOTIFS; DNA; PROTEIN; IDENTIFICATION;
NETWORKS; GENES; TOOLS; MODEL; MEME
AB Finding conserved motifs in genomic sequences represents one of essential bioinformatic problems. However, achieving high discovery performance without imposing substantial auxiliary constraints on possible motif features remains a key algorithmic challenge. This work describes BAMBI-a sequential Monte Carlo motif-identification algorithm, which is based on a position weight matrix model that does not require additional constraints and is able to estimate such motif properties as length, logo, number of instances and their locations solely on the basis of primary nucleotide sequence data. Furthermore, should biologically meaningful information about motif attributes be available, BAMBI takes advantage of this knowledge to further refine the discovery results. In practical applications, we show that the proposed approach can be used to find sites of such diverse DNA-binding molecules as the cAMP receptor protein (CRP) and Din-family site-specific serine recombinases. Results obtained by BAMBI in these and other settings demonstrate better statistical performance than any of the four widely-used profile-based motif discovery methods: MEME, BioProspector with BioOptimizer, SeSiMCMC and Motif Sampler as measured by the nucleotide-level correlation coefficient. Additionally, in the case of Din-family recombinase target site discovery, the BAMBI-inferred motif is found to be the only one functionally accurate from the underlying biochemical mechanism standpoint. C++ and Matlab code is available at http://www.ee.columbia.edu/guido/BAMBI or http://genomics.lbl.gov/BAMBI/.
C1 [Jajamovich, Guido H.; Wang, Xiaodong] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA.
[Arkin, Adam P.; Samoilov, Michael S.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
[Arkin, Adam P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Wang, XD (reprint author), Columbia Univ, Dept Elect Engn, New York, NY 10027 USA.
EM xw2008@columbia.edu; mssamoilov@lbl.gov
RI Arkin, Adam/A-6751-2008;
OI Arkin, Adam/0000-0002-4999-2931; Samoilov, Michael/0000-0003-3559-5326
FU U S. National Science Foundation (NSF) [DBI-0850030, CMMI-1028112]; U.S.
Department of Energy, Office of Science, Office of Biological and
Environmental Research [DE-AC02-05CH11231]; Columbia Open-Access
Publication (COAP)
FX U S. National Science Foundation (NSF) (under grant DBI-0850030, in
part); U.S. National Science Foundation (NSF) (under grant CMMI-1028112
to X. W.); and ENIGMA-Ecosystems and Networks Integrated with Genes and
Molecular Assemblies supported by the U.S. Department of Energy, Office
of Science, Office of Biological and Environmental Research through
contract No. DE-AC02-05CH11231. Funding for open access charge: The
Columbia Open-Access Publication (COAP) Fund.
NR 35
TC 4
Z9 4
U1 1
U2 6
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0305-1048
J9 NUCLEIC ACIDS RES
JI Nucleic Acids Res.
PD NOV
PY 2011
VL 39
IS 21
AR e146
DI 10.1093/nar/gkr745
PG 11
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 852RR
UT WOS:000297375700006
PM 21948794
ER
PT J
AU Aaltonen, T
Gonzalez, BA
Amerio, S
Amidei, D
Anastassov, A
Annovi, A
Antos, J
Apollinari, G
Appel, JA
Apresyan, A
Arisawa, T
Artikov, A
Asaadi, J
Ashmanskas, W
Auerbach, B
Aurisano, A
Azfar, F
Badgett, W
Barbaro-Galtieri, A
Barnes, VE
Barnett, BA
Barria, P
Bartos, P
Bauce, M
Bauer, G
Bedeschi, F
Beecher, D
Behari, S
Bellettini, G
Bellinger, J
Benjamin, D
Bentivegna, M
Beretvas, A
Bhatti, A
Binkley, M
Bisello, D
Bizjak, I
Bland, KR
Blumenfeld, B
Bocci, A
Bodek, A
Bortoletto, D
Boudreau, J
Boveia, A
Brau, B
Brigliadori, L
Brisuda, A
Bromberg, C
Brucken, E
Bucciantonio, M
Budagov, J
Budd, HS
Budd, S
Burkett, K
Busetto, G
Bussey, P
Buzatu, A
Calancha, C
Camarda, S
Campanelli, M
Campbell, M
Canelli, F
Canepa, A
Carls, B
Carlsmith, D
Carosi, R
Carrillo, S
Carron, S
Casal, B
Casarsa, M
Castro, A
Catastini, P
Cauz, D
Cavaliere, V
Cavalli-Sforza, M
Cerri, A
Cerrito, L
Chen, YC
Chertok, M
Chiarelli, G
Chlachidze, G
Chlebana, F
Cho, K
Chokheli, D
Chou, JP
Chung, WH
Chung, YS
Ciobanu, CI
Ciocci, MA
Clark, A
Compostella, G
Convery, ME
Conway, J
Corbo, M
Cordelli, M
Cox, CA
Cox, DJ
Crescioli, F
Almenar, CC
Cuevas, J
Culbertson, R
Dagenhart, D
d'Ascenzo, N
Datta, M
de Barbaro, P
De Cecco, S
De Lorenzo, G
Dell'Orso, M
Deluca, C
Demortier, L
Deng, J
Deninno, M
Devoto, F
d'Errico, M
Di Canto, A
Di Ruzza, B
Dittmann, JR
D'Onofrio, M
Donati, S
Dong, P
Dorigo, M
Dorigo, T
Ebina, K
Elagin, A
Eppig, A
Erbacher, R
Errede, D
Errede, S
Ershaidat, N
Eusebi, R
Fang, HC
Farrington, S
Feindt, M
Fernandez, JP
Ferrazza, C
Field, R
Flanagan, G
Forrest, R
Frank, MJ
Franklin, M
Freeman, JC
Funakoshi, Y
Furic, I
Gallinaro, M
Galyardt, J
Garcia, JE
Garfinkel, AF
Garosi, P
Gerberich, H
Gerchtein, E
Giagu, S
Giakoumopoulou, V
Giannetti, P
Gibson, K
Ginsburg, CM
Giokaris, N
Giromini, P
Giunta, M
Giurgiu, G
Glagolev, V
Glenzinski, D
Gold, M
Goldin, D
Goldschmidt, N
Golossanov, A
Gomez, G
Gomez-Ceballos, G
Goncharov, M
Gonzalez, O
Gorelov, I
Goshaw, AT
Goulianos, K
Grinstein, S
Grosso-Pilcher, C
Group, RC
da Costa, JG
Gunay-Unalan, Z
Haber, C
Hahn, SR
Halkiadakis, E
Hamaguchi, A
Han, JY
Happacher, F
Hara, K
Hare, D
Hare, M
Harr, RF
Hatakeyama, K
Hays, C
Heck, M
Heinrich, J
Herndon, M
Hewamanage, S
Hidas, D
Hocker, A
Hopkins, W
Horn, D
Hou, S
Hughes, RE
Hurwitz, M
Husemann, U
Hussain, N
Hussein, M
Huston, J
Introzzi, G
Iori, M
Ivanov, A
James, E
Jang, D
Jayatilaka, B
Jeon, EJ
Jha, MK
Jindariani, S
Johnson, W
Jones, M
Joo, KK
Jun, SY
Junk, TR
Kamon, T
Karchin, PE
Kato, Y
Ketchum, W
Keung, J
Khotilovich, V
Kilminster, B
Kim, DH
Kim, HS
Kim, HW
Kim, JE
Kim, MJ
Kim, SB
Kim, SH
Kim, YK
Kimura, N
Kirby, M
Klimenko, S
Kondo, K
Kong, DJ
Konigsberg, J
Kotwal, AV
Kreps, M
Kroll, J
Krop, D
Krumnack, N
Kruse, M
Krutelyov, V
Kuhr, T
Kurata, M
Kwang, S
Laasanen, AT
Lami, S
Lammel, S
Lancaster, M
Lander, RL
Lannon, K
Lath, A
Latino, G
LeCompte, T
Lee, E
Lee, HS
Lee, JS
Lee, SW
Leo, S
Leone, S
Lewis, JD
Limosani, A
Lin, CJ
Linacre, J
Lindgren, M
Lipeles, E
Lister, A
Litvintsev, DO
Liu, C
Liu, Q
Liu, T
Lockwitz, S
Lockyer, NS
Loginov, A
Lucchesi, D
Lueck, J
Lujan, P
Lukens, P
Lungu, G
Lys, J
Lysak, R
Madrak, R
Maeshima, K
Makhoul, K
Maksimovic, P
Malik, S
Manca, G
Manousakis-Katsikakis, A
Margaroli, F
Marino, C
Martinez, M
Martinez-Ballarin, R
Mastrandrea, P
Mathis, M
Mattson, ME
Mazzanti, P
McFarland, KS
McIntyre, P
McNulty, R
Mehta, A
Mehtala, P
Menzione, A
Mesropian, C
Miao, T
Mietlicki, D
Mitra, A
Miyake, H
Moed, S
Moggi, N
Mondragon, MN
Moon, CS
Moore, R
Morello, MJ
Morlock, J
Fernandez, PM
Mukherjee, A
Muller, T
Murat, P
Mussini, M
Nachtman, J
Nagai, Y
Naganoma, J
Nakano, I
Napier, A
Nett, J
Neu, C
Neubauer, MS
Nielsen, J
Nodulman, L
Norniella, O
Nurse, E
Oakes, L
Oh, SH
Oh, YD
Oksuzian, I
Okusawa, T
Orava, R
Ortolan, L
Griso, SP
Pagliarone, C
Palencia, E
Papadimitriou, V
Paramonov, AA
Patrick, J
Pauletta, G
Paulini, M
Paus, C
Pellett, DE
Penzo, A
Phillips, TJ
Piacentino, G
Pianori, E
Pilot, J
Pitts, K
Plager, C
Pondrom, L
Potamianos, K
Poukhov, O
Prokoshin, F
Pronko, A
Ptohos, F
Pueschel, E
Punzi, G
Pursley, J
Rahaman, A
Ramakrishnan, V
Ranjan, N
Rao, K
Redondo, I
Renton, P
Rescigno, M
Rimondi, F
Ristori, L
Robson, A
Rodrigo, T
Rodriguez, T
Rogers, E
Rolli, S
Roser, R
Rossi, M
Rubbo, F
Ruffini, F
Ruiz, A
Russ, J
Rusu, V
Safonov, A
Sakumoto, WK
Sakurai, Y
Santi, L
Sartori, L
Sato, K
Saveliev, V
Savoy-Navarro, A
Schlabach, P
Schmidt, A
Schmidt, EE
Schmidt, MP
Schmitt, M
Schwarz, T
Scodellaro, L
Scribano, A
Scuri, F
Sedov, A
Seidel, S
Seiya, Y
Semenov, A
Sforza, F
Sfyrla, A
Shalhout, SZ
Shears, T
Shepard, PF
Shimojima, M
Shiraishi, S
Shochet, M
Shreyber, I
Simonenko, A
Sinervo, P
Sissakian, A
Sliwa, K
Smith, JR
Snider, FD
Soha, A
Somalwar, S
Sorin, V
Squillacioti, P
Stancari, M
Stanitzki, M
Denis, RS
Stelzer, B
Stelzer-Chilton, O
Stentz, D
Strologas, J
Strycker, GL
Sudo, Y
Sukhanov, A
Suslov, I
Takemasa, K
Takeuchi, Y
Tang, J
Tecchio, M
Teng, PK
Thom, J
Thome, J
Thompson, GA
Thomson, E
Ttito-Guzman, P
Tkaczyk, S
Toback, D
Tokar, S
Tollefson, K
Tomura, T
Tonelli, D
Torre, S
Torretta, D
Totaro, P
Trovato, M
Tu, Y
Ukegawa, F
Uozumi, S
Varganov, A
Vazquez, F
Velev, G
Vellidis, C
Vidal, M
Vila, I
Vilar, R
Vizan, J
Vogel, M
Volpi, G
Wagner, P
Wagner, RL
Wakisaka, T
Wallny, R
Wang, SM
Warburton, A
Waters, D
Weinberger, M
Wester, WC
Whitehouse, B
Whiteson, D
Wicklund, AB
Wicklund, E
Wilbur, S
Wick, F
Williams, HH
Wilson, JS
Wilson, P
Winer, BL
Wittich, P
Wolbers, S
Wolfe, H
Wright, T
Wu, X
Wu, Z
Yamamoto, K
Yamaoka, J
Yang, T
Yang, UK
Yang, YC
Yao, WM
Yeh, GP
Yi, K
Yoh, J
Yorita, K
Yoshida, T
Yu, GB
Yu, I
Yu, SS
Yun, JC
Zanetti, A
Zeng, Y
Zucchelli, S
AF Aaltonen, T.
Gonzalez, B. Alvarez
Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Apollinari, G.
Appel, J. A.
Apresyan, A.
Arisawa, T.
Artikov, A.
Asaadi, J.
Ashmanskas, W.
Auerbach, B.
Aurisano, A.
Azfar, F.
Badgett, W.
Barbaro-Galtieri, A.
Barnes, V. E.
Barnett, B. A.
Barria, P.
Bartos, P.
Bauce, M.
Bauer, G.
Bedeschi, F.
Beecher, D.
Behari, S.
Bellettini, G.
Bellinger, J.
Benjamin, D.
Bentivegna, M.
Beretvas, A.
Bhatti, A.
Binkley, M.
Bisello, D.
Bizjak, I.
Bland, K. R.
Blumenfeld, B.
Bocci, A.
Bodek, A.
Bortoletto, D.
Boudreau, J.
Boveia, A.
Brau, B.
Brigliadori, L.
Brisuda, A.
Bromberg, C.
Brucken, E.
Bucciantonio, M.
Budagov, J.
Budd, H. S.
Budd, S.
Burkett, K.
Busetto, G.
Bussey, P.
Buzatu, A.
Calancha, C.
Camarda, S.
Campanelli, M.
Campbell, M.
Canelli, F.
Canepa, A.
Carls, B.
Carlsmith, D.
Carosi, R.
Carrillo, S.
Carron, S.
Casal, B.
Casarsa, M.
Castro, A.
Catastini, P.
Cauz, D.
Cavaliere, V.
Cavalli-Sforza, M.
Cerri, A.
Cerrito, L.
Chen, Y. C.
Chertok, M.
Chiarelli, G.
Chlachidze, G.
Chlebana, F.
Cho, K.
Chokheli, D.
Chou, J. P.
Chung, W. H.
Chung, Y. S.
Ciobanu, C. I.
Ciocci, M. A.
Clark, A.
Compostella, G.
Convery, M. E.
Conway, J.
Corbo, M.
Cordelli, M.
Cox, C. A.
Cox, D. J.
Crescioli, F.
Almenar, C. Cuenca
Cuevas, J.
Culbertson, R.
Dagenhart, D.
d'Ascenzo, N.
Datta, M.
de Barbaro, P.
De Cecco, S.
De Lorenzo, G.
Dell'Orso, M.
Deluca, C.
Demortier, L.
Deng, J.
Deninno, M.
Devoto, F.
d'Errico, M.
Di Canto, A.
Di Ruzza, B.
Dittmann, J. R.
D'Onofrio, M.
Donati, S.
Dong, P.
Dorigo, M.
Dorigo, T.
Ebina, K.
Elagin, A.
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CA CDF Collaboration
TI Search for New T ' Particles in Final States with Large Jet
Multiplicities and Missing Transverse Energy in p(p)over-bar Collisions
at root s=1.96 TeV
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID PHYSICS
AB We present a search for a new particle T' decaying to a top quark via T' --> t + X, where X goes undetected. We use a data sample corresponding to 5.7 fb(-1) of integrated luminosity of p (p) over bar collisions with root s = 1.96 TeV, collected at Fermilab Tevatron by the CDF II detector. Our search for pair production of T' is focused on the hadronic decay channel, p (p) over bar --> T'(T') over bar --> t (t) over bar + X (X) over bar --> bq (q) over bar (b) over bar q (q) over bar + X (X) over bar. We interpret our results in terms of a model where T' is an exotic fourth generation quark and X is a dark matter particle. The data are consistent with standard model expectations. We set a limit on the generic production of T'(T') over bar --> t (t) over bar + X (X) over bar, excluding the fourth generation exotic quarks T' at 95% confidence level up to m(T') = 400 GeV/c(2) for m(X) <= 70 GeV/c(2).
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[Cauz, D.; Dorigo, M.; Pagliarone, C.; Pauletta, G.; Penzo, A.; Rossi, M.; Santi, L.; Zanetti, A.] Ist Nazl Fis Nucl Trieste Udine, I-34100 Trieste, Italy.
[Pauletta, G.; Santi, L.] Univ Trieste, I-33100 Udine, Italy.
[Hara, K.; Kim, S. H.; Kurata, M.; Miyake, H.; Nagai, Y.; Sato, K.; Shimojima, M.; Sudo, Y.; Takemasa, K.; Takeuchi, Y.; Tomura, T.; Ukegawa, F.] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan.
[Hare, M.; Napier, A.; Rolli, S.; Sliwa, K.; Whitehouse, B.] Tufts Univ, Medford, MA 02155 USA.
[Group, R. C.; Neu, C.; Oksuzian, I.] Univ Virginia, Charlottesville, VA 22906 USA.
[Arisawa, T.; Ebina, K.; Funakoshi, Y.; Kimura, N.; Kondo, K.; Naganoma, J.; Sakurai, Y.; Yorita, K.] Waseda Univ, Tokyo 169, Japan.
[Harr, R. F.; Karchin, P. E.; Mattson, M. E.] Wayne State Univ, Detroit, MI 48201 USA.
[Bellinger, J.; Carlsmith, D.; Chung, W. H.; Herndon, M.; Pondrom, L.; Pursley, J.; Ramakrishnan, V.] Univ Wisconsin, Madison, WI 53706 USA.
[Auerbach, B.; Almenar, C. Cuenca; Husemann, U.; Lockwitz, S.; Loginov, A.; Schmidt, M. P.; Stanitzki, M.] Yale Univ, New Haven, CT 06520 USA.
[Bedeschi, F.; Bellettini, G.] Ist Nazl Fis Nucl, I-56127 Pisa, Italy.
[Bellettini, G.] Univ Pisa, I-56127 Pisa, Italy.
RP Aaltonen, T (reprint author), Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland.
RI Martinez Ballarin, Roberto/K-9209-2015; Gorelov, Igor/J-9010-2015;
Prokoshin, Fedor/E-2795-2012; Canelli, Florencia/O-9693-2016; Ruiz,
Alberto/E-4473-2011; Moon, Chang-Seong/J-3619-2014; Scodellaro,
Luca/K-9091-2014; Grinstein, Sebastian/N-3988-2014; Paulini,
Manfred/N-7794-2014; Russ, James/P-3092-2014; unalan,
zeynep/C-6660-2015; Garcia, Jose /H-6339-2015; ciocci, maria agnese
/I-2153-2015; Cavalli-Sforza, Matteo/H-7102-2015; Chiarelli,
Giorgio/E-8953-2012; Introzzi, Gianluca/K-2497-2015; Piacentino,
Giovanni/K-3269-2015; Robson, Aidan/G-1087-2011; manca,
giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; De Cecco,
Sandro/B-1016-2012; Punzi, Giovanni/J-4947-2012; Zeng, Yu/C-1438-2013;
Annovi, Alberto/G-6028-2012; Ivanov, Andrew/A-7982-2013; St.Denis,
Richard/C-8997-2012; Warburton, Andreas/N-8028-2013; Kim,
Soo-Bong/B-7061-2014; Lysak, Roman/H-2995-2014; Liu,
Qiuguang/I-8258-2014
OI Martinez Ballarin, Roberto/0000-0003-0588-6720; Gorelov,
Igor/0000-0001-5570-0133; Prokoshin, Fedor/0000-0001-6389-5399; Canelli,
Florencia/0000-0001-6361-2117; Ruiz, Alberto/0000-0002-3639-0368; Moon,
Chang-Seong/0000-0001-8229-7829; Scodellaro, Luca/0000-0002-4974-8330;
Grinstein, Sebastian/0000-0002-6460-8694; Paulini,
Manfred/0000-0002-6714-5787; Russ, James/0000-0001-9856-9155; unalan,
zeynep/0000-0003-2570-7611; ciocci, maria agnese /0000-0003-0002-5462;
Chiarelli, Giorgio/0000-0001-9851-4816; Introzzi,
Gianluca/0000-0002-1314-2580; Piacentino, Giovanni/0000-0001-9884-2924;
Punzi, Giovanni/0000-0002-8346-9052; Annovi,
Alberto/0000-0002-4649-4398; Ivanov, Andrew/0000-0002-9270-5643;
Warburton, Andreas/0000-0002-2298-7315;
FU U.S. Department of Energy; National Science Foundation; Italian Istituto
Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports,
Science and Technology of Japan; Natural Sciences and Engineering
Research Council of Canada; National Science Council of the Republic of
China; Swiss National Science Foundation; A.P. Sloan Foundation;
Bundesministerium fur Bildung und Forschung, Germany; Korean World Class
University, the National Research Foundation of Korea; Science and
Technology Facilities Council; Royal Society, UK; Institut National de
Physique Nucleaire et Physique des Particules/CNRS; Russian Foundation
for Basic Research; Ministerio de Ciencia e Innovacion, Spain; Slovak RD
Agency; Academy of Finland; Australian Research Council (ARC)
FX We thank Johan Alwall and Matteo Cacciari for useful discussions. We
also thank the Fermilab staff and the technical staffs of the
participating institutions for their vital contributions. This work was
supported by the U.S. Department of Energy and National Science
Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the
Ministry of Education, Culture, Sports, Science and Technology of Japan;
the Natural Sciences and Engineering Research Council of Canada; the
National Science Council of the Republic of China; the Swiss National
Science Foundation; the A.P. Sloan Foundation; the Bundesministerium fur
Bildung und Forschung, Germany; the Korean World Class University
Program, the National Research Foundation of Korea; the Science and
Technology Facilities Council and the Royal Society, UK; the Institut
National de Physique Nucleaire et Physique des Particules/CNRS; the
Russian Foundation for Basic Research; the Ministerio de Ciencia e
Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D
Agency; the Academy of Finland; and the Australian Research Council
(ARC).
NR 27
TC 16
Z9 16
U1 2
U2 18
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD NOV 1
PY 2011
VL 107
IS 19
AR 191803
DI 10.1103/PhysRevLett.107.191803
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 847XC
UT WOS:000297005600004
PM 22181598
ER
PT J
AU Aaltonen, T
Gonzalez, BA
Amerio, S
Amidei, D
Anastassov, A
Annovi, A
Antos, J
Apollinari, G
Appel, JA
Apresyan, A
Arisawa, T
Artikov, A
Asaadi, J
Ashmanskas, W
Auerbach, B
Aurisano, A
Azfar, F
Badgett, W
Barbaro-Galtieri, A
Barnes, VE
Barnett, BA
Barria, P
Bartos, P
Bauce, M
Bauer, G
Bedeschi, F
Beecher, D
Behari, S
Bellettini, G
Bellinger, J
Benjamin, D
Beretvas, A
Bhatti, A
Binkley, M
Bisello, D
Bizjak, I
Bland, KR
Blumenfeld, B
Bocci, A
Bodek, A
Bortoletto, D
Boudreau, J
Boveia, A
Brigliadori, L
Brisuda, A
Bromberg, C
Brucken, E
Bucciantonio, M
Budagov, J
Budd, HS
Budd, S
Burkett, K
Busetto, G
Bussey, P
Buzatu, A
Calancha, C
Camarda, S
Campanelli, M
Campbell, M
Canelli, F
Carls, B
Carlsmith, D
Carosi, R
Carrillo, S
Carron, S
Casal, B
Casarsa, M
Castro, A
Catastini, P
Cauz, D
Cavaliere, V
Cavalli-Sforza, M
Cerri, A
Cerrito, L
Chen, YC
Chertok, M
Chiarelli, G
Chlachidze, G
Chlebana, F
Cho, K
Chokheli, D
Chou, JP
Chung, WH
Chung, YS
Ciobanu, CI
Ciocci, MA
Clark, A
Clarke, C
Compostella, G
Convery, ME
Conway, J
Corbo, M
Cordelli, M
Cox, CA
Cox, DJ
Crescioli, F
Almenar, CC
Cuevas, J
Culbertson, R
Dagenhart, D
d'Ascenzo, N
Datta, M
de Barbaro, P
de Cecco, S
de Lorenzo, G
Dell'Orso, M
Deluca, C
Demortier, L
Deng, J
Deninno, M
Devoto, F
d'Errico, M
Di Canto, A
Di Ruzza, B
Dittmann, JR
D'Onofrio, M
Donati, S
Dong, P
Dorigo, M
Dorigo, T
Ebina, K
Elagin, A
Eppig, A
Erbacher, R
Errede, D
Errede, S
Ershaidat, N
Eusebi, R
Fang, HC
Farrington, S
Feindt, M
Fernandez, JP
Ferrazza, C
Field, R
Flanagan, G
Forrest, R
Frank, MJ
Franklin, M
Freeman, JC
Funakoshi, Y
Furic, I
Gallinaro, M
Galyardt, J
Garcia, JE
Garfinkel, AF
Garosi, P
Gerberich, H
Gerchtein, E
Giagu, S
Giakoumopoulou, V
Giannetti, P
Gibson, K
Ginsburg, CM
Giokaris, N
Giromini, P
Giunta, M
Giurgiu, G
Glagolev, V
Glenzinski, D
Gold, M
Goldin, D
Goldschmidt, N
Golossanov, A
Gomez, G
Gomez-Ceballos, G
Goncharov, M
Gonzalez, O
Gorelov, I
Goshaw, AT
Goulianos, K
Grinstein, S
Grosso-Pilcher, C
Group, RC
da Costa, JG
Gunay-Unalan, Z
Haber, C
Hahn, SR
Halkiadakis, E
Hamaguchi, A
Han, JY
Happacher, F
Hara, K
Hare, D
Hare, M
Harr, RF
Hatakeyama, K
Hays, C
Heck, M
Heinrich, J
Herndon, M
Hewamanage, S
Hidas, D
Hocker, A
Hopkins, W
Horn, D
Hou, S
Hughes, RE
Hurwitz, M
Husemann, U
Hussain, N
Hussein, M
Huston, J
Introzzi, G
Iori, M
Ivanov, A
James, E
Jang, D
Jayatilaka, B
Jeon, EJ
Jha, MK
Jindariani, S
Johnson, W
Jones, M
Joo, KK
Jun, SY
Junk, TR
Kamon, T
Karchin, PE
Kasmi, A
Kato, Y
Ketchum, W
Keung, J
Khotilovich, V
Kilminster, B
Kim, DH
Kim, HS
Kim, HW
Kim, JE
Kim, MJ
Kim, SB
Kim, SH
Kim, YK
Kimura, N
Kirby, M
Klimenko, S
Kondo, K
Kong, DJ
Konigsberg, J
Kotwal, AV
Kreps, M
Kroll, J
Krop, D
Krumnack, N
Kruse, M
Krutelyov, V
Kuhr, T
Kurata, M
Kwang, S
Laasanen, AT
Lami, S
Lammel, S
Lancaster, M
Lander, RL
Lannon, K
Lath, A
Latino, G
LeCompte, T
Lee, E
Lee, HS
Lee, JS
Lee, SW
Leo, S
Leone, S
Lewis, JD
Limosani, A
Lin, CJ
Linacre, J
Lindgren, M
Lipeles, E
Lister, A
Litvintsev, DO
Liu, C
Liu, Q
Liu, T
Lockwitz, S
Loginov, A
Lucchesi, D
Lueck, J
Lujan, P
Lukens, P
Lungu, G
Lys, J
Lysak, R
Madrak, R
Maeshima, K
Makhoul, K
Malik, S
Manca, G
Manousakis-Katsikakis, A
Margaroli, F
Marino, C
Martinez, M
Martinez-Ballarin, R
Mastrandrea, P
Mattson, ME
Mazzanti, P
McFarland, KS
McIntyre, P
McNulty, R
Mehta, A
Mehtala, P
Menzione, A
Mesropian, C
Miao, T
Mietlicki, D
Mitra, A
Miyake, H
Moed, S
Moggi, N
Mondragon, MN
Moon, CS
Moore, R
Morello, MJ
Morlock, J
Fernandez, PM
Mukherjee, A
Muller, T
Murat, P
Mussini, M
Nachtman, J
Nagai, Y
Naganoma, J
Nakano, I
Napier, A
Nett, J
Neu, C
Neubauer, MS
Nielsen, J
Nodulman, L
Norniella, O
Nurse, E
Oakes, L
Oh, SH
Oh, YD
Oksuzian, I
Okusawa, T
Orava, R
Ortolan, L
Griso, SP
Pagliarone, C
Palencia, E
Papadimitriou, V
Paramonov, AA
Patrick, J
Pauletta, G
Paulini, M
Paus, C
Pellett, DE
Penzo, A
Phillips, TJ
Piacentino, G
Pianori, E
Pilot, J
Pitts, K
Plager, C
Pondrom, L
Potamianos, K
Poukhov, O
Prokoshin, F
Pronko, A
Ptohos, F
Pueschel, E
Punzi, G
Pursley, J
Rahaman, A
Ramakrishnan, V
Ranjan, N
Redondo, I
Renton, P
Rescigno, M
Riddick, T
Rimondi, F
Ristori, L
Robson, A
Rodrigo, T
Rodriguez, T
Rogers, E
Rolli, S
Roser, R
Rossi, M
Rubbo, F
Ruffini, F
Ruiz, A
Russ, J
Rusu, V
Safonov, A
Sakumoto, WK
Sakurai, Y
Santi, L
Sartori, L
Sato, K
Saveliev, V
Savoy-Navarro, A
Schlabach, P
Schmidt, A
Schmidt, EE
Schmidt, MP
Schmitt, M
Schwarz, T
Scodellaro, L
Scribano, A
Scuri, F
Sedov, A
Seidel, S
Seiya, Y
Semenov, A
Sforza, F
Sfyrla, A
Shalhout, SZ
Shears, T
Shepard, PF
Shimojima, M
Shiraishi, S
Shochet, M
Shreyber, I
Simonenko, A
Sinervo, P
Sissakian, A
Sliwa, K
Smith, JR
Snider, FD
Soha, A
Somalwar, S
Sorin, V
Sperka, D
Squillacioti, P
Stancari, M
Stanitzki, M
Denis, RS
Stelzer, B
Stelzer-Chilton, O
Stentz, D
Strologas, J
Strycker, GL
Sudo, Y
Sukhanov, A
Suslov, I
Takemasa, K
Takeuchi, Y
Tang, J
Tecchio, M
Teng, PK
Thom, J
Thome, J
Thompson, GA
Thomson, E
Ttito-Guzman, P
Tkaczyk, S
Toback, D
Tokar, S
Tollefson, K
Tomura, T
Tonelli, D
Torre, S
Torretta, D
Totaro, P
Trovato, M
Tu, Y
Ukegawa, F
Uozumi, S
Varganov, A
Vazquez, F
Velev, G
Vellidis, C
Vidal, M
Vila, I
Vilar, R
Vizan, J
Vogel, M
Volpi, G
Wagner, P
Wagner, RL
Wakisaka, T
Wallny, R
Wang, SM
Warburton, A
Waters, D
Weinberger, M
Wester, WC
Whitehouse, B
Whiteson, D
Wicklund, AB
Wicklund, E
Wilbur, S
Wick, F
Williams, HH
Wilson, JS
Wilson, P
Winer, BL
Wittich, P
Wolbers, S
Wolfe, H
Wright, T
Wu, X
Wu, Z
Yamamoto, K
Yamaoka, J
Yang, T
Yang, UK
Yang, YC
Yao, WM
Yeh, GP
Yi, K
Yoh, J
Yorita, K
Yoshida, T
Yu, GB
Yu, I
Yu, SS
Yun, JC
Zanetti, A
Zeng, Y
Zucchelli, S
AF Aaltonen, T.
Gonzalez, B. Alvarez
Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Apollinari, G.
Appel, J. A.
Apresyan, A.
Arisawa, T.
Artikov, A.
Asaadi, J.
Ashmanskas, W.
Auerbach, B.
Aurisano, A.
Azfar, F.
Badgett, W.
Barbaro-Galtieri, A.
Barnes, V. E.
Barnett, B. A.
Barria, P.
Bartos, P.
Bauce, M.
Bauer, G.
Bedeschi, F.
Beecher, D.
Behari, S.
Bellettini, G.
Bellinger, J.
Benjamin, D.
Beretvas, A.
Bhatti, A.
Binkley, M.
Bisello, D.
Bizjak, I.
Bland, K. R.
Blumenfeld, B.
Bocci, A.
Bodek, A.
Bortoletto, D.
Boudreau, J.
Boveia, A.
Brigliadori, L.
Brisuda, A.
Bromberg, C.
Brucken, E.
Bucciantonio, M.
Budagov, J.
Budd, H. S.
Budd, S.
Burkett, K.
Busetto, G.
Bussey, P.
Buzatu, A.
Calancha, C.
Camarda, S.
Campanelli, M.
Campbell, M.
Canelli, F.
Carls, B.
Carlsmith, D.
Carosi, R.
Carrillo, S.
Carron, S.
Casal, B.
Casarsa, M.
Castro, A.
Catastini, P.
Cauz, D.
Cavaliere, V.
Cavalli-Sforza, M.
Cerri, A.
Cerrito, L.
Chen, Y. C.
Chertok, M.
Chiarelli, G.
Chlachidze, G.
Chlebana, F.
Cho, K.
Chokheli, D.
Chou, J. P.
Chung, W. H.
Chung, Y. S.
Ciobanu, C. I.
Ciocci, M. A.
Clark, A.
Clarke, C.
Compostella, G.
Convery, M. E.
Conway, J.
Corbo, M.
Cordelli, M.
Cox, C. A.
Cox, D. J.
Crescioli, F.
Almenar, C. Cuenca
Cuevas, J.
Culbertson, R.
Dagenhart, D.
d'Ascenzo, N.
Datta, M.
de Barbaro, P.
de Cecco, S.
de Lorenzo, G.
Dell'Orso, M.
Deluca, C.
Demortier, L.
Deng, J.
Deninno, M.
Devoto, F.
d'Errico, M.
Di Canto, A.
Di Ruzza, B.
Dittmann, J. R.
D'Onofrio, M.
Donati, S.
Dong, P.
Dorigo, M.
Dorigo, T.
Ebina, K.
Elagin, A.
Eppig, A.
Erbacher, R.
Errede, D.
Errede, S.
Ershaidat, N.
Eusebi, R.
Fang, H. C.
Farrington, S.
Feindt, M.
Fernandez, J. P.
Ferrazza, C.
Field, R.
Flanagan, G.
Forrest, R.
Frank, M. J.
Franklin, M.
Freeman, J. C.
Funakoshi, Y.
Furic, I.
Gallinaro, M.
Galyardt, J.
Garcia, J. E.
Garfinkel, A. F.
Garosi, P.
Gerberich, H.
Gerchtein, E.
Giagu, S.
Giakoumopoulou, V.
Giannetti, P.
Gibson, K.
Ginsburg, C. M.
Giokaris, N.
Giromini, P.
Giunta, M.
Giurgiu, G.
Glagolev, V.
Glenzinski, D.
Gold, M.
Goldin, D.
Goldschmidt, N.
Golossanov, A.
Gomez, G.
Gomez-Ceballos, G.
Goncharov, M.
Gonzalez, O.
Gorelov, I.
Goshaw, A. T.
Goulianos, K.
Grinstein, S.
Grosso-Pilcher, C.
Group, R. C.
da Costa, J. Guimaraes
Gunay-Unalan, Z.
Haber, C.
Hahn, S. R.
Halkiadakis, E.
Hamaguchi, A.
Han, J. Y.
Happacher, F.
Hara, K.
Hare, D.
Hare, M.
Harr, R. F.
Hatakeyama, K.
Hays, C.
Heck, M.
Heinrich, J.
Herndon, M.
Hewamanage, S.
Hidas, D.
Hocker, A.
Hopkins, W.
Horn, D.
Hou, S.
Hughes, R. E.
Hurwitz, M.
Husemann, U.
Hussain, N.
Hussein, M.
Huston, J.
Introzzi, G.
Iori, M.
Ivanov, A.
James, E.
Jang, D.
Jayatilaka, B.
Jeon, E. J.
Jha, M. K.
Jindariani, S.
Johnson, W.
Jones, M.
Joo, K. K.
Jun, S. Y.
Junk, T. R.
Kamon, T.
Karchin, P. E.
Kasmi, A.
Kato, Y.
Ketchum, W.
Keung, J.
Khotilovich, V.
Kilminster, B.
Kim, D. H.
Kim, H. S.
Kim, H. W.
Kim, J. E.
Kim, M. J.
Kim, S. B.
Kim, S. H.
Kim, Y. K.
Kimura, N.
Kirby, M.
Klimenko, S.
Kondo, K.
Kong, D. J.
Konigsberg, J.
Kotwal, A. V.
Kreps, M.
Kroll, J.
Krop, D.
Krumnack, N.
Kruse, M.
Krutelyov, V.
Kuhr, T.
Kurata, M.
Kwang, S.
Laasanen, A. T.
Lami, S.
Lammel, S.
Lancaster, M.
Lander, R. L.
Lannon, K.
Lath, A.
Latino, G.
LeCompte, T.
Lee, E.
Lee, H. S.
Lee, J. S.
Lee, S. W.
Leo, S.
Leone, S.
Lewis, J. D.
Limosani, A.
Lin, C. -J.
Linacre, J.
Lindgren, M.
Lipeles, E.
Lister, A.
Litvintsev, D. O.
Liu, C.
Liu, Q.
Liu, T.
Lockwitz, S.
Loginov, A.
Lucchesi, D.
Lueck, J.
Lujan, P.
Lukens, P.
Lungu, G.
Lys, J.
Lysak, R.
Madrak, R.
Maeshima, K.
Makhoul, K.
Malik, S.
Manca, G.
Manousakis-Katsikakis, A.
Margaroli, F.
Marino, C.
Martinez, M.
Martinez-Ballarin, R.
Mastrandrea, P.
Mattson, M. E.
Mazzanti, P.
McFarland, K. S.
McIntyre, P.
McNulty, R.
Mehta, A.
Mehtala, P.
Menzione, A.
Mesropian, C.
Miao, T.
Mietlicki, D.
Mitra, A.
Miyake, H.
Moed, S.
Moggi, N.
Mondragon, M. N.
Moon, C. S.
Moore, R.
Morello, M. J.
Morlock, J.
Fernandez, P. Movilla
Mukherjee, A.
Muller, Th.
Murat, P.
Mussini, M.
Nachtman, J.
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TI Search for B-s(0) -> mu(+)mu(-) and B-0 -> mu(+)mu(-) Decays with CDF II
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
AB A search has been performed for B-s(0) --> mu(+)mu(-) and B-0 --> mu(+)mu(-) decays using 7 fb(-1) of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron collider. The observed number of B-0 candidates is consistent with background- only expectations and yields an upper limit on the branching fraction of B(B-0 --> mu(+)mu(-)) < 6.0 X 10(-9) at 95% confidence level. We observe an excess of B-s(0) candidates. The probability that the background processes alone could produce such an excess or larger is 0.27%. The probability that the combination of background and the expected standard model rate of B-s(0) --> mu(+)mu(-) could produce such an excess or larger is 1.9%. These data are used to determine B(B-s(0) --> mu(+)mu(-)) = (1.8(-0.9)(+1.1)) x 10(-8) and provide an upper limit of B(B-s(0) --> mu(+)mu(-)) < 4.0 x 10(-8) at 95% confidence level.
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RP Aaltonen, T (reprint author), Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
RI Prokoshin, Fedor/E-2795-2012; Canelli, Florencia/O-9693-2016; Paulini,
Manfred/N-7794-2014; Scodellaro, Luca/K-9091-2014; Grinstein,
Sebastian/N-3988-2014; Russ, James/P-3092-2014; unalan,
zeynep/C-6660-2015; Garcia, Jose /H-6339-2015; ciocci, maria agnese
/I-2153-2015; Cavalli-Sforza, Matteo/H-7102-2015; Chiarelli,
Giorgio/E-8953-2012; Introzzi, Gianluca/K-2497-2015; Piacentino,
Giovanni/K-3269-2015; Martinez Ballarin, Roberto/K-9209-2015; Gorelov,
Igor/J-9010-2015; De Cecco, Sandro/B-1016-2012; Robson,
Aidan/G-1087-2011; manca, giulia/I-9264-2012; Amerio,
Silvia/J-4605-2012; Punzi, Giovanni/J-4947-2012; Ruiz,
Alberto/E-4473-2011; Zeng, Yu/C-1438-2013; Annovi, Alberto/G-6028-2012;
Ivanov, Andrew/A-7982-2013; Warburton, Andreas/N-8028-2013; Kim,
Soo-Bong/B-7061-2014; Lysak, Roman/H-2995-2014; Moon,
Chang-Seong/J-3619-2014
OI iori, maurizio/0000-0002-6349-0380; Volpi, Guido/0000-0003-1058-8883;
Prokoshin, Fedor/0000-0001-6389-5399; Canelli,
Florencia/0000-0001-6361-2117; Paulini, Manfred/0000-0002-6714-5787;
Latino, Giuseppe/0000-0002-4098-3502; Casarsa,
Massimo/0000-0002-1353-8964; Simonenko, Alexander/0000-0001-6580-3638;
Lancaster, Mark/0000-0002-8872-7292; Scodellaro,
Luca/0000-0002-4974-8330; Grinstein, Sebastian/0000-0002-6460-8694;
Russ, James/0000-0001-9856-9155; unalan, zeynep/0000-0003-2570-7611;
ciocci, maria agnese /0000-0003-0002-5462; Chiarelli,
Giorgio/0000-0001-9851-4816; Introzzi, Gianluca/0000-0002-1314-2580;
Piacentino, Giovanni/0000-0001-9884-2924; Martinez Ballarin,
Roberto/0000-0003-0588-6720; Gorelov, Igor/0000-0001-5570-0133; Punzi,
Giovanni/0000-0002-8346-9052; Ruiz, Alberto/0000-0002-3639-0368; Annovi,
Alberto/0000-0002-4649-4398; Ivanov, Andrew/0000-0002-9270-5643;
Warburton, Andreas/0000-0002-2298-7315; Moon,
Chang-Seong/0000-0001-8229-7829
FU U.S. Department of Energy; National Science Foundation; Italian Istituto
Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports,
Science and Technology of Japan; Natural Sciences and Engineering
Research Council of Canada; National Science Council of the Republic of
China; Swiss National Science Foundation; A.P. Sloan Foundation;
Bundesministerium fur Bildung und Forschung, Germany; Korean World Class
University, National Research Foundation of Korea; Science and
Technology Facilities Council; Royal Society, UK; Institut National de
Physique Nucleaire et Physique des Particules/CNRS; Russian Foundation
for Basic Research; Ministerio de Ciencia e Innovacion, Spain; Slovak RD
Agency; Academy of Finland; Australian Research Council (ARC)
FX We thank the Fermilab staff and the technical staffs of the
participating institutions for their vital contributions. This work was
supported by the U.S. Department of Energy and National Science
Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the
Ministry of Education, Culture, Sports, Science and Technology of Japan;
the Natural Sciences and Engineering Research Council of Canada; the
National Science Council of the Republic of China; the Swiss National
Science Foundation; the A.P. Sloan Foundation; the Bundesministerium fur
Bildung und Forschung, Germany; the Korean World Class University
Program, the National Research Foundation of Korea; the Science and
Technology Facilities Council and the Royal Society, UK; the Institut
National de Physique Nucleaire et Physique des Particules/CNRS; the
Russian Foundation for Basic Research; the Ministerio de Ciencia e
Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D
Agency; the Academy of Finland; and the Australian Research Council
(ARC).
NR 24
TC 48
Z9 48
U1 2
U2 24
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD NOV 1
PY 2011
VL 107
IS 19
AR 191801
DI 10.1103/PhysRevLett.107.191801
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 847XC
UT WOS:000297005600002
ER
PT J
AU Chatrchyan, S
Khachatryan, V
Sirunyan, AM
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Ero, J
Fabjan, C
Friedl, M
Fruhwirth, R
Ghete, VM
Hammer, J
Hansel, S
Hoch, M
Hormann, N
Hrubec, J
Jeitler, M
Kiesenhofer, W
Krammer, M
Liko, D
Mikulec, I
Pernicka, M
Rahbaran, B
Rohringer, H
Schofbeck, R
Strauss, J
Taurok, A
Teischinger, F
Trauner, C
Wagner, P
Waltenberger, W
Walzel, G
Widl, E
Wulz, CE
Mossolov, V
Shumeiko, N
Gonzalez, JS
Bansal, S
Benucci, L
De Wolf, EA
Janssen, X
Luyckx, S
Maes, T
Mucibello, L
Ochesanu, S
Roland, B
Rougny, R
Selvaggi, M
Van Haevermaet, H
Van Mechelen, P
Van Remortel, N
Blekman, F
Blyweert, S
D'Hondt, J
Suarez, RG
Kalogeropoulos, A
Maes, M
Olbrechts, A
Van Doninck, W
Van Mulders, P
Van Onsem, GP
Villella, I
Charaf, O
Clerbaux, B
De Lentdecker, G
Dero, V
Gay, APR
Hammad, GH
Hreus, T
Marage, PE
Raval, A
Thomas, L
Marcken, GV
Velde, CV
Vanlaer, P
Adler, V
Cimmino, A
Costantini, S
Grunewald, M
Klein, B
Lellouch, J
Marinov, A
Mccartin, J
Ryckbosch, D
Thyssen, F
Tytgat, M
Vanelderen, L
Verwilligen, P
Walsh, S
Zaganidis, N
Basegmez, S
Bruno, G
Caudron, J
Ceard, L
Gil, EC
De Jeneret, JD
Delaere, C
Favart, D
Giammanco, A
Gregoire, G
Hollar, J
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Caebergs, T
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Brito, L
Damiao, DD
Pol, ME
Souza, MHG
Alda, WL
Carvalho, W
Da Costa, EM
Martins, CD
De Souza, S
Figueiredo, DM
Mundim, L
Nogima, H
Oguri, V
Da Silva, WLP
Santoro, A
Do Amaral, SMS
Sznajder, A
Bernardes, CA
Dias, FA
Costa, TD
Tomei, TRFP
Gregores, EM
Lagana, C
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Mercadante, PG
Novaes, SF
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Litov, L
Mateev, M
Pavlov, B
Petkov, P
Bian, JG
Chen, GM
Chen, HS
Jiang, CH
Liang, D
Liang, S
Meng, X
Tao, J
Wang, J
Wang, J
Wang, X
Wang, Z
Xiao, H
Xu, M
Zang, J
Zhang, Z
Ban, Y
Guo, S
Guo, Y
Li, W
Mao, Y
Qian, SJ
Teng, H
Zhu, B
Zou, W
Cabrera, A
Moreno, BG
Rios, AAO
Oliveros, AFO
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Lelas, D
Lelas, K
Plestina, R
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Antunovic, Z
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Finger, M
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Mahmoud, MA
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Tiko, A
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Harkonen, J
Heikkinen, A
Heikkinen, A
Karimaki, V
Kinnunen, R
Kortelainen, MJ
Lampen, T
Lassila-Perini, K
Lehti, S
Linden, T
Luukka, P
Maenpaa, T
Tuominen, E
Tuominiemi, J
Tuovinen, E
Ungaro, D
Wendland, L
Banzuzi, K
Karjalainen, A
Korpela, A
Tuuva, T
Sillou, D
Besancon, M
Choudhury, S
Dejardin, M
Denegri, D
Fabbro, B
Faure, JL
Ferri, F
Ganjour, S
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Givernaud, A
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de Monchenault, GH
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El Mamouni, H
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Schael, S
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Weber, M
Wittmer, B
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Erdmann, M
Hebbeker, T
Heidemann, C
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Meyer, A
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Reithler, H
Schmitz, SA
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Cherepanov, V
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Ahmad, WH
Heydhausen, D
Hoehle, F
Kargoll, B
Kress, T
Kuessel, Y
Linn, A
Nowack, A
Perchalla, L
Pooth, O
Rennefeld, J
Sauerland, P
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Zoeller, MH
Martin, MA
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Chuang, SH
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Sanchez, FJM
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Rodriguez-Marrero, AY
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CA CMS Collaboration
TI Search for B-s(0) -> mu(+)mu(-) and B-0 -> mu(+)mu(-) Decays in pp
Collisions at root s=7 TeV
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID SIMULATION
AB A search for the rare decays B-s(0) --> mu(+)mu(-) and B-0 --> mu(+)mu(-) is performed in pp collisions at root s = 7 TeV, with a data sample corresponding to an integrated luminosity of 1.14 fb(-1), collected by the CMS experiment at the LHC. In both cases, the number of events observed after all selection requirements is consistent with expectations from background and standard-model signal predictions. The resulting upper limits on the branching fractions are B(B-s(0) --> mu(+)mu(-)) < 1.9 x 10(-8) and B(B-0 --> mu(+)mu(-)) < 4.6 x 10(-9), at 95% confidence level.
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[Charaf, O.; Clerbaux, B.; De Lentdecker, G.; Dero, V.; Gay, A. P. R.; Hammad, G. H.; Hreus, T.; Marage, P. E.; Raval, A.; Thomas, L.; Marcken, G. Vander; Velde, C. Vander; Vanlaer, P.] Univ Libre Brussels, Brussels, Belgium.
[Adler, V.; Cimmino, A.; Costantini, S.; Grunewald, M.; Klein, B.; Lellouch, J.; Marinov, A.; Mccartin, J.; Ryckbosch, D.; Thyssen, F.; Tytgat, M.; Vanelderen, L.; Verwilligen, P.; Walsh, S.; Zaganidis, N.] Univ Ghent, B-9000 Ghent, Belgium.
[Basegmez, S.; Bruno, G.; Caudron, J.; Ceard, L.; Gil, E. Cortina; De Jeneret, J. De Favereau; Delaere, C.; Favart, D.; Giammanco, A.; Gregoire, G.; Hollar, J.; Lemaitre, V.; Liao, J.; Militaru, O.; Nuttens, C.; Ovyn, S.; Pagano, D.; Pin, A.; Piotrzkowski, K.; Schul, N.] Catholic Univ Louvain, B-3000 Louvain, Belgium.
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[Barth, C.; Bauer, J.; Berger, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Katkov, I.; Komaragiri, J. R.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Ratnikova, N.; Renz, M.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. -P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Weiler, T.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany.
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[Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Saoulidou, N.; Stiliaris, E.; Sphicas, P.] Univ Athens, Athens, Greece.
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[Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary.
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[De Cosa, A.; Merola, M.] Univ Naples Federico II, Naples, Italy.
[Lazzizzera, I.] Univ Trento, Padua, Italy.
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[Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy.
[Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Romeo, F.; Valdata, M.] Univ Perugia, I-06100 Perugia, Italy.
[Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Palmonari, F.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy.
[Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy.
[Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy.
[Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Meridiani, P.; Nourbakhsh, S.; Organtini, G.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.; Sigamani, M.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy.
[Barone, L.; Del Re, D.; Di Marco, E.; Franci, D.; Longo, E.; Organtini, G.; Rahatlou, S.] Univ Roma La Sapienza, Rome, Italy.
[Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Maselli, S.; Migliore, E.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Potenza, A.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Migliore, E.; Monaco, V.; Pelliccioni, M.; Potenza, A.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.] Univ Turin, Turin, Italy.
[Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy.
[Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Marone, M.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy.
[Della Ricca, G.; Marone, M.; Montanino, D.] Univ Trieste, Trieste, Italy.
[Heo, S. G.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea.
[Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D. C.; Son, T.] Kyungpook Natl Univ, Taegu, South Korea.
[Kim, J. Y.; Kim, Zero J.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea.
[Jo, H. Y.] Konkuk Univ, Seoul, South Korea.
[Choi, S.; Gyun, D.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Seo, E.; Sim, K. S.] Korea Univ, Seoul, South Korea.
[Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea.
[Cho, Y.; Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Lee, B.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea.
[Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Polujanskas, M.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania.
[Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de la Cruz, I.; Lopez-Fernandez, R.; Magana Villalba, R.; Martinez-Ortega, J.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico.
[Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico.
[Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico.
[Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico.
[Krofcheck, D.; Tam, J.] Univ Auckland, Auckland 1, New Zealand.
[Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand.
[Ahmad, M.; Ahmed, I.; Ansari, M. H.; Asghar, M. I.; Hoorani, H. R.; Khalid, S.; Khan, W. A.; Khurshid, T.; Qazi, S.; Shah, M. A.; Shoaib, M.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan.
[Brona, G.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Fac Phys, Inst Expt Phys, Warsaw, Poland.
[Bluj, M.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.; Topakli, H.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland.
[Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Musella, P.; Nayak, A.; Pela, J.; Ribeiro, P. Q.; Seixas, J.; Varela, J.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal.
[Afanasiev, S.; Belotelov, I.; Bunin, P.; Gavrilenko, M.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia.
[Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.] Petersburg Nucl Phys Inst, St Petersburg, Russia.
[Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia.
[Epshteyn, V.; Erofeeva, M.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Katkov, I.; Zhukov, V.; Belyaev, A.; Boos, E.; Dubinin, M.; Dudko, L.; Gribushin, A.; Klyukhin, V.; Kodolova, O.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.; Demir, D.] Moscow MV Lomonosov State Univ, Moscow, Russia.
[Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Mesyats, G.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow, Russia.
[Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] State Res Ctr Russian Federat, Inst High Energy Phys, Protvino, Russia.
[Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.] Vinca Inst Nucl Sci, Belgrade, Serbia.
[Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia.
[Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Peris, A.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] CIEMAT, E-28040 Madrid, Spain.
[Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain.
[Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain.
[Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain.
[Darmenov, N.; Genchev, V.; Iaydjiev, P.; Jung, H.; Hajdu, C.; Mohanty, A. K.; De Filippis, N.; Chiorboli, M.; Tropiano, A.; Benaglia, A.; De Guio, F.; Di Matteo, L.; Gennai, S.; Ghezzi, A.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli; Montoya, A. Carrillo; Iorio, A. O. M.; Nespolo, M.; Perrozzi, L.; Lucaroni, A.; Taroni, S.; Tonelli, G.; Venturi, A.; Grassi, M.; Pandolfi, F.; Botta, C.; Graziano, A.; Gallinaro, M.; Pela, J.; Kossov, M.; Grishin, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Bona, M.; Breuker, H.; Bunkowski, K.; Camporesi, T.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; Cure, B.; D'Enterria, D.; De Roeck, A.; Di Guida, S.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guida, R.; Guiducci, L.; Hansen, M.; Hartl, C.; Harvey, J.; Hegeman, J.; Hegner, B.; Hoffmann, H. F.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Lecoq, P.; Lourenco, C.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Maurisset, A.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Cortezon, E. Palencia; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimia, M.; Piparo, D.; Polese, G.; Quertenmont, L.; Racz, A.; Reece, W.; Antunes, J. Rodrigues; Rolandi, G.; Rommerskirchen, T.; Rovelli, C.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Silva, P.; Simon, M.; Sphicas, P.; Spiga, D.; Spiropulu, M.; Stoye, M.; Tsirou, A.; Vichoudis, P.; Woehri, H. K.; Worm, S. D.; Zeuner, W. D.; Kovalskyi, D.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
[Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Caminada, L.; Marchica, C.; Naegeli, C.] Paul Scherrer Inst, Villigen, Switzerland.
[Baeni, L.; Bortignon, P.; Caminada, L.; Casal, B.; Chanon, N.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; Del Arbol, P. Martinez Ruiz; Milenovic, P.; Moortgat, F.; Naegeli, C.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Starodumov, A.; Stieger, B.; Takahashi, M.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.] ETH, Inst Particle Phys, Zurich, Switzerland.
[Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Jaeger, A.; Mejias, B. Millan; Otiougova, P.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland.
[Chang, Y. H.; Chen, K. H.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Volpe, R.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan.
[Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wan, X.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan.
[Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Hos, I.; Kangal, E. E.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.] Cukurova Univ, Adana, Turkey.
[Akin, I. V.; Aliev, T.; Bilin, B.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yalvac, M.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey.
[Deliomeroglu, M.; Demir, D.; Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozbek, M.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey.
[Levchuk, L.] Kharkov Inst Phys & Technol, Natl Sci Ctr, Kharkov, Ukraine.
[Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.] Univ Bristol, Bristol, Avon, England.
[Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; MacEvoy, B. C.; Magnan, A. -M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England.
[Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England.
[Hatakeyama, K.; Liu, H.] Baylor Univ, Waco, TX 76798 USA.
[Henderson, C.] Univ Alabama, Tuscaloosa, AL USA.
[Bose, T.; Jarrin, E. Carrera; Fantasia, C.; Heister, A.; John, J. St.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA.
[Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Luk, M.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA.
[Breedon, R.; Breto, G.; Sanchez, M. Calderon De la Barca; Chauhan, S.; Chertok, M.; Conway, J.; Conway, R.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Rutherford, B.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA.
[Felcini, M.; Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA.
[Babb, J.; Chandra, A.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Liu, H.; Long, O. R.; Luthra, A.; Nguyen, H.; Paramesvaran, S.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA.
[Andrews, W.; Branson, J. G.; Cerati, G. B.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Sudano, E.; Tadel, M.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wuerthwein, F.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Mullin, E.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.; West, C.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA.
[Dias, F. A.; Dubinin, M.; Rovelli, C.; Spiropulu, M.; Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Shin, K.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA.
[Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA.
[Agostino, L.; Alexander, J.; Chatterjee, A.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Henriksson, K.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Liu, Y.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Saelim, M.; Salvati, E.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA.
[Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA.
[Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Cooper, W.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Pivarski, J.; Pordes, R.; Prokofyev, O.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Piedra Gomez, J.; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Das, S.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Goldberg, S.; Hugon, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Low, J. F.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Myeonghun, P.; Prescott, C.; Remington, R.; Rinkevicius, A.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Snowball, M.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA.
[Gaultney, V.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA.
[Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA.
[Baarmand, M. M.; Dorney, B.; Hohlmann, M.; Kalakhety, H.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA.
[Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Kunde, G. J.; Lacroix, F.; Malek, M.; O'Brien, C.; Silkworth, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL USA.
[Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA.
[Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA.
[Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Kenny, R. P., III; Murray, M.; Noonan, D.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA.
[Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA.
[Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Velicanu, D.; Wenger, E. A.; Wolf, R.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA.
[Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Franzoni, G.; Gude, A.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Pastika, N.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.; Tambe, N.; Turkewitz, J.] Univ Minnesota, Minneapolis, MN USA.
[Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.; Adair, A.] Univ Mississippi, University, MS 38677 USA.
[Baur, U.; Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Reucroft, S.; Swain, J.; Trocino, D.; Wood, D.; Zhang, J.; Anastassov, A.] Northeastern Univ, Boston, MA 02115 USA.
[Kubik, A.; Mucia, N.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA.
[Antonelli, L.; Berry, D.; Brinkerhoff, A.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Vuosalo, C.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA.
[Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Safdi, B.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA.
[Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA.
[Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; De Mattia, M.; Everett, A.; Garfinkel, A. F.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA.
[Guragain, S.; Parashar, N.] Purdue Univ Calumet, Hammond, IN USA.
[Adair, A.; Boulahouache, C.; Ecklund, K. M.; Geurts, F. J. M.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA.
[Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Sakumoto, W.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY USA.
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[Arora, S.; Atramentov, O.; Barker, A.; Contreras-Campana, C.; Contreras-Campana, E.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Richards, A.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ USA.
[Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN USA.
[Eusebi, R.; Flanagan, W.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Osipenkov, I.; Pakhotin, Y.; Safonov, A.; Sengupta, S.; Suarez, I.; Tatarinov, A.; Toback, D.] Texas A&M Univ, College Stn, TX USA.
[Akchurin, N.; Bardak, C.; Damgov, J.; Dudero, P. R.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Libeiro, T.; Mane, P.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA.
[Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Issah, M.; Johns, W.; Johnston, C.; Kurt, P.; Maguire, C.; Melo, A.; Sheldon, P.; Snook, B.; Tuo, S.; Velkovska, J.] Vanderbilt Univ, Nashville, TN USA.
[Arenton, M. W.; Balazs, M.; Boutle, S.; Cox, B.; Francis, B.; Goadhouse, S.; Goodell, J.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Wood, J.; Yohay, R.] Univ Virginia, Charlottesville, VA USA.
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[Bernardes, C. A.; Dos Anjos Costa, T.; Gregores, E. M.; Mercadante, P. G.; Rolandi, G.] Univ Fed ABC, Santo Andre, Brazil.
[Khalil, S.; Caminada, L.; Marchica, C.; Naegeli, C.] British Univ, Cairo, Egypt.
[Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt.
[Radi, A.] Ain Shams Univ, Cairo, Egypt.
[Agram, J. -L.; Conte, E.; Drouhin, F.; Fontaine, J. -C.; Karim, M.] Univ Haute Alsace, Mulhouse, France.
[Bergholz, M.; Lange, W.; Schmidt, R.] Brandenburg Tech Univ Cottbus, Cottbus, Germany.
[Krajczar, K.; Sikler, F.; Veres, G. I.; Vesztergombi, G.] Eotvos Lorand Univ, Budapest, Hungary.
[Maity, M.] Visva Bharati Univ, Santini Ketan, W Bengal, India.
[Bakhshiansohi, H.; Fahim, A.; Jafari, A.] Sharif Univ Technol, Tehran, Iran.
[Etesami, S. M.; Zeinali, M.] Isfahan Univ Technol, Esfahan, Iran.
[Mohammadi, A.] Shiraz Univ, Shiraz, Iran.
[Bianco, S.] Univ Rome, Fac Ingn, Rome, Italy.
[Cavallo, N.; Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy.
[Martini, L.] Univ Siena, I-53100 Siena, Italy.
[Bell, A. J.] Univ Geneva, Geneva, Switzerland.
[Bakirci, M. N.; Topakli, H.] Gaziosmanpasa Univ, Tokat, Turkey.
[Cerci, S.; Cerci, D. Sunar; Tali, B.] Adiyaman Univ, Adiyaman, Turkey.
[Ozturk, S.] Univ Iowa, Iowa City, IA USA.
[Sogut, K.] Mersin Univ, Mersin, Turkey.
[Demir, D.] Izmir Inst Technol, Izmir, Turkey.
[Kaya, M.; Kaya, O.] Kafkas Univ, Kars, Turkey.
[Ozkorucuklu, S.] Suleyman Demirel Univ, TR-32200 Isparta, Turkey.
[Sonmez, N.] Ege Univ, Izmir, Turkey.
[Basso, L.; Belyaev, A.] Univ Southampton, Sch Phys & Astron, Southampton, Hants, England.
[Mermerkaya, H.] Erzincan Univ, Erzincan, Turkey.
RP Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
RI Boos, Eduard/D-9748-2012; Snigirev, Alexander/D-8912-2012; Tomei,
Thiago/E-7091-2012; Focardi, Ettore/E-7376-2012; Raidal,
Martti/F-4436-2012; Novaes, Sergio/D-3532-2012; Padula, Sandra
/G-3560-2012; Fruhwirth, Rudolf/H-2529-2012; Torassa, Ezio/I-1788-2012;
Giacomelli, Paolo/B-8076-2009; Jeitler, Manfred/H-3106-2012; Venturi,
Andrea/J-1877-2012; de Jesus Damiao, Dilson/G-6218-2012; Montanari,
Alessandro/J-2420-2012; Amapane, Nicola/J-3683-2012; tosi,
mia/J-5777-2012; Klyukhin, Vyacheslav/D-6850-2012; Petrushanko,
Sergey/D-6880-2012; Stahl, Achim/E-8846-2011; Mercadante,
Pedro/K-1918-2012; Della Ricca, Giuseppe/B-6826-2013; Kadastik,
Mario/B-7559-2008; Mundim, Luiz/A-1291-2012; Santaolalla,
Javier/C-3094-2013; Alves, Gilvan/C-4007-2013; Menasce, Dario
Livio/A-2168-2016; Bargassa, Pedrame/O-2417-2016; Vilela Pereira,
Antonio/L-4142-2016; Sznajder, Andre/L-1621-2016; Haj Ahmad,
Wael/E-6738-2016; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Goh,
Junghwan/Q-3720-2016; Govoni, Pietro/K-9619-2016; Tuominen,
Eija/A-5288-2017; Yazgan, Efe/C-4521-2014; Gerbaudo, Davide/J-4536-2012;
Leonidov, Andrey/M-4440-2013; Andreev, Vladimir/M-8665-2015; Cakir,
Altan/P-1024-2015; TUVE', Cristina/P-3933-2015; KIM, Tae
Jeong/P-7848-2015; Arce, Pedro/L-1268-2014; Flix, Josep/G-5414-2012;
Ozdemir, Kadri/P-8058-2014; Azarkin, Maxim/N-2578-2015; Paganoni,
Marco/A-4235-2016; Kirakosyan, Martin/N-2701-2015; Gulmez,
Erhan/P-9518-2015; Seixas, Joao/F-5441-2013; Lazzizzera,
Ignazio/E-9678-2015; Sen, Sercan/C-6473-2014; D'Alessandro,
Raffaello/F-5897-2015; Belyaev, Alexander/F-6637-2015; Trocsanyi,
Zoltan/A-5598-2009; Konecki, Marcin/G-4164-2015; Hernandez Calama, Jose
Maria/H-9127-2015; Bedoya, Cristina/K-8066-2014; Matorras,
Francisco/I-4983-2015; My, Salvatore/I-5160-2015; Dremin,
Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Russ, James/P-3092-2014;
Calderon, Alicia/K-3658-2014; Cerrada, Marcos/J-6934-2014; Calvo
Alamillo, Enrique/L-1203-2014; Gribushin, Andrei/J-4225-2012; de la
Cruz, Begona/K-7552-2014; Josa, Isabel/K-5184-2014; Dahms,
Torsten/A-8453-2015; Grandi, Claudio/B-5654-2015; Leonidov,
Andrey/P-3197-2014; Bernardes, Cesar Augusto/D-2408-2015; Ahmed,
Ijaz/E-9144-2015; Azzi, Patrizia/H-5404-2012; Scodellaro,
Luca/K-9091-2014; Paulini, Manfred/N-7794-2014; Vogel,
Helmut/N-8882-2014; Marinho, Franciole/N-8101-2014; Ferguson,
Thomas/O-3444-2014; Ragazzi, Stefano/D-2463-2009; Benussi,
Luigi/O-9684-2014; Wulz, Claudia-Elisabeth/H-5657-2011; Chen,
Jie/H-6210-2011; Yang, Fan/B-2755-2012; buotempo, salvatore/B-5210-2012;
Krammer, Manfred/A-6508-2010; Tinoco Mendes, Andre David/D-4314-2011;
Savrin, Victor/D-6213-2012; Lokhtin, Igor/D-7004-2012; Kodolova,
Olga/D-7158-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012;
Belyaev, Andrey/E-1540-2012; Katkov, Igor/E-2627-2012; Rolandi, Luigi
(Gigi)/E-8563-2013; Zalewski, Piotr/H-7335-2013; Ivanov,
Andrew/A-7982-2013; Markina, Anastasia/E-3390-2012; Troitsky,
Sergey/C-1377-2014; Marlow, Daniel/C-9132-2014; Oguri,
Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Bartalini,
Paolo/E-2512-2014; Codispoti, Giuseppe/F-6574-2014; Sguazzoni,
Giacomo/J-4620-2015; Ligabue, Franco/F-3432-2014; Fassi,
Farida/F-3571-2016; Varela, Joao/K-4829-2016
OI Tomei, Thiago/0000-0002-1809-5226; Focardi, Ettore/0000-0002-3763-5267;
Novaes, Sergio/0000-0003-0471-8549; de Jesus Damiao,
Dilson/0000-0002-3769-1680; Montanari, Alessandro/0000-0003-2748-6373;
Amapane, Nicola/0000-0001-9449-2509; Klyukhin,
Vyacheslav/0000-0002-8577-6531; Stahl, Achim/0000-0002-8369-7506; Della
Ricca, Giuseppe/0000-0003-2831-6982; Mundim, Luiz/0000-0001-9964-7805;
Bean, Alice/0000-0001-5967-8674; Longo, Egidio/0000-0001-6238-6787; Di
Matteo, Leonardo/0000-0001-6698-1735; Baarmand,
Marc/0000-0002-9792-8619; Boccali, Tommaso/0000-0002-9930-9299; Menasce,
Dario Livio/0000-0002-9918-1686; Bargassa, Pedrame/0000-0001-8612-3332;
Attia Mahmoud, Mohammed/0000-0001-8692-5458; Bilki,
Burak/0000-0001-9515-3306; Vilela Pereira, Antonio/0000-0003-3177-4626;
Sznajder, Andre/0000-0001-6998-1108; Haj Ahmad,
Wael/0000-0003-1491-0446; Xie, Si/0000-0003-2509-5731; Leonardo,
Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni,
Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan,
Efe/0000-0001-5732-7950; Gerbaudo, Davide/0000-0002-4463-0878; Vieira de
Castro Ferreira da Silva, Pedro Manuel/0000-0002-5725-041X; TUVE',
Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Arce,
Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047; Ozdemir,
Kadri/0000-0002-0103-1488; Paganoni, Marco/0000-0003-2461-275X; Gulmez,
Erhan/0000-0002-6353-518X; Seixas, Joao/0000-0002-7531-0842; Lazzizzera,
Ignazio/0000-0001-5092-7531; Sen, Sercan/0000-0001-7325-1087;
D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev,
Alexander/0000-0002-1733-4408; Trocsanyi, Zoltan/0000-0002-2129-1279;
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Stefano/0000-0001-8219-2074; Benussi, Luigi/0000-0002-2363-8889; Wulz,
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Manfred/0000-0003-2257-7751; Tinoco Mendes, Andre
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Igor/0000-0003-3064-0466; Rolandi, Luigi (Gigi)/0000-0002-0635-274X;
Ivanov, Andrew/0000-0002-9270-5643; Troitsky,
Sergey/0000-0001-6917-6600; Codispoti, Giuseppe/0000-0003-0217-7021;
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Lara/0000-0002-0157-4765; Carrera, Edgar/0000-0002-0857-8507; Sguazzoni,
Giacomo/0000-0002-0791-3350; Ligabue, Franco/0000-0002-1549-7107;
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Rita/0000-0002-5071-5501; Fassi, Farida/0000-0002-6423-7213; Heredia De
La Cruz, Ivan/0000-0002-8133-6467; Ghezzi, Alessio/0000-0002-8184-7953;
bianco, stefano/0000-0002-8300-4124; Demaria,
Natale/0000-0003-0743-9465; Benaglia, Andrea Davide/0000-0003-1124-8450;
Covarelli, Roberto/0000-0003-1216-5235; Ciulli,
Vitaliano/0000-0003-1947-3396; Martelli, Arabella/0000-0003-3530-2255;
Gonzi, Sandro/0000-0003-4754-645X; Levchenko, Petr/0000-0003-4913-0538;
Varela, Joao/0000-0003-2613-3146
FU FMSR (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES
(Brazil); FAPERJ (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN; CAS
(China); MoST (China); NSFC (China); COLCIENCIAS (Colombia); MSES
(Croatia); RPF (Cyprus); Academy of Sciences (Estonia); NICPB (Estonia);
Academy of Finland (Finland); MEC (Finland); HIP (Finland); CEA
(France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF
(Germany); GSRT (Greece); OTKA (Hungary); NKTH (Hungary); DAE (India);
DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); WCU
(Korea); LAS (Lithuania); CINVESTAV (Mexico); CONACYT (Mexico); SEP
(Mexico); UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); SCSR
(Poland); FCT (Portugal); JINR (Armenia); JINR (Belarus); JINR
(Georgia); JINR (Ukraine); JINR (Uzbekistan); MST (Russia); MAE
(Russia); RFBR (Russia); MSTD (Serbia); MICINN (Spain); CPAN (Spain);
Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK (Turkey);
TAEK (Turkey); STFC (United Kingdom); DOE (U.S.); NSF (U.S.)
FX We wish to congratulate our colleagues in the CERN accelerator
departments for the excellent performance of the LHC machine. We thank
the technical and administrative staff at CERN and other CMS institutes,
and acknowledge support from FMSR (Austria); FNRS and FWO (Belgium);
CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS,
MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF
(Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland,
MEC, and HIP (Finland); CEA andCNRS/IN2P3 (France); BMBF, DFG, and HGF
(Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India);
IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS
(Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MSI (New
Zealand); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia,
Belarus, Georgia, Ukraine, Uzbekistan); MST, MAE and RFBR (Russia); MSTD
(Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland);
NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and
NSF (U.S.).
NR 17
TC 48
Z9 48
U1 2
U2 57
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD NOV 1
PY 2011
VL 107
IS 19
AR 191802
DI 10.1103/PhysRevLett.107.191802
PG 15
WC Physics, Multidisciplinary
SC Physics
GA 847XC
UT WOS:000297005600003
PM 22181597
ER
PT J
AU Deutschbauer, A
Price, MN
Wetmore, KM
Shao, WJ
Baumohl, JK
Xu, ZC
Nguyen, M
Tamse, R
Davis, RW
Arkin, AP
AF Deutschbauer, Adam
Price, Morgan N.
Wetmore, Kelly M.
Shao, Wenjun
Baumohl, Jason K.
Xu, Zhuchen
Michelle Nguyen
Tamse, Raquel
Davis, Ronald W.
Arkin, Adam P.
TI Evidence-Based Annotation of Gene Function in Shewanella oneidensis MR-1
Using Genome-Wide Fitness Profiling across 121 Conditions
SO PLOS GENETICS
LA English
DT Article
ID TRANSPOSON MUTANT LIBRARY; ESCHERICHIA-COLI; HIGH-THROUGHPUT;
SACCHAROMYCES-CEREVISIAE; ANTIBIOTIC-RESISTANCE; ANAEROBIC RESPIRATION;
MANGANESE REDUCTION; INSERTION MUTANTS; DELETION MUTANTS; SYSTEMS
BIOLOGY
AB Most genes in bacteria are experimentally uncharacterized and cannot be annotated with a specific function. Given the great diversity of bacteria and the ease of genome sequencing, high-throughput approaches to identify gene function experimentally are needed. Here, we use pools of tagged transposon mutants in the metal-reducing bacterium Shewanella oneidensis MR-1 to probe the mutant fitness of 3,355 genes in 121 diverse conditions including different growth substrates, alternative electron acceptors, stresses, and motility. We find that 2,350 genes have a pattern of fitness that is significantly different from random and 1,230 of these genes (37% of our total assayed genes) have enough signal to show strong biological correlations. We find that genes in all functional categories have phenotypes, including hundreds of hypotheticals, and that potentially redundant genes (over 50% amino acid identity to another gene in the genome) are also likely to have distinct phenotypes. Using fitness patterns, we were able to propose specific molecular functions for 40 genes or operons that lacked specific annotations or had incomplete annotations. In one example, we demonstrate that the previously hypothetical gene SO_3749 encodes a functional acetylornithine deacetylase, thus filling a missing step in S. oneidensis metabolism. Additionally, we demonstrate that the orphan histidine kinase SO_2742 and orphan response regulator SO_2648 form a signal transduction pathway that activates expression of acetyl-CoA synthase and is required for S. oneidensis to grow on acetate as a carbon source. Lastly, we demonstrate that gene expression and mutant fitness are poorly correlated and that mutant fitness generates more confident predictions of gene function than does gene expression. The approach described here can be applied generally to create large-scale gene-phenotype maps for evidence-based annotation of gene function in prokaryotes.
C1 [Deutschbauer, Adam; Price, Morgan N.; Shao, Wenjun; Baumohl, Jason K.; Arkin, Adam P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Wetmore, Kelly M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Xu, Zhuchen; Arkin, Adam P.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
[Michelle Nguyen; Tamse, Raquel; Davis, Ronald W.] Stanford Univ, Dept Biochem, Stanford Genome Technol Ctr, Stanford, CA 94305 USA.
RP Deutschbauer, A (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
EM APArkin@lbl.gov
RI Arkin, Adam/A-6751-2008
OI Arkin, Adam/0000-0002-4999-2931
FU Office of Science, Office of Biological and Environmental Research, of
the U.S. Department of Energy [DE-AC02-05CH11231]
FX This work conducted by ENIGMA (Ecosystems and Networks Integrated with
Genes and Molecular Assemblies) was supported by the Office of Science,
Office of Biological and Environmental Research, of the U.S. Department
of Energy under Contract No. DE-AC02-05CH11231. The funders had no role
in study design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 80
TC 45
Z9 1550
U1 4
U2 53
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1553-7404
J9 PLOS GENET
JI PLoS Genet.
PD NOV
PY 2011
VL 7
IS 11
AR e1002385
DI 10.1371/journal.pgen.1002385
PG 17
WC Genetics & Heredity
SC Genetics & Heredity
GA 851JM
UT WOS:000297264500035
PM 22125499
ER
PT J
AU Jansik, DP
Wildenschild, D
Rosenberg, ND
AF Jansik, D. P.
Wildenschild, D.
Rosenberg, N. D.
TI Flow Processes in the Dry Regime: The Effect on Capillary Barrier
Performance
SO VADOSE ZONE JOURNAL
LA English
DT Article
ID WATER-VAPOR DIFFUSION; POROUS-MEDIA; HYDRAULIC CONDUCTIVITY; FRACTURE
SURFACES; FILM FLOW; ADSORPTION; SOIL; CONDENSATION; ENHANCEMENT;
POTENTIALS
AB Engineered capillary barriers typically consist of two layers of granular materials designed so that the contrast in material hydraulic properties and sloping interface retain infiltrating water in the upper layer. We conducted two benchtop capillary barrier experiments, followed by interpretation and numerical modeling. The hydraulic parameters for two coarse materials were measured using standard methods, and we found that the materials had similar hydraulic properties despite being morphologically different (round vs. angular). The round sand provided a better functioning capillary barrier than the angular sand, but neither experiment could be characterized as a perfectly working capillary barrier. In both cases, >93% of the infiltrating water was successfully diverted from the lower layer; however, infiltration into the underlying layer was observed in both systems. Based on this work, we believe that noncontinuum processes such as vapor diffusion and film flow contribute to the observed phenomena and are important aspects to consider with respect to capillary barrier design as well as dry vadose zone processes in general. Using a theoretical film flow equation that incorporates the surface geometry of the porous material, we found that infiltration into the coarse underlying sand layer appeared to be dominated by water film flow. The NUFT (Nonisothermal Unsaturated-Saturated Flow and Transport) model was used for qualitative comparison simulations. We were able to reproduce the barrier breach observed in the experiments using targeted parameter adjustment, by which pseudo-film flow was successfully simulated.
C1 [Jansik, D. P.; Wildenschild, D.] Oregon State Univ, Sch Chem Biol & Environm Engn, Corvallis, OR 97331 USA.
[Rosenberg, N. D.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Jansik, D. P.] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
RP Jansik, DP (reprint author), Oregon State Univ, Sch Chem Biol & Environm Engn, 102 Gleeson Hall, Corvallis, OR 97331 USA.
EM danielle.jansik@pnnl.gov
OI Wildenschild, Dorthe/0000-0002-6504-7817
FU U.S. Department of Energy (DOE) by the University of California,
Lawrence Livermore National Laboratory [W-7405-Eng-48]; DOE; Oregon
State University Subsurface Biosphere NSF IGERT; Oregon State
University, Institute for Water and Watersheds
FX This work was performed under the auspices of the U.S. Department of
Energy (DOE) by the University of California, Lawrence Livermore
National Laboratory, under Contract no. W-7405-Eng-48 and was funded by
the DOE. Additional funding was provided by Oregon State University
Subsurface Biosphere NSF IGERT program and Oregon State University,
Institute for Water and Watersheds Graduate Student Research Grant.
Special thanks to Gaurav Saini for his assistance with obtaining surface
profiles of the sands, and to Ida L. Fabricius, Dep. of Environmental
Engineering, Danish Technical University, for help with acquisition and
interpretation of the BET data.
NR 43
TC 1
Z9 1
U1 2
U2 17
PU SOIL SCI SOC AMER
PI MADISON
PA 677 SOUTH SEGOE ROAD, MADISON, WI 53711 USA
SN 1539-1663
J9 VADOSE ZONE J
JI Vadose Zone J.
PD NOV
PY 2011
VL 10
IS 4
BP 1173
EP 1184
DI 10.2136/vzj2010.0128
PG 12
WC Environmental Sciences; Soil Science; Water Resources
SC Environmental Sciences & Ecology; Agriculture; Water Resources
GA 852SE
UT WOS:000297377000005
ER
PT J
AU Zhang, ZF
AF Zhang, Z. Fred
TI Soil Water Retention and Relative Permeability for Conditions from
Oven-Dry to Full Saturation
SO VADOSE ZONE JOURNAL
LA English
DT Article
ID HYDRAULIC CONDUCTIVITY; UNSATURATED SOILS; POROUS-MEDIA; EQUATION;
DRYNESS; FORCES; CURVES; MODEL
AB Common conceptual models for unsaturated flow assume that the matric potential is attributed to the capillary force only. These models are successful at high and medium water contents but often give poor results at low water contents. The lower bound of existing water retention functions and conductivity models was extended from residual water content to the oven-dry condition (i.e., zero water content) by defining a state-dependent residual water content for a soil drier than a critical value. The advantages of the extended water retention functions include not refitting the retention parameters from the unextended model, its reduction to the unextended form when the soil is wetter than the critical value, and its compatibility with existing relative permeability models. In addition, a hydraulic conductivity model for film flow in a medium of smooth uniform spheres was modified by introducing a correction factor to describe the film flow-induced hydraulic conductivity for natural porous media. The total unsaturated hydraulic conductivity is the sum of those due to capillary and film flow; it smoothly transits between capillary-dominated flow and film-dominated flow over the full range of water content. The film flow is insignificant when the soil is wetter than the critical water content, and, vice versa, the capillary flow is insignificant when the soil is drier than the critical water content. The extended retention and conductivity models were tested with measurements. Results show that, when the soil is at high and intermediate water content, there is no difference between the unextended and the extended models as defined by the theory. When the soil is at low water content, the unextended models overestimate the water content but underestimate the conductivity. The extended models match the retention and conductivity measurements well.
C1 Pacific NW Natl Lab, Hydrol Grp, Richland, WA 99352 USA.
RP Zhang, ZF (reprint author), Pacific NW Natl Lab, Hydrol Grp, MSIN K9-33,POB 999,902 Battelle Blvd, Richland, WA 99352 USA.
EM fred.zhang@pnl.gov
OI Zhang, Fred/0000-0001-8676-6426
FU CH2M HILL Plateau Remediation Company; U.S. Department of Energy by
Battelle [DE-AC05-76RL01830]
FX Funding for this work was provided by the CH2M HILL Plateau Remediation
Company's Remediation Decision Support project. Pacific Northwest
National Laboratory is operated for the U.S. Department of Energy by
Battelle under Contract DE-AC05-76RL01830.
NR 26
TC 15
Z9 15
U1 2
U2 21
PU SOIL SCI SOC AMER
PI MADISON
PA 677 SOUTH SEGOE ROAD, MADISON, WI 53711 USA
SN 1539-1663
J9 VADOSE ZONE J
JI Vadose Zone J.
PD NOV
PY 2011
VL 10
IS 4
BP 1299
EP 1308
DI 10.2136/vzj2011.0019
PG 10
WC Environmental Sciences; Soil Science; Water Resources
SC Environmental Sciences & Ecology; Agriculture; Water Resources
GA 852SE
UT WOS:000297377000015
ER
PT J
AU Hains, AW
Chen, HY
Reilly, TH
Gregg, BA
AF Hains, Alexander W.
Chen, Hsiang-Yu
Reilly, Thomas H., III
Gregg, Brian A.
TI Cross-Linked Perylene Diimide-Based n-Type Interfacial Layer for
Inverted Organic Photovoltaic Devices
SO ACS APPLIED MATERIALS & INTERFACES
LA English
DT Article
DE organic photovoltaics; solar cells; organic electronics; interfacial
layer; inverted architecture
ID HETEROJUNCTION SOLAR-CELLS; LIGHT-EMITTING-DIODES; INDIUM-TIN-OXIDE;
TRANSPORT LAYERS; THIN-FILMS; POLYMER; EFFICIENCY; PERFORMANCE;
ELECTRONICS; MORPHOLOGY
AB This contribution describes the synthesis and characterization of a perylene diimide (PDI)-based n-type semiconductor and its application to organic photovoltaic (OPV) devices having inverted architecture. Films of N,N'-bis(3-trimethoxysilylpropyl)-1,6,7,12-tetrachloroperylene-3,4,9,10-tetracarboxyldiimide (Cl(4)PSi(2)) and blends of this material with various polymers are solution-deposited on tin-doped indium oxide (ITO) substrates as interfacial layers (IFLs). The organic IFL described in this work is based on the air- and light-stable PDI core, annealed at low temperatures compatible with flexible substrates, and crosslinks in air for compatibility with device fabrication. Morphological, optical, and electrochemical analysis of these IFL films demonstrate predominantly smooth surfaces and HOMO and LUMO energies of similar to 4.5 and 7.0 eV, respectively, which are ideal for accepting electrons and blocking holes in inverted devices. A cationic silane species is added to the Cl(4)PSi(2) at an optimum similar to 2-5 wt% to reduce IFL series resistance and enhance device performance. Also, a short light soaking procedure is necessary for completed devices to achieve high fill factors in current density voltage analysis, a phenomenon previously only observed for inverted devices having an n-type inorganic IFL.
C1 [Hains, Alexander W.; Chen, Hsiang-Yu; Reilly, Thomas H., III; Gregg, Brian A.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Hains, AW (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
EM ahains@mldevices.com; brian.gregg@nrel.gov
FU U. S. Department of Energy, Office of Science, Basic Energy Science,
Division of Chemical Sciences, Geosciences, and Biosciences
[DE-AC36-08GO28308]
FX We thank Dr. B. To for assistance with AFM measurements and Dr. R.
Cormier for helpful discussions. This work was funded by the U. S.
Department of Energy, Office of Science, Basic Energy Science, Division
of Chemical Sciences, Geosciences, and Biosciences, under Contract
DE-AC36-08GO28308 to NREL.
NR 56
TC 21
Z9 21
U1 10
U2 70
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1944-8244
J9 ACS APPL MATER INTER
JI ACS Appl. Mater. Interfaces
PD NOV
PY 2011
VL 3
IS 11
BP 4381
EP 4387
DI 10.1021/am201027j
PG 7
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 850LG
UT WOS:000297195500032
PM 22059439
ER
PT J
AU Leblebici, SY
Catane, L
Barclay, DE
Olson, T
Chen, TL
Ma, BW
AF Leblebici, Sibel Y.
Catane, Luis
Barclay, David E.
Olson, Tara
Chen, Teresa L.
Ma, Biwu
TI Near-Infrared Azadipyrromethenes as Electron Donor for Efficient Planar
Heterojunction Organic Solar Cells
SO ACS APPLIED MATERIALS & INTERFACES
LA English
DT Article
DE organic solar cells; near-infrared dyes; azadipyrromethenes; solution
processable; planar heterojunction
ID PHOTOVOLTAIC CELLS; FLUORESCENT; OLIGOTHIOPHENES; INTERFACE; PLATFORM;
BODIPY; DYES
AB We report the use of three solution processable azadipyrromethene (ADPM) based compounds, i.e., ADPM, BtF2-chelated ADPM (BF2-ADPM), and B,O-chelated ADPM (BO-ADPM), as electron donors in planar hetero-junction solar cells. These small molecules possess exceptional light harvesting capability with high extinction coefficients (similar to 1 x 10(5) M-1 cm(-1) in solutions) and broad absorption spectra up into the near-infrared region. Planar heterojunction organic solar cells, consisting of a solution processed electron donor layer and a vapor deposited C-60 acceptor layer, have been constructed to give power conversion efficiencies of 0.56, 0.69, and 2.63% for ADPM, BF2-ADPM, and BO-ADPM, respectively, under AM 1.5G simulated 1 sun solar illumination. A high open circuit voltage (V-oc) of similar to 0.8 V was achieved for the BO-ADPM/C-60 device, which is among the highest reported values for organic solar cells with photocurrent generation in the near-infrared region beyond 1.5 eV.
C1 [Leblebici, Sibel Y.; Catane, Luis; Barclay, David E.; Olson, Tara; Chen, Teresa L.; Ma, Biwu] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Ma, BW (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
EM BWMa@lbl.gov
RI Ma, Biwu/B-6943-2012
FU Office of Science, Office of Basic Energy Sciences, Scientific User
Facilities Division, U.S. Department of Energy [DE-AC02-05CH11231];
University of California, Berkeley
FX This work was performed at the Molecular Foundry, Lawrence Berkeley
National Laboratory, and was supported by the Office of Science, Office
of Basic Energy Sciences, Scientific User Facilities Division, U.S.
Department of Energy, under Contract DE-AC02-05CH11231. S.L. thanks
University of California, Berkeley, for the Chancellor's Fellowship.
L.C. thanks Department of Energy for the Science Undergraduate
Laboratory Internships (SULI) program.
NR 34
TC 33
Z9 33
U1 1
U2 19
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1944-8244
J9 ACS APPL MATER INTER
JI ACS Appl. Mater. Interfaces
PD NOV
PY 2011
VL 3
IS 11
BP 4469
EP 4474
DI 10.1021/am201157d
PG 6
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 850LG
UT WOS:000297195500043
PM 21999165
ER
PT J
AU Pint, CL
Takei, K
Kapadia, R
Zheng, M
Ford, AC
Zhang, JJ
Jamshidi, A
Bardhan, R
Urban, JJ
Wu, M
Ager, JW
Oye, MM
Javey, A
AF Pint, Cary L.
Takei, Kuniharu
Kapadia, Rehan
Zheng, Maxwell
Ford, Alexandra C.
Zhang, Junjun
Jamshidi, Arash
Bardhan, Rizia
Urban, Jeffrey J.
Wu, Ming
Ager, Joel W.
Oye, Michael M.
Javey, Ali
TI Rationally Designed, Three-Dimensional Carbon Nanotube Back-Contacts for
Efficient Solar Devices
SO ADVANCED ENERGY MATERIALS
LA English
DT Article
DE carbon nanofibers; photoelectrochemistry; solar fuel; water splitting
ID HETEROJUNCTION ARRAYS; OPTICAL-ABSORPTION; WATER-PHOTOLYSIS; HYBRID
MATERIALS; TIO2; ENERGY; CELLS; PHOTOELECTROCHEMISTRY; PHOTOCATALYSIS;
ELECTRODES
C1 [Pint, Cary L.; Takei, Kuniharu; Kapadia, Rehan; Zheng, Maxwell; Ford, Alexandra C.; Zhang, Junjun; Jamshidi, Arash; Wu, Ming; Javey, Ali] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA.
[Bardhan, Rizia; Urban, Jeffrey J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Mol Foundry, Berkeley, CA 94720 USA.
[Oye, Michael M.] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.
RP Javey, A (reprint author), Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA.
EM ajavey@berkeley.edu
RI Javey, Ali/B-4818-2013; Pint, Cary/C-5053-2009; bardhan,
rizia/A-9393-2010; Wu, Ming/J-9906-2012; Kapadia, Rehan/B-4100-2013;
Pint, Cary/I-6785-2013; Bardhan, Rizia/B-4674-2014
OI Ager, Joel/0000-0001-9334-9751; Kapadia, Rehan/0000-0002-7611-0551;
FU Berkeley Sensor and Actuator Center; Mohr Davidow Ventures; LDRD from
Lawrence Berkeley National Laboratory (LBNL); Office of Science, Office
of Basic Energy Sciences, Materials Sciences and Engineering Division,
of the U. S. Department of Energy [DE-AC02-05CH11231]; Sloan Fellowship;
World Class University, Sunchon National University
FX This work was partially funded by Berkeley Sensor and Actuator Center,
and Mohr Davidow Ventures. The synthesis part of this work was supported
by a LDRD from Lawrence Berkeley National Laboratory (LBNL). Reflectance
measurements were performed using facilities in the Electronic Materials
Program, LBNL, which is supported by supported by the Director, Office
of Science, Office of Basic Energy Sciences, Materials Sciences and
Engineering Division, of the U. S. Department of Energy under Contract
No. DE-AC02-05CH11231. A.J. acknowledges a Sloan Fellowship and support
from the World Class University program at Sunchon National University.
NR 34
TC 16
Z9 16
U1 1
U2 31
PU WILEY PERIODICALS, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN STREET, MALDEN, MA 02148-529 USA
SN 1614-6832
J9 ADV ENERGY MATER
JI Adv. Energy Mater.
PD NOV
PY 2011
VL 1
IS 6
BP 1040
EP 1045
DI 10.1002/aenm.201100436
PG 6
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary; Physics, Applied; Physics, Condensed Matter
SC Chemistry; Energy & Fuels; Materials Science; Physics
GA 848MU
UT WOS:000297056500010
ER
PT J
AU Mao, SS
AF Mao, Samuel S.
TI High throughput combinatorial screening of semiconductor materials
SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
LA English
DT Article
ID RADIATION DETECTORS
AB This article provides an overview of an advanced combinatorial material discovery platform developed recently for screening semiconductor materials with properties that may have applications ranging from radiation detectors to solar cells. Semiconductor thin-film libraries, each consisting of 256 materials of different composition arranged into a 16x16 matrix, were fabricated using laser-assisted evaporation process along with a combinatorial mechanism to achieve variations. The composition and microstructure of individual materials on each thin-film library were characterized with an integrated scanning micro-beam x-ray fluorescence and diffraction system, while the band gaps were determined by scanning optical reflection and transmission of the libraries. An ultrafast ultraviolet photon-induced charge probe was devised to measure the mobility and lifetime of individual thin-film materials on semiconductor libraries. Selected results on the discovery of semiconductors with desired band gaps and transport properties are illustrated.
C1 [Mao, Samuel S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Mao, Samuel S.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
RP Mao, SS (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Mail Stop 70-108B, Berkeley, CA 94720 USA.
EM ssmao@lbl.gov
FU U.S. Department of Energy [NNSA/NA22]
FX This research has been supported by the U.S. Department of Energy,
NNSA/NA22. The author acknowledges Z.X. Ma, P. Xiao, H. Hao, D. Liu, X.
Zhang, L. Oehlerking, D. Speaks, K.M. Yu, W. Walukiewicz, and P.Y. Yu,
for their contribution in various stages of the research.
NR 6
TC 9
Z9 9
U1 3
U2 20
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0947-8396
J9 APPL PHYS A-MATER
JI Appl. Phys. A-Mater. Sci. Process.
PD NOV
PY 2011
VL 105
IS 2
BP 283
EP 288
DI 10.1007/s00339-011-6614-7
PG 6
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 846DR
UT WOS:000296877900003
ER
PT J
AU Hwang, DJ
Xiang, B
Ryu, SG
Dubon, O
Minor, AM
Grigoropoulos, CP
AF Hwang, David J.
Xiang, Bin
Ryu, Sang-Gil
Dubon, Oscar
Minor, Andrew M.
Grigoropoulos, Costas P.
TI In-situ monitoring of optical near-field material processing by electron
microscopes
SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
LA English
DT Article
ID PULSED-LASER BEAM; NANOWIRES
AB Lasers are efficient tools in a variety of micro/nanoscale material processing applications. Even though optical imaging techniques offer convenient in-situ monitoring, their spatial resolution is frequently not sufficient for inspecting the detailed phenomena occurring in micro/nano structures, hence requiring additional characterization tools. Besides the inconvenience, critical processing parameters cannot be readily determined ex situ. In this study, an example of an in-situ monitoring technique for micro/nanoscale laser processing is demonstrated by combining the optical near-field apparatus with a scanning electron microscopy (SEM). In-situ process monitoring under true optical near-field configuration is realized through orthogonal probe manipulation and combined probe-sample translation and tilting apparatus. Catalyst behavior under a chemical vapor deposition (CVD) gas environment coupled with near-field illumination is monitored in an environmental SEM.
C1 [Hwang, David J.; Ryu, Sang-Gil; Grigoropoulos, Costas P.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
[Xiang, Bin; Dubon, Oscar; Minor, Andrew M.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Xiang, Bin; Minor, Andrew M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
[Dubon, Oscar] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Grigoropoulos, Costas P.] Univ Calif Berkeley, Lawrence Berkeley Lab, EETD, Adv Energy Technol Dept, Berkeley, CA 94720 USA.
RP Grigoropoulos, CP (reprint author), Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
EM cgrigoro@me.berkeley.edu
RI Xiang, Bin/C-9192-2012; Ryu, Sang-gil/I-3968-2013
FU DARPA/MTO [N66001-08-1-2041]; DOE/STTR [95632B10-I]; Scientific User
Facilities Division of the Office of Basic Energy Sciences, U.S.
Department of Energy [DE-AC02-05CH11231]; SINAM NSEC
FX The authors gratefully acknowledge support by DARPA/MTO under grant
N66001-08-1-2041, and DOE/STTR under grant 95632B10-I. Research
performed at the National Center for Electron Microscopy, Lawrence
Berkeley National Laboratory, 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. DJH and CPG
acknowledge support by the SINAM NSEC.
NR 6
TC 4
Z9 4
U1 2
U2 11
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0947-8396
J9 APPL PHYS A-MATER
JI Appl. Phys. A-Mater. Sci. Process.
PD NOV
PY 2011
VL 105
IS 2
BP 317
EP 321
DI 10.1007/s00339-011-6615-6
PG 5
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 846DR
UT WOS:000296877900007
ER
PT J
AU Oh, JE
Clark, SM
Monteiro, PJM
AF Oh, Jae Eun
Clark, Simon M.
Monteiro, Paulo J. M.
TI Determination of the bulk modulus of hydroxycancrinite, a possible
zeolitic precursor in geopolymers, by high-pressure synchrotron X-ray
diffraction
SO CEMENT & CONCRETE COMPOSITES
LA English
DT Article
DE Hydroxycancrinite; High pressure; Geopolymer; Zeolite; X-ray
diffraction; Equation of state; Bulk modulus
ID INDUCED STRUCTURAL EVOLUTION; F FLY-ASH; ELASTIC BEHAVIOR; ALKALINE
ACTIVATION; MICROSTRUCTURE; TEMPERATURE; AMORPHIZATION; COMPRESSION;
DURABILITY; MECHANISMS
AB Crystalline zeolitic materials, such as hydroxycancrinite, hydroxysodalite, herschelite and nepheline, are often synthesized from geopolymerization using fly-ash and solutions of NaOH at high temperatures. Comprised mainly of 6-membered aluminosilicate rings that act as basic building units, their crystal structures may provide insight into the reaction products formed in NaOH-activated fly ash-based geopolymers. Recent research indicates that the hydroxycancrinite and hydroxysodalite may play an important role as possible analogues of zeolitic precursor in geopolymers. Herein is reported a high pressure synchrotron study of the behavior of hydroxycancrinite exposed to pressures up to 6.1 GPa in order to obtain its bulk modulus. A refined equation of state for hydroxycancrinite yielded a bulk modulus of K(o) = 46 +/- 5 GPa (assuming K'(o) = 4.0) for a broad range of applied pressure. When low pressure values are excluded from the fit and only the range of 2.5 and 6.1 GPa is considered, the bulk modulus of hydroxycancrinite was found to be K(o) = 46.9 +/- 0.9 GPa (K'(o) = 4.0 +/- 0.4, calculated). Comparison with the literature shows that all zeolitic materials possessing single 6-membered rings (i.e., hydroxycancrinite, sodalite and nepheline) have similar bulk moduli. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Oh, Jae Eun; Monteiro, Paulo J. M.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
[Oh, Jae Eun] Ulsan Natl Inst Sci & Technol, Sch Urban & Environm Engn, Ulsan Metropolitan City 689798, South Korea.
[Clark, Simon M.] Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA USA.
[Clark, Simon M.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
RP Monteiro, PJM (reprint author), Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
EM monteiro@berkeley.edu
RI Oh, Jae-Eun/F-8632-2011; Clark, Simon/B-2041-2013;
OI Clark, Simon/0000-0002-7488-3438; Oh, Jae Eun/0000-0002-2318-3001
FU King Abdullah University of Science and Technology (KAUST)
[KUS-I1-004021]; Office of Science, Office of Basic Energy Sciences, of
the U.S. Department of Energy [DE-AC02-05CH11231]
FX This publication was based on work supported in part by Award No.
KUS-I1-004021, made by King Abdullah University of Science and
Technology (KAUST). 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 No. DE-AC02-05CH11231.
NR 56
TC 10
Z9 10
U1 1
U2 9
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0958-9465
J9 CEMENT CONCRETE COMP
JI Cem. Concr. Compos.
PD NOV
PY 2011
VL 33
IS 10
BP 1014
EP 1019
DI 10.1016/j.cemconcomp.2011.05.002
PG 6
WC Construction & Building Technology; Materials Science, Composites
SC Construction & Building Technology; Materials Science
GA 850IQ
UT WOS:000297188700004
ER
PT J
AU Broisat, A
Ruiz, M
Goodman, NC
Hanrahan, SM
Reutter, BW
Brennan, KM
Janabi, M
Schaefer, S
Watson, DD
Beller, GA
VanBrocklin, HF
Glover, DK
AF Broisat, Alexis
Ruiz, Mirta
Goodman, Norman C.
Hanrahan, Stephen M.
Reutter, Bryan W.
Brennan, Kathleen M.
Janabi, Mustafa
Schaefer, Saul
Watson, Denny D.
Beller, George A.
VanBrocklin, Henry F.
Glover, David K.
TI Myocardial Uptake of 7 '-(Z)-[I-123]Iodorotenone During Vasodilator
Stress in Dogs With Critical Coronary Stenoses
SO CIRCULATION-CARDIOVASCULAR IMAGING
LA English
DT Article
DE coronary artery disease; diagnosis; myocardial perfusion imaging;
radioisotope
ID POSITRON-EMISSION-TOMOGRAPHY; PERFUSION IMAGING AGENT; BLOOD-FLOW; HUMAN
BIODISTRIBUTION; KINETIC-ANALYSIS; TRACER; TL-201; MITOCHONDRIAL; RAT;
PET
AB Background-There is a well-recognized need for a new generation of single photon emission computed tomography (SPECT) perfusion tracers with improved myocardial extraction over a wide flow range. Radiotracers that target complex I of the mitochondrial electron transport chain have been proposed as a new class of myocardial perfusion imaging agents. 7-(Z)-[I-125]iodorotenone (I-125-ZIROT) has demonstrated superior myocardial extraction and retention characteristics in rats and in isolated perfused rabbit hearts. We sought to fully characterize the biodistribution and myocardial extraction versus flow relationship of I-123-ZIROT in an intact large-animal model.
Methods and Results-The I-123-ZIROT was administered during adenosine A(2A) agonist-induced hyperemia in 5 anesthetized dogs with critical left anterior descending (LAD) stenoses. When left circumflex (LCx) flow was maximal, I-123-ZIROT and microspheres were coinjected and the dogs were euthanized 5 minutes later. I-123-ZIROT biodistribution was evaluated in 2 additional dogs by in vivo planar imaging. At I-123-ZIROT injection, transmural LAD flow was unchanged from baseline (mean +/- SEM, 0.90 +/- 0.22 versus 0.87 +/- 0.11 mL/[min . g]; P=0.92), whereas LCx zone flow increased significantly (mean +/- SEM, 3.25 +/- 0.51 versus 1.00 +/- 0.17 mL/[min . g]; P<0.05). Myocardial I-123-ZIROT extraction tracked regional myocardial flow better than either thallium-201 or (99)mTc-sestamibi from previous studies using a similar model. Furthermore, the I-123-ZIROT LAD/LCx activity ratios by ex vivo imaging or well counting (mean +/- SEM, 0.42 +/- 0.08 and 0.45 +/- 0.1, respectively) only slightly underestimated the LAD/LCx microsphere flow ratio (0.32 +/- 0.09).
Conclusions-The ability of I-123-ZIROT to more linearly track blood flow over a wide range makes it a promising new SPECT myocardial perfusion imaging agent with potential for improved coronary artery disease detection and better quantitative estimation of the severity of flow impairment. (Circ Cardiovasc Imaging. 2011;4:685-692.)
C1 [Broisat, Alexis; Ruiz, Mirta; Goodman, Norman C.; Watson, Denny D.; Beller, George A.; Glover, David K.] Univ Virginia Hlth Syst, Expt Cardiol Lab, Div Cardiovasc, Dept Med, Charlottesville, VA 22908 USA.
[Hanrahan, Stephen M.; Reutter, Bryan W.; Brennan, Kathleen M.; Janabi, Mustafa; VanBrocklin, Henry F.] Univ Calif Berkeley, Lawrence Berkeley Lab, Radiotracer Dev & Imaging Technol Dept, Berkeley, CA 94720 USA.
[Schaefer, Saul] Univ Calif Davis, Sch Med, Div Cardiovasc Med, Dept Med, Sacramento, CA 95817 USA.
[VanBrocklin, Henry F.] Univ Calif San Francisco, Ctr Mol & Funct Imaging, Dept Radiol & Biomed Imaging, San Francisco, CA 94143 USA.
RP Glover, DK (reprint author), Univ Virginia Hlth Syst, Expt Cardiol Lab, Div Cardiovasc, Dept Med, 409 Lane Rd,MR-4 Bldg,Room 1192,POB 801394, Charlottesville, VA 22908 USA.
EM dglover@virginia.edu
FU Office of Science, Office of Biological and Environmental Research,
Biological Systems Science Division of the US Department of Energy
[DE-AC02-05CH11231]; National Institute of Biomedical Imaging and
Bioengineering, National Institutes of Health [EB000482]
FX This study was supported in part by contract DE-AC02-05CH11231 from the
Director, Office of Science, Office of Biological and Environmental
Research, Biological Systems Science Division of the US Department of
Energy; and by grant EB000482 (HV) from the National Institute of
Biomedical Imaging and Bioengineering, National Institutes of Health.
NR 41
TC 3
Z9 3
U1 0
U2 8
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1941-9651
J9 CIRC-CARDIOVASC IMAG
JI Circ.-Cardiovasc. Imaging
PD NOV
PY 2011
VL 4
IS 6
BP 685
EP 692
DI 10.1161/CIRCIMAGING.110.961763
PG 8
WC Cardiac & Cardiovascular Systems; Radiology, Nuclear Medicine & Medical
Imaging
SC Cardiovascular System & Cardiology; Radiology, Nuclear Medicine &
Medical Imaging
GA 850AZ
UT WOS:000297168100014
PM 21917783
ER
PT J
AU Comolli, LR
Luef, B
Chan, CS
AF Comolli, Luis R.
Luef, Birgit
Chan, Clara S.
TI High-resolution 2D and 3D cryo-TEM reveals structural adaptations of two
stalk-forming bacteria to an Fe-oxidizing lifestyle
SO ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID GALLIONELLA-FERRUGINEA; CRYOELECTRON TOMOGRAPHY; IRON; CAULOBACTER;
PILI; ARCHITECTURE; ENRICHMENT; POLE
AB Aerobic neutrophilic Fe-oxidizing bacteria (FeOB) thrive where oxic and iron-rich anoxic waters meet. Here, iron microbial mats are commonly developed by stalk-forming Fe-oxidizers adapted to these iron-rich gradient environments, somehow avoiding iron encrustation. Few details are known about FeOB physiology; thus, the bases of these adaptations, notably the mechanisms of interactions with iron, are poorly understood. We examined two stalked FeOB: the marine Zetaproteobacterium Mariprofundus ferrooxydans and a terrestrial Betaproteobacterium Gallionella-like organism. We used cryo-transmission electron microscopy and cryo-electron tomography to provide unprecedented ultrastructural data on intact cell-mineral systems. Both FeOB localize iron mineral formation at stalk extrusion sites, while avoiding surface and periplasmic mineralization. The M. ferrooxydans cell surface is densely covered in fibrils while the terrestrial FeOB surface is smooth, suggesting a difference in surface chemistry. Only the terrestrial FeOB exhibited a putative chemotaxis apparatus, which may be due to differences in chemotaxis mechanisms. Both FeOB have a single flagellum, which alone is insufficient to account for cell motion during iron oxidation, suggesting that stalk extrusion is a mechanism for motility. Our results delineate the physical framework of iron transformations and characterize possible structural adaptations to the iron-oxidizing lifestyle. This study shows ultrastructural similarities and differences between two distinct FeOB, setting the stage for further (e.g. genomic) comparisons that will help us understand functional differences and evolutionary history.
C1 [Comolli, Luis R.; Luef, Birgit] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Luef, Birgit] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
[Chan, Clara S.] Univ Delaware, Dept Geol Sci, Coll Earth Ocean & Environm, Newark, DE 19716 USA.
RP Comolli, LR (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
EM lrcomolli@lbl.gov; cschan@udel.edu
RI Chan, Clara/B-6420-2011
OI Chan, Clara/0000-0003-1810-4994
FU Office of Science of the U.S. Department of Energy; Office of Biological
and Environmental Research of the U.S. Department of Energy
[DEAC02-05CH11231, DEAC03-76SF00098]; University of Delaware; NSF
FX This work was supported by the Director, Office of Science, Office of
Biological and Environmental Research, of the U.S. Department of Energy
under Contracts No. DEAC02-05CH11231 and DEAC03-76SF00098, the
University of Delaware, and an NSF Ridge 2000 postdoctoral fellowship to
CSC. We thank Cristina E. Siegerist for help with image display.
NR 41
TC 16
Z9 16
U1 3
U2 41
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1462-2912
J9 ENVIRON MICROBIOL
JI Environ. Microbiol.
PD NOV
PY 2011
VL 13
IS 11
BP 2915
EP 2929
DI 10.1111/j.1462-2920.2011.02567.x
PG 15
WC Microbiology
SC Microbiology
GA 849TJ
UT WOS:000297147800009
PM 21895918
ER
PT J
AU Mintz, JM
Spencer, DK
Holck, DM
AF Mintz, J. M.
Spencer, D. K.
Holck, D. M.
TI LARGE SCALE TRITIUM RECOVERY FROM OBSOLETE ILLUMINATION DEVICES AT LLNL
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
AB Since 2001, LLNL has supported a program to recover and recycle tritium from exit signs, telephone dials, gun sights and other military and commercial tritium-powered illumination devices. In addition to permitting tritium reuse, this effort also provides an environmentally safe disposal option. Recently, the startup of the Tritium Grinder System (TGS) in the LLNL Tritium Facility has added significantly to the program's capability and capacity. Actual results, including the collected gas chemical composition and unit processing rate are presented along with a summary of the design features, operating procedures and safety controls.
C1 [Mintz, J. M.; Spencer, D. K.; Holck, D. M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Mintz, JM (reprint author), Lawrence Livermore Natl Lab, Mail Stop L-358,7000 E Ave, Livermore, CA 94550 USA.
NR 3
TC 0
Z9 0
U1 1
U2 3
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 NOV
PY 2011
VL 60
IS 4
BP 1220
EP 1223
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200005
ER
PT J
AU Heung, LK
Sessions, HT
Xiao, X
AF Heung, L. K.
Sessions, H. T.
Xiao, X.
TI TCAP HYDROGEN ISOTOPE SEPARATION USING PALLADIUM AND INVERSE COLUMNS
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
AB The Thermal Cycling Absorption Process (TCAP) was further studied with a new configuration. Previous configuration used a palladium packed column and a plug flow reverser (PFR). This new configuration uses an inverse column to replace the PFR. The goal was to further improve performance. Both configurations were experimentally tested. The results showed that the new configuration increased the throughput by a factor of more than 2.
C1 [Heung, L. K.; Sessions, H. T.; Xiao, X.] Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Heung, LK (reprint author), Savannah River Natl Lab, 999-2W,Savannah River Site, Aiken, SC 29808 USA.
EM leung.heung@srnl.doe.gov
NR 7
TC 3
Z9 3
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 NOV
PY 2011
VL 60
IS 4
BP 1331
EP 1334
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200030
ER
PT J
AU Morgan, GA
AF Morgan, Gregg A., Jr.
TI EFFECT OF IMPURITIES ON THE PERFORMANCE OF A Pd-Ag DIFFUSER
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
ID HYDROGEN PERMEATION; THIN PD/AG; MEMBRANES
AB A commercially fabricated diffuser purchased from Johnson-Matt hey, Inc. was evaluated for performance characterization testing at the Savannah River National Laboratory (SRNL). Different impurities are often present in the feed streams of the process diffusers, but the effect of these impurities on the diffuser performance is currently unknown. Various impurities were introduced into the feed stream of the diffuser at various levels ranging from 0.5% to 10% of the total flow in order to determine the effect that these impurities have on the permeation of hydrogen through the palladium-silver membrane. The introduction of various impurities into the feed stream of the diffuser had a minimal effect on the overall permeation of hydrogen through the Pd-Ag membrane. Of the four impurities introduced into the feed stream, carbon monoxide (CO) was the only impurity that showed any evidence of causing a reduction in the amount of hydrogen permeating through the Pd-Ag membrane. The hydrogen permeation returned to its baseline level after the CO was removed from the feed stream. There were no lasting effects of the CO exposure on the ability of the membrane to effectively separate hydrogen from the non-hydrogen species in the gas stream under the conditions tested.
C1 Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Morgan, GA (reprint author), Savannah River Natl Lab, Aiken, SC 29808 USA.
EM gregg.morgan@srnl.doe.gov
NR 7
TC 0
Z9 0
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 NOV
PY 2011
VL 60
IS 4
BP 1367
EP 1370
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200039
ER
PT J
AU Klein, JE
AF Klein, J. E.
TI EXPERIMENTAL RESULTS FOR THE ISOTOPIC EXCHANGE OF A 1600 LITER TITANIUM
HYDRIDE STORAGE VESSEL
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
ID TRITIUM; HYDROGEN
AB Titanium is used as a low pressure tritium storage material. The absorption/desorption rates and temperature rise during air passivation have been reported previously for a 4400 gram prototype titanium hydride storage vessel (HSV). A desorption limit of roughly 0.25 Q/M was obtained when heating to 700 degrees C which represents a significant residual tritium process vessel inventory. To prepare an HSV for disposal, batch-wise isotopic exchange has been proposed to reduce the tritium content to acceptable levels.
A prototype HSV was loaded with deuterium and exchanged with protium to determine the effectiveness of a batch-wise isotopic exchange process. A total of seven exchange cycles were performed. Gas samples were taken nominally at the beginning, middle, and end of each desorption cycle. Sample analyses showed the isotopic exchange process does not follow the standard dilution model commonly reported. Samples taken at the start of the desorption process were lower in deuterium (the gas to be removed) than those taken later in the desorption cycle. The results are explained in terms of incomplete mixing of the exchange gas in the low pressure hydride.
C1 Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Klein, JE (reprint author), Savannah River Natl Lab, Aiken, SC 29808 USA.
EM james.klein@srnl.doe.gov
NR 10
TC 0
Z9 0
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 NOV
PY 2011
VL 60
IS 4
BP 1371
EP 1374
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200040
ER
PT J
AU Xiao, X
Heung, LK
AF Xiao, X.
Heung, L. K.
TI CRYOGENIC ADSORPTION OF HYDROGEN ISOTOPES OVER NANO-STRUCTURED MATERIALS
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
ID TRITIUM; TEMPERATURE; ADSORBENTS
AB Porous materials such as zeolites, activated carbon, silica gels, alumina and a number of industrial catalysts are compared and ranked for hydrogen and deuterium adsorption at liquid nitrogen temperature. All samples show higher D(2) adsorption than that of H(2), in which HY zeolite has the greatest isotopic effect while 13X zeolite has the highest hydrogen uptake capacity. Material's moisture content has significant impact to its hydrogen uptake. A material without adequate drying could result in complete loss of its adsorption capacity. Even though some materials present higher H(2) adsorption capacity at full pressure, their adsorption at low vapor pressure may not be as good as others. Adsorption capacity in a dynamic system is much less than in a static system, as expected. The same type of material from different vendors or lots may behave differently.
C1 [Xiao, X.; Heung, L. K.] Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Xiao, X (reprint author), Savannah River Natl Lab, 999-2W,Savannah River Site, Aiken, SC 29808 USA.
EM steve.xiao@srnl.doe.gov
NR 9
TC 0
Z9 0
U1 0
U2 3
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 NOV
PY 2011
VL 60
IS 4
BP 1415
EP 1418
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200051
ER
PT J
AU Oda, T
Shimada, M
Zhang, K
Calderoni, P
Oya, Y
Sokolov, M
Kolasinski, R
Sharpe, JP
Hatano, Y
AF Oda, T.
Shimada, M.
Zhang, K.
Calderoni, P.
Oya, Y.
Sokolov, M.
Kolasinski, R.
Sharpe, J. P.
Hatano, Y.
TI DEVELOPMENT OF MONTE CARLO SIMULATION CODE TO MODEL BEHAVIOR OF HYDROGEN
ISOTOPES LOADED INTO TUNGSTEN CONTAINING VACANCIES
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
ID DIFFUSION; ADSORPTION; SURFACE
AB The behavior of hydrogen isotopes implanted into tungsten containing vacancies was simulated using a Monte Carlo technique. The correlations between the distribution of implanted deuterium and fluence, trap density and trap distribution were evaluated. Throughout the present study, qualitatively understandable results were obtained. In order to improve the precision of the model and obtain quantitatively reliable results, it is necessary to deal with the following subjects: (1) how to balance long-time irradiation processes with a rapid diffusion process, (2) how to prevent unrealistic accumulation of hydrogen, and (3) how to model the release of hydrogen forcibly loaded into a region where hydrogen densely exist already.
C1 [Oda, T.] Univ Tokyo, Dept Nucl Engn & Management, Tokyo 1138656, Japan.
[Shimada, M.; Calderoni, P.; Sharpe, J. P.] Idaho Natl Lab, Fus Safety Program, Idaho Falls, ID 83415 USA.
[Zhang, K.; Hatano, Y.] Toyama Univ, Hydrogen Isotope Res Ctr, Toyama 9308555, Japan.
[Oya, Y.] Shizuoka Univ, Radiosci Res Lab, Fac Sci, Shizuoka 4228529, Japan.
[Sokolov, M.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Kolasinski, R.] Sandia Natl Labs, Hydrogen & Met Sci Dept, Livermore, CA 94551 USA.
RP Oda, T (reprint author), Univ Tokyo, Dept Nucl Engn & Management, Tokyo 1138656, Japan.
EM oda@flanker.n.t.u-tokyo.ac.jp
NR 8
TC 5
Z9 5
U1 0
U2 5
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 NOV
PY 2011
VL 60
IS 4
BP 1455
EP 1458
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200060
ER
PT J
AU Staack, GC
Klein, JE
AF Staack, G. C.
Klein, J. E.
TI THE EFFECT OF (HE)-H-3 ON LOW PRESSURE HYDRIDE ABSORPTION MEASUREMENTS
WITH TRITIUM
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
AB Absorption isotherm data exists for a wide variety of hydrogen-metal systems. When working with high purity gases, appropriately sized equipment, and hydrides with equilibrium pressures above several hundred Pa, data collection is relatively straightforward. Special consideration must be given to experiments involving low equilibrium pressure hydrides, as even sub-ppm levels of gas impurities can generate partial pressures many times greater than the equilibrium pressures to be measured. Tritium absorption experiments are further complicated by the continuous generation of helium-3. The time required to transfer and absorb a known quantity of tritium onto a sample ultimately limits the minimum pressure range that can be studied using the standard technique. Equations are presented which show the pressure of helium-3 in a sample cell based on the amount of tritium to be absorbed, the sample cell volume and temperature, and the decay time of tritium. Sample calculations for zirconium show that at 300 degrees C, the estimated helium-3 pressure in the cell will be equal to the hydrogen absorption pressure after only milliseconds of tritium decay. An alternate method is presented that permits the collection of equilibrium data at pressures orders of magnitude lower than possible using a direct approach
C1 [Staack, G. C.; Klein, J. E.] Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Staack, GC (reprint author), Savannah River Natl Lab, Aiken, SC 29808 USA.
EM Gregory.Staack@srnl.doe.gov
NR 1
TC 2
Z9 2
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 NOV
PY 2011
VL 60
IS 4
BP 1479
EP 1482
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200066
ER
PT J
AU Shimada, M
Otsuka, T
Pawelko, RJ
Calderoni, P
Sharpe, JP
AF Shimada, Masashi
Otsuka, T.
Pawelko, R. J.
Calderoni, P.
Sharpe, J. P.
TI OVERVIEW OF RECENT TRITIUM EXPERIMENTS IN TPE
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
AB Tritium retention in plasma-facing components influences the design, operation, and lifetime of fusion devices such as ITER. Most of the retention studies were carried out with the use of either hydrogen or deuterium. Tritium Plasma Experiment is a unique linear plasma device that can handle radioactive fusion fuel of tritium, toxic material of beryllium, and neutron-irradiated material. A tritium depth profiling method up to mm range was developed using a tritium imaging plate and a diamond wire saw. A series of tritium experiments (T-2/D-2 ratio: 0.2 and 0.5 %) was performed to investigate tritium depth profiling in bulk tungsten, and the results shows that tritium is migrated into bulk tungsten up to mm range.
C1 [Shimada, Masashi; Pawelko, R. J.; Calderoni, P.; Sharpe, J. P.] Idaho Natl Lab, Fus Safety Program, Idaho Falls, ID 83415 USA.
[Otsuka, T.] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Higashi Ku, Fukuoka 8128581, Japan.
RP Shimada, M (reprint author), Idaho Natl Lab, Fus Safety Program, Idaho Falls, ID 83415 USA.
EM Masashi.Shimada@inl.gov
OI Shimada, Masashi/0000-0002-1592-843X; Calderoni,
Pattrick/0000-0002-2316-6404
NR 4
TC 1
Z9 1
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 NOV
PY 2011
VL 60
IS 4
BP 1495
EP 1498
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200070
ER
PT J
AU Otsuka, T
Shimada, M
Tanabe, T
Sharpe, JP
AF Otsuka, T.
Shimada, M.
Tanabe, T.
Sharpe, J. P.
TI BEHAVIOR OF TRITIUM NEAR SURFACE REGION OF METALS EXPOSED TO TRITIUM
PLASMA
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
AB In order to understand behavior of tritium (T) on surface and in bulk of metals exposed to T plasma, both surface activities and depth profiles of T were periodically observed by a tritium imaging plate technique during storage in air at room temperature (RT) for over 1 year. In the T depth profiles, T localized within a depth of sub mm from the surface was clearly distinguished from T in the bulk. The former was attributed to strong trapping by some defects produced by the plasma exposure and remained quite longer during the storage, while the latter was released from the surfaces by diffusion. T surface activity measured on the plasma-exposed surface changed in a complicated way with time due to removal of T by isotopic replacement with H in ubiquitous H(2)O and T supply from the bulk in the course of the diffusional release.
C1 [Otsuka, T.; Tanabe, T.] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Higashi Ku, Fukuoka 8128581, Japan.
[Shimada, M.; Sharpe, J. P.] Idaho Natl Lab, Fus Safety Program, Idaho Falls, ID 83415 USA.
RP Otsuka, T (reprint author), Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Higashi Ku, 6-10-1 Hakozaki, Fukuoka 8128581, Japan.
EM t-otsuka@nucl.kyushu-u.ac.jp
OI Shimada, Masashi/0000-0002-1592-843X
NR 7
TC 1
Z9 1
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 NOV
PY 2011
VL 60
IS 4
BP 1539
EP 1542
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200081
ER
PT J
AU Kompaniets, T
Yukhimchuk, A
Denisov, E
Kanashenko, S
Causey, R
Glugla, M
Grishechkin, S
Hassanein, A
Kurdyumov, A
Malkov, I
AF Kompaniets, T.
Yukhimchuk, A.
Denisov, E.
Kanashenko, S.
Causey, R.
Glugla, M.
Grishechkin, S.
Hassanein, A.
Kurdyumov, A.
Malkov, I.
TI HYDROGEN INTERACTION WITH NICKEL CONTAINING RADIOGENIC HELIUM
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
ID STAINLESS-STEEL; METALS
AB Accumulation of (3)He can result in a change of hydrogen isotope interactions with metal due to appearance of additional structural defects. The work is devoted to comparative study of hydrogen interactions with pure Ni and Ni containing radiogenic helium. "Tritium trick" technique was used for a build-up of radiogenic helium inside Ni samples.
C1 [Kompaniets, T.; Denisov, E.; Kurdyumov, A.] St Petersburg State Univ, Fac Phys, St Petersburg 198904, Russia.
[Yukhimchuk, A.; Grishechkin, S.; Malkov, I.] All Russian Res Inst Expt Phys, Russian Fed Nucl Ctr, Sarov 607188, Nizhny Novgorod, Russia.
[Kanashenko, S.] Russian Acad Sci, Inst Phys Chem, Moscow 119991, Russia.
[Causey, R.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Glugla, M.] ITER Org, St Paul Les Durance, France.
[Hassanein, A.] Purdue Univ, W Lafayette, IN 47907 USA.
RP Kompaniets, T (reprint author), St Petersburg State Univ, Fac Phys, Ulyanovskaya St 1, St Petersburg 198904, Russia.
EM kompaniets@pobox.spbu.ru
RI Kompaniets, Tatiana/L-5129-2013; Denisov, Evgeny/M-6226-2013
OI Kompaniets, Tatiana/0000-0001-5623-8534; Denisov,
Evgeny/0000-0003-0560-9168
NR 15
TC 2
Z9 2
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 NOV
PY 2011
VL 60
IS 4
BP 1552
EP 1555
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200084
ER
PT J
AU Yukhimchuk, A
Boitsov, I
Grishechkin, S
Denisov, E
Causey, R
Glugla, M
Hassanein, A
Kanashenko, S
Kompaniets, T
Malkov, I
Shikin, I
AF Yukhimchuk, A.
Boitsov, I.
Grishechkin, S.
Denisov, E.
Causey, R.
Glugla, M.
Hassanein, A.
Kanashenko, S.
Kompaniets, T.
Malkov, I.
Shikin, I.
TI HYDROGEN INTERACTION WITH STAINLESS STEEL 12Cr18Ni10Ti CONTAINING
RADIOGENIC He-3
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
ID MECHANICAL-PROPERTIES; STRUCTURAL-MATERIALS; HELIUM
AB Mechanical properties, structural changes and hydrogen interactions with stainless steel 12Cr18Ni10Ti subjected to accelerated radiogenic He-3 buildup by means of "tritium trick" technique were studied. After saturation with tritium up to equilibrium concentration at a pressure 50 MPa and T=773 K the samples were rapidly cooled to room temperature and aged at this temperature up to the buildup of a predetermined He-3 concentration. Kinetics of helium thermal release, hydrogen transport, trapping and accumulation in steel containing various concentration of He-3, synergistic influence of He-3 and hydrogen on mechanical properties of steel containing up to 500 appm He-3 and structural changes at various He-3 concentrations are discussed.
C1 [Yukhimchuk, A.; Boitsov, I.; Grishechkin, S.; Malkov, I.] All Russian Res Inst Expt Phys, Russian Fed Nucl Ctr, Sarov 607188, Nizhny Novgorod, Russia.
[Denisov, E.; Kompaniets, T.; Shikin, I.] St Petersburg State Univ, Fac Phys, St Petersburg 198904, Russia.
[Causey, R.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Glugla, M.] ITER Org, St Paul Les Durance, France.
[Hassanein, A.] Purdue Univ, W Lafayette, IN 47907 USA.
[Kanashenko, S.] Russian Acad Sci, Inst Phys Chem, Moscow 119991, Russia.
RP Yukhimchuk, A (reprint author), All Russian Res Inst Expt Phys, Russian Fed Nucl Ctr, Mira Av 37, Sarov 607188, Nizhny Novgorod, Russia.
EM arkad@triton.vniief.ru
RI Kompaniets, Tatiana/L-5129-2013; Denisov, Evgeny/M-6226-2013
OI Kompaniets, Tatiana/0000-0001-5623-8534; Denisov,
Evgeny/0000-0003-0560-9168
NR 13
TC 2
Z9 2
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 NOV
PY 2011
VL 60
IS 4
BP 1556
EP 1559
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200085
ER
PT J
AU Humrickhouse, PW
Calderoni, P
Merrill, BJ
AF Humrickhouse, P. W.
Calderoni, P.
Merrill, B. J.
TI IMPLEMENTATION OF TRITIUM PERMEATION MODELS IN THE CFD CODE FLUENT
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th International Conference on Tritium Science and Technology
CY OCT 24-29, 2010
CL Nara, JAPAN
AB A number of additions have been made to the computational fluid dynamics (CFD) code Fluent in order to model hydrogen permeation. In addition to fluid dynamics, Fluent solves for heat transfer in coupled solid and fluid regions, and solves advection-diffusion equations for scalar quantities such as hydrogen concentration. The latter have been modified with additional code to satisfy Sievert's Law at solid-fluid interfaces and allow for temperature dependent diffusivity and permeability.
The method has been employed to model the Tritium Heat Exchanger (THX) experiment at INL, which investigates hydrogen permeation in helium and candidate structural materials for high temperature gas reactor heat exchangers. The Arrhenius law parameters used in Fluent for Inconel 617 are initially determined via a simplified analytical method, and the resulting model predictions compare favorably with experiment data.
C1 [Humrickhouse, P. W.; Calderoni, P.; Merrill, B. J.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Humrickhouse, PW (reprint author), Idaho Natl Lab, POB 1625, Idaho Falls, ID 83415 USA.
EM paul.humrickhouse@inl.gov
OI Calderoni, Pattrick/0000-0002-2316-6404
NR 5
TC 0
Z9 0
U1 0
U2 6
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 NOV
PY 2011
VL 60
IS 4
BP 1564
EP 1567
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 843LV
UT WOS:000296674200087
ER
PT J
AU Bracht, H
Radek, M
Kube, R
Knebel, S
Posselt, M
Schmidt, B
Haller, EE
Bougeard, D
AF Bracht, H.
Radek, M.
Kube, R.
Knebel, S.
Posselt, M.
Schmidt, B.
Haller, E. E.
Bougeard, D.
TI Ion-beam mixing in crystalline and amorphous germanium isotope
multilayers
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID SEMICONDUCTORS; MECHANISMS; METALS
AB Gallium (Ga) implantation induced self-atom mixing in crystalline and amorphous germanium (Ge) is investigated utilizing isotopically controlled Ge multilayer structures grown by molecular beam epitaxy. The distribution of the Ga ions and the ion-beam induced depth-dependent mixing of the isotope structure was determined by means of secondary ion mass spectrometry. Whereas the distribution of Ga in the crystalline and amorphous Ge is very similar and accurately reproduced by computer simulations based on binary collision approximation (BCA), the ion-beam induced self-atom mixing is found to depend strongly on the state of the Ge structure. The experiments reveal stronger self-atom mixing in crystalline than in amorphous Ge. Atomistic simulations based on BCA reproduce the experimental results only when unphysically low Ge displacement energies are assumed. Analysis of the self-atom mixing induced by silicon implantation confirms the low displacement energy deduced within the BCA approach. This demonstrates that thermal spike mixing contributes significantly to the overall mixing of the Ge isotope structures. The disparity observed in the ion-beam mixing efficiency of crystalline and amorphous Ge indicates different dominant mixing mechanisms. We propose that self-atom mixing in crystalline Ge is mainly controlled by radiation enhanced diffusion during the early stage of mixing before the crystalline structure turns amorphous, whereas in an already amorphous state self-atom mixing is mediated by cooperative diffusion events. (C) 2011 American Institute of Physics. [doi:10.1063/1.3658259]
C1 [Bracht, H.; Radek, M.; Kube, R.; Knebel, S.] Univ Munster, Inst Mat Phys, D-48149 Munster, Germany.
[Posselt, M.; Schmidt, B.] Helmholtz Zentrum Dresden Rossendorf, D-01314 Dresden, Germany.
[Haller, E. E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Bougeard, D.] Inst Expt & Angew Phys, D-93040 Regensburg, Germany.
RP Bracht, H (reprint author), Univ Munster, Inst Mat Phys, D-48149 Munster, Germany.
EM bracht@uni-muenster.de
NR 19
TC 3
Z9 3
U1 0
U2 15
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD NOV 1
PY 2011
VL 110
IS 9
AR 093502
DI 10.1063/1.3658259
PG 7
WC Physics, Applied
SC Physics
GA 848OY
UT WOS:000297062100018
ER
PT J
AU Clay, WA
Sasagawa, T
Iwasa, A
Liu, Z
Dahl, JE
Carlson, RMK
Kelly, M
Melosh, N
Shen, ZX
AF Clay, William A.
Sasagawa, Takao
Iwasa, Akio
Liu, Zhi
Dahl, Jeremy E.
Carlson, Robert M. K.
Kelly, Michael
Melosh, Nicholas
Shen, Zhi-Xun
TI Photoluminescence of diamondoid crystals
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID SATURATED-HYDROCARBONS; FUNCTIONALIZED NANODIAMONDS; FLUORESCENCE;
PHOTOEMISSION; ADAMANTANE; MONOLAYERS; MOLECULES; ENERGIES; ORIGIN
AB The photoluminescence of diamondoids in the solid state is examined. All of the diamondoids are found to photoluminesce readily, with initial excitation wavelengths ranging from 233 nm to 240 nm (5.3 eV). These excitation energies are more than 1 eV lower than any previously studied saturated hydrocarbon material. The emission is found to be heavily shifted from the absorption, with emission wavelengths of roughly 295 nm (4.2 eV) in all cases. In the dissolved state, however, no fluorescence is observed for excitation wavelengths as short as 200 nm. We also discuss predictions and measurements of the quantum yield. Our predictions indicate that the maximum yield may be as high as 25%. Our measurement of one species, diamantane, gives a yield of 11%, the highest ever reported for a saturated hydrocarbon, even though it was likely not at the optimal excitation wavelength. (C) 2011 American Institute of Physics. [doi:10.1063/1.3657522]
C1 [Clay, William A.; Dahl, Jeremy E.; Kelly, Michael; Melosh, Nicholas; Shen, Zhi-Xun] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Clay, William A.; Dahl, Jeremy E.; Kelly, Michael; Melosh, Nicholas; Shen, Zhi-Xun] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA.
[Sasagawa, Takao; Iwasa, Akio] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan.
[Liu, Zhi] Lawrence Berkeley Lab, Adv Light Source, Livermore, CA 94550 USA.
[Carlson, Robert M. K.] Chevron Technol Ventures, MolecularDiamond Technol, Richmond, CA 94802 USA.
[Shen, Zhi-Xun] Stanford Inst Mat & Energy Sci, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
RP Clay, WA (reprint author), Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
EM wclay@stanford.edu
RI Sasagawa, Takao/E-6666-2014; Liu, Zhi/B-3642-2009
OI Sasagawa, Takao/0000-0003-0149-6696; Liu, Zhi/0000-0002-8973-6561
FU Department of Energy office of Basic Sciences, Division of Materials
Science [DE-AC02-76SF00515]; Chevron through the Stanford-Chevron
Diamondoid program; DOE Office of Basic Energy Science, Division of
Material Science and Engineering [DE-AC02-76SF00515]; Iketani Science
and Technology Foundation; MEXT, Japan
FX This work was supported, in part, by the Department of Energy office of
Basic Sciences, Division of Materials Science under contract No.
DE-AC02-76SF00515 and by a grant from Chevron through the
Stanford-Chevron Diamondoid program, as well as by the DOE Office of
Basic Energy Science, Division of Material Science and Engineering under
Contract No. DE-AC02-76SF00515. Work performed at the Tokyo Institute of
Technology was supported by a research grant from Iketani Science and
Technology Foundation and a Grant-in-Aid for Scientific Research from
MEXT, Japan.
NR 32
TC 5
Z9 5
U1 0
U2 29
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD NOV 1
PY 2011
VL 110
IS 9
AR 093512
DI 10.1063/1.3657522
PG 6
WC Physics, Applied
SC Physics
GA 848OY
UT WOS:000297062100028
ER
PT J
AU Levander, AX
Novikov, SV
Liliental-Weber, Z
dos Reis, R
Dubon, OD
Wu, J
Foxon, CT
Yu, KM
Walukiewicz, W
AF Levander, A. X.
Novikov, S. V.
Liliental-Weber, Z.
dos Reis, R.
Dubon, O. D.
Wu, J.
Foxon, C. T.
Yu, K. M.
Walukiewicz, W.
TI Doping of GaN1-xAsx with high As content
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID HYDROGENATED AMORPHOUS-SILICON; SOLAR-CELL; SI-H; BAND; GAN; JUNCTION;
ALLOYS; GAAS
AB Recent work has shown that GaN1-xAsx can be grown across the entire composition range by low temperature molecular beam epitaxy with intermediate compositions being amorphous, but control of the electrical properties through doping is critical for functionalizing this material. Here we report the bipolar doping of GaN1-xAsx with high As content to conductivities above 4 S/cm at room temperature using Mg or Te. The carrier type was confirmed by thermopower measurements. Doping requires an increase in Ga flux during growth resulting in a mixed phase material of polycrystalline GaAs:N embedded in amorphous GaN1-xAsx. VC 2011 American Institute of Physics. [doi: 10.1063/1.3657779]
C1 [Levander, A. X.; Liliental-Weber, Z.; dos Reis, R.; Dubon, O. D.; Wu, J.; Yu, K. M.; Walukiewicz, W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Levander, A. X.; Dubon, O. D.; Wu, J.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Novikov, S. V.; Foxon, C. T.] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England.
[dos Reis, R.] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil.
RP Levander, AX (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM kmyu@lbl.gov
RI Wu, Junqiao/G-7840-2011; dos Reis, Roberto/E-9486-2012; Liliental-Weber,
Zuzanna/H-8006-2012; Yu, Kin Man/J-1399-2012
OI Wu, Junqiao/0000-0002-1498-0148; dos Reis, Roberto/0000-0002-6011-6078;
Yu, Kin Man/0000-0003-1350-9642
FU Office of Science, Office of Basic Energy Sciences, Materials Sciences
and Engineering Division, of the U.S. DOE [DE-AC02-05CH11231]; National
Science Foundation [DMR-0349257]; EPSRC [EP/I004203/1, EP/G046867/1,
EP/G030634/1]
FX This work was supported by the Director, Office of Science, Office of
Basic Energy Sciences, Materials Sciences and Engineering Division, of
the U.S. DOE under Contract No. DE-AC02-05CH11231. O.D.D. acknowledges
support from National Science Foundation Contract No. DMR-0349257. The
use of the National Center for Electron Microscopy at Lawrence Berkeley
Laboratory is appreciated. The growth work at the University of
Nottingham was supported by the EPSRC (Grant Nos. EP/I004203/1,
EP/G046867/1, and EP/G030634/1). A. X. L. acknowledges the National
Science Foundation for financial support.
NR 24
TC 4
Z9 4
U1 1
U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD NOV 1
PY 2011
VL 110
IS 9
AR 093702
DI 10.1063/1.3657779
PG 4
WC Physics, Applied
SC Physics
GA 848OY
UT WOS:000297062100042
ER
PT J
AU Prochazka, J
Hlidek, P
Franc, J
Grill, R
Belas, E
Bugar, M
Babentsov, V
James, RB
AF Prochazka, J.
Hlidek, P.
Franc, J.
Grill, R.
Belas, E.
Bugar, M.
Babentsov, V.
James, R. B.
TI Selective pair luminescence in the 1.4-eV band of CdTe:In
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID OPTICAL-PROPERTIES; BULK CDTE; CADMIUM TELLURIDE; ACCEPTOR STATES;
EXCITED-STATES; DEFECTS; PHOTOLUMINESCENCE; SPECTROSCOPY; CRYSTALS; ZNSE
AB We investigated the photoluminescence (PL) of CdTe doped with indium using above- and below-bandgap excitation at temperatures of 4.5-20 K. We recorded and measured the selectively excited PL arising from the recombination of donor-acceptor (D-A) pairs with the A-center acceptor in the spectral region of the 1.4-eV PL band for different excitation photon energies, h omega(EXC). Sharp, strong PL lines that shifted with h omega(EXC) over the total contour of the D-A pair band represented the selective pair luminescence (SPL). The energy difference of similar to 125 meV between the excited-and ground-state of the charged D-A pair is very close to the 6-longitudinal-optical phonon energy in CdTe. This multiplicity favors the relaxation of an excited hole to the ground state of an acceptor, and increases the probability of recombination in the D-A pair. The SPL line quenches with temperature, characteristically with energy of 6-14 meV for D-A pairs with different D-A distances. The temperature shift of the 1.4-eV band supposedly is caused by the redistribution of occupied-and empty-shallow donors neighboring the A-center. (C) 2011 American Institute of Physics. [doi:10.1063/1.3658248]
C1 [Prochazka, J.; Hlidek, P.; Franc, J.; Grill, R.; Belas, E.; Bugar, M.] Charles Univ Prague, Inst Phys, Prague 12116 2, Czech Republic.
[Babentsov, V.] Natl Acad Sci, Inst Semicond Phys, UA-03028 Kiev, Ukraine.
[James, R. B.] Brookhaven Natl Lab, Nonproliferat & Natl Secur Dept, Upton, NY 11973 USA.
RP Prochazka, J (reprint author), Charles Univ Prague, Inst Phys, Ke Karlovu 5, Prague 12116 2, Czech Republic.
EM hlidek@karlov.mff.cuni.cz
RI Grill, Roman/A-2109-2008; Franc, Jan/C-3802-2017
OI Grill, Roman/0000-0002-4615-8909; Franc, Jan/0000-0002-9493-3973
FU Ministry of Education of the Czech Republic; Grant Agency of the Czech
Republic [102/09/H074]; U.S. Department of Energy, Office of
Nonproliferation Research and Engineering [NA-22]; [SVV-2010-261306]
FX This work was a part of the research plan MSM 0021620834 that was
financed by the Ministry of Education of the Czech Republic and was
partly supported by the Grant Agency of the Czech Republic under
Contract No. 102/09/H074. J. P. would like to thank the student Grant
No. SVV-2010-261306. One author (R. B. J.) gratefully acknowledges
support from the U. S. Department of Energy, Office of Nonproliferation
Research and Engineering, NA-22.
NR 26
TC 5
Z9 5
U1 3
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD NOV 1
PY 2011
VL 110
IS 9
AR 093103
DI 10.1063/1.3658248
PG 8
WC Physics, Applied
SC Physics
GA 848OY
UT WOS:000297062100003
ER
PT J
AU Sawyer, CA
Guzman, J
Boswell-Koller, CN
Sherburne, MP
Mastandrea, JP
Bustillo, KC
Ager, JW
Haller, EE
Chrzan, DC
AF Sawyer, C. A.
Guzman, J.
Boswell-Koller, C. N.
Sherburne, M. P.
Mastandrea, J. P.
Bustillo, K. C.
Ager, J. W., III
Haller, E. E.
Chrzan, D. C.
TI Modeling pulsed-laser melting of embedded semiconductor nanoparticles
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID GERMANIUM; SILICON; TIME
AB Pulsed-laser melting (PLM) is commonly used to achieve a fast quench rate in both thin films and nanoparticles. A model for the size evolution during PLM of nanoparticles confined in a transparent matrix, such as those created by ion-beam synthesis, is presented. A self-consistent mean-field rate equations approach that has been used successfully to model ion beam synthesis of germanium nanoparticles in silica is extended to include the PLM process. The PLM model includes classical optical absorption, multiscale heat transport by both analytical and finite difference methods, and melting kinetics for confined nanoparticles. The treatment of nucleation and coarsening behavior developed for the ion beam synthesis model is modified to allow for a nonuniform temperature gradient and for interacting liquid and solid particles with different properties. The model allows prediction of the particle size distribution after PLM under various laser fluences, starting from any particle size distribution including as-implanted or annealed simulated samples. A route for narrowing the size distribution of embedded nanoparticles is suggested, with simulated distribution widths as low as 15% of the average size. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3658265]
C1 [Sawyer, C. A.; Guzman, J.; Boswell-Koller, C. N.; Sherburne, M. P.; Mastandrea, J. P.; Bustillo, K. C.; Haller, E. E.; Chrzan, D. C.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Sawyer, C. A.; Guzman, J.; Boswell-Koller, C. N.; Sherburne, M. P.; Mastandrea, J. P.; Bustillo, K. C.; Ager, J. W., III; Haller, E. E.; Chrzan, D. C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Sawyer, CA (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
EM dcchrzan@berkeley.edu
OI Ager, Joel/0000-0001-9334-9751
FU Office of Science, Office of Basic Energy Sciences, Materials Sciences
and Engineering Division, of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX This work was supported by the Director, Office of Science, Office of
Basic Energy Sciences, Materials Sciences and Engineering Division, of
the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
NR 20
TC 2
Z9 2
U1 1
U2 16
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD NOV 1
PY 2011
VL 110
IS 9
AR 094307
DI 10.1063/1.3658265
PG 10
WC Physics, Applied
SC Physics
GA 848OY
UT WOS:000297062100099
ER
PT J
AU Seifter, A
Grover, M
Holtkamp, DB
Iverson, AJ
Stevens, GD
Turley, WD
Veeser, LR
Wilke, MD
Young, JA
AF Seifter, A.
Grover, M.
Holtkamp, D. B.
Iverson, A. J.
Stevens, G. D.
Turley, W. D.
Veeser, L. R.
Wilke, M. D.
Young, J. A.
TI Emissivity measurements of shocked tin using a multi-wavelength
integrating sphere
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID HIGH-SPEED; TEMPERATURE; PYROMETER
AB Pyrometric measurements of radiance to determine temperature have been performed on shock physics experiments for decades. However, multi-wavelength pyrometry schemes sometimes fail to provide credible temperatures in experiments, which incur unknown changes in sample emissivity, because an emissivity change also affects the spectral radiance. Hence, for shock physics experiments using pyrometry to measure temperatures, it is essential to determine the dynamic sample emissivity. The most robust way to determine the normal spectral emissivity is to measure the spectral normal-hemispherical reflectance using an integrating sphere. In this paper, we describe a multi-wavelength (1.6-5.0 mu m) integrating sphere system that utilizes a "reversed" scheme, which we use for shock physics experiments. The sample to be shocked is illuminated uniformly by scattering broadband light from inside a sphere onto the sample. A portion of the light reflected from the sample is detected at a point 12 deg from normal to the sample surface. For this experiment, we used the system to measure emissivity of shocked tin at four wavelengths for shock-stress values between 17 and 33GPa. The results indicate a large increase in effective emissivity upon shock release from tin when the shock is above 24-25GPa, a shock stress for which the sample is partially melted when the shock releases. We also recorded an IR image of one of the shocked samples through the integrating sphere, and the emissivity inferred from the image agreed well with the integrating-sphere, pyrometer-detector data. Here, we discuss experimental data, uncertainties, and a data analysis process. We also describe unique emissivity-measurement problems arising from shock experiments and methods to overcome such problems. (C) 2011 American Institute of Physics. [doi:10.1063/1.3656429]
C1 [Seifter, A.] European Patent Off, The Hague, Netherlands.
[Seifter, A.; Holtkamp, D. B.; Veeser, L. R.; Wilke, M. D.] Los Alamos Natl Lab, Grp P 23, Los Alamos, NM 87545 USA.
[Grover, M.; Stevens, G. D.; Turley, W. D.; Veeser, L. R.] Natl Secur Technol LLC, Special Technol Lab, Santa Barbara, CA 93111 USA.
[Iverson, A. J.; Young, J. A.] Natl Secur Technol LLC, Los Alamos Operat, Los Alamos, NM 87544 USA.
RP Seifter, A (reprint author), European Patent Off, The Hague, Netherlands.
EM a.seifter@gmx.net
FU National Security Technologies, LLC [DE-AC52-06NA25946]; U.S. Department
of Energy
FX We are very appreciative of the help from Boris Wilthan, who performed
the reference experiments and gave us extensive guidance on how to build
and use the ISR, and the support and advice of Russell Olson. We thank
Dennis Hayes, who provided us with his EOS calculations of the partially
melted tin temperatures. This manuscript has been authored by National
Security Technologies, LLC, under Contract No. DE-AC52-06NA25946 with
the U. S. Department of Energy. The United States Government retains and
the publisher, by accepting the article for publication, acknowledges
that the United States Government retains a nonexclusive, paid-up,
irrevocable, worldwide license to publish or reproduce the published
form of this manuscript, or allow others to do so, for United States
Government purposes.
NR 29
TC 4
Z9 4
U1 0
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD NOV 1
PY 2011
VL 110
IS 9
AR 093508
DI 10.1063/1.3656429
PG 10
WC Physics, Applied
SC Physics
GA 848OY
UT WOS:000297062100024
ER
PT J
AU Swaminathan, S
Sun, Y
Pianetta, P
McIntyre, PC
AF Swaminathan, Shankar
Sun, Yun
Pianetta, Piero
McIntyre, Paul C.
TI Ultrathin ALD-Al2O3 layers for Ge(001) gate stacks: Local composition
evolution and dielectric properties
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID CHEMICAL-VAPOR-DEPOSITION; OXIDE THIN-FILMS; DEVICE APPLICATIONS; STATE
DENSITY; AL2O3; INTERFACE; GE; GE(100); GERMANIUM; OXIDATION
AB Correlations among physical and electrical properties of atomic layer deposited (ALD)-Al2O3 on H2O-prepulsed Ge(100) have been investigated to evaluate Al2O3 as an ultrathin interface passivation layer for higher-k/Al2O3/Ge gate stacks. In situ XPS in the ALD environment provides insights into the local composition evolution during the initial stages of ALD, evidencing (a) an incubation regime that may limit the minimum achievable capacitance equivalent thickness (CET) of these gate stacks, and (b) residual hydroxyl incorporation in the film consistent with the observed dielectric constant similar to 7.2. Thickness scaling of the CET is consistent with a nearly abrupt interface as measured by synchrotron radiation photoemission spectroscopy (SRPES). SRPES studies also reveal that forming gas anneal provides passivation through monolayer-level formation of stoichiometric GeO2, suggesting a complex chemical interaction involving residual -OH groups in the as-grown ALD-Al2O3. Valence and conduction band offsets of prepulsed ALD-Al2O3 with respect to Ge are calculated to be 3.3 +/- 0.1 and 2.6 +/- 0.3 eV, indicating that these layers offer an effective barrier to hole and electron injection. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3647761]
C1 [Swaminathan, Shankar; McIntyre, Paul C.] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.
[Sun, Yun; Pianetta, Piero] SSRL, Menlo Pk, CA 94025 USA.
RP Swaminathan, S (reprint author), Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.
NR 46
TC 29
Z9 30
U1 3
U2 64
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD NOV 1
PY 2011
VL 110
IS 9
AR 094105
DI 10.1063/1.3647761
PG 6
WC Physics, Applied
SC Physics
GA 848OY
UT WOS:000297062100087
ER
PT J
AU Hagos, S
Leung, LR
AF Hagos, Samson
Leung, L. Ruby
TI Moist Thermodynamics of the Madden-Julian Oscillation in a
Cloud-Resolving Simulation
SO JOURNAL OF CLIMATE
LA English
DT Article
ID TROPICAL INTRASEASONAL OSCILLATION; GLOBAL PRECIPITATION; CONVECTION;
PARAMETERIZATION; MONSOON; MODEL; PACIFIC; VARIABILITY; CYCLONES;
DATASET
AB The moist thermodynamic processes that determine the time scale and energy of the Madden-Julian oscillation (MJO) are investigated using moisture and eddy available potential energy budget analyses on a cloud-resolving simulation. Two MJO episodes observed during the winter of 2007/08 are realistically simulated. During the inactive phase, moisture supplied by meridional moisture convergence and boundary layer diffusion generates shallow and congestus clouds that moisten the lower troposphere while horizontal mixing tends to dry it. As the lower troposphere is moistened, it becomes a source of moisture for the subsequent deep convection during the MJO active phase. As the active phase ends, the lower troposphere dries out primarily by condensation and horizontal divergence that dominates over the moisture supply by vertical transport. In the simulation, the characteristic time scales of convective vertical transport, mixing, and condensation of moisture in the midtroposphere are estimated to be about 2 days, 4 days, and 20 h respectively. The small differences among these time scales result in an effective time scale of MJO moistening of about 25 days, half the period of the simulated MJO. Furthermore, various cloud types have a destabilizing or damping effect on the amplitude of MJO temperature signals, depending on their characteristic latent heating profile and its temporal covariance with the temperature. The results are used to identify possible sources of the difficulties in simulating MJO in low-resolution models that rely on cumulus parameterizations.
C1 [Hagos, Samson; Leung, L. Ruby] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Hagos, S (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM samson.hagos@pnl.gov
RI hagos, samson /K-5556-2012
FU U.S. Department of Energy [DE-AC06-76RLO1830]
FX The authors thank Dr. William Gustafson for his comments and
suggestions. This work is supported by the U.S. Department of Energy
under the Atmospheric Systems Research Program. Computing resources for
the simulations are provided by the National Center for Computational
Sciences (NCCS) through the INCITE Climate End Station Project. Pacific
Northwest National Laboratory is operated by Battelle for the U.S.
Department of Energy under Contract DE-AC06-76RLO1830.
NR 40
TC 12
Z9 12
U1 0
U2 6
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0894-8755
J9 J CLIMATE
JI J. Clim.
PD NOV 1
PY 2011
VL 24
IS 21
BP 5571
EP 5583
DI 10.1175/2011JCLI4212.1
PG 13
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 841TE
UT WOS:000296535300007
ER
PT J
AU Chen, CF
Reagor, DW
Russell, SJ
Marksteiner, QR
Earley, LM
Dalmas, DA
Volz, HM
Guidry, DR
Papin, PA
Yang, P
AF Chen, Ching-Fong
Reagor, David W.
Russell, Steven J.
Marksteiner, Quinn R.
Earley, Lawrence M.
Dalmas, Dale A.
Volz, Heather M.
Guidry, Dennis R.
Papin, Pallas A.
Yang, Pin
TI Sol-Gel Processing and Characterizations of a Ba0.75Sr0.25Ti
0.95Zr0.05O3 Ceramic
SO JOURNAL OF THE AMERICAN CERAMIC SOCIETY
LA English
DT Article
ID THIN-FILMS; NANOCRYSTALLINE MATERIALS; GENERATION
AB A Ba0.75Sr0.25Ti0.95Zr0.05O3 ceramic was developed for use in nonlinear transmission line (NLTL) applications. The sol-gel process was used to synthesize Ba0.75Sr0.25Ti0.95Zr0.05O3 nanoparticles to achieve a uniform composition and a high surface area. Simultaneous thermal gravimetric analysis and differential thermal analysis (TGA/DTA) was used to identify the decomposition sequence as a function of temperature for the as-synthesized powders. The phase transformation was confirmed by X-ray diffraction (XRD). The calcined nanoparticles were hot-pressed at 1300 degrees C to achieve a high density. Microstructures were characterized using scanning electron microscopy (SEM). Several dielectric properties were measured and are reported.
C1 [Chen, Ching-Fong; Volz, Heather M.; Guidry, Dennis R.; Papin, Pallas A.] Los Alamos Natl Lab, Mat Sci Technol Div, Los Alamos, NM 87545 USA.
[Reagor, David W.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
[Russell, Steven J.; Marksteiner, Quinn R.; Earley, Lawrence M.; Dalmas, Dale A.] Los Alamos Natl Lab, Int Space & Response Div, Los Alamos, NM 87545 USA.
[Yang, Pin] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Chen, CF (reprint author), Los Alamos Natl Lab, Mat Sci Technol Div, POB 1663, Los Alamos, NM 87545 USA.
EM cchen@lanl.gov
FU Joint Non-Lethal Weapons Directorate (JNLWD) through the Office of Naval
Research [N0001409IP20094]; Sandia Corporation, a Lockheed Martin
Company, for the United States Department of Energy's National Nuclear
Security Administration [DE-AC04-94AL85000]
FX This program was financially supported by the Joint Non-Lethal Weapons
Directorate (JNLWD) through the Office of Naval Research, contract
#N0001409IP20094 to Los Alamos National Laboratory. 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 the contract DE-AC04-94AL85000.
NR 24
TC 8
Z9 8
U1 0
U2 8
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0002-7820
EI 1551-2916
J9 J AM CERAM SOC
JI J. Am. Ceram. Soc.
PD NOV
PY 2011
VL 94
IS 11
BP 3727
EP 3732
DI 10.1111/j.1551-2916.2011.04646.x
PG 6
WC Materials Science, Ceramics
SC Materials Science
GA 848CQ
UT WOS:000297026700025
ER
PT J
AU Dillon, SJ
Helmick, L
Miller, HM
Wilson, L
Gemman, R
Petrova, RV
Barmak, K
Rohrer, GS
Salvador, PA
AF Dillon, Shen J.
Helmick, Lam
Miller, Herbert M.
Wilson, Lane
Gemman, Randall
Petrova, Rumyana V.
Barmak, Katayun
Rohrer, Gregory S.
Salvador, Paul A.
TI The Orientation Distributions of Lines, Surfaces, and Interfaces around
Three-Phase Boundaries in Solid Oxide Fuel Cell Cathodes
SO JOURNAL OF THE AMERICAN CERAMIC SOCIETY
LA English
DT Article
ID WC-CO COMPOSITES; SOFC CATHODES; 3-DIMENSIONAL RECONSTRUCTION;
GRAIN-BOUNDARIES; (LA,SR)MNO3 ELECTRODES; MICROSTRUCTURE; POLARIZATION;
PERFORMANCE; ANODE; EBSD
AB Three-dimensional electron backscatter diffraction was used to measure the crystallographic distribution of the electrochemically relevant triple phase boundary lines and surfaces near them in SOFC cathodes made up of a porous mixture of yttria-stabilized zirconia and lanthanum strontium manganese oxide, both before and after mild electrochemical loading. All distributions were observed to be nearly isotropic, but nonrandom textures above the detection threshold were observed. The distributions differ between the two cells, as do the phase fractions and the electrochemical history. The different distributions are interpreted as evidence that steady-state distributions vary locally with phase fractions or that they evolve during the initial operation of the fuel cell. The rates at which triple lines, pore surfaces, and interface boundaries in the porous mixture approach a steady-state value appear to decrease with the average amount of mass transport required to reorient that specific feature. This work provides initial insights into the crystallography of interfaces in a multiphase ceramic material.
C1 [Helmick, Lam; Miller, Herbert M.; Petrova, Rumyana V.; Barmak, Katayun; Rohrer, Gregory S.; Salvador, Paul A.] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA.
[Dillon, Shen J.] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA.
[Helmick, Lam; Wilson, Lane; Gemman, Randall; Salvador, Paul A.] NETL, Morgantown, WV 26507 USA.
RP Salvador, PA (reprint author), Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA.
EM paulsalvador@cmu.edu
RI Barmak, Katayun/A-9804-2008; Salvador, Paul/A-9435-2011; dillon,
shen/N-1850-2013; INL, Citations/K-3436-2015; Rohrer,
Gregory/A-9420-2008
OI Barmak, Katayun/0000-0003-0070-158X; Salvador, Paul/0000-0001-7106-0017;
dillon, shen/0000-0002-6192-4026; INL, Citations/0000-0002-3745-5100;
Rohrer, Gregory/0000-0002-9671-3034
FU National Energy Technology Laboratory's on-going research in Materials
Science & Engineering: SOFC under the RDS [DE-AC26-04NT41817]; MRSEC of
the National Science Foundation [DMR-0520425]; Pennsylvania DCED
FX This work was supported by the National Energy Technology Laboratory's
on-going research in Materials Science & Engineering: SOFC under the RDS
contract DE-AC26-04NT41817. This work was partially supported by the
MRSEC program of the National Science Foundation under Award Number
DMR-0520425 and by the Pennsylvania DCED.
NR 58
TC 13
Z9 13
U1 1
U2 47
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0002-7820
J9 J AM CERAM SOC
JI J. Am. Ceram. Soc.
PD NOV
PY 2011
VL 94
IS 11
BP 4045
EP 4051
DI 10.1111/j.1551-2916.2011.04673.x
PG 7
WC Materials Science, Ceramics
SC Materials Science
GA 848CQ
UT WOS:000297026700073
ER
PT J
AU Chang, EKM
Lin, WY
AF Chang, Edmund K. M.
Lin, Wuyin
TI Comments on "The Role of the Central Asian Mountains on the Midwinter
Suppression of North Pacific Storminess"
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Editorial Material
ID WINTER STATIONARY WAVES; MODEL; TRACKS
C1 [Chang, Edmund K. M.] SUNY Stony Brook, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA.
[Lin, Wuyin] Brookhaven Natl Lab, Div Atmospher Sci, Upton, NY 11973 USA.
RP Chang, EKM (reprint author), SUNY Stony Brook, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA.
EM kmchang@notes.cc.sunysb.edu
NR 7
TC 1
Z9 1
U1 1
U2 3
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0022-4928
J9 J ATMOS SCI
JI J. Atmos. Sci.
PD NOV
PY 2011
VL 68
IS 11
BP 2800
EP 2803
DI 10.1175/JAS-D-11-021.1
PG 4
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 849PY
UT WOS:000297138800020
ER
PT J
AU Kalinin, S
Balke, N
Jesse, S
Tselev, A
Kumar, A
Arruda, TM
Guo, SL
Proksch, R
AF Kalinin, Sergei
Balke, Nina
Jesse, Stephen
Tselev, Alexander
Kumar, Amit
Arruda, Thomas M.
Guo, Senli
Proksch, Roger
TI Li-ion dynamics and reactivity on the nanoscale
SO MATERIALS TODAY
LA English
DT Review
ID ATOMIC-FORCE MICROSCOPY; ELEVATED-TEMPERATURES; NANOMETER RESOLUTION;
CHEMICAL EXPANSION; BATTERY CATHODE; THIN-FILMS; LITHIUM; TRANSPORT;
ELECTRODE; STRESS
AB Progress in the development and optimization of energy storage and conversion materials necessitates understanding their ionic and electrochemical functionality on the nanometer scale of single grain clusters, grains, or extended defects. Classical electrochemical strategies based on Faradaic current detection are fundamentally limited on the nanoscale. Here, we review principles and recent applications of electrochemical strain microscopy (ESM), a scanning probe microscopy (SPM) technique utilizing intrinsic coupling between ionic phenomena and molar volumes. ESM imaging, as well as time and voltage spectroscopies, are illustrated for several Li-ion cathode and anode materials. Finally, perspectives for future ESM developments and applications to other ionic systems are discussed.
C1 [Kalinin, Sergei; Balke, Nina; Jesse, Stephen; Tselev, Alexander; Kumar, Amit; Arruda, Thomas M.; Guo, Senli] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Proksch, Roger] Asylum Res Corp, Santa Barbara, CA USA.
RP Kalinin, S (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
EM sergei2@ornl.gov
RI Kumar, Amit/C-9662-2012; Tselev, Alexander/L-8579-2015; Balke,
Nina/Q-2505-2015; Jesse, Stephen/D-3975-2016; Arruda, Thomas/C-6134-2012
OI Kumar, Amit/0000-0002-1194-5531; Tselev, Alexander/0000-0002-0098-6696;
Balke, Nina/0000-0001-5865-5892; Jesse, Stephen/0000-0002-1168-8483;
Arruda, Thomas/0000-0002-6165-2024
FU Fluid Interface Reactions, Structures and Transport (FIRST) Center at
Oak Ridge National Laboratory, an Energy Frontier Research Center; U.S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
[ERKCC61]; Office of Science, Basic Energy Sciences, Division of User
Facilities; DOE SISGR
FX The effort by SVK and NB was supported as a part of the Fluid Interface
Reactions, Structures and Transport (FIRST) Center at Oak Ridge National
Laboratory, an Energy Frontier Research Center funded by the U.S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
under Award Number ERKCC61. Parts of this research (SJ, TMA, AK, AT)
were performed at the Center for Nanophase Materials Science sponsored
by the Office of Science, Basic Energy Sciences Program, Division of
User Facilities. TMA was supported in part by DOE SISGR program. The
authors are deeply grateful to J. Budai for valuable advice regarding
x-ray microprobe, and A. Borisevich and R. Unocic for multiple
discussion of STEM-SPM combinations.
NR 103
TC 26
Z9 26
U1 5
U2 118
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1369-7021
EI 1873-4103
J9 MATER TODAY
JI Mater. Today
PD NOV
PY 2011
VL 14
IS 11
BP 548
EP 558
PG 11
WC Materials Science, Multidisciplinary
SC Materials Science
GA 851GK
UT WOS:000297256200018
ER
PT J
AU Varbanova, M
Porter, K
Lu, FC
Ralph, J
Hammerschmidt, R
Jones, AD
Day, B
AF Varbanova, Marina
Porter, Katie
Lu, Fachuang
Ralph, John
Hammerschmidt, Ray
Jones, A. Daniel
Day, Brad
TI Molecular and Biochemical Basis for Stress-Induced Accumulation of Free
and Bound p-Coumaraldehyde in Cucumber
SO PLANT PHYSIOLOGY
LA English
DT Article
ID CINNAMYL-ALCOHOL-DEHYDROGENASE; LIGNIN BIOSYNTHESIS;
CLADOSPORIUM-CUCUMERINUM; SECONDARY METABOLISM; PHENOLIC-COMPOUNDS;
COUMARYL ALDEHYDE; DOWN-REGULATION; SQUASH FRUIT; ARABIDOPSIS;
RESISTANCE
AB To elucidate the genetic and biochemical regulation of elicitor-induced p-coumaraldehyde accumulation in plants, we undertook a multifaceted approach to characterize the metabolic flux through the phenylpropanoid pathway via the characterization and chemical analysis of the metabolites in the p-coumaryl, coniferyl, and sinapyl alcohol branches of this pathway. Here, we report the identification and characterization of four cinnamyl alcohol dehydrogenases (CADs) from cucumber (Cucumis sativus) with low activity toward p-coumaraldehyde yet exhibiting significant activity toward other phenylpropanoid hydroxycinnamaldehydes. As part of this analysis, we identified and characterized the activity of a hydroxycinnamoyl-coenzyme A: shikimate hydroxycinnamoyl transferase (HCT) capable of utilizing shikimate and p-coumaroyl-coenzyme A to generate p-coumaroyl shikimate. Following pectinase treatment of cucumber, we observed the rapid accumulation of p-coumaraldehyde, likely the result of low aldehyde reductase activity (i.e. alcohol dehydrogenase in the reverse reaction) of CsCAD enzymes on p-coumaraldehyde. In parallel, we noted a concomitant reduction in the activity of CsHCT. Taken together, our findings support the hypothesis that the up-regulation of the phenylpropanoid pathway upon abiotic stress greatly enhances the overall p-coumaryl alcohol branch of the pathway. The data presented here point to a role for CsHCT (as well as, presumably, p-coumarate 3-hydroxylase) as a control point in the regulation of the coniferyl and sinapyl alcohol branches of this pathway. This mechanism represents a potentially evolutionarily conserved process to efficiently and quickly respond to biotic and abiotic stresses in cucurbit plants, resulting in the rapid lignification of affected tissues.
C1 [Varbanova, Marina; Hammerschmidt, Ray; Day, Brad] Michigan State Univ, Dept Plant Pathol, E Lansing, MI 48824 USA.
[Porter, Katie; Hammerschmidt, Ray; Day, Brad] Michigan State Univ, Grad Program Cell & Mol Biol, E Lansing, MI 48824 USA.
[Jones, A. Daniel] Michigan State Univ, Dept Biochem & Mol Biol, E Lansing, MI 48824 USA.
[Jones, A. Daniel] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA.
[Lu, Fachuang; Ralph, John] Univ Wisconsin, Dept Biochem, Wisconsin Bioenergy Inst, Madison, WI 53726 USA.
[Lu, Fachuang; Ralph, John] Univ Wisconsin, Dept Energy, Great Lakes Bioenergy Res Ctr, Madison, WI 53726 USA.
RP Day, B (reprint author), Michigan State Univ, Dept Plant Pathol, E Lansing, MI 48824 USA.
EM bday@msu.edu
RI Jones, Arthur/C-2670-2013;
OI Jones, Arthur/0000-0002-7408-6690; Day, Brad/0000-0002-9880-4319
FU National Science Foundation [IOS-0641319, DBI-0619489]; Michigan State
University [GR09-092]; Department of Energy Great Lakes Bioenergy
Research Center (Department of Energy Office of Science) [BER
DE-FC02-07ER64494]
FX This work was supported by the National Science Foundation (CAREER award
no. IOS-0641319 to B. D. and Major Research Instrument grant no.
DBI-0619489 to A.D.J.), by Michigan State University (GREEEN award no.
GR09-092 to B. D. and AgBioResearch award to R. H. and B. D.), and by
the Department of Energy Great Lakes Bioenergy Research Center
(Department of Energy Office of Science award no. BER DE-FC02-07ER64494
to J.R.).
NR 45
TC 3
Z9 6
U1 2
U2 21
PU AMER SOC PLANT BIOLOGISTS
PI ROCKVILLE
PA 15501 MONONA DRIVE, ROCKVILLE, MD 20855 USA
SN 0032-0889
J9 PLANT PHYSIOL
JI Plant Physiol.
PD NOV
PY 2011
VL 157
IS 3
BP 1056
EP 1066
DI 10.1104/pp.111.184358
PG 11
WC Plant Sciences
SC Plant Sciences
GA 844BL
UT WOS:000296722300008
PM 21940999
ER
PT J
AU Lu, SY
Zhao, HY
Parsons, EP
Xu, CC
Kosma, DK
Xu, XJ
Chao, D
Lohrey, G
Bangarusamy, DK
Wang, G
Bressan, RA
Jenks, MA
AF Lu, Shiyou
Zhao, Huayan
Parsons, Eugene P.
Xu, Changcheng
Kosma, Dylan K.
Xu, Xiaojing
Chao, Daiyin
Lohrey, Gregory
Bangarusamy, Dhinoth K.
Wang, Guangchao
Bressan, Ray A.
Jenks, Matthew A.
TI The glossyhead1 Allele of ACC1 Reveals a Principal Role for Multidomain
Acetyl-Coenzyme A Carboxylase in the Biosynthesis of Cuticular Waxes by
Arabidopsis
SO PLANT PHYSIOLOGY
LA English
DT Article
ID FATTY-ACID ELONGATION; ATP-CITRATE LYASE; EMBRYO DEVELOPMENT; COA
CARBOXYLASE; A CARBOXYLASE; GENE-EXPRESSION; GURKE GENE; THALIANA;
METABOLISM; EPIDERMIS
AB A novel mutant of Arabidopsis (Arabidopsis thaliana), having highly glossy inflorescence stems, postgenital fusion in floral organs, and reduced fertility, was isolated from an ethyl methanesulfonate-mutagenized population and designated glossyhead1 (gsd1). The gsd1 locus was mapped to chromosome 1, and the causal gene was identified as a new allele of Acetyl-Coenzyme A Carboxylase1 (ACC1), a gene encoding the main enzyme in cytosolic malonyl-coenzyme A synthesis. This, to our knowledge, is the first mutant allele of ACC1 that does not cause lethality at the seed or early germination stage, allowing for the first time a detailed analysis of ACC1 function in mature tissues. Broad lipid profiling of mature gsd1 organs revealed a primary role for ACC1 in the biosynthesis of the very-long-chain fatty acids (C-20:0 or longer) associated with cuticular waxes and triacylglycerols. Unexpectedly, transcriptome analysis revealed that gsd1 has limited impact on any lipid metabolic networks but instead has a large effect on environmental stress-responsive pathways, especially senescence and ethylene synthesis determinants, indicating a possible role for the cytosolic malonyl-coenzyme A-derived lipids in stress response signaling.
C1 [Jenks, Matthew A.] Agr Res Serv, US Arid Land Agr Res Ctr, USDA, Maricopa, AZ 85138 USA.
[Lu, Shiyou; Zhao, Huayan; Bangarusamy, Dhinoth K.; Wang, Guangchao; Bressan, Ray A.] King Abdullah Univ Sci & Technol, Ctr Plant Stress Genom & Technol, Thuwal 239556900, Saudi Arabia.
[Parsons, Eugene P.; Xu, Xiaojing; Chao, Daiyin; Lohrey, Gregory; Bressan, Ray A.] Purdue Univ, Dept Hort & Landscape Architecture, W Lafayette, IN 47907 USA.
[Xu, Changcheng] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
[Kosma, Dylan K.] Michigan State Univ, Dept Plant Biol, E Lansing, MI 48824 USA.
RP Jenks, MA (reprint author), Agr Res Serv, US Arid Land Agr Res Ctr, USDA, Maricopa, AZ 85138 USA.
EM matt.jenks@ars.usda.gov
RI Chao, Daiyin/A-5213-2013
FU Purdue University Electron Microscopy Center
FX We are grateful to Dr. Masao Tasaka (Nara Institute of Science and
Technology) for providing emb22 and acc1-3 seeds. We also thank Debra
Sherman and Chia-Ping Huang of the Purdue University Electron Microscopy
Center for support.
NR 45
TC 22
Z9 23
U1 1
U2 26
PU AMER SOC PLANT BIOLOGISTS
PI ROCKVILLE
PA 15501 MONONA DRIVE, ROCKVILLE, MD 20855 USA
SN 0032-0889
J9 PLANT PHYSIOL
JI Plant Physiol.
PD NOV
PY 2011
VL 157
IS 3
BP 1079
EP 1092
DI 10.1104/pp.111.185132
PG 14
WC Plant Sciences
SC Plant Sciences
GA 844BL
UT WOS:000296722300010
PM 21949210
ER
PT J
AU Zhang, YHP
AF Zhang, Y. -H. Percival
TI What is vital (and not vital) to advance economically-competitive
biofuels production
SO PROCESS BIOCHEMISTRY
LA English
DT Review
DE Biofuels; Biomass conversion; Cellulase engineering; Energy density;
Energy efficiency analysis; Non-point energy source; Prime mover;
Synthetic biology
ID DIETARY MANNAN-OLIGOSACCHARIDES; RECHARGEABLE LITHIUM BATTERIES;
CAPACITY CELLULOSIC ADSORBENT; SYNTHETIC ENZYMATIC PATHWAY; GLYCOSIDE
HYDROLASE FAMILY; PENTOSE-PHOSPHATE PATHWAY; LIGNOCELLULOSE
FRACTIONATION; FUEL ETHANOL; CLOSTRIDIUM-THERMOCELLUM; INDUSTRIAL
APPLICATIONS
AB Since biofuels is a hot topic, many researchers new to this field are eager to propose different solutions while they often seem not to have full understanding of the current status of technologies and numerous (hidden) constraints. As a result, the general public, policymakers, academic researchers, and industrial developers have been assaulted by a wave of biased, misinterpreted, or outright false information. In reality, only a small fraction of exploding biofuels R&D teams are addressing vital rather than trivial challenges associated with economically production of advanced biofuels. Biofuels R&D is not a completely basic science project; instead, it is a typical goal-oriented (engineering) project because so many constraints prevent economically competitive production of most advanced biofuels and are expected to do so in the future. In this opinion paper, I present some basic rules and facts in thermodynamics, physical chemistry, and special constraints in the transport sector, sort through and challenge some claimed breakthroughs or new directions, and identify vital topics to advance biofuels in the short and long terms. Simply speaking, energy efficiency is the most important long-term criterion whereas cost is the most important short-term criterion; eventually thermodynamics determines economics. For light-duty passenger vehicles, which consume similar to 60% transportation fuels, cellulosic ethanol and butanol are the best short- and middle-term biofuels, whereas sugary hydrogen would be the ultimate biofuel in the long term. The top three priorities of biofuels R&D are (i) cost-effective release of sugars from lignocellulose, (ii) co-utilization of lignocellulose components for the production of value-added compounds that subsidize whole biorefineries, and (iii) enhancing the biomass-to-kinetic energy efficiency from conversions to prime movers through a potential evolutionary scenario from ethanol or butanol/internal combustion engines (ICE) to ethanol/hybrid diesel-like ICE to sugar hydrogen fuel cell vehicles. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Zhang, Y. -H. Percival] Virginia Tech, Dept Biol Syst Engn, Blacksburg, VA 24061 USA.
[Zhang, Y. -H. Percival] Virginia Tech, ICTAS, Blacksburg, VA 24061 USA.
[Zhang, Y. -H. Percival] DOE BioEnergy Sci Ctr BESC, Oak Ridge, TN 37831 USA.
[Zhang, Y. -H. Percival] Gate Fuels Inc, Blacksburg, VA 24060 USA.
RP Zhang, YHP (reprint author), Virginia Tech, Dept Biol Syst Engn, 210-A Seitz Hall, Blacksburg, VA 24061 USA.
EM ypzhang@vt.edu
FU Air Force Office of Scientific Research; DOE Bioenergy Science Center
(BESC); VT USDA Biodesign and Bioprocess Center; China National Special
Fund for Key Laboratories [2060204]; Office of Biological and
Environmental Research in the DOE Office of Science
FX This work was supported by the Air Force Office of Scientific Research,
DOE Bioenergy Science Center (BESC), VT USDA Biodesign and Bioprocess
Center, and China National Special Fund for Key Laboratories (No.
2060204). The BioEnergy Science Center is a U.S. Department of Energy
Bioenergy Research Center supported by the Office of Biological and
Environmental Research in the DOE Office of Science. The materials
expressed in this article represent the author's personal opinion and
not those of the AFOSR, DOE, or USDA.
NR 203
TC 55
Z9 55
U1 1
U2 80
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1359-5113
J9 PROCESS BIOCHEM
JI Process Biochem.
PD NOV
PY 2011
VL 46
IS 11
BP 2091
EP 2110
DI 10.1016/j.procbio.2011.08.005
PG 20
WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Engineering, Chemical
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Engineering
GA 850ZF
UT WOS:000297237400002
ER
PT J
AU Gang, O
Zhang, YG
AF Gang, Oleg
Zhang, Yugang
TI Shaping Phases by Phasing Shapes
SO ACS NANO
LA English
DT Editorial Material
ID NANOPARTICLE SUPERLATTICES; EMERGING APPLICATIONS; BUILDING-BLOCKS; DNA;
PARTICLES; STIMULUS
AB Incorporation of shape-shifting building blocks Into self-assembled systems has emerged as a promising concept for dynamic structural control. The computational work by Nguyen et al. reported in this issue of ACS Nano examines the phase reconfigurations and kinetic pathways for systems built from shape-shifting building blocks. The studies illustrate several unique properties of such systems, including more efficient packings, novel structures that are distinctive from those obtained through conventional self-assembly, and reversible multistep shape-shifting pathways. The proposed assembly strategy is potentially applicable to a diverse range of systems because it relies on a change of geometrical constraints, which are common across all length scales. Recent developments in the areas of responsive materials and self-assembly methods provide feasible platforms for experimental realizations of shape-shifting reconfigurations; such systems might enable the next generation of dynamically switchable materials and reconfigurable devices.
C1 [Gang, Oleg; Zhang, Yugang] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Gang, O (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
EM ogang@bnl.gov
NR 36
TC 21
Z9 21
U1 2
U2 46
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
J9 ACS NANO
JI ACS Nano
PD NOV
PY 2011
VL 5
IS 11
BP 8459
EP 8465
DI 10.1021/nn2041363
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 849RR
UT WOS:000297143300003
PM 22103256
ER
PT J
AU Park, SM
Liang, XG
Harteneck, BD
Pick, TE
Hiroshiba, N
Wu, Y
Helms, BA
Olynick, DL
AF Park, Sang-Min
Liang, Xiaogan
Harteneck, Bruce D.
Pick, Teresa E.
Hiroshiba, Nobuya
Wu, Ying
Helms, Brett A.
Olynick, Deirdre L.
TI Sub-10 nm Nanofabrication via Nanoimprint Directed Self-Assembly of
Block Copolymers
SO ACS NANO
LA English
DT Article
DE block copolymer self-assembly; directed self-assembly; nanoimprint
lithography; nanolithography; nanofabrication
ID DIBLOCK COPOLYMERS; THIN-FILMS; LITHOGRAPHY; PHOTORESIST; PATTERNS;
SURFACE; ARRAYS; GRAPHOEPITAXY; CONFINEMENT; FABRICATION
AB Directed self-assembly (DSA) of block copolymers (BCPs), either by selective wetting of surface chemical prepatterns or by graphoepitaxial alignment with surface topography, has ushered in a new era for high-resolution nanopatterning. These pioneering approaches, while effective, require expensive and time-consuming lithographic patterning of each substrate to direct the assembly. To overcome this shortcoming, nanoimprint molds-attainable via low-cost optical lithography-were Investigated for their potential to be reusable and efficiently template the assembly of block copolymers (BCPs) while under complete confinement. Nanoimprint directed self-assembly conveniently avoids repetitive and expensive chemical or topographical prepatterning of substrates. To demonstrate this technique for high-resolution nanofabrication, we aligned sub-10 nm resolution nanopatterns using a cylinder-forming, organic-inorganic hybrid block copolymer, polystyrene-block-polydimethylsiloxane (PS-b-PDMS). Nanopatterns derived from oxidized PDMS microdomains were successfully transferred Into the underlying substrate using plasma etching. In the development phase of this procedure, we investigated the role of mold treatments and pattern geometries as DSA of BCPs are driven by interfacial chemistry and physics. In the optimized route, silicon molds treated with PDMS surface brushes promoted rapid BCP alignment and reliable mold release while appropriate mold geometries provided a single layer of cylinders and negligible residual layers as required for pattern transfer. Molds thus produced were reusable to the same efficacy between nanoimprints. We also demonstrated that shear flow during the nanoimprint process enhanced the alignment of the BCP near open edges, which may be engineered in future schemes to control the BCP microdomain alignment kinetics during DSA.
C1 [Park, Sang-Min; Liang, Xiaogan; Harteneck, Bruce D.; Pick, Teresa E.; Hiroshiba, Nobuya; Wu, Ying; Helms, Brett A.; Olynick, Deirdre L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
[Wu, Ying] Oxford Instruments Amer Inc, Concord, MA 01742 USA.
RP Olynick, DL (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM bahelms@lbl.gov; dlolynick@lbl.gov
RI Hiroshiba, Nobuya/E-8128-2010;
OI Hiroshiba, Nobuya/0000-0003-3459-150X; Helms, Brett/0000-0003-3925-4174
FU Office of Science, Office of Basic Energy Sciences, Materials Sciences
and Engineering Division, of the U.S. Department of Energy
[DE-AC02-05CH11231]; Japan Society for the Promotion of Science (JSPS);
[22-1624]
FX This work was supported by the Director, Office of Science, Office of
Basic Energy Sciences, Materials Sciences and Engineering Division, of
the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. N.H.
was supported by the Japan Society for the Promotion of Science (JSPS)
Research Fellowships for Young Scientists and the Grant-in-Aid for JSPS
Fellows (No. 22-1624).
NR 46
TC 77
Z9 77
U1 13
U2 137
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
J9 ACS NANO
JI ACS Nano
PD NOV
PY 2011
VL 5
IS 11
BP 8523
EP 8531
DI 10.1021/nn201391d
PG 9
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 849RR
UT WOS:000297143300009
PM 21995511
ER
PT J
AU Luo, JY
Jang, HD
Sun, T
Xiao, L
He, Z
Katsoulidis, AP
Kanatzidis, MG
Gibson, JM
Huang, JX
AF Luo, Jiayan
Jang, Hee Dong
Sun, Tao
Xiao, Li
He, Zhen
Katsoulidis, Alexandros P.
Kanatzidis, Mercouri G.
Gibson, J. Murray
Huang, Jiaxing
TI Compression and Aggregation-Resistant Particles of Crumpled Soft Sheets
SO ACS NANO
LA English
DT Article
DE graphene; graphene oxide; aerosol; capillary compression; crumpling;
strain hardening; aggregation-resistant particles
ID GRAPHENE-BASED SHEETS; GRAPHITE OXIDE; ULTRACAPACITORS; CONFORMATIONS;
REDUCTION
AB Unlike flat sheets, crumpled paper balls have both high free volume and high compressive strength, and can tightly pack without significantly reducing the area of accessible surface. Such properties would be highly desirable for sheet-like materials such as graphene, since they tend to aggregate in solution and restack in the solid state, making their properties highly dependent on the material processing history. Here we report the synthesis of crumpled graphene balls by capillary compression in rapidly evaporating aerosol droplets. The crumpled particles are stabilized by locally folded, pi-pi stacked ridges as a result of plastic deformation, and do not unfold or collapse during common processing steps. In addition, they are remarkably aggregation-resistant in either solution or solid state, and remain largely intact and redispersible after chemical treatments, wet processing, annealing, and even pelletizing at high pressure. For example, upon compression at 55 MPa, the regular flat graphene sheets turn into nondispersible chunks with drastically reduced surface area by 84%, while the crumpled graphene particles can still maintain 45% of their original surface area and remain readily dispersible in common solvents. Therefore, crumpled particles could help to standardize graphene-based materials by delivering more stable properties such as high surface area and solution processability regardless of material processing history. This should greatly benefit applications using bulk quantities of graphene, such as in energy storage or conversion devices. As a proof of concept, we demonstrate that microbial fuel electrodes modified by the crumpled particles indeed outperform those modified with their flat counterparts.
C1 [Luo, Jiayan; Jang, Hee Dong; Huang, Jiaxing] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
[Sun, Tao; Gibson, J. Murray] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Xiao, Li; He, Zhen] Univ Wisconsin, Dept Civil Engn & Mech, Milwaukee, WI 53211 USA.
[Katsoulidis, Alexandros P.; Kanatzidis, Mercouri G.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Jang, Hee Dong] Korea Inst Geosci & Mineral Resources, Dept Ind Mat Res, Taejon 305350, South Korea.
[Gibson, J. Murray] Northeastern Univ, Coll Sci, Boston, MA 02115 USA.
RP Huang, JX (reprint author), Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
EM Jiaxing-huang@northwestern.edu
RI Wei, Zhanhua/D-7544-2013; He, Zhen/D-1275-2009; Huang,
Jiaxing/A-9417-2012; Huang, Jiaxing/B-7521-2009; Gibson,
Murray/E-5855-2013; Luo, Jiayan/A-9927-2011
OI Wei, Zhanhua/0000-0003-2687-0293; He, Zhen/0000-0001-6302-6556; Gibson,
Murray/0000-0002-0807-6224;
FU Robert R. McCormick School of Engineering and Applied Science at
Northwestern University; Korea Institute of Geoscience and Mineral
Resources (KIGAM); Ministry of Knowledge Economy of Korea; Alfred P.
Sloan Foundation; NSF [0955612]; Sony Corporation; 3M; University of
Wisconsin-Milwaukee; DOE-EERE [DE-FG36-08GO18137/A001]; U.S. Department
of Energy Office of Science Laboratory [DE-AC02-06CH11357]; UChicago
Argonne, LLC; NSF-NSEC; NSF-MRSEC; Keck Foundation; State of Illinois;
Northwestern University
FX This work was mainly supported by the new faculty startup fund (J.H.)
from the Robert R. McCormick School of Engineering and Applied Science
at Northwestern University and the General Project of the Korea
Institute of Geoscience and Mineral Resources (KIGAM) (H.D.J.) funded by
the Ministry of Knowledge Economy of Korea. Additional supports are
provided from The Alfred P. Sloan Foundation, NSF (DMR CAREER 0955612)
and The Sony Corporation (J.H.). J.L. thanks 3M for a graduate
fellowship. Z.H. thanks the faculty start fund at the University of
Wisconsin-Milwaukee. M.G.K. thanks DOE-EERE (Grant No.
DE-FG36-08GO18137/A001) for support. The STEM study was accomplished at
the Electron Microscopy Center for Materials Research at Argonne
National Laboratory, a U.S. Department of Energy Office of Science
Laboratory operated under Contract No. DE-AC02-06CH11357 by UChicago
Argonne, LLC. We thank the NUANCE Center, which is supported by
NSF-NSEC, NSF-MRSEC, Keck Foundation, the State of Illinois, and
Northwestern University for use of their microscopy and materials
analysis facilities.
NR 32
TC 212
Z9 215
U1 29
U2 234
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
J9 ACS NANO
JI ACS Nano
PD NOV
PY 2011
VL 5
IS 11
BP 8943
EP 8949
DI 10.1021/nn203115u
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 849RR
UT WOS:000297143300055
PM 21995602
ER
PT J
AU Wu, P
Huang, JS
Meunier, V
Sumpter, BG
Qiao, R
AF Wu, Peng
Huang, Jingsong
Meunier, Vincent
Sumpter, Bobby G.
Qiao, Rui
TI Complex Capacitance Scaling in Ionic Liquids-Filled Nanopores
SO ACS NANO
LA English
DT Article
DE supercapacitor; electrical double layer; room-temperature ionic liquids;
anomalous enhancement; nanopores; transmission line model
ID DOUBLE-LAYER CAPACITOR; CARBON SUPERCAPACITORS; MOLECULAR SIMULATION;
ELECTROLYTES; GRAPHENE; SURFACE
AB Recent experiments have shown that the capacitance of subnanometer pores increases anomalously as the pore width decreases, thereby opening a new avenue for developing supercapacitors with enhanced energy density. However, this behavior is still subject to some controversy since its physical origins are not well understood. Using atomistic simulations, we show that the capacitance of slit-shaped nanopores in contact with room-temperature ionic liquids exhibits a U-shaped scaling behavior In pores with widths from 0.75 to 1.26 nm. The left branch of the capacitance scaling curve directly corresponds to the anomalous capacitance Increase and thus reproduces the experimental observations. The right branch of the curve Indirectly agrees with experimental findings that so far have received little attention. The overall U-shaped scaling behavior provides insights on the origins of the difficulty in experimentally observing the pore-width-dependent capacitance. We establish a theoretical framework for understanding the capacitance of electrical double layers in nanopores and provide mechanistic details into the origins of the observed scaling behavior. The framework highlights the critical role of "ion solvation" in controlling pore capacitance and the importance of choosing anion/cation couples carefully for optimal energy storage in a given pore system.
C1 [Wu, Peng; Qiao, Rui] Clemson Univ, Dept Mech Engn, Clemson, SC 29634 USA.
[Huang, Jingsong; Sumpter, Bobby G.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Huang, Jingsong; Sumpter, Bobby G.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
[Meunier, Vincent] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA.
RP Qiao, R (reprint author), Clemson Univ, Dept Mech Engn, Clemson, SC 29634 USA.
EM rqiao@clemson.edu
RI Qiao, Rui/B-2350-2009; Sumpter, Bobby/C-9459-2013; Huang,
Jingsong/A-2789-2008; wu, peng/P-7688-2014;
OI Qiao, Rui/0000-0001-5219-5530; Sumpter, Bobby/0000-0001-6341-0355;
Huang, Jingsong/0000-0001-8993-2506; wu, peng/0000-0002-2360-6414;
Meunier, Vincent/0000-0002-7013-179X
FU NSF [CBET-0756496]; Oak Ridge National Laboratory (ORNL); Center for
Nanophase Materials Sciences; ORNL by the Office of Basic Energy
Sciences, U.S. Department of Energy
FX The authors thank the Clemson-CCIT office for providing computer time.
The Clemson authors acknowledge support from NSF under Grant No.
CBET-0756496. R.Q. and V.M. were partially supported by an appointment
to the HERE program for faculty at the Oak Ridge National Laboratory
(ORNL) administered by ORISE. The authors at ORNL acknowledge the
support from the Center for Nanophase Materials Sciences, which is
sponsored at ORNL by the Office of Basic Energy Sciences, U.S.
Department of Energy.
NR 26
TC 90
Z9 90
U1 9
U2 111
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
J9 ACS NANO
JI ACS Nano
PD NOV
PY 2011
VL 5
IS 11
BP 9044
EP 9051
DI 10.1021/nn203260w
PG 8
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 849RR
UT WOS:000297143300066
PM 22017626
ER
PT J
AU Kim, Y
Kumar, A
Tselev, A
Kravchenko, II
Han, H
Vrejoiu, I
Lee, W
Hesse, D
Alexe, M
Kalinin, SV
Jesset, S
AF Kim, Yunseok
Kumar, Amit
Tselev, Alexander
Kravchenko, Ivan I.
Han, Hee
Vrejoiu, Ionela
Lee, Woo
Hesse, Dietrich
Alexe, Marin
Kalinin, Sergei V.
Jesset, Stephen
TI Nonlinear Phenomena in Multiferroic Nanocapacitors: Joule Heating and
Electromechanical Effects
SO ACS NANO
LA English
DT Article
DE multiferroic nanocapacitor; conduction; nonlinear response; Joule
heating; PFM
ID THIN-FILM CAPACITORS; FERROELECTRIC CAPACITORS; FATIGUE BEHAVIOR;
LEAKAGE CURRENT; DOMAIN-WALLS; TEMPERATURE; MICROSCOPY; CONDUCTION;
POLARIZATION; ELECTRODES
AB We demonstrate an approach for probing nonlinear electromechanical responses in BiFeO3 thin film nanocapacitors using half-harmonic band excitation piezoresponse force microscopy (PFM). Nonlinear PFM Images of nanocapacitor arrays show clearly visible clusters of capacitors associated with variations of local leakage current through the BiFeO3 film. Strain spectroscopy measurements and finite element modeling point to significance of the Joule heating and show that the thermal effects caused by the Joule heating can provide nontrivial contributions to the nonlinear electromechanical responses in ferroic nanostructures. This approach can be further extended to unambiguous mapping of electrostatic signal contributions to PFM and related techniques.
C1 [Kim, Yunseok; Kumar, Amit; Tselev, Alexander; Kravchenko, Ivan I.; Kalinin, Sergei V.; Jesset, Stephen] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Han, Hee; Lee, Woo] Korea Res Inst Stand & Sci, Taejon 305340, South Korea.
[Vrejoiu, Ionela; Hesse, Dietrich; Alexe, Marin] Max Planck Inst Microstruct Phys, D-06120 Halle, Saale, Germany.
RP Kim, Y (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
EM kimy4@ornl.gov; sergei2@ornl.gov
RI Lee, Woo/B-5268-2008; Kumar, Amit/C-9662-2012; Kalinin,
Sergei/I-9096-2012; Kravchenko, Ivan/K-3022-2015; Tselev,
Alexander/L-8579-2015; Jesse, Stephen/D-3975-2016; Alexe,
Marin/K-3882-2016
OI Lee, Woo/0000-0003-4560-8901; Kumar, Amit/0000-0002-1194-5531; Kalinin,
Sergei/0000-0001-5354-6152; Kravchenko, Ivan/0000-0003-4999-5822;
Tselev, Alexander/0000-0002-0098-6696; Jesse,
Stephen/0000-0002-1168-8483; Alexe, Marin/0000-0002-0386-3026
FU Oak Ridge National Laboratory by the Office of Basic Energy Sciences,
U.S. Department of Energy
FX This research was conducted at the Center for Nanophase Materials
Sciences, which is sponsored at Oak Ridge National Laboratory by the
Office of Basic Energy Sciences, U.S. Department of Energy.
NR 46
TC 28
Z9 28
U1 4
U2 65
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
J9 ACS NANO
JI ACS Nano
PD NOV
PY 2011
VL 5
IS 11
BP 9104
EP 9112
DI 10.1021/nn203342v
PG 9
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 849RR
UT WOS:000297143300072
PM 21955139
ER
PT J
AU Yee, SK
Sun, JB
Darancet, P
Tilley, TD
Majumdar, A
Neaton, JB
Segalman, RA
AF Yee, Shannon K.
Sun, Jibin
Darancet, Pierre
Tilley, T. Don
Majumdar, Arun
Neaton, Jeffrey B.
Segalman, Rachel A.
TI Inverse Rectification in Donor-Acceptor Molecular Heterojunctions
SO ACS NANO
LA English
DT Article
DE molecular diode; inverse rectification; donor-acceptor molecule;
single-molecule conductance
ID SELF-ASSEMBLED MONOLAYERS; ATOMIC-FORCE MICROSCOPY; ELECTRICAL
RECTIFICATION; GOLD ELECTRODES; JUNCTIONS; SURFACES; CONDUCTANCE;
RECTIFIERS; CIRCUITS
AB The transport properties of a junction consisting of small donor-acceptor molecules bound to Au electrodes are studied and understood in terms of its hybrid donor-acceptor-electrode interfaces. A newly synthesized donor-acceptor molecule consisting of a bithiophene donor and a naphthalenediimide acceptor separated by a conjugated phenylacetylene bridge and a nonconjugated end group shows rectification in the reverse polarization, behavior opposite to that observed in mesoscopic p-n junctions. Solution-based spectroscopic measurements demonstrate that the molecule retains many of its original constituent properties, suggesting a weak hybridization between the wave functions of the donor and acceptor moieties, even in the presence of a conjugated bridge. Differential conductance measurements for biases as high as 1.5 V are reported and indicate a large asymmetry in the orbital contributions to transport arising from disproportionate electronic coupling at anode-donor and acceptor-cathode interfaces. A semi-empirical single Lorentzian coherent transport model, developed from experimental data and density functional theory based calculations, is found to explain the inverse rectification.
C1 [Darancet, Pierre; Neaton, Jeffrey B.] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
[Yee, Shannon K.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
[Sun, Jibin; Segalman, Rachel A.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.
[Sun, Jibin; Tilley, T. Don] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Majumdar, Arun] US DOE, ARPA E, Washington, DC 20585 USA.
RP Neaton, JB (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
EM jbneaton@lbl.gov; segalman@berkeley.edu
RI Neaton, Jeffrey/F-8578-2015;
OI Neaton, Jeffrey/0000-0001-7585-6135; Segalman,
Rachel/0000-0002-4292-5103
FU Helios Solar Energy Research Center; Office of Science, Office of Basic
Energy Sciences of the U.S. Department of Energy [DE-AC02-05CH11231];
Fannie and John Hertz Foundation
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 U.S. Department of Energy under Contract No.
DE-AC02-05CH11231. We would also like to thank the Fannie and John Hertz
Foundation for their fellowship support for S.Y. We are also extremely
grateful for conversations with Peter Doak (LBNL), Jon Malen (CMU), and
Pramod Reddy and his students Aaron Tan, Woochul Lee, Seid Sadat, and
Won Ho Jeong (U. Mich).
NR 28
TC 45
Z9 45
U1 5
U2 42
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
EI 1936-086X
J9 ACS NANO
JI ACS Nano
PD NOV
PY 2011
VL 5
IS 11
BP 9256
EP 9263
DI 10.1021/nn203520v
PG 8
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 849RR
UT WOS:000297143300090
PM 22010940
ER
PT J
AU Cresti, A
Lopez-Bezanilla, A
Ordejon, P
Roche, S
AF Cresti, Alessandro
Lopez-Bezanilla, Alejandro
Ordejon, Pablo
Roche, Stephan
TI Oxygen Surface Functionalization of Graphene Nanoribbons for Transport
Gap Engineering
SO ACS NANO
LA English
DT Article
DE graphene nanoribbons; functionalization; quantum transport; mobility
gap; numerical simulation
ID CARBON NANOTUBES; TRANSISTORS
AB We numerically investigate the impact of epoxide adsorbates on the transport properties of graphene nanoribbons with width varying from a few nanometers to 15 nm. For the wider ribbons, a scaling analysis of conductance properties Is performed for adsorbate density ranging from 0.1% to 0.5%. Oxygen atoms Introduce a large electron-hole transport asymmetry' with mean free paths changing by up to 1 order of magnitude, depending on the hole or electron nature of charge carriers. The opening of a transport gap on the electron side for GNRs as wide as 15 nm could be further exploited to control current flow and achieve larger ON/OFF ratios, despite the initially small intrinsic energy gap. The effect of the adsorbates in narrow ribbons is also Investigated by full ab initio calculations to explore the limit of ultimate downsized systems. In this case, the inhomogeneous distribution of adsorbates and their interplay with the ribbon edge are found to play an Important role.
C1 [Cresti, Alessandro] IMEP LAHC UMR CNRS INPG UJF 5130, Grenoble INP Minatec, F-38016 Grenoble, France.
[Lopez-Bezanilla, Alejandro] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Ordejon, Pablo] CIN2 CSIC ICN Barcelona, E-08193 Barcelona, Spain.
[Roche, Stephan] CIN2 ICN CSIC, Bellaterra 08193, Barcelona, Spain.
[Roche, Stephan] Univ Autonoma Barcelona, Catalan Inst Nanotechnol, Bellaterra 08193, Barcelona, Spain.
[Roche, Stephan] Inst Catalana Recerca & Estudis Avancats, ICREA, Barcelona 08010, Spain.
RP Cresti, A (reprint author), IMEP LAHC UMR CNRS INPG UJF 5130, Grenoble INP Minatec, 3 Parvis Louis Neel,BP 257, F-38016 Grenoble, France.
EM crestial@minatec.inpg.fr
RI Roche, Stephan/B-1116-2012; Cresti, Alessandro/C-8795-2012; Ordejon,
Pablo/D-3091-2014; Lopez-Bezanilla, Alejandro/B-9125-2015
OI Roche, Stephan/0000-0003-0323-4665; Cresti,
Alessandro/0000-0002-1326-2515; Ordejon, Pablo/0000-0002-2353-2793;
Lopez-Bezanilla, Alejandro/0000-0002-4142-2360
FU European Commission [228398]; Office of Science of the U.S. Department
of Energy [DE-AC0500OR22750]; Center for Nanophase Materials Sciences
(CNMS); Oak Ridge National Laboratory, Division of Scientific User
Facilities, U.S; Fondation Nanosciences; Spanish MICINN
[FIS2009-12721-C04-01]; [ANR-09-NANO-016-01]
FX The work has been performed under the HPC-EUROPA2 project (project no.
228398) with the support of the European Commission-Capacities
Area-Research Infrastructures. This research used resources of the
National Center for Computational Sciences at Oak Ridge National
Laboratory, which is supported by the Office of Science of the U.S.
Department of Energy under Contract No. DE-AC0500OR22750. We are also
grateful for the support from the Center for Nanophase Materials
Sciences (CNMS), sponsored at Oak Ridge National Laboratory by the
Division of Scientific User Facilities, U.S. S.R. acknowledges the
NANOSIM-GRAPHENE Project No. ANR-09-NANO-016-01. A.C. acknowledges the
support of Fondation Nanosciences via the RTRA Dispograph project. P.O.
acknowledges support from Spanish MICINN Grant No. FIS2009-12721-C04-01.
NR 33
TC 16
Z9 16
U1 0
U2 38
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
J9 ACS NANO
JI ACS Nano
PD NOV
PY 2011
VL 5
IS 11
BP 9271
EP 9277
DI 10.1021/nn203573y
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 849RR
UT WOS:000297143300092
PM 21985521
ER
PT J
AU Jedrzejczak, R
Wang, JW
Dauter, M
Szczesny, RJ
Stepien, PP
Dauter, Z
AF Jedrzejczak, Robert
Wang, Jiawei
Dauter, Miroslawa
Szczesny, Roman J.
Stepien, Piotr P.
Dauter, Zbigniew
TI Human Suv3 protein reveals unique features among SF2 helicases
SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
LA English
DT Article
ID YEAST MITOCHONDRIAL DEGRADOSOME; RNA HELICASE; RNA/DNA HELICASE; MODEL;
SURVEILLANCE; HYDROLYSIS; REFINEMENT; METABOLISM; MECHANISM; PATHWAY
AB Suv3 is a helicase that is involved in efficient turnover and surveillance of RNA in eukaryotes. In vitro studies show that human Suv3 (hSuv3) in complex with human polynucleotide phosphorylase has RNA degradosome activity. The enzyme is mainly localized in mitochondria, but small fractions are found in cell nuclei. Here, two X-ray crystallographic structures of human Suv3 in complex with AMPPNP, a nonhydrolysable analog of ATP, and with a short five-nucleotide strand of RNA are presented at resolutions of 2.08 and 2.9 angstrom, respectively. The structure of the enzyme is very similar in the two complexes and consists of four domains. Two RecA-like domains form the tandem typical of all helicases from the SF2 superfamily which together with the C-terminal all-helical domain makes a ring structure through which the nucleotide strand threads. The mostly helical N-terminal domain is positioned externally with respect to the core of the enzyme. Most of the typical helicase motifs are present in hSuv3, but the protein shows certain unique characteristics, suggesting that Suv3 enzymes may constitute a separate subfamily of helicases.
C1 [Szczesny, Roman J.; Stepien, Piotr P.] Warsaw Univ, Dept Genet & Biotechnol, PL-02106 Warsaw, Poland.
[Jedrzejczak, Robert; Dauter, Zbigniew] NCI, Synchrotron Radiat Res Sect, Argonne Natl Lab, Argonne, IL 60439 USA.
[Jedrzejczak, Robert] Argonne Natl Lab, Midw Ctr Struct Genom, Biosci Div, Argonne, IL 60439 USA.
[Wang, Jiawei; Dauter, Miroslawa] SAIC Frederick Inc, Basic Res Program, Argonne Natl Lab, Argonne, IL 60439 USA.
[Wang, Jiawei] Tsinghua Univ, Struct Biol Ctr, Sch Life Sci, Beijing 100084, Peoples R China.
[Wang, Jiawei] Tsinghua Univ, Sch Med, Beijing 100084, Peoples R China.
[Szczesny, Roman J.; Stepien, Piotr P.] Polish Acad Sci, Inst Biochem & Biophys, PL-02106 Warsaw, Poland.
RP Stepien, PP (reprint author), Warsaw Univ, Dept Genet & Biotechnol, Pawinskiego 5A, PL-02106 Warsaw, Poland.
EM stepien@ibb.waw.pl; dauter@anl.gov
FU Polish National Centre for Research and Development [NR 13004704]; NIH,
National Cancer Institute, Center for Cancer Research; National Cancer
Institute, National Institutes of Health [HHSN261200800001]; US
Department of Energy, Office of Science, Office of Basic Energy Sciences
[W-31-109-Eng-38]
FX This work was supported in part by the Polish National Centre for
Research and Development (NR 13004704) and the Intramural Research
Program of the NIH, National Cancer Institute, Center for Cancer
Research and with Federal funds from the National Cancer Institute,
National Institutes of Health (Contract No. HHSN261200800001). The
content of this publication does not necessarily reflect the views or
policies of the Department of Health and Human Services, nor does the
mention of trade names, commercial products or organizations imply
endorsement by the US Government. Use of the Advanced Photon Source was
supported by the US Department of Energy, Office of Science, Office of
Basic Energy Sciences under Contract No. W-31-109-Eng-38.
NR 38
TC 7
Z9 7
U1 0
U2 7
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0907-4449
J9 ACTA CRYSTALLOGR D
JI Acta Crystallogr. Sect. D-Biol. Crystallogr.
PD NOV
PY 2011
VL 67
BP 988
EP 996
DI 10.1107/S0907444911040248
PN 11
PG 9
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Biophysics; Crystallography
SC Biochemistry & Molecular Biology; Biophysics; Crystallography
GA 844XW
UT WOS:000296787400011
PM 22101826
ER
PT J
AU Johnson, GE
Wang, C
Priest, T
Laskin, J
AF Johnson, Grant E.
Wang, Chongmin
Priest, Thomas
Laskin, Julia
TI Monodisperse Au-11 Clusters Prepared by Soft Landing of Mass Selected
Ions
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID TRANSMISSION ELECTRON-MICROSCOPY; MONOLAYER-PROTECTED CLUSTERS; SIMPLE
METAL-CLUSTERS; GOLD NANOPARTICLES; CO OXIDATION; THIN-FILMS; KDA GOLD;
SIZE; SURFACES; SHAPE
AB Preparation of clean monodisperse samples of clusters and nanoparticles for characterization using cutting-edge analytical techniques is essential to understanding their size-dependent properties. Herein, we report a general method for the preparation of high surface coverage samples of monodisperse clusters containing an exact number of atoms. Polydisperse solutions of diphosphine-capped gold clusters were produced by reduction synthesis. Electrospray ionization was used to introduce the clusters into the gas phase where they were filtered by mass-to-charge ratio allowing clusters of a selected size to be deposited onto carbon coated copper grids at well controlled kinetic energies. Scanning transmission electron microscopy (STEM) analysis of the soft landed clusters confirms their monodispersity and high coverage on the substrate. The soft landing approach may be extended to other materials compatible with an array of available ionization techniques and, therefore, has widespread utility as a means for controlled preparation of monodisperse samples of nanoparticles and clusters for analysis by transmission electron microscopy (TEM).
C1 [Johnson, Grant E.; Priest, Thomas; Laskin, Julia] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
[Wang, Chongmin] Pacific NW Natl Lab, WR Wiley Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Johnson, GE (reprint author), Pacific NW Natl Lab, Div Chem & Mat Sci, POB 999,MSIN K8-88, Richland, WA 99352 USA.
EM Grant.Johnson@pnnl.gov; Julia.Laskin@pnnl.gov
RI Laskin, Julia/H-9974-2012;
OI Laskin, Julia/0000-0002-4533-9644; Johnson, Grant/0000-0003-3352-4444
FU Chemical Sciences Division, Office of Basic Energy Sciences of the U.S.
Department of Energy (DOE); Laboratory Directed Research and Development
Program at the Pacific Northwest National Laboratory (PNNL); U.S. DOE of
Biological and Environmental Research and located at PNNL; DOE Science
Undergraduate Laboratory Internship (SULI) at Pacific Northwest National
Laboratory (PNNL)
FX The authors acknowledge support for this research by a grant from the
Chemical Sciences Division, Office of Basic Energy Sciences of the U.S.
Department of Energy (DOE), and the Laboratory Directed Research and
Development Program at the Pacific Northwest National Laboratory (PNNL).
This work was performed at the W. R Wiley Environmental Molecular
Sciences Laboratory (EMSL), a national scientific user facility
sponsored by the U.S. DOE of Biological and Environmental Research and
located at PNNL. PNNL is operated by Battelle for the U.S. DOE. T.P.
acknowledges support from the DOE Science Undergraduate Laboratory
Internship (SULI) program at Pacific Northwest National Laboratory
(PNNL).
NR 58
TC 31
Z9 31
U1 4
U2 47
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0003-2700
J9 ANAL CHEM
JI Anal. Chem.
PD NOV 1
PY 2011
VL 83
IS 21
BP 8069
EP 8072
DI 10.1021/ac202520p
PG 4
WC Chemistry, Analytical
SC Chemistry
GA 837TE
UT WOS:000296225300006
PM 21970542
ER
PT J
AU Kreutz, JE
Munson, T
Huynh, T
Shen, F
Du, WB
Ismagilov, RF
AF Kreutz, Jason E.
Munson, Todd
Huynh, Toan
Shen, Feng
Du, Wenbin
Ismagilov, Rustem F.
TI Theoretical Design and Analysis of Multivolume Digital Assays with Wide
Dynamic Range Validated Experimentally with Microfluidic Digital PCR
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID POLYMERASE-CHAIN-REACTION; PROBABLE-NUMBER-PCR; TIME RT-PCR; VIRAL LOAD;
DETECTION LIMITS; AMPLIFICATION; QUANTIFICATION; SAMPLES; DROPLETS;
BACTERIA
AB This paper presents a protocol using theoretical methods and free software to design and analyze multivolume digital PCR (MV digital PCR) devices; the theory and software are also applicable to design and analysis of dilution series in digital PCR MV digital PCR minimizes the total number of wells required for "digital" (single (single molecule) measurements while maintaining high dynamic range and high resolution. In some examples, multivolume designs with fewer than 200 total wells are predicted to provide dynamic range with 5-fold resolution similar to that of single-volume designs requiring 12 000 wells. Mathematical techniques were utilized and expanded to maximize the information obtained from each experiment and to quantify performance of devices and were experimentally validated using the SlipChip platform. MV digital PCR was demonstrated to perform reliably, and results from wells of different volumes agreed with one another. No artifacts due to different surface-to-volume ratios were observed, and single molecule amplification in volumes ranging from 1 to 125 nL was self-consistent. The device presented here was designed to meet the testing requirements for measuring clinically relevant levels of HIV viral load at the point-of-care (in plasma, <500 molecules/mL to >1000 000 molecules/mL), and the predicted resolution and dynamic range was experimentally validated using a control sequence of DNA. This approach simplifies digital PCR experiments, saves space, and thus enables multiplexing using separate areas for each sample on one chip, and facilitates the development of new high-performance diagnostic tools for resource-limited applications. The theory and software presented here are general and are applicable to designing and analyzing other digital analytical platforms including digital immunoassays and digital bacterial analysis. It is not limited to SlipChip and could also be useful for the design of systems on platforms including valve-based and droplet-based platforms. In a separate publication by Shen et al. (J. Am. Chem. Soc., 2011, DOI: 10.1021/ja2060116), this approach is used to design and test digital RT-PCR devices for quantifying RNA.
C1 [Kreutz, Jason E.; Huynh, Toan; Shen, Feng; Du, Wenbin; Ismagilov, Rustem F.] Univ Chicago, Dept Chem, Chicago, IL 60637 USA.
[Kreutz, Jason E.; Huynh, Toan; Shen, Feng; Du, Wenbin; Ismagilov, Rustem F.] Univ Chicago, Inst Biophys Dynam, Chicago, IL 60637 USA.
[Munson, Todd] Argonne Natl Lab, Argonne, IL 60439 USA.
[Munson, Todd] Univ Chicago, Computat Inst, Chicago, IL 60637 USA.
RP Ismagilov, RF (reprint author), CALTECH, Div Chem & Chem Engn, 1200 E Calif Blvd, Pasadena, CA 91125 USA.
EM rustem.admin@caltech.edu
RI Du, Wenbin/E-7276-2010
OI Du, Wenbin/0000-0002-7401-1410
FU NIH [1 DP1 OD003584, 1R01 EB012946]; Office of Advanced Scientific
Computing Research, Office of Science, U.S. Department of Energy
[DE-AC02-06CH11357]
FX This work was supported by the NIH Director's Pioneer Award program,
part of the NIH Roadmap for Medical Research (1 DP1 OD003584) and NIH
Grant No. 1R01 EB012946 administered by the National Institute of
Biomedical Imaging and Bioengineering and the Office of Advanced
Scientific Computing Research, Office of Science, U.S. Department of
Energy, under Contract DE-AC02-06CH11357. We thank Mary-Sara McPeek,
Margaret Loudermilk, and Ian Foster for helpful discussion of the
statistical analysis. Disclosure: F.S. and R.F.I. have a financial
interest in SlipChip LLC.
NR 70
TC 44
Z9 45
U1 5
U2 69
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0003-2700
J9 ANAL CHEM
JI Anal. Chem.
PD NOV 1
PY 2011
VL 83
IS 21
BP 8158
EP 8168
DI 10.1021/ac201658s
PG 11
WC Chemistry, Analytical
SC Chemistry
GA 837TE
UT WOS:000296225300019
PM 21981344
ER
PT J
AU Liu, C
Luo, Y
Maxwell, EJ
Fang, N
Chen, DDY
AF Liu, Chang
Luo, Yong
Maxwell, E. Jane
Fang, Ning
Chen, David D. Y.
TI Potential of Two-Dimensional Electro-Fluid-Dynamic Devices for
Continuous Purification of Multiple Components from Complex Samples
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID COUNTERBALANCED CAPILLARY-ELECTROPHORESIS; ZONE-ELECTROPHORESIS;
SEPARATIONS
AB Two-dimensional electro-fluid-dynamic (EFD) devices,. in which both electric field and hydrodynamic pressure are used to drive the analyte and fluid migration, enable two-dimensional channel networks to be used for chemical separation instead of one-dimensional column separation systems. Investigation of the theory of mass transfer in symmetrical Y-shaped EFD devices shows that the magnitude of pressure-induced velocity in lateral channels at critical boundary conditions between different steady state migration paths is independent of the channel cross-sectional area ratio. Therefore, the analyte has four possible mass transfer pathways according to the electric held and pressure setup in all symmetrical Y-shaped 2-D EFD devices, and such devices with any cross-sectional area ratio have the capacity to continuously purify two analytes from a mixture simultaneously. In addition, a new format of multiple-branched 2-D EFD devices is introduced to process multiple analytes. A "proof-reading" mechanism based on the infinite resolution conditions ensures the purity of the components collected. The separation processes are simulated by COMSOL Multiphysics, and the migration behavior of the analytes was monitored using fluorescent dyes to verify the flow behavior of different analytes in individual channels. These 2-D EFD devices offer the potential of continuous fractionation and purification of analytes from complex sample mixtures.
C1 [Liu, Chang; Maxwell, E. Jane; Chen, David D. Y.] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada.
[Luo, Yong] Dalian Univ Technol, Sch Pharmaceut Sci & Technol, Dalian 116023, Liaoning, Peoples R China.
[Fang, Ning] Iowa State Univ, Ames Lab, US DOE, Dept Chem, Ames, IA 50011 USA.
RP Chen, DDY (reprint author), Univ British Columbia, Dept Chem, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
EM chen@chem.ubc.ca
RI Liu, Chang/F-5472-2011; Chen, David/B-4849-2012; Fang, Ning/A-8456-2011;
OI Chen, David/0000-0002-3669-6041; Liu, Chang/0000-0003-0508-4357
FU Natural Sciences and Engineering Research Council (NSERC) of Canada;
Office of Basic Energy Sciences, Division of Chemical Sciences, U.S.
Department of Energy (DOE); Iowa State University [EF-AC02-07CH11358];
Chemistry, UBC
FX D.D.Y.C. was supported by the Natural Sciences and Engineering Research
Council (NSERC) of Canada, and N.F. was supported by the Director of
Science, Office of Basic Energy Sciences, Division of Chemical Sciences,
U.S. Department of Energy (DOE). The Ames Laboratory is operated for DOE
by Iowa State University under Contract No. EF-AC02-07CH11358. C.L.
thanks the support from the Agnes and Gilbert Hooley Scholarship in
Chemistry, UBC.
NR 18
TC 2
Z9 2
U1 4
U2 34
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0003-2700
J9 ANAL CHEM
JI Anal. Chem.
PD NOV 1
PY 2011
VL 83
IS 21
BP 8208
EP 8214
DI 10.1021/ac201859f
PG 7
WC Chemistry, Analytical
SC Chemistry
GA 837TE
UT WOS:000296225300025
PM 21923103
ER
PT J
AU Mills, E
AF Mills, Evan
TI Commissioning High-Tech Facilities
SO ASHRAE JOURNAL
LA English
DT Article
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Mills, E (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
FU California Energy Commission through the U.S. Department of Energy
[DE-AC02-05CH11231]
FX This work was sponsored by the California Energy Commission, Public
Interest Energy Research Program, through the U.S. Department of Energy
under Contract No. DE-AC02-05CH11231. Steve Greenberg and Geoffrey Bell
collected data for the ALS and Molecular Foundry case studies. Three
anonymous reviewers provided useful comments.
NR 13
TC 0
Z9 0
U1 0
U2 2
PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC,
PI ATLANTA
PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA
SN 0001-2491
J9 ASHRAE J
JI ASHRAE J.
PD NOV
PY 2011
VL 53
IS 11
BP 18
EP +
PG 6
WC Thermodynamics; Construction & Building Technology; Engineering,
Mechanical
SC Thermodynamics; Construction & Building Technology; Engineering
GA 848EX
UT WOS:000297034400011
ER
PT J
AU Cooperman, A
Dieckmann, J
Brodrick, J
AF Cooperman, Alissa
Dieckmann, John
Brodrick, James
TI Drain Water Heat Recovery
SO ASHRAE JOURNAL
LA English
DT Editorial Material
C1 [Cooperman, Alissa; Dieckmann, John] TIAX LLC, Mech Syst Grp, Lexington, MA 02421 USA.
[Brodrick, James] US DOE, Bldg Technol Program, Washington, DC USA.
RP Cooperman, A (reprint author), TIAX LLC, Mech Syst Grp, Lexington, MA 02421 USA.
NR 6
TC 1
Z9 1
U1 2
U2 6
PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC,
PI ATLANTA
PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA
SN 0001-2491
J9 ASHRAE J
JI ASHRAE J.
PD NOV
PY 2011
VL 53
IS 11
BP 58
EP +
PG 3
WC Thermodynamics; Construction & Building Technology; Engineering,
Mechanical
SC Thermodynamics; Construction & Building Technology; Engineering
GA 848EX
UT WOS:000297034400015
ER
PT J
AU Koch, E
Kolasa, R
AF Koch, Ed
Kolasa, Roy
TI Getting Smart On the Electrical Grid
SO ASHRAE JOURNAL
LA English
DT Article
C1 [Koch, Ed] Lawrence Berkeley Natl Lab LBNL, OpenADR Stand Working Grp, Berkeley, CA USA.
NR 2
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC,
PI ATLANTA
PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA
SN 0001-2491
J9 ASHRAE J
JI ASHRAE J.
PD NOV
PY 2011
VL 53
IS 11
BP B29
EP +
PG 5
WC Thermodynamics; Construction & Building Technology; Engineering,
Mechanical
SC Thermodynamics; Construction & Building Technology; Engineering
GA 848EX
UT WOS:000297034400021
ER
PT J
AU Abazajian, KN
Calabrese, E
Cooray, A
De Bernardis, F
Dodelson, S
Friedland, A
Fuller, GM
Hannestad, S
Keating, BG
Linder, EV
Lunardini, C
Melchiorri, A
Miquel, R
Pierpaoli, E
Pritchard, J
Serra, P
Takada, M
Wong, YYY
AF Abazajian, K. N.
Calabrese, E.
Cooray, A.
De Bernardis, F.
Dodelson, S.
Friedland, A.
Fuller, G. M.
Hannestad, S.
Keating, B. G.
Linder, E. V.
Lunardini, C.
Melchiorri, A.
Miquel, R.
Pierpaoli, E.
Pritchard, J.
Serra, P.
Takada, M.
Wong, Y. Y. Y.
TI Cosmological and astrophysical neutrino mass measurements
SO ASTROPARTICLE PHYSICS
LA English
DT Review
DE Neutrinos; Cosmology
ID LYMAN-ALPHA FOREST; DIGITAL SKY SURVEY; EQUATION-OF-STATE; POWER
SPECTRUM; CONCORDANCE MODEL; PRESSURE SUPPORT; DARK-MATTER; PARAMETERS;
REIONIZATION; SIMULATIONS
AB Cosmological and astrophysical measurements provide powerful constraints on neutrino masses complementary to those from accelerators and reactors. Here we provide a guide to these different probes, for each explaining its physical basis, underlying assumptions, current and future reach. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Dodelson, S.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
[Abazajian, K. N.] Univ Maryland, Dept Phys, Maryland Ctr Fundamental Phys, College Pk, MD 20742 USA.
[Calabrese, E.; Melchiorri, A.] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy.
[Calabrese, E.; Melchiorri, A.] Univ Roma La Sapienza, Ist Nazl Fis Nucl, I-00185 Rome, Italy.
[Cooray, A.; De Bernardis, F.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
[Dodelson, S.] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA.
[Dodelson, S.] Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Friedland, A.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Fuller, G. M.; Keating, B. G.] Univ Calif San Diego, Dept Phys, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA.
[Hannestad, S.] Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C, Denmark.
[Linder, E. V.] Berkeley Lab, Berkeley, CA 94720 USA.
[Linder, E. V.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Linder, E. V.] Ewha Womans Univ, Inst Early Universe WCU, Seoul, South Korea.
[Lunardini, C.] Arizona State Univ, Tempe, AZ 85287 USA.
[Miquel, R.] Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain.
[Miquel, R.] Inst Fis Altes Energies, E-08193 Bellaterra, Barcelona, Spain.
[Pierpaoli, E.] Univ So Calif, Dept Phys & Astron, Los Angeles, CA 90089 USA.
[Pritchard, J.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Serra, P.] NASA, Astrophys Branch, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Takada, M.] Univ Tokyo, IPMU, Chiba 2778582, Japan.
[Wong, Y. Y. Y.] Rhein Westfal TH Aachen, Inst Theoret Teilchenphys & Kosmol, D-52056 Aachen, Germany.
RP Dodelson, S (reprint author), Univ Chicago, Dept Astron & Astrophys, 5640 S Ellis Ave, Chicago, IL 60637 USA.
EM Dodelson@fnal.gov
RI Takada, Masahiro/A-4364-2011; Serra, Paolo/G-9678-2014;
OI Serra, Paolo/0000-0002-7609-3931; Melchiorri,
Alessandro/0000-0001-5326-6003; Pritchard, Jonathan/0000-0003-4127-5353;
Miquel, Ramon/0000-0002-6610-4836; Pierpaoli, Elena/0000-0002-7957-8993
NR 81
TC 85
Z9 85
U1 0
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-6505
J9 ASTROPART PHYS
JI Astropart Phys.
PD NOV
PY 2011
VL 35
IS 4
BP 177
EP 184
DI 10.1016/j.astropartphys.2011.07.002
PG 8
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 846XU
UT WOS:000296937300003
ER
PT J
AU Welsh, WF
Orosz, JA
Aerts, C
Brown, TM
Brugamyer, E
Cochran, WD
Gilliland, RL
Guzik, JA
Kurtz, DW
Latham, DW
Marcy, GW
Quinn, SN
Zima, W
Allen, C
Batalha, NM
Bryson, S
Buchhave, LA
Caldwell, DA
Gautier, TN
Howell, SB
Kinemuchi, K
Ibrahim, KA
Isaacson, H
Jenkins, JM
Prsa, A
Still, M
Street, R
Wohler, B
Koch, DG
Borucki, WJ
AF Welsh, William F.
Orosz, Jerome A.
Aerts, Conny
Brown, Timothy M.
Brugamyer, Erik
Cochran, William D.
Gilliland, Ronald L.
Guzik, Joyce Ann
Kurtz, D. W.
Latham, David W.
Marcy, Geoffrey W.
Quinn, Samuel N.
Zima, Wolfgang
Allen, Christopher
Batalha, Natalie M.
Bryson, Steve
Buchhave, Lars A.
Caldwell, Douglas A.
Gautier, Thomas N., III
Howell, Steve B.
Kinemuchi, K.
Ibrahim, Khadeejah A.
Isaacson, Howard
Jenkins, Jon M.
Prsa, Andrej
Still, Martin
Street, Rachel
Wohler, Bill
Koch, David G.
Borucki, William J.
TI KOI-54: THE KEPLER DISCOVERY OF TIDALLY EXCITED PULSATIONS AND
BRIGHTENINGS IN A HIGHLY ECCENTRIC BINARY
SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
LA English
DT Article
DE binaries: close; binaries: spectroscopic; stars: individual (KID
8112039, HD 187091, 2MASS J19461553+4356513); stars: oscillations;
stars: variables: general
ID CLOSE BINARIES; INITIAL CHARACTERISTICS; SPECTROSCOPIC BINARIES; ORBITAL
PARAMETERS; CADENCE DATA; STELLAR; SYSTEMS; EVOLUTION; OPACITIES;
SCIENCE
AB Kepler observations of the star HD 187091 (KIC 8112039, hereafter KOI-54) revealed a remarkable light curve exhibiting sharp periodic brightening events every 41.8 days with a superimposed set of oscillations forming a beating pattern in phase with the brightenings. Spectroscopic observations revealed that this is a binary star with a highly eccentric orbit, e = 0.83. We are able to match the Kepler light curve and radial velocities with a nearly face-on (i = 5 degrees.5) binary star model in which the brightening events are caused by tidal distortion and irradiation of nearly identical A stars during their close periastron passage. The two dominant oscillations in the light curve, responsible for the beating pattern, have frequencies that are the 91st and 90th harmonic of the orbital frequency. The power spectrum of the light curve, after removing the binary star brightening component, reveals a large number of pulsations, 30 of which have a signal-to-noise ratio greater than or similar to 7. Nearly all of these pulsations have frequencies that are either integer multiples of the orbital frequency or are tidally split multiples of the orbital frequency. This pattern of frequencies unambiguously establishes the pulsations as resonances between the dynamic tides at periastron and the free oscillation modes of one or both of the stars. KOI-54 is only the fourth star to show such a phenomenon and is by far the richest in terms of excited modes.
C1 [Welsh, William F.; Orosz, Jerome A.] San Diego State Univ, Dept Astron, San Diego, CA 92182 USA.
[Aerts, Conny; Zima, Wolfgang] Katholieke Univ Leuven, Inst Sterrenkunde, B-3001 Louvain, Belgium.
[Aerts, Conny; Zima, Wolfgang] Univ Nijmegen, Dept Astrophys, IMAPP, NL-6500 GL Nijmegen, Netherlands.
[Brown, Timothy M.; Street, Rachel] Las Cumbres Observ Global Telescope, Goleta, CA 93117 USA.
[Brown, Timothy M.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
[Brugamyer, Erik; Cochran, William D.] Univ Texas Austin, McDonald Observ, Austin, TX 78712 USA.
[Brugamyer, Erik; Cochran, William D.] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA.
[Gilliland, Ronald L.] Space Telescope Sci Inst, Baltimore, MD 21218 USA.
[Guzik, Joyce Ann] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Kurtz, D. W.] Univ Cent Lancashire, Jeremiah Horrocks Inst Astrophys, Preston PR1 2HE, Lancs, England.
[Latham, David W.; Quinn, Samuel N.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Marcy, Geoffrey W.; Isaacson, Howard] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA.
[Allen, Christopher; Ibrahim, Khadeejah A.; Wohler, Bill] NASA, Orbital Sci Corp, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Batalha, Natalie M.] San Jose State Univ, Dept Phys & Astron, San Jose, CA 95192 USA.
[Buchhave, Lars A.] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark.
[Buchhave, Lars A.] Univ Copenhagen, Ctr Star & Planet Format, Nat Hist Museum Denmark, DK-1350 Copenhagen, Denmark.
[Caldwell, Douglas A.; Jenkins, Jon M.] SETI Inst, Mountain View, CA 94043 USA.
[Gautier, Thomas N., III] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Kinemuchi, K.; Still, Martin] Bay Area Environm Res Inst Inc, Sonoma, CA 95476 USA.
[Prsa, Andrej] Villanova Univ, Dept Astron & Astrophys, Villanova, PA 19085 USA.
RP Welsh, WF (reprint author), San Diego State Univ, Dept Astron, San Diego, CA 92182 USA.
EM wfw@sciences.sdsu.edu
RI Caldwell, Douglas/L-7911-2014;
OI Caldwell, Douglas/0000-0003-1963-9616; Buchhave, Lars
A./0000-0003-1605-5666
FU NASA, Science Mission Directorate; NASA [NNX08AR14G]; European Research
Council under the European Community [227224]; W.M. Keck Foundation
FX Kepler was selected as the 10th mission of the Discovery Program.
Funding for this mission is provided by NASA, Science Mission
Directorate. The authors acknowledge support from the Kepler
Participating Scientists Program via NASA grant NNX08AR14G. C.A. and
W.Z. received funding from the European Research Council under the
European Community's Seventh Framework Programme (FP7/2007-2013)/ERC
grant agreement No. 227224 (PROSPERITY). Some of the data presented
herein were obtained at the W. M. Keck Observatory, which is operated as
a scientific partnership among the California Institute of Technology,
the University of California, and the National Aeronautics and Space
Administration. The Observatory was made possible by the generous
financial support of the W. M. Keck Foundation. We thank Gur Windmiller
for general assistance and for a careful reading of this manuscript. We
especially thank the many members of the Kepler team whose hard work
made these observation possible. Finally, we thank the anonymous referee
for a thorough review of this paper.
NR 38
TC 69
Z9 69
U1 0
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0067-0049
EI 1538-4365
J9 ASTROPHYS J SUPPL S
JI Astrophys. J. Suppl. Ser.
PD NOV
PY 2011
VL 197
IS 1
AR 4
DI 10.1088/0067-0049/197/1/4
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 846BO
UT WOS:000296872400004
ER
PT J
AU Pai, SS
Hammouda, B
Hong, KL
Pozzo, DC
Przybycien, TM
Tilton, RD
AF Pai, Sheetal S.
Hammouda, Boualem
Hong, Kunlun
Pozzo, Danilo C.
Przybycien, Todd M.
Tilton, Robert D.
TI The Conformation of the Poly(ethylene glycol) Chain in Mono-PEGylated
Lysozyme and Mono-PEGylated Human Growth Hormone
SO BIOCONJUGATE CHEMISTRY
LA English
DT Article
ID SMALL-ANGLE SCATTERING; POLYETHYLENE-GLYCOL; PROTEIN PEGYLATION; PLGA
MICROSPHERES; X-RAY; HEMOGLOBIN; ADSORPTION; ENCAPSULATION;
RIBONUCLEASE; MOLECULES
AB Covalent conjugation of poly(ethylene glycol) or "PEGylation" has proven an effective strategy to improve pharmaceutical protein efficacy by hindering recognition by proteases, inhibitors, and antibodies and by retarding renal clearance. Because it determines the strength and range of intermolecular steric forces and the hydrodynamic properties of the conjugates, the configuration of protein-conjugated PEG chains is the key factor determining how PEGylation alters protein in vivo circulation time. Mono-PEGylated proteins are typically described as having a protective PEG shroud wrapped around the protein, but recent dynamic light scattering studies suggested that conjugates adopt a dumbbell configuration, with a relatively unperturbed PEG random coil adjacent to the globular protein. We used small-angle neutron scattering (SANS) to distinguish between the dumbbell model and the shroud model for chicken-egg lysozyme and human growth hormone covalently conjugated to a single 20 kDa PEG chain. The SANS contrast variation technique was used to isolate the PEG portion of the conjugate. Scattering intensity profiles were well described by the dumbbell model and inconsistent with the shroud model.
C1 [Pai, Sheetal S.; Przybycien, Todd M.; Tilton, Robert D.] Carnegie Mellon Univ, Ctr Complex Fluids Engn, Dept Chem Engn, Pittsburgh, PA 15213 USA.
[Przybycien, Todd M.; Tilton, Robert D.] Carnegie Mellon Univ, Dept Biomed Engn, Pittsburgh, PA 15213 USA.
[Hammouda, Boualem] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Hong, Kunlun] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Hong, Kunlun] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Pozzo, Danilo C.] Univ Washington, Dept Chem Engn, Seattle, WA 98195 USA.
RP Przybycien, TM (reprint author), Carnegie Mellon Univ, Ctr Complex Fluids Engn, Dept Chem Engn, Pittsburgh, PA 15213 USA.
EM todd@andrew.cmu.edu; tilton@andrew.cmu.edu
RI Tilton, Robert/A-8267-2009; Hong, Kunlun/E-9787-2015;
OI Hong, Kunlun/0000-0002-2852-5111; Tilton, Robert/0000-0002-6535-9415
FU National Science Foundation (NSF) [CBET 0755284, DMR-0454672,
DMR-0520547]; Oak Ridge National Laboratory (ORNL) by the Office of
Basic Energy Sciences, U.S. Department of Energy [CNMS2009-212];
Scientific User Facilities Division, Office of Basic Energy Sciences,
U.S. Department of Energy
FX The identification of commercial products does not imply endorsement by
the National Institute of Standards and Technology nor does it imply
that these are the best for the purpose. This material is based on work
supported by the National Science Foundation under Grant CBET 0755284
and utilized facilities supported in part by the National Science
Foundation under Agreement No. DMR-0454672. We thank Dr. Reddy's
Laboratories, LLC, and Genentech, Inc., for their generous donation of
mPEG-propionaldehyde and HGH, respectively. A portion of this research
was conducted at the Center for Nanophase Materials Sciences (CNMS),
which is sponsored at Oak Ridge National Laboratory (ORNL) by the Office
of Basic Energy Sciences, U.S. Department of Energy, through the CNMS
user program (user proposal number: CNMS2009-212). A portion of this
research at ORNL's High Flux Isotope Reactor was sponsored by the
Scientific User Facilities Division, Office of Basic Energy Sciences,
U.S. Department of Energy. This work benefited from DANSE software
developed under NSF award DMR-0520547.
NR 34
TC 39
Z9 39
U1 7
U2 42
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1043-1802
J9 BIOCONJUGATE CHEM
JI Bioconjugate Chem.
PD NOV
PY 2011
VL 22
IS 11
BP 2317
EP 2323
DI 10.1021/bc2003583
PG 7
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Chemistry, Multidisciplinary; Chemistry, Organic
SC Biochemistry & Molecular Biology; Chemistry
GA 847VY
UT WOS:000297001800014
PM 21950579
ER
PT J
AU Ebadian, M
Sowlati, T
Sokhansanj, S
Stumborg, M
Townley-Smith, L
AF Ebadian, Mahmood
Sowlati, Taraneh
Sokhansanj, Shahab
Stumborg, Mark
Townley-Smith, Lawrence
TI A new simulation model for multi-agricultural biomass logistics system
in bioenergy production
SO BIOSYSTEMS ENGINEERING
LA English
DT Article
ID FUEL DELIVERY-SYSTEMS; OPTIMIZATION MODEL; SUPPLY ANALYSIS; STRAW;
CHAIN; COSTS; IBSAL; SHAM; L.
AB This paper presents the development of a new logistics model and its application to supply a mixture of agricultural feedstocks to a proposed cellulosic ethanol plant. The new model, IBSAL-MC (Integrated Biomass Supply Analysis &Logistics- Multi Crop), is developed based on the framework of IBSAL. IBSAL-MC is a hybrid push-pull logistics model which pushes the field operations to harvest and collect as much biomass as possible within the harvest season while pulling downstream operations to meet the daily demand of the ethanol plant. The proposed ethanol plant would be located near Prince Albert, Saskatchewan, Canada. Despite the abundance of wheat straw in the region (more than five times the annual demand), the daily demand of the ethanol plant would be fully met for only 104 days. In terms of the total annual demand, only 92% of it would be met. The logistics cost varies between $62.06 and $63.46t(-1) with 90% confidence level. The capacity of the required on-farm storage and at-plant storage are estimated at 400 t and 3500 t of biomass, respectively. Several managerial insights were also given to improve the biomass logistics system in terms of demand fulfilment, logistics costs and resource utilisation. (C) 2011 IAgrE. Published by Elsevier Ltd. All rights reserved.
C1 [Ebadian, Mahmood; Sowlati, Taraneh] Univ British Columbia, Dept Wood Sci, Vancouver, BC V6T 1Z4, Canada.
[Sokhansanj, Shahab] Univ British Columbia, Dept Chem & Biol Engn, Vancouver, BC V6T 1Z3, Canada.
[Sokhansanj, Shahab] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Stumborg, Mark] Agr & Agri Food Canada, Semiarid Prairie Agr Res Ctr, Swift Current, SK S9H 3X2, Canada.
[Townley-Smith, Lawrence] Agr & Agri Food Canada, Agr Environm Serv, Regina, SK S4P 4L2, Canada.
RP Sowlati, T (reprint author), Univ British Columbia, Dept Wood Sci, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada.
EM taraneh.sowlati@ubc.ca
FU Agriculture and Agri-Food Canada; Agricultural Biorefinery Innovation
Network (ABIN); Natural Sciences and Engineering Research Council of
Canada; FPInnovations; Office of Biomass Program of the U.S., Department
of Energy; Oak Ridge National Laboratory, Oak Ridge, TN
FX The following organisations have provided support and funding for this
project: Agriculture and Agri-Food Canada in support of the BIMAT-IBSAL
Integration, Agricultural Biorefinery Innovation Network (ABIN), Natural
Sciences and Engineering Research Council of Canada, FPInnovations, the
Office of Biomass Program of the U.S., Department of Energy and Oak
Ridge National Laboratory, Oak Ridge, TN. We acknowledge the assistance
of Ms. Rounce of the AAFC for providing crop data.
NR 36
TC 19
Z9 20
U1 7
U2 40
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1537-5110
J9 BIOSYST ENG
JI Biosyst. Eng.
PD NOV
PY 2011
VL 110
IS 3
BP 280
EP 290
DI 10.1016/j.biosystemseng.2011.08.008
PG 11
WC Agricultural Engineering; Agriculture, Multidisciplinary
SC Agriculture
GA 843PU
UT WOS:000296685300006
ER
PT J
AU Zhang, YHP
AF Zhang, Y. -H. Percival
TI Substrate channeling and enzyme complexes for biotechnological
applications
SO BIOTECHNOLOGY ADVANCES
LA English
DT Review
DE Cell-free synthetic pathway biotransformation; Coimmobilization; Enzyme
complex; Metabolic engineering; Metabolite channeling; Multi-enzyme one
pot; Substrate channeling; Synthetic biology
ID CLOSTRIDIUM-ACETOBUTYLICUM ATCC-824; BIFUNCTIONAL THYMIDYLATE SYNTHASE;
MICROBIAL CELLULOSE UTILIZATION; ESCHERICHIA-COLI;
DIHYDROFOLATE-REDUCTASE; LACTATE-DEHYDROGENASE; MULTIENZYME COMPLEX;
TRYPTOPHAN SYNTHASE; HYDROGEN-PRODUCTION; IN-VITRO
AB Substrate channeling is a process of transferring the product of one enzyme to an adjacent cascade enzyme or cell without complete mixing with the bulk phase. Such phenomena can occur in vivo, in vitro, or ex vivo. Enzyme-enzyme or enzyme-cell complexes may be static or transient. In addition to enhanced reaction rates through substrate channeling in complexes, numerous potential benefits of such complexes are protection of unstable substrates, circumvention of unfavorable equilibrium and kinetics imposed, forestallment of substrate competition among different pathways, regulation of metabolic fluxes, mitigation of toxic metabolite inhibition, and so on. Here we review numerous examples of natural and synthetic complexes featuring substrate channeling. Constructing synthetic in vivo, in vitro or ex vivo complexes for substrate channeling would have great biotechnological potentials in metabolic engineering, multi-enzyme-mediated biocatalysis, and cell-free synthetic pathway biotransformation (SyPaB). (C) 2011 Elsevier Inc. All rights reserved.
C1 [Zhang, Y. -H. Percival] Virginia Tech, Dept Biol Syst Engn, Blacksburg, VA 24061 USA.
[Zhang, Y. -H. Percival] Virginia Tech, Inst Crit Technol & Appl Sci, Blacksburg, VA 24061 USA.
[Zhang, Y. -H. Percival] DOE Bioenergy Sci Ctr, Oak Ridge, TN 37831 USA.
[Zhang, Y. -H. Percival] Gate Fuels Inc, Blacksburg, VA 24060 USA.
RP Zhang, YHP (reprint author), Virginia Tech, Dept Biol Syst Engn, 210-A Seitz Hall, Blacksburg, VA 24061 USA.
EM ypzhang@vt.edu
FU Air Force Office of Scientific Research YIA and MURI; DOE Bioenergy
Science Center (BESC); USDA Biodesign and Bioprocessing Center; China
National Special Fund for Key Laboratories [2060204]
FX This work was supported by the Air Force Office of Scientific Research
YIA and MURI, DOE Bioenergy Science Center (BESC), USDA Biodesign and
Bioprocessing Center, and China National Special Fund for Key
Laboratories (No. 2060204).
NR 163
TC 97
Z9 100
U1 6
U2 104
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0734-9750
EI 1873-1899
J9 BIOTECHNOL ADV
JI Biotechnol. Adv.
PD NOV-DEC
PY 2011
VL 29
IS 6
BP 715
EP 725
DI 10.1016/j.biotechadv.2011.05.020
PG 11
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA 845KP
UT WOS:000296821900015
PM 21672618
ER
PT J
AU Turteltaub, KW
Davis, MA
Burns-Naas, LA
Lawton, MP
Clark, AM
Reynolds, JA
AF Turteltaub, Kenneth W.
Davis, Myrtle A.
Burns-Naas, Leigh Ann
Lawton, Michael P.
Clark, Adam M.
Reynolds, Jack A.
TI Identification and Elucidation of the Biology of Adverse Events: The
Challenges of Safety Assessment and Translational Medicine
SO CLINICAL CANCER RESEARCH
LA English
DT Article
ID INDUCED VASCULAR INJURY; SYSTEMS BIOLOGY; CARDIOTOXICITY; INHIBITOR;
BIOMARKERS
AB There has been an explosion of technology-enabled scientific insight into the basic biology of the causes of adverse events. This has been driven, in part, by the development of the various "omics" tools (e. g., genomics, proteomics, and metabolomics) and associated bioinformatics platforms. Meanwhile, for decades, changes in preclinical testing protocols and guidelines have been limited. Preclinical safety testing currently relies heavily on the use of outdated animal models. Application of systems biology methods to evaluation of toxicities in oncology treatments can accelerate the introduction of safe, effective drugs. Systems biology adds insights regarding the causes and mechanisms of adverse effects, provides important and actionable information to help understand the risks and benefits to humans, focuses testing on methods that add value to the safety testing process, and leads to modifications of chemical entities to reduce liabilities during development. Leveraging emerging technologies, such as genomics and proteomics, may make preclinical safety testing more efficient and accurate and lead to better safety decisions. The development of a U. S. Food and Drug Administration guidance document on the use of systems biology in clinical testing would greatly benefit the development of drugs for oncology by communicating the potential application of specific methodologies, providing a framework for qualification and application of systems biology outcomes, and providing insight into the challenges and limitations of systems biology in the regulatory decision-making process. Clin Cancer Res; 17(21); 6641-5. (C)2011 AACR.
C1 [Turteltaub, Kenneth W.] Battelle Mem Inst, Livermore, CA 94550 USA.
[Turteltaub, Kenneth W.] Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Ctr Accelerator, Livermore, CA 94550 USA.
[Burns-Naas, Leigh Ann; Lawton, Michael P.] Pfizer Inc, Drug Safety Res & Dev, San Diego, CA USA.
[Davis, Myrtle A.] NCI, Pharmacol Branch, Bethesda, MD 20892 USA.
[Clark, Adam M.] FasterCures, Sci & Fed Affairs, Washington, DC USA.
[Reynolds, Jack A.] AnaBios Corp, San Diego, CA USA.
RP Turteltaub, KW (reprint author), Battelle Mem Inst, 7000 East Ave,L-452, Livermore, CA 94550 USA.
EM turteltaub2@llnl.gov
NR 27
TC 10
Z9 10
U1 0
U2 6
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 1078-0432
J9 CLIN CANCER RES
JI Clin. Cancer Res.
PD NOV 1
PY 2011
VL 17
IS 21
BP 6641
EP 6645
DI 10.1158/1078-0432.CCR-11-1106
PG 5
WC Oncology
SC Oncology
GA 842TS
UT WOS:000296624000007
PM 22046025
ER
PT J
AU Szybist, JP
Youngquist, AD
Barone, TL
Storey, JM
Moore, WR
Foster, M
Confer, K
AF Szybist, James P.
Youngquist, Adam D.
Barone, Teresa L.
Storey, John M.
Moore, Wayne R.
Foster, Matthew
Confer, Keith
TI Ethanol Blends and Engine Operating Strategy Effects on Light-Duty
Spark-Ignition Engine Particle Emissions
SO ENERGY & FUELS
LA English
DT Article
AB Spark-ignition (SI) engines with direct-injection (DI) fueling can improve fuel economy and vehicle power beyond that of port fuel injection (PFI). Despite this distinct advantage, DI fueling often increases particle number emissions, such that SI exhaust may be subject to future particle emissions regulations. In this study, ethanol blends and engine operating strategy are evaluated for their effectiveness in reducing particle emissions in DI engines. The investigated fuels include a baseline emissions certification gasoline, a blend of 20 vol % ethanol with gasoline (E20), and a blend of 85 vol % ethanol with gasoline (E85). The operating strategies investigated reflect the versatility of emerging cam-based variable valve actuation technology capable of unthrottled operation with either early or late intake valve closing (EIVC or LIVC). Particle emissions are characterized in this study by the particle number size distribution as measured with a scanning mobility particle sizer (SMPS) and by the filter smoke number (FSN). Particle emissions for PFI fueling are very low and comparable for all fuels and breathing conditions. When DI fueling is used for gasoline and E20, the particle number emissions are increased by 1-2 orders of magnitude compared to PFI fueling, depending upon the fuel injection timing. In contrast, when DI fueling is used with E85, the particle number emissions remain low and comparable to PFI fueling. Thus, by using E85, the efficiency and power advantages of DI fueling can be gained without generating the increase in particle emissions observed with gasoline and E20.
C1 [Szybist, James P.; Youngquist, Adam D.; Barone, Teresa L.; Storey, John M.] Oak Ridge Natl Lab, Fuels Engines & Emiss Res Ctr, Knoxville, TN 37932 USA.
[Moore, Wayne R.; Foster, Matthew; Confer, Keith] Delphi Automot Syst, Adv Powertrain, Auburn Hills, MI 48326 USA.
RP Szybist, JP (reprint author), Oak Ridge Natl Lab, Fuels Engines & Emiss Res Ctr, NTRC Bldg,2360 Cherahala Blvd, Knoxville, TN 37932 USA.
EM szybistjp@ornl.gov
FU Office of Energy Efficiency and Renewable Energy, U.S. Department of
Energy [DE-AC05-00OR22725]; UT-Battelle, LLC
FX The research is sponsored by the Vehicle Technologies Program, Office of
Energy Efficiency and Renewable Energy, U.S. Department of Energy, under
contract DE-AC05-00OR22725, with UT-Battelle, LLC. It is also performed
under Cooperative Research and Development Agreement (CRADA)
NFE-07-00722 between UT-Battelle, LLC and Delphi Automotive Systems,
LLC.
NR 34
TC 18
Z9 18
U1 1
U2 25
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 NOV
PY 2011
VL 25
IS 11
BP 4977
EP 4985
DI 10.1021/ef201127y
PG 9
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 847VU
UT WOS:000297001400012
ER
PT J
AU Mehl, M
Chen, JY
Pitz, WJ
Sarathy, SM
Westbrook, CK
AF Mehl, M.
Chen, J. Y.
Pitz, W. J.
Sarathy, S. M.
Westbrook, C. K.
TI An Approach for Formulating Surrogates for Gasoline with Application
toward a Reduced Surrogate Mechanism for CFD Engine Modeling
SO ENERGY & FUELS
LA English
DT Article
ID DIRECTED RELATION GRAPH; SOOTING TENDENCY; SHOCK-TUBE; REDUCTION;
MIXTURES; FUELS; ISOOCTANE; OXIDATION; KINETICS
AB The numerical study of engine combustion requires the coupling of advanced computational fluid dynamics and accurate chemical kinetic models. This task becomes extremely challenging for real fuels. Gasoline is a mixture of hundreds of different hydrocarbons. Detailed modeling of its chemistry requires huge numbers of species and reactions and exceeds present numerical capabilities. Consequently, simpler surrogate mixtures are adopted to approximate the behavior of the real fuels. Large kinetic models for surrogates are developed to characterize their chemistry, but these models still contain thousands of species and reactions and can usually only be used for simulating simple homogeneous systems. For multidimensional engine applications, they must be reduced. In this work, we propose a methodology for the formulation of a gasoline surrogates based on the intrinsic qualities of the fuel chemical behavior. Using the proposed procedure, a candidate surrogate containing four components has been identified to match a real nonoxygenated gasoline. Starting from this formulation, the LLNL (Lawrence Livermore National Laboratory) detailed kinetic mechanism has been reduced while maintaining its ability to reproduce targets of ignition delay times and flame speeds over a wide range of operating conditions. The reduction was carried by the construction of a preliminary version of a skeletal mechanism using the Computer Assisted Reduction Mechanism (CARM) code under a set of targeted conditions. Further reduction is made with a search algorithm that sequentially tests the importance of each species, leading to a much smaller mechanism. Finally, the resulting reduced mechanism has been validated against the detailed mechanism and available experimental data.
C1 [Mehl, M.; Pitz, W. J.; Sarathy, S. M.; Westbrook, C. K.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Chen, J. Y.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
RP Mehl, M (reprint author), Lawrence Livermore Natl Lab, Livermore, CA USA.
EM mehl6@llnl.gov
RI Sarathy, S. Mani/M-5639-2015; Mehl, Marco/A-8506-2009
OI Sarathy, S. Mani/0000-0002-3975-6206; Mehl, Marco/0000-0002-2227-5035
FU U.S. Department of Energy, Office of Vehicle Technologies; U.S.
Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was supported by U.S. Department of Energy, Office of Vehicle
Technologies, and performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344. The authors thank program managers Kevin Stork and
Gurpreet Singh for their support. The authors also would like to thank
Dr. John Dec for sharing the HCCI engine data.
NR 39
TC 69
Z9 71
U1 9
U2 51
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 NOV
PY 2011
VL 25
IS 11
BP 5215
EP 5223
DI 10.1021/ef201099y
PG 9
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 847VU
UT WOS:000297001400037
ER
PT J
AU McAlpin, CR
Voorhees, KJ
Alleman, TL
McCormick, RL
AF McAlpin, Casey R.
Voorhees, Kent J.
Alleman, Teresa L.
McCormick, Robert L.
TI Ternary Matrix for the Matrix-Assisted Laser Desorption Ionization
Time-of-Flight Mass Spectrometry (MALDI-TOF MS) Analysis of Non-fuel
Lipid Components in Biodiesel
SO ENERGY & FUELS
LA English
DT Article
ID STERYL GLUCOSIDES; QUANTIFICATION; IDENTIFICATION
AB Trace components present in biodiesel have been shown to contribute to the precipitation of solids at temperatures above the cloud point. These precipitates represent an operability problem for use of biodiesel in cold climates. Separation methods for analysis of trace lipid impurities, such as gas and liquid chromatography, have been problematic, and chromatographic signals for these compounds are often eclipsed by the signals for the fatty acid methyl esters (FAMEs), the major components of biodiesel. The method described herein has been developed as a rapid procedure for analyzing non-FAME lipid biodiesel components, which have been postulated to contribute to cold-weather operability problems. Representative standards of the non-FAME lipids present in biodiesel were analyzed with matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) using pure and mixed matrix systems. An optimized ternary matrix system consisting of dithranol, 2,5-dihydroxybenzoic acid, and alpha-cyano-4-hydroxycinnamic acid doped with sodium iodide was developed for analysis of the widest range of trace components possible by capitalizing on the positives of each matrix in ionizing compounds with differing functional groups. Mixtures of matrix compounds produced smaller, more homogeneous crystals, which resulted in increased reproducibility and sensitivity. This increase in reproducibility allowed quantitative relationships to be established with standards and between fuel samples. Spectral peak identification was based on molecular weight and tandem mass spectrometry collision-induced dissociation. Two palm oil-derived biodiesels, one of which was distilled, were analyzed to determine their non-FAME components and to quantitatively compare the number and relative concentration of trace species detected. Trace lipid species in precipitates from canola-oil-derived biodiesel were also isolated via refrigerated centrifugation, followed by analysis with the ternary matrix.
C1 [McAlpin, Casey R.; Voorhees, Kent J.] Colorado Sch Mines, Dept Chem, Golden, CO 80401 USA.
[Alleman, Teresa L.; McCormick, Robert L.] Natl Renewable Energy Lab, Ctr Transportat Technol & Syst, Golden, CO 80401 USA.
RP Voorhees, KJ (reprint author), Colorado Sch Mines, Dept Chem, Golden, CO 80401 USA.
EM kvoorhee@mines.edu
RI McCormick, Robert/B-7928-2011
FU National Renewable Energy Laboratory (NREL) [KXEA-3-33607-40]; United
States Department of Energy, Office of Energy Efficiency and Renewable
Energy, Vehicle Technologies Program, Fuel Technologies
FX Work at the Colorado School of Mines was sponsored by the National
Renewable Energy Laboratory (NREL) under subcontract KXEA-3-33607-40.
Researchers at NREL thank the United States Department of Energy, Office
of Energy Efficiency and Renewable Energy, Vehicle Technologies Program,
Fuel Technologies, for their financial support.
NR 25
TC 3
Z9 3
U1 0
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 NOV
PY 2011
VL 25
IS 11
BP 5407
EP 5415
DI 10.1021/ef201257g
PG 9
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 847VU
UT WOS:000297001400053
ER
PT J
AU Christensen, E
Williams, A
Paul, S
Burton, S
McCormick, RL
AF Christensen, Earl
Williams, Aaron
Paul, Stephen
Burton, Steve
McCormick, Robert L.
TI Properties and Performance of Levulinate Esters as Diesel Blend
Components
SO ENERGY & FUELS
LA English
DT Article
ID BIODIESEL BLENDS; EMISSIONS; ENGINE; ACID
AB The properties of ethyl (EL) and n-butyl levulinate (BL), two potential cellulose-derived diesel blend components, were assessed as both neat oxygenates and blends with diesel fuel. The samples tested were produced commercially from cellulose and alcohols but were not reagent-grade samples. They were relatively free of impurities, although EL contained some acidic compounds and both contained parts-per-million levels of calcium. Both esters exhibited a very low cetane number. The melting points of both esters were less than -60 degrees C. The water solubility of EL was 15.2 wt %, while that of BL was only 1.3 wt %. Blends of diesel fuel with EL were found to have an elevated cloud point, despite the extremely low melting point of this compound, because EL separates from diesel fuel as a separate liquid phase at low temperatures. This can be mitigated to some extent by including biodiesel in the blend. BL remained in solution and raised the diesel cloud point only when blended into -45 degrees C cloud point/15% aromatic no. 1 diesel fuel. Both esters were found to significantly increase diesel lubricity and conductivity. The esters were treated with the cetane-enhancing compound 2-ethyl hexyl nitrate and were tested as blends with diesel fuel in a 2008 model year Cummins ISB engine with the measurement of regulated pollutant emissions over the federal heavy duty diesel transient cycle. Fuel chemistry had no effect on tailpipe total hydrocarbons, carbon monoxide, or particulate matter for this diesel oxidation catalyst and particle filter equipped engine. The engine-out smoke number was reduced by 41.3% with a 10% blend of EL (EL10) and reduced by 55% with a blend of 20% BL (BL20). EL10 had no effect on emissions of nitrogen oxides (NOx), while BL20 increased NOx by 4.6%. Because of the poor solubility of EL in diesel fuel at low temperatures, its use as a diesel blend component will be technically challenging. The low cetane number of both esters can be addressed with cetane improver additives.
C1 [Christensen, Earl; Williams, Aaron; McCormick, Robert L.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Paul, Stephen] Trenton Fuel Works LLC, Princeton, NJ 08543 USA.
[Burton, Steve] MeadWestvaco Corp, Raleigh, NC 27606 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 Office of Vehicle Technologies, U.S. Department of Energy
[DEAC36-99GO10337]; National Renewable Energy Laboratory
FX This work was supported by the Fuels and Lubricants Technologies
Program, Office of Vehicle Technologies, U.S. Department of Energy,
under Contract DEAC36-99GO10337 with the National Renewable Energy
Laboratory.
NR 28
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U2 33
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 NOV
PY 2011
VL 25
IS 11
BP 5422
EP 5428
DI 10.1021/ef201229j
PG 7
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 847VU
UT WOS:000297001400055
ER
PT J
AU Christensen, ED
Chupka, GM
Luecke, J
Smurthwaite, T
Alleman, TL
Iisa, K
Franz, JA
Elliott, DC
McCormick, RL
AF Christensen, Earl D.
Chupka, Gina M.
Luecke, Jon
Smurthwaite, Tricia
Alleman, Teresa L.
Iisa, Kristiina
Franz, James A.
Elliott, Douglas C.
McCormick, Robert L.
TI Analysis of Oxygenated Compounds in Hydrotreated Biomass Fast Pyrolysis
Oil Distillate Fractions
SO ENERGY & FUELS
LA English
DT Article
ID BIO-OILS; PART 1; STABILITY; CORROSION; STABILIZATION; MECHANISMS;
PHENOLS; PRODUCE; FUEL
AB Three hydrotreated bio-oils with different oxygen contents (8.2, 4.9, and 0.4 w/w) were distilled to produce light, naphtha, jet, diesel, and gas oil boiling range fractions that were characterized for oxygen-containing species by a variety of analytical methods. The bio-oils were originally generated from lignocellulosic biomass in an entrained-flow fast pyrolysis reactor. Analyses included elemental composition, carbon type distribution by (13)C nuclear magnetic resonance, acid number, gas chromatography/mass spectroscopy, volatile organic acids by liquid chromatography, and carbonyl compounds by 2,4-dinitrophenylhydrazine derivatization and liquid chromatography. Acid number titrations employed an improved titrant electrode combination with faster response that allowed the detection of multiple end points in many samples and allowed for acid values attributable to carboxylic acids and to phenols to be distinguished. The results of these analyses showed that the highest oxygen content bio-oil fractions contained oxygen as carboxylic acids, carbonyls, aryl ethers, phenols, and alcohols. Carboxylic acids and carbonyl compounds detected in this sample were concentrated in the light, naphtha, and jet fractions (<260 degrees C boiling point). The carboxylic acid content of all of the high oxygen content fractions was likely too high for these materials to be considered as fuel blendstocks, although the potential for blending with crude oil or refinery intermediate streams may exist for the diesel and gas oil fractions. The 4.9% oxygen sample contained, almost exclusively, phenolic compounds found to be present throughout the boiling range fractions, which imparted measurable acidity primarily in the light, naphtha, and jet fractions. Additional study is required to understand what levels of the weakly acidic phenols could be tolerated in a refinery feedstock. The diesel and gas oil fractions from this upgraded oil had low acidity but still contained 3-4 wt % oxygen present as phenols that could not be specifically identified. These materials appear to have excellent potential as refinery feedstocks and some potential for blending into finished fuels. Fractions from the lowest oxygen-content oil exhibited some phenolic acidity but generally contained very low levels of oxygen functional groups. These materials would likely be suitable as refinery feedstocks and potentially as fuel blend components. Paraffins, isoparaffins, olefins, naphthenes, and aromatics (PIONA) analysis of the light and naphtha fractions showed benzene contents of 0.5 and 0.4 vol % and predicted (research octane number (RON) + motor octane number (MON))/2 of 63 and 70, respectively.
C1 [Christensen, Earl D.; Chupka, Gina M.; Luecke, Jon; Alleman, Teresa L.; Iisa, Kristiina; McCormick, Robert L.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Smurthwaite, Tricia; Franz, James A.; Elliott, Douglas C.] Pacific NW Natl Lab, Richland, WA 99352 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 U.S. Department of Energy, Office of the Biomass Program with National
Renewable Energy Laboratory [DEAC36-99GO10337]; U.S. Department of
Energy, Office of the Biomass Program with Pacific Northwest National
Laboratory [DE-C05-76RL01830]
FX This work was performed with funding from the Thermochemical Conversion
platform managed by Paul Grabowski within the U.S. Department of Energy,
Office of the Biomass Program under Contract No. DEAC36-99GO10337 with
the National Renewable Energy Laboratory and Contract No.
DE-C05-76RL01830 with Pacific Northwest National Laboratory. The authors
thank Valero Energy Corporation for providing the distilled fractions,
the simulated distillation results, and the PIONA analysis of the
upgraded bio-oils.
NR 30
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U1 4
U2 76
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 NOV
PY 2011
VL 25
IS 11
BP 5462
EP 5471
DI 10.1021/ef201357h
PG 10
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 847VU
UT WOS:000297001400060
ER
PT J
AU Bandi, MM
Tallinen, T
Mahadevan, L
AF Bandi, M. M.
Tallinen, T.
Mahadevan, L.
TI Shock-driven jamming and periodic fracture of particulate rafts
SO EPL
LA English
DT Article
ID DEEP FLUID LAYER; PARTICLES; DYNAMICS; SURFACE; WATER; OIL
AB A tenuous monolayer of hydrophobic particles at the air-water interface often forms a scum or raft. When such a monolayer is disturbed by the localized introduction of a surfactant droplet, a radially divergent surfactant shock front emanates from the surfactant origin and packs the particles into a jammed, compact, annular band with a packing fraction that saturates at a peak packing fraction phi*. As the resulting two-dimensional, disordered elastic band grows with time and is driven radially outwards by the surfactant, it fractures to form periodic triangular cracks with robust geometrical features. We find that the number of cracks N and the compaction band radius R* at fracture onset vary monotonically with the initial packing fraction (phi(init)). However, the compaction band's width W* is constant for all phi(init). A simple geometric theory that treats the compaction band as an elastic annulus, and accounts for mass conservation allows us to deduce that N similar or equal to 2 pi R*/W* similar or equal to 4 pi phi(RCP)/phi(init), a result we verify both experimentally and numerically. We show that the essential ingredients for this phenomenon are an initially low enough particulate packing fraction that allows surfactant-driven advection to cause passive jamming and eventual fracture of the hydrophobic particulate interface. Copyright (C) EPLA, 2011
C1 [Bandi, M. M.] Los Alamos Natl Lab, CNLS, Los Alamos, NM 87545 USA.
[Bandi, M. M.] Los Alamos Natl Lab, MPA 10, Los Alamos, NM 87545 USA.
[Bandi, M. M.; Tallinen, T.; Mahadevan, L.] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02135 USA.
[Mahadevan, L.] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA.
RP Bandi, MM (reprint author), Los Alamos Natl Lab, CNLS, POB 1663, Los Alamos, NM 87545 USA.
EM lm@seas.harvard.edu
RI Tallinen, Tuomas/J-7065-2013
FU U. S. Department of Energy at Los Alamos National Laboratory
[DE-AC52-06NA25396]; Harvard NSF-MRSEC; MacArthur Foundation
FX This work was supported by the U. S. Department of Energy at Los Alamos
National Laboratory under Contract No. DE-AC52-06NA25396 (MMB), the
Harvard NSF-MRSEC and the MacArthur Foundation (LM). The authors
acknowledge W. I. GOLDBURG, M. K. RIVERA, and R. E. ECKE for equipment
support during preliminary investigations, and D. VELLA and A. SHREVE
for discussions.
NR 25
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U1 1
U2 13
PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
PI MULHOUSE
PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
SN 0295-5075
EI 1286-4854
J9 EPL-EUROPHYS LETT
JI EPL
PD NOV
PY 2011
VL 96
IS 3
AR 36008
DI 10.1209/0295-5075/96/36008
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 841UB
UT WOS:000296538200023
ER
PT J
AU Hiraoka, N
Suzuki, M
Tsuei, KD
Ishii, H
Cai, YQ
Haverkort, MW
Lee, CC
Ku, W
AF Hiraoka, N.
Suzuki, M.
Tsuei, K. D.
Ishii, H.
Cai, Y. Q.
Haverkort, M. W.
Lee, C. C.
Ku, W.
TI dd excitations in three-dimensional q-space: A nonresonant inelastic
X-ray scattering study on NiO
SO EPL
LA English
DT Article
ID NIO(100)
AB We have studied the dd excitations in NiO over three-dimensional momentum (q) space using nonresonant inelastic X-ray scattering. In addition to the previously reported peaks at 1.7 and 3.0 eV, another peak is found at 1.0 eV, with a dramatically different intensity distribution in momentum space. Contrary to the other two peaks that form oval structures maximizing at [111] directions, the 1.0 eV peak displays appreciable intensity along low-symmetry axes near [311] and [210], but vanishes in the three principal axes [100], [110], and [111], indicating a significant difference in the exciton wave function. We find good agreement between the experimental data and two state-of-the-art theories, advocating investigating other strongly correlated materials with similar experimental/theoretical approaches. Copyright (C) EPLA, 2011
C1 [Hiraoka, N.; Tsuei, K. D.; Ishii, H.] NSRRC, Hsinchu 30076, Taiwan.
[Suzuki, M.] Japan Synchrotron Radiat Res Inst JASRI, Sayo, Hyogo 6795198, Japan.
[Cai, Y. Q.] Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA.
Max Planck Inst Stuttgart, D-70569 Stuttgart, Germany.
[Lee, C. C.] Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
[Ku, W.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
RP Hiraoka, N (reprint author), NSRRC, Hsinchu 30076, Taiwan.
EM hiraoka@spring8.or.jp
RI Haverkort, Maurits W./D-2319-2009; Cai, Yong/C-5036-2008
OI Haverkort, Maurits W./0000-0002-7216-3146; Cai, Yong/0000-0002-9957-6426
FU U.S. Department of Energy, Office of Basic Energy Science
[DE-AC02-98CH10886]
FX The experiments were carried out in beamtimes approved by JASRI/SPring-8
(2009B4260) and NSRRC, Taiwan (2008-3-029-5). We thank S. GOTO
(JASRI/SPring-8), M. TAKATA, and T. ISHIKAWA (RIKEN, JASRI/SPring-8) for
their input regarding the diamond phase retarder. WK, CCL, and YQC
acknowledge support from the U.S. Department of Energy, Office of Basic
Energy Science, under Contract No. DE-AC02-98CH10886.
NR 28
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U1 2
U2 6
PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
PI MULHOUSE
PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
SN 0295-5075
EI 1286-4854
J9 EPL-EUROPHYS LETT
JI EPL
PD NOV
PY 2011
VL 96
IS 3
AR 37007
DI 10.1209/0295-5075/96/37007
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 841UB
UT WOS:000296538200032
ER
PT J
AU Ramos, AY
Souza-Neto, NM
Tolentino, HCN
Bunau, O
Joly, Y
Grenier, S
Itie, JP
Flank, AM
Lagarde, P
Caneiro, A
AF Ramos, A. Y.
Souza-Neto, N. M.
Tolentino, H. C. N.
Bunau, O.
Joly, Y.
Grenier, S.
Itie, J. -P.
Flank, A. -M.
Lagarde, P.
Caneiro, A.
TI Bandwidth-driven nature of the pressure-induced metal state of LaMnO3
SO EPL
LA English
DT Article
ID JAHN-TELLER TRANSITION; LA1-XCAXMNO3; TEMPERATURE; DISTORTIONS; CHARGE
AB Using X-ray absorption spectroscopy (XAS), we studied the local structure in LaMnO3 under applied pressure across and well above the insulator-to-metal (IM) transition. A hysteretic behavior points to the coexistence of two phases within a large pressure range (7 to 25 GPa). The ambient phase with highly Jahn-Teller (JT) distorted MnO6 octahedra is progressively substituted by a new phase with less-distorted JT MnO6 units. The electronic delocalization leading to the IM transition is finger-printed from the pre-edge XAS structure around 30 GPa. We observed that the phase transition takes place without any significant reduction of the JT distortion. This entails band overlap as the driving mechanism of the IM transition. Copyright (C) EPLA, 2011
C1 [Ramos, A. Y.; Tolentino, H. C. N.; Bunau, O.; Joly, Y.; Grenier, S.] CNRS, Inst Neel, F-38042 Grenoble 9, France.
[Ramos, A. Y.; Tolentino, H. C. N.; Bunau, O.; Joly, Y.; Grenier, S.] Univ Grenoble 1, F-38042 Grenoble 9, France.
[Souza-Neto, N. M.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Souza-Neto, N. M.] Lab Nacl Luz Sincrotron, BR-13084971 Campinas, SP, Brazil.
[Itie, J. -P.; Flank, A. -M.; Lagarde, P.] Synchrotron SOLEIL, F-91192 Gif Sur Yvette, France.
[Caneiro, A.] CNEA, Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Argentina.
[Caneiro, A.] Univ Nacl Cuyo, RA-8400 San Carlos De Bariloche, Argentina.
RP Ramos, AY (reprint author), CNRS, Inst Neel, BP 166, F-38042 Grenoble 9, France.
EM aline.ramos@grenoble.cnrs.fr
RI Ramos, Aline /H-6132-2011; Souza-Neto, Narcizo/G-1303-2010; TOLENTINO,
HELIO/J-1894-2014; Grenier, Stephane/N-1986-2014
OI Souza-Neto, Narcizo/0000-0002-7474-8017; TOLENTINO,
HELIO/0000-0003-4032-5988; Grenier, Stephane/0000-0001-8370-7375
FU European Community
FX We acknowledge financial support by the European Community for the
experiments at SLS (Swiss Ligth Source).
NR 41
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U1 0
U2 13
PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
PI MULHOUSE
PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
SN 0295-5075
EI 1286-4854
J9 EPL-EUROPHYS LETT
JI EPL
PD NOV
PY 2011
VL 96
IS 3
AR 36002
DI 10.1209/0295-5075/96/36002
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 841UB
UT WOS:000296538200017
ER
PT J
AU Schmiedeberg, M
Haxton, TK
Nagel, SR
Liu, AJ
AF Schmiedeberg, M.
Haxton, T. K.
Nagel, S. R.
Liu, A. J.
TI Mapping the glassy dynamics of soft spheres onto hard-sphere behavior
SO EPL
LA English
DT Article
ID EQUATION-OF-STATE; FREE-VOLUME; SYSTEMS; FLUIDS; DIFFUSION; LIQUIDS;
ENTROPY
AB We show that the dynamics of soft-sphere systems with purely repulsive interactions can be described by introducing an effective hard-sphere diameter determined using the Andersen-Weeks-Chandler approximation. We find that this approximation, known to describe static properties of liquids, also gives a good description of a dynamical quantity, the relaxation time, even in the vicinity of the glass transition. Copyright (C) EPLA, 2011
C1 [Schmiedeberg, M.] Univ Dusseldorf, Inst Theoret Phys Weiche Mat 2, D-40225 Dusseldorf, Germany.
[Schmiedeberg, M.; Haxton, T. K.; Liu, A. J.] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA.
[Haxton, T. K.] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
[Nagel, S. R.] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
RP Schmiedeberg, M (reprint author), Univ Dusseldorf, Inst Theoret Phys Weiche Mat 2, D-40225 Dusseldorf, Germany.
EM schmiedeberg@thphy.uni-duesseldorf.de
RI Schmiedeberg, Michael/B-5256-2016
OI Schmiedeberg, Michael/0000-0001-7833-4906
FU German Academic Exchange Service (DAAD) [DE-FG02-05ER46199,
DE-FG02-03ER46088]; NSF [MRSEC DMR-0820054, MRSEC DMR-0520020]
FX We thank L. BERTHIER, O. KOGAN, T. SCHRODER, T. WITTEN, N. XU, and F.
ZAMPONI for helpful discussions. This work was supported by the German
Academic Exchange Service (DAAD) within the postdoc program (MS),
DE-FG02-05ER46199 (AJL and TKH), DE-FG02-03ER46088 (SRN), NSF-MRSEC
DMR-0820054 (SRN) and MRSEC DMR-0520020 (TKH).
NR 32
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U1 0
U2 19
PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
PI MULHOUSE
PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
SN 0295-5075
EI 1286-4854
J9 EPL-EUROPHYS LETT
JI EPL
PD NOV
PY 2011
VL 96
IS 3
AR 36010
DI 10.1209/0295-5075/96/36010
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 841UB
UT WOS:000296538200025
ER
PT J
AU Keith, JM
Meyerstein, D
Hall, MB
AF Keith, Jason M.
Meyerstein, Dan
Hall, Michael B.
TI Computational Investigations into Hydrogen-Atom Abstraction from Rhodium
Hydride Complexes by Methyl Radicals in Aqueous Solution
SO EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
LA English
DT Article
DE Kinetics; Rhodium; Radical reactions; Density functional calculations
ID TRANSITION-METAL-COMPLEXES; MOLECULAR-ORBITAL METHODS; PULSE-RADIOLYSIS;
BASIS-SET; DENSITY; POTENTIALS; KINETICS; EXCHANGE; BONDS
AB The controversy in the reported kinetics for the hydrogenatom abstraction reaction by methyl radicals for cis- and trans-[(Cyclam)Rh(III)HCl](+) and trans-[(Cyclam)(H(2)O)Rh(III)H](2+) has been resolved by studying several feasible mechanistic pathways with density functional theory. The only low-energy reaction mechanism predicted by these calculations involves a single-step radical-propagation mechanism in which the methyl radical simply abstracts the Rh bound H atom from the complex to form methane and the reduced Rh product. Previous experimental work on the chloride and aquo complexes suggested contradictory kinetic isotope effect (KIE) values of 0.66 +/- 0.30 and 1.42 +/- 0.07 as well as rate constants for the reaction differing by four orders of magnitude. The calculated mechanism predicts a KIE value of 1.08 and a high reaction rate. The alternative mechanisms are described briefly.
C1 [Keith, Jason M.; Hall, Michael B.] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA.
[Keith, Jason M.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Meyerstein, Dan] Ariel Univ Ctr Samaria, Dept Biol Chem, Ariel, Israel.
[Meyerstein, Dan] Ben Gurion Univ Negev, Dept Chem, Beer Sheva, Israel.
RP Keith, JM (reprint author), Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA.
EM jkeith@lanl.gov; hall@science.tamu.edu
FU Welch Foundation [A-0648]; Los Alamos National Laboratory; National
Nuclear Security Administration of the U. S. Department of Energy
[DE-AC5206NA25396]
FX Two of the authors (J. M. K. and M. B. H.) acknowledge the support of
The Welch Foundation (grant number A-0648). J. M. K. acknowledges a Los
Alamos National Laboratory Director's Postdoctoral Fellowship. The Los
Alamos National Laboratory is operated by Los Alamos National Security,
L. L. C. for the National Nuclear Security Administration of the U. S.
Department of Energy under Contract No. DE-AC5206NA25396. The authors
thank Andreja Bakac for helpful discussions.
NR 28
TC 1
Z9 1
U1 2
U2 5
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1434-1948
J9 EUR J INORG CHEM
JI Eur. J. Inorg. Chem.
PD NOV
PY 2011
IS 31
BP 4901
EP 4905
DI 10.1002/ejic.201100825
PG 5
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 847ZR
UT WOS:000297016100014
ER
PT J
AU Fritz, BG
Mackley, RD
AF Fritz, B. G.
Mackley, R. D.
TI "A Wet/Wet Differential Pressure Sensor for Measuring Vertical Hydraulic
Gradient," by Fritz and Mackley, January-February 2010, v. 48, no.
1:117-121 REPLY
SO GROUND WATER
LA English
DT Editorial Material
C1 [Fritz, B. G.; Mackley, R. D.] Pacific NW Natl Lab, Richland, WA 99354 USA.
RP Fritz, BG (reprint author), Pacific NW Natl Lab, Richland, WA 99354 USA.
EM Bradley.Fritz@pnl.gov
NR 1
TC 0
Z9 0
U1 1
U2 9
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0017-467X
J9 GROUND WATER
JI Ground Water
PD NOV-DEC
PY 2011
VL 49
IS 6
BP 782
EP 782
DI 10.1111/j.1745-6584.2011.00801.x
PG 1
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA 848RE
UT WOS:000297070200005
ER
PT J
AU Spane, FA
Mackley, RD
AF Spane, Frank A.
Mackley, Rob D.
TI Removal of River-Stage Fluctuations from Well Response Using Multiple
Regression
SO GROUND WATER
LA English
DT Article
ID AQUIFER RESPONSE; STREAM-STAGE; UNCONFINED AQUIFERS; RECHARGE
VARIATIONS; EARTH TIDES; WATER-LEVEL; FLOW; PENETRATION; STORAGE
AB Many contaminated unconfined aquifers are located in proximity to river systems. In groundwater studies, the physical presence of a river is commonly represented as a transient-head boundary that imposes hydrologic responses within the intersected unconfined aquifer. The periodic fluctuation of river-stage height at the boundary produces associated responses within the adjacent aquifer system, the magnitude of which is a function of the existing well, aquifer, boundary conditions, and characteristics of river-stage fluctuations. The presence of well responses induced by the river stage can significantly limit characterization and monitoring of remedial activities within the stress-impacted area. This article demonstrates the use of a time-domain, multiple-regression, convolution (superposition) method to develop well/aquifer river response function (RRF) relationships. Following RRF development, a multiple-regression deconvolution correction approach can be applied to remove river-stage effects from well water-level responses. Corrected well responses can then be analyzed to improve local aquifer characterization activities in support of optimizing remedial actions, assessing the area-of-influence of remediation activities, and determining mean groundwater flow and contaminant flux to the river system.
C1 [Spane, Frank A.; Mackley, Rob D.] Pacific NW Natl Lab, Environm Syst Grp, Richland, WA 99352 USA.
RP Spane, FA (reprint author), Pacific NW Natl Lab, Environm Syst Grp, POB 999, Richland, WA 99352 USA.
EM frank.spane@pnl.gov
FU U.S. Department of Energy, Office of Science, Climate and Environmental
Sciences Division; U.S. Department of Energy by Battelle
[DE-AC05-76RL01830]
FX A number of Pacific Northwest National Laboratory staff contributed
significantly to the paper preparation. Technical peer review and
editorial comments were provided by Vince Vermeul and Wayne Cosby,
respectively. Discussions with Chris Murray pertaining to statistical
method applications were particularly helpful. Field data were collected
by Kyle Parker, Darrell Newcomer, and Ray Clayton. The authors are
indebted to the Ground Water Editor (Mary Anderson) and three journal
reviewers (Jerry Fairley and two anonymous reviewers) for their many
useful comments. The authors would also like to acknowledge the
financial support provided by the U.S. Department of Energy, Office of
Science, Climate and Environmental Sciences Division for the paper
presentation. Pacific Northwest National Laboratory is operated for the
U.S. Department of Energy by Battelle under Contract DE-AC05-76RL01830.
NR 45
TC 5
Z9 5
U1 0
U2 9
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0017-467X
J9 GROUND WATER
JI Ground Water
PD NOV-DEC
PY 2011
VL 49
IS 6
BP 794
EP 807
DI 10.1111/j.1745-6584.2010.00780.x
PG 14
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA 848RE
UT WOS:000297070200007
PM 21133900
ER
PT J
AU Newell, CJ
Farhat, SK
Adamson, DT
Looney, BB
AF Newell, Charles J.
Farhat, Shahla K.
Adamson, David T.
Looney, Brian B.
TI Contaminant Plume Classification System Based on Mass Discharge
SO GROUND WATER
LA English
DT Article
ID QUANTIFICATION; ATTENUATION; FLUXES; WATER
AB Estimation of mass discharge has become an increasingly valuable analysis technique at sites with contaminated groundwater plumes. We propose a simple plume magnitude classification system based on mass discharge comprised of 10 separate magnitude categories, such as a "Mag 7 plume." This system can be a useful tool for scientists, engineers, regulators, and stakeholders to better communicate site conceptual models, prioritize sites, evaluate plumes both spatially and temporally, and determine potential impacts.
C1 [Newell, Charles J.; Farhat, Shahla K.; Adamson, David T.] GSI Environm Inc, Houston, TX 77098 USA.
[Looney, Brian B.] Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Newell, CJ (reprint author), GSI Environm Inc, 2211 Norfolk,Ste 1000, Houston, TX 77098 USA.
EM cjnewell@gsi-net.com
FU GSI Environmental Inc.
FX We thank GSI Environmental Inc. for funding this work. We also recognize
the contributions of the Department of Defense (Strategic Environmental
Research and Development Program [SERDP] and the Environmental Security
Technology Certification Program [ESTCP]) and of the Department of
Energy Environmental Management Office of Groundwater and Soil
Technology (EM-32) toward the development of the concepts presented. We
appreciate the suggestions and insightful comments of the three
anonymous peer reviewers; these generated changes that significantly
improved the article. The authors would also like to acknowledge Naji
Akladiss, Hans Stroo, and the ITRC Integrated DNAPL Site Strategy Team
for their interest and encouragement in this topic.
NR 45
TC 11
Z9 11
U1 4
U2 7
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0017-467X
J9 GROUND WATER
JI Ground Water
PD NOV-DEC
PY 2011
VL 49
IS 6
BP 914
EP 919
DI 10.1111/j.1745-6584.2010.00793.x
PG 6
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA 848RE
UT WOS:000297070200017
PM 21306359
ER
PT J
AU Ottavi, M
Pontarelli, S
DeBenedictis, EP
Salsano, A
Frost-Murphy, S
Kogge, PM
Lombardi, F
AF Ottavi, Marco
Pontarelli, Salvatore
DeBenedictis, Erik P.
Salsano, Adelio
Frost-Murphy, Sarah
Kogge, Peter M.
Lombardi, Fabrizio
TI Partially Reversible Pipelined QCA Circuits: Combining Low Power With
High Throughput
SO IEEE TRANSACTIONS ON NANOTECHNOLOGY
LA English
DT Article
DE Low power; nanotechnology; quantum cellular automata; reversible
computing
ID DOT CELLULAR-AUTOMATA; COMPUTATION; CLOCKING; LIMITS
AB This paper introduces an architecture for quantum-dot cellular automata circuits with the potential for high throughput and low power dissipation. The combination of regions with Bennett clocking and memory storage combines the low power advantage of reversible computing with the high throughput advantage of pipelining. Two case studies are initially presented to evaluate the proposed pipelined architecture in terms of throughput and power consumption due to information dissipation. A general model for assessing power consumption is also proposed. This paper shows that the advantages possible by using a Bennett clocking scheme also depend on circuit topology, thus also confirming the validity of the proposed analysis and model.
C1 [Ottavi, Marco; Pontarelli, Salvatore; Salsano, Adelio] Univ Roma Tor Vergata, I-00133 Rome, Italy.
[DeBenedictis, Erik P.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Frost-Murphy, Sarah] Murphy Comp Res, Edgewood, NM 87015 USA.
[Kogge, Peter M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Lombardi, Fabrizio] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA USA.
RP Ottavi, M (reprint author), Univ Roma Tor Vergata, I-00133 Rome, Italy.
EM ottavi@ing.uniroma2.it; pontarelli@ing.uniroma2.it; epdeben@sandia.gov;
salsano@ing.uniroma2.it; sarah@kinementium.com; kogge@cse.nd.edu;
lombardi@ece.neu.edu
RI Ottavi, Marco/H-4192-2011; Pontarelli, Salvatore/K-2651-2012
OI Ottavi, Marco/0000-0002-5064-7342; Pontarelli,
Salvatore/0000-0002-3626-6404
FU Italian Ministry for University and Research [96]; Sandia Corporation
[DE-AC04-94AL85000]
FX This work was supported in part by the Italian Ministry for University
and Research under Program "Incentivazione alla mobilita di studiosi
stranieri e italiani residenti all'estero," D. M. n.96, 23.04.2001 and
in part by the Sandia Corporation under Contract DE-AC04-94AL85000. A
preliminary version of this paper was presented in the Proceedings of
the ACM Symposium on Nano Architectures, Anaheim, CA, June 2010. The
review of this paper was arranged by Associate Editor D. Hammerstrom.
NR 20
TC 11
Z9 11
U1 0
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1536-125X
J9 IEEE T NANOTECHNOL
JI IEEE Trans. Nanotechnol.
PD NOV
PY 2011
VL 10
IS 6
BP 1383
EP 1393
DI 10.1109/TNANO.2011.2147796
PG 11
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Materials Science, Multidisciplinary; Physics, Applied
SC Engineering; Science & Technology - Other Topics; Materials Science;
Physics
GA 844JA
UT WOS:000296742300027
ER
PT J
AU Carlton, DB
Lambson, B
Scholl, A
Young, AT
Dhuey, SD
Ashby, PD
Tuchfeld, E
Bokor, J
AF Carlton, David B.
Lambson, Brian
Scholl, Andreas
Young, Antony T.
Dhuey, Scott D.
Ashby, Paul D.
Tuchfeld, Eduard
Bokor, Jeffrey
TI Computing in Thermal Equilibrium With Dipole-Coupled Nanomagnets
SO IEEE TRANSACTIONS ON NANOTECHNOLOGY
LA English
DT Article
DE Digital logic; nanomagnetism; post CMOS; spintronics
ID COMPUTATION
AB In the 1970s, work at IBM by Charles Bennett suggested the possibility of a computer operating near thermal equilibrium and dissipating energy near the thermodynamic limits. Here, we demonstrate experimentally that a computing architecture based on dipole-coupled nanomagnets can operate near thermal equilibrium without the assistance of externally applied magnetic fields. The dynamics of digital signal propagation is demonstrated with micromagnetic simulation and then verified experimentally using time-lapse photoemission electron microscopy. A logic gate that computes using energy from the thermal bath without external fields is also demonstrated. Nanomagnetic logic circuits operating under these conditions are expected to dissipate energy near the fundamental thermodynamic limits of computation.
C1 [Carlton, David B.; Lambson, Brian; Tuchfeld, Eduard; Bokor, Jeffrey] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA.
[Scholl, Andreas; Young, Antony T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Dhuey, Scott D.; Ashby, Paul D.; Bokor, Jeffrey] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Carlton, DB (reprint author), Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA.
EM dcarlton@berkeley.edu; lambson@eecs.berkeley.edu; eduard@berkeley.edu;
jbokor@eecs.berkeley.edu
RI Scholl, Andreas/K-4876-2012; Bokor, Jeffrey/A-2683-2011
FU Western Institute of Nanolectronics; Office of Science, Office of Basic
Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
FX This work was supported in part by the Western Institute of
Nanolectronics and in part by the Director, Office of Science, Office of
Basic Energy Sciences, of the U.S. Department of Energy under Contract
DE-AC02-05CH11231. D. B. Carlton and B. Lambson contributed equally to
this work. The review of this paper was arranged by Associate Editor E.
Towe.
NR 21
TC 6
Z9 6
U1 0
U2 8
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1536-125X
J9 IEEE T NANOTECHNOL
JI IEEE Trans. Nanotechnol.
PD NOV
PY 2011
VL 10
IS 6
BP 1401
EP 1404
DI 10.1109/TNANO.2011.2152851
PG 4
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Materials Science, Multidisciplinary; Physics, Applied
SC Engineering; Science & Technology - Other Topics; Materials Science;
Physics
GA 844JA
UT WOS:000296742300029
ER
PT J
AU Thomson, RK
Graves, CR
Scott, BL
Kiplinger, JL
AF Thomson, Robert K.
Graves, Christopher R.
Scott, Brian L.
Kiplinger, Jaqueline L.
TI Straightforward and efficient oxidation of tris(aryloxide) and
tris(amide) uranium(III) complexes using copper(I) halide reagents
SO INORGANIC CHEMISTRY COMMUNICATIONS
LA English
DT Article
DE Uranium; Aryloxide; Amide; Copper halide; Oxidative functionalization;
X-ray crystallography
ID CRYSTAL-STRUCTURES; CHEMISTRY; PENTAVALENT; ARYLOXIDE; TETRAVALENT;
LIGANDS
AB Reaction of the trivalent uranium complex U(O-2,6-(Bu2C6H3)-Bu-t)(3)(THF) (4) with copper(I) iodide affords the corresponding uranium(IV) mixed iodide-aryloxide complex (I)U(O-2,6-(Bu2C6H3)-Bu-t)(3)(THF) (5). The oxidative functionalization protocol can also be extended to the synthesis of (Cl)U[N(SiMe3)(2)](3) (7) from the reaction of the tris(amide) uranium(III) complex U[N(SiMe3)(2)](3) (6) with copper(I) chloride. These represent the first examples of Cu-based oxidative functionalization of simple trivalent uranium coordination complexes supported by non-metallocene ligand frameworks. With several advantages over existing oxidation methods for uranium tris(aryloxide) and tris(amide) complexes, this Cu-based procedure promises to be a useful and versatile synthetic protocol for uranium chemistry. The X-ray crystal structure of (I)U(O-2,6-(Bu2C6H3)-Bu-t)(3)(THF) (5) is also reported and represents a rare example of a structurally characterized 5-coordinate uranium aryloxide complex. In the solid-state, complex 5 adopts a distorted square pyramidal geometry about the uranium atom, with the iodide ligand occupying the axial position and the THF and three 2,6-di-tert-butylphenoxide ligands occupying the sites of the square pyramid base. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Thomson, Robert K.; Graves, Christopher R.; Scott, Brian L.; Kiplinger, Jaqueline L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Kiplinger, JL (reprint author), Los Alamos Natl Lab, Mail Stop J514, Los Alamos, NM 87545 USA.
EM kiplinger@lanl.gov
RI Kiplinger, Jaqueline/B-9158-2011; Scott, Brian/D-8995-2017
OI Kiplinger, Jaqueline/0000-0003-0512-7062; Scott,
Brian/0000-0003-0468-5396
FU Division of Chemical Sciences; Office of Basic Energy Science; Heavy
Element Chemistry program; LANL G.T. Seaborg Institute for Transactinium
Science; Los Alamos National Laboratory
FX For financial support of this work, we acknowledge the Division of
Chemical Sciences, Office of Basic Energy Science, Heavy Element
Chemistry program, the LANL G.T. Seaborg Institute for Transactinium
Science (postdoctoral fellowships to R.K.T. and C.R.G.) and the Los
Alamos National Laboratory LDRD program.
NR 31
TC 10
Z9 10
U1 3
U2 17
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1387-7003
J9 INORG CHEM COMMUN
JI Inorg. Chem. Commun.
PD NOV
PY 2011
VL 14
IS 11
BP 1742
EP 1744
DI 10.1016/j.inoche.2011.07.019
PG 3
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 848EV
UT WOS:000297034100012
ER
PT J
AU Hua, TQ
Ahluwalia, RK
AF Hua, Thanh Q.
Ahluwalia, Rajesh K.
TI Alane hydrogen storage for automotive fuel cells - Off-board
regeneration processes and efficiencies
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Article
DE Alane off-board regeneration; Trimethylamine; Dimethylethylarnine;
Transamination; WTT efficiency; GHG
AB Alane is considered an attractive carrier of hydrogen for on-board light-duty vehicle hydrogen storage systems because of its high intrinsic capacity (10.1 wt% H(2)), small heat of formation (similar to 7 kJ/mol H(2)), and fast apparent decomposition kinetics. Regeneration of spent Al by direct hydrogenation is impractical due to the extremely high hydrogen equilibrium pressure required (similar to 7000 bar). This paper examines the off-board regeneration of alane using a three-step organometallic process. In the first step, a relatively stable adduct of a tertiary amine and alane is formed from elemental aluminum and hydrogen gas under moderate conditions of temperature and pressure. The second step involves transamination of the adduct by a second tertiary amine to form a secondary tertiary amine-alane adduct that is less stable than the first adduct. This secondary amine alane adduct is thermally decomposed in the final step to yield alane and the secondary amine for reuse in the process. All reagents, except aluminum and hydrogen, are recovered and recycled. Two process flowsheets have been constructed, and energy consumption in each step of the regeneration process has been calculated. Additionally, total energy requirements across the entire chain of production, delivery, storage, recovery, and regeneration has been evaluated to determine the overall well-to-tank efficiency and greenhouse gas emissions. In one flowsheet, the well-to-tank efficiency is similar to 24.2% which improves to similar to 42.1% if waste heat is freely available from industrial sources. The estimated greenhouse gas emissions are 31.6 kg CO(2) (eq) per kg H(2) delivered to the vehicle and reduce to 20.6 kg/ kg-H(2) if free waste heat is readily available. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
C1 [Hua, Thanh Q.; Ahluwalia, Rajesh K.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Hua, TQ (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM hua@anl.gov
FU U.S. Department of Energy's Office of Energy Efficiency and Renewable
Energy; U.S. Department of Energy Office of Science laborator
[DE-ACO2-06CH11357]
FX This work was supported by the U.S. Department of Energy's Office of
Energy Efficiency and Renewable Energy, Fuel Cell Technologies Program.
The authors thank Drs. Jason Gratez and Jim Wegrzyn of Brookhaven
National Laboratory for many useful discussions. 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-ACO2-06CH11357.The U.S. Government retains for itself, and others
acting on its behalf, a paid-up nonexclusive, 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 13
TC 5
Z9 5
U1 2
U2 9
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD NOV
PY 2011
VL 36
IS 23
BP 15259
EP 15265
DI 10.1016/j.ijhydene.2011.08.081
PG 7
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 847SC
UT WOS:000296991800026
ER
PT J
AU Wu, HL
Kumar, A
Miao, HY
Holden-Wiltse, J
Mosmann, TR
Livingstone, AM
Belz, GT
Perelson, AS
Zand, MS
Topham, DJ
AF Wu, Hulin
Kumar, Arun
Miao, Hongyu
Holden-Wiltse, Jeanne
Mosmann, Timothy R.
Livingstone, Alexandra M.
Belz, Gabrielle T.
Perelson, Alan S.
Zand, Martin S.
Topham, David J.
TI Modeling of Influenza-Specific CD8(+) T Cells during the Primary
Response Indicates that the Spleen Is a Major Source of Effectors
SO JOURNAL OF IMMUNOLOGY
LA English
DT Article
ID A VIRUS-INFECTION; DIFFERENTIAL-EQUATION MODELS; ADAPTIVE
IMMUNE-RESPONSE; ANTIGEN PRESENTATION; MATHEMATICAL-MODEL; DENDRITIC
CELLS; BONE-MARROW; IN-VIVO; MULTIMODEL INFERENCE; MEASUREMENT ERROR
AB The biological parameters that determine the distribution of virus-specific CD8(+) T cells during influenza infection are not all directly measurable by experimental techniques but can be inferred through mathematical modeling. Mechanistic and semi-mechanistic ordinary differential equations were developed to describe the expansion, trafficking, and disappearance of activated virus-specific CD8(+!) T cells in lymph nodes, spleens, and lungs of mice during primary influenza A infection. An intensive sampling of virus-specific CD8(+) T cells from these three compartments was used to inform the models. Rigorous statistical fitting of the models to the experimental data allowed estimation of important biological parameters. Although the draining lymph node is the first tissue in which Ag-specific CD8(+) T cells are detected, it was found that the spleen contributes the greatest number of effector CD8(+) T cells to the lung, with rates of expansion and migration that exceeded those of the draining lymph node. In addition, models that were based on the number and kinetics of professional APCs fit the data better than those based on viral load, suggesting that the immune response is limited by Ag presentation rather than the amount of virus. Modeling also suggests that loss of effector T cells from the lung is significant and time dependent, increasing toward the end of the acute response. Together, these efforts provide a better understanding of the primary CD8(+) T cell response to influenza infection, changing the view that the spleen plays a minor role in the primary immune response. The Journal of Immunology, 2011, 187: 4474-4482.
C1 [Wu, Hulin; Kumar, Arun; Miao, Hongyu; Holden-Wiltse, Jeanne; Zand, Martin S.] Univ Rochester, Med Ctr, Dept Biostat & Computat Biol, Rochester, NY 14642 USA.
[Mosmann, Timothy R.; Livingstone, Alexandra M.; Topham, David J.] Univ Rochester, Med Ctr, David H Smith Ctr Vaccine Biol & Immunol, Rochester, NY 14642 USA.
[Mosmann, Timothy R.; Livingstone, Alexandra M.; Topham, David J.] Univ Rochester, Med Ctr, Dept Microbiol & Immunol, Rochester, NY 14642 USA.
[Belz, Gabrielle T.] Walter & Eliza Hall Inst Med Res, Div Mol Immunol, Melbourne, Vic 3052, Australia.
[Perelson, Alan S.; Zand, Martin S.] Los Alamos Natl Lab, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA.
Univ Rochester, Med Ctr, Div Nephrol, Dept Med, Rochester, NY 14642 USA.
RP Zand, MS (reprint author), Univ Rochester, Med Ctr, Dept Biostat & Computat Biol, 601 Elmwood Ave,Box 675, Rochester, NY 14642 USA.
EM martin_zand@urmc.rochester.edu; david_topham@urmc.rochester.edu
RI Belz, Gabrielle/C-9350-2013; Zand, Martin/A-8612-2015
OI Belz, Gabrielle/0000-0002-9660-9587;
FU National Institute of Allergy and Infectious Diseases
[HHSN272201000055C, R01 AI069351]; U.S. Department of Energy
[DE-AC52-679 06NA25396]
FX This work was supported by National Institute of Allergy and Infectious
Diseases Contract HHSN272201000055C and Grant R01 AI069351 (to M.S.Z.).
Portions of this work were performed under the auspices of the U.S.
Department of Energy under Contract DE-AC52-679 06NA25396 (to A.S.P.).
NR 63
TC 18
Z9 18
U1 1
U2 6
PU AMER ASSOC IMMUNOLOGISTS
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA
SN 0022-1767
J9 J IMMUNOL
JI J. Immunol.
PD NOV 1
PY 2011
VL 187
IS 9
BP 4474
EP 4482
DI 10.4049/jimmunol.1101443
PG 9
WC Immunology
SC Immunology
GA 841ET
UT WOS:000296496000013
PM 21948988
ER
PT J
AU Reid, BA
White, M
AF Reid, Beth A.
White, Martin
TI Towards an accurate model of the redshift-space clustering of haloes in
the quasi-linear regime
SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
LA English
DT Article
DE gravitation; galaxies: haloes; galaxies: statistics; cosmological
parameters; large-scale structure of Universe
ID LARGE-SCALE STRUCTURE; PERTURBATION-THEORY; OCCUPATION DISTRIBUTION;
POWER SPECTRUM; DISTORTIONS; UNIVERSE; SIMULATIONS; VELOCITIES;
EVOLUTION; GALAXIES
AB Observations of redshift-space distortions in spectroscopic galaxy surveys offer an attractive method for measuring the build-up of cosmological structure, which depends both on the expansion rate of the Universe and on our theory of gravity. The statistical precision with which redshift-space distortions can now be measured demands better control of our theoretical systematic errors. While many recent studies focus on understanding dark matter clustering in redshift space, galaxies occupy special places in the universe: dark matter haloes. In our detailed study of halo clustering and velocity statistics in 67.5 h(-3) Gpc(3) of N-body simulations, we uncover a complex dependence of redshift-space clustering on halo bias. We identify two distinct corrections which affect the halo redshift-space correlation function on quasi-linear scales (similar to 30-80 h(-1) Mpc): the non-linear mapping between real-space and redshift-space positions, and the non-linear suppression of power in the velocity divergence field. We model the first non-perturbatively using the scale-dependent Gaussian streaming model, which we show is accurate at the <0.5 (2) per cent level in transforming real-space clustering and velocity statistics into redshift space on scales s > 10 (s > 25) h(-1) Mpc for the monopole (quadrupole) halo correlation functions. The dominant correction to the Kaiser limit in this model scales like b(3). We use standard perturbation theory to predict the real-space pairwise halo velocity statistics. Our fully analytic model is accurate at the 2 per cent level only on scales s > 40 h (1) Mpc for the range of halo masses we studied (with b = 1.4-2.8). We find that recent models of halo redshift-space clustering that neglect the corrections from the bispectrum and higher order terms from the non-linear real-space to redshift-space mapping will not have the accuracy required for current and future observational analyses. Finally, we note that our simulation results confirm the essential but non-trivial assumption that on large scales, the bias inferred from the real-space clustering of haloes is the same as the one that determines their pairwise infall velocity amplitude at the per cent level.
C1 [Reid, Beth A.; White, Martin] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[White, Martin] Univ Calif Berkeley, Dept Phys & Astron, Berkeley, CA 94720 USA.
RP Reid, BA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM beth.ann.reid@gmail.com
RI White, Martin/I-3880-2015
OI White, Martin/0000-0001-9912-5070
FU NASA [51280, NAS 5-26555]; Space Telescope Science Institute; NSF
FX BAR thanks Jeremy Tinker and Ravi Sheth for insightful discussions.
Support for this work was provided by NASA through Hubble Fellowship
grant 51280 awarded by the Space Telescope Science Institute, which is
operated by the Association of Universities for Research in Astronomy,
Inc., for NASA, under contract NAS 5-26555. MW is supported by the NSF
and NASA. The simulations used in this paper were analysed at the
National Energy Research Scientific Computing Center, the Shared
Research Computing Services Pilot of the University of California and
the Laboratory Research Computing project at the Lawrence Berkeley
National Laboratory.
NR 63
TC 104
Z9 105
U1 0
U2 0
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0035-8711
J9 MON NOT R ASTRON SOC
JI Mon. Not. Roy. Astron. Soc.
PD NOV
PY 2011
VL 417
IS 3
BP 1913
EP 1927
DI 10.1111/j.1365-2966.2011.19379.x
PG 15
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 848HX
UT WOS:000297043600021
ER
PT J
AU West, TO
AF West, Tristram O.
TI MITIGATION Monitoring informs management
SO NATURE CLIMATE CHANGE
LA English
DT Editorial Material
ID UNITED-STATES; CARBON; RESOLUTION; FLUX
C1 5825 Univ Res Court, Joint Global Change Res Inst, Pacific NW Natl Lab, College Pk, MD 20740 USA.
RP West, TO (reprint author), 5825 Univ Res Court, Joint Global Change Res Inst, Pacific NW Natl Lab, College Pk, MD 20740 USA.
EM tristram.west@pnnl.gov
RI West, Tristram/C-5699-2013
OI West, Tristram/0000-0001-7859-0125
NR 8
TC 1
Z9 1
U1 0
U2 5
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1758-678X
J9 NAT CLIM CHANGE
JI Nat. Clim. Chang.
PD NOV
PY 2011
VL 1
IS 8
BP 399
EP 400
PG 3
WC Environmental Sciences; Environmental Studies; Meteorology & Atmospheric
Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 849FQ
UT WOS:000297111400017
ER
PT J
AU Thompson, JD
AF Thompson, J. D.
TI SUPERCONDUCTORS Heavy electron seeks same
SO NATURE PHYSICS
LA English
DT News Item
C1 Los Alamos Natl Lab, Condensed Matter & Magnet Sci Grp, Los Alamos, NM 87545 USA.
RP Thompson, JD (reprint author), Los Alamos Natl Lab, Condensed Matter & Magnet Sci Grp, POB 1663, Los Alamos, NM 87545 USA.
EM jdt@lanl.gov
NR 10
TC 0
Z9 0
U1 0
U2 5
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1745-2473
J9 NAT PHYS
JI Nat. Phys.
PD NOV
PY 2011
VL 7
IS 11
BP 838
EP 839
DI 10.1038/nphys2129
PG 2
WC Physics, Multidisciplinary
SC Physics
GA 844ID
UT WOS:000296740000008
ER
PT J
AU Gonsalves, AJ
Nakamura, K
Lin, C
Panasenko, D
Shiraishi, S
Sokollik, T
Benedetti, C
Schroeder, CB
Geddes, CGR
van Tilborg, J
Osterhoff, J
Esarey, E
Toth, C
Leemans, WP
AF Gonsalves, A. J.
Nakamura, K.
Lin, C.
Panasenko, D.
Shiraishi, S.
Sokollik, T.
Benedetti, C.
Schroeder, C. B.
Geddes, C. G. R.
van Tilborg, J.
Osterhoff, J.
Esarey, E.
Toth, C.
Leemans, W. P.
TI Tunable laser plasma accelerator based on longitudinal density tailoring
SO NATURE PHYSICS
LA English
DT Article
ID ELECTRON-BEAMS; INJECTION; PULSES
AB Laser plasma accelerators(1) have produced high-quality electron beams with GeV energies from cm-scale devices(2) and are being investigated as hyperspectral fs light sources producing THz to gamma-ray radiation(3-5), and as drivers for future high-energy colliders(6,7). These applications require a high degree of stability, beam quality and tunability. Here we report on a technique to inject electrons into the accelerating field of a laser-driven plasma wave and coupling of this injector to a lower-density, separately tunable plasma for further acceleration. The technique relies on a single laser pulse powering a plasma structure with a tailored longitudinal density profile, to produce beams that can be tuned in the range of 100-400 MeV with per-cent-level stability, using laser pulses of less than 40 TW. The resulting device is a simple stand-alone accelerator or the front end for a multistage higher-energy accelerator.
C1 [Gonsalves, A. J.; Nakamura, K.; Lin, C.; Panasenko, D.; Shiraishi, S.; Sokollik, T.; Benedetti, C.; Schroeder, C. B.; Geddes, C. G. R.; van Tilborg, J.; Osterhoff, J.; Esarey, E.; Toth, C.; Leemans, W. P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Lin, C.] Peking Univ, Beijing 100871, Peoples R China.
[Shiraishi, S.] Univ Chicago, Chicago, IL 60637 USA.
RP Leemans, WP (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM WPLeemans@lbl.gov
RI Sokollik, Thomas/P-2584-2015;
OI Schroeder, Carl/0000-0002-9610-0166
FU Office of Science, Office of High Energy Physics, US Department of
Energy [DE-AC02-05CH11231]; National Science Foundation [PHY-0935197,
PHY-0917687]; Defense Advanced Research Projects Agency (DARPA)
FX The authors would like to thank E. Cormier-Michel, M. Chen, J. Mefford,
N. Matlis and G. Plateau for discussions. We appreciate contributions
from D. Syversrud, Z. Eisentraut, K. Sihler and N. Ybarrolaza. This work
was supported by the Director, Office of Science, Office of High Energy
Physics, US Department of Energy, under contract No DE-AC02-05CH11231,
by the National Science Foundation under grants PHY-0935197 and
PHY-0917687 and by the Defense Advanced Research Projects Agency (DARPA)
NR 29
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PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1745-2473
J9 NAT PHYS
JI Nat. Phys.
PD NOV
PY 2011
VL 7
IS 11
BP 862
EP 866
DI 10.1038/NPHYS2071
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 844ID
UT WOS:000296740000014
ER
PT J
AU Singh, S
Jain, AK
Tuli, JK
AF Singh, Sukhjeet
Jain, A. K.
Tuli, Jagdish K.
TI Nuclear Data Sheets for A=222
SO NUCLEAR DATA SHEETS
LA English
DT Article
ID STABLE OCTUPOLE DEFORMATION; INTERACTING-BOSON MODEL; GAMMA-RAY SPECTRA;
EVEN-EVEN NUCLEI; CONVERSION ELECTRON-SPECTROSCOPY; ATOMIC MASS
EVALUATION; HEAVY-ION REACTIONS; U-230 DECAY SERIES; HIGH-SPIN STATES;
OR-EQUAL-TO
AB The ENSDF evaluation for A=222 mass chain (1996E101) has been updated on the basis of the experimental results, since September 1995 (literature cutoff date in 1996E101), from various reaction and decay studies for all nuclides in A=222 mass chain (Z=84 to 92). A new nuclide (Po-222) has since been observed. In addition, new measurements have been reported in Rn, Th and Ra nuclides. The results obtained from various theoretical studies are given as comments. The updated level and decay schemes, and experimental decay and reaction data on which they are based, are summarized and presented for all the nuclides with mass number A=222. The adopted values of level energies, level spins and parities are given, and gamma-ray energies, intensities, as well as other nuclear properties are presented. The references, J pi arguments, and necessary comments are given in the text. All Q values have been adopted from 2011AuZZ. Theoretical work of 2009Mo27 was consulted.
C1 [Singh, Sukhjeet] Maharishi Markandeshwar Univ, Dept Phys, Mullana 133207, Haryana, India.
[Jain, A. K.] Indian Inst Technol, Dept Phys, Roorkee 247667, Uttarakhand, India.
[Tuli, Jagdish K.] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA.
RP Singh, S (reprint author), Maharishi Markandeshwar Univ, Dept Phys, Mullana 133207, Haryana, India.
FU Department of Science and Technology, India; University, Mullana, India;
BirBikram Singh (Institute of Physics,Bhubaneswar, India)
FX The work at M.M. University, Mullana, India and at ITT Roorkee, Roorkee,
India was supported by the Department of Science and Technology, India.;
Support from J.K. Sharma (M.M. University, Mullana, India) and BirBikram
Singh (Institute of Physics,Bhubaneswar, India) is gratefully
acknowledged.
NR 279
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U1 0
U2 2
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0090-3752
J9 NUCL DATA SHEETS
JI Nucl. Data Sheets
PD NOV
PY 2011
VL 112
IS 11
BP 2851
EP 2886
DI 10.1016/j.nds.2011.10.002
PG 36
WC Physics, Nuclear
SC Physics
GA 848WK
UT WOS:000297085600002
ER
PT J
AU Ferron, JR
Holcomb, CT
Luce, TC
Politzer, PA
Turco, F
DeBoo, JC
Doyle, EJ
In, Y
La Haye, RJ
Murakami, M
Okabayashi, M
Park, JM
Petrie, TW
Petty, CC
Reimerdes, H
AF Ferron, J. R.
Holcomb, C. T.
Luce, T. C.
Politzer, P. A.
Turco, F.
DeBoo, J. C.
Doyle, E. J.
In, Y.
La Haye, R. J.
Murakami, M.
Okabayashi, M.
Park, J. M.
Petrie, T. W.
Petty, C. C.
Reimerdes, H.
TI Balancing current drive and heating in DIII-D high noninductive current
fraction discharges through choice of the toroidal field
SO NUCLEAR FUSION
LA English
DT Article
ID CYCLOTRON CURRENT DRIVE; CURRENT PROFILE; STEADY-STATE; TOKAMAK;
OPTIMIZATION; PLASMAS; OPERATION; TRANSPORT; EVOLUTION
AB In order to maintain stationary values of the stored energy and the plasma current in a tokamak discharge with all of the current driven noninductively, the sum of the alpha-heating power and the power required to provide externally driven current must be equal to the power required to maintain the pressure against transport losses. In a study of high noninductive current fraction discharges in the DIII-D tokamak, it is shown that in the case of present-day tokamaks with no alpha-heating, adjustment of the toroidal field strength (B(T)) is a tool to obtain this balance between the required current drive and heating powers with other easily modifiable discharge parameters (beta(N), q(95), discharge shape, n(e)) fixed at values chosen to satisfy specific constraints. With all of the external power sources providing both heating and current drive, and beta(N) and q(95) fixed, the fraction of externally driven current scales with B(T) with little change in the bootstrap current fraction, thus allowing the noninductive current fraction to be adjusted.
C1 [Ferron, J. R.; Luce, T. C.; Politzer, P. A.; DeBoo, J. C.; La Haye, R. J.; Petrie, T. W.; Petty, C. C.] Gen Atom Co, San Diego, CA 92186 USA.
[Holcomb, C. T.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Turco, F.] Oak Ridge Associated Univ, Oak Ridge, TN 37831 USA.
[Doyle, E. J.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[In, Y.] FAR TECH Inc, San Diego, CA 92121 USA.
[Murakami, M.; Park, J. M.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Okabayashi, M.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Reimerdes, H.] Columbia Univ, New York, NY 10027 USA.
RP Ferron, JR (reprint author), Gen Atom Co, POB 85608, San Diego, CA 92186 USA.
FU US Department of Energy [DE-FC02-04ER54698, DE-AC52-07NA27344,
DE-FG02-06ER84442, DE-AC05-00OR22725, DE-AC02-09CH11466,
DE-FG02-04ER54761]
FX This work was supported in part by the US Department of Energy under
DE-FC02-04ER54698, DE-AC52-07NA27344, DE-FG02-06ER84442,
DE-AC05-00OR22725, DE-AC02-09CH11466, and DE-FG02-04ER54761.
NR 34
TC 2
Z9 2
U1 0
U2 2
PU INT ATOMIC ENERGY AGENCY
PI VIENNA
PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA
SN 0029-5515
J9 NUCL FUSION
JI Nucl. Fusion
PD NOV
PY 2011
VL 51
IS 11
AR 113007
DI 10.1088/0029-5515/51/11/113007
PG 7
WC Physics, Fluids & Plasmas
SC Physics
GA 846LT
UT WOS:000296904000010
ER
PT J
AU He, HD
Dong, JQ
Fu, GY
He, ZX
Jiang, HB
Wang, ZT
Zheng, GY
Liu, F
Long, YX
Shen, Y
Wang, LF
AF He, H. D.
Dong, J. Q.
Fu, G. Y.
He, Z. X.
Jiang, H. B.
Wang, Z. T.
Zheng, G. Y.
Liu, F.
Long, Y. X.
Shen, Y.
Wang, L. F.
TI Study of fishbone instabilities induced by energetic particles in
tokamak plasmas
SO NUCLEAR FUSION
LA English
DT Article
ID INTERNAL KINK INSTABILITY; MAGNETOHYDRODYNAMIC MODES; TRAPPED-PARTICLES;
HIGH-BETA; STABILIZATION; ELECTRONS; DRIVEN; JET
AB Fishbone instabilities, driven by trapped and barely passing energetic particles (EPs), including electrons and ions (EEs or EIs), are numerically studied with the spatial distribution of EPs taken into account. The dispersion relations of the modes are derived for slowing-down and Maxwellian models of EP energy distribution. It is found that the modes with frequency comparable to the toroidal precession frequency omega(d) of EPs are resonantly excited. Electron and ion fishbone modes share the same growth rates and real frequencies but rotate in opposite directions. The frequency of the modes is found to be higher in the case of near-axis heating than that of off-axis heating. The fishbone instabilities can only be excited by barely trapped or barely passing and deeply trapped particles in positive and negative spatial density gradient regions, respectively. In addition, the most interesting feature of the fishbone modes induced by barely passing particles is that there exists a second stable regime in the higher beta(h) (pressure of EPs/toroidal magnetic pressure) region, and the modes exist in the range of beta(th1) < beta(h) < beta(th2) (beta(th) is threshold or critical beta of EPs) only. The results are well confirmed with Nyquist technology. The possible physical mechanism for the existence of the second stable regime is discussed.
C1 [He, H. D.; Dong, J. Q.; He, Z. X.; Jiang, H. B.; Wang, Z. T.; Zheng, G. Y.; Liu, F.; Long, Y. X.; Shen, Y.; Wang, L. F.] SW Inst Phys, Chengdu, Peoples R China.
[Dong, J. Q.] Zhejiang Univ, Inst Fus Theory & Simulat, Hangzhou 310003, Zhejiang, Peoples R China.
[Fu, G. Y.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP He, HD (reprint author), SW Inst Phys, Chengdu, Peoples R China.
FU National Natural Science Foundation of China [11175058]; National Basic
Research Program of China [2008CB717806]; ITER Project in China
[2009GB105005]; National Magnetic Confinement Fusion Science Program
[2009GB101002]
FX The discussions with R. White and L. Chen are gratefully acknowledged.
This work is supported by the National Natural Science Foundation of
China grant no 11175058, the National Basic Research Program of China
under grant no 2008CB717806, the ITER Project in China under grant no
2009GB105005 and the National Magnetic Confinement Fusion Science
Program under grant no 2009GB101002.
NR 24
TC 10
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U1 1
U2 6
PU INT ATOMIC ENERGY AGENCY
PI VIENNA
PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA
SN 0029-5515
J9 NUCL FUSION
JI Nucl. Fusion
PD NOV
PY 2011
VL 51
IS 11
AR 113012
DI 10.1088/0029-5515/51/11/113012
PG 10
WC Physics, Fluids & Plasmas
SC Physics
GA 846LT
UT WOS:000296904000015
ER
PT J
AU Hong, BG
Hwang, YS
Kang, JS
Lee, DW
Joo, HG
Ono, M
AF Hong, B. G.
Hwang, Y. S.
Kang, J. S.
Lee, D. W.
Joo, H. G.
Ono, M.
TI Conceptual design study of a superconducting spherical tokamak reactor
with a self-consistent system analysis code
SO NUCLEAR FUSION
LA English
DT Article
ID ASPECT-RATIO
AB In a spherical tokamak (ST) reactor, the radial build of toroidal field coil and the shield play a key role in determining the size of the reactor. For self-consistent determination of the reactor components and physics parameters, a system analysis code is coupled with a one-dimensional radiation transport code. A conceptual design study of a compact superconducting ST reactor with an aspect ratio of up to 2.0 is conducted and the optimum radial build is identified. It is shown that the use of an improved shielding material and high-temperature superconducting magnets with high critical current density opens up the possibility of a fusion power plant with compact size and small re-circulating power simultaneously at a low aspect ratio, and that by using an inboard neutron reflector instead of a breeding blanket, tritium self-sufficiency is possible with an outboard blanket only and thus a compact-sized all superconducting coil ST reactor is viable.
C1 [Hwang, Y. S.; Kang, J. S.; Lee, D. W.; Joo, H. G.] Seoul Natl Univ, Seoul 151744, South Korea.
[Hong, B. G.] Chonbuk Natl Univ, Jeonju Si 561756, South Korea.
[Ono, M.] PPPL, Princeton, NJ 08543 USA.
RP Hwang, YS (reprint author), Seoul Natl Univ, 599 Gwanak Ro, Seoul 151744, South Korea.
EM yhwang@snu.ac.kr
RI Hwang, Yong-Seok/D-8347-2012
FU Korea Science and Engineering Foundation (KOSEF); Korea government
(MEST) [2010-0001839]
FX This work was supported by the Korea Science and Engineering Foundation
(KOSEF) grant funded by the Korea government (MEST) under the contract
no. 2010-0001839.
NR 16
TC 14
Z9 14
U1 0
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0029-5515
EI 1741-4326
J9 NUCL FUSION
JI Nucl. Fusion
PD NOV
PY 2011
VL 51
IS 11
AR 113013
DI 10.1088/0029-5515/51/11/113013
PG 6
WC Physics, Fluids & Plasmas
SC Physics
GA 846LT
UT WOS:000296904000016
ER
PT J
AU Kaye, SM
Maingi, R
Battaglia, D
Bell, RE
Chang, CS
Hosea, J
Kugel, H
LeBlanc, BP
Meyer, H
Park, GY
Wilson, JR
AF Kaye, S. M.
Maingi, R.
Battaglia, D.
Bell, R. E.
Chang, C. S.
Hosea, J.
Kugel, H.
LeBlanc, B. P.
Meyer, H.
Park, G. Y.
Wilson, J. R.
TI L-H threshold studies in NSTX
SO NUCLEAR FUSION
LA English
DT Article
ID SPHERICAL TORUS EXPERIMENT; HEATED DIVERTOR DISCHARGES; RADIAL
ELECTRIC-FIELD; HIGH-CONFINEMENT; MODE TRANSITION; ASPECT-RATIO;
HIGH-BETA; TOKAMAK; PLASMA; DENSITY
AB Recent experiments in the low aspect ratio National Spherical Torus Experiment (NSTX) have been run in support of the high priority ITER and ITPA issue of access to the H-mode. Specifically, a series of experiments showed reduced power threshold values for deuterium versus helium plasmas, and for plasmas with lower current, lower triangularity and with lithium conditioning. Application of n = 3 fields at the plasma edge resulted in higher power thresholds. To within the constraints of temporal and spatial resolutions, no systematic difference in T-e, n(e), p(e), T-i, v or their derivatives was found in discharges that transitioned into the H-mode versus those at slightly lower power that did not. Finally, H-98y,H-2 similar to 1 confinement quality could be achieved for powers just above the threshold power in ELM-free conditions.
C1 [Kaye, S. M.; Bell, R. E.; Chang, C. S.; Wilson, J. R.] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Maingi, R.; Battaglia, D.; Hosea, J.; Kugel, H.; LeBlanc, B. P.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Chang, C. S.; Park, G. Y.] NYU, Courant Inst Math Sci, New York, NY USA.
[Meyer, H.] Culham Lab, CCFE, Abingdon OX14 3DB, Oxon, England.
[Park, G. Y.] Natl Fus Res Inst, Taejon, South Korea.
RP Kaye, SM (reprint author), Princeton Univ, Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM skaye@pppl.gov
FU US Department of Energy [DE-AC02-09CH11466, DE-AC05-00OR22725]
FX This work has been supported by US Department of Energy Contract Numbers
DE-AC02-09CH11466 and DE-AC05-00OR22725.
NR 35
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U1 2
U2 19
PU INT ATOMIC ENERGY AGENCY
PI VIENNA
PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA
SN 0029-5515
J9 NUCL FUSION
JI Nucl. Fusion
PD NOV
PY 2011
VL 51
IS 11
AR 113019
DI 10.1088/0029-5515/51/11/113019
PG 10
WC Physics, Fluids & Plasmas
SC Physics
GA 846LT
UT WOS:000296904000022
ER
PT J
AU Kolemen, E
Gates, DA
Gerhardt, S
Kaita, R
Kugel, H
Mueller, D
Rowley, C
Soukhanovskii, V
AF Kolemen, E.
Gates, D. A.
Gerhardt, S.
Kaita, R.
Kugel, H.
Mueller, D.
Rowley, C.
Soukhanovskii, V.
TI Plasma modelling results and shape control improvements for NSTX
SO NUCLEAR FUSION
LA English
DT Article
AB New shape control implementations and dynamics studies on the National Spherical Torus eXperiment (NSTX) (Ono et al 2000 Nucl. Fusion 40 557-61) are summarized. In particular, strike point position, X-point height and squareness control, and two new system-identification methods/control-tuning algorithms were put into operation. The PID controller for the strike point was tuned by analysing the step response of the strike point position to the poloidal coil currents, employing the Ziegler-Nichols method. An offline system identification of the plasma response to the control inputs based on ARMAX (Ljung 1999 System Identification: Theory for the User (Englewood Cliffs, NJ: Prentice-Hall)) input-output models was implemented. With this tool, rough estimates of the improvements were realized and several control improvements were identified. An online automatic relay-feedback PID tuning algorithm, which has the advantage of tuning the controller in one shot, was implemented, thus optimizing the use of experimental time. Using these new capabilities, all four upper/lower/inner/outer strike points were simultaneous controlled and a combined X-point height, strike point radius control was implemented. The new and improved control with better accuracy and robustness enabled successful plasma operations with the liquid lithium divertor. Additionally this year, the first independent squareness control was developed. This will enable better optimization of the NSTX shape for stability and high performance in the future.
C1 [Kolemen, E.; Gates, D. A.; Gerhardt, S.; Kaita, R.; Kugel, H.; Mueller, D.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Rowley, C.] Princeton Univ, Mech & Aerosp Dept, Princeton, NJ 08544 USA.
[Soukhanovskii, V.] Lawrence Livermore Natl Lab, Livermore, CA USA.
RP Kolemen, E (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM ekolemen@pppl.gov
RI Rowley, Clarence/F-9068-2013
FU US DOE [DE-AC02-09CH11466]
FX This work was supported by US DOE Contract DE-AC02-09CH11466.
NR 17
TC 9
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U1 0
U2 11
PU INT ATOMIC ENERGY AGENCY
PI VIENNA
PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA
SN 0029-5515
J9 NUCL FUSION
JI Nucl. Fusion
PD NOV
PY 2011
VL 51
IS 11
AR 113024
DI 10.1088/0029-5515/51/11/113024
PG 9
WC Physics, Fluids & Plasmas
SC Physics
GA 846LT
UT WOS:000296904000027
ER
PT J
AU Raman, R
Jardin, SC
Menard, J
Jarboe, TR
Bell, M
Mueller, D
Nelson, BA
Ono, M
AF Raman, R.
Jardin, S. C.
Menard, J.
Jarboe, T. R.
Bell, M.
Mueller, D.
Nelson, B. A.
Ono, M.
TI Transient CHI start-up simulations with the TSC
SO NUCLEAR FUSION
LA English
DT Article
ID COAXIAL HELICITY INJECTION; SUSTAINMENT; TOKAMAK; PLASMA
AB Transient coaxial helicity injection (CHI) has been successfully used in the helicity injected torus-II and the National Spherical Torus Experiment (NSTX) for a demonstration of closed-flux current generation without the use of the central solenoid. The Tokamak Simulation Code (TSC) has now been used to understand the scaling of CHI generated toroidal current with variations in the external toroidal field and injector flux. These simulations show favourable scaling of the CHI start-up process with increasing machine size. Closed flux in TSC is achieved as a result of the decaying CHI discharge that induces a positive loop voltage generating the initial closed-flux current.
C1 [Raman, R.; Jarboe, T. R.; Nelson, B. A.] Univ Washington, Dept Aeronaut & Astronaut, Seattle, WA 98195 USA.
[Jardin, S. C.; Menard, J.; Bell, M.; Mueller, D.; Ono, M.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Raman, R (reprint author), Univ Washington, Dept Aeronaut & Astronaut, AERB 352250, Seattle, WA 98195 USA.
OI Menard, Jonathan/0000-0003-1292-3286
FU US Department of Energy [DE-AC02-09CH11466, DE-FG02-99ER54519 AM08]
FX This manuscript has been authored by Princeton University and
collaborators under contract numbers DE-AC02-09CH11466 and
DE-FG02-99ER54519 AM08 with the US Department of Energy.
NR 19
TC 8
Z9 8
U1 1
U2 5
PU INT ATOMIC ENERGY AGENCY
PI VIENNA
PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA
SN 0029-5515
J9 NUCL FUSION
JI Nucl. Fusion
PD NOV
PY 2011
VL 51
IS 11
AR 113018
DI 10.1088/0029-5515/51/11/113018
PG 8
WC Physics, Fluids & Plasmas
SC Physics
GA 846LT
UT WOS:000296904000021
ER
PT J
AU Ryter, F
Angioni, C
Giroud, C
Peeters, AG
Biewer, T
Bilato, R
Joffrin, E
Johnson, T
Leggate, H
Lerche, E
Madison, G
Mantica, P
Van Eester, D
Voitsekhovitch, I
AF Ryter, F.
Angioni, C.
Giroud, C.
Peeters, A. G.
Biewer, T.
Bilato, R.
Joffrin, E.
Johnson, T.
Leggate, H.
Lerche, E.
Madison, G.
Mantica, P.
Van Eester, D.
Voitsekhovitch, I.
CA JET Contributors
TI Simultaneous analysis of ion and electron heat transport by power
modulation in JET
SO NUCLEAR FUSION
LA English
DT Article
ID ASDEX UPGRADE; TEMPERATURE GRADIENT; ECH MODULATION; FUSION PLASMAS;
MODE PLASMAS; CONFINEMENT; TOKAMAK; SIMULATIONS; BOUNDARIES; PROFILE
AB Heating power modulation experiments using ion cyclotron resonance heating (ICRH) in the (3)He minority scheme have been performed in the JET tokamak to investigate heat transport properties. This RF scheme provides a dominant localized ion heating, but also some electron heating, and therefore both ion and electron heat channels were modulated. This allows us to carry out a simultaneous transport analysis of ion and electron heat transport channels, including transient transport phenomena. This also provides an experimental assessment of the ICRH heat sources of the (3)He scheme. The modulation approach, so far widely used for electron transport studies, has been validated for ion heat transport in these experiments and yields results on stiffness and threshold of the ion temperature gradient (ITG)-driven ion heat transport. The results for the electron channel demonstrate the importance of the ITG-driven, off-diagonal, contribution to electron heat transport in plasmas with significant ion heating.
C1 [Ryter, F.; Angioni, C.; Bilato, R.] Max Planck Inst Plasma Phys, EURATOM Assoc, D-85748 Garching, Germany.
[Giroud, C.; Leggate, H.; Madison, G.; Voitsekhovitch, I.] EURATOM UKAEA Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
[Peeters, A. G.] Univ Warwick, Ctr Fus Space & Astrophys, Coventry 7AL, W Midlands, England.
[Biewer, T.] Oak Ridge Natl Lab, Div Fus Energy, Oak Ridge, TN 37831 USA.
[Joffrin, E.] JET EFDA CSU, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
[Johnson, T.] EURATOM VR Assoc, EES, KTH, S-10044 Stockholm, Sweden.
[Lerche, E.; Van Eester, D.] Assoc Euratom Belgian State, LPP ERM KMS, TEC, B-1000 Brussels, Belgium.
[Mantica, P.] EURATOM ENEA CNR Assoc, Ist Fis Plasma, I-20125 Milan, Italy.
JET EFDA, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
RP Ryter, F (reprint author), Max Planck Inst Plasma Phys, EURATOM Assoc, D-85748 Garching, Germany.
EM ryter@ipp.mpg.de
RI Peeters, Arthur/A-1281-2009; Mantica, Paola/K-3033-2012;
OI Biewer, Theodore/0000-0001-7456-3509
FU European Communities; EFDA
FX The authors are very grateful to J. Candy and R.E. Waltz for providing
the gyro-kinetic code GYRO. Simulations were performed at the parallel
server Power-6 (Vip) of the IPP-MPG Rechenzentrum in Garching bei
Munchen, Germany. This work, supported by the European Communities under
the contract of Association EURATOM-IPP, was carried out within the
framework of the EFDA. The views and opinions expressed herein do not
necessarily reflect those of the European Commission.
NR 42
TC 12
Z9 12
U1 0
U2 12
PU INT ATOMIC ENERGY AGENCY
PI VIENNA
PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA
SN 0029-5515
J9 NUCL FUSION
JI Nucl. Fusion
PD NOV
PY 2011
VL 51
IS 11
AR 113016
DI 10.1088/0029-5515/51/11/113016
PG 34
WC Physics, Fluids & Plasmas
SC Physics
GA 846LT
UT WOS:000296904000019
ER
PT J
AU Yoon, SW
Ahn, JW
Jeon, YM
Suzuki, T
Hahn, SH
Ko, WH
Lee, KD
Chung, JI
Nam, YU
Kim, J
Hong, SH
Kim, HS
Kim, WC
Oh, YK
Kwak, JG
Park, YS
Sabbagh, SA
Humpreys, D
Na, YS
Kim, KM
Yun, GS
Hyatt, A
Gohil, P
Bae, YS
Yang, HL
Park, HK
Kwon, M
Lee, GS
AF Yoon, S. W.
Ahn, J. -W.
Jeon, Y. M.
Suzuki, T.
Hahn, S. H.
Ko, W. H.
Lee, K. D.
Chung, J. I.
Nam, Y. U.
Kim, J.
Hong, S. H.
Kim, H. -S.
Kim, W. C.
Oh, Y. K.
Kwak, J. G.
Park, Y. S.
Sabbagh, S. A.
Humpreys, D.
Na, Y. -S.
Kim, K. M.
Yun, G. S.
Hyatt, A.
Gohil, P.
Bae, Y. S.
Yang, H. L.
Park, H. K.
Kwon, M.
Lee, G. S.
CA KSTAR Team
TI Characteristics of the first H-mode discharges in KSTAR
SO NUCLEAR FUSION
LA English
DT Article
ID HEATED DIVERTOR DISCHARGES; DIII-D TOKAMAK; IMPROVED CONFINEMENT;
PLASMA-CONFINEMENT; TCV; REGIME; ENERGY
AB Typical ELMy H-mode discharges have been obtained in the KSTAR tokamak with the combined auxiliary heating of neutral beam injection (NBI) and electron cyclotron resonant heating (ECRH). The minimum external heating power required for the L-H transition is about 0.9MW for a line-averaged density of similar to 2.0 x 10(19) m(-3). There is a clear indication of the increase in the L-H threshold power with decreasing density for densities lower than similar to 2 x 10(19) m(-3). The L-H transitions typically occurred shortly after the beginning of plasma current flattop (I-p = 0.6 MA) period and after the fast shaping to a highly elongated double-null divertor configuration. The maximum heating power available was marginal for the L-H transition, which is also implied by the relatively slow transition time (>10 ms) and the synchronization of the transition with large sawtooth crashes. The initial analysis of thermal energy confinement time (tau(E)) indicates that tau(E) is higher than the prediction of multi-machine scaling laws by 10-20%. A clear increase in electron and ion temperature in the pedestal is observed in the H-mode phase but the core temperature does not change significantly. On the other hand, the toroidal rotation velocity increased over the whole radial range in the H-mode phase. The measured ELM frequency was around 10-30 Hz for the large ELM bursts and 50-100 Hz for the smaller ones. In addition, very small and high frequency (200-300 Hz) ELMs appeared between large ELM spikes when the ECRH is added to the NBI-heated H-mode plasmas. The drop of total stored energy during a large ELM is up to 5% in most cases.
C1 [Yoon, S. W.; Jeon, Y. M.; Hahn, S. H.; Ko, W. H.; Lee, K. D.; Chung, J. I.; Nam, Y. U.; Kim, J.; Hong, S. H.; Kim, W. C.; Oh, Y. K.; Kwak, J. G.; Bae, Y. S.; Yang, H. L.; Kwon, M.; Lee, G. S.; KSTAR Team] Natl Fus Res Inst, Taejon, South Korea.
[Ahn, J. -W.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Suzuki, T.] Japan Atom Energy Agcy, Naka, Ibaraki, Japan.
[Kim, H. -S.] Seoul Natl Univ, Seoul, South Korea.
[Park, Y. S.; Sabbagh, S. A.] Columbia Univ, New York, NY USA.
[Humpreys, D.; Hyatt, A.; Gohil, P.] Gen Atom Co, San Diego, CA USA.
[Kim, K. M.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Yun, G. S.; Park, H. K.] Postech, Pohang, South Korea.
RP Yoon, SW (reprint author), Natl Fus Res Inst, Taejon, South Korea.
FU Korea Ministry of Education, Science, and Technology; US Department of
Energy; Japanese Ministry of Education, Culture, Sports, Science and
Technology
FX This work was supported by the Korea Ministry of Education, Science, and
Technology. The authors are also grateful to the US Department of Energy
and the Japanese Ministry of Education, Culture, Sports, Science and
Technology for supporting the international collaboration.
NR 25
TC 16
Z9 16
U1 0
U2 8
PU INT ATOMIC ENERGY AGENCY
PI VIENNA
PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA
SN 0029-5515
J9 NUCL FUSION
JI Nucl. Fusion
PD NOV
PY 2011
VL 51
IS 11
AR 113009
DI 10.1088/0029-5515/51/11/113009
PG 9
WC Physics, Fluids & Plasmas
SC Physics
GA 846LT
UT WOS:000296904000012
ER
PT J
AU Crease, RP
AF Crease, Robert P.
TI Critical Point Mikhail who?
SO PHYSICS WORLD
LA English
DT Editorial Material
C1 [Crease, Robert P.] SUNY Stony Brook, Dept Philosophy, Stony Brook, NY 11790 USA.
[Crease, Robert P.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Crease, RP (reprint author), SUNY Stony Brook, Dept Philosophy, Stony Brook, NY 11790 USA.
EM rcrease@notes.cc.sunysb.edu
NR 1
TC 2
Z9 2
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-8585
J9 PHYS WORLD
JI Phys. World
PD NOV
PY 2011
VL 24
IS 11
BP 21
EP 21
PG 1
WC Physics, Multidisciplinary
SC Physics
GA 848TZ
UT WOS:000297079300015
ER
PT J
AU Jagust, WJ
Mormino, EC
AF Jagust, William J.
Mormino, Elizabeth C.
TI Lifespan brain activity, beta-amyloid, and Alzheimer's disease
SO TRENDS IN COGNITIVE SCIENCES
LA English
DT Review
ID NORMAL OLDER-ADULTS; APOLIPOPROTEIN-E; FUNCTIONAL CONNECTIVITY; AEROBIC
GLYCOLYSIS; EPSILON-4 ALLELE; TRANSGENIC MICE; LOBE FUNCTION; GENETIC
RISK; DEFAULT-MODE; IN-VIVO
AB Alzheimer's disease (AD) is the most common cause of progressive cognitive decline and dementia in adults. While the amyloid cascade hypothesis of AD posits an initiating role for the beta-amyloid (A beta) protein, there is limited understanding of why A beta is deposited. A growing body of evidence based on in vitro, animal studies and human imaging work suggests that synaptic activity increases A beta, which is deposited preferentially in multi-modal brain regions that show continuous levels of heightened activation and plasticity across the lifespan. Imaging studies of people with genetic predispositions to AD are consistent with these findings, suggesting a mechanism whereby neural efficiency or cognitive reserve may diminish A beta deposition. The aggregated findings unify observations from cellular and molecular studies with human cognitive neuroscience to reveal potential mechanisms of AD development.
C1 [Jagust, William J.; Mormino, Elizabeth C.] Univ Calif Berkeley, Helen Wills Neurosci Inst, Berkeley, CA 94720 USA.
[Jagust, William J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
RP Jagust, WJ (reprint author), Univ Calif Berkeley, Helen Wills Neurosci Inst, Berkeley, CA 94720 USA.
EM jagust@berkeley.edu
FU NIH [AG034570, AG032814]; Alzheimer's Association [ZEN-08-87090]
FX The authors would like to thank Michael Greicius, Susan Landau and Gil
Rabinovici for helpful discussion and feedback during the drafting of
this opinion. This work was supported by NIH grants AG034570 and
AG032814 and the Alzheimer's Association ZEN-08-87090.
NR 73
TC 80
Z9 81
U1 5
U2 33
PU ELSEVIER SCIENCE LONDON
PI LONDON
PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND
SN 1364-6613
J9 TRENDS COGN SCI
JI TRENDS COGN. SCI.
PD NOV
PY 2011
VL 15
IS 11
BP 520
EP 526
DI 10.1016/j.tics.2011.09.004
PG 7
WC Behavioral Sciences; Neurosciences; Psychology, Experimental
SC Behavioral Sciences; Neurosciences & Neurology; Psychology
GA 848XJ
UT WOS:000297088100006
PM 21983147
ER
PT J
AU Ufuktepe, Y
Akgul, G
Aksoy, F
Nordlund, D
AF Ufuktepe, Y.
Akgul, G.
Aksoy, F.
Nordlund, D.
TI Thickness and angular dependence of the L-edge X-ray absorption of
nickel thin films
SO X-RAY SPECTROMETRY
LA English
DT Article
DE NEXAFS; nickel; transmission yield; 3d transition metals; electron
escape depth
ID MAGNETIC-CIRCULAR-DICHROISM; 3D TRANSITION-METALS;
ELECTRON-SPECTROSCOPY; FERROMAGNETIC NICKEL; SPIN-POLARIZATION; 2P
ABSORPTION; NI; SPECTRA; FE; PHOTOABSORPTION
AB We report on the near-edge X-ray absorption fine structure spectroscopy of the L(3) (2p(3/2)) and L(2) (2p(1/2)) edges for ferromagnetic pure nickel transition metal and show that the L(2,3) edge peak intensity and satellite feature at similar to 6 eV above the L(3) edge in nickel increase with increasing nickel film thickness both in the total electron yield and transmission modes. The absorption spectra of nickel metal, however, exhibit strong angular-dependent effects when measured in total electron yield mode. In addition, we calculated the mean electron escape depth of the emitted electrons (lambda(e)), which was found for pure nickel metal to be lambda(e) = 25 +/- 2 angstrom. We point out the advantages of the total electron yield technique for the study of the L-edge of 3d transition metals. Copyright (C) 2011 John Wiley & Sons, Ltd.
C1 [Ufuktepe, Y.] Cukurova Univ, Dept Phys, TR-01330 Adana, Turkey.
[Akgul, G.] Nigde Univ, Bor Vocat Sch, TR-51240 Nigde, Turkey.
[Aksoy, F.] Nigde Univ, Dept Phys, TR-51100 Nigde, Turkey.
[Nordlund, D.] Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA.
RP Ufuktepe, Y (reprint author), Cukurova Univ, Dept Phys, TR-01330 Adana, Turkey.
EM ufuk@cu.edu.tr
RI Nordlund, Dennis/A-8902-2008
OI Nordlund, Dennis/0000-0001-9524-6908
FU Stanford Synchrotron Radiation Lightsource (SSRL); Department of Energy
(DOE), Office of Basic Energy Science; University of Cukurova; DOE
FX The authors express their thanks to Prof. Piero Pianetta, Prof. Herman
Winick, and the staff at the Stanford Synchrotron Radiation Lightsource
(SSRL) for their excellent support, where the NEXAFS experiments have
been carried out. SSRL is supported by the Department of Energy (DOE),
Office of Basic Energy Science. Y.U. acknowledges financial support from
the University of Cukurova and the DOE Cooperative Research Program for
the Synchrotron-light for Experimental Science and Applications in the
Middle East (SESAME).
NR 28
TC 2
Z9 2
U1 2
U2 22
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0049-8246
J9 X-RAY SPECTROM
JI X-Ray Spectrom.
PD NOV-DEC
PY 2011
VL 40
IS 6
BP 427
EP 431
DI 10.1002/xrs.1362
PG 5
WC Spectroscopy
SC Spectroscopy
GA 848LP
UT WOS:000297053400006
ER
PT J
AU Tooley, JE
Khangulov, V
Lees, JPB
Schlessman, JL
Bewley, MC
Heroux, A
Bosch, J
Hill, RB
AF Tooley, James E.
Khangulov, Victor
Lees, Jonathan P. B.
Schlessman, Jamie L.
Bewley, Maria C.
Heroux, Annie
Bosch, Juergen
Hill, R. Blake
TI The 1.75 angstrom resolution structure of fission protein Fis1 from
Saccharomyces cerevisiae reveals elusive interactions of the
autoinhibitory domain
SO ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY AND CRYSTALLIZATION
COMMUNICATIONS
LA English
DT Article
ID WD REPEAT PROTEIN; MITOCHONDRIAL FISSION; MAMMALIAN-CELLS; DNM1P;
DIVISION; GTPASE; MDV1P; CRYSTALLOGRAPHY; REFINEMENT; COMPLEXES
AB Fis1 mediates mitochondrial and peroxisomal fission. It is tail-anchored to these organelles by a transmembrane domain, exposing a soluble cytoplasmic domain. Previous studies suggested that Fis1 is autoinhibited by its N-terminal region. Here, a 1.75 angstrom resolution crystal structure of the Fis1 cytoplasmic domain from Saccharomyces cerevisiae is reported which adopts a tetratricopeptide-repeat fold. It is observed that this fold creates a concave surface important for fission, but is sterically occluded by its N-terminal region. Thus, this structure provides a physical basis for autoinhibition and allows a detailed examination of the interactions that stabilize the inhibited state of this molecule.
C1 [Bosch, Juergen] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Biochem & Mol Biol, Baltimore, MD 21205 USA.
[Tooley, James E.; Lees, Jonathan P. B.; Hill, R. Blake] Johns Hopkins Univ, Dept Biol, Baltimore, MD 21218 USA.
[Khangulov, Victor] Johns Hopkins Univ, Dept Biophys, Baltimore, MD 21218 USA.
[Schlessman, Jamie L.] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
[Bewley, Maria C.] Penn State Univ, Coll Med, Dept Biochem & Mol Biol, Hershey, PA 17033 USA.
[Heroux, Annie] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
[Hill, R. Blake] Johns Hopkins Univ, Dept Chem, Baltimore, MD 21218 USA.
RP Bosch, J (reprint author), Johns Hopkins Bloomberg Sch Publ Hlth, Dept Biochem & Mol Biol, Baltimore, MD 21205 USA.
EM jubosch@jhsph.edu; hill@jhu.edu
RI Bosch, Jurgen/E-9370-2011
OI Bosch, Jurgen/0000-0002-2624-4105
FU Offices of Biological and Environmental Research; Basic Energy Sciences
of the US Department of Energy; National Center for Research Resources
of the National Institutes of Health [P41RR012408]; NIH [R01GM067180]
FX We gratefully acknowledge Drs Emily Coonrod and Janet M. Shaw for
providing Fis1 plasmids for this study. Crystallographic data were
obtained on beamline X25 of the Brookhaven National Synchrotron Light
Source. Financial support comes principally from the Offices of
Biological and Environmental Research and of Basic Energy Sciences of
the US Department of Energy and from the National Center for Research
Resources of the National Institutes of Health, grant No. P41RR012408.
This work was supported by NIH grant R01GM067180 (to RBH).
NR 36
TC 3
Z9 3
U1 0
U2 0
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1744-3091
J9 ACTA CRYSTALLOGR F
JI Acta Crystallogr. F-Struct. Biol. Cryst. Commun.
PD NOV
PY 2011
VL 67
BP 1310
EP 1315
DI 10.1107/S1744309111029368
PN 11
PG 6
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Biophysics; Crystallography
SC Biochemistry & Molecular Biology; Biophysics; Crystallography
GA 844ZT
UT WOS:000296793300001
PM 22102223
ER
PT J
AU Bianchetti, CM
Elsen, NL
Fox, BG
Phillips, GN
AF Bianchetti, Christopher M.
Elsen, Nathaniel L.
Fox, Brian G.
Phillips, George N., Jr.
TI Structure of cellobiose phosphorylase from Clostridium thermocellum in
complex with phosphate
SO ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY AND CRYSTALLIZATION
COMMUNICATIONS
LA English
DT Article
ID CRYSTAL-STRUCTURE; CELLULASE; CLASSIFICATION; CARBOHYDRATE;
GLUCOAMYLASE; EVOLUTIONARY; SYSTEM
AB Clostridium thermocellum is a cellulosome-producing bacterium that is able to efficiently degrade and utilize cellulose as a sole carbon source. Cellobiose phosphorylase (CBP) plays a critical role in cellulose degradation by catalyzing the reversible phosphate-dependent hydrolysis of cellobiose, the major product of cellulose degradation, into alpha-D-glucose 1-phosphate and D-glucose. CBP from C. thermocellum is a modular enzyme composed of four domains [N-terminal domain, helical linker, (alpha/alpha)(6)-barrel domain and C-terminal domain] and is a member of glycoside hydrolase family 94. The 2.4 angstrom resolution X-ray crystal structure of C. thermocellum CBP reveals the residues involved in coordinating the catalytic phosphate as well as the residues that are likely to be involved in substrate binding and discrimination.
C1 [Bianchetti, Christopher M.; Elsen, Nathaniel L.; Fox, Brian G.; Phillips, George N., Jr.] Univ Wisconsin, Dept Biochem, Madison, WI 53706 USA.
[Bianchetti, Christopher M.; Elsen, Nathaniel L.; Fox, Brian G.; Phillips, George N., Jr.] Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA.
RP Phillips, GN (reprint author), Univ Wisconsin, Dept Biochem, Madison, WI 53706 USA.
EM phillips@biochem.wisc.edu
FU DOE Great Lakes Bioenergy Research Center (DOE Office of Science BER)
[DE-FC02-07ER64494]; US Department of Energy, Office of Science, Office
of Basic Energy Sciences [DE-AC02-06CH11357]; Michigan Economic
Development Corporation; Michigan Technology Tri-Corridor [085P1000817]
FX This work was funded in part by the DOE Great Lakes Bioenergy Research
Center (DOE Office of Science BER DE-FC02-07ER64494). Use of the
Advanced Photon Source was supported by the US Department of Energy,
Office of Science, Office of Basic Energy Sciences under Contract No.
DE-AC02-06CH11357. Use of the LS-CAT Sector 21 was supported by the
Michigan Economic Development Corporation and the Michigan Technology
Tri-Corridor for the support of this research program (Grant
085P1000817). The authors would like to thank the Center for Eukaryotic
Structural Genomics for the use of various equipment and reagents.
NR 26
TC 9
Z9 9
U1 1
U2 15
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1744-3091
J9 ACTA CRYSTALLOGR F
JI Acta Crystallogr. F-Struct. Biol. Cryst. Commun.
PD NOV
PY 2011
VL 67
BP 1345
EP 1349
DI 10.1107/S1744309111032660
PN 11
PG 5
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Biophysics; Crystallography
SC Biochemistry & Molecular Biology; Biophysics; Crystallography
GA 844ZT
UT WOS:000296793300007
PM 22102229
ER
PT J
AU Chhabra, SR
Butland, G
Elias, DA
Chandonia, JM
Fok, OY
Juba, TR
Gorur, A
Allen, S
Leung, CM
Keller, KL
Reveco, S
Zane, GM
Semkiw, E
Prathapam, R
Gold, B
Singer, M
Ouellet, M
Szakal, ED
Jorgens, D
Price, MN
Witkowska, HE
Beller, HR
Arkin, AP
Hazen, TC
Biggin, MD
Auer, M
Wall, JD
Keasling, JD
AF Chhabra, S. R.
Butland, G.
Elias, D. A.
Chandonia, J. -M.
Fok, O. -Y.
Juba, T. R.
Gorur, A.
Allen, S.
Leung, C. M.
Keller, K. L.
Reveco, S.
Zane, G. M.
Semkiw, E.
Prathapam, R.
Gold, B.
Singer, M.
Ouellet, M.
Szakal, E. D.
Jorgens, D.
Price, M. N.
Witkowska, H. E.
Beller, H. R.
Arkin, A. P.
Hazen, T. C.
Biggin, M. D.
Auer, M.
Wall, J. D.
Keasling, J. D.
TI Generalized Schemes for High-Throughput Manipulation of the
Desulfovibrio vulgaris Genome
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID TRANSPOSON MUTANT LIBRARY; ESCHERICHIA-COLI K-12;
SUBCELLULAR-LOCALIZATION; PSEUDOMONAS-AERUGINOSA; BACILLUS-SUBTILIS;
PROTEIN COMPLEXES; STRANDED-DNA; E. COLI; HILDENBOROUGH; SYSTEM
AB The ability to conduct advanced functional genomic studies of the thousands of sequenced bacteria has been hampered by the lack of available tools for making high-throughput chromosomal manipulations in a systematic manner that can be applied across diverse species. In this work, we highlight the use of synthetic biological tools to assemble custom suicide vectors with reusable and interchangeable DNA "parts" to facilitate chromosomal modification at designated loci. These constructs enable an array of downstream applications, including gene replacement and the creation of gene fusions with affinity purification or localization tags. We employed this approach to engineer chromosomal modifications in a bacterium that has previously proven difficult to manipulate genetically, Desulfovibrio vulgaris Hildenborough, to generate a library of over 700 strains. Furthermore, we demonstrate how these modifications can be used for examining metabolic pathways, protein-protein interactions, and protein localization. The ubiquity of suicide constructs in gene replacement throughout biology suggests that this approach can be applied to engineer a broad range of species for a diverse array of systems biological applications and is amenable to high-throughput implementation.
C1 [Chhabra, S. R.; Chandonia, J. -M.; Fok, O. -Y.; Reveco, S.; Ouellet, M.; Price, M. N.; Arkin, A. P.; Keasling, J. D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Butland, G.; Gorur, A.; Leung, C. M.; Prathapam, R.; Gold, B.; Singer, M.; Jorgens, D.; Auer, M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Elias, D. A.; Juba, T. R.; Keller, K. L.; Zane, G. M.; Semkiw, E.; Wall, J. D.] Univ Missouri, Dept Biochem, Columbia, MO USA.
[Elias, D. A.; Juba, T. R.; Keller, K. L.; Zane, G. M.; Semkiw, E.; Wall, J. D.] Univ Missouri, Dept Mol Microbiol & Immunol, Columbia, MO USA.
[Beller, H. R.; Hazen, T. C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Allen, S.; Szakal, E. D.; Witkowska, H. E.] Univ Calif San Francisco, Dept Cell Biol, San Francisco, CA 94143 USA.
[Allen, S.; Szakal, E. D.; Witkowska, H. E.] Univ Calif San Francisco, Dept Tissue Biol, San Francisco, CA 94143 USA.
[Arkin, A. P.; Keasling, J. D.] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
[Arkin, A. P.; Keasling, J. D.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
[Chhabra, S. R.; Fok, O. -Y.; Reveco, S.; Ouellet, M.; Beller, H. R.; Arkin, A. P.; Hazen, T. C.; Keasling, J. D.] Joint BioEnergy Inst, Emeryville, CA USA.
[Biggin, M. D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Genom Div, Berkeley, CA 94720 USA.
RP Chhabra, SR (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, 1 Cyclotron Rd,Mail Stop 978R412, Berkeley, CA 94720 USA.
EM srchhabra@lbl.gov; gpbutland@lbl.gov
RI Elias, Dwayne/B-5190-2011; Keasling, Jay/J-9162-2012; Beller,
Harry/H-6973-2014; Arkin, Adam/A-6751-2008; Hazen, Terry/C-1076-2012;
OI Elias, Dwayne/0000-0002-4469-6391; Keasling, Jay/0000-0003-4170-6088;
Arkin, Adam/0000-0002-4999-2931; Hazen, Terry/0000-0002-2536-9993;
Price, Morgan/0000-0002-4251-0362
FU ENIGMA [DE-AC02-05CH11231]; Office of Science, Office of Biological and
Environmental Research, U.S. Department of Energy [DE-AC02-05CH11231]
FX This work received support from ENIGMA under contract no.
DE-AC02-05CH11231. This work conducted at the Joint BioEnergy Institute
was supported by the Office of Science, Office of Biological and
Environmental Research, U.S. Department of Energy, under contract no.
DE-AC02-05CH11231.
NR 51
TC 8
Z9 8
U1 1
U2 14
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD NOV
PY 2011
VL 77
IS 21
BP 7595
EP 7604
DI 10.1128/AEM.05495-11
PG 10
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 842DD
UT WOS:000296568200019
PM 21908633
ER
PT J
AU Wrighton, KC
Thrash, JC
Melnyk, RA
Bigi, JP
Byrne-Bailey, KG
Remis, JP
Schichnes, D
Auer, M
Chang, CJ
Coates, JD
AF Wrighton, K. C.
Thrash, J. C.
Melnyk, R. A.
Bigi, J. P.
Byrne-Bailey, K. G.
Remis, J. P.
Schichnes, D.
Auer, M.
Chang, C. J.
Coates, J. D.
TI Evidence for Direct Electron Transfer by a Gram-Positive Bacterium
Isolated from a Microbial Fuel Cell
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID DISSIMILATORY FE(III) REDUCTION; C-TYPE CYTOCHROMES;
GEOBACTER-SULFURREDUCENS; ELECTRICITY-GENERATION; SP-NOV.;
HYPERTHERMOPHILIC ARCHAEON; GEOTHRIX-FERMENTANS; OXIDE REDUCTION; IRON;
MICROORGANISMS
AB Despite their importance in iron redox cycles and bioenergy production, the underlying physiological, genetic, and biochemical mechanisms of extracellular electron transfer by Gram-positive bacteria remain insufficiently understood. In this work, we investigated respiration by Thermincola potens strain JR, a Gram-positive isolate obtained from the anode surface of a microbial fuel cell, using insoluble electron acceptors. We found no evidence that soluble redox-active components were secreted into the surrounding medium on the basis of physiological experiments and cyclic voltammetry measurements. Confocal microscopy revealed highly stratified biofilms in which cells contacting the electrode surface were disproportionately viable relative to the rest of the biofilm. Furthermore, there was no correlation between biofilm thickness and power production, suggesting that cells in contact with the electrode were primarily responsible for current generation. These data, along with cryo-electron microscopy experiments, support contact-dependent electron transfer by T. potens strain JR from the cell membrane across the 37-nm cell envelope to the cell surface. Furthermore, we present physiological and genomic evidence that c-type cytochromes play a role in charge transfer across the Gram-positive bacterial cell envelope during metal reduction.
C1 [Wrighton, K. C.; Thrash, J. C.; Melnyk, R. A.; Byrne-Bailey, K. G.; Coates, J. D.] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA.
[Wrighton, K. C.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
[Thrash, J. C.] Oregon State Univ, Dept Microbiol, Corvallis, OR 97331 USA.
[Bigi, J. P.; Chang, C. J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Bigi, J. P.; Chang, C. J.] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
[Remis, J. P.; Auer, M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Schichnes, D.] Univ Calif Berkeley, Coll Nat Resources Biol Imaging Facil, Berkeley, CA 94720 USA.
RP Coates, JD (reprint author), Univ Calif Berkeley, Dept Plant & Microbial Biol, 271 Koshland Hall, Berkeley, CA 94720 USA.
EM jdcoates@berkeley.edu
OI Thrash, Cameron/0000-0003-0896-9986
FU DOE LDRD; UCB SPS; Tien Scholars Biodiversity Graduate Fellowship; NSF
FX Funding for this work was provided to J.D.C. through the DOE LDRD and
the UCB SPS programs. K. C. W. was supported by a Tien Scholars
Biodiversity Graduate Fellowship, and J.P.B. was supported by an NSF
Graduate Fellowship. C.J.C. is a Howard Hughes Medical Institute
investigator.
NR 62
TC 53
Z9 55
U1 8
U2 69
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD NOV
PY 2011
VL 77
IS 21
BP 7633
EP 7639
DI 10.1128/AEM.05365-11
PG 7
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 842DD
UT WOS:000296568200023
PM 21908627
ER
PT J
AU Zhuang, WQ
Yi, S
Feng, XY
Zinder, SH
Tang, YJJ
Alvarez-Cohen, L
AF Zhuang, Wei-Qin
Yi, Shan
Feng, Xueyang
Zinder, Stephen H.
Tang, Yinjie J.
Alvarez-Cohen, Lisa
TI Selective Utilization of Exogenous Amino Acids by Dehalococcoides
ethenogenes Strain 195 and Its Effects on Growth and Dechlorination
Activity
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID TRANSCRIPTOMIC MICROARRAY ANALYSIS; ESCHERICHIA-COLI K-12; GENOME
SEQUENCE; ANAEROBIC BACTERIUM; VINYL-CHLORIDE; FLUX ANALYSIS;
TRICHLOROETHENE; TRANSPORTER; STOICHIOMETRY; GROUNDWATER
AB Bacteria of the genus Dehalococcoides are important members of bioremediation communities because of their ability to detoxify chloroethenes to the benign end product ethene. Genome-enabled studies conducted with Dehalococcoides ethenogenes 195 have revealed that two ATP-binding cassette (ABC)-type amino acid transporters are expressed during its exponential growth stages. In light of previous findings that Casamino Acids enhanced its dechlorination activity, we hypothesized that strain 195 is capable of importing amino acids from its environment to facilitate dechlorination and growth. To test this hypothesis, we applied isotopomer-based dilution analysis with (13)C-labeled acetate to differentiate the amino acids that were taken up by strain 195 from those synthesized de novo and to determine the physiological changes caused by the significantly incorporated amino acids. Our results showed that glutamate/glutamine and aspartate/asparagine were almost exclusively synthesized by strain 195, even when provided in excess in the medium. In contrast, phenylalanine, isoleucine, leucine, and methionine were identified as the four most highly incorporated amino acids, at levels > 30% of respective proteinogenic amino acids. When either phenylalanine or all four highly incorporated amino acids were added to the defined mineral medium, the growth rates, dechlorination activities, and yields of strain 195 were enhanced to levels similar to those observed with supplementation with 20 amino acids. However, genes for the putative ABC-type amino acids transporters and phenylalanine biosynthesis exhibited insignificant regulation in response to the imported amino acids. This study also demonstrates that using isotopomer-based metabolite analysis can be an efficient strategy for optimizing nutritional conditions for slow-growing microorganisms.
C1 [Zhuang, Wei-Qin; Yi, Shan; Alvarez-Cohen, Lisa] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
[Feng, Xueyang; Tang, Yinjie J.] Washington Univ, St Louis, MO 63130 USA.
[Zinder, Stephen H.] Cornell Univ, Microbiol Sect, Ithaca, NY 14853 USA.
[Alvarez-Cohen, Lisa] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Alvarez-Cohen, L (reprint author), Univ Calif Berkeley, Dept Civil & Environm Engn, 760 Davis Hall, Berkeley, CA 94720 USA.
EM alvarez@ce.berkeley.edu
RI Yi, Shan/I-4589-2012; ZHUANG, WEI-QIN/A-5235-2014; Feng,
Xueyang/G-1295-2015;
OI Yi, Shan/0000-0003-1371-0418; ZHUANG, WEI-QIN/0000-0001-9600-5225; Feng,
Xueyang/0000-0003-4426-5732
FU Superfund Basic Research Program [NIEHS ES04705]; U.S. Department of
Energy [ER-1587]; NSF [MCB0954016]
FX This research was funded by the Superfund Basic Research Program under
grant NIEHS ES04705, the Strategic Environmental Research and
Development Program at U.S. Department of Energy (project ER-1587). This
study was also partially supported by an NSF Career Grant (MCB0954016).
NR 43
TC 14
Z9 14
U1 0
U2 20
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD NOV
PY 2011
VL 77
IS 21
BP 7797
EP 7803
DI 10.1128/AEM.05676-11
PG 7
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 842DD
UT WOS:000296568200042
PM 21890673
ER
PT J
AU Ryu, JS
Shary, S
Houtman, CJ
Panisko, EA
Korripally, P
John, FJS
Crooks, C
Siika-aho, M
Magnuson, JK
Hammel, KE
AF Ryu, Jae San
Shary, Semarjit
Houtman, Carl J.
Panisko, Ellen A.
Korripally, Premsagar
John, Franz J. St
Crooks, Casey
Siika-aho, Matti
Magnuson, Jon K.
Hammel, Kenneth E.
TI Proteomic and Functional Analysis of the Cellulase System Expressed by
Postia placenta during Brown Rot of Solid Wood
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID BASIDIOMYCETE GLOEOPHYLLUM-TRABEUM; TRICHODERMA-REESEI CELLULASES;
ENZYMATIC-HYDROLYSIS; MICROCRYSTALLINE CELLULOSE; FOMITOPSIS-PALUSTRIS;
CHEMICAL-COMPOSITION; PHOSPHORIC-ACID; PORIA-PLACENTA; DECAY; FUNGUS
AB Brown rot basidiomycetes have an important ecological role in lignocellulose recycling and are notable for their rapid degradation of wood polymers via oxidative and hydrolytic mechanisms. However, most of these fungi apparently lack processive (exo-acting) cellulases, such as cellobiohydrolases, which are generally required for efficient cellulolysis. The recent sequencing of the Postia placenta genome now permits a proteomic approach to this longstanding conundrum. We grew P. placenta on solid aspen wood, extracted proteins from the biodegrading substrate, and analyzed tryptic digests by shotgun liquid chromatography-tandem mass spectrometry. Comparison of the data with the predicted P. placenta proteome revealed the presence of 34 likely glycoside hydrolases, but only four of these-two in glycoside hydrolase family 5, one in family 10, and one in family 12-have sequences that suggested possible activity on cellulose. We expressed these enzymes heterologously and determined that they all exhibited endoglucanase activity on phosphoric acid-swollen cellulose. They also slowly hydrolyzed filter paper, a more crystalline substrate, but the soluble/insoluble reducing sugar ratios they produced classify them as nonprocessive. Computer simulations indicated that these enzymes produced soluble/insoluble ratios on reduced phosphoric acid-swollen cellulose that were higher than expected for random hydrolysis, which suggests that they could possess limited exo activity, but they are at best 10-fold less processive than cellobiohydrolases. It appears likely that P. placenta employs a combination of oxidative mechanisms and endo-acting cellulases to degrade cellulose efficiently in the absence of a significant processive component.
C1 [Ryu, Jae San; Shary, Semarjit; Houtman, Carl J.; Korripally, Premsagar; John, Franz J. St; Crooks, Casey; Hammel, Kenneth E.] US Forest Serv, Inst Microbial & Biochem Technol, Madison, WI 53726 USA.
[Ryu, Jae San] Gyeongsangnam Do Agr Res & Extens Serv, Ecofriendliness Res Dept, Jinju 660360, South Korea.
[Ryu, Jae San; Shary, Semarjit; Korripally, Premsagar; Hammel, Kenneth E.] Univ Wisconsin, Dept Bacteriol, Madison, WI 53706 USA.
[Panisko, Ellen A.; Magnuson, Jon K.] Pacific NW Natl Lab, Chem & Biol Proc Dev Grp, Richland, WA 99352 USA.
[Siika-aho, Matti] VTT Tech Res Ctr, FI-02044 Espoo, Finland.
RP Hammel, KE (reprint author), US Forest Serv, Inst Microbial & Biochem Technol, 1 Gifford Pinchot Dr, Madison, WI 53726 USA.
EM kehammel@wisc.edu
RI Hammel, Kenneth/G-1890-2011; Houtman, Carl/I-4469-2012; St John,
Franz/J-8970-2016
OI Hammel, Kenneth/0000-0002-2935-5847; St John, Franz/0000-0003-3458-5628
FU Geongsangnam-do Province, Republic of Korea; U.S. Department of Energy,
Los Alamos National Laboratory [DE-AI32-08NA28543]; U.S. Department of
Energy Office of Science, Biological and Environmental Research
[BER-DE-AI02-07ER64480]; U.S. Department of Energy's Office of
Biological and Environmental Research
FX This work was supported by a research fellowship from Geongsangnam-do
Province, Republic of Korea (J.S.R.), by the U.S. Department of Energy,
Los Alamos National Laboratory (grant no. DE-AI32-08NA28543) (K. E. H.),
and by the U.S. Department of Energy Office of Science, Biological and
Environmental Research (grant no. BER-DE-AI02-07ER64480) (K. E. H).; The
proteomic data were processed and archived by the Instrument Development
Laboratory at the Environmental Molecular Sciences Laboratory, a
national scientific user facility sponsored by the U.S. Department of
Energy's Office of Biological and Environmental Research.
NR 60
TC 13
Z9 13
U1 1
U2 29
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
EI 1098-5336
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD NOV
PY 2011
VL 77
IS 22
BP 7933
EP 7941
DI 10.1128/AEM.05496-11
PG 9
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 844PS
UT WOS:000296760200007
PM 21948841
ER
PT J
AU Van Cuyk, S
Deshpande, A
Hollander, A
Duval, N
Ticknor, L
Layshock, J
Gallegos-Graves, L
Omberg, KM
AF Van Cuyk, Sheila
Deshpande, Alina
Hollander, Attelia
Duval, Nathan
Ticknor, Lawrence
Layshock, Julie
Gallegos-Graves, LaVerne
Omberg, Kristin M.
TI Persistence of Bacillus thuringiensis subsp kurstaki in Urban
Environments following Spraying
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID POLYMERASE-CHAIN-REACTION; FIELD PERSISTENCE; AERIAL APPLICATION;
ANTHRAX SPORES; VAR. KURSTAKI; SYSTEM; IDENTIFICATION; INSECTICIDES;
DISPERSAL; SURVIVAL
AB Bacillus thuringiensis subsp. kurstaki is applied extensively in North America to control the gypsy moth, Lymantria dispar. Since B. thuringiensis subsp. kurstaki shares many physical and biological properties with Bacillus anthracis, it is a reasonable surrogate for biodefense studies. A key question in biodefense is how long a biothreat agent will persist in the environment. There is some information in the literature on the persistence of Bacillus anthracis in laboratories and historical testing areas and for Bacillus thuringiensis in agricultural settings, but there is no information on the persistence of Bacillus spp. in the type of environment that would be encountered in a city or on a military installation. Since it is not feasible to release B. anthracis in a developed area, the controlled release of B. thuringiensis subsp. kurstaki for pest control was used to gain insight into the potential persistence of Bacillus spp. in outdoor urban environments. Persistence was evaluated in two locations: Fairfax County, VA, and Seattle, WA. Environmental samples were collected from multiple matrices and evaluated for the presence of viable B. thuringiensis subsp. kurstaki at times ranging from less than 1 day to 4 years after spraying. Real-time PCR and culture were used for analysis. B. thuringiensis subsp. kurstaki was found to persist in urban environments for at least 4 years. It was most frequently detected in soils and less frequently detected in wipes, grass, foliage, and water. The collective results indicate that certain species of Bacillus may persist for years following their dispersal in urban environments.
C1 [Van Cuyk, Sheila; Deshpande, Alina; Hollander, Attelia; Duval, Nathan; Ticknor, Lawrence; Layshock, Julie; Gallegos-Graves, LaVerne; Omberg, Kristin M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Van Cuyk, S (reprint author), Los Alamos Natl Lab, MS F606,POB 1663, Los Alamos, NM 87545 USA.
EM svancuyk@lanl.gov
RI Omberg, Kristin/I-5972-2013;
OI Ticknor, Lawrence/0000-0002-7967-7908
FU Interagency Biological Restoration Demonstration (IBRD); IBRD team; Los
Alamos National Laboratory [DE-AC52-06NA25396]
FX Los Alamos National Laboratory (LANL) acknowledges the Defense Threat
Reduction Agency's Chemical and Biological Defense Applied Technologies
Division, which supported this study under the Interagency Biological
Restoration Demonstration (IBRD). LANL is grateful for the support and
peer review provided by members of the IBRD team. Lisa Hendricks and
Laura Castro (LANL) assisted in environmental sample analysis, and Scott
White (LANL) provided additional support. Jason Gans (LANL) designed the
B. thuringiensis subsp. kurstaki assays. The Washington State and
Virginia Departments of Agriculture and the Fairfax County Department of
Public Works and Environmental Services were essential to the success of
this study. Brad White of the Washington State Department of Agriculture
and his staff were essential to understanding B. thuringiensis subsp.
kurstaki application in the Seattle area. Troy Shaw and Frank Finch in
Fairfax County and Larry Nichols at the State of Virginia Department of
Agriculture and Consumer Services provided critical information and
coordination on spraying in Fairfax County.; This document has been
authored by employees of the Los Alamos National Security, LLC (LANS),
operator of the Los Alamos National Laboratory under contract
DE-AC52-06NA25396 to the U. S. Department of Energy. Neither the U.S.
Government nor LANS makes any warranty, express or implied, or assumes
any liability or responsibility for the use of this information.
Reference herein to any specific commercial product, process, or service
by trade name, trademark, manufacturer, or otherwise, does not
necessarily constitute or imply its endorsement, recommendation, or
favoring by the Los Alamos National Security, LLC, the U.S. Government,
or any agency thereof.
NR 33
TC 17
Z9 17
U1 2
U2 27
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD NOV
PY 2011
VL 77
IS 22
BP 7954
EP 7961
DI 10.1128/AEM.05207-11
PG 8
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 844PS
UT WOS:000296760200009
PM 21926205
ER
PT J
AU Kostka, JE
Prakash, O
Overholt, WA
Green, SJ
Freyer, G
Canion, A
Delgardio, J
Norton, N
Hazen, TC
Huettel, M
AF Kostka, Joel E.
Prakash, Om
Overholt, Will A.
Green, Stefan J.
Freyer, Gina
Canion, Andy
Delgardio, Jonathan
Norton, Nikita
Hazen, Terry C.
Huettel, Markus
TI Hydrocarbon-Degrading Bacteria and the Bacterial Community Response in
Gulf of Mexico Beach Sands Impacted by the Deepwater Horizon Oil Spill
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID MARINE HARBOR SEDIMENTS; SP-NOV.; MICROBIAL-POPULATIONS; PERMEABLE
SEDIMENTS; SEA; DEGRADATION; BIOREMEDIATION; ENVIRONMENT; DIVERSITY;
DYNAMICS
AB A significant portion of oil from the recent Deepwater Horizon (DH) oil spill in the Gulf of Mexico was transported to the shoreline, where it may have severe ecological and economic consequences. The objectives of this study were (i) to identify and characterize predominant oil-degrading taxa that may be used as model hydrocarbon degraders or as microbial indicators of contamination and (ii) to characterize the in situ response of indigenous bacterial communities to oil contamination in beach ecosystems. This study was conducted at municipal Pensacola Beach, FL, where chemical analysis revealed weathered oil petroleum hydrocarbon (C(8) to C(40)) concentrations ranging from 3.1 to 4,500 mg kg(-1) in beach sands. A total of 24 bacterial strains from 14 genera were isolated from oiled beach sands and confirmed as oil-degrading microorganisms. Isolated bacterial strains were primarily Gammaproteobacteria, including representatives of genera with known oil degraders (Alcanivorax, Marinobacter, Pseudomonas, and Acinetobacter). Sequence libraries generated from oiled sands revealed phylotypes that showed high sequence identity (up to 99%) to rRNA gene sequences from the oil-degrading bacterial isolates. The abundance of bacterial SSU rRNA gene sequences was similar to 10-fold higher in oiled (0.44 x 10(7) to 10.2 x 10(7) copies g(-1)) versus clean (0.024 x 10(7) to 1.4 x 10(7) copies g(-1)) sand. Community analysis revealed a distinct response to oil contamination, and SSU rRNA gene abundance derived from the genus Alcanivorax showed the largest increase in relative abundance in contaminated samples. We conclude that oil contamination from the DH spill had a profound impact on the abundance and community composition of indigenous bacteria in Gulf beach sands, and our evidence points to members of the Gammaproteobacteria (Alcanivorax, Marinobacter) and Alphaproteobacteria (Rhodobacteraceae) as key players in oil degradation there.
C1 [Kostka, Joel E.; Prakash, Om; Overholt, Will A.; Green, Stefan J.; Freyer, Gina; Canion, Andy; Delgardio, Jonathan; Norton, Nikita; Huettel, Markus] Florida State Univ, Earth Ocean & Atmospher Sci Dept, Tallahassee, FL 32306 USA.
[Freyer, Gina] Univ Jena, Inst Ecol, Jena, Germany.
[Green, Stefan J.] Univ Illinois, DNA Serv Facil, Chicago, IL USA.
[Hazen, Terry C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Kostka, JE (reprint author), Georgia Inst Technol, Sch Biol, Room 225,Cherry Emerson Bldg,310 Ferst Dr, Atlanta, GA 30332 USA.
EM joel.kostka@biology.gatech.edu
RI Canion, Andy/Q-2397-2015; Hazen, Terry/C-1076-2012;
OI Canion, Andy/0000-0003-1604-7631; Hazen, Terry/0000-0002-2536-9993;
Green, Stefan/0000-0003-2781-359X
FU National Science Foundation [OCE-1044939, OCE-1057417]; Florida
Institute of Oceanography [FIO 4710-1101-00-1]; Northern Gulf Institute
[NG1 191001-306811-03]
FX This research was supported by the National Science Foundation
(OCE-1044939 and OCE-1057417), the Florida Institute of Oceanography
(FIO 4710-1101-00-1), and the Northern Gulf Institute (NG1
191001-306811-03). Quantitative PCR analyses were performed by Cecelia
S. Chau, an employee of the DNA services laboratory.
NR 76
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Z9 222
U1 55
U2 393
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD NOV
PY 2011
VL 77
IS 22
BP 7962
EP 7974
DI 10.1128/AEM.05402-11
PG 13
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 844PS
UT WOS:000296760200010
PM 21948834
ER
PT J
AU Hemme, CL
Fields, MW
He, Q
Deng, Y
Lin, L
Tu, QC
Mouttaki, H
Zhou, AF
Feng, XY
Zuo, Z
Ramsay, BD
He, ZL
Wu, L
Van Nostrand, J
Xu, J
Tang, YJ
Wiegel, J
Phelps, TJ
Zhou, J
AF Hemme, Christopher L.
Fields, Matthew W.
He, Qiang
Deng, Ye
Lin, Lu
Tu, Qichao
Mouttaki, Housna
Zhou, Aifen
Feng, Xueyang
Zuo, Zheng
Ramsay, Bradley D.
He, Zhili
Wu, Liyou
Van Nostrand, Joy
Xu, Jian
Tang, Yinjie J.
Wiegel, Juergen
Phelps, Tommy J.
Zhou, Jizhong
TI Correlation of Genomic and Physiological Traits of Thermoanaerobacter
Species with Biofuel Yields
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID SECONDARY-ALCOHOL DEHYDROGENASE; ETHANOL-PRODUCTION;
CLOSTRIDIUM-THERMOCELLUM; THERMOPHILIC BACTERIUM; SHEWANELLA-ONEIDENSIS;
METABOLIC PATHWAYS; FERMENTATION; CELLULOSE; BIOMASS; STRAIN
AB Thermophilic anaerobic noncellulolytic Thermoanaerobacter species are of great biotechnological importance in cellulosic ethanol production due to their ability to produce high ethanol yields by simultaneous fermentation of hexose and pentose. Understanding the genome structure of these species is critical to improving and implementing these bacteria for possible biotechnological use in consolidated bioprocessing schemes (CBP) for cellulosic ethanol production. Here we describe a comparative genome analysis of two ethanologenic bacteria, Thermoanaerobacter sp. X514 and Thermoanaerobacter pseudethanolicus 39E. Compared to 39E, X514 has several unique key characteristics important to cellulosic biotechnology, including additional alcohol dehydrogenases and xylose transporters, modifications to pentose metabolism, and a complete vitamin B(12) biosynthesis pathway. Experimental results from growth, metabolic flux, and microarray gene expression analyses support genome sequencing-based predictions which help to explain the distinct differences in ethanol production between these strains. The availability of whole-genome sequence and comparative genomic analyses will aid in engineering and optimizing Thermoanaerobacter strains for viable CBP strategies.
C1 [Zhou, Jizhong] Univ Oklahoma, Dept Bot & Microbiol, Inst Environm Genom, Norman, OK 73019 USA.
[Fields, Matthew W.; Ramsay, Bradley D.] Montana State Univ, Dept Microbiol, Bozeman, MT 59717 USA.
[He, Qiang] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN USA.
[He, Qiang] Univ Tennessee, Ctr Environm Biotechnol, Knoxville, TN 37932 USA.
[Lin, Lu; Xu, Jian] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao, Peoples R China.
[Mouttaki, Housna; Tang, Yinjie J.] German Res Ctr Environm & Hlth, Inst Groundwater Ecol, Helmholtz Zentrum Munchen, Munich, Germany.
[Feng, Xueyang; Zuo, Zheng] Washington Univ, Dept Energy Environm & Chem Engn, St Louis, MO USA.
[Wiegel, Juergen] Univ Georgia, Dept Microbiol, Athens, GA 30602 USA.
[Phelps, Tommy J.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Zhou, Jizhong] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Zhou, J (reprint author), Univ Oklahoma, Dept Bot & Microbiol, Inst Environm Genom, Norman, OK 73019 USA.
EM jzhou@ou.edu
RI He, Qiang/G-9061-2011; He, Zhili/C-2879-2012; Xu, Jian/G-8430-2012;
Deng, Ye/A-2571-2013; Feng, Xueyang/G-1295-2015; Van Nostrand,
Joy/F-1740-2016;
OI He, Qiang/0000-0002-7155-6474; Xu, Jian/0000-0002-0548-8477; Van
Nostrand, Joy/0000-0001-9548-6450; Wiegel, Juergen/0000-0002-6343-6464;
?, ?/0000-0002-7584-0632; Feng, Xueyang/0000-0003-4426-5732
FU Oklahoma Bioenergy Center; U.S. Department of Energy Joint BioEnergy
Institute (JBEI); Chinese Academy of Sciences; National Science
Foundation [EPS-0814361]; U.S. Department of Energy's Office of Science,
Biological and Environmental Research; 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 This material is based on work supported by the Oklahoma Bioenergy
Center (J.Z.), the U.S. Department of Energy Joint BioEnergy Institute
(JBEI) (J.Z.), the Chinese Academy of Sciences (J.X.), and the National
Science Foundation EPSCoR program under grant EPS-0814361 (J.Z.). The
genome sequencing work was performed under the auspices of the U.S.
Department of Energy's Office of Science, Biological and Environmental
Research Program and by the University of California, Lawrence Berkeley
National Laboratory, under contract DE-AC02-05CH11231, the Lawrence
Livermore National Laboratory, under contract DE-AC52-07NA27344, and the
Los Alamos National Laboratory, under contract DE-AC02-06NA25396, as
previously described (15).
NR 53
TC 19
Z9 20
U1 2
U2 17
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD NOV
PY 2011
VL 77
IS 22
BP 7998
EP 8008
DI 10.1128/AEM.05677-11
PG 11
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 844PS
UT WOS:000296760200013
PM 21948836
ER
PT J
AU Nawabi, P
Bauer, S
Kyrpides, N
Lykidis, A
AF Nawabi, Parwez
Bauer, Stefan
Kyrpides, Nikos
Lykidis, Athanasios
TI Engineering Escherichia coli for Biodiesel Production Utilizing a
Bacterial Fatty Acid Methyltransferase
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID S-ADENOSYLMETHIONINE SYNTHETASE; CARRIER PROTEIN THIOESTERASE;
ENZYME-CATALYZED REACTIONS; TO-HEAD HYDROCARBON; 3-HYDROXYDECANOIC ACID;
SUBSTRATE-SPECIFICITY; METHIONINE SYNTHESIS; PHAG GENE; BIOSYNTHESIS;
EXPRESSION
AB The production of low-cost biofuels in engineered microorganisms is of great interest due to the continual increase in the world's energy demands. Biodiesel is a renewable fuel that can potentially be produced in microbes cost-effectively. Fatty acid methyl esters (FAMEs) are a common component of biodiesel and can be synthesized from either triacylglycerol or free fatty acids (FFAs). Here we report the identification of a novel bacterial fatty acid methyltransferase (FAMT) that catalyzes the formation of FAMEs and 3-hydroxyl fatty acid methyl esters (3-OH-FAMEs) from the respective free acids and S-adenosylmethionine (AdoMet). FAMT exhibits a higher specificity toward 3-hydroxy free fatty acids (3-OH-FFAs) than FFAs, synthesizing 3-hydroxy fatty acid methyl esters (3-OH-FAMEs) in vivo. We have also identified bacterial members of the fatty acyl-acyl carrier protein (ACP) thioesterase (FAT) enzyme family with distinct acyl chain specificities. These bacterial FATs exhibit increased specificity toward 3-hydroxyacyl-ACP, generating 3-OH-FFAs, which can subsequently be utilized by FAMTs to produce 3-OH-FAMEs. PhaG (3-hydroxyacyl ACP: coenzyme A [CoA] transacylase) constitutes an alternative route to 3-OH-FFA synthesis; the coexpression of PhaG with FAMT led to the highest level of accumulation of 3-OH-FAMEs and FAMEs. The availability of AdoMet, the second substrate for FAMT, is an important factor regulating the amount of methyl esters produced by bacterial cells. Our results indicate that the deletion of the global methionine regulator metJ and the overexpression of methionine adenosyltransferase result in increased methyl ester synthesis.
C1 [Nawabi, Parwez; Kyrpides, Nikos; Lykidis, Athanasios] Joint Genome Inst, Dept Energy, Walnut Creek, CA 94598 USA.
[Nawabi, Parwez; Bauer, Stefan; Kyrpides, Nikos; Lykidis, Athanasios] Univ Calif Berkeley, Energy Biosci Inst, Berkeley, CA 94720 USA.
RP Nawabi, P (reprint author), DOE Joint Genome Inst, 2800 Mitchell Dr, Walnut Creek, CA 94598 USA.
EM pnawabi@lbl.gov; lykidis71@yahoo.com
RI Kyrpides, Nikos/A-6305-2014
OI Kyrpides, Nikos/0000-0002-6131-0462
FU Energy Bioscience Institute; Office of Science of the U.S. Department of
Energy [DE-AC02-05CH112]
FX This work was funded by a grant from the Energy Bioscience Institute to
A. L. and by the Office of Science of the U.S. Department of Energy
under contract no. DE-AC02-05CH112.
NR 40
TC 41
Z9 43
U1 3
U2 35
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD NOV
PY 2011
VL 77
IS 22
BP 8052
EP 8061
DI 10.1128/AEM.05046-11
PG 10
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 844PS
UT WOS:000296760200019
PM 21926202
ER
PT J
AU Lennen, RM
Kruziki, MA
Kumar, K
Zinkel, RA
Burnum, KE
Lipton, MS
Hoover, SW
Ranatunga, DR
Wittkopp, TM
Marner, WD
Pfleger, BF
AF Lennen, Rebecca M.
Kruziki, Max A.
Kumar, Kritika
Zinkel, Robert A.
Burnum, Kristin E.
Lipton, Mary S.
Hoover, Spencer W.
Ranatunga, Don R.
Wittkopp, Tyler M.
Marner, Wesley D., II
Pfleger, Brian F.
TI Membrane Stresses Induced by Overproduction of Free Fatty Acids in
Escherichia coli
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID PHAGE-SHOCK-PROTEIN; ORGANIC-SOLVENT TOLERANCE; ACYL CARRIER PROTEIN;
TRANSCRIPTIONAL REGULATION; INHIBITORY-ACTION; EFFLUX PUMP; EXPRESSION;
BIOSYNTHESIS; GENES; MARA
AB Microbially produced fatty acids are potential precursors to high-energy-density biofuels, including alkanes and alkyl ethyl esters, by either catalytic conversion of free fatty acids (FFAs) or enzymatic conversion of acyl-acyl carrier protein or acyl-coenzyme A intermediates. Metabolic engineering efforts aimed at overproducing FFAs in Escherichia coli have achieved less than 30% of the maximum theoretical yield on the supplied carbon source. In this work, the viability, morphology, transcript levels, and protein levels of a strain of E. coli that overproduces medium-chain-length FFAs was compared to an engineered control strain. By early stationary phase, an 85% reduction in viable cell counts and exacerbated loss of inner membrane integrity were observed in the FFA-overproducing strain. These effects were enhanced in strains endogenously producing FFAs compared to strains exposed to exogenously fed FFAs. Under two sets of cultivation conditions, long-chain unsaturated fatty acid content greatly increased, and the expression of genes and proteins required for unsaturated fatty acid biosynthesis were significantly decreased. Membrane stresses were further implicated by increased expression of genes and proteins of the phage shock response, the MarA/Rob/SoxS regulon, and the nuo and cyo operons of aerobic respiration. Gene deletion studies confirmed the importance of the phage shock proteins and Rob for maintaining cell viability; however, little to no change in FFA titer was observed after 24 h of cultivation. The results of this study serve as a baseline for future targeted attempts to improve FFA yields and titers in E. coli.
C1 [Lennen, Rebecca M.; Kruziki, Max A.; Kumar, Kritika; Pfleger, Brian F.] Univ Wisconsin Madison, Dept Chem & Biol Engn, Madison, WI 53706 USA.
[Lennen, Rebecca M.; Zinkel, Robert A.; Burnum, Kristin E.; Lipton, Mary S.; Hoover, Spencer W.; Ranatunga, Don R.; Wittkopp, Tyler M.; Marner, Wesley D., II; Pfleger, Brian F.] Univ Wisconsin Madison, US Dept Energy, Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA.
[Zinkel, Robert A.] Univ Wisconsin, Ctr Biotechnol, Madison, WI 53706 USA.
[Burnum, Kristin E.; Lipton, Mary S.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99353 USA.
RP Pfleger, BF (reprint author), Univ Wisconsin Madison, Dept Chem & Biol Engn, 3629 Engn Hall,1415 Engn Dr, Madison, WI 53706 USA.
EM pfleger@engr.wisc.edu
RI Burnum, Kristin/B-1308-2011
OI Burnum, Kristin/0000-0002-2722-4149
FU DOE Great Lakes Bioenergy Research Center (DOE BER Office of Sciences)
[DE-FC02-07ER64494]; University of Wisconsin-Madison Graduate School;
NIH; Department of Chemical and Biological Engineering; Khorana Program
for Scholars
FX This work was funded by the DOE Great Lakes Bioenergy Research Center
(DOE BER Office of Sciences DE-FC02-07ER64494) and startup funds from
the University of Wisconsin-Madison Graduate School. R.M.L. was
supported as a trainee in the Chemistry-Biology Interface Training
Program (NIH) and by the Department of Chemical and Biological
Engineering Dahlke-Hougen Fellowship. K.K. was supported by the Khorana
Program for Scholars.
NR 89
TC 53
Z9 53
U1 1
U2 57
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD NOV
PY 2011
VL 77
IS 22
BP 8114
EP 8128
DI 10.1128/AEM.05421-11
PG 15
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 844PS
UT WOS:000296760200026
PM 21948837
ER
PT J
AU Akob, DM
Kerkhof, L
Kusel, K
Watson, DB
Palumbo, AV
Kostka, JE
AF Akob, Denise M.
Kerkhof, Lee
Kuesel, Kirsten
Watson, David B.
Palumbo, Anthony V.
Kostka, Joel E.
TI Linking Specific Heterotrophic Bacterial Populations to Bioreduction of
Uranium and Nitrate in Contaminated Subsurface Sediments by Using Stable
Isotope Probing
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID SCALE PHYSICAL MODELS; MICROBIAL COMMUNITIES; U(VI) REDUCTION;
DENITRIFYING BACTERIA; REDUCING CONDITIONS; U(IV) OXIDATION; AQUIFER;
BIOREMEDIATION; BIOSTIMULATION; DIVERSITY
AB Shifts in terminal electron-accepting processes during biostimulation of uranium-contaminated sediments were linked to the composition of stimulated microbial populations using DNA-based stable isotope probing. Nitrate reduction preceded U(VI) and Fe(III) reduction in [(13)C]ethanol-amended microcosms. The predominant, active denitrifying microbial groups were identified as members of the Betaproteobacteria, whereas Actinobacteria dominated under metal-reducing conditions.
C1 [Akob, Denise M.; Kostka, Joel E.] Florida State Univ, Tallahassee, FL 32306 USA.
[Kerkhof, Lee] Rutgers State Univ, Inst Marine & Coastal Sci, New Brunswick, NJ 08901 USA.
[Kuesel, Kirsten] Univ Jena, Inst Ecol, D-07743 Jena, Germany.
[Watson, David B.; Palumbo, Anthony V.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Kostka, JE (reprint author), Georgia Inst Technol, Sch Biol, 310 Ferst Dr, Atlanta, GA 30332 USA.
EM joel.kostka@biology.gatech.edu
RI Palumbo, Anthony/A-4764-2011; Akob, Denise/D-9478-2013; Watson,
David/C-3256-2016;
OI Palumbo, Anthony/0000-0002-1102-3975; Watson, David/0000-0002-4972-4136;
Akob, Denise/0000-0003-1534-3025
FU Office of Science (BER), DOE [DE-FG02-07ER64373]; Integrated Field
Research Challenge at Oak Ridge; Environmental Sciences Division, ORNL,
under DOE [DE-AC05-00OR22725]; Marie-Curie Postdoctoral Research
Fellowship
FX This research was supported by the Office of Science (BER), DOE grant
no. DE-FG02-07ER64373, and by the Integrated Field Research Challenge at
Oak Ridge, operated by the Environmental Sciences Division, ORNL, under
DOE contract no. DE-AC05-00OR22725. D.M.A. was supported by a
Marie-Curie Postdoctoral Research Fellowship during preparation of the
manuscript.
NR 47
TC 7
Z9 7
U1 4
U2 21
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD NOV
PY 2011
VL 77
IS 22
BP 8197
EP 8200
DI 10.1128/AEM.05247-11
PG 4
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 844PS
UT WOS:000296760200038
PM 21948831
ER
PT J
AU Belkov, SA
Kochemasov, GG
Lyubynskaya, TE
Maslov, NV
Nuzhny, AS
Da Silva, LB
Rubenchik, A
AF Belkov, S. A.
Kochemasov, G. G.
Lyubynskaya, T. E.
Maslov, N. V.
Nuzhny, A. S.
Da Silva, L. B.
Rubenchik, A.
TI Optical spectra analysis for breast cancer diagnostics
SO APPLIED PHYSICS B-LASERS AND OPTICS
LA English
DT Article; Proceedings Paper
CT International Conference on Advanced Laser Technologies (ALT10)
CY SEP 11-16, 2010
CL Egmond aan Zee, NETHERLANDS
ID IN-VIVO; SPECTROSCOPY; SCATTERING; REFLECTANCE
AB Minimally invasive probe and optical biopsy system based on optical spectra recording and analysis seem to be a promising tool for early diagnostics of breast cancer. Light scattering and absorption spectra are generated continuously as far as the needle-like probe with one emitting and several collecting optical fibers penetrates through the tissues toward to the suspicious area. That allows analyzing not only the state of local site, but also the structure of tissues along the needle trace. The suggested method has the advantages of automated on-line diagnosing and minimal tissue destruction and in parallel with the conventional diagnostic procedures provides the ground for decision-making.
165 medical trials were completed in Nizhny Novgorod Regional Oncology Centre, Russia. Independent diagnoses were the results of fine biopsy and histology.
Application of wavelet expansion and clasterization techniques for spectra analysis revealed several main spectral types for malignant and benign tumors. Automatic classification algorithm demonstrated specificity similar to 90% and sensitivity similar to 91%.
Large amount of information, fuzziness in criteria and data noisiness make neural networks to be an attractive analytic tool. The model based on three-layer perceptron was tested over the sample of 29 'cancer' and 29 'non-cancer' cases and demonstrated total separation.
C1 [Belkov, S. A.; Kochemasov, G. G.; Lyubynskaya, T. E.; Maslov, N. V.] Russian Fed Nucl Ctr VNIIEF, Sarov 607200, Nizhny Novgorod, Russia.
[Nuzhny, A. S.] Russian Acad Sci, Nucl Safety Inst, Moscow 115191, Russia.
[Da Silva, L. B.] BioTelligent Inc, Livermore, CA 94551 USA.
[Rubenchik, A.] LLNL, Livermore, CA 94551 USA.
RP Lyubynskaya, TE (reprint author), Russian Fed Nucl Ctr VNIIEF, 37 Prospekt Mira, Sarov 607200, Nizhny Novgorod, Russia.
EM tlyubyn@gmail.com
FU US Department of Energy [LLNL-T2-0242-RU]; International Science and
Technology Center [3075p]
FX This work was supported by funding from GIPP (Global Initiatives for
Proliferation Prevention) Program of US Department of Energy under the
contract LLNL-T2-0242-RU and the Project #3075p of International Science
and Technology Center.
NR 13
TC 0
Z9 0
U1 0
U2 6
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0946-2171
EI 1432-0649
J9 APPL PHYS B-LASERS O
JI Appl. Phys. B-Lasers Opt.
PD NOV
PY 2011
VL 105
IS 3
BP 641
EP 648
DI 10.1007/s00340-011-4637-6
PG 8
WC Optics; Physics, Applied
SC Optics; Physics
GA 844WC
UT WOS:000296780300023
ER
PT J
AU Wright, AM
Beres, SB
Consamus, EN
Long, SW
Flores, AR
Barrios, R
Richter, GS
Oh, SY
Garufi, G
Maier, H
Drews, AL
Stockbauer, KE
Cernoch, P
Schneewind, O
Olsen, RJ
Musser, JM
AF Wright, Angela M.
Beres, Stephen B.
Consamus, Erin N.
Long, S. Wesley
Flores, Anthony R.
Barrios, Roberto
Richter, G. Stefan
Oh, So-Young
Garufi, Gabriella
Maier, Hannah
Drews, Ashley L.
Stockbauer, Kathryn E.
Cernoch, Patricia
Schneewind, Olaf
Olsen, Randall J.
Musser, James M.
TI Rapidly Progressive, Fatal, Inhalation Anthrax-like Infection in a Human
Case Report, Pathogen Genome Sequencing, Pathology, and Coordinated
Response
SO ARCHIVES OF PATHOLOGY & LABORATORY MEDICINE
LA English
DT Article
ID BACILLUS-CEREUS G9241; UNITED-STATES; TOXIN GENES; PNEUMONIA;
THURINGIENSIS; STRAINS; POLYSACCHARIDES; IDENTIFICATION; DIVERSITY;
OUTBREAK
AB Context.-Ten years ago a bioterrorism event involving Bacillus anthracis spores captured the nation's interest, stimulated extensive new research on this pathogen, and heightened concern about illegitimate release of infectious agents. Sporadic reports have described rare, fulminant, and sometimes fatal cases of pneumonia in humans and nonhuman primates caused by strains of Bacillus cereus, a species closely related to Bacillus anthracis.
Objectives.-To describe and investigate a case of rapidly progressive, fatal, anthrax-like pneumonia and the overwhelming infection caused by a Bacillus species of uncertain provenance in a patient residing in rural Texas.
Design.-We characterized the genome of the causative strain within days of its recovery from antemortem cultures using next-generation sequencing and performed immunohistochemistry on tissues obtained at autopsy with antibodies directed against virulence proteins of B anthracis and B cereus.
Results.-We discovered that the infection was caused by a previously unknown strain of B cereus that was closely related to, but genetically distinct from, B anthracis. The strain contains a plasmid similar to pXO1, a genetic element encoding anthrax toxin and other known virulence factors. Immunohistochemistry demonstrated that several homologs of B anthracis virulence proteins were made in infected tissues, likely contributing to the patient's death.
Conclusions.-Rapid genome sequence analysis permitted us to genetically define this strain, rule out the likelihood of bioterrorism, and contribute effectively to the institutional response to this event. Our experience strongly reinforced the critical value of deploying a well-integrated, anatomic, clinical, and genomic strategy to respond rapidly to a potential emerging, infectious threat to public health. (Arch Pathol Lab Med. 2011;135:1447-1459; doi:10.5858/arpa.2011-0362-SA)
C1 [Wright, Angela M.; Beres, Stephen B.; Consamus, Erin N.; Long, S. Wesley; Flores, Anthony R.; Barrios, Roberto; Stockbauer, Kathryn E.; Cernoch, Patricia; Olsen, Randall J.; Musser, James M.] Methodist Hosp Syst, Dept Pathol & Lab Med, Houston, TX 77030 USA.
[Wright, Angela M.; Beres, Stephen B.; Consamus, Erin N.; Long, S. Wesley; Flores, Anthony R.; Barrios, Roberto; Stockbauer, Kathryn E.; Cernoch, Patricia; Olsen, Randall J.; Musser, James M.] Methodist Hosp, Res Inst, Ctr Mol & Translat Human Infect Dis Res, Houston, TX 77030 USA.
[Flores, Anthony R.] Texas Childrens Hosp, Dept Pediat, Infect Dis Sect, Houston, TX 77030 USA.
[Richter, G. Stefan; Oh, So-Young; Garufi, Gabriella; Maier, Hannah; Schneewind, Olaf] Univ Chicago, Dept Microbiol, Chicago, IL 60637 USA.
[Richter, G. Stefan; Oh, So-Young; Garufi, Gabriella; Maier, Hannah; Schneewind, Olaf] Argonne Natl Lab, Howard Taylor Ricketts Lab, Argonne, IL 60439 USA.
[Drews, Ashley L.] Methodist Hosp, Dept Med, Infect Dis Sect, Houston, TX 77030 USA.
RP Musser, JM (reprint author), Methodist Hosp Syst, Dept Pathol & Lab Med, 6565 Fannin St, Houston, TX 77030 USA.
EM JMMusser@tmhs.org
RI Long, S. Wesley/A-9651-2008
OI Long, S. Wesley/0000-0003-3043-5307
FU NIAID NIH HHS [R01 AI069227]
NR 45
TC 23
Z9 23
U1 1
U2 5
PU COLLEGE AMER PATHOLOGISTS
PI NORTHFIELD
PA C/O KIMBERLY GACKI, 325 WAUKEGAN RD, NORTHFIELD, IL 60093-2750 USA
SN 0003-9985
J9 ARCH PATHOL LAB MED
JI Arch. Pathol. Lab. Med.
PD NOV
PY 2011
VL 135
IS 11
BP 1447
EP 1459
DI 10.5858/arpa.2011-0362-SA
PG 13
WC Medical Laboratory Technology; Medicine, Research & Experimental;
Pathology
SC Medical Laboratory Technology; Research & Experimental Medicine;
Pathology
GA 847KT
UT WOS:000296972500015
PM 21882964
ER
PT J
AU Wang, LZ
Macri, LM
Krisciunas, K
Wang, LF
Ashley, MCB
Cui, XQ
Feng, LL
Gong, XF
Lawrence, JS
Liu, Q
Luong-Van, D
Pennypacker, CR
Shang, ZH
Storey, JWV
Yang, HG
Yang, J
Yuan, XY
York, DG
Zhou, X
Zhu, ZX
Zhu, ZH
AF Wang, Lingzhi
Macri, Lucas M.
Krisciunas, Kevin
Wang, Lifan
Ashley, Michael C. B.
Cui, Xiangqun
Feng, Long-Long
Gong, Xuefei
Lawrence, Jon S.
Liu, Qiang
Luong-Van, Daniel
Pennypacker, Carl R.
Shang, Zhaohui
Storey, John W. V.
Yang, Huigen
Yang, Ji
Yuan, Xiangyan
York, Donald G.
Zhou, Xu
Zhu, Zhenxi
Zhu, Zonghong
TI PHOTOMETRY OF VARIABLE STARS FROM DOME A, ANTARCTICA
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE site testing; stars: variables: general
ID RR-LYRAE STARS; SKY AUTOMATED SURVEY; GAMMA DORADUS STARS; ECLIPSING
BINARIES; FREQUENCY-ANALYSIS; BOUNDARY-LAYER; SPACED DATA; SOUTH-POLE;
CATALOG; BRIGHTNESS
AB Dome A on the Antarctic plateau is likely one of the best observing sites on Earth thanks to the excellent atmospheric conditions present at the site during the long polar winter night. We present high-cadence time-series aperture photometry of 10,000 stars with i < 14.5 mag located in a 23 deg(2) region centered on the south celestial pole. The photometry was obtained with one of the CSTAR telescopes during 128 days of the 2008 Antarctic winter. We used this photometric data set to derive site statistics for Dome A and to search for variable stars. Thanks to the nearly uninterrupted synoptic coverage, we found six times as many variables as previous surveys with similar magnitude limits. We detected 157 variable stars, of which 55% were unclassified, 27% were likely binaries, and 17% were likely pulsating stars. The latter category includes delta Scuti, gamma Doradus, and RR Lyrae variables. One variable may be a transiting exoplanet.
C1 [Wang, Lingzhi; Zhu, Zonghong] Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China.
[Wang, Lingzhi; Macri, Lucas M.; Krisciunas, Kevin; Wang, Lifan] Texas A&M Univ, Mitchell Inst Fundamental Phys & Astron, Dept Phys & Astron, College Stn, TX 77843 USA.
[Wang, Lifan; Feng, Long-Long; Zhu, Zhenxi] Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China.
[Ashley, Michael C. B.; Lawrence, Jon S.; Luong-Van, Daniel; Storey, John W. V.] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia.
[Cui, Xiangqun; Gong, Xuefei; Yuan, Xiangyan] Nanjing Inst Astron Opt & Technol, Nanjing 210042, Peoples R China.
[Lawrence, Jon S.] Australian Astron Observ, Coonabarabran, NSW 1710, Australia.
[Liu, Qiang; Zhou, Xu] Chinese Acad Sci, Natl Astron Observ China, Beijing 100012, Peoples R China.
[Pennypacker, Carl R.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Astrophys, Berkeley, CA 94720 USA.
[Shang, Zhaohui] Tianjin Normal Univ, Dept Phys, Tianjin 300074, Peoples R China.
[Yang, Huigen] Polar Res Inst China, Shanghai 200136, Peoples R China.
[Yuan, Xiangyan; Zhou, Xu] Chinese Ctr Antarctic Astron, Nanjing 210008, Peoples R China.
[York, Donald G.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
[York, Donald G.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
RP Wang, LZ (reprint author), Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China.
OI Macri, Lucas/0000-0002-1775-4859
FU China Scholarship Council; National Natural Science Foundation of China
[10825313, 11073005]; Ministry of Science and Technology [2007CB815401];
Excellent Doctoral Dissertation of Beijing Normal University; Department
of Physics & Astronomy at Texas AM University; Mitchell-Munnerlyn-Heep
Chair for tenure-track faculty; NSFC-CAS [10778706]; CAS [KJCX2-YW-T08];
Australian Research Council; Australian Antarctic Division
FX Lingzhi Wang acknowledges financial support by the China Scholarship
Council and the National Natural Science Foundation of China under the
Distinguished Young Scholar Grant 10825313 and Grant 11073005, by the
Ministry of Science and Technology National Basic Science Program
(Project 973) under grant number 2007CB815401, and by the Excellent
Doctoral Dissertation of Beijing Normal University Engagement Fund.;
Lucas Macri and Lifan Wang acknowledge support by the Department of
Physics & Astronomy at Texas A&M University through faculty startup
funds and the Mitchell-Munnerlyn-Heep Chair for tenure-track faculty.;
This work was supported by the Chinese PANDA International Polar Year
project, NSFC-CAS joint key program through grant number 10778706, CAS
main direction program through grant number KJCX2-YW-T08. The authors
deeply appreciate the great efforts made by the 24-27th Dome A
expedition teams who provided invaluable assistance to the astronomers
that set up and maintained the CSTAR telescope and the PLATO system.
PLATO was supported by the Australian Research Council and the
Australian Antarctic Division. Iridium communications were provided by
the US National Science Foundation and the US Antarctic Program.
NR 54
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD NOV
PY 2011
VL 142
IS 5
AR 155
DI 10.1088/0004-6256/142/5/155
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844VH
UT WOS:000296777000012
ER
PT J
AU Arnett, WD
Meakin, C
AF Arnett, W. David
Meakin, Casey
TI TURBULENT CELLS IN STARS: FLUCTUATIONS IN KINETIC ENERGY AND LUMINOSITY
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE stars: individual (Betelgeuse); stars: oscillations
ID LONG SECONDARY PERIODS; RENORMALIZATION-GROUP ANALYSIS; COMPRESSIBLE
TURBULENCE; STELLAR CONVECTION; MODEL; SUPERGIANTS; SIMULATIONS;
VARIABILITY
AB Three-dimensional (3D) hydrodynamic simulations of shell oxygen burning exhibit bursty, recurrent fluctuations in turbulent kinetic energy. These are shown to be due to a general instability of the convective cell, requiring only a localized source of heating or cooling. Such fluctuations are shown to be suppressed in simulations of stellar evolution which use the mixing-length theory. Quantitatively similar behavior occurs in the model of a convective roll (cell) of Lorenz, which is known to have a strange attractor that gives rise to chaotic fluctuations in time of velocity and, as we show, luminosity. Study of simulations suggests that the behavior of a Lorenz convective roll may resemble that of a cell in convective flow. We examine some implications of this simplest approximation and suggest paths for improvement. Using the Lorenz model as representative of a convective cell, a multiple-cell model of a convective layer gives total luminosity fluctuations which are suggestive of irregular variables (red giants and supergiants), and of the long secondary period feature in semiregular asymptotic giant branch variables. This "tau-mechanism" is a new source for stellar variability, which is inherently nonlinear (unseen in linear stability analysis), and one closely related to intermittency in turbulence. It was already implicit in the 3D global simulations of Woodward et al. This fluctuating behavior is seen in extended two-dimensional simulations of CNeOSi burning shells, and may cause instability which leads to eruptions in progenitors of core-collapse supernovae prior to collapse.
C1 [Arnett, W. David; Meakin, Casey] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA.
[Arnett, W. David] ICRAnet, Nice, Italy.
[Meakin, Casey] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA.
RP Arnett, WD (reprint author), Univ Arizona, Steward Observ, Tucson, AZ 85721 USA.
EM wdarnett@gmail.com; casey.meakin@gmail.com
FU NSF [0708871]; NASA [NNX08AH19G]; University of Michigan
FX This work was supported in part by NSF grant 0708871 and NASA grant
NNX08AH19G at the University of Arizona, and by the CLEAR sub-contract
from the University of Michigan. We wish to thank Fr. J. Funes (Specalo
Vaticano), Prof. R. Ruffini (ICRAnet), and Prof. J. Lattanzio (Monash),
P. Wood (Australian National University), and the Aspen Center for
Physics for their hospitality, Prof F. Timmes and S. Starrfield for
discussions, R. Stothers for helpful email, and the second anonymous
referee for constructive comments.
NR 59
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD NOV 1
PY 2011
VL 741
IS 1
AR 33
DI 10.1088/0004-637X/741/1/33
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844TA
UT WOS:000296769000033
ER
PT J
AU Bianco, FB
Howell, DA
Sullivan, M
Conley, A
Kasen, D
Gonzalez-Gaitan, S
Guy, J
Astier, P
Balland, C
Carlberg, RG
Fouchez, D
Fourmanoit, N
Hardin, D
Hook, I
Lidman, C
Pain, R
Palanque-Delabrouille, N
Perlmutter, S
Perrett, KM
Pritchet, CJ
Regnault, N
Rich, J
Ruhlmann-Kleider, V
AF Bianco, F. B.
Howell, D. A.
Sullivan, M.
Conley, A.
Kasen, D.
Gonzalez-Gaitan, S.
Guy, J.
Astier, P.
Balland, C.
Carlberg, R. G.
Fouchez, D.
Fourmanoit, N.
Hardin, D.
Hook, I.
Lidman, C.
Pain, R.
Palanque-Delabrouille, N.
Perlmutter, S.
Perrett, K. M.
Pritchet, C. J.
Regnault, N.
Rich, J.
Ruhlmann-Kleider, V.
TI CONSTRAINING TYPE Ia SUPERNOVAE PROGENITORS FROM THREE YEARS OF
SUPERNOVA LEGACY SURVEY DATA
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE methods: data analysis; supernovae: general; white dwarfs
ID DIGITAL SKY SURVEY; LIGHT CURVES; COSMOLOGICAL PARAMETERS;
K-CORRECTIONS; DARK ENERGY; RISE-TIME; DISPERSION; BINARIES; SPECTRA;
SINGLE
AB While it is generally accepted that Type Ia supernovae are the result of the explosion of a carbon-oxygen white dwarf accreting mass in a binary system, the details of their genesis still elude us, and the nature of the binary companion is uncertain. Kasen points out that the presence of a non-degenerate companion in the progenitor system could leave an observable trace: a flux excess in the early rise portion of the light curve caused by the ejecta impact with the companion itself. This excess would be observable only under favorable viewing angles, and its intensity depends on the nature of the companion. We searched for the signature of a non-degenerate companion in three years of Supernova Legacy Survey data by generating synthetic light curves accounting for the effects of shocking and comparing true and synthetic time series with Kolmogorov-Smirnov tests. Our most constraining result comes from noting that the shocking effect is more prominent in the rest-frame B than V band: we rule out a contribution from white dwarf-red giant binary systems to Type Ia supernova explosions greater than 10% at the 2 sigma, and greater than 20% at the 3 sigma level.
C1 [Bianco, F. B.; Howell, D. A.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
[Bianco, F. B.; Howell, D. A.] Las Cumbres Observ Global Telescope Network Inc, Santa Barbara, CA 93117 USA.
[Sullivan, M.; Hook, I.] Univ Oxford, Dept Phys Astrophys, Oxford OX1 3RH, England.
[Conley, A.] Univ Colorado, Ctr Astrophys & Space Astron, Boulder, CO 80309 USA.
[Kasen, D.; Perlmutter, S.] Univ Calif Los Angeles, Dept Phys, Los Angeles, CA 90095 USA.
[Kasen, D.; Perlmutter, S.] Univ Calif Los Angeles, Dept Astron, Los Angeles, CA 90095 USA.
[Gonzalez-Gaitan, S.; Carlberg, R. G.; Perrett, K. M.] Univ Toronto, Dept Astron & Astrophys, Toronto, ON M5S 3H4, Canada.
[Guy, J.; Astier, P.; Balland, C.; Fourmanoit, N.; Hardin, D.; Pain, R.; Regnault, N.] Univ Paris 07, CNRS, LPNHE, Univ Paris 06,CNRS IN2P3, F-75252 Paris 05, France.
[Fouchez, D.] CNRS IN2P3, CPPM, F-13298 Marseille 9, France.
[Fouchez, D.] Univ Aix Marseille 1, F-13298 Marseille 9, France.
[Hook, I.] INAF Osservatorio Astron Roma, I-00040 Monte Porzio Catone, RM, Italy.
[Lidman, C.] Australian Astron Observ, Epping, NSW 1710, Australia.
[Palanque-Delabrouille, N.; Rich, J.; Ruhlmann-Kleider, V.] CEA, Ctr Saclay, Irfu SPP, F-91191 Gif Sur Yvette, France.
[Perlmutter, S.] LBNL, Berkeley, CA 94720 USA.
[Perrett, K. M.] DRDC Ottawa, Ottawa, ON K1A 0Z4, Canada.
[Pritchet, C. J.] Univ Victoria, Dept Phys & Astron, Victoria, BC V8T 1M8, Canada.
RP Bianco, FB (reprint author), Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
EM fbianco@lcogt.net
RI Carlberg, Raymond/I-6947-2012; Perlmutter, Saul/I-3505-2015;
OI Carlberg, Raymond/0000-0002-7667-0081; Perlmutter,
Saul/0000-0002-4436-4661; Sullivan, Mark/0000-0001-9053-4820
FU Royal Society; NSERC; CIAR; W. M. Keck Foundation
FX The authors wish to thank Lars Bilstein (KITP) and Rayan Foley (CfA) for
stimulating discussions and insightful comments. The SNLS collaboration
gratefully acknowledges the assistance of Pierre Martin and the CFHT
Queued Service Observations team. Jean-Charles Cuillandre and Kanoa
Withington were also indispensable in making possible real-time data
reduction at CFHT. This paper is based in part on observations obtained
with MegaPrime/MegaCam, a joint project of CFHT and CEA/DAPNIA, at the
Canada-France-Hawaii Telescope (CFHT), which is operated by the National
Research Council (NRC) of Canada, the Institut National des Sciences de
l'Univers of the Centre National de la Recherche Scientifique (CNRS) of
France, and the University of Hawaii. This work is based in part on data
products produced at the Canadian Astronomy Data Centre as part of the
CFHT Legacy Survey, a collaborative project of NRC and CNRS. M. S.
acknowledges support from the Royal Society. Canadian collaboration
members acknowledge support from NSERC and CIAR; French collaboration
members from CNRS/IN2P3, CNRS/INSU, and CEA. Based in part on
observations obtained at the Gemini Observatory, which is operated by
the Association of Universities for Research in Astronomy, Inc., under a
cooperative agreement with the NSF on behalf of the Gemini partnership:
the National Science Foundation (United States), the Science and
Technology Facilities Council (United Kingdom), the National Research
Council (Canada), CONICYT (Chile), the Australian Research Council
(Australia), CNPq (Brazil), and CONICET (Argentina). Based on data from
Gemini program IDs GS-2003B-Q-8, GN-2003B-Q-9, GS-2004A-Q-11,
GN-2004A-Q-19, GS-2004B- Q-31, GN-2004B-Q-16, GS-2005A-Q-11, GN-2005A-Q-
11, GS-2005B-Q-6, GN-2005B-Q-7, GN-2006A-Q-7, and GN-2006B-Q-10. Based
in part on observations made with ESO Telescopes at the Paranal
Observatory under program IDs 171.A-0486 and 176.A-0589. Some of the
data presented herein were obtained at the W. M. Keck Observatory, which
is operated as a scientific partnership among the California Institute
of Technology, the University of California, and the National
Aeronautics and Space Administration. The Observatory was made possible
by the generous financial support of the W. M. Keck Foundation.
NR 45
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U1 0
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD NOV 1
PY 2011
VL 741
IS 1
AR 20
DI 10.1088/0004-637X/741/1/20
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844TA
UT WOS:000296769000020
ER
PT J
AU Burgess, JM
Preece, RD
Baring, MG
Briggs, MS
Connaughton, V
Guiriec, S
Paciesas, WS
Meegan, CA
Bhat, PN
Bissaldi, E
Chaplin, V
Diehl, R
Fishman, GJ
Fitzpatrick, G
Foley, S
Gibby, M
Giles, M
Goldstein, A
Greiner, J
Gruber, D
van der Horst, AJ
von Kienlin, A
Kippen, M
Kouveliotou, C
McBreen, S
Rau, A
Tierney, D
Wilson-Hodge, C
AF Burgess, J. Michael
Preece, Robert D.
Baring, Matthew G.
Briggs, Michael S.
Connaughton, Valerie
Guiriec, Sylvain
Paciesas, William S.
Meegan, Charles A.
Bhat, P. N.
Bissaldi, Elisabetta
Chaplin, Vandiver
Diehl, Roland
Fishman, Gerald J.
Fitzpatrick, Gerard
Foley, Suzanne
Gibby, Melissa
Giles, Misty
Goldstein, Adam
Greiner, Jochen
Gruber, David
van der Horst, Alexander J.
von Kienlin, Andreas
Kippen, Marc
Kouveliotou, Chryssa
McBreen, Sheila
Rau, Arne
Tierney, Dave
Wilson-Hodge, Colleen
TI CONSTRAINTS ON THE SYNCHROTRON SHOCK MODEL FOR THE FERMI GRB 090820A
OBSERVED BY GAMMA-RAY BURST MONITOR
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE acceleration of particles; gamma-ray burst: individual (GRB 090820A);
gamma rays: stars; methods: data analysis; radiation mechanisms:
non-thermal; radiation mechanisms: thermal
ID PROMPT EMISSION; SPECTRA; ACCELERATION
AB Discerning the radiative dissipation mechanism for prompt emission in gamma-ray bursts (GRBs) requires detailed spectroscopic modeling that straddles the vF(v) peak in the 100 keV-1 MeV range. Historically, empirical fits such as the popular Band function have been employed with considerable success in interpreting the observations. While extrapolations of the Band parameters can provide some physical insight into the emission mechanisms responsible for GRBs, these inferences do not provide a unique way of discerning between models. By fitting physical models directly, this degeneracy can be broken, eliminating the need for empirical functions; our analysis here offers a first step in this direction. One of the oldest, and leading, theoretical ideas for the production of the prompt signal is the synchrotron shock model. Here we explore the applicability of this model to a bright Fermi gamma-ray burst monitor (GBM) burst with a simple temporal structure, GRB 090820A. Our investigation implements, for the first time, thermal and non-thermal synchrotron emissivities in the RMFIT forward-folding spectral analysis software often used in GBM burst studies. We find that these synchrotron emissivities, together with a blackbody shape, provide at least as good a match to the data as the Band GRB spectral fitting function. This success is achieved in both time-integrated and time-resolved spectral fits.
C1 [Burgess, J. Michael; Preece, Robert D.; Briggs, Michael S.; Connaughton, Valerie; Guiriec, Sylvain; Paciesas, William S.; Bhat, P. N.; Chaplin, Vandiver; Goldstein, Adam] Univ Alabama, Dept Phys, Huntsville, AL 35899 USA.
[Baring, Matthew G.] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA.
[Meegan, Charles A.; van der Horst, Alexander J.] Univ Space Res Assoc, Dept Phys, Huntsville, AL 35899 USA.
[Bissaldi, Elisabetta; Chaplin, Vandiver; Diehl, Roland; Greiner, Jochen; Gruber, David; von Kienlin, Andreas; Rau, Arne] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Fishman, Gerald J.; Kouveliotou, Chryssa; Wilson-Hodge, Colleen] NASA, Marshall Space Flight Ctr, Space Sci Off, Huntsville, AL 35812 USA.
[Fitzpatrick, Gerard; Foley, Suzanne; McBreen, Sheila; Tierney, Dave] Univ Coll Dublin, Sch Phys, Dublin 4, Ireland.
[Gibby, Melissa; Giles, Misty] Jacobs Technol Inc, Huntsville, AL USA.
[Kippen, Marc] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Burgess, JM (reprint author), Univ Alabama, Dept Phys, 320 Sparkman Dr, Huntsville, AL 35899 USA.
EM james.m.burgess@nasa.gov; baring@rice.edu
RI Bissaldi, Elisabetta/K-7911-2016;
OI Burgess, James/0000-0003-3345-9515; McBreen, Sheila/0000-0002-1477-618X;
Bissaldi, Elisabetta/0000-0001-9935-8106; Preece,
Robert/0000-0003-1626-7335
FU Alabama Space Grant Consortium through NASA [NNX10AJ80H]; NASA
[NNX09AT80G, NNH07ZDA001-GLAST]
FX We thank the referee for many useful comments that helped clarify the
presentation. J.M.B. thankfully acknowledges the support of the Alabama
Space Grant Consortium through NASA Training Grant NNX10AJ80H. M.G.B. is
grateful for support under NASA's Fermi Guest Investigator program,
Cycle 2, through grant NNX09AT80G. A.J.v.d.H. was supported by NASA
grant NNH07ZDA001-GLAST.
NR 22
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD NOV 1
PY 2011
VL 741
IS 1
AR 24
DI 10.1088/0004-637X/741/1/24
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844TA
UT WOS:000296769000024
ER
PT J
AU Davis, TM
Hui, L
Frieman, JA
Haugbolle, T
Kessler, R
Sinclair, B
Sollerman, J
Bassett, B
Marriner, J
Mortsell, E
Nichol, RC
Richmond, MW
Sako, M
Schneider, DP
Smith, M
AF Davis, Tamara M.
Hui, Lam
Frieman, Joshua A.
Haugbolle, Troels
Kessler, Richard
Sinclair, Benjamin
Sollerman, Jesper
Bassett, Bruce
Marriner, John
Mortsell, Edvard
Nichol, Robert C.
Richmond, Michael W.
Sako, Masao
Schneider, Donald P.
Smith, Mathew
TI THE EFFECT OF PECULIAR VELOCITIES ON SUPERNOVA COSMOLOGY
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE cosmology: observations; supernovae: general
ID DIGITAL SKY SURVEY; PROBE WMAP OBSERVATIONS; BARYON
ACOUSTIC-OSCILLATIONS; HUBBLE-SPACE-TELESCOPE; DARK ENERGY SURVEY; BVRI
LIGHT CURVES; IA SUPERNOVAE; REDSHIFT SURVEY; DATA SETS; DIPOLE
ANISOTROPY
AB We analyze the effect that peculiar velocities have on the cosmological inferences we make using luminosity distance indicators, such as Type Ia supernovae. In particular we study the corrections required to account for (1) our own motion, (2) correlations in galaxy motions, and (3) a possible local under-or overdensity. For all of these effects we present a case study showing the impact on the cosmology derived by the Sloan Digital Sky Survey-II Supernova Survey (SDSS-II SN Survey). Correcting supernova (SN) redshifts for the cosmic microwave background (CMB) dipole slightly overcorrects nearby SNe that share some of our local motion. We show that while neglecting the CMB dipole would cause a shift in the derived equation of state of Delta w similar to 0.04 (at fixed Omega(m)), the additional local-motion correction is currently negligible (Delta w less than or similar to 0.01). We then demonstrate a covariance-matrix approach to statistically account for correlated peculiar velocities. This down-weights nearby SNe and effectively acts as a graduated version of the usual sharp low-redshift cut. Neglecting coherent velocities in the current sample causes a systematic shift of Delta w similar to 0.02. This will therefore have to be considered carefully when future surveys aim for percent-level accuracy and we recommend our statistical approach to down-weighting peculiar velocities as a more robust option than a sharp low-redshift cut.
C1 [Davis, Tamara M.; Sinclair, Benjamin] Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia.
[Davis, Tamara M.] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, DK-2100 Copenhagen O, Denmark.
[Hui, Lam] Columbia Univ, Dept Phys, ISCAP, New York, NY 10027 USA.
[Frieman, Joshua A.; Kessler, Richard] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Frieman, Joshua A.; Kessler, Richard] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
[Frieman, Joshua A.; Marriner, John] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA.
[Sollerman, Jesper] Stockholm Univ, Dept Astron, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.
[Bassett, Bruce] S African Astron Observ, ZA-7935 Observatory, South Africa.
[Bassett, Bruce] African Inst Math Sci, Cape Town, South Africa.
[Mortsell, Edvard] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Nichol, Robert C.] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England.
[Richmond, Michael W.] Rochester Inst Technol, Dept Phys, Rochester, NY 14623 USA.
[Sako, Masao] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA.
[Schneider, Donald P.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Smith, Mathew] Univ Cape Town, Astrophys Cosmol & Grav Ctr, Dept Math & Appl Math, ZA-7701 Rondebosch, South Africa.
RP Davis, TM (reprint author), Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia.
EM tamarad@physics.uq.edu.au
RI Haugbolle, Troels/L-7984-2014; Davis, Tamara/A-4280-2008;
OI Haugbolle, Troels/0000-0002-9422-8684; Sollerman,
Jesper/0000-0003-1546-6615; Davis, Tamara/0000-0002-4213-8783; Bassett,
Bruce/0000-0001-7700-1069
FU Alfred P. Sloan Foundation; National Science Foundation; U.S. Department
of Energy; National Aeronautics and Space Administration; Japanese
Monbukagakusho; Max Planck Society; Higher Education Funding Council for
England; American Museum of Natural History; Astrophysical Institute
Potsdam; University of Basel; University of Cambridge; Case Western
Reserve University; University of Chicago; Drexel University; Fermilab;
Institute for Advanced Study; Japan Participation Group; Johns Hopkins
University; Joint Institute for Nuclear Astrophysics; Kavli Institute
for Particle Astrophysics and Cosmology; Korean Scientist Group; Chinese
Academy of Sciences (LAMOST); Los Alamos National Laboratory; Max-Planck
Institute for Astronomy (MPIA); Max-Planck-Institute for Astrophysics
(MPA); New Mexico State University; Ohio State University; University of
Pittsburgh; University of Portsmouth; Princeton University; United
States Naval Observatory; University of Washington; W. M. Keck
Foundation
FX Funding for the SDSS and SDSS-II has been provided by the Alfred P.
Sloan Foundation, the Participating Institutions, the National Science
Foundation, the U.S. Department of Energy, the National Aeronautics and
Space Administration, the Japanese Monbukagakusho, the Max Planck
Society, and the Higher Education Funding Council for England. The SDSS
Web site is http://www.sdss.org/.; The SDSS is managed by the
Astrophysical Research Consortium for the Participating Institutions.
The Participating Institutions are the American Museum of Natural
History, Astrophysical Institute Potsdam, University of Basel,
University of Cambridge, Case Western Reserve University, University of
Chicago, Drexel University, Fermilab, the Institute for Advanced Study,
the Japan Participation Group, Johns Hopkins University, the Joint
Institute for Nuclear Astrophysics, the Kavli Institute for Particle
Astrophysics and Cosmology, the Korean Scientist Group, the Chinese
Academy of Sciences (LAMOST), Los Alamos National Laboratory, the
Max-Planck Institute for Astronomy (MPIA), the Max-Planck-Institute for
Astrophysics (MPA), New Mexico State University, Ohio State University,
University of Pittsburgh, University of Portsmouth, Princeton
University, the United States Naval Observatory, and the University of
Washington.; This work is based in part on observations made at the
following telescopes. The Hobby-Eberly Telescope (HET) is a joint
project of the University of Texas at Austin, the Pennsylvania State
University, Stanford University, Ludwig-Maximillians-Universitat
Munchen, and Georg-August-Universitat Gottingen. The HET is named in
honor of its principal benefactors, William P. Hobby and Robert E.
Eberly. The Marcario Low-Resolution Spectrograph is named for Mike
Marcario of High Lonesome Optics, who fabricated several optical
elements for the instrument but died before its completion; it is a
joint project of the Hobby-Eberly Telescope partnership and the
Instituto de Astronomia de la Universidad Nacional Autonoma de Mexico.
The Apache Point Observatory 3.5 m telescope is owned and operated by
the Astrophysical Research Consortium. We thank the observatory
director, Suzanne Hawley, and site manager, Bruce Gillespie, for their
support of this project. The Subaru Telescope is operated by the
National Astronomical Observatory of Japan. The William Herschel
Telescope is operated by the Isaac Newton Group on the island of La
Palma in the Spanish Observatorio del Roque de los Muchachos of the
Instituto de Astrofisica de Canarias. The W. M. Keck Observatory is
operated as a scientific partnership among the California Institute of
Technology, the University of California, and the National Aeronautics
and Space Administration. The Observatory was made possible by the
generous financial support of the W. M. Keck Foundation.
NR 82
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PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD NOV 1
PY 2011
VL 741
IS 1
AR 67
DI 10.1088/0004-637X/741/1/67
PG 15
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844TA
UT WOS:000296769000067
ER
PT J
AU Boldyrev, S
Perez, JC
Borovsky, JE
Podesta, JJ
AF Boldyrev, Stanislav
Perez, Jean Carlos
Borovsky, Joseph E.
Podesta, John J.
TI SPECTRAL SCALING LAWS IN MAGNETOHYDRODYNAMIC TURBULENCE SIMULATIONS AND
IN THE SOLAR WIND
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE magnetic fields; magnetohydrodynamics (MHD); methods: statistical;
plasmas; turbulence
ID NUMERICAL SIMULATIONS; WAVES
AB The question is addressed as to what extent incompressible magnetohydrodynamics can describe random magnetic and velocity fluctuations measured in the solar wind. It is demonstrated that distributions of spectral indices for the velocity, magnetic field, and total energy obtained from high-resolution numerical simulations of magnetohydrodynamic turbulence are qualitatively and quantitatively similar to solar wind observations at 1 AU. Both simulations and observations show that in the inertial range the magnetic field spectrum E-b is steeper than the velocity spectrum E-v with E-b greater than or similar to E-v and that the magnitude of the residual energy E-R = E-v - E-b decreases nearly following a k(perpendicular to)(-2) scaling.
C1 [Boldyrev, Stanislav; Perez, Jean Carlos] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
[Perez, Jean Carlos] Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
[Perez, Jean Carlos] Univ New Hampshire, Dept Phys, Durham, NH 03824 USA.
[Borovsky, Joseph E.; Podesta, John J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Borovsky, Joseph E.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
RP Boldyrev, S (reprint author), Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA.
FU US DoE [DE-FG02-07ER54932, DE-SC0003888, DE-SC0001794]; NSF
[PHY-0903872]; NSF Center for magnetic Self-organization in Laboratory
and Astrophysical Plasmas at University of Wisconsin-Madison; Texas
Advanced Computing Center (TACC) at the University of Texas at Austin
under the NSF [TG-PHY080013N]; NASA
FX This work was supported by the US DoE awards DE-FG02-07ER54932,
DE-SC0003888, DE-SC0001794, the NSF grant PHY-0903872, and the NSF
Center for magnetic Self-organization in Laboratory and Astrophysical
Plasmas at University of Wisconsin-Madison. High Performance Computing
resources were provided by the Texas Advanced Computing Center (TACC) at
the University of Texas at Austin under the NSF-Teragrid Project
TG-PHY080013N. Work at Los Alamos was supported by the NASA Solar and
Heliospheric Physics Program and the NSF SHINE Program.
NR 30
TC 49
Z9 49
U1 0
U2 14
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD NOV 1
PY 2011
VL 741
IS 1
AR L19
DI 10.1088/2041-8205/741/1/L19
PG 4
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844NC
UT WOS:000296753000019
ER
PT J
AU Kronberg, PP
Lovelace, RVE
Lapenta, G
Colgate, SA
AF Kronberg, P. P.
Lovelace, R. V. E.
Lapenta, G.
Colgate, S. A.
TI MEASUREMENT OF THE ELECTRIC CURRENT IN A kpc-SCALE JET
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE galaxies: jets; galaxies: magnetic fields; plasmas
ID DOUBLE RADIO-SOURCES; HELICAL MAGNETIC-FIELD; ACCRETION DISKS; POYNTING
JETS; ROTATION; 3C-303; MODEL; COLLIMATION; EXPANSION; 3C-273
AB We present radio emission, polarization, and Faraday rotation maps of the radio jet of the galaxy 3C303. From these data we derive the magnetoplasma and electrodynamic parameters of this 50 kpc long jet. For one component of this jet we obtain for the first time a direct determination of a galactic-scale electric current (similar to 3 x 10(18) A), and its direction-positive away from the active galactic nucleus. Our analysis strongly supports a model where the jet energy flow is mainly electromagnetic.
C1 [Kronberg, P. P.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Kronberg, P. P.] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada.
[Lovelace, R. V. E.] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA.
[Lapenta, G.] Katholieke Univ Leuven, Ctr Plasma Astrophys, Dept Wiskunde, Louvain, Belgium.
RP Kronberg, PP (reprint author), Los Alamos Natl Lab, Div Theoret, T-2,MS B283, Los Alamos, NM 87545 USA.
EM kronberg@lanl.gov; lovelace@astro.cornell.edu;
giovanni.lapenta@kuleuven.be; colgate@lanl.gov
OI Lapenta, Giovanni/0000-0002-3123-4024
FU Natural Sciences and Engineering Research of Canada; NSF; NASA
FX We thank Rick Perley, Robert Reid, Justin Linford, and Greg Taylor for
help and advice with the re-calibrated images, Hui Li for discussion of
current flow in jets, and an anonymous referee for a valuable correction
to our estimate of the jet current. Support is acknowledged from a
Natural Sciences and Engineering Research of Canada Discovery Grant
(P.P.K.) and from NSF and NASA (R.V.E.L.).
NR 22
TC 13
Z9 13
U1 1
U2 12
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD NOV 1
PY 2011
VL 741
IS 1
AR L15
DI 10.1088/2041-8205/741/1/L15
PG 4
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844NC
UT WOS:000296753000015
ER
PT J
AU Moses, E
AF Moses, Edward
TI The National Ignition Facility: an experimental platform for studying
behavior of matter under extreme conditions
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE National Ignition Facility; National Ignition Campaign; Inertial fusion
energy; Inertial confinement fusion; High energy density science; Laser
inertial fusion energy
ID ENERGY
AB The National Ignition Facility (NIF), a 192-beam Nd-glass laser facility capable of producing 1.8 MJ and 500 TW of ultraviolet light, is now operational at Lawrence Livermore National Laboratory (LLNL). As the world's largest and most energetic laser system, NIF serves as the national center for the U.S. Department of Energy (DOE) and National Nuclear Security Administration to achieve thermonuclear burn in the laboratory and to explore the behavior of matter at extreme temperatures and energy densities. By concentrating the energy from all of its 192 extremely energetic laser beams into a mm(3)-sized target, NIF can reach the conditions required to initiate fusion reactions. NIF can also provide access to extreme scientific environments: temperatures about 100 million K, densities of 1,000 g/cm(3), and pressures 100 billion times atmospheric pressure. These conditions have never been created before in a laboratory and exist naturally only in interiors of the planetary and stellar environments as well as in nuclear weapons.
Since August 2009, the NIF team has been conducting experiments in support of the National Ignition Campaign (NIC)-a partnership among LLNL, Los Alamos National Laboratory, General Atomics, the University of Rochester, Sandia National Laboratories, as well as a number of universities and international collaborators. The results from these initial experiments show promise for the relatively near-term achievement of ignition. Capsule implosion experiments at energies up to 1.2 MJ have demonstrated laser energetics, radiation temperatures, and symmetry control that scale to ignition conditions. Of particular importance is the demonstration of peak hohlraum temperatures near 300 eV with overall backscatter less than 10%. Cryogenic target capability and additional diagnostics are being installed in preparation for layered target deuterium-tritium implosions to be conducted later in 2010. Important national security and basic science experiments have also been conducted on NIF. This paper describes the unprecedented experimental capabilities of NIF and the results achieved so far on the path toward ignition, for stockpile stewardship, and the beginning of frontier science experiments. The paper will also address our plans to transition NIF to a national user facility, providing access to NIF for researchers from the DOE laboratories, as well as the national and international academic and fusion energy communities.
C1 Lawrence Livermore Natl Lab, Natl Ignit Facil, Livermore, CA 94551 USA.
RP Moses, E (reprint author), Lawrence Livermore Natl Lab, Natl Ignit Facil, 7000 E Ave, Livermore, CA 94551 USA.
EM moses1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344, LLNL-JRNL-432971]
FX This work performed under the auspices of the U.S. Department of Energy
by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344. LLNL-JRNL-432971.
NR 11
TC 3
Z9 3
U1 0
U2 15
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 3
EP 7
DI 10.1007/s10509-010-0536-2
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800002
ER
PT J
AU Ryutov, DD
AF Ryutov, D. D.
TI Using intense lasers to simulate aspects of accretion discs and outflows
in astrophysics
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE Accretion discs; Laboratory astrophysics; Turbulence
ID TRANSPORT; PLASMAS; JETS
AB It is shown that some aspects of the accretion disc physics can be experimentally simulated with the use of an array of properly directed plasma jets created by intense laser beams. For the laser energy of 1 to 3 kJ, one can create a quasi-planar disc with the Reynolds number exceeding 10(4) and magnetic Reynolds number in the range of 10-100. The way of seeding the disc with the magnetic field by using a cusp magnetic configuration is described.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Ryutov, DD (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94551 USA.
EM ryutov1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
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.
NR 21
TC 11
Z9 11
U1 0
U2 12
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 21
EP 26
DI 10.1007/s10509-010-0558-9
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800005
ER
PT J
AU Haas, DM
Bott, SC
Kim, J
Mariscal, DA
Madden, RE
Eshaq, Y
Ueda, U
Collins, G
Gunasekera, K
Beg, FN
Chittenden, JP
Niasse, N
Jennings, CA
AF Haas, D. M.
Bott, S. C.
Kim, J.
Mariscal, D. A.
Madden, R. E.
Eshaq, Y.
Ueda, U.
Collins, G.
Gunasekera, K.
Beg, F. N.
Chittenden, J. P.
Niasse, N.
Jennings, C. A.
TI Supersonic jet formation and propagation in x-pinches
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE X-pinch; Jets; Supersonic outflows
ID PLASMA; SIMULATIONS; DEFLECTION; DYNAMICS; CRITERIA; OUTFLOWS; DENSE
AB Observations of supersonic jet propagation in low-current x-pinches are reported. X-pinches comprising of four 7.5 mu m diameter tungsten wires were driven by an 80 kA, 50 ns current pulse from a compact pulser. Coronal plasma surrounding the wire cores was accelerated perpendicular to their surface due to the global JxB force, and traveled toward the axis of the x-pinch to form an axially propagating jet. These jets moved towards the electrodes and, late in time (similar to 150 ns), were observed to propagate well above the anode with a velocity of 3.3 +/- 0.6x10(4) m/s. Tungsten jets remained collimated at distances of up to 16 mm from the cross point, and an estimate of the local sound speed gives a Mach number of similar to 6. This is the first demonstration that supersonic plasma jets can be produced using x-pinches with such a small, low current pulser. Experimental data compares well to three-dimensional simulations using the GORGON resistive MHD code, and possible scaling to astrophysical jets is discussed.
C1 [Haas, D. M.; Bott, S. C.; Kim, J.; Mariscal, D. A.; Madden, R. E.; Eshaq, Y.; Ueda, U.; Collins, G.; Gunasekera, K.; Beg, F. N.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Chittenden, J. P.; Niasse, N.] Univ London Imperial Coll Sci Technol & Med, London, England.
[Jennings, C. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Bott, SC (reprint author), Univ Calif San Diego, La Jolla, CA 92093 USA.
EM sbott@ucsd.edu
FU DoE [DE-FE02-05ER54842]; DoE/NNSA HEDLP [DE-SC-0001063]
FX The authors would like to thank Dr. David Ampleford (Sandia National
Laboratory) and Dr. Simon Bland (Imperial College) for useful
discussions. Work is supported by the DoE Junior Faculty Grant
DE-FE02-05ER54842 and the joint DoE/NNSA HEDLP Program Grant
DE-SC-0001063.
NR 24
TC 11
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U1 1
U2 13
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 33
EP 40
DI 10.1007/s10509-011-0599-8
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800007
ER
PT J
AU Guzik, JA
AF Guzik, Joyce Ann
TI Recent advances in modeling stellar interiors
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE Stars: evolution; Stars: pulsation; Opacities; Equation of state
ID CORE HELIUM FLASH; CRYSTALLINE LATTICE PHASE; 3-DIMENSIONAL NUMERICAL
SIMULATIONS; THERMONUCLEAR REACTION-RATES; ARBITRARY ROTATION LAWS;
EQUATION-OF-STATE; MASS RED GIANTS; TURBULENT CONVECTION; SOLAR MODELS;
THERMAL-CONDUCTIVITIES
AB Advances in stellar interior modeling are being driven by new data from large-scale surveys and high-precision photometric and spectroscopic observations. Here we focus on single stars in normal evolutionary phases; we will not discuss the many advances in modeling star formation, interacting binaries, supernovae, or neutron stars. We review briefly: (1) updates to input physics of stellar models; (2) progress in two and three-dimensional evolution and hydrodynamic models; (3) insights from oscillation data used to infer stellar interior structure and validate model predictions (asteroseismology). We close by highlighting a few outstanding problems, e.g., the driving mechanisms for hybrid gamma Dor/delta Sct star pulsations, the cause of giant eruptions seen in luminous blue variables such as eta Car and P Cyg, and the solar abundance problem.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Guzik, JA (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM joy@lanl.gov
NR 96
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U1 0
U2 4
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
EI 1572-946X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 95
EP 101
DI 10.1007/s10509-010-0552-2
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800016
ER
PT J
AU Turck-Chieze, S
Loisel, G
Gilles, D
Piau, L
Blancard, C
Blenski, T
Busquet, M
Caillaud, T
Cosse, P
Delahaye, F
Faussurier, G
Fariaut, J
Gilleron, F
Guzik, JA
Harris, J
Kilcrease, DP
Magee, NH
Pain, JC
Porcherot, Q
Poirier, M
Soullier, G
Zeippen, CJ
Bastiani-Ceccotti, S
Reverdin, C
Silvert, V
Thais, F
Villette, B
AF Turck-Chieze, S.
Loisel, G.
Gilles, D.
Piau, L.
Blancard, C.
Blenski, T.
Busquet, M.
Caillaud, T.
Cosse, P.
Delahaye, F.
Faussurier, G.
Fariaut, J.
Gilleron, F.
Guzik, J. A.
Harris, J.
Kilcrease, D. P.
Magee, N. H.
Pain, J. C.
Porcherot, Q.
Poirier, M.
Soullier, G.
Zeippen, C. J.
Bastiani-Ceccotti, S.
Reverdin, C.
Silvert, V.
Thais, F.
Villette, B.
TI Radiative properties of stellar plasmas and open challenges
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE Atomic processes; Sun: helioseismology; Stars: interiors; Stars:
asteroseismology; Cepheids stars: variables
ID LOCAL-DENSITY APPROXIMATION; ABSORPTION-MEASUREMENTS; OPACITY PROJECT;
ATOMIC DATA; SOLAR; ACCELERATIONS; ABUNDANCES; HELIOSEISMOLOGY;
CONSTRAINTS; CODE
AB The lifetime of solar-like stars, the envelope structure of more massive stars, and stellar acoustic frequencies largely depend on the radiative properties of the stellar plasma. Up to now, these complex quantities have been estimated only theoretically. The development of the powerful tools of helio- and astero- seismology has made it possible to gain insights on the interiors of stars. Consequently, increased emphasis is now placed on knowledge of the monochromatic opacity coefficients. Here we review how these radiative properties play a role, and where they are most important. We then concentrate specifically on the envelopes of beta Cephei variable stars. We discuss the dispersion of eight different theoretical estimates of the monochromatic opacity spectrum and the challenges we need to face to check these calculations experimentally.
C1 [Turck-Chieze, S.; Loisel, G.; Gilles, D.; Piau, L.] CE Saclay, CEA DSM IRFU SAp, F-91190 Gif Sur Yvette, France.
[Loisel, G.; Blenski, T.; Poirier, M.; Thais, F.] CE Saclay, CEA DSM IRAMIS SPAM, F-91190 Gif Sur Yvette, France.
[Blancard, C.; Caillaud, T.; Cosse, P.; Faussurier, G.; Fariaut, J.; Gilleron, F.; Pain, J. C.; Porcherot, Q.; Soullier, G.; Reverdin, C.; Silvert, V.; Villette, B.] CEA DAM DIF, F-91297 Arpajon, France.
[Busquet, M.] Univ Paris 11, LPGP, F-91405 Orsay, France.
[Delahaye, F.; Zeippen, C. J.] UPMC, Observ Paris, CNRS, LERMA,ENS,UCP, F-92195 Meudon, France.
[Guzik, J. A.; Kilcrease, D. P.; Magee, N. H.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Harris, J.] AWE, Reading RG7 4PR, Berks, England.
[Bastiani-Ceccotti, S.] UPMC, CNRS, Ecole Polytech, LULI,CEA, F-91128 Palaiseau, France.
RP Turck-Chieze, S (reprint author), CE Saclay, CEA DSM IRFU SAp, F-91190 Gif Sur Yvette, France.
EM sylvaine.turck-chieze@cea.fr
OI Pain, Jean-Christophe/0000-0002-7825-1315; Kilcrease,
David/0000-0002-2319-5934
NR 41
TC 12
Z9 12
U1 0
U2 8
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 103
EP 109
DI 10.1007/s10509-010-0583-8
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800017
ER
PT J
AU Mussack, K
AF Mussack, Katie
TI Dynamic screening in solar p-p reactions: is the mean-field approach
applicable in solar plasma?
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE Equation of state; Nuclear reactions; Nucleosynthesis; Abundances;
Plasmas; Sun; General
ID THERMONUCLEAR REACTIONS; ASTROPHYSICAL PLASMAS; CHEMICAL-COMPOSITION;
NUCLEAR-REACTIONS; HELIOSEISMOLOGY; ABUNDANCES; MODELS; SUN
AB Although the Salpeter approximation for static screening is widely accepted and used in stellar modeling, the question of dynamic screening has been revisited. Here we reproduce Shaviv and Shaviv's numerical analysis of the screening energy for p-p reactions in the solar core using the techniques of molecular dynamics to directly calculate the motion of ions and electrons due to Coulomb interactions without the mean-field assumption that is inherent in the Salpeter approximation. We conclude that the effects of dynamic screening are relevant and should be included in the treatment of the plasma, especially in the computation of nuclear reaction rates.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Mussack, K (reprint author), Los Alamos Natl Lab, XTD 2,Mail Stop T-086, Los Alamos, NM 87545 USA.
EM mussack@lanl.gov
NR 30
TC 0
Z9 0
U1 0
U2 5
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 111
EP 115
DI 10.1007/s10509-010-0576-7
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800018
ER
PT J
AU Hurricane, OA
Hansen, JF
Harding, EC
Smalyuk, VA
Remington, BA
Langstaff, G
Park, HS
Robey, HF
Kuranz, CC
Grosskopf, MJ
Gillespie, RS
AF Hurricane, O. A.
Hansen, J. F.
Harding, E. C.
Smalyuk, V. A.
Remington, B. A.
Langstaff, G.
Park, H. -S.
Robey, H. F.
Kuranz, C. C.
Grosskopf, M. J.
Gillespie, R. S.
TI Blast-wave driven Kelvin-Helmholtz shear layers in a laser driven
high-energy-density plasma
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE Kelvin-Helmholtz instability; Shear layer; Vortex
ID VISCOSITY
AB The first successful high energy density Kelvin-Helmholtz (KH) shear layer experiments (O.A. Hurricane et al. in Phys. Plasmas, 16:056305, 2009; E.C. Harding et al. in Phys. Rev. Lett., 103:045005, 2009) demonstrated the ability to design and field a target that produces, in a controlled fashion, an array of large diagnosable KH vortices. Data from these experiments vividly showed the complete evolution of large (similar to 400 mu m) distinct eddies, from formation to apparent turbulent break-up in the span of about 75 ns. A second set of experiments, in which the density of a key carbon-foam material was varied, was recently performed. The new series showed a great deal of fine-structure that was not as apparent as in the original experiments. In this paper, the results of both experiments will be discussed along with supporting theory and simulation. An attempt is made to connect these observations with some turbulent scale-lengths. Finally, we speculate about the possible connection of these experiments to astrophysical contexts.
C1 [Hurricane, O. A.; Hansen, J. F.; Smalyuk, V. A.; Remington, B. A.; Langstaff, G.; Park, H. -S.; Robey, H. F.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Hansen, J. F.] Gen Atom, San Diego, CA 92121 USA.
[Harding, E. C.; Kuranz, C. C.; Grosskopf, M. J.; Gillespie, R. S.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
RP Hurricane, OA (reprint author), Lawrence Livermore Natl Lab, 7000 E Ave, Livermore, CA 94550 USA.
EM hurricane1@llnl.gov
FU U.S. Department of Energy Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; National Laser User Facilities Grant
FX This work has benefitted from the support of Dr. Alan Wan and Dr.
Charlie Verdon. Thanks to Prof. R. Paul Drake for technical comments and
discussion of this work. This work was performed under the auspices of
the U.S. Department of Energy Lawrence Livermore National Laboratory
under contract No. DE-AC52-07NA27344 and support by a National Laser
User Facilities Grant.
NR 8
TC 10
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U1 1
U2 9
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 139
EP 143
DI 10.1007/s10509-010-0571-z
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800022
ER
PT J
AU Hilburn, G
Liang, ES
Liu, SM
Li, H
AF Hilburn, Guy
Liang, Edison
Liu, Siming
Li, Hui
TI General relativistic magnetohydrodynamic and Monte Carlo Modeling of
sagittarius A*
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE Accretion disc; Black hole; Galactic Center; Magnetohydrodynamics
AB We present results of models of the physical space and parameters of the accretion disk of Sagittarius A*, as well as simulations of its emergent spectrum. This begins with HARM, a 2D general relativistic magneto-hydrodynamic (GRMHD) model, specifically set up to evolve the space around a black hole. Data from HARM are then fed into a 2D Monte-Carlo (MC) code which generates and tracks emitted photons, allowing for absorption and scattering before they escape the volume.
C1 [Hilburn, Guy; Liang, Edison] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA.
[Hilburn, Guy; Li, Hui] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Liu, Siming] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland.
RP Hilburn, G (reprint author), Rice Univ, Dept Phys & Astron, 6100 Main, Houston, TX 77005 USA.
EM guy.l.hilburn@rice.edu
FU LANL IGPP; NSF [AST-0406882, AST-0909167, DOE- SC-0001481]
FX G.H. was supported by a LANL IGPP research grant and NSF AST-0406882. EL
was partially supported by NSF AST-0909167 and DOE- SC-0001481.
NR 5
TC 0
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U1 0
U2 5
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 145
EP 149
DI 10.1007/s10509-010-0534-4
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800023
ER
PT J
AU Hall, IM
Durmaz, T
Mancini, RC
Bailey, JE
Rochau, GA
AF Hall, I. M.
Durmaz, T.
Mancini, R. C.
Bailey, J. E.
Rochau, G. A.
TI Radiation hydrodynamic simulation of a photoionised plasma experiment at
the Z facility
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE Photoionised plasma; Modelling; Simulation; Hydrodynamics;
Atomic-kinetics
ID DESIGN; CODE
AB New, high spectral resolution X-ray observations from astrophysical photoionised plasmas have been recorded in recent years by the Chandra and XMM-Newton orbiting telescopes. These observations provide a wealth of detailed information and have motivated new efforts at developing a detailed understanding of the atomic kinetics and radiation physics of photoionised plasmas. The Z facility at Sandia National Laboratories is a powerful source of X-rays that enables us to produce and study photoionised plasmas in the laboratory under well characterised conditions. We discuss a series of radiation-hydrodynamic simulations to help understand the X-ray environment, plasma hydrodynamics and atomic kinetics in experiments where a collapsing wire array at Z is used as an ionising source of radiation to create a photoionised plasma. The numerical simulations are used to investigate the role that the key experimental parameters have on the photoionised plasma characteristics.
C1 [Hall, I. M.; Durmaz, T.; Mancini, R. C.] Univ Nevada, Reno, NV 89557 USA.
[Bailey, J. E.; Rochau, G. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Hall, IM (reprint author), Univ Nevada, Reno, NV 89557 USA.
EM ihall@unr.edu
FU National Nuclear Security Administration under the High Energy Density
Laboratory through DOE [DE-FG52-09NA29551]; SNL
FX This research was sponsored in part by the National Nuclear Security
Administration under the High Energy Density Laboratory Plasmas grant
program through DOE Grant DE-FG52-09NA29551 and SNL.
NR 9
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PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 189
EP 194
DI 10.1007/s10509-010-0522-8
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800030
ER
PT J
AU Kuranz, CC
Park, HS
Remington, BA
Drake, RP
Miles, AR
Robey, HF
Kilkenny, JD
Keane, CJ
Kalantar, DH
Huntington, CM
Krauland, CM
Harding, EC
Grosskopf, MJ
Marion, DC
Doss, FW
Myra, E
Maddox, B
Young, B
Kline, JL
Kyrala, G
Plewa, T
Wheeler, JC
Arnett, WD
Wallace, RJ
Giraldez, E
Nikroo, A
AF Kuranz, C. C.
Park, H. -S.
Remington, B. A.
Drake, R. P.
Miles, A. R.
Robey, H. F.
Kilkenny, J. D.
Keane, C. J.
Kalantar, D. H.
Huntington, C. M.
Krauland, C. M.
Harding, E. C.
Grosskopf, M. J.
Marion, D. C.
Doss, F. W.
Myra, E.
Maddox, B.
Young, B.
Kline, J. L.
Kyrala, G.
Plewa, T.
Wheeler, J. C.
Arnett, W. D.
Wallace, R. J.
Giraldez, E.
Nikroo, A.
TI Astrophysically relevant radiation hydrodynamics experiment at the
National Ignition Facility
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE Laboratory astrophysics; National Ignition Facility; Radiation
hydrodynamics; Hydrodynamic instability; Radiative shocks
ID RAYLEIGH-TAYLOR INSTABILITY; II SUPERNOVAE; EVOLUTION; EMISSION;
SN-1987A
AB The National Ignition Facility (NIF) is capable of creating new and novel high-energy-density (HED) systems relevant to astrophysics. Specifically, a system could be created that studies the effects of a radiative shock on a hydrodynamically unstable interface. These dynamics would be relevant to the early evolution after a core-collapse supernova of a red supergiant star. Prior to NIF, no HED facility had enough energy to perform this kind of experiment. The experimental target will include a 340 mu m predominantly plastic ablator followed by a low-density SiO(2) foam. The interface will have a specific, machined pattern that will seed hydrodynamic instabilities. The growth of the instabilities in a radiation-dominated environment will be observed. This experiment requires a a parts per thousand yen300 eV hohlraum drive and will be diagnosed using point projection pinhole radiography, which have both been recently demonstrated on NIF.
C1 [Kuranz, C. C.; Drake, R. P.; Huntington, C. M.; Krauland, C. M.; Harding, E. C.; Grosskopf, M. J.; Marion, D. C.; Doss, F. W.; Myra, E.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Park, H. -S.; Remington, B. A.; Miles, A. R.; Robey, H. F.; Keane, C. J.; Kalantar, D. H.; Maddox, B.; Young, B.; Wallace, R. J.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Kilkenny, J. D.; Giraldez, E.; Nikroo, A.] Gen Atom, San Diego, CA USA.
[Kline, J. L.; Kyrala, G.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Plewa, T.] Florida State Univ, Tallahassee, FL 32306 USA.
[Wheeler, J. C.] Univ Texas Austin, Austin, TX 78712 USA.
[Arnett, W. D.] Univ Arizona, Tucson, AZ USA.
RP Kuranz, CC (reprint author), Univ Michigan, Ann Arbor, MI 48109 USA.
EM ckuranz@umich.edu
RI Drake, R Paul/I-9218-2012;
OI Drake, R Paul/0000-0002-5450-9844; Kline, John/0000-0002-2271-9919
FU NNSA-DS; SC-OFES [DE-FG52-09NA29548]; NNSA-ASC [DEFC52- 08NA28616];
Lawrence Livermore National Security, LLC [DE-AC52-07NA27344]
FX The authors would like to thank to the NIF operations team and target
fabrication teams at Lawrence Livermore National Laboratory, General
Atomics and University of Michigan. This work is funded by the NNSA-DS
and SC-OFES Joint Program in High-Energy-Density Laboratory Plasmas,
grant number DE-FG52-09NA29548, the Predictive Sciences Academic
Alliances Program in NNSA-ASC via grant DEFC52- 08NA28616 and the
Lawrence Livermore National Security, LLC, under Contract No.
DE-AC52-07NA27344.
NR 24
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PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 207
EP 211
DI 10.1007/s10509-011-0679-9
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800033
ER
PT J
AU Liedahl, DA
AF Liedahl, Duane A.
TI X-ray photoionized plasmas in space and in the laboratory
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE Accretion disks; X-rays; Laboratory astrophysics
ID BLACK-HOLES; DRIVEN; MODELS; DIAGNOSTICS; RADIATION; EMISSION; DISKS;
X-1
AB As a primer for experimentalists interested in the topic, I provide a brief introduction to X-ray photoionized plasmas, with primary emphasis on the astrophysical concepts, including general descriptions of the relevant object classes, a discussion of the X-ray nebular concept, and, in some detail, the ionization parameter.
C1 Lawrence Livermore Natl Lab, Dept Phys & Life Sci, Div Phys, Livermore, CA 94550 USA.
RP Liedahl, DA (reprint author), Lawrence Livermore Natl Lab, Dept Phys & Life Sci, Div Phys, Livermore, CA 94550 USA.
EM liedahl1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX The author thanks Jim Bailey, Paul Drake, Mark Foord, Stephanie Hansen,
Roberto Mancini, and Scott Wilks for useful discussions. This work was
performed under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
NR 33
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PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 251
EP 256
DI 10.1007/s10509-011-0750-6
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800041
ER
PT J
AU Henderson, A
Liang, E
Yepes, P
Chen, H
Wilks, S
AF Henderson, Alexander
Liang, Edison
Yepes, Pablo
Chen, Hui
Wilks, Scott
TI Monte Carlo simulation of pair creation using petawatt lasers
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE Pair plasma
AB Irradiating high-Z targets such as gold with ultra-intense lasers creates electron-positron pairs. In particular, the positron density in the plasma created by this procedure is higher than that obtained via other laboratory-based methods, with theoretical maximum densities exceeding 10(18) cm(-3). All of the significantly contributing processes are well-known and hence we can study this phenomenon using Monte Carlo simulation. We focus on the latter part of this procedure, the passage of high-energy electrons through the target creating pairs. In particular, we discuss the usefulness of CERN's GEANT4 Monte Carlo code in simulating this process. Once this code is successfully calibrated, we will use it to perform parameter studies, and design future targets to optimize the positron yield.
C1 [Henderson, Alexander; Liang, Edison; Yepes, Pablo] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA.
[Chen, Hui; Wilks, Scott] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Henderson, A (reprint author), Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA.
EM alexander.henderson@rice.edu
FU NSF [AST-0909167]; DOE [DE-SC-000-1481]
FX This work was partially supported by NSF AST-0909167 and DOE
DE-SC-000-1481.
NR 7
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PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD NOV
PY 2011
VL 336
IS 1
BP 273
EP 277
DI 10.1007/s10509-011-0678-x
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 844EZ
UT WOS:000296731800045
ER
PT J
AU Werling, BP
Meehan, TD
Gratton, C
Landis, DA
AF Werling, Ben P.
Meehan, Timothy D.
Gratton, Claudio
Landis, Douglas A.
TI Influence of habitat and landscape perenniality on insect natural
enemies in three candidate biofuel crops
SO BIOLOGICAL CONTROL
LA English
DT Article
DE Biofuels; Biodiversity; Biological control; Land use change
ID COLEOPTERA-COCCINELLIDAE; AGRICULTURAL LANDSCAPES; BIOLOGICAL-CONTROL;
VEGETATIONAL DIVERSITY; COLEOMEGILLA-MACULATA; POPULATION RESPONSES;
BEETLE DIVERSITY; ORIUS-INSIDIOSUS; BIODIVERSITY; MANAGEMENT
AB Cultivation of biofuel crops could change agricultural landscapes, affecting natural enemies at multiple scales. We sampled five natural enemy families with sticky cards in three model biofuel habitats (corn, switchgrass and prairie; n = 60) across southern Michigan and Wisconsin, comparing captures between habitats and relating them to the area of forest, annual crop and herbaceous perennial habitat in the landscape within 2 km of sites. In a first analysis, we compared Coccinellidae assemblages between habitats and examined the impact of habitat type and landscape composition on species richness and abundance. Results showed that, at the habitat scale, perennial grasslands supported a greater abundance of uncommon, native coccinellids and hosted distinct species assemblages compared to corn. At a broader scale, abundances of exotic and uncommon native ladybeetles responded differently to landscape composition, decreasing with the area of herbaceous perennials and annual crops, respectively. In a second analysis, we related family-level abundances of Anthocoridae, Syrphidae, Dolichopodidae and Chrysopidae to habitat type and landscape composition. Dolichopodids were more abundant in grasslands, while anthocorid and syrphid abundance increased over fivefold with the area of herbaceous, perennial habitat in the landscape surrounding corn, but not grassland, sites. These findings suggest that perennial grasslands used for bioenergy production could conserve natural enemies which are less abundant in corn, the dominant biofuel in existing landscapes. Moreover, cultivating annual cropland with herbaceous, perennial habitats could affect the abundance of natural enemies in existing crops and alter the suitability of entire landscapes for these beneficial taxa. (C) 2011 Elsevier Inc. All rights reserved.
C1 [Werling, Ben P.; Landis, Douglas A.] Michigan State Univ, Dept Entomol, DOE Great Lakes Bioenergy Res Ctr, E Lansing, MI 48824 USA.
[Meehan, Timothy D.; Gratton, Claudio] Univ Wisconsin, Dept Entomol, DOE Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA.
RP Werling, BP (reprint author), Michigan State Univ, Dept Entomol, DOE Great Lakes Bioenergy Res Ctr, E Lansing, MI 48824 USA.
EM werlingb@msu.edu
FU DOE Great Lakes Bioenergy Research Center (DOE BER Office of Science
[DE-FC02-07ER64494]; DOE Great Lakes Bioenergy Research Center (DOE. OBP
Office of Energy Efficiency and Renewable Energy) [DE-AC05-76RL01830];
US National Science Foundation; DOE Energy Efficiency and Renewable
Energy; Michigan Agricultural Experiment Station
FX Thanks to two anonymous reviewers who provided valuable comments. Mary
Gardiner, Lauren Bailey, and Hannah Gaines established the GLBRC
Extensive site network and initial sampling protocols. Carol Baker and
Pam Mosley collected plant biomass in Michigan. Special thanks to
participating landowners as well as Ermyas Birru, Michael Burdick,
Amanda Falk, Emily Fricke, Adam Higgins, Steve Hong, Andy Jakubowski,
Craig Maier, Rachel Mallinger, Jessica Miesel, Emily Mueller, Collin
Schwantes, Cari Sebright, Ruth Smith and Laura Smith for invaluable
field assistance. This work was funded by the DOE Great Lakes Bioenergy
Research Center (DOE BER Office of Science DE-FC02-07ER64494 and DOE.
OBP Office of Energy Efficiency and Renewable Energy DE-AC05-76RL01830),
with additional support from the US National Science Foundation LTER
Program, DOE Energy Efficiency and Renewable Energy, and the Michigan
Agricultural Experiment Station.
NR 61
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PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1049-9644
J9 BIOL CONTROL
JI Biol. Control
PD NOV
PY 2011
VL 59
IS 2
BP 304
EP 312
DI 10.1016/j.biocontrol.2011.06.014
PG 9
WC Biotechnology & Applied Microbiology; Entomology
SC Biotechnology & Applied Microbiology; Entomology
GA 845YQ
UT WOS:000296864600030
ER
PT J
AU Getov, V
Hoisie, A
Wasserman, HJ
AF Getov, Vladimir
Hoisie, Adolfy
Wasserman, Harvey J.
TI Codesign for Systems and Applications: Charting the Path to Exascale
Computing INTRODUCTION
SO COMPUTER
LA English
DT Editorial Material
AB The clock speed benefits of Moore's law have ended, and researchers must codesign future exascale HPC systems and applications concurrently in an integrated manner to achieve higher performance under stringent power and reliability constraints.
C1 [Getov, Vladimir] Univ Westminster, London W1R 8AL, England.
[Hoisie, Adolfy] Pacific NW Natl Lab, Ctr Adv Architectures, Richland, WA 99352 USA.
[Wasserman, Harvey J.] Lawrence Berkeley Natl Lab, Natl Energy Res Sci Comp Ctr, User Serv Grp, Berkeley, CA USA.
RP Getov, V (reprint author), Univ Westminster, London W1R 8AL, England.
EM v.s.getov@westminster.ac.uk; adolfy.hoisie@pnnl.gov; hjwasserman@lbl.gov
NR 11
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U2 3
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 0018-9162
J9 COMPUTER
JI Computer
PD NOV
PY 2011
VL 44
IS 11
BP 19
EP 21
PG 3
WC Computer Science, Hardware & Architecture; Computer Science, Software
Engineering
SC Computer Science
GA 846GA
UT WOS:000296884000004
ER
PT J
AU Shalf, J
Quinlan, D
Janssen, C
AF Shalf, John
Quinlan, Dan
Janssen, Curtis
TI Rethinking Hardware-Software Codesign for Exascale Systems
SO COMPUTER
LA English
DT Article
AB The US Department of Energy's exascale computing initiative has identified hardware-software codesign as a central strategy in achieving more agile hardware development. Hardware simulation and code analysis tools that facilitate deeper collaboration between hardware architects and application teams will be an essential component of the codesign process.
C1 [Shalf, John] Lawrence Berkeley Natl Lab, Berkeley, CA USA.
[Quinlan, Dan] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Janssen, Curtis] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Shalf, J (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA USA.
EM jshalf@lbl.gov; dquinlan@llnl.gov; cljanss@sandia.gov
FU US Department of Energy's Office of Advanced Scientific Computing
Research; DoE Office of Advanced Scientific Computing Research
[DE-AC02-05CH11231, DE-AC52-07NA27344]; DoE's National Nuclear Security
Administration [DE-AC04-94AL85000]
FX The work described in this article was supported by the US Department of
Energy's Office of Advanced Scientific Computing Research. Lawrence
Berkeley National Laboratory is supported by the DoE Office of Advanced
Scientific Computing Research under contract DE-AC02-05CH11231. Lawrence
Livermore National Laboratory is supported by the DoE Office of Advanced
Scientific Computing Research under contract DE-AC52-07NA27344. Sandia
National Laboratories is a multiprogram laboratory managed and operated
by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin
Corporation, for the DoE's National Nuclear Security Administration
under contract DE-AC04-94AL85000. We also acknowledge Chris Rowen of
Tensilica and Martin Deneroff for insightful guidance and support.
NR 10
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U2 9
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 0018-9162
J9 COMPUTER
JI Computer
PD NOV
PY 2011
VL 44
IS 11
BP 22
EP 30
PG 9
WC Computer Science, Hardware & Architecture; Computer Science, Software
Engineering
SC Computer Science
GA 846GA
UT WOS:000296884000005
ER
PT J
AU Kerbyson, DJ
Vishnu, A
Barker, KJ
Hoisie, A
AF Kerbyson, Darren J.
Vishnu, Abhinav
Barker, Kevin J.
Hoisie, Adolfy
TI Codesign Challenges for Exascale Systems: Performance, Power, and
Reliability
SO COMPUTER
LA English
DT Article
ID GLOBAL ARRAYS
AB The complexity of large-scale parallel systems necessitates the simultaneous optimization of multiple hardware and software components to meet performance, efficiency, and fault-tolerance goals. A codesign methodology using modeling can benefit systems on the path to exascale computing.
C1 [Kerbyson, Darren J.; Hoisie, Adolfy] Pacific NW Natl Lab, Ctr Adv Architectures, Richland, WA 99352 USA.
RP Kerbyson, DJ (reprint author), Pacific NW Natl Lab, Ctr Adv Architectures, Richland, WA 99352 USA.
EM darren.kerbyson@pnnl.gov; abhinav.vishnu@pnnl.gov;
kevin.barker@pnnl.gov; adolfy.hoisie@pnnl.gov
FU US Department of Energy's Office of Advanced Scientific Computing
Research [59493, 59542]; US Department of Energy [DE-AC05-76RL01830]
FX This research is supported by the US Department of Energy's Office of
Advanced Scientific Computing Research, grants #59493 and #59542. The
Pacific Northwest National Laboratory is operated by Battelle for the US
Department of Energy under contract DE-AC05-76RL01830.
NR 13
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U1 0
U2 6
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 0018-9162
EI 1558-0814
J9 COMPUTER
JI Computer
PD NOV
PY 2011
VL 44
IS 11
BP 37
EP 43
PG 7
WC Computer Science, Hardware & Architecture; Computer Science, Software
Engineering
SC Computer Science
GA 846GA
UT WOS:000296884000007
ER
PT J
AU Alexander, FJ
Hoisie, A
Szalay, A
AF Alexander, Francis J.
Hoisie, Adolfy
Szalay, Alexander
TI Big Data GUEST EDITORS' INTRODUCTION
SO COMPUTING IN SCIENCE & ENGINEERING
LA English
DT Editorial Material
C1 [Alexander, Francis J.] Los Alamos Natl Lab, Informat Sci & Technol Ctr, Los Alamos, NM 87545 USA.
[Hoisie, Adolfy] Pacific NW Natl Lab, Ctr Adv Architectures, Richland, WA 99352 USA.
[Szalay, Alexander] Johns Hopkins Univ, Dept Comp Sci, Baltimore, MD 21218 USA.
RP Alexander, FJ (reprint author), Los Alamos Natl Lab, Informat Sci & Technol Ctr, Los Alamos, NM 87545 USA.
EM fja@lanl.gov; adolfy.hoisie@pnnl.gov; szalay@jhu.edu
NR 2
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U1 0
U2 26
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1521-9615
J9 COMPUT SCI ENG
JI Comput. Sci. Eng.
PD NOV-DEC
PY 2011
VL 13
IS 6
BP 10
EP 12
PG 3
WC Computer Science, Interdisciplinary Applications
SC Computer Science
GA 846QR
UT WOS:000296918800002
ER
PT J
AU Ahrens, JP
Hendrickson, B
Long, G
Miller, S
Ross, R
Williams, D
AF Ahrens, James P.
Hendrickson, Bruce
Long, Gabrielle
Miller, Steve
Ross, Robert
Williams, Dean
TI Data-Intensive Science in the US DOE: Case Studies and Future Challenges
SO COMPUTING IN SCIENCE & ENGINEERING
LA English
DT Article
AB Given its leading role in high-performance computing for modeling and simulation and its many experimental facilities, the US Department of Energy has a tremendous need for data-intensive science. Locating the challenges and commonalities among three case studies illuminates, in detail, the technical challenges involved in realizing data-intensive science.
C1 [Ahrens, James P.] Los Alamos Natl Lab, Appl Comp Sci Grp, Data Sci Scale Team, Los Alamos, NM 87545 USA.
[Hendrickson, Bruce] Sandia Natl Labs, Livermore, CA 94550 USA.
[Long, Gabrielle] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
[Miller, Steve] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Data Syst Sect, Oak Ridge, TN USA.
[Williams, Dean] Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA USA.
RP Ahrens, JP (reprint author), Los Alamos Natl Lab, Appl Comp Sci Grp, Data Sci Scale Team, Los Alamos, NM 87545 USA.
EM ahrens@lanl.gov; bah@sandia.gov; gglong@aps.anl.gov; millersd@ornl.gov;
rross@mcs.anl.gov; williams13@llnl.gov
FU Los Alamos National Security for the National Nuclear Security
Administration of the US Department of Energy [DE-AC52-06NA25396]; DOE's
National Nuclear Security Administration [DE-AC04-94AL85000]; DOE Office
of Science [DE-AC02-06CH11357]; UT-Battelle for the DOE
[DE-AC05-00OR22724]; DOE by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX Los Alamos National Laboratory is operated by the Los Alamos National
Security for the National Nuclear Security Administration of the US
Department of Energy under contract DE-AC52-06NA25396. Sandia National
Laboratories is a multiprogram laboratory managed and operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Corporation,
for the DOE's National Nuclear Security Administration under contract
DE-AC04-94AL85000. Work by Gabrielle Long and Robert Ross were supported
by the DOE Office of Science under contract DE-AC02-06CH11357. Oak Ridge
National Laboratory is managed by UT-Battelle for the DOE under contract
DE-AC05-00OR22724. This work was performed under the auspices of the DOE
by Lawrence Livermore National Laboratory under contract
DE-AC52-07NA27344.
NR 4
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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 1521-9615
J9 COMPUT SCI ENG
JI Comput. Sci. Eng.
PD NOV-DEC
PY 2011
VL 13
IS 6
BP 14
EP 23
PG 10
WC Computer Science, Interdisciplinary Applications
SC Computer Science
GA 846QR
UT WOS:000296918800003
ER
PT J
AU Rajasingham, A
Bowen, A
O'Reilly, C
Sholtes, K
Schilling, K
Hough, C
Brunkard, J
Domercant, JW
Lerebours, G
Cadet, J
Quick, R
Person, B
AF Rajasingham, Anu
Bowen, Anna
O'Reilly, Ciara
Sholtes, Kari
Schilling, Katie
Hough, Catherine
Brunkard, Joan
Domercant, Jean Wysler
Lerebours, Gerald
Cadet, Jean
Quick, Robert
Person, Bobbie
TI Cholera Prevention Training Materials for Community Health Workers,
Haiti, 2010-2011
SO EMERGING INFECTIOUS DISEASES
LA English
DT Article
ID EPIDEMIC CHOLERA
AB Stopping the spread of the cholera epidemic in Haiti required engaging community health workers (CHWs) in prevention and treatment activities. The Centers for Disease Control and Prevention collaborated with the Haitian Ministry of Public Health and Population to develop CHW educational materials, train >1,100 CHWs, and evaluate training efforts.
C1 [Rajasingham, Anu; Bowen, Anna; O'Reilly, Ciara; Sholtes, Kari; Schilling, Katie; Hough, Catherine; Brunkard, Joan; Cadet, Jean; Quick, Robert; Person, Bobbie] Ctr Dis Control & Prevent, Atlanta, GA 30333 USA.
[Rajasingham, Anu; Sholtes, Kari] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA.
[Domercant, Jean Wysler] Ctr Dis Control & Prevent, Port Au Prince, Haiti.
[Lerebours, Gerald] Minist Publ Hlth & Populat, Port Au Prince, Haiti.
RP Rajasingham, A (reprint author), Ctr Dis Control & Prevent, 1600 Clifton Rd NE,Mailstop C09, Atlanta, GA 30333 USA.
EM idb4@cdc.gov
OI Brunkard, Joan/0000-0001-5270-2627
NR 9
TC 5
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U1 0
U2 8
PU CENTERS DISEASE CONTROL
PI ATLANTA
PA 1600 CLIFTON RD, ATLANTA, GA 30333 USA
SN 1080-6040
J9 EMERG INFECT DIS
JI Emerg. Infect. Dis
PD NOV
PY 2011
VL 17
IS 11
BP 2162
EP 2165
DI 10.3201/eid1711.110806
PG 4
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 843KI
UT WOS:000296670300041
PM 22204034
ER
PT J
AU Yoon, SH
Reiss, DJ
Bare, JC
Tenenbaum, D
Pan, M
Slagel, J
Moritz, RL
Lim, S
Hackett, M
Menon, AL
Adams, MWW
Barnebey, A
Yannone, SM
Leigh, JA
Baliga, NS
AF Yoon, Sung Ho
Reiss, David J.
Bare, J. Christopher
Tenenbaum, Dan
Pan, Min
Slagel, Joseph
Moritz, Robert L.
Lim, Sujung
Hackett, Murray
Menon, Angeli Lal
Adams, Michael W. W.
Barnebey, Adam
Yannone, Steven M.
Leigh, John A.
Baliga, Nitin S.
TI Parallel evolution of transcriptome architecture during genome
reorganization
SO GENOME RESEARCH
LA English
DT Article
ID ARCHAEON PYROCOCCUS-FURIOSUS; HORIZONTAL GENE-TRANSFER;
HYPERTHERMOPHILIC ARCHAEON; METHANOCOCCUS-MARIPALUDIS; ESCHERICHIA-COLI;
SULFOLOBUS-SOLFATARICUS; HALOBACTERIUM-SALINARUM; MICROARRAY ANALYSIS;
MICROBIAL GENOMES; ELEMENTAL SULFUR
AB Assembly of genes into operons is generally viewed as an important process during the continual adaptation of microbes to changing environmental challenges. However, the genome reorganization events that drive this process are also the roots of instability for existing operons. We have determined that there exists a statistically significant trend that correlates the proportion of genes encoded in operons in archaea to their phylogenetic lineage. We have further characterized how microbes deal with operon instability by mapping and comparing transcriptome architectures of four phylogenetically diverse extremophiles that span the range of operon stabilities observed across archaeal lineages: a photoheterotrophic halophile (Halobacterium salinarum NRC-1), a hydrogenotrophic methanogen (Methanococcus maripaludis S2), an acidophilic and aerobic thermophile (Sulfolobus solfataricus P2), and an anaerobic hyperthermophile (Pyrococcus furiosus DSM 3638). We demonstrate how the evolution of transcriptional elements (promoters and terminators) generates new operons, restores the coordinated regulation of translocated, inverted, and newly acquired genes, and introduces completely novel regulation for even some of the most conserved operonic genes such as those encoding subunits of the ribosome. The inverse correlation (r = -0.92) between the proportion of operons with such internally located transcriptional elements and the fraction of conserved operons in each of the four archaea reveals an unprecedented view into varying stages of operon evolution. Importantly, our integrated analysis has revealed that organisms adapted to higher growth temperatures have lower tolerance for genome reorganization events that disrupt operon structures.
C1 [Yoon, Sung Ho; Reiss, David J.; Bare, J. Christopher; Tenenbaum, Dan; Pan, Min; Slagel, Joseph; Moritz, Robert L.] Inst Syst Biol, Seattle, WA 98109 USA.
[Lim, Sujung; Leigh, John A.] Univ Washington, Dept Microbiol, Seattle, WA 98195 USA.
[Hackett, Murray] Univ Washington, Dept Chem Engn, Seattle, WA 98195 USA.
[Menon, Angeli Lal; Adams, Michael W. W.] Univ Georgia, Dept Biochem, Athens, GA 30602 USA.
[Menon, Angeli Lal; Adams, Michael W. W.] Univ Georgia, Dept Mol Biol, Athens, GA 30602 USA.
[Barnebey, Adam; Yannone, Steven M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
RP Baliga, NS (reprint author), Inst Syst Biol, Seattle, WA 98109 USA.
EM nbaliga@systemsbiology.org
OI Bare, J. Christopher/0000-0003-1006-1491
FU U.S. Department of Energy [DE-FG02-07ER64327, DG-FG02-08ER64685]; Office
of Science (BER), U.S. Department of Energy [DE-FG02-08ER64685]; Office
of Science (BES), U.S. Department of Energy [DE-FG05-95ER20175];
National Science Foundation MRI [0923536]; Office of Science, Office of
Biological and Environmental Research of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX This work was supported by the U.S. Department of Energy, Award Nos.
DE-FG02-07ER64327 and DG-FG02-08ER64685 (N.S.B.); the Office of Science
(BER), U.S. Department of Energy, Award No. DE-FG02-08ER64685 (J.A.L.);
the Office of Science (BES), U.S. Department of Energy, Award No.
DE-FG05-95ER20175 (M. W. W. A.); and the National Science Foundation
MRI, Grant No. 0923536 (R. L. M.). The work conducted by ENIGMA was
supported by the Office of Science, Office of Biological and
Environmental Research of the U.S. Department of Energy under Contract
No. DE-AC02-05CH11231.
NR 92
TC 29
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U1 4
U2 17
PU COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
PI COLD SPRING HARBOR
PA 1 BUNGTOWN RD, COLD SPRING HARBOR, NY 11724 USA
SN 1088-9051
J9 GENOME RES
JI Genome Res.
PD NOV
PY 2011
VL 21
IS 11
BP 1892
EP 1904
DI 10.1101/gr.122218.111
PG 13
WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Genetics & Heredity
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Genetics & Heredity
GA 843TW
UT WOS:000296696600013
PM 21750103
ER
PT J
AU Mitri, FG
AF Mitri, Farid G.
TI Electromagnetic Wave Scattering of a High-Order Bessel Vortex Beam by a
Dielectric Sphere
SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
LA English
DT Article
DE Dielectric sphere; electromagnetic scattering; high-order Bessel vortex
beam
ID FOCUSED LASER-BEAM; GAUSSIAN-BEAM; LIGHT-SCATTERING; DIFFRACTION;
GENERATION; RADIATION; CELLS; AXIS
AB This study investigates the arbitrary scattering of an unpolarized electromagnetic (EM) high-order Bessel vortex (helicoidal) beam (HOBVB) by a homogeneous water sphere in air. The radial components of the electric and magnetic scattering fields are expressed using partial wave series involving the beam-shape coefficients and the scattering coefficients of the sphere. The magnitude of the 3D electric and magnetic scattering directivity plots in the far-field region are evaluated using a numerical integration procedure for cases where the sphere is centered on the beam's axis and shifted off-axially with particular emphasis on the half-conical angle of the wave number components and the order (or helicity) of the beam. Some properties of the EM scattering of an HOBVB by the water sphere are discussed. The results are of some the scattering of importance in applications involving EM HOBVBs by a spherical object.
C1 Los Alamos Natl Lab, Sensors & Electrochem Devices Acoust & Sensors Te, Los Alamos, NM 87545 USA.
RP Mitri, FG (reprint author), Los Alamos Natl Lab, Sensors & Electrochem Devices Acoust & Sensors Te, MPA-11,MS D429, Los Alamos, NM 87545 USA.
EM mitri@lanl.gov
FU Los Alamos National Laboratory [LDRD-X9N9, 20100595PRD1]
FX This work was supported in part by a Director's fellowship (LDRD-X9N9,
Project # 20100595PRD1) from Los Alamos National Laboratory. Disclosure:
this unclassified publication, with the following reference no.
LA-UR11-10347, has been approved for unlimited public release under DUSA
ENSCI.
NR 35
TC 29
Z9 30
U1 1
U2 18
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-926X
J9 IEEE T ANTENN PROPAG
JI IEEE Trans. Antennas Propag.
PD NOV
PY 2011
VL 59
IS 11
BP 4375
EP 4379
DI 10.1109/TAP.2011.2164228
PG 5
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 840XA
UT WOS:000296474200054
ER
PT J
AU Lopata, K
Reslan, R
Kowaska, M
Neuhauser, D
Govind, N
Kowalski, K
AF Lopata, K.
Reslan, R.
Kowaska, M.
Neuhauser, D.
Govind, N.
Kowalski, K.
TI Excited-State Studies of Polyacenes: A Comparative Picture Using
EOMCCSD, CR-EOMCCSD(T), Range-Separated (LR/RT)-TDDFT, TD-PM3, and
TD-ZINDO
SO JOURNAL OF CHEMICAL THEORY AND COMPUTATION
LA English
DT Article
ID DENSITY-FUNCTIONAL THEORY; COUPLED-CLUSTER METHODS; THIN-FILM
TRANSISTORS; LIGHT-EMITTING-DIODES; OPEN-SHELL SYSTEMS; ELECTRONIC
STATES; ORGANIC SEMICONDUCTORS; EXCITATION-ENERGIES; ANTHRACENE;
MOLECULES
AB The low-lying excited states (L(a) and L(b)) of polyacenes from naphthalene to heptacene (N = 2-7) are studied using various time-dependent computational approaches. We perform high-level excited-state calculations using equation of motion coupled cluster with singles and doubles (EOMCCSD) and completely renormalized equation of motion coupled cluster with singles, doubles, and perturbative triples (CR-EOMCCSD(T)) and use these results to evaluate the performance of various range-separated exchange-correlation functionals within linear-response (LR) and real-time (RT) time-dependent density functional theories (TDDFT). As has been reported recently, we find that the range-separated family of functionals addresses the well-documented TDDFT failures in describing these low-lying singlet excited states to a large extent and are as about as accurate as results from EOMCCSD on average. Real-time TDDFT visualization shows that the excited state charged densities are consistent with the predictions of the perimeter free electron orbital (PFEO) model. This corresponds to particle-on-a-ring confinement, which leads to the well-known red-shift of the excitations with acene length. We also use time-dependent semiempirical methods like TD-PM3 and TD-ZINDO, which are capable of handling very large systems. Once reparametrized to match the CR-EOMCCSD(T) results, TD-ZINDO becomes roughly as accurate as range-separated TDDFT, which opens the door to modeling systems such as large molecular assemblies.
C1 [Lopata, K.; Govind, N.; Kowalski, K.] Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, Richland, WA 99352 USA.
[Reslan, R.; Neuhauser, D.] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA.
[Kowaska, M.] Washington State Univ Tri Cities, Dept Chem, Richland, WA 99354 USA.
RP Lopata, K (reprint author), Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, Richland, WA 99352 USA.
EM kenneth.lopata@pnnl.gov; dxn@chem.ucla.edu; niri.govind@pnnl.gov;
karol.kowalski@pnnl.gov
FU U.S. Department of Energy's Office of Biological and Environmental
Research; Battelle Memorial Institute [DE-AC06-76RLO-1830]; EMSL;
Extreme Scale Computing Initiative; DOE-EFRC
FX A portion of the research was performed using EMSL, a national
scientific user facility sponsored by the U.S. Department of Energy's
Office of Biological and Environmental Research and located at Pacific
Northwest National Laboratory (PNNL). PNNL is operated for the
Department of Energy by the Battelle Memorial Institute under Contract
DE-AC06-76RLO-1830. K.L. acknowledges the William Wiley Postdoctoral
Fellowship from EMSL. K.K. and N.G. acknowledge support from the Extreme
Scale Computing Initiative, a Laboratory Directed Research and
Development Program at Pacific Northwest National Laboratory. D.N. and
R.R. gratefully acknowledge support by DOE-EFRC.
NR 58
TC 46
Z9 46
U1 2
U2 49
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1549-9618
J9 J CHEM THEORY COMPUT
JI J. Chem. Theory Comput.
PD NOV
PY 2011
VL 7
IS 11
BP 3686
EP 3693
DI 10.1021/ct2005165
PG 8
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 842KD
UT WOS:000296597300024
PM 26598263
ER
PT J
AU Biersack, HJ
Palmedo, H
Andris, A
Rogenhofer, S
Knapp, FF
Guhlke, S
Ezziddin, S
Bucerius, J
von Mallek, D
AF Biersack, Hans-Juergen
Palmedo, Holger
Andris, Andrej
Rogenhofer, Stefan
Knapp, Furn F.
Guhlke, Stefan
Ezziddin, Samer
Bucerius, Jan
von Mallek, Dirk
TI Palliation and Survival After Repeated Re-188-HEDP Therapy of
Hormone-Refractory Bone Metastases of Prostate Cancer: A Retrospective
Analysis
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Article
DE Re-188-HEDP; bone metastases; palliation; prostate cancer; survival
ID STRONTIUM PLASMA-CLEARANCE; SR-89 RADIONUCLIDE THERAPY; OSSEOUS
METASTASES; PAIN PALLIATION; SM-153 EDTMP; DOUBLE-BLIND; CARCINOMA;
TOXICITY; PHARMACOKINETICS; DIPHOSPHONATE
AB This retrospective study compared the effects of single and multiple administrations of Re-186-hydroxyethylidenediphosphonate (Re-186-HEDP) on palliation and survival of prostate cancer patients presenting with more than 5 skeletal metastases. Methods: A total of 60 patients were divided into 3 groups. Group A (n = 19) consisted of patients who had received a single injection; group B (n = 19), patients who had 2 injections; and group C (n = 22), patients who had 3 or more successive injections. The Re-188-HEDP was prepared using non-carrier-added Re-188 obtained from an in-house W-188/Re-188 generator after dilution with carrier perrhenate. Patients' data available from the referring physicians-including prostate-specific antigen levels-were entered into a Windows-based matrix and analyzed using a statistical program. The Gleason scores were similar for all 3 groups. Results: Mean survival from the start of treatment was 4.50 +/- 0.81 mo (95% confidence interval [CI], 2.92-6.08) for group A, 9.98 +/- 2.21 mo (95% CI, 5.65-14.31) for group B, and 15.66 +/- 3.23 (95% CI, 9.33-22.0) for group C. Although the 3 groups did not differ in Gleason score, the number of lost life-years was significantly lower in group C than in groups A and B. Pain palliation was achieved in 89.5% of group A, 94.7% of group B, and 90.9% of group C. Conclusion: Post-treatment overall survival could be improved from 4.50 to 15.66 mo by multiple-injection bone-targeted therapy with Re-188-HEDP, when compared with a single injection. Significant pain palliation was common and independent of administration frequency.
C1 [Biersack, Hans-Juergen; Palmedo, Holger; Andris, Andrej; Guhlke, Stefan; Ezziddin, Samer; Bucerius, Jan; von Mallek, Dirk] Univ Hosp Bonn, Dept Nucl Med, Bonn, Germany.
[Rogenhofer, Stefan] Univ Hosp Bonn, Dept Urol, Bonn, Germany.
[Knapp, Furn F.] Oak Ridge Natl Lab, Nucl Med Program, Oak Ridge, TN USA.
RP Biersack, HJ (reprint author), Univ Bonn, Dept Nucl Med, Sigmund Freud Str 25, D-53127 Bonn, Germany.
EM hans-juergen.biersack@ukb.uni-bonn.de
FU Alexander von Humboldt Foundation; U.S. Department of Energy (DOE)
[DE-AC05-00OR22725]; UT-Battelle, LLC
FX This study was in part supported by the Alexander von Humboldt
Foundation, and one of the authors is a former von Humboldt fellow.
Research at the Oak Ridge National Laboratory (ORNL) is supported by the
U.S. Department of Energy (DOE) under contract DE-AC05-00OR22725 with
UT-Battelle, LLC. No other potential conflict of interest relevant to
this article was reported.
NR 32
TC 25
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U1 0
U2 5
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD NOV 1
PY 2011
VL 52
IS 11
BP 1721
EP 1726
DI 10.2967/jnumed.111.093674
PG 6
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 844BJ
UT WOS:000296722000016
PM 21976530
ER
PT J
AU Collino, RR
Wood, AW
Estrada, NM
Dick, BB
Ro, HW
Soles, CL
Wang, YQ
Thouless, MD
Goldman, RS
AF Collino, R. R.
Wood, A. W.
Estrada, N. M.
Dick, B. B.
Ro, H. W.
Soles, C. L.
Wang, Y. Q.
Thouless, M. D.
Goldman, R. S.
TI Formation and transfer of GaAsN nanostructure layers
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
LA English
DT Article
DE bubbles; cracks; gallium arsenide; III-V semiconductors; ion
implantation; nanofabrication; nanostructured materials; rapid thermal
annealing; semiconductor doping; semiconductor growth; wafer bonding
ID INSULATOR MATERIAL TECHNOLOGY; HYDROGEN IMPLANTATION; SMART-CUT(R)
PROCESS; THIN-FILM; SUBSTRATE; SI; SEPARATION; GASB
AB The authors report the simultaneous formation and transfer of GaAsN nanostructure layers to alternative substrates, a process termed "ion-cut synthesis." Ion-cut synthesis is induced by nitrogen ion implantation into GaAs (GaAs:N), followed by spin-on-glass (SOG) mediated wafer bonding and high temperature rapid thermal annealing (RTA). Due to the low ion-matrix diffusivity of GaAs:N, RTA induces the formation of both nanostructures and gas bubbles. The gas bubble pressure induces the formation and propagation of cracks, resulting in transfer of the nanostructured layer. The authors discuss the critical role of the physical properties and the thicknesses of the substrates and the SOG layer to the achievement of ion-cut synthesis. (C) 2011 American Vacuum Society. [DOI: 10.1116/1.3630120]
C1 [Collino, R. R.; Thouless, M. D.] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA.
[Collino, R. R.; Wood, A. W.; Estrada, N. M.; Dick, B. B.; Thouless, M. D.; Goldman, R. S.] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA.
[Wood, A. W.; Goldman, R. S.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA.
[Ro, H. W.; Soles, C. L.] Natl Inst Stand & Technol, Div Polymers, Gaithersburg, MD 20899 USA.
[Wang, Y. Q.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
RP Collino, RR (reprint author), Univ Calif Santa Barbara, Dept Mech Engn, Santa Barbara, CA 93106 USA.
EM thouless@umich.edu; rsgold@umich.edu
RI Goldman, Rachel/J-9091-2012; Collino, Rachel/B-5513-2014
OI Collino, Rachel/0000-0002-7958-4859
FU Center for Solar and Thermal Energy Conversion, an Energy Frontier
Research Center; U.S. Department of Energy, Office of Science, Office of
Basic Energy Sciences [DE-SC0000957]; NSF [CMMI-0700301, DMR-0520701];
Michigan Memorial Phoenix Institute; AFOSR [FA9950-08-1-0340]; U.S. DoD
under IC [HM1582-05-1-2027]; U.S. DoD under CIA [2007-0919714-00];
Center for Integrated Nanotechnologies at Los Alamos National Laboratory
FX RRC and RSG were supported by the Center for Solar and Thermal Energy
Conversion, an Energy Frontier Research Center, funded by the U.S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
under Award No. DE-SC0000957. RRC was also supported in part by graduate
research fellowships from the NSF and the Michigan Memorial Phoenix
Institute. AWW was supported in part by the AFOSR through the MURI
program under Grant No. FA9950-08-1-0340, the U.S. DoD under IC Grant
No. HM1582-05-1-2027, and CIA Contract No. 2007-0919714-00. NME and BBD
were supported by NSF under Grant No. CMMI-0700301. We gratefully
acknowledge the support of the Center for Integrated Nanotechnologies at
Los Alamos National Laboratory, as well as the assistance of the staff
at the Electron Microscopy and Microanalysis Laboratory, the Lurie
Nanofabrication Facility, and the Michigan Ion Beam Laboratory at UM.
The ion implanter at MIBL is funded by NSF Grant No. DMR-0520701.
NR 32
TC 0
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U1 2
U2 16
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0734-2101
J9 J VAC SCI TECHNOL A
JI J. Vac. Sci. Technol. A
PD NOV
PY 2011
VL 29
IS 6
AR 060601
DI 10.1116/1.3630120
PG 6
WC Materials Science, Coatings & Films; Physics, Applied
SC Materials Science; Physics
GA 843HQ
UT WOS:000296663300005
ER
PT J
AU Yang, L
Yu, XY
Zhu, ZH
Thevuthasan, T
Cowin, JP
AF Yang, Li
Yu, Xiao-Ying
Zhu, Zihua
Thevuthasan, Theva
Cowin, James P.
TI Making a hybrid microfluidic platform compatible for in situ imaging by
vacuum-based techniques
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
LA English
DT Article
DE microfabrication; microfluidics; polymer blends; secondary ion mass
spectra; time of flight mass spectra; vacuum techniques; vaporisation
ID SCANNING-ELECTRON-MICROSCOPY; LIQUID; SURFACES; WATER; ACCOMMODATION;
INTERFACES; HISTORY; TISSUES; SYSTEM; CELLS
AB A self-contained microfluidic-based device was designed and fabricated for in situ imaging of aqueous surfaces using vacuum techniques. The device is a hybrid between a microfluidic poly(dimethyl siloxane) block and external accessories, all portable on a small platform (10 x 8 cm(2)). The key feature is that a small aperture with a diameter of 2-3 mu m is opened to the vacuum, which serves as a detection window for in situ imaging of aqueous surfaces. Vacuum compatibility and temperature drop due to water vaporization are the two most important challenges in this invention. Theoretical calculations and fabrication strategies are presented from multiple design aspects. In addition, results from the time-of-flight secondary ion mass spectrometry and scanning electron microscopy of aqueous surfaces are presented. (C) 2011 American Vacuum Society. [DOI: 10.1116/1.3654147]
C1 [Yang, Li; Cowin, James P.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99354 USA.
[Yu, Xiao-Ying] Pacific NW Natl Lab, Atmospher Sci & Global Climate Change Div, Richland, WA 99354 USA.
[Zhu, Zihua; Thevuthasan, Theva] Pacific NW Natl Lab, WR Wiley Environm Mol Sci Lab, Sci Resources Div, Richland, WA 99354 USA.
RP Yang, L (reprint author), Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99354 USA.
EM xiaoying.yu@pnnl.gov; zihua.zhu@pnnl.gov; jpcowin@charter.net
RI Zhu, Zihua/K-7652-2012; Yu, Xiao-Ying/L-9385-2013
OI Yu, Xiao-Ying/0000-0002-9861-3109
FU Department of Energy (DOE) Division of Chemical Sciences, Geosciences,
and Biosciences (BES Chemical Sciences) [KC-0301020-16248]; Office of
Biological and Environmental Research (OBER); OBER at the Pacific
Northwest National Laboratory (PNNL)
FX We are grateful for the support from the Department of Energy (DOE)
Division of Chemical Sciences, Geosciences, and Biosciences (BES
Chemical Sciences Grant No. KC-0301020-16248) and the Office of
Biological and Environmental Research (OBER). The research was performed
in the W. R. Wiley Environmental Molecular Sciences Laboratory (EMSL), a
national scientific user facility sponsored by OBER and located at the
Pacific Northwest National Laboratory (PNNL). PNNL is operated for the
DOE by Battelle.
NR 34
TC 16
Z9 16
U1 2
U2 27
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0734-2101
J9 J VAC SCI TECHNOL A
JI J. Vac. Sci. Technol. A
PD NOV
PY 2011
VL 29
IS 6
AR 061101
DI 10.1116/1.3654147
PG 10
WC Materials Science, Coatings & Films; Physics, Applied
SC Materials Science; Physics
GA 843HQ
UT WOS:000296663300006
ER
PT J
AU Elder, JB
Vande Kamp, RW
AF Elder, James B.
Vande Kamp, Rodney W.
TI Benefits of the Multiple-echo Contact Technique for Ultrasonic Thickness
Testing
SO MATERIALS EVALUATION
LA English
DT Article
C1 [Elder, James B.; Vande Kamp, Rodney W.] Savannah River Nucl Solut, Savannah River Natl Lab, Mat Sci & Technol, Aiken, SC 29808 USA.
RP Elder, JB (reprint author), Savannah River Nucl Solut, Savannah River Natl Lab, Mat Sci & Technol, Savannah River Site,Bldg 730-A, Aiken, SC 29808 USA.
EM james.elder@srnl.doe.gov; rodney.vandekamp@srnl.doe.gov
NR 3
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC NONDESTRUCTIVE TEST
PI COLUMBUS
PA 1711 ARLINGATE LANE PO BOX 28518, COLUMBUS, OH 43228-0518 USA
SN 0025-5327
J9 MATER EVAL
JI Mater. Eval.
PD NOV
PY 2011
VL 69
IS 11
BP 1269
EP 1276
PG 8
WC Materials Science, Characterization & Testing
SC Materials Science
GA 847FB
UT WOS:000296956200001
ER
PT J
AU Kushima, A
Liu, XH
Zhu, G
Wang, ZL
Huang, JY
Li, J
AF Kushima, Akihiro
Liu, Xiao Hua
Zhu, Guang
Wang, Zhong Lin
Huang, Jian Yu
Li, Ju
TI Leapfrog Cracking and Nanoamorphization of ZnO Nanowires during In Situ
Electrochemical Lithiation
SO NANO LETTERS
LA English
DT Article
DE Nanoglass and nanoamorphization; crack; lithium embrittlement; in situ
TEM; lithium ion battery (LIB) decrepitation; glass-glass interface
(GGI) memory effect
ID LITHIUM-ION BATTERIES; LIQUID-METAL EMBRITTLEMENT; NEGATIVE ELECTRODES;
ANODES; SILICON; STORAGE; ALLOYS
AB The lithiation reaction of single ZnO nanowire (NW) electrode in a Li-ion nanobattery configuration was observed by in situ transmission electron microscopy. Upon first charge, the single-crystalline NW was transformed into a nanoglass with multiple glassy nanodomains (Gleiter, H. MRS Bulletin 2009, 34, 456) by an intriguing reaction mechanism. First, partial lithiation of crystalline NW induced multiple nanocracks similar to 70 nm ahead of the main lithiation front, which traversed the NW cross-section and divided the NW into multiple segments. This was followed by rapid surface diffusion of Li+ and solid-state amorphization along the open crack surfaces. Finally the crack surfaces merged, leaving behind a glass-glass interface (GGI). Such reaction front instabilt:y also repeated in the interior of each divided segment, further subdividing the NW into different nanoglass domains (nanoamorphization). Instead of the profuse dislocation plasticity seen in SnO2 NWs (Science 2010, 330, 1515), no dislocation was seen and the aforementioned nanocracking was the main precursor to the electrochemically driven solid-state amorphization in ZnO. Ab initio tensile decohesion calculations verified dramatic lithium embrittlement effect in ZnO, but not in SnO2. This is attributed to the aliovalency of Sn cation (Sn(IV), Sn(II)) in contrast to the electronically more rigid Zn(II) cation.
C1 [Liu, Xiao Hua; Huang, Jian Yu] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA.
[Kushima, Akihiro; Li, Ju] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA.
[Zhu, Guang; Wang, Zhong Lin] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA.
[Li, Ju] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China.
[Li, Ju] Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710049, Peoples R China.
RP Huang, JY (reprint author), Sandia Natl Labs, Ctr Integrated Nanotechnol, POB 5800, Albuquerque, NM 87185 USA.
EM jhuang@sandia.gov; liju@seas.upenn.edu
RI Albe, Karsten/F-1139-2011; Kushima, Akihiro/H-2347-2011; Liu,
Xiaohua/A-8752-2011; Wang, Zhong Lin/E-2176-2011; Huang,
Jianyu/C-5183-2008; Li, Ju/A-2993-2008; Zhu, Guang/F-2407-2013
OI Liu, Xiaohua/0000-0002-7300-7145; Wang, Zhong Lin/0000-0002-5530-0380;
Li, Ju/0000-0002-7841-8058;
FU NSF [DMR-1008104, DMR-0520020]; Air Force Office of Scientific Research
[FA9550-08-1-0325]; Sandia National Laboratories (SNL); Science of
Precision Multifunctional Nanostructures for Electrical Energy Storage
(NEES); Energy Frontier Research Canter (EFRC); U.S. Department of
Energy, Office of Science, Office of Basic Energy Sciences
[DESC0001160]; LDRD; NEES center; CENT; U.S. Department of Energy's
National Nuclear Security Administration [DE-AC04-94AL85000]
FX A.K. and J.L. acknowledge support by NSF Grants DMR-1008104 and
DMR-0520020, and Air Force Office of Scientific Research Grant
FA9550-08-1-0325. Portions of this work were supported by a Laboratory
Directed Research and Development (LDRD) project at Sandia National
Laboratories (SNL) and partly by the Science of Precision
Multifunctional Nanostructures for Electrical Energy Storage (NEES), an
Energy Frontier Research Canter (EFRC) funded by the U.S. Department of
Energy, Office of Science, Office of Basic Energy Sciences under Award
Number DESC0001160. The LDRD supported the development and Fabrication
of platforms. The NEES center supported the development of TEM
techniques, and some of the additional platform development, and
fabrication and materials characterization. CENT supported the TEM
capability and the fabrication capabilities that were used for the TEM
characterization, and this work represents the efforts of several CINT
users, primarily those with affiliation external to SNL. In addition,
this work was performed, in part, at the Sandia-Los Alamos Center for
Integrated Nanotechnologies (CINT), a U.S. Department of Energy, Office
of Basic Energy Sciences user facility. Sandia National Laboratories is
a multiprogram laboratory managed and 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. Helpful comment by Professor Andrew M. Rappe
regarding the aliovalency of Sn is gratefully acknowledged.
NR 34
TC 88
Z9 89
U1 15
U2 169
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4535
EP 4541
DI 10.1021/nl201376j
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700006
PM 21942500
ER
PT J
AU Peng, XH
Misewich, JA
Wong, SS
Sfeir, MY
AF Peng, Xiaohui
Misewich, James A.
Wong, Stanislaus S.
Sfeir, Matthew Y.
TI Efficient Charge Separation in Multidimensional Nanohybrids
SO NANO LETTERS
LA English
DT Article
DE DWNTs; CdSe nanocrystals; charged quantum dots; trion; charge transfer;
resonance energy transfer
ID QUANTUM-DOT SOLIDS; CDSE QUANTUM; SOLAR-CELLS; ELECTRON-TRANSFER; CARBON
NANOTUBE; NANOCRYSTAL SOLIDS; ENERGY-TRANSFER; PHOTOLUMINESCENCE;
KINETICS; FILMS
AB We report unidirectional charge transfer in multidimensional nanohybrids, consisting of a quantum dot, an electronically active molecular linker, and a carbon nanotube. After covalent attachment to the nanotube, only emission consistent with the negatively charged quantum dot exciton ion rather than the neutral exciton is observed, showing nearly monoexponential recombination kinetics and an average lifetime of 3.5 ns. Using kinetic models, we explain how charge transfer is biased at the expense of other decay pathways.
C1 [Sfeir, Matthew Y.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
[Peng, Xiaohui; Wong, Stanislaus S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
[Misewich, James A.; Wong, Stanislaus S.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
RP Sfeir, MY (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
EM msfeir@bnl.gov
OI Sfeir, Matthew/0000-0001-5619-5722
FU U.S. Department of Energy, Office of Basic Energy Sciences
[DE-AC02-98CH10886]; U.S. Department of Energy Office of Basic Energy
Sciences, Division of Materials Sciences and Engineering
FX Research carried out in part at the Center for Functional Nanomaterials,
Brookhaven National Laboratory, which is supported by the U.S.
Department of Energy, Office of Basic Energy Sciences, under Contract
No. DE-AC02-98CH10886. SSW specifically acknowledges the U.S. Department
of Energy Office of Basic Energy Sciences, Division of Materials
Sciences and Engineering for support of additional spectroscopy work and
for personnel support (XP and SSW) as well. We thank C. T. Black for
useful discussions and feedback on the manuscript.
NR 43
TC 15
Z9 15
U1 0
U2 38
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4562
EP 4568
DI 10.1021/nl2016625
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700010
PM 21981279
ER
PT J
AU Subramania, G
Li, QM
Lee, YJ
Figiel, JJ
Wang, GT
Fischer, AJ
AF Subramania, Ganapathi
Li, Qiming
Lee, Yun-Ju
Figiel, Jeffrey J.
Wang, George T.
Fischer, Arthur J.
TI Gallium Nitride Based Logpile Photonic Crystals
SO NANO LETTERS
LA English
DT Article
DE Three-dimensional photonic crystal; nanophotonics; gallium nitride;
logpile; Electron Beam Lithography
ID SPONTANEOUS EMISSION
AB We demonstrate a nine-layer logpile three-dimensional photonic crystal (3DPC) composed of single crystalline gallium nitride (GaN) nanorods, similar to 100 nm in size with lattize constants of 260, 280, and 300 nm with photonic band gap in the visible region. This unique GaN structure is created through a combined approach of a layer-by-layer template fabrication technique and selective metal organic chemical vapor deposition (MOCVD). These GaN 3DPC exhibit a stacking direction band gap characterized by strong optical reflectance between 380 and 500 nm. By introducing a "line-defect" cavity in the fifth (middle) layer of the 3DPC, a localized transmission mode with a quality factor of 25-30 is also observed within the photonic band gap. The realization of a group III nitride 3DPC with uniform features and a band gap at wavelengths in the visible region is an important step toward realizing complete control of the electromagnetic environment for group III nitride based optoelectronic devices.
C1 [Subramania, Ganapathi; Li, Qiming; Figiel, Jeffrey J.; Wang, George T.; Fischer, Arthur J.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Subramania, Ganapathi] Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87131 USA.
[Lee, Yun-Ju] Univ Texas Dallas, Dept Mat Sci & Engn, Richardson, TX 75080 USA.
RP Subramania, G (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM gssubra@sandia.gov
FU Sandia's Solid-State-Lighting Science Energy Frontier Research Center;
U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences; U.S. Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]
FX We thank Carlos Sanchez for assisting with nanofabrication. This work
was performed, in part, at the Center for Integrated Nanotechnologies, a
U.S. Department of Energy, Office of Basic Energy Sciences user
facility. This work was performed, in part, at the Center for Integrated
Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy
Sciences user facility. Fabrication of the PC and a portion of
structural and optical characterization was performed under Sandia's
Laboratory Directed Research and Development (LDRD) and a portion of
structural and optical characterization and data analysis was supported
by Sandia's Solid-State-Lighting Science Energy Frontier Research
Center, funded by the U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences. Sandia National Laboratories is a
multiprogram laboratory managed and operated by Sandia Corporation, a
wholly owned subsidiary of Lockheed Martin Corporation, for the U.S.
Department of Energy's National Nuclear Security Administration under
contract DE-AC04-94AL85000.
NR 26
TC 20
Z9 20
U1 1
U2 17
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4591
EP 4596
DI 10.1021/nl201867v
PG 6
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700015
PM 21970551
ER
PT J
AU Reuter, MG
Seideman, T
Ratner, MA
AF Reuter, Matthew G.
Seideman, Tamar
Ratner, Mark A.
TI Molecular Conduction through Adlayers: Cooperative Effects Can Help or
Hamper Electron Transport
SO NANO LETTERS
LA English
DT Article
DE Electron transport; cooperative effects; adlayers; tight-binding models
ID SELF-ASSEMBLED MONOLAYERS; PARALLEL ATOMIC WIRES; ORGANIC-MOLECULES;
JUNCTIONS; TRANSMISSION
AB We use a one-electron, tight-binding model of a molecular adlayer sandwiched between two metal electrodes to explore how cooperative effects between molecular wires influence electron transport through the adlayer. When compared to an isolated molecular wire, an adlayer exhibits cooperative effects that generally enhance conduction away from an isolated wire's resonance and diminish conductance near such a resonance. We also find that the interwire distance (related to the adlayer density) is a key quantity. Substrate-mediated coupling induces most of the cooperative effects in dense adlayers, whereas direct, interwire coupling (if present) dominates in sparser adlayers. In this manner, cooperative effects through dense adlayers cannot be removed, suggesting an optimal adlayer density for maximizing conduction.
C1 [Reuter, Matthew G.; Seideman, Tamar; Ratner, Mark A.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
RP Reuter, MG (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
EM mgreuter@u.northwestern.edu
FU DoE CSGF [DE-FG02-97ER25308]; NSF [CHE-1012207, DMR-0520513]
FX We are grateful to Abraham Nitzan, Gemma C. Solomon, Thorsten Hansen,
and Lisa A. Fredin for helpful conversations. M.G.R. thanks the DoE CSGF
(Grant DE-FG02-97ER25308) for a fellowship. We thank the NSF (Grant
CHE-1012207) and the MRSEC program of the NSF (DMR-0520513) for support.
NR 32
TC 23
Z9 23
U1 1
U2 12
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4693
EP 4696
DI 10.1021/nl202342a
PG 4
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700034
PM 22008014
ER
PT J
AU Buonsanti, R
Llordes, A
Aloni, S
Helms, BA
Milliron, DJ
AF Buonsanti, Raffaella
Llordes, Anna
Aloni, Shaul
Helms, Brett A.
Milliron, Delia J.
TI Tunable Infrared Absorption and Visible Transparency of Colloidal
Aluminum-Doped Zinc Oxide Nanocrystals
SO NANO LETTERS
LA English
DT Article
DE Nanocrystals; metal oxide; doping; synthesis design; plasmon absorption
ID QUANTUM DOTS; PHYSICAL-PROPERTIES; ZNO FILMS; SEMICONDUCTOR;
NANOPARTICLES; ELECTRODES; SIZE
AB Plasmonic nano crystals have been attracting a lot of attention both for fundamental studies and different applications, from sensing to imaging and optoelectronic devices. Transparent conductive oxides represent an interesting class of plasmonic materials in addition to metals and vacancy-doped semiconductor quantum dots. Herein, we report a rational synthetic strategy of high-quality colloidal aluminum-doped zinc oxide nanocrystals. The presence of substitutional aluminum in the zinc oxide lattice accompanied by the generation of free electrons is proved for the first time by tunable surface plasmon absorption in the infrared region both in solution and in thin films.
C1 [Buonsanti, Raffaella; Llordes, Anna; Aloni, Shaul; Helms, Brett A.; Milliron, Delia J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Milliron, DJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, 1 Cyclotron Rd,MS 67R4110, Berkeley, CA 94720 USA.
EM dmilliron@lbl.gov
RI Llordes, Anna/H-2370-2015; Milliron, Delia/D-6002-2012
OI Llordes, Anna/0000-0003-4169-9156; Helms, Brett/0000-0003-3925-4174;
FU U.S. Department of Energy (DOE) [DE-AC02-05CH11231]; Laboratory Directed
Research and Development Program; DOE
FX We thank Teresa Pick and Joern Larsen for their assistance with NMR and
ICP-OES measuraments, respectively, and Jeffrey Neaton for helpful
discussions. Research was supported by the U.S. Department of Energy
(DOE) under Contract No. DE-AC02-05CH11231, including work performed at
the Molecular Foundry as a user project, support from the Laboratory
Directed Research and Development Program (Dr. Llordes), and a DOE Early
Career Research Program grant (Dr. Milliron).
NR 40
TC 186
Z9 186
U1 27
U2 242
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4706
EP 4710
DI 10.1021/nl203030f
PG 5
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700037
PM 21970407
ER
PT J
AU Conley, H
Lavrik, NV
Prasai, D
Bolotin, KI
AF Conley, Hiram
Lavrik, Nickolay V.
Prasai, Dhiraj
Bolotin, Kirill I.
TI Graphene Bimetallic-like Cantilevers: Probing Graphene/Substrate
Interactions
SO NANO LETTERS
LA English
DT Article
DE Graphene; bimetallic; cantilevers; strain; thermal expansion;
interfacial shear strength
ID MONOLAYER NANOCOMPOSITE; SUSPENDED GRAPHENE; RESONATORS; MEMBRANES;
PLATFORM; COPPER; FILMS
AB The remarkable mechanical properties of graphene, the thinnest, lightest, and strongest material in existence, are desirable in applications ranging from composite materials to sensors and actuators. Here, we demonstrate that these mechanical properties are strongly affected by the interaction with the substrate onto which graphene is deposited. By measuring the temperature-dependent deflection of graphene/substrate "bimetallic" cantilevers we determine strain, thermal expansion coefficient, and the adhesion force acting on graphene films attached to a substrate. Graphene deposited on silicon nitride (SiNx) is under much larger strain, epsilon(g) similar to 1.5 x 10(-2), compared to graphene on gold (Au), epsilon(g) < 10(-3). The thermal expansion coefficient alpha(g) of graphene attached to SiNx is found to be negative, in the range from (- 5... - 1) x 10(-6)K(-1) and smaller in magnitude than alpha(g) of suspended graphene. We also estimate the interfacial shear strength of the graphene/SiNx interface to be similar to 1 GPa at room temperature.
C1 [Conley, Hiram; Prasai, Dhiraj; Bolotin, Kirill I.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA.
[Lavrik, Nickolay V.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37830 USA.
RP Bolotin, KI (reprint author), Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA.
EM kirill.bolotin@vanderbilt.edu
RI Lavrik, Nickolay/B-5268-2011; Bolotin, Kirill/O-5101-2016
OI Lavrik, Nickolay/0000-0002-9543-5634;
FU Oak Ridge National Laboratory by the Office of Basic Energy Sciences,
U.S. Department of Energy; NSF [DMR-1056859, EPS-1004083]
FX We thank Bin Wang, A.K.M. Newaz, and L.C. Feldman for enlightening
discussions and Vanderbilt Institute of Nanoscale Science and
Engineering for allowing use of their facilities. A portion of this
research was conducted at the Center for Nanophase Materials Sciences,
which is sponsored at Oak Ridge National Laboratory by the Office of
Basic Energy Sciences, U.S. Department of Energy. This research is
supported in part by NSF DMR-1056859 and NSF EPS-1004083.
NR 26
TC 27
Z9 27
U1 9
U2 78
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4748
EP 4752
DI 10.1021/nl202562u
PG 5
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700044
PM 21970515
ER
PT J
AU Viswanatha, R
Brovelli, S
Pandey, A
Crooker, SA
Klimov, VI
AF Viswanatha, Ranjani
Brovelli, Sergio
Pandey, Anshu
Crooker, Scott A.
Klimov, Victor I.
TI Copper-Doped Inverted Core/Shell Nanocrystals with "Permanent" Optically
Active Holes
SO NANO LETTERS
LA English
DT Article
DE Nanocrystal quantum dot; copper doped nanocrystal; ZnSe/CdSe core/shell;
p-type; copper oxidation state
ID DOPING SEMICONDUCTOR NANOCRYSTALS; CDSE QUANTUM DOTS; ZNSE NANOCRYSTALS;
CU; LUMINESCENCE; ELECTRON; AMPLIFICATION; PATHWAYS; EMISSION; CRYSTALS
AB We have developed a new class of colloidal nanocrystals composed of Cu-doped ZnSe cores overcoated with CdSe shells. Via spectroscopic and magneto-optical studies, we conclusively demonstrate that Cu impurities represent paramagnetic +2 species and serve as a source of permanent optically active holes. This implies that the Fermi level is located below the Cu(2+)/Cu(1+) state, that is, in the lower half of the forbidden gap, which is a signature of a p-doped material. It further suggests that the activation of optical emission due to the Cu level requires injection of only an electron without a need for a valence-band hole. This peculiar electron-only emission mechanism is confirmed by experiments in which the titration of the nanocrystals with hole-withdrawing molecules leads to enhancement of Cu-related photoluminescence while simultaneously suppressing the intrinsic, band-edge exciton emission. In addition to containing permanent optically active holes, these newly developed materials show unprecedented emission tunability from near-infrared (1.2 eV) to the blue (3.1 eV) and reduced losses from reabsorption due to a large Stokes shift (up to 0.7 eV). These properties make them very attractive for applications in light-emission and lasing technologies and especially for the realization of novel device concepts such as "zero-threshold" optical gain.
C1 [Viswanatha, Ranjani; Brovelli, Sergio; Pandey, Anshu; Klimov, Victor I.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
[Crooker, Scott A.] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA.
[Pandey, Anshu; Klimov, Victor I.] Los Alamos Natl Lab, Ctr Adv Solar Photophys, Los Alamos, NM 87545 USA.
RP Klimov, VI (reprint author), Los Alamos Natl Lab, Div Chem, POB 1663, Los Alamos, NM 87545 USA.
EM klimov@lanl.gov
OI Brovelli, Sergio/0000-0002-5993-855X; Klimov, Victor/0000-0003-1158-3179
FU Chemical Sciences, Biosciences, and Geosciences Division of the Office
of Basic Energy Sciences (BES), Office of Science, U.S. Department of
Energy (DOE); Center for Advanced Solar Photophysics, an Energy Frontier
Research Center; Office of BES, Office of Science, U.S. DOE
FX R.V. and SAC. acknowledge support by the Chemical Sciences, Biosciences,
and Geosciences Division of the Office of Basic Energy Sciences (BES),
Office of Science, U.S. Department of Energy (DOE). V.I.K is supported
by the Center for Advanced Solar Photophysics, an Energy Frontier
Research Center funded by the Office of BES, Office of Science, U.S.
DOE. S.B. and A.P. are supported by the Los Alamos National Laboratory
Directed Research and Development Program.
NR 36
TC 73
Z9 73
U1 3
U2 99
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4753
EP 4758
DI 10.1021/nl202572c
PG 6
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700045
PM 21942276
ER
PT J
AU Sorger, VJ
Pholchai, N
Cubukcu, E
Oulton, RF
Kolchin, P
Borschel, C
Gnauck, M
Ronning, C
Zhang, X
AF Sorger, Volker J.
Pholchai, Nitipat
Cubukcu, Ertugrul
Oulton, Rupert F.
Kolchin, Pavel
Borschel, Christian
Gnauck, Martin
Ronning, Carsten
Zhang, Xiang
TI Strongly Enhanced Molecular Fluorescence inside a Nanoscale Waveguide
Gap
SO NANO LETTERS
LA English
DT Article
DE Plasmonic; waveguide; nanophotonics; molecular; fluorescence; Purcell
ID SURFACE-PLASMONS; EMISSION
AB We experimentally demonstrate dramatically enhanced light-matter interaction for molecules placed inside the nanometer scale gap of a plasmonic waveguide. We observe spontaneous emission rate enhancements of up to about 60 times due to strong optical localization in two dimensions. This rate enhancement is a nonresonant nature of the plasmonic waveguide under study overcoming the fundamental bandwidth limitation of conventional devices. Moreover, we show that about 85% of molecular emission couples into the waveguide highlighting the dominance of the nanoscale optical mode in competing with quenching processes. Such optics at molecular length scales paves the way toward integrated on-chip photon source, rapid transfer of quantum information, and efficient light extraction for solid-state-lighting devices.
C1 [Sorger, Volker J.; Pholchai, Nitipat; Cubukcu, Ertugrul; Oulton, Rupert F.; Kolchin, Pavel; Zhang, Xiang] Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr, Berkeley, CA 94720 USA.
[Zhang, Xiang] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Borschel, Christian; Gnauck, Martin; Ronning, Carsten] Univ Jena, Inst Solid State Phys, D-07743 Jena, Germany.
RP Zhang, X (reprint author), Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr, 3112 Etcheverry Hall, Berkeley, CA 94720 USA.
EM xiang@berkeley.edu
RI Cubukcu, Ertugrul/D-5007-2012; Zhang, Xiang/F-6905-2011; Ronning,
Carsten/I-9133-2016
OI Ronning, Carsten/0000-0003-2667-0611
FU National Science Foundation (NSF) Nanoscale Science and Engineering
Center (SINAM) [CMMI-0751621]
FX We acknowledge support from the National Science Foundation (NSF)
Nanoscale Science and Engineering Center (SINAM, CMMI-0751621).
NR 24
TC 53
Z9 53
U1 5
U2 45
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4907
EP 4911
DI 10.1021/nl202825s
PG 5
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700071
PM 21978206
ER
PT J
AU Lohmuller, T
Triffo, S
O'Donoghue, GP
Xu, Q
Coyle, MP
Groves, JT
AF Lohmueller, Theobald
Triffo, Sara
O'Donoghue, Geoff P.
Xu, Qian
Coyle, Michael P.
Groves, Jay T.
TI Supported Membranes Embedded with Fixed Arrays of Gold Nanoparticles
SO NANO LETTERS
LA English
DT Article
DE Nanoparticles; supported lipid bilayers; nanoparticle labeling; FCS;
PALM
ID PHOTOACTIVATION LOCALIZATION MICROSCOPY; FLUORESCENCE CORRELATION
SPECTROSCOPY; IMMUNOLOGICAL SYNAPSE; LIPID-BILAYERS;
SIGNAL-TRANSDUCTION; CELL-ADHESION; T-CELLS; SURFACES; PROTEIN; DYNAMICS
AB We present a supported membrane platform consisting of a fluid lipid bilayer membrane embedded with a fixed array of gold nanoparticles. The system is realized by preforming a hexagonal array of gold nanoparticles (similar to 5-7 nm) with controlled spacing (similar to 50-150 nm) fixed to a silica or glass substrate by block copolymer lithography. Subsequently, a supported membrane is assembled over the intervening bare substrate. Proteins or other ligands can be associated with the fluid lipid component, the fixed nanoparticle component, or both, providing a hybrid interface consisting of mobile and immobile components with controlled geometry. We test different biochemical coupling strategies to bind individual proteins to the particles surrounded by a fluid lipid membrane. The coupling efficiency to nanoparticles and the influence of nanoparticle arrays on the surrounding membrane integrity are characterized by fluorescence imaging, correlation spectroscopy, and super-resolution fluorescence microscopy. Finally, the functionality of this system for live cell experiments is tested using the ephrin-A1-EphA2 juxtacrine signaling interaction in human breast epithelial cells.
C1 [Lohmueller, Theobald; Triffo, Sara; O'Donoghue, Geoff P.; Coyle, Michael P.; Groves, Jay T.] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
[Lohmueller, Theobald; Triffo, Sara; O'Donoghue, Geoff P.; Coyle, Michael P.; Groves, Jay T.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Xu, Qian; Groves, Jay T.] Univ Calif Berkeley, Biophys Grad Grp, Berkeley, CA 94720 USA.
[Lohmueller, Theobald; Coyle, Michael P.; Groves, Jay T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Lohmueller, Theobald; Coyle, Michael P.; Groves, Jay T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Groves, Jay T.] Natl Univ Singapore, Mechanobiol Inst, Singapore 117548, Singapore.
RP Groves, JT (reprint author), Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
EM jtgroves@lbl.gov
RI Coyle, Michael/G-2880-2013; Lohmueller, Theobald/J-2754-2014
OI Lohmueller, Theobald/0000-0003-2699-7067
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering; Molecular Foundry, Lawrence Berkeley
National Laboratory; Deutsche Forschungsgemeinschaft (DFG)
FX Research supported by the U.S. Department of Energy, Office of Basic
Energy Sciences, Division of Materials Sciences and Engineering and the
Molecular Foundry, Lawrence Berkeley National Laboratory. The authors
acknowledge Adam W. Smith, Hector Huang, Nina Hartman, Boryana Manz, and
Pradeep Nair for fruitful discussions and experimental reagents. The
authors would like to thank Sam Hess for providing his PALM analysis
code. Theobald Lohmuller was supported by a postdoc fellowship from the
Deutsche Forschungsgemeinschaft (DFG).
NR 54
TC 32
Z9 32
U1 3
U2 69
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4912
EP 4918
DI 10.1021/nl202847t
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700072
PM 21967595
ER
PT J
AU Ricco, M
Pontiroli, D
Mazzani, M
Choucair, M
Stride, JA
Yazyev, OV
AF Ricco, Mauro
Pontiroli, Daniele
Mazzani, Marcello
Choucair, Mohammad
Stride, John A.
Yazyev, Oleg V.
TI Muons Probe Strong Hydrogen Interactions with Defective Graphene
SO NANO LETTERS
LA English
DT Article
DE Graphene; muon spectroscopy; defects in graphene; carbon magnetism;
hydrogen storage
ID ROOM-TEMPERATURE FERROMAGNETISM; GRAPHITE; OXIDE; STORAGE
AB Here, we present the first muon spectroscopy investigation of graphene, focused on chemically produced, gram-scale samples, appropriate to the large muon penetration depth. We have observed an evident muon spin precession, usually the fingerprint of magnetic order, but here demonstrated to originate from muon-hydrogen nuclear dipolar interactions. This is attributed to the formation of CHMu (analogous to CH2) groups, stable up to 1250 K where the signal still persists. The relatively large signal amplitude demonstrates an extraordinary hydrogen capture cross section of CH units. These results also rule out the formation of ferromagnetic or antiferromagnetic order in chemically synthesized graphene samples.
C1 [Ricco, Mauro; Pontiroli, Daniele; Mazzani, Marcello] Univ Parma, Dipartimento Fis, I-43100 Parma, Italy.
[Choucair, Mohammad; Stride, John A.] Univ New S Wales, Sch Chem, Sydney, NSW 2052, Australia.
[Stride, John A.] Australian Nucl Sci & Technol Org, Bragg Inst, Menai, NSW 2234, Australia.
[Yazyev, Oleg V.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Yazyev, Oleg V.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Yazyev, Oleg V.] Ecole Polytech Fed Lausanne, Inst Theoret Phys, CH-1015 Lausanne, Switzerland.
RP Ricco, M (reprint author), Univ Parma, Dipartimento Fis, Via G Usberti 7-A, I-43100 Parma, Italy.
EM Mauro.Ricco@fis.unipr.it
RI Yazyev, Oleg/A-4073-2008; Choucair, Mohammad/I-8196-2012; Mazzani,
Marcello/A-8192-2013; Pontiroli, Daniele/A-4543-2017; Ricco,
Mauro/D-9376-2017
OI Yazyev, Oleg/0000-0001-7281-3199; Mazzani, Marcello/0000-0002-5133-4479;
Pontiroli, Daniele/0000-0002-9990-539X; Ricco, Mauro/0000-0002-6879-2687
FU EC; Swiss National Science Foundation [CRSII2-130509, PBELP2-123086,
PP002-133552]
FX We thank the ISIS Laboratory for provision of beam time and S. Giblin
and I. McKenzie for support during the mu SR experiments. M.R., D.P.,
and M.M. acknowledge financial support from the EC FP6-NEST Ferrocarbon
project and from the Swiss National Science Foundation HyCarBo project
(Grant No. CRSII2-130509). O.V.Y. acknowledges financial support of the
Swiss National Science Foundation (Grants PBELP2-123086 and
PP002-133552).
NR 25
TC 27
Z9 27
U1 1
U2 34
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4919
EP 4922
DI 10.1021/nl202866q
PG 4
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700073
PM 21988328
ER
PT J
AU Smith, ER
Luther, JM
Johnson, JC
AF Smith, E. Ryan
Luther, Joseph M.
Johnson, Justin C.
TI Ultrafast Electronic Delocalization in CdSe/CdS Quantum Rod
Heterostructures
SO NANO LETTERS
LA English
DT Article
DE Nanorods; heterostructures; exciton wave function; polarized transient
grating
ID EXCITON FINE-STRUCTURE; SEMICONDUCTOR NANOCRYSTALS; NANOROD
HETEROSTRUCTURES; RELAXATION DYNAMICS; SPIN RELAXATION; ENERGY-TRANSFER;
DOTS; PHOTOLUMINESCENCE; SPECTROSCOPY; TRANSITIONS
AB Femtosecond cross-polarized transient grating (CPTG) and polarization anisotropy were used to probe the extent of electronic delocalization in CdSe/CdS quantum rod heterostructures (QRH) with a "dot-in-rod" geometry. The alignment of the bulk valence and conduction band edges of CdSe and CdS suggest a "type I" band configuration, leading to localization of both the electron and hole on the CdSe seed, but size quantization effects make the distinction less clear. Photoexcited electrons in 2.1 and 2.9 nm diameter structures have considerable excess kinetic energy above the CdS conduction band and show clear evidence of electron delocalization into the surrounding shell. However, the dependence of the CPTG decay rate on aspect ratio for 2.9 nm seeded QRHs is minimal, suggesting that the delocalization is mostly isotropic (i.e., not preferentially along the rod length). The rates for the 2.1 and 2.9 nm QRHs fall in line with expected trends based on effective exciton size. The 4.2 nm diameter structures also lack any rod length dependence of the CPTG decay and instead exhibit a biexponential decay that is indicative of coupled pathways for fine structure relaxation, likely due to anisotropic interfacial strain. CPTG is found to serve as a unique tool for determining charge transfer and delocalization in nanoheterostructures, which can rarely be predicted accurately from examination of bulk band offsets.
C1 [Smith, E. Ryan; Luther, Joseph M.; Johnson, Justin C.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Johnson, JC (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Chemical Sciences, Biosciences, and Geosciences [DE-AC36-08GO28308];
National Renewable Energy Laboratory
FX We thank Andrew Norman for high-resolution TEM images of our samples.
This work was supported by the U.S. Department of Energy, Office of
Basic Energy Sciences, Division of Chemical Sciences, Biosciences, and
Geosciences under the contract no. DE-AC36-08GO28308 with the National
Renewable Energy Laboratory.
NR 36
TC 26
Z9 26
U1 3
U2 49
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4923
EP 4931
DI 10.1021/nl202869z
PG 9
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700074
PM 22011256
ER
PT J
AU Dai, X
Dayeh, SA
Veeramuthu, V
Larrue, A
Wang, J
Su, HB
Soci, C
AF Dai, Xing
Dayeh, Shadi A.
Veeramuthu, Vaithianathan
Larrue, Alexandre
Wang, Jian
Su, Haibin
Soci, Cesare
TI Tailoring the Vapor-Liquid-Solid Growth toward the Self-Assembly of GaAs
Nanowire Junctions
SO NANO LETTERS
LA English
DT Article
DE Vapor-liquid-solid growth mechanism; monolithic nanowire junctions;
transmission electron microscopy; polar interactions;
electrostatic-mechanical modeling; nanowire arrays
ID SCANNING-TUNNELING-MICROSCOPY; FIELD-EFFECT TRANSISTORS; FUNCTIONAL
NANOSYSTEMS; ARRAYS; DEPOSITION; LITHOGRAPHY
AB New insights into understanding and controlling the intriguing phenomena of spontaneous merging (kissing) and the self-assembly of monolithic Y- and T-junctions is demonstrated in the metal-organic chemical vapor deposition growth of GaAs nanowires. High-resolution transmission electron microscopy for determining polar facets was coupled to electrostatic-mechanical modeling and position-controlled synthesis to identify nanowire diameter, length, and pitch, leading to junction formation. When nanowire patterns are designed so that the electrostatic energy resulting from the interaction of polar surfaces exceeds the mechanical energy required to bend the nanowires to the point of contact, their fusion can lead to the self-assembly of monolithic junctions. Understanding and controlling this phenomenon is a great asset for the realization of dense arrays of vertical nanowire devices and opens up new ways toward the large scale integration of nanowire quantum junctions or nanowire intracellular probes.
C1 [Dai, Xing; Veeramuthu, Vaithianathan; Soci, Cesare] Nanyang Technol Univ, Div Phys & Appl Phys, Singapore 637371, Singapore.
[Dayeh, Shadi A.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
[Larrue, Alexandre; Su, Haibin; Soci, Cesare] CINTRA CNRS NTU THALES, UMI 3288, Singapore 637553, Singapore.
[Su, Haibin] Nanyang Technol Univ, Div Mat Sci, Singapore 639798, Singapore.
[Soci, Cesare] Nanyang Technol Univ, Div Microelect, Singapore 639798, Singapore.
RP Soci, C (reprint author), Nanyang Technol Univ, Div Phys & Appl Phys, 21 Nanyang Link, Singapore 637371, Singapore.
EM csoci@ntu.edu.sg
RI Soci, Cesare/A-8355-2008; Dayeh, Shadi/H-5621-2012; CINTRA,
UMI3288/J-9652-2012; Wang, Jian/F-2669-2012;
OI Soci, Cesare/0000-0002-0149-9128; CINTRA, UMI3288/0000-0003-3579-6558;
Wang, Jian/0000-0001-5130-300X; Su, Haibin/0000-0001-9760-6567
FU NTU [M58110065, M58110092]; French Embassy in Singapore [2.04.10]; U.S.
Department of Energy, Office of Basic Energy Sciences user facility at
Los Alamos National Laboratory [DE-AC52-06NA25396]
FX The authors are grateful to Prof. Tang Xiaohong, Dr. Liu Hongbo, and Dr.
Haryono Hartono for their assistance with MOCVD operation and for the
useful discussions, Prof. Chen Hongyu for the preliminary discussions
regarding this work, and Ms. Gwenaelle Vest for assistance with data
analysis. Research was supported by the NTU NAP startup grant M58110065,
the Funding of Initiatives in Support of NTU 2015 (M58110092), and the
MERLION Programme 2010 of the French Embassy in Singapore (dossier no.
2.04.10). Part of this research was conducted at the Center for
Integrated Nanotechnologies (CINT), a U.S. Department of Energy, Office
of Basic Energy Sciences user facility at Los Alamos National Laboratory
(contract DE-AC52-06NA25396).
NR 44
TC 15
Z9 16
U1 2
U2 36
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 4947
EP 4952
DI 10.1021/nl202888e
PG 6
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700077
PM 21967168
ER
PT J
AU Takei, K
Fang, H
Kumar, SB
Kapadia, R
Gao, Q
Madsen, M
Kim, HS
Liu, CH
Chueh, YL
Plis, E
Krishna, S
Bechtel, HA
Guo, J
Javey, A
AF Takei, Kuniharu
Fang, Hui
Kumar, S. Bala
Kapadia, Rehan
Gao, Qun
Madsen, Morten
Kim, Ha Sul
Liu, Chin-Hung
Chueh, Yu-Lun
Plis, Elena
Krishna, Sanjay
Bechtel, Hans A.
Guo, Jing
Javey, Ali
TI Quantum Confinement Effects in Nanoscale-Thickness InAs Membranes
SO NANO LETTERS
LA English
DT Article
DE InAs-on-insulator; III-V transistors; quantum membranes; two-dimensional
ID SEMICONDUCTOR; TRANSISTORS; RESISTANCE; SURFACES; GRAPHENE; ALLOYS
AB Nanoscale size effects drastically alter the fundamental properties of semiconductors. Here, we investigate the dominant role of quantum confinement in the field-effect device properties of free-standing InAs nanomembranes with varied thicknesses of 5-50 nm, First, optical absorption studies are performed by transferring InAs "quantum membranes" (QMs) onto transparent substrates; from which the quantized sub-bands are directly visualized. These sub-bands determine the contact resistance of the system with the experimental values consistent with the expected number of quantum transport modes available for a given thickness. Finally, the effective electron mobility of InAs QMs is shown to exhibit anomalous field and thickness dependences that are in distinct contrast to the conventional MOSFET models, arising from the strong quantum confinement of carriers. The results provide an important advance toward establishing the fundamental device physics of two-dimensional semiconductors.
C1 [Takei, Kuniharu; Fang, Hui; Kapadia, Rehan; Madsen, Morten; Kim, Ha Sul; Javey, Ali] Univ Calif Berkeley, Berkeley Sensor & Actuator Ctr, Berkeley, CA 94720 USA.
[Takei, Kuniharu; Fang, Hui; Kapadia, Rehan; Madsen, Morten; Kim, Ha Sul; Javey, Ali] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Kumar, S. Bala; Gao, Qun; Guo, Jing] Univ Florida, Gainesville, FL 32611 USA.
[Liu, Chin-Hung; Chueh, Yu-Lun] Natl Tsing Hua Univ, Hsinchu 30013, Taiwan.
[Plis, Elena; Krishna, Sanjay] Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87106 USA.
[Bechtel, Hans A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Javey, A (reprint author), Univ Calif Berkeley, Berkeley Sensor & Actuator Ctr, Berkeley, CA 94720 USA.
EM ajavey@eecs.berkeley.edu
RI Liu, Chin-Hung/M-1882-2013; Fang, Hui/I-8973-2014; kumar, s.
bala/E-4615-2011; Madsen, Morten/K-8597-2012; Gao, Qun/C-6960-2014;
Javey, Ali/B-4818-2013; Kapadia, Rehan/B-4100-2013; Chueh,
Yu-Lun/E-2053-2013;
OI Fang, Hui/0000-0002-4651-9786; Kapadia, Rehan/0000-0002-7611-0551;
Chueh, Yu-Lun/0000-0002-0155-9987; Madsen, Morten/0000-0001-6503-0479
FU FCRP/MSD Focus Center; NSF E3S Center; NSF COINS; Office of Science,
Office of Basic Energy Sciences, Materials Sciences and Engineering
Division, of the U.S. Department of Energy [DE-AC02-05CH11231]; Sloan
Research Fellowship; NSF; World Class University; National Science
Council, Taiwan [NSC 98-2112-M-007-025-MY3]; Danish Research Council for
Technology and Production Sciences; SRC
FX The device characterization part of this work was funded by FCRP/MSD
Focus Center, NSF E3S Center, and NSF COINS. The materials
characterization was supported by the Director, Office of Science,
Office of Basic Energy Sciences, Materials Sciences and Engineering
Division, of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231. A.J. acknowledges a Sloan Research Fellowship, NSF
CAREER Award, and support from the World Class University program at
Sunchon National University. Y.-L.C. acknowledges support from the
National Science Council, Taiwan, through Grant No. NSC
98-2112-M-007-025-MY3. R.K. and M.M. acknowledge an NSF Graduate
Fellowship and a postdoctoral fellowship from the Danish Research
Council for Technology and Production Sciences, respectively. J.G.
acknowledges support form NSF and SRC.
NR 29
TC 47
Z9 47
U1 6
U2 38
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 5008
EP 5012
DI 10.1021/nl2030322
PG 5
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700087
PM 22007924
ER
PT J
AU Xiao, J
Mei, DH
Li, XL
Xu, W
Wang, DY
Graff, GL
Bennett, WD
Nie, ZM
Saraf, LV
Aksay, IA
Liu, J
Zhang, JG
AF Xiao, Jie
Mei, Donghai
Li, Xiaolin
Xu, Wu
Wang, Deyu
Graff, Gordon L.
Bennett, Wendy D.
Nie, Zimin
Saraf, Laxmikant V.
Aksay, Ilhan A.
Liu, Jun
Zhang, Ji-Guang
TI Hierarchically Porous Graphene as a Lithium-Air Battery Electrode
SO NANO LETTERS
LA English
DT Article
DE Li-air battery; graphene; specific energy; Li2O2; O-2 reduction
ID TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; LI/AIR BATTERIES;
FUNCTIONALIZED GRAPHENE; CATHODE MATERIALS; GRAPHITE OXIDE; BASIS-SET;
OPTIMIZATION; PERFORMANCE; ADSORPTION
AB The lithium-ir battery is one of the most promising technologies among various electrochemical energy storage systems. We demonstrate that a novel air electrode consisting of an unusual hierarchical arrangement of functionalized graphene sheets (with no catalyst) delivers an exceptionally high capacity of 15000 mAh/g in lithium-O-2 batteries which is the highest value ever reported in this field. This excellent performance is attributed to the unique bimodal porous structure of the electrode which consists of microporous channels facilitating rapid O-2 diffusion while the highly connected nanoscale pores provide a high density of reactive sites for Li-O-2 reactions. Further, we show that the defects and functional groups on graphene favor the formation of isolated nanosized Li2O2 particles and help prevent air blocking in the air electrode. The hierarchically ordered porous structure in bulk graphene enables its practical applications by promoting accessibility to most graphene sheets in this structure.
C1 [Xiao, Jie; Mei, Donghai; Li, Xiaolin; Xu, Wu; Wang, Deyu; Graff, Gordon L.; Bennett, Wendy D.; Nie, Zimin; Saraf, Laxmikant V.; Liu, Jun; Zhang, Ji-Guang] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Aksay, Ilhan A.] Princeton Univ, Dept Chem & Biol Engn, Princeton, NJ 08544 USA.
RP Xiao, J (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM jiguang.zhang@pnnl.gov; jun.liu@pnnl.gov; jie.xiao@pnnl.gov
RI Mei, Donghai/D-3251-2011; Aksay, Ilhan/B-9281-2008; Mei,
Donghai/A-2115-2012; Deyu, Wang/J-9496-2014;
OI Mei, Donghai/0000-0002-0286-4182; Xu, Wu/0000-0002-2685-8684
FU PNNL; Department of Energy (DOE) Office of Biological and Environmental
Research; DOE Office of Basic Energy Sciences, Division of Materials
Sciences and Engineering [KC020105-FWP12152]; ARO/MURI
[W911NF-09-1-0476]
FX The authors thank L. Kovarik and C. M. Wang of Pacific Northwest
National Laboratory (PNNL) for the TEM characterization. Funding from
the Laboratory Directed Research and Development Program at PNNL is also
greatly appreciated by the authors. The TEM work was performed at the
Environmental Molecular Sciences Laboratory, a national scientific user
facility sponsored by the Department of Energy (DOE) Office of
Biological and Environmental Research and located at PNNL. The DOE
Office of Basic Energy Sciences, Division of Materials Sciences and
Engineering, also provided support under Award KC020105-FWP12152 for the
modeling and understanding of the structure of the materials. The
computing time was made available through a Computational Catalysis
Grand Challenge project (gc34000) and the National Energy Research
Scientific Computing Center (NERSC). I.A.A. also acknowledges support
from ARO/MURI Grant No. W911NF-09-1-0476.
NR 43
TC 476
Z9 488
U1 78
U2 756
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD NOV
PY 2011
VL 11
IS 11
BP 5071
EP 5078
DI 10.1021/nl203332e
PG 8
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 843MA
UT WOS:000296674700097
PM 21985448
ER
PT J
AU Ritchie, RO
AF Ritchie, Robert O.
TI The conflicts between strength and toughness
SO NATURE MATERIALS
LA English
DT Article
ID HUMAN CORTICAL BONE; DEFORMATION MECHANISMS; FRACTURE; NACRE;
COMPOSITES; CERAMICS; BEHAVIOR; CRACKS; GLASS
AB The attainment of both strength and toughness is a vital requirement for most structural materials; unfortunately these properties are generally mutually exclusive. Although the quest continues for stronger and harder materials, these have little to no use as bulk structural materials without appropriate fracture resistance. It is the lower-strength, and hence higher-toughness, materials that find use for most safety-critical applications where premature or, worse still, catastrophic fracture is unacceptable. For these reasons, the development of strong and tough (damage-tolerant) materials has traditionally been an exercise in compromise between hardness versus ductility. Drawing examples from metallic glasses, natural and biological materials, and structural and biomimetic ceramics, we examine some of the newer strategies in dealing with this conflict. Specifically, we focus on the interplay between the mechanisms that individually contribute to strength and toughness, noting that these phenomena can originate from very different lengthscales in a material's structural architecture. We show how these new and natural materials can defeat the conflict of strength versus toughness and achieve unprecedented levels of damage tolerance within their respective material classes.
C1 [Ritchie, Robert O.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Ritchie, Robert O.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
RP Ritchie, RO (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM RORitchie@lbl.gov
RI Ritchie, Robert/A-8066-2008
OI Ritchie, Robert/0000-0002-0501-6998
FU Office of Science, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering, of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX This work was supported by the Director, Office of Science, Office of
Basic Energy Sciences, Division of Materials Sciences and Engineering,
of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
Particular thanks to A. P. Tomsia and E. Launey for their help with this
paper.
NR 26
TC 388
Z9 394
U1 59
U2 457
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1476-1122
J9 NAT MATER
JI Nat. Mater.
PD NOV
PY 2011
VL 10
IS 11
BP 817
EP 822
DI 10.1038/NMAT3115
PG 6
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Applied; Physics, Condensed Matter
SC Chemistry; Materials Science; Physics
GA 841UR
UT WOS:000296540900008
PM 22020005
ER
PT J
AU Watari, M
McKendry, RA
Vogtli, M
Aeppli, G
Soh, YA
Shi, XW
Xiong, G
Huang, XJ
Harder, R
Robinson, IK
AF Watari, Moyu
McKendry, Rachel A.
Voegtli, Manuel
Aeppli, Gabriel
Soh, Yeong-Ah
Shi, Xiaowen
Xiong, Gang
Huang, Xiaojing
Harder, Ross
Robinson, Ian K.
TI Differential stress induced by thiol adsorption on facetted nanocrystals
SO NATURE MATERIALS
LA English
DT Article
ID SELF-ASSEMBLED MONOLAYERS; SURFACE STRESS; CANTILEVER ARRAYS; PHASE
RETRIEVAL; GOLD; BINDING; STRAIN
AB Polycrystalline gold films coated with thiol-based self-assembled monolayers (SAM) form the basis of a wide range of nanomechanical sensor platforms(1). The detection of adsorbates with such devices relies on the transmission of mechanical forces, which is mediated by chemically derived stress at the organic-inorganic interface. Here, we show that the structure of a single 300-nm-diameter facetted gold nanocrystal, measured with coherent X-ray diffraction, changes profoundly after the adsorption of one of the simplest SAM-forming organic molecules. On self-assembly of propane thiol, the crystal's flat facets contract radially inwards relative to its spherical regions. Finite-element modelling indicates that this geometry change requires large stresses that are comparable to those observed in cantilever measurements. The large magnitude and slow kinetics of the contraction can be explained by an intermixed gold-sulphur layer that has recently been identified crystallographically(2). Our results illustrate the importance of crystal edges and grain boundaries in interface chemistry and have broad implications for the application of thiol-based SAMs, ranging from nanomechanical sensors to coating technologies.
C1 [Watari, Moyu; McKendry, Rachel A.; Voegtli, Manuel; Aeppli, Gabriel; Shi, Xiaowen; Xiong, Gang; Huang, Xiaojing; Robinson, Ian K.] UCL, London Ctr Nanotechnol, London WC1E 6BT, England.
[Soh, Yeong-Ah] Univ London Imperial Coll Sci Technol & Med, London Ctr Nanotechnol, London SW7 2AZ, England.
[Harder, Ross] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Watari, M (reprint author), UCL, London Ctr Nanotechnol, Mortimer St, London WC1E 6BT, England.
EM i.robinson@ucl.ac.uk
RI Huang, Xiaojing/K-3075-2012
OI Huang, Xiaojing/0000-0001-6034-5893
FU European Research Council; UK Engineering and Physical Sciences Research
Council
FX Work supported by the 'nanosculpture' Advanced Grant from the European
Research Council, a Science and Innovation Award for Nanometrology and a
Nanotechnology 'Grand Challenge in Healthcare' award from the UK
Engineering and Physical Sciences Research Council. Measurements were
carried out at APS, which is operated by the US Department of Energy.
NR 30
TC 34
Z9 34
U1 4
U2 56
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1476-1122
J9 NAT MATER
JI Nat. Mater.
PD NOV
PY 2011
VL 10
IS 11
BP 862
EP 866
DI 10.1038/NMAT3124
PG 5
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Applied; Physics, Condensed Matter
SC Chemistry; Materials Science; Physics
GA 841UR
UT WOS:000296540900016
PM 21946612
ER
PT J
AU Long, BW
van Kolck, U
AF Long, Bingwei
van Kolck, U.
TI The role of the Roper in chiral perturbation theory
SO NUCLEAR PHYSICS A
LA English
DT Article
DE Chiral perturbation theory; Effective field theory; The Roper resonance
ID PION-NUCLEON SCATTERING; FIELD-THEORY; LAGRANGIANS; FORCES; MASS;
DELTA(1232)-RESONANCE; RESONANCES; DYNAMICS; SYMMETRY
AB We include the Roper excitation of the nucleon in a version of heavy-baryon chiral perturbation theory recently developed for energies around the delta resonance. We find significant improvement in the P(11) channel. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Long, Bingwei] EBAC, Jefferson Lab, Newport News, VA 23606 USA.
[Long, Bingwei] European Ctr Theoret Studies Nucl Phys & Related, I-38123 Villazzano, TN, Italy.
[van Kolck, U.] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA.
[van Kolck, U.] Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, Brazil.
RP Long, BW (reprint author), EBAC, Jefferson Lab, 12000 Jefferson Ave,Suite 1, Newport News, VA 23606 USA.
EM bingwei@jlab.org
FU US DOE [DE-AC05-06OR23177, DE-FG02-04ER41338]
FX We thank Silas Beane for useful comments. We are grateful to the
following institutions for hospitality while this work was being carried
out: the Kernfysisch Versneller Instituut at Rijk-suniversiteit
Groningen (UvK), the National Institute for Nuclear Theory at the
University of Washington (BwL, UvK), and the University of Arizona
(BwL). This work was supported by the US DOE under contracts
DE-AC05-06OR23177 (BwL) and DE-FG02-04ER41338 (UvK). This work is
coauthored by Jefferson Science Associates, LLC under US DOE Contract
No. DE-AC05-06OR23177
NR 57
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD NOV
PY 2011
VL 870-71
BP 72
EP 82
DI 10.1016/j.nuclphysa.2011.09.002
PG 11
WC Physics, Nuclear
SC Physics
GA 847DA
UT WOS:000296950900005
ER
PT J
AU Ponsoda, JJMI
Ye, CG
Koplow, JP
Soderlund, MJ
Koponen, JJ
Honkanen, S
AF Montiel i Ponsoda, Joan J.
Ye, Changgeng
Koplow, Jeffrey P.
Soderlund, Mikko J.
Koponen, Joona J.
Honkanen, Seppo
TI Analysis of temperature dependence of photodarkening in ytterbium-doped
fibers
SO OPTICAL ENGINEERING
LA English
DT Article
DE fiber lasers; rare-earth-doped materials; ytterbium; photodarkening;
thermal effects
ID SILICA FIBERS; POWER; LASERS
AB We examine the temperature dependence of photodarkening in ytterbium-doped silica fibers. A sequence of consecutive photodarkening experiments are performed over the same fiber sample, which shows good repeatability with no apparent changes in the glass structure. We find that during infrared irradiation, the level of saturation of the losses can be determined by the fiber core temperature, independent of the previous state of photodarkening losses and fiber temperature, and also at low temperatures where the thermal bleaching is not activated. We observe that variations in the fiber core temperature, induced by pump absorption due to photodarkening, affect the inversion level and photodarkening processes. These effects in turn cause a discrepancy in determining the ion dependence. We highlight the importance of performing the experiments under isothermal conditions and we propose a new approach to control the fiber temperature at room temperature and at elevated temperatures. The approach is based on an isothermal Galinstan bath. The appropriateness of this method is shown by comparing it to different cooling methods, and the results are supported by simulations. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3640856]
C1 [Montiel i Ponsoda, Joan J.; Ye, Changgeng; Honkanen, Seppo] Aalto Univ, Dept Micro & Nanosci, FIN-02150 Espoo, Finland.
[Koplow, Jeffrey P.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Soderlund, Mikko J.] Beneq Oy, FIN-01510 Vantaa, Finland.
[Koponen, Joona J.] NLIGHT Corp, FIN-08500 Lohja, Finland.
[Honkanen, Seppo] Univ Eastern Finland, Dept Math & Phys, FIN-80101 Joensuu, Finland.
RP Ponsoda, JJMI (reprint author), Aalto Univ, Dept Micro & Nanosci, Tietotie 3, FIN-02150 Espoo, Finland.
EM joan.montiel@aalto.fi
FU Finnish Funding Agency for Technology and Innovation (TEKES); nLIGHT;
Beneq
FX Finnish Funding Agency for Technology and Innovation (TEKES), nLIGHT,
and Beneq are gratefully acknowledged for their financial support. We
also thank Ari Tervonen for helpful discussions.
NR 19
TC 4
Z9 4
U1 1
U2 9
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 0091-3286
J9 OPT ENG
JI Opt. Eng.
PD NOV
PY 2011
VL 50
IS 11
AR 111610
DI 10.1117/1.3640856
PG 9
WC Optics
SC Optics
GA 847KK
UT WOS:000296971600014
ER
PT J
AU Soh, DBS
Koplow, JP
AF Soh, Daniel B. S.
Koplow, Jeffrey P.
TI Analysis of spectral broadening of incoherent light in optical fibers
with nonzero dispersion
SO OPTICAL ENGINEERING
LA English
DT Article
DE nonlinear optics; wave mixing
ID MULTIPLE 4-WAVE-MIXING PROCESSES; SINGLE-MODE FIBER; LASERS; TURBULENCE
AB Fiber dispersion plays a significant role in spectral broadening of incoherent continuous-wave light. We develop a self-consistent stochastic model for spectral broadening of incoherent continuous-wave light through nonlinear wave mixing and apply this model to numerical simulations of spectral broadening in a continuous-wave fiber Raman laser. The results of these numerical simulations agree very well with carefully conducted laboratory measurements. Under a wide range of operating conditions, these numerical simulations also exhibit striking features, such as damped oscillatory spectral broadening (during the initial stages of propagation) and eventual convergence to a stationary, steady-state spectral distribution at sufficiently long propagation distances. We analyze the important role of fiber dispersion in such phenomena. We also derive an analytical rate equation expression for spectral broadening, whose numerical evaluation is far less computationally intensive than the fully stochastic simulation, and a mathematical criterion for the applicability of this analytical expression. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3609811]
C1 [Soh, Daniel B. S.; Koplow, Jeffrey P.] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Soh, DBS (reprint author), Sandia Natl Labs, 7011 East Ave, Livermore, CA 94550 USA.
EM dbsoh@sandia.gov
FU Laboratory Directed Research and Development, Sandia National
Laboratories, U.S. Department of Energy [DE-AC04-94AL85000]
FX The authors thank Roger L. Farrow for valuable discussions. We also
thank Sean W. Moore and Kevin L. Schroder for their various support.
This research was supported by Laboratory Directed Research and
Development, Sandia National Laboratories, U.S. Department of Energy,
under Contract No. DE-AC04-94AL85000.
NR 21
TC 2
Z9 3
U1 0
U2 5
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 0091-3286
J9 OPT ENG
JI Opt. Eng.
PD NOV
PY 2011
VL 50
IS 11
AR 111602
DI 10.1117/1.3609811
PG 16
WC Optics
SC Optics
GA 847KK
UT WOS:000296971600006
ER
PT J
AU Armstead, WM
Ganguly, K
Riley, J
Kiessling, JW
Cines, DB
Higazi, AAR
Zaitsev, S
Muzykantov, VR
AF Armstead, William M.
Ganguly, Kumkum
Riley, John
Kiessling, J. Willis
Cines, Douglas B.
Higazi, Abd A. R.
Zaitsev, Sergei
Muzykantov, Vladimir R.
TI Red blood cell-coupled tissue plasminogen activator prevents impairment
of cerebral vasodilatory responses through inhibition of
c-Jun-N-terminal kinase and potentiation of p38 mitogen-activated
protein kinase after cerebral photothrombosis in the newborn pig
SO PEDIATRIC CRITICAL CARE MEDICINE
LA English
DT Article
DE cerebral hemodynamics; pediatric; plasminogen activators; signal
transduction; stroke
ID PROPHYLACTIC FIBRINOLYSIS; ISCHEMIC-STROKE; INFANT PIGLETS; ERK MAPK;
HYPOXIA/ISCHEMIA; INJURY; BRAIN; CEREBROVASODILATION;
THROMBOPROPHYLAXIS; THROMBOLYSIS
AB Objective: Pediatric ischemic stroke is a poorly understood, yet clinically important, problem. The sole approved treatment for acute stroke is tissue-type plasminogen activator. However, tissue plasminogen activator vasoactivity aggravates hypoxia/ischemia-induced impairment of cerebrovasodilation in response to hypercapnia and hypotension in newborn pigs. Mitogen-activated protein kinase (a family of 3 kinases, extracellular signal-related kinase, p38, and c-Jun-N-terminal kinase) is upregulated after hypoxia/ischemia. Coupling of tissue plasminogen activator to red blood cells prevented hypoxia/ischemia-induced impairment of dilation and suppressed extracellular signal-related kinase mitogen-activated protein kinase activation. This study investigated the differential roles of mitogen-activated protein kinase isoforms in the effects of red blood cells-tissue plasminogen activator on cerebrovasodilation in a translationally relevant injury model, photothrombosis.
Design: Prospective, randomized animal study.
Setting: University laboratory.
Subjects: Newborn (1- to 5-day-old) pigs.
Interventions: Cerebral blood flow and pial artery diameter were determined before and after photothrombotic injury (laser 532 nm and erythrosine B) was produced in piglets equipped with a closed cranial window. Cerebral blood flow extracellular signal-related kinase, p38, and c-Jun-N-terminal kinase mitogen-activated protein kinase were determined by enzyme-linked immunosorbent assay.
Measurements and Main Results: Tissue plasminogen activator and red blood cells-tissue plasminogen activator alleviated reduction of cerebral blood flow after photothrombotic injury. Cerebrovasodilation was blunted by photothrombotic injury, reversed to vasoconstriction by tissue plasminogen activator, but dilation was maintained by red blood cells-tissue plasminogen activator. Cerebral blood flow c-Jun-N-terminal kinase and p38 mitogen-activated protein kinase but not extracellular signal-related kinase mitogen-activated protein kinase was elevated by photothrombotic injury, an effect potentiated by tissue plasminogen activator. Red blood cells-tissue plasminogen activator blocked c-Jun-N-terminal kinase but potentiated p38 mitogen-activated protein kinase upregulation after photothrombotic injury. A c-Jun-N-terminal kinase mitogen-activated protein kinase antagonist prevented, a p38 mitogen-activated protein kinase antagonist potentiated, whereas an extracellular signal-related kinase mitogen-activated protein kinase antagonist had no effect on dilator impairment after photothrombotic injury.
Conclusions: These data indicate that in addition to restoring perfusion, red blood cells-tissue plasminogen activator prevents impairment of cerebrovasodilation after photothrombotic injury through blockade of c-Jun-N-terminal kinase and potentiation of p38 mitogen-activated protein kinase. These data suggest tissue plasminogen activator coupling to red blood cells offers a novel approach to increase the benefit/risk ratio of thrombolytic therapy to treat central nervous system ischemic disorders. (Pediatr Crit Care Med 2011; 12:e369-e375)
C1 [Armstead, William M.; Riley, John; Kiessling, J. Willis] Univ Penn, Dept Anesthesiol & Crit Care, Philadelphia, PA 19104 USA.
[Armstead, William M.; Zaitsev, Sergei; Muzykantov, Vladimir R.] Univ Penn, Dept Pharmacol, Philadelphia, PA 19104 USA.
[Cines, Douglas B.; Higazi, Abd A. R.] Univ Penn, Dept Pathol & Lab Med, Philadelphia, PA 19104 USA.
[Zaitsev, Sergei; Muzykantov, Vladimir R.] Univ Penn, Inst Environm Med, Philadelphia, PA 19104 USA.
[Muzykantov, Vladimir R.] Univ Penn, Inst Translat Med & Therapeut, Philadelphia, PA 19104 USA.
[Ganguly, Kumkum] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM USA.
[Higazi, Abd A. R.] Hadassah Univ Hosp, Dept Clin Biochem, IL-91120 Jerusalem, Israel.
Hebrew Univ Hadassah Med Sch, Jerusalem, Israel.
RP Armstead, WM (reprint author), Univ Penn, Dept Anesthesiol & Crit Care, Philadelphia, PA 19104 USA.
EM armsteaw@uphs.upenn.edu
FU National Institutes of Health [NS53410, HD57355, HL76406, CA83121,
HL76206, HL07971, HL81864, HL77760, HL82545, HL66442, HL090697];
University of Pennsylvania Research Foundation; University of
Pennsylvania Institute for Translational Medicine and Therapeutics;
Israeli Science Foundation
FX This research was supported by grants from the National Institutes of
Health, NS53410 and HD57355 (W.M.A.); HL76406, CA83121, HL76206,
HL07971, and HL81864 (D.B.C.); HL77760 and HL82545 (A.A.R.H.); HL66442
and HL090697 (V.R.M.); the University of Pennsylvania Research
Foundation (W.M.A.); the University of Pennsylvania Institute for
Translational Medicine and Therapeutics (D.B.C.); and the Israeli
Science Foundation (A.A.R.H.).
NR 24
TC 6
Z9 6
U1 0
U2 3
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1529-7535
J9 PEDIATR CRIT CARE ME
JI Pediatr. Crit. Care Med.
PD NOV
PY 2011
VL 12
IS 6
BP E369
EP E375
DI 10.1097/PCC.0b013e3181fe40a7
PG 7
WC Critical Care Medicine; Pediatrics
SC General & Internal Medicine; Pediatrics
GA 844SP
UT WOS:000296767900026
PM 21037505
ER
PT J
AU Glatz, A
Roberts, HLL
Aranson, IS
Levin, K
AF Glatz, A.
Roberts, H. L. L.
Aranson, I. S.
Levin, K.
TI Nucleation of spontaneous vortices in trapped Fermi gases undergoing a
BCS-BEC crossover
SO PHYSICAL REVIEW B
LA English
DT Article
ID QUANTIZED VORTICES; STRING FORMATION; SUPERFLUID HE-3; TEMPERATURE;
TRANSITION; QUENCH
AB We study the spontaneous formation of vortices during the superfluid condensation in a trapped fermionic gas subjected to a rapid thermal quench via evaporative cooling. Our work is based on the numerical solution of the time-dependent crossover Ginzburg-Landau equation coupled to the heat diffusion equation. We quantify the evolution of condensate density and vortex length as a function of a crossover phase parameter from BCS to BEC. The more interesting phenomena occur somewhat nearer to the BEC regime and should be experimentally observable; during the propagation of the cold front, the increase in condensate density leads to the formation of supercurrents toward the center of the condensate as well as possible condensate volume oscillations.
C1 [Glatz, A.; Aranson, I. S.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Roberts, H. L. L.; Levin, K.] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
[Roberts, H. L. L.; Levin, K.] Univ Chicago, Dept Phys, Chicago, IL 60637 USA.
[Roberts, H. L. L.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
RP Glatz, A (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Aranson, Igor/I-4060-2013
FU US DOE, Office of Basic Energy Sciences, Division of Materials Science
and Engineering [DEAC02-06CH11357]; NSF-MRSEC [0820054]
FX We thank Kara Lamb, Matt Davis, Chih-Chun Chien, and Nate Gemelke for
useful discussions. This work was supported by the by the US DOE, Office
of Basic Energy Sciences, Division of Materials Science and Engineering,
under Contract No. DEAC02-06CH11357, and by NSF-MRSEC Grant No. 0820054
(K.L.).
NR 20
TC 6
Z9 6
U1 0
U2 1
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9950
EI 2469-9969
J9 PHYS REV B
JI Phys. Rev. B
PD NOV 1
PY 2011
VL 84
IS 18
AR 180501
DI 10.1103/PhysRevB.84.180501
PG 4
WC Physics, Condensed Matter
SC Physics
GA 845XT
UT WOS:000296861400001
ER
PT J
AU Ran, Y
Hosur, P
Vishwanath, A
AF Ran, Ying
Hosur, Pavan
Vishwanath, Ashvin
TI Fermionic Hopf solitons and Berry phase in topological surface
superconductors
SO PHYSICAL REVIEW B
LA English
DT Article
ID INSULATORS; SPIN; SKYRMIONS; DIMENSIONS; INTEGER; LIMIT
AB An interesting phenomenon in many-body physics is that quantum statistics may be an emergent property. This was first noted in the Skyrme model of nuclear matter, where a theory of a bosonic order parameter field contains fermionic excitations. These excitations are smooth field textures and are believed to describe neutrons and protons. We argue that a similar phenomenon occurs in topological insulators when superconductivity gaps out their surface states. Here, a smooth texture is naturally described by a three-component vector. Two components describe superconductivity, while the third captures the band topology. Such a vector field can assume a "knotted" configuration in three-dimensional space-the Hopf texture-that cannot smoothly be unwound. Here we show that the Hopf texture is a fermion. To describe the resulting state, the regular Landau-Ginzburg theory of superconductivity must be augmented by a topological Berry phase term. When the Hopf texture is the cheapest fermionic excitation, unusual consequences for tunneling experiments on mesoscopic samples are predicted. This framework directly generalizes the phenomenon of period doubling of Josephson effect to three-dimensional topological insulators with surface superconductivity.
C1 [Ran, Ying; Hosur, Pavan; Vishwanath, Ashvin] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Ran, Ying; Vishwanath, Ashvin] LBNL Berkeley, Div Mat Sci, Berkeley, CA 94720 USA.
RP Ran, Y (reprint author), Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
FU NSF [DMR-0645691]
FX We acknowledge helpful discussions with C. Kane, A. Turner, and S. Ryu.
A.V. and P.H. were supported by NSF DMR-0645691.
NR 26
TC 10
Z9 10
U1 0
U2 4
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD NOV 1
PY 2011
VL 84
IS 18
AR 184501
DI 10.1103/PhysRevB.84.184501
PG 9
WC Physics, Condensed Matter
SC Physics
GA 845XT
UT WOS:000296861400003
ER
PT J
AU Soeder, DJ
AF Soeder, Daniel J.
TI Environmental impacts of shale-gas production
SO PHYSICS TODAY
LA English
DT Letter
C1 US DOE, Morgantown, WV 26507 USA.
RP Soeder, DJ (reprint author), US DOE, Morgantown, WV 26507 USA.
EM daniel.soeder@netl.doe.gov
NR 3
TC 1
Z9 1
U1 2
U2 21
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0031-9228
J9 PHYS TODAY
JI Phys. Today
PD NOV
PY 2011
VL 64
IS 11
BP 8
EP 8
PG 1
WC Physics, Multidisciplinary
SC Physics
GA 847EI
UT WOS:000296954300001
ER
PT J
AU White, AE
Howard, NT
Mikkelsen, DR
Greenwald, M
Candy, J
Waltz, RE
AF White, A. E.
Howard, N. T.
Mikkelsen, D. R.
Greenwald, M.
Candy, J.
Waltz, R. E.
TI Feasibility study for a correlation electron cyclotron emission
turbulence diagnostic based on nonlinear gyrokinetic simulations
SO PLASMA PHYSICS AND CONTROLLED FUSION
LA English
DT Article
ID ALCATOR C-MOD; EXPERIMENTAL TOKAMAK-UPGRADE; TEMPERATURE-FLUCTUATIONS;
CORRELATION RADIOMETRY; HEAT-TRANSPORT; CORE; PLASMA; RESOLUTION;
PROFILE; ECE
AB This paper describes the use of nonlinear gyrokinetic simulations to assess the feasibility of a new correlation electron cyclotron emission (CECE) diagnostic that has been proposed for the Alcator C-Mod tokamak (Marmar et al 2009 Nucl. Fusion 49 104014). This work is based on a series of simulations performed with the GYRO code (Candy andWaltz 2003 J. Comput. Phys. 186 545). The simulations are used to predict ranges of fluctuation level, peak poloidal wavenumber and radial correlation length of electron temperature fluctuations in the core of the plasma. The impact of antenna pattern and poloidal viewing location on measurable turbulence characteristics is addressed using synthetic diagnostics. An upper limit on the CECE sample volume size is determined. The modeling results show that a CECE diagnostic capable of measuring transport-relevant, long-wavelength (k(theta)rho(s) < 0.5) electron temperature fluctuations is feasible at Alcator C-Mod.
C1 [White, A. E.; Howard, N. T.; Greenwald, M.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
[Mikkelsen, D. R.] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA.
[Candy, J.; Waltz, R. E.] Gen Atom Co, San Diego, CA 92186 USA.
RP White, AE (reprint author), MIT, Plasma Sci & Fus Ctr, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
EM whitea@mit.edu
RI White, Anne/B-8990-2011;
OI Greenwald, Martin/0000-0002-4438-729X
FU US Department of Energy [DE-FC02-99ER54512-CMOD]
FX AEW gratefully acknowledges insightful discussions with D Ernst and C
Holland about turbulence as observed in nonlinear gyrokinetic
simulations of Alcator C-Mod plasmas, as well as helpful comments and
suggestions from A Hubbard, I H Hutchinson and P Phillips on the topic
of ECE measurement interpretation. This work is supported by the US
Department of Energy under DE-FC02-99ER54512-CMOD. Computer simulations
using GYRO were carried out on the MIT PSFC parallel AMD
Opteron/Infiniband cluster Loki.
NR 44
TC 4
Z9 4
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0741-3335
J9 PLASMA PHYS CONTR F
JI Plasma Phys. Control. Fusion
PD NOV
PY 2011
VL 53
IS 11
AR 115003
DI 10.1088/0741-3335/53/11/115003
PG 24
WC Physics, Fluids & Plasmas
SC Physics
GA 842MI
UT WOS:000296603200004
ER
PT J
AU Tapily, K
Gu, D
Baumgart, H
Namkoong, G
Stegall, D
Elmustafa, AA
AF Tapily, K.
Gu, D.
Baumgart, H.
Namkoong, G.
Stegall, D.
Elmustafa, A. A.
TI Mechanical and structural characterization of atomic layer
deposition-based ZnO films
SO SEMICONDUCTOR SCIENCE AND TECHNOLOGY
LA English
DT Article
ID THIN-FILMS; NANOINDENTATION; SILICON
AB Zinc oxide thin films were deposited by atomic layer deposition (ALD). The structural and mechanical properties of the thin films were investigated by x-ray diffraction, transmission electron microscopy, atomic force microscopy, and nanoindentation. Diethyl zinc was used as the chemical precursor for zinc and water vapor was used as the oxidation agent. The samples were deposited at 150 degrees C and at a pressure of 2.1 x 10(-1) Torr in the ALD reactor. A growth rate of 2 angstrom per cycle was calculated in the ALD process window. The Nano Indenter XP was used in conjunction with the continuous stiffness method in depth control mode in order to measure and to analyze the mechanical properties of hardness and modulus of ALD ZnO thin film samples. For comparison, we benchmarked the mechanical properties of single crystal bulk ZnO samples against those of our ALD ZnO thin films.
C1 [Tapily, K.; Gu, D.; Baumgart, H.; Namkoong, G.] Old Dominion Univ, Dept Elect & Comp Engn, Norfolk, VA 23529 USA.
[Tapily, K.; Gu, D.; Baumgart, H.; Namkoong, G.; Stegall, D.; Elmustafa, A. A.] Jefferson Natl Accelerator Facil, Appl Res Ctr, Newport News, VA 23606 USA.
[Stegall, D.; Elmustafa, A. A.] Old Dominion Univ, Dept Mech & Aerosp Engn, Norfolk, VA 23529 USA.
RP Tapily, K (reprint author), Old Dominion Univ, Dept Elect & Comp Engn, Norfolk, VA 23529 USA.
EM ktapi001@odu.edu
NR 23
TC 8
Z9 8
U1 3
U2 22
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0268-1242
J9 SEMICOND SCI TECH
JI Semicond. Sci. Technol.
PD NOV
PY 2011
VL 26
IS 11
AR 115005
DI 10.1088/0268-1242/26/11/115005
PG 7
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Engineering; Materials Science; Physics
GA 844SU
UT WOS:000296768400005
ER
PT J
AU Beechem, TE
Serrano, JR
AF Beechem, Thomas E.
Serrano, Justin R.
TI Raman Thermometry of Microdevices: Choosing a Method to Minimize Error
SO SPECTROSCOPY
LA English
DT Article
ID FIELD-EFFECT TRANSISTORS; TEMPERATURE-DEPENDENCE; SPECTROSCOPY;
SCATTERING; SILICON; DEGRADATION; GRAPHENE; SPECTRA; DEVICES
AB Operating temperatures are known to directly affect the performance and reliability of a range of modern microdevices, including light-emitting diodes (LEDs), microelectromechanical systems (MEMS), and high-power electronics. As a consequence, accurate temperature measurements have become imperative in the development of these technologies. Such measurements are complicated, however, by the complex multimaterial stacks typically used and by the fact that traditional probes (thermocouples) have a size and thermal mass on the order of the device being interrogated. In response to these difficulties, Raman thermometry is frequently implemented, because it is a non-contact, material-specific measurement largely benign to device operation that is capable of comparatively small spatial (similar to 500 nm) and thermal (similar to 1 degrees C) resolutions. Practically, these measurements can be made using a variety of spectral features including the position, linewidth, and intensity of the Raman signal associated with specific optical phonon modes. Each of these spectral characteristics offers particular advantages, depending on the type of device and its operational conditions. Here, the practical implementation of Raman thermometry using each of these spectral characteristics is reviewed to highlight the assumptions implicit with their use and to compare their effectiveness in measuring temperature.
C1 [Beechem, Thomas E.; Serrano, Justin R.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Beechem, TE (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM tebeech@sandia.gov
FU United States Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]; LDRD at Sandia National Laboratories
FX This work was funded by the LDRD program office at Sandia National
Laboratories. Sandia is a multiprogram laboratory operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Corporation,
for the United States Department of Energy's National Nuclear Security
Administration under Contract DE-AC04-94AL85000. Special thanks to
Professor Samuel Graham at the Georgia Institute of Technology for his
insight and discussions into these phenomena.
NR 35
TC 13
Z9 13
U1 1
U2 15
PU ADVANSTAR COMMUNICATIONS INC
PI DULUTH
PA 131 W 1ST STREET, DULUTH, MN 55802 USA
SN 0887-6703
J9 SPECTROSCOPY-US
JI Spectroscopy
PD NOV
PY 2011
VL 26
IS 11
BP 36
EP 44
PG 9
WC Spectroscopy
SC Spectroscopy
GA 847UZ
UT WOS:000296999300004
ER
PT J
AU Mohandas, JC
Gnanamani, MK
Jacobs, G
Ma, WP
Ji, YY
Khalid, S
Davis, BH
AF Mohandas, Janet Chakkamadathil
Gnanamani, Muthu Kumaran
Jacobs, Gary
Ma, Wenping
Ji, Yaying
Khalid, Syed
Davis, Burtron H.
TI Fischer-Tropsch Synthesis: Characterization and Reaction Testing of
Cobalt Carbide
SO ACS CATALYSIS
LA English
DT Article
DE carburization; cobalt carbide; cobalt; Fischer-Tropsch synthesis; XANES;
EXAFS
ID CATALYSTS; DEACTIVATION; OXIDATION; DESIGN; WATER; XAFS
AB Hydrogenation of carbon monoxide was investigated for cobalt carbide synthesized from Co(3)O(4) by CO carburization in a fixed-bed reactor. The cobalt carbide synthesized was characterized by BET surface area, X-ray diffraction, scanning electron microscopy, X-ray absorption near edge spectroscopy, and extended X-ray absorption fine structure spectroscopy. The catalysts were tested in the slurry phase using a continuously stirred tank reactor at P = 2.0 MPa, H(2)/CO = 2:1 in the temperature range of 493-523 K, and with space velocities varying from 1 to 3 Nl h(-1) g(cat)(-1). The results strongly suggest that a fraction of cobalt converts to a form with greater metallic character under the conditions employed. This was more pronounced on a Fischer-Tropsch synthesis run conducted at a higher temperature (523 versus 493 K).
C1 [Mohandas, Janet Chakkamadathil; Gnanamani, Muthu Kumaran; Jacobs, Gary; Ma, Wenping; Ji, Yaying; Davis, Burtron H.] Univ Kentucky, Ctr Appl Energy Res, Lexington, KY 40511 USA.
[Khalid, Syed] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Davis, BH (reprint author), Univ Kentucky, Ctr Appl Energy Res, 2540 Res Pk Dr, Lexington, KY 40511 USA.
EM burtron.davis@uky.edu
RI C. Mohandas, Janet/D-4625-2015; Gnanamani, Muthu Kumaran/M-7736-2015;
Jacobs, Gary/M-5349-2015
OI C. Mohandas, Janet/0000-0001-9088-4142; Gnanamani, Muthu
Kumaran/0000-0003-1274-2645; Jacobs, Gary/0000-0003-0691-6717
FU Commonwealth of Kentucky; U.S. DOE, Divisions of Materials Science and
Chemical Sciences
FX This work was supported by the Commonwealth of Kentucky. A part of the
research was carried out at the National Synchrotron Light Source,
Brookhaven National Laboratory, which is supported by the U.S. DOE,
Divisions of Materials Science and Chemical Sciences.
NR 26
TC 27
Z9 27
U1 16
U2 75
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 2155-5435
J9 ACS CATAL
JI ACS Catal.
PD NOV
PY 2011
VL 1
IS 11
BP 1581
EP 1588
DI 10.1021/cs200236q
PG 8
WC Chemistry, Physical
SC Chemistry
GA 842KJ
UT WOS:000296598000015
ER
PT J
AU Aydin, C
Lu, J
Shirai, M
Browning, ND
Gates, BC
AF Aydin, Ceren
Lu, Jing
Shirai, Masayuki
Browning, Nigel D.
Gates, Bruce C.
TI Ir-6 Clusters Compartmentalized in the Supercages of Zeolite NaY: Direct
Imaging of a Catalyst with Aberration-Corrected Scanning Transmission
Electron Microscopy
SO ACS CATALYSIS
LA English
DT Article
DE hexairidium clusters; zeolite NaY; aberration-corrected scanning
transmission electron microscopy; zeolite-encaged nanoclusters
ID RAY-ABSORPTION SPECTROSCOPY; SUPPORTED METAL-CLUSTERS; IRIDIUM CLUSTERS;
STRUCTURAL-CHARACTERIZATION; ETHENE HYDROGENATION; SIZE; COMPLEXES;
NANOPARTICLES; MESOPORES
AB By use of the precursor Ir(CO)(2)(acac) (acac is acetylacetonate), a ship-in-a-bottle synthesis was used to prepare Ir-6(CO)(16) and, by decarbonylation, clusters well approximated as Ir-6 in the supercages of zeolite NaY. The samples were characterized by infrared and extended X-ray absorption fine structure (EXAFS) spectroscopies and imaged by aberration-corrected scanning transmission electron microscopy with a high-dose electron beam (similar to 10(8) e(-)/angstrom(2), 200 kV), and the catalyst performance was characterized by turnover frequencies for ethene hydrogenation at 298 K and atmospheric pressure. The images characterizing a sample with about 17% of the supercages occupied by decarbonylated nanoclusters indicated clusters well approximated as Ir-6, with diameters consistent with such clusters, and some of the images show the clusters with atomic resolution and indicating each of the 6 Ir atoms. The cluster size was confirmed by EXAFS spectra. Two bonding positions of the Ir6 clusters in the supercages were distinguished; 25% of the clusters were present at T5 sites and 75% at T6 sites. The results represent the first example of the application of high-dose electron beam conditions to image metal nanoclusters in a nanoporous material; the data are characterized by a high signal-to-noise ratio, and their interpretation does not require any image processing or simulations. These statements are based on images determined in the first 5 s of exposure of the catalyst to the electron beam; thereafter, the electron beam caused measurable deterioration of the zeolite framework and thereupon aggregation of the iridium clusters.
C1 [Aydin, Ceren; Lu, Jing; Browning, Nigel D.; Gates, Bruce C.] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
[Shirai, Masayuki] Natl Inst Adv Ind Sci & Technol, Res Ctr Compact Chem Syst, Sendai, Miyagi 9838551, Japan.
[Browning, Nigel D.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
RP Gates, BC (reprint author), Univ Calif Davis, Dept Chem Engn & Mat Sci, 1 Shields Ave, Davis, CA 95616 USA.
EM bcgates@ucdavis.edu
OI Browning, Nigel/0000-0003-0491-251X
FU Department of Energy (DOE) [DE-SC0005822, DE-FG02-03ER46057]; University
of California; U.S. Department of Energy, Office of Science, Office of
Basic Energy Sciences [DE-AC02-98CH10886]; DOE Office of Science,
Materials Sciences
FX This work was supported by the Department of Energy (DOE), Grant No.
DE-SC0005822 (J.L.) and Grant No. DE-FG02-03ER46057 (C.A.), and the
University of California Lab Fee Program. Use of the National
Synchrotron Light Source, Brookhaven National Laboratory, was supported
by the U.S. Department of Energy, Office of Science, Office of Basic
Energy Sciences, under Contract No. DE-AC02-98CH10886.; We thank C.-Y.
Chen of Chevron for helpful comments. We acknowledge beam time and
support of the DOE Office of Science, Materials Sciences, for its role
in the operation and development of beam line X-18B at the National
Synchrotron Light Source.
NR 36
TC 14
Z9 14
U1 1
U2 49
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 2155-5435
J9 ACS CATAL
JI ACS Catal.
PD NOV
PY 2011
VL 1
IS 11
BP 1613
EP 1620
DI 10.1021/cs2004104
PG 8
WC Chemistry, Physical
SC Chemistry
GA 842KJ
UT WOS:000296598000019
ER
PT J
AU Manna, K
Kruse, ML
Sadow, AD
AF Manna, Kuntal
Kruse, Marissa L.
Sadow, Aaron D.
TI Concerted C-N/C-H Bond Formation in Highly Enantioselective
Yttrium(III)-Catalyzed Hydroamination
SO ACS CATALYSIS
LA English
DT Article
DE hydroamination; enantioselectivity; pyrrolidine; rare-earth;
organometallics; mechanism
ID ORGANOLANTHANIDE-CATALYZED HYDROAMINATION; COMPREHENSIVE COMPUTATIONAL
ASSESSMENT; UNPROTECTED AMINO OLEFINS; AMINOALKENE
HYDROAMINATION/CYCLIZATION; INTRAMOLECULAR AMINOALKENE; MEDIATED
HYDROAMINATION; COMPLEXES; MECHANISM; POLYMERIZATION; HYDROGENATION
AB A highly active oxazolinylborato yttrium hydroamination catalyst provides 2-methyl-pyrrolidines with excellent optical purities. The proposed mechanism, in which a yttrium(amidoalkene)amine complex reacts by concerted C-N and C-H bond formation, is supported by the rate law for conversion, substrate saturation under initial rates conditions, kinetic isotope effects, and isotopic perturbation of enantioselectivity. These features are conserved between oxazolinylborato Mg-, Y-, and Zr-mediated aminoalkene cyclizations, suggesting related transition states for all three systems. However, inversion of the products' absolute configuration between yttrium and zirconium catalysts coordinated by the same 4S-oxazolinylborate ligands highlight dissimilar mechanisms of stereoinduction.
C1 [Sadow, Aaron D.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA.
RP Sadow, AD (reprint author), Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
EM sadow@iastate.edu
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Chemical Sciences, Geosciences, and Biosciences through the Ames
Laboratory [DE-AC02-07CH11358]; U.S. DOE Office of Science through the
Science Undergraduate Laboratory
FX This research was supported by the U.S. Department of Energy, Office of
Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and
Biosciences through the Ames Laboratory (Contract No.
DE-AC02-07CH11358). Marissa Kruse was supported by the U.S. DOE Office
of Science through the Science Undergraduate Laboratory Internship
Program. Aaron D. Sadow is an Alfred P. Sloan Fellow.
NR 33
TC 39
Z9 39
U1 1
U2 15
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 2155-5435
J9 ACS CATAL
JI ACS Catal.
PD NOV
PY 2011
VL 1
IS 11
BP 1637
EP 1642
DI 10.1021/cs200511z
PG 6
WC Chemistry, Physical
SC Chemistry
GA 842KJ
UT WOS:000296598000022
ER
PT J
AU Zheng, YZ
Ellern, A
Kogerler, P
AF Zheng, Yanzhen
Ellern, Arkady
Koegerler, Paul
TI A spin-frustrated cobalt(II) carbonate pyrochlore network
SO ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS
LA English
DT Article
AB The crystal structure of the cobalt(II) carbonate-based compound cobalt(II) dicarbonate trisodium chloride, Co(CO3)(2)Na3Cl, grown from a water-ethanol mixture, exhibits a three-dimensional network of corner-sharing {Co-4(mu(3)-CO3)(4)} tetrahedral building blocks, in which the Co-II centres define a pyrochlore lattice and reside in a slightly distorted octahedral Co(O-CO2)(6) environment. The space outside the hexagonal framework defined by these interlinked groups is occupied by Na+ and Cl- ions. Antiferromagnetic coupling between adjacent Co II centres, mediated by carbonate bridges, results in geometric spin frustration which is typical for pyrochlore networks. The Co and Cl atoms reside on the special position (3) over bar, one Na atom on position 2 and a carbonate C atom on position 3.
C1 [Zheng, Yanzhen; Koegerler, Paul] Rhein Westfal TH Aachen, Inst Inorgan Chem, D-52074 Aachen, Germany.
[Ellern, Arkady] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RP Kogerler, P (reprint author), Rhein Westfal TH Aachen, Inst Inorgan Chem, Landoltweg 1, D-52074 Aachen, Germany.
EM paul.koegerler@ac.rwth-aachen.de
RI Zheng, Yan-Zhen/A-1917-2011; Kogerler, Paul/H-5866-2013
OI Zheng, Yan-Zhen/0000-0003-4056-097X; Kogerler, Paul/0000-0001-7831-3953
FU US Department of Energy by Iowa State University [DE-AC02-07CH11358]
FX Ames Laboratory is operated for the US Department of Energy by Iowa
State University under Contract 40 No. DE-AC02-07CH11358.
NR 10
TC 6
Z9 6
U1 1
U2 11
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0108-2701
J9 ACTA CRYSTALLOGR C
JI Acta Crystallogr. Sect. C-Cryst. Struct. Commun.
PD NOV
PY 2011
VL 67
BP I56
EP I58
DI 10.1107/S0108270111043605
PN 11
PG 3
WC Chemistry, Multidisciplinary; Crystallography
SC Chemistry; Crystallography
GA 844HO
UT WOS:000296738500002
PM 22051946
ER
PT J
AU Liu, B
Raabe, D
Eisenlohr, P
Roters, F
Arsenlis, A
Hommes, G
AF Liu, B.
Raabe, D.
Eisenlohr, P.
Roters, F.
Arsenlis, A.
Hommes, G.
TI Dislocation interactions and low-angle grain boundary strengthening
SO ACTA MATERIALIA
LA English
DT Article
DE Dislocation dynamics; Strength; Dislocation reactions; Dislocation
interactions; Low-angle grain boundary
ID CRYSTAL PLASTICITY; FCC METALS; SIMULATIONS; DYNAMICS; JUNCTIONS;
DEFORMATION; SCALE; IRON; FLOW
AB The transmission of an incoming dislocation through a symmetrical low-angle tilt grain boundary (GB) is studied for {110} < 111 > slip systems in body-centered cubic metals using discrete dislocation dynamics (DD) simulations. The transmission resistance is quantified in terms of the different types of interactions between the incoming and GB dislocations. Five different dislocation interaction types are considered: collinear, mixed-symmetrical junction, mixed-asymmetrical junction, edge junction, and coplanar. Mixed-symmetrical junction formation events are found not only to cause a strong resistance against the incident dislocation penetration, but also to transform the symmetrical low-angle tilt GB into a hexagonal network (a general low-angle GB). The interactions between the incident dislocation and the GB dislocations can form an array of < 100 > dislocations (binary junctions) in non-coplanar interactions, or a single < 100 > dislocation in coplanar interaction. We study how the transmission resistance depends on the mobility of < 100 > dislocations. < 100 > dislocations have usually been treated as immobile in DD simulations. In this work, we discuss and implement the mobility law for < 100 > dislocations. As an example, we report how the mobility of < 100 > dislocations affects the equilibrium configuration of a ternary dislocation interaction. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Liu, B.; Raabe, D.; Eisenlohr, P.; Roters, F.] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany.
[Arsenlis, A.; Hommes, G.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Liu, B (reprint author), Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany.
EM b.liu@mpie.de; d.raabe@mpie.de
RI Liu, Bing/F-8467-2011; Eisenlohr, Philip/E-6866-2010; Raabe,
Dierk/A-6470-2009
OI Liu, Bing/0000-0002-2508-7013; Eisenlohr, Philip/0000-0002-8220-5995;
Raabe, Dierk/0000-0003-0194-6124
FU Julich Supercomputing Centre [PRA025]
FX Some results addressed in this paper have been achieved using the PRACE
Research Infrastructure Blue Gene/P located in Germany at the Julich
Supercomputing Centre through the grant (PRA025) 'A dislocation dynamics
study of dislocation cell formation and interaction between a low angle
grain boundary and an incoming dislocation'.
NR 30
TC 29
Z9 30
U1 7
U2 67
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
J9 ACTA MATER
JI Acta Mater.
PD NOV
PY 2011
VL 59
IS 19
BP 7125
EP 7134
DI 10.1016/j.actamat.2011.07.067
PG 10
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 839YK
UT WOS:000296405200001
ER
PT J
AU Unocic, RR
Zhou, N
Kovarik, L
Shen, C
Wang, Y
Mills, MJ
AF Unocic, R. R.
Zhou, N.
Kovarik, L.
Shen, C.
Wang, Y.
Mills, M. J.
TI Dislocation decorrelation and relationship to deformation microtwins
during creep of a gamma ' precipitate strengthened Ni-based superalloy
SO ACTA MATERIALIA
LA English
DT Article
DE Creep; Microtwinning; Shockley partial dislocations; Diffusion; Atomic
ordering
ID SINGLE-CRYSTAL SUPERALLOYS; NICKEL-BASED SUPERALLOYS; PHASE FIELD MODEL;
STACKING-FAULTS; INTERMEDIATE TEMPERATURE; FCC CRYSTALS; MECHANISMS;
SHEAR; CMSX-4; SLIP
AB The evolution of microtwins during high temperature creep deformation in a gamma' strengthened Ni-based superalloy has been investigated through a combination of creep testing, transmission electron microscopy (TEM), theoretical modeling, and computer simulation. Experimentally, microtwin nucleation sources were identified and their evolution was tracked by characterizing the deformation substructure at different stages of creep deformation. Deformation is highly localized around stress concentrators such as carbides, borides and serrated grain boundaries, which act as sources of a/2 < 1 1 0 > matrix-type dislocations. Due to fine channels between the gamma' particles, coupled with a low gamma matrix stacking fault energy, the a/2 < 1 1 0 > matrix dislocations dissociate into a/6 < 1 1 2 > Shockley partials, which were commonly observed to be decorrelated from one another, creating extended intrinsic stacking faults in the gamma matrix. Microtwins are common and form via Shockley partial dislocations, cooperatively shearing both the gamma and gamma' phases on adjacent {1 1 1} glide planes. The TEM observations lead directly to an analysis of dislocation-precipitate interactions. The important processes of dislocation dissociation and decorrelation were modeled in detail through phase field simulations and theoretical analyses based on Orowan looping, providing a comprehensive insight into the microstructural features and applied stress conditions that favor the microtwinning deformation mode in gamma' strengthened Ni-based superalloys. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
C1 [Unocic, R. R.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Unocic, R. R.; Zhou, N.; Kovarik, L.; Wang, Y.; Mills, M. J.] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA.
[Kovarik, L.] Pacific NW Natl Lab, EMSL, Richland, WA 99352 USA.
[Shen, C.] GE Global Res, Niskayuna, NY 12309 USA.
RP Unocic, RR (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
EM unocicrr@ornl.gov
RI Zhou, Ning/B-2624-2010; Mills, Michael/I-6413-2013; Wang,
Yunzhi/B-2557-2010; Kovarik, Libor/L-7139-2016;
OI Unocic, Raymond/0000-0002-1777-8228
FU US Air ForceAir Force Office of Scientific Research; Oak Ridge National
Laboratory
FX Acknowledgement is given to support from the US Air Force sponsored
Metals Affordability Initiative (MAI) project entitled "Durable high
temperature disk material". Team members include Pratt & Whitney, GE
Aviation, Georgia Institute of Technology, The Ohio State University,
and the University of Rhode Island. The authors would like to thank the
Air Force Office of Scientific Research for their support under the
AFOSR MEANS II program. R.R.U. would like to acknowledge support from
the Alvin M. Weinberg Fellowship of Oak Ridge National Laboratory,
managed by UT-Battelle for the US Department of Energy.
NR 45
TC 35
Z9 36
U1 9
U2 82
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
J9 ACTA MATER
JI Acta Mater.
PD NOV
PY 2011
VL 59
IS 19
BP 7325
EP 7339
DI 10.1016/j.actamat.2011.07.069
PG 15
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 839YK
UT WOS:000296405200019
ER
PT J
AU Marina, OC
Sanders, CK
Kaduchak, G
Goddard, GR
Graves, SW
AF Marina, Oana C.
Sanders, Claire K.
Kaduchak, Gregory
Goddard, Gregory R.
Graves, Steven W.
TI Acoustic lysis of vegetative bacterial cells: Method and device
development
SO ANALYTICAL METHODS
LA English
DT Article
ID TOTAL ANALYSIS SYSTEMS; DISRUPTION; ULTRASOUND; DNA; MICROORGANISMS;
CAVITATION; PRESSURE; PROTEIN
AB A critical problem of many pathogen detection assays is the availability of intracellular protein and deoxyribonucleic acid (DNA). Acoustic lysis of suspended vegetative bacterial cells in a microfluidic system offers several advantages over conventional lysis techniques. The intracellular proteins and DNA are released and available for detection. A novel acoustic lysing alternative technique to the existing lysing methods for sample preparation and lysis step is proposed. We report here an efficient lysis device that uses acoustic excitation for performing lysis of Gram-positive and Gram-negative vegetative cells and has a high yield in a short amount of time. We also verified the condition of released protein since one of the major uses of vegetative cells lysis is for protein expression studies. Fluorimetry and flow cytometry were used to assess the degree of damage induced on the cells by the actual lysis method. The acoustic device allows the delivery of proteins in a non-denatured form, without adding chemicals, particles or other substances (e.g. enzymes) that could complicate the process or the detection procedure. The lysis device operates at low power (50-400 mW) and short time (3 min) and has high efficiency in comparison to current lysis standards (>85% vs. 12-50%).
C1 [Marina, Oana C.; Sanders, Claire K.] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA.
[Kaduchak, Gregory; Goddard, Gregory R.] Life Technol, Eugene, OR 97405 USA.
[Graves, Steven W.] Univ New Mexico, Ctr Biomed Engn, Albuquerque, NM 87131 USA.
RP Marina, OC (reprint author), Los Alamos Natl Lab, Biosci Div, Mail Stop M888,POB 1663, Los Alamos, NM 87545 USA.
EM oanam@lanl.gov
FU LANL; NIH-NCRR [P41 RR-01315]
FX The authors would like to express their appreciation to Dr Michael D.
Ward and Travis Woods for invaluable technical discussions and technical
assistance. The authors would like also to thank to Dr Csaba Kiss for
providing E. coli expressing GFP samples. The authors would also like to
thank Dr Babetta Marrone and Dr Judith Mourant for help revising this
manuscript. This research was supported by LANL Laboratory Directed
Research and Development funds and the NIH-NCRR National Flow Cytometry
Resource, Grant # P41 RR-01315.
NR 24
TC 3
Z9 3
U1 2
U2 15
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1759-9660
J9 ANAL METHODS-UK
JI Anal. Methods
PD NOV
PY 2011
VL 3
IS 11
BP 2573
EP 2578
DI 10.1039/c1ay05326d
PG 6
WC Chemistry, Analytical; Food Science & Technology; Spectroscopy
SC Chemistry; Food Science & Technology; Spectroscopy
GA 842QP
UT WOS:000296614600021
ER
PT J
AU Guo, Y
Wang, Z
Qu, ZH
Braiman, Y
AF Guo, Yi
Wang, Zheng
Qu, Zhihua
Braiman, Yehuda
TI Atomic-scale friction control by vibration using friction force
microscope
SO CONTROL ENGINEERING PRACTICE
LA English
DT Article
DE Nonlinear control; Friction; Vibration; Nano-scale systems; Friction
force microscope
ID NONLINEAR-SYSTEMS; DRY FRICTION; SLIDING FRICTION; DYNAMICS;
NANOTRIBOLOGY; MONOLAYERS; DITHER; MOTION; MODEL
AB Manipulation of friction at the nanoscale has been traditionally approached by chemical means (lubrication). Recent friction force microscopy (FFM) experiments demonstrated that it can be done mechanically by applying vibration to accessible elements of the system. This paper provides analytic understanding on why vibration can reduce friction based on a 1D model imitating the FFM tip moving on a substrate. Open-loop stability is first studied, and a feedback vibration control is then designed using the accessible variable. Comparing to the open-loop system, friction force is significantly reduced in the closed-loop system. Numerical simulations show satisfactory performances. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Guo, Yi; Wang, Zheng] Stevens Inst Technol, Dept Elect & Comp Engn, Hoboken, NJ 07030 USA.
[Qu, Zhihua] Univ Cent Florida, Sch Elect Engn & Comp Sci, Orlando, FL 32816 USA.
[Braiman, Yehuda] Oak Ridge Natl Lab, Ctr Engn Sci Adv Res, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
[Braiman, Yehuda] Univ Tennessee, Dept Mech Aerosp & Biomed Engn, Knoxville, TN 37996 USA.
RP Guo, Y (reprint author), Stevens Inst Technol, Dept Elect & Comp Engn, Hoboken, NJ 07030 USA.
EM yi.guo@stevens.edu; zheng.wang@stevens.edu; qu@mail.ucf.edu;
braimany@ornl.gov
FU National Science Foundation [0825613, 1024660]; U.S. Department of
Energy [DE-AC05-00OR22725]
FX The work was partially supported by the National Science Foundation
under Grants CMMI#0825613 and EFRI#1024660. Oak Ridge National
Laboratory is managed by UT-Battelle, LLC for the U.S. Department of
Energy under Contract DE-AC05-00OR22725.
NR 48
TC 0
Z9 0
U1 2
U2 10
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0967-0661
EI 1873-6939
J9 CONTROL ENG PRACT
JI Control Eng. Practice
PD NOV
PY 2011
VL 19
IS 11
BP 1387
EP 1397
DI 10.1016/j.conengprac.2011.07.014
PG 11
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA 843OB
UT WOS:000296680400012
ER
PT J
AU Elkins, LJ
Sims, KWW
Prytulak, J
Elliott, T
Mattielli, N
Blichert-Toft, J
Blusztajn, J
Dunbar, N
Devey, C
Mertz, DF
Schilling, JG
Murrell, M
AF Elkins, L. J.
Sims, K. W. W.
Prytulak, J.
Elliott, T.
Mattielli, N.
Blichert-Toft, J.
Blusztajn, J.
Dunbar, N.
Devey, C.
Mertz, D. F.
Schilling, J. -G.
Murrell, M.
TI Understanding melt generation beneath the slow-spreading Kolbeinsey
Ridge using U-238, Th-230, and Pa-231 excesses
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID EAST PACIFIC RISE; U-SERIES DISEQUILIBRIA; MID-ATLANTIC RIDGE;
NORWEGIAN-GREENLAND SEA; ND-PB ISOTOPE; TH-PA-RA; HETEROGENEOUS ICELAND
PLUME; UPWELLING RATES BENEATH; TRACE-ELEMENT EVIDENCE; JUAN-DE-FUCA
AB To examine the petrogenesis and sources of basalts from the Kolbeinsey Ridge, one of the shallowest locations along the global ridge system, we present new measurements of Nd, Sr, Hf, and Pb isotopes and U-series disequilibria on 32 axial basalts. Young Kolbeinsey basalts (full-spreading rate = 1.8 cm/yr; 67 degrees 05'-70 degrees 26'N) display (Th-230/U-238) < 1 and (Th-230/U-238) > 1 with (Th-230/U-238) from 0.95 to 1.30 and have low U (11.3-65.6 ppb) and Th (33.0 ppb-2.40 ppm) concentrations. Except for characteristic isotopic enrichment near the Jan Mayen region, the otherwise depleted Kolbeinsey basalts (e. g. Sr-87/Sr-86 = 0.70272-0.70301, epsilon(Nd) = 8.4-10.5, epsilon(Hf) = 15.4-19.6 (La/Yb)(N) = 0.28-0.84) encompass a narrow range of (Th-230/Th-232) (1.20-1.32) over a large range in (U-238/Th-232) (0.94-1.32), producing a horizontal array on a (Th-230/Th-232) vs. (U-238/Th-232) diagram and a large variation in (Th-230/U-238). However, the (Th-230/U-238) of the Kolbeinsey Ridge basalts (0.96-1.30) are inversely correlated with (U-234/U-238) (1.001-1.031). Samples with low (Th-230/U-238) and elevated (U-234/U-238) reflect alteration by seawater or seawater-derived materials. The unaltered Kolbeinsey lavas with equilibrium U-234/U-238 have high (Th-230/U-238) values (>= 1.2), which are consistent with melting in the presence of garnet. This is in keeping with the thick crust and anomalously shallow axial depth for the Kolbeinsey Ridge, which is thought to be the product of large degrees of melting in a long melt column. A time-dependent, dynamic melting scenario involving a long, slowly upwelling melting column that initiates well within the garnet peridotite stability zone can, in general, reproduce the (Th-230/U-238) and (Pa-231/U-235) ratios in uncontaminated Kolbeinsey lavas, but low (Pa-231/U-235) ratios in Eggvin Bank samples suggest eclogite involvement in the source for that ridge segment. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Elkins, L. J.; Sims, K. W. W.; Blusztajn, J.] Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA.
[Elkins, L. J.] Bryn Mawr Coll, Dept Geol, Bryn Mawr, PA 19010 USA.
[Sims, K. W. W.] Univ Wyoming, Dept Geol & Geophys, Laramie, WY 82071 USA.
[Prytulak, J.] Univ Oxford, Oxford, England.
[Prytulak, J.; Elliott, T.] Univ Bristol, Sch Earth Sci, Bristol Isotope Grp, Bristol, Avon, England.
[Mattielli, N.] Univ Bruxelles, Brussels, Belgium.
[Elliott, T.; Mattielli, N.] Fac Aardwetenschappen, NL-1081 HV Amsterdam, Netherlands.
[Blichert-Toft, J.] Ecole Normale Super Lyon, Lab Geol Lyon, F-69007 Lyon, France.
[Blichert-Toft, J.] Univ Lyon 1, CNRS UMR 5276, F-69007 Lyon, France.
[Dunbar, N.] New Mexico Inst Min & Technol, Socorro, NM 87801 USA.
[Devey, C.] IFM GEOMAR, D-24148 Kiel, Germany.
[Mertz, D. F.] Johannes Gutenberg Univ Mainz, Inst Geosci, D-55099 Mainz, Germany.
[Schilling, J. -G.] Univ Rhode Isl, Narragansett, RI USA.
[Murrell, M.] Los Alamos Natl Lab, Los Alamos, NM USA.
RP Elkins, LJ (reprint author), Bryn Mawr Coll, Dept Geol, Bryn Mawr, PA 19010 USA.
EM lelkins@brynmawr.edu
RI Blichert-Toft, Janne/C-8280-2012; Devey, Colin/I-3898-2016
OI Blichert-Toft, Janne/0000-0002-4932-4079; Devey,
Colin/0000-0002-0930-7274
FU NSF [OCE-0422278, OCE-1061037/1060434]; French Institut National des
Sciences de l'Univers
FX This work has benefited from thoughtful and insightful reviews by V.
Salters, A. Pietruszka, and an anonymous reviewer, and from valuable
conversations and interactions with a number of colleagues: Rob Sohn,
Stan Hart, Peter Kelemen, Fred Frey, Glenn Gaetani, Marc Speigelman,
Susan Humphris, and Chris Waters. This research was funded by NSF
OCE-0422278 to K. W. W. S. and NSF OCE-1061037/1060434 to L.J.E. and K.
W. W. S. J.B.T. acknowledges financial support from the French Institut
National des Sciences de l'Univers.
NR 188
TC 19
Z9 19
U1 0
U2 22
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 NOV 1
PY 2011
VL 75
IS 21
BP 6300
EP 6329
DI 10.1016/j.gca.2011.08.020
PG 30
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 842CT
UT WOS:000296566600003
ER
PT J
AU Zachara, JM
Kukkadapu, RK
Peretyazhko, T
Bowden, M
Wang, CM
Kennedy, DW
Moore, D
Arey, B
AF Zachara, John M.
Kukkadapu, Ravi K.
Peretyazhko, Tanya
Bowden, Mark
Wang, Chongmin
Kennedy, Dave W.
Moore, Dean
Arey, Bruce
TI The mineralogic transformation of ferrihydrite induced by heterogeneous
reaction with bioreduced anthraquinone disulfonate (AQDS) and the role
of phosphate
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID DISSIMILATORY IRON REDUCTION; ELECTRON-SHUTTLING COMPOUNDS; NATURAL
ORGANIC-MATTER; C-TYPE CYTOCHROMES; LEPIDOCROCITE GAMMA-FEOOH; GREEN
RUST FORMATION; GEOBACTER-SULFURREDUCENS; MICROBIAL REDUCTION; FE(III)
OXIDES; FE(III)-REDUCING BACTERIUM
AB Bioreduced anthraquinone-2,6-disulfonate (AH(2)DS; dihydro-anthraquinone) was reacted with a 2-line, Si-substituted ferrihydrite under anoxic conditions at neutral pH in PIPES buffer. Phosphate (P) and bicarbonate (C); common adsorptive oxyanions and media/buffer components known to effect ferrihydrite mineralization; and Fe(II)(aq) (as a catalytic mineralization agent) were used in comparative experiments. Heterogeneous AH(2)DS oxidation coupled with Fe(III) reduction occurred within 0.13-1 day, with mineralogic transformation occurring thereafter. The product suite included lepidocrocite, goethite, and/or magnetite, with proportions varing with reductant: oxidant ratio (r:o) and the presence of P or C. Lepidocrocite was the primary product at low r:o in the absence of P or C, with evidence for multiple formation pathways. Phosphate inhibited reductive recrystallization, while C promoted goethite formation. Stoichiometric magnetite was the sole product at higher r: o in the absence and presence of P. Lepidocrocite was the primary mineralization product in the Fe(II)(aq) system, with magnetite observed at near equal amounts when Fe(II) was high [Fe(II)/Fe(III)] = 0.5 and P was absent. P had a greater effect on reductive mineralization in the Fe(II)(aq) system, while AQDS was more effective than Fe(II)(aq) in promoting magnetite formation. The mineral products of the direct AH(2)DS-driven reductive reaction are different from those observed in AH(2)DS-ferrihydite systems with metal reducing bacteria, particularly in presence of P. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Zachara, John M.; Kukkadapu, Ravi K.; Peretyazhko, Tanya; Bowden, Mark; Wang, Chongmin; Kennedy, Dave W.; Moore, Dean; Arey, Bruce] Pacific NW Natl Lab, Richland, WA 99354 USA.
RP Zachara, JM (reprint author), Pacific NW Natl Lab, POB 999,MSIN K8-96, Richland, WA 99354 USA.
EM john.zachara@pnl.gov
OI Kennedy, David/0000-0003-0763-501X
FU Office of Basic Energy Science (BES), US Department of Energy (DOE);
Department of Energy's Office of Biological and Environmental Research
FX This research was supported by the Geosciences Research Program of the
Office of Basic Energy Science (BES), US Department of Energy (DOE).
X-ray diffraction (XRD), electron microscopy, and Mossbauer measurements
were performed using EMSL, a national scientific user facility sponsored
by the Department of Energy's Office of Biological and Environmental
Research and located at Pacific Northwest National Laboratory. PNNL is
operated for the Department of Energy by Battelle. We acknowledge the
assistance of Janae Strickland, Colleen Russell, and Odeta Qafoku with
experimentation, XRD, and Mossbauer measurements. Appreciated comments
and recommendations were provided by three anonymous reviewers that
improved the manuscript.
NR 106
TC 15
Z9 16
U1 4
U2 46
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
EI 1872-9533
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD NOV 1
PY 2011
VL 75
IS 21
BP 6330
EP 6349
DI 10.1016/j.gca.2011.06.030
PG 20
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 842CT
UT WOS:000296566600004
ER
PT J
AU Tinnacher, RM
Zavarin, M
Powell, BA
Kersting, AB
AF Tinnacher, Ruth M.
Zavarin, Mavrik
Powell, Brian A.
Kersting, Annie B.
TI Kinetics of neptunium(V) sorption and desorption on goethite: An
experimental and modeling study
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID ADSORPTION-DESORPTION; ATRAZINE SORPTION; AQUATIC SYSTEMS; ION-EXCHANGE;
HEAVY-METALS; HYSTERESIS; SOIL; MIGRATION; DISSOLUTION; TRANSPORT
AB Various sorption phenomena, such as aging, hysteresis and irreversible sorption, can cause differences between contaminant (ad) sorption and desorption behavior and lead to apparent sorption 'asymmetry'. We evaluate the relevance of these characteristics for neptunium(V) (Np(V)) sorption/desorption on goethite using a 34-day flow-cell experiment and kinetic modeling. Based on experimental results, the Np(V) desorption rate is much slower than the (ad) sorption rate, and appears to decrease over the course of the experiment. The best model fit with a minimum number of fitting parameters was achieved with a multi-reaction model including (1) an equilibrium Freundlich site (site 1), (2) a kinetically-controlled, consecutive, first-order site (site 2), and (3) a parameter psi(2,de), which characterizes the desorption rate on site 2 based on a concept related to transition state theory (TST). This approach allows us to link differences in adsorption and desorption kinetics to changes in overall reaction pathways, without assuming different adsorption and desorption affinities (hysteresis) or irreversible sorption behavior a priori. Using modeling as a heuristic tool, we determined that aging processes are relevant. However, hysteresis and irreversible sorption behavior can be neglected within the time-frame (desorption over 32 days) and chemical solution conditions evaluated in the flow-cell experiment. In this system, desorption reactions are very slow, but they are not irreversible. Hence, our data do not justify an assumption of irreversible Np(V) sorption to goethite in transport models, which effectively limits the relevance of colloid-facilitated Np(V) transport to near-field environments. However, slow Np(V) desorption behavior may also lead to a continuous contaminant source term when metals are sorbed to bulk mineral phases. Additional long-term experiments are recommended to definitely rule out irreversible Np(V) sorption behavior at very low surface loadings and environmentally-relevant time-scales. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Tinnacher, Ruth M.; Zavarin, Mavrik; Kersting, Annie B.] Lawrence Livermore Natl Lab, Glenn T Seaborg Inst, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
[Powell, Brian A.] Clemson Univ, Dept Environ Eng & Earth Sci, Clemson, SC 29625 USA.
RP Tinnacher, RM (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, 1 Cyclotron Rd,MS 90-1116, Berkeley, CA 94720 USA.
EM RMTinnacher@lbl.gov
RI Powell, Brian /C-7640-2011; Tinnacher, Ruth/I-4845-2015
OI Powell, Brian /0000-0003-0423-0180;
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX The authors thank S. Carroll and A. F. B. Tompson (Lawrence Livermore
National Laboratory, USA) as well as M. Geier (Sandia National
Laboratory, USA) for many helpful discussions. This work performed under
the auspices of the U.S. Department of Energy by Lawrence Livermore
National Laboratory under Contract DE-AC52-07NA27344.
NR 74
TC 19
Z9 21
U1 13
U2 59
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
EI 1872-9533
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD NOV 1
PY 2011
VL 75
IS 21
BP 6584
EP 6599
DI 10.1016/j.gca.2011.08.014
PG 16
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 842CT
UT WOS:000296566600020
ER
PT J
AU Svenning, MM
Hestnes, AG
Wartiainen, I
Stein, LY
Klotz, MG
Kalyuzhnaya, MG
Spang, A
Bringel, F
Vuilleumier, S
Lajus, A
Medigue, C
Bruce, DC
Cheng, JF
Goodwin, L
Ivanova, N
Han, J
Han, CS
Hauser, L
Held, B
Land, ML
Lapidus, A
Lucas, S
Nolan, M
Pitluck, S
Woyke, T
AF Svenning, Mette M.
Hestnes, Anne Grethe
Wartiainen, Ingvild
Stein, Lisa Y.
Klotz, Martin G.
Kalyuzhnaya, Marina G.
Spang, Anja
Bringel, Francoise
Vuilleumier, Stephane
Lajus, Aurelie
Medigue, Claudine
Bruce, David C.
Cheng, Jan-Fang
Goodwin, Lynne
Ivanova, Natalia
Han, James
Han, Cliff S.
Hauser, Loren
Held, Brittany
Land, Miriam L.
Lapidus, Alla
Lucas, Susan
Nolan, Matt
Pitluck, Sam
Woyke, Tanja
TI Genome Sequence of the Arctic Methanotroph Methylobacter tundripaludum
SV96
SO JOURNAL OF BACTERIOLOGY
LA English
DT Article
ID DIVERSITY; SOIL; BACTERIA; PROTEINS; ISLANDS; NORWAY
AB Methylobacter tundripaludum SV96(T) (ATCC BAA-1195) is a psychrotolerant aerobic methane-oxidizing gammaproteobacterium (Methylococcales, Methylococcaceae) living in High Arctic wetland soil. The strain was isolated from soil harvested in July 1996 close to the settlement Ny-Alesund, Svalbard, Norway (78 degrees 56'N, 11 degrees 53'E), and described as a novel species in 2006. The genome includes pmo and pxm operons encoding copper membrane monooxygenases (Cu-MMOs), genes required for nitrogen fixation, and the nirS gene implicated in dissimilatory nitrite reduction to NO but no identifiable inventory for further processing of nitrogen oxides. These genome data provide the basis to investigate M. tundripaludum SV96, identified as a major player in the biogeochemistry of Arctic environments.
C1 [Svenning, Mette M.] Univ Tromsoe, Dept Arctic & Marine Biol, Fac Biosci Fisheries & Econ, N-9037 Tromso, Norway.
[Stein, Lisa Y.] Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2E9, Canada.
[Klotz, Martin G.] Univ Louisville, Dept Biol, Louisville, KY 40292 USA.
[Klotz, Martin G.] Univ Louisville, Dept Microbiol & Immunol, Louisville, KY 40292 USA.
[Kalyuzhnaya, Marina G.] Univ Washington, Dept Microbiol, Seattle, WA 98195 USA.
[Spang, Anja] Univ Vienna, Dept Genet Ecol, Vienna, Austria.
[Bringel, Francoise; Vuilleumier, Stephane] Univ Strasbourg, Equipe Adaptat & Interact Microbiennes Environm, CNRS, UMR 7156, F-67000 Strasbourg, France.
[Lajus, Aurelie; Medigue, Claudine] Genoscope IG CEA, CEA DSV IG Genoscope, F-91057 Evry, France.
[Lajus, Aurelie; Medigue, Claudine] Genoscope IG CEA, LABGeM, CNRS, UMR8030, F-91057 Evry, France.
[Bruce, David C.; Goodwin, Lynne; Han, Cliff S.; Held, Brittany] Los Alamos Natl Lab, Joint Genome Inst, Biosci Div, Los Alamos, NM 87545 USA.
[Cheng, Jan-Fang; Ivanova, Natalia; Han, James; Lapidus, Alla; Lucas, Susan; Nolan, Matt; Pitluck, Sam; Woyke, Tanja] US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA.
[Hauser, Loren; Land, Miriam L.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
RP Svenning, MM (reprint author), Univ Tromsoe, Dept Arctic & Marine Biol, Fac Biosci Fisheries & Econ, N-9037 Tromso, Norway.
EM mette.svenning@uit.no
RI Vuilleumier, Stephane/D-2647-2012; Hauser, Loren/H-3881-2012; Lapidus,
Alla/I-4348-2013; Land, Miriam/A-6200-2011; Svenning, Mette/L-6795-2015;
Klotz, Martin/D-2091-2009; Stein, Lisa/E-6374-2016;
OI Vuilleumier, Stephane/0000-0003-2232-7023; Lapidus,
Alla/0000-0003-0427-8731; Land, Miriam/0000-0001-7102-0031; Klotz,
Martin/0000-0002-1783-375X; Stein, Lisa/0000-0001-5095-5022;
Kalyuzhnaya, Marina/0000-0002-9058-7794
FU Office of Science of the DOE [DE-AC02-05CH11231]; NSERC; University of
Louisville; DOE [DE-SC0005154]; GIS-IbiSA grant
FX The work conducted by the U.S. Department of Energy Joint Genome
Institute was supported by the Office of Science of the DOE under
contract no. DE-AC02-05CH11231. Lisa Y. Stein was supported by a grant
from NSERC. Martin G. Klotz was supported by incentive funds by the
University of Louisville. Marina G. Kalyuzhnaya was supported by the DOE
(DE-SC0005154). Stephane Vuilleumier was supported by a GIS-IbiSA grant.
NR 16
TC 23
Z9 23
U1 2
U2 39
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0021-9193
J9 J BACTERIOL
JI J. Bacteriol.
PD NOV
PY 2011
VL 193
IS 22
BP 6418
EP 6419
DI 10.1128/JB.05380-11
PG 2
WC Microbiology
SC Microbiology
GA 843XF
UT WOS:000296709600048
PM 21725021
ER
PT J
AU Alexander, MH
Hall, GE
Dagdigian, PJ
AF Alexander, Millard H.
Hall, Gregory E.
Dagdigian, Paul J.
TI The Approach to Equilibrium: Detailed Balance and the Master Equation
SO JOURNAL OF CHEMICAL EDUCATION
LA English
DT Article
DE Upper-Division Undergraduate; Physical Chemistry; Calculator-Based
Learning; Kinetic-Molecular Theory; Kinetics; Rate Law; Statistical
Mechanics
ID ROTATIONAL ENERGY-TRANSFER; FITTING LAWS; RELAXATION; SYSTEMS
AB The approach to the equilibrium (Boltzmann) distribution of populations of internal states of a molecule is governed by inelastic collisions in the gas phase and with surfaces. The set of differential equations governing the time evolution of the internal state populations is commonly called the master equation. An analytic solution to the master equation is presented and shows that the equilibrium distribution is the Boltzmann distribution. This solution is applied to the master equation involving collisions of rotational states of a diatomic molecule with a monatomic bath gas.
C1 [Dagdigian, Paul J.] Johns Hopkins Univ, Dept Chem, Baltimore, MD 21218 USA.
[Alexander, Millard H.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
[Alexander, Millard H.] Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA.
[Hall, Gregory E.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Dagdigian, PJ (reprint author), Johns Hopkins Univ, Dept Chem, Charles & 34Th St, Baltimore, MD 21218 USA.
EM pjdagdigian@jhu.edu
RI Hall, Gregory/D-4883-2013
OI Hall, Gregory/0000-0002-8534-9783
FU U.S. National Science Foundation [CHE-0848110]; U.S. Department of
Energy [DESC0002323]; U.S. Department of Energy, Office of Science
[DE-AC02-98CH10886]; Division of Chemical Sciences
FX The authors gratefully acknowledge helpful comments and suggestions from
Christopher Jarzynski, Surinarayanan Vaikuntanathan, Harris Silverstone,
Dianne O'Leary, and Edward Scheinerman. Partial support for this work
was provided by the U.S. National Science Foundation under Grant No.
CHE-0848110 and by the U.S. Department of Energy, under Grant No.
DESC0002323. Contributions by GEH were carried out under contract no.
DE-AC02-98CH10886 with the U.S. Department of Energy, Office of Science,
and supported by its Division of Chemical Sciences.
NR 17
TC 3
Z9 3
U1 0
U2 22
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0021-9584
J9 J CHEM EDUC
JI J. Chem. Educ.
PD NOV
PY 2011
VL 88
IS 11
BP 1538
EP 1543
DI 10.1021/ed2001329
PG 6
WC Chemistry, Multidisciplinary; Education, Scientific Disciplines
SC Chemistry; Education & Educational Research
GA 838SN
UT WOS:000296312600018
ER
PT J
AU McCloy, JS
Crum, JV
Sundaram, SK
Slaugh, R
Woskov, PP
AF McCloy, John S.
Crum, Jarrod V.
Sundaram, S. K.
Slaugh, Ryan
Woskov, Paul P.
TI High Temperature Millimeter Wave Radiometric and Interferometric
Measurements of Slag-Refractory Interaction for Application to Coal
Gasifiers
SO JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES
LA English
DT Article
DE Emissivity; Coal gasification; Viscosity; Millimeter-wave; Radiometry;
High temperature
ID EMISSIVITY; FOAM
AB Millimeter wave (MMW) radiometry can be used for simultaneous measurement of emissivity and temperature of materials under extreme environments such as in slagging coal gasifiers, where sensors have been identified as a key enabling technology need for process optimization. We present a dual-channel MMW heterodyne radiometer with active interferometric capability that allows simultaneous measurements of sample temperature, emissivity, and flow dynamics. Interferometric capability at 137 GHz is supplied via a probe signal originating from a local oscillator allowing monitoring of sample dynamics such as volume expansion and thickness change. This capability has been used to monitor characteristic behavior between refractories and slag such as slag infiltration, slag melting, viscous flow, foaming, and crucible corrosion by the molten slag. These results show the promise of the MMW system for extracting process parameters from operating slagging coal gasifiers, providing valuable information for process efficiency, control, and increased productivity.
C1 [McCloy, John S.; Crum, Jarrod V.; Slaugh, Ryan] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Sundaram, S. K.] Alfred Univ, Kazuo Inamori Sch Engn, Alfred, NY 14802 USA.
[Woskov, Paul P.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
RP McCloy, JS (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd,MSIN K6-24,POB 999, Richland, WA 99352 USA.
EM john.mccloy@pnl.gov
RI McCloy, John/D-3630-2013
OI McCloy, John/0000-0001-7476-7771
FU Energy Conversion Initiative (ECI) at Pacific Northwest National
Laboratory (PNNL)
FX The authors acknowledge partial support from Energy Conversion
Initiative (ECI) at Pacific Northwest National Laboratory (PNNL). PNNL
is a multi-program national laboratory operated by Battelle Memorial
Institute for the United States Department of Energy under DE-AC06-76RLO
1830. The authors thank Maura Zimmerschied and Josef Matyas for reviews
of the preliminary manuscript.
NR 15
TC 0
Z9 0
U1 0
U2 4
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1866-6892
EI 1866-6906
J9 J INFRARED MILLIM TE
JI J. Infrared Millim. Terahertz Waves
PD NOV
PY 2011
VL 32
IS 11
BP 1337
EP 1349
DI 10.1007/s10762-011-9823-4
PG 13
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 843AJ
UT WOS:000296643900009
ER
PT J
AU Adak, S
Daemen, LL
Hartl, M
Williams, D
Summerhill, J
Nakotte, H
AF Adak, Sourav
Daemen, Luke L.
Hartl, Monika
Williams, Darrick
Summerhill, Jennifer
Nakotte, Heinz
TI Thermal expansion in 3d-metal Prussian Blue Analogs-A survey study
SO JOURNAL OF SOLID STATE CHEMISTRY
LA English
DT Article
DE Prussian Blue Analogs; Negative thermal expansion; Crystal structures
ID CRYSTAL-STRUCTURE; PHASE-TRANSITIONS; CO; QUARTZ; ZRW2O8; ZN; CD; FE;
NI; CU
AB We present a comprehensive study of the structural properties and the thermal expansion behavior of 17 different Prussian Blue Analogs (PBAs) with compositions M(3)(II)[(M')(III)(CN)(6)](2) center dot nH(2)O and M(2)(II)[Fe(II)(CN)(6)] center dot nH(2)O, where M(II) = Mn, Fe, Co, Ni, Cu and Zn, (M')(III) = Co, Fe and n is the number of water molecules, which range from 5 to 18 for these compounds. The PBAs were synthesized via standard chemical precipitation methods, and temperature-dependent X-ray diffraction studies were performed in the temperature range between -150 degrees C (123 K) and room-temperature. The vast majority of the studied PBAs were found to crystallize in cubic structures of space groups Fm (3) over barm, F (4) over bar 3m and Pm (3) over barm. The temperature dependence of the lattice parameters was taken to compute an average coefficient of linear thermal expansion in the studied temperature range. Of the 17 compounds, 9 display negative values for the average coefficient of linear thermal expansion, which can be as large as 39.7 x (1)0(-6) K(-1) for Co(3)[Co(CN)(6)](2)center dot 12H(2)O. All of the M(3)(II)[Co(III)(CN)(6)](2)center dot nH(2)O compounds show negative thermal expansion behavior, which correlates with the Irving-Williams series for metal complex stability. The thermal expansion behavior for the PBAs of the M(3)(II)[Fe(III)(CN)(6)](2) center dot nH(2)O family are found to switch between positive (for M = Mn, Co, Ni) and negative (M = Cu, Zn) behavior, depending on the choice of the metal cation (M). On the other hand, all of the M(2)(II)[Fe(II)(CN)(6)] center dot nH(2)O compounds show positive thermal expansion behavior. (C) 2011 Elsevier Inc. All rights reserved.
C1 [Adak, Sourav; Nakotte, Heinz] New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA.
[Adak, Sourav; Daemen, Luke L.; Hartl, Monika] Los Alamos Natl Lab, Los Alamos Neutron Sci Ctr, Los Alamos, NM 87545 USA.
[Williams, Darrick] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
[Summerhill, Jennifer] New Mexico State Univ, Dept Chem & Biochem, Las Cruces, NM 88003 USA.
RP Nakotte, H (reprint author), New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA.
EM hnakotte@nmsu.edu
RI Lujan Center, LANL/G-4896-2012; Hartl, Monika/F-3094-2014; Hartl,
Monika/N-4586-2016
OI Hartl, Monika/0000-0002-6601-7273; Hartl, Monika/0000-0002-6601-7273
FU Department of Energy's (DOE) Office of Basic Energy Sciences; DOE Office
of Basic Energy Sciences. Los Alamos National Laboratory
[DE-AC52-06NA25396]; LANL (DOE) [20110585ER]
FX This research work has been supported by Department of Energy's (DOE)
Office of Basic Energy Sciences and has made use of Manuel Lujan, Jr.
Neutron Scattering Center at Los Alamos National Laboratory which is
funded by DOE Office of Basic Energy Sciences. Los Alamos National
Laboratory is operated by Los Alamos National Security, LLC, under DOE
Contract DE-AC52-06NA25396. JS acknowledges partial support provided by
Shengnian Luo at LANL (DOE grant number: 20110585ER).
NR 35
TC 18
Z9 18
U1 5
U2 42
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0022-4596
J9 J SOLID STATE CHEM
JI J. Solid State Chem.
PD NOV
PY 2011
VL 184
IS 11
BP 2854
EP 2861
DI 10.1016/j.jssc.2011.08.030
PG 8
WC Chemistry, Inorganic & Nuclear; Chemistry, Physical
SC Chemistry
GA 839YA
UT WOS:000296404200005
ER
PT J
AU Dera, P
Lavina, B
Meng, Y
Prakapenka, VB
AF Dera, Przemyslaw
Lavina, Barbara
Meng, Yue
Prakapenka, Vitali B.
TI Structural and electronic evolution of Cr2O3 on compression to 55 GPa
SO JOURNAL OF SOLID STATE CHEMISTRY
LA English
DT Article
DE High pressure; Phase transitions; Optical absorption; Corundum; Ruby;
Eskolaite
ID X-RAY-DIFFRACTION; CRYSTAL-STRUCTURE; HIGH-PRESSURE; RUBY; V2O3;
TEMPERATURE; DEPENDENCE; PHASE; TRANSITION; SPECTRA
AB Synchrotron single-crystal x-ray diffraction experiments have been performed on corundum-type Cr2O3 up to a pressure of 55 GPa in Ne and He pressure transmitting media. Diffraction experiments were complemented by measurements of optical absorption spectra with single crystal samples up to 60 GPa. Results of the diffraction data analysis rule out the earlier reported monoclinic distortion at 15-30 GPa, but indicate evidence of two discontinuous transitions of electronic or magnetic nature, most likely associated with a change in magnetic ordering and charge transfer. The compression mechanism established from single crystal refinements indicates much smaller distortion of the Cr3+ coordination environment than was previously assumed. (C) 2011 Elsevier Inc. All rights reserved.
C1 [Dera, Przemyslaw; Prakapenka, Vitali B.] Univ Chicago, Ctr Adv Radiat Sources, Argonne Natl Lab, Argonne, IL 60439 USA.
[Lavina, Barbara] Univ Nevada, High Pressure Sci & Engn Ctr, Las Vegas, NV 89154 USA.
[Lavina, Barbara] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
[Meng, Yue] Carnegie Inst Washington, HPCAT, Geophys 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
RI Dera, Przemyslaw/F-6483-2013; Lavina, Barbara/A-1015-2010
OI Lavina, Barbara/0000-0002-8556-7916
FU Division of Materials Research, National Science Foundation
[NSF-DMR-0521179]; National Science Foundation; U.S. Department of
Energy; W.M Keck Foundation; U.S. Department of Agriculture; State of
Illinois; CIW; CDAC; UNLV; LLNL through DOE-NNSA, DOE-BES; DOE-BES
[DE-AC02-06CH11357]
FX The authors would like to thank J. Stubbs (Univ. of Chicago) and Y. Feng
(ANL) for critical reading of the manuscript and useful suggestions. We
are also grateful to Prof. R.T. Downs and another anonymous reviewer for
valuable comments and suggestions. This project was supported by a grant
from the MRI Program, Division of Materials Research, National Science
Foundation (NSF-DMR-0521179). Part of this work was performed at GSECARS
(Sector 13), Advanced Photon Source (APS), Argonne National Laboratory.
GSECARS is supported by the National Science Foundation, the U.S.
Department of Energy, the W.M Keck Foundation, the U.S. Department of
Agriculture and the State of Illinois. Portions of this work were
performed at HPCAT (Sector 16), Advanced Photon Source (APS), Argonne
National Laboratory. HPCAT is supported by CIW, CDAC, UNLV and LLNL
through funding from DOE-NNSA, DOE-BES and NSF. APS is supported by
DOE-BES, under Contract no. DE-AC02-06CH11357.
NR 34
TC 17
Z9 17
U1 1
U2 26
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0022-4596
J9 J SOLID STATE CHEM
JI J. Solid State Chem.
PD NOV
PY 2011
VL 184
IS 11
BP 3040
EP 3049
DI 10.1016/j.jssc.2011.09.021
PG 10
WC Chemistry, Inorganic & Nuclear; Chemistry, Physical
SC Chemistry
GA 839YA
UT WOS:000296404200030
ER
PT J
AU Verdal, N
Wu, H
Udovic, TJ
Stavila, V
Zhou, W
Rush, JJ
AF Verdal, Nina
Wu, Hui
Udovic, Terrence J.
Stavila, Vitalie
Zhou, Wei
Rush, John J.
TI Evidence of a transition to reorientational disorder in the cubic
alkali-metal dodecahydro-closo-dodecaborates
SO JOURNAL OF SOLID STATE CHEMISTRY
LA English
DT Article
DE B12F122-; Dodecahydro-closo-dodecaborate; Neutron powder diffraction;
Phase transition; Reorientational disorder
ID NEUTRON-SCATTERING; CRYSTAL-STRUCTURE; KBH4; NMR; BOROHYDRIDES;
DYNAMICS; NABH4; CS
AB A neutron powder diffraction and differential scanning calorimetry (DSC) study indicates that Cs2B12H12 undergoes a second-order phase transition near 529 K that can be described as a reorientational disordering of the B12H122- icosahedral anions between two lowest-energy configurations within the cubic structure. Such a disordering requires the addition of another mirror plane to the low-temperature Fm (3) over bar structural symmetry to become Fm (3) over barm. Differential scanning calorimetry measurements suggest the possible persistence of some short-range anion order at and above the transition. Additional DSC measurements of the lighter alkali-metal cubic isomorphs, Rb2B12H12 and K2B12H12, also indicate second-order transitions for these compounds near 742 K and 811 K, respectively. These results are suggestive of similar order-disorder phase changes as for Cs2B12H12, although confirmation of their existence requires analogous diffraction measurements. Published by Elsevier Inc.
C1 [Verdal, Nina; Wu, Hui; Udovic, Terrence J.; Zhou, Wei; Rush, John J.] NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Wu, Hui; Zhou, Wei; Rush, John J.] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA.
[Stavila, Vitalie] Sandia Natl Labs, Livermore, CA 94551 USA.
RP Verdal, N (reprint author), NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA.
EM nina.verdal@nist.gov
RI Wu, Hui/C-6505-2008; Zhou, Wei/C-6504-2008; Stavila, Vitalie/B-6464-2008
OI Wu, Hui/0000-0003-0296-5204; Zhou, Wei/0000-0002-5461-3617; Stavila,
Vitalie/0000-0003-0981-0432
FU DOE, EERE [DE-AI-01-05EE11104, DE-AC04-94AL85000]
FX This work was partially supported by the DOE through Award nos.
DE-AI-01-05EE11104 and DE-AC04-94AL85000 within the EERE-supported Metal
Hydride Center of Excellence.
NR 28
TC 11
Z9 11
U1 1
U2 9
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0022-4596
J9 J SOLID STATE CHEM
JI J. Solid State Chem.
PD NOV
PY 2011
VL 184
IS 11
BP 3110
EP 3116
DI 10.1016/j.jssc.2011.09.010
PG 7
WC Chemistry, Inorganic & Nuclear; Chemistry, Physical
SC Chemistry
GA 839YA
UT WOS:000296404200040
ER
PT J
AU Lu, XH
Mochrie, SGJ
Narayanan, S
Sandy, AR
Sprung, M
AF Lu, Xinhui
Mochrie, S. G. J.
Narayanan, S.
Sandy, A. R.
Sprung, M.
TI X-ray near-field speckle: implementation and critical analysis
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE X-ray; near field; speckle; spectroscopy; scattering
ID PHOTON-CORRELATION SPECTROSCOPY; HIGH BRILLIANCE BEAMLINE; SCATTERING
APPARATUS; RESOLUTION; PARTICLES; CAMERA; ESRF
AB The newly introduced coherence-based technique of X-ray near-field speckle (XNFS) has been implemented at 8-ID-I at the Advanced Photon Source. In the near-field regime of high-brilliance synchrotron X-rays scattered from a sample of interest, it turns out that, when the scattered radiation and the main beam both impinge upon an X-ray area detector, the measured intensity shows low-contrast speckles, resulting from interference between the incident and scattered beams. A micrometer-resolution XNFS detector with a high numerical aperture microscope objective has been built and its capability for studying static structures and dynamics at longer length scales than traditional far-field X-ray scattering techniques is demonstrated. Specifically, the dynamics of dilute silica and polystyrene colloidal samples are characterized. This study reveals certain limitations of the XNFS technique, especially in the characterization of static structures, which is discussed.
C1 [Lu, Xinhui; Mochrie, S. G. J.] Yale Univ, Dept Phys, New Haven, CT 06511 USA.
[Mochrie, S. G. J.] Yale Univ, Dept Appl Phys, New Haven, CT 06511 USA.
[Narayanan, S.; Sandy, A. R.; Sprung, M.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Lu, XH (reprint author), Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA.
EM xlu@bnl.gov
FU NSF [DMR 0906697]; DOE
FX We thank T. Chiba, A. Mack, E. R. Dufresne, R. L. Leheny, C. O'Hern, S.
Sanis, M. Spannuth and J. Wettlaufer for discussions, and the NSF for
support via DMR 0906697. The APS is supported by the DOE.
NR 24
TC 4
Z9 4
U1 1
U2 7
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0909-0495
J9 J SYNCHROTRON RADIAT
JI J. Synchrot. Radiat.
PD NOV
PY 2011
VL 18
BP 823
EP 834
DI 10.1107/S0909049511037149
PN 6
PG 12
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA 844GT
UT WOS:000296736400001
PM 21997906
ER
PT J
AU Honnicke, MG
Keister, JW
Conley, R
Kaznatcheev, K
Takacs, PZ
Coburn, DS
Reffi, L
Cai, YQ
AF Honnicke, Marcelo G.
Keister, Jeffrey W.
Conley, Raymond
Kaznatcheev, Konstantine
Takacs, Peter Z.
Coburn, David Scott
Reffi, Leo
Cai, Yong Q.
TI Synchrotron X-ray tests of an L-shaped laterally graded multilayer
mirror for the analyzer system of the ultra-high-resolution IXS
spectrometer at NSLS-II
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE X-ray optics; X-ray mirrors; L-shaped mirror; nested mirror; Montel
optics; Kirkpatrick-Baez geometry
ID DIFFRACTION; OPTICS
AB Characterization and testing of an L-shaped laterally graded multilayer mirror are presented. This mirror is designed as a two-dimensional collimating optics for the analyzer system of the ultra-high-resolution inelastic X-ray scattering (IXS) spectrometer at National Synchrotron Light Source II (NSLS-II). The characterization includes point-to-point reflectivity measurements, lattice parameter determination and mirror metrology (figure, slope error and roughness). The synchrotron X-ray test of the mirror was carried out reversely as a focusing device. The results show that the L-shaped laterally graded multilayer mirror is suitable to be used, with high efficiency, for the analyzer system of the IXS spectrometer at NSLS-II.
C1 [Honnicke, Marcelo G.; Keister, Jeffrey W.; Conley, Raymond; Kaznatcheev, Konstantine; Coburn, David Scott; Reffi, Leo; Cai, Yong Q.] Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA.
[Takacs, Peter Z.] Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA.
RP Cai, YQ (reprint author), Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA.
EM cai@bnl.gov
RI Conley, Ray/C-2622-2013; Cai, Yong/C-5036-2008; Honnicke,
Marcelo/I-8624-2012
OI Cai, Yong/0000-0002-9957-6426;
FU US Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC-02-98CH10886]
FX This work was supported by the US Department of Energy, Office of
Science, Office of Basic Energy Sciences, under contract No.
DE-AC-02-98CH10886.
NR 17
TC 10
Z9 10
U1 1
U2 6
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0909-0495
J9 J SYNCHROTRON RADIAT
JI J. Synchrot. Radiat.
PD NOV
PY 2011
VL 18
BP 862
EP 870
DI 10.1107/S0909049511031098
PN 6
PG 9
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA 844GT
UT WOS:000296736400005
PM 21997910
ER
PT J
AU Huang, XR
AF Huang, Xian-Rong
TI An alternative scheme of angular-dispersion analyzers for
high-resolution medium-energy inelastic X-ray scattering
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE X-ray optics; inelastic X-ray scattering; monochromator; analyzer
ID DIFFRACTION; SPECTROSCOPY
AB The development of medium-energy inelastic X-ray scattering optics with meV and sub-meV resolution has attracted considerable efforts in recent years. Meanwhile, there are also concerns or debates about the fundamental and feasibility of the involved schemes. Here the central optical component, the back-reflection angular-dispersion monochromator or analyzer, is analyzed. The results show that the multiple-beam diffraction effect together with transmission-induced absorption can noticeably reduce the diffraction efficiency, although it may not be a fatal threat. In order to improve the efficiency, a simple four-bounce analyzer is proposed that completely avoids these two adverse effects. The new scheme is illustrated to be a feasible alternative approach for developing meV-to sub-meV-resolution inelastic X-ray scattering spectroscopy.
C1 Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Huang, XR (reprint author), Argonne Natl Lab, Adv Photon Source, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM xiahuang@aps.anl.gov
FU US Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]
FX The author is grateful to L. Young and M. Beno for encouragement and
support. Thanks are also due to Y. Q. Cai, D. P. Siddons, M. G. Honnicke
and L. Assoufid for helpful discussions. This work was supported by the
US Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Contract No. DE-AC02-06CH11357.
NR 18
TC 9
Z9 9
U1 0
U2 2
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0909-0495
J9 J SYNCHROTRON RADIAT
JI J. Synchrot. Radiat.
PD NOV
PY 2011
VL 18
BP 899
EP 906
DI 10.1107/S0909049511036703
PN 6
PG 8
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA 844GT
UT WOS:000296736400010
PM 21997915
ER
PT J
AU Bilderback, DH
Mills, DM
AF Bilderback, Donald H.
Mills, Dennis M.
TI Boris W. Batterman (1930-2010) obituary
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Biographical-Item
C1 [Bilderback, Donald H.] Cornell Univ, Ithaca, NY 14853 USA.
[Mills, Dennis M.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Bilderback, DH (reprint author), Cornell Univ, Ithaca, NY 14853 USA.
EM dhb2@cornell.edu; dmm@aps.anl.gov
NR 1
TC 0
Z9 0
U1 2
U2 3
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0909-0495
J9 J SYNCHROTRON RADIAT
JI J. Synchrot. Radiat.
PD NOV
PY 2011
VL 18
BP 942
EP 943
DI 10.1107/S0909049511040258
PN 6
PG 2
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA 844GT
UT WOS:000296736400017
ER
PT J
AU Cerjan, A
Cerjan, C
AF Cerjan, Alexander
Cerjan, Charles
TI Orbital angular momentum of Laguerre-Gaussian beams beyond the paraxial
approximation
SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND
VISION
LA English
DT Article
ID FIELD COMPONENTS; LIGHT; PROPAGATION; VACUUM; VECTOR
AB We derive a full field solution for Laguerre-Gaussian beams consistent with the Helmholtz equation using the angular spectrum method. Field components are presented as an order expansion in the ratio of the wavelength to the beam waist, f = lambda/(2 pi omega(0)), which is typically small. The result is then generalized to a beam of arbitrary polarization. This result is then used to reproduce the signature angular momentum properties of Laguerre-Gaussian beams in the paraxial limit. The subsequent higher-order term is similarly obtained, which does not display a clear separation of orbital and spin angular momentum components. c 2011 Optical Society of America
C1 [Cerjan, Alexander] Yale Univ, Dept Phys, New Haven, CT 06520 USA.
[Cerjan, Charles] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Cerjan, A (reprint author), Yale Univ, Dept Phys, New Haven, CT 06520 USA.
EM alexander.cerjan@yale.edu
FU U.S. Department of Energy by the Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by the Lawrence Livermore National Laboratory under contract
DE-AC52-07NA27344. The authors would like to thank the referees whose
helpful comments and suggested references greatly improved this work.
NR 24
TC 8
Z9 11
U1 1
U2 7
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1084-7529
J9 J OPT SOC AM A
JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis.
PD NOV
PY 2011
VL 28
IS 11
BP 2253
EP 2260
PG 8
WC Optics
SC Optics
GA 842IV
UT WOS:000296592600007
PM 22048292
ER
PT J
AU Ringler, TD
Jacobsen, D
Gunzburger, M
Ju, LL
Duda, M
Skamarock, W
AF Ringler, Todd D.
Jacobsen, Doug
Gunzburger, Max
Ju, Lili
Duda, Michael
Skamarock, William
TI Exploring a Multiresolution Modeling Approach within the Shallow-Water
Equations
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID SPHERICAL GEODESIC GRIDS; CENTROIDAL VORONOI TESSELLATIONS; CONSERVATIVE
TRANSPORT SCHEMES; BAROTROPIC VORTICITY EQUATION; CLIMATE-CHANGE; CLOUD
PARAMETERIZATION; DYNAMICAL CORES; CIRCULATION; INTEGRATION; SIMULATION
AB The ability to solve the global shallow-water equations with a conforming, variable-resolution mesh is evaluated using standard shallow-water test cases. While the long-term motivation for this study is the creation of a global climate modeling framework capable of resolving different spatial and temporal scales in different regions, the process begins with an analysis of the shallow-water system in order to better understand the strengths and weaknesses of the approach developed herein. The multiresolution meshes are spherical centroidal Voronoi tessellations where a single, user-supplied density function determines the region(s) of fine- and coarse-mesh resolution. The shallow-water system is explored with a suite of meshes ranging from quasi-uniform resolution meshes, where the grid spacing is globally uniform, to highly variable resolution meshes, where the grid spacing varies by a factor of 16 between the fine and coarse regions. The potential vorticity is found to be conserved to within machine precision and the total available energy is conserved to within a time-truncation error. This result holds for the full suite of meshes, ranging from quasi-uniform resolution and highly variable resolution meshes. Based on shallow-water test cases 2 and 5, the primary conclusion of this study is that solution error is controlled primarily by the grid resolution in the coarsest part of the model domain. This conclusion is consistent with results obtained by others. When these variable-resolution meshes are used for the simulation of an unstable zonal jet, the core features of the growing instability are found to be largely unchanged as the variation in the mesh resolution increases. The main differences between the simulations occur outside the region of mesh refinement and these differences are attributed to the additional truncation error that accompanies increases in grid spacing. Overall, the results demonstrate support for this approach as a path toward multiresolution climate system modeling.
C1 [Ringler, Todd D.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Jacobsen, Doug; Gunzburger, Max] Florida State Univ, Tallahassee, FL 32306 USA.
[Ju, Lili] Univ S Carolina, Columbia, SC 29208 USA.
[Duda, Michael; Skamarock, William] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
RP Ringler, TD (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM ringler@lanl.gov
FU Biological and Environmental Research Division of the U.S. Department of
Energy's Office of Science [DE-FG02-07ER64431, DE-FG02-07ER64432, DOE
07SCPF152]; National Science Foundation
FX This work was supported by the Biological and Environmental Research
Division of the U.S. Department of Energy's Office of Science through
DE-FG02-07ER64431, DE-FG02-07ER64432, and DOE 07SCPF152. The National
Center for Atmospheric Research is sponsored by the National Science
Foundation.
NR 66
TC 43
Z9 43
U1 0
U2 7
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0027-0644
EI 1520-0493
J9 MON WEATHER REV
JI Mon. Weather Rev.
PD NOV
PY 2011
VL 139
IS 11
BP 3348
EP 3368
DI 10.1175/MWR-D-10-05049.1
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 840XP
UT WOS:000296475700002
ER
PT J
AU Kong, DS
Chen, YL
Cha, JJ
Zhang, QF
Analytis, JG
Lai, KJ
Liu, ZK
Hong, SS
Koski, KJ
Mo, SK
Hussain, Z
Fisher, IR
Shen, ZX
Cui, Y
AF Kong, Desheng
Chen, Yulin
Cha, Judy J.
Zhang, Qianfan
Analytis, James G.
Lai, Keji
Liu, Zhongkai
Hong, Seung Sae
Koski, Kristie J.
Mo, Sung-Kwan
Hussain, Zahid
Fisher, Ian R.
Shen, Zhi-Xun
Cui, Yi
TI Ambipolar field effect in the ternary topological insulator
(BixSb1-x)(2)Te-3 by composition tuning
SO NATURE NANOTECHNOLOGY
LA English
DT Article
ID HGTE QUANTUM-WELLS; SINGLE DIRAC CONE; PHASE-TRANSITION; SURFACE-STATES;
BI2SE3; BI2TE3; LIMIT; NANORIBBONS; TRANSPORT; FILMS
AB Topological insulators exhibit a bulk energy gap and spin-polarized surface states that lead to unique electronic properties(1-9), with potential applications in spintronics and quantum information processing. However, transport measurements have typically been dominated by residual bulk charge carriers originating from crystal defects or environmental doping(10-12), and these mask the contribution of surface carriers to charge transport in these materials. Controlling bulk carriers in current topological insulator materials, such as the binary sesquichalcogenides Bi2Te3, Sb2Te3 and Bi2Se3, has been explored extensively by means of material doping(8,9,11) and electrical gating(13-16), but limited progress has been made to achieve nanostructures with low bulk conductivity for electronic device applications. Here we demonstrate that the ternary sesquichalcogenide (BixSb1-x)(2)Te-3 is a tunable topological insulator system. By tuning the ratio of bismuth to antimony, we are able to reduce the bulk carrier density by over two orders of magnitude, while maintaining the topological insulator properties. As a result, we observe a clear ambipolar gating effect in (BixSb1-x)(2)Te-3 nanoplate field-effect transistor devices, similar to that observed in graphene field-effect transistor devices(17). The manipulation of carrier type and density in topological insulator nanostructures demonstrated here paves the way for the implementation of topological insulators in nanoelectronics and spintronics.
C1 [Kong, Desheng; Cha, Judy J.; Zhang, Qianfan; Koski, Kristie J.; Cui, Yi] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.
[Chen, Yulin; Analytis, James G.; Lai, Keji; Liu, Zhongkai; Hong, Seung Sae; Fisher, Ian R.; Shen, Zhi-Xun] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA.
[Chen, Yulin; Lai, Keji; Liu, Zhongkai; Shen, Zhi-Xun] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Chen, Yulin; Analytis, James G.; Liu, Zhongkai; Fisher, Ian R.; Shen, Zhi-Xun; Cui, Yi] SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, Menlo Pk, CA 94025 USA.
[Mo, Sung-Kwan; Hussain, Zahid] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Kong, DS (reprint author), Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.
EM yicui@stanford.edu
RI Cha, Judy /H-5483-2011; Chen, Yulin/C-1918-2012; Mo,
Sung-Kwan/F-3489-2013; Cui, Yi/L-5804-2013; Kong, Desheng/G-2641-2015
OI Mo, Sung-Kwan/0000-0003-0711-8514; Cui, Yi/0000-0002-6103-6352; Kong,
Desheng/0000-0002-7339-7593
FU Keck Foundation; DARPA [N66001-11-1-4105]; King Abdullah University of
Science and Technology (KAUST) [KUS-l1-001-12, KUS-F1-033-02];
Department of Energy, Office of Basic Energy Science [DE-AC02-76SF00515]
FX Y.C. acknowledges support from the Keck Foundation, a DARPA MESO project
(no. N66001-11-1-4105) and a King Abdullah University of Science and
Technology (KAUST) Investigator Award (no. KUS-l1-001-12). Y.L.C.
acknowledges support from a DARPA MESO project (no. N66001-11-1-4105).
Z.K.L., Z.X.S., Y.L.C., J.G.A. and I. R. F. acknowledge support from
Department of Energy, Office of Basic Energy Science (contract
DE-AC02-76SF00515). K. L. acknowledges support from the KAUST
Postdoctoral Fellowship (no. KUS-F1-033-02).
NR 31
TC 174
Z9 176
U1 11
U2 151
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1748-3387
J9 NAT NANOTECHNOL
JI Nat. Nanotechnol.
PD NOV
PY 2011
VL 6
IS 11
BP 705
EP 709
DI 10.1038/NNANO.2011.172
PG 5
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 844HC
UT WOS:000296737300007
PM 21963714
ER
PT J
AU Giebink, NC
Wiederrecht, GP
Wasielewski, MR
AF Giebink, Noel C.
Wiederrecht, Gary P.
Wasielewski, Michael R.
TI Resonance-shifting to circumvent reabsorption loss in luminescent solar
concentrators
SO NATURE PHOTONICS
LA English
DT Article
ID EFFICIENCY; COLLECTOR; EMISSION; SYSTEMS
AB Luminescent solar concentrators (LSCs) provide a simple means to concentrate sunlight without tracking the Sun. These devices absorb and then re-emit light at a lower frequency into the confined modes of a transparent slab, where it is guided towards photovoltaic cells attached to the slab edges. In the thermodynamic limit, a concentration ratio exceeding the equivalent of 100 suns is possible, but, in actual LSCs, optical propagation loss (due mostly to reabsorption) limits the concentration ratio to similar to 10. Here, we introduce a general, all-optical means to overcome this problem by 'resonance-shifting', in which sharply directed emission from a bilayer cavity into the glass substrate returns to interact with the cavity off-resonance at each subsequent bounce, significantly reducing reabsorption loss en route to the edges. Using this strategy, we demonstrate near-lossless propagation for several different chromophores, which ultimately enables a more than twofold increase in concentration ratio over that of the corresponding conventional LSC.
C1 [Giebink, Noel C.; Wiederrecht, Gary P.; Wasielewski, Michael R.] Northwestern Univ, Argonne NW Solar Energy Res Ctr ANSER, Evanston, IL 60208 USA.
[Wasielewski, Michael R.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Giebink, Noel C.; Wiederrecht, Gary P.; Wasielewski, Michael R.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
RP Giebink, NC (reprint author), Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA.
EM ncg2@psu.edu
FU Center for Nanoscale Materials; US Department of Energy, Office of Basic
Energy Sciences [DE-AC02-06CH11357]; US Department of Energy, Office of
Science, Office of Basic Energy Sciences [DE-SC0001059]
FX N.C.G. and G. P. W. acknowledge support from the Center for Nanoscale
Materials for the experimental portion of this work, which was supported
by the US Department of Energy, Office of Basic Energy Sciences
(contract no. DE-AC02-06CH11357). N.C.G., G. P. W. and M. R. W.
acknowledge support for data analysis and manuscript preparation as part
of the ANSER Center, an Energy Frontier Research Center funded by the US
Department of Energy, Office of Science, Office of Basic Energy Sciences
(award no. DE-SC0001059).
NR 38
TC 55
Z9 55
U1 5
U2 44
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1749-4885
J9 NAT PHOTONICS
JI Nat. Photonics
PD NOV
PY 2011
VL 5
IS 11
BP 695
EP 702
DI 10.1038/NPHOTON.2011.236
PG 8
WC Optics; Physics, Applied
SC Optics; Physics
GA 843WF
UT WOS:000296706100015
ER
PT J
AU Goldstein, RZ
Volkow, ND
AF Goldstein, Rita Z.
Volkow, Nora D.
TI Dysfunction of the prefrontal cortex in addiction: neuroimaging findings
and clinical implications
SO NATURE REVIEWS NEUROSCIENCE
LA English
DT Review
ID ANTERIOR CINGULATE CORTEX; POSITRON-EMISSION-TOMOGRAPHY; MEDIAL
ORBITOFRONTAL CORTEX; COCAINE-DEPENDENT PATIENTS; SELF-MEDICATION
HYPOTHESIS; ADOLESCENT MARIJUANA USERS; OPPONENT-PROCESS THEORY; SALIENT
COGNITIVE TASK; CEREBRAL-BLOOD-FLOW; GRAY-MATTER
AB The loss of control over drug intake that occurs in addiction was initially believed to result from disruption of subcortical reward circuits. However, imaging studies in addictive behaviours have identified a key involvement of the prefrontal cortex (PFC) both through its regulation of limbic reward regions and its involvement in higher-order executive function (for example, self-control, salience attribution and awareness). This Review focuses on functional neuroimaging studies conducted in the past decade that have expanded our understanding of the involvement of the PFC in drug addiction. Disruption of the PFC in addiction underlies not only compulsive drug taking but also accounts for the disadvantageous behaviours that are associated with addiction and the erosion of free will.
C1 [Goldstein, Rita Z.] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
[Volkow, Nora D.] NIAAA, Bethesda, MD 20892 USA.
[Volkow, Nora D.] Natl Inst Drug Abuse, Bethesda, MD 20892 USA.
RP Goldstein, RZ (reprint author), Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
EM rgoldstein@bnl.gov
FU US National Institute on Drug Abuse [R01DA023579]; NIAAA; Department of
Energy, Office of Biological and Environmental Research
FX This study was supported by grants from the US National Institute on
Drug Abuse (R01DA023579 to R. Z. G.), the Intramural NIAAA program and
the Department of Energy, Office of Biological and Environmental
Research (for infrastructure support). We are grateful for A. B.
Konova's contribution to the design of figure 2. We are indebted to our
reviewers whose comments were greatly appreciated and guided our
revision of the original manuscript.
NR 222
TC 488
Z9 499
U1 26
U2 167
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1471-003X
J9 NAT REV NEUROSCI
JI Nat. Rev. Neurosci.
PD NOV
PY 2011
VL 12
IS 11
BP 652
EP 669
DI 10.1038/nrn3119
PG 18
WC Neurosciences
SC Neurosciences & Neurology
GA 842GU
UT WOS:000296584400011
PM 22011681
ER
PT J
AU Kim, BG
Rempe, JL
Villard, JF
Solstad, S
AF Kim, Bong Goo
Rempe, Joy L.
Villard, Jean-Francois
Solstad, Steinar
TI REVIEW OF INSTRUMENTATION FOR IRRADIATION TESTING OF NUCLEAR FUELS AND
MATERIALS
SO NUCLEAR TECHNOLOGY
LA English
DT Review
DE instrumentation; irradiation testing; material test reactors
ID HALDEN REACTOR PROJECT; HOT-WIRE METHOD; THERMAL-CONDUCTIVITY;
HIGH-TEMPERATURE; NEUTRON-IRRADIATION; FISSION REACTOR; SILICON-CARBIDE;
OPTICAL-FIBERS; ANNEALING BEHAVIOR; RADIATION
AB Over 50 years of nuclear fuels and materials irradiation testing has led to many countries developing significant improvements in instrumentation to monitor physical parameters and to control the test conditions in material test reactors (MTRs). Recently, there is increased interest to irradiate new materials and reactor fuels for advanced pressurized water reactors and Gen-IV reactor systems, such as sodium-cooled fast reactors, very high temperature reactors, supercritical water cooled reactors, and gas-cooled fast reactors. This review paper documents the current state of instrumentation technologies in MTRs in the world and summarizes ongoing research efforts to deploy new sensors. As described in this paper, a wide range of sensors is available to measure key parameters of interest during fuels and materials irradiations in MTRs. Ongoing development efforts focus on providing MTR users a wider range of parameter measurements with smaller, higher accuracy sensors.
C1 [Kim, Bong Goo] Korea Adv Energy Res Inst, Taejon 305353, South Korea.
[Rempe, Joy L.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Villard, Jean-Francois] CEA Cadarache, F-13108 St Paul Les Durance, France.
[Solstad, Steinar] Inst Energy Technol, N-1751 Halden, Norway.
RP Kim, BG (reprint author), Korea Adv Energy Res Inst, 989-111 Daedeok Daero, Taejon 305353, South Korea.
EM bgkim1@kaeri.re.kr
OI Rempe, Joy/0000-0001-5527-3549
FU Ministry of Education, Science and Technology (MEST) of the Republic of
Korea; National Nuclear Research and Development Program; U.S.
Department of Energy's Office of Nuclear Energy, Science, and Technology
under DOE-NE Idaho Operations Office [DE AC07 05ID14517]; French
Commissariat a l'Energie Atomique et aux Energies Alternatives, Nuclear
Energy Division; CEA; Belgian Research Centre for Nuclear Energy
(SCK.CEN)
FX The authors would like to acknowledge the National Research Foundation
for the award of a grant funded by the Ministry of Education, Science
and Technology (MEST) of the Republic of Korea, in support of this work
through the National Nuclear Research and Development Program. This work
was also supported by the U.S. Department of Energy's Office of Nuclear
Energy, Science, and Technology under DOE-NE Idaho Operations Office
contract DE AC07 05ID14517. This work has also benefited from CEA's
INSNU Project supported by the French Commissariat a l'Energie Atomique
et aux Energies Alternatives, Nuclear Energy Division. The work
described in this paper as a part of the Joint Instrumentation
Laboratory activity is supported with balanced funding by the CEA and
the Belgian Research Centre for Nuclear Energy (SCK.CEN). Work to
complete this paper has also been performed within the scope of the
Halden Reactor Project and Institute for Energy Technology.
NR 104
TC 9
Z9 9
U1 2
U2 15
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5450
J9 NUCL TECHNOL
JI Nucl. Technol.
PD NOV
PY 2011
VL 176
IS 2
BP 155
EP 187
PG 33
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 841BT
UT WOS:000296488000001
ER
PT J
AU Yesilyurt, G
Clarno, KT
Evans, TM
Davidson, GG
Fox, PB
AF Yesilyurt, G.
Clarno, K. T.
Evans, T. M.
Davidson, G. G.
Fox, P. B.
TI A C5 BENCHMARK PROBLEM WITH THE DISCRETE ORDINATES RADIATION TRANSPORT
CODE DENOVO
SO NUCLEAR TECHNOLOGY
LA English
DT Article
DE Denovo; C5 benchmark problem; radiation transport
AB The C5 benchmark problem proposed by the Organisation for Economic Co-operation and Development/Nuclear Energy Agency was modeled to examine the capabilities of Denovo, a three-dimensional (3-D) parallel discrete ordinates (S(N)) radiation transport code, for problems with no spatial homogenization. Denovo uses state-of-the-art numerical methods to obtain accurate solutions to the Boltzmann transport equation. Problems were run in parallel on Jaguar, a high-performance supercomputer located at Oak Ridge National Laboratory. Both the two-dimensional (2-D) and 3-D configurations were analyzed, and the results were compared with the reference MCNP Monte Carlo calculations. For an additional comparison, SCALE/KENO-V.a Monte Carlo solutions were also included. In addition, a sensitivity analysis was performed for the optimal angular quadrature and mesh resolution for both the 2-D and 3-D infinite lattices of UO(2) fuel pin cells. Denovo was verified with the C5 problem. The effective multiplication factors, pin powers, and assembly powers were found to be in good agreement with the reference MCNP and SCALE/KENO-V.a Monte Carlo calculations.
C1 [Yesilyurt, G.; Clarno, K. T.; Evans, T. M.; Davidson, G. G.; Fox, P. B.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Yesilyurt, G (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
OI Clarno, Kevin/0000-0002-5999-2978
NR 10
TC 1
Z9 1
U1 0
U2 2
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5450
J9 NUCL TECHNOL
JI Nucl. Technol.
PD NOV
PY 2011
VL 176
IS 2
BP 274
EP 283
PG 10
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 841BT
UT WOS:000296488000008
ER
PT J
AU Tranter, TJ
Tillotson, RD
Mann, NR
Longhurst, GR
AF Tranter, Troy J.
Tillotson, Richard D.
Mann, Nick R.
Longhurst, Glen R.
TI SEPARATION OF TRANSMUTATION- AND FISSION-PRODUCED RADIOISOTOPES FROM
IRRADIATED BERYLLIUM
SO NUCLEAR TECHNOLOGY
LA English
DT Article
DE beryllium; solvent extraction; decontamination
ID ACIDIC TANK WASTE; IONSIV(TM) IE-911; AMP-PAN; CESIUM; REMOVAL;
STRONTIUM
AB The primary objective of this study was to test the effectiveness of a two-step solvent extraction-precipitation process for separating transmutation and fission products from irradiated beryllium. Beryllium metal was dissolved in nitric and fluoroboric acids. Isotopes of (241)Am, (239)pu, 85 sr, (60)Co, and (137)Cs were then added to make a surrogate beryllium waste solution. A series of batch contacts was performed with the spiked simulant using chlorinated cobalt dicarbollide and polyethylene glycol diluted with sulfone to extract the isotopes of Cs and Sr. Another series of batch contacts was performed using a combination of octyl (phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide in tributyl phosphate diluted with dodecane for extracting the isotopes of Pu and Am. The (60)Co was separated by first forming a cobalt complex and then selectively precipitating the beryllium as a hydroxide. The results indicate that >99.9% removal can be achieved for each radionuclide. Transuranic isotope contamination levels are reduced to <100 nCi/g, and sources of high beta-gamma radiation ((60)co, (137)Cs, and (90)Sr) are reduced to levels that will allow the beryllium to be contact handled. The separation process may be applicable to a recycle or waste disposition scenario.
C1 [Tranter, Troy J.; Tillotson, Richard D.; Mann, Nick R.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Longhurst, Glen R.] So Utah Univ, Cedar City, UT 84720 USA.
RP Tranter, TJ (reprint author), Idaho Natl Lab, POB 1625, Idaho Falls, ID 83415 USA.
EM Nick.Mann@inl.gov
NR 10
TC 2
Z9 2
U1 2
U2 2
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5450
J9 NUCL TECHNOL
JI Nucl. Technol.
PD NOV
PY 2011
VL 176
IS 2
BP 290
EP 295
PG 6
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 841BT
UT WOS:000296488000010
ER
PT J
AU Skinner, K
Housley, G
Shelton-Davis, C
AF Skinner, Kevin
Housley, Greg
Shelton-Davis, Colleen
TI A FRUIT OF YUCCA MOUNTAIN: THE REMOTE WASTE PACKAGE CLOSURE SYSTEM
SO NUCLEAR TECHNOLOGY
LA English
DT Article
DE robotics; remote operation; welding
AB Was the death of the Yucca Mountain repository the fate of a technical lemon or a political lemon? We must be careful not to let this debate lure us away from capitalizing on the fruits of the project. One such fruit is a system for safely sealing packages containing radioactive nuclear waste. In March 2009, Idaho National Laboratory (INL) successfully demonstrated the Waste Package Closure System (WPCS), a full-scale prototype system for closing waste packages (WPs) that were to be entombed in the now-abandoned Yucca Mountain repository. This paper describes the system and components, which INL designed and built, to weld the closure lids on the WPs, nondestructively examine the welds using four different techniques, repair the welds if necessary, mitigate crack-initiating stresses in the surfaces of the welds, evacuate and backfill the WPs with an inert gas, and perform all of these tasks remotely. As a nation, we now have a proven method for securely sealing nuclear WPs for long-term storage-regardless of whether the future destination for these WPs will be an underground repository. Additionally, many of the WPCS's features and concepts may benefit other remote nuclear applications.
C1 [Skinner, Kevin; Housley, Greg; Shelton-Davis, Colleen] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Skinner, K (reprint author), Idaho Natl Lab, POB 1625, Idaho Falls, ID 83415 USA.
EM colleen.shelton-davis@inl.gov
FU DOE [DE-AC07-05ID14517]
FX The WPCS was designed by INL under the direction of Bechtel SAIC
Company, LLC, the DOE's prime contractor for the Yucca Mountain project.
INL was selected for this work based upon prior experience designing and
closing SNF canisters for the DOE, as well as for extensive research and
development in welding, inspection, control, and robotics. A large,
dedicated team of experts in these fields and other disciplines is
credited for the successful design, fabrication, and testing of the
WPCS. INL performed the work under DOE contract DE-AC07-05ID14517.
NR 5
TC 1
Z9 1
U1 0
U2 0
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5450
J9 NUCL TECHNOL
JI Nucl. Technol.
PD NOV
PY 2011
VL 176
IS 2
BP 296
EP 308
PG 13
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 841BT
UT WOS:000296488000011
ER
PT J
AU Crowder, ML
Laurinat, JE
Stillman, JA
AF Crowder, Mark L.
Laurinat, James E.
Stillman, John A.
TI MEASUREMENT OF TRITIUM DURING VOLOXIDATION OF ZIRCALOY-2 CLADDING
SO NUCLEAR TECHNOLOGY
LA English
DT Article
DE tritium voloxidation; Zircaloy oxidation; fuel cladding hull
ID FUEL; OXIDATION; DIFFUSION; ZIRCONIUM; RELEASE; ALLOYS; AIR
AB A straightforward method to determine the tritium content of Zircaloy-2 cladding hulls via oxidation of the hulls and capture of the volatilized tritium in liquids has been demonstrated. Hull samples were heated in air inside a thermogravimetric analyzer (TGA). The TGA was rapidly heated to 1000 degrees C to oxidize the hulls and to release absorbed tritium. To capture tritium, the TGA off-gas was bubbled through a series of liquid traps. The concentrations of tritium in bubbler solutions indicated that nearly all of the tritiated water vapor was captured. The average tritium content measured in the hulls was 19% of the amount of tritium produced by the fuel, according to ORIGEN2 isotope generation and depletion calculations. Published experimental data show that there is an initial, nonlinear oxidation rate for Zircaloy-2 followed by a faster, linear rate after "breakaway" of the oxide film and that the linear rate follows an Arrhenius model. This study demonstrates that the linear oxidation rate of Zircaloy samples at 974 degrees C is faster than predicted by the extrapolation of data from lower temperatures.
C1 [Crowder, Mark L.; Laurinat, James E.] Savannah River Natl Lab, Aiken, SC 29808 USA.
[Stillman, John A.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Crowder, ML (reprint author), Savannah River Natl Lab, Aiken, SC 29808 USA.
EM mark.crowder@srnl.doe.gov
FU U.S. Department of Energy via the SRNL Laboratory
FX The first two authors gratefully acknowledge the help of the actinide
research team at the SRNL and funding from the U.S. Department of Energy
via the SRNL Laboratory Directed Research and Development program.
NR 17
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Z9 0
U1 0
U2 4
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5450
J9 NUCL TECHNOL
JI Nucl. Technol.
PD NOV
PY 2011
VL 176
IS 2
BP 309
EP 313
PG 5
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 841BT
UT WOS:000296488000012
ER
PT J
AU Hughes, AM
Pozzi, ECC
Heber, EM
Thorp, S
Miller, M
Itoiz, ME
Aromando, RF
Molinari, AJ
Garabalino, MA
Nigg, DW
Trivillin, VA
Schwint, AE
AF Monti Hughes, Andrea
Pozzi, Emiliano C. C.
Heber, Elisa M.
Thorp, Silvia
Miller, Marcelo
Itoiz, Maria E.
Aromando, Romina F.
Molinari, Ana J.
Garabalino, Marcela A.
Nigg, David W.
Trivillin, Veronica A.
Schwint, Amanda E.
TI Boron Neutron Capture Therapy (BNCT) in an oral precancer model:
Therapeutic benefits and potential toxicity of a double application of
BNCT with a six-week interval
SO ORAL ONCOLOGY
LA English
DT Article
DE Boron Neutron Capture Therapy (BNCT); Oral cancer; Hamster cheek pouch;
Premalignant tissue; Second primary tumors; Mucositis;
Boronophenylalanine (BPA); GB-10
ID HAMSTER-CHEEK POUCH; SQUAMOUS-CELL CARCINOMA; CANCER MODEL;
CARCINOGENESIS; RADIOBIOLOGY; HEAD; MECHANISMS; TISSUE; TUMORS; GB-10
AB Given the clinical relevance of locoregional recurrences in head and neck cancer, we developed a novel experimental model of premalignant tissue in the hamster cheek pouch for long-term studies and demonstrated the partial inhibitory effect of a single application of Boron Neutron Capture Therapy (BNCT) on tumor development from premalignant tissue. The aim of the present study was to evaluate the effect of a double application of BNCT with a 6 week interval in terms of inhibitory effect on tumor development, toxicity and DNA synthesis. We performed a double application, 6 weeks apart, of (1) BNCT mediated by boronophenylalanine (BPA-BNCT); (2) BNCT mediated by the combined application of decahydrode-caborate (GB-10) and BPA [(GB-10 + BPA)-BNCT] or (3) beam-only, at RA-3 nuclear reactor and followed the animals for 8 months. The control group was cancerized and sham-irradiated. BPA-BNCT, (GB-10 + BPA)-BNCT and beam-only induced a reduction in tumor development from premalignant tissue that persisted until 8, 3, and 2 months respectively. An early maximum inhibition of 100% was observed for all 3 protocols. No normal tissue radiotoxicity was detected. Reversible mucositis was observed in premalignant tissue, peaking at 1 week and resolving by the third week after each irradiation. Mucositis after the second application was not exacerbated by the first application. DNA synthesis was significantly reduced in premalignant tissue 8 months post-BNCT. A double application of BPA-BNCT and (GB-10 + BPA)-BNCT, 6 weeks apart, could be used therapeutically at no additional cost in terms of radiotoxicity in normal and dose-limiting tissues. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Monti Hughes, Andrea; Pozzi, Emiliano C. C.; Heber, Elisa M.; Itoiz, Maria E.; Aromando, Romina F.; Molinari, Ana J.; Garabalino, Marcela A.; Trivillin, Veronica A.; Schwint, Amanda E.] Natl Atom Energy Commiss CNEA, Dept Radiobiol, Buenos Aires, DF, Argentina.
[Pozzi, Emiliano C. C.] CNEA, Dept Res & Prod Reactors, Ezeiza Atom Ctr, Buenos Aires, DF, Argentina.
[Thorp, Silvia; Miller, Marcelo] CNEA, Instrumentat & Control Dept, Ezeiza Atom Ctr, Buenos Aires, DF, Argentina.
[Itoiz, Maria E.; Aromando, Romina F.] Univ Buenos Aires, Dept Oral Pathol, Fac Dent, RA-1053 Buenos Aires, DF, Argentina.
[Nigg, David W.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Trivillin, Veronica A.; Schwint, Amanda E.] Consejo Nacl Invest Cient & Tecn, Natl Res Council, RA-1033 Buenos Aires, DF, Argentina.
RP Schwint, AE (reprint author), Natl Atom Energy Commiss, Dept Radiobiol, Ave Gen Paz 1499,B1650KNA San Martin, Buenos Aires, DF, Argentina.
EM schwint@cnea.gov.ar
FU Agencia Nacional de Promocion Cientifica y Tecnologica, Argentina
[PICT2006-00700]; Department of Energy through Idaho National Laboratory
(US)
FX Partially funded by Grant of Agencia Nacional de Promocion Cientifica y
Tecnologica, Argentina (Principal Investigator A. E. Schwint,
PICT2006-00700). Partially supported by the Department of Energy through
Idaho National Laboratory (US).
NR 37
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U1 1
U2 8
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1368-8375
J9 ORAL ONCOL
JI Oral Oncol.
PD NOV
PY 2011
VL 47
IS 11
BP 1017
EP 1022
DI 10.1016/j.oraloncology.2011.07.014
PG 6
WC Oncology; Dentistry, Oral Surgery & Medicine
SC Oncology; Dentistry, Oral Surgery & Medicine
GA 842FF
UT WOS:000296577500003
PM 21840244
ER
PT J
AU Vogt, K
Sukhostavets, O
Schultheiss, H
Obry, B
Pirro, P
Serga, AA
Sebastian, T
Gonzalez, J
Guslienko, KY
Hillebrands, B
AF Vogt, K.
Sukhostavets, O.
Schultheiss, H.
Obry, B.
Pirro, P.
Serga, A. A.
Sebastian, T.
Gonzalez, J.
Guslienko, K. Y.
Hillebrands, B.
TI Optical detection of vortex spin-wave eigenmodes in microstructured
ferromagnetic disks
SO PHYSICAL REVIEW B
LA English
DT Article
ID STATE STABILITY; CORE REVERSAL; EXCITATION
AB We examine the excitation of spin-wave eigenmodes in the vortex state of microsized ferromagnetic circular dots made of Permalloy (Ni81Fe19) both theoretically and experimentally using Brillouin light scattering microscopy. We report on the detection of the radial spin-wave eigenmodes of single elements with high mode number (up to n = 13 for the largest disk radius 2.5 mu m). Theoretically we obtain an equation for the eigenfrequencies valid for arbitrary dot aspect ratios (thickness/radius) within the magnetostatic approximation. We demonstrate the influence of the disk radius on the spatial mode profiles, in particular, changes in the pinning of the dynamical magnetization at the edges and in the center of the disks. The measured spin-wave eigenfrequencies are in good agreement with our calculations for the disks with different radii.
C1 [Vogt, K.; Schultheiss, H.; Obry, B.; Pirro, P.; Serga, A. A.; Sebastian, T.; Hillebrands, B.] Tech Univ Kaiserslautern, Fachbereich Phys, D-67663 Kaiserslautern, Germany.
[Vogt, K.; Schultheiss, H.; Obry, B.; Pirro, P.; Serga, A. A.; Sebastian, T.; Hillebrands, B.] Tech Univ Kaiserslautern, Forschungszentrum OPTIMAS, D-67663 Kaiserslautern, Germany.
[Vogt, K.; Sebastian, T.] Grad Sch Mat Sci Mainz, D-55128 Mainz, Germany.
[Sukhostavets, O.; Gonzalez, J.; Guslienko, K. Y.] Univ Basque Country, Dept Fis Mat, E-20018 San Sebastian, Spain.
[Schultheiss, H.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Guslienko, K. Y.] Basque Fdn Sci, IKERBASQUE, E-48011 Bilbao, Spain.
RP Vogt, K (reprint author), Tech Univ Kaiserslautern, Fachbereich Phys, D-67663 Kaiserslautern, Germany.
RI Schultheiss, Helmut/I-2221-2013; Pirro, Philipp/A-3549-2016;
Hillebrands, Burkard/C-6242-2008;
OI Schultheiss, Helmut/0000-0002-6727-5098; Pirro,
Philipp/0000-0002-0163-8634; Hillebrands, Burkard/0000-0001-8910-0355;
Sebastian, Thomas/0000-0002-3384-7393
FU Carl-Zeiss-Stiftung; Graduiertenkolleg [792]; Basque Foundation for
Science; SAIOTEK [S-PC09UN03]; MICINN [PIB2010US-00153,
FIS2010-20979-C02-01]
FX The authors would like to thank A. Beck and the Nano + Bio Center of the
Technische Universitat Kaiserslautern for their assistance in sample
preparation. K.V. gratefully acknowledges financial support by the
Carl-Zeiss-Stiftung. B.O. would like to thank the Graduiertenkolleg 792
for financial support. K.Y.G. acknowledges support by IKERBASQUE (the
Basque Foundation for Science). The Spanish team work was partially
supported by SAIOTEK Grant No. S-PC09UN03 and MICINN Grants No.
PIB2010US-00153 and No. FIS2010-20979-C02-01.
NR 25
TC 16
Z9 17
U1 0
U2 17
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD NOV 1
PY 2011
VL 84
IS 17
AR 174401
DI 10.1103/PhysRevB.84.174401
PG 6
WC Physics, Condensed Matter
SC Physics
GA 845WT
UT WOS:000296858300001
ER
PT J
AU Gray, SB
Classen, AT
Kardol, P
Yermakov, Z
Miller, RM
AF Gray, Sharon B.
Classen, Aimee T.
Kardol, Paul
Yermakov, Zhanna
Miller, R. Michael
TI Multiple Climate Change Factors Interact to Alter Soil Microbial
Community Structure in an Old-Field Ecosystem
SO SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
LA English
DT Article
ID ARBUSCULAR MYCORRHIZAL FUNGI; ATMOSPHERIC CO2 ENRICHMENT; PLANT-SPECIES
RICHNESS; METHYL-ESTER PROFILES; FATTY-ACID PROFILES; ELEVATED CO2;
CARBON-DIOXIDE; WATER AVAILABILITY; GLOBAL CHANGE; TEMPERATURE
AB Climate change has the potential to alter both the composition and function of a soil's microbial community, and interactions among climate change factors may alter soil communities in ways that are not possible to predict from experiments based on a single factor. This study evaluated the direct and interactive effects of three climate change factors-elevated CO2, altered amounts of precipitation, and elevated air temperature-on soil microbial communities from an old-field climate change experiment being conducted at Oak Ridge, TN. Soil microbial community composition and biomass were determined by phospholipid fatty acid (PLFA) and neutral lipid fatty acid composition. We found that the interactive effects of precipitation and temperature treatments, as well as the interactive effects of precipitation and CO2 treatments, had significant impacts on microbial community composition. We found that total soil PLFA concentration, a measure of microbial biomass, was greater in the low-precipitation treatments, especially when low precipitation was combined with ambient CO2 concentrations or ambient temperature. Ordination analysis indicated that temperature was the most significant predictor of shifts in the soil microbial community composition, explaining approximately 12% of the variance in relative abundance of PLFA biomarkers. The elevated-temperature treatment increased the abundance of Firmicutes (low-guanine-cytosine Gram positive) and decreased the abundance of Gram-negative bacteria. Elevated temperature also reduced the abundance of the arbuscular mycorrhizal fungi PLFA biomarker 16:1 omega 5c and saprophytic fungal PLFA biomarker 18: 2 omega 6,9. Overall, our data indicate that the interactions among climate change factors alter the composition of soil microbial communities in old-field ecosystems, suggesting potential for changes in microbial community function under predicted future climate conditions.
C1 [Gray, Sharon B.; Yermakov, Zhanna; Miller, R. Michael] Argonne Natl Lab, Biosci Div E 161, Argonne, IL 60439 USA.
[Gray, Sharon B.] Univ Illinois, Inst Genom Biol, Urbana, IL 61801 USA.
[Classen, Aimee T.] Univ Tennessee, Dep Ecol & Evolutionary Biol, Knoxville, TN 37996 USA.
[Kardol, Paul] Swedish Univ Agr Sci, Dep Forest Ecol & Management, S-90183 Umea, Sweden.
RP Gray, SB (reprint author), Argonne Natl Lab, Biosci Div E 161, Bldg 203,9700 S Cass Ave, Argonne, IL 60439 USA.
EM sbgray@illinois.edu
RI Classen, Aimee/C-4035-2008; Kardol, Paul/A-2600-2010; Gray,
Sharon/C-5774-2012; Kardol, Paul/N-8383-2015
OI Classen, Aimee/0000-0002-6741-3470; Kardol, Paul/0000-0001-7065-3435
FU U.S. Dep. of Energy, Office of Science, Biological and Environmental
Research [DE-AC02-06CH11357, DE-FG02-02ER63366]; U.S. Dep. of Energy
[DE-AC05-00OR22725]
FX We thank S. Wan and P. Allan for field assistance; R.J. Norby and J.A.
Weltzin were integral in establishing the OCCAM experiment. Research was
sponsored by the U.S. Dep. of Energy, Office of Science, Biological and
Environmental Research Program under Contract no. DE-AC02-06CH11357 to
Argonne National Laboratory and Grant no. DE-FG02-02ER63366 to the
University of Tennessee; S. B. Gray was supported by the U.S. Dep. of
Energy's Global Change Education Program. Work was conducted in
collaboration with Oak Ridge National Laboratory, which is managed by UT
Battelle, LLC, for the U.S. Dep. of Energy under Contract
DE-AC05-00OR22725.
NR 68
TC 28
Z9 30
U1 5
U2 79
PU SOIL SCI SOC AMER
PI MADISON
PA 677 SOUTH SEGOE ROAD, MADISON, WI 53711 USA
SN 0361-5995
J9 SOIL SCI SOC AM J
JI Soil Sci. Soc. Am. J.
PD NOV
PY 2011
VL 75
IS 6
BP 2217
EP 2226
DI 10.2136/sssaj2011.0135
PG 10
WC Soil Science
SC Agriculture
GA 841ZK
UT WOS:000296553600020
ER
PT J
AU Figueiredo, E
Park, G
Farrar, CR
Worden, K
Figueiras, J
AF Figueiredo, Eloi
Park, Gyuhae
Farrar, Charles R.
Worden, Keith
Figueiras, Joaquim
TI Machine learning algorithms for damage detection under operational and
environmental variability
SO STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
LA English
DT Article
DE SHM; damage detection; operational and environmental variations; ROC
curves
ID PRINCIPAL COMPONENT ANALYSIS; IDENTIFICATION; DIAGNOSIS
AB The goal of this article is to detect structural damage in the presence of operational and environmental variations using vibration-based damage identification procedures. For this purpose, four machine learning algorithms are applied based on the auto-associative neural network, factor analysis, Mahalanobis distance, and singular value decomposition. A base-excited three-story frame structure was tested in laboratory environment to obtain time-series data from an array of accelerometers under several structural state conditions. Tests were performed with varying stiffness and mass conditions with the assumption that these sources of variability are representative of changing operational and environmental conditions. Damage is simulated through nonlinear effects introduced by a bumper mechanism that induces a repetitive, impact-type nonlinearity. This mechanism intends to simulate the cracks that open and close under dynamic loads or loose connections that rattle. The unique contribution of this study is a direct comparison of the four proposed machine learning algorithms that have been reported as reliable approaches to separate structural conditions with changes resulting from damage from changes caused by operational and environmental variations.
C1 [Park, Gyuhae; Farrar, Charles R.] Los Alamos Natl Lab, Engn Inst, Los Alamos, NM 87545 USA.
[Figueiredo, Eloi; Figueiras, Joaquim] Univ Porto, Dept Civil Engn, P-4200465 Oporto, Portugal.
[Worden, Keith] Univ Sheffield, Dept Mech Engn, Sheffield S1 3JD, S Yorkshire, England.
RP Park, G (reprint author), Los Alamos Natl Lab, Engn Inst, POB 1663, Los Alamos, NM 87545 USA.
EM gpark@lanl.gov
OI Figueiras, Joaquim/0000-0002-3009-6803; Figueiredo,
Eloi/0000-0002-9168-6903; Farrar, Charles/0000-0001-6533-6996
NR 31
TC 41
Z9 42
U1 2
U2 21
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1475-9217
J9 STRUCT HEALTH MONIT
JI Struct. Health Monit.
PD NOV
PY 2011
VL 10
IS 6
BP 559
EP 572
DI 10.1177/1475921710388971
PG 14
WC Engineering, Multidisciplinary; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA 843JI
UT WOS:000296667700001
ER
PT J
AU Chen, CL
Dong, CL
Asokan, K
Chen, JL
Liu, YS
Guo, JH
Yang, WL
Chen, YY
Hsu, FC
Chang, CL
Wu, MK
AF Chen, C. L.
Dong, C. L.
Asokan, K.
Chen, J. L.
Liu, Y. S.
Guo, J-H
Yang, W. L.
Chen, Y. Y.
Hsu, F. C.
Chang, C. L.
Wu, M. K.
TI Role of 3d electrons in the rapid suppression of superconductivity in
the dilute V doped spinel superconductor LiTi2O4
SO SUPERCONDUCTOR SCIENCE & TECHNOLOGY
LA English
DT Article
ID X-RAY-ABSORPTION; TRANSITION-METAL COMPOUNDS; POLARIZATION DEPENDENCE;
TITANIUM-OXIDES; K-EDGE; SPECTRA; TIO2; SPECTROSCOPY; ANATASE;
SCATTERING
AB The microscopic effects of V doping in LiTi2O4 have been poorly understood. The present study employs x-ray absorption near-edge structure (XANES) and resonant inelastic soft-x-ray scattering (RIXS) spectroscopy to understand the change in the electronic structure due to dilute V doping in spinel LiTi2O4 and the possible origin for the rapid suppression of superconductivity in these compounds. Results from the XANES spectra at Ti L and K edges and Ti L-RIXS show that Ti exists in a mixed-valence state and, with V doping, the unoccupied states of Ti in the t(2g) band increase. The rapid suppression of superconductivity is associated with the change in Ti 3d electrons and Ti-O hybridization.
C1 [Chen, C. L.; Chen, Y. Y.; Hsu, F. C.; Wu, M. K.] Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
[Dong, C. L.] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan.
[Asokan, K.] Interuniv Accelerator Ctr, New Delhi 110067, India.
[Chen, J. L.; Liu, Y. S.; Chang, C. L.] Tamkang Univ, Dept Phys, Tamsui, Taipei County, Taiwan.
[Guo, J-H; Yang, W. L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Chen, CL (reprint author), Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
EM clchen@phys.sinica.edu.tw; dong.cl@nsrrc.org.tw
RI Chen, Chi Liang/F-4649-2012; Yang, Wanli/D-7183-2011; Kandasami,
Asokan/A-6035-2009;
OI Kandasami, Asokan/0000-0002-1602-765X; Yang, Wanli/0000-0003-0666-8063;
Kandasami, Asokan/0000-0002-0613-219X; Chang,
Ching-Lin/0000-0001-8547-371X
FU National Science Council of Taiwan [C-98-2112-M-213-006-MY3,
NSC-099-2112-M-001-036-MY3]
FX The National Science Council of Taiwan (contracts
NSC-98-2112-M-213-006-MY3 and NSC-099-2112-M-001-036-MY3) supported this
work. We thank Dr J M Chen for beamline support and Dr J F Lee for
useful discussions.
NR 40
TC 3
Z9 3
U1 1
U2 59
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-2048
J9 SUPERCOND SCI TECH
JI Supercond. Sci. Technol.
PD NOV
PY 2011
VL 24
IS 11
AR 115007
DI 10.1088/0953-2048/24/11/115007
PG 7
WC Physics, Applied; Physics, Condensed Matter
SC Physics
GA 844TD
UT WOS:000296769300007
ER
PT J
AU Krishnan, M
Valderrama, E
Bures, B
Wilson-Elliott, K
Zhao, X
Phillips, L
Valente-Feliciano, AM
Spradlin, J
Reece, C
Seo, K
AF Krishnan, M.
Valderrama, E.
Bures, B.
Wilson-Elliott, K.
Zhao, X.
Phillips, L.
Valente-Feliciano, A-M
Spradlin, J.
Reece, C.
Seo, K.
TI Very high residual resistivity ratios of heteroepitaxial superconducting
niobium films on MgO substrates
SO SUPERCONDUCTOR SCIENCE & TECHNOLOGY
LA English
DT Article
ID VACUUM CATHODIC ARC; EPITAXIAL-GROWTH; THIN-FILMS; NB; EVAPORATION
AB We report residual resistivity ratio (RRR) values (up to RRR-541) measured in thin film Nb grown on MgO crystal substrates, using a vacuum arc discharge, whose 60-160 eV Nb ions drive heteroepitaxial crystal growth. The RRR depends strongly upon substrate annealing and deposition temperatures. X-ray diffraction spectra and pole figures reveal that, as the crystal structure of the Nb film becomes more ordered, RRR increases, consistent with fewer defects or impurities in the lattice and hence longer electron mean free path. A transition from Nb(110) to purely Nb(100) crystal orientation on the MgO(100) lattice occurs at higher temperature.
C1 [Krishnan, M.; Valderrama, E.; Bures, B.; Wilson-Elliott, K.] Alameda Appl Sci Corp, San Leandro, CA 94577 USA.
[Zhao, X.; Phillips, L.; Valente-Feliciano, A-M; Spradlin, J.; Reece, C.] Thomas Jefferson Natl Accelerator Facil, Jefferson Lab, Newport News, VA 23606 USA.
[Seo, K.] Norfolk State Univ, Norfolk, VA 23504 USA.
RP Krishnan, M (reprint author), Alameda Appl Sci Corp, San Leandro, CA 94577 USA.
EM krishnan@aasc.net
FU US DOE via SBIR; US DOE [DE-AC05-06OR23177]; American Recovery and
Reinvestment Act
FX This research was supported by the US DOE via SBIR grants to AASC. The
JLab effort was provided by Jefferson Science Associates, LLC under US
DOE contract no. DE-AC05-06OR23177, including supplemental funding
provided by the American Recovery and Reinvestment Act.
NR 26
TC 12
Z9 12
U1 1
U2 9
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-2048
J9 SUPERCOND SCI TECH
JI Supercond. Sci. Technol.
PD NOV
PY 2011
VL 24
IS 11
AR 115002
DI 10.1088/0953-2048/24/11/115002
PG 6
WC Physics, Applied; Physics, Condensed Matter
SC Physics
GA 844TD
UT WOS:000296769300002
ER
PT J
AU Shen, TM
Jiang, JY
Kametani, F
Trociewitz, UP
Larbalestier, DC
Hellstrom, EE
AF Shen, Tengming
Jiang, Jianyi
Kametani, Fumitake
Trociewitz, Ulf P.
Larbalestier, David C.
Hellstrom, Eric E.
TI Heat treatment control of Ag-Bi2Sr2CaCu2Ox multifilamentary round wire:
investigation of time in the melt
SO SUPERCONDUCTOR SCIENCE & TECHNOLOGY
LA English
DT Article
ID CRITICAL-CURRENT DENSITIES; BI-2212/AG WIRES; CONDUCTORS; TAPES;
IMPROVEMENT; AG; MICROSTRUCTURE; TEMPERATURE; DIFFUSION; BEHAVIOR
AB It is well known that the critical current density J(c) of Ag-sheathed Bi2Sr2CaCu2Ox (2212) varies strongly with heat treatment details, particularly the maximum processing temperature T-max, but the mechanism for such J(c) variations and how the processing window can be widened remain unknown. We systematically measured the J(c) and electromagnetic properties of a powder-in-tube Ag-sheathed multifilamentary Bi2Sr2CaCu2Ox (2212) round wire processed with the maximum processing temperature T-max ranging from 887 to 900 degrees C and the time at the maximum temperature t(max) from 0 to 3 h using three representative heat treatment schedules. We found that J(c) correlates weakly to T-max, but it correlates strongly to the time in the melt t(melt), a processing parameter that has not been explicitly considered before. J(c) is rather insensitive to T-max in the temperature range 887-900 degrees C and the true cause of J(c) declining with high T-max appears to be the long t(melt) that leads to collapse of filament structure. By tuning t(melt) we were able to widen the T-max window to 10 degrees C. The J(c)-t(melt) correlation, as well as quench studies, indicate that J(c) is controlled by complex diffusion processes occurring in the melt (filament bonding, bubble agglomeration, and perhaps Cu loss). Our findings highlight t(melt) as an important processing parameter for optimizing J(c) and may serve as a general guide for heat treating 2212 coils.
C1 [Shen, Tengming; Jiang, Jianyi; Kametani, Fumitake; Trociewitz, Ulf P.; Larbalestier, David C.; Hellstrom, Eric E.] Florida State Univ, Ctr Appl Superconduct, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
[Shen, Tengming] Florida State Univ, Dept Elect & Comp Engn, FAMU FSU Coll Engn, Tallahassee, FL 32310 USA.
[Larbalestier, David C.; Hellstrom, Eric E.] Florida State Univ, Dept Mech Engn, FAMU FSU Coll Engn, Tallahassee, FL 32310 USA.
RP Shen, TM (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
RI Shen, Tengming/G-7320-2012; Larbalestier, David/B-2277-2008; Jiang,
Jianyi/F-2549-2017
OI Larbalestier, David/0000-0001-7098-7208; Jiang,
Jianyi/0000-0002-1094-2013
FU NSF [DMR-0084173]; State of Florida; ARRA through the US Department of
Energy
FX Work at the NHMFL is supported by the NSF Cooperative Agreement
DMR-0084173, by the State of Florida, and by an ARRA grant through the
US Department of Energy. We would like to thank David Myers, Bill
Starch, Van Griffin, and Natanette Craig for technical assistance with
electromagnetic properties measurements and metallographic polishing and
imaging. We thank the members of the Very High Field Superconducting
Magnet Collaboration for helpful discussions.
NR 35
TC 11
Z9 11
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-2048
J9 SUPERCOND SCI TECH
JI Supercond. Sci. Technol.
PD NOV
PY 2011
VL 24
IS 11
AR 115009
DI 10.1088/0953-2048/24/11/115009
PG 8
WC Physics, Applied; Physics, Condensed Matter
SC Physics
GA 844TD
UT WOS:000296769300009
ER
PT J
AU Dugger, MT
AF Dugger, Michael T.
TI Bringing professionals together
SO TRIBOLOGY & LUBRICATION TECHNOLOGY
LA English
DT Editorial Material
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Dugger, MT (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM mtdugge@sandia.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC TRIBOLOGISTS & LUBRICATION ENGINEERS
PI PARK RIDGE
PA 840 BUSSE HIGHWAY, PARK RIDGE, IL 60068 USA
SN 1545-858X
J9 TRIBOL LUBR TECHNOL
JI Tribol. Lubr. Technol.
PD NOV
PY 2011
VL 67
IS 11
BP 29
EP 29
PG 1
WC Engineering, Mechanical
SC Engineering
GA 843KT
UT WOS:000296671400009
ER
PT J
AU Goel, A
Rajagopal, RR
Ferreira, JMF
AF Goel, Ashutosh
Rajagopal, Raghu Raman
Ferreira, Jose M. F.
TI Influence of strontium on structure, sintering and biodegradation
behaviour of CaO-MgO-SrO-SiO2-P2O5-CaF2 glasses
SO ACTA BIOMATERIALIA
LA English
DT Article
DE Strontium; Bioactive glass; Surface reactivity; Structure; XRD
ID MOLECULAR-DYNAMICS SIMULATIONS; BIOACTIVE GLASSES; CHEMICAL DURABILITY;
GENE-EXPRESSION; DIOPSIDE; SPECTRA; CALCIUM; CELLS; BONE;
DIFFERENTIATION
AB The present study investigates the influence of SrO on structure, apatite-forming ability, physico-chemical degradation and sintering behaviour of melt-quenched bioactive glasses with the composition (mol.%): (36.07-x) CaO-xSrO-19.24MgO-5.61P(2)O(5)-38.49SiO(2)-0.59CaF(2), where x varies between 0 and 10. The detailed structural analysis of the glasses is made by infrared spectroscopy and magic angle spinning-nuclear magnetic resonance spectroscopy. Silicon is predominantly present as Q(2) (Si) species, while phosphorus is found as orthophosphate in all the investigated glasses. The apatite-forming ability of glasses is investigated by immersion of glass powders in simulated body fluid for time durations varying between 1 h and 7 days. While increasing the Sr2+/Ca2+ ratio in the glasses does not affect their structure significantly, their apatite-forming ability is decreased considerably. Further, physico-chemical degradation of glasses is studied in accordance with ISO 10993-14 "Biological evaluation of medical devices - Part 14: Identification and quantification of degradation products from ceramics" in Tris-HCl and citric acid buffer, and the possible implications of the ion release profiles from the glasses in different solutions are discussed. The addition of strontium to the glasses leads to a sevenfold decrease in chemical degradation of glasses in Tris-HCl. The sintering of glass powders renders glass ceramics (GCs) with varying degrees of crystallinity and good flexural strength (98-131 MPa), where the mechanical properties depend on the nature and amount of crystalline phases present in the GCs. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
C1 [Goel, Ashutosh] Pacific NW Natl Lab, Richland, WA 99354 USA.
[Rajagopal, Raghu Raman; Ferreira, Jose M. F.] Univ Aveiro, Dept Ceram & Glass Engn, CICECO, P-3810193 Aveiro, Portugal.
RP Goel, A (reprint author), Pacific NW Natl Lab, Richland, WA 99354 USA.
EM ashutosh.goel@pnnl.gov
RI Goel, Ashutosh/J-9972-2012
FU FCT-Portugal; CICECO
FX The support of FCT-Portugal and CICECO is greatly acknowledged.
NR 50
TC 37
Z9 37
U1 3
U2 28
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1742-7061
J9 ACTA BIOMATER
JI Acta Biomater.
PD NOV
PY 2011
VL 7
IS 11
BP 4071
EP 4080
DI 10.1016/Lactbio.2011.06.047
PG 10
WC Engineering, Biomedical; Materials Science, Biomaterials
SC Engineering; Materials Science
GA 837NK
UT WOS:000296210300028
PM 21763793
ER
PT J
AU Norris, AL
Serpersu, EH
AF Norris, Adrianne L.
Serpersu, Engin H.
TI Antibiotic Selection by the Promiscuous Aminoglycoside
Acetyltransferase-(3)-IIIb Is Thermodynamically Achieved through the
Control of Solvent Rearrangement
SO BIOCHEMISTRY
LA English
DT Article
ID HEAT-CAPACITY CHANGES; PROTEIN-FOLDING THERMODYNAMICS;
AMINO-ACID-RESIDUES; LIGAND-BINDING; WATER; HYDRATION; ENTHALPY;
SOLVATION; MODEL; NMR
AB The results presented here show the first known observation of opposite signs of change in heat capacity (Delta C(p)) of two structurally similar ligands binding to the same protein site. Neomycin and paromomycin are aminoglycoside antibiotics that are substrates for the resistance-conferring enzyme, the aminoglycoside acetyltransferase-(3)-IIIb (AAC). These antibiotics are identical to one another except at the 6' position where neomycin has an amine and paromomycin has a hydroxyl. The opposite trends in Delta C(p) of binding of these two drugs to AAC suggest a differential exposure of nonpolar amino acid side chains. Nuclear magnetic resonance experiments further demonstrate significantly different changes in AAC upon interaction with neomycin and paromomycin. Experiments in H(2)O and D(2)O reveal the first observed temperature dependence of solvent and vibrational contributions to Delta C(p). Coenzyme A significantly influences these effects. Together, the data suggest that AAC exploits solvent properties to facilitate favorable thermodynamic selection of antibiotics.
C1 [Norris, Adrianne L.; Serpersu, Engin H.] Univ Tennessee, Dept Biochem & Cellular & Mol Biol, Knoxville, TN 37996 USA.
[Serpersu, Engin H.] Univ Tennessee, Grad Sch Genome Sci & Technol, Knoxville, TN 37996 USA.
[Serpersu, Engin H.] Oak Ridge Natl Lab, Knoxville, TN 37996 USA.
[Serpersu, Engin H.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
RP Serpersu, EH (reprint author), Univ Tennessee, Dept Biochem & Cellular & Mol Biol, Walters Life Sci Bldg M407, Knoxville, TN 37996 USA.
EM serpersu@utk.edu
FU National Science Foundation [MCB-0842743]
FX This work is supported by a grant from the National Science Foundation
(MCB-0842743 to E.H.S.).
NR 38
TC 5
Z9 6
U1 3
U2 9
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0006-2960
J9 BIOCHEMISTRY-US
JI Biochemistry
PD NOV 1
PY 2011
VL 50
IS 43
BP 9309
EP 9317
DI 10.1021/bi2011916
PG 9
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 837PZ
UT WOS:000296217000014
PM 21958034
ER
PT J
AU Allix, M
Chambrier, MH
Veron, E
Porcher, F
Suchomel, M
Goutenoire, F
AF Allix, Mathieu
Chambrier, Marie-Helene
Veron, Emmanuel
Porcher, Florence
Suchomel, Matthew
Goutenoire, Francois
TI Synthesis and Structure Determination of the High Temperature Form of
La2WO6
SO CRYSTAL GROWTH & DESIGN
LA English
DT Article
ID POWDER DIFFRACTION PATTERNS; CRYSTAL-STRUCTURE; PHASE-EQUILIBRIA;
POLYMORPHISM; PARAMETERS; LA2O3-WO3; LA; DY
AB This article presents the synthesis, structure determination, and structure analysis of alpha-La2WO6. This high temperature polyrnorph Was directly observed using laboratory in situ high-temperature X-ray powder. diffraction and isolated at room temperature by rapid quenching from 1600 degrees C. Ab initio structure determination has been performed at room temperature by combining electron diffraction results with an analysis of synchrotron and neutron powder diffraction data by charge-flipping algorithm methods. The alpha-La2WO6 phase is found to crystallize in the Pm2(1)n(No. 31) orthorhombic space group (Z = 6) with cell parameters: a = 16.5513(1) angstrom, b = 5.52003(3) A, c = 8.88326(3) angstrom and a measured density of 6.82(1) g.cm(-3) at room temperature. This previously uncharacterized high temperature alpha-La2WO6 form (>1450 degrees C) may be described as a regular paving between six [WO6] octahedra alternating with 12 isolated lanthanum atoms. The conductivity properties have been measured and compared to the low temperature (beta) polymorph.
C1 [Allix, Mathieu; Veron, Emmanuel] CNRS, CEMHTI, UPR3079, F-45071 Orleans 2, France.
[Allix, Mathieu; Veron, Emmanuel] Univ Orleans, F-45067 Orleans 2, France.
[Chambrier, Marie-Helene; Goutenoire, Francois] Univ Maine, CNRS, Lab Oxydes & Fluorures, UMR 6010, F-72085 Le Mans 9, France.
[Porcher, Florence] CEA Saclay, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France.
[Suchomel, Matthew] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Allix, M (reprint author), CNRS, CEMHTI, UPR3079, 1D Ave Rech Sci, F-45071 Orleans 2, France.
EM mathieu.allix@cnrs.orleans.fr
RI VERON, Emmanuel/C-1825-2008; Suchomel, Matthew/C-5491-2015; Allix,
Mathieu/C-1679-2008;
OI Allix, Mathieu/0000-0001-9317-1316; SUCHOMEL,
Matthew/0000-0002-9500-5079
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]; [9719]
FX The use of the Advanced Photon Source at Argonne National Laboratory was
supported by the U.S. Department of Energy, Office of Science, Office of
Basic Energy Sciences, under Contract DE-AC02-06CH11357.; The neutron
experiments realized at the Laboratoire Leon Brillouin in Saclay have
been supported by Project No. 9719.
NR 32
TC 7
Z9 7
U1 5
U2 36
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1528-7483
EI 1528-7505
J9 CRYST GROWTH DES
JI Cryst. Growth Des.
PD NOV
PY 2011
VL 11
IS 11
BP 5105
EP 5112
DI 10.1021/cg201010y
PG 8
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA 838TE
UT WOS:000296314300050
ER
PT J
AU Wang, SA
Diwu, J
Simonetti, A
Booth, CH
Albrecht-Schmitt, TE
AF Wang, Shuao
Diwu, Juan
Simonetti, Antonio
Booth, Corwin H.
Albrecht-Schmitt, Thomas E.
TI Interstitial Incorporation of Plutonium into a Low-Dimensional Potassium
Borate
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID ABSORPTION FINE-STRUCTURE; SPENT NUCLEAR-FUEL; CRYSTAL-STRUCTURE;
CATIONIC FRAMEWORK; RADIATION-DAMAGE; WASTE FORMS; CALCITE; URANIUM;
SITE; NEPTUNIUM
AB The molten boric acid flux reaction of PuBr3 with KBO2 at 200 degrees C results in the formation of large light-yellow crystals of K[B5O7(OH)(2)]center dot H2O:Pu4+. Single-crystal X-ray diffraction experiments on the Pu-doped K[B5O7(OH)(2)]center dot H2O demonstrate two features: (1) K[B5O7(OH)(2)]center dot H2O:Pu4+ adopts a one-dimensional borate chain structure with void spaces between the chains. (2) The doping plutonium atoms do not reside on the potassium sites. The latter are not fully occupied. Both laser-ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and energy-dispersive spectrometry analyses indicate that plutonium atoms are uniformly distributed in crystals of K[B5O7(OH)(2)]center dot H2O with an atomic K:Pu ratio of approximately 65:1 measured by LA-ICP-MS. UV-vis-NIR spectra taken from both freshly made and one day old crystals show that the plutonium present within the crystals is predominantly characterized by Pu(IV). A small amount of Pu(III) is also present initially, but slowly oxidized to Pu(IV) via interaction with oxygen in the air. X-ray absorption near-edge structure and extended X-ray absorption fine structure spectroscopic measurements confirm that plutonium is mainly present as a form similar to that of a PuO2 cluster. The combined results suggest that the clusters containing Pu(IV) ions are uniformly distributed in the void spaces between the borate chains.
C1 [Wang, Shuao; Diwu, Juan; Simonetti, Antonio; Albrecht-Schmitt, Thomas E.] Univ Notre Dame, Dept Civil Engn & Geol Sci, Notre Dame, IN 46556 USA.
[Wang, Shuao; Diwu, Juan; Simonetti, Antonio; Albrecht-Schmitt, Thomas E.] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA.
[Booth, Corwin H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Albrecht-Schmitt, TE (reprint author), Univ Notre Dame, Dept Civil Engn & Geol Sci, Notre Dame, IN 46556 USA.
EM talbrec1@nd.edu
RI Wang, Shuao/H-7373-2012; Booth, Corwin/A-7877-2008; Simonetti,
Antonio/E-4187-2016
OI Simonetti, Antonio/0000-0002-4025-2283
FU U.S. Department of Energy (DOE) [ER64804]; Office of Science, Office of
Basic Energy Sciences, of the U.S. DOE [DE-AC02-05CH11231]
FX We are grateful for support provided by the U.S. Department of Energy
(DOE), Subsurface Biogeochemical Research Program, under Grant ER64804.
Work at Lawrence Berkeley National Laboratory was supported by the
Director, Office of Science, Office of Basic Energy Sciences, of the
U.S. DOE under Contract DE-AC02-05CH11231.
NR 71
TC 5
Z9 5
U1 1
U2 22
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 NOV 1
PY 2011
VL 45
IS 21
BP 9457
EP 9463
DI 10.1021/es2028247
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 837OI
UT WOS:000296212700048
PM 21932804
ER
PT J
AU Phillips, CL
Gregg, JW
Wilson, JK
AF Phillips, Claire L.
Gregg, Jillian W.
Wilson, John K.
TI Reduced diurnal temperature range does not change warming impacts on
ecosystem carbon balance of Mediterranean grassland mesocosms
SO GLOBAL CHANGE BIOLOGY
LA English
DT Article
DE asymmetric warming; carbon; diurnal temperature range; grassland;
respiration
ID CLIMATE-CHANGE; TERRESTRIAL ECOSYSTEMS; NIGHT TEMPERATURE; CO2 FLUXES;
RESPIRATION; GROWTH; RESPONSES; PHOTOSYNTHESIS; PRACTICALITY;
VARIABILITY
AB Daily minimum temperature (T-min) has increased faster than daily maximum temperature (T-max) in many parts of the world, leading to decreases in diurnal temperature range (DTR). Projections suggest that these trends are likely to continue in many regions, particularly in northern latitudes and in arid regions. Despite wide speculation that asymmetric warming has different impacts on plant and ecosystem production than equal-night-and-day warming, there has been little direct comparison of these scenarios. Reduced DTR has also been widely misinterpreted as a result of night-only warming, when in fact T-min occurs near dawn, indicating higher morning as well as night temperatures. We report on the first experiment to examine ecosystem-scale impacts of faster increases in T-min than in T-max, using precise temperature controls to create realistic diurnal temperature profiles with gradual day-night temperature transitions and elevated early morning as well as night temperatures. Studying a constructed grassland ecosystem containing species native to Oregon, USA, we found that the ecosystem lost more carbon at elevated than ambient temperatures, but remained unaffected by the 3 degrees C difference in DTR between symmetric warming (constantly ambient + 3.5 degrees C) and asymmetric warming (dawn T-min = ambient + 5 degrees C, afternoon T-max = ambient + 2 degrees C). Reducing DTR had no apparent effect on photosynthesis, probably because temperatures were most different in the morning and late afternoon when light was low. Respiration was also similar in both warming treatments, because respiration temperature sensitivity was not sufficient to respond to the limited temperature differences between asymmetric and symmetric warming. We concluded that changes in daily mean temperatures, rather than changes in T-min/T-max, were sufficient for predicting ecosystem carbon fluxes in this reconstructed Mediterranean grassland system.
C1 [Phillips, Claire L.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94551 USA.
[Phillips, Claire L.; Gregg, Jillian W.; Wilson, John K.] Terr Ecosyst Res Associates, Corvallis, OR 97333 USA.
RP Phillips, CL (reprint author), Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, POB 808,L-397, Livermore, CA 94551 USA.
EM claire.phillips@llnl.gov
FU US Department of Energy [DE-FG02-05ER64048]; US Department of Energy,
Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
FX Funding was provided to Terrestrial Ecosystem Research Associates (TERA)
by the US Department of Energy under contract DE-FG02-05ER64048.
Assistance was provided by several TERA employees including Jared Hall,
Daniel Theophanes, Thomas Hendrickson, Luke Pangle, Daniel Bailey, and
Casey Ward and by Bill Rugh of US EPA. A portion of this manuscript was
prepared under the auspices of the US Department of Energy by Lawrence
Livermore National Laboratory under contract DE-AC52-07NA27344.
NR 48
TC 8
Z9 8
U1 3
U2 39
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1354-1013
EI 1365-2486
J9 GLOBAL CHANGE BIOL
JI Glob. Change Biol.
PD NOV
PY 2011
VL 17
IS 11
BP 3263
EP 3273
DI 10.1111/j.1365-2486.2011.02483.x
PG 11
WC Biodiversity Conservation; Ecology; Environmental Sciences
SC Biodiversity & Conservation; Environmental Sciences & Ecology
GA 836UA
UT WOS:000296137000001
ER
PT J
AU Gillespie, JJ
Wattam, AR
Cammer, SA
Gabbard, JL
Shukla, MP
Dalay, O
Driscoll, T
Hix, D
Mane, SP
Mao, CH
Nordberg, EK
Scott, M
Schulman, JR
Snyder, EE
Sullivan, DE
Wang, CX
Warren, A
Williams, KP
Xue, T
Yoo, HS
Zhang, CD
Zhang, Y
Will, R
Kenyon, RW
Sobral, BW
AF Gillespie, Joseph J.
Wattam, Alice R.
Cammer, Stephen A.
Gabbard, Joseph L.
Shukla, Maulik P.
Dalay, Oral
Driscoll, Timothy
Hix, Deborah
Mane, Shrinivasrao P.
Mao, Chunhong
Nordberg, Eric K.
Scott, Mark
Schulman, Julie R.
Snyder, Eric E.
Sullivan, Daniel E.
Wang, Chunxia
Warren, Andrew
Williams, Kelly P.
Xue, Tian
Yoo, Hyun Seung
Zhang, Chengdong
Zhang, Yan
Will, Rebecca
Kenyon, Ronald W.
Sobral, Bruno W.
TI PATRIC: the Comprehensive Bacterial Bioinformatics Resource with a Focus
on Human Pathogenic Species
SO INFECTION AND IMMUNITY
LA English
DT Review
ID IV SECRETION SYSTEM; MULTIPLE SEQUENCE ALIGNMENT; BRUCELLA-ABORTUS;
ERYTHRITOL CATABOLISM; INTRACELLULAR LIFE; HIGH-THROUGHPUT; DATABASE;
GENOME; GENES; INTEGRATION
AB Funded by the National Institute of Allergy and Infectious Diseases, the Pathosystems Resource Integration Center (PATRIC) is a genomics-centric relational database and bioinformatics resource designed to assist scientists in infectious-disease research. Specifically, PATRIC provides scientists with (i) a comprehensive bacterial genomics database, (ii) a plethora of associated data relevant to genomic analysis, and (iii) an extensive suite of computational tools and platforms for bioinformatics analysis. While the primary aim of PATRIC is to advance the knowledge underlying the biology of human pathogens, all publicly available genome-scale data for bacteria are compiled and continually updated, thereby enabling comparative analyses to reveal the basis for differences between infectious free-living and commensal species. Herein we summarize the major features available at PATRIC, dividing the resources into two major categories: (i) organisms, genomes, and comparative genomics and (ii) recurrent integration of community-derived associated data. Additionally, we present two experimental designs typical of bacterial genomics research and report on the execution of both projects using only PATRIC data and tools. These applications encompass a broad range of the data and analysis tools available, illustrating practical uses of PATRIC for the biologist. Finally, a summary of PATRIC's outreach activities, collaborative endeavors, and future research directions is provided.
C1 [Sobral, Bruno W.] Virginia Tech, Cyberinfrastruct Div, Virginia Bioinformat Inst, Blacksburg, VA 24061 USA.
[Gillespie, Joseph J.] Univ Maryland, Dept Microbiol & Immunol, Baltimore, MD 21201 USA.
[Nordberg, Eric K.] HHS NIH NCI SRA Int Inc, Rockville, MD 20852 USA.
[Wang, Chunxia] Novozymes Biol Inc, Salem, VA 24153 USA.
[Williams, Kelly P.] Sandia Natl Labs, Livermore, CA 94551 USA.
RP Sobral, BW (reprint author), Virginia Tech, Cyberinfrastruct Div, Virginia Bioinformat Inst, Washington St,MC 0477, Blacksburg, VA 24061 USA.
EM sobral@vbi.vt.edu
OI Driscoll, Timothy/0000-0002-5119-0372; Gillespie,
Joseph/0000-0002-5447-7264
FU National Institute of Allergy and Infectious Diseases, National
Institutes of Health, Department of Health and Human Services
[HHSN272200900040C]
FX This project has been funded in whole or in part with federal funds from
the National Institute of Allergy and Infectious Diseases, National
Institutes of Health, Department of Health and Human Services, under
contract no. HHSN272200900040C awarded to B. W. S. The content is solely
the responsibility of the authors and does not necessarily represent the
official views of the NIAID or the National Institutes of Health.
NR 57
TC 127
Z9 127
U1 2
U2 32
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0019-9567
J9 INFECT IMMUN
JI Infect. Immun.
PD NOV
PY 2011
VL 79
IS 11
BP 4286
EP 4298
DI 10.1128/IAI.00207-11
PG 13
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 839GB
UT WOS:000296352400001
PM 21896772
ER
PT J
AU Ravindran, PP
Heroux, A
Ye, JD
AF Ravindran, Priyadarshini P.
Heroux, Annie
Ye, Jing-Dong
TI Improvement of the crystallizability and expression of an RNA
crystallization chaperone
SO JOURNAL OF BIOCHEMISTRY
LA English
DT Article
DE chaperone assisted RNA crystallography; Fab; protein engineering; shake
flask expression; surface entropy reduction
ID RATIONAL PROTEIN CRYSTALLIZATION; X-RAY STRUCTURES; CRYSTAL-STRUCTURE;
ANGSTROM RESOLUTION; ESCHERICHIA-COLI; SYNTHETIC ANTIBODIES; CATALYTIC
DOMAIN; SECRETION SYSTEM; STRUCTURAL BASIS; RIBOZYME DOMAIN
AB Crystallizing RNA has been an imperative and challenging task in the world of RNA research. Assistive methods such as chaperone-assisted RNA crystallography (CARC), employing monoclonal antibody fragments (Fabs) as crystallization chaperones have enabled us to obtain RNA crystal structures by forming crystal contacts and providing initial phasing information. Despite the early successes, the crystallization of large RNA-Fab complex remains a challenge in practice. The possible reason for this difficulty is that the Fab scaffold has not been optimized for crystallization in complex with RNA. Here, we have used the surface entropy reduction (SER) technique for the optimization of delta C209 P4-P6/Fab2 model system. Protruding lysine and glutamate residues were mutated to a set of alanines or serines to construct Fab2SMA or Fab2SMS. Expression with the shake flask approach was optimized to allow large scale production for crystallization. Crystal screening shows that significantly higher crystal-forming ratio was observed for the mutant complexes. As the chosen SER residues are far away from the CDR regions of the Fab, the same set of mutations can now be directly applied to other Fabs binding to a variety of ribozymes and riboswitches to improve the crystallizability of Fab-RNA complex.
C1 [Ravindran, Priyadarshini P.; Ye, Jing-Dong] Univ Cent Florida, Dept Chem, Orlando, FL 32816 USA.
[Heroux, Annie] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
RP Ye, JD (reprint author), Univ Cent Florida, Dept Chem, 4000 Cent Florida Blvd, Orlando, FL 32816 USA.
EM yejingdong@gmail.com
FU University of Central Florida
FX The University of Central Florida (to J.D.Y.).
NR 44
TC 7
Z9 7
U1 0
U2 6
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0021-924X
J9 J BIOCHEM
JI J. Biochem.
PD NOV
PY 2011
VL 150
IS 5
BP 535
EP 543
DI 10.1093/jb/mvr093
PG 9
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 838MN
UT WOS:000296296500008
PM 21785128
ER
PT J
AU Chen, LZ
Pan, X
Xiong, FB
Li, L
Li, N
Li, ZM
Wang, G
Wu, YF
AF Chen, Lizhu
Pan, Xue
Xiong, Fengbo
Li, Lin
Li, Na
Li, Zhiming
Wang, Gang
Wu, Yuanfang
TI Statistical and dynamical fluctuations in the ratios of higher
net-proton cumulants in relativistic heavy-ion collisions
SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
LA English
DT Article
ID MULTIPARTICLE PRODUCTION; HIGH-ENERGY; FREEZE-OUT; RANGE
AB With the help of transport and statistical models, we find that the ratios of higher net-proton cumulants measured at RHIC are dominated by Poisson-like statistical fluctuations. A way to eliminate this statistical fluctuation is suggested. The obtained dynamical ratios of higher net-proton cumulants are demonstrated to be more relevant to the underlying physics, i.e. the correlations between proton and antiproton, or the critical fluctuations.
C1 [Chen, Lizhu; Pan, Xue; Xiong, Fengbo; Li, Lin; Li, Zhiming; Wu, Yuanfang] Hua Zhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
[Chen, Lizhu; Wu, Yuanfang] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
[Li, Na] Hua Zhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China.
[Wang, Gang] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Wu, Yuanfang] Huazhong Normal Univ, Minist Educ, Key Lab Quark & Lepton Phys, Wuhan, Peoples R China.
RP Chen, LZ (reprint author), Hua Zhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
EM wuyf@phy.ccnu.edu.cn
FU NSFC of China [10835005, 11005046]; MOE of China [IRT0624, B08033]; US
Department of Energy, Office of Nuclear Physics
FX We are grateful for stimulating discussions with Dr Nu Xu, Xiaofeng Luo,
Dr Fuqiang Wang and Dr Zhangbu Xu. The first and last authors are
grateful for the hospitality of the BNL STAR group. This work is
supported in part by the NSFC of China under project no 10835005,
11005046, MOE of China under project nos IRT0624 and B08033 and a grant
from US Department of Energy, Office of Nuclear Physics.
NR 35
TC 5
Z9 5
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0954-3899
EI 1361-6471
J9 J PHYS G NUCL PARTIC
JI J. Phys. G-Nucl. Part. Phys.
PD NOV
PY 2011
VL 38
IS 11
AR 115004
DI 10.1088/0954-3899/38/11/115004
PG 7
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 839NS
UT WOS:000296375000005
ER
PT J
AU Moretto, LG
Elliott, JB
Phair, L
Lake, PT
AF Moretto, L. G.
Elliott, J. B.
Phair, L.
Lake, P. T.
TI The experimental liquid-vapor phase diagram of bulk nuclear matter
SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
LA English
DT Review
ID FINITE-SIZE BEHAVIOR; CRITICAL-POINT; DROPLET MODEL; MONTE-CARLO;
ISING-MODEL; HOT NUCLEI; MULTIFRAGMENTATION; TRANSITION; STATE; BARRIERS
AB The modern investigation of clusters, for which 1 << N << infinity, requires a generalization of the thermodynamics developed for infinite systems. For instance, in finite systems, phase transitions and phase coexistence become ill-defined with ambiguous signals. The existence of phase transitions in nuclear systems, in particular of the liquid-vapor kind, has been widely discussed and even experimentally claimed. A consistent and unambiguous approach to this problem requires a connection between finite systems and the corresponding infinite systems. Historically, this has been achieved at temperature T = 0 by the introduction of the liquid drop model and the extraction of the volume term, which is a fundamental quantity of nuclear matter. This work extends this approach to T > 0, by determining the liquid-vapor coexistence line and its termination at the critical point. Since there is no known experimental situation where a nuclear liquid and vapor are in coexistence, we establish a relationship between evaporation rates and saturated vapor concentration and characterize the saturated vapor with Fisher's droplet model. We validate this approach by analyzing cluster concentrations in the Ising and Lennard-Jones models and extracting the corresponding first-order coexistence line and critical temperature. Since the vapor of clusters coexists with a finite liquid drop, we devise a finite size correction leading to a modified Fisher equation. The application of the above techniques to nuclear systems requires dealing also with the Coulomb force. Nuclear cluster evaporation rates can be corrected for Coulomb effects and can be used to evaluate the cluster concentrations in the 'virtual' equilibrium vapor. These cluster concentrations, determined over a wide temperature range, can be analyzed by means of a modified Fisher formula. This leads to the extraction of the entire liquid-vapor coexistence line terminating at the critical point. A large body of experimental data has been analyzed in this manner and the liquid-vapor phase diagram of nuclear matter has been extracted.
C1 [Moretto, L. G.; Phair, L.; Lake, P. T.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Elliott, J. B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Moretto, LG (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM elliott38@llnl.gov
FU Office of Energy Research, Office of High Energy and Nuclear Physics,
Division of Nuclear Physics, of the US Department of Energy
[DE-AC02-05CH11231]; US Department of Energy, Lawrence Livermore
National Laboratory [E-AC52-07NA27344]
FX This work was performed by Lawrence Berkeley National Laboratory and was
supported by the Director, Office of Energy Research, Office of High
Energy and Nuclear Physics, Division of Nuclear Physics, of the US
Department of Energy under contract no DE-AC02-05CH11231. This work also
performed under the auspices of the US Department of Energy by Lawrence
Livermore National Laboratory under contract DE-AC52-07NA27344.
NR 86
TC 13
Z9 13
U1 0
U2 13
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0954-3899
J9 J PHYS G NUCL PARTIC
JI J. Phys. G-Nucl. Part. Phys.
PD NOV
PY 2011
VL 38
IS 11
AR 113101
DI 10.1088/0954-3899/38/11/113101
PG 31
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 839NS
UT WOS:000296375000001
ER
PT J
AU Rasmussen, AL
Diamond, DL
McDermott, JE
Gao, XL
Metz, TO
Matzke, MM
Carter, VS
Belisle, SE
Korth, MJ
Waters, KM
Smith, RD
Katze, MG
AF Rasmussen, Angela L.
Diamond, Deborah L.
McDermott, Jason E.
Gao, Xiaoli
Metz, Thomas O.
Matzke, Melissa M.
Carter, Victoria S.
Belisle, Sarah E.
Korth, Marcus J.
Waters, Katrina M.
Smith, Richard D.
Katze, Michael G.
TI Systems Virology Identifies a Mitochondrial Fatty Acid Oxidation Enzyme,
Dodecenoyl Coenzyme A Delta Isomerase, Required for Hepatitis C Virus
Replication and Likely Pathogenesis
SO JOURNAL OF VIROLOGY
LA English
DT Article
ID NONSTRUCTURAL PROTEIN 5A; RNA REPLICATION; MASS-SPECTROMETRY;
LIPID-METABOLISM; APOLIPOPROTEIN-E; CELLULAR COFACTORS; SOFTWARE
PACKAGE; BETA-OXIDATION; ACCURATE MASS; CELLS
AB We previously employed systems biology approaches to identify the mitochondrial fatty acid oxidation enzyme dodecenoyl coenzyme A delta isomerase (DCI) as a bottleneck protein controlling host metabolic reprogramming during hepatitis C virus (HCV) infection. Here we present the results of studies confirming the importance of DCI to HCV pathogenesis. Computational models incorporating proteomic data from HCV patient liver biopsy specimens recapitulated our original predictions regarding DCI and link HCV-associated alterations in cellular metabolism and liver disease progression. HCV growth and RNA replication in hepatoma cell lines stably expressing DCI-targeting short hairpin RNA (shRNA) were abrogated, indicating that DCI is required for productive infection. Pharmacologic inhibition of fatty acid oxidation also blocked HCV replication. Production of infectious HCV was restored by overexpression of an shRNA-resistant DCI allele. These findings demonstrate the utility of systems biology approaches to gain novel insight into the biology of HCV infection and identify novel, translationally relevant therapeutic targets.
C1 [Rasmussen, Angela L.; Diamond, Deborah L.; Carter, Victoria S.; Belisle, Sarah E.; Korth, Marcus J.; Katze, Michael G.] Univ Washington, Sch Med, Dept Microbiol, Seattle, WA 98195 USA.
[Gao, Xiaoli; Metz, Thomas O.; Smith, Richard D.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
RP Katze, MG (reprint author), Univ Washington, Sch Med, Dept Microbiol, Box 358070, Seattle, WA 98195 USA.
EM honey@u.washington.edu
RI Zhang, Yanfeng /G-8359-2011; Smith, Richard/J-3664-2012;
OI Smith, Richard/0000-0002-2381-2349; McDermott,
Jason/0000-0003-2961-2572; Rasmussen, Angela/0000-0001-9462-3169; Metz,
Tom/0000-0001-6049-3968
FU National Institute on Drug Abuse [1P30DA01562501]; U.S. Department of
Energy (DOE) Office of Biological and Environmental Research.; DOE
[DE-AC06-76RLO-1830]
FX This study was supported by National Institute on Drug Abuse grant
1P30DA01562501 to M.G.K. Portions of this work were performed at the
Environmental Molecular Sciences Laboratory, a national scientific user
facility located at the Pacific Northwest National Laboratory (PNNL) and
sponsored by the U.S. Department of Energy (DOE) Office of Biological
and Environmental Research. PNNL is operated by Battelle for the DOE
under contract DE-AC06-76RLO-1830.
NR 54
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U1 0
U2 2
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0022-538X
J9 J VIROL
JI J. Virol.
PD NOV
PY 2011
VL 85
IS 22
BP 11646
EP 11654
DI 10.1128/JVI.05605-11
PG 9
WC Virology
SC Virology
GA 840FB
UT WOS:000296422700010
PM 21917952
ER
PT J
AU Wu, Y
Fowlkes, JD
Roberts, NA
Diez, JA
Kondic, L
Gonzalez, AG
Rack, PD
AF Wu, Y.
Fowlkes, J. D.
Roberts, N. A.
Diez, J. A.
Kondic, L.
Gonzalez, A. G.
Rack, P. D.
TI Competing Liquid Phase Instabilities during Pulsed Laser Induced
Self-Assembly of Copper Rings into Ordered Nanoparticle Arrays on SiO2
SO LANGMUIR
LA English
DT Article
ID RAYLEIGH INSTABILITY; METAL-FILMS; MICROFLUIDICS; STABILITY; FLOWS
AB Nanoscale copper rings of different radii, thicknesses, and widths were synthesized on silicon dioxide thin films and were subsequently liquefied via a nanosecond pulse laser treatment. During the nanoscale liquid lifetimes, the rings experience competing retraction dynamics and thin film and/or Rayleigh Plateau types of instabilities, which lead to arrays of ordered nanodroplets. Surprisingly, the results are significantly different from those of similar experiments carried out on a Si surface.(1) We use hydrodynamic simulations to elucidate how the different liquid/solid interactions control the different instability mechanisms in the present problem.
C1 [Wu, Y.; Rack, P. D.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Fowlkes, J. D.; Roberts, N. A.; Rack, P. D.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Nanofabricat Res Lab, Oak Ridge, TN 37831 USA.
[Diez, J. A.; Gonzalez, A. G.] Univ Nacl Ctr Prov Buenos Aires, Inst Fis Arroyo Seco, RA-7000 Tandil, Argentina.
[Kondic, L.] New Jersey Inst Technol, Dept Math Sci, Ctr Appl Math & Stat, Newark, NJ 07102 USA.
RP Rack, PD (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
RI Roberts, Nicholas/B-3154-2009; Roberts, Nicholas/H-3275-2014;
OI Roberts, Nicholas/0000-0002-6490-9454; Rack, Philip/0000-0002-9964-3254;
Gonzalez, Alejandro G./0000-0002-4710-6414
FU U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and
Engineering Division; Office of Basic Energy Sciences, U.S. Department
of Energy; NSF [DMS-0908158]; ANPCyT-Argentina [PICT 2493/06]
FX P.D.R, J.D.F., and Y.W. acknowledge support from the U.S. Department of
Energy, Basic Energy Sciences, Materials Sciences and Engineering
Division for sponsoring the aspects of this work related to
understanding the fundamental mechanisms operative during liquid phase,
thin film dewetting. L.K., P.D.R, and J.D.F. also acknowledge that the
lithography and electron imaging results reported in this Article were
conducted at the Center for Nanophase Materials Sciences, which is
sponsored at Oak Ridge National Laboratory by the Office of Basic Energy
Sciences, U.S. Department of Energy. L.K. acknowledges support by the
NSF Grant No. DMS-0908158. J.A.D. and A.G.G. acknowledge
CONICET-Argentina for travel support within the International
Cooperation Program, and ANPCyT-Argentina for support within the project
PICT 2493/06.
NR 41
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U1 1
U2 20
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD NOV 1
PY 2011
VL 27
IS 21
BP 13314
EP 13323
DI 10.1021/la203165v
PG 10
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 837NZ
UT WOS:000296211800070
PM 21916507
ER
PT J
AU Williams, PT
AF Williams, Paul T.
TI Exercise Attenuates the Association of Body Weight with Diet in 106,737
Runners
SO MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
LA English
DT Article
DE PREVENTION; OBESITY; VIGOROUS PHYSICAL ACTIVITY; DIET-EXERCISE
INTERACTIONS
ID LIPOPROTEIN-LIPASE ACTIVITY; CORONARY-HEART-DISEASE; SKELETAL-MUSCLE;
APPETITE CONTROL; PHYSICAL-ACTIVITY; NONOBESE WOMEN; ADIPOSE-TISSUE;
RISK-FACTORS; FOOD-INTAKE; MASS INDEX
AB WILLIAMS, P. T. Exercise Attenuates the Association of Body Weight with Diet in 106,737 Runners. Med. Sci. Sports Exerc., Vol. 43, No. 11, pp. 2120-2126, 2011. Purpose: The high prevalence of obesity in Western societies has been attributed in part to high-fat low-CHO food consumption. However, people have also become less active, and inactivity may have increased the risk for weight gain from poor dietary choices. Analyses were performed to test whether diet-weight relationships were attenuated by vigorous exercise. Methods: Age-and education-adjusted cross-sectional regression analyses of 62,042 men and 44,695 women recruited for the National Runners' Health Study were conducted. Reported meat and fruit intakes were analyzed separately and as indicators of high-risk diets. Results: The runners were generally lean (mean +/- SD: males = 24.15 +/- 2.81 kg.m(-2), females = 21.63 +/- 2.70 kg.m(-2)) as measured by body mass index (BMI), educated (males = 16.42 +/- 2.47 yr, females = 16.04 +/- 2.32 yr), and middle-aged (males = 44.40 +/- 10.83 yr, females = 38.21 +/- 10.08 yr), who ran 5.30 +/- 3.23 km.d(-1) if male and 4.79 +/- 3.00 km.d(-1) if female. Running significantly attenuated BMI's relationship to reported meat and fruit intakes in men (P < 10(-8) and P < 10(-12), respectively) and women (P < 10(-15) and P < 10(-6), respectively). Specifically, compared with running <2 km.d(-1), running >8 km.d(-1) reduced the apparent BMI increase per serving of meat by 43% in men (slope +/- SE = from 0.74 +/- 0.10 to 0.42 +/- 0.06) and 55% in women (from 1.26 +/- 0.13 to 0.57 +/- 0.09) and reduced the apparent BMI reduction per serving of fruit by 75% in men (from -0.28 +/- 0.04 to -0.07 +/- 0.02) and 94% in women (from -0.16 +/- 0.05 to -0.01 +/- 0.02). Running also significantly attenuated the concordant relationship between reported meat intake and waist and chest circumferences in men (P < 10(-9) and P = 0.0002, respectively) and women (P = 0.0004 and P < 10(-5), respectively) and the concordant relationship between meat intake and hip circumference in women (P < 10(-6)). Conclusions: Vigorous exercise may mitigate diet-induced weight gain, albeit not guaranteeing protection from poor dietary choices.
C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94556 USA.
RP Williams, PT (reprint author), Lawrence Berkeley Natl Lab, Donner 464,1 Cyclotron Rd, Berkeley, CA 94556 USA.
EM ptwilliams@lbl.gov
FU National Heart, Lung, and Blood Institute [HL094717]; Institute of Aging
[AG032004]; Department of Energy [DE-AC03-76SF00098]
FX This research was supported by grant HL094717 from the National Heart,
Lung, and Blood Institute and grant AG032004 from the Institute of Aging
and was conducted at the Ernest Orlando Lawrence Berkeley National
Laboratory (Department of Energy DE-AC03-76SF00098 to the University of
California).
NR 40
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U1 0
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PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0195-9131
J9 MED SCI SPORT EXER
JI Med. Sci. Sports Exerc.
PD NOV
PY 2011
VL 43
IS 11
BP 2120
EP 2126
DI 10.1249/MSS.0b013e31821cd128
PG 7
WC Sport Sciences
SC Sport Sciences
GA 839MW
UT WOS:000296372100013
PM 21502899
ER
PT J
AU Volkow, ND
Wang, GJ
Newcorn, JH
Kollins, SH
Wigal, TL
Telang, F
Fowler, JS
Goldstein, RZ
Klein, N
Logan, J
Wong, C
Swanson, JM
AF Volkow, N. D.
Wang, G-J
Newcorn, J. H.
Kollins, S. H.
Wigal, T. L.
Telang, F.
Fowler, J. S.
Goldstein, R. Z.
Klein, N.
Logan, J.
Wong, C.
Swanson, J. M.
TI Motivation deficit in ADHD is associated with dysfunction of the
dopamine reward pathway
SO MOLECULAR PSYCHIATRY
LA English
DT Article
DE attention; brain imaging; catecholamines; personality; psychiatric
disorder; PET
ID ATTENTION-DEFICIT/HYPERACTIVITY DISORDER; HYPERACTIVITY DISORDER;
INCENTIVE MOTIVATION; HUMAN BRAIN; ADULT ADHD; PERSONALITY; BINDING;
PSYCHOPATHOLOGY; LEADERSHIP; BEHAVIOR
AB Attention-deficit hyperactivity disorder (ADHD) is typically characterized as a disorder of inattention and hyperactivity/impulsivity but there is increasing evidence of deficits in motivation. Using positron emission tomography (PET), we showed decreased function in the brain dopamine reward pathway in adults with ADHD, which, we hypothesized, could underlie the motivation deficits in this disorder. To evaluate this hypothesis, we performed secondary analyses to assess the correlation between the PET measures of dopamine D2/D3 receptor and dopamine transporter availability (obtained with [(11)C]raclopride and [(11)C]cocaine, respectively) in the dopamine reward pathway (midbrain and nucleus accumbens) and a surrogate measure of trait motivation (assessed using the Achievement scale on the Multidimensional Personality Questionnaire or MPQ) in 45 ADHD participants and 41 controls. The Achievement scale was lower in ADHD participants than in controls (11 +/- 5 vs 14 +/- 3, P < 0.001) and was significantly correlated with D2/D3 receptors (accumbens: r = 0.39, P < 0.008; midbrain: r = 0.41, P < 0.005) and transporters (accumbens: r = 0.35, P < 0.02) in ADHD participants, but not in controls. ADHD participants also had lower values in the Constraint factor and higher values in the Negative Emotionality factor of the MPQ but did not differ in the Positive Emotionality factor-and none of these were correlated with the dopamine measures. In ADHD participants, scores in the Achievement scale were also negatively correlated with symptoms of inattention (CAARS A, E and SWAN I). These findings provide evidence that disruption of the dopamine reward pathway is associated with motivation deficits in ADHD adults, which may contribute to attention deficits and supports the use of therapeutic interventions to enhance motivation in ADHD. Molecular Psychiatry (2011) 16, 1147-1154; doi:10.1038/mp.2010.97; published online 21 September 2010
C1 [Volkow, N. D.] Natl Inst Drug Abuse, Bethesda, MD 20892 USA.
[Volkow, N. D.; Telang, F.] NIAAA, Lab Neuroimaging, Bethesda, MD 90034 USA.
[Wang, G-J; Fowler, J. S.; Goldstein, R. Z.; Klein, N.; Logan, J.; Wong, C.] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
[Wang, G-J; Fowler, J. S.; Goldstein, R. Z.; Klein, N.; Logan, J.; Wong, C.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
[Wang, G-J; Newcorn, J. H.; Fowler, J. S.] Mt Sinai Med Ctr, Dept Psychiat, New York, NY 10029 USA.
[Kollins, S. H.] Duke Univ, Med Ctr, Dept Psychiat, Durham, NC 27710 USA.
[Wigal, T. L.; Swanson, J. M.] Univ Calif Irvine, Child Dev Ctr, Irvine, CA USA.
RP Volkow, ND (reprint author), Natl Inst Drug Abuse, 6001 Executive Blvd,Room 5274,MSC 9581, Bethesda, MD 20892 USA.
EM nvolkow@nida.nih.gov
RI Kollins, Scott/G-2965-2012;
OI Newcorn, Jeffrey /0000-0001-8993-9337
FU Eli Lilly; Ortho-McNeil Janssen; Addrenex Pharmaceuticals; Otsuka
Pharmaceuticals; Shire Pharmaceuticals; McNeil; Novartis; Shire; Alza;
Richwood; Celgene; Celltech; Gliatech; Cephalon; Watson; CIBA; Janssen;
National Institutes of Health (NIH); National Institute of Mental Health
[MH66961-02]
FX Dr Newcorn reported being a recipient of research support from Eli Lilly
and Ortho-McNeil Janssen, and serves as a consultant, advisor or both
for Astra Zeneca, BioBehavioral Diagnostics, Eli Lilly, Novartis,
Ortho-McNeil Janssen and Shire, and as a speaker for Ortho-McNeil
Janssen. Dr Kollins reported receiving research support, consulting fees
or both from Addrenex Pharmaceuticals, Otsuka Pharmaceuticals and Shire
Pharmaceuticals. Dr Wigal reported receiving support from Eli Lilly,
McNeil, Novartis and Shire. Dr Swanson reported receiving support from
Alza, Richwood, Shire, Celgene, Novartis, Celltech, Gliatech, Cephalon,
Watson, CIBA, Janssen and McNeil; has been on the advisory boards of
Alza, Richwood, Shire, Celgene, Novartis, Celltech, UCB, Gliatech,
Cephalon, McNeil and Eli Lilly; has been on the speaker's bureaus of
Alza, Shire, Novartis, Cellthech, UCB, Cephalon, CIBA, Janssen and
McNeil; and has consulted to Alza, Richwood, Shire, Clegene, Novarits,
Celltech, UCB, Gliatech, Cephalon, Watson, CIBA, Jansen, McNeil and Eli
Lilly. The other authors declare no conflict of interest.; This research
was carried out at Brookhaven National Laboratory (BNL) and was
supported in part by the Intramural Research Program of the National
Institutes of Health (NIH), the National Institute of Mental Health
(MH66961-02) and infrastructure support from the Department of Energy.
We thank the following BNL employees: Donald Warner for PET operations;
David Schlyer and Michael Schueller for cyclotron operations; Pauline
Carter, Millard Jayne and Barbara Hubbard for nursing care; Payton King
for plasma analysis and Lisa Muench, Youwen Xu and Colleen Shea for
radiotracer preparation; Karen Appelskog for protocol coordination; to
the following Duke employees: Joseph English and Allan Chrisman, for
subject recruitment and evaluation; to the following NIH employee: Linda
Thomas for editorial assistance. We also thank the individuals who
volunteered for these studies.
NR 35
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U1 6
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PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1359-4184
J9 MOL PSYCHIATR
JI Mol. Psychiatr.
PD NOV
PY 2011
VL 16
IS 11
BP 1147
EP 1154
DI 10.1038/mp.2010.97
PG 8
WC Biochemistry & Molecular Biology; Neurosciences; Psychiatry
SC Biochemistry & Molecular Biology; Neurosciences & Neurology; Psychiatry
GA 840HD
UT WOS:000296429100014
PM 20856250
ER
PT J
AU Duggan, KC
Hermanson, DJ
Musee, J
Prusakiewicz, JJ
Scheib, JL
Carter, BD
Banerjee, S
Oates, JA
Marnett, LJ
AF Duggan, Kelsey C.
Hermanson, Daniel J.
Musee, Joel
Prusakiewicz, Jeffery J.
Scheib, Jami L.
Carter, Bruce D.
Banerjee, Surajit
Oates, J. A.
Marnett, Lawrence J.
TI (R)-Profens are substrate-selective inhibitors of endocannabinoid
oxygenation by COX-2
SO NATURE CHEMICAL BIOLOGY
LA English
DT Article
ID CYCLOOXYGENASE ACTIVE-SITE; ANTIINFLAMMATORY AGENTS;
SYNAPTIC-TRANSMISSION; OXIDATIVE METABOLITE; ARACHIDONIC-ACID; GLYCEROL
ESTER; 2-ARACHIDONOYLGLYCEROL; BINDING; RECEPTOR; SYSTEM
AB Cyclooxygenase-2 (COX-2) catalyzes the oxygenation of arachidonic acid and the endocannabinoids 2-arachidonoylglycerol and arachidonoylethanolamide. Evaluation of a series of COX-2 inhibitors revealed that many weak competitive inhibitors of arachidonic acid oxygenation are potent inhibitors of endocannabinoid oxygenation. (R) enantiomers of ibuprofen, naproxen and flurbiprofen, which are considered to be inactive as COX-2 inhibitors, are potent 'substrate-selective inhibitors' of endocannabinoid oxygenation. Crystal structures of the COX-2-(R)-naproxen and COX-2-(R)-flurbiprofen complexes verified this unexpected binding and defined the orientation of the (R) enantiomers relative to (S) enantiomers. (R)-Profens selectively inhibited endocannabinoid oxygenation by lipopolysaccharide-stimulated dorsal root ganglion (DRG) cells. Substrate-selective inhibition provides new tools for investigating the role of COX-2 in endocannabinoid oxygenation and a possible explanation for the ability of (R)-profens to maintain endocannabinoid tone in models of neuropathic pain.
C1 [Duggan, Kelsey C.; Musee, Joel; Prusakiewicz, Jeffery J.; Scheib, Jami L.; Carter, Bruce D.; Marnett, Lawrence J.] Vanderbilt Univ, Sch Med, Dept Biochem, Nashville, TN 37212 USA.
[Hermanson, Daniel J.; Marnett, Lawrence J.] Vanderbilt Univ, Dept Chem, Nashville, TN USA.
[Banerjee, Surajit] Cornell Univ, NE Collaborat Access Team, Ithaca, NY USA.
[Banerjee, Surajit] Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY USA.
[Banerjee, Surajit] Argonne Natl Lab, Argonne, IL 60439 USA.
[Oates, J. A.] Vanderbilt Univ, Sch Med, Dept Med, Div Clin Pharmacol, Nashville, TN 37212 USA.
[Marnett, Lawrence J.] Vanderbilt Univ, Sch Med, Ctr Mol Toxicol, Nashville, TN 37212 USA.
[Marnett, Lawrence J.] Vanderbilt Univ, Sch Med, Vanderbilt Ingram Canc Ctr, Nashville, TN 37212 USA.
[Marnett, Lawrence J.] Vanderbilt Univ, Sch Med, Vanderbilt Inst Chem Biol, Nashville, TN 37212 USA.
[Oates, J. A.; Marnett, Lawrence J.] Vanderbilt Univ, Sch Med, Dept Pharmacol, Nashville, TN 37212 USA.
RP Marnett, LJ (reprint author), Vanderbilt Univ, Sch Med, Dept Biochem, Nashville, TN 37212 USA.
EM larry.marnett@vanderbilt.edu
OI Banerjee, Surajit/0000-0002-9414-7163
FU A.B. Hancock Jr. Memorial Laboratory for Cancer Research and by research
[CA89450, GM15431, NS064278]; US National Institutes of Health
[DA022873, DA031572]; National Center for Research Resources at the US
National Institutes of Health [RR-15301]; US Department of Energy,
Office of Basic Energy Sciences [AC02-06CH11357]
FX This work was supported by the A.B. Hancock Jr. Memorial Laboratory for
Cancer Research and by research (CA89450, GM15431, NS064278) and
training grants (DA022873, DA031572) from the US National Institutes of
Health. It is based upon research conducted at the Advanced Photon
Source on the Northeastern Collaborative Access Team beamlines, which
are supported by award RR-15301 from the National Center for Research
Resources at the US National Institutes of Health. Use of the Advanced
Photon Source is supported by the US Department of Energy, Office of
Basic Energy Sciences, under contract no. DE-AC02-06CH11357. We are
grateful to J. Harp for assistance with crystallography; K. Masuda, M.
Brown, R. Stevens and B. Cravatt for a sample of FAAH; A. Brash for a
sample of 15-lipoxygenase and J. Uddin for a sample of fluorocoxib A.
NR 48
TC 70
Z9 70
U1 0
U2 16
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 1552-4450
J9 NAT CHEM BIOL
JI Nat. Chem. Biol.
PD NOV
PY 2011
VL 7
IS 11
BP 803
EP 809
DI 10.1038/nchembio.663
PG 7
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 839PX
UT WOS:000296381600010
PM 22053353
ER
PT J
AU Pautz, SD
Pandya, TM
Adams, ML
AF Pautz, Shawn D.
Pandya, Tara M.
Adams, Marvin L.
TI Scalable Parallel Prefix Solvers for Discrete Ordinates Transport in
Multidimensions
SO NUCLEAR SCIENCE AND ENGINEERING
LA English
DT Article
ID ALGORITHM
AB The well-known "sweep" algorithm for inverting the streaming-plus-collision term in first-order deterministic radiation transport calculations suffers from parallel scaling issues caused by a lack of concurrency in the spatial dimension along the direction of particle travel. We investigate a new class of parallel algorithms that involves recasting the streaming-plus-collision problem in prefix form and solving via cyclic reduction. This method, although computationally more expensive at low levels of parallelism than the sweep algorithm, offers better theoretical scalability properties. Previous work has demonstrated this approach for one-dimensional calculations; we show how to extend it to multidimensional calculations. Notably, for multiple dimensions it appears that this approach is limited to long-characteristics discretizations; other discretizations cannot be cast in practical prefix,form. Computational results on two different massively parallel computer systems demonstrate that both our "forward" and "symmetric" algorithms behave similarly scaling well to larger degrees of parallelism than sweep-based solvers. We do observe some issues at the highest levels of parallelism (relative to the computer system size) and discuss possible causes. We conclude that this approach shows good potential for future parallel systems but that parallel scalability will depend on the architecture of the communication networks of these systems.
C1 [Pautz, Shawn D.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Pandya, Tara M.; Adams, Marvin L.] Texas A&M Univ, Dept Nucl Engn, College Stn, TX 77843 USA.
RP Pautz, SD (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM sdpautz@sandia.gov
FU SNL; Lockheed Martin company; U.S. Department of Energy's National
Nuclear Security Administration [DE-AC04-94AL85000]; Lawrence Livermore
National Laboratory; King Abdullah University of Science and Technology
[KUS-C1-016-04]
FX Work by the first author (S.D.P.) was supported by the Laboratory
Directed Research and Development program at SNL, which 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. Work by the second and third authors has been
supported by Lawrence Livermore National Laboratory. Work by the third
author has also been supported by award KUS-C1-016-04, made by King
Abdullah University of Science and Technology.
NR 19
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U1 0
U2 1
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5639
J9 NUCL SCI ENG
JI Nucl. Sci. Eng.
PD NOV
PY 2011
VL 169
IS 3
BP 245
EP 261
PG 17
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 840CG
UT WOS:000296415300002
ER
PT J
AU Conlin, JL
Tobin, SJ
LaFleur, AM
Hu, JW
Lee, T
Sandoval, NP
Schear, MA
AF Conlin, Jeremy Lloyd
Tobin, Stephen J.
LaFleur, Adrienne M.
Hu, Jianwei
Lee, TaeHoon
Sandoval, Nathan P.
Schear, Melissa A.
TI On Using Code Emulators and Monte Carlo Estimation to Predict Assembly
Attributes of Spent Fuel Assemblies for Safeguards Applications
SO NUCLEAR SCIENCE AND ENGINEERING
LA English
DT Article
AB The quantification of the plutonium mass in spent nuclear fuel assemblies is an important measurement for nuclear safeguards practitioners. A program is well underway to develop nondestructive assay instruments that, when combined, will be able to quantify the plutonium content of a spent nuclear fuel assembly. Each instrument will quantify a specific attribute of the spent fuel assembly, e.g., the fissile content. In this paper, we present a Monte Carlo based method of estimating the mean and distribution of some assembly attributes. An MCNPX model of each instrument has been created, and the response of the instrument was simulated for a range of spent fuel assemblies with discrete parameters (e.g., burnup, initial enrichment, and cooling time). The Monte Carlo based method interpolates between the modeled results for an instrument to emulate a response for parameters not explicitly modeled. We demonstrate the usefulness of this technique in applying the technique to six different instruments under investigation. The results show that this Monte Carlo based method can be used to estimate the assembly attributes of a spent fuel assembly based upon the measured response from the instrument.
C1 [Conlin, Jeremy Lloyd; Tobin, Stephen J.; LaFleur, Adrienne M.; Hu, Jianwei; Lee, TaeHoon; Sandoval, Nathan P.; Schear, Melissa A.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
RP Conlin, JL (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA.
EM jlconlin@lanl.gov
FU NGSI
FX This work was performed under the sponsorship of the NGSI. The authors
would like to thank the following individuals (in no particular order):
J. Lestone, Los Alamos National Laboratory (LANL), for his idea of using
Monte Carlo techniques for this type of analysis; T. Burr, LANL, for his
statistical help; J. Cheatham, Oak Ridge National Laboratory, for his
initial investigation into this domain; and J. Hendricks, for his
comments and suggestions on the Monte Carlo process.
NR 16
TC 1
Z9 1
U1 0
U2 1
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5639
J9 NUCL SCI ENG
JI Nucl. Sci. Eng.
PD NOV
PY 2011
VL 169
IS 3
BP 314
EP 328
PG 15
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 840CG
UT WOS:000296415300007
ER
PT J
AU Snyder, PW
Mecinovic, J
Moustakas, DT
Thomas, SW
Harder, M
Mack, ET
Lockett, MR
Heroux, A
Sherman, W
Whitesides, GM
AF Snyder, Phillip W.
Mecinovic, Jasmin
Moustakas, Demetri T.
Thomas, Samuel W., III
Harder, Michael
Mack, Eric T.
Lockett, Matthew R.
Heroux, Annie
Sherman, Woody
Whitesides, George M.
TI Mechanism of the hydrophobic effect in the biomolecular recognition of
arylsulfonamides by carbonic anhydrase
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE physical-organic; entropy; surface water; benzo-extension; hydration
ID INHOMOGENEOUS FLUID APPROACH; PROTEIN-LIGAND BINDING; SCALED-PARTICLE
THEORY; SOLVATION THERMODYNAMICS; BIOLOGICAL RECOGNITION; MOLECULAR
RECOGNITION; NONPOLAR SOLUTES; AQUEOUS-SOLUTION; WATER-STRUCTURE;
AROMATIC RINGS
AB The hydrophobic effect-a rationalization of the insolubility of nonpolar molecules in water-is centrally important to biomolecular recognition. Despite extensive research devoted to the hydrophobic effect, its molecular mechanisms remain controversial, and there are still no reliably predictive models for its role in protein-ligand binding. Here we describe a particularly well-defined system of protein and ligands-carbonic anhydrase and a series of structurally homologous heterocyclic aromatic sulfonamides-that we use to characterize hydrophobic interactions thermodynamically and structurally. In binding to this structurally rigid protein, a set of ligands (also defined to be structurally rigid) shows the expected gain in binding free energy as hydrophobic surface area is added. Isothermal titration calorimetry demonstrates that enthalpy determines these increases in binding affinity, and that changes in the heat capacity of binding are negative. X-ray crystallography and molecular dynamics simulations are compatible with the proposal that the differences in binding between the homologous ligands stem from changes in the number and organization of water molecules localized in the active site in the bound complexes, rather than (or perhaps in addition to) release of structured water from the apposed hydrophobic surfaces. These results support the hypothesis that structured water molecules-including both the molecules of water displaced by the ligands and those reorganized upon ligand binding-determine the thermodynamics of binding of these ligands at the active site of the protein. Hydrophobic effects in various contexts have different structural and thermodynamic origins, although all may be manifestations of the differences in characteristics of bulk water and water close to hydrophobic surfaces.
C1 [Snyder, Phillip W.; Mecinovic, Jasmin; Moustakas, Demetri T.; Thomas, Samuel W., III; Harder, Michael; Mack, Eric T.; Lockett, Matthew R.; Whitesides, George M.] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA.
[Heroux, Annie] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
[Sherman, Woody] Schrodinger Inc, New York, NY 10036 USA.
[Whitesides, George M.] Harvard Univ, Wyss Inst Biol Inspired Engn, Cambridge, MA 02138 USA.
RP Whitesides, GM (reprint author), Harvard Univ, Dept Chem & Chem Biol, 12 Oxford St, Cambridge, MA 02138 USA.
EM gwhitesides@gmwgroup.harvard.edu
RI Mack, Eric/F-6363-2010; Lockett, Matthew/I-2874-2012; Thomas,
Samuel/B-3257-2008; Mecinovic, Jasmin/F-9694-2015; Lockett,
Matthew/A-6020-2015
OI Thomas, Samuel/0000-0002-0811-9781; Mecinovic,
Jasmin/0000-0002-5559-3822; Lockett, Matthew/0000-0003-4851-7757
FU National Institutes of Health (NIH) [GM051559, GM030367, P41RR012408];
US Department of Energy
FX We thank Pat Connelly and Professor Eugene Shakhnovich for helpful
discussions. This work was supported by the National Institutes of
Health (NIH) (GM051559 and GM030367). Support for the National
Synchrotron Light is provided by the US Department of Energy, and the
NIH (P41RR012408).
NR 53
TC 132
Z9 132
U1 2
U2 79
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD NOV 1
PY 2011
VL 108
IS 44
BP 17889
EP 17894
DI 10.1073/pnas.1114107108
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 839NH
UT WOS:000296373400012
PM 22011572
ER
PT J
AU Bateman, A
Agrawal, S
Birney, E
Bruford, EA
Bujnicki, JM
Cochrane, G
Cole, JR
Dinger, ME
Enright, AJ
Gardner, PP
Gautheret, D
Griffiths-Jones, S
Harrow, J
Herrero, J
Holmes, IH
Huang, HD
Kelly, KA
Kersey, P
Kozomara, A
Lowe, TM
Marz, M
Moxon, S
Pruitt, KD
Samuelsson, T
Stadler, PF
Vilella, AJ
Vogel, JH
Williams, KP
Wright, MW
Zwieb, C
AF Bateman, Alex
Agrawal, Shipra
Birney, Ewan
Bruford, Elspeth A.
Bujnicki, Janusz M.
Cochrane, Guy
Cole, James R.
Dinger, Marcel E.
Enright, Anton J.
Gardner, Paul P.
Gautheret, Daniel
Griffiths-Jones, Sam
Harrow, Jen
Herrero, Javier
Holmes, Ian H.
Huang, Hsien-Da
Kelly, Krystyna A.
Kersey, Paul
Kozomara, Ana
Lowe, Todd M.
Marz, Manja
Moxon, Simon
Pruitt, Kim D.
Samuelsson, Tore
Stadler, Peter F.
Vilella, Albert J.
Vogel, Jan-Hinnerk
Williams, Kelly P.
Wright, Mathew W.
Zwieb, Christian
TI RNAcentral: A vision for an international database of RNA sequences
SO RNA-A PUBLICATION OF THE RNA SOCIETY
LA English
DT Article
DE sequence database; federation; noncoding RNA
ID TRANS-ACTING SIRNAS; NONCODING RNAS; CAENORHABDITIS-ELEGANS; MICRORNA;
GENES; ARABIDOPSIS; EXPRESSION; COMPLEX; ANNOTATION; RESOURCES
AB During the last decade there has been a great increase in the number of noncoding RNA genes identified, including new classes such as microRNAs and piRNAs. There is also a large growth in the amount of experimental characterization of these RNA components. Despite this growth in information, it is still difficult for researchers to access RNA data, because key data resources for noncoding RNAs have not yet been created. The most pressing omission is the lack of a comprehensive RNA sequence database, much like UniProt, which provides a comprehensive set of protein knowledge. In this article we propose the creation of a new open public resource that we term RNAcentral, which will contain a comprehensive collection of RNA sequences and fill an important gap in the provision of biomedical databases. We envision RNA researchers from all over the world joining a federated RNAcentral network, contributing specialized knowledge and databases. RNAcentral would centralize key data that are currently held across a variety of databases, allowing researchers instant access to a single, unified resource. This resource would facilitate the next generation of RNA research and help drive further discoveries, including those that improve food production and human and animal health. We encourage additional RNA database resources and research groups to join this effort. We aim to obtain international network funding to further this endeavor.
C1 [Bateman, Alex; Gardner, Paul P.; Harrow, Jen; Vogel, Jan-Hinnerk] Wellcome Trust Sanger Inst, Hinxton CB10 1SA, England.
[Agrawal, Shipra] IBAB, Bangalore 560100, Karnataka, India.
[Agrawal, Shipra] BioCOS Life Sci Private Ltd, Bangalore 560100, Karnataka, India.
[Birney, Ewan; Bruford, Elspeth A.; Cochrane, Guy; Enright, Anton J.; Herrero, Javier; Kersey, Paul; Vilella, Albert J.; Wright, Mathew W.] European Bioinformat Inst, Hinxton CB10 1SD, England.
[Bujnicki, Janusz M.] Int Inst Mol & Cell Biol Warsaw, Lab Bioinformat & Prot Engn, PL-02109 Warsaw, Poland.
[Bujnicki, Janusz M.] Fac Biol, Inst Mol Biol & Biotechnol, Lab Bioinformat, PL-61614 Poznan, Poland.
[Cole, James R.] Michigan State Univ, Ctr Microbial Ecol, E Lansing, MI 48824 USA.
[Dinger, Marcel E.] Univ Queensland, Inst Mol Biosci, St Lucia, Qld 4072, Australia.
[Gautheret, Daniel] Univ Paris 11, UMR CNRS 8621, Inst Genet & Microbiol, F-91405 Orsay, France.
[Griffiths-Jones, Sam; Kozomara, Ana] Univ Manchester, Fac Life Sci, Manchester M13 9PT, Lancs, England.
[Holmes, Ian H.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
[Huang, Hsien-Da] Natl Chiao Tung Univ, Inst Bioinformat & Syst Biol, Hsinchu 30050, Taiwan.
[Kelly, Krystyna A.] Univ Cambridge, Dept Plant Sci, Cambridge CB2 3EA, England.
[Lowe, Todd M.] Univ Calif Santa Cruz, Dept Biomol Engn, Santa Cruz, CA 95064 USA.
[Marz, Manja] Inst Pharmaceut Chem, RNA Bioinformat Grp, D-35037 Marburg, Germany.
[Moxon, Simon] Univ E Anglia, Norwich NR4 7TJ, Norfolk, England.
[Pruitt, Kim D.] Natl Lib Med, Natl Ctr Biotechnol Informat, Bethesda, MD 20894 USA.
[Samuelsson, Tore] Univ Goteborg, Dept Med Biochem, S-40530 Gothenburg, Sweden.
[Stadler, Peter F.] Univ Leipzig, Bioinformat Grp, Dept Comp Sci, D-04009 Leipzig, Germany.
[Williams, Kelly P.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Zwieb, Christian] Univ Texas Hlth Sci Ctr San Antonio, Dept Biochem, San Antonio, TX 78229 USA.
RP Bateman, A (reprint author), Wellcome Trust Sanger Inst, Wellcome Trust Genome Campus, Hinxton CB10 1SA, England.
EM agb@sanger.ac.uk
RI Dinger, Marcel/D-4209-2009; Moxon, Simon/A-5385-2010; Wright,
Mathew/H-5394-2012; Enright, Anton/F-3094-2011; Vogel,
Jan-Hinnerk/C-4582-2013; Griffiths-Jones, Sam/H-2998-2014; Stadler,
Peter F./L-7857-2015;
OI Herrero, Javier/0000-0001-7313-717X; Bruford,
Elspeth/0000-0002-8380-5247; Enright, Anton/0000-0002-6090-3100; Kersey,
Paul/0000-0002-7054-800X; Birney, Ewan/0000-0001-8314-8497; Holmes,
Ian/0000-0001-7639-5369; Dinger, Marcel/0000-0003-4423-934X; Vilella,
Albert/0000-0002-2005-2516; Bateman, Alex/0000-0002-6982-4660; Wright,
Mathew/0000-0002-2650-2426; Griffiths-Jones, Sam/0000-0001-6043-807X;
Stadler, Peter F./0000-0002-5016-5191; Gardner,
Paul/0000-0002-7808-1213; Cochrane, Guy/0000-0001-7954-7057
FU NHGRI NIH HHS [P41 HG003345]
NR 50
TC 35
Z9 35
U1 1
U2 7
PU COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
PI COLD SPRING HARBOR
PA 1 BUNGTOWN RD, COLD SPRING HARBOR, NY 11724 USA
SN 1355-8382
J9 RNA
JI RNA-Publ. RNA Soc.
PD NOV
PY 2011
VL 17
IS 11
BP 1941
EP 1946
DI 10.1261/rna.2750811
PG 6
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 841DJ
UT WOS:000296492400001
PM 21940779
ER
PT J
AU Grosbois, C
Courtin-Nomade, A
Robin, E
Bril, H
Tamura, N
Schafer, J
Blanc, G
AF Grosbois, C.
Courtin-Nomade, A.
Robin, E.
Bril, H.
Tamura, N.
Schaefer, J.
Blanc, G.
TI Fate of arsenic-bearing phases during the suspended transport in a gold
mining district (Isle river Basin, France)
SO SCIENCE OF THE TOTAL ENVIRONMENT
LA English
DT Article
DE Isle River; Suspended material; Arsenic; Bearing-phases; Clay minerals;
Oxyhydroxides
ID TRACE-ELEMENTS; EXTRACTION PROCEDURES; LE-BOURNEIX; SEDIMENTS;
SPECIATION; METALS; ADSORPTION; IRON; TRANSFORMATION; GANOPHYLLITE
AB Arsenic-rich (similar to 140-1520 mg.kg(-1)) suspended particulate matter (SPM) was collected daily with an automatic sampler in the Upper Isle River (France) draining a former gold mining district in order to better understand the fate of arsenic during the suspended transport (particles smaller than 50 pm). Various techniques at a micrometric scale (EPMA, quantitative SEM-EDS with an automated particle counting including classification system and mu XRD) were used to directly characterize As-bearing phases. The most frequent ones were aggregates of fine clay particles. Their mineralogy varied with particle sources involved. These aggregates were formed by chlorite-phlogopite-kaolinite assemblages during the high flow and chlorite-illite-montmorillonite during the low flow. Among all the observed As-carriers in SPM, these clay assemblages were the least As-rich (0.10 up to 1.58 wt.% As) and their median As concentrations suggested that they were less concentrated during the high flow than during the low flow. Iron oxyhydroxides were evidenced by mu XRD in these clay aggregates, either as micro- to nano-sized particles and/or as coating.
(Mn, Fe)oxyhydroxides were also present as discrete particles. Manganese oxides (0.14-1.26 wt.% As) transport significantly more arsenic during the low flow than during the high flow (0.16-0.79 wt.% As). The occurrence of Fe oxyhydroxide particles appeared more complex. During the low flow, observations on banks and in wetlands of freshly precipitated Fe hydroxides (ferrihydrite-type) presented the highest As concentrations (up to 6.5 wt.% As) but they were barely detected in SPM at a microscale. During the high flow, As-rich Fe-oxyhydroxides (0.10-2.80 wt.% As) were more frequent, reflecting mechanical erosion and transport when the surface water level increased.
Arsenic transfers from SPM to corresponding aqueous fraction mostly depend on As-carrier stability. This study shows the temporal occurrence of each type of As-bearing phases in SPM, their As concentrations at a particle scale and abundance according to hydrological periods. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Grosbois, C.] Univ Orleans, Univ Tours, UMR CNRS ISTO 6113, F-37200 Tours, France.
[Courtin-Nomade, A.; Bril, H.] Univ Limoges, GRESE, EA 4330, F-87000 Limoges, France.
[Robin, E.] Univ Orsay, LSCE, UMR CEA CNRS 1572, F-91198 Gif Sur Yvette, France.
[Tamura, N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Schaefer, J.; Blanc, G.] Univ Bordeaux, UMR CNRS EPOC 5805, F-33405 Talence, France.
RP Grosbois, C (reprint author), Univ Orleans, Univ Tours, UMR CNRS ISTO 6113, Parc Grandmont, F-37200 Tours, France.
EM cecile.grosbois@univ-tours.fr
RI robin, eric/H-8125-2014
OI robin, eric/0000-0002-5596-2640
FU INSU/CNRS; Office of Science, Office of Basic Energy Sciences, Materials
Science Division, of the US Department of Energy at Lawrence Berkeley
National Laboratory [DE-AC02-05CH11231]
FX The financial support of this project was provided by the "Conseil
Regional du Limousin". The authors would like to thank M. Peymirat
(Univ. Limoges) for thin section preparations from Teflon filters and F.
Moatar (Univ. Tours) and EC2C0 program (INSU/CNRS, VARIFLUX project) for
funding travels to Berkeley (Ca, USA). The Advanced Light Source is
supported by the Director, Office of Science, Office of Basic Energy
Sciences, Materials Science Division, of the US Department of Energy
under Contract No. DE-AC02-05CH11231 at Lawrence Berkeley National
Laboratory. The micro-diffraction program at the ALS on beamline 12.3.2
was made possible by NSF grant # 0416243. The authors really appreciate
all the detailed review of Pr Drahota and an anomynous reviewer for
improving the manuscript.
NR 63
TC 8
Z9 8
U1 0
U2 26
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0048-9697
J9 SCI TOTAL ENVIRON
JI Sci. Total Environ.
PD NOV 1
PY 2011
VL 409
IS 23
BP 4986
EP 4999
DI 10.1016/j.scitotenv.2011.07.045
PG 14
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 836RL
UT WOS:000296128700013
PM 21925708
ER
PT J
AU Monazam, ER
Shadle, LJ
Siriwardane, R
AF Monazam, Esmail R.
Shadle, Lawrence J.
Siriwardane, Ranjani
TI Equilibrium and Absorption Kinetics of Carbon Dioxide by Solid Supported
Amine Sorbent
SO AICHE JOURNAL
LA English
DT Article
DE adsorption gas; diffusion; gas purification; reaction kinetics; design
ID CAPTURE; CO2
AB The equilibrium and conversion-time data on the absorption of carbon dioxide (CO(2)) with amine-based solid sorbent were analyzed over the range of 303-373 K. Data on CO(2) loading on amine based solid sorbent at these temperatures and CO(2) partial pressure between 10 and 760 mm Hg obtained from volumetric adsorption apparatus were fitted to a simple equilibrium model to generate the different parameters (including equilibrium constant) in the model. Using these constants, a correlation was obtained to define equilibrium constant and maximum CO(2) loading as a function of temperature. In this study, a shrinking core model (SCM) was applied to elucidate the relative importance of pore diffusion and surface chemical reaction in controlling the rate of reaction. Application of SCM to the data suggested a surface reaction-controlled mechanism for the temperature of up to 40 degrees C and pore-diffusion mechanism at higher temperature. Published 2011 American Institute of Chemical Engineers AIChE J, 57: 3153-3159, 2011
C1 [Shadle, Lawrence J.; Siriwardane, Ranjani] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Monazam, Esmail R.] PLLC, REM Engn Serv, Morgantown, WV 26505 USA.
RP Shadle, LJ (reprint author), US DOE, Natl Energy Technol Lab, 3610 Collins Ferry Rd, Morgantown, WV 26507 USA.
EM lshadl@netl.doe.gov
OI Shadle, Lawrence/0000-0002-6283-3628
FU Department of Energy
FX The authors thank the Department of Energy for funding the research
through the Fossil Energy's Carbon Sequestration/CO2 Capture
Research program.
NR 11
TC 12
Z9 12
U1 0
U2 30
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0001-1541
J9 AICHE J
JI AICHE J.
PD NOV
PY 2011
VL 57
IS 11
BP 3153
EP 3159
DI 10.1002/aic.12516
PG 7
WC Engineering, Chemical
SC Engineering
GA 835VE
UT WOS:000296063500020
ER
PT J
AU Pienkos, PT
Laurens, L
Aden, A
AF Pienkos, Philip T.
Laurens, Lieve
Aden, Andy
TI Making Biofuel from Microalgae
SO AMERICAN SCIENTIST
LA English
DT Article
ID ALGAE
C1 [Pienkos, Philip T.; Laurens, Lieve; Aden, Andy] NREL, Natl Bioenergy Ctr, Golden, CO 80401 USA.
RP Pienkos, PT (reprint author), NREL, Natl Bioenergy Ctr, 1617 Cole Blvd, Golden, CO 80401 USA.
EM philip.pienkos@nrel.gov
RI Laurens, Lieve/B-3545-2013
NR 7
TC 7
Z9 7
U1 3
U2 34
PU SIGMA XI-SCI RES SOC
PI RES TRIANGLE PK
PA PO BOX 13975, RES TRIANGLE PK, NC 27709 USA
SN 0003-0996
J9 AM SCI
JI Am. Scientist
PD NOV-DEC
PY 2011
VL 99
IS 6
BP 474
EP 481
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 834WB
UT WOS:000295994100021
ER
PT J
AU Han, X
Zhang, MG
Han, ZW
Xin, JY
Liu, XH
AF Han, Xiao
Zhang, Meigen
Han, Zhiwei
Xin, Jinyuan
Liu, Xiaohong
TI Simulation of aerosol direct radiative forcing with RAMS-CMAQ in East
Asia
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE CMAQ; Aerosols; Optical properties; Radiative forcing
ID CLIMATE-CHEMISTRY/AEROSOL MODEL; ANTHROPOGENIC SULFATE AEROSOL; REGIONAL
CLIMATE; ACE-ASIA; SEASONAL-VARIATIONS; NITRATE AEROSOL; TRACE-P;
SYSTEM; CHINA; TRENDS
AB The air quality modeling system RAMS-CMAQ is developed to assess aerosol direct radiative forcing by linking simulated meteorological parameters and aerosol mass concentration with the aerosol optical properties/radiative transfer module in this study. The module is capable of accounting for important factors that affect aerosol optical properties and radiative effect, such as incident wave length, aerosol size distribution, water uptake, and internal mixture. Subsequently, the modeling system is applied to simulate the temporal and spatial variations in mass burden, optical properties, and direct radiative forcing of diverse aerosols, including sulfate, nitrate, ammonium, black carbon, organic carbon, dust, and sea salt over East Asia throughout 2005. Model performance is fully evaluated using various observational data, including satellite monitoring of MODIS and surface measurements of EANET (Acid Deposition Monitoring Network), AERONET (Aerosol Robotic Network), and CSHNET (Chinese Sun Hazemeter Network). The correlation coefficients of the comparisons of daily average mass concentrations of sulfate, PM2.5, and PM10 between simulations and EANET measurements are 0.70, 0.61, and 0.64, respectively. It is also determined that the modeled aerosol optical depth (AOD) is in congruence with the observed results from the AERONET, the CSHNET, and the MODIS. The model results suggest that the high AOD values ranging from 0.8 to 1.2 are mainly distributed over the Sichuan Basin as well as over central and southeastern China, in East Asia. The aerosol direct radiative forcing patterns generally followed the AOD patterns. The strongest forcing effect ranging from -12 to -8 W m(-2) was mainly distributed over the Sichuan Basin and the eastern China's coastal regions in the all-sky case at TOA, and the forcing effect ranging from -8 to -4 W m(-2) could be found over entire eastern China, Korea, Japan, East China Sea, and the sea areas of Japan (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Han, Xiao; Zhang, Meigen; Xin, Jinyuan] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China.
[Han, Zhiwei] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Res Temperate E Asia, Beijing 100029, Peoples R China.
[Liu, Xiaohong] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Zhang, MG (reprint author), Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, HuaYan BeiLi 40, Beijing 100029, Peoples R China.
EM mgzhang@mail.iap.ac.cn
RI 辛, 金元/F-7310-2012; Wang, ZF/D-7202-2012; Liu, Xiaohong/E-9304-2011
OI 辛, 金元/0000-0003-4243-5072; Wang, ZF/0000-0002-7062-6012; Liu,
Xiaohong/0000-0002-3994-5955
FU Chinese Academy of Sciences [KZCX2-YW-Q11-04]; National Natural Science
Foundation of China [41005064]
FX This study was supported by the Knowledge Innovation Program of the
Chinese Academy of Sciences (KZCX2-YW-Q11-04) and the National Natural
Science Foundation of China (Grant No. 41005064). EANET (the Acid
Deposition Monitoring Network), AERONET (the Aerosol Robotic Network),
and CSHNET (the Chinese Sun Hazemeter Network) are acknowledged for
providing observational data sets used in this study.
NR 59
TC 17
Z9 20
U1 3
U2 45
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1352-2310
EI 1873-2844
J9 ATMOS ENVIRON
JI Atmos. Environ.
PD NOV
PY 2011
VL 45
IS 36
BP 6576
EP 6592
DI 10.1016/j.atmosenv.2011.08.006
PG 17
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 837RF
UT WOS:000296220200010
ER
PT J
AU Paszczynski, AJ
Paidisetti, R
Johnson, AK
Crawford, RL
Colwell, FS
Green, T
Delwiche, M
Lee, H
Newby, D
Brodie, EL
Conrad, M
AF Paszczynski, Andrzej J.
Paidisetti, Ravindra
Johnson, Andrew K.
Crawford, Ronald L.
Colwell, Frederick S.
Green, Tonia
Delwiche, Mark
Lee, Hope
Newby, Deborah
Brodie, Eoin L.
Conrad, Mark
TI Proteomic and targeted qPCR analyses of subsurface microbial communities
for presence of methane monooxygenase
SO BIODEGRADATION
LA English
DT Article
DE Proteomics; Methanotrophs; Co-metabolism; Methane monooxygenase;
Trichloroethylene
ID METHYLOSINUS-TRICHOSPORIUM OB3B; TRICHLOROETHYLENE DEGRADATION;
METHANOTROPHIC BACTERIA; ENVIRONMENTAL-SAMPLES; AMMONIA MONOOXYGENASE;
OXIDIZING BACTERIA; FIELD EVIDENCE; RIBOSOMAL-RNA; GENES; BIODEGRADATION
AB The Test Area North (TAN) site at the Idaho National Laboratory near Idaho Falls, ID, USA, sits over a trichloroethylene (TCE) contaminant plume in the Snake River Plain fractured basalt aquifer. Past observations have provided evidence that TCE at TAN is being transformed by biological natural attenuation that may be primarily due to co-metabolism in aerobic portions of the plume by methanotrophs. TCE co-metabolism by methanotrophs is the result of the broad substrate specificity of microbial methane monooxygenase which permits non-specific oxidation of TCE in addition to the primary substrate, methane. Arrays of experimental approaches have been utilized to understand the biogeochemical processes driving intrinsic TCE co-metabolism at TAN. In this study, aerobic methanotrophs were enumerated by qPCR using primers targeting conserved regions of the genes pmoA and mmoX encoding subunits of the particulate MMO (pMMO) and soluble MMO (sMMO) enzymes, respectively, as well as the gene mxa encoding the downstream enzyme methanol dehydrogenase. Identification of proteins in planktonic and biofilm samples from TAN was determined using reverse phase ultra-performance liquid chromatography (UPLC) coupled with a quadrupole-time-of-flight (QToF) mass spectrometer to separate and sequence peptides from trypsin digests of the protein extracts. Detection of MMO in unenriched water samples from TAN provides direct evidence of intrinsic methane oxidation and TCE co-metabolic potential of the indigenous microbial population. Mass spectrometry is also well suited for distinguishing which form of MMO is expressed in situ either soluble or particulate. Using this method, pMMO proteins were found to be abundant in samples collected from wells within and adjacent to the TCE plume at TAN.
C1 [Paszczynski, Andrzej J.; Paidisetti, Ravindra; Johnson, Andrew K.; Crawford, Ronald L.; Green, Tonia] Univ Idaho, Environm Biotechnol Inst, Moscow, ID 83844 USA.
[Colwell, Frederick S.] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA.
[Delwiche, Mark; Lee, Hope; Newby, Deborah] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Brodie, Eoin L.; Conrad, Mark] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Paszczynski, AJ (reprint author), Univ Idaho, Environm Biotechnol Inst, POB 441052, Moscow, ID 83844 USA.
EM andrzej@uidaho.edu
RI Conrad, Mark/G-2767-2010; Brodie, Eoin/A-7853-2008
OI Brodie, Eoin/0000-0002-8453-8435
FU Office of Science, Office of Biological and Environmental Research,
Environmental Remediation Sciences Division, of the U.S. Department of
Energy [DE-FG02-06ER64198, DE-AC02-05CH11231, DEAC07-05ID14517]
FX This research was funded by the Office of Science, Office of Biological
and Environmental Research, Environmental Remediation Sciences Division,
of the U.S. Department of Energy under Contract Numbers
DE-FG02-06ER64198 (to the University of Idaho), DE-AC02-05CH11231 (to
Lawrence Berkeley National Laboratory), and DEAC07-05ID14517 (to the
Idaho National Laboratory).
NR 49
TC 13
Z9 15
U1 1
U2 45
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0923-9820
J9 BIODEGRADATION
JI Biodegradation
PD NOV
PY 2011
VL 22
IS 6
BP 1045
EP 1059
DI 10.1007/s10532-011-9462-4
PG 15
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA 834DJ
UT WOS:000295939300001
PM 21360114
ER
PT J
AU Kalyanaraman, A
Cannon, WR
Latt, B
Baxter, DJ
AF Kalyanaraman, Ananth
Cannon, William R.
Latt, Benjamin
Baxter, Douglas J.
TI MapReduce implementation of a hybrid spectral library-database search
method for large-scale peptide identification
SO BIOINFORMATICS
LA English
DT Article
AB A MapReduce-based implementation called MRMSPolygraph for parallelizing peptide identification from mass spectrometry data is presented. The underlying serial method, MSPolygraph, uses a novel hybrid approach to match an experimental spectrum against a combination of a protein sequence database and a spectral library. Our MapReduce implementation can run on any Hadoop cluster environment. Experimental results demonstrate that, relative to the serial version, MR-MSPolygraph reduces the time to solution from weeks to hours, for processing tens of thousands of experimental spectra. Speedup and other related performance studies are also reported on a 400-core Hadoop cluster using spectral datasets from environmental microbial communities as inputs.
C1 [Kalyanaraman, Ananth; Latt, Benjamin] Washington State Univ, Sch Elect Engn & Comp Sci, Pullman, WA 99164 USA.
[Cannon, William R.] Pacific NW Natl Lab, Computat Biol & Bioinformat Grp, Richland, WA 99352 USA.
[Baxter, Douglas J.] Pacific NW Natl Lab, Mol Sci Comp Facil, Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Kalyanaraman, A (reprint author), Washington State Univ, Sch Elect Engn & Comp Sci, Pullman, WA 99164 USA.
EM ananth@eecs.wsu.edu; william.cannon@pnnl.gov
RI Cannon, William/K-8411-2014
OI Cannon, William/0000-0003-3789-7889
FU National Science Foundation [IIS 0916463]; Department of Energy's Office
of Biological and Environmental Research and Office of Advanced
Scientific Computing Research [57271, 54976]
FX This work was supported by the National Science Foundation (IIS 0916463
to A. K. and W. R. C.) and Department of Energy's Office of Biological
and Environmental Research and Office of Advanced Scientific Computing
Research under contracts (57271 and 54976 to W.R.C.).
NR 3
TC 10
Z9 10
U1 0
U2 14
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 1367-4803
J9 BIOINFORMATICS
JI Bioinformatics
PD NOV 1
PY 2011
VL 27
IS 21
BP 3072
EP 3073
DI 10.1093/bioinformatics/btr523
PG 2
WC Biochemical Research Methods; Biotechnology & Applied Microbiology;
Computer Science, Interdisciplinary Applications; Mathematical &
Computational Biology; Statistics & Probability
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Computer Science; Mathematical & Computational Biology; Mathematics
GA 836GQ
UT WOS:000296099300023
PM 21926122
ER
PT J
AU Nishiguchi, GA
Atallah, G
Bellamacina, C
Burger, MT
Ding, Y
Feucht, PH
Garcia, PD
Han, W
Klivansky, L
Lindvall, M
AF Nishiguchi, Gisele A.
Atallah, Gordana
Bellamacina, Cornelia
Burger, Matthew T.
Ding, Yu
Feucht, Paul H.
Garcia, Pablo D.
Han, Wooseok
Klivansky, Liana
Lindvall, Mika
TI Discovery of novel 3,5-disubstituted indole derivatives as potent
inhibitors of Pim-1, Pim-2, and Pim-3 protein kinases
SO BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
LA English
DT Article
DE Pim-kinase inhibitors; Indole; Kinase selectivity; Oncology
ID PROTOONCOGENE PIM-1; BINDING MODE; CELL; CANCER; PROGRESSION;
TUMORIGENESIS; EXPRESSION; APOPTOSIS; LYMPHOMA; SURVIVAL
AB A series of novel 3,5-disubstituted indole derivatives as potent and selective inhibitors of all three members of the Pim kinase family is described. High throughput screen identified a pan-Pim kinase inhibitor with a promiscuous scaffold. Guided by structure-based drug design, SAR of the series afforded a highly selective indole chemotype that was further developed into a potent set of compounds against Pim-1, 2, and 3 (Pim-1 and Pim-3: IC(50) <= 2 nM and Pim-2: IC(50) <= 100 nM). (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Nishiguchi, Gisele A.; Atallah, Gordana; Bellamacina, Cornelia; Burger, Matthew T.; Ding, Yu; Han, Wooseok; Klivansky, Liana; Lindvall, Mika] Novartis Inst BioMed Res, Global Discovery Chem Oncol & Exploratory Chem, Emeryville, CA 94608 USA.
[Feucht, Paul H.; Garcia, Pablo D.; Klivansky, Liana] Novartis Inst BioMed Res, Oncol Res, Emeryville, CA 94608 USA.
[Klivansky, Liana] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Nishiguchi, GA (reprint author), Novartis Inst BioMed Res, Global Discovery Chem Oncol & Exploratory Chem, Emeryville, CA 94608 USA.
EM gisele.nishiguchi@novartis.com
NR 24
TC 26
Z9 26
U1 0
U2 8
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0960-894X
J9 BIOORG MED CHEM LETT
JI Bioorg. Med. Chem. Lett.
PD NOV 1
PY 2011
VL 21
IS 21
BP 6366
EP 6369
DI 10.1016/j.bmcl.2011.08.105
PG 4
WC Chemistry, Medicinal; Chemistry, Organic
SC Pharmacology & Pharmacy; Chemistry
GA 835HA
UT WOS:000296025900031
PM 21945284
ER
PT J
AU Ge, YX
Fu, CX
Bhandari, H
Bouton, J
Brummer, EC
Wang, ZY
AF Ge, Yaxin
Fu, Chunxiang
Bhandari, Hem
Bouton, Joseph
Brummer, E. Charles
Wang, Zeng-Yu
TI Pollen Viability and Longevity of Switchgrass (Panicum virgatum L.)
SO CROP SCIENCE
LA English
DT Article
ID GENETIC-MODIFICATION; PLANT-REGENERATION; BIOFUEL CROPS; ETHANOL; ENERGY
AB Pollen is essential for seed production and serves as the primary means of gene flow in outcrossing species like switchgrass (Panicum virgatum L.). There is a lack of information on basic pollen biology in switchgrass. This study investigated pollen viability, pollen longevity, and pollen size using different materials, including the tetraploid cultivar Alamo, the octoploid cultivar Cave-in-Rock, and transgenic Alamo plants. Pollen grains were collected from field-grown Alamo and Cave-in-Rock plants, and greenhouse-grown transgenics. Pollen size was in the range of 42.5 to 54.0 mu m; no significant difference was observed in average pollen size between transgenic and control plants. Increasing temperature and ultraviolet-B irradiation negatively affected pollen viability and longevity, while relative humidity had only limited impact. Weather conditions had a large impact on pollen longevity. Under sunny atmospheric conditions, pollen longevity of both cultivars decreased rapidly, with a half-life of <4.9 min and a complete loss of viability in 20 min. Under cloudy atmospheric conditions, the half-life of pollen was more than fivefold longer than under sunny conditions, and it took approximately 150 min to lose viability completely. No difference in pollen viability and longevity was found between transgenic and nontransgenic control plants.
C1 [Ge, Yaxin; Fu, Chunxiang; Bhandari, Hem; Bouton, Joseph; Brummer, E. Charles; Wang, Zeng-Yu] Samuel Roberts Noble Fdn Inc, Forage Improvement Div, Ardmore, OK 73401 USA.
[Brummer, E. Charles; Wang, Zeng-Yu] BioEnergy Sci Ctr, Oak Ridge, TN 37831 USA.
RP Wang, ZY (reprint author), Samuel Roberts Noble Fdn Inc, Forage Improvement Div, 2510 Sam Noble Pkwy, Ardmore, OK 73401 USA.
EM zywang@noble.org
FU National Science Foundation [EPS-0814361]; BioEnergy Science Center;
Samuel Roberts Noble Foundation; Office of Biological and Environmental
Research in the DOE Office of Science
FX This work was supported by the National Science Foundation (Grant
EPS-0814361), the BioEnergy Science Center, and The Samuel Roberts Noble
Foundation. The BioEnergy Science Center is a U.S. Department of Energy
Bioenergy Research Center supported by the Office of Biological and
Environmental Research in the DOE Office of Science.
NR 26
TC 17
Z9 17
U1 1
U2 17
PU CROP SCIENCE SOC AMER
PI MADISON
PA 677 S SEGOE ROAD, MADISON, WI 53711 USA
SN 0011-183X
J9 CROP SCI
JI Crop Sci.
PD NOV
PY 2011
VL 51
IS 6
BP 2698
EP 2705
DI 10.2135/cropsci2011.01.0057
PG 8
WC Agronomy
SC Agriculture
GA 832WB
UT WOS:000295839200040
ER
PT J
AU Choi, D
Xiao, J
Choi, YJ
Hardy, JS
Vijayakumar, M
Bhuvaneswari, MS
Liu, J
Xu, W
Wang, W
Yang, ZG
Graff, GL
Zhang, JG
AF Choi, Daiwon
Xiao, Jie
Choi, Young Joon
Hardy, John S.
Vijayakumar, M.
Bhuvaneswari, M. S.
Liu, Jun
Xu, Wu
Wang, Wei
Yang, Zhenguo
Graff, Gordon L.
Zhang, Ji-Guang
TI Thermal stability and phase transformation of electrochemically
charged/discharged LiMnPO4 cathode for Li-ion batteries
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID RECHARGEABLE LITHIUM BATTERIES; 1ST PRINCIPLES CALCULATIONS; STATIONARY
ENERGY-STORAGE; TG-MS ANALYSIS; ELECTRODE MATERIALS; HIGH-PERFORMANCE;
NANOCOMPOSITE CATHODE; POWER CAPABILITY; LOW-TEMPERATURE; LIXMPO4 M
AB Electrochemically active LiMnPO4 nanoplates at lithiated/delithiated state were subjected to thermal stability and phase transformation evaluations for safety as a cathode material for Li-ion batteries. The phase transformation and oxygen evolution temperature of delithiated MnPO4 were characterized using in situ hot-stage X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), thermogravimetric-differential scanning calorimetry-mass spectroscopy (TGA-DSC-MS), transmission electron microscopy and scanning electron microscopy (SEM)-energy dispersive X-ray analysis (EDAX).
C1 [Choi, Daiwon; Xiao, Jie; Choi, Young Joon; Hardy, John S.; Vijayakumar, M.; Bhuvaneswari, M. S.; Liu, Jun; Xu, Wu; Wang, Wei; Yang, Zhenguo; Graff, Gordon L.; Zhang, Ji-Guang] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Choi, D (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd,POB 999, Richland, WA 99352 USA.
EM daiwon.choi@pnl.gov; jiguang.zhang@pnl.gov
RI Choi, Daiwon/B-6593-2008; Murugesan, Vijayakumar/C-6643-2011; Wang,
Wei/F-4196-2010; Hardy, John/E-1938-2016
OI Murugesan, Vijayakumar/0000-0001-6149-1702; Wang,
Wei/0000-0002-5453-4695; Hardy, John/0000-0002-1699-3196
FU U.S. Department of Energy (DOE); Office of Vehicle Technologies (through
the Batteries for Advanced Transportation Technologies program at
Lawrence Berkeley National Laboratory); Office of Electricity Delivery
and Energy Reliability (OE); DOE's Office of Biological and
Environmental Research; Battelle Memorial Institute for DOE
[DE-AC05-76RL01830]
FX The work is supported by the U.S. Department of Energy (DOE), Office of
Vehicle Technologies (through the Batteries for Advanced Transportation
Technologies program at Lawrence Berkeley National Laboratory) and
Office of Electricity Delivery and Energy Reliability (OE). HRTEM and
XPS investigations were performed in the Environmental Molecular
Sciences Laboratory, a national scientific user facility sponsored by
DOE's Office of Biological and Environmental Research and located at
PNNL is a multi-program laboratory operated by Battelle Memorial
Institute for DOE under Contract DE-AC05-76RL01830.
NR 69
TC 59
Z9 59
U1 11
U2 111
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.
PD NOV
PY 2011
VL 4
IS 11
BP 4560
EP 4566
DI 10.1039/c1ee01501j
PG 7
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 837YE
UT WOS:000296248100019
ER
PT J
AU Chen, ZH
Jansen, AN
Amine, K
AF Chen, Zonghai
Jansen, Andrew N.
Amine, Khalil
TI Novel functionalized electrolyte for MCMB/Li1.156Mn1.844O4 lithium-ion
cells
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID HIGH-POWER APPLICATIONS; GRAPHITE-ELECTRODES; BATTERIES; REDUCTION;
CARBONATE; MECHANISM; ETHYLENE; CATHODE
AB A novel functionalized electrolyte based on Li2B12F9H3 was investigated to improve the electrochemical and safety performance of lithium-ion cells using a lithium manganese oxide spinel positive electrode and a mesocarbon microbeads (MCMB) negative electrode. The test results showed that Li2B12F9H3 can act both as the lithium salt, like the conventional LiPF6, and as the redox shuttle for overcharge protection of lithium-ion cells. In addition, the performance of the lithium-ion cells was dramatically improved by the addition of lithium bis(oxalato) borate and tris(pentafluorophenyl) borane as electrolyte additives. With the help of the proposed additives, MCMB/Li1.156Mn1.844O4 lithium ion cells maintained more than 85% capacity after 1200 cycles.
C1 [Chen, Zonghai; Jansen, Andrew N.; Amine, Khalil] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Chen, ZH (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM Zonghai.chen@anl.gov; amine@anl.gov
RI Chen, Zonghai/K-8745-2013; Amine, Khalil/K-9344-2013; Jansen,
Andrew/Q-5912-2016
OI Jansen, Andrew/0000-0003-3244-7790
FU Air Products and Chemicals Incorporation; U.S. Department of Energy by
UChicago Argonne, LLC [DE-AC02-06CH11357]
FX Research funded by Air Products and Chemicals Incorporation. Argonne
National Laboratory is operated for the U.S. Department of Energy by
UChicago Argonne, LLC, under contract DE-AC02-06CH11357. The authors
thank Dr Bill Casteel for his valuable technical discussion.
NR 17
TC 7
Z9 7
U1 1
U2 41
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.
PD NOV
PY 2011
VL 4
IS 11
BP 4567
EP 4571
DI 10.1039/c1ee01255j
PG 5
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 837YE
UT WOS:000296248100020
ER
PT J
AU Schuman, B
Fisher, S
Borisova, S
Coates, L
Langan, P
Evans, S
AF Schuman, Brock
Fisher, Suzanne
Borisova, Svetlana
Coates, Leighton
Langan, Paul
Evans, Stephen
TI Neutron Structure of Retaining Glycosyltransferase GTA
SO GLYCOBIOLOGY
LA English
DT Meeting Abstract
CT Annual Conference of the Society-for-Glycobiology
CY NOV 09-12, 2011
CL Seattle, WA
SP Soc Glycobiol
C1 [Schuman, Brock; Borisova, Svetlana; Evans, Stephen] Univ Victoria, Victoria, BC, Canada.
[Fisher, Suzanne; Langan, Paul] Los Alamos Natl Lab, Los Alamos, NM USA.
[Coates, Leighton; Langan, Paul] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RI Langan, Paul/N-5237-2015
OI Langan, Paul/0000-0002-0247-3122
NR 0
TC 0
Z9 0
U1 0
U2 4
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 0959-6658
J9 GLYCOBIOLOGY
JI Glycobiology
PD NOV
PY 2011
VL 21
IS 11
MA 56
BP 1469
EP 1469
PG 1
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 835OI
UT WOS:000296045300055
ER
PT J
AU Chandrasekaran, A
Bharadwaj, R
Deng, K
Adams, P
Singh, A
AF Chandrasekaran, Aarthi
Bharadwaj, Rajiv
Deng, Kai
Adams, Paul
Singh, Anup
TI Microscale Analytical Platforms for Screening Carbohydrate-Active
Enzymes
SO GLYCOBIOLOGY
LA English
DT Meeting Abstract
CT Annual Conference of the Society-for-Glycobiology
CY NOV 09-12, 2011
CL Seattle, WA
SP Soc Glycobiol
C1 [Chandrasekaran, Aarthi; Bharadwaj, Rajiv; Deng, Kai; Adams, Paul; Singh, Anup] Joint BioEnergy Inst, Emeryville, CA USA.
[Chandrasekaran, Aarthi; Bharadwaj, Rajiv; Deng, Kai; Singh, Anup] Sandia Natl Labs, Livermore, CA USA.
[Adams, Paul] Lawrence Berkeley Natl Labs, Berkeley, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 1
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 0959-6658
J9 GLYCOBIOLOGY
JI Glycobiology
PD NOV
PY 2011
VL 21
IS 11
MA 71
BP 1474
EP 1474
PG 1
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 835OI
UT WOS:000296045300070
ER
PT J
AU Hansen, SF
McAndrew, R
DeGiovanni, A
McInerney, P
Pereira, JH
Hadi, M
Adams, P
Scheller, HV
AF Hansen, Sara Fasmer
McAndrew, Ryan
DeGiovanni, Andy
McInerney, Peter
Pereira, Jose Henrique
Hadi, Masood
Adams, Paul
Scheller, Henrik Vibe
TI Structural Comparison of Plant Glycosyltransferases
SO GLYCOBIOLOGY
LA English
DT Meeting Abstract
CT Annual Conference of the Society-for-Glycobiology
CY NOV 09-12, 2011
CL Seattle, WA
SP Soc Glycobiol
C1 [Hansen, Sara Fasmer; McAndrew, Ryan; DeGiovanni, Andy; McInerney, Peter; Pereira, Jose Henrique; Hadi, Masood; Adams, Paul; Scheller, Henrik Vibe] LBNL, Joint BioEnergy Inst, Berkeley, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 2
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 0959-6658
J9 GLYCOBIOLOGY
JI Glycobiology
PD NOV
PY 2011
VL 21
IS 11
MA 186
BP 1511
EP 1512
PG 2
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 835OI
UT WOS:000296045300185
ER
PT J
AU Kendall, W
Huang, J
Peterka, T
Latham, R
Ross, R
AF Kendall, Wesley
Huang, Jian
Peterka, Tom
Latham, Robert
Ross, Robert
TI Toward a General I/O Layer for Parallel-Visualization Applications
SO IEEE COMPUTER GRAPHICS AND APPLICATIONS
LA English
DT Editorial Material
C1 [Kendall, Wesley] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA.
[Huang, Jian] Univ Tennessee, Seelab, Knoxville, TN USA.
[Peterka, Tom; Latham, Robert; Ross, Robert] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Kendall, W (reprint author), Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA.
EM kendall@eecs.utk.edu; huangj@eecs.utk.edu; tpeterka@mcs.anl.gov;
robl@mcs.anl.gov; rross@mcs.anl.gov
OI Latham, Rob/0000-0002-5285-6375
NR 6
TC 7
Z9 8
U1 0
U2 0
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 NOV-DEC
PY 2011
VL 31
IS 6
BP 6
EP 10
PG 5
WC Computer Science, Software Engineering
SC Computer Science
GA 835TZ
UT WOS:000296060200003
PM 24808253
ER
PT J
AU Piwko, R
Bradt, M
Camm, E
Ellis, A
Walling, R
O'Malley, M
AF Piwko, Richard
Bradt, Mitch
Camm, Ernst
Ellis, Abraham
Walling, Reigh
O'Malley, Mark
TI A Blast of Activity
SO IEEE POWER & ENERGY MAGAZINE
LA English
DT Article
AB THE GROWTH OF WIND POWER ACTIVITIES WITHIN THE IEEE POWER & ENERGY Society (PES) has been nothing short of phenomenal. Those who thought electric power was a mature industry have learned that it is far from that. Wind power has changed the face of the industry and has instigated fundamental changes in the ways power systems are designed and operated. Wind power blurs the traditional distinction between generating resources, which produce power according to dispatch commands from operators, and system load, which is variable and uncertain but predictable by means of forecasts. A lot has been learned, but as wind power penetration continues to increase, the challenges do too. PES has responded with a greatly increased level of wind-related activities.
C1 [Piwko, Richard; Walling, Reigh] GE Energy Consulting, Schenectady, NY USA.
[Bradt, Mitch] Univ Wisconsin Madison, Madison, WI USA.
[Camm, Ernst] S& C Elect Co, Chicago, IL USA.
[Ellis, Abraham] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[O'Malley, Mark] Univ Coll Dublin, Dublin, Ireland.
RP Piwko, R (reprint author), GE Energy Consulting, Schenectady, NY USA.
NR 4
TC 2
Z9 2
U1 0
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1540-7977
J9 IEEE POWER ENERGY M
JI IEEE Power Energy Mag.
PD NOV-DEC
PY 2011
VL 9
IS 6
BP 26
EP 35
DI 10.1109/MPE.2011.942349
PG 10
WC Engineering, Electrical & Electronic
SC Engineering
GA 836SO
UT WOS:000296131600002
ER
PT J
AU Zavadil, R
Miller, N
Ellis, A
Muljadi, E
Pourbeik, P
Saylors, S
Nelson, R
Irwin, G
Sahni, MS
Muthumuni, D
AF Zavadil, Robert
Miller, Nicholas
Ellis, Abraham
Muljadi, Eduard
Pourbeik, Pouyen
Saylors, Steve
Nelson, Robert
Irwin, Garth
Sahni, Mandhir S.
Muthumuni, Dharshana
TI Models for Change
SO IEEE POWER & ENERGY MAGAZINE
LA English
DT Article
C1 [Zavadil, Robert] EnerNex, Knoxville, TN USA.
[Miller, Nicholas] GE Energy Consulting, Schenectady, NY USA.
[Ellis, Abraham] Sandia Natl Labs, Albuquerque, NM USA.
[Muljadi, Eduard] NREL, Golden, CO USA.
[Pourbeik, Pouyen] Elect Power Res Inst, Charlotte, NC USA.
[Saylors, Steve] Vestas Amer, Portland, OR USA.
[Irwin, Garth] Elect Corp, Winnipeg, MB, Canada.
[Sahni, Mandhir S.] PwrSolutions Inc, Dallas, TX USA.
[Muthumuni, Dharshana] Manitoba HVDC Res Ctr, Winnipeg, MB, Canada.
[Nelson, Robert] Siemens Wind Turbines Amer, Orlando, FL USA.
RP Zavadil, R (reprint author), EnerNex, Knoxville, TN USA.
NR 7
TC 4
Z9 4
U1 0
U2 1
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1540-7977
J9 IEEE POWER ENERGY M
JI IEEE Power Energy Mag.
PD NOV-DEC
PY 2011
VL 9
IS 6
BP 86
EP 96
DI 10.1109/MPE.2011.942388
PG 11
WC Engineering, Electrical & Electronic
SC Engineering
GA 836SO
UT WOS:000296131600007
ER
PT J
AU Morishetti, KK
Russell, SC
Zhao, XN
Robinson, DB
Ren, JH
AF Morishetti, Kiran K.
Russell, Scott C.
Zhao, Xiaoning
Robinson, David B.
Ren, Jianhua
TI Tandem mass spectrometry studies of protonated and alkali metalated
peptoids: Enhanced sequence coverage by metal cation addition
SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
LA English
DT Article
DE Peptoid; Peptide mimics; Alkali metal adducts; Lithium cation;
Fragmentation; Collision induced dissociation
ID RELATIVE CELL-PERMEABILITY; AROMATIC SIDE-CHAINS; GAS-PHASE COMPLEXES;
SECONDARY STRUCTURE; PEPTIDE HYBRIDS; AMINO-ACID; NONBIOLOGICAL POLYMER;
TRYPTIC PEPTIDES; NEUTRAL PEPTIDES; ION ADDUCTS
AB The fragmentation characteristics of five oligo-peptoids were studied under tandem mass spectrometry conditions. The charged peptoids were produced by protonation and alkali metal cation (Li(+), Na(+), K(+), Rb(+), and Cs(+)) addition. The peptoids were ionized by the MALDI process and the resulting ions were fragmented via collision-induced dissociation (CID) experiments. All charged peptoids fragmented predominantly at the amide bonds. Highly abundant and sequence-dependent fragment ions were observed. The fragmentation patterns for the protonated peptoids and the metal cation adducts were strikingly different. All protonated peptoids fragmented by producing predominantly Y-type ions. The bias towards Y-ions was largely due to the greater proton affinity of the secondary amine at the terminal side of the Y-ions. All alkali metalated peptoids fragmented by producing both Y'- and B'-type ions, suggesting a "mobile metal cation" mechanism. For the peptoids with basic side chains, formation of the most abundant ions corresponded to the cleavage of the amide bonds at or near the basic residue. These results suggest that the metal cations are largely coordinated to the side chain of the basic residue. Chelation between the metal cation and the amino groups of the peptoids is an important factor to stabilize the fragment ions. For the peptoid without a basic side chain, the ion intensity was evenly distributed among all medium sized fragment ions. Fragmentations of protonated and alkali metalated peptoids yielded complementary sequential information, which demonstrated the practical utility of using mass spectrometry methods for de novo sequencing of peptoid libraries generated by combinatorial chemistry. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Morishetti, Kiran K.; Zhao, Xiaoning; Ren, Jianhua] Univ Pacific, Dept Chem, Stockton, CA 95211 USA.
[Russell, Scott C.] Calif State Univ Stanislaus, Dept Chem, Turlock, CA 95382 USA.
[Robinson, David B.] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Ren, JH (reprint author), Univ Pacific, Dept Chem, 3601 Pacific Ave, Stockton, CA 95211 USA.
EM jren@pacific.edu
FU National Science Foundation [CHE-0749737]; American Chemical Society;
Sandia National Laboratories [DE-AC04-94AL85000]
FX The authors would like to thank Dr. Bogdan Bogdanov (University of
Louisville, currently at the University of the Pacific) for assisting in
the LTQ-FTICR experiments and Dr. Ronald Zuckermann (The Molecular
Foundry, Lawrence Berkeley National Laboratory) for providing peptoid-E.
J. Ren acknowledges the supports from the National Science Foundation
(CHE-0749737) and the American Chemical Society Peptroleum Research Fund
(Type-G). D. Robinson acknowledges the support from the
Laboratory-Directed Research and Development program at Sandia National
Laboratories (DE-AC04-94AL85000). Peptoid synthesis at the Molecular
Foundry was supported by the Office of Science, Office of Basic Energy
Sciences, US Department of Energy (DE-AC02-05CH11231).
NR 67
TC 11
Z9 12
U1 2
U2 13
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1387-3806
J9 INT J MASS SPECTROM
JI Int. J. Mass Spectrom.
PD NOV 1
PY 2011
VL 308
IS 1
BP 98
EP 108
DI 10.1016/j.ijms.2011.08.003
PG 11
WC Physics, Atomic, Molecular & Chemical; Spectroscopy
SC Physics; Spectroscopy
GA 834YD
UT WOS:000295999500013
ER
PT J
AU Starr, MJ
Segalman, DJ
AF Starr, Michael J.
Segalman, Daniel J.
TI An Empirical Relationship for Extrapolating Sparse Experimental Lap
Joint Data
SO JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
LA English
DT Article
AB Correctly incorporating the influence of mechanical joints in built-up mechanical systems is a critical element for model development for structural dynamics predictions. Quality experimental data are often difficult to obtain and is rarely sufficient to determine fully parameters for relevant mathematical models. On the other hand, fine-mesh finite element (FMFE) modeling facilitates innumerable numerical experiments at modest cost. Detailed FMFE analysis of built-up structures with frictional interfaces reproduces trends among problem parameters found experimentally, but there are qualitative differences. Those differences are currently ascribed to the very approximate nature of the friction model available in most finite element codes. Though numerical simulations are insufficient to produce qualitatively correct behavior of joints, some relations, developed here through observations of a multitude of numerical experiments, suggest interesting relationships among joint properties measured under different loading conditions. These relationships can be generalized into forms consistent with data from physical experiments. One such relationship, developed here, expresses the rate of energy dissipation per cycle within the joint under various combinations of extensional and clamping load in terms of dissipation under other load conditions. The use of this relationship-though not exact-is demonstrated for the purpose of extrapolating a representative set of experimental data to span the range of variability observed from real data.
C1 [Starr, Michael J.; Segalman, Daniel J.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Starr, MJ (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM mjstarr@sandia.gov
FU United States Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]
FX The authors gratefully thank Brian Resor and Danny Gregory for sharing
their extensive library of experimental results and carefully refined
experimental techniques. The authors recognize Sarah Leming for leading
the recent experimental effort and partnering in the measurement of
additional data sets. The authors also thank our colleagues, Clark
Dohrmann and Bruce Kistler, for providing helpful comments and
suggestions. 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 No.
DE-AC04-94AL85000.
NR 16
TC 0
Z9 0
U1 0
U2 0
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0021-8936
J9 J APPL MECH-T ASME
JI J. Appl. Mech.-Trans. ASME
PD NOV
PY 2011
VL 78
IS 6
AR 061002
DI 10.1115/1.4003769
PG 8
WC Mechanics
SC Mechanics
GA 829WH
UT WOS:000295615500002
ER
PT J
AU Liu, JJ
Wolk, CP
AF Liu, Jinjie
Wolk, C. Peter
TI Mutations in Genes patA and patL of Anabaena sp Strain PCC 7120 Result
in Similar Phenotypes, and the Proteins Encoded by Those Genes May
Interact
SO JOURNAL OF BACTERIOLOGY
LA English
DT Article
ID HETEROCYST PATTERN-FORMATION; INTACT YEAST-CELLS; HIGH-EFFICIENCY
TRANSFORMATION; BLUE-GREEN-ALGA; ESCHERICHIA-COLI; SP PCC-7120;
FILAMENTOUS CYANOBACTERIA; CELLULAR-DIFFERENTIATION; NITROGEN-FIXATION;
HETR
AB PatA resembles a response regulator protein with a defective DNA-binding domain, and PatL (All3305) is a pentapeptide repeat protein. A yeast two-hybrid library identified PatL as a protein with which PatA may interact. Heterocysts of patA and patL Anabaena sp. form nearly exclusively terminally in long filaments, further linking the genes.
C1 [Liu, Jinjie; Wolk, C. Peter] Michigan State Univ, MSU DOE Plant Res Lab, E Lansing, MI 48824 USA.
[Wolk, C. Peter] Michigan State Univ, Dept Plant Biol, E Lansing, MI 48824 USA.
RP Wolk, CP (reprint author), Michigan State Univ, MSU DOE Plant Res Lab, E Lansing, MI 48824 USA.
EM wolk@msu.edu
FU Chemical Sciences, Geosciences and Biosciences Division, Office of Basic
Energy Sciences, Office of Science, U.S. Department of Energy
[DE-FG02-91ER20021]; Great Lakes Bioenergy Research Center (DOE BER
Office of Science) [DE-FC02-07ER64494]
FX This work was supported by the Chemical Sciences, Geosciences and
Biosciences Division, Office of Basic Energy Sciences, Office of
Science, U.S. Department of Energy, under grant DE-FG02-91ER20021 and by
the Great Lakes Bioenergy Research Center (DOE BER Office of Science
DE-FC02-07ER64494).
NR 53
TC 6
Z9 6
U1 4
U2 5
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0021-9193
EI 1098-5530
J9 J BACTERIOL
JI J. Bacteriol.
PD NOV
PY 2011
VL 193
IS 21
BP 6070
EP 6074
DI 10.1128/JB.05523-11
PG 5
WC Microbiology
SC Microbiology
GA 836XW
UT WOS:000296153400018
PM 21890704
ER
PT J
AU Suwa, Y
Norton, JM
Bollmann, A
Klotz, MG
Stein, LY
Laanbroek, HJ
Arp, DJ
Goodwin, LA
Chertkov, O
Held, B
Bruce, D
Detter, JC
Detter, JC
Tapia, R
Han, CS
AF Suwa, Yuichi
Norton, Jeanette M.
Bollmann, Annette
Klotz, Martin G.
Stein, Lisa Y.
Laanbroek, Hendrikus J.
Arp, Daniel J.
Goodwin, Lynne A.
Chertkov, Olga
Held, Brittany
Bruce, David
Detter, J. Chris
Detter, Janine C.
Tapia, Roxanne
Han, Cliff S.
TI Genome Sequence of Nitrosomonas sp. Strain AL212, an Ammonia-Oxidizing
Bacterium Sensitive to High Levels of Ammonia (vol 193, pg 5047, 2011)
SO JOURNAL OF BACTERIOLOGY
LA English
DT Correction
C1 [Suwa, Yuichi] Chuo Univ, Tokyo 112, Japan.
[Norton, Jeanette M.] Utah State Univ, Logan, UT 84322 USA.
[Bollmann, Annette] Miami Univ, Oxford, OH 45056 USA.
[Klotz, Martin G.] Univ Louisville, Louisville, KY 40292 USA.
[Stein, Lisa Y.] Univ Alberta, Edmonton, AB, Canada.
[Laanbroek, Hendrikus J.] Netherlands Inst Ecol, Wageningen, Netherlands.
[Arp, Daniel J.] Oregon State Univ, Corvallis, OR 97331 USA.
[Goodwin, Lynne A.; Chertkov, Olga; Held, Brittany; Bruce, David; Detter, J. Chris; Detter, Janine C.; Tapia, Roxanne; Han, Cliff S.] Los Alamos Natl Lab, DOE Joint Genome Inst, Los Alamos, NM USA.
RP Suwa, Y (reprint author), Chuo Univ, Tokyo 112, Japan.
RI Laanbroek, Hendrikus J./C-3830-2008; Norton, Jeanette/G-2633-2011;
Klotz, Martin/D-2091-2009; Stein, Lisa/E-6374-2016
OI Laanbroek, Hendrikus J./0000-0003-2400-3399; Norton,
Jeanette/0000-0002-6596-8691; Klotz, Martin/0000-0002-1783-375X; Stein,
Lisa/0000-0001-5095-5022
NR 1
TC 1
Z9 1
U1 0
U2 12
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0021-9193
J9 J BACTERIOL
JI J. Bacteriol.
PD NOV
PY 2011
VL 193
IS 21
BP 6112
EP 6112
DI 10.1128/JB.06107-11
PG 1
WC Microbiology
SC Microbiology
GA 836XW
UT WOS:000296153400037
ER
PT J
AU Zheng, LL
Gao, YF
Lee, SY
Barabash, RI
Lee, JH
Liaw, PK
AF Zheng, L. L.
Gao, Y. F.
Lee, S. Y.
Barabash, R. I.
Lee, J. H.
Liaw, P. K.
TI Intergranular strain evolution near fatigue crack tips in
polycrystalline metals
SO JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
LA English
DT Article
DE Lattice and intergranular strains; Fatigue crack; Irreversible
hysteretic cohesive interface model; Neutron diffraction; Intergranular
damage
ID COHESIVE ZONE MODEL; PLASTIC-DEFORMATION; GROWTH; DIFFRACTION;
SIMULATIONS; NUCLEATION; FRACTURE; NEUTRON; REFINEMENT; BEHAVIOR
AB The deformation field near a steady fatigue crack includes a plastic zone in front of the crack tip and a plastic wake behind it, and the magnitude, distribution, and history of the residual strain along the crack path depend on the stress multiaxiality, material properties, and history of stress intensity factor and crack growth rate. An in situ, full-field, non-destructive measurement of lattice strain (which relies on the intergranular interactions of the inhomogeneous deformation fields in neighboring grains) by neutron diffraction techniques has been performed for the fatigue test of a Ni-based superalloy compact tension specimen. These microscopic grain level measurements provided unprecedented information on the fatigue growth mechanisms. A two-scale model is developed to predict the lattice strain evolution near fatigue crack tips in polycrystalline materials. An irreversible, hysteretic cohesive interface model is adopted to simulate a steady fatigue crack, which allows us to generate the stress/strain distribution and history near the fatigue crack tip. The continuum deformation history is used as inputs for the micromechanical analysis of lattice strain evolution using the slip-based crystal plasticity model, thus making a mechanistic connection between macro- and micro-strains. Predictions from perfect grain-boundary simulations exhibit the same lattice strain distributions as in neutron diffraction measurements, except for discrepancies near the crack tip within about one-tenth of the plastic zone size. By considering the intergranular damage, which leads to vanishing intergranular strains as damage proceeds, we find a significantly improved agreement between predicted and measured lattice strains inside the fatigue process zone. Consequently, the intergranular damage near fatigue crack tip is concluded to be responsible for fatigue crack growth. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Gao, Y. F.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
[Zheng, L. L.; Gao, Y. F.; Lee, S. Y.; Barabash, R. I.; Lee, J. H.; Liaw, P. K.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Barabash, R. I.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Gao, YF (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
EM ygao7@utk.edu
RI Gao, Yanfei/F-9034-2010
OI Gao, Yanfei/0000-0003-2082-857X
FU NSF [CMMI 0800168]; DMR [0232320]; Joint Institute for Neutron Sciences
at the University of Tennessee; Materials Sciences and Engineering
Division, Office of Basic Sciences, U.S. Department of Energy
FX This work was supported by NSF CMMI 0800168 (LLZ and YFG), DMR 0232320
(SYL and PKL), the Joint Institute for Neutron Sciences at the
University of Tennessee (LLZ and YFG), and Materials Sciences and
Engineering Division, Office of Basic Sciences, U.S. Department of
Energy (YFG and RIB). The authors also acknowledge Dr. E.W. Huang's help
on neutron diffraction measurements.
NR 42
TC 20
Z9 20
U1 3
U2 32
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0022-5096
EI 1873-4782
J9 J MECH PHYS SOLIDS
JI J. Mech. Phys. Solids
PD NOV
PY 2011
VL 59
IS 11
BP 2307
EP 2322
DI 10.1016/j.jmps.2011.08.001
PG 16
WC Materials Science, Multidisciplinary; Mechanics; Physics, Condensed
Matter
SC Materials Science; Mechanics; Physics
GA 837DH
UT WOS:000296170800004
ER
PT J
AU Li, CJ
Bankhead, A
Eisfeld, AJ
Hatta, Y
Jeng, S
Chang, JH
Aicher, LD
Proll, S
Ellis, AL
Law, GL
Waters, KM
Neumann, G
Katze, MG
McWeeney, S
Kawaoka, Y
AF Li, Chengjun
Bankhead, Armand, III
Eisfeld, Amie J.
Hatta, Yasuko
Jeng, Sophia
Chang, Jean H.
Aicher, Lauri D.
Proll, Sean
Ellis, Amy L.
Law, G. Lynn
Waters, Katrina M.
Neumann, Gabriele
Katze, Michael G.
McWeeney, Shannon
Kawaoka, Yoshihiro
TI Host Regulatory Network Response to Infection with Highly Pathogenic
H5N1 Avian Influenza Virus
SO JOURNAL OF VIROLOGY
LA English
DT Article
ID BRONCHIAL EPITHELIAL-CELLS; INNATE IMMUNE-RESPONSES; PRIMARY HUMAN
ALVEOLAR; GENE-EXPRESSION; ANTIVIRAL CYTOKINES; H1N1 VIRUS; BIOLOGY;
BIOCONDUCTOR; INFLAMMATION; REPLICATION
AB During the last decade, more than half of humans infected with highly pathogenic avian influenza (HPAI) H5N1 viruses have died, yet virus-induced host signaling has yet to be clearly elucidated. Airway epithelia are known to produce inflammatory mediators that contribute to HPAI H5N1-mediated pathogenicity, but a comprehensive analysis of the host response in this cell type is lacking. Here, we leveraged a system approach to identify and statistically validate signaling subnetworks that define the dynamic transcriptional response of human bronchial epithelial cells after infection with influenza A/Vietnam/1203/2004 (H5N1, VN1203). Importantly, we validated a subset of transcripts from one subnetwork in both Calu-3 cells and mice. A more detailed examination of two subnetworks involved in the immune response and keratinization processes revealed potential novel mediators of HPAI H5N1 pathogenesis and host response signaling. Finally, we show how these results compare to those for a less virulent strain of influenza virus. Using emergent network properties, we provide fresh insight into the host response to HPAI H5N1 virus infection and identify novel avenues for perturbation studies and potential therapeutic interventions for fatal HPAI H5N1 disease.
C1 [Li, Chengjun; Eisfeld, Amie J.; Hatta, Yasuko; Ellis, Amy L.; Neumann, Gabriele; Kawaoka, Yoshihiro] Univ Wisconsin, Dept Pathobiol Sci, Influenza Res Inst, Sch Vet Med, Madison, WI 53711 USA.
[Bankhead, Armand, III; McWeeney, Shannon] Oregon Hlth & Sci Univ, Div Bioinformat & Computat Biol, Dept Med Informat & Clin Epidemiol, Portland, OR 97201 USA.
[Chang, Jean H.; Aicher, Lauri D.; Proll, Sean; Law, G. Lynn; Katze, Michael G.] Univ Washington, Sch Med, Dept Microbiol, Seattle, WA 98195 USA.
[Jeng, Sophia] Oregon Hlth & Sci Univ, Oregon Clin & Translat Res Inst, Portland, OR 97201 USA.
[Waters, Katrina M.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Katze, Michael G.] Univ Washington, Washington Natl Primate Res Ctr, Seattle, WA 98195 USA.
[McWeeney, Shannon] Oregon Hlth & Sci Univ, Div Biostat, Dept Publ Hlth & Prevent Med, Portland, OR 97201 USA.
[McWeeney, Shannon] Oregon Hlth & Sci Univ, Knight Canc Inst, Portland, OR 97201 USA.
[Kawaoka, Yoshihiro] Univ Tokyo, Inst Med Sci, Div Virol, Dept Microbiol & Immunol, Tokyo 1088639, Japan.
[Kawaoka, Yoshihiro] Univ Tokyo, Inst Med Sci, Dept Special Pathogens, Int Res Ctr Infect Dis, Tokyo 1088639, Japan.
[Kawaoka, Yoshihiro] ERATO Infect Induced Host Responses Project, Kawaguchi, Saitama 3320012, Japan.
RP Kawaoka, Y (reprint author), Univ Wisconsin, Dept Pathobiol Sci, Influenza Res Inst, Sch Vet Med, 575 Sci Dr, Madison, WI 53711 USA.
EM mcweeney@ohsu.edu; kawaokay@vetmed.wisc.edu
FU National Institute of Allergy and Infectious Diseases, NIH, Department
of Health and Human Services [HHSN272200800060C]; National Institute of
Allergy and Infectious Diseases Public Health Service
FX This work was made possible by funding from the National Institute of
Allergy and Infectious Diseases, NIH, Department of Health and Human
Services contract HHSN272200800060C, and by National Institute of
Allergy and Infectious Diseases Public Health Service research grants.
NR 56
TC 21
Z9 21
U1 1
U2 4
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0022-538X
J9 J VIROL
JI J. Virol.
PD NOV
PY 2011
VL 85
IS 21
BP 10955
EP 10967
DI 10.1128/JVI.05792-11
PG 13
WC Virology
SC Virology
GA 837ZL
UT WOS:000296254400003
PM 21865398
ER
PT J
AU Liu, PH
Overman, RG
Yates, NL
Alam, SM
Vandergrift, N
Chen, Y
Graw, F
Freel, SA
Kappes, JC
Ochsenbauer, C
Montefiori, DC
Gao, F
Perelson, AS
Cohen, MS
Haynes, BF
Tomaras, GD
AF Liu, Pinghuang
Overman, R. Glenn
Yates, Nicole L.
Alam, S. Munir
Vandergrift, Nathan
Chen, Yue
Graw, Frederik
Freel, Stephanie A.
Kappes, John C.
Ochsenbauer, Christina
Montefiori, David C.
Gao, Feng
Perelson, Alan S.
Cohen, Myron S.
Haynes, Barton F.
Tomaras, Georgia D.
TI Dynamic Antibody Specificities and Virion Concentrations in Circulating
Immune Complexes in Acute to Chronic HIV-1 Infection
SO JOURNAL OF VIROLOGY
LA English
DT Article
ID IMMUNODEFICIENCY-VIRUS TYPE-1; MEMBRANE PROXIMAL REGION; VACCINE DESIGN;
T-CELLS; INDUCTION; ENVELOPE; BINDING; REPLICATION; RESPONSES; EPITOPES
AB Understanding the interactions between human immunodeficiency virus type 1 (HIV-1) virions and antibodies (Ab) produced during acute HIV-1 infection (AHI) is critical for defining antibody antiviral capabilities. Antibodies that bind virions may prevent transmission by neutralization of virus or mechanically prevent HIV-1 migration through mucosal layers. In this study, we quantified circulating HIV-1 virion-immune complexes (ICs), present in approximately 90% of AHI subjects, and compared the levels and antibody specificity to those in chronic infection. Circulating HIV-1 virions coated with IgG (immune complexes) were in significantly lower levels relative to the viral load in acute infection than in chronic HIV-1 infection. The specificities of the antibodies in the immune complexes differed between acute and chronic infection (anti-gp41 Ab in acute infection and anti-gp120 in chronic infection), potentially suggesting different roles in immunopathogenesis for complexes arising at different stages of infection. We also determined the ability of circulating IgG from AHI to bind infectious versus noninfectious virions. Similar to a nonneutralizing anti-gp41 monoclonal antibody (MAb), purified plasma IgG from acute HIV-1 subjects bound both infectious and noninfectious virions. This was in contrast to the neutralizing antibody 2G12 MAb that bound predominantly infectious virions. Moreover, the initial antibody response captured acute HIV-1 virions without selection for different HIV-1 envelope sequences. In total, this study demonstrates that the composition of immune complexes are dynamic over the course of HIV-1 infection and are comprised initially of antibodies that nonselectively opsonize both infectious and noninfectious virions, likely contributing to the lack of efficacy of the antibody response during acute infection.
C1 [Tomaras, Georgia D.] Duke Univ, Med Ctr, Duke Human Vaccine Inst, Durham, NC 27710 USA.
[Liu, Pinghuang; Overman, R. Glenn; Freel, Stephanie A.; Montefiori, David C.; Tomaras, Georgia D.] Duke Univ, Dept Surg, Durham, NC 27710 USA.
[Yates, Nicole L.; Alam, S. Munir; Vandergrift, Nathan; Chen, Yue; Gao, Feng; Haynes, Barton F.] Duke Univ, Dept Med, Durham, NC 27710 USA.
[Haynes, Barton F.; Tomaras, Georgia D.] Duke Univ, Dept Immunol, Durham, NC 27710 USA.
[Tomaras, Georgia D.] Duke Univ, Dept Mol Genet & Microbiol, Durham, NC 27710 USA.
[Kappes, John C.; Ochsenbauer, Christina] Univ Alabama, Dept Med, Birmingham, AL 35294 USA.
[Graw, Frederik; Perelson, Alan S.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Cohen, Myron S.] Univ N Carolina, Sch Med, Chapel Hill, NC USA.
RP Tomaras, GD (reprint author), Duke Univ, Med Ctr, Duke Human Vaccine Inst, Rm 4079 MSRBII,2 Genome Court, Durham, NC 27710 USA.
EM gdt@duke.edu
RI Chen, Yue/A-1866-2012; Tomaras, Georgia/J-5041-2016
FU National Institutes of Health Center [U01 AI067854]; Kelly Soderberg
FX This work was supported by the National Institutes of Health
(NIH/NIAID/DAIDS) Center for HIV/AIDS Vaccine Immunology Grant (U01
AI067854). The funders had no role in study design, data collection and
analysis, decision to publish, or preparation of the manuscript.
NR 47
TC 29
Z9 30
U1 0
U2 0
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0022-538X
J9 J VIROL
JI J. Virol.
PD NOV
PY 2011
VL 85
IS 21
BP 11196
EP 11207
DI 10.1128/JVI.05601-11
PG 12
WC Virology
SC Virology
GA 837ZL
UT WOS:000296254400026
PM 21865397
ER
PT J
AU Gan, YX
Zeng, XW
Su, LS
Yang, L
Gan, BJ
Zhang, LH
AF Gan, Yong X.
Zeng, Xianwu
Su, Lusheng
Yang, Lu
Gan, Bo J.
Zhang, Lihua
TI Synthesis and enhanced light absorption of alumina matrix nanocomposites
containing multilayer oxide nanorods and silver nanoparticles
SO MATERIALS RESEARCH BULLETIN
LA English
DT Article
DE Oxides; Metals; Chemical synthesis; Electron microscopy; Optical
properties
ID NANOTUBE ARRAYS; LIQUID-PHASE; NANOWIRES; FILMS; GOLD; PLASMONICS
AB In this paper, multilayer oxide nanorods were deposited in the nanopores of anodic aluminum oxide (AAO) via solution infiltration followed by heat treatment. The nanorods have a core-shell structure. First, the shell (nanotube) with the thickness of about 40 nm was made of TiO(2) through the hydrolysis of (NH(4))(2)TiF(6). Second, silver nanoparticles with the diameter of about 3 nm were added into the TiO(2) layer through thermal decomposition of AgNO(3) at elevated temperatures. Then, cylindrical cores (nanorods) of CoO and ZnO with 200 nm diameter were prepared, respectively. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to characterize the structure and composition of the nanorods. UV-vis light absorption measurements in the wavelength range from 350 to 1000 nm were performed to study the effect of nanorod and nanoparticle addition on the light absorption property of the alumina nanocomposites. It is found that CoO nanorods increase the light absorption of the alumina matrix composite in the wavelength range from 500 nm to 800 nm, but the TiO(2) shell does not increase the light absorption much. The ZnO nanorods do not change the light absorption either. However, the addition of silver nanoparticles significantly enhances light absorption of both AAO/TiO(2)/Ag/CoO and AAO/TiO(2)/Ag/ZnO nanocomposites. This increase in the visible light absorption reveals that there exists surface plasmon around the fine silver nanoparticles in the nanorods. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Gan, Yong X.; Zeng, Xianwu; Su, Lusheng; Yang, Lu] Univ Toledo, Coll Engn, Dept Mech Ind & Mfg Engn, Toledo, OH 43606 USA.
[Gan, Bo J.] Ottawa Hills High Sch, Toledo, OH 43606 USA.
[Zhang, Lihua] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Gan, YX (reprint author), Univ Toledo, Coll Engn, Dept Mech Ind & Mfg Engn, Toledo, OH 43606 USA.
EM yong.gan@utoledo.edu
RI Zhang, Lihua/F-4502-2014
FU University of Toledo; U.S. Department of Energy, Office of Basic Energy
Sciences [DE-AC02-98CH10886]
FX This work is supported by the research start-up fund, the Faculty Summer
Research Fellowship and the Doctoral Instrumentation Graduate Fellowship
from The University of Toledo. The transmission electron microscopic
(TEM) research carried out at the Center for Functional Nanomaterials,
Brookhaven National Laboratory, is supported by the U.S. Department of
Energy, Office of Basic Energy Sciences, under Contract No.
DE-AC02-98CH10886.
NR 35
TC 6
Z9 6
U1 2
U2 35
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0025-5408
J9 MATER RES BULL
JI Mater. Res. Bull.
PD NOV
PY 2011
VL 46
IS 11
BP 1828
EP 1836
DI 10.1016/j.materresbull.2011.07.050
PG 9
WC Materials Science, Multidisciplinary
SC Materials Science
GA 835LU
UT WOS:000296038700014
ER
PT J
AU Hada, M
Huff, JL
Patel, ZS
Kawata, T
Pluth, JM
George, KA
Cucinotta, FA
AF Hada, Megumi
Huff, Janice L.
Patel, Zarana S.
Kawata, Tetsuya
Pluth, Janice M.
George, Kerry A.
Cucinotta, Francis A.
TI AT cells are not radiosensitive for simple chromosomal exchanges at low
dose
SO MUTATION RESEARCH-FUNDAMENTAL AND MOLECULAR MECHANISMS OF MUTAGENESIS
LA English
DT Article
DE AT; NBS; Chromosomal aberrations; Radiation sensitivity; DSB repair
ID DOUBLE-STRAND BREAKS; IN-SITU HYBRIDIZATION; ATAXIA-TELANGIECTASIA
FIBROBLASTS; POTENTIALLY LETHAL DAMAGE; DNA-DAMAGE; RATE IRRADIATION;
GAMMA-H2AX FOCI; ATM ACTIVATION; REPAIR; ABERRATIONS
AB Cells deficient in ATM (product of the gene that is mutated in ataxia telangiectasia patients) or NBS (product of the gene mutated in the Nijmegen breakage syndrome) show increased yields of both simple and complex chromosomal aberrations after high doses (>0.5 Gy) of ionizing radiation (X-rays or gamma-rays), however less is known on how these cells respond at low dose. Previously we had shown that the increased chromosome aberrations in ATM and NBS defective lines was due to a significantly larger quadratic dose-response term compared to normal fibroblasts for both simple and complex exchanges. The linear dose-response term for simple exchanges was significantly higher in NBS cells compared to wild type cells, but not for AT cells. However, AT cells have a high background level of exchanges compared to wild type or NBS cells that confounds the understanding of low dose responses. To understand the sensitivity differences for high to low doses, chromosomal aberration analysis was first performed at low dose-rates (0.5 Gy/d), and results provided further evidence for the lack of sensitivity for exchanges in AT cells below doses of 1 Gy. Normal lung fibroblast cells treated with KU-55933, a specific ATM kinase inhibitor, showed increased numbers of exchanges at a dose of 1 Gy and higher, but were similar to wild type cells at 0.5 Gy or below. These results were confirmed using siRNA knockdown of ATM. The present study provides evidence that the increased radiation sensitivity of AT cells for chromosomal exchanges found at high dose does not occur at low dose. Published by Elsevier B.V.
C1 [Cucinotta, Francis A.] NASA, Lyndon B Johnson Space Ctr, Houston, TX 77058 USA.
[Hada, Megumi; Huff, Janice L.; Patel, Zarana S.] USRA Div Life Sci, Houston, TX 77058 USA.
[Kawata, Tetsuya] Keio Univ, Sch Med, Dept Radiol, Tokyo, Japan.
[Pluth, Janice M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
[George, Kerry A.] Wyle, Houston, TX 77058 USA.
RP Cucinotta, FA (reprint author), NASA, Lyndon B Johnson Space Ctr, 2101 NASA Pkwy, Houston, TX 77058 USA.
EM Francis.A.Cucinotta@nasa.gov
FU US DOE [DE-A103-05ER64088]; NASA
FX We gratefully acknowledge partial financial support provided by the US
DOE (DE-A103-05ER64088), and the NASA Space Radiation Program.
NR 37
TC 6
Z9 6
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0027-5107
J9 MUTAT RES-FUND MOL M
JI Mutat. Res.-Fundam. Mol. Mech. Mutagen.
PD NOV 1
PY 2011
VL 716
IS 1-2
BP 76
EP 83
DI 10.1016/j.mrfmmm.2011.08.006
PG 8
WC Biotechnology & Applied Microbiology; Genetics & Heredity; Toxicology
SC Biotechnology & Applied Microbiology; Genetics & Heredity; Toxicology
GA 837FW
UT WOS:000296177500010
PM 21889946
ER
PT J
AU Pellemoine, F
Mittig, W
Avilov, M
Ippel, D
Lenz, J
Oliva, J
Silverman, I
Youchison, D
Xu, T
AF Pellemoine, F.
Mittig, W.
Avilov, M.
Ippel, D.
Lenz, J.
Oliva, J.
Silverman, I.
Youchison, D.
Xu, T.
TI Thermo-mechanical behaviour of a single slice test device for the FRIB
high power target
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 25th World Conference of the
International-Nuclear-Target-Development-Society (INTDS)
CY SEP 12-17, 2010
CL TRIUMF, Vancouver, CANADA
SP Int Nucl Target Dev Soc (INTDS), Adv Appl Phys Solut (AAPS), Beamtech Optron Co, D-Pace Inc, MDS Nordion Inc, UHV Technol Inc
HO TRIUMF
DE Electron beam heating; Graphite; High intensity beam; Thermal behaviour;
High power target
AB One of the major challenges of the FRIB project (Facility for Rare Isotope Beams) at Michigan State University is the design and integration of the production target to produce rare isotope beams via fragmentation reaction. In the most extreme case, a 400 kW uranium beam of 200 MeV/u will be focused in a 1 mm diameter spot, leading to a power density of 60 MW/cm(3) for a C target. Up to 200 kW may be dissipated in the target.
A rotating solid carbon disk concept has been selected as the target design approach for all primary beams up to uranium to provide high-power operation. A high rotational speed is necessary to compensate for the high power density. A multi-slice approach allows the evacuation of the large amount of heat deposited by the increase of the radiating area. In the present design study, the multislice target device has a diameter of about 30 cm and rotates at about 5000 RPM (revolutions per minute). The first step of the R&D strategy consists in the development and test of a 20 kW single-slice target prototype. This single disk device is designed to accept the same fraction of power as each disk of the final multi-slice target. Critical information on thermal-mechanical properties can be obtained thus at a lower power level than the one of the full device. Different carbon materials were tested. An electron beam of similar to 20 key was used for the thermal tests. Simulations were performed using the ANSYS code for the thermo-mechanical behaviour of the target, the resulting deformation and the stress profiles of heated graphite disks. Results of the simulations were compared with experimental data. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Pellemoine, F.; Mittig, W.; Avilov, M.; Ippel, D.; Lenz, J.; Oliva, J.; Xu, T.] Michigan State Univ, NSCL Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
[Pellemoine, F.] GANIL Grand Accelerateur Natl Ions Lourds, Caen, France.
[Silverman, I.] SOREQ Nucl Res Ctr, Yavne, Israel.
[Youchison, D.] Sandia Natl Labs, Fus Technol Dept, Albuquerque, NM 87185 USA.
RP Pellemoine, F (reprint author), Michigan State Univ, NSCL Natl Superconducting Cyclotron Lab, MSU NSCL 1, E Lansing, MI 48824 USA.
EM pellemoi@frib.msu.edu
OI Youchison, Dennis/0000-0002-7366-1710
NR 11
TC 11
Z9 11
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2011
VL 655
IS 1
BP 3
EP 9
DI 10.1016/j.nima.2011.06.010
PG 7
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 834JW
UT WOS:000295956600002
ER
PT J
AU Steski, D
Stolarz, A
Zeisler, S
AF Steski, Dannie
Stolarz, Anna
Zeisler, Stefan
TI RECENT DEVELOPMENTS IN NUCLEAR TARGET PREPARATION AND STRIPPER FOIL
TECHNOLOGY Proceedings of the 25th World Conference of the International
Nuclear Target Development Society, TRIUMF, Vancouver, Canada, 12-17
September 2010 Preface
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Editorial Material
C1 [Steski, Dannie] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Stolarz, Anna] Warsaw Univ, HIL, Warsaw, Poland.
[Zeisler, Stefan] TRIUMF, Vancouver, BC, Canada.
RP Steski, D (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM steski@bnl.gov; anna@slcj.uw.edu.pl; zeisler@triumf.ca
NR 0
TC 0
Z9 0
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2011
VL 655
IS 1
BP V
EP V
DI 10.1016/j.nima.2011.08.023
PG 1
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 834JW
UT WOS:000295956600001
ER
PT J
AU Greene, JP
Savard, G
Pardo, RC
Baker, SI
Levand, AF
Zabransky, BJ
AF Greene, John P.
Savard, Guy
Pardo, Richard C.
Baker, Samuel I.
Levand, Anthony F., Jr.
Zabransky, Bruce J.
TI Degrader foils for the CARIBU project
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 25th World Conference of the
International-Nuclear-Target-Development-Society (INTDS)
CY SEP 12-17, 2010
CL TRIUMF, Vancouver, CANADA
SP Int Nucl Target Dev Soc (INTDS), Adv Appl Phys Solut (AAPS), Beamtech Optron Co, D-Pace Inc, MDS Nordion Inc, UHV Technol Inc
HO TRIUMF
DE Aluminum; Californium; Radioactive source; Rolling
ID GAS CATCHERS
AB The Californium Rare Ion Breeder Upgrade (CARIBU) project was conceived to provide neutron rich beams originating from the 3% fission decay branch of a (252)Cf source to be accelerated by the Argonne Tandem Linear Accelerator System (ATLAS). This 1Ci (252)Cf source will be housed in a movable shielded cask, from which it can be directly transferred into a large helium gas stopper cell. Within the gas stopper. the CARIBU (252)Cf source is positioned behind an aluminum degrader foil where the radioactive recoils of interest lose most of their energy before being stopped in the helium gas. To stop recoils over the full fission mass range effectively, three degraders of increasing thickness are required, one to cover the light fission peak and two for the isotopes in the heavy fission peak.
The geometry of the source within the gas cell would ideally require a hemispherically shaped degrader foil for uniform energy loss of the fission products. The fabrication of a thin foil of such a shape proved to be exceedingly difficult and, therefore, a compromise "top hat" arrangement was designed. In addition, the ultra-high vacuum (UHV) environment necessary for the gas cell to function properly prevented the use of any epoxy due to vacuum outgassing. Handling, assembling of the foils and mounting must be done under clean room conditions. Details of early attempts at producing these foils as well as handling and mounting will be discussed. Published by Elsevier B.V.
C1 [Greene, John P.; Savard, Guy; Pardo, Richard C.; Baker, Samuel I.; Levand, Anthony F., Jr.; Zabransky, Bruce J.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Greene, JP (reprint author), Argonne Natl Lab, Div Phys, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM greene@anl.gov
NR 8
TC 0
Z9 0
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2011
VL 655
IS 1
BP 21
EP 23
DI 10.1016/j.nima.2011.06.013
PG 3
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 834JW
UT WOS:000295956600005
ER
PT J
AU Ma, WJ
Liechtenstein, VK
Szerypo, J
Jung, D
Hilz, P
Hegelich, BM
Maier, HJ
Schreiber, J
Habs, D
AF Ma, Wenjun
Liechtenstein, V. Kh
Szerypo, J.
Jung, D.
Hilz, P.
Hegelich, B. M.
Maier, H. J.
Schreiber, J.
Habs, D.
TI Preparation of self-supporting diamond-like carbon nanofoils with
thickness less than 5 nm for laser-driven ion acceleration
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 25th World Conference of the
International-Nuclear-Target-Development-Society (INTDS)
CY SEP 12-17, 2010
CL TRIUMF, Vancouver, CANADA
SP Int Nucl Target Dev Soc (INTDS), Adv Appl Phys Solut (AAPS), Beamtech Optron Co, D-Pace Inc, MDS Nordion Inc, UHV Technol Inc
HO TRIUMF
DE Diamond-like carbon foils; Self-supporting foils; Laser acceleration
ID OF-FLIGHT SPECTROMETERS; AMORPHOUS-CARBON; TANDEM ACCELERATORS;
ELECTRON-BEAMS; FOILS; TARGETS; FILMS; PULSES
AB Ultrathin (<5 nm) self-supporting diamond-like carbon (DLC) foils are prepared by filtered cathodic vacuum arc (FCVA) deposition method as targets for laser-driven ion acceleration. The thickness and the morphology of these foils are characterized by atomic force microscope (AFM) and scanning electron microscope (SEM). (C) 2011 Elsevier B.V. All rights reserved.
C1 [Ma, Wenjun; Szerypo, J.; Jung, D.; Hilz, P.; Maier, H. J.; Habs, D.] Ludwig Maximilians Univ Munchen, Fac Phys, D-85748 Garching, Germany.
[Ma, Wenjun; Schreiber, J.; Habs, D.] Max Planck Inst Quantumopt, D-85748 Garching, Germany.
[Liechtenstein, V. Kh] RRC Kurchatov Inst, Moscow 123182, Russia.
[Szerypo, J.; Maier, H. J.] MLL, D-85748 Garching, Germany.
[Jung, D.; Hegelich, B. M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Habs, D (reprint author), Ludwig Maximilians Univ Munchen, Fac Phys, Coulombwall 1, D-85748 Garching, Germany.
EM Dietrich.Habs@Physik.Uni-Muenchen.de
RI Hegelich, Bjorn/J-2689-2013; Ma, Wenjun/D-9176-2012
OI Ma, Wenjun/0000-0001-8217-8301
NR 34
TC 14
Z9 15
U1 2
U2 21
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2011
VL 655
IS 1
BP 53
EP 56
DI 10.1016/j.nima.2011.06.019
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 834JW
UT WOS:000295956600011
ER
PT J
AU Henderson, RA
Gostic, JM
Burke, JT
Fisher, SE
Wu, CY
AF Henderson, R. A.
Gostic, J. M.
Burke, J. T.
Fisher, S. E.
Wu, C. Y.
TI Electrodeposition of U and Pu on thin C and Ti substrates
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 25th World Conference of the
International-Nuclear-Target-Development-Society (INTDS)
CY SEP 12-17, 2010
CL TRIUMF, Vancouver, CANADA
SP Int Nucl Target Dev Soc (INTDS), Adv Appl Phys Solut (AAPS), Beamtech Optron Co, D-Pace Inc, MDS Nordion Inc, UHV Technol Inc
HO TRIUMF
DE Uranium; Plutonium; Carbon; Titanium; Target; Electrodeposition
ID ACTINIDE TARGETS
AB Preparation of Pu and U targets on thin natural C (100 mu g/cm(2)) and Ti (2 and 3 mu m) substrates is described. The actinide material of interest was first purified using ion exchange chromatography to remove any matrix contaminants or decay products present in the parent stock solution. The actinide solution was prepared in 0.05 M HNO(3) with a final aliquot volume not exceeding 100 mu L for the deposition procedure. The electroplating cells were developed in-house and were primarily made of Teflon. The source material deposited ranged from 125 to 400 mu g/cm(2). It was determined that multiple layers of U and Pu were required to produce thicker targets on Ti. Plating efficiency was greatly affected by the cell volume, solution aliquot size, pre-treatment of the foils, solution mixing during plating, and the fit of the electrode contact with the target substrate. The final procedure used for deposition is described in detail. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Henderson, R. A.; Gostic, J. M.; Burke, J. T.; Fisher, S. E.; Wu, C. Y.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Henderson, RA (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave,L-236, Livermore, CA 94550 USA.
EM henderson55@llnl.gov
RI Burke, Jason/I-4580-2012
NR 5
TC 13
Z9 13
U1 2
U2 13
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2011
VL 655
IS 1
BP 66
EP 71
DI 10.1016/j.nima.2011.06.023
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 834JW
UT WOS:000295956600015
ER
PT J
AU Van Dyke, MV
Martyny, JW
Mroz, MM
Silveira, LJ
Strand, M
Cragle, DL
Tankersley, WG
Wells, SM
Newman, LS
Maier, LA
AF Van Dyke, Michael V.
Martyny, John W.
Mroz, Margaret M.
Silveira, Lori J.
Strand, Matt
Cragle, Donna L.
Tankersley, William G.
Wells, Susan M.
Newman, Lee S.
Maier, Lisa A.
TI Exposure and genetics increase risk of beryllium sensitisation and
chronic beryllium disease in the nuclear weapons industry
SO OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
LA English
DT Article
ID HUMAN-LEUKOCYTE ANTIGEN; MHC-CLASS-II; ROCKY FLATS; SUSCEPTIBILITY;
FACILITY; WORKERS; PLANT; PREVALENCE; ALLELES; MARKERS
AB Objectives Beryllium sensitisation (BeS) and chronic beryllium disease (CBD) are caused by exposure to beryllium with susceptibility affected by at least one well-studied genetic host factor, a glutamic acid residue at position 69 (E69) of the HLA-DP beta chain (DP beta E69). However, the nature of the relationship between exposure and carriage of the DP beta E69 genotype has not been well studied. The goal of this study was to determine the relationship between DP beta E69 and exposure in BeS and CBD.
Methods Current and former workers (n=181) from a US nuclear weapons production facility, the Y-12 National Security Complex (Oak Ridge, Tennessee, USA), were enrolled in a case-control study including 35 individuals with BeS and 19 with CBD. HLA-DPB1 genotypes were determined by PCR-SSP. Beryllium exposures were assessed through worker interviews and industrial hygiene assessment of work tasks.
Results After removing the confounding effect of potential beryllium exposure at another facility, multivariate models showed a sixfold (OR 6.06, 95% CI 1.96 to 18.7) increased odds for BeS and CBD combined among DP beta E69 carriers and a fourfold (OR 3.98, 95% CI 1.43 to 11.0) increased odds for those exposed over an assigned lifetime-weighted average exposure of 0.1 mu g/m(3). Those with both risk factors had higher increased odds (OR 24.1, 95% CI 4.77 to 122).
Conclusion DP beta E69 carriage and high exposure to beryllium appear to contribute individually to the development of BeS and CBD. Among workers at a beryllium-using facility, the magnitude of risk associated with either elevated beryllium exposure or carriage of DP beta E69 alone appears to be similar.
C1 [Van Dyke, Michael V.; Martyny, John W.; Mroz, Margaret M.; Silveira, Lori J.; Strand, Matt; Maier, Lisa A.] Natl Jewish Hlth, Div Environm & Occupat Hlth Sci, Hollis Lab, Denver, CO 80206 USA.
[Van Dyke, Michael V.; Martyny, John W.] Colorado State Univ, Dept Environm & Radiol Hlth Sci, Ft Collins, CO 80523 USA.
[Martyny, John W.; Newman, Lee S.; Maier, Lisa A.] Univ Colorado, Denver Sch Med, Denver, CO 80202 USA.
[Martyny, John W.; Newman, Lee S.; Maier, Lisa A.] Colorado Sch Publ Hlth, Denver, CO USA.
[Cragle, Donna L.; Tankersley, William G.; Wells, Susan M.] Oak Ridge Associated Univ, Oak Ridge, TN USA.
RP Van Dyke, MV (reprint author), Natl Jewish Hlth, Div Environm & Occupat Hlth Sci, Hollis Lab, 1400 Jackson St, Denver, CO 80206 USA.
EM vandykem@njhealth.org
FU NIEHS/NIH [P01 ES011810]; NCRR/NIH [1 UL1 RR025780]
FX This study was supported by grant P01 ES011810 from NIEHS/NIH and 1 UL1
RR025780 from NCRR/NIH.
NR 39
TC 13
Z9 13
U1 0
U2 5
PU B M J PUBLISHING GROUP
PI LONDON
PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON WC1H 9JR, ENGLAND
SN 1351-0711
J9 OCCUP ENVIRON MED
JI Occup. Environ. Med.
PD NOV
PY 2011
VL 68
IS 11
BP 842
EP 848
DI 10.1136/oem.2010.064220
PG 7
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA 834AM
UT WOS:000295929100011
PM 21460389
ER
PT J
AU Bronson, DR
English, NB
Dettman, DL
Williams, DG
AF Bronson, Dustin R.
English, Nathan B.
Dettman, David L.
Williams, David G.
TI Seasonal photosynthetic gas exchange and water-use efficiency in a
constitutive CAM plant, the giant saguaro cactus (Carnegiea gigantea)
SO OECOLOGIA
LA English
DT Article
DE Crassulacean acid metabolism; CAM; Columnar cactus; Sonoran desert;
Transpiration; Stomatal conductance; Humidity
ID NET CO2 UPTAKE; FEROCACTUS-ACANTHODES; HEMIEPIPHYTIC CACTUS;
NATIONAL-MONUMENT; ISOTOPE RATIOS; CLIMATE-CHANGE; DESERT; HUMIDITY;
CARBON; ECOPHYSIOLOGY
AB Crassulacean acid metabolism (CAM) and the capacity to store large quantities of water are thought to confer high water use efficiency (WUE) and survival of succulent plants in warm desert environments. Yet the highly variable precipitation, temperature and humidity conditions in these environments likely have unique impacts on underlying processes regulating photosynthetic gas exchange and WUE, limiting our ability to predict growth and survival responses of desert CAM plants to climate change. We monitored net CO(2) assimilation (A (net)), stomatal conductance (g (s)), and transpiration (E) rates periodically over 2 years in a natural population of the giant columnar cactus Carnegiea gigantea (saguaro) near Tucson, Arizona USA to investigate environmental and physiological controls over carbon gain and water loss in this ecologically important plant. We hypothesized that seasonal changes in daily integrated water use efficiency (WUE(day)) in this constitutive CAM species would be driven largely by stomatal regulation of nighttime transpiration and CO(2) uptake responding to shifts in nighttime air temperature and humidity. The lowest WUE(day) occurred during time periods with extreme high and low air vapor pressure deficit (D (a)). The diurnal with the highest D (a) had low WUE(day) due to minimal net carbon gain across the 24 h period. Low WUE(day) was also observed under conditions of low D (a); however, it was due to significant transpiration losses. Gas exchange measurements on potted saguaro plants exposed to experimental changes in D (a) confirmed the relationship between D (a) and g (s). Our results suggest that climatic changes involving shifts in air temperature and humidity will have large impacts on the water and carbon economy of the giant saguaro and potentially other succulent CAM plants of warm desert environments.
C1 [Bronson, Dustin R.; Williams, David G.] Univ Wyoming, Dept Renewable Resources, Laramie, WY 82071 USA.
[Bronson, Dustin R.; Williams, David G.] Univ Wyoming, Dept Bot, Laramie, WY 82071 USA.
[English, Nathan B.] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA.
[Dettman, David L.] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA.
RP Bronson, DR (reprint author), Univ Wyoming, Dept Renewable Resources, 1000 E Univ Dr, Laramie, WY 82071 USA.
EM dbronson@upenn.edu
RI English, Nathan/B-4615-2008; James Cook University, TESS/B-8171-2012;
Williams, David/A-6407-2014
OI English, Nathan/0000-0002-6936-8079; Williams, David/0000-0003-3627-5260
FU National Science Foundation [NSF IOS-0717403]; Los Alamos National
Laboratory
FX This research was supported by the National Science Foundation (NSF
IOS-0717403). Nathan English was supported by the Los Alamos National
Laboratory LDRD Director's Fellowship. Also, we thank Samantha Stutz and
Mark Trees for their invaluable contributions. Finally, thank you to the
USDA-ARS Crops Research Laboratory in Fort Collins, CO.
NR 31
TC 5
Z9 6
U1 14
U2 84
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0029-8549
J9 OECOLOGIA
JI Oecologia
PD NOV
PY 2011
VL 167
IS 3
BP 861
EP 871
DI 10.1007/s00442-011-2021-1
PG 11
WC Ecology
SC Environmental Sciences & Ecology
GA 834SQ
UT WOS:000295984800024
PM 21822726
ER
PT J
AU Letant, SE
Plant, DF
Wilson, TS
Alviso, CT
Read, MSD
Maxwell, RS
AF Letant, Sonia E.
Plant, David F.
Wilson, Thomas S.
Alviso, Cynthia T.
Read, Mark S. D.
Maxwell, Robert S.
TI Application of density functional theory to the investigation of polymer
degradation: Example of cross-linked ethylene-vinyl acetate-vinyl
alcohol (EVA-OH) terpolymer de-acetylation
SO POLYMER DEGRADATION AND STABILITY
LA English
DT Article
DE Ethylene-vinyl acetate-vinyl alcohol; Degradation; Acetic acid
evolution; Density functional theory
ID THERMAL-DEGRADATION; POLY(VINYL ACETATE); POLY(ETHYLENE-CO-VINYL
ACETATE); MECHANISM; COPOLYMER
AB We report on the application of Density Functional Theory (DFT) methodologies to investigate the degradation of polymer materials and provide new insights into the effects of degradation on molecular geometry. The temperature- and radiation-assisted degradation of a cross-linked ethylene vinyl acetate vinyl alcohol (EVA-OH) elastomer was studied both experimentally and theoretically, in order to correlate observable parameters with theoretically calculated electronic properties. Experiments showed 'yellowing' of the material, outgassing of acetic acid, and attenuated IR deformation modes upon exposure to increased levels of gamma radiation or increased temperatures, consistent with the de-acetylation model in which acetic acid is abstracted from the vinyl acetate group via a molecular rearrangement involving the displacement of a hydrogen atom from the ethylene backbone toward the acetyl group, and the propagation of the mechanism to adjacent vinyl acetate groups, forming polyenes in the polymer backbone. DFT modeling predicted the molecular structures of the cross-linked EVA-OH polymer for various degrees of de-acetylation, with corresponding IR and UV-visible absorption spectra. Theoretical attenuated IR deformation modes matched experimental observations, and the theoretical absorption spectrum of polyenes with 5 double bonds matched the optical absorption data, shedding light onto the final chemical structure of the polymer fragment. In addition, DFT unveiled precise and local effects of de-acetylation on the geometry of both the remaining polymer chain and cross-linker, which could only be detected as methylene deformation mode reflectance changes by IR spectroscopy. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Letant, Sonia E.; Wilson, Thomas S.; Alviso, Cynthia T.; Maxwell, Robert S.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Plant, David F.; Read, Mark S. D.] Atom Weapon Estab, Reading RG7 4PR, Berks, England.
RP Letant, SE (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM letant1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
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. We thank Dr. E. A. Eastwood, from Honeywell Federal
Manufacturing & Technologies, Kansas City, MO for the synthesis of the
EVA-OH material used in this study and Dr. M. Pearson, from Lawrence
Livermore National Laboratory, for performing the TGA experiment.
NR 19
TC 0
Z9 0
U1 3
U2 26
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0141-3910
J9 POLYM DEGRAD STABIL
JI Polym. Degrad. Stabil.
PD NOV
PY 2011
VL 96
IS 11
BP 2019
EP 2028
DI 10.1016/j.polymdegradstab.2011.08.017
PG 10
WC Polymer Science
SC Polymer Science
GA 836QI
UT WOS:000296125800010
ER
PT J
AU Laganowsky, A
Zhao, ML
Soriaga, AB
Sawaya, MR
Cascio, D
Yeates, TO
AF Laganowsky, Arthur
Zhao, Minglei
Soriaga, Angela B.
Sawaya, Michael R.
Cascio, Duilio
Yeates, Todd O.
TI An approach to crystallizing proteins by metal-mediated synthetic
symmetrization
SO PROTEIN SCIENCE
LA English
DT Article
DE protein crystallization; protein design; metal binding; symmetry
ID X-RAY-DIFFRACTION; MACROMOLECULAR STRUCTURES; ANOMALOUS DIFFRACTION;
MAXIMUM-LIKELIHOOD; ESCHERICHIA-COLI; FUSION PROTEINS; BINDING SITES;
RESOLUTION; CRYSTALLOGRAPHY; COORDINATION
AB Combining the concepts of synthetic symmetrization with the approach of engineering metal-binding sites, we have developed a new crystallization methodology termed metal-mediated synthetic symmetrization. In this method, pairs of histidine or cysteine mutations are introduced on the surface of target proteins, generating crystal lattice contacts or oligomeric assemblies upon coordination with metal. Metal-mediated synthetic symmetrization greatly expands the packing and oligomeric assembly possibilities of target proteins, thereby increasing the chances of growing diffraction-quality crystals. To demonstrate this method, we designed various T4 lysozyme (T4L) and maltose-binding protein (MBP) mutants and cocrystallized them with one of three metal ions: copper (Cu2+), nickel (Ni2+), or zinc (Zn2+). The approach resulted in 16 new crystal structures-eight for T4L and eight for MBP-displaying a variety of oligomeric assemblies and packing modes, representing in total 13 new and distinct crystal forms for these proteins. We discuss the potential utility of the method for crystallizing target proteins of unknown structure by engineering in pairs of histidine or cysteine residues. As an alternate strategy, we propose that the varied crystallization-prone forms of T4L or MBP engineered in this work could be used as crystallization chaperones, by fusing them genetically to target proteins of interest.
C1 [Laganowsky, Arthur; Soriaga, Angela B.; Yeates, Todd O.] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA.
[Laganowsky, Arthur; Zhao, Minglei; Soriaga, Angela B.; Sawaya, Michael R.; Cascio, Duilio; Yeates, Todd O.] Inst Genom & Prote, UCLA DOE, Los Angeles, CA 90095 USA.
[Sawaya, Michael R.] Inst Genom & Prote, Howard Hughes Med Inst UCLA DOE, Los Angeles, CA 90095 USA.
RP Yeates, TO (reprint author), Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA.
EM yeates@mbi.ucla.edu
RI Zhao, Minglei/J-4446-2015;
OI Zhao, Minglei/0000-0001-5832-6060; Yeates, Todd/0000-0001-5709-9839;
Sawaya, Michael/0000-0003-0874-9043
FU Department of Energy Office of Science [DE-FC03-02ER63421]; NIH
[5T32GM008496, GM067555]
FX Grant sponsor: Department of Energy Office of Science (BER program);
Grant number: DE-FC03-02ER63421; Grant sponsor: NIH; Grant number:
5T32GM008496, GM067555
NR 68
TC 29
Z9 29
U1 2
U2 15
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0961-8368
J9 PROTEIN SCI
JI Protein Sci.
PD NOV
PY 2011
VL 20
IS 11
BP 1876
EP 1890
DI 10.1002/pro.727
PG 15
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 838FW
UT WOS:000296273700014
PM 21898649
ER
PT J
AU Wang, MY
Williams, JJ
Jiang, L
De Carlo, F
Jing, T
Chawla, N
AF Wang, M. Y.
Williams, J. J.
Jiang, L.
De Carlo, F.
Jing, T.
Chawla, N.
TI Dendritic morphology of alpha-Mg during the solidification of Mg-based
alloys: 3D experimental characterization by X-ray synchrotron tomography
and phase-field simulations
SO SCRIPTA MATERIALIA
LA English
DT Article
DE Magnesium dendrite; 3D microstructural characterization; Phase-field
simulations; Hexagonal close-packed (hcp); X-ray tomography
ID PATTERN-FORMATION; EVOLUTION; GROWTH
AB The microstructural features of many engineering materials are characterized by three-dimensional (3D) dendritic patterns. Here, we have used a combination of computer simulations by phase field method and 3D experimental characterization by X-ray synchrotron tomography to demonstrate that the morphologies of hexagonal close-packed alpha-Mg dendritic structures during solidification which exhibit quasi-perfect sixfold symmetry are different from previously thought. These results have important implications for predicting the microstructural features of cast alloys that exhibit dendritic solidification processes. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Wang, M. Y.; Williams, J. J.; Jiang, L.; Chawla, N.] Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA.
[Wang, M. Y.; Jing, T.] Tsinghua Univ, Key Lab Adv Mat Proc Technol, Dept Mech Engn, Beijing 100084, Peoples R China.
[De Carlo, F.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Chawla, N (reprint author), Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA.
EM nchawla@asu.edu
RI Chawla, Nikhilesh/A-3433-2008
OI Chawla, Nikhilesh/0000-0002-4478-8552
FU National Basic Research Program of China [2006CB605208]; National
Science and Technology Major Project of China [2011ZX04014-052];
Ministry of Education of China [20090002110031]; Chinese Scholarship
Council; US Department of Energy, Office of Science, Office of Basic
Energy Sciences [DE-AC02-06CH11357]
FX M.Y.W. and T.J. acknowledge financial support from the National Basic
Research Program of China, under Grant No. 2006CB605208; the National
Science and Technology Major Project of China, under Grant No.
2011ZX04014-052; and Doctoral Fund of Ministry of Education of China,
under Grant No. 20090002110031. M.Y.W. acknowledges the Chinese
Scholarship Council for financial support during his stay at ASU. Use of
the Advanced Photon Source was supported by the US Department of Energy,
Office of Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-06CH11357.
NR 23
TC 22
Z9 24
U1 1
U2 30
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6462
J9 SCRIPTA MATER
JI Scr. Mater.
PD NOV
PY 2011
VL 65
IS 10
BP 855
EP 858
DI 10.1016/j.scriptamat.2011.07.040
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 834ZL
UT WOS:000296002900002
ER
PT J
AU Aidhy, DS
Wolf, D
El-Azab, A
AF Aidhy, Dilpuneet S.
Wolf, Dieter
El-Azab, Anter
TI Comparison of point-defect clustering in irradiated CeO2 and UO2: A
unified view from molecular dynamics simulations and experiments
SO SCRIPTA MATERIALIA
LA English
DT Article
DE Point defects; Bulk diffusion; Binary oxides; Radiation damage
ID DIOXIDE; DAMAGE
AB The degree to which ceria can be considered as a surrogate for urania is elucidated by molecular dynamics simulations that compare the types of defect clusters formed under irradiation. The simulations and their comparison with experiments suggest that the defect-clustering processes in the two materials are very similar. In particular, both materials form < 1 1 1 > Schottky defects and two types of interstitial clusters that, depending on the diffusion conditions, are either charge-neutral dislocation loops or charged cuboctahedral clusters. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Aidhy, Dilpuneet S.; Wolf, Dieter] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[El-Azab, Anter] Florida State Univ, Dept Comp Sci, Tallahassee, FL 32306 USA.
RP Wolf, D (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM dilaidhy@in.ibm.com; dwolf@anl.gov
FU UChicago Argonne, LLC; US Department of Energy Office of Science
laboratory [DE-AC02-06CH11357]; Energy Frontier Research Center on
Materials Science of Nuclear Fuel; US Department of Energy, Office of
Basic Energy Sciences
FX This work was supported by UChicago Argonne, LLC, Operator of Argonne
National Laboratory, a US Department of Energy Office of Science
laboratory operated under Contract No. DE-AC02-06CH11357. D.A. and D.W.
thank B. Ye and J. Stubbins for making available a preprint of their
experimental work. D.A. also thanks D Yun for helpful discussions on
dislocation loops in CeO2. A.E. and D.A. were partially
supported by the Energy Frontier Research Center on Materials Science of
Nuclear Fuel funded by the US Department of Energy, Office of Basic
Energy Sciences. We gratefully acknowledge use of the Fusion cluster in
the Laboratory Computing Resource Center at Argonne National Laboratory.
NR 20
TC 21
Z9 21
U1 7
U2 45
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6462
J9 SCRIPTA MATER
JI Scr. Mater.
PD NOV
PY 2011
VL 65
IS 10
BP 867
EP 870
DI 10.1016/j.scriptamat.2011.07.051
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 834ZL
UT WOS:000296002900005
ER
PT J
AU Shute, CJ
Myers, BD
Liao, Y
Li, SY
Hodge, AM
Barbee, TW
Zhu, YT
Weertman, JR
AF Shute, C. J.
Myers, B. D.
Liao, Y.
Li, S. -Y.
Hodge, A. M.
Barbee, T. W., Jr.
Zhu, Y. T.
Weertman, J. R.
TI High-pressure torsion of copper samples containing columns of highly
aligned nanotwins
SO SCRIPTA MATERIALIA
LA English
DT Article
DE Nanotwins; Deformation structures; Copper; High-pressure torsion
ID DYNAMIC PLASTIC-DEFORMATION; NANO-TWINNED COPPER; SCALE TWINS; EVOLUTION
AB Copper disks containing columns of aligned nanotwins were subjected to high-pressure torsion (HPT) involving a half turn under a 3 GPa compressive stress. The overall shear strain of 21 at 1 mm from the center of rotation is concentrated at the surfaces, where the columns of twins have been transformed into a 3-D grain structure to a depth of about 5 mu m. The remaining columns of twins were sheared in the direction of the shear stress with little rotation of the twin boundaries. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Shute, C. J.; Myers, B. D.; Liao, Y.; Li, S. -Y.; Weertman, J. R.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
[Hodge, A. M.] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA.
[Barbee, T. W., Jr.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Zhu, Y. T.] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA.
RP Weertman, JR (reprint author), Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
EM jrweertman@northwestern.edu
RI Zhu, Yuntian/B-3021-2008; Weertman, Julia/B-7540-2009; Weertman,
Johannes/B-7539-2009
OI Zhu, Yuntian/0000-0002-5961-7422;
FU National Science Foundation at the Materials Research Center of
Northwestern University [DMR-020513]
FX The authors thank W.W. Jian for carrying out the HPT deformation. This
work made use of shared facilities supported by the MRSEC Program of the
National Science Foundation (DMR-020513) at the Materials Research
Center of Northwestern University.
NR 15
TC 8
Z9 8
U1 2
U2 17
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6462
J9 SCRIPTA MATER
JI Scr. Mater.
PD NOV
PY 2011
VL 65
IS 10
BP 899
EP 902
DI 10.1016/j.scriptamat.2011.08.004
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 834ZL
UT WOS:000296002900013
ER
PT J
AU Edelstein, A
Fink, D
Musch, M
Valuckaite, V
Zaborina, O
Grubjesic, S
Firestone, MA
Matthews, JB
Alverdy, JC
AF Edelstein, Adam
Fink, David
Musch, Mark
Valuckaite, Vesta
Zaborina, Olga
Grubjesic, Simonida
Firestone, Millicent A.
Matthews, Jeffrey B.
Alverdy, John C.
TI PROTECTIVE EFFECTS OF NONIONIC TRIBLOCK COPOLYMERS ON BILE ACID-MEDIATED
EPITHELIAL BARRIER DISRUPTION
SO SHOCK
LA English
DT Article
DE Enterocyte; sodium deoxycholate; polyethylene glycol block copolymers;
PEG 15-20; gut-derived sepsis
ID INDUCED GASTROINTESTINAL INJURY; GASTRIC-MUCOSAL BARRIER; SALT TOXICITY;
CELL-LINE; IN-VITRO; MEMBRANES; CACO-2; RATS; PERMEABILITY; DAMAGE
AB Translocation of bacteria and other luminal factors from the intestine following surgical injury can be a major driver of critical illness. Bile acids have been shown to play a key role in the loss of intestinal epithelial barrier function during states of host stress. Experiments to study the ability of nonionic block copolymers to abrogate barrier failure in response to bile acid exposure are described. In vitro experiments were performed with the bile salt sodium deoxycholate on Caco-2 enterocyte monolayers using transepithelial electrical resistance to assay barrier function. A bisphenol A coupled triblock polyethylene glycol (PEG), PEG 15-20, was shown to prevent sodium deoxycholate-induced barrier failure. Enzyme-linked immunosorbent assay, lactate dehydrogenase, and caspase 3-based cell death detection assays demonstrated that bile acid-induced apoptosis and necrosis were prevented with PEG 15-20. Immunofluorescence microscopic visualization of the tight junctional protein zonula occludens 1 (ZO-1) demonstrated that PEG 15-20 prevented significant changes in tight junction organization induced by bile acid exposure. Preliminary transepithelial electrical resistance-based studies examining structure-function correlates of polymer protection against bile acid damage were performed with a small library of PEG-based copolymers. Polymer properties associated with optimal protection against bile acid-induced barrier disruption were PEG-based compounds with a molecular weight greater than 10 kd and amphiphilicity. The data demonstrate that PEG-based copolymer architecture is an important determinant that confers protection against bile acid injury of intestinal epithelia.
C1 [Fink, David; Valuckaite, Vesta; Zaborina, Olga; Matthews, Jeffrey B.; Alverdy, John C.] Univ Chicago, Dept Surg, Chicago, IL 60637 USA.
[Edelstein, Adam; Musch, Mark] Univ Chicago, Pritzker Sch Med, Chicago, IL 60637 USA.
[Valuckaite, Vesta; Zaborina, Olga; Grubjesic, Simonida; Firestone, Millicent A.; Matthews, Jeffrey B.; Alverdy, John C.] Univ Chicago, Bioengn Inst Adv Surg & Endoscopy, Chicago, IL 60637 USA.
[Grubjesic, Simonida; Firestone, Millicent A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Alverdy, JC (reprint author), Univ Chicago, Dept Surg, 5841 S Maryland Ave,MC 5029, Chicago, IL 60637 USA.
EM jalverdy@surgery.bsd.uchicago.edu
FU University of Chicago Pritzker School of Medicine via NIDDK
[DK062719-22]; University of Chicago Pritzker School of Medicine via NIH
[5R01GM062344-11]
FX This work was supported by the University of Chicago Pritzker School of
Medicine's Summer Research Program via NIDDK grant DK062719-22 and NIH
grant 5R01GM062344-11 (to J.C.A.).
NR 32
TC 5
Z9 5
U1 0
U2 2
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1073-2322
J9 SHOCK
JI Shock
PD NOV
PY 2011
VL 36
IS 5
BP 451
EP 457
DI 10.1097/SHK.0b013e31822d8de1
PG 7
WC Critical Care Medicine; Hematology; Surgery; Peripheral Vascular Disease
SC General & Internal Medicine; Hematology; Surgery; Cardiovascular System
& Cardiology
GA 837TX
UT WOS:000296227600005
PM 21937955
ER
PT J
AU Baer, DR
AF Baer, D. R.
TI Summary of ISO/TC 201 Standard: ISO 29081: 2010, surface chemical
analysis - Auger electron spectroscopy - reporting of methods used for
charge control and charge correction
SO SURFACE AND INTERFACE ANALYSIS
LA English
DT Article
DE AES; surface charging; charge correction; charge control
ID ENERGY SCALES; SPECTROMETERS; CALIBRATION
AB This international standard specifies the minimum amount of information required for describing the methods of charge control and charge correction in measurements of Auger electron transitions from insulating specimens by electron-stimulated AES to be reported with the analytical results. Information is provided in an Annex on methods that have been found useful for charge control prior to or during AES analysis. The Annex also includes a summary table of methods or approaches, ordered by simplicity of approach. A similar international standard has been published for XPS (ISO 19318: 2003(E), Surface chemical analysis - XPS - reporting of methods used for charge control and charge correction. Copyright (C) 2010 John Wiley & Sons, Ltd.
C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Baer, DR (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
EM don.baer@pnl.gov
RI Baer, Donald/J-6191-2013
OI Baer, Donald/0000-0003-0875-5961
FU US Department of Energy (DOE), Office of Science through the Offices of
Basic Energy Science and Biological and Environmental Research
FX Because ISO is an international volunteer consensus standards
organization, all ISO TC 201 standards involve a significant amount of
volunteer effort from topical experts and the direct or indirect support
of the companies, governments and granting agencies that employ or
support the participants in TC 201. The authors of
Reference[8] made significant contributions to the
development of the standard and related method summary. The
contributions from the current author (DRB) relate directly to work
supported by the US Department of Energy (DOE), Office of Science
through the Offices of Basic Energy Science and Biological and
Environmental Research. Some of the elements of the standard were
developed or verified in the Environmental Molecular Sciences Laboratory
(EMSL), a DOE user facility operated by Battelle for the DOE Office of
Biological and Environmental Research.
NR 8
TC 1
Z9 1
U1 0
U2 2
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0142-2421
J9 SURF INTERFACE ANAL
JI Surf. Interface Anal.
PD NOV
PY 2011
VL 43
IS 11
BP 1444
EP 1447
DI 10.1002/sia.3724
PG 4
WC Chemistry, Physical
SC Chemistry
GA 837VZ
UT WOS:000296237200013
ER
PT J
AU van Dam, HJJ
de Jong, WA
Bylaska, E
Govind, N
Kowalski, K
Straatsma, TP
Valiev, M
AF van Dam, H. J. J.
de Jong, W. A.
Bylaska, E.
Govind, N.
Kowalski, K.
Straatsma, T. P.
Valiev, M.
TI NWChem: scalable parallel computational chemistry
SO WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE
LA English
DT Article
ID DENSITY-FUNCTIONAL THEORY; MOLECULAR SIMULATIONS; IMPLEMENTATION;
DYNAMICS
AB NWChem is a general-purpose computational chemistry code specifically designed to run on distributed memory parallel computers. The core functionality of the code focuses on molecular dynamics, Hartree-Fock theory, and density functional theory methods for both plane-wave basis sets as well as Gaussian basis sets, tensor contraction engine-based coupled cluster capabilities, and combined quantum mechanics/molecular mechanics descriptions. It was realized from the beginning that scalable implementations of these methods required a programming paradigm inherently different from what message-passing approaches could offer. In response, a global address space library, the Global Array toolkit, was developed. The programming model it offers is based on using predominantly one-sided communication. This model underpins most of the functionality in NWChem, and the power of it is exemplified by the fact that the code scales to tens of thousands of processors. In this paper, the core capabilities of NWChem are described as well as their implementation to achieve an efficient computational chemistry code with high parallel scalability. (C) 2011 John Wiley & Sons, Ltd. WIREs Comput Mol Sci 2011 1 888-894 DOI: 10.1002/wcms.62
C1 [van Dam, H. J. J.; de Jong, W. A.; Bylaska, E.; Govind, N.; Kowalski, K.; Straatsma, T. P.; Valiev, M.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP van Dam, HJJ (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM Hubertus.vanDam@pnl.gov
RI DE JONG, WIBE/A-5443-2008;
OI DE JONG, WIBE/0000-0002-7114-8315; van Dam, Hubertus Johannes
Jacobus/0000-0002-0876-3294
FU Department of Energy's Office of Biological and Environmental Research;
US Department of Energy [DE-AC05-76RL01830]
FX This work was done in part using EMSL, a national scientific user
facility sponsored by the Department of Energy's Office of Biological
and Environmental Research and located at Pacific Northwest National
Laboratory, operated for the US Department of Energy by Battelle under
contract DE-AC05-76RL01830.
NR 16
TC 13
Z9 13
U1 3
U2 20
PU WILEY PERIODICALS, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN STREET, MALDEN, MA 02148-529 USA
SN 1759-0876
J9 WIRES COMPUT MOL SCI
JI Wiley Interdiscip. Rev.-Comput. Mol. Sci.
PD NOV-DEC
PY 2011
VL 1
IS 6
BP 888
EP 894
DI 10.1002/wcms.62
PG 7
WC Chemistry, Multidisciplinary; Mathematical & Computational Biology
SC Chemistry; Mathematical & Computational Biology
GA 835AI
UT WOS:000296005200003
ER
PT J
AU Holliday, K
Smith, N
Hartmann, T
Cerefice, G
Czerwinski, K
AF Holliday, Kiel
Smith, Nicholas
Hartmann, Thomas
Cerefice, Gary
Czerwinski, Ken
TI Acidic dissolution behavior of U containing ZrO2-MgO ceramics
SO ANNALS OF NUCLEAR ENERGY
LA English
DT Article
DE Inert matrix; Fuel; Dissolution; Zirconia; Uranium
ID INERT MATRIX FUEL; PRESSURIZED-WATER REACTORS; PLUTONIUM DISPOSITION;
MGO-ZRO2 CERAMICS; THORIA FUELS; FABRICATION
AB This study explores the possibility of dissolving zirconia-magnesia inert matrix fuel containing uranium oxide as a fissile material and plutonium homolog and erbium oxide as a burnable poison with nitric and sulfuric acid as a potential first step in a reprocessing scheme. The progress of the dissolution is followed by monitoring the amount of material in solution by inductively coupled plasma-atomic emission spectroscopy, assessing the speciation of the material by time resolved laser fluorescence spectroscopy, and determining and quantifying the crystalline phases present in the remaining residue by X-ray diffraction. This study has shown a linear incongruent dissolution of the cubic zirconia phase in concentrated nitric acid under certain chemical compositions, while the magnesium oxide phase is completely soluble. In sulfuric acid uranium, erbium, and magnesium are soluble to different extents while zirconium forms a colloidal suspension that conglomerates and settles out of solution. The feasibility of the dissolution of zirconia-magnesia inert matrix fuel with nitric and sulfuric acid for reprocessing is discussed. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Holliday, Kiel; Smith, Nicholas; Hartmann, Thomas; Czerwinski, Ken] Univ Nevada, Radiochem Grp, Las Vegas, NV 89154 USA.
[Hartmann, Thomas] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Cerefice, Gary] Univ Nevada, Dept Hlth Phys, Las Vegas, NV 89154 USA.
RP Holliday, K (reprint author), Univ Nevada, Radiochem Grp, Las Vegas, NV 89154 USA.
EM holliday.kiel@gmail.com
FU US Department of Energy Office of Nuclear Energy [DE-FG07-01AL67358]
FX This project was funded under the UNLV Transmutation Research Program
administered by the Harry Reid Center for Environmental Studies under
the auspices of the US Department of Energy Office of Nuclear Energy
(Cooperative Agreement No. DE-FG07-01AL67358).
NR 21
TC 2
Z9 2
U1 1
U2 14
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0306-4549
J9 ANN NUCL ENERGY
JI Ann. Nucl. Energy
PD NOV
PY 2011
VL 38
IS 11
BP 2404
EP 2409
DI 10.1016/j.anucene.2011.07.034
PG 6
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 831VN
UT WOS:000295759300012
ER
PT J
AU Chandler, D
Maldonado, GI
Primm, RT
Freels, JD
AF Chandler, David
Maldonado, G. Ivan
Primm, R. T., III
Freels, J. D.
TI Neutronics modeling of the High Flux Isotope Reactor using COMSOL
SO ANNALS OF NUCLEAR ENERGY
LA English
DT Article
DE HFIR; COMSOL Multiphysics; Diffusion theory; Neutronics; SCALE; NEWT
AB The High Flux Isotope Reactor located at the Oak Ridge National Laboratory is a versatile 85 MWth research reactor with cold and thermal neutron scattering, materials irradiation, isotope production, and neutron activation analysis capabilities. HFIR staff members are currently in the process of updating the thermal hydraulic and reactor transient modeling methodologies. COMSOL Multiphysics has been adopted for the thermal hydraulic analyses and has proven to be a powerful finite-element-based simulation tool for solving multiple physics-based systems of partial and ordinary differential equations. Modeling reactor transients is a challenging task because of the coupling of neutronics, heat transfer, and hydrodynamics. This paper presents a preliminary COMSOL-based neutronics study performed by creating a two-dimensional, two-group, diffusion neutronics model of HFIR to study the spatially-dependent, beginning-of-cycle fast and thermal neutron fluxes. The 238-group ENDF/B-VII neutron cross section library and NEWT, a two-dimensional, discrete-ordinates neutron transport code within the SCALE 6 code package, were used to calculate the two-group neutron cross sections required to solve the diffusion equations. The two-group diffusion equations were implemented in the COMSOL coefficient form PDE application mode and were solved via eigenvalue analysis using a direct (PARDISO) linear system solver. A COMSOL-provided adaptive mesh refinement algorithm was used to increase the number of elements in areas of largest numerical error to increase the accuracy of the solution. The flux distributions calculated by means of COMSOL/SCALE compare well with those calculated with benchmarked three-dimensional MCNP and KENO models, a necessary first step along the path to implementing two- and three-dimensional models of HFIR in COMSOL for the purpose of studying the spatial dependence of transient-induced behavior in the reactor core. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Chandler, David; Maldonado, G. Ivan] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA.
[Primm, R. T., III; Freels, J. D.] Oak Ridge Natl Lab, Res Reactors Div, Oak Ridge, TN 37831 USA.
RP Chandler, D (reprint author), Univ Tennessee, Dept Nucl Engn, 311 Pasqua Engn, Knoxville, TN 37996 USA.
EM dchandl6@utk.edu; Ivan.Mal-donado@utk.edu;
trentprimm@primmconsultingllc.com; freelsjd@ornl.gov
OI Maldonado, Guillermo/0000-0001-7377-4494
FU US Department of Energy [DE-AC05-000R22725]
FX This manuscript has been authored by UT-Battelle, LLC, under Contract
No. DE-AC05-000R22725 with the US Department of Energy. The United
States Government retains and the publisher, by accepting the article
for publication, acknowledges that the United States Government retains
a non-exclusive, paid-up, irrevocable, world-wide license to publish or
reproduce the published form of this manuscript, or allow others to do
so, for United States Government purposes.
NR 12
TC 1
Z9 1
U1 2
U2 24
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0306-4549
J9 ANN NUCL ENERGY
JI Ann. Nucl. Energy
PD NOV
PY 2011
VL 38
IS 11
BP 2594
EP 2605
DI 10.1016/j.anucene.2011.06.002
PG 12
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 831VN
UT WOS:000295759300034
ER
PT J
AU Park, S
Reitz, RD
Kim, J
AF Park, Sungwook
Reitz, Rolf D.
Kim, Junghwan
TI Combustion and emission characteristics of converging group-hole nozzle
under lean engine operating conditions
SO FUEL
LA English
DT Article
DE Converging group-hole nozzle; Gasjet superposition model; Combustion and
emissions
ID MULTIPLE INJECTION STRATEGIES; BINARY DROPLET COLLISIONS; DIESEL
COMBUSTION; MODEL; SPRAYS; SIMULATIONS; ATOMIZATION; PRESSURE
AB This paper describes the combustion and emission characteristics of converging group-hole nozzles and compares the results to those of a single hole nozzle with the same overall nozzle exit hole area. Engine experiments were performed using a single-cylinder diesel engine operating under overall lean conditions (i.e., equivalence ratio 0.45). The considered nozzle configurations in the experiments included a converging group-hole nozzle (cGHN) with 3 degrees converging angle, 0.090 mm hole diameter, and a single hole nozzle (SHN) of 0.128 mm hole diameter. The CFD calculations used the KIVA engine simulation code integrated with a Gasjet superposition model. Using the validated calculation models, the test conditions were also expanded to consider wider converging angle cGHNs (up to 12 degrees). The results show that the evaporation of sprays from the cGHN-3 degrees nozzle is more delayed than that of the SHN case and the cGHNs entrain more ambient gas due to smaller droplet sizes in the outer spray periphery. In addition, an increase in the converging angle of the cGHNs promotes fuel evaporation and produces a more homogeneous fuel-air mixture. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Kim, Junghwan] Oak Ridge Natl Lab, Fuel Engines & Emiss Res Ctr, Oak Ridge, TN 37831 USA.
[Park, Sungwook] Hanyang Univ, Dept Mech Engn, Seoul 133791, South Korea.
[Reitz, Rolf D.] Univ Wisconsin, Engine Res Ctr, Madison, WI 53706 USA.
RP Kim, J (reprint author), Oak Ridge Natl Lab, Fuel Engines & Emiss Res Ctr, POB 2008, Oak Ridge, TN 37831 USA.
EM kimj@ornl.gov
NR 31
TC 1
Z9 1
U1 0
U2 11
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0016-2361
J9 FUEL
JI Fuel
PD NOV
PY 2011
VL 90
IS 11
BP 3259
EP 3267
DI 10.1016/j.fuel.2011.06.021
PG 9
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 831MD
UT WOS:000295734200015
ER
PT J
AU Chung, KY
Yoon, WS
Kim, KB
Cho, BW
Yang, XQ
AF Chung, Kyung Yoon
Yoon, Won-Sub
Kim, Kwang-Bum
Cho, Byung-Won
Yang, Xiao-Qing
TI Formation of an SEI on a LiMn2O4 cathode during room temperature
charge-discharge cycling studied by soft X-ray absorption spectroscopy
at the Fluorine K-edge
SO JOURNAL OF APPLIED ELECTROCHEMISTRY
LA English
DT Article
DE LiMn2O4; SEI; LiF; Soft X-ray absorption spectroscopy; Lithium secondary
batteries
ID THIN-FILM ELECTRODES; STRUCTURAL FATIGUE; SPINEL ELECTRODES; CAPACITY
LOSSES; BATTERIES; PERFORMANCE; OXIDES
AB The solid electrolyte interface (SEI) formation on the surface of LiMn2O4 electrodes during room temperature charge-discharge cycling was studied using soft X-ray absorption spectroscopy at the Fluorine (F) K-edge. LiMn2O4 electrodes without any binder were prepared by electrostatic spray deposition to eliminate the signal originating from the PVDF binder in the F K-edge X-ray absorption spectra. The F K-edge absorption spectra show that the SEI layer forms at a very early stage of cycling. SEI growth takes place during discharge. In addition, LiF formation is accelerated if the discharge step follows a charge step. The F K-edge absorption spectra suggest that the major component of the SEI is LiF.
C1 [Chung, Kyung Yoon; Cho, Byung-Won] Korea Inst Sci & Technol, Energy Storage Res Ctr, Seoul 136791, South Korea.
[Yoon, Won-Sub] Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South Korea.
[Kim, Kwang-Bum] Yonsei Univ, Div Mat Sci & Engn, Seoul 120749, South Korea.
[Yang, Xiao-Qing] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Chung, KY (reprint author), Korea Inst Sci & Technol, Energy Storage Res Ctr, Seoul 136791, South Korea.
EM kychung@kist.re.kr
RI Yoon, Won-Sub/H-2343-2011; Chung, Kyung Yoon/E-4646-2011
OI Chung, Kyung Yoon/0000-0002-1273-746X
FU National Research Foundation of Korea (NRF); Ministry of Education,
Science, and Technology (MEST) [2010-00351]; Office of Vehicle
Technologies of the US Department of Energy [DE-AC02-98CH10886];
National Research Laboratory through the National Research Foundation of
Korea (NRF); Ministry of Education, Science and Technology (MEST)
[2007-0055835]; Korean Government (MKE)
FX The study done at KIST was supported by the Global Research Laboratory
Program through the National Research Foundation of Korea (NRF), which
is funded by the Ministry of Education, Science, and Technology (MEST)
(Grant No: 2010-00351). The study done at BNL was supported by the
Assistant Secretary for Energy Efficiency and Renewable Energy, Office
of Vehicle Technologies of the US Department of Energy under Contract
No. DE-AC02-98CH10886. The study done at Yonsei University was supported
by the National Research Laboratory Program through the National
Research Foundation of Korea (NRF) grant funded by the Ministry of
Education, Science and Technology (MEST) (Grant No: 2007-0055835). The
study done at SKKU was supported by a grant from the fundamental R&D
program for Technology of World Premier Materials and the Fundamental
Materials & Components technology developing program by the Korean
Government (MKE). Some supporting study was done at beamlines 7B1 (XAS
KIST) and 10B (KIST-PAL) at Pohang Accelerator Laboratory (PAL) in
Korea.
NR 18
TC 6
Z9 6
U1 3
U2 55
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0021-891X
J9 J APPL ELECTROCHEM
JI J. Appl. Electrochem.
PD NOV
PY 2011
VL 41
IS 11
BP 1295
EP 1299
DI 10.1007/s10800-011-0344-6
PG 5
WC Electrochemistry
SC Electrochemistry
GA 834UD
UT WOS:000295988700006
ER
PT J
AU Han, JB
Carey, JW
AF Han, Jiabin
Carey, J. William
TI Localized CO2 corrosion propagation at moderate FeCO3 supersaturation
initiated by mechanical removal of corrosion scale
SO JOURNAL OF APPLIED ELECTROCHEMISTRY
LA English
DT Article
DE Localized corrosion; Carbon dioxide; Electrochemistry; Scale
ID MILD-STEEL; CARBON-STEEL
AB The propagation of localized CO2 corrosion was investigated at moderate iron carbonate supersaturation using an artificial defect method with re-formed corrosion scale. A mechanical tool was developed which locally removed pre-formed iron carbonate scale and initiated localized corrosion at a FeCO3 supersaturation of 3-10. The localized corrosion rate was calculated based on electrochemical measurement using a simplified algorithm and was also measured at the deepest part of the defect using scanning electron microscopy. Localized corrosion was driven by a galvanic cell established between the two surfaces exposed in the artificial defect where an open circuit potential difference was maintained.
C1 [Han, Jiabin; Carey, J. William] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA.
RP Han, JB (reprint author), Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA.
EM jhan@lanl.gov
FU DOE [FE-10-001-FY11]; Institute for Corrosion and Multiphase Technology
of Ohio University
FX The authors thank the Fossil Energy program of DOE for grant
FE-10-001-FY11. The author, Jiabin Han, would like to acknowledge the
financial support to allow the experimental work from the Joint Industry
Project advisory board members of Institute for Corrosion and Multiphase
Technology of Ohio University: Baker Hughes, BG Group, BP, Champion,
Chevron, Clariant, Conoco Phillips, Encana, Eni, ExxonMobil, INPEX,
IONIK, MI-Swaco, Nalco, Occidental Oil, Petronas, Petrobras, PTTEP,
Saudi Aramco, Shell, Tenaris and Total.
NR 17
TC 2
Z9 2
U1 0
U2 7
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0021-891X
J9 J APPL ELECTROCHEM
JI J. Appl. Electrochem.
PD NOV
PY 2011
VL 41
IS 11
BP 1367
EP 1371
DI 10.1007/s10800-011-0337-5
PG 5
WC Electrochemistry
SC Electrochemistry
GA 834UD
UT WOS:000295988700014
ER
PT J
AU Fedorchuk, AO
Gorgut, GP
Parasyuk, OV
Lakshminarayana, G
Kityk, IV
Piasecki, M
AF Fedorchuk, A. O.
Gorgut, G. P.
Parasyuk, O. V.
Lakshminarayana, G.
Kityk, I. V.
Piasecki, M.
TI IR operated novel Ag0.98Cu0.02GaGe3Se8 single crystals
SO JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
LA English
DT Article
DE Optical materials; Chalcogenides; Crystal growth; X-ray diffraction;
Phonons
ID NONLINEAR CRYSTALS; SOLID-SOLUTIONS; AGXGAXGE1-XSE2; AGGAGE5SE12
AB In this work, we report on the structural and optical properties of novel Ag0.98Cu0.02GaGe3Se8 single crystals that were synthesized by the Bridgman-Stockbarger technique. We have performed illumination by 10.6 mu m CO2 pulsed laser working in the microsecond time duration regime. Such illumination allows causing substantial changes for both pure electronic nonlinear optical effects like optical second harmonic generation as well as piezooptical effects described by the fourth rank tensors. The measurements of the piezo-optical effects were carried out at different temperatures. The effects are observed only during the IR CO2 laser illumination and are disappeared after switching off the illumination. Simultaneously the IR induced optical second harmonic generation at Er:glass laser fundamental wavelength 1540 nm was performed during illumination by nanosecond Nd:YAG and Er3+:glass laser. The observed effects allow to use the studied materials as promising for IR-optoelectronic devices. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Lakshminarayana, G.] Los Alamos Natl Lab, Mat Sci & Technol Div MST 7, Los Alamos, NM 87545 USA.
[Fedorchuk, A. O.] Lviv Natl Univ Vet Med & Biotechnol, Dept Inorgan & Organ Chem, UA-79010 Lvov, Ukraine.
[Gorgut, G. P.; Parasyuk, O. V.] Volyn Natl Univ, Dept Inorgan & Phys Chem, UA-43025 Lutsk, Ukraine.
[Kityk, I. V.] Czestohcowa Univ Technol, Dept Elect Engn, Czestohcowa, Poland.
[Piasecki, M.] J Dlugosz Univ Czestochowa, Inst Phys, Czestohcowa, Poland.
RP Lakshminarayana, G (reprint author), Los Alamos Natl Lab, Mat Sci & Technol Div MST 7, POB 1663, Los Alamos, NM 87545 USA.
EM glnphysics@rediffmail.com
RI Kityk, Iwan/M-4032-2015;
OI Gandham, Lakshminarayana/0000-0002-1458-9368
NR 15
TC 27
Z9 27
U1 1
U2 5
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0022-3697
J9 J PHYS CHEM SOLIDS
JI J. Phys. Chem. Solids
PD NOV
PY 2011
VL 72
IS 11
BP 1354
EP 1357
DI 10.1016/j.jpcs.2011.08.008
PG 4
WC Chemistry, Multidisciplinary; Physics, Condensed Matter
SC Chemistry; Physics
GA 831UG
UT WOS:000295756000027
ER
PT J
AU Li, JV
Nardes, AM
Liang, ZQ
Shaheen, SE
Gregg, BA
Levi, DH
AF Li, Jian V.
Nardes, Alexandre M.
Liang, Ziqi
Shaheen, Sean E.
Gregg, Brian A.
Levi, Dean H.
TI Simultaneous measurement of carrier density and mobility of organic
semiconductors using capacitance techniques
SO ORGANIC ELECTRONICS
LA English
DT Article
DE Organic solar cell; Carrier density; Carrier mobility; Capacitance
technique
ID CHARGE-TRANSPORT; ADMITTANCE SPECTROSCOPY; SCHOTTKY BARRIERS;
SOLAR-CELLS; RECOMBINATION; DISTRIBUTIONS; TRAPS
AB We present a method to measure both the majority carrier density and mobility in organic semiconductors from the voltage and frequency dependence of capacitance (C-V-f). Poly(3-hexylthiophene) (P3HT) is used as the prototypical material. The carrier density, and its spatial distribution in a planar device structure, is obtained from a subset of the C-V-f data by conventional capacitance-voltage analysis. We show that the validity of the carrier density extraction depends critically on the measurement frequency. Namely, one should make sure that the measurement frequency is lower than the modified dielectric relaxation frequency, which is characteristically low in organic semiconductors due to their low carrier mobility. Our method further exploits the voltage dependence of the modified dielectric relaxation frequency to measure the conductivity and carrier mobility. This mobility extraction method requires no complex fitting or simulation. Nor does it assume any particular dispersive model of mobility a priori. The carrier density, mobility, and conductivity of P3HT all increase with temperature from 250 to 300 K. The activation energies of mobility and conductivity are 0.15 +/- 0.01 and 0.24 +/- 0.03 eV, respectively. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Li, Jian V.; Nardes, Alexandre M.; Liang, Ziqi; Shaheen, Sean E.; Gregg, Brian A.; Levi, Dean H.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Li, JV (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
EM jian.li@nrel.gov
RI Liang, Ziqi/G-9312-2011; Nardes, Alexandre/C-8556-2012; Shaheen,
Sean/M-7893-2013; Li, Jian/B-1627-2016
FU US Department of Energy, Office of Science, Basic Energy Science,
Division of Chemical Sciences, Geosciences and Biosciences
[DE-AC36-08GO28308]
FX This work was funded by the US Department of Energy, Office of Science,
Basic Energy Science, Division of Chemical Sciences, Geosciences and
Biosciences, under Contract No. DE-AC36-08GO28308 to NREL.
NR 36
TC 28
Z9 28
U1 3
U2 40
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1566-1199
EI 1878-5530
J9 ORG ELECTRON
JI Org. Electron.
PD NOV
PY 2011
VL 12
IS 11
BP 1879
EP 1885
DI 10.1016/j.orgel.2011.08.002
PG 7
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 832TL
UT WOS:000295830700020
ER
PT J
AU Brauer, B
Kukreja, R
Virkar, A
Akkerman, HB
Fognini, A
Tyliszczak, T
Bao, ZN
AF Braeuer, Bjoern
Kukreja, Roopali
Virkar, Ajay
Akkerman, Hylke B.
Fognini, Andreas
Tyliszczak, Tolek
Bao, Zhenan
TI Carrier mobility in pentacene as a function of grain size and
orientation derived from scanning transmission X-ray microscopy
SO ORGANIC ELECTRONICS
LA English
DT Article
DE X-ray microscopy; Pentacene; STXM; Grain
ID FIELD-EFFECT TRANSISTORS; THIN-FILMS; MAGNETIC-PROPERTIES; TRANSPORT;
BOUNDARY; SPECTROMICROSCOPY; PERFORMANCE; DENSITY
AB Pentacene field-effect transistors were prepared on silicon nitride membranes for scanning transmission X-ray microscopy (STXM) investigations. The membranes were modified by different self-assembled monolayers (SAMs). Pentacene was deposited atop the SAM-treated membrane and the in-plane orientation of the grains were subsequently investigated by polarization dependent STXM measurements. The grain sizes were determined and compared to those obtained from atomic force microscopy (AFM) measurements. Statistical analysis of the grain orientation was correlated with the charge carrier mobility of the films, in which we observed an increase in the mobility with increasing grain size and decreasing surface roughness of the SAM. Published by Elsevier B.V.
C1 [Braeuer, Bjoern; Kukreja, Roopali] Stanford Univ, Stanford Inst Mat & Energy Sci, Stanford, CA 94305 USA.
[Virkar, Ajay; Akkerman, Hylke B.; Bao, Zhenan] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA.
[Tyliszczak, Tolek] Adv Light Source, Berkeley, CA 94720 USA.
[Fognini, Andreas] Swiss Fed Inst Technol, Solid State Phys Lab, CH-8093 Zurich, Switzerland.
RP Brauer, B (reprint author), Stanford Univ, Stanford Inst Mat & Energy Sci, Stanford, CA 94305 USA.
EM bjorn.brauer@gmail.com; zbao@stanford.edu
FU German Research Foundation (DFG); Funds of Chemical Industry for a
Liebig; Netherlands Organisation for Scientific Research (NWO); MRSEC
[DMR 0213618]; NSF Solid State Chemistry [DMR 0705687]; Office of
Science, Office of Basic Energy Sciences, of the US Department of Energy
[DE-AC02-05CH11231]
FX B.B. would like to thank the German Research Foundation (DFG) for a
postdoctoral- and the Funds of Chemical Industry for a
Liebig-scholarship. H.B.A. acknowledges the Netherlands Organisation for
Scientific Research (NWO) for support. A.V. and Z.B. thank the financial
support from the NSF sponsored MRSEC (DMR 0213618) and NSF Solid State
Chemistry (DMR 0705687). The Advanced Light Source 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.
NR 35
TC 14
Z9 14
U1 2
U2 35
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1566-1199
J9 ORG ELECTRON
JI Org. Electron.
PD NOV
PY 2011
VL 12
IS 11
BP 1936
EP 1942
DI 10.1016/j.orgel.2011.08.007
PG 7
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 832TL
UT WOS:000295830700029
ER
PT J
AU Abedrabbo, S
Lahlouh, B
Shet, S
Fiory, AT
AF Abedrabbo, S.
Lahlouh, B.
Shet, S.
Fiory, A. T.
TI Room-temperature silicon band-edge photoluminescence enhanced by
spin-coated sol-gel films
SO SCRIPTA MATERIALIA
LA English
DT Article
DE Photoluminescence; Thin films; Semiconductor silicon; Sol-gel materials
ID LIGHT-EMISSION; HEAT-TREATMENT; LUMINESCENCE; DEPOSITION; DIODE; LEDS
AB Photoluminescence is observed at room temperature from phonon-assisted band-to-band emission in Si (1.067 eV peak) using unpatterned bulk p-type silicon wafer samples that were spin-coated with Er-doped (6 at.%) silica-gel films (0.13 mu m) and vacuum annealed; the strongest emission was obtained at similar to 700 degrees C. Comparative study of annealing behavior indicates an efficiency enhancement of two orders of magnitude. Emission from Er3+ ions in the silica film is used to gauge relative emission strengths. Mechanisms for inducing emission from silicon utilizing stresses in sol-gel films are discussed. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Abedrabbo, S.; Fiory, A. T.] New Jersey Inst Technol, Dept Phys, Newark, NJ 07901 USA.
[Abedrabbo, S.; Lahlouh, B.] Univ Jordan, Dept Phys, Amman 11942, Jordan.
[Shet, S.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Abedrabbo, S (reprint author), New Jersey Inst Technol, Dept Phys, Newark, NJ 07901 USA.
EM sxa0215@yahoo.com
FU Deanship of Academic Research at the University of Jordan [1030]; Hamdi
Mango Center for Scientific Research (HMCSR); New Jersey Institute of
Technology; US National Renewable Energy Laboratory
FX Partial support by Deanship of Academic Research at the University of
Jordan, Project contract no. 1030 and Hamdi Mango Center for Scientific
Research (HMCSR), the New Jersey Institute of Technology, and the US
National Renewable Energy Laboratory, and encouragement and support of
N.M. Ravindra is gratefully acknowledged.
NR 26
TC 5
Z9 5
U1 3
U2 6
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6462
J9 SCRIPTA MATER
JI Scr. Mater.
PD NOV
PY 2011
VL 65
IS 9
BP 767
EP 770
DI 10.1016/j.scriptamat.2011.07.025
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 831XV
UT WOS:000295765300006
ER
PT J
AU Zhuo, MJ
Fu, EG
Yan, L
Wang, YQ
Zhang, YY
Dickerson, RM
Uberuaga, BP
Misra, A
Nastasi, M
Jia, QX
AF Zhuo, M. J.
Fu, E. G.
Yan, L.
Wang, Y. Q.
Zhang, Y. Y.
Dickerson, R. M.
Uberuaga, B. P.
Misra, A.
Nastasi, M.
Jia, Q. X.
TI Interface-enhanced defect absorption between epitaxial anatase TiO2 film
and single crystal SrTiO3
SO SCRIPTA MATERIALIA
LA English
DT Article
DE Transmission electron microscopy (TEM); Interface structure; Ion-beam
processing; Irradiation effect; Anatase TiO2 film
ID ION IRRADIATION; THIN-FILMS; OPTICAL-PROPERTIES; RADIATION-DAMAGE;
RUTILE; MICROSTRUCTURE; RECOVERY
AB The microstructural evolution of Ne-ion-irradiated anatase TiO2/SrTiO3 films was investigated. A defect denuded layer formed in the TiO2 film near the TiO2/SrTiO3 interface after irradiation. The accumulation of defects at the TiO2/SrTiO3 interface led to the formation of a continuous interfacial amorphous layer on SrTiO3. Both observations are attributed to the interaction of defects with the interface. Present results reveal that a hetero-epitaxial interface between two different oxides can act as an effective sink to absorb irradiation-induced defects. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
C1 [Zhuo, M. J.; Fu, E. G.; Yan, L.; Zhang, Y. Y.; Misra, A.; Nastasi, M.; Jia, Q. X.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
[Wang, Y. Q.; Dickerson, R. M.; Uberuaga, B. P.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
RP Zhuo, MJ (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, Ctr Integrated Nanotechnol, POB 1663, Los Alamos, NM 87545 USA.
EM mjzhuo@lanl.gov; blas@lanl.gov; qxjia@lanl.gov
RI Yan, Li/E-9152-2010; Misra, Amit/H-1087-2012; Dickerson,
Robert/C-9237-2013; Jia, Q. X./C-5194-2008
FU Center for Materials at Irradiation and Mechanical Extremes, an Energy
Frontier Research Center funded by the US Department of Energy (DOE),
Office of Science, Office of Basic Energy Sciences [2008LANL1026];
Center for Integrated Nanotechnologies, a US DOE, Office of Basic Energy
Sciences; US DOE [DE-AC52-06NA25396]
FX The authors wish to acknowledge K.E. Sickafus and T.E. Mitchell for
helpful discussions and thank K.E. Sickafus and J.A. Valdez for the help
with preparing the TEM foils. This work was supported as part of the
Center for Materials at Irradiation and Mechanical Extremes, an Energy
Frontier Research Center funded by the US Department of Energy (DOE),
Office of Science, Office of Basic Energy Sciences under Award Number
2008LANL1026. This work was performed, in part, at the Center for
Integrated Nanotechnologies, a US DOE, Office of Basic Energy Sciences
user facility. Los Alamos National Laboratory, an affirmative action
equal opportunity employer, is operated by Los Alamos National Security,
LLC, for the National Nuclear Security Administration of the US DOE
under contract DE-AC52-06NA25396.
NR 25
TC 14
Z9 14
U1 0
U2 22
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6462
J9 SCRIPTA MATER
JI Scr. Mater.
PD NOV
PY 2011
VL 65
IS 9
BP 807
EP 810
DI 10.1016/j.scriptamat.2011.07.037
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 831XV
UT WOS:000295765300016
ER
PT J
AU de Graaff, MA
Schadt, CW
Rula, K
Six, J
Schweitzer, JA
Classen, AT
AF de Graaff, Marie-Anne
Schadt, Christopher W.
Rula, Kelly
Six, Johan
Schweitzer, Jennifer A.
Classen, Aimee T.
TI Elevated CO2 and plant species diversity interact to slow root
decomposition
SO SOIL BIOLOGY & BIOCHEMISTRY
LA English
DT Article
DE Roots; Elevated CO2; Species diversity; Litter quality; Decomposition;
Carbon-13; Nitrogen mineralization
ID ATMOSPHERIC CARBON-DIOXIDE; OLD-FIELD ECOSYSTEM; LITTER DECOMPOSITION;
SOIL-MOISTURE; NITROGEN AVAILABILITY; WATER AVAILABILITY; GRASS-ROOTS;
LEAF-LITTER; COMMUNITY; QUALITY
AB Changes in plant species diversity can result in synergistic increases in decomposition rates, while elevated atmospheric CO2 can slow the decomposition rates; yet it remains unclear how diversity and changes in atmospheric CO2 may interact to alter root decomposition. To investigate how elevated CO2 interacts with changes in root-litter diversity to alter decomposition rates, we conducted a 120-day laboratory incubation. Roots from three species (Trifolium repens, Lespedeza cuneata, and Festuca pratense) grown under ambient or elevated CO2 were incubated individually or in combination in soils that were exposed to ambient or elevated CO2 for five years. Our experiment resulted in two main findings: (1) Roots from T. repens and L cuneata, both nitrogen (N) fixers, grown under elevated CO2 treatments had significantly slower decomposition rates than similar roots grown under ambient CO2 treatments; but the decomposition rate of F pratense roots (a non-N-fixing species) was similar regardless of CO2 treatment. (2) Roots of the three species grown under ambient CO2 and decomposed in combination with each other had faster decomposition rates than when they were decomposed as single species. However, roots of the three species grown under elevated CO2 had similar decomposition rates when they were incubated alone or in combination with other species. These data suggest that if elevated CO2 reduces the root decomposition rate of even a few species in the community, it may slow root decomposition of the entire plant community. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [de Graaff, Marie-Anne] Boise State Univ, Dept Biol Sci, Boise, ID 83725 USA.
[Schadt, Christopher W.; Rula, Kelly] Oak Ridge Natl Lab, Biosci Div, Mol Microbial Ecol Grp, Oak Ridge, TN 37831 USA.
[Six, Johan] Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA.
[Schweitzer, Jennifer A.; Classen, Aimee T.] Univ Tennessee Knoxville, Dept Ecol & Evolutionary Biol, Knoxville, TN USA.
RP de Graaff, MA (reprint author), Boise State Univ, Dept Biol Sci, 1910 Univ Dr, Boise, ID 83725 USA.
EM marie-annedegraaff@boisestate.edu
RI Classen, Aimee/C-4035-2008; Schadt, Christopher/B-7143-2008
OI Classen, Aimee/0000-0002-6741-3470; Schadt,
Christopher/0000-0001-8759-2448
FU U.S. Department of Energy, Office of Science, Biological and
Environmental Research
FX We thank David Harris, Charles Garten Jr., and Joanne Childs for
assisting with chemical analyses. Thanks to Paul Kardol for assisting
with root harvesting. Richard Norby and Jake Weltzin were integral in
establishing the OCCAM experiment and provided logistical support.
Research was sponsored by the U.S. Department of Energy, Office of
Science, Biological and Environmental Research Program, and work was
conducted in collaboration with Oak Ridge National Laboratory, which is
managed by UT-Battelle, LLC, for the U.S. Department of Energy.
NR 56
TC 11
Z9 11
U1 2
U2 53
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-0717
J9 SOIL BIOL BIOCHEM
JI Soil Biol. Biochem.
PD NOV
PY 2011
VL 43
IS 11
BP 2347
EP 2354
DI 10.1016/j.soilbio.2011.07.006
PG 8
WC Soil Science
SC Agriculture
GA 831QH
UT WOS:000295745700018
ER
PT J
AU Granier, C
Bessagnet, B
Bond, T
D'Angiola, A
van der Gon, HD
Frost, GJ
Heil, A
Kaiser, JW
Kinne, S
Klimont, Z
Kloster, S
Lamarque, JF
Liousse, C
Masui, T
Meleux, F
Mieville, A
Ohara, T
Raut, JC
Riahi, K
Schultz, MG
Smith, SJ
Thompson, A
van Aardenne, J
van der Werf, GR
van Vuuren, DP
AF Granier, Claire
Bessagnet, Bertrand
Bond, Tami
D'Angiola, Ariela
van der Gon, Hugo Denier
Frost, Gregory J.
Heil, Angelika
Kaiser, Johannes W.
Kinne, Stefan
Klimont, Zbigniew
Kloster, Silvia
Lamarque, Jean-Francois
Liousse, Catherine
Masui, Toshihiko
Meleux, Frederik
Mieville, Aude
Ohara, Toshimasa
Raut, Jean-Christophe
Riahi, Keywan
Schultz, Martin G.
Smith, Steven J.
Thompson, Allison
van Aardenne, John
van der Werf, Guido R.
van Vuuren, Detlef P.
TI Evolution of anthropogenic and biomass burning emissions of air
pollutants at global and regional scales during the 1980-2010 period
SO CLIMATIC CHANGE
LA English
DT Article
ID SATELLITE DATA; NOX EMISSIONS; CO EMISSIONS; FOSSIL-FUEL; INVENTORY;
TRENDS; AEROSOLS; MODEL; 20TH-CENTURY; ADJOINT
AB Several different inventories of global and regional anthropogenic and biomass burning emissions are assessed for the 1980-2010 period. The species considered in this study are carbon monoxide, nitrogen oxides, sulfur dioxide and black carbon. The inventories considered include the ACCMIP historical emissions developed in support of the simulations for the IPCC AR5 assessment. Emissions for 2005 and 2010 from the Representative Concentration Pathways (RCPs) are also included. Large discrepancies between the global and regional emissions are identified, which shows that there is still no consensus on the best estimates for surface emissions of atmospheric compounds. At the global scale, anthropogenic emissions of CO, NOx and SO2 show the best agreement for most years, although agreement does not necessarily mean that uncertainty is low. The agreement is low for BC emissions, particularly in the period prior to 2000. The best consensus is for NOx emissions for all periods and all regions, except for China, where emissions in 1980 and 1990 need to be better defined. Emissions of CO need better quantification in the USA and India for all periods; in Central Europe, the evolution of emissions during the past two decades needs to be better determined. The agreement between the different SO2 emissions datasets is rather good for the USA, but better quantification is needed elsewhere, particularly for Central Europe, India and China. The comparisons performed in this study show that the use of RCP8.5 for the extension of the ACCMIP inventory beyond 2000 is reasonable, until more global or regional estimates become available. Concerning biomass burning emissions, most inventories agree within 50-80%, depending on the year and season. The large differences between biomass burning inventories are due to differences in the estimates of burned areas from the different available products, as well as in the amount of biomass burned.
C1 [Granier, Claire; D'Angiola, Ariela; Raut, Jean-Christophe] UPMC Univ Paris 06, UMR8190, CNRS INSU, LATMOS IPSL, Paris, France.
[Granier, Claire; Frost, Gregory J.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Granier, Claire; Frost, Gregory J.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Granier, Claire; Kinne, Stefan; Kloster, Silvia] Max Planck Inst Meteorol, Hamburg, Germany.
[Bessagnet, Bertrand; Meleux, Frederik] INERIS, Verneuil En Halatte, France.
[Bond, Tami] Univ Illinois, Urbana, IL USA.
[van der Gon, Hugo Denier] TNO Built Environm & Geosci, Utrecht, Netherlands.
[Heil, Angelika; Schultz, Martin G.] Forschungszentrum Juelich, Julich, Germany.
[Kaiser, Johannes W.] European Ctr Medium Range Weather Forecasts, Reading RG2 9AX, Berks, England.
[Klimont, Zbigniew; Riahi, Keywan] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria.
[Lamarque, Jean-Francois] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Liousse, Catherine; Mieville, Aude] Lab Aerologie, Toulouse, France.
[Masui, Toshihiko; Ohara, Toshimasa] Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan.
[Smith, Steven J.; Thompson, Allison] Pacific NW Natl Lab, College Pk, MD USA.
[van Aardenne, John] European Environm Agcy, Copenhagen, Denmark.
[van der Werf, Guido R.] Vrije Univ Amsterdam, Amsterdam, Netherlands.
[van Vuuren, Detlef P.] Netherlands Environm Assessment Agcy, Bilthoven, Netherlands.
[van Vuuren, Detlef P.] Univ Utrecht, Utrecht, Netherlands.
RP Granier, C (reprint author), UPMC Univ Paris 06, UMR8190, CNRS INSU, LATMOS IPSL, Paris, France.
EM claire.granier@latmos.ipsl.fr
RI van Vuuren, Detlef/A-4764-2009; Heil, Angelika/J-7182-2012; Klimont,
Zbigniew/P-7641-2015; Raut, Jean-Christophe/G-3946-2016; van der Werf,
Guido/M-8260-2016; Bessagnet, Bertrand/O-2969-2016; Riahi,
Keywan/B-6426-2011; Schultz, Martin/I-9512-2012; Kaiser,
Johannes/A-7057-2012; Frost, Gregory/I-1958-2013; Bond,
Tami/A-1317-2013; Granier, Claire/D-5360-2013; Lamarque,
Jean-Francois/L-2313-2014; Manager, CSD Publications/B-2789-2015;
OI van Vuuren, Detlef/0000-0003-0398-2831; Heil,
Angelika/0000-0002-8768-5027; Klimont, Zbigniew/0000-0003-2630-198X; van
der Werf, Guido/0000-0001-9042-8630; Bessagnet,
Bertrand/0000-0003-2062-4681; Riahi, Keywan/0000-0001-7193-3498;
Schultz, Martin/0000-0003-3455-774X; Kaiser,
Johannes/0000-0003-3696-9123; Bond, Tami/0000-0001-5968-8928; Granier,
Claire/0000-0001-7344-7995; Lamarque, Jean-Francois/0000-0002-4225-5074;
Raut, Jean-Christophe/0000-0002-3552-2437
FU MACC European Union [218793, 212095, 265148]; FP7 ACCENT European
Network; National Science Foundation
FX The authors greatly acknowledge the support of the MACC European Union's
Seventh Framework Programme (FP7/2007-2013) under Grant Agreement no.
218793, as well as the support of the FP7 CityZen project, under Grant
Agreement no. 212095 and the FP7 PEGASOS project, under Grant Agreement
265148. We also thank the FP7 ACCENT European Network, which provided
funding for meetings to develop the ACCMIP emissions dataset. The
National Center for Atmospheric Research is operated by the University
Corporation for Atmospheric Research under sponsorship of the National
Science Foundation. Any opinions, findings and conclusions or
recommendations expressed in the publication are those of the author(s)
and do not necessarily reflect the views of the National Science
Foundation. The authors would like to thank Josh Drukenbrod from the US
EPA for providing the most recent details on US emissions.
NR 65
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U2 122
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0165-0009
EI 1573-1480
J9 CLIMATIC CHANGE
JI Clim. Change
PD NOV
PY 2011
VL 109
IS 1-2
SI SI
BP 163
EP 190
DI 10.1007/s10584-011-0154-1
PG 28
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 852IE
UT WOS:000297350200008
ER
PT J
AU Moniz, E
AF Moniz, Ernest
TI Why We Still Need Nuclear Power Making Clean Energy Safe and Affordable
SO FOREIGN AFFAIRS
LA English
DT Article
AB The world cannot let the March disaster at Japan's Fukushima power plant scare it into forgoing the benefits of nuclear energy-a cheap, reliable, and safe source of electricity. Still, writes a former U.S. undersecretary of energy, the United States does need to update its safety standards and reform its handling of nuclear waste.
C1 MIT, Energy Initiat, Cambridge, MA 02139 USA.
[Moniz, Ernest] US DOE, Washington, DC 20585 USA.
RP Moniz, E (reprint author), MIT, Energy Initiat, Cambridge, MA 02139 USA.
NR 0
TC 0
Z9 0
U1 2
U2 24
PU COUNCIL FOREIGN RELAT IONS INC
PI NEW YORK
PA HAROLD PRATT HOUSE, 58 E 68TH ST, NEW YORK, NY 10065 USA
SN 0015-7120
J9 FOREIGN AFF
JI Foreign Aff.
PD NOV-DEC
PY 2011
VL 90
IS 6
BP 83
EP +
PG 15
WC International Relations
SC International Relations
GA V28WU
UT WOS:000208711700008
ER
PT J
AU Kohl, M
AF Kohl, Michael
TI Elastic form factor experiments: a serial story
SO HYPERFINE INTERACTIONS
LA English
DT Proceedings Paper
CT 4th International Workshop on From Parity Violation to Hadronic
Structure and More (PAVI)
CY JUN 22-26, 2009
CL Bar Harbor, ME
DE Nucleon; Proton; Neutron; Form factor; Elastic
ID ELECTRON-PROTON SCATTERING; SQUARED 4-MOMENTUM TRANSFERS; POLARIZATION
TRANSFER; MOMENTUM-TRANSFER; DEUTERON SCATTERING; CROSS-SECTIONS;
NEUTRON; (GEV/C)(2); RATIO; FM-2
AB This paper provides an experimental overview of elastic nucleon form factors with a summary of current and future efforts.
C1 [Kohl, Michael] Hampton Univ, Hampton, VA 23668 USA.
[Kohl, Michael] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
RP Kohl, M (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
EM kohlm@jlab.org
NR 98
TC 1
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U1 0
U2 1
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0304-3843
J9 HYPERFINE INTERACT
JI Hyperfine Interact.
PD NOV
PY 2011
VL 201
IS 1-3
BP 1
EP 6
DI 10.1007/s10751-011-0283-y
PG 6
WC Physics, Atomic, Molecular & Chemical; Physics, Condensed Matter;
Physics, Nuclear
SC Physics
GA 070BG
UT WOS:000313480200001
ER
PT J
AU Mammei, J
AF Mammei, Juliette
CA G0 Collaboration
TI Transverse asymmetries at backward angles in G0 Preliminary results for
the proton and neutron
SO HYPERFINE INTERACTIONS
LA English
DT Proceedings Paper
CT 4th International Workshop on From Parity Violation to Hadronic
Structure and More (PAVI)
CY JUN 22-26, 2009
CL Bar Harbor, ME
DE Transverse; Single-spin asymmetry; G0; Backward angle; 2 photon exchange
AB The backward angle phase of the G0 experiment has measured the beam-normal single-spin asymmetries in elastic scattering of transversely polarized electrons from the proton and made the first measurement in quasi-elastic scattering in deuterium at backward angles for Q(2) = 0.22 GeV2/c(2) and 0.63 GeV2/c(2). The measurements were made at a lab scattering angle of 108 degrees at beam energies of 362 MeV and 687 MeV respectively. Preliminary results for the proton are consistent with including pi N states in the calculation of the asymmetry in the resonance region. A preliminary estimate of the beam-normal single-spin asymmetry for the scattering from the neutron is made using a quasi-static deuterium model.
C1 [Mammei, Juliette] Jefferson Lab, Newport News, VA 23606 USA.
RP Mammei, J (reprint author), Jefferson Lab, Newport News, VA 23606 USA.
EM crowder@jlab.org
NR 6
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0304-3843
J9 HYPERFINE INTERACT
JI Hyperfine Interact.
PD NOV
PY 2011
VL 201
IS 1-3
BP 19
EP 23
DI 10.1007/s10751-011-0286-8
PG 5
WC Physics, Atomic, Molecular & Chemical; Physics, Condensed Matter;
Physics, Nuclear
SC Physics
GA 070BG
UT WOS:000313480200004
ER
PT J
AU Michaels, R
AF Michaels, R.
TI The Lead Radius Experiment PREX
SO HYPERFINE INTERACTIONS
LA English
DT Proceedings Paper
CT 4th International Workshop on From Parity Violation to Hadronic
Structure and More (PAVI)
CY JUN 22-26, 2009
CL Bar Harbor, ME
DE Mass and neutron distributions; Elastic electron scattering; Parity
Violation
ID ELASTIC ELECTRON-SCATTERING; EQUATION-OF-STATE; NEUTRON-STARS;
PARAMETERS
AB The Lead Radius Experiment PREX will run in Spring of 2010. The experiment measures the parity-violating asymmetry in the elastic scattering of polarized electrons from a lead nucleus at an energy of 1.05 GeV and a scattering angle of 5 degrees. The Z(0) boson couples mainly to neutrons, and provides a clean measurement of R-n with a projected experimental precision of +/- 1%. The measurement is a fundamental test of nuclear theory and pins down the density-dependence of the symmetry energy of neutron rich nuclear matter which has impacts on neutron star structure, heavy ion collisions, and atomic parity violation experiments. Recent developments in the experiment are described.
C1 Jefferson Lab, Newport News, VA USA.
RP Michaels, R (reprint author), Jefferson Lab, 12000 Jefferson Ave, Newport News, VA USA.
EM rom@jlab.org
NR 26
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U1 0
U2 0
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0304-3843
J9 HYPERFINE INTERACT
JI Hyperfine Interact.
PD NOV
PY 2011
VL 201
IS 1-3
BP 25
EP 29
DI 10.1007/s10751-011-0287-7
PG 5
WC Physics, Atomic, Molecular & Chemical; Physics, Condensed Matter;
Physics, Nuclear
SC Physics
GA 070BG
UT WOS:000313480200005
ER
PT J
AU Smith, GR
AF Smith, Gregory R.
TI High power cryogenic targets
SO HYPERFINE INTERACTIONS
LA English
DT Proceedings Paper
CT 4th International Workshop on From Parity Violation to Hadronic
Structure and More (PAVI)
CY JUN 22-26, 2009
CL Bar Harbor, ME
DE Cryogenic LH2 target
AB The development of high power cryogenic targets for use in parity violating electron scattering has been a crucial ingredient in the success of those experiments. As we chase the precision frontier, the demands and requirements for these targets have grown accordingly. We discuss the state of the art, and describe recent developments and strategies in the design of the next generation of these targets.
C1 Jefferson Lab, Newport News, VA 23606 USA.
RP Smith, GR (reprint author), Jefferson Lab, Suite 6,12000 Jefferson Ave, Newport News, VA 23606 USA.
EM smithg@jlab.org
NR 2
TC 0
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U1 0
U2 0
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0304-3843
J9 HYPERFINE INTERACT
JI Hyperfine Interact.
PD NOV
PY 2011
VL 201
IS 1-3
BP 57
EP 62
DI 10.1007/s10751-011-0292-x
PG 6
WC Physics, Atomic, Molecular & Chemical; Physics, Condensed Matter;
Physics, Nuclear
SC Physics
GA 070BG
UT WOS:000313480200010
ER
PT J
AU Grames, J
Hansknect, J
Poelker, M
Suleiman, R
AF Grames, J.
Hansknect, J.
Poelker, M.
Suleiman, R.
TI Jefferson Lab injector development for next generation parity violation
experiments
SO HYPERFINE INTERACTIONS
LA English
DT Proceedings Paper
CT 4th International Workshop on From Parity Violation to Hadronic
Structure and More (PAVI)
CY JUN 22-26, 2009
CL Bar Harbor, ME
DE Parity violation; Inverted Photogun; Wien filter; Helicity reversal;
Position feedback; Pockels cell
AB To meet the challenging requirements of next generation parity violation experiments at Jefferson Lab, the Center for Injectors and Sources is working on improving the parity-quality of the electron beam. These improvements include new electron photogun design and fast helicity reversal of the Pockels Cell. We proposed and designed a new scheme for slow helicity reversal using a Wien Filter and two Solenoids. This slow reversal complements the insertable half-wave plate reversal of the laser-light polarization by reversing the electron beam polarization at the injector while maintaining a constant accelerator configuration. For position feedback, fast air-core magnets located in the injector were commissioned and a new scheme for charge feedback is planned.
C1 [Grames, J.; Hansknect, J.; Poelker, M.; Suleiman, R.] Jefferson Lab, 12050 Jefferson Ave,Suite 500, Newport News, VA 23606 USA.
RP Suleiman, R (reprint author), Jefferson Lab, 12050 Jefferson Ave,Suite 500, Newport News, VA 23606 USA.
EM suleiman@jlab.org
FU U. S. DOE [DEAC05- 84ER40150]
FX Authored by Jefferson Science Associates under U. S. DOE Contract No.
DEAC05- 84ER40150.
NR 4
TC 0
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U1 0
U2 0
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0304-3843
J9 HYPERFINE INTERACT
JI Hyperfine Interact.
PD NOV
PY 2011
VL 201
IS 1-3
BP 69
EP 71
DI 10.1007/s10751-011-0294-8
PG 3
WC Physics, Atomic, Molecular & Chemical; Physics, Condensed Matter;
Physics, Nuclear
SC Physics
GA 070BG
UT WOS:000313480200012
ER
PT J
AU Dunford, RW
Holt, RJ
AF Dunford, R. W.
Holt, R. J.
TI Parity nonconservation in hydrogen
SO HYPERFINE INTERACTIONS
LA English
DT Proceedings Paper
CT 4th International Workshop on From Parity Violation to Hadronic
Structure and More (PAVI)
CY JUN 22-26, 2009
CL Bar Harbor, ME
DE Atomic parity violation; Weak neutral currents; Metastable hydrogen
ID ATOMIC THALLIUM; SCATTERING; VIOLATION; PHYSICS
AB We discuss the prospects for parity violation experiments in atomic hydrogen and deuterium to contribute to testing the Standard Model (SM). We find that, if parity experiments in hydrogen can be done, they remain highly desirable because there is negligible atomic-physics uncertainty and low energy tests of weak neutral current interactions are needed to probe for new physics beyond the SM. Analysis of a generic APV experiment in deuterium indicates that a 0.3% measurement of C-1D requires development of a slow (77K) metastable beam of approximate to 5 x 10(14)D(2S)s(-1) per hyperfine component. The advent of UV radiation from free electron laser (FEL) technology could allow production of such a beam.
C1 [Dunford, R. W.; Holt, R. J.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Dunford, RW (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM dunford@anl.gov
RI Holt, Roy/E-5803-2011
NR 20
TC 1
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U1 0
U2 2
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0304-3843
J9 HYPERFINE INTERACT
JI Hyperfine Interact.
PD NOV
PY 2011
VL 200
IS 1-3
BP 45
EP 49
DI 10.1007/s10751-011-0278-8
PG 5
WC Physics, Atomic, Molecular & Chemical; Physics, Condensed Matter;
Physics, Nuclear
SC Physics
GA 069FT
UT WOS:000313421400011
ER
PT J
AU Chatrchyan, S
Khachatryan, V
Sirunyan, AM
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Ero, J
Fabjan, C
Friedl, M
Fruhwirth, R
Ghete, VM
Hammer, J
Hansel, S
Hoch, M
Hormann, N
Hrubec, J
Jeitler, M
Kiesenhofer, W
Krammer, M
Liko, D
Mikulec, I
Pernicka, M
Rahbaran, B
Rohringer, H
Schofbeck, R
Strauss, J
Taurok, A
Teischinger, F
Wagner, P
Waltenberger, W
Walzel, G
Widl, E
Wulz, CE
Mossolov, V
Shumeiko, N
Suarez Gonzalez, J
Bansal, S
Benucci, L
De Wolf, EA
Janssen, X
Maes, T
Mucibello, L
Ochesanu, S
Roland, B
Rougny, R
Selvaggi, M
Van Haevermaet, H
Van Mechelen, P
Van Remortel, N
Blekman, F
Blyweert, S
D'Hondt, J
Devroede, O
Gonzalez Suarez, R
Kalogeropoulos, A
Maes, M
Van Doninck, W
Van Mulders, P
Van Onsem, GP
Villella, I
Charaf, O
Clerbaux, B
De Lentdecker, G
Dero, V
Gay, APR
Hammad, GH
Hreus, T
Marage, PE
Raval, A
Thomas, L
Vander Velde, C
Vanlaer, P
Adler, V
Cimmino, A
Costantini, S
Grunewald, M
Klein, B
Lellouch, J
Marinov, A
Mccartin, J
Ryckbosch, D
Thyssen, F
Tytgat, M
Vanelderen, L
Verwilligen, P
Walsh, S
Zaganidis, N
Basegmez, S
Bruno, G
Caudron, J
Ceard, L
Gil, EC
De Jeneret, JD
Delaere, C
Favart, D
Giammanco, A
Gregoire, G
Hollar, J
Lemaitre, V
Liao, J
Militaru, O
Nuttens, C
Ovyn, S
Pagano, D
Pin, A
Piotrzkowski, K
Schul, N
Beliy, N
Caebergs, T
Daubie, E
Alves, GA
Brito, L
Damiao, DD
Pol, ME
Souza, MHG
Alda, WL
Carvalho, W
Da Costa, EM
Martins, CD
De Souza, SF
Mundim, L
Nogima, H
Oguri, V
Da Silva, WLP
Santoro, A
Do Amaral, SMS
Sznajder, A
Bernardes, CA
Dias, FA
Costa, TD
Tomei, TRFP
Gregores, EM
Lagana, C
Marinho, F
Mercadante, PG
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CA CMS Collaboration
TI Determination of jet energy calibration and transverse momentum
resolution in CMS
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Si microstrip and pad detectors; Calorimeter methods; Detector modelling
and simulations I (interaction of radiation with matter, interaction of
photons with matter, interaction of hadrons with matter, etc)
ID HADRON-COLLISIONS; ALGORITHM
AB Measurements of the jet energy calibration and transverse momentum resolution in CMS are presented, performed with a data sample collected in proton-proton collisions at a centre-of-mass energy of 7TeV, corresponding to an integrated luminosity of 36p(-1). The transverse momentum balance in dijet and gamma/Z+jets events is used to measure the jet energy response in the CMS detector, as well as the transverse momentum resolution. The results are presented for three different methods to reconstruct jets: a calorimeter-based approach, the "Jet-Plus-Track" approach, which improves the measurement of calorimeter jets by exploiting the associated tracks, and the "Particle Flow" approach, which attempts to reconstruct individually each particle in the event, prior to the jet clustering, based on information from all relevant subdetectors.
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[Blekman, F.; Blyweert, S.; D'Hondt, J.; Devroede, O.; Gonzalez Suarez, R.; Kalogeropoulos, A.; Maes, M.; Van Doninck, W.; Van Mulders, P.; Van Onsem, G. P.; Villella, I.] Vrije Universiteit Brussel, Brussels, Belgium.
[Charaf, O.; Clerbaux, B.; De Lentdecker, G.; Dero, V.; Gay, A. P. R.; Hammad, G. H.; Hreus, T.; Marage, P. E.; Raval, A.; Thomas, L.; Vander Velde, C.; Vanlaer, P.] Univ Libre Brussels, Brussels, Belgium.
[Adler, V.; Cimmino, A.; Costantini, S.; Grunewald, M.; Klein, B.; Lellouch, J.; Marinov, A.; Mccartin, J.; Ryckbosch, D.; Thyssen, F.; Tytgat, M.; Vanelderen, L.; Verwilligen, P.; Walsh, S.; Zaganidis, N.] Univ Ghent, Ghent, Belgium.
[Basegmez, S.; Bruno, G.; Caudron, J.; Ceard, L.; Cortina Gil, E.; De Jeneret, J. D.; Delaere, C.; Favart, D.; Giammanco, A.; Gregoire, G.; Hollar, J.; Lemaitre, V.; Liao, J.; Militaru, O.; Nuttens, C.; Ovyn, S.; Pagano, D.; Pin, A.; Piotrzkowski, K.; Schul, N.] Catholic Univ Louvain, B-3000 Louvain, Belgium.
[Beliy, N.; Caebergs, T.; Daubie, E.] Univ Mons, B-7000 Mons, Belgium.
[Alves, G. A.; Brito, L.; Damiao, D. De Jesus; Pol, M. E.; Souza, M. H. G.] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.
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[Banzuzi, K.; Karjalainen, A.; Korpela, A.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland.
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[Lomidze, D.] Tbilisi State Univ, Inst High Energy Phys & Informatizat, Tbilisi, Rep of Georgia.
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[Ata, M.; Dietz-Laursonn, E.; Erdmann, M.; Hebbeker, T.; Heidemann, C.; Hinzmann, A.; Hoepfner, K.; Klimkovich, T.; Klingebiel, D.; Kreuzer, P.; Lanske, D.; Lingemann, J.; Magass, C.; Merschmeyer, M.; Meyer, A.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.] Rhein Westfal TH Aachen, Inst Phys A 3, Aachen, Germany.
[Bontenackels, M.; Davids, M.; Duda, M.; Flugge, G.; Geenen, H.; Giffels, M.; Ahmad, W. Haj; Heydhausen, D.; Hoehle, F.; Kargoll, B.; Kress, T.; Kuessel, Y.; Linn, A.; Nowack, A.; Perchalla, L.; Pooth, O.; Rennefeld, J.; Sauerland, P.; Stahl, A.; Tornier, D.; Zoeller, M. H.] Rhein Westfal TH Aachen, Inst Phys B 3, Aachen, Germany.
[Martin, M. Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Bethani, A.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Hauk, J.; Jung, H.; Kasemann, M.; Katkov, I.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kramer, M.; Krucker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I. A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Petrukhin, A.; Pitzl, D.; Raspereza, A.; Rosin, M.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Spiridonov, A.; Stein, M.; Tomaszewska, J.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany.
[Autermann, C.; Blobel, V.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Gorner, M.; Hermanns, T.; Kaschube, K.; Kaussen, G.; Kirschenmann, H.; Klanner, R.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schlieckau, E.; Schroder, M.; Schum, T.; Stadie, H.; Steinbruck, G.; Thomsen, J.] Univ Hamburg, Hamburg, Germany.
[Barth, C.; Bauer, J.; Berger, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Komaragiri, J. R.; Kuhr, T.; Martschei, D.; Mueller, S.; Muller, T.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Ratnikova, N.; Renz, M.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Weiler, T.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Inst Expt Kernphys, Karlsruhe, Germany.
[Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Ntomari, E.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece.
[Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Saoulidou, N.; Stiliaris, E.; Sphicas, P.] Univ Athens, GR-10679 Athens, Greece.
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[Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary.
[Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary.
[Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, A. P.; Singh, J.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India.
[Ahuja, S.; Choudhary, B. C.; Gupta, P.; Kumar, A.; Kumar, A.; Naimuddin, M.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India.
[Banerjee, S.; Bhattacharya, S.; Dutta, S.; Gomber, B.; Jain, S.; Jain, S.; Khurana, R.; Sarkar, S.] Saha Inst Nucl Phys, Kolkata, W Bengal, India.
[Choudhury, R. K.; Dutta, D.; Kailas, S.; Kumar, V.; Mehta, P.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India.
[Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Bombay, Maharashtra, India.
[Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res HECR, Bombay, Maharashtra, India.
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[Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippisa, N.; De Palma, M.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputia, S.; Zito, G.] INFN Sez Bari, Bari, Italy.
[Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputia, S.] Univ Bari, Bari, Italy.
[Creanza, D.; De Filippisa, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy.
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[Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Masetti, G.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy.
[Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Potenza, R.; Tricomi, A.; Tuve, C.] INFN Sez Catania, Catania, Italy.
[Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Potenza, R.; Tricomi, A.; Tuve, C.] Univ Catania, Catania, Italy.
[Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Gonzi, S.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] INFN Sez Firenze, Florence, Italy.
[Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gonzi, S.; Lenzi, P.] Univ Florence, Florence, Italy.
[Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] INFN Lab Nazl Frascati, Frascati, Italy.
[Fabbricatore, P.; Musenich, R.] INFN Sez Genova, Genoa, Italy.
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[Benaglia, A.; De Guio, F.; Di Matteo, L.; Gennai, S.; Ghezzi, A.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli] Univ Milano Bicocca, Milan, Italy.
[Buontempo, S.; Montoya, C. A. Carrillo; Cavallo, N.; De Cosa, A.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Paolucci, P.] INFN Sez Napoli, Naples, Italy.
[De Cosa, A.; Merola, M.] Univ Naples Federico II, Naples, Italy.
[Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; Dorigo, T.; Dosselli, U.; Fanzago, F.; Gasparini, F.; Gasparini, U.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Nespolo, M; Perrozzi, L; Pozzobon, N; Ronchese, P; Simonetto, F; Torassa, E; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] INFN Sez Padova, Padua, Italy.
[Bellan, P.; Bisello, D.; Carlin, R.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N; Ronchese, P; Simonetto, F; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy.
[Lazzizzera, I.] Univ Trent, Padua, Italy.
[Baesso, P.; Berzano, U.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] INFN Sez Pavia, Pavia, Italy.
[Baesso, P.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy.
[Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.; Pioppi, M.] INFN Sez Perugia, Perugia, Italy.
[Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.] Univ Perugia, I-06100 Perugia, Italy.
[Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] INFN Sez Pisa, Pisa, Italy.
[Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy.
[Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy.
[Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Nourbakhsh, S.; Organtini, G.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.] INFN Sez Roma, Rome, Italy.
[Barone, L.; Del Re, D.; Di Marco, E.; Franci, D.; Longo, E.; Organtini, G.; Pandolfi, F.; Rahatlou, S.] Univ Roma La Sapienza, Rome, Italy.
[Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Potenza, A.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Pereira, A. Vilela] INFN Sezione Torino, Turin, Italy.
[Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Pelliccioni, M.; Potenza, A.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.] Univ Turin, Turin, Italy.
[Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy.
[Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] INFN Sez Trieste, Trieste, Italy.
[Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy.
[Heo, S. G.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea.
[Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D. C.; Son, T.] Kyungpook Natl Univ, Taegu, South Korea.
[Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea.
[Choi, S.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Sim, K. S.] Korea Univ, Seoul, South Korea.
[Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea.
[Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Lee, B.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea.
[Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Polujanskas, M.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania.
[Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de La Cruz, I.; Lopez-Fernandez, R.; Villalba, R. Magana; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City, DF, Mexico.
[Moreno, S. C.; Valencia, F. V.] Univ Iberoamer, Mexico City, DF, Mexico.
[Ibarguen, H. A. Salazar] Benemerita Univ Autonoma Puebla, Puebla, Mexico.
[Linares, E. Casimiro; Pineda, A. M.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico.
[Krofcheck, D.; Tam, J.] Univ Auckland, Auckland, New Zealand.
[Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch, New Zealand.
[Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khalid, S.; Khan, W. A.; Khurshid, T.; Qazi, S.; Shah, M. A.; Shoaib, M.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan.
[Brona, G.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland.
[Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, Warsaw, Poland.
[Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Parracho, P. G. Ferreira; Musella, P.; Nayak, A.; Ribeiro, P. Q.; Seixas, J.; Varela, J.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal.
[Afanasiev, S.; Bunin, P.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Konoplyanikov, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia.
[Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.; Vorobyev, An.] Petersburg Nucl Phys Inst, St Petersburg, Russia.
[Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.] Inst Nucl Res, Moscow, Russia.
[Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Krokhotin, A.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow, Russia.
[Belyaev, A.; Boos, E.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia.
[Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow, Russia.
[Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia.
[Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia.
[Djordjevic, M.; Milosevic, J.; Milenovic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia.
[Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Llatas, M. Chamizo; Colino, N.; De La Cruz, B.; Peris, A. Delgado; Pardos, C. Diez; Vazquez, D. Dominguez; Bedoya, C. Fernandez; Ramos, J. P. Fernandez; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Lopez, O. Gonzalez; Lopez, S. Goy; Hernandez, J. M.; Josa, M. I.; Merino, G.; Pelayo, J. Puerta; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] CIEMAT, Madrid, Spain.
[Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain.
[Cuevas, J.; Menendez, J. Fernandez; Folgueras, S.; Caballero, I. Gonzalez; Iglesias, L. Lloret; J. M. Vizan] Univ Oviedo, Oviedo, Spain.
[Cifuentes, J. A. Brochero; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Campderros, J. Duarte; Fernandez, M.; Gomez, G.; Sanchez, J. Gonzalez; Jorda, C.; Pardo, P. Lobelle; Virto, A. Lopez; Marco, J.; Marco, R.; Rivero, C. Martinez; Matorras, F.; Sanchez, F. J. Munoz; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sanudo, M. Sobron; Vila, I.; Cortabitarte, R. Vilar] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, Santander, Spain.
[Jung, H.; Chiorboli, M.; Tropiano, A.; De Guio, F.; Gennai, S.; Montoya, C. A. Carrillo; Iorio, A. O. M.; Nespolo, M; Perrozzi, L; Lucaroni, A.; Taroni, S.; Boccali, T.; Tonelli, G.; Venturi, A.; Grassi, M.; Pandolfi, F.; Rovelli, C.; Botta, C.; Graziano, A.; Gallinaro, M.; Pela, J.; Kossov, M.; Grishin, V.] CERN, European Org Nucl Res, Geneva, Switzerland.
[Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Konig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Caminada, L.; Marchica, C.; Nageli, C.] Paul Scherrer Inst, Villigen, Switzerland.
[Bani, L.; Bortignon, P.; Casal, B.; Chanon, N.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Hintz, W.; Lecomte, P.; Lustermann, W.; del Arbol, P. Martinez Ruiz; Moortgat, F.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.] Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland.
[Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Otiougova, P.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland.
[Chang, Y. H.; Chen, K. H.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Volpe, R.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli, Taiwan.
[Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W.-S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R.-S.; Shiu, J. G.; Tzeng, Y. M.; Wan, X.; Wang, M.] Natl Taiwan Univ NTU, Taipei, Taiwan.
[Adiguzel, A.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Hos, I.; Kangal, E. E.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Polatoz, A.; Uzun, D.; Vergili, L. N.; Vergili, M.] Cukurova Univ, Adana, Turkey.
[Akin, I. V.; Aliev, T.; Bilin, B.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yalvac, M.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, Ankara, Turkey.
[Deliomeroglu, M.; Guelmez, E.; Isildak, B.; Oezbek, M.] Bogazici Univ, Istanbul, Turkey.
[Levchuk, L.] Kharkov Inst & Phys Technol, Natl Sci Ctr, Kharkov, Ukraine.
[Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.] Univ Bristol, Bristol, Avon, England.
[Newbold, D. M.; Bell, K. W.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot, Oxon, England.
[Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; MacEvoy, B. C.; Magnan, A.-M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Raymond, D. M.; Rogerson, S.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Wardrope, D.; Whyntie, T.] Imperial Coll, London, England.
[Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England.
[Hatakeyama, K.; Liu, H.] Baylor Univ, Waco, TX 76798 USA.
[Henderson, C.] Univ Alabama, Tuscaloosa, AL 35487 USA.
[Bose, T.; Jarrin, E. Carrera; Fantasia, C.; Heister, A.; St. John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA.
[Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Luk, M.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA.
[Breedon, R.; Breto, G.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Rutherford, B.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif, Davis, CA USA.
Univ Calif Los Angeles, Los Angeles, CA 90024 USA.
[Babb, J.; Chandra, A.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Liu, H.; Long, O. R.; Luthra, A.; Nguyen, H.; Paramesvaran, S.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif, Riverside, CA USA.
[Andrews, W.; Branson, J. G.; Cerati, G. B.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Sudano, E.; Tadel, M.; Tu, Y.; Vartak, A.; Wuerthwein, F.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA USA.
[Dubinin, M.; Spiropulu, M.; Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Shin, K.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA USA.
[Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado Boulder, Boulder, CO 80309 USA.
[Agostino, L.; Alexander, J.; Chatterjee, A.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Henriksson, K.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Liu, Y.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Saelim, M.; Salvati, E.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY 14853 USA.
[Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT USA.
[Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Cooper, W.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Pivarski, J.; Pordes, R.; Prokofyev, O.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Gomez, J. Piedra; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Das, S.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Hugon, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Low, J. F.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Prescott, C.; Remington, R.; Rinkevicius, A.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Snowball, M.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL 32611 USA.
[Gaultney, V.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA.
[Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA.
[Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL USA.
[Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Kunde, G. J.; Lacroix, F.; Malek, M.; O'Brien, C.; Silkworth, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] UIC, Chicago, IL USA.
[Ozturk, S.; Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J.-P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA 52242 USA.
[Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD 21218 USA.
[Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Iii, R. P. Kenny; Murray, M.; Noonan, D.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA.
[Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA.
[Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA.
[Alver, B.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y.-J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Velicanu, D.; Wenger, E. A.; Wolf, R.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA.
[Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Franzoni, G.; Gude, A.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Pastika, N.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.; Tambe, N.] Univ Minnesota, Minneapolis, MN 55455 USA.
[Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA.
[Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Jindal, P.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68583 USA.
[Baur, U.; Godshalk, A.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Reucroft, S.; Swain, J.; Trocino, D.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA USA.
[Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL 60208 USA.
[Antonelli, L.; Berry, D.; Brinkerhoff, A.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Vuosalo, C.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA.
[Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Safdi, B.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA.
[Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR 00936 USA.
[Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; De Mattia, M.; Everett, A.; Garfinkel, A. F.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA.
[Parashar, N.] Purdue Univ Calumet, Hammond, LA USA.
[Adair, A.; Boulahouache, C.; Ecklund, K. M.; Geurts, F. J. M.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA.
[Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Sakumoto, W.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Bhatti, A.; Ciesielski, R.; Demortier, L.; Goulianos, K.; Lungu, G.; Malik, S.; Mesropian, C.] Rockefeller Univ, New York, NY USA.
[Arora, S.; Atramentov, O.; Barker, A.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Richards, A.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ 08855 USA.
[Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN 37996 USA.
[Eusebi, R.; Flanagan, W.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Osipenkov, I.; Pakhotin, Y.; Safonov, A.; Sengupta, S.; Suarez, I.; Tatarinov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX 77843 USA.
[Akchurin, N.; Bardak, C.; Damgov, J.; Dudero, P. R.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Libeiro, T.; Mane, P.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA.
[Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Issah, M.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sheldon, P.; Snook, B.; Tuo, S.; Velkovska, J.] Vanderbilt Univ, Nashville, TN USA.
[Arenton, M. W.; Balazs, M.; Boutle, S.; Cox, B.; Francis, B.; Goodell, J.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Yohay, R.] Univ Virginia, Charlottesville, VA 22903 USA.
[Gollapinni, S.; Harr, R.; Karchin, P. E.; Don, C. Kottachchi Kankanamge; Lamichhane, P.; Mattson, M.; Milstene, C.; Sakharov, A.] Wayne State Univ, Detroit, MI 48202 USA.
[Anderson, M.; Bachtis, M.; Belknap, D.; Bellinger, J. N.; Carlsmith, D.; Dasu, S.; Efron, J.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Herve, A.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Loveless, R.; Mohapatra, A.; Ojalvo, I.; Reeder, D.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.; Weinberg, M.] Univ Wisconsin, Madison, WI 53706 USA.
[Hajdu, C.; Sikler, F.; Mohanty, A. K.; De Filippisa, N.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Benedetti, D.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Bona, M.; Breuker, H.; Breuker, K.; Camporesi, T.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; Cure, B.; D'Enterria, D.; De Roeck, A.; Di Guida, S.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Hartl, C.; Harvey, J.; Hegeman, J.; Hegner, B.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Lecoq, P.; Lourenco, C.; Maki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Maurisset, A.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Cortezon, E. Palencia; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimia, M.; Piparo, D.; Polese, G.; Racz, A.; Reece, W.; Antunes, J. Rodrigues; Rommerskirchen, T.; Rovere, M.; Sakulin, H.; Schafer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Silva, P.; Simon, M.; Stoye, M.; Tropea, P.; Tsirou, A.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.] CERN, European Org Nucl Res, Geneva, Switzerland.
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Inst Theoret & Expt Phys, Moscow, Russia.
Paul Scherrer Inst, Villigen, Switzerland.
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RP Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan, Armenia.
RI Menasce, Dario Livio/A-2168-2016; Fassi, Farida/F-3571-2016; Tuominen,
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Belyaev, Alexander/0000-0002-1733-4408; Trocsanyi,
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Montanari, Alessandro/0000-0003-2748-6373; Cerrada,
Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330;
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Vogel, Helmut/0000-0002-6109-3023; Marinho,
Franciole/0000-0002-7327-0349; Ferguson, Thomas/0000-0001-5822-3731;
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Andrew/0000-0002-9270-5643; Hill, Christopher/0000-0003-0059-0779;
Troitsky, Sergey/0000-0001-6917-6600; Codispoti,
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Mundim, Luiz/0000-0001-9964-7805; Tinoco Mendes, Andre
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FU Austrian Federal Ministry of Science and Research; Belgium Fonds de la
Recherche Scientifique; Fonds voor Wetenschappelijk Onderzoek; CNPq;
CAPES; FAPERJ; FAPESP; Bulgarian Ministry of Education and Science;
CERN; Chinese Academy of Sciences; Ministry of Science and Technology;
National Natural Science Foundation of China; Colombian Funding Agency
(COLCIENCIAS); Croatian Ministry of Science, Education and Sport;
Research Promotion Foundation, Cyprus; Estonian Academy of Sciences;
NICPB; Academy of Finland; Finnish Ministry of Education and Culture;
Helsinki Institute of Physics; Institut National de Physique Nucleaire
et de Physique des Particules / CNRS; Commissariat a l'Energie Atomique
et aux Energies Alternatives / CEA, France; Bundesministerium fur
Bildung und Forschung; Deutsche Forschungsgemeinschaft;
Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; General
Secretariat for Research and Technology, Greece; National Scientific
Research Foundation; National Office for Research and Technology,
Hungary; Department of Atomic Energy; Department of Science and
Technology, India; Institute for Studies in Theoretical Physics and
Mathematics, Iran; Science Foundation, Ireland; Istituto Nazionale di
Fisica Nucleare, Italy; Korean Ministry of Education, Science and
Technology; World Class University of NRF, Korea; Lithuanian Academy of
Sciences; CINVESTAV; CONACYT; SEP; UASLP-FAI; Ministry of Science and
Innovation, New Zealand; Pakistan Atomic Energy Commission; State
Commission for Scientific Research, Poland; Fundacao para a Ciencia e a
Tecnologia, Portugal; JINR (Armenia); JINR (Belarus); JINR (Georgia);
JINR (Ukraine); JINR (Uzbekistan); Ministry of Science and Technologies
of the Russian Federation; Russian Ministry of Atomic Energy; Russian
Foundation for Basic Research; Ministry of Science and Technological
Development of Serbia; Ministerio de Ciencia e Innovacion; Programa
Consolider-Ingenio 2010, Spain; ETH Board; ETH Zurich; PSI; SNF; UniZH;
Canton Zurich; SER; National Science Council, Taipei; Scientific and
Technical Research Council of Turkey; Turkish Atomic Energy Authority;
Science and Technology Facilities Council, UK; US Department of Energy;
US National Science Foundation; Marie-Curie programme; European Research
Council (European Union); Leventis Foundation; A. P. Sloan Foundation;
Alexander von Humboldt Foundation; Associazione per lo Sviluppo
Scientifico e Tecnologico del Piemonte (Italy); Belgian Federal Science
Policy Office; Fonds pour la Formation a la Recherche dans l'Industrie
et dans l'Agriculture (FRIA-Belgium); Agentschap voor Innovatie door
Wetenschap en Technologie (IWT-Belgium); Council of Science and
Industrial Research, India
FX We wish to congratulate our colleagues in the CERN accelerator
departments for the excellent performance of the LHC machine. We thank
the technical and administrative staff at CERN and other CMS institutes.
This work was supported by the Austrian Federal Ministry of Science and
Research; the Belgium Fonds de la Recherche Scientifique, and Fonds voor
Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES,
FAPERJ, and FAPESP); the Bulgarian Ministry of Education and Science;
CERN; the Chinese Academy of Sciences, Ministry of Science and
Technology, and National Natural Science Foundation of China; the
Colombian Funding Agency (COLCIENCIAS); the Croatian Ministry of
Science, Education and Sport; the Research Promotion Foundation, Cyprus;
the Estonian Academy of Sciences and NICPB; the Academy of Finland,
Finnish Ministry of Education and Culture, and Helsinki Institute of
Physics; the Institut National de Physique Nucleaire et de Physique des
Particules / CNRS, and Commissariat a l'Energie Atomique et aux Energies
Alternatives / CEA, France; the Bundesministerium fur Bildung und
Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz-Gemeinschaft
Deutscher Forschungszentren, Germany; the General Secretariat for
Research and Technology, Greece; the National Scientific Research
Foundation, and National Office for Research and Technology, Hungary;
the Department of Atomic Energy and the Department of Science and
Technology, India; the Institute for Studies in Theoretical Physics and
Mathematics, Iran; the Science Foundation, Ireland; the Istituto
Nazionale di Fisica Nucleare, Italy; the Korean Ministry of Education,
Science and Technology and the World Class University program of NRF,
Korea; the Lithuanian Academy of Sciences; the Mexican Funding Agencies
(CINVESTAV, CONACYT, SEP, and UASLP-FAI); the Ministry of Science and
Innovation, New Zealand; the Pakistan Atomic Energy Commission; the
State Commission for Scientific Research, Poland; the Fundacao para a
Ciencia e a Tecnologia, Portugal; JINR (Armenia, Belarus, Georgia,
Ukraine, Uzbekistan); the Ministry of Science and Technologies of the
Russian Federation, the Russian Ministry of Atomic Energy and the
Russian Foundation for Basic Research; the Ministry of Science and
Technological Development of Serbia; the Ministerio de Ciencia e
Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Swiss
Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich,
and SER); the National Science Council, Taipei; the Scientific and
Technical Research Council of Turkey, and Turkish Atomic Energy
Authority; the Science and Technology Facilities Council, UK; the US
Department of Energy, and the US National Science Foundation.
Individuals have received support from the Marie-Curie programme and the
European Research Council (European Union); the Leventis Foundation; the
A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the
Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte
(Italy); the Belgian Federal Science Policy Office; the Fonds pour la
Formation a la Recherche dans l'Industrie et dans l'Agriculture
(FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en
Technologie (IWT-Belgium); and the Council of Science and Industrial
Research, India.
NR 29
TC 61
Z9 61
U1 0
U2 66
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2011
VL 6
AR P11002
DI 10.1088/1748-0221/6/11/P11002
PG 50
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA 865OO
UT WOS:000298320400037
ER
PT J
AU Tran, H
Gael, SL
Connolly, MD
Zuckermann, RN
AF Tran, Helen
Gael, Sarah L.
Connolly, Michael D.
Zuckermann, Ronald N.
TI Solid-phase Submonomer Synthesis of Peptoid Polymers and their
Self-Assembly into Highly-Ordered Nanosheets
SO JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
LA English
DT Article
DE Bioengineering; Issue 57; Biomimetic polymer; peptoid; nanosheet;
solid-phase synthesis; self-assembly; bilayer
AB Peptoids are a novel class of biomimetic, non-natural, sequence-specific heteropolymers that resist proteolysis, exhibit potent biological activity, and fold into higher order nanostructures. Structurally similar to peptides, peptoids are poly N-substituted glycines, where the side chains are attached to the nitrogen rather than the alpha-carbon. Their ease of synthesis and structural diversity allows testing of basic design principles to drive de novo design and engineering of new biologically-active and nanostructured materials.
Here, a simple manual peptoid synthesis protocol is presented that allows the synthesis of long chain polypeptoids (up to 50mers) in excellent yields. Only basic equipment, simple techniques (e.g. liquid transfer, filtration), and commercially available reagents are required, making peptoids an accessible addition to many researchers' toolkits. The peptoid backbone is grown one monomer at a time via the submonomer method which consists of a two-step monomer addition cycle: acylation and displacement. First, bromoacetic acid activated in situ with N, N'-diisopropylcarbodiimide acylates a resin-bound secondary amine. Second, nucleophilic displacement of the bromide by a primary amine follows to introduce the side chain. The two-step cycle is iterated until the desired chain length is reached. The coupling efficiency of this two-step cycle routinely exceeds 98% and enables the synthesis of peptoids as long as 50 residues. Highly tunable, precise and chemically diverse sequences are achievable with the submonomer method as hundreds of readily available primary amines can be directly incorporated.
Peptoids are emerging as a versatile biomimetic material for nanobioscience research because of their synthetic flexibility, robustness, and ordering at the atomic level. The folding of a single-chain, amphiphilic, information-rich polypeptoid into a highly-ordered nanosheet was recently demonstrated. This peptoid is a 36-mer that consists of only three different commercially available monomers: hydrophobic, cationic and anionic. The hydrophobic phenylethyl side chains are buried in the nanosheet core whereas the ionic amine and carboxyl side chains align on the hydrophilic faces. The peptoid nanosheets serve as a potential platform for membrane mimetics, protein mimetics, device fabrication, and sensors. Methods for peptoid synthesis, sheet formation, and microscopy imaging are described and provide a simple method to enable future peptoid nanosheet designs.
C1 [Tran, Helen; Gael, Sarah L.; Connolly, Michael D.; Zuckermann, Ronald N.] Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Zuckermann, RN (reprint author), Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
EM rnzuckermann@lbl.gov
FU Office of Science, Office of Basic Energy Sciences, of the US Department
of Energy [DE-AC02-05CH11231]; Defense Threat Reduction Agency
[IACRO-B0845281]
FX The authors would like to thank Byoung-Chul Lee, Philip Choi and Samuel
Ho for valuable assistance. This work was carried out at the Molecular
Foundry at Lawrence Berkeley National Laboratory, which is supported by
the Office of Science, Office of Basic Energy Sciences, of the US
Department of Energy under Contract No. DE-AC02-05CH11231 and the
Defense Threat Reduction Agency under Contract No: IACRO-B0845281.
NR 21
TC 3
Z9 3
U1 6
U2 22
PU JOURNAL OF VISUALIZED EXPERIMENTS
PI CAMBRIDGE
PA 1 ALEWIFE CENTER, STE 200, CAMBRIDGE, MA 02140 USA
SN 1940-087X
J9 JOVE-J VIS EXP
JI J. Vis. Exp.
PD NOV
PY 2011
IS 57
AR UNSP e3373
DI 10.3791/3373
PG 7
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA V36OZ
UT WOS:000209222200031
PM 22083233
ER
PT J
AU Zakutayev, A
Perkins, JD
Widjonarko, NE
Sigdel, AK
Berry, JJ
Ginley, DS
AF Zakutayev, A.
Perkins, J. D.
Widjonarko, N. E.
Sigdel, A. K.
Berry, J. J.
Ginley, D. S.
TI Zn-Ni-Co-O wide-band-gap p-type conductive oxides with high work
functions
SO MRS COMMUNICATIONS
LA English
DT Article
AB Co3O4-based spinels are a new class of wide-band-gap p-type conductive oxides with high work functions. We examined the structures, conductivities, work functions, and optical spectra of quaternary Zn-Ni-Co-O thin films across the entire spinel region of the ZnO-NiO-Co3O4 diagram using a high-throughput combinatorial approach. We found that the conductivity of as-deposited films is maximized (100 S/cm) and optical absorption (at 1.8 eV) is minimized in different regions of the diagram, while the work function of annealed films is high and relatively constant (5.8 +/- 0.1 eV). These properties made Zn-Ni-Co-O thin films applicable as p-type interlayers in solar cells. As an example, amorphous Zn-Co-O hole transport layers had good performance in bulk heterojunction organic photovoltaic devices.
C1 [Zakutayev, A.; Perkins, J. D.; Widjonarko, N. E.; Sigdel, A. K.; Berry, J. J.; Ginley, D. S.] Natl Renewable Energy Lab, Natl Ctr Photovolta, Golden, CO 80401 USA.
[Widjonarko, N. E.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Sigdel, A. K.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
RP Zakutayev, A (reprint author), Natl Renewable Energy Lab, Natl Ctr Photovolta, Golden, CO 80401 USA.
EM andriy.zakutayev@nrel.gov
FU US Department of Energy (DOE); Office of Science, Office of Basic Energy
Sciences: Center for Inverse Design (CID) [DE-AC36-08GO28308]; Center
for Interface Science: Solar-Electric Materials (CIS: SEM)
[DE-SC0001084]; US DOE Office of Energy Efficiency and Renewable Energy
FX This research was supported as part of two Energy Frontier Research
Centers funded by the US Department of Energy (DOE), Office of Science,
Office of Basic Energy Sciences: Center for Inverse Design (CID) under
Contract No. DE-AC36-08GO28308 to NREL (A.Z., J.D.P., D.S.G.) and Center
for Interface Science: Solar-Electric Materials (CIS: SEM) under Award
No. DE-SC0001084 (A.K.S., N.E.W., J.J.B.). P.A.P. received support from
the US DOE Office of Energy Efficiency and Renewable Energy, Solar
Energy Technology Program. A.Z., J.D.P., and D.S.G. would like to thank
Tula Paudel, Stephan Lany, and Alex Zunger at NREL for numerous fruitful
discussions. A.K.S., N.E.W., and J.J.B. thank Jennifer Leisch for
initial work on amorphous ZnCoO. A.Z. grew and characterized
polycrystalline Zn-Ni-Co-O samples and wrote the paper with
contributions, suggestions, and comments from J.D.P., P.A.P., N.E.W.,
A.K.S., J.J.B., and D.S.G. N.E.W., A.K.S., and J.J.B. were responsible
for amorphous ZnCoO hole transport layer deposition, characterization,
and OPV device fabrication/analysis. J.D.P. and P.A.P. assisted with
automation of combinatorial data collection and automation of the
analysis.
NR 18
TC 30
Z9 30
U1 3
U2 42
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 2159-6859
J9 MRS COMMUN
JI MRS Commun.
PD NOV
PY 2011
VL 1
IS 1
BP 23
EP 26
DI 10.1557/mrc.2011.9
PG 4
WC Materials Science, Multidisciplinary
SC Materials Science
GA V27RW
UT WOS:000208631300006
ER
PT J
AU Casler, MD
Tobias, CM
Kaeppler, SM
Buell, CR
Wang, ZY
Cao, PJ
Schmutz, J
Ronald, P
AF Casler, Michael D.
Tobias, Christian M.
Kaeppler, Shawn M.
Buell, C. Robin
Wang, Zeng-Yu
Cao, Peijian
Schmutz, Jeremy
Ronald, Pamela
TI The Switchgrass Genome: Tools and Strategies
SO PLANT GENOME
LA English
DT Article
ID PANICUM-VIRGATUM L.; GENETIC-TRANSFORMATION; MARKERS; POPULATIONS;
DIVERSITY; SELECTION; BIOMASS; FAMILY; FORAGE; CROPS
AB Switchgrass (Panicum virgatum L.) is a perennial grass species receiving significant focus as a potential bioenergy crop. In the last 5 yr the switchgrass research community has produced a genetic linkage map, an expressed sequence tag (EST) database, a set of single nucleotide polymorphism (SNP) markers that are distributed across the 18 linkage groups, 4x sampling of the P. virgatum AP13 genome in 400-bp reads, and bacterial artificial chromosome (BAC) libraries containing over 200,000 clones. These studies have revealed close collinearity of the switchgrass genome with those of sorghum [Sorghum bicolor (L.) Moench], rice (Oryza sativa L.), and Brachypodium distachyon (L.) P. Beauv. Switchgrass researchers have also developed several microarray technologies for gene expression studies. Switchgrass genomic resources will accelerate the ability of plant breeders to enhance productivity, pest resistance, and nutritional quality. Because switchgrass is a relative newcomer to the genomics world, many secrets of the switchgrass genome have yet to be revealed. To continue to efficiently explore basic and applied topics in switchgrass, it will be critical to capture and exploit the knowledge of plant geneticists and breeders on the next logical steps in the development and utilization of genomic resources for this species. To this end, the community has established a switchgrass genomics executive committee and work group (http://switchgrassgenomics.org/[verified 28 Oct. 2011]).
C1 [Ronald, Pamela] Univ Calif Davis, Joint Bioenergy Inst, Dep Plant Pathol, Davis, CA 95616 USA.
[Cao, Peijian; Ronald, Pamela] UC Davis Genome Ctr, Davis, CA 95616 USA.
[Casler, Michael D.] USDA ARS, US Dairy Forage Res Ctr, Madison, WI 53706 USA.
[Tobias, Christian M.] USDA ARS, Western Reg Res Ctr, Albany, CA 94710 USA.
[Kaeppler, Shawn M.] Univ Wisconsin, Dep Agron, Madison, WI 53706 USA.
[Buell, C. Robin] Michigan State Univ, Dep Plant Biol, E Lansing, MI 48824 USA.
[Wang, Zeng-Yu] Samuel Roberts Noble Fdn Inc, Ardmore, OK 73401 USA.
[Cao, Peijian] Zhengzhou Tobacco Res Inst, China Tobacco Gene Res Ctr, Zhengzhou 450001, Peoples R China.
[Schmutz, Jeremy] Dep Energy Joint Genome Inst, Walnut Creek, CA USA.
[Schmutz, Jeremy] HudsonAlpha Inst Biotechnol, Huntsville, AL USA.
RP Ronald, P (reprint author), Univ Calif Davis, Joint Bioenergy Inst, Dep Plant Pathol, Davis, CA 95616 USA.
EM pcronald@ucdavis.edu
RI Schmutz, Jeremy/N-3173-2013
OI Schmutz, Jeremy/0000-0001-8062-9172
FU Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231,
DE-AC05-00OR22725]; NIFA Plant Feedstock Genomics for Bioenergy Program
[2010-04195]
FX The studies conducted by the U.S. Department of Energy Joint Genome
Institute, the BioEnergy Science Center, and the Joint Bioenergy
Institute are supported by the Office of Science of the U.S. Department
of Energy under Contract Numbers DE-AC02-05CH11231, DE-AC05-00OR22725,
and DE-AC02-05CH11231, respectively. This research was also supported by
a grant from the NIFA Plant Feedstock Genomics for Bioenergy Program
(#2010-04195) to P.C.R. We thank D. Rokhsar, L. Bartley, R. Sharma, and
M. Sharma for helpful discussions.
NR 40
TC 42
Z9 42
U1 3
U2 38
PU CROP SCIENCE SOC AMER
PI MADISON
PA 677 S SEGOE ROAD, MADISON, WI 53711 USA
SN 1940-3372
J9 PLANT GENOME-US
JI Plant Genome
PD NOV
PY 2011
VL 4
IS 3
BP 273
EP 282
DI 10.3835/plantgenome2011.10.0026
PG 10
WC Plant Sciences; Genetics & Heredity
SC Plant Sciences; Genetics & Heredity
GA 058VA
UT WOS:000312661700011
ER
PT J
AU Ye, XH
Zhu, ZG
Zhang, CM
Zhang, YHP
AF Ye, Xinhao
Zhu, Zhiguang
Zhang, Chenming
Zhang, Y. -H. Percival
TI Fusion of a family 9 cellulose-binding module improves catalytic
potential of Clostridium thermocellum cellodextrin phosphorylase on
insoluble cellulose
SO APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
LA English
DT Article
DE Cellodextrin phosphorylase; Carbohydrate-binding module (CBM);
Cellulose; Protein engineering
ID RHODOTHERMUS-MARINUS XYLANASE; ENZYMATIC-HYDROLYSIS;
THERMOTOGA-MARITIMA; CRYSTALLINE CELLULOSE; PREVOTELLA-RUMINICOLA;
CELLOBIOSE; ENDOGLUCANASE; PURIFICATION; EXPRESSION; DOMAINS
AB Clostridium thermocellum cellodextrin phosphorylase (CtCDP), a single-module protein without an apparent carbohydrate-binding module, has reported activities on soluble cellodextrin with a degree of polymerization (DP) from two to five. In this study, CtCDP was first discovered to have weak activities on weakly water-soluble celloheptaose and insoluble regenerated amorphous cellulose (RAC). To enhance its activity on solid cellulosic materials, four cellulose binding modules, e.g., CBM3 (type A) from C. thermocellum CbhA, CBM4-2 (type B) from Rhodothermus marinus Xyn10A, CBM6 (type B) from Cellvibrio mixtus Cel5B, and CBM9-2 (type C) from Thermotoga maritima Xyn10A, were fused to the C terminus of CtCDP. Fusion of any selected CBM with CtCDP did not influence its kinetic parameters on cellobiose but affected the binding and catalytic properties on celloheptaose and RAC differently. Among them, addition of CBM9 to CtCDP resulted in a 2.7-fold increase of catalytic efficiency for degrading celloheptaose. CtCDP-CBM9 exhibited enhanced specific activities over 20% on the short-chain RAC (DP = 14) and more than 50% on the long-chain RAC (DP = 164). The chimeric protein CtCDP-CBM9 would be the first step to construct a cellulose phosphorylase for in vitro hydrogen production from cellulose by synthetic pathway biotransformation (SyPaB).
C1 [Ye, Xinhao; Zhu, Zhiguang; Zhang, Chenming; Zhang, Y. -H. Percival] Virginia Tech, Dept Biol Syst Engn, Blacksburg, VA 24061 USA.
[Zhang, Y. -H. Percival] Virginia Tech, ICTAS, Blacksburg, VA 24061 USA.
[Zhang, Y. -H. Percival] DOE Bioenergy Sci Ctr, Oak Ridge, TN 37831 USA.
RP Zhang, YHP (reprint author), Virginia Tech, Dept Biol Syst Engn, Blacksburg, VA 24061 USA.
EM ypzhang@vt.edu
RI Zhu, Zhiguang/I-3936-2016
FU Biological Systems Engineering Department of Virginia Tech; Air Force
Office of Scientific Research [FA9550-08-1-0145]; USDA Biodesign and
Bioprocess Center; DOE BESC
FX This work was not possible without support from the Biological Systems
Engineering Department of Virginia Tech, the Air Force Office of
Scientific Research (FA9550-08-1-0145), the USDA Biodesign and
Bioprocess Center, and DOE BESC to YPZ.
NR 52
TC 16
Z9 16
U1 1
U2 29
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0175-7598
J9 APPL MICROBIOL BIOT
JI Appl. Microbiol. Biotechnol.
PD NOV
PY 2011
VL 92
IS 3
BP 551
EP 560
DI 10.1007/s00253-011-3346-8
PG 10
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA 830RI
UT WOS:000295673800012
PM 21630044
ER
PT J
AU Shao, XJ
Raman, B
Zhu, MJ
Mielenz, JR
Brown, SD
Guss, AM
Lynd, LR
AF Shao, Xiongjun
Raman, Babu
Zhu, Mingjun
Mielenz, Jonathan R.
Brown, Steven D.
Guss, Adam M.
Lynd, Lee R.
TI Mutant selection and phenotypic and genetic characterization of
ethanol-tolerant strains of Clostridium thermocellum
SO APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
LA English
DT Article
DE Clostridium thermocellum; Ethanol tolerance; Genome sequencing; Strain
adaptation; Mutations
ID THERMOPHILIC BACTERIA; SIGMA FACTORS; GROWTH; FERMENTATION; MEMBRANES;
PROFILE; XYLOSE
AB Clostridium thermocellum is a model microorganism for converting cellulosic biomass into fuels and chemicals via consolidated bioprocessing. One of the challenges for industrial application of this organism is its low ethanol tolerance, typically 1-2% (w/v) in wild-type strains. In this study, we report the development and characterization of mutant C. thermocellum strains that can grow in the presence of high ethanol concentrations. Starting from a single colony, wild-type C. thermocellum ATCC 27405 was sub-cultured and adapted for growth in up to 50 g/L ethanol using either cellobiose or crystalline cellulose as the growth substrate. Both the adapted strains retained their ability to grow on either substrate and displayed a higher growth rate and biomass yield than the wild-type strain in the absence of ethanol. With added ethanol in the media, the mutant strains displayed an inverse correlation between ethanol concentration and growth rate or biomass yield. Genome sequencing revealed six common mutations in the two ethanol-tolerant strains including an alcohol dehydrogenase gene and genes involved in arginine/pyrimidine biosynthetic pathway. The potential role of these mutations in ethanol tolerance phenotype is discussed.
C1 [Shao, Xiongjun; Lynd, Lee R.] Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA.
[Raman, Babu; Mielenz, Jonathan R.; Brown, Steven D.; Guss, Adam M.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
[Shao, Xiongjun; Raman, Babu; Mielenz, Jonathan R.; Brown, Steven D.; Guss, Adam M.; Lynd, Lee R.] Oak Ridge Natl Lab, BESC, Oak Ridge, TN 37831 USA.
[Zhu, Mingjun] S China Univ Technol, Sch Biosci & Bioengn, Guangzhou 510006, Guangdong, Peoples R China.
[Lynd, Lee R.] Mascoma Corp, Lebanon, NH 03766 USA.
RP Lynd, LR (reprint author), Dartmouth Coll, Thayer Sch Engn, 8000 Cummings Hall, Hanover, NH 03755 USA.
EM lee.lynd@dartmouth.edu
RI Lynd, Lee/N-1260-2013; Guss, Adam/A-6204-2011; Brown, Steven/A-6792-2011
OI Lynd, Lee/0000-0002-5642-668X; Guss, Adam/0000-0001-5823-5329; Brown,
Steven/0000-0002-9281-3898
FU BioEnergy Science Center (BESC), a US Department of Energy (DOE)
Research Center; Office of Biological and Environmental Research in the
DOE Office of Science; Department of Energy [DE-AC05-00OR22725]; Mascoma
Corporation
FX The authors are grateful for the support provided by funding grants from
the BioEnergy Science Center (BESC), a US Department of Energy (DOE)
Research Center supported by the Office of Biological and Environmental
Research in the DOE Office of Science and Mascoma Corporation. The
authors are also grateful for the genome sequencing support provided by
the DOE Joint Genome Institute (JGI). Oak Ridge National Laboratory is
managed by University of Tennessee UT-Battelle LLC for the Department of
Energy under contract no. DE-AC05-00OR22725.
NR 31
TC 32
Z9 34
U1 0
U2 24
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0175-7598
J9 APPL MICROBIOL BIOT
JI Appl. Microbiol. Biotechnol.
PD NOV
PY 2011
VL 92
IS 3
BP 641
EP 652
DI 10.1007/s00253-011-3492-z
PG 12
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA 830RI
UT WOS:000295673800020
PM 21874277
ER
PT J
AU Liu, JJ
Zheng, YF
Li, ZQ
Flynn, C
Welton, EJ
Cribb, M
AF Liu, Jianjun
Zheng, Youfei
Li, Zhanqing
Flynn, Connor
Welton, E. J.
Cribb, Mareen
TI Transport, vertical structure and radiative properties of dust events in
southeast China determined from ground and space sensors
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE Dust; Transport; Vertical structure; Radiative properties; Southeast
China
ID TO-BACKSCATTER RATIO; KEY AEROSOL TYPES; ASIAN DUST; LIDAR MEASUREMENTS;
OPTICAL-PROPERTIES; RAMAN LIDAR; ACE-ASIA; WORLDWIDE LOCATIONS;
INDIAN-OCEAN; SURFACE
AB Two dust events were detected over the Yangtze Delta region of China during March 14-17 and April 25-26 in 2009 where such dust events are uncommon. The transport behavior, spatio-temporal evolution, vertical structure, direct radiative effects, as well as induced heating rates, are investigated using a combination of ground-based and satellite-based measurements, a back-trajectory analysis, an aerosol model and a radiative transfer model. Back-trajectories, wind fields and aerosol model analyses show that the first dust originated in northern/northwestern China and the second generated in the Taklimakan desert in northwest China, and traveled across the Hexi corridor and Loess Plateau to the Yangtze Delta region (the so-called "dust corridor"). The mean lidar extinction-to-backscatter ratio (LR) during the two dust events was 38.7 +/- 10.4 sr and 42.7 +/- 15.2 sr, respectively. The mean aerosol depolarization ratio (delta(a)) for the first dust event was 0.16 +/- 0.07, with a maximum value of 0.32. For the second, the mean delta(a) was around 0.19 +/- 0.06, with a maximum value of 0.29. Aerosol extinction coefficient and da profiles for the two events were similar: two aerosol layers consisting of dust aerosols and a mixture of dust and anthropogenic pollution aerosols. The topmost aerosol layer is above 3.5 km. The maximum mean aerosol extinction coefficients were 0.5 km(-1) and 0.54 km(-1) at about 0.7 km and 1.1 km, respectively. Significant effects of cooling at the surface and heating in the atmosphere were found during these dust events. Diurnal mean shortwave radiative forcings (efficiencies) at the surface, the top-of-the-atmosphere and within the atmosphere were -36.8 (-80.0), -13.6 (-29.6) and 23.2 (50.4) W m(-2), respectively, during the first dust event, and -48.2 (-70.9), -21.4 (-31.5) and 26.8 (39.4) W m(-2), respectively, during the second dust event. Maximum heating rates occurred at 0.7 km during the first dust event and at 1.1 km during the second dust event, with a maximum value of 2.74 K day(-1) for each case. This significant atmospheric heating induced by elevated dust aerosol layers can affect convection and stability in the lower troposphere. Published by Elsevier Ltd.
C1 [Liu, Jianjun; Zheng, Youfei; Li, Zhanqing] Nanjing Univ Informat Sci & Technol, Jiangsu Key Lab Atmospher Environm Monitoring & P, Nanjing, Peoples R China.
[Liu, Jianjun; Li, Zhanqing; Cribb, Mareen] Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA.
[Liu, Jianjun; Li, Zhanqing; Cribb, Mareen] Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA.
[Flynn, Connor] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Welton, E. J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
RP Li, ZQ (reprint author), Beijing Normal Univ, Lab Earth Surface Proc & Resource Ecol, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China.
EM zli@atmos.umd.edu
RI Welton, Ellsworth/A-8362-2012; Liu, Jianjun/F-4673-2014; Li,
Zhanqing/F-4424-2010; Cribb, Maureen/K-1341-2013
OI Li, Zhanqing/0000-0001-6737-382X; Cribb, Maureen/0000-0002-9745-3676
FU National Basic Research Program of China [2006CB403705, 2011CB403405];
DOE [DEFG0208ER64571]; NASA [NNX08AH71G]
FX This study was supported by the National Basic Research Program of China
(2006CB403705 and 2011CB403405), DOE (DEFG0208ER64571), and NASA
(NNX08AH71G).
NR 57
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Z9 20
U1 1
U2 23
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1352-2310
J9 ATMOS ENVIRON
JI Atmos. Environ.
PD NOV
PY 2011
VL 45
IS 35
BP 6469
EP 6480
DI 10.1016/j.atmosenv.2011.04.031
PG 12
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 830JR
UT WOS:000295653800022
ER
PT J
AU Phan, AV
Guduru, V
Salvadori, A
Gray, LJ
AF Phan, A. -V.
Guduru, V.
Salvadori, A.
Gray, L. J.
TI Frequency domain analysis by the exponential window method and SGBEM for
elastodynamics
SO COMPUTATIONAL MECHANICS
LA English
DT Article
DE Frequency domain analysis; Exponential window method; Symmetric-Galerkin
boundary element method; Elastodynamics
ID BOUNDARY-ELEMENT METHOD; INTENSITY FACTOR COMPUTATIONS; DYNAMIC
FRACTURE-ANALYSIS; CRACK PROBLEMS; INTEGRALS
AB Dynamic analysis of a system can be carried out either in the time or frequency domain. Time responses/ histories of this system may be directly obtained using time-domain analysis. In case of frequency domain analysis in the Fourier space, the inverse fast Fourier transform (inverse FFT) would naturally be an appropriate choice for converting frequency solutions to the desired time responses. However, the standard FFT can not be applied to undamped systems as the free-vibration terms of these systems never decay which violates the periodic nature of the standard FFT algorithm. In addition, the FFT may be computationally expensive for lightly damped systems. An alternative to overcome the above limitations is the so-called exponential window method (EWM) commonly used in digital signal processing. This paper presents a combination of the EWM and the symmetric-Galerkin boundary element method for 2-D elastodynamic analysis in the frequency domain of undamped and lightly damped systems. Several numerical examples, including fracture problems, are given to illustrate the efficiency and accuracy of the proposed frequency domain analysis.
C1 [Phan, A. -V.; Guduru, V.] Univ S Alabama, Dept Mech Engn, Mobile, AL 36688 USA.
[Salvadori, A.] Univ Brescia, DICATA, I-25123 Brescia, Italy.
[Gray, L. J.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
RP Phan, AV (reprint author), Univ S Alabama, Dept Mech Engn, Mobile, AL 36688 USA.
EM vphan@jaguar1.usouthal.edu
RI Salvadori, Alberto/C-7225-2008
OI Salvadori, Alberto/0000-0002-4875-7059
FU NSF [CMMI-0653796]; NASA [NNM07AA09A-03]; Office of Advanced Scientific
Computing Research, U.S. Department of Energy [DE-AC05-00OR22725];
UT-Battelle, LLC
FX This research was supported in part by the NSF Grant CMMI-0653796 and
NASA Grant NNM07AA09A-03 to the first named author, and by the Office of
Advanced Scientific Computing Research, U.S. Department of Energy, under
contract DE-AC05-00OR22725 with UT-Battelle, LLC, to the fourth named
author.
NR 41
TC 6
Z9 6
U1 0
U2 10
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0178-7675
J9 COMPUT MECH
JI Comput. Mech.
PD NOV
PY 2011
VL 48
IS 5
BP 615
EP 630
DI 10.1007/s00466-011-0610-9
PG 16
WC Mathematics, Interdisciplinary Applications; Mechanics
SC Mathematics; Mechanics
GA 832ZN
UT WOS:000295850300008
ER
PT J
AU Zimmerman, SRH
Hemming, SR
Hemming, NG
Tomascak, PB
Pearl, C
AF Zimmerman, Susan R. H.
Hemming, Sidney R.
Hemming, N. Gary
Tomascak, Paul B.
Pearl, Crystal
TI High-resolution chemostratigraphic record of late Pleistocene lake-level
variability, Mono Lake, California
SO GEOLOGICAL SOCIETY OF AMERICA BULLETIN
LA English
DT Article
ID PAST 250,000 YEARS; GREAT-BASIN; GEOMAGNETIC EXCURSIONS; RADIOCARBON
CHRONOLOGY; PALEOCLIMATE RECORD; LASCHAMP EXCURSION; SIERRA-NEVADA;
SUMMER LAKE; CORE OL-92; OWENS LAKE
AB The study of abrupt changes in global climate requires high-resolution records for which the connection to the climate system is well understood. Because lake systems are by their nature unique, ground truthing of geochemical measurements against directly observable physical evidence is required. The Mono Lake basin exposes multiple outcrops of lake sediments deposited during the last glacial period, providing the opportunity to reconstruct lake-level changes through stratigraphy-based interpretation of high-resolution records. Here we present a record of bulk-sediment carbonate derived from overlapping sections in three outcrops around the Mono Lake basin. We interpret this record as a reflection of lake-level variation, based on well-exposed stratigraphy and sedimentary facies changes. The co-variation of lake level with Sr isotopes measured in ostracodes is interpreted to reflect increased proportion of water supplied from the eastern basin during wet times. This high carbonate-high lake-level relationship is the opposite of the high carbonate-low lake-level relationship inferred in nearby Owens Lake, a difference attributable to extreme differences in basin geometry affecting the frequency of spilling conditions and resultant lake chemistry.
C1 [Zimmerman, Susan R. H.; Hemming, Sidney R.] Columbia Univ, Dept Earth & Environm Sci, Palisades, NY 10964 USA.
[Zimmerman, Susan R. H.; Hemming, Sidney R.] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA.
[Hemming, N. Gary; Pearl, Crystal] CUNY Queens Coll, Sch Earth & Environm Sci, Flushing, NY 11367 USA.
[Tomascak, Paul B.] SUNY Coll Oswego, Dept Earth Sci, Oswego, NY 13126 USA.
RP Zimmerman, SRH (reprint author), Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA.
EM zimmerman17@llnl.gov
RI Zimmerman, Susan/A-3351-2013
FU National Science Foundation (NSF) [OCE99-07290]; Lamont-Doherty Earth
Observatory (LDEO) Climate Center Committee; Geological Society of
America; American Chemical Society; U.S. Department of Energy by
Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
FX This work would not have been possible without the comprehensive,
detailed study of the Mono Lake basin presented in the dissertation of
Kenneth R. Lajoie. In addition, extensive comments and figures provided
by him greatly improved this manuscript; his contributions are
gratefully acknowledged. We thank S. Stine, S. Searle, and K. Tamulonis
for fieldwork and discussions, J. Bischoff for his advice and guidance,
W. Cassata for providing his RPI correlations, G. Bench for his
unflagging support, and A. Cohen, J. Oviatt, and B. Singer (Associate
Editor) for encouraging reviews. SRHZ was supported by a National
Science Foundation (NSF) Graduate Research Fellowship and NSF grant
OCE99-07290; fieldwork was funded by the Lamont-Doherty Earth
Observatory (LDEO) Climate Center Committee and the Geological Society
of America; additional funding was provided by the American Chemical
Society. This work performed partly under the auspices of the U.S.
Department of Energy by Lawrence Livermore National Laboratory under
Contract DE-AC52-07NA27344. This is LDEO contribution #7420.
NR 66
TC 14
Z9 14
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 NOV-DEC
PY 2011
VL 123
IS 11-12
BP 2320
EP 2334
DI 10.1130/B30377.1
PG 15
WC Geosciences, Multidisciplinary
SC Geology
GA 827CC
UT WOS:000295402600013
ER
PT J
AU Lee, MW
Park, JJ
Kim, DY
Yoon, SS
Kim, HY
Kim, DH
James, SC
Chandra, S
Coyle, T
Ryu, JH
Yoon, WH
Park, DS
AF Lee, M. W.
Park, J. J.
Kim, D. Y.
Yoon, S. S.
Kim, H. Y.
Kim, D. H.
James, S. C.
Chandra, S.
Coyle, Thomas
Ryu, J. H.
Yoon, W. H.
Park, D. S.
TI Optimization of supersonic nozzle flow for titanium dioxide thin-film
coating by aerosol deposition
SO JOURNAL OF AEROSOL SCIENCE
LA English
DT Article
DE Aerosol deposition; Supersonic nozzle flow; Shockwave; Nozzle
optimization; Computational fluid dynamics
ID DYNAMIC SPRAY PROCESS; COLD SPRAY; PARTICLE-VELOCITY; ROOM-TEMPERATURE;
NUMERICAL-SIMULATION; OPTIMAL-DESIGN; MECHANISM; POWDER; JET
AB Aerosol deposition (AD) is an efficient technique for customized coating of various substrates. The small particles of AD yield a dense coating layer with small voids. AD is amenable to rapid coating (mass production), thus, it is economically attractive. Low-temperature AD coating is desirable because it minimizes the thermal degradation of the substrate. An optimized low-cost AD coating technique is of significant interest to solar-cell engineers seeking to reduce manufacturing costs. While most previous studies ignore the importance of nozzle geometry on coating performance, this paper examines non-optimized nozzles and commensurate shockwaves using computational fluid dynamics (CFD). The optimized nozzle geometry obtained from CFD can rapidly prototype nozzles. The CFD-designed nozzles with optimized geometry yielded significantly improved coating quality over non-optimized nozzles. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Lee, M. W.; Park, J. J.; Kim, D. Y.; Yoon, S. S.; Kim, H. Y.] Korea Univ, Dept Mech Engn, Seoul 136713, South Korea.
[Kim, D. H.] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea.
[James, S. C.] Sandia Natl Labs, Livermore, CA USA.
[Chandra, S.; Coyle, Thomas] Univ Toronto, Dept Mech & Ind Engn, Toronto, ON, Canada.
[Ryu, J. H.; Yoon, W. H.; Park, D. S.] Korea Inst Mat Sci, Funct Ceram Res Grp, Chang Won 641831, Kyungnam, South Korea.
RP Yoon, SS (reprint author), Korea Univ, Dept Mech Engn, Seoul 136713, South Korea.
EM skyoon@korea.ac.kr
RI Lee, MW/F-2120-2013;
OI James, Scott/0000-0001-7955-0491
FU Korea Institute of Energy Technology Evaluation and Planning (KETEP)
[2010-3010010011]; Ministry of Knowledge Economy of Korea; Center for
Inorganic Photovoltaic Materials [NRF-2011-0007182, NRF-2010-D00013];
Ministry of Education, Science and Technology [2010K000969]
FX This work was supported by the New & Renewable Energy Program through a
grant by the Korea Institute of Energy Technology Evaluation and
Planning (KETEP, 2010-3010010011) and the Fundamental R&D Program for
Core Technology of Materials funded by the Ministry of Knowledge Economy
of Korea. This work was also supported by the Center for Inorganic
Photovoltaic Materials (NRF-2011-0007182), (NRF-2010-D00013), and the
Converging Research Center Program through the Ministry of Education,
Science and Technology (2010K000969).
NR 31
TC 21
Z9 21
U1 1
U2 25
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0021-8502
J9 J AEROSOL SCI
JI J. Aerosol. Sci.
PD NOV
PY 2011
VL 42
IS 11
BP 771
EP 780
DI 10.1016/j.jaerosci.2011.07.006
PG 10
WC Engineering, Chemical; Engineering, Mechanical; Environmental Sciences;
Meteorology & Atmospheric Sciences
SC Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric
Sciences
GA 829FW
UT WOS:000295565000003
ER
PT J
AU Krejci, MR
Wasserman, B
Finney, L
McNulty, I
Legnini, D
Vogt, S
Joester, D
AF Krejci, Minna R.
Wasserman, Brian
Finney, Lydia
McNulty, Ian
Legnini, Daniel
Vogt, Stefan
Joester, Derk
TI Selectivity in biomineralization of barium and strontium
SO JOURNAL OF STRUCTURAL BIOLOGY
LA English
DT Article
DE Biomineralization; Plant physiology; Ion selectivity; Desmid green
algae; X-ray fluorescence microscopy
ID X-RAY-FLUORESCENCE; SACCHAROMYCES-CEREVISIAE; SULFATE TRANSPORTERS;
CLOSTERIUM-ACEROSUM; CALCIUM-TRANSPORT; DESMID CLOSTERIUM;
AQUEOUS-SOLUTIONS; WETLAND BIOFILMS; SOLID-SOLUTIONS; TRACE-ELEMENTS
AB The desmid green alga Closterium moniliferum belongs to a small number of organisms that form barite (BaSO(4)) or celestite (SrSO(4)) biominerals. The ability to sequester Sr in the presence of an excess of Ca is of considerable interest for the remediation of (90)Sr from the environment and nuclear waste. While most cells dynamically regulate the concentration of the second messenger Ca(2+) in the cytosol and various organelles, transport proteins rarely discriminate strongly between Ca, Sr, and Ba. Herein, we investigate how these ions are trafficked in C. moniliferum and how precipitation of (Ba,Sr)SO(4) crystals occurs in the terminal vacuoles. Towards this goal, we simultaneously visualize intracellular dynamics of multiple elements using X-ray fluorescence microscopy (XFM) of cryo-fixed/freeze-dried samples. We correlate the resulting elemental maps with ultrastructural information gleaned from freeze-fracture cryo-SEM of frozen-hydrated cells and use micro X-ray absorption near edge structure (micro-XANES) to determine sulfur speciation. We find that the kinetics of Sr uptake and efflux depend on external Ca concentrations, and Sr, Ba, and Ca show similar intracellular localization. A highly ion-selective cross-membrane transport step is not evident. Based on elevated levels of sulfate detected in the terminal vacuoles, we propose a "sulfate trap" model, where the presence of dissolved barium leads to preferential precipitation of (Ba,Sr)SO(4) due to its low solubility relative to SrSO(4) and CaSO(4). Engineering the sulfate concentration in the vacuole may thus be the most direct way to increase the Sr sequestered per cell, an important consideration in using desmids for phytoremediation of (90)Sr. (C) 2011 Elsevier Inc. All rights reserved.
C1 [Krejci, Minna R.; Wasserman, Brian; Joester, Derk] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
[Finney, Lydia] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
[Krejci, Minna R.; Finney, Lydia; McNulty, Ian; Legnini, Daniel; Vogt, Stefan] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
RP Joester, D (reprint author), Northwestern Univ, Dept Mat Sci & Engn, 2220 Campus Dr, Evanston, IL 60208 USA.
EM d-joester@northwestern.edu
RI Joester, Derk/B-7525-2009; Vogt, Stefan/B-9547-2009; Vogt,
Stefan/J-7937-2013
OI Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513
FU Initiative for Sustainability and Energy at NU (ISEN); NU Undergraduate
Research Grant; US Department of Energy, Office of Science, Office of
Basic Energy Sciences [DE-AC02-06CH11357]
FX This work was in part supported by a booster award from the Initiative
for Sustainability and Energy at NU (ISEN). B.W. was supported in part
by an NU Undergraduate Research Grant. Confocal microscopy and
cryofixation was performed at the NU Biological Imaging Facility. SEM
was performed in the EPIC facility of NUANCE Center at NU. NUANCE Center
is supported by NSF-NSEC, NSF-MRSEC, Keck Foundation, the State. of
Illinois, and NU. Cryo-SEM was performed with the generous assistance of
Roger Wepf and Falk Lucas at the Electron Microscopy Center of ETH
Zurich (EMEZ). Use of the Advanced Photon Source at Argonne National
Laboratory was supported by the US Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-06CH11357. We thank Dr. Barry Lai for help with XFM imaging.
M.R.K. holds a Laboratory-Graduate Research Appointment at Argonne
National Laboratory.
NR 64
TC 17
Z9 17
U1 3
U2 43
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1047-8477
J9 J STRUCT BIOL
JI J. Struct. Biol.
PD NOV
PY 2011
VL 176
IS 2
BP 192
EP 202
DI 10.1016/j.jsb.2011.08.006
PG 11
WC Biochemistry & Molecular Biology; Biophysics; Cell Biology
SC Biochemistry & Molecular Biology; Biophysics; Cell Biology
GA 833SC
UT WOS:000295904200007
PM 21871966
ER
PT J
AU Stock, SR
Veis, A
Telser, A
Cai, Z
AF Stock, S. R.
Veis, A.
Telser, A.
Cai, Z.
TI Near tubule and intertubular bovine dentin mapped at the 250 nm level
SO JOURNAL OF STRUCTURAL BIOLOGY
LA English
DT Article
DE Dentin; Bovine; Peritubular dentin; Intertubular dentin; Synchrotron;
X-ray diffraction; X-ray fluorescence, Zinc; Calcium; Carbonated
apatite; Crystallographic texture
ID X-RAY-DIFFRACTION; HUMAN TEETH; PERITUBULAR DENTIN; BONE; MATRIX;
MICROSCOPY; MICROPROBE; COLLAGEN; ENAMEL
AB In this study, simultaneous diffraction and fluorescence mapping with a (250 nm)(2), 10.1 key synchrotron X-ray beam investigated the spatial distribution of carbonated apatite (cAp) mineral and elemental Ca (and other cations including Zn) around dentin tubules. In 1 pm thick sections of near-pulp root dentin, where peritubular dentin (PTD) is newly forming, high concentrations of Zn, relative to those in intertubular dentin (ITD), were observed adjacent to and surrounding the tubule lumens. Some but not all tubules exhibited hypercalcified collars (high Ca signal relative to the surrounding ITD), and, when present, the zone of high Ca did not extend around the tubule. Diffraction rings from cAp 00.2 and 11.2 + 21.1 + 30.0 reflections were observed, and cAp was the only crystal phase detected. Profiles of Ca, Zn and cAp diffracted intensities showed the same transitions from solid to tubule lumen, indicating the same cAp content and organization in ITD far from the tubules and adjacent to them. Further, the matching Ca and diffraction profiles demonstrated that all of the Ca is in cAp or that any noncrystalline Ca was uniformly distributed throughout the dentin. Variation of 00.2 and 11.2 + 21.1 + 30.0 diffracted intensity was consistent with the expected biaxial crystallographic texture. Extension of X-ray mapping from near 1 pm resolution to the 250 nm level, performed here for dentin and its tubules, will provide new understanding of other mineralized tissues. (C) 2011 Elsevier Inc. All rights reserved.
C1 [Stock, S. R.] Northwestern Univ, Dept Mol Pharmacol & Biol Chem, Feinberg Sch Med, Chicago, IL 60611 USA.
[Veis, A.; Telser, A.] Northwestern Univ, Dept Cell & Mol Biol, Feinberg Sch Med, Chicago, IL 60611 USA.
[Cai, Z.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Stock, SR (reprint author), Northwestern Univ, Dept Mol Pharmacol & Biol Chem, Feinberg Sch Med, Mail Code S215,303 E Chicago Ave, Chicago, IL 60611 USA.
EM s-stock@northwestern.edu
FU NICDR [DE001374]; US Department of Energy, Office of Science, Office of
Basic Energy Sciences [DE-AC02-06CH11357]
FX The authors thank Mr. Lennell Reynolds for preparing the dentin sections
and Dr. M.L. Cannon for bringing MMPs role in bond weakening to our
attention. The research was supported by NICDR grant DE001374 (to AV).
Use of the Advanced Photon Source was supported by the US Department of
Energy, Office of Science, Office of Basic Energy Sciences, under
Contract No. DE-AC02-06CH11357.
NR 36
TC 13
Z9 13
U1 1
U2 13
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1047-8477
EI 1095-8657
J9 J STRUCT BIOL
JI J. Struct. Biol.
PD NOV
PY 2011
VL 176
IS 2
BP 203
EP 211
DI 10.1016/j.jsb.2011.07.014
PG 9
WC Biochemistry & Molecular Biology; Biophysics; Cell Biology
SC Biochemistry & Molecular Biology; Biophysics; Cell Biology
GA 833SC
UT WOS:000295904200008
PM 21821132
ER
PT J
AU Berman, GP
Chumak, AA
Kamenev, DI
Kinion, D
Tsifrinovich, VI
AF Berman, G. P.
Chumak, A. A.
Kamenev, D. I.
Kinion, D.
Tsifrinovich, V. I.
TI NON-DEMOLITION ADIABATIC MEASUREMENT OF THE PHASE QUBIT STATE
SO QUANTUM INFORMATION & COMPUTATION
LA English
DT Article
DE phase qubit; adiabatic measurement; resonator
AB An adiabatic method for a single-shot non-demolition measurement of the phase qubit is suggested. The qubit is inductively coupled to a low-frequency resonator, which in turn is connected with a classical measurement device (phase meter). The resonator drives adiabatic oscillations of the supercurrent in the qubit loop. The back reaction of the qubit loop on the resonator depends on the qubit state. Measuring the phase shift of the resonator's oscillations one can determine the state of the qubit. Numerical computations with available experimental parameters show that the phase difference between the two qubit states increases at a rate of 0.0044 rad/ns with the fidelity of about 0.9989 and the measurement time of about 100 ns. The fidelity of the measurement is estimated taking into consideration possible quantum transitions inside and outside the qubit manifold. An increase of the phase difference is possible but it is linked to a reduction of the fidelity. The requirements for the reproducibility of the qubit and resonator parameters are formulated.
C1 [Berman, G. P.; Chumak, A. A.; Kamenev, D. I.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Chumak, A. A.] Natl Acad Sci, Inst Phys, UA-28 Kiev, Ukraine.
[Kamenev, D. I.] Los Alamos Natl Lab, CNLS, Los Alamos, NM 87545 USA.
[Kinion, D.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Tsifrinovich, V. I.] NYU, Polytech Inst, Dept Appl Phys, MetroTech Ctr 6, Brooklyn, NY 11201 USA.
RP Berman, GP (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
FU U.S. Department of Energy at Los Alamos National Laboratory
[DE-AC52-06NA25396]; Lawrence Livermore National Laboratory [DE-AC52-
07NA27344]; Office of the Director of National Intelligence (ODNI);
Intelligence Advanced Research Projects Activity (IARPA)
FX This work 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-AC52-06NA25396 and by Lawrence
Livermore National Laboratory under Contract DE-AC52- 07NA27344, and was
funded by the Office of the Director of National Intelligence (ODNI),
and Intelligence Advanced Research Projects Activity (IARPA). All
statements of fact, opinion or conclusions contained herein are those of
the authors and should not be construed as representing the official
views or policies of IARPA, the ODNI, or the U.S. Government.
NR 20
TC 1
Z9 1
U1 2
U2 3
PU RINTON PRESS, INC
PI PARAMUS
PA 565 EDMUND TERRACE, PARAMUS, NJ 07652 USA
SN 1533-7146
J9 QUANTUM INF COMPUT
JI Quantum Inform. Comput.
PD NOV
PY 2011
VL 11
IS 11-12
BP 1045
EP 1065
PG 21
WC Computer Science, Theory & Methods; Physics, Particles & Fields;
Physics, Mathematical
SC Computer Science; Physics
GA 830JC
UT WOS:000295652300012
ER
PT J
AU Kucerka, N
Nieh, MP
Katsaras, J
AF Kucerka, Norbert
Nieh, Mu-Ping
Katsaras, John
TI Fluid phase lipid areas and bilayer thicknesses of commonly used
phosphatidylcholines as a function of temperature
SO BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
LA English
DT Article
DE Area per lipid; Bilayer structure; Fluid phase; Neutron scattering;
X-ray scattering; Phosphatidylcholine
ID MOLECULAR-DYNAMICS SIMULATIONS; X-RAY-SCATTERING; ANGLE
NEUTRON-SCATTERING; UNSATURATED PHOSPHATIDYLCHOLINES; UNILAMELLAR
VESICLES; MEMBRANE; CHOLESTEROL; DIFFRACTION; CHAIN; WATER
AB The structural parameters of fluid phase bilayers composed of phosphatidylcholines with fully saturated, mixed, and branched fatty acid chains, at several temperatures, have been determined by simultaneously analyzing small-angle neutron and X-ray scattering data. Bilayer parameters, such as area per lipid and overall bilayer thickness have been obtained in conjunction with intrabilayer structural parameters (e.g. hydrocarbon region thickness). The results have allowed us to assess the effect of temperature and hydrocarbon chain composition on bilayer structure. For example, we found that for all lipids there is, not surprisingly, an increase in fatty acid chain trans-gauche isomerization with increasing temperature. Moreover, this increase in trans-gauche isomerization scales with fatty acid chain length in mixed chain lipids. However, in the case of lipids with saturated fatty acid chains, trans-gauche isomerization is increasingly tempered by attractive chain-chain van der Waals interactions with increasing chain length. Finally, our results confirm a strong dependence of lipid chain dynamics as a function of double bond position along fatty acid chains. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
C1 [Kucerka, Norbert; Katsaras, John] CNR, Canadian Neutron Beam Ctr, Chalk River, ON K0J 1J0, Canada.
[Kucerka, Norbert] Comenius Univ, Fac Pharm, Dept Phys Chem Drugs, Bratislava 83232, Slovakia.
[Nieh, Mu-Ping] Univ Connecticut, Inst Mat Sci, Dept Chem Mat & Biomol Engn, Storrs, CT 06269 USA.
[Katsaras, John] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA.
RP Kucerka, N (reprint author), CNR, Canadian Neutron Beam Ctr, Chalk River, ON K0J 1J0, Canada.
EM Norbert.Kucerka@nrc.gc.ca
OI Nieh, Mu-Ping/0000-0003-4462-8716; Katsaras, John/0000-0002-8937-4177
FU Office of Biological and Environmental Research at Oak Ridge National
Laboratory's (ORNL) Center for Structural Molecular Biology (CSMB);
UT-Battelle, LLC [DE-AC05-000R2275]; National Science Foundation
[DMR-0944772]; Cornell High Energy Synchrotron Source (CHESS); National
Institutes of Health/National Institute of General Medical Sciences
under National Science Foundation [DMR-0225180]; ORNL's Laboratory
Directed Research and Development (LORD); Development (LORD) program
FX This work acknowledges the support of the Office of Biological and
Environmental Research at Oak Ridge National Laboratory's (ORNL) Center
for Structural Molecular Biology (CSMB) through the utilization of
facilities supported by the U.S. Department of Energy, managed by
UT-Battelle, LLC under contract no. DE-AC05-000R2275, facilities of the
National Institute of Standards and Technology (NIST) supported in part
by the National Science Foundation under agreement no. DMR-0944772, and
the Cornell High Energy Synchrotron Source (CHESS), which is supported
by the National Science Foundation and the National Institutes of
Health/National Institute of General Medical Sciences under National
Science Foundation award DMR-0225180. JK is partially supported by
ORNL's Laboratory Directed Research and Development (LORD) program.
NR 58
TC 207
Z9 207
U1 9
U2 93
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0005-2736
J9 BBA-BIOMEMBRANES
JI Biochim. Biophys. Acta-Biomembr.
PD NOV
PY 2011
VL 1808
IS 11
BP 2761
EP 2771
DI 10.1016/j.bbamem.2011.07.022
PG 11
WC Biochemistry & Molecular Biology; Biophysics
SC Biochemistry & Molecular Biology; Biophysics
GA 825AD
UT WOS:000295242400015
PM 21819968
ER
PT J
AU Ba, XL
Hadjiargyrou, M
DiMasi, E
Meng, YZ
Simon, M
Tan, ZK
Rafailovich, MH
AF Ba, Xiaolan
Hadjiargyrou, Michael
DiMasi, Elaine
Meng, Yizhi
Simon, Marcia
Tan, Zhongkui
Rafailovich, Miriam H.
TI The role of moderate static magnetic fields on biomineralization of
osteoblasts on sulfonated polystyrene films
SO BIOMATERIALS
LA English
DT Article
DE Static magnetic fields; Sulfonated polystyrene copolymer; Osteoblast;
Alkaline phosphate; Osteocalcin; Hydroxyapatite
ID BONE-FORMATION; IN-VITRO; PROLIFERATION; ORIENTATION; SURFACE; SIZE
AB We have investigated the effects of moderate static magnetic fields (SMFs) on murine MC3T3-E1 osteoblasts, and found that they enhance proliferations and promote differentiation. The increase in proliferation rates in response to SMFs was greater in cultures grown on partially sulfonated polytstyrene (SPS, degree of sulfonation: 33%) than in cultures grown on tissue culture plastic. We have previously shown that when the degree of sulfonation exceeded a critical value (12%) [1], spontaneous fibrillogenesis occured which allowed for direct observation of the ECM fibrillar organization under the influence of external fields. We found that the ECM produced in cultures grown on the SPS in the presence of the SMFs assembled into a lattice with larger dimensions than the ECM of the cultures grown in the absence of SMFs. During the early stages of the biomineralization process (day 7), the SMF exposed cultures also templated mineral deposition more rapidly than the control cultures. The rapid response is attributed to orientation of diamagnetic ECM proteins already present in the serum, which could then initiate further cellular signaling. SMFs also influenced late stage osteoblast differentiation as measured by the increased rate of osteocalcin secretion and gene expression beginning 15 days after SFM exposure. This correlated with a large increase in mineral deposition, and in cell modulus. GIXD and EDXS analysis confirmed early deposition of crystalline hydroxyapatite. Previous studies on the effects of moderate SMF had focused on cellular gene and protein expression, but did not consider the organization of the ECM fibers. Our ability to form these fibers has allowed us explore this additional effect and highlight its significance in the initiation of the biomineralization process. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Ba, Xiaolan; Meng, Yizhi; Rafailovich, Miriam H.] SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA.
[Hadjiargyrou, Michael] SUNY Stony Brook, Dept Biomed Engn, Stony Brook, NY 11794 USA.
[DiMasi, Elaine] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
[Simon, Marcia] SUNY Stony Brook, Sch Dent Med, Dept Oral Biol & Pathol, Stony Brook, NY 11794 USA.
[Tan, Zhongkui] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
RP Ba, XL (reprint author), SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA.
EM xba@ic.sunysb.edu; mrafailovich@notes.cc.sunysb.edu
RI Meng, Yizhi/B-1233-2008
FU NSF-MRSEC [DMR0606387]; Brookhaven National Laboratory-Stony Brook
University; USDOE [DE-AC02-98CH10886]
FX This work is supported by NSF-MRSEC Program (DMR0606387), Brookhaven
National Laboratory-Stony Brook University Seed Grand Program. Research
carried out in part at the Center for Functional Nanomaterials and
National Synchrotron Light Source, Brookhaven National Laboratory, which
is supported under USDOE Contract DE-AC02-98CH10886.
NR 27
TC 9
Z9 9
U1 0
U2 17
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0142-9612
J9 BIOMATERIALS
JI Biomaterials
PD NOV
PY 2011
VL 32
IS 31
BP 7831
EP 7838
DI 10.1016/j.biomaterials.2011.06.053
PG 8
WC Engineering, Biomedical; Materials Science, Biomaterials
SC Engineering; Materials Science
GA 822TN
UT WOS:000295072600009
PM 21820169
ER
PT J
AU Liu, W
Zhang, XH
Xu, G
Bradford, PD
Wang, X
Zhao, HB
Zhang, YY
Jia, QX
Yuan, FG
Li, QW
Qiu, YP
Zhu, YT
AF Liu, Wei
Zhang, Xiaohua
Xu, Geng
Bradford, Philip D.
Wang, Xin
Zhao, Haibo
Zhang, Yingying
Jia, Quanxi
Yuan, Fuh-Gwo
Li, Qingwen
Qiu, Yiping
Zhu, Yuntian
TI Producing superior composites by winding carbon nanotubes onto a mandrel
under a poly(vinyl alcohol) spray
SO CARBON
LA English
DT Article
ID SHEET/BISMALEIMIDE NANOCOMPOSITES; MECHANICAL-PROPERTIES; MACROSCOPIC
FIBERS; POLYMER COMPOSITES; HIGH-STRENGTH; PERFORMANCE; LOAD
AB A simple method for processing high-performance carbon nanotube (CNT)/poly(vinyl alcohol) (PVA) composites by coupling the spraying of a PVA solution with the continuous winding of CNT sheets from an array onto a rotating mandrel is reported. This method allows the CNT composites to have a high CNT volume fraction, while having a high degree of alignment, long CNTs, and good integration with the matrix, which are extremely difficult to realize simultaneously by other processes. As a result, the composites have a toughness, strength and electrical conductivity up to 100 J/g, 1.8 GPa and 780 S/cm, respectively. Such a one-step synthesis process is promising for industrial productions and also works for different types of polymers. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Zhang, Xiaohua; Xu, Geng; Li, Qingwen] Suzhou Inst Nanotech & Nanobion, Suzhou 215123, Peoples R China.
[Liu, Wei; Qiu, Yiping] Donghua Univ, Coll Text, Shanghai 201620, Peoples R China.
[Liu, Wei; Bradford, Philip D.; Wang, Xin; Zhao, Haibo; Yuan, Fuh-Gwo; Zhu, Yuntian] N Carolina State Univ, Raleigh, NC 27695 USA.
[Zhang, Yingying; Jia, Quanxi] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Li, QW (reprint author), Suzhou Inst Nanotech & Nanobion, Suzhou 215123, Peoples R China.
EM qwli2007@sinano.ac.cn; ytzhu@ncsu.edu
RI Zhu, Yuntian/B-3021-2008; Wang, Xin/F-3130-2011; Zhang,
Yingying/A-7260-2009; Zhang, Xiaohua/C-9093-2011;
OI Zhu, Yuntian/0000-0002-5961-7422; Zhang, Yingying/0000-0002-8448-3059;
Zhang, Xiaohua/0000-0001-9008-791X; Bradford, Philip/0000-0002-4448-5033
FU Laboratory Directed Research and Development (LDRD); Center for
Integrated Nanotechnologies (CINT) at Los Alamos National Laboratory;
Chinese Ministry of Science and Technology [2009DFB50150]
FX One author (W.L.) is grateful to Chinese Scholarship Council for
encouragement. This study was also supported by the Laboratory Directed
Research and Development (LDRD) Program and the Center for Integrated
Nanotechnologies (CINT) at Los Alamos National Laboratory, North
Carolina Space Grant, and International Collaboration Project
(2009DFB50150) by Chinese Ministry of Science and Technology.
NR 30
TC 50
Z9 52
U1 10
U2 66
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0008-6223
J9 CARBON
JI Carbon
PD NOV
PY 2011
VL 49
IS 14
BP 4786
EP 4791
DI 10.1016/j.carbon.2011.06.089
PG 6
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 825UT
UT WOS:000295308300021
ER
PT J
AU Hemrick, JG
Lara-Curzio, E
Loveland, ER
Sharp, KW
Schartow, R
AF Hemrick, James G.
Lara-Curzio, Edgar
Loveland, Erick R.
Sharp, Keith W.
Schartow, Robert
TI Woven graphite fiber structures for use in ultra-light weight heat
exchangers
SO CARBON
LA English
DT Article
AB Lightweight, robust woven graphite-fiber structures were developed for heat exchangers which provide high conductivity paths along the direction of the graphite fibers. These structures were produced and characterized for air permeability/pressure drop and thermal (heat transfer) performance. Results indicate that the materials are suitable for use in ultra-light weight heat exchanger applications such as vehicle radiators or other areas where light weight, compact, conformable heat transfer devices are needed. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Hemrick, James G.; Lara-Curzio, Edgar] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Sharp, Keith W.] 3TEX Inc, Cary, NC 27511 USA.
[Schartow, Robert] Avl Technol, Asheville, NC 28801 USA.
[Loveland, Erick R.] Y 12 Natl Secur Complex, Oak Ridge, TN 37831 USA.
RP Hemrick, JG (reprint author), Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA.
EM hemrickjg@ornl.gov
FU Department of Energy Office of Energy Efficiency and Renewable Energy
FX This work was supported by the Department of Energy Office of Energy
Efficiency and Renewable Energy.
NR 15
TC 5
Z9 6
U1 3
U2 11
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0008-6223
J9 CARBON
JI Carbon
PD NOV
PY 2011
VL 49
IS 14
BP 4820
EP 4829
DI 10.1016/j.carbon.2011.06.094
PG 10
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 825UT
UT WOS:000295308300025
ER
PT J
AU Li, WJ
Law, ME
Westmoreland, PR
Kasper, T
Hansen, N
Kohse-Hoinghaus, K
AF Li, Wenjun
Law, Matthew E.
Westmoreland, Phillip R.
Kasper, Tina
Hansen, Nils
Kohse-Hoeinghaus, Katharina
TI Multiple benzene-formation paths in a fuel-rich cyclohexane flame
SO COMBUSTION AND FLAME
LA English
DT Article
DE Cyclohexane; Benzene; Mechanism; Oxidation; MBMS; Aromatics
ID PHOTOIONIZATION CROSS-SECTIONS; HYDROCARBON GROWTH-PROCESSES;
LOW-TEMPERATURE OXIDATION; BEAM MASS-SPECTROMETRY; GAS-PHASE OXIDATION;
LOW-PRESSURE FLAMES; SHOCK-TUBE; COMBUSTION CHEMISTRY; PROPARGYL
RADICALS; NONPREMIXED FLAMES
AB Detailed data and modeling of cyclohexane flames establish that a mixture of pathways contributes to benzene formation and that this mixture changes with stoichiometry. Mole-fraction profiles are mapped for more than 40 species in a fuel-rich, premixed flat flame (phi = 2.0, cyclohexane/O(2)/30% Ar, 30 Torr, 50.0 cm/s) using molecular-beam mass spectrometry with VUV-photoionization at the Advanced Light Source of the Lawrence Berkeley National Laboratory. The use of a newly constructed set of reactions leads to an excellent simulation of this flame and an earlier stoichiometric flame (M.E. Law et al., Proc. Combust. Inst. 31 (2007) 565-573), permitting analysis of the contributing mechanistic pathways. Under stoichiometric conditions, benzene formation is found to be dominated by stepwise dehydrogenation of the six-membered ring with cyclohexadienyl reversible arrow benzene + H being the final step. This finding is in accordance with recent literature. Dehydrogenation of the six-membered ring is also found to be a dominant benzene-formation route under fuel-rich conditions, at which H(2) elimination from 1,3-cyclohexadiene contributes even more than cyclohexadienyl decomposition. Furthermore, at the fuel-rich condition, additional reactions make contributions, including the direct route via 2C(3)H(3) reversible arrow benzene and more importantly the H-assisted isomerization of fulvene formed from i-/n-C(4)H(5) + C(2)H(2), C(3)H(3) + allyl, and C(3)H(3) + C(3)H(3). Smaller contributions towards benzene formation arise from C(4)H(3) + C(2)H(3), 1,3-C(4)H(6) + C(2)H(3), and potentially via n-C(4)H(5) + C(2)H(2). This diversity of pathways is shown to result nominally from the temperature and the concentrations of benzene precursors present in the benzene-formation zone, which are ultimately due to the feed stoichiometry. (C) 2011 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
C1 [Li, Wenjun; Westmoreland, Phillip R.] N Carolina State Univ, Dept Chem & Biomol Engn, Raleigh, NC 27695 USA.
[Law, Matthew E.; Westmoreland, Phillip R.] Univ Massachusetts, Dept Chem Engn, Amherst, MA 01003 USA.
[Law, Matthew E.; Kasper, Tina; Hansen, Nils] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
[Kohse-Hoeinghaus, Katharina] Univ Bielefeld, Dept Chem, D-33615 Bielefeld, Germany.
RP Westmoreland, PR (reprint author), N Carolina State Univ, Dept Chem & Biomol Engn, Raleigh, NC 27695 USA.
EM phil.westmoreland@ncsu.edu; nhansen@sandia.gov
RI Kohse-Hoinghaus, Katharina/A-3867-2012; Hansen, Nils/G-3572-2012;
Kasper, Tina/A-2975-2017
OI Kasper, Tina/0000-0003-3993-5316
FU Office of Basic Energy Sciences (BES), U.S. Department of Energy (USDOE)
[DE-FG02-91ER14192]; DFG [KO 1363/18-3]; NNSA [DE-AC04-94-AL85000];
USDOE/BES [DE-AC02-05CH11231]; National Center for Supercomputing
Applications [TG-CTS090056]
FX We thank Paul Fugazzi and Sarah Ferrell for technical assistance and
Juan Wang and Terrill A. Cool for their contributions in collecting the
flame and cross-section data. We are also grateful to James A. Miller
for sharing his reaction set, which we used to test our results. This
work was supported by the Office of Basic Energy Sciences (BES), U.S.
Department of Energy (USDOE), under DE-FG02-91ER14192 (PRW) and by the
DFG under KO 1363/18-3 (KKH). Sandia is a multi-program laboratory
operated by Sandia Corporation for NNSA under contract
DE-AC04-94-AL85000. The Advanced Light Source is supported by USDOE/BES
under DE-AC02-05CH11231. This work was partially supported by the
National Center for Supercomputing Applications under grant number
TG-CTS090056 and used the Cobalt supercomputer.
NR 76
TC 23
Z9 25
U1 5
U2 46
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0010-2180
J9 COMBUST FLAME
JI Combust. Flame
PD NOV
PY 2011
VL 158
IS 11
BP 2077
EP 2089
DI 10.1016/j.combustflame.2011.03.014
PG 13
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
Engineering, Chemical; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA 827JK
UT WOS:000295424600001
ER
PT J
AU Prager, J
Najm, HN
Valorani, M
Goussis, DA
AF Prager, J.
Najm, H. N.
Valorani, M.
Goussis, D. A.
TI Structure of n-heptane/air triple flames in partially-premixed mixing
layers
SO COMBUSTION AND FLAME
LA English
DT Article
DE Edge flames; Triple flames; n-heptane
ID SKELETAL MECHANISM GENERATION; SEMIIMPLICIT NUMERICAL SCHEME; AIR EDGE
FLAME; DIFFUSION FLAMES; REACTING FLOW; CSP METHOD; AXISYMMETRICAL JET;
METHANE; PROPAGATION; OXIDATION
AB Results of a detailed numerical analysis of an n-heptane/air edge flame are presented. The equations of a low-Mach number reacting flow are solved in a two-dimensional domain using detailed models for species transport and chemical reactions. The reaction mechanism involves 560 species and 2538 reversible reactions. We consider an edge flame that is established in a mixing layer with a uniform velocity field. The mixing layer spans the equivalence ratios between pure air and 3.5. The detailed model enables us to analyze the chemical structure of the n-heptane edge flame. We identify major species profiles, discuss reactions causing the heat-release, and exploit Computational Singular Perturbation (CSP) to discuss the main fuel-consumption pathways and the structure of explosive modes in the edge flame. This analysis is performed for several regions in the edge flame to discuss the different processes at work in the premixed branches and the trailing diffusion flame. We compare different cuts through the 2D edge flame to canonical 1D premixed and diffusion flames. We also analyze the accuracy of a skeletal mechanism which was previously developed using CSP from homogeneous ignition calculations of n-heptane and show that a significant reduction in size of the mechanism can be achieved without a significant decrease in accuracy of the edge flame computation. This skeletal mechanism is then used to study the effects of increasing the equivalence ratio in the partially-premixed fuel stream. (C) 2011 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
C1 [Prager, J.; Najm, H. N.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Valorani, M.] Univ Roma La Sapienza, Rome, Italy.
[Goussis, D. A.] Natl Tech Univ Athens, Athens, Greece.
RP Prager, J (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA.
EM jprager@sandia.gov
OI VALORANI, Mauro/0000-0002-8260-6297
FU US Department of Energy (DOE), Office of Basic Energy Sciences (BES)
Division of Chemical Sciences, Geosciences, and Biosciences; United
States Department of Energy [DE-AC04-94-AL85000]; Italian Ministry of
University and Research (MIUR); Office of Science of the US Department
of Energy [DE-AC02-05CH11231]
FX This work was supported by the US Department of Energy (DOE), Office of
Basic Energy Sciences (BES) Division of Chemical Sciences, Geosciences,
and Biosciences. Sandia National Laboratories is a multiprogram
laboratory operated by Sandia Corporation, a Lockheed Martin Company,
for the United States Department of Energy under Contract No.
DE-AC04-94-AL85000. MV acknowledges the support of the Italian Ministry
of University and Research (MIUR). 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.
NR 58
TC 16
Z9 16
U1 1
U2 10
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0010-2180
J9 COMBUST FLAME
JI Combust. Flame
PD NOV
PY 2011
VL 158
IS 11
BP 2128
EP 2144
DI 10.1016/j.combustflame.2011.03.017
PG 17
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
Engineering, Chemical; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA 827JK
UT WOS:000295424600005
ER
PT J
AU Dahms, RN
Drake, MC
Fansler, TD
Kuo, TW
Peters, N
AF Dahms, Rainer N.
Drake, Michael C.
Fansler, Todd D.
Kuo, T. -W.
Peters, N.
TI Understanding ignition processes in spray-guided gasoline engines using
high-speed imaging and the extended spark-ignition model SparkCIMM. Part
A: Spark channel processes and the turbulent flame front propagation
SO COMBUSTION AND FLAME
LA English
DT Article
DE Engine; Direct-injection; Imaging; Ignition; Stratified
ID LARGE-EDDY SIMULATION; BURNING VELOCITIES; COMBUSTION
AB Recent high-speed imaging of ignition processes in spray-guided gasoline engines has motivated the development of the physically-based spark channel ignition monitoring model SparkCIMM, which bridges the gap between a detailed spray/vaporization model and a model for fully developed turbulent flame front propagation. Previously, both SparkCIMM and high-speed optical imaging data have shown that, in spray-guided engines, the spark plasma channel is stretched and wrinkled by the local turbulence, excessive stretching results in spark re-strikes, large variations occur in turbulence intensity and local equivalence ratio along the spark channel, and ignition occurs in localized regions along the spark channel (based upon a Karlovitz-number criteria).
In this paper, SparkCIMM is enhanced by: (1) an extended flamelet model to predict localized ignition spots along the spark plasma channel, (2) a detailed chemical mechanism for gasoline surrogate oxidation, and (3) a formulation of early flame kernel propagation based on the G-equation theory that includes detailed chemistry and a local enthalpy flamelet model to consider turbulent enthalpy fluctuations. In agreement with new experimental data from broadband spark and hot soot luminosity imaging, the model establishes that ignition prefers to occur in fuel-rich regions along the spark channel. In this highly-turbulent highly-stratified environment, these ignition spots burn as quasi-laminar flame kernels. In this paper, the laminar burning velocities and flame thicknesses of these kernels are calculated along the mean turbulent flame front, using tabulated detailed chemistry flamelets over a wide range of stoichiometry and exhaust gas dilution. The criteria for flame propagation include chemical (cross-over temperature based) and turbulence (Karlovitz-number based) effects. Numerical simulations using ignition models of different physical complexity demonstrate the significance of turbulent mixture fraction and enthalpy fluctuations in the prediction of early flame front propagation. A third paper on SparkCIMM (companion paper to this one) focuses on the importance of molecular fuel properties and flame curvature on early flame propagation and compares computed flame propagation with high speed combustion imaging and computed heat release rates with cylinder pressure analysis.
The goals of SparkCIMM development are to (a) enhance our fundamental understanding of ignition and combustion processes in highly-turbulent highly-stratified engine conditions, (b) incorporate that understanding into a physically-based submodel for RANS engine calculations that can be reliably used without modification for a wide range of conditions (i.e., homogeneous or stratified, low or high turbulence, low or high dilution), and (c) provide a submodel that can be incorporated into a future LES model for physically-based modeling of cycle-to-cycle variability in engines. Published by Elsevier Inc. on behalf of The Combustion Institute.
C1 [Dahms, Rainer N.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
[Drake, Michael C.; Fansler, Todd D.; Kuo, T. -W.] Gen Motors Global Res & Dev, Prop Syst Res Lab, Warren, MI USA.
[Peters, N.] Rhein Westfal TH Aachen, Inst Combust Technol, Aachen, Germany.
RP Dahms, RN (reprint author), Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
EM Rndahms@sandia.gov
FU General Motors Company
FX The authors are grateful for numerous helpful discussions with Ronald R.
Grover and Mark S. Huebler from the General Motors Company and with
Gunter Paczko from the Institute for Combustion Technology from RWTH
Aachen University. Mark S. Huebler from the General Motors Company has
generated the computational meshes for the simulations. This work was
funded by the General Motors Company. Fansler and Drake acknowledge the
outstanding GM summer interns Isabell Duwel, Frank Zimmermann, Stephen
Busch, Benjamin Bohm and Kevin Peterson and technicians Jason Ratkowski
and Jerry Silvas who have contributed greatly to the experimental
aspects of this paper.
NR 54
TC 28
Z9 28
U1 4
U2 32
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0010-2180
J9 COMBUST FLAME
JI Combust. Flame
PD NOV
PY 2011
VL 158
IS 11
BP 2229
EP 2244
DI 10.1016/j.combustflame.2011.03.012
PG 16
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
Engineering, Chemical; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA 827JK
UT WOS:000295424600014
ER
PT J
AU Dahms, RN
Drake, MC
Fansler, TD
Kuo, TW
Peters, N
AF Dahms, Rainer N.
Drake, Michael C.
Fansler, Todd D.
Kuo, T. -W.
Peters, N.
TI Understanding ignition processes in spray-guided gasoline engines using
high-speed imaging and the extended spark-ignition model SparkCIMM Part
B: Importance of molecular fuel properties in early flame front
propagation
SO COMBUSTION AND FLAME
LA English
DT Article
DE Engine; Direct-injection; Imaging; Ignition; Stratified
ID LARGE-EDDY SIMULATION; PREMIXED TURBULENT COMBUSTION; LAMINAR BURNING
VELOCITIES; MARKSTEIN NUMBERS; HYDROGEN/AIR FLAMES; STRETCH; CURVATURE;
TRANSPORT; PRESSURE
AB Recent high-speed imaging of ignition processes in spray-guided gasoline engines has motivated the development of the physically-based spark channel ignition monitoring model SparkCIMM, which bridges the gap between a detailed spray and vaporization model and a model for fully developed turbulent combustion. Previously, both SparkCIMM and high-speed optical imaging data have shown that, in spray-guided engines, large variations in turbulence intensity, equivalence ratio, and enthalpy along the stretched and wrinkled spark plasma channel favor localized ignition spot formations in rich-mixture regions. In combination with strong local flow velocity, multiple successful ignition events along the re-striking spark lead to early non-spherical turbulent flame fronts.
In this paper, SparkCIMM is enhanced by: (1) criteria to capture localized flame extinction phenomena, (2) a formulation of early flame kernel propagation based on the G-equation theory that includes effects of non-unity Lewis numbers, and (3) an extended equation to compute turbulent burning velocities of stretched flames in stratified mixtures. Localized rich ignition along the spark leads to early flames, whose propagation is, due to initially small turbulent Damkohler numbers, significantly influenced by molecular fuel properties. The analysis reveals that non-unity Lewis number curvature effects, intensified by heavy dilution by exhaust gas recirculation, strongly affect the early flame-kernel development in spray-guided gasoline engines. In particular, these effects significantly bias the flammability limit of flame kernels towards rich-mixtures while inhibiting their propagation in lean regions. Favorable initial conditions for combustion are found in rich-mixture regions, albeit in the presence of substantial equivalence ratio fluctuations and scalar dissipation rates.
This paper demonstrates that the full complexity of the model equations developed here is required to reproduce the characteristic experimental features (spark channel stretching, multiple re-strikes, localized flame kernel formation, and early turbulent flame front corrugation) of spray-guided ignition phenomena. Published by Elsevier Inc. on behalf of The Combustion Institute.
C1 [Dahms, Rainer N.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
[Drake, Michael C.; Fansler, Todd D.; Kuo, T. -W.] Gen Motors Global Res & Dev, Prop Syst Res Lab, Warren, MI USA.
[Peters, N.] Rhein Westfal TH Aachen, Inst Combust Technol, Aachen, Germany.
RP Dahms, RN (reprint author), Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
EM Rndahms@sandia.gov
FU General Motors Company
FX The authors are grateful for numerous helpful discussions with Ronald R.
Grover and Mark S. Huebler from the General Motors Company and with
Gunter Paczko from the Institute for Combustion Technology from
RWTH-Aachen University. Mark S. Huebler from the General Motors Company
has generated the computational meshes for the simulations. This work
was funded by the General Motors Company. Fansler and Drake acknowledge
the outstanding GM summer interns Isabell Duwel, Frank Zimmermann,
Stephen Busch, Benjamin Bohm, and Kevin Peterson and technicians Jason
Ratkowski and Jerry Silvas who have contributed greatly to the
experimental aspects of this paper.
NR 53
TC 15
Z9 15
U1 1
U2 25
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0010-2180
J9 COMBUST FLAME
JI Combust. Flame
PD NOV
PY 2011
VL 158
IS 11
BP 2245
EP 2260
DI 10.1016/j.combustflame.2011.04.003
PG 16
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
Engineering, Chemical; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA 827JK
UT WOS:000295424600015
ER
PT J
AU Not, T
Ziberna, F
Vatta, S
Quaglia, S
Martelossi, S
Villanacci, V
Marzari, R
Florian, F
Vecchiet, M
Sulic, AM
Ferrara, F
Bradbury, A
Sblattero, D
Ventura, A
AF Not, Tarcisio
Ziberna, Fabiana
Vatta, Serena
Quaglia, Sara
Martelossi, Stefano
Villanacci, Vincenzo
Marzari, Roberto
Florian, Fiorella
Vecchiet, Monica
Sulic, Ana-Marija
Ferrara, Fortunato
Bradbury, Andrew
Sblattero, Daniele
Ventura, Alessandro
TI Cryptic genetic gluten intolerance revealed by intestinal
antitransglutaminase antibodies and response to gluten-free diet
SO GUT
LA English
DT Article
ID TERM-FOLLOW-UP; CELIAC-DISEASE; TISSUE TRANSGLUTAMINASE; AUTOIMMUNE
DISORDERS; INCREASING PREVALENCE; VILLOUS ATROPHY; AUTOANTIBODIES;
RELATIVES; CHILDREN; CRITERIA
AB Background and objective Antitransglutaminase (anti-TG2) antibodies are synthesised in the intestine and their presence seems predictive of future coeliac disease (CD). This study investigates whether mucosal antibodies represent an early stage of gluten intolerance even in the absence of intestinal damage and serum anti-TG2 antibodies.
Methods This study investigated 22 relatives of patients with CD genetically predisposed to gluten intolerance but negative for both serum anti-TG2 antibodies and intestinal abnormalities. Fifteen subjects were symptomatic and seven were asymptomatic. The presence of immunoglobulin A anti-TG2 antibodies in the intestine was studied by creating phage-antibody libraries against TG-2. The presence of intestinal anti-TG2 antibodies was compared with the serum concentration of the intestinal fatty acid-binding protein (I-FABP), a marker for early intestinal mucosal damage. The effects of a 12-month gluten-free diet on anti-TG2 antibody production and the subjects' clinical condition was monitored. Twelve subjects entered the study as controls.
Results The intestinal mucosa appeared normal in 18/22; 4 had a slight increase in intraepithelial lymphocytes. Mucosal anti-TG2 antibodies were isolated in 15/22 subjects (68%); in particular symptomatic subjects were positive in 13/15 cases and asymptomatic subjects in 2/7 cases (p=0.01). No mucosal antibodies were selected from the controls' biopsies. There was significant correlation between the presence of intestinal anti-TG2 antibodies and positive concentrations of I-FABP (p=0.0008). After a gluten-free diet, 19/22 subjects underwent a second intestinal biopsy, which showed that anti-TG2 antibodies had disappeared in 12/15 (p=0.002), while I-FABP decreased significantly (p<0.0001). The diet resolved both extraintestinal and intestinal symptoms.
Conclusions A new form of genetic-dependent gluten intolerance has been described in which none of the usual diagnostic markers is present. Symptoms and intestinal anti-TG2 antibodies respond to a gluten free-diet. The detection of intestinal anti-TG2 antibodies by the phage-antibody libraries has an important diagnostic and therapeutic impact for the subjects with gluten-dependent intestinal or extraintestinal symptoms.
C1 [Not, Tarcisio; Ziberna, Fabiana; Vatta, Serena; Quaglia, Sara; Martelossi, Stefano; Ferrara, Fortunato; Ventura, Alessandro] Ist Infanzia Burlo Garofolo, I-34100 Trieste, Italy.
[Not, Tarcisio; Ziberna, Fabiana; Vatta, Serena; Quaglia, Sara; Martelossi, Stefano; Ferrara, Fortunato; Ventura, Alessandro] Univ Trieste, Dept Reprod Dev & Publ Hlth Sci, Trieste, Italy.
[Villanacci, Vincenzo] Univ Brescia, Dept Pathol pedali Civili, Brescia, Italy.
[Marzari, Roberto; Florian, Fiorella; Vecchiet, Monica; Sulic, Ana-Marija] Univ Trieste, Dept Life Sci, Trieste, Italy.
[Bradbury, Andrew] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM USA.
[Sblattero, Daniele] Univ Piemonte Orientale, IRCAD, Novara, Italy.
[Sblattero, Daniele] Univ Piemonte Orientale, Dept Med Sci, Novara, Italy.
RP Not, T (reprint author), Ist Infanzia Burlo Garofolo, Via Istria 65-1, I-34100 Trieste, Italy.
EM not@burlo.trieste.it
OI Not, Tarcisio/0000-0003-1059-3009; Bradbury, Andrew/0000-0002-5567-8172;
Ventura, Alessandro/0000-0002-4657-1760
FU Institute of Child Health IRCCS 'Burlo Garofolo' [35/07RF]; EC Marie
Curie Research Training Network [MRTN-CT-2006-036032]; Compagnia
SanPaolo
FX This study was supported by the following grants: grant 35/07RF from the
Institute of Child Health IRCCS 'Burlo Garofolo' to TN, Compagnia
SanPaolo to DS and EC Marie Curie Research Training Network
(MRTN-CT-2006-036032) to RM.
NR 36
TC 23
Z9 24
U1 0
U2 6
PU B M J PUBLISHING GROUP
PI LONDON
PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON WC1H 9JR, ENGLAND
SN 0017-5749
J9 GUT
JI Gut
PD NOV
PY 2011
VL 60
IS 11
BP 1487
EP 1493
DI 10.1136/gut.2010.232900
PG 7
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 827BF
UT WOS:000295399600007
PM 21471568
ER
PT J
AU Khanafer, K
Aithal, SM
AF Khanafer, K.
Aithal, S. M.
TI Fluid-dynamic and NOx computation in swirl burners
SO INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
LA English
DT Article
DE Numerical; Equilibrium; Swirl burners; NOx; Emissions; Newton-Raphson
ID COMBUSTION; MODELS; FLOWS; FILTRATION
AB Computational fluid dynamics simulations in a swirl combustor were coupled with chemical equilibrium calculations to evaluate the effects of swirl velocity and burner wall temperature on NOx formation. The fluid-dynamic variables such as velocity, temperature, pressure and species concentrations were obtained by using the finite-element commercial software FIDAP. The chemical equilibrium system under consideration comprised 16 reactions and 20 species. The reaction set included reactions responsible for formation of NOx and reactions believed to be responsible for soot formation in rich fuel-air mixtures. The Newton-Raphson method was used to solve the nonlinear system of equations describing the formation of equilibrium products in fuel-air mixtures. The main goal of this work was to develop a fast and robust computational approach to understand the impact of various design parameters on NOx formation in gas-fired swirl burners. The results showed that increasing swirl monotonically reduced CO and unburned hydrocarbons. The reduction was as high as 5 orders of magnitude. The exit plane NOx did not monotonically decrease with increasing swirl. NOx values initially increased with increasing swirl and then decreased. The procedure outlined in this paper has potential for evaluating new burner designs and operating conditions quickly and robustly. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Khanafer, K.] Univ Michigan, Dept Biomed Engn, Vasc Mech Lab, Ann Arbor, MI 48109 USA.
[Khanafer, K.] Univ Michigan, Vasc Surg Sect, Ann Arbor, MI 48109 USA.
[Aithal, S. M.] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
RP Khanafer, K (reprint author), Univ Michigan, Dept Biomed Engn, Vasc Mech Lab, Ann Arbor, MI 48109 USA.
EM khanafer@umich.edu; aithal@mcs.anl.gov
FU Office of Advanced Scientific Computing Research, Office of Science,
U.S. Department of Energy [DE-AC02-06CH11357]
FX One of the authors (S.M. Aithal) acknowledges part of the work was
supported by the Office of Advanced Scientific Computing Research,
Office of Science, U.S. Department of Energy, under Contract
DE-AC02-06CH11357.
NR 32
TC 13
Z9 15
U1 2
U2 7
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0017-9310
J9 INT J HEAT MASS TRAN
JI Int. J. Heat Mass Transf.
PD NOV
PY 2011
VL 54
IS 23-24
BP 5030
EP 5038
DI 10.1016/j.ijheatmasstransfer.2011.07.017
PG 9
WC Thermodynamics; Engineering, Mechanical; Mechanics
SC Thermodynamics; Engineering; Mechanics
GA 823IO
UT WOS:000295115900027
ER
PT J
AU Delmore, JE
Snyder, DC
Tranter, T
Mann, NR
AF Delmore, James E.
Snyder, Darin C.
Tranter, Troy
Mann, Nick R.
TI Cesium isotope ratios as indicators of nuclear power plant operations
SO JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
LA English
DT Article
DE Radioactive cesium; Reactor operations; Sample
AB There are multiple paths by which radioactive cesium can reach the effluent from reactor operations. The radioactive (135)Cs/(137)Cs ratios are controlled by these paths. In an effort to better understand the origin of this radiation, these (135)Cs/(137)Cs ratios in effluents from three power reactor sites have been measured in offsite samples. These ratios are different from global fallout by up to six fold and as such cannot have a significant component from this source. A cesium ratio for a sample collected outside of the plant boundary provides integration over the operating life of the reactor. A sample collected inside the plant at any given time can be much different from this lifetime ratio. The measured cesium ratios vary significantly for the three reactors and indicate that the multiple paths have widely varying levels of contributions. There are too many ways these isotopes can fractionate to be useful for quantitative evaluations of operating parameters in an offsite sample, although it may be possible to obtain limited qualitative information for an onsite sample. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Delmore, James E.; Snyder, Darin C.; Tranter, Troy; Mann, Nick R.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Delmore, JE (reprint author), Idaho Natl Lab, POB 1625, Idaho Falls, ID 83415 USA.
EM James.Delmore@inl.gov
RI Snyder, Darin/B-6863-2017
OI Snyder, Darin/0000-0001-8104-4248
FU U.S. Government under U.S. Department of Energy Idaho Operations Office
[DE-AC07-05ID14517]
FX This manuscript has been authored by a contractor of the U.S. Government
under U.S. Department of Energy Idaho Operations Office Contract No.
DE-AC07-05ID14517. The U.S. Government retains and the publisher, by
accepting the article for publication, acknowledges that the U.S.
Government retains a nonexclusive, paid-up, irrevocable, world-wide
license to publish or reproduce the published form of this manuscript,
or allow others to do so, for U.S. Government purposes.
NR 6
TC 20
Z9 21
U1 1
U2 12
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0265-931X
J9 J ENVIRON RADIOACTIV
JI J. Environ. Radioact.
PD NOV
PY 2011
VL 102
IS 11
BP 1008
EP 1011
DI 10.1016/j.jenvrad.2011.06.013
PG 4
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 823EF
UT WOS:000295104600004
PM 21816522
ER
PT J
AU Ravindra, NM
Michael, N
Narayan, R
Kim, CU
Krumdick, G
AF Ravindra (Ravi), Nuggehalli M.
Michael, Nancy
Narayan, Roger
Kim, Choong-Un
Krumdick, Gregory
TI Foreword
SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND
MATERIALS SCIENCE
LA English
DT Editorial Material
C1 [Ravindra (Ravi), Nuggehalli M.] NJIT, Newark, NJ 07102 USA.
[Michael, Nancy; Kim, Choong-Un] UTexas Arlington, Arlington, TX USA.
[Narayan, Roger] Univ N Carolina, Raleigh, NC USA.
[Narayan, Roger] NCSU, Raleigh, NC USA.
[Krumdick, Gregory] ANL, Lemont, IL USA.
RP Ravindra, NM (reprint author), NJIT, Newark, NJ 07102 USA.
EM nmravindra@gmail.com
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1073-5623
J9 METALL MATER TRANS A
JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci.
PD NOV
PY 2011
VL 42A
IS 11
BP 3249
EP 3249
DI 10.1007/s11661-010-0582-y
PG 1
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 822IV
UT WOS:000295038900003
ER
PT J
AU Schneider, J
Dong, L
Howe, JY
Meyer, HM
AF Schneider, Judy
Dong, Lei
Howe, Jane Y.
Meyer, Harry M., III
TI Microstructural Characterization of Ti-6Al-4V Metal Chips by Focused Ion
Beam and Transmission Electron Microscopy
SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND
MATERIALS SCIENCE
LA English
DT Article
ID ADIABATIC SHEAR LOCALIZATION; MECHANICAL-PROPERTIES; TITANIUM; ALLOY;
DEFORMATION; DEPENDENCE; EVOLUTION; STRAIN; HEAT
AB During machining, the cutting surface of a metal is subjected to high strain rates and temperatures. Due to the small mass of the formed chip, the metal is rapidly quenched, preserving the as-machined microstructure. These extreme conditions are reported to be favorable to form nanograin or ultrafine-grain microstructures. However, detailed investigation of this region is problematic due to the size of the chips and the difficulty in preserving the cutting surface microstructure during traditional transmission electron microscopy (TEM) preparation. This study investigates the use of focused ion beam (FIB) specimen preparation to preserve and TEM to image the microstructure of the secondary deformation zone (SDZ) at the cutting surface in chips of Ti-6Al-4V formed during machining. Use of the FIB allowed precise extraction of a side or transverse view specimen, which preserved the cutting surface to reveal an inhomogeneous microstructure resulting from the nonuniform distribution of strain, strain rate, and temperature. Initial imaging of a conventional TEM foil prepared from the plan view of the cutting surface revealed microstructures ranging from heavily textured to regions of fine grains. Using FIB preparation of a transverse foil, a layered microstructure was observed revealing a variation of fine grains near the cutting surface, which transitioned to coarse grains toward the free surface. At the cutting surface, a 10-nm-thick recrystallized layer was observed capping a 20-nm-thick amorphous layer.
C1 [Schneider, Judy; Dong, Lei] Mississippi State Univ, Dept Mech Engn, Mississippi State, MS 39762 USA.
[Howe, Jane Y.; Meyer, Harry M., III] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Schneider, J (reprint author), Mississippi State Univ, Dept Mech Engn, Mississippi State, MS 39762 USA.
EM schneider@me.msstate.edu
RI Howe, Jane/G-2890-2011
FU AFOSR [FA9550-07-1-0282]; Lockheed Martin/MAF; Division of Scientific
User Facilities, Office of Basic Energy Sciences, United States
Department of Energy; NSF-IMR [DMR.0216703, 02070615]
FX The authors acknowledge the financial support provided, in part, by
AFOSR Grant No. FA9550-07-1-0282, under the direction of Dr. Joan
Fuller, and the Lockheed Martin/MAF, under the direction of Messrs.
Randy Brown and Zhixian (Tim) Li. A portion of this research was
conducted at the SHaRE User Facility, which is sponsored by the Division
of Scientific User Facilities, Office of Basic Energy Sciences, United
States Department of Energy. The FE-SEM at MSU was purchased under
NSF-IMR Grant Nos. DMR.0216703 and 02070615.
NR 21
TC 3
Z9 3
U1 2
U2 8
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1073-5623
EI 1543-1940
J9 METALL MATER TRANS A
JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci.
PD NOV
PY 2011
VL 42A
IS 11
BP 3527
EP 3533
DI 10.1007/s11661-011-0765-1
PG 7
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 822IV
UT WOS:000295038900033
ER
PT J
AU Mills, E
Jacobson, A
AF Mills, Evan
Jacobson, Arne
TI From carbon to light: a new framework for estimating greenhouse gas
emissions reductions from replacing fuel-based lighting with LED systems
SO ENERGY EFFICIENCY
LA English
DT Article
DE Clean development mechanism; Energy efficiency; LED lighting; Carbon
emissions; Developing countries
AB There is considerable well-intended, yet wishful anticipation about reducing greenhouse gas emissions by replacing fuel-based lighting in the developing world with grid-independent light-emitting diode (LED) lighting systems. Most estimates gloss over important practical realities that stand to erode a genuinely significant potential. The Clean Development Mechanism (CDM) is the leading system for quantifying the benefits of such projects in developing countries and embodying them in a market-based platform for trading carbon credits. However, compliance with methodologies for highly decentralized, small-scale energy saving projects currently employed in the CDM is viewed by developers of as onerous, time-consuming, and costly. In recognition of the problem, the CDM has recently placed priority on improved methodologies for estimating carbon dioxide reductions from displacement of fuel-based lighting with energy-efficient alternatives. The over-arching aim is to maintain environmental integrity without stifling sustainable emission-reduction projects and programs in the field. This article informs this process by laying out a new framework that shifts the analytical focus from highly costly yet narrow and uncertain baseline estimations to simplified methods based primarily on deemed values that focus on replacement lighting system quality and performance characteristics. The result-many elements of which have been adopted in a new methodology approved by the CDM-is more structured and rigorous than methodologies used for LED projects in the past and yet simpler to implement, i.e., entailing fewer transaction costs. Applying this new framework, we find that some off-grid lighting technologies can be expected to yield little or no emissions reductions, while well-designed ones, using products independently certified to have high quality and durability, can generate significant reductions. Enfolding quality assurance within the proposed framework will help stem "market spoiling" currently underway in the developing world-caused by the introduction of substandard off-grid lighting products-thereby ensuring carbon reduction additionality (emissions reductions that would have not occurred in the absence of the CDM program).
C1 [Mills, Evan] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Jacobson, Arne] US DOE, Off Policy & Int Affairs, Washington, DC 20585 USA.
[Jacobson, Arne] Humboldt State Univ, Schatz Energy Res Ctr, Arcata, CA 95521 USA.
RP Mills, E (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM emills@lbl.gov
FU Blum Center for Developing Economies at UC Berkeley, through the US
Department of Energy [DE-AC02-05CH11231]
FX A longer version of this report was prepared at the request of The
United Nations Framework Convention on Climate Change (UNFCCC), Small
Scale Working Group of the Clean Development Mechanism (CDM) Executive
Board. This work was also supported by The Rosenfeld Fund of the Blum
Center for Developing Economies at UC Berkeley, through the US
Department of Energy under Contract No. DE-AC02-05CH11231. Art Rosenfeld
has been a key supporter of this work. This project benefitted from
valuable collaborations with Gaj Hegde of the UNFCCC Secretariat; Peter
Alstone, Kristen Radecsky, Jennifer Tracy, and Dustin Poppendieck at
Humboldt State University; Jessica Granderson, Jim Galvin, and Francis
Rubinstein at Lawrence Berkeley National Laboratory; and Maina Mumbi and
Francis Ngugi in Kenya. Steven Schiller of the CDM Small Scale Working
Group provided constructive review comments and consultation.
NR 44
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U1 1
U2 15
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 1570-646X
J9 ENERG EFFIC
JI Energy Effic.
PD NOV
PY 2011
VL 4
IS 4
BP 523
EP 546
DI 10.1007/s12053-011-9121-y
PG 24
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Environmental
Studies
SC Science & Technology - Other Topics; Energy & Fuels; Environmental
Sciences & Ecology
GA 819IZ
UT WOS:000294819900005
ER
PT J
AU Brownlee, C
Pegoraro, V
Shankar, S
McCormick, PS
Hansen, CD
AF Brownlee, Carson
Pegoraro, Vincent
Shankar, Siddharth
McCormick, Patrick S.
Hansen, Charles D.
TI Physically-Based Interactive Flow Visualization Based on Schlieren and
Interferometry Experimental Techniques
SO IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
LA English
DT Article
DE Scalar field data; GPUs and multicore architectures; flow visualization
AB Understanding fluid flow is a difficult problem and of increasing importance as computational fluid dynamics (CFD) produces an abundance of simulation data. Experimental flow analysis has employed techniques such as shadowgraph, interferometry, 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. Interferometry tracks changes in phase-shift resulting in bands appearing. 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 shadowgraph, schlieren and interferometry images of time-varying scalar fields derived from computational fluid dynamics 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. Applications of our method to multifield data and custom application-dependent color filter creation are explored. Results comparing this method to previous schlieren approximations are finally presented.
C1 [Brownlee, Carson; Hansen, Charles D.] Univ Utah, Sci Comp & Imaging Inst, Salt Lake City, UT 84112 USA.
[Pegoraro, Vincent] Univ Saarland, Fachbereich Informat 6 2, D-66123 Saarbrucken, Germany.
[Shankar, Siddharth] TerraSim Inc, Gateway Ctr 1, Pittsburgh, PA 15222 USA.
[McCormick, Patrick S.] Los Alamos Natl Labs, Los Alamos, NM 87545 USA.
RP Brownlee, C (reprint author), Univ Utah, Sci Comp & Imaging Inst, 72 S Cent Campus Dr,Room 3750, Salt Lake City, UT 84112 USA.
EM brownlee@cs.utah.edu; pegoraro@cs.uni-saarland.de; funkysidd@gmail.com;
pat@lanl.gov; hansen@cs.utah.edu
FU DOE: VACET, C-SAFE Alliance Center; King Abdullah University of Science
and Technology (KAUST) [KUS-C1-016-04]; US National Science Foundation
(NSF) [CNS-0615194, CNS-0551724, CCF-0541113, IIS-0513212]; US
Department of Energy, Office of Science, Office of Advanced Scientific
Computing Research [DE-AC52-06NA25396]
FX The authors would like to thank Kelly Gaither for providing the x38 data
and David Ebert for allowing them to reuse images from [25]. The authors
would like to thank Gary Settles for images of shadowgraph and schlieren
photographs. The authors would also like to thank Jeremy Thornock and
Diem Nguyen from the Center for the Simulation of Accidental Fires and
Explosions (C-SAFE) for providing the helium data. The authors would
also like to thank Jamal Mohd-Yusof for his help and ideas for their
paper. Additional thanks go to Tim McIntyre for the use of his
interferometry example image and Mathias Schott for his assistance
generating a volume rendering of the helium data set. This publication
is based on work supported by: DOE: VACET, C-SAFE Alliance Center;
KUS-C1-016-04 awarded by King Abdullah University of Science and
Technology (KAUST); the US National Science Foundation (NSF):
CNS-0615194, CNS-0551724, CCF-0541113, IIS-0513212; and the US
Department of Energy, Office of Science, Office of Advanced Scientific
Computing Research under contract DE-AC52-06NA25396.
NR 28
TC 4
Z9 5
U1 0
U2 6
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1077-2626
J9 IEEE T VIS COMPUT GR
JI IEEE Trans. Vis. Comput. Graph.
PD NOV
PY 2011
VL 17
IS 11
BP 1574
EP 1586
DI 10.1109/TVCG.2010.255
PG 13
WC Computer Science, Software Engineering
SC Computer Science
GA 815US
UT WOS:000294556000004
PM 21149891
ER
PT J
AU Camp, D
Garth, C
Childs, H
Pugmire, D
Joy, KI
AF Camp, David
Garth, Christoph
Childs, Hank
Pugmire, Dave
Joy, Kenneth I.
TI Streamline Integration Using MPI-Hybrid Parallelism on a Large Multicore
Architecture
SO IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
LA English
DT Article
DE Concurrent programming; parallel programming; modes of computation;
parallelism and concurrency; picture/image generation; display
algorithms
ID FLOW VISUALIZATION
AB Streamline computation in a very large vector field data set represents a significant challenge due to the nonlocal and data-dependent nature of streamline integration. In this paper, we conduct a study of the performance characteristics of hybrid parallel programming and execution as applied to streamline integration on a large, multicore platform. With multicore processors now prevalent in clusters and supercomputers, there is a need to understand the impact of these hybrid systems in order to make the best implementation choice. We use two MPI-based distribution approaches based on established parallelization paradigms, parallelize over seeds and parallelize over blocks, and present a novel MPI-hybrid algorithm for each approach to compute streamlines. Our findings indicate that the work sharing between cores in the proposed MPI-hybrid parallel implementation results in much improved performance and consumes less communication and I/O bandwidth than a traditional, nonhybrid distributed implementation.
C1 [Camp, David; Childs, Hank] Univ Calif Davis, Lawrence Berkeley Natl Lab, Davis, CA 95616 USA.
[Camp, David; Garth, Christoph; Childs, Hank; Joy, Kenneth I.] Univ Calif Davis, Dept Comp Sci, Davis, CA 95616 USA.
[Pugmire, Dave] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Camp, D (reprint author), Univ Calif Davis, Lawrence Berkeley Natl Lab, 1 Shields Ave, Davis, CA 95616 USA.
EM dcamp@lbl.gov; cgarth@ucdavis.edu; hchilds@lbl.gov; pugmire@ornl.gov;
kijoy@ucdavis.edu
OI Garth, Christoph/0000-0003-1669-8549
FU Office of Advanced Scientific Computing Research, Office of Science, of
the US Department of Energy [DE-AC02-05CH11231]; US National Science
Foundation (NSF) [IIS-0916289]; Office of Science of the US Department
of Energy [DE-AC02-05CH11231]
FX This work was supported by the Director, Office of Advanced Scientific
Computing Research, Office of Science, of the US Department of Energy
under Contract No. DE-AC02-05CH11231 through the Scientific Discovery
through Advanced Computing (SciDAC) program's Visualization and
Analytics Center for Enabling Technologies (VACET). This work was
supported in part by the US National Science Foundation (NSF) under
contract IIS-0916289. This research used resources of the National
Energy Research Scientific Computing Center (NERSC), which is supported
by the Office of Science of the US Department of Energy under Contract
No. DE-AC02-05CH11231.
NR 26
TC 18
Z9 20
U1 0
U2 3
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1077-2626
EI 1941-0506
J9 IEEE T VIS COMPUT GR
JI IEEE Trans. Vis. Comput. Graph.
PD NOV
PY 2011
VL 17
IS 11
BP 1702
EP 1713
DI 10.1109/TVCG.2010.259
PG 12
WC Computer Science, Software Engineering
SC Computer Science
GA 815US
UT WOS:000294556000014
PM 21885895
ER
PT J
AU Mays, DC
Cannon, OT
Kanold, AW
Harris, KJ
Lei, TC
Gilbert, B
AF Mays, David C.
Cannon, Orion T.
Kanold, Adam W.
Harris, Kevin J.
Lei, Tim C.
Gilbert, Benjamin
TI Static light scattering resolves colloid structure in index-matched
porous media
SO JOURNAL OF COLLOID AND INTERFACE SCIENCE
LA English
DT Article
DE Aggregate; Deposit; Morphology; Fractal; Nafion; SLS
ID TRANSPORT; PERMEABILITY; MONTMORILLONITE; GROUNDWATER; FILTRATION;
MORPHOLOGY; MODELS; SOILS
AB Colloidal phenomena play an important role in natural porous media, where they influence soil structuring, contaminant migration, filtration, and clogging. Several methods are available to measure pore space geometry within porous media, but these methods have limited applicability when the relevant physical, chemical, or biological processes are dominated by dynamic colloidal phenomena. Here we report a new technique to quantify colloid aggregate structure as a fractal dimension using static light scattering within index-matched porous media (granular Nafion). We validate the method by obtaining consistent results for scattering in suspensions and in porous media, and verify that multiple scattering at environmentally relevant colloid concentrations does not affect the determination of fractal dimension. We also observe restructuring of aggregates during homogenization in the porous media, indicated by an apparent increase in fractal dimension, which can be explained by an analysis of the fluid shear stress caused by repeated inversions of test tubes either containing or not containing granular media. This technique will permit progress in obtaining fundamental descriptions of colloidal phenomena in porous media. (C) 2011 Elsevier Inc. All rights reserved.
C1 [Mays, David C.; Cannon, Orion T.; Kanold, Adam W.] Univ Colorado, Dept Civil Engn, Denver, CO 80217 USA.
[Harris, Kevin J.; Lei, Tim C.] Univ Colorado, Dept Elect Engn, Denver, CO 80217 USA.
[Gilbert, Benjamin] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Mays, DC (reprint author), Univ Colorado, Dept Civil Engn, Campus Box 113,POB 173364, Denver, CO 80217 USA.
EM david.mays@ucdenver.edu
RI Gilbert, Benjamin/E-3182-2010; Mays, David/D-9366-2016
OI Mays, David/0000-0002-5218-1670
FU Earth Sciences Division at Lawrence Berkeley National Laboratory; US
Department of Energy, Office of Basic Energy Sciences, Division of
Chemical Sciences, Geosciences, and Biosciences [DE-AC02-05CH11231]
FX This work was performed in the Colorado Advanced Photonics Technology
laboratory at the University of Colorado Denver. The authors would like
to thank Asnoldo Benitez, Kevin Kennedy, Randy Ray, Larry Scherrer,
Randy Tagg (at the University of Colorado Denver), Theodore Randolph and
Branden Salinas (at the University of Colorado at Boulder), Christopher
Sorensen (at Kansas State University) and Walther Grot (at C.G.
Processing) for their technical and collegial support, and the anonymous
reviewers for their constructive feedback. An internal Program
Development Grant in the Earth Sciences Division at Lawrence Berkeley
National Laboratory provided the seed financial support to initiate this
project, and additional support for BG was provided by the US Department
of Energy, Office of Basic Energy Sciences, Division of Chemical
Sciences, Geosciences, and Biosciences through Contract
DE-AC02-05CH11231.
NR 58
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U1 2
U2 23
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9797
J9 J COLLOID INTERF SCI
JI J. Colloid Interface Sci.
PD NOV 1
PY 2011
VL 363
IS 1
BP 418
EP 424
DI 10.1016/j.jcis.2011.06.046
PG 7
WC Chemistry, Physical
SC Chemistry
GA 818GS
UT WOS:000294740400051
PM 21839461
ER
PT J
AU Gavin, R
Li, Y
Petriello, F
Quackenbush, S
AF Gavin, Ryan
Li, Ye
Petriello, Frank
Quackenbush, Seth
TI FEWZ 2.0: A code for hadronic Z production at next-to-next-to-leading
order
SO COMPUTER PHYSICS COMMUNICATIONS
LA English
DT Article
DE Z; Drell-Yan; NNLO
ID PARTON DISTRIBUTIONS; LHC; COLLISIONS
AB We introduce an improved version of the simulation code FEWZ (Fully Exclusive W and Z Production) for hadron collider production of lepton pairs through the Drell-Yan process at next-to-next-to-leading order (NNLO) in the strong coupling constant. The program is fully differential in the phase space of leptons and additional hadronic radiation. The new version offers users significantly more options for customization. FEWZ now bins multiple, user-selectable histograms during a single run, and produces parton distribution function (PDF) errors automatically. It also features a significantly improved integration routine, and can take advantage of multiple processor cores locally or on the Condor distributed computing system. We illustrate the new features of FEWZ by presenting numerous phenomenological results for LHC physics. We compare NNLO QCD with initial ATLAS and CMS results, and discuss in detail the effects of detector acceptance on the measurement of angular quantities associated with Z-boson production. We address the issue of technical precision in the presence of severe phase-space cuts.
Program summary
Program title: FEWZ
Catalogue identifier: AEJP_v1_0
Program summary URL: http://cpc.cs.qub.ac.uk/summaries/AEJP_v1_0.html
Program obtainable from: CPC Program Library. Queen's University, Belfast, N. Ireland
Licensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.html
No. of lines in distributed program, including test data, etc.: 6 280 771
No. of bytes in distributed program, including test data, etc.: 1 73 027 645
Distribution format: tar.gz
Programming language: Fortran 77, C++, Python
Computer: Mac, PC
Operating system: Mac OSX. Unix/Linux
Has the code been vectorized or parallelized?: Yes. User-selectable. 1 to 219
RAM: 200 Mbytes for common parton distribution functions
Classification: 11.1
External routines: CUBA numerical integration library, numerous parton distribution sets (see text): these are provided with the code.
Nature of problem: Determination of the Drell-Yan Z/photon production cross section and decay into leptons, with kinematic distributions of leptons and jets including full spin correlations, at next-to-next-to-leading order in the strong coupling constant.
Solution method: Virtual loop integrals are decomposed into master integrals using automated techniques. Singularities are extracted from real radiation terms via sector decomposition, which separates singularities and maps onto suitable phase space variables. Result is convoluted with parton distribution functions. Each piece is numerically integrated over phase space, which allows arbitrary cuts on the observed particles. Each sample point may be binned during numerical integration, providing histograms, and reweighted by parton distribution function error eigenvectors, which provides PDF errors.
Restrictions: Output does not correspond to unweighted events, and cannot be interfaced with a shower Monte Carlo.
Additional comments: !!!!! The distribution file for this program is over 170 Mbytes and therefore is not delivered directly when download or E-mail is requested. Instead a html file giving details of how the program can be obtained is sent.
Running time: One day for total cross sections with 0.1% integration errors assuming typical cuts. up to 1 week for smooth kinematic distributions with sub-percent integration errors for each bin. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Petriello, Frank; Quackenbush, Seth] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.
[Gavin, Ryan; Li, Ye] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
[Petriello, Frank] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA.
RP Quackenbush, S (reprint author), Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.
EM squackenbush@hep.anl.gov
FU US Department of Energy, Division of High Energy Physics
[DE-AC02-06CH11357]
FX We are grateful to F. Stoeckli for inspiring and advising us on the
inclusion of the histogramming feature in FEWZ, and on the restructuring
of the numerical integration. We thank S. Yost and J. Qian for valuable
feedback on the original version of FEWZ, and M. Schmitt for useful
discussions on experimental capabilities and desires. We also thank W.
Sakumoto for alerting us to parity-violating moments for inclusion in
our code, T. Hahn for feedback regarding CUBA, K. Melnikov for helpful
comments, and N. Chiapolini for script suggestions. This work was
supported in part by the US Department of Energy, Division of High
Energy Physics, under Contract DE-AC02-06CH11357.
NR 43
TC 219
Z9 219
U1 1
U2 13
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0010-4655
J9 COMPUT PHYS COMMUN
JI Comput. Phys. Commun.
PD NOV
PY 2011
VL 182
IS 11
BP 2388
EP 2403
DI 10.1016/j.cpc.2011.06.008
PG 16
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 815KZ
UT WOS:000294525800008
ER
PT J
AU Rohatgi, A
Stephens, EV
Soulami, A
Davies, RW
Smith, MT
AF Rohatgi, Aashish
Stephens, Elizabeth V.
Soulami, Ayoub
Davies, Richard W.
Smith, Mark T.
TI Experimental characterization of sheet metal deformation during
electro-hydraulic forming
SO JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
LA English
DT Article
DE Electro-hydraulic forming; High strain-rate; Formability; Digital image
correlation; Light-weight; Automotive
ID ALUMINUM-ALLOY SHEET; ENHANCED FORMABILITY; HYPERPLASTICITY; VELOCITY;
RATES
AB A novel experimental technique, that combines high-speed imaging and digital image correlation techniques, has been developed and applied to investigate the high-rate deformation behavior of aluminum sheet during electro-hydraulic forming (EHF). Aluminum alloy AA5182-O sheets (1 mm thick and similar to 152 mm diameter) were EHF deformed by high-energy (up to similar to 21 kJ) pressure-pulse and the time-evolution of sheet-displacement, velocity, strain and strain-rate quantified. The data shows that different locations on the sheet undergo unique deformation history that is not apparent from the conventional post-mortem strain measurement (using etched circle/grid pattern) approach. Under the experimental conditions used in this work, the sheets were formed into domes and the maximum strain-rate observed was similar to 664/s. Further, this maximum strain-rate was observed at an off-apex location and was similar to 2.5 times greater than the maximum strain-rate at the dome apex. The maximum velocity observed was similar to 100 m/s and the velocity-time data showed evidence of pressure-wave reverberations during the forming process. We believe that knowledge of such time-evolution of sheet deformation is necessary for a better understanding and accurate modeling of sheet formability that has often been reported to exceed quasi-static forming limits under high-rate forming conditions. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Rohatgi, Aashish; Stephens, Elizabeth V.; Soulami, Ayoub; Davies, Richard W.; Smith, Mark T.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Rohatgi, A (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd,POB 999, Richland, WA 99352 USA.
EM aashish.rohatgi@pnnl.gov; elizabeth.stephens@pnnl.gov;
ayoub.soulami@pnnl.gov; rich.davies@pnnl.gov; mark.smith@pnnl.gov
FU U.S. Department of Energy [DE-AC05-76RL01830]; U.S. Department of
Energy, Office of Vehicle Technologies
FX The Pacific Northwest National Laboratory is operated by Battelle
Memorial Institute for the U.S. Department of Energy under contract
DE-AC05-76RL01830. This work was sponsored by Drs. Joseph Carpenter and
Carol Schutte in association with the U.S. Department of Energy, Office
of Vehicle Technologies, as part of the Lightweight Materials program.
The authors are thankful to S.F. Golovashchenko (Ford), J.F. Quinn and
J.R. Bradley (General Motors), and A. Desai and D.J. Zhou (Chrysler) for
their suggestions. Capacitor banks' operational guidance provided by J.
Johnson (Bonneville Power Administration), and technical support
provided by G.L. Vanarsdale (Science Applications International
Corporation) and PNNL staff (M.E. Dahl, K.F. Mattlin, P.A. Boyd and C.A.
Bonebrake) is gratefully acknowledged. Technical support, to operate the
cameras and image analysis using DIC software, provided by Alistair
Tofts and Hubert Schreier at Correlated Solutions is also acknowledged.
NR 20
TC 12
Z9 15
U1 0
U2 7
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0924-0136
J9 J MATER PROCESS TECH
JI J. Mater. Process. Technol.
PD NOV
PY 2011
VL 211
IS 11
BP 1824
EP 1833
DI 10.1016/j.jmatprotec.2011.06.005
PG 10
WC Engineering, Industrial; Engineering, Manufacturing; Materials Science,
Multidisciplinary
SC Engineering; Materials Science
GA 815FO
UT WOS:000294511700022
ER
PT J
AU Sutter, EA
Sutter, PW
AF Sutter, Eli A.
Sutter, Peter W.
TI Giant carbon solubility in Au nanoparticles
SO JOURNAL OF MATERIALS SCIENCE
LA English
DT Article
ID LIQUID-SOLID GROWTH; SEMICONDUCTOR NANOCRYSTALS; MAGNETIC NANOPARTICLES;
EPITAXIAL GRAPHENE; METHANOL OXIDATION; PHASE-DIAGRAM; ALLOY DROPS;
SIZE; PARTICLES; GOLD
AB Variable temperature transmission electron microscopy of individual 5 nm Au nanoparticles shows a striking increase in the particle size on raising the temperature from room temperature to 500 A degrees C in the presence of carbon from amorphous carbon support. Using the assembly of ordered graphene shells on the surface of individual nanoparticles at elevated temperatures-and the high pressures induced by such shells-as an experimental tool to study the origins of this swelling, we find that the volume increase is associated with the uptake of carbon to concentrations exceeding the bulk solubility by more than four orders of magnitude. The formation of stable metal-carbon nanostructures that have no bulk equivalent may have important implications on the functional properties of metal nanoparticles.
C1 [Sutter, Eli A.; Sutter, Peter W.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Sutter, EA (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
EM esutter@bnl.gov
FU U.S. Department of Energy, Office of Basic Energy Sciences
[DE-AC02-98CH10886]
FX The authors would like to thank Dr. J. Ciston for help with acquiring
the STEM tilt series. This work was performed at the Center for
Functional Nanomaterials, Brookhaven National Laboratory, which is
supported by the U.S. Department of Energy, Office of Basic Energy
Sciences, under Contract No. DE-AC02-98CH10886.
NR 58
TC 19
Z9 19
U1 1
U2 21
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0022-2461
J9 J MATER SCI
JI J. Mater. Sci.
PD NOV
PY 2011
VL 46
IS 22
SI SI
BP 7090
EP 7097
DI 10.1007/s10853-011-5663-9
PG 8
WC Materials Science, Multidisciplinary
SC Materials Science
GA 809NV
UT WOS:000294064900005
ER
PT J
AU King, V
Phillips, C
Saia, J
Young, M
AF King, Valerie
Phillips, Cynthia
Saia, Jared
Young, Maxwell
TI Sleeping on the Job: Energy-Efficient and Robust Broadcast for Radio
Networks
SO ALGORITHMICA
LA English
DT Article
DE Radio networks; Fault tolerance; Byzantine; Reliable broadcast; Bad
Santa
ID WIRELESS SENSOR NETWORKS
AB We address the problem of minimizing power consumption when broadcasting a message from one node to all the other nodes in a radio network. To enable power savings for such a problem, we introduce a compelling new data streaming problem which we call the Bad Santa problem. Our results on this problem apply for any situation where: (1) a node can listen to a set of n nodes, out of which at least half are non-faulty and know the correct message; and (2) each of these n nodes sends according to some predetermined schedule which assigns each of them its own unique time slot. In this situation, we show that in order to receive the correct message with probability 1, it is necessary and sufficient for the listening node to listen to a Theta (root n) expected number of time slots. Moreover, if we allow for repetitions of transmissions so that each sending node sends the message O(log*n) times (i.e. in O(log*n) rounds each consisting of the n time slots), then listening to O(log*n) expected number of time slots suffices. We show that this is near optimal.
We describe an application of our result to the popular grid model for a radio network. Each node in the network is located on a point in a two dimensional grid, and whenever a node sends a message m, all awake nodes within L-infinity distance r receive m. In this model, up to t < r/2 (2r + 1) nodes within any 2r+1 by 2r+1 square in the grid can suffer Byzantine faults. Moreover, we assume that the nodes that suffer Byzantine faults are chosen and controlled by an adversary that knows everything except for the random bits of each non-faulty node. This type of adversary models worst-case behavior due to malicious attacks on the network; mobile nodes moving around in the network; or static nodes losing power or ceasing to function. Let n=r(2r+1). We show how to solve the broadcast problem in this model with each node sending and receiving an expected O(n log(2) vertical bar m vertical bar + root n vertical bar m vertical bar) bits where vertical bar m vertical bar is the number of bits in m, and, after broadcasting a fingerprint of m, each node is awake only an expected O(root n) time slots. Moreover, for t <= (1-epsilon)(r/2)(2r + 1), for any constant epsilon > 0, we can achieve an even better energy savings. In particular, if we allow each node to send O(log* n) times, we achieve reliable broadcast with each node sending O(n log(2) vertical bar m vertical bar + (log* n)vertical bar m vertical bar) bits and receiving an expected O(n log(2)vertical bar m vertical bar+(log*n)vertical bar m vertical bar) bits and, after broadcasting a fingerprint of m, each node is awake for only an expected O(log*n) time slots. Our results compare favorably with previous protocols that required each node to send Theta (vertical bar m vertical bar) bits, receive Theta (n vertical bar m vertical bar) bits and be awake for Theta (n) time slots.
C1 [Young, Maxwell] Univ Waterloo, David R Cheriton Sch Comp Sci, Waterloo, ON N2L 3G1, Canada.
[King, Valerie] Univ Victoria, Dept Comp Sci, Victoria, BC, Canada.
[Phillips, Cynthia] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Saia, Jared] Univ New Mexico, Dept Comp Sci, Albuquerque, NM 87131 USA.
RP Young, M (reprint author), Univ Waterloo, David R Cheriton Sch Comp Sci, Waterloo, ON N2L 3G1, Canada.
EM val@cs.uvic.ca; caphill@sandia.gov; saia@cs.unm.edu;
m22young@cs.uwaterloo.ca
NR 38
TC 0
Z9 0
U1 1
U2 6
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0178-4617
J9 ALGORITHMICA
JI Algorithmica
PD NOV
PY 2011
VL 61
IS 3
BP 518
EP 554
DI 10.1007/s00453-010-9422-0
PG 37
WC Computer Science, Software Engineering; Mathematics, Applied
SC Computer Science; Mathematics
GA 808FK
UT WOS:000293962400002
ER
PT J
AU Ouellet-Plamondon, C
Marcet, S
Klem, JF
Francoeur, S
AF Ouellet-Plamondon, C.
Marcet, S.
Klem, J. F.
Francoeur, S.
TI Excitonic fine structure of out-of-plane nitrogen dyads in GaAs
SO JOURNAL OF LUMINESCENCE
LA English
DT Article
DE Excitons; Semiconductors; Isoelectronic traps; Exchange and
crystal-field interactions
ID PHOTOLUMINESCENCE; PAIR
AB We report on the excitonic photoluminescence from a nitrogen dyad of C(2v) symmetry located in a plane parallel to the emitted light wavevector (out-of-plane). We determine that the spectral signature of out-of-plane dyads is composed of five transitions linearly polarized along [1 0 0] or [0 1 0]. A sixth transition is in principle allowed but could not be observed due to its relatively low oscillator strength. However, a perturbation in the close vicinity of a dyad can significantly influence the fine structure and the polarization sequence of the emission and can bring out this sixth transition. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Ouellet-Plamondon, C.; Marcet, S.; Francoeur, S.] Ecole Polytech, Dept Genie Phys, Montreal, PQ H3C 3A7, Canada.
[Klem, J. F.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Francoeur, S (reprint author), Ecole Polytech, Dept Genie Phys, Montreal, PQ H3C 3A7, Canada.
EM sebastien.francoeur@polymtl.ca
RI Francoeur, Sebastien/E-6614-2011
OI Francoeur, Sebastien/0000-0002-6129-7026
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX Sandia National Laboratories is a multi-program laboratory managed and
operated by Sandia Corporation, a wholly owned subsidiary of Lockheed
Martin Corporation, for the U.S. Department of Energy's National Nuclear
Security Administration under Contract DE-AC04-94AL85000.
NR 13
TC 1
Z9 1
U1 1
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-2313
J9 J LUMIN
JI J. Lumines.
PD NOV
PY 2011
VL 131
IS 11
BP 2339
EP 2341
DI 10.1016/j.jlumin.2011.05.045
PG 3
WC Optics
SC Optics
GA 806IY
UT WOS:000293802300019
ER
PT J
AU Wang, J
Botterud, A
Bessa, R
Keko, H
Carvalho, L
Issicaba, D
Sumaili, J
Miranda, V
AF Wang, J.
Botterud, A.
Bessa, R.
Keko, H.
Carvalho, L.
Issicaba, D.
Sumaili, J.
Miranda, V.
TI Wind power forecasting uncertainty and unit commitment
SO APPLIED ENERGY
LA English
DT Article
DE Electricity markets; Forecasting; Dispatch; Stochastic optimization;
Unit commitment; Wind power
ID PROBABILISTIC FORECASTS; GENERATION; SECURITY
AB In this paper, we investigate the representation of wind power forecasting (WPF) uncertainty in the unit commitment (UC) problem. While deterministic approaches use a point forecast of wind power output, WPF uncertainty in the stochastic UC alternative is captured by a number of scenarios that include cross-temporal dependency. A comparison among a diversity of UC strategies (based on a set of realistic experiments) is presented. The results indicate that representing WPF uncertainty with wind power scenarios that rely on stochastic UC has advantages over deterministic approaches that mimic the classical models. Moreover, the stochastic model provides a rational and adaptive way to provide adequate spinning reserves at every hour, as opposed to increasing reserves to predefined, fixed margins that cannot account either for the system's costs or its assumed risks. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Wang, J.; Botterud, A.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Bessa, R.; Keko, H.; Carvalho, L.; Issicaba, D.; Sumaili, J.; Miranda, V.] Univ Porto, Fac Engn, INESC Porto, P-4200465 Oporto, Portugal.
[Bessa, R.; Keko, H.; Carvalho, L.; Issicaba, D.; Sumaili, J.; Miranda, V.] Univ Porto, Fac Engn, FEUP, P-4200465 Oporto, Portugal.
RP Wang, J (reprint author), Argonne Natl Lab, 9700 S Cass Ave,Bldg 221, Argonne, IL 60439 USA.
EM jianhui.wang@anl.gov; abotterud@anl.gov; rbessa@inescporto.pt;
hkeko@inescporto.pt; lcarvalho@inescporto.pt;
diego.issicaba@inescporto.pt; jean.sumaili@inesporto.pt;
vmiranda@inescporto.pt
RI Miranda, Vladimiro/H-6245-2012; Issicaba, Diego/E-5509-2013;
OI Issicaba, Diego/0000-0002-7937-8115; Carvalho,
Leonel/0000-0002-9097-3679; Bessa, Ricardo/0000-0002-3808-0427; Sumaili,
Jean/0000-0002-0231-1043; Miranda, Vladimiro/0000-0002-5772-8452
FU US Department of Energy, Office of Energy Efficiency and Renewable
Energy; US Department of Energy Office of Science laboratory
[DE-AC02-06CH11357]; Fundacao para a Ciencia e a Tecnologia (FCT)
[SFRH/BD/33738/2009]
FX The authors acknowledge the US Department of Energy, Office of Energy
Efficiency and Renewable Energy through its Wind and Hydropower
Technologies Program for funding the research presented in this paper.
The submitted manuscript has been created by UChicago Argonne, LLC,
Operator of Argonne National Laboratory ("Argonne"). Argonne, a US
Department of Energy Office of Science laboratory, is operated under
Contract No. DE-AC02-06CH11357.; The author Ricardo J. Bessa
acknowledges Fundacao para a Ciencia e a Tecnologia (FCT) for PhD
Scholarship SFRH/BD/33738/2009
NR 27
TC 111
Z9 113
U1 7
U2 41
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0306-2619
J9 APPL ENERG
JI Appl. Energy
PD NOV
PY 2011
VL 88
IS 11
BP 4014
EP 4023
DI 10.1016/j.apenergy.2011.04.011
PG 10
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 798ID
UT WOS:000293195500048
ER
PT J
AU Xiong, XY
Rong, CB
Rubanov, S
Zhang, Y
Liu, JP
AF Xiong, X. Y.
Rong, C. B.
Rubanov, S.
Zhang, Y.
Liu, J. P.
TI Atom probe study on the bulk nanocomposite SmCo/Fe permanent magnet
produced by ball-milling and warm compaction
SO JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
LA English
DT Article
DE SmCo permanent magnet; Nanocomposite; Microstructure; Atom probe
tomography; TEM; Ball-mill
AB The microstructure and compositions of the bulk nanocomposite SmCo/Fe permanent magnet were studied using transmission electron microscopy and 3-dimensional atom probe techniques. The excellent magnetic properties were related to the uniform nanocomposite structure with nanometer alpha-Fe particles uniformly distributed in the SmCo phase matrix. The alpha-Fe phase contained similar to 26 at% Co, and the SmCo phase contained similar to 19 at% Fe, confirming that the interdiffusion of Fe and Co atoms between the two phases occurred. The formation of the alpha-Fe(Co) phase explained why the saturation magnetization of the nanocomposite permanent magnet was higher than that expected from the original pure alpha-Fe and SmCo(5) powders, which enhanced further the maximum energy product of the nanocomposite permanent magnet. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Xiong, X. Y.] Monash Univ, Monash Ctr Electron Microscopy, Clayton, Vic 3800, Australia.
[Xiong, X. Y.] Monash Univ, Dept Mat Engn, Clayton, Vic 3800, Australia.
[Rong, C. B.; Liu, J. P.] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA.
[Rubanov, S.] Univ Melbourne, Inst Bio21, Electron Microscopy Unit, Parkville, Vic 3052, Australia.
[Zhang, Y.] Iowa State Univ, Div Mat Sci & Engn, Ames Lab, Ames, IA 50011 USA.
RP Xiong, XY (reprint author), Monash Univ, Monash Ctr Electron Microscopy, Clayton, Vic 3800, Australia.
EM xiangyuan.xiong@mcem.monash.edu.au
RI Rubanov, Sergey/O-9798-2016
FU US Office of Naval Research/MURI [N00014-05-1-0497]; University of
Texas-Arlington
FX This work has been supported in part by the US Office of Naval
Research/MURI project under Grant N00014-05-1-0497 and by the University
of Texas-Arlington.
NR 19
TC 8
Z9 9
U1 3
U2 31
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0304-8853
J9 J MAGN MAGN MATER
JI J. Magn. Magn. Mater.
PD NOV
PY 2011
VL 323
IS 22
BP 2855
EP 2858
DI 10.1016/j.jmmm.2011.06.035
PG 4
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA 794PM
UT WOS:000292912900026
ER
PT J
AU Zandalazini, C
Esquinazi, P
Bridoux, G
Barzola-Quiquia, J
Ohldag, H
Arenholz, E
AF Zandalazini, C.
Esquinazi, P.
Bridoux, G.
Barzola-Quiquia, J.
Ohldag, H.
Arenholz, E.
TI Uncompensated magnetization and exchange-bias field in
La0.7Sr0.3MnO3/YMnO3 bilayers: The influence of the ferromagnetic layer
SO JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
LA English
DT Article
DE Exchange-bias effect; Magnetic bilayer; Magnetic oxide
ID YMNO3 THIN-FILMS
AB We studied the magnetic behavior of bilayers of multiferroic and nominally antiferromagnetic o-YMnO3 (375 nm thick) and ferromagnetic La0.7Sr0.3MnO3 and La0.67Ca0.33MnO3 (8 ... 225 nm), in particular the vertical magnetization shift M-E and exchange-bias field H-E for different thickness and magnetic dilutions of the ferromagnetic layer at different temperatures and cooling fields. We have found very large M-E shifts equivalent to up to 100% of the saturation value of the o-YMO layer alone. The overall behavior, including XMCD magnetization shift measured at the Mn-L edge of the LSMO layer only, indicates that the properties of the ferromagnetic layer contribute substantially to the M-E shift and that this does not correlate straightforwardly with the measured exchange-bias field H-E. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Zandalazini, C.; Esquinazi, P.; Bridoux, G.; Barzola-Quiquia, J.] Univ Leipzig, Div Superconductiv & Magnetism, D-04103 Leipzig, Germany.
[Ohldag, H.] Stanford Univ, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA.
[Arenholz, E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Esquinazi, P (reprint author), Univ Leipzig, Div Superconductiv & Magnetism, Linnestr 5, D-04103 Leipzig, Germany.
EM esquin@physik.uni-leipzig.de
RI Ohldag, Hendrik/F-1009-2014;
OI Esquinazi, Pablo/0000-0003-0649-1472
FU Sachsisches Staatsministerium fur Wissenschaft und Kunst
[4-7531.50-04-0361-09/1]; DFG within the Collaborative Research Center
[SFB 762]; Department of Energy, Office of Basic Energy Sciences
FX Supported by the Sachsisches Staatsministerium fur Wissenschaft und
Kunst under 4-7531.50-04-0361-09/1.; Supported by the DFG within the
Collaborative Research Center (SFB 762) "Functionality of Oxide
Interfaces".; SSRL and ALS are national user facilities supported by the
Department of Energy, Office of Basic Energy Sciences. SSRL is operated
by Stanford University and ALS is operated by the University of
California.
NR 32
TC 14
Z9 14
U1 4
U2 31
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0304-8853
J9 J MAGN MAGN MATER
JI J. Magn. Magn. Mater.
PD NOV
PY 2011
VL 323
IS 22
BP 2892
EP 2898
DI 10.1016/j.jmmm.2011.06.053
PG 7
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA 794PM
UT WOS:000292912900033
ER
PT J
AU Phatak, C
Pokharel, R
Beleggia, M
De Graef, M
AF Phatak, C.
Pokharel, R.
Beleggia, M.
De Graef, M.
TI On the magnetostatics of chains of magnetic nanoparticles
SO JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
LA English
DT Article
DE Magnetostatic interaction; Shape amplitude; Magnetic chain
ID MAGNETOTACTIC BACTERIA; DEMAGNETIZATION TENSOR; ARBITRARY SHAPE;
COMPUTATION; HOLOGRAPHY
AB A novel approach is presented for the computation of the magnetostatic energy of straight and bent chains of identical, uniformly magnetized particles of arbitrary shape. The formalism relies on the concept of the magnetometric tensor field, and allows for closed form expressions for the magnetostatic energy, demagnetization factor, Young's modulus, and bending modulus of chains in terms of the shape amplitude of the particles. Analytical solutions are presented for straight chains of spheres, cubes, and cylinders, and for bent chains of spheres. Numerical results include chains of octahedra, tetrahedra, cuboctahedra, and bi-cones. The axial demagnetization factor for the bi-cone shape is derived in analytical form. An approximate energy expression, using the full shape-dependent interaction formalism for short separation distances, and the standard dipolar interaction expression for larger distances, is introduced. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Phatak, C.; Pokharel, R.; De Graef, M.] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA.
[Phatak, C.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Beleggia, M.] Tech Univ Denmark, Ctr Electron Nanoscopy, DK-2800 Lyngby, Denmark.
RP De Graef, M (reprint author), Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA.
EM degraef@cmu.edu
RI Phatak, Charudatta/A-1874-2010; DeGraef, Marc/G-5827-2010;
OI DeGraef, Marc/0000-0002-4721-6226; Beleggia, Marco/0000-0002-2888-1888
FU US Department of Energy, Basic Energy Sciences [DE-FG02-01ER45893];
Argonne National Laboratory, a US DOE Science Laboratory
[DE-AC02-06CH11357]
FX Stimulating discussions with M. McHenry and D. Laughlin are gratefully
acknowledged. M.D.G., C.P., and R.P. acknowledge support from the US
Department of Energy, Basic Energy Sciences, on contract no.
DE-FG02-01ER45893. C.P. would also like to acknowledge funding provided
by Argonne National Laboratory, a US DOE Science Laboratory operated
under contract no. DE-AC02-06CH11357 by UChicago Argonne, LLC.
NR 20
TC 8
Z9 8
U1 0
U2 18
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0304-8853
J9 J MAGN MAGN MATER
JI J. Magn. Magn. Mater.
PD NOV
PY 2011
VL 323
IS 22
BP 2912
EP 2922
DI 10.1016/j.jmmm.2011.06.058
PG 11
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA 794PM
UT WOS:000292912900036
ER
PT J
AU Gupta, SB
Bihari, B
Biruduganti, M
Sekar, R
AF Gupta, Sreenath B.
Bihari, Bipin
Biruduganti, Munidhar
Sekar, Raj
TI In-Cylinder Equivalence Ratio Measurements in an EGR Equipped Engine
SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE
ASME
LA English
DT Article
ID INDUCED BREAKDOWN SPECTROSCOPY; LASER-INDUCED SPARK; TO-AIR RATIO;
SPECTROMETRY
AB A single-cylinder natural gas fueled engine equipped with an exhaust gas recirculation (EGR) system was ignited using a laser. The broadband emission from the spark kernel was spectrally resolved, and the peaks corresponding to H(alpha), N, and O atoms were measured for a range of conditions with global equivalence ratios ranging between 0.6 and 1.0 and for exhaust gas recirculation fractions up to 29%. The (H(alpha)/O) and (H(alpha)/N) peak intensity ratios from the spectral scans correlated extremely well (R(2) >0.97) with local oxygen based equivalence ratios. Appropriate relations were developed to relate such values to global equivalence ratios and the EGR rate. For a homogeneous intake charge, the present laser induced breakdown spectroscopy diagnostic enables an estimation of one of the two values, global equivalence ratio or EGR rate, with the knowledge of the other. [DOI: 10.1115/1.4003789]
C1 [Gupta, Sreenath B.; Bihari, Bipin; Biruduganti, Munidhar; Sekar, Raj] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Gupta, SB (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM sgupta@anl.gov
FU U.S. Department of Energy [DE-AC02-06CH11357]
FX The authors wish to acknowledge financial support from the U.S.
Department of Energy under Contract No. DE-AC02-06CH11357 with Dr.
Robert Gemmer as contract monitor.
NR 10
TC 0
Z9 0
U1 1
U2 5
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0742-4795
J9 J ENG GAS TURB POWER
JI J. Eng. Gas. Turbines Power-Trans. ASME
PD NOV
PY 2011
VL 133
IS 11
AR 114504
DI 10.1115/1.4003789
PG 5
WC Engineering, Mechanical
SC Engineering
GA 766ET
UT WOS:000290764500018
ER
PT J
AU Liu, YH
Wang, KK
Lin, WZ
Chinchore, A
Shi, M
Pak, J
Smith, AR
Constantin, C
AF Liu, Y. H.
Wang, Kangkang
Lin, Wenzhi
Chinchore, Abhijit
Shi, Meng
Pak, Jeongihm
Smith, A. R.
Constantin, Costel
TI The effect of growth parameters on CrN thin films grown by molecular
beam epitaxy
SO THIN SOLID FILMS
LA English
DT Article
DE Chromium nitride; Crystalline orientation; Thin films; Molecular beam
epitaxy; Scanning tunneling microscopy; Reflection high energy electron
diffraction; X-ray diffraction
ID SURFACE MORPHOLOGICAL EVOLUTION; PHASE-TRANSITION; CRN(001) LAYERS
AB In this paper, we report on the controlling of the effect of growth parameters such as substrate temperature and the ratio of Cr and N atoms on phase formation, surface morphology and crystallization of CrN(001) thin films grown by plasma-assisted molecular beam epitaxy on the MgO(001) substrate. The reflection high energy electron diffraction, atomic force microscopy. X-ray diffraction and scanning tunneling microscopy are used to characterize the thin films grown under various conditions. High-quality CrN(001) thin films are achieved at a substrate temperature 430 degrees C with a low Cr deposition rate. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Liu, Y. H.; Wang, Kangkang; Lin, Wenzhi; Chinchore, Abhijit; Shi, Meng; Pak, Jeongihm; Smith, A. R.] Ohio Univ, Dept Phys & Astron, Nanoscale & Quantum Phenomena Inst, Athens, OH 45701 USA.
[Constantin, Costel] James Madison Univ, Dept Phys & Astron, Harrisonburg, VA 22807 USA.
RP Liu, YH (reprint author), Los Alamos Natl Lab, MPA CINT, MS K771, Los Alamos, NM 87545 USA.
EM yhaoliu76@gmail.com; smitha2@ohio.edu
RI Liu, Yinghao/A-9427-2012; Lin, Wenzhi/G-4484-2013
FU (U.S.) Department of Energy (DOE), Office of Basic Energy Sciences
[DE-FG02-06ER46317]; National Science Foundation (NSF) [0730257]
FX This work is supported by the (U.S.) Department of Energy (DOE), Office
of Basic Energy Sciences (Grant No. DE-FG02-06ER46317) and the National
Science Foundation (NSF) (Grant No. 0730257).
NR 12
TC 3
Z9 3
U1 3
U2 13
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0040-6090
J9 THIN SOLID FILMS
JI Thin Solid Films
PD OCT 31
PY 2011
VL 520
IS 1
BP 90
EP 94
DI 10.1016/j.tsf.2011.06.052
PG 5
WC Materials Science, Multidisciplinary; Materials Science, Coatings &
Films; Physics, Applied; Physics, Condensed Matter
SC Materials Science; Physics
GA 853QQ
UT WOS:000297441200014
ER
PT J
AU Herbert, EG
Tenhaeff, WE
Dudney, NJ
Pharr, GM
AF Herbert, E. G.
Tenhaeff, W. E.
Dudney, N. J.
Pharr, G. M.
TI Mechanical characterization of LiPON films using nanoindentation
SO THIN SOLID FILMS
LA English
DT Article
DE LiPON; Solid electrolytes; Dendrite suppression; Nanoindentation
ID ELASTIC-MODULUS; LITHIUM; ELECTROLYTE; INDENTATION; INTERFACES;
MORPHOLOGY; BATTERIES; HARDNESS; STRESS; LOAD
AB Nanoindentation has been used to characterize the elastic modulus and hardness of LiPON films ranging in thickness from 1 to 10 mu m. Four fully dense, amorphous films were deposited on glass and sapphire substrates with one film annealed at 200 degrees C for 20 min. The modulus of LiPON is found to be approximately 77 GPa, and argued to be independent of the substrate type, film thickness, and annealing. Based on the numerical analysis of Monroe and Newman, this value may be sufficiently high to mechanically suppress dendrite formation at the lithium/LiPON interface in thin film batteries [1]. Using Sneddon's stiffness equation and assuming the modulus is 77 GPa, the hardness is found to be approximately 3.9 GPa for all but the annealed film. The hardness of the annealed film is approximately 5% higher, at 4.1 GPa. Atomic force microscopy images of the residual hardness impressions confirm the unexpected increase in hardness of the annealed film. Surprisingly, the indentation data also reveal time-dependent behavior in all four films. This indicates that creep may also play a significant role in determining how LiPON responds to complex loading conditions and could be important in relieving stresses as they develop during service. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Herbert, E. G.; Pharr, G. M.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Tenhaeff, W. E.; Dudney, N. J.; Pharr, G. M.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RP Herbert, EG (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
EM eherbert@utk.edu; tenhaeffwe@ornl.gov; dudneynj@ornl.gov; pharr@utk.edu
RI Dudney, Nancy/I-6361-2016
OI Dudney, Nancy/0000-0001-7729-6178
FU Oak Ridge National Laboratory
FX Research is sponsored by the Laboratory Directed Research and
Development Program of Oak Ridge National Laboratory, managed by
UT-Battelle, LLC, for the U. S. Department of Energy.
NR 14
TC 27
Z9 27
U1 7
U2 69
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0040-6090
J9 THIN SOLID FILMS
JI Thin Solid Films
PD OCT 31
PY 2011
VL 520
IS 1
BP 413
EP 418
DI 10.1016/j.tsf.2011.07.068
PG 6
WC Materials Science, Multidisciplinary; Materials Science, Coatings &
Films; Physics, Applied; Physics, Condensed Matter
SC Materials Science; Physics
GA 853QQ
UT WOS:000297441200066
ER
PT J
AU Dunlop, JC
Lisa, MA
Sorensen, P
AF Dunlop, J. C.
Lisa, M. A.
Sorensen, P.
TI Constituent quark scaling violation due to baryon number transport
SO PHYSICAL REVIEW C
LA English
DT Article
ID COALESCENCE; COLLISIONS; RECOMBINATION
AB In ultrarelativistic heavy-ion collisions at root s(NN) approximate to 200 GeV, the azimuthal emission anisotropy of hadrons with low and intermediate transverse momentum (p(T) less than or similar to 4 GeV/c) displays an intriguing scaling. In particular, the baryon (meson) emission patterns are consistent with a scenario in which a bulk medium of flowing quarks coalesces into three-quark (two-quark) "bags." While a full understanding of this number-of-constituent-quark (NCQ) scaling remains elusive, it is suggestive of a thermalized bulk system characterized by colored dynamical degrees of freedom-a quark-gluon plasma (QGP). In this scenario, one expects the scaling to break down as the central energy density is reduced below the QGP formation threshold; for this reason, NCQ-scaling violation searches are of interest in the energy scan program at the Relativistic Heavy Ion Collider. However, as root s(NN) is reduced, it is not only the initial energy density that changes; there is also an increase in the net baryon number at midrapidity, as stopping transports entrance-channel partons to midrapidity. This phenomenon can result in violations of simple NCQ scaling. Still in the context of the quark coalescence model, we describe a specific pattern for the breakdown of the scaling that includes different flow strengths for particles and their antipartners. Related complications in the search for recently suggested exotic phenomena are also discussed.
C1 [Dunlop, J. C.; Sorensen, P.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Lisa, M. A.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
RP Dunlop, JC (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
OI Sorensen, Paul/0000-0001-5056-9391
FU US National Science Foundation [PHY-0970048]; Offices of NP within the
US Department of Energy Office of Science [DE-FG02-88ER40412,
DE-AC02-98CH10886]; Offices of HEP within the US Department of Energy
Office of Science [DE-FG02-88ER40412, DE-AC02-98CH10886]
FX We would like to thank Dr. Michael Mitrovski and Dr. Rosi Reed for
helpful discussions. This work was supported by the US National Science
Foundation under Grant No. PHY-0970048 and by the Offices of NP and HEP
within the US Department of Energy Office of Science under Contracts No.
DE-FG02-88ER40412 and No. DE-AC02-98CH10886.
NR 35
TC 34
Z9 36
U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD OCT 31
PY 2011
VL 84
IS 4
AR 044914
DI 10.1103/PhysRevC.84.044914
PG 6
WC Physics, Nuclear
SC Physics
GA 841OF
UT WOS:000296521000011
ER
PT J
AU Marley, P
Jenkins, DG
Davies, PJ
Robinson, AP
Wadsworth, R
Lister, CJ
Carpenter, MP
Janssens, RVF
Jiang, CL
Khoo, TL
Lauritsen, T
Seweryniak, D
Zhu, S
Courtin, S
Haas, F
Lebhertz, D
Bouhelal, M
Lighthall, JC
Wuosmaa, AH
O'Donnell, D
AF Marley, P.
Jenkins, D. G.
Davies, P. J.
Robinson, A. P.
Wadsworth, R.
Lister, C. J.
Carpenter, M. P.
Janssens, R. V. F.
Jiang, C. L.
Khoo, T. L.
Lauritsen, T.
Seweryniak, D.
Zhu, S.
Courtin, S.
Haas, F.
Lebhertz, D.
Bouhelal, M.
Lighthall, J. C.
Wuosmaa, A. H.
O'Donnell, D.
TI High-resolution spectroscopy of decay pathways in the C-12(C-12,gamma)
reaction
SO PHYSICAL REVIEW C
LA English
DT Article
ID CLUSTER MODEL; CROSS-SECTION; ENERGY-LEVELS; MG-24; NUCLEI; RESONANCES;
STATES
AB The decay branchings of a resonance in the C-12(C-12,gamma)Mg-24 reaction at E-c.m. = 8.0 MeV have been studied with high resolution using the Gammasphere array. Radiative capture residues were discriminated from scattered beam and the dominant evaporation channels using the fragment mass analyzer coupled to a multistage Parallel Grid Avalanche Counter (PGAC)/ion chamber system. The clean selection of residues has allowed the population of excited states up to 10 MeV in Mg-24 to be examined in detail. Strong feeding of an excited K-pi = 0(-) band is observed. A J(pi) = 4(+) assignment to the resonance is strongly favored.
C1 [Marley, P.; Jenkins, D. G.; Davies, P. J.; Robinson, A. P.; Wadsworth, R.] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England.
[Lister, C. J.; Carpenter, M. P.; Janssens, R. V. F.; Jiang, C. L.; Khoo, T. L.; Lauritsen, T.; Seweryniak, D.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Courtin, S.; Haas, F.; Lebhertz, D.; Bouhelal, M.] Univ Strasbourg, IPHC, CNRS, IN2P3, F-67037 Strasbourg 2, France.
[Lighthall, J. C.; Wuosmaa, A. H.] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
[O'Donnell, D.] Univ W Scotland, Nucl Phys Grp, Sch Sci & Engn, Paisley PA1 2BE, Renfrew, Scotland.
RP Marley, P (reprint author), Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England.
EM david.jenkins@york.ac.uk
RI O'Donnell, David/J-7786-2013; Carpenter, Michael/E-4287-2015
OI O'Donnell, David/0000-0002-4710-3803; Carpenter,
Michael/0000-0002-3237-5734
FU US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]
FX Discussions with Y. Taniguchi, Y. Kanada-En'yo, and J. Cseh are
gratefully acknowledged. This work was supported in part by the US
Department of Energy, Office of Nuclear Physics, under Contract No.
DE-AC02-06CH11357.
NR 31
TC 1
Z9 1
U1 0
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD OCT 31
PY 2011
VL 84
IS 4
AR 044332
DI 10.1103/PhysRevC.84.044332
PG 8
WC Physics, Nuclear
SC Physics
GA 841OF
UT WOS:000296521000004
ER
PT J
AU Sarmento, R
Calviani, M
Praena, J
Colonna, N
Belloni, F
Goncalves, IF
Vaz, P
Aerts, G
Alvarez, H
Alvarez-Velarde, F
Andriamonje, S
Andrzejewski, J
Assimakopoulos, P
Audouin, L
Barbagallo, M
Badurek, G
Baumann, P
Becvar, F
Berthoumieux, E
Calvino, F
Cano-Ott, D
Capote, R
Carrapico, C
de Albornoz, AC
Cennini, P
Chepel, V
Chiaveri, E
Cortes, G
Couture, A
Cox, J
Dahlfors, M
David, S
Diakaki, M
Dillmann, I
Dolfini, R
Domingo-Pardo, C
Dridi, W
Duran, I
Eleftheriadis, C
Ferrant, L
Ferrari, A
Ferreira-Marques, R
Frais-Koelbl, H
Fuji, K
Furman, W
Gonzalez-Romero, E
Goverdovski, A
Gramegna, F
Griesmayer, E
Guerrero, C
Gunsing, F
Haas, B
Haight, R
Heil, M
Herrera-Martinez, A
Igashira, M
Isaev, S
Jericha, E
Kappeler, F
Kadi, Y
Karadimos, D
Karamanis, D
Kerveno, M
Ketlerov, V
Koehler, P
Konovalov, V
Kossionides, E
Krticka, M
Lampoudis, C
Lederer, C
Leeb, H
Lindote, A
Lopes, I
Lozano, M
Lukic, S
Marganiec, J
Marques, L
Marrone, S
Martinez, T
Massimi, C
Mastinu, P
Mendoza, E
Mengoni, A
Milazzo, PM
Moreau, C
Mosconi, M
Neves, F
Oberhummer, H
O'Brien, S
Oshima, M
Pancin, J
Papachristodoulou, C
Papadopoulos, C
Paradela, C
Patronis, N
Pavlik, A
Pavlopoulos, P
Perrot, L
Pigni, MT
Plag, R
Plompen, A
Plukis, A
Poch, A
Pretel, C
Quesada, J
Rauscher, T
Reifarth, R
Rosetti, M
Rubbia, C
Rudolf, G
Rullhusen, P
Salgado, J
Sarchiapone, L
Savvidis, I
Stephan, C
Tagliente, G
Tain, JL
Tarrio, D
Tassan-Got, L
Tavora, L
Terlizzi, R
Vannini, G
Ventura, A
Villamarin, D
Vicente, MC
Vlachoudis, V
Vlastou, R
Voss, F
Walter, S
Wendler, H
Wiescher, M
Wisshak, K
AF Sarmento, R.
Calviani, M.
Praena, J.
Colonna, N.
Belloni, F.
Goncalves, I. F.
Vaz, P.
Aerts, G.
Alvarez, H.
Alvarez-Velarde, F.
Andriamonje, S.
Andrzejewski, J.
Assimakopoulos, P.
Audouin, L.
Barbagallo, M.
Badurek, G.
Baumann, P.
Becvar, F.
Berthoumieux, E.
Calvino, F.
Cano-Ott, D.
Capote, R.
Carrapico, C.
Carrillo de Albornoz, A.
Cennini, P.
Chepel, V.
Chiaveri, E.
Cortes, G.
Couture, A.
Cox, J.
Dahlfors, M.
David, S.
Diakaki, M.
Dillmann, I.
Dolfini, R.
Domingo-Pardo, C.
Dridi, W.
Duran, I.
Eleftheriadis, C.
Ferrant, L.
Ferrari, A.
Ferreira-Marques, R.
Frais-Koelbl, H.
Fuji, K.
Furman, W.
Gonzalez-Romero, E.
Goverdovski, A.
Gramegna, F.
Griesmayer, E.
Guerrero, C.
Gunsing, F.
Haas, B.
Haight, R.
Heil, M.
Herrera-Martinez, A.
Igashira, M.
Isaev, S.
Jericha, E.
Kaeppeler, F.
Kadi, Y.
Karadimos, D.
Karamanis, D.
Kerveno, M.
Ketlerov, V.
Koehler, P.
Konovalov, V.
Kossionides, E.
Krticka, M.
Lampoudis, C.
Lederer, C.
Leeb, H.
Lindote, A.
Lopes, I.
Lozano, M.
Lukic, S.
Marganiec, J.
Marques, L.
Marrone, S.
Martinez, T.
Massimi, C.
Mastinu, P.
Mendoza, E.
Mengoni, A.
Milazzo, P. M.
Moreau, C.
Mosconi, M.
Neves, F.
Oberhummer, H.
O'Brien, S.
Oshima, M.
Pancin, J.
Papachristodoulou, C.
Papadopoulos, C.
Paradela, C.
Patronis, N.
Pavlik, A.
Pavlopoulos, P.
Perrot, L.
Pigni, M. T.
Plag, R.
Plompen, A.
Plukis, A.
Poch, A.
Pretel, C.
Quesada, J.
Rauscher, T.
Reifarth, R.
Rosetti, M.
Rubbia, C.
Rudolf, G.
Rullhusen, P.
Salgado, J.
Sarchiapone, L.
Savvidis, I.
Stephan, C.
Tagliente, G.
Tain, J. L.
Tarrio, D.
Tassan-Got, L.
Tavora, L.
Terlizzi, R.
Vannini, G.
Ventura, A.
Villamarin, D.
Vicente, M. C.
Vlachoudis, V.
Vlastou, R.
Voss, F.
Walter, S.
Wendler, H.
Wiescher, M.
Wisshak, K.
CA N TOF Collaboration
TI Measurement of the U-236(n, f) cross section from 170 meV to 2 MeV at
the CERN n_TOF facility
SO PHYSICAL REVIEW C
LA English
DT Article
ID NUCLEAR-DATA LIBRARY; FISSION; RANGE
AB The neutron-induced fission cross section of U-236 was measured at the neutron Time-of-Flight (n_TOF) facility at CERN relative to the standard U-235(n, f) cross section for neutron energies ranging from above thermal to several MeV. The measurement, covering the full range simultaneously, was performed with a fast ionization chamber, taking advantage of the high resolution of the n_TOF spectrometer. The n_TOF results confirm that the first resonance at 5.45 eV is largely overestimated in some nuclear data libraries. The resonance triplet around 1.2 keV was measured with high resolution and resonance parameters were determined with good accuracy. Resonances at high energy have also been observed and characterized and different values for the cross section are provided for the region between 10 keV and the fission threshold. The present work indicates various shortcomings of the current nuclear data libraries in the subthreshold region and provides the basis for an accurate re-evaluation of the U-236(n, f) cross section, which is of great relevance for the development of emerging or innovative nuclear reactor technologies.
C1 [Sarmento, R.; Goncalves, I. F.; Vaz, P.; Carrapico, C.; Carrillo de Albornoz, A.; Marques, L.; Salgado, J.; Tavora, L.] ITN, Sacavem, Portugal.
[Calviani, M.; Andriamonje, S.; Chiaveri, E.; Guerrero, C.; Vlachoudis, V.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
[Colonna, N.; Barbagallo, M.; Marrone, S.; Tagliente, G.; Terlizzi, R.] Ist Nazl Fis Nucl, I-70126 Bari, Italy.
[Belloni, F.; Fuji, K.; Milazzo, P. M.; Moreau, C.] Ist Nazl Fis Nucl, Trieste, Italy.
[Alvarez-Velarde, F.; Cano-Ott, D.; Gonzalez-Romero, E.; Guerrero, C.; Martinez, T.; Mendoza, E.; Villamarin, D.; Vicente, M. C.] Ctr Invest Energet Medioambientales & Technol CIE, Madrid, Spain.
[Andrzejewski, J.; Karamanis, D.; Marganiec, J.] Univ Lodz, PL-90131 Lodz, Poland.
[Assimakopoulos, P.; Karadimos, D.; Papachristodoulou, C.; Patronis, N.] Univ Ioannina, GR-45110 Ioannina, Greece.
[Audouin, L.; David, S.; Ferrant, L.; Isaev, S.; Stephan, C.; Tassan-Got, L.] Ctr Natl Rech Sci IN2P3 IPN, Orsay, France.
[Badurek, G.; Jericha, E.; Leeb, H.; Oberhummer, H.; Pigni, M. T.] Techn Univ Wien, Atominst Osterreich Univ, Vienna, Austria.
[Baumann, P.; Kerveno, M.; Lukic, S.; Rudolf, G.] Ctr Natl Rech Sci IN2P3 IReS, Strasbourg, France.
[Becvar, F.; Krticka, M.] Charles Univ Prague, Prague, Czech Republic.
[Calvino, F.] Univ Politecn Madrid, E-28040 Madrid, Spain.
[Capote, R.; Frais-Koelbl, H.; Griesmayer, E.; Mengoni, A.] IAEA, Nucl Data Sect, A-1400 Vienna, Austria.
[Praena, J.; Capote, R.; Lozano, M.; Quesada, J.] Univ Seville, Seville, Spain.
[Cennini, P.; Dahlfors, M.; Ferrari, A.; Gramegna, F.; Herrera-Martinez, A.; Kadi, Y.; Mastinu, P.; Sarchiapone, L.; Wendler, H.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Legnaro, Italy.
[Chepel, V.; Ferreira-Marques, R.; Lindote, A.; Lopes, I.; Neves, F.] Univ Coimbra, LIP Coimbra, P-3000 Coimbra, Portugal.
[Chepel, V.; Ferreira-Marques, R.; Lindote, A.; Lopes, I.; Neves, F.] Univ Coimbra, Dept Fis, P-3000 Coimbra, Portugal.
[Aerts, G.; Berthoumieux, E.; Dridi, W.; Gunsing, F.; Lampoudis, C.; Pancin, J.; Perrot, L.; Plukis, A.] CEA Saclay, DSM Irfu, F-91191 Gif Sur Yvette, France.
[Cortes, G.; Poch, A.; Pretel, C.] Univ Politecn Cataluna, Barcelona, Spain.
[Couture, A.; Cox, J.; O'Brien, S.; Wiescher, M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Dillmann, I.; Heil, M.; Kaeppeler, F.; Mosconi, M.; Plag, R.; Voss, F.; Walter, S.; Wisshak, K.] KIT, Inst Nucl Phys, Karlsruhe, Germany.
[Dolfini, R.; Rubbia, C.] Univ Pavia, I-27100 Pavia, Italy.
[Domingo-Pardo, C.; Tain, J. L.] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46003 Valencia, Spain.
[Eleftheriadis, C.; Lampoudis, C.; Savvidis, I.] Aristotle Univ Thessaloniki, Thessaloniki, Greece.
[Furman, W.; Konovalov, V.] Joint Inst Nucl Res, Frank Lab, Dubna, Russia.
[Goverdovski, A.; Ketlerov, V.] Inst Phys & Power Engn, Obninsk, Kaluga Region, Russia.
[Alvarez, H.; Duran, I.; Paradela, C.; Tarrio, D.] Univ Santiago de Compostela, Santiago De Compostela, Spain.
[Haas, B.] Ctr Natl Rech Sci IN2P3 CENBG, Bordeaux, France.
[Haight, R.; Reifarth, R.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Igashira, M.] Tokyo Inst Technol, Tokyo 152, Japan.
[Koehler, P.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Kossionides, E.] NCSR, Athens, Greece.
[Massimi, C.; Vannini, G.] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy.
[Massimi, C.; Vannini, G.] Sez INFN Bologna, Bologna, Italy.
[Oshima, M.] Japan Atom Energy Res Inst, Tokai, Japan.
[Diakaki, M.; Papadopoulos, C.; Vlastou, R.] Natl Tech Univ Athens, GR-10682 Athens, Greece.
[Lederer, C.; Pavlik, A.] Univ Vienna, Inst Isotopenforsch & Kernphys, A-1010 Vienna, Austria.
[Pavlopoulos, P.] Pole Univ Leonard de Vinci, Paris, France.
[Plompen, A.; Rullhusen, P.] CEC JRC IRMM, Geel, Belgium.
[Rauscher, T.] Univ Basel, Dept Phys & Astron, Basel, Switzerland.
[Mengoni, A.; Rosetti, M.; Ventura, A.] ENEA, Bologna, Italy.
RP Sarmento, R (reprint author), ITN, Sacavem, Portugal.
RI Cano Ott, Daniel/K-4945-2014; Quesada Molina, Jose Manuel/K-5267-2014;
Mendoza Cembranos, Emilio/K-5789-2014; Guerrero, Carlos/L-3251-2014;
Gonzalez Romero, Enrique/L-7561-2014; Pretel Sanchez, Carme/L-8287-2014;
Martinez, Trinitario/K-6785-2014; Capote Noy, Roberto/M-1245-2014;
Massimi, Cristian/B-2401-2015; Duran, Ignacio/H-7254-2015; Alvarez Pol,
Hector/F-1930-2011; Massimi, Cristian/K-2008-2015; Neves,
Francisco/H-4744-2013; Goncalves, Isabel/J-6954-2013; Vaz,
Pedro/K-2464-2013; Lopes, Isabel/A-1806-2014; Cortes,
Guillem/B-6869-2014; Tain, Jose L./K-2492-2014; Becvar,
Frantisek/D-3824-2012; Jericha, Erwin/A-4094-2011; Chepel,
Vitaly/H-4538-2012; Ventura, Alberto/B-9584-2011; Rauscher,
Thomas/D-2086-2009; Lindote, Alexandre/H-4437-2013; Lederer,
Claudia/H-4677-2013; Paradela, Carlos/J-1492-2012; Gramegna,
Fabiana/B-1377-2012; Calvino, Francisco/K-5743-2014; Mengoni,
Alberto/I-1497-2012;
OI Cano Ott, Daniel/0000-0002-9568-7508; Quesada Molina, Jose
Manuel/0000-0002-2038-2814; Mendoza Cembranos,
Emilio/0000-0002-2843-1801; Guerrero, Carlos/0000-0002-2111-546X;
Gonzalez Romero, Enrique/0000-0003-2376-8920; Martinez,
Trinitario/0000-0002-0683-5506; Capote Noy, Roberto/0000-0002-1799-3438;
Massimi, Cristian/0000-0001-9792-3722; Alvarez Pol,
Hector/0000-0001-9643-6252; Massimi, Cristian/0000-0003-2499-5586;
Neves, Francisco/0000-0003-3635-1083; Vaz, Pedro/0000-0002-7186-2359;
Lopes, Isabel/0000-0003-0419-903X; Jericha, Erwin/0000-0002-8663-0526;
Ventura, Alberto/0000-0001-6748-7931; Rauscher,
Thomas/0000-0002-1266-0642; Lindote, Alexandre/0000-0002-7965-807X;
Paradela Dobarro, Carlos/0000-0003-0175-8334; Koehler,
Paul/0000-0002-6717-0771; Domingo-Pardo, Cesar/0000-0002-2915-5466;
Tarrio, Diego/0000-0002-9858-3341; Marques, Rui/0000-0003-3549-8198;
Gramegna, Fabiana/0000-0001-6112-0602; Calvino,
Francisco/0000-0002-7198-4639; Mengoni, Alberto/0000-0002-2537-0038;
Lozano Leyva, Manuel Luis/0000-0003-2853-4103; Pavlik,
Andreas/0000-0001-7526-3372; Goncalves, Isabel/0000-0002-1997-955X;
Sarmento, Raul/0000-0002-5018-5467; Chepel, Vitaly/0000-0003-0675-4586
FU European Commission [FIKW-CT-2000-00107]; Portuguese Foundation for
Science and Technology (FCT) [SFRH/BD/43811/2008]
FX This work has been supported by the European Commission's 5th
Framework Programme under contract number FIKW-CT-2000-00107
(n_TOF-ND-ADS Project). The corresponding author of this work wishes to
acknowledge the support of the Portuguese Foundation for Science and
Technology (FCT) through grant SFRH/BD/43811/2008.
NR 34
TC 9
Z9 9
U1 2
U2 23
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD OCT 31
PY 2011
VL 84
IS 4
AR 044618
DI 10.1103/PhysRevC.84.044618
PG 10
WC Physics, Nuclear
SC Physics
GA 841OF
UT WOS:000296521000006
ER
PT J
AU Vogt, R
Randrup, J
AF Vogt, R.
Randrup, J.
TI Event-by-event study of neutron observables in spontaneous and thermal
fission
SO PHYSICAL REVIEW C
LA English
DT Article
ID PROMPT NEUTRONS; FRAGMENTS; EMISSION; ENERGY; MASS; MULTIPLICITY;
CF-252; PU-239; CM-244; U-235
AB The event-by-event fission model FREYA is extended to spontaneous fission of actinides and a variety of neutron observables are studied for spontaneous fission and fission induced by thermal neutrons with a view toward possible applications for detection of special nuclear materials.
C1 [Vogt, R.] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94551 USA.
[Vogt, R.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
[Randrup, J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
RP Vogt, R (reprint author), Lawrence Livermore Natl Lab, Div Phys, POB 5508, Livermore, CA 94551 USA.
FU Office of Nuclear Physics in the US Department of Energy's Office of
Science [DE-AC02-05CH11231, DE-AC52-07NA27344]; National Science
Foundation [NSF PHY-0555660]; US Department of Energy National Nuclear
Security Administration Office of Nonproliferation and Verification
Research and Development
FX We wish to acknowledge helpful discussions with A. Bernstein, D. A.
Brown, and C. Hagmann. This work was supported by the Office of Nuclear
Physics in the US Department of Energy's Office of Science under
Contracts No. DE-AC02-05CH11231 (J.R.) and No. DE-AC52-07NA27344 (R. V.)
and by the National Science Foundation, Grant No. NSF PHY-0555660 (R.
V.). This research is also supported by the US Department of Energy
National Nuclear Security Administration Office of Nonproliferation and
Verification Research and Development.
NR 36
TC 19
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U1 0
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD OCT 31
PY 2011
VL 84
IS 4
AR 044621
DI 10.1103/PhysRevC.84.044621
PG 14
WC Physics, Nuclear
SC Physics
GA 841OF
UT WOS:000296521000009
ER
PT J
AU Edwards, RG
Dudek, JJ
Richards, DG
Wallace, SJ
AF Edwards, Robert G.
Dudek, Jozef J.
Richards, David G.
Wallace, Stephen J.
TI Excited state baryon spectroscopy from lattice QCD
SO PHYSICAL REVIEW D
LA English
DT Article
ID QUARK-MODEL; MASSES
AB We present a calculation of the Nucleon and Delta excited state spectra on dynamical anisotropic clover lattices. A method for operator construction is introduced that allows for the reliable identification of the continuum spins of baryon states, overcoming the reduced symmetry of the cubic lattice. Using this method, we are able to determine a spectrum of single-particle states for spins up to and including J = 7/2, of both parities, the first time this has been achieved in a lattice calculation. We find a spectrum of states identifiable as admixtures of SU(6) circle times O(3) representations and a counting of levels that is consistent with the nonrelativistic qqq constituent quark model. This dense spectrum is incompatible with quark-diquark model solutions to the "missing resonance problem" and shows no signs of parity doubling of states.
C1 [Edwards, Robert G.; Dudek, Jozef J.; Richards, David G.] Jefferson Lab, Newport News, VA 23606 USA.
[Dudek, Jozef J.] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA.
[Wallace, Stephen J.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
RP Edwards, RG (reprint author), Jefferson Lab, 12000 Jefferson Ave, Newport News, VA 23606 USA.
EM edwards@jlab.org; dudek@jlab.org; dgr@jlab.org; stevewal@umd.edu
FU U.S. Department of Energy INCITE at Oak Ridge National Lab; NSF Teragrid
at the Texas Advanced Computer Center; Pittsburgh Supercomputer Center;
Jefferson Laboratory; U.S. Department of Energy [DE-FG02-93ER-40762,
DE-AC05-06OR23177]
FX We thank our colleagues within the Hadron Spectrum Collaboration. We
also acknowledge illuminating discussions with Simon Capstick and
Winston Roberts. CHROMA [45] and QUDA [46,47] were used to perform this
work on clusters at Jefferson Laboratory under the USQCD Initiative and
the LQCD ARRA project. Gauge configurations were generated using
resources awarded from the U.S. Department of Energy INCITE program at
Oak Ridge National Lab, the NSF Teragrid at the Texas Advanced Computer
Center and the Pittsburgh Supercomputer Center, as well as at Jefferson
Laboratory. S.J.W. acknowledges support from U.S. Department of Energy
Contract No. DE-FG02-93ER-40762. R. G. E., J.J.D. and D. G. R.
acknowledge support from U.S. Department of Energy Contract No.
DE-AC05-06OR23177, under which Jefferson Science Associates, LLC,
manages and operates Jefferson Laboratory.
NR 47
TC 150
Z9 152
U1 1
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD OCT 31
PY 2011
VL 84
IS 7
AR 074508
DI 10.1103/PhysRevD.84.074508
PG 29
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 846HM
UT WOS:000296887800002
ER
PT J
AU Ren, Y
Almagri, AF
Fiksel, G
Prager, SC
Sarff, JS
Terry, PW
AF Ren, Y.
Almagri, A. F.
Fiksel, G.
Prager, S. C.
Sarff, J. S.
Terry, P. W.
TI Experimental Observation of Anisotropic Magnetic Turbulence in a
Reversed Field Pinch Plasma
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID MAGNETOHYDRODYNAMIC DYNAMO; ALFVEN WAVES; FLUCTUATIONS; TRANSPORT;
DISCRETE
AB In this Letter we report an experimental study of fully developed anisotropic magnetic turbulence in a laboratory plasma. The turbulence has broad (narrow) spectral power in the perpendicular (parallel) direction to the local mean magnetic field extending beyond the ion cyclotron frequency. Its k(perpendicular to) spectrum is asymmetric in the ion and electron diamagnetic directions. The wave number scaling for the short wavelength fluctuations shows exponential falloff indicative of dissipation. A standing wave structure is found for the turbulence in the minor radial direction of the toroidal plasma.
C1 [Ren, Y.; Almagri, A. F.; Fiksel, G.; Prager, S. C.; Sarff, J. S.; Terry, P. W.] Univ Wisconsin, Dept Phys, Ctr Magnet Self Org Lab & Astrophys Plasmas, Madison, WI 53706 USA.
RP Ren, Y (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM yren@pppl.gov
FU DOE; NSF
FX The authors are grateful to the MST research team for their excellent
help and support. This work is funded by DOE and NSF.
NR 24
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U1 0
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD OCT 31
PY 2011
VL 107
IS 19
AR 195002
DI 10.1103/PhysRevLett.107.195002
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 847WY
UT WOS:000297004600008
PM 22181614
ER
PT J
AU Giovannini, L
Montoncello, F
Nizzoli, F
Vavassori, P
Grimsditch, M
AF Giovannini, L.
Montoncello, F.
Nizzoli, F.
Vavassori, P.
Grimsditch, M.
TI Comment on "Mapping of localized spin-wave excitations by near-field
Brillouin light scattering" [Appl. Phys. Lett. 97, 152502 (2010)]
SO APPLIED PHYSICS LETTERS
LA English
DT Editorial Material
C1 [Giovannini, L.; Montoncello, F.; Nizzoli, F.] Dipartimento Fis, I-44122 Ferrara, Italy.
[Giovannini, L.; Montoncello, F.; Nizzoli, F.] CNISM, I-44122 Ferrara, Italy.
[Vavassori, P.] CIC NanoGUNE Consolider, Donostia San Sebastian 20018, Spain.
[Vavassori, P.] Basque Fdn Sci, IKERBASQUE, Bilbao 48011, Spain.
[Grimsditch, M.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Giovannini, L (reprint author), Dipartimento Fis, Via G Saragat 1, I-44122 Ferrara, Italy.
EM giovannini@fe.infn.it
RI Vavassori, Paolo/B-4299-2014; nanoGUNE, CIC/A-2623-2015
OI Vavassori, Paolo/0000-0002-4735-6640;
NR 8
TC 1
Z9 1
U1 1
U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD OCT 31
PY 2011
VL 99
IS 18
AR 186101
DI 10.1063/1.3656967
PG 1
WC Physics, Applied
SC Physics
GA 843GD
UT WOS:000296659400104
ER
PT J
AU Vayssieres, L
Persson, C
Guo, JH
AF Vayssieres, L.
Persson, C.
Guo, J. -H.
TI Size effect on the conduction band orbital character of anatase TiO2
nanocrystals
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID X-RAY-ABSORPTION; ELECTRON-GAS; TITANIUM; EFFICIENCY; OXIDES; WATER
AB O 1s x-ray absorption spectroscopy and first principle calculation have been used to probe the size effect on the orbital character and hybridization of the conduction band of anatase TiO2 nanocrystals over two orders of magnitude in diameter (2-200 nm). The appearance and predominance of unoccupied delocalized states derived from the hybridization of antibonding O 2p and Ti 4s rather than 3d is observed when the nanoparticle size approaches the exciton radius. These results provide an experimental evidence of quantum size effect on unoccupied states in anatase TiO2 nanocrystals. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3657147]
C1 [Vayssieres, L.] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki, Japan.
[Persson, C.] Univ Oslo, Dept Phys, Oslo, Norway.
[Guo, J. -H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Vayssieres, L (reprint author), Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki, Japan.
EM Vayssieres.lionel@nims.go.jp
NR 36
TC 18
Z9 18
U1 0
U2 40
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD OCT 31
PY 2011
VL 99
IS 18
AR 183101
DI 10.1063/1.3657147
PG 3
WC Physics, Applied
SC Physics
GA 843GD
UT WOS:000296659400074
ER
PT J
AU Chiu, YT
Padmanabhan, M
Gokmen, T
Shabani, J
Tutuc, E
Shayegan, M
Winkler, R
AF Chiu, YenTing
Padmanabhan, Medini
Gokmen, T.
Shabani, J.
Tutuc, E.
Shayegan, M.
Winkler, R.
TI Effective mass and spin susceptibility of dilute two-dimensional holes
in GaAs
SO PHYSICAL REVIEW B
LA English
DT Article
ID CYCLOTRON-RESONANCE; QUANTUM-WELLS; ELECTRON-GAS; SYSTEMS;
HETEROSTRUCTURES; HETEROJUNCTIONS; ENHANCEMENT
AB We report effective hole mass (m*) measurements through analyzing the temperature dependence of Shubnikov-de Haas oscillations in dilute (density p similar to 7 x 10(10) cm(-2), r(s) similar to 6) two-dimensional (2D) hole systems confined to a 20-nm-wide, (311) A GaAs quantum well. The holes in this system occupy two nearly degenerate spin subbands whose m* we measure to be similar to 0.2 (in units of the free electron mass). Despite the relatively large r(s) in our 2D system, the measured m* is in reasonably good agreement with the results of our energy band calculations, which do not take interactions into account. We then apply a sufficiently strong parallel magnetic field to fully depopulate one of the spin subbands, and measure m* for the populated subband. We find that this latter m* is close to the m* we measure in the absence of the parallel field. We also deduce the spin susceptibility of the 2D hole system from the depopulation field, and we conclude that the susceptibility is enhanced by about 50% relative to the value expected from the band calculations.
C1 [Chiu, YenTing; Padmanabhan, Medini; Gokmen, T.; Shabani, J.; Tutuc, E.; Shayegan, M.] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA.
[Winkler, R.] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA.
[Winkler, R.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Chiu, YT (reprint author), Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA.
FU Department of Energy [DEFG02-00-ER45841]; National Science Foundation
[MRSEC DMR-0819860, ECCS-1001719, 0829872]; DOE BES [DE-AC02-06CH11357]
FX We acknowledge support through the Department of Energy (Grant No.
DEFG02-00-ER45841) for sample fabrication, and the National Science
Foundation (Grants No. MRSEC DMR-0819860, No. ECCS-1001719, and No.
0829872) for characterization and measurements. Work at Argonne was
supported by DOE BES under Contract No. DE-AC02-06CH11357.
NR 47
TC 8
Z9 8
U1 1
U2 10
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD OCT 31
PY 2011
VL 84
IS 15
AR 155459
DI 10.1103/PhysRevB.84.155459
PG 7
WC Physics, Condensed Matter
SC Physics
GA 845VT
UT WOS:000296853700026
ER
PT J
AU Matsuo, M
Okamoto, S
Koshibae, W
Mori, M
Maekawa, S
AF Matsuo, M.
Okamoto, S.
Koshibae, W.
Mori, M.
Maekawa, S.
TI Nonmonotonic temperature dependence of thermopower in strongly
correlated electron systems
SO PHYSICAL REVIEW B
LA English
DT Article
ID MEAN-FIELD THEORY; INFINITE DIMENSIONS; TRANSPORT-PROPERTIES;
HUBBARD-MODEL; TRANSITION; METALS
AB We examine the temperature dependence of thermopower in the single-band Hubbard model using dynamical mean-field theory. The strong Coulomb interaction brings about the coherent-to-incoherent crossover as temperature increases. As a result, the thermopower exhibits nonmonotonic temperature dependence and asymptotically approaches values given by the Mott-Heikes formula. In the light of our theoretical result, we discuss the thermopower in some transition metal oxides. The magnetic field dependence of the thermopower is also discussed.
C1 [Matsuo, M.; Mori, M.; Maekawa, S.] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan.
[Matsuo, M.; Koshibae, W.; Mori, M.; Maekawa, S.] Japan Sci & Technol Agcy, CREST, Tokyo 1020075, Japan.
[Okamoto, S.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Koshibae, W.] RIKEN, Cross Correlated Mat Res Grp CMRG, Wako, Saitama 3510198, Japan.
RP Matsuo, M (reprint author), Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan.
EM matsuo.mari@jaea.go.jp
RI Okamoto, Satoshi/G-5390-2011; Koshibae, Wataru/B-2838-2013
OI Okamoto, Satoshi/0000-0002-0493-7568;
FU MEXT [19204035, 21360043, 22102501]; JST; FIRST-Program; US Department
of Energy, Office of Basic Energy Sciences, Materials Sciences and
Engineering Division
FX The authors are grateful to V. Zlatic for useful discussions. This work
is partly supported by Grants-in-Aid for Scientific Research from MEXT
(Grants No. 19204035, No. 21360043, and No. 22102501), the "K" computer
project of the Nanoscience Program, JST-CREST, and the FIRST-Program.
S.O. was supported by the US Department of Energy, Office of Basic
Energy Sciences, Materials Sciences and Engineering Division.
NR 32
TC 7
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U1 0
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD OCT 31
PY 2011
VL 84
IS 15
AR 153107
DI 10.1103/PhysRevB.84.153107
PG 4
WC Physics, Condensed Matter
SC Physics
GA 845VT
UT WOS:000296853700001
ER
PT J
AU Pan, W
Baldwin, KW
West, KW
Pfeiffer, LN
Tsui, DC
AF Pan, W.
Baldwin, K. W.
West, K. W.
Pfeiffer, L. N.
Tsui, D. C.
TI Quantitative examination of the collapse of spin splitting in the
quantum Hall regime
SO PHYSICAL REVIEW B
LA English
DT Article
ID 2-DIMENSIONAL ELECTRON-GAS; MAGNETIC-FIELDS; EXCHANGE ENHANCEMENT;
EFFECTIVE-MASS; DENSITY; SYSTEMS; STATES
AB We have quantitatively tested the theoretical model on the collapse of spin slitting in the quantum Hall effect regime proposed by Fogler and Shklovskii [ Phys. Rev. B 52, 17366 (1995)] in a high-mobility two-dimensional electron system (2DES) realized in a heterojunction insulated-gate field-effect transistor. In the 2DES density range between n = 2 x 10(10) and 2 x 10(11) cm(-2), the Landau level number N displays a power-law dependence on the critical electron density n(c) where the spin splitting collapses and N = 11.47 x n(c)(0.64 +/- 0.01) (n(c) is in units of 10(11) cm(-2)). This power-law dependence is in good agreement with the theoretical prediction in the low-density regime.
C1 [Pan, W.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Baldwin, K. W.; West, K. W.; Pfeiffer, L. N.; Tsui, D. C.] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA.
RP Pan, W (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
FU DOE Office of Basic Energy Science [DE-AC52-06NA25396,
DE-AC04-94AL85000]; DOE [DE-FG02-98ER45683]; Gordon and Betty Moore
Foundation; National Science Foundation through the Princeton Center for
Complex Materials [DMR-0819860]
FX We thank M. Fogler and M. Lilly for very helpful discussions. The work
at Sandia was supported by the DOE Office of Basic Energy Science and
was performed, in part, at the Center for Integrated Nanotechnologies, a
US Department of Energy, Office of Basic Energy Sciences, user facility
at Los Alamos National Laboratory (Contract No. DE-AC52-06NA25396) and
Sandia National Laboratories (Contract No. DE-AC04-94AL85000). We would
like to thank Michael Lilly and John Nogan for their help. The work at
Princeton was supported by the DOE under Grant No. DE-FG02-98ER45683 and
was partially funded by the Gordon and Betty Moore Foundation as well as
the National Science Foundation MRSEC Program through the Princeton
Center for Complex Materials (Grant No. DMR-0819860). Sandia National
Laboratories is a multiprogram laboratory managed and operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Corporation,
for the US Department of Energy's National Nuclear Security
Administration under Contract No. DE-AC04-94AL85000.
NR 24
TC 5
Z9 5
U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD OCT 31
PY 2011
VL 84
IS 16
AR 161307
DI 10.1103/PhysRevB.84.161307
PG 4
WC Physics, Condensed Matter
SC Physics
GA 845WP
UT WOS:000296857700001
ER
PT J
AU Dan, WL
Fregoso, BM
Guo, H
Chien, CC
Levin, K
AF Dan Wulin
Fregoso, Benjamin M.
Guo, Hao
Chien, Chih-Chun
Levin, K.
TI Conductivity in pseudogapped superconductors: A sum-rule-consistent
preformed-pair scenario
SO PHYSICAL REVIEW B
LA English
DT Article
ID T-C; STATE; CROSSOVER
AB We calculate the dc conductivity sigma in a pseudogapped high T(c) superconductor within a precursor superconductivity theory which is consistent with gauge invariance. Our results contain physical effects beyond those identified previously. Rather than presuming that lifetime effects dominate the T dependence of transport, here we show (consistent with growing experimental support) that the temperature dependence of the effective carrier number is a natural consequence of the pseudogap, and demonstrate reasonable agreement with dc transport in the underdoped cuprates.
C1 [Dan Wulin; Fregoso, Benjamin M.; Levin, K.] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
[Dan Wulin; Fregoso, Benjamin M.; Levin, K.] Univ Chicago, Dept Phys, Chicago, IL 60637 USA.
[Guo, Hao] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China.
[Chien, Chih-Chun] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Dan, WL (reprint author), Univ Chicago, James Franck Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA.
FU NSF-MRSEC [0820054]; US Department of Energy via the LANL/LDRD
FX This work is supported by NSF-MRSEC Grant No. 0820054. C. C. C.
acknowledges the support of the US Department of Energy via the
LANL/LDRD Program.
NR 24
TC 0
Z9 0
U1 1
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD OCT 31
PY 2011
VL 84
IS 14
AR 140509
DI 10.1103/PhysRevB.84.140509
PG 4
WC Physics, Condensed Matter
SC Physics
GA 843JH
UT WOS:000296667600004
ER
PT J
AU Thaler, A
Hodovanets, H
Torikachvili, MS
Ran, S
Kracher, A
Straszheim, W
Yan, JQ
Mun, E
Canfield, PC
AF Thaler, A.
Hodovanets, H.
Torikachvili, M. S.
Ran, S.
Kracher, A.
Straszheim, W.
Yan, J. Q.
Mun, E.
Canfield, P. C.
TI Physical and magnetic properties of Ba(Fe1-xMnx)(2)As-2 single crystals
SO PHYSICAL REVIEW B
LA English
DT Article
ID SUPERCONDUCTIVITY; BAFE2AS2
AB Single crystals of Ba(Fe1-xMnx)(2)As-2, 0 < x < 0.148, have been grown and characterized by structural, magnetic, electrical transport, and thermopower measurements. Although growths of single crystals of Ba(Fe1-xMnx)(2)As-2 for the full 0 <= x <= 1 range were made, we find evidence for phase separation (associated with some form of immiscibility) starting for x > 0.1-0.2. Our measurements show that whereas the structural/magnetic phase transition found in pure BaFe2As2 at 134 K is initially suppressed by Mn substitution, superconductivity is not observed at any substitution level. Although the effect of hydrostatic pressure up to 20 kbar in the parent BaFe2As2 compound is to suppress the structural/magnetic transition at the approximate rate of 0.9 K/kbar, the effects of pressure and Mn substitution in the x = 0.102 compound are not cumulative. Phase diagrams of transition temperature versus substitution concentration x based on electrical transport, magnetization, and thermopower measurements have been constructed and compared to those of the Ba(Fe1-xTMx)(2)As-2 (TM=Co and Cr) series.
C1 [Thaler, A.; Hodovanets, H.; Torikachvili, M. S.; Ran, S.; Kracher, A.; Straszheim, W.; Yan, J. Q.; Mun, E.; Canfield, P. C.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Thaler, A.; Hodovanets, H.; Torikachvili, M. S.; Ran, S.; Kracher, A.; Straszheim, W.; Yan, J. Q.; Mun, E.; Canfield, P. C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Torikachvili, M. S.] San Diego State Univ, Dept Phys, San Diego, CA 92182 USA.
RP Thaler, A (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RI Canfield, Paul/H-2698-2014; Thaler, Alexander/J-5741-2014
OI Thaler, Alexander/0000-0001-5066-8904
FU Department of Energy, Basic Energy Sciences [DE-AC02-07CH11358];
National Science Foundation [DMR-0805335]
FX Work at the Ames Laboratory was supported by the Department of Energy,
Basic Energy Sciences, under Contract No. DE-AC02-07CH11358. Pressure
measurements were supported by the National Science Foundation under
Grant No. DMR-0805335. We would like to thank S. Bud'ko, A. Kreyssig, S.
Kim, X. Lin, R. Hu, E. Colombier, W. McCallum, K. Dennis, and M. G. Kim
for help and useful discussions.
NR 39
TC 29
Z9 29
U1 5
U2 31
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
EI 1550-235X
J9 PHYS REV B
JI Phys. Rev. B
PD OCT 31
PY 2011
VL 84
IS 14
AR 144528
DI 10.1103/PhysRevB.84.144528
PG 10
WC Physics, Condensed Matter
SC Physics
GA 843JH
UT WOS:000296667600019
ER
PT J
AU Doughty, B
Haber, LH
Leone, SR
AF Doughty, Benjamin
Haber, Louis H.
Leone, Stephen R.
TI Pump-probe photoelectron velocity-map imaging of autoionizing singly
excited 4s(1)4p(6)np(1)(n=7,8) and doubly excited 4s(2)4p(4)5s(1)6p(1)
resonances in atomic krypton
SO PHYSICAL REVIEW A
LA English
DT Article
ID ANGULAR-DISTRIBUTIONS; MULTIPHOTON IONIZATION; PHOTOIONIZATION
CONTINUUM; CONFIGURATION-INTERACTION; ABSORPTION-SPECTRA; LINE-PROFILES;
STATES; XENON; KR; PARAMETERS
AB Pump-probe photoelectron velocity-map imaging, using 27-eV high-harmonic excitation and 786-nm ionization, is used to resolve overlapping autoionizing resonances in atomic krypton, obtaining two-photon photoelectron angular distributions (PADs) for singly and doubly excited states. Two features in the photoelectron spectrum are assigned to singly excited 4s(1)4p(6)np(1) (n = 7,8) configurations and four features provide information about double excitation configurations. The anisotropy parameters for the singly excited 7p configuration are measured to be beta(2) = 1.61 +/- 0.06 and beta(4) = 1.54 +/- 0.16 while the 8p configuration gives beta(2) = 1.23 +/- 0.19 and beta(4) = 0.60 +/- 0.15. These anisotropies most likely represent the sum of overlapping PADs from states of singlet and triplet spin multiplicities. Of the four bands corresponding to ionization of doubly excited states, two are assigned to 4s(2)4p(4)5s(1)6p(1) configurations that are probed to different J-split ion states. The two remaining doubly excited states are attributed to a previously observed, but unassigned, resonance in the vacuum-ultraviolet photoabsorption spectrum. The PADs from each of the double excitation states are also influenced by overlap from neighboring states that are not completely spectrally resolved. The anisotropies of the observed double excitation states are reported, anticipating future theoretical and experimental work to separate the overlapping PADs into the state resolved PADs. The results can be used to test theories of excited state ionization.
C1 Univ Calif Berkeley, Dept Chem, Dept Phys, Berkeley, CA 94720 USA.
Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Doughty, B (reprint author), Columbia Univ, Dept Chem, New York, NY 10027 USA.
EM srl@berkeley.edu
RI Haber, Louis/A-6762-2013; Doughty, Benjamin /M-5704-2016
OI Doughty, Benjamin /0000-0001-6429-9329
FU Office of Science, Office of Basic Energy Sciences, Chemical Sciences,
Geosciences, and Biosciences Division, U.S. Department of Energy
[DE-AC02-05CH11231]
FX The authors acknowledge many useful and stimulating conversations with
Dr. Zhi-Heng Loh. Financial support is provided by the Director, Office
of Science, Office of Basic Energy Sciences, Chemical Sciences,
Geosciences, and Biosciences Division, U.S. Department of Energy, under
Contract No. DE-AC02-05CH11231.
NR 34
TC 3
Z9 3
U1 2
U2 32
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
J9 PHYS REV A
JI Phys. Rev. A
PD OCT 31
PY 2011
VL 84
IS 4
AR 043433
DI 10.1103/PhysRevA.84.043433
PG 8
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 838XW
UT WOS:000296328600013
ER
PT J
AU Parker, D
Singh, DJ
AF Parker, David
Singh, David J.
TI Potential Thermoelectric Performance from Optimization of Hole-Doped
Bi2Se3
SO PHYSICAL REVIEW X
LA English
DT Article
ID THERMAL-CONDUCTIVITY; TRANSPORT-PROPERTIES; THIN-FILMS; SUPERLATTICES;
MERIT; CRYSTALS; FIGURE; MOBILITY; PBSE; PBTE
AB We present an analysis of the potential thermoelectric performance of hole-doped Bi2Se3, which is commonly considered to show inferior room temperature performance when compared to Bi2Te3. We find that if the lattice thermal conductivity can be reduced by nanostructuring techniques (as have been applied to Bi2Te3 in Refs. [W. Xie, X. Tang, Y. Yan, Q. Zhang, and T. M. Tritt, Unique Nanostructures and Enhanced Thermoelectric Performance of Melt-Spun BiSbTe Alloys, Appl. Phys. Lett. 94, 102111 (2009); B. Poudel et al., High-Thermoelectric Performance of Nanostructured Bismuth Antimony Telluride Bulk Alloys, Science 320, 634 (2008).]) the material may show optimized ZT values of unity or more in the 300-500 K temperature range and thus be suitable for cooling and moderate temperature waste heat recovery and thermoelectric solar cell applications. Central to this conclusion are the larger band gap and the relatively heavier valence bands of Bi2Se3.
C1 [Parker, David; Singh, David J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Parker, D (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
FU U.S. Department of Energy; EERE; Vehicle Technologies; Propulsion
Materials Program; Solid State Solar-Thermal Energy Conversion Center
(S3 TEC), an Energy Frontier Research Center; U.S. Department of Energy,
Office of Science, Office of Basic Energy Sciences
[DE-SC0001299/DE-FG02-09ER46577]
FX We thank Jiong Yang, Wenqing Zhang, and Zhifeng Ren for useful
discussions. This research was supported by the U.S. Department of
Energy, EERE, Vehicle Technologies, Propulsion Materials Program (D.
P.), and the Solid State Solar-Thermal Energy Conversion Center (S3
TEC), an Energy Frontier Research Center funded by the U.S. Department
of Energy, Office of Science, Office of Basic Energy Sciences under
Contract No. DE-SC0001299/DE-FG02-09ER46577 (D.J.S.).
NR 43
TC 36
Z9 36
U1 5
U2 82
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2160-3308
J9 PHYS REV X
JI Phys. Rev. X
PD OCT 31
PY 2011
VL 1
IS 2
AR 021005
DI 10.1103/PhysRevX.1.021005
PG 9
WC Physics, Multidisciplinary
SC Physics
GA 029OX
UT WOS:000310506300001
ER
PT J
AU Harvey, SD
Wright, BW
AF Harvey, Scott D.
Wright, Bob W.
TI Development of a simple field test for vehicle exhaust to detect illicit
use of dyed diesel fuel
SO TALANTA
LA English
DT Article
DE Vehicle exhaust analysis; Dyed diesel fuel; CI Solvent Red 164; Alkyl
aryl amines; Micro-analytical color tests; Tax evasion
ID AROMATIC-AMINES; TEMPERATURE; FLUORESCAMINE; PERFORMANCE; ENGINE; MS
AB Tax-free diesel fuel is intended for off-road uses such as agricultural operations, but illicit use of this fuel does occur and is a convenient way of evading payment of excise taxes. Current enforcement to prevent this practice involves visual inspection for the red azo dye added to the fuel to indicate its tax-free status. This approach, while very effective, has shortcomings such as the invasive nature of the tests and/or various deceptive tactics applied by tax evaders. A test designed to detect illicit dyed-fuel use by analyzing the vehicle exhaust would circumvent these shortcomings. This paper describes the development of a simple color spot test designed to detect the use of tax-free (i.e., dyed) fuel by analyzing the engine exhaust. Development efforts first investigated the combustion products of C.I. Solvent Red 164 (the azo dye formulation used in the United States to tag tax-free fuel). A variety of aryl amines were identified as characteristic molecular remnants that appear to survive combustion. A number of micro-analytical color tests specific for aryl amines were then investigated. One test that detected aryl amines by reacting with 4-(dimethylamino)benzaldehyde seemed to be particularly applicable and was used in a proof-of-principle experiment. The 4-(dimethylamino)benzaldehyde color spot test was able to clearly distinguish between engines that were burning regular fuel and those that were burning dyed diesel fuel. Further development will refine this color spot test to provide an easy-to-use field test. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Harvey, Scott D.; Wright, Bob W.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Harvey, SD (reprint author), Pacific NW Natl Lab, POB 999-MSIN P7-50, Richland, WA 99352 USA.
EM scott.harvey@pnnl.gov
FU Internal Revenue Service (IRS); U.S. Department of Energy (DOE)
[DE-AC05-76RLO1830]
FX This work was supported by the Internal Revenue Service (IRS) under an
Interagency Agreement with the U.S. Department of Energy (DOE) under
Contract DE-AC05-76RLO1830. The views, opinions, and findings contained
within this paper are those of the authors and should not be construed
as an official position, policy, or decision of the DOE or IRS unless
designated by other documentation. The authors gratefully acknowledge
the GC/MS
NR 25
TC 2
Z9 2
U1 2
U2 8
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0039-9140
J9 TALANTA
JI Talanta
PD OCT 30
PY 2011
VL 86
BP 148
EP 156
DI 10.1016/j.talanta.2011.08.050
PG 9
WC Chemistry, Analytical
SC Chemistry
GA 862XB
UT WOS:000298126300019
PM 22063524
ER
PT J
AU Elezovic, NR
Babic, BM
Radmilovic, VR
Vracar, LM
Krstajic, NV
AF Elezovic, N. R.
Babic, B. M.
Radmilovic, V. R.
Vracar, Lj. M.
Krstajic, N. V.
TI Nb-TiO2 supported platinum nanocatalyst for oxygen reduction reaction in
alkaline solutions
SO ELECTROCHIMICA ACTA
LA English
DT Article
DE Nb-TiO2 support; Nb-TiO2/Pt catalyst; Pt nanoparticles; Oxygen reduction
reaction; Alkaline solutions
ID MEMBRANE FUEL-CELLS; ELECTROCHEMICAL REDUCTION; ELECTROCATALYTIC
ACTIVITY; CARBON CRYOGEL; NIOBIUM OXIDE; O-2 REDUCTION; THIN-FILM;
ELECTRODES; STABILITY; KINETICS
AB Platinum based nanocatalyst at home made Nb-TiO2 support was synthesized and characterized as the catalyst for oxygen reduction reaction in 0.1 mol dm(-3) NaOH, at 25 degrees C. Nb doped TiO2 catalyst support, containing 5% of Nb, has been synthesized by modified acid-catalyzed sol-gel procedure in non-aqueous medium. BET and X-ray diffraction (XRD) techniques were applied for characterization of synthesized supporting material. XRD analysis revealed only presence of anatase TiO2 phase in synthesized support powder. Existence of any peaks belonging to Nb compounds has not been observed, indicating Nb incorporated into the lattice.
Nb-TiO2 supported Pt nanocatalyst synthesized, using borohydride reduction method, was characterized by TEM and HRTEM techniques. Platinum nanoparticles distribution, over Nb doped TiO2 support, was quite homogenous. Mean particle size of about 4 nm was found with no pronounced particle agglomeration. Electrochemical techniques: cyclic voltammetry and linear sweep voltammetry at rotating disc electrode were applied in order to study kinetics and estimate catalytic activity of this new catalyst for the oxygen reduction reaction in alkaline solution. Two different Tafel slopes were found: one close to -90 mV dec(-1) in low current density region and other approximately 200 my dec(-1) in high current density region, which is in good accordance with literature results for oxygen reduction at Pt single crystals, as well as Pt nanocatalysts in alkaline solutions. Similar specific catalytic activity (expressed in term of kinetic current density per real surface area) of Nb(5%)-TiO2/Pt catalyst for oxygen reduction reaction in comparison with the carbon supported platinum (Vulcan/Pt) nanocatalyst, was found. (C) 2011 Published by Elsevier Ltd.
C1 [Elezovic, N. R.] Univ Belgrade, Inst Multidisciplinary Res, Belgrade, Serbia.
[Babic, B. M.] Vinca Inst Nucl Sci, Belgrade, Serbia.
[Radmilovic, V. R.] LBNL Univ Calif, Natl Ctr Electron Microscopy, Berkeley, CA USA.
[Vracar, Lj. M.; Krstajic, N. V.] Univ Belgrade, Fac Technol & Met, Belgrade 11000, Serbia.
RP Elezovic, NR (reprint author), Univ Belgrade, Inst Multidisciplinary Res, Kneza Viseslava 1, Belgrade, Serbia.
EM nelezovic@tmf.bg.ac.rs
FU Ministry of Science and Technological Development, Republic of Serbia
[172054]
FX This work is financially supported by the Ministry of Science and
Technological Development, Republic of Serbia, under Contract No.
172054.
NR 42
TC 16
Z9 18
U1 4
U2 60
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 OCT 30
PY 2011
VL 56
IS 25
BP 9020
EP 9026
DI 10.1016/j.electacta.2011.04.075
PG 7
WC Electrochemistry
SC Electrochemistry
GA 834XE
UT WOS:000295997000002
ER
PT J
AU Norberg, NS
Kostecki, R
AF Norberg, Nick S.
Kostecki, Robert
TI FTIR spectroscopy of a LiMnPO4 composite cathode
SO ELECTROCHIMICA ACTA
LA English
DT Article
DE Li-ion batteries; Cathode; LiMnPO4; FTIR spectroscopy; Jahn-Teller
distortion
ID RECHARGEABLE LITHIUM BATTERIES; POSITIVE-ELECTRODE MATERIALS; LI-ION;
LOCAL-STRUCTURE; LIFEPO4; LI-X(MNYFE1-Y)PO4; PHOSPHATES; LIXFEPO4; MN;
FE
AB A LixMnPO4 (x=1.0-0.15) composite cathode was investigated by Fourier-transform infrared spectroscopy at different states of charge. Significant spectral changes of the PO43- vibrations, which are correlated with the Jahn-Teller distortion of Mn3+ in MnPO4 and the 3rd ionization potential of Mn, were observed upon electrochemical delithiation of LiMnPO4. The presence of two sets of peaks observed in the series of delithiated LixMnPO4 spectra is consistent with a two-phase process for delithiation. These results provide insight into the structural changes that occur during lithium extraction and insertion in LiMnPO4. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Norberg, Nick S.; Kostecki, Robert] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Kostecki, R (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM r_kostecki@lbl.gov
FU Office of Vehicle Technologies of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX This work was supported by the Assistant Secretary for Energy Efficiency
and Renewable Energy, Office of Vehicle Technologies of the U.S.
Department of Energy, under contract no. DE-AC02-05CH11231. We thank
High Power Lithium, Inc. (currently the Dow Chemical Company) for
supplying samples of the LiMnPO4 electrode, and Dr. Guoying
Chen for helpful discussions.
NR 26
TC 9
Z9 9
U1 2
U2 54
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 OCT 30
PY 2011
VL 56
IS 25
BP 9168
EP 9171
DI 10.1016/j.electacta.2011.07.116
PG 4
WC Electrochemistry
SC Electrochemistry
GA 834XE
UT WOS:000295997000022
ER
PT J
AU English, NB
McDowell, NG
Allen, CD
Mora, C
AF English, Nathan B.
McDowell, Nate G.
Allen, Craig D.
Mora, Claudia
TI The effects of alpha-cellulose extraction and blue-stain fungus on
retrospective studies of carbon and oxygen isotope variation in live and
dead trees
SO RAPID COMMUNICATIONS IN MASS SPECTROMETRY
LA English
DT Article
ID WOOD; MORTALITY; RATIOS; DENDROCLIMATOLOGY; HOLOCELLULOSE; MECHANISMS;
DELTA-O-18; DROUGHT; CLIMATE; QUERCUS
AB Tree-ring carbon and oxygen isotope ratios from live and recently dead trees may reveal important mechanisms of tree mortality. However, wood decay in dead trees may alter the delta C-13 and delta O-18 values of whole wood obscuring the isotopic signal associated with factors leading up to and including physiological death. We examined whole sapwood and a-cellulose from live and dead specimens of ponderosa pine (Pinus ponderosa), one-seed juniper (Juniperous monosperma), pi on pine (Pinus edulis) and white fir (Abies concolor), including those with fungal growth and beetle frass in the wood, to determine if a-cellulose extraction is necessary for the accurate interpretation of isotopic compositions in the dead trees. We found that the offset between the delta C-13 or delta O-18 values of a-cellulose and whole wood was the same for both live and dead trees across a large range of inter-annual and regional climate differences. The method of a-cellulose extraction, whether Leavitt-Danzer or Standard Brendel modified for small samples, imparts significant differences in the delta C-13 (up to 0.4 parts per thousand) and delta O-18 (up to 1.2 parts per thousand) of a-cellulose, as reported by other studies. There was no effect of beetle frass or blue-stain fungus (Ophiostoma) on the delta C-13 and delta O-18 of whole wood or a-cellulose. The relationships between whole wood and a-cellulose delta C-13 for ponderosa, pi on and juniper yielded slopes of similar to 1, while the relationship between delta O-18 of whole wood and alpha-cellulose was less clear. We conclude that there are few analytical or sampling obstacles to retrospective studies of isotopic patterns of tree mortality in forests of the western United States. Published in 2011 by John Wiley & Sons, Ltd.
C1 [English, Nathan B.; McDowell, Nate G.; Mora, Claudia] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Allen, Craig D.] US Geol Survey, Ft Collins Sci Ctr, Jemez Mt Stn, Los Alamos, NM 87544 USA.
RP English, NB (reprint author), Los Alamos Natl Lab, EES-14,MS J495, Los Alamos, NM 87545 USA.
EM nenglish@lanl.gov
RI English, Nathan/B-4615-2008; James Cook University, TESS/B-8171-2012;
OI English, Nathan/0000-0002-6936-8079; Mora, Claudia/0000-0003-2042-0208
FU Directed Research and Development fellowship for Nathan English;
Department of Energy, Office of Biological and Environmental Research;
Western Mountain Isotope Project, a United States Geological Survey
program in Global Change
FX This research was funded in part by a Laboratory Directed Research and
Development fellowship for Nathan English, the Department of Energy,
Office of Biological and Environmental Research, and the Western
Mountain Isotope Project, a United States Geological Survey program in
Global Change. Samples were collected by Craig Allen, Jamie Resnick and
Kelsey Neal. We wish to thank Kent Coombs, Jamie Resnick, Kelsey Neal,
Kelly Steinberg, Meghan Montoya, Josh Bowman, Zach Breshears and
Samantha Stutz for preparing whole wood and alpha-cellulose samples at
the TA51 Stable Isotope Preparation Laboratory. Tree-ring cores and
sections were measured and dated by Chris Baisan at the Laboratory of
Tree-Ring Research at the University of Arizona. We are especially
grateful to Kevin Anchukaitis, who reviewed the manuscript, and to
Steven Leavitt, both of whom provided many useful insights on sample
processing strategies and results. Two anonymous reviewers provided
useful comments and greatly improved the manuscript. We are grateful to
Turin Dickman, Clif Meyer, Debora Mourachov, David Podlesak, Heath
Powers, and Nancy Torres for institutional support.
NR 25
TC 6
Z9 8
U1 2
U2 20
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0951-4198
J9 RAPID COMMUN MASS SP
JI Rapid Commun. Mass Spectrom.
PD OCT 30
PY 2011
VL 25
IS 20
BP 3083
EP 3090
DI 10.1002/rcm.5192
PG 8
WC Biochemical Research Methods; Chemistry, Analytical; Spectroscopy
SC Biochemistry & Molecular Biology; Chemistry; Spectroscopy
GA 831JH
UT WOS:000295725900014
PM 21953963
ER
PT J
AU Hay, MB
Stoliker, DL
Davis, JA
Zachara, JM
AF Hay, Michael B.
Stoliker, Deborah L.
Davis, James A.
Zachara, John M.
TI Characterization of the intragranular water regime within subsurface
sediments: Pore volume, surface area, and mass transfer limitations
SO WATER RESOURCES RESEARCH
LA English
DT Article
ID CONTAMINATED HANFORD SEDIMENTS; AGGREGATED POROUS-MEDIA; ROCK OPALINUS
CLAY; LONG-TERM SORPTION; SOLUTE TRANSPORT; ELECTROLYTE INTERFACE;
URANIUM SPECIATION; STRUCTURED SOILS; TRITIUM EXCHANGE; GAS-ADSORPTION
AB Although "intragranular'' pore space within grain aggregates, grain fractures, and mineral surface coatings may contain a relatively small fraction of the total porosity within a porous medium, it often contains a significant fraction of the reactive surface area, and can thus strongly affect the transport of sorbing solutes. In this work, we demonstrate a batch experiment procedure using tritiated water as a high-resolution diffusive tracer to characterize the intragranular pore space. The method was tested using uranium-contaminated sediments from the vadose and capillary fringe zones beneath the former 300A process ponds at the Hanford site (Washington). Sediments were contacted with tracers in artificial groundwater, followed by a replacement of bulk solution with tracer-free groundwater and the monitoring of tracer release. From these data, intragranular pore volumes were calculated and mass transfer rates were quantified using a multirate first-order mass transfer model. Tritium-hydrogen exchange on surface hydroxyls was accounted for by conducting additional tracer experiments on sediment that was vacuum dried after reaction. The complementary ("wet'' and "dry'') techniques allowed for the simultaneous determination of intragranular porosity and surface area using tritium. The Hanford 300A samples exhibited intragranular pore volumes of similar to 1% of the solid volume and intragranular surface areas of similar to 20%-35% of the total surface area. Analogous experiments using bromide ion as a tracer yielded very different results, suggesting very little penetration of bromide into the intragranular porosity.
C1 [Hay, Michael B.; Stoliker, Deborah L.; Davis, James A.] US Geol Survey, Div Water Resources, Menlo Pk, CA 94025 USA.
[Davis, James A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Zachara, John M.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Hay, MB (reprint author), US Geol Survey, Div Water Resources, 345 Middlefield Rd,Mail Stop 496, Menlo Pk, CA 94025 USA.
EM mbhay@usgs.gov
RI Davis, James/G-2788-2015
FU USGS; U.S. Department of Energy, Office of Biological and Environmental
Research (BER) through Hanford Science Focus Area (SFA); Hanford
Integrated Field Research Challenge (IFRC)
FX We thank Li Yang for assistance in N2 gas adsorption
analyses, as well as Douglas Kent, John Nimmo, William Ball, and two
anonymous reviewers for helpful comments on the manuscript. This
research was supported by the USGS Hydrologic Research and Development
Program and by the U.S. Department of Energy, Office of Biological and
Environmental Research (BER) Subsurface Biogeochemistry Research (SBR)
Program through the Hanford Science Focus Area (SFA) and the Hanford
Integrated Field Research Challenge (IFRC).
NR 62
TC 15
Z9 15
U1 4
U2 32
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0043-1397
J9 WATER RESOUR RES
JI Water Resour. Res.
PD OCT 29
PY 2011
VL 47
AR W10531
DI 10.1029/2010WR010303
PG 19
WC Environmental Sciences; Limnology; Water Resources
SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Water
Resources
GA 839CA
UT WOS:000296341000001
ER
PT J
AU Vivoni, ER
Mascaro, G
Mniszewski, S
Fasel, P
Springer, EP
Ivanov, VY
Bras, RL
AF Vivoni, Enrique R.
Mascaro, Giuseppe
Mniszewski, Susan
Fasel, Patricia
Springer, Everett P.
Ivanov, Valeriy Y.
Bras, Rafael L.
TI Real-world hydrologic assessment of a fully-distributed hydrological
model in a parallel computing environment
SO JOURNAL OF HYDROLOGY
LA English
DT Article
DE Watershed model; Rainfall-runoff processes; Sub-basin partitioning;
Ensemble forecasting; Parallel computing
ID TRIANGULATED IRREGULAR NETWORKS; INTERCOMPARISON PROJECT DMIP;
SCALE-DEPENDENCE; RESOLUTION; SURFACE; GENERATION; BASIN; FRAMEWORK;
FLOW
AB A major challenge in the use of fully-distributed hydrologic models has been the lack of computational capabilities for high-resolution, long-term simulations in large river basins. In this study, we present the parallel model implementation and real-world hydrologic assessment of the Triangulated Irregular Network (TIN)-based Real-time Integrated Basin Simulator (tRIBS). Our parallelization approach is based on the decomposition of a complex watershed using the channel network as a directed graph. The resulting sub-basin partitioning divides effort among processors and handles hydrologic exchanges across boundaries. Through numerical experiments in a set of nested basins, we quantify parallel performance relative to serial runs for a range of processors, simulation complexities and lengths, and sub-basin partitioning methods, while accounting for inter-run variability on a parallel computing system. In contrast to serial simulations, the parallel model speed-up depends on the variability of hydrologic processes. Load balancing significantly improves parallel speed-up with proportionally faster runs as simulation complexity (domain resolution and channel network extent) increases. The best strategy for large river basins is to combine a balanced partitioning with an extended channel network, with potential savings through a lower TIN resolution. Based on these advances, a wider range of applications for fully-distributed hydrologic models are now possible. This is illustrated through a set of ensemble forecasts that account for precipitation uncertainty derived from a statistical downscaling model. (C) 2011 Elsevier B.V. All rights reserved.
C1 [Vivoni, Enrique R.] Arizona State Univ, Bateman Phys Sci Ctr, Sch Earth & Space Explorat, Tempe, AZ 85287 USA.
[Vivoni, Enrique R.] Arizona State Univ, Sch Sustainable Engn & Built Environm, Tempe, AZ 85287 USA.
[Mascaro, Giuseppe] Univ Cagliari, Dipartimento Ingn Terr, I-09123 Cagliari, Italy.
[Mniszewski, Susan; Fasel, Patricia; Springer, Everett P.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Ivanov, Valeriy Y.] Univ Michigan, Dept Civil & Environm Engn, Ann Arbor, MI 48109 USA.
[Bras, Rafael L.] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA.
RP Vivoni, ER (reprint author), Arizona State Univ, Bateman Phys Sci Ctr, Sch Earth & Space Explorat, F Wing,650-A, Tempe, AZ 85287 USA.
EM vivoni@asu.edu
RI Vivoni, Enrique/E-1202-2012; Springer, Everett/B-6376-2012; Ivanov,
Valeriy/B-4510-2013; Mascaro, Giuseppe/K-5504-2013;
OI Vivoni, Enrique/0000-0002-2659-9459; Springer,
Everett/0000-0002-9816-8148; Mascaro, Giuseppe/0000-0003-4516-1206;
Mniszewski, Susan/0000-0002-0077-0537
FU NSF Science and Technology Center for Sustainability of semi-Arid
Hydrology and Riparian Areas (SAHRA); Los Alamos National Laboratory
(LANL)
FX We acknowledge financial support from the NSF Science and Technology
Center for Sustainability of semi-Arid Hydrology and Riparian Areas
(SAHRA). The Los Alamos National Laboratory (LANL) Directed Research and
Development and Computing Programs also supported this effort. We also
thank the ASU Ira A. Fulton Schools of Engineering High Performance
Computing Initiative for the use of Saguaro for the final production
runs. The comments from several anonymous reviewers also helped improve
the quality of the manuscript.
NR 49
TC 34
Z9 38
U1 2
U2 34
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-1694
J9 J HYDROL
JI J. Hydrol.
PD OCT 28
PY 2011
VL 409
IS 1-2
BP 483
EP 496
DI 10.1016/j.jhydrol.2011.08.053
PG 14
WC Engineering, Civil; Geosciences, Multidisciplinary; Water Resources
SC Engineering; Geology; Water Resources
GA 842LT
UT WOS:000296601600041
ER
PT J
AU Dunlop, MH
Dray, E
Zhao, WX
Tsai, MS
Wiese, C
Schild, D
Sung, P
AF Dunlop, Myun Hwa
Dray, Eloise
Zhao, Weixing
Tsai, Miaw-Sheue
Wiese, Claudia
Schild, David
Sung, Patrick
TI RAD51-associated Protein 1 (RAD51AP1) Interacts with the Meiotic
Recombinase DMC1 through a Conserved Motif
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID HOMOLOGOUS RECOMBINATION; SACCHAROMYCES-CEREVISIAE; BINDING PROTEIN;
RECA PROTEIN; MEIOSIS; DNA; COMPLEXES; MECHANISM; SYNAPSIS; PROMOTES
AB Homologous recombination (HR) reactions mediated by the RAD51 recombinase are essential for DNA and replication fork repair, genome stability, and tumor suppression. RAD51-associated protein 1 (RAD51AP1) is an important HR factor that associates with and stimulates the recombinase activity of RAD51. We have recently shown that RAD51AP1 also partners with the meiotic recombinase DMC1, displaying isoform-specific interactions with DMC1. Here, we have characterized the DMC1 interaction site in RAD51AP1 by a series of truncations and point mutations to uncover a highly conserved WVPP motif critical for DMC1 interaction but dispensable for RAD51 association. This RAD51AP1 motif is reminiscent of the FVPP motif in the tumor suppressor protein BRCA2 that mediates DMC1 interaction. These results further implicate RAD51AP1 in meiotic HR via RAD51 and DMC1.
C1 [Dunlop, Myun Hwa; Dray, Eloise; Zhao, Weixing; Sung, Patrick] Yale Univ, Dept Mol Biophys & Biochem, Sch Med, New Haven, CT 06520 USA.
[Tsai, Miaw-Sheue; Wiese, Claudia; Schild, David] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
RP Sung, P (reprint author), Yale Univ, Dept Mol Biophys & Biochem, Sch Med, 333 Cedar St,SHM C-130, New Haven, CT 06520 USA.
EM patrick.sung@yale.edu
RI Dray, Eloise/E-3938-2012; zhao, weixing/H-3154-2013;
OI Dray, Eloise/0000-0001-6793-9838
FU National Institutes of Health [RO1 ES015252, RO1 ES015632, RO1 ES07061,
PO1 CA092584, PO1 CA129186, R01 CA120315]
FX This work was supported, in whole or in part, by National Institutes of
Health Grants RO1 ES015252, RO1 ES015632, RO1 ES07061, PO1 CA092584, PO1
CA129186, and R01 CA120315.
NR 42
TC 7
Z9 8
U1 0
U2 7
PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA
SN 0021-9258
J9 J BIOL CHEM
JI J. Biol. Chem.
PD OCT 28
PY 2011
VL 286
IS 43
BP 37328
EP 37334
DI 10.1074/jbc.M111.290015
PG 7
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 841VD
UT WOS:000296542400033
PM 21903585
ER
PT J
AU Kalita, MK
Sargsyan, K
Tian, B
Paulucci-Holthauzen, A
Najm, HN
Debusschere, BJ
Brasier, AR
AF Kalita, Mridul K.
Sargsyan, Khachik
Tian, Bing
Paulucci-Holthauzen, Adriana
Najm, Habib N.
Debusschere, Bert J.
Brasier, Allan R.
TI Sources of Cell-to-cell Variability in Canonical Nuclear Factor-kappa B
(NF-kappa B) Signaling Pathway Inferred from Single Cell Dynamic Images
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID GENE-EXPRESSION; EPITHELIAL-CELLS; ACTIVATION; ALPHA; IDENTIFICATION;
OSCILLATIONS; PROTEINS; NETWORK; MODEL; IKK
AB The canonical nuclear factor-kappa B (NF-kappa B) signaling pathway controls a gene network important in the cellular inflammatory response. Upon activation, NF-kappa B/RelA is released from cytoplasmic inhibitors, from where it translocates into the nucleus, subsequently activating negative feedback loops producing either monophasic or damped oscillatory nucleo-cytoplasmic dynamics. Although the population behavior of the NF-kappa B pathway has been extensively modeled, the sources of cell-to-cell variability are not well understood. We describe an integrated experimental-computational analysis of NF-kappa B/RelA translocation in a validated cell model exhibiting monophasic dynamics. Quantitative measures of cellular geometry and total cytoplasmic concentration and translocated RelA amounts were used as priors in Bayesian inference to estimate biophysically realistic parameter values based on dynamic live cell imaging studies of enhanced GFP-tagged RelA in stable transfectants. Bayesian inference was performed on multiple cells simultaneously, assuming identical reaction rate parameters, whereas cellular geometry and initial and total NF-kappa B concentration-related parameters were cell-specific. A subpopulation of cells exhibiting distinct kinetic profiles was identified that corresponded to differences in the I kappa B alpha translation rate. We conclude that cellular geometry, initial and total NF-kappa B concentration, I kappa B alpha translation, and I kappa B alpha degradation rates account for distinct cell-to-cell differences in canonical NF-kappa B translocation dynamics.
C1 [Kalita, Mridul K.; Tian, Bing; Brasier, Allan R.] Univ Texas Med Branch, Dept Med, Galveston, TX 77555 USA.
[Paulucci-Holthauzen, Adriana] Univ Texas Med Branch, Opt Imaging Lab, Galveston, TX 77555 USA.
[Brasier, Allan R.] Univ Texas Med Branch, Sealy Ctr Mol Med, Galveston, TX 77555 USA.
[Sargsyan, Khachik; Najm, Habib N.; Debusschere, Bert J.] Sandia Natl Labs, Livermore, CA 94551 USA.
RP Brasier, AR (reprint author), Univ Texas Med Branch, Dept Med, MRB 8-138,301 Univ Blvd, Galveston, TX 77555 USA.
EM arbrasie@utmb.edu
FU National Institutes of Health (NIH) [AI062885]; NIH, NHLBI
[BAA-HL-02-04]; NIH [RO1 GM086885]; University of Texas-Sandia National
Laboratories; Sandia Laboratory; United States Department of Energy
Office of Science through Office of Advanced Scientific Computing
Research [07-012783]; Sandia Corp. [DE-AC04-94AL85000]
FX This work was supported, in whole or in part, by National Institutes of
Health (NIH) Grant AI062885 (to A. R. B.), NIH, NHLBI, Contract
BAA-HL-02-04 (to A. R. B.) and NIH Grant RO1 GM086885 (to M. Kimmel,
Rice University). This work was supported in part by a University of
Texas-Sandia National Laboratories joint postdoctoral program (to M. K.
K.).; Supported by the Sandia Laboratory Directed Research and
Development program as well as the United States Department of Energy
Office of Science through the Applied Mathematics program in the Office
of Advanced Scientific Computing Research under Contract 07-012783 with
Sandia National Laboratories. Sandia National Laboratories is a
multiprogram laboratory managed and operated by Sandia Corp., a wholly
owned subsidiary of Lockheed Martin Corporation, for the United States
Department of Energy National Nuclear Security Administration under
Contract DE-AC04-94AL85000.
NR 40
TC 26
Z9 26
U1 0
U2 8
PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA
SN 0021-9258
J9 J BIOL CHEM
JI J. Biol. Chem.
PD OCT 28
PY 2011
VL 286
IS 43
BP 37741
EP 37757
DI 10.1074/jbc.M111.280925
PG 17
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 841VD
UT WOS:000296542400070
PM 21868381
ER
PT J
AU Biller, A
Tamblyn, I
Neaton, JB
Kronik, L
AF Biller, Ariel
Tamblyn, Isaac
Neaton, Jeffrey B.
Kronik, Leeor
TI Electronic level alignment at a metal-molecule interface from a
short-range hybrid functional
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
DE electron correlations; electronic structure; exchange interactions
(electron); gold; graphite; interface states; organic compounds;
photoemission; renormalisation
ID DENSITY FUNCTIONALS; DERIVATIVE DISCONTINUITIES; EXACT EXCHANGE;
BAND-GAPS; ENERGY; APPROXIMATIONS; SPECTROSCOPY; EIGENVALUES;
PARAMETERS; MONOLAYERS
AB Hybrid functionals often exhibit a marked improvement over semi-local functionals in the description of the electronic structure of organic materials. Because short-range hybrid functionals, notably the Heyd-Scuseria-Ernzerhof (HSE) functional, can also describe the electronic structure of metals reasonably well, it is interesting to examine to which extent they can correctly describe the electronic structure at metal-organic interfaces. Here, we address this question by comparing HSE calculations with many-body perturbation theory calculations in the GW approximation, or with experimental photoemission data, for two prototypical systems: benzene on graphite and benzene diamine on gold. For both cases, we find that while HSE yields results that are somewhat closer to experiment than those of semi-local functionals, the HSE prediction is still lacking quantitatively by similar to 1 eV. We show that this quantitative failure arises because HSE does not correctly capture the fundamental gap of the organic or its renormalization by the metal. These discrepancies are traced back to missing long-range exchange and correlation components, an explanation which applies to any conventional or short-range hybrid functional. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3655357]
C1 [Biller, Ariel; Kronik, Leeor] Weizmann Inst Sci, Dept Mat & Interfaces, IL-76100 Rehovot, Israel.
[Tamblyn, Isaac; Neaton, Jeffrey B.] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Biller, A (reprint author), Weizmann Inst Sci, Dept Mat & Interfaces, IL-76100 Rehovot, Israel.
EM jbneaton@lbl.gov; leeor.kronik@weizmann.ac.il
RI Neaton, Jeffrey/F-8578-2015;
OI Neaton, Jeffrey/0000-0001-7585-6135; Tamblyn, Isaac/0000-0002-8146-6667
FU US-Israel Binational Science Foundation; Israel Science Foundation; Lise
Meitner-Minerva Center for Computational Quantum Chemistry; Office of
Science, Office of Basic Energy Sciences, of the U.S. Department of
Energy (DOE) [DEAC02-05CH11231]; NSERC
FX We thank G. Heimel (Humboldt University) for helpful discussions. Work
at the Weizmann Institute was supported by the US-Israel Binational
Science Foundation, the Israel Science Foundation, and the Lise
Meitner-Minerva Center for Computational Quantum Chemistry. Work at the
Molecular Foundry was supported by the Office of Science, Office of
Basic Energy Sciences, of the U.S. Department of Energy (DOE) (Contract
No. DEAC02-05CH11231). Computational work was performed using a NERSC
allocation provided by the Office of Basic Energy Sciences. I. T.
acknowledges financial support from NSERC.
NR 87
TC 37
Z9 37
U1 0
U2 30
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD OCT 28
PY 2011
VL 135
IS 16
AR 164706
DI 10.1063/1.3655357
PG 6
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 841OH
UT WOS:000296521200041
PM 22047262
ER
PT J
AU Hedges, LO
Whitelam, S
AF Hedges, Lester O.
Whitelam, Stephen
TI Limit of validity of Ostwald's rule of stages in a statistical
mechanical model of crystallization
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
DE crystallisation; free energy; self-assembly; statistical analysis
ID CRYSTAL NUCLEATION; DYNAMICS; KINETICS
AB We have only rules of thumb with which to predict how a material will crystallize, chief among which is Ostwald's rule of stages. It states that the first phase to appear upon transformation of a parent phase is the one closest to it in free energy. Although sometimes upheld, the rule is without theoretical foundation and is not universally obeyed, highlighting the need for microscopic understanding of crystallization controls. Here we study in detail the crystallization pathways of a prototypical model of patchy particles. The range of crystallization pathways it exhibits is richer than can be predicted by Ostwald's rule, but a combination of simulation and analytic theory reveals clearly how these pathways are selected by microscopic parameters. Our results suggest strategies for controlling self-assembly pathways in simulation and experiment. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3655358]
C1 [Hedges, Lester O.; Whitelam, Stephen] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Hedges, LO (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM swhitelam@lbl.gov
FU Center for Nanoscale Control of Geologic CO2, a U.S. DOE Energy Frontier
Research Center [DE-AC02-05CH11231]; DOE [DE-AC02-05CH11231]
FX We thank Jim DeYoreo, Tom Haxton, Rob Jack, Daphne Klotsa, and Dina
Mirijanian for comments on the paper, and Daan Frenkel, Phill Geissler,
Lutz Maibaum and Will McKerrow for discussions. L.O.H. was supported by
the Center for Nanoscale Control of Geologic CO2, a U.S. DOE
Energy Frontier Research Center, under Contract No. DE-AC02-05CH11231.
This work was done at the Molecular Foundry, Lawrence Berkeley National
Laboratory, supported under the same DOE contract number. We thank NERSC
for computational resources.
NR 34
TC 24
Z9 24
U1 0
U2 21
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
EI 1089-7690
J9 J CHEM PHYS
JI J. Chem. Phys.
PD OCT 28
PY 2011
VL 135
IS 16
AR 164902
DI 10.1063/1.3655358
PG 7
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 841OH
UT WOS:000296521200043
PM 22047264
ER
PT J
AU Niklasson, AMN
Steneteg, P
Bock, N
AF Niklasson, Anders M. N.
Steneteg, Peter
Bock, Nicolas
TI Extended Lagrangian free energy molecular dynamics
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID ELECTRONIC-STRUCTURE CALCULATIONS; DENSITY-FUNCTIONAL THEORY; AB-INITIO
CALCULATION; EQUILIBRIUM GEOMETRIES; POLYATOMIC-MOLECULES;
FORCE-CONSTANTS; MATRIX; ORBITALS; SYSTEMS; TRAJECTORIES
AB Extended free energy Lagrangians are proposed for first principles molecular dynamics simulations at finite electronic temperatures for plane-wave pseudopotential and local orbital density matrix-based calculations. Thanks to the extended Lagrangian description, the electronic degrees of freedom can be integrated by stable geometric schemes that conserve the free energy. For the local orbital representations both the nuclear and electronic forces have simple and numerically efficient expressions that are well suited for reduced complexity calculations. A rapidly converging recursive Fermi operator expansion method that does not require the calculation of eigenvalues and eigen-functions for the construction of the fractionally occupied density matrix is discussed. An efficient expression for the Pulay force that is valid also for density matrices with fractional occupation occurring at finite electronic temperatures is also demonstrated. (C) 2011 American Institute of Physics. [doi:10.1063/1.3656977]
C1 [Niklasson, Anders M. N.; Bock, Nicolas] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Steneteg, Peter] Linkoping Univ, Dept Phys Chem & Biol IFM, SE-58183 Linkoping, Sweden.
RP Niklasson, AMN (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM amn@lanl.gov
FU US-DoE [DE-AC52-06NA25396]; (U.S.) Department of Energy through the LANL
LDRD/ER; Swedish Foundation for Strategic Research (SSF) via Strategic
Materials Research Center on Materials Science for Nanoscale Surface
Engineering [MS2E]; Gran Gustafsson Foundation for Research in Natural
Sciences and Medicine; T-Division Ten-Bar Java Group
FX The Los Alamos National Laboratory is operated by Los Alamos National
Security, LLC for the NNSA of the US-DoE under Contract No.
DE-AC52-06NA25396. We gratefully acknowledge the support of the (U.S.)
Department of Energy through the LANL LDRD/ER program and the Swedish
Foundation for Strategic Research (SSF) via Strategic Materials Research
Center on Materials Science for Nanoscale Surface Engineering (MS2E),
and The Gran Gustafsson Foundation for Research in Natural Sciences and
Medicine for this work. Discussions with Marc Cawkwell, Erik Holmstrom,
Igor Abrikosov, and Anders Odell as well as support from Travis Peery at
the T-Division Ten-Bar Java Group are gratefully acknowledged.
NR 68
TC 7
Z9 7
U1 1
U2 15
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD OCT 28
PY 2011
VL 135
IS 16
AR 164111
DI 10.1063/1.3656977
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 841OH
UT WOS:000296521200012
PM 22047232
ER
PT J
AU Johs, A
Harwood, IM
Parks, JM
Nauss, RE
Smith, JC
Liang, LY
Miller, SM
AF Johs, Alexander
Harwood, Ian M.
Parks, Jerry M.
Nauss, Rachel E.
Smith, Jeremy C.
Liang, Liyuan
Miller, Susan M.
TI Structural Characterization of Intramolecular Hg (2+) Transfer between
Flexibly Linked Domains of Mercuric Ion Reductase
SO JOURNAL OF MOLECULAR BIOLOGY
LA English
DT Article
DE mercury resistance; metal trafficking; SAXS; SANS; intramolecular metal
ion transfer
ID X-RAY-SCATTERING; SMALL-ANGLE SCATTERING; ACTIVE-SITE; ESCHERICHIA-COLI;
PSEUDOMONAS-AERUGINOSA; TRAFFICKING PROTEINS; TRANSPORTING ATPASES;
NUCLEOTIDE-SEQUENCE; CATALYTIC CORE; FUSION PROTEIN
AB The enzyme mercuric ion reductase MerA is the central component of bacterial mercury resistance encoded by the mer operon. Many MerA proteins possess metallochaperone-like N-terminal domains (NmerA) that can transfer Hg2+ to the catalytic core domain (Core) for reduction to Hg-0. These domains are tethered to the homodimeric Core by similar to 30-residue linkers that are susceptible to proteolysis, the latter of which has prevented characterization of the interactions of NmerA and the Core in the full-length protein. Here, we report purification of homogeneous full-length MerA from the Tn21 mer operon using a fusion protein construct and combine small-angle X-ray scattering and small-angle neutron scattering with molecular dynamics simulation to characterize the structures of full-length wild-type and mutant MerA proteins that mimic the system before and during handoff of Hg2+ from NmerA to the Core. The radii of gyration, distance distribution functions, and Kratky plots derived from the small-angle X-ray scattering data are consistent with full-length MerA adopting elongated conformations as a result of flexibility in the linkers to the NmerA domains. The scattering profiles are best reproduced using an ensemble of linker conformations. This flexible attachment of NmerA may facilitate fast and efficient removal of Hg2+ from diverse protein substrates. Using a specific mutant of MerA allowed the formation of a metal-mediated interaction between NmerA and the Core and the determination of the position and relative orientation of NmerA to the Core during Hg2+ handoff. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Harwood, Ian M.; Miller, Susan M.] Univ Calif San Francisco, Grad Grp Biophys, San Francisco, CA 94158 USA.
[Johs, Alexander; Liang, Liyuan] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Harwood, Ian M.; Nauss, Rachel E.; Miller, Susan M.] Univ Calif San Francisco, Dept Pharmaceut Chem, San Francisco, CA 94158 USA.
[Parks, Jerry M.; Smith, Jeremy C.] Univ Tennessee, Oak Ridge Natl Lab, Ctr Biophys Mol, Oak Ridge, TN 37831 USA.
RP Miller, SM (reprint author), Univ Calif San Francisco, Grad Grp Biophys, 600 16th St, San Francisco, CA 94158 USA.
EM smiller@cgl.ucsf.edu
RI smith, jeremy/B-7287-2012; Johs, Alexander/F-1229-2011; Parks,
Jerry/B-7488-2009; Liang, Liyuan/O-7213-2014
OI smith, jeremy/0000-0002-2978-3227; Johs, Alexander/0000-0003-0098-2254;
Parks, Jerry/0000-0002-3103-9333; Liang, Liyuan/0000-0003-1338-0324
FU Scientific User Facilities Division, Office of Basic Energy Sciences,
U.S. Department of Energy; U.S. Department of Energy
[DE-AC02-05CH11231]; Office of Biological and Environmental Research,
U.S. Department of Energy [DE-SC0004735]; ORNL; DOE [DE-AC05-00OR22725]
FX We thank Wei Yang and Guobin Luo for providing CHARMM force field
parameters for FAD, Jinkui Zhao and Carrie Gao for assistance with the
EQ-SANS instrument at the Spallation Neutron Source at ORNL, and Elaine
Kirschke and Daniel Southworth for assistance with the MALS instrument.
A portion of this research at ORNL's Spallation Neutron Source was
sponsored by the Scientific User Facilities Division, Office of Basic
Energy Sciences, U.S. Department of Energy. The SIBYLS beamline
(BL12.3.1) at the Advanced Light Source of Lawrence Berkeley National
Laboratory is supported by the U.S. Department of Energy under contract
number DE-AC02-05CH11231. This research was supported by the Office of
Biological and Environmental Research, U.S. Department of Energy with
funding to the Mercury Science Focus Area Program at ORNL and to S.M.M.
through grant DE-SC0004735. ORNL is managed by UT-Battelle, LLC, for DOE
under Contract No. DE-AC05-00OR22725.
NR 83
TC 13
Z9 13
U1 1
U2 20
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-2836
J9 J MOL BIOL
JI J. Mol. Biol.
PD OCT 28
PY 2011
VL 413
IS 3
BP 639
EP 656
DI 10.1016/j.jmb.2011.08.042
PG 18
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 847CT
UT WOS:000296950200012
PM 21893070
ER
PT J
AU Fortuna, F
Borodin, VA
Ruault, MO
Oliviero, E
Kirk, MA
AF Fortuna, F.
Borodin, V. A.
Ruault, M-O.
Oliviero, E.
Kirk, M. A.
TI Synergetic effects of dual-beam implantation on the microstructural
development in silicon
SO PHYSICAL REVIEW B
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATION; DEFECT PRODUCTION; ION-BEAM; CASCADES;
SI; IRRADIATION; NUCLEATION; DAMAGE; METALS; INTERSTITIALS
AB We report a synergy effect on the microstructural development of silicon specimens as a result of dual-beam high temperature irradiation/implantation. In situ transmission electron microscopy experiments using two different experimental setups have been used, where the primary 50 keV Co(+) ion implantation beam was supplemented with either a 300 keV electron beam or a 500 keV Si(+) ion beam. In both cases, the secondary beam intensity was such that both beams created comparable overall primary damage. Completely different microstructural response has been found in these two cases. An intensive electron irradiation was found to sharply accelerate the evolution of dislocation structure, only weakly affecting the disilicide kinetics. On the contrary, the Si ion beam weakly affected the kinetics of either dislocation loops or coherent CoSi(2) precipitates, but drastically increased the number density of thermodynamically unstable semicoherent precipitates. Possible microstructural reasons for the observed effects and the implications for both dislocation loop and cobalt disilicide nucleation mechanisms in high-temperature implanted TEM samples are discussed and supported by detailed molecular dynamics calculations of annealing of cascade remnants produced by the energetic silicon recoils.
C1 [Fortuna, F.; Ruault, M-O.; Oliviero, E.] CSNSM, F-91405 Orsay, France.
[Borodin, V. A.] NRC Kurchatov Inst, Moscow 123182, Russia.
[Kirk, M. A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Fortuna, F (reprint author), CSNSM, Batiment 108, F-91405 Orsay, France.
RI Oliviero, Erwan/A-8055-2015
OI Oliviero, Erwan/0000-0002-7828-9137
FU CNRS; Argonne National Laboratory; Russian Basic Research Foundation
[10-08-90041]; CSNSM, France
FX We are grateful to the JANNuS-Orsay team for ion beam supplies. We want
to especially thank P. Baldo at IVEM, without whom no online experiment
would be possible. The work was supported in part by a bilateral
French-US collaboration program between CNRS and Argonne National
Laboratory (2006-2008) and in part by the Grant No. 10-08-90041 from the
Russian Basic Research Foundation. V.A.B. is deeply thankful to CSNSM
for funding his research stays in France.
NR 51
TC 7
Z9 7
U1 2
U2 23
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD OCT 28
PY 2011
VL 84
IS 14
AR 144118
DI 10.1103/PhysRevB.84.144118
PG 16
WC Physics, Condensed Matter
SC Physics
GA 843IH
UT WOS:000296665000002
ER
PT J
AU Arguin, JF
Freytsis, M
Ligeti, Z
AF Arguin, Jean-Francois
Freytsis, Marat
Ligeti, Zoltan
TI Comment on measuring the t(t)over-bar forward-backward asymmetry at
ATLAS and CMS
SO PHYSICAL REVIEW D
LA English
DT Article
AB We suggest a new possibility for ATLAS and CMS to explore the t (t) over bar forward-backward asymmetry measured at the Tevatron, by attempting to reconstruct t (t) over bar events, with one of the tops decaying semileptonically in the central region (vertical bar eta vertical bar < 2.5) and the other decaying hadronically in the forward region (vertical bar eta vertical bar > 2.5). For several models which give comparable Tevatron signals, we study the charge asymmetry at the LHC as a function of cuts on vertical bar eta vertical bar and on the (t) over bar invariant mass, m(t (t) over bar). We show that there is an interesting complementarity between cuts on vertical bar eta vertical bar and m(t (t) over bar) to suppress the dominant and symmetric gg -> t (t) over bar rate, and different combinations of cuts enhance the distinguishing power between models. This complementarity is likely to hold in other new physics scenarios as well, which affect the t (t) over bar cross section, so it motivates extending t (t) over bar reconstruction to higher vertical bar eta vertical bar.
C1 [Arguin, Jean-Francois; Freytsis, Marat; Ligeti, Zoltan] Univ Calif Berkeley, Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Freytsis, Marat] Univ Calif Berkeley, Dept Phys, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA.
RP Arguin, JF (reprint author), Univ Calif Berkeley, Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
FU Office of Science, Office of High Energy Physics of the U.S. Department
of Energy [DE-AC02-05CH11231]
FX We thank Jernej Kamenik, Gilad Perez, and especially Martin Schmaltz for
helpful conversations, and Johan Alwall and Tim Tait for help with
MadGraph. Z. L. thanks the Aspen Center for Physics for hospitality
while parts of this work were completed. This work was supported in part
by the Director, Office of Science, Office of High Energy Physics of the
U.S. Department of Energy under contract DE-AC02-05CH11231.
NR 36
TC 10
Z9 10
U1 0
U2 0
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
EI 1550-2368
J9 PHYS REV D
JI Phys. Rev. D
PD OCT 28
PY 2011
VL 84
IS 7
AR 071504
DI 10.1103/PhysRevD.84.071504
PG 6
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 846HK
UT WOS:000296887600002
ER
PT J
AU Lees, JP
Poireau, V
Tisserand, V
Tico, JG
Grauges, E
Martinelli, M
Milanes, DA
Palano, A
Pappagallo, M
Eigen, G
Stugu, B
Sun, L
Brown, DN
Kerth, LT
Kolomensky, YG
Lynch, G
Koch, H
Schroeder, T
Asgeirsson, DJ
Hearty, C
Mattison, TS
McKenna, JA
Khan, A
Blinov, VE
Buzykaev, AR
Druzhinin, VP
Golubev, VB
Kravchenko, EA
Onuchin, AP
Serednyakov, SI
Skovpen, YI
Solodov, EP
Todyshev, KY
Yushkov, AN
Bondioli, M
Curry, S
Kirkby, D
Lankford, AJ
Mandelkern, M
Stoker, DP
Atmacan, H
Gary, JW
Liu, F
Long, O
Vitug, GM
Campagnari, C
Hong, TM
Kovalskyi, D
Richman, JD
West, CA
Eisner, AM
Kroseberg, J
Lockman, WS
Martinez, AJ
Schalk, T
Schumm, BA
Seiden, A
Cheng, CH
Doll, DA
Echenard, B
Flood, KT
Hitlin, DG
Ongmongkolkul, P
Porter, FC
Rakitin, AY
Andreassen, R
Dubrovin, MS
Meadows, BT
Sokoloff, MD
Bloom, PC
Ford, WT
Gaz, A
Nagel, M
Nauenberg, U
Smith, JG
Wagner, SR
Ayad, R
Toki, WH
Spaan, B
Kobel, MJ
Schubert, KR
Schwierz, R
Bernard, D
Verderi, M
Clark, PJ
Playfer, S
Bettoni, D
Bozzi, C
Calabrese, R
Cibinetto, G
Fioravanti, E
Garzia, I
Luppi, E
Munerato, M
Negrini, M
Piemontese, L
Baldini-Ferroli, R
Calcaterra, A
De Sangro, R
Finocchiaro, G
Nicolaci, M
Patteri, P
Peruzzi, IM
Piccolo, M
Rama, M
Zallo, A
Contri, R
Guido, E
Lo Vetere, M
Monge, MR
Passaggio, S
Patrignani, C
Robutti, E
Bhuyan, B
Prasad, V
Lee, CL
Morii, M
Edwards, AJ
Adametz, A
Marks, J
Uwer, U
Bernlochner, FU
Ebert, M
Lacker, HM
Lueck, T
Dauncey, PD
Tibbetts, M
Behera, PK
Mallik, U
Chen, C
Cochran, J
Crawley, HB
Meyer, WT
Prell, S
Rosenberg, EI
Rubin, AE
Gritsan, AV
Guo, ZJ
Arnaud, N
Davier, M
Grosdidier, G
Le Diberder, F
Lutz, AM
Malaescu, B
Roudeau, P
Schune, MH
Stocchi, A
Wormser, G
Lange, DJ
Wright, DM
Bingham, I
Chavez, CA
Coleman, JP
Fry, JR
Gabathuler, E
Hutchcroft, DE
Payne, DJ
Touramanis, C
Bevan, AJ
Di Lodovico, F
Sacco, R
Sigamani, M
Cowan, G
Paramesvaran, S
Brown, DN
Davis, CL
Denig, AG
Fritsch, M
Gradl, W
Hafner, A
Prencipe, E
Alwyn, KE
Bailey, D
Barlow, RJ
Jackson, G
Lafferty, GD
Cenci, R
Hamilton, B
Jawahery, A
Roberts, DA
Simi, G
Dallapiccola, C
Cowan, R
Dujmic, D
Sciolla, G
Lindemann, D
Patel, PM
Robertson, SH
Schram, M
Biassoni, P
Lazzaro, A
Lombardo, V
Palombo, F
Stracka, S
Cremaldi, L
Godang, R
Kroeger, R
Sonnek, P
Summers, DJ
Nguyen, X
Taras, P
De Nardo, G
Monorchio, D
Onorato, G
Sciacca, C
Raven, G
Snoek, HL
Jessop, CP
Knoepfel, KJ
LoSecco, JM
Wang, WF
Honscheid, K
Kass, R
Brau, J
Frey, R
Sinev, NB
Strom, D
Torrence, E
Feltresi, E
Gagliardi, N
Margoni, M
Morandin, M
Posocco, M
Rotondo, M
Simonetto, F
Stroili, R
Ben-Haim, E
Bomben, M
Bonneaud, GR
Briand, H
Calderini, G
Chauveau, J
Hamon, O
Leruste, P
Marchiori, G
Ocariz, J
Sitt, S
Biasini, M
Manoni, E
Pacetti, S
Rossi, A
Angelini, C
Batignani, G
Bettarini, S
Carpinelli, M
Casarosa, G
Cervelli, A
Forti, F
Giorgi, MA
Lusiani, A
Neri, N
Oberhof, B
Paoloni, E
Perez, A
Rizzo, G
Walsh, JJ
Pegna, DL
Lu, C
Olsen, J
Smith, AJS
Telnov, AV
Anulli, F
Cavoto, G
Faccini, R
Ferrarotto, F
Ferroni, F
Gaspero, M
Gioi, LL
Mazzoni, MA
Piredda, G
Bunger, C
Grunberg, O
Hartmann, T
Leddig, T
Schroder, H
Waldi, R
Adye, T
Olaiya, EO
Wilson, FF
Emery, S
de Monchenault, GH
Vasseur, G
Yeche, C
Aston, D
Bard, DJ
Bartoldus, R
Benitez, JF
Cartaro, C
Convery, MR
Dorfan, J
Dubois-Felsmann, GP
Dunwoodie, W
Field, RC
Sevilla, MF
Fulsom, BG
Gabareen, AM
Graham, MT
Grenier, P
Hast, C
Innes, WR
Kelsey, MH
Kim, H
Kim, P
Kocian, ML
Leith, DWGS
Lewis, P
Li, S
Lindquist, B
Luitz, S
Luth, V
Lynch, HL
MacFarlane, DB
Muller, DR
Neal, H
Nelson, S
Ofte, I
Perl, M
Pulliam, T
Ratcliff, BN
Roodman, A
Salnikov, AA
Santoro, V
Schindler, RH
Snyder, A
Su, D
Sullivan, MK
Va'vra, J
Wagner, AP
Weaver, M
Wisniewski, WJ
Wittgen, M
Wright, DH
Wulsin, HW
Yarritu, AK
Young, CC
Ziegler, V
Park, W
Purohit, MV
White, RM
Wilson, JR
Randle-Conde, A
Sekula, SJ
Bellis, M
Burchat, PR
Miyashita, TS
Petersen, BA
Alam, MS
Ernst, JA
Gorodeisky, R
Guttman, N
Peimer, DR
Soffer, A
Lund, P
Spanier, SM
Eckmann, R
Ritchie, JL
Ruland, AM
Schilling, CJ
Schwitters, RF
Wray, BC
Izen, JM
Lou, XC
Bianchi, F
Gamba, D
Lanceri, L
Vitale, L
Lopez-March, N
Martinez-Vidal, F
Oyanguren, A
Ahmed, H
Albert, J
Banerjee, S
Choi, HHF
King, GJ
Kowalewski, R
Lewczuk, MJ
Lindsay, C
Nugent, IM
Roney, JM
Sobie, RJ
Gershon, TJ
Harrison, PF
Latham, TE
Puccio, EMT
Band, HR
Dasu, S
Pan, Y
Prepost, R
Vuosalo, CO
Wu, SL
AF Lees, J. P.
Poireau, V.
Tisserand, V.
Tico, J. Garra
Grauges, E.
Martinelli, M.
Milanes, D. A.
Palano, A.
Pappagallo, M.
Eigen, G.
Stugu, B.
Sun, L.
Brown, D. N.
Kerth, L. T.
Kolomensky, Yu G.
Lynch, G.
Koch, H.
Schroeder, T.
Asgeirsson, D. J.
Hearty, C.
Mattison, T. S.
McKenna, J. A.
Khan, A.
Blinov, V. E.
Buzykaev, A. R.
Druzhinin, V. P.
Golubev, V. B.
Kravchenko, E. A.
Onuchin, A. P.
Serednyakov, S. I.
Skovpen, Yu I.
Solodov, E. P.
Todyshev, K. Yu
Yushkov, A. N.
Bondioli, M.
Curry, S.
Kirkby, D.
Lankford, A. J.
Mandelkern, M.
Stoker, D. P.
Atmacan, H.
Gary, J. W.
Liu, F.
Long, O.
Vitug, G. M.
Campagnari, C.
Hong, T. M.
Kovalskyi, D.
Richman, J. D.
West, C. A.
Eisner, A. M.
Kroseberg, J.
Lockman, W. S.
Martinez, A. J.
Schalk, T.
Schumm, B. A.
Seiden, A.
Cheng, C. H.
Doll, D. A.
Echenard, B.
Flood, K. T.
Hitlin, D. G.
Ongmongkolkul, P.
Porter, F. C.
Rakitin, A. Y.
Andreassen, R.
Dubrovin, M. S.
Meadows, B. T.
Sokoloff, M. D.
Bloom, P. C.
Ford, W. T.
Gaz, A.
Nagel, M.
Nauenberg, U.
Smith, J. G.
Wagner, S. R.
Ayad, R.
Toki, W. H.
Spaan, B.
Kobel, M. J.
Schubert, K. R.
Schwierz, R.
Bernard, D.
Verderi, M.
Clark, P. J.
Playfer, S.
Bettoni, D.
Bozzi, C.
Calabrese, R.
Cibinetto, G.
Fioravanti, E.
Garzia, I.
Luppi, E.
Munerato, M.
Negrini, M.
Piemontese, L.
Baldini-Ferroli, R.
Calcaterra, A.
De Sangro, R.
Finocchiaro, G.
Nicolaci, M.
Patteri, P.
Peruzzi, I. M.
Piccolo, M.
Rama, M.
Zallo, A.
Contri, R.
Guido, E.
Lo Vetere, M.
Monge, M. R.
Passaggio, S.
Patrignani, C.
Robutti, E.
Bhuyan, B.
Prasad, V.
Lee, C. L.
Morii, M.
Edwards, A. J.
Adametz, A.
Marks, J.
Uwer, U.
Bernlochner, F. U.
Ebert, M.
Lacker, H. M.
Lueck, T.
Dauncey, P. D.
Tibbetts, M.
Behera, P. K.
Mallik, U.
Chen, C.
Cochran, J.
Crawley, H. B.
Meyer, W. T.
Prell, S.
Rosenberg, E. I.
Rubin, A. E.
Gritsan, A. V.
Guo, Z. J.
Arnaud, N.
Davier, M.
Grosdidier, G.
Le Diberder, F.
Lutz, A. M.
Malaescu, B.
Roudeau, P.
Schune, M. H.
Stocchi, A.
Wormser, G.
Lange, D. J.
Wright, D. M.
Bingham, I.
Chavez, C. A.
Coleman, J. P.
Fry, J. R.
Gabathuler, E.
Hutchcroft, D. E.
Payne, D. J.
Touramanis, C.
Bevan, A. J.
Di Lodovico, F.
Sacco, R.
Sigamani, M.
Cowan, G.
Paramesvaran, S.
Brown, D. N.
Davis, C. L.
Denig, A. G.
Fritsch, M.
Gradl, W.
Hafner, A.
Prencipe, E.
Alwyn, K. E.
Bailey, D.
Barlow, R. J.
Jackson, G.
Lafferty, G. D.
Cenci, R.
Hamilton, B.
Jawahery, A.
Roberts, D. A.
Simi, G.
Dallapiccola, C.
Cowan, R.
Dujmic, D.
Sciolla, G.
Lindemann, D.
Patel, P. M.
Robertson, S. H.
Schram, M.
Biassoni, P.
Lazzaro, A.
Lombardo, V.
Palombo, F.
Stracka, S.
Cremaldi, L.
Godang, R.
Kroeger, R.
Sonnek, P.
Summers, D. J.
Nguyen, X.
Taras, P.
De Nardo, G.
Monorchio, D.
Onorato, G.
Sciacca, C.
Raven, G.
Snoek, H. L.
Jessop, C. P.
Knoepfel, K. J.
LoSecco, J. M.
Wang, W. F.
Honscheid, K.
Kass, R.
Brau, J.
Frey, R.
Sinev, N. B.
Strom, D.
Torrence, E.
Feltresi, E.
Gagliardi, N.
Margoni, M.
Morandin, M.
Posocco, M.
Rotondo, M.
Simonetto, F.
Stroili, R.
Ben-Haim, E.
Bomben, M.
Bonneaud, G. R.
Briand, H.
Calderini, G.
Chauveau, J.
Hamon, O.
Leruste, Ph
Marchiori, G.
Ocariz, J.
Sitt, S.
Biasini, M.
Manoni, E.
Pacetti, S.
Rossi, A.
Angelini, C.
Batignani, G.
Bettarini, S.
Carpinelli, M.
Casarosa, G.
Cervelli, A.
Forti, F.
Giorgi, M. A.
Lusiani, A.
Neri, N.
Oberhof, B.
Paoloni, E.
Perez, A.
Rizzo, G.
Walsh, J. J.
Pegna, D. Lopes
Lu, C.
Olsen, J.
Smith, A. J. S.
Telnov, A. V.
Anulli, F.
Cavoto, G.
Faccini, R.
Ferrarotto, F.
Ferroni, F.
Gaspero, M.
Gioi, L. Li
Mazzoni, M. A.
Piredda, G.
Buenger, C.
Gruenberg, O.
Hartmann, T.
Leddig, T.
Schroeder, H.
Waldi, R.
Adye, T.
Olaiya, E. O.
Wilson, F. F.
Emery, S.
de Monchenault, G. Hamel
Vasseur, G.
Yeche, Ch
Aston, D.
Bard, D. J.
Bartoldus, R.
Benitez, J. F.
Cartaro, C.
Convery, M. R.
Dorfan, J.
Dubois-Felsmann, G. P.
Dunwoodie, W.
Field, R. C.
Sevilla, M. Franco
Fulsom, B. G.
Gabareen, A. M.
Graham, M. T.
Grenier, P.
Hast, C.
Innes, W. R.
Kelsey, M. H.
Kim, H.
Kim, P.
Kocian, M. L.
Leith, D. W. G. S.
Lewis, P.
Li, S.
Lindquist, B.
Luitz, S.
Luth, V.
Lynch, H. L.
MacFarlane, D. B.
Muller, D. R.
Neal, H.
Nelson, S.
Ofte, I.
Perl, M.
Pulliam, T.
Ratcliff, B. N.
Roodman, A.
Salnikov, A. A.
Santoro, V.
Schindler, R. H.
Snyder, A.
Su, D.
Sullivan, M. K.
Va'vra, J.
Wagner, A. P.
Weaver, M.
Wisniewski, W. J.
Wittgen, M.
Wright, D. H.
Wulsin, H. W.
Yarritu, A. K.
Young, C. C.
Ziegler, V.
Park, W.
Purohit, M. V.
White, R. M.
Wilson, J. R.
Randle-Conde, A.
Sekula, S. J.
Bellis, M.
Burchat, P. R.
Miyashita, T. S.
Petersen, B. A.
Alam, M. S.
Ernst, J. A.
Gorodeisky, R.
Guttman, N.
Peimer, D. R.
Soffer, A.
Lund, P.
Spanier, S. M.
Eckmann, R.
Ritchie, J. L.
Ruland, A. M.
Schilling, C. J.
Schwitters, R. F.
Wray, B. C.
Izen, J. M.
Lou, X. C.
Bianchi, F.
Gamba, D.
Lanceri, L.
Vitale, L.
Lopez-March, N.
Martinez-Vidal, F.
Oyanguren, A.
Ahmed, H.
Albert, J.
Banerjee, Sw
Choi, H. H. F.
King, G. J.
Kowalewski, R.
Lewczuk, M. J.
Lindsay, C.
Nugent, I. M.
Roney, J. M.
Sobie, R. J.
Gershon, T. J.
Harrison, P. F.
Latham, T. E.
Puccio, E. M. T.
Band, H. R.
Dasu, S.
Pan, Y.
Prepost, R.
Vuosalo, C. O.
Wu, S. L.
CA BaBar Collaboration
TI Searches for rare or forbidden semileptonic charm decays
SO PHYSICAL REVIEW D
LA English
DT Article
ID MESONS; D-S(+); D+
AB We present searches for rare or forbidden charm decays of the form X-c(+) -> h(+/-)l(+/-)l((l)+), where X-c(+) is a charm hadron (D+, D-s(+), or A(c)(+)), h +/- is a pion, kaon, or proton, and l((l)+/-) is an electron or muon. The analysis is based on 384 fb(-1) of e(+)e(-) annihilation data collected at or close to the gamma(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signal is observed for any of the 35 decay modes that are investigated. We establish 90% confidence-level upper limits on the branching fractions between 1 x 10(-6) and 44 x 10(-6) depending on the channel. In most cases, these results represent either the first limits or significant improvements on existing limits for the decay modes studied.
C1 [Lees, J. P.; Poireau, V.; Tisserand, V.] Univ Savoie, CNRS IN2P3, Lab Annecy Le Vieux Phys Particules LAPP, F-74941 Annecy Le Vieux, France.
[Tico, J. Garra; Grauges, E.] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain.
[Martinelli, M.; Milanes, D. A.; Palano, A.; Pappagallo, M.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Martinelli, M.; Palano, A.; Pappagallo, M.] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy.
[Eigen, G.; Stugu, B.; Sun, L.] Univ Bergen, Inst Phys, N-5007 Bergen, Norway.
[Brown, D. N.; Kerth, L. T.; Kolomensky, Yu G.; Lynch, G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Koch, H.; Schroeder, T.] Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
[Asgeirsson, D. J.; Hearty, C.; Mattison, T. S.; McKenna, J. A.] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada.
[Khan, A.] Brunel Univ, Uxbridge UB8 3PH, Middx, England.
[Blinov, V. E.; Buzykaev, A. R.; Druzhinin, V. P.; Golubev, V. B.; Kravchenko, E. A.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu I.; Solodov, E. P.; Todyshev, K. Yu; Yushkov, A. N.] Budker Inst Nucl Phys, Novosibirsk 630090, Russia.
[Bondioli, M.; Curry, S.; Kirkby, D.; Lankford, A. J.; Mandelkern, M.; Stoker, D. P.] Univ Calif Irvine, Irvine, CA 92697 USA.
[Atmacan, H.; Gary, J. W.; Liu, F.; Long, O.; Vitug, G. M.] Univ Calif Riverside, Riverside, CA 92521 USA.
[Campagnari, C.; Hong, T. M.; Kovalskyi, D.; Richman, J. D.; West, C. A.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA.
[Eisner, A. M.; Kroseberg, J.; Lockman, W. S.; Martinez, A. J.; Schalk, T.; Schumm, B. A.; Seiden, A.] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Cheng, C. H.; Doll, D. A.; Echenard, B.; Flood, K. T.; Hitlin, D. G.; Ongmongkolkul, P.; Porter, F. C.; Rakitin, A. Y.] CALTECH, Pasadena, CA 91125 USA.
[Andreassen, R.; Dubrovin, M. S.; Meadows, B. T.; Sokoloff, M. D.] Univ Cincinnati, Cincinnati, OH 45221 USA.
[Bloom, P. C.; Ford, W. T.; Gaz, A.; Nagel, M.; Nauenberg, U.; Smith, J. G.; Wagner, S. R.] Univ Colorado, Boulder, CO 80309 USA.
[Ayad, R.; Toki, W. H.] Colorado State Univ, Ft Collins, CO 80523 USA.
[Spaan, B.] Tech Univ Dortmund, Fak Phys, D-44221 Dortmund, Germany.
[Kobel, M. J.; Schubert, K. R.; Schwierz, R.] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany.
[Bernard, D.; Verderi, M.] Ecole Polytech, Lab Leprince Ringuet, CNRS IN2P3, F-91128 Palaiseau, France.
[Clark, P. J.; Playfer, S.] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Bettoni, D.; Bozzi, C.; Calabrese, R.; Cibinetto, G.; Fioravanti, E.; Garzia, I.; Luppi, E.; Munerato, M.; Negrini, M.; Piemontese, L.] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy.
[Calabrese, R.; Cibinetto, G.; Fioravanti, E.; Garzia, I.; Luppi, E.; Munerato, M.; Negrini, M.] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy.
[Baldini-Ferroli, R.; Calcaterra, A.; De Sangro, R.; Finocchiaro, G.; Nicolaci, M.; Patteri, P.; Peruzzi, I. M.; Piccolo, M.; Rama, M.; Zallo, A.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Contri, R.; Guido, E.; Lo Vetere, M.; Monge, M. R.; Passaggio, S.; Patrignani, C.; Robutti, E.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy.
[Contri, R.; Guido, E.; Lo Vetere, M.; Monge, M. R.; Patrignani, C.] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy.
[Bhuyan, B.; Prasad, V.] Indian Inst Technol Guwahati, Gauhati 781039, Assam, India.
[Lee, C. L.; Morii, M.] Harvard Univ, Cambridge, MA 02138 USA.
[Edwards, A. J.] Harvey Mudd Coll, Claremont, CA 91711 USA.
[Adametz, A.; Marks, J.; Uwer, U.] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany.
[Bernlochner, F. U.; Ebert, M.; Lacker, H. M.; Lueck, T.] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany.
[Dauncey, P. D.; Tibbetts, M.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England.
[Behera, P. K.; Mallik, U.] Univ Iowa, Iowa City, IA 52242 USA.
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[Arnaud, N.; Davier, M.; Grosdidier, G.; Le Diberder, F.; Lutz, A. M.; Malaescu, B.; Roudeau, P.; Schune, M. H.; Stocchi, A.; Wormser, G.] Univ Paris 11, Ctr Sci Orsay, F-91898 Orsay, France.
[Lange, D. J.; Wright, D. M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
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[Bevan, A. J.; Di Lodovico, F.; Sacco, R.; Sigamani, M.] Univ London, London E1 4NS, England.
[Cowan, G.; Paramesvaran, S.] Univ London, Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England.
[Brown, D. N.; Davis, C. L.] Univ Louisville, Louisville, KY 40292 USA.
[Denig, A. G.; Fritsch, M.; Gradl, W.; Hafner, A.; Prencipe, E.] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
[Alwyn, K. E.; Bailey, D.; Barlow, R. J.; Jackson, G.; Lafferty, G. D.] Univ Manchester, Manchester M13 9PL, Lancs, England.
[Cenci, R.; Hamilton, B.; Jawahery, A.; Roberts, D. A.; Simi, G.] Univ Maryland, College Pk, MD 20742 USA.
[Dallapiccola, C.] Univ Massachusetts, Amherst, MA 01003 USA.
[Cowan, R.; Dujmic, D.; Sciolla, G.] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA.
[Lindemann, D.; Patel, P. M.; Robertson, S. H.; Schram, M.] McGill Univ, Montreal, PQ H3A 2T8, Canada.
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[Biassoni, P.; Lazzaro, A.; Palombo, F.; Stracka, S.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy.
[Cremaldi, L.; Godang, R.; Kroeger, R.; Sonnek, P.; Summers, D. J.] Univ Mississippi, University, MS 38677 USA.
[Nguyen, X.; Taras, P.] Univ Montreal, Montreal, PQ H3C 3J7, Canada.
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[De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.] Univ Naples Federico II, Dipartimento Sci Fis, I-80126 Naples, Italy.
[Raven, G.; Snoek, H. L.] Natl Inst Nucl Phys & High Energy Phys, NIKHEF, NL-1009 DB Amsterdam, Netherlands.
[Jessop, C. P.; Knoepfel, K. J.; LoSecco, J. M.; Wang, W. F.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Honscheid, K.; Kass, R.] Ohio State Univ, Columbus, OH 43210 USA.
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[Feltresi, E.; Gagliardi, N.; Margoni, M.; Simonetto, F.; Stroili, R.] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy.
[Ben-Haim, E.; Bomben, M.; Bonneaud, G. R.; Briand, H.; Calderini, G.; Chauveau, J.; Hamon, O.; Leruste, Ph; Marchiori, G.; Ocariz, J.; Sitt, S.] Univ Paris 07, Univ Paris 06, IN2P3 CNRS, Lab Phys Nucl & Hautes Energies, F-75252 Paris, France.
[Biasini, M.; Manoni, E.; Pacetti, S.; Rossi, A.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy.
[Peruzzi, I. M.; Biasini, M.; Manoni, E.; Pacetti, S.; Rossi, A.] Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy.
[Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Lusiani, A.; Neri, N.; Oberhof, B.; Paoloni, E.; Perez, A.; Rizzo, G.; Walsh, J. J.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Neri, N.; Oberhof, B.; Paoloni, E.; Rizzo, G.] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy.
[Lusiani, A.] Scuola Normale Super Pisa, I-56127 Pisa, Italy.
[Pegna, D. Lopes; Lu, C.; Olsen, J.; Smith, A. J. S.; Telnov, A. V.] Princeton Univ, Princeton, NJ 08544 USA.
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[Faccini, R.; Ferroni, F.; Gaspero, M.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[Buenger, C.; Gruenberg, O.; Hartmann, T.; Leddig, T.; Schroeder, H.; Waldi, R.] Univ Rostock, D-18051 Rostock, Germany.
[Adye, T.; Olaiya, E. O.; Wilson, F. F.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Emery, S.; de Monchenault, G. Hamel; Vasseur, G.; Yeche, Ch] CEA, Irfu, SPP, Ctr Saclay, F-91191 Gif Sur Yvette, France.
[Aston, D.; Bard, D. J.; Bartoldus, R.; Benitez, J. F.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Sevilla, M. Franco; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Lewis, P.; Li, S.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.; MacFarlane, D. B.; Muller, D. R.; Neal, H.; Nelson, S.; Ofte, I.; Perl, M.; Pulliam, T.; Ratcliff, B. N.; Roodman, A.; Salnikov, A. A.; Santoro, V.; Schindler, R. H.; Snyder, A.; Su, D.; Sullivan, M. K.; Va'vra, J.; Wagner, A. P.; Weaver, M.; Wisniewski, W. J.; Wittgen, M.; Wright, D. H.; Wulsin, H. W.; Yarritu, A. K.; Young, C. C.; Ziegler, V.] SLAC Natl Accelerator Lab, Stanford, CA 94309 USA.
[Park, W.; Purohit, M. V.; White, R. M.; Wilson, J. R.] Univ S Carolina, Columbia, SC 29208 USA.
[Randle-Conde, A.; Sekula, S. J.] So Methodist Univ, Dallas, TX 75275 USA.
[Bellis, M.; Burchat, P. R.; Miyashita, T. S.; Petersen, B. A.] Stanford Univ, Stanford, CA 94305 USA.
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[Gorodeisky, R.; Guttman, N.; Peimer, D. R.; Soffer, A.] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
[Lund, P.; Spanier, S. M.] Univ Tennessee, Knoxville, TN 37996 USA.
[Eckmann, R.; Ritchie, J. L.; Ruland, A. M.; Schilling, C. J.; Schwitters, R. F.; Wray, B. C.] Univ Texas Austin, Austin, TX 78712 USA.
[Izen, J. M.; Lou, X. C.] Univ Texas Dallas, Richardson, TX 75083 USA.
[Bianchi, F.; Gamba, D.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
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[Lanceri, L.; Vitale, L.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Lanceri, L.; Vitale, L.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Lopez-March, N.; Martinez-Vidal, F.; Oyanguren, A.] Univ Valencia CSIC, IFIC, E-46071 Valencia, Spain.
[Ahmed, H.; Albert, J.; Banerjee, Sw; Choi, H. H. F.; King, G. J.; Kowalewski, R.; Lewczuk, M. J.; Lindsay, C.; Nugent, I. M.; Roney, J. M.; Sobie, R. J.] Univ Victoria, Victoria, BC V8W 3P6, Canada.
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[Band, H. R.; Dasu, S.; Pan, Y.; Prepost, R.; Vuosalo, C. O.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA.
[Godang, R.] Univ S AL, Mobile, AL 36688 USA.
[Carpinelli, M.] Univ Sassari, I-07100 Sassari, Italy.
RP Lees, JP (reprint author), Univ Savoie, CNRS IN2P3, Lab Annecy Le Vieux Phys Particules LAPP, F-74941 Annecy Le Vieux, France.
RI Martinez Vidal, F*/L-7563-2014; Kolomensky, Yury/I-3510-2015; Lo Vetere,
Maurizio/J-5049-2012; Lusiani, Alberto/N-2976-2015; Lusiani,
Alberto/A-3329-2016; Morandin, Mauro/A-3308-2016; Stracka,
Simone/M-3931-2015; Di Lodovico, Francesca/L-9109-2016; Pappagallo,
Marco/R-3305-2016; Calcaterra, Alessandro/P-5260-2015; Frey,
Raymond/E-2830-2016; Oyanguren, Arantza/K-6454-2014; Luppi,
Eleonora/A-4902-2015; White, Ryan/E-2979-2015; Kravchenko,
Evgeniy/F-5457-2015; Calabrese, Roberto/G-4405-2015; Neri,
Nicola/G-3991-2012; Forti, Francesco/H-3035-2011; Rotondo,
Marcello/I-6043-2012; de Sangro, Riccardo/J-2901-2012; Passaggio,
Stefano/B-6843-2013; Negrini, Matteo/C-8906-2014; Patrignani,
Claudia/C-5223-2009; Monge, Maria Roberta/G-9127-2012; Rizzo,
Giuliana/A-8516-2015;
OI Sciacca, Crisostomo/0000-0002-8412-4072; Ebert,
Marcus/0000-0002-3014-1512; Paoloni, Eugenio/0000-0001-5969-8712;
Bettarini, Stefano/0000-0001-7742-2998; Cibinetto,
Gianluigi/0000-0002-3491-6231; Pacetti, Simone/0000-0002-6385-3508;
Martinez Vidal, F*/0000-0001-6841-6035; Kolomensky,
Yury/0000-0001-8496-9975; Lo Vetere, Maurizio/0000-0002-6520-4480;
Lusiani, Alberto/0000-0002-6876-3288; Lusiani,
Alberto/0000-0002-6876-3288; Morandin, Mauro/0000-0003-4708-4240;
Stracka, Simone/0000-0003-0013-4714; Di Lodovico,
Francesca/0000-0003-3952-2175; Pappagallo, Marco/0000-0001-7601-5602;
Calcaterra, Alessandro/0000-0003-2670-4826; Frey,
Raymond/0000-0003-0341-2636; Martinelli, Maurizio/0000-0003-4792-9178;
Lanceri, Livio/0000-0001-8220-3095; Oyanguren,
Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; White,
Ryan/0000-0003-3589-5900; Calabrese, Roberto/0000-0002-1354-5400; Neri,
Nicola/0000-0002-6106-3756; Forti, Francesco/0000-0001-6535-7965;
Rotondo, Marcello/0000-0001-5704-6163; de Sangro,
Riccardo/0000-0002-3808-5455; Negrini, Matteo/0000-0003-0101-6963;
Patrignani, Claudia/0000-0002-5882-1747; Monge, Maria
Roberta/0000-0003-1633-3195; Adye, Tim/0000-0003-0627-5059; Rizzo,
Giuliana/0000-0003-1788-2866; Faccini, Riccardo/0000-0003-2613-5141;
Cavoto, Gianluca/0000-0003-2161-918X; Chen, Chunhui
/0000-0003-1589-9955; Raven, Gerhard/0000-0002-2897-5323; Bellis,
Matthew/0000-0002-6353-6043
FU SLAC; US Department of Energy; Natural Sciences and Engineering Research
Council (Canada); Commissariat a l'Energie Atomique (France); Institut
National de Physique Nucleaire et de Physique des Particules (France);
Bundesministerium fur Bildung und Forschung (Germany); Deutsche
Foschungsgemeinschaft (Germany); Istituto Nazionale di Fisica Nucleare
(Italy); Foundation for Fundamental Research on Matter (The
Netherlands); Research Council of Norway; Ministry of Education and
Science of the Russian Federation; Ministerio de Ciencia e Innovacion
(Spain); Science and Technology Facilities Council (United Kingdom);
European Union; A. P. Sloan Foundation (USA); Binational Science
Foundation (USA-Israel); National Science Foundation
FX We are grateful for the extraordinary contributions of our PEP-II
colleagues in achieving the excellent luminosity and machine conditions
that have made this work possible. The success of this project also
relies critically on the expertise and dedication of the computing
organizations that support BABAR. The collaborating institutions wish to
thank SLAC for its support and the kind hospitality extended to them.
This work is supported by the US Department of Energy and National
Science Foundation, the Natural Sciences and Engineering Research
Council (Canada), the Commissariat a l'Energie Atomique and Institut
National de Physique Nucleaire et de Physique des Particules (France),
the Bundesministerium fur Bildung und Forschung and Deutsche
Foschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica
Nucleare (Italy), the Foundation for Fundamental Research on Matter (The
Netherlands), the Research Council of Norway, the Ministry of Education
and Science of the Russian Federation, Ministerio de Ciencia e
Innovacion (Spain), and the Science and Technology Facilities Council
(United Kingdom). Individuals have received support from the Marie-Curie
IEF program (European Union), the A. P. Sloan Foundation (USA), and the
Binational Science Foundation (USA-Israel).
NR 23
TC 22
Z9 22
U1 1
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD OCT 28
PY 2011
VL 84
IS 7
AR 072006
DI 10.1103/PhysRevD.84.072006
PG 13
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 846HK
UT WOS:000296887600003
ER
PT J
AU Wang, XL
Shen, CP
Yuan, CZ
Wang, P
Adachi, I
Aihara, H
Asner, DM
Aushev, T
Bakich, AM
Barberio, E
Belous, K
Bhuyan, B
Bozek, A
Bracko, M
Browder, TE
Chang, MC
Chen, A
Cheon, BG
Chilikin, K
Cho, IS
Cho, K
Choi, Y
Dalseno, J
Danilov, M
Dolezal, Z
Eidelman, S
Fast, JE
Feindt, M
Gaur, V
Goh, YM
Haba, J
Hayasaka, K
Hayashii, H
Hoshi, Y
Hsiung, YB
Hyun, HJ
Iijima, T
Ishikawa, A
Itoh, R
Iwabuchi, M
Iwasaki, Y
Iwashita, T
Julius, T
Kang, JH
Katayama, N
Kawasaki, T
Kichimi, H
Kim, HJ
Kim, HO
Kim, JB
Kim, JH
Kim, KT
Kim, MJ
Kim, YJ
Kinoshita, K
Ko, BR
Kobayashi, N
Koblitz, S
Krizan, P
Kuzmin, A
Kwon, YJ
Lange, JS
Lee, SH
Li, J
Li, XR
Li, Y
Libby, J
Lim, CL
Liu, C
Liventsev, D
Louvot, R
Matvienko, D
McOnie, S
Miyabayashi, K
Miyata, H
Miyazaki, Y
Mohanty, GB
Mussa, R
Nagasaka, Y
Nakao, M
Nakazawa, H
Natkaniec, Z
Neubauer, S
Nishida, S
Nishimura, K
Nitoh, O
Ogawa, S
Ohshima, T
Okuno, S
Olsen, SL
Onuki, Y
Pakhlov, P
Pakhlova, G
Park, H
Park, HK
Pedlar, TK
Pestotnik, R
Petric, M
Piilonen, LE
Ritter, M
Ryu, S
Sahoo, H
Sakai, Y
Sanuki, T
Schneider, O
Schwanda, C
Senyo, K
Seon, O
Sevior, ME
Shapkin, M
Shibata, TA
Shiu, JG
Shwartz, B
Simon, F
Smerkol, P
Sohn, YS
Solovieva, E
Stanic, S
Staric, M
Sumihama, M
Tatishvili, G
Teramoto, Y
Trabelsi, K
Uchida, M
Uehara, S
Unno, Y
Uno, S
Usov, Y
Varner, G
Wang, CH
Wang, MZ
Watanabe, Y
Won, E
Yabsley, BD
Yamashita, Y
Yamauchi, M
Zhang, ZP
Zhilich, V
AF Wang, X. L.
Shen, C. P.
Yuan, C. Z.
Wang, P.
Adachi, I.
Aihara, H.
Asner, D. M.
Aushev, T.
Bakich, A. M.
Barberio, E.
Belous, K.
Bhuyan, B.
Bozek, A.
Bracko, M.
Browder, T. E.
Chang, M. -C.
Chen, A.
Cheon, B. G.
Chilikin, K.
Cho, I. -S.
Cho, K.
Choi, Y.
Dalseno, J.
Danilov, M.
Dolezal, Z.
Eidelman, S.
Fast, J. E.
Feindt, M.
Gaur, V.
Goh, Y. M.
Haba, J.
Hayasaka, K.
Hayashii, H.
Hoshi, Y.
Hsiung, Y. B.
Hyun, H. J.
Iijima, T.
Ishikawa, A.
Itoh, R.
Iwabuchi, M.
Iwasaki, Y.
Iwashita, T.
Julius, T.
Kang, J. H.
Katayama, N.
Kawasaki, T.
Kichimi, H.
Kim, H. J.
Kim, H. O.
Kim, J. B.
Kim, J. H.
Kim, K. T.
Kim, M. J.
Kim, Y. J.
Kinoshita, K.
Ko, B. R.
Kobayashi, N.
Koblitz, S.
Krizan, P.
Kuzmin, A.
Kwon, Y. -J.
Lange, J. S.
Lee, S. -H.
Li, J.
Li, X. R.
Li, Y.
Libby, J.
Lim, C. -L.
Liu, C.
Liventsev, D.
Louvot, R.
Matvienko, D.
McOnie, S.
Miyabayashi, K.
Miyata, H.
Miyazaki, Y.
Mohanty, G. B.
Mussa, R.
Nagasaka, Y.
Nakao, M.
Nakazawa, H.
Natkaniec, Z.
Neubauer, S.
Nishida, S.
Nishimura, K.
Nitoh, O.
Ogawa, S.
Ohshima, T.
Okuno, S.
Olsen, S. L.
Onuki, Y.
Pakhlov, P.
Pakhlova, G.
Park, H.
Park, H. K.
Pedlar, T. K.
Pestotnik, R.
Petric, M.
Piilonen, L. E.
Ritter, M.
Ryu, S.
Sahoo, H.
Sakai, Y.
Sanuki, T.
Schneider, O.
Schwanda, C.
Senyo, K.
Seon, O.
Sevior, M. E.
Shapkin, M.
Shibata, T. -A.
Shiu, J. -G.
Shwartz, B.
Simon, F.
Smerkol, P.
Sohn, Y. -S.
Solovieva, E.
Stanic, S.
Staric, M.
Sumihama, M.
Tatishvili, G.
Teramoto, Y.
Trabelsi, K.
Uchida, M.
Uehara, S.
Unno, Y.
Uno, S.
Usov, Y.
Varner, G.
Wang, C. H.
Wang, M. -Z.
Watanabe, Y.
Won, E.
Yabsley, B. D.
Yamashita, Y.
Yamauchi, M.
Zhang, Z. P.
Zhilich, V.
CA Belle Collaboration
TI Search for charmonium and charmoniumlike states in gamma(2S) radiative
decays
SO PHYSICAL REVIEW D
LA English
DT Article
ID BELLE; IDENTIFICATION; KEKB
AB Using a sample of 158 x 10(6) gamma (2S) events collected with the Belle detector, charmonium and charmoniumlike states with even charge parity are searched for in gamma (2S) radiative decays. No significant chi(cJ) or eta(c) signal is observed, and the following upper limits at 90% confidence level (C. L.) are obtained: B(gamma(2S)-> gamma chi(c0)) < 1.0 x 10(-4), B(gamma(2S) -> gamma chi(c1)) < 3.6 x 10(-6), B(gamma(2S) -> gamma chi(c2)) < 1.5 x 10(-5), and B(gamma(2S) ->gamma eta(c)) < 2.7 x 10(-5). No significant signal of any charmoniumlike state is observed, and we obtain the limits B(gamma(2S) -> gamma X(3872)) x B(X(3872) -> pi(+)pi(-) J/psi) < 0.8 x 10(-6), B(gamma(2S) -> gamma X(3872)) x B(X(3872) -> pi(+)pi(-)pi(0) J/psi) < 2.4 x 10(-6), B(gamma(2S) -> gamma X(3915)) x B(X(3915) -> omega J/psi) < 2.8 x 10(-6), B(gamma(2S) -> gamma Y(4140)) x B(Y(4140) -> phi J/psi) < 1.2 x 10(-6), and B(gamma(2S) -> gamma X(4350) x B(X(4350) -> phi J/psi)) < 1.3 x 10(-6) at 90% C. L.
C1 [Wang, X. L.; Yuan, C. Z.; Wang, P.] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China.
[Eidelman, S.; Kuzmin, A.; Matvienko, D.; Shwartz, B.; Usov, Y.; Zhilich, V.] Novosibirsk State Univ, Novosibirsk 630090, Russia.
[Eidelman, S.; Kuzmin, A.; Matvienko, D.; Shwartz, B.; Usov, Y.; Zhilich, V.] Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia.
[Dolezal, Z.] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic.
[Kinoshita, K.] Univ Cincinnati, Cincinnati, OH 45221 USA.
[Chang, M. -C.] Fu Jen Catholic Univ, Dept Phys, Taipei, Taiwan.
[Lange, J. S.] Univ Giessen, Giessen, Germany.
[Cheon, B. G.; Goh, Y. M.; Unno, Y.] Hanyang Univ, Seoul 133791, South Korea.
[Sumihama, M.] Gifu Univ, Gifu, Japan.
[Browder, T. E.; Nishimura, K.; Olsen, S. L.; Sahoo, H.; Varner, G.] Univ Hawaii, Honolulu, HI 96822 USA.
[Adachi, I.; Haba, J.; Itoh, R.; Iwasaki, Y.; Katayama, N.; Kichimi, H.; Nakao, M.; Nishida, S.; Sakai, Y.; Trabelsi, K.; Uehara, S.; Uno, S.; Yamauchi, M.] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan.
[Nagasaka, Y.] Hiroshima Inst Technol, Hiroshima, Japan.
[Bhuyan, B.] Indian Inst Technol Guwahati, Gauhati, Assam, India.
[Libby, J.] Indian Inst Technol Madras, Madras, Tamil Nadu, India.
[Schwanda, C.] Inst High Energy Phys, Vienna, Austria.
[Belous, K.; Shapkin, M.] Inst High Energy Phys, Protvino, Russia.
[Mussa, R.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[Aushev, T.; Chilikin, K.; Danilov, M.; Liventsev, D.; Pakhlov, P.; Pakhlova, G.; Solovieva, E.] Inst Theoret & Expt Phys, Moscow, Russia.
[Bracko, M.; Krizan, P.; Pestotnik, R.; Petric, M.; Smerkol, P.; Staric, M.] Jozef Stefan Inst, Ljubljana, Slovenia.
[Okuno, S.; Watanabe, Y.] Kanagawa Univ, Yokohama, Kanagawa, Japan.
[Feindt, M.; Neubauer, S.] Karlsruher Inst Technol, Inst Expt Kernphys, Karlsruhe, Germany.
[Cho, K.; Kim, J. H.; Kim, Y. J.] Korea Inst Sci & Technol Informat, Taejon, South Korea.
[Kim, J. B.; Kim, K. T.; Ko, B. R.; Lee, S. -H.; Won, E.] Korea Univ, Seoul, South Korea.
[Hyun, H. J.; Kim, H. J.; Kim, H. O.; Kim, M. J.; Park, H.; Park, H. K.] Kyungpook Natl Univ, Taegu 702701, South Korea.
[Louvot, R.; Schneider, O.] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland.
[Krizan, P.] Univ Ljubljana, Fac Math & Phys, Ljubljana, Slovenia.
[Pedlar, T. K.] Luther Coll, Decorah, IA 52101 USA.
[Bracko, M.; Dalseno, J.; Simon, F.] Univ Maribor, SLO-2000 Maribor, Slovenia.
[Koblitz, S.; Ritter, M.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Barberio, E.; Julius, T.; Sevior, M. E.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia.
[Shen, C. P.; Hayasaka, K.; Iijima, T.; Miyazaki, Y.; Ohshima, T.; Senyo, K.; Seon, O.] Nagoya Univ, Nagoya, Aichi 4648601, Japan.
[Hayashii, H.; Iwashita, T.; Miyabayashi, K.] Nara Womens Univ, Nara 630, Japan.
[Chen, A.; Nakazawa, H.] Natl Cent Univ, Chungli, Taiwan.
[Wang, C. H.] Natl United Univ, Miaoli, Taiwan.
[Hsiung, Y. B.; Shiu, J. -G.; Wang, M. -Z.] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan.
[Bozek, A.; Natkaniec, Z.] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland.
[Yamashita, Y.] Nippon Dent Univ, Niigata, Japan.
[Kawasaki, T.; Miyata, H.] Niigata Univ, Niigata, Japan.
[Stanic, S.] Univ Nova Gorica, Nova Gorica, Slovenia.
[Teramoto, Y.] Osaka City Univ, Osaka 558, Japan.
[Asner, D. M.; Fast, J. E.; Tatishvili, G.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Kobayashi, N.; Shibata, T. -A.; Sumihama, M.; Uchida, M.] Nucl Phys Res Ctr, Osaka, Japan.
[Liu, C.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Li, J.; Li, X. R.; Olsen, S. L.; Ryu, S.] Seoul Natl Univ, Seoul, South Korea.
[Choi, Y.] Sungkyunkwan Univ, Suwon, South Korea.
[Bakich, A. M.; McOnie, S.; Yabsley, B. D.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia.
[Gaur, V.; Mohanty, G. B.] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India.
[Dalseno, J.; Simon, F.] Tech Univ Munich, D-8046 Garching, Germany.
[Ogawa, S.] Toho Univ, Funabashi, Chiba 274, Japan.
[Hoshi, Y.] Tohoku Gakuin Univ, Tagajo, Miyagi, Japan.
[Ishikawa, A.; Onuki, Y.; Sanuki, T.] Tohoku Univ, Sendai, Miyagi 980, Japan.
[Aihara, H.] Univ Tokyo, Dept Phys, Tokyo 113, Japan.
[Kobayashi, N.; Shibata, T. -A.; Uchida, M.] Tokyo Inst Technol, Tokyo 152, Japan.
[Nitoh, O.] Tokyo Univ Agr & Technol, Tokyo, Japan.
[Li, Y.; Piilonen, L. E.] Virginia Polytech Inst & State Univ, CNP, Blacksburg, VA 24061 USA.
RP Wang, XL (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China.
RI Aihara, Hiroaki/F-3854-2010; Nitoh, Osamu/C-3522-2013; Pakhlov,
Pavel/K-2158-2013; Danilov, Mikhail/C-5380-2014; Chilikin,
Kirill/B-4402-2014; Pakhlova, Galina/C-5378-2014; Solovieva,
Elena/B-2449-2014
OI Aihara, Hiroaki/0000-0002-1907-5964; Pakhlov, Pavel/0000-0001-7426-4824;
Danilov, Mikhail/0000-0001-9227-5164; Chilikin,
Kirill/0000-0001-7620-2053; Pakhlova, Galina/0000-0001-7518-3022;
Solovieva, Elena/0000-0002-5735-4059
FU MEXT (Japan); JSPS (Japan); Nagoya's TLPRC (Japan); ARC (Australia);
DIISR (Australia); NSFC (China); MSMT (Czechia); DST (India); MEST
(Korea); NRF (Korea); NSDC of KISTI (Korea); WCU (Korea); MNiSW
(Poland); MES (Russia); RFAAE (Russia); ARRS (Slovenia); SNSF
(Switzerland); NSC (Taiwan); MOE (Taiwan); DOE (USA)
FX We thank the KEKB group for excellent operation of the accelerator, the
KEK cryogenics group for efficient solenoid operations, and the KEK
computer group and the NII for valuable computing and SINET4 network
support. We acknowledge support from MEXT, JSPS and Nagoya's TLPRC
(Japan); ARC and DIISR (Australia); NSFC (China); MSMT (Czechia); DST
(India); MEST, NRF, NSDC of KISTI, and WCU (Korea); MNiSW (Poland); MES
and RFAAE (Russia); ARRS (Slovenia); SNSF (Switzerland); NSC and MOE
(Taiwan); and DOE (USA).
NR 23
TC 9
Z9 9
U1 0
U2 5
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD OCT 28
PY 2011
VL 84
IS 7
AR 071107
DI 10.1103/PhysRevD.84.071107
PG 7
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 846HK
UT WOS:000296887600001
ER
PT J
AU Harrison, N
AF Harrison, N.
TI Near Doping-Independent Pocket Area from an Antinodal Fermi Surface
Instability in Underdoped High Temperature Superconductors
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID CUPRATE SUPERCONDUCTORS; QUANTUM OSCILLATIONS; PHASE-TRANSITIONS; STRIPE
ORDER; PSEUDOGAP; INSULATOR; STATES; METAL
AB Fermi surface models applied to the underdoped cuprates predict the small pocket area to be strongly dependent on doping whereas quantum oscillations in YBa2Cu3O6+x find precisely the opposite to be true-seemingly at odds with the Luttinger volume. We show that such behavior can be explained by an incommensurate antinodal Fermi surface nesting-type instability-further explaining the doping-dependent superstructures seen in cuprates using scanning tunneling microscopy. We develop a Fermi surface reconstruction scheme involving orthogonal density waves in two dimensions and show that their incommensurate behavior requires momentum-dependent coupling. A cooperative modulation of the charge and bond strength is therefore suggested.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Harrison, N (reprint author), Los Alamos Natl Lab, MS E536, Los Alamos, NM 87545 USA.
OI Harrison, Neil/0000-0001-5456-7756
NR 32
TC 9
Z9 9
U1 1
U2 17
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD OCT 28
PY 2011
VL 107
IS 18
AR 186408
DI 10.1103/PhysRevLett.107.186408
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 847WX
UT WOS:000297004400004
PM 22107657
ER
PT J
AU Guruharsha, KG
Rual, JF
Zhai, B
Mintseris, J
Vaidya, P
Vaidya, N
Beekman, C
Wong, C
Rhee, DY
Cenaj, O
McKillip, E
Shah, S
Stapleton, M
Wan, KH
Yu, C
Parsa, B
Carlson, JW
Chen, X
Kapadia, B
VijayRaghavan, K
Gygi, SP
Celniker, SE
Obar, RA
Artavanis-Tsakonas, S
AF Guruharsha, K. G.
Rual, Jean-Francois
Zhai, Bo
Mintseris, Julian
Vaidya, Pujita
Vaidya, Namita
Beekman, Chapman
Wong, Christina
Rhee, David Y.
Cenaj, Odise
McKillip, Emily
Shah, Saumini
Stapleton, Mark
Wan, Kenneth H.
Yu, Charles
Parsa, Bayan
Carlson, Joseph W.
Chen, Xiao
Kapadia, Bhaveen
VijayRaghavan, K.
Gygi, Steven P.
Celniker, Susan E.
Obar, Robert A.
Artavanis-Tsakonas, Spyros
TI A Protein Complex Network of Drosophila melanogaster
SO CELL
LA English
DT Article
ID SACCHAROMYCES-CEREVISIAE; MASS-SPECTROMETRY; COMPREHENSIVE ANALYSIS;
INTERACTION MAP; YEAST; GENE; RESOURCE; INTERACTOME; EVOLUTION; SUBUNIT
AB Determining the composition of protein complexes is an essential step toward understanding the cell as an integrated system. Using coaffinity purification coupled to mass spectrometry analysis, we examined protein associations involving nearly 5,000 individual, FLAG-HA epitope-tagged Drosophila proteins. Stringent analysis of these data, based on a statistical framework designed to define individual protein-protein interactions, led to the generation of a Drosophila protein interaction map (DPiM) encompassing 556 protein complexes. The high quality of the DPiM and its usefulness as a paradigm for metazoan proteomes are apparent from the recovery of many known complexes, significant enrichment for shared functional attributes, and validation in human cells. The DPiM defines potential novel members for several important protein complexes and assigns functional links to 586 protein-coding genes lacking previous experimental annotation. The DPiM represents, to our knowledge, the largest metazoan protein complex map and provides a valuable resource for analysis of protein complex evolution.
C1 [Guruharsha, K. G.; Rual, Jean-Francois; Zhai, Bo; Mintseris, Julian; Vaidya, Pujita; Vaidya, Namita; Beekman, Chapman; Wong, Christina; Rhee, David Y.; Cenaj, Odise; McKillip, Emily; Shah, Saumini; Gygi, Steven P.; Obar, Robert A.; Artavanis-Tsakonas, Spyros] Harvard Univ, Sch Med, Dept Cell Biol, Boston, MA 02115 USA.
[Wan, Kenneth H.; Yu, Charles; Parsa, Bayan; Carlson, Joseph W.; Chen, Xiao; Kapadia, Bhaveen; Celniker, Susan E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley Drosophila Genome Project, Berkeley, CA 94720 USA.
[VijayRaghavan, K.] Tata Inst Fundamental Res, Natl Ctr Biol Sci, Bangalore 560065, Karnataka, India.
RP Obar, RA (reprint author), Harvard Univ, Sch Med, Dept Cell Biol, Boston, MA 02115 USA.
EM robert_obar@hms.harvard.edu; artavanis@hms.harvard.edu
OI Rual, Jean-Francois/0000-0003-4465-8819
FU National Institutes of Health (NIH) [5RO1HG003616]; Deutsche Jose
Carreras Leukamie-Stiftung e.V.; National Human Genome Research
Institute (NHGRI) [P41HG3487]
FX This work was supported by a grant from the National Institutes of
Health (NIH 5RO1HG003616) to S.A.-T. and a fellowship from the Deutsche
Jose Carreras Leukamie-Stiftung e.V. to J.-F.R. Generation of the clone
set was supported by a grant from the National Human Genome Research
Institute (NHGRI P41HG3487 to S.E.C.). Special thanks to Anne-Claude
Gavin, Bernhard Kuster, and Charlie Cohen, whose help was critical in
the initiation of the project, as well as Gerry Rubin for help
throughout. We thank Norbert Perrimon for S2R+ cells, Lucy and Peter
Cherbas for help in cell culture, William Gelbart and the FlyBase team
for making DPiM data available on FlyBase, and Alexey Veraksa, Ashim
Mukherjee, Kadalmani Krishnan, Mathew Sowa, Dan Finley, Robin Reed,
Angeliki Louvi, and members of the S.A.-T., S.E.C., S.P.G., and K.V.
labs for helpful discussion and comments. We thank members of CCSB,
Vidal and Harper labs, and David Hill and Eric Bennett in particular,
for help with the human ORFeome collection. We also thank Manolis Kellis
and Rogerio Candeias for their help.
NR 65
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U1 5
U2 39
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0092-8674
J9 CELL
JI Cell
PD OCT 28
PY 2011
VL 147
IS 3
BP 690
EP 703
DI 10.1016/j.cell.2011.08.047
PG 14
WC Biochemistry & Molecular Biology; Cell Biology
SC Biochemistry & Molecular Biology; Cell Biology
GA 842EH
UT WOS:000296573700022
PM 22036573
ER
PT J
AU Masters, A
Schwartz, SJ
Henley, EM
Thomsen, MF
Zieger, B
Coates, AJ
Achilleos, N
Mitchell, J
Hansen, KC
Dougherty, MK
AF Masters, A.
Schwartz, S. J.
Henley, E. M.
Thomsen, M. F.
Zieger, B.
Coates, A. J.
Achilleos, N.
Mitchell, J.
Hansen, K. C.
Dougherty, M. K.
TI Electron heating at Saturn's bow shock
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
ID INTERPLANETARY MAGNETIC-FIELD; PARTICLE-ACCELERATION; SUPERNOVA REMNANT;
DYNAMICS; IONS; SPECTROMETER; ORIENTATION; TEMPERATURE; WAVES; FOOT
AB Collisionless shock waves are a widespread phenomenon in both solar system and astrophysical contexts. The nature of energy dissipation at such shocks is of particular interest, especially at high Mach numbers. We use data taken by the Cassini spacecraft to investigate electron heating at Saturn's bow shock, one of the strongest collisionless shocks encountered by spacecraft to date. Measurements of the upstream solar wind ion parameters are scarce due to spacecraft pointing constraints and the absence of an upstream monitor. To address this, we use solar wind speed predictions from the Michigan Solar Wind Model. Since these model predictions are based on near-Earth solar wind measurements, we restrict our analysis to bow shock crossings made by Cassini within +/- 75 days of apparent opposition of Earth and Saturn. An analysis of the resulting set of 94 crossings made in 2005 and 2007 reveals a positive correlation between the electron temperature increase across the shock and the kinetic energy of an incident proton, where electron heating accounts for between similar to 3% and similar to 7% of this incident ram energy. This percentage decreases with increasing Alfven Mach number, a trend that we confirm continues into the hitherto poorly explored high-Mach number regime, up to an Alfven Mach number of similar to 150. This work reveals that further studies of the Saturnian bow shock will bridge the gap between the more modest Mach numbers encountered in near-Earth space and more exotic astrophysical regimes where shock processes play central roles.
C1 [Masters, A.; Coates, A. J.] Univ Coll London, Mullard Space Sci Lab, Dept Space & Climate Phys, Dorking RH5 6NT, Surrey, England.
[Masters, A.; Coates, A. J.; Achilleos, N.] Univ London Birkbeck Coll, Ctr Planetary Sci, London WC1E 6BT, England.
[Schwartz, S. J.; Henley, E. M.; Mitchell, J.; Dougherty, M. K.] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Space & Atmospher Phys Grp, London SW7 2AZ, England.
[Hansen, K. C.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
[Thomsen, M. F.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Zieger, B.] Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria.
[Achilleos, N.] Univ London Imperial Coll Sci Technol & Med, Dept Phys & Astron, Atmospher Phys Lab, London SW7 2AZ, England.
RP Masters, A (reprint author), Univ Coll London, Mullard Space Sci Lab, Dept Space & Climate Phys, Holmbury St Mary, Dorking RH5 6NT, Surrey, England.
EM am2@mssl.ucl.ac.uk
RI Hansen, Kenneth/F-3693-2011; Coates, Andrew/C-2396-2008; Zieger,
Bertalan/H-3616-2014
OI Achilleos, Nicholas/0000-0002-5886-3509; Hansen,
Kenneth/0000-0002-8502-1980; Coates, Andrew/0000-0002-6185-3125;
FU UK STFC
FX We acknowledge the support of the MAG and CAPS data processing and
distribution staff and L.K. Gilbert and G.R. Lewis for ELS data
processing. This work was supported by UK STFC through rolling grants to
MSSL/UCL and Imperial College London.
NR 42
TC 20
Z9 20
U1 2
U2 2
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0148-0227
J9 J GEOPHYS RES-SPACE
JI J. Geophys. Res-Space Phys.
PD OCT 28
PY 2011
VL 116
AR A10107
DI 10.1029/2011JA016941
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 839HI
UT WOS:000296355700002
ER
PT J
AU Nagle, JL
Frawley, AD
Levy, LAL
Wysocki, MG
AF Nagle, J. L.
Frawley, A. D.
Levy, L. A. Linden
Wysocki, M. G.
TI Modeling of J/psi modifications in deuteron-nucleus collisions at high
energies
SO PHYSICAL REVIEW C
LA English
DT Article
ID HEAVY-ION COLLISIONS; DRELL-YAN; SUPPRESSION; DEPENDENCE; ABSORPTION
AB Understanding the detailed production and hadronization mechanisms for heavy quarkonia and their modification in a nuclear environment presents one of the major challenges in QCD. Calculations including nuclear-modified parton distribution functions (nPDFs) and the fitting of breakup cross sections (sigma(br)) as parameters have been successful at describing many features of J/psi modifications in proton (deuteron)-nucleus collisions. In this paper, we extend these calculations to explore different geometric dependencies of the modifications and confront them with new experimental results from the PHENIX experiment. We find that no combination of nPDFs and sigma(br), regardless of the nPDF parameter set and the assumed geometric dependence, can simultaneously describe the entire rapidity and centrality dependence of J/psi modifications in d + Au collisions at root S(NN) = 200 GeV. We extend these calculations to incorporate initial-state parton energy loss, which results in an improved description of the experimental data. Finally, we compare the data with previously published calculations, including coherence effects, and find them unable to describe the full rapidity and centrality dependence.
C1 [Nagle, J. L.; Wysocki, M. G.] Univ Colorado, Boulder, CO 80309 USA.
[Frawley, A. D.] Florida State Univ, Tallahassee, FL 32306 USA.
[Levy, L. A. Linden] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Nagle, JL (reprint author), Univ Colorado, Boulder, CO 80309 USA.
EM jamie.nagle@colorado.edu; afrawley@fsu.edu; lindenle@llnl.gov;
matthew.wysocki@colorado.edu
FU Division of Nuclear Physics of the US Department of Energy
[DE-FG02-00ER41152]; US Department of Energy by Lawrence Livermore
National Laboratory [DE-AC52-07NA27344]; National Science Foundation
[PHY-07-56474]; Institute for Nuclear Theory at the University of
Washington; US Department of Energy
FX We thank Kirill Tuchin for providing us with the color-glass condensate
calculation results and useful discussions, and Michael Stone for
generating the PYTHIA event samples. We also acknowledge useful
discussions with Mike Leitch, Darren McGlinchy, and Ramona Vogt. J.L.N
and M. G. W acknowledge funding from the Division of Nuclear Physics of
the US Department of Energy under Grant No. DE-FG02-00ER41152. L. A. L.
L acknowledges that this work was performed under the auspices of the US
Department of Energy by Lawrence Livermore National Laboratory under
Contract No. DE-AC52-07NA27344. A. D. F acknowledges funding from the
National Science Foundation under Contract No. PHY-07-56474. We also
thank the Institute for Nuclear Theory at the University of Washington
for its hospitality and the US Department of Energy for partial support
during some of this work.
NR 33
TC 10
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U1 0
U2 1
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD OCT 28
PY 2011
VL 84
IS 4
AR 044911
DI 10.1103/PhysRevC.84.044911
PG 11
WC Physics, Nuclear
SC Physics
GA 841OE
UT WOS:000296520900003
ER
PT J
AU Han, TYJ
Stadermann, M
Baumann, TF
Murphy, KE
Satcher, JH
AF Han, T. Yong-Jin
Stadermann, Michael
Baumann, Theodore F.
Murphy, Kristen E.
Satcher, Joe H., Jr.
TI Template directed formation of nanoparticle decorated multi-walled
carbon nanotube bundles with uniform diameter
SO NANOTECHNOLOGY
LA English
DT Article
ID MESOPOROUS SILICA; HYDROGEN STORAGE; METAL; ARRAYS; ADSORPTION;
COPOLYMER
AB Bundles of multi-walled carbon nanotubes of uniform diameter decorated with Ni nanoparticles were synthesized using mesoporous silicates as templates. The ordered morphology and the narrow pore size distribution of mesoporous silicates provide an ideal platform to synthesize uniformly sized carbon nanotubes. In addition, homogeneous sub-10 nm pore sizes of the templates allow in situ formation of catalytic nanoparticles with uniform diameters which end up decorating the carbon nanotubes. The resulting carbon nanotubes are multi-walled with a uniform diameter corresponding to the pore diameter of the template used during the synthesis that are decorated with the catalysts used to synthesize them. They have a narrow size distribution which can be used in many energy related fields of research.
C1 [Han, T. Yong-Jin; Stadermann, Michael; Baumann, Theodore F.; Murphy, Kristen E.; Satcher, Joe H., Jr.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
RP Han, TYJ (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, 7000 East Ave, Livermore, CA 94550 USA.
EM han5@llnl.gov
RI Stadermann, Michael /A-5936-2012
OI Stadermann, Michael /0000-0001-8920-3581
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; LLNL [09-LW-024]
FX This work was performed under the auspices of the US Department of
Energy by Lawrence Livermore National Laboratory under contract
DE-AC52-07NA27344. The project 09-LW-024 was funded by the Laboratory
Directed Research and Development Program at LLNL.
NR 26
TC 2
Z9 2
U1 3
U2 11
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0957-4484
J9 NANOTECHNOLOGY
JI Nanotechnology
PD OCT 28
PY 2011
VL 22
IS 43
AR 435603
DI 10.1088/0957-4484/22/43/435603
PG 6
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 834NW
UT WOS:000295969600013
PM 21967786
ER
PT J
AU Pindzola, MS
Lee, TG
Colgan, J
AF Pindzola, M. S.
Lee, T. G.
Colgan, J.
TI Antiproton-impact ionization of H, He and Li
SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
LA English
DT Article
ID DYNAMIC CORRELATION; ATOMIC-HYDROGEN; COLLISIONS; HELIUM
AB Time-dependent close-coupling methods based on the expansion of one-and two-active-electron wavefunctions in spherical harmonics are used to calculate antiproton-impact single-ionization cross sections for H, He and Li. The single active electron cross sections are found to be in fair agreement with previous calculations and experiment for H and in good agreement with previous calculations for Li. However, the single active electron cross sections for He are found to be considerably larger than current and the previous two active electron cross sections, other calculations and experiment. It appears that electron correlation effects play a significant role in antiproton-impact ionization of He.
C1 [Pindzola, M. S.; Lee, T. G.] Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
[Colgan, J.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA.
RP Pindzola, MS (reprint author), Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
RI Lee, Teck Ghee/D-5037-2012;
OI Lee, Teck Ghee/0000-0001-9472-3194; Colgan, James/0000-0003-1045-3858
FU US Department of Energy; US National Science Foundation
FX This work was supported in part by grants from the US Department of
Energy and the US National Science Foundation. Computational production
work was carried out at the National Energy Research Scientific
Computing Center in Oakland, CA, and the National Institute for
Computational Sciences in Knoxville, TN.
NR 23
TC 10
Z9 10
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-4075
J9 J PHYS B-AT MOL OPT
JI J. Phys. B-At. Mol. Opt. Phys.
PD OCT 28
PY 2011
VL 44
IS 20
AR 205204
DI 10.1088/0953-4075/44/20/205204
PG 5
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 829QQ
UT WOS:000295599500014
ER
PT J
AU Slaughter, DS
Adaniya, H
Rescigno, TN
Haxton, DJ
Orel, AE
McCurdy, CW
Belkacem, A
AF Slaughter, D. S.
Adaniya, H.
Rescigno, T. N.
Haxton, D. J.
Orel, A. E.
McCurdy, C. W.
Belkacem, A.
TI Dissociative electron attachment to carbon dioxide via the 8.2 eV
Feshbach resonance
SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
LA English
DT Article
ID CROSS SECTIONS; CO2; IONS; AFFINITY; STATES; COLLISION; IMPACT
AB Momentum imaging experiments on dissociative electron attachment (DEA) to CO2 are combined with the results of ab initio calculations to provide a detailed and consistent picture of the dissociation dynamics through the 8.2 eV resonance, which is the major channel for DEA in CO2. The present study resolves several puzzling misconceptions about this system.
C1 [Slaughter, D. S.; Adaniya, H.; Rescigno, T. N.; Haxton, D. J.; Belkacem, A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Orel, A. E.] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
[McCurdy, C. W.] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA.
RP Slaughter, DS (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
OI Slaughter, Daniel/0000-0002-4621-4552
FU US DOE by LBNL [DE-AC02-05CH11231]; US DOE Office of Basic Energy
Sciences, Division of Chemical Sciences
FX This work was performed under the auspices of the US DOE by LBNL under
contract DE-AC02-05CH11231 and was supported by the US DOE Office of
Basic Energy Sciences, Division of Chemical Sciences.
NR 25
TC 12
Z9 12
U1 0
U2 11
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-4075
J9 J PHYS B-AT MOL OPT
JI J. Phys. B-At. Mol. Opt. Phys.
PD OCT 28
PY 2011
VL 44
IS 20
AR 205203
DI 10.1088/0953-4075/44/20/205203
PG 5
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 829QQ
UT WOS:000295599500013
ER
PT J
AU Kohler, S
Bauer, S
Mungall, CJ
Carletti, G
Smith, CL
Schofield, P
Gkoutos, GV
Robinson, PN
AF Koehler, Sebastian
Bauer, Sebastian
Mungall, Chris J.
Carletti, Gabriele
Smith, Cynthia L.
Schofield, Paul
Gkoutos, Georgios V.
Robinson, Peter N.
TI Improving ontologies by automatic reasoning and evaluation of logical
definitions
SO BMC BIOINFORMATICS
LA English
DT Article
ID HUMAN PHENOTYPE ONTOLOGY; INFORMATION; DATABASE; SUPPORT; MODEL; TOOL
AB Background: Ontologies are widely used to represent knowledge in biomedicine. Systematic approaches for detecting errors and disagreements are needed for large ontologies with hundreds or thousands of terms and semantic relationships. A recent approach of defining terms using logical definitions is now increasingly being adopted as a method for quality control as well as for facilitating interoperability and data integration.
Results: We show how automated reasoning over logical definitions of ontology terms can be used to improve ontology structure. We provide the Java software package GULO ( Getting an Understanding of LOgical definitions), which allows fast and easy evaluation for any kind of logically decomposed ontology by generating a composite OWL ontology from appropriate subsets of the referenced ontologies and comparing the inferred relationships with the relationships asserted in the target ontology. As a case study we show how to use GULO to evaluate the logical definitions that have been developed for the Mammalian Phenotype Ontology ( MPO).
Conclusions: Logical definitions of terms from biomedical ontologies represent an important resource for error and disagreement detection. GULO gives ontology curators a fast and simple tool for validation of their work.
C1 [Koehler, Sebastian; Bauer, Sebastian; Robinson, Peter N.] Charite, Inst Med Genet & Human Genet, D-13353 Berlin, Germany.
[Koehler, Sebastian; Robinson, Peter N.] Charite, Berlin Brandenburg Ctr Regenerat Therapies BCRT, D-13353 Berlin, Germany.
[Mungall, Chris J.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Carletti, Gabriele] Univ Camerino, Dipartimento Matemat & Informat, I-62032 Camerino, MC, Italy.
[Smith, Cynthia L.; Schofield, Paul] Jackson Lab, Bar Harbor, ME 04609 USA.
[Schofield, Paul] Univ Cambridge, Dept Physiol Dev & Neurosci, Cambridge CB2 3EG, England.
[Gkoutos, Georgios V.] Univ Cambridge, Dept Genet, Cambridge CB2 3EH, England.
[Robinson, Peter N.] Max Planck Inst Mol Genet, D-14195 Berlin, Germany.
RP Kohler, S (reprint author), Charite, Inst Med Genet & Human Genet, Augustenburger Pl 1, D-13353 Berlin, Germany.
EM sebastian.koehler@charite.de; peter.robinson@charite.de
RI Kohler, Sebastian/A-2029-2012; Smith, Cynthia/A-5646-2009;
OI Kohler, Sebastian/0000-0002-5316-1399; Smith,
Cynthia/0000-0003-3691-0324; Robinson, Peter/0000-0002-0736-9199
FU Deutsche Forschungsgemeinschaft (DFG) [RO 2005/4-1]; Bundesministerium
fur Bildung und Forschung (BMBF) [0313911]; NIH [R01 HG004838-02]
FX This work was supported by grants of the Deutsche Forschungsgemeinschaft
(DFG RO 2005/4-1), the Bundesministerium fur Bildung und Forschung (BMBF
project number 0313911), and the NIH (R01 HG004838-02).
NR 30
TC 17
Z9 17
U1 0
U2 5
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-2105
J9 BMC BIOINFORMATICS
JI BMC Bioinformatics
PD OCT 27
PY 2011
VL 12
AR 418
DI 10.1186/1471-2105-12-418
PG 8
WC Biochemical Research Methods; Biotechnology & Applied Microbiology;
Mathematical & Computational Biology
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Mathematical & Computational Biology
GA 852JE
UT WOS:000297353000001
PM 22032770
ER
PT J
AU Aaltonen, T
Gonzalez, BA
Amerio, S
Amidei, D
Anastassov, A
Annovi, A
Antos, J
Apollinari, G
Appel, JA
Arisawa, T
Artikov, A
Asaadi, J
Ashmanskas, W
Auerbach, B
Aurisano, A
Azfar, F
Badgett, W
Bae, T
Barbaro-Galtieri, A
Barnes, VE
Barnett, BA
Barria, P
Bartos, P
Bauce, M
Bedeschi, F
Beecher, D
Behari, S
Bellettini, G
Bellinger, J
Benjamin, D
Beretvas, A
Bhatti, A
Binkley, M
Bisello, D
Bizjak, I
Bland, KR
Blumenfeld, B
Bocci, A
Bodek, A
Bortoletto, D
Boudreau, J
Boveia, A
Brigliadori, L
Bromberg, C
Brucken, E
Budagov, J
Budd, HS
Burkett, K
Busetto, G
Bussey, P
Buzatu, A
Calamba, A
Calancha, C
Camarda, S
Campanelli, M
Campbell, M
Canelli, F
Carls, B
Carlsmith, D
Carosi, R
Carrillo, S
Carron, S
Casal, B
Casarsa, M
Castro, A
Catastini, P
Cauz, D
Cavaliere, V
Cavalli-Sforza, M
Cerri, A
Cerrito, L
Chen, YC
Chertok, M
Chiarelli, G
Chlachidze, G
Chlebana, F
Cho, K
Chokheli, D
Chung, WH
Chung, YS
Ciocci, MA
Clark, A
Clark, C
Compostella, G
Convery, ME
Conway, J
Corbo, M
Cordelli, M
Cox, CA
Cox, DJ
Crescioli, F
Cuevas, J
Culbertson, R
Dagenhart, D
d'Ascenzo, N
Datta, M
de Barbaro, P
Dell'Orso, M
Demortier, L
Deninno, M
Devoto, F
d'Errico, M
Di Canto, A
Di Ruzza, B
Dittmann, JR
D'Onofrio, M
Donati, S
Dong, P
Dorigo, M
Dorigo, T
Ebina, K
Elagin, A
Eppig, A
Erbacher, R
Errede, S
Ershaidat, N
Eusebi, R
Fang, HC
Farrington, S
Feindt, M
Fernandez, JP
Field, R
Flanagan, G
Forrest, R
Frank, MJ
Franklin, M
Freeman, JC
Funakoshi, Y
Furic, I
Gallinaro, M
Garcia, JE
Garfinkel, AF
Garosi, P
Gerberich, H
Gerchtein, E
Giakoumopoulou, V
Giannetti, P
Gibson, K
Ginsburg, CM
Giokaris, N
Giromini, P
Giurgiu, G
Glagolev, V
Glenzinski, D
Gold, M
Goldin, D
Goldschmidt, N
Golossanov, A
Gomez, G
Gomez-Ceballos, G
Goncharov, M
Gonzalez, O
Gorelov, I
Goshaw, AT
Goulianos, K
Grinstein, S
Grosso-Pilcher, C
Group, RC
da Costa, JG
Gunay-Unalan, Z
Haber, C
Hahn, SR
Halkiadakis, E
Hamaguchi, A
Han, JY
Happacher, F
Hara, K
Hare, D
Hare, M
Harr, RF
Hatakeyama, K
Hays, C
Heck, M
Heinrich, J
Herndon, M
Hewamanage, S
Hocker, A
Hopkins, W
Horn, D
Hou, S
Hughes, RE
Hurwitz, M
Husemann, U
Hussain, N
Hussein, M
Huston, J
Introzzi, G
Iori, M
Ivanov, A
James, E
Jang, D
Jang, HJ
Jayatilaka, B
Jeon, EJ
Jindariani, S
Johnson, W
Jones, M
Joo, KK
Jun, SY
Junk, TR
Kamon, T
Karchin, PE
Kasmi, A
Kato, Y
Ketchum, W
Keung, J
Khotilovich, V
Kilminster, B
Kim, DH
Kim, HS
Kim, JE
Kim, MJ
Kim, SB
Kim, SH
Kim, YK
Kim, YJ
Kimura, N
Kirby, M
Knoepfel, K
Kondo, K
Kong, DJ
Konigsberg, J
Kotwal, AV
Kreps, M
Kroll, J
Krop, D
Kruse, M
Krutelyov, V
Kuhr, T
Kurata, M
Kwang, S
Laasanen, AT
Lami, S
Lammel, S
Lancaster, M
Lander, RL
Lannon, K
Lath, A
Latino, G
LeCompte, T
Lee, E
Lee, HS
Lee, JS
Lee, SW
Leo, S
Leone, S
Lewis, JD
Limosani, A
Lin, CJ
Linacre, J
Lindgren, M
Lipeles, E
Lister, A
Litvintsev, DO
Liu, C
Liu, H
Liu, Q
Liu, T
Lockwitz, S
Loginov, A
Lucchesi, D
Lueck, J
Lujan, P
Lukens, P
Lungu, G
Lys, J
Lysak, R
Madrak, R
Maeshima, K
Maestro, P
Malik, S
Manca, G
Manousakis-Katsikakis, A
Margaroli, F
Marino, C
Martinez, M
Matera, K
Mattson, ME
Mazzacane, A
Mazzanti, P
McFarland, KS
McIntyre, P
McNulty, R
Mehta, A
Mehtala, P
Mesropian, C
Miao, T
Mietlicki, D
Mitra, A
Miyake, H
Moed, S
Moggi, N
Mondragon, MN
Moon, CS
Moore, R
Morello, MJ
Morlock, J
Fernandez, PM
Mukherjee, A
Muller, T
Murat, P
Mussini, M
Nachtman, J
Nagai, Y
Naganoma, J
Nakano, I
Napier, A
Nett, J
Neu, C
Neubauer, MS
Nielsen, J
Nodulman, L
Noh, SY
Norniella, O
Nurse, E
Oakes, L
Oh, SH
Oh, YD
Oksuzian, I
Okusawa, T
Orava, R
Ortolan, L
Griso, SP
Pagliarone, C
Palencia, E
Papadimitriou, V
Paramonov, AA
Patrick, J
Pauletta, G
Paulini, M
Paus, C
Pellett, DE
Penzo, A
Phillips, TJ
Piacentino, G
Pianori, E
Pilot, J
Pitts, K
Plager, C
Pondrom, L
Poprocki, S
Potamianos, K
Poukhov, O
Prokoshin, F
Pranko, A
Ptohos, F
Punzi, G
Rahaman, A
Ramakrishnan, V
Ranjan, N
Redondo, I
Renton, P
Rescigno, M
Riddick, T
Rimondi, F
Ristori, L
Robson, A
Rodrigo, T
Rodriguez, T
Rogers, E
Rolli, S
Roser, R
Rubbo, F
Ruffini, F
Ruiz, A
Russ, J
Rusu, V
Safonov, A
Sakumoto, WK
Sakurai, Y
Santi, L
Sato, K
Saveliev, V
Savoy-Navarro, A
Schlabach, P
Schmidt, A
Schmidt, EE
Schmidt, MP
Schwarz, T
Scodellaro, L
Scribano, A
Scuri, F
Sedov, A
Seidel, S
Seiya, Y
Semenov, A
Sforza, F
Shalhout, SZ
Shears, T
Shepard, PF
Shimojima, M
Shochet, M
Shreyber-Tecker, I
Simonenko, A
Sinervo, P
Sissakian, A
Sliwa, K
Smith, JR
Snider, FD
Soha, A
Sorin, V
Squillacioti, P
Stancari, M
St Denis, R
Stelzer, B
Stelzer-Chilton, O
Stentz, D
Strologas, J
Strycker, GL
Sudo, Y
Sukhanov, A
Suslov, I
Takemasa, K
Takeuchi, Y
Tang, J
Tecchio, M
Teng, PK
Thom, J
Thome, J
Thompson, GA
Thomson, E
Toback, D
Tokar, S
Tollefson, K
Tomura, T
Tonelli, D
Torre, S
Torretta, D
Totaro, P
Trovato, M
Tu, Y
Ukegawa, F
Uozumi, S
Varganov, A
Vazquez, F
Velev, G
Vellidis, C
Vidal, M
Vila, I
Vilar, R
Vizan, J
Vogel, M
Volpi, G
Wagner, P
Wagner, RL
Wakisaka, T
Wallny, R
Wang, SM
Warburton, A
Waters, D
Wester, WC
Whiteson, D
Wicklund, AB
Wicklund, E
Wilbur, S
Wick, F
Williams, HH
Wilson, JS
Wilson, P
Winer, BL
Wittich, P
Wolbers, S
Wolfe, H
Wright, T
Wu, X
Wu, Z
Yamamoto, K
Yang, T
Yang, UK
Yang, YC
Yao, WM
Yeh, GP
Yi, K
Yoh, J
Yorita, K
Yoshida, T
Yu, GB
Yu, I
Yu, SS
Yun, JC
Zanetti, A
Zeng, Y
Zucchelli, S
AF Aaltonen, T.
Alvarez Gonzalez, B.
Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Apollinari, G.
Appel, J. A.
Arisawa, T.
Artikov, A.
Asaadi, J.
Ashmanskas, W.
Auerbach, B.
Aurisano, A.
Azfar, F.
Badgett, W.
Bae, T.
Barbaro-Galtieri, A.
Barnes, V. E.
Barnett, B. A.
Barria, P.
Bartos, P.
Bauce, M.
Bedeschi, F.
Beecher, D.
Behari, S.
Bellettini, G.
Bellinger, J.
Benjamin, D.
Beretvas, A.
Bhatti, A.
Binkley, M.
Bisello, D.
Bizjak, I.
Bland, K. R.
Blumenfeld, B.
Bocci, A.
Bodek, A.
Bortoletto, D.
Boudreau, J.
Boveia, A.
Brigliadori, L.
Bromberg, C.
Brucken, E.
Budagov, J.
Budd, H. S.
Burkett, K.
Busetto, G.
Bussey, P.
Buzatu, A.
Calamba, A.
Calancha, C.
Camarda, S.
Campanelli, M.
Campbell, M.
Canelli, F.
Carls, B.
Carlsmith, D.
Carosi, R.
Carrillo, S.
Carron, S.
Casal, B.
Casarsa, M.
Castro, A.
Catastini, P.
Cauz, D.
Cavaliere, V.
Cavalli-Sforza, M.
Cerri, A.
Cerrito, L.
Chen, Y. C.
Chertok, M.
Chiarelli, G.
Chlachidze, G.
Chlebana, F.
Cho, K.
Chokheli, D.
Chung, W. H.
Chung, Y. S.
Ciocci, M. A.
Clark, A.
Clark, C.
Compostella, G.
Convery, M. E.
Conway, J.
Corbo, M.
Cordelli, M.
Cox, C. A.
Cox, D. J.
Crescioli, F.
Cuevas, J.
Culbertson, R.
Dagenhart, D.
d'Ascenzo, N.
Datta, M.
de Barbaro, P.
Dell'Orso, M.
Demortier, L.
Deninno, M.
Devoto, F.
d'Errico, M.
Di Canto, A.
Di Ruzza, B.
Dittmann, J. R.
D'Onofrio, M.
Donati, S.
Dong, P.
Dorigo, M.
Dorigo, T.
Ebina, K.
Elagin, A.
Eppig, A.
Erbacher, R.
Errede, S.
Ershaidat, N.
Eusebi, R.
Fang, H. C.
Farrington, S.
Feindt, M.
Fernandez, J. P.
Field, R.
Flanagan, G.
Forrest, R.
Frank, M. J.
Franklin, M.
Freeman, J. C.
Funakoshi, Y.
Furic, I.
Gallinaro, M.
Garcia, J. E.
Garfinkel, A. F.
Garosi, P.
Gerberich, H.
Gerchtein, E.
Giakoumopoulou, V.
Giannetti, P.
Gibson, K.
Ginsburg, C. M.
Giokaris, N.
Giromini, P.
Giurgiu, G.
Glagolev, V.
Glenzinski, D.
Gold, M.
Goldin, D.
Goldschmidt, N.
Golossanov, A.
Gomez, G.
Gomez-Ceballos, G.
Goncharov, M.
Gonzalez, O.
Gorelov, I.
Goshaw, A. T.
Goulianos, K.
Grinstein, S.
Grosso-Pilcher, C.
Group, R. C.
da Costa, J. Guimaraes
Gunay-Unalan, Z.
Haber, C.
Hahn, S. R.
Halkiadakis, E.
Hamaguchi, A.
Han, J. Y.
Happacher, F.
Hara, K.
Hare, D.
Hare, M.
Harr, R. F.
Hatakeyama, K.
Hays, C.
Heck, M.
Heinrich, J.
Herndon, M.
Hewamanage, S.
Hocker, A.
Hopkins, W.
Horn, D.
Hou, S.
Hughes, R. E.
Hurwitz, M.
Husemann, U.
Hussain, N.
Hussein, M.
Huston, J.
Introzzi, G.
Iori, M.
Ivanov, A.
James, E.
Jang, D.
Jang, H. J.
Jayatilaka, B.
Jeon, E. J.
Jindariani, S.
Johnson, W.
Jones, M.
Joo, K. K.
Jun, S. Y.
Junk, T. R.
Kamon, T.
Karchin, P. E.
Kasmi, A.
Kato, Y.
Ketchum, W.
Keung, J.
Khotilovich, V.
Kilminster, B.
Kim, D. H.
Kim, H. S.
Kim, J. E.
Kim, M. J.
Kim, S. B.
Kim, S. H.
Kim, Y. K.
Kim, Y. J.
Kimura, N.
Kirby, M.
Knoepfel, K.
Kondo, K.
Kong, D. J.
Konigsberg, J.
Kotwal, A. V.
Kreps, M.
Kroll, J.
Krop, D.
Kruse, M.
Krutelyov, V.
Kuhr, T.
Kurata, M.
Kwang, S.
Laasanen, A. T.
Lami, S.
Lammel, S.
Lancaster, M.
Lander, R. L.
Lannon, K.
Lath, A.
Latino, G.
LeCompte, T.
Lee, E.
Lee, H. S.
Lee, J. S.
Lee, S. W.
Leo, S.
Leone, S.
Lewis, J. D.
Limosani, A.
Lin, C. -J.
Linacre, J.
Lindgren, M.
Lipeles, E.
Lister, A.
Litvintsev, D. O.
Liu, C.
Liu, H.
Liu, Q.
Liu, T.
Lockwitz, S.
Loginov, A.
Lucchesi, D.
Lueck, J.
Lujan, P.
Lukens, P.
Lungu, G.
Lys, J.
Lysak, R.
Madrak, R.
Maeshima, K.
Maestro, P.
Malik, S.
Manca, G.
Manousakis-Katsikakis, A.
Margaroli, F.
Marino, C.
Martinez, M.
Matera, K.
Mattson, M. E.
Mazzacane, A.
Mazzanti, P.
McFarland, K. S.
McIntyre, P.
McNulty, R.
Mehta, A.
Mehtala, P.
Mesropian, C.
Miao, T.
Mietlicki, D.
Mitra, A.
Miyake, H.
Moed, S.
Moggi, N.
Mondragon, M. N.
Moon, C. S.
Moore, R.
Morello, M. J.
Morlock, J.
Fernandez, P. Movilla
Mukherjee, A.
Muller, Th
Murat, P.
Mussini, M.
Nachtman, J.
Nagai, Y.
Naganoma, J.
Nakano, I.
Napier, A.
Nett, J.
Neu, C.
Neubauer, M. S.
Nielsen, J.
Nodulman, L.
Noh, S. Y.
Norniella, O.
Nurse, E.
Oakes, L.
Oh, S. H.
Oh, Y. D.
Oksuzian, I.
Okusawa, T.
Orava, R.
Ortolan, L.
Griso, S. Pagan
Pagliarone, C.
Palencia, E.
Papadimitriou, V.
Paramonov, A. A.
Patrick, J.
Pauletta, G.
Paulini, M.
Paus, C.
Pellett, D. E.
Penzo, A.
Phillips, T. J.
Piacentino, G.
Pianori, E.
Pilot, J.
Pitts, K.
Plager, C.
Pondrom, L.
Poprocki, S.
Potamianos, K.
Poukhov, O.
Prokoshin, F.
Pranko, A.
Ptohos, F.
Punzi, G.
Rahaman, A.
Ramakrishnan, V.
Ranjan, N.
Redondo, I.
Renton, P.
Rescigno, M.
Riddick, T.
Rimondi, F.
Ristori, L.
Robson, A.
Rodrigo, T.
Rodriguez, T.
Rogers, E.
Rolli, S.
Roser, R.
Rubbo, F.
Ruffini, F.
Ruiz, A.
Russ, J.
Rusu, V.
Safonov, A.
Sakumoto, W. K.
Sakurai, Y.
Santi, L.
Sato, K.
Saveliev, V.
Savoy-Navarro, A.
Schlabach, P.
Schmidt, A.
Schmidt, E. E.
Schmidt, M. P.
Schwarz, T.
Scodellaro, L.
Scribano, A.
Scuri, F.
Sedov, A.
Seidel, S.
Seiya, Y.
Semenov, A.
Sforza, F.
Shalhout, S. Z.
Shears, T.
Shepard, P. F.
Shimojima, M.
Shochet, M.
Shreyber-Tecker, I.
Simonenko, A.
Sinervo, P.
Sissakian, A.
Sliwa, K.
Smith, J. R.
Snider, F. D.
Soha, A.
Sorin, V.
Squillacioti, P.
Stancari, M.
St Denis, R.
Stelzer, B.
Stelzer-Chilton, O.
Stentz, D.
Strologas, J.
Strycker, G. L.
Sudo, Y.
Sukhanov, A.
Suslov, I.
Takemasa, K.
Takeuchi, Y.
Tang, J.
Tecchio, M.
Teng, P. K.
Thom, J.
Thome, J.
Thompson, G. A.
Thomson, E.
Toback, D.
Tokar, S.
Tollefson, K.
Tomura, T.
Tonelli, D.
Torre, S.
Torretta, D.
Totaro, P.
Trovato, M.
Tu, Y.
Ukegawa, F.
Uozumi, S.
Varganov, A.
Vazquez, F.
Velev, G.
Vellidis, C.
Vidal, M.
Vila, I.
Vilar, R.
Vizan, J.
Vogel, M.
Volpi, G.
Wagner, P.
Wagner, R. L.
Wakisaka, T.
Wallny, R.
Wang, S. M.
Warburton, A.
Waters, D.
Wester, W. C., III
Whiteson, D.
Wicklund, A. B.
Wicklund, E.
Wilbur, S.
Wick, F.
Williams, H. H.
Wilson, J. S.
Wilson, P.
Winer, B. L.
Wittich, P.
Wolbers, S.
Wolfe, H.
Wright, T.
Wu, X.
Wu, Z.
Yamamoto, K.
Yang, T.
Yang, U. K.
Yang, Y. C.
Yao, W. -M.
Yeh, G. P.
Yi, K.
Yoh, J.
Yorita, K.
Yoshida, T.
Yu, G. B.
Yu, I.
Yu, S. S.
Yun, J. C.
Zanetti, A.
Zeng, Y.
Zucchelli, S.
CA CDF Collaboration
TI Search for resonant production of t(t)over-bar pairs in 4.8 fb(-1) of
integrated luminosity of p(p)over-bar collisions at root s=1.96 TeV
SO PHYSICAL REVIEW D
LA English
DT Article
ID SYMMETRY-BREAKING; DETECTOR; CALORIMETER; HIERARCHY; PHYSICS; MASS
AB We search for resonant production of t (t) over bar pairs in 4.8 fb(-1) integrated luminosity of p (p) over bar collision data at root s = 1.96 TeV in the lepton + jets decay channel, where one top quark decays leptonically and the other hadronically. A matrix-element reconstruction technique is used; for each event a probability density function of the t (t) over bar candidate invariant mass is sampled. These probability density functions are used to construct a likelihood function, whereby the cross section for resonant t (t) over bar production is estimated, given a hypothetical resonance mass and width. The data indicate no evidence of resonant production of t (t) over bar pairs. A benchmark model of leptophobic Z' -> t (t) over bar is excluded with m(Z') < 900 GeV/c(2) at 95% confidence level.
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RP Aaltonen, T (reprint author), Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland.
RI Prokoshin, Fedor/E-2795-2012; Canelli, Florencia/O-9693-2016; Moon,
Chang-Seong/J-3619-2014; Scodellaro, Luca/K-9091-2014; Paulini,
Manfred/N-7794-2014; Russ, James/P-3092-2014; unalan,
zeynep/C-6660-2015; Garcia, Jose /H-6339-2015; ciocci, maria agnese
/I-2153-2015; Cavalli-Sforza, Matteo/H-7102-2015; Chiarelli,
Giorgio/E-8953-2012; Introzzi, Gianluca/K-2497-2015; Piacentino,
Giovanni/K-3269-2015; Gorelov, Igor/J-9010-2015; Ruiz,
Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; St.Denis,
Richard/C-8997-2012; maestro, paolo/E-3280-2010; manca,
giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; Zeng, Yu/C-1438-2013;
Annovi, Alberto/G-6028-2012; Ivanov, Andrew/A-7982-2013; Warburton,
Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; Lysak,
Roman/H-2995-2014; Punzi, Giovanni/J-4947-2012
OI Prokoshin, Fedor/0000-0001-6389-5399; Canelli,
Florencia/0000-0001-6361-2117; Moon, Chang-Seong/0000-0001-8229-7829;
Scodellaro, Luca/0000-0002-4974-8330; Paulini,
Manfred/0000-0002-6714-5787; Russ, James/0000-0001-9856-9155; unalan,
zeynep/0000-0003-2570-7611; ciocci, maria agnese /0000-0003-0002-5462;
Chiarelli, Giorgio/0000-0001-9851-4816; Introzzi,
Gianluca/0000-0002-1314-2580; Piacentino, Giovanni/0000-0001-9884-2924;
Gorelov, Igor/0000-0001-5570-0133; Ruiz, Alberto/0000-0002-3639-0368;
maestro, paolo/0000-0002-4193-1288; Annovi, Alberto/0000-0002-4649-4398;
Ivanov, Andrew/0000-0002-9270-5643; Warburton,
Andreas/0000-0002-2298-7315; Punzi, Giovanni/0000-0002-8346-9052
FU U.S. Department of Energy; Italian Istituto Nazionale di Fisica
Nucleare; Ministry of Education, Culture, Sports, Science and Technology
of Japan; Natural Sciences and Engineering Research Council of Canada;
National Science Council of the Republic of China; Swiss National
Science Foundation; A. P. Sloan Foundation; Bundesministerium fur
Bildung und Forschung, Germany; Korean World Class University, the
National Research Foundation of Korea; Science and Technology Facilities
Council; Royal Society, UK; Institut National de Physique Nucleaire et
Physique des Particules/CNRS; Russian Foundation for Basic Research;
Ministerio de Ciencia e Innovacion; Programa Consolider-Ingenio, Spain;
Slovak RD Agency; Academy of Finland; Australian Research Council (ARC);
National Science Foundation
FX We thank the Fermilab staff and the technical staffs of the
participating institutions for their vital contributions. This work was
supported by the U.S. Department of Energy and National Science
Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the
Ministry of Education, Culture, Sports, Science and Technology of Japan;
the Natural Sciences and Engineering Research Council of Canada; the
National Science Council of the Republic of China; the Swiss National
Science Foundation; the A. P. Sloan Foundation; the Bundesministerium
fur Bildung und Forschung, Germany; the Korean World Class University
Program, the National Research Foundation of Korea; the Science and
Technology Facilities Council and the Royal Society, UK; the Institut
National de Physique Nucleaire et Physique des Particules/CNRS; the
Russian Foundation for Basic Research; the Ministerio de Ciencia e
Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D
Agency; the Academy of Finland; and the Australian Research Council
(ARC).
NR 31
TC 21
Z9 21
U1 2
U2 20
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD OCT 27
PY 2011
VL 84
IS 7
AR 072004
DI 10.1103/PhysRevD.84.072004
PG 8
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 846HI
UT WOS:000296887400001
ER
PT J
AU Adamson, P
Auty, DJ
Ayres, DS
Backhouse, C
Barr, G
Betancourt, M
Bishai, M
Blake, A
Bock, GJ
Boehnlein, DJ
Bogert, D
Cao, SV
Cavanaugh, S
Cherdack, D
Childress, S
Coelho, JAB
Corwin, L
Cronin-Hennessy, D
Danko, IZ
de Jong, JK
Devenish, NE
Diwan, MV
Dorman, M
Escobar, CO
Evans, J
Falk, E
Feldman, GJ
Frohne, MV
Gallagher, HR
Gomes, RA
Goodman, MC
Gouffon, P
Graf, N
Gran, R
Grzelak, K
Habig, A
Hartnell, J
Hatcher, R
Himmel, A
Holin, A
Huang, X
Hylen, J
Irwin, GM
Isvan, Z
Jaffe, DE
James, C
Jensen, D
Kafka, T
Kasahara, SMS
Koizumi, G
Kopp, S
Kordosky, M
Kreymer, A
Lang, K
Lefeuvre, G
Ling, J
Litchfield, PJ
Loiacono, L
Lucas, P
Mann, WA
Marshak, ML
Mathis, M
Mayer, N
McGowan, AM
Mehdiyev, R
Meier, JR
Messier, MD
Michael, DG
Miller, WH
Mishra, SR
Mitchell, J
Moore, CD
Mualem, L
Mufson, S
Musser, J
Naples, D
Nelson, JK
Newman, HB
Nichol, RJ
Nowak, JA
Ochoa-Ricoux, JP
Oliver, WP
Orchanian, M
Paley, J
Patterson, RB
Pawloski, G
Pearce, GF
Phan-Budd, S
Plunkett, RK
Qiu, X
Ratchford, J
Rebel, B
Rosenfeld, C
Rubin, HA
Sanchez, MC
Schneps, J
Schreckenberger, A
Schreiner, P
Shanahan, P
Sharma, R
Sousa, A
Tagg, N
Talaga, RL
Thomas, J
Thomson, MA
Toner, R
Torretta, D
Tzanakos, G
Urheim, J
Vahle, P
Viren, B
Walding, JJ
Weber, A
Webb, RC
White, C
Whitehead, L
Wojcicki, SG
Yang, T
Zwaska, R
AF Adamson, P.
Auty, D. J.
Ayres, D. S.
Backhouse, C.
Barr, G.
Betancourt, M.
Bishai, M.
Blake, A.
Bock, G. J.
Boehnlein, D. J.
Bogert, D.
Cao, S. V.
Cavanaugh, S.
Cherdack, D.
Childress, S.
Coelho, J. A. B.
Corwin, L.
Cronin-Hennessy, D.
Danko, I. Z.
de Jong, J. K.
Devenish, N. E.
Diwan, M. V.
Dorman, M.
Escobar, C. O.
Evans, J.
Falk, E.
Feldman, G. J.
Frohne, M. V.
Gallagher, H. R.
Gomes, R. A.
Goodman, M. C.
Gouffon, P.
Graf, N.
Gran, R.
Grzelak, K.
Habig, A.
Hartnell, J.
Hatcher, R.
Himmel, A.
Holin, A.
Huang, X.
Hylen, J.
Irwin, G. M.
Isvan, Z.
Jaffe, D. E.
James, C.
Jensen, D.
Kafka, T.
Kasahara, S. M. S.
Koizumi, G.
Kopp, S.
Kordosky, M.
Kreymer, A.
Lang, K.
Lefeuvre, G.
Ling, J.
Litchfield, P. J.
Loiacono, L.
Lucas, P.
Mann, W. A.
Marshak, M. L.
Mathis, M.
Mayer, N.
McGowan, A. M.
Mehdiyev, R.
Meier, J. R.
Messier, M. D.
Michael, D. G.
Miller, W. H.
Mishra, S. R.
Mitchell, J.
Moore, C. D.
Mualem, L.
Mufson, S.
Musser, J.
Naples, D.
Nelson, J. K.
Newman, H. B.
Nichol, R. J.
Nowak, J. A.
Ochoa-Ricoux, J. P.
Oliver, W. P.
Orchanian, M.
Paley, J.
Patterson, R. B.
Pawloski, G.
Pearce, G. F.
Phan-Budd, S.
Plunkett, R. K.
Qiu, X.
Ratchford, J.
Rebel, B.
Rosenfeld, C.
Rubin, H. A.
Sanchez, M. C.
Schneps, J.
Schreckenberger, A.
Schreiner, P.
Shanahan, P.
Sharma, R.
Sousa, A.
Tagg, N.
Talaga, R. L.
Thomas, J.
Thomson, M. A.
Toner, R.
Torretta, D.
Tzanakos, G.
Urheim, J.
Vahle, P.
Viren, B.
Walding, J. J.
Weber, A.
Webb, R. C.
White, C.
Whitehead, L.
Wojcicki, S. G.
Yang, T.
Zwaska, R.
TI Improved Search for Muon-Neutrino to Electron-Neutrino Oscillations in
MINOS
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID LEPTON CHARGE
AB We report the results of a search for nu(e) appearance in a nu(mu) beam in the MINOS long-baseline neutrino experiment. With an improved analysis and an increased exposure of 8.2 x 10(20) protons on the NuMI target at Fermilab, we find that 2sin(2)(theta(23))sin(2)(2 theta(13)) < 0.12(0.20) at 90% confidence level for delta = 0 and the normal ( inverted) neutrino mass hierarchy, with a best-fit of 2sin(2)(theta(23))sin(2)(2 theta(13)) = 0.041(-0.031)(+0.047)(0.079(-0.053)(+0.071)). The theta(13) 0 hypothesis is disfavored by the MINOS data at the 89% confidence level.
C1 [Adamson, P.; Bock, G. J.; Boehnlein, D. J.; Bogert, D.; Childress, S.; Hatcher, R.; Hylen, J.; James, C.; Jensen, D.; Koizumi, G.; Kreymer, A.; Lucas, P.; Moore, C. D.; Plunkett, R. K.; Rebel, B.; Shanahan, P.; Sharma, R.; Torretta, D.; Zwaska, R.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Ayres, D. S.; Goodman, M. C.; Huang, X.; McGowan, A. M.; Paley, J.; Phan-Budd, S.; Schreiner, P.; Talaga, R. L.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Tzanakos, G.] Univ Athens, Dept Phys, GR-15771 Athens, Greece.
[Bishai, M.; Diwan, M. V.; Jaffe, D. E.; Ling, J.; Viren, B.; Whitehead, L.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Himmel, A.; Michael, D. G.; Mualem, L.; Newman, H. B.; Ochoa-Ricoux, J. P.; Orchanian, M.; Patterson, R. B.] CALTECH, Lauritsen Lab, Pasadena, CA 91125 USA.
[Blake, A.; Mitchell, J.; Thomson, M. A.; Toner, R.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
[Coelho, J. A. B.; Escobar, C. O.] Univ Estadual Campinas, IFGW UNICAMP, BR-13083970 Campinas, SP, Brazil.
[Gomes, R. A.] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, Go, Brazil.
[Cavanaugh, S.; Feldman, G. J.; Sousa, A.] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA.
[Frohne, M. V.] Coll Holy Cross, Notre Dame, IN 46556 USA.
[Graf, N.; Rubin, H. A.; White, C.] IIT, Dept Phys, Chicago, IL 60616 USA.
[Corwin, L.; Mayer, N.; Messier, M. D.; Mufson, S.; Musser, J.; Paley, J.; Urheim, J.] Indiana Univ, Bloomington, IN 47405 USA.
[Sanchez, M. C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Dorman, M.; Evans, J.; Holin, A.; Nichol, R. J.; Thomas, J.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Betancourt, M.; Cronin-Hennessy, D.; Kasahara, S. M. S.; Litchfield, P. J.; Marshak, M. L.; Meier, J. R.; Miller, W. H.; Nowak, J. A.; Schreckenberger, A.] Univ Minnesota, Minneapolis, MN 55455 USA.
[Gran, R.; Habig, A.] Univ Minnesota, Dept Phys, Duluth, MN 55812 USA.
[Tagg, N.] Otterbein Coll, Westerville, OH 43081 USA.
[Backhouse, C.; Barr, G.; de Jong, J. K.; Weber, A.] Univ Oxford, Subdept Particle Phys, Oxford OX1 3RH, England.
[Danko, I. Z.; Isvan, Z.; Naples, D.; Sanchez, M. C.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
[Litchfield, P. J.; Pearce, G. F.; Weber, A.] Sci & Technol Facil Council, Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Gouffon, P.] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil.
[Ling, J.; Mishra, S. R.; Rosenfeld, C.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Irwin, G. M.; Pawloski, G.; Qiu, X.; Wojcicki, S. G.; Yang, T.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Auty, D. J.; Devenish, N. E.; Falk, E.; Hartnell, J.; Lefeuvre, G.] Univ Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England.
[Webb, R. C.] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA.
[Cao, S. V.; Kopp, S.; Lang, K.; Loiacono, L.; Mehdiyev, R.; Ratchford, J.] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA.
[Cherdack, D.; Gallagher, H. R.; Kafka, T.; Mann, W. A.; Oliver, W. P.; Schneps, J.] Tufts Univ, Dept Phys, Medford, MA 02155 USA.
[Grzelak, K.] Univ Warsaw, Dept Phys, PL-00681 Warsaw, Poland.
[Kordosky, M.; Mathis, M.; Nelson, J. K.; Vahle, P.; Walding, J. J.] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA.
RP Adamson, P (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
RI Gouffon, Philippe/I-4549-2012; Nowak, Jaroslaw/P-2502-2016; Ling,
Jiajie/I-9173-2014; Inst. of Physics, Gleb Wataghin/A-9780-2017; Qiu,
Xinjie/C-6164-2012; Gomes, Ricardo/B-6899-2008; Coelho,
Joao/D-3546-2013; Evans, Justin/P-4981-2014;
OI Gouffon, Philippe/0000-0001-7511-4115; Nowak,
Jaroslaw/0000-0001-8637-5433; Ling, Jiajie/0000-0003-2982-0670; Corwin,
Luke/0000-0001-7143-3821; Hartnell, Jeffrey/0000-0002-1744-7955; Gomes,
Ricardo/0000-0003-0278-4876; Evans, Justin/0000-0003-4697-3337;
Cherdack, Daniel/0000-0002-3829-728X; Weber, Alfons/0000-0002-8222-6681;
Ochoa-Ricoux, Juan Pedro/0000-0001-7376-5555; Cao,
Son/0000-0002-9046-5324
FU U.S. DOE; U.K. STFC; U.S. NSF; State and University of Minnesota;
University of Athens, Greece; Brazil's FAPESP; CNPq; CAPES
FX This work was supported by the U.S. DOE; the U.K. STFC; the U.S. NSF;
the State and University of Minnesota; the University of Athens, Greece;
and Brazil's FAPESP, CNPq, and CAPES. We are grateful to the Minnesota
Department of Natural Resources, the crew of the Soudan Underground
Laboratory, and the staff of Fermilab for their contributions to this
effort.
NR 32
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PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD OCT 27
PY 2011
VL 107
IS 18
AR 181802
DI 10.1103/PhysRevLett.107.181802
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 847WV
UT WOS:000297004200009
ER
PT J
AU Fujii, J
Sperl, M
Ueda, S
Kobayashi, K
Yamashita, Y
Kobata, M
Torelli, P
Borgatti, F
Utz, M
Fadley, CS
Gray, AX
Monaco, G
Back, CH
van der Laan, G
Panaccione, G
AF Fujii, J.
Sperl, M.
Ueda, S.
Kobayashi, K.
Yamashita, Y.
Kobata, M.
Torelli, P.
Borgatti, F.
Utz, M.
Fadley, C. S.
Gray, A. X.
Monaco, G.
Back, C. H.
van der Laan, G.
Panaccione, G.
TI Identification of Different Electron Screening Behavior Between the Bulk
and Surface of (Ga,Mn)As
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID FERROMAGNETIC SEMICONDUCTOR; PHOTOEMISSION; MANIPULATION; SPINTRONICS;
MN)AS; (GA
AB We report x-ray photoemission spectroscopy results on (Ga,Mn)As films as a function of both temperature and Mn doping. Analysis of Mn 2p core level spectra reveals the presence of a distinct electronic screening channel in the bulk, hitherto undetected in more surface sensitive analysis. Comparison with model calculations identifies the character of the Mn 3d electronic states and clarifies the role, and the difference between surface and bulk, of hybridization in mediating the ferromagnetic coupling in (Ga,Mn)As.
C1 [Fujii, J.; Torelli, P.; Panaccione, G.] CNR Ist Officina Mat IOM, Lab TASC, I-34149 Trieste, Italy.
[Sperl, M.; Utz, M.; Back, C. H.] Univ Regensburg, Inst Expt Phys, D-93040 Regensburg, Germany.
[Ueda, S.; Kobayashi, K.; Yamashita, Y.; Kobata, M.] Natl Inst Mat Sci, NIMS Beamline Stn Spring 8, Sayo, Hyogo 6795148, Japan.
[Borgatti, F.] CNR Ist Studio Mat Nanostrutturati ISMN, I-40129 Bologna, Italy.
[Fadley, C. S.; Gray, A. X.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
[Fadley, C. S.; Gray, A. X.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Monaco, G.] European Synchrotron Radiat Facil, F-38043 Grenoble, France.
[van der Laan, G.] Diamond Light Source, Didcot OX11 0DE, Oxon, England.
RP Fujii, J (reprint author), CNR Ist Officina Mat IOM, Lab TASC, SS 14,Km 163-5, I-34149 Trieste, Italy.
RI Back, Christian/A-8969-2012; Gray, Alexander/F-9267-2011; MSD,
Nanomag/F-6438-2012; UEDA, Shigenori/H-2991-2011; borgatti,
francesco/H-9777-2014; van der Laan, Gerrit/Q-1662-2015; YAMASHITA,
Yoshiyuki/H-2704-2011;
OI Back, Christian/0000-0003-3840-0993; borgatti,
francesco/0000-0003-4659-4329; van der Laan, Gerrit/0000-0001-6852-2495;
Jun, Fujii/0000-0003-3208-802X; TORELLI, PIERO/0000-0001-9300-9685
FU MEXT, Japan; DFG [SFB 689]; U.S. Department of Energy
[DE-AC02-05CH11231]
FX The authors are grateful to HiSOR, Hiroshima Univ. and JAEA/SPring-8 for
the development of HAXPES at BL15XU of SPring-8. The experiments at
BL15XU were performed under the approval of NIMS Beamline Station
(Proposal No. 2010B4900) and partially supported by Nanotechnology
Network Project, MEXT, Japan. Part of this research has been supported
by the DFG through Grant No. SFB 689. Two of us (A. X. G. and C. S. F.)
also acknowledge the support of the U.S. Department of Energy (Contract
No. DE-AC02-05CH11231).
NR 32
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PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD OCT 27
PY 2011
VL 107
IS 18
AR 187203
DI 10.1103/PhysRevLett.107.187203
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 847WV
UT WOS:000297004200024
PM 22107669
ER
PT J
AU Stock, C
Sokolov, DA
Bourges, P
Tobash, PH
Gofryk, K
Ronning, F
Bauer, ED
Rule, KC
Huxley, AD
AF Stock, C.
Sokolov, D. A.
Bourges, P.
Tobash, P. H.
Gofryk, K.
Ronning, F.
Bauer, E. D.
Rule, K. C.
Huxley, A. D.
TI Anisotropic Critical Magnetic Fluctuations in the Ferromagnetic
Superconductor UCoGe
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID URHGE; COEXISTENCE; STATE; UGE2
AB We report neutron scattering measurements of critical magnetic excitations in the weakly ferromagnetic superconductor UCoGe. The strong non-Landau damping of the excitations we observe, although unusual, has been found in another related ferromagnet, UGe2 at zero pressure. However, we also find that there is a significant anisotropy of the magnetic correlation length in UCoGe that contrasts with an almost isotropic length for UGe2. The values of the magnetic correlation length and damping are found to be compatible with superconductivity on small Fermi-surface pockets. The anisotropy may be important to explain why UCoGe is a superconductor at zero pressure while UGe2 is not.
C1 [Stock, C.] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Stock, C.] Indiana Univ, Bloomington, IN 47404 USA.
[Sokolov, D. A.; Huxley, A. D.] Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Sokolov, D. A.; Huxley, A. D.] Univ Edinburgh, CSEC, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Bourges, P.] CEA, Lab Leon Brillouin, CNRS, UMR12, F-91191 Gif Sur Yvette, France.
[Tobash, P. H.; Gofryk, K.; Ronning, F.; Bauer, E. D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Rule, K. C.] Helmholtz Zentrum Berlin, D-14109 Berlin, Germany.
RP Stock, C (reprint author), NIST, Ctr Neutron Res, 100 Bur Dr, Gaithersburg, MD 20899 USA.
RI Gofryk, Krzysztof/F-8755-2014; Sokolov, D/G-7755-2011;
OI Bauer, Eric/0000-0003-0017-1937; Gofryk, Krzysztof/0000-0002-8681-6857;
Ronning, Filip/0000-0002-2679-7957
FU Royal Society; EPSRC; SUPA; U.S. DOE, OBES, Division of Materials
Sciences and Engineering; LANL; NSF [DMR-0944772]
FX Support from the Royal Society (A. H.), EPSRC (A. H., D. S.), and SUPA
(C. S.) is gratefully acknowledged. Work at Los Alamos National
Laboratory was performed under the auspices of the U.S. DOE, OBES,
Division of Materials Sciences and Engineering, and funded in part by
the LANL LDRD program. Work on MACS was partly supported by the NSF
under agreement No. DMR-0944772.
NR 23
TC 16
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U1 1
U2 24
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD OCT 27
PY 2011
VL 107
IS 18
AR 187202
DI 10.1103/PhysRevLett.107.187202
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 847WV
UT WOS:000297004200023
PM 22107668
ER
PT J
AU Herranz, T
Deng, XY
Cabot, A
Liu, Z
Salmeron, M
AF Herranz, Tirma
Deng, Xingyi
Cabot, Andreu
Liu, Zhi
Salmeron, Miguel
TI In situ XPS study of the adsorption and reactions of NO and O-2 on gold
nanoparticles deposited on TiO2 and SiO2
SO JOURNAL OF CATALYSIS
LA English
DT Article
DE Gold; Titanium oxide; Ambient pressure photoelectron spectroscopy; In
situ characterization; Band bending; Model catalysts; Nitric oxide
ID PRESSURE PHOTOELECTRON-SPECTROSCOPY; NITRIC-OXIDE; AMBIENT-PRESSURE;
CARBON-MONOXIDE; CO OXIDATION; PLATINUM NANOPARTICLES; ROOM-TEMPERATURE;
OXYGEN; CATALYSTS; SURFACE
AB Ambient pressure photoelectron spectroscopy (APPES) has been used to study the adsorption of nitric oxide (NO) and molecular oxygen (O-2) over gold-based model catalysts consisting of mono-dispersed gold nanoparticles with different diameters (2-5 nm) and oxide supports (including polycrystalline silica and titania thin films). APPES is an in situ technique that makes possible to monitor via XPS chemical changes occurring on the catalyst surface and to identify adsorbed species under reaction conditions. In our experiments, no changes were observed on the Au/SiO2 samples during exposure to 0.5 Torr of NO, while adsorbed NO and several N-containing species were detected on Au/TiO2 model catalysts under the same conditions. In addition, shifts in the Ti3p and O 1s peaks in TiO2 were observed relative to the Au 4f peak. Similar behavior, although to a lesser extent, was observed on Au/TiO2 samples when O-2 was used. In both cases, the shifts of the Ti3p and O 1s peaks could be attributed to band bending effects on the TiO2 substrate caused by chemisorption of the gases. (C) 2011 Elsevier Inc. All rights reserved.
C1 [Salmeron, Miguel] Univ Calif Berkeley, Mat Sci & Engn Dept, Berkeley, CA 94720 USA.
[Herranz, Tirma; Deng, Xingyi; Cabot, Andreu; Salmeron, Miguel] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA USA.
[Liu, Zhi] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA USA.
RP Salmeron, M (reprint author), Univ Calif Berkeley, Mat Sci & Engn Dept, Berkeley, CA 94720 USA.
EM mbsalmeron@lbl.gov
RI Herranz, Tirma/A-8656-2008; andreu, cabot/B-5683-2014; Liu,
Zhi/B-3642-2009;
OI Liu, Zhi/0000-0002-8973-6561; Deng, Xingyi/0000-0001-9109-1443; cabot,
andreu /0000-0002-7533-3251
FU Office of Science, Office of Basic Energy Sciences, Chemical Sciences,
Geosciences, and Biosciences Division, under the Department of Energy
[DE-AC02-05CH11231]; Ramon Areces foundation from Spain
FX This work was supported by the Director, Office of Science, Office of
Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences
Division, under the Department of Energy Contract No. DE-AC02-05CH11231.
T.H. acknowledges the Ramon Areces foundation from Spain for financial
support.
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U1 12
U2 112
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9517
J9 J CATAL
JI J. Catal.
PD OCT 27
PY 2011
VL 283
IS 2
BP 119
EP 123
DI 10.1016/j.jcat.2011.06.022
PG 5
WC Chemistry, Physical; Engineering, Chemical
SC Chemistry; Engineering
GA 843NK
UT WOS:000296678500001
ER
PT J
AU Smith, DM
Dwyer, JR
Hazelton, BJ
Grefenstette, BW
Martinez-McKinney, GFM
Zhang, ZY
Lowell, AW
Kelley, NA
Splitt, ME
Lazarus, SM
Ulrich, W
Schaal, M
Saleh, ZH
Cramer, E
Rassoul, H
Cummer, SA
Lu, G
Shao, XM
Ho, C
Hamlin, T
Blakeslee, RJ
Heckman, S
AF Smith, D. M.
Dwyer, J. R.
Hazelton, B. J.
Grefenstette, B. W.
Martinez-McKinney, G. F. M.
Zhang, Z. Y.
Lowell, A. W.
Kelley, N. A.
Splitt, M. E.
Lazarus, S. M.
Ulrich, W.
Schaal, M.
Saleh, Z. H.
Cramer, E.
Rassoul, H.
Cummer, S. A.
Lu, G.
Shao, X. -M.
Ho, C.
Hamlin, T.
Blakeslee, R. J.
Heckman, S.
TI A terrestrial gamma ray flash observed from an aircraft
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID X-RAYS; THUNDERSTORM
AB On 21 August 2009, the Airborne Detector for Energetic Lightning Emissions (ADELE), an array of six gamma-ray detectors, detected a brief burst of gamma rays while flying aboard a Gulfstream V jet near two active thunderstorm cells. The duration and spectral characteristics of the event are consistent with the terrestrial gamma ray flashes (TGFs) seen by instruments in low Earth orbit. A long-duration, complex +IC flash was taking place in the nearer cell at the same time, at a distance of similar to 10 km from the plane. The sferics that are probably associated with this flash extended over 54 ms and included several ULF pulses corresponding to charge moment changes of up to 30 C km, this value being in the lower half of the range of sferics associated with TGFs seen from space. Monte Carlo simulations of gamma ray propagation in the Earth's atmosphere show that a TGF of normal intensity would, at this distance, have produced a gamma ray signal in ADELE of approximately the size and spectrum that was actually observed. We conclude that this was the first detection of a TGF from an aircraft. We show that because of the distance, ADELE's directional and spectral capabilities could not strongly constrain the source altitude of the TGF but that such constraints would be possible for TGFs detected at closer range.
C1 [Smith, D. M.; Martinez-McKinney, G. F. M.; Zhang, Z. Y.; Kelley, N. A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Smith, D. M.; Lowell, A. W.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Dwyer, J. R.; Schaal, M.; Cramer, E.; Rassoul, H.] Florida Inst Technol, Dept Phys & Space Sci, Melbourne, FL 32901 USA.
[Hazelton, B. J.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Grefenstette, B. W.] CALTECH, Space Radiat Lab, Pasadena, CA 91125 USA.
[Splitt, M. E.; Lazarus, S. M.] Florida Inst Technol, Dept Marine & Environm Syst, Melbourne, FL 32901 USA.
[Ulrich, W.] Natl Weather Serv, Key West, FL USA.
[Saleh, Z. H.] Mem Sloan Kettering Canc Ctr, Dept Med Phys, New York, NY 10021 USA.
[Cummer, S. A.; Lu, G.] Duke Univ, Dept Elect & Comp Engn, Durham, NC USA.
[Shao, X. -M.; Ho, C.; Hamlin, T.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Blakeslee, R. J.] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35805 USA.
[Heckman, S.] AWS Convergence Technol Inc, Germantown, MD USA.
RP Smith, DM (reprint author), Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
RI Lu, Gaopeng/D-9011-2012; Cummer, Steven/A-6118-2008;
OI Cummer, Steven/0000-0002-0002-0613; Splitt, Michael/0000-0002-7690-5100;
Rassoul, Hamid Kyan Sam/0000-0003-0681-7276; Lazarus,
Steven/0000-0002-5918-1059
FU NSF [ATM-0619941, ATM-0846609]
FX We thank Allen Schanot, the managing scientist of our field campaign
from NCAR/EOL; the other NCAR scientists who filled this role earlier or
helped us with GV data, Pavel Romashkin, Jorgen Jensen, and Jeff Stith;
and the EOL pilots, engineers, and technicians who provided exemplary
support. ADELE's construction was funded by NSF major research
instrumentation grant ATM-0619941. Our simulation work was supported by
NSF grant ATM-0846609. This work includes publicly available data from
the KJAX NEXRAD radar of the National Weather Service.
NR 31
TC 16
Z9 16
U1 0
U2 2
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD OCT 27
PY 2011
VL 116
AR D20124
DI 10.1029/2011JD016252
PG 10
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 839AK
UT WOS:000296336500004
ER
PT J
AU Shao, N
Sun, XG
Dai, S
Jiang, DE
AF Shao, Nan
Sun, Xiao-Guang
Dai, Sheng
Jiang, De-en
TI Electrochemical Windows of Sulfone-Based Electrolytes for High-Voltage
Li-Ion Batteries
SO JOURNAL OF PHYSICAL CHEMISTRY B
LA English
DT Article
ID RECHARGEABLE LITHIUM BATTERIES; OXIDATION POTENTIALS; ANODIC STABILITY;
DENSITY; SOLVENT; LICOPO4
AB Further development of high-voltage lithium-ion batteries requires electrolytes with electrochemical windows greater than 5 V. Sulfone-based electrolytes are promising for such a purpose. Here we compute the electrochemical windows for experimentally tested sulfone electrolytes by different levels of theory in combination with various solvation models. The MP2 method combined with the polarizable continuum model is shown to be the most accurate method to predict oxidation potentials of sulfone-based electrolytes with mean deviation less than 0.29 V. Mulliken charge analysis shows that the oxidation happens on the sulfone group for ethylmethyl sulfone and tetramethylene sulfone, and on the ether group for ether functionalized sulfones. Large electrochemical windows of sulfone-based electrolytes are mainly contributed by the sulfone group in the molecules which helps lower the HOMO level. This study can help understand the voltage limits imposed by the sulfone-based electrolytes and aid in designing new electrolytes with greater electrochemical windows.
C1 [Shao, Nan; Sun, Xiao-Guang; Dai, Sheng; Jiang, De-en] Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37831 USA.
[Dai, Sheng] Univ Tennessee, Dept Chem, Knoxville, TN 37966 USA.
RP Jiang, DE (reprint author), Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37831 USA.
EM jiangd@ornl.gov
RI Jiang, De-en/D-9529-2011; Dai, Sheng/K-8411-2015
OI Jiang, De-en/0000-0001-5167-0731; Dai, Sheng/0000-0002-8046-3931
FU Division of Materials Science and Engineering, Office of Basic Energy
Sciences, U.S. Department of Energy; Office of Science of the U.S.
Department of Energy [DE-AC02-05CH11231]
FX This work was supported by the Division of Materials Science and
Engineering, Office of Basic Energy Sciences, U.S. Department of Energy.
This research used resources of the National Energy Research Scientific
Computing Center, which is supported by the Office of Science of the
U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
NR 38
TC 50
Z9 53
U1 8
U2 79
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1520-6106
J9 J PHYS CHEM B
JI J. Phys. Chem. B
PD OCT 27
PY 2011
VL 115
IS 42
BP 12120
EP 12125
DI 10.1021/jp204401t
PG 6
WC Chemistry, Physical
SC Chemistry
GA 837LL
UT WOS:000296204800018
PM 21919491
ER
PT J
AU Cirigliano, V
Reddy, S
Sharma, R
AF Cirigliano, Vincenzo
Reddy, Sanjay
Sharma, Rishi
TI Low-energy theory for superfluid and solid matter and its application to
the neutron star crust
SO PHYSICAL REVIEW C
LA English
DT Article
ID EFFECTIVE-MASS; ENTRAINMENT COEFFICIENT; CONDUCTION NEUTRONS;
ELASTIC-CONSTANTS; SUPERCONDUCTIVITY; LAGRANGIANS; HELIUM; MODELS;
PHASE; FIELD
AB We formulate a low-energy effective theory describing phases of matter that are both solid and superfluid. These systems simultaneously break translational symmetry and the phase symmetry associated with particle number. The symmetries restrict the combinations of terms that can appear in the effective action and the lowest order terms featuring equal number of derivatives and Goldstone fields are completely specified by the thermodynamic free energy or, equivalently, by the long-wavelength limit of static correlation functions in the ground state. We show that the underlying interaction between particles that constitute the lattice and the superfluid gives rise to entrainment, and mixing between the Goldstone modes. As a concrete example we discuss the low-energy theory for the inner crust of a neutron star, where a lattice of ionized nuclei coexists with a neutron superfluid.
C1 [Cirigliano, Vincenzo; Reddy, Sanjay; Sharma, Rishi] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Reddy, Sanjay] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA.
[Sharma, Rishi] TRIUMF, Theory Grp, Vancouver, BC V6T 2A3, Canada.
RP Cirigliano, V (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM cirigliano@lanl.gov; sareddy@uw.edu; rishi@triumf.ca
OI Cirigliano, Vincenzo/0000-0002-9056-754X
FU US Department of Energy (DOE) [DE-AC52-06NA25396 (LANL)]; DOE
FX We thank Tanmoy Bhattacharya, Nicolas Chamel, Michael Forbes, Michael
Graesser, Emil Mottola, Chris Pethick, and Dam Son for useful
discussions at various stages of this work. We thank Krishna Rajagopal
and Massimo Mannarelli for comments and suggestions on the manuscript.
This work was supported by the US Department of Energy (DOE) Grant No.
DE-AC52-06NA25396 (LANL) and the DOE topical collaboration to study
neutrinos and nucleosynthesis in hot and dense matter.
NR 45
TC 17
Z9 17
U1 0
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD OCT 27
PY 2011
VL 84
IS 4
AR 045809
DI 10.1103/PhysRevC.84.045809
PG 13
WC Physics, Nuclear
SC Physics
GA 841OD
UT WOS:000296520800001
ER
PT J
AU Fox, DM
Harris, RH
Bellayer, S
Gilman, JW
Gelfer, MY
Hsaio, BS
Maupin, PH
Trulove, PC
De Long, HC
AF Fox, Douglas M.
Harris, Richard H., Jr.
Bellayer, Severine
Gilman, Jeffrey W.
Gelfer, Mikhail Y.
Hsaio, Benjamin S.
Maupin, Paul H.
Trulove, Paul C.
De Long, Hugh C.
TI The pillaring effect of the 1,2-dimethyl-3(benzyl ethyl iso-butyl POSS)
imidazolium cation in polymer/montmorillonite nanocomposites
SO POLYMER
LA English
DT Article
DE POSS; Montmorillonite; Nanocomposites
ID POLYHEDRAL OLIGOMERIC SILSESQUIOXANE; POLYMER/LAYERED SILICATE
NANOCOMPOSITES; POLYMER-CLAY NANOCOMPOSITES; LAYERED-SILICATE;
THERMAL-PROPERTIES; POLY(NORBORNYL-POSS) COPOLYMERS; MODIFIED
MONTMORILLONITE; TREATED MONTMORILLONITE; PS NANOCOMPOSITES; FIRE
RETARDANTS
AB A polyhedral oligomeric silsesquioxane (ROSS) tethered imidazolium surfactant was used to exchange montmorillonite for the preparation of polymer nanocomposites in polystyrene, poly(ethylene-co-vinyl acetate), and polyamide-6 using a melt blending technique. Simultaneous temperature resolved small angle X-ray scattering and wide angle X-ray diffraction was used to monitor the surfactant stability and phase behavior of the polyamide-6 nanocomposites. Good thermal stability of the surfactant was in agreement with thermogravimetric analysis. Transmission electron microscopy revealed a mixed inter-calated/exfoliated structure, with the presence of small tactoids exhibiting gallery spacings greater than 3.8 nm in all three polymers. Fluorescently tagged organically exchanged montomorillonite was used to assess the quality of nanoparticle dispersion. Exchanging the montmorillonite with lower loadings of the POSS surfactant slightly increased the size of clay tactoids, but did not significantly alter the gallery spacing or overall dispersion. The results suggest that the bulky and rigid structure of POSS, as well as its tendency to aggregate into ordered crystals, form a bilayer structure in the clay galleries and prevent montmorillonite from completely exfoliating, even in polyamide-6. (C) 2011 Elsevier Ltd. All rights reserved.
C1 [Fox, Douglas M.] American Univ, Dept Chem, Washington, DC 20016 USA.
[Fox, Douglas M.; Harris, Richard H., Jr.; Bellayer, Severine; Maupin, Paul H.] NIST, Fire Res Div, Engn Lab, Gaithersburg, MD 20899 USA.
[Gelfer, Mikhail Y.; Hsaio, Benjamin S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
[Gelfer, Mikhail Y.; Hsaio, Benjamin S.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
[Maupin, Paul H.] US DOE, Off Basic Energy Sci, Off Sci, Washington, DC 20585 USA.
[Trulove, Paul C.] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
[De Long, Hugh C.] AF Off Sci Res, Math Informat & Life Sci Directorate, Arlington, VA 22203 USA.
[Gilman, Jeffrey W.] NIST, Div Polymers, Mat Measurement Lab, Gaithersburg, MD 20899 USA.
RP Fox, DM (reprint author), American Univ, Dept Chem, Washington, DC 20016 USA.
EM dfox@american.edu; jeffrey.gilman@nist.gov
FU U.S. Naval Academy; National Research Council; National Institute of
Standards and Technology; U.S. Air Force Office of Scientific Research;
Air Force Office of Scientific Research [F1ATA00236G002,
F1ATA000496G002, FA9550-10-1-0323]
FX The authors wish to thank the U.S. Naval Academy, the National Research
Council, the National Institute of Standards and Technology, and the
U.S. Air Force Office of Scientific Research for funding and facilities
while conducting this research. This material is based in part upon work
supported by the Air Force Office of Scientific Research under Award No.
F1ATA00236G002, Award No. F1ATA000496G002, and Award No.
FA9550-10-1-0323.
NR 64
TC 7
Z9 7
U1 0
U2 28
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0032-3861
J9 POLYMER
JI Polymer
PD OCT 27
PY 2011
VL 52
IS 23
BP 5335
EP 5343
DI 10.1016/j.polymer.2011.09.016
PG 9
WC Polymer Science
SC Polymer Science
GA 838QK
UT WOS:000296307100014
ER
PT J
AU Liemohn, MW
De Zeeuw, DL
Ilie, R
Ganushkina, NY
AF Liemohn, Michael W.
De Zeeuw, Darren L.
Ilie, Raluca
Ganushkina, Natalia Y.
TI Deciphering magnetospheric cross-field currents
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID RING CURRENT; MAGNETIC-FIELD; INNER MAGNETOSPHERE; TAIL CURRENT; CURRENT
SYSTEMS; EARTHS MAGNETOSPHERE; STORMS; MODEL; EVENTS; SHEET
AB A single near-tail magnetic field line can be part of a variety of cross-field current systems, making the interpretation of such currents difficult. It is shown that global, coupled-model simulation results from the 22 October 1999 storm include a field line crossing downtail at L = 8 during the main phase that contains partial ring current, symmetric ring current, and tail current simultaneously. Such field lines with multiple currents are common in the near-Earth tail. Another time from the same event showed two closely-spaced field lines (L = 6.0 and 6.5) with completely different current systems on them (one entirely symmetric ring current and the other entirely tail current). It is shown that, for this storm from this simulation, the tail current inner edge systematically shifts inward then outward during the storm main phase and that most of the Dst perturbation is from the ring current (both partial and symmetric). Caution is advised when analyzing observational or numerical cross-field currents and when making conclusions about which type of current system dominates the distortion of the near-Earth magnetosphere. Citation: Liemohn, M. W., D. L. De Zeeuw, R. Ilie, and N. Y. Ganushkina (2011), Deciphering magnetospheric cross-field currents, Geophys. Res. Lett., 38, L20106, doi: 10.1029/2011GL049611.
C1 [Liemohn, Michael W.; De Zeeuw, Darren L.; Ganushkina, Natalia Y.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
[Ilie, Raluca] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
[Ganushkina, Natalia Y.] Finnish Meteorol Inst, FIN-00101 Helsinki, Finland.
RP Liemohn, MW (reprint author), Univ Michigan, Dept Atmospher Ocean & Space Sci, 2455 Hayward St, Ann Arbor, MI 48109 USA.
EM liemohn@umich.edu
RI De Zeeuw, Darren/F-3667-2011; Liemohn, Michael/H-8703-2012; Ilie,
Raluca/A-9291-2013; Ganushkina, Natalia/K-6314-2013
OI Liemohn, Michael/0000-0002-7039-2631;
FU US government; NASA; NSF; Academy of Finland
FX The authors would like to thank the US government for sponsoring this
research, in particular NASA and NSF through various research grants.
Support for NYG was provided by both Finnish and US sponsors, including
the Academy of Finland.
NR 51
TC 13
Z9 13
U1 1
U2 5
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD OCT 27
PY 2011
VL 38
AR L20106
DI 10.1029/2011GL049611
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 839CZ
UT WOS:000296343700005
ER
PT J
AU Cook, AR
Sreearunothai, P
Asaoka, S
Miller, JR
AF Cook, Andrew R.
Sreearunothai, Paiboon
Asaoka, Sadayuki
Miller, John R.
TI Sudden, "Step" Electron Capture by Conjugated Polymers
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID PICOSECOND PULSE-RADIOLYSIS; DIFFUSION-LIMITED REACTIONS; TO-SOLVENT
DYNAMICS; SOLVATED ELECTRONS; CHARGE-TRANSFER; REACTIVE SPHERES;
RADICAL-ANIONS; TETRAHYDROFURAN; RECOMBINATION; RATES
AB Data showing significant time-resolution-limited "step" capture of electrons following radiolysis by 7 - 10 ps electron pulses in a series of different length and different concentration conjugated polyfluorene polymers in tetrahydrofuran (THF) are presented. At the highest concentration, similar to 48 mM in repeat units for lengths from 20 to 133 fluorenes, similar to 30% of the electrons formed during pulse radiolysis were captured in the step, with a constant efficiency per repeat unit. Step capture per repeat unit (q = 6.9 M-1) is 60% of the presolvated electron capture efficiency previously reported for biphenyl in THF, giving capture per polymer molecule 12-80 times larger than that for biphenyl at the same concentration. This increase in capture efficiency is large compared to the rate constant per repeat unit for diffusion-limited electron attachment to the same molecules, which is 13% of that of a single unit of fluorene. Plausible mechanisms of this fast capture are explored. It is shown that both capture of quasi-free and localized presolvated electrons can adequately explain the observations. The large yield of radical anions at low concentration of polyfluorene enables observation of subsequent chemistry on the picosecond time scale in these systems, which would otherwise been limited by diffusional attachment to the nanosecond regime.
C1 [Cook, Andrew R.; Sreearunothai, Paiboon; Miller, John R.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11793 USA.
[Sreearunothai, Paiboon] Thammasat Univ, Sirindhorn Int Inst Technol, Pathum Thai 12121, Thailand.
[Asaoka, Sadayuki] Tokyo Inst Technol, Chem Resources Lab, Yokohama, Kanagawa 2268503, Japan.
RP Cook, AR (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11793 USA.
EM acook@bnl.gov
OI Cook, Andrew/0000-0001-6633-3447
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Chemical Sciences, Geosciences, and Biosciences [DE-AC02-98CH10886]
FX This work, and use of the LEAF Facility of the BNL Accelerator Center
for Energy Research, was supported by the U.S. Department of Energy,
Office of Basic Energy Sciences, Division of Chemical Sciences,
Geosciences, and Biosciences under Contract DE-AC02-98CH10886.
NR 59
TC 3
Z9 3
U1 3
U2 11
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD OCT 27
PY 2011
VL 115
IS 42
BP 11615
EP 11623
DI 10.1021/jp205790k
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 837LJ
UT WOS:000296204500017
PM 21894930
ER
PT J
AU Davidson, AJ
Chellappa, RS
Dattelbaum, DM
Yoo, CS
AF Davidson, Alistair J.
Chellappa, Raja S.
Dattelbaum, Dana M.
Yoo, Choong-Shik
TI Pressure Induced Isostructural Metastable Phase Transition of Ammonium
Nitrate
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID CRYSTAL-STRUCTURE; STATE
AB The energetic material ammonium nitrate (AN, NH4NO3) has been studied under both hydrostatic and nonhydrostatic conditions using diamond anvil cells combined with micro-Raman spectroscopy and synchrotron X-ray powder diffraction. The refined powder X-ray data indicates that under hydrostatic conditions AN-IV (orthorhombic, Pmmn) is stable to above 40 GPa. In one nonhydrostatic compression experiment a volume collapse was observed, suggesting an isostructural phase transition to a "metastable" phase IV' between 17 and 28 GPa. The structures of phase IV and IV are similar with the subtle difference in the hydrogen-bonding network; that is, a noticeably shorter NI center dot center dot center dot O1 distance seen in phase IV. This hydrogen bond has a significant component along the b-axis, which proves to be the most compressible until cell axis over the entire pressure range. It is likely that the shear sties Of the nonhydrostatic experiment drives the phase IV-to-IV' transition to occur. We compare the present isotherms of phase IV and IV' in both static and nonhydrostatic conditions with the previously obtained Hugoniot and find that the nonhydrostatic isotherm approximately matches the Hugoniot. On the basis of this comparison, we conjecture that a chemical reaction or phase transition may occur in AN under dynamic pressure conditions at 22 GPa.
C1 [Davidson, Alistair J.; Yoo, Choong-Shik] Washington State Univ, Inst Shock Phys, Pullman, WA 99164 USA.
[Davidson, Alistair J.; Yoo, Choong-Shik] Washington State Univ, Dept Chem, Pullman, WA 99164 USA.
[Chellappa, Raja S.; Dattelbaum, Dana M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Yoo, CS (reprint author), Washington State Univ, Inst Shock Phys, Pullman, WA 99164 USA.
EM csyoo@wsu.edu
FU U.S. Department of Homeland Security [2008-ST-061-ED0001]; NSF-DMR
[0854618]
FX We thank the CDAC for the provision of X-ray beamtime 16 BDM and 16 IDB,
and Dmitry Popov and Stas Sinogeikin for their assistance during the
experiments. The present study has been supported by the U.S. Department
of Homeland Security under Award Number 2008-ST-061-ED0001 and NSF-DMR
(Grant No. 0854618). The views and conclusions contained in this
document are those of the authors and should not be interpreted as
necessarily representing the official policies, either expressed or
implied, of the U.S. Department of Homeland Security.
NR 30
TC 14
Z9 14
U1 2
U2 11
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD OCT 27
PY 2011
VL 115
IS 42
BP 11889
EP 11896
DI 10.1021/jp207754z
PG 8
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 837LJ
UT WOS:000296204500047
ER
EF