FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Yurko, JP
Buongiorno, J
Youngblood, R
AF Yurko, Joseph P.
Buongiorno, Jacopo
Youngblood, Robert
TI Demonstration of Emulator-Based Bayesian Calibration of Safety Analysis
Codes: Theory and Formulation
SO SCIENCE AND TECHNOLOGY OF NUCLEAR INSTALLATIONS
LA English
DT Article
ID COMPUTER EXPERIMENTS; MODELS
AB System codes for simulation of safety performance of nuclear plants may contain parameters whose values are not known very accurately. New information from tests or operating experience is incorporated into safety codes by a process known as calibration, which reduces uncertainty in the output of the code and thereby improves its support for decision-making. The work reported here implements several improvements on classic calibration techniques afforded by modern analysis techniques. The key innovation has come from development of code surrogate model (or code emulator) construction and prediction algorithms. Use of a fast emulator makes the calibration processes used here with Markov Chain Monte Carlo (MCMC) sampling feasible. This work uses Gaussian Process (GP) based emulators, which have been used previously to emulate computer codes in the nuclear field. The present work describes the formulation of an emulator that incorporates GPs into a factor analysis-type or pattern recognition type model. This "function factorization" Gaussian Process (FFGP) model allows overcoming limitations present in standard GP emulators, thereby improving both accuracy and speed of the emulator-based calibration process. Calibration of a friction-factor example using a Method of Manufactured Solution is performed to illustrate key properties of the FFGP based process.
C1 [Yurko, Joseph P.; Buongiorno, Jacopo] MIT, Cambridge, MA 02139 USA.
[Yurko, Joseph P.] FPoliSolut LLC, Murrysville, PA 15668 USA.
[Youngblood, Robert] INL, Idaho Falls, ID 83415 USA.
RP Yurko, JP (reprint author), MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
EM jyurko@fpolisolutions.com
NR 20
TC 0
Z9 0
U1 1
U2 2
PU HINDAWI LTD
PI LONDON
PA ADAM HOUSE, 3RD FLR, 1 FITZROY SQ, LONDON, WIT 5HE, ENGLAND
SN 1687-6075
EI 1687-6083
J9 SCI TECHNOL NUCL INS
JI Sci. Technol. Nucl. Install.
PY 2015
AR 839249
DI 10.1155/2015/839249
PG 17
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA CP1ID
UT WOS:000359628600001
ER
PT J
AU Fan, LL
Wang, HR
Lai, WL
Wang, C
AF Fan, Linlin
Wang, Hongrui
Lai, Wenli
Wang, Cheng
TI Administration of water resources in Beijing: problems and
countermeasures
SO WATER POLICY
LA English
DT Article
DE Beijing; Management; System; Water resources
ID CHINA; MANAGEMENT; URBANIZATION; CHALLENGES
AB It is well recognized that climatic variability and human activities are resulting in severe water scarcity in China, especially in the mega city Beijing; one important issue is how to manage water resources in order to tackle this situation. This paper assesses the implementation of the Strictest Administration of Water Resources in Beijing, which was issued by the State Council of China in 2012. The assessment is threefold: (a) analysis of water consumption conditions in Beijing, (b) analysis of water resources management systems in Beijing, and (c) existing problems in the current water management system. Our study suggests that Beijing needs to focus more on improving the building of water resources management agencies, taking effective economic measures, strengthening law construction, developing advanced techniques for water-saving, and strengthening the building of a water-saving culture.
C1 [Fan, Linlin; Wang, Hongrui; Lai, Wenli] Beijing Normal Univ, Key Lab Water & Sediment Sci, Coll Water Sci, Minist Educ, Beijing 100875, Peoples R China.
[Wang, Cheng] Argonne Natl Lab, Environm Sci Div, Lemont, IL 60439 USA.
RP Wang, HR (reprint author), Beijing Normal Univ, Key Lab Water & Sediment Sci, Coll Water Sci, Minist Educ, 19 Xinjiekouwai St, Beijing 100875, Peoples R China.
EM henrywang@bnu.edu.cn
FU National Natural Science Foundation of China [51279006, 51479003]
FX This study was supported by the National Natural Science Foundation of
China (Grant Nos 51279006 and 51479003). The authors would like to thank
all the anonymous reviewers for their valuable comments and constructive
suggestions, which led to the improvement of the presentation of this
paper.
NR 41
TC 1
Z9 1
U1 11
U2 22
PU IWA PUBLISHING
PI LONDON
PA ALLIANCE HOUSE, 12 CAXTON ST, LONDON SW1H0QS, ENGLAND
SN 1366-7017
J9 WATER POLICY
JI Water Policy
PY 2015
VL 17
IS 4
BP 563
EP 580
DI 10.2166/wp.2014.407
PG 18
WC Water Resources
SC Water Resources
GA CO8BA
UT WOS:000359388300001
ER
PT S
AU Roberts, CD
AF Roberts, Crag D.
GP IOP
TI Hadron Physics and QCD: Just the Basic Facts
SO XXXVII BRAZILIAN MEETING ON NUCLEAR PHYSICS
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 37th Brazilian Meeting on Nuclear Physics (XXXVII RTFNB)
CY SEP 08-12, 2014
CL Sao Paulo, BRAZIL
ID PION FORM-FACTOR; QUANTUM CHROMODYNAMICS; ASYMPTOTIC FREEDOM; SUM-RULES;
EXCLUSIVE PROCESSES; PERTURBATION-THEORY; SYMMETRY-BREAKING; SCALING
LAWS; NUCLEON; CONFINEMENT
AB With discovery of the Higgs boson, the Standard Model of Particle Physics became complete. Its formulation is a remarkable story; and the process of verification is continuing, with the most important chapter being the least well understood. Quantum Chromodynamics (QCD) is that part of the Standard Model which is supposed to describe all of nuclear physics and yet, almost fifty years after the discovery of quarks, we are only just beginning to understand how QCD moulds the basic bricks for nuclei: pious, neutrons, protons. QCD is characterized by two emergent phenomena: confinement and dynamical chiral symmetry breaking (DCSB), whose implications are extraordinary. This contribution describes how DCSB, not the Higgs boson, generates more than 98% of the visible mass in the Universe, explains why confinement guarantees that condensates, those quantities that were commonly viewed as constant mass-scales that fill all spacetime, are instead wholly contained within hadrons, and elucidates a range of observable consequences of confinement and DCSB whose measurement is the focus of a vast international experimental programme.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Roberts, CD (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
EM cdroberts@anl.gov
NR 106
TC 7
Z9 7
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 630
AR 012051
DI 10.1088/1742-6596/630/1/012051
PG 15
WC Physics, Nuclear
SC Physics
GA BD3AZ
UT WOS:000359434100051
ER
PT S
AU Sen, A
Gerhard, J
Torrieri, G
Read, K
Wong, CY
AF Sen, Abhisek
Gerhard, Jochen
Torrieri, Giorgio
Read, Kenneth
Wong, Cheuk-Yin
GP IOP
TI Hydrodynamics from Landau initial conditions
SO XXXVII BRAZILIAN MEETING ON NUCLEAR PHYSICS
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 37th Brazilian Meeting on Nuclear Physics (XXXVII RTFNB)
CY SEP 08-12, 2014
CL Sao Paulo, BRAZIL
ID QUARK-GLUON PLASMA; RELATIVISTIC HYDRODYNAMICS; PARTON-MODEL; COLLISIONS
AB We investigate ideal hydrodynamic evolution, with Landau initial conditions, both in a semi-analytical 1+1D approach and in a numerical code incorporating event-by-event variation with many events and transverse density inhomogeneities. The object of the calculation is to test how fast would a Landau initial condition transition to a commonly used boost-invariant expansion. We show that the transition to boost-invariant flow occurs too late for realistic setups, with corrections of O (20 - 30%) expected at freezeout for most scenarios. Moreover, the deviation from boost-invariance is correlated with both transverse flow and elliptic flow, with the more highly transversely flowing regions also showing the most violation of boost invariance. Therefore, if longitudinal flow is not fully developed at the early stages of heavy ion collisions, 2+1 dimensional hydrodynamics is inadequate to extract transport coefficients of the quark-gluon plasma. Based on [1, 2]
C1 [Sen, Abhisek; Read, Kenneth] Univ Tennessee, Knoxville, TN 37996 USA.
[Gerhard, Jochen] FIAS, Frankfurt, Germany.
[Torrieri, Giorgio] Univ Estadual Campinas, IFGW, Sao Paulo, Brazil.
[Read, Kenneth; Wong, Cheuk-Yin] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Sen, A (reprint author), Univ Tennessee, Knoxville, TN 37996 USA.
EM torrieri@ifi.unicamp.br
RI Sen, Abhisek/J-1157-2016;
OI Sen, Abhisek/0000-0003-1192-3938; Read, Kenneth/0000-0002-3358-7667
NR 36
TC 0
Z9 0
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 630
AR 012042
DI 10.1088/1742-6596/630/1/012042
PG 10
WC Physics, Nuclear
SC Physics
GA BD3AZ
UT WOS:000359434100042
ER
PT J
AU Zhou, T
Gao, Y
Zhu, JX
AF Zhou, Tao
Gao, Yi
Zhu, Jian-Xin
TI "Nodal Gap'' Induced by the Incommensurate Diagonal Spin Density
Modulation in Underdoped High-T-c Superconductors
SO ADVANCES IN CONDENSED MATTER PHYSICS
LA English
DT Article
ID QUASI-PARTICLE STATES; BI2SR2CACU2O8+DELTA; LA2-XSR(X)CUO4; PSEUDOGAP;
ORDER
AB Recently it was revealed that the whole Fermi surface is fully gapped for several families of underdoped cuprates. The existence of the finite energy gap along the d-wave nodal lines (nodal gap) contrasts the common understanding of the d-wave pairing symmetry, which challenges the present theories for the high-T-c superconductors. Here we propose that the incommensurate diagonal spin-density-wave order can account for the above experimental observation. The Fermi surface and the local density of states are also studied. Our results are in good agreement with many important experiments in high-T-c superconductors.
C1 [Zhou, Tao] Nanjing Univ Aeronaut & Astronaut, Coll Sci, Nanjing 210016, Jiangsu, Peoples R China.
[Gao, Yi] Nanjing Normal Univ, Dept Phys, Nanjing 210023, Jiangsu, Peoples R China.
[Gao, Yi] Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210023, Jiangsu, Peoples R China.
[Zhu, Jian-Xin] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Zhu, Jian-Xin] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
RP Zhou, T (reprint author), Nanjing Univ Aeronaut & Astronaut, Coll Sci, Nanjing 210016, Jiangsu, Peoples R China.
EM tzhou@nuaa.edu.cn
FU NSFC [11374005, 11204138]; NCET [NCET-12-0626]; NSF of Jiangsu Province
of China [BK2012450]; Jiangsu Qingnan Engineering project; U.S. DOE
Office of Basic Energy Sciences
FX This work was supported by the NSFC (Grants nos. 11374005 and 11204138),
the NCET (Grant no. NCET-12-0626), NSF of Jiangsu Province of China
(Grant no. BK2012450), Jiangsu Qingnan Engineering project, and U.S. DOE
Office of Basic Energy Sciences.
NR 38
TC 2
Z9 2
U1 1
U2 8
PU HINDAWI PUBLISHING CORP
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-8108
EI 1687-8124
J9 ADV COND MATTER PHYS
JI Adv. Condens. Matter Phys.
PY 2015
AR 652424
DI 10.1155/2015/652424
PG 8
WC Physics, Condensed Matter
SC Physics
GA CO1KW
UT WOS:000358914500001
ER
PT J
AU Nesvizhevsky, VV
Antoniadis, I
Baessler, S
Pignol, G
AF Nesvizhevsky, Valery V.
Antoniadis, Ignatios
Baessler, Stefan
Pignol, Guillaume
TI Quantum Gravitational Spectroscopy
SO ADVANCES IN HIGH ENERGY PHYSICS
LA English
DT Editorial Material
ID NEUTRONS; STATES; FIELD
C1 [Nesvizhevsky, Valery V.] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France.
[Antoniadis, Ignatios] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
[Baessler, Stefan] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA.
[Baessler, Stefan] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Pignol, Guillaume] Lab Phys Subatom & Cosmol IN2P3 UJF INPG, F-38000 Grenoble, France.
RP Nesvizhevsky, VV (reprint author), Inst Max Von Laue Paul Langevin, BP 156X, F-38042 Grenoble, France.
EM nesvizhevsky@ill.eu
NR 12
TC 0
Z9 0
U1 1
U2 4
PU HINDAWI PUBLISHING CORP
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-7357
EI 1687-7365
J9 ADV HIGH ENERGY PHYS
JI Adv. High. Energy Phys.
PY 2015
AR 467409
DI 10.1155/2015/467409
PG 2
WC Physics, Particles & Fields
SC Physics
GA CO5RT
UT WOS:000359216900001
ER
PT J
AU Fielding, MD
Chiu, JC
Hogan, RJ
Feingold, G
Eloranta, E
O'Connor, EJ
Cadeddu, MP
AF Fielding, M. D.
Chiu, J. C.
Hogan, R. J.
Feingold, G.
Eloranta, E.
O'Connor, E. J.
Cadeddu, M. P.
TI Joint retrievals of cloud and drizzle in marine boundary layer clouds
using ground-based radar, lidar and zenith radiances
SO ATMOSPHERIC MEASUREMENT TECHNIQUES
LA English
DT Article
ID LIQUID WATER PATH; STRATOCUMULUS CLOUDS; STRATUS CLOUD; MICROWAVE
RADIOMETER; SPATIAL VARIABILITY; STRATIFORM CLOUDS; EFFECTIVE RADIUS;
DOPPLER RADAR; DROPLET SIZE; RAIN RATE
AB Active remote sensing of marine boundary-layer clouds is challenging as drizzle drops often dominate the observed radar reflectivity. We present a new method to simultaneously retrieve cloud and drizzle vertical profiles in drizzling boundary-layer clouds using surface-based observations of radar reflectivity, lidar attenuated backscatter, and zenith radiances under conditions when precipitation does not reach the surface. Specifically, the vertical structure of droplet size and water content of both cloud and drizzle is characterised throughout the cloud. An ensemble optimal estimation approach provides full error statistics given the uncertainty in the observations. To evaluate the new method, we first perform retrievals using synthetic measurements from large-eddy simulation snapshots of cumulus under stratocumulus, where cloud water path is retrieved with an error of 31 g m(-2). The method also performs well in non-drizzling clouds where no assumption of the cloud profile is required. We then apply the method to observations of marine stratocumulus obtained during the Atmospheric Radiation Measurement MAGIC deployment in the Northeast Pacific. Here, retrieved cloud water path agrees well with independent three-channel microwave radiometer retrievals, with a root mean square difference of 10-20 g m(-2).
C1 [Fielding, M. D.; Chiu, J. C.; Hogan, R. J.; O'Connor, E. J.] Univ Reading, Dept Meteorol, Reading, Berks, England.
[Feingold, G.] NOAA Earth Syst Res Lab, Boulder, CO USA.
[Eloranta, E.] Univ Wisconsin, Ctr Space Sci & Engn, Madison, WI 53706 USA.
[O'Connor, E. J.] Finnish Meteorol Inst, FIN-00101 Helsinki, Finland.
[Cadeddu, M. P.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Fielding, MD (reprint author), Univ Reading, Dept Meteorol, Reading, Berks, England.
EM m.d.fielding@pgr.reading.ac.uk
RI Chiu, Christine/E-5649-2013; Hogan, Robin/M-6549-2016; Feingold,
Graham/B-6152-2009; Manager, CSD Publications/B-2789-2015
OI Chiu, Christine/0000-0002-8951-6913; Hogan, Robin/0000-0002-3180-5157;
FU Office of Science (BER), DOE [DE-SC0006933, DE-SC0007233, DE-SC0011666]
FX ARM data are made available online through the US Department of Energy
(DOE) as part of the Atmospheric Radiation Measurement Program at
http://www.archive.arm.gov. This research was supported by the Office of
Science (BER), DOE under grants DE-SC0006933, DE-SC0007233 and
DE-SC0011666. Huiwen Xue is thanked for producing the large eddy
simulations. The authors would like to thank Ernie Lewis and all those
involved in making MAGIC happen. We acknowledge Horizon Lines and the
Captain and crew of the Horizon Spirit for their and their hospitality,
and the AMF2 technicians who performed the measurements. In particular
we would like to thank David Troyan and Tami Toto for ship movement
correction and Laurie Gregory, Richard Wagener and Cimel Electronique
for their help with deploying the Cimel sun photometer on the ship.
NR 84
TC 3
Z9 3
U1 3
U2 9
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1867-1381
EI 1867-8548
J9 ATMOS MEAS TECH
JI Atmos. Meas. Tech.
PY 2015
VL 8
IS 7
BP 2663
EP 2683
DI 10.5194/amt-8-2663-2015
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CN9WA
UT WOS:000358799900003
ER
PT J
AU Heymann, J
Reuter, M
Hilker, M
Buchwitz, M
Schneising, O
Bovensmann, H
Burrows, JP
Kuze, A
Suto, H
Deutscher, NM
Dubey, MK
Griffith, DWT
Hase, F
Kawakami, S
Kivi, R
Morino, I
Petri, C
Roehl, C
Schneider, M
Sherlock, V
Sussmann, R
Velazco, VA
Warneke, T
Wunch, D
AF Heymann, J.
Reuter, M.
Hilker, M.
Buchwitz, M.
Schneising, O.
Bovensmann, H.
Burrows, J. P.
Kuze, A.
Suto, H.
Deutscher, N. M.
Dubey, M. K.
Griffith, D. W. T.
Hase, F.
Kawakami, S.
Kivi, R.
Morino, I.
Petri, C.
Roehl, C.
Schneider, M.
Sherlock, V.
Sussmann, R.
Velazco, V. A.
Warneke, T.
Wunch, D.
TI Consistent satellite XCO2 retrievals from SCIAMACHY and GOSAT using the
BESD algorithm
SO ATMOSPHERIC MEASUREMENT TECHNIQUES
LA English
DT Article
ID GASES OBSERVING SATELLITE; ATMOSPHERIC CO2; THIN CLOUDS; SPACE;
VALIDATION; CALIBRATION; MISSION; ERRORS; TCCON; CARBONTRACKER
AB Consistent and accurate long-term data sets of global atmospheric concentrations of carbon dioxide (CO2) are required for carbon cycle and climate-related research. However, global data sets based on satellite observations may suffer from inconsistencies originating from the use of products derived from different satellites as needed to cover a long enough time period. One reason for inconsistencies can be the use of different retrieval algorithms. We address this potential issue by applying the same algorithm, the Bremen Optimal Estimation DOAS (BESD) algorithm, to different satellite instruments, SCIAMACHY on-board ENVISAT (March 2002-April 2012) and TANSO-FTS onboard GOSAT (launched in January 2009), to retrieve XCO2, the column-averaged dry-air mole fraction of CO2. BESD has been initially developed for SCIAMACHY XCO2 retrievals. Here, we present the first detailed assessment of the new GOSAT BESD XCO2 product. GOSAT BESD XCO2 is a product generated and delivered to the MACC project for assimilation into ECMWF's Integrated Forecasting System. We describe the modifications of the BESD algorithm needed in order to retrieve XCO2 from GOSAT and present de-tailed comparisons with ground-based observations of XCO2 from the Total Carbon Column Observing Network (TCCON). We discuss detailed comparison results between all three XCO2 data sets (SCIAMACHY, GOSAT and TCCON). The comparison results demonstrate the good consistency between SCIAMACHY and GOSAT XCO2. For example, we found a mean difference for daily averages of -0.60 +/- 1.56 ppm (mean difference +/- standard deviation) for GOSAT-SCIAMACHY (linear correlation coefficient r = 0.82), -0.34 +/- 1.37 ppm (r = 0.86) for GOSAT-TCCON and 0.10 +/- 1.79 ppm (r = 0.75) for SCIAMACHY-TCCON. The remaining differences between GOSAT and SCIAMACHY are likely due to non-perfect collocation (+/- 2 h, 10 degrees x 10 degrees around TCCON sites), i.e. the observed air masses are not exactly identical but likely also due to a still non-perfect BESD retrieval algorithm, which will be continuously improved in the future. Our overarching goal is to generate a satellite-derived XCO2 data set appropriate for climate and carbon cycle research covering the longest possible time period. We therefore also plan to extend the existing SCIAMACHY and GOSAT data set discussed here by also using data from other missions (e.g. OCO-2, GOSAT-2, CarbonSat) in the future.
C1 [Heymann, J.; Reuter, M.; Hilker, M.; Buchwitz, M.; Schneising, O.; Bovensmann, H.; Burrows, J. P.; Deutscher, N. M.; Petri, C.; Warneke, T.] Univ Bremen, Inst Environm Phys IUP, D-28359 Bremen, Germany.
[Kuze, A.; Suto, H.; Kawakami, S.] Japan Aerosp Explorat Agcy JAXA, Tsukuba, Ibaraki, Japan.
[Dubey, M. K.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Deutscher, N. M.; Griffith, D. W. T.; Velazco, V. A.] Univ Wollongong, Ctr Atmospher Chem, Wollongong, NSW, Australia.
[Hase, F.; Schneider, M.] Karlsruhe Inst Technol, IMK ASF, D-76021 Karlsruhe, Germany.
[Kivi, R.] Finnish Meteorol Inst, Sodankyla, Finland.
[Morino, I.] Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan.
[Roehl, C.; Wunch, D.] CALTECH, Pasadena, CA 91125 USA.
[Sherlock, V.] Natl Inst Water & Atmospher Res, Wellington, New Zealand.
[Sussmann, R.] Karlsruhe Inst Technol, IMK IFU, Garmisch Partenkirchen, Germany.
RP Heymann, J (reprint author), Univ Bremen, Inst Environm Phys IUP, D-28359 Bremen, Germany.
EM heymann@iup.physik.uni-bremen.de
RI Morino, Isamu/K-1033-2014; Dubey, Manvendra/E-3949-2010; Velazco,
Voltaire/H-2280-2011; Reuter, Maximilian/L-3752-2014; KUZE,
AKIHIKO/J-2074-2016; Bovensmann, Heinrich/P-4135-2016; Schneider,
Matthias/B-1441-2013; Sussmann, Ralf/K-3999-2012; Burrows,
John/B-6199-2014
OI Morino, Isamu/0000-0003-2720-1569; Dubey, Manvendra/0000-0002-3492-790X;
Velazco, Voltaire/0000-0002-1376-438X; Reuter,
Maximilian/0000-0001-9141-3895; KUZE, AKIHIKO/0000-0001-5415-3377;
Bovensmann, Heinrich/0000-0001-8882-4108; Burrows,
John/0000-0002-6821-5580
FU EU FP7 (MACC-II); EU Horizon (MACC-III); ESA (GHG-CCI project); ESA
(Living Planet Fellowship project CARBOFIRES); state of Bremen;
University of Bremen
FX We thank JAXA, NIES and ESA for providing us with the GOSAT L1B and L2
IDS data. We are also grateful to Jonathan de Ferranti for the
development of the digital elevation model, which we used for our
evaluations. We thank TCCON for providing FTS XCO2 data
obtained from the TCCON Data Archive, operated by the California
Institute of Technology, from the website at
http://tccon.ipac.caltech.edu/. The CarbonTracker CT2013B results has
been provided by NOAA ESRL, Boulder, Colorado, USA, from the website at
http://carbontracker.noaa.gov. We thank NASA for providing us with the
ABSCOv4 tables and ECMWF for the meteorological data. This work has been
funded by the EU FP7 (MACC-II), EU Horizon 2020 (MACC-III), ESA (GHG-CCI
project and Living Planet Fellowship project CARBOFIRES) and the state
and the University of Bremen.
NR 54
TC 11
Z9 11
U1 2
U2 21
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1867-1381
EI 1867-8548
J9 ATMOS MEAS TECH
JI Atmos. Meas. Tech.
PY 2015
VL 8
IS 7
BP 2961
EP 2980
DI 10.5194/amt-8-2961-2015
PG 20
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CN9WA
UT WOS:000358799900022
ER
PT J
AU Rawlins, MA
McGuire, AD
Kimball, JS
Dass, P
Lawrence, D
Burke, E
Chen, X
Delire, C
Koven, C
MacDougall, A
Peng, S
Rinke, A
Saito, K
Zhang, W
Alkama, R
Bohn, TJ
Ciais, P
Decharme, B
Gouttevin, I
Hajima, T
Ji, D
Krinner, G
Lettenmaier, DP
Miller, P
Moore, JC
Smith, B
Sueyoshi, T
AF Rawlins, M. A.
McGuire, A. D.
Kimball, J. S.
Dass, P.
Lawrence, D.
Burke, E.
Chen, X.
Delire, C.
Koven, C.
MacDougall, A.
Peng, S.
Rinke, A.
Saito, K.
Zhang, W.
Alkama, R.
Bohn, T. J.
Ciais, P.
Decharme, B.
Gouttevin, I.
Hajima, T.
Ji, D.
Krinner, G.
Lettenmaier, D. P.
Miller, P.
Moore, J. C.
Smith, B.
Sueyoshi, T.
TI Assessment of model estimates of land-atmosphere CO2 exchange across
Northern Eurasia
SO BIOGEOSCIENCES
LA English
DT Article
AB A warming climate is altering land-atmosphere exchanges of carbon, with a potential for increased vegetation productivity as well as the mobilization of permafrost soil carbon stores. Here we investigate land-atmosphere carbon dioxide (CO2) cycling through analysis of net ecosystem productivity (NEP) and its component fluxes of gross primary productivity (GPP) and ecosystem respiration (ER) and soil carbon residence time, simulated by a set of land surface models (LSMs) over a region spanning the drainage basin of Northern Eurasia. The retrospective simulations cover the period 1960-2009 at 0.5 degrees resolution, which is a scale common among many global carbon and climate model simulations. Model performance benchmarks were drawn from comparisons against both observed CO2 fluxes derived from site-based eddy covariance measurements as well as regional-scale GPP estimates based on satellite remote-sensing data. The site-based comparisons depict a tendency for overestimates in GPP and ER for several of the models, particularly at the two sites to the south. For several models the spatial pattern in GPP explains less than half the variance in the MODIS MOD17 GPP product. Across the models NEP increases by as little as 0.01 to as much as 0.79 g Cm-2 yr(-2), equivalent to 3 to 340% of the respective model means, over the analysis period. For the multimodel average the increase is 135% of the mean from the first to last 10 years of record (1960-1969 vs. 2000-2009), with a weakening CO2 sink over the latter decades. Vegetation net primary productivity increased by 8 to 30% from the first to last 10 years, contributing to soil carbon storage gains. The range in regional mean NEP among the group is twice the multimodel mean, indicative of the uncertainty in CO2 sink strength. The models simulate that inputs to the soil carbon pool exceeded losses, resulting in a net soil carbon gain amid a decrease in residence time. Our analysis points to improvements in model elements controlling vegetation productivity and soil respiration as being needed for reducing uncertainty in land-atmosphere CO2 exchange. These advances will require collection of new field data on vegetation and soil dynamics, the development of benchmarking data sets from measurements and remote-sensing observations, and investments in future model development and intercomparison studies.
C1 [Rawlins, M. A.; Dass, P.] Univ Massachusetts, Climate Syst Res Ctr, Dept Geosci, Amherst, MA 01003 USA.
[McGuire, A. D.] Univ Alaska, US Geol Survey, Alaska Cooperat Fish & Wildlife Res Unit, Fairbanks, AK 99775 USA.
[Kimball, J. S.] Univ Montana, NTSG, Missoula, MT 59812 USA.
[Lawrence, D.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Burke, E.] Met Off Hadley Ctr, Exeter EX1 3PB, Devon, England.
[Chen, X.] Univ Washington, Dept Civil & Environm Engn, Seattle, WA 98195 USA.
[Delire, C.; Alkama, R.; Decharme, B.] CRNM GAME, Unite Mixte Rech CNRS Meteo France UMR 3589, F-31057 Toulouse, France.
[Koven, C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[MacDougall, A.] Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC, Canada.
[Peng, S.; Ciais, P.] CEA CNRS UVSQ, Lab Sci Climat & Environm, UMR8212, F-91191 Gif Sur Yvette, France.
[Rinke, A.; Ji, D.; Moore, J. C.] Beijing Normal Univ, Coll Global Change & Earth Syst Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China.
[Rinke, A.] Helmholtz Ctr Polar & Marine Res, Alfred Wegener Inst, Potsdam, Germany.
[Saito, K.; Hajima, T.; Sueyoshi, T.] Japan Agcy Marine Earth Sci & Technol, Dept Integrated Climate Change Project Res, Yokohama, Kanagawa, Japan.
[Zhang, W.; Miller, P.; Smith, B.] Lund Univ, Dept Phys Geog & Ecosyst Sci, SE-22362 Lund, Sweden.
[Bohn, T. J.] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ USA.
[Peng, S.; Gouttevin, I.; Krinner, G.] CNRS, F-38041 Grenoble, France.
[Peng, S.; Gouttevin, I.; Krinner, G.] Univ Grenoble Alpes, LGGE, F-38041 Grenoble, France.
[Gouttevin, I.] Irstea, UR HHLY, F-69626 Villeurbanne, France.
[Lettenmaier, D. P.] Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90024 USA.
[Sueyoshi, T.] Natl Inst Polar Res, Tachikawa, Tokyo, Japan.
RP Rawlins, MA (reprint author), Univ Massachusetts, Climate Syst Res Ctr, Dept Geosci, Amherst, MA 01003 USA.
EM rawlins@geo.umass.edu
RI Krinner, Gerhard/A-6450-2011; Moore, John/B-2868-2013; Rinke,
Annette/B-4922-2014; Lawrence, David/C-4026-2011; Peng,
Shushi/J-4779-2014; Smith, Benjamin/I-1212-2016; Koven,
Charles/N-8888-2014
OI Krinner, Gerhard/0000-0002-2959-5920; Moore, John/0000-0001-8271-5787;
Rinke, Annette/0000-0002-6685-9219; Lawrence, David/0000-0002-2968-3023;
Peng, Shushi/0000-0001-5098-726X; Smith, Benjamin/0000-0002-6987-5337;
Koven, Charles/0000-0002-3367-0065
FU US National Aeronautics and Space Administration NASA [NNX11AR16G];
Permafrost Carbon Network - National Science Foundation; Office of
Biological and Environmental Research, Office of Science, US Department
of Energy as part of the Regional and Global Climate Modeling Program
(RGCM) [DE-AC02-05CH11231]; UK DECC/Defra Met Office Hadley Centre
Climate Programme [GA01101]; European Union [282700]; French Agence
Nationale de la Recherche [ANR-10-CEPL-012-03]
FX This research was supported by the US National Aeronautics and Space
Administration NASA grant NNX11AR16G and the Permafrost Carbon Network
(http://www.permafrostcarbon.org/) funded by the National Science
Foundation. The MODIS Land Cover Type product data was obtained through
the online Data Pool at the NASA Land Processes Distributed Active
Archive Center (LP DAAC), USGS/Earth Resources Observation and Science
(EROS) Center, Sioux Falls, South Dakota
(https://lpdaac.usgs.gov/data_access). We thank Hans Dolman and a second
reviewer for their insightful comments which helped improve the
manuscript. We thank the researchers working at FLUXNET sites for making
available their CO2 flux data. We also thank Eugenie
Euskirchen and Dan Hayes for comments on an earlier version of the
manuscript, and Yonghong Yi for assistance with the FLUXNET data.
Charles Koven was supported by the Director of the Office of Biological
and Environmental Research, Office of Science, US Department of Energy,
under Contract DE-AC02-05CH11231 as part of the Regional and Global
Climate Modeling Program (RGCM). Eleanor J. Burke was supported by the
Joint UK DECC/Defra Met Office Hadley Centre Climate Programme (GA01101)
and the European Union Seventh Framework Programme (FP7/2007-2013) under
grant agreement no. 282700. Bertrand Decharme and Christine Delire were
supported by the French Agence Nationale de la Recherche under agreement
ANR-10-CEPL-012-03. Several of the authors were funded by the European
Union 7th Framework Programme under project Page21 (grant 282700). Any
use of trade, firm, or product names is for descriptive purposes only
and does not imply endorsement by the US Government.
NR 0
TC 7
Z9 7
U1 0
U2 21
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1726-4170
EI 1726-4189
J9 BIOGEOSCIENCES
JI Biogeosciences
PY 2015
VL 12
IS 14
BP 4385
EP 4405
DI 10.5194/bg-12-4385-2015
PG 21
WC Ecology; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA CN9WJ
UT WOS:000358800900014
ER
PT J
AU Hyeon, T
Manna, L
Wong, SS
AF Hyeon, Taeghwan
Manna, Liberato
Wong, Stanislaus S.
TI Sustainable nanotechnology
SO CHEMICAL SOCIETY REVIEWS
LA English
DT Editorial Material
C1 [Hyeon, Taeghwan] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151742, South Korea.
[Hyeon, Taeghwan] Inst Basic Sci IBS, Ctr Nanoparticle Res, Seoul 151742, South Korea.
[Manna, Liberato] Ist Italiano Tecnol, I-16163 Genoa, Italy.
[Manna, Liberato] Delft Univ Technol, Kavli Inst Nanosci, NL-2600 Delft, Netherlands.
[Wong, Stanislaus S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
[Wong, Stanislaus S.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
RP Hyeon, T (reprint author), Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151742, South Korea.
EM thyeon@snu.ac.kr; liberato.manna@iit.it; stanislaus.wong@stonybrook.edu
RI Manna, Liberato/G-2339-2010
OI Manna, Liberato/0000-0003-4386-7985
NR 1
TC 1
Z9 1
U1 3
U2 20
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0306-0012
EI 1460-4744
J9 CHEM SOC REV
JI Chem. Soc. Rev.
PY 2015
VL 44
IS 16
BP 5755
EP 5757
DI 10.1039/c5cs90072g
PG 3
WC Chemistry, Multidisciplinary
SC Chemistry
GA CO1DG
UT WOS:000358892500001
PM 26200931
ER
PT J
AU Scofield, ME
Liu, HQ
Wong, SS
AF Scofield, Megan E.
Liu, Haiqing
Wong, Stanislaus S.
TI A concise guide to sustainable PEMFCs: recent advances in improving both
oxygen reduction catalysts and proton exchange membranes
SO CHEMICAL SOCIETY REVIEWS
LA English
DT Review
ID METHANOL FUEL-CELLS; ENHANCED ELECTROCATALYTIC ACTIVITY; POLYMER
ELECTROLYTE MEMBRANES; METAL-ORGANIC FRAMEWORKS; POLY(ETHER ETHER
KETONE); ONE-POT SYNTHESIS; HIGH-TEMPERATURE; PLATINUM NANOPARTICLES;
COMPOSITE MEMBRANES; HYBRID MEMBRANE
AB The rising interest in fuel cell vehicle technology (FCV) has engendered a growing need and realization to develop rational chemical strategies to create highly efficient, durable, and cost-effective fuel cells. Specifically, technical limitations associated with the major constituent components of the basic proton exchange membrane fuel cell (PEMFC), namely the cathode catalyst and the proton exchange membrane (PEM), have proven to be particularly demanding to overcome. Therefore, research trends within the community in recent years have focused on (i) accelerating the sluggish kinetics of the catalyst at the cathode and (ii) minimizing overall Pt content, while simultaneously (a) maximizing activity and durability as well as (b) increasing membrane proton conductivity without causing any concomitant loss in either stability or as a result of damage due to flooding. In this light, as an example, high temperature PEMFCs offer a promising avenue to improve the overall efficiency and marketability of fuel cell technology. In this Critical Review, recent advances in optimizing both cathode materials and PEMs as well as the future and peculiar challenges associated with each of these systems will be discussed.
C1 [Scofield, Megan E.; Liu, Haiqing; Wong, Stanislaus S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
[Wong, Stanislaus S.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
RP Wong, SS (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
EM stanislaus.wong@stonybrook.edu
FU U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and
Engineering Division; U.S. Department of Energy [DE-AC02-98CH10886,
DE-SC00112704]
FX Research funding for all authors was provided by the U.S. Department of
Energy, Basic Energy Sciences, Materials Sciences and Engineering
Division, related to our studies, writing, and analyses conducted at
Brookhaven National Laboratory, which is supported by the U.S.
Department of Energy under Contract No. DE-AC02-98CH10886 and
DE-SC00112704. We thank Christopher Koenigsmann for helpful comments and
feedback.
NR 96
TC 30
Z9 30
U1 33
U2 143
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0306-0012
EI 1460-4744
J9 CHEM SOC REV
JI Chem. Soc. Rev.
PY 2015
VL 44
IS 16
BP 5836
EP 5860
DI 10.1039/c5cs00302d
PG 25
WC Chemistry, Multidisciplinary
SC Chemistry
GA CO1DG
UT WOS:000358892500007
PM 26119055
ER
PT J
AU Boyer, M
Veron, E
Becerro, AI
Porcher, F
Suchomel, MR
Matzen, G
Allix, M
AF Boyer, Marina
Veron, Emmanuel
Becerro, Ana Isabel
Porcher, Florence
Suchomel, Matthew R.
Matzen, Guy
Allix, Mathieu
TI BaGa4O7, a new A(3)BC(10)O(20) crystalline phase: synthesis, structural
determination and luminescence properties
SO CRYSTENGCOMM
LA English
DT Article
ID OXIDE-ION CONDUCTIVITY; FULL CRYSTALLIZATION; SYSTEM; GALLATE; GLASS;
NANOPARTICLES; TEMPERATURE; DIFFRACTION; REDUCTION; CERAMICS
AB The synthesis, structural determination and luminescence properties of a new barium gallate, BaGa4O7, are reported. This crystalline material can uniquely be obtained by direct cooling from the molten state. The crystallographic structure was determined using a combination of electron, synchrotron and neutron powder diffraction data. BaGa4O7 crystallizes in the monoclinic I2/m space group with a = 15.0688(1) angstrom, b = 11.7091(1) angstrom, c = 5.1429(2) angstrom and beta = 91.0452(2)degrees and can be described as an original member of the A(3)BC(10)O(20) family. Atypical for this A(3)BC(10)O(20) structural framework, BaGa4O7 is found to contain exclusively divalent and trivalent cations. In order to maintain overall electroneutrality, disordered defect-type partial substitution of gallium and oxygen ions on barium sites occurs within the pentagonal channels of BaGa4O7. Thanks to the flexibility of this structural framework, BaGa4O7 can be heavily doped with europium and thus is shown to exhibit strong orange-red luminescence emission at 618 nm under 393 nm excitation.
C1 [Boyer, Marina; Veron, Emmanuel; Matzen, Guy; Allix, Mathieu] Univ Orleans, CNRS, CEMHTI UPR 3079, F-45071 Orleans, France.
[Becerro, Ana Isabel] Inst Ciencia Mat Sevilla CSIC US, Seville 41092, Spain.
[Porcher, Florence] CEA Saclay, Lab Leon Brillouin CEA CNRS UMR12, F-91191 Gif Sur Yvette, France.
[Suchomel, Matthew R.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Boyer, M (reprint author), Univ Orleans, CNRS, CEMHTI UPR 3079, F-45071 Orleans, France.
EM mathieu.allix@cnrs-orleans.fr
RI VERON, Emmanuel/C-1825-2008; Allix, Mathieu/C-1679-2008; BECERRO, ANA
/K-3804-2014
OI Allix, Mathieu/0000-0001-9317-1316; BECERRO, ANA /0000-0003-2243-5438
FU French ANR [ANR-12-JS08-0002]; Spanish MEC project [MAT2011-23593]; U.S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
[DE-AC02-06CH11357]
FX The authors thank the French ANR for its financial support to the
project CrystOG ANR-12-JS08-0002, the Spanish MEC project MAT2011-23593
and the CRMD laboratory for TEM access. 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 no. DE-AC02-06CH11357. Neutron experiments were
performed at the Laboratoire Leon Brillouin in Saclay (France).
NR 49
TC 1
Z9 1
U1 1
U2 17
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1466-8033
J9 CRYSTENGCOMM
JI Crystengcomm
PY 2015
VL 17
IS 32
BP 6127
EP 6135
DI 10.1039/c5ce01101a
PG 9
WC Chemistry, Multidisciplinary; Crystallography
SC Chemistry; Crystallography
GA CO1LC
UT WOS:000358915300008
ER
PT J
AU Cuttler, JM
Feinendegen, LE
AF Cuttler, Jerry M.
Feinendegen, Ludwig E.
TI COMMENTARY ON INHALED (PUO2)-P-239 IN DOGS - A PROPHYLAXIS AGAINST LUNG
CANCER?
SO DOSE-RESPONSE
LA English
DT Article
DE plutonium-dioxide; inhalation; lung cancer; prophylaxis; radiation
hormesis; adaptive protection
ID PLUTONIUM DIOXIDE; RADIATION; (PUO2)-PU-239; IRRADIATION; EXPOSURE;
BEAGLES
AB Several studies on the effect of inhaled plutonium-dioxide particulates and the incidence of lung tumors in dogs reveal beneficial effects when the cumulative alpha-radiation dose is low. There is a threshold at an exposure level of about 100 cGy for excess tumor incidence and reduced lifespan. The observations conform to the expectations of the radiation hormesis dose-response model and contradict the predictions of the LNT hypothesis. These studies suggest investigating the possibility of employing low-dose alpha-radiation, such as from (PuO2)-Pu-239 inhalation, as a prophylaxis against lung cancer.
C1 [Cuttler, Jerry M.] Cuttler & Associates Inc, Worcester, MA USA.
[Feinendegen, Ludwig E.] Brookhaven Natl Lab, Biol Environm & Climate Sci, Upton, NY 11973 USA.
RP Cuttler, JM (reprint author), 1104-11 Townsgate Dr, Vaughan, ON L4J 8G4, Canada.
EM jerrycuttler@rogers.com
NR 20
TC 0
Z9 0
U1 2
U2 4
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 1559-3258
J9 DOSE-RESPONSE
JI Dose-Response
PD JAN-MAR
PY 2015
VL 13
IS 1
DI 10.2203/dose-response.15-003.Cuttler
PG 8
WC Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging;
Toxicology
SC Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging;
Toxicology
GA CO4RF
UT WOS:000359147600015
ER
PT J
AU Robinson, GL
Mills, GL
Lindell, AH
Schweitzer, SH
Hernandez, SM
AF Robinson, Gabrielle L.
Mills, Gary L.
Lindell, Angela H.
Schweitzer, Sara H.
Hernandez, Sonia M.
TI Exposure to mercury and Aroclor 1268 congeners in least terns (Sternula
antillarum) in coastal Georgia, USA
SO ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
LA English
DT Article
ID POLYCHLORINATED BIPHENYL CONGENERS; AMONG-CLUTCH VARIATION; CROWNED
NIGHT-HERONS; SUPERFUND SITE; ORGANOCHLORINE PESTICIDES; PARUS-MAJOR;
TRACE-ELEMENTS; WITHIN-CLUTCH; CLAPPER RAILS; COMMON TERNS
AB Concentrations of total mercury and the rare PCB mixture Aroclor 1268 in least terns (Sternula antillarum), a colonially-nesting, piscivorous seabird, in the Turtle River estuary and other coastal sites in Georgia, USA, were investigated. The Turtle River estuary is the location of the Linden Chemical Plant (LCP) Superfund site, a site prioritized by USA law for immediate remediation, where industries released effluent containing these contaminants until 1994. Aroclor 1268 is a highly-chlorinated PCB mixture that was used and released exclusively at the LCP site and nowhere else in the south eastern USA. High concentrations of Aroclor 1268 congeners and mercury have been documented in biota local to LCP, but no studies report concentrations in high trophic level, piscivorous birds such as least terns. We collected feathers and feces from chicks, and eggs from adults, at nesting colonies along the Georgia coast to analyze contaminant loads (in dry weight ppb). Mean Aroclor 1268 mixture concentrations in eggs (<= 16 329 ppb) were highest at colonies in and just outside LCP, and decreased with increasing distance (up to 110 km) from LCP, but the Aroclor 1268 signature congener mixture was present at all sites. Mercury concentrations in eggs (<= 3370 ppb), feathers (<= 5950 ppb), and feces (<= 417 ppb), were present at all sites, but did not vary significantly among sites. This report confirms the extensive dispersal of Aroclor 1268 congeners approximately 110 km north and 70 km south of its point source) via bioaccumulation and trophic transfer.
C1 [Robinson, Gabrielle L.; Hernandez, Sonia M.] Univ Georgia, Warnell Sch Nat Resources, Athens, GA 30602 USA.
[Robinson, Gabrielle L.] Cape Cod Natl Seashore, Wellfleet, MA USA.
[Mills, Gary L.; Lindell, Angela H.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC USA.
[Schweitzer, Sara H.] North Carolina Wildlife Resources Commiss, New Bern, NC USA.
[Hernandez, Sonia M.] Univ Georgia, Coll Vet Med, Southeastern Cooperat Wildlife Dis Study, Athens, GA USA.
RP Robinson, GL (reprint author), Univ Georgia, Warnell Sch Nat Resources, 180 E Green St, Athens, GA 30602 USA.
EM gabrielle_robinson@nps.gov; gmills@srel.uga.edu;
sara.schweitzer@ncwildlife.org; shernz@uga.edu
FU Department of Energy Office of Environmental Management
[DE-FC09-07SR22506]; Morris Animal Foundation; Georgia Ornithological
Society; Manomet Center for Conservation Sciences
FX We thank Tim Keyes of the Georgia Department of Natural Resources, Doug
Hoffman of Cumberland Island National Seashore, Steve Calver of the Army
Corps of Engineers, and all others who cooperated with us on this
project, often lending their time and invaluable local insight and
logistical support. We also are grateful for Sydney Sheedy and other
field staff for all their hard work and long hours in the field, Shelby
Weathersbee for help with PCB extractions and analysis, Nathaniel
Fletcher for assistance with Hg analysis, and the Morris Animal
Foundation, the Georgia Ornithological Society, and Manomet Center for
Conservation Sciences, for funding this research. This work was also
supported by the Department of Energy Office of Environmental Management
under Award Number DE-FC09-07SR22506.
NR 57
TC 2
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U1 0
U2 10
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7887
EI 2050-7895
J9 ENVIRON SCI-PROC IMP
JI Environ. Sci.-Process Impacts
PY 2015
VL 17
IS 8
BP 1424
EP 1432
DI 10.1039/c5em00183h
PG 9
WC Chemistry, Analytical; Environmental Sciences
SC Chemistry; Environmental Sciences & Ecology
GA CO4JU
UT WOS:000359127800009
PM 26166752
ER
PT J
AU Safta, C
Ricciuto, DM
Sargsyan, K
Debusschere, B
Najm, HN
Williams, M
Thornton, PE
AF Safta, C.
Ricciuto, D. M.
Sargsyan, K.
Debusschere, B.
Najm, H. N.
Williams, M.
Thornton, P. E.
TI Global sensitivity analysis, probabilistic calibration, and predictive
assessment for the data assimilation linked ecosystem carbon model
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID EDDY-COVARIANCE DATA; CHAIN MONTE-CARLO; COMPLEX-MODELS; FOREST;
ALGORITHMS; INVERSION; PARAMETER; INDEXES; CO2
AB In this paper we propose a probabilistic framework for an uncertainty quantification (UQ) study of a carbon cycle model and focus on the comparison between steady-state and transient simulation setups. A global sensitivity analysis (GSA) study indicates the parameters and parameter couplings that are important at different times of the year for quantities of interest (QoIs) obtained with the data assimilation linked ecosystem carbon (DALEC) model. We then employ a Bayesian approach and a statistical model error term to calibrate the parameters of DALEC using net ecosystem exchange (NEE) observations at the Harvard Forest site. The calibration results are employed in the second part of the paper to assess the predictive skill of the model via posterior predictive checks.
C1 [Safta, C.; Sargsyan, K.; Debusschere, B.; Najm, H. N.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Ricciuto, D. M.; Thornton, P. E.] Oak Ridge Natl Lab, Environm Sci Div, Oak Ridge, TN 37831 USA.
[Williams, M.] Univ Edinburgh, Sch GeoSci, Edinburgh EH9 EJN, Midlothian, Scotland.
[Williams, M.] Univ Edinburgh, Natl Ctr Earth Observat, Edinburgh EH9 EJN, Midlothian, Scotland.
RP Safta, C (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA.
EM csafta@sandia.gov
RI Thornton, Peter/B-9145-2012; Ricciuto, Daniel/I-3659-2016;
OI Thornton, Peter/0000-0002-4759-5158; Ricciuto,
Daniel/0000-0002-3668-3021; Williams, Mathew/0000-0001-6117-5208
FU Office of Biological and Environmental Research in the DOE Office of
Science; Scientific Discovery through Advanced Computing (SciDAC)
program - US DOE, Office of Science, Advanced Scientific Computing
Research; NERC National Centre for Earth Observation; US Department of
Energy's National Nuclear Security Administration [DE-AC04-94-AL85000];
UT-BATTELLE for DOE [DE-AC05-00OR22725]
FX This research was conducted by the Accelerated Climate Modeling for
Energy (ACME) project, supported by the Office of Biological and
Environmental Research in the DOE Office of Science. C. Safta
acknowledges partial support from the Scientific Discovery through
Advanced Computing (SciDAC) program funded by US DOE, Office of Science,
Advanced Scientific Computing Research. M. Williams was supported by
NERC National Centre for Earth Observation. Sandia National Laboratories
is amulti-program 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 DE-AC04-94-AL85000. Oak Ridge National Laboratory is managed by
UT-BATTELLE for DOE under contract DE-AC05-00OR22725.
NR 46
TC 0
Z9 0
U1 5
U2 8
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2015
VL 8
IS 7
BP 1899
EP 1918
DI 10.5194/gmd-8-1899-2015
PG 20
WC Geosciences, Multidisciplinary
SC Geology
GA CO1LQ
UT WOS:000358917100001
ER
PT J
AU Feldman, DR
Collins, WD
Paige, JL
AF Feldman, D. R.
Collins, W. D.
Paige, J. L.
TI Pan-spectral observing system simulation experiments of shortwave
reflectance and long-wave radiance for climate model evaluation
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID RADIATIVE-TRANSFER MODEL; INSTRUMENT SIMULATORS; TEMPERATURE TRENDS;
INFRARED-SPECTRA; CLOUD FEEDBACK; BUDGET; VARIABILITY; OBJECTIVES;
SCATTERING; PRODUCTS
AB Top-of-atmosphere (TOA) spectrally resolved shortwave reflectances and long-wave radiances describe the response of the Earth's surface and atmosphere to feedback processes and human-induced forcings. In order to evaluate proposed long-duration spectral measurements, we have projected 21st Century changes from the Community Climate System Model (CCSM3.0) conducted for the Intergovernmental Panel on Climate Change (IPCC) A2 Emissions Scenario onto shortwave reflectance spectra from 300 to 2500 nm and long-wave radiance spectra from 2000 to 200 cm 1 at 8 nm and 1 cm 1 resolution, respectively. The radiative transfer calculations have been rigorously validated against published standards and produce complementary signals describing the climate system forcings and feedbacks. Additional demonstration experiments were performed with the Model for Interdisciplinary Research on Climate (MIROC5) and Hadley Centre Global Environment Model version 2 Earth System (HadGEM2-ES) models for the Representative Concentration Pathway 8.5 (RCP8.5) scenario. The calculations contain readily distinguishable signatures of low clouds, snow/ice, aerosols, temperature gradients, and water vapour distributions. The goal of this effort is to understand both how climate change alters reflected solar and emitted infrared spectra of the Earth and determine whether spectral measurements enhance our detection and attribution of climate change. This effort also presents a path forward to understand the characteristics of hyperspectral observational records needed to confront models and inline instrument simulation. Such simulation will enable a diverse set of comparisons between model results from coupled model intercomparisons and existing and proposed satellite instrument measurement systems.
C1 [Feldman, D. R.; Collins, W. D.; Paige, J. L.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Collins, W. D.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
RP Feldman, DR (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
EM drfeldman@lbl.gov
RI Richards, Amber/K-8203-2015; Collins, William/J-3147-2014; Feldman,
Daniel/N-8703-2013
OI Collins, William/0000-0002-4463-9848; Feldman,
Daniel/0000-0003-3365-5233
FU NASA [NNX10AK27G, NNX11AE65G]; NASA High-End Computing [SMD-08-0999,
SMD-09-1397, SMD-10-1799]; Contractor Supporting Research (CSR) from
Berkeley Lab; U.S. Department of Energy [DE-AC02-05CH11231]
FX Funding for this research was supported by NASA grants NNX10AK27G, and
NNX11AE65G and NASA High-End Computing grants SMD-08-0999, SMD-09-1397,
and SMD-10-1799. This work was also supported by Contractor Supporting
Research (CSR) funding from Berkeley Lab, provided by the Director,
Office of Science, of the U.S. Department of Energy under contract no.
DE-AC02-05CH11231. The following individuals also contributed: David
Young, Bruce Wielicki, and Rosemary Baize of the NASA Langley Research
Center, Tsengdar Lee of the NASA Science Mission Directorate, Lex Berk
of Spectral Sciences, Inc., and four anonymous reviewers.
NR 55
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U1 1
U2 5
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2015
VL 8
IS 7
BP 1943
EP 1954
DI 10.5194/gmd-8-1943-2015
PG 12
WC Geosciences, Multidisciplinary
SC Geology
GA CO1LQ
UT WOS:000358917100003
ER
PT J
AU Collins, WD
Craig, AP
Truesdale, JE
Di Vittorio, AV
Jones, AD
Bond-Lamberty, B
Calvin, KV
Edmonds, JA
Kim, SH
Thomson, AM
Patel, P
Zhou, Y
Mao, J
Shi, X
Thornton, PE
Chini, LP
Hurtt, GC
AF Collins, W. D.
Craig, A. P.
Truesdale, J. E.
Di Vittorio, A. V.
Jones, A. D.
Bond-Lamberty, B.
Calvin, K. V.
Edmonds, J. A.
Kim, S. H.
Thomson, A. M.
Patel, P.
Zhou, Y.
Mao, J.
Shi, X.
Thornton, P. E.
Chini, L. P.
Hurtt, G. C.
TI The integrated Earth system model version 1: formulation and
functionality
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID LAND-COVER CHANGE; ANTHROPOGENIC CLIMATE-CHANGE; WOOD-HARVEST; SECONDARY
LANDS; USE TRANSITIONS; GLOBAL CLIMATE; CHANGE IMPACTS; WIND-SPEED;
ENERGY USE; FRAMEWORK
AB The integrated Earth system model (iESM) has been developed as a new tool for projecting the joint human/climate system. The iESM is based upon coupling an integrated assessment model (IAM) and an Earth system model (ESM) into a common modeling infrastructure. IAMs are the primary tool for describing the human-Earth system, including the sources of global greenhouse gases (GHGs) and short-lived species (SLS), land use and land cover change (LULCC), and other resource-related drivers of anthropogenic climate change. ESMs are the primary scientific tools for examining the physical, chemical, and biogeochemical impacts of human-induced changes to the climate system. The iESM project integrates the economic and human-dimension modeling of an IAM and a fully coupled ESM within a single simulation system while maintaining the separability of each model if needed. Both IAM and ESM codes are developed and used by large communities and have been extensively applied in recent national and international climate assessments. By introducing heretofore-omitted feed-backs between natural and societal drivers, we can improve scientific understanding of the human-Earth system dynamics. Potential applications include studies of the interactions and feedbacks leading to the timing, scale, and geographic distribution of emissions trajectories and other human influences, corresponding climate effects, and the subsequent impacts of a changing climate on human and natural systems. This paper describes the formulation, requirements, implementation, testing, and resulting functionality of the first version of the iESM released to the global climate community.
C1 [Collins, W. D.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Collins, W. D.; Craig, A. P.; Truesdale, J. E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Bond-Lamberty, B.; Calvin, K. V.; Edmonds, J. A.; Kim, S. H.; Thomson, A. M.; Patel, P.; Zhou, Y.] Joint Global Change Res Inst, College Pk, MD USA.
[Mao, J.; Shi, X.; Thornton, P. E.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Chini, L. P.; Hurtt, G. C.] Univ Maryland, College Pk, MD 20742 USA.
RP Collins, WD (reprint author), Univ Calif Berkeley, Berkeley, CA 94720 USA.
EM wdcollins@lbl.gov
RI Bond-Lamberty, Ben/C-6058-2008; Thornton, Peter/B-9145-2012; Jones,
Andrew/M-4363-2013; Di Vittorio, Alan/M-5325-2013; Collins,
William/J-3147-2014; Mao, Jiafu/B-9689-2012
OI Bond-Lamberty, Ben/0000-0001-9525-4633; Thornton,
Peter/0000-0002-4759-5158; Jones, Andrew/0000-0002-1913-7870; Di
Vittorio, Alan/0000-0002-8139-4640; Collins,
William/0000-0002-4463-9848; Mao, Jiafu/0000-0002-2050-7373
FU US Department of Energy [DE-AC02-05CH11231, DE-AC05-76RL01830]; National
Science Foundation; Integrated Assessment Research Program in the Office
of Science of the US Department of Energy (DOE SC-IARP); Office of
Biological and Environmental Research of the US Department of Energy;
UT-BATTELLE for the DOE [DE-AC05-00OR22725]
FX This research was supported in part by the Director, Office of Science,
Office of Biological and Environmental Research of the US Department of
Energy under contract no. DE-AC02-05CH11231 to the Lawrence Berkeley
National Laboratory as part of their Earth system modeling program. The
authors used resources of the National Energy Research Scientific
Computing Center (NERSC), also supported by the Office of Science of the
US Department of Energy, under contract no. DE-AC02-05CH11231. The CESM
project is supported by the National Science Foundation and the Office
of Science (BER) of the US Department of Energy. 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. NCAR is sponsored by
the National Science Foundation. The authors are also grateful for
research support provided by the Integrated Assessment Research Program
in the Office of Science of the US Department of Energy (DOE SC-IARP).
This research used Evergreen computing resources at the Pacific
Northwest National Laboratory's Joint Global Change Research Institute
at the University of Maryland in College Park, which is supported by DOE
SC-IARP. Pacific Northwest National Laboratory is operated by Battelle
for the US Department of Energy under contract DE-AC05-76RL01830. The
research was supported in part by support from the Office of Biological
and Environmental Research of the US Department of Energy extended to
the Oak Ridge National Laboratory. Oak Ridge National Laboratory is
managed by UT-BATTELLE for the DOE under Contract DE-AC05-00OR22725.
This research also used resources of the Oak Ridge Leadership Computing
Facility at the Oak Ridge National Laboratory, which is supported by the
Office of Science of the US Department of Energy under contract no.
DE-AC05-00OR22725. The views and opinions expressed in this paper are
those of the authors alone.
NR 66
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U1 1
U2 12
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2015
VL 8
IS 7
BP 2203
EP 2219
DI 10.5194/gmd-8-2203-2015
PG 17
WC Geosciences, Multidisciplinary
SC Geology
GA CO1LQ
UT WOS:000358917100017
ER
PT J
AU Rae, JGL
Hewitt, HT
Keen, AB
Ridley, JK
West, AE
Harris, CM
Hunke, EC
Walters, DN
AF Rae, J. G. L.
Hewitt, H. T.
Keen, A. B.
Ridley, J. K.
West, A. E.
Harris, C. M.
Hunke, E. C.
Walters, D. N.
TI Development of the Global Sea Ice 6.0 CICE configuration for the Met
Office Global Coupled model
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID THICKNESS DISTRIBUTION; CLIMATE MODEL; OCEAN; HADGEM3; SYSTEM; ENERGY
AB The new sea ice configuration GSI6.0, used in the Met Office global coupled configuration GC2.0, is described and the sea ice extent, thickness and volume are compared with the previous configuration and with observationally based data sets. In the Arctic, the sea ice is thicker in all seasons than in the previous configuration, and there is now better agreement of the modelled concentration and extent with the HadISST data set. In the Antarctic, a warm bias in the ocean model has been exacerbated at the higher resolution of GC2.0, leading to a large reduction in ice extent and volume; further work is required to rectify this in future configurations.
C1 [Rae, J. G. L.; Hewitt, H. T.; Keen, A. B.; Ridley, J. K.; West, A. E.; Harris, C. M.; Walters, D. N.] Met Off Hadley Ctr, Exeter EX1 3PB, Devon, England.
[Hunke, E. C.] Los Alamos Natl Lab, MS B216, Los Alamos, NM 87545 USA.
RP Rae, JGL (reprint author), Met Off Hadley Ctr, FitzRoy Rd, Exeter EX1 3PB, Devon, England.
EM jamie.rae@metoffice.gov.uk
OI Hewitt, Helene/0000-0001-7432-6001
FU Joint DECC/Defra Met Office Hadley Centre Climate Programme [GA01101]
FX We are grateful to Alison McLaren and Ed Blockley for useful comments on
earlier drafts of the manuscript. This work was supported by the Joint
DECC/Defra Met Office Hadley Centre Climate Programme (GA01101). We are
grateful to the reviewers for their useful comments, which led to
substantial improvements in this manuscript.
NR 35
TC 3
Z9 3
U1 3
U2 9
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2015
VL 8
IS 7
BP 2221
EP 2230
DI 10.5194/gmd-8-2221-2015
PG 10
WC Geosciences, Multidisciplinary
SC Geology
GA CO1LQ
UT WOS:000358917100018
ER
PT J
AU Mukarakate, C
McBrayer, JD
Evans, TJ
Budhi, S
Robichaud, DJ
Iisa, K
ten Dam, J
Watson, MJ
Baldwin, RM
Nimlos, MR
AF Mukarakate, Calvin
McBrayer, Josefine D.
Evans, Tabitha J.
Budhi, Sridhar
Robichaud, David J.
Iisa, Kristiina
ten Dam, Jeroen
Watson, Michael J.
Baldwin, Robert M.
Nimlos, Mark R.
TI Catalytic fast pyrolysis of biomass: the reactions of water and aromatic
intermediates produces phenols
SO GREEN CHEMISTRY
LA English
DT Article
ID HZSM-5 ZEOLITE CATALYST; FLUIDIZED-BED REACTOR; CRUDE BIO-OIL; MOLECULAR
CHARACTERIZATION; DIRECT HYDROXYLATION; REACTION-MECHANISMS; STEAM
PYROLYSIS; CANOLA OIL; CONVERSION; HYDROCARBONS
AB During catalytic upgrading over HZSM-5 of vapors from fast pyrolysis of biomass (ex situ CFP), water reacts with aromatic intermediates to form phenols that are then desorbed from the catalyst micropores and produced as products. We observe this reaction using real time measurement of products from neat CFP and with added steam. The reaction is confirmed when O-18-labeled water is used as the steam source and the labeled oxygen is identified in the phenol products. Furthermore, phenols are observed when cellulose pyrolysis vapors are reacted over the HZSM-5 catalyst in steam. This suggests that the phenols do not only arise from phenolic products formed during the pyrolysis of the lignin component of biomass; phenols are also formed by reaction of water molecules with aromatic intermediates formed during the transformation of all of the pyrolysis products. Water formation during biomass pyrolysis is involved in this reaction and leads to the common observation of phenols in products from neat CFP. Steam also reduces the formation of non-reactive carbon in the zeolite catalysts and decreases the rate of deactivation and the amount of measured "coke" on the catalyst. These CFP results were obtained in a flow microreactor coupled to a molecular beam mass spectrometer (MBMS), which allowed for real-time measurement of products and facilitated determination of the impact of steam during catalytic upgrading, complemented by a tandem micropyrolyzer connected to a GCMS for identification of the products.
C1 [Mukarakate, Calvin; Evans, Tabitha J.; Budhi, Sridhar; Robichaud, David J.; Iisa, Kristiina; Baldwin, Robert M.; Nimlos, Mark R.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA.
[McBrayer, Josefine D.] Univ New Mexico, Dept Chem & Biol Engn, Albuquerque, NM 87131 USA.
[ten Dam, Jeroen; Watson, Michael J.] Johnson Matthey Technol Ctr, Billingham TS23 1LB, Cleveland, England.
[Budhi, Sridhar] Colorado Sch Mines, Dept Chem & Geochem, Golden, CO 80401 USA.
RP Mukarakate, C (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, 15013 Denver West Pkwy, Golden, CO 80401 USA.
EM calvin.mukarakate@nrel.gov
RI Budhi, Sridhar/B-2157-2017
OI Budhi, Sridhar/0000-0003-2514-5161
FU U.S. Department of Energy's Bioenergy Technologies Office (DOE-BETO)
[DE-AC36-08GO28308]; National Renewable Energy Laboratory
FX This work was supported by the U.S. Department of Energy's Bioenergy
Technologies Office (DOE-BETO) Contract no. DE-AC36-08GO28308 with the
National Renewable Energy Laboratory and Johnson Matthey. JDM would like
to thank DOE, Office of Science's Science Undergraduate Laboratory
Internship program. The authors would like to thank Rui Katahira,
Matthew Yung, Robert Evans and Kellene McKinney for stimulating
discussions.
NR 73
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U1 5
U2 37
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9262
EI 1463-9270
J9 GREEN CHEM
JI Green Chem.
PY 2015
VL 17
IS 8
BP 4217
EP 4227
DI 10.1039/c5gc00805k
PG 11
WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
SC Chemistry; Science & Technology - Other Topics
GA CO1BG
UT WOS:000358887300015
ER
PT J
AU Sproles, EA
Leibowitz, SG
Reager, JT
Wigington, PJ
Famiglietti, JS
Patil, SD
AF Sproles, E. A.
Leibowitz, S. G.
Reager, J. T.
Wigington, P. J., Jr.
Famiglietti, J. S.
Patil, S. D.
TI GRACE storage-runoff hystereses reveal the dynamics of regional
watersheds
SO HYDROLOGY AND EARTH SYSTEM SCIENCES
LA English
DT Article
ID WESTERN UNITED-STATES; DATA ASSIMILATION SYSTEM; CLIMATE-CHANGE;
GROUNDWATER DEPLETION; OREGON CASCADES; SOIL-MOISTURE; RIVER-BASIN;
MOUNTAIN HYDROLOGY; SNOWPACK; MODEL
AB We characterize how regional watersheds function as simple, dynamic systems through a series of hysteresis loops using measurements from NASA's Gravity Recovery and Climate Experiment (GRACE) satellites. These loops illustrate the temporal relationship between runoff and terrestrial water storage in three regional-scale watersheds (> 150 000 km(2)) of the Columbia River Basin, USA and Canada. The shape and size of the hysteresis loops are controlled by the climate, topography, and geology of the watershed. The direction of the hystereses for the GRACE signals moves in opposite directions from the isolated groundwater hystereses. The subsurface water (soil moisture and groundwater) hystereses more closely resemble the storage-runoff relationship of a soil matrix. While the physical processes underlying these hystereses are inherently complex, the vertical integration of terrestrial water in the GRACE signal encapsulates the processes that govern the non-linear function of regional-scale watersheds. We use this process-based understanding to test how GRACE data can be applied prognostically to predict seasonal runoff (mean Nash-Sutcliffe Efficiency of 0.91) and monthly runoff during the low flow/high demand month of August (mean Nash-Sutcliffe Efficiency of 0.77) in all three watersheds. The global nature of GRACE data allows this same methodology to be applied in other regional-scale studies, and could be particularly useful in regions with minimal data and in trans-boundary watersheds.
C1 [Sproles, E. A.] US EPA, Natl Hlth & Environm Effects Res Lab, Oak Ridge Inst Sci & Technol, Corvallis, OR 97333 USA.
[Sproles, E. A.] Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA.
[Leibowitz, S. G.; Wigington, P. J., Jr.] US EPA, Natl Hlth & Environm Effects Res Lab, Corvallis, OR 97333 USA.
[Reager, J. T.; Famiglietti, J. S.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Patil, S. D.] Bangor Univ, Sch Environm Nat Resources & Geog, Bangor LL57 2UW, Gwynedd, Wales.
[Sproles, E. A.] Univ La Serena, Ctr Estudios Avanzados Zonas Aridas, La Serena 1305, Chile.
RP Sproles, EA (reprint author), US EPA, Natl Hlth & Environm Effects Res Lab, Oak Ridge Inst Sci & Technol, 200 SW 35th St, Corvallis, OR 97333 USA.
EM eric.sproles@gmail.com
RI Patil, Sopan/E-8497-2011;
OI Patil, Sopan/0000-0002-8575-5220; Sproles, Eric/0000-0003-1245-1653
FU NASA MEaSUREs Program; US Environmental Protection Agency
FX The authors would like to thank Matthew Rodell and Felix Landerer for
their expertise in understanding GRACE data during the initial stages of
the research. GRACE terrestrial data were processed by Sean Swenson,
supported by the NASA MEaSUREs Program, and are available at
http://grace.jpl.nasa.gov. The GLDAS and NLDAS data used in this study
were acquired as part of the mission of NASA's Earth Science Division
and archived and distributed by the Goddard Earth Sciences Data and
Information Services Center. We would like to thank the reviewers of the
manuscript that have helped improve its overall quality. Additionally,
Tim Kerr provided objective feedback and comments on the research
findings. The information in this document has been funded entirely by
the US Environmental Protection Agency, in part by an appointment to the
Internship/Research Participation Program at the Office of Research and
Development, U.S. Environmental Protection Agency, administered by the
Oak Ridge Institute for Science and Education through an interagency
agreement between the U.S. Department of Energy and EPA. This manuscript
has been subjected to Agency review and has been approved for
publication. Mention of trade names or commercial products does not
constitute endorsement or recommendation for use.
NR 75
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Z9 3
U1 4
U2 17
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1027-5606
EI 1607-7938
J9 HYDROL EARTH SYST SC
JI Hydrol. Earth Syst. Sci.
PY 2015
VL 19
IS 7
BP 3253
EP 3272
DI 10.5194/hess-19-3253-2015
PG 20
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA CO1MA
UT WOS:000358918200016
ER
PT J
AU Rivera, JGL
Lee, Y
Liao, JC
AF Rivera, Jimmy G. Lafontaine
Lee, Yun
Liao, James C.
TI An entropy-like index of bifurcational robustness for metabolic systems
SO INTEGRATIVE BIOLOGY
LA English
DT Article
ID SACCHAROMYCES-CEREVISIAE; BIOLOGICAL ROBUSTNESS; FRAMEWORK DEVELOPMENT;
MATHEMATICAL-THEORY; UNCERTAINTY; GLYCOLYSIS; YEAST; COMMUNICATION;
OSCILLATIONS; MODELS
AB Natural and synthetic metabolic pathways need to retain stability when faced against random changes in gene expression levels and kinetic parameters. In the presence of large parameter changes, a robust system should specifically avoid moving to an unstable region, an event that would dramatically change system behavior. Here we present an entropy-like index, denoted as S, for quantifying the bifurcational robustness of metabolic systems against loss of stability. We show that S enables the optimization of a metabolic model with respect to both bifurcational robustness and experimental data. We then demonstrate how the coupling of ensemble modeling and S enables us to discriminate alternative designs of a synthetic pathway according to bifurcational robustness. Finally, we show that S enables the identification of a key enzyme contributing to the bifurcational robustness of yeast glycolysis. The different applications of S demonstrated illustrate the versatile role it can play in constructing better metabolic models and designing functional non-native pathways.
C1 [Rivera, Jimmy G. Lafontaine; Lee, Yun; Liao, James C.] Univ Calif Los Angeles, Dept Chem & Biomol Engn, Los Angeles, CA 90095 USA.
[Liao, James C.] Univ Calif Los Angeles, DOE Inst Genom & Prote, Los Angeles, CA 90095 USA.
RP Liao, JC (reprint author), Univ Calif Los Angeles, Dept Chem & Biomol Engn, 5531 Boelter Hall, Los Angeles, CA 90095 USA.
EM liaoj@g.ucla.edu
FU National Science Foundation [MCB-1139318]; UCLA-DOE Institute for
Genomics and Proteomics; Office of Science (BER), U.S. Department of
Energy [DE-SC0012384, DE-SC0001060, DE-SC0008744]
FX This work was supported by National Science Foundation (MCB-1139318),
UCLA-DOE Institute for Genomics and Proteomics, and the Office of
Science (BER), U.S. Department of Energy (DE-SC0012384, DE-SC0001060 and
DE-SC0008744).
NR 33
TC 1
Z9 1
U1 4
U2 4
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1757-9694
EI 1757-9708
J9 INTEGR BIOL-UK
JI Integr. Biol.
PY 2015
VL 7
IS 8
BP 895
EP 903
DI 10.1039/c4ib00257a
PG 9
WC Cell Biology
SC Cell Biology
GA CO1LD
UT WOS:000358915500006
ER
PT S
AU Christian, J
Ho, C
AF Christian, J.
Ho, C.
BE Wang, Z
TI System design of a 1 MW north-facing, solid particle receiver
SO INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL
ENERGY SYSTEMS, SOLARPACES 2014
SE Energy Procedia
LA English
DT Proceedings Paper
CT International Conference on Concentrating Solar Power and Chemical
Energy Systems (SolarPACES)
CY SEP 16-19, 2014
CL Beijing, PEOPLES R CHINA
DE Solid Particle Receiver; high temperature receiver; falling particles
AB Falling solid particle receivers (SPR) utilize small particles as a heat collecting medium within a cavity receiver structure. The components required to operate an SPR include the receiver (to heat the particles), bottom hopper (to catch the falling particles), particle lift elevator (to lift particles back to the top of the receiver), top hopper (to store particles before being dropped through the receiver), and ducting. In addition to the required components, there are additional features needed for an experimental system. These features include: a support structure to house all components, calibration panel to measure incident radiation, cooling loops, and sensors (flux gages, thermocouples, pressure gages). Each of these components had to be designed to withstand temperatures ranging from ambient to 700 degrees C. Thermal stresses from thermal expansion become a key factor in these types of high temperature systems. The SPR will be housing similar to 3000 kg of solid particles. The final system will be tested at the National Solar Thermal Test Facility in Albuquerque, NM. (C) 2015 The Authors. Published by Elsevier Ltd.
C1 [Christian, J.; Ho, C.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Christian, J (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM jmchris@sandia.gov
NR 17
TC 0
Z9 0
U1 2
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1876-6102
J9 ENRGY PROCED
PY 2015
VL 69
BP 340
EP 349
DI 10.1016/j.egypro.2015.03.038
PG 10
WC Energy & Fuels
SC Energy & Fuels
GA BD2GX
UT WOS:000358735000037
ER
PT S
AU Gray, MH
Tirawat, R
Kessinger, KA
Ndione, PF
AF Gray, M. H.
Tirawat, R.
Kessinger, K. A.
Ndione, P. F.
BE Wang, Z
TI High temperature performance of high-efficiency, multi-layer solar
selective coatings for tower applications
SO INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL
ENERGY SYSTEMS, SOLARPACES 2014
SE Energy Procedia
LA English
DT Proceedings Paper
CT International Conference on Concentrating Solar Power and Chemical
Energy Systems (SolarPACES)
CY SEP 16-19, 2014
CL Beijing, PEOPLES R CHINA
DE concentrating solar power; solar absorber; solar selective absorber;
power tower; receiver coating
ID ABSORBERS
AB The roadmap to next-generation concentrating solar power plants anticipates a progression to central towers with operating temperatures in excess of 650 C. These higher temperatures are required to drive higher power-cycle efficiencies, resulting in lower cost energy. However, these conditions also place a greater burden on the materials making up the receiver. Any novel absorber material developed for next-generation receivers must be stable in air, cost effective, and survive thousands of heating and cooling cycles. The collection efficiency of a power tower plant can be increased if the energy absorbed by the receiver is maximized while the heat loss from the receiver to the environment is minimized. Thermal radiation losses can be significant (>7% annual energy loss) with receivers at temperatures above 650 degrees C. We present progress toward highly efficient and durable solar selective absorbers (SSAs) intended for operating temperatures from 650 degrees C to 1000 degrees C. Selective efficiency (rim) is defined as the energy retained by the absorber, accounting for both absorptance and emittance, relative to the energy incident on the surface. The low emittance layers of multilayer SSAs are binary compounds of refractory metals whose material properties indicate that coatings formed of these materials should be oxidation resistant in air to 800-1200 degrees C. On this basis, we initially developed a solar selective coating for parabolic troughs. This development has been successfully extended to meet the absorptance and emittance objectives for the more demanding, high temperature regime. We show advancement in coating materials, processing and designs resulting in the initial attainment of target efficiencies rhei > 0.91 for proposed tower conditions. Additionally, spectral measurements show that these coatings continue to perform at targeted levels after cycling to temperatures of 1000 degrees C in environments of nitrogen and forming gas. (C) 2015 The Authors. Published by Else \ ier Ltd.
C1 [Gray, M. H.; Tirawat, R.; Kessinger, K. A.; Ndione, P. F.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Gray, MH (reprint author), Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA.
EM matthew.gray@nrel.gov
NR 10
TC 0
Z9 0
U1 2
U2 12
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1876-6102
J9 ENRGY PROCED
PY 2015
VL 69
BP 398
EP 404
DI 10.1016/j.egypro.2015.03.046
PG 7
WC Energy & Fuels
SC Energy & Fuels
GA BD2GX
UT WOS:000358735000043
ER
PT S
AU Ho, CK
Pacheco, JE
AF Ho, C. K.
Pacheco, J. E.
BE Wang, Z
TI Derivation of a Levelized Cost of Coating (LCOC) metric for evaluation
of solar selective absorber materials
SO INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL
ENERGY SYSTEMS, SOLARPACES 2014
SE Energy Procedia
LA English
DT Proceedings Paper
CT International Conference on Concentrating Solar Power and Chemical
Energy Systems (SolarPACES)
CY SEP 16-19, 2014
CL Beijing, PEOPLES R CHINA
DE Selective coating; selective absorber; LCOE; receivers
AB A new metric, the Levelized Cost of Coating (LCOC), is derived in this paper to evaluate and compare alternative solar selective absorber coatings against a baseline coating (Pyromark 2500). In contrast to previous metrics that focused only on the optical performance of the coating, the LCOC includes costs, durability, and optical performance for more comprehensive comparisons among candidate materials. The LCOC is defined as the annualized marginal cost of the coating to produce a baseline annual thermal energy production. Costs include the cost of materials and labor for initial application and reapplication of the coating, as well as the cost of additional or fewer heliostats to yield the same annual thermal energy production as the baseline coating. Results show that important factors impacting the LCOC include the initial solar absorptance, thermal emittance, reapplication interval, degradation rate, reapplication cost, and downtime during reapplication. The LCOC can also be used to determine the optimal reapplication interval to minimize the levelized cost of energy production. Similar methods can be applied more generally to determine the levelized cost of component for other applications and systems. (C) 2015 The Authors. Published by Elsevier Ltd.
C1 [Ho, C. K.; Pacheco, J. E.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Ho, CK (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM ckho@sandia.gov
NR 8
TC 0
Z9 0
U1 1
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1876-6102
J9 ENRGY PROCED
PY 2015
VL 69
BP 415
EP 423
DI 10.1016/j.egypro.2015.03.048
PG 9
WC Energy & Fuels
SC Energy & Fuels
GA BD2GX
UT WOS:000358735000045
ER
PT S
AU Andraka, CE
Kruizenga, AM
Hernandez-Sanchez, BA
Coker, EN
AF Andraka, C. E.
Kruizenga, A. M.
Hernandez-Sanchez, B. A.
Coker, E. N.
BE Wang, Z
TI Metallic phase change material thermal storage for dish Stirling
SO INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL
ENERGY SYSTEMS, SOLARPACES 2014
SE Energy Procedia
LA English
DT Proceedings Paper
CT International Conference on Concentrating Solar Power and Chemical
Energy Systems (SolarPACES)
CY SEP 16-19, 2014
CL Beijing, PEOPLES R CHINA
DE CSP; Dish Stirling; Phase change storage; Heat pipe; Concentrating Solar
Power
ID EUTECTIC ALLOYS
AB Dish-Stirling systems provide high-efficiency solar-only electrical generation and currently hold the world record at 31.25%. This high efficiency results in a system with a high possibility of meeting the DOE SunShot goal of S0.06/1(Wh. However, current dish-Stirling systems do not incorporate thermal storage. For the next generation of non-intermittent and cost-competitive solar power plants, we propose adding a thermal energy storage system that combines latent (phase-change) energy transport and latent energy storage in order to match the isothermal input requirements of Stirling engines while also maximizing the exergetic efficiency of the entire system.
This paper reports current findings in the area of selection, synthesis and evaluation of a suitable high performance metallic phase change material (PCM) as well as potential interactions with containment alloy materials. The metallic PCM's, while more expensive than salts, have been identified as having substantial performance advantages primarily due to high thermal conductivity, leading to high exergetic efficiency,. Systems modeling has indicated, based on high dish Stirling system performance, an allowable cost of the PCM storage system that is substantially- higher than SunShot goals for storage cost on tower systems. Several PCM's are identified with suitable melting temperature, cost, and performance. (C) 2015 Published by Elsevier Ltd.
C1 [Andraka, C. E.] Sandia Natl Labs, CSP Dept, Albuquerque, NM 87185 USA.
[Kruizenga, A. M.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Hernandez-Sanchez, B. A.; Coker, E. N.] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87185 USA.
RP Andraka, CE (reprint author), Sandia Natl Labs, CSP Dept, POB 5800,MS 1127, Albuquerque, NM 87185 USA.
EM ceandra@sandia.gov
NR 12
TC 3
Z9 3
U1 2
U2 14
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1876-6102
J9 ENRGY PROCED
PY 2015
VL 69
BP 726
EP 736
DI 10.1016/j.egypro.2015.03.083
PG 11
WC Energy & Fuels
SC Energy & Fuels
GA BD2GX
UT WOS:000358735000079
ER
PT S
AU Kim, T
Singh, D
Singh, M
AF Kim, T.
Singh, D.
Singh, M.
BE Wang, Z
TI Enhancement of oxidation resistance of graphite foams by polymer
derived-silicon carbide coating for concentrated solar power
applications
SO INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL
ENERGY SYSTEMS, SOLARPACES 2014
SE Energy Procedia
LA English
DT Proceedings Paper
CT International Conference on Concentrating Solar Power and Chemical
Energy Systems (SolarPACES)
CY SEP 16-19, 2014
CL Beijing, PEOPLES R CHINA
DE graphite foam; latent heat; thermal energy storage; polymer derived
coating; silicon carbide; oxidation
ID HIGH-CONDUCTIVITY PARTICLES; HEAT-TRANSFER; STORAGE UNIT; FINNED TUBE;
CARBON; BEHAVIOR; SOLIDIFICATION; TEMPERATURE; IMPROVEMENT
AB Graphite foam with extremely high thermal conductivity has been investigated to enhance heat transfer of latent heat thermal energy storage (LHTES) systems. However, the use of graphite foam for elevated temperature applications (>600 degrees C) due to poor oxidation resistance of graphite. In the present study, oxidation resistance of graphite foam coated with silicon carbide (SiC) was investigated. A pre-ceramic polymer derived coating (PDC) method was used to form a SiC coating on the graphite foams. Post coating deposition, the samples were analyzed by scanning electron microscopy and energy dispersive spectroscopy. The oxidation resistance of PDC-SiC coating was quantified by measuring the weight of the samples at several measuring points. The experiments were conducted under static argon atmosphere in a furnace. After the experiments, oxidation rates (%/hour) were calculated to predict the lifetime of the graphite foams. The experimental results showed that the PDC-SiC coating could prevent the oxidation of graphite foam under static argon atmosphere up to 900 degrees C. (C) 2015 Published by Elsevier Ltd.
C1 [Kim, T.; Singh, D.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
[Singh, M.] Ohio Aerosp Inst, Cleveland, OH 44142 USA.
RP Kim, T (reprint author), Argonne Natl Lab, Div Energy Syst, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 22
TC 2
Z9 2
U1 1
U2 9
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1876-6102
J9 ENRGY PROCED
PY 2015
VL 69
BP 900
EP 906
DI 10.1016/j.egypro.2015.03.170
PG 7
WC Energy & Fuels
SC Energy & Fuels
GA BD2GX
UT WOS:000358735000096
ER
PT S
AU Zheng, R
Diver, R
Caldwell, D
Fritz, B
Cameron, R
Humble, P
TeGrotenhuis, W
Dagle, R
Wegeng, R
AF Zheng, R.
Diver, R.
Caldwell, D.
Fritz, B.
Cameron, R.
Humble, P.
TeGrotenhuis, W.
Dagle, R.
Wegeng, R.
BE Wang, Z
TI Integrated solar thermochemical reaction system for steam methane
reforming
SO INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL
ENERGY SYSTEMS, SOLARPACES 2014
SE Energy Procedia
LA English
DT Proceedings Paper
CT International Conference on Concentrating Solar Power and Chemical
Energy Systems (SolarPACES)
CY SEP 16-19, 2014
CL Beijing, PEOPLES R CHINA
DE Concentrated Solar Power; Steam Reforming; Methane Reforming; Natural
Gas; Microchannel Reaction; Process Intensification
AB Solar-aided upgrade of the energy content of fossil fuels, such as natural gas, can provide a near-term transition path towards a future solar-fuel economy and reduce carbon dioxide emission from fossil fuel consumption. Both steam and dry reforming a methane-containing fuel stream have been studied with concentrated solar power as the energy input to drive the highly endothermic reactions but the concept has not been demonstrated at a commercial scale. Under a current project with the U.S. Department of Energy, PNNL is developing an integrated solar thermochemical reaction system that combines solar concentrators with micro-and meso-channel reactors and heat exchangers to accomplish more than 20% solar augment of methane higher heating value. The objective of our three-year project is to develop and prepare for commercialization such solar reforming system with a high enough efficiency to serve as the frontend of a conventional natural gas (or biogas) combined cycle power plant, producing power with a levelized cost of electricity less than 6(sic)/kWh, without subsidies, by the year 2020. In this paper, we present results from the first year of our project that demonstrated a solar-to-chemical energy conversion efficiency as high as 69% with a prototype reaction system. (C) 2015 The Authors. Published by Elsevier Ltd.
C1 [Zheng, R.; Caldwell, D.; Fritz, B.; Cameron, R.; Humble, P.; TeGrotenhuis, W.; Dagle, R.; Wegeng, R.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Diver, R.] Diver Solar LLC, Albuquerque, NM 87123 USA.
RP Wegeng, R (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM robert.wegeng@pnnl.gov
RI Humble, Paul/E-4766-2015; Zheng, Feng/C-7678-2009; Humble,
Paul/K-1961-2012
OI Zheng, Feng/0000-0002-5427-1303; Humble, Paul/0000-0002-2632-6557
NR 6
TC 1
Z9 2
U1 1
U2 11
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1876-6102
J9 ENRGY PROCED
PY 2015
VL 69
BP 1192
EP 1200
DI 10.1016/j.egypro.2015.03.204
PG 9
WC Energy & Fuels
SC Energy & Fuels
GA BD2GX
UT WOS:000358735000126
ER
PT S
AU Ho, CK
Sims, CA
Christian, JM
AF Ho, C. K.
Sims, C. A.
Christian, J. M.
BE Wang, Z
TI Evaluation of glare at the Ivanpah Solar Electric Generating System
SO INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL
ENERGY SYSTEMS, SOLARPACES 2014
SE Energy Procedia
LA English
DT Proceedings Paper
CT International Conference on Concentrating Solar Power and Chemical
Energy Systems (SolarPACES)
CY SEP 16-19, 2014
CL Beijing, PEOPLES R CHINA
DE Concentrating solar power; glare; glint; heliostats; standby; Ivanpah
solar
AB The Ivanpah Solar Electric Generating System (ISEGS), located on I-15 about 40 miles (60 km) south of Las Vegas, NV, consists of three power towers 459 ft (140 m) tall and over 170,000 reflective heliostats with a rated capacity of 390 MW. Reports of glare from the plant have been submitted by pilots and air traffic controllers and recorded by the Aviation Safety Reporting System and the California Energy Commission since 2013. Aerial and ground-based surveys of the glare were conducted in April, 2014, to identify the cause and to quantify the irradiance and potential ocular impacts of the glare. Results showed that the intense glare viewed from the airspace above ISEGS was caused by heliostats in standby mode that were aimed to the side of the receiver. Evaluation of the glare showed that the retinal irradiance and subtended source angle of the glare from the heliostats in standby were sufficient to cause significant ocular impact (potential for after-image) up to a distance of similar to 6 miles (10 km), but the values were below the threshold for permanent eye damage. Glare from the receivers had a low potential for after-image at all ground-based monitoring locations outside of the site boundaries. A Letter to Airmen has been issued by the Federal Aviation Administration to notify pilots of the potential glare hazards. Additional measures to mitigate the potential impacts of glare from ISGES are also presented and discussed. (C) 2015 The Authors. Published by Elsevier Ltd.
C1 [Ho, C. K.; Christian, J. M.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Sims, C. A.] Sims Ind LLC, Dayton, OH 45459 USA.
RP Ho, CK (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM ckho@sandia.gov
NR 9
TC 0
Z9 0
U1 2
U2 8
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1876-6102
J9 ENRGY PROCED
PY 2015
VL 69
BP 1296
EP 1305
DI 10.1016/j.egypro.2015.03.150
PG 10
WC Energy & Fuels
SC Energy & Fuels
GA BD2GX
UT WOS:000358735000137
ER
PT S
AU Ma, Z
Mehos, M
Glatzmaier, G
Sakadjian, BB
AF Ma, Z.
Mehos, M.
Glatzmaier, G.
Sakadjian, B. B.
BE Wang, Z
TI Development of a concentrating solar power system using fluidized-bed
technology for thermal energy conversion and solid particles for thermal
energy storage
SO INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL
ENERGY SYSTEMS, SOLARPACES 2014
SE Energy Procedia
LA English
DT Proceedings Paper
CT International Conference on Concentrating Solar Power and Chemical
Energy Systems (SolarPACES)
CY SEP 16-19, 2014
CL Beijing, PEOPLES R CHINA
DE Concentrating Solar Power; Solar Receiver; Heat Transfer Fluid;
Gas/Solid Two-Phase Flow
AB Concentrating solar power (CSP) is an effective way to convert solar energy into electricity with an economic energy-storage capability for grid-scale, dispatchable renewable power generation. However, CSP plants need to reduce costs to be competitive with other power generation methods. Two ways to reduce CSP cost are to increase solar-to-electric efficiency by supporting a high-efficiency power conversion system, and to use low-cost materials in the system. The current nitrate-based molten-salt systems have limited potential for cost reduction and improved power-conversion efficiency with high operating temperatures. Even with significant improvements in operating performance, these systems face challenges in satisfying the cost and performance targets. This paper introduces a novel CSP system with high-temperature capability that can be integrated into a high-efficiency CSP plant and that meets the low-cost, high-performance CSP targets. Unlike a conventional salt-based CSP plant, this design uses gas/solid, two-phase flow as the heat-transfer fluid (HTF); separated solid particles as storage media; and stable, inexpensive materials for the high-temperature receiver and energy storage containment. We highlight the economic and performance benefits of this innovative CSP system design, which has thermal energy storage capability for base-load power generation. (C) 2015 The Authors. Published by Elsevier Ltd.
C1 [Ma, Z.; Mehos, M.; Glatzmaier, G.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Sakadjian, B. B.] Babcock & Wilcox Power Generat Grp Inc, Barberton, OH 44203 USA.
RP Ma, Z (reprint author), Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA.
EM zhiwen.ma@nrel.gov
NR 11
TC 3
Z9 3
U1 2
U2 11
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1876-6102
J9 ENRGY PROCED
PY 2015
VL 69
BP 1349
EP 1359
DI 10.1016/j.egypro.2015.03.136
PG 11
WC Energy & Fuels
SC Energy & Fuels
GA BD2GX
UT WOS:000358735000143
ER
PT S
AU Sakadjian, B
Hu, S
Maryamchik, M
Flynn, T
Santelmann, K
Ma, Z
AF Sakadjian, B.
Hu, S.
Maryamchik, M.
Flynn, T.
Santelmann, K.
Ma, Z.
BE Wang, Z
TI Fluidized-bed technology enabling the integration of high temperature
solar receiver CSP systems with steam and advanced power cycles
SO INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL
ENERGY SYSTEMS, SOLARPACES 2014
SE Energy Procedia
LA English
DT Proceedings Paper
CT International Conference on Concentrating Solar Power and Chemical
Energy Systems (SolarPACES)
CY SEP 16-19, 2014
CL Beijing, PEOPLES R CHINA
DE Concentrating solar power; solar particle receiver; fluidized bed; heat
exchanger; solid particles; high temperature; high efficiency; renewable
energy
AB Solar Particle Receivers (SPR) are under development to drive concentrating solar plants (CSP) towards higher operating temperatures to support higher efficiency power conversion cycles. The novel high temperature SPR-based CSP system uses solid particles as the heat transfer medium (HTM) in place of the more conventional fluids such as molten salt or steam used in current state-of-the-art CSP plants. The solar particle receiver (SPR) is designed to heat the HTM to temperatures of 800 degrees C or higher which is well above the operating temperatures of nitrate-based molten salt thermal energy storage (TES) systems. The solid particles also help overcome some of the other challenges associated with molten salt-based systems such as freezing, instability and degradation. The higher operating temperatures and use of low cost HTM and higher efficiency power cycles are geared towards reducing costs associated with CSP systems. This paper describes the SPR-based CSP system with a focus on the fluidized-bed (FB) heat exchanger and its integration with various power cycles. The SPR technology provides a potential pathway to achieving the levelized cost of electricity (LCOE) target of $0.06/kWh that has been set by the U.S. Department of Energy's SunShot initiative. (C) 2015 Published by Elsevier Ltd.
C1 [Sakadjian, B.; Hu, S.; Maryamchik, M.; Flynn, T.; Santelmann, K.] Babcock & Wilcox Power Generat Grp Inc B&W PGG, Barberton, OH 44203 USA.
[Ma, Z.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Sakadjian, B (reprint author), Babcock & Wilcox Power Generat Grp Inc B&W PGG, 180 S Van Buren Ave, Barberton, OH 44203 USA.
EM bbsakadjian@babcock.com
NR 9
TC 3
Z9 3
U1 0
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1876-6102
J9 ENRGY PROCED
PY 2015
VL 69
BP 1404
EP 1411
DI 10.1016/j.egypro.2015.03.126
PG 8
WC Energy & Fuels
SC Energy & Fuels
GA BD2GX
UT WOS:000358735000148
ER
PT S
AU Ermanoski, I
AF Ermanoski, I.
BE Wang, Z
TI Maximizing efficiency in two-step solar-thermochemical fuel production
SO INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL
ENERGY SYSTEMS, SOLARPACES 2014
SE Energy Procedia
LA English
DT Proceedings Paper
CT International Conference on Concentrating Solar Power and Chemical
Energy Systems (SolarPACES)
CY SEP 16-19, 2014
CL Beijing, PEOPLES R CHINA
DE Hydrogen; thermochemical; solar fuels; carbon dioxide
ID THERMODYNAMIC PROPERTIES; NONSTOICHIOMETRIC CERIA; HYDROGEN-PRODUCTION;
WATER; ENERGY; OXIDE; HEAT; SYSTEM; CYCLE; CO2
AB Widespread solar fuel production depends on its economic viability, largely driven by the solar-to-fuel conversion efficiency. Herein, the material and energy requirements in two-step solar-thermochemical cycles are considered. The need for advanced redox active materials is demonstrated, by considering the oxide mass flow requirements at a large scale. Two approaches are also identified for maximizing the efficiency: optimizing reaction temperatures, and minimizing the pressure in the thermal reduction step by staged thermal reduction. The results show that each approach individually, and especially the two in conjunction, result in significant efficiency gains. (C) 2015 Published by Elsevier Ltd.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Ermanoski, I (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM iermano@sandia.gov
NR 35
TC 3
Z9 3
U1 1
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1876-6102
J9 ENRGY PROCED
PY 2015
VL 69
BP 1731
EP 1740
DI 10.1016/j.egypro.2015.03.141
PG 10
WC Energy & Fuels
SC Energy & Fuels
GA BD2GX
UT WOS:000358735000183
ER
PT S
AU Mehos, M
Jorgenson, J
Denholm, P
Turchi, C
AF Mehos, M.
Jorgenson, J.
Denholm, P.
Turchi, C.
BE Wang, Z
TI An assessment of the net value of CSP systems integrated with thermal
energy storage
SO INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL
ENERGY SYSTEMS, SOLARPACES 2014
SE Energy Procedia
LA English
DT Proceedings Paper
CT International Conference on Concentrating Solar Power and Chemical
Energy Systems (SolarPACES)
CY SEP 16-19, 2014
CL Beijing, PEOPLES R CHINA
DE concentrating solar power; power tower; thermal energy storage; grid
integration
AB Within this study, we evaluate the operational and capacity value-or total system value-for multiple concentrating solar power (CSP) plant configurations under an assumed 33% renewable penetration scenario in California. We calculate the first-year bid price for two CSP plants, including a 2013 molten-salt tower integrated with a conventional Rankine cycle and a hypothetical 2020 molten-salt tower system integrated with an advanced supercritical carbon-dioxide power block. The overall benefit to the regional grid, defined in this study as the net value, is calculated by subtracting the first-year bid price from the total system value.
Results of this study indicate a positive net value for a variety of scenarios, depending on technology assumptions and assumed values for natural gas price and tax incentives. We provide results for the 2013 and 2020 CSP configurations as a function of thermal energy storage capacity and solar field size. We provide a sensitivity of these results to natural gas price, which influence the operation value and thus the total system value. We also investigate the sensitivity of the net value to current and anticipated tax incentives. (C) 2015 The Authors. Published by Elsevier Ltd.
C1 [Mehos, M.; Jorgenson, J.; Denholm, P.; Turchi, C.] NREL, Golden, CO 80401 USA.
RP Mehos, M (reprint author), NREL, 15013 Denver West Ave, Golden, CO 80401 USA.
EM mark.mehos@nrel.gov
NR 20
TC 1
Z9 1
U1 2
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1876-6102
J9 ENRGY PROCED
PY 2015
VL 69
BP 2060
EP 2071
DI 10.1016/j.egypro.2015.03.219
PG 12
WC Energy & Fuels
SC Energy & Fuels
GA BD2GX
UT WOS:000358735000217
ER
PT J
AU Hanson, JC
Barwick, SW
Berg, EC
Besson, DZ
Duffin, TJ
Klein, SR
Kleinfelder, SA
Reed, C
Roumi, M
Stezelberger, T
Tatar, J
Walker, JA
Zou, L
AF Hanson, Jordan C.
Barwick, Steven W.
Berg, Eric C.
Besson, Dave Z.
Duffin, Thorin J.
Klein, Spencer R.
Kleinfelder, Stuart A.
Reed, Corey
Roumi, Mahshid
Stezelberger, Thorsten
Tatar, Joulien
Walker, James A.
Zou, Liang
TI Radar absorption, basal reflection, thickness and polarization
measurements from the Ross Ice Shelf, Antarctica
SO JOURNAL OF GLACIOLOGY
LA English
DT Article
DE ice/ocean interactions
ID DETECTOR; ARIANNA; ATTENUATION; NEUTRINOS; SHEET; FLOW; BED
AB Radio-glaciological parameters from the Moore's Bay region of the Ross Ice Shelf, Antarctica, have been measured. The thickness of the ice shelf in Moore's Bay was measured from reflection times of radio-frequency pulses propagating vertically through the shelf and reflecting from the ocean, and is found to be 576 +/- 8 m. Introducing a baseline of 543 7 m between radio transmitter and receiver allowed the computation of the basal reflection coefficient, R, separately from englacial loss. The depth-averaged attenuation length of the ice column, < L > is shown to depend linearly on frequency. The best fit (95% confidence level) is < L(nu)> = (460 +/- 20) - (180 +/- 40)nu m (20 dB km(-1)), for the frequencies nu = [0.100-0.850] GHz, assuming no reflection loss. The mean electric-field reflection coefficient is root R = 0.82 +/- 0.07 (1.7 dB reflection loss) across [0.100-0.850] GHz, and is used to correct the attenuation length. Finally, the reflected power rotated into the orthogonal antenna polarization is <5% below 0.400 GHz, compatible with air propagation. The results imply that Moore's Bay serves as an appropriate medium for the ARIANNA high-energy neutrino detector.
C1 [Hanson, Jordan C.; Barwick, Steven W.; Berg, Eric C.; Duffin, Thorin J.; Reed, Corey; Roumi, Mahshid; Tatar, Joulien; Walker, James A.; Zou, Liang] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
[Hanson, Jordan C.; Besson, Dave Z.] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA.
[Besson, Dave Z.] Moscow Phys & Engn Inst, Moscow, Russia.
[Klein, Spencer R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Kleinfelder, Stuart A.] Univ Calif Irvine, Dept Elect Engn & Comp Sci, Irvine, CA USA.
RP Hanson, JC (reprint author), Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
EM 918particle@gmail.com
FU Office of Polar Programs and Physics Division of the US National Science
Foundation [ANT-08339133, NSF-0970175, NSF-1126672]; US Department of
Energy [DE-AC-76SF-00098]
FX We thank the staff of Antarctic Support Contractors, Lockheed, Raytheon
Polar Services, and the entire crew at McMurdo station for excellent
logistical support. This work was supported by generous funding from the
Office of Polar Programs and Physics Division of the US National Science
Foundation, grant awards ANT-08339133, NSF-0970175 and NSF-1126672. In
2010, additional funding was provided through the US Department of
Energy under contract DE-AC-76SF-00098. Finally, we thank David
Saltzberg for comments and suggestions throughout the expeditions and
analysis.
NR 33
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U1 0
U2 0
PU INT GLACIOL SOC
PI CAMBRIDGE
PA LENSFIELD RD, CAMBRIDGE CB2 1ER, ENGLAND
SN 0022-1430
EI 1727-5652
J9 J GLACIOL
JI J. Glaciol.
PY 2015
VL 61
IS 227
BP 438
EP 446
DI 10.3189/2015JoG14J214
PG 9
WC Geography, Physical; Geosciences, Multidisciplinary
SC Physical Geography; Geology
GA CO2HS
UT WOS:000358977400003
ER
PT J
AU Kennedy, JH
Pettit, EC
AF Kennedy, Joseph H.
Pettit, Erin C.
TI The response of fabric variations to simple shear and migration
recrystallization
SO JOURNAL OF GLACIOLOGY
LA English
DT Article
DE anisotropic ice; climate change; ice crystal studies; ice rheology;
recrystallization
ID POLAR ICE SHEETS; C-AXIS FABRICS; DYNAMIC RECRYSTALLIZATION; SIPLE-DOME;
POLYCRYSTALLINE ICE; TEXTURE DEVELOPMENT; DEPTH-HOAR; FLOW-LAW;
ANTARCTICA; MICROSTRUCTURE
AB The observable microstructures in ice are the result of many dynamic and competing processes. These processes are influenced by climate variables in the firn. Layers deposited in different climate regimes may show variations in fabric which can persist deep into the ice sheet; fabric may 'remember' these past climate regimes. We model the evolution of fabric variations below the firn-ice transition and show that the addition of shear to compressive-stress regimes preserves the modeled fabric variations longer than compression-only regimes, because shear drives a positive feedback between crystal rotation and deformation. Even without shear, the modeled ice retains memory of the fabric variation for similar to 200 ka in typical polar ice-sheet conditions. Our model shows that temperature affects how long the fabric variation is preserved, but only affects the strain-integrated fabric evolution profile when comparing results straddling the thermal-activation-energy threshold (similar to-10 degrees C). Even at high temperatures, migration recrystallization does not eliminate the modeled fabric's memory under most conditions. High levels of nearest-neighbor interactions will, however, eliminate the modeled fabric's memory more quickly than low levels of nearest-neighbor interactions. Ultimately, our model predicts that fabrics will retain memory of past climatic variations when subject to a wide variety of conditions found in polar ice sheets.
C1 [Kennedy, Joseph H.] Oak Ridge Natl Lab, Computat Earth Sci Grp, Oak Ridge, TN 37831 USA.
[Kennedy, Joseph H.] Univ Alaska Fairbanks, Dept Phys, Fairbanks, AK USA.
[Pettit, Erin C.] Univ Alaska Fairbanks, Dept Geosci, Fairbanks, AK USA.
RP Kennedy, JH (reprint author), Oak Ridge Natl Lab, Computat Earth Sci Grp, Oak Ridge, TN 37831 USA.
EM kennedyjh@ornl.gov
OI Kenedy, Joseph/0000-0002-9348-693X
FU US National Science Foundation (NSF) [OPP#0948247, OPP#0940650,
OPP#0636795]
FX We thank the Scientific Editor Sergio H. Faria, Paul Duval and an
anonymous reviewer for detailed comments that considerably improved the
manuscript. We also thank Martin Truffer, Ed Bueler and Christina Carr
for help throughout the preparation of this manuscript. The work
presented here was supported by US National Science Foundation (NSF)
grants OPP#0948247, OPP#0940650 and OPP#0636795.
NR 55
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U1 2
U2 6
PU INT GLACIOL SOC
PI CAMBRIDGE
PA LENSFIELD RD, CAMBRIDGE CB2 1ER, ENGLAND
SN 0022-1430
EI 1727-5652
J9 J GLACIOL
JI J. Glaciol.
PY 2015
VL 61
IS 227
BP 537
EP 550
DI 10.3189/2015JoG14J156
PG 14
WC Geography, Physical; Geosciences, Multidisciplinary
SC Physical Geography; Geology
GA CO2HS
UT WOS:000358977400011
ER
PT J
AU Provino, A
Steinberg, S
Smetana, V
Kulkarni, R
Dhar, SK
Manfrinetti, P
Mudring, AV
AF Provino, Alessia
Steinberg, Simon
Smetana, Volodymyr
Kulkarni, Ruta
Dhar, Sudesh K.
Manfrinetti, Pietro
Mudring, Anja-Verena
TI Gold-rich R3Au7Sn3: establishing the interdependence between electronic
features and physical properties
SO JOURNAL OF MATERIALS CHEMISTRY C
LA English
DT Article
ID AU-GA SYSTEM; TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET;
CRYSTAL-STRUCTURE; RARE-EARTH; ZR3AL2-TYPE STRUCTURE; INTERMETALLIC
PHASES; QUASI-CRYSTAL; DIAMOND; FAMILY
AB Two new polar intermetallic compounds Y3Au7Sn3 (I) and Gd3Au7Sn3 (II) have been synthesized and their structures have been determined by single crystal X-ray diffraction (P6(3)/m; Z = 2, a = 8.148(1)/8.185(3), and c = 9.394(2)/9.415(3) for I/II, respectively). They can formally be assigned to the Cu10Sn3 type and consist of parallel slabs of Sn centered, edge-sharing trigonal Au-6 antiprisms connected through R-3 (R = Y, Gd) triangles. Additional Au atoms reside in the centres of trigonal Au-6 prisms forming Au@Au-6 clusters with Au-Au distances of 2.906-2.960 angstrom, while the R-R contacts in the R-3 groups are considerably larger than the sums of their metallic radii. These exclusive structural arrangements provide alluring systems to study the synergism between strongly correlated systems, particularly, those in the structure of (II), and extensive polar intermetallic contacts, which has been inspected by measurements of the magnetic properties, heat capacities and electrical conductivities of both compounds. Gd3Au7Sn3 shows an antiferromagnetic ordering at 13 K, while Y3Au7Sn3 is a Pauli paramagnet and a downward curvature in its electrical resistivity at about 1.9 K points to a superconducting transition. DFT-based band structure calculations on R3Au7Sn3 (R = Y, Gd) account for the results of the conductivity measurements and different spin ordering models of (II) provide conclusive hints about its magnetic structure. Chemical bonding analyses of both compounds indicate that the vast majority of bonding originates from the heteroatomic Au-Gd and Au-Sn interactions, while homoatomic Au-Au bonding is evident within the Au@Au-6 clusters.
C1 [Provino, Alessia; Steinberg, Simon; Smetana, Volodymyr; Manfrinetti, Pietro; Mudring, Anja-Verena] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA.
[Provino, Alessia; Manfrinetti, Pietro] Univ Genoa, Dept Chem, I-16146 Genoa, Italy.
[Steinberg, Simon; Smetana, Volodymyr; Mudring, Anja-Verena] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
[Kulkarni, Ruta; Dhar, Sudesh K.] Tata Inst Fundamental Res, Dept Condensed Matter Phys & Mat Sci, Bombay 400005, Maharashtra, India.
[Provino, Alessia; Manfrinetti, Pietro] CNR, Inst SPIN, I-16152 Genoa, Italy.
RP Mudring, AV (reprint author), Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA.
EM chimfis@chimica.unige.it; mudring@iastate.edu
RI Smetana, Volodymyr/C-1340-2015
FU Office of the Basic Energy Sciences, Materials Sciences Division, U. S.
Department of Energy (DOE); Critical Materials Institute, an Energy
Innovation Hub - U. S. Department of Energy, Office of Energy Efficiency
and Renewable Energy, Advanced Manufacturing Office; Department of
Materials Science and Engineering at Iowa State University; DOE
[DE-AC02-07CH11358]
FX This work was supported by the Office of the Basic Energy Sciences,
Materials Sciences Division, U. S. Department of Energy (DOE) and by the
Critical Materials Institute, an Energy Innovation Hub funded by the U.
S. Department of Energy, Office of Energy Efficiency and Renewable
Energy, Advanced Manufacturing Office as well as the Department of
Materials Science and Engineering at Iowa State University. The Ames
Laboratory is operated for DOE by Iowa State University under contract
No. DE-AC02-07CH11358. The authors would like to thank Prof. Maria Luisa
Fornasini and Prof. Karl A. Gschneidner Jr for their helpful comments.
NR 68
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U1 0
U2 9
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7526
EI 2050-7534
J9 J MATER CHEM C
JI J. Mater. Chem. C
PY 2015
VL 3
IS 32
BP 8311
EP 8321
DI 10.1039/c5tc00884k
PG 11
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA CO6KE
UT WOS:000359264800005
ER
PT J
AU Olynick, DL
Perera, P
Schwartzberg, A
Kulshreshta, P
De Oteyza, DG
Jarnagin, N
Henderson, C
Sun, ZW
Gunkel, I
Russell, T
Budden, M
Rangelow, IW
AF Olynick, Deirdre L.
Perera, Pradeep
Schwartzberg, Adam
Kulshreshta, Prashant
De Oteyza, Dimas G.
Jarnagin, Nathan
Henderson, Cliff
Sun, Zhiwei
Gunkel, Ilja
Russell, Thomas
Budden, Matthias
Rangelow, Ivo W.
TI Selective Laser Ablation in Resists and Block Copolymers for High
Resolution Lithographic Patterning
SO JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY
LA English
DT Article
DE block-copolymer; ablation; lithography
ID ETCH RESISTANCE; EXCIMER LASER; FILMS; RADIATION
AB Previously, we demonstrated an all dry, selective laser ablation development in methyl acetoxy calixarene (MAC6) which produced high resolution (15-25 nm half-pitch), high aspect ratio features not achievable with wet development. In this paper, we investigate the selective laser ablation process as a means to create a block copolymer derived lithographic pattern through the selective removal of one block. Two block copolymer systems were investigated PS-b-PHOST, and P2VP-b-PS-b-P2VP. The selective laser ablations process on block copolymers offers an alternative to plasma etching when plasma etching is not effective.
C1 [Olynick, Deirdre L.; Perera, Pradeep; Schwartzberg, Adam; Kulshreshta, Prashant; De Oteyza, Dimas G.] Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 95720 USA.
[Jarnagin, Nathan; Henderson, Cliff] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA.
[Jarnagin, Nathan; Henderson, Cliff] Georgia Inst Technol, Sch Chem Engn, Atlanta, GA 30332 USA.
[Sun, Zhiwei; Gunkel, Ilja; Russell, Thomas] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA.
[Sun, Zhiwei; Gunkel, Ilja; Russell, Thomas] Lawrence Berkeley Natl Lab, Berkeley, CA 95720 USA.
[Budden, Matthias; Rangelow, Ivo W.] Ilmenau Univ Technol, Inst Micro & Nanoelect, Dept Micro & Nanoelect Syst MNES, D-98693 Ilmenau, Germany.
RP Olynick, DL (reprint author), Lawrence Berkeley Natl Lab, Mol Foundry, 1 Cyclotron Rd, Berkeley, CA 95720 USA.
EM dlolynick@lbl.gov
RI Foundry, Molecular/G-9968-2014; de Oteyza, Dimas/H-5955-2013; perera,
pradeep/I-3112-2016;
OI de Oteyza, Dimas/0000-0001-8060-6819; Gunkel, Ilja/0000-0001-5738-5309
FU U.S. Department of Energy Office of Basic Energy Sciences
[DE-AC02-05CH11231]; U.S. Department of Energy BES
[BES-DE-FG02-96ER45612]; Seagate Technologies; Intel Corporation; German
National Academic Foundation; EuropeanUnion's Seventh. Framework
Programme for research, technological development and demonstration
[318804]
FX This team is greatly indebted to Dr. Mary Gilles of LBNL for use of the
Raman microscope. The ablation studies were funded by the U.S.
Department of Energy Office of Basic Energy Sciences, under contract
DE-AC02-05CH11231 (P.P., A. S., D. O., and D. G. O.). Work on the
PS-b-PVP-b-PS copolymers (Z. S. and T. P. R) was supported by the U.S.
Department of Energy BES under contract BES-DE-FG02-96ER45612 and by a
grant from Seagate Technologies. Part of this work was performed at the
Molecular Foundry which is supported by the U.S. Department of Energy
Office of Basic Energy Sciences, under contract DE-AC02-05CH11231.
PS-PHOST was provided by Henderson and Jarnigan with financial support
from Intel Corporation. We thank the German National Academic Foundation
for the generous financial support which made the research exchange of
Matthias Budden to the LBNL possible. In addition, I. Rangleow thanks,
the EuropeanUnion's Seventh. Framework Programme for research,
technological development and demonstration under Grant Agreement No.
[318804] [Single Nanometer Manufacturing for beyond CMOS devices (SNM)].
NR 22
TC 1
Z9 1
U1 0
U2 13
PU TECHNICAL ASSOC PHOTOPOLYMERS,JAPAN
PI CHIBA
PA CHIBA UNIV, FACULTY ENGINEERING, YAYOICHO, CHIBA, 263-8522, JAPAN
SN 0914-9244
J9 J PHOTOPOLYM SCI TEC
JI J. Photopolym Sci. Technol.
PY 2015
VL 28
IS 5
BP 663
EP 668
PG 6
WC Polymer Science
SC Polymer Science
GA CO0CL
UT WOS:000358817600010
ER
PT J
AU Colvin, RA
Lai, B
Holmes, WR
Lee, D
AF Colvin, Robert A.
Lai, Barry
Holmes, William R.
Lee, Daewoo
TI Understanding metal homeostasis in primary cultured neurons. Studies
using single neuron subcellular and quantitative metallomics
SO METALLOMICS
LA English
DT Article
ID X-RAY-FLUORESCENCE; GENETICALLY ENCODED SENSORS; CORTICAL-NEURONS;
NEURODEGENERATIVE DISORDERS; DOPAMINERGIC-NEURONS; TRANSITION-METALS;
ZN2+ HOMEOSTASIS; IRON; ZINC; MICROSCOPY
AB The purpose of this study was to demonstrate how single cell quantitative and subcellular metallomics inform us about both the spatial distribution and cellular mechanisms of metal buffering and homeostasis in primary cultured neurons from embryonic rat brain, which are often used as models of human disease involving metal dyshomeostasis. The present studies utilized synchrotron radiation X-ray fluorescence (SRXRF) and focused primarily on zinc and iron, two abundant metals in neurons that have been implicated in the pathogenesis of neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease. Total single cell contents for calcium, iron, zinc, copper, manganese, and nickel were determined. Resting steady state zinc showed a diffuse distribution in both soma and processes, best defined by the mass profile of the neuron with an enrichment in the nucleus compared with the cytoplasm. Zinc buffering and homeostasis was studied using two modes of cellular zinc loading transporter and ionophore (pyrithione) mediated. Single neuron zinc contents were shown to statistically significantly increase by either loading method - ionophore: 160 million to 7 billion; transporter 160 million to 280 million atoms per neuronal soma. The newly acquired and buffered zinc still showed a diffuse distribution. Soma and processes have about equal abilities to take up zinc via transporter mediated pathways. Copper levels are distributed diffusely as well, but are relatively higher in the processes relative to zinc levels. Prior studies have observed iron puncta in certain cell types, but others have not. In the present study, iron puncta were characterized in several primary neuronal types. The results show that iron puncta could be found in all neuronal types studied and can account for up to 50% of the total steady state content of iron in neuronal soma. Although other metals can be present in iron puncta, they are predominantly iron containing and do not appear to be associated with ferritin cages or transferrin receptor endosomes. The iron content and its distribution in puncta were similar in all neuron types studied including primary dopaminergic neurons. In summary, quantitative measurements of steady state metal levels in single primary cultured neurons made possible by SRXRF analyses provide unique information on the relative levels of each metal in neuronal soma and processes, subcellular location of zinc loads, and have confirmed and extended the characterization of heretofore poorly understood cytoplasmic iron puncta.
C1 [Colvin, Robert A.; Holmes, William R.; Lee, Daewoo] Ohio Univ, Dept Biol Sci, Athens, OH 45701 USA.
[Lai, Barry] Argonne Natl Lab, XRay Sci Div, Argonne, IL 60439 USA.
RP Colvin, RA (reprint author), Ohio Univ, Dept Biol Sci, Athens, OH 45701 USA.
EM colvin@ohio.edu
FU DOE Office of Science by Argonne National Laboratory
[DE-AC02-06CH11357]; Ohio University Research Committee (OURC); Baker
Fund Awards, Ohio University; Ohio Musculoskeletal and Neurological
Institute (OMNI); Korea Institute of Science and Technology (Brain
Science Institute), Seoul, Korea
FX The assistance of Dr Iain Miller, Department of Biological Sciences,
Ohio University, is greatly appreciated for sample preparation and image
capture for scanning electron microscopy. This research used resources
of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office
of Science User Facility operated for the DOE Office of Science by
Argonne National Laboratory under Contract No. DE-AC02-06CH11357. This
work was partially supported by Ohio University Research Committee
(OURC) and Baker Fund Awards, Ohio University (to RAC & DL), by the Ohio
Musculoskeletal and Neurological Institute (OMNI) and the Flagship Grant
from Korea Institute of Science and Technology (Brain Science
Institute), Seoul, Korea (to DL).
NR 42
TC 7
Z9 7
U1 16
U2 25
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1756-5901
EI 1756-591X
J9 METALLOMICS
JI Metallomics
PY 2015
VL 7
IS 7
BP 1111
EP 1123
DI 10.1039/c5mt00084j
PG 13
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA CO4MB
UT WOS:000359133800006
PM 25894020
ER
PT J
AU Gerber, LCH
Frischmann, PD
Williams, TE
Tichelaar, M
Tsai, EY
Liu, YS
Guo, JH
Pemmaraju, CD
Prendergast, D
Helms, BA
AF Gerber, Laura C. H.
Frischmann, Peter D.
Williams, Teresa E.
Tichelaar, Martijn
Tsai, Erica Y.
Liu, Yi-Sheng
Guo, Jinghua
Pemmaraju, C. D.
Prendergast, David
Helms, Brett A.
TI Chemical doping enhances electronic transport in networks of
hexabenzocoronenes assembled in non-aqueous electrolyte
SO POLYMER CHEMISTRY
LA English
DT Article
ID HEXA-PERI-HEXABENZOCORONENE; REDOX FLOW BATTERIES; SUPRAMOLECULAR
POLYMERS; CARBON NANOTUBES; ENERGY-STORAGE; SEMICONDUCTORS; DEVICES;
SURFACE
AB The charge-transporting ability of supramolecular polymer networks assembled from hexabenzocoronenes (HBCs) in nonaqueous electrolyte is reported here for the first time. Enhanced electronic conductivity is observed when the HBC subunits are chemically oxidized to radical cations, which is rationalized using density functional theory.
C1 [Gerber, Laura C. H.; Frischmann, Peter D.; Helms, Brett A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Joint Ctr Energy Storage Res, Berkeley, CA 94720 USA.
[Gerber, Laura C. H.; Frischmann, Peter D.; Williams, Teresa E.; Tichelaar, Martijn; Tsai, Erica Y.; Pemmaraju, C. D.; Prendergast, David; Helms, Brett A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
[Liu, Yi-Sheng; Guo, Jinghua] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Helms, BA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Joint Ctr Energy Storage Res, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
RI Foundry, Molecular/G-9968-2014;
OI Helms, Brett/0000-0003-3925-4174
FU Joint Center for Energy Storage Research, an Energy Innovation Hub -
U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences; Office of Science, Office of Basic Energy Sciences, of the U.
S. Department of Energy [DE-AC02-05CH11231]
FX This work was supported by the Joint Center for Energy Storage Research,
an Energy Innovation Hub funded by the U.S. Department of Energy, Office
of Science, Office of Basic Energy Sciences. Portions of the
work-including synthesis, structural characterization, and
electroanalytical characterization-were carried out as part of a user
project at the Molecular Foundry, which is supported by the Office of
Science, Office of Basic Energy Sciences, of the U. S. Department of
Energy under contract no. DE-AC02-05CH11231. XAS and XES measurements
were carried out on BL 8.0.1 at the Advanced Light Source, which is
supported by the Director, Office of Science, Office of Basic Energy
Sciences, of the U.S. Department of Energy under the same contract. We
thank Kevin Wujcik for assistance with EPR spectroscopy.
NR 42
TC 1
Z9 1
U1 2
U2 11
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1759-9954
EI 1759-9962
J9 POLYM CHEM-UK
JI Polym. Chem.
PY 2015
VL 6
IS 31
BP 5560
EP 5564
DI 10.1039/c5py00639b
PG 5
WC Polymer Science
SC Polymer Science
GA CN9KO
UT WOS:000358766800010
ER
PT J
AU Bornani, K
Wang, X
Davis, JL
Wang, XJ
Wang, WY
Hinestrosa, JP
Mays, JW
Kilbey, SM
AF Bornani, Kamlesh
Wang, Xu
Davis, Jesse L.
Wang, Xiaojun
Wang, Weiyu
Hinestrosa, Juan Pablo
Mays, Jimmy W.
Kilbey, S. Michael, II
TI Impact of chain microstructure on solution and thin film self-assembly
of PCHD-based semi-flexible/flexible diblock copolymers
SO SOFT MATTER
LA English
DT Article
ID ATOMIC-FORCE MICROSCOPY; BLOCK-COPOLYMERS; SOLVENT EVAPORATION; MICELLE
FORMATION; AQUEOUS-SOLUTION; MICELLIZATION; VESICLES; POLYMERIZATION;
AGGREGATION; MORPHOLOGY
AB Self-assembly of semi-flexible/flexible block copolymers in a selective solvent is examined using a set of diblock copolymers where the chain microstructure of the semi-flexible block is manipulated in order to tune chain stiffness. Conceptually, the reduced conformational space of the semi-flexible block is anticipated to alter the way the chains pack, potentially changing the structure of self-assembled aggregates in comparison to flexible diblock copolymer analogs. Semi-flexible/flexible diblock copolymers comprised of poly(styrene)-block-poly(1,3-cyclohexadiene) (PS-b-PCHD) having systematic changes in chain microstructure, as captured by the ratio of 1,4/1,2-linkages between cyclohexenyl repeat units, and molecular weight of the PCHD blocks were synthesized using anionic polymerization. These diblocks were dissolved in tetrahydrofuran (THF), which is a preferential solvent for PS, and the structures formed were examined using laser light scattering and complementary imaging techniques. Results show that PS-b-PCHD copolymers with a chain microstructure of 90% 1,4/10% 1,2 linkages between cyclohexenyl repeat units (referred to simply as 90/10) are able to micellize, forming spherical structures, while diblocks of 70/30 and 50/50 1,4-to-1,2 ratios remain as single chains and ill-defined aggregates, respectively, when dissolved in THF. With inferences drawn from simple structural models, we speculate that this self-assembly behavior arises due to the change in the chain configuration with increasing content of 1,2-links in the backbone. This renders the chain with higher 1,2 content incapable of swelling in response to solvent and unable to pack into well-defined self-assembled structures.
C1 [Bornani, Kamlesh; Wang, Xu; Davis, Jesse L.; Wang, Xiaojun; Wang, Weiyu; Mays, Jimmy W.; Kilbey, S. Michael, II] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Hinestrosa, Juan Pablo] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Kilbey, S. Michael, II] Univ Tennessee, Dept Chem & Biomol Engn, Knoxville, TN 37996 USA.
RP Kilbey, SM (reprint author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
EM mkilbey@utk.edu
RI Wang, Weiyu/A-6317-2016
OI Wang, Weiyu/0000-0002-2914-1638
FU Army Research Office [59668CH]
FX Support for this research from the Army Research Office (Award #59668CH)
is gratefully acknowledged. Access to the light scattering capabilities
was enabled by the user program of the Center for Nanophase Materials
Sciences, which is sponsored at Oak Ridge National Laboratory, by the
Department of Energy, Office of Science. This research also benefitted
from facilities available in the Advanced Microscopy and Imaging Center
at the University of Tennessee-Knoxville, and Dr. John Dunlap is
acknowledged for his assistance.
NR 43
TC 1
Z9 1
U1 2
U2 8
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
EI 1744-6848
J9 SOFT MATTER
JI Soft Matter
PY 2015
VL 11
IS 32
BP 6509
EP 6519
DI 10.1039/c5sm01245g
PG 11
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA CO4OC
UT WOS:000359139300017
PM 26186404
ER
PT S
AU Abdurachmanov, D
Bockelman, B
Elmer, P
Eulisse, G
Knight, R
Muzaffar, S
AF Abdurachmanov, David
Bockelman, Brian
Elmer, Peter
Eulisse, Giulio
Knight, Robert
Muzaffar, Shahzad
GP IOP
TI Heterogeneous High Throughput Scientific Computing with APM X-Gene and
Intel Xeon Phi
SO 16TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS
TECHNIQUES IN PHYSICS RESEARCH (ACAT2014)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Workshop on Advanced Computing and Analysis Techniques in
Physics Research (ACAT)
CY SEP 01-05, 2014
CL Czech Tech Univ, Fac Civil Engn, Prague, CZECH REPUBLIC
SP Western Digital, Brookhaven Natl Lab, Hewlett Packard, DataDirect Networks, M Comp, Bright Comp, Huawei, PDV Systemhaus
HO Czech Tech Univ, Fac Civil Engn
ID BOSON; LHC
AB Electrical power requirements will be a constraint on the future growth of Distributed High Throughput Computing (DHTC) as used by High Energy Physics. Performance-per-watt is a critical metric for the evaluation of computer architectures for cost-efficient computing. Additionally, future performance growth will come from heterogeneous, many-core, and high computing density platforms with specialized processors. In this paper, we examine the Intel Xeon Phi Many Integrated Cores (MIC) co-processor and Applied Micro X-Gene ARMv8 64-bit low-power server system-on-a-chip (SoC) solutions for scientific computing applications. We report our experience on software porting, performance and energy efficiency and evaluate the potential for use of such technologies in the context of distributed computing systems such as the Worldwide LHC Computing Grid (WLCG).
C1 [Abdurachmanov, David] Vilnius State Univ, Fac Math & Informat, Digital Sci & Comp Ctr, Vilnius, Lithuania.
[Bockelman, Brian] Univ Nebraska Lincoln, Lincoln, NE USA.
[Elmer, Peter] Princeton Univ, Dept Phys, Princeton, NJ 08540 USA.
[Eulisse, Giulio; Muzaffar, Shahzad] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Knight, Robert] Princeton Univ, Res Comp, Off Informat Technol, Princeton, NJ 08540 USA.
RP Abdurachmanov, D (reprint author), Vilnius State Univ, Fac Math & Informat, Digital Sci & Comp Ctr, Vilnius, Lithuania.
EM David.Abdurachmanov@cern.ch
NR 14
TC 2
Z9 2
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 608
AR 012033
DI 10.1088/1742-6596/608/1/012033
PG 9
WC Computer Science, Interdisciplinary Applications; Physics,
Multidisciplinary
SC Computer Science; Physics
GA BD1PA
UT WOS:000358218000033
ER
PT S
AU Abdurachmanov, D
Elmer, P
Eulisse, G
Knight, R
Niemi, T
Nurminen, JK
Nyback, F
Pestana, G
Ou, ZH
Khan, K
AF Abdurachmanov, David
Elmer, Peter
Eulisse, Giulio
Knight, Robert
Niemi, Tapio
Nurminen, Jukka K.
Nyback, Filip
Pestana, Goncalo
Ou, Zhonghong
Khan, Kashif
GP IOP
TI Techniques and tools for measuring energy efficiency of scientific
software applications
SO 16TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS
TECHNIQUES IN PHYSICS RESEARCH (ACAT2014)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Workshop on Advanced Computing and Analysis Techniques in
Physics Research (ACAT)
CY SEP 01-05, 2014
CL Czech Tech Univ, Fac Civil Engn, Prague, CZECH REPUBLIC
SP Western Digital, Brookhaven Natl Lab, Hewlett Packard, DataDirect Networks, M Comp, Bright Comp, Huawei, PDV Systemhaus
HO Czech Tech Univ, Fac Civil Engn
ID BOSON; LHC
AB The scale of scientific High Performance Computing (HPC) and High Throughput Computing (HTC) has increased significantly in recent years, and is becoming sensitive to total energy use and cost. Energy-efficiency has thus become an important concern in scientific fields such as High Energy Physics (HEP). There has been a growing interest in utilizing alternate architectures, such as low power ARM processors, to replace traditional Intel x86 architectures. Nevertheless, even though such solutions have been successfully used in mobile applications with low I/O and memory demands, it is unclear if they are suitable and more energy-efficient in the scientific computing environment. Furthermore, there is a lack of tools and experience to derive and compare power consumption between the architectures for various workloads, and eventually to support software optimizations for energy efficiency. To that end, we have performed several physical and software-based measurements of workloads from HEP applications running on ARM and Intel architectures, and compare their power consumption and performance. We leverage several profiling tools (both in hardware and software) to extract different characteristics of the power use. We report the results of these measurements and the experience gained in developing a set of measurement techniques and profiling tools to accurately assess the power consumption for scientific workloads.
C1 [Abdurachmanov, David] Vilnius State Univ, Fac Math & Informat, Digital Sci & Comp Ctr, Vilnius, Lithuania.
[Elmer, Peter] Princeton Univ, Dept Phys, Princeton, NJ 08540 USA.
[Eulisse, Giulio] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Knight, Robert] Princeton Univ, Res Comp, Off Informat Technol, Princeton, NJ 08540 USA.
[Niemi, Tapio; Pestana, Goncalo; Khan, Kashif] Helsinki Inst Phys, FI-00014 Helsinki, Finland.
[Nurminen, Jukka K.; Nyback, Filip; Pestana, Goncalo; Ou, Zhonghong; Khan, Kashif] Aalto Univ, Aalto 00076, Finland.
RP Abdurachmanov, D (reprint author), Vilnius State Univ, Fac Math & Informat, Digital Sci & Comp Ctr, Vilnius, Lithuania.
EM goncalo.pestana@aalto.fi
RI Nurminen, Jukka/H-7824-2012
NR 15
TC 0
Z9 0
U1 0
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 608
AR 012032
DI 10.1088/1742-6596/608/1/012032
PG 7
WC Computer Science, Interdisciplinary Applications; Physics,
Multidisciplinary
SC Computer Science; Physics
GA BD1PA
UT WOS:000358218000032
ER
PT S
AU Apostolakis, J
Bandieramonte, M
Bitzes, G
Brun, R
Canal, P
Carminati, F
Cosmo, G
Licht, JCDF
Duhem, L
Elvira, VD
Gheata, A
Jun, SY
Lima, G
Nikitina, T
Novak, M
Sehgal, R
Shadura, O
Wenzel, S
AF Apostolakis, J.
Bandieramonte, M.
Bitzes, G.
Brun, R.
Canal, P.
Carminati, F.
Cosmo, G.
Licht, J. C. De Fine
Duhem, L.
Elvira, V. D.
Gheata, A.
Jun, S. Y.
Lima, G.
Nikitina, T.
Novak, M.
Sehgal, R.
Shadura, O.
Wenzel, S.
GP IOP
TI Towards a high performance geometry library for particle-detector
simulations
SO 16TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS
TECHNIQUES IN PHYSICS RESEARCH (ACAT2014)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Workshop on Advanced Computing and Analysis Techniques in
Physics Research (ACAT)
CY SEP 01-05, 2014
CL Czech Tech Univ, Fac Civil Engn, Prague, CZECH REPUBLIC
SP Western Digital, Brookhaven Natl Lab, Hewlett Packard, DataDirect Networks, M Comp, Bright Comp, Huawei, PDV Systemhaus
HO Czech Tech Univ, Fac Civil Engn
AB Thread-parallelisation and single-instruction multiple data (SIMD) "vectorisation" of software components in HEP computing has become a necessity to fully benefit from current and future computing hardware. In this context, the Geant-Vector/GPU simulation project aims to re-engineer current software for the simulation of the passage of particles through detectors in order to increase the overall event throughput. As one of the core modules in this area, the geometry library plays a central role and vectorising its algorithms will be one of the cornerstones towards achieving good CPU performance. Here, we report on the progress made in vectorising the shape primitives, as well as in applying new C++ template based optimisations of existing code available in the Geant4, ROOT or USolids geometry libraries. We will focus on a presentation of our software development approach that aims to provide optimised code for all use cases of the library (e.g., single particle and many-particle APIs) and to support different architectures (CPU and GPU) while keeping the code base small, manageable and maintainable. We report on a generic and templated C++ geometry library as a continuation of the AIDA USolids project. The experience gained with these developments will be beneficial to other parts of the simulation software, such as for the optimisation of the physics library, and possibly to other parts of the experiment software stack, such as reconstruction and analysis.
C1 [Apostolakis, J.; Bitzes, G.; Brun, R.; Carminati, F.; Cosmo, G.; Licht, J. C. De Fine; Gheata, A.; Nikitina, T.; Novak, M.; Wenzel, S.] European Org Nucl Res CERN Geneva, Geneva, Switzerland.
[Bandieramonte, M.] Univ Catania, I-95124 Catania, Italy.
[Bandieramonte, M.] INAF, Rome, Italy.
[Canal, P.; Elvira, V. D.; Jun, S. Y.; Lima, G.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Duhem, L.] Intel Corp, Santa Clara, CA 95051 USA.
[Sehgal, R.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India.
[Shadura, O.] Natl Tech Univ Ukraine, Kyiv Politech Inst, Kiev, Ukraine.
RP Wenzel, S (reprint author), European Org Nucl Res CERN Geneva, Geneva, Switzerland.
EM sandro.wenzel@cern.ch
NR 9
TC 0
Z9 0
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 608
AR 012023
DI 10.1088/1742-6596/608/1/012023
PG 6
WC Computer Science, Interdisciplinary Applications; Physics,
Multidisciplinary
SC Computer Science; Physics
GA BD1PA
UT WOS:000358218000023
ER
PT S
AU Apostolakis, J
Bandieramonte, M
Bitzes, G
Brun, R
Canal, P
Carminati, F
Licht, JCDF
Duhem, L
Elvira, VD
Gheata, A
Jun, SY
Lima, G
Novak, M
Sehgal, R
Shadura, O
Wenzel, S
AF Apostolakis, J.
Bandieramonte, M.
Bitzes, G.
Brun, R.
Canal, P.
Carminati, F.
Licht, J. C. De Fine
Duhem, L.
Elvira, V. D.
Gheata, A.
Jun, S. Y.
Lima, G.
Novak, M.
Sehgal, R.
Shadura, O.
Wenzel, S.
GP IOP
TI Adaptive track scheduling to optimize concurrency and vectorization in
GeantV
SO 16TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS
TECHNIQUES IN PHYSICS RESEARCH (ACAT2014)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Workshop on Advanced Computing and Analysis Techniques in
Physics Research (ACAT)
CY SEP 01-05, 2014
CL Czech Tech Univ, Fac Civil Engn, Prague, CZECH REPUBLIC
SP Western Digital, Brookhaven Natl Lab, Hewlett Packard, DataDirect Networks, M Comp, Bright Comp, Huawei, PDV Systemhaus
HO Czech Tech Univ, Fac Civil Engn
AB The GeantV project is focused on the R&D of new particle transport techniques to maximize parallelism on multiple levels, profiting from the use of both SIMD instructions and co-processors for the CPU-intensive calculations specific to this type of applications. In our approach, vectors of tracks belonging to multiple events and matching different locality criteria must be gathered and dispatched to algorithms having vector signatures. While the transport propagates tracks and changes their individual states, data locality becomes harder to maintain. The scheduling policy has to be changed to maintain efficient vectors while keeping an optimal level of concurrency. The model has complex dynamics requiring tuning the thresholds to switch between the normal regime and special modes, i.e. prioritizing events to allow flushing memory, adding new events in the transport pipeline to boost locality, dynamically adjusting the particle vector size or switching between vector to single track mode when vectorization causes only overhead. This work requires a comprehensive study for optimizing these parameters to make the behaviour of the scheduler self-adapting, presenting here its initial results.
C1 [Apostolakis, J.; Brun, R.; Carminati, F.; Gheata, A.; Novak, M.; Wenzel, S.] European Org Nucl Res CERN, Geneva, Switzerland.
[Bandieramonte, M.] Univ Catania, I-95124 Catania, Italy.
[Bandieramonte, M.] INAF, Rome, Italy.
[Bitzes, G.] Univ Athens, GR-10679 Athens, Greece.
[Canal, P.; Elvira, V. D.; Jun, S. Y.; Lima, G.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Licht, J. C. De Fine] Univ Copenhagen, DK-1168 Copenhagen, Denmark.
[Duhem, L.] Intel Corp, Santa Clara, CA 95051 USA.
[Sehgal, R.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India.
[Shadura, O.] Natl Tech Univ Ukraine, Kyiv Politech Inst, Kiev, Ukraine.
RP Apostolakis, J (reprint author), European Org Nucl Res CERN, Geneva, Switzerland.
EM Andrei.Gheata@cern.ch
NR 6
TC 0
Z9 0
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 608
AR 012003
DI 10.1088/1742-6596/608/1/012003
PG 8
WC Computer Science, Interdisciplinary Applications; Physics,
Multidisciplinary
SC Computer Science; Physics
GA BD1PA
UT WOS:000358218000003
ER
PT S
AU Arkhipkin, D
Lauret, J
AF Arkhipkin, D.
Lauret, J.
GP IOP
TI STAR Online Framework: from Metadata Collection to Event Analysis and
System Control
SO 16TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS
TECHNIQUES IN PHYSICS RESEARCH (ACAT2014)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Workshop on Advanced Computing and Analysis Techniques in
Physics Research (ACAT)
CY SEP 01-05, 2014
CL Czech Tech Univ, Fac Civil Engn, Prague, CZECH REPUBLIC
SP Western Digital, Brookhaven Natl Lab, Hewlett Packard, DataDirect Networks, M Comp, Bright Comp, Huawei, PDV Systemhaus
HO Czech Tech Univ, Fac Civil Engn
AB In preparation for the new era of RHIC running (RHIC-II upgrades and possibly, the eRHIC era), the STAR experiment is expanding its modular Message Interface and Reliable Architecture framework (MIRA). MIRA allowed STAR to integrate meta-data collection, monitoring, and online QA components in a very agile and efficient manner using a messaging infrastructure approach. In this paper, we briefly summarize our past achievements, provide an overview of the recent development activities focused on messaging patterns and describe our experience with the complex event processor (CEP) recently integrated into the MTRA framework. CEP was used in the recent RiliC Run 14, which provided practical use cases. Finally, we present our requirements and expectations for the planned expansion of our systems, which will allow our framework to acquire features typically associated with Detector Control Systems. Special attention is given to aspects related to latency, scalability and interoperability within heterogeneous set of services, various data and meta-data acquisition components coexisting in STAR online domain.
C1 [Arkhipkin, D.; Lauret, J.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Arkhipkin, D (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
EM arkhipkin@bnl.gov; jlauret@bnl.gov
NR 2
TC 0
Z9 0
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 608
AR 012036
DI 10.1088/1742-6596/608/1/012036
PG 5
WC Computer Science, Interdisciplinary Applications; Physics,
Multidisciplinary
SC Computer Science; Physics
GA BD1PA
UT WOS:000358218000036
ER
PT S
AU Borodin, M
De, K
Navarro, JG
Golubkov, D
Klimentov, A
Maeno, T
Vaniachine, A
AF Borodin, M.
De, K.
Garcia Navarro, J.
Golubkov, D.
Klimentov, A.
Maeno, T.
Vaniachine, A.
CA ATLAS Collaboration
GP IOP
TI Multilevel Workflow System in the ATLAS Experiment
SO 16TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS
TECHNIQUES IN PHYSICS RESEARCH (ACAT2014)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Workshop on Advanced Computing and Analysis Techniques in
Physics Research (ACAT)
CY SEP 01-05, 2014
CL Czech Tech Univ, Fac Civil Engn, Prague, CZECH REPUBLIC
SP Western Digital, Brookhaven Natl Lab, Hewlett Packard, DataDirect Networks, M Comp, Bright Comp, Huawei, PDV Systemhaus
HO Czech Tech Univ, Fac Civil Engn
AB The ATLAS experiment is scaling up Big Data processing for the next LHC run using a multilevel workflow system comprised of many layers. In Big Data processing ATLAS deals with datasets, not individual files. Similarly a task (comprised of many jobs) has become a unit of the ATLAS workflow in distributed computing, with about 0.8M tasks processed per year. In order to manage the diversity of LHC physics (exceeding 35K physics samples per year), the individual data processing tasks are organized into workflows. For example, the Monte Carlo workflow is composed of many steps: generate or configure hard-processes, hadronize signal and minimum-bias (pileup) events, simulate energy deposition in the ATLAS detector, digitize electronics response, simulate triggers, reconstruct data, convert the reconstructed data into ROOT ntuples for physics analysis, etc. Outputs are merged and/or filtered as necessary to optimize the chain. The bi-level workflow manager - ProdSys2 - generates actual workflow tasks and their jobs are executed across more than a hundred distributed computing sites by PanDA - the ATLAS job-level workload management system. On the outer level, the Database Engine for Tasks (DEfT) empowers production managers with templated workflow definitions. On the next level, the Job Execution and Definition Interface (JEDI) is integrated with PanDA to provide dynamic job definition tailored to the sites capabilities. We report on scaling up the production system to accommodate a growing number of requirements from main ATLAS areas: Trigger, Physics and Data Preparation.
C1 [Borodin, M.] Natl Res Nucl Univ MEPhI, Dept Elementary Particle Phys, Moscow 117513, Russia.
[De, K.] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA.
[Garcia Navarro, J.] Univ Valencia, Inst Fis Corpuscular, E-46980 Paterna, Spain.
[Golubkov, D.] Inst High Energy Phys, Expt Phys Dept, Protvino 142281, Russia.
[Golubkov, D.] Natl Res Ctr Kurchatov Inst, Big Data Lab, Moscow 123182, Russia.
[Klimentov, A.; Maeno, T.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
[Vaniachine, A.] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.
RP Borodin, M (reprint author), Natl Res Nucl Univ MEPhI, Dept Elementary Particle Phys, Moscow 117513, Russia.
EM vaniachine@anl.gov
NR 9
TC 2
Z9 2
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 608
AR 012015
DI 10.1088/1742-6596/608/1/012015
PG 5
WC Computer Science, Interdisciplinary Applications; Physics,
Multidisciplinary
SC Computer Science; Physics
GA BD1PA
UT WOS:000358218000015
ER
PT S
AU Jones, RWL
Stewart, GA
Leggett, C
Wynne, BM
AF Jones, R. W. L.
Stewart, G. A.
Leggett, C.
Wynne, B. M.
GP IOP
TI Evolution of the ATLAS Software Framework towards Concurrency
SO 16TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS
TECHNIQUES IN PHYSICS RESEARCH (ACAT2014)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Workshop on Advanced Computing and Analysis Techniques in
Physics Research (ACAT)
CY SEP 01-05, 2014
CL Czech Tech Univ, Fac Civil Engn, Prague, CZECH REPUBLIC
SP Western Digital, Brookhaven Natl Lab, Hewlett Packard, DataDirect Networks, M Comp, Bright Comp, Huawei, PDV Systemhaus
HO Czech Tech Univ, Fac Civil Engn
AB The ATLAS experiment has successfully used its Gaudi/Athena software framework for data taking and analysis during the first LHC run, with billions of events successfully processed. However, the design of Gaudi/Athena dates from early 2000 and the software and the physics code has been written using a single threaded, serial design. This programming model has increasing difficulty in exploiting the potential of current CPUs, which offer their best performance only through taking full advantage of multiple cores and wide vector registers. Future CPU evolution will intensify this trend, with core counts increasing and memory per core falling. Maximising performance per watt will be a key metric, so all of these cores must be used as efficiently as possible. In order to address the deficiencies of the current framework, ATLAS has embarked upon two projects: first, a practical demonstration of the use of multi-threading in our reconstruction software, using the GaudiHive framework; second, an exercise to gather requirements for an updated framework, going back to the first principles of how event processing occurs. In this paper we report on both these aspects of our work. For the hive based demonstrators, we discuss what changes were necessary in order to allow the serially designed ATLAS code to run, both to the framework and to the tools and algorithms used. We report on what general lessons were learned about the code patterns that had been employed in the software and which patterns were identified as particularly problematic for multi-threading. These lessons were fed into our considerations of a new framework and we present preliminary conclusions on this work. In particular we identify areas where the framework can be simplified in order to aid the implementation of a concurrent event processing scheme. Finally, we discuss the practical difficulties involved in migrating a large established code base to a multi-threaded framework and how this can be achieved for LHC Run 3.
C1 [Jones, R. W. L.] Univ Lancaster, Dept Phys, Lancaster, England.
[Stewart, G. A.] Univ Glasgow, Sch Phys & Astron, Glasgow, Lanark, Scotland.
[Leggett, C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA.
[Leggett, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Wynne, B. M.] Univ Edinburgh, Sch Phys & Astron, Edinburgh, Midlothian, Scotland.
RP Jones, RWL (reprint author), Univ Lancaster, Dept Phys, Lancaster, England.
EM Roger.Jones@lancaster.ac.uk
RI Jones, Roger/H-5578-2011
OI Jones, Roger/0000-0002-6427-3513
NR 3
TC 0
Z9 0
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 608
AR 012037
DI 10.1088/1742-6596/608/1/012037
PG 5
WC Computer Science, Interdisciplinary Applications; Physics,
Multidisciplinary
SC Computer Science; Physics
GA BD1PA
UT WOS:000358218000037
ER
PT S
AU Klimentov, A
Buncic, P
De, K
Jha, S
Maeno, T
Mount, R
Nilsson, P
Oleynik, D
Panitkin, S
Petrosyan, A
Porter, RJ
Read, KF
Vaniachine, A
Wells, JC
Wenaus, T
AF Klimentov, A.
Buncic, P.
De, K.
Jha, S.
Maeno, T.
Mount, R.
Nilsson, P.
Oleynik, D.
Panitkin, S.
Petrosyan, A.
Porter, R. J.
Read, K. F.
Vaniachine, A.
Wells, J. C.
Wenaus, T.
GP IOP
TI Next Generation Workload Management System For Big Data on Heterogeneous
Distributed Computing
SO 16TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS
TECHNIQUES IN PHYSICS RESEARCH (ACAT2014)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Workshop on Advanced Computing and Analysis Techniques in
Physics Research (ACAT)
CY SEP 01-05, 2014
CL Czech Tech Univ, Fac Civil Engn, Prague, CZECH REPUBLIC
SP Western Digital, Brookhaven Natl Lab, Hewlett Packard, DataDirect Networks, M Comp, Bright Comp, Huawei, PDV Systemhaus
HO Czech Tech Univ, Fac Civil Engn
ID DETECTOR; PARTICLE
AB The Large Hadron Collider (LHC), operating at the international CERN Laboratory in Geneva, Switzerland, is leading Big Data driven scientific explorations. Experiments at the LHC explore the fundamental nature of matter and the basic forces that shape our universe, and were recently credited for the discovery of a Higgs boson. ATLAS and ALICE are the largest collaborations ever assembled in the sciences and are at the forefront of research at the LHC. To address an unprecedented multi-petabyte data processing challenge, both experiments rely on a heterogeneous distributed computational infrastructure. The ATLAS experiment uses PanDA (Production and Data Analysis) Workload Management System (WMS) for managing the workflow for all data processing on hundreds of data centers. Through PanDA, ATLAS physicists see a single computing facility that enables rapid scientific breakthroughs for the experiment, even though the data centers are physically scattered all over the world. The scale is demonstrated by the following numbers: PanDA manages O(10(2)) sites, O(10(5)) cores, O(10(8)) jobs per year, O(10(3)) users, and ATLAS data volume is O(10(17)) bytes. In 2013 we started an ambitious program to expand PanDA to all available computing resources, including opportunistic use of commercial and academic clouds and Leadership Computing Facilities (LCF). The project titled 'Next Generation Workload Management and Analysis System for Big Data' (BigPanDA) is funded by DOE ASCR and HEP. Extending PanDA to clouds and LCF presents new challenges in managing heterogeneity and supporting workflow. The BigPanDA project is underway to setup and tailor PanDA at the Oak Ridge Leadership Computing Facility (OLCF) and at the National Research Center "Kurchatov Institute" together with ALICE distributed computing and ORNL computing professionals. Our approach to integration of HPC platforms at the OLCF and elsewhere is to reuse, as much as possible, existing components of the PanDA system. We will present our current accomplishments with running the PanDA WMS at OLCF and other supercomputers and demonstrate our ability to use PanDA as a portal independent of the computing facilities infrastructure for High Energy and Nuclear Physics as well as other data-intensive science applications.
C1 [Klimentov, A.; Maeno, T.; Nilsson, P.; Panitkin, S.; Wenaus, T.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Buncic, P.] CERN, Geneva, Switzerland.
[De, K.; Oleynik, D.; Petrosyan, A.] Univ Texas Arlington, Arlington, TX 76019 USA.
[De, K.; Oleynik, D.; Petrosyan, A.] Rutgers State Univ, Piscataway, NJ USA.
[Mount, R.] SLAC Natl Accelerator Lab, Menlo Pk, CA USA.
[Porter, R. J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Read, K. F.; Wells, J. C.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Vaniachine, A.] Argonne Natl Lab Lemont, Argonne, IL USA.
RP Klimentov, A (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM aak@bnl.gov
RI Wells, Jack/D-3675-2016;
OI Wells, Jack/0000-0002-5083-3030; Read, Kenneth/0000-0002-3358-7667
NR 7
TC 1
Z9 1
U1 1
U2 14
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 608
AR 012040
DI 10.1088/1742-6596/608/1/012040
PG 8
WC Computer Science, Interdisciplinary Applications; Physics,
Multidisciplinary
SC Computer Science; Physics
GA BD1PA
UT WOS:000358218000040
ER
PT S
AU Lange, DJ
Hildreth, M
Ivantchenko, VN
Osborne, I
AF Lange, D. J.
Hildreth, M.
Ivantchenko, V. N.
Osborne, I.
CA CMS Collaboration
GP IOP
TI Upgrades for the CMS simulation
SO 16TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS
TECHNIQUES IN PHYSICS RESEARCH (ACAT2014)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Workshop on Advanced Computing and Analysis Techniques in
Physics Research (ACAT)
CY SEP 01-05, 2014
CL Czech Tech Univ, Fac Civil Engn, Prague, CZECH REPUBLIC
SP Western Digital, Brookhaven Natl Lab, Hewlett Packard, DataDirect Networks, M Comp, Bright Comp, Huawei, PDV Systemhaus
HO Czech Tech Univ, Fac Civil Engn
AB Over the past several years, the CMS experiment has made significant changes to its detector simulation application. The geometry has been generalized to include modifications being made to the CMS detector for 2015 operations, as well as model improvements to the simulation geometry of the current CMS detector and the implementation of a number of approved and possible future detector configurations. These include both completely new tracker and calorimetry systems. We have completed the transition to Geant4 version 10, we have made significant progress in reducing the CPU resources required to run our Geant4 simulation. These have been achieved through both technical improvements and through numerical techniques. Substantial speed improvements have been achieved without changing the physics validation benchmarks that the experiment uses to validate our simulation application for use in production. In this presentation, we will discuss the methods that we implemented and the corresponding demonstrated performance improvements deployed for our 2015 simulation application.
C1 [Lange, D. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Hildreth, M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Ivantchenko, V. N.] CERN, Geneva, Switzerland.
[Osborne, I.] Fermi Natl Lab, Batavia, IL 60510 USA.
RP Lange, DJ (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 608
AR 012056
DI 10.1088/1742-6596/608/1/012056
PG 6
WC Computer Science, Interdisciplinary Applications; Physics,
Multidisciplinary
SC Computer Science; Physics
GA BD1PA
UT WOS:000358218000056
ER
PT S
AU Makatun, D
Lauret, J
Rudova, H
Sumbera, M
AF Makatun, Dzmitry
Lauret, Jerome
Rudova, Hana
Sumbera, Michal
GP IOP
TI Planning for distributed workflows: constraint-based coscheduling of
computational jobs and data placement in distributed environments
SO 16TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS
TECHNIQUES IN PHYSICS RESEARCH (ACAT2014)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Workshop on Advanced Computing and Analysis Techniques in
Physics Research (ACAT)
CY SEP 01-05, 2014
CL Czech Tech Univ, Fac Civil Engn, Prague, CZECH REPUBLIC
SP Western Digital, Brookhaven Natl Lab, Hewlett Packard, DataDirect Networks, M Comp, Bright Comp, Huawei, PDV Systemhaus
HO Czech Tech Univ, Fac Civil Engn
AB When running data intensive applications on distributed computational resources long I/O overheads may be observed as access to remotely stored data is performed. Latencies and bandwidth can become the major limiting factor for the overall computation performance and can reduce the CPU/WallTime ratio to excessive TO wait. Reusing the knowledge of our previous research, we propose a constraint programming based planner that schedules computational jobs and data placements (transfers) in a distributed environment in order to optimize resource utilization and reduce the overall processing completion time. The optimization is achieved by ensuring that none of the resources (network links, data storages and CPUs) are oversaturated at any moment of time and either (a) that the data is pre-placed at the site where the job runs or (b) that the jobs are scheduled where the data is already present. Such an approach eliminates the idle CPU cycles occurring when the job is waiting for the I/O from a remote site and would have wide application in the community. Our planner was evaluated and simulated based on data extracted from log files of batch and data management systems of the STAR experiment. The results of evaluation and estimation of performance improvements are discussed in this paper.
C1 [Makatun, Dzmitry] Czech Tech Univ, Fac Nucl Phys & Phys Engn, CR-16635 Prague, Czech Republic.
[Lauret, Jerome] Brookhaven Natl Lab, STAR, Upton, NY 11973 USA.
[Makatun, Dzmitry; Sumbera, Michal] Acad Sci Czech Republic, Nucl Phys Inst, Prague, Czech Republic.
[Rudova, Hana] Masaryk Univ, CS-60177 Brno, Czech Republic.
RP Makatun, D (reprint author), Czech Tech Univ, Fac Nucl Phys & Phys Engn, CR-16635 Prague, Czech Republic.
EM dzmitry.makatun@fjfi.cvut.cz
RI Makatun, Dzmitry/O-2487-2015; Sumbera, Michal/O-7497-2014
OI Sumbera, Michal/0000-0002-0639-7323
NR 9
TC 0
Z9 0
U1 1
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 608
AR 012028
DI 10.1088/1742-6596/608/1/012028
PG 6
WC Computer Science, Interdisciplinary Applications; Physics,
Multidisciplinary
SC Computer Science; Physics
GA BD1PA
UT WOS:000358218000028
ER
PT S
AU Sexton-Kennedy, E
Gartung, P
Jones, CD
Lange, D
AF Sexton-Kennedy, E.
Gartung, Patrick
Jones, C. D.
Lange, David
GP IOP
TI Implementation of a Multi-threaded Framework for Large-scale Scientific
Applications
SO 16TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS
TECHNIQUES IN PHYSICS RESEARCH (ACAT2014)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Workshop on Advanced Computing and Analysis Techniques in
Physics Research (ACAT)
CY SEP 01-05, 2014
CL Czech Tech Univ, Fac Civil Engn, Prague, CZECH REPUBLIC
SP Western Digital, Brookhaven Natl Lab, Hewlett Packard, DataDirect Networks, M Comp, Bright Comp, Huawei, PDV Systemhaus
HO Czech Tech Univ, Fac Civil Engn
AB The CMS experiment has recently completed the development of a multi-threaded capable application framework. In this paper, we will discuss the design, implementation and application of this framework to production applications in CMS. For the 2015 LHC run, this functionality is particularly critical for both our online and offline production applications, which depend on faster turn-around times and a reduced memory footprint relative to before. These applications are complex codes, each including a large number of physics-driven algorithms. While the framework is capable of running a mix of thread-safe and "legacy" modules, algorithms running in our production applications need to be thread-safe for optimal use of this multi-threaded framework at a large scale. Towards this end, we discuss the types of changes, which were necessary for our algorithms to achieve good performance of our multi-threaded applications in a full-scale application. Finally performance numbers for what has been achieved for the 2015 run are presented.
C1 [Sexton-Kennedy, E.; Gartung, Patrick; Jones, C. D.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Lange, David] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Sexton-Kennedy, E (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM sexton@fnal.gov; cdj@fnal.gov; gartung@fnal.gov; David.Lange@cern.ch
NR 3
TC 0
Z9 0
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 608
AR 012034
DI 10.1088/1742-6596/608/1/012034
PG 6
WC Computer Science, Interdisciplinary Applications; Physics,
Multidisciplinary
SC Computer Science; Physics
GA BD1PA
UT WOS:000358218000034
ER
PT J
AU Mu, G
Sandu, V
Li, W
Shen, B
AF Mu, Gang
Sandu, Viorel
Li, Wei
Shen, Bing
TI Exotic Superconductivity in Correlated Electron Systems
SO ADVANCES IN CONDENSED MATTER PHYSICS
LA English
DT Editorial Material
C1 [Mu, Gang; Li, Wei] Chinese Acad Sci, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China.
[Mu, Gang; Li, Wei] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Shanghai Ctr Superconduct, Shanghai 200050, Peoples R China.
[Sandu, Viorel] Natl Inst Mat Phys, Magurele 077125, Romania.
[Shen, Bing] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Mu, G (reprint author), Chinese Acad Sci, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China.
EM mugang@mail.sim.ac.cn
RI Mu, Gang/G-9407-2011; Li, Wei/B-4936-2016
OI Mu, Gang/0000-0001-5676-4702; Li, Wei/0000-0002-3251-1919
NR 0
TC 1
Z9 1
U1 2
U2 7
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-8108
EI 1687-8124
J9 ADV COND MATTER PHYS
JI Adv. Condens. Matter Phys.
PY 2015
AR 180195
DI 10.1155/2015/180195
PG 2
WC Physics, Condensed Matter
SC Physics
GA CO1KO
UT WOS:000358913600001
ER
PT S
AU Das, S
Robinson, JA
Dubey, M
Terrones, H
Terrones, M
AF Das, Saptarshi
Robinson, Joshua A.
Dubey, Madan
Terrones, Humberto
Terrones, Mauricio
BE Clarke, DR
TI Beyond Graphene: Progress in Novel Two-Dimensional Materials and van der
Waals Solids
SO ANNUAL REVIEW OF MATERIALS RESEARCH, VOL 45
SE Annual Review of Materials Research
LA English
DT Review; Book Chapter
DE 2D materials; synthesis; electronics; photonics; catalysis
ID FIELD-EFFECT TRANSISTORS; CHEMICAL-VAPOR-DEPOSITION; MOS2 THIN-FILM;
TRANSITION-METAL DICHALCOGENIDES; HYDROGEN EVOLUTION REACTION;
LOW-RESISTANCE CONTACTS; ACTIVE EDGE SITES; SINGLE-LAYER MOS2;
P-N-JUNCTIONS; MOLYBDENUM-DISULFIDE
AB Interest in 2D materials and van der Waals solids is growing exponentially across various scientific and engineering disciplines owing to their fascinating electrical, optical, chemical, and thermal properties. Whereas the micromechanical exfoliation technique has been adopted for rapid material characterization and demonstration of innovative device ideas based on these 2D systems, significant advances have recently been made in large-scale homogeneous and heterogeneous growth of these materials. This review reflects recent progress and outlines future prospects of these novel 2D materials. We provide a holistic overview of the different synthesis and characterization techniques, electronic and photonic device characteristics, and catalytic properties of transition metal dichalcogenides and their heterostructures. We also comment on the challenges that need to be overcome for full-scale commercial implementation of this novel class of layered materials.
C1 [Das, Saptarshi] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Robinson, Joshua A.; Terrones, Mauricio] Penn State Univ, Dept Mat Sci, University Pk, PA 16802 USA.
[Robinson, Joshua A.; Terrones, Mauricio] Penn State Univ, Ctr Two Dimens & Layered Mat, University Pk, PA 16802 USA.
[Dubey, Madan] US Army Res Lab, Sensors & Electron Devices Directorate, Adelphi, MD 20723 USA.
[Terrones, Humberto] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA.
[Terrones, Mauricio] Penn State Univ, Dept Phys, University Pk, PA 16802 USA.
[Terrones, Mauricio] Penn State Univ, Dept Chem, University Pk, PA 16802 USA.
RP Das, S (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM das@anl.gov; jrobinson@psu.edu; madan.dubey.civ@mail.mil;
terroh@rpi.edu; mut11@psu.edu
FU US Army Research Office MURI [W911NF-11-1-0362]; LEAST (the Center for
Low Energy Systems Technology); MARCO; DARPA; Penn State Center for
Nanoscale Science for a seed grant [DMR-0820404]; Department of Energy
(DoE) Office of High Energy Physics [DE-AC02-06CH11357]; DoE, Office of
Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; National
Science Foundation [EFRI-1433311]
FX We thank Ruitao Lv and Simin Feng for fruitful discussions. This work is
supported by the US Army Research Office MURI grant W911NF-11-1-0362 and
by LEAST (the Center for Low Energy Systems Technology), one of six
centers supported by the STARnet phase of the Focus Center Research
Program, a Semiconductor Research Corporation program sponsored by MARCO
and DARPA. M.T. and J.A.R. also acknowledge support from the Penn State
Center for Nanoscale Science for a seed grant on 2D layered materials
(DMR-0820404). The authors also acknowledge the Center for
Two-Dimensional and Layered Materials. The work of S.D. is supported by
the Department of Energy (DoE) Office of High Energy Physics under DoE
contract DE-AC02-06CH11357. Use of the Center for Nanoscale Materials at
Argonne was supported by the DoE, Office of Science, Office of Basic
Energy Sciences, under contract DE-AC02-06CH11357. H.T. acknowledges
support from the National Science Foundation (EFRI-1433311).
NR 150
TC 54
Z9 54
U1 54
U2 266
PU ANNUAL REVIEWS
PI PALO ALTO
PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA
SN 1531-7331
BN 978-0-8243-1745-4
J9 ANNU REV MATER RES
JI Ann. Rev. Mater. Res.
PY 2015
VL 45
BP 1
EP 27
DI 10.1146/annurev-matsci-070214-021034
PG 27
WC Materials Science, Multidisciplinary
SC Materials Science
GA BD1XC
UT WOS:000358484200001
ER
PT J
AU Afonine, PV
Urzhumtsev, A
Adams, PD
AF Afonine, Pavel V.
Urzhumtsev, Alexandre
Adams, Paul D.
TI MACROMOLECULAR CRYSTALLOGRAPHIC STRUCTURE REFINEMENT
SO ARBOR-CIENCIA PENSAMIENTO Y CULTURA
LA English
DT Article
DE bulk-solvent; constraints; fast gradient calculation; Fourier maps;
maximum-likelihood; minimization; neutrons; optimization; refinement;
restraints; structure factors; X-rays
ID LEAST-SQUARES REFINEMENT; FAST FOURIER-TRANSFORM; PROTEIN DATA-BANK;
X-RAY; MAXIMUM-LIKELIHOOD; CRYSTAL-STRUCTURES; BULK-SOLVENT; R-FACTOR;
RESOLUTION; MODEL
AB Model refinement is a key step in crystallographic structure determination that ensures final atomic structure of macromolecule represents measured diffraction data as good as possible. Several decades have been put into developing methods and computational tools to streamline this step. In this manuscript we provide a brief overview of major milestones of crystallographic computing and methods development pertinent to structure refinement.
C1 [Afonine, Pavel V.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Urzhumtsev, Alexandre] Univ Lorraine, Ctr Integrat Biol, IGBMC, CNRS INSERM UdS, Nancy, France.
[Adams, Paul D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Afonine, PV (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM PAfonine@lbl.gov; sacha@igbmc.fr; pdadams@lbl.gov
NR 74
TC 1
Z9 1
U1 3
U2 9
PU LIBRERIA CIENTIFICA MEDINACELI
PI MADRID
PA DUQUE DE MEDINACELI 4, 14 MADRID, SPAIN
SN 0210-1963
EI 1988-303X
J9 ARBOR
JI Arbor-Cienc. Pensam. Cult.
PY 2015
VL 191
IS 772
AR a219
DI 10.3989/arbor.2015.772n2005
PG 14
WC Humanities, Multidisciplinary
SC Arts & Humanities - Other Topics
GA CN8HD
UT WOS:000358679900006
ER
PT J
AU Liu, J
Scheuer, E
Dibb, J
Diskin, GS
Ziemba, LD
Thornhill, KL
Anderson, BE
Wisthaler, A
Mikoviny, T
Devi, JJ
Bergin, M
Perring, AE
Markovic, MZ
Schwarz, JP
Campuzano-Jost, P
Day, DA
Jimenez, JL
Weber, RJ
AF Liu, J.
Scheuer, E.
Dibb, J.
Diskin, G. S.
Ziemba, L. D.
Thornhill, K. L.
Anderson, B. E.
Wisthaler, A.
Mikoviny, T.
Devi, J. J.
Bergin, M.
Perring, A. E.
Markovic, M. Z.
Schwarz, J. P.
Campuzano-Jost, P.
Day, D. A.
Jimenez, J. L.
Weber, R. J.
TI Brown carbon aerosol in the North American continental troposphere:
sources, abundance, and radiative forcing
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID LIGHT-ABSORPTION ENHANCEMENT; SOUTHEASTERN UNITED-STATES; BIOMASS
BURNING PARTICLES; SECONDARY ORGANIC AEROSOL; BLACK CARBON;
OPTICAL-PROPERTIES; SOLAR-RADIATION; RESOLVED MEASUREMENTS;
CHEMICAL-COMPOSITION; ANGSTROM EXPONENT
AB Chemical components of organic aerosol (OA) selectively absorb light at short wavelengths. In this study, the prevalence, sources, and optical importance of this so-called brown carbon (BrC) aerosol component are investigated throughout the North American continental tropospheric column during a summer of extensive biomass burning. Spectrophotometric absorption measurements on extracts of bulk aerosol samples collected from an aircraft over the central USA were analyzed to directly quantify BrC abundance. BrC was found to be prevalent throughout the 1 to 12 km altitude measurement range, with dramatic enhancements in biomass-burning plumes. BrC to black carbon (BC) ratios, under background tropospheric conditions, increased with altitude, consistent with a corresponding increase in the absorption Angstrom exponent (AAE) determined from a three-wavelength particle soot absorption photometer (PSAP). The sum of inferred BC absorption and measured BrC absorption at 365 nm was within 3% of the measured PSAP absorption for background conditions and 22% for biomass burning. A radiative transfer model showed that BrC absorption reduced top-of-atmosphere (TOA) aerosol forcing by similar to 20% in the background troposphere. Extensive radiative model simulations applying this study background tropospheric conditions provided a look-up chart for determining radiative forcing efficiencies of BrC as a function of a surface-measured BrC : BC ratio and single scattering albedo (SSA). The chart is a first attempt to provide a tool for better assessment of brown carbon's forcing effect when one is limited to only surface data. These results indicate that BrC is an important contributor to direct aerosol radiative forcing.
C1 [Liu, J.; Weber, R. J.] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA.
[Scheuer, E.; Dibb, J.] Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA.
[Diskin, G. S.; Ziemba, L. D.; Thornhill, K. L.; Anderson, B. E.] NASA, Langley Res Ctr, Hampton, VA 23681 USA.
[Wisthaler, A.] Univ Innsbruck, Inst Ion Phys & Appl Phys, A-6020 Innsbruck, Austria.
[Mikoviny, T.] Oak Ridge Associated Univ, Oak Ridge, TN 37830 USA.
[Devi, J. J.; Bergin, M.] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA.
[Perring, A. E.; Markovic, M. Z.; Schwarz, J. P.] Natl Ocean & Atmospher Adm, Earth Syst Res Lab, Chem Sci Div, Boulder, CO 80305 USA.
[Perring, A. E.; Markovic, M. Z.; Schwarz, J. P.; Campuzano-Jost, P.; Day, D. A.; Jimenez, J. L.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Campuzano-Jost, P.; Day, D. A.; Jimenez, J. L.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
RP Weber, RJ (reprint author), Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA.
EM rodney.weber@eas.gatech.edu
RI Liu, Jiumeng/K-2024-2012; Perring, Anne/G-4597-2013; Jimenez,
Jose/A-5294-2008; schwarz, joshua/G-4556-2013; Manager, CSD
Publications/B-2789-2015
OI Liu, Jiumeng/0000-0001-7238-593X; Perring, Anne/0000-0003-2231-7503;
Jimenez, Jose/0000-0001-6203-1847; schwarz, joshua/0000-0002-9123-2223;
FU GIT NASA [NNX12AB83G, NNX08AH80G]; UNH NASA [NNX12AB80G]; NASA
[NNX12AC03G]
FX This project was funded by GIT NASA contracts NNX12AB83G and NNX08AH80G
and UNH NASA contract NNX12AB80G. Acetonitrile measurements onboard the
DC-8 were supported by BMVIT/FFG-ALR and the NASA Postdoctoral Program.
P. Campuzano-Jost, D. A. Day, and J. L. Jimenez were supported by NASA
NNX12AC03G. The authors thank the DC3 personnel for logistical support.
NR 70
TC 10
Z9 10
U1 5
U2 44
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2015
VL 15
IS 14
BP 7841
EP 7858
DI 10.5194/acp-15-7841-2015
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CN9VS
UT WOS:000358799000007
ER
PT J
AU Evans, M
Kholod, N
Malyshev, V
Tretyakova, S
Gusev, E
Yu, S
Barinov, A
AF Evans, M.
Kholod, N.
Malyshev, V.
Tretyakova, S.
Gusev, E.
Yu, S.
Barinov, A.
TI Black carbon emissions from Russian diesel sources: case study of
Murmansk
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID FUTURE
AB Black carbon (BC) is a potent pollutant because of its effects on climate change, ecosystems and human health. Black carbon has a particularly pronounced impact as a climate forcer in the Arctic because of its effect on snow albedo and cloud formation. We have estimated BC emissions from diesel sources in the Murmansk Region and Murmansk City, the largest city in the world above the Arctic Circle. In this study we developed a detailed inventory of diesel sources including on-road vehicles, off-road transport (mining, locomotives, construction and agriculture), ships and diesel generators. For on-road transport, we conducted several surveys to understand the vehicle fleet and driving patterns, and, for all sources, we also relied on publicly available local data sets and analysis. We calculated that BC emissions in the Murmansk Region were 0.40 Gg in 2012. The mining industry is the largest source of BC emissions in the region, emitting 69% of all BC emissions because of its large diesel consumption and absence of emissions controls. On-road vehicles are the second largest source, emitting about 13% of emissions. Old heavy duty trucks are the major source of emissions. Emission controls on new vehicles limit total emissions from on-road transportation. Vehicle traffic and fleet surveys show that many of the older cars on the registry are lightly or never used. We also estimated that total BC emissions from diesel sources in Russia were 50.8 Gg in 2010, and on-road transport contributed 49% of diesel BC emissions. Agricultural machinery is also a significant source Russia-wide, in part because of the lack of controls on off-road vehicles.
C1 [Evans, M.; Kholod, N.; Yu, S.] Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
[Malyshev, V.; Gusev, E.; Barinov, A.] Murmansk State Tech Univ, Dept Energy & Transport, Murmansk, Russia.
[Tretyakova, S.] Murmansk State Tech Univ, Dept Environm, Murmansk, Russia.
RP Evans, M (reprint author), Pacific NW Natl Lab, Joint Global Change Res Inst, 5825 Univ Res Court,Suite 3500, College Pk, MD 20740 USA.
EM m.evans@pnnl.gov
RI gusev, yugeniy/G-4711-2014;
OI gusev, yugeniy/0000-0003-3886-2143; Malyshev,
Vladimir/0000-0002-1178-1776
FU US Environmental Protection Agency, Office of International and Tribal
Affairs [X4-83527901]; US Department of State; US Department of Energy
[DE-AC05-76RL01831]
FX The authors are grateful for research support provided by the US
Environmental Protection Agency, Office of International and Tribal
Affairs (grant no. X4-83527901) and the US Department of State. Battelle
Memorial Institute operates the Pacific Northwest National Laboratory
for the US Department of Energy under contract DE-AC05-76RL01831. We
thank the members of the Technical Steering Group for their helpful
comments and suggestions. The views and opinions expressed in this paper
are those of the authors alone.
NR 26
TC 5
Z9 5
U1 2
U2 6
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2015
VL 15
IS 14
BP 8349
EP 8359
DI 10.5194/acp-15-8349-2015
PG 11
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CN9VS
UT WOS:000358799000032
ER
PT J
AU Wagner, NL
Brock, CA
Angevine, WM
Beyersdorf, A
Campuzano-Jost, P
Day, DA
de Gouw, JA
Diskin, GS
Gordon, TD
Graus, MG
Holloway, JS
Huey, G
Jimenez, JL
Lack, DA
Liao, J
Liu, X
Markovic, MZ
Middlebrook, AM
Mikoviny, T
Peischl, J
Perring, AE
Richardson, MS
Ryerson, TB
Schwarz, JP
Warneke, C
Welti, A
Wisthaler, A
Ziemba, LD
Murphy, DM
AF Wagner, N. L.
Brock, C. A.
Angevine, W. M.
Beyersdorf, A.
Campuzano-Jost, P.
Day, D. A.
de Gouw, J. A.
Diskin, G. S.
Gordon, T. D.
Graus, M. G.
Holloway, J. S.
Huey, G.
Jimenez, J. L.
Lack, D. A.
Liao, J.
Liu, X.
Markovic, M. Z.
Middlebrook, A. M.
Mikoviny, T.
Peischl, J.
Perring, A. E.
Richardson, M. S.
Ryerson, T. B.
Schwarz, J. P.
Warneke, C.
Welti, A.
Wisthaler, A.
Ziemba, L. D.
Murphy, D. M.
TI In situ vertical profiles of aerosol extinction, mass, and composition
over the southeast United States during SENEX and SEAC(4)RS:
observations of a modest aerosol enhancement aloft (vol 15, pg 7085,
2015)
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Correction
C1 [Wagner, N. L.; Brock, C. A.; Angevine, W. M.; de Gouw, J. A.; Gordon, T. D.; Graus, M. G.; Holloway, J. S.; Lack, D. A.; Liao, J.; Markovic, M. Z.; Middlebrook, A. M.; Peischl, J.; Perring, A. E.; Richardson, M. S.; Ryerson, T. B.; Schwarz, J. P.; Warneke, C.; Welti, A.; Murphy, D. M.] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA.
[Wagner, N. L.; Angevine, W. M.; Campuzano-Jost, P.; Day, D. A.; de Gouw, J. A.; Gordon, T. D.; Graus, M. G.; Holloway, J. S.; Jimenez, J. L.; Lack, D. A.; Liao, J.; Markovic, M. Z.; Peischl, J.; Perring, A. E.; Richardson, M. S.; Schwarz, J. P.; Warneke, C.; Welti, A.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Beyersdorf, A.; Diskin, G. S.; Ziemba, L. D.] NASA, Langley Res Ctr, Hampton, VA 23681 USA.
[Campuzano-Jost, P.; Day, D. A.; Jimenez, J. L.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Huey, G.; Liu, X.] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA.
[Mikoviny, T.] Oak Ridge Associated Univ, Oak Ridge, TN USA.
[Welti, A.] Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland.
[Wisthaler, A.] Univ Innsbruck, Inst Ion Phys & Appl Phys, A-6020 Innsbruck, Austria.
RP Wagner, NL (reprint author), NOAA, Earth Syst Res Lab, 325 Broadway, Boulder, CO 80305 USA.
EM nick.wagner@noaa.gov
RI Murphy, Daniel/J-4357-2012; Perring, Anne/G-4597-2013; Jimenez,
Jose/A-5294-2008; Warneke, Carsten/E-7174-2010; schwarz,
joshua/G-4556-2013
OI Murphy, Daniel/0000-0002-8091-7235; Perring, Anne/0000-0003-2231-7503;
Jimenez, Jose/0000-0001-6203-1847; schwarz, joshua/0000-0002-9123-2223
NR 1
TC 1
Z9 1
U1 1
U2 13
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2015
VL 15
IS 14
BP 8455
EP 8455
DI 10.5194/acp-15-8455-2015
PG 1
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CN9VS
UT WOS:000358799000038
ER
PT S
AU Baramsai, B
Becvar, F
Bredeweg, TA
Haight, RC
Jandel, M
Kroll, J
Krticka, M
Mitchell, GE
O'Donnell, JM
Rundberg, RS
Ullmann, JL
Valenta, S
Wilhelmy, JB
AF Baramsai, B.
Becvar, F.
Bredeweg, T. A.
Haight, R. C.
Jandel, M.
Kroll, J.
Krticka, M.
Mitchell, G. E.
O'Donnell, J. M.
Rundberg, R. S.
Ullmann, J. L.
Valenta, S.
Wilhelmy, J. B.
BE Schwengner, R
Zuber, K
TI Scissors Mode of Dy-162 Studied from Resonance Neutron Capture
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID EXCITATION MODE; GAMMA-CASCADES; DANCE ARRAY; SCATTERING; NUCLEI; GD-156
AB Multi-step cascade gamma-ray spectra from the neutron capture at isolated resonances of Dy-161 nucleus were measured at the LANSCE/DANCE time-of-flight facility in Los Alamos National Laboratory. The objectives of this experiment were to confirm and possibly extend the spin assignment of s-wave neutron resonances and get new information on photon strength functions with emphasis on the role of the M1 scissors mode vibration. The preliminary results show that the scissors mode plays a significant role in all transitions between accessible states of the studied nucleus. The photon strength functions describing well oar data arc compared to results from He-3-induced reactions, (n,gamma) experiments on Gd isotopes, and (gamma,gamma') reactions.
C1 [Baramsai, B.; Bredeweg, T. A.; Haight, R. C.; Jandel, M.; O'Donnell, J. M.; Rundberg, R. S.; Ullmann, J. L.; Wilhelmy, J. B.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Becvar, F.; Kroll, J.; Krticka, M.; Valenta, S.] Charles Univ Prague, CZ-18000 Prague 8, Czech Republic.
[Kroll, J.; Mitchell, G. E.] N Carolina State Univ, Raleigh, NC 27695 USA.
[Mitchell, G. E.] Triangle Univ Nucl Lab, Durham, NC 27708 USA.
RP Baramsai, B (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM valenta@ipnp.troja.mff.cuni.cz
NR 25
TC 1
Z9 1
U1 2
U2 6
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 01037
DI 10.1051/epjconf/20159301037
PG 3
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500037
ER
PT S
AU Bucher, B
Fang, X
Tang, XD
Tan, WP
Almaraz-Calderon, S
Alongi, A
Ayangeakaa, AD
Beard, M
Best, A
Browne, J
Cahillane, C
Couder, M
Dahlstrom, E
Davies, P
deBoer, R
Kontos, A
Lamm, L
Long, A
Lu, W
Lyons, S
Ma, C
Moncion, A
Notani, M
Patel, D
Paul, N
Pignatari, M
Roberts, A
Robertson, D
Smith, K
Stech, E
Talwar, R
Thomas, S
Wiescher, M
AF Bucher, B.
Fang, X.
Tang, X. D.
Tan, W. P.
Almaraz-Calderon, S.
Alongi, A.
Ayangeakaa, A. D.
Beard, M.
Best, A.
Browne, J.
Cahillane, C.
Couder, M.
Dahlstrom, E.
Davies, P.
deBoer, R.
Kontos, A.
Lamm, L.
Long, A.
Lu, W.
Lyons, S.
Ma, C.
Moncion, A.
Notani, M.
Patel, D.
Paul, N.
Pignatari, M.
Roberts, A.
Robertson, D.
Smith, K.
Stech, E.
Talwar, R.
Thomas, S.
Wiescher, M.
BE Schwengner, R
Zuber, K
TI Constraining the C-12+C-12 fusion cross section for astrophysics
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID MASSIVE STARS; ELASTIC-SCATTERING; ENERGIES; CARBON; C-12;
NUCLEOSYNTHESIS; RESONANCES; FE-60; AL-26
AB The C-12+C-12 reaction is one of the single most important nuclear reactions in astrophysics. It strongly influences late evolution of massive stars as well as the dynamics of type Ia supernovae and x-ray superbursts. An accurate estimation of the cross section at relevant astrophysical energies is extremely important for modeling these systems. However, the situation is complicated by the unpredictable resonance structure observed at higher energies. Two recent studies at Notre Dame have produced results which help reduce the uncertainty associated with this reaction. The first uses correlations with the isotope fusion systems, C-12+C-13 and C-13+C-13, to establish an upper limit on the resonance strengths in C-12+C-12. The other focuses on the specific channel C-12+C-12 -> Mg-23+n and its low-energy measurement and extrapolation which is relevant to s-process nucleosynthesis. The results from each provide important constraints for astrophysical models.
C1 [Bucher, B.; Fang, X.; Tang, X. D.; Tan, W. P.; Almaraz-Calderon, S.; Alongi, A.; Ayangeakaa, A. D.; Beard, M.; Best, A.; Browne, J.; Cahillane, C.; Couder, M.; Dahlstrom, E.; Davies, P.; deBoer, R.; Kontos, A.; Lamm, L.; Long, A.; Lu, W.; Lyons, S.; Ma, C.; Moncion, A.; Notani, M.; Patel, D.; Paul, N.; Roberts, A.; Robertson, D.; Smith, K.; Stech, E.; Talwar, R.; Thomas, S.; Wiescher, M.] Notre Dame Univ, Nucl Sci Lab, Notre Dame, IN 46566 USA.
[Bucher, B.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Tang, X. D.] Chinese Acad Sci, Inst Modern Phys, Lanzhou, Peoples R China.
[Pignatari, M.] Univ Basel, Dept Phys, CH-4056 Basel, Switzerland.
RP Bucher, B (reprint author), Notre Dame Univ, Nucl Sci Lab, Notre Dame, IN 46566 USA.
EM bucher3@llnl.gov
RI Tang, Xiaodong /F-4891-2016; Couder, Manoel/B-1439-2009; Tan,
Wanpeng/A-4687-2008;
OI Couder, Manoel/0000-0002-0636-744X; Tan, Wanpeng/0000-0002-5930-1823;
Ayangeakaa, Akaa D./0000-0003-1679-3175
NR 27
TC 0
Z9 0
U1 0
U2 9
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 03009
DI 10.1051/epjconf/20159303009
PG 5
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500086
ER
PT S
AU Couture, A
Mosby, S
Baramsai, B
Bredeweg, TA
Jandel, M
Macon, K
O'Donnell, JM
Rusev, G
Taddeucci, TN
Ullmann, JL
Walker, CL
AF Couture, A.
Mosby, S.
Baramsai, B.
Bredeweg, T. A.
Jandel, M.
Macon, K.
O'Donnell, J. M.
Rusev, G.
Taddeucci, T. N.
Ullmann, J. L.
Walker, C. L.
BE Schwengner, R
Zuber, K
TI Enhancing the Detector for Advanced Neutron Capture Experiments
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID DANCE
AB The Detector for Advanced Neutron Capture Experiments (DANCE) has been used for extensive studies of neutron capture, gamma decay, photon strength functions, and prompt and delayed fission-gamma emission. Despite these successes, the potential measurements have been limited by the data acquisition hardware. We report on a major upgrade of the DANCE data acquisition that simultaneously enables strait-forward coupling to auxiliary detectors, including high-resolution high-purity germanium detectors and neutron tagging array. The upgrade will enhance the time domain accessible for time-of-flight neutron measurements as well as improve the resolution in the DANCE barium fluoride crystals for photons.
C1 [Couture, A.; Mosby, S.; Baramsai, B.; Bredeweg, T. A.; Jandel, M.; O'Donnell, J. M.; Rusev, G.; Taddeucci, T. N.; Ullmann, J. L.; Walker, C. L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Macon, K.] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA.
RP Couture, A (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM acouture@lanl.gov
OI Rusev, Gencho/0000-0001-7563-1518
NR 16
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 07003
DI 10.1051/epjconf/20159307003
PG 3
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500106
ER
PT S
AU Crider, BP
Peters, EE
Ross, TJ
McEllistrem, MT
Prados-Estevez, FM
Allmond, JM
Vanhoy, JR
Yates, SW
AF Crider, B. P.
Peters, E. E.
Ross, T. J.
McEllistrem, M. T.
Prados-Estevez, F. M.
Allmond, J. M.
Vanhoy, J. R.
Yates, S. W.
BE Schwengner, R
Zuber, K
TI Inelastic neutron scattering studies of Ge-76 and Se-76: relevance to
neutrinoless double-beta decay
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID ATOMIC-NUCLEI
AB Inelastic neutron scattering measurements were performed at the University of Kentucky Accelerator Laboratory on enriched Ge-76 and Se-76 scattering samples. From measurements at incident neutron energies from 2.0 to 4.0 MeV, many new levels were identified and characterized in each nucleus; level lifetimes, transition probabilities, multipole mixing ratios, and other properties were determined. In addition, gamma-ray cross sections for the Ge-76(n,n'gamma) reaction were measured at neutron energies up to 5.0 MeV, with the goal of determining the cross sections of gamma rays in 2040-keV region, which corresponds to the region of interest in the neutrinoless double beta decay of Ge-76. Gamma rays from the three strongest branches from the 3952-keV level were observed, but the previously reported 2041-keV gamma ray was not. Population cross sections across the range of incident neutron energies were determined for the 3952-keV level, resulting in a cross section of similar to 0.1 mb for the 2041-keV branch using the previously determined branching ratios. Beyond this, the data from these experiments indicate that previously unreported gamma rays from levels in Ge-76 can be found in the 2039-keV region.
C1 [Crider, B. P.; Ross, T. J.; McEllistrem, M. T.; Prados-Estevez, F. M.; Vanhoy, J. R.; Yates, S. W.] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
[Peters, E. E.; Ross, T. J.; Prados-Estevez, F. M.; Vanhoy, J. R.; Yates, S. W.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA.
[Allmond, J. M.] Oak Ridge Natl Lab, Joint Inst Nucl Phys & Applicat, Oak Ridge, TN 37831 USA.
[Vanhoy, J. R.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
RP Yates, SW (reprint author), Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
EM yates@uky.edu
NR 25
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 05001
DI 10.1051/epjconf/20159305001
PG 5
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500096
ER
PT S
AU Delaune, O
Blanc, A
Burke, JT
Casperson, R
Huu-Tai, PC
McCleskey, E
McCleskey, M
Meot, V
Roig, O
Saastamoinen, A
AF Delaune, O.
Blanc, A.
Burke, J. T.
Casperson, R.
Huu-Tai, P. Chau
McCleskey, E.
McCleskey, M.
Meot, V.
Roig, O.
Saastamoinen, A.
BE Schwengner, R
Zuber, K
TI Measurement of the gamma emission probability of Yb-173 using surrogate
reactions
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID FISSION CROSS-SECTIONS
AB We performed the Yb-174(p,d) reaction in order to measure the gamma-emission probability of Yb-173. The identification of the ejectiles allowing us to tag the production of Yb-173 nuclei was performed using the STARLiTeR detector system. Unusually, the "statistical" y-rays were used to determined the gammaemission probability and a spin distribution was extracted from it. A comparison with the spin distribution from the Yb-174(He-3,alpha) reaction shows that the transferred angular momentum is similar in both reactions.
C1 [Delaune, O.; Blanc, A.; Huu-Tai, P. Chau; Meot, V.; Roig, O.] CEA, DAM, DIF, F-91297 Arpajon, France.
[Burke, J. T.; Casperson, R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[McCleskey, E.; McCleskey, M.; Saastamoinen, A.] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA.
RP Delaune, O (reprint author), CEA, DAM, DIF, F-91297 Arpajon, France.
EM olivier.delaune@cea.fr
NR 13
TC 0
Z9 0
U1 2
U2 8
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 02010
DI 10.1051/epjconf/20159302010
PG 3
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500065
ER
PT S
AU Dimitriou, P
Firestone, RB
Siem, S
Becvar, F
Krticka, M
Varlamov, VV
Wiedeking, M
AF Dimitriou, Paraskevi
Firestone, Richard B.
Siem, Sunniva
Becvar, Frantisek
Krticka, Milan
Varlamov, Vladimir V.
Wiedeking, Mathis
BE Schwengner, R
Zuber, K
TI Updated Photonuclear Data Library and Database for Photon Strength
Functions
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
AB Photonuclear cross sections and gamma-ray data used to extract Photon Strength Functions are important for a large range of applications including basic sciences. The recommendations of an IAEA Consultant's Meeting to update the IAEA Photonuclear Data Library and create a Reference Database for Photon Strength Functions are presented.
C1 [Dimitriou, Paraskevi] IAEA, Nucl Data Sect, A-1400 Vienna, Austria.
[Firestone, Richard B.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Siem, Sunniva] Univ Oslo, Dept Phys, N-0316 Oslo, Norway.
[Becvar, Frantisek; Krticka, Milan] Charles Univ Prague, CR-18000 Prague, Czech Republic.
[Varlamov, Vladimir V.] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, CDFE, Moscow 119991, Russia.
[Wiedeking, Mathis] iThemba LABS, ZA-7129 Somerset West, South Africa.
RP Dimitriou, P (reprint author), IAEA, Nucl Data Sect, A-1400 Vienna, Austria.
EM P.Dimitriou@iaea.org
RI Varlamov, Vladimir/D-7137-2012
NR 9
TC 0
Z9 0
U1 1
U2 7
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 06004
DI 10.1051/epjconf/20159306004
PG 3
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500102
ER
PT S
AU Firestone, RB
AF Firestone, R. B.
BE Schwengner, R
Zuber, K
TI Failure of the Gross Theory of Beta Decay in Neutron Deficient Nuclei
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID SEPARATOR
AB The neutron deficient isotopes Xe117-121, Cs117-124, and Ba122-124 were produced by a beam of Si-28 from the LBNL SuperHILAC on a target of Mo-nat. The isotopes were mass separated and their beta decay schemes were measured with a Total Absorption Spectrometer (TAS). The beta strengths derived from these data decreased dramatically to levels above approximate to 1 MeV for the even-even decays; 3-4 MeV for even-Z, odd-N decays; 4-5 MeV for the odd-Z, even-N decays; and 7-8 MeV for the odd-Z, odd-N decays. The decreasing strength to higher excitation energies in the daughters contradicts the predictions of the Gross Theory of Beta Decay. The integrated beta strengths are instead found to be consistent with shell model predictions where the single-particle beta strengths are divided amoung many low-lying levels. The experimental beta strengths determined here have been used calculate the half-lives of 143 neutron deficient nuclei with Z=51-64 to a precision of 20% with respect to the measured values.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Firestone, RB (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM rbfirestone@lbl.gov
NR 16
TC 0
Z9 0
U1 0
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 01023
DI 10.1051/epjconf/20159301023
PG 3
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500023
ER
PT S
AU Giacoppo, F
Garrote, FLB
Eriksen, TK
Gorgen, A
Guttormsen, M
Hagen, TW
Larsen, AC
Kheswa, BV
Klintefjord, M
Koehler, PE
Moretto, LG
Nyhus, HT
Renstrom, T
Sahin, E
Siem, S
Tornyi, TG
AF Giacoppo, F.
Garrote, F. L. Bello
Eriksen, T. K.
Goergen, A.
Guttormsen, M.
Hagen, T. W.
Larsen, A. C.
Kheswa, B. V.
Klintefjord, M.
Koehler, P. E.
Moretto, L. G.
Nyhus, H. T.
Renstrom, T.
Sahin, E.
Siem, S.
Tornyi, T. G.
BE Schwengner, R
Zuber, K
TI Observation of low-lying resonances in the quasicontinuum of
Pt-195,Pt-196 and enhanced astrophysical reaction rates
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID GAMMA-RAY SPECTRA; STRENGTH FUNCTION; DIPOLE RESONANCE; LEVEL DENSITY;
R-PROCESS; NUCLEI; NUCLEOSYNTHESIS; PT-196; MODEL
AB An excess of strength on the low-energy tail of the giant dipole resonance recently has been observed in the gamma-decay from the quasicontinuum of Pt-195,Pt-196. The nature of this phenomenon is not yet fully investigated. If this feature is present also in the gamma-ray strength of the neutron-rich isotopes, it can affect the neutron-capture reactions involved in the formation of heavy-elements in stellar nucleosynthesis. The experimental level density and gamma-ray strength function of Pt-195,Pt-196 are presented together with preliminary calculations of the corresponding neutron-capture cross sections.
C1 [Giacoppo, F.; Garrote, F. L. Bello; Eriksen, T. K.; Goergen, A.; Guttormsen, M.; Hagen, T. W.; Larsen, A. C.; Kheswa, B. V.; Klintefjord, M.; Nyhus, H. T.; Renstrom, T.; Sahin, E.; Siem, S.; Tornyi, T. G.] Univ Oslo, Dept Phys, N-0316 Oslo, Norway.
[Kheswa, B. V.] Univ Stellenbosch, Dept Phys, ZA-7602 Stellenbosch, South Africa.
[Koehler, P. E.] Air Force Tech Applicat Ctr, Patrick AFB, FL USA.
[Moretto, L. G.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Tornyi, T. G.] Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary.
RP Giacoppo, F (reprint author), Univ Oslo, Dept Phys, POB 1048, N-0316 Oslo, Norway.
EM francesca.giacoppo@fys.uio.no
RI Larsen, Ann-Cecilie/C-8742-2014;
OI Larsen, Ann-Cecilie/0000-0002-2188-3709; Gorgen,
Andreas/0000-0003-1916-9941
NR 31
TC 1
Z9 1
U1 1
U2 9
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 01039
DI 10.1051/epjconf/20159301039
PG 5
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500039
ER
PT S
AU Isaak, J
Loher, B
Savran, D
Aumann, T
Beller, J
Cooper, N
Derya, V
Duchene, M
Endres, J
Fiori, E
Kelley, JH
Knorzer, M
Pietralla, N
Ponomarev, VY
Romig, C
Scheck, M
Scheit, H
Silva, J
Tonchev, AP
Tornow, W
Weller, HR
Werner, V
Zilges, A
Zweidinger, M
AF Isaak, J.
Loeher, B.
Savran, D.
Aumann, T.
Beller, J.
Cooper, N.
Derya, V.
Duchene, M.
Endres, J.
Fiori, E.
Kelley, J. H.
Knoerzer, M.
Pietralla, N.
Ponomarev, V. Yu.
Romig, C.
Scheck, M.
Scheit, H.
Silva, J.
Tonchev, A. P.
Tornow, W.
Weller, H. R.
Werner, V.
Zilges, A.
Zweidinger, M.
BE Schwengner, R
Zuber, K
TI Decay pattern of the Pygmy Dipole Resonance in Ce-140
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID HI-GAMMA-S; STRENGTH
AB The decay behavior of low-lying dipole states in Ce-140 was investigated exploiting the gamma(3)-setup at the HI gamma S facility using quasi-monochromatic photon beams. Branching ratios of individual excited states as well as average branching ratios to low-lying states have been extracted using gamma-gamma coincidence measurements. The comparison of the average branching ratios to QPM calculations shows a remarkable agreement between experiment and theory in the energy range from 5.0 to 8.5 MeV.
C1 [Isaak, J.; Loeher, B.; Savran, D.; Fiori, E.; Silva, J.] GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, Darmstadt, Germany.
[Isaak, J.; Loeher, B.; Savran, D.; Fiori, E.; Silva, J.] GSI Helmholtzzentrum Schwerionenforsch, Div Res, Darmstadt, Germany.
[Isaak, J.; Loeher, B.; Savran, D.; Fiori, E.; Silva, J.] Frankfurt Inst Adv Studies, Frankfurt, Germany.
[Aumann, T.; Beller, J.; Duchene, M.; Knoerzer, M.; Pietralla, N.; Ponomarev, V. Yu.; Romig, C.; Scheit, H.; Werner, V.; Zweidinger, M.] Tech Univ Darmstadt, Inst Kernphys, Darmstadt, Germany.
[Aumann, T.] GSI Helmholtzzentrum Schwerionenforsch, Darmstadt, Germany.
[Cooper, N.; Werner, V.] Yale Univ, WNSL, New Haven, CT USA.
[Derya, V.; Endres, J.; Zilges, A.] Univ Cologne, Inst Kernphys, Cologne, Germany.
[Kelley, J. H.; Tornow, W.; Weller, H. R.] Duke Univ, Dept Phys, Triangle Univ Nucl Lab, Durham, NC 27706 USA.
[Kelley, J. H.] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA.
[Scheck, M.] Univ West Scotland, Sch Engn, Paisley, Renfrew, Scotland.
[Scheck, M.] Scottish Univ Phys Alliance, Glasgow, Lanark, Scotland.
[Tonchev, A. P.] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA USA.
RP Isaak, J (reprint author), GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, Darmstadt, Germany.
EM j.isaak@gsi.de
NR 22
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 01048
DI 10.1051/epjconf/20159301048
PG 2
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500048
ER
PT S
AU Jandel, M
Baramsai, B
Bredeweg, TA
Couture, A
Hayes, A
Kawano, T
Mosby, S
Rusev, G
Stetcu, I
Taddeucci, TN
Talou, P
Ullmann, JL
Walker, CL
Wilhelmy, JB
AF Jandel, M.
Baramsai, B.
Bredeweg, T. A.
Couture, A.
Hayes, A.
Kawano, T.
Mosby, S.
Rusev, G.
Stetcu, I.
Taddeucci, T. N.
Talou, P.
Ullmann, J. L.
Walker, C. L.
Wilhelmy, J. B.
BE Schwengner, R
Zuber, K
TI Current and Future Research at DANCE
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
AB An overview of the current experimental program on measurements of neutron capture and neutron induced fission at the Detector for Advanced Neutron Capture Experiments (DANCE) is presented. Three major projects are currently under way: 1) high precision measurements of neutron capture cross sections on Uranium isotopes, 2) research aimed at studies of the short-lived actinide isomer production in neutron capture on 235U and 3) measurements of correlated data of fission observables. New projects include developments of auxiliary detectors to improve the capability of DANCE. We are building a compact, segmented NEUtron detector Array at DANCE (NEUANCE), which will be installed in the central cavity of the DANCE array. It will provide experimental information on prompt fission neutrons in coincidence with the prompt fission gamma-rays measured by 160 BaF2 crystals of DANCE. Unique correlated data will be obtained for neutron capture and neutron-induced fission using the DANCE-NEUANCE experimental set up in the future.
C1 [Jandel, M.; Baramsai, B.; Bredeweg, T. A.; Couture, A.; Hayes, A.; Kawano, T.; Mosby, S.; Rusev, G.; Stetcu, I.; Taddeucci, T. N.; Talou, P.; Ullmann, J. L.; Walker, C. L.; Wilhelmy, J. B.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Jandel, M (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM mjandel@lanl.gov
OI Rusev, Gencho/0000-0001-7563-1518
NR 20
TC 1
Z9 1
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 02019
DI 10.1051/epjconf/20159302019
PG 5
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500074
ER
PT S
AU Koehler, PE
Becvar, F
Krticka, M
AF Koehler, P. E.
Becvar, F.
Krticka, M.
BE Schwengner, R
Zuber, K
TI Distribution of total radiation widths for neutron resonances of Pt
isotopes
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
AB High quality neutron capture and transmission data were measured on isotopically enriched Pt-192,Pt-194,Pt-195,Pt-196 and natural Pt samples at ORELA. R-matrix analysis of this data revealed resonance parameters for 159, 413, 423, 258, and 11 neutron resonances for neutron energies below 5.0, 16.0, 7.5, 16.0, and 5.0 keV for Pt-192,Pt-194,Pt-195,Pt-196,Pt-198+ n, respectively. Earlier analysis of data on reduced neutron widths, Gamma(0)(n), showed that the distributions of Gamma(0)(n) for Pt-192,Pt-194 deviate significantly from the Porter-Thomas distribution (PTD) predicted by random matrix theory. In this contribution we report on preliminary results of the analysis of distribution of total radiation widths, Gamma(gamma) in Pt-192,Pt-194,Pt-195,Pt-196+n reactions. Comparison of experimental data with predictions made within the nuclear statistical model indicates that standard models of Photon Strength Functions (PSFs) and Nuclear Level Density predict Gamma(gamma) distributions which are too narrow. We found that satisfactory agreement between experimental and simulated distributions can be obtained only by a strong suppression of the PSFs at low gamma-ray energies and/or by violation of the usual assumption that primary transitions from neutron resonances follow the PTD. The shape of PSFs needed for reproduction of our Gamma(gamma) data also nicely reproduces spectra from several (n,gamma) experiments on the neighbor nuclide Au-198.
C1 [Koehler, P. E.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
[Koehler, P. E.] Univ Oslo, Dept Phys, N-0316 Oslo, Norway.
[Becvar, F.; Krticka, M.] Charles Univ Prague, CR-18000 Prague 8, Czech Republic.
RP Koehler, PE (reprint author), Air Force Tech Applicat Ctr, Patrick AFB, FL 32925 USA.
EM paul.koehler.1@us.af.mil
OI Koehler, Paul/0000-0002-6717-0771
NR 9
TC 0
Z9 0
U1 0
U2 5
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 01049
DI 10.1051/epjconf/20159301049
PG 2
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500049
ER
PT S
AU Merchan, E
Moran, K
Lister, CJ
Chowdhury, P
McCutchan, EA
Greene, JP
Zhu, S
Lauritsen, T
Carpenter, MP
Shearman, R
AF Merchan, E.
Moran, K.
Lister, C. J.
Chowdhury, P.
McCutchan, E. A.
Greene, J. P.
Zhu, S.
Lauritsen, T.
Carpenter, M. P.
Shearman, R.
BE Schwengner, R
Zuber, K
TI Ba-137 Double Gamma Decay Measurement with GAMMASPHERE
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
AB The study of the electromagnetic moments (EM), and decay probability, provides detailed information about nuclear wave functions. The well-know properties of EM interactions are good for extracting information about the motion of nucleons. Higher order EM processes always occur, but are usually too weak to be measured. In the case of a 0(+) -> 0(+) transitions [1, 2], where a single gamma transition is forbidden, the simultaneous emission of two gamma-rays has been studied. An interesting opportunity to further investigate 2-photon emission phenomena is by using a standard Cs-137 source populating, via beta-decay, the J(pi) = 11/2(-) isomeric state at 662 keV in Ba-137. In this case, two photon process can have contributions from quadrupole-quadrupole or dipole-octupole multipolarities in direct competition with the high multipolarity M4 decay. Since the yield of the double gamma decay is around six orders of magnitude less than the first order transition, very good statistics are needed in order to observe the phenomena and great care must be taken to suppress the first-order decay. The Gammasphere array is ideal since its configuration allows a good coverage of the angular distribution and the Compton events can be suppressed. Nevertheless the process to understand and eliminate the Compton background is a challenge. Geant4 simulations were carried out to help understand and correct for those factors.
C1 [Merchan, E.; Moran, K.; Lister, C. J.; Chowdhury, P.; Shearman, R.] Univ Massachusetts Lowell, Dept Phys, Lowell, MA 01854 USA.
[McCutchan, E. A.] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA.
[Greene, J. P.; Zhu, S.; Lauritsen, T.; Carpenter, M. P.] Argonne Natl Lab, Div Phys, Lemont, IL 60473 USA.
[Shearman, R.] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England.
RP Merchan, E (reprint author), Univ Massachusetts Lowell, Dept Phys, Lowell, MA 01854 USA.
EM edanakarina_merchanrodriguez@uml.edu
RI Carpenter, Michael/E-4287-2015
OI Carpenter, Michael/0000-0002-3237-5734
NR 7
TC 0
Z9 0
U1 0
U2 2
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 01033
DI 10.1051/epjconf/20159301033
PG 4
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500033
ER
PT S
AU Ota, S
Burke, JT
Casperson, RJ
Escher, JE
Hughes, RO
Ressler, JJ
Scielzo, ND
Thompson, I
Austin, RAE
McCleskey, E
McCleskey, M
Saastamoinen, A
Ross, T
AF Ota, Shuya
Burke, J. T.
Casperson, R. J.
Escher, J. E.
Hughes, R. O.
Ressler, J. J.
Scielzo, N. D.
Thompson, I.
Austin, R. A. E.
McCleskey, E.
McCleskey, M.
Saastamoinen, A.
Ross, T.
BE Schwengner, R
Zuber, K
TI Y-87(n,gamma) and (89'9)0Zr(n,gamma) cross sections from a surrogate
reaction approach
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID FISSION; NUCLEI
AB The surrogate reaction approach is an indirect method for determining nuclear reaction cross sections which cannot be measured directly or predicted reliably. While recent studies demonstrated the validity of the surrogate reaction approach for studying fission cross sections for short-lived actinides, its applicability for radiative neutron capture reactions ((n,y)) is still under investigation. We studied the y decay of excited Y-88 and (90'9)1Zr nuclei produced by Y-89(p,d), Zr-91(p,d), and Zr-92(p,d) reactions, respectively, in order to infer the 87Y(n,y) and (89)' Zr-90(n,y) cross sections. The experiments were carried out at the K150 Cyclotron facility at Texas A&M University with a 28.5-MeV proton beam. The reaction deuterons were measured at forward angles of 25-60 with the array of three segmented Micron S2 silicon detectors. The compound nuclei with energies up to a few MeV above the neutron separation thresholds were populated. The coincident y-rays were measured with the array of five Compton-suppressed HPGe clover detectors.
C1 [Ota, Shuya; Burke, J. T.; Casperson, R. J.; Escher, J. E.; Hughes, R. O.; Ressler, J. J.; Scielzo, N. D.; Thompson, I.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Austin, R. A. E.] St Marys Univ, Halifax, NS B3H 3C3, Canada.
[McCleskey, E.; McCleskey, M.; Saastamoinen, A.] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA.
[Ross, T.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA.
RP Ota, S (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM ota2@llnl.gov
NR 20
TC 3
Z9 3
U1 0
U2 7
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 02001
DI 10.1051/epjconf/20159302001
PG 5
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500056
ER
PT S
AU Pietralla, N
Moller, T
Lister, CJ
McCutchan, EA
Rainovski, G
Bauer, C
Carpenter, MP
Janssens, RVF
Seweryniak, D
Zhu, S
AF Pietralla, N.
Moeller, T.
Lister, C. J.
McCutchan, E. A.
Rainovski, G.
Bauer, C.
Carpenter, M. P.
Janssens, R. V. F.
Seweryniak, D.
Zhu, S.
BE Schwengner, R
Zuber, K
TI New Information on the Occurrence of the O(6) Symmetry in Nuclei
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID PT-196; REGION
AB New gamma gamma-coincidence relations and E2 decay transition rates in the isotopes Pt-194,Pt-196 have been deduced from gamma-ray spectroscopy experiments using the Gammasphere spectrometer in projectile-Coulomb excitation reactions of beams of Pt-194,Pt-196 ions provided by the ATLAS accelerator facility. The results give access to observables that are crucial for a classification of excited quadrupole-collective states in terms of quantum numbers associated with the analytically solvable O(6) dynamical symmetry of the interacting boson model. The data on Pt-196 corroborate the qualitative pattern of excitation energies and E2 transition rates expected from the O(6) solution but the excitation energies significantly deviate from it on a quantitative level.
C1 [Pietralla, N.; Moeller, T.; Bauer, C.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany.
[Lister, C. J.; McCutchan, E. A.; Carpenter, M. P.; Janssens, R. V. F.; Seweryniak, D.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Lister, C. J.] Univ Massachusetts Lowell, Dept Phys & Appl Phys, Lowell, MA 01854 USA.
[McCutchan, E. A.] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA.
[Rainovski, G.] Sofia Univ St Kliment Ohridski, Fac Phys, Sofia 1164, Bulgaria.
RP Pietralla, N (reprint author), Tech Univ Darmstadt, Inst Kernphys, Schlossgartenstr 9, D-64289 Darmstadt, Germany.
EM pietralla@ikp.tu-darmstadt.de
RI Carpenter, Michael/E-4287-2015; Rainovski, Georgi/A-3450-2008
OI Carpenter, Michael/0000-0002-3237-5734; Rainovski,
Georgi/0000-0002-1729-0249
NR 8
TC 0
Z9 0
U1 0
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 01002
DI 10.1051/epjconf/20159301002
PG 3
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500002
ER
PT S
AU Ratkiewicz, A
Cizewski, JA
Pain, SD
Adekola, AS
Burke, JT
Casperson, RJ
Fotiades, N
McCleskey, M
Burcher, S
Shand, CM
Austin, RAE
Baugher, T
Carpenter, MP
Devlin, M
Escher, JE
Hardy, S
Hatarik, R
Howard, ME
Hughes, RO
Jones, KL
Kozub, RL
Lister, CJ
Manning, B
Donnell, JMO
Peters, WA
Ross, TJ
Scielzo, ND
Seweryniak, D
Zhu, S
AF Ratkiewicz, A.
Cizewski, J. A.
Pain, S. D.
Adekola, A. S.
Burke, J. T.
Casperson, R. J.
Fotiades, N.
McCleskey, M.
Burcher, S.
Shand, C. M.
Austin, R. A. E.
Baugher, T.
Carpenter, M. P.
Devlin, M.
Escher, J. E.
Hardy, S.
Hatarik, R.
Howard, M. E.
Hughes, R. O.
Jones, K. L.
Kozub, R. L.
Lister, C. J.
Manning, B.
Donnell, J. M. O.
Peters, W. A.
Ross, T. J.
Scielzo, N. D.
Seweryniak, D.
Zhu, S.
BE Schwengner, R
Zuber, K
TI Validating (d,p gamma) as a Surrogate for Neutron Capture
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID CROSS-SECTIONS; GAMMASPHERE
AB The r-process is responsible for creating roughly half of the elements heavier than iron. It has recently become understood that the rates at which neutron capture reactions proceed at late times in the rprocess may dramatically affect the final abundance pattern. However, direct measurements of neutron capture reaction rates on exotic nuclei are exceptionally difficult, necessitating the development of indirect approaches such as the surrogate technique. The (d,py) reaction at low energies was identified as a promising surrogate for the (n,y) reaction, as both reactions share many characteristics. We report on a program to validate (d,py) as a surrogate for (n,y) using 95Mo as a target. The experimental campaign includes direct measurements of the y-ray intensities from the decay of excited states populated in the 95Mo(n,y) and 95Mo(d,py) reactions.
C1 [Ratkiewicz, A.; Cizewski, J. A.; Adekola, A. S.; Burcher, S.; Shand, C. M.; Baugher, T.; Hardy, S.; Howard, M. E.; Manning, B.] Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08903 USA.
[Pain, S. D.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Burke, J. T.; Casperson, R. J.; Escher, J. E.; Hatarik, R.; Scielzo, N. D.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Fotiades, N.; Devlin, M.; Donnell, J. M. O.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[McCleskey, M.] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA.
[Shand, C. M.; Hardy, S.] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England.
[Austin, R. A. E.] St Marys Univ, Dept Phys & Astron, Halifax, NS BH3 3C3, Canada.
[Carpenter, M. P.; Seweryniak, D.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Hughes, R. O.; Ross, T. J.] Univ Richmond, Dept Phys, Richmond, VA 23173 USA.
[Jones, K. L.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Kozub, R. L.] Tennessee Technol Univ, Dept Phys, Cookeville, TN 38505 USA.
[Lister, C. J.] Univ Massachusetts Lowell, Dept Phys & Appl Phys, Lowell, MA 01854 USA.
[Peters, W. A.] Oak Ridge Associated Univ, Oak Ridge, TN 37831 USA.
RP Ratkiewicz, A (reprint author), Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08903 USA.
EM a.ratkiewicz@rutgers.edu
RI Carpenter, Michael/E-4287-2015; Jones, Katherine/B-8487-2011; Pain,
Steven/E-1188-2011; Peters, William/B-3214-2012; Devlin,
Matthew/B-5089-2013;
OI Carpenter, Michael/0000-0002-3237-5734; Jones,
Katherine/0000-0001-7335-1379; Pain, Steven/0000-0003-3081-688X; Peters,
William/0000-0002-3022-4924; Devlin, Matthew/0000-0002-6948-2154;
Fotiadis, Nikolaos/0000-0003-1410-3871
NR 19
TC 2
Z9 2
U1 0
U2 8
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 02012
DI 10.1051/epjconf/20159302012
PG 5
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500067
ER
PT S
AU Renstrom, T
Nyhus, HT
Utsunomiya, H
Larsen, AC
Siem, S
Guttormsen, M
Filipescu, DM
Gheorghe, I
Goriely, S
Bernstein, LA
Bleuel, DL
Glodariu, T
Gorgen, A
Hagen, TW
Lui, YW
Negi, D
Ruud, IE
Sahin, E
Schwengner, R
Shima, T
Takahisa, K
Tesileanu, O
Tornyi, TG
Tveten, GM
Wiedeking, M
AF Renstrom, T.
Nyhus, H. -T.
Utsunomiya, H.
Larsen, A. C.
Siem, S.
Guttormsen, M.
Filipescu, D. M.
Gheorghe, I.
Goriely, S.
Bernstein, L. A.
Bleuel, D. L.
Glodariu, T.
Goergen, A.
Hagen, T. W.
Lui, Y. -W.
Negi, D.
Ruud, I. E.
Sahin, E.
Schwengner, R.
Shima, T.
Takahisa, K.
Tesileanu, O.
Tornyi, T. G.
Tveten, G. M.
Wiedeking, M.
BE Schwengner, R
Zuber, K
TI First evidence of low energy enhancement in Ge isotopes
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID GIANT DIPOLE RESONANCE; MONOENERGETIC PHOTONS; STRENGTH FUNCTION; GAMMA;
GENERATION; SPECTRA; NUCLEI
AB The gamma-strength functions and level densities of Ge-73,Ge-74 have been extracted from particle-gamma coincidence data using the Oslo method. In addition the gamma-strength function of Ge-74 above the neutron separation threshold, S-n = 10.196 MeV has been extracted from photoneutron measurements. When combined, these two experiments give a gamma-strength function covering the energy range of similar to 1-13 MeV for Ge-74. This thorough investigation of Ge-74 is a part of an international campaign to study the previously reported low energy enhancement in this mass region in the gamma-strength function from similar to 3 MeV towards lower gamma energies. The obtained data show that both Ge-73,Ge-74 display an increase in strength at low gamma energies.
C1 [Renstrom, T.; Nyhus, H. -T.; Larsen, A. C.; Siem, S.; Guttormsen, M.; Goergen, A.; Hagen, T. W.; Ruud, I. E.; Sahin, E.; Tveten, G. M.] Univ Oslo, Dept Phys, N-0316 Oslo, Norway.
[Utsunomiya, H.] Konan Univ, Dept Phys, Kobe, Hyogo 6588501, Japan.
[Filipescu, D. M.; Gheorghe, I.; Tesileanu, O.] Extreme Light Infrastruct Nucl Phys, Bucharest, Romania.
[Filipescu, D. M.; Gheorghe, I.; Glodariu, T.] Natl Inst Phys & Nucl Engn Horia Hulubei, Bucharest, Romania.
[Gheorghe, I.] Univ Bucharest, Fac Phys, Bucharest, Romania.
[Goriely, S.] ULB, Inst Astron & Astrophys, Brussels, Belgium.
[Bernstein, L. A.; Bleuel, D. L.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Lui, Y. -W.] Texas A&M Univ, Cyclotron Inst, College Stn, TX 77843 USA.
[Negi, D.; Wiedeking, M.] iThemba LABS, ZA-7129 Somerset West, South Africa.
[Schwengner, R.] Helmholtz Zentrum Dresden Rossendorf, Inst Radiat Phys, D-01328 Dresden, Germany.
[Shima, T.] Osaka Univ, Res Ctr Nucl Phys, Suita, Osaka 5670047, Japan.
[Tornyi, T. G.] Hungarian Acad Sci, MTA Atomki, Inst Nucl Res, Debrecen, Hungary.
RP Renstrom, T (reprint author), Univ Oslo, Dept Phys, POB 1048, N-0316 Oslo, Norway.
EM therese.renstrom@fys.uio.no
RI Filipescu, Dan Mihai/C-3789-2011; Larsen, Ann-Cecilie/C-8742-2014;
Gheorghe, Adriana - Ioana/K-3220-2012
OI Filipescu, Dan Mihai/0000-0003-3282-1594; Larsen,
Ann-Cecilie/0000-0002-2188-3709;
NR 36
TC 0
Z9 0
U1 1
U2 5
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 04003
DI 10.1051/epjconf/20159304003
PG 5
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500093
ER
PT S
AU Rusev, G
Jandel, M
Arnold, CW
Bredeweg, TA
Couture, A
Mosby, SM
Ullmann, JL
AF Rusev, G.
Jandel, M.
Arnold, C. W.
Bredeweg, T. A.
Couture, A.
Mosby, S. M.
Ullmann, J. L.
BE Schwengner, R
Zuber, K
TI Detector-Response Correction of Two-Dimensional gamma-Ray Spectra from
Neutron Capture
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
AB The neutron-capture reaction produces a large variety of gamma-ray cascades with different gamma-ray multiplicities. A measured spectral distribution of these cascades for each gamma-ray multiplicity is of importance to applications and studies of gamma-ray statistical properties. The DANCE array, a 4 pi ball of 160 BaF2 detectors, is an ideal tool for measurement of neutron-capture gamma-rays. The high granularity of DANCE enables measurements of high-multiplicity gamma-ray cascades. The measured two-dimensional spectra (gamma-ray energy,gamma-ray multiplicity) have to be corrected for the DANCE detector response in order to compare them with predictions of the statistical model or use them in applications. The detector-response correction problem becomes more difficult for a 4 pi detection system than for a single detector. A trial and error approach and an iterative decomposition of gamma-ray multiplets, have been successfully applied to the detector-response correction. Applications of the decomposition methods are discussed for two-dimensional gamma-ray spectra measured at DANCE from gamma-ray sources and from the B-10(n, gamma) and Cd-113(n, gamma) reactions.
C1 [Rusev, G.; Jandel, M.; Arnold, C. W.; Bredeweg, T. A.; Couture, A.; Mosby, S. M.; Ullmann, J. L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Rusev, G (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM rusev@lanl.gov
OI Rusev, Gencho/0000-0001-7563-1518
NR 7
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 07002
DI 10.1051/epjconf/20159307002
PG 5
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500105
ER
PT S
AU Scheck, M
Gaffney, LP
Butler, PA
Hayes, AB
Wenander, F
Albers, M
Bastin, B
Bauer, C
Blazhev, A
Boenig, S
Bree, N
Cederkall, J
Chupp, T
Cline, D
Cocolios, TE
Davinson, T
De Witte, H
Diriken, J
Grahn, T
Herzan, A
Huyse, M
Jenkins, DG
Joss, DT
Kesteloot, N
Konki, J
Kowalczyk, M
Kroell, T
Kwan, E
Lutter, R
Moschner, K
Napiorkowski, P
Pakarinen, J
Pfeiffer, M
Radeck, D
Reiter, P
Reynders, K
Rigby, SV
Robledo, LM
Rudigier, M
Sambi, S
Seidlitz, M
Siebeck, B
Stora, T
Thoele, P
Van Duppen, P
Vermeulen, MJ
von Schmid, M
Voulot, D
Warr, N
Wimmer, K
Wrzosek-Lipska, K
Wu, CY
Zielinska, M
AF Scheck, M.
Gaffney, L. P.
Butler, P. A.
Hayes, A. B.
Wenander, F.
Albers, M.
Bastin, B.
Bauer, C.
Blazhev, A.
Boenig, S.
Bree, N.
Cederkall, J.
Chupp, T.
Cline, D.
Cocolios, T. E.
Davinson, T.
De Witte, H.
Diriken, J.
Grahn, T.
Herzan, A.
Huyse, M.
Jenkins, D. G.
Joss, D. T.
Kesteloot, N.
Konki, J.
Kowalczyk, M.
Kroell, Th.
Kwan, E.
Lutter, R.
Moschner, K.
Napiorkowski, P.
Pakarinen, J.
Pfeiffer, M.
Radeck, D.
Reiter, P.
Reynders, K.
Rigby, S. V.
Robledo, L. M.
Rudigier, M.
Sambi, S.
Seidlitz, M.
Siebeck, B.
Stora, T.
Thoele, P.
Van Duppen, P.
Vermeulen, M. J.
von Schmid, M.
Voulot, D.
Warr, N.
Wimmer, K.
Wrzosek-Lipska, K.
Wu, C. Y.
Zielinska, M.
BE Schwengner, R
Zuber, K
TI Do nuclei go pear-shaped? Coulomb excitation of Rn-220 and Ra-224 at
REX-ISOLDE (CERN)
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID MOMENTS
AB The IS475 collaboration conducted Coulomb-excitation experiments with post-accelerated radioactive Rn-220 and Ra-224 beams at the REX-ISOLDE facility. The beam particles (E-beam: 2.83 MeV/u) were Coulomb excited using Ni-60, Cd-14, and Sn-120 scattering targets. De-excitation gamma-rays were detected employing the Miniball array and scattered particles were detected in a silicon detector. Exploiting the Coulomb-excitation code GOSIA for each nucleus several matrix elements could be obtained from the measured gamma-ray yields. The extracted < 3 parallel to E3 parallel to 0(+)> matrix element allows for the conclusion that, while Rn-220 represents an octupole vibrational system, Ra-224 has already substantial octupole correlations in its ground state. This finding has i(m)plications for the search of CP-violating Schiff moments in the atomic systems of the adjacent odd-mass nuclei.
C1 [Scheck, M.] Univ West Scotland, Sch Engn, Paisley PA1 2BE, Renfrew, Scotland.
[Scheck, M.] Scottish Univ Phys Alliance, Glasgow G12 8QQ, Lanark, Scotland.
[Scheck, M.; Gaffney, L. P.; Butler, P. A.; Joss, D. T.; Rigby, S. V.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England.
[Gaffney, L. P.; Bree, N.; De Witte, H.; Diriken, J.; Huyse, M.; Kesteloot, N.; Reynders, K.; Sambi, S.; Van Duppen, P.] Katholieke Univ Leuven, Inst voor Kern Stralingsfys, B-3001 Leuven, Belgium.
[Hayes, A. B.; Cline, D.] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA.
[Wenander, F.; Cocolios, T. E.; Pakarinen, J.; Stora, T.; Voulot, D.; Zielinska, M.] CERN, ISOLDE, CH-1211 Geneva, Switzerland.
[Albers, M.; Blazhev, A.; Moschner, K.; Pfeiffer, M.; Radeck, D.; Reiter, P.; Rudigier, M.; Seidlitz, M.; Siebeck, B.; Thoele, P.; Warr, N.] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany.
[Bastin, B.] GANIL, F-14076 Caen, France.
[Bauer, C.; Boenig, S.; Kroell, Th.; von Schmid, M.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany.
[Cederkall, J.] Lund Univ, Dept Nucl Phys, S-22100 Lund, Sweden.
[Chupp, T.] Univ Michigan, Dept Phys, Ann Arbor, MI 48104 USA.
[Davinson, T.] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Grahn, T.; Herzan, A.; Konki, J.; Pakarinen, J.] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland.
[Grahn, T.; Pakarinen, J.] Helsinki Inst Phys, FI-00014 Helsinki, Finland.
[Jenkins, D. G.; Vermeulen, M. J.] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England.
[Kowalczyk, M.; Napiorkowski, P.; Wrzosek-Lipska, K.] Univ Warsaw, Heavy Ion Lab, PL-02093 Warsaw, Poland.
[Kwan, E.; Wu, C. Y.] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94551 USA.
[Lutter, R.] Univ Munich, Maier Leibnitz Lab, D-85748 Garching, Germany.
[Lutter, R.; Wimmer, K.] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany.
[Robledo, L. M.] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain.
[Zielinska, M.] CEA Saclay, DSM IRFU SPhN, F-91191 Gif Sur Yvette, France.
RP Scheck, M (reprint author), Univ West Scotland, Sch Engn, Paisley PA1 2BE, Renfrew, Scotland.
EM marcus.scheck@uws.ac.uk
RI Gaffney, Liam/G-3169-2014
OI Gaffney, Liam/0000-0002-2938-3696
NR 13
TC 0
Z9 0
U1 0
U2 5
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 01038
DI 10.1051/epjconf/20159301038
PG 4
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500038
ER
PT S
AU Tonchev, A
Bhatia, C
Kelley, J
Raut, R
Rusev, G
Tornow, W
Tsoneva, N
AF Tonchev, Anton
Bhatia, Chitra
Kelley, John
Raut, Rajarshi
Rusev, Gencho
Tornow, Werner
Tsoneva, Nadia
BE Schwengner, R
Zuber, K
TI Nuclear Structure Studies with Gamma-Ray Beams
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID PYGMY DIPOLE RESONANCE; N=82 NUCLEI; EXCITATIONS
AB In stable and weakly bound neutron-rich nuclei, a resonance-like concentration of dipole states has been observed for excitation energies below the neutron-separation energy. This clustering of strong dipole states has been named the Pygmy Dipole Resonance (PDR) in contrast to the Giant Dipole Resonance (GDR) that dominates the E1 response. Understanding the PDR is presently of great interest in nuclear structure and nuclear astrophysics. High-sensitivity studies of E1 and M1 transitions in closed-shell nuclei using monoenergetic and 100% linearly-polarized photon beams are presented.
C1 [Tonchev, Anton] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA.
[Rusev, Gencho] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
[Tornow, Werner] Duke Univ, Durham, NC 27708 USA.
[Kelley, John; Tornow, Werner] Triangle Univ Nucl Lab, Durham, NC 27708 USA.
[Kelley, John] N Carolina State Univ, Raleigh, NC 27695 USA.
[Raut, Rajarshi] UGC DAE Consortium Sci Res, Kolkata Ctr, Kolkata, India.
[Bhatia, Chitra] McMaster Univ, Hamilton, ON, Canada.
[Tsoneva, Nadia] Univ Giessen, Inst Theoret Phys, Giessen, Germany.
[Tsoneva, Nadia] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, BU-1784 Sofia, Bulgaria.
RP Tonchev, A (reprint author), Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA.
EM tonchev2@llnl.gov
OI Rusev, Gencho/0000-0001-7563-1518
NR 32
TC 0
Z9 0
U1 0
U2 3
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 01030
DI 10.1051/epjconf/20159301030
PG 5
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500030
ER
PT S
AU Ullmann, J
AF Ullmann, John
BE Schwengner, R
Zuber, K
TI Gamma-ray Output Spectra from Pu-239 Fission
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID DANCE
AB Gamma-ray multiplicities, individual gamma-ray energy spectra, and total gamma energy spectra following neutron-induced fission of Pu-239 were measured using the DANCE detector at Los Alamos. Corrections for detector response were made using a forward-modeling technique based on propagating sets of gamma rays generated from a paramaterized model through a GEANT model of the DANCE array and adjusting the parameters for best fit to the measured spectra. The results for the gamma-ray spectrum and multiplicity are in general agreement with previous results, but the measured total gamma-ray energy is about 10% higher. A dependence of the gamma-ray spectrum on the gamma-ray multplicity was also observed. Global model calculations of the multiplicity and gamma energy distributions are in good agreement with the data, but predict a slightly softer total-energy distribution.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Ullmann, J (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
EM ullmann@lanl.gov
NR 15
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 02016
DI 10.1051/epjconf/20159302016
PG 4
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500071
ER
PT S
AU Werner, V
Cooper, N
Goddard, PM
Humby, P
Ilieva, RS
Rusev, G
Beller, J
Bernards, C
Crider, BP
Isaak, J
Kelley, JH
Kwan, E
Loher, B
Peters, EE
Pietralla, N
Romig, C
Savran, D
Scheck, M
Tonchev, AP
Tornow, W
Yates, SW
Zweidinger, M
AF Werner, V.
Cooper, N.
Goddard, P. M.
Humby, P.
Ilieva, R. S.
Rusev, G.
Beller, J.
Bernards, C.
Crider, B. P.
Isaak, J.
Kelley, J. H.
Kwan, E.
Loeher, B.
Peters, E. E.
Pietralla, N.
Romig, C.
Savran, D.
Scheck, M.
Tonchev, A. P.
Tornow, W.
Yates, S. W.
Zweidinger, M.
BE Schwengner, R
Zuber, K
TI Dipole strength distributions from HIGS Experiments
SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and
Related Topics (CGS)
CY AUG 25-29, 2014
CL Dresden, GERMANY
ID DEFORMED-NUCLEI; GAMMA-S; RESONANCE; SCATTERING; STATES; WIDTH
AB A series of photon scattering experiments has been performed on the double-beta decay partners Ge-76 and Se-76, in order to investigate their dipole response up to the neutron separation threshold. Gamma-ray beams from bremsstrahlung at the S-DALINAC and from Compton-backscattering at HIGS have been used to measure absolute cross sections and parities of dipole excited states, respectively. The HIGS data allows for indirect measurement of averaged branching ratios, which leads to significant corrections in the observed excitation cross sections. Results are compared to statistical calculations, to test photon strength functions and the Axel-Brink hypothesis.
C1 [Werner, V.; Beller, J.; Pietralla, N.; Romig, C.; Zweidinger, M.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany.
[Werner, V.; Cooper, N.; Goddard, P. M.; Humby, P.; Ilieva, R. S.; Bernards, C.] Yale Univ, WSNL, New Haven, CT 06520 USA.
[Goddard, P. M.; Humby, P.; Ilieva, R. S.] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England.
[Rusev, G.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
[Crider, B. P.; Yates, S. W.] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
[Isaak, J.; Loeher, B.; Savran, D.] GSI Darmstadt, EMMI & Res Div, D-64291 Darmstadt, Germany.
[Isaak, J.; Loeher, B.; Savran, D.] FIAS, D-60438 Frankfurt, Germany.
[Kelley, J. H.; Kwan, E.; Tornow, W.] Triangle Univ Nucl Lab, Durham, NC 27708 USA.
[Kwan, E.; Tonchev, A. P.] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA.
[Peters, E. E.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA.
[Scheck, M.] Univ West Scotland, Sch Engn, Paisley PA1 2BE, Renfrew, Scotland.
[Scheck, M.] Scottish Univ Phys Alliance, Glasgow G12 8QQ, Lanark, Scotland.
RP Werner, V (reprint author), Tech Univ Darmstadt, Inst Kernphys, Schlossgartenstr 9, D-64289 Darmstadt, Germany.
EM vw@ikp.tu-darmstadt.de
RI Bernards, Christian/C-4879-2013;
OI Bernards, Christian/0000-0001-5346-1415; Rusev,
Gencho/0000-0001-7563-1518
NR 28
TC 0
Z9 0
U1 0
U2 4
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
BN 978-2-7598-1794-8
J9 EPJ WEB CONF
PY 2015
VL 93
AR 01031
DI 10.1051/epjconf/20159301031
PG 5
WC Physics, Multidisciplinary; Spectroscopy
SC Physics; Spectroscopy
GA BD1RU
UT WOS:000358307500031
ER
PT J
AU McCloskey, BD
Burke, CM
Nichols, JE
Renfrew, SE
AF McCloskey, Bryan D.
Burke, Colin M.
Nichols, Jessica E.
Renfrew, Sara E.
TI Mechanistic insights for the development of Li-O-2 battery materials:
addressing Li2O2 conductivity limitations and electrolyte and cathode
instabilities
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID LI-AIR BATTERIES; LITHIUM-OXYGEN BATTERIES; ETHER-BASED ELECTROLYTES;
DIMETHYL-SULFOXIDE; ION BATTERIES; SOLID-STATE; CARBONATE ELECTROLYTES;
KINETIC OVERPOTENTIALS; OVERCHARGE PROTECTION; DISCHARGE CAPACITY
AB The Li-air battery has received significant attention over the past decade given its high theoretical specific energy compared to competing energy storage technologies. Yet, numerous scientific challenges remain unsolved in the pursuit of attaining a battery with modest Coulombic efficiency and high capacity. In this Feature Article, we provide our current perspective on challenges facing the development of nonaqueous Li-O-2 battery cathodes. We initially present a review on our understanding of electrochemical processes occurring at the nonaqueous Li-O-2 cathode. Electrolyte and cathode instabilities and Li2O2 conductivity limitations are then discussed, and suggestions for future materials research development to alleviate these issues are provided.
C1 [McCloskey, Bryan D.; Burke, Colin M.; Nichols, Jessica E.; Renfrew, Sara E.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.
[McCloskey, Bryan D.; Burke, Colin M.; Nichols, Jessica E.; Renfrew, Sara E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP McCloskey, BD (reprint author), Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.
EM bmcclosk@berkeley.edu
RI McCloskey, Bryan/A-6556-2015;
OI McCloskey, Bryan/0000-0001-6599-2336; Nichols,
Jessica/0000-0002-8597-1898
FU Laboratory Directed Research and Development Program of Lawrence
Berkeley National Laboratory under U.S. Department of Energy
[DE-AC02-05CH11231]; U.S. Department of Energy, Energy Efficiency and
Renewable Energy Vehicle Technologies Office [DE-0006869]
FX The authors wish to thank Alan Luntz, Venkat Viswanathan, Dan Addison,
and Wei Tong for helpful discussions. BDM, SER, and JEN gratefully
acknowledge support through the Laboratory Directed Research and
Development Program of Lawrence Berkeley National Laboratory under U.S.
Department of Energy Contract No. DE-AC02-05CH11231, and support for CMB
through the U.S. Department of Energy, Energy Efficiency and Renewable
Energy Vehicle Technologies Office under award DE-0006869.
NR 139
TC 29
Z9 29
U1 11
U2 113
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 64
BP 12701
EP 12715
DI 10.1039/c5cc04620c
PG 15
WC Chemistry, Multidisciplinary
SC Chemistry
GA CN7IY
UT WOS:000358609100001
PM 26179598
ER
PT J
AU He, X
Qi, YL
Wang, Z
Wang, JX
Shuai, SJ
Tao, L
AF He, Xin
Qi, Yunliang
Wang, Zhi
Wang, Jianxin
Shuai, Shijin
Tao, Ling
TI VISUALIZATION OF THE MODE SHAPES OF PRESSURE OSCILLATION IN A
CYLINDRICAL CAVITY
SO COMBUSTION SCIENCE AND TECHNOLOGY
LA English
DT Article
DE Cylindrical cavity; Mode shape; Resonant frequency
ID ISOTROPIC CIRCULAR CYLINDERS; THERMOACOUSTIC OSCILLATIONS;
COMBUSTION-CHAMBERS; ENGINE COMBUSTION; WAVE PROPAGATION; PRE-IGNITION;
SUPER-KNOCK; RESONANCES; CHEMILUMINESCENCE
AB This article describes a novel experimental method to visualize the mode shapes of pressure oscillation in a cylindrical cavity. Acoustic resonance in a cavity is a grand old problem that has been under investigation (using both analytical and numerical methods) for more than a century. In this article, a novel method based on high speed imaging of combustion chemiluminescence was presented to visualize the mode shapes of pressure oscillation in a cylindrical cavity. By generating high-temperature combustion gases and strong pressure waves simultaneously in a cylindrical cavity, the pressure oscillation can be inferred due to the chemiluminescence emissions of the combustion products. The mode shapes can then be visualized by reconstructing the images based on the amplitudes of the luminosity spectrum at the corresponding resonant frequencies. Up to 11 resonant mode shapes were clearly visualized, each matching very well with the analytical solutions.
C1 [He, Xin; Shuai, Shijin] Tsinghua Univ, Ctr Combust Energy, Beijing 100084, Peoples R China.
[He, Xin; Qi, Yunliang; Wang, Zhi; Wang, Jianxin; Shuai, Shijin] Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China.
[Tao, Ling] Natl Renewable Energy Lab, Golden, CO USA.
RP Wang, Z (reprint author), Tsinghua Univ, Automobile Res Inst, State Key Lab Automot Safety & Energy, Room 112, Beijing 100084, Peoples R China.
EM wangzhi@tsinghua.edu.cn
FU National Natural Science Foundation of China [51476086]
FX This study is supported by the National Natural Science Foundation of
China (Grant No. 51476086).
NR 30
TC 0
Z9 0
U1 2
U2 6
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 0010-2202
EI 1563-521X
J9 COMBUST SCI TECHNOL
JI Combust. Sci. Technol.
PY 2015
VL 187
IS 10
BP 1610
EP 1619
DI 10.1080/00102202.2015.1038385
PG 10
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
Engineering, Chemical
SC Thermodynamics; Energy & Fuels; Engineering
GA CO0UL
UT WOS:000358868900007
ER
PT S
AU Almaraz-Calderon, S
Carnelli, PFF
Rehm, KE
Albers, M
Alcorta, M
Bertone, PF
Digiovine, B
Esbensen, H
Niello, JOF
Henderson, D
Jiang, CL
Lai, J
Marley, ST
Nusair, O
Palchan-Hazan, T
Pardo, RC
Paul, M
Ugalde, C
AF Almaraz-Calderon, S.
Carnelli, P. F. F.
Rehm, K. E.
Albers, M.
Alcorta, M.
Bertone, P. F.
Digiovine, B.
Esbensen, H.
Fernandez Niello, J. O.
Henderson, D.
Jiang, C. L.
Lai, J.
Marley, S. T.
Nusair, O.
Palchan-Hazan, T.
Pardo, R. C.
Paul, M.
Ugalde, C.
BE Giardina, G
Eidelman, S
Venanzoni, G
Battaglieri, M
Mandaglio, G
TI C plus C Fusion Cross Sections Measurements for Nuclear Astrophysics
SO DARK MATTER, HADRON PHYSICS AND FUSION PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT International Conference on Dark Matter, Hadron Physics and Fusion
Physics
CY SEP 24-26, 2014
CL Univ Messina, Messina, ITALY
SP Fondazione Bonino Pulejo
HO Univ Messina
ID STARS
AB Total fusion cross section of carbon isotopes were obtained using the newly developed MUSIC detector. MUSIC is a highly efficient, active target-detector system designed to measure fusion excitation functions with radioactive beams. The present measurements are relevant for understanding x-ray superbursts. The results of the first MUSIC campaign as well as the astrophysical implications are presented in this work.
C1 [Almaraz-Calderon, S.; Carnelli, P. F. F.; Rehm, K. E.; Albers, M.; Alcorta, M.; Bertone, P. F.; Digiovine, B.; Esbensen, H.; Henderson, D.; Jiang, C. L.; Marley, S. T.; Nusair, O.; Palchan-Hazan, T.; Pardo, R. C.; Ugalde, C.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Carnelli, P. F. F.; Fernandez Niello, J. O.] Comis Nacl Energia Atom, Lab Tandar, San Martin, Buenos Aires, Argentina.
[Lai, J.] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA.
[Paul, M.] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel.
RP Almaraz-Calderon, S (reprint author), Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
EM salmaraz@physics.fsu.edu
NR 14
TC 0
Z9 0
U1 0
U2 3
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 96
AR 01001
DI 10.1051/epjconf/20159601001
PG 5
WC Astronomy & Astrophysics; Physics, Multidisciplinary; Physics, Nuclear
SC Astronomy & Astrophysics; Physics
GA BD1WU
UT WOS:000358445500001
ER
PT S
AU Filippi, A
AF Filippi, A.
CA CLAS Collaboration
BE Giardina, G
Eidelman, S
Venanzoni, G
Battaglieri, M
Mandaglio, G
TI The Meson Spectroscopy Program at the Jefferson Laboratory
SO DARK MATTER, HADRON PHYSICS AND FUSION PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT International Conference on Dark Matter, Hadron Physics and Fusion
Physics
CY SEP 24-26, 2014
CL Univ Messina, Messina, ITALY
SP Fondazione Bonino Pulejo
HO Univ Messina
ID F(0)(1500) DECAY; HYDROGEN TARGETS; HIGH-STATISTICS; 18 GEV/C;
ANNIHILATION; REST; PHOTOPRODUCTION; CEBAF; STATE; ETA
AB The experimental techniques that will be applied by the next generation meson spectroscopy experiments at JLab are described. For the first time, these experiments will be able to exploit the features of a photon beam of unprecedented intensity and momentum resolution, that will allow to perform precision studies of meson states with masses below 3 GeV/c(2). Photon induced reactions will enhance the production of spin-1 mesons, that are of particular interest according to the most recent Lattice QCD calculations of the lightest exotic hybrid meson.
C1 [Filippi, A.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[CLAS Collaboration] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
RP Filippi, A (reprint author), Ist Nazl Fis Nucl, Sez Torino, Via P Giuria 1, I-10125 Turin, Italy.
EM filippi@to.infn.it
NR 37
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 96
AR 01013
DI 10.1051/epjconf/20159601013
PG 8
WC Astronomy & Astrophysics; Physics, Multidisciplinary; Physics, Nuclear
SC Astronomy & Astrophysics; Physics
GA BD1WU
UT WOS:000358445500013
ER
PT S
AU Tiberio, A
Adriani, O
Berti, E
Bonechi, L
Bongi, M
Castellini, G
D'Alessandro, R
Del Prete, M
Haguenauer, M
Itow, Y
Kasahara, K
Kawade, K
Makino, Y
Masuda, K
Matsubayashi, E
Menjo, H
Mitsuka, G
Muraki, Y
Papini, P
Perrot, AL
Pfeiffer, D
Ricciarini, S
Sako, T
Sakurai, N
Shimizu, Y
Sugiura, Y
Suzuki, T
Tamura, T
Torii, S
Tricomi, A
Turner, WC
Zhou, Q
AF Tiberio, A.
Adriani, O.
Berti, E.
Bonechi, L.
Bongi, M.
Castellini, G.
D'Alessandro, R.
Del Prete, M.
Haguenauer, M.
Itow, Y.
Kasahara, K.
Kawade, K.
Makino, Y.
Masuda, K.
Matsubayashi, E.
Menjo, H.
Mitsuka, G.
Muraki, Y.
Papini, P.
Perrot, A-L
Pfeiffer, D.
Ricciarini, S.
Sako, T.
Sakurai, N.
Shimizu, Y.
Sugiura, Y.
Suzuki, T.
Tamura, T.
Torii, S.
Tricomi, A.
Turner, W. C.
Zhou, Q.
BE Giardina, G
Eidelman, S
Venanzoni, G
Battaglieri, M
Mandaglio, G
TI Recent results from the LHCf experiment
SO DARK MATTER, HADRON PHYSICS AND FUSION PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT International Conference on Dark Matter, Hadron Physics and Fusion
Physics
CY SEP 24-26, 2014
CL Univ Messina, Messina, ITALY
SP Fondazione Bonino Pulejo
HO Univ Messina
ID PROTON-PROTON COLLISIONS; PHOTON ENERGY-SPECTRA
AB The LHC-forward (LHCf) experiment, situated at the LHC accelerator, has measured neutral particles production in a very forward region (pseudo-rapidity > 8.4) in proton-proton and proton-lead collisions. The main purpose of the LHCf experiment is to test hadronic interaction models used in cosmic rays experiments to simulate cosmic rays induced air-showers in Earth's atmosphere.
The experiment is composed of two independent detectors located at 140m from the ATLAS interaction point (IP1) on opposite sides; each detector is composed of two sampling calorimeters.
Latest physics results from p-p and p-Pb collisions (at root s = 7 TeV and 5.02 TeV respectively) will be discussed in this paper; in particular, the inclusive energy spectra of neutrons in p-p collisions and the transverse momentum spectra of neutral pions for different pseudo-rapidity ranges in p-Pb collisions will be shown.
C1 [Tiberio, A.; Adriani, O.; Berti, E.; Bongi, M.; D'Alessandro, R.; Del Prete, M.; Mitsuka, G.] Univ Florence, I-50121 Florence, Italy.
[Tiberio, A.; Adriani, O.; Berti, E.; Bonechi, L.; Bongi, M.; Castellini, G.; D'Alessandro, R.; Del Prete, M.; Papini, P.; Ricciarini, S.] INFN Sect Florence, Florence, Italy.
[Castellini, G.; Ricciarini, S.] IFAC CNR, Florence, Italy.
[Haguenauer, M.] Ecole Polytech, Palaiseau, France.
[Itow, Y.; Kawade, K.; Makino, Y.; Masuda, K.; Matsubayashi, E.; Mitsuka, G.; Muraki, Y.; Sako, T.; Sugiura, Y.; Zhou, Q.] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan.
[Itow, Y.; Sako, T.; Sakurai, N.] Nagoya Univ, Kobayashi Maskawa Inst Origin Particles & Univers, Nagoya, Aichi 4648601, Japan.
[Kasahara, K.; Suzuki, T.; Torii, S.] Waseda Univ, RISE, Tokyo, Japan.
[Menjo, H.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648601, Japan.
[Perrot, A-L; Pfeiffer, D.] CERN, CH-1211 Geneva 23, Switzerland.
[Shimizu, Y.] JAXA, Tokyo, Japan.
[Tamura, T.] Kanagawa Univ, Kanagawa, Japan.
[Tricomi, A.] Univ Catania, I-95124 Catania, Italy.
[Tricomi, A.] INFN Sect Catania, Padua, Italy.
[Turner, W. C.] LBNL, Berkeley, CA USA.
RP Tiberio, A (reprint author), Univ Florence, I-50121 Florence, Italy.
EM alessio.tiberio@fi.infn.it
RI Bongi, Massimo/L-9417-2015
OI Bongi, Massimo/0000-0002-6050-1937
NR 13
TC 0
Z9 0
U1 1
U2 3
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 96
AR 01031
DI 10.1051/epjconf/20159601031
PG 5
WC Astronomy & Astrophysics; Physics, Multidisciplinary; Physics, Nuclear
SC Astronomy & Astrophysics; Physics
GA BD1WU
UT WOS:000358445500031
ER
PT J
AU Mai, CK
Russ, B
Fronk, SL
Hu, N
Chan-Park, MB
Urban, JJ
Segalman, RA
Chabinyc, ML
Bazan, GC
AF Mai, Cheng-Kang
Russ, Boris
Fronk, Stephanie L.
Hu, Nan
Chan-Park, Mary B.
Urban, Jeffrey J.
Segalman, Rachel A.
Chabinyc, Michael L.
Bazan, Guillermo C.
TI Varying the ionic functionalities of conjugated polyelectrolytes leads
to both p- and n-type carbon nanotube composites for flexible
thermoelectrics
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID FIELD-EFFECT TRANSISTORS; SEMICONDUCTING POLYMERS; ORGANIC
SEMICONDUCTORS; ELECTRONIC-PROPERTIES; MOLECULAR DESIGN; POWER FACTORS;
SOLAR-CELLS; CONDUCTIVITY; PERFORMANCE; NANOCOMPOSITES
AB Single-walled carbon nanotubes can be selectively doped by conjugated polyelectrolytes (CPEs) to form either p- or n-type composites. The selectivity of charge-transfer doping is found to be dictated by the polarities of CPE pendant ionic functionalities. This finding leads to a fundamentally new approach to both p- and n-type solutionprocessable composites for high performance, flexible thermoelectric devices.
C1 [Mai, Cheng-Kang; Fronk, Stephanie L.; Hu, Nan; Bazan, Guillermo C.] Univ Calif Santa Barbara, Dept Chem & Biochem, Ctr Polymers & Organ Solids, Santa Barbara, CA 93106 USA.
[Russ, Boris] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.
[Chan-Park, Mary B.] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore.
[Russ, Boris; Urban, Jeffrey J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Mol Foundry, Berkeley, CA 94720 USA.
[Segalman, Rachel A.; Chabinyc, Michael L.; Bazan, Guillermo C.] Univ Calif Santa Barbara, Mat Res Lab, Dept Mat, Santa Barbara, CA 93106 USA.
RP Mai, CK (reprint author), Univ Calif Santa Barbara, Dept Chem & Biochem, Ctr Polymers & Organ Solids, Santa Barbara, CA 93106 USA.
EM bazan@chem.ucsb.edu
RI Mai, Cheng-Kang/A-8018-2012; Chan-Park, Mary/G-6196-2010; Foundry,
Molecular/G-9968-2014; Bazan, Guillermo/B-7625-2014
OI Mai, Cheng-Kang/0000-0002-9825-7466; Chan-Park,
Mary/0000-0003-3761-7517;
FU AFOSR MURI [FA9550-12-1-0002]; MRSEC Program of the NSF [DMR 1121053];
NSF; Office of Science, Office of Basic Energy Sciences, U.S. Department
of Energy [DE-AC02-05CH11231]
FX We acknowledge financial support from the AFOSR MURI FA9550-12-1-0002.
The MRL Shared Experimental Facilities (SEM, UPS, and GPC) are supported
by the MRSEC Program of the NSF under Award No. DMR 1121053; a member of
the NSF-funded Materials Research Facilities Network (www.mrfn.org).
Portions of this research were carried out at the Molecular Foundry, a
Lawrence Berkeley National Laboratory user facility supported by the
Office of Science, Office of Basic Energy Sciences, U.S. Department of
Energy, under Contract DE-AC02-05CH11231. C.-K. Mai thanks Prof.
Thuc-Quyen Nguyen and Dr Xiaofeng Liu for helpful discussions, Dr Ruth
Schlitz and Anne Glaudell for help on thermoelectric measurements.
NR 65
TC 25
Z9 25
U1 12
U2 81
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
EI 1754-5706
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2015
VL 8
IS 8
BP 2341
EP 2346
DI 10.1039/c5ee00938c
PG 6
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA CN8XZ
UT WOS:000358730600008
ER
PT J
AU Lichterman, MF
Hu, S
Richter, MH
Crumlin, EJ
Axnanda, S
Favaro, M
Drisdell, W
Hussain, Z
Mayer, T
Brunschwig, BS
Lewis, NS
Liu, Z
Lewerenz, HJ
AF Lichterman, Michael F.
Hu, Shu
Richter, Matthias H.
Crumlin, Ethan J.
Axnanda, Stephanus
Favaro, Marco
Drisdell, Walter
Hussain, Zahid
Mayer, Thomas
Brunschwig, Bruce S.
Lewis, Nathan S.
Liu, Zhi
Lewerenz, Hans-Joachim
TI Direct observation of the energetics at a semiconductor/liquid junction
by operando X-ray photoelectron spectroscopy
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID SOLID-LIQUID INTERFACE; SOLAR-CELLS; BAND-GAP; SEMICONDUCTOR/ELECTROLYTE
INTERFACES; ENERGY-CONVERSION; SURFACE-STATES; WATER; XPS; OXIDATION;
DEVICES
AB Photoelectrochemical (PEC) cells based on semiconductor/liquid interfaces provide a method of converting solar energy to electricity or fuels. Currently, the understanding of semiconductor/liquid interfaces is inferred from experiments and models. Operando ambient-pressure X-ray photoelectron spectroscopy (AP-XPS) has been used herein to directly characterize the semiconductor/liquid junction at room temperature under real-time electrochemical control. X-ray synchrotron radiation in conjunction with AP-XPS has enabled simultaneous monitoring of the solid surface, the solid/electrolyte interface, and the bulk electrolyte of a PEC cell as a function of the applied potential, U. The observed shifts in binding energy with respect to the applied potential have directly revealed ohmic and rectifying junction behavior on metallized and semiconducting samples, respectively. Additionally, the non-linear response of the core level binding energies to changes in the applied electrode potential has revealed the influence of defect-derived electronic states on the Galvani potential across the complete cell.
C1 [Lichterman, Michael F.; Hu, Shu; Lewis, Nathan S.] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA.
[Lichterman, Michael F.; Hu, Shu; Richter, Matthias H.; Favaro, Marco; Drisdell, Walter; Brunschwig, Bruce S.; Lewis, Nathan S.; Lewerenz, Hans-Joachim] CALTECH, Joint Ctr Artificial Photosynthesis, Pasadena, CA 91125 USA.
[Crumlin, Ethan J.; Axnanda, Stephanus; Favaro, Marco; Drisdell, Walter; Hussain, Zahid; Liu, Zhi] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Mayer, Thomas] Tech Univ Darmstadt, Dept Mat Sci, Div Surface Sci, D-64287 Darmstadt, Germany.
[Brunschwig, Bruce S.] CALTECH, Beckman Inst, Pasadena, CA 91125 USA.
[Lewis, Nathan S.] CALTECH, Kavli Nanosci Inst, Pasadena, CA 91125 USA.
[Liu, Zhi] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China.
[Liu, Zhi] ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China.
RP Lichterman, MF (reprint author), CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA.
EM bsb@caltech.edu; nslewis@caltech.edu; zliu2@lbl.gov;
lewerenz@caltech.edu
RI Liu, Zhi/B-3642-2009; Hu, Shu/B-8120-2013;
OI Liu, Zhi/0000-0002-8973-6561; Favaro, Marco/0000-0002-3502-8332
FU Office of Science of the U.S. Department of Energy (DOE) [DE-SC0004993];
DOE Energy Innovation Hub; Office of Science, Office of Basic Energy
Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
FX This work was supported through the Office of Science of the U.S.
Department of Energy (DOE) under award no. DE-SC0004993 to the Joint
Center for Artificial Photosynthesis, a DOE Energy Innovation Hub. 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. We acknowledge Dr. Philip Ross for his
contributions to the conceptual development of the AP-XPS endstation and
experimental design, and Junko Yano for fruitful discussions. We
acknowledge Fadl Saadi, Beomgyun Jeong, and Sana Rani for assistance
during data collection at the beamline.
NR 47
TC 19
Z9 19
U1 14
U2 65
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
EI 1754-5706
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2015
VL 8
IS 8
BP 2409
EP 2416
DI 10.1039/c5ee01014d
PG 8
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA CN8XZ
UT WOS:000358730600019
ER
PT B
AU Roberts, CD
AF Roberts, Craig D.
BE EbrahimiFard, K
Fauvet, F
TI Strong QCD and Dyson-Schwinger equations
SO FAA DI BRUNO HOPF ALGEBRAS, DYSON-SCHWINGER EQUATIONS, AND LIE-BUTCHER
SERIES
SE IRMA Lectures in Mathematics and Theoretical Physics
LA English
DT Proceedings Paper
CT Conference on Dyson-Schwinger Equations and Faa di Bruno Hopf Algebras
in Physics and Combinatorics (DSFdB2011)
CY JUN 27-JUL 01, 2011
CL Strasbourg Univ, IRMA, Strasbourg, FRANCE
SP French Ctr Natl Rech Sci, Courant Res Ctr, Lab Math Informatique & Applicat, Inst Rech Math Avancee
HO Strasbourg Univ, IRMA
ID CHIRAL-SYMMETRY-BREAKING; ELECTROMAGNETIC FORM-FACTORS; DEEP
INELASTIC-SCATTERING; QUANTUM CHROMODYNAMICS; HADRON PHYSICS; DECAY
CONSTANT; BOUND-STATES; FIELD-THEORY; U(1) PROBLEM; QUARK-MODEL
AB The real-world properties of quantum chromodynamics (QCD) - the strongly-interacting piece of the Standard Model - are dominated by two emergent phenomena: confinement; namely, the theory's elementary degrees-of-freedom - quarks and gluons - have never been detected in isolation; and dynamical chiral symmetry breaking (DCSB), which is a remarkably effective mass generating mechanism, responsible for the mass of more than 98% of visible matter in the Universe. These phenomena are not apparent in the formulae that define QCD, yet they play a principal role in determining Nature's observable characteristics. Much remains to be learnt before confinement can properly be understood. On the other hand, the last decade has seen important progress in the use of relativistic quantum field theory, so that we can now explain the origin of DCSB and are beginning to demonstrate its far-reaching consequences. Dyson-Schwinger equations have played a critical role in these advances. These lecture notes provide an introduction to Dyson-Schwinger equations (DSEs), QCD and hadron physics, and illustrate the use of DSEs to predict observable phenomena.
C1 [Roberts, Craig D.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Roberts, Craig D.] IIT, Dept Phys, Chicago, IL 60616 USA.
RP Roberts, CD (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
EM cdroberts@anl.gov
NR 271
TC 2
Z9 2
U1 1
U2 1
PU EUROPEAN MATHEMATICAL SOC
PI ZURICH
PA ETH-ZENTRUM FLI C4, ZURICH, CH-8092, SWITZERLAND
BN 978-3-03719-143-9
J9 IRMA LECT MATH THEOR
PY 2015
VL 21
BP 355
EP 458
PG 104
WC Mathematics
SC Mathematics
GA BD2JS
UT WOS:000358806200007
ER
PT S
AU Monnai, A
AF Monnai, Akihiko
GP IOP
TI Effects of quark chemical equilibration on thermal photon elliptic flow
SO HOT QUARKS 2014: WORKSHOP FOR YOUNG SCIENTISTS ON THE PHYSICS OF
ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 6th Workshop on Young Scientists on the Physics of Ultrarelativistic
Nucleus-Nucleus Collisions (Hot Quarks)
CY SEP 21-28, 2014
CL Las Negras, SPAIN
SP Brookhaven Natl Lab, CPAN, Czech Sci Fdn, European Lab Particle Phys, European Res Council, ExtreMe Matter Inst, Helmholtz Assoc & GSI, Helmholtz Int Ctr FAIR, Natl Sci Fdn, ASCR, Nucl Phys Inst, Patronato Alhambra Generalife, Univ Granada
ID GLUON DISTRIBUTION-FUNCTIONS; LARGE NUCLEI
AB Large hadronic elliptic flow v2 is considered as an evidence for the existence of a strongly-coupled QGP fluid in high-energy heavy-ion collisions. On the other hand, direct photon v2 has recently been found to be much larger than that of hydrodynamic estimations, which is recognized as "photon v2 puzzle". In this study, I discuss the implication of late production of quarks in an initially gluon-rich medium because photons are coupled to quarks. Numerical analyses imply that thermal photon v2 can be visibly enhanced. This indicates that interplay of equilibration processes and collective expansion would be important.
C1 Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
RP Monnai, A (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
EM amonnai@riken.jp
NR 17
TC 1
Z9 1
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 612
AR 012026
DI 10.1088/1742-6596/612/1/012026
PG 4
WC Physics, Nuclear
SC Physics
GA BD1PN
UT WOS:000358244000026
ER
PT S
AU Perepelitsa, DV
AF Perepelitsa, Dennis V.
CA ATLAS Collaboration
GP IOP
TI High-p(T) probes of p plus Pb collisions with ATLAS
SO HOT QUARKS 2014: WORKSHOP FOR YOUNG SCIENTISTS ON THE PHYSICS OF
ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 6th Workshop on Young Scientists on the Physics of Ultrarelativistic
Nucleus-Nucleus Collisions (Hot Quarks)
CY SEP 21-28, 2014
CL Las Negras, SPAIN
SP Brookhaven Natl Lab, CPAN, Czech Sci Fdn, European Lab Particle Phys, European Res Council, ExtreMe Matter Inst, Helmholtz Assoc & GSI, Helmholtz Int Ctr FAIR, Natl Sci Fdn, ASCR, Nucl Phys Inst, Patronato Alhambra Generalife, Univ Granada
AB Measurements of high PT processes in ultrarelativistic proton nucleus collisions are sensitive to changes in the partonic densities arising from the presence of the nuclear environment. Additionally, such measurements benchmark the so called "cold nuclear matter" effects and provide the reference for understanding the large suppression of high-PT processes observed in nucleus nucleus collisions. Furthermore, measurements of the centrality dependence of jet production at forward (proton-going) rapidities may shed light on the behavior of the proton wavefunction at large Bjorken-x. The latest ATLAS results for inclusive jets and charged particles in 28.9 nb(-1) of 5.02 TeV proton lead collisions at the LHC are presented. The centrality in these collisions is characterized through the sum of the total transverse energy in the lead-going forward calorimeter. The nuclear modification factors R-pPb and R-CP are presented as a function of transverse momentum, rapidity and centrality. The jet R-CP in a large rapidity region is found to be modified in a way that depends only on the total jet energy.
C1 [Perepelitsa, Dennis V.; ATLAS Collaboration] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Perepelitsa, DV (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
EM dvp@bnl.gov
NR 10
TC 0
Z9 0
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 612
AR 012012
DI 10.1088/1742-6596/612/1/012012
PG 4
WC Physics, Nuclear
SC Physics
GA BD1PN
UT WOS:000358244000012
ER
PT S
AU Schenke, B
AF Schenke, Bjoern
GP IOP
TI Initial state fluctuations and final state collectivity in high energy
nuclear collisions: Status and Outlook
SO HOT QUARKS 2014: WORKSHOP FOR YOUNG SCIENTISTS ON THE PHYSICS OF
ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 6th Workshop on Young Scientists on the Physics of Ultrarelativistic
Nucleus-Nucleus Collisions (Hot Quarks)
CY SEP 21-28, 2014
CL Las Negras, SPAIN
SP Brookhaven Natl Lab, CPAN, Czech Sci Fdn, European Lab Particle Phys, European Res Council, ExtreMe Matter Inst, Helmholtz Assoc & GSI, Helmholtz Int Ctr FAIR, Natl Sci Fdn, ASCR, Nucl Phys Inst, Patronato Alhambra Generalife, Univ Granada
ID HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; ROOT-S(NN)=5.02 TEV; PB
COLLISIONS; FLOW; THERMODYNAMICS; DEPENDENCE; DENSITY; PPB
AB We review recent developments in the theoretical description of the initial state and collective dynamics in heavy ion and light-heavy ion collisions. After describing the current state of the art in event by event simulations of high energy nuclear collisions we will focus on open issues. These include early time non-equilibrium dynamics, small collision systems (p+p, p+A), hydrodynamic fluctuations, and lower beam energies (root s < 200 GeV).
C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Schenke, B (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
EM bschenke@bnl.gov
NR 93
TC 0
Z9 0
U1 1
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 612
AR 012059
DI 10.1088/1742-6596/612/1/012059
PG 6
WC Physics, Nuclear
SC Physics
GA BD1PN
UT WOS:000358244000059
ER
PT S
AU Yu, HW
AF Yu, Haiwang
CA PHENIX Collaboration
GP IOP
TI Study of Charmonia Production vs. Charged Track Multiplicity in p plus p
Collisions at PHENIX
SO HOT QUARKS 2014: WORKSHOP FOR YOUNG SCIENTISTS ON THE PHYSICS OF
ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 6th Workshop on Young Scientists on the Physics of Ultrarelativistic
Nucleus-Nucleus Collisions (Hot Quarks)
CY SEP 21-28, 2014
CL Las Negras, SPAIN
SP Brookhaven Natl Lab, CPAN, Czech Sci Fdn, European Lab Particle Phys, European Res Council, ExtreMe Matter Inst, Helmholtz Assoc & GSI, Helmholtz Int Ctr FAIR, Natl Sci Fdn, ASCR, Nucl Phys Inst, Patronato Alhambra Generalife, Univ Granada
ID DETECTOR; J/PSI; TEV
AB Charmonia production is a unique probe to explore the dynamics of particle production in hot and cold nuclear matter. Traditionally, charmonia suppression has been studied in heavy-ion collisions to quantify various nuclear effects. Since the "long-range, nearside angular correlation in p p collisions" discovered at the LHC, collective QCD phenomena in smaller systems have been a hot research topic. A recent PHENIX d + Au results also show intriguing hints that the comover effect may play an important role along with other competing effects. At PHENIX the newly upgraded silicon detector FVTX provides improved dimuon mass resolution at forward rapidity as well as the capability of measuring charged track multiplicity directly. In these proceedings, we present the latest result on ti,(2S) production in dl-Au collisions at midrapidity, the first 0(2S) measurement at forward rapidity at RHIC and the expected precision for the charmonia production vs. charged track multiplicity in p p collisions at PHENIX.
C1 [Yu, Haiwang] Peking Univ, Sch Phys, Beijing 100871, Peoples R China.
New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA.
Los Alamos Natl Lab, P Grp 25, Los Alamos, NM 87544 USA.
RP Yu, HW (reprint author), Peking Univ, Sch Phys, Beijing 100871, Peoples R China.
EM yuhw.pku@gmail.com
NR 11
TC 0
Z9 0
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 612
AR 012029
DI 10.1088/1742-6596/612/1/012029
PG 4
WC Physics, Nuclear
SC Physics
GA BD1PN
UT WOS:000358244000029
ER
PT S
AU Zhu, Y
Wang, XN
AF Zhu, Yan
Wang, Xin-Nian
GP IOP
TI Constraining of jet medium interaction in high-energy heavy-ion
collisions
SO HOT QUARKS 2014: WORKSHOP FOR YOUNG SCIENTISTS ON THE PHYSICS OF
ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 6th Workshop on Young Scientists on the Physics of Ultrarelativistic
Nucleus-Nucleus Collisions (Hot Quarks)
CY SEP 21-28, 2014
CL Las Negras, SPAIN
SP Brookhaven Natl Lab, CPAN, Czech Sci Fdn, European Lab Particle Phys, European Res Council, ExtreMe Matter Inst, Helmholtz Assoc & GSI, Helmholtz Int Ctr FAIR, Natl Sci Fdn, ASCR, Nucl Phys Inst, Patronato Alhambra Generalife, Univ Granada
AB In this talk, we discuss jet medium interaction, in particular, 7-tagged jet energy loss and gamma-jet correlation in Pb+Pb collisions at root s = 2.76 TeV within a linearized Boltzmann transport (LBT) model. It is shown that both recoiled and radiated partons have considerable contribution to the energy of a reconstructed jet. LBT results agree well with experimental data and also indicate a sizable azimuthal angle broadening of gamma-jet correlation which should be observable with reduced experimental uncertainties. A gamma-tagged jet fragmentation function is also shown as a better measure of jet quenching.
C1 [Zhu, Yan] Univ Santiago de Compostela, Dept Fis Particulas, E-15706 Santiago De Compostela, Galicia, Spain.
[Zhu, Yan] Univ Santiago de Compostela, IGFAE, E-15706 Santiago De Compostela, Galicia, Spain.
[Wang, Xin-Nian] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.
[Wang, Xin-Nian] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
[Wang, Xin-Nian] Lawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94740 USA.
RP Zhu, Y (reprint author), Univ Santiago de Compostela, Dept Fis Particulas, E-15706 Santiago De Compostela, Galicia, Spain.
EM yan.zhu@usc.es
NR 10
TC 0
Z9 0
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 612
AR 012007
DI 10.1088/1742-6596/612/1/012007
PG 4
WC Physics, Nuclear
SC Physics
GA BD1PN
UT WOS:000358244000007
ER
PT J
AU Kishcha, P
da Silva, A
Starobinets, B
Long, C
Kalashnikova, O
Alpert, P
AF Kishcha, Pavel
da Silva, Arlindo
Starobinets, Boris
Long, Charles
Kalashnikova, Olga
Alpert, Pinhas
TI Saharan dust as a causal factor of hemispheric asymmetry in aerosols and
cloud cover over the tropical Atlantic Ocean
SO INTERNATIONAL JOURNAL OF REMOTE SENSING
LA English
DT Article
ID OPTICAL-PROPERTIES; MINERAL DUST; MODIS; PRECIPITATION; SATELLITE;
TRENDS; THICKNESS; TRANSPORT; POLLUTION; IMPACT
AB Previous studies showed that, over the global ocean, there is no noticeable hemispheric asymmetry in cloud fraction (CF). This contributes to the balance in solar radiation reaching the sea surface in the northern and southern hemispheres. In the current study, we focus on the tropical Atlantic (30 degrees N-30 degrees S), which is characterized by significant amounts of Saharan dust dominating other aerosol species over the North Atlantic. Our main point is that, over the tropical Atlantic, Saharan dust not only is responsible for the pronounced hemispheric aerosol asymmetry, but also contributes to significant cloud cover along the Saharan Air Layer (SAL). Over the tropical Atlantic in July, along the SAL, Moderate Resolution Imaging Spectroradiometer CF data showed significant cloud cover (up to 0.8-0.9). This significant CF along SAL together with clouds over the Atlantic Intertropical Convergence Zone contributes to the 20% hemispheric CF asymmetry. This leads to the imbalance in strong solar radiation, which reaches the sea surface between the tropical North and South Atlantic, and, consequently, affects climate formation in the tropical Atlantic. During the 10-year study period (July 2002-June 2012), NASA Aerosol Reanalysis (aka MERRAero) showed that, when the hemispheric asymmetry in dust aerosol optical thickness (AOT) was most pronounced (particularly in July), dust AOT averaged separately over the tropical North Atlantic was one order of magnitude higher than that averaged over the tropical South Atlantic. In the presence of such strong hemispheric asymmetry in dust AOT in July, CF averaged separately over the tropical North Atlantic exceeded that over the tropical South Atlantic by 20%. Both Multiangle Imaging Spectroradiometer measurements and MERRAero data were in agreement on seasonal variations in hemispheric aerosol asymmetry. Hemispheric asymmetry in total AOT over the Atlantic was most pronounced between March and July, when dust presence over the North Atlantic was maximal. In September and October, there was no noticeable hemispheric aerosol asymmetry between the tropical North and South Atlantic. During the season with no noticeable hemispheric aerosol asymmetry, we found no noticeable asymmetry in cloud cover.
C1 [Kishcha, Pavel; Starobinets, Boris; Alpert, Pinhas] Tel Aviv Univ, Dept Geosci, IL-69978 Tel Aviv, Israel.
[da Silva, Arlindo] NASA GSFC, Global Modeling & Assimilat Off, Greenbelt, MD 20771 USA.
[Long, Charles] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Kalashnikova, Olga] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
RP Kishcha, P (reprint author), Tel Aviv Univ, Dept Geosci, IL-69978 Tel Aviv, Israel.
EM pavelk@post.tau.ac.il
FU Office of Biological and Environmental Research of the US Department of
Energy; international Virtual Institute DESERVE (Dead Sea Research
Venue) - German Helmholtz Association
FX Dr Long acknowledges support from the Office of Biological and
Environmental Research of the US Department of Energy as part of the
Atmospheric Systems Research Program. The Tel-Aviv University team
acknowledges support from the international Virtual Institute DESERVE
(Dead Sea Research Venue), funded by the German Helmholtz Association.
NR 45
TC 1
Z9 1
U1 0
U2 3
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0143-1161
EI 1366-5901
J9 INT J REMOTE SENS
JI Int. J. Remote Sens.
PY 2015
VL 36
IS 13
BP 3423
EP 3445
DI 10.1080/01431161.2015.1060646
PG 23
WC Remote Sensing; Imaging Science & Photographic Technology
SC Remote Sensing; Imaging Science & Photographic Technology
GA CN8UJ
UT WOS:000358719600008
ER
PT J
AU Viner, BJ
Jannik, T
Stone, D
Hepworth, A
Naeher, L
Adetona, O
Blake, J
Eddy, T
AF Viner, Brian J.
Jannik, Tim
Stone, Daniel
Hepworth, Allan
Naeher, Luke
Adetona, Olorunfemi
Blake, John
Eddy, Teresa
TI Modelling and mitigating dose to firefighters from inhalation of
radionuclides in wildland fire smoke
SO INTERNATIONAL JOURNAL OF WILDLAND FIRE
LA English
DT Article
DE atmospheric dispersion; radioactive dose; radioecology
ID SAVANNA RIVER SITE; COASTAL-PLAIN; UNITED-STATES; EMISSION FACTORS;
SOUTH-CAROLINA; FOREST; WILDFIRE; BURNS
AB Firefighters responding to wildland fires where surface litter and vegetation contain radiological contamination will receive a radiological dose by inhaling resuspended radioactive material in the smoke. This may increase their lifetime risk of contracting certain types of cancer. Using published data, we modelled hypothetical radionuclide emissions, dispersion and dose for 70th and 97th percentile environmental conditions and for average and high fuel loads at the Savannah River Site. We predicted downwind concentration and potential dose to firefighters for radionuclides of interest (Cs-137, Pu-238, Sr-90 and Po-210). Predicted concentrations exceeded dose guidelines in the base case scenario emissions of 1.0x10(7)Bqha(-1) for Pu-238 at 70th percentile environmental conditions and average fuel load levels for both 4- and 14-h shifts. Under 97th percentile environmental conditions and high fuel loads, dose guidelines were exceeded for several reported cases for Sr-90, Pu-238 and Po-210. The potential for exceeding dose guidelines was mitigated by including plume rise (>2ms(-1)) or moving a small distance from the fire owing to large concentration gradients near the edge of the fire. This approach can quickly estimate potential dose from airborne radionuclides in wildland fire and assist decision-making to reduce firefighter exposure.
C1 [Viner, Brian J.; Jannik, Tim; Stone, Daniel] Savannah River Natl Lab, Aiken, SC 29808 USA.
[Hepworth, Allan; Blake, John] USDA Forest Serv Savannah River, New Ellenton, SC 29809 USA.
[Naeher, Luke; Adetona, Olorunfemi] Univ Georgia, Coll Publ Hlth, Athens, GA 30602 USA.
[Eddy, Teresa] Savannah River Nucl Solut, Aiken, SC 29801 USA.
RP Viner, BJ (reprint author), Savannah River Natl Lab, Savannah River Site, Aiken, SC 29808 USA.
EM brian.viner@srnl.doe.gov
NR 49
TC 0
Z9 0
U1 1
U2 8
PU CSIRO PUBLISHING
PI CLAYTON
PA UNIPARK, BLDG 1, LEVEL 1, 195 WELLINGTON RD, LOCKED BAG 10, CLAYTON, VIC
3168, AUSTRALIA
SN 1049-8001
EI 1448-5516
J9 INT J WILDLAND FIRE
JI Int. J. Wildland Fire
PY 2015
VL 24
IS 5
BP 723
EP 733
DI 10.1071/WF14181
PG 11
WC Forestry
SC Forestry
GA CN6WS
UT WOS:000358575700013
ER
PT J
AU Bonta, M
Limbeck, A
Quarles, CD
Oropeza, D
Russo, RE
Gonzalez, JJ
AF Bonta, Maximilian
Limbeck, Andreas
Quarles, C. Derrick, Jr.
Oropeza, Dayana
Russo, Richard E.
Gonzalez, Jhanis J.
TI A metric for evaluation of the image quality of chemical maps derived
from LA-ICP-MS experiments
SO JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
LA English
DT Article
ID INDUCTIVELY-COUPLED PLASMA; FEMTOSECOND LASER-ABLATION;
MASS-SPECTROMETRY; RESOLUTION; SAMPLES; ZN; MN; FE; CU
AB For laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) imaging experiments - as well as other techniques used for elemental or molecular mapping - the accordance of the measured distribution with the actual distribution is of utmost importance to guarantee reliability of the obtained images. In most experiments reported in the past, the experimental conditions have been chosen so that washout effects and signal carry-over are minimized by scanning the sample surface very slowly. Therefore, measurement times become very long and decently resolved images will require acquisition times of several hours up to more than one day. To increase the application range of LA-ICP-MS for imaging it is important to decrease the measurement times, which is best accomplished by increasing the scanning rates. However, depending on the instrumentation, this can lead to blurring and compromised image quality. In this work, we present a metric to compare the measured elemental distribution with their actual distribution based on a sample with visually distinguishable features. This approach allows quantitative determination of the image quality and enables comparison of multiple measurement conditions. This information can be used for method optimization, to get a reasonable tradeoff between image quality and measurement time.
C1 [Bonta, Maximilian; Limbeck, Andreas] Vienna Univ Technol, Inst Chem Technol & Analyt, A-1040 Vienna, Austria.
[Quarles, C. Derrick, Jr.; Russo, Richard E.; Gonzalez, Jhanis J.] Appl Spectra Inc, Fremont, CA 94538 USA.
[Oropeza, Dayana; Russo, Richard E.; Gonzalez, Jhanis J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Gonzalez, JJ (reprint author), Appl Spectra Inc, Fremont, CA 94538 USA.
EM jjgonzalez@lbl.gov
OI Limbeck, Andreas/0000-0001-5042-2445
FU MEIBio PhD program at the Vienna University of Technology; Chemical
Science Division, Office of Basic Energy Sciences, U.S. Department of
Energy [DE-AC02-05CH11231]
FX The authors want to thank Applied Spectra, Inc. for providing access to
instrumentation at their facility that was crucial for performing the
experiments. M.B. wants to thank the MEIBio PhD program at the Vienna
University of Technology for providing a scholarship over the period of
2013-2016. The research at LBNL was supported by the Chemical Science
Division, Office of Basic Energy Sciences, U.S. Department of Energy
under Contract no. DE-AC02-05CH11231.
NR 24
TC 5
Z9 5
U1 3
U2 15
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0267-9477
EI 1364-5544
J9 J ANAL ATOM SPECTROM
JI J. Anal. At. Spectrom.
PY 2015
VL 30
IS 8
BP 1809
EP 1815
DI 10.1039/c5ja00056d
PG 7
WC Chemistry, Analytical; Spectroscopy
SC Chemistry; Spectroscopy
GA CN5VX
UT WOS:000358500800013
ER
PT J
AU Chen, WQ
Zhang, J
Long, GK
Liu, Y
Zhang, QC
AF Chen, Wangqiao
Zhang, Jing
Long, Guankui
Liu, Yi
Zhang, Qichun
TI From non-detectable to decent: replacement of oxygen with sulfur in
naphthalene diimide boosts electron transport in organic thin-film
transistors (OTFT)
SO JOURNAL OF MATERIALS CHEMISTRY C
LA English
DT Article
ID FIELD-EFFECT TRANSISTORS; N-TYPE; HIGH-PERFORMANCE; HIGH-MOBILITY; SMALL
MOLECULES; PHYSICAL-PROPERTIES; PERYLENE DIIMIDES; SEMICONDUCTORS;
SENSORS; DESIGN
AB Enhancing the electron mobility of organic conjugated materials without tedious modification or synthesis is highly desirable and practical. In this research, we demonstrated that the electron mobility of naphthalene diimide (NDI) in thin film transistors (TFTs) under ambient conditions can be dramatically enhanced through a simple step reaction by replacing oxygen atoms with sulfur atoms. The electron mobilities of the as-prepared compounds range from non-detectable (parent NDI), to 3.0 x 10(-4) cm(2) V-1 s(-1) (NDI-1S), 3.0 x 10(-3) cm(2) V-1 s(-1) (NDI-3S), 3.7 x 10(-3) cm(2) V-1 s(-1) (NDI-2S-cis), and 0.01 cm(2) V-1 s(-1) (NDI-2S-trans) with on/off ratios as high as 4 x 10(5). Our primary result suggests that thionation could be a promising method to tune the band position and bandgap of organic semiconductors for high performance TFTs.
C1 [Chen, Wangqiao; Zhang, Jing; Long, Guankui; Zhang, Qichun] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore.
[Chen, Wangqiao; Zhang, Qichun] Nanyang Technol Univ, Inst Sports Res, Singapore 639798, Singapore.
[Liu, Yi] Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
[Zhang, Qichun] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 637371, Singapore.
RP Zhang, QC (reprint author), Nanyang Technol Univ, Sch Mat Sci & Engn, 50 Nanyang Ave, Singapore 639798, Singapore.
EM qczhang@ntu.edu.sg
RI zhang, qichun/A-2253-2011;
OI Long, Guankui/0000-0002-1826-3736
FU AcRF Tier 1 from MOE [RG 133/14]; MOE Tier 2 [ARC 20/12, ARC 2/13];
CREATE program (Nanomaterials for Energy and Water Management) from NRF,
Singapore
FX Q.Z. thanks the financial support from AcRF Tier 1 (RG 133/14) from MOE,
MOE Tier 2 (ARC 20/12 and ARC 2/13), and CREATE program (Nanomaterials
for Energy and Water Management) from NRF, Singapore.
NR 44
TC 19
Z9 19
U1 8
U2 23
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7526
EI 2050-7534
J9 J MATER CHEM C
JI J. Mater. Chem. C
PY 2015
VL 3
IS 31
BP 8219
EP 8224
DI 10.1039/c5tc01519g
PG 6
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA CN8YZ
UT WOS:000358733400027
ER
PT J
AU Charalampidis, EG
Li, F
Chong, C
Yang, J
Kevrekidis, PG
AF Charalampidis, E. G.
Li, F.
Chong, C.
Yang, J.
Kevrekidis, P. G.
TI Time-Periodic Solutions of Driven-Damped Trimer Granular Crystals
SO MATHEMATICAL PROBLEMS IN ENGINEERING
LA English
DT Article
ID NONLINEAR RESONANCES; DISCRETE BREATHERS; SOLITARY WAVES; DIMER CHAINS;
DYNAMICS; LATTICES; GENERATION; MODES
AB We consider time-periodic structures of granular crystals consisting of alternate chrome steel (S) and tungsten carbide (W) spherical particles where each unit cell follows the pattern of a 2 :1 trimer: S-W-S. The configuration at the left boundary is driven by a harmonic in-time actuation with given amplitude and frequency while the right one is a fixed wall. Similar to the case of a dimer chain, the combination of dissipation, driving of the boundary, and intrinsic nonlinearity leads to complex dynamics. For fixed driving frequencies in each of the spectral gaps, we find that the nonlinear surface modes and the states dictated by the linear drive collide in a saddle-node bifurcation as the driving amplitude is increased, beyond which the dynamics of the system becomes chaotic. While the bifurcation structure is similar for solutions within the first and second gap, those in the first gap appear to be less robust. We also conduct a continuation in driving frequency, where it is apparent that the nonlinearity of the system results in a complex bifurcation diagram, involving an intricate set of loops of branches, especially within the spectral gap. The theoretical findings are qualitatively corroborated by the experimental full-field visualization of the time-periodic structures.
C1 [Charalampidis, E. G.] Aristotle Univ Thessaloniki, Fac Engn, Sch Civil Engn, Thessaloniki 54124, Greece.
[Charalampidis, E. G.; Chong, C.; Kevrekidis, P. G.] Univ Massachusetts, Dept Math & Stat, Amherst, MA 01003 USA.
[Li, F.; Yang, J.] Univ Washington, Aeronaut & Astronaut, Seattle, WA 98195 USA.
[Chong, C.] ETH, Swiss Fed Inst Technol, Dept Mech & Proc Engn D MAVT, CH-8092 Zurich, Switzerland.
[Kevrekidis, P. G.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87544 USA.
[Kevrekidis, P. G.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA.
RP Li, F (reprint author), Univ Washington, Aeronaut & Astronaut, Seattle, WA 98195 USA.
EM lif@ciomp.ac.cn
FU National Science Foundation (NSF) [CMMI-1000337, DMS-1312856]; ERC;
US-AFOSR [FA9550-12-1-0332]; U.S. Department of Energy; ETH Zurich
Foundation [ESC-A 06-14]; NSF [CMMI-1414748]; US-ONR [N000141410388];
FP7-People [IRSES-606096]
FX E. G. Charalampidis gratefully acknowledges financial support from the
FP7-People IRSES-606096: "Topological Solitons, from Field Theory to
Cosmos". P. G. Kevrekidis acknowledges support from the National Science
Foundation (NSF) under Grants CMMI-1000337 and DMS-1312856, from the ERC
and FP7-People under Grant IRSES-606096, and from the US-AFOSR under
Grant FA9550-12-1-0332. P. G. Kevrekidis's work at Los Alamos is
supported in part by the U.S. Department of Energy. C. Chong was
partially supported by the ETH Zurich Foundation through the Seed
Project ESC-A 06-14. F. Li and J. Yang thank the support of the NSF
(CMMI-1414748) and the US-ONR (N000141410388). E. G. Charalampidis and
C. Chong thank M. O. Williams (PACM, Princeton University) for insight
regarding the AUTO codes used for the bifurcation analysis performed in
this work.
NR 50
TC 1
Z9 1
U1 2
U2 6
PU HINDAWI PUBLISHING CORP
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1024-123X
EI 1563-5147
J9 MATH PROBL ENG
JI Math. Probl. Eng.
PY 2015
AR 830978
DI 10.1155/2015/830978
PG 15
WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary
Applications
SC Engineering; Mathematics
GA CN6HE
UT WOS:000358534400001
ER
PT J
AU Wang, R
Xue, XY
Lu, WC
Liu, HW
Lai, C
Xi, K
Che, YK
Liu, JQ
Guo, SJ
Yang, DJ
AF Wang, Rui
Xue, Xuyan
Lu, Wencai
Liu, Hongwei
Lai, Chao
Xi, Kai
Che, Yanke
Liu, Jingquan
Guo, Shaojun
Yang, Dongjiang
TI Tuning and understanding the phase interface of TiO2 nanoparticles for
more efficient lithium ion storage
SO NANOSCALE
LA English
DT Article
ID ELECTROCHEMICAL PERFORMANCE; REDUCED GRAPHENE; ANODE MATERIAL;
BATTERIES; NANOFIBERS; NANOTUBE; NANOCOMPOSITES; PHOTOACTIVITY;
ADSORPTION; NANOSHEETS
AB We demonstrate that mixed-phase anatase-TiO2(B) nanoparticles can provide an interesting interphase interface with atomic-level contact for achieving more efficient Li ion storage with high capacity and cycle life. A novel lithium storage mode - "interfacial charge storage in allomorphs" (ICSA) - plays an important role in enhancing Li ion storage.
C1 [Wang, Rui; Xue, Xuyan; Lu, Wencai; Liu, Jingquan; Yang, Dongjiang] Qingdao Univ, Coll Chem & Environm Engn, Collaborat Innovat Ctr Marine Biomass Fibers Mat, Qingdao 266071, Peoples R China.
[Liu, Hongwei] Univ Sydney, ACMM, Sydney, NSW 2006, Australia.
[Lai, Chao] Jiangsu Normal Univ, Sch Chem & Chem Engn, Xuzhou 221116, Jiangsu, Peoples R China.
[Xi, Kai] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England.
[Che, Yanke] Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China.
[Guo, Shaojun] Los Alamos Natl Lab, Phys Chem & Appl Spect, Los Alamos, NM 87545 USA.
RP Guo, SJ (reprint author), Los Alamos Natl Lab, Phys Chem & Appl Spect, POB 1663, Los Alamos, NM 87545 USA.
EM sguo@lanl.gov; d.yang@qdu.edu.cn
RI Lai, Chao/A-8303-2014; Guo, Shaojun/A-8449-2011
OI Guo, Shaojun/0000-0002-5941-414X
FU National Natural Science Foundation of China [21207073, 51173087];
Australia Research Council [130104759]
FX This work was supported by the National Natural Science Foundation of
China (No. 21207073 and 51173087) and the Australia Research Council
Discovery Project (No. 130104759).
NR 35
TC 12
Z9 12
U1 7
U2 49
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 30
BP 12833
EP 12838
DI 10.1039/c5nr02582f
PG 6
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CN7LE
UT WOS:000358615200008
PM 26172091
ER
PT S
AU Shuster, J
Marsden, S
MaClean, LCW
Ball, J
Bolin, T
Southam, G
AF Shuster, Jeremiah
Marsden, Sian
MaClean, Lachlan C. W.
Ball, James
Bolin, Trudy
Southam, Gordon
BE Jenkin, GRT
Lusty, PAJ
McDonald, I
Smith, MP
Boyce, AJ
Wilkinson, JJ
TI The immobilization of gold from gold (III) chloride by a halophilic
sulphate-reducing bacterial consortium
SO ORE DEPOSITS IN AN EVOLVING EARTH
SE Geological Society Special Publication
LA English
DT Article; Book Chapter
ID X-RAY; FILAMENTOUS CYANOBACTERIA; IN-VITRO; DEPOSITION; AUSTRALIA;
COMPLEXES; MINERALS; BIOFILMS; CALCRETE; PYRITE
AB A consortium containing halophilic, dissimilatory sulphate-reducing bacteria was enriched from Basque Lake #1, located near Ashcroft, British Columbia, Canada to evaluate the role these bacteria have on the immobilization of soluble gold. The consortium immobilized increasing amounts of gold from gold (III) chloride solutions, under saline to hypersaline conditions, over time. Gold (III) chloride was reduced to elemental gold in all experimental systems. Salinity did not affect gold immobilization. Scanning electron microscopy and transmission electron microscopy demonstrated that reduced gold (III) chloride was immobilized as c. 3-10 nm gold colloids and c. 100 nm colloidal aggregates at the fluid-biofilm interface. The precipitation of gold at this organic interface protected cells within the biofilm from the 'toxic effect' of ionic gold. Analysis of these experimental systems using X-ray absorption near-edge spectroscopy confirmed that elemental gold with varying colloidal sizes formed within minutes. The immobilization of gold by halophilic sulphate-reducing bacteria highlights a possible role for the biosphere in 'intercepting' mobile gold complexes within natural, hydraulic flow paths. Based on the limited toxicity demonstrated in this experimental model, significant concentrations of elemental gold could accumulate over geological time in natural systems where soluble gold concentrations are more dilute and presumably 'non-toxic' to the biosphere.
C1 [Shuster, Jeremiah] Univ Western Ontario, Dept Earth Sci, London, ON N6A 5B7, Canada.
[Marsden, Sian] Queens Univ, Dept Geol Sci, Kingston, ON K7L 3N6, Canada.
[MaClean, Lachlan C. W.] Univ Saskatchewan, Canadian Light Source Inc, Saskatoon, SK S7N 0X4, Canada.
[Ball, James] John F Ross Collegiate Vocat Inst, Dept Phys, Guelph, ON N1E 4H1, Canada.
[Bolin, Trudy] Argonne Natl Lab, Adv Photon Source, CMC XOR Sect 9, Argonne, IL 60439 USA.
[Southam, Gordon] Univ Queensland, Sch Earth Sci, St Lucia, Qld 4072, Australia.
RP Shuster, J (reprint author), Univ Western Ontario, Dept Earth Sci, London, ON N6A 5B7, Canada.
EM jshuster@uwo.ca
OI Shuster, Jeremiah/0000-0002-9839-6618
NR 62
TC 1
Z9 1
U1 3
U2 3
PU GEOLOGICAL SOC PUBLISHING HOUSE
PI BATH
PA UNIT 7, BRASSMILL ENTERPRISE CTR, BRASSMILL LANE, BATH BA1 3JN, AVON,
ENGLAND
SN 0305-8719
BN 978-1-86239-626-5
J9 GEOL SOC SPEC PUBL
JI Geol. Soc. Spec. Publ.
PY 2015
VL 393
BP 249
EP 263
DI 10.1144/SP393.2
PG 15
WC Geology
SC Geology
GA BD2NG
UT WOS:000358931400010
ER
PT S
AU Amole, C
Ardid, M
Asner, DM
Baxter, D
Behnke, E
Bhattacharjee, P
Borsodi, H
Bou-Cabo, M
Brice, SJ
Broemmelsiek, D
Clark, K
Collar, JI
Cooper, PS
Crisler, M
Dahl, CE
Das, M
Debris, F
Dhungana, N
Farine, J
Felis, I
Filgas, R
Fines-Neuschild, M
Girard, F
Giroux, G
Hai, M
Hall, J
Harris, O
Jackson, CM
Jin, M
Krauss, C
Lafreniere, M
Laurin, M
Lawson, I
Levine, I
Lippincott, WH
Mann, E
Martin, JP
Maurya, D
Mitra, P
Neilson, R
Noble, AJ
Plante, A
Podviyanuk, R
Priya, S
Robinson, AE
Ruschman, M
Scallon, O
Seth, S
Sonnenschein, A
Starinski, N
Stekl, I
Vazquez-Jauregui, E
Wells, J
Wichoski, U
Zacek, V
Zhang, J
AF Amole, C.
Ardid, M.
Asner, D. M.
Baxter, D.
Behnke, E.
Bhattacharjee, P.
Borsodi, H.
Bou-Cabo, M.
Brice, S. J.
Broemmelsiek, D.
Clark, K.
Collar, J. I.
Cooper, P. S.
Crisler, M.
Dahl, C. E.
Das, M.
Debris, F.
Dhungana, N.
Farine, J.
Felis, I.
Filgas, R.
Fines-Neuschild, M.
Girard, F.
Giroux, G.
Hai, M.
Hall, J.
Harris, O.
Jackson, C. M.
Jin, M.
Krauss, C.
Lafreniere, M.
Laurin, M.
Lawson, I.
Levine, I.
Lippincott, W. H.
Mann, E.
Martin, J. P.
Maurya, D.
Mitra, P.
Neilson, R.
Noble, A. J.
Plante, A.
Podviyanuk, R.
Priya, S.
Robinson, A. E.
Ruschman, M.
Scallon, O.
Seth, S.
Sonnenschein, A.
Starinski, N.
Stekl, I.
Vazquez-Jauregui, E.
Wells, J.
Wichoski, U.
Zacek, V.
Zhang, J.
CA PICO Collaboration
BE Bravina, L
Foka, Y
Kabana, S
TI PICASSO, COUPP and PICO - search for dark matter with bubble chambers
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
ID DETECTORS
AB The PICASSO and COUPP collaborations use superheated liquid detectors to search for cold dark matter through the direct detection of weakly interacting massive particles (WIMPs). These experiments, located in the underground laboratory of SNOLAB, Canada, detect phase transitions triggered by nuclear recoils in the keV range induced by interactions with WIMPs. We present details of the construction and operation of these detectors as well as the results, obtained by several years of observations. We also introduce PICO, a joint effort of the two collaborations to build a second generation ton-scale bubble chamber with 250 liters of active liquid.
C1 [Amole, C.] Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada.
[Ardid, M.; Bou-Cabo, M.; Felis, I.] Univ Politecn Valencia, IGIC, Gandia 46730, Spain.
[Asner, D. M.; Hall, J.] Pacific NW Natl Lab, Richland, WA 99354 USA.
[Baxter, D.; Dahl, C. E.; Jin, M.; Zhang, J.] Northwestern Univ, Dept Phys, Evanston, IL 60208 USA.
[Behnke, E.; Borsodi, H.; Harris, O.; Levine, I.; Mann, E.; Wells, J.] Indiana Univ, Dept Phys, South Bend, IN 46634 USA.
[Bhattacharjee, P.; Das, M.; Seth, S.] Saha Inst Nucl Phys, Astroparticle Phys & Cosmol Div, Kolkata 700064, India.
[Brice, S. J.; Broemmelsiek, D.; Cooper, P. S.; Crisler, M.; Lippincott, W. H.; Ruschman, M.; Sonnenschein, A.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Clark, K.] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada.
[Collar, J. I.; Hai, M.; Neilson, R.; Robinson, A. E.] Univ Chicago, Enrico Fermi Inst, KICP, Chicago, IL 60637 USA.
[Collar, J. I.; Hai, M.; Neilson, R.; Robinson, A. E.] Univ Chicago, Dept Phys, Chicago, IL 60637 USA.
[Debris, F.; Fines-Neuschild, M.; Girard, F.; Jackson, C. M.; Lafreniere, M.; Laurin, M.; Martin, J. P.; Plante, A.; Scallon, O.; Starinski, N.; Zacek, V.] Univ Montreal, Dept Phys, Montreal, PQ H3C 3J7, Canada.
[Dhungana, N.; Farine, J.; Lawson, I.; Podviyanuk, R.; Scallon, O.; Vazquez-Jauregui, E.; Wichoski, U.] Laurentian Univ, Dept Phys, Sudbury, ON P3E 2C6, Canada.
[Filgas, R.; Stekl, I.] Czech Tech Univ, Inst Expt & Appl Phys, Prague 12800, Czech Republic.
[Krauss, C.; Mitra, P.] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada.
[Lawson, I.; Vazquez-Jauregui, E.] SNOLAB, Lively, ON P3Y 1N2, Canada.
[Maurya, D.; Priya, S.] Virginia Tech, Ctr Intelligent Mat Syst & Struct, Blacksburg, VA 24061 USA.
[Neilson, R.] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA.
RP Amole, C (reprint author), Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada.
EM robert.filgas@utef.cvut.cz
RI cabo, bou/N-2076-2014;
OI Dahl, Carl Eric/0000-0003-1637-2346
NR 18
TC 0
Z9 0
U1 0
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 04020
DI 10.1051/epjconf/20159504020
PG 8
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400083
ER
PT S
AU Bardeen, MG
AF Bardeen, Marjorie G.
BE Bravina, L
Foka, Y
Kabana, S
TI Engaging young people with our science
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
AB Communication, education and outreach are increasingly important elements of the particle physics research agenda as acknowledged in recent European Strategy and U.S. Community Summer Study reports. These efforts help develop the next generation of researchers and a scientifically literate citizenry. We describe some examples that engage young people with our science.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Bardeen, MG (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
NR 0
TC 0
Z9 0
U1 1
U2 2
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 02001
DI 10.1051/epjconf/20159502001
PG 7
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400016
ER
PT S
AU Bonechi, L
Adriani, O
Berti, E
Bongi, M
Castellini, G
D'Alessandro, R
Del Prete, M
Haguenauer, M
Itow, Y
Kasahara, K
Makino, Y
Masuda, K
Matsubara, Y
Matsubayashi, E
Menjo, H
Mitsuka, G
Muraki, Y
Okuno, Y
Papini, P
Perrot, AL
Ricciarini, S
Sako, T
Sakurai, N
Shimizu, Y
Sugiura, Y
Suzuki, T
Tamura, T
Tiberio, A
Torii, S
Tricomi, A
Turner, WC
Yoshida, K
Zhou, QD
AF Bonechi, L.
Adriani, O.
Berti, E.
Bongi, M.
Castellini, G.
D'Alessandro, R.
Del Prete, M.
Haguenauer, M.
Itow, Y.
Kasahara, K.
Makino, Y.
Masuda, K.
Matsubara, Y.
Matsubayashi, E.
Menjo, H.
Mitsuka, G.
Muraki, Y.
Okuno, Y.
Papini, P.
Perrot, A-L.
Ricciarini, S.
Sako, T.
Sakurai, N.
Shimizu, Y.
Sugiura, Y.
Suzuki, T.
Tamura, T.
Tiberio, A.
Torii, S.
Tricomi, A.
Turner, W. C.
Yoshida, K.
Zhou, Q. D.
BE Bravina, L
Foka, Y
Kabana, S
TI Latest LHCf results and preparation to the LHC run for 13 TeV
proton-proton interactions
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
ID PHOTON ENERGY-SPECTRA; COLLISIONS
AB The LHCf experiment is a CERN experiment dedicated to forward physics which is optimized to measure the neutral particle flow at extreme pseudo-rapidity values, ranging from 8.4 up to infinity. LHCf results are extremely important for the calibration of the hadronic interaction models used for the study of the development of atmospheric showers in the Earth atmosphere. Starting from the recent run of proton-Lead nucleus interactions at LHC, the LHCf and ATLAS collaborations have performed a common data taking which allows a combined study of the central and forward regions of the interaction. The latest results of LHCf, the upgrade of the detectors for the next 6.5 TeV + 6.5 TeV proton-proton run and the status of the LHCf-ATLAS common activities are summarized in this paper.
C1 [Bonechi, L.; Adriani, O.; Bongi, M.; D'Alessandro, R.; Del Prete, M.; Papini, P.; Ricciarini, S.] INFN Sect Florence, Florence, Italy.
[Adriani, O.; Berti, E.; Bongi, M.; D'Alessandro, R.; Del Prete, M.; Mitsuka, G.; Tamura, T.] Univ Florence, I-50121 Florence, Italy.
[Castellini, G.; Ricciarini, S.] IFAC CNR, Sesto Fiorentino, FI, Italy.
[Haguenauer, M.] Ecole Polytech, F-91128 Palaiseau, France.
[Itow, Y.; Makino, Y.; Masuda, K.; Matsubara, Y.; Matsubayashi, E.; Mitsuka, G.; Muraki, Y.; Okuno, Y.; Sako, T.; Sugiura, Y.; Zhou, Q. D.] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan.
[Itow, Y.; Sako, T.; Sakurai, N.] Nagoya Univ, Kobayashi Maskawa Inst Origin Particles & Univers, Nagoya, Aichi 4648601, Japan.
[Kasahara, K.; Shimizu, Y.; Suzuki, T.; Torii, S.] Waseda Univ, RISE, Tokyo, Japan.
[Menjo, H.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648601, Japan.
[Perrot, A-L.] CERN, Meyrin, Switzerland.
[Tamura, T.] Kanagawa Univ, Yokohama, Kanagawa, Japan.
[Tricomi, A.] INFN Sect Catania, Catania, Italy.
[Tricomi, A.] Univ Catania, I-95124 Catania, Italy.
[Turner, W. C.] LBNL, Berkeley, CA USA.
[Yoshida, K.] Shibaura Inst Technol, Tokyo 108, Japan.
RP Bonechi, L (reprint author), INFN Sect Florence, Florence, Italy.
EM Lorenzo.Bonechi@fi.infn.it
RI Bongi, Massimo/L-9417-2015;
OI Bongi, Massimo/0000-0002-6050-1937; Ricciarini, Sergio
Bruno/0000-0001-6176-3368
NR 9
TC 0
Z9 0
U1 2
U2 4
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 04010
DI 10.1051/epjconf/20159504010
PG 7
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400073
ER
PT S
AU Giachero, A
Artusa, DR
Avignone, FT
Azzolini, O
Balata, M
Banks, TI
Bari, G
Beeman, J
Bellini, F
Bersani, A
Biassoni, M
Brofferio, C
Bucci, C
Cai, XZ
Camacho, A
Caminata, A
Canonica, L
Cao, XG
Capelli, S
Cappelli, L
Carbone, L
Cardani, L
Casali, N
Cassina, L
Chiesa, D
Chott, N
Clemenza, M
Copello, S
Cosmelli, C
Cremonesi, O
Creswick, RJ
Cushman, JS
Dafinei, I
Dally, A
Datskov, V
Dell'Oro, S
Deninno, MM
Di Domizio, S
di Vacri, ML
Drobizheve, A
Ejzak, L
Fang, DQ
Farach, HA
Faverzani, M
Fernandes, G
Ferri, E
Ferroni, F
Fiorini, E
Franceschi, MA
Freedman, SJ
Fujikawa, BK
Gironi, L
Giuliani, A
Gorla, P
Gotti, C
Gutierrez, TD
Haller, EE
Han, K
Heeger, KM
Hennings-Yeomans, R
Hickerson, KR
Huang, HZ
Kadel, R
Kazkaz, K
Keppel, G
Kolomensky, YG
Li, YL
Ligi, C
Lim, KE
Liu, X
Ma, YG
Maiano, C
Maino, M
Martinez, M
Maruyama, RH
Mei, Y
Moggi, N
Morganti, S
Napolitano, T
Nastasi, M
Nisi, S
Nones, C
Norman, EB
Nucciotti, A
O'Donnell, T
Orio, F
Orlandi, D
Ouellet, JL
Pagliarone, CE
Pallavicini, M
Pattavina, L
Pavan, M
Pedretti, M
Pessina, G
Pettinacci, V
Piperno, G
Pira, C
Pirro, S
Pozzi, S
Previtali, E
Rampazzo, V
Rosenfeld, C
Rusconi, C
Sala, E
Sangiorgio, S
Scielzo, ND
Sisti, M
Smith, AR
Taffarello, L
Tenconi, M
Terranova, F
Tian, WD
Tomei, C
Trentalange, S
Ventura, G
Vignati, M
Wang, BS
Wang, HW
Wielgus, L
Wilson, J
Winslow, LA
Wise, T
Woodcraft, A
Zanotti, L
Zarra, C
Zhang, GQ
Zhu, BX
Zucchelli, S
AF Giachero, A.
Artusa, D. R.
Avignone, F. T., III
Azzolini, O.
Balata, M.
Banks, T. I.
Bari, G.
Beeman, J.
Bellini, F.
Bersani, A.
Biassoni, M.
Brofferio, C.
Bucci, C.
Cai, X. Z.
Camacho, A.
Caminata, A.
Canonica, L.
Cao, X. G.
Capelli, S.
Cappelli, L.
Carbone, L.
Cardani, L.
Casali, N.
Cassina, L.
Chiesa, D.
Chott, N.
Clemenza, M.
Copello, S.
Cosmelli, C.
Cremonesi, O.
Creswick, R. J.
Cushman, J. S.
Dafinei, I.
Dally, A.
Datskov, V.
Dell'Oro, S.
Deninno, M. M.
Di Domizio, S.
di Vacri, M. L.
Drobizheve, A.
Ejzak, L.
Fang, D. Q.
Farach, H. A.
Faverzani, M.
Fernandes, G.
Ferri, E.
Ferroni, F.
Fiorini, E.
Franceschi, M. A.
Freedman, S. J.
Fujikawa, B. K.
Gironi, L.
Giuliani, A.
Gorla, P.
Gotti, C.
Gutierrez, T. D.
Haller, E. E.
Han, K.
Heeger, K. M.
Hennings-Yeomans, R.
Hickerson, K. R.
Huang, H. Z.
Kadel, R.
Kazkaz, K.
Keppel, G.
Kolomensky, Yu. G.
Li, Y. L.
Ligi, C.
Lim, K. E.
Liu, X.
Ma, Y. G.
Maiano, C.
Maino, M.
Martinez, M.
Maruyama, R. H.
Mei, Y.
Moggi, N.
Morganti, S.
Napolitano, T.
Nastasi, M.
Nisi, S.
Nones, C.
Norman, E. B.
Nucciotti, A.
O'Donnell, T.
Orio, F.
Orlandi, D.
Ouellet, J. L.
Pagliarone, C. E.
Pallavicini, M.
Pattavina, L.
Pavan, M.
Pedretti, M.
Pessina, G.
Pettinacci, V.
Piperno, G.
Pira, C.
Pirro, S.
Pozzi, S.
Previtali, E.
Rampazzo, V.
Rosenfeld, C.
Rusconi, C.
Sala, E.
Sangiorgio, S.
Scielzo, N. D.
Sisti, M.
Smith, A. R.
Taffarello, L.
Tenconi, M.
Terranova, F.
Tian, W. D.
Tomei, C.
Trentalange, S.
Ventura, G.
Vignati, M.
Wang, B. S.
Wang, H. W.
Wielgus, L.
Wilson, J.
Winslow, L. A.
Wise, T.
Woodcraft, A.
Zanotti, L.
Zarra, C.
Zhang, G. Q.
Zhu, B. X.
Zucchelli, S.
BE Bravina, L
Foka, Y
Kabana, S
TI The CUORE and CUORE-0 experiments at Gran Sasso
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
ID DOUBLE-BETA DECAY; K OUTER CRYOSTAT; CONTAMINATION; VALIDATION
AB The Cryogenic Underground Observatory for Rare Events (CUORE) is an experiment to search for neutrinoless double beta decay (0 nu beta beta) in Te-130 and other rare processes. CUORE is a cryogenic detector composed of 988 TeO2 bolometers for a total mass of about 741 kg. The detector is being constructed at the Laboratori Nazionali del Gran Sasso, Italy, where it will start taking data in 2015. If the target background of 0.01 counts/(keV.kg.y) will be reached, in five years of data taking CUORE will have an half life sensitivity around 1 x 10(26) y at 90% C.L. As a first step towards CUORE a smaller experiment CUORE-0, constructed to test and demonstrate the performances expected for CUORE, has been assembled and is running. The detector is a single tower of 52 CUORE-like bolometers that started taking data in spring 2013. The status and perspectives of CUORE will be discussed, and the first CUORE-0 data will be presented.
C1 [Giachero, A.; Biassoni, M.; Brofferio, C.; Capelli, S.; Carbone, L.; Cassina, L.; Chiesa, D.; Clemenza, M.; Faverzani, M.; Ferri, E.; Fiorini, E.; Gironi, L.; Gotti, C.; Maiano, C.; Maino, M.; Nastasi, M.; Nucciotti, A.; Pavan, M.; Pozzi, S.; Sala, E.; Sisti, M.; Terranova, F.; Zanotti, L.] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy.
[Giachero, A.; Biassoni, M.; Brofferio, C.; Capelli, S.; Carbone, L.; Cassina, L.; Chiesa, D.; Clemenza, M.; Cremonesi, O.; Datskov, V.; Faverzani, M.; Ferri, E.; Fiorini, E.; Gironi, L.; Gotti, C.; Maiano, C.; Maino, M.; Nastasi, M.; Nucciotti, A.; Pavan, M.; Pessina, G.; Pozzi, S.; Previtali, E.; Rusconi, C.; Sala, E.; Sisti, M.; Terranova, F.; Zanotti, L.] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20126 Milan, Italy.
[Artusa, D. R.; Avignone, F. T., III; Chott, N.; Creswick, R. J.; Farach, H. A.; Rosenfeld, C.; Wilson, J.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Azzolini, O.; Camacho, A.; Keppel, G.; Pira, C.; Rampazzo, V.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Padua, Italy.
[Balata, M.; Bucci, C.; Canonica, L.; Cappelli, L.; Casali, N.; Dell'Oro, S.; di Vacri, M. L.; Gorla, P.; Nisi, S.; Orlandi, D.; Pagliarone, C. E.; Pattavina, L.; Pirro, S.; Zarra, C.] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67010 Laquila, Italy.
[Banks, T. I.; Drobizheve, A.; Freedman, S. J.; Hennings-Yeomans, R.; Kolomensky, Yu. G.; O'Donnell, T.; Ouellet, J. L.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Banks, T. I.; Freedman, S. J.; Fujikawa, B. K.; Han, K.; Kadel, R.; Kolomensky, Yu. G.; Mei, Y.; Ouellet, J. L.; Smith, A. R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Bari, G.; Deninno, M. M.; Zucchelli, S.] Ist Nazl Fis Nucl, Sez Bologna, I-40127 Bologna, Italy.
[Bari, G.; Beeman, J.; Haller, E. E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Bellini, F.; Cardani, L.; Cosmelli, C.; Ferroni, F.; Piperno, G.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[Bellini, F.; Cardani, L.; Cosmelli, C.; Dafinei, I.; Ferroni, F.; Morganti, S.; Orio, F.; Pettinacci, V.; Piperno, G.; Tomei, C.; Vignati, M.] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy.
[Copello, S.; Di Domizio, S.; Fernandes, G.; Pallavicini, M.] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy.
[Bersani, A.; Caminata, A.; Copello, S.; Di Domizio, S.; Fernandes, G.; Pallavicini, M.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy.
[Cai, X. Z.; Cao, X. G.; Fang, D. Q.; Li, Y. L.; Ma, Y. G.; Tian, W. D.; Wang, H. W.; Zhang, G. Q.] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Cushman, J. S.; Heeger, K. M.; Lim, K. E.; Maruyama, R. H.; Wise, T.] Yale Univ, Dept Phys, New Haven, CT 06520 USA.
[Dally, A.; Ejzak, L.; Wielgus, L.; Wise, T.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
[Dell'Oro, S.] Gran Sasso Sci Inst, I-67100 Laquila, Italy.
[Franceschi, M. A.; Ligi, C.; Napolitano, T.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Rome, Italy.
[Giuliani, A.; Tenconi, M.] Ctr Spectrometrie Nucl & Spectrometrie Masse, F-91405 Orsay, France.
[Gutierrez, T. D.] Calif Polytech State Univ San Luis Obispo, Dept Phys, San Luis Obispo, CA 93407 USA.
[Haller, E. E.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Hickerson, K. R.; Huang, H. Z.; Liu, X.; Trentalange, S.; Winslow, L. A.; Zhu, B. X.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Kazkaz, K.; Norman, E. B.; Pedretti, M.; Sangiorgio, S.; Scielzo, N. D.; Wang, B. S.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Martinez, M.] Univ Zaragoza, Lab Fis Nucl & Astroparticulas, E-50009 Zaragoza, Spain.
[Moggi, N.; Zucchelli, S.] Univ Bologna, Dipartimento Fis, I-40127 Bologna, Italy.
[Nones, C.] CEA Saclay, Serv Phys Particules, F-91191 Gif Sur Yvette, France.
[Norman, E. B.; Wang, B. S.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
[Taffarello, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Ventura, G.] Univ Florence, Dipartimento Fis, I-50125 Florence, Italy.
[Ventura, G.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy.
[Woodcraft, A.] Univ Edinburgh, Inst Astron, SUPA, Edinburgh EH9 3HJ, Midlothian, Scotland.
[Cappelli, L.; Pagliarone, C. E.] Univ Cassino & Lazio Merid, Dipartimento Ingn Civile & Meccan, I-03043 Cassino, Italy.
[Moggi, N.] Alma Mater Studiorum Univ Bologna, Dipartimento Sci Qualita Vita, I-47921 Bologna, Italy.
RP Giachero, A (reprint author), Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy.
EM Andrea.Giachero@mib.infn.it
RI Ma, Yu-Gang/M-8122-2013; Di Domizio, Sergio/L-6378-2014; Pallavicini,
Marco/G-5500-2012; Martinez, Maria/K-4827-2012; Nucciotti,
Angelo/I-8888-2012; Giachero, Andrea/I-1081-2013; Chiesa,
Davide/H-7240-2014; Vignati, Marco/H-1684-2013; Ferri,
Elena/L-8531-2014; Gironi, Luca/P-2860-2016; Pattavina,
Luca/I-7498-2015; capelli, silvia/G-5168-2012; Bellini,
Fabio/D-1055-2009; Casali, Nicola/C-9475-2017;
OI Ma, Yu-Gang/0000-0002-0233-9900; Di Domizio, Sergio/0000-0003-2863-5895;
Pallavicini, Marco/0000-0001-7309-3023; Martinez,
Maria/0000-0002-9043-4691; Nucciotti, Angelo/0000-0002-8458-1556;
Giachero, Andrea/0000-0003-0493-695X; Chiesa,
Davide/0000-0003-1978-1727; Vignati, Marco/0000-0002-8945-1128; Ferri,
Elena/0000-0003-1425-3669; Gironi, Luca/0000-0003-2019-0967; Pattavina,
Luca/0000-0003-4192-849X; capelli, silvia/0000-0002-0300-2752; Bellini,
Fabio/0000-0002-2936-660X; Casali, Nicola/0000-0003-3669-8247; Cushman,
Jeremy/0000-0002-8491-3725; Cardani, Laura/0000-0001-5410-118X;
Clemenza, Massimiliano/0000-0002-8064-8936; pavan,
maura/0000-0002-9723-7834; Gotti, Claudio/0000-0003-2501-9608; Pozzi,
Stefano/0000-0003-2986-1990
NR 17
TC 1
Z9 1
U1 4
U2 13
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 04024
DI 10.1051/epjconf/20159504024
PG 9
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400087
ER
PT S
AU Kaplan, DM
Kirch, K
Mancini, D
Phillips, JD
Phillips, TJ
Roberts, TJ
Terry, J
AF Kaplan, Daniel M.
Kirch, Klaus
Mancini, Derrick
Phillips, James D.
Phillips, Thomas J.
Roberts, Thomas J.
Terry, Jeff
BE Bravina, L
Foka, Y
Kabana, S
TI Measuring antimatter gravity with muonium
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
ID GAUGE
AB The gravitational acceleration of antimatter, (g) over bar, has never been directly measured and could bear importantly on our understanding of gravity, the possible existence of a fifth force, and the nature and early history of the universe. Only two avenues for such a measurement appear to be feasible: antihydrogen and muonium. The muonium measurement requires a novel, monoenergetic, low-velocity, horizontal muonium beam directed at an atom interferometer. The precision three-grating interferometer can be produced in silicon nitride or ultrananocrystalline diamond using state-of-the-art nanofabrication. The required precision alignment and calibration at the picometer level also appear to be feasible. With 100 nm grating pitch, a 10% measurement of (g) over bar can be made using some months of surface-muon beam time, and a 1% or better measurement with a correspondingly larger exposure. This could constitute the first gravitational measurement of leptonic matter, of 2nd-generation matter and, possibly, the first measurement of the gravitational acceleration of antimatter.
C1 [Kaplan, Daniel M.; Phillips, Thomas J.; Roberts, Thomas J.; Terry, Jeff] IIT, Chicago, IL 60616 USA.
[Kirch, Klaus] Paul Scherrer Inst, Villigen, Switzerland.
[Kirch, Klaus] ETH, Zurich, Switzerland.
[Mancini, Derrick] Argonne Natl Lab, Argonne, IL 60439 USA.
[Phillips, James D.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Roberts, Thomas J.] Muons Inc, Batavia, IL 60510 USA.
RP Kaplan, DM (reprint author), IIT, Chicago, IL 60616 USA.
EM kaplan@iit.edu
NR 10
TC 1
Z9 1
U1 3
U2 4
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 05008
DI 10.1051/epjconf/20159505008
PG 6
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400151
ER
PT S
AU Krutenkova, AP
Abramov, BM
Alekseev, PN
Borodin, YA
Bulychjov, SA
Dukhovskoy, IA
Khanov, AI
Kulikov, VV
Martemianov, MA
Mashnik, SG
Matsyuk, MA
Turdakina, EN
AF Krutenkova, A. P.
Abramov, B. M.
Alekseev, P. N.
Borodin, Yu. A.
Bulychjov, S. A.
Dukhovskoy, I. A.
Khanov, A. I.
Kulikov, V. V.
Martemianov, M. A.
Mashnik, S. G.
Matsyuk, M. A.
Turdakina, E. N.
BE Bravina, L
Foka, Y
Kabana, S
TI Small-angle fragmentation of carbon ions at 0.6 GeV/n: a comparison with
models of ion-ion interactions
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
AB Momentum distributions of hydrogen and helium isotopes from C-12 fragmentation at 3.5 degrees were measured at 0.6 GeV/nucleon in the FRAGM experiment at ITEP TWA heavy ion accelerator. The fragments were selected by correlated time of flight and dE/dx measurements with a magnetic spectrometer with scintillation counters. The main attention was drawn to the high momentum region where the fragment velocity exceeds the velocity of the projectile nucleus. The momentum spectra of fragments span the region of the fragmentation peak as well as the cumulative region. The differential cross sections cover six orders of magnitude. The distributions measured are compared to the predictions of three ion-ion interaction models: BC, QMD and LAQGSM03.03. The kinetic energy spectra of fragments in the projectile rest frame have an exponential shape with two temperatures, being defined by their slope parameters.
C1 [Krutenkova, A. P.; Abramov, B. M.; Alekseev, P. N.; Borodin, Yu. A.; Bulychjov, S. A.; Dukhovskoy, I. A.; Khanov, A. I.; Kulikov, V. V.; Martemianov, M. A.; Matsyuk, M. A.; Turdakina, E. N.] ITEP, Moscow 117218, Russia.
[Mashnik, S. G.] LANL, Los Alamos, NM 87545 USA.
RP Krutenkova, AP (reprint author), ITEP, Moscow 117218, Russia.
EM Anna.Krutenkova@itep.ru
NR 17
TC 1
Z9 1
U1 1
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 04035
DI 10.1051/epjconf/20159504035
PG 7
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400098
ER
PT S
AU Leontsinis, S
AF Leontsinis, Stefanos
CA ATLAS Collaboration
BE Bravina, L
Foka, Y
Kabana, S
TI Performance of the muon identification and reconstruction with the ATLAS
detector
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
AB We present the muon reconstruction algorithms used in ATLAS during the LHC run-1 and their performances in terms of efficiency, muon momentum scale and resolution. These performances have been measured using large calibration samples of J/Psi, Upsilon and Z decays, which allow to control the systematic uncertainties on efficiency and on momentum scale at the per-mille level. Corrections to be applied to simulation have been derived from the performances measurements and used in physics analyses. The impact of these correction on physics measurements, and the associated uncertainties, is also presented.
C1 [Leontsinis, Stefanos] Natl Tech Univ Athens, GR-10682 Athens, Greece.
[ATLAS Collaboration] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Leontsinis, S (reprint author), Natl Tech Univ Athens, GR-10682 Athens, Greece.
EM stefanos.leontsinis@cern.ch
NR 7
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 05009
DI 10.1051/epjconf/20159505009
PG 7
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400152
ER
PT S
AU Leontsinis, S
AF Leontsinis, Stefanos
CA ATLAS Collaboration
BE Bravina, L
Foka, Y
Kabana, S
TI Rare B decays and processes with the ATLAS detector
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
AB We present rare B decays and processes measured with the ATLAS detector. First, the associated production of vector boson + prompt J/psi that is a key process for understanding of quarkonium production mechanisms, and second, the rare B-s(0) -> mu(+)mu(-) decay, that due to its small branching fraction, is an excellent probe for physics beyond the standard model.
C1 [Leontsinis, Stefanos] Natl Tech Univ Athens, GR-10682 Athens, Greece.
[Leontsinis, Stefanos] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Leontsinis, S (reprint author), Natl Tech Univ Athens, GR-10682 Athens, Greece.
EM stefanos.leontsinis@cern.ch
NR 18
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 04036
DI 10.1051/epjconf/20159504036
PG 7
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400099
ER
PT S
AU Mannel, EJ
AF Mannel, E. J.
CA PHENIX Collaboration
BE Bravina, L
Foka, Y
Kabana, S
TI The future of PHENIX: upgrading to sPHENIX and beyond
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
AB sPHENIX is a major upgrade to the PHENIX detector enabling high-rate, large acceptance measurements of upsilons, direct photons and fully reconstructed jets in p-p, p-A and A-A collisions at the Relativistic Heavy Ion Collider (RHIC). These detailed measurements will probe the Quark Gluon Plasma near its transition temperature, in a region of strongest coupling. The sPHENIX detector consists of hadronic and electromagnetic calorimetry, and charged particle tracking in conjunction with the recently acquired 1.5 tesla BaBar super-conducting solenoid. The sPHENIX acceptance of 2 pi in azimuth and vertical bar eta vertical bar < 1.1 in pseudo-rapidity provides a factor of six improvement over the present PHENIX central spectrometer. Beyond being an excellent RHIC detector, sPHENIX provides an outstanding foundation for a detector focused on the physics of a possible future electron-ion collider at RHIC (eRHIC). In this talk we will discuss the physics potential of the sPHENIX detector, the design and technology choices for the sPHENIX calorimeters, and the conceptual design of a day-one detector for eRHIC.
C1 [Mannel, E. J.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Mannel, EJ (reprint author), Brookhaven Natl Lab, POB 5000, Upton, NY 11973 USA.
NR 5
TC 0
Z9 0
U1 1
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 04040
DI 10.1051/epjconf/20159504040
PG 6
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400103
ER
PT S
AU Nouicer, R
AF Nouicer, Rachid
CA Collaboration, P
BE Bravina, L
Foka, Y
Kabana, S
TI Probing properties of hot and dense QCD matter with heavy flavor in the
PHENIX experiment at RHIC
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
ID QUARK-GLUON PLASMA; COLLISIONS; PERSPECTIVE
AB Hadrons carrying heavy quarks, i.e. charm or bottom, are important probes of the hot and dense medium created in relativistic heavy ion collisions. Heavy quark-antiquark pairs are mainly produced in initial hard scattering processes of partons. While some of the produced pairs form bound quarkonia, the vast majority hadronize into particles carrying open heavy flavor. Heavy quark production has been studied by the PHENIX experiment at RHIC via measurements of single leptons from semi-leptonic decays in both the electron channel at mid-rapidity and in the muon channel at forward rapidity. A large suppression and azimuthal anisotropy of single electrons have been observed in Au + Au collisions at 200 GeV. These results suggest a large energy loss and flow of heavy quarks in the hot, dense matter. The PHENIX experiment has also measured J/psi production at 200 GeV in p + p, d + Au, Cu + Cu and Au + Au collisions, both at mid-and forward-rapidities, and additionally Cu + Au and U + U at forward-rapidities. In the most energetic collisions, more suppression is observed at forward rapidity than at central rapidity. This can be interpreted either as a sign of quark recombination, or as a hint of additional cold nuclear matter effects. The centrality dependence of nuclear modification factor, R-AA(p(T)), for J/psi in U + U collisions at root s(NN) = 193 GeV shows a similar trend to the lighter systems, Au + Au and Cu + Cu, at similar energy 200 GeV.
C1 [Nouicer, Rachid] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Nouicer, R (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
NR 27
TC 0
Z9 0
U1 0
U2 2
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 04046
DI 10.1051/epjconf/20159504046
PG 7
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400109
ER
PT S
AU Odyniec, G
AF Odyniec, Grazyna
BE Bravina, L
Foka, Y
Kabana, S
TI Future of the beam energy scan program at RHIC
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
ID PLUS AU REACTIONS; EXCITATION-FUNCTION; K+
AB The first exploratory phase of a very successful Beam Energy Scan Program at RHIC was completed in 2014 with Au+Au collisions at energies ranging from 7 to 39 GeV. Data sets taken earlier extended the upper limit of energy range to the root S-NN of 200 GeV. This provided an initial look into the uncharted territory of the QCD phase diagram, which is considered to be the single most important graph of our field. The main results from BES phase I, although effected by large statistical errors (steeply increasing with decreasing energy), suggest that the highest potential for discovery of the QCD Critical Point lies bellow rsNN 20 GeV. Here, we discuss the plans and the preparation for phase II of the BES program, with an order of magnitude larger statistics, which is planned for 2018-2019. The BES II will focus on Au+Au collisions at root S-NN from 20 to 7 GeV in collider mode, and from root S-NN 7 to 3.5 GeV in the fixed target mode, which will be run concurrently with the collider mode operation.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Odyniec, G (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM G_Odyniec@lbl.gov
NR 23
TC 5
Z9 5
U1 0
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 03027
DI 10.1051/epjconf/20159503027
PG 10
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400049
ER
PT S
AU Shi, SS
AF Shi, Shusu
CA STAR Collaboration
BE Bravina, L
Foka, Y
Kabana, S
TI STAR highlights on heavy ion physics
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
ID NUCLEUS-NUCLEUS COLLISIONS; QUARK-GLUON PLASMA; COLLABORATION
AB RHIC-STAR is a mid-rapidity collider experiment for studying high energy nuclear collisions. The main physics goals of STAR experiment are 1) studying the properties of the strongly coupled Quark Gluon Plasma 2) explore the QCD phase diagram structure. In these proceedings, we will review the recent results of heavy ion physics at STAR.
C1 [Shi, Shusu] Cent China Normal Univ, Key Lab Quarks & Lepton Phys MOE, Wuhan 430079, Peoples R China.
[Shi, Shusu] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
[Shi, Shusu] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
RP Shi, SS (reprint author), Cent China Normal Univ, Key Lab Quarks & Lepton Phys MOE, Wuhan 430079, Peoples R China.
EM shishusu@gmail.com
NR 25
TC 0
Z9 0
U1 1
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 03035
DI 10.1051/epjconf/20159503035
PG 8
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400057
ER
PT S
AU Vellidis, C
AF Vellidis, Costas
CA CDF Collaboration
DZero Collaboration
BE Bravina, L
Foka, Y
Kabana, S
TI Recent results from the Tevatron
SO 3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 3rd International Conference on New Frontiers in Physics (ICNFP)
CY JUL 28-AUG 06, 2014
CL Kolymbari, GREECE
AB The Tevatron p (p) over bar collider was shut down in 2011, after 10 years of high performance operation at a center-of-mass energy root s = 1.96 TeV in Run II. The two experiments, CDF and DZero, continue to analyze the collected data, aiming to extract all possible information regarding studies of the standard model and searches for new physics. A short review of some of the recent measurements at the Tevatron, and of the impact of the Tevatron program to high energy physics, is presented.
C1 [Vellidis, Costas] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Vellidis, C (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM vellidis@fnal.gov
NR 19
TC 0
Z9 0
U1 5
U2 5
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 95
AR 03036
DI 10.1051/epjconf/20159503036
PG 12
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1PP
UT WOS:000358248400058
ER
PT J
AU Wohlfahrt, G
Amelynck, C
Ammann, C
Arneth, A
Bamberger, I
Goldstein, AH
Gu, L
Guenther, A
Hansel, A
Heinesch, B
Holst, T
Hortnagl, L
Karl, T
Laffineur, Q
Neftel, A
McKinney, K
Munger, JW
Pallardy, SG
Schade, GW
Seco, R
Schoon, N
AF Wohlfahrt, G.
Amelynck, C.
Ammann, C.
Arneth, A.
Bamberger, I.
Goldstein, A. H.
Gu, L.
Guenther, A.
Hansel, A.
Heinesch, B.
Holst, T.
Hoertnagl, L.
Karl, T.
Laffineur, Q.
Neftel, A.
McKinney, K.
Munger, J. W.
Pallardy, S. G.
Schade, G. W.
Seco, R.
Schoon, N.
TI An ecosystem-scale perspective of the net land methanol flux: synthesis
of micrometeorological flux measurements
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID VOLATILE ORGANIC-COMPOUNDS; REACTION MASS-SPECTROMETRY; EDDY COVARIANCE
MEASUREMENTS; PECTIN METHYLESTERASE ACTIVITY; PONDEROSA PINE PLANTATION;
ATMOSPHERIC METHANOL; COMPOUND EMISSIONS; CARBON-DIOXIDE;
LYCOPERSICON-ESCULENTUM; NONMETHANE HYDROCARBONS
AB Methanol is the second most abundant volatile organic compound in the troposphere and plays a significant role in atmospheric chemistry. While there is consensus about the dominant role of living plants as the major source and the reaction with OH as the major sink of methanol, global methanol budgets diverge considerably in terms of source/sink estimates, reflecting uncertainties in the approaches used to model and the empirical data used to separately constrain these terms. Here we compiled micrometeorological methanol flux data from eight different study sites and reviewed the corresponding literature in order to provide a first cross-site synthesis of the terrestrial ecosystem-scale methanol exchange and present an independent data-driven view of the land-atmosphere methanol exchange. Our study shows that the controls of plant growth on production, and thus the methanol emission magnitude, as well as stomatal conductance on the hourly methanol emission variability, established at the leaf level, hold across sites at the ecosystem level. Unequivocal evidence for bi-directional methanol exchange at the ecosystem scale is presented. Deposition, which at some sites even exceeds methanol emissions, represents an emerging feature of ecosystem-scale measurements and is likely related to environmental factors favouring the formation of surface wetness. Methanol may adsorb to or dissolve in this surface water and eventually be chemically or biologically removed from it. Management activities in agriculture and forestry are shown to increase local methanol emission by orders of magnitude; however, they are neglected at present in global budgets. While contemporary net land methanol budgets are overall consistent with the grand mean of the micrometeorological methanol flux measurements, we caution that the present approach of simulating methanol emission and deposition separately is prone to opposing systematic errors and does not allow for full advantage to be taken of the rich information content of micrometeorological flux measurements.
C1 [Wohlfahrt, G.] Univ Innsbruck, Inst Ecol, A-6020 Innsbruck, Austria.
[Wohlfahrt, G.] European Acad Bolzano, Bolzano, Italy.
[Amelynck, C.; Schoon, N.] Belgian Inst Space Aeron, Brussels, Belgium.
[Ammann, C.; Neftel, A.] Res Stn Agroscope Climate & Air Pollut Grp, Zurich, Switzerland.
[Arneth, A.; Bamberger, I.] Karlsruhe Inst Technol, IMK IFU, Garmisch Partenkirchen, Germany.
[Bamberger, I.; Hoertnagl, L.] Swiss Fed Inst Technol, Inst Agr Sci, Zurich, Switzerland.
[Goldstein, A. H.] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA.
[Gu, L.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Guenther, A.] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA.
[Hansel, A.] Univ Innsbruck, Inst Ion Phys & Appl Phys, A-6020 Innsbruck, Austria.
[Heinesch, B.] Univ Liege, Exchanges Ecosyst Atmosphere, Dept Biosyst Engn BIOSE, Gembloux, Belgium.
[Holst, T.] Lund Univ, Dept Phys Geog & Ecosyst Sci, Lund, Sweden.
[Karl, T.] Univ Innsbruck, Inst Meteorol & Geophys, A-6020 Innsbruck, Austria.
[Laffineur, Q.] Royal Meteorol Inst, Brussels, Belgium.
[McKinney, K.; Munger, J. W.] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA.
[Pallardy, S. G.] Univ Missouri, Dept Forestry, Columbia, MO USA.
[Schade, G. W.] Texas A&M Univ, Dept Atmospher Sci, College Stn, TX USA.
[Seco, R.] Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA.
RP Wohlfahrt, G (reprint author), Univ Innsbruck, Inst Ecol, A-6020 Innsbruck, Austria.
EM georg.wohlfahrt@uibk.ac.at
RI Seco, Roger/F-7124-2011; Karl, Thomas/D-1891-2009; Schade,
Gunnar/G-9000-2012; Hansel, Armin/F-3915-2010; Wohlfahrt,
Georg/D-2409-2009; Munger, J/H-4502-2013; Gu, Lianhong/H-8241-2014
OI Seco, Roger/0000-0002-2078-9956; Karl, Thomas/0000-0003-2869-9426;
Schade, Gunnar/0000-0003-4327-0839; Hansel, Armin/0000-0002-1062-2394;
Wohlfahrt, Georg/0000-0003-3080-6702; Munger, J/0000-0002-1042-8452; Gu,
Lianhong/0000-0001-5756-8738
FU Austrian National Science Fund (FWF) [P19849-B16, P23267-B16, L518-N20];
Tyrolean Science Fund (TWF) [Uni-404/486, Uni-404/1083]; EU
Industry-Academia Partnerships and Pathways Programme (IAPP) [218065];
Belgian Science Policy Office (BELSPO) through the IMPECVOC (Impact of
Phenology and Environmental Conditions on BVOC Emissions from Forest
Ecosystems) research project [SD/TE/03A]; Fundacion Ramon Areces; PNNL
Laboratory Directed Research and Development programme; Office of
Science (BER), US Department of Energy
FX The work presented in this study received financial support from the
following sources: the Austrian National Science Fund (FWF; P19849-B16,
P23267-B16 and L518-N20), the Tyrolean Science Fund (TWF; Uni-404/486
and Uni-404/1083), the EU Industry-Academia Partnerships and Pathways
Programme (IAPP; 218065), the Belgian Science Policy Office (BELSPO)
(SD/TE/03A) through the IMPECVOC (Impact of Phenology and Environmental
Conditions on BVOC Emissions from Forest Ecosystems) research project,
the Fundacion Ramon Areces through a postdoctoral fellowship awarded to
Roger Seco, and the PNNL Laboratory Directed Research and Development
programme support for Alex Guenther. Flux measurements at Harvard Forest
are a component of the Harvard Forest Long-term Ecological Research
(LTER) site and are additionally supported by the Office of Science
(BER), US Department of Energy. The authors would like to acknowledge
the support of this work by Martin Graus, Markus Muller, Taina
Ruuskanen, Ralf Schnitzhofer, Mario Walser, Alfred Unterberger, and
Kevin P. Hosman.
NR 89
TC 11
Z9 11
U1 2
U2 16
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2015
VL 15
IS 13
BP 7413
EP 7427
DI 10.5194/acp-15-7413-2015
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CM8UT
UT WOS:000357978300016
ER
PT J
AU Liu, SQ
Tang, ZR
Sun, YG
Colmenares, JC
Xu, YJ
AF Liu, Siqi
Tang, Zi-Rong
Sun, Yugang
Colmenares, Juan Carlos
Xu, Yi-Jun
TI One-dimension-based spatially ordered architectures for solar energy
conversion
SO CHEMICAL SOCIETY REVIEWS
LA English
DT Review
ID BRANCHED NANOWIRE HETEROSTRUCTURES; PHOTOCATALYTIC H-2 PRODUCTION;
FERMI-LEVEL EQUILIBRATION; ENHANCED FIELD-EMISSION; TEMPLATE-FREE
SYNTHESIS; CARBON NANOTUBE HYBRID; VISIBLE-LIGHT; SEMICONDUCTOR
NANOWIRES; HYDROGEN GENERATION; NANOROD ARRAYS
AB The severe consequences of fossil fuel consumption have resulted in a need for alternative sustainable sources of energy. Conversion and storage of solar energy via a renewable method, such as photocatalysis, holds great promise as such an alternative. One-dimensional (1D) nanostructures have gained attention in solar energy conversion because they have a long axis to absorb incident sunlight yet a short radial distance for separation of photogenerated charge carriers. In particular, well-ordered spatially high dimensional architectures based on 1D nanostructures with well-defined facets or anisotropic shapes offer an exciting opportunity for bridging the gap between 1D nanostructures and the micro and macro world, providing a platform for integration of nanostructures on a larger and more manageable scale into high-performance solar energy conversion applications. In this review, we focus on the progress of photocatalytic solar energy conversion over controlled one-dimension-based spatially ordered architecture hybrids. Assembly and classification of these novel architectures are summarized, and we discuss the opportunity and future direction of integration of 1D materials into high-dimensional, spatially organized architectures, with a perspective toward improved collective performance in various artificial photoredox applications.
C1 [Liu, Siqi; Xu, Yi-Jun] Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China.
[Liu, Siqi; Tang, Zi-Rong; Xu, Yi-Jun] Fuzhou Univ, Coll Chem, Fuzhou 350108, Peoples R China.
[Sun, Yugang] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Colmenares, Juan Carlos] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland.
RP Colmenares, JC (reprint author), Polish Acad Sci, Inst Phys Chem, Ul Kasprzaka 44-52, PL-01224 Warsaw, Poland.
EM jcarloscolmenares@ichf.edu.pl; yjxu@fzu.edu.cn
RI Sun, Yugang /A-3683-2010; Xu, Yi-Jun/B-2566-2016
OI Sun, Yugang /0000-0001-6351-6977; Xu, Yi-Jun/0000-0002-2195-1695
FU Key Project of National Natural Science Foundation of China [U1463204];
National Natural Science Foundation of China (NSFC) [20903023, 20903022,
21173045]; Award Program for Minjiang Scholar Professorship; Natural
Science Foundation (NSF) of Fujian Province [2012J06003]; Program for
Returned High-Level Overseas Chinese Scholars of Fujian province;
Project Sponsored by the Scientific Research Foundation for the Returned
Overseas Chinese Scholars, State Education Ministry
FX The support by Key Project of National Natural Science Foundation of
China (U1463204), the National Natural Science Foundation of China
(NSFC) (20903023, 20903022, 21173045), the Award Program for Minjiang
Scholar Professorship, the Natural Science Foundation (NSF) of Fujian
Province for Distinguished Young Investigator Grant (2012J06003),
Program for Returned High-Level Overseas Chinese Scholars of Fujian
province, and the Project Sponsored by the Scientific Research
Foundation for the Returned Overseas Chinese Scholars, State Education
Ministry, is gratefully acknowledged. Dr Colmenares is grateful for the
support from the Institute of Physical Chemistry of PAS.
NR 210
TC 101
Z9 101
U1 32
U2 162
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0306-0012
EI 1460-4744
J9 CHEM SOC REV
JI Chem. Soc. Rev.
PY 2015
VL 44
IS 15
BP 5053
EP 5075
DI 10.1039/c4cs00408f
PG 23
WC Chemistry, Multidisciplinary
SC Chemistry
GA CN1ZI
UT WOS:000358219300006
PM 25856797
ER
PT J
AU Albuquerque, GH
Fitzmorris, RC
Ahmadi, M
Wannenmacher, N
Thallapally, PK
McGrail, BP
Herman, GS
AF Albuquerque, Gustavo H.
Fitzmorris, Robert C.
Ahmadi, Majid
Wannenmacher, Nick
Thallapally, Praveen K.
McGrail, B. Peter
Herman, Gregory S.
TI Gas-liquid segmented flow microwave-assisted synthesis of MOF-74(Ni)
under moderate pressures
SO CRYSTENGCOMM
LA English
DT Article
ID METAL-ORGANIC FRAMEWORKS; HYDROGEN STORAGE; CARBON-DIOXIDE; MICROFLUIDIC
APPROACH; COORDINATION POLYMER; WATER-ADSORPTION; ROOM-TEMPERATURE;
SURFACE-AREA; NANOPARTICLES; REACTOR
AB The metal organic framework, MOF-74(Ni), was synthesized in a continuous flow microwave-assisted reactor obtaining a high space-time yield (similar to 90 g h(-1) L-1) and 96.5% conversion of reagents. Separation of the nucleation and growth steps was performed by using uniform and rapid microwave heating to induce nucleation, which allowed a substantial increase in conversion for shorter reaction times under mild pressure. High yields were achieved in minutes, as opposed to days for typical batch syntheses, with excellent control over the material's properties due to more uniform nucleation, and the separation of the nucleation and growth steps. Optimization of the microwave reactor parameters led to improvements in MOF-74(Ni) crystallinity, reagent conversion, and production rates. Differences in MOF-74(Ni) crystallinity were observed as smaller grains were formed when higher microwave zone temperatures were used. Crystallinity differences led to different final adsorption properties and surface areas. Herein we show that a continuous high space-time yield synthesis of MOF-74(Ni) allows control over nucleation using microwave heating.
C1 [Albuquerque, Gustavo H.; Fitzmorris, Robert C.; Ahmadi, Majid; Wannenmacher, Nick; Herman, Gregory S.] Oregon State Univ, Sch Chem Biol & Environm Engn, Corvallis, OR 97331 USA.
[Thallapally, Praveen K.; McGrail, B. Peter] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Albuquerque, GH (reprint author), Oregon State Univ, Sch Chem Biol & Environm Engn, Corvallis, OR 97331 USA.
EM greg.herman@oregonstate.edu
OI Thallapally, Praveen Kumar/0000-0001-7814-4467
FU United States Department of Energy through ARPA-e; Department of the
Navy
FX This work was funded by the United States Department of Energy through
ARPA-e and the Department of the Navy.
NR 59
TC 6
Z9 6
U1 12
U2 49
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1466-8033
J9 CRYSTENGCOMM
JI Crystengcomm
PY 2015
VL 17
IS 29
BP 5502
EP 5510
DI 10.1039/c5ce00848d
PG 9
WC Chemistry, Multidisciplinary; Crystallography
SC Chemistry; Crystallography
GA CM9IH
UT WOS:000358021400018
ER
PT J
AU Fernandez, CA
Nune, SK
Annapureddy, HV
Dang, LX
McGrail, BP
Zheng, F
Polikarpov, E
King, DL
Freeman, C
Brooks, KP
AF Fernandez, Carlos A.
Nune, Satish K.
Annapureddy, Harsha V.
Dang, Liem X.
McGrail, B. Peter
Zheng, Feng
Polikarpov, Evgueni
King, David L.
Freeman, Charles
Brooks, Kriston P.
TI Hydrophobic and moisture-stable metal-organic frameworks
SO DALTON TRANSACTIONS
LA English
DT Article
ID POST-SYNTHETIC MODIFICATION; ZEOLITIC IMIDAZOLATE FRAMEWORKS; SURFACE
FREE-ENERGY; CARBON-DIOXIDE; POSTSYNTHETIC MODIFICATION; HYDROTHERMAL
STABILITY; COORDINATION POLYMER; HYDROGEN STORAGE; CO2 CAPTURE; FLUE-GAS
AB Metal-organic frameworks (MOFs) have proved to be very attractive for applications including gas storage, separation, sensing and catalysis. In particular, CO2 separation from flue gas in post-combustion processes is one of the main focuses of research among the scientific community. One of the major issues that are preventing the successful commercialization of these novel materials is their high affinity towards water that not only compromises gas sorption capacity but also the chemical stability. In this paper, we demonstrate a novel post-synthesis modification approach to modify MOFs towards increasing hydrophobic behaviour and chemical stability against moisture without compromising CO2 sorption capacity. Our approach consists of incorporating hydrophobic moieties on the external surface of the MOFs via physical adsorption. The rationale behind this concept is to increase the surface hydrophobicity in the porous materials without the need of introducing bulky functionalities inside the pore which compromises the sorption capacity toward other gases. We herein report preliminary results on routinely studied MOF materials [MIL-101(Cr) and NiDOBDC] demonstrating that the polymer-modified MOFs retain CO2 sorption capacity while reducing the water adsorption up to three times, with respect to the un-modified materials, via an equilibrium effect. Furthermore, the water stability of the polymer-functionalized MOFs is significantly higher than the water stability of the bare material. Molecular dynamic simulations demonstrated that this equilibrium effect implies a fundamental and permanent change in the water sorption capacity of MOFs. This approach can also be employed to render moisture stability and selectivity to MOFs that find applications in gas separations, catalysis and sensing where water plays a critical role in compromising MOF performance and recyclability.
C1 [Fernandez, Carlos A.; Nune, Satish K.; Annapureddy, Harsha V.; Dang, Liem X.; McGrail, B. Peter; Zheng, Feng; Polikarpov, Evgueni; King, David L.; Freeman, Charles; Brooks, Kriston P.] Pacific NW Natl Lab, Energy & Environm Directorate, Hydrocarbon Proc Grp, Appl Funct Mat, Richland, WA 99352 USA.
RP Fernandez, CA (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, Hydrocarbon Proc Grp, Appl Funct Mat, Richland, WA 99352 USA.
EM carlos.fernandez@pnnl.gov; satish.nune@pnnl.gov
RI Zheng, Feng/C-7678-2009
OI Zheng, Feng/0000-0002-5427-1303
FU PNNL Energy Conversion Initiative; Office of Fossil Energy, U.S.
Department of Energy (DOE); U.S. Department of Energy (DOE), Office of
Basic Energy Sciences (BES), Division of Chemical Sciences, Geosciences
and Biosciences; Battelle Memorial Institute for the Department of
Energy [DE-AC05-76RL01830]
FX This work was supported by PNNL Energy Conversion Initiative and Office
of Fossil Energy, U.S. Department of Energy (DOE). The U.S. Department
of Energy (DOE), Office of Basic Energy Sciences (BES), Division of
Chemical Sciences, Geosciences and Biosciences funded the work performed
by L. X. D. PNNL is a multiprogramming laboratory operated by Battelle
Memorial Institute for the Department of Energy under Contract
DE-AC05-76RL01830.
NR 64
TC 4
Z9 4
U1 26
U2 119
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 30
BP 13490
EP 13497
DI 10.1039/c5dt00606f
PG 8
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CN1VM
UT WOS:000358208400013
PM 25970023
ER
PT S
AU Jeong, JH
Bea, YS
Joung, M
Kim, D
Goodman, TP
Sauter, O
Sakamoto, K
Kajiwara, K
Oda, Y
Kwak, JG
Namkung, W
Cho, MH
Park, H
Hosea, J
Ellis, R
AF Jeong, J. H.
Bea, Y. S.
Joung, M.
Kim, D.
Goodman, T. P.
Sauter, O.
Sakamoto, K.
Kajiwara, K.
Oda, Y.
Kwak, J. G.
Namkung, W.
Cho, M. H.
Park, H.
Hosea, J.
Ellis, R.
BE Kubo, S
TI Demonstration of sawtooth period control with EC waves in KSTAR plasma
SO EC18 - 18TH JOINT WORKSHOP ON ELECTRON CYCLOTRON EMISSION AND ELECTRON
CYCLOTRON RESONANCE HEATING
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 18th Joint Workshop on Electron Cyclotron Emission and Electron
Cyclotron Resonance Heating (EC)
CY APR 22-25, 2014
CL Natl Inst Fus Sci, Nara, JAPAN
SP Communicat & Power Ind, Toshiba Elect Tube & Device, Nara Visitors Bur
HO Natl Inst Fus Sci
ID CURRENT DRIVE; TOKAMAK; TCV
AB The sawtooth period control in tokamak is important issue in recent years because the sawtooth crash can trigger TM/NTM instabilities and drive plasmas unstable. The control of sawtooth period by the modification of local current profile near the q=1 surface using ECCD has been demonstrated in a number of tokamaks [1, 2] including KSTAR. As a result, developing techniques to control the sawtooth period as a way of controlling the onset of NTM has been an important area of research in recent years [3]. In 2012 KSTAR plasma campaign, the sawtooth period control is carried out by the different deposition position of EC waves across the q=1 surface. The sawtooth period is shortened by on-axis co-ECCD (destabilization), and the stabilization of the sawtooth is also observed by off-axis co-ECCD at outside q=1 surface. In 2013 KSTAR plasma campaign, the sawtooth locking experiment with periodic forcing of 170 GHz EC wave is carried out to control the sawtooth period. The optimal target position which lengthens the sawtooth period is investigated by performing a scan of EC beam deposition position nearby q=1 surface at the toroidal magnetic field of 2.9 T and plasma current of 0.7 MA. The sawtooth locking by the modulated EC beam is successfully demonstrated as in [3-5] with the scan of modulation-frequency and duty-ratio at the low beta (8N-0.5) plasma. In this paper, the sawteeth behavior by the location of EC beam and the preliminary result of the sawtooth locking experiments in KSTAR will be presented.
C1 [Jeong, J. H.; Bea, Y. S.; Joung, M.; Kwak, J. G.] Natl Fus Res Inst, Taejon, South Korea.
[Kim, D.; Goodman, T. P.; Sauter, O.] Ecole Polytech Fed Lausanne, CRPP, CH-1015 Lausanne, Switzerland.
[Sakamoto, K.; Kajiwara, K.; Oda, Y.] Japan Atom Energy Agcy, Naka, Ibaraki, Japan.
[Namkung, W.; Cho, M. H.] POSTECH, Dept Phys, Pohang, South Korea.
[Park, H.] UNIST, Sch Elect & Comp Engn, Ulsan, South Korea.
[Hosea, J.; Ellis, R.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Jeong, JH (reprint author), Natl Fus Res Inst, Taejon, South Korea.
EM jhjeong@nfri.re.kr
NR 19
TC 0
Z9 0
U1 0
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 87
AR 02016
DI 10.1051/epjconf/20158702016
PG 5
WC Physics, Fluids & Plasmas; Physics, Multidisciplinary
SC Physics
GA BD1ST
UT WOS:000358327700027
ER
PT S
AU Lohr, J
Anderson, JP
Cengher, M
Ellis, RA
Gorelov, YA
Kolemen, E
Lambot, T
Murakami, DD
Myrabo, L
Noraky, S
Parkin, KL
Ponce, D
Torrezan, A
AF Lohr, J.
Anderson, J. P.
Cengher, M.
Ellis, R. A.
Gorelov, Y. A.
Kolemen, E.
Lambot, T.
Murakami, D. D.
Myrabo, L.
Noraky, S.
Parkin, K. L.
Ponce, D.
Torrezan, A.
BE Kubo, S
TI Performance History and Upgrades for the DIII-D Gyrotron Complex
SO EC18 - 18TH JOINT WORKSHOP ON ELECTRON CYCLOTRON EMISSION AND ELECTRON
CYCLOTRON RESONANCE HEATING
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 18th Joint Workshop on Electron Cyclotron Emission and Electron
Cyclotron Resonance Heating (EC)
CY APR 22-25, 2014
CL Natl Inst Fus Sci, Nara, JAPAN
SP Communicat & Power Ind, Toshiba Elect Tube & Device, Nara Visitors Bur
HO Natl Inst Fus Sci
AB The gyrotron installation on the DIII-D tokamak has been in operation at the second harmonic of the electron cyclotron resonance since the mid-1990s. Prior to that a large installation of ten 60 GHz tubes was operated at the fundamental resonance. The system has been upgraded regularly and is an everyday tool for experiments on DIII-D.
C1 [Lohr, J.; Anderson, J. P.; Cengher, M.; Gorelov, Y. A.; Noraky, S.; Ponce, D.; Torrezan, A.] Gen Atom Co, San Diego, CA 92186 USA.
[Ellis, R. A.; Kolemen, E.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Lambot, T.; Parkin, K. L.] Carnegie Mellon Univ, Moffett Field, CA 94035 USA.
[Murakami, D. D.] NASA, Expt Aerophys Branch, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Myrabo, L.] Lightcraft Technol Inc, Bennington, VT 05201 USA.
RP Lohr, J (reprint author), Gen Atom Co, POB 85608, San Diego, CA 92186 USA.
EM lohr@fusion.gat.com
NR 5
TC 0
Z9 0
U1 1
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 87
AR 02009
DI 10.1051/epjconf/20158702009
PG 4
WC Physics, Fluids & Plasmas; Physics, Multidisciplinary
SC Physics
GA BD1ST
UT WOS:000358327700020
ER
PT S
AU Pinsker, RI
Austin, ME
Ernst, DR
Garofalo, AM
Grierson, BA
Hosea, JC
Luce, TC
Marinoni, A
Mckee, GR
Perkins, RJ
Petty, CC
Porkolab, M
Rost, JC
Schmitz, L
Solomon, WM
Taylor, G
Turco, F
AF Pinsker, R. I.
Austin, M. E.
Ernst, D. R.
Garofalo, A. M.
Grierson, B. A.
Hosea, J. C.
Luce, T. C.
Marinoni, A.
Mckee, G. R.
Perkins, R. J.
Petty, C. C.
Porkolab, M.
Rost, J. C.
Schmitz, L.
Solomon, W. M.
Taylor, G.
Turco, F.
BE Kubo, S
TI Application of ECH to the Study of Transport in ITER Baseline
Scenario-like Discharges in DIII-D
SO EC18 - 18TH JOINT WORKSHOP ON ELECTRON CYCLOTRON EMISSION AND ELECTRON
CYCLOTRON RESONANCE HEATING
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 18th Joint Workshop on Electron Cyclotron Emission and Electron
Cyclotron Resonance Heating (EC)
CY APR 22-25, 2014
CL Natl Inst Fus Sci, Nara, JAPAN
SP Communicat & Power Ind, Toshiba Elect Tube & Device, Nara Visitors Bur
HO Natl Inst Fus Sci
ID SHEAR; TURBULENCE; PLASMA
AB Recent DIII-D experiments in the ITER Baseline Scenario (IBS) have shown strong increases in fluctuations and correlated reduction of confinement associated with entering the electron-heating-dominated regime with strong electron cyclotron heating (ECH). The addition of 3.2 MW of 110 GHz EC power deposited at rho similar to 0.42 to IBS discharges with similar to 3 MW of neutral beam injection causes large increases in low-k and medium-k turbulent density fluctuations observed with Doppler backscatter (DBS), beam emission spectroscopy (BES) and phase-contrast imaging (PCI) diagnostics, correlated with decreases in the energy, particle, and momentum confinement times. Power balance calculations show the electron heat diffusivity chi(e) increases significantly in the mid-radius region 0.42
reduction on copper and silver electrodes.
NR 36
TC 17
Z9 17
U1 14
U2 69
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 29
BP 18924
EP 18936
DI 10.1039/c5cp03283k
PG 13
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CN1VD
UT WOS:000358207400007
PM 26103939
ER
PT J
AU Ortiz, BR
Peng, HW
Lopez, A
Parilla, PA
Lany, S
Toberer, ES
AF Ortiz, Brenden R.
Peng, Haowei
Lopez, Armando
Parilla, Philip A.
Lany, Stephan
Toberer, Eric S.
TI Effect of extended strain fields on point defect phonon scattering in
thermoelectric materials
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID LATTICE THERMAL-CONDUCTIVITY; QUASI-RANDOM STRUCTURES; HALF-HEUSLER
COMPOUNDS; SOLID-SOLUTIONS; DIELECTRICITY CONSTANTS; HETEROGENOUS
SUBSTANCES; SEMICONDUCTOR ALLOYS; TRANSPORT-PROPERTIES; SNSE; CHEMISTRY
AB The design of thermoelectric materials often involves the integration of point defects (alloying) as a route to reduce the lattice thermal conductivity. Classically, the point defect scattering strength follows from simple considerations such as mass contrast and the presence of induced strain fields (e.g. radius contrast, coordination changes). While the mass contrast can be easily calculated, the associated strain fields induced by defect chemistry are not readily predicted and are poorly understood. In this work, we use classical and first principles calculations to provide insight into the strain field component of phonon scattering from isoelectronic point defects. Our results also integrate experimental measurements on bulk samples of SnSe and associated alloys with S, Te, Ge, Sr and Ba. These efforts highlight that the strength and extent of the resulting strain field depends strongly on defect chemistry. Strain fields can have a profound impact on the local structure. For example, in alloys containing Ba, the strain fields have significant spatial extent (1 nm in diameter) and produce large shifts in the atomic equilibrium positions (up to 0.5 angstrom). Such chemical complexity suggests that computational assessment of point defects for thermal conductivity depression should be hindered. However, in this work, we present and verify several computational descriptors that correlate well with the experimentally measured strain fields. Furthermore, these descriptors are conceptually transparent and computationally inexpensive, allowing computation to provide a pivotal role in the screening of effective alloys. The further development of point defect engineering could complement or replace nanostructuring when optimizing the thermal conductivity, offering the benefits of thermodynamic stability, and providing more clearly defined defect chemistry.
C1 [Ortiz, Brenden R.; Lopez, Armando; Toberer, Eric S.] Colorado Sch Mines, Golden, CO 80401 USA.
[Peng, Haowei; Parilla, Philip A.; Lany, Stephan] Natl Renewable Energy Lab, Golden, CO USA.
RP Ortiz, BR (reprint author), Colorado Sch Mines, Golden, CO 80401 USA.
EM bortiz@mines.edu
RI Peng, Haowei/K-4654-2012;
OI Peng, Haowei/0000-0002-6502-8288; Lany, Stephan/0000-0002-8127-8885
FU US Department of Energy, within the Laboratory Directed Research and
Development program [DE-AC36-08GO28308]; National Science Foundation
[1334713]
FX This work was supported by the US Department of Energy under contract
No. DE-AC36-08GO28308 to NREL, within the Laboratory Directed Research
and Development program. The use of high performance computing resources
of NREL's Computational Science Center is gratefully acknowledged.
E.S.T., B.R.O., and A.L. acknowledge support from the National Science
Foundation under Grant 1334713. The authors thank Prashun Gorai, Lauryn
Baranowski, and Vladan Stevanovic for their valuable discussions.
NR 59
TC 8
Z9 8
U1 10
U2 77
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 29
BP 19410
EP 19423
DI 10.1039/c5cp02174j
PG 14
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CN1VD
UT WOS:000358207400057
PM 26145414
ER
PT J
AU McMahon, JM
Schatz, GC
Gray, SK
AF McMahon, Jeffrey M.
Schatz, George C.
Gray, Stephen K.
TI Plasmonics in the ultraviolet with the poor metals Al, Ga, In, Sn, Tl,
Pb, and Bi (vol 15, pg 5415, 2013)
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Correction
ID OPTICAL-PROPERTIES; THALLIUM; GALLIUM; FILMS
C1 [McMahon, Jeffrey M.; Schatz, George C.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[McMahon, Jeffrey M.; Gray, Stephen K.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
RP Gray, SK (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
EM gray@anl.gov
NR 9
TC 1
Z9 1
U1 1
U2 14
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 29
BP 19670
EP 19671
DI 10.1039/c5cp90112j
PG 2
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CN1VD
UT WOS:000358207400084
PM 26135550
ER
PT S
AU Bickel, DL
AF Bickel, Douglas L.
BE Ranney, KI
Doerry, A
Gilbreath, GC
Hawley, CT
TI Coherence Model for Building Layover in Interferometric SAR
SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIX; and Active and Passive
Signatures VI
CY APR 20-23, 2015
CL Baltimore, MD
SP SPIE
DE IFSAR; InSAR; antenna; building; layover
AB The complex coherence function describes information that is necessary to create maps from interferometric synthetic aperture radar (InSAR). This coherence function is complicated by building layover. This paper presents a mathematical model for this complex coherence in the presence of building layover and shows how it can describe intriguing phenomena observed in real interferometric SAR data.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Bickel, DL (reprint author), Sandia Natl Labs, POB 5800,MS 0519, Albuquerque, NM 87185 USA.
EM dlbicke@sandia.gov
NR 13
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-577-3
J9 PROC SPIE
PY 2015
VL 9461
AR 946121
DI 10.1117/12.2181678
PG 8
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD1LU
UT WOS:000358140900062
ER
PT S
AU Campbell, JB
Wang, Q
Ade-Bello, J
Caudana, H
Trujillo, NB
Bhatta, I
Dunkel, R
Atwood, T
Doerry, A
Gerstle, WH
Santhanam, B
Hayat, MM
AF Campbell, Justin B.
Wang, Qi
Ade-Bello, Jelili
Caudana, Humberto
Trujillo, Nicole B.
Bhatta, Ishwor
Dunkel, Ralf
Atwood, Thomas
Doerry, Armin
Gerstle, Walter H.
Santhanam, Balu
Hayat, Majeed M.
BE Ranney, KI
Doerry, A
Gilbreath, GC
Hawley, CT
TI SAR-based vibrometry using the fractional Fourier transform
SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIX; and Active and Passive
Signatures VI
CY APR 20-23, 2015
CL Baltimore, MD
SP SPIE
DE Vibration estimation; discrete fractional Fourier transform; extended
Kalman filter; Fourier transform; subspace method; synthetic aperture
radar; signal-to-clutter ratio
ID RADAR
AB A fundamental assumption when applying Synthetic Aperture Radar (SAR) to a ground scene is that all targets are motionless. If a target is not stationary, but instead vibrating in the scene, it will introduce a non-stationary phase modulation, termed the micro-Doppler effect, into the returned SAR signals. Previously, the authors proposed a pseudo-subspace method, a modification to the Discrete Fractional Fourier Transform (DFRFT), which demonstrated success for estimating the instantaneous accelerations of vibrating objects. However, this method may not yield reliable results when clutter in the SAR image is strong. Simulations and experimental results have shown that the DFRFT method can yield reliable results when the signal-to-clutter ratio (SCR) >8 dB. Here, we provide the capability to determine a target's frequency and amplitude in a low SCR environment by presenting two methods that can perform vibration estimations when SCR <3 dB. The first method is a variation and continuation of the subspace approach proposed previously in conjunction with the DFRFT. In the second method, we employ the dual-beam SAR collection architecture combined with the extended Kalman filter (EKF) to extract information from the returned SAR signals about the vibrating target. We also show the potential for extending this SAR-based capability to remotely detect and classify objects housed inside buildings or other cover based on knowing the location of vibrations as well as the vibration histories of the vibrating structures that house the vibrating objects.
C1 [Campbell, Justin B.; Wang, Qi; Ade-Bello, Jelili; Atwood, Thomas; Doerry, Armin; Hayat, Majeed M.] Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87106 USA.
[Campbell, Justin B.; Wang, Qi; Ade-Bello, Jelili; Bhatta, Ishwor; Atwood, Thomas; Doerry, Armin; Santhanam, Balu; Hayat, Majeed M.] Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87131 USA.
[Caudana, Humberto; Trujillo, Nicole B.; Gerstle, Walter H.] Univ New Mexico, Dept Civil Engn, Albuquerque, NM 87131 USA.
[Dunkel, Ralf] Gen Atom Aeronaut Syst Inc, Poway, CA 92121 USA.
[Atwood, Thomas; Doerry, Armin] Sandia Natl Labs, Albuquerque, NM 87123 USA.
RP Campbell, JB (reprint author), Univ New Mexico, Ctr High Technol Mat, 1313 Goddard SE, Albuquerque, NM 87106 USA.
EM campbellj@unm.edu; qwang@gmail.com; aadebell@unm.edu;
b.caudana@gmail.com; nbtrujillo@unm.edu; bhattacg@gmail.com;
dunkel@ga.com; tdatwoo@sandia.gov; awdoerr@sandia.gov; gerstle@unm.edu;
bsanthan@ece.unm.edu; hayat@unm.edu
NR 30
TC 0
Z9 0
U1 2
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-577-3
J9 PROC SPIE
PY 2015
VL 9461
AR 94610O
DI 10.1117/12.2180660
PG 11
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD1LU
UT WOS:000358140900020
ER
PT S
AU Doerry, AW
AF Doerry, A. W.
BE Ranney, KI
Doerry, A
Gilbreath, GC
Hawley, CT
TI Balancing I/Q data in radar range-Doppler images
SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIX; and Active and Passive
Signatures VI
CY APR 20-23, 2015
CL Baltimore, MD
SP SPIE
DE radar; balance; spurious; quadrature
AB Modern high-performance radar systems' data is often rendered to distinguish between positive and negative frequencies necessitating complex data values, with real and imaginary constituents typically termed In-phase (I) and Quadrature (Q) elements respectively. Processing this data generally assumes well-balanced I/Q data, which may often be problematic due to non-ideal component and circuit behavior. We offer a number of techniques to mitigate the effects of I/Q imbalance.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Doerry, AW (reprint author), Sandia Natl Labs, POB 5800,MS 0519, Albuquerque, NM 87185 USA.
EM awdoerr@sandia.gov
NR 8
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-577-3
J9 PROC SPIE
PY 2015
VL 9461
AR 94611Y
DI 10.1117/12.2075745
PG 14
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD1LU
UT WOS:000358140900060
ER
PT S
AU Doerry, AW
AF Doerry, A. W.
BE Ranney, KI
Doerry, A
Gilbreath, GC
Hawley, CT
TI Comments on radar interference sources and mitigation techniques
SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIX; and Active and Passive
Signatures VI
CY APR 20-23, 2015
CL Baltimore, MD
SP SPIE
DE radar; interference; jamming; spoofing
AB Radar Intelligence, Surveillance, and Reconnaissance (ISR) does not always involve cooperative or even friendly environments or targets. The environment in general, and an adversary in particular, may offer numerous characteristics and impeding techniques to diminish the effectiveness of a radar ISR sensor. These generally fall under the banner of jamming, spoofing, or otherwise interfering with the Electromagnetic (EM) signals required by the radar sensor. Consequently mitigation techniques are often prudent to retain efficacy of the radar sensor. We discuss in general terms a number of mitigation techniques.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Doerry, AW (reprint author), Sandia Natl Labs, POB 5800,MS 0519, Albuquerque, NM 87185 USA.
EM awdoerr@sandia.gov
NR 16
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-577-3
J9 PROC SPIE
PY 2015
VL 9461
AR 94611X
DI 10.1117/12.2075743
PG 8
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD1LU
UT WOS:000358140900059
ER
PT S
AU Doerry, AW
AF Doerry, A. W.
BE Ranney, KI
Doerry, A
Gilbreath, GC
Hawley, CT
TI Balancing radar receiver channels with commutation
SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIX; and Active and Passive
Signatures VI
CY APR 20-23, 2015
CL Baltimore, MD
SP SPIE
DE radar; channels; balancing; calibration; commutation
AB The trend in high-performance ground-surveillance radar systems is towards employing multiple receiver channels of data. Often, key to performance is the ability to achieve and maintain balance between the radar channels. This can be quite problematic for high-performance radar modes. It is shown that commutation of radar receiver channels can be employed to facilitate channel balancing. Commutation is the switching, trading, toggling, or multiplexing of the channels between signal paths. Commutation allows modulating the imbalance energy away from the balanced energy in Doppler, where it can be mitigated with filtering.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Doerry, AW (reprint author), Sandia Natl Labs, POB 5800,MS 0519, Albuquerque, NM 87185 USA.
EM awdoerr@sandia.gov
NR 4
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-577-3
J9 PROC SPIE
PY 2015
VL 9461
AR 94611W
DI 10.1117/12.2075742
PG 11
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD1LU
UT WOS:000358140900058
ER
PT S
AU Doerry, AW
Dubbert, DF
Tise, BL
AF Doerry, A. W.
Dubbert, D. F.
Tise, B. L.
BE Ranney, KI
Doerry, A
Gilbreath, GC
Hawley, CT
TI Spurious effects of analog-to-digital conversion nonlinearities on radar
range-Doppler maps
SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIX; and Active and Passive
Signatures VI
CY APR 20-23, 2015
CL Baltimore, MD
SP SPIE
DE radar; spurs; ADC; analog-to-digital; interference; nonlinearity
AB High-performance radar operation, particularly Ground Moving Target Indicator (GMTI) radar modes, are very sensitive to anomalous effects of system nonlinearities. System nonlinearities generate harmonic spurs that at best degrade, and at worst generate false target detections. One significant source of nonlinear behavior is the Analog to Digital Converter (ADC). One measure of its undesired nonlinearity is its Integral Nonlinearity (INL) specification. We examine in this paper the relationship of INL to radar performance; in particular its manifestation in a range-Doppler map or image.
C1 [Doerry, A. W.; Dubbert, D. F.; Tise, B. L.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Doerry, AW (reprint author), Sandia Natl Labs, POB 5800,MS 0519, Albuquerque, NM 87185 USA.
EM awdoerr@sandia.gov; dfdubbe@sandia.gov; bltise@sandia.gov
NR 12
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-577-3
J9 PROC SPIE
PY 2015
VL 9461
AR 94611V
DI 10.1117/12.2075741
PG 16
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD1LU
UT WOS:000358140900057
ER
PT S
AU Musgrove, C
West, JC
AF Musgrove, Cameron
West, James C.
BE Ranney, KI
Doerry, A
Gilbreath, GC
Hawley, CT
TI Application of Equalization Notch to Improve Synthetic Aperture Radar
Coherent Data Products
SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIX and Active and Passive
Signatures VI
CY APR 20-23, 2015
CL Baltimore, MD
SP SPIE
DE synthetic aperture radar; interference mitigation; coherent change
detection
ID SAR; INTERFEROMETRY; SUPPRESSION
AB Interference and interference mitigation techniques degrade synthetic aperture radar (SAR) coherent data products. Radars utilizing stretch processing present a unique challenge for many mitigation techniques because the interference signal itself is modified through stretch processing from its original signal characteristics. Many sources of interference, including constant tones, are only present within the fast-time sample data for a limited number of samples, depending on the radar and interference bandwidth. Adaptive filtering algorithms to estimate and remove the interference signal that rely upon assuming stationary interference signal characteristics can be ineffective. An effective mitigation method, called notching, forces the value of the data samples containing interference to zero. However, as the number of data samples set to zero increases, image distortion and loss of resolution degrade both the image product and any second order image products.
Techniques to repair image distortions, 1 are effective for point-like targets. However, these techniques are not designed to model and repair distortions in SAR image terrain. Good terrain coherence is important for SAR second order image products because terrain occupies the majority of many scenes. For the case of coherent change detection it is the terrain coherence itself that determines the quality of the change detection image.
This paper proposes an unique equalization technique that improves coherence over existing notching techniques. First, the proposed algorithm limits mitigation to only the samples containing interference, unlike adaptive filtering algorithms, so the remaining samples are not modified. Additionally, the mitigation adapts to changing interference power such that the resulting correction equalizes the power across the data samples. The result is reduced distortion and improved coherence for the terrain. SAR data demonstrates improved coherence from the proposed equalization correction over existing notching methods for chirped interference sources.
C1 [Musgrove, Cameron] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[West, James C.] Oklahoma State Univ, Stillwater, OK 74078 USA.
RP Musgrove, C (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM cmusgro@sandia.gov; jwest@okstate.edu
NR 23
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-577-3
J9 PROC SPIE
PY 2015
VL 9461
AR 94610T
DI 10.1117/12.2175587
PG 13
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD1LU
UT WOS:000358140900025
ER
PT S
AU Raynal, AM
Dubbert, DF
Burns, BL
Hensley, WH
AF Raynal, Ann Marie
Dubbert, Dale F.
Burns, Bryan L.
Hensley, William H., Jr.
BE Ranney, KI
Doerry, A
Gilbreath, GC
Hawley, CT
TI Radome Effects on Coherent Change Detection Radar Systems
SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIX and Active and Passive
Signatures VI
CY APR 20-23, 2015
CL Baltimore, MD
SP SPIE
DE SAR; CCD; Synthetic Aperture Radar; Coherent Change Detection; Radome
AB A radome, or radar dome, protects a radar system from exposure to the elements. Unfortunately, radomes can affect the radiation pattern of the enclosed antenna. The co-design of a platform's radome and radar is ideal to mitigate any deleterious effects of the radome. However, maintaining structural integrity and other platform flight requirements, particularly when integrating a new radar onto an existing platform, often limits radome electrical design choices. Radars that rely heavily on phase measurements such as monopulse, interferometric, or coherent change detection (CCD) systems require particular attention be paid to components, such as the radome, that might introduce loss and phase variations as a function of the antenna scan angle. Material properties, radome wall construction, overall dimensions, and shape characteristics of a radome can impact insertion loss and phase delay, antenna beamwidth and sidelobe level, polarization, and ultimately the impulse response of the radar, among other things, over the desired radar operating parameters. The precision-guided munitions literature has analyzed radome effects on monopulse systems for well over half a century. However, to the best of our knowledge, radome-induced errors on CCD performance have not been described. The impact of radome material and wall construction, shape, dimensions, and antenna characteristics on CCD is examined herein for select radar and radome examples using electromagnetic simulations.
C1 [Raynal, Ann Marie; Dubbert, Dale F.; Burns, Bryan L.; Hensley, William H., Jr.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Raynal, AM (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM amrayna@sandia.gov
NR 14
TC 0
Z9 0
U1 1
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-577-3
J9 PROC SPIE
PY 2015
VL 9461
AR 94610N
DI 10.1117/12.2179180
PG 15
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD1LU
UT WOS:000358140900019
ER
PT S
AU Sen, S
Barhen, J
AF Sen, Satyabrata
Barhen, Jacob
BE Ranney, KI
Doerry, A
Gilbreath, GC
Hawley, CT
TI Adaptive OFDM Waveform Design for Spatio-Temporal-Sparsity Exploited
STAP Radar
SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIX and Active and Passive
Signatures VI
CY APR 20-23, 2015
CL Baltimore, MD
SP SPIE
DE OFDAI signal; adaptive waveform design; spatio-temporal sparsity;
coherence measure
AB We propose a sparsity-based space-tune adaptive processing (STAP) algorithm to detect a slowly-moving target using an orthogonal frequency division multiplexing (OFDM) radar. The motivation of employing an OFDM signal is that it improves the target-detectability from the interfering signals by increasing the frequency diversity of the system. However, due to the addition of one extra dimension in terms of frequency, the adaptive degrees-of-freedom in an OFDM-STAP also increases. Therefore, to avoid the construction a fully-adaptive OFDM-STAP, we propose a sparsity-based STAP algorithm. We observe that the interference spectrum is inherently sparse in the spatio-temporal domain, as the clutter responses occupy only a diagonal ridge on the spatio-temporal plane and the jammer signals interfere only from a few spatial directions. hence, we exploit that sparsity to develop an efficient STAP technique that utilizes considerably lesser number Of secondary data compared to the other existing STAP techniques, and produces nearly optimum STAP performance. In addition to designing I he STAP filter, we propose to optimally design the transmit, OFDM signals by maximizing, the output signal-to-interference-plus-noise ratio (SIN It) in order to improve the STAP-performance. The computation of output SINR depends on the estimated value of the interference covariance Matrix, Which we obtain by applying the sparse recovery algorithm. Therefore, we analytically assess the effects of the synthesized OFDM coefficients on the sparse recovery of the interference covariance matrix by computing the coherence measure of the sparse measurement matrix. Our numerical examples demonstrate the achieved STAP-performance due to sparsity-based technique and adaptive waveform design.
C1 [Sen, Satyabrata; Barhen, Jacob] Oak Ridge Natl Lab, Div Math & Comp Sci, Ctr Engn Sci Adv Res, Oak Ridge, TN 37831 USA.
RP Sen, S (reprint author), Oak Ridge Natl Lab, Div Math & Comp Sci, Ctr Engn Sci Adv Res, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM sens@ornl.gov; barhenj@ornl.gov
OI Sen, Satyabrata/0000-0001-9918-4409
NR 26
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-577-3
J9 PROC SPIE
PY 2015
VL 9461
AR 946123
DI 10.1117/12.2189525
PG 9
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD1LU
UT WOS:000358140900064
ER
PT S
AU Steinbach, RM
Koch, MW
Moya, MM
Goold, J
AF Steinbach, Ryan M.
Koch, Mark W.
Moya, Mary M.
Goold, Jeremy
BE Ranney, KI
Doerry, A
Gilbreath, GC
Hawley, CT
TI Building detection in SAR imagery
SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIX and Active and Passive
Signatures VI
CY APR 20-23, 2015
CL Baltimore, MD
SP SPIE
DE SAR; Building Detection; SAR artifact effects; shadows; bright lines
ID EDGE-DETECTION; URBAN AREAS
AB Current techniques for building detection in Synthetic Aperture Radar (SAR) imagery can be computationally expensive and/or enforce stringent requirements for data acquisition. We present a technique that is effective and efficient at determining an approximate building location from multi-pass single-pol SAR imagery. This approximate location provides focus-of-attention to specific image regions for subsequent processing. The proposed technique assumes that for the desired image, a preprocessing algorithm has detected and labeled bright lines and shadows. Because we observe that buildings produce bright lines and shadows with predetermined relationships, our algorithm uses a graph clustering technique to find groups of bright lines and shadows that create a building. The nodes of the graph represent bright line and shadow regions, while the arcs represent the relationships between the bright lines and shadow. Constraints based on angle of depression and the relationship between connected bright lines and shadows are applied to remove unrelated arcs. Once the related bright lines and shadows are grouped, their locations are combined to provide an approximate building location. Experimental results are presented to demonstrate the outcome of this technique.
C1 [Steinbach, Ryan M.; Koch, Mark W.; Moya, Mary M.; Goold, Jeremy] Sandia Natl Labs, Albuquerque, NM 87158 USA.
RP Steinbach, RM (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87158 USA.
EM rmstein@sandia.gov
NR 12
TC 0
Z9 0
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-577-3
J9 PROC SPIE
PY 2015
VL 9461
AR 94610E
DI 10.1117/12.2177037
PG 10
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD1LU
UT WOS:000358140900011
ER
PT J
AU Nemeth, K
Unni, AK
Kalnmals, C
Segre, CU
Kaduk, J
Bloom, ID
Maroni, VA
AF Nemeth, Karoly
Unni, Aditya K.
Kalnmals, Christopher
Segre, Carlo U.
Kaduk, James
Bloom, Ira D.
Maroni, Victor A.
TI The synthesis of ternary acetylides with tellurium: Li2TeC2 and Na2TeC2
SO RSC ADVANCES
LA English
DT Article
ID TRANSITION-METAL ACETYLIDES; CRYSTAL-STRUCTURES; M-I; ALKALI; RB; NA;
CS; PD; A(2)MC(2); IFEFFIT
AB The synthesis of ternary acetylides Li2TeC2 and Na2TeC2 is presented as the first example of ternary acetylides with metalloid elements instead of transition metals. The synthesis was carried out by the direct reaction of the corresponding bialkali acetylides with tellurium powder in liquid ammonia. Alternatively, the synthesis of Na2TeC2 was also carried out by the direct reaction of tellurium powder and two equivalents of NaC2H in liquid ammonia leading to Na2TeC2 and acetylene gas through an equilibrium containing the assumed NaTeC2H molecules besides the reactants and the products. The resulting disordered crystalline materials were characterized by X-ray diffraction and Raman spectroscopy. Implications of these new syntheses on the synthesis of other ternary acetylides with metalloid elements and transition metals are also discussed.
C1 [Nemeth, Karoly; Segre, Carlo U.] IIT, Dept Phys, Chicago, IL 60616 USA.
[Unni, Aditya K.; Kalnmals, Christopher; Kaduk, James] IIT, Dept Chem, Chicago, IL 60616 USA.
[Segre, Carlo U.] IIT, CSRRI, Chicago, IL 60616 USA.
[Bloom, Ira D.; Maroni, Victor A.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Nemeth, K (reprint author), IIT, Dept Phys, Chicago, IL 60616 USA.
EM nemeth@agni.phys.iit.edu
RI Segre, Carlo/B-1548-2009; Nemeth, Karoly/L-7806-2014; BM,
MRCAT/G-7576-2011
OI Segre, Carlo/0000-0001-7664-1574; Nemeth, Karoly/0000-0001-8366-1397;
FU Department of Energy; MRCAT member institutions; U.S. DOE
[DE-AC02-05CH11231]; DOE Office of Science by Argonne National
Laboratory [DE-AC02-06CH11357]; U. S. Department of Energy, Office of
Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
FX The authors gratefully acknowledge technical help and discussions with
Prof. A. Hock, Mr M. Weimer, Mr M. Foody and other members of the Hock
group at IIT, as well as Lili Kang and Songyang Han and other members of
the Unni group and technical help from Dr B. Shyam (SLAC/Stanford) and
Prof. J. Terry (IIT). MRCAT operations are supported by the Department
of Energy and the MRCAT member institutions. This research used
computational resources at NERSC (U.S. DOE DE-AC02-05CH11231) and
structural science resources of the Advanced Photon Source, a U.S.
Department of Energy (DOE) Office of Science User Facility operated for
the DOE Office of Science by Argonne National Laboratory under Contract
no. DE-AC02-06CH11357. Use of the Raman spectroscopy instrumentation at
the Center for Nanoscale Materials of 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 28
TC 0
Z9 0
U1 1
U2 5
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2046-2069
J9 RSC ADV
JI RSC Adv.
PY 2015
VL 5
IS 69
BP 55986
EP 55993
DI 10.1039/c5ra08983b
PG 8
WC Chemistry, Multidisciplinary
SC Chemistry
GA CM6MQ
UT WOS:000357803200044
ER
PT J
AU Snezhko, A
Aranson, IS
AF Snezhko, Alexey
Aranson, Igor S.
TI Velocity statistics of dynamic spinners in out-of-equilibrium magnetic
suspensions
SO SOFT MATTER
LA English
DT Article
ID GRANULAR GAS; FLUCTUATIONS; COLLOIDS
AB We report on the velocity statistics of an out-of-equilibrium magnetic suspension in a spinner phase confined at a liquid interface. The suspension is energized by a uniaxial alternating magnetic field applied parallel to the interface. In a certain range of the magnetic field parameters the system spontaneously undergoes a transition into a dynamic spinner phase (ensemble of hydrodynamically coupled magnetic micro-rotors) comprised of two subsystems: self-assembled spinning chains and a gas of rotating single particles. Both subsystems coexist in a dynamic equilibrium via continuous exchange of the particles. Spinners excite surface flows that significantly increase particle velocity correlations in the system. For both subsystems the velocity distributions are strongly non-Maxwellian with nearly exponential high-energy tails, P(v) similar to exp(-vertical bar v/v0 vertical bar). The kurtosis, the measure of the deviation from the Gaussian statistics, is influenced by the frequency of the external magnetic field. We show that in the single-particle gas the dissipation is mostly collisional, whereas the viscous damping dominates over collisional dissipation for the self-assembled spinners. The dissipation increases with the frequency of the applied magnetic field. Our results provide insights into non-trivial dissipation mechanisms determining self-assembly processes in out-of-equilibrium magnetic suspensions.
C1 [Snezhko, Alexey; Aranson, Igor S.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Snezhko, A (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM snezhko@anl.gov
FU U.S. DOE, Office of Basic Energy Sciences, Division of Materials Science
and Engineering [DE AC02-06CH11357]
FX The research was supported by the U.S. DOE, Office of Basic Energy
Sciences, Division of Materials Science and Engineering under the
Contract No. DE AC02-06CH11357.
NR 40
TC 2
Z9 2
U1 5
U2 17
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
EI 1744-6848
J9 SOFT MATTER
JI Soft Matter
PY 2015
VL 11
IS 30
BP 6055
EP 6061
DI 10.1039/c5sm01163a
PG 7
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA CN3TW
UT WOS:000358350700009
PM 26133687
ER
PT S
AU Barthelmie, RJ
Churchfield, MJ
Moriarty, PJ
Lundquist, JK
Oxley, GS
Hahn, S
Pryor, SC
AF Barthelmie, R. J.
Churchfield, M. J.
Moriarty, P. J.
Lundquist, J. K.
Oxley, G. S.
Hahn, S.
Pryor, S. C.
BE Masson, C
PorteAngel, F
Schepers, G
VanKuik, G
Larsen, G
Mann, J
Rodrigo, JS
Meyers, J
Barthelmie, R
AubrunSanches, S
Leweke, T
TI The role of atmospheric stability/turbulence on wakes at the Egmond aan
Zee offshore wind farm
SO WAKE CONFERENCE 2015
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT Wake Conference
CY JUN 09-11, 2015
CL Uppsala Univ Campus Gotland, Visby, SWEDEN
HO Uppsala Univ Campus Gotland
ID STABILITY
AB The aim of the paper is to present results from the NREL SOWFA project that compares simulations from models of different fidelity to meteorological and turbine data from the Egmond aan Zee wind farm. Initial results illustrate that wake behavior and impacts are strongly impacted by turbulence intensity Pt This includes both power losses from wakes and loading illustrated by the out of plane bending moment. Here we focus on understanding the relationship between turbulence and atmospheric stability and whether power losses due to wakes can effectively be characterized by measures of turbulence alone or whether atmospheric stability as a whole plays a fundamental role in wake behavior. The study defines atmospheric stability using the Monin-Obukhov length estimated based on the temperature difference between 116 and 70 m. The data subset selected using this method for the calculation of the Monin-Obukhov length indicate little diurnal or directional dependence of the stability classes but a dominance of stable classes in the spring/unstable classes in fall and of near-neutral classes at high wind speeds (Figure 2). The analysis is complicated by the need to define turbulence intensity. We can select the ratio of the standard deviation of wind speed to mean wind speed in each observation period using data from the meteorological mast, in which case a substantial amount of data must be excluded due to the presence of the wind farm. An alternative is to use data from the wind turbines which could provide a larger data set for analysis. These approaches are examined and compared to illustrate their robustness. Finally, power losses from wakes are categorized according to stability and/or turbulence in order to understand their relative importance in determining the behavior of wind turbine wakes.
C1 [Barthelmie, R. J.; Pryor, S. C.] Cornell Univ, Ithaca, NY 14853 USA.
[Churchfield, M. J.; Moriarty, P. J.; Lundquist, J. K.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Lundquist, J. K.] Univ Colorado, Boulder, CO 80309 USA.
[Oxley, G. S.; Hahn, S.] Vestas Wind Syst AS, DK-8200 Aarhus, Denmark.
RP Barthelmie, RJ (reprint author), Cornell Univ, Ithaca, NY 14853 USA.
EM rb737@cornell.edu
NR 11
TC 0
Z9 0
U1 2
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 625
AR 012002
DI 10.1088/1742-6596/625/1/012002
PG 10
WC Energy & Fuels; Physics, Applied; Physics, Multidisciplinary
SC Energy & Fuels; Physics
GA BD1IG
UT WOS:000358047700002
ER
PT S
AU Lee, S
Churchfield, M
Sirnivas, S
Moriarty, P
Nielsen, FG
Skaare, B
Byklum, E
AF Lee, S.
Churchfield, M.
Sirnivas, S.
Moriarty, P.
Nielsen, F. G.
Skaare, B.
Byklum, E.
BE Masson, C
PorteAngel, F
Schepers, G
VanKuik, G
Larsen, G
Mann, J
Rodrigo, JS
Meyers, J
Barthelmie, R
AubrunSanches, S
Leweke, T
TI Coalescing Wind Turbine Wakes
SO WAKE CONFERENCE 2015
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT Wake Conference
CY JUN 09-11, 2015
CL Uppsala Univ Campus Gotland, Visby, SWEDEN
HO Uppsala Univ Campus Gotland
ID TURBULENCE; MODEL
AB A team of researchers from the National Renewable Energy Laboratory and Statoil used large-eddy simulations to numerically investigate the merging wakes from upstream offshore wind turbines. Merging wakes are typical phenomena in wind farm flows in which neighboring turbine wakes consolidate to form complex flow patterns that are as yet not well understood. In the present study, three 6-MW turbines in a row were subjected to a neutrally stable atmospheric boundary layer flow. As a result, the wake from the farthest upstream turbine conjoined the downstream wake, which significantly altered the subsequent velocity deficit structures, turbulence intensity, and the global meandering behavior. The complexity increased even more when the combined wakes from the two upstream turbines mixed with the wake generated by the last turbine, thereby forming a "triplet" structure. Although the influence of the wake generated by the first turbine decayed with downstream distance, the mutated wakes from the second turbine continued to influence the downstream wake. Two mirror-image angles of wind directions that yielded partial wakes impinging on the downstream turbines yielded asymmetric wake profiles that could be attributed to the changing flow directions in the rotor plane induced by the Coriolis force. The turbine wakes persisted for extended distances in the present study, which is a result of low aerodynamic surface roughness typically found in offshore conditions.
C1 [Lee, S.; Churchfield, M.; Sirnivas, S.; Moriarty, P.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Nielsen, F. G.; Skaare, B.; Byklum, E.] STATOIL, Stavanger, Norway.
[Nielsen, F. G.] Univ Bergen, Inst Geophys, N-5020 Bergen, Norway.
RP Lee, S (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM Sang.Lee@nrel.gov
NR 8
TC 1
Z9 1
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 625
AR 012023
DI 10.1088/1742-6596/625/1/012023
PG 9
WC Energy & Fuels; Physics, Applied; Physics, Multidisciplinary
SC Energy & Fuels; Physics
GA BD1IG
UT WOS:000358047700023
ER
PT S
AU Martinez-Tossas, LA
Churchfield, MJ
Meneveau, C
AF Martinez-Tossas, Luis A.
Churchfield, Matthew J.
Meneveau, Charles
BE Masson, C
PorteAngel, F
Schepers, G
VanKuik, G
Larsen, G
Mann, J
Rodrigo, JS
Meyers, J
Barthelmie, R
AubrunSanches, S
Leweke, T
TI Large Eddy Simulation of wind turbine wakes: detailed comparisons of two
codes focusing on effects of numerics and subgrid modeling
SO WAKE CONFERENCE 2015
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT Wake Conference
CY JUN 09-11, 2015
CL Uppsala Univ Campus Gotland, Visby, SWEDEN
HO Uppsala Univ Campus Gotland
ID TURBULENCE
AB In this work we report on results from a detailed comparative numerical study from two Large Eddy Simulation (LES) codes using the Actuator Line Model (ALM). The study focuses on prediction of wind turbine wakes and their breakdown when subject to uniform inflow. Previous studies have shown relative insensitivity to subgrid modeling in the context of a finite-volume code. The present study uses the low dissipation pseudo-spectral LES code from Johns Hopkins University (LESGO) and the second-order, finite-volume OpenFOAM code (SOWFA) from the National Renewable Energy Laboratory. When subject to uniform inflow, the loads on the blades are found to be unaffected by subgrid models or numerics, as expected. The turbulence in the wake and the location of transition to a turbulent state are affected by the subgrid-scale model and the numerics.
C1 [Martinez-Tossas, Luis A.; Meneveau, Charles] Johns Hopkins Univ, Baltimore, MD 21218 USA.
[Churchfield, Matthew J.] Natl Renewable Energy Lab, Golden, CO USA.
RP Martinez-Tossas, LA (reprint author), Johns Hopkins Univ, Baltimore, MD 21218 USA.
EM tony.mtos@mail.com
OI Meneveau, Charles/0000-0001-6947-3605
NR 18
TC 1
Z9 1
U1 0
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 625
AR 012024
DI 10.1088/1742-6596/625/1/012024
PG 10
WC Energy & Fuels; Physics, Applied; Physics, Multidisciplinary
SC Energy & Fuels; Physics
GA BD1IG
UT WOS:000358047700024
ER
PT S
AU Koshelkin, AV
Wong, CY
AF Koshelkin, Andrew V.
Wong, Cheuk-Yin
BE Fabbri, F
Giacomelli, P
TI Dynamics of Quarks in a 2D Flux Tube
SO XLIV INTERNATIONAL SYMPOSIUM ON MULTIPARTICLE DYNAMICS (ISMD 2014)
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 44th International Symposium on Multiparticle Dynamics (ISMD)
CY SEP 08-12, 2014
CL Bologna, ITALY
SP Inst Nazl Fis Nucl, Univ Bologna, Alma Mater Studiorum, Assoc Franco Rimondi
ID PROTON-PROTON COLLISIONS; PARTICLE-PRODUCTION; JET FRAGMENTATION;
ROOT-S=900 GEV; PP COLLISIONS; LHC; ALICE; MODEL; SPECTRA
AB On the basis of a compactification of the (3+1) into (1+1) dimensional space-time [1], the quark states inside the 2D flux tube are studied for the case of a linear transverse confining potential. The derived states are classified by both the projections of the orbital momentum and the spin along the tube direction. The spectrum of the fermion states is evaluated. It is found that the energy eigenvalues of the quarks appear to be approximately related to the square root of the eigenvalues of the two-dimensional harmonic oscillator.
C1 [Koshelkin, Andrew V.] Moscow Inst Phys & Engn, Moscow 115409, Russia.
[Wong, Cheuk-Yin] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37830 USA.
RP Koshelkin, AV (reprint author), Moscow Inst Phys & Engn, Kashirskoye Shosse 31, Moscow 115409, Russia.
EM A_Kosh@internets.ru; wongc@ornl.gov
NR 21
TC 0
Z9 0
U1 1
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 90
AR 01004
DI 10.1051/epjconf/20159001004
PG 4
WC Physics, Multidisciplinary; Physics, Particles & Fields
SC Physics
GA BD1SO
UT WOS:000358323100004
ER
PT S
AU Moggi, N
Artusa, DR
Avignone, FT
Azzolini, O
Balata, M
Banks, TI
Bari, G
Beeman, J
Bellini, F
Bersani, A
Biassoni, M
Brofferio, C
Bucci, C
Cai, XZ
Camacho, A
Caminata, A
Canonica, L
Cao, XG
Capelli, S
Cappelli, L
Carbone, L
Cardani, L
Casali, N
Cassina, L
Chiesa, D
Chott, N
Clemenza, M
Copello, S
Cosmelli, C
Cremonesi, O
Creswick, RJ
Cushman, JS
Dafinei, I
Dally, A
Datskov, V
Dell'oro, S
Deninno, MM
Di Domizio, S
Di Vacri, ML
Drobizhev, A
Ejzak, L
Fang, DQ
Farach, HA
Faverzani, M
Fernandes, G
Ferri, E
Ferroni, F
Fiorini, E
Franceschi, MA
Freedman, SJ
Fujikawa, BK
Giachero, A
Gironi, L
Giuliani, A
Gorla, P
Gotti, C
Gutierrez, TD
Haller, EE
Han, K
Heeger, KM
Hennings-Yeomans, R
Hickerson, KP
Huang, HZ
Kadel, R
Keppel, G
Kolomensky, YG
Li, YL
Ligi, C
Lim, KE
Liu, X
Ma, YG
Maiano, C
Maino, M
Martinez, M
Maruyama, RH
Mei, Y
Morganti, S
Napolitano, T
Nisi, S
Nones, C
Norman, EB
Nucciotti, A
O'Donnell, T
Orio, F
Orlandi, D
Ouellet, JL
Pagliarone, CE
Pallavicini, M
Palmieri, V
Pattavina, L
Pavan, M
Pessina, G
Pettinacci, V
Piperno, G
Pira, C
Pirro, S
Pozzi, S
Previtali, E
Rosenfeld, C
Rusconi, C
Sala, E
Sangiorgio, S
Santone, D
Scielzo, ND
Sisti, M
Smith, AR
Taffarello, L
Tenconi, M
Terranova, F
Tian, WD
Tomei, C
Trentalange, S
Ventura, G
Vignati, M
Wang, BS
Wang, HW
Wielgus, L
Wilson, J
Winslow, LA
Wise, T
Woodcraft, A
Zanotti, L
Zarra, C
Zhang, GQ
Zhu, BX
Zucchelli, S
AF Moggi, N.
Artusa, D. R.
Avignone, F. T., III
Azzolini, O.
Balata, M.
Banks, T. I.
Bari, G.
Beeman, J.
Bellini, F.
Bersani, A.
Biassoni, M.
Brofferio, C.
Bucci, C.
Cai, X. Z.
Camacho, A.
Caminata, A.
Canonica, L.
Cao, X. G.
Capelli, S.
Cappelli, L.
Carbone, L.
Cardani, L.
Casali, N.
Cassina, L.
Chiesa, D.
Chott, N.
Clemenza, M.
Copello, S.
Cosmelli, C.
Cremonesi, O.
Creswick, R. J.
Cushman, J. S.
Dafinei, I.
Dally, A.
Datskov, V.
Dell'oro, S.
Deninno, M. M.
Domizio, S. Di
Di Vacri, M. L.
Drobizhev, A.
Ejzak, L.
Fang, D. Q.
Farach, H. A.
Faverzani, M.
Fernandes, G.
Ferri, E.
Ferroni, F.
Fiorini, E.
Franceschi, M. A.
Freedman, S. J.
Fujikawa, B. K.
Giachero, A.
Gironi, L.
Giuliani, A.
Gorla, P.
Gotti, C.
Gutierrez, T. D.
Haller, E. E.
Han, K.
Heeger, K. M.
Hennings-Yeomans, R.
Hickerson, K. P.
Huang, H. Z.
Kadel, R.
Keppel, G.
Kolomensky, Yu. G.
Li, Y. L.
Ligi, C.
Lim, K. E.
Liu, X.
Ma, Y. G.
Maiano, C.
Maino, M.
Martinez, M.
Maruyama, R. H.
Mei, Y.
Morganti, S.
Napolitano, T.
Nisi, S.
Nones, C.
Norman, E. B.
Nucciotti, A.
O'Donnell, T.
Orio, F.
Orlandi, D.
Ouellet, J. L.
Pagliarone, C. E.
Pallavicini, M.
Palmieri, V.
Pattavina, L.
Pavan, M.
Pessina, G.
Pettinacci, V.
Piperno, G.
Pira, C.
Pirro, S.
Pozzi, S.
Previtali, E.
Rosenfeld, C.
Rusconi, C.
Sala, E.
Sangiorgio, S.
Santone, D.
Scielzo, N. D.
Sisti, M.
Smith, A. R.
Taffarello, L.
Tenconi, M.
Terranova, F.
Tian, W. D.
Tomei, C.
Trentalange, S.
Ventura, G.
Vignati, M.
Wang, B. S.
Wang, H. W.
Wielgus, L.
Wilson, J.
Winslow, L. A.
Wise, T.
Woodcraft, A.
Zanotti, L.
Zarra, C.
Zhang, G. Q.
Zhu, B. X.
Zucchelli, S.
BE Fabbri, F
Giacomelli, P
TI Neutrinoless double-beta decay search with CUORE and CUORE-0 experiments
SO XLIV INTERNATIONAL SYMPOSIUM ON MULTIPARTICLE DYNAMICS (ISMD 2014)
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 44th International Symposium on Multiparticle Dynamics (ISMD)
CY SEP 08-12, 2014
CL Bologna, ITALY
SP Inst Nazl Fis Nucl, Univ Bologna, Alma Mater Studiorum, Assoc Franco Rimondi
ID CONTAMINATION; BOLOMETERS
AB The Cryogenic Underground Observatory for Rare Events (CUORE) is an upcoming experiment designed to search for the neutrinoless double-beta decays. Observation of the process would unambiguously establish that neutrinos are Majorana particles and provide information on their absolute mass scale hierarchy. CUORE is now under construction and will consist of an array of 988 TeO2 crystal bolometers operated at 10 mK, but the first tower (CUORE-0) is already taking data. The experimental techniques used will be presented as well as the preliminary CUORE-0 results. The current status of the full-mass experiment and its expected sensitivity will then be discussed.
C1 [Moggi, N.] Univ Bologna, Alma Mater Studiorum, Dipartimento Sci Qualita Vita, I-47921 Bologna, Italy.
[Moggi, N.; Bari, G.; Deninno, M. M.; Zucchelli, S.] INFN, Sez Bologna, I-40127 Bologna, Italy.
[Artusa, D. R.; Avignone, F. T., III; Chott, N.; Creswick, R. J.; Farach, H. A.; Wilson, J.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Artusa, D. R.; Balata, M.; Bucci, C.; Canonica, L.; Cappelli, L.; Casali, N.; Dell'oro, S.; Di Vacri, M. L.; Gorla, P.; Nisi, S.; Orlandi, D.; Pagliarone, C. E.; Pattavina, L.; Pirro, S.; Santone, D.; Zarra, C.] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67010 Coppito, Italy.
[Azzolini, O.; Camacho, A.; Keppel, G.; Palmieri, V.; Pira, C.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Padua, Italy.
[Banks, T. I.; Drobizhev, A.; Freedman, S. J.; Hennings-Yeomans, R.; Kolomensky, Yu. G.; O'Donnell, T.; Ouellet, J. L.; Rosenfeld, C.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Banks, T. I.; Freedman, S. J.; Fujikawa, B. K.; Hennings-Yeomans, R.; Mei, Y.; O'Donnell, T.; Ouellet, J. L.; Smith, A. R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Beeman, J.; Haller, E. E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Bellini, F.; Cardani, L.; Cosmelli, C.; Ferroni, F.; Piperno, G.; Vignati, M.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[Bellini, F.; Cardani, L.; Cosmelli, C.; Dafinei, I.; Ferroni, F.; Morganti, S.; Orio, F.; Pettinacci, V.; Piperno, G.; Tomei, C.; Vignati, M.] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy.
[Bersani, A.; Domizio, S. Di; Fernandes, G.; Pallavicini, M.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy.
[Biassoni, M.; Brofferio, C.; Capelli, S.; Carbone, L.; Cassina, L.; Chiesa, D.; Clemenza, M.; Faverzani, M.; Ferri, E.; Fiorini, E.; Giachero, A.; Gironi, L.; Gotti, C.; Maiano, C.; Maino, M.; Nucciotti, A.; Pavan, M.; Pozzi, S.; Sala, E.; Sisti, M.; Terranova, F.; Zanotti, L.] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy.
[Biassoni, M.; Brofferio, C.; Capelli, S.; Cassina, L.; Chiesa, D.; Clemenza, M.; Cremonesi, O.; Datskov, V.; Faverzani, M.; Ferri, E.; Fiorini, E.; Giachero, A.; Gironi, L.; Gotti, C.; Maiano, C.; Maino, M.; Nucciotti, A.; Pavan, M.; Pessina, G.; Pozzi, S.; Previtali, E.; Rusconi, C.; Sala, E.; Sisti, M.; Terranova, F.; Zanotti, L.] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20126 Milan, Italy.
[Cai, X. Z.; Cao, X. G.; Fang, D. Q.; Li, Y. L.; Ma, Y. G.; Tian, W. D.; Wang, H. W.; Zhang, G. Q.] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Caminata, A.; Copello, S.; Domizio, S. Di; Fernandes, G.; Pallavicini, M.] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy.
[Cappelli, L.; Pagliarone, C. E.] Univ Cassino & Lazio Meridionale, Dipartimento Ingn Civile & Meccan, I-03043 Cassino, Italy.
[Casali, N.; Di Vacri, M. L.; Santone, D.] Univ Aquila, Dipartimento Sci Fis & Chim, I-67100 Laquila, Italy.
[Cushman, J. S.; Han, K.; Heeger, K. M.; Lim, K. E.; Maruyama, R. H.; Wise, T.] Yale Univ, Dept Phys, New Haven, CT 06520 USA.
[Dally, A.; Ejzak, L.; Wielgus, L.; Wise, T.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
[Dell'oro, S.] Ist Nazl Fis Nucl, Gran Sasso Sci Inst, I-67100 Laquila, Italy.
[Franceschi, M. A.; Ligi, C.; Napolitano, T.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Rome, Italy.
[Giuliani, A.; Tenconi, M.] Ctr Spectrometrie Nucl & Spectrometrie Masse, F-91405 Orsay, France.
[Gutierrez, T. D.] Calif Polytech State Univ San Luis Obispo, Dept Phys, San Luis Obispo, CA 93407 USA.
[Haller, E. E.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Hickerson, K. P.; Huang, H. Z.; Liu, X.; Trentalange, S.; Winslow, L. A.; Zhu, B. X.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Kadel, R.; Kolomensky, Yu. G.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA.
[Martinez, M.] Univ Zaragoza, Lab Fis Nucl & Astroparticulas, E-50009 Zaragoza, Spain.
[Nones, C.] CEA Saclay, Serv Phys Particules, F-91191 Gif Sur Yvette, France.
[Norman, E. B.; Sangiorgio, S.; Scielzo, N. D.; Wang, B. S.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Norman, E. B.; Wang, B. S.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
[Taffarello, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Ventura, G.] Univ Firenze, Dipartimento Fis, I-50125 Florence, Italy.
[Ventura, G.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy.
[Woodcraft, A.] Univ Edinburgh, Inst Astron, SUPA, Edinburgh EH9 3HJ, Midlothian, Scotland.
[Zucchelli, S.] Univ Bologna, Alma Mater Studiorum, Dipartimento Fis & Astron, I-40127 Bologna, Italy.
RP Moggi, N (reprint author), Univ Bologna, Alma Mater Studiorum, Dipartimento Sci Qualita Vita, I-47921 Bologna, Italy.
EM niccolo.moggi@bo.infn.it
RI Pozzi, Stefano/Q-1075-2016; capelli, silvia/G-5168-2012; Ma,
Yu-Gang/M-8122-2013; Casali, Nicola/C-9475-2017; Gironi,
Luca/P-2860-2016; Di Domizio, Sergio/L-6378-2014; Pallavicini,
Marco/G-5500-2012; Martinez, Maria/K-4827-2012; Nucciotti,
Angelo/I-8888-2012; Bellini, Fabio/D-1055-2009; Giachero,
Andrea/I-1081-2013; Chiesa, Davide/H-7240-2014; Vignati,
Marco/H-1684-2013; Faverzani, Marco/K-3865-2016; Ferri,
Elena/L-8531-2014; Ligi, Carlo/M-4007-2016; Pattavina, Luca/I-7498-2015
OI Pessina, Gianluigi Ezio/0000-0003-3700-9757; Bersani,
Andrea/0000-0003-3276-5713; azzolini, oscar/0000-0003-3951-0537; Keppel,
Giorgio/0000-0003-4579-3342; Clemenza, Massimiliano/0000-0002-8064-8936;
pavan, maura/0000-0002-9723-7834; Gotti, Claudio/0000-0003-2501-9608;
Pozzi, Stefano/0000-0003-2986-1990; capelli, silvia/0000-0002-0300-2752;
Ma, Yu-Gang/0000-0002-0233-9900; Casali, Nicola/0000-0003-3669-8247;
Canonica, Lucia/0000-0001-8734-206X; Gutierrez,
Thomas/0000-0002-0330-6414; Camacho, Andrea/0000-0002-1916-0130; Pira,
Cristian/0000-0002-5893-1567; Cushman, Jeremy/0000-0002-8491-3725;
Gironi, Luca/0000-0003-2019-0967; Di Domizio,
Sergio/0000-0003-2863-5895; Pallavicini, Marco/0000-0001-7309-3023;
Martinez, Maria/0000-0002-9043-4691; Nucciotti,
Angelo/0000-0002-8458-1556; Bellini, Fabio/0000-0002-2936-660X;
Giachero, Andrea/0000-0003-0493-695X; Chiesa,
Davide/0000-0003-1978-1727; Vignati, Marco/0000-0002-8945-1128;
Faverzani, Marco/0000-0001-8119-2953; Ferri, Elena/0000-0003-1425-3669;
Ligi, Carlo/0000-0001-7943-7704; Pattavina, Luca/0000-0003-4192-849X
NR 31
TC 0
Z9 0
U1 4
U2 13
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 90
AR 03004
DI 10.1051/epjconf/20159003004
PG 8
WC Physics, Multidisciplinary; Physics, Particles & Fields
SC Physics
GA BD1SO
UT WOS:000358323100014
ER
PT S
AU Wong, CY
Wilk, G
Cirto, LJL
Tsallis, C
AF Wong, Cheuk-Yin
Wilk, Grzegorz
Cirto, Leonardo J. L.
Tsallis, Constantino
BE Fabbri, F
Giacomelli, P
TI Possible Implication of a Single Nonextensive p(T) Distribution for
Hadron Production in High-Energy pp Collisions
SO XLIV INTERNATIONAL SYMPOSIUM ON MULTIPARTICLE DYNAMICS (ISMD 2014)
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 44th International Symposium on Multiparticle Dynamics (ISMD)
CY SEP 08-12, 2014
CL Bologna, ITALY
SP Inst Nazl Fis Nucl, Univ Bologna, Alma Mater Studiorum, Assoc Franco Rimondi
ID LARGE TRANSVERSE-MOMENTUM; MULTIPARTON SEMIHARD INTERACTIONS;
PARTICLE-PRODUCTION; CROSS-SECTION; JET FRAGMENTATION; EIKONAL DIAGRAMS;
QCD CASCADES; MONTE-CARLO; MODEL; SPECTRA
AB Multiparticle production processes in pp collisions at the central rapidity region are usually considered to be divided into independent "soft" and "hard" components. The first is described by exponential (thermal-like) transverse momentum spectra in the low-p(T) region with a scale parameter T associated with the temperature of the hadronizing system. The second is governed by a power-like distributions of transverse momenta with power index n at high-p(T) associated with the hard scattering between partons. We show that the hard-scattering integral can be approximated as a nonextensive distribution of a quasi-power-law containing a scale parameter T and a power index n =1/(q-1), where q is the nonextensivity parameter. We demonstrate that the whole region of transverse momenta presently measurable at LHC experiments at central rapidity (in which the observed cross sections varies by 14 orders of magnitude down to the low p(T) region) can be adequately described by a single nonextensive distribution. These results suggest the dominance of the hard-scattering hadron-production process and the approximate validity of a "no-hair" statistical-mechanical description of the p(T) spectra for the whole p(T) region at central rapidity for pp collisions at high-energies.
C1 [Wong, Cheuk-Yin] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Wilk, Grzegorz; Tsallis, Constantino] Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
[Cirto, Leonardo J. L.] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, RJ, Brazil.
[Cirto, Leonardo J. L.] Natl Inst Sci & Technol Complex Syst, BR-22290180 Rio De Janeiro, RJ, Brazil.
[Tsallis, Constantino] Santa Fe Inst, Santa Fe, NM 87501 USA.
RP Wong, CY (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
EM wongc@ornl.gov; wilk@fuw.edu.pl; cirto@cbpf.br; tsallis@cbpf.br
NR 123
TC 10
Z9 10
U1 1
U2 6
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2015
VL 90
AR 04002
DI 10.1051/epjconf/20159004002
PG 10
WC Physics, Multidisciplinary; Physics, Particles & Fields
SC Physics
GA BD1SO
UT WOS:000358323100016
ER
PT S
AU Acevedo, I
Kleine, RK
Kraus, D
Mascarenas, D
AF Acevedo, Isaiah
Kleine, R. Kaleb
Kraus, Dustan
Mascarenas, David
BE Liao, WH
Park, G
Erturk, A
TI Multimodal Sensing Strategies for Detecting Transparent Barriers Indoors
from a Mobile Platform
SO ACTIVE AND PASSIVE SMART STRUCTURES AND INTEGRATED SYSTEMS 2015
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Active and Passive Smart Structures and Integrated Systems
CY MAR 09-12, 2015
CL San Diego, CA
SP SPIE, Amer Soc Mech Engineer
DE Computer Vision; Sensor Network; Infrared Sensing; Distance Detection;
Induced Reflection Detection Transparent Barrier
AB There is currently an interest in developing mobile sensing platforms that fly indoors. The primary goal for these platforms is to be able to successfully navigate a building under various lighting and environmental conditions. There are numerous research challenges associated with this goal, one of which is the platform's ability to detect and identify the presence of transparent barriers. Transparent barriers could include windows, glass partitions, or skylights. For example, in order to successfully navigate inside of a structure, these platforms will need to sense if a space contains a transparent barrier and whether or not this space can be traversed. This project's focus has been developing a multimodal sensing system that can successfully identify such transparent barriers under various lighting conditions while aboard a mobile platform. Along with detecting transparent barriers, this sensing platform is capable of distinguishing between reflective, opaque, and transparent barriers. It will be critical for this system to be able to identify transparent barriers in real-time in order for the navigation system to maneuver accordingly. The properties associated with the interaction between various frequencies of light and transparent materials were one of the techniques leveraged to solve this problem.
C1 [Acevedo, Isaiah] New Mexico Inst Min & Technol, Dept Mech Engn, Socorro, NM 87081 USA.
[Kleine, R. Kaleb] Rose Hulman Inst Technol, Dept Elect Engn, Terre Haute, IN 47803 USA.
[Kraus, Dustan] Brigham Young Univ, Dept Mech Engn, Provo, UT 84602 USA.
[Mascarenas, David] Los Alamos Natl Lab, Engn Inst, Los Alamos, NM 87545 USA.
RP Acevedo, I (reprint author), New Mexico Inst Min & Technol, Dept Mech Engn, Socorro, NM 87081 USA.
NR 3
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-534-6
J9 PROC SPIE
PY 2015
VL 9431
AR 94310V
DI 10.1117/12.2084092
PG 10
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Optics
SC Engineering; Materials Science; Optics
GA BD0SF
UT WOS:000357640200026
ER
PT S
AU Masoumi, M
Wang, Y
Liu, MZ
Tewolde, M
Longtin, J
AF Masoumi, Masoud
Wang, Ya
Liu, Mingzhao
Tewolde, Mahder
Longtin, Jon
BE Liao, WH
Park, G
Erturk, A
TI Multifunctional magneto-plasmonic nanotransducers for advanced
theranostics: synthesis, modeling and experiment
SO ACTIVE AND PASSIVE SMART STRUCTURES AND INTEGRATED SYSTEMS 2015
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Active and Passive Smart Structures and Integrated Systems
CY MAR 09-12, 2015
CL San Diego, CA
SP SPIE, American Soc Mech Engineer
DE Theranostic nanomedicine; SPIO; cancer treatment; UV-spectroscopy;
photothermal experiment
ID NANOPARTICLES; CANCER; NANOSHELLS; SIZE
AB In this work, nano-transducers with a superparamagnetic iron oxide (SPIO) core have been synthesized by preparation of precursor gold nanoseeds loaded on SPIO-embedded silica to form a gold nanoshell. The goal is for such nano-tansducers to be used in theranostics to detect brain tumors by using MRI imaging and then assist in their treatment by using photothermal ablation. The iron oxide core provides for the use of a magnetic-field to guide the particles to the target (tumor) site. The gold nanoshell can be then readily heated using incident light and/or an alternating magnetic-field. After synthesis of nano-transducer samples, Transmission Electron Microscopy was employed to analyze the formation of each layer. Then UV spectroscopy experiments were conducted to examine the light absorbance of the synthesized samples. The UV-visible absorption spectra shows a clear surface plasmon resonance (SPR) band around 530 nm, verifying the presence of gold coating nanoshells. Finally photothermal experiments using a high-power laser beam with a wavelength of 527 nm were performed to heat the samples. It was found that the temperature reaches 45 degrees C in 12 minutes.
C1 [Masoumi, Masoud; Wang, Ya; Tewolde, Mahder; Longtin, Jon] SUNY Stony Brook, Dept Mech Engn, Stony Brook, NY 11790 USA.
[Liu, Mingzhao] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Masoumi, M (reprint author), SUNY Stony Brook, Dept Mech Engn, Stony Brook, NY 11790 USA.
EM ya.s.wang@stonybrook.edu
NR 11
TC 0
Z9 0
U1 1
U2 8
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-534-6
J9 PROC SPIE
PY 2015
VL 9431
AR 94311X
DI 10.1117/12.2187102
PG 9
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Optics
SC Engineering; Materials Science; Optics
GA BD0SF
UT WOS:000357640200053
ER
PT S
AU Giaz, A
Fossati, V
Hull, G
Camera, F
Blasi, N
Brambilla, S
Ceruti, S
Cherepy, N
Million, B
Pellegri, L
Riboldi, S
AF Giaz, A.
Fossati, V.
Hull, G.
Camera, F.
Blasi, N.
Brambilla, S.
Ceruti, S.
Cherepy, N.
Million, B.
Pellegri, L.
Riboldi, S.
BE Roberts, O
Hanlon, L
McBreen, S
TI Characterization of new scintillators: SrI2:Eu, CeBr3, GYGAG:Ce and
CLYC:Ce
SO APPLICATIONS OF NOVEL SCINTILLATORS FOR RESEARCH AND INDUSTRY (ANSRI
2015)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT Workshop on Applications of Novel Scintillators for Research and
Industry (ANSRI)
CY JAN 12-14, 2015
CL Univ Coll Dublin, Dublin, IRELAND
SP Sci Fdn Ireland, Scionix, Inst Phys, Nucl Phys, Inst Phys, Nucl Ind, Inst Phys, Mat & Characterisat, ORTEC, AMETEK
HO Univ Coll Dublin
AB We measured the performance of a 2 '' x2 '' tapered cylindrical SrI2:Eu, a 2 '' x 3 '' cylindrical CeBr3, a 2 '' x 0.3" cylindrical GYGAG:Ce. The gamma-ray energy resolution was measured up to 9 MeV. A scan along three axes of each scintillator was performed using a collimated source of Cs-137. The signals of the detectors were also digitized and compared. We tested two 1 '' x 1 '' cylindrical CLYC crystals. One was enriched with Li-6 at 95% while the other was enriched with 99% of Li-7. The response of the two detectors to gamma rays, thermal and fast neutrons was measured. The PSD performances have been tested with a different types of PMTs.
C1 [Giaz, A.; Camera, F.; Blasi, N.; Brambilla, S.; Ceruti, S.; Million, B.; Pellegri, L.; Riboldi, S.] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Mi, Italy.
[Fossati, V.; Camera, F.; Ceruti, S.; Riboldi, S.] Univ Milan, I-20133 Milan, Mi, Italy.
[Hull, G.] Inst Phys Nucl Orsay, F-91406 Orsay, France.
[Cherepy, N.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Giaz, A (reprint author), Ist Nazl Fis Nucl, Sez Milano, Via Celoria 16, I-20133 Milan, Mi, Italy.
EM agnese.giaz@mi.infn.it
RI Cherepy, Nerine/F-6176-2013
OI Cherepy, Nerine/0000-0001-8561-923X
NR 8
TC 2
Z9 2
U1 1
U2 14
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 620
AR 012003
DI 10.1088/1742-6596/620/1/012003
PG 5
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BD1FT
UT WOS:000357993200003
ER
PT J
AU Mishra, U
Riley, WJ
AF Mishra, U.
Riley, W. J.
TI Scaling impacts on environmental controls and spatial heterogeneity of
soil organic carbon stocks
SO BIOGEOSCIENCES
LA English
DT Article
ID MOISTURE FIELDS; VARIABILITY; LANDSCAPE; RESOLUTION; SIMULATIONS;
DYNAMICS; MODELS; PATTERNS; STORAGE; SCALES
AB The spatial heterogeneity of land surfaces affects energy, moisture, and greenhouse gas exchanges with the atmosphere. However, representing the heterogeneity of terrestrial hydrological and biogeochemical processes in Earth system models (ESMs) remains a critical scientific challenge. We report the impact of spatial scaling on environmental controls, spatial structure, and statistical properties of soil organic carbon (SOC) stocks across the US state of Alaska. We used soil profile observations and environmental factors such as topography, climate, land cover types, and surficial geology to predict the SOC stocks at a 50m spatial scale. These spatially heterogeneous estimates provide a data set with reasonable fidelity to the observations at a sufficiently high resolution to examine the environmental controls on the spatial structure of SOC stocks. We upscaled both the predicted SOC stocks and environmental variables from finer to coarser spatial scales (s = 100, 200, and 500m and 1, 2, 5, and 10 km) and generated various statistical properties of SOC stock estimates. We found different environmental factors to be statistically significant predictors at different spatial scales. Only elevation, temperature, potential evapotranspiration, and scrub land cover types were significant predictors at all scales. The strengths of control (the median value of geographically weighted regression coefficients) of these four environmental variables on SOC stocks decreased with increasing scale and were accurately represented using mathematical functions (R-2 = 0.83-0.97). The spatial structure of SOC stocks across Alaska changed with spatial scale. Although the variance (sill) and unstructured variability (nugget) of the calculated variograms of SOC stocks decreased exponentially with scale, the correlation length (range) remained relatively constant across scale. The variance of predicted SOC stocks decreased with spatial scale over the range of 50m to similar to 500 m, and remained constant beyond this scale. The fitted exponential function accounted for 98% of variability in the variance of SOC stocks. We found moderately accurate linear relationships between mean and higher-order moments of predicted SOC stocks (R-2 similar to 0.55-0.63). Current ESMs operate at coarse spatial scales (50100 km), and are therefore unable to represent environmental controllers and spatial heterogeneity of high-latitude SOC stocks consistent with observations. We conclude that improved understanding of the scaling behavior of environmental controls and statistical properties of SOC stocks could improve ESM land model benchmarking and perhaps allow representation of spatial heterogeneity of biogeochemistry at scales finer than those currently resolved by ESMs.
C1 [Mishra, U.] Argonne Natl Lab, Div Environm Sci, Argonne, IL 60439 USA.
[Riley, W. J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Earth Sci Div, Berkeley, CA 94720 USA.
RP Mishra, U (reprint author), Argonne Natl Lab, Div Environm Sci, 9700 South Cass Ave,240-6143, Argonne, IL 60439 USA.
EM umishra@anl.gov
RI Riley, William/D-3345-2015
OI Riley, William/0000-0002-4615-2304
FU Office of Science, Office of Biological and Environmental Research of
the US Department of Energy under Argonne National Laboratory
[DE-AC02-06CH11357]; Regional and Global Climate Modeling (RGCM)
Program; Lawrence Berkeley National Laboratory as part of the RGCM
program [DE-AC02-05CH11231]; Next-Generation Ecosystem Experiment Arctic
project
FX This research was supported by the Director, Office of Science, Office
of Biological and Environmental Research of the US Department of Energy
under Argonne National Laboratory contract no. DE-AC02-06CH11357, and
the Regional and Global Climate Modeling (RGCM) Program. Contributions
of W. J. Riley were supported under Lawrence Berkeley National
Laboratory contract no. DE-AC02-05CH11231 as part of the RGCM program
and the Next-Generation Ecosystem Experiment Arctic project. Thanks to
G. Michaelson and C. L. Ping for providing access to some of the SOC
profile data.
NR 68
TC 2
Z9 2
U1 3
U2 14
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1726-4170
EI 1726-4189
J9 BIOGEOSCIENCES
JI Biogeosciences
PY 2015
VL 12
IS 13
BP 3993
EP 4004
DI 10.5194/bg-12-3993-2015
PG 12
WC Ecology; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA CM8UY
UT WOS:000357978900004
ER
PT S
AU Alvine, KJ
Bernacki, BE
Bennett, WD
Schemer-Kohrn, A
Suter, JD
AF Alvine, Kyle J.
Bernacki, Bruce E.
Bennett, Wendy D.
Schemer-Kohrn, Alan
Suter, Jonathan D.
BE Fountain, AW
TI Subwavelength films for standoff radiation dosimetry
SO CHEMICAL, BIOLOGICAL, RADIOLOGICAL, NUCLEAR, AND EXPLOSIVES (CBRNE)
SENSING XVI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 16th Meeting of the Chemical, Biological, Radiological, Nuclear, and
Explosives (CBRNE) Sensing part of the SPIE Defense, Security plus
Sensing Symposium
CY APR 21-23, 2015
CL Baltimore, MD
SP SPIE
DE radiation dosimetry; nanotechnology; standoff radiation sensing;
subwavelength structures
ID LIGHT
AB We present optical subwavelength nanostructure architecture suitable for standoff radiation dosimetry with remote optical readout in the visible or infrared spectral regions. To achieve this, films of subwavelength structures are fabricated over several square inches via the creation of a 2D non-close packed (NCP) array template of radiation-sensitive polymeric nanoparticles, followed by magnetron sputtering of a metallic coating to form a 2D array of separated hemispherical nanoscale metallic shells. The nanoshells are highly reflective at resonance in the visible or infrared depending on design. These structures and their behavior are based on the open ring resonator (ORR) architecture and have their analog in resonant inductive-capacitive (LC) circuits, which display a resonance wavelength that is inversely proportional to the square root of the product of the inductance and capacitance. Therefore, any modification of the nanostructure material properties due to radiation alters the inductive or capacitive behavior of the subwavelength features, which in turn changes their optical properties resulting in a shift in the optical resonance. This shift in resonance may be remotely interrogated actively using either laser illumination or passively by hyperspectral or multispectral sensing with broadband illumination. These structures may be designed to be either anisotropic or isotropic, which can also offer polarization-sensitive interrogation. We present experimental measurements of a radiation induced shift in the optical resonance of a subwavelength film after exposure to an absorbed dose of gamma radiation from 2 Mrad up to 62 Mrad demonstrating the effect. Interestingly the resonance shift is non-monotonic for this material system and possible radiation damage mechanisms to the nanoparticles are discussed.
C1 [Alvine, Kyle J.; Bernacki, Bruce E.; Bennett, Wendy D.; Schemer-Kohrn, Alan; Suter, Jonathan D.] Pacific NW Natl Lab, Richland, WA 99338 USA.
RP Alvine, KJ (reprint author), Pacific NW Natl Lab, Richland, WA 99338 USA.
EM kyle.alvine@pnnl.gov
OI Suter, Jonathan/0000-0001-5709-6988
NR 8
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-571-1
J9 PROC SPIE
PY 2015
VL 9455
AR 945503
DI 10.1117/12.2177140
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0WG
UT WOS:000357744700002
ER
PT S
AU Brauer, CS
Johnson, TJ
Myers, TL
Su, YF
Blake, TA
Forland, BM
AF Brauer, Carolyn S.
Johnson, Timothy J.
Myers, Tanya L.
Su, Yin-Fong
Blake, Thomas A.
Forland, Brenda M.
BE Fountain, AW
TI Effects of Sample Preparation on the Infrared Reflectance Spectra of
Powders
SO CHEMICAL, BIOLOGICAL, RADIOLOGICAL, NUCLEAR, AND EXPLOSIVES (CBRNE)
SENSING XVI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 16th Meeting of the Chemical, Biological, Radiological, Nuclear, and
Explosives (CBRNE) Sensing part of the SPIE Defense, Security plus
Sensing Symposium
CY APR 21-23, 2015
CL Baltimore, MD
SP SPIE
DE Directional hemispherical reflectance; FTIR; powder; particle size;
optical constants; integrating sphere; infrared
ID MU-M; MINERALS; SURFACES; ROCK
AB While reflectance spectroscopy is a useful tool for identifying molecular compounds, laboratory measurement of solid (particularly powder) samples often is confounded by sample preparation methods. For example, both the packing density and surface roughness can have an effect on the quantitative reflectance spectra of powdered samples. Recent efforts in our group have focused on developing standard methods for measuring reflectance spectra that accounts for sample preparation, as well as other factors such as particle size and provenance. In this work, the effect of preparation method on sample reflectivity was investigated by measuring the directional-hemispherical spectra of samples that were hand-loaded as well as pressed into pellets using an integrating sphere attached to a Fourier transform infrared spectrometer. The results show that the methods used to prepare the sample can have a substantial effect on the measured reflectance spectra, as do other factors such as particle size.
C1 [Brauer, Carolyn S.; Johnson, Timothy J.; Myers, Tanya L.; Su, Yin-Fong; Blake, Thomas A.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Forland, Brenda M.] Red Rocks Community Coll, Lakewood, CO 80228 USA.
RP Brauer, CS (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM Carolyn.Brauer@pnnl.gov
NR 21
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-571-1
J9 PROC SPIE
PY 2015
VL 9455
AR 945505
DI 10.1117/12.2179736
PG 6
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0WG
UT WOS:000357744700004
ER
PT S
AU Johnson, TJ
Sweet, LE
Meier, DE
Mausolf, EJ
Kim, E
Weck, PF
Buck, EC
McNamara, BK
AF Johnson, Timothy J.
Sweet, Lucas E.
Meier, David E.
Mausolf, Edward J.
Kim, Eunja
Weck, Philippe F.
Buck, Edgar C.
McNamara, Bruce K.
BE Fountain, AW
TI Dehydration of Uranyl Nitrate Hexahydrate to the Trihydrate under
Ambient Conditions as Observed via Dynamic Infrared Reflectance
Spectroscopy
SO CHEMICAL, BIOLOGICAL, RADIOLOGICAL, NUCLEAR, AND EXPLOSIVES (CBRNE)
SENSING XVI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 16th Meeting of the Chemical, Biological, Radiological, Nuclear, and
Explosives (CBRNE) Sensing part of the SPIE Defense, Security plus
Sensing Symposium
CY APR 21-23, 2015
CL Baltimore, MD
SP SPIE
DE uranyl nitrate; uranyl nitrate hexahydrate; infrared spectroscopy;
microscopy; reflectance spectroscopy; reststrahlen bands; density
functional theory
ID NEUTRON DIFFRACTION; SPECTRA; COMPLEXES; BACILLUS; SALTS; CELLS
AB Uranyl nitrate is a key species in the nuclear fuel cycle, but is known to exist in different states of hydration, including the hexahydrate [UO2(NO3)(2)(H2O)(6)] (UNH) and the trihydrate [UO2(NO3)(2)(H2O)(3)] (UNT) forms. Their stabilities depend on both relative humidity and temperature. Both phases have previously been studied by infrared transmission spectroscopy, but the data were limited by both instrumental resolution and the ability to prepare the samples as pellets without desiccating it. We report time-resolved infrared (IR) measurements using an integrating sphere that allow us to observe the transformation from the hexahydrate to the trihydrate simply by flowing dry nitrogen gas over the sample. Hexahydrate samples were prepared and confirmed via known XRD patterns, then measured in reflectance mode. The hexahydrate has a distinct uranyl asymmetric stretch band at 949.0 cm(-1) that shifts to shorter wavelengths and broadens as the sample dehydrates and recrystallizes to the trihydrate, first as a blue edge shoulder but ultimately resulting in a doublet band with reflectance peaks at 966 and 957 cm(-1). The data are consistent with transformation from UNH to UNT since UNT has two non-equivalent UO22+ sites. The dehydration of UO2(NO3)(2)(H2O)(6) to UO2(NO3)(2)(H2O)(3) is both a morphological and structural change that has the lustrous lime green crystals changing to the dull greenish yellow of the trihydrate. Crystal structures and phase transformation were confirmed theoretically using DFT calculations and experimentally via microscopy methods. Both methods showed a transformation with two distinct sites for the uranyl cation in the trihydrate, as opposed to a single crystallographic site in the hexahydrate.
C1 [Johnson, Timothy J.; Sweet, Lucas E.; Meier, David E.; Mausolf, Edward J.; Buck, Edgar C.; McNamara, Bruce K.] Pacific NW Natl Lab, Richland, WA 99354 USA.
[Kim, Eunja] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
[Weck, Philippe F.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Johnson, TJ (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99354 USA.
EM timothy.johnson@pnnl.gov
RI Buck, Edgar/N-7820-2013;
OI Buck, Edgar/0000-0001-5101-9084; , Philippe/0000-0002-7610-2893
NR 29
TC 0
Z9 0
U1 1
U2 8
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-571-1
J9 PROC SPIE
PY 2015
VL 9455
AR 945504
DI 10.1117/12.2179704
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0WG
UT WOS:000357744700003
ER
PT S
AU Piotrowski, JS
Simpkins, SW
Li, SC
Deshpande, R
McIlwain, SJ
Ong, IM
Myers, CL
Boone, C
Andersen, RJ
AF Piotrowski, Jeff S.
Simpkins, Scott W.
Li, Sheena C.
Deshpande, Raamesh
McIlwain, Sean J.
Ong, Irene M.
Myers, Chad L.
Boone, Charlie
Andersen, Raymond J.
BE Hempel, JE
Williams, CH
Hong, CC
TI Chemical Genomic Profiling via Barcode Sequencing to Predict Compound
Mode of Action
SO CHEMICAL BIOLOGY: METHODS AND PROTOCOLS
SE Methods in Molecular Biology
LA English
DT Article; Book Chapter
DE Chemical genomics; Barcode sequencing; Functional genomics; Yeast
deletion collection
ID YEAST; SET
AB Chemical genomics is an unbiased, whole-cell approach to characterizing novel compounds to determine mode of action and cellular target. Our version of this technique is built upon barcoded deletion mutants of Saccharomyces cerevisiae and has been adapted to a high-throughput methodology using next-generation sequencing. Here we describe the steps to generate a chemical genomic profile from a compound of interest, and how to use this information to predict molecular mechanism and targets of bioactive compounds.
C1 [Piotrowski, Jeff S.; McIlwain, Sean J.; Ong, Irene M.] Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA.
[Simpkins, Scott W.; Deshpande, Raamesh; Myers, Chad L.] Univ Minnesota Twin Cities, Dept Comp Sci & Engn, Minneapolis, MN USA.
[Li, Sheena C.] RIKEN Ctr Sustainable Resource Sci, Wako, Saitama, Japan.
[Boone, Charlie] Univ Toronto, Terrence Donnelly Ctr Cellular & Biomol Res, Toronto, ON, Canada.
[Andersen, Raymond J.] Univ British Columbia, Dept Chem, Vancouver, BC, Canada.
RP Piotrowski, JS (reprint author), Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA.
OI Simpkins, Scott/0000-0002-5997-2838
FU Canadian Institutes of Health Research [MOP-57830]; NHGRI NIH HHS [R01
HG005084, 1R01HG005084-01A1, R01 HG005853, R01HG005853]; NIGMS NIH HHS
[1R01GM104975-01, 5T32GM008347-22, R01 GM104975, T32 GM008347]
NR 14
TC 6
Z9 6
U1 3
U2 10
PU HUMANA PRESS INC
PI TOTOWA
PA 999 RIVERVIEW DR, STE 208, TOTOWA, NJ 07512-1165 USA
SN 1064-3745
BN 978-1-4939-2269-7; 978-1-4939-2268-0
J9 METHODS MOL BIOL
JI Methods Mol. Biol.
PY 2015
VL 1263
BP 299
EP 318
DI 10.1007/978-1-4939-2269-7_23
D2 10.1007/978-1-4939-2269-7
PG 20
WC Biochemical Research Methods; Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA BD0OR
UT WOS:000357509900024
PM 25618354
ER
PT J
AU Lu, QQ
Zhang, J
Peng, P
Zhang, GH
Huang, ZL
Yi, H
Miller, JT
Lei, AW
AF Lu, Qingquan
Zhang, Jian
Peng, Pan
Zhang, Guanghui
Huang, Zhiliang
Yi, Hong
Miller, Jeffrey T.
Lei, Aiwen
TI Operando X-ray absorption and EPR evidence for a single electron redox
process in copper catalysis
SO CHEMICAL SCIENCE
LA English
DT Article
ID COUPLING REACTIONS; COMPLEXES; PROTEINS; IRON; POLYMERIZATION;
ACTIVATION; REACTIVITY; REDUCTION; CHEMISTRY; INSIGHTS
AB An unprecedented single electron redox process in copper catalysis is confirmed using operando X-ray absorption and EPR spectroscopies. The oxidation state of the copper species in the interaction between Cu(II) and a sulfinic acid at room temperature, and the accurate characterization of the formed Cu(I) are clearly shown using operando X-ray absorption and EPR evidence. Further investigation of anion effects on Cu(II) discloses that bromine ions can dramatically increase the rate of the redox process. Moreover, it is proven that the sulfinic acids are converted into sulfonyl radicals, which can be trapped by 2-arylacrylic acids and various valuable beta-keto sulfones are synthesized with good to excellent yields under mild conditions.
C1 [Lu, Qingquan; Zhang, Jian; Peng, Pan; Zhang, Guanghui; Huang, Zhiliang; Yi, Hong; Lei, Aiwen] Wuhan Univ, IAS, Coll Chem & Mol Sci, Wuhan 430072, Hubei, Peoples R China.
[Lei, Aiwen] Jiangxi Normal Univ, Natl Res Ctr Carbohydrate Synth, Nanchang 330022, Jiangxi, Peoples R China.
[Zhang, Guanghui; Huang, Zhiliang; Miller, Jeffrey T.; Lei, Aiwen] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Miller, Jeffrey T.] Purdue Univ, Dept Chem Engn, W Lafayette, IN 47907 USA.
RP Lei, AW (reprint author), Wuhan Univ, IAS, Coll Chem & Mol Sci, Wuhan 430072, Hubei, Peoples R China.
EM aiwenlei@whu.edu.cn
RI ID, MRCAT/G-7586-2011; Zhang, Guanghui/C-4747-2008
OI Zhang, Guanghui/0000-0002-5854-6909
FU 973 Program [2012CB725302]; National Natural Science Foundation of China
[21390400, 21025206, 21272180, 21302148]; Research Fund for the Doctoral
Program of Higher Education of China [20120141130002]; Ministry of
Science and Technology of China [2012YQ120060]; U. S. Department of
Energy, Office of Science, Office of Basic Energy Sciences
[DE-AC02-06CH11357]; Department of Energy; MRCAT member institutions
FX This work was supported by the 973 Program (2012CB725302), the National
Natural Science Foundation of China (21390400, 21025206, 21272180, and
21302148), the Research Fund for the Doctoral Program of Higher
Education of China (20120141130002) and the Ministry of Science and
Technology of China (2012YQ120060). The Program of Introducing Talents
of Discipline to Universities of China (111 Program) is also
appreciated. Use of the Advanced Photon Source was supported by the U.
S. Department of Energy, Office of Science, Office of Basic Energy
Sciences, under contract no. DE-AC02-06CH11357. MRCAT operations are
supported by the Department of Energy and the MRCAT member institutions.
NR 34
TC 17
Z9 17
U1 7
U2 32
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2041-6520
EI 2041-6539
J9 CHEM SCI
JI Chem. Sci.
PY 2015
VL 6
IS 8
BP 4851
EP 4854
DI 10.1039/c5sc00807g
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CM8EU
UT WOS:000357931700056
ER
PT J
AU Schneider, AM
Lu, LY
Manley, EF
Zheng, TY
Sharapov, V
Xu, T
Marks, TJ
Chen, LX
Yu, LP
AF Schneider, Alexander M.
Lu, Luyao
Manley, Eric F.
Zheng, Tianyue
Sharapov, Valerii
Xu, Tao
Marks, Tobin J.
Chen, Lin X.
Yu, Luping
TI Wide bandgap OPV polymers based on pyridinonedithiophene unit with
efficiency > 5%
SO CHEMICAL SCIENCE
LA English
DT Article
ID HETEROJUNCTION SOLAR-CELLS; POWER-CONVERSION EFFICIENCY; BULK
HETEROJUNCTION; ORGANIC PHOTOVOLTAICS; CHARGE RECOMBINATION; FILL
FACTORS; COPOLYMERS; PERFORMANCE; TANDEM; TRANSPORT
AB We report the properties of a new series of wide band gap photovoltaic polymers based on the N-alkyl 2-pyridone dithiophene (PDT) unit. These polymers are effective bulk heterojunction solar cell materials when blended with phenyl-C-71-butyric acid methyl ester (PC71BM). They achieve power conversion efficiencies (up to 5.33%) high for polymers having such large bandgaps, ca. 2.0 eV (optical) and 2.5 eV (electrochemical). Grazing incidence wide-angle X-ray scattering (GIWAXS) reveals strong correlations between pi-pi stacking distance and regularity, polymer backbone planarity, optical absorption maximum energy, and photovoltaic efficiency.
C1 [Schneider, Alexander M.; Lu, Luyao; Zheng, Tianyue; Sharapov, Valerii; Xu, Tao; Yu, Luping] Univ Chicago, Dept Chem, Chicago, IL 60637 USA.
[Schneider, Alexander M.; Lu, Luyao; Zheng, Tianyue; Sharapov, Valerii; Xu, Tao; Yu, Luping] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
[Manley, Eric F.; Marks, Tobin J.; Chen, Lin X.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Manley, Eric F.; Marks, Tobin J.; Chen, Lin X.] Northwestern Univ, Argonne Northwestern Solar Energy Res Ctr, Evanston, IL 60208 USA.
[Manley, Eric F.; Chen, Lin X.] Argonne Natl Lab, Chem Sci & Engn Div, Lemont, IL 60439 USA.
RP Chen, LX (reprint author), Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA.
EM l-chen@northwestern.edu; lupingyu@uchicago.edu
RI Lu, Luyao/J-6553-2015; Zheng, Tianyue/P-2674-2016
FU U. S. National Science Foundation [NSF CHE-1229089, DMR-1263006]; Air
Force Office of Scientific Research [FA9550-12-1-0061]; NSF MRSEC
program at the University of Chicago [DMR-0820054]; NIST ChiMad program;
DOE via the ANSER Center, an Energy Frontier Research Center - U. S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
[DE-SC0001059]; U. S. DOE [DE-AC02-06CH11357]
FX This work is supported by the U. S. National Science Foundation (grants
NSF CHE-1229089, and DMR-1263006), the Air Force Office of Scientific
Research (grant FA9550-12-1-0061), the NSF MRSEC program at the
University of Chicago (grant DMR-0820054) and the NIST ChiMad program.
T. Y. Zheng was supported by the DOE via 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 for the synthesis of monomer Ar3, Use of the Advanced
Photon Source, an Office of Science User Facility operated for the U. S.
Department of Energy (DOE) Office of Science by Argonne National
Laboratory, was supported by the U. S. DOE under Contract no.
DE-AC02-06CH11357.
NR 51
TC 12
Z9 12
U1 10
U2 48
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2041-6520
EI 2041-6539
J9 CHEM SCI
JI Chem. Sci.
PY 2015
VL 6
IS 8
BP 4860
EP 4866
DI 10.1039/c5sc01427a
PG 7
WC Chemistry, Multidisciplinary
SC Chemistry
GA CM8EU
UT WOS:000357931700058
ER
PT J
AU Jurss, JW
Khnayzer, RS
Panetier, JA
El Roz, KA
Nichols, EM
Head-Gordon, M
Long, JR
Castellano, FN
Chang, CJ
AF Jurss, Jonah W.
Khnayzer, Rony S.
Panetier, Julien A.
El Roz, Karim A.
Nichols, Eva M.
Head-Gordon, Martin
Long, Jeffrey R.
Castellano, Felix N.
Chang, Christopher J.
TI Bioinspired design of redox-active ligands for multielectron catalysis:
effects of positioning pyrazine reservoirs on cobalt for electro- and
photocatalytic generation of hydrogen from water
SO CHEMICAL SCIENCE
LA English
DT Article
ID HYDROPHILIC PHOSPHATRIAZAADAMANTANE LIGAND; AROMATIC
NITROGEN-HETEROCYCLES; TRANSITION-METAL-COMPLEXES; DENSITY-FUNCTIONAL
THEORY; MOLYBDENUM-OXO CATALYST; ELECTROCATALYTIC REDUCTION;
GALACTOSE-OXIDASE; ARTIFICIAL PHOTOSYNTHESIS; LOW OVERPOTENTIALS; IRON
HYDROGENASE
AB Mononuclear metalloenzymes in nature can function in cooperation with precisely positioned redox-active organic cofactors in order to carry out multielectron catalysis. Inspired by the finely tuned redox management of these bioinorganic systems, we present the design, synthesis, and experimental and theoretical characterization of a homologous series of cobalt complexes bearing redox-active pyrazines. These donor moieties are locked into key positions within a pentadentate ligand scaffold in order to evaluate the effects of positioning redox non-innocent ligands on hydrogen evolution catalysis. Both metal-and ligand-centered redox features are observed in organic as well as aqueous solutions over a range of pH values, and comparison with analogs bearing redox-inactive zinc(II) allows for assignments of ligand-based redox events. Varying the geometric placement of redox non-innocent pyrazine donors on isostructural pentadentate ligand platforms results in marked effects on observed cobalt-catalyzed proton reduction activity. Electrocatalytic hydrogen evolution from weak acids in acetonitrile solution, under diffusion-limited conditions, reveals that the pyrazine donor of axial isomer 1-Co behaves as an unproductive electron sink, resulting in high overpotentials for proton reduction, whereas the equatorial pyrazine isomer complex 2-Co is significantly more active for hydrogen generation at lower voltages. Addition of a second equatorial pyrazine in complex 3-Co further minimizes overpotentials required for catalysis. The equatorial derivative 2-Co is also superior to its axial 1-Co congener for electrocatalytic and visible-light photocatalytic hydrogen generation in biologically relevant, neutral pH aqueous media. Density functional theory calculations (B3LYP-D2) indicate that the first reduction of catalyst isomers 1-Co, 2-Co, and 3-Co is largely metal-centered while the second reduction occurs at pyrazine. Taken together, the data establish that proper positioning of non-innocent pyrazine ligands on a single cobalt center is indeed critical for promoting efficient hydrogen catalysis in aqueous media, akin to optimally positioned redoxactive cofactors in metalloenzymes. In a broader sense, these findings highlight the significance of electronic structure considerations in the design of effective electron-hole reservoirs for multielectron transformations.
C1 [Jurss, Jonah W.; Panetier, Julien A.; Nichols, Eva M.; Head-Gordon, Martin; Long, Jeffrey R.; Chang, Christopher J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Chang, Christopher J.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Jurss, Jonah W.] Univ Mississippi, Dept Chem & Biochem, University, MS 38677 USA.
[Panetier, Julien A.; Long, Jeffrey R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Jurss, Jonah W.; Nichols, Eva M.; Head-Gordon, Martin; Chang, Christopher J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Khnayzer, Rony S.; El Roz, Karim A.; Castellano, Felix N.] N Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA.
[Khnayzer, Rony S.] Lebanese Amer Univ, Dept Nat Sci, Beirut 11022801, Chouran, Lebanon.
[Chang, Christopher J.] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
RP Head-Gordon, M (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM mhg@cchem.berkeley.edu; jrlong@berkeley.edu; fncastel@ncsu.edu;
chrischang@berkeley.edu
OI Panetier, Julien/0000-0003-4905-8396; Castellano,
Felix/0000-0001-7546-8618
FU U.S. Department of Energy/Lawrence Berkeley National Laboratory Grant
[101528-002]; National Science Foundation [CHE-1012487]; Office of
Science of the U.S. Department of Energy [DE-SC0004993]; National
Science Foundation Graduate Research Fellowship Program (NSF GRFP); NSF
[CHE-1111900]
FX Catalyst development, characterization, and electrochemical measurements
were supported by U.S. Department of Energy/Lawrence Berkeley National
Laboratory Grant 101528-002 (J.W.J., C.J.C.). Photocatalytic experiments
(R.S.K, K.E., F.N.C.) were carried out at NCSU under support from the
National Science Foundation (CHE-1012487). Density functional
calculations (J.A.P., M.H.-G.) were performed at the Joint Center for
Artificial Photosynthesis, a DOE Innovation Hub, supported through the
Office of Science of the U.S. Department of Energy under Award Number
DE-SC0004993. E.M.N. gratefully acknowledges support from the National
Science Foundation Graduate Research Fellowship Program (NSF GRFP). The
contributions of J.R.L. were supported by NSF grant CHE-1111900. C.J.C.
is an Investigator with the Howard Hughes Medical Institute.
NR 154
TC 17
Z9 17
U1 15
U2 58
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2041-6520
EI 2041-6539
J9 CHEM SCI
JI Chem. Sci.
PY 2015
VL 6
IS 8
BP 4954
EP 4972
DI 10.1039/c5sc01414j
PG 19
WC Chemistry, Multidisciplinary
SC Chemistry
GA CM8EU
UT WOS:000357931700071
ER
PT J
AU Weck, PF
Kim, E
Jove-Colon, CF
AF Weck, Philippe F.
Kim, Eunja
Jove-Colon, Carlos F.
TI Relationship between crystal structure and thermo-mechanical properties
of kaolinite clay: beyond standard density functional theory
SO DALTON TRANSACTIONS
LA English
DT Article
ID GENERALIZED GRADIENT APPROXIMATION; BRILLOUIN-ZONE INTEGRATIONS; HIGHLY
ORDERED KAOLINITE; AB-INITIO; RAMAN-SPECTROSCOPY; ELASTIC PROPERTIES; 77
K; 1ST-PRINCIPLES; DICKITE; ANISOTROPY
AB The structural, mechanical and thermodynamic properties of 1 : 1 layered dioctahedral kaolinite clay, with ideal Al2Si2O5(OH)(4) stoichiometry, were investigated using density functional theory corrected for dispersion interactions (DFT-D2). The bulk moduli of 56.2 and 56.0 GPa predicted at 298 K using the Vinet and Birch-Murnaghan equations of state, respectively, are in good agreement with the recent experimental value of 59.7 GPa reported for well-crystallized samples. The isobaric heat capacity computed for uniaxial deformation of kaolinite along the stacking direction reproduces calorimetric data within 0.7-3.0% from room temperature up to its thermal stability limit.
C1 [Weck, Philippe F.; Jove-Colon, Carlos F.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Kim, Eunja] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
RP Weck, PF (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM pfweck@sandia.gov
OI , Philippe/0000-0002-7610-2893
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]; Used Fuel Disposition Campaign of the U.S.
Department of Energy's Office of Nuclear Energy
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. Funding for
this work was provided by the Used Fuel Disposition Campaign of the U.S.
Department of Energy's Office of Nuclear Energy.
NR 74
TC 1
Z9 1
U1 5
U2 23
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 28
BP 12550
EP 12560
DI 10.1039/c5dt00590f
PG 11
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CM7TO
UT WOS:000357899600017
PM 25761796
ER
PT J
AU Weck, PF
Kim, E
AF Weck, Philippe F.
Kim, Eunja
TI Thermodynamics of technetium: reconciling theory and experiment using
density functional perturbation analysis
SO DALTON TRANSACTIONS
LA English
DT Article
ID GENERALIZED GRADIENT APPROXIMATION; BRILLOUIN-ZONE INTEGRATIONS;
HEAT-CAPACITIES; TC; SUPERCONDUCTIVITY; METALS; TEMPERATURE; CHEMISTRY;
ALLOY; 1ST-PRINCIPLES
AB The structure, lattice dynamics and thermodynamic properties of bulk technetium were investigated within the framework of density functional theory. The phonon density of states spectrum computed with density functional perturbation theory closely matches inelastic coherent neutron scattering measurements. The thermal properties of technetium were derived from phonon frequencies calculated within the quasi-harmonic approximation (QHA), which introduces a volume dependence of phonon frequencies as a part of the anharmonic effect. The predicted thermal expansion and isobaric heat capacity of technetium are in excellent agreement with available experimental data for temperatures up to similar to 1600 K.
C1 [Weck, Philippe F.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Kim, Eunja] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
RP Weck, PF (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM pfweck@sandia.gov
OI , Philippe/0000-0002-7610-2893
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]; DOE Office of Nuclear Energy's Nuclear Energy
University Program
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. This research
was performed using funding received from the DOE Office of Nuclear
Energy's Nuclear Energy University Program. We thank Dr Joseph A. Rard
(Lawrence Livermore National Laboratory) for stimulating discussions.
NR 67
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PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 28
BP 12735
EP 12742
DI 10.1039/c5dt01639h
PG 8
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CM7TO
UT WOS:000357899600036
PM 26087249
ER
PT S
AU Love, J
Amai, W
Blada, T
Little, C
Neely, J
Buerger, S
AF Love, Joshua
Amai, Wendy
Blada, Timothy
Little, Charles
Neely, Jason
Buerger, Stephen
BE Pham, T
Kolodny, MA
TI The Sandia Architecture for Heterogeneous Unmanned System Control
(SAHUC)
SO GROUND/AIR MULTISENSOR INTEROPERABILITY, INTEGRATION, AND NETWORKING FOR
PERSISTENT ISR VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Ground/Air Multisensor Interoperability, Integration, and
Networking for Persistent ISR VI
CY APR 20-22, 2015
CL Baltimore, MD
SP SPIE
DE SAHUC; physical security; heterogeneous; distributed; unmanned; ISR;
architecture; hierarchical control
AB The Sandia Architecture for Heterogeneous Unmanned System Control (SAHUC) was produced as part of a three year internally funded project performed by Sandia's Intelligent Systems, Robotics, and Cybernetics group (ISRC). ISRC created SAHUC to demonstrate how teams of Unmanned Systems (UMS) can be used for small-unit tactical operations incorporated into the protection of high-consequence sites. Advances in Unmanned Systems have provided crucial autonomy capabilities that can be leveraged and adapted to physical security applications. SAHUC applies these capabilities to provide a distributed ISR network for site security. This network can be rapidly re-tasked to respond to changing security conditions.
The SAHUC architecture contains multiple levels of control. At the highest level a human operator inputs objectives for the network to accomplish. The heterogeneous unmanned systems automatically decide which agents can perform which objectives and then decide the best global assignment. The assignment algorithm is based upon coarse metrics that can be produced quickly. Responsiveness was deemed more crucial than optimality for responding to time-critical physical security threats. Lower levels of control take the assigned objective, perform online path planning, execute the desired plan, and stream data (LIDAR, video, GPS) back for display on the user interface. SAHUC also retains an override capability, allowing the human operator to modify all autonomous decisions whenever necessary.
SAHUC has been implemented and tested with UAVs, UGVs, and GPS-tagged blue/red force actors. The final demonstration illustrated how a small fleet, commanded by a remote human operator, could aid in securing a facility and responding to an intruder
C1 [Love, Joshua; Amai, Wendy; Blada, Timothy; Little, Charles; Neely, Jason; Buerger, Stephen] Sandia Natl Labs, Intelligent Syst Robot & Cybernet Grp, Albuquerque, NM 87185 USA.
RP Love, J (reprint author), Sandia Natl Labs, Intelligent Syst Robot & Cybernet Grp, POB 5800 MS 1010, Albuquerque, NM 87185 USA.
EM sbuerge@sandia.gov
NR 12
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-580-3
J9 PROC SPIE
PY 2015
VL 9464
AR 94640E
DI 10.1117/12.2179421
PG 10
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BD1GR
UT WOS:000358003400008
ER
PT B
AU Sreedhar, I
Motkuri, RK
Raghavan, KV
AF Sreedhar, I.
Motkuri, Radha Kishan
Raghavan, K. V.
BE Raghavan, KV
Reddy, BM
TI MICROENVIRONMENT MANAGEMENT IN HETEROGENEOUS CATALYSIS
SO INDUSTRIAL CATALYSIS AND SEPARATIONS: INNOVATIONS FOR PROCESS
INTENSIFICATION
LA English
DT Article; Book Chapter
DE Microenvironment; Heterogeneous catalysis; Oxidation reactions; Organic
nitrations; Para-selectivity in nitration; Synthesis of Macrocycles;
Calix[4]pyrroles; MCM-41; Micelle template silica
ID TOLUENE
C1 [Sreedhar, I.] BITS Pilani Hyderabad Campus, Dept Chem Engn, Hyderabad 500078, Andhra Pradesh, India.
[Motkuri, Radha Kishan] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
[Raghavan, K. V.] Indian Inst Chem Technol, CSIR, React Engn Lab, Hyderabad 500007, Andhra Pradesh, India.
RP Sreedhar, I (reprint author), BITS Pilani Hyderabad Campus, Dept Chem Engn, Hyderabad 500078, Andhra Pradesh, India.
EM radhakishan.motkuri@pnnl.gov; kondapuramiict@yahoo.com
NR 24
TC 1
Z9 1
U1 0
U2 0
PU APPLE ACAD PRESS INC
PI OAKVILLE
PA 3333 MISTWELL CRESCENT, OAKVILLE, ON L6L 0A2, CANADA
BN 978-1-4822-3426-8; 978-1-926895-96-3
PY 2015
BP 43
EP 57
PG 15
WC Chemistry, Physical; Engineering, Chemical
SC Chemistry; Engineering
GA BC8SC
UT WOS:000356055300004
ER
PT B
AU Motkuri, RK
Liu, J
Fernandez, CA
Nune, SK
Thallapally, P
Mcgrail, BP
AF Motkuri, Radha Kishan
Liu, Jian
Fernandez, Carlos A.
Nune, Satish K.
Thallapally, Praveen
Mcgrail, B. Pete
BE Raghavan, KV
Reddy, BM
TI METAL ORGANIC FRAMEWORKS-SYNTHESIS AND APPLICATIONS
SO INDUSTRIAL CATALYSIS AND SEPARATIONS: INNOVATIONS FOR PROCESS
INTENSIFICATION
LA English
DT Article; Book Chapter
DE Adsorption chiller; CO2 capture; Gas capture and separation;
Heterogeneous catalysis; Metal-organic frameworks; Oil spill cleanup;
Sensing applications, sensors; Water sorption
ID POROUS COORDINATION POLYMERS; OIL-SPILL CLEANUP; CARBON-DIOXIDE CAPTURE;
HYDROGEN STORAGE; MOLECULAR SIMULATION; CHROMIUM(III) CARBOXYLATE;
ELECTROCHEMICAL SYNTHESIS; SEPARATION APPLICATIONS; STRUCTURAL
TRANSITION; COVALENT MODIFICATION
C1 [Motkuri, Radha Kishan; Liu, Jian; Nune, Satish K.; Mcgrail, B. Pete] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
[Fernandez, Carlos A.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Thallapally, Praveen] Pacific NW Natl Lab, Fundamental & Computat Sci, Richland, WA 99352 USA.
RP Motkuri, RK (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, 902 Battelle Blvd, Richland, WA 99352 USA.
EM radhakishan.motkuri@pnnl.gov
NR 151
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U1 0
U2 2
PU APPLE ACAD PRESS INC
PI OAKVILLE
PA 3333 MISTWELL CRESCENT, OAKVILLE, ON L6L 0A2, CANADA
BN 978-1-4822-3426-8; 978-1-926895-96-3
PY 2015
BP 61
EP 103
PG 43
WC Chemistry, Physical; Engineering, Chemical
SC Chemistry; Engineering
GA BC8SC
UT WOS:000356055300005
ER
PT J
AU Huang, JH
Su, L
Kowalski, JA
Barton, JL
Ferrandon, M
Burrell, AK
Brushett, FR
Zhang, L
AF Huang, Jinhua
Su, Liang
Kowalski, Jeffrey A.
Barton, John L.
Ferrandon, Magali
Burrell, Anthony K.
Brushett, Fikile R.
Zhang, Lu
TI A subtractive approach to molecular engineering of
dimethoxybenzene-based redox materials for non-aqueous flow batteries
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID LITHIUM-ION BATTERIES; OVERCHARGE PROTECTION; ENERGY-STORAGE; SHUTTLE;
PERFORMANCE; STABILITY; ELECTRODE
AB The development of new high capacity redox activematerials is key to realizing the potential of non-aqueous redox flow batteries (RFBs). In this paper, a series of substituted 1,4-dimethoxybenzene based redox active molecules have been developed via a subtractive design approach. Five molecules have been proposed and developed by removing or reducing the bulky substituent groups of DBBB (2,5-di-tert-butyl-1,4-bis(2-methoxyethoxy) benzene), a successful overcharge protection material for lithium-ion batteries. Of these derivatives, 2,3-dimethyl-1,4-dimethoxybenzene (23DDB) and 2,5-dimethyl-1,4-dimethoxybenzene (25DDB) are particularly promising as they demonstrate favorable electrochemical characteristics at gravimetric capacities (161 mA h g(-1)) that approach the stability limit of chemically reversible dimethoxybenzene based structures. Diffusivity, solubility, and galvanostatic cycling results indicate that both 23DDB and 25DDB molecules have promise for non-aqueous RFBs.
C1 [Huang, Jinhua; Su, Liang; Kowalski, Jeffrey A.; Barton, John L.; Ferrandon, Magali; Burrell, Anthony K.; Brushett, Fikile R.; Zhang, Lu] Argonne Natl Lab, Joint Ctr Energy Storage Res, Lemont, IL 60439 USA.
[Huang, Jinhua; Ferrandon, Magali; Burrell, Anthony K.; Zhang, Lu] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Su, Liang; Kowalski, Jeffrey A.; Barton, John L.; Brushett, Fikile R.] MIT, Dept Chem Engn, Cambridge, MA 02139 USA.
RP Brushett, FR (reprint author), Argonne Natl Lab, Joint Ctr Energy Storage Res, 9700 S Cass Ave, Lemont, IL 60439 USA.
EM brushett@mit.edu; luzhang@anl.gov
FU Joint Center for Energy Storage Research, an Energy Innovation Hub -
U.S. Department of Energy, Office of Science, Basic Energy Sciences;
Argonne, a U.S. Department of Energy Office of Science Laboratory
[DE-AC02-06CH11357]; DOE-EERE Office of Vehicle Technologies
FX This work was supported as part of the Joint Center for Energy Storage
Research, an Energy Innovation Hub funded by the U.S. Department of
Energy, Office of Science, Basic Energy Sciences. The submitted
manuscript has been created by UChicago Argonne, LLC, Operator of
Argonne National Laboratory ("Argonne"). Argonne, a U.S. Department of
Energy Office of Science Laboratory, is operated under Contract no.
DE-AC02-06CH11357. DBBB, also referred to as ANL-2, was synthesized by
Krzysztof Pupek and Trevor Dzwiniel at Argonne's Materials Engineering
Research Facility and was funded by DOE-EERE Office of Vehicle
Technologies. J.H. and L.S. contributed equally to this work. We thank
Lei Cheng (ANL) for stimulating discussion.
NR 22
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U2 21
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 29
BP 14971
EP 14976
DI 10.1039/c5ta02380g
PG 6
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CN0UN
UT WOS:000358129400004
ER
PT J
AU Zhao, ZH
Hao, SM
Hao, P
Sang, YH
Manivannan, A
Wu, NQ
Liu, H
AF Zhao, Zhenhuan
Hao, Shimeng
Hao, Pin
Sang, Yuanhua
Manivannan, Ayyakkannu
Wu, Nianqiang
Liu, Hong
TI Lignosulphonate-cellulose derived porous activated carbon for
supercapacitor electrode
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID PARTIALLY GRAPHITIC STRUCTURE; MESOPOROUS CARBON; ENERGY-STORAGE;
ELECTROCHEMICAL CAPACITORS; COMPOSITE ELECTRODES; PERFORMANCE;
MICROSPHERES; FOAMS; WATER; NANOPARTICLES
AB The notion of environmental protection and renewable sources for energy conversion and storage has become particularly important nowadays. In this research, a meso-microporous carbon was prepared by the combination of a template method and chemical activation with earth abundant cellulose and lignosulphonate as the sources. The as-synthesized meso-microporous carbon contained mesopores generated by regeneration of cellulose with the assistance of a silica template, and micropores created by chemical activation of carbon. Such a unique porous structure makes the as-synthesized meso-microporous carbon the ideal electrode active material for energy storage. The two-electrode symmetric supercapacitors built using the meso-microporous carbon electrodes show a specific capacitance of 286 F g(-1) at a current density of 0.25 A g(-1) in aqueous electrolyte. More importantly, the symmetric supercapacitor achieves a high energy density of 13 W h kg(-1) while at a high power density of 27 kW kg(-1). It is demonstrated that using renewable natural sources for the manufacturing of porous carbon with high performance for energy storage can be an effective way to lower the cost of a supercapacitor.
C1 [Zhao, Zhenhuan; Hao, Pin; Sang, Yuanhua; Liu, Hong] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China.
[Zhao, Zhenhuan; Hao, Shimeng; Wu, Nianqiang] W Virginia Univ, Dept Mech & Aerosp Engn, Morgantown, WV 26505 USA.
[Manivannan, Ayyakkannu] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
RP Liu, H (reprint author), Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China.
EM Nick.Wu@mail.wvu.edu; hongliu@sdu.edu.cn
RI Wu, Nianqiang/B-9798-2015
OI Wu, Nianqiang/0000-0002-8888-2444
FU URS grant under the U. S. DOE/ENTL contract [4000.5.682.998.001B];
National Natural Science Foundation of China [51372142]; Innovation
Research Group [IRG: 51321091]; "100 Talents Program" of the Chinese
Academy of Sciences
FX This work is partially supported by an URS grant under the U. S.
DOE/ENTL contract (4000.5.682.998.001B). The use of the WVU Shared
Facility is appreciated. The authors are grateful for the financial
support by the National Natural Science Foundation of China (Grant no.
51372142), Innovation Research Group (IRG: 51321091) and the "100
Talents Program" of the Chinese Academy of Sciences.
NR 48
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U1 9
U2 49
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 29
BP 15049
EP 15056
DI 10.1039/c5ta02770e
PG 8
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CN0UN
UT WOS:000358129400016
ER
PT J
AU Ranasingha, OK
Wang, CJ
Ohodnicki, PR
Lekse, JW
Lewis, JP
Matranga, C
AF Ranasingha, Oshadha K.
Wang, Congjun
Ohodnicki, Paul R., Jr.
Lekse, Jonathan W.
Lewis, James P.
Matranga, Christopher
TI Synthesis, characterization, and photocatalytic activity of Au-ZnO
nanopyramids
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID ONE-POT SYNTHESIS; RIETVELD REFINEMENT; VISIBLE-LIGHT; NANOPARTICLE
COMPOSITES; NANOSTRUCTURES; NANOCOMPOSITES; PARTICLES; GROWTH;
DEGRADATION; STRAIN
AB Nanocrystalline Au-ZnO heterostructures were synthesized using a wet-chemical process where single-crystalline ZnO grows along the [0001] direction on top of polycrystalline Au seeds. High resolution transmission electron microscopy finds a 3.5% expansion of the ZnO (002) plane at the heterostructure interface. Rietveld analysis of X-ray diffraction patterns from ZnO and Au-ZnO powders find that the crystallographic microstrain in the metal oxide is 0.047% and 0.146%, respectively, illustrating that the crystallographic expansion at the heterostructure interface is detectable by bulk characterization techniques. Broad-band photo-degradation studies with methylene blue find that the Au-ZnO heterostructures decompose the dye 6 times faster than pure ZnO. Wavelength-dependent photodegradation studies illustrate direct gap excitation of the ZnO component of the heterostructure is required to initiate dye decomposition. The mechanistic details leading to this photocatalytic activity are discussed.
C1 [Ranasingha, Oshadha K.; Lewis, James P.] W Virginia Univ, Dept Phys & Astron, Morgantown, WV 26506 USA.
[Ranasingha, Oshadha K.; Wang, Congjun; Ohodnicki, Paul R., Jr.; Lekse, Jonathan W.; Lewis, James P.; Matranga, Christopher] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
[Wang, Congjun; Lekse, Jonathan W.] URS Corp, South Pk, PA 15129 USA.
RP Matranga, C (reprint author), US DOE, Natl Energy Technol Lab, 626 Cochrans Mill Rd, Pittsburgh, PA 15236 USA.
EM oranasin@mix.wvu.edu; christopher.matranga@netl.doe.gov
FU RES [DE-FE0004000]; agency of the United States Government
FX This technical effort was performed under RES contract DE-FE0004000.
This report was prepared as an account of work sponsored by an agency of
the United States Government. The U.S. Government is authorized to
reproduce and distribute reprints for Government purposes
notwithstanding any copyright notation hereon.
NR 34
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U1 3
U2 35
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 29
BP 15141
EP 15147
DI 10.1039/c5ta01344e
PG 7
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CN0UN
UT WOS:000358129400027
ER
PT J
AU Khatiwada, D
Venkatesan, S
Chen, QL
Chen, JH
Adhikari, N
Dubey, A
Mitul, A
Mohammed, L
Qiao, QQ
AF Khatiwada, Devendra
Venkatesan, Swaminathan
Chen, Qiliang
Chen, Jihua
Adhikari, Nirmal
Dubey, Ashish
Mitul, Abu Farzan
Mohammed, Lal
Qiao, Qiquan
TI Improved performance by morphology control via fullerenes in
PBDT-TBT-alkoBT based organic solar cells
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID DOMAIN PURITY; POLYMER; EFFICIENCY; RECOMBINATION; SOLVENT
AB In this work, we report improved performance by controlling morphology using different fullerene derivatives in poly{2-octyldodecyloxy-benzo[1,2-b; 3,4-b]dithiophene-alt-5,6-bis(dodecyloxy)-4,7-di(thieno[3,2-b]thiophen-2-yl)-benzo[c][1,2,5] thiadiazole} (PBDT-TBT-alkoBT) based organic solar cells. PC60BM and PC70BM fullerenes were used to investigate the characteristic changes in morphology and device performance. Fullerenes affect device efficiency by changing the active layer morphology. PC70BM with broader absorption than PC60BM resulted in reduced device performance which was elucidated by the intermixed granular morphology separating each larger grain in the PC70BM/polymer composite layer which created a higher density of traps. However after adding additive 1,8-diiodooctane (DIO), a fibrous morphology was observed due to the reduced solubility of the polymer and increased solubility of PC70BM in chloroform. The fibrous morphology improved charge transport leading to an increase in overall device performance. Atomic force microscopy (AFM), photo-induced charge extraction by linearly increasing voltage (photo-CELIV), and Kelvin probe force microscopy (KPFM) were used to investigate the nanoscale morphology of the active layer with different fullerene derivatives. For the PC60BM based active layer, AFM images revealed a dense fibrous morphology and more distinct fibrous morphology was observed by adding DIO. The PC70BM based active layer only exhibited an intermixed granular morphology instead of a fibrous morphology observed in the PC60BM based active layer. However, addition of DIO into the PC70BM based active layer led to fibrous morphology. When additive DIO was not used, a wider distribution of surface potential was observed for PC70BM than the PC60BM based active layer by KPFM measurements, indicating that polymer and fullerene domains are separated. When DIO was used, a narrower distribution of surface potential for both PC70BM and PC60BM based active layers was observed. Photo-CELIV experiments showed larger extracted charge carrier density and mobility in the PC70BM/DIO film.
C1 [Khatiwada, Devendra; Venkatesan, Swaminathan; Chen, Qiliang; Adhikari, Nirmal; Dubey, Ashish; Mitul, Abu Farzan; Mohammed, Lal; Qiao, Qiquan] S Dakota State Univ, Dept Elect Engn & Comp Sci, Ctr Adv Photovolta, Brookings, SD 57007 USA.
[Chen, Jihua] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Qiao, QQ (reprint author), S Dakota State Univ, Dept Elect Engn & Comp Sci, Ctr Adv Photovolta, Brookings, SD 57007 USA.
EM qiquan.qiao@sdstate.edu
RI Chen, Jihua/F-1417-2011; Venkatesan, Swaminathan/D-8809-2014
OI Chen, Jihua/0000-0001-6879-5936; Venkatesan,
Swaminathan/0000-0003-2213-0255
FU NASA EPSCoR [NNX13AD31A]; NSF CAREER [ECCS-0950731]; NSF MRI [1229577]
FX This research was benefited from the grants including NASA EPSCoR
(NNX13AD31A), NSF CAREER (ECCS-0950731), and NSF MRI (grant no.
1229577). TEM (J.C.) experiments were conducted at the Center for
Nanophase Materials Sciences, which is a DOE Office of Science User
Facility.
NR 33
TC 8
Z9 8
U1 4
U2 19
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 29
BP 15307
EP 15313
DI 10.1039/c5ta02709h
PG 7
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CN0UN
UT WOS:000358129400047
ER
PT J
AU Liu, Q
Li, Z
Okasinski, JS
Ren, Y
Sun, YG
AF Liu, Qi
Li, Zheng
Okasinski, John S.
Ren, Yang
Sun, Yugang
TI In situ high-energy synchrotron X-ray diffraction revealing
precipitation reaction kinetics of silver ions with mixed halide ions
SO JOURNAL OF MATERIALS CHEMISTRY C
LA English
DT Article
ID AG-AT-AGCL; VISIBLE-LIGHT; PHOTOCATALYTIC ACTIVITY; PLASMONIC
PHOTOCATALYST; HYDROGEN GENERATION; NANOWIRES; EFFICIENT; NANOPARTICLES;
CONVERSION; FIBERS
AB Precipitation of silver ions simultaneously with chloride and bromide ions in ethylene glycol at a mild temperature (e.g., 60 degrees C) has been successfully demonstrated for the synthesis of silver chlorobromide (AgClxBr1-x, 0 < x < 1) nanoparticles, which is realized by injecting a AgNO3 solution into a solution containing both halogen ions. The injection rate of the AgNO3 solution has been determined to be critical for controlling the uniformity of AgClxBr1-x nanoparticles. Time-resolved in situ high-energy synchrotron X-ray diffraction has been applied, for the first time, to quantitatively monitor the reaction kinetics of nanocrystal formation. The real-time results shed light on the fact that the injection rate of AgNO3 solution significantly influences the nucleation and growth processes, and thus the quality of resulting AgClxBr1-x nanoparticles. Specifically, fast injection enables the complete addition of AgNO3 solution to the reaction solution before the nucleation process starts, leading to a good separation of nucleation and growth and thus the formation of uniform AgClxBr1-x nanocubes with well-defined composition and narrow size distribution. By contrast, slow injection results in a continuous addition of AgNO3 solution to the reaction solution even after nucleation starts, leading to continuous multiple nucleation/growth processes and thus the formation of AgClxBr1-x nanoparticles with broad dimensional and morphological distributions.
C1 [Liu, Qi; Li, Zheng; Sun, Yugang] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Okasinski, John S.; Ren, Yang] Argonne Natl Lab, Xray Sci Div, Adv Photon Source, Argonne, IL 60439 USA.
RP Sun, YG (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 South Cass Ave, Argonne, IL 60439 USA.
EM ygsun@anl.gov
RI Sun, Yugang /A-3683-2010; Li, Zheng/L-1355-2016
OI Sun, Yugang /0000-0001-6351-6977; Li, Zheng/0000-0001-5281-8101
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]; DOE Office of Science by Argonne National
Laboratory [DE-AC02-06CH11357]
FX The use of the Center for Nanoscale Materials was granted by the U.S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Contract No. DE-AC02-06CH11357. This research used
resources of the Advanced Photon Source, a U.S. Department of Energy
(DOE) Office of Science User Facility operated for the DOE Office of
Science by Argonne National Laboratory under Contract No.
DE-AC02-06CH11357.
NR 35
TC 2
Z9 2
U1 3
U2 14
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7526
EI 2050-7534
J9 J MATER CHEM C
JI J. Mater. Chem. C
PY 2015
VL 3
IS 28
BP 7492
EP 7498
DI 10.1039/c5tc01306b
PG 7
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA CM6NK
UT WOS:000357805300030
ER
PT J
AU Karimi, S
Martz, H
Cosman, P
AF Karimi, Seemeen
Martz, Harry
Cosman, Pamela
TI Metal artifact reduction for CT-based luggage screening
SO JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY
LA English
DT Article
DE Metal artifacts; metal artifact reduction; computed tomography; luggage
screening; constrained optimization
ID STATISTICAL IMAGE-RECONSTRUCTION; RAY COMPUTED-TOMOGRAPHY; MULTISLICE
HELICAL CT; DUAL-ENERGY CT; EMISSION-TOMOGRAPHY; SEGMENTATION;
MINIMIZATION; SUPPRESSION; ALGORITHM; SELECTION
AB BACKGROUND: In aviation security, checked luggage is screened by computed tomography scanning. Metal objects in the bags create artifacts that degrade image quality. Though there exist metal artifact reduction (MAR) methods mainly in medical imaging literature, they require knowledge of the materials in the scan, or are outlier rejection methods.
OBJECTIVE: To improve and evaluate a MAR method we previously introduced, that does not require knowledge of the materials in the scan, and gives good results on data with large quantities and different kinds of metal.
METHODS: We describe in detail an optimization which de-emphasizes metal projections and has a constraint for beam hardening and scatter. This method isolates and reduces artifacts in an intermediate image, which is then fed to a previously published sinogram replacement method. We evaluate the algorithm for luggage data containing multiple and large metal objects. We define measures of artifact reduction, and compare this method against others in MAR literature.
RESULTS: Metal artifacts were reduced in our test images, even for multiple and large metal objects, without much loss of structure or resolution.
CONCLUSION: Our MAR method outperforms the methods with which we compared it. Our approach does not make assumptions about image content, nor does it discard metal projections.
C1 [Karimi, Seemeen; Cosman, Pamela] Univ Calif San Diego, San Diego, CA 92093 USA.
[Martz, Harry] Lawrence Livermore Natl Lab, San Francisco, CA USA.
RP Karimi, S (reprint author), Univ Calif San Diego, San Diego, CA 92093 USA.
EM seemeen.karimi@gmail.com
FU Lawrence Livermore National Laboratory; Science and Technology
Directorate of the Department of Homeland Security
FX This work was supported by Lawrence Livermore National Laboratory and
the Science and Technology Directorate of the Department of Homeland
Security. Scanner data were supplied by the ALERT group at Northeastern
University. The authors thank P. Jin for forward projection software,
Dr. T. Partridge for information about the Imatron scanner, and Drs. X.
Jiang and C. Crawford for helpful reviews of this work.
NR 63
TC 1
Z9 1
U1 0
U2 7
PU IOS PRESS
PI AMSTERDAM
PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS
SN 0895-3996
EI 1095-9114
J9 J X-RAY SCI TECHNOL
JI J. X-Ray Sci. Technol.
PY 2015
VL 23
IS 4
BP 435
EP 451
DI 10.3233/XST-150499
PG 17
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA CM3TV
UT WOS:000357608400003
PM 26410655
ER
PT J
AU Bora, M
Shusteff, M
AF Bora, M.
Shusteff, M.
TI Efficient coupling of acoustic modes in microfluidic channel devices
SO LAB ON A CHIP
LA English
DT Article
ID ULTRASONIC PARTICLE-CONCENTRATION; MANIPULATION; SEPARATION; SYSTEMS;
WAVES; CHIPS; FLOW; CELL
AB This work introduces a new numerical simulation approach to acoustic microfluidic chip design based on coupled-resonator theory. A simplified acoustofluidic device operating in the transverse elastic mode is investigated and optimized for maximal pressure standing wave amplitude. This design approach provides insights into the symmetry and frequency characteristics of acoustic chip resonances that cannot be obtained from analysis based on wave propagation arguments. The new approach reveals that optimal performance requires spatial symmetry-matching and frequency-matching of the full device's elastic resonance to the channel's acoustic resonance. Symmetry selection is demonstrated for a three terminal piezoelectric transducer actuation scheme showing suppression of opposite-symmetry and enhancement of same-symmetry acoustic modes. Excitation of ultrasonic waves exhibits the anti-crossing behaviour predicted by coupled mode theory with the acoustic mode splitting into two distinct branches. Increased efficiency of energy transfer from the transducer into the fluid, with its corresponding increase in pressure amplitude, suggests a potential path toward significant increases in acoustic separator performance.
C1 [Bora, M.; Shusteff, M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Bora, M (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM bora1@llnl.gov
FU U.S. Department of Energy, 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. Jack Kotovsky for his insightful
comments on the manuscript. LLNL-JRNL-664577.
NR 34
TC 1
Z9 1
U1 5
U2 18
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1473-0197
EI 1473-0189
J9 LAB CHIP
JI Lab Chip
PY 2015
VL 15
IS 15
BP 3192
EP 3202
DI 10.1039/c5lc00343a
PG 11
WC Biochemical Research Methods; Chemistry, Multidisciplinary; Nanoscience
& Nanotechnology
SC Biochemistry & Molecular Biology; Chemistry; Science & Technology -
Other Topics
GA CM9IU
UT WOS:000358022900012
PM 26118358
ER
PT S
AU Tourret, D
Karma, A
Clarke, AJ
Gibbs, PJ
Imhoff, SD
AF Tourret, D.
Karma, A.
Clarke, A. J.
Gibbs, P. J.
Imhoff, S. D.
GP IOP
TI Three-dimensional Dendritic Needle Network model with application to
Al-Cu directional solidification experiments
SO MCWASP XIV: INTERNATIONAL CONFERENCE ON MODELLING OF CASTING, WELDING
AND ADVANCED SOLIDIFICATION PROCESSES
SE IOP Conference Series-Materials Science and Engineering
LA English
DT Proceedings Paper
CT 14th International Conference on Modeling of Casting, Welding and
Advanced Solidification Processes (MCWASP)
CY JUN 21-26, 2015
CL JAPAN
ID PHASE-FIELD; GROWTH
AB We present a three-dimensional (3D) extension of a previously proposed multi-scale Dendritic Needle Network (DNN) approach for the growth of complex dendritic microstructures. Using a new formulation of the DNN dynamics equations for dendritic paraboloid-branches of a given thickness, one can directly extend the DNN approach to 3D modeling. We validate this new formulation against known scaling laws and analytical solutions that describe the early transient and steady-state growth regimes, respectively. Finally, we compare the predictions of the model to in situ X-ray imaging of Al-Cu alloy solidification experiments. The comparison shows a very good quantitative agreement between 3D simulations and thin sample experiments. It also highlights the importance of full 3D modeling to accurately predict the primary dendrite arm spacing that is significantly over-estimated by 2D simulations.
C1 [Tourret, D.; Karma, A.] Northeastern Univ, Dept Phys, Boston, MA 02115 USA.
[Tourret, D.; Karma, A.] Ctr Interdisciplinary Res Complex Syst, Boston, MA USA.
[Tourret, D.; Clarke, A. J.; Gibbs, P. J.; Imhoff, S. D.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM USA.
RP Tourret, D (reprint author), Northeastern Univ, Dept Phys, Boston, MA 02115 USA.
EM dtourret@lanl.gov
RI Tourret, Damien/B-2854-2017
OI Tourret, Damien/0000-0003-4574-7004
NR 20
TC 5
Z9 5
U1 0
U2 15
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1757-8981
J9 IOP CONF SER-MAT SCI
PY 2015
VL 84
AR 012082
DI 10.1088/1757-899X/84/1/012082
PG 8
WC Materials Science, Multidisciplinary
SC Materials Science
GA BD1AC
UT WOS:000357879700082
ER
PT S
AU Carson, CG
Goueguel, C
Jain, J
McIntyre, D
AF Carson, Cantwell G.
Goueguel, Christian
Jain, Jinesh
McIntyre, Dustin
BE George, T
Dutta, AK
Islam, MS
TI Development of a laser induced breakdown spectroscopy sensor to assess
groundwater quality impacts resulting from geologic carbon sequestration
SO MICRO- AND NANOTECHNOLOGY SENSORS, SYSTEMS, AND APPLICATIONS VII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Micro- and Nanotechnology Sensors, Systems, and
Applications VII
CY APR 20-24, 2015
CL Baltimore, MD
SP SPIE
DE LIBS; CO2 sequestration
ID BULK AQUEOUS-SOLUTIONS; OCEANIC PRESSURES; CO2; LIBS; STORAGE; PROJECTS;
LEAKAGE; FIELDS; WATER
AB The injection of CO2 into deep aquifers can potentially affect the quality of groundwater supplies were leakage to occur from the injection formation or fluids. Therefore, the detection of CO2 and/or entrained contaminants that migrate into shallow groundwater aquifers is important both to assess storage permanence and to evaluate impacts on water resources. Naturally occurring elements (i.e., Li, Sr) in conjunction with isotope ratios can be used to detect such leakage. We propose the use of laser induced breakdown spectroscopy (LIBS) as an analytical technique to detect a suite of elements in water samples. LIBS has real time monitoring capabilities and can be applied for elemental and isotopic analysis of solid, liquid, and gas samples. The flexibility of probe design and use of fiber optics make it a suitable technique for real time measurements in harsh conditions and in hard to reach places. The laboratory scale experiments to measure Li, K, Ca, and Sr composition of water samples indicate that the technique produces rapid and reliable data. Since CO2 leakage from saline aquifers may accompany a brine solution, we studied the effect of sodium salts on the accuracy of LIBS analysis. This work specifically also details the fabrication and application of a miniature ruggedized remotely operated diode pumped solid state passively Q-switched laser system for use as the plasma excitation source for a real time LIBS analysis. This work also proposes the optical distribution of many laser spark sources across a wide area for widespread leak detection and basin monitoring.
C1 [Carson, Cantwell G.; Goueguel, Christian; Jain, Jinesh; McIntyre, Dustin] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
RP Carson, CG (reprint author), Natl Energy Technol Lab, 626 Cochrans Mill Rd, Pittsburgh, PA 15236 USA.
NR 37
TC 0
Z9 0
U1 2
U2 12
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-583-4
J9 PROC SPIE
PY 2015
VL 9467
AR 94671K
DI 10.1117/12.2175538
PG 15
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Optics; Physics, Applied
SC Engineering; Science & Technology - Other Topics; Optics; Physics
GA BD0IX
UT WOS:000357259000030
ER
PT S
AU Ohodnicki, PR
Credle, S
Buric, M
Lewis, R
Seachman, S
AF Ohodnicki, P. R., Jr.
Credle, S.
Buric, M.
Lewis, R.
Seachman, S.
BE George, T
Dutta, AK
Islam, MS
TI High Temperature, Harsh Environment Sensors for Advanced Power
Generation Systems
SO MICRO- AND NANOTECHNOLOGY SENSORS, SYSTEMS, AND APPLICATIONS VII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Micro- and Nanotechnology Sensors, Systems, and
Applications VII
CY APR 20-24, 2015
CL Baltimore, MD
SP SPIE
ID SURFACE-PLASMON RESONANCE; THIN-FILMS; GAS; SENSITIVITY; OXIDES; CO
AB One mission of the Crosscutting Technology Research program at the National Energy Technology Laboratory is to develop a suite of sensors and controls technologies that will ultimately increase efficiencies of existing fossil-fuel fired power plants and enable a new generation of more efficient and lower emission power generation technologies. The program seeks to accomplish this mission through soliciting, managing, and monitoring a broad range of projects both internal and external to the laboratory which span sensor material and device development, energy harvesting and wireless telemetry methodologies, and advanced controls algorithms and approaches. A particular emphasis is placed upon harsh environment sensing for compatibility with high temperature, erosive, corrosive, and highly reducing or oxidizing environments associated with large-scale centralized power generation. An overview of the full sensors and controls portfolio is presented and a selected set of current and recent research successes and on-going projects are highlighted. A more detailed emphasis will be placed on an overview of the current research thrusts and successes of the in-house sensor material and device research efforts that have been established to support the program.
C1 [Ohodnicki, P. R., Jr.] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
[Ohodnicki, P. R., Jr.] Carnegie Mellon Univ, Mat Sci & Engn, Pittsburgh, PA 15213 USA.
[Credle, S.; Buric, M.; Seachman, S.] Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Lewis, R.] US DOE, Off Fossil Energy, Washington, DC 20585 USA.
RP Ohodnicki, PR (reprint author), Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
NR 67
TC 0
Z9 0
U1 2
U2 10
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-583-4
J9 PROC SPIE
PY 2015
VL 9467
AR 94671M
DI 10.1117/12.2178016
PG 20
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Optics; Physics, Applied
SC Engineering; Science & Technology - Other Topics; Optics; Physics
GA BD0IX
UT WOS:000357259000032
ER
PT S
AU Peters, DW
Davids, PS
Kim, JK
Beechem, TE
Howell, SW
Leonhardt, D
Ohta, T
Wendt, JR
Montoya, JA
AF Peters, David W.
Davids, Paul S.
Kim, Jin K.
Beechem, Thomas E.
Howell, Steven W.
Leonhardt, Darin
Ohta, Taisuke
Wendt, Joel R.
Montoya, John A.
BE George, T
Dutta, AK
Islam, MS
TI Plasmonic Nanoantennas for Enhanced Midwave and Longwave Infrared
Imaging
SO MICRO- AND NANOTECHNOLOGY SENSORS, SYSTEMS, AND APPLICATIONS VII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Micro- and Nanotechnology Sensors, Systems, and
Applications VII
CY APR 20-24, 2015
CL Baltimore, MD
SP SPIE
DE nanoantenna; infrared; detector; metasurface; metamaterial
AB Conversion of plane waves to surface waves prior to detection allows key advantages in changes to the architecture of the detector pixels in a focal plane array. We have integrated subwavelength patterned metal nanoantennas with various detector materials to incorporate these advantages: midwave infrared indium gallium arsenide antimonide detectors and longwave infrared graphene detectors.
Nanoantennas offer a means to make infrared detectors much thinner by converting incoming plane waves to more tightly bound and concentrated surface waves. Thinner architectures reduce both dark current and crosstalk for improved performance. For graphene detectors, which are only one or two atomic layers thick, such field concentration is a necessity for usable device performance, as single pass plane wave absorption is insufficient. Using III-V detector material, we reduced thickness by over an order of magnitude compared to traditional devices.
We will discuss Sandia's motivation for these devices, which go beyond simple improvement in traditional performance metrics. The simulation methodology and design rules will be discussed in detail. We will also offer an overview of the fabrication processes required to make these subwavelength structures on at times complex underlying devices based on III-V detector material or graphene on silicon or silicon carbide. Finally, we will present our latest infrared detector characterization results for both III-V and graphene structures.
C1 [Peters, David W.; Davids, Paul S.; Kim, Jin K.; Beechem, Thomas E.; Howell, Steven W.; Leonhardt, Darin; Ohta, Taisuke; Wendt, Joel R.; Montoya, John A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Peters, DW (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM dwpeter@sandia.gov
NR 5
TC 0
Z9 0
U1 4
U2 14
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-583-4
J9 PROC SPIE
PY 2015
VL 9467
AR 946729
DI 10.1117/12.2177440
PG 6
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Optics; Physics, Applied
SC Engineering; Science & Technology - Other Topics; Optics; Physics
GA BD0IX
UT WOS:000357259000051
ER
PT S
AU Yan, AD
Zaghloul, M
Poole, ZL
Ohodnicki, P
Buric, M
Chen, KP
AF Yan, Aidong
Zaghloul, Mohamed
Poole, Zsolt L.
Ohodnicki, Paul
Buric, Michael
Chen, Kevin P.
BE George, T
Dutta, AK
Islam, MS
TI Ultra-high temperature fiber optical chemical sensors based on
nano-porous metal oxides
SO MICRO- AND NANOTECHNOLOGY SENSORS, SYSTEMS, AND APPLICATIONS VII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Micro- and Nanotechnology Sensors, Systems, and
Applications VII
CY APR 20-24, 2015
CL Baltimore, MD
SP SPIE
DE fiber optical sensor; hydrogen measurement; fiber Bragg grating; high
temperature; nano-porous metal oxide
ID HYDROGEN SENSOR; SENSING APPLICATIONS; GAS SENSOR; FILMS
AB This paper presents fiber optical gas sensors based on nano-porous metal oxide functional materials for high-temperature energy applications. A solution-based approach was used to produce nano-porous functional metal oxide and their dopant variants as sensing films, which was integrated on high-temperature stable FBGs in D-shaped silica fibers and sapphire fibers. The Bragg grating peaks were used to monitor the refractive index change and optical absorption loss due to the redox reaction between Pd-doped TiO2 and hydrogen from the room temperature to 800 degrees C. The experimental results show the sensor's response is reversible for hydrogen concentration between 0.1 vol.% to 5 vol. %. The response time of the hydrogen sensor is <8s.
C1 [Yan, Aidong; Zaghloul, Mohamed; Poole, Zsolt L.; Chen, Kevin P.] Univ Pittsburg, Dept Elect & Comp Engn, Pittsburgh, PA 15261 USA.
[Ohodnicki, Paul] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
[Buric, Michael] Natl Energy Technol Lab, Morgantown, WV 26505 USA.
RP Chen, KP (reprint author), Univ Pittsburg, Dept Elect & Comp Engn, Pittsburgh, PA 15261 USA.
EM pchenc@gmail.com
NR 20
TC 0
Z9 0
U1 2
U2 9
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-583-4
J9 PROC SPIE
PY 2015
VL 9467
AR 94671I
DI 10.1117/12.2178147
PG 8
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Optics; Physics, Applied
SC Engineering; Science & Technology - Other Topics; Optics; Physics
GA BD0IX
UT WOS:000357259000028
ER
PT J
AU Gizzatov, A
Hernaandez-Rivera, M
Keshishian, V
Mackeyev, Y
Law, JJ
Guven, A
Sethi, R
Qu, FF
Muthupillai, R
Cabreira-Hansen, MD
Willerson, JT
Perin, EC
Ma, Q
Bryante, RG
Wilson, LJ
AF Gizzatov, Ayrat
Hernandez-Rivera, Mayra
Keshishian, Vazrik
Mackeyev, Yuri
Law, Justin J.
Guven, Adem
Sethi, Richa
Qu, Feifei
Muthupillai, Raja
Cabreira-Hansen, Maria da Graca
Willerson, James T.
Perin, Emerson C.
Ma, Qing
Bryante, Robert G.
Wilson, Lon J.
TI Surfactant-free Gd3+-ion-containing carbon nanotube MRI contrast agents
for stem cell labeling
SO NANOSCALE
LA English
DT Article
ID IRON-OXIDE NANOPARTICLES; GRAPHENE NANORIBBONS; GADONANOTUBES;
RELAXIVITY; TRACKING; NANOSTRUCTURES; NANOCONSTRUCTS; ENHANCEMENT;
CONFINEMENT; RELAXATION
AB There is an ever increasing interest in developing new stem cell therapies. However, imaging and tracking stem cells in vivo after transplantation remains a serious challenge. In this work, we report new, functionalized and high-performance Gd3+-ion-containing ultra-short carbon nanotube (US-tube) MRI contrast agent (CA) materials which are highly-water-dispersible (ca. 35 mg ml(-1)) without the need of a surfactant. The new materials have extremely high T-1-weighted relaxivities of 90 (mM s)(-1) per Gd3+ ion at 1.5 T at room temperature and have been used to safely label porcine bone-marrow-derived mesenchymal stem cells for MR imaging. The labeled cells display excellent image contrast in phantom imaging experiments, and TEM images of the labeled cells, in general, reveal small clusters of the CA material located within the cytoplasm with 10(9) Gd3+ ions per cell.
C1 [Gizzatov, Ayrat; Hernandez-Rivera, Mayra; Keshishian, Vazrik; Mackeyev, Yuri; Law, Justin J.; Guven, Adem; Sethi, Richa; Wilson, Lon J.] Rice Univ, Richard E Smalley Inst Nanoscale Sci & Technol, Dept Chem, Houston, TX 77251 USA.
[Qu, Feifei; Muthupillai, Raja] St Lukes Episcopal Hosp, Dept Radiol, Houston, TX 77030 USA.
[Cabreira-Hansen, Maria da Graca; Willerson, James T.; Perin, Emerson C.] St Lukes Episcopal Hosp, Texas Heart Inst, Stem Cell Ctr, Houston, TX 77225 USA.
[Ma, Qing] Northwestern Synchrotron Res, DND CAT, Adv Photon Source, Argonne, IL 60439 USA.
[Bryante, Robert G.] Univ Virginia, Dept Chem, Charlottesville, VA 22904 USA.
RP Wilson, LJ (reprint author), Rice Univ, Richard E Smalley Inst Nanoscale Sci & Technol, Dept Chem, 6100 Main St, Houston, TX 77251 USA.
EM durango@rice.edu
FU The Welch Foundation [C-0627]; NSF [0940902]; E.I. DuPont de Nemours
Co.; Dow Chemical Company; State of Illinois; U.S. Dept. of Energy,
Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
FX A. G., M. H. R., Y. M., J. J. L., and L. J. W. acknowledge The Welch
Foundation (C-0627) and the NSF Graduate Research Fellowship Program
(GRFP) 0940902 (J.J.L.) for partial support of this work. The authors
thank Allan Prejusa for flow cytometry analysis and Ralph Nichols for
acquiring the TEM images (Texas Heart Institute at St. Luke's Episcopal
Hospital, Houston, TX, USA), and Dr. Maximillian Buja (University of
Texas Health Science Center of Houston, Houston, TX, USA) for his
assistance with TEM analysis. The X-ray absorption spectroscopy work was
carried out at the DuPont-Northwestern-Dow-Collaborative Access Team
(DND-CAT) beamline at the Advanced Photon Source. the DND-CAT was
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 U.S. Dept. of
Energy, Office of Science, Office of Basic Energy Sciences, under
Contract no. DE-AC02-06CH11357.
NR 29
TC 7
Z9 7
U1 6
U2 19
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 28
BP 12085
EP 12091
DI 10.1039/c5nr02078f
PG 7
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CM6NO
UT WOS:000357805700032
PM 26119138
ER
PT S
AU Sheen, DM
AF Sheen, David M.
BE Wikner, DA
Luukanen, AR
TI Noise analysis for near field 3-D FM-CW radar imaging systems
SO PASSIVE AND ACTIVE MILLIMETER-WAVE IMAGING XVIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Passive and Active Millimeter-Wave Imaging XVIII
CY APR 23, 2015
CL Baltimore, MD
SP SPIE
DE Millimeter waves; imaging; personnel surveillance; personnel screening;
concealed-weapon detection
ID CONCEALED WEAPON DETECTION; MILLIMETER-WAVE; TERAHERTZ
AB Near field radar imaging systems are used for demanding security applications including concealed weapon detection in airports and other high-security venues. Despite the near-field operation, phase noise and thermal noise can limit performance in several ways. Practical imaging systems can employ arrays with low gain antennas and relatively large signal distribution networks that have substantial losses which limit transmit power and increase the effective noise figure of the receiver chain, resulting in substantial thermal noise. Phase noise can also limit system performance. The signal coupled from transmitter to receiver is much larger than expected target signals. Phase noise from this coupled signal can set the system noise floor if the oscillator is too noisy. Frequency modulated continuous wave (FM-CW) radar transceivers used in short range systems are relatively immune to the effects of the coupled phase noise due to range correlation effects. This effect can reduce the phase-noise floor such that it is below the thermal noise floor for moderate performance oscillators. Phase noise is also manifested in the range response around bright targets, and can cause smaller targets to be obscured. Noise in synthetic aperture imaging systems is mitigated by the processing gain of the system. In this paper, the effects of thermal noise, phase noise, and processing gain are analyzed in the context of a near field 3-D FM-CW imaging radar as might be used for concealed weapon detection. In addition to traditional frequency domain analysis, a time-domain simulation is employed to graphically demonstrate the effect of these noise sources on a fast-chirping FM-CW system.
C1 Pacific NW Natl Lab, Battelle Mem Inst, US DOE, Richland, WA 99352 USA.
RP Sheen, DM (reprint author), Pacific NW Natl Lab, Battelle Mem Inst, US DOE, POB 999, Richland, WA 99352 USA.
EM david.sheen@pnnl.gov
NR 14
TC 0
Z9 0
U1 2
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-578-0
J9 PROC SPIE
PY 2015
VL 9462
AR 946206
DI 10.1117/12.2180032
PG 11
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0QE
UT WOS:000357564200003
ER
PT S
AU Ben Dixon, P
Murphy, R
Rosenberg, D
Grein, ME
Stelmakh, V
Bennink, RS
Wong, FNC
AF Ben Dixon, P.
Murphy, Ryan
Rosenberg, Danna
Grein, Matthew E.
Stelmakh, Veronika
Bennink, Ryan S.
Wong, Franco N. C.
BE Donkor, E
Pirich, AR
Hayduk, M
TI High heralding-efficiency of near-IR fiber coupled photon pairs for
quantum technologies
SO QUANTUM INFORMATION AND COMPUTATION XIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Quantum Information and Computation XIII
CY APR 22-24, 2015
CL Baltimore, MD
SP SPIE
DE Quantum information; heralding efficiency; entanglement
ID PERIODICALLY POLED KTIOPO4; CRYPTOGRAPHY; GENERATION; RBTIOASO4;
VIOLATION; KTIOASO4; CRYSTALS
AB We report on the development and use of a high heralding-efficiency, single-mode-fiber coupled telecom-band source of entangled photons for quantum technology applications. The source development efforts consisted of theoretical and experimental efforts and we demonstrated a correlated-mode coupling efficiency of 97% 2%, the highest efficiency yet achieved for this type of system. We then incorporated these beneficial source development techniques in a Sagnac configured telecom-band entangled photon source that generates photon pairs entangled in both time/energy and polarization degrees of freedom. We made use of these highly desirable entangled states to investigate several promising quantum technologies.
C1 [Ben Dixon, P.; Murphy, Ryan; Rosenberg, Danna; Grein, Matthew E.] MIT, Lincoln Lab, Lexington, MA 02173 USA.
[Stelmakh, Veronika; Wong, Franco N. C.] MIT, Elect Res Lab, Cambridge, MA 02139 USA.
[Bennink, Ryan S.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Ben Dixon, P (reprint author), MIT, Lincoln Lab, 244 Wood St, Lexington, MA 02173 USA.
EM ben.dixon@ll.mit.edu
NR 37
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-616-9
J9 PROC SPIE
PY 2015
VL 9500
AR 950016
DI 10.1117/12.2178907
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD1CK
UT WOS:000357930800028
ER
PT S
AU Benioff, P
AF Benioff, Paul
BE Donkor, E
Pirich, AR
Hayduk, M
TI Principal Fiber bundle description of number scaling for scalars and
vectors: Application to gauge theory.
SO QUANTUM INFORMATION AND COMPUTATION XIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Quantum Information and Computation XIII
CY APR 22-24, 2015
CL Baltimore, MD
SP SPIE
DE Fiber bundles; number scaling; structure valued fields; scalar and
vector valued fields; gauge theory
AB The purpose of this paper is to put the description of number scaling and its effects on physics and geometry on a firmer foundation, and to make it more understandable. A main point is that two different concepts, number and number value are combined in the usual representations of number structures. This is valid as long as just one structure of each number type is being considered. It is not valid when different structures of each number type are being considered. Elements of base sets of number structures, considered by themselves, have no meaning. They acquire meaning or value as elements of a number structure. Fiber bundles over a space or space time manifold, M, are described. The fiber consists of a collection of many real or complex number structures and vector space structures. The structures are parameterized by a real or complex scaling factor, s. A vector space at a fiber level, s, has, as scalars, real or complex number structures at the same level. Connections are described that relate scalar and vector space structures at both neighbor M locations and at neighbor scaling levels. Scalar and vector structure valued fields are described and covariant derivatives of these fields are obtained. Two complex vector fields, each with one real and one imaginary field, appear, with one complex field associated with positions in M and the other with position dependent scaling factors. A derivation of the covariant derivative for scalar and vector valued fields gives the same vector fields. The derivation shows that the complex vector field associated with scaling fiber levels is the gradient of a complex scalar field. Use of these results in gauge theory shows that the imaginary part of the vector field associated with M positions acts like the electromagnetic field. The physical relevance of the other three fields, if any, is not known.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Benioff, P (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
EM pbenioff@anl.gov
NR 22
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-616-9
J9 PROC SPIE
PY 2015
VL 9500
AR 95000X
DI 10.1117/12.2176080
PG 18
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD1CK
UT WOS:000357930800020
ER
PT S
AU Fanto, ML
Tison, CC
Howland, GA
Preble, SF
Alsing, PM
Smith, AM
AF Fanto, Michael L.
Tison, Christopher C.
Howland, Gregory A.
Preble, Stefan F.
Alsing, Paul M.
Smith, A. Matthew
BE Donkor, E
Pirich, AR
Hayduk, M
TI A Bright PPKTP Waveguide Source of Polarization Entangled Photons
SO QUANTUM INFORMATION AND COMPUTATION XIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Quantum Information and Computation XIII
CY APR 22-24, 2015
CL Baltimore, MD
SP SPIE
DE quantum; entangled photons; spontaneous parametric down-conversion; four
wave mixing
AB The need for bright efficient sources of entangled photons has been a subject of tremendous research over the last decade. Researchers have been working to increase the brightness and purity to help overcome the spontaneous nature of the sources. Periodic poling has been implemented to allow for the use of crystals that would not normally satisfy the phase matching conditions. Utilizing periodic poling and single mode waveguide confinement of the pump field has yielded extremely large effective nonlinearities in sources easily producing millions of photon pairs. Here we will demonstrate these large nonlinearity effects in a periodically poled potassium titanyl phosphate (PPKTP) waveguide as well as characterizing the source purity.
C1 [Fanto, Michael L.; Howland, Gregory A.; Alsing, Paul M.] US Air Force, Res Lab, Rome, NY 13441 USA.
[Tison, Christopher C.] Rome Res Corp, Rome, NY USA.
[Preble, Stefan F.] Rochester Inst Technol, Rochester, NY 14623 USA.
[Smith, A. Matthew] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Fanto, ML (reprint author), US Air Force, Res Lab, Rome, NY 13441 USA.
NR 21
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-616-9
J9 PROC SPIE
PY 2015
VL 9500
AR 950014
DI 10.1117/12.2177029
PG 12
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD1CK
UT WOS:000357930800026
ER
PT S
AU Smith, AM
Evans, PG
Lawrie, B
Legre, M
Lougovski, P
Ray, W
Williams, BP
Qi, B
Grice, WP
AF Smith, A. M.
Evans, P. G.
lawrie, B.
Legre, M.
Lougovski, P.
Ray, W.
Williams, B. P.
Qi, B.
Grice, W. P.
BE Donkor, E
Pirich, AR
Hayduk, M
TI Secret Key Generation via a Modified Quantum Secret Sharing Protocol
SO QUANTUM INFORMATION AND COMPUTATION XIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Quantum Information and Computation XIII
CY APR 22-24, 2015
CL Baltimore, MD
SP SPIE
AB We present and experimentally show a novel protocol for distributing secret information between two and only two parties in a N-party single-qubit Quantum Secret Sharing (QSS) system. We demonstrate this new algorithm with N = 3 active parties over 6km of telecom. fiber. Our experimental device is based on the Clavis2 Quantum Key Distribution (QKD) system built by ID Quantique but is generalizable to any implementation. We show that any two out of the N parties can build secret keys based on partial information from each other and with collaboration from the remaining N 2 parties. This algorithm allows for the creation of two-party secret keys were standard QSS does not and significantly reduces the number of resources needed to implement QKD on a highly connected network such as the electrical grid.
C1 [Smith, A. M.; Evans, P. G.; lawrie, B.; Lougovski, P.; Ray, W.; Williams, B. P.; Qi, B.; Grice, W. P.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Legre, M.] ID Quant SA, Geneva, Switzerland.
RP Smith, AM (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM smitham1@ornl.gov
RI Lawrie, Benjamin/B-7182-2016; Qi, Bing/J-5028-2014;
OI Lawrie, Benjamin/0000-0003-1431-066X; Qi, Bing/0000-0001-7723-8998;
Grice, Warren/0000-0003-4266-4692
NR 10
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-616-9
J9 PROC SPIE
PY 2015
VL 9500
AR 950008
DI 10.1117/12.2178904
PG 5
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD1CK
UT WOS:000357930800006
ER
PT S
AU Smith, AM
Evans, PG
Williams, BP
Grice, WP
AF Smith, A. M.
Evans, P. G.
Williams, B. P.
Grice, W. P.
BE Donkor, E
Pirich, AR
Hayduk, M
TI Provably secure time distribution for the electric grid
SO QUANTUM INFORMATION AND COMPUTATION XIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Quantum Information and Computation XIII
CY APR 22-24, 2015
CL Baltimore, MD
SP SPIE
DE Quantum Time Distribution
AB We demonstrate a quantum time distribution (QTD) method that combines the precision of optical timing techniques with the integrity of quantum key distribution (QKD). Critical infrastructure is dependent on microprocessor- and programmable logic-based monitoring and control systems. The distribution of timing information across the electric grid is accomplished by GPS signals which are known to be vulnerable to spoofing. We demonstrate a method for synchronizing remote clocks based on the arrival time of photons in a modified QKD system. This has the advantage that the signal can be verified by examining the quantum states of the photons similar to QKD.
C1 [Smith, A. M.; Evans, P. G.; Williams, B. P.; Grice, W. P.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Smith, AM (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM smitham1@ornl.gov
OI Grice, Warren/0000-0003-4266-4692
NR 4
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-616-9
J9 PROC SPIE
PY 2015
VL 9500
AR 950007
DI 10.1117/12.2178917
PG 4
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD1CK
UT WOS:000357930800005
ER
PT S
AU Moody, DI
Smith, DA
AF Moody, Daniela I.
Smith, David A.
BE Huang, B
Chang, CI
Lee, C
Li, Y
Du, Q
TI Adaptive sparse signal processing for discrimination of satellite-based
radiofrequency (RF) recordings of lightning events
SO SATELLITE DATA COMPRESSION, COMMUNICATIONS, AND PROCESSING XI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Satellite Data Compression, Communications, and Processing
XI
CY APR 23-24, 2015
CL Baltimore, MD
SP SPIE
DE lightning classification; non-stationary RF signal processing; sparse
classification; sparse representations; adaptive sampling; RF analytical
dictionary
ID PURSUITS
AB For over two decades, Los Alamos National Laboratory programs have included an active research effort utilizing satellite observations of terrestrial lightning to learn more about the Earth's RF background. The FORTE satellite provided a rich satellite lightning database, which has been previously used for some event classification, and remains relevant for advancing lightning research. Lightning impulses are dispersed as they travel through the ionosphere, appearing as nonlinear chirps at the receiver on orbit. The data processing challenge arises from the combined complexity of the lightning source model, the propagation medium nonlinearities, and the sensor artifacts. We continue to develop modern event classification capability on the FORTE database using adaptive signal processing combined with compressive sensing techniques. The focus of our work is improved feature extraction using sparse representations in overcomplete analytical dictionaries. We explore two possible techniques for detecting lightning events, and showcase the algorithms on few representative data examples. We present preliminary results of our work and discuss future development.
C1 [Moody, Daniela I.; Smith, David A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Moody, DI (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
NR 19
TC 0
Z9 0
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-617-6
J9 PROC SPIE
PY 2015
VL 9501
AR 95010C
DI 10.1117/12.2177584
PG 13
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD1CM
UT WOS:000357931500011
ER
PT S
AU Alvine, KJ
Suter, JD
Bernacki, BE
Bennett, WD
AF Alvine, Kyle J.
Suter, Jonathan D.
Bernacki, Bruce E.
Bennett, Wendy D.
BE Carapezza, EM
TI Optically resonant subwavelength films for tamper-indicating tags and
seals
SO SENSORS, AND COMMAND, CONTROL, COMMUNICATIONS, AND INTELLIGENCE (C3I)
TECHNOLOGIES FOR HOMELAND SECURITY, DEFENSE, AND LAW ENFORCEMENT XIV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Sensors, and Command, Control, Communications, and
Intelligence (C3I) Technologies for Homeland Security, Defense, and Law
Enforcement XIV
CY APR 20-22, 2015
CL Baltimore, MD
SP SPIE
DE nanostructure; resonant nanostructure; optical open ring resonator;
tamper indicating film; nanostructured tamper indicating film
AB We present the design, modeling and performance of a proof-of-concept tamper indicating approach that exploits newly-developed subwavelength-patterned films. These films have a nanostructure-dependent resonant optical reflection that is wavelength, angle, and polarization dependent. As such, they can be tailored to fabricate overlay transparent films for tamper indication and authentication of sensitive or controlled materials not possible with currently-known technologies. An additional advantage is that the unique optical signature is dictated by the geometry and fabrication process of the nanostructures in the film, rather than on the material used. The essential structure unit in the subwavelength resonant coating is a nanoscale Open-Ring Resonator (ORR). This building block is fabricated by coating a dielectric nanoscale template with metal to form a hemispherical shell-like structure. This curved metallic shell structure has a cross-section with an intrinsic capacitance and inductance and is thus the optical equivalent to the well-known "LC" circuit where the capacitance and inductance are determined by the nanoshell dimensions. For structures with sub 100 nm scale, this resonance occurs in the visible electromagnetic spectrum, and in the IR for larger shells. Tampering of the film would be visible though misalignment of the angle-sensitive features in the film. It is additionally possible to add in intrinsic oxidation and strain sensitive matrix materials to further complicate tamper repair and counterfeiting. Cursory standoff readout would be relatively simple using a combination of a near-infrared (or visible) LED flashlight and polarizer or passively using room lighting illumination and a dispersive detector.
C1 [Alvine, Kyle J.; Suter, Jonathan D.; Bernacki, Bruce E.; Bennett, Wendy D.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Alvine, KJ (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM kyle.alvine@pnnl.gov
OI Suter, Jonathan/0000-0001-5709-6988
NR 4
TC 1
Z9 1
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-572-8
J9 PROC SPIE
PY 2015
VL 9456
AR 94560C
DI 10.1117/12.2177160
PG 7
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BD0QH
UT WOS:000357569500006
ER
PT J
AU Kim, HC
Lee, H
Jung, H
Choi, YH
Meron, M
Lin, BH
Bang, J
Won, YY
AF Kim, Hyun Chang
Lee, Hoyoung
Jung, Hyunjung
Choi, Yun Hwa
Meron, Mati
Lin, Binhua
Bang, Joona
Won, You-Yeon
TI Humidity-dependent compression-induced glass transition of the air-water
interfacial Langmuir films of poly(D,L-lactic acid-ran-glycolic acid)
(PLGA)
SO SOFT MATTER
LA English
DT Article
ID THIN POLYMER-FILMS; SURFACE PRESSURE; MECHANICAL-PROPERTIES; POLY(LACTIC
ACID); BLOCK-COPOLYMERS; DRUG-DELIVERY; 2 DIMENSIONS; MONOLAYERS;
DYNAMICS; CHAINS
AB Constant rate compression isotherms of the air-water interfacial Langmuir films of poly(D,L-lactic acid-ran-glycolic acid) (PLGA) show a distinct feature of an exponential increase in surface pressure in the high surface polymer concentration regime. We have previously demonstrated that this abrupt increase in surface pressure is linked to the glass transition of the polymer film, but the detailed mechanism of this process is not fully understood. In order to obtain a molecular-level understanding of this behavior, we performed extensive characterizations of the surface mechanical, structural and rheological properties of Langmuir PLGA films at the air-water interface, using combined experimental techniques including the Langmuir film balance, X-ray reflectivity and double-wall-ring interfacial rheometry methods. We observed that the mechanical and structural responses of the Langmuir PLGA films are significantly dependent on the rate of film compression; the glass transition was induced in the PLGA film only at fast compression rates. Surprisingly, we found that this deformation rate dependence is also dependent on the humidity of the environment. With water acting as a plasticizer for the PLGA material, the diffusion of water molecules through the PLGA film seems to be the key factor in the determination of the glass transformation properties and thus the mechanical response of the PLGA film against lateral compression. Based on our combined results, we hypothesize the following mechanism for the compression-induced glass transformation of the Langmuir PLGA film; (1) initially, a humidified/non-glassy PLGA film is formed in the full surface-coverage region (where the surface pressure shows a plateau) during compression; (2) further compression leads to the collapse of the PLGA chains and the formation of new surfaces on the air side of the film, and this newly formed top layer of the PLGA film is transiently glassy in character because the water evaporation rate in the top surface region is momentarily faster than the humidification rate (due to the initial roughness of the newly formed surface); (3) after some time, the top layer itself becomes humidified through diffusion of water from the subphase, and thus it becomes non-glassy, leading to the relaxation of the applied compressive stress.
C1 [Kim, Hyun Chang; Lee, Hoyoung; Choi, Yun Hwa; Won, You-Yeon] Purdue Univ, Sch Chem Engn, W Lafayette, IN 47907 USA.
[Jung, Hyunjung; Bang, Joona] Korea Univ, Dept Chem & Biol Engn, Seoul 136713, South Korea.
[Meron, Mati; Lin, Binhua] Univ Chicago, Adv Photon Source, Chicago, IL 60439 USA.
RP Won, YY (reprint author), Purdue Univ, Sch Chem Engn, W Lafayette, IN 47907 USA.
EM yywon@ecn.purdue.edu
RI Bang, Joona/F-6589-2013
FU U.S. National Science Foundation (NSF) [DMR-0906567, CBET-1264336]; NSF
[NSF/CHE-1346572]; U.S. DOE [DE-AC02-06CH11357]; Human Resources
Development Program of the Ministry of Trade, Industry and Energy of the
Korean Government (KETEP) [20134010200600]
FX We would like to thank the U.S. National Science Foundation (NSF) for
providing financial support for this research (DMR-0906567, and
CBET-1264336). ChemMatCARS Sector 15 at the Advanced Photon Source of
Argonne National Laboratory (where the XR measurements reported in this
paper were performed) is supported by the NSF under grant number
NSF/CHE-1346572. The use of the Advanced Photon Source, an Office of
Science User Facility operated for the U.S. Department of Energy (DOE)
Office of Science by Argonne National Laboratory, is supported by the
U.S. DOE under Contract No. DE-AC02-06CH11357. HJ's participation in the
XR measurements was possible through support from the Human Resources
Development Program of the Ministry of Trade, Industry and Energy of the
Korean Government (KETEP Grant No. 20134010200600).
NR 45
TC 1
Z9 1
U1 1
U2 14
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
EI 1744-6848
J9 SOFT MATTER
JI Soft Matter
PY 2015
VL 11
IS 28
BP 5666
EP 5677
DI 10.1039/c4sm02535k
PG 12
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA CM6HJ
UT WOS:000357788700010
PM 26082950
ER
PT J
AU Agrawal, A
Yu, HY
Srivastava, S
Choudhury, S
Narayanan, S
Archer, LA
AF Agrawal, Akanksha
Yu, Hsiu-Yu
Srivastava, Samanvaya
Choudhury, Snehashis
Narayanan, Suresh
Archer, Lynden A.
TI Dynamics and yielding of binary self-suspended nanoparticle fluids (vol
11, pg 5224, 2015)
SO SOFT MATTER
LA English
DT Correction
C1 [Agrawal, Akanksha; Srivastava, Samanvaya; Choudhury, Snehashis; Archer, Lynden A.] Cornell Univ, Sch Chem & Biomol Engn, Ithaca, NY 14853 USA.
[Yu, Hsiu-Yu] Univ Penn, Dept Chem & Biomol Engn, Philadelphia, PA 19104 USA.
[Narayanan, Suresh] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Archer, LA (reprint author), Cornell Univ, Sch Chem & Biomol Engn, Ithaca, NY 14853 USA.
EM laa25@cornell.edu
NR 1
TC 0
Z9 0
U1 2
U2 10
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
EI 1744-6848
J9 SOFT MATTER
JI Soft Matter
PY 2015
VL 11
IS 28
BP 5780
EP 5780
DI 10.1039/c5sm90109j
PG 1
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA CM6HJ
UT WOS:000357788700023
PM 26115048
ER
PT S
AU Sistrunk, E
Grilj, J
Jeong, J
Samant, MG
Gray, AX
Durr, HA
Parkin, SSP
Guhr, M
AF Sistrunk, Emily
Grilj, Jakob
Jeong, Jaewoo
Samant, Mahesh G.
Gray, Alexander X.
Duerr, Hermann A.
Parkin, Stuart S. P.
Guehr, Markus
BE Yamanouchi, I
Cundiff, S
DeVivieRiedle, R
KuwataGonokami, M
DiMauro, L
TI Extreme Ultraviolet Transient Grating Measurement of Insulator-Metal
Transition Dynamics in VO2
SO ULTRAFAST PHENOMENA XIX
SE Springer Proceedings in Physics
LA English
DT Proceedings Paper
CT 19th International Conference on Ultrafast Phenomena
CY JUL 07-11, 2014
CL Okinawa, JAPAN
SP Japan Intense Light Field Sci Soc, Ctr Ultrafast Intense Laser Sci, Univ Tokyo
AB We demonstrate spectrally resolved transient grating (TG) spectroscopy in the extreme ultraviolet (EUV) near the M-edge of vanadium dioxide. Time-dependent and broadband EUV-TG measurements separate the index of refraction change due to the insulator to metal transition from purely acoustic effects.
C1 [Sistrunk, Emily] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Sistrunk, Emily; Grilj, Jakob; Guehr, Markus] SLAC Natl Accelerator Lab, Stanford PULSE Inst, Menlo Pk, CA 94025 USA.
[Grilj, Jakob] Ecole Polytech Fed Lausanne, Lab Spect Ultrarapide, Lausanne, Switzerland.
[Jeong, Jaewoo; Samant, Mahesh G.; Parkin, Stuart S. P.] IBM Almaden Res Ctr, San Jose, CA 95120 USA.
[Gray, Alexander X.; Duerr, Hermann A.] SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, Menlo Pk, CA 94025 USA.
[Gray, Alexander X.] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA.
RP Sistrunk, E (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM link7@llnl.gov; mguehr@stanford.edu
NR 7
TC 0
Z9 0
U1 1
U2 3
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0930-8989
BN 978-3-319-13242-6; 978-3-319-13241-9
J9 SPRINGER PROC PHYS
PY 2015
VL 162
BP 64
EP 67
DI 10.1007/978-3-319-13242-6_16
PG 4
WC Physics, Applied
SC Physics
GA BD0UY
UT WOS:000357738800016
ER
PT S
AU Shearer, AJ
Caplins, BW
Suich, DE
Harris, CB
AF Shearer, Alex J.
Caplins, Benjamin W.
Suich, David E.
Harris, Charles B.
BE Yamanouchi, I
Cundiff, S
DeVivieRiedle, R
KuwataGonokami, M
DiMauro, L
TI Ultrafast Electron Solvation at the Room Temperature Ionic Liquid/Metal
Interface
SO ULTRAFAST PHENOMENA XIX
SE Springer Proceedings in Physics
LA English
DT Proceedings Paper
CT 19th International Conference on Ultrafast Phenomena
CY JUL 07-11, 2014
CL Okinawa, JAPAN
SP Japan Intense Light Field Sci Soc, Ctr Ultrafast Intense Laser Sci, Univ Tokyo
ID DYNAMICS
AB Ultrafast electron solvation was studied in thin films of the room temperature ionic liquid [Bmpyr](+) [NTf2](-) on a Ag(111) substrate. Two-photon photoemission spectra reveal a solvation effect which increases from a 250 meV shift in under 400 fs for the monolayer to a 1 eV shift in over 100 ps for the trilayer. The state's binding energy relaxes along the same path for all coverages at a given temperature, suggesting that the solvation process is insensitive to film thickness. Time-dependent population analysis showed that the lifetime of solvation changes with coverage due to charge screening. In the monolayer coverage regime, the state has dispersive, delocalized character at early times and nondispersive, localized character after 200 fs.
C1 [Shearer, Alex J.; Caplins, Benjamin W.; Suich, David E.; Harris, Charles B.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Shearer, Alex J.; Caplins, Benjamin W.; Suich, David E.; Harris, Charles B.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Harris, CB (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM cbharris@berkeley.edu
NR 5
TC 0
Z9 0
U1 2
U2 2
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0930-8989
BN 978-3-319-13242-6; 978-3-319-13241-9
J9 SPRINGER PROC PHYS
PY 2015
VL 162
BP 317
EP 320
DI 10.1007/978-3-319-13242-6_77
PG 4
WC Physics, Applied
SC Physics
GA BD0UY
UT WOS:000357738800077
ER
PT S
AU Neppl, S
Liu, YS
Wu, CH
Shavorskiy, A
Zegkinoglou, I
Troy, T
Slaughter, DS
Ahmed, M
Tremsin, AS
Guo, JH
Glans, PA
Salmeron, M
Bluhm, H
Gessner, O
AF Neppl, S.
Liu, Y. -S.
Wu, C. -H.
Shavorskiy, A.
Zegkinoglou, I.
Troy, T.
Slaughter, D. S.
Ahmed, M.
Tremsin, A. S.
Guo, J. -H.
Glans, P. -A.
Salmeron, M.
Bluhm, H.
Gessner, O.
BE Yamanouchi, I
Cundiff, S
DeVivieRiedle, R
KuwataGonokami, M
DiMauro, L
TI Toward Ultrafast In Situ X-ray Studies of Interfacial
Photoelectrochemistry
SO ULTRAFAST PHENOMENA XIX
SE Springer Proceedings in Physics
LA English
DT Proceedings Paper
CT 19th International Conference on Ultrafast Phenomena
CY JUL 07-11, 2014
CL Okinawa, JAPAN
SP Japan Intense Light Field Sci Soc, Ctr Ultrafast Intense Laser Sci, Univ Tokyo
ID CHARGE-TRANSFER
AB Picosecond time-resolved in situ X-ray absorption and X-ray photoelectron spectroscopy techniques for atomic site-specific real-time studies of interfacial photoelectrochemistry are developed at the Advanced Light Source (ALS). First experiments monitor electronic dynamics in films of dye-sensitized nanocrystals and at hematite-electrolyte interfaces.
C1 [Neppl, S.; Gessner, O.] Univ Calif Berkeley, Ultrafast Xray Sci Lab, Berkeley, CA 94720 USA.
[Neppl, S.; Shavorskiy, A.; Zegkinoglou, I.; Troy, T.; Slaughter, D. S.; Ahmed, M.; Bluhm, H.; Gessner, O.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Liu, Y. -S.; Guo, J. -H.; Glans, P. -A.] Univ Calif Berkeley, Adv Light Source, Berkeley, CA 94720 USA.
[Wu, C. -H.; Salmeron, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Wu, C. -H.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Tremsin, A. S.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
RP Neppl, S (reprint author), Univ Calif Berkeley, Ultrafast Xray Sci Lab, Berkeley, CA 94720 USA.
EM SNeppl@lbl.gov
RI Zegkinoglou, Ioannis/H-2343-2013
NR 4
TC 1
Z9 1
U1 2
U2 7
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0930-8989
BN 978-3-319-13242-6; 978-3-319-13241-9
J9 SPRINGER PROC PHYS
PY 2015
VL 162
BP 325
EP 328
DI 10.1007/978-3-319-13242-6_79
PG 4
WC Physics, Applied
SC Physics
GA BD0UY
UT WOS:000357738800079
ER
PT S
AU Hoogeboom-Pot, K
Hernandez-Charpak, JN
Anderson, E
Gu, XK
Yang, RG
Kapteyn, H
Murnane, M
Nardi, D
AF Hoogeboom-Pot, Kathleen
Hernandez-Charpak, Jorge N.
Anderson, Erik
Gu, Xiaokun
Yang, Ronggui
Kapteyn, Henry
Murnane, Margaret
Nardi, Damiano
BE Yamanouchi, I
Cundiff, S
DeVivieRiedle, R
KuwataGonokami, M
DiMauro, L
TI A New Regime of Nanoscale Thermal Transport: Collective Diffusion
Counteracts Dissipation Inefficiency
SO ULTRAFAST PHENOMENA XIX
SE Springer Proceedings in Physics
LA English
DT Proceedings Paper
CT 19th International Conference on Ultrafast Phenomena
CY JUL 07-11, 2014
CL Okinawa, JAPAN
SP Japan Intense Light Field Sci Soc, Ctr Ultrafast Intense Laser Sci, Univ Tokyo
AB We uncover a new regime of nanoscale thermal transport that dominates when the separation between heat sources is small compared with the substrate's dominant phonon mean free paths. Surprisingly, the interplay between neighboring heat sources can facilitate efficient, diffusive-like heat dissipation.
C1 [Hoogeboom-Pot, Kathleen; Hernandez-Charpak, Jorge N.; Kapteyn, Henry; Murnane, Margaret; Nardi, Damiano] Univ Colorado, JILA, Boulder, CO 80309 USA.
[Hoogeboom-Pot, Kathleen; Hernandez-Charpak, Jorge N.; Kapteyn, Henry; Murnane, Margaret; Nardi, Damiano] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Anderson, Erik] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
[Gu, Xiaokun; Yang, Ronggui] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA.
RP Nardi, D (reprint author), Univ Colorado, JILA, Boulder, CO 80309 USA.
EM damiano.nardi@jila.colorado.edu
RI Gu, Xiaokun/H-4069-2011; Yang, Ronggui/H-1278-2011
OI Gu, Xiaokun/0000-0003-3803-3951;
NR 5
TC 1
Z9 1
U1 0
U2 3
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0930-8989
BN 978-3-319-13242-6; 978-3-319-13241-9
J9 SPRINGER PROC PHYS
PY 2015
VL 162
BP 341
EP 344
DI 10.1007/978-3-319-13242-6_83
PG 4
WC Physics, Applied
SC Physics
GA BD0UY
UT WOS:000357738800083
ER
PT S
AU Ross, M
Van Kuiken, BE
Strader, ML
Cordones-Hahn, A
Cho, H
Schoenlein, RW
Kim, TK
Khalil, M
AF Ross, Matthew
Van Kuiken, Benjamin E.
Strader, Mathew L.
Cordones-Hahn, Amy
Cho, Hana
Schoenlein, Robert W.
Kim, Tae Kyu
Khalil, Munira
BE Yamanouchi, I
Cundiff, S
DeVivieRiedle, R
KuwataGonokami, M
DiMauro, L
TI Excited State Structural Dynamics Probed with Time-Resolved Sulfur
K-Edge X-Ray Absorption Spectroscopy
SO ULTRAFAST PHENOMENA XIX
SE Springer Proceedings in Physics
LA English
DT Proceedings Paper
CT 19th International Conference on Ultrafast Phenomena
CY JUL 07-11, 2014
CL Okinawa, JAPAN
SP Japan Intense Light Field Sci Soc, Ctr Ultrafast Intense Laser Sci, Univ Tokyo
AB Time-Resolved X-ray absorption spectroscopy at the sulfur K-edge (similar to 2.4 keV) is used to monitor structural dynamics following excited state proton transfer in an organosulfur molecule. The timescales of electronic structural relaxation are solvent dependent.
C1 [Ross, Matthew; Van Kuiken, Benjamin E.; Khalil, Munira] Univ Washington, Dept Chem, Seattle, WA 98195 USA.
[Strader, Mathew L.] SLAC Natl Accelerator Lab, Menlo Pk, CA USA.
[Cordones-Hahn, Amy; Cho, Hana; Schoenlein, Robert W.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Kim, Tae Kyu] Pusan Natl Univ, Dept Chem, Busan, South Korea.
RP Khalil, M (reprint author), Univ Washington, Dept Chem, Seattle, WA 98195 USA.
EM mkhalil@chem.washington.edu
NR 4
TC 1
Z9 1
U1 2
U2 5
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0930-8989
BN 978-3-319-13242-6; 978-3-319-13241-9
J9 SPRINGER PROC PHYS
PY 2015
VL 162
BP 403
EP 406
DI 10.1007/978-3-319-13242-6_98
PG 4
WC Physics, Applied
SC Physics
GA BD0UY
UT WOS:000357738800098
ER
PT S
AU Oliver, TAA
Lewis, NHC
Fleming, GR
AF Oliver, Thomas A. A.
Lewis, Nicholas H. C.
Fleming, Graham R.
BE Yamanouchi, I
Cundiff, S
DeVivieRiedle, R
KuwataGonokami, M
DiMauro, L
TI Following the Excited State Dynamics of beta-Apo-8 '-Carotenal with
Two-Dimensional Electronic-Vibrational Spectroscopy
SO ULTRAFAST PHENOMENA XIX
SE Springer Proceedings in Physics
LA English
DT Proceedings Paper
CT 19th International Conference on Ultrafast Phenomena
CY JUL 07-11, 2014
CL Okinawa, JAPAN
SP Japan Intense Light Field Sci Soc, Ctr Ultrafast Intense Laser Sci, Univ Tokyo
ID PULSE-SHAPER
AB Two-dimensional electronic-vibrational spectroscopy is used to study the excited state relaxation of beta-apo-8'-carotenal in acetonitrile solution. This new multidimensional spectroscopy technique is unique in its ability to directly follow the electronic and nuclear degrees of freedom simultaneously.
C1 [Oliver, Thomas A. A.; Lewis, Nicholas H. C.; Fleming, Graham R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Oliver, Thomas A. A.; Lewis, Nicholas H. C.; Fleming, Graham R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Fleming, GR (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM grfleming@lbl.gov
NR 7
TC 0
Z9 0
U1 1
U2 2
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0930-8989
BN 978-3-319-13242-6; 978-3-319-13241-9
J9 SPRINGER PROC PHYS
PY 2015
VL 162
BP 444
EP 447
DI 10.1007/978-3-319-13242-6_108
PG 4
WC Physics, Applied
SC Physics
GA BD0UY
UT WOS:000357738800108
ER
PT S
AU Monahan, DM
Whaley-Mayda, LV
Ishizaki, A
Fleming, GR
AF Monahan, Daniele M.
Whaley-Mayda, Lukas V.
Ishizaki, Akihito
Fleming, Graham R.
BE Yamanouchi, I
Cundiff, S
DeVivieRiedle, R
KuwataGonokami, M
DiMauro, L
TI Interpreting Oscillations in Numerically Exact Simulations of 2D
Electronic Spectra
SO ULTRAFAST PHENOMENA XIX
SE Springer Proceedings in Physics
LA English
DT Proceedings Paper
CT 19th International Conference on Ultrafast Phenomena
CY JUL 07-11, 2014
CL Okinawa, JAPAN
SP Japan Intense Light Field Sci Soc, Ctr Ultrafast Intense Laser Sci, Univ Tokyo
ID COHERENCE
AB 2D electronic spectroscopy signals are simulated with accurate hierarchy method treatment of an electronic heterodimer coupled to a bath and local vibrations. We examine the effect of vibrations on the correspondence between exciton and population dynamics.
C1 [Monahan, Daniele M.; Whaley-Mayda, Lukas V.; Fleming, Graham R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Monahan, Daniele M.; Whaley-Mayda, Lukas V.; Fleming, Graham R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Ishizaki, Akihito] Natl Inst Nat Sci, Inst Mol Sci, Okazaki, Aichi 4448585, Japan.
RP Fleming, GR (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM grfleming@lbl.gov
NR 6
TC 0
Z9 0
U1 1
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0930-8989
BN 978-3-319-13242-6; 978-3-319-13241-9
J9 SPRINGER PROC PHYS
PY 2015
VL 162
BP 553
EP 556
DI 10.1007/978-3-319-13242-6_135
PG 4
WC Physics, Applied
SC Physics
GA BD0UY
UT WOS:000357738800135
ER
PT S
AU Hickstein, DD
Dollar, F
Ellis, JL
Gaffney, JA
Foord, ME
Petrov, GM
Palm, BB
Ding, CY
Keister, KE
Libby, SB
Jimenez, JL
Kapteyn, HC
Murnane, MM
Xiong, W
AF Hickstein, Daniel D.
Dollar, Franklin
Ellis, Jennifer L.
Gaffney, Jim A.
Foord, Mark E.
Petrov, George M.
Palm, Brett B.
Ding, Chengyuan
Keister, K. Ellen
Libby, Stephen B.
Jimenez, Jose L.
Kapteyn, Henry C.
Murnane, Margaret M.
Xiong, Wei
BE Yamanouchi, I
Cundiff, S
DeVivieRiedle, R
KuwataGonokami, M
DiMauro, L
TI Single Nanoparticles and Nanoplasmas in Femtosecond Laser Fields
SO ULTRAFAST PHENOMENA XIX
SE Springer Proceedings in Physics
LA English
DT Proceedings Paper
CT 19th International Conference on Ultrafast Phenomena
CY JUL 07-11, 2014
CL Okinawa, JAPAN
SP Japan Intense Light Field Sci Soc, Ctr Ultrafast Intense Laser Sci, Univ Tokyo
ID PHOTOELECTRON
AB We combine an aerodynamic lens with a velocity-map-imaging spectrometer to make the first measurements of ultrafast dynamics in individual nanoplasmas. By using two laser pulses (800 and 400 nm) delayed by several picoseconds, we find that we can generate and control shock wave propagation in nanoplasmas, confirming a decade of theoretical predictions. Additionally, we observe pronounced asymmetries in the photoion angular distributions resulting from nanoparticles of different structure and composition, demonstrating the ability to observe nanoscale light absorption at laser intensities near the damage threshold.
C1 [Hickstein, Daniel D.; Dollar, Franklin; Ellis, Jennifer L.; Ding, Chengyuan; Keister, K. Ellen; Kapteyn, Henry C.; Murnane, Margaret M.; Xiong, Wei] Univ Colorado, JILA, Boulder, CO 80309 USA.
[Hickstein, Daniel D.; Dollar, Franklin; Ellis, Jennifer L.; Ding, Chengyuan; Keister, K. Ellen; Kapteyn, Henry C.; Murnane, Margaret M.; Xiong, Wei] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Gaffney, Jim A.; Foord, Mark E.; Libby, Stephen B.] Lawrence Livermore Natl Lab, Div Phys, Phys & Life Sci, Livermore, CA 94550 USA.
[Petrov, George M.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Palm, Brett B.; Jimenez, Jose L.] Univ Colorado, Dept Chem, Boulder, CO 80309 USA.
[Palm, Brett B.; Jimenez, Jose L.] CIRES, Boulder, CO 80309 USA.
RP Hickstein, DD (reprint author), Univ Colorado, JILA, Boulder, CO 80309 USA.
EM daniel.hickstein@colorado.edu
RI Jimenez, Jose/A-5294-2008;
OI Jimenez, Jose/0000-0001-6203-1847; Gaffney, Jim/0000-0002-2408-0047
NR 6
TC 0
Z9 0
U1 0
U2 6
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0930-8989
BN 978-3-319-13242-6; 978-3-319-13241-9
J9 SPRINGER PROC PHYS
PY 2015
VL 162
BP 702
EP 706
DI 10.1007/978-3-319-13242-6_173
PG 5
WC Physics, Applied
SC Physics
GA BD0UY
UT WOS:000357738800173
ER
PT J
AU Turner, AJ
Jacob, DJ
Wecht, KJ
Maasakkers, JD
Lundgren, E
Andrews, AE
Biraud, SC
Boesch, H
Bowman, KW
Deutscher, NM
Dubey, MK
Griffith, DWT
Hase, F
Kuze, A
Notholt, J
Ohyama, H
Parker, R
Payne, VH
Sussmann, R
Sweeney, C
Velazco, VA
Warneke, T
Wennberg, PO
Wunch, D
AF Turner, A. J.
Jacob, D. J.
Wecht, K. J.
Maasakkers, J. D.
Lundgren, E.
Andrews, A. E.
Biraud, S. C.
Boesch, H.
Bowman, K. W.
Deutscher, N. M.
Dubey, M. K.
Griffith, D. W. T.
Hase, F.
Kuze, A.
Notholt, J.
Ohyama, H.
Parker, R.
Payne, V. H.
Sussmann, R.
Sweeney, C.
Velazco, V. A.
Warneke, T.
Wennberg, P. O.
Wunch, D.
TI Estimating global and North American methane emissions with high spatial
resolution using GOSAT satellite data
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID COLUMN OBSERVING NETWORK; IN-SITU MEASUREMENTS; UNITED-STATES; SURFACE
MEASUREMENTS; NITROGEN DEPOSITION; ATMOSPHERIC METHANE; AIRCRAFT
CAMPAIGN; GREENHOUSE GASES; MOLE FRACTION; AVERAGED CH4
AB We use 2009-2011 space-borne methane observations from the Greenhouse Gases Observing SATellite (GOSAT) to estimate global and North American methane emissions with 4A degrees x 5A degrees and up to 50 km x 50 km spatial resolution, respectively. GEOS-Chem and GOSAT data are first evaluated with atmospheric methane observations from surface and tower networks (NOAA/ESRL, TCCON) and aircraft (NOAA/ESRL, HIPPO), using the GEOS-Chem chemical transport model as a platform to facilitate comparison of GOSAT with in situ data. This identifies a high-latitude bias between the GOSAT data and GEOS-Chem that we correct via quadratic regression. Our global adjoint-based inversion yields a total methane source of 539 Tg a(-1) with some important regional corrections to the EDGARv4.2 inventory used as a prior. Results serve as dynamic boundary conditions for an analytical inversion of North American methane emissions using radial basis functions to achieve high resolution of large sources and provide error characterization. We infer a US anthropogenic methane source of 40.2-42.7 Tg a(-1), as compared to 24.9-27.0 Tg a(-1) in the EDGAR and EPA bottom-up inventories, and 30.0-44.5 Tg a(-1) in recent inverse studies. Our estimate is supported by independent surface and aircraft data and by previous inverse studies for California. We find that the emissions are highest in the southern-central US, the Central Valley of California, and Florida wetlands; large isolated point sources such as the US Four Corners also contribute. Using prior information on source locations, we attribute 29-44 % of US anthropogenic methane emissions to livestock, 22-31 % to oil/gas, 20 % to landfills/wastewater, and 11-15 % to coal. Wetlands contribute an additional 9.0-10.1 Tg a(-1).
C1 [Turner, A. J.; Jacob, D. J.; Maasakkers, J. D.; Lundgren, E.] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA.
[Jacob, D. J.; Wecht, K. J.] Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA.
[Andrews, A. E.; Sweeney, C.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Biraud, S. C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Boesch, H.; Parker, R.] Univ Leicester, Dept Phys & Astron, Earth Observat Sci Grp, Leicester LE1 7RH, Leics, England.
[Boesch, H.; Parker, R.] Univ Leicester, Natl Ctr Earth Observat, Leicester, Leics, England.
[Bowman, K. W.; Payne, V. H.] CALTECH, Jet Prop Lab, Pasadena, CA USA.
[Deutscher, N. M.; Griffith, D. W. T.; Velazco, V. A.] Univ Wollongong, Ctr Atmospher Chem, Wollongong, NSW 2522, Australia.
[Deutscher, N. M.; Notholt, J.; Warneke, T.] Univ Bremen, Inst Environm Phys, D-28359 Bremen, Germany.
[Dubey, M. K.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Hase, F.] Karlsruhe Inst Technol, IMK ASF, D-76021 Karlsruhe, Germany.
[Kuze, A.; Ohyama, H.] Japan Aerosp Explorat Agcy, Tsukuba, Ibaraki, Japan.
[Ohyama, H.] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan.
[Sussmann, R.] Karlsruhe Inst Technol, IMK IFU, Garmisch Partenkirchen, Germany.
[Sweeney, C.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Wennberg, P. O.; Wunch, D.] CALTECH, Pasadena, CA 91125 USA.
RP Turner, AJ (reprint author), Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA.
EM aturner@fas.harvard.edu
RI Sussmann, Ralf/K-3999-2012; Dubey, Manvendra/E-3949-2010; Notholt,
Justus/P-4520-2016; Velazco, Voltaire/H-2280-2011; Boesch,
Hartmut/G-6021-2012; Biraud, Sebastien/M-5267-2013; Chem,
GEOS/C-5595-2014; KUZE, AKIHIKO/J-2074-2016
OI Dubey, Manvendra/0000-0002-3492-790X; Notholt,
Justus/0000-0002-3324-885X; Velazco, Voltaire/0000-0002-1376-438X;
Biraud, Sebastien/0000-0001-7697-933X; KUZE, AKIHIKO/0000-0001-5415-3377
FU NASA Carbon Monitoring System; Department of Energy (DOE) Computational
Science Graduate Fellowship (CSGF); California Energy Commission's
Natural Gas Program [DE-AC02-05CH11231]; NASA; UK National Centre for
Earth Observation (NCEO); ESA Climate Change Initiative (ESA GHG-CCI);
NASA [NNX11AG01G, NAG5-12247, NNG05-GD07G]; NASA Orbiting Carbon
Observatory Program; EU project InGOS; EU project ICOS-INWIRE; Senate of
Bremen; Australian Research Council [DP0879468, LP0562346]; EC within
the INGOS project; New Zealand Foundation of Research Science and
Technology [CO1X0204, CO1X0703, CO1X0406]; NIWA's Atmosphere Research
Programme 3 [2011/13]; LANL-LDRD [20110081DR]; Environment Research and
Technology Development Fund of the Ministry of the Environment, Japan
[A-1102]; Office of Biological and Environmental Research of the US
Department of Energy as part of the Atmospheric Radiation Measurement
Program (ARM), ARM Aerial Facility [DE-AC02-05CH11231]; Terrestrial
Ecosystem Science Program
FX This work was supported by the NASA Carbon Monitoring System and a
Department of Energy (DOE) Computational Science Graduate Fellowship
(CSGF) to A. J. Turner. We also thank the Harvard SEAS Academic
Computing center for access to computing resources. Special thanks to S.
C. Wofsy for providing HIPPO aircraft data, and J. B. Miller and M.
Parker for providing NOAA/ESRL Global Greenhouse Gas Reference Network
data. We thank M. L. Fischer and the CALGEM team at LBNL for their
contributions to data collection at tower sites in central California as
supported by the California Energy Commission's Natural Gas Program
through a grant to the US Department of Energy under contract no.
DE-AC02-05CH11231. Part of this work was carried out at the Jet
Propulsion Laboratory, California Institute of Technology, under a
contract with NASA. R. Parker and H. Boesch acknowledge funding from the
UK National Centre for Earth Observation (NCEO) and the ESA Climate
Change Initiative (ESA GHG-CCI). TCCON data at Park Falls, Lamont, and
JPL is funded by NASA grants NNX11AG01G, NAG5-12247 and NNG05-GD07G, and
the NASA Orbiting Carbon Observatory Program. We are grateful to the DOE
ARM program for technical support in Lamont and J. Ayers for technical
support in Park Falls. TCCON data from Bialystok and Bremen is funded by
the EU projects InGOS and ICOS-INWIRE, and by the Senate of Bremen.
TCCON data from Darwin is funded by NASA grants NAG5-12247 and
NNG05-GD07G and the Australian Research Council, DP0879468 and
LP0562346. We are grateful to the DOE ARM program for technical support
in Darwin. Garmisch TCCON work has been performed as part of the ESA
GHG-cci project via subcontract with the University of Bremen. In
addition, we acknowledge funding by the EC within the INGOS project.
From 2004 to 2011 the Lauder TCCON program was funded by the New Zealand
Foundation of Research Science and Technology contracts CO1X0204,
CO1X0703 and CO1X0406. Since 2011, the program has been funded by NIWA's
Atmosphere Research Programme 3 (2011/13 Statement of Corporate Intent).
M. K. Dubey thanks LANL-LDRD for funding 20110081DR for monitoring at
Four Corners. We thank B. Henderson (LANL) for help with retrievals at
Four Corners. A part of work at JAXA was supported by the Environment
Research and Technology Development Fund (A-1102) of the Ministry of the
Environment, Japan. Observations collected in the Southern Great plains
were supported by the Office of Biological and Environmental Research of
the US Department of Energy under contract no. DE-AC02-05CH11231 as part
of the Atmospheric Radiation Measurement Program (ARM), ARM Aerial
Facility, and Terrestrial Ecosystem Science Program. HIPPO aircraft data
are available at http://hippo.ornl.gov, TCCON data are available at
http://tccon.ornl.gov, and NOAA/ESRL Global Greenhouse Gas Reference
Network data are available at
http://www.esrl.noaa.gov/gmd/ccgg/flask.php.
NR 76
TC 33
Z9 33
U1 12
U2 59
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2015
VL 15
IS 12
BP 7049
EP 7069
DI 10.5194/acp-15-7049-2015
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CL6ZC
UT WOS:000357117500034
ER
PT J
AU Wagner, NL
Brock, CA
Angevine, WM
Beyersdorf, A
Campuzano-Jost, P
Day, D
de Gouw, JA
Diskin, GS
Gordon, TD
Graus, MG
Holloway, JS
Huey, G
Jimenez, JL
Lack, DA
Liao, J
Liu, X
Markovic, MZ
Middlebrook, AM
Mikoviny, T
Peischl, J
Perring, AE
Richardson, MS
Ryerson, TB
Schwarz, JP
Warneke, C
Welti, A
Wisthaler, A
Ziemba, LD
Murphy, DM
AF Wagner, N. L.
Brock, C. A.
Angevine, W. M.
Beyersdorf, A.
Campuzano-Jost, P.
Day, D.
de Gouw, J. A.
Diskin, G. S.
Gordon, T. D.
Graus, M. G.
Holloway, J. S.
Huey, G.
Jimenez, J. L.
Lack, D. A.
Liao, J.
Liu, X.
Markovic, M. Z.
Middlebrook, A. M.
Mikoviny, T.
Peischl, J.
Perring, A. E.
Richardson, M. S.
Ryerson, T. B.
Schwarz, J. P.
Warneke, C.
Welti, A.
Wisthaler, A.
Ziemba, L. D.
Murphy, D. M.
TI In situ vertical profiles of aerosol extinction, mass, and composition
over the southeast United States during SENEX and SEAC(4)RS:
observations of a modest aerosol enhancement aloft
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID SECONDARY ORGANIC AEROSOL; PARTICULATE MATTER MASS; OPTICAL DEPTH;
SATELLITE-OBSERVATIONS; CARBON-MONOXIDE; CUMULUS CLOUDS; US; ABSORPTION;
PARTICLES; AIRCRAFT
AB Vertical profiles of submicron aerosol from in situ aircraft-based measurements were used to construct aggregate profiles of chemical, microphysical, and optical properties. These vertical profiles were collected over the southeastern United States (SEUS) during the summer of 2013 as part of two separate field studies: the Southeast Nexus (SENEX) study and the Study of Emissions and Atmospheric Composition, Clouds, and Climate Coupling by Regional Surveys (SEAC(4)RS). Shallow cumulus convection was observed during many profiles. These conditions enhance vertical transport of trace gases and aerosol and create a cloudy transition layer on top of the sub-cloud mixed layer. The trace gas and aerosol concentrations in the transition layer were modeled as a mixture with contributions from the mixed layer below and the free troposphere above. The amount of vertical mixing, or entrainment of air from the free troposphere, was quantified using the observed mixing ratio of carbon monoxide (CO). Although the median aerosol mass, extinction, and volume decreased with altitude in the transition layer, they were 10 % larger than expected from vertical mixing alone. This enhancement was likely due to secondary aerosol formation in the transition layer. Although the transition layer enhancements of the particulate sulfate and organic aerosol (OA) were both similar in magnitude, only the enhancement of sulfate was statistically significant. The column integrated extinction, or aerosol optical depth (AOD), was calculated for each individual profile, and the transition layer enhancement of extinction typically contributed less than 10 % to the total AOD. Our measurements and analysis were motivated by two recent studies that have hypothesized an enhanced layer of secondary aerosol aloft to explain the summertime enhancement of AOD (2-3 times greater than winter) over the southeastern United States. The first study attributes the layer aloft to secondary organic aerosol (SOA) while the second study speculates that the layer aloft could be SOA or secondary particulate sulfate. In contrast to these hypotheses, the modest enhancement we observed in the transition layer was not dominated by OA and was not a large fraction of the summertime AOD.
C1 [Wagner, N. L.; Brock, C. A.; Angevine, W. M.; de Gouw, J. A.; Gordon, T. D.; Graus, M. G.; Holloway, J. S.; Lack, D. A.; Liao, J.; Markovic, M. Z.; Middlebrook, A. M.; Peischl, J.; Perring, A. E.; Richardson, M. S.; Ryerson, T. B.; Schwarz, J. P.; Warneke, C.; Welti, A.; Murphy, D. M.] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA.
[Wagner, N. L.; Angevine, W. M.; Campuzano-Jost, P.; Day, D.; de Gouw, J. A.; Gordon, T. D.; Graus, M. G.; Holloway, J. S.; Jimenez, J. L.; Lack, D. A.; Liao, J.; Markovic, M. Z.; Peischl, J.; Perring, A. E.; Richardson, M. S.; Schwarz, J. P.; Warneke, C.; Welti, A.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Beyersdorf, A.; Diskin, G. S.; Ziemba, L. D.] NASA, Langley Res Ctr, Hampton, VA 23681 USA.
[Campuzano-Jost, P.; Day, D.; Jimenez, J. L.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Huey, G.; Liu, X.] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA.
[Mikoviny, T.] Oak Ridge Associated Univ, Oak Ridge, TN USA.
[Welti, A.] Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland.
[Wisthaler, A.] Univ Innsbruck, Inst Ion Phys & Appl Phys, A-6020 Innsbruck, Austria.
RP Wagner, NL (reprint author), NOAA, Earth Syst Res Lab, 325 Broadway, Boulder, CO 80305 USA.
EM nick.wagner@noaa.gov
RI schwarz, joshua/G-4556-2013; Murphy, Daniel/J-4357-2012; Manager, CSD
Publications/B-2789-2015; Perring, Anne/G-4597-2013; Wagner,
Nicholas/E-7437-2010; Lack, Daniel/I-9053-2012; Ryerson,
Tom/C-9611-2009; Peischl, Jeff/E-7454-2010; Angevine, Wayne/H-9849-2013;
Graus, Martin/E-7546-2010; de Gouw, Joost/A-9675-2008; Jimenez,
Jose/A-5294-2008; Gordon, Timothy/H-9497-2013; Warneke,
Carsten/E-7174-2010; Middlebrook, Ann/E-4831-2011
OI schwarz, joshua/0000-0002-9123-2223; Murphy, Daniel/0000-0002-8091-7235;
Perring, Anne/0000-0003-2231-7503; Peischl, Jeff/0000-0002-9320-7101;
Angevine, Wayne/0000-0002-8021-7116; Graus, Martin/0000-0002-2025-9242;
de Gouw, Joost/0000-0002-0385-1826; Jimenez, Jose/0000-0001-6203-1847;
Gordon, Timothy/0000-0002-5128-9532; Middlebrook,
Ann/0000-0002-2984-6304
FU BMVIT/FFG-ALR of the Austrian Space Application Program (ASAP 8)
[833451]; NASA [NNX12AC03G]; NSF [AGS-1243354]; NOAA's Health of the
Atmosphere Program and Atmospheric Chemistry, Carbon Cycles, and Climate
Program; NASA's Radiation Sciences Program [NNH12AT31I]
FX We thank the NOAA WP-3D and NASA DC-8 scientists, flight crews, and
support staff for their outstanding efforts in the field. In particular
we would like to thank M. K. Trainer for flight planning during SENEX.
Isoprene measurements during SEAC4RS were supported by
BMVIT/FFG-ALR in the frame of the Austrian Space Application Program
(ASAP 8, project 833451). PCJ, DAD, and JLJ measured aerosol mass and
composition during SEAC4RS and were supported by NASA
NNX12AC03G and NSF AGS-1243354. Additionally, the SEARCH aerosol network
provided surface measurement used in overflight comparisons, and we
thank Brent Holben and Brad Gingrey and their staff for establishing and
maintaining the Centreville AERONET sites used in this investigation.
This analysis is funded by the NOAA's Health of the Atmosphere Program
and Atmospheric Chemistry, Carbon Cycles, and Climate Program and by
NASA's Radiation Sciences Program under Award NNH12AT31I.
NR 65
TC 12
Z9 12
U1 5
U2 32
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2015
VL 15
IS 12
BP 7085
EP 7102
DI 10.5194/acp-15-7085-2015
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CL6ZC
UT WOS:000357117500036
ER
PT J
AU Smith, KE
Gerakines, PA
Callahan, MP
AF Smith, Karen E.
Gerakines, Perry A.
Callahan, Michael P.
TI Metabolic precursors in astrophysical ice analogs: implications for
meteorites and comets
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID AMINO-ACIDS; MURCHISON METEORITE; DIPHOSPHOPYRIDINE NUCLEOTIDE;
DEUTERIUM ENRICHMENT; IRRADIATION; BENZENE; BIOSYNTHESIS; HETEROCYCLES;
MATTER
AB We report the synthesis of complex organic compounds including nicotinic and quinolinic acid, two members involved in the nicotinamide adenine dinucleotide (NAD) biosynthetic pathway, in irradiated astrophysical ice analogs. If delivered to Earth by meteorites and comets, these compounds may have contributed to the origin and early evolution of life.
C1 [Smith, Karen E.] NASA, Goddard Space Flight Ctr, Postdoctoral Program Administered, Oak Ridge Associated Univ, Greenbelt, MD 20771 USA.
[Gerakines, Perry A.; Callahan, Michael P.] NASA, Goddard Space Flight Ctr, Astrochem Lab, Greenbelt, MD 20771 USA.
[Gerakines, Perry A.; Callahan, Michael P.] NASA, Goddard Space Flight Ctr, Goddard Ctr Astrobiol, Greenbelt, MD 20771 USA.
RP Smith, KE (reprint author), NASA, Goddard Space Flight Ctr, Postdoctoral Program Administered, Oak Ridge Associated Univ, Greenbelt, MD 20771 USA.
EM karen.e.smith@nasa.gov
RI Gerakines, Perry/D-2226-2012
OI Gerakines, Perry/0000-0002-9667-5904
FU NASA Postdoctoral Program Fellowship; NASA; NASA Astrobiology Institute
via Goddard Center for Astrobiology; NASA Cosmochemistry Program
FX The authors thank T. Ward, E. Gerashchenko, and S. Brown for operation
of the proton accelerator, M. Loeffler for assistance with some
experimental measurements and helpful discussions, R. Hudson for helpful
discussions, and three anonymous reviewers. This work was supported by a
NASA Postdoctoral Program Fellowship administered by Oak Ridge
Associated Universities through a contract with NASA, the NASA
Astrobiology Institute via the Goddard Center for Astrobiology, and the
NASA Cosmochemistry Program.
NR 26
TC 2
Z9 2
U1 2
U2 17
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 59
BP 11787
EP 11790
DI 10.1039/c5cc03272e
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CM6NF
UT WOS:000357804800010
PM 26107786
ER
PT J
AU Wang, B
Sun, R
Gunbas, DD
Zhang, H
Grozema, FC
Xiao, K
Jin, S
AF Wang, B.
Sun, R.
Gunbas, D. D.
Zhang, H.
Grozema, F. C.
Xiao, K.
Jin, S.
TI A bundled-stack discotic columnar liquid crystalline phase with
inter-stack electronic coupling
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID BEARING OLIGOSILOXANE CHAINS; SELF-ORGANIZATION; PERYLENE DIIMIDES;
PI-STACKS; DERIVATIVES; MOBILITY; ASSEMBLIES; CHARGE
AB The first compound capable of forming a bundled-stack discotic columnar liquid crystalline (BSDCLC) phase was designed and synthesized. The unique perylene anhydride inter-stack interaction was found to be the key to the formation of the BSDCLC structure and inter-stack electronic coupling (ISEC).
C1 [Wang, B.; Sun, R.; Zhang, H.; Jin, S.] CUNY Coll Staten Isl, Dept Chem, Ctr Engineered Polymer Mat, Staten Isl, NY 10314 USA.
[Wang, B.; Sun, R.; Zhang, H.; Jin, S.] CUNY, Grad Ctr, Staten Isl, NY 10314 USA.
[Gunbas, D. D.; Grozema, F. C.] Delft Univ Technol, DelftChemTech, NL-2628 BL Delft, Netherlands.
[Xiao, K.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci Div, Oak Ridge, TN 37831 USA.
RP Jin, S (reprint author), CUNY Coll Staten Isl, Dept Chem, Ctr Engineered Polymer Mat, Staten Isl, NY 10314 USA.
EM shi.jin@csi.cuny.edu
RI Grozema, Ferdinand/A-3747-2013
OI Grozema, Ferdinand/0000-0002-4375-799X
FU acquisition of SAXS/WAXS system [CHE-0723028]; PSC-CUNY grant; Joint
Solar Programme (JSP) of Foundation for Scientific Research on Matter
(FOM), Netherlands Organization for Scientific Research (NWO); European
Research Council under European Union's Seventh Framework Programme
(FP7)/ERC [240299]
FX NSF is gratefully acknowledged for funding the acquisition of the
SAXS/WAXS system through Award CHE-0723028. This research was supported
by PSC-CUNY grant and the Joint Solar Programme (JSP) of the Foundation
for Scientific Research on Matter (FOM), which is part of the
Netherlands Organization for Scientific Research (NWO). The research
leading to these results has received funding from the European Research
Council under the European Union's Seventh Framework Programme
(FP7/2007-2013)/ERC Grant agreement no. 240299. Part of the research was
conducted at the Center for Nanophase Materials Sciences, which is a DOE
Office of Science User Facility.
NR 32
TC 1
Z9 1
U1 1
U2 11
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 59
BP 11837
EP 11840
DI 10.1039/c5cc03789a
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CM6NF
UT WOS:000357804800023
PM 26108235
ER
PT J
AU Chang, CJ
Gunnlaugsson, T
James, TD
AF Chang, Christopher J.
Gunnlaugsson, Thorfinnur
James, Tony D.
TI Imaging agents
SO CHEMICAL SOCIETY REVIEWS
LA English
DT Editorial Material
C1 [Chang, Christopher J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Helen Wills Neurosci Inst, Howard Hughes Med Inst,Dept Chem, Berkeley, CA 94720 USA.
[Chang, Christopher J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Helen Wills Neurosci Inst, Howard Hughes Med Inst,Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Gunnlaugsson, Thorfinnur] Univ Dublin, Trinity Biomed Sci Inst, Trinity Coll Dublin, Sch Chem, Dublin 2, Ireland.
[James, Tony D.] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England.
RP Chang, CJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Helen Wills Neurosci Inst, Howard Hughes Med Inst,Dept Chem, Berkeley, CA 94720 USA.
EM chrischang@berkeley.edu; gunnlaut@tcd.ie; t.d.james@bath.ac.uk
RI James, Tony/B-5125-2009;
OI James, Tony/0000-0002-4095-2191; Gunnlaugsson,
Thorfinnur/0000-0003-4814-6853
FU Howard Hughes Medical Institute
NR 10
TC 13
Z9 13
U1 3
U2 18
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0306-0012
EI 1460-4744
J9 CHEM SOC REV
JI Chem. Soc. Rev.
PY 2015
VL 44
IS 14
BP 4484
EP 4486
DI 10.1039/c5cs90065d
PG 3
WC Chemistry, Multidisciplinary
SC Chemistry
GA CM4YA
UT WOS:000357691200001
PM 26107987
ER
PT J
AU Das, AK
Engelhard, MH
Lense, S
Roberts, JAS
Bullock, RM
AF Das, Atanu K.
Engelhard, Mark H.
Lense, Sheri
Roberts, John A. S.
Bullock, R. Morris
TI Covalent attachment of diphosphine ligands to glassy carbon electrodes
via Cu-catalyzed alkyne-azide cycloaddition. Metallation with Ni(II)
SO DALTON TRANSACTIONS
LA English
DT Article
ID H-2 PRODUCTION; HYDROGEN-PRODUCTION; CONDUCTIVE DIAMOND; WATER
ELECTROLYSIS; CLICK CHEMISTRY; ELECTROCATALYSTS; SURFACES; ACETONITRILE;
COMPLEXES; OXIDATION
AB Covalent tethering of (P2N2C6H4C=CH)-N-Ph ligands ((P2NC26H4C=CH)-N-Ph = 1,5-di-(4-ethynylphenyl)-3,7-diphenyl-1,5-diaza-3,7-diphosphacyclooctane) to planar, azide-terminated glassy carbon electrode surfaces has been accomplished using a CuI-catalyzed alkyne-azide cycloaddition (CuAAC) coupling reaction, using a BH3 <- P protection-deprotection strategy. Deprotected, surface-confined ligands were metallated using [Ni-II(MeCN)(6)](BF4)(2). X-ray photoelectron spectroscopic measurements demonstrate that metallation introduced 1.3 equivalents Ni-II per diphosphine onto the electrode surface. Exposure of the surface to a second diphosphine ligand, (P2N2Ph)-N-Ph, resulted in the removal of Ni from the surface. Protection, coupling, deprotection, and metallation conditions were optimized using solution-phase model systems, with benzyl azide as a model for the azide-terminated carbon surface; these reactions generate a [Ni-II(diphosphine)(2)](2+) complex.
C1 [Das, Atanu K.; Lense, Sheri; Roberts, John A. S.; Bullock, R. Morris] Pacific NW Natl Lab, Ctr Mol Electroanal, Div Phys Sci, Richland, WA 99352 USA.
[Engelhard, Mark H.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Roberts, JAS (reprint author), Pacific NW Natl Lab, Ctr Mol Electroanal, Div Phys Sci, POB 999,K2-57, Richland, WA 99352 USA.
EM john.roberts@recsilicon.com; morris.bullock@pnnl.gov
RI Bullock, R. Morris/L-6802-2016;
OI Bullock, R. Morris/0000-0001-6306-4851; Engelhard,
Mark/0000-0002-5543-0812
FU Center for Molecular Electrocatalysis, an Energy Frontier Research
Center - U.S. Department of Energy, Office of Science, Office of Basic
Energy Sciences; U.S. Department of Energy, Office of Science, Office of
Biological and Environmental Research; Early Career Research Program
through the U.S. Department of Energy, Office of Science
FX This research was supported as part of the Center for Molecular
Electrocatalysis, an Energy Frontier Research Center funded by the U.S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences. The XPS measurements were performed at the Environmental
Molecular Sciences Laboratory (EMSL), a national scientific user
facility sponsored by the U.S. Department of Energy, Office of Science,
Office of Biological and Environmental Research and located at Pacific
Northwest National Laboratory. The X-ray crystal structure analysis was
carried out by S.L., who was supported by a grant to Wendy J. Shaw from
the Early Career Research Program through the U.S. Department of Energy,
Office of Science. We thank Christopher Zall for helpful discussions.
Pacific Northwest National Laboratory is operated by Battelle for the
U.S. Department of Energy.
NR 58
TC 3
Z9 3
U1 2
U2 8
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 27
BP 12225
EP 12233
DI 10.1039/c5dt00162e
PG 9
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CM0VY
UT WOS:000357398200022
PM 25811536
ER
PT J
AU Davenport, TC
Tilley, TD
AF Davenport, T. C.
Tilley, T. D.
TI Dinuclear first-row transition metal complexes with a
naphthyridine-based dinucleating ligand
SO DALTON TRANSACTIONS
LA English
DT Article
ID CRYSTAL-STRUCTURE; WATER-OXIDATION; ACTIVE-SITES; CATALYSIS; CENTERS;
1,8-NAPHTHYRIDINE; HEMERYTHRIN; DIOXYGEN; DESIGN; DIMER
AB A series of dinuclear and tetranuclear first-row transition metal complexes were synthesized with the dinucleating ligand 2,7-bis(di(2-pyridyl) fluoromethyl)-1,8-naphthyridine (DPFN). The coordination pocket and rigidity of the DPFN ligand enforces pseudo-octahedral geometries about the metal centers that contain chloro, hydroxo, and aqua bridging ligands forming a "diamond" shaped configuration with metal-metal distances varying from 2.7826(5) to 3.2410(11) angstrom. Each metal center in the dinuclear complexes has an additional open coordination site that accommodates terminal ligands in a syn geometry of particular interest in catalyst design. The complexes are characterized by electronic spectroscopy, electrochemistry and potentiometric titration methods.
C1 [Davenport, T. C.; Tilley, T. D.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Davenport, T. C.; Tilley, T. D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Tilley, TD (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM tdtilley@berkeley.edu
FU National Science Foundation; University of California Chancellor's
Fellowship; Office of Energy Research, Office of Basic Energy Sciences,
Chemical Sciences Division, of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX Support for T.C.D. was provided by a National Science Foundation
Graduate Research Fellowship and a University of California Chancellor's
Fellowship. This work was supported by the Director, Office of Energy
Research, Office of Basic Energy Sciences, Chemical Sciences Division,
of the U.S. Department of Energy under contract DE-AC02-05CH11231.
NR 43
TC 5
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U1 4
U2 20
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 27
BP 12244
EP 12255
DI 10.1039/c4dt02727b
PG 12
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CM0VY
UT WOS:000357398200024
PM 25420206
ER
PT S
AU Benmore, CJ
AF Benmore, C. J.
BE Templeton, AC
Byrn, SR
Haskell, RJ
Prisinzano, TE
TI Advanced X-Ray Analytical Methods to Understand Structure, Properties,
and Risk
SO DISCOVERING AND DEVELOPING MOLECULES WITH OPTIMAL DRUG-LIKE PROPERTIES
SE AAPS Advances in the Pharmaceutical Sciences Series
LA English
DT Article; Book Chapter
ID AMORPHOUS PHARMACEUTICAL SOLIDS; ITRACONAZOLE; DIFFRACTION; ABSORPTION
C1 Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Lemont, IL 60439 USA.
RP Benmore, CJ (reprint author), Argonne Natl Lab, Adv Photon Source, Xray Sci Div, 9700S Cass Ave, Lemont, IL 60439 USA.
EM benmore@anl.gov
OI Benmore, Chris/0000-0001-7007-7749
NR 33
TC 0
Z9 0
U1 0
U2 1
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
SN 2210-7371
BN 978-1-4939-1399-2; 978-1-4939-1398-5
J9 AAPS ADV PHARM SCI
PY 2015
VL 15
BP 263
EP 283
DI 10.1007/978-1-4939-1399-2_9
D2 10.1007/978-1-4939-1399-2
PG 21
WC Pharmacology & Pharmacy
SC Pharmacology & Pharmacy
GA BD0UK
UT WOS:000357719000009
ER
PT S
AU Harding, TH
Rash, CE
McLean, WE
Martin, JS
AF Harding, Thomas H.
Rash, Clarence E.
McLean, William E.
Martin, John S.
BE Desjardins, DD
Marasco, PL
Sarma, KR
Havig, PR
Browne, MP
Melzer, JE
TI Impact of human factors, crashworthiness and optical performance design
requirements on helmet-mounted display development from the 1970s to the
present
SO DISPLAY TECHNOLOGIES AND APPLICATIONS FOR DEFENSE, SECURITY, AND
AVIONICS IX; AND HEAD- AND HELMET-MOUNTED DISPLAYS XX
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Display Technologies and Applications for Defense,
Security, and Avionics IX and Head- and Helmet-Mounted Displays XX
CY APR 21-23, 2015
CL Baltimore, MD
SP SPIE
DE helmet-mounted display (HMD); human factors engineering (HFE); design
issues; human factors engineering (HFE); crash-worthiness;
center-of-mass (CM); visual performance
AB Driven by the operational needs of modern warfare, the helmet-mounted display (HMD) has matured from a revolutionary, but impractical, World War I era idea for an infantry marksman's helmet-mounted weapon delivery system to a sophisticated and ubiquitous display and targeting system that dominates current night warfighting operations. One of the most demanding applications for HMD designs has been in Army rotary-wing aviation, where HMDs offer greater direct access to visual information and increased situational awareness in an operational environment where information availability is critical on a second-to-second basis. However, over the past 40 years of extensive HMD development, a myriad of crashworthiness, optical, and human factors issues have both frustrated and challenged designers. While it may be difficult to attain a full consensus on which are the most important HMD design factors, certainly head-supported weight (HSW), exit pupil size, field-of-view, image resolution and physical eye relief have been among the most critical. A confounding factor has been the interrelationship between the many design issues, such as early attempts to use non-glass optical elements to lower HSW, but at the cost of image quality, and hence, pilot visual performance. This paper traces how the role of the demanding performance requirements placed on HMDs by the U.S. Army aviation community has impacted the progress of HMD designs towards the Holy Grail of HMD design: a wide field-of-view, high resolution, binocular, full-color, totally crashworthy system.
C1 [Harding, Thomas H.; Martin, John S.] US Army Aeromed Res Lab, Ft Rucker, AL 36362 USA.
[Rash, Clarence E.; McLean, William E.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37831 USA.
RP Harding, TH (reprint author), US Army Aeromed Res Lab, POB 620577, Ft Rucker, AL 36362 USA.
EM Thomas.h.harding.civ@mail.mil
NR 43
TC 0
Z9 0
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-586-5
J9 PROC SPIE
PY 2015
VL 9470
AR 94700U
DI 10.1117/12.2176405
PG 15
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BD0OE
UT WOS:000357466100018
ER
PT S
AU McLean, W
Statz, J
Estes, V
Booms, S
Martin, JS
Harding, T
AF McLean, William
Statz, Jonathan
Estes, Victor
Booms, Shawn
Martin, John S.
Harding, Thomas
BE Desjardins, DD
Marasco, PL
Sarma, KR
Havig, PR
Browne, MP
Melzer, JE
TI Development of a helmet/helmet-display-unit alignment tool (HAT) for the
Apache helmet and display unit
SO DISPLAY TECHNOLOGIES AND APPLICATIONS FOR DEFENSE, SECURITY, AND
AVIONICS IX; AND HEAD- AND HELMET-MOUNTED DISPLAYS XX
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Display Technologies and Applications for Defense,
Security, and Avionics IX; and Head- and Helmet-Mounted Displays XX
CY APR 21-23, 2015
CL Baltimore, MD
SP SPIE
DE helmet display alignment; helmet fitting; Apache AH-64
AB Project Manager (PM) Apache Block III contacted the U.S. Army Aeromedical Research Laboratory (USAARL), Fort Rucker, Alabama, requesting assistance to evaluate and find solutions to a government-developed Helmet Display Unit (HDU) device called the Mock HDU for helmet alignment of the Apache Advanced Integrated Helmet (AAIH). The AAIH is a modified Head Gear Unit No. 56 for Personnel (HGU-56/P) to replace the current Integrated Helmet and Sighting System (IHADSS). The current flashlight-based HDU simulator for helmet/HDU alignment was no longer in production or available. Proper helmet/HDU alignment is critical to position the right eye in the small HDU eye box to obtain image alignment and full field of view (FOV). The initial approach of the PM to developing a helmet/HDU fitting device (Mock HDU) was to duplicate the optical characteristics of the current tactical HDU using less complex optics. However, the results produced questionable alignment, FOV, and distortion issues, with cost and development time overruns. After evaluating the Mock HDU, USAARL proposed a cost effective, less complex optical design called the Helmet/HDU Alignment Tool (HAT). This paper will show the development, components, and evaluations of the HAT compared to the current flashlight HDU simulator device. The laboratory evaluations included FOV measurements and alignment accuracies compared to tactical HDUs. The Apache helmet fitter technicians and Apache pilots compared the HAT to the current flashlight based HDU and ranked the HAT superior.
C1 [Estes, Victor; Booms, Shawn; Martin, John S.; Harding, Thomas] US Army Aeromed Res Lab, Ft Rucker, AL 36362 USA.
[McLean, William; Statz, Jonathan] Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37831 USA.
RP McLean, W (reprint author), Oak Ridge Inst Sci & Educ, POB 117, Oak Ridge, TN 37831 USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-586-5
J9 PROC SPIE
PY 2015
VL 9470
AR 947013
DI 10.1117/12.2176411
PG 11
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BD0OE
UT WOS:000357466100026
ER
PT J
AU Le Quere, C
Moriarty, R
Andrew, RM
Peters, GP
Ciais, P
Friedlingstein, P
Jones, SD
Sitch, S
Tans, P
Arneth, A
Boden, TA
Bopp, L
Bozec, Y
Canadell, JG
Chini, LP
Chevallier, F
Cosca, CE
Harris, I
Hoppema, M
Houghton, RA
House, JI
Jain, AK
Johannessen, T
Kato, E
Keeling, RF
Kitidis, V
Goldewijk, KK
Koven, C
Landa, CS
Landschutzer, P
Lenton, A
Lima, ID
Marland, G
Mathis, JT
Metzl, N
Nojiri, Y
Olsen, A
Ono, T
Peng, S
Peters, W
Pfeil, B
Poulter, B
Raupach, MR
Regnier, P
Rodenbeck, C
Saito, S
Salisbury, JE
Schuster, U
Schwinger, J
Seferian, R
Segschneider, J
Steinhoff, T
Stocker, BD
Sutton, AJ
Takahashi, T
Tilbrook, B
van der Werf, GR
Viovy, N
Wang, YP
Wanninkhof, R
Wiltshire, A
Zeng, N
AF Le Quere, C.
Moriarty, R.
Andrew, R. M.
Peters, G. P.
Ciais, P.
Friedlingstein, P.
Jones, S. D.
Sitch, S.
Tans, P.
Arneth, A.
Boden, T. A.
Bopp, L.
Bozec, Y.
Canadell, J. G.
Chini, L. P.
Chevallier, F.
Cosca, C. E.
Harris, I.
Hoppema, M.
Houghton, R. A.
House, J. I.
Jain, A. K.
Johannessen, T.
Kato, E.
Keeling, R. F.
Kitidis, V.
Goldewijk, K. Klein
Koven, C.
Landa, C. S.
Landschuetzer, P.
Lenton, A.
Lima, I. D.
Marland, G.
Mathis, J. T.
Metzl, N.
Nojiri, Y.
Olsen, A.
Ono, T.
Peng, S.
Peters, W.
Pfeil, B.
Poulter, B.
Raupach, M. R.
Regnier, P.
Roedenbeck, C.
Saito, S.
Salisbury, J. E.
Schuster, U.
Schwinger, J.
Seferian, R.
Segschneider, J.
Steinhoff, T.
Stocker, B. D.
Sutton, A. J.
Takahashi, T.
Tilbrook, B.
van der Werf, G. R.
Viovy, N.
Wang, Y. -P.
Wanninkhof, R.
Wiltshire, A.
Zeng, N.
TI Global carbon budget 2014
SO EARTH SYSTEM SCIENCE DATA
LA English
DT Article
ID LAND-USE CHANGE; ENVIRONMENT SIMULATOR JULES; CO2 FLUX VARIABILITY;
MIXED-LAYER SCHEME; EARTH SYSTEM MODEL; ATMOSPHERIC CO2; DIOXIDE
EMISSIONS; INTERANNUAL VARIABILITY; TERRESTRIAL ECOSYSTEMS;
INTERNATIONAL-TRADE
AB Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere is important to better understand the global carbon cycle, support the development of climate policies, and project future climate change. Here we describe data sets and a methodology to quantify all major components of the global carbon budget, including their uncertainties, based on the combination of a range of data, algorithms, statistics, and model estimates and their interpretation by a broad scientific community. We discuss changes compared to previous estimates, consistency within and among components, alongside methodology and data limitations. CO2 emissions from fossil fuel combustion and cement production (E-FF) are based on energy statistics and cement production data, respectively, while emissions from land-use change (E-LUC), mainly deforestation, are based on combined evidence from land-cover-change data, fire activity associated with deforestation, and models. The global atmospheric CO2 concentration is measured directly and its rate of growth (G(ATM)) is computed from the annual changes in concentration. The mean ocean CO2 sink (S-OCEAN) is based on observations from the 1990s, while the annual anomalies and trends are estimated with ocean models. The variability in S-OCEAN is evaluated with data products based on surveys of ocean CO2 measurements. The global residual terrestrial CO2 sink (S-LAND) is estimated by the difference of the other terms of the global carbon budget and compared to results of independent dynamic global vegetation models forced by observed climate, CO2, and land-cover-change (some including nitrogen-carbon interactions). We compare the mean land and ocean fluxes and their variability to estimates from three atmospheric inverse methods for three broad latitude bands. All uncertainties are reported as +/- 1 sigma, reflecting the current capacity to characterise the annual estimates of each component of the global carbon budget. For the last decade available (2004-2013), E-FF was 8.9 +/- 0.4 GtC yr(-1), E-LUC 0.9 +/- 0.5 GtC yr(-1), G(ATM) 4.3 +/- 0.1 GtC yr(-1), S-OCEAN 2.6 +/- 0.5 GtC yr(-1), and S-LAND 2.9 +/- 0.8 GtC yr(-1). For year 2013 alone, E-FF grew to 9.9 +/- 0.5 GtC yr(-1), 2.3% above 2012, continuing the growth trend in these emissions, E-LUC was 0.9 +/- 0.5 GtC yr(-1), G(ATM) was 5.4 +/- 0.2 GtC yr(-1), S-OCEAN was 2.9 +/- 0.5 GtC yr(-1), and S-LAND was 2.5 +/- 0.9 GtC yr(-1). G(ATM) was high in 2013, reflecting a steady increase in E-FF and smaller and opposite changes between S-OCEAN and S-LAND compared to the past decade (2004-2013). The global atmospheric CO2 concentration reached 395.31 +/- 0.10 ppm averaged over 2013. We estimate that E-FF will increase by 2.5% (1.3-3.5 %) to 10.1 +/- 0.6 GtC in 2014 (37.0 +/- 2.2 GtCO(2) yr(-1)), 65% above emissions in 1990, based on projections of world gross domestic product and recent changes in the carbon intensity of the global economy.
From this projection of E-FF and assumed constant E-LUC for 2014, cumulative emissions of CO2 will reach about 545 +/- 55 GtC (2000 +/- 200 GtCO(2)) for 1870-2014, about 75% from E-FF and 25% from E-LUC. This paper documents changes in the methods and data sets used in this new carbon budget compared with previous publications of this living data set (Le Quere et al., 2013, 2014). All observations presented here can be downloaded from the Carbon Dioxide Information Analysis Center (doi:10.3334/CDIAC/GCP_2014).
C1 [Le Quere, C.; Moriarty, R.; Jones, S. D.] Univ E Anglia, Tyndall Ctr Climate Change Res, Norwich NR4 7TJ, Norfolk, England.
[Andrew, R. M.; Peters, G. P.] Ctr Int Climate & Environm Res Oslo CICERO, Oslo, Norway.
[Ciais, P.; Bopp, L.; Chevallier, F.; Peng, S.; Viovy, N.] UVSQ, CNRS, Inst Pierre Simon Laplace, Lab Sci Climat & Environm,CEA,CE Orme Merisiers, F-91191 Gif Sur Yvette, France.
[Friedlingstein, P.] Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QF, Devon, England.
[Sitch, S.; Schuster, U.] Univ Exeter, Coll Life & Environm Sci, Exeter EX4 4QE, Devon, England.
[Tans, P.] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA.
[Arneth, A.] Karlsruhe Inst Technol, Inst Meteorol & Climate Res Atmospher Environm, D-82467 Garmisch Partenkirchen, Germany.
[Boden, T. A.] Oak Ridge Natl Lab, Carbon Dioxide Informat Anal Ctr CDIAC, Oak Ridge, TN USA.
[Bozec, Y.] CNRS, Equipe Chim Marine, Stn Biolog Roscoff, UMR7144, F-29680 Roscoff, France.
[Bozec, Y.] Univ Paris 06, Sorbonne Univ, Adaptat & Diversite Milieu Marin UMR7144, Stn Biol Roscoff, F-29680 Roscoff, France.
[Canadell, J. G.] CSIRO Oceans & Atmosphere Flagship, Global Carbon Project, Canberra, ACT 2601, Australia.
[Chini, L. P.] Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA.
[Cosca, C. E.; Mathis, J. T.; Sutton, A. J.] NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA.
[Harris, I.] Univ E Anglia, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England.
[Hoppema, M.] Helmholtz Ctr Polar & Marine Res, Alfred Wegener Inst, D-27515 Bremerhaven, Germany.
[Houghton, R. A.] Woods Hole Res Ctr WHRC, Falmouth, MA 02540 USA.
[House, J. I.] Univ Bristol, Dept Geog, Cabot Inst, Bristol BS8 1TH, Avon, England.
[Jain, A. K.] Univ Illinois, Dept Atmospher Sci, Urbana, IL 61821 USA.
[Johannessen, T.; Landa, C. S.; Olsen, A.; Pfeil, B.; Schwinger, J.] Univ Bergen, Geophys Inst, N-5007 Bergen, Norway.
[Johannessen, T.; Landa, C. S.; Olsen, A.; Pfeil, B.; Schwinger, J.] Bjerknes Ctr Climate Res, N-5007 Bergen, Norway.
[Kato, E.; Nojiri, Y.] Natl Inst Environm Studies NIES, Ctr Global Environm Res, Tsukuba, Ibaraki 3058506, Japan.
[Kato, E.] Inst Appl Energy IAE, Tokyo 1050003, Japan.
[Keeling, R. F.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Kitidis, V.] Plymouth Marine Lab, Plymouth PL1 3DH, Devon, England.
[Goldewijk, K. Klein] PBL Netherlands Environm Assessment Agcy, The Hague, Netherlands.
[Goldewijk, K. Klein] Univ Utrecht, Utrecht, Netherlands.
[Koven, C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Landschuetzer, P.] ETH, Inst Biogeochem & Pollutant Dynam, Environm Phys Grp, CH-8092 Zurich, Switzerland.
[Lenton, A.] CSIRO Oceans & Atmosphere Flagship, Hobart, Tas, Australia.
[Lima, I. D.] Woods Hole Oceanog Inst WHOI, Woods Hole, MA 02543 USA.
[Marland, G.] Appalachian State Univ, Res Inst Environm Energy & Econ, Boone, NC 28608 USA.
[Metzl, N.] Univ Paris 06, Sorbonne Univ, CNRS, IRD,MNHN,LOCEAN IPSL Lab, F-75252 Paris, France.
[Ono, T.] Fisheries Res Agcy, Natl Res Inst Fisheries Sci, Kanazawa Ku, Yokohama, Kanagawa 2368648, Japan.
[Peters, W.] Wageningen Univ, Environm Sci Grp, Dept Meteorol & Air Qual, NL-6700 AA Wageningen, Netherlands.
[Poulter, B.] Montana State Univ, Dept Ecol, Bozeman, MT 59717 USA.
[Raupach, M. R.] Australian Natl Univ, ANU Climate Change Inst, Fenner Sch Environm & Soc, Canberra, ACT 0200, Australia.
[Regnier, P.] Univ Libre Bruxelles, Dept Earth & Environm Sci, B-1050 Brussels, Belgium.
[Roedenbeck, C.] Max Planck Inst Biogeochem, D-07745 Jena, Germany.
[Saito, S.] Japan Meteorol Agcy, Global Environm & Marine Dept, Marine Div, Chiyoda Ku, Tokyo 1008122, Japan.
[Salisbury, J. E.] Univ New Hampshire, Ocean Proc Anal Lab, Durham, NH 03824 USA.
[Seferian, R.] CNRS, CNRM GAME, Meteo France CNRS, F-31100 Toulouse, France.
[Segschneider, J.] Max Planck Inst Meteorol, D-20146 Hamburg, Germany.
[Steinhoff, T.] GEOMAR Helmholtz Ctr Ocean Res Kiel, D-24105 Kiel, Germany.
[Stocker, B. D.] Univ Bern, Climate & Environm Phys, Bern, Switzerland.
[Stocker, B. D.] Univ Bern, Oeschger Ctr Climate Change Res, Bern, Switzerland.
[Stocker, B. D.] Univ London Imperial Coll Sci Technol & Med, Dept Life Sci, Ascot SL5 7PY, Berks, England.
[Sutton, A. J.] Univ Washington, Joint Inst Study Atmosphere & Oceans, Seattle, WA 98195 USA.
[Takahashi, T.] Lamont Doherty Earth Observ Columbia Univ, Palisades, NY 10964 USA.
[Tilbrook, B.] CSIRO Oceans & Atmosphere, Hobart, Tas, Australia.
[Tilbrook, B.] Antarctic Climate & Ecosyst Cooperat Res Ctr, Hobart, Tas, Australia.
[van der Werf, G. R.] Vrije Univ Amsterdam, Fac Earth & Life Sci, Amsterdam, Netherlands.
[Wang, Y. -P.] CSIRO Ocean & Atmosphere, Aspendale, Vic 3195, Australia.
[Wanninkhof, R.] NOAA, AOML, Miami, FL 33149 USA.
[Wiltshire, A.] Met Off Hadley Ctr, Exeter EX1 3PB, Devon, England.
[Zeng, N.] Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA.
RP Le Quere, C (reprint author), Univ E Anglia, Tyndall Ctr Climate Change Res, Norwich Res Pk, Norwich NR4 7TJ, Norfolk, England.
EM c.lequere@uea.ac.uk
RI Sutton, Adrienne/C-7725-2015; Jain, Atul/D-2851-2016; Koven,
Charles/N-8888-2014; Le Quere, Corinne/C-2631-2017; wang,
yp/A-9765-2011; Lenton, Andrew/D-2077-2012; Klein Goldewijk,
Kees/L-5567-2013; Canadell, Josep/E-9419-2010; Peters,
Wouter/B-8305-2008; Zeng, Ning/A-3130-2008; Friedlingstein,
Pierre/H-2700-2014; van der Werf, Guido/M-8260-2016; Stocker,
Benjamin/K-3194-2015; Tilbrook, Bronte/A-1522-2012; Olsen,
Are/A-1511-2011; Lima, Ivan/A-6823-2016; House, Joanna/B-6477-2016;
Nojiri, Yukihiro/D-1999-2010; Peng, Shushi/J-4779-2014; Chevallier,
Frederic/E-9608-2016
OI Hoppema, Mario/0000-0002-2326-619X; Poulter,
Benjamin/0000-0002-9493-8600; Kitidis, Vassilis/0000-0003-3949-3802;
Moriarty, Roisin/0000-0003-1993-1756; Andrew,
Robbie/0000-0001-8590-6431; Sutton, Adrienne/0000-0002-7414-7035; Jain,
Atul/0000-0002-4051-3228; Koven, Charles/0000-0002-3367-0065; Le Quere,
Corinne/0000-0003-2319-0452; Lenton, Andrew/0000-0001-9437-8896; Jones,
Steve/0000-0003-0522-9851; Canadell, Josep/0000-0002-8788-3218; Peters,
Wouter/0000-0001-8166-2070; Zeng, Ning/0000-0002-7489-7629; van der
Werf, Guido/0000-0001-9042-8630; Stocker, Benjamin/0000-0003-2697-9096;
Tilbrook, Bronte/0000-0001-9385-3827; Olsen, Are/0000-0003-1696-9142;
Lima, Ivan/0000-0001-5345-0652; House, Joanna/0000-0003-4576-3960;
Nojiri, Yukihiro/0000-0001-9885-9195; Peng, Shushi/0000-0001-5098-726X;
Chevallier, Frederic/0000-0002-4327-3813
FU International Opportunities Fund [NE/103002X/1]; UKOARP [NE/H017046/1];
Norwegian Research Council [236296]; US Department of Energy, Office of
Science, Biological and Environmental Research (BER) programmes under US
Department of Energy [DE-AC05-00OR22725]; Region Bretagne; INSU
(LEFE/MERMEX) for CARBORHONE cruises; Australian Climate Change Science
Programme; ICOSD through the German Federal Ministry of Education and
Research (BMBF) [01 LK 1224I]; Leverhulme Early Career Fellowship; US
National Science Foundation [NSF AGS 12-43071]; US Department of Energy,
Office of Science, and BER programmes [DOE DE-SC0006706]; NASA LCLUC
programme [NASA NNX14AD94G]; Environment Research and Technology
Development Fund of the Ministry of Environment of Japan [S-10]; Office
of Science, Office of Biological and Environmental Research, of the US
Department of Energy [DE-AC02-05CH11231]; U. S. National Science
Foundation [NSF AGS-1048827]; Institut National des Sciences de
l'Univers (INSU); Institut Paul Emile Victor (IPEV) for OISO cruises;
Centre for Climate Dynamics at the Bjerknes Centre for Climate Research;
NOAA/NASA; ICOS-D [BMBF FK 01LK1101C]; Swiss National Science
Foundation; FP7 through project EMBRACE [282672]; NOAA; Comer Education
and Science Foundation; Australian Department of the Environment and the
Integrated Marine Observing System; UK DECC/Defra Met Office Hadley
Centre Climate Programme [GA01101]; EU FP7 [283080]; COMBINE [226520];
EU FP7 through project CARBOCHANGE [264879]; EU [GA603542, GA282672,
283576]; EMBRACE [GA282672]; DOE [DE-SC0005090]; NSF [ATM-1036399]; NOAA
[NA10OAR4320156]; [CG29]
FX NERC provided funding to C. Le Quere, R. Moriarty, and the GCP though
their International Opportunities Fund specifically to support this
publication (NE/103002X/1), and to U. Schuster through UKOARP
(NE/H017046/1). G. P. Peters and R. M. Andrews were supported by the
Norwegian Research Council (236296). T. A. Boden was supported by US
Department of Energy, Office of Science, Biological and Environmental
Research (BER) programmes under US Department of Energy contract
DE-AC05-00OR22725. Y. Bozec was supported by Region Bretagne, CG29, and
INSU (LEFE/MERMEX) for CARBORHONE cruises. J. G. Canadell and M. R.
Raupach were supported by the Australian Climate Change Science
Programme. M. Hoppema received ICOSD funding through the German Federal
Ministry of Education and Research (BMBF) to the AWI (01 LK 1224I). J.
I. House was supported by a Leverhulme Early Career Fellowship. A. K.
Jain was supported by the US National Science Foundation (NSF AGS
12-43071) the US Department of Energy, Office of Science, and BER
programmes (DOE DE-SC0006706) and the NASA LCLUC programme (NASA
NNX14AD94G). E. Kato was supported by the Environment Research and
Technology Development Fund (S-10) of the Ministry of Environment of
Japan. C. Koven was supported by the Director, Office of Science, Office
of Biological and Environmental Research, of the US Department of Energy
under contract no. DE-AC02-05CH11231 as part of their Regional and
Global Climate Modeling Program. I. D. Lima was supported by the U. S.
National Science Foundation (NSF AGS-1048827). N. Metzl was supported by
Institut National des Sciences de l'Univers (INSU) and Institut Paul
Emile Victor (IPEV) for OISO cruises. A. Olsen was supported by the
Centre for Climate Dynamics at the Bjerknes Centre for Climate Research.
J. E. Salisbury was supported by grants from NOAA/NASA. T. Steinhoff was
supported by ICOS-D (BMBF FK 01LK1101C). B. D. Stocker was supported by
the Swiss National Science Foundation and FP7 funding through project
EMBRACE (282672). A. J. Sutton was supported by NOAA. T. Takahashi was
supported by grants from NOAA and the Comer Education and Science
Foundation. B. Tilbrook was supported by the Australian Department of
the Environment and the Integrated Marine Observing System. A. Wiltshire
was supported by the Joint UK DECC/Defra Met Office Hadley Centre
Climate Programme (GA01101). P. Ciais, W. Peters, C. Le Quere, P.
Regnier, and U. Schuster were supported by the EU FP7 through project
GEOCarbon (283080). A. Arneth, P. Ciais, S. Sitch, and A. Wiltshire were
supported by COMBINE (226520). V. Kitidis, M. Hoppema, N. Metzl, C. Le
Quere, U. Schuster, J. Schwiger, J. Segschneider, and T. Steinhoff were
supported by the EU FP7 through project CARBOCHANGE (264879). A. Arnet,
P. Friedlingstein, B. Poulter, and S. Sitch were supported by the EU FP7
through projects LUC4C (GA603542). P. Friedlingstein was also supported
by EMBRACE (GA282672). F. Chevallier and G. R. van der Werf were
supported by the EU FP7 through project MACC-II (283576). This is
NOAA-PMEL contribution number 4216. Contributions from the Scripps
Institution of Oceanography were supported by DOE grant DE-SC0005090,
NSF grant ATM-1036399, and NOAA grant NA10OAR4320156.
NR 128
TC 111
Z9 111
U1 23
U2 210
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1866-3508
EI 1866-3516
J9 EARTH SYST SCI DATA
JI Earth Syst. Sci. Data
PY 2015
VL 7
IS 1
BP 47
EP 85
DI 10.5194/essd-7-47-2015
PG 39
WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences
SC Geology; Meteorology & Atmospheric Sciences
GA CL4PC
UT WOS:000356934300005
ER
PT J
AU Younesi, R
Veith, GM
Johansson, P
Edstrom, K
Vegge, T
AF Younesi, Reza
Veith, Gabriel M.
Johansson, Patrik
Edstrom, Kristina
Vegge, Tejs
TI Lithium salts for advanced lithium batteries: Li-metal, Li-O-2, and Li-S
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Review
ID QUARTZ-CRYSTAL MICROBALANCE; ION BATTERIES; AIR BATTERIES;
THERMAL-STABILITY; ELECTROLYTE SALTS; SULFUR BATTERIES; LIQUID
ELECTROLYTES; SECONDARY BATTERIES; OXYGEN BATTERIES; ELECTROCHEMICAL
PROPERTIES
AB Presently lithium hexafluorophosphate (LiPF6) is the dominant Li-salt used in commercial rechargeable lithium-ion batteries (LIBs) based on a graphite anode and a 3-4 V cathode material. While LiPF6 is not the ideal Li-salt for every important electrolyte property, it has a uniquely suitable combination of properties (temperature range, passivation, conductivity, etc.) rendering it the overall best Li-salt for LIBs. However, this may not necessarily be true for other types of Li-based batteries. Indeed, next generation batteries, for example lithium-metal (Li-metal), lithium-oxygen (Li-O-2), and lithium-sulfur (Li-S), require a re-evaluation of Li-salts due to the different electrochemical and chemical reactions and conditions within such cells. This review explores the critical role Li-salts play in ensuring in these batteries viability.
C1 [Younesi, Reza; Vegge, Tejs] Tech Univ Denmark, Dept Energy Convers & Storage, DK-4000 Roskilde, Denmark.
[Younesi, Reza; Edstrom, Kristina] Uppsala Univ, Dept Chem, Angstrom Lab, SE-75121 Uppsala, Sweden.
[Veith, Gabriel M.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Johansson, Patrik] Chalmers, Dept Appl Phys, SE-41296 Gothenburg, Sweden.
[Johansson, Patrik; Edstrom, Kristina] ALISTORE ERI European Res Inst, F-80039 Amiens, France.
RP Younesi, R (reprint author), Tech Univ Denmark, Dept Energy Convers & Storage, Frederiksborgvej 399,POB 49, DK-4000 Roskilde, Denmark.
EM reyo@dtu.dk
RI Johansson, Patrik/A-7660-2010; Younesi, Reza/K-9003-2012; Vegge,
Tejs/A-9419-2011
OI Edstroem, Kristina/0000-0003-4440-2952; Johansson,
Patrik/0000-0002-9907-117X; Younesi, Reza/0000-0003-2538-8104; Vegge,
Tejs/0000-0002-1484-0284
FU Danish Council for Strategic Research Programme Commission on
Sustainable Energy and Environment under the Danish Innovation
Foundation [11-116792/0603-00462B]; U.S. Department of Energy's Office
of Basic Energy Science (DOE-BES), Division of Materials Sciences and
Engineering; UT-Battelle, LLC; UU/KTH StandUp for Energy; Chalmers Areas
of Advance: Materials Science, Energy and Transport; Swedish Foundation
for Strategic Research (SSF); Battery Fond
FX The authors acknowledge support of this work from the ReLiable project
(project nr. 11-116792/0603-00462B) funded by the Danish Council for
Strategic Research Programme Commission on Sustainable Energy and
Environment under the Danish Innovation Foundation. A portion of this
work (GMV) was supported by U.S. Department of Energy's Office of Basic
Energy Science (DOE-BES), Division of Materials Sciences and
Engineering, under contract with UT-Battelle, LLC. In addition, the
UU/KTH StandUp for Energy as well as several of Chalmers Areas of
Advance: Materials Science, Energy and Transport, the Swedish Foundation
for Strategic Research (SSF) within the project Road to load and the
Battery Fond administrated by the Swedish Energy Agency, are all
acknowledged for support.
NR 197
TC 34
Z9 35
U1 78
U2 340
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
EI 1754-5706
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2015
VL 8
IS 7
BP 1905
EP 1922
DI 10.1039/c5ee01215e
PG 18
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA CM2VV
UT WOS:000357541300004
ER
PT J
AU Gong, J
Darling, SB
You, FQ
AF Gong, Jian
Darling, Seth B.
You, Fengqi
TI Perovskite photovoltaics: life-cycle assessment of energy and
environmental impacts
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID HETEROJUNCTION SOLAR-CELLS; PAYBACK TIME; DEPOSITION; EFFICIENCY;
SYSTEMS; PERFORMANCE; CADMIUM; MODULES; CDTE
AB The past few years have witnessed a rapid evolution of perovskite solar cells, an unprecedented photovoltaic (PV) technology with both relatively low cost and high power conversion efficiency. In this paper, we perform a life cycle assessment for two types of solution-processed perovskite solar modules to shed light on the environmental performance of this promising class of PVs. One module is equipped with FTO glass, a gold cathode, and mesoporous TiO2 scaffold; the other is equipped with ITO glass, a silver cathode, and ZnO thin film. We develop comprehensive life cycle inventories (LCIs) for all components used in the modules. Based on the LCI results, we conduct life cycle impact assessment for 16 common life cycle impact indicators, Eco-indicator 99, and two sustainable indicators: the energy payback time (EPBT) and the CO2 emission factor. We compare the results of Eco-indicator 99, the EPBT, and the CO2 emission factor among existing PV technologies, and further perform uncertainty analysis and sensitivity analysis for the two modules. The results demonstrate that perovskite solar modules possess the shortest EPBT, and future research should be directed to improving the system performance ratio and the device lifetime, and reducing precious metal consumption and energy-intensive operations in order to lower the CO2 emission factor.
C1 [Gong, Jian; You, Fengqi] Northwestern Univ, Dept Chem & Biol Engn, Evanston, IL 60208 USA.
[Darling, Seth B.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Darling, Seth B.] Univ Chicago, Inst Mol Engn, Chicago, IL USA.
RP Gong, J (reprint author), Northwestern Univ, Dept Chem & Biol Engn, 2145 Sheridan Rd, Evanston, IL 60208 USA.
EM you@northwestern.edu
RI You, Fengqi/B-5040-2011; You, Fengqi/F-6894-2011
OI You, Fengqi/0000-0001-9609-4299;
FU Institute for Sustainability and Energy at Northwestern University
(ISEN); U.S. Department of Energy, Office of Science, Office of Basic
Energy Sciences User Facility [DE-AC02-06CH11357]
FX We gratefully acknowledge the financial support from the Institute for
Sustainability and Energy at Northwestern University (ISEN). This work
was performed, in part, at the Center for Nanoscale Materials, a U.S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
User Facility under Contract no. DE-AC02-06CH11357. The authors thank
C.-C. Ho for useful conversations regarding perovskite PV device
processing.
NR 60
TC 73
Z9 73
U1 24
U2 106
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
EI 1754-5706
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2015
VL 8
IS 7
BP 1953
EP 1968
DI 10.1039/c5ee00615e
PG 16
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA CM2VV
UT WOS:000357541300007
ER
PT J
AU Wu, D
Zhao, LD
Tong, X
Li, W
Wu, LJ
Tan, Q
Pei, YL
Huang, L
Li, JF
Zhu, YM
Kanatzidis, MG
He, JQ
AF Wu, Di
Zhao, Li-Dong
Tong, Xiao
Li, Wei
Wu, Lijun
Tan, Qing
Pei, Yanling
Huang, Li
Li, Jing-Feng
Zhu, Yimei
Kanatzidis, Mercouri G.
He, Jiaqing
TI Superior thermoelectric performance in PbTe-PbS pseudo-binary: extremely
low thermal conductivity and modulated carrier concentration
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID DENSITY-OF-STATES; BULK THERMOELECTRICS; PHONON-SCATTERING; PANOSCOPIC
APPROACH; HIGH FIGURE; MERIT; NANOSTRUCTURES; EFFICIENCY; ENHANCEMENT;
TEMPERATURE
AB Lead chalcogenides are dominant thermoelectric materials in the medium-temperature range due to their highly favorable electronic band structures and low thermal conductivities. An important system is the PbTe-PbS pseudo-binary, and its low thermal conductivity originates largely from the coexistence of both alloying and nanostructuring through phase-separation. To better understand the competition between the alloying and phase separation and its pronounced effects on the thermoelectric performance in PbTe-PbS, we systematically studied, via transmission electron microscopy (TEM) observations and theoretical calculations, the samples of Spark Plasma Sintered (SPSed) 3 at% Na-doped (PbTe)(1-x)(PbS)(x) with x = 10%, 15%, 20%, 25%, 30% and 35%. The highest figure of merit, viz., ZT similar to 2.3 was obtained at 923 K, when the PbS phase-fraction, x, was 20%, which corresponds to the lowest lattice thermal conductivity of the series. The consistently lower lattice thermal conductivities in the SPSed samples as compared with the corresponding ingots originates from the mesostructured nature of the former, which contributes significantly to their superior ZT. We also studied the onset of carrier concentration modulation at similar to 600 K, which leads to the observed saturation of electrical transport properties due to the diffusion and re-dissolution of excessive Na into the PbTe-PbS matrix. This carrier concentration modulation is equally crucial to achieve very high power factors (up to 26.5 mW cm(-1) K-2 at 623 K) and outstanding thermoelectric performances in SPSed PbTe-PbS binaries.
C1 [Wu, Di; Tong, Xiao; Li, Wei; Huang, Li; He, Jiaqing] South Univ Sci & Technol China, Dept Phys, Shenzhen 518055, Peoples R China.
[Wu, Di; Li, Wei; Huang, Li; He, Jiaqing] Shenzhen Key Lab Thermoelect Mat, Shenzhen 518055, Peoples R China.
[Zhao, Li-Dong; Pei, Yanling] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China.
[Zhao, Li-Dong; Kanatzidis, Mercouri G.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Wu, Lijun; Zhu, Yimei] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
[Tan, Qing; Li, Jing-Feng] Tsinghua Univ, Sch Mat Sci & Engn, Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China.
RP Wu, D (reprint author), South Univ Sci & Technol China, Dept Phys, Shenzhen 518055, Peoples R China.
EM m-kanatzidis@northwestern.edu; he.jq@sustc.edu.cn
RI Li, Jing-Feng/D-2770-2014; Wu, Di/L-2437-2015
OI Li, Jing-Feng/0000-0002-0185-0512;
FU South University of Science and Technology of China; Science, Technology
and Innovation Commission of Shenzhen Municipality
[JCYJ20140612140151884]; NSFC [11404160, 51202008]; Beihang University;
Recruitment Program for Young Professionals; Postdoctoral Science
Foundation of China [2013M540037]; Revolutionary Materials for Solid
State Energy Conversion, an Energy Frontier Research Center - U.S.
Department of Energy, Office of Science, and Office of Basic Energy
Sciences [DE-SC0001054]
FX This contribution was supported by the startup of South University of
Science and Technology of China, and partly supported by the Science,
Technology and Innovation Commission of Shenzhen Municipality (Grant No.
JCYJ20140612140151884), the NSFC under Grant No. 11404160 (Li Huang),
the "Zhuoyue program" from Beihang University and the Recruitment
Program for Young Professionals (L-D. Zhao), the NSFC under Grant No.
51202008, and the Postdoctoral Science Foundation of China (2013M540037)
(Y.L. Pei). At Northwestern, the study was supported as part of the
Revolutionary Materials for Solid State Energy Conversion, an Energy
Frontier Research Center funded by the U.S. Department of Energy, Office
of Science, and Office of Basic Energy Sciences under Award Number
DE-SC0001054. D. Wu would like to thank Haijun Wu and Fengshan Zheng for
their thoughtful discussions on this manuscript.
NR 57
TC 21
Z9 21
U1 20
U2 114
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
EI 1754-5706
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2015
VL 8
IS 7
BP 2056
EP 2068
DI 10.1039/c5ee01147g
PG 13
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA CM2VV
UT WOS:000357541300018
ER
PT J
AU Lucas, DD
Kwok, CY
Cameron-Smith, P
Graven, H
Bergmann, D
Guilderson, TP
Weiss, R
Keeling, R
AF Lucas, D. D.
Kwok, C. Yver
Cameron-Smith, P.
Graven, H.
Bergmann, D.
Guilderson, T. P.
Weiss, R.
Keeling, R.
TI Designing optimal greenhouse gas observing networks that consider
performance and cost
SO GEOSCIENTIFIC INSTRUMENTATION METHODS AND DATA SYSTEMS
LA English
DT Article
ID AIR-QUALITY; WRF MODEL; INVERSION; OPTIMIZATION; SENSITIVITY;
PREDICTION; ALGORITHM; EMISSIONS; TRANSPORT; TRACER
AB Emission rates of greenhouse gases (GHGs) entering into the atmosphere can be inferred using mathematical inverse approaches that combine observations from a network of stations with forward atmospheric transport models. Some locations for collecting observations are better than others for constraining GHG emissions through the inversion, but the best locations for the inversion may be inaccessible or limited by economic and other non-scientific factors. We present a method to design an optimal GHG observing network in the presence of multiple objectives that may be in conflict with each other. As a demonstration, we use our method to design a prototype network of six stations to monitor summertime emissions in California of the potent GHG 1,1,1,2-tetrafluoroethane (CH2FCF3, HFC-134a). We use a multiobjective genetic algorithm to evolve network configurations that seek to jointly maximize the scientific accuracy of the inferred HFC-134a emissions and minimize the associated costs of making the measurements. The genetic algorithm effectively determines a set of 'optimal' observing networks for HFC-134a that satisfy both objectives (i.e., the Pareto frontier). The Pareto frontier is convex, and clearly shows the tradeoffs between performance and cost, and the diminishing returns in trading one for the other. Without difficulty, our method can be extended to design optimal networks to monitor two or more GHGs with different emissions patterns, or to incorporate other objectives and constraints that are important in the practical design of atmospheric monitoring networks.
C1 [Lucas, D. D.; Cameron-Smith, P.; Bergmann, D.; Guilderson, T. P.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Kwok, C. Yver] Lab Sci Climat & Environm, Gif Sur Yvette, France.
[Graven, H.] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London, England.
[Graven, H.] Univ London Imperial Coll Sci Technol & Med, Grantham Inst, London, England.
[Graven, H.; Weiss, R.; Keeling, R.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
RP Lucas, DD (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM ddlucas@alum.mit.edu
RI Cameron-Smith, Philip/E-2468-2011;
OI Cameron-Smith, Philip/0000-0002-8802-8627; Graven,
Heather/0000-0003-3934-2502
FU National Institute of Standards and Technology [60NANB10D026];
Laboratory Directed Research and Development projects at the Lawrence
Livermore National Laboratory [GS-07ERD064, PLS-14ERD006]; US Department
of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
FX This work was funded by the National Institute of Standards and
Technology (grant number 60NANB10D026) and Laboratory Directed Research
and Development projects at the Lawrence Livermore National Laboratory
(tracking codes GS-07ERD064 and PLS-14ERD006). The work was performed
under the auspices of the US Department of Energy by Lawrence Livermore
National Laboratory under Contract DE-AC52-07NA27344, and is released
under UCRL number LLNL-JRNL-659224.
NR 55
TC 2
Z9 2
U1 2
U2 9
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 2193-0856
EI 2193-0864
J9 GEOSCI INSTRUM METH
JI Geosci. Instrum. Methods Data Syst.
PY 2015
VL 4
IS 1
BP 121
EP 137
DI 10.5194/gi-4-121-2015
PG 17
WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences
SC Geology; Meteorology & Atmospheric Sciences
GA CL9HA
UT WOS:000357286800013
ER
PT J
AU Feng, W
Wu, JB
Li, XL
Zheng, W
Zhou, X
Xiao, K
Cao, WW
Yang, B
Idrobo, JC
Basile, L
Tian, WQ
Tan, PH
Hu, PA
AF Feng, Wei
Wu, Jing-Bin
Li, Xiaoli
Zheng, Wei
Zhou, Xin
Xiao, Kai
Cao, Wenwu
Yang, Bin
Idrobo, Juan-Carlos
Basile, Leonardo
Tian, Weiquan
Tan, PingHeng
Hu, PingAn
TI Ultrahigh photo-responsivity and detectivity in multilayer InSe
nanosheets phototransistors with broadband response
SO JOURNAL OF MATERIALS CHEMISTRY C
LA English
DT Article
ID METAL DICHALCOGENIDE NANOSHEETS; THIN-FILMS; OPTICAL-PROPERTIES;
PHOTODETECTORS; LAYERS; POLYCRYSTALLINE; FABRICATION; GRAPHENE; YIELD
AB We demonstrate the strategies and principles for the performance improvement of layered semiconductor based photodetectors using multilayer indium selenide (InSe) as the model material. It is discovered that multiple reflection interference at the interfaces in the phototransistor device leads to a thickness-dependent photo-response, which provides a guideline to improve the performance of layered semiconductor based phototransistors. The responsivity and detectivity of InSe nanosheet phototransistor can be adjustable using applied gate voltage. Our InSe nanosheet phototransistor exhibits ultrahigh responsivity and detectivity. An ultrahigh external photo-responsivity of similar to 10(4) A W-1 can be achieved from broad spectra ranging from UV to near infrared wavelength using our InSe nanosheet photodetectors. The detectivity of multilayer InSe devices is similar to 10(12) to 10(13) Jones, which surpasses that of the currently exploited InGaAs photodetectors (10(11) to 10(12) Jones). This research shows that multilayer InSe nanosheets are promising materials for high performance photodetectors.
C1 [Feng, Wei; Zheng, Wei; Hu, PingAn] Harbin Inst Technol, Key Lab Microsyst & Microstruct, Minist Educ, Harbin 150080, Peoples R China.
[Feng, Wei] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China.
[Wu, Jing-Bin; Li, Xiaoli; Tan, PingHeng] Chinese Acad Sci, Inst Semicond, State Key Lab Super Lattices & Microstruct, Beijing 100083, Peoples R China.
[Zhou, Xin; Tian, Weiquan] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150080, Peoples R China.
[Xiao, Kai; Idrobo, Juan-Carlos; Basile, Leonardo] Oak Ridge Natl Lab, Ctr Nano Phase Mat Sci, Oak Ridge, TN 37831 USA.
[Cao, Wenwu; Yang, Bin] Harbin Inst Technol, Condensed Matter Sci & Technol Inst, Harbin 150080, Peoples R China.
RP Hu, PA (reprint author), Harbin Inst Technol, Key Lab Microsyst & Microstruct, Minist Educ, 2 Yi Kuang St, Harbin 150080, Peoples R China.
EM hupa@hit.edu.cn
RI TAN, Ping-Heng/D-1137-2009; Feng, Wei/J-5913-2014; Cao,
Wenwu/F-6091-2012; Hu, Ping'an/C-1289-2013;
OI TAN, Ping-Heng/0000-0001-6575-1516; Cao, Wenwu/0000-0002-2447-1486;
Idrobo, Juan Carlos/0000-0001-7483-9034
FU National Natural Science Foundation of China (NSFC) [61172001, 21373068,
11225421, 11434010, 11474277]; National Key Basic Research Program of
China (973 Program) [2013CB632900]
FX This work is supported by National Natural Science Foundation of China
(NSFC, No. 61172001, 21373068, 11225421, 11434010 and 11474277), the
National Key Basic Research Program of China (973 Program) under Grant
No. 2013CB632900; A portion of this research was conducted at the Center
for Nanophase Materials Sciences, which is a DOE office of Science User
Facility.
NR 34
TC 13
Z9 13
U1 7
U2 41
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7526
EI 2050-7534
J9 J MATER CHEM C
JI J. Mater. Chem. C
PY 2015
VL 3
IS 27
BP 7022
EP 7028
DI 10.1039/c5tc01208b
PG 7
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA CM1CC
UT WOS:000357416500010
ER
PT J
AU Carter, NJ
Mainz, R
Walker, BC
Hages, CJ
Just, J
Klaus, M
Schmidt, SS
Weber, A
Yang, WCD
Zander, O
Stach, EA
Unold, T
Agrawal, R
AF Carter, Nathaniel J.
Mainz, Roland
Walker, Bryce C.
Hages, Charles J.
Just, Justus
Klaus, Manuela
Schmidt, Sebastian S.
Weber, Alfons
Yang, Wei-Chang D.
Zander, Ole
Stach, Eric A.
Unold, Thomas
Agrawal, Rakesh
TI The role of interparticle heterogeneities in the selenization pathway of
Cu-Zn-Sn-S nanoparticle thin films: a real-time study
SO JOURNAL OF MATERIALS CHEMISTRY C
LA English
DT Article
ID SOLAR-CELLS; FORMATION MECHANISM; PHASE-EQUILIBRIA; NANOCRYSTALS;
PRECURSORS; DIFFRACTION; CUINSE2; INKS; KINETICS; SYSTEM
AB Real-time energy dispersive X-ray diffraction (EDXRD) analysis has been utilized to observe the selenization of Cu-Zn-Sn-S nanoparticle films coated from three nanoparticle populations: Cu- and Sn-rich particles roughly 5 nm in size, Zn-rich nanoparticles ranging from 10 to 20 nm in diameter, and a mixture of both types of nanoparticles (roughly 1 : 1 by mass), which corresponds to a synthesis recipe yielding CZTSSe solar cells with reported total-area efficiencies as high as 7.9%. The EDXRD studies presented herein show that the formation of copper selenide intermediates during the selenization of mixed-particle films can be primarily attributed to the small, Cu- and Sn-rich particles. Moreover, the formation of these copper selenide phases represents the first stage of the CZTSSe grain growth mechanism. The large, Zn-rich particles subsequently contribute their composition to form micrometer-sized CZTSSe grains. These findings enable further development of a previously proposed selenization pathway to account for the roles of interparticle heterogeneities, which in turn provides a valuable guide for future optimization of processes to synthesize high quality CZTSSe absorber layers.
C1 [Carter, Nathaniel J.; Walker, Bryce C.; Hages, Charles J.; Agrawal, Rakesh] Purdue Univ, Sch Chem Engn, W Lafayette, IN 47906 USA.
[Mainz, Roland; Just, Justus; Klaus, Manuela; Schmidt, Sebastian S.; Weber, Alfons; Zander, Ole; Unold, Thomas] Helmholtz Zentrum Berlin Mat & Energie, D-14109 Berlin, Germany.
[Yang, Wei-Chang D.] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47906 USA.
[Stach, Eric A.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Agrawal, R (reprint author), Purdue Univ, Sch Chem Engn, W Lafayette, IN 47906 USA.
EM agrawalr@purdue.edu
RI Hages, Charles/J-6074-2015; Stach, Eric/D-8545-2011;
OI Hages, Charles/0000-0003-4054-1218; Stach, Eric/0000-0002-3366-2153;
Mainz, Roland/0000-0003-4793-9763
FU NSF Solar Economy IGERT [DGE-0903670]; German Ministry of Education and
Research within the project PINET [03SF0358F]; U.S. Department of
Energy, Office of Basic Energy Sciences [DE-SC0012704]
FX Special thanks go to Jakob Lauche and Guido Wagener for their support
during the real-time measurements at BESSY II, and to Kevin Brew for
preparing the Mo-coated SLG substrates. This work was funded by the NSF
Solar Economy IGERT (award #DGE-0903670). The funding of OZ by the
German Ministry of Education and Research within the project PINET
(03SF0358F) is gratefully acknowledged. EAS acknowledges support to 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-SC0012704.
NR 40
TC 3
Z9 3
U1 1
U2 15
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7526
EI 2050-7534
J9 J MATER CHEM C
JI J. Mater. Chem. C
PY 2015
VL 3
IS 27
BP 7128
EP 7134
DI 10.1039/c5tc01139f
PG 7
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA CM1CC
UT WOS:000357416500023
ER
PT J
AU Mehra, S
Chan, EM
Salleo, A
AF Mehra, Saahil
Chan, Emory M.
Salleo, Alberto
TI Modular synthetic design enables precise control of shape and doping in
colloidal zinc oxide nanorods
SO JOURNAL OF MATERIALS CHEMISTRY C
LA English
DT Article
ID ZNO NANOCRYSTALS; QUANTUM RODS; SYRINGE PUMP; NANOWIRES; CDSE;
HETEROSTRUCTURES; SEMICONDUCTOR; INTERFACE; EVOLUTION; GROWTH
AB Zinc oxide (ZnO) is a wide-band gap II-VI semiconductor with various optoelectronic applications owing to its transparency to visible light and tunable optical/electronic properties achieved by doping. While exquisite morphology control has been demonstrated for colloidal cadmium-chalcogenide II-VI nanocrystals over the past two decades, shape control strategies for solution-grown anisotropic ZnO nanocrystals (<100 nm) are limited in scope - they suffer from large polydispersities and highly branched nanorods. Here, we present a modular synthetic design approach that overcomes many of the synthetic challenges associated with zinc oxide nanorods and enables nearly independent control of morphology and impurity incorporation. Manipulation of alcoholysis reaction kinetics through multiple precursor solution injections and judicious use of phosphonic acid surfactants enables the synthesis of nanorods with highly tunable shapes, lengths (40-200 nm), diameters (6-80 nm), and doping levels (with aluminum - Al3+ - cations). This work will enable further studies on shape-dependent phenomena in colloidal metal oxide nanorods as well as facilitate understanding of doping and plasmonics in anisotropic nanoscale metal oxide systems.
C1 [Mehra, Saahil; Salleo, Alberto] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.
[Chan, Emory M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Salleo, A (reprint author), Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.
EM asalleo@stanford.edu
RI Foundry, Molecular/G-9968-2014
FU National Science Foundation [DMR1007886]; Office of Science, Office of
Basic Energy Sciences, of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX The authors gratefully acknowledge Dr. R. Buonsanti, Prof. D. Milliron,
A. Bergerud and E. Runnerstrom for helpful discussions and the National
Science Foundation (Award No. DMR1007886) for financial support. All
experiments were performed as part of the Molecular Foundry User
Program, supported by the Office of Science, Office of Basic Energy
Sciences, of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231.
NR 41
TC 6
Z9 6
U1 1
U2 12
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7526
EI 2050-7534
J9 J MATER CHEM C
JI J. Mater. Chem. C
PY 2015
VL 3
IS 27
BP 7172
EP 7179
DI 10.1039/c5tc01216c
PG 8
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA CM1CC
UT WOS:000357416500028
ER
PT S
AU Basu, S
McCrae, JE
Fiorino, ST
AF Basu, Santasri
McCrae, Jack E.
Fiorino, Steven T.
BE Turner, MD
Kamerman, GW
Thomas, LMW
Spillar, EJ
TI Estimation of the path-averaged atmospheric refractive index structure
constant from time-lapse imagery
SO LASER RADAR TECHNOLOGY AND APPLICATIONS XX; AND ATMOSPHERIC PROPAGATION
XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Radar Technology and Applications XX; and
Atmospheric Propagation XII
CY APR 21-23, 2015
CL Baltimore, MD
SP SPIE
DE imaging through turbulence; tilt; turbulence profiling; atmospheric
characterization; time-lapse imagery
ID GENERALIZED SCIDAR
AB A time-lapse imaging experiment was conducted to monitor the effects of the atmosphere over some period of time. A tripod-mounted digital camera captured images of a distant building every minute. Correlation techniques were used to calculate the position shifts between the images. Two factors causing shifts between the images are: atmospheric turbulence, causing the images to move randomly and quickly, plus changes in the average refractive index gradient along the path which cause the images to move vertically, more slowly and perhaps in noticeable correlation with solar heating and other weather conditions. A technique for estimating the path-averaged C-n(2) from the random component of the image motion is presented here. The technique uses a derived set of weighting functions that depend on the size of the imaging aperture and the patch size in the image whose motion is being tracked. Since this technique is phase based, it can be applied to strong turbulence paths where traditional irradiance based techniques suffer from saturation effects.
C1 [Basu, Santasri; McCrae, Jack E.; Fiorino, Steven T.] Air Force Inst Technol, Dept Engn Phys, Wright Patterson AFB, OH 45433 USA.
[Basu, Santasri; McCrae, Jack E.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37380 USA.
RP Basu, S (reprint author), Air Force Inst Technol, Dept Engn Phys, 2950 Hobson Way, Wright Patterson AFB, OH 45433 USA.
EM santasri.basu.ctr.in@afit.edu
NR 11
TC 2
Z9 2
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-581-0
J9 PROC SPIE
PY 2015
VL 9465
AR 94650T
DI 10.1117/12.2177330
PG 9
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0JA
UT WOS:000357260200022
ER
PT S
AU van der Laan, JD
Scrymgeour, DA
Wright, JB
Kemme, SA
Dereniak, EL
AF van der Laan, J. D.
Scrymgeour, D. A.
Wright, J. B.
Kemme, S. A.
Dereniak, E. L.
BE Turner, MD
Kamerman, GW
Thomas, LMW
Spillar, EJ
TI Increasing persistence through scattering environments by using
circularly polarized light
SO LASER RADAR TECHNOLOGY AND APPLICATIONS XX; AND ATMOSPHERIC PROPAGATION
XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Radar Technology and Applications XX; and
Atmospheric Propagation XII
CY APR 21-23, 2015
CL Baltimore, MD
SP SPIE
DE Circular polarization; polarization; scattering; Mie Theory; Monte
Carlo; fog; polarimetry
ID WAVES
AB We present simulation results that show circularly polarized light persists through scattering environments better than linearly polarized light. Specifically, we show persistence is enhanced through many scattering events in an environment with a size parameter representative of advection fog at infrared wavelengths. Utilizing polarization tracking Monte Carlo simulations we show a larger persistence benefit for circular polarization versus linear polarization for both forward and backscattered photons. We show the evolution of the incident polarization states after various scattering events which highlight the mechanism leading to circular polarization's superior persistence.
C1 [van der Laan, J. D.; Dereniak, E. L.] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA.
[van der Laan, J. D.; Scrymgeour, D. A.; Wright, J. B.; Kemme, S. A.] Sandia Natl Labs, Albuquerque, NM 87123 USA.
RP van der Laan, JD (reprint author), Univ Arizona, Coll Opt Sci, 1640 E Univ Blvd, Tucson, AZ 85721 USA.
EM johvand@sandia.gov
RI Scrymgeour, David/C-1981-2008
NR 9
TC 3
Z9 3
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-581-0
J9 PROC SPIE
PY 2015
VL 9465
AR 94650U
DI 10.1117/12.2177406
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0JA
UT WOS:000357260200023
ER
PT J
AU Huang, CC
Wang, S
Pan, LD
Liu, ZQ
Mccoy, BK
Sasaki, Y
Ema, K
Barois, P
Pindak, R
AF Huang, C. C.
Wang, Shun
Pan, LiDong
Liu, Z. Q.
McCoy, B. K.
Sasaki, Yuji
Ema, Kenji
Barois, P.
Pindak, Ron
TI Liquid crystal mesophases beyond commensurate four-layer periodicity
SO LIQUID CRYSTALS REVIEWS
LA English
DT Review
DE SmC* variant phases; SmC*(d6); resonant X-ray diffraction;
null-transmission ellipsometry
ID X-RAY-SCATTERING; SMECTIC-C TRANSITION; ALPHA-ASTERISK PHASE; DEVILS
STAIRCASE; A TRANSITION; TRICRITICAL BEHAVIOR; OPTICAL REFLECTIVITY;
FREESTANDING FILMS; ELECTRIC-FIELD; HEAT-CAPACITY
AB For more than one decade, SmC*(d4), SmC*(d3), andSmC*(A) were the only three confirmed commensurate SmC* variant phases with periodicities less than or equal four layers. In 2006, employing ellipsometry and resonant X-ray diffraction (RXRD), our research team first discovered a new liquid crystal mesophase having a six-layer periodicity in one ternary mixture which includes one sulfur-containing compound. From our ellipsometric results, this phase showed antiferroelectric-like optical response. This novel discovery inspired renewed interest to search for liquid crystal mesophases with commensurate periodicities greater than four layers. Soon after, another mesophase having a six-layer structure and showing a ferrielectric-like dielectric response, instead, was uncovered by RXRD measurements on a different binary mixture which has one bromine-containing compound. Meanwhile mesophases having a 5-, 8-, 12- or 15-layer periodicity were reported. However, numerous questions remain to be addressed associated with these unusual reported phases. Theoretical models giving rise to mesophases with periodicities greater than four layers have been developed; but, to date, none of them have provided satisfactory explanations of all the physical phenomena related to the mesophases exhibiting a six-layer structure. Moreover, the question "what is the source of long-range interactions between liquid-like smectic layers, which are responsible for establishing mesophases with long periodicities and mean-field behavior of the smectic-A-smectic-C transition?" remains unanswered for more than three decades.
C1 [Huang, C. C.; Wang, Shun; Pan, LiDong] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
[Wang, Shun] Shanghai Jiao Tong Univ, Key Lab Artificial Struct & Quantum Control, Minist Educ, Dept Phys & Astron, Shanghai 200240, Peoples R China.
[Pan, LiDong] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
[Liu, Z. Q.] St Cloud State Univ, Dept Phys & Astron, St Cloud, MN 56301 USA.
[McCoy, B. K.] Azusa Pacific Univ, Dept Math & Phys, Azusa, CA 91702 USA.
[Sasaki, Yuji] Hokkaido Univ, Dept Appl Phys, Grad Sch Engn, Sapporo, Hokkaido 0608628, Japan.
[Ema, Kenji] Tokyo Inst Technol, Dept Phys, Grad Sch Sci & Engn, Meguro Ku, Tokyo 1528550, Japan.
[Barois, P.] Univ Bordeaux, Natl Ctr Sci Res CNRS, CRPP, UPR8641, F-33600 Pessac, France.
[Pindak, Ron] Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA.
RP Huang, CC (reprint author), Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
EM huang001@umn.edu
RI Shun, Wang/O-6978-2015
OI Shun, Wang/0000-0002-7996-8887
FU US Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-98CH10886]
FX Use of the National Synchrotron Light Source, Brookhaven National
Laboratory, was supported by the US Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-98CH10886.
NR 85
TC 2
Z9 2
U1 5
U2 13
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 2168-0396
EI 2168-0418
J9 LIQ CRYST REV
JI Liq. Cryst. Rev.
PY 2015
VL 3
IS 1
BP 58
EP 78
DI 10.1080/21680396.2015.1030462
PG 21
WC Chemistry, Physical; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA CM5OF
UT WOS:000357736900003
ER
PT J
AU An, YH
Wood, BC
Ye, JC
Chiang, YM
Wang, YM
Tang, M
Jiang, HQ
AF An, Yonghao
Wood, Brandon C.
Ye, Jianchao
Chiang, Yet-Ming
Wang, Y. Morris
Tang, Ming
Jiang, Hanqing
TI Mitigating mechanical failure of crystalline silicon electrodes for
lithium batteries by morphological design
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID PHASE-FIELD MODEL; ION BATTERIES; ELECTROCHEMICAL LITHIATION;
ALKALINE-SOLUTIONS; NANOWIRES; FRACTURE; ANODES; EVOLUTION; DEFORMATION;
NANOPILLARS
AB Although crystalline silicon (c-Si) anodes promise very high energy densities in Li-ion batteries, their practical use is complicated by amorphization, large volume expansion and severe plastic deformation upon lithium insertion. Recent experiments have revealed the existence of a sharp interface between crystalline Si (c-Si) and the amorphous LixSi alloy during lithiation, which propagates with a velocity that is orientation dependent; the resulting anisotropic swelling generates substantial strain concentrations that initiate cracks even in nanostructured Si. Here we describe a novel strategy to mitigate lithiation-induced fracture by using pristine c-Si structures with engineered anisometric morphologies that are deliberately designed to counteract the anisotropy in the crystalline/amorphous interface velocity. This produces a much more uniform volume expansion, significantly reducing strain concentration. Based on a new, validated methodology that improves previous models of anisotropic swelling of c-Si, we propose optimal morphological designs for c-Si pillars and particles. The advantages of the new morphologies are clearly demonstrated by mesoscale simulations and verified by experiments on engineered c-Si micropillars. The results of this study illustrate that morphological design is effective in improving the fracture resistance of micron-sized Si electrodes, which will facilitate their practical application in next-generation Li-ion batteries. The model and design approach present in this paper also have general implications for the study and mitigation of mechanical failure of electrode materials that undergo large anisotropic volume change upon ion insertion and extraction.
C1 [An, Yonghao; Jiang, Hanqing] Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85286 USA.
[An, Yonghao; Wood, Brandon C.; Ye, Jianchao; Wang, Y. Morris] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
[An, Yonghao; Chiang, Yet-Ming] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA.
[Tang, Ming] Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 USA.
RP Tang, M (reprint author), Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 USA.
EM mingtang@rice.edu; Hanqing.Jiang@asu.edu
RI Wang, Yinmin (Morris)/F-2249-2010; Jiang, Hanqing/B-1810-2008
OI Jiang, Hanqing/0000-0002-1947-4420
FU DOE [DE-SC0002626]; US Department of Energy by LLNL [DE-AC52-07NA27344];
Laboratory Directed Research and Development (LDRD) programs of LLNL
[12-ERD-053]; NSF [CMMI-1067947, CMMI-1162619]; Lawrence Scholarship at
LLNL
FX Y.A. acknowledges financial assistance from the Lawrence Scholarship at
LLNL. Y.A., Y.M.C. and M.T. are supported by DOE project number
DE-SC0002626. The work of B.W., J.Y. and Y.M.W. was performed under the
auspices of the US Department of Energy by LLNL under contract No.
DE-AC52-07NA27344, and supported by the Laboratory Directed Research and
Development (LDRD) programs of LLNL (12-ERD-053). H.J. acknowledges the
support from NSF CMMI-1067947 and CMMI-1162619. The authors will like to
thank Dr R.J. Nikolic of LLNL to provide p-type silicon micropillars,
and Dr Tae Wook Heo of LLNL for useful discussions.
NR 44
TC 3
Z9 3
U1 8
U2 61
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 27
BP 17718
EP 17728
DI 10.1039/c5cp01385b
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CM6OX
UT WOS:000357809300024
PM 26082019
ER
PT J
AU Nguyen, TB
Bates, KH
Crounse, JD
Schwantes, RH
Zhang, X
Kjaergaard, HG
Surratt, JD
Lin, P
Laskin, A
Seinfeld, JH
Wennberg, PO
AF Nguyen, Tran B.
Bates, Kelvin H.
Crounse, John D.
Schwantes, Rebecca H.
Zhang, Xuan
Kjaergaard, Henrik G.
Surratt, Jason D.
Lin, Peng
Laskin, Alexander
Seinfeld, John H.
Wennberg, Paul O.
TI Mechanism of the hydroxyl radical oxidation of methacryloyl
peroxynitrate (MPAN) and its pathway toward secondary organic aerosol
formation in the atmosphere
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID SOUTHEASTERN UNITED-STATES; LIQUID PHASE-SEPARATION; OH-INITIATED
OXIDATION; NITRIC ANHYDRIDE MPAN; ISOPRENE PHOTOOXIDATION;
2-METHYLGLYCERIC ACID; SOA FORMATION; BIOGENIC COMPOUNDS;
MASS-SPECTROMETRY; ALPHA-PINENE
AB Methacryloyl peroxynitrate (MPAN), the acyl peroxynitrate of methacrolein, has been suggested to be an important secondary organic aerosol (SOA) precursor from isoprene oxidation. Yet, the mechanism by which MPAN produces SOA through reaction with the hydroxyl radical (OH) is unclear. We systematically evaluate three proposed mechanisms in controlled chamber experiments and provide the first experimental support for the theoretically-predicted lactone formation pathway from the MPAN + OH reaction, producing hydroxymethyl-methyl-a-lactone (HMML). The decomposition of the MPAN-OH adduct yields HMML + NO3 (similar to 75%) and hydroxyacetone + CO + NO3 (similar to 25%), out-competing its reaction with atmospheric oxygen. The production of other proposed SOA precursors, e.g., methacrylic acid epoxide (MAE), from MPAN and methacrolein are negligible (<2%). Furthermore, we show that the beta-alkenyl moiety of MPAN is critical for lactone formation. Alkyl radicals formed cold via H-abstraction by OH do not decompose to HMML, even if they are structurally identical to the MPAN-OH adduct. The SOA formation from HMML, from polyaddition of the lactone to organic compounds at the particle interface or in the condensed phase, is close to unity under dry conditions. However, the SOA yield is sensitive to particle liquid water and solvated ions. In hydrated inorganic particles, HMML reacts primarily with H2O to produce the monomeric 2-methylglyceric acid (2MGA) or with aqueous sulfate and nitrate to produce the associated organosulfate and organonitrate, respectively. 2MGA, a tracer for isoprene SOA, is semivolatile and its accommodation in aerosol water decreases with decreasing pH. Conditions that enhance the production of neutral 2MGA suppress SOA mass from the HMML channel. Considering the liquid water content and pH ranges of ambient particles, 2MGA will exist largely as a gaseous compound in some parts of the atmosphere.
C1 [Nguyen, Tran B.; Crounse, John D.; Schwantes, Rebecca H.; Zhang, Xuan; Wennberg, Paul O.] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA.
[Bates, Kelvin H.; Seinfeld, John H.] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA.
[Kjaergaard, Henrik G.] Univ Copenhagen, Dept Chem, DK-2100 Copenhagen, Denmark.
[Surratt, Jason D.] Univ N Carolina, Dept Environm Sci & Engn, Chapel Hill, NC USA.
[Lin, Peng; Laskin, Alexander] Pacific NW Natl Lab, WR Wiley Environm Mol Sci Lab, Richland, WA 99352 USA.
[Seinfeld, John H.; Wennberg, Paul O.] CALTECH, Div Engn & Appl Sci, Pasadena, CA 91125 USA.
RP Nguyen, TB (reprint author), CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA.
EM tbn@caltech.edu
RI Surratt, Jason/D-3611-2009; Kjaergaard, Henrik /H-4333-2014; Lin,
Peng/G-4867-2016; Laskin, Alexander/I-2574-2012; Crounse,
John/C-3700-2014
OI Surratt, Jason/0000-0002-6833-1450; Kjaergaard, Henrik
/0000-0002-7275-8297; Lin, Peng/0000-0002-3567-7017; Laskin,
Alexander/0000-0002-7836-8417; Crounse, John/0000-0001-5443-729X
FU U.S. National Science Foundation (NSF) Division of Atmospheric and
Geospace Sciences (AGS) [AGS-1240604]; U.S. Department of Energy (DOE)
[DE-SC0006626]; NSF postdoctoral research fellowship (PRF)
[AGS-1331360]; DOE's Office of Biological and Environmental Research and
located at PNNL; DOE [DE-AC06-76RL0 1830]
FX We acknowledge funding from the U.S. National Science Foundation (NSF)
Division of Atmospheric and Geospace Sciences (AGS) grant AGS-1240604
and the U.S. Department of Energy (DOE) grant DE-SC0006626. TBN is
supported by the NSF postdoctoral research fellowship (PRF) award
AGS-1331360. We thank Dr. Dennis Fitz (UC Riverside) for assistance with
the Fitz Aerometric NO2/APN instrument, Matthew Coggon
(Caltech) for AMS data collection and processing, Dr. Nathan F. Dalleska
(Caltech Global Environmental Center) for help with the HR-MS analysis
software and for use of the pH probe, and Dr. Avram Gold and Dr. Zhenfa
Zhang (University of North Carolina) for assistance in synthesizing MAE.
The HPLC-UV/Vis-ESI/HRMS analysis was performed at the W. R. Wiley
Environmental Molecular Sciences Laboratory (EMSL), a national
scientific user facility sponsored by the DOE's Office of Biological and
Environmental Research and located at PNNL. PNNL is operated for the DOE
by Battelle Memorial Institute under contract #DE-AC06-76RL0 1830.
NR 73
TC 14
Z9 15
U1 23
U2 95
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 27
BP 17914
EP 17926
DI 10.1039/c5cp02001h
PG 13
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CM6OX
UT WOS:000357809300048
PM 26095764
ER
PT J
AU Popov, I
Greenbaum, A
Sokolov, AP
Feldman, Y
AF Popov, Ivan
Greenbaum (Gutina), Anna
Sokolov, Alexei P.
Feldman, Yuri
TI The puzzling first-order phase transition in water-glycerol mixtures
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID LIQUID-LIQUID TRANSITION; GLASSY WATER; RELAXATION DYNAMICS;
AQUEOUS-SOLUTIONS; RICH MIXTURES; BEHAVIOR; ICE
AB Over the last decade, discussions on a possible liquid-liquid transition (LLT) have strongly intensified. The LLT proposed by several authors focused mostly on explaining the anomalous properties of water in a deeply supercooled state. However, there have been no direct experimental observations yet of LLT in bulk water in the so-called 'no man's land', where water exists only in the crystalline states. Recently, a novel experimental strategy to detect LLT in water has been employed using water-glycerol (W-G) mixtures, because glycerol can generate a strong hindrance for water crystallization. As a result, the observed first-order phase transition at a concentration of glycerol around c(g) approximate to 20 mol% was ascribed to the LLT. Here we show unambiguously that the first order phase transition in W-G mixtures is caused by the ice formation. We provide additional dielectric measurements, applying specific annealing temperature protocols in order to reinforce this conclusion. We also provide an explanation, why such a phase transition occurs only in the narrow glycerol concentration range. These results clearly demonstrate the danger of analysis of phase-separating liquids to gain better insights into water dynamics. These liquids have complex phase behavior that is affected by temperature, phase stability and segregation, viscosity and nucleation, and finally by crystallization, that might lead to significant misinterpretations.
C1 [Popov, Ivan; Greenbaum (Gutina), Anna; Feldman, Yuri] Hebrew Univ Jerusalem, Dept Appl Phys, IL-91904 Jerusalem, Israel.
[Popov, Ivan] Kazan Volga Reg Fed Univ, Inst Phys, Kazan 420008, Tatarstan, Russia.
[Sokolov, Alexei P.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Sokolov, Alexei P.] Univ Tennessee, Joint Inst Neutron Sci, Knoxville, TN 37996 USA.
[Sokolov, Alexei P.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Feldman, Y (reprint author), Hebrew Univ Jerusalem, Dept Appl Phys, Edmond J Safra Campus, IL-91904 Jerusalem, Israel.
EM yurif@mail.huji.ac.il
FU Valazzi-Pikovsky Fellowship (Lady Davis Fellowship); Russian Government
Program of Competitive Growth of Kazan Federal University; NSF Chemistry
program [CHE-1213444]
FX The authors are grateful to Prof. H. Tanaka for initiation of this work
and comprehensive discussions. The work was supported by the
Valazzi-Pikovsky Fellowship (Lady Davis Fellowship). The work was partly
supported by the Russian Government Program of Competitive Growth of
Kazan Federal University. APS thanks the NSF Chemistry program (grant
CHE-1213444) for partial financial support.
NR 31
TC 7
Z9 7
U1 0
U2 28
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 27
BP 18063
EP 18071
DI 10.1039/c5cp02851e
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CM6OX
UT WOS:000357809300065
PM 26100246
ER
PT S
AU Pogorelsky, IV
Ben-Zvi, I
Skaritka, J
Babzien, M
Polyanskiy, MN
Dover, N
Najmudin, Z
Lu, W
AF Pogorelsky, Igor V.
Ben-Zvi, Ilan
Skaritka, John
Babzien, Markus
Polyanskiy, Mikhail N.
Dover, Nicholas
Najmudin, Zulfikar
Lu, Wei
BE Jaroszynski, DA
TI New opportunities for strong-field LPI research in the mid-IR
SO RELATIVISTIC PLASMA WAVES AND PARTICLE BEAMS AS COHERENT AND INCOHERENT
RADIATION SOURCES
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Relativistic Plasma Waves and Particle Beams as Coherent
and Incoherent Radiation Sources
CY APR 15-16, 2015
CL Prague, CZECH REPUBLIC
SP SPIE
DE CO2 laser; ion acceleration; laser wake field; electron beams; Compton
scattering; THz radiation
ID HIGH-INTENSITY LASER; PULSE AMPLIFICATION; X-RAYS; DRIVEN; ACCELERATION;
GENERATION; RADIATION; CONTRAST; BEAMS
AB Over the last two decades, BNL's ATF has pioneered the use of high-peak power CO2 lasers for research in advanced accelerators and radiation sources. Our recent developments in ion acceleration, Compton scattering, and IFELs have further underscored the benefits from expanding the landscape of strong-field laser interactions deeper into the mid-infrared (MIR) range of wavelengths. This extension validates our ongoing efforts in advancing CO2 laser technology, which we report here. Our next-generation, multi-terawatt, femtosecond CO2 laser will open new opportunities for studying ultra-relativistic laser interactions with plasma in the MIR spectral domain. We will address new regimes in the particle acceleration of ions and electrons, as well as the radiations sources, ranging from THz to gamma-rays, that are enabled by the emerging ultra-fast CO2 lasers.
C1 [Pogorelsky, Igor V.; Ben-Zvi, Ilan; Skaritka, John; Babzien, Markus; Polyanskiy, Mikhail N.] Brookhaven Natl Lab, Accelerator Tests Facil, Upton, NY 11973 USA.
[Dover, Nicholas; Najmudin, Zulfikar] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England.
[Lu, Wei] Tsinghua Univ, Accelerator Lab, Beijing 100080, Peoples R China.
RP Pogorelsky, IV (reprint author), Brookhaven Natl Lab, Accelerator Tests Facil, Upton, NY 11973 USA.
RI Polyanskiy, Mikhail/E-8406-2010; Lu, Wei/F-2504-2016
NR 30
TC 1
Z9 1
U1 1
U2 10
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-630-5
J9 PROC SPIE
PY 2015
VL 9509
AR 95090P
DI 10.1117/12.2182005
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0SG
UT WOS:000357641000010
ER
PT J
AU Benzi, M
Klymko, C
AF Benzi, Michele
Klymko, Christine
TI ON THE LIMITING BEHAVIOR OF PARAMETER-DEPENDENT NETWORK CENTRALITY
MEASURES
SO SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS
LA English
DT Article
DE centrality; communicability; adjacency matrix; spectral gap; matrix
functions; network analysis; PageRank
ID COMPLEX NETWORKS; GAUSS QUADRATURE; MATRIX FUNCTIONS; LINK ANALYSIS;
BETWEENNESS; AUTHORITIES; PAGERANK; HUBS
AB We consider a broad class of walk-based, parameterized node centrality measures for network analysis. These measures are expressed in terms of functions of the adjacency matrix and generalize various well-known centrality indices, including Katz and subgraph centralities. We show that the parameter can be "tuned" to interpolate between degree and eigenvector centralities, which appear as limiting cases. Our analysis helps explain certain correlations often observed between the rankings obtained using different centrality measures and provides some guidance for the tuning of parameters. We also highlight the roles played by the spectral gap of the adjacency matrix and by the number of triangles in the network. Our analysis covers both undirected and directed networks, including weighted ones. A brief discussion of PageRank is also given.
C1 [Benzi, Michele] Emory Univ, Dept Math & Comp Sci, Atlanta, GA 30322 USA.
[Klymko, Christine] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94550 USA.
RP Benzi, M (reprint author), Emory Univ, Dept Math & Comp Sci, Atlanta, GA 30322 USA.
EM benzi@mathcs.emory.edu; klymko1@llnl.gov
FU National Science Foundation [DMS-1115692, DMS-1418889]; U.S. Department
of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
FX The work of this author was supported by National Science Foundation
grants DMS-1115692 and DMS-1418889.; The work of this author was
performed under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344.
NR 53
TC 13
Z9 13
U1 0
U2 8
PU SIAM PUBLICATIONS
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
SN 0895-4798
EI 1095-7162
J9 SIAM J MATRIX ANAL A
JI SIAM J. Matrix Anal. Appl.
PY 2015
VL 36
IS 2
BP 686
EP 706
DI 10.1137/130950550
PG 21
WC Mathematics, Applied
SC Mathematics
GA CM0YY
UT WOS:000357407800017
ER
PT S
AU Flenner, A
Culp, M
Mcgee, R
Flenner, J
Garcia-Cardona, C
AF Flenner, Arjuna
Culp, Michael
McGee, Ryan
Flenner, Jennifer
Garcia-Cardona, Cristina
BE Kadar, I
TI Learning representations for improved target identification, scene
classification, and information fusion
SO SIGNAL PROCESSING, SENSOR/INFORMATION FUSION, AND TARGET RECOGNITION
XXIV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Signal Processing, Sensor/Information Fusion, and Target
Recognition XXIV
CY APR 20-22, 2015
CL Baltimore, MD
SP SPIE
DE ATR; Non-parametric Bayes; Information Integration; Graphs; Factor
Analysis
ID DIFFUSE INTERFACE METHODS; HIGH-DIMENSIONAL DATA; DIRICHLET PROCESS;
SEGMENTATION; DICTIONARIES; REGRESSION; GRAPHS
AB Object representation is fundamental to Automated Target Recognition (ATR). Many ATR approaches choose a basis, such as a wavelet or Fourier basis, to represent the target. Recently, advancements in Image and Signal processing have shown that object recognition can be improved if, rather than a assuming a basis, a database of training examples is used to learn a representation. We discuss learning representations using Non-parametric Bayesian topic models, and demonstrate how to integrate information from other sources to improve ATR. We apply the method to EO and IR information integration for vehicle target identification and show that the learned representation of the joint EO and IR information improves target identification by 4%. Furthermore, we demonstrate that we can integrate text and imagery data to direct the representation for mission specific tasks and improve performance by 8%. Finally, we illustrate integrating graphical models into representation learning to improve performance by 2%.
C1 [Flenner, Arjuna; Culp, Michael; McGee, Ryan; Flenner, Jennifer] NAVAIR, China Lake, CA 93555 USA.
[Garcia-Cardona, Cristina] Los Alamos Natl Lab, Los Alamos, NM USA.
RP Flenner, A (reprint author), NAVAIR, 1900 N Knox Rd, China Lake, CA 93555 USA.
EM arjuna.flenner@navy.mil
NR 59
TC 0
Z9 0
U1 1
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-590-2
J9 PROC SPIE
PY 2015
VL 9474
AR 94740W
DI 10.1117/12.2176348
PG 16
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AD
UT WOS:000357014700038
ER
PT S
AU Sha, M
Gunatilaka, D
Wu, CJ
Lu, CY
AF Sha, Mo
Gunatilaka, Dolvara
Wu, Chengjie
Lu, Chenyang
BE Abdelzaher, T
Pereira, N
Tovar, E
TI Implementation and Experimentation of Industrial Wireless
Sensor-Actuator Network Protocols
SO WIRELESS SENSOR NETWORKS (EWSN 2015)
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 12th European Conference on Wireless Sensor Networks (EWSN)
CY FEB 09-11, 2015
CL Porto, PORTUGAL
AB Wireless sensor-actuator networks (WSANs) offer an appealing communication technology for process automation applications. However, such networks pose unique challenges due to their critical demands on reliability and real-time performance. While industrial WSANs have received attention in the research community, most published results to date focused on the theoretical aspects and were evaluated based on simulations. There is a critical need for experimental research on this important class of WSANs. We developed an experimental testbed by implementing several key network protocols of WirelessHART, an open standard for WSANs widely adopted in the process industries, including multi-channel TDMA with shared slots at the MAC layer and reliable graph routing supporting path redundancy. We then performed a comparative study of the two alternative routing approaches adopted by WirelessHART, namely source routing and graph routing. Our study shows that graph routing leads to significant improvement over source routing in term of worst-case reliability, at the cost of longer latency and higher energy consumption. It is therefore important to employ graph routing algorithms specifically designed to optimize latency and energy efficiency.
C1 [Sha, Mo; Gunatilaka, Dolvara; Wu, Chengjie; Lu, Chenyang] Washington Univ, Cyber Phys Syst Lab, St Louis, MO 63130 USA.
[Sha, Mo] Natl Renewable Energy Lab, Golden, CO USA.
RP Sha, M (reprint author), Washington Univ, Cyber Phys Syst Lab, St Louis, MO 63130 USA.
NR 13
TC 3
Z9 3
U1 0
U2 3
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-319-15582-1; 978-3-319-15581-4
J9 LECT NOTES COMPUT SC
PY 2015
VL 8965
BP 234
EP 241
PG 8
WC Computer Science, Artificial Intelligence; Computer Science, Theory &
Methods
SC Computer Science
GA BD0ST
UT WOS:000357677300015
ER
PT S
AU Grosklos, G
Theiler, J
AF Grosklos, Guen
Theiler, James
BE VelezReyes, M
Kruse, FA
TI Ellipsoids for Anomaly Detection in Remote Sensing Imagery
SO ALGORITHMS AND TECHNOLOGIES FOR MULTISPECTRAL, HYPERSPECTRAL, AND
ULTRASPECTRAL IMAGERY XXI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Algorithms and Technologies for Multispectral,
Hyperspectral, and Ultraspectral Imagery XXI
CY APR 21-23, 2015
CL Baltimore, MD
SP SPIE
DE Anomaly Detection; Multispectral Imagery; Hyperspectral Imagery;
Background Estimation; Low False Alarm Rate
ID COVARIANCE-MATRIX ESTIMATION; HYPERSPECTRAL IMAGING DATA; MODEL
AB For many target and anomaly detection algorithms, a key step is the estimation of a centroid (relatively easy) and a covariance matrix (somewhat harder) that characterize the background clutter. For a background that can be modeled as a multivariate Gaussian, the centroid and covariance lead to an explicit probability density function that can be used in likelihood ratio tests for optimal detection statistics. But ellipsoidal contours can characterize a much larger class of multivariate density function, and the ellipsoids that characterize the outer periphery of the distribution are most appropriate for detection in the low false alarm rate regime. Traditionally the sample mean and sample covariance are used to estimate ellipsoid location and shape, but these quantities are confounded both by large lever-arm outliers and non-Gaussian distributions within the ellipsoid of interest.
This paper compares a variety of centroid and covariance estimation schemes with the aim of characterizing the periphery of the background distribution. In particular, we will consider a robust variant of the Khachiyan algorithm for minimum-volume enclosing ellipsoid. The performance of these different approaches is evaluated on multispectral and hyperspectral remote sensing imagery using coverage plots of ellipsoid volume versus false alarm rate.
C1 [Grosklos, Guen; Theiler, James] Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
RP Grosklos, G (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
NR 38
TC 1
Z9 1
U1 2
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-588-9
J9 PROC SPIE
PY 2015
VL 9472
AR UNSP 94720P
DI 10.1117/12.2177061
PG 12
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0DU
UT WOS:000357086800024
ER
PT S
AU Theiler, J
AF Theiler, James
BE VelezReyes, M
Kruse, FA
TI Symmetrized Regression for Hyperspectral Background Estimation
SO ALGORITHMS AND TECHNOLOGIES FOR MULTISPECTRAL, HYPERSPECTRAL, AND
ULTRASPECTRAL IMAGERY XXI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Algorithms and Technologies for Multispectral,
Hyperspectral, and Ultraspectral Imagery XXI
CY APR 21-23, 2015
CL Baltimore, MD
SP SPIE
DE Background estimation; Target Detection; Anomaly Detection;
Hyperspectral imagery
ID TARGETS
AB We can improve the detection of targets and anomalies in a cluttered background by more effectively estimating that background. With a good estimate of what the target-free radiance or reflectance ought to be at a pixel, we have a point of comparison with what the measured value of that pixel actually happens to be. It is common to make this estimate using the mean of pixels in an annulus around the pixel of interest. But there is more information in the annulus than this mean value, and one can derive more general estimators than just the mean. The derivation pursued here is based on multivariate regression of the central pixel against the pixels in the surrounding annulus. This can be done on a band-by-band basis, or with multiple bands simultaneously.
For overhead remote sensing imagery with square pixels, there is a natural eight-fold symmetry in the surrounding annulus, corresponding to reflection and right angle rotation. We can use this symmetry to impose constraints on the estimator function, and we can use these constraints to reduce the number or regressor variables in the problem. This paper investigates the utility of regression generally - and a variety of different symmetric regression schemes particularly - for hyperspectral background estimation in the context of generic target detection.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Theiler, J (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
NR 38
TC 2
Z9 2
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-588-9
J9 PROC SPIE
PY 2015
VL 9472
AR 94721G
DI 10.1117/12.2177271
PG 12
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0DU
UT WOS:000357086800045
ER
PT S
AU Miller, J
Bishop, E
Doerry, A
Raynal, AM
AF Miller, J.
Bishop, E.
Doerry, A.
Raynal, A. M.
BE Zelnio, E
Garber, FD
TI Impact of Ground Mover Motion and Windowing on Stationary and Moving
Shadows in Synthetic Aperture Radar Imagery
SO ALGORITHMS FOR SYNTHETIC APERTURE RADAR IMAGERY XXII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Algorithms for Synthetic Aperture Radar Imagery XXII
CY APR 23, 2015
CL Baltimore, MD
SP SPIE
DE Shadow detection; Synthetic Aperture Radar; SAR; Video SAR; Ground mover
motion; Windowing; Motion frame imagery
AB This paper describes the impact of ground mover motion and windowing on stationary and moving shadows in Synthetic Aperture Radar (SAR) and video SAR mode imagery. The technique provides a foundation for optimizing algorithms that detect ground movers in SAR imagery. The video SAR mode provides a persistent view of a scene centered at the Motion Compensation Point (MCP). The radar platform follows a circular flight path. Detecting a stationary shadow in a SAR image is important because the shadow indicates a detection of an object with a height component near the shadow. Similarly, the detection of a shadow that moves from frame to frame indicates the detection of a ground mover at the location of the moving shadow. An approach analyzes the impact of windowing in calculating the brightness of a pixel in a stationary, finite-sized shadow region. An extension of the approach describes the pixel brightness for a moving shadow as a function of its velocity. The pixel brightness provides an upper bound on the Probability of Detection (PD) and a lower bound on the Probability of False Alarm (PFA) for a finite-sized, stationary or moving shadow in the presence of homogeneous, ideal clutter. Synthetic data provides shadow characteristics for a radar scenario that lend themselves for detecting a ground mover. The paper presents 2011-2014 flight data collected by General Atomics Aeronautical Systems, Inc. (GA-ASI).
C1 [Miller, J.; Bishop, E.] Gen Atom Aeronaut Syst Inc, San Diego, CA 92127 USA.
[Doerry, A.; Raynal, A. M.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Miller, J (reprint author), Gen Atom Aeronaut Syst Inc, 16761 Via Del Campo Ct, San Diego, CA 92127 USA.
NR 9
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-591-9
J9 PROC SPIE
PY 2015
VL 9475
AR 94750C
DI 10.1117/12.2179173
PG 18
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BC9TD
UT WOS:000356858900008
ER
PT J
AU Ramadhar, TR
Zheng, SL
Chen, YS
Clardy, J
AF Ramadhar, Timothy R.
Zheng, Shao-Liang
Chen, Yu-Sheng
Clardy, Jon
TI The crystalline sponge method: MOF terminal ligand effects
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID X-RAY-ANALYSIS; POROUS COMPLEXES; CRYSTALLOGRAPHY
AB Bromide and chloride analogs of the commonly used zinc iodide-based metal organic framework for the crystalline sponge method were synthesized and evaluated. Inclusion of (1R)-(-)- menthyl acetate into these MOFs was analysed using third-generation synchrotron radiation, and the effects and potential benefits of varying the MOF terminal ligand are discussed.
C1 [Ramadhar, Timothy R.; Clardy, Jon] Harvard Univ, Sch Med, Dept Biol Chem & Mol Pharmacol, Boston, MA 02115 USA.
[Zheng, Shao-Liang] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA.
[Chen, Yu-Sheng] Univ Chicago, ChemMatCARS, Ctr Adv Radiat Sources, Argonne Natl Lab,Adv Photon Source, Argonne, IL 60439 USA.
RP Clardy, J (reprint author), Harvard Univ, Sch Med, Dept Biol Chem & Mol Pharmacol, 240 Longwood Ave, Boston, MA 02115 USA.
EM jon_clardy@hms.harvard.edu
OI Ramadhar, Timothy/0000-0002-7063-5445
FU US National Institutes of Health [U19-AI109673, F32-GM108415]; Division
of Chemistry (CHE), National Science Foundation [NSF/CHE-1346572];
Division of Materials Research (DMR), National Science Foundation
[NSF/CHE-1346572]; US DOE [DE-AC02-06CH11357]
FX We are grateful for financial support through the US National Institutes
of Health (U19-AI109673 to J.C. and F32-GM108415 to T.R.R.). ChemMatCARS
Sector 15 is principally supported by the Divisions of Chemistry (CHE)
and Materials Research (DMR), National Science Foundation, under grant
number NSF/CHE-1346572. Use of the Advanced Photon Source, an Office of
Science User Facility operated for the US Department of Energy (DOE)
Office of Science by Argonne National Laboratory, was supported by the
US DOE under Contract No. DE-AC02-06CH11357.
NR 22
TC 21
Z9 21
U1 7
U2 51
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 56
BP 11252
EP 11255
DI 10.1039/c5cc03840e
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CL7SX
UT WOS:000357173100025
PM 26081991
ER
PT J
AU Cole, JM
Yeung, KYM
Pace, G
Sylvester, SO
Mersch, D
Friend, RH
AF Cole, J. M.
Yeung, K. Y. M.
Pace, G.
Sylvester, S. O.
Mersch, D.
Friend, R. H.
TI In situ synthesis, crystallisation, and thin-film processing of single
crystals of trans-[Ru(SO2)(NH3)(4)(H2O)][p-TolSO(3)](2) bearing SO2
linkage photo-isomers: towards optical device applications
SO CRYSTENGCOMM
LA English
DT Article
ID METASTABLE ELECTRONIC STATES; SULFUR-DIOXIDE COMPLEXES; NANOMECHANICAL
TRANSDUCTION; INFORMATION-STORAGE; PHOTOCRYSTALLOGRAPHY; PHOTOISOMERS;
DIFFRACTION; ROTORS
AB Metastable sulfur dioxide linkage photo-isomers can be generated in a family of ruthenium tetraamminebased complexes in their single-crystal form; this imparts them with attractive prospects as holographic data storage media (dark state = 0; photo-isomer state = 1). Embedding these optically encoded single crystals into thin-film technology via a polymer host should present one possible option for their ultimate device application. Crystals of trans-[Ru(SO2)(NH3)(4)(H2O)][p-TolSO(3)](2)([Ru]-SO2) were incorporated into a polyvinyl alcohol (PVA) matrix, by in situ synthesis of [Ru]-SO2 from the reaction of trans-[Ru(SO2)(NH3)(4)Cl]Cl and p-tolunesulfonic acid (p-TA) in the PVA matrix, and an associated in situ precipitating crystallisation. Transmission electron microscopy and diffraction on the resulting drop-cast thin films identified these [Ru]-SO2 precipitates and their crystallinity; low-temperature solid-state UV-vis absorption spectroscopy confirmed that the desired SO2 photo-isomerisation in [Ru]-SO2 was uncompromised by its inclusion in thin films. The size and distribution of the embedded crystals were optimised by spin coating thin films of various in situ crystallised precipitates of [Ru]-SO2 that emanated from chemical reaction mixtures of trans-[Ru(SO2)(NH3)(4)Cl]Cl/p-TA/ PVA. Results demonstrate the viability of the inclusion of single crystals of [Ru]-SO2 in thin films for optical device applications.
C1 [Cole, J. M.; Yeung, K. Y. M.; Pace, G.; Sylvester, S. O.; Mersch, D.; Friend, R. H.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
[Cole, J. M.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Cole, JM (reprint author), Univ Cambridge, Cavendish Lab, JJ Thomson Ave, Cambridge CB3 0HE, England.
EM jmc61@cam.ac.uk
RI Cole, Jacqueline/C-5991-2008
FU Argonne National Laboratory (Argonne, IL, USA); DOE Office of Science,
Office of Basic Energy Sciences [DE-AC02-06CH11357]; Cambridge
Commonwealth Trust; EPSRC Cambridge NanoDTC [EP/G037221/1]
FX J. M. C. thanks the Fulbright Commission for a UK-US Fulbright Scholar
Award hosted by Argonne National Laboratory (Argonne, IL, USA), where
work done was supported by DOE Office of Science, Office of Basic Energy
Sciences, under Contract no. DE-AC02-06CH11357. S. O. S. acknowledges
the Cambridge Commonwealth Trust for a PhD scholarship. This work was
also supported by the EPSRC Cambridge NanoDTC, EP/G037221/1 (for D.M.).
The authors are grateful to Dr. Anthony E. Phillips, formerly of the
Cavendish Laboratory, for providing a starting material for one of the
experiments; and to John J. Rickard from the electron microscopy
facility at the same laboratory, for technical assistance.
NR 22
TC 1
Z9 1
U1 1
U2 17
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1466-8033
J9 CRYSTENGCOMM
JI Crystengcomm
PY 2015
VL 17
IS 27
BP 5026
EP 5031
DI 10.1039/c5ce00685f
PG 6
WC Chemistry, Multidisciplinary; Crystallography
SC Chemistry; Crystallography
GA CM2NL
UT WOS:000357517400009
ER
PT S
AU Albert, F
Pollock, BB
Shaw, J
Marsh, KA
Ralph, JE
Pak, A
Clayton, CE
Glenzer, SH
Joshi, C
AF Albert, F.
Pollock, B. B.
Shaw, J.
Marsh, K. A.
Ralph, J. E.
Pak, A.
Clayton, C. E.
Glenzer, S. H.
Joshi, C.
BE Ledingham, KWD
Esarey, E
Spohr, K
Schroeder, CB
McKenna, P
Gruner, FJ
Bolton, PR
TI Betatron radiation from laser plasma accelerators
SO LASER ACCELERATION OF ELECTRONS, PROTONS, AND IONS III; AND MEDICAL
APPLICATIONS OF LASER-GENERATED BEAMS OF PARTICLES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Acceleration of Electrons, Protons, and Ions III and
Medical Applications of Laser-Generated Beams of Particles III
CY APR 13-15, 2015
CL Prague, CZECH REPUBLIC
SP SPIE
DE Betatron x-ray radiation; Laser-wakefield acceleration; laser-plasma
interaction
ID RAY THOMSON SCATTERING; WAKEFIELD ACCELERATOR; ELECTRON-BEAMS
AB We present recent experiments on the characterization of Betatron radiation in the blowout regime of laser-wakefield acceleration. We observed Betatron x-rays up to 80 keV, and the characterization of the angular dependence of the x-ray spectrum suggests anisotropic electron trajectories in the plasma. The characterization of the source opens up new possibilities for application experiments.
C1 [Albert, F.; Pollock, B. B.; Ralph, J. E.; Pak, A.] Lawrence Livermore Natl Lab, NIF & Photon Sci, Livermore, CA 94550 USA.
[Shaw, J.; Marsh, K. A.; Clayton, C. E.; Joshi, C.] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA.
[Glenzer, S. H.] Stanford Linear Accelerator Ctr, Natl Accelerator Ctr, Stanford, CA 94309 USA.
RP Albert, F (reprint author), Lawrence Livermore Natl Lab, NIF & Photon Sci, 700 East Ave, Livermore, CA 94550 USA.
EM albert6@llnl.gov
RI Albert, Felicie/G-2645-2013
NR 37
TC 0
Z9 0
U1 1
U2 14
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-635-0
J9 PROC SPIE
PY 2015
VL 9514
AR 95140X
DI 10.1117/12.2178685
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AK
UT WOS:000357019800011
ER
PT S
AU Bulanov, SS
Esarey, E
Schroeder, CB
Bulanov, SV
Esirkepov, TZ
Kando, M
Pegoraro, F
Leemans, WP
AF Bulanov, S. S.
Esarey, E.
Schroeder, C. B.
Bulanov, S. V.
Esirkepov, T. Zh.
Kando, M.
Pegoraro, F.
Leemans, W. P.
BE Ledingham, KWD
Esarey, E
Spohr, K
Schroeder, CB
McKenna, P
Gruner, FJ
Bolton, PR
TI Maximum attainable ion energy in the radiation pressure acceleration
regime.
SO LASER ACCELERATION OF ELECTRONS, PROTONS, AND IONS III; AND MEDICAL
APPLICATIONS OF LASER-GENERATED BEAMS OF PARTICLES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Acceleration of Electrons, Protons, and Ions III and
Medical Applications of Laser-Generated Beams of Particles III
CY APR 13-15, 2015
CL Prague, CZECH REPUBLIC
SP SPIE
ID INTENSE LASER-PULSES; ULTRA-INTENSE; UNDERDENSE PLASMA; FAST IGNITION;
PROTON-BEAMS; GENERATION; ELECTRODYNAMICS; PHYSICS
AB The laser group velocity plays a crucial role in laser driven acceleration of electrons and ions. In particular, a highly efficient mechanism of laser driven ion acceleration, Radiation Pressure Acceleration, has a fundamental limit on the maximum attainable ion energy, which is determined by the group velocity of the laser. However there is another limiting factor that may shed the group velocity effects. It is due to the transverse expansion of the target, which happens in the course of a tightly focused laser pulse interaction with a thin foil. Transversely expanding targets become increasingly transparent for radiation thus terminating the acceleration. Utilization of an external guiding structure for the accelerating laser pulse may provide a way of compensating for the group velocity and transverse expansion effects.
C1 [Bulanov, S. S.; Esarey, E.; Schroeder, C. B.; Leemans, W. P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Bulanov, S. V.; Esirkepov, T. Zh.; Kando, M.] JAEA, Kansai Photon Sci Inst, Kyoto 6190215, Japan.
[Bulanov, S. V.] Russian Acad Sci, Prokhorov Inst Gen Phys, Moscow 119991, Russia.
[Bulanov, S. V.] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia.
[Pegoraro, F.] Univ Pisa, Dept Phys, I-56127 Pisa, Italy.
[Pegoraro, F.] CNR, Ist Nazl Ott, I-56127 Pisa, Italy.
RP Bulanov, SS (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
OI Schroeder, Carl/0000-0002-9610-0166
NR 58
TC 0
Z9 0
U1 0
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-635-0
J9 PROC SPIE
PY 2015
VL 9514
AR 95140G
DI 10.1117/12.2182207
PG 12
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AK
UT WOS:000357019800006
ER
PT S
AU Chen, YH
Helle, MH
Ting, A
Gordon, DF
Polyanskiy, MN
Pogorelsky, I
Babzien, M
Najmudin, Z
AF Chen, Y. -H.
Helle, M. H.
Ting, A.
Gordon, D. F.
Polyanskiy, M. N.
Pogorelsky, I.
Babzien, M.
Najmudin, Z.
BE Ledingham, KWD
Esarey, E
Spohr, K
Schroeder, CB
McKenna, P
Gruner, FJ
Bolton, PR
TI Observation of monoenergetic protons from a near-critical gas target
tailored by a hydrodynamic shock
SO LASER ACCELERATION OF ELECTRONS, PROTONS, AND IONS III; AND MEDICAL
APPLICATIONS OF LASER-GENERATED BEAMS OF PARTICLES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Acceleration of Electrons, Protons, and Ions III and
Medical Applications of Laser-Generated Beams of Particles III
CY APR 13-15, 2015
CL Prague, CZECH REPUBLIC
SP SPIE
DE laser acceleration of protons; ion acceleration; shock wave
acceleration; laser hole boring; CO2 lasers; near-critical plasmas
ID ION-ACCELERATION; BEAMS
AB We present our recent experimental results of monoenergetic protons accelerated from the interaction of an intense terawatt CO2 laser pulse with a near-critical hydrogen gas target, with its density profile tailored by a hydrodynamic shock. A 5-ns Nd: YAG laser pulse is focused onto a piece of stainless steel foil mounted at the front edge of the gas jet nozzle orifice. The ablation launches a spherical shock into the near-critical gas column, which creates a sharp density gradient at the front edge of the target, with similar to 6X local density enhancement up to several times of critical density within similar to< 100 microns. With such density profile, we have obtained monoenergetic proton beams with good shot-to-shot reproducibility and energies up to 1.2 MeV.
C1 [Chen, Y. -H.; Helle, M. H.; Ting, A.; Gordon, D. F.] Naval Res Lab, Plasma Phys Div, Washington, DC 20375 USA.
[Polyanskiy, M. N.; Pogorelsky, I.; Babzien, M.] Brookhaven Natl Lab, Accelerator Test Facil, Upton, NY 11973 USA.
[Najmudin, Z.] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England.
RP Chen, YH (reprint author), Naval Res Lab, Plasma Phys Div, Washington, DC 20375 USA.
EM yu-hsin.chen.ctr@nrl.navy.mil
RI Chen, Yu-hsin/I-3400-2012; Polyanskiy, Mikhail/E-8406-2010
OI Chen, Yu-hsin/0000-0002-9603-7371;
NR 11
TC 1
Z9 1
U1 2
U2 10
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-635-0
J9 PROC SPIE
PY 2015
VL 9514
AR 95140C
DI 10.1117/12.2182094
PG 6
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AK
UT WOS:000357019800005
ER
PT S
AU Desforges, FG
Paradkar, BS
Hansson, M
Audet, TL
Ju, J
Gallardo-Gonzalez, I
Aurand, B
Lee, P
Senje, L
Persson, A
Dufrenoy, SD
Lundh, O
Maynard, G
Monot, P
Vay, JL
Wahlstrom, CG
Cros, B
AF Desforges, F. G.
Paradkar, B. S.
Hansson, M.
Audet, T. L.
Ju, J.
Gallardo-Gonzalez, I.
Aurand, B.
Lee, P.
Senje, L.
Persson, A.
Dufrenoy, S. Dobosz
Lundh, O.
Maynard, G.
Monot, P.
Vay, J. L.
Wahlstrom, C. -G.
Cros, B.
BE Ledingham, KWD
Esarey, E
Spohr, K
Schroeder, CB
McKenna, P
Gruner, FJ
Bolton, PR
TI Analysis of Electron Injection in Laser Wakefield Acceleration Using
Betatron Emission in Capillary Tubes
SO LASER ACCELERATION OF ELECTRONS, PROTONS, AND IONS III; AND MEDICAL
APPLICATIONS OF LASER-GENERATED BEAMS OF PARTICLES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Acceleration of Electrons, Protons, and Ions III and
Medical Applications of Laser-Generated Beams of Particles III
CY APR 13-15, 2015
CL Prague, CZECH REPUBLIC
SP SPIE
DE Laser-wakefield acceleration; betatron radiation; self-injection;
ionization-induced injection
ID WAKE-FIELD ACCELERATION; BEAMS; IONIZATION; CHANNEL; WAVE
AB The dynamics of ionization-induced electron injection in the high density (similar to 1.2 x 10(19)cm(-3)) regime of Laser Wakefield Acceleration (LWFA) was investigated by analyzing betatron X-ray emission inside dielectric capillary tubes. A comparative study of the electron and betatron X-ray properties was performed for both self-injection and ionization-induced injection. Direct experimental evidence of early onset of ionization-induced injection into the plasma wave was obtained by mapping the X-ray emission zone inside the plasma. Particle-In-Cell (PIC) simulations showed that the early onset of ionization-induced injection, due to its lower trapping threshold, suppresses self-injection of electrons. An increase of X-ray fluence by at least a factor of two was observed in the case of ionization-induced injection due to an increased trapped charge compared to self-injection mechanism.
C1 [Desforges, F. G.; Paradkar, B. S.; Audet, T. L.; Ju, J.; Lee, P.; Maynard, G.; Cros, B.] Univ Paris 11, CNRS, Lab Phys Gaz & Plasmas, F-91405 Orsay, France.
[Hansson, M.; Gallardo-Gonzalez, I.] Lund Univ, Dept Phys, S-22100 Lund, Sweden.
[Dufrenoy, S. Dobosz] CEA Saclay, Lab Interact Dynam & Lasers, F-91191 Gif Sur Yvette, France.
[Vay, J. L.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Desforges, FG (reprint author), Univ Paris 11, CNRS, Lab Phys Gaz & Plasmas, F-91405 Orsay, France.
EM frederic.desforges@u-psud.fr; brigitte.cros@u-psud.fr
NR 35
TC 0
Z9 0
U1 4
U2 8
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-635-0
J9 PROC SPIE
PY 2015
VL 9514
AR 95140Z
DI 10.1117/12.2178654
PG 11
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AK
UT WOS:000357019800012
ER
PT S
AU Schroeder, CB
Benedetti, C
Bulanov, SS
Chen, M
Esarey, E
Geddes, CGR
Vay, JL
Yu, LL
Leemans, WP
AF Schroeder, C. B.
Benedetti, C.
Bulanov, S. S.
Chen, M.
Esarey, E.
Geddes, C. G. R.
Vay, J. -L.
Yu, L. -L.
Leemans, W. P.
BE Ledingham, KWD
Esarey, E
Spohr, K
Schroeder, CB
McKenna, P
Gruner, FJ
Bolton, PR
TI Ultra-low emittance beam generation using two-color ionization injection
in laser-plasma accelerators
SO LASER ACCELERATION OF ELECTRONS, PROTONS, AND IONS III; AND MEDICAL
APPLICATIONS OF LASER-GENERATED BEAMS OF PARTICLES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Acceleration of Electrons, Protons, and Ions III and
Medical Applications of Laser-Generated Beams of Particles III
CY APR 13-15, 2015
CL Prague, CZECH REPUBLIC
SP SPIE
DE Laser plasma accelerator; ionization injection
AB Ultra-low emittance (tens of nm) beams can be generated in a plasma accelerator using ionization injection of electrons into a wakefield. An all-optical method of beam generation uses two laser pulses of different colors. A long-wavelength drive laser pulse (with a large ponderomotive force and small peak electric field) is used to excite a large wakefield without fully ionizing a gas, and a short-wavelength injection laser pulse (with a small ponderomotive force and large peak electric field), co-propagating and delayed with respect to the pump laser, to ionize a fraction of the remaining bound electrons at a trapped wake phase, generating an electron beam that is accelerated in the wake. The trapping condition, the ionized electron distribution, and the trapped bunch dynamics are discussed. Expressions for the beam transverse emittance, parallel and orthogonal to the ionization laser polarization, are derived. An example is presented using a 10-mu m CO2 laser to drive the wake and a frequency-doubled Ti:Al2O3 laser for ionization injection.
C1 [Schroeder, C. B.; Benedetti, C.; Bulanov, S. S.; Esarey, E.; Geddes, C. G. R.; Vay, J. -L.; Leemans, W. P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Chen, M.; Yu, L. -L.] Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China.
RP Schroeder, CB (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM CBSchroeder@lbl.gov
RI Yu, Lule/P-2566-2015; Chen, Min/A-9955-2010;
OI Chen, Min/0000-0002-4290-9330; Schroeder, Carl/0000-0002-9610-0166
NR 14
TC 0
Z9 0
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-635-0
J9 PROC SPIE
PY 2015
VL 9514
AR 951408
DI 10.1117/12.2178577
PG 7
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AK
UT WOS:000357019800002
ER
PT S
AU Yu, LL
Schroeder, CB
Esarey, E
Benedetti, C
Vay, JL
Chen, M
Sheng, ZM
AF Yu, L. -L.
Schroeder, C. B.
Esarey, E.
Benedetti, C.
Vay, J. -L.
Chen, M.
Sheng, Z. -M.
BE Ledingham, KWD
Esarey, E
Spohr, K
Schroeder, CB
McKenna, P
Gruner, FJ
Bolton, PR
TI Emittance control of electron and positron beams in laser plasma
accelerators
SO LASER ACCELERATION OF ELECTRONS, PROTONS, AND IONS III; AND MEDICAL
APPLICATIONS OF LASER-GENERATED BEAMS OF PARTICLES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Acceleration of Electrons, Protons, and Ions III and
Medical Applications of Laser-Generated Beams of Particles III
CY APR 13-15, 2015
CL Prague, CZECH REPUBLIC
SP SPIE
DE laser wakefield; transverse emittance; positron; laser mode; two-color
laser-ionization
AB We propose to use a combination of Hermite-Gaussian laser modes to generate a nonlinear ring bubble with a large longitudinal accelerating field and a transverse focusing field suitable for positron beam focusing and acceleration. The nonlinear bubble can provide higher accelerating gradients compared with a linear plasma wake. PIC simulations have been used to demonstrate control of the focusing force by changing the relative intensity ratio of the two laser modes, enabling matched positron beam propagation for emittance preservation. In addition, in order to improve phase space characteristics of laser wakefield produced electron beams, in particular, to reduce their transverse emittance, we propose to generate femtosecond electron beams with ultra-low emittance using a two-color laser-ionization injection method. By controlling the amplitude and the duration of the injection pulse, the emittance can be controlled to the level of 10(-2) mm mrad.
C1 [Yu, L. -L.; Chen, M.; Sheng, Z. -M.] Shanghai Jiao Tong Univ, Key Lab Lasar Plasmas, Minist Educ, Dept Phys & Astron,IFSA Collabrotat Innovat Ctr, Shanghai 200240, Peoples R China.
[Schroeder, C. B.; Esarey, E.; Benedetti, C.; Vay, J. -L.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Yu, LL (reprint author), Shanghai Jiao Tong Univ, Key Lab Lasar Plasmas, Minist Educ, Dept Phys & Astron,IFSA Collabrotat Innovat Ctr, Shanghai 200240, Peoples R China.
EM LuleYu@sjtu.edu.cn
RI Chen, Min/A-9955-2010; Sheng, Zheng-Ming/H-5371-2012; Yu,
Lule/P-2566-2015;
OI Chen, Min/0000-0002-4290-9330; Schroeder, Carl/0000-0002-9610-0166
NR 18
TC 0
Z9 0
U1 2
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-635-0
J9 PROC SPIE
PY 2015
VL 9514
AR 95140P
DI 10.1117/12.2178882
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AK
UT WOS:000357019800007
ER
PT S
AU Anderson, BM
Venus, G
Ott, D
Hale, E
Divliansky, I
Drachenberg, DR
Dawson, J
Messerly, MJ
Pax, PH
Tassano, JB
Glebov, LB
AF Anderson, Brian M.
Venus, George
Ott, Dan
Hale, Evan
Divliansky, Ivan
Drachenberg, Derrek R.
Dawson, Jay
Messerly, Mike J.
Pax, Paul H.
Tassano, John B.
Glebov, Leonid B.
BE Dubinskii, M
Post, SG
TI Higher order mode selection for power scaling in laser resonators using
transmitting Bragg gratings
SO LASER TECHNOLOGY FOR DEFENSE AND SECURITY XI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Technology for Defense and Security XI
CY APR 21-22, 2015
CL Baltimore, MD
SP SPIE
DE Multiplexed VBG; PTR; higher order mode; ribbon fiber; mode selection;
mode conversion
ID RIBBON FIBER LASER; AMPLIFIERS; OPERATION; AREA
AB Power scaling using a higher order mode in a ribbon fiber has previously been proposed. However, methods of selecting the higher order mode and converting to a single lobe high brightness beam are needed. We propose using a multiplexed transmitting Bragg grating (MTBG) to convert a higher order mode into a single lobe beam. Using a ribbon fiber with core dimensions of 107.8 mu m by 8.3 mu m, we use the MTBG to select a higher order mode oscillating within the resonator with 51.4% efficiency, while simultaneously converting the higher order mode to a beam with diffraction limited divergence of 10.2 mrad containing 60% of the total power.
C1 [Anderson, Brian M.; Venus, George; Ott, Dan; Hale, Evan; Divliansky, Ivan; Glebov, Leonid B.] Univ Cent Florida, Coll Opt & Photon, CREOL, Orlando, FL 32816 USA.
[Drachenberg, Derrek R.; Dawson, Jay; Messerly, Mike J.; Pax, Paul H.; Tassano, John B.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Anderson, BM (reprint author), Univ Cent Florida, Coll Opt & Photon, CREOL, POB 162700, Orlando, FL 32816 USA.
NR 20
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-582-7
J9 PROC SPIE
PY 2015
VL 9466
AR 94660C
DI 10.1117/12.2177060
PG 9
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0IY
UT WOS:000357259200006
ER
PT J
AU Ghandi, K
Findlater, AD
Mahimwalla, Z
MacNeil, CS
Awoonor-Williams, E
Zahariev, F
Gordon, MS
AF Ghandi, Khashayar
Findlater, Alexander D.
Mahimwalla, Zahid
MacNeil, Connor S.
Awoonor-Williams, Ernest
Zahariev, Federico
Gordon, Mark S.
TI Ultra-fast electron capture by electrosterically-stabilized gold
nanoparticles
SO NANOSCALE
LA English
DT Article
ID IMIDAZOLIUM IONIC LIQUIDS; GAMMA-RADIATION; METAL NANOPARTICLES; OXIDE
NANOPARTICLES; HYDROGEN-PRODUCTION; SOLVATED ELECTRONS; EXCESS
ELECTRONS; CRYSTALLINE ICE; CANCER-THERAPY; QUANTUM DOTS
AB Ultra-fast pre-solvated electron capture has been observed for aqueous solutions of room-temperature ionic liquid (RTIL) surface-stabilized gold nanoparticles (AuNPs; similar to 9 nm). The extraordinarily large inverse temperature dependent rate constants (k(e) similar to 5 x 10(14) M-1 s(-1)) measured for the capture of electrons in solution suggest electron capture by the AuNP surface that is on the timescale of, and therefore in competition with, electron solvation and electron-cation recombination reactions. The observed electron transfer rates challenge the conventional notion that radiation induced biological damage would be enhanced in the presence of AuNPs. On the contrary, AuNPs stabilized by non-covalently bonded ligands demonstrate the potential to quench radiation-induced electrons, indicating potential applications in fields ranging from radiation therapy to heterogeneous catalysis.
C1 [Ghandi, Khashayar; Mahimwalla, Zahid; MacNeil, Connor S.; Awoonor-Williams, Ernest] Mt Allison Univ, Dept Chem & Biochem, Sackville, NB E4L 1G8, Canada.
[Findlater, Alexander D.; Zahariev, Federico; Gordon, Mark S.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
[Findlater, Alexander D.; Zahariev, Federico; Gordon, Mark S.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RP Ghandi, K (reprint author), Mt Allison Univ, Dept Chem & Biochem, Sackville, NB E4L 1G8, Canada.
EM kghandi@mta.ca
FU National Sciences and Engineering Research Council of Canada; New
Brunswick Innovation Foundation; US Department of Energy, Office of
Basic Energy Sciences, Division of Chemical Sciences, Geosciences and
Biosciences through the Ames Laboratory PCTC Chemical Physics;
Homogeneous and Interfacial Catalysis project; U.S. Department of Energy
[8, DE-AC02-07CH11358]; U.S. National Science Foundation Software
Infrastructure (SI2) grant [ACI - 1047772]
FX This work was supported by funding from the National Sciences and
Engineering Research Council of Canada and New Brunswick Innovation
Foundation. MSG and FZ were supported by a grant to the US Department of
Energy, Office of Basic Energy Sciences, Division of Chemical Sciences,
Geosciences and Biosciences through the Ames Laboratory PCTC Chemical
Physics, and Homogeneous and Interfacial Catalysis project. The Ames
Laboratory is operated for the U.S. Department of Energy by Iowa State
University under contract 8 no. DE-AC02-07CH11358. AF was supported by a
U.S. National Science Foundation Software Infrastructure (SI2) grant,
ACI - 1047772. The authors thank the staff at the Centre for Molecular
and Materials Science (CMMS) facility at TRIUMF for their technical
expertise and all the support they provide. We also thank Marco
Farren-Dai for his help with experiments at TRIUMF.
NR 70
TC 1
Z9 1
U1 2
U2 21
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 27
BP 11545
EP 11551
DI 10.1039/c5nr02291f
PG 7
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CM0WL
UT WOS:000357399600008
PM 26036895
ER
PT S
AU Martin, MZ
Fox, RV
Miziolek, AW
DeLucia, FC
Andre, N
AF Martin, Madhavi Z.
Fox, Robert V.
Miziolek, Andrzej W.
DeLucia, Frank C., Jr.
Andre, Nicolas
BE Druy, MA
Crocombe, RA
Bannon, DP
TI Spectral Analysis of Rare Earth Elements using Laser-Induced Breakdown
Spectroscopy
SO NEXT-GENERATION SPECTROSCOPIC TECHNOLOGIES VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Next-Generation Spectroscopic Technologies VIII
CY APR 20-22, 2015
CL Baltimore, MD
SP SPIE
DE Laser-induced breakdown spectroscopy; LIBS of rare earth magnets; LIBS
for detection rare earth elements
ID SPECTROMETRY
AB There is growing interest in rapid analysis of rare earth elements (REEs) both due to the need to find new natural sources to satisfy increased demand in their use in various electronic devices, as well as the fact that they are used to estimate actinide masses for nuclear safeguards and nonproliferation. Laser-Induced Breakdown Spectroscopy (LIBS) appears to be a particularly well-suited spectroscopy-based technology to rapidly and accurately analyze the REEs in various matrices at low concentration levels (parts-per-million). Although LIBS spectra of REEs have been reported for a number of years, further work is still necessary in order to be able to quantify the concentrations of various REEs in real-world complex samples. LIBS offers advantages over conventional solution-based radiochemistry in terms of cost, analytical turnaround, waste generation, personnel dose, and contamination risk. Rare earth elements of commercial interest are found in the following three matrix groups: 1) raw ores and unrefined materials, 2) as components in refined products such as magnets, lighting phosphors, consumer electronics (which are mostly magnets and phosphors), catalysts, batteries, etc., and 3) waste/recyclable materials (aka e-waste). LIBS spectra for REEs such as Gd, Nd, and Sm found in rare earth magnets are presented.
C1 [Martin, Madhavi Z.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Fox, Robert V.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Miziolek, Andrzej W.; DeLucia, Frank C., Jr.] US Army, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
[Andre, Nicolas] Univ Tennessee, Ctr Renewable Carbon, Knoxville, TN 37831 USA.
RP Martin, MZ (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM Martinm1@ornl.gov
OI Martin, Madhavi/0000-0002-6677-2180
NR 22
TC 0
Z9 0
U1 3
U2 9
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-598-8
J9 PROC SPIE
PY 2015
VL 9482
AR 94820G
DI 10.1117/12.2178192
PG 8
WC Optics; Spectroscopy
SC Optics; Spectroscopy
GA BD0AF
UT WOS:000357016100011
ER
PT J
AU Faney, T
Krasheninnikov, SI
Wirth, BD
AF Faney, T.
Krasheninnikov, S. I.
Wirth, B. D.
TI Spatially dependent cluster dynamics model of He plasma surface
interaction in tungsten for fusion relevant conditions
SO NUCLEAR FUSION
LA English
DT Article; Proceedings Paper
CT 25th IAEA Fusion Energy Conference (FEC)
CY 2014
CL St Petersburg, RUSSIA
SP IAEA
DE cluster dynamics; plasma facing materials; modelling; fusion; helium;
tungsten
ID HELIUM IRRADIATED TUNGSTEN; ALPHA-IRON; RETENTION
AB In fusion reactors, plasma facing components (PFC) and, in particular, the divertor will be irradiated with high fluxes of low-energy (similar to 100 eV) helium and hydrogen ions. Tungsten is one of the leading candidate divertor materials for ITER and DEMO fusion reactors. However, the behaviour of tungsten under high dose, coupled helium/hydrogen exposure remains to be fully understood. The PFC response and performance changes are intimately related to microstructural changes, such as the formation of point defect clusters, helium and hydrogen bubbles or dislocation loops. Computational materials' modelling results are described here that investigate the mechanisms controlling microstructural evolution in tungsten. The aim of this study is to understand and predict sub-surface helium bubble growth under high flux helium ion implantation (similar to 1022 m(-2) s(-1)) at high temperatures (>1000 K). We report results from a spatially dependent cluster dynamics model based on reaction-diffusion rate theory to describe the evolution of the microstructure under these conditions. The key input parameters to the model (diffusion coefficients, migration and binding energies, initial defect production) are determined from a combination of atomistic modelling and available experimental data. The results are in good agreement with results of an analytical model that is presented in a separate paper. In particular, it is found that the sub-surface evolution with respect to bubble size and concentration of the helium bubbles strongly depends on the flux and temperature.
C1 [Faney, T.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
[Krasheninnikov, S. I.] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA.
[Wirth, B. D.] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA.
[Wirth, B. D.] Oak Ridge Natl Lab, Knoxville, TN USA.
EM tibo@berkeley.edu
RI Wirth, Brian/O-4878-2015
OI Wirth, Brian/0000-0002-0395-0285
FU US Department of Energy, Office of Fusion Energy Sciences
[DE-SC00-02060]; Scientific Discovery through Advanced Computing program
on Plasma Surface Interactions - US DOE, Office of Science, Advanced
Scientific Computing Research and Fusion Energy Science
FX The authors thank the PSI Plasma Science Center and the PSI SciDAC
project. Financial support has been provided by the US Department of
Energy, Office of Fusion Energy Sciences through grant DE-SC00-02060 and
the Scientific Discovery through Advanced Computing program on Plasma
Surface Interactions, funded by US DOE, Office of Science, Advanced
Scientific Computing Research and Fusion Energy Science.
NR 21
TC 9
Z9 9
U1 6
U2 32
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 JAN
PY 2015
VL 55
IS 1
AR 013014
DI 10.1088/0029-5515/55/1/013014
PG 14
WC Physics, Fluids & Plasmas
SC Physics
GA CM3PU
UT WOS:000357595900008
ER
PT J
AU Zhang, G
Webster, C
Gunzburger, M
Burkardt, J
AF Zhang, G.
Webster, C.
Gunzburger, M.
Burkardt, J.
TI A HYPERSPHERICAL ADAPTIVE SPARSE-GRID METHOD FOR HIGH-DIMENSIONAL
DISCONTINUITY DETECTION
SO SIAM JOURNAL ON NUMERICAL ANALYSIS
LA English
DT Article
DE discontinuity detection; hyperspherical coordinate system; adaptive
sparse grid; rare events; hierarchical acceleration
ID PARTIAL-DIFFERENTIAL-EQUATIONS; STOCHASTIC COLLOCATION METHOD; RANDOM
INPUT DATA; INTEGRATION; QUADRATURE
AB This work proposes and analyzes a hyperspherical adaptive hierarchical sparse-grid method for detecting jump discontinuities of functions in high-dimensional spaces. The method is motivated by the theoretical and computational inefficiencies of well-known adaptive sparse-grid methods for discontinuity detection. Our novel approach constructs a function representation of the discontinuity hypersurface of an N-dimensional discontinuous quantity of interest, by virtue of a hyperspherical transformation. Then, a sparse-grid approximation of the transformed function is built in the hyperspherical coordinate system, whose value at each point is estimated by solving a one-dimensional discontinuity detection problem. Due to the smoothness of the hypersurface, the new technique can identify jump discontinuities with significantly reduced computational cost, compared to existing methods. Moreover, hierarchical acceleration techniques are also incorporated to further reduce the overall complexity. Rigorous complexity analyses of the new method are provided as are several numerical examples that illustrate the effectiveness of the approach.
C1 [Zhang, G.; Webster, C.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
[Gunzburger, M.; Burkardt, J.] Florida State Univ, Dept Comp Sci, Tallahassee, FL 32306 USA.
RP Zhang, G (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
EM zhangg@ornl.gov; webstercg@ornl.gov; gunzburg@fsu.edu; jburkardt@fsu.edu
OI Zhang, Guannan/0000-0001-7256-150X
FU U.S. Air Force of Scientific Research [1854-V521-12, FA9550-11-1-0149];
U.S. Department of Energy, Office of Science, Office of Advanced
Scientific Computing Research, Applied Mathematics program [ERKJ259,
ERKJE45, DE-SC0010678]; Laboratory Directed Research and Development
program at the Oak Ridge National Laboratory - U.S. Department of Energy
[DE-AC05-00OR22725]
FX The research of the authors was supported in part by the U.S. Air Force
of Scientific Research under grants 1854-V521-12 and FA9550-11-1-0149;
by the U.S. Department of Energy, Office of Science, Office of Advanced
Scientific Computing Research, Applied Mathematics program under
contract, and award, ERKJ259, ERKJE45, and DE-SC0010678; and by the
Laboratory Directed Research and Development program at the Oak Ridge
National Laboratory, which is operated by UT-Battelle, LLC., for the
U.S. Department of Energy under contract DE-AC05-00OR22725.
NR 26
TC 2
Z9 2
U1 1
U2 4
PU SIAM PUBLICATIONS
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
SN 0036-1429
EI 1095-7170
J9 SIAM J NUMER ANAL
JI SIAM J. Numer. Anal.
PY 2015
VL 53
IS 3
BP 1508
EP 1536
DI 10.1137/140971531
PG 29
WC Mathematics, Applied
SC Mathematics
GA CM0YX
UT WOS:000357407600015
ER
PT J
AU Krzyzanowski, N
Porcar, L
Garg, S
Butler, P
Castro-Roman, F
Bautista, PJ
Perez-Salas, U
AF Krzyzanowski, Natalie
Porcar, Lionel
Garg, Sumit
Butler, Paul
Castro-Roman, Francisco
Jesus Bautista, Pedro
Perez-Salas, Ursula
TI Reply to the 'Comment on "Cholesterol Solubility Limit in Lipid
Membranes probed by Small Angle Neutron Scattering and MD simulations"'
by R. Epand, Soft Matter, 2015, 11, DOI: 10.1039/C4SM02819H
SO SOFT MATTER
LA English
DT Editorial Material
ID DOMAIN FORMATION; BILAYERS; PHOSPHOLIPIDS; SEPARATION; MIXTURES; EPR
AB In the comment by Epand et al. on our recent article, it is stated that the term "cholesterol solubility limit" is misused. As Epand et al. point out, there is extensive literature on cholesterol phase separation in phospholipid bilayers and this term is used to define the appearance of cholesterol crystals. Moreover, as they state, this does not preclude them from existing as bilayered crystals or cholesterol-only domains within the membrane itself. Since our SANS data directly measured the maximum amount of cholesterol harboured by POPC and POPS membranes, it may have been more appropriate to use the term "cholesterol saturation limit". Nonetheless, we stated that the saturation and solubility limits of cholesterol coincide in both POPC and POPS. Epand and et al. suggest that the data shown was insufficient to uphold this claim. Herein, we present data that supports the coincidence of cholesterol's saturation limit with cholesterol's solubility limit in 100 nm POPS unilamellar vesicles, where previously it has been reported to not be the case.
C1 [Krzyzanowski, Natalie; Garg, Sumit; Perez-Salas, Ursula] Univ Illinois, Dept Phys, Chicago, IL 60607 USA.
[Porcar, Lionel] Inst Laue Langevin, Large Scale Struct Grp, F-38042 Grenoble, France.
[Porcar, Lionel; Butler, Paul] Univ Delaware, Dept Chem Engn, Colburn Lab, Newark, DE USA.
[Garg, Sumit; Perez-Salas, Ursula] Argonne Natl Lab, Div Mat Sci, Lemont, IL USA.
[Butler, Paul] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Castro-Roman, Francisco; Jesus Bautista, Pedro] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico.
RP Perez-Salas, U (reprint author), Univ Illinois, Dept Phys, Chicago, IL 60607 USA.
EM ursulaps@uic.edu
RI Butler, Paul/D-7368-2011
NR 17
TC 2
Z9 2
U1 2
U2 12
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
EI 1744-6848
J9 SOFT MATTER
JI Soft Matter
PY 2015
VL 11
IS 27
BP 5582
EP 5584
DI 10.1039/c5sm01071c
PG 3
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA CL7ZQ
UT WOS:000357192200021
ER
PT S
AU Cong, L
Jin, HY
Fitsos, P
McIntyre, T
Yih, Y
Zhao, F
Sutherland, JW
AF Cong, Liang
Jin, Hongyue
Fitsos, Pete
McIntyre, Timothy
Yih, Yuehwern
Zhao, Fu
Sutherland, John W.
BE Kara, S
TI Modeling the Value Recovery of Rare Earth Permanent Magnets at
End-of-Life
SO 22ND CIRP CONFERENCE ON LIFE CYCLE ENGINEERING
SE Procedia CIRP
LA English
DT Proceedings Paper
CT 22nd CIRP Conference on Life Cycle Engineering (LCE)
CY APR 07-09, 2015
CL Univ New S Wales, Sydney, AUSTRALIA
SP CIRP, Univ New S Wales, Sch Mech & Mfg Engn, Sustainable Mfg & Life Cycle Engn Res Grp, VOLKSWAGEN, Baxter
HO Univ New S Wales
DE Dismantling; Disassembly; Remanufacturing; Recycling
AB Permanent magnets containing rare earth elements (REEs) such as Dysprosium and Neodymium offer an advantage over non-REE containing magnets (e.g., ferrite and AlNiCo) in terms of power relative to size. However, REE availability has varied significantly in recent years leading to volatility in the cost of rare earth permanent magnets (REPMs). The supply of REEs can be increased by recycling consumer products and industrial machinery that contain REPMs at product end-of-life (EOL). This paper discusses the REE recovery process for EOL products. The optimal dismantling of products is examined with an emphasis placed on obtaining used REPMs. The challenge of collecting, managing, transporting, and processing used products is addressed through the development of a cost model for REPM recovery. This model is used to investigate several EOL strategies for recovering REPMs. Sensitivity analysis is conducted to identify the key factors that influence value recovery economics. A hard disk drive serves as a case study for model demonstration. (C) 2015 The Authors. Published by Elsevier B.V.
C1 [Cong, Liang; Zhao, Fu] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA.
[Jin, Hongyue; Yih, Yuehwern] Purdue Univ, Sch Ind Engn, W Lafayette, IN 47907 USA.
[Fitsos, Pete] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[McIntyre, Timothy] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Zhao, Fu; Sutherland, John W.] Purdue Univ, Div Environm & Ecol Engn, W Lafayette, IN 47907 USA.
RP Sutherland, JW (reprint author), Purdue Univ, Div Environm & Ecol Engn, W Lafayette, IN 47907 USA.
EM jwsuther@purdue.edu
NR 14
TC 2
Z9 2
U1 0
U2 14
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 2212-8271
J9 PROC CIRP
PY 2015
VL 29
BP 680
EP 685
DI 10.1016/j.procir.2015.02.015
PG 6
WC Engineering, Industrial
SC Engineering
GA BC8WH
UT WOS:000356146100115
ER
PT S
AU Filippetto, D
Doolittle, L
Huang, G
Norum, E
Portmann, GJ
Qian, H
Sannibale, F
AF Filippetto, D.
Doolittle, L.
Huang, G.
Norum, E.
Portmann, G. J.
Qian, H.
Sannibale, F.
BE Biedron, SG
TI Diagnostic for a High Repetition Rate Electron Photo-Gun and First
Measurements
SO ADVANCES IN X-RAY FREE-ELECTRON LASERS INSTRUMENTATION III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd SPIE Conference on Advances in X-Ray Free-Electron Lasers
Instrumentation
CY APR 13-16, 2015
CL Prague, CZECH REPUBLIC
SP SPIE
DE electron gun; high repetition rate; cathodes; electron diagnostic
AB The APEX electron source at LBNL combines the high-repetition-rate with the high beam brightness typical of photo-guns, delivering low emittance electron pulses at MHz frequency. Proving the high beam quality of the beam is an essential step for the success of the experiment, opening the doors of the high average power to brightness-hungry applications as X-Ray FELs, MHz ultrafast electron diffraction etc.. As first step, a complete characterization of the beam parameters is foreseen at the Gun beam energy of 750 keV. Diagnostics for low and high current measurements have been installed and tested, and measurements of cathode lifetime and thermal emittance in a RF environment with mA current performed. The recent installation of a double slit system, a deflecting cavity and a high precision spectrometer, allow the exploration of the full 6D phase space.
Here we discuss the present layout of the machine and future upgrades, showing the latest results at low and high repetition rate, together with the tools and techniques used..
C1 [Filippetto, D.; Doolittle, L.; Huang, G.; Norum, E.; Portmann, G. J.; Qian, H.; Sannibale, F.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Filippetto, D (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
NR 4
TC 1
Z9 1
U1 3
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-633-6
J9 PROC SPIE
PY 2015
VL 9512
AR 95120F
DI 10.1117/12.2182470
PG 9
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC9WE
UT WOS:000356925200012
ER
PT S
AU Sannibale, F
Filippetto, D
Qian, HJ
Papadopoulos, CF
Wells, R
Kramasz, T
Padmore, H
Feng, J
Nasiatka, J
Huang, RX
Zolotorev, M
Staples, JW
AF Sannibale, Fernando
Filippetto, Daniele
Qian, Houjun
Papadopoulos, Christos F.
Wells, Russell
Kramasz, Toby
Padmore, Howard
Feng, Jun
Nasiatka, James
Huang, Ruixuan
Zolotorev, Max
Staples, John W.
BE Biedron, SG
TI Tests of photocathodes for high repetition rate x-ray FELs at the APEX
facility at LBNL
SO ADVANCES IN X-RAY FREE-ELECTRON LASERS INSTRUMENTATION III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd SPIE Conference on Advances in X-Ray Free-Electron Lasers
Instrumentation
CY APR 13-16, 2015
CL Prague, CZECH REPUBLIC
SP SPIE
DE Photo-Injectors; photo-cathodes; high brightness; electron sources; high
repetition rate; FELs
ID FREE-ELECTRON LASER; RF GUN; OPERATION; INJECTORS
AB After the formidable results of X-ray 4th generation light sources based on free electron lasers around the world, a new revolutionary step is undergoing to extend the FEL performance from the present few hundred Hz to MHz-class repetition rates. In such facilities, temporally equi-spaced pulses will allow for a wide range of previously non-accessible experiments. The Advanced Photo-injector EXperiment (APEX) at the Lawrence Berkeley National Laboratory (LBNL), is devoted to test the capability of a novel scheme electron source, the VHF-Gun, to generate the required electron beam brightness at MHz repetition rates. In linac-based FELs, the ultimate performance in terms of brightness is defined at the injector, and in particular, cathodes play a major role in the game. Part of the APEX program consists in testing high quantum efficiency photocathodes capable to operate at the conditions required by such challenging machines. Results and status of these tests at LBNL are presented.
C1 [Sannibale, Fernando; Filippetto, Daniele; Qian, Houjun; Papadopoulos, Christos F.; Wells, Russell; Kramasz, Toby; Padmore, Howard; Feng, Jun; Nasiatka, James; Huang, Ruixuan; Zolotorev, Max; Staples, John W.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Huang, Ruixuan] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China.
RP Sannibale, F (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, One Cyclotron Rd, Berkeley, CA 94720 USA.
NR 18
TC 1
Z9 1
U1 3
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-633-6
J9 PROC SPIE
PY 2015
VL 9512
AR 95121N
DI 10.1117/12.2181912
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC9WE
UT WOS:000356925200034
ER
PT J
AU Sudarchikova, N
Mikolajewicz, U
Timmreck, C
O'Donnell, D
Schurgers, G
Sein, D
Zhang, K
AF Sudarchikova, N.
Mikolajewicz, U.
Timmreck, C.
O'Donnell, D.
Schurgers, G.
Sein, D.
Zhang, K.
TI Modelling of mineral dust for interglacial and glacial climate
conditions with a focus on Antarctica
SO CLIMATE OF THE PAST
LA English
DT Article
ID ICE CORE; TERRESTRIAL ECOSYSTEMS; COASTAL ANTARCTICA; ATMOSPHERIC DUST;
CIRRUS CLOUDS; DESERT DUST; DOME-C; AEROSOL; CYCLES; VARIABILITY
AB The mineral dust cycle responds to climate variations and plays an important role in the climate system by affecting the radiative balance of the atmosphere and modifying biogeochemistry. Polar ice cores provide unique information about deposition of aeolian dust particles transported over long distances. These cores are a palaeoclimate proxy archive of climate variability thousands of years ago. The current study is a first attempt to simulate past interglacial dust cycles with a global aerosol-climate model ECHAM5-HAM. The results are used to explain the dust deposition changes in Antarctica in terms of quantitative contribution of different processes, such as emission, atmospheric transport and precipitation, which will help to interpret palaeo-data from Antarctic ice cores. The investigated periods include four interglacial time slices: the pre-industrial control (CTRL), mid-Holocene (6000 yr BP; hereafter referred to as "6 kyr"), last glacial inception (115 000 yr BP; hereafter "115 kyr") and Eemian (126 000 yr BP; hereafter "126 kyr"). One glacial time interval, the Last Glacial Maximum (LGM) (21 000 yr BP; hereafter "21 kyr"), was simulated as well to be a reference test for the model. Results suggest an increase in mineral dust deposition globally, and in Antarctica, in the past interglacial periods relative to the pre-industrial CTRL simulation. Approximately two-thirds of the increase in the mid-Holocene and Eemian is attributed to enhanced Southern Hemisphere dust emissions. Slightly strengthened transport efficiency causes the remaining one-third of the increase in dust deposition. The moderate change in dust deposition in Antarctica in the last glacial inception period is caused by the slightly stronger poleward atmospheric transport efficiency compared to the pre-industrial. Maximum dust deposition in Antarctica was simulated for the glacial period. LGM dust deposition in Antarctica is substantially increased due to 2.6 times higher Southern Hemisphere dust emissions, 2 times stronger atmospheric transport towards Antarctica, and 30% weaker precipitation over the Southern Ocean. The model is able to reproduce the order of magnitude of dust deposition globally and in Antarctica for the pre-industrial and LGM climates.
C1 [Sudarchikova, N.; Mikolajewicz, U.; Timmreck, C.] Max Planck Inst Meteorol, Environm Modeling, D-20146 Hamburg, Germany.
[O'Donnell, D.] Finnish Meteorol Inst, Climate Change Res, FIN-00101 Helsinki, Finland.
[Schurgers, G.] Lund Univ, Dept Phys Geog & Ecosyst Sci, Lund, Sweden.
[Sein, D.] Alfred Wegener Inst Polar & Marine Res, Climate Dynam, Bremerhaven, Germany.
[Zhang, K.] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA.
RP Sudarchikova, N (reprint author), Max Planck Inst Meteorol, Environm Modeling, Bundesstr 55, D-20146 Hamburg, Germany.
EM natalia.sudarchikova@mpimet.mpg.com
RI Schurgers, Guy/K-6543-2012; Zhang, Kai/F-8415-2010;
OI Schurgers, Guy/0000-0002-2189-1995; Zhang, Kai/0000-0003-0457-6368;
Sein, Dmitry/0000-0002-1190-3622; Timmreck, Claudia/0000-0001-5355-0426
FU Deutsche Forschungsgemeinschaft
FX This work was funded by the Deutsche Forschungsgemeinschaft in the
project MISO within the framework of the priority programme INTERDYNAMIK
(SPP1266). The model integrations were performed at the German Climate
Computing Center (DKRZ). We appreciate the comments and suggestions by
Silvia Kloster and the two anonymous reviewers, which helped us to
improve the paper.
NR 56
TC 5
Z9 5
U1 2
U2 30
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1814-9324
EI 1814-9332
J9 CLIM PAST
JI Clim. Past.
PY 2015
VL 11
IS 5
BP 765
EP 779
DI 10.5194/cp-11-765-2015
PG 15
WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences
SC Geology; Meteorology & Atmospheric Sciences
GA CL7AE
UT WOS:000357121100005
ER
PT J
AU Ranalli, JA
Strakey, PA
AF Ranalli, Joseph A.
Strakey, Peter A.
TI CHARACTERIZATION OF A NITROGEN DILUTED HYDROGEN DIFFUSION FLAME FOR
MODEL VALIDATION
SO COMBUSTION SCIENCE AND TECHNOLOGY
LA English
DT Article
DE Hydrogen dilute diffusion; Raman spectroscopy
ID RAMAN-SCATTERING; JET FLAMES; TURBULENT; AIR; FLUORESCENCE; COMBUSTION;
REDUCTION; RAYLEIGH
AB Dilute hydrogen diffusion flames have been considered as a gas turbine combustion strategy that provides relatively low levels of NOx emissions for application in integrated gasification combined cycle power generation. These flames also represent a challenging environment for computational modeling efforts due to the complexity of molecular transport effects, turbulence-chemistry interaction, and near extinction flame conditions. In order to provide data for validation of computational modeling efforts, measurements of major species concentration and flame temperature were made in such a flame using spontaneous Raman scattering. Experimental results demonstrate the importance of differential species diffusion, which occurs due to the disparity between diffusion characteristics of hydrogen and nitrogen. Additionally, the flame temperatures observed were quite low relative to the equilibrium flame temperature, due to flame strain. This confirms the fact that suppression of the thermal mechanism of NOx formation plays a significant role in reducing NOx emissions from this type of flame.
C1 [Ranalli, Joseph A.; Strakey, Peter A.] Natl Energy Technol Lab, Morgantown, WV 26507 USA.
RP Ranalli, JA (reprint author), Natl Energy Technol Lab, Morgantown, WV 26507 USA.
EM jranalli@vt.edu
NR 20
TC 0
Z9 0
U1 2
U2 6
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 0010-2202
EI 1563-521X
J9 COMBUST SCI TECHNOL
JI Combust. Sci. Technol.
PY 2015
VL 187
IS 9
BP 1351
EP 1375
DI 10.1080/00102202.2015.1042102
PG 25
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
Engineering, Chemical
SC Thermodynamics; Energy & Fuels; Engineering
GA CL4ZI
UT WOS:000356967100003
ER
PT J
AU Xiong, QG
Ma, JS
Zhou, H
Lorenzini, G
AF Xiong, Qingang
Ma, Jingsen
Zhou, Hao
Lorenzini, Giulio
TI Multiscale Discrete Simulation of Complex Systems
SO DISCRETE DYNAMICS IN NATURE AND SOCIETY
LA English
DT Editorial Material
C1 [Xiong, Qingang] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
[Ma, Jingsen] Dynaflow Inc, Jessup, MD 20794 USA.
[Zhou, Hao] Zhejiang Univ, Inst Thermal Power Engn, Hangzhou 310027, Zhejiang, Peoples R China.
[Lorenzini, Giulio] Univ Parma, Dept Ind Engn, I-43124 Parma, Italy.
RP Xiong, QG (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
EM xiongq@ornl.gov; jingsen@dynaflow-inc.com
NR 0
TC 0
Z9 0
U1 3
U2 8
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1026-0226
EI 1607-887X
J9 DISCRETE DYN NAT SOC
JI Discrete Dyn. Nat. Soc.
PY 2015
AR 383084
DI 10.1155/2015/383084
PG 2
WC Mathematics, Interdisciplinary Applications; Multidisciplinary Sciences
SC Mathematics; Science & Technology - Other Topics
GA CL8HR
UT WOS:000357215700001
ER
PT J
AU Yuhara, D
Barnes, BC
Suh, D
Knott, BC
Beckham, GT
Yasuoka, K
Wu, DT
Sum, AK
AF Yuhara, Daisuke
Barnes, Brian C.
Suh, Donguk
Knott, Brandon C.
Beckham, Gregg T.
Yasuoka, Kenji
Wu, David T.
Sum, Amadeu K.
TI Nucleation rate analysis of methane hydrate from molecular dynamics
simulations
SO FARADAY DISCUSSIONS
LA English
DT Article
ID NANOPARTICLE GROWTH ANALYSIS; PARTICLE MESH EWALD; HOMOGENEOUS
NUCLEATION; CLATHRATE-HYDRATE; COMPUTER-SIMULATION; VAPOR NUCLEATION;
JONES FLUID; PHASE; WATER; SYSTEM
AB Clathrate hydrates are solid crystalline structures most commonly formed from solutions that have nucleated to form a mixed solid composed of water and gas. Understanding the mechanism of clathrate hydrate nucleation is essential to grasp the fundamental chemistry of these complex structures and their applications. Molecular dynamics (MD) simulation is an ideal method to study nucleation at the molecular level because the size of the critical nucleus and formation rate occur on the nano scale. Various analysis methods for nucleation have been developed through MD to analyze nucleation. In particular, the mean first-passage time (MFPT) and survival probability (SP) methods have proven to be effective in procuring the nucleation rate and critical nucleus size for monatomic systems. This study assesses the MFPT and SP methods, previously used for monatomic systems, when applied to analyzing clathrate hydrate nucleation. Because clathrate hydrate nucleation is relatively difficult to observe in MD simulations (due to its high free energy barrier), these methods have yet to be applied to clathrate hydrate systems. In this study, we have analyzed the nucleation rate and critical nucleus size of methane hydrate using MFPT and SP methods from data generated by MD simulations at 255 K and 50 MPa. MFPT was modified for clathrate hydrate from the original version by adding the maximum likelihood estimate and growth effect term. The nucleation rates calculated by MFPT and SP methods are within 5%, and the critical nucleus size estimated by the MFPT method was 50% higher, than values obtained through other more rigorous but computationally expensive estimates. These methods can also be extended to the analysis of other clathrate hydrates.
C1 [Yuhara, Daisuke; Suh, Donguk; Yasuoka, Kenji] Keio Univ, Dept Mech Engn, Yokohama, Kanagawa 223, Japan.
[Barnes, Brian C.; Wu, David T.; Sum, Amadeu K.] Colorado Sch Mines, Ctr Hydrate Res, Chem & Biol Engn Dept, Golden, CO 80401 USA.
[Knott, Brandon C.; Beckham, Gregg T.] Natl Renewable Energy Lab, Golden, CO USA.
[Wu, David T.] Colorado Sch Mines, Dept Chem, Golden, CO 80401 USA.
RP Sum, AK (reprint author), Colorado Sch Mines, Ctr Hydrate Res, Chem & Biol Engn Dept, Golden, CO 80401 USA.
EM asum@mines.edu
RI Sum, Amadeu/B-1103-2009
OI Sum, Amadeu/0000-0003-1903-4537
FU MEXT; U.S. National Science Foundation [CHE-1125235]; NREL Directors
Fellowship Program
FX This work was supported (in part) by MEXT Grant-in-Aid for the "Program
for Leading Graduate Schools". This project was partially funded by the
U.S. National Science Foundation (CHE-1125235). B.C.K. and G.T.B. thank
the NREL Directors Fellowship Program for Funding. High-performance
computing resources were provided by the National Renewable Energy
Laboratory, Golden Energy Computing Organization (Colorado School of
Mines), and Sandia National Laboratories.
NR 67
TC 10
Z9 10
U1 7
U2 30
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-6640
EI 1364-5498
J9 FARADAY DISCUSS
JI Faraday Discuss.
PY 2015
VL 179
BP 463
EP 474
DI 10.1039/c4fd00219a
PG 12
WC Chemistry, Physical
SC Chemistry
GA CL4XT
UT WOS:000356961400024
PM 25876773
ER
PT S
AU Chong, XY
Kim, KJ
Ohodnicki, PR
Chang, CH
Wang, AX
AF Chong, Xinyuan
Kim, Ki-Joong
Ohodnicki, Paul R.
Chang, Chih-Hung
Wang, Alan X.
BE Pickrell, G
Udd, E
Du, HH
TI Near-Infrared Absorption Fiber-Optic Sensors for Ultra-Sensitive CO2
Detection
SO FIBER OPTIC SENSORS AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Fiber Optic Sensors and Applications XII
CY APR 22-23, 2015
CL Baltimore, MD
SP SPIE
DE Gas Sensor; Near-Infrared Absorption; Fiber-Optic Sensor; Metal-Organic
Framework
ID METAL-ORGANIC FRAMEWORKS; PLASMON RESONANCE SENSOR; CARBON-DIOXIDE;
HYDROGEN STORAGE; DRUG-DELIVERY; OPTIC SENSORS; GAS SENSORS; WAVE-GUIDE;
FILM; TEMPERATURE
AB We present a fiber-optic sensor working at near-infrared (NIR) wavelength (similar to 1.57 mu m) for CO2 detection. In order to increase the NIR absorption, we utilize functional sensor materials metal-organic framework (MOF) on the surface of the core of a multimode-fiber with the cladding layer etched away. The selected functional materials demonstrated excellent adsorption capacity of CO2 and significantly increased the detection sensitivity down to 500 ppm with only 8-centimeter absorption length.
C1 [Chong, Xinyuan; Wang, Alan X.] Oregon State Univ, Sch Elect Engn & Comp Sci, Corvallis, OR 97331 USA.
[Kim, Ki-Joong; Chang, Chih-Hung] Oregon State Univ, Sch Chem Biol & Environm Engn, Corvallis, OR 97331 USA.
[Ohodnicki, Paul R.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
RP Chang, CH (reprint author), Oregon State Univ, Sch Chem Biol & Environm Engn, Corvallis, OR 97331 USA.
EM Chih-Hung.Chang@oregonstate.edu; wang@eecs.oregonstate.edu
NR 42
TC 0
Z9 0
U1 4
U2 13
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-596-4
J9 PROC SPIE
PY 2015
VL 9480
AR 94800W
DI 10.1117/12.2178072
PG 7
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AJ
UT WOS:000357019100023
ER
PT S
AU Rasberry, RD
Rohr, GD
Miller, WK
Udd, E
Blach, NT
Davis, RA
Olson, WR
Calkins, D
Roach, AR
Walsh, DS
McElhanon, JR
AF Rasberry, Roger D.
Rohr, Garth D.
Miller, William K.
Udd, Eric
Blach, Noah T.
Davis, Ryan A.
Olson, Walter R.
Calkins, David
Roach, Allen R.
Walsh, David S.
McElhanon, James R.
BE Pickrell, G
Udd, E
Du, HH
TI Interrogating adhesion using fiber Bragg grating sensing technology
SO FIBER OPTIC SENSORS AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Fiber Optic Sensors and Applications XII
CY APR 22-23, 2015
CL Baltimore, MD
SP SPIE
DE Fiber Bragg grating; chirped; adhesion; epoxy; encapsulation; interface
ID COMPOSITE STRUCTURES; STRAIN SENSOR; JOINTS; THERMOSET; EPOXY; MODEL
AB The assurance of the integrity of adhesive bonding at substrate interfaces is paramount to the longevity and sustainability of encapsulated components. Unfortunately, it is often difficult to non-destructively evaluate these materials to determine the adequacy of bonding after manufacturing and then later in service. A particularly difficult problem in this regard is the reliable detection/monitoring of regions of weak bonding that may result from poor adhesion or poor cohesive strength, or degradation in service. One promising and perhaps less explored avenue we have recently begun to investigate for this purpose centers on the use of (chirped) fiber Bragg grating sensing technology. In this scenario, a grating is patterned into a fiber optic such that a (broadband) spectral reflectance is observed. The sensor is highly sensitive to local and uniform changes across the length of the grating. Initial efforts to evaluate this approach for measuring adhesive bonding defects at substrate interfaces are discussed.
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.
C1 [Rasberry, Roger D.; Rohr, Garth D.; Miller, William K.; Davis, Ryan A.; Olson, Walter R.; Calkins, David; Roach, Allen R.; Walsh, David S.; McElhanon, James R.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Udd, Eric] Columbia Gorge Res LLC, Fairview, OR 97024 USA.
[Blach, Noah T.] US Air Force Acad, Colorado Springs, CO 80840 USA.
RP Rasberry, RD (reprint author), Sandia Natl Labs, POB 5800,MS 0888, Albuquerque, NM 87185 USA.
NR 20
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-596-4
J9 PROC SPIE
PY 2015
VL 9480
AR 948007
DI 10.1117/12.2177701
PG 11
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AJ
UT WOS:000357019100006
ER
PT S
AU Rodriguez, G
Jaime, M
Mielke, CH
Balakirev, FF
Azad, A
Sandberg, RL
Marshall, B
La Lone, BM
Henson, BF
Smilowitz, L
Marr-Lyon, M
Sandoval, T
AF Rodriguez, George
Jaime, Marcelo
Mielke, Chuck H.
Balakirev, Fedor F.
Azad, Abul
Sandberg, Richard L.
Marshall, Bruce
La Lone, Brandon M.
Henson, Bryan F.
Smilowitz, Laura
Marr-Lyon, Mark
Sandoval, Tom
BE Pickrell, G
Udd, E
Du, HH
TI Insight into fiber Bragg sensor response at 100 MHz interrogation rates
under various dynamic loading conditions
SO FIBER OPTIC SENSORS AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Fiber Optic Sensors and Applications XII
CY APR 22-23, 2015
CL Baltimore, MD
SP SPIE
DE Fiber Bragg gratings; fiber Bragg instrumentation and techniques; fiber
optic sensors; strain and pressure measurement; shockwaves; ultrafast
technology
ID LASER
AB A 100 MHz fiber Bragg grating (FBG) interrogation system is described and applied to strain, pressure, and shock position sensing. The approach relies on coherent pulse illumination of the FBG sensor with a broadband short pulse from a femtosecond modelocked erbium fiber laser. After interrogation of the FBG sensor, a long multi-kilometer run of single mode fiber was used for chromatic dispersion to temporally stretch the spectral components of the reflected pulse from the FBG sensor. Dynamic strain or pressure induced spectral shifts in the FBG sensor were detected as a pulsed time domain waveform shift after encoding by the chromatic dispersive line. Signals were recorded using a single 35 GHz photodetector and a 25 GHz bandwidth digitizing oscilloscope. Application of this approach to high-speed strain sensing of magnetic materials in pulsed magnetic fields to similar to 150 T is demonstrated. The FBG wavelength shifts were used to study magnetic field driven magnetostriction effects in LaCoO3. A sub-microsecond temporal shift in the FBG sensor wavelength attached to the sample under first order phase change appears as a fractional length change (strain: Delta L/L<10(-4)) in the material. A second application to FBG sensing of pressure dynamics to nearly 2 GPa in the thermal ignition of the high explosive PBX-9501 is also demonstrated. Then, as final demonstration, we use a chirped FBG (CFBG) to resolve shock propagation dynamics in 1-D from an explosive detonation that produces fragmentation in an inert confinement vessel. These applications demonstrate the use of this FBG interrogation system in dynamical extreme conditions that would otherwise not be possible using traditional FBG interrogation approaches that are deemed too slow to resolve such events.
C1 [Rodriguez, George; Jaime, Marcelo; Mielke, Chuck H.; Balakirev, Fedor F.; Azad, Abul; Sandberg, Richard L.; Henson, Bryan F.; Smilowitz, Laura; Marr-Lyon, Mark; Sandoval, Tom] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Marshall, Bruce; La Lone, Brandon M.] Natl Secur Technol LLC, Special Technol Lab, Santa Barbara, CA 93001 USA.
RP Rodriguez, G (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
RI Rodriguez, George/G-7571-2012;
OI Rodriguez, George/0000-0002-6044-9462; Azad, Abul/0000-0002-7784-7432;
Jaime, Marcelo/0000-0001-5360-5220; Sandberg,
Richard/0000-0001-9719-8188
NR 30
TC 2
Z9 2
U1 2
U2 10
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-596-4
J9 PROC SPIE
PY 2015
VL 9480
AR 948004
DI 10.1117/12.2086707
PG 15
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AJ
UT WOS:000357019100003
ER
PT S
AU Rohr, GD
Rasberry, RD
Kaczmarowksi, AK
Stavig, ME
Gibson, CS
Udd, E
Roach, AR
Nation, B
AF Rohr, Garth D.
Rasberry, Roger D.
Kaczmarowksi, Amy K.
Stavig, Mark E.
Gibson, Cory S.
Udd, Eric
Roach, Allen R.
Nation, Brendan
BE Pickrell, G
Udd, E
Du, HH
TI Residual internal stress optimization for EPON 828/DEA thermoset resin
using fiber Bragg grating sensors
SO FIBER OPTIC SENSORS AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Fiber Optic Sensors and Applications XII
CY APR 22-23, 2015
CL Baltimore, MD
SP SPIE
DE Fiber Bragg grating; chirped; stress; epoxy; encapsulation; cure
ID MODEL
AB Internal residual stresses and overall mechanical properties of thermoset resins are largely dictated by the curing process. It is well understood that fiber Bragg grating (FBG) sensors can be used to evaluate temperature and cure induced strain while embedded during curing. Herein, is an extension of this work whereby we use FBGs as a probe for minimizing the internal residual stress of an unfilled and filled Epon 828/DEA resin. Variables affecting stress including cure cycle, mold (release), and adhesion promoting additives will be discussed and stress measurements from a strain gauge pop-off test will be used as comparison.
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.
C1 [Rohr, Garth D.; Rasberry, Roger D.; Kaczmarowksi, Amy K.; Stavig, Mark E.; Roach, Allen R.; Nation, Brendan] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Gibson, Cory S.; Udd, Eric] Columbia Gorge Res LLC, Fairview, OR 97024 USA.
RP Rohr, GD (reprint author), Sandia Natl Labs, POB 5800,MS 0888, Albuquerque, NM 87185 USA.
NR 12
TC 0
Z9 0
U1 2
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-596-4
J9 PROC SPIE
PY 2015
VL 9480
AR 948008
DI 10.1117/12.2179198
PG 7
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AJ
UT WOS:000357019100007
ER
PT S
AU Wang, CJ
Su, X
Brown, TD
Ohodnicki, PR
AF Wang, Congjun
Su, Xin
Brown, Thomas. D.
Ohodnicki, Paul R., Jr.
BE Pickrell, G
Udd, E
Du, HH
TI Novel sensing materials for harsh environment subsurface pH sensing
applications
SO FIBER OPTIC SENSORS AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Fiber Optic Sensors and Applications XII
CY APR 22-23, 2015
CL Baltimore, MD
SP SPIE
DE pH; optical fiber; high temperature; high pressure; silica; metal
nanoparticle
ID REFRACTIVE-INDEX; COLLOIDAL GOLD; PRESSURE; NANOPARTICLES; TEMPERATURES;
WATER; DENSITY; SENSORS
AB Robust pH sensors that can operate under harsh environmental conditions are valuable for a variety of applications, such as oil and gas production, geological CO2 sequestration, etc. However, despite the significant advance in pH measurement technology, reliable pH sensing at elevated pressures (up to 30,000 psi) and high temperatures (up to 350 degrees C) remains challenging. We describe an optical pH sensor based on optical fiber technology. A sensing layer that is comprised of metal nanoparticles incorporated in a silica matrix coated on an optical fiber exhibits strong and reversible optical response to pH variation at 80 degrees C and in solutions with different salt concentrations. The same robust response is also observed at elevated pressures up to 2,000 psi. The optical fiber pH sensor is made of materials with high stability at temperatures at least up to similar to 600 degrees C. Therefore, this approach provides a new potential means to enable optical pH sensing for extreme environment applications.
C1 [Wang, Congjun; Su, Xin; Brown, Thomas. D.; Ohodnicki, Paul R., Jr.] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
[Wang, Congjun] AECOM, Pittsburgh, PA 15219 USA.
[Ohodnicki, Paul R., Jr.] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA.
RP Wang, CJ (reprint author), Natl Energy Technol Lab, 626 Cochrans Mill Rd, Pittsburgh, PA 15236 USA.
NR 22
TC 0
Z9 0
U1 2
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-596-4
J9 PROC SPIE
PY 2015
VL 9480
AR 94800C
DI 10.1117/12.2185051
PG 6
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BD0AJ
UT WOS:000357019100011
ER
PT S
AU Tang, J
Georgescu, W
Deschamps, T
Yannone, SM
Costes, SV
AF Tang, Jonathan
Georgescu, Walter
Deschamps, Thomas
Yannone, Steven M.
Costes, Sylvain V.
BE Maxwell, C
Roskelley, C
TI Mathematical Modeling for DNA Repair, Carcinogenesis and Cancer
Detection
SO GENOMIC INSTABILITY AND CANCER METASTASIS: MECHANISMS, EMERGING THEMES,
AND NOVEL THERAPEUTIC STRATEGIES
SE Cancer Metastasis Biology and Treatment
LA English
DT Article; Book Chapter
DE Radiation Induced Foci; DNA double strand breaks; DNA repair kinetics;
baseline DNA damage; cancer model; cancer risk; multi-stage clonal
expansion model; cancer detection
ID DOUBLE-STRAND BREAKS; HISTONE H2AX PHOSPHORYLATION; INDUCED GENOMIC
INSTABILITY; CLASS SWITCH RECOMBINATION; NEUTRAL COMET ASSAY;
HEAT-LABILE SITES; LOW-LET RADIATION; IONIZING-RADIATION; GAMMA-H2AX
FOCI; IN-VITRO
AB The constant damage of DNA in human cells is considered the main cause of aging and cancer. In this review, we discuss the most lethal form of DNA damage, the DNA double strand break (DSB), and how it relates to cancer. DSB sensor proteins in the nucleus detect DNA breaks within minutes following damage. These proteins are now routinely labeled by immunocytochemistry, and access to high throughput fluorescence microscopy and robotics open the door to rapid measurement of DSB levels in individuals. This method, often referred as the DSB foci assay, leads to images showing small bright spots at the site of each damage in the nucleus. We first discuss how energy consumption in the cell leads to detectable baseline levels of foci per cell measured in peripheral blood lymphocytes. Mathematical kinetics are then described to infer both genetic defects in DNA repair and environmental factors influencing these levels. We emphasize ionizing radiation, which is the principal environmental factor that increases DSB levels. Mathematical models associating a mutation probability for each DSB have been used to explain the dose dependence of cancer incidence observed after exposure to high doses of radiation. The main assumption in these models is that high mutation frequency can eventually lead to tumor suppressor gene deletion or oncogene amplification. We conclude by suggesting that the growing stream of genetic and phenotypic measurements related to DNA repair and DNA damage will lead to more accurate predictive tools for cancer risk and individualized cancer prevention.
C1 [Georgescu, Walter; Yannone, Steven M.; Costes, Sylvain V.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Tang, Jonathan; Deschamps, Thomas; Yannone, Steven M.; Costes, Sylvain V.] Exogen Biotechnol Inc, Berkeley, CA USA.
RP Costes, SV (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, MS 977, Berkeley, CA 94720 USA.
EM svcostes@lbl.gov
NR 121
TC 1
Z9 1
U1 3
U2 3
PU SPRINGER
PI DORDRECHT
PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS
SN 1568-2102
BN 978-3-319-12136-9; 978-3-319-12135-2
J9 CANCER METAST BIOL T
JI Cancer Metastasis-Biol Treat
PY 2015
VL 20
BP 75
EP 93
D2 10.1007/978-3-319-12136-9
PG 19
WC Oncology
SC Oncology
GA BD0JT
UT WOS:000357274100005
ER
PT J
AU Lee, J
Kim, Y
Kim, J
Shipman, GM
AF Lee, Junghee
Kim, Youngjae
Kim, Jongman
Shipman, Galen M.
TI Synchronous I/O Scheduling of Independent Write Caches for an Array of
SSDs
SO IEEE COMPUTER ARCHITECTURE LETTERS
LA English
DT Article
DE Redundant array of independent disks (RAID); solid-state drive (SSD);
flash memory; I/O scheduling; write cache
AB Solid-state drives (SSD) offer a significant performance improvement over the hard disk drives (HDD), however, it can exhibit a significant variance in latency and throughput due to internal garbage collection (GC) process on the SSD. When the SSDs are configured in a RAID, the performance variance of individual SSDs could significantly degrade the overall performance of the RAID of SSDs. The internal cache on the RAID controller can help mitigate the performance variability issues of SSDs in the array; however, the state-of-the-art cache algorithm of the RAID controller does not consider the characteristics of SSDs. In this paper, we examine the most recent write cache algorithm for the array of disks, and propose a synchronous independent write cache (SIW) algorithm. We also present a pre-parity-computation technique for the RAID of SSDs with parity computations, which calculates parities of blocks in advance before they are stored in the write cache. With this new technique, we propose a complete paradigm shift in the design of write cache. In our evaluation study, large write requests dominant workloads show up to about 50 and 20 percent improvements in average response times on RAID-0 and RAID-5 respectively as compared to the state-of-the-art write cache algorithm.
C1 [Lee, Junghee] Univ Texas San Antonio, San Antonio, TX 78229 USA.
[Kim, Youngjae] Ajou Univ, Suwon 441749, South Korea.
[Kim, Jongman] Georgia Inst Technol, Atlanta, GA 30332 USA.
[Shipman, Galen M.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Lee, J (reprint author), Univ Texas San Antonio, San Antonio, TX 78229 USA.
EM junghee.lee@utsa.edu; youkim@gmail.com; jkim@ece.gatech.edu;
gshipman@ornl.gov
NR 8
TC 0
Z9 0
U1 2
U2 2
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1556-6056
EI 1556-6064
J9 IEEE COMPUT ARCHIT L
JI IEEE Comput. Archit. Lett.
PD JAN-JUN
PY 2015
VL 14
IS 1
BP 79
EP 82
DI 10.1109/LCA.2014.2298394
PG 4
WC Computer Science, Hardware & Architecture
SC Computer Science
GA CL1QK
UT WOS:000356718700020
ER
PT J
AU Hexemer, A
Muller-Buschbaum, P
AF Hexemer, Alexander
Mueller-Buschbaum, Peter
TI Advanced grazing-incidence techniques for modern soft-matter materials
analysis
SO IUCRJ
LA English
DT Article
DE grazing-incidence techniques; GISAXS; GIWAXS; resonant soft X-ray
scattering; GISANS; morphology; soft matter
ID X-RAY-SCATTERING; COPOLYMER THIN-FILMS; SMALL-ANGLE NEUTRON; POLYMER
SOLAR-CELLS; ATOMIC-FORCE MICROSCOPY; HIGH-FLUX BEAMLINE; IN-SITU
GISAXS; BLOCK-COPOLYMER; BLEND FILMS; SPUTTER-DEPOSITION
AB The complex nano-morphology of modern soft-matter materials is successfully probed with advanced grazing-incidence techniques. Based on grazing-incidence small-and wide-angle X-ray and neutron scattering (GISAXS, GIWAXS, GISANS and GIWANS), new possibilities arise which are discussed with selected examples. Due to instrumental progress, highly interesting possibilities for local structure analysis in this material class arise from the use of micro-and nanometer-sized X-ray beams in micro-or nanofocused GISAXS and GIWAXS experiments. The feasibility of very short data acquisition times down to milliseconds creates exciting possibilities for in situ and in operando GISAXS and GIWAXS studies. Tuning the energy of GISAXS and GIWAXS in the soft X-ray regime and in time-of flight GISANS allows the tailoring of contrast conditions and thereby the probing of more complex morphologies. In addition, recent progress in software packages, useful for data analysis for advanced grazing-incidence techniques, is discussed.
C1 [Hexemer, Alexander] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Mueller-Buschbaum, Peter] Tech Univ Munich, Lehrstuhl Funkt Mat, Dept Phys, D-85748 Garching, Germany.
[Mueller-Buschbaum, Peter] Nanosyst Initiat Munich, D-80799 Munich, Germany.
RP Muller-Buschbaum, P (reprint author), Tech Univ Munich, Lehrstuhl Funkt Mat, Dept Phys, James Franck Str 1, D-85748 Garching, Germany.
EM peter.mueller-buschbaum@ph.tum.de
RI Muller-Buschbaum, Peter/C-3397-2017
OI Muller-Buschbaum, Peter/0000-0002-9566-6088
FU TUM.solar in the framework of the Bavarian Collaborative Research
Project 'Solar Technologies go Hybrid' (SolTech); GreenTech Initiative
(Interface Science for Photovoltaics - ISPV) of the EuroTech
Universities; DFG priority program 'Elementarprozesse der Organischen
Photovoltaik' [SPP 1355]; Early Career DOE program
FX Financial support from TUM.solar in the framework of the Bavarian
Collaborative Research Project 'Solar Technologies go Hybrid' (SolTech),
from the GreenTech Initiative (Interface Science for Photovoltaics -
ISPV) of the EuroTech Universities and from DFG priority program SPP
1355 'Elementarprozesse der Organischen Photovoltaik' is acknowledged by
PMB. Financial support from the Early Career DOE program is acknowledged
by AH. V. Korstgens helped with the references and with proof reading
the text, together with N. Saxena.
NR 168
TC 41
Z9 41
U1 13
U2 69
PU INT UNION CRYSTALLOGRAPHY
PI CHESTER
PA 2 ABBEY SQ, CHESTER, CH1 2HU, ENGLAND
SN 2052-2525
J9 IUCRJ
JI IUCrJ
PD JAN
PY 2015
VL 2
BP 106
EP 125
DI 10.1107/S2052252514024178
PN 1
PG 20
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA CL3QR
UT WOS:000356865900014
PM 25610632
ER
PT J
AU McIntosh, KG
Cordes, NL
Patterson, BM
Havrilla, GJ
AF McIntosh, K. G.
Cordes, N. L.
Patterson, B. M.
Havrilla, G. J.
TI Laboratory-based characterization of plutonium in soil particles using
micro-XRF and 3D confocal XRF
SO JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
LA English
DT Article
ID X-RAY TECHNIQUES; NUCLEAR
AB The measurement of plutonium (Pu) in a soil matrix is of interest in safeguards, nuclear forensics, and environmental remediation activities. The elemental composition of two Pu contaminated soil particles was characterized nondestructively using micro X-ray fluorescence spectrometry (micro-XRF) techniques including high resolution X-ray (hiRX) and 3D confocal XRF. The three dimensional elemental imaging capability of confocal XRF permitted the identification two distinct Pu particles within the samples: one external to the Fe-rich soil matrix and another co-located with Cu within the soil matrix. The size and morphology of the particles was assessed with X-ray transmission microscopy (XTM) and micro X-ray computed tomography (micro-CT) providing complementary information. Limits of detection for a 30 mu m Pu particle are <15 ng for each of the XRF techniques. This study highlights the capability for lab-based, nondestructive, spatially resolved characterization of heterogeneous matrices on the micrometer scale with nanogram sensitivity.
C1 [McIntosh, K. G.; Havrilla, G. J.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
[Cordes, N. L.; Patterson, B. M.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
RP McIntosh, KG (reprint author), Los Alamos Natl Lab, Div Chem, POB 1663, Los Alamos, NM 87545 USA.
EM kmcintosh@lanl.gov
OI Havrilla, George/0000-0003-2052-7152; Cordes,
Nikolaus/0000-0003-3367-5592; Patterson, Brian/0000-0001-9244-7376;
McIntosh, Kathryn/0000-0002-8623-403X
FU U.S. Department of Energy through the LANL/LDRD Program under Seaborg
Institute Postdoctoral Fellowship program; Next Generation Safeguards
Initiative (NGSI), Office of Nonproliferation and International Security
(NIS), National Nuclear Security Administration (NNSA); National Nuclear
Security Administration [DE-AC52-06NA25396. LA-UR-15-20897]
FX The authors gratefully acknowledge the contributions of Hakim Boukhalfa
and Velma Lopez (LANL) in preparation of the soil samples. The authors
also acknowledge the support of the U.S. Department of Energy through
the LANL/LDRD Program under the auspices of the Seaborg Institute
Postdoctoral Fellowship program, and Next Generation Safeguards
Initiative (NGSI), Office of Nonproliferation and International Security
(NIS), National Nuclear Security Administration (NNSA). Los Alamos
National Laboratory is operated by the Los Alamos National Security, LLC
for the National Nuclear Security Administration of the U.S. Department
of Energy under contract DE-AC52-06NA25396. LA-UR-15-20897.
NR 22
TC 3
Z9 3
U1 6
U2 25
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0267-9477
EI 1364-5544
J9 J ANAL ATOM SPECTROM
JI J. Anal. At. Spectrom.
PY 2015
VL 30
IS 7
BP 1511
EP 1517
DI 10.1039/c5ja00068h
PG 7
WC Chemistry, Analytical; Spectroscopy
SC Chemistry; Spectroscopy
GA CL5AR
UT WOS:000356971900005
ER
PT J
AU Macpherson, GL
Phan, TT
Stewart, BW
AF Macpherson, G. L.
Phan, Thai T.
Stewart, Brian W.
TI Direct determination (without chromatographic separation) of lithium
isotopes in saline fluids using MC-ICP-MS: establishing limits on water
chemistry
SO JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
LA English
DT Article
ID PLASMA-MASS SPECTROMETRY; PRECISE DETERMINATION; GULF-COAST; ACCURATE;
FRACTIONATION; SEAWATER; RATIOS
AB Produced waters from petroleum and geothermal reservoirs contain large amounts of cations including lithium, and while lithium isotopes are time-intensive to measure in the traditional way, they have the potential to reveal information about fluid and solute origins and diagenesis. We tested the effect of added cations that dominate in produced waters (Na, Ca, Mg) on accuracy and precision of lithium isotope measurements by MC-ICP-MS in Li-isotope standard solutions without chromatographic separation. Repeated measurement of Li-isotope standards with no added matrix demonstrate high 2 SD reproducibility: LSVEC (RM8545) had delta Li-7 of 0.04 +/- 0.74 parts per thousand (n = 19); IRMM16 had delta Li-7 of 0.07 +/- 1.2 parts per thousand (n = 11); Li7N had delta Li-7 of 30.07 +/- 0.12 parts per thousand (n = 11); Li6N had delta Li-7 of -8.04 +/- 0.58 parts per thousand (n = 8). Replicates of standards with matrix and of diluted produced waters had 2 SD reproducibility smaller than +/- 1.8 parts per thousand and +/- 2.0 parts per thousand, respectively. Results showed that Na/Li (weight ratio) up to about 500 (analysed aliquot <20 mg kg(-1) Na) and Ca/Li or Mg/Li up to about 250 (analysed aliquot <10 mg kg(-1) Ca or Mg) do not diminish delta Li-7 accuracy or precision, so long as Li concentration in the measured solution is greater than 20 mg kg(-1). Because produced waters are chemically more complex than the added-matrix isotope standards we tested initially, we also compared delta Li-7 in produced waters from which the Li was chromatographically separated, as is the convention, with diluted produced waters. Results show marked Li isotope fractionation occurred in those samples in which Na/Li ranged from 500 to almost 10 000. Geothermal waters and Na-Ca-Cl-type produced waters, therefore, are fluids that are most likely to have cation/Li ratios that will make them amenable to direct determination of delta Li-7 with only sample dilution. We also found that two aliquots of the Li-isotope standard, LSVEC (RM8545), one obtained in 1985 and one in 2012, have delta Li-7 that differs by about 2 parts per thousand.
C1 [Macpherson, G. L.] Univ Kansas, Dept Geol, Lawrence, KS 66045 USA.
[Phan, Thai T.; Stewart, Brian W.] Univ Pittsburgh, Dept Geol & Planetary Sci, Pittsburgh, PA 15260 USA.
[Phan, Thai T.; Stewart, Brian W.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
RP Macpherson, GL (reprint author), Univ Kansas, Dept Geol, 1475 Jayhawk Blvd,Rm 120 Lindley Hall, Lawrence, KS 66045 USA.
EM glmac@ku.edu; thaiphan@pitt.edu; bstewart@pitt.edu
OI Phan, Thai/0000-0003-2491-749X
FU National Energy Technology Laboratory under the RES at the University of
Pittsburgh [DE-FE0004000]; University of Kansas Department of Geology;
Geology Associates Fund of the KU Endowment Association
FX This work was supported by the National Energy Technology Laboratory's
ongoing research under the RES contract DE-FE0004000 at the University
of Pittsburgh. We are grateful for generous support from the University
of Kansas Department of Geology and the Geology Associates Fund of the
KU Endowment Association, and for produced-water sample collection by
the USGS, DOE-NETL personnel, Bucknell University, and University of
Pittsburgh personnel. Dr Karl Schroeder provided logistical support for
the project. Dr Andy Wall assisted with analytical procedures, and many
students at the University of Pittsburgh assisted with laboratory tasks.
Two reviewers helped improve this manuscript. The authors declare no
conflict of interest.
NR 17
TC 0
Z9 0
U1 5
U2 14
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0267-9477
EI 1364-5544
J9 J ANAL ATOM SPECTROM
JI J. Anal. At. Spectrom.
PY 2015
VL 30
IS 7
BP 1673
EP 1678
DI 10.1039/c5ja00060b
PG 6
WC Chemistry, Analytical; Spectroscopy
SC Chemistry; Spectroscopy
GA CL5AR
UT WOS:000356971900024
ER
PT J
AU Patel, PP
Datta, MK
Velikokhatnyi, OI
Jampani, P
Hong, D
Poston, JA
Manivannand, A
Kumta, PN
AF Patel, Prasad Prakash
Datta, Moni Kanchan
Velikokhatnyi, Oleg I.
Jampani, Prashanth
Hong, Daeho
Poston, James A.
Manivannand, Ayyakkannu
Kumta, Prashant N.
TI Nanostructured robust cobalt metal alloy based anode electro-catalysts
exhibiting remarkably high performance and durability for proton
exchange membrane fuel cells
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID HYDROGEN OXIDATION REACTION; OXYGEN-REDUCTION REACTION; TOTAL-ENERGY
CALCULATIONS; CORE-SHELL NANOPARTICLES; ROTATING-DISK ELECTRODE; WAVE
BASIS-SET; WATER ELECTROLYSIS; METHANOL ELECTROOXIDATION; TUNGSTEN
CARBIDE; CARBON SUPPORT
AB In recent years, the development of durable and electrochemically active electro-catalyst alloys with reduced noble metal content exhibiting similar or better electrochemical performance than pure noble metal electrocatalysts has gathered considerablemomentumparticularly, for proton exchange membrane fuel cell (PEMFC) application. Engineering such reduced noble metal containing electro-catalyst alloys in nano-scale dimensions with highly active electrochemical surface area (ECSA) will ultimately translate to reduced noble metal loadings to ultra-low levels which will eventually lead to an overall reduction in the capital cost of PEMFCs. Herein we report the development of nanostructured Co-Ir based solid-solution electro-catalyst alloys for the hydrogen oxidation reaction (HOR) further validated by first principles theoretical calculation of the d band center of the transition metal in the solid solution alloys. The theoretical and experimental studies reported herein demonstrate that the nanostructured alloy electro-catalysts comprising 70 at% Co (Co0.7Ir0.3) and 60 at% Co (Co0.6Ir0.4) of crystallite size similar to 4 nm with a high electrochemically active surface area (ECSA) (similar to 56 m(2) g(-1)) exhibit improved electrochemical activity (reduction in overpotential and improved reaction kinetics) for the HOR combined with outstanding durability in contrast to pure Ir nanoparticles (Ir-NPs) as well as state of the art commercial Pt/C system. Moreover, an optimized alloy containing 60 at% Co (Co0.6Ir0.4) showed a remarkable similar to 156% and 92% higher electro-catalytic activity for the HOR than Ir-NPs and commercial 40% Pt/C, respectively, with similar loading and ECSA. The single PEMFC full cell study also shows similar to 85% improved maximum power density for the Co-0.6(Ir-0.4) electrocatalyst compared to 40% Pt/C and excellent electrochemical stability/durability comparable to 40% Pt/C.
C1 [Patel, Prasad Prakash; Kumta, Prashant N.] Univ Pittsburgh, Dept Chem & Petr Engn, Swanson Sch Engn, Pittsburgh, PA 15261 USA.
[Datta, Moni Kanchan; Velikokhatnyi, Oleg I.; Jampani, Prashanth; Hong, Daeho; Kumta, Prashant N.] Univ Pittsburgh, Dept Bioengn, Swanson Sch Engn, Pittsburgh, PA 15261 USA.
[Datta, Moni Kanchan; Velikokhatnyi, Oleg I.; Kumta, Prashant N.] Univ Pittsburgh, Ctr Complex Engn Multifunct Mat, Pittsburgh, PA 15261 USA.
[Poston, James A.; Manivannand, Ayyakkannu] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Kumta, Prashant N.] Univ Pittsburgh, Swanson Sch Engn, Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA.
[Kumta, Prashant N.] Univ Pittsburgh, Sch Dent Med, Pittsburgh, PA 15217 USA.
RP Kumta, PN (reprint author), Univ Pittsburgh, Dept Chem & Petr Engn, Swanson Sch Engn, Pittsburgh, PA 15261 USA.
EM pkumta@pitt.edu
RI Jampani Hanumantha, Prashanth/A-9840-2013
OI Jampani Hanumantha, Prashanth/0000-0001-7159-1993
FU National Science Foundation, CBET [0933141]; Edward R. Weidlein Chair
Professorship funds; Center for Complex Engineered Multifunctional
Materials (CCEMM)
FX This research in part was supported by the National Science Foundation,
CBET - Grant 0933141. PNK acknowledges the Edward R. Weidlein Chair
Professorship funds and the Center for Complex Engineered
Multifunctional Materials (CCEMM) for support of this research and also
for providing the electro-chemical equipment and facilities used in this
research work.
NR 88
TC 7
Z9 7
U1 7
U2 43
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 26
BP 14015
EP 14032
DI 10.1039/c5ta01362c
PG 18
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CL3QL
UT WOS:000356865300050
ER
PT S
AU Van Benthem, MH
Woodbury, DP
AF Van Benthem, Mark H.
Woodbury, Drew P.
BE Kelmelis, EJ
TI An Evaluation of Algorithms and Methods for Compressing and
Decompressing Atmospheric Transmission Data for Use in At-Sensor
Measurements
SO MODELING AND SIMULATION FOR DEFENSE SYSTEMS AND APPLICATIONS X
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Modeling and Simulation for Defense Systems and
Applications X
CY APR 21, 2015
CL Baltimore, MD
SP SPIE
DE Spectral compression; interpolation; principal component analysis; PCA;
atmospheric transmission spectra
ID ORDER DATA ARRAYS; VARIABLE SELECTION; B-SPLINES; SPECTRA; REGRESSION
AB In this paper, we describe the use of various methods of one-dimensional spectral compression by variable selection as well as principal component analysis (PCA) for compressing multi-dimensional sets of spectral data. We have examined methods of variable selection such as wavelength spacing, spectral derivatives, and spectral integration error. After variable selection, reduced transmission spectra must be decompressed for use. Here we examine various methods of interpolation, e.g., linear, cubic spline and piecewise cubic Hermite interpolating polynomial (PCHIP) to recover the spectra prior to estimating at-sensor radiance. Finally, we compressed multi-dimensional sets of spectral transmittance data from moderate resolution atmospheric transmission (MODTRAN) data using PCA. PCA seeks to find a set of basis spectra (vectors) that model the variance of a data matrix in a linear additive sense. Although MODTRAN data are intricate and are used in nonlinear modeling, their base spectra can be reasonably modeled using PCA yielding excellent results in terms of spectral reconstruction and estimation of at-sensor radiance. The major finding of this work is that PCA can be implemented to compress MODTRAN data with great effect, reducing file size, access time and computational burden while producing high-quality transmission spectra for a given set of input conditions.
C1 [Van Benthem, Mark H.; Woodbury, Drew P.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Van Benthem, MH (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM mhvanbe@sandia.gov; dpwoodb@sandia.gov
NR 22
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-594-0
J9 PROC SPIE
PY 2015
VL 9478
AR 947808
DI 10.1117/12.2176593
PG 14
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BC9NT
UT WOS:000356674500006
ER
PT S
AU Wang, ZH
Barnes, CW
Kapustinsky, JS
Morris, CL
Nelson, RO
Yang, F
Zhang, LY
Zhu, RY
AF Wang, Zhehui
Barnes, Cris W.
Kapustinsky, Jon S.
Morris, Chris L.
Nelson, Ron O.
Yang, Fan
Zhang, Liyuan
Zhu, Ren-Yuan
BE Prochazka, I
Sobolewski, R
James, RB
TI Thin scintillators for ultrafast hard X-ray imaging
SO PHOTON COUNTING APPLICATIONS 2015
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT SPIE Conference on Photon Counting Applications
CY APR 13-15, 2015
CL Prague, CZECH REPUBLIC
SP SPIE
DE GHz X-ray imaging; MCP-PMT detectors; fast scintillators; detection
efficiency
ID ABSORPTION-EDGE; ZNO; FILMS; GA
AB A multilayer thin-scintillator concept is described for ultrafast imaging. The individual layer thickness is determined by the spatial resolution and light attenuation length, the number of layers is determined by the overall efficiency. By coating the scintillators with a high quantum-efficiency photocathode, single X-ray photon detection can be achieved using fast scintillators with low light yield. The fast, efficient sensors, when combined with MCP and novel nanostructed electron amplification schemes, is a possible way towards GHz hard X-ray cameras for a few frames of images.
C1 [Wang, Zhehui; Barnes, Cris W.; Kapustinsky, Jon S.; Morris, Chris L.; Nelson, Ron O.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Yang, Fan; Zhang, Liyuan; Zhu, Ren-Yuan] CALTECH, Pasadena, CA 91125 USA.
RP Wang, ZH (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM zwang@lanl.gov
OI Barnes, Cris/0000-0002-3347-0741; Morris,
Christopher/0000-0003-2141-0255
NR 20
TC 0
Z9 0
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-625-1
J9 PROC SPIE
PY 2015
VL 9504
AR 95040N
DI 10.1117/12.2178420
PG 11
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC9LO
UT WOS:000356607100016
ER
PT J
AU Karl, RM
Barbour, A
Komanicky, V
Zhu, CH
Sandy, A
Pierce, MS
You, H
AF Karl, Robert M.
Barbour, Andi
Komanicky, Vladimir
Zhu, Chenhui
Sandy, Alec
Pierce, Michael S.
You, Hoydoo
TI Charge-induced equilibrium dynamics and structure at the
Ag(001)-electrolyte interface
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID X-RAY-SCATTERING; SCANNING-TUNNELING-MICROSCOPY; PHOTON-CORRELATION
SPECTROSCOPY; SINGLE-CRYSTAL ELECTRODES; UNDERPOTENTIAL DEPOSITION;
CYCLIC VOLTAMMETRY; AG(100) ELECTRODE; SURFACE-STRUCTURE;
WATER-MOLECULES; DOUBLE-LAYER
AB The applied potential dependent rate of atomic step motion of the Ag(001) surface in weak NaF electrolyte has been measured using a new extension of the technique of X-ray Photon Correlation Spectroscopy (XPCS). For applied potentials between hydrogen evolution and oxidation, the surface configuration completely changes on timescales of 10(2)-10(4) seconds depending upon the applied potential. These dynamics, directly measured over large areas of the sample surface simultaneously, are related to the surface energy relative to over or under potential. Concurrent specular X-ray scattering measurements reveal how the ordering of the water layers at the interface correlates with the dynamics.
C1 [Karl, Robert M.; Pierce, Michael S.] Rochester Inst Technol, Sch Phys & Astron, Rochester, NY 14623 USA.
[Barbour, Andi; Zhu, Chenhui; You, Hoydoo] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Komanicky, Vladimir] Safarik Univ, Fac Sci, Kosice 04001, Slovakia.
[Sandy, Alec] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Pierce, MS (reprint author), Rochester Inst Technol, Sch Phys & Astron, Rochester, NY 14623 USA.
EM mspsps@rit.edu; you@anl.gov
RI You, Hoydoo/A-6201-2011; Pierce, Michael/D-5570-2014
OI You, Hoydoo/0000-0003-2996-9483; Karl, Robert/0000-0002-2955-5507;
Pierce, Michael/0000-0002-9209-8556
FU US Department of Energy, Office of Basic Energy Sciences
[DE-AC02-06CH11357]; Slovak [VEGA 1/0782/12]
FX This work and the use of the Advanced Photon Source were supported by
the US Department of Energy, Office of Basic Energy Sciences, under
Contract No. DE-AC02-06CH11357. The work at Safarik University was
supported by Slovak Grant No. VEGA 1/0782/12. Data analysis was
conducted using the Large Memory Computer system available through the
RIT Research Computing facilities. The authors wish to thank Junghune
Nam and Suresh Narayanan for their assistance with the experiments at
8ID of the APS, and Yihua Liu for many useful discussions.
NR 50
TC 2
Z9 2
U1 3
U2 14
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 26
BP 16682
EP 16687
DI 10.1039/c5cp02138c
PG 6
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CL3TR
UT WOS:000356874000002
PM 26076726
ER
PT S
AU Rus, B
Bakule, P
Kramer, D
Naylon, J
Thoma, J
Green, JT
Antipenkov, R
Fibrich, M
Novak, J
Batysta, F
Mazanec, T
Drouin, MA
Kasl, K
Base, R
Peceli, D
Koubikova, L
Trojek, P
Boge, R
Lagron, JC
Vyhlidka, S
Weiss, J
Cupal, J
Hrebicek, J
Hribek, P
Durak, M
Polan, J
Koselja, M
Korn, G
Horacek, M
Horacek, J
Himmel, B
Havlicek, T
Honsa, A
Korous, P
Laub, M
Haefner, C
Bayramian, A
Spinka, T
Marshall, C
Johnson, G
Telford, S
Horner, J
Deri, B
Metzger, T
Schultze, M
Mason, P
Ertel, K
Lintern, A
Greenhalgh, J
Edwards, C
Hernandez-Gomez, C
Collier, J
Ditmire, T
Gaul, E
Martinez, M
Frederickson, C
Hammond, D
Malato, C
White, W
Houzvicka, J
AF Rus, B.
Bakule, P.
Kramer, D.
Naylon, J.
Thoma, J.
Green, J. T.
Antipenkov, R.
Fibrich, M.
Novak, J.
Batysta, F.
Mazanec, T.
Drouin, M. A.
Kasl, K.
Base, R.
Peceli, D.
Koubikova, L.
Trojek, P.
Boge, R.
Lagron, J. C.
Vyhlidka, S.
Weiss, J.
Cupal, J.
Hrebicek, J.
Hribek, P.
Durak, M.
Polan, J.
Koselja, M.
Korn, G.
Horacek, M.
Horacek, J.
Himmel, B.
Havlicek, T.
Honsa, A.
Korous, P.
Laub, M.
Haefner, C.
Bayramian, A.
Spinka, T.
Marshall, C.
Johnson, G.
Telford, S.
Horner, J.
Deri, B.
Metzger, T.
Schultze, M.
Mason, P.
Ertel, K.
Lintern, A.
Greenhalgh, J.
Edwards, C.
Hernandez-Gomez, C.
Collier, J.
Ditmire, T.
Gaul, E.
Martinez, M.
Frederickson, C.
Hammond, D.
Malato, C.
White, W.
Houzvicka, J.
BE Korn, G
Silva, LO
TI ELI-Beamlines: Development of next generation short-pulse laser systems
SO RESEARCH USING EXTREME LIGHT: ENTERING NEW FRONTIERS WITH PETAWATT-CLASS
LASERS II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Research Using Extreme Light - Entering New Frontiers with
Petawatt-Class Lasers II
CY APR 13-15, 2015
CL Prague, CZECH REPUBLIC
SP SPIE
DE Diode-Pumped Solid State Lasers (DPSSL); Nd:glass laser; Ti:sapphire
laser; OPCPA; Yb:YAG laser
ID AMPLIFICATION; AMPLIFIER
AB Overview of the laser systems being built for ELI-Beamlines is presented. The facility will make available high-brightness multi-TW ultrashort laser pulses at kHz repetition rate, PW 10 Hz repetition rate pulses, and kilojoule nanosecond pulses for generation of 10 PW peak power. The lasers will extensively employ the emerging technology of diode-pumped solid state lasers (DPSSL) to pump OPCPA and Ti: sapphire broadband amplifiers. These systems will provide the user community with cutting-edge laser resources for programmatic research in generation and applications of high-intensity X-ray sources, in particle acceleration, and in dense-plasma and high-field physics.
C1 [Rus, B.; Bakule, P.; Kramer, D.; Naylon, J.; Thoma, J.; Green, J. T.; Antipenkov, R.; Fibrich, M.; Novak, J.; Batysta, F.; Mazanec, T.; Drouin, M. A.; Kasl, K.; Base, R.; Peceli, D.; Koubikova, L.; Trojek, P.; Boge, R.; Lagron, J. C.; Vyhlidka, S.; Weiss, J.; Cupal, J.; Hrebicek, J.; Hribek, P.; Durak, M.; Polan, J.; Koselja, M.; Korn, G.; Horacek, M.; Horacek, J.; Himmel, B.; Havlicek, T.; Honsa, A.; Korous, P.; Laub, M.] Inst Phys Acad Sci CR, ELI Beamlines, Vvi, Prague 18221 8, Czech Republic.
[Haefner, C.; Bayramian, A.; Spinka, T.; Marshall, C.; Johnson, G.; Telford, S.; Horner, J.; Deri, B.] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Metzger, T.; Schultze, M.] TRUMPF Sci Lasers GmbH, D-71254 Ditzingen, Germany.
[Mason, P.; Ertel, K.; Lintern, A.; Greenhalgh, J.; Edwards, C.; Hernandez-Gomez, C.; Collier, J.] STFC Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Ditmire, T.; Gaul, E.; Martinez, M.; Frederickson, C.; Hammond, D.; Malato, C.; White, W.; Houzvicka, J.] Natl Energet, Austin, TX 78756 USA.
RP Rus, B (reprint author), Inst Phys Acad Sci CR, ELI Beamlines, Vvi, Prague 18221 8, Czech Republic.
RI Batysta, Frantisek/H-2229-2014; Kramer, Daniel/D-9840-2011; Bakule,
Pavel/D-9812-2011; Trojek, Pavel/I-5431-2014
OI Kramer, Daniel/0000-0003-3885-9198;
NR 10
TC 3
Z9 3
U1 7
U2 26
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-636-7
J9 PROC SPIE
PY 2015
VL 9515
AR 95150F
DI 10.1117/12.2184996
PG 11
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC9WA
UT WOS:000356920800004
ER
PT J
AU Atanasiu, CV
Zakharov, LE
Dumitru, D
AF Atanasiu, C. V.
Zakharov, L. E.
Dumitru, D.
TI CALCULATION OF THE REACTION OF A 3D THIN WALL TO AN EXTERNAL KINK MODE
OF ROTATING PLASMA
SO ROMANIAN REPORTS IN PHYSICS
LA English
DT Article
DE Magnetic fusion plasma; tokamak; MHD; instabilities
ID RESISTIVE WALL; EDDY CURRENTS; STABILIZATION; STABILITY; FEEDBACK;
TOKAMAK
AB In this paper we present the response of a 3D thin multiply connected wall to an external kink mode perturbation in axisymmetric tokamak configurations. The necessary computations have been made by using a newly introduced method in the PDE's solving practice: the radial basis functions collocation meshfree method. The wall response is expressed in terms of a stream function of the wall surface currents or by making use of the magnetic vector potential. Both approaches have requested the solving of a diffusion type equation, taking into account the contribution of the wall currents themselves iteratively. Our approach has been applied to the investigation of Resistive Wall Modes in tokamaks.
C1 [Atanasiu, C. V.; Dumitru, D.] Natl Inst Laser Plasma & Radiat Phys, RO-077125 Magurele, Romania.
[Zakharov, L. E.] Princeton Univ, Plasma Phys Lab, Princeton, NJ 08540 USA.
RP Atanasiu, CV (reprint author), Natl Inst Laser Plasma & Radiat Phys, RO-077125 Magurele, Romania.
EM cva@ipp.mpg.de; zakharov@pppl.gov; daniel.dumitru@inflpr.ro
NR 28
TC 0
Z9 0
U1 1
U2 1
PU EDITURA ACAD ROMANE
PI BUCURESTI
PA CALEA 13 SEPTEMBRIE NR 13, SECTOR 5, BUCURESTI 050711, ROMANIA
SN 1221-1451
EI 1841-8759
J9 ROM REP PHYS
JI Rom. Rep. Phys.
PY 2015
VL 67
IS 2
BP 564
EP 572
PG 9
WC Physics, Multidisciplinary
SC Physics
GA CL2AF
UT WOS:000356745300026
ER
PT J
AU Adhikari, SP
Hood, ZD
More, KL
Ivanov, I
Zhang, LF
Gross, M
Lachgar, A
AF Adhikari, Shiba P.
Hood, Zachary D.
More, Karren L.
Ivanov, Ilia
Zhang, Lifeng
Gross, Michael
Lachgar, Abdou
TI Visible light assisted photocatalytic hydrogen generation by
Ta2O5/Bi2O3, TaON/Bi2O3, and Ta3N5/Bi2O3 composites
SO RSC ADVANCES
LA English
DT Article
ID OXYNITRIDE TAON PHOTOANODE; TITANIUM-DIOXIDE; OXIDE COMPOSITES; WATER;
SEMICONDUCTOR; DEGRADATION; TA3N5; IRRADIATION; EVOLUTION; DESIGN
AB Composites comprised of two semiconducting materials with suitable band gaps and band positions have been reported to be effective at enhancing photocatalytic activity in the visible light region of the electromagnetic spectrum. Here, we report the synthesis, complete structural and physical characterizations, and photocatalytic performance of a series of semiconducting oxide composites. UV light active tantalum oxide (Ta2O5) and visible light active tantalum oxynitride (TaON) and tantalum nitride (Ta3N5) were synthesized, and their composites with Bi2O3 were prepared in situ using benzyl alcohol as solvent. The composite prepared using equimolar amounts of Bi2O3 and Ta2O5 leads to the formation of the ternary oxide, bismuth tantalate (BiTaO4) upon calcination at 1000 degrees C. The composites and single phase bismuth tantalate formed were characterized by powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET) surface area measurement, scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-Vis diffuse reflectance spectroscopy, and photoluminescence. The photocatalytic activities of the catalysts were evaluated for generation of hydrogen using aqueous methanol solution under visible light irradiation (lambda >= 420 nm). The results show that as-prepared composite photocatalysts extend the light absorption range and restrict photogenerated charge-carrier recombination, resulting in enhanced photocatalytic activity compared to individual phases. The mechanism for the enhanced photocatalytic activity for the heterostructured composites is elucidated based on observed activity, band positions calculations, and photoluminescence data.
C1 [Adhikari, Shiba P.; Gross, Michael; Lachgar, Abdou] Wake Forest Univ, Dept Chem, Winston Salem, NC 27109 USA.
[Adhikari, Shiba P.; Gross, Michael; Lachgar, Abdou] Wake Forest Univ, Ctr Energy Environm & Sustainabil, Winston Salem, NC 27109 USA.
[Hood, Zachary D.; More, Karren L.; Ivanov, Ilia] Oak Ridge Natl Lab, CNMS, Oak Ridge, TN 37831 USA.
[Zhang, Lifeng] North Carolina A&T State Univ, Joint Sch Nanosci & Nanoengn, Greensboro, NC 27401 USA.
RP Lachgar, A (reprint author), Wake Forest Univ, Dept Chem, Winston Salem, NC 27109 USA.
EM lachgar@wfu.edu
RI More, Karren/A-8097-2016
OI More, Karren/0000-0001-5223-9097
FU Higher Education Research Experiences (HERE) at Oak Ridge National
Laboratory; Phase II Triad Interuniversity Project (TIP); WFU Science
Research Fund
FX A portion of this research was completed as part of a user proposal
through ORNL's Center for Nanophase Materials Sciences (CNMS), which is
a DOE Office of Science User Facility. Zachary D. Hood was supported by
Higher Education Research Experiences (HERE) at Oak Ridge National
Laboratory. The authors would like to thank Ms. Nacole King from North
Carolina State University, Raleigh, NC for her support regarding diffuse
reflectance spectra. Dr. Cynthia Day from Wake Forest University,
Department of Chemistry, is acknowledged for temperature-dependent PXRD
data collection. Support from Phase II Triad Interuniversity Project
(TIP) is also acknowledged. Support from the WFU Science Research Fund
is acknowledged.
NR 53
TC 7
Z9 7
U1 13
U2 69
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2046-2069
J9 RSC ADV
JI RSC Adv.
PY 2015
VL 5
IS 68
BP 54998
EP 55005
DI 10.1039/c5ra06563a
PG 8
WC Chemistry, Multidisciplinary
SC Chemistry
GA CL6BH
UT WOS:000357051100025
ER
PT J
AU Agrawal, A
Yu, HY
Srivastava, S
Choudhury, S
Narayanan, S
Archer, LA
AF Agrawal, Akanksha
Yu, Hsiu-Yu
Srivastava, Samanvaya
Choudhury, Snehashis
Narayanan, Suresh
Archer, Lynden A.
TI Dynamics and yielding of binary self-suspended nanoparticle fluids
SO SOFT MATTER
LA English
DT Article
ID ORGANIC HYBRID MATERIALS; HARD-SPHERE MIXTURES; X-RAY-SCATTERING;
COLLOIDAL GLASSES; PHASE-BEHAVIOR; JAMMING TRANSITION; POLYMER MIXTURES;
ZERO-TEMPERATURE; SUSPENSIONS; LIQUID
AB Yielding and flow transitions in bi-disperse suspensions of particles are studied using a model system comprised of self-suspended spherical nanoparticles. An important feature of the materials is that the nanoparticles are uniformly dispersed in the absence of a solvent. Addition of larger particles to a suspension of smaller ones is found to soften the suspensions, and in the limit of large size disparities, completely fluidizes the material. We show that these behaviors coincide with a speeding-up of de-correlation dynamics of all particles in the suspensions and are accompanied by a reduction in the energy dissipated at the yielding transition. We discuss our findings in terms of ligand-mediated jamming and un-jamming of hairy particle suspensions.
C1 [Agrawal, Akanksha; Srivastava, Samanvaya; Choudhury, Snehashis; Archer, Lynden A.] Cornell Univ, Sch Chem & Biomol Engn, Ithaca, NY 14853 USA.
[Yu, Hsiu-Yu] Univ Penn, Dept Chem & Biomol Engn, Philadelphia, PA 19104 USA.
[Narayanan, Suresh] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Archer, LA (reprint author), Cornell Univ, Sch Chem & Biomol Engn, Ithaca, NY 14853 USA.
EM laa25@cornell.edu
RI Srivastava, Samanvaya/J-1977-2012
OI Srivastava, Samanvaya/0000-0002-3519-7224
FU National Science Foundation [DMR-1006323]; King Abdullah University of
Science and Technology (KAUST) [KUS-C1-018-02]; U.S. DOE
[DE-AC02-06CH11357]
FX This work was supported by the National Science Foundation, Award No.
DMR-1006323 and by Award No. KUS-C1-018-02, made by King Abdullah
University of Science and Technology (KAUST). Use of the Advanced Photon
Source, operated by Argonne National Laboratory, was supported by the
U.S. DOE under Contract No. DE-AC02-06CH11357. We acknowledge Prof. D.L.
Koch for helpful discussions.
NR 68
TC 6
Z9 6
U1 3
U2 17
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
EI 1744-6848
J9 SOFT MATTER
JI Soft Matter
PY 2015
VL 11
IS 26
BP 5224
EP 5234
DI 10.1039/c5sm00639b
PG 11
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA CL2VZ
UT WOS:000356806200006
PM 26053059
ER
PT J
AU Sanchez, L
Patton, P
Anthony, SM
Yi, Y
Yu, Y
AF Sanchez, Lucero
Patton, Paul
Anthony, Stephen M.
Yi, Yi
Yu, Yan
TI Tracking single-particle rotation during macrophage uptake
SO SOFT MATTER
LA English
DT Article
ID OPTICAL NANOPROBES MOONS; JANUS PARTICLES; CELLULAR UPTAKE; LIVING
CELLS; LIVE-CELL; DYNAMICS; NANOPARTICLES; PHAGOCYTOSIS; MICROSCOPY;
MEMBRANE
AB We investigated the rotational dynamics of single microparticles during their internalization by macrophage cells. The microparticles used were triblock patchy particles that display two fluorescent patches on their two poles. The optical anisotropy made it possible to directly visualize and quantify the orientation and rotation of the particles. We show that particles exhibit a mixture of fast and slow rotation as they are uptaken by macrophages and transiently undergo directional rotation during their entry into the cell. The size of the particles and the surface presentation of ligands exerted a negligible influence on this heterogeneity of particle rotation.
C1 [Sanchez, Lucero; Patton, Paul; Yi, Yi; Yu, Yan] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA.
[Anthony, Stephen M.] Sandia Natl Labs, Dept Bioenergy & Def Technol, Albuquerque, NM 87123 USA.
RP Yu, Y (reprint author), Indiana Univ, Dept Chem, Bloomington, IN 47405 USA.
EM yy33@indiana.edu
OI Yu, Yan/0000-0001-6496-5045
FU Indiana University; Graduate Training Program in Quantitative and
Chemical Biology [T32GM109825]; Sandia National Laboratories; United
States Department of Energy under DOE [DE-ACO4-94AL85000]
FX We thank Mr. Jim Powers of the IUB Light Microscopy Imaging Center for
fluorescence imaging assistance, and Indiana University for funding.
L.S. was supported by the Graduate Training Program in Quantitative and
Chemical Biology (T32GM109825) and Indiana University. S.M.A. is
currently a postdoctoral researcher supported by Sandia National
Laboratories. Sandia is a multiprogram laboratory operated by Sandia
Corporation, a Lockheed Martin Company, for the United States Department
of Energy under DOE contract DE-ACO4-94AL85000.
NR 47
TC 5
Z9 5
U1 5
U2 17
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
EI 1744-6848
J9 SOFT MATTER
JI Soft Matter
PY 2015
VL 11
IS 26
BP 5346
EP 5352
DI 10.1039/c5sm00893j
PG 7
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA CL2VZ
UT WOS:000356806200018
PM 26059797
ER
PT J
AU Shi, H
Du, D
Xu, JF
Su, ZH
Peng, QY
AF Shi, Han
Du, Dong
Xu, JianFeng
Su, Zhihong
Peng, Qiyu
TI Design study of dedicated brain PET with polyhedron geometry
SO TECHNOLOGY AND HEALTH CARE
LA English
DT Article
DE Positron emission tomography (PET); brain imaging; polyhedron geometry
ID SCINTILLATOR; SIMULATION; PERFORMANCE
AB BACKGROUND: Despite being the conventional choice, whole body PET cameras with a 76 cm diameter ring are not the optimal means of human brain imaging.
OBJECTIVE: In fact, a dedicated brain PET with a better geometrical structure has the potential to achieve a higher sensitivity, a higher signal-to-noise ratio, and a better imaging performance.
METHODS: In this study, a polyhedron geometrical dedicated brain PET (a dodecahedron design) is compared to three other candidates via their geometrical efficiencies by calculating the Solid Angle Fractions (SAF); the three other candidates include a spherical cap design, a cylindrical design, and the conventional whole body PET.
RESULTS: The spherical cap and the dodecahedron have an identical SAF that is 58.4% higher than that of a 30 cm diameter cylinder and 5.44 times higher than that of a 76 cm diameter cylinder. The conceptual polygon-shape detectors (including pentagon and hexagon detectors based on the PMT-light-sharing scheme instead of the conventional square-shaped block detector module) are presented for the polyhedron PET design. Monte Carlo simulations are performed in order to validate the detector decoding.
CONCLUSIONS: The results show that crystals in a pentagon-shape detector can be successfully decoded by Anger Logic. The new detector designs support the polyhedron PET investigation.
C1 [Shi, Han; Du, Dong] Tsinghua Univ, Beijing 100084, Peoples R China.
[Xu, JianFeng] Huazhong Univ Sci & Technol, Wuhan 430074, Hubei, Peoples R China.
[Su, Zhihong] Southern Med Univ, Guangzhou, Guangdong, Peoples R China.
[Shi, Han; Peng, Qiyu] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Peng, QY (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM qpeng@lbl.gov
FU China Scholarship Council [201206210102]; International Science and
Technology Cooperation Program of China [2013DFB30270]
FX This work was supported in part by China Scholarship Council
(201206210102), International Science and Technology Cooperation Program
of China (2013DFB30270).
NR 19
TC 0
Z9 0
U1 0
U2 4
PU IOS PRESS
PI AMSTERDAM
PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS
SN 0928-7329
EI 1878-7401
J9 TECHNOL HEALTH CARE
JI Technol. Health Care
PY 2015
VL 23
SU 2
BP S615
EP S623
DI 10.3233/THC-151000
PG 9
WC Health Care Sciences & Services; Engineering, Biomedical
SC Health Care Sciences & Services; Engineering
GA CK9CK
UT WOS:000356537900051
PM 26410530
ER
PT S
AU Azad, AK
Chowdhury, DR
Chen, HT
Taylor, AJ
AF Azad, Abul K.
Chowdhury, Dibakar Roy
Chen, Hou-Tong
Taylor, Antoinette J.
BE Anwar, MF
Crowe, TW
Manzur, T
TI Tuning of terahertz metamaterials' resonances via near field coupling
SO TERAHERTZ PHYSICS, DEVICES, AND SYSTEMS IX: ADVANCED APPLICATIONS IN
INDUSTRY AND DEFENSE
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Terahertz Physics, Devices, and Systems IX - Advanced
Applications in Industry and Defense
CY APR 22-23, 2015
CL Baltimore, MD
SP SPIE
DE Metamaterials; Terahertz; Ultrafast; Near field coupling
AB Electromagnetic metamaterials (MMs) consisting of highly conducting sub-wavelength metallic resonators enable many unusual electromagnetic properties at designed frequencies which are not permissible with the naturally occurring materials. The electromagnetic properties of metamaterial are typically controlled by the clever design of the MM unit cell, often termed as meta-molecule, consisting of metallic split ring resonators (SRRs) or meta-atoms. The near field coupling between meta-atoms plays a vital role in tuning the natural resonances of individual SRR and, therefore, has the ability to modify the far-field radiation properties significantly. It is shown that near field coupling between the meta-atoms could lead to resonance tuning, mode splitting, and ultrafast switching in passive and active resonators. In this article, we present a brief review on tuning the metamaterial properties by active and passive manipulation of near field coupling between neighboring split ring resonators.
C1 [Azad, Abul K.; Chowdhury, Dibakar Roy; Chen, Hou-Tong; Taylor, Antoinette J.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
[Chowdhury, Dibakar Roy] Mahindra Ecole Cent, Hyderabad 500043, Andhra Pradesh, India.
RP Azad, AK (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, Ctr Integrated Nanotechnol, POB 1663, Los Alamos, NM 87545 USA.
OI Azad, Abul/0000-0002-7784-7432; Chen, Hou-Tong/0000-0003-2014-7571
NR 18
TC 0
Z9 0
U1 5
U2 13
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-599-5
J9 PROC SPIE
PY 2015
VL 9483
AR 94830G
DI 10.1117/12.2182969
PG 9
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC9TK
UT WOS:000356865100008
ER
PT J
AU Zhang, R
Wang, H
Qian, Y
Rasch, PJ
Easter, RC
Ma, PL
Singh, B
Huang, J
Fu, Q
AF Zhang, R.
Wang, H.
Qian, Y.
Rasch, P. J.
Easter, R. C.
Ma, P. -L.
Singh, B.
Huang, J.
Fu, Q.
TI Quantifying sources, transport, deposition, and radiative forcing of
black carbon over the Himalayas and Tibetan Plateau
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID ASIAN SUMMER MONSOON; LIGHT-ABSORBING PARTICLES; EARTH SYSTEM MODEL;
CLIMATE-CHANGE; SNOW COVER; ICE CORE; ATMOSPHERIC CHEMISTRY;
GENERAL-CIRCULATION; POLLUTION TRANSPORT; WATER AVAILABILITY
AB Black carbon (BC) particles over the Himalayas and Tibetan Plateau (HTP), both airborne and those deposited on snow, have been shown to affect snowmelt and glacier retreat. Since BC over the HTP may originate from a variety of geographical regions and emission sectors, it is essential to quantify the source-receptor relationships of BC in order to understand the contributions of natural and anthropogenic emissions and provide guidance for potential mitigation actions. In this study, we use the Community Atmosphere Model version 5 (CAM5) with a newly developed source-tagging technique, nudged towards the MERRA meteorological reanalysis, to characterize the fate of BC particles emitted from various geographical regions and sectors. Evaluated against observations over the HTP and surrounding regions, the model simulation shows a good agreement in the seasonal variation in the near-surface airborne BC concentrations, providing confidence to use this modeling framework for characterizing BC source-receptor relationships. Our analysis shows that the relative contributions from different geographical regions and source sectors depend on season and location in the HTP. The largest contribution to annual mean BC burden and surface deposition in the entire HTP region is from biofuel and biomass (BB) emissions in South Asia, followed by fossil fuel (FF) emissions from South Asia, then FF from East Asia. The same roles hold for all the seasonal means except for the summer, when East Asia FF becomes more important. For finer receptor regions of interest, South Asia BB and FF have the largest impact on BC in the Himalayas and central Tibetan Plateau, while East Asia FF and BB contribute the most to the northeast plateau in all seasons and southeast plateau in the summer. Central Asia and Middle East FF emissions have relatively more important contributions to BC reaching the northwest plateau, especially in the summer. Although local emissions only contribute about 10% of BC in the HTP, this contribution is extremely sensitive to local emission changes. Lastly, we show that the annual mean radiative forcing (0.42 W m(-2)) due to BC in snow outweighs the BC dimming effect (0.3 W m(-2)) at the surface over the HTP. We also find strong seasonal and spatial variation with a peak value of 5 W m(-2) in the spring over the northwest plateau. Such a large forcing of BC in snow is sufficient to cause earlier snow melting and potentially contribute to the acceleration of glacier retreat.
C1 [Zhang, R.; Huang, J.; Fu, Q.] Lanzhou Univ, Coll Atmospher Sci, Minist Educ, Key Lab Semi Arid Climate Change, Lanzhou 730000, Peoples R China.
[Zhang, R.; Wang, H.; Qian, Y.; Rasch, P. J.; Easter, R. C.; Ma, P. -L.; Singh, B.] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA.
[Zhang, R.; Fu, Q.] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
RP Wang, H (reprint author), Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA.
EM hailong.wang@pnnl.gov
RI qian, yun/E-1845-2011; Ma, Po-Lun/G-7129-2015; Wang, Hailong/B-8061-2010
OI Ma, Po-Lun/0000-0003-3109-5316; Wang, Hailong/0000-0002-1994-4402
FU U.S. Department of Energy (DOE), Office of Science, Biological and
Environmental Research; DOE by Battelle Memorial Institute
[DE-AC05-76RLO1830]; National Science Foundation; DOE Office of Science;
China Scholarship Fund; National Basic Research Program of China
[2012CB955303]; NSFC [41275070]; China 111 project [B13045]
FX This research is based on work supported by the U.S. Department of
Energy (DOE), Office of Science, Biological and Environmental Research
as part of the Earth System Modeling Program. The Pacific Northwest
National Laboratory (PNNL) is operated for DOE by Battelle Memorial
Institute under contract DE-AC05-76RLO1830. The CESM project is
supported by the National Science Foundation and the DOE Office of
Science. R. Zhang acknowledges support from the China Scholarship Fund.
J. Huang and Q. Fu acknowledge support from the National Basic Research
Program of China (2012CB955303), NSFC grant 41275070, and the China 111
project (no. B13045). Computational resources were provided by the
National Energy Research Scientific Computing Center (NERSC), a national
scientific user facility located at Lawrence Berkeley National
Laboratory in Berkeley, California. NERSC is the flagship scientific
computing facility for the Office of Science of DOE.
NR 94
TC 15
Z9 16
U1 6
U2 40
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2015
VL 15
IS 11
BP 6205
EP 6223
DI 10.5194/acp-15-6205-2015
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CK4GG
UT WOS:000356180900013
ER
PT J
AU Gu, L
Pallardy, SG
Hosman, KP
Sun, Y
AF Gu, L.
Pallardy, S. G.
Hosman, K. P.
Sun, Y.
TI Drought-influenced mortality of tree species with different predawn leaf
water dynamics in a decade-long study of a central US forest
SO BIOGEOSCIENCES
LA English
DT Article
ID VEGETATION MORTALITY; WOODY ANGIOSPERMS; CENTRAL MISSOURI; XYLEM
EMBOLISM; DIE-OFF; DECIDUOUS ANGIOSPERMS; SOUTHEASTERN OHIO; STOMATAL
CONTROL; OZARK HIGHLANDS; UNITED-STATES
AB Using decade-long continuous observations of tree mortality and predawn leaf water potential (psi(pd)) at the Missouri Ozark AmeriFlux (MOFLUX) site, we studied how the mortality of important tree species varied and how such variations may be predicted. Water stress determined inter-annual variations in tree mortality with a time delay of 1 year or more, which was correlated fairly tightly with a number of quantitative predictors formulated based on psi(pd) and precipitation regimes. Predictors based on temperature and vapor pressure deficit anomalies worked reasonably well, particularly for moderate droughts. The exceptional drought of the year 2012 drastically increased the mortality of all species, including drought-tolerant oaks, in the subsequent year. The drought-influenced tree mortality was related to the species position along the spectrum of psi(pd) regulation capacity with those in either ends of the spectrum being associated with elevated risk of death. Regardless of species and drought intensity, the psi(pd) of all species recovered rapidly after sufficiently intense rain events in all droughts. This result, together with a lack of immediate leaf and branch desiccation, suggests an absence of catastrophic hydraulic disconnection in the xylem and that tree death was caused by significant but indirect effects. Species differences in the capacity of regulating psi(pd) and its temporal integral were magnified under moderate drought intensities but diminished towards wet and dry extremes. Severe droughts may overwhelm the capacity of even drought-tolerant species to maintain differential levels of water potential as the soil becomes exhausted of available water in the rooting zone, thus rendering them more susceptible to death if predisposed by other factors such as age.
C1 [Gu, L.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Gu, L.] Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA.
[Pallardy, S. G.; Hosman, K. P.] Univ Missouri, Dept Forestry, Columbia, MO 65211 USA.
[Sun, Y.] Univ Texas Austin, Dept Geol Sci, Austin, TX 78712 USA.
RP Gu, L (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA.
EM lianhong-gu@ornl.gov
RI Sun, Ying/G-6611-2016; Gu, Lianhong/H-8241-2014
OI Gu, Lianhong/0000-0001-5756-8738
FU US Department of Energy, Office of Science, Office of Biological and
Environmental Research Program, Climate and Environmental Sciences
Division; US Department of Energy [DE-AC05-00OR22725, DE-FG02-03ER63683]
FX We thank Renee Marchin, Trevor Keenan, Jason Hubbart and two anonymous
referees for critical comments and constructive suggestions. This
material is based upon work supported by the US Department of Energy,
Office of Science, Office of Biological and Environmental Research
Program, Climate and Environmental Sciences Division. ORNL is managed by
UT-Battelle, LLC, for the US Department of Energy under contract
DE-AC05-00OR22725. US Department of Energy support for the University of
Missouri (grant DE-FG02-03ER63683) is gratefully acknowledged.
NR 84
TC 11
Z9 11
U1 7
U2 35
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1726-4170
EI 1726-4189
J9 BIOGEOSCIENCES
JI Biogeosciences
PY 2015
VL 12
IS 10
BP 2831
EP 2845
DI 10.5194/bg-12-2831-2015
PG 15
WC Ecology; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA CK4FW
UT WOS:000356179300001
ER
PT J
AU Bohn, TJ
Melton, JR
Ito, A
Kleinen, T
Spahni, R
Stocker, BD
Zhang, B
Zhu, X
Schroeder, R
Glagolev, MV
Maksyutov, S
Brovkin, V
Chen, G
Denisov, SN
Eliseev, AV
Gallego-Sala, A
McDonald, KC
Rawlins, MA
Riley, WJ
Subin, ZM
Tian, H
Zhuang, Q
Kaplan, JO
AF Bohn, T. J.
Melton, J. R.
Ito, A.
Kleinen, T.
Spahni, R.
Stocker, B. D.
Zhang, B.
Zhu, X.
Schroeder, R.
Glagolev, M. V.
Maksyutov, S.
Brovkin, V.
Chen, G.
Denisov, S. N.
Eliseev, A. V.
Gallego-Sala, A.
McDonald, K. C.
Rawlins, M. A.
Riley, W. J.
Subin, Z. M.
Tian, H.
Zhuang, Q.
Kaplan, J. O.
TI WETCHIMP-WSL: intercomparison of wetland methane emissions models over
West Siberia
SO BIOGEOSCIENCES
LA English
DT Article
ID NORTHERN HIGH-LATITUDES; TERRESTRIAL ECOSYSTEMS; BIOGEOCHEMISTRY MODEL;
ATMOSPHERIC METHANE; PERMAFROST CARBON; CLIMATE-CHANGE; NATURAL
WETLANDS; WINTER FLUXES; CH4 EMISSIONS; EARTH SYSTEM
AB Wetlands are the world's largest natural source of methane, a powerful greenhouse gas. The strong sensitivity of methane emissions to environmental factors such as soil temperature and moisture has led to concerns about potential positive feedbacks to climate change. This risk is particularly relevant at high latitudes, which have experienced pronounced warming and where thawing permafrost could potentially liberate large amounts of labile carbon over the next 100 years. However, global models disagree as to the magnitude and spatial distribution of emissions, due to uncertainties in wetland area and emissions per unit area and a scarcity of in situ observations. Recent intensive field campaigns across the West Siberian Lowland (WSL) make this an ideal region over which to assess the performance of large-scale process-based wetland models in a high-latitude environment. Here we present the results of a follow-up to the Wetland and Wetland CH4 Intercomparison of Models Project (WETCHIMP), focused on the West Siberian Lowland (WETCHIMP-WSL). We assessed 21 models and 5 inversions over this domain in terms of total CH4 emissions, simulated wetland areas, and CH4 fluxes per unit wetland area and compared these results to an intensive in situ CH4 flux data set, several wetland maps, and two satellite surface water products. We found that (a) despite the large scatter of individual estimates, 12-year mean estimates of annual total emissions over the WSL from forward models (5.34 +/- 0.54 TgCH(4) yr(-1)), inversions (6.06 +/- 1.22 TgCH(4) yr(-1)), and in situ observations (3.91 +/- 1.29 TgCH(4) yr(-1)) largely agreed; (b) forward models using surface water products alone to estimate wetland areas suffered from severe biases in CH4 emissions; (c) the interannual time series of models that lacked either soil thermal physics appropriate to the high latitudes or realistic emissions from unsaturated peatlands tended to be dominated by a single environmental driver (inundation or air temperature), unlike those of inversions and more sophisticated forward models; (d) differences in biogeochemical schemes across models had relatively smaller influence over performance; and (e) multiyear or multidecade observational records are crucial for evaluating models' responses to long-term climate change.
C1 [Bohn, T. J.] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85281 USA.
[Melton, J. R.] Environm Canada, Canadian Ctr Climate Modelling & Anal, Victoria, BC, Canada.
[Ito, A.; Maksyutov, S.] Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan.
[Kleinen, T.; Brovkin, V.] Max Planck Inst Meteorol, D-20146 Hamburg, Germany.
[Spahni, R.; Stocker, B. D.] Univ Bern, Inst Phys, Climate & Environm Phys, Bern, Switzerland.
[Spahni, R.] Univ Bern, Oeschger Ctr Climate Change Res, Bern, Switzerland.
[Stocker, B. D.] Univ London Imperial Coll Sci Technol & Med, Dept Life Sci, Ascot, Berks, England.
[Zhang, B.; Tian, H.] Auburn Univ, Int Ctr Climate & Global Change Res, Auburn, AL 36849 USA.
[Zhang, B.; Tian, H.] Auburn Univ, Sch Forestry & Wildlife Sci, Auburn, AL 36849 USA.
[Zhu, X.; Zhuang, Q.] Purdue Univ, Dept Earth Atmospher & Planetary Sci, W Lafayette, IN 47907 USA.
[Zhu, X.] Colorado State Univ, Nat Resource Ecol Lab, Ft Collins, CO 80523 USA.
[Zhu, X.; Riley, W. J.; Subin, Z. M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Schroeder, R.; McDonald, K. C.] CUNY City Coll, New York, NY 10031 USA.
[Schroeder, R.] Univ Hohenheim, Inst Bot, Stuttgart, Germany.
[Glagolev, M. V.] Moscow MV Lomonosov State Univ, Moscow, Russia.
[Glagolev, M. V.] Russian Acad Sci, Inst Forest Sci, Uspenskoye, Russia.
[Glagolev, M. V.; Maksyutov, S.] Tomsk State Univ, Lab Computat Geophys, Tomsk 634050, Russia.
[Glagolev, M. V.] Yugra State Univ, Khanty Mantsiysk, Russia.
[Chen, G.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Denisov, S. N.; Eliseev, A. V.] Russian Acad Sci, AM Obukhov Inst Atmospher Phys, Moscow, Russia.
[Eliseev, A. V.] Kazan Fed Univ, Kazan, Russia.
[Gallego-Sala, A.] Univ Exeter, Dept Geog, Exeter EX4 4RJ, Devon, England.
[Rawlins, M. A.] Univ Massachusetts, Dept Geosci, Amherst, MA 01003 USA.
[Kaplan, J. O.] Univ Lausanne, Inst Earth Surface Dynam, Lausanne, Switzerland.
RP Bohn, TJ (reprint author), Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85281 USA.
EM theodore.bohn@asu.edu
RI Brovkin, Victor/I-7450-2012; Tian, Hanqin/A-6484-2012; Maksyutov,
Shamil/G-6494-2011; Riley, William/D-3345-2015; Brovkin,
Victor/C-2803-2016; Kaplan, Jed/P-1796-2015; Eliseev, Alexey
V./L-8707-2013; Denisov, Sergey/N-2700-2013; Stocker,
Benjamin/K-3194-2015;
OI Zhang, Bowen/0000-0002-8370-0509; Tian, Hanqin/0000-0002-1806-4091;
Maksyutov, Shamil/0000-0002-1200-9577; Riley,
William/0000-0002-4615-2304; Brovkin, Victor/0000-0001-6420-3198;
Kaplan, Jed/0000-0001-9919-7613; Eliseev, Alexey V./0000-0001-7288-7649;
Stocker, Benjamin/0000-0003-2697-9096; Bohn,
Theodore/0000-0002-1880-9129; Melton, Joe/0000-0002-9414-064X
FU COST Action TERRABITES [ES0804]; NASA from the Northern Eurasian Earth
Science Partnership Initiative (NEESPI) [NNX11AR16G]; US National
Science Foundation (NSF) Science, Engineering and Education for
Sustainability (SEES) Post-Doctoral Fellowship program [1216037];
National Science and Engineering Research Council of Canada (NSERC);
German Ministry of Education and Research (CarboPerm-Project, BMBF)
[03G0836C]; Swiss National Science Foundation; European Commission
[243908]; ERC FP7 project EMBRACE [282672]; US National Science
Foundation [EaSM: AGS-1243220]; US Department of Energy [DE-SC0007007,
DE-AC02-05CH11231]; Tomsk State University Competitiveness Improvement
Program; Environment Research and Technology Development Fund (ERTDF),
Ministry of Environment Japan [A-1202]; Russian President grant
[NSh-3894.2014.5]; Russian Foundation for Basic Research [15-05-02457];
Natural Environment Research Council grant (NERC) [NE/I012915/1]
FX The WETCHIMP project received support for collaboration from the COST
Action TERRABITES (ES0804). We thank Dennis P. Lettenmaier at the
University of Washington and NASA grant NNX11AR16G from the Northern
Eurasian Earth Science Partnership Initiative (NEESPI) for the use of
computational resources. T. J. Bohn was supported by grant 1216037 from
the US National Science Foundation (NSF) Science, Engineering and
Education for Sustainability (SEES) Post-Doctoral Fellowship program. J.
R. Melton was supported by a National Science and Engineering Research
Council of Canada (NSERC) visiting Post-Doctoral Fellowship. T. Kleinen
was supported by the German Ministry of Education and Research
(CarboPerm-Project, BMBF Grant No. 03G0836C). R. Spahni was supported by
the Swiss National Science Foundation and by the European Commission
through the FP7 project Past4Future (grant No. 243908). B. D. Stocker
was supported by ERC FP7 project EMBRACE (grant No. 282672). H. Tian and
B. Zhang were supported by US National Science Foundation (EaSM:
AGS-1243220). Q. Zhuang and X. Zhu were supported by the US Department
of Energy with project No. DE-SC0007007. M. V. Glagolev was supported by
a grant in accordance with the Tomsk State University Competitiveness
Improvement Program. S. Maksyutov was supported by Grant A-1202 of
Environment Research and Technology Development Fund (ERTDF), Ministry
of Environment Japan. S. N. Denisov and A. V. Eliseev were supported by
the Russian President grant NSh-3894.2014.5 and by the Russian
Foundation for Basic Research grant 15-05-02457. A. Gallego-Sala was
supported by a Natural Environment Research Council grant (NERC Standard
grant NE/I012915/1). W. J. Riley and Z. M. Subin were supported by the
US Department of Energy contract No. DE-AC02-05CH11231 under the
Regional and Global Climate Modeling (RGCM) Program and the
Next-Generation Ecosystem Experiments (NGEE Arctic) project. We thank
Ben Poulter, at Montana State University, and Elke Hodson, at the US
Department of Energy, for the results of LPJ-WSL. We thank Rita Wania
for the results of LPJ-WhyMe. We thank Bruno Ringeval, at the Institut
National de la Recherche Agronomique, France, for the results of
ORCHIDEE. We thank Peter Hopcroft and Joy Singarayer, at University of
Bristol, UK, for the results of SDGVM. We thank A. Anthony Bloom, at the
University of Edinburgh, UK, for the Bloom et al. (2010) inversion. We
thank Philippe Bousquet, at the Laboratoire des Sciences du Climat et de
l'Environnement, France, for the Reference and Kaplan inversions from
Bousquet et al. (2011). We thank Catherine Prigent, at the Observatoire
de Paris, France, and Fabrice Papa, at the Laboratoire d'Etudes en
Geophysique et Oceanographie Spatiales, France, for the GIEMS data set.
We thank Laurence Smith at the University of California, Los Angeles,
for the Sheng et al. (2004) data set. We thank Anna Peregon, at
Laboratoire des Sciences du Climat et de l'Environnement, France, for
the Peregon et al. (2008) data set. We thank Elaine Matthews, at
NASA/Goddard Institute for Space Studies, for valuable feedback.
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U2 32
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1726-4170
EI 1726-4189
J9 BIOGEOSCIENCES
JI Biogeosciences
PY 2015
VL 12
IS 11
BP 3321
EP 3349
DI 10.5194/bg-12-3321-2015
PG 29
WC Ecology; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA CK4FZ
UT WOS:000356179800011
ER
PT J
AU Hines, WC
Thi, K
Rojec, M
Stanford-Moore, G
Bissell, MJ
AF Hines, William C.
Thi, Kate
Rojec, Maria
Stanford-Moore, Gaelen
Bissell, Mina J.
TI A cytometric atlas of the human breast: Comprehensive characterization
reveals 12 distinct cell populations
SO CANCER RESEARCH
LA English
DT Meeting Abstract
CT AACR Special Conference on Cellular Heterogeneity in the Tumor
Microenvironment
CY FEB 26-MAR 01, 2014
CL San Diego, CA
SP AACR
C1 [Hines, William C.; Thi, Kate; Rojec, Maria; Stanford-Moore, Gaelen; Bissell, Mina J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
EI 1538-7445
J9 CANCER RES
JI Cancer Res.
PD JAN 1
PY 2015
VL 75
IS 1
SU S
MA B86
DI 10.1158/1538-7445.CHTME14-B86
PG 1
WC Oncology
SC Oncology
GA CL0JZ
UT WOS:000356630300123
ER
PT J
AU Soltau, SR
Niklas, J
Dahlberg, PD
Poluektov, OG
Tiede, DM
Mulfort, KL
Utschig, LM
AF Soltau, S. R.
Niklas, J.
Dahlberg, P. D.
Poluektov, O. G.
Tiede, D. M.
Mulfort, K. L.
Utschig, L. M.
TI Aqueous light driven hydrogen production by a Ru-ferredoxin-Co biohybrid
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID ELECTRON-SPIN-RESONANCE; VISIBLE-LIGHT; PHOTOSYSTEM-I; CATALYST;
COBALOXIME; EVOLUTION; COMPLEX; REDUCTION; WATER; EPR
AB Herein we report the creation of a novel solar fuel biohybrid for light-driven H-2 production utilizing the native electron transfer protein ferredoxin (Fd) as a scaffold for binding of a ruthenium photosensitizer (PS) and a molecular cobaloxime catalyst (Co). EPR and transient optical experiments provide direct evidence of a longlived (41.5 ms) Ru(III)-Fd-Co(I) charge separated state formed via an electron relay through the Fd [2Fe-2S] cluster, initiating the catalytic cycle for 2H(+) + 2e(-) -> H-2.
C1 [Soltau, S. R.; Niklas, J.; Dahlberg, P. D.; Poluektov, O. G.; Tiede, D. M.; Mulfort, K. L.; Utschig, L. M.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Dahlberg, P. D.] Univ Chicago, Grad Program Biophys, Chicago, IL 60637 USA.
RP Utschig, LM (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
EM utschig@anl.gov
RI Niklas, Jens/I-8598-2016
OI Niklas, Jens/0000-0002-6462-2680
FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of
Basic Energy Sciences of the U.S. Department of Energy
[DE-AC02-06CH11357]; U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences User Facility [DE-AC02-06CH11357]
FX This work is supported by the Division of Chemical Sciences,
Geosciences, and Biosciences, Office of Basic Energy Sciences of the
U.S. Department of Energy under Contract No. DE-AC02-06CH11357. This
work was performed, in part (full TA spectra), at the Center for
Nanoscale Materials, a U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences User Facility under Contract No.
DE-AC02-06CH11357.
NR 36
TC 10
Z9 10
U1 5
U2 27
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 53
BP 10628
EP 10631
DI 10.1039/c5cc03006d
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CK7YM
UT WOS:000356453200008
PM 26051070
ER
PT J
AU Xi, LL
Qiu, YT
Shi, X
Zhang, WQ
Chen, LD
Singh, DJ
Yang, JH
AF Xi, Lili
Qiu, Yuting
Shi, Xun
Zhang, Wenqing
Chen, Lidong
Singh, David J.
Yang, Jihui
TI Defect-enhanced void filling and novel filled phases of open-structure
skutterudites
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID CONTAINING THERMOELECTRIC SKUTTERUDITES; TRANSPORT-PROPERTIES; COMPOUND
DEFECTS; GA; PERFORMANCE; BARIUM; FIGURE; COSB3; MERIT
AB We report the design of novel filled CoSb3 skutterudite phases based on a combination of filling and Sb-substituted Ga/In defects. Ga/In doped skutterudite phases with Li-, Nd-, and Sm-fillings can be formed via this strategy, which can have relatively wider ranges of carrier concentration than other conventional filled skutterudite phases.
C1 [Xi, Lili; Qiu, Yuting; Shi, Xun; Zhang, Wenqing; Chen, Lidong] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China.
[Zhang, Wenqing] Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China.
[Singh, David J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Yang, Jihui] Univ Washington, Mat Sci & Engn Dept, Seattle, WA 98195 USA.
RP Xi, LL (reprint author), Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China.
EM lilyxi2006@mail.sic.ac.cn
RI shi, xun/B-4499-2009; Zhang, Wenqing/K-1236-2012; Chen,
Lidong/F-2705-2010
OI shi, xun/0000-0002-3806-0303;
FU National Basic Research Program (973-program) of China [2013CB632501];
NSFC [11234012, 51121064, 11204333]; Key Research Program of Chinese
Academy of Sciences [KGZD-EW-T06]; Department of Energy, Office of
Science, Basic Energy Sciences, through the S3TEC Energy Frontier
Research Centre; U.S. Department of Energy [DE-FC26-04NT42278]; GM;
National Science Foundation [1235535]
FX This work is partially supported by the National Basic Research Program
(973-program) of China under Project No. 2013CB632501, NSFC Grants
(11234012, 51121064, and 11204333), and the Key Research Program of
Chinese Academy of Sciences (Grant No. KGZD-EW-T06). Work at ORNL was
supported by the Department of Energy, Office of Science, Basic Energy
Sciences, through the S3TEC Energy Frontier Research Centre. Work at UW
was supported by U.S. Department of Energy under Corporate Agreement No.
DE-FC26-04NT42278, by GM, and by the National Science Foundation under
Award No. 1235535.
NR 38
TC 6
Z9 6
U1 6
U2 41
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 54
BP 10823
EP 10826
DI 10.1039/c5cc03111g
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CL1PU
UT WOS:000356717000007
PM 26051819
ER
PT J
AU Yuan, S
Liu, TF
Feng, DW
Tian, J
Wang, KC
Qin, JS
Zhang, Q
Chen, YP
Bosch, M
Zou, LF
Teat, SJ
Dalgarno, SJ
Zhou, HC
AF Yuan, Shuai
Liu, Tian-Fu
Feng, Dawei
Tian, Jian
Wang, Kecheng
Qin, Junsheng
Zhang, Qiang
Chen, Ying-Pin
Bosch, Mathieu
Zou, Lanfang
Teat, Simon J.
Dalgarno, Scott J.
Zhou, Hong-Cai
TI A single crystalline porphyrinic titanium metal-organic framework
SO CHEMICAL SCIENCE
LA English
DT Article
ID FUNCTIONAL-GROUPS; CARBON-DIOXIDE; PHOTOCATALYSIS; TIO2; EFFICIENT;
CATALYST
AB We successfully assembled the photocatalytic titanium-oxo cluster and photosensitizing porphyrinic linker into a metal-organic framework (MOF), namely PCN-22. A preformed titanium-oxo carboxylate cluster is adopted as the starting material to judiciously control the MOF growth process to afford single crystals. This synthetic method is useful to obtain highly crystalline titanium MOFs, which has been a daunting challenge in this field. Moreover, PCN-22 demonstrated permanent porosity and photocatalytic activities toward alcohol oxidation.
C1 [Yuan, Shuai; Liu, Tian-Fu; Feng, Dawei; Tian, Jian; Wang, Kecheng; Qin, Junsheng; Zhang, Qiang; Chen, Ying-Pin; Bosch, Mathieu; Zou, Lanfang; Zhou, Hong-Cai] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA.
[Teat, Simon J.] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA USA.
[Dalgarno, Scott J.] Heriot Watt Univ Riccarton, Inst Chem Sci, Edinburgh EH14 4AS, Midlothian, Scotland.
RP Zhou, HC (reprint author), Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA.
EM zhou@chem.tamu.edu
RI Tian, Jian/I-8637-2012; Yuan, Shuai/I-5226-2013; Dalgarno,
Scott/A-7358-2010; Feng, Dawei /S-4070-2016; Zhou, Hong-Cai/A-3009-2011
OI Bosch, Mathieu/0000-0002-7284-0602; Yuan, Shuai/0000-0003-3329-0481;
Dalgarno, Scott/0000-0001-7831-012X; Zhou, Hong-Cai/0000-0002-9029-3788
FU Center for Gas Separations Relevant to Clean Energy Technologies, an
Energy Frontier Research Center - U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences [DE-SC0001015]; Office of Naval
Research [N000141310753]; Office of Science, Office of Basic Energy
Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]; U.S.
Department of Energy [DE-AR0000249]; Welch Foundation [A-1725]
FX The photophysical studies of this research was supported by the Center
for Gas Separations Relevant to Clean Energy Technologies, 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-SC0001015. Structural analyses were supported by Office of Naval
Research under Award Number N000141310753. 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. The authors also acknowledge the financial supports
of ARPA-e project funded by the U.S. Department of Energy under Award
Number DE-AR0000249 and Welch Foundation under Award Number A-1725.
NR 40
TC 20
Z9 20
U1 28
U2 146
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2041-6520
EI 2041-6539
J9 CHEM SCI
JI Chem. Sci.
PY 2015
VL 6
IS 7
BP 3926
EP 3930
DI 10.1039/c5sc00916b
PG 5
WC Chemistry, Multidisciplinary
SC Chemistry
GA CK4FE
UT WOS:000356176200033
ER
PT J
AU Knight, AS
Zhou, EY
Francis, MB
AF Knight, Abigail S.
Zhou, Effie Y.
Francis, Matthew B.
TI Development of peptoid-based ligands for the removal of cadmium from
biological media
SO CHEMICAL SCIENCE
LA English
DT Article
ID METAL-BINDING; COMBINATORIAL LIBRARIES; SIDE-CHAINS; COMPLEXES;
DISCOVERY; OLIGOMERS; CARCINOGENESIS; CHELATION; SELECTION; STRESS
AB Cadmium poisoning poses a serious health concern due to cadmium's increasing industrial use, yet there is currently no recommended treatment. The selective coordination of cadmium in a biological environment-i.e. in the presence of serum ions, small molecules, and proteins-is a difficult task. To address this challenge, a combinatorial library of peptoid-based ligands has been evaluated to identify structures that selectively bind to cadmium in human serum with minimal chelation of essential metal ions. Eighteen unique ligands were identified in this screening procedure, and the binding affinity of each was measured using metal titrations monitored by UV-vis spectroscopy. To evaluate the significance of each chelating moiety, sequence rearrangements and substitutions were examined. Analysis of a metalligand complex by NMR spectroscopy highlighted the importance of particular residues. Depletion experiments were performed in serum mimetics and human serum with exogenously added cadmium. These depletion experiments were used to compare and demonstrate the ability of these peptoids to remove cadmium from blood-like mixtures. In one of these depletion experiments, the peptoid sequence was able to deplete the cadmium to a level comparable to the reported acute toxicity limit. Evaluation of the metal selectivity in buffered solution and in human serum was performed to verify minimal off-target binding. These studies highlight a screening platform for the identification of metalligands that are capable of binding in a complex environment. They additionally demonstrate the potential utility of biologically-compatible ligands for the treatment of heavy metal poisoning.
C1 [Knight, Abigail S.; Zhou, Effie Y.; Francis, Matthew B.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Francis, Matthew B.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Francis, MB (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM mbfrancis@berkeley.edu
RI Foundry, Molecular/G-9968-2014
FU NSF [CHE 1059083]; Office of Science, Office of Basic Energy Sciences,
of the U.S. Department of Energy [DE-AC02-05CH11231]; Berkeley Chemical
Biology Graduate Program (NIH) [1 T32 GMO66698]; Philomathia Fellowship
in Environmental Sciences; UC Berkeley Chemistry Department; National
Institutes of Health [GM68933]
FX Funding for this work was generously provided by the NSF (CHE 1059083).
Work at the Molecular Foundry was supported by the Office of Science,
Office of Basic Energy Sciences, of the U.S. Department of Energy under
Contract no. DE-AC02-05CH11231. Additionally, Dr Ronald Zuckermann and
Michael Connolly at the LNBL Molecular Foundry are gratefully
acknowledged for instrumentation support and helpful advice. Vivian Lin,
Carl Onak, and Joel Finbloom are acknowledged for experimental
expertise. A.S.K. was supported by the Berkeley Chemical Biology
Graduate Program (NIH Training Grant 1 T32 GMO66698) and a Philomathia
Fellowship in Environmental Sciences. Summer stipend support for E.Y.Z.
was provided by the UC Berkeley Chemistry Department. We also
acknowledge support for the Central California 900 MHz NMR facility
through grant GM68933 from the National Institutes of Health.
NR 42
TC 7
Z9 7
U1 1
U2 14
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2041-6520
EI 2041-6539
J9 CHEM SCI
JI Chem. Sci.
PY 2015
VL 6
IS 7
BP 4042
EP 4048
DI 10.1039/c5sc00676g
PG 7
WC Chemistry, Multidisciplinary
SC Chemistry
GA CK4FE
UT WOS:000356176200046
ER
PT J
AU Zhang, TT
Lei, WY
Liu, P
Rodriguez, JA
Yu, JG
Qi, Y
Liu, G
Liu, MH
AF Zhang, Tingting
Lei, Wanying
Liu, Ping
Rodriguez, Jose A.
Yu, Jiaguo
Qi, Yang
Liu, Gang
Liu, Minghua
TI Insights into the structure-photoreactivity relationships in
well-defined perovskite ferroelectric KNbO3 nanowires
SO CHEMICAL SCIENCE
LA English
DT Article
ID SURFACE-PLASMON RESONANCE; VISIBLE-LIGHT; PHOTOCATALYTIC ACTIVITY;
HYDROGEN GENERATION; ROOM-TEMPERATURE; ATOMIC-SCALE; SOLAR-LIGHT; WATER;
FACETS; DECOLORIZATION
AB Structure-function correlations are a central theme in heterogeneous (photo) catalysis. In this study, the geometric and electronic structure of perovskite ferroelectric KNbO3 nanowires with respective orthorhombic and monoclinic polymorphs have been systematically addressed. By virtue of aberration-corrected scanning transmission electron microscopy, we directly visualize surface photocatalytic active sites, measure local atomic displacements at an accuracy of several picometers, and quantify ferroelectric polarization combined with first-principles calculations. The photoreactivity of the as-prepared KNbO3 nanowires is assessed toward aqueous rhodamine B degradation under UV light. A synergy between the ferroelectric polarization and electronic structure in photoreactivity enhancement is uncovered, which accounts for the prominent reactivity order: orthorhombic > monoclinic. Additionally, by identifying new photocatalytic products, rhodamine B degradation pathways involving N-deethylation and conjugated structure cleavage are proposed. Our findings not only provide new insights into the structure-photoreactivity relationships in perovskite ferroelectric photocatalysts, but also have broad implications in perovskite-based water splitting and photovoltaics, among others.
C1 [Zhang, Tingting; Lei, Wanying; Liu, Gang; Liu, Minghua] Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China.
[Zhang, Tingting; Qi, Yang] Northeastern Univ, Sch Sci, Inst Mat Phys & Chem, Shenyang 110004, Peoples R China.
[Liu, Ping; Rodriguez, Jose A.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
[Yu, Jiaguo] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China.
RP Liu, G (reprint author), Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China.
EM liug@nanoctr.cn; liuminghua@nanoctr.cn
RI Yu, jiaguo/G-4317-2010; Zhang, Tingting/N-9698-2015; qi,
yang/H-8625-2016
OI Yu, jiaguo/0000-0002-0612-8633; qi, yang/0000-0003-1915-474X
FU National Natural Science Foundation of China [51272048, 51172040];
Ministry of Science and Technology of China (973 Program) [2013CB632402]
FX We thank Prof. Jincai Zhao (Institute of Chemistry, CAS) and Prof. Lin
Gu (Institute of Physics, CAS) for fruitful discussions. We also thank
Prof. Jiaou Wang and Tao Lei for their help in the acquisition of XANES
data at Beijing Synchrotron Radiation Facility of Institute of High
Energy Physics, CAS. This work was supported by the National Natural
Science Foundation of China (51272048, 51172040) and the Ministry of
Science and Technology of China (973 Program, 2013CB632402).
NR 57
TC 13
Z9 13
U1 13
U2 96
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2041-6520
EI 2041-6539
J9 CHEM SCI
JI Chem. Sci.
PY 2015
VL 6
IS 7
BP 4118
EP 4123
DI 10.1039/c5sc00766f
PG 6
WC Chemistry, Multidisciplinary
SC Chemistry
GA CK4FE
UT WOS:000356176200057
ER
PT J
AU Chang, CJ
Gunnlaugsson, T
James, TD
AF Chang, Christopher J.
Gunnlaugsson, Thorfinnur
James, Tony D.
TI Sensor targets
SO CHEMICAL SOCIETY REVIEWS
LA English
DT Editorial Material
C1 [Chang, Christopher J.] Univ Calif Berkeley, Howard Hughes Med Inst, Helen Wills Neurosci Inst, Dept Chem,Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Chang, Christopher J.] Univ Calif Berkeley, Howard Hughes Med Inst, Helen Wills Neurosci Inst, Dept Mol & Cell Biol,Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Gunnlaugsson, Thorfinnur] Univ Dublin, Trinity Coll Dublin, Trinity Biomed Sci Inst, Sch Chem, Dublin 2, Ireland.
[James, Tony D.] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England.
RP Chang, CJ (reprint author), Univ Calif Berkeley, Howard Hughes Med Inst, Helen Wills Neurosci Inst, Dept Chem,Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM chrischang@berkeley.edu; gunnlaut@tcd.ie; t.d.james@bath.ac.uk
RI James, Tony/B-5125-2009;
OI James, Tony/0000-0002-4095-2191; Gunnlaugsson,
Thorfinnur/0000-0003-4814-6853
FU Howard Hughes Medical Institute
NR 10
TC 18
Z9 18
U1 4
U2 16
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0306-0012
EI 1460-4744
J9 CHEM SOC REV
JI Chem. Soc. Rev.
PY 2015
VL 44
IS 13
BP 4176
EP 4178
DI 10.1039/c5cs90058a
PG 3
WC Chemistry, Multidisciplinary
SC Chemistry
GA CL0DU
UT WOS:000356610100001
PM 26065648
ER
PT J
AU Wang, H
Senguttuvan, P
Proffit, DL
Pan, BF
Liao, C
Burrell, AK
Vaughey, JT
Key, B
AF Wang, Hao
Senguttuvan, Premkumar
Proffit, Danielle L.
Pan, Baofei
Liao, Chen
Burrell, Anthony K.
Vaughey, John T.
Key, Baris
TI Formation of MgO during Chemical Magnesiation of Mg-Ion Battery
Materials
SO ECS ELECTROCHEMISTRY LETTERS
LA English
DT Article
ID ALPHA-MANGANESE-DIOXIDE; RECHARGEABLE BATTERIES; CATHODE MATERIALS;
CRYSTAL-STRUCTURE; LITHIUM; CHALLENGE; INSERTION; OXIDES; V2O5
AB Chemical magnesiation of alpha-MnO2, V2O5, Mo6S8 and h-TiO2 using di-n-butylmagnesium/heptane and diphenylmagnesium/THF has been studied using a combination of long range (XRD) and short range (NMR) structural probes. XRD data shows no significant phase transformations in the bulk even though a color change has been observed for h-TiO2 and V2O5 after treatment. Mg-25 MAS NMR shows significant amorphous MgO formation for samples with color change suggestive of concomitant transition metal reduction on the surface. No significant bulk magnesiation due to intercalation has been observed for any of the oxides treated with di-n-butylmagnesium/heptane or diphenylmagnesium/THF solution. (c) 2015 The Electrochemical Society. All rights reserved.
C1 [Wang, Hao; Senguttuvan, Premkumar; Proffit, Danielle L.; Pan, Baofei; Liao, Chen; Burrell, Anthony K.; Vaughey, John T.; Key, Baris] Argonne Natl Lab, Joint Ctr Energy Storage Res, Lemont, IL 60439 USA.
[Wang, Hao; Senguttuvan, Premkumar; Proffit, Danielle L.; Pan, Baofei; Liao, Chen; Burrell, Anthony K.; Vaughey, John T.; Key, Baris] Argonne Natl Lab, Chem Sci & Engn Div, Lemont, IL 60439 USA.
RP Wang, H (reprint author), Argonne Natl Lab, Joint Ctr Energy Storage Res, Lemont, IL 60439 USA.
EM bkey@anl.gov
OI Liao, Chen/0000-0001-5168-6493; Vaughey, John/0000-0002-2556-6129
FU Joint Center for Energy Storage Research, an Energy Innovation Hub -
U.S. Department of Energy, Office of Science, Basic Energy Sciences;
[DE-AC02-06CH11357]
FX This work was supported as part of the Joint Center for Energy Storage
Research, an Energy Innovation Hub funded by the U.S. Department of
Energy, Office of Science, Basic Energy Sciences. The submitted
manuscript has been created by UChicago Argonne, LLC, operator of
Argonne National Laboratory, a U.S. Department of Energy Office of
Science laboratory operated under Contract no. DE-AC02-06CH11357. This
work has benefited from the use of 11-BM beamline at the Advanced Photon
Source at Argonne National Laboratory. We thank Saul H. Lapidus for
experimental support and Clare P. Grey for valuable discussions.
NR 23
TC 6
Z9 6
U1 7
U2 34
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 2162-8726
EI 2162-8734
J9 ECS ELECTROCHEM LETT
JI ECS Electrochem. Lett.
PY 2015
VL 4
IS 8
DI 10.1149/2.0051508eel
PG 4
WC Electrochemistry; Materials Science, Multidisciplinary
SC Electrochemistry; Materials Science
GA CK9EL
UT WOS:000356543300004
ER
PT J
AU Jampani, PH
Velikokhatnyi, O
Kadakia, K
Hong, DH
Damle, SS
Poston, JA
Manivannan, A
Kumta, PN
AF Jampani, Prashanth H.
Velikokhatnyi, Oleg
Kadakia, Karan
Hong, Dae Ho
Damle, Sameer S.
Poston, James A.
Manivannan, Ayyakkannu
Kumta, Prashant N.
TI High energy density titanium doped-vanadium oxide-vertically aligned CNT
composite electrodes for supercapacitor applications
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID CHEMICAL-VAPOR-DEPOSITION; INTELLIGENT WINDOW COATINGS; NANOTUBE FILM
SUBSTRATE; DIOXIDE THIN-FILMS; WAVE BASIS-SET; CARBON NANOTUBE;
ELECTROCHEMICAL CAPACITORS; MANGANESE OXIDE; RUTHENIUM OXIDE; HIGH-POWER
AB In this study, we provide the first report on the supercapacitance behavior of titanium doped vanadium oxide films grown on vertically aligned carbon nanotubes using a chemical vapor deposition (CVD) technique. The capacitance of CVD derived titanium doped vanadium oxide-carbon nanotube composites was measured at different scan rates to evaluate the charge storage behavior. In addition, the electrochemical characteristics of the titanium doped vanadium oxide thin films synthesized by the CVD process were compared to substantiate the propitious effect of the carbon nanotubes on the capacitance of the doped vanadium oxide. Considering the overall materials loading with good rate capability and excellent charge retention up to 400 cycles, it can be noted that attractive capacitance values as high as 310 F g(-1) were reported. Ab initio theoretical studies, demonstrating the substantial improvement in the electronic conductivity of the vanadium oxide due to titanium doping and oxygen vacancies, have also been included corroborating the attractive experimental capacitance response.
C1 [Kadakia, Karan; Damle, Sameer S.; Kumta, Prashant N.] Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA.
[Jampani, Prashanth H.; Velikokhatnyi, Oleg; Hong, Dae Ho; Kumta, Prashant N.] Univ Pittsburgh, Dept Bioengn, Pittsburgh, PA 15261 USA.
[Poston, James A.; Manivannan, Ayyakkannu] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Kumta, Prashant N.] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA.
[Kumta, Prashant N.] Univ Pittsburgh, Ctr Complex Engn Multifunct Mat, Pittsburgh, PA 15261 USA.
RP Kumta, PN (reprint author), Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA.
EM pkumta@pitt.edu
RI Jampani Hanumantha, Prashanth/A-9840-2013
OI Jampani Hanumantha, Prashanth/0000-0001-7159-1993
FU National Science Foundation [CBET-0933141]
FX This research is supported by the National Science Foundation, under
Award CBET-0933141. PNK acknowledges the Edward R. Weidlein Chair
Professorship funds and the Center for Complex Engineered
Multifunctional Materials (CCEMM) for procuring the electrochemical
equipment used in this research work. The authors would also like to
acknowledge the support of Dr Susheng Tan, Nanoscale Fabrication and
Characterization Facility at the University of Pittsburgh for help with
transmission electron microscopy data collection and analyses.
NR 130
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PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 16
BP 8413
EP 8432
DI 10.1039/c4ta06777k
PG 20
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CK6XO
UT WOS:000356372300002
ER
PT J
AU Ramasamy, K
Gupta, RK
Sims, H
Palchoudhury, S
Ivanov, S
Gupta, A
AF Ramasamy, Karthik
Gupta, Ram K.
Sims, Hunter
Palchoudhury, Soubantika
Ivanov, Sergei
Gupta, Arunava
TI Layered ternary sulfide CuSbS2 nanoplates for flexible solid-state
supercapacitors
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID COPPER-ANTIMONY-SULFIDE; ELECTRICAL ENERGY-STORAGE; CHALCOSTIBITE
CUSBS2; ELECTRODE MATERIAL; ION BATTERIES; HIGH-CAPACITY; SOLAR-CELLS;
GRAPHENE; MOS2; PERFORMANCE
AB Layer-structured materials are advantageous for supercapacitor applications owing to their ability to host a variety of atoms or ions, large ionic conductivity and high surface area. In particular, ternary or higher-order layered materials provide a unique opportunity to develop stable supercapacitor devices with high specific capacitance values by offering additional redox sites combined with the flexibility of tuning the interlayer distance by substitution. CuSbS2 is a ternary layered sulfide material that is composed of sustainable and less-toxic elements. We report the results of a systematic study of CuSbS2 nanoplates of varying thickness (4.3 +/- 1.4 to 105 +/- 5.5 nm) for use as supercapacitors along with the effect of ionic size of electrolyte ions on the specific capacitance and long-term cycling performance behavior. We have obtained specific capacitance values as high as 120 F g(-1) for nanoplates with thickness of 55 +/- 6.5 nm using LiOH electrolyte. Electronic structure calculations based on density functional theory predict that with complete surface coverage by electrolyte ions a specific capacitance of over 1160 F g(-1) is achievable using CuSbS2, making it a very attractive layer-structured material for supercapacitor applications. Additionally, the calculations indicate that lithium ions can be intercalated between the van der Waals layers without significantly distorting the CuSbS2 structure, thereby further enhancing the specific capacitance by 85 F g(-1). Quasi-solid-state flexible supercapacitor devices fabricated using CuSbS2 nanoplates exhibit an aerial capacitance value of 40 mF cm(-2) with excellent cyclic stability and no loss of specific capacitance at various bending angles. Moreover, the supercapacitors are operable over a wide temperature range. We have further compared the electrochemical behavior of CuSbS2 with other non-layered phases in the system, namely Cu3SbS3, Cu3SbS4 and Cu12Sb4S13 that clearly highlight the importance of the layered structure for enhancing charge storage.
C1 [Ramasamy, Karthik; Ivanov, Sergei] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Albuquerque, NM 87123 USA.
[Gupta, Ram K.] Pittsburg State Univ, Dept Chem, Pittsburg, KS 66762 USA.
[Sims, Hunter] German Res Sch Simulat Sci, D-52425 Julich, Germany.
[Palchoudhury, Soubantika; Gupta, Arunava] Univ Alabama, Ctr Mat Informat Technol, Tuscaloosa, AL 35487 USA.
RP Ramasamy, K (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Albuquerque, NM 87123 USA.
EM kramasamy@lanl.gov; agupta@mint.ua.edu
RI Ivanov, Sergei/B-5505-2011;
OI Sims, Hunter/0000-0001-7631-2754
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering [DE-FG02-08ER46537]; National Nuclear
Security Administration of the U.S. Department of Energy
[DE-AC52-06NA25396]; Polymer Chemistry Initiative, Pittsburg State
University; National Science Foundation [EPS-0903806]; State of Kansas
through the Kansas Board of Regents
FX Synthesis, X-ray, TEM and SEM characterization work was done at the
University of Alabama, supported by the U.S. Department of Energy,
Office of Basic Energy Sciences, Division of Materials Sciences and
Engineering under Award no. DE-FG02-08ER46537. Some of the analysis was
also performed at the Center for Integrated Nanotechnologies, an Office
of Science User Facility operated for the U.S. Department of Energy
(DOE) Office of Science. 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
U.S. Department of Energy under contract DE-AC52-06NA25396.
Electrochemical measurements were carried out at Pittsburg State
University. Dr Ram Gupta expresses his sincere acknowledgment to the
Polymer Chemistry Initiative, Pittsburg State University for providing
financial and research support. Dr Ram Gupta thanks National Science
Foundation Award no. EPS-0903806 and matching support from the State of
Kansas through the Kansas Board of Regents.
NR 51
TC 5
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U1 17
U2 87
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 25
BP 13263
EP 13274
DI 10.1039/c5ta03193a
PG 12
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CK7ZA
UT WOS:000356455200012
ER
PT J
AU Lu, Y
Armentrout, AA
Li, JC
Tekinalp, HL
Nanda, J
Ozcan, S
AF Lu, Yuan
Armentrout, Aaron A.
Li, Juchuan
Tekinalp, Halil L.
Nanda, Jagjit
Ozcan, Soydan
TI A cellulose nanocrystal-based composite electrolyte with superior
dimensional stability for alkaline fuel cell membranes
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID ANION-EXCHANGE MEMBRANES; HYDROXIDE; NANOCOMPOSITES; NANOCELLULOSE;
CONDUCTIVITY; PERFORMANCE
AB Cellulose nanocrystal (CNC)-based composite films were prepared as a solid electrolyte for alkaline fuel cells. Poly(vinyl alcohol) (PVA) and silica gel hybrid were used to bind the CNCs to form a robust composite film. The mass ratio (i.e., 1 : 1, 1 : 2) of PVA and silica gel was tuned to control the hydrophobicity of the resulting films. Composite films with a range of CNC contents (i.e., 20-60%) were prepared to demonstrate the impact of CNCs on the performance of these materials as a solid electrolyte for alkaline fuel cells. Different from previously reported cross-linked polymer films, CNC-based composite films with 40% hydrophobic binder (i.e., PVA : silica gel = 1 : 2) exhibited simultaneous low water swelling (e.g., similar to 5%) and high water uptake (e.g., similar to 80%) due to the hydrophilicity and extraordinary dimensional stability of CNCs. It also showed a conductivity of 0.044 and 0.065 S cm(-1) at 20 and 60 degrees C, respectively. To the best of our knowledge, the film with 60% CNC and 40% binder is characterized by the lowest hydroxide conductivity-normalized swelling ratio. Decreased CNC contents (i.e., 40 and 20%) resulted in comparable hydroxide conductivity but a greater swelling ratio. These results demonstrate the advantage of CNCs as a key component for a solid electrolyte for alkaline fuel cells over conventional polymers, suggesting the great potential of CNCs in improving the dimensional stability while maintaining the conductivity of existing anion exchange membranes.
C1 [Lu, Yuan; Armentrout, Aaron A.; Li, Juchuan; Tekinalp, Halil L.; Nanda, Jagjit; Ozcan, Soydan] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Ozcan, S (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM ozcans@ornl.gov
RI Li, Juchuan/A-2992-2009;
OI Li, Juchuan/0000-0002-6587-5591; Ozcan, Soydan/0000-0002-3825-4589
FU Laboratory Directed Research and Development Program of Oak Ridge
National Laboratory; US Department of Energy [DE-AC05-00OR22725]
FX The authors thank Michal Lance for his assistance in the FT-IR analysis.
Thanks to the USDA Forest Service Forest Products Laboratory for
providing cellulose nanomaterials as well as information on the
properties of cellulosic nanomaterials. This research was 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. This article has been authored by UT-Battelle,
LLC, under contract no. DE-AC05-00OR22725 with the US Department of
Energy. The U. S. Government is authorized to reproduce and distribute
reprints for Government purposes not withstanding any copyright notation
hereon.
NR 36
TC 5
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U1 12
U2 38
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 25
BP 13350
EP 13356
DI 10.1039/c5ta02304a
PG 7
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CK7ZA
UT WOS:000356455200022
ER
PT J
AU Chen, SM
Li, L
Sun, HW
Sun, J
Lu, BW
AF Chen, Shimou
Li, Liang
Sun, Hanwen
Sun, Jian
Lu, Baowang
TI Nanomaterials for Renewable Energy
SO JOURNAL OF NANOMATERIALS
LA English
DT Editorial Material
C1 [Chen, Shimou] Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China.
[Li, Liang] Soochow Univ, Jiangsu Key Lab Thin Films, Dept Phys, Suzhou 215006, Peoples R China.
[Sun, Hanwen] Dezhou Univ, Coll Med & Nursing, Dezhou 253023, Peoples R China.
[Sun, Jian] Sandia Natl Labs, Livermore, CA 94550 USA.
[Lu, Baowang] Okayama Univ, Grad Sch Environm & Life Sci, Kita Ku, Okayama 7008530, Japan.
RP Chen, SM (reprint author), Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China.
EM chenshimou@ipe.ac.cn
NR 0
TC 0
Z9 0
U1 1
U2 8
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-4110
EI 1687-4129
J9 J NANOMATER
JI J. Nanomater.
PY 2015
AR 143697
DI 10.1155/2015/143697
PG 2
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA CL1IO
UT WOS:000356696200001
ER
PT J
AU Paxton, WF
Bouxsein, NF
Henderson, IM
Gomez, A
Bachand, GD
AF Paxton, Walter F.
Bouxsein, Nathan F.
Henderson, Ian M.
Gomez, Andrew
Bachand, George D.
TI Dynamic assembly of polymer nanotube networks via kinesin powered
microtubule filaments
SO NANOSCALE
LA English
DT Article
ID MOLECULAR MOTORS; DIBLOCK COPOLYMERS; LIPID-BILAYERS; DIFFUSION;
MEMBRANES; VESICLES
AB We describe for the first time how biological nanomotors may be used to actively self-assemble mesoscale networks composed of diblock copolymer nanotubes. The collective force generated by multiple kinesin nanomotors acting on a microtubule filament is large enough to overcome the energy barrier required to extract nanotubes from polymer vesicles comprised of poly(ethylene oxide-b-butadiene) in spite of the higher force requirements relative to extracting nanotubes from lipid vesicles. Nevertheless, large-scale polymer networks were dynamically assembled by the motors. These networks displayed enhanced robustness, persisting more than 24 h post-assembly (compared to 4-5 h for corresponding lipid networks). The transport of materials in and on the polymer membranes differs substantially from the transport on analogous lipid networks. Specifically, our data suggest that polymer mobility in nanotubular structures is considerably different from planar or 3D structures, and is stunted by 1D confinement of the polymer subunits. Moreover, quantum dots adsorbed onto polymer nanotubes are completely immobile, which is related to this 1D confinement effect and is in stark contrast to the highly fluid transport observed on lipid tubules.
C1 [Paxton, Walter F.; Bouxsein, Nathan F.; Henderson, Ian M.; Gomez, Andrew; Bachand, George D.] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA.
RP Paxton, WF (reprint author), Sandia Natl Labs, Ctr Integrated Nanotechnol, POB 5800, Albuquerque, NM 87185 USA.
EM wfpaxto@sandia.gov; gdbacha@sandia.gov
OI Bachand, George/0000-0002-3169-9980
FU U.S. Department of Energy, Office of Basic Energy Sciences, Materials
Sciences and Engineering Division (BES-MSE); BES-MSE; Center for
Integrated Nanotechnologies; U.S. Department of Energy (DOE) Office of
Science [U2012A0072]; U.S. Department of Energy's National Nuclear
Security Administration [DE-AC04-94AL85000]
FX This work was supported by the U.S. Department of Energy, Office of
Basic Energy Sciences, Materials Sciences and Engineering Division
(BES-MSE). N.F. Bouxsein (polymer network assembly, characterization,
and data analysis), W.F. Paxton (polymersome preparation and data
analysis), A. Gomez (polymersome preparation and network assembly) and
G.D. Bachand (kinesin/microtubule motility and analysis) were supported
BES-MSE. I.M. Henderson (polymer synthesis and functionalization) was
supported through the Center for Integrated Nanotechnologies. This work
was performed, in part, at the Center for Integrated Nanotechnologies,
an Office of Science User Facility operated for the U.S. Department of
Energy (DOE) Office of Science (user project number U2012A0072). 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 35
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U1 5
U2 35
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 25
BP 10998
EP 11004
DI 10.1039/c5nr00826c
PG 7
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CK8UZ
UT WOS:000356515900019
PM 25939271
ER
PT J
AU Ievlev, AV
Kalinin, SV
AF Ievlev, Anton V.
Kalinin, Sergei V.
TI Data encoding based on the shape of the ferroelectric domains produced
by using a scanning probe microscope tip
SO NANOSCALE
LA English
DT Article
ID THIN-FILMS; FORCE MICROSCOPY; POLARIZATION; NANOSCALE; RESOLUTION;
ENERGY
AB Ferroelectric materials are broadly considered for information storage due to the extremely high storage and information processing densities they enable. To date, ferroelectric based data storage has invariably relied on the formation of cylindrical domains, allowing for binary information encoding. Here we demonstrate and explore the potential of high-density encoding based on the domain morphology. We explore the domain morphogenesis during the tip-induced polarization switching by sequences of positive and negative pulses in a lithium niobate single-crystal and demonstrate the principles of information coding by the shape and size of the domains. We applied cross-correlation and neural network approaches for recognition of the switching sequence by the shape of the resulting domains and established optimal parameters for domain shape recognition. These studies both provide insight into the highly non-trivial mechanism of domain switching and potentially establish a new paradigm for multilevel information storage and content retrieval memory devices. Furthermore, this approach opens a pathway to exploration of domain switching mechanisms via shape analysis.
C1 [Ievlev, Anton V.] Oak Ridge Natl Lab, Inst Funct Imaging Mat, Oak Ridge, TN 37831 USA.
Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Ievlev, AV (reprint author), Oak Ridge Natl Lab, Inst Funct Imaging Mat, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM ievlevav@ornl.gov
RI Kalinin, Sergei/I-9096-2012; Ievlev, Anton/H-3678-2012
OI Kalinin, Sergei/0000-0001-5354-6152; Ievlev, Anton/0000-0003-3645-0508
FU Oak Ridge National Laboratory by the Scientific User Facilities
Division, Office of Basic Energy Sciences; U.S. Department of Energy
FX The research (AVI and SVK) was conducted at the Center for Nanophase
Materials Sciences, which is sponsored at Oak Ridge National Laboratory
by the Scientific User Facilities Division, Office of Basic Energy
Sciences, and U.S. Department of Energy.
NR 43
TC 4
Z9 4
U1 3
U2 25
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 25
BP 11040
EP 11047
DI 10.1039/c5nr02443a
PG 8
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CK8UZ
UT WOS:000356515900024
PM 26053234
ER
PT J
AU Hufschmid, R
Arami, H
Ferguson, RM
Gonzales, M
Teeman, E
Brush, LN
Browning, ND
Krishnan, KM
AF Hufschmid, Ryan
Arami, Hamed
Ferguson, R. Matthew
Gonzales, Marcela
Teeman, Eric
Brush, Lucien N.
Browning, Nigel D.
Krishnan, Kannan M.
TI Synthesis of phase-pure and monodisperse iron oxide nanoparticles by
thermal decomposition
SO NANOSCALE
LA English
DT Article
ID MAGNETIC FLUID HYPERTHERMIA; CHRONIC KIDNEY-DISEASE; PARTICLE IMAGING
MPI; CONTRAST AGENTS; FE3O4 NANOPARTICLES; OLEATE COMPLEX; SIZE CONTROL;
NANOCRYSTALS; SPECTROSCOPY; TRACERS
AB Superparamagnetic iron oxide nanoparticles (SPIONs) are used for a wide range of biomedical applications requiring precise control over their physical and magnetic properties, which are dependent on their size and crystallographic phase. Here we present a comprehensive template for the design and synthesis of iron oxide nanoparticles with control over size, size distribution, phase, and resulting magnetic properties. We investigate critical parameters for synthesis of monodisperse SPIONs by organic thermal decomposition. Three different, commonly used, iron containing precursors (iron oleate, iron pentacarbonyl, and iron oxyhydroxide) are evaluated under a variety of synthetic conditions. We compare the suitability of these three kinetically controlled synthesis protocols, which have in common the use of iron oleate as a starting precursor or reaction intermediate, for producing nanoparticles with specific size and magnetic properties. Monodisperse particles were produced over a tunable range of sizes from approximately 2-30 nm. Reaction parameters such as precursor concentration, addition of surfactant, temperature, ramp rate, and time were adjusted to kinetically control size and size-distribution, phase, and magnetic properties. In particular, large quantities of excess surfactant (up to 25 : 1 molar ratio) alter reaction kinetics and result in larger particles with uniform size; however, there is often a trade-off between large particles and a narrow size distribution. Iron oxide phase, in addition to nanoparticle size and shape, is critical for establishing magnetic properties such as differential susceptibility (dm/dH) and anisotropy. As an example, we show the importance of obtaining the required size and iron oxide phase for application to Magnetic Particle Imaging (MPI), and describe how phase purity can be controlled. These results provide much of the information necessary to determine which iron oxide synthesis protocol is best suited to a particular application.
C1 [Hufschmid, Ryan; Arami, Hamed; Ferguson, R. Matthew; Gonzales, Marcela; Teeman, Eric; Brush, Lucien N.; Krishnan, Kannan M.] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA.
[Browning, Nigel D.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
RP Krishnan, KM (reprint author), Univ Washington, Dept Mat Sci & Engn, Box 352120, Seattle, WA 98195 USA.
EM kannanmk@uw.edu
OI Browning, Nigel/0000-0003-0491-251X
FU NIH [1RO1EB013689-01/NIBIB, 1R41EB013520-01, 1R42EB013520-01]; Chemical
Imaging Initiative [DE-AC057-6RL01830]; Department of Energy; Department
of Energy's Office of Biological and Environmental Research
FX This work was supported by NIH grants 1RO1EB013689-01/NIBIB,
1R41EB013520-01 and 1R42EB013520-01. Part of this work was conducted at
the University of Washington Nano-Tech User Facility, a member of the
NSF National Nanotechnology Infrastructure Network (NNIN). Research
performed at Pacific Northwest National Laboratory (PNNL) was supported
by the Chemical Imaging Initiative under Contract DE-AC057-6RL01830
operated for the Department of Energy by Battelle. A portion of this
work was performed at EMSL, a national scientific user facility
sponsored by the Department of Energy's Office of Biological and
Environmental Research and located at PNNL.
NR 70
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U1 10
U2 82
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 25
BP 11142
EP 11154
DI 10.1039/c5nr01651g
PG 13
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CK8UZ
UT WOS:000356515900035
PM 26059262
ER
PT J
AU Park, Y
Liu, ZW
Routh, PK
Kuo, CY
Park, YS
Tsai, H
Martinez, JS
Shreve, AP
Cotlet, M
Wang, HL
AF Park, Youngil
Liu, Zhongwei
Routh, Prahlad K.
Kuo, Cheng-Yu
Park, Young-Shin
Tsai, Hsinhan
Martinez, Jennifer S.
Shreve, Andrew P.
Cotlet, Mircea
Wang, Hsing-Lin
TI DNA-assisted photoinduced charge transfer between a cationic
poly(phenylene vinylene) and a cationic fullerene
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID CONJUGATED POLYELECTROLYTE; SOLAR-CELLS; POLYMER; PHOTOLUMINESCENCE;
INTERLAYERS; MORPHOLOGY; INJECTION; ENERGY
AB Water-soluble cationic conjugated poly(phenylene vinylene) (PPV) and cationic fullerene were complexed with negatively charged single stranded DNA and double stranded DNA via electrostatic interactions to achieve photoinduced charge transfer with efficiencies as high as those observed from oppositely charged, cationic PPV and anionic fullerene but with distinctly different quenching mechanisms.
C1 [Park, Youngil; Kuo, Cheng-Yu; Park, Young-Shin; Tsai, Hsinhan; Wang, Hsing-Lin] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
[Liu, Zhongwei; Routh, Prahlad K.; Cotlet, Mircea] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11793 USA.
[Liu, Zhongwei; Routh, Prahlad K.; Cotlet, Mircea] SUNY Stony Brook, Dept Mat Sci, Stony Brook, NY 11790 USA.
[Martinez, Jennifer S.] Los Alamos Natl Lab, Ctr Integrated Technol, Los Alamos, NM 87545 USA.
[Martinez, Jennifer S.] Los Alamos Natl Lab, Inst Mat Sci, Los Alamos, NM 87545 USA.
[Shreve, Andrew P.] Univ New Mexico, Albuquerque, NM 87131 USA.
RP Cotlet, M (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, 735 Brookhaven Ave, Upton, NY 11793 USA.
EM cotlet@bnl.gov; hwang@lanl.gov
RI Liu, Zhongwei/F-1327-2017;
OI Liu, Zhongwei/0000-0002-2678-3125; Park, Young-Shin/0000-0003-4204-1305
FU U.S. Department of Energy, Basic Energy Sciences (BES), Materials
Sciences and Engineering Division, Biomolecular Materials program; Los
Alamos National Laboratory Directed Research and Development Funds; Los
Alamos National Security, LLC, for the National Nuclear Security
Administration of the U.S. Department of Energy [DE-AC52-06NA25396];
U.S. Department of Energy, Office of Basic Energy Sciences
[DE-SC0012704]
FX The authors acknowledge financial support from the U.S. Department of
Energy, Basic Energy Sciences (BES), Materials Sciences and Engineering
Division, Biomolecular Materials program (Y.I.P, H.L.W, J.S.M, and
A.P.S), from Los Alamos National Laboratory Directed Research and
Development Funds (C.K). Los Alamos National Laboratory is operated by
Los Alamos National Security, LLC, for the National Nuclear Security
Administration of the U.S. Department of Energy under contract
DE-AC52-06NA25396. Research was carried out in part at the Center for
Functional Nanomaterials, Brookhaven National Laboratory and supported
by the U.S. Department of Energy, Office of Basic Energy Sciences, by
Contract No. DE-SC0012704 (Z.L., P.K.R. and M.C.).
NR 21
TC 0
Z9 0
U1 3
U2 10
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 24
BP 15675
EP 15678
DI 10.1039/c5cp01309g
PG 4
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CK2QL
UT WOS:000356056000017
PM 25894733
ER
PT J
AU Liu, GK
Cary, SK
Albrecht-Schmitt, TE
AF Liu, Guokui
Cary, Samantha K.
Albrecht-Schmitt, Thomas E.
TI Metastable charge-transfer state of californium(III) compounds
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID ORBIT-LATTICE RELAXATION; ELECTRON-TRANSFER; LAWRENCIUM CHEMISTRY;
VIBRONIC TRANSITIONS; SYSTEMATIC BEHAVIOR; ACTINIDE COMPLEXES;
LUMINESCENCE; LANTHANIDE; CRYSTALS; SPECTRA
AB Among a series of anomalous physical and chemical properties of Cf(III) compounds revealed by recent investigations, the present work addresses the characteristics of the optical spectra of An(HDPA)(3)center dot H2O (An = Am, Cm, and Cf), especially the broadband photoluminescence from Cf(HDPA)(3)center dot H2O induced by ligand-to-metal charge transfer (CT). As a result of strong ion-ligand interactions and the relative ease of reducing Cf(III) to Cf(II), a CT transition occurs at low energy (<3 eV) via the formation of a metastable Cf(II) state. It is shown that the systematic trend in CT transitions of the lanthanide series is not paralleled by actinide elements lighter than Cf(III), and californium represents a turning point in the periodicity of the actinide series. Analyses and modeling of the temperature-dependent luminescence dynamics indicate that the metastable Cf(II) charge-transfer state undergoes radiative and non-radiative relaxations. Broadening of the CT transition arises from strong vibronic coupling and hole-charge interactions in the valence band. The non-radiative relaxation of the metastable CT state results from a competition between phonon-relaxation and thermal tunneling that populates the excited states of Cf(III).
C1 [Liu, Guokui] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Cary, Samantha K.; Albrecht-Schmitt, Thomas E.] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA.
RP Liu, GK (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM gkliu@anl.gov
FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of
Basic Energy Sciences of the U.S. Department of Energy
[DE-AC02-06CH11357, DE-FG02-13ER16414]
FX This work was funded by the Division of Chemical Sciences, Geosciences,
and Biosciences, Office of Basic Energy Sciences of the U.S. Department
of Energy under contract DE-AC02-06CH11357 (GL) and DE-FG02-13ER16414
(SKC and TEA).
NR 33
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 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 24
BP 16151
EP 16157
DI 10.1039/c5cp01855b
PG 7
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CK2QL
UT WOS:000356056000075
PM 26032575
ER
PT J
AU Gardner, JL
He, W
Li, CL
Wong, J
Sale, KL
Simmons, BA
Singh, S
Tanjore, D
AF Gardner, James L.
He, Wei
Li, Chenlin
Wong, Jessica
Sale, Kenneth L.
Simmons, Blake A.
Singh, Seema
Tanjore, Deepti
TI Calorimetric evaluation indicates that lignin conversion to advanced
biofuels is vital to improving energy yields
SO RSC ADVANCES
LA English
DT Article
ID PRETREATMENT TECHNOLOGIES; ELEMENTAL COMPOSITION; ETHANOL-PRODUCTION;
BOMB CALORIMETRY; HEATING VALUES; BIOMASS FUELS; UNITED-STATES; HHV
AB Energy density measurements using bomb calorimetry were applied along with mass yields to calculate energy yields from combinations of individual processes and lignocellulosic feedstocks. Sample preparation and the calorimetric method were fine-tuned for the biofuel process pathway prior to measuring the energy density of liquid fuels and catalysts and solid biomass types (untreated, pelletized, pretreated, and enzymatically hydrolyzed). To statistically establish the method, correlations between biomass composition and energy densities were tested. Strong correlations with lignin, hemicellulose, and ash concentrations were observed and statistically validated (Pearson's coefficient, r = 0.92 and -0.81, respectively). Finally, energy densities were applied along with mass yields on a process pathway including ionic liquid pretreatment (6 L) and saccharification (2 L) of three feedstocks. From switchgrass, eucalyptus, and mixed feedstocks, mass yields of 54.4, 62.0, and 61.7% led to energy yields that were observed to be 59.2, 55.9, and 61.0%, respectively. The disparity in change in mass and energy yields between switchgrass and eucalyptus was identified to have originated from the varied lignin removal during pretreatment. The overall energies recovered from 600 g of switchgrass, eucalyptus, and mixed feedstocks, were 9.8, 10.3, and 10.1 MJ, respectively. Calorimetry can promptly evaluate an integrated multi-process pathway to convert a discrete or mixed feedstock to sugars and other metabolites and eventually to advanced biofuels that can either be hydrocarbons or a mixture thereof. In this particular study, calorimetry and mass yields indicated that lignin removal led to lower energy yield to liquid fuels.
C1 [Gardner, James L.; He, Wei; Li, Chenlin; Wong, Jessica; Tanjore, Deepti] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Biofuels Proc Demonstrat Unit, Berkeley, CA 94720 USA.
[Sale, Kenneth L.; Simmons, Blake A.; Singh, Seema] Joint BioEnergy Inst, Deconstruct Div, Emeryville, CA USA.
[Sale, Kenneth L.; Simmons, Blake A.; Singh, Seema] Sandia Natl Labs, Biol & Mat Sci Ctr, Livermore, CA USA.
RP Tanjore, D (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Biofuels Proc Demonstrat Unit, One Cyclotron Rd MS 978-3200, Berkeley, CA 94720 USA.
EM dtanjore@lbl.gov
FU BioEnergy Technologies Office (BETO) in the Department of Energy's
Energy Efficiency and Renewable Energy (DOE - EERE) division
FX The authors would like to thank the BioEnergy Technologies Office (BETO)
in the Department of Energy's Energy Efficiency and Renewable Energy
(DOE - EERE) division for providing the funds required to pursue these
studies. The authors would specially like to thank Ms Leslie Pezullo,
Program Manager and Dr Jonathan Male, Director at the BETO. The authors
would also like to thank Drs Vicki Thompson and Kevin Kenney from the
Idaho National Laboratory (INL) for providing the biomass feedstocks
tested in the project. Our special thanks to Dr Jian Shi from the Joint
BioEnergy Institute (JBEI) for providing the pre-pelleted feedstocks
that were also tested in this project.
NR 34
TC 0
Z9 0
U1 1
U2 4
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2046-2069
J9 RSC ADV
JI RSC Adv.
PY 2015
VL 5
IS 63
BP 51092
EP 51101
DI 10.1039/c5ra01503k
PG 10
WC Chemistry, Multidisciplinary
SC Chemistry
GA CK5YA
UT WOS:000356303000054
ER
PT J
AU Ivanova, AS
Brinzer, T
Roth, EA
Kusuma, VA
Watkins, JD
Zhou, X
Luebke, D
Hopkinson, D
Washburn, NR
Garrett-Roe, S
Nulwala, HB
AF Ivanova, Anna S.
Brinzer, Thomas
Roth, Elliot A.
Kusuma, Victor A.
Watkins, John D.
Zhou, Xu
Luebke, David
Hopkinson, David
Washburn, Newell R.
Garrett-Roe, Sean
Nulwala, Hunaid B.
TI Eutectic ionic liquid mixtures and their effect on CO2 solubility and
conductivity
SO RSC ADVANCES
LA English
DT Article
ID IUPAC TECHNICAL REPORT; THERMOPHYSICAL PROPERTIES; BINARY-MIXTURES;
CARBON-DIOXIDE; CAPTURE; 1-HEXYL-3-METHYLIMIDAZOLIUM;
BIS(TRIFLUOROMETHYLSULFONYL)IMIDE; ABSORPTION; TRANSITION; SALTS
AB A simple binary system of compounds resembling short-chain versions of popular ionic liquids has been shown to have surprisingly complex properties. Combining methylated versions of pyridinium and pyrrolidinium bis[(trifluoromethyl) sulfonyl] imide gave desirable properties such as low viscosity and high conductivity solubility per unit volume. The binary combinations studied in this study showed that these materials were stable liquids at 50 degrees C and had a threefold improvement in conductivity over [C(6)C(1)im] [Tf2N]. Despite the high densities of these materials, 2D-IR studies indicate increased ion mobility, likely due to the lack of hindering alkyl chains.
C1 [Ivanova, Anna S.; Washburn, Newell R.; Nulwala, Hunaid B.] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA.
[Brinzer, Thomas; Garrett-Roe, Sean] Univ Pittsburgh, Dept Chem, Chevron Sci Ctr, Pittsburgh, PA 15260 USA.
[Zhou, Xu] Liquid Ion Solut LLC, Pittsburgh, PA 15205 USA.
[Roth, Elliot A.; Kusuma, Victor A.; Watkins, John D.; Zhou, Xu; Luebke, David; Hopkinson, David; Nulwala, Hunaid B.] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
RP Nulwala, HB (reprint author), Carnegie Mellon Univ, Dept Chem, 4400 Fifth Ave, Pittsburgh, PA 15213 USA.
EM sgr@pitt.edu; hnulwala@andrew.cmu.edu
OI Kusuma, Victor/0000-0002-7881-4536; Garrett-Roe,
Sean/0000-0001-6199-8773; Nulwala, Hunaid/0000-0001-7481-3723
FU U.S. Department of Energy's National Energy Technology Laboratory
[DE-FE0004000]; ACS PRF Award [53936-DNI6]
FX This research was supported by the U.S. Department of Energy's National
Energy Technology Laboratory under the contract DE-FE0004000. Part of
this work was also supported by ACS PRF Award #53936-DNI6.
NR 35
TC 1
Z9 1
U1 5
U2 32
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2046-2069
J9 RSC ADV
JI RSC Adv.
PY 2015
VL 5
IS 63
BP 51407
EP 51412
DI 10.1039/c5ra06561e
PG 6
WC Chemistry, Multidisciplinary
SC Chemistry
GA CK5YA
UT WOS:000356303000093
ER
PT S
AU Clayton, DA
AF Clayton, Dwight A.
BE Meyendorf, NG
TI Nondestructive Evaluation of Thick Concrete Structures
SO SMART MATERIALS AND NONDESTRUCTIVE EVALUATION FOR ENERGY SYSTEMS 2015
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Smart Materials and Nondestructive Evaluation for Energy
Systems
CY MAR 09-10, 2015
CL San Diego, CA
SP SPIE, American Soc Mech Engineers, Intelligent Mat Forum, Jet Propuls Lab, Natl Sci Fdn
DE Concrete; nondestructive evaluation; nuclear power plant; life
extension; sustainability; suitable test specimen
AB Concrete has been used in the construction of nuclear power plants (NPPs) due to three primary properties: its low cost, structural strength, and ability to shield radiation. Examples of concrete structures important to the safety of Light Water Reactor (LWR) plants include the containment building, spent fuel pool, and cooling towers. Use in these structures has made concrete's long-term performance crucial for the safe operation of commercial NPPs. Extending LWR operating period to 60 years and beyond will likely increase susceptibility and severity of known forms of degradation. New mechanisms of materials degradation are also possible. This creates the need to be able to nondestructively evaluate the current subsurface concrete condition of aging concrete material in NPP structures. The size and complexity of NPP containment structures and heterogeneity of Portland cement concrete make characterization of the degradation extent a difficult task. Specially designed and fabricated test specimens can provide realistic flaws that are similar to actual flaws in terms of how they interact with a particular nondestructive evaluation (NDE) technique. Artificial test blocks allow the isolation of certain testing problems as well as the variation of certain parameters. Representative large heavily reinforced concrete specimens would allow for comparative testing to evaluate the state-of-the-art NDE in this area and to identify additional developments necessary to address the challenges potentially found in NPPs.
C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Clayton, DA (reprint author), Oak Ridge Natl Lab, One Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM claytonda@ornl.gov
NR 6
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-542-1
J9 PROC SPIE
PY 2015
VL 9439
AR 943905
DI 10.1117/12.2083882
PG 9
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics; Physics,
Applied
SC Energy & Fuels; Engineering; Optics; Physics
GA BC8OE
UT WOS:000355931700003
ER
PT S
AU Karim, H
Shuvo, MAI
Islam, MT
Rodriguez, G
Sandoval, A
Nandasiri, MI
Schwarz, AM
Devaraj, A
Noveron, JC
Vijayakumar, M
Lin, YR
AF Karim, Hasanul
Shuvo, Mohammad Arif Ishtiaque
Islam, Md Tariqul
Rodriguez, Gerardo
Sandoval, Armando
Nandasiri, Manjula I.
Schwarz, Ashleigh M.
Devaraj, Arun
Noveron, Juan C.
Vijayakumar, M.
Lin, Yirong
BE Meyendorf, NG
TI Porous carbon/CeO2 composites for Li-ion battery application
SO SMART MATERIALS AND NONDESTRUCTIVE EVALUATION FOR ENERGY SYSTEMS 2015
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Smart Materials and Nondestructive Evaluation for Energy
Systems
CY MAR 09-10, 2015
CL San Diego, CA
SP SPIE, American Soc Mech Engineers, Intelligent Mat Forum, Jet Propuls Lab, Natl Sci Fdn
DE Li-ion battery; energy storage; porous carbon; ceria
ID ELECTRODE
AB Development of new materials hold the key to the fundamental progress in energy storage systems such as Li-ion battery, which is widely used in modern technologies because of their high energy density and extended cycle life. Among these materials, porous carbon is of particular interest because it provides high lithiation and excellent cycling capability by shortening the transport length for Li+ ions with large electrode/electrolyte interface. It has also been demonstrated that transition metal oxide nanoparticle can enhance surface electrochemical reactivity and increase the capacity retention capability for higher number of cycles. Here we investigate porous carbon/ceria (CeO2) nanoparticles composites as an anode material. The high redox potential of ceria is expected to provide a higher potential window as well as increase the specific capacity and energy density of the system. Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), Transmission Electron Microscopy (TEM) is used for material characterization, while battery analyzer is used for measuring the electrochemical performance of the battery.
C1 [Karim, Hasanul; Shuvo, Mohammad Arif Ishtiaque; Rodriguez, Gerardo; Sandoval, Armando; Lin, Yirong] Univ Texas El Paso, Dept Mech Engn, El Paso, TX 79968 USA.
[Islam, Md Tariqul; Noveron, Juan C.] Univ Texas El Paso, Dept Chem, El Paso, TX 79968 USA.
[Nandasiri, Manjula I.; Schwarz, Ashleigh M.; Devaraj, Arun; Noveron, Juan C.; Vijayakumar, M.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Karim, H (reprint author), Univ Texas El Paso, Dept Mech Engn, El Paso, TX 79968 USA.
NR 15
TC 0
Z9 0
U1 2
U2 8
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-542-1
J9 PROC SPIE
PY 2015
VL 9439
AR 94390I
DI 10.1117/12.2084293
PG 6
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics; Physics,
Applied
SC Energy & Fuels; Engineering; Optics; Physics
GA BC8OE
UT WOS:000355931700011
ER
PT S
AU Shuvo, MAI
Karim, H
Islam, MT
Rodriguez, G
Nandasiri, MI
Schwarz, AM
Devaraj, A
Noveron, JC
Vijayakumar, M
Lin, YR
AF Shuvo, Mohammad Arif Ishtiaque
Karim, Hasanul
Islam, Md Tariqul
Rodriguez, Gerardo
Nandasiri, Manjula I.
Schwarz, Ashleigh M.
Devaraj, Arun
Noveron, Juan C.
Vijayakumar, Murugesan
Lin, Yirong
BE Meyendorf, NG
TI High-performance Porous Carbon/CeO2 Nanoparticles Hybrid
Super-capacitors for Energy Storage
SO SMART MATERIALS AND NONDESTRUCTIVE EVALUATION FOR ENERGY SYSTEMS 2015
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Smart Materials and Nondestructive Evaluation for Energy
Systems
CY MAR 09-10, 2015
CL San Diego, CA
SP SPIE, American Soc Mech Engineers, Intelligent Mat Forum, Jet Propuls Lab, Natl Sci Fdn
DE super-capacitor; energy storage; ceria; organic electrolyte
ID SUPERCAPACITOR ELECTRODES; NANOSTRUCTURES
AB Increasing demand for energy storage devices has propelled researchers for developing efficient super-capacitors (SC) with long cycle life and ultrahigh energy density. Carbon-based materials are commonly used as electrode materials for SC. Herein we report a new approach to improve the SC performance utilizing porous carbon/Cerium oxide nanoparticle (PC-CON) hybrid as electrode material synthesized via low temperature hydrothermal method and tetraethyl ammonium tetrafluroborate in acetonitrile as organic electrolyte. Through this approach, charges can be stored not only via electrochemical double layer capacitance (EDLC) from PC but also through pseudo-capacitive effect from CeO2 NPs. The excellent electrode-electrolyte interaction due to the electrochemical properties of the ionic electrolyte provides a better voltage window for the SC. Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM)and X-Ray Diffraction (XRD) measurements were used for the initial characterization of this PC/CeO2 NPs hybrid material system. Electrochemical measurements of SCs was performed using a potentio-galvanostat. It is found that the specific capacitance was improved by 30% using PC-CON system compared with pristine PC system.
C1 [Shuvo, Mohammad Arif Ishtiaque; Karim, Hasanul; Rodriguez, Gerardo; Lin, Yirong] Univ Texas El Paso, Dept Mech Engn, El Paso, TX 79968 USA.
[Islam, Md Tariqul; Noveron, Juan C.] Univ Texas El Paso, Dept Chem, El Paso, TX 79968 USA.
[Nandasiri, Manjula I.; Schwarz, Ashleigh M.; Devaraj, Arun; Vijayakumar, Murugesan] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Shuvo, MAI (reprint author), Univ Texas El Paso, Dept Mech Engn, El Paso, TX 79968 USA.
NR 13
TC 0
Z9 0
U1 5
U2 26
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-542-1
J9 PROC SPIE
PY 2015
VL 9439
AR 94390H
DI 10.1117/12.2084267
PG 8
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics; Physics,
Applied
SC Energy & Fuels; Engineering; Optics; Physics
GA BC8OE
UT WOS:000355931700010
ER
PT S
AU Sun, XY
Lin, B
Bao, JJ
Giurgiutiu, V
Knight, T
Lam, PS
Yu, LY
AF Sun, Xiaoyi
Lin, Bin
Bao, Jingjing
Giurgiutiu, Victor
Knight, Travis
Lam, Poh-Sang
Yu, Lingyu
BE Meyendorf, NG
TI Developing a Structural Health Monitoring System for Nuclear Dry Cask
Storage Canister
SO SMART MATERIALS AND NONDESTRUCTIVE EVALUATION FOR ENERGY SYSTEMS 2015
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Smart Materials and Nondestructive Evaluation for Energy
Systems
CY MAR 09-10, 2015
CL San Diego, CA
SP SPIE, American Soc Mech Engineers, Intelligent Mat Forum, Jet Propuls Lab, Natl Sci Fdn
DE Nuclear energy; dry cask canister; structural health monitoring;
piezoelectric; sensing
ID WAFER ACTIVE SENSORS; WAVES
AB Interim storage of spent nuclear fuel from reactor sites has gained additional importance and urgency for resolving waste-management-related technical issues. In total, there are over 1482 dry cask storage system (DCSS) in use at US plants, storing 57,807 fuel assemblies. Nondestructive material condition monitoring is in urgent need and must be integrated into the fuel cycle to quantify the "state of health", and more importantly, to guarantee the safe operation of radioactive waste storage systems (RWSS) during their extended usage period. A state-of-the-art nuclear structural health monitoring (N-SHM) system based on in-situ sensing technologies that monitor material degradation and aging for nuclear spent fuel DCSS and similar structures is being developed. The N-SHM technology uses permanently installed low-profile piezoelectric wafer sensors to perform long-term health monitoring by strategically using a combined impedance (EMIS), acoustic emission (AE), and guided ultrasonic wave (GUW) approach, called "multi-mode sensing", which is conducted by the same network of installed sensors activated in a variety of ways. The system will detect AE events resulting from crack (case for study in this project) and evaluate the damage evolution; when significant AE is detected, the sensor network will switch to the GUW mode to perform damage localization, and quantification as well as probe "hot spots" that are prone to damage for material degradation evaluation using EMIS approach. The N-SHM is expected to eventually provide a systematic methodology for assessing and monitoring nuclear waste storage systems without incurring human radiation exposure.
C1 [Sun, Xiaoyi; Lin, Bin; Bao, Jingjing; Giurgiutiu, Victor; Knight, Travis; Yu, Lingyu] Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA.
[Lam, Poh-Sang] Savannah River Natl Lab, Aiken, SC USA.
RP Sun, XY (reprint author), Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA.
RI GIURGIUTIU, VICTOR/B-3137-2012; Bao, Jingjing/A-1473-2010
OI Bao, Jingjing/0000-0003-0294-6492
NR 12
TC 0
Z9 0
U1 2
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-542-1
J9 PROC SPIE
PY 2015
VL 9439
AR 94390N
DI 10.1117/12.2085045
PG 10
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics; Physics,
Applied
SC Energy & Fuels; Engineering; Optics; Physics
GA BC8OE
UT WOS:000355931700016
ER
PT J
AU Yager, KG
Forrey, C
Singh, G
Satija, SK
Page, KA
Patton, DL
Douglas, JF
Jones, RL
Karim, A
AF Yager, Kevin G.
Forrey, Christopher
Singh, Gurpreet
Satija, Sushil K.
Page, Kirt A.
Patton, Derek L.
Douglas, Jack F.
Jones, Ronald L.
Karim, Alamgir
TI Thermally-induced transition of lamellae orientation in block-copolymer
films on 'neutral' nanoparticle-coated substrates
SO SOFT MATTER
LA English
DT Article
ID SYMMETRIC DIBLOCK COPOLYMER; MOVING TEMPERATURE-GRADIENT; ORDER-DISORDER
TRANSITION; SELECTIVELY ASSOCIATING HOMOPOLYMER; THIN-FILMS;
PHASE-BEHAVIOR; CYLINDRICAL DOMAINS; PERPENDICULAR ORIENTATION;
PATTERN-FORMATION; ELECTRIC-FIELD
AB Block-copolymer orientation in thin films is controlled by the complex balance between interfacial free energies, including the inter-block segregation strength, the surface tensions of the blocks, and the relative substrate interactions. While block-copolymer lamellae orient horizontally when there is any preferential affinity of one block for the substrate, we recently described how nanoparticle-roughened substrates can be used to modify substrate interactions. We demonstrate how such 'neutral' substrates can be combined with control of annealing temperature to generate vertical lamellae orientations throughout a sample, at all thicknesses. We observe an orientational transition from vertical to horizontal lamellae upon heating, as confirmed using a combination of atomic force microscopy (AFM), neutron reflectometry (NR) and rotational small-angle neutron scattering (RSANS). Using molecular dynamics (MD) simulations, we identify substrate-localized distortions to the lamellar morphology as the physical basis of the novel behavior. In particular, under strong segregation conditions, bending of horizontal lamellae induce a large energetic cost. At higher temperatures, the energetic cost of conformal deformations of lamellae over the rough substrate is reduced, returning lamellae to the typical horizontal orientation. Thus, we find that both surface interactions and temperature play a crucial role in dictating block-copolymer lamellae orientation. Our combined experimental and simulation findings suggest that controlling substrate roughness should provide a useful and robust platform for controlling block-copolymer orientation in applications of these materials.
C1 [Yager, Kevin G.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
[Forrey, Christopher] US FDA, Ctr Devices & Radiol Hlth, Silver Spring, MD USA.
[Singh, Gurpreet; Karim, Alamgir] Univ Akron, Dept Polymer Engn, Akron, OH 44325 USA.
[Satija, Sushil K.] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Page, Kirt A.; Douglas, Jack F.; Jones, Ronald L.] NIST, Div Polymers, Gaithersburg, MD 20899 USA.
[Patton, Derek L.] Univ So Mississippi, Sch Polymers & High Performance Mat, Hattiesburg, MS 39406 USA.
RP Yager, KG (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
EM kyager@bnl.gov; alamgir@uakron.edu
RI Yager, Kevin/F-9804-2011
OI Yager, Kevin/0000-0001-7745-2513
FU U.S. Department of Energy, Office of Basic Energy Sciences
[DE-AC02-98CH10886]
FX Work carried out in part in 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. We thank the Division of Electrical and Software
Engineering (FDA) for use of the high performance computing facilities
and the Division of Imaging and Applied Mathematics (FDA) for additional
computational time. Acknowledgment by AK is made to the Donors of the
American Chemical Society Petroleum Research Fund, New Directions
(ACS-PRF ND) for partial support of this research.
NR 85
TC 6
Z9 6
U1 6
U2 30
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
EI 1744-6848
J9 SOFT MATTER
JI Soft Matter
PY 2015
VL 11
IS 25
BP 5154
EP 5167
DI 10.1039/c5sm00896d
PG 14
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA CK7EM
UT WOS:000356394400020
PM 26053660
ER
PT S
AU Kovacs, E
Zorn, JA
Huang, YJ
Barros, T
Kuriyan, J
AF Kovacs, Erika
Zorn, Julie Anne
Huang, Yongjian
Barros, Tiago
Kuriyan, John
BE Kornberg, RD
TI A Structural Perspective on the Regulation of the Epidermal Growth
Factor Receptor
SO ANNUAL REVIEW OF BIOCHEMISTRY, VOL 84
SE Annual Review of Biochemistry
LA English
DT Review; Book Chapter
DE receptor tyrosine kinase; ligand-induced dimerization; asymmetric dimer;
oncogenic mutations; transmembrane coupling
ID TYROSINE KINASE DOMAIN; FACTOR EGF RECEPTOR; CRYSTAL-STRUCTURE;
TRANSMEMBRANE DOMAIN; JUXTAMEMBRANE DOMAIN; LIGAND-BINDING;
CELL-SURFACE; NEGATIVE COOPERATIVITY; ALLOSTERIC ACTIVATION;
EXTRACELLULAR REGION
AB The epidermal growth factor receptor (EGER) is a receptor tyrosine kinase that plays a critical role in the pathogenesis of many cancers. The structure of intact forms of this receptor has yet to be determined, but intense investigations of fragments of the receptor have provided a detailed view of its activation mechanism, which we review here. Ligand binding converts the receptor to a dimeric form, in which contacts are restricted to the receptor itself, allowing heterodimerization of the four EGFR family members without direct ligand involvement. Activation of the receptor depends on the formation of an asymmetric dimer of kinase domains, in which one kinase domain allostericallv activates the other. Coupling between the extracellular and intracellular domains may involve a switch between alternative crossings of the transmembrane helices, which form dimeric structures. We also discuss how- receptor regulation is compromised by oncogenic mutations and the structural basis for negative cooperativitv in ligand binding.
C1 [Kovacs, Erika; Zorn, Julie Anne; Huang, Yongjian; Barros, Tiago; Kuriyan, John] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Kuriyan, John] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Kovacs, Erika; Zorn, Julie Anne; Huang, Yongjian; Barros, Tiago; Kuriyan, John] Univ Calif Berkeley, Calif Inst Quantitat Biosci, Berkeley, CA 94720 USA.
[Kovacs, Erika; Zorn, Julie Anne; Huang, Yongjian; Barros, Tiago; Kuriyan, John] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
[Kuriyan, John] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Kovacs, E (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA.
EM kovacs@berkeley.edu; jazorn@berkeley.edu; yjhuang@berkeley.edu;
tiago@berkeley.edu; kuriyan@berkeley.edu
OI Barros, Tiago/0000-0002-9807-7625
FU Howard Hughes Medical Institute; NCI NIH HHS [2-R01-CA096504-06, F32
CA177087-02, R01 CA096504]
NR 135
TC 31
Z9 31
U1 8
U2 23
PU ANNUAL REVIEWS
PI PALO ALTO
PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA
SN 0066-4154
BN 978-0-8243-0884-1
J9 ANNU REV BIOCHEM
JI Annu. Rev. Biochem..
PY 2015
VL 84
BP 739
EP 764
DI 10.1146/annurev-biochem-060614-034402
PG 26
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA BC8LD
UT WOS:000355765300028
PM 25621509
ER
PT J
AU Jun, JMV
Altoe, MVP
Aloni, S
Zuckermann, RN
AF Jun, Joo Myung V.
Altoe, M. Virginia P.
Aloni, Shaul
Zuckermann, Ronald N.
TI Peptoid nanosheets as soluble, two-dimensional templates for calcium
carbonate mineralization
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID MECHANICAL-PROPERTIES; CACO3 MINERALIZATION; THIN-FILMS; NACRE;
COMPOSITES; CRYSTALS; DESIGN; GROWTH; BIOMINERALIZATION; CRYSTALLIZATION
AB Nacre-mimetic materials are of great interest, but difficult to synthesize, because they require the ordering of organic and inorganic materials on several length scales. Here we introduce peptoid nanosheets as a versatile two-dimensional platform to develop nacre mimetic materials. Free-floating zwitterionic nanosheets were mineralized with thin films of amorphous calcium carbonate (of 2-20 nm thickness) on their surface to produce planar nacre synthons. These can serve as tunable building blocks to produce layered brick and mortar nanoarchitectures.
C1 [Jun, Joo Myung V.; Altoe, M. Virginia P.; Aloni, Shaul; Zuckermann, Ronald N.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Zuckermann, RN (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM rnzuckermann@lbl.gov
RI Foundry, Molecular/G-9968-2014
FU Defense Threat Reduction Agency [DTRA10027-15875]; Office of Science,
Office of Basic Energy Sciences, U.S. Department of Energy
[DE-AC02-05CH11231]
FX This project was funded by the Defense Threat Reduction Agency under
Contract No. DTRA10027-15875. The work was conducted at the Molecular
Foundry at Lawrence Berkeley National Laboratory, which is supported by
the Office of Science, Office of Basic Energy Sciences, U.S. Department
of Energy, under Contract No. DE-AC02-05CH11231.
NR 39
TC 6
Z9 6
U1 5
U2 36
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 50
BP 10218
EP 10221
DI 10.1039/c5cc03323c
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CK2DR
UT WOS:000356021300033
PM 26021742
ER
PT J
AU Kan, WH
Huq, A
Manthiram, A
AF Kan, W. H.
Huq, A.
Manthiram, A.
TI The first Fe-based Na+-ion cathode with two distinct types of
polyanions: Fe3P5SiO19
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID CRYSTAL-STRUCTURE; BATTERIES; ELECTRODE; BOND; PATHWAYS; VALENCE
AB Herein, we report the synthesis, structure, and electrochemistry of the first Na+-ion cathode with two distinct types of polyanions: Fe3P5SiO19. The Fe-based cathode has a reversible capacity of ca. 70 mA h g(-1); ca. 1.7 Na+ ions per formula can be inserted/extracted at an average voltage of 2.5 V versus Na+/Na.
C1 [Kan, W. H.; Manthiram, A.] Univ Texas Austin, Electrochem Energy Lab, Mat Sci & Engn Program, Austin, TX 78712 USA.
[Huq, A.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN USA.
RP Manthiram, A (reprint author), Univ Texas Austin, Electrochem Energy Lab, Mat Sci & Engn Program, Austin, TX 78712 USA.
EM manth@austin.utexas.edu
RI Huq, Ashfia/J-8772-2013
OI Huq, Ashfia/0000-0002-8445-9649
FU National Science Foundation Materials Interdisciplinary Research Team
(MIRT) [DMR-1122603]; Welch Foundation [F-1254]; Scientific User
Facilities Division, Office of Basic Energy Sciences, U.S. Department of
Energy
FX This work was supported by the National Science Foundation Materials
Interdisciplinary Research Team (MIRT) grant DMR-1122603 and the Welch
Foundation grant F-1254. We thank Dr Maxim Avdeev at the Bragg
Institute, Australian Nuclear Science and Technology Organisation
(ANSTO), for helping with 3DBVSMAPPER. The neutron diffraction
measurement at the Spallation Neutron Source Powgen beamline at the Oak
Ridge National Laboratory was sponsored by the Scientific User
Facilities Division, Office of Basic Energy Sciences, U.S. Department of
Energy. We appreciate the help of Drs Melanie Kirkham and Pamela
Whitfield with the POWGEN instrument.
NR 18
TC 4
Z9 4
U1 0
U2 6
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 52
BP 10447
EP 10450
DI 10.1039/c5cc03070f
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CK5WT
UT WOS:000356298400014
PM 26027701
ER
PT J
AU Ho, MH
O'Hagan, M
Dupuis, M
DuBois, DL
Bullock, RM
Shaw, WJ
Raugei, S
AF Ho, Ming-Hsun
O'Hagan, Molly
Dupuis, Michel
DuBois, Daniel L.
Bullock, R. Morris
Shaw, Wendy J.
Raugei, Simone
TI Water-assisted proton delivery and removal in bio-inspired hydrogen
production catalysts
SO DALTON TRANSACTIONS
LA English
DT Article
ID CYCLIC DIPHOSPHINE LIGANDS; COUPLED ELECTRON-TRANSFER; PENDANT NITROGEN
BASES; H-2 PRODUCTION; ELECTROCATALYTIC OXIDATION; NICKEL
ELECTROCATALYST; COORDINATION SPHERES; RECENT PROGRESS; IRON COMPLEXES;
BASIS-SET
AB Electrocatalysts for H-2 production are envisioned to play an important role in renewable energy utilization systems. Nickel-based catalysts featuring pendant amines functioning as proton relays in the second coordination sphere of the metal center have led to catalysts achieving turnover frequencies as high as 10(7) s(-1) for H-2 production. The fastest rates are observed when water is present in solution, with rates up to 103 times faster than those found in dry solvent. The focus of this paper is to provide mechanistic insight into the unexpected enhancement due to water. Addition of H-2 to [Ni(P-Cy N-2(2)R')(2)](2+) was previously shown to give three isomers of a Ni(0) product with two protonated amines, where the N-H can be endo or exo to the Ni. By investigating the deprotonation of these two N-protonated Ni(0) intermediates resulting from the addition of H-2 to [Ni((P2N2R')-N-Cy)(2)](2+), we observe by NMR spectroscopy studies an enhancement in the rate of deprotonation for protons positioned on the pendant amine next to the metal (endo) vs. protons that are positioned away from the metal (exo). Computational studies suggest that for smaller bases, the desolvation energy of the exogenous base is the primary contribution limiting the rate of endo deprotonation, while steric accessibility and facile proton movement also contribute. For more bulky bases, steric accessibility can play the dominant role. The significant reduction in these barriers observed in the presence of water has important implications for disfavoring less productive catalytic pathways and increasing catalytic rates.
C1 [Ho, Ming-Hsun; O'Hagan, Molly; Dupuis, Michel; DuBois, Daniel L.; Bullock, R. Morris; Shaw, Wendy J.; Raugei, Simone] Pacific NW Natl Lab, Ctr Mol Electrocatalysis, Richland, WA 99352 USA.
RP Shaw, WJ (reprint author), Pacific NW Natl Lab, Ctr Mol Electrocatalysis, POB 999,K2-57, Richland, WA 99352 USA.
EM wendy.shaw@pnnl.gov; simone.raugei@pnnl.gov
RI Bullock, R. Morris/L-6802-2016
OI Bullock, R. Morris/0000-0001-6306-4851
FU Center for Molecular Electrocatalysis, an Energy Frontier Research
Center - U.S. Department of Energy, Office of Science, Office of Basic
Energy Sciences; DOE's Office of Biological and Environmental Research
FX This research was supported as part of the Center for Molecular
Electrocatalysis, an Energy Frontier Research Center funded by the U.S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences. W.J.S. acknowledges the Office of Science Early Career
Research Program through the US Department of Energy, Office of Science,
Office of Basic Energy Sciences. Pacific Northwest National Laboratory
is operated by Battelle for the U.S. Department of Energy. Computer
Resources were provided by the W.R. Wiley Environmental Molecular
Sciences Laboratory (EMSL), a national scientific user facility located
at Pacific Northwest National Laboratory and sponsored by DOE's Office
of Biological and Environmental Research. Computer resources were also
provided by the National Energy Research Computing Center (NERSC) at the
Lawrence Berkeley National Laboratory.
NR 57
TC 13
Z9 13
U1 6
U2 31
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 24
BP 10969
EP 10979
DI 10.1039/c5dt00782h
PG 11
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CK2QT
UT WOS:000356056900012
PM 25999141
ER
PT J
AU Stevens, G
Van Buren, K
Wheeler, E
Atamturktur, S
AF Stevens, Garrison
Van Buren, Kendra
Wheeler, Elizabeth
Atamturktur, Sez
TI Evaluating the fidelity and robustness of calibrated numerical model
predictions An application on a wind turbine blade
SO ENGINEERING COMPUTATIONS
LA English
DT Article
DE Uncertainty quantification; Validation; Experimental modal analysis;
Prediction accuracy; Self-consistency; Test-analysis correlation
ID WAKE AERODYNAMICS; UNCERTAINTY; IDENTIFICATION; VALIDATION; DAMAGE
AB Purpose - Numerical models are being increasingly relied upon to evaluate wind turbine performance by simulating phenomena that are infeasible to measure experimentally. These numerical models, however, require a large number of input parameters that often need to be calibrated against available experiments. Owing to the unavoidable scarcity of experiments and inherent uncertainties in measurements, this calibration process may yield non-unique solutions, i.e. multiple sets of parameters may reproduce the available experiments with similar fidelity. The purpose of this paper is to study the trade-off between fidelity to measurements and the robustness of this fidelity to uncertainty in calibrated input parameters.
Design/methodology/approach - Here, fidelity is defined as the ability of the model to reproduce measurements and robustness is defined as the allowable variation in the input parameters with which the model maintains a predefined level of threshold fidelity. These two vital attributes of model predictiveness are evaluated in the development of a simplified finite element beam model of the CX-100 wind turbine blade.
Findings - Findings of this study show that calibrating the input parameters of a numerical model with the sole objective of improving fidelity to available measurements degrades the robustness of model predictions at both tested and untested settings. A more optimal model may be obtained by calibration methods considering both fidelity and robustness. Multi-criteria Decision Making further confirms the conclusion that the optimal model performance is achieved by maintaining a balance between fidelity and robustness during calibration.
Originality/value - Current methods for model calibration focus solely on fidelity while the authors focus on the trade-off between fidelity and robustness.
C1 [Stevens, Garrison; Wheeler, Elizabeth; Atamturktur, Sez] Clemson Univ, Glenn Dept Civil Engn, Clemson, SC 29634 USA.
[Van Buren, Kendra] Los Alamos Natl Lab, Engn Inst, Los Alamos, NM USA.
RP Atamturktur, S (reprint author), Clemson Univ, Glenn Dept Civil Engn, Clemson, SC 29634 USA.
EM sez@clemson.edu
OI Van Buren, Kendra/0000-0002-0495-2354
NR 38
TC 0
Z9 0
U1 0
U2 8
PU EMERALD GROUP PUBLISHING LIMITED
PI BINGLEY
PA HOWARD HOUSE, WAGON LANE, BINGLEY BD16 1WA, W YORKSHIRE, ENGLAND
SN 0264-4401
EI 1758-7077
J9 ENG COMPUTATION
JI Eng. Comput.
PY 2015
VL 32
IS 3
BP 621
EP 642
DI 10.1108/EC-09-2013-0217
PG 22
WC Computer Science, Interdisciplinary Applications; Engineering,
Multidisciplinary; Mathematics, Interdisciplinary Applications;
Mechanics
SC Computer Science; Engineering; Mathematics; Mechanics
GA CJ9NS
UT WOS:000355829900004
ER
PT J
AU Leow, S
Witter, JR
Vardon, DR
Sharma, BK
Guest, JS
Strathmann, TJ
AF Leow, Shijie
Witter, John R.
Vardon, Derek R.
Sharma, Brajendra K.
Guest, Jeremy S.
Strathmann, Timothy J.
TI Prediction of microalgae hydrothermal liquefaction products from
feedstock biochemical composition
SO GREEN CHEMISTRY
LA English
DT Article
ID WASTE-WATER TREATMENT; FREE FATTY-ACIDS; SUBCRITICAL WATER; ALGAL
BIOMASS; NANNOCHLOROPSIS SP; THERMOCHEMICAL LIQUEFACTION; RAPID
SEPARATION; VEGETABLE-OILS; BATCH CULTURE; FLOW REACTOR
AB Hydrothermal liquefaction (HTL) uses water under elevated temperatures and pressures (200-350 degrees C, 5-20 MPa) to convert biomass into liquid "biocrude" oil. Despite extensive reports on factors influencing microalgae cell composition during cultivation and separate reports on HTL products linked to cell composition, the field still lacks a quantitative model to predict HTL conversion product yield and qualities from feedstock biochemical composition; the tailoring of microalgae feedstock for downstream conversion is a unique and critical aspect of microalgae biofuels that must be leveraged upon for optimization of the whole process. This study developed predictive relationships for HTL biocrude yield and other conversion product characteristics based on HTL of Nannochloropsis oculata batches harvested with a wide range of compositions (23-59% dw lipids, 58-17% dw proteins, 12-22% dw carbohydrates) and a defatted batch (0% dw lipids, 75% dw proteins, 19% dw carbohydrates). HTL biocrude yield (33-68% dw) and carbon distribution (49-83%) increased in proportion to the fatty acid (FA) content. A component additivity model (predicting biocrude yield from lipid, protein, and carbohydrates) was more accurate predicting literature yields for diverse microalgae species than previous additivity models derived from model compounds. FA profiling of the biocrude product showed strong links to the initial feedstock FA profile of the lipid component, demonstrating that HTL acts as a water-based extraction process for FAs; the remainder non-FA structural components could be represented using the defatted batch. These findings were used to introduce a new FA-based model that predicts biocrude oil yields along with other critical parameters, and is capable of adjusting for the wide variations in HTL methodology and microalgae species through the defatted batch. The FA model was linked to an upstream cultivation model (Phototrophic Process Model), providing for the first time an integrated modeling framework to overcome a critical barrier to microalgae-derived HTL biofuels and enable predictive analysis of the overall microalgal-to-biofuel process.
C1 [Leow, Shijie; Witter, John R.; Vardon, Derek R.; Guest, Jeremy S.; Strathmann, Timothy J.] Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA.
[Vardon, Derek R.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA.
[Sharma, Brajendra K.] Univ Illinois, Illinois Sustainable Technol Ctr, Champaign, IL 61801 USA.
RP Leow, S (reprint author), Univ Illinois, Dept Civil & Environm Engn, 205 N Mathews Ave, Urbana, IL 61801 USA.
EM strthmnn@mines.edu
RI Strathmann, Timothy/K-7606-2012; Vardon, Derek/B-8249-2017
OI Strathmann, Timothy/0000-0002-7299-3115; Vardon,
Derek/0000-0002-0199-4524
FU National Science Foundation [1438667, 1438218]; National Research
Foundation Singapore under National Research Foundation (NRF)
Environmental and Water Technologies (EWT) PhD Scholarship Programme
FX This material is based upon work supported by the National Science
Foundation under grant no. 1438667 and 1438218. SL is supported by the
National Research Foundation Singapore under its National Research
Foundation (NRF) Environmental and Water Technologies (EWT) PhD
Scholarship Programme and administered by the Environment and Water
Industry Programme Office (EWI). We thank Ian Bradley (CEE, UIUC) and
Dheeptha Murali (ISTC) for help with microalgae cultivation and biocrude
characterization, respectively. We thank John Scott and Susan Barta at
ISTC for help with TOC analysis. The authors thank Kelly Pisanko
(College of Fine and Applied Arts, UIUC) for assistance in graphic
design (Fig. 1, 8 and the TOC figure).
NR 57
TC 16
Z9 16
U1 14
U2 42
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9262
EI 1463-9270
J9 GREEN CHEM
JI Green Chem.
PY 2015
VL 17
IS 6
BP 3584
EP 3599
DI 10.1039/c5gc00574d
PG 16
WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
SC Chemistry; Science & Technology - Other Topics
GA CK0WK
UT WOS:000355925900045
ER
PT J
AU Zhu, MM
Nan, TX
Liu, M
Ren, W
Zhou, ZY
Sun, NX
AF Zhu, Mingmin
Nan, Tianxiang
Liu, Ming
Ren, Wei
Zhou, Ziyao
Sun, Nian X.
TI Voltage Tuning of Ferromagnetic Resonance and Linewidth in Spinel
Ferrite/Ferroelectric Multiferroic Heterostructures
SO IEEE MAGNETICS LETTERS
LA English
DT Article
DE Magnetic resonance; Couplings; Ferrites; Perpendicular magnetic
anisotropy; Magnetic domains; Electric fields; Microwave devices;
Multiferroics; Magnetoelectric Coupling; Spinel ferrites
AB An energy efficient approach is demonstrated to remarkably shift the ferromagnetic resonance (FMR) field by applying an electric field to various spinel ferrite/ferroelectric multiferroic heterostructures prepared by the low temperature spin-spray technique. The electric field-induced magnetic anisotropy changes, as well as the magnetoelectric (ME) coupling coefficient, were quantitatively determined in all multiferroic heterostructures. The broadness of FMR linewidth upon applying an electric field indicates that inhomogeneous ME coupling takes place, which arises from the ferrroelastic domain switching and polarization elongation. These results provide a framework for realizing compact, light-weight, and ultralow power electronics and microwave devices.
C1 [Zhu, Mingmin; Liu, Ming; Ren, Wei] Xi An Jiao Tong Univ, Key Lab, Elect Mat Res Lab, Minist Educ, Xian 710049, Peoples R China.
[Zhu, Mingmin; Liu, Ming; Ren, Wei] Xi An Jiao Tong Univ, Int Ctr Dielect Res, Xian 710049, Peoples R China.
[Nan, Tianxiang; Sun, Nian X.] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA.
[Zhou, Ziyao] Argonne Natl Lab, Div Energy Syst, Lemont, IL 60439 USA.
RP Liu, M (reprint author), Xi An Jiao Tong Univ, Key Lab, Elect Mat Res Lab, Minist Educ, Xian 710049, Peoples R China.
EM mingliu@mail.xjtu.edu.cn; wren@mail.xjtu.edu.cn
RI Zhou, Ziyao/N-8398-2015; Nan, Tianxiang/O-3820-2015; Nan,
Tianxiang/A-8020-2016; Sun, Nian Xiang/F-9590-2010; Liu,
Ming/B-4143-2009
OI Zhou, Ziyao/0000-0002-2389-1673; Sun, Nian Xiang/0000-0002-3120-0094;
Liu, Ming/0000-0002-6310-948X
FU Natural Science Foundation of China [51472199, 51332003]; National 111
Project of China [B14040]; Fundamental Research Funds for the Central
Universities; Recruitment Program of Global Youth Experts
FX This work was supported by the Natural Science Foundation of China under
Grant 51472199, 51332003, the National 111 Project of China (B14040),
and the Fundamental Research Funds for the Central Universities. The
work of M. Liu was supported by the Recruitment Program of Global Youth
Experts.
NR 26
TC 2
Z9 2
U1 2
U2 20
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1949-307X
J9 IEEE MAGN LETT
JI IEEE Magn. Lett.
PY 2015
VL 6
BP 1
EP 4
AR 2500204
DI 10.1109/LMAG.2015.2425360
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA CK4CB
UT WOS:000356165500001
ER
PT J
AU Biswal, HS
Bhattacharyya, S
Bhattacherjee, A
Wategaonkar, S
AF Biswal, Himansu S.
Bhattacharyya, Surjendu
Bhattacherjee, Aditi
Wategaonkar, Sanjay
TI Nature and strength of sulfur-centred hydrogen bonds: laser
spectroscopic investigations in the gas phase and quantum-chemical
calculations
SO INTERNATIONAL REVIEWS IN PHYSICAL CHEMISTRY
LA English
DT Review
DE Sulfur centred hydrogen bond; hydrogen sulphide; methionine;
phenylalanine; dipeptides; ZEKE spectroscopy; Birge-Sponer; S-H center
dot center dot center dot O interaction; O-H center dot center dot
center dot S interaction; N-H center dot center dot center dot S
interaction; S-H center dot center dot center dot pi interaction
ID CENTER-DOT-S; VAN-DER-WAALS; AB-INITIO CALCULATIONS; ANALYZED THRESHOLD
IONIZATION; INFRARED MATRIX-ISOLATION; ISOLATION VIBRATIONAL-SPECTRA;
KINETIC-ENERGY PHOTOELECTRON; ACID-BASE FORMALISM; N-BODY CLUSTERS; C-H
BONDS
AB The importance of Sulfur centred hydrogen bonds (SCHBs) cannot be underestimated given the current day knowledge of its non-covalent interactions prevalent in many biopolymers as well as in organic systems. Based on the distance/angle constraints available from the structural database, these interactions have been interchangeably termed as van der Waals/hydrogen bonded complexes. There is a lack of sufficient spectroscopic evidence that can unequivocally term these interactions as hydrogen bonding interactions. In this review we present laser spectroscopic investigations of isolated binary complexes of H-bond donor-acceptor molecules containing Sulfur atom. The complexes were formed using supersonic jet expansion method and the IR/UV spectroscopic investigations were carried out on mass selected binary complexes. The pertinent questions regarding SCHBs addressed herein are (1) Is electronegativity the controlling factor to be a potent H-bond donor/acceptor? (2) How do SCHBs compare with their oxygen counterpart? (3) What is the nature of SCHBs, i.e. what are the dominating forces in stabilising these hydrogen bonds? (4) Do SCHBs follow classical H-bond acid-base formalism? (5) Are SCHBs found in peptides and proteins? If so, what are their strengths? Do they control the structure of the peptides? The experimental investigations were also supported by high level of ab initio computations.
C1 [Biswal, Himansu S.] Natl Inst Sci Educ & Res, Sch Chem Sci, Inst Phys Campus, Bhubaneswar 751005, Odisha, India.
[Bhattacharyya, Surjendu; Bhattacherjee, Aditi; Wategaonkar, Sanjay] Tata Inst Fundamental Res, Dept Chem Sci, Bombay 400005, Maharashtra, India.
[Bhattacharyya, Surjendu] Acad Sinica, IAMS, Taipei 115, Taiwan.
[Bhattacherjee, Aditi] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Wategaonkar, S (reprint author), Tata Inst Fundamental Res, Dept Chem Sci, Homi Bhabha Rd, Bombay 400005, Maharashtra, India.
EM sanwat@tifr.res.in
OI Biswal, Himansu S./0000-0003-0791-2259
FU French National Research Agency (ANR) [ANR-08-BLAN-0158-01]; 'Triangle
de la Physique' Foundation [2008-053TSERP-BIO]; MEXT Japan [26108504,
2507]; JSPS [26288002]
FX Most of the work reported in this review was supported by TIFR, India.
The work reported in Ref. 113 was supported by the French National
Research Agency (ANR) [grant number ANR-08-BLAN-0158-01] and the
'Triangle de la Physique' Foundation [grant number 2008-053TSERP-BIO].
The work reported in Ref. 136 and 159 was supported by the Grant-in-Aid
for Scientific Research [project number 26108504 on Innovative Area
[2507] from MEXT Japan and number 26288002 from JSPS].
NR 239
TC 9
Z9 9
U1 9
U2 45
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0144-235X
EI 1366-591X
J9 INT REV PHYS CHEM
JI Int. Rev. Phys. Chem.
PY 2015
VL 34
IS 1
BP 99
EP 160
DI 10.1080/0144235X.2015.1022946
PG 62
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CK4VG
UT WOS:000356220800004
ER
PT J
AU Perriot, R
Uberuaga, BP
AF Perriot, Romain
Uberuaga, Blas P.
TI Structural vs. intrinsic carriers: contrasting effects of cation
chemistry and disorder on ionic conductivity in pyrochlores (vol 3, pg
11554, 2015)
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Correction
C1 [Perriot, Romain; Uberuaga, Blas P.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
RP Perriot, R (reprint author), Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
EM rperriot@lanl.gov
NR 1
TC 0
Z9 0
U1 2
U2 5
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 23
BP 12557
EP 12557
DI 10.1039/c5ta90115d
PG 1
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CJ8FX
UT WOS:000355736700053
ER
PT J
AU Wang, HY
Ding, YM
Lai, YB
Sun, ZW
Liu, Y
Jiang, B
Chen, M
Yao, J
Liu, F
Russell, TP
AF Wang, Hongyu
Ding, Yimin
Lai, Yanbang
Sun, Zhiwei
Liu, Yao
Jiang, Bin
Chen, Ming
Yao, Jian
Liu, Feng
Russell, Thomas P.
TI Ethynylene-linked benzo[1,2-b:4,5-b
']dithiophene-alt-diketopyrrolopyrrole alternating copolymer:
optoelectronic properties, film morphology and photovoltaic applications
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID POLYMER SOLAR-CELLS; INTRAMOLECULAR CHARGE-TRANSFER; POWER CONVERSION
EFFICIENCY; FIELD-EFFECT TRANSISTORS; OPEN-CIRCUIT VOLTAGE;
SMALL-MOLECULE; CONJUGATED POLYMERS; POLY(PHENYLENE ETHYNYLENE);
SIMULTANEOUS ENHANCEMENT; ORGANIC PHOTOVOLTAICS
AB An ethynylene-linked benzo[1,2-b: 4,5-b']dithiophene-alt-diketopyrrolopyrrole alternating copolymer, EDPP, was designed and synthesized to improve the open-circuit voltage of organic solar cells. The influence of the ethynylene on optoelectronic properties, energy levels, crystallinity, film morphology, and photovoltaic performance was investigated. Optical and electrochemical tests showed that introduction of ethynylene into the polymer backbone resulted in a larger bandgap, deeper HOMO energy level, and enhanced crystallinity due to the planar conformation and electron-withdrawing properties. Grazing incidence wide-angle X-ray scattering (GIWAXS) showed that the pure EDPP film preferentially adopted a face-on orientation with a pi-pi stacking distance of 3.65 angstrom. After thermal annealing the face-on and edge-on orientations coexisted and the overall degree of crystallinity increased. Blending with PC71BM did not disrupt the crystallinity of the EDPP. Resonant soft X-ray scattering (RSoXS) showed that the EDPP: PC71BM blend films contained large domains, a few hundred nanometers in size. As a result, EDPP: PC71BM photovoltaic devices exhibited a high open-circuit voltage of 0.88 V, but a low short-circuit current, with a moderate power conversion efficiency of 1.98%.
C1 [Wang, Hongyu; Ding, Yimin; Lai, Yanbang; Jiang, Bin; Chen, Ming; Yao, Jian] Shanghai Univ, Dept Chem, Shanghai 200444, Peoples R China.
[Wang, Hongyu] Fudan Univ, State Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China.
[Liu, Feng; Russell, Thomas P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mat Sci Div, Berkeley, CA 94720 USA.
[Sun, Zhiwei; Liu, Yao; Russell, Thomas P.] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA.
RP Wang, HY (reprint author), Shanghai Univ, Dept Chem, Shanghai 200444, Peoples R China.
EM wanghy@shu.edu.cn; iamfengliu@gmail.com; Russell@mail.pse.umass.edu
RI Foundry, Molecular/G-9968-2014; Liu, Feng/J-4361-2014; liu,
yao/H-2534-2016
OI Liu, Feng/0000-0002-5572-8512;
FU National Natural Science Foundation of China [61204020]; Polymer-Based
Materials for Harvesting Solar Energy (PHaSE), an Energy Frontier
Research Center - U.S. Department of Energy, Office of Basic Energy
Sciences [DE-SC0001087]; DOE, Office of Science, and Office of Basic
Energy Sciences
FX This work was financially supported by the National Natural Science
Foundation of China (Grant nos 61204020). FL and TPR were supported by
Polymer-Based Materials for Harvesting Solar Energy (PHaSE), an Energy
Frontier Research Center funded by the U.S. Department of Energy, Office
of Basic Energy Sciences under award number DE-SC0001087. Portions of
this research were carried out at beamline 7.3.3 and 11.0.1.2 at the
Advanced Light Source, and Molecular Foundry, Lawrence Berkeley National
Laboratory, which was supported by the DOE, Office of Science, and
Office of Basic Energy Sciences.
NR 60
TC 4
Z9 4
U1 5
U2 29
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 24
BP 12972
EP 12981
DI 10.1039/c5ta01004g
PG 10
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CK2EG
UT WOS:000356022800049
ER
PT J
AU Xu, GL
Qin, Y
Ren, Y
Cai, L
An, K
Amine, K
Chen, ZH
AF Xu, Gui-Liang
Qin, Yan
Ren, Yang
Cai, Lu
An, Ke
Amine, Khalil
Chen, Zonghai
TI The migration mechanism of transition metal ions in LiNi0.5Mn1.5O4
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID RECHARGEABLE LITHIUM BATTERIES; CATHODE MATERIALS; HIGH-CAPACITY;
VOLTAGE FADE; ELECTRONIC PROPERTIES; HIGH-PERFORMANCE; SPINEL CATHODES;
LAYERED OXIDES; SITE DISORDER; X-RAY
AB The migration of transition metal ions in the oxygen framework was recently proposed to be responsible for the continuous loss of average working potential of high energy density layered-layered composite cathodes for lithium-ion batteries. The potential migration pathway in a model material, LiNi0.5Mn1.5O4 spinel, was investigated using in situ high-energy X-ray diffraction and in situ neutron diffraction during the solid state synthesis process. It was found that the migration of transition metal ions among octahedral sites is possible by using tetrahedral vacancies as intermediate sites. It was also suggested that the number of electrons in 3d orbitals has a significant impact on their mobility in the hosting oxygen framework.
C1 [Xu, Gui-Liang; Qin, Yan; Amine, Khalil; Chen, Zonghai] Argonne Natl Lab, Chem Sci & Engn Div, Lemont, IL 60439 USA.
[Ren, Yang] Argonne Natl Lab, Xray Sci Div, Lemont, IL 60439 USA.
[Cai, Lu; An, Ke] Oak Ridge Natl Lab, Spallat Neutron Source, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA.
RP Chen, ZH (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 South Cass Ave, Lemont, IL 60439 USA.
EM zonghai.chen@anl.gov
RI An, Ke/G-5226-2011; XU, GUILIANG/F-3804-2017
OI An, Ke/0000-0002-6093-429X;
FU U.S. Department of Energy, Vehicle Technologies Office; U.S. Department
of Energy [DE-AC02-06CH11357]; U.S. Department of Energy, Office of
Science and Office of Basic Energy Sciences
FX Research at the Argonne National Laboratory was funded by the U.S.
Department of Energy, Vehicle Technologies Office. Argonne National
Laboratory is operated for the U.S. Department of Energy by UChicago
Argonne, LLC, under contract DE-AC02-06CH11357. The authors also
acknowledge the use of the Advanced Photon Source of the Argonne
National Laboratory and the Spallation Neutron Source of Oak Ridge
National Laboratory supported by the U.S. Department of Energy, Office
of Science and Office of Basic Energy Sciences.
NR 54
TC 5
Z9 5
U1 9
U2 51
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 24
BP 13031
EP 13038
DI 10.1039/c5ta02522b
PG 8
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CK2EG
UT WOS:000356022800055
ER
PT J
AU Martin, EJJ
Berube, N
Provencher, F
Cote, M
Silva, C
Doorn, SK
Grey, JK
AF Martin, Eric J. J.
Berube, Nicolas
Provencher, Francoise
Cote, Michel
Silva, Carlos
Doorn, Stephen K.
Grey, John K.
TI Resonance Raman spectroscopy and imaging of push-pull conjugated
polymer-fullerene blends
SO JOURNAL OF MATERIALS CHEMISTRY C
LA English
DT Article
ID LOW-BANDGAP POLYMER; HETEROJUNCTION SOLAR-CELLS; SOLVENT ADDITIVES;
ORGANIC PHOTOVOLTAICS; ELECTRONIC-PROPERTIES; OPTICAL-PROPERTIES; CHARGE
SEPARATION; RECOMBINATION; COPOLYMERS; EFFICIENCY
AB Blends of alternating 'push-pull' donor/acceptor (d/a) co-polymers with soluble fullerenes as active materials have shown promise for increasing power conversion efficiencies in organic photovoltaic (OPV) devices. We investigate morphology-dependent optical and electronic properties of poly[2,6-(4,4bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b; 3,4-b'] dithiophene)-alt-4,7(2,1,3-benzothiadiazole)] (PCPDTBT) blended with [6,6]-phenyl C-61 butyric acid methyl ester (PCBM) using electronic absorption and resonance Raman spectroscopies. Selective resonance excitation spanning the entire PCPDTBT absorption envelope (similar to 400-900 nm) was used to probe via Raman spectroscopy the degree of composition-and conformation-dependent charge transfer character along the polymer backbone. Raman intensities of characteristic PCPDTBT backbone donor/acceptor moieties vary with excitation wavelength. We perform density functional theory (DFT) calculations to assign Raman-active vibrational modes and correlate polymer backbone conformations to the degree of intra-chain donor/acceptor charge transfer character. We find the best agreement between experimental and simulated spectra for planarized PCPDTBT backbone consistent with strong charge transfer character along the backbone, which also gives rise to a new red-shifted absorption band appearing in PCBM blends. Resonance Raman and photocurrent imaging experiments were next used to spatially map morphology-dependent vibrational signatures of PCPDTBT donor/acceptor moieties within functioning solar cell devices. Solvent additives were applied using 1,8 octanedithiol (ODT) to modify PCPDTBT: PCBM morphologies and compared to as-cast blends. Raman and photocurrent
C1 [Martin, Eric J. J.; Grey, John K.] Univ New Mexico, Dept Chem & Chem Biol, Albuquerque, NM 87131 USA.
[Berube, Nicolas; Provencher, Francoise; Cote, Michel; Silva, Carlos] Univ Montreal, Dept Phys & Regroupement Quebecois Mat Pointe, Montreal, PQ H3C 3J7, Canada.
[Doorn, Stephen K.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM USA.
RP Grey, JK (reprint author), Univ New Mexico, Dept Chem & Chem Biol, Albuquerque, NM 87131 USA.
EM jkgrey@unm.edu
RI Silva, Carlos/B-5153-2010; Cote, Michel/H-3942-2012
OI Silva, Carlos/0000-0002-3969-5271; Cote, Michel/0000-0001-9046-9491
FU Center for Integrated Nanotechnologies; Office of Science User Facility
operated for the U.S. Department of Energy (DOE) Office of Science; U.S.
Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]; National Science Foundation [CHE-0955242]; NSERC;
Canada Research Chair in Organic Semiconductor Materials
FX This work was performed, in part, at the Center for Integrated
Nanotechnologies, an Office of Science User Facility operated for the
U.S. Department of Energy (DOE) Office of Science. 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. JKG
acknowledges support form the National Science Foundation (CHE-0955242).
CS acknowledges funding from NSERC and the Canada Research Chair in
Organic Semiconductor Materials.
NR 38
TC 5
Z9 6
U1 4
U2 23
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7526
EI 2050-7534
J9 J MATER CHEM C
JI J. Mater. Chem. C
PY 2015
VL 3
IS 23
BP 6058
EP 6066
DI 10.1039/c5tc00847f
PG 9
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA CK1TN
UT WOS:000355990400022
ER
PT J
AU Pham, T
Goldstein, AP
Lewicki, JP
Kucheyev, SO
Wang, C
Russell, TP
Worsley, MA
Woo, L
Mickelson, W
Zettl, A
AF Thang Pham
Goldstein, Anna P.
Lewicki, James P.
Kucheyev, Sergei O.
Wang, Cheng
Russell, Thomas P.
Worsley, Marcus A.
Woo, Leta
Mickelson, William
Zettl, Alex
TI Nanoscale structure and superhydrophobicity of sp(2)-bonded boron
nitride aerogels
SO NANOSCALE
LA English
DT Article
ID HIGH-SURFACE-AREA; X-RAY-SCATTERING; MECHANICAL-PROPERTIES; SENSING
INDENTATION; GRAPHENE; WATER; FILMS; WETTABILITY; MORPHOLOGY; FRAMEWORKS
AB Aerogels have much potential in both research and industrial applications due to their high surface area, low density, and fine pore size distribution. Here we report a thorough structural study of three-dimensional aerogels composed of highly crystalline sp(2)-bonded boron nitride (BN) layers synthesized by a carbothermic reduction process. The structure, crystallinity and bonding of the as-prepared BN aerogels are elucidated by X-ray diffraction, B-11 nuclear magnetic resonance, transmission electron microscopy, and resonant soft X-ray scattering. The macroscopic roughness of the aerogel's surface causes it to be superhydrophobic with a contact angle of similar to 155 degrees and exhibit high oil uptake capacity (up to 1500 wt%). The oil can be removed from the BN aerogel by oxidizing in air without damaging the crystalline porous structure of the aerogel or diminishing its oil absorption capacity.
C1 [Thang Pham; Goldstein, Anna P.; Mickelson, William; Zettl, Alex] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Thang Pham] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Thang Pham; Mickelson, William; Zettl, Alex] Univ Calif Berkeley, Ctr Integrated Nanomech Syst, Berkeley, CA 94720 USA.
[Thang Pham; Goldstein, Anna P.; Zettl, Alex] Univ Calif Berkeley, Kavli Energy NanoSci Inst, Berkeley, CA 94720 USA.
[Thang Pham; Goldstein, Anna P.; Zettl, Alex] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Goldstein, Anna P.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Lewicki, James P.; Kucheyev, Sergei O.; Worsley, Marcus A.; Woo, Leta] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
[Wang, Cheng] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Russell, Thomas P.] Univ Massachusetts, Dept Polymer Sci & Engn, Conte Polymer Res Ctr, Amherst, MA 01003 USA.
[Russell, Thomas P.; Zettl, Alex] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Zettl, A (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
EM azettl@berkeley.edu
RI Zettl, Alex/O-4925-2016; Wang, Cheng/A-9815-2014;
OI Zettl, Alex/0000-0001-6330-136X; Worsley, Marcus/0000-0002-8012-7727;
Goldstein, Anna/0000-0002-2710-8228
FU U.S. Department of Energy [DE-AC02-05CH11231]; UC Lab Fees Research
Program [12-LR-235323]; Lawrence Livermore National Laboratory of the
U.S. Department of Energy through LDRD [DE-AC52-07NA27344, 13-LW-099];
Air Force Office of Scientific Research [X10-8049-C]; Center of
Integrated Nanomechanical Systems under NSF [EEC-0832819]
FX This work was supported in part by the U.S. Department of Energy under
Contract # DE-AC02-05CH11231 which provided for TEM and X-Ray
characterization, including that performed at the National Center for
Electron Microscopy, and RSoXS; the UC Lab Fees Research Program under
award 12-LR-235323 which provided for graphene aerogel synthesis and BN
aerogel precursors; by Lawrence Livermore National Laboratory under the
auspices of the U.S. Department of Energy under Contract
DE-AC52-07NA27344, through LDRD award 13-LW-099 which provided for
mechanical and NMR measurements, and by the Air Force Office of
Scientific Research under Grant X10-8049-C which provided for SEM and
contact angle measurements. W. M. and A. Z. received support from the
Center of Integrated Nanomechanical Systems under NSF Grant EEC-0832819.
The authors thank Peter Ercius for assistance with collecting
high-resolution TEM images, Ye Tian for helping with contact angle
measurements, Dohyung Kim for assisting with XRD measurements, and
Peidong Yang for providing XRD access.
NR 43
TC 10
Z9 10
U1 17
U2 90
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 23
BP 10449
EP 10458
DI 10.1039/c5nr01672j
PG 10
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CK1SJ
UT WOS:000355987300018
PM 26007693
ER
PT J
AU Yang, L
Fu, Q
Wang, WH
Huang, J
Huang, JL
Zhang, JY
Xiang, B
AF Yang, Lei
Fu, Qi
Wang, Wenhui
Huang, Jian
Huang, Jianliu
Zhang, Jingyu
Xiang, Bin
TI Large-area synthesis of monolayered MoS2(1-x)Se2x with a tunable band
gap and its enhanced electrochemical catalytic activity
SO NANOSCALE
LA English
DT Article
ID TRANSITION-METAL DICHALCOGENIDES; EFFICIENT HYDROGEN EVOLUTION; MOS2
ULTRATHIN NANOSHEETS; LAYER MOS2; ELECTRONIC-PROPERTIES; 2-DIMENSIONAL
MOS2; EDGE SITES; PHOTOLUMINESCENCE; GROWTH; TRANSISTORS
AB "Band gap engineering" in two-dimensional (2D) materials plays an important role in tailoring their physical and chemical properties. The tuning of the band gap is typically achieved by controlling the composition of the semiconductor alloys. However, large-area preparation of 2D alloys remains a major challenge. Here, we report the large-area synthesis of high-quality monolayered MoS2(1-x)Se2x with a size coverage of hundreds of microns using a chemical vapor deposition method. The photoluminescence (PL) spectroscopy results confirm the tunable band gap in MoS2(1-x)Se2x, which is modulated by varying the Se content. Atomic-scale analysis was performed and the chemical composition was characterized using high-resolution scanning transmission electron microscopy and X-ray photoemission spectroscopy. With the introduction of Se into monolayered MoS2, it leads to enhanced catalytic activity in an electrochemical reaction for hydrogen generation, compared to monolayered MoS2 and MoSe2. It is promising as a potential alternative to expensive noble metals.
C1 [Yang, Lei; Fu, Qi; Wang, Wenhui; Huang, Jian; Xiang, Bin] Univ Sci & Technol China, CAS Key Lab Mat Energy Convers, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China.
[Yang, Lei; Xiang, Bin] Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China.
[Huang, Jianliu] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China.
[Zhang, Jingyu] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Xiang, B (reprint author), Univ Sci & Technol China, CAS Key Lab Mat Energy Convers, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China.
EM binxiang@ustc.edu.cn
RI Xiang, Bin/C-9192-2012; Foundry, Molecular/G-9968-2014
FU National Natural Science Foundation of China [21373196, 11434009];
National Program for Thousand Young Talents of China; Fundamental
Research Funds for the Central Universities [WK2340000050, WK2060140014]
FX This work was supported by the National Natural Science Foundation of
China (21373196, 11434009), the National Program for Thousand Young
Talents of China and the Fundamental Research Funds for the Central
Universities (WK2340000050, WK2060140014).
NR 44
TC 13
Z9 13
U1 14
U2 96
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 23
BP 10490
EP 10497
DI 10.1039/c5nr02652k
PG 8
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CK1SJ
UT WOS:000355987300023
PM 26006089
ER
PT J
AU Li, GQ
Varga, T
Yan, PF
Wang, ZG
Wang, CM
Chambers, SA
Du, YG
AF Li, Guoqiang
Varga, Tamas
Yan, Pengfei
Wang, Zhiguo
Wang, Chongmin
Chambers, Scott A.
Du, Yingge
TI Crystallographic dependence of photocatalytic activity of WO3 thin films
prepared by molecular beam epitaxy
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID OXIDIZATION ACTIVITY; TUNGSTEN-OXIDE; SURFACE; HYDROGEN; SIZE;
PSEUDOPOTENTIALS; MICROCRYSTALS; NANOCRYSTALS; DEGRADATION; PERFORMANCE
AB We investigated the impact of crystallographic orientation on the photocatalytic activity of single crystalline WO3 thin films prepared by molecular beam epitaxy on the photodegradation of rhodamine B (RhB). A clear effect is observed, with (111) being the most reactive surface, followed by (110) and (001). Photoreactivity is directly correlated with the surface free energy determined by density functional theory calculations. The RhB photodegradation mechanism is found to involve hydroxyl radicals in solution formed from photo-generated holes and differs from previous studies performed on nanoparticles and composites.
C1 [Li, Guoqiang; Chambers, Scott A.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
[Li, Guoqiang] Henan Univ, Sch Phys & Elect, Key Lab Photovolta Mat Henan Prov, Kaifeng 475004, Peoples R China.
[Varga, Tamas; Yan, Pengfei; Wang, Chongmin; Du, Yingge] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Wang, Zhiguo] Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China.
RP Wang, ZG (reprint author), Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China.
EM zgwang@uestc.edu.cn; yingge.du@pnnl.gov
RI LI, Guoqiang/G-2745-2011; yan, pengfei/E-4784-2016; Wang,
Zhiguo/B-7132-2009
OI LI, Guoqiang/0000-0002-2091-8105; yan, pengfei/0000-0001-6387-7502;
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering [10122]; EMSL's Intramural Research
and Capability Development Program; Henan University, China; National
Natural Science Foundation of China [21103041]; Office of Biological and
Environmental Research
FX A portion of this work was supported by the U.S. Department of Energy,
Office of Basic Energy Sciences, Division of Materials Sciences and
Engineering under Award 10122. YD acknowledges support by EMSL's
Intramural Research and Capability Development Program. GL acknowledges
support by Henan University, China and the National Natural Science
Foundation of China (21103041). This work was performed at the W. R.
Wiley Environmental Molecular Sciences Laboratory, a DOE User Facility
sponsored by the Office of Biological and Environmental Research. The
authors thank Z. Dohnalek and T. Kaspar for insightful discussions and
help in proofreading the final manuscript.
NR 44
TC 9
Z9 9
U1 3
U2 30
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 23
BP 15119
EP 15123
DI 10.1039/c5cp01344e
PG 5
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CJ6VK
UT WOS:000355632900007
PM 25989882
ER
PT J
AU Steirer, KX
Garris, RL
Li, JV
Dzara, MJ
Ndione, PF
Ramanathan, K
Repins, I
Teeter, G
Perkins, CL
AF Steirer, K. Xerxes
Garris, Rebekah L.
Li, Jian V.
Dzara, Michael J.
Ndione, Paul F.
Ramanathan, Kannan
Repins, Ingrid
Teeter, Glenn
Perkins, Craig L.
TI Co-solvent enhanced zinc oxysulfide buffer layers in Kesterite copper
zinc tin selenide solar cells
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID CHEMICAL BATH DEPOSITION; ELECTRONIC-PROPERTIES; BAND-OFFSET;
THIN-FILMS; EFFICIENCY; PERFORMANCE
AB A co-solvent, dimethylsulfoxide (DMSO), is added to the aqueous chemical "bath'' deposition (CBD) process used to grow ZnOS buffer layers for thin film Cu2ZnSnSe4 (CZTSe) solar cells. Device performance improves markedly as fill factors increase from 0.17 to 0.51 upon the co-solvent addition. X-ray photoelectron spectroscopy (XPS) analyses are presented for quasi-in situ CZTSe/CBD-ZnOS interfaces prepared under an inert atmosphere and yield valence band offsets equal to -1.0 eV for both ZnOS preparations. When combined with optical band gap data, conduction band offsets exceed 1 eV for the water and the water/DMSO solutions. XPS measurements show increased downward band bending in the CZTSe absorber layer when the ZnOS buffer layer is deposited from water only. Admittance spectroscopy data shows that the ZnOS deposited from water increases the built-in potential (V-bi) yet these solar cells perform poorly compared to those made with DMSO added. The band energy offsets imply an alternate form of transport through this junction. Possible mechanisms are discussed, which circumvent the otherwise large conduction band spike between CZTSe and ZnOS, and improve functionality with the low-band gap absorber, CZTSe (E-g = 0.96 eV).
C1 [Steirer, K. Xerxes; Garris, Rebekah L.; Li, Jian V.; Ndione, Paul F.; Ramanathan, Kannan; Repins, Ingrid; Teeter, Glenn; Perkins, Craig L.] Natl Renewable Energy Lab, Chem & Mat Sci, Golden, CO 80401 USA.
[Dzara, Michael J.] Rochester Inst Technol, Dept Chem Engn, Rochester, NY 14623 USA.
RP Steirer, KX (reprint author), Natl Renewable Energy Lab, Chem & Mat Sci, 1617 Cole Blvd, Golden, CO 80401 USA.
EM Kenneth.Steirer@NREL.gov
RI Ndione, Paul/O-6152-2015; Li, Jian/B-1627-2016
OI Ndione, Paul/0000-0003-4444-2938;
FU Laboratory Directed Research and Development (LDRD) Program at the
National Renewable Energy Laboratory; U.S. Department of Energy, Office
of Science, Office of Workforce Development for Teachers and Scientists
(WDTS) under the Science Undergraduate Laboratory Internship (SULI)
program; U.S. Department of Energy Office of Energy Efficiency and
Renewable Energy [DE-AC36-08-GO28308]
FX This work was supported by the Laboratory Directed Research and
Development (LDRD) Program at the National Renewable Energy Laboratory.
MJD was supported by the U.S. Department of Energy, Office of Science,
Office of Workforce Development for Teachers and Scientists (WDTS) under
the Science Undergraduate Laboratory Internship (SULI) program. NREL is
a national laboratory of the U.S. Department of Energy Office of Energy
Efficiency and Renewable Energy (Contract No. DE-AC36-08-GO28308)
operated by the Alliance for Sustainable Energy, LLC.
NR 44
TC 4
Z9 4
U1 8
U2 38
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 23
BP 15355
EP 15364
DI 10.1039/c5cp01607j
PG 10
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CJ6VK
UT WOS:000355632900033
PM 26000570
ER
PT J
AU Dholabhai, PP
Aguiar, JA
Wu, LJ
Holesinger, TG
Aoki, T
Castro, RHR
Uberuaga, BP
AF Dholabhai, Pratik P.
Aguiar, Jeffery A.
Wu, Longjia
Holesinger, Terry G.
Aoki, Toshihiro
Castro, Ricardo H. R.
Uberuaga, Blas P.
TI Structure and segregation of dopant-defect complexes at grain boundaries
in nanocrystalline doped ceria
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID MOLECULAR-DYNAMICS; ELECTRICAL-CONDUCTIVITY; IONIC-CONDUCTIVITY;
SPACE-CHARGE; OXIDE; OXYGEN; CERAMICS; CEO2; ACTIVATION; ELECTROLYTE
AB Grain boundaries (GBs) dictate vital properties of nanocrystalline doped ceria. Thus, to understand and predict its properties, knowledge of the interaction between dopant-defect complexes and GBs is crucial. Here, we report atomistic simulations, corroborated with first principles calculations, elucidating the fundamental dopant-defect interactions at model GBs in gadolinium-doped and manganese-doped ceria. Gadolinium and manganese are aliovalent dopants, accommodated in ceria via a dopant-defect complex. While the behavior of isolated dopants and vacancies is expected to depend on the local atomic structure at GBs, the added structural complexity associated with dopant-defect complexes is found to have key implications on GB segregation. Compared to the grain interior, energies of different dopant-defect arrangements vary significantly at the GBs. As opposed to bulk, the stability of oxygen vacancy is found to be sensitive to the dopant arrangement at GBs. Manganese exhibits a stronger propensity for segregation to GBs than gadolinium, revealing that accommodation of dopant-defect clusters depends on the nature of dopants. Segregation strength is found to depend on the GB character, a result qualitatively supported by our experimental observations based on scanning transmission electron microscopy. The present results indicate that segregation energies, availability of favorable sites, and overall stronger binding of dopant-defect complexes would influence ionic conductivity across GBs in nanocrystalline doped ceria. Our comprehensive investigation emphasizes the critical role of dopant-defect interactions at GBs in governing functional properties in fluorite-structured ionic conductors.
C1 [Dholabhai, Pratik P.; Uberuaga, Blas P.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
[Aguiar, Jeffery A.] Natl Renewable Energy Lab, Microscopy & Imaging Grp, Golden, CO 80401 USA.
[Wu, Longjia; Castro, Ricardo H. R.] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
[Holesinger, Terry G.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
[Aoki, Toshihiro] Arizona State Univ, LeRoy Eyring Ctr Solid State Sci, Tempe, AZ 85287 USA.
RP Dholabhai, PP (reprint author), Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
EM pdholabhai@lanl.gov
RI Aoki, Toshihiro/I-4852-2015;
OI Aguiar, Jeffery/0000-0001-6101-4762
FU UC Lab Fees Research Program [12-LF-239032]; U.S. Department of Energy
(DOE), Office of Science, Basic Energy Sciences, Materials Sciences and
Engineering Division; U.S. DOE [DE-AC52-06NA25396]; U.S. DOE, Office of
Science, Basic Energy Sciences, Early Career Program Award [ER46795]
FX This work was supported by UC Lab Fees Research Program 12-LF-239032.
BPU acknowledges support by the U.S. Department of Energy (DOE), Office
of Science, Basic Energy Sciences, Materials Sciences and Engineering
Division. 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 U.S. DOE under
contract DE-AC52-06NA25396. JAA acknowledges the use of facilities at
LeRoy Center for Solid State Science, Arizona State University. RC
acknowledges U.S. DOE, Office of Science, Basic Energy Sciences, Early
Career Program Award ER46795.
NR 68
TC 9
Z9 9
U1 4
U2 57
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 23
BP 15375
EP 15385
DI 10.1039/c5cp02200b
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CJ6VK
UT WOS:000355632900035
PM 26000664
ER
PT J
AU Yue, YF
Mayes, RT
Gill, G
Kuo, LJ
Wood, J
Binder, A
Brown, S
Dai, S
AF Yue, Yanfeng
Mayes, Richard T.
Gill, Gary
Kuo, Li-Jung
Wood, Jordana
Binder, Andrew
Brown, Suree
Dai, Sheng
TI Macroporous monoliths for trace metal extraction from seawater
SO RSC ADVANCES
LA English
DT Article
ID TRANSFER RADICAL POLYMERIZATION; URANIUM EXTRACTION; SEA-WATER; FIBER
ADSORBENTS; AMIDOXIME-FIBER; URANYL-ION; RECOVERY; ADSORPTION;
SEPARATION; PEPTIDES
AB The viability of seawater-based uranium recovery depends on the uranium adsorption rate and capacity, since the concentration of uranium in the oceans is relatively low (3.3 mu g L-1). An important consideration for a fast adsorption is to maximize the adsorption properties of adsorbents such as surface areas and pore structures, which can greatly improve the kinetics of uranium extraction and the adsorption capacity simultaneously. Following this consideration, macroporous monolith adsorbents were prepared from the copolymerization of acrylonitrile (AN) and N, N'-methylene-bis(acrylamide) (MBAAm) based on a cryogel method using both hydrophobic and hydrophilic monomers. The monolithic sorbents were tested with simulated seawater containing a high uranyl concentration (similar to 6 ppm) and the uranium adsorption results showed that the adsorption capacities are strongly influenced by the ratio of monomer to the crosslinker, i.e., the density of the amidoxime groups. The preliminary seawater testing indicates the high salinity content of seawater does not hinder the adsorption of uranium.
C1 [Yue, Yanfeng; Mayes, Richard T.; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Gill, Gary; Kuo, Li-Jung; Wood, Jordana] Pacific NW Natl Lab, Marine Sci Lab, Sequim, WA 98382 USA.
[Binder, Andrew; Brown, Suree; Dai, Sheng] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
RP Mayes, RT (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM mayesrt@ornl.gov
RI Dai, Sheng/K-8411-2015; Mayes, Richard/G-1499-2016
OI Dai, Sheng/0000-0002-8046-3931; Mayes, Richard/0000-0002-7457-3261
FU U.S. DOE Office of Nuclear Energy [DEAC05-00OR22725, DE-AC05-76RL01830];
ORNL
FX This research was conducted at Oak Ridge National Laboratory (ORNL) and
supported by the U.S. DOE Office of Nuclear Energy, under Contract no.
DEAC05-00OR22725 with ORNL, managed by UT Battelle LLC. Seawater
screening was performed at the Marine Sciences Laboratory in Sequim, WA,
a division of Pacific Northwest National Laboratory, supported by the
U.S. DOE Office of Nuclear Energy, under Contract no. DE-AC05-76RL01830.
NR 47
TC 12
Z9 12
U1 6
U2 36
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2046-2069
J9 RSC ADV
JI RSC Adv.
PY 2015
VL 5
IS 62
BP 50005
EP 50010
DI 10.1039/c5ra02131f
PG 6
WC Chemistry, Multidisciplinary
SC Chemistry
GA CK1SP
UT WOS:000355987900025
ER
PT S
AU Tramm, JR
Siegel, AR
Forget, B
Josey, C
AF Tramm, John R.
Siegel, Andrew R.
Forget, Benoit
Josey, Colin
BE Markidis, S
Laure, E
TI Performance Analysis of a Reduced Data Movement Algorithm for Neutron
Cross Section Data in Monte Carlo Simulations
SO SOLVING SOFTWARE CHALLENGES FOR EXASCALE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 2nd International Conference on Exascale Applications and Software
(EASC)
CY APR 02-03, 2014
CL Stockholm, SWEDEN
SP Cray Inc, Mellanox Technologies
DE Monte carlo; Multi-core; Neutron transport; Reactor simulation;
Multipole; Cross section
AB Current Monte Carlo neutron transport applications use continuous energy cross section data to provide the statistical foundation for particle trajectories. This "classical" algorithm requires storage and random access of very large data structures. Recently, Forget et al. [1] reported on a fundamentally new approach, based on multipole expansions, that distills cross section data down to a more abstract mathematical format. Their formulation greatly reduces memory storage and improves data locality at the cost of also increasing floating point computation. In the present study, we abstract the multipole representation into a "proxy application", which we then use to determine the hardware performance parameters of the algorithm relative to the classical continuous energy algorithm. This study is done to determine the viability of both algorithms on current and next-generation high performance computing platforms.
C1 [Tramm, John R.; Siegel, Andrew R.] Argonne Natl Lab, Ctr Exascale Simulat Adv Reactors, Lemont, IL 60439 USA.
[Forget, Benoit; Josey, Colin] MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA.
RP Tramm, JR (reprint author), Argonne Natl Lab, Ctr Exascale Simulat Adv Reactors, Lemont, IL 60439 USA.
EM jtramm@mcs.anl.gov
NR 19
TC 0
Z9 0
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-319-15975-1; 978-3-319-15976-8
J9 LECT NOTES COMPUT SC
PY 2015
VL 8759
BP 39
EP 56
DI 10.1007/978-3-319-15976-8_3
PG 18
WC Computer Science, Software Engineering; Computer Science, Theory &
Methods
SC Computer Science
GA BC8JT
UT WOS:000355749700003
ER
PT S
AU Gong, J
Markidis, S
Schliephake, M
Laure, E
Henningson, D
Schlatter, P
Peplinski, A
Hart, A
Doleschal, J
Henty, D
Fischer, P
AF Gong, Jing
Markidis, Stefano
Schliephake, Michael
Laure, Erwin
Henningson, Dan
Schlatter, Philipp
Peplinski, Adam
Hart, Alistair
Doleschal, Jens
Henty, David
Fischer, Paul
BE Markidis, S
Laure, E
TI Nek5000 with OpenACC
SO SOLVING SOFTWARE CHALLENGES FOR EXASCALE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 2nd International Conference on Exascale Applications and Software
(EASC)
CY APR 02-03, 2014
CL Stockholm, SWEDEN
SP Cray Inc, Mellanox Technologies
DE Nek5000; OpenACC; GPU programming; Spectral element method
AB Nek5000 is a computational fluid dynamics code based on the spectral element method used for the simulation of incompressible flows. We follow up on an earlier study which ported the simplified version of Nek5000 to a GPU-accelerated system by presenting the hybrid CPU/GPU implementation of the full Nek5000 code using OpenACC. The matrix-matrix multiplication, the Nek5000 gather-scatter operator and a preconditioned Conjugate Gradient solver have implemented using OpenACC for multi-GPU systems. We report an speed-up of 1.3 on single node of a Cray XK6 when using OpenACC directives in Nek5000. On 512 nodes of the Titan supercomputer, the speed-up can be approached to 1.4. A performance analysis of the Nek5000 code using Score-P and Vampir performance monitoring tools shows that overlapping of GPU kernels with host-accelerator memory transfers would considerably increase the performance of the OpenACC version of Nek5000 code.
C1 [Gong, Jing; Markidis, Stefano; Schliephake, Michael; Laure, Erwin] KTH Royal Inst Technol, PDC Ctr High Performance Comp, Stockholm, Sweden.
[Henningson, Dan; Schlatter, Philipp; Peplinski, Adam] KTH Royal Inst Technol, Dept Mech, Stockholm, Sweden.
[Gong, Jing; Markidis, Stefano; Schliephake, Michael; Laure, Erwin; Henningson, Dan; Schlatter, Philipp; Peplinski, Adam] Swedish E Sci Ctr SeRC, S-10044 Stockholm, Sweden.
[Doleschal, Jens] Tech Univ Dresden, ZIH, D-01062 Dresden, Germany.
[Henty, David] Univ Edinburgh, Edinburgh Parallel Comp Ctr, Edinburgh, Midlothian, Scotland.
[Fischer, Paul] Argonne Natl Lab, Lemont, IL USA.
RP Gong, J (reprint author), KTH Royal Inst Technol, PDC Ctr High Performance Comp, Stockholm, Sweden.
EM gongjing@pdc.kth.se; markidis@pdc.kth.se; michs@pdc.kth.se;
erwinl@pdc.kth.se; henningson@mech.kth.se; pschlatt@mech.kth.se;
adam@mech.kth.se
NR 7
TC 1
Z9 1
U1 1
U2 4
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-319-15975-1; 978-3-319-15976-8
J9 LECT NOTES COMPUT SC
PY 2015
VL 8759
BP 57
EP 68
DI 10.1007/978-3-319-15976-8_4
PG 12
WC Computer Science, Software Engineering; Computer Science, Theory &
Methods
SC Computer Science
GA BC8JT
UT WOS:000355749700004
ER
PT S
AU Hammouda, A
Siegel, A
Siegel, S
AF Hammouda, Adam
Siegel, Andrew
Siegel, Stephen
BE Markidis, S
Laure, E
TI Overcoming Asynchrony: An Analysis of the Effects of Asynchronous Noise
on Nearest Neighbor Synchronizations
SO SOLVING SOFTWARE CHALLENGES FOR EXASCALE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 2nd International Conference on Exascale Applications and Software
(EASC)
CY APR 02-03, 2014
CL Stockholm, SWEDEN
SP Cray Inc, Mellanox Technologies
DE Performance analysis; Exascale; Noise; Stencil methods; Optimization;
Fault tolerance; Resilience
ID COLLECTIVES; IMPACT
AB A simple model of noise with an adjustable level of asynchrony is presented. The model is used to generate synthetic noise traces in the presence of a representative bulk synchronous, nearest neighbor time stepping algorithm. The resulting performance of the algorithm is measured and compared to the performance of the algorithm in the presence of Gaussian distributed noise. The results empirically illustrate that asynchrony is a dominant mechanism by which many types of computational noise degrade the performance of bulk-synchronous algorithms, whether or not their macroscopic noise distributions are constant or random.
C1 [Hammouda, Adam; Siegel, Andrew] Argonne Natl Lab, Div Math & Comp Sci, Lemont, IL 60439 USA.
[Siegel, Stephen] Univ Delaware, Verified Software Lab, Newark, DE 19716 USA.
RP Hammouda, A (reprint author), Argonne Natl Lab, Div Math & Comp Sci, Lemont, IL 60439 USA.
EM ahammouda@cs.uchicago.edu; siegela@mcs.anl.gov; siegel@udel.edu
NR 12
TC 0
Z9 0
U1 1
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-319-15975-1; 978-3-319-15976-8
J9 LECT NOTES COMPUT SC
PY 2015
VL 8759
BP 100
EP 109
DI 10.1007/978-3-319-15976-8_7
PG 10
WC Computer Science, Software Engineering; Computer Science, Theory &
Methods
SC Computer Science
GA BC8JT
UT WOS:000355749700007
ER
PT S
AU Hilbrich, T
Protze, J
Wagner, M
Muller, MS
Schulz, M
de Supinski, BR
Nagel, WE
AF Hilbrich, Tobias
Protze, Joachim
Wagner, Michael
Mueller, Matthias S.
Schulz, Martin
de Supinski, Bronis R.
Nagel, Wolfgang E.
BE Markidis, S
Laure, E
TI Memory Usage Optimizations for Online Event Analysis
SO SOLVING SOFTWARE CHALLENGES FOR EXASCALE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 2nd International Conference on Exascale Applications and Software
(EASC)
CY APR 02-03, 2014
CL Stockholm, SWEDEN
SP Cray Inc, Mellanox Technologies
ID MPI
AB Tools are essential for application developers and system support personnel during tasks such as performance optimization and debugging of massively parallel applications. An important class are event-based tools that analyze relevant events during the runtime of an application, e.g., function invocations or communication operations. We develop a parallel tools infrastructure that supports both the observation and analysis of application events at runtime. Some analysese. e.g., deadlock detection algorithms-require complex processing and apply to many types of frequently occurring events. For situations where the rate at which an application generates new events exceeds the processing rate of the analysis, we experience tool instability or even failures, e.g., memory exhaustion. Tool infrastructures must provide means to avoid or mitigate such situations. This paper explores two such techniques: first, a heuristic that selects events to receive and process next; second, a pause mechanism that temporarily suspends the execution of an application. An application study with applications from the SPEC MPI2007 benchmark suite and the NAS parallel benchmarks evaluates these techniques at up to 16,384 processes and illustrates how they avoid memory exhaustion problems that limited the applicability of a runtime correctness tool in the past.
C1 [Hilbrich, Tobias; Wagner, Michael; Nagel, Wolfgang E.] Tech Univ Dresden, D-01062 Dresden, Germany.
[Protze, Joachim; Mueller, Matthias S.] Rhein Westfal TH Aachen, D-52056 Aachen, Germany.
[Protze, Joachim; Mueller, Matthias S.] JARA High Performance Comp, D-52062 Aachen, Germany.
[Schulz, Martin; de Supinski, Bronis R.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Schulz, M (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM tobias.hilbrich@tu-dresden.de; protze@rz.rwth-aachen.de;
michael.wagner2@tu-dresden.de; mueller@rz.rwth-aachen.de;
schulzm@llnl.gov; bronis@llnl.gov; wolfgang.nagel@tu-dresden.de
OI Wagner, Michael/0000-0002-5767-1716
NR 22
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-319-15975-1; 978-3-319-15976-8
J9 LECT NOTES COMPUT SC
PY 2015
VL 8759
BP 110
EP 121
DI 10.1007/978-3-319-15976-8_8
PG 12
WC Computer Science, Software Engineering; Computer Science, Theory &
Methods
SC Computer Science
GA BC8JT
UT WOS:000355749700008
ER
PT J
AU Feng, C
Sun, HH
Li, SQ
Camarillo, MK
Stringfellow, WT
Liang, YY
AF Feng, Chao
Sun, Henghu
Li, Suqin
Camarillo, Mary Kay
Stringfellow, William T.
Liang, Yangyang
TI Treatment of oil-water emulsion from the machinery industry by Fenton's
reagent
SO WATER SCIENCE AND TECHNOLOGY
LA English
DT Article
DE Fenton's reagent; H2O2 dosage; oil-water emulsion; orthogonal test
ID WASTE-WATER; METALWORKING FLUIDS; HYDROGEN-PEROXIDE; NONIONIC
SURFACTANTS; OPERATING-CONDITIONS; ORGANIC-COMPOUNDS; METAL-WORKING;
OXIDATION; ELECTROFLOTATION; OPTIMIZATION
AB An oil-water emulsion from the machinery industry was treated using Fenton's reagent. The objective was to reduce the high chemical oxygen demand (COD) of this waste stream so that it would meet the COD effluent limit of Chinese Standard JS-7740-95. The optimal [H2O2]/[Fe2+] ratio for COD removal was 3. An orthogonal experimental design was developed based on the optimal [H2O2]/[Fe2+] ratio to evaluate the significance of four parameters relevant to the treatment process, namely, H2O2 dosage, initial pH, oxidation time and coagulation pH. The influence of the four parameters on COD removal efficiency decreased as follows: H2O2 dosage > oxidation time > coagulation pH > initial pH. The COD removal efficiency was further investigated based on the most important single-factor parameter, which was H2O2 dosage, as discovered in the orthogonal test. A well-fitted empirical correlation was obtained from the single-factor analysis and up to 98% COD removal was attained using 50 mM H2O2. Using the doses and conditions identified in this study, the treated oil-water emulsion can be discharged according to Chinese Standard JS-7740-95.
C1 [Feng, Chao; Sun, Henghu; Camarillo, Mary Kay; Stringfellow, William T.] Univ Pacific, Sch Engn & Comp Sci, Pacific Resources Res Ctr, Stockton, CA 95211 USA.
[Sun, Henghu] Tsinghua Univ Co Ltd, Architectural Design & Res Inst, Green Construct Mat & Circulat Econ Ctr, Beijing 100084, Peoples R China.
[Stringfellow, William T.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Sun, HH (reprint author), Univ Pacific, Sch Engn & Comp Sci, Pacific Resources Res Ctr, 3601 Pacific Ave, Stockton, CA 95211 USA.
EM hsun@pacific.edu
RI Stringfellow, William/O-4389-2015
OI Stringfellow, William/0000-0003-3189-5604
FU School of Engineering and Computer Science (SOECS); Pacific Resources
Research Center (PRRC) at the University of the Pacific
FX The first author is grateful to the School of Engineering and Computer
Science (SOECS) and Pacific Resources Research Center (PRRC) at the
University of the Pacific for providing financial support. The authors
gratefully acknowledge the University of Science and Technology Beijing
for providing experimental facilities.
NR 43
TC 1
Z9 1
U1 2
U2 13
PU IWA PUBLISHING
PI LONDON
PA ALLIANCE HOUSE, 12 CAXTON ST, LONDON SW1H0QS, ENGLAND
SN 0273-1223
EI 1996-9732
J9 WATER SCI TECHNOL
JI Water Sci. Technol.
PY 2015
VL 71
IS 12
BP 1884
EP 1892
DI 10.2166/wst.2015.145
PG 9
WC Engineering, Environmental; Environmental Sciences; Water Resources
SC Engineering; Environmental Sciences & Ecology; Water Resources
GA CK5BP
UT WOS:000356237400018
PM 26067510
ER
PT J
AU Lee, I
Evans, BR
Foston, M
Ragauskas, AJ
AF Lee, Ida
Evans, Barbara R.
Foston, Marcus
Ragauskas, Arthur J.
TI Silicon cantilever functionalization for cellulose-specific chemical
force imaging of switchgrass
SO ANALYTICAL METHODS
LA English
DT Article
ID MICROSCOPY; FIBERS
AB A method for direct functionalization of silicon and silicon nitride cantilevers with bifunctional silanes was tested with model surfaces to determine adhesive forces for different hydrogen-bonding chemistries. Application for biomass surface characterization was tested by mapping switchgrass and isolated switchgrass cellulose in topographic and force-volume mode using a cellulose-specific cantilever.
C1 [Lee, Ida] Univ Tennessee, Dept Comp & Elect Engn, Knoxville, TN USA.
[Evans, Barbara R.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Foston, Marcus; Ragauskas, Arthur J.] Georgia Inst Technol, Inst Paper Sci & Technol, Atlanta, GA 30332 USA.
RP Evans, BR (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM evansb@ornl.gov
OI Ragauskas, Arthur/0000-0002-3536-554X
FU U.S. Department of Energy [DE-AC05-00OR22725]; Genomic Science Program,
Office of Biological and Environmental Research, U.S. Department of
Energy, under SFA Biofuels [FWP ERKP752]
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, world-wide license to publish or
reproduce the published form of this manuscript, or allow others to do
so, for United States Government purposes. The Department of Energy will
provide public access to these results of federally sponsored research
in accordance with the DOE Public Access Plan
(http://energy.gov/downloads/doe-public-access-plan). This work was
supported by the Genomic Science Program, Office of Biological and
Environmental Research, U.S. Department of Energy, under SFA Biofuels
FWP ERKP752 (P. I. Brian Davison).
NR 14
TC 0
Z9 0
U1 1
U2 7
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1759-9660
EI 1759-9679
J9 ANAL METHODS-UK
JI Anal. Methods
PY 2015
VL 7
IS 11
BP 4541
EP 4545
DI 10.1039/c5ay00455a
PG 5
WC Chemistry, Analytical; Food Science & Technology; Spectroscopy
SC Chemistry; Food Science & Technology; Spectroscopy
GA CJ5US
UT WOS:000355557500016
ER
PT J
AU Lee, WL
Gu, Y
Liou, KN
Leung, LR
Hsu, HH
AF Lee, W. -L.
Gu, Y.
Liou, K. N.
Leung, L. R.
Hsu, H. -H.
TI A global model simulation for 3-D radiative transfer impact on surface
hydrology over the Sierra Nevada and Rocky Mountains
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID WESTERN UNITED-STATES; REGIONAL CLIMATE SIMULATION; SOLAR-RADIATION;
PARAMETERIZATION; HYDROCLIMATE; ENSO; WRF
AB We investigate 3-D mountain effects on solar flux distributions and their impact on surface hydrology over the western United States, specifically the Rocky Mountains and the Sierra Nevada, using the global CCSM4 (Community Climate System Model version 4; Community Atmosphere Model/Community Land Model - CAM4/CLM4) with a 0.23 degrees x 0.31 degrees resolution for simulations over 6 years. In a 3-D radiative transfer parameterization, we have updated surface topography data from a resolution of 1 km to 90m to improve parameterization accuracy. In addition, we have also modified the upward-flux deviation (3-D-PP (plane-parallel)) adjustment to ensure that the energy balance at the surface is conserved in global climate simulations based on 3-D radiation parameterization. We show that deviations in the net surface fluxes are not only affected by 3-D mountains but also influenced by feedbacks of cloud and snow in association with the long-term simulations. Deviations in sensible heat and surface temperature generally follow the patterns of net surface solar flux. The monthly snow water equivalent (SWE) deviations show an increase in lower elevations due to reduced snowmelt, leading to a reduction in cumulative runoff. Over higher-elevation areas, negative SWE deviations are found because of increased solar radiation available at the surface. Simulated precipitation increases for lower elevations, while it decreases for higher elevations, with a minimum in April. Liquid runoff significantly decreases at higher elevations after April due to reduced SWE and precipitation.
C1 [Lee, W. -L.; Hsu, H. -H.] Acad Sinica, Res Ctr Environm Changes, Taipei 115, Taiwan.
[Gu, Y.; Liou, K. N.] Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA 90095 USA.
[Leung, L. R.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Gu, Y (reprint author), Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA 90095 USA.
EM gu@atmos.ucla.edu
FU Ministry of Science and Technology of Taiwan
[NSC-100-2119-M-001-029-MY5, NSC-102-2111-M-001-009]; Office of Science
of the US Department of Energy as part of the Earth System Modeling
program through DOE [DESC0006742]; DOE by Battelle Memorial Institute
[DE-AC05-76RLO1830]
FX This research was supported by the Ministry of Science and Technology of
Taiwan under contracts NSC-100-2119-M-001-029-MY5 and
NSC-102-2111-M-001-009 and by the Office of Science of the US Department
of Energy as part of the Earth System Modeling program through DOE Grant
DESC0006742 to UCLA and separate funding to PNNL. PNNL is operated for
DOE by Battelle Memorial Institute under contract DE-AC05-76RLO1830.
NR 31
TC 2
Z9 2
U1 1
U2 7
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2015
VL 15
IS 10
BP 5405
EP 5413
DI 10.5194/acp-15-5405-2015
PG 9
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CJ2BM
UT WOS:000355289200005
ER
PT J
AU Kumar, R
Barth, MC
Nair, VS
Pfister, GG
Babu, SS
Satheesh, SK
Moorthy, KK
Carmichael, GR
Lu, Z
Streets, DG
AF Kumar, R.
Barth, M. C.
Nair, V. S.
Pfister, G. G.
Babu, S. Suresh
Satheesh, S. K.
Moorthy, K. Krishna
Carmichael, G. R.
Lu, Z.
Streets, D. G.
TI Sources of black carbon aerosols in South Asia and surrounding regions
during the Integrated Campaign for Aerosols, Gases and Radiation Budget
(ICARB)
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID ATMOSPHERIC BROWN CLOUDS; PREMONSOON SEASON; FORECASTING-MODEL;
TRANSPORT MODELS; WEATHER RESEARCH; NORTHERN INDIA; DUST AEROSOLS;
ARABIAN SEA; CLIMATE; CHEMISTRY
AB This study examines differences in the surface black carbon (BC) aerosol loading between the Bay of Bengal (BoB) and the Arabian Sea (AS) and identifies dominant sources of BC in South Asia and surrounding regions during March-May 2006 (Integrated Campaign for Aerosols, Gases and Radiation Budget, ICARB) period. A total of 13 BC tracers are introduced in the Weather Research and Forecasting Model coupled with Chemistry to address these objectives. The model reproduced the temporal and spatial variability of BC distribution observed over the AS and the BoB during the ICARB ship cruise and captured spatial variability at the inland sites. In general, the model underestimates the observed BC mass concentrations. However, the model-observation discrepancy in this study is smaller compared to previous studies. Model results show that ICARB measurements were fairly well representative of the AS and the BoB during the pre-monsoon season. Elevated BC mass concentrations in the BoB are due to 5 times stronger influence of anthropogenic emissions on the BoB compared to the AS. Biomass burning in Burma also affects the BoB much more strongly than the AS. Results show that anthropogenic and biomass burning emissions, respectively, accounted for 60 and 37% of the average +/- standard deviation (representing spatial and temporal variability) BC mass concentration (1341 +/- 2353 ng m(-3)) in South Asia. BC emissions from residential (61 %) and industrial (23 %) sectors are the major anthropogenic sources, except in the Himalayas where vehicular emissions dominate. We find that regional-scale transport of anthropogenic emissions contributes up to 25% of BC mass concentrations in western and eastern India, suggesting that surface BC mass concentrations cannot be linked directly to the local emissions in different regions of South Asia.
C1 [Kumar, R.] Natl Ctr Atmospher Res, Adv Study Program, Boulder, CO 80307 USA.
[Kumar, R.; Barth, M. C.; Pfister, G. G.] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80307 USA.
[Nair, V. S.; Babu, S. Suresh] Vikram Sarabhai Space Ctr, Space Phys Lab, Thiruvananthapuram, India.
[Satheesh, S. K.] Indian Inst Sci, Ctr Atmospher & Ocean Sci, Bangalore 560012, Karnataka, India.
[Moorthy, K. Krishna] Indian Space Res Org HQ, Bangalore, Karnataka, India.
[Carmichael, G. R.] Univ Iowa, Ctr Global & Reg Environm Res, Iowa City, IA 52242 USA.
[Lu, Z.; Streets, D. G.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
RP Kumar, R (reprint author), Natl Ctr Atmospher Res, Adv Study Program, POB 3000, Boulder, CO 80307 USA.
EM rkumar@ucar.edu
OI Nair, Vijayakumar S/0000-0001-8236-3590
FU National Science Foundation
FX We thank C. Knote for providing the basic WRF-Chem configuration used in
this study. We thank F. Flocke, S. Madronich and C. Knote for their
constructive comments on the manuscript. The data sets of initial and
boundary conditions for meteorological fields are downloaded from
http://rda.ucar.edu/datasets/ds083.2/. The data sets for initial and
boundary conditions for chemical fields, biogenic emissions, biomass
burning emissions and programs used to process these data sets are
downloaded from the website http://www2.acd.ucar.edu/wrf-chem/. The
National Center for Atmospheric Research is supported by the National
Science Foundation. Authors acknowledge the ICARB project of ISRO
Geosphere Biosphere Program for providing the data collected onboard
Sagar Kanya. We acknowledge ECCAD science team for providing emissions
data sets. Comments from two anonymous reviewers are greatly
appreciated.
NR 65
TC 10
Z9 10
U1 1
U2 15
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2015
VL 15
IS 10
BP 5415
EP 5428
DI 10.5194/acp-15-5415-2015
PG 14
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CJ2BM
UT WOS:000355289200006
ER
PT J
AU Shi, H
Lercher, JA
Yu, XY
AF Shi, Hui
Lercher, Johannes A.
Yu, Xiao-Ying
TI Sailing into uncharted waters: recent advances in the in situ monitoring
of catalytic processes in aqueous environments
SO CATALYSIS SCIENCE & TECHNOLOGY
LA English
DT Review
ID ENHANCED RAMAN-SPECTROSCOPY; SUM-FREQUENCY GENERATION; RAY-ABSORPTION
SPECTROSCOPY; SOLID-STATE NMR; TRANSMISSION ELECTRON-MICROSCOPY;
PARTICLE FLUORESCENCE MICROSCOPY; SCANNING-TUNNELING-MICROSCOPY; ONLINE
MASS-SPECTROMETRY; ATOMIC-FORCE MICROSCOPY; TRANSITION-METAL IONS
AB Catalysis in aqueous environments attracts enormous interest. Many characterization methods are well established at gas-solid interfaces, yet the majority of surface science approaches are limited to model surfaces and vacuum conditions. However, practical scenarios with complex catalyst structures, elevated temperatures and pressures, as well as the presence of two or more condensed phases, can pose immense challenges to these techniques, particularly for catalysts at their dynamic working states. In such contexts, this review highlights the advancement over the past five years in the in situ and time-resolved detection of catalytic processes and related phenomena in aqueous media, ideally under realistic conditions. We highlight latest technical innovations and novel chemistries that are made possible by recently developed toolboxes. Future directions of in situ and time-resolved analytical approaches applicable to aqueous phase catalysis are also presented.
C1 [Shi, Hui; Lercher, Johannes A.; Yu, Xiao-Ying] Pacific NW Natl Lab, Fundamental & Comp Sci Directorate, Richland, WA 99352 USA.
[Lercher, Johannes A.] Tech Univ Munich, Dept Chem, D-85747 Garching, Germany.
RP Shi, H (reprint author), Pacific NW Natl Lab, Fundamental & Comp Sci Directorate, Richland, WA 99352 USA.
EM xiaoying.yu@pnnl.gov
RI Shi, Hui/J-7083-2014
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences, Division of Chemical Sciences, Geosciences Biosciences;
Pacific Northwest National Laboratory (PNNL) Materials Synthesis and
Simulation Across Scales Initiative-Laboratory Directed Research and
Development (MS3-LDRD) fund; Chemical Imaging LDRD; Battelle
for the DOE [DE-AC05-76RL01830]
FX H.S. and J.A.L were supported by the U.S. Department of Energy, Office
of Science, Office of Basic Energy Sciences, Division of Chemical
Sciences, Geosciences & Biosciences. Dr. Yu is grateful to the Pacific
Northwest National Laboratory (PNNL) Materials Synthesis and Simulation
Across Scales Initiative-Laboratory Directed Research and Development
(MS3-LDRD) fund and the Chemical Imaging LDRD for support.
PNNL is operated by Battelle for the DOE under Contract
DE-AC05-76RL01830.
NR 199
TC 7
Z9 7
U1 11
U2 78
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2044-4753
EI 2044-4761
J9 CATAL SCI TECHNOL
JI Catal. Sci. Technol.
PY 2015
VL 5
IS 6
BP 3035
EP 3060
DI 10.1039/c4cy01720j
PG 26
WC Chemistry, Physical
SC Chemistry
GA CJ4WG
UT WOS:000355487900001
ER
PT J
AU Zhang, J
Zhu, J
Wang, L
Zhao, Y
AF Zhang, J.
Zhu, J.
Wang, L.
Zhao, Y.
TI A new lithium-rich anti-spinel in Li-O-Br system
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID GAMMA-AL2O3; HALIDES
AB In spinel-type materials currently known, the divalent anions are arranged in a closed-pack lattice and cations of various valences occupy some or all of the tetrahedral and octahedral sites. We report here the first discovery of an "electronically inverted'' anti-spinel. The new material, crystallized in a defect spinel structure, was obtained from the dehydration of Li5Br(OH)(4) under moderate pressure and temperature conditions.
C1 [Zhang, J.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
[Zhu, J.; Wang, L.; Zhao, Y.] Univ Nevada, High Pressure Sci & Engn Ctr, Las Vegas, NV 89154 USA.
[Zhu, J.; Wang, L.; Zhao, Y.] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
RP Zhang, J (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
EM jzhang@lanl.gov; Yusheng.Zhao@unlv.edu
OI Zhang, Jianzhong/0000-0001-5508-1782
FU Los Alamos National Laboratory; DOE [DE-AC52-06NA25396]; COMPRES, the
Consortium for Materials Properties Research in Earth Sciences under NSF
Cooperative Agreement [EAR 11-57758]; U.S. Department of Energy, Office
of Science, Office of Basic Energy Sciences [DE-AC02-98CH10886];
National Nuclear Security Administration under the Stewardship Science
Academic Alliances program through DOE Cooperative Agreement
[DE-NA0001982]
FX This research is supported by the Los Alamos National Laboratory, which
is operated by Los Alamos National Security LLC under DOE Contract
DE-AC52-06NA25396, and COMPRES, the Consortium for Materials Properties
Research in Earth Sciences under NSF Cooperative Agreement EAR 11-57758.
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. This research was also sponsored in part by the
National Nuclear Security Administration under the Stewardship Science
Academic Alliances program through DOE Cooperative Agreement
#DE-NA0001982.
NR 16
TC 1
Z9 1
U1 5
U2 26
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 47
BP 9666
EP 9669
DI 10.1039/c5cc01109d
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CJ5VA
UT WOS:000355558700017
PM 25977945
ER
PT J
AU Ding, JB
Zhu, X
Bu, LZ
Yao, JL
Guo, J
Guo, SJ
Huang, XQ
AF Ding, Jiabao
Zhu, Xing
Bu, Lingzheng
Yao, Jianlin
Guo, Jun
Guo, Shaojun
Huang, Xiaoqing
TI Highly open rhombic dodecahedral PtCu nanoframes
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID OXYGEN REDUCTION REACTION; ELECTROCATALYTIC ACTIVITY; BIMETALLIC
NANODENDRITES; NANOCRYSTALS; PD; ALLOY; NANOPARTICLES; CATALYSIS; NI;
CONSTRUCTION
AB Herein, we report a facile strategy that allows one-pot preparation of highly open rhombic dodecahedral PtCu alloy nanoframes. Due to the highly open structures, the PtCu nanoframes exhibit enhanced catalytic performance in methanol electrooxidation, showing a new strategy to create highly active catalysts.
C1 [Ding, Jiabao; Bu, Lingzheng; Yao, Jianlin; Huang, Xiaoqing] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Jiangsu, Peoples R China.
[Zhu, Xing; Guo, Jun] Soochow Univ, Testing & Anal Ctr, Suzhou 215123, Jiangsu, Peoples R China.
[Guo, Shaojun] Los Alamos Natl Lab, Phys Chem & Appl Spect, Los Alamos, NM 87545 USA.
RP Guo, SJ (reprint author), Los Alamos Natl Lab, Phys Chem & Appl Spect, POB 1663, Los Alamos, NM 87545 USA.
EM sguo@lanl.gov; hxq006@suda.edu.cn
RI Guo, Shaojun/A-8449-2011
OI Guo, Shaojun/0000-0002-5941-414X
FU Soochow University, Young Thousand Talented Program; J. Robert
Oppenheimer Distinguished Fellowship
FX This work was financially supported by the start-up funding from Soochow
University, Young Thousand Talented Program and J. Robert Oppenheimer
Distinguished Fellowship.
NR 40
TC 29
Z9 29
U1 22
U2 81
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 47
BP 9722
EP 9725
DI 10.1039/c5cc03190g
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CJ5VA
UT WOS:000355558700031
PM 25980624
ER
PT J
AU Wan, S
Jiang, XG
Guo, BK
Dai, S
Goodenough, JB
Sun, XG
AF Wan, Shun
Jiang, Xueguang
Guo, Bingkun
Dai, Sheng
Goodenough, John B.
Sun, Xiao-Guang
TI A stable fluorinated and alkylated lithium malonatoborate salt for
lithium ion battery application
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID BRANCHED POLYEPOXIDE ETHERS; CARBONATE-BASED SOLUTIONS; PROPYLENE
CARBONATE; ELECTROLYTE INTERFACE; FILM FORMATION; GRAPHITE; CONDUCTORS;
LIBOB; BIS(ALLYLMALONATO)BORATE; BIS(OXALATO)BORATE
AB A new fluorinated and alkylated lithium malonatoborate salt, lithium bis(2-methyl-2-fluoromalonato)borate (LiBMFMB), has been synthesized for lithium ion battery application. A 0.8 M LiBMFMB solution is obtained in a mixture of ethylene carbonate (EC) and ethyl methyl carbonate (EMC) (1 : 2 by wt). The new LiBMFMB based electrolyte exhibits good cycling stability and rate capability in LiNi0.5Mn1.5O4 and graphite based half-cells.
C1 [Wan, Shun; Dai, Sheng; Sun, Xiao-Guang] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Jiang, Xueguang; Dai, Sheng] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Guo, Bingkun; Goodenough, John B.] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA.
RP Sun, XG (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM sunx@ornl.gov
RI Guo, Bingkun/J-5774-2014; Dai, Sheng/K-8411-2015; Jiang,
Xueguang/J-5784-2013
OI Dai, Sheng/0000-0002-8046-3931; Jiang, Xueguang/0000-0002-9937-6029
FU U.S. Department of Energy's Office of Science, Basic Energy Science,
Materials Sciences and Engineering Division
FX This research was supported by the U.S. Department of Energy's Office of
Science, Basic Energy Science, Materials Sciences and Engineering
Division.
NR 30
TC 2
Z9 2
U1 4
U2 36
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 48
BP 9817
EP 9820
DI 10.1039/c5cc01428j
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CJ6VA
UT WOS:000355631700013
PM 25986467
ER
PT J
AU Martinez, AA
Orlicz, GC
Prestridge, KP
AF Martinez, Adam A.
Orlicz, Gregory C.
Prestridge, Katherine P.
TI A new experiment to measure shocked particle drag using multi-pulse
particle image velocimetry and particle tracking
SO EXPERIMENTS IN FLUIDS
LA English
DT Article
ID NONSTATIONARY FLOW; UNSTEADY DRAG; SPHERE; TUBE; WAVE; ACCELEROMETRY;
COEFFICIENT; TURBULENCE; MIXTURES; DYNAMICS
AB We demonstrate the measurement capabilities for a new horizontal shock tube facility designed to measure the displacements, velocities and accelerations of shock-accelerated particles just after shock passage. Eight-frame particle image accelerometry and particle tracking velocimetry accelerometry diagnostics are implemented, along with a shadowgraphy system for measuring the shock location during experiments. We demonstrate the driving conditions of the facility using a unique membraneless pneumatic driver and particle seeding system that can accommodate both solid and liquid particles in the carrier phase. Measurements of two types of solid particles show unsteady drag forces higher than those for steady drag.
C1 [Martinez, Adam A.; Orlicz, Gregory C.; Prestridge, Katherine P.] Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA.
RP Martinez, AA (reprint author), Los Alamos Natl Lab, Div Phys, MS H803, Los Alamos, NM 87545 USA.
EM adamamtz@lanl.gov; kpp@lanl.gov
RI Prestridge, Kathy/C-1137-2012
OI Prestridge, Kathy/0000-0003-2425-5086
NR 29
TC 4
Z9 4
U1 4
U2 11
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0723-4864
EI 1432-1114
J9 EXP FLUIDS
JI Exp. Fluids
PD JAN
PY 2015
VL 56
IS 1
AR 1854
DI 10.1007/s00348-014-1854-x
PG 12
WC Engineering, Mechanical; Mechanics
SC Engineering; Mechanics
GA CJ7JT
UT WOS:000355671900002
ER
PT J
AU Chervin, CN
Ko, JS
Miller, BW
Dudek, L
Mansour, AN
Donakowski, MD
Brintlinger, T
Gogotsi, P
Chattopadhyay, S
Shibata, T
Parker, JF
Hahn, BP
Rolison, DR
Long, JW
AF Chervin, Christopher N.
Ko, Jesse S.
Miller, Bryan W.
Dudek, Lisa
Mansour, Azzam N.
Donakowski, Martin D.
Brintlinger, Todd
Gogotsi, Pavel
Chattopadhyay, Soma
Shibata, Tomohiro
Parker, Joseph F.
Hahn, Benjamin P.
Rolison, Debra R.
Long, Jeffrey W.
TI Defective by design: vanadium-substituted iron oxide nanoarchitectures
as cation-insertion hosts for electrochemical charge storage
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID LITHIUM-ION BATTERIES; K-EDGE; AEROGELS; V2O5; NANOPARTICLES;
GAMMA-FE2O3; MONOLITHS; EPOXIDES; IFEFFIT; CATHODE
AB Vanadium-substituted iron oxide aerogels (2 : 1 Fe : V ratio; VFe2Ox) are synthesized using an epoxide-initiated sol-gel method to form high surface-area, mesoporous materials in which the degree of crystallinity and concentration of defects are tuned via thermal treatments under controlled atmospheres. Thermal processing of the X-ray amorphous, as-synthesized VFe2Ox aerogels at 300 degrees C under O-2-rich conditions removes residual organic byproducts while maintaining a highly defective gamma-Fe2O3-like local structure with minimal long-range order and vanadium in the +5 state. When as-synthesized VFe2Ox aerogels are heated under low partial pressure of O-2 (e.g., flowing argon), a fraction of vanadium sites are reduced to the +4 state, driving crystallization to a Fe3O4-like cubic phase. Subsequent thermal oxidation of this nanocrystalline VFe2Ox aerogel re-oxidizes vanadium +4 to +5, creating additional cation vacancies and re-introducing disordered oxide domains. We correlate the electrochemical charge-storage properties of this series of VFe2Ox aerogels with their degree of order and chemical state, as verified by X-ray diffraction, X-ray photoelectron spectroscopy, and X-ray absorption spectroscopy. We find that the disordered O-2-heated VFe2Ox aerogel yields the highest Li+- and Na+-insertion capacities among this series, approaching 130 mA h g(-1) and 70 mA h g(-1), respectively. Direct heat-treatment of the VFe2Ox aerogel in flowing argon to yield the partially reduced, nanocrystalline form results in significantly lower Li+-insertion capacity (77 mA h g(-1)), which improves to 105 mA h g(-1) by thermal oxidation to create additional vacancies and structural disorder.
C1 [Chervin, Christopher N.; Miller, Bryan W.; Donakowski, Martin D.; Gogotsi, Pavel; Parker, Joseph F.; Hahn, Benjamin P.; Rolison, Debra R.; Long, Jeffrey W.] US Naval Res Lab, Surface Chem Branch, Washington, DC 20375 USA.
[Ko, Jesse S.] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA.
[Dudek, Lisa] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA.
[Mansour, Azzam N.] Naval Surface Warfare Ctr, Carderock Div, Mat & Power Syst Branch, West Bethesda, MD 20817 USA.
[Brintlinger, Todd] US Naval Res Lab, Mat & Sensors Branch, Washington, DC 20375 USA.
[Chattopadhyay, Soma] Elgin Community Coll, Dept Phys Sci, Elgin, IL 60123 USA.
[Chattopadhyay, Soma; Shibata, Tomohiro] IIT, CSRRI, Adv Photon Source, Argonne, IL 60439 USA.
RP Chervin, CN (reprint author), US Naval Res Lab, Surface Chem Branch, Code 6170, Washington, DC 20375 USA.
EM christopher.chervin@nrl.navy.mil; jeffrey.long@nrl.navy.mil
RI ID, MRCAT/G-7586-2011
FU U.S. Office of Naval Research; U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
FX This work was supported by the U.S. Office of Naval Research. 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. M.D.D. and B.P.H. were
NRC-NRL post-doctoral associates.
NR 47
TC 3
Z9 3
U1 9
U2 52
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 22
BP 12059
EP 12068
DI 10.1039/c5ta01507c
PG 10
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CJ5UK
UT WOS:000355556300049
ER
PT J
AU Devaux, D
Harry, KJ
Parkinson, DY
Yuan, R
Hallinan, DT
MacDowell, AA
Balsara, NP
AF Devaux, Didier
Harry, Katherine J.
Parkinson, Dilworth Y.
Yuan, Rodger
Hallinan, Daniel T.
MacDowell, Alastair A.
Balsara, Nitash P.
TI Failure Mode of Lithium Metal Batteries with a Block Copolymer
Electrolyte Analyzed by X-Ray Microtomography
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID SOLID POLYMER ELECTROLYTES; TRIBLOCK COPOLYMERS; MOLECULAR-WEIGHT;
MICROPHASE SEPARATION; POLY(ETHYLENE OXIDE); IONIC-CONDUCTIVITY;
DENDRITE FORMATION; LITHIUM/POLYMER CELLS; EQUILIBRIUM BEHAVIOR;
HIGH-PERFORMANCE
AB Solid block polymer electrolytes are promising candidates for the development of high energy density rechargeable lithium metal based batteries. All solid-state batteries comprising lithium metal negative electrode and lithium iron phosphate (LiFePO4) composite positive electrode were assembled. A polystyrene-b-poly(ethylene oxide) (SEO) copolymer doped with a lithium salt was used as the electrolyte. After cycling the batteries, the reason for capacity fade and failure was determined by imaging the batteries using synchrotron hard X-ray microtomography. These experiments revealed partial delamination of the lithium foil and the block copolymer electrolyte layer. The void volume between the foil and electrolyte layer obtained after 40 to 90 cycles is comparable to volume change in the battery during one cycle. A simple model to account for the effect of delamination on current density in the battery is presented. Capacity fade and battery failures observed in our experiments are consistent with this model. No evidence of lithium dendrite formation was found. In contrast, cycled lithium-lithium symmetric cells with the same polymer electrolyte at the same current density failed due to dendrite formation. No evidence of delamination was found in these cells. (C) The Author(s) 2015. Published by ECS. All rights reserved.
C1 [Devaux, Didier; Yuan, Rodger; Balsara, Nitash P.] Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
[Harry, Katherine J.; Yuan, Rodger; Balsara, Nitash P.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Harry, Katherine J.; Balsara, Nitash P.] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Parkinson, Dilworth Y.; MacDowell, Alastair A.] Lawrence Berkeley Natl Lab, Adv Light Source Div, Berkeley, CA 94720 USA.
[Hallinan, Daniel T.] Florida State Univ, Florida A&M Univ, Coll Engn, Dept Chem & Biomed Engn, Tallahassee, FL 32310 USA.
[Balsara, Nitash P.] Lawrence Berkeley Natl Lab, JCESR, Berkeley, CA 94720 USA.
RP Devaux, D (reprint author), Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
EM nbalsara@berkeley.edu
FU Joint Center for Energy Storage Research, an Energy Innovation Hub - U.
S. Department of Energy (DOE), Office of Science, Basic Energy Sciences
(BES); Office of Science, Office of Basic Energy Sciences of the U. S.
Department of Energy [DE-AC02-05CH11231]
FX This work was primarily supported by the Joint Center for Energy Storage
Research, an Energy Innovation Hub funded by the U. S. Department of
Energy (DOE), Office of Science, Basic Energy Sciences (BES). The
microtomography work was carried out at the Advanced Light Source at
Lawrence Berkeley National Laboratory, 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.
NR 78
TC 6
Z9 6
U1 9
U2 55
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
EI 1945-7111
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2015
VL 162
IS 7
BP A1301
EP A1309
DI 10.1149/2.0721507jes
PG 9
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA CJ6ZM
UT WOS:000355643700024
ER
PT J
AU Gowda, SR
Dees, DW
Jansen, AN
Gallagher, KG
AF Gowda, Sanketh R.
Dees, Dennis W.
Jansen, Andrew N.
Gallagher, Kevin G.
TI Examining the Electrochemical Impedance at Low States of Charge in
Lithium- and Manganese-Rich Layered Transition-Metal Oxide Electrodes
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID ION POSITIVE ELECTRODES; HIGH-ENERGY-DENSITY; CATHODE MATERIALS;
VOLTAGE-FADE; IRREVERSIBLE CAPACITY; CO ELECTRODES; BATTERIES; LI; MN;
NI
AB Lithium- and manganese-rich layered transition-metal oxide (LMR-NMC) intercalation electrodes are projected to enable batteries with high energy density and low costs for energy. However, implementation Of LMR-NMC materials are challenged by life limiting mechanisms as well as less than desired rate performance. Here-in, we use electrochemical characterization of LMR-NMC electrodes to examine the large magnitude of impedance and the asymmetric polarization between charge and discharge at low states of charge (SOC). The area-specific impedance (ASI) of LMR-NMC displays a similar dependency as standard layered lithium metal oxides when compared as a function of voltage rather than SOC. Numerical physics-based modeling is used to analyze and simulate the potential response. The increasing and asymmetric behavior of the ASI in LMR-NMC at low SOC is suggested to be the result of the differing lithium diffusivities in the heterogeneous, nano-composite metal oxide material. Transport of lithium within LMR-NMC is governed by the relatively facile nickel- and cobalt-rich domains. Conversely, the mass transport within the lithium- and manganese-rich domains are characterized as comparatively sluggish. Lowering the stoichiometry of the lithium and manganese to achieve an optimal energy density at relevant discharge rates is suggested as a potentially viable path forward. (C) 2015 The Electrochemical Society. All rights reserved.
C1 [Gowda, Sanketh R.; Dees, Dennis W.; Jansen, Andrew N.; Gallagher, Kevin G.] Argonne Natl Lab, Chem Sci & Engn Div, Electrochem Energy Storage Theme, Argonne, IL 60439 USA.
RP Gowda, SR (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, Electrochem Energy Storage Theme, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM kevin.gallagher@anl.gov
RI Jansen, Andrew/Q-5912-2016
OI Jansen, Andrew/0000-0003-3244-7790
FU Vehicle Technologies Program, Hybrid and Electric Systems; DOE-EERE
FX Support from the Vehicle Technologies Program, Hybrid and Electric
Systems, David Howell (Team Lead) and Peter Faguy, at the U.S.
Department of Energy, Office of Energy Efficiency and Renewable Energy,
(DOE-EERE) is gratefully acknowledged. Steven Trask and Bryant Polzin of
the DOE-EERE funded Cell Analysis, Modeling, and Prototyping (CAMP)
Facility at Argonne National Laboratory constructed the electrode
laminates.
NR 37
TC 3
Z9 3
U1 4
U2 38
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
EI 1945-7111
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2015
VL 162
IS 7
BP A1374
EP A1381
DI 10.1149/2.0931507jes
PG 8
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA CJ6ZM
UT WOS:000355643700033
ER
PT J
AU Wu, QL
Maroni, VA
Gosztola, DJ
Miller, DJ
Dees, DW
Lu, WQ
AF Wu, Qingliu
Maroni, Victor A.
Gosztola, David J.
Miller, Dean J.
Dees, Dennis W.
Lu, Wenquan
TI A Raman-Based Investigation of the Fate of Li2MnO3 in Lithium- and
Manganese-Rich Cathode Materials for Lithium Ion Batteries
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID IN-SITU; ELECTRODE MATERIALS; VOLTAGE FADE; EX-SITU; TOPOTAXY; MN
AB The relationship between structure and electrochemical performance of lithium- and manganese-rich cathode materials with the general formula xLi(2)MnO(3)center dot(1-x)LiMO2 is under intensive study world-wide in the context of its importance to the development of high energy/high capacity lithium batteries. One of the issues raised in these studies is the fate of the Li2MnO3 component as a function of voltage and repeated cycling. We have performed Raman spectroscopy based measurements that shed light on the transformations of the Li2MnO3 phase as a function of state-of-charge. We find that on charging the Li2MnO3 phase appears to de-lithiate at a rate at least equal to that of the LiMO2 phase, whereas, on discharge a Li2MnO3-like component reforms later in the discharge than does the LiMO2 phase. The absence of X-ray diffraction evidence for the presence of Li2MnO3 after the first charge/discharge cycle can be reconciled by the possibility that the C2/m structured Li2MnO3 exists in domains thick enough to diffract; but during subsequent discharging, a perturbed C2/m phase forms in conjunction with the re-lithiated LiMO2 phase in thin sheets (electrochemically induced topotaxy) that are not thick enough to diffract but form in sufficient volume to give Raman scattering similar to that of Li2MnO3. (C) The Author(s) 2015. Published by ECS. All rights reserved.
C1 [Wu, Qingliu; Maroni, Victor A.; Dees, Dennis W.; Lu, Wenquan] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Gosztola, David J.; Miller, Dean J.] Argonne Natl Lab, Nanosci & Technol Div, Argonne, IL 60439 USA.
RP Wu, QL (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
EM luw@anl.gov
RI Gosztola, David/D-9320-2011
OI Gosztola, David/0000-0003-2674-1379
FU UChicago Argonne, LLC [DE-AC02-06CH11357]; USDOE [DE-AC02-06CH11357]
FX The authors are indebted to Dr. Javier Bareno for beneficial discussions
concerning the notions about phase evolution in LMR-NMC materials.
Support from the Vehicle Technologies Program, Hybrid and Electric
Systems; specifically David Howell (Team Lead) and Peter Faguy, at the
U.S. Department of Energy, Office of Energy Efficiency and Renewable
Energy, is gratefully acknowledged. Use of Raman and X-ray diffraction
instrumentation at Argonne's Center for Nanoscale Materials was
supported by the USDOE, Office of Science, Office of Basic Energy
Sciences. The work was performed at Argonne National Laboratory under
contract DE-AC02-06CH11357 between UChicago Argonne, LLC and the USDOE.
NR 23
TC 6
Z9 6
U1 3
U2 30
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
EI 1945-7111
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2015
VL 162
IS 7
BP A1255
EP A1264
DI 10.1149/2.0631507jes
PG 10
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA CJ6ZM
UT WOS:000355643700017
ER
PT S
AU Boutchko, R
Mitra, D
Pan, H
Jagust, W
Gullberg, GT
AF Boutchko, Rostyslav
Mitra, Debasis
Pan, Hui
Jagust, William
Gullberg, Grant T.
BE Gimi, B
Molthen, RC
TI Improved Factor Analysis of Dynamic PET Images to Estimate Arterial
Input Function and Tissue Curves
SO MEDICAL IMAGING 2015: BIOMEDICAL APPLICATIONS IN MOLECULAR, STRUCTURAL,
AND FUNCTIONAL IMAGING
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Medical Imaging - Biomedical Applications in Molecular,
Structural, and Functional Imaging
CY FEB 24-26, 2015
CL Orlando, FL
SP SPIE, ALIO Ind, Alpin Med Syst, Modus Med Devices Inc, Bruker
DE Dynamic image analysis; Factor analysis in dynamic structures; Image
derived arterial input function; PET brain imaging; Alzheimer's studies
AB Factor analysis of dynamic structures (FADS) is a methodology of extracting time-activity curves (TACs) for corresponding different tissue types from noisy dynamic images. The challenges of FADS include long computation time and sensitivity to the initial guess, resulting in convergence to local minima far from the true solution. We propose a method of accelerating and stabilizing FADS application to sequences of dynamic PET images by adding preliminary cluster analysis of the time activity curves for individual voxels. We treat the temporal variation of individual voxel concentrations as a set of time-series and use a partial clustering analysis to identify the types of voxel TACs that are most functionally distinct from each other. These TACs provide a good initial guess for the temporal factors for subsequent FADS processing. Applying this approach to a set of single slices of dynamic C-11-PIB images of the brain allows identification of the arterial input function and two different tissue TACs that are likely to correspond to the specific and non-specific tracer binding-tissue types. These results enable us to perform direct classification of tissues based on their pharmacokinetic properties in dynamic PET without relying on a compartment-based kinetic model, without identification of the reference region, or without using any external methods of estimating the arterial input function, as needed in some techniques.
C1 [Boutchko, Rostyslav; Jagust, William; Gullberg, Grant T.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Mitra, Debasis; Pan, Hui] Florida Inst Technol, Dept Comp Sci, Melbourne, FL 32901 USA.
RP Boutchko, R (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Dr,Mail Stop 55, Berkeley, CA 94720 USA.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-507-0
J9 PROC SPIE
PY 2015
VL 9417
AR 94170X
DI 10.1117/12.2081461
PG 6
WC Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BC8GL
UT WOS:000355665600029
ER
PT S
AU Huang, LJ
Shin, J
Chen, T
Lin, YZ
Intrator, M
Hanson, K
Epstein, K
Sandoval, D
Williamson, M
AF Huang, Lianjie
Shin, Junseob
Chen, Ting
Lin, Youzuo
Intrator, Miranda
Hanson, Kenneth
Epstein, Katherine
Sandoval, Daniel
Williamson, Michael
BE Bosch, JG
Duric, N
TI Breast ultrasound tomography with two parallel transducer arrays:
Preliminary clinical results
SO MEDICAL IMAGING 2015: ULTRASONIC IMAGING AND TOMOGRAPHY
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Medical Imaging - Ultrasonic Imaging and Tomography
CY FEB 22-23, 2015
CL Orlando, FL
SP Alpin Med Syst, Modus Med Devices Inc, Bruker, ALIO Ind, American Assoc Physicists Med, American Physiolog Soc, Comp Assisted Radiol & Surg, Med Image Percept Soc, Radiolog Soc North America, Soc Imaging Informat Med, World Mol Imaging Soc, DICOM Stand Comm, SPIE
DE Breast cancer; synthetic-aperture ultrasound; ultrasound imaging;
ultrasound tomography
ID DATA-ACQUISITION; APERTURE; TRANSMISSION; DIFFRACTION; SYSTEM
AB Ultrasound tomography has great potential to provide quantitative estimations of physical properties of breast tumors for accurate characterization of breast cancer. We design and manufacture a new synthetic-aperture breast ultrasound tomography system with two parallel transducer arrays. The distance of these two transducer arrays is adjustable for scanning breasts with different sizes. The ultrasound transducer arrays are translated vertically to scan the entire breast slice by slice and acquires ultrasound transmission and reflection data for whole-breast ultrasound imaging and tomographic reconstructions. We use the system to acquire patient data at the University of New Mexico Hospital for clinical studies. We present some preliminary imaging results of in vivo patient ultrasound data. Our preliminary clinical imaging results show promising of our breast ultrasound tomography system with two parallel transducer arrays for breast cancer imaging and characterization.
C1 [Huang, Lianjie; Shin, Junseob; Chen, Ting; Lin, Youzuo; Intrator, Miranda; Hanson, Kenneth] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Epstein, Katherine; Sandoval, Daniel; Williamson, Michael] Univ New Mexico, Dept Radiol, Albuquerque, NM 87131 USA.
RP Huang, LJ (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM ljh@lanl.gov
OI Chen, Ting/0000-0002-9599-871X
NR 55
TC 2
Z9 2
U1 1
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-509-4
J9 PROC SPIE
PY 2015
VL 9419
AR 941916
DI 10.1117/12.2082404
PG 10
WC Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BC8EU
UT WOS:000355579600033
ER
PT S
AU Intrator, M
Lin, YZ
Chen, T
Shin, J
Huang, LJ
AF Intrator, Miranda
Lin, Youzuo
Chen, Ting
Shin, Junseob
Huang, Lianjie
BE Bosch, JG
Duric, N
TI Ultrasound bent-ray tomography with a modified total-variation
regularization scheme
SO MEDICAL IMAGING 2015: ULTRASONIC IMAGING AND TOMOGRAPHY
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Medical Imaging - Ultrasonic Imaging and Tomography
CY FEB 22-23, 2015
CL Orlando, FL
SP Alpin Med Syst, Modus Med Devices Inc, Bruker, ALIO Ind, American Assoc Physicists Med, American Physiolog Soc, Comp Assisted Radiol & Surg, Med Image Percept Soc, Radiolog Soc North America, Soc Imaging Informat Med, World Mol Imaging Soc, DICOM Stand Comm, SPIE
DE Breast cancer; cancer detection; bent ray; modified total-variation
regularization; sound speed; transmission; ultrasound tomography
AB The sound-speed distribution of the breast can be used for characterizing breast tumors, because they typically have a higher sound speed than normal breast tissue. This is understood to be the result of remodeling of the extracellular matrix surrounding tumors. Breast sound-speed distribution can be reconstructed using ultrasound bent-ray tomography (USRT). We have recently demonstrated that USRT, using arrival times of both transmission and reflection data, significantly improves image quality. To further improve the robustness of tomographic reconstructions, we develop a USRT method using a modified total-variation (MTV) regularization scheme. Regularization is often used in solving inverse problems by introducing restrictions such as for smoothness. Tikhonov regularization is a widely used regularization scheme that tends to smooth tomographic images, but oversmoothing can obscure critical diagnostic detail such as tumor margins. Total-variation (TV) regularization is another common regularization scheme that preserves tumor margins, but at the cost of increased image noise. Our new USRT with MTV regularization is a Tikhonov-TV hybrid, reducing image noise while preserving margins. We apply our new method to ultrasound transmission data from numerical phantoms, and compare the results with those obtained using Tikhonov regularization.
C1 [Intrator, Miranda; Lin, Youzuo; Chen, Ting; Shin, Junseob; Huang, Lianjie] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Huang, LJ (reprint author), Los Alamos Natl Lab, MS D452, Los Alamos, NM 87545 USA.
EM ljh@lanl.gov
OI Chen, Ting/0000-0002-9599-871X
NR 16
TC 0
Z9 0
U1 1
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-509-4
J9 PROC SPIE
PY 2015
VL 9419
AR 941917
DI 10.1117/12.2082192
PG 10
WC Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BC8EU
UT WOS:000355579600034
ER
PT J
AU Prasai, B
Ren, Y
Shan, SY
Zhao, YG
Cronk, H
Luo, J
Zhong, CJ
Petkov, V
AF Prasai, Binay
Ren, Yang
Shan, Shiyao
Zhao, Yinguang
Cronk, Hannah
Luo, Jin
Zhong, Chuan-Jian
Petkov, Valeri
TI Synthesis-atomic structure-properties relationships in metallic
nanoparticles by total scattering experiments and 3D computer
simulations: case of Pt-Ru nanoalloy catalysts (vol 7, pg 8122, 2015)
SO NANOSCALE
LA English
DT Correction
C1 [Prasai, Binay; Petkov, Valeri] Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48858 USA.
[Ren, Yang] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA.
[Shan, Shiyao; Zhao, Yinguang; Cronk, Hannah; Luo, Jin; Zhong, Chuan-Jian] SUNY Binghamton, Dept Chem, Binghamton, NY 13902 USA.
RP Petkov, V (reprint author), Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48858 USA.
EM petko1vg@cmich.edu
RI Zhong, Chuan-Jian/D-3394-2013
NR 1
TC 0
Z9 0
U1 5
U2 17
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 22
BP 10279
EP 10279
DI 10.1039/c5nr90098k
PG 1
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CJ5VL
UT WOS:000355560200041
PM 25982103
ER
PT J
AU Alexandrov, V
Rosso, KM
AF Alexandrov, Vitaly
Rosso, Kevin M.
TI Ab initio modeling of Fe(II) adsorption and interfacial electron
transfer at goethite (alpha-FeOOH) surfaces
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID DENSITY-FUNCTIONAL THEORY; MOLECULAR-DYNAMICS; HEMATITE ALPHA-FE2O3;
IRON-OXIDES; WATER; SIMULATION; REACTIVITY; MINERALS; EXCHANGE;
TRANSFORMATION
AB Goethite (alpha-FeOOH) surfaces represent one of the most ubiquitous redox-active interfaces in the environment, playing an important role in biogeochemical metal cycling and contaminant residence in the subsurface. Fe(II)-catalyzed recrystallization of goethite is a fundamental process in this context, but the proposed Fe(II)(aq)-Fe(III)(goethite) electron and iron atom exchange mechanism of recrystallization remains poorly understood at the atomic level. We examine the adsorption of aqueous Fe(II) and subsequent interfacial electron transfer (ET) between adsorbed Fe(II) and structural Fe(III) at the (110) and (021) goethite surfaces using density functional theory calculations including Hubbard U corrections (DFT + U) aided by ab initio molecular dynamics simulations. We investigate various surface sites for the adsorption of Fe2+(H2O)(6) in different coordination environments. Calculated energies for adsorbed complexes at both surfaces favor monodentate complexes with reduced 4- and 5-fold coordination over higher-dentate structures and 6-fold coordination. The hydrolysis of H2O ligands is observed for some pre-ET adsorbed Fe(II) configurations. ET from the adsorbed Fe(II) into the goethite lattice is calculated to be energetically uphill always, but simultaneous proton transfer from H2O ligands of the adsorbed complexes to the surface oxygen species stabilizes post-ET states. We find that surface defects such as oxygen vacancies near the adsorption site also can stabilize post-ET states, enabling the Fe(II)(aq)-Fe(III)(goethite) interfacial electron transfer reaction implied from experiments to proceed.
C1 [Alexandrov, Vitaly; Rosso, Kevin M.] Pacific NW Natl Lab, Div Phys Sci, Richland, WA 99352 USA.
RP Alexandrov, V (reprint author), Pacific NW Natl Lab, Div Phys Sci, Richland, WA 99352 USA.
EM vitali.alexandrov@pnnl.gov
FU U.S. Department of Energy Office of Science, Office of Basic Energy
Sciences from the Chemical Sciences, Geosciences and Biosciences
Division through the Geosciences Program at PNNL
FX This research was supported by the U.S. Department of Energy Office of
Science, Office of Basic Energy Sciences from the Chemical Sciences,
Geosciences and Biosciences Division through the Geosciences Program at
PNNL. The computations were performed using Institutional Computing at
Pacific Northwest National Laboratory. The authors gratefully
acknowledge Eugene Ilton for fruitful discussions.
NR 56
TC 3
Z9 4
U1 21
U2 84
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 22
BP 14518
EP 14531
DI 10.1039/c5cp00921a
PG 14
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CJ6VN
UT WOS:000355633400028
PM 25968615
ER
PT J
AU Liu, J
Adamska, L
Doorn, SK
Tretiak, S
AF Liu, Jin
Adamska, Lyudmyla
Doorn, Stephen K.
Tretiak, Sergei
TI Singlet and triplet excitons and charge polarons in cycloparaphenylenes:
a density functional theory study
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID CARBON NANORINGS; HYBRID FUNCTIONALS; OPTOELECTRONIC PROPERTIES;
RAMAN-SPECTROSCOPY; OPTICAL-PROPERTIES; SIZE DEPENDENCE; MOLECULES;
NANOHOOPS; APPROXIMATION; FLUORESCENCE
AB The conformational structure and the electronic properties of various electronic excitations in cycloparaphenylenes (CPPs) are calculated using hybrid density functional theory (DFT). The results demonstrate that wavefunctions of singlet and triplet excitons as well as the positive and negative polarons remain fully delocalized in CPPs. In contrast, these excitations in larger CPP molecules become localized on several phenyl rings, which are locally planarized, while the undeformed ground state geometry is preserved on the rest of the hoop. As evidenced by the measurements of bond-length alternation and dihedral angles, localized regions show stronger hybridization between neighboring bonds and thus enhanced electronic communication. This effect is even more significant in the smaller hoops, where phenyl rings have strong quinoid character in the ground state. Thus, upon excitation, electron-phonon coupling leads to the self-trapping of the electronic wavefunction and release of energy from fractions of an eV up to two eVs, depending on the type of excitation and the size of the hoop. The impact of such localization on electronic and optical properties of CPPs is systematically investigated and compared with the available experimental measurements.
C1 [Liu, Jin] Univ Rochester, Dept Chem Engn, Rochester, NY 14627 USA.
[Adamska, Lyudmyla; Tretiak, Sergei] Los Alamos Natl Lab, Theoret Div T 1, Los Alamos, NM 87545 USA.
[Adamska, Lyudmyla; Tretiak, Sergei] Los Alamos Natl Lab, CNLS, Los Alamos, NM 87545 USA.
[Doorn, Stephen K.; Tretiak, Sergei] Los Alamos Natl Lab, CINT, Los Alamos, NM 87545 USA.
RP Adamska, L (reprint author), Los Alamos Natl Lab, Theoret Div T 1, Los Alamos, NM 87545 USA.
EM mila@lanl.gov
RI Tretiak, Sergei/B-5556-2009
OI Tretiak, Sergei/0000-0001-5547-3647
FU U.S. Department of Energy; Los Alamos LDRD funds; U.S. Department of
Energy [DE-AC5206NA25396]; Center for Integrated Nanotechnologies
(CINT); Center for Nonlinear Studies (CNLS) at LANL
FX This work was supported by the U.S. Department of Energy and Los Alamos
LDRD funds. Los Alamos National Laboratory is operated by the Los Alamos
National Security, LLC, for the National Nuclear Security Administration
of the U.S. Department of Energy under contract DE-AC5206NA25396. We
acknowledge support from the Center for Integrated Nanotechnologies
(CINT) and the Center for Nonlinear Studies (CNLS) at LANL.
NR 56
TC 6
Z9 6
U1 1
U2 9
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 22
BP 14613
EP 14622
DI 10.1039/c5cp01782c
PG 10
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CJ6VN
UT WOS:000355633400038
PM 25971627
ER
PT J
AU Johnson, GE
Olivares, A
Hill, D
Laskin, J
AF Johnson, Grant E.
Olivares, Astrid
Hill, David
Laskin, Julia
TI Cationic gold clusters ligated with differently substituted phosphines:
effect of substitution on ligand reactivity and binding
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID RAY-STRUCTURE DETERMINATION; STRUCTURAL-CHARACTERIZATION; AU-13
CLUSTERS; SIZE; NANOPARTICLES; COMPLEXES; DISSOCIATION; NANOCLUSTERS;
MONODISPERSE; PHOSPHORUS
AB We present a systematic study of the effect of the number of methyl (Me) and cyclohexyl (Cy) functional groups in monodentate phosphine ligands on the solution-phase synthesis of ligated sub-nanometer gold clusters and their gas-phase fragmentation pathways. Small mixed ligand cationic gold clusters were synthesized using reactions between pre-formed triphenylphosphine ligated (PPh3) gold clusters and monodentate Me- and Cy-substituted phosphine ligands in solution and characterized using electrospray ionization mass spectrometry (ESI-MS) and collision-induced dissociation (CID) experiments. Under the same experimental conditions, larger gold-PPh3 clusters undergo efficient exchange of unsubstituted PPh3 ligands for singly Me- and Cy-substituted PPh2Me and PPh2Cy ligands. The efficiency of reaction decreases with an increasing number of Me or Cy groups in the substituted phosphine ligands. CID experiments performed for a series of mixed-ligand gold clusters indicate that loss of a neutral Me-substituted ligand is preferred over loss of a neutral PPh3 ligand while the opposite trend is observed for Cy-substituted ligands. The branching ratio of the competing ligand loss channels is strongly correlated with the electron donating ability of the phosphorous lone pair as determined by the relative proton affinity of the ligand. The results indicate that the relative ligand binding energies increase in the order PMe3 < PPhMe2 < PPh2Me < PPh3 < PPh2Cy < PPhCy2 < PCy3. Furthermore, the difference in relative ligand binding energies increases with the number of substituted PPh3-mMem or PPh3-mCym ligands (L) on each cluster. This study provides the first experimental determination of the relative binding energies of ligated gold clusters containing differently substituted monophosphine ligands, which are important to controlling their synthesis and reactivity in solution. The results also indicate that ligand substitution is an important parameter that must be considered in theoretical modeling of these complex systems.
C1 [Johnson, Grant E.; Olivares, Astrid; Hill, David; Laskin, Julia] Pacific NW Natl Lab, Div Phys Sci, Richland, WA 99352 USA.
RP Johnson, GE (reprint author), Pacific NW Natl Lab, Div Phys Sci, POB 999, 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 US Department of Energy (DOE), Office of Science, Office of Basic Energy
Sciences, Division of Chemical Sciences, Geosciences and Biosciences;
DOE Science Undergraduate Laboratory Internship (SULI) program; DOE's
Office of Biological and Environmental Research
FX This work was supported by the US Department of Energy (DOE), Office of
Science, Office of Basic Energy Sciences, Division of Chemical Sciences,
Geosciences and Biosciences. AO and DH acknowledge support from the DOE
Science Undergraduate Laboratory Internship (SULI) program. This work
was performed using EMSL, a national scientific user facility sponsored
by the DOE's Office of Biological and Environmental Research and located
at Pacific Northwest National Laboratory (PNNL). PNNL is a multiprogram
national laboratory operated for DOE by Battelle.
NR 49
TC 4
Z9 4
U1 4
U2 29
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 22
BP 14636
EP 14646
DI 10.1039/c5cp01686j
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CJ6VN
UT WOS:000355633400040
PM 25971528
ER
PT S
AU Gunzburger, M
Jantsch, P
Teckentrup, A
Webster, C
AF Gunzburger, Max
Jantsch, Peter
Teckentrup, Aretha
Webster, Clayton
BE Simos, TE
Tsitouras, C
TI A Multilevel Stochastic Collocation Method for SPDEs
SO PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND
APPLIED MATHEMATICS 2014 (ICNAAM-2014)
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference on Numerical Analysis and Applied Mathematics
(ICNAAM)
CY SEP 22-28, 2014
CL Rhodes, GREECE
DE multilevel methods; stochastic collocation; SPDEs; uncertainty
quantification; finite element methods
ID PARTIAL-DIFFERENTIAL-EQUATIONS; RANDOM INPUT DATA; SIMULATION
AB We present a multilevel stochastic collocation method that, as do multilevel Monte Carlo methods, uses a hierarchy of spatial approximations to reduce the overall computational complexity when solving partial differential equations with random inputs. For approximation in parameter space, a hierarchy of multi-dimensional interpolants of increasing fidelity are used. Rigorous convergence and computational cost estimates for the new multilevel stochastic collocation method are derived and used to demonstrate its advantages compared to standard single-level stochastic collocation approximations as well as multilevel Monte Carlo methods.
C1 [Gunzburger, Max; Teckentrup, Aretha] Florida State Univ, Tallahassee, FL 32306 USA.
[Jantsch, Peter] Univ Tennessee, Knoxville, TN 37996 USA.
[Webster, Clayton] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Gunzburger, M (reprint author), Florida State Univ, Tallahassee, FL 32306 USA.
NR 12
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1287-3
J9 AIP CONF PROC
PY 2015
VL 1648
AR 020005
DI 10.1063/1.4912309
PG 3
WC Mathematics, Applied; Physics, Applied
SC Mathematics; Physics
GA BC7YA
UT WOS:000355339700005
ER
PT J
AU Haveraaen, M
Morris, K
Rouson, D
Radhakrishnan, H
Carson, C
AF Haveraaen, Magne
Morris, Karla
Rouson, Damian
Radhakrishnan, Hari
Carson, Clayton
TI High-Performance Design Patterns for Modern Fortran
SO SCIENTIFIC PROGRAMMING
LA English
DT Article
AB This paper presents ideas for using coordinate-free numerics in modern Fortran to achieve code flexibility in the partial differential equation (PDE) domain. We also show how Fortran, over the last few decades, has changed to become a language well-suited for state-of-the-art software development. Fortran's new coarray distributed data structure, the language's class mechanism, and its side-effect-free, pure procedure capability provide the scaffolding on which we implement HPC software. These features empower compilers to organize parallel computations with efficient communication. We present some programming patterns that support asynchronous evaluation of expressions comprised of parallel operations on distributed data. We implemented these patterns using coarrays and the message passing interface (MPI). We compared the codes' complexity and performance. The MPI code is much more complex and depends on external libraries. The MPI code on Cray hardware using the Cray compiler is 1.5-2 times faster than the coarray code on the same hardware. The Intel compiler implements coarrays atop Intel's MPI library with the result apparently being 2-2.5 times slower than manually coded MPI despite exhibiting nearly linear scaling efficiency. As compilers mature and further improvements to coarrays comes in Fortran 2015, we expect this performance gap to narrow.
C1 [Haveraaen, Magne] Univ Bergen, Dept Informat, N-5020 Bergen, Norway.
[Morris, Karla] Sandia Natl Labs, Livermore, CA 94550 USA.
[Rouson, Damian; Carson, Clayton] Stanford Univ, Stanford, CA 94305 USA.
[Radhakrishnan, Hari] EXA High Performance Comp, CY-1087 Nicosia, Cyprus.
RP Morris, K (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
EM knmorri@sandia.gov
FU Research Council of Norway; Sandia National Laboratories; Office of
Science of the US Department of Energy [DE-AC02-05CH11231]; National
Science Foundation, Office of Cyber Infrastructure, "MRI-R2: Acquisition
of an Applied Computational Instrument for Scientific Synthesis (ACISS)"
[OCI-0960354]; National Nuclear Security Administration
[DE-AC04-94-AL85000]
FX Thanks are due to JimXia (IBM Canada Lab) for developing the Burgers 1D
solver and Sameer Shende (University of Oregon) for help with TAU. This
research is financed in part by the Research Council of Norway. This
research was also supported by Sandia National Laboratories, a
multiprogram laboratory operated by Sandia Corporation, a Lockheed
Martin Company, for the National Nuclear Security Administration under
contract DE-AC04-94-AL85000. This work 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. This work also used resources from the ACISS cluster
at the University of Oregon acquired by a Major Research Instrumentation
grant from the National Science Foundation, Office of Cyber
Infrastructure, "MRI-R2: Acquisition of an Applied Computational
Instrument for Scientific Synthesis (ACISS)," Grant no. OCI-0960354.
NR 21
TC 0
Z9 0
U1 3
U2 6
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1058-9244
EI 1875-919X
J9 SCI PROGRAMMING-NETH
JI Sci. Program.
PY 2015
AR 942059
DI 10.1155/2015/942059
PG 14
WC Computer Science, Software Engineering
SC Computer Science
GA CJ9XC
UT WOS:000355855600001
ER
PT J
AU Nanthaamornphong, A
Carver, J
Morris, K
Filippone, S
AF Nanthaamornphong, Aziz
Carver, Jeffrey
Morris, Karla
Filippone, Salvatore
TI Extracting UML Class Diagrams from Object-Oriented Fortran: ForUML
SO SCIENTIFIC PROGRAMMING
LA English
DT Article
ID PROGRAM COMPREHENSION; SOFTWARE; CODE
AB Many scientists who implement computational science and engineering software have adopted the object-oriented (OO) Fortran paradigm. One of the challenges faced by OO Fortran developers is the inability to obtain high level software design descriptions of existing applications. Knowledge of the overall software design is not only valuable in the absence of documentation, it can also serve to assist developers with accomplishing different tasks during the software development process, especially maintenance and refactoring. The software engineering community commonly uses reverse engineering techniques to deal with this challenge. A number of reverse engineering-based tools have been proposed, but few of them can be applied to OO Fortran applications. In this paper, we propose a software tool to extract unified modeling language (UML) class diagrams from Fortran code. The UML class diagram facilitates the developers' ability to examine the entities and their relationships in the software system. The extracted diagrams enhance software maintenance and evolution. The experiments carried out to evaluate the proposed tool show its accuracy and a few of the limitations.
C1 [Nanthaamornphong, Aziz] Prince Songkla Univ, Dept Informat & Commun Technol, Phuket 83120, Thailand.
[Carver, Jeffrey] Univ Alabama, Dept Comp Sci, Tuscaloosa, AL 35487 USA.
[Morris, Karla] Sandia Natl Labs, Livermore, CA 94550 USA.
[Filippone, Salvatore] Univ Roma Tor Vergata, Dept Civil & Comp Engn, I-00173 Rome, Italy.
RP Nanthaamornphong, A (reprint author), Prince Songkla Univ, Dept Informat & Commun Technol, Phuket Campus, Phuket 83120, Thailand.
EM aziz.nantha@gmail.com
OI Filippone, Salvatore/0000-0002-5859-7538
NR 51
TC 0
Z9 0
U1 1
U2 6
PU HINDAWI PUBLISHING CORP
PI NEW YORK
PA 315 MADISON AVE 3RD FLR, STE 3070, NEW YORK, NY 10017 USA
SN 1058-9244
EI 1875-919X
J9 SCI PROGRAMMING-NETH
JI Sci. Program.
PY 2015
AR 421816
DI 10.1155/2015/421816
PG 15
WC Computer Science, Software Engineering
SC Computer Science
GA CJ9XE
UT WOS:000355855800001
ER
PT J
AU Radhakrishnan, H
Rouson, DWI
Morris, K
Shende, S
Kassinos, SC
AF Radhakrishnan, Hari
Rouson, Damian W. I.
Morris, Karla
Shende, Sameer
Kassinos, Stavros C.
TI Using Coarrays to Parallelize Legacy Fortran Applications: Strategy and
Case Study
SO SCIENTIFIC PROGRAMMING
LA English
DT Article
AB This paper summarizes a strategy for parallelizing a legacy Fortran 77 programusing the object-oriented (OO) and coarray features that entered Fortran in the 2003 and 2008 standards, respectively. OO programming (OOP) facilitates the construction of an extensible suite of model-verification and performance tests that drive the development. Coarray parallel programming facilitates a rapid evolution from a serial application to a parallel application capable of running on multicore processors and many-core accelerators in shared and distributed memory. We delineate 17 code modernization steps used to refactor and parallelize the program and study the resulting performance. Our initial studies were done using the Intel Fortran compiler on a 32-core shared memory server. Scaling behavior was very poor, and profile analysis using TAU showed that the bottleneck in the performance was due to our implementation of a collective, sequential summation procedure. We were able to improve the scalability and achieve nearly linear speedup by replacing the sequential summation with a parallel, binary tree algorithm. We also tested the Cray compiler, which provides its own collective summation procedure. Intel provides no collective reductions. With Cray, the program shows linear speedup even in distributed-memory execution. We anticipate similar results with other compilers once they support the new collective procedures proposed for Fortran 2015.
C1 [Radhakrishnan, Hari] EXA High Performance Comp, CY-1087 Nicosia, Cyprus.
[Rouson, Damian W. I.] Stanford Univ, Stanford, CA 94305 USA.
[Morris, Karla] Sandia Natl Labs, Livermore, CA 94550 USA.
[Shende, Sameer] Univ Oregon, Eugene, OR 97403 USA.
[Kassinos, Stavros C.] Univ Cyprus, Computat Sci Lab UCY CompSci, CY-1678 Nicosia, Cyprus.
RP Rouson, DWI (reprint author), Stanford Univ, Stanford, CA 94305 USA.
EM damian@rouson.net
RI Kassinos, Stavros/B-6404-2016
OI Kassinos, Stavros/0000-0002-3501-3851
FU European Commission Marie Curie ToK-DEV grant [MTKDCT-2004-014199];
Cyprus Research Promotion Foundation's Framework Programme for Research,
Technological Development and Innovation [TPiE/PiLambdaHPO/0609(BE)/11];
Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231];
National Science Foundation, Office of Cyber Infrastructure, "MRI-R2:
Acquisition of an Applied Computational Instrument for Scientific
Synthesis (ACISS)," [OCI-0960354]; Sandia National Laboratories a
multiprogram laboratory; Lockheed Martin Company [DE-AC04-94-AL85000];
New Mexico Small Business Administration; Office of Naval Research
FX The initial code refactoring was performed at the University of Cyprus
with funding from the European Commission Marie Curie ToK-DEV grant
(Contract MTKDCT-2004-014199). Part of this work was also supported by
the Cyprus Research Promotion Foundation's Framework Programme for
Research, Technological Development and Innovation 2009-2010 (Delta E
Sigma MH 2009-2010) under Grant T Pi E/Pi Lambda HPO/0609(BE)/11. This
work 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. This work
also used hardware resources from the ACISS cluster at the University of
Oregon acquired by a Major Research Instrumentation grant from the
National Science Foundation, Office of Cyber Infrastructure, "MRI-R2:
Acquisition of an Applied Computational Instrument for Scientific
Synthesis (ACISS)," Grant no. OCI-0960354. This research was also
supported by Sandia National Laboratories a multiprogram laboratory
operated by Sandia Corporation, a Lockheed Martin Company, for the
National Nuclear Security Administration under Contract
DE-AC04-94-AL85000. Portions of the Sandia contribution to this work
were funded by the New Mexico Small Business Administration and the
Office of Naval Research.
NR 9
TC 0
Z9 0
U1 0
U2 2
PU HINDAWI PUBLISHING CORP
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1058-9244
EI 1875-919X
J9 SCI PROGRAMMING-NETH
JI Sci. Program.
PY 2015
AR 904983
DI 10.1155/2015/904983
PG 12
WC Computer Science, Software Engineering
SC Computer Science
GA CJ9XA
UT WOS:000355855400001
ER
PT S
AU Cattaneo, A
Bossert, JA
Guzman, C
Haaker, A
Gupta, G
Mohite, A
Dumont, JH
Purdy, GM
Miller, KA
Marchi, AN
Farrar, CR
Mascarenas, DDL
AF Cattaneo, A.
Bossert, Jason A.
Guzman, Christian
Haaker, Axel
Gupta, Gautam
Mohite, Aditya
Dumont, Joseph H.
Purdy, Geraldine M.
Miller, Karen A.
Marchi, Alexandria N.
Farrar, Charles R.
Mascarenas, David D. L.
BE Lynch, JP
Wang, KW
Sohn, H
TI A remote-readable graphite oxide (GO) based tamper-evident seal with
self-reporting and self-authentication capabilities
SO SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND
AEROSPACE SYSTEMS 2015
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Sensors and Smart Structures Technologies for Civil,
Mechanical, and Aerospace Systems
CY MAR 09-12, 2015
CL San Diego, CA
SP SPIE, Amer Soc Mech Engineers
DE tamper-evident seal; sensing skin; graphite oxide; compressed-sensing;
crack detection and location; embedded-system; encryption/authentication
low-power device
ID GRAPHENE OXIDE; TRANSPARENT; FILMS
AB The blossoming of sensing solutions based on the use of carbon materials and the pervasive exploration of compressed sensing (CS) for developing structural health monitoring applications suggest the possibility of combining these two research areas in a novel family of smart structures. Specifically, the authors propose an architecture for security-related applications that leverages the tunable electrical properties of a graphite oxide (GO) paper-based tamper-evident seal with a compressed-sensing (CS) encryption/authentication protocol. The electrical properties of GO are sensitive to the traditional methods that are commonly used to remove and replace paper-based tamper-evident seals (mechanical lifting, solvents, heat/cold temperature changes, steam). The sensitivity of the electro-chemical properties of GO to such malicious insults is exploited in this architecture. This is accomplished by using GO paper to physically realize the measurement matrix required to implement a compressive sampling procedure. The proposed architecture allows the seal to characterize its integrity, while simultaneously providing an encrypted/authentication feature making the seal difficult to counterfeit, spoof, or remove/replace. Traditional digital encryption/authentication techniques are often bit sensitive making them difficult to implement as part of a measurement process. CS is not bit sensitive and can tolerate deviation caused by noise and allows the seal to be robust with respect to environmental changes that can affect the electrical properties of the GO paper during normal operation. Further, the reduced amount of samples that need to be stored and transmitted makes the proposed solution highly attractive for power constrained applications where the seal is interrogated by a remote reader.
C1 [Cattaneo, A.; Marchi, Alexandria N.; Farrar, Charles R.; Mascarenas, David D. L.] Los Alamos Natl Lab, Engn Inst, Los Alamos, NM 87544 USA.
[Bossert, Jason A.; Gupta, Gautam; Mohite, Aditya; Dumont, Joseph H.; Purdy, Geraldine M.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
[Guzman, Christian] Prairie View A&M Univ, Thermal Sci Res Ctr, Prairie View, TX 77446 USA.
[Haaker, Axel] Univ New Mexico, Dept Mech Engn, Albuquerque, NM 87131 USA.
[Miller, Karen A.] Los Alamos Natl Lab, Safeguards Sci & Technol, Los Alamos, NM 87545 USA.
RP Cattaneo, A (reprint author), Los Alamos Natl Lab, Engn Inst, MS T001,POB 1663, Los Alamos, NM 87544 USA.
EM cattaneo@lanl.gov
OI Farrar, Charles/0000-0001-6533-6996
NR 34
TC 0
Z9 0
U1 2
U2 9
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-538-4
J9 PROC SPIE
PY 2015
VL 9435
AR 94351K
DI 10.1117/12.2083030
PG 15
WC Engineering, Aerospace; Engineering, Civil; Engineering, Mechanical;
Remote Sensing; Optics
SC Engineering; Remote Sensing; Optics
GA BC8JE
UT WOS:000355726100046
ER
PT S
AU El-Kady, I
AF El-Kady, Ihab
BE Peters, KJ
TI Phonon-based scalable quantum computing and sensing (Presentation Video)
SO SMART SENSOR PHENOMENA, TECHNOLOGY, NETWORKS, AND SYSTEMS INTEGRATION
2015
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Smart Sensor Phenomena, Technology, Networks, and Systems
Integration
CY MAR 09-10, 2015
CL San Diego, CA
SP SPIE, Amer Soc Mech Engineers
C1 Sandia Natl Labs, Livermore, CA 94550 USA.
RP El-Kady, I (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
NR 0
TC 0
Z9 0
U1 2
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-539-1
J9 PROC SPIE
PY 2015
VL 9436
AR 94360O
DI 10.1117/12.2175914
PG 1
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC8GN
UT WOS:000355666900017
ER
PT J
AU Metere, A
Sarman, S
Oppelstrup, T
Dzugutov, M
AF Metere, Alfredo
Sarman, Sten
Oppelstrup, Tomas
Dzugutov, Mikhail
TI Formation of a columnar liquid crystal in a simple one-component system
of particles
SO SOFT MATTER
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATION; COMPUTER-SIMULATION; HEAT-CONDUCTION
AB We report a molecular dynamics simulation demonstrating that a columnar liquid crystal, commonly formed by disc-shaped molecules, can be formed by identical particles interacting via a spherically symmetric potential. Upon isochoric cooling from a low-density isotropic liquid state the simulated system underwent a weak first order phase transition which produced a liquid crystal phase composed of parallel particle columns arranged in a hexagonal pattern in the plane perpendicular to the column axis. The particles within columns formed a liquid structure and demonstrated a significant intracolumn diffusion. Further cooling resulted in another first-order transition whereby the column structure became periodically ordered in three dimensions transforming the liquid-crystal phase into a crystal. This result is the first observation of a columnar liquid crystal formation in a simple one-component system of particles. Its conceptual significance is in that it demonstrated that liquid crystals that have so far only been produced in systems of anisometric molecules can also be formed by mesoscopic soft-matter and colloidal systems of spherical particles with appropriately tuned interatomic potential.
C1 [Metere, Alfredo] Stockholm Univ, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden.
[Sarman, Sten] Stockholm Univ, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden.
[Oppelstrup, Tomas] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Dzugutov, Mikhail] Royal Inst Technol, Dept Math, S-10044 Stockholm, Sweden.
[Dzugutov, Mikhail] Royal Inst Technol, Ctr Parallel Comp, S-10044 Stockholm, Sweden.
RP Metere, A (reprint author), Stockholm Univ, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden.
EM alfredo.metere@mmk.su.se
FU Swedish E-Science Research Foundation (SERC); Swedish National Research
Council (VR)
FX We thank Dr B. Sadigh for very useful discussions. This study was
supported by the Swedish E-Science Research Foundation (SERC). Funding
from the Swedish National Research Council (VR) is gratefully
acknowledged. This work has been approved for release under Lawrence
Livermore Release No. LLNL-JRNL-656140.
NR 35
TC 1
Z9 1
U1 1
U2 12
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
EI 1744-6848
J9 SOFT MATTER
JI Soft Matter
PY 2015
VL 11
IS 23
BP 4606
EP 4613
DI 10.1039/c5sm00570a
PG 8
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA CJ8FP
UT WOS:000355735900007
PM 25959363
ER
PT S
AU Hoegh, K
Khazanovich, L
Ferraro, C
Clayton, D
AF Hoegh, Kyle
Khazanovich, Lev
Ferraro, Chris
Clayton, Dwight
BE Chimenti, DE
Bond, LJ
TI Ultrasonic Linear Array Validation via Concrete Test Blocks
SO 41ST ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE
EVALUATION, VOL 34
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 41st Annual Review of Progress in Quantitative Nondestructive Evaluation
(QNDE)
CY JUL 20-25, 2014
CL Boise, ID
SP Ctr Nondestruct Evaluat, Quantitat Nondestruct Evaluat Programs, Amer Soc Nondestruct Testing, World Federat NDE Ctr, Natl Sci Fdn, Ind Univ Co Operat Res Ctr Program
AB Oak Ridge National Laboratory (ORNL) comparatively evaluated the ability of a number of NDE techniques to generate an image of the volume of 6.5' X 5.0' X 10 '' concrete specimens fabricated at the Florida Department of Transportation (FDOT) NDE Validation Facility in Gainesville, Florida. These test blocks were fabricated to test the ability of various NDE methods to characterize various placements and sizes of rebar as well as simulated cracking and non-consolidation flaws. The first version of the ultrasonic linear array device, MIRA [version 1], was one of 7 different NDE equipment used to characterize the specimens. This paper deals with the ability of this equipment to determine subsurface characterizations such as reinforcing steel relative size, concrete thickness, irregularities, and inclusions using Kirchhoff-based migration techniques. The ability of individual synthetic aperture focusing technique (SAFT) B-scan cross sections resulting from self-contained scans are compared with various processing, analysis, and interpretation methods using the various features fabricated in the specimens for validation. The performance is detailed, especially with respect to the limitations and implications for evaluation of a thicker, more heavily reinforced concrete structures.
C1 [Hoegh, Kyle; Khazanovich, Lev] Univ Minnesota, Dept Civil Environm & Geoengn, Minneapolis, MN 55455 USA.
[Clayton, Dwight] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Hoegh, K (reprint author), Univ Minnesota, Dept Civil Environm & Geoengn, 500 Pillsbury Dr SE, Minneapolis, MN 55455 USA.
EM hoeg0021@umn.edu
NR 10
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1292-7
J9 AIP CONF PROC
PY 2015
VL 1650
BP 83
EP 93
DI 10.1063/1.4914597
PG 11
WC Physics, Applied
SC Physics
GA BC7JI
UT WOS:000354938100008
ER
PT S
AU Albright, A
Clayton, D
AF Albright, Austin
Clayton, Dwight
BE Chimenti, DE
Bond, LJ
TI The Benefits of Using Time-Frequency Analysis with Synthetic Aperture
Focusing Technique
SO 41ST ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE
EVALUATION, VOL 34
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 41st Annual Review of Progress in Quantitative Nondestructive Evaluation
(QNDE)
CY JUL 20-25, 2014
CL Boise, ID
SP Ctr Nondestruct Evaluat, Quantitat Nondestruct Evaluat Programs, Amer Soc Nondestruct Testing, World Federat NDE Ctr, Natl Sci Fdn, Ind Univ Co Operat Res Ctr Program
ID WAVELETS
AB Improvements in detection and resolution are always desired and needed. There are various instruments available for the inspection of concrete structures that can be used with confidence for detecting different defects. However, more often than not that confidence is heavily dependent on the experience of the operator rather than the clear, objective discernibility of the output of the instrument. The challenge of objective discernment is amplified when the concrete structures contain multiple layers of reinforcement, are of significant thickness, or both, such as concrete structures in nuclear power plants. We seek to improve and extend the usefulness of results produced using the synthetic aperture focusing technique (SAFT) on data collected from thick, complex concrete structures. A secondary goal is to improve existing SAFT results, with regards to repeatedly and objectively identifying defects and/or internal structure of concrete structures. Towards these goals, we are applying the time-frequency technique of wavelet packet decomposition and reconstruction using a mother wavelet that possesses the exact reconstruction property. However, instead of analyzing the coefficients of each decomposition node, we select and reconstruct specific nodes based on the frequency band it contains to produce a frequency band specific time-series representation. SAFT is then applied to these frequency specific reconstructions allowing SAFT to be used to visualize the reflectivity of a frequency band and that band's interaction with the contents of the concrete structure. We apply our technique to data sets collected using a commercial, ultrasonic linear array (MIRA) from two 1.5m x 2m x 25cm concrete test specimens. One specimen contains multiple layers of rebar. The other contains honeycomb, crack, and rebar bonding defect analogs. This approach opens up a multitude of possibilities for improved detection, readability, and overall improved objectivity. We will focus on improved defect/reinforcement isolation in thick and multilayered reinforcement environments. Additionally, the ability to empirically explore the possibility of a frequency-band-defect-type relationship or sensitivity becomes available.
C1 [Albright, Austin; Clayton, Dwight] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Albright, A (reprint author), Oak Ridge Natl Lab, One Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM albrightap@ornl.gov; claytonda@ornl.gov
RI Albright, Austin/C-1948-2016
OI Albright, Austin/0000-0002-2129-4074
NR 7
TC 2
Z9 2
U1 1
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1292-7
J9 AIP CONF PROC
PY 2015
VL 1650
BP 94
EP 103
DI 10.1063/1.4914598
PG 10
WC Physics, Applied
SC Physics
GA BC7JI
UT WOS:000354938100009
ER
PT S
AU Lacy, JM
Smith, JA
Rabin, BH
AF Lacy, Jeffrey M.
Smith, James A.
Rabin, Barry H.
BE Chimenti, DE
Bond, LJ
TI Developing a Laser Shockwave Model for Characterizing Diffusion Bonded
Interfaces
SO 41ST ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE
EVALUATION, VOL 34
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 41st Annual Review of Progress in Quantitative Nondestructive Evaluation
(QNDE)
CY JUL 20-25, 2014
CL Boise, ID
SP Ctr Nondestruct Evaluat, Quantitat Nondestruct Evaluat Programs, Amer Soc Nondestruct Testing, World Federat NDE Ctr, Natl Sci Fdn, Ind Univ Co Operat Res Ctr Program
ID SPALLATION TECHNIQUE; STRENGTH; PULSE
AB The US National Nuclear Security Agency has a Global Threat Reduction Initiative (GTRI) with the goal of reducing the worldwide use of high-enriched uranium (HEU). A salient component of that initiative is the conversion of research reactors from HEU to low enriched uranium (LEU) fuels. An innovative fuel is being developed to replace HEU in high-power research reactors. The new LEU fuel is a monolithic fuel made from a U-Mo alloy foil encapsulated in Al-6061 cladding. In order to support the fuel qualification process, the Laser Shockwave Technique (LST) is being developed to characterize the clad-clad and fuel-clad interface strengths in fresh and irradiated fuel plates. LST is a non-contact method that uses lasers for the generation and detection of large amplitude acoustic waves to characterize interfaces in nuclear fuel plates. However, because the deposition of laser energy into the containment layer on a specimen's surface is intractably complex, the shock wave energy is inferred from the surface velocity measured on the backside of the fuel plate and the depth of the impression left on the surface by the high pressure plasma pulse created by the shock laser. To help quantify the stresses generated at the interfaces, a finite element method (FEM) model is being utilized. This paper will report on initial efforts to develop and validate the model by comparing numerical and experimental results for back surface velocities and front surface depressions in a single aluminum plate representative of the fuel cladding.
C1 [Lacy, Jeffrey M.; Smith, James A.; Rabin, Barry H.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Lacy, JM (reprint author), Idaho Natl Lab, Idaho Falls, ID 83415 USA.
EM Jeffrey.Lacy@inl.gov
NR 19
TC 0
Z9 0
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1292-7
J9 AIP CONF PROC
PY 2015
VL 1650
BP 1376
EP 1385
DI 10.1063/1.4914752
PG 10
WC Physics, Applied
SC Physics
GA BC7JI
UT WOS:000354938100163
ER
PT S
AU Agarwal, V
Tawfik, MS
Smith, JA
AF Agarwal, Vivek
Tawfik, Magdy S.
Smith, James A.
BE Chimenti, DE
Bond, LJ
TI Acoustic Emission Signal Processing Technique to Characterize Reactor
In-Pile Phenomena
SO 41ST ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE
EVALUATION, VOL 34
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 41st Annual Review of Progress in Quantitative Nondestructive Evaluation
(QNDE)
CY JUL 20-25, 2014
CL Boise, ID
SP Ctr Nondestruct Evaluat, Quantitat Nondestruct Evaluat Programs, Amer Soc Nondestruct Testing, World Federat NDE Ctr, Natl Sci Fdn, Ind Univ Co Operat Res Ctr Program
AB Existing and developing advanced sensor technologies and instrumentation will allow non-intrusive in-pile measurement of temperature, extension, and fission gases when coupled with advanced signal processing algorithms. The transmitted measured sensor signals from inside to the outside of containment structure are corrupted by noise and are attenuated, thereby reducing the signal strength and the signal-to-noise ratio. Identification and extraction of actual signal ( representative of an in-pile phenomenon) is a challenging and complicated process. In the paper, empirical mode decomposition technique is utilized to reconstruct actual sensor signal by partially combining intrinsic mode functions. Reconstructed signal will correspond to phenomena and/or failure modes occurring inside the reactor. In addition, it allows accurate non-intrusive monitoring and trending of in-pile phenomena.
C1 [Agarwal, Vivek] Idaho Natl Lab, Dept Human Factors Controls & Stat, Idaho Falls, ID 83415 USA.
[Tawfik, Magdy S.] Idaho Natl Lab, Nucl Sci & Technol Directorate, Idaho Falls, ID 83415 USA.
[Smith, James A.] Idaho Natl Lab, Dept Fuel Performance & Design, Idaho Falls, ID 83415 USA.
RP Agarwal, V (reprint author), Idaho Natl Lab, Dept Human Factors Controls & Stat, Idaho Falls, ID 83415 USA.
EM vivek.agarwal@inl.gov; magdy.tawfik@inl.gov; james.smith@inl.gov
NR 14
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1292-7
J9 AIP CONF PROC
PY 2015
VL 1650
BP 1468
EP 1475
DI 10.1063/1.4914764
PG 8
WC Physics, Applied
SC Physics
GA BC7JI
UT WOS:000354938100175
ER
PT S
AU Suter, JD
Ramuhalli, P
McCloy, JS
Xu, K
Hu, S
Li, Y
Jiang, W
Edwards, DJ
Schemer-Kohrn, AL
Johnson, BR
AF Suter, J. D.
Ramuhalli, P.
McCloy, J. S.
Xu, K.
Hu, S.
Li, Y.
Jiang, W.
Edwards, D. J.
Schemer-Kohrn, A. L.
Johnson, B. R.
BE Chimenti, DE
Bond, LJ
TI Meso-Scale Magnetic Signatures for Nuclear Reactor Steel Irradiation
Embrittlement Monitoring
SO 41ST ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE
EVALUATION, VOL 34
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 41st Annual Review of Progress in Quantitative Nondestructive Evaluation
(QNDE)
CY JUL 20-25, 2014
CL Boise, ID
SP Ctr Nondestruct Evaluat, Quantitat Nondestruct Evaluat Programs, Amer Soc Nondestruct Testing, World Federat NDE Ctr, Natl Sci Fdn, Ind Univ Co Operat Res Ctr Program
ID FORCE MICROSCOPY; FIELD; ALLOYS; FILMS
AB Verifying the structural integrity of passive components in light water and advanced reactors will be necessary to ensure safe, long-term operations of the existing U.S. nuclear fleet. This objective can be achieved through nondestructive condition monitoring techniques, which can be integrated with plant operations to quantify the 'state of health' of structural materials in real-time. While nondestructive methods for monitoring many classes of degradation (such as fatigue or stress corrosion cracking) are relatively advanced, this is not the case for degradation caused by irradiation. The development of nondestructive evaluation technologies for these types of degradation will require advanced materials characterization techniques and tools that enable comprehensive understanding of nuclear reactor material microstructural and behavioral changes under extreme operating environments. Irradiation-induced degradation of reactor steels causes changes in their microstructure that impacts their micro-magnetic properties. In this paper, we describe preliminary results of integrating advanced material characterization techniques with meso-scale computational models. In the future, this will help to provide an interpretive understanding of the state of degradation in structural materials. Microstructural data are presented from monocrystalline Fe and are correlated with variable-field magnetic force microscopy and micro-magnetic measurements. Ongoing research is focused on extending the measurements and models on thin films to gain insights into the structural state of irradiated materials and the resulting impact on magnetic properties. Preliminary conclusions from these correlations are presented, and next steps described.
C1 [Suter, J. D.; Ramuhalli, P.; Hu, S.; Li, Y.; Jiang, W.; Edwards, D. J.; Schemer-Kohrn, A. L.; Johnson, B. R.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[McCloy, J. S.; Xu, K.] Washington State Univ, Pullman, WA 99164 USA.
RP Ramuhalli, P (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA.
EM pradeep.ramuhalli@pnnl.gov; john.mccloy@wsu.edu
OI Suter, Jonathan/0000-0001-5709-6988
NR 26
TC 1
Z9 1
U1 1
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1292-7
J9 AIP CONF PROC
PY 2015
VL 1650
BP 1476
EP 1485
DI 10.1063/1.4914765
PG 10
WC Physics, Applied
SC Physics
GA BC7JI
UT WOS:000354938100176
ER
PT S
AU Reinhardt, B
Tittmann, B
Rempe, J
Daw, J
Kohse, G
Carpenter, D
Ames, M
Ostrovsky, Y
Ramuhalli, P
Montgomery, R
Chien, H
Wernsman, B
AF Reinhardt, Brian
Tittmann, Bernhard
Rempe, Joy
Daw, Joshua
Kohse, Gordon
Carpenter, David
Ames, Michael
Ostrovsky, Yakov
Ramuhalli, Pradeep
Montgomery, Robert
Chien, Hualte
Wernsman, Bernard
BE Chimenti, DE
Bond, LJ
TI Progress Towards Developing Neutron Tolerant Magnetostrictive and
Piezoelectric Transducers
SO 41ST ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE
EVALUATION, VOL 34
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 41st Annual Review of Progress in Quantitative Nondestructive Evaluation
(QNDE)
CY JUL 20-25, 2014
CL Boise, ID
SP Ctr Nondestruct Evaluat, Quantitat Nondestruct Evaluat Programs, Amer Soc Nondestruct Testing, World Federat NDE Ctr, Natl Sci Fdn, Ind Univ Co Operat Res Ctr Program
AB Current generation light water reactors (LWRs), sodium cooled fast reactors (SFRs), small modular reactors (SMRs), and next generation nuclear plants (NGNPs) produce harsh environments in and near the reactor core that can severely tax material performance and limit component operational life. To address this issue, several Department of Energy Office of Nuclear Energy (DOE-NE) research programs are evaluating the long duration irradiation performance of fuel and structural materials used in existing and new reactors. In order to maximize the amount of information obtained from Material Testing Reactor (MTR) irradiations, DOE is also funding development of enhanced instrumentation that will be able to obtain in-situ, real-time data on key material characteristics and properties, with unprecedented accuracy and resolution. Such data are required to validate new multi-scale, multi-physics modeling tools under development as part of a science-based, engineering driven approach to reactor development. It is not feasible to obtain high resolution/microscale data with the current state of instrumentation technology. However, ultrasound-based sensors offer the ability to obtain such data if it is demonstrated that these sensors and their associated transducers are resistant to high neutron flux, high gamma radiation, and high temperature. To address this need, the Advanced Test Reactor National Scientific User Facility (ATR-NSUF) is funding an irradiation, led by PSU, at the Massachusetts Institute of Technology Research Reactor to test the survivability of ultrasound transducers. As part of this effort, PSU and collaborators have designed, fabricated, and provided piezoelectric and magnetostrictive transducers that are optimized to perform in harsh, high flux, environments. Four piezoelectric transducers were fabricated with either aluminum nitride, zinc oxide, or bismuth titanate as the active element that were coupled to either Kovar or aluminum waveguides and two magnetostrictive transducers were fabricated with Remendur or Galfenol as the active elements. Pulse-echo ultrasonic measurements of these transducers are made insitu. This paper will present an overview of the test design including selection criteria for candidate materials and optimization of test assembly parameters, data obtained from both out-of-pile and in-pile testing at elevated temperatures, and an assessment based on initial data of the expected performance of ultrasonic devices in irradiation conditions.
C1 [Reinhardt, Brian; Tittmann, Bernhard] Penn State Univ, University Pk, PA 16802 USA.
[Rempe, Joy; Daw, Joshua] Idaho Natl Lab, Idaho Falls, ID USA.
[Kohse, Gordon; Carpenter, David; Ames, Michael; Ostrovsky, Yakov] MIT, Cambridge, MA 02139 USA.
[Ramuhalli, Pradeep; Montgomery, Robert] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Chien, Hualte] Argonne Natl Lab, Argonne, IL 60439 USA.
[Wernsman, Bernard] Bechtel Marine Prop Corp, West Mifflin, PA USA.
RP Reinhardt, B (reprint author), Penn State Univ, University Pk, PA 16802 USA.
NR 18
TC 0
Z9 0
U1 2
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1292-7
J9 AIP CONF PROC
PY 2015
VL 1650
BP 1512
EP 1520
DI 10.1063/1.4914769
PG 9
WC Physics, Applied
SC Physics
GA BC7JI
UT WOS:000354938100180
ER
PT S
AU Smith, JA
Kotter, D
Garrett, SL
Ali, RA
AF Smith, James A.
Kotter, Dale
Garrett, Steven L.
Ali, Randall A.
BE Chimenti, DE
Bond, LJ
TI Designing A TAC Thermometer from a VHTR Graphite Structure
SO 41ST ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE
EVALUATION, VOL 34
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 41st Annual Review of Progress in Quantitative Nondestructive Evaluation
(QNDE)
CY JUL 20-25, 2014
CL Boise, ID
SP Ctr Nondestruct Evaluat, Quantitat Nondestruct Evaluat Programs, Amer Soc Nondestruct Testing, World Federat NDE Ctr, Natl Sci Fdn, Ind Univ Co Operat Res Ctr Program
AB The interior of a nuclear reactor presents a particularly harsh and challenging environment for both sensors and telemetry due to high temperatures and high fluxes of energetic and ionizing particles among the radioactive decay products. Very High Temperature Reactors are pushing the in core temperatures even higher. A unique sensing approach will be discussed to address the necessary high temperature measurements. Thermoacoustic thermometry exploits high temperatures and uses materials that are immune to the effects of ionizing radiation to create a temperature sensor that is self-powered and wireless. In addition, the form-factor for the Thermoacoustic Thermometer (TACT) can be designed to be integrated within common in-pile structures. There are no physical moving parts required for TACT and the sensor is self-powered, as it uses the nuclear fuel for its heat source. TACT data will be presented from a laboratory prototype mimicking the design necessary for a VHTR graphite structure
C1 [Smith, James A.; Kotter, Dale] Idaho Natl Lab, Fuel Performance & Design, Idaho Falls, ID 83415 USA.
[Garrett, Steven L.; Ali, Randall A.] Penn State Univ, Grad Program Acoust, State Coll, PA 16804 USA.
RP Smith, JA (reprint author), Idaho Natl Lab, Fuel Performance & Design, Idaho Falls, ID 83415 USA.
EM James.Smith@INL.gov
NR 8
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1292-7
J9 AIP CONF PROC
PY 2015
VL 1650
BP 1521
EP 1525
DI 10.1063/1.4914770
PG 5
WC Physics, Applied
SC Physics
GA BC7JI
UT WOS:000354938100181
ER
PT J
AU Chekanov, SV
AF Chekanov, S. V.
TI HepSim: A Repository with Predictions for High-Energy Physics
Experiments
SO ADVANCES IN HIGH ENERGY PHYSICS
LA English
DT Article
ID LHC
AB A file repository for calculations of cross sections and kinematic distributions using Monte Carlo generators for high-energy collisions is discussed. The repository is used to facilitate effective preservation and archiving of data from theoretical calculations and for comparisons with experimental data. The HepSim data library is publicly accessible and includes a number of Monte Carlo event samples with Standard Model predictions for current and future experiments. The HepSim project includes a software package to automate the process of downloading and viewing online Monte Carlo event samples. Data streaming over a network for end-user analysis is discussed.
C1 Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA.
RP Chekanov, SV (reprint author), Argonne Natl Lab, HEP Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM chekanov@anl.gov
FU Argonne, a U.S. Department of Energy Office of Science laboratory
[DE-AC02-06CH11357]; Office of Science of the U.S. Department of Energy
[DE-AC02-06CH11357]
FX The author would like to thank J. Proudfoot and E. May for discussion
and validation. The submitted paper has been created by UChicago
Argonne, LLC, Operator of Argonne National Laboratory ("Argonne").
Argonne, a U.S. Department of Energy Office of Science laboratory, is
operated under Contract no. DE-AC02-06CH11357. This research used
resources of the Argonne Leadership Computing Facility at Argonne
National Laboratory, which is supported by the Office of Science of the
U.S. Department of Energy under contract DE-AC02-06CH11357. A fraction
of the simulated event samples presented in this paper were generated
using the ATLAS Connect virtual cluster service.
NR 29
TC 1
Z9 1
U1 0
U2 1
PU HINDAWI PUBLISHING CORP
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-7357
EI 1687-7365
J9 ADV HIGH ENERGY PHYS
JI Adv. High. Energy Phys.
PY 2015
AR 136093
DI 10.1155/2015/136093
PG 7
WC Physics, Particles & Fields
SC Physics
GA CI9RZ
UT WOS:000355108800001
ER
PT J
AU Lambert, TN
Vigil, JA
White, SE
Davis, DJ
Limmer, SJ
Burton, PD
Coker, EN
Beechem, TE
Brumbach, MT
AF Lambert, Timothy N.
Vigil, Julian A.
White, Suzanne E.
Davis, Danae J.
Limmer, Steven J.
Burton, Patrick D.
Coker, Eric N.
Beechem, Thomas E.
Brumbach, Michael T.
TI Electrodeposited NixCo3-xO4 nanostructured films as bifunctional oxygen
electrocatalysts
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID BI-FUNCTIONAL ELECTROCATALYST; NONPRECIOUS METAL CATALYST; AIR BATTERY
APPLICATIONS; REDUCTION REACTION; NANOWIRE ARRAYS; WATER OXIDATION;
REDUCTION/EVOLUTION REACTIONS; ALKALINE ELECTROLYTE; EVOLUTION;
EFFICIENT
AB Nanostructured NixCo3-xO4 films serve as effective electrocatalysts for both the oxygen reduction and oxygen evolution reactions in alkaline electrolyte.
C1 [Lambert, Timothy N.; Vigil, Julian A.; White, Suzanne E.; Davis, Danae J.] Sandia Natl Labs, Dept Mat Devices & Energy Technol, Albuquerque, NM 87185 USA.
[Limmer, Steven J.] Sandia Natl Labs, Dept Phys Based Microsyst, Albuquerque, NM 87185 USA.
[Burton, Patrick D.] Sandia Natl Labs, Dept Chem & Biol Syst, Albuquerque, NM 87185 USA.
[Coker, Eric N.] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87185 USA.
[Beechem, Thomas E.] Sandia Natl Labs, Dept Nanoscale Sci, Albuquerque, NM 87185 USA.
[Brumbach, Michael T.] Sandia Natl Labs, Dept Mat Characterizat & Performance, Albuquerque, NM 87185 USA.
RP Lambert, TN (reprint author), Sandia Natl Labs, Dept Mat Devices & Energy Technol, POB 5800, Albuquerque, NM 87185 USA.
EM tnlambe@sandia.gov
FU Sandia National Laboratories: Sandia is a multi-program laboratory -
United States Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]
FX This work was supported by Sandia National Laboratories: Sandia is a
multi-program 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. Ms
Bonnie McKenzie and Dr Mark Rodriguez are thanked for technical
assistance.
NR 39
TC 21
Z9 21
U1 8
U2 55
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 46
BP 9511
EP 9514
DI 10.1039/c5cc02262b
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CJ2WP
UT WOS:000355345700022
PM 25967276
ER
PT J
AU Lauritzen, PH
Conley, AJ
Lamarque, JF
Vitt, F
Taylor, MA
AF Lauritzen, P. H.
Conley, A. J.
Lamarque, J-F
Vitt, F.
Taylor, M. A.
TI The terminator "toy" chemistry test: a simple tool to assess errors in
transport schemes
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID 2-DIMENSIONAL LINEAR TRANSPORT; LAGRANGIAN ADVECTION SCHEME; STEP
INTEGRATION METHODS; SHALLOW-WATER EQUATIONS; TEST-CASE SUITE; MOISTURE
TRANSPORT; DYNAMICAL CORE; SPHERE; MODEL; RADICALS
AB This test extends the evaluation of transport schemes from prescribed advection of inert scalars to reactive species. The test consists of transporting two interacting chemical species in the Nair and Lauritzen 2-D idealized flow field. The sources and sinks for these two species are given by a simple, but non-linear, "toy" chemistry that represents combination (X + X -> X-2) and dissociation (X-2 -> X + X). This chemistry mimics photolysis-driven conditions near the solar terminator, where strong gradients in the spatial distribution of the species develop near its edge. Despite the large spatial variations in each species, the weighted sum X-T = X + 2X(2) should always be preserved at spatial scales at which molecular diffusion is excluded. The terminator test demonstrates how well the advection-transport scheme preserves linear correlations. Chemistry-transport (physics-dynamics) coupling can also be studied with this test. Examples of the consequences of this test are shown for illustration.
C1 [Lauritzen, P. H.; Conley, A. J.; Lamarque, J-F; Vitt, F.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Taylor, M. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Lauritzen, PH (reprint author), Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA.
EM pel@ucar.edu
RI Lamarque, Jean-Francois/L-2313-2014
OI Lamarque, Jean-Francois/0000-0002-4225-5074
FU National Science Foundation (NSF); Department of Energy (DOE) Office of
Biological & Environmental Research [SC0006747]; Department of Energy
Office of Biological and Environmental Research [12-015335]
FX NCAR is sponsored by the National Science Foundation (NSF).
Jean-Francois Lamarque, Andrew Conley and Francis Vitt were partially
funded by the Department of Energy (DOE) Office of Biological &
Environmental Research under grant number SC0006747. Mark Taylor was
supported by the Department of Energy Office of Biological and
Environmental Research, work package 12-015335, "Applying
Computationally Efficient Schemes for BioGeochemical Cycles". Thanks to
Oksana Guba for discussions on the CAM-SE limiter. The authors are
grateful to Michael Prather for the many discussions on simplified
chemistry. We thank the reviewers for their constructive comments that
greatly improved the manuscript.
NR 47
TC 2
Z9 2
U1 1
U2 2
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2015
VL 8
IS 5
BP 1299
EP 1313
DI 10.5194/gmd-8-1299-2015
PG 15
WC Geosciences, Multidisciplinary
SC Geology
GA CJ2BK
UT WOS:000355289000003
ER
PT J
AU Tilmes, S
Lamarque, JF
Emmons, LK
Kinnison, DE
Ma, PL
Liu, X
Ghan, S
Bardeen, C
Arnold, S
Deeter, M
Vitt, F
Ryerson, T
Elkins, JW
Moore, F
Spackman, JR
Martin, MV
AF Tilmes, S.
Lamarque, J-F
Emmons, L. K.
Kinnison, D. E.
Ma, P-L
Liu, X.
Ghan, S.
Bardeen, C.
Arnold, S.
Deeter, M.
Vitt, F.
Ryerson, T.
Elkins, J. W.
Moore, F.
Spackman, J. R.
Martin, M. Val
TI Description and evaluation of tropospheric chemistry and aerosols in the
Community Earth System Model (CESM1.2)
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID ATMOSPHERIC CHEMISTRY; CLIMATE MODEL; GLOBAL BUDGET; OZONE;
REPRESENTATION; TRANSPORT; PREINDUSTRIAL; VARIABILITY; LIFETIME; PACIFIC
AB The Community Atmosphere Model (CAM), version 5, is now coupled to extensive tropospheric and stratospheric chemistry, called CAM5-chem, and is available in addition to CAM4-chem in the Community Earth System Model (CESM) version 1.2. The main focus of this paper is to compare the performance of configurations with internally derived "free running" (FR) meteorology and "specified dynamics" (SD) against observations from surface, aircraft, and satellite, as well as understand the origin of the identified differences. We focus on the representation of aerosols and chemistry. All model configurations reproduce tropospheric ozone for most regions based on in situ and satellite observations. However, shortcomings exist in the representation of ozone precursors and aerosols. Tropospheric ozone in all model configurations agrees for the most part with ozonesondes and satellite observations in the tropics and the Northern Hemisphere within the variability of the observations. Southern hemispheric tropospheric ozone is consistently underestimated by up to 25 %. Differences in convection and stratosphere to troposphere exchange processes are mostly responsible for differences in ozone in the different model configurations. Carbon monoxide (CO) and other volatile organic compounds are largely underestimated in Northern Hemisphere mid-latitudes based on satellite and aircraft observations. Nitrogen oxides (NOx) are biased low in the free tropical troposphere, whereas peroxyacetyl nitrate (PAN) is overestimated in particular in high northern latitudes. The present-day methane lifetime estimates are compared among the different model configurations. These range between 7.8 years in the SD configuration of CAM5-chem and 8.8 years in the FR configuration of CAM4-chem and are therefore underestimated compared to observational estimations. We find that differences in tropospheric aerosol surface area between CAM4 and CAM5 play an important role in controlling the burden of the tropical tropospheric hydroxyl radical (OH), which causes differences in tropical methane lifetime of about half a year between CAM4-chem and CAM5-chem. In addition, different distributions of NOx from lightning explain about half of the difference between SD and FR model versions in both CAM4-chem and CAM5-chem. Remaining differences in the tropical OH burden are due to enhanced tropical ozone burden in SD configurations compared to the FR versions, which are not only caused by differences in chemical production or loss but also by transport and mixing. For future studies, we recommend the use of CAM5-chem configurations, due to improved aerosol description and inclusion of aerosol-cloud interactions. However, smaller tropospheric surface area density in the current version of CAM5-chem compared to CAM4-chem results in larger oxidizing capacity in the troposphere and therefore a shorter methane lifetime.
C1 [Tilmes, S.; Lamarque, J-F; Emmons, L. K.; Kinnison, D. E.; Bardeen, C.; Deeter, M.; Vitt, F.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Ma, P-L; Ghan, S.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Liu, X.] Univ Wyoming, Laramie, WY 82071 USA.
[Arnold, S.] Univ Leeds, Sch Earth & Environm, Leeds, W Yorkshire, England.
[Ryerson, T.; Elkins, J. W.; Moore, F.; Spackman, J. R.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Spackman, J. R.] Sci & Technol Corp, Boulder, CO USA.
[Martin, M. Val] Univ Sheffield, Dept Chem & Biol Engn, Sheffield, S Yorkshire, England.
RP Tilmes, S (reprint author), Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA.
EM tilmes@ucar.edu
RI Liu, Xiaohong/E-9304-2011; Ma, Po-Lun/G-7129-2015; Ryerson,
Tom/C-9611-2009; Lamarque, Jean-Francois/L-2313-2014; Ghan,
Steven/H-4301-2011; Deeter, Merritt/O-6078-2016; Emmons,
Louisa/R-8922-2016; Manager, CSD Publications/B-2789-2015
OI Liu, Xiaohong/0000-0002-3994-5955; Ma, Po-Lun/0000-0003-3109-5316;
Lamarque, Jean-Francois/0000-0002-4225-5074; Ghan,
Steven/0000-0001-8355-8699; Deeter, Merritt/0000-0002-3555-0518; Emmons,
Louisa/0000-0003-2325-6212; Arnold, Steve/0000-0002-4881-5685;
FU National Science Foundation; Office of Science (BER) of the US
Department of Energy; US Department of Energy, Office of Science, Basic
Energy Research; DOE by Battelle Memorial Institute [DE-AC05-76RL01830]
FX We thank the HIPPO team for performing reliable aircraft observations
used in this study, in particular Steven Wofsy for leading the
campaigns, Joshua Schwarz and Anne Perring or providing black carbon
observations, and Ru-Shan Gao for providing ozone observations. We also
thank Kenneth Aikin for providing airborne observations in a unified and
user-friendly format. MERRA data used in this study have been provided
by the Global Modeling and Assimilation Office (GMAO) at NASA Goddard
Space Flight Center through the NASA GES DISC online archive. The CESM
project is supported by the National Science Foundation and the Office
of Science (BER) of the US Department of Energy. The National Center for
Atmospheric Research is funded by the National Science Foundation. S.
Ghan and P.-L. Ma were supported by the US Department of Energy, Office
of Science, Basic Energy Research as part of the Scientific Discoveries
through Advanced Computing program. The Pacific Northwest National
Laboratory is operated for DOE by Battelle Memorial Institute under
contract DE-AC05-76RL01830.
NR 60
TC 24
Z9 24
U1 5
U2 34
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2015
VL 8
IS 5
BP 1395
EP 1426
DI 10.5194/gmd-8-1395-2015
PG 32
WC Geosciences, Multidisciplinary
SC Geology
GA CJ2BK
UT WOS:000355289000009
ER
PT J
AU Jung, HB
Carroll, KC
Kabilan, S
Heldebrant, DJ
Hoyt, D
Zhong, L
Varga, T
Stephens, S
Adams, L
Bonneville, A
Kuprat, A
Fernandez, A
AF Jung, H. B.
Carroll, K. C.
Kabilan, S.
Heldebrant, D. J.
Hoyt, D.
Zhong, L.
Varga, T.
Stephens, S.
Adams, L.
Bonneville, A.
Kuprat, A.
Fernandez, A.
TI Stimuli-responsive/rheoreversible hydraulic fracturing fluids as a
greener alternative to support geothermal and fossil energy production
SO GREEN CHEMISTRY
LA English
DT Article
ID NUCLEAR-MAGNETIC-RESONANCE; THERMAL-DEGRADATION; ART CONSERVATION;
WORMLIKE MICELLES; CARBON-DIOXIDE; IMAGING DATA; NATURAL-GAS; POLYMER;
CO2; GELS
AB Cost-effective yet safe creation of high-permeability reservoirs within deep bedrock is the primary challenge for the viability of enhanced geothermal systems (EGS) and unconventional oil/gas recovery. Although fracturing fluids are commonly used for oil/gas, standard fracturing methods are not developed or proven for EGS temperatures and pressures. Furthermore, the environmental impacts of currently used fracturing methods are only recently being determined. Widespread concerns about the environmental contamination have resulted in a number of regulations for fracturing fluids advocating for greener fracturing processes. To enable EGS feasibility and lessen environmental impact of reservoir stimulation, an environmentally benign, CO2-activated, rheoreversible fracturing fluid that enhances permeability through fracturing due to in situ volume expansion and gel formation is investigated herein. The chemical mechanism, stability, phase-change behavior, and rheology for a novel polyallylamine (PAA)-CO2 fracturing fluid was characterized at EGS temperatures and pressures. Hydrogel is formed upon reaction with CO2, and this process is reversible (via CO2 depressurization or solubilizing with a diluted acid) allowing potential removal from the formation and recycling, decreasing environmental impact. Rock obtained from the Coso geothermal field was fractured in laboratory-scale experiments under various EGS temperatures and pressures at significantly (at least an order of magnitude) lower effective stress than standard fracturing fluids, and the fractures were characterized with imaging, permeability measurement, and flow modeling. Although additional work is required to further understand the fluid properties, potential and limitations, this novel fracturing fluid and process represent a potential alternative to conventional fracturing fluids to vastly reduce water usage and the environmental impact of fracturing practices and effectively make EGS production and unconventional oil/gas exploitation cost-effective and cleaner.
C1 [Jung, H. B.; Kabilan, S.; Heldebrant, D. J.; Hoyt, D.; Zhong, L.; Varga, T.; Stephens, S.; Adams, L.; Bonneville, A.; Kuprat, A.; Fernandez, A.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Carroll, K. C.] New Mexico State Univ, Las Cruces, NM 88003 USA.
RP Fernandez, A (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM carlos.fernandez@pnnl.gov
RI Carroll, Kenneth/H-5160-2011;
OI Carroll, Kenneth/0000-0003-2097-9589; Kuprat, Andrew/0000-0003-4159-918X
FU Geothermal Technology Office of the U.S. Department of Energy; U.S.
Department of Energy [DE-AC06-76RLO 1830.]; EMSL [47743]
FX We are grateful to Professor Joseph Moore at Energy & Geoscience
Institute for providing rock cores from the Coso geothermal field, Dr.
Eric Walter for assistance with NMR analysis, Mrs. Maura Zimmerschied
and Dr Steven Wiley for very useful edits and suggestions. XMT and NMR
analyses were performed in EMSL (Environmental Molecular Sciences
Laboratory; EMSL proposal #47743), a DOE national scientific user
facility at Pacific Northwest National Laboratory (PNNL). Funding for
this research was provided by the Geothermal Technology Office of the
U.S. Department of Energy. Pacific Northwest National Laboratory is
operated by Battelle for the U.S. Department of Energy under contract
DE-AC06-76RLO 1830.
NR 53
TC 10
Z9 10
U1 6
U2 32
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9262
EI 1463-9270
J9 GREEN CHEM
JI Green Chem.
PY 2015
VL 17
IS 5
BP 2799
EP 2812
DI 10.1039/c4gc01917b
PG 14
WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
SC Chemistry; Science & Technology - Other Topics
GA CI0EQ
UT WOS:000354409500025
ER
PT J
AU Zhu, MH
Zhao, JM
Li, YB
Mehio, N
Qi, YR
Liu, HZ
Dai, S
AF Zhu, Menghao
Zhao, Junmei
Li, Yingbo
Mehio, Nada
Qi, Yuruo
Liu, Huizhou
Dai, Sheng
TI An ionic liquid-based synergistic extraction strategy for rare earths
SO GREEN CHEMISTRY
LA English
DT Article
ID DI-(2-ETHYLHEXYL) 2-ETHYLHEXYL PHOSPHONATE; SOLVENT-EXTRACTION; NITRATE
MEDIUM; SELECTIVE EXTRACTION; SUPERCRITICAL CO2; TRANSITION-METALS;
CYANEX 923; TEMPERATURE; SEPARATION; LANTHANIDES
AB In this work, a novel IL-based synergistic extraction system utilizing the ionic liquid tricaprylmethyl-ammonium nitrate ([A336][NO3]) and the commercial extractant di(2-ethylhexyl) 2-ethylhexyl phosphonate (DEHEHP) was developed for the extraction of rare earth (RE) nitrates. Pr(III) was used as a model RE and the effects of key factors, i.e. the ratio of [A336][NO3] to DEHEHP, the acidity of feed solutions, and the concentration of a salting-out reagent, were systematically studied. Our results demonstrate that the mixture of [A336][NO3] and DEHEHP had an obviously synergistic extraction effect for the extraction of Pr(III). The maximum synergistic enhancement coefficient of 3.44 was attained at X-A = 0.4 (v%). Alternatively, a mixture of [A336][Cl] and DEHEHP hardly extracted Pr(III) from chloride media. Moreover, we investigated the Pr(III) extraction mechanism and demonstrated that Pr(III) can be extracted as the neutral complexation species Pr(NO3)(3)center dot chi DEHEHP and the ion-type species [A336](y)center dot Pr(NO3)(3+y). These extraction processes can effectively hamper the release of organic cation-ligands into the aqueous phase. The synergistic extraction effect is mainly derived from the enhanced solubility of the extracted species in the ionic liquid phase. The extraction behaviors of Pr(III) could be properly described by Langmuir and pseudo-second-order rate equations. An increase in temperature was unfavorable for the extraction reaction but greatly improved the extraction rate. Interestingly, the mixed IL extraction system has an obviously synergistic extraction effect for light REs (LREs, La-Eu), but an anti-synergistic effect for heavy REs (HREs, Gd-Lu, Y), thus indicating that our synergistic extraction system is helpful for the separation of LREs from HREs. In addition, the high selectivity between REs and non-REs suggested that the recovery of REs from a complicated high-salt leachate could be highly possible. It demonstrates that the IL-based synergistic extraction strategy developed in this work is promising and sustainable, and as a result the development of an IL-based synergistic extraction process for the recovery of REs is straightforwardly envisaged.
C1 [Zhu, Menghao; Zhao, Junmei; Li, Yingbo; Qi, Yuruo; Liu, Huizhou] Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China.
[Zhu, Menghao; Qi, Yuruo] Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
[Zhao, Junmei; Mehio, Nada; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Zhao, JM (reprint author), Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China.
EM jmzhao@ipe.ac.cn
RI Dai, Sheng/K-8411-2015
OI Dai, Sheng/0000-0002-8046-3931
FU "973" Project [2012CBA01202]; Key Research Program of the Chinese
Academy of Sciences [KGZD-EW-201-1]; State Scholarship Fund from China
Scholarship Council; U.S. Department of Energy, Office of Science, Basic
Energy Sciences, Chemical Sciences, Geosciences, and Biosciences
Division
FX This work was supported by the "973" Project (2012CBA01202) and the Key
Research Program of the Chinese Academy of Sciences (KGZD-EW-201-1).
This work was also supported by the State Scholarship Fund from China
Scholarship Council. SD was supported by the U.S. Department of Energy,
Office of Science, Basic Energy Sciences, Chemical Sciences,
Geosciences, and Biosciences Division.
NR 45
TC 18
Z9 18
U1 12
U2 105
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9262
EI 1463-9270
J9 GREEN CHEM
JI Green Chem.
PY 2015
VL 17
IS 5
BP 2981
EP 2993
DI 10.1039/c5gc00360a
PG 13
WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
SC Chemistry; Science & Technology - Other Topics
GA CI0EQ
UT WOS:000354409500044
ER
PT J
AU Budhi, S
Mukarakate, C
Iisa, K
Pylypenko, S
Ciesielski, PN
Yung, MM
Donohoe, BS
Katahira, R
Nimlos, MR
Trewyn, BG
AF Budhi, Sridhar
Mukarakate, Calvin
Iisa, Kristiina
Pylypenko, Svitlana
Ciesielski, Peter N.
Yung, Matthew M.
Donohoe, Bryon S.
Katahira, Rui
Nimlos, Mark R.
Trewyn, Brian G.
TI Molybdenum incorporated mesoporous silica catalyst for production of
biofuels and value-added chemicals via catalytic fast pyrolysis
SO GREEN CHEMISTRY
LA English
DT Article
ID X-RAY PHOTOELECTRON; MOLECULAR CHARACTERIZATION; BIOMASS; CONVERSION;
DEHYDRATION; FRUCTOSE; TRANSFORMATION; NANOPARTICLES; DERIVATIVES;
OXIDATION
AB Production of value-added furans and phenols from biomass through catalytic fast pyrolysis of pine using molybdenum supported on KIT-5 mesoporous silica was explored. Catalysts containing different loadings of molybdenum were synthesized and characterized by X-ray diffraction, physisorption and chemisorption analysis, various electron microscopic techniques and X-ray photoelectron spectroscopy. Characterization studies indicate that molybdenum is homogeneously distributed over the KIT-5 silica support in a +6 oxidation state. Fast pyrolysis of pine using molecular beam mass spectrometry with fresh Mo catalyst preferentially produced furans and phenols over conventionally observed aromatic hydrocarbons. Detailed investigation of model biopolymers indicates that the furans originated from the carbohydrate portion of the biomass and the phenols emerged predominantly from the lignin portion of biomass. Results obtained from MBMS were complemented using pyrolytic-GCMS.
C1 [Budhi, Sridhar; Mukarakate, Calvin; Iisa, Kristiina; Ciesielski, Peter N.; Yung, Matthew M.; Donohoe, Bryon S.; Katahira, Rui; Nimlos, Mark R.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Budhi, Sridhar; Pylypenko, Svitlana; Trewyn, Brian G.] Colorado Sch Mines, Dept Chem & Geochem, Golden, CO 80401 USA.
RP Budhi, S (reprint author), Natl Renewable Energy Lab, 15523 Denver West Pkwy, Golden, CO 80401 USA.
EM Calvin.Mukarakate@nrel.gov; btrewyn@mines.edu
RI Budhi, Sridhar/B-2157-2017
OI Budhi, Sridhar/0000-0003-2514-5161
FU U.S. Department of Energy's Bioenergy Technologies Office (DOE-BETO)
[DE-AC36-08GO28308]; National Renewable Energy Laboratory; Colorado
School of Mines
FX This work was supported by U.S. Department of Energy's Bioenergy
Technologies Office (DOE-BETO) under contract no. DE-AC36-08GO28308 with
the National Renewable Energy Laboratory. Also BGT and SB would like to
thank the Colorado School of Mines for support of this project. Thanks
to Daniel Carpenter for support with MBMS experiments.
NR 47
TC 4
Z9 4
U1 2
U2 26
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9262
EI 1463-9270
J9 GREEN CHEM
JI Green Chem.
PY 2015
VL 17
IS 5
BP 3035
EP 3046
DI 10.1039/c4gc02477j
PG 12
WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
SC Chemistry; Science & Technology - Other Topics
GA CI0EQ
UT WOS:000354409500050
ER
PT J
AU El Mehdawi, AF
Lindblom, SD
Cappa, JJ
Fakra, SC
Pilon-Smits, EAH
AF El Mehdawi, Ali F.
Lindblom, Stormy D.
Cappa, Jennifer J.
Fakra, Sirine C.
Pilon-Smits, Elizabeth A. H.
TI Do Selenium Hyperaccumulators Affect Selenium Speciation in Neighboring
Plants and Soil? An X-Ray Microprobe Analysis
SO INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
LA English
DT Article; Proceedings Paper
CT 10th International Phytotechnology Conference
CY OCT 01-04, 2013
CL Syracuse, NY
DE Artemisia ludoviciana; Chenopodium album; Symphyotrichum ericoides;
X-ray absorption near-edge structure spectroscopy; X-ray fluorescence
mapping
ID PRAIRIE DOG HERBIVORY; STANLEYA-PINNATA; ASTRAGALUS-BISULCATUS; PROTECTS
PLANTS; ACCUMULATION; TOLERANCE; TOXICITY; SELENOCYSTEINE; ASSIMILATION;
DETERRENCE
AB Neighbors of Se hyperaccumulators Stanleya pinnata and Astragalus bisulcatus were found earlier to have elevated Se levels. Here we investigate whether Se hyperaccumulators affect Se localization and speciation in surrounding soil and neighboring plants. X-ray fluorescence mapping and X-ray absorption near-edge structure spectroscopy were used to analyze Se localization and speciation in leaves of Artemisia ludoviciana, Symphyotrichum ericoides and Chenopodium album growing next to Se hyperaccumulators or non-accumulators at a seleniferous site. Regardless of neighbors, A. ludoviciana, S. ericoides and C. album accumulated predominantly (73-92%) reduced selenocompounds with XANES spectra similar to the C-Se-C compounds selenomethionine and methyl-selenocysteine. Preliminary data indicate that the largest Se fraction (65-75%), both in soil next to hyperaccumulator S. pinnata and next to nonaccumulator species was reduced Se with spectra similar to C-Se-C standards. These same C-Se-C forms are found in hyperaccumulators. Thus, hyperaccumulator litter may be a source of organic soil Se, but soil microorganisms may also contribute. These findings are relevant for phytoremediation and biofortification since organic Se is more readily accumulated by plants, and more effective for dietary Se supplementation.
C1 [El Mehdawi, Ali F.; Lindblom, Stormy D.; Cappa, Jennifer J.; Pilon-Smits, Elizabeth A. H.] Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA.
[Fakra, Sirine C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Pilon-Smits, EAH (reprint author), Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA.
EM epsmits@lamar.colostate.edu
FU National Science Foundation [IOS-0817748]; Libyan government; Office of
Science of the U.S. Department of Energy [DE-AC02-05CH11231]; Basic
Energy Sciences of the U.S. Department of Energy [DE-AC02-05CH11231];
Division of Materials Science of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX Funding for these studies was provided by National Science Foundation
grant # IOS-0817748 to Elizabeth A. H. Pilon-Smits and a graduate
fellowship from the Libyan government to Ali F. El Mehdawi. The Advanced
Light Source is supported by the Office of Science, Basic Energy
Sciences, and Division of Materials Science of the U.S. Department of
Energy (DE-AC02-05CH11231).
NR 63
TC 5
Z9 5
U1 2
U2 15
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 1522-6514
EI 1549-7879
J9 INT J PHYTOREMEDIAT
JI Int. J. Phytoremediat.
PY 2015
VL 17
IS 8
SI SI
BP 753
EP 765
DI 10.1080/15226514.2014.987374
PG 13
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA CJ4TV
UT WOS:000355480700005
PM 26030363
ER
PT J
AU Yu, JG
Valderrama, B
Henderson, HB
Manuel, MV
Allen, T
AF Yu, Jianguo
Valderrama, Billy
Henderson, Hunter B.
Manuel, Michele V.
Allen, Todd
TI Near Surface Stoichiometry in UO2: A Density Functional Theory Study
SO JOURNAL OF CHEMISTRY
LA English
DT Article
ID AUGMENTED-WAVE METHOD; URANIUM-DIOXIDE; THERMOPHYSICAL PROPERTIES;
MOLECULAR-DYNAMICS; ENERGY; SIMULATION; SPECTRA; METALS; OXIDES; OXYGEN
AB The mechanisms of oxygen stoichiometry variation in UO2 at different temperature and oxygen partial pressure are important for understanding the dynamics of microstructure in these crystals. However, very limited experimental studies have been performed to understand the atomic structure of UO2 near surface and defect effects of near surface on stoichiometry in which the system can exchange atoms with the external reservoir. In this study, the near (110) surface relaxation and stoichiometry in UO2 have been studied with density functional theory (DFT) calculations. On the basis of the point-defect model (PDM), a general expression for the near surface stoichiometric variation is derived by using DFT total-energy calculations and atomistic thermodynamics, in an attempt to pin down the mechanisms of oxygen exchange between the gas environment and defected UO2. By using the derived expression, it is observed that, under poor oxygen conditions, the stoichiometry of near surface is switched from hyperstoichiometric at 300 K with a depth around 3 nm to near-stoichiometric at 1000 K and hypostoichiometric at 2000 K. Furthermore, at very poor oxygen concentrations and high temperatures, our results also suggest that the bulk of the UO2 prefers to be hypostoichiometric, although the surface is near-stoichiometric.
C1 [Yu, Jianguo; Allen, Todd] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Valderrama, Billy; Henderson, Hunter B.; Manuel, Michele V.] Univ Florida, Gainesville, FL 32611 USA.
RP Yu, JG (reprint author), Idaho Natl Lab, Idaho Falls, ID 83415 USA.
EM jianguo.yu@inl.gov
RI Yu, Jianguo/C-3424-2013
OI Yu, Jianguo/0000-0001-5604-8132
FU Center for Materials Science of Nuclear Fuel, an Energy Frontier
Research Center (EFRC) - U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences [FWP 1356]
FX This work was supported by the Center for Materials Science of Nuclear
Fuel, an Energy Frontier Research Center (EFRC) funded by the U.S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
under Award no. FWP 1356. The computations were performed using
resources of the Idaho National Laboratory (INL) High Performance
Computing facilities.
NR 37
TC 0
Z9 0
U1 6
U2 30
PU HINDAWI PUBLISHING CORP
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 2090-9063
EI 2090-9071
J9 J CHEM-NY
JI J. Chem.
PY 2015
AR 142510
DI 10.1155/2015/142510
PG 8
WC Chemistry, Multidisciplinary
SC Chemistry
GA CJ4VF
UT WOS:000355484900001
ER
PT J
AU Zeng, XY
You, CH
Leng, LM
Dang, D
Qiao, XC
Li, XH
Li, YW
Liao, SJ
Adzic, RR
AF Zeng, Xiaoyuan
You, Chenghang
Leng, Limin
Dang, Dai
Qiao, Xiaochang
Li, Xuehui
Li, Yingwei
Liao, Shijun
Adzic, Radoslav R.
TI Ruthenium nanoparticles mounted on multielement co-doped graphene: an
ultra-high-efficiency cathode catalyst for Li-O-2 batteries
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID LITHIUM-OXYGEN BATTERIES; LI-AIR BATTERY; BIFUNCTIONAL CATALYST; POROUS
GRAPHENE; IN-SITU; ELECTROCATALYTIC ACTIVITY; NONAQUEOUS ELECTROLYTES;
REDUCTION REACTION; OXIDE CATALYSTS; LONG-LIFE
AB Developing a high-performance Li-O-2 battery demands an air electrode with a high-efficiency bifunctional catalyst. Here we designed a new type of bifunctional cathode catalyst by mounting ruthenium nanoparticles on reduced graphene oxide co-doped with nitrogen, iron, and cobalt. The catalyst exhibited significantly higher ORR and OER activities than a commercial Pt/C catalyst in both aqueous and non-aqueous electrolytes. With this novel catalyst as the cathode, the battery exhibited an ultra-high reversible capacity of 23 905 mA h g(-1) at a current density of 200 mA g(-1). Furthermore, the battery also exhibited an excellent cycling stability-after 300 cycles of limited capacity, the discharge plateau potential decreased only slightly, and the energy efficiency was still above 60%. The battery also demonstrated good rate performance; with discharge current densities of up to 1000 and 2000 mA g(-1), the capacities still reached 14 560 and 6420 mA h g(-1), respectively. We suggest that the excellent performance of our catalyst can be ascribed to the excellent ORR performance of the multielement co-doped graphene and the excellent OER performance of the mounted Ru nanoparticles. In addition, the nanosheet structure with high surface area of the multielement co-doped graphene may result in the formation of uniform Li2O2 nanocrystals, which make the formation (discharge) and decomposition (charge) processes much more reversible.
C1 [Zeng, Xiaoyuan; You, Chenghang; Leng, Limin; Dang, Dai; Qiao, Xiaochang; Li, Xuehui; Li, Yingwei; Liao, Shijun] S China Univ Technol, Sch Chem & Chem Engn, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China.
[Zeng, Xiaoyuan; You, Chenghang; Leng, Limin; Dang, Dai; Qiao, Xiaochang; Li, Xuehui; Li, Yingwei; Liao, Shijun] S China Univ Technol, Sch Chem & Chem Engn, Key Lab New Energy Technol Guangdong Univ, Guangzhou 510641, Guangdong, Peoples R China.
[Adzic, Radoslav R.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Liao, SJ (reprint author), S China Univ Technol, Sch Chem & Chem Engn, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China.
EM chsjliao@scut.edu.cn
RI Liao, Shijun/C-1745-2012; Li, Yingwei/M-6479-2014;
OI Li, Yingwei/0000-0003-1527-551X; You, Chenghang/0000-0001-8232-2262
FU National Science Foundation of China (NSFC) [21076089, 21276098,
11132004, U1301245]; Ministry of Science and Technology of China
[2012AA053402]; Guangdong Natural Science Foundation [S2012020011061];
Ministry of Education of China [20110172110012]; Basic Scientific
Foundation of the Central Universities of China [2013ZP0013]
FX This work was supported by the National Science Foundation of China
(NSFC Project nos 21076089, 21276098, 11132004, and U1301245), the
Ministry of Science and Technology of China (Project no. 2012AA053402),
the Guangdong Natural Science Foundation (Project no. S2012020011061),
the Doctoral Fund of the Ministry of Education of China
(20110172110012), and the Basic Scientific Foundation of the Central
Universities of China (no. 2013ZP0013).
NR 72
TC 15
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U1 24
U2 115
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 21
BP 11224
EP 11231
DI 10.1039/c5ta01887k
PG 8
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CI7OE
UT WOS:000354952500008
ER
PT J
AU Iddir, H
Key, B
Dogan, F
Russell, JT
Long, BR
Bareno, J
Croy, JR
Benedek, R
AF Iddir, Hakim
Key, Baris
Dogan, Fulya
Russell, John T.
Long, Brandon R.
Bareno, Javier
Croy, Jason R.
Benedek, Roy
TI Pristine-state structure of lithium-ion-battery cathode material
Li1.2Mn0.4Co0.4O2 derived from NMR bond pathway analysis
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID PAIR DISTRIBUTION FUNCTION; X-RAY; ELECTRODE MATERIAL; LONG-RANGE; OXIDE
AB Layered lithium ion battery cathode materials have been extensively investigated, of which layered-layered composites xLi(2)MnO(3)center dot(1 - x)LiMO2 (M = Mn, Co, Ni) are of particular interest, owing to their high energy density. Before the structural transformations that occur in these materials with cycling can be understood, the structure of the pristine material must be established. In this work, NMR spectra are measured for the model layered-layered system xLi(2)MnO(3)center dot(1 - x)LiCoO2 and Bond-Pathway-model analysis is applied to elucidate the atomic arrangement and domain structure of this material in its pristine state, before electrochemical cycling. The simplest structural element of an Li2MnO3 domain consists of a stripe of composition LiMn2 parallel to a crystallographic axis in a metal layer of the composite. A simple model of the composite structure may be constructed by a superposition of such stripes in an LiCoO2 background. We show that such a model can account for most of the features of the observed NMR spectra.
C1 [Iddir, Hakim; Russell, John T.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Key, Baris; Dogan, Fulya; Long, Brandon R.; Bareno, Javier; Croy, Jason R.; Benedek, Roy] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Iddir, H (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM iddir@anl.gov
FU Vehicle Technologies Program, U.S. Department of Energy, Office of
Energy Efficiency and Renewable Energy
FX Vehicle Technologies Program, U.S. Department of Energy, Office of
Energy Efficiency and Renewable Energy.
NR 17
TC 7
Z9 7
U1 3
U2 22
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 21
BP 11471
EP 11477
DI 10.1039/c5ta01510c
PG 7
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CI7OE
UT WOS:000354952500037
ER
PT J
AU Perriot, R
Uberuaga, BP
AF Perriot, Romain
Uberuaga, Blas P.
TI Structural vs. intrinsic carriers: contrasting effects of cation
chemistry and disorder on ionic conductivity in pyrochlores
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID ELECTRICAL-CONDUCTIVITY; RADIATION TOLERANCE; MOLECULAR-DYNAMICS;
A(2)B(2)O(7) PYROCHLORES; GADOLINIUM ZIRCONATE; NUCLEAR-WASTE; OXIDES;
FLUORITE; PLUTONIUM; SYSTEM
AB We use molecular dynamics simulations to investigate the role of cation disorder on oxygen diffusion in Gd2Zr2O7 (GZO) and Gd2Ti2O7 (GTO) pyrochlores, a class of complex oxides which contain a structural vacancy relative to the basic fluorite structure. The introduction of disorder has distinct effects depending on the chemistry of the material, increasing the mobility of structural carriers by up to four orders of magnitude in GZO. In contrast, in GTO, there is no mobility at zero or low disorder on the ns timescale, but higher disorder liberates the otherwise immobile carriers, allowing diffusion with rates comparable to GZO for the fully disordered material. We show that the cation disorder enhances the diffusivity by both increasing the concentration of mobile structural carriers and their individual mobility. The disorder also influences the diffusion in materials containing intrinsic carriers, such as additional vacancies V-O or oxygen interstitials O-I. While in ordered GZO and GTO the contribution of the intrinsic carriers dominates the overall diffusion of oxygen, O-I in GZO contributes along with structural carriers, and the total diffusion rate can be calculated by assuming simple additive contributions from the two sources. Although the disorder in the materials with intrinsic defects usually enhances the diffusivity as in the defect-free case, in low concentrations, cation antisites A(B) or B-A, where A = Gd and B = Zr or Ti, can act as traps for fast intrinsic defects. The trapping results in a lowering of the diffusivity, and causes a non-monotonic behavior of the diffusivity with disorder. By contrast, in the case of slow intrinsic defects, the main effect of the disorder is to liberate the structural carriers, resulting in an increase of the diffusivity regardless of the defect trapping.
C1 [Perriot, Romain; Uberuaga, Blas P.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
RP Perriot, R (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
EM rperriot@lanl.gov
FU U.S. Department of Energy, Office of Science, Basic Energy Sciences,
Materials Sciences and Engineering Division; National Nuclear Security
Administration of the U.S. DOE [DE-AC52-06NA25396]
FX The authors thank Arthur Voter and Enrique Martinez at LANL for
enlightening discussion. This work was supported by the U.S. Department
of Energy, Office of Science, Basic Energy Sciences, Materials Sciences
and Engineering Division. 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
U.S. DOE under contract DE-AC52-06NA25396.
NR 46
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U1 4
U2 21
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 21
BP 11554
EP 11565
DI 10.1039/c5ta01692d
PG 12
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CI7OE
UT WOS:000354952500046
ER
PT J
AU Gunathilake, C
Gorka, J
Dai, S
Jaroniec, M
AF Gunathilake, Chamila
Gorka, Joanna
Dai, Shen
Jaroniec, Mietek
TI Amidoxime-modified mesoporous silica for uranium adsorption under
seawater conditions
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID INDUCED GRAFT-POLYMERIZATION; METAL-IONS; AQUEOUS-SOLUTION; SEA-WATER;
EXTRACTION; RESINS; ORGANOSILICA; ADSORBENTS; NANOFIBERS; ELEMENTS
AB Amidoxime-modified ordered mesoporous silica (AO-OMS) materials were prepared by a two-step process involving: (1) co-condensation synthesis of cyanopropyl-containing ordered mesoporous silica (CP-OMS), and (2) conversion of cyanopropyl into amidoxime groups. The aforementioned co-condensation synthesis is simple and less time consuming as compared to the post-synthesis grafting and assures high loading of organic groups. The intermediate CP-OMS exhibited ordered mesoporosity, high specific surface area, and narrow pore size distribution. Interestingly, conversion of CP-OMS to AO-OMS further improved its properties by enhancing the specific surface area and porosity and achieving high loading of amidoxime groups. High affinity of these groups towards uranium species makes the AO-OMS material an attractive sorbent for uranium recovery as evidenced by very high uranium uptake reaching 57 mg of uranium per gram of AO-OMS under seawater conditions.
C1 [Gunathilake, Chamila; Jaroniec, Mietek] Kent State Univ, Dept Chem & Biochem, Kent, OH 44242 USA.
[Gorka, Joanna; Dai, Shen] Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37831 USA.
RP Gunathilake, C (reprint author), Kent State Univ, Dept Chem & Biochem, Kent, OH 44242 USA.
EM jaroniec@kent.edu
RI Jaroniec, Mietek/A-9733-2008; Dai, Sheng/K-8411-2015
OI Jaroniec, Mietek/0000-0002-1178-5611; Dai, Sheng/0000-0002-8046-3931
FU Office of Nuclear Energy, U.S. Department of Energy
FX The TEM data were obtained at the (cryo) TEM facility at the Liquid
Crystal Institute, Kent State University, supported by the Ohio Research
Scholars Program Research Cluster on Surfaces in Advanced Materials. The
authors thank Dr Min Gao and Michal Marszewski for technical support
with the TEM experiments. JG and SD thank for support by the Office of
Nuclear Energy, U.S. Department of Energy.
NR 31
TC 17
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U1 15
U2 59
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 21
BP 11650
EP 11659
DI 10.1039/c5ta02863a
PG 10
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CI7OE
UT WOS:000354952500056
ER
PT J
AU Cullen, DA
Lopez-Haro, M
Bayle-Guillemaud, P
Guetaz, L
Debe, MK
Steinbach, AJ
AF Cullen, D. A.
Lopez-Haro, M.
Bayle-Guillemaud, P.
Guetaz, L.
Debe, M. K.
Steinbach, A. J.
TI Linking morphology with activity through the lifetime of pretreated PtNi
nanostructured thin film catalysts
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID MEMBRANE FUEL-CELLS; OXYGEN REDUCTION ACTIVITY; ELECTROCATALYSTS;
NANOPARTICLES; STABILITY; NANOPOROSITY; ELECTROLYTE; DISSOLUTION;
DURABILITY; ACTIVATION
AB The nanoscale morphology of highly active Pt3Ni7 nanostructured thin film fuel cell catalysts is linked with catalyst surface area and activity following catalyst pretreatments, conditioning and potential cycling. The significant role of fuel cell conditioning on the structure and composition of these extended surface catalysts is demonstrated by high resolution imaging, elemental mapping and tomography. The dissolution of Ni during fuel cell conditioning leads to highly complex, porous structures which were visualized in 3D by electron tomography. Quantification of the rendered surfaces following catalyst pretreatment, conditioning, and cycling shows the important role pore structure plays in surface area, activity, and durability.
C1 [Cullen, D. A.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Lopez-Haro, M.; Bayle-Guillemaud, P.; Guetaz, L.] Univ Grenoble Alpes, F-38000 Grenoble, France.
[Lopez-Haro, M.; Bayle-Guillemaud, P.; Steinbach, A. J.] CEA Grenoble, LEMMA, INAC SP2M, F-38054 Grenoble, France.
[Guetaz, L.] CEA Grenoble, LITEN, F-38054 Grenoble, France.
[Debe, M. K.] 3M Co, 3M Energy Components Program, St Paul, MN 55144 USA.
RP Cullen, DA (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
EM cullenda@ornl.gov
RI Cullen, David/A-2918-2015; Lopez-Haro, Miguel/D-6722-2013
OI Cullen, David/0000-0002-2593-7866; Lopez-Haro,
Miguel/0000-0003-2560-8015
FU Fuel Cell Technologies Office, Office of Energy Efficiency and Renewable
Energy, U.S. Department of Energy [DE-EE0005667]; ORNL's Center for
Nano-phase Materials Sciences (CNMS), which is a DOE Office of Science
User Facility
FX This work was supported by the Fuel Cell Technologies Office, Office of
Energy Efficiency and Renewable Energy, U.S. Department of Energy under
Award Number DE-EE0005667 and through a user project supported by ORNL's
Center for Nano-phase Materials Sciences (CNMS), which is a DOE Office
of Science User Facility.
NR 31
TC 3
Z9 3
U1 8
U2 40
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 21
BP 11660
EP 11667
DI 10.1039/c5ta01854d
PG 8
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CI7OE
UT WOS:000354952500057
ER
PT J
AU Adams, BW
AF Adams, Bernhard W.
TI Coherence conversion for optimized resolution in optical measurements -
example of femtosecond time resolution using the transverse coherence of
100-picosecond X-rays
SO JOURNAL OF MODERN OPTICS
LA English
DT Article
DE phase space; coherence; laser-pump; X-ray probe spectroscopy; Wigner
distribution; femtosecond; XFEL
ID WIGNER DISTRIBUTION FUNCTION; EXCEEDING CLASSICAL LIMIT; QUANTUM BEATS;
DIFFRACTION EXPERIMENTS; TRANSPORT-EQUATIONS; PHASE RETRIEVAL;
ELECTRIC-FIELD; PHOTON SOURCE; LIGHT-HOLE; GAAS
AB A way is proposed to obtain a femtosecond time resolution over a picosecond range in laser-pump, X-ray probe spectroscopic measurements where the light source and the detector are much slower than that. It is based on a phase-space transformation from the time/bandwidth to the spatial/wavenumber domain to match the coherence properties of synchrotron radiation to the requirements of femtosecond experiments. In a first step, the geometry of the laser incidence maps time, t, of laser-induced femtosecond dynamics to a spatial coordinate, x. Then, a far-field X-ray diffraction pattern, i.e. the optical Fourier transform, is obtained from the laser-induced modifications of the sample properties, including shifts of X-ray absorption edges and changes in crystallographic unit-cell form factors. Whereas the first step is similar to previously used schemes for femtosecond time resolution, the second one is substantially different with specific advantages discussed in the text. Key to this technique is that the modulus of the Fourier transform is invariant with respect to translations xi along x, which are due to the t-x correlation. It can, therefore, be acquired in a simple intensity measurement with a slow detector. The phase, which does vary strongly with xi, is missing in the intensity data, but can be recovered through a heterodyning technique. Data from a demonstration experiment are presented. The same concept can be used to obtain attosecond time resolution with an X-ray free-electron laser.
C1 Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Adams, BW (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
EM adams@aps.anl.gov
FU US Department of Energy, Office of Basic Energy Sciences
[DE-AC02-06CH11357]
FX This work was supported by the US Department of Energy, Office of Basic
Energy Sciences [contract number DE-AC02-06CH11357].
NR 66
TC 0
Z9 0
U1 3
U2 5
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0950-0340
EI 1362-3044
J9 J MOD OPTIC
JI J. Mod. Opt.
PY 2015
VL 62
IS 12
BP 989
EP 1006
DI 10.1080/09500340.2015.1019378
PG 18
WC Optics
SC Optics
GA CJ2OY
UT WOS:000355325500004
ER
PT J
AU Wang, F
Karan, NS
Nguyen, HM
Ghosh, Y
Sheehan, CJ
Hollingsworth, JA
Htoon, H
AF Wang, Feng
Karan, Niladri S.
Hue Minh Nguyen
Ghosh, Yagnaseni
Sheehan, Chris J.
Hollingsworth, Jennifer A.
Htoon, Han
TI Correlated structural-optical study of single nanocrystals in a gap-bar
antenna: effects of plasmonics on excitonic recombination pathways
SO NANOSCALE
LA English
DT Article
ID CDSE QUANTUM DOTS; EMISSION RATE; EMITTERS; ENHANCEMENT;
PHOTOLUMINESCENCE; NANOPARTICLES; EXCITATION; NANOWIRE
AB We performed time-correlated single-photon counting experiments on individual silica coated CdSe/CdS core/thick-shell nanocrystal quantum dots (a.k.a., giant NQDs [g-NQDs]), placed on the plasmonic gap-bar antennas. Optical properties were directly correlated with the scanning electron microscopy (SEM) images of g-NQD-plasmonic antenna coupled structures. The structures, in which the g-NQDs are located in the gap of the antenna, afford a coupling with up to 9.6 fold enhancement of radiative recombination rates. These coupled g-NQDs are also characterized by a strong enhancement of bi-exciton emission efficiency that increases with their radiative enhancement factor. By analysing these findings with a simple model, we show that the plasmonic field of the antenna does not alter the Auger recombination processes of the bi-exciton states. As a result, enhancements of the single and bi-exciton radiative recombination rates lead directly to bi-exciton emission enhancement. These findings suggest that a plasmonic field can be utilized effectively in achieving a strong bi-exciton emission that is needed for photon pair generation and plasmon-assisted lasing.
C1 [Wang, Feng; Karan, Niladri S.; Hue Minh Nguyen; Ghosh, Yagnaseni; Sheehan, Chris J.; Hollingsworth, Jennifer A.; Htoon, Han] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
RP Htoon, H (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, POB 1663, Los Alamos, NM 87545 USA.
EM htoon@lanl.gov
OI Htoon, Han/0000-0003-3696-2896
FU Single Investigator Small Group Research Grant [2009LANL1096]; Division
of Materials Science and Engineering (MSE), Office of Basic Energy
Sciences (OBES), Office of Science (OS), U.S. Department of Energy (DOE)
FX This work was supported by a Single Investigator Small Group Research
Grant (2009LANL1096), Division of Materials Science and Engineering
(MSE), Office of Basic Energy Sciences (OBES), Office of Science (OS),
U.S. Department of Energy (DOE) and conducted at the Center for
Integrated Nanotechnologies (CINT), a U.S. DOE, OBES Nanoscale Science
Research Center and User Facility. We thank Andrei Piryatinski of LANL,
Theoretical Division for a discussion.
NR 43
TC 7
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U1 3
U2 32
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 21
BP 9387
EP 9393
DI 10.1039/c5nr00772k
PG 7
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CI7YM
UT WOS:000354983100002
PM 25947939
ER
PT J
AU Lee, JRI
Bagge-Hansen, M
Tunuguntla, R
Kim, K
Bangar, M
Willey, TM
Tran, IC
Kilcoyne, DA
Noy, A
van Buuren, T
AF Lee, Jonathan R. I.
Bagge-Hansen, Michael
Tunuguntla, Ramya
Kim, Kyunghoon
Bangar, Mangesh
Willey, Trevor M.
Tran, Ich C.
Kilcoyne, David A.
Noy, Aleksandr
van Buuren, Tony
TI Ordering in bio-inorganic hybrid nanomaterials probed by in situ
scanning transmission X-ray microscopy
SO NANOSCALE
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATIONS; DIMENSIONAL LIPID-BILAYERS;
SELF-ASSEMBLED MONOLAYERS; FORCE-FIELD; UNDERPOTENTIAL DEPOSITION;
PHOSPHOLIPID-BILAYERS; MODEL MEMBRANES; CHOLESTEROL; ELECTRODES;
PHOSPHATIDYLCHOLINE
AB Phospholipid bilayer coated Si nanowires are one-dimensional (1D) composites that provide versatile bio-nanoelectronic functionality via incorporation of a wide variety of biomolecules into the phospholipid matrix. The physiochemical behaviour of the phospholipid bilayer is strongly dependent on its structure and, as a consequence, substantial modelling and experimental efforts have been directed at the structural characterization of supported bilayers and unsupported phospholipid vesicles; nonetheless, the experimental studies conducted to date have exclusively involved volume-averaged techniques, which do not allow for the assignment of spatially resolved structural variations that could critically impact the performance of the 1D phospholipid-Si NW composites. In this manuscript, we use scanning transmission X-ray microscopy (STXM) to probe bond orientation and bilayer thickness as a function of position with a spatial resolution of similar to 30 nm for Delta 9-cis 1,2-dioleoyl-sn-glycero-3-phosphocholine layers prepared Si NWs. When coupled with small angle X-ray scattering measurements, the STXM data reveal structural motifs of the Si NWs that give rise to multi-bilayer formation and enable assignment of the orientation of specific bonds known to affect the order and rigidity of phospholipid bilayers.
C1 [Lee, Jonathan R. I.; Bagge-Hansen, Michael; Tunuguntla, Ramya; Kim, Kyunghoon; Willey, Trevor M.; Tran, Ich C.; Noy, Aleksandr; van Buuren, Tony] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
[Kim, Kyunghoon] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
[Bangar, Mangesh] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
[Kilcoyne, David A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source Div, Berkeley, CA 94720 USA.
RP van Buuren, T (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
EM vanbuuren1@llnl.gov
RI Tran, Ich/C-9869-2014; Foundry, Molecular/G-9968-2014; Kilcoyne,
David/I-1465-2013; Willey, Trevor/A-8778-2011
OI Willey, Trevor/0000-0002-9667-8830
FU U.S. Department of Energy (DoE), Office of Basic Energy Sciences,
Division of Materials Science and Engineering by Lawrence Livermore
National Laboratory [DE-AC52-07NA27344]; Office of Science, OBES of the
U.S. DoE [DE-AC02-05CH11231]; DoE Office of Biological and Environmental
Research; National Institutes of Health, National Center for Research
Resources, Biomedical Technology Program [5 P41 RR001209]
FX This work was performed under the auspices of the U.S. Department of
Energy (DoE), Office of Basic Energy Sciences, Division of Materials
Science and Engineering by Lawrence Livermore National Laboratory under
Contract No. DE-AC52-07NA27344. The Advanced Light Source is supported
by the Director, Office of Science, OBES, of the U.S. DoE under contract
no. DE-AC02-05CH11231. SAXS experiments were carried out at the Stanford
Synchrotron Radiation Lightsource (SSRL), a Directorate of SLAC National
Accelerator Laboratory and an Office of Science User Facility operated
for the US DoE Office of Science by Stanford University. The SSRL
Structural Molecular Biology Program is supported by the DoE Office of
Biological and Environmental Research, and by the National Institutes of
Health, National Center for Research Resources, Biomedical Technology
Program (5 P41 RR001209). The authors thank the ALS and SSRL staff for
their assistance during the course of these experiments.
NR 50
TC 0
Z9 0
U1 5
U2 23
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 21
BP 9477
EP 9486
DI 10.1039/c5nr00622h
PG 10
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CI7YM
UT WOS:000354983100019
PM 25874680
ER
PT J
AU Zhao, Y
Feng, ZX
Xu, ZCJ
AF Zhao, Yi
Feng, Zhenxing
Xu, Zhichuan J.
TI Yolk-shell Fe2O3 circle dot C composites anchored on MWNTs with enhanced
lithium and sodium storage
SO NANOSCALE
LA English
DT Article
ID ION BATTERY ANODES; IRON-OXIDE; METAL-OXIDES; ALPHA-FE2O3
NANOSTRUCTURES; COAXIAL NANOCABLES; CARBON NANOTUBES; PERFORMANCE;
CAPACITY; LI; NANOMATERIALS
AB A unique architecture with yolk-shell Fe2O3 circle dot C composites attached to the surface of MWNTs is designed. Benefiting from the good electrical conductivity of MWNTs and carbon layers, as well as the large void space to accommodate the volume expansion/extraction of Fe2O3 during battery cycling, the obtained MWNT@Fe2O3 circle dot C exhibited outstanding lithium and sodium storage performance.
C1 [Zhao, Yi; Xu, Zhichuan J.] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore.
[Feng, Zhenxing] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Xu, Zhichuan J.] Nanyang Technol Univ, Energy Res Inst NTU, Singapore 639798, Singapore.
RP Xu, ZCJ (reprint author), Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore.
EM xuzc@ntu.edu.sg
RI Xu, Zhichuan/D-1661-2013
OI Xu, Zhichuan/0000-0001-7746-5920
FU Nanyang Technological University; Singapore MOE Tier 1 grants [RGT8/13,
RG13/13]; Singapore National Research Foundation under its Campus for
Research Excellence And Technological Enterprise (CREATE) programme
FX This work was supported by the Start-Up Grant of Nanyang Technological
University, and the Singapore MOE Tier 1 grants (RGT8/13 and RG13/13)
and the Singapore National Research Foundation under its Campus for
Research Excellence And Technological Enterprise (CREATE) programme.
NR 54
TC 18
Z9 18
U1 12
U2 100
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 21
BP 9520
EP 9525
DI 10.1039/c5nr01281c
PG 6
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CI7YM
UT WOS:000354983100024
PM 25948503
ER
PT J
AU Liu, S
Li, CY
Figiel, JJ
Brueck, SRJ
Brener, I
Wang, GT
AF Liu, Sheng
Li, Changyi
Figiel, Jeffrey J.
Brueck, Steven R. J.
Brener, Igal
Wang, George T.
TI Continuous and dynamic spectral tuning of single nanowire lasers with
subnanometer resolution using hydrostatic pressure
SO NANOSCALE
LA English
DT Article
ID SOLAR-CELLS; PHASE-TRANSITION; REFRACTIVE-INDEX; SEMICONDUCTOR
NANOWIRES; GAAS NANOWIRES; BAND-GAP; WURTZITE; DEPENDENCE;
PHOTODETECTORS; TRANSFORMATION
AB We report continuous, dynamic, reversible, and widely tunable lasing from 367 to 337 nm from single GaN nanowires (NWs) by applying hydrostatic pressure up to similar to 7 GPa. The GaN NW lasers, with heights of 4-5 mu m and diameters similar to 140 nm, are fabricated using a lithographically defined two-step top-down technique. The wavelength tuning is caused by an increasing Gamma direct bandgap of GaN with increasing pressure and is precisely controllable to subnanometer resolution. The observed pressure coefficients of the NWs are similar to 40% larger compared with GaN microstructures fabricated from the same material or from reported bulk GaN values, revealing a nanoscale-related effect that significantly enhances the tuning range using this approach. This approach can be generally applied to other semiconductor NW lasers to potentially achieve full spectral coverage from the UV to IR.
C1 [Liu, Sheng; Figiel, Jeffrey J.; Brener, Igal; Wang, George T.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Liu, Sheng; Brener, Igal] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA.
[Li, Changyi; Brueck, Steven R. J.] Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87106 USA.
RP Liu, S (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM snliu@sandia.gov; gtwang@sandia.gov
FU U.S. Department of Energy (DOE), Office of Science, Basic Energy
Sciences, Materials Science and Engineering Division; U.S. Department of
Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
FX We thank helpful discussions with Dr Michael B. Sinclair, Dr Binsong Li
and Dr Hongyou Fan. This work was supported by the U.S. Department of
Energy (DOE), Office of Science, Basic Energy Sciences, Materials
Science and Engineering Division. This work was performed, in part, at
the Center for Integrated Nanotechnologies, an Office of Science User
Facility operated for the U.S. DOE, Office of Science. 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 58
TC 5
Z9 5
U1 1
U2 28
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 21
BP 9581
EP 9588
DI 10.1039/c5nr01855b
PG 8
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CI7YM
UT WOS:000354983100032
PM 25952721
ER
PT J
AU Gilbert, DA
Ye, L
Varea, A
Agramunt-Puig, S
del Valle, N
Navau, C
Lopez-Barbera, JF
Buchanan, KS
Hoffmann, A
Sanchez, A
Sort, J
Liu, K
Nogues, J
AF Gilbert, Dustin A.
Ye, Li
Varea, Aida
Agramunt-Puig, Sebastia
del Valle, Nuria
Navau, Carles
Francisco Lopez-Barbera, Jose
Buchanan, Kristen S.
Hoffmann, Axel
Sanchez, Alvar
Sort, Jordi
Liu, Kai
Nogues, Josep
TI A new reversal mode in exchange coupled antiferromagnetic/ferromagnetic
disks: distorted viscous vortex
SO NANOSCALE
LA English
DT Article
ID MAGNETIC VORTICES; BIAS; MAGNETORESISTANCE; NANOSTRUCTURES; DEPENDENCE;
DRIVEN; DOTS
AB Magnetic vortices have generated intense interest in recent years due to their unique reversal mechanisms, fascinating topological properties, and exciting potential applications. In addition, the exchange coupling of magnetic vortices to antiferromagnets has also been shown to lead to a range of novel phenomena and functionalities. Here we report a new magnetization reversal mode of magnetic vortices in exchange coupled Ir20Mn80/Fe20Ni80 microdots: distorted viscous vortex reversal. In contrast to the previously known or proposed reversal modes, the vortex is distorted close to the interface and viscously dragged due to the uncompensated spins of a thin antiferromagnet, which leads to unexpected asymmetries in the annihilation and nucleation fields. These results provide a deeper understanding of the physics of exchange coupled vortices and may also have important implications for applications involving exchange coupled nanostructures.
C1 [Gilbert, Dustin A.; Ye, Li; Liu, Kai] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
[Varea, Aida] Univ Barcelona, Dept Elect, MinD in2UB, E-08028 Barcelona, Spain.
[Agramunt-Puig, Sebastia; del Valle, Nuria; Navau, Carles; Francisco Lopez-Barbera, Jose; Sanchez, Alvar; Sort, Jordi; Nogues, Josep] Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Barcelona, Spain.
[Francisco Lopez-Barbera, Jose; Nogues, Josep] ICN2, Bellaterra 08193, Barcelona, Spain.
[Buchanan, Kristen S.] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA.
[Hoffmann, Axel] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Sort, Jordi; Nogues, Josep] ICREA, Barcelona, Spain.
RP Liu, K (reprint author), Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
EM kailiu@ucdavis.edu; Josep.Nogues@uab.cat
RI Liu, Kai/B-1163-2008; Varea, Aida/L-5723-2014; Nogues,
Josep/D-7791-2012; Gilbert, Dustin/G-1683-2011; Sort, Jordi/F-6582-2014;
Navau, Carles/O-9936-2015; Hoffmann, Axel/A-8152-2009; Sanchez,
Alvaro/C-7041-2008
OI Buchanan, Kristen/0000-0003-0879-0038; Liu, Kai/0000-0001-9413-6782;
Varea, Aida/0000-0002-5264-6458; Nogues, Josep/0000-0003-4616-1371;
Gilbert, Dustin/0000-0003-3747-3883; Sanchez,
Alvaro/0000-0002-2988-0289; Sort, Jordi/0000-0003-1213-3639; Navau,
Carles/0000-0003-4763-5305; Hoffmann, Axel/0000-0002-1808-2767;
FU US NSF [DMR-1008791, ECCS-1232275]; Generalitat de Catalunya; Spanish
Ministerio de Economia y Competitividad (MinECO) [MAT2010-20616-C02,
CSD2007-00041, MAT2012-35370]; U. S. Department of Energy, Office of
Science, Materials Science and Engineering Division; DOE, Office of
Science, Basic Energy Science [DE-AC02-06CH11357]; NSFC [11328402];
ICREA Academia - Generalitat de Catalunya; Severo Ochoa Program (MinECO)
[SEV-2013-0295]
FX This work was supported by the US NSF (DMR-1008791 and ECCS-1232275),
the 2014-SGR-1015 project of the Generalitat de Catalunya, and
MAT2010-20616-C02, CSD2007-00041 and MAT2012-35370 projects of the
Spanish Ministerio de Economia y Competitividad (MinECO). Work at
Argonne was supported by the U. S. Department of Energy, Office of
Science, Materials Science and Engineering Division. Fabrication was
performed at the Center for Nanoscale Materials, which is supported by
DOE, Office of Science, Basic Energy Science under Contract No.
DE-AC02-06CH11357. KL acknowledges support from the NSFC (11328402). AS
acknowledges a grant from the ICREA Academia, funded by the Generalitat
de Catalunya. ICN2 acknowledges support from the Severo Ochoa Program
(MinECO, Grant SEV-2013-0295).
NR 67
TC 5
Z9 5
U1 6
U2 32
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 21
BP 9878
EP 9885
DI 10.1039/c5nr01856k
PG 8
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CI7YM
UT WOS:000354983100065
PM 25965577
ER
PT J
AU Thornton, AW
Winkler, DA
Liu, MS
Haranczyk, M
Kennedy, DF
AF Thornton, A. W.
Winkler, D. A.
Liu, M. S.
Haranczyk, M.
Kennedy, D. F.
TI Towards computational design of zeolite catalysts for CO2 reduction
SO RSC ADVANCES
LA English
DT Article
ID METAL-ORGANIC FRAMEWORKS; MOLECULAR SIMULATION; NANOPOROUS MATERIALS;
POROUS MATERIALS; GAS-ADSORPTION; SEPARATION; CARBON; CAPTURE;
PREDICTION; STORAGE
AB Carbon dioxide, an energy waste by-product with significant environmental consequences can be utilized and converted into useful chemical products such as formic acid, formaldehyde, methanol or methane, but more energy and cost efficient catalytic processes are required. Here we develop the methodology for the intelligent selection of porous zeolites for dual-adsorption of hydrogen and carbon dioxide as templates for preparing the optimal catalytic environment for carbon dioxide reduction. Useful zeolite catalysts were computationally screened from over 300 thousand zeolite structures using a combination of molecular simulation and machine-learning techniques. Several of the top candidates were very promising energy-efficient templates for catalysis with the potential to perform at 50% above conventional reactors. It is also found that an optimal cavity size of around 6 angstrom is required to maximize the change in entropy-enthalpy upon adsorption with a maximum void space >30% to boost product formation per volume of material.
C1 [Thornton, A. W.; Winkler, D. A.; Kennedy, D. F.] CSIRO Mfg Flagship, Clayton, Vic 3169, Australia.
[Winkler, D. A.] Monash Inst Pharmaceut Sci, Parkville, Vic 3052, Australia.
[Liu, M. S.] CSIRO Digital Prod & Serv Flagship, Clayton, Vic 3169, Australia.
[Haranczyk, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
[Winkler, D. A.] La Trobe Univ, Latrobe Inst Mol Sci, Bundoora, Vic 3086, Australia.
RP Thornton, AW (reprint author), CSIRO Mfg Flagship, Private Bag 10, Clayton, Vic 3169, Australia.
EM Aaron.Thornton@csiro.au
RI Haranczyk, Maciej/A-6380-2014;
OI Haranczyk, Maciej/0000-0001-7146-9568; Winkler, David
Alan/0000-0003-2423-674X
FU CSIRO Advanced Materials, Computational & Simulation Sciences, and
Intelligent Processing Transformational Capability Platforms; Science
and Industry Endowment Fund through the 'Solving the Energy-Waste
Roadblock' project; U.S. Department of Energy, Office of Basic Energy
Sciences, Division of Chemical Sciences, Geosciences and Biosciences
[DE-FG02-12ER16362]
FX AWT, DAW, MSL and DFK acknowledge the support of the CSIRO Advanced
Materials, Computational & Simulation Sciences, and Intelligent
Processing Transformational Capability Platforms. AWT and DFK
acknowledge the Science and Industry Endowment Fund for support through
the 'Solving the Energy-Waste Roadblock' project. MH was supported by
the U.S. Department of Energy, Office of Basic Energy Sciences, Division
of Chemical Sciences, Geosciences and Biosciences under Award
DE-FG02-12ER16362.
NR 58
TC 4
Z9 4
U1 8
U2 31
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2046-2069
J9 RSC ADV
JI RSC Adv.
PY 2015
VL 5
IS 55
BP 44361
EP 44370
DI 10.1039/c5ra06214d
PG 10
WC Chemistry, Multidisciplinary
SC Chemistry
GA CI7SM
UT WOS:000354964900056
ER
PT S
AU Tomida, T
Wakita, M
Vogel, S
Sandim, HRZ
AF Tomida, T.
Wakita, M.
Vogel, S.
Sandim, H. R. Z.
BE Skrotzki, W
Oertel, CG
TI Quantitative prediction of transformation texture in steel by Double
Kurdjumov-Sachs relation
SO 17TH INTERNATIONAL CONFERENCE ON TEXTURES OF MATERIALS (ICOTOM 17)
SE IOP Conference Series-Materials Science and Engineering
LA English
DT Proceedings Paper
CT 17th International Conference on Textures of Materials (ICOTOM)
CY AUG 24-29, 2014
CL Dresden, GERMANY
SP Dresden Univ Technol, Inst Struct Phys
AB The transformation texture prediction by so-called double K-S relation is described. Various types of transformation textures such as the one in hot-rolled steel sheets and those of texture memory in hot-rolled steel and cold-rolled pure iron have been reported to be able to be quantitatively predicted by this variant selection rule. Recently such an experimental investigation has been extended to the texture memory in ECAP-processed pure iron. Although the type of texture as well as the symmetry of samples in ECAP iron is very different from the previous materials, the investigation has clearly indicated that the double K-S relation should indeed be the mechanism governing variant selection on the phase transformation in iron and steel.
C1 [Tomida, T.] Nippon Steel & Sumitomo Met Corp, Tech R&D Bur, Amagasaki, Hyogo, Japan.
[Wakita, M.] Nippon Steel & Sumikin Technol, Amagasaki Unit, Amagasaki, Hyogo, Japan.
[Vogel, S.] Los Alamos Natl Lab, Los Alamos Neutron Sci Ctr, Los Alamos, NM USA.
[Sandim, H. R. Z.] Univ Sao Paulo, Escola Engn Lorena, Lorena, Brazil.
RP Tomida, T (reprint author), Nippon Steel & Sumitomo Met Corp, Tech R&D Bur, Amagasaki, Hyogo, Japan.
EM tomida-toshiro@nsst.jp
RI Sandim, Hugo/F-2778-2013;
OI Sandim, Hugo/0000-0003-4522-6639; Vogel, Sven C./0000-0003-2049-0361
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1757-8981
J9 IOP CONF SER-MAT SCI
PY 2015
VL 82
AR 012060
DI 10.1088/1757-899X/82/1/012060
PG 4
WC Materials Science, Multidisciplinary
SC Materials Science
GA BC7HG
UT WOS:000354878500061
ER
PT S
AU Cromaz, M
AF Cromaz, M.
GP IOP
TI The GRETINA Spectrometer
SO 2ND WORKSHOP ON GERMANIUM DETECTORS AND TECHNOLOGIES
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 2nd Workshop on Germanium Detectors and Technologies
CY SEP 14-17, 2014
CL Univ S Dakota, South Dakota, SD
SP Natl Sci Fdn, S Dakota Governers Off Econ Dev, S Dakota Board Regents, S Dakota Small Business Innovat Res, Vermillion Area Chamber Commerce & Dev Co, Skysprings Nano Mat Inc
HO Univ S Dakota
ID NUCLEAR ARRAY GRETINA
AB The GRETINA spectrometer is a first generation, gamma-ray tracking spectrometer capable of determining the Compton scattering path of gamma-rays incident on the detector volume. This ability allows the Ge detectors to be close packed allowing the detector to be scaled to high efficiencies while maintaining good peak-to-total. GRETINA currently consists of 7 4-detector modules giving approximately 1 pi solid angle coverage with a calorimetric efficiency of 6.3% and tracked efficiency of 4.7% at 1.3 MeV. The array's sensitivity to the position of the gamma ray's first interaction point enables precision event-by-event Doppler correction which allows one to achieve 1% energy resolution even for sources moving at a large fraction of the speed of light such as those encountered at fragmentation facilities such as NSCL and the future FRIB.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Cromaz, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM mcromaz@lbl.gov
NR 8
TC 1
Z9 1
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 606
AR 012016
DI 10.1088/1742-6596/606/1/012016
PG 7
WC Physics, Multidisciplinary
SC Physics
GA BC7AI
UT WOS:000354705800016
ER
PT S
AU Guinn, I
Abgrall, N
Avignone, FT
Barabash, AS
Bertrand, FE
Brudanin, V
Busch, M
Buuck, M
Byram, D
Caldwell, AS
Chan, YD
Christofferson, CD
Cuesta, C
Detwiler, JA
Efremenko, Y
Ejiri, H
Elliott, SR
Galindo-Uribarri, A
Giovanetti, GK
Goett, J
Green, MP
Gruszko, J
Guiseppe, VE
Henning, R
Hoppe, EW
Howard, S
Howe, MA
Jasinski, BR
Keeter, KJ
Kidd, MF
Konovalov, SI
Kouzes, RT
LaFerriere, BD
Leon, J
MacMullin, J
Martin, RD
Meijer, SJ
Mertens, S
Orrell, JL
O'Shaughnessy, C
Overman, NR
Poon, AWP
Radford, DC
Rager, J
Rielage, K
Robertson, RGH
Romero-Romero, E
Ronquest, MC
Shanks, B
Shirchenko, M
Snyder, N
Surianol, AM
Tedeschi, D
Trimble, JE
Varner, RL
Vasilyev, S
Vetter, K
Vorren, K
White, BR
Wilkerson, JF
Wiseman, C
Xu, W
Yakushev, E
Yu, CH
Yumatov, V
AF Guinn, I.
Abgrall, N.
Avignone, F. T., III
Barabash, A. S.
Bertrand, F. E.
Brudanin, V.
Busch, M.
Buuck, M.
Byram, D.
Caldwell, A. S.
Chan, Y-D.
Christofferson, C. D.
Cuesta, C.
Detwiler, J. A.
Efremenko, Yu.
Ejiri, H.
Elliott, S. R.
Galindo-Uribarri, A.
Giovanetti, G. K.
Goett, J.
Green, M. P.
Gruszko, J.
Guiseppe, V. E.
Henning, R.
Hoppe, E. W.
Howard, S.
Howe, M. A.
Jasinski, B. R.
Keeter, K. J.
Kidd, M. F.
Konovalov, S. I.
Kouzes, R. T.
LaFerriere, B. D.
Leon, J.
MacMullin, J.
Martin, R. D.
Meijer, S. J.
Mertens, S.
Orrell, J. L.
O'Shaughnessy, C.
Overman, N. R.
Poon, A. W. P.
Radford, D. C.
Rager, J.
Rielage, K.
Robertson, R. G. H.
Romero-Romero, E.
Ronquest, M. C.
Shanks, B.
Shirchenko, M.
Snyder, N.
Surianol, A. M.
Tedeschi, D.
Trimble, J. E.
Varner, R. L.
Vasilyev, S.
Vetter, K.
Vorren, K.
White, B. R.
Wilkerson, J. F.
Wiseman, C.
Xu, W.
Yakushev, E.
Yu, C-H.
Yumatov, V.
CA MAJORANA Collaboration
GP IOP
TI Low Background Signal Readout Electronics for the MAJORANA DEMONSTRATOR
SO 2ND WORKSHOP ON GERMANIUM DETECTORS AND TECHNOLOGIES
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 2nd Workshop on Germanium Detectors and Technologies
CY SEP 14-17, 2014
CL Univ S Dakota, South Dakota, SD
SP Natl Sci Fdn, S Dakota Governers Off Econ Dev, S Dakota Board Regents, S Dakota Small Business Innovat Res, Vermillion Area Chamber Commerce & Dev Co, Skysprings Nano Mat Inc
HO Univ S Dakota
AB The MAJORANA DEMONSTRATOR is a planned 40 kg array of Germanium detectors intended to demonstrate the feasibility of constructing a tonne-scale experiment that will seek neutrinoless double beta decay (0 nu beta beta) in Ge-76. Such an experiment would require backgrounds of less than 1 count/tonne-year in the 4 keV region of interest around the 2039 keV Q-value of the beta beta decay. Designing low-noise electronics, which must be placed in close proximity to the detectors, presents a challenge to reaching this background target. This paper will discuss the MAJORANA collaboration's solutions to some of these challenges.
C1 [Guinn, I.; Buuck, M.; Cuesta, C.; Detwiler, J. A.; Gruszko, J.; Leon, J.; Robertson, R. G. H.] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA.
[Guinn, I.; Buuck, M.; Cuesta, C.; Detwiler, J. A.; Gruszko, J.; Leon, J.; Robertson, R. G. H.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Abgrall, N.; Chan, Y-D.; Mertens, S.; Poon, A. W. P.; Vetter, K.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Avignone, F. T., III; Guiseppe, V. E.; Tedeschi, D.; Wiseman, C.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Avignone, F. T., III; Bertrand, F. E.; Galindo-Uribarri, A.; Green, M. P.; Radford, D. C.; Romero-Romero, E.; Varner, R. L.; White, B. R.; Wilkerson, J. F.; Yu, C-H.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Barabash, A. S.; Konovalov, S. I.; Yumatov, V.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Brudanin, V.; Shirchenko, M.; Vasilyev, S.; Yakushev, E.] Joint Inst Nucl Res, Dubna, Russia.
[Busch, M.; Kidd, M. F.] Duke Univ, Dept Phys, Durham, NC 27706 USA.
[Busch, M.; Giovanetti, G. K.; Howe, M. A.; MacMullin, J.; Meijer, S. J.; O'Shaughnessy, C.; Rager, J.; Shanks, B.; Trimble, J. E.; Vorren, K.; Wilkerson, J. F.] Triangle Univ Nucl Lab, Durham, NC 27706 USA.
[Byram, D.; Jasinski, B. R.; Martin, R. D.; Snyder, N.] Univ S Dakota, Dept Phys, Vermillion, SD 57069 USA.
[Caldwell, A. S.; Christofferson, C. D.; Howard, S.; Surianol, A. M.] South Dakota Sch Mines & Technol, Rapid City, SD USA.
[Efremenko, Yu.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Ejiri, H.] Osaka Univ, Res Ctr Nucl Phys, Ibaraki, Osaka, Japan.
[Ejiri, H.] Osaka Univ, Dept Phys, Ibaraki, Osaka, Japan.
[Elliott, S. R.; Goett, J.; Rielage, K.; Ronquest, M. C.; Xu, W.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Howe, M. A.; MacMullin, J.; O'Shaughnessy, C.; Rager, J.; Shanks, B.; Trimble, J. E.; Vorren, K.; Wilkerson, J. F.] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC USA.
[Hoppe, E. W.; Kouzes, R. T.; LaFerriere, B. D.; Orrell, J. L.; Overman, N. R.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Keeter, K. J.] Black Hills State Univ, Dept Phys, Spearfish, SD 57799 USA.
[Kidd, M. F.] Tennessee Technol Univ, Cookeville, TN USA.
[Vetter, K.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
RP Guinn, I (reprint author), Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA.
EM iguinn@uw.edu
RI Barabash, Alexander/S-8851-2016;
OI Rielage, Keith/0000-0002-7392-7152; Cuesta, Clara/0000-0003-1190-7233
NR 6
TC 0
Z9 0
U1 2
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 606
AR 012009
DI 10.1088/1742-6596/606/1/012009
PG 5
WC Physics, Multidisciplinary
SC Physics
GA BC7AI
UT WOS:000354705800009
ER
PT S
AU Mertens, S
Abgrall, N
Avignone, FT
Barabash, AS
Bertrand, FE
Brudanin, V
Busch, M
Buuck, M
Byram, D
Caldwell, AS
Chan, YD
Christofferson, CD
Cuesta, C
Detwiler, JA
Efremenko, Y
Ejiri, H
Elliott, SR
Galindo-Uribarri, A
Giovanetti, GK
Goett, J
Green, MP
Gruszko, J
Guinn, I
Guiseppe, VE
Henning, R
Hoppe, EW
Howard, S
Howe, MA
Jasinski, BR
Keeter, KJ
Kidd, MF
Konovalov, SI
Kouzes, RT
LaFerriere, BD
Leon, J
MacMullin, J
Martin, RD
Meijer, SJ
Orrell, JL
O'Shaughnessy, C
Overman, NR
Poon, AWP
Radford, DC
Rager, J
Rielage, K
Robertson, RGH
Romero-Romero, E
Ronquest, MC
Shanks, B
Shirchenko, M
Snyder, N
Suriano, AM
Tedeschi, D
Trimble, JE
Varner, RL
Vasilyev, S
Vetter, K
Vorren, K
White, BR
Wilkerson, JF
Wiseman, C
Xu, W
Yakushev, E
Yu, CH
Yumatov, V
AF Mertens, S.
Abgrall, N.
Avignone, F. T., III
Barabash, A. S.
Bertrand, F. E.
Brudanin, V.
Busch, M.
Buuck, M.
Byram, D.
Caldwell, A. S.
Chan, Y-D.
Christofferson, C. D.
Cuesta, C.
Detwiler, J. A.
Efremenko, Yu.
Ejiri, H.
Elliott, S. R.
Galindo-Uribarri, A.
Giovanetti, G. K.
Goett, J.
Green, M. P.
Gruszko, J.
Guinn, I.
Guiseppe, V. E.
Henning, R.
Hoppe, E. W.
Howard, S.
Howe, M. A.
Jasinski, B. R.
Keeter, K. J.
Kidd, M. F.
Konovalov, S. I.
Kouzes, R. T.
LaFerriere, B. D.
Leon, J.
MacMullin, J.
Martin, R. D.
Meijer, S. J.
Orrell, J. L.
O'Shaughnessy, C.
Overman, N. R.
Poon, A. W. P.
Radford, D. C.
Rager, J.
Rielage, K.
Robertson, R. G. H.
Romero-Romero, E.
Ronquest, M. C.
Shanks, B.
Shirchenko, M.
Snyder, N.
Suriano, A. M.
Tedeschi, D.
Trimble, J. E.
Varner, R. L.
Vasilyev, S.
Vetter, K.
Vorren, K.
White, B. R.
Wilkerson, J. F.
Wiseman, C.
Xu, W.
Yakushev, E.
Yu, C-H.
Yumatov, V.
CA MAJORANA Collaboration
GP IOP
TI MAJORANA Collaboration's Experience with Germanium Detectors
SO 2ND WORKSHOP ON GERMANIUM DETECTORS AND TECHNOLOGIES
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 2nd Workshop on Germanium Detectors and Technologies
CY SEP 14-17, 2014
CL Univ S Dakota, South Dakota, SD
SP Natl Sci Fdn, S Dakota Governers Off Econ Dev, S Dakota Board Regents, S Dakota Small Business Innovat Res, Vermillion Area Chamber Commerce & Dev Co, Skysprings Nano Mat Inc
HO Univ S Dakota
ID DECAY
AB The goal of the Majorana Demonstrator project is to search for 0v beta beta decay in Ge-76. Of all candidate isotopes for 0v beta beta, Ge-76 has some of the most favorable characteristics. Germanium detectors are a well established technology, and in searches for 0v beta beta, the high purity germanium crystal acts simultaneously as source and detector. Furthermore, p-type germanium detectors provide excellent energy resolution and a specially designed point contact geometry allows for sensitive pulse shape discrimination. This paper will summarize the experiences the MAJORANA collaboration made with enriched germanium detectors manufactured by ORTEC (R)(R).
The process from production, to characterization and integration in MAJORANA mounting structure will be described. A summary of the performance of all enriched germanium detectors will be given.
C1 [Mertens, S.; Abgrall, N.; Chan, Y-D.; Poon, A. W. P.; Vetter, K.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Avignone, F. T., III; Guiseppe, V. E.; Tedeschi, D.; Wiseman, C.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Avignone, F. T., III; Bertrand, F. E.; Galindo-Uribarri, A.; Green, M. P.; Radford, D. C.; Varner, R. L.; White, B. R.; Wilkerson, J. F.; Yu, C-H.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Barabash, A. S.; Giovanetti, G. K.; Konovalov, S. I.; Yumatov, V.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Brudanin, V.; Shirchenko, M.; Vasilyev, S.; Yakushev, E.] Joint Inst Nucl Res, Dubna, Russia.
[Busch, M.] Duke Univ, Dept Phys, Durham, NC 27706 USA.
[Busch, M.; Giovanetti, G. K.; Henning, R.; Howe, M. A.; MacMullin, J.; Meijer, S. J.; O'Shaughnessy, C.; Rager, J.; Shanks, B.; Trimble, J. E.; Vorren, K.; Wilkerson, J. F.] Triangle Univ Nucl Lab, Durham, NC 27706 USA.
[Buuck, M.; Cuesta, C.; Detwiler, J. A.; Gruszko, J.; Guinn, I.; Leon, J.; Robertson, R. G. H.] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA.
[Buuck, M.; Cuesta, C.; Detwiler, J. A.; Gruszko, J.; Guinn, I.; Leon, J.; Robertson, R. G. H.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Byram, D.; Jasinski, B. R.; Martin, R. D.; Snyder, N.] Univ S Dakota, Dept Phys, Vermillion, SD 57069 USA.
[Christofferson, C. D.; Howard, S.; Suriano, A. M.] South Dakota Sch Mines & Technol, Rapid City, SD USA.
[Efremenko, Yu.; Romero-Romero, E.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Ejiri, H.] Osaka Univ, Nucl Phys Res Ctr, Ibaraki, Osaka, Japan.
[Ejiri, H.] Osaka Univ, Dept Phys, Ibaraki, Osaka, Japan.
[Elliott, S. R.; Goett, J.; Rielage, K.; Ronquest, M. C.; Xu, W.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Henning, R.; Howe, M. A.; MacMullin, J.; Meijer, S. J.; O'Shaughnessy, C.; Rager, J.; Shanks, B.; Trimble, J. E.; Vorren, K.; Wilkerson, J. F.] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC USA.
[Hoppe, E. W.; Kouzes, R. T.; LaFerriere, B. D.; Orrell, J. L.; Overman, N. R.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Keeter, K. J.] Black Hills State Univ, Dept Phys, Spearfish, SD 57799 USA.
[Kidd, M. F.] Tennessee Technol Univ, Cookeville, TN USA.
[Vetter, K.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
RP Mertens, S (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM smertens@lbl.gov
RI Barabash, Alexander/S-8851-2016;
OI Rielage, Keith/0000-0002-7392-7152; Cuesta, Clara/0000-0003-1190-7233
NR 11
TC 1
Z9 1
U1 3
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 606
AR 012005
DI 10.1088/1742-6596/606/1/012005
PG 11
WC Physics, Multidisciplinary
SC Physics
GA BC7AI
UT WOS:000354705800005
ER
PT S
AU Stave, S
AF Stave, S.
GP IOP
TI Germanium Detectors in Homeland Security at PNNL
SO 2ND WORKSHOP ON GERMANIUM DETECTORS AND TECHNOLOGIES
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 2nd Workshop on Germanium Detectors and Technologies
CY SEP 14-17, 2014
CL Univ S Dakota, South Dakota, SD
SP Natl Sci Fdn, S Dakota Governers Off Econ Dev, S Dakota Board Regents, S Dakota Small Business Innovat Res, Vermillion Area Chamber Commerce & Dev Co, Skysprings Nano Mat Inc
HO Univ S Dakota
AB Neutron and gamma-ray detection is used for non-proliferation and national security applications. While lower energy resolution detectors such as NaI(Tl) have their place, high purity germanium (HPGe) also has a role to play. A detection with HPGe is often a characterization due to the very high energy resolution. However, HPGe crystals remain small and expensive leaving arrays of smaller crystals as an excellent solution. PNNL has developed two similar HPGe arrays for two very different applications. One array, the Multisensor Aerial Radiation Survey (MARS) detector is a fieldable array that has been tested on trucks, boats, and helicopters. The CASCADES HPGe array is an array designed to assay samples in a low background environment. The history of HPGe arrays at PNNL and the development of MARS and CASCADES will be detailed in this paper along with some of the other applications of HPGe at PNNL.
C1 [Stave, S.] Pacific Northwest Natl Lab, Richland, WA 99352 USA.
RP Stave, S (reprint author), 902 Battelle Blvd,POB 999,MSIN J4-65, Richland, WA 99352 USA.
EM Sean.Stave@pnnl.gov
NR 7
TC 0
Z9 0
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 606
AR 012018
DI 10.1088/1742-6596/606/1/012018
PG 7
WC Physics, Multidisciplinary
SC Physics
GA BC7AI
UT WOS:000354705800018
ER
PT S
AU Xu, W
Abgra, N
Avignone, FT
Barabash, AS
Bertrand, FE
Brudanin, V
Busch, M
Buuck, M
Byrami, D
Caldwe, AS
Chan, YD
Christofferson, CD
Cuesta, C
Detwiler, JA
Efremenko, Y
Ejiri, H
Elliott, SR
Galindo-Uribarri, A
Giovanetti, GK
Goett, J
Green, MP
Gruszko, J
Guinn, I
Guiseppe, VE
Henning, R
Hoppe, EW
Howard, S
Howe, MA
Jasinski, BR
Keeter, KJ
Kidd, MF
Konovalov, SI
Kouzes, RT
LaFerriere, BD
Leon, J
MacMullin, J
Martin, RD
Meijer, SJ
Mertens, S
Orrell, JL
O'Shaughnessy, C
Overman, NR
Poon, AWP
Radford, DC
Rager, J
Rielage, K
Robertson, RGH
Romero-Romero, E
Ronquest, MC
Shanks, B
Shirchenko, M
Snyderm, N
Suriano, AM
Tedeschi, D
Trimble, JE
Varner, RL
Vasilyev, S
Vetter, K
Vorren, K
White, BR
Wilkerson, JF
Wiseman, C
Yakushev, E
Yu, CH
Yumatov, V
AF Xu, W.
Abgra, N.
Avignone, F. T., III
Barabash, A. S.
Bertrand, F. E.
Brudanin, V.
Busch, M.
Buuck, M.
Byrami, D.
Caldwe, A. S.
Chan, Y-D.
Christofferson, C. D.
Cuesta, C.
Detwiler, J. A.
Efremenko, Yu.
Ejiri, H.
Elliott, S. R.
Galindo-Uribarri, A.
Giovanetti, G. K.
Goett, J.
Green, M. P.
Gruszko, J.
Guinn, I.
Guiseppe, V. E.
Henning, R.
Hoppe, E. W.
Howard, S.
Howe, M. A.
Jasinski, B. R.
Keeter, K. J.
Kidd, M. F.
Konovalov, S. I.
Kouzes, R. T.
LaFerriere, B. D.
Leon, J.
MacMullin, J.
Martin, R. D.
Meijer, S. J.
Mertens, S.
Orrell, J. L.
O'Shaughnessy, C.
Overman, N. R.
Poon, A. W. P.
Radford, D. C.
Rager, J.
Rielage, K.
Robertson, R. G. H.
Romero-Romero, E.
Ronquest, M. C.
Shanks, B.
Shirchenko, M.
Snyderm, N.
Suriano, A. M.
Tedeschi, D.
Trimble, J. E.
Varner, R. L.
Vasilyev, S.
Vetter, K.
Vorren, K.
White, B. R.
Wilkerson, J. F.
Wiseman, C.
Yakushev, E.
Yu, C-H.
Yumatov, V.
CA MAJORANA Collaboration
GP IOP
TI The MAJORANA DEMONSTRATOR: A Search for Neutrino less Double-beta Decay
of Ge-76
SO 2ND WORKSHOP ON GERMANIUM DETECTORS AND TECHNOLOGIES
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 2nd Workshop on Germanium Detectors and Technologies
CY SEP 14-17, 2014
CL Univ S Dakota, South Dakota, SD
SP Natl Sci Fdn, S Dakota Governers Off Econ Dev, S Dakota Board Regents, S Dakota Small Business Innovat Res, Vermillion Area Chamber Commerce & Dev Co, Skysprings Nano Mat Inc
HO Univ S Dakota
ID DETECTOR
AB Neutrino less double-beta (Ov beta beta) decay is a hypothesized process where in some even-even nuclei it might be possible for two neutrons to simultaneously decay into two protons and two electrons without emitting neutrinos. This is possible only if neutrinos are Majorana particles, i.e. fermions that are their own antiparticles. Neutrinos being Majorana particles would explicitly violate lepton number conservation, and might play a role in the matter-antimatter asymmetry in the universe. The observation of neutrinoless double-beta decay would also provide complementary information related to neutrino masses. The MAJORANA Collaboration is constructing the MAJORANA DEMONSTRATOR, with a total of 40-kg Germanium detectors, to search for the Ov beta beta decay of Ge-76 and to demonstrate a background rate at or below 3 counts/ (ROI.t.y) in the 4 keV region of interest (ROT) around the 2039 keV Q-value for Ge-76 Ov beta beta decay. In this paper, we discuss the physics of neutrinoless double beta decay and then focus on the MAJORANA DEMONSTRATOR, including its design and approach to achieve ultra-low backgrounds and the status of the experiment.
C1 [Xu, W.; Elliott, S. R.; Goett, J.; Rielage, K.; Ronquest, M. C.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Abgra, N.; Chan, Y-D.; Mertens, S.; Vetter, K.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Avignone, F. T., III; Guiseppe, V. E.; Tedeschi, D.; Wiseman, C.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Avignone, F. T., III; Bertrand, F. E.; Galindo-Uribarri, A.; Green, M. P.; Radford, D. C.; Romero-Romero, E.; Varner, R. L.; White, B. R.; Wilkerson, J. F.; Yu, C-H.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Barabash, A. S.; Konovalov, S. I.; Yumatov, V.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Brudanin, V.; Shirchenko, M.; Vasilyev, S.; Yakushev, E.] Joint Inst Nucl Res, Dubna, Russia.
[Busch, M.] Duke Univ, Dept Phys, Durham, NC 27706 USA.
[Busch, M.; Giovanetti, G. K.; Henning, R.; Howe, M. A.; MacMullin, J.; Meijer, S. J.; O'Shaughnessy, C.; Rager, J.; Shanks, B.; Trimble, J. E.; Vorren, K.; Wilkerson, J. F.] Triangle Univ Nucl Lab, Durham, NC 27706 USA.
[Buuck, M.; Cuesta, C.; Detwiler, J. A.; Gruszko, J.; Guinn, I.; Leon, J.; Robertson, R. G. H.] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA.
[Buuck, M.; Cuesta, C.; Detwiler, J. A.; Gruszko, J.; Guinn, I.; Leon, J.; Robertson, R. G. H.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Byrami, D.; Jasinski, B. R.; Martin, R. D.; Snyderm, N.] Univ S Dakota, Dept Phys, Vermillion, SD 57069 USA.
[Caldwe, A. S.; Christofferson, C. D.; Howard, S.; Suriano, A. M.] South Dakota Sch Mines & Technol, Rapid City, SD USA.
[Efremenko, Yu.; Romero-Romero, E.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Ejiri, H.] Osaka Univ, Res Ctr Nucl Phys, Ibaraki, Osaka, Japan.
[Ejiri, H.] Osaka Univ, Dept Phys, Ibaraki, Osaka, Japan.
[Henning, R.; MacMullin, J.; Meijer, S. J.; O'Shaughnessy, C.; Rager, J.; Shanks, B.; Trimble, J. E.; Vorren, K.; Wilkerson, J. F.] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC USA.
[Hoppe, E. W.; Kouzes, R. T.; LaFerriere, B. D.; Orrell, J. L.; Overman, N. R.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Keeter, K. J.] Black Hills State Univ, Dept Phys, Spearfish, SD 57799 USA.
[Kidd, M. F.] Tennessee Technol Univ, Cookeville, TN USA.
[Giovanetti, G. K.; Henning, R.; Howe, M. A.; MacMullin, J.; Meijer, S. J.; O'Shaughnessy, C.; Rager, J.; Vetter, K.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
RP Xu, W (reprint author), Los Alamos Natl Lab, Los Alamos, NM USA.
EM wxu@lanl.gov
RI Cuesta, Clara/L-5466-2014
OI Cuesta, Clara/0000-0003-1190-7233
NR 20
TC 3
Z9 3
U1 2
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 606
AR UNSP 012004
DI 10.1088/1742-6596/606/1/012004
PG 9
WC Physics, Multidisciplinary
SC Physics
GA BC7AI
UT WOS:000354705800004
ER
PT S
AU Mitra, I
Mahadevapuram, N
Strzalka, J
Stein, GE
AF Mitra, Indranil
Mahadevapuram, Nikhila
Strzalka, Joseph
Stein, Gila E.
BE Resnick, DJ
Bencher, C
TI Tilting of Lamellar Domains on Neutral Random Copolymer Brushes
SO ALTERNATIVE LITHOGRAPHIC TECHNOLOGIES VII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Alternative Lithographic Technologies VII
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
DE block copolymer; domain orientation; self-assembly;
poly(styrene-b-methyl methacrylate); grazing incidence small-angle X-ray
scattering; preferential substrate; defects; lithography
ID BLOCK-COPOLYMERS; THIN-FILMS; LITHOGRAPHY; PATTERNS; SURFACE
AB Thin films of lamellar poly(styrene-b-methyl methacrylate) (PS-PMMA) block copolymers were prepared on brushed silicon substrates with a range of thicknesses. The brushes are expected to eliminate preferential interactions at the substrate, thereby enabling perpendicular domain orientations relative to the interfaces. Using a combination of surface microscopy and grazing incidence small-angle X-ray scattering, we demonstrate that i) the brushed substrates are weakly preferential to PMMA; and ii) the average lamellar domain orientation is perpendicular to the substrate, but some domains are mis-oriented by up to 40 degrees. We propose that PMMA domains deform to increase their contact area at the slightly preferential substrate, and this behavior drives the formation of out-of-plane defects such as bent or tilted domains. These outcomes suggest that depth-resolved measurements are needed to fully optimize materials and processes for block copolymer lithography.
C1 [Mitra, Indranil; Mahadevapuram, Nikhila; Stein, Gila E.] Univ Houston, Dept Chem & Biomol Engn, Houston, TX 77204 USA.
[Strzalka, Joseph] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
RP Mitra, I (reprint author), Univ Houston, Dept Chem & Biomol Engn, Houston, TX 77204 USA.
EM gestein@central.uh.edu
RI Stein, Gila/P-1927-2016
OI Stein, Gila/0000-0002-3973-4496
NR 14
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-525-4
J9 PROC SPIE
PY 2015
VL 9423
AR 942320
DI 10.1117/12.2085676
PG 6
WC Optics; Physics, Applied; Imaging Science & Photographic Technology
SC Optics; Physics; Imaging Science & Photographic Technology
GA BC6NR
UT WOS:000354204900052
ER
PT J
AU Kirchner, TB
Strickhouser, RB
Hatab, NA
Charlton, JJ
Kravchenko, II
Lavrik, NV
Sepaniak, MJ
AF Kirchner, Teresa B.
Strickhouser, Rachel B.
Hatab, Nahla A.
Charlton, Jennifer J.
Kravchenko, Ivan I.
Lavrik, Nickolay V.
Sepaniak, Michael J.
TI Nanoscale pillar arrays for separations
SO ANALYST
LA English
DT Article
ID THIN-LAYER-CHROMATOGRAPHY; STATIONARY PHASES; SURFACES
AB The work presented herein evaluates silicon nano-pillar arrays for use in planar chromatography. Electron beam lithography and metal thermal dewetting protocols were used to create nano-thin layer chromatography platforms. With these fabrication methods we are able to reduce the size of the characteristic features in a separation medium below that used in ultra-thin layer chromatography; i.e. pillar heights are 1-2 mu m and pillar diameters are typically in the 200-400 nm range. In addition to the intrinsic nanoscale aspects of the systems, it is shown they can be further functionalized with nanoporous layers and traditional stationary phases for chromatography; hence exhibit broad-ranging lab-ona- chip and point-of-care potential. Because of an inherent high permeability and very small effective mass transfer distance between pillars, chromatographic efficiency can be very high but is enhanced herein by stacking during development and focusing while drying, yielding plate heights in the nm range separated band volumes. Practical separations of fluorescent dyes, fluorescently derivatized amines, and anti-tumor drugs are illustrated.
C1 [Kirchner, Teresa B.; Strickhouser, Rachel B.; Hatab, Nahla A.; Charlton, Jennifer J.; Sepaniak, Michael J.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Charlton, Jennifer J.] Analyt Chem Org, Y Natl Secur Complex 12, Oak Ridge, TN 37830 USA.
[Kravchenko, Ivan I.; Lavrik, Nickolay V.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37830 USA.
RP Sepaniak, MJ (reprint author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
EM sepaniak@ion.chem.utk.edu
RI Kravchenko, Ivan/K-3022-2015; Lavrik, Nickolay/B-5268-2011
OI Kravchenko, Ivan/0000-0003-4999-5822; Lavrik,
Nickolay/0000-0002-9543-5634
FU National Science Foundation [1144947]; University of Tennessee,
Knoxville; Scientific User Facilities Division, Office of Basic Energy
Sciences, U.S. Department of Energy
FX This material is based upon work supported by the National Science
Foundation under grant no. 1144947 with the University of Tennessee,
Knoxville. A portion of this research was conducted at the Center for
Nanophase Materials Sciences, which is sponsored at Oak Ridge National
Laboratory by the Scientific User Facilities Division, Office of Basic
Energy Sciences, U.S. Department of Energy.
NR 28
TC 4
Z9 4
U1 0
U2 15
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0003-2654
EI 1364-5528
J9 ANALYST
JI Analyst
PY 2015
VL 140
IS 10
BP 3347
EP 3351
DI 10.1039/c4an02187h
PG 5
WC Chemistry, Analytical
SC Chemistry
GA CH7CF
UT WOS:000354192500006
PM 25857214
ER
PT J
AU Motkuri, RK
Thallapally, PK
Annapureddy, HVR
Dang, LX
Krishna, R
Nune, SK
Fernandez, CA
Liu, J
McGrail, BP
AF Motkuri, Radha Kishan
Thallapally, Praveen K.
Annapureddy, Harsha V. R.
Dang, Liem X.
Krishna, Rajamani
Nune, Satish K.
Fernandez, Carlos A.
Liu, Jian
McGrail, B. Peter
TI Separation of polar compounds using a flexible metal-organic framework
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID GAS-CHROMATOGRAPHIC SEPARATION; PORE-SIZE; ADSORPTION; ALCOHOLS; WATER;
ISOMERS; MOFS; MIL-101; STORAGE; LIGAND
AB A flexible metal-organic framework constructed from a flexible linker is shown to possess the capability of separating mixtures of polar compounds (propanol isomers) by exploiting the differences in the saturation capacities of the constituents. Transient breakthrough simulations show that these sorption-based separations are in favor of the component with higher saturation capacity.
C1 [Motkuri, Radha Kishan; Nune, Satish K.; Fernandez, Carlos A.; Liu, Jian; McGrail, B. Peter] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
[Thallapally, Praveen K.; Annapureddy, Harsha V. R.; Dang, Liem X.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
[Krishna, Rajamani] Univ Amsterdam, von t Hoff Inst Mol Sci, NL-1012 WX Amsterdam, Netherlands.
RP Motkuri, RK (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
EM radhakishan.motkuri@pnnl.gov; praveen.thallapally@pnnl.gov;
r.krishna@contact.uva.nl
RI Krishna, Rajamani/A-1098-2012; Motkuri, Radha/F-1041-2014; Liu,
Jian/C-4707-2011; Liu, Jian/D-3393-2009
OI Thallapally, Praveen Kumar/0000-0001-7814-4467; Krishna,
Rajamani/0000-0002-4784-8530; Motkuri, Radha/0000-0002-2079-4798; Liu,
Jian/0000-0001-5329-7408; Liu, Jian/0000-0001-5329-7408
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences, Division of Chemical Sciences, Geosciences, and Biosciences;
U.S. Department of Energy [DE-AC05-76RL01830]
FX This work was performed at the Pacific Northwest National Laboratory
(PNNL) and was supported by the U.S. Department of Energy (DOE). L.X.D.
acknowledges funding from the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, Division of Chemical Sciences,
Geosciences, and Biosciences. PNNL is operated by Battelle for the U.S.
Department of Energy under Contract DE-AC05-76RL01830.
NR 39
TC 11
Z9 11
U1 7
U2 48
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 40
BP 8421
EP 8424
DI 10.1039/c5cc00113g
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CH4ZL
UT WOS:000354043200005
PM 25728866
ER
PT J
AU Wu, LC
Nielsen, MB
Bremholm, M
Madsen, SR
Overgaard, J
Newville, M
Chen, YS
Iversen, BB
AF Wu, Lai-Chin
Nielsen, Morten Bormann
Bremholm, Martin
Madsen, Solveig Rogild
Overgaard, Jacob
Newville, Matt
Chen, Yu-Sheng
Iversen, Bo Brummerstedt
TI High pressure induced charge transfer in 3d-4f bimetallic photomagnetic
materials
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID X-RAY-ABSORPTION; PRUSSIAN BLUE ANALOGS; DIAMOND-ANVIL CELL;
PHOTOINDUCED FERRIMAGNETIC SYSTEMS; FINE-STRUCTURE SPECTROSCOPY; FE
K-EDGE; SINGLE-CRYSTAL; NONHYDROSTATIC PRESSURE; LINKAGE ISOMERISM;
ALKALI CATION
AB Pressure-induced crystal color change of photo-magnetic materials [Ln(DMF)(4)(H2O)(3)(mu-CN)M(CN)(5)]center dot H2O, Ln = Y, M = Fe (1), Ln = Y, M = Co (2), Ln = Nd, M = Fe (3) (DMF = N,N-dimethyl formamide) are investigated using variable pressure X-ray Absorption Near-Edge Structure (XANES) spectroscopy and X-ray diffraction. For 1 the effect is caused by ligand-to-metal charge transfer (LMCT) on the iron site.
C1 [Wu, Lai-Chin; Nielsen, Morten Bormann; Bremholm, Martin; Madsen, Solveig Rogild; Overgaard, Jacob; Iversen, Bo Brummerstedt] Univ Aarhus, Ctr Mat Crystallog, Dept Chem, DK-8000 Aarhus C, Denmark.
[Wu, Lai-Chin; Nielsen, Morten Bormann; Bremholm, Martin; Madsen, Solveig Rogild; Overgaard, Jacob; Iversen, Bo Brummerstedt] Univ Aarhus, iNANO, DK-8000 Aarhus C, Denmark.
[Newville, Matt] Univ Chicago, GSECARS Beam Line, Adv Photon Source, Argonne, IL 60439 USA.
[Chen, Yu-Sheng] Univ Chicago, ChemMatCARS Beam Line, Adv Photon Source, Argonne, IL 60439 USA.
RP Iversen, BB (reprint author), Univ Aarhus, Ctr Mat Crystallog, Dept Chem, DK-8000 Aarhus C, Denmark.
EM bo@chem.au.dk
OI Overgaard, Jacob/0000-0001-6492-7962
FU Danish National Research Foundation [DNRF93]; National Science
Foundation [EAR-1128799]; Department of Energy (DOE)
[DE-FG02-94ER14466]; DOE [DE-AC02-06CH11357]
FX The work was supported by the Danish National Research Foundation
(DNRF93). Portions of this work were performed at GSECARS (Sector 13),
APS, ANL, which is supported by the National Science Foundation
(EAR-1128799) and Department of Energy (DOE) (DE-FG02-94ER14466). Use of
the APS was supported by the DOE under Contract No. DE-AC02-06CH11357.
NR 45
TC 1
Z9 1
U1 8
U2 50
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 42
BP 8868
EP 8871
DI 10.1039/c5cc00603a
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CI1CG
UT WOS:000354477600034
PM 25925160
ER
PT J
AU Zhang, PF
Qiao, ZA
Dai, S
AF Zhang, Pengfei
Qiao, Zhen-An
Dai, Sheng
TI Recent advances in carbon nanospheres: synthetic routes and applications
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID NITROGEN-DOPED CARBON; CHEMICAL-VAPOR-DEPOSITION; OXYGEN REDUCTION
REACTION; RESORCINOL-FORMALDEHYDE RESIN; CAPACITIVE ENERGY-STORAGE;
MESOPOROUS CARBON; HYDROTHERMAL CARBONIZATION; POROUS CARBON; STOBER
METHOD; HOLLOW SPHERES
AB Carbon-based materials are the most popular material types in both fundamental research and industrial applications, partly because of their well-controlled nano-morphologies. In the past two decades, we have witnessed a number of breakthroughs in carbon research: fullerenes, carbon nanotubes, and more recently graphene. Nowadays, carbon nanospheres are attracting more and more attention worldwide due to their excellent performance in various fields: drug delivery, heterogeneous catalysis, encapsulation of support and electrode materials. Actually, spherical carbon is an old material, whereas controlling carbon spheres in the nanometer range is a recent story. In the past 5 years, it has become possible to precisely control the particle size, surface area, pore size, chemical composition, and dispersity of carbon nanospheres. Toward this end, a number of synthetic strategies are emerging, such as hydrothermal carbonization of biomass-based resources, extended Stober synthesis, and organic-organic self-assembly via different binding methods. In this feature article, we summarize recent routes for carbon nanospheres and briefly touch on their applications to shed light on the potential of this field. Throughout this article, a special emphasis is placed on the possible modulation of spherical structures at the nanoscale, and we wish to inspire many more designs and applications of carbon nanostructures in the near future.
C1 [Zhang, Pengfei; Qiao, Zhen-An; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37830 USA.
[Dai, Sheng] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
RP Dai, S (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37830 USA.
EM dais@ornl.gov
RI Dai, Sheng/K-8411-2015; Zhang, Pengfei/I-5484-2013;
OI Dai, Sheng/0000-0002-8046-3931; Qiao, Zhen-An/0000-0001-6064-9360
FU Fluid Interface Reactions, Structures and Transport (FIRST) Center, an
Energy Frontier Research Center - US Department of Energy, Office of
Science, Office of Basic Energy Sciences
FX P. F. Zhang and S. Dai. were supported as part of the Fluid Interface
Reactions, Structures and Transport (FIRST) Center, an Energy Frontier
Research Center funded by the US Department of Energy, Office of
Science, Office of Basic Energy Sciences.
NR 135
TC 30
Z9 30
U1 41
U2 256
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 45
BP 9246
EP 9256
DI 10.1039/c5cc01759a
PG 11
WC Chemistry, Multidisciplinary
SC Chemistry
GA CI8CZ
UT WOS:000354997400001
PM 25871563
ER
PT J
AU Thomas, AW
Catania, C
Garner, LE
Bazan, GC
AF Thomas, A. W.
Catania, C.
Garner, L. E.
Bazan, G. C.
TI Pendant ionic groups of conjugated oligoelectrolytes govern their
ability to intercalate into microbial membranes
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID ELECTRON-TRANSFER; FUEL-CELLS; SHEWANELLA-ONEIDENSIS; BILAYER-MEMBRANES;
ESCHERICHIA-COLI; GENERATION; OLIGOTHIOPHENES; ASSIGNMENT; MOLECULES;
OLIGOMERS
AB Conjugated oligoelectrolytes (COEs) bearing pyridinium and carboxylate groups are synthesized, characterized, and compared to the trimethylammonium analogue from which they are derived. All COEs are able to spontaneously intercalate into liposomes, whereas only positively charged COEs intercalate into E. coli membranes. Membrane intercalation is determined necessary for performance enhancement in microbial fuel cells.
C1 [Thomas, A. W.; Bazan, G. C.] Univ Calif Santa Barbara, Ctr Polymers & Organ Solids, Dept Chem & Biochem, Santa Barbara, CA 93106 USA.
[Catania, C.; Bazan, G. C.] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA.
[Garner, L. E.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Bazan, GC (reprint author), Univ Calif Santa Barbara, Ctr Polymers & Organ Solids, Dept Chem & Biochem, Santa Barbara, CA 93106 USA.
EM bazan@chem.ucsb.edu
RI Bazan, Guillermo/B-7625-2014
FU Institute for Collaborative Biotechnologies through grant from the U.S.
Army Research Office [W911NF-09-0001]
FX This work was supported by the Institute for Collaborative
Biotechnologies through grant W911NF-09-0001 from the U.S. Army Research
Office.
NR 38
TC 6
Z9 6
U1 4
U2 14
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
EI 1364-548X
J9 CHEM COMMUN
JI Chem. Commun.
PY 2015
VL 51
IS 45
BP 9294
EP 9297
DI 10.1039/c5cc01724f
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA CI8CZ
UT WOS:000354997400012
PM 25960368
ER
PT J
AU Lee, M
Shin, SM
Jeong, N
Thallapally, PK
AF Lee, Misun
Shin, Sung Min
Jeong, Nakcheol
Thallapally, Praveen K.
TI Chiral environment of catalytic sites in the chiral metal-organic
frameworks
SO DALTON TRANSACTIONS
LA English
DT Article
ID HETEROGENEOUS ASYMMETRIC CATALYSIS; LEWIS ACID; CYCLIZATION; MOFS
AB Chiral metal-organic frameworks are considered a useful platform in heterogeneous catalysis for enantioselective chemical transformations. However, it has been observed that the enantioselectivity is sensitive to the site at which the reaction takes place, even in a single crystal, since the chiral environment of the catalytic site varies according to its location, e. g., that of the surface is anisotropic, whereas that of the interior is isotropic.
C1 [Lee, Misun; Shin, Sung Min; Jeong, Nakcheol] Korea Univ, Dept Chem, Seoul 136701, South Korea.
[Thallapally, Praveen K.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Jeong, N (reprint author), Korea Univ, Dept Chem, Seoul 136701, South Korea.
EM njeong@korea.ac.kr; Praveen.thallapally@pnnl.gov
OI Thallapally, Praveen Kumar/0000-0001-7814-4467
FU National Research Foundation of Korea (NRF) grant - Korea government
(MSIP) [2011-0016303, 2009-0053318]; MEST; POSTECH
FX This work was supported by a National Research Foundation of Korea (NRF)
grant (2011-0016303 and 2009-0053318) funded by the Korea government
(MSIP). Experiments at PAL (beamline 2D) were supported in part by MEST
and POSTECH.
NR 18
TC 5
Z9 5
U1 3
U2 23
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 20
BP 9349
EP 9352
DI 10.1039/c5dt01322d
PG 4
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CI8DS
UT WOS:000354999800001
PM 25912165
ER
PT J
AU Naguib, M
Unocic, RR
Armstrong, BL
Nanda, J
AF Naguib, Michael
Unocic, Raymond R.
Armstrong, Beth L.
Nanda, Jagjit
TI Large-scale delamination of multi-layers transition metal carbides and
carbonitrides "MXenes"
SO DALTON TRANSACTIONS
LA English
DT Article
ID 2-DIMENSIONAL TITANIUM CARBIDE; HIGH VOLUMETRIC CAPACITANCE; LITHIUM-ION
BATTERIES; TI3C2X2 X; EXFOLIATION; NANOSHEETS; LI; INTERCALATION;
GRAPHENE; FILMS
AB Herein we report on a general approach to delaminate multilayered MXenes using an organic base to induce swelling that in turn weakens the bonds between the MX layers. Simple agitation or mild sonication of the swollen MXene in water resulted in the large-scale delamination of the MXene layers. The delamination method is demonstrated for vanadium carbide and titanium carbonitride MXenes.
C1 [Naguib, Michael; Armstrong, Beth L.; Nanda, Jagjit] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Unocic, Raymond R.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Naguib, M (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
EM naguibma@ornl.gov
RI Armstrong, Beth/E-6752-2017;
OI Armstrong, Beth/0000-0001-7149-3576; Unocic,
Raymond/0000-0002-1777-8228; Naguib, Michael/0000-0002-4952-9023
FU Laboratory Directed Research and Development Program of Oak Ridge
National Laboratory
FX This work was supported 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. Microscopy
conducted as part of a user proposal at ORNL's Center for Nanophase
Materials Sciences (CNMS), which is a DOE Office of Science User
Facility.
NR 37
TC 22
Z9 22
U1 35
U2 191
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 20
BP 9353
EP 9358
DI 10.1039/c5dt01247c
PG 6
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CI8DS
UT WOS:000354999800005
PM 25912071
ER
PT S
AU Bhattarai, S
Neureuther, AR
Naulleau, PP
AF Bhattarai, Suchit
Neureuther, Andrew R.
Naulleau, Patrick P.
BE Wood, OR
Panning, EM
TI Simulation Study of the Influence of PEB Reaction Rates on Resist LER
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
DE Chemically amplified resist; LER; Stochastic Models; Reaction/Diffusion
Systems
AB A stochastic resist simulator has first been calibrated to experimental results performed on a commercially available EUV resist, and subsequently has been used to study the influence of acid/base quenching rate and the polymer deprotection rate on resist LER for 22 nm half-pitch lines/spaces. Results indicate that larger quenching rates and smaller deprotection rates result in improved LER performance by causing an increase in the dose to size. With nominal quenching rate determined from literature, halving the deprotection rate relative to nominal value reduces the LER by 33%, while the dose to size increases by 2x. With nominal deprotection rate determined from literature, results indicate a low sensitivity of LER to quenching rate. Expected noise at the line edge calculated by using a shot noise model accounting for absorbed photons, acid, and base count, provides a good explanation for the LER trends calculated for several reaction rate scenarios.
C1 [Bhattarai, Suchit; Neureuther, Andrew R.] Univ Calif Berkeley, Dept EECS, Berkeley, CA 94720 USA.
[Bhattarai, Suchit; Neureuther, Andrew R.; Naulleau, Patrick P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
RP Bhattarai, S (reprint author), Univ Calif Berkeley, Dept EECS, Berkeley, CA 94720 USA.
NR 7
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
AR 94222I
DI 10.1117/12.2087566
PG 7
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900080
ER
PT S
AU Bhattarai, S
Chao, WL
Aloni, S
Neureuther, AR
Naulleau, PP
AF Bhattarai, Suchit
Chao, Weilun
Aloni, Shaul
Neureuther, Andrew R.
Naulleau, Patrick P.
BE Wood, OR
Panning, EM
TI Analysis of Shot Noise Limitations due to Absorption Count in EUV
Resists
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
DE 100 keV e-beam; EUV; chemically amplified resist; shot noise; LER;
Electron energy loss spectroscopy (EELS); exposure latitude
ID ELECTRON-BEAM LITHOGRAPHY
AB Both fundamental measurements of resist exposure events and measurements of line-edge roughness for similar exposure latitude images for e-beam and EUV patterning tools have been used to assess the relative role of exposure shot-noise in lithographic performance. Electron energy loss spectroscopy (EELS) has been performed to quantify the probability of absorption of 100 keV electrons in two commercially available EUV resists. About 1/3 of the incident electrons lose at least 2 eV in the materials and this absorption probability is larger than that for EUV photons in the two modern EUV resists. Exposure event count densities between EUV and e-beam differ by 11-13%, which results in an expected difference in the variation in exposure shot noise of only 6%. With matched image exposure latitudes and accounting for EUV mask LER contribution the measured LER distributions indicate a high (76% and 94%) confidence that EUV resist performance is currently not dominated by exposure event counts for two leading chemically amplified EUV resists.
C1 [Bhattarai, Suchit; Neureuther, Andrew R.] Univ Calif Berkeley, Dept EECS, Berkeley, CA 94720 USA.
[Bhattarai, Suchit; Chao, Weilun; Neureuther, Andrew R.; Naulleau, Patrick P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
[Aloni, Shaul] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Bhattarai, S (reprint author), Univ Calif Berkeley, Dept EECS, Berkeley, CA 94720 USA.
NR 8
TC 1
Z9 1
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
AR 942209
DI 10.1117/12.2087303
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900006
ER
PT S
AU Claus, RA
Wang, YG
Wojdyla, A
Benk, MP
Goldberg, KA
Neureuther, AR
Naulleau, PP
Waller, L
AF Claus, Rene A.
Wang, Yow-Gwo
Wojdyla, Antoine
Benk, Markus P.
Goldberg, Kenneth A.
Neureuther, Andrew R.
Naulleau, Patrick P.
Waller, Laura
BE Wood, OR
Panning, EM
TI Phase measurements of EUV mask defects
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
DE Extreme Ultraviolet Lithography; Multi layer Defect; Phase Defect;
Quantitative Phase Imaging; Weak Object Transfer Function
AB Extreme Ultraviolet (EUV) Lithography mask defects were examined on the actinic mask imaging system, SHARP, at Lawrence Berkeley National Laboratory. A quantitative phase retrieval algorithm based on the Weak Object Transfer Function was applied to the measured through-focus aerial images to examine the amplitude and phase of the defects. The accuracy of the algorithm was demonstrated by comparing the results of measurements using a phase contrast zone plate and a standard zone plate. Using partially coherent illumination to measure frequencies that would otherwise fall outside the numerical aperture (NA), it was shown that some defects are smaller than the conventional resolution of the microscope. Programmed defects of various sizes were measured and shown to have both an amplitude and a phase component that the algorithm is able to recover.
C1 [Claus, Rene A.] Univ Calif Berkeley, Appl Sci & Technol, Berkeley, CA 94720 USA.
[Wang, Yow-Gwo; Neureuther, Andrew R.; Waller, Laura] Univ Calif Berkeley, EECS, Berkeley, CA 94720 USA.
[Wojdyla, Antoine; Benk, Markus P.; Goldberg, Kenneth A.; Naulleau, Patrick P.] Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA USA.
RP Claus, RA (reprint author), Univ Calif Berkeley, Appl Sci & Technol, Berkeley, CA 94720 USA.
EM reneclaus@gmail.com
NR 9
TC 0
Z9 0
U1 2
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
DI 10.1117/12.2087195
PG 6
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900040
ER
PT S
AU Claus, RA
Wojdyla, A
Benk, MP
Goldberg, KA
Neureuther, AR
Naulleau, PP
Waller, L
AF Claus, Rene A.
Wojdyla, Antoine
Benk, Markus P.
Goldberg, Kenneth A.
Neureuther, Andrew R.
Naulleau, Patrick P.
Waller, Laura
BE Wood, OR
Panning, EM
TI Aberration estimation using EUV mask roughness
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
DE Extreme Ultraviolet Lithography; Mask Roughness; Aberration Recovery;
Quantitative Phase Imaging
AB We present a method to extract aberrations from through-focus aerial images of mask roughness on an Extreme Ultraviolet (EUV) lithography mask. The algorithm uses a phase recovery algorithm based on the Weak Object Transfer Function to recover the phase and amplitude of the roughness, while considering aberrations and partially coherent illumination. Using the self-consistency of the recovered object, aberrations, and measured images as a metric, we optimize over the space of aberrations to estimate aberrations. Partially coherent illumination is needed to allow the effects of the object field and aberrations to be separated. We apply the algorithm to the EUV aerial image microscope, SHARP, using a parameterized ray tracing model to calculate the aberrations from a lower dimensional parameter space.
C1 [Claus, Rene A.] Univ Calif Berkeley, Appl Sci & Technol, Berkeley, CA 94720 USA.
[Wojdyla, Antoine; Benk, Markus P.; Goldberg, Kenneth A.; Naulleau, Patrick P.] Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA USA.
[Neureuther, Andrew R.; Waller, Laura] Univ Calif Berkeley, EECS, Berkeley, CA 94720 USA.
RP Claus, RA (reprint author), Univ Calif Berkeley, Appl Sci & Technol, Berkeley, CA 94720 USA.
EM reneclaus@gmail.com
NR 7
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
DI 10.1117/12.2087513
PG 6
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900037
ER
PT S
AU Goldberg, KA
Benk, MP
Wojdyla, A
Johnson, DG
Donoghue, AP
AF Goldberg, Kenneth A.
Benk, Markus P.
Wojdyla, Antoine
Johnson, David G.
Donoghue, Alexander P.
BE Wood, OR
Panning, EM
TI New Ways of Looking at Masks with the SHARP EUV Microscope
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
DE EUV; mask; microscope; actinic; illumination; phase; resolution; zone
plate
ID DIFFERENTIAL PHASE-CONTRAST; HIGH-RESOLUTION; LED ARRAY; ILLUMINATION;
ASYMMETRY
AB Extreme ultraviolet (EUV) microscopy is invaluable for the development of EUV photomasks, providing detailed information for the creation of new mask processes, and reliable feedback for comparison with printing studies. The SHARP microscope at Lawrence Berkeley National Laboratory is dedicated to photomask research. It was developed with forward-looking specifications that make it well suited to the emulation of current EUV lithography tools and a variety of possible future directions. Some recent examples include (1) the demonstration of imaging with 4x numerical aperture values up to 0.625, measuring patterns with feature sizes down to 30-nm half-pitch, created with a tin-based photoresist serving as the absorber. (2) The emulation of complex, free-form illuminators used in source-mask optimization, including grayscale pupil fills. (3) Point by point phase measurement from aerial image measurements using several techniques. (4) Direct observation of non-telecentric, through-focus imaging effects that arise from the angular-dependence of the mask's multilayer coating properties. In addition, we are preparing to extend SHARP imaging to include anamorphic optics, an emerging area of EUV lithography research.
C1 [Goldberg, Kenneth A.; Benk, Markus P.; Wojdyla, Antoine; Johnson, David G.; Donoghue, Alexander P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Goldberg, KA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM KAGoldberg@lbl.gov
NR 39
TC 2
Z9 2
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
AR 94221A
DI 10.1117/12.2175553
PG 11
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900043
ER
PT S
AU Levinson, Z
Raghunathan, S
Verduijn, E
Wood, O
Mangat, P
Goldberg, K
Benk, M
Wojdyla, A
Philipsen, V
Hendrickx, E
Smith, BW
AF Levinson, Zac
Raghunathan, Sudhar
Verduijn, Erik
Wood, Obert
Mangat, Pawitter
Goldberg, Kenneth
Benk, Markus
Wojdyla, Antoine
Philipsen, Vicky
Hendrickx, Eric
Smith, Bruce W.
BE Wood, OR
Panning, EM
TI A Method of Image-Based Aberration Metrology for EUVL Tools
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
DE EUV lithography; EUV aberrations; EUV transmission function; aberration
metrology; image-based aberration metrology; pupil characterization
AB We present an approach to image-based EUV aberration metrology using binary mask targets and iterative model-based solutions to extract both the amplitude and phase components of the aberrated pupil function. The approach is enabled through previously developed modeling, fitting, and extraction algorithms. We examine the flexibility and criticality of the method using two experimental case studies. The first extracts the pupil phase behavior from an ASML NXE:3100 exposure system and shows primary aberration sensitivity below 0.2 m lambda. The second experiment extracts both components of the pupil function from the SHARP EUV microscope.
C1 [Levinson, Zac; Smith, Bruce W.] Rochester Inst Technol, Rochester, NY 14623 USA.
[Raghunathan, Sudhar; Verduijn, Erik; Wood, Obert; Mangat, Pawitter] GLOBALFOUNDRIES, Malta, NY 12020 USA.
[Goldberg, Kenneth; Benk, Markus; Wojdyla, Antoine] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Philipsen, Vicky; Hendrickx, Eric] IMEC, B-3001 Heverlee, Belgium.
RP Levinson, Z (reprint author), Rochester Inst Technol, 168 Lomb Mem Dr, Rochester, NY 14623 USA.
NR 28
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
DI 10.1117/12.2087177
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900038
ER
PT S
AU Miyakawa, R
Naulleau, P
AF Miyakawa, Ryan
Naulleau, Patrick
BE Wood, OR
Panning, EM
TI Extending shearing interferometry to high- NA for EUV optical testing
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
DE optical testing; wavefront; aberration; in-situ; focus sensor
AB Characterizing and removing optical aberrations remains a key part of achieving ultimate resolution in EUV exposure tools. Common-path approaches such as lateral shearing interferometry (LSI) have had success at moderate numerical apertures (NA approximate to 0.3); however, these techniques run into several obstacles when applied at higher NA (NA > 0.4). Chief among these obstacles are systematic aberrations due to high incident angles on the diffraction grating and non-planar Talbot surfaces that create regions of low fringe contrast across the pupil. In this paper, we present strategies for addressing these obstacles to extend LSI to high numerical apertures. These strategies will be employed in the installation and alignment of the 0.5-NA SEMATECH Berkeley Microfield Exposure Tool (MET5).
C1 [Miyakawa, Ryan; Naulleau, Patrick] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
RP Miyakawa, R (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM rhmiyakawa@lbl.gov
NR 3
TC 2
Z9 2
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
AR 94221J
DI 10.1117/12.2087568
PG 6
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900052
ER
PT S
AU Narasimhan, A
Grzeskowiak, S
Srivats, B
Herbol, H
Wisehart, L
Kelly, C
Earley, W
Ocola, LE
Neisser, M
Denbeaux, G
Brainard, RL
AF Narasimhan, Amrit
Grzeskowiak, Steven
Srivats, Bharath
Herbol, Henry
Wisehart, Liam
Kelly, Chris
Earley, William
Ocola, Leonidas E.
Neisser, Mark
Denbeaux, Greg
Brainard, Robert L.
BE Wood, OR
Panning, EM
TI Studying Secondary Electron Behavior in EUV Resists using
Experimentation and Modeling
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
AB EUV photons expose photoresists by complex interactions starting with photoionization that create primary electrons (similar to 80 eV), followed by ionization steps that create secondary electrons (10-60 eV). Ultimately, these lower energy electrons interact with specific molecules in the resist that cause the chemical reactions which are responsible for changes in solubility. The mechanisms by which these electrons interact with resist components are key to optimizing the performance of EUV resists. An electron exposure chamber was built to probe the behavior of electrons within photoresists. Upon exposure and development of a photoresist to an electron gun, ellipsometry was used to identify the dependence of electron penetration depth and number of reactions on dose and energy. Additionally, our group has updated a robust software that uses first-principles based Monte Carlo model called "LESiS", to track secondary electron production, penetration depth, and reaction mechanisms within materials-defined environments. LESiS was used to model the thickness loss experiments to validate its performance with respect to simulated electron penetration depths to inform future modeling work.
C1 [Narasimhan, Amrit; Grzeskowiak, Steven; Srivats, Bharath; Herbol, Henry; Wisehart, Liam; Kelly, Chris; Earley, William; Denbeaux, Greg; Brainard, Robert L.] Coll Nanoscale Sci & Engn, Albany, NY 12203 USA.
[Ocola, Leonidas E.] Argonne Natl Lab, Lemont, IL 60439 USA.
[Neisser, Mark] SEMATECH, Albany, NY 12203 USA.
RP Narasimhan, A (reprint author), Coll Nanoscale Sci & Engn, Albany, NY 12203 USA.
OI Ocola, Leonidas/0000-0003-4990-1064
NR 16
TC 4
Z9 4
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
AR 942208
DI 10.1117/12.2086596
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900005
ER
PT S
AU Neisser, M
Cummings, K
Valente, S
Montgomery, C
Fan, YJ
Matthews, K
Chun, J
Ashby, PD
AF Neisser, Mark
Cummings, Kevin
Valente, Sean
Montgomery, Cecilia
Fan, Yu-Jen
Matthews, Ken
Chun, JunSung
Ashby, Paul D.
BE Wood, OR
Panning, EM
TI Novel Resist Approaches to Enable EUV Lithography in High Volume
Manufacturing and Extensions to Future Nodes
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
DE Extreme Ultraviolet Lithography (EUVL); Photoresist; Metal Containing
Resists; Resist Development; Resist Characterization; Pixelated Resist
AB EUV lithography is needed by the semiconductor industry for both its resolution and for the process simplification it provides compared to multiple patterning. However it needs innovations to make it a success. One area where innovation is needed is resist performance. Resists that are commercially available for EUV use are typically based on conventional chemically amplified resist chemistry. So far, this has not provided the required performance at fast enough photo speed. Many innovative resist systems have been introduced in the last few years that have novel mechanisms and/or incorporate novel chemical elements with high EUV absorbance. These new systems are promising enough for EUV use that work on many of them now needs to shift to characterizing their functional parameters and optimizing their performance. For the future, new systems beyond these will have to focus on reducing the inherent noise in resist imaging. The concept of pixelated resists is introduced and it is suggested pixelated resists are one possible avenue for imaging sub 10nm features with sufficient feature size and profile control.
C1 [Neisser, Mark; Cummings, Kevin; Valente, Sean; Montgomery, Cecilia; Fan, Yu-Jen; Matthews, Ken] SEMATECH, Albany, NY 12203 USA.
[Chun, JunSung] CNSE SUNY, Albany Nanotech, Albany, NY 12203 USA.
[Ashby, Paul D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Neisser, M (reprint author), SEMATECH, 257 Fuller Rd,Suite 2200, Albany, NY 12203 USA.
EM mark.neisser@sematech.org
NR 17
TC 3
Z9 3
U1 1
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
AR 94220L
DI 10.1117/12.2086307
PG 10
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900018
ER
PT S
AU Upadhyaya, M
Jindal, V
Basavalingappa, A
Herbol, H
Harris-Jones, J
Jang, IY
Goldberg, KA
Mochi, I
Marokkey, S
Demmerle, W
Pistor, TV
Denbeaux, G
AF Upadhyaya, Mihir
Jindal, Vibhu
Basavalingappa, Adarsh
Herbol, Henry
Harris-Jones, Jenah
Jang, Il-Yong
Goldberg, Kenneth A.
Mochi, Iacopo
Marokkey, Sajan
Demmerle, Wolfgang
Pistor, Thomas V.
Denbeaux, Gregory
BE Wood, OR
Panning, EM
TI Evaluating Printability of Buried Native EUV Mask Phase Defects through
a Modeling and Simulation Approach
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
ID LOCALIZED DEFECTS
AB The availability of defect-free masks is considered to be a critical issue for enabling extreme ultraviolet lithography (EUVL) as the next generation technology. Since completely defect-free masks will be hard to achieve, it is essential to have a good understanding of the printability of the native EUV mask defects. In this work, we performed a systematic study of native mask defects to understand the defect printability caused by them. The multilayer growth over native substrate mask blank defects was correlated to the multilayer growth over regular-shaped defects having similar profiles in terms of their width and height. To model the multilayer growth over the defects, a novel level-set multilayer growth model was used that took into account the tool deposition conditions of the Veeco Nexus ion beam deposition tool. The same tool was used for performing the actual deposition of the multilayer stack over the characterized native defects, thus ensuring a fair comparison between the actual multilayer growth over native defects, and modeled multilayer growth over regular-shaped defects. Further, the printability of the characterized native defects was studied with the SEMATECH-Berkeley Actinic Inspection Tool (AIT), an EUV mask-imaging microscope at Lawrence Berkeley National Laboratory (LBNL). Printability of the modeled regular-shaped defects, which were propagated up the multilayer stack using level-set growth model was studied using defect printability simulations implementing the waveguide algorithm. Good comparison was observed between AIT and the simulation results, thus demonstrating that multilayer growth over a defect is primarily a function of a defect's width and height, irrespective of its shape. This would allow us to predict printability of the arbitrarily-shaped native EUV mask defects in a systematic and robust manner.
C1 [Upadhyaya, Mihir; Basavalingappa, Adarsh; Herbol, Henry; Denbeaux, Gregory] SUNY Albany, Coll Nanoscale Sci & Engn, Albany, NY 12203 USA.
[Jindal, Vibhu] SEMATECH, Albany, NY 12203 USA.
[Harris-Jones, Jenah] Global Foundries, Malta, NY 12020 USA.
[Jang, Il-Yong] Samsung Elect Co, Suwon 443742, Gyeonggi Do, South Korea.
[Goldberg, Kenneth A.; Mochi, Iacopo] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Marokkey, Sajan; Demmerle, Wolfgang] Synopsys, Mountain View, CA 94043 USA.
[Pistor, Thomas V.] Panoram Technol Inc, Burlingame, CA 94010 USA.
RP Upadhyaya, M (reprint author), SUNY Albany, Coll Nanoscale Sci & Engn, 225 Fuller Rd, Albany, NY 12203 USA.
NR 32
TC 2
Z9 2
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
AR 94220Q
DI 10.1117/12.2175842
PG 14
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900023
ER
PT S
AU Wang, YG
Miyakawa, R
Chao, WL
Benk, M
Wojdyla, A
Donoghue, A
Johnson, D
Goldberg, K
Neureuther, A
Liang, T
Naulleau, P
AF Wang, Yow-Gwo
Miyakawa, Ryan
Chao, Weilun
Benk, Markus
Wojdyla, Antoine
Donoghue, Alex
Johnson, David
Goldberg, Kenneth
Neureuther, Andy
Liang, Ted
Naulleau, Patrick
BE Wood, OR
Panning, EM
TI Enhancing defect detection with Zernike phase contrast in EUV multilayer
blank inspection
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
DE EUV Mask; Zernike Phase Contrast Microscope; Phase Defect; Mask
Inspection; Zoneplate
AB In this paper, we present an experimental verification of Zernike phase contrast enhanced EUV multilayer (ML) blank defect detection using the SHARP EUV microscope. A programmed defect as small as 0.35 nm in height is detected at focus with signal to noise ratio (SNR) up to 8. Also, a direct comparison of the through-focus image behavior between bright field and Zernike phase contrast for ML defects ranging from 40 nm to 75 nm in width on the substrate is presented. Results show the advantages of using the Zernike phase contrast method even for defects with both phase and absorption components including a native defect. The impact of pupil apodization combined with Zernike phase contrast is also demonstrated, showing improved SNR is due to the stronger reduction of roughness dependent noise than defect signal, confirming our previous simulation results. Finally we directly compare Zernike phase contrast, dark field and bright field microscopes.
C1 [Wang, Yow-Gwo; Miyakawa, Ryan; Chao, Weilun; Benk, Markus; Wojdyla, Antoine; Donoghue, Alex; Johnson, David; Goldberg, Kenneth; Neureuther, Andy; Liang, Ted; Naulleau, Patrick] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
[Wang, Yow-Gwo; Neureuther, Andy] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA.
[Liang, Ted] Intel Corp, Santa Clara, CA 95054 USA.
RP Wang, YG (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
NR 6
TC 4
Z9 4
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
AR 94221C
DI 10.1117/12.2087532
PG 10
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900045
ER
PT S
AU Yan, PY
Zhang, GJ
Gullikson, EM
Goldberg, KA
Benk, MP
AF Yan, Pei-yang
Zhang, Guojing
Gullikson, Eric M.
Goldberg, Kenneth A.
Benk, Markus P.
BE Wood, OR
Panning, EM
TI Understanding EUV mask blank surface roughness induced LWR and
associated roughness requirement
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Extreme Ultraviolet (EUV) Lithography VI
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, DNS Elect LLC
DE Extreme ultraviolet lithography; mask; surface roughness; ML; EUVL; line
width roughness; LWR
ID LINE-EDGE ROUGHNESS
AB Extreme ultraviolet lithography (EUVL) mask multi-layer (ML) blank surface roughness specification historically comes from blank defect inspection tool requirement. Later, new concerns on ML surface roughness induced wafer pattern line width roughness (LWR) arise. In this paper, we have studied wafer level pattern LWR as a function of EUVL mask surface roughness via High-NA Actinic Reticle Review Tool. We found that the blank surface roughness induced LWR at current blank roughness level is in the order of 0.5nm 3 sigma for NA=0.42 at the best focus. At defocus of +/- 40nm, the corresponding LWR will be 0.2nm higher. Further reducing EUVL mask blank surface roughness will increase the blank cost with limited benefit in improving the pattern LWR, provided that the intrinsic resist LWR is in the order of 1nm and above.
C1 [Yan, Pei-yang; Zhang, Guojing] Intel Corp, Santa Clara, CA 95054 USA.
[Gullikson, Eric M.; Goldberg, Kenneth A.; Benk, Markus P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Yan, PY (reprint author), Intel Corp, 2200 Mission Coll Blvd, Santa Clara, CA 95054 USA.
NR 10
TC 3
Z9 3
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-524-7
J9 PROC SPIE
PY 2015
VL 9422
AR 94220J
DI 10.1117/12.2087041
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6YJ
UT WOS:000354599900016
ER
PT S
AU Prall, M
Lang, PM
LaTessa, C
Mariam, F
Merrill, F
Shestov, L
Simoniello, P
Varentsov, D
Durante, M
AF Prall, M.
Lang, P. M.
LaTessa, C.
Mariam, F.
Merrill, F.
Shestov, L.
Simoniello, P.
Varentsov, D.
Durante, M.
GP IOP
TI Towards Proton Therapy and Radiography at FAIR
SO FAIRNESS 2014: FAIR NEXT GENERATION SCIENTISTS 2014
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 3rd Workshop on FAIRNESS - FAIR Next Generation ScientistS
CY SEP 22-27, 2014
CL Vietri sul Mare, ITALY
AB Protons having energies in the GeV range have been proposed as an alternative to Bragg-peak hadron therapy. This strategy reduces lateral scattering and overcomes uncertainties of particle range and relative biological effectiveness. GeV protons could additionally be used for targeting in image guided stereotactic radiosurgery. We experimentally demonstrated the potential of GeV protons for imaging of biological samples using E=0.8 GeV protons and the pRad setup at Los Alamos National Laboratory (LANL). In this setup, a system of magnetic lenses creates a point-to-point mapping from object to detector. This mapping compensates image blur due to lateral scattering inside the imaged (biological) object. We produced 2-dim proton radiographs of biological samples, an anthropomorphic phantom and performed simple dosimetry. High resolution tomographic reconstructions were derived from the 2-dim proton radiographs. Our experiment was performed within the framework of the PANTERA (Proton Therapy and Radiography) project. In the future, the proton microscope PRIOR (Proton Microscope for FAIR) located in the FAIR facility (Darmstadt), will focus on optimizing the technique for imaging of lesions implanted in animals and couple the irradiation with standard radiotherapy.
C1 [Prall, M.; Lang, P. M.; LaTessa, C.; Shestov, L.; Simoniello, P.; Varentsov, D.; Durante, M.] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany.
[Lang, P. M.] Tech Univ Darmstadt, D-64289 Darmstadt, Germany.
[Mariam, F.; Merrill, F.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Prall, M (reprint author), GSI Helmholtzzentrum Schwerionenforsch GmbH, Planckstr 1, D-64291 Darmstadt, Germany.
EM m.prall@gsi.de
OI Simoniello, Palma/0000-0003-2888-2642; Durante,
Marco/0000-0002-4615-553X
NR 17
TC 2
Z9 2
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 599
AR 012041
DI 10.1088/1742-6596/599/1/012041
PG 5
WC Physics, Multidisciplinary
SC Physics
GA BC6WS
UT WOS:000354542400041
ER
PT S
AU Steinheimer, J
Koch, V
Randrup, J
Bleicher, M
AF Steinheimer, J.
Koch, V.
Randrup, J.
Bleicher, M.
GP IOP
TI Spinodal density enhancements in nuclear collisions at the CBM
experiment
SO FAIRNESS 2014: FAIR NEXT GENERATION SCIENTISTS 2014
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 3rd Workshop on FAIRNESS - FAIR Next Generation ScientistS
CY SEP 22-27, 2014
CL Vietri sul Mare, ITALY
ID HEAVY-ION COLLISIONS; MODEL
AB We discuss a novel approach to describe the evolution of a fireball, created in a high-energy nuclear collision, experiencing spinodal instabilities due to the first-order deconfinement phase transition of quantum chromo dynamics (QCD). We show that initial density fluctuations in these collisions are enhanced in the mechanically unstable region of the QCD phase diagram. In our study we find that the most favorable energy range for observing these density enhancements is at the lower end of the SIS100 accelerator at FAIR, currently under construction. Furthermore we discuss how one can distinguish and constrain different types of QCD phase transitions, one of hadron-quark type and one of liquid-gas type, leading to strong differences in the dynamical evolution of the QCD medium.
C1 [Steinheimer, J.; Bleicher, M.] Frankfurt Inst Adv Studies, Frankfurt, Germany.
[Koch, V.; Randrup, J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Bleicher, M.] Goethe Univ Frankfurt, Inst Theoret Phys, D-60054 Frankfurt, Germany.
RP Steinheimer, J (reprint author), Frankfurt Inst Adv Studies, Ruth Moufang Str 1, Frankfurt, Germany.
EM steinheimer@fias.uni-frankfurt.de
NR 26
TC 0
Z9 0
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2015
VL 599
AR 012014
DI 10.1088/1742-6596/599/1/012014
PG 5
WC Physics, Multidisciplinary
SC Physics
GA BC6WS
UT WOS:000354542400014
ER
PT J
AU Miller, JM
Jones, PT
Li, JM
Onar, OC
AF Miller, John M.
Jones, P. T.
Li, Jan-Mou
Onar, Omer C.
TI ORNL Experience and Challenges Facing Dynamic Wireless Power Charging of
EV's
SO IEEE CIRCUITS AND SYSTEMS MAGAZINE
LA English
DT Article
AB As visionary as dynamic, or in-motion, wireless charging of electric vehicles appears the concept is well over a century old as this paper will show. This is because the concept of magnetic induction dates back to the pioneering work of physicist Michael Faraday in the early 19th century. Today wireless power transfer (WPT) is being standardized for stationary and quasi-stationary charging of electric vehicles (EV). The Society of Automotive Engineers (SAE) has undertaken the standardization of stationary charging and will make this public during 2016. In addition to this the IEEE-SA (Standards Activities) initiated standards development for EV's in their EVWPT working group in 2012. This paper introduces the many challenges facing EVWPT in not only high power transfer to a moving vehicle and energy management at a utility scale, but communications in a vehicle to infrastructure (V2I) environment and management of high data rates, ultra-low latency, and dealing with communications loss in dense urban areas. Future concepts such as guideway powering of EV's are presented to illustrate one technical trajectory EVWPT may take.
C1 [Jones, P. T.; Li, Jan-Mou] Natl Transportat Res Ctr, Ctr Transportat Anal, Energy & Transportat Sci Div, Knoxville, TN 37932 USA.
[Onar, Omer C.] Natl Transportat Res Ctr, Power Elect & Elect Machinery Grp, Elect & Elect Syst Div, Oak Ridge Natl Lab, Knoxville, TN 37932 USA.
RP Miller, JM (reprint author), JNJ Miller Design Serv PLLC, Longview, TX 75601 USA.
OI Li, Jan-Mou/0000-0002-7099-4042
FU U.S. Department of Energy [DE-AC05-00OR22725]
FX The authors thank Oak Ridge National Laboratory Center for
Transportation Analysis, and the Power Electronics and Electric
Machinery Group, of the Energy and Transportation Science Division for
support of the in-motion wireless power transfer technology development
and demonstration. This manuscript has been authored by UT-Battelle, LLC
under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy.
NR 30
TC 11
Z9 11
U1 1
U2 12
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1531-636X
EI 1558-0830
J9 IEEE CIRC SYST MAG
JI IEEE Circuits Syst. Mag.
PY 2015
VL 15
IS 2
BP 40
EP 53
DI 10.1109/MCAS.2015.2419012
PG 14
WC Engineering, Electrical & Electronic
SC Engineering
GA CI6GY
UT WOS:000354858000005
ER
PT S
AU Anderson, AS
Mukundan, H
McInroy, RE
Clegg, SM
AF Anderson, Aaron S.
Mukundan, Harshini
McInroy, Rhonda E.
Clegg, Samuel M.
BE Farkas, DL
Nicolau, DV
Nicolau, RC
TI Combined LIBS-Raman for Remote Detection and Characterization of
Biological Samples
SO IMAGING, MANIPULATION, AND ANALYSIS OF BIOMOLECULES, CELLS, AND TISSUES
XIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Imaging, Manipulation, and Analysis of Biomolecules,
Cells, and Tissues XIII
CY FEB 09-11, 2015
CL San Francisco, CA
SP SPIE
DE LIBS; Raman; biological; remote sensing; amino acids; proteins
ID INDUCED BREAKDOWN SPECTROSCOPY; CHEMCAM INSTRUMENT SUITE; UNIT
AB Laser-Induced Breakdown Spectroscopy (LIBS) and Raman Spectroscopy have rich histories in the analysis of a wide variety of samples in both in situ and remote configurations. Our team is working on building a deployable, integrated Raman and LIBS spectrometer (RLS) for the parallel elucidation of elemental and molecular signatures under Earth and Martian surface conditions. Herein, results from remote LIBS and Raman analysis of biological samples such as amino acids, small peptides, mono-and disaccharides, and nucleic acids acquired under terrestrial and Mars conditions are reported, giving rise to some interesting differences. A library of spectra and peaks of interest were compiled, and will be used to inform the analysis of more complex systems, such as large peptides, dried bacterial spores, and biofilms. These results will be presented and future applications will be discussed, including the assembly of a combined RLS spectroscopic system and stand-off detection in a variety of environments.
C1 [Anderson, Aaron S.; Mukundan, Harshini; McInroy, Rhonda E.; Clegg, Samuel M.] Los Alamos Natl Lab, Phys Chem & Appl Spect, Los Alamos, NM 87545 USA.
RP Anderson, AS (reprint author), Los Alamos Natl Lab, Phys Chem & Appl Spect, Los Alamos, NM 87545 USA.
OI Clegg, Sam/0000-0002-0338-0948
NR 18
TC 0
Z9 0
U1 1
U2 18
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-418-9
J9 PROC SPIE
PY 2015
VL 9328
AR 932811
DI 10.1117/12.2076832
PG 6
WC Cell & Tissue Engineering; Optics; Radiology, Nuclear Medicine & Medical
Imaging
SC Cell Biology; Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BC6MB
UT WOS:000354105000024
ER
PT J
AU Liu, YN
Jimenez, E
Hussaini, MY
Okten, G
Goodrick, S
AF Liu, Yaning
Jimenez, Edwin
Hussaini, M. Yousuff
Oekten, Giray
Goodrick, Scott
TI Parametric uncertainty quantification in the Rothermel model with
randomised quasi-Monte Carlo methods
SO INTERNATIONAL JOURNAL OF WILDLAND FIRE
LA English
DT Article
DE chaparral fuel model; fire propagation; global sensitivity analysis;
variance reduction
ID GLOBAL SENSITIVITY INDEXES; DERIVATIVES
AB Rothermel's wildland surface fire model is a popular model used in wildland fire management. The original model has a large number of parameters, making uncertainty quantification challenging. In this paper, we use variance-based global sensitivity analysis to reduce the number of model parameters, and apply randomised quasi-Monte Carlo methods to quantify parametric uncertainties for the reduced model. The Monte Carlo estimator used in these calculations is based on a control variate approach applied to the sensitivity derivative enhanced sampling. The chaparral fuel model, selected from Rothermel's 11 original fuel models, is studied as an example. We obtain numerical results that improve the crude Monte Carlo sampling by factors as high as three orders of magnitude.
C1 [Liu, Yaning; Hussaini, M. Yousuff; Oekten, Giray] Florida State Univ, Dept Math, Tallahassee, FL 32306 USA.
[Jimenez, Edwin] CALTECH, Dept Comp & Math Sci, Pasadena, CA 91125 USA.
[Goodrick, Scott] US Forest Serv, USDA, Ctr Forest Disturbance Sci, Athens, GA 30602 USA.
RP Liu, YN (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM yaningliu@lbl.gov
RI Liu, Yaning/K-8547-2014
NR 35
TC 5
Z9 5
U1 1
U2 1
PU CSIRO PUBLISHING
PI CLAYTON
PA UNIPARK, BLDG 1, LEVEL 1, 195 WELLINGTON RD, LOCKED BAG 10, CLAYTON, VIC
3168, AUSTRALIA
SN 1049-8001
EI 1448-5516
J9 INT J WILDLAND FIRE
JI Int. J. Wildland Fire
PY 2015
VL 24
IS 3
BP 307
EP 316
DI 10.1071/WF13097
PG 10
WC Forestry
SC Forestry
GA CI5OY
UT WOS:000354808600003
ER
PT J
AU Aytug, T
Lupini, AR
Jellison, GE
Joshi, PC
Ivanov, IH
Liu, T
Wang, P
Menon, R
Trejo, RM
Lara-Curzio, E
Hunter, SR
Simpson, JT
Paranthaman, MP
Christen, DK
AF Aytug, Tolga
Lupini, Andrew R.
Jellison, Gerald E.
Joshi, Pooran C.
Ivanov, Ilia H.
Liu, Tao
Wang, Peng
Menon, Rajesh
Trejo, Rosa M.
Lara-Curzio, Edgar
Hunter, Scott R.
Simpson, John T.
Paranthaman, M. Parans
Christen, David K.
TI Monolithic graded-refractive-index glass-based antireflective coatings:
broadband/omnidirectional light harvesting and self-cleaning
characteristics
SO JOURNAL OF MATERIALS CHEMISTRY C
LA English
DT Article
ID SPECTROSCOPIC ELLIPSOMETRY; SOLAR-CELLS; BROAD-BAND; SURFACES;
REFLECTION; DESIGN; LAYERS; MICRO; LASER; POWER
AB A revolutionary impact on the performance of many optical systems and components can come from the integrative design of multifunctional coatings. Such coatings should be mechanically robust, and combine user-defined optical and wetting functions with scalable fabrication formulations. By taking cues from the properties of some natural biological structures, we report here the formation of low-refractive index antireflective glass films that embody omni-directional optical properties over a wide range of wavelengths, while also possessing specific wetting capabilities. The coatings comprise an interconnected network of nanoscale pores surrounded by a nanostructured silica framework. These structures result from a novel fabrication method that utilizes metastable spinodal phase separation in glass-based materials. The approach not only enables design of surface microstructures with graded-index antireflection characteristics, where the surface reflection is suppressed through optical impedance matching between interfaces, but also facilitates self-cleaning ability through modification of the surface chemistry. Based on near complete elimination of Fresnel reflections (yielding 495% transmission through a single-side coated glass) and corresponding increase in broadband transmission, the fabricated nanostructured surfaces are found to promote a general and an invaluable similar to 3-7% relative increase in current output of multiple direct/indirect bandgap photovoltaic cells. Moreover, these antireflective surfaces also demonstrate superior resistance against mechanical wear and abrasion. Unlike conventional counterparts, the present antireflective coatings are essentially monolithic, enabling simultaneous realization of graded index anti-reflectivity, self-cleaning capability, and mechanical stability within the same surface. The concept represents a fundamental basis for development of advanced coated optical quality products, especially where environmental exposure is required.
C1 [Aytug, Tolga; Lupini, Andrew R.; Jellison, Gerald E.; Joshi, Pooran C.; Ivanov, Ilia H.; Liu, Tao; Trejo, Rosa M.; Lara-Curzio, Edgar; Hunter, Scott R.; Simpson, John T.; Paranthaman, M. Parans; Christen, David K.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Wang, Peng; Menon, Rajesh] Univ Utah, Dept Elect & Comp Engn, Salt Lake City, UT 84112 USA.
RP Aytug, T (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM aytugt@ornl.gov
RI Paranthaman, Mariappan/N-3866-2015;
OI Paranthaman, Mariappan/0000-0003-3009-8531; ivanov,
ilia/0000-0002-6726-2502
FU Laboratory Directed Tip Innovation Program of Oak Ridge National
Laboratory; U.S. Department of Energy (DOE), Office of Science, Basic
Energy Sciences (BES), Materials Sciences and Engineering Division; Oak
Ridge National Laboratory by the U.S. DOE Office of Energy Efficiency
and Renewable Energy; Oak Ridge National Laboratory by the Scientific
User Facilities Division, Office of BES, U.S. DOE; DOE [EE0005959]
FX This work was supported by the Laboratory Directed Tip Innovation
Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC
for the U.S. Department of Energy. STEM research was supported by the
U.S. Department of Energy (DOE), Office of Science, Basic Energy
Sciences (BES), Materials Sciences and Engineering Division. Mechanical
Property research conducted at High Temperature Material Laboratory,
which is sponsored at Oak Ridge National Laboratory by the U.S. DOE
Office of Energy Efficiency and Renewable Energy. A portion of this
research was conducted at the Center for Nanophase Materials Sciences
(CNMS) which is a DOE Office of Science User Facility. Other portions of
this research were conducted at the Shared Research Equipment (SHaRE)
user facility, which is sponsored at Oak Ridge National Laboratory by
the Scientific User Facilities Division, Office of BES, U.S. DOE.
Photovoltaic device measurements conducted at the University of Utah
were supported by a DOE Bridge award no. EE0005959.
NR 47
TC 14
Z9 14
U1 4
U2 35
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7526
EI 2050-7534
J9 J MATER CHEM C
JI J. Mater. Chem. C
PY 2015
VL 3
IS 21
BP 5440
EP 5449
DI 10.1039/c5tc00499c
PG 10
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA CI7SV
UT WOS:000354965900011
ER
PT J
AU Huo, NJ
Wei, ZM
Meng, XQ
Kang, J
Wu, FM
Li, SS
Wei, SH
Li, JB
AF Huo, Nengjie
Wei, Zhongming
Meng, Xiuqing
Kang, Joongoo
Wu, Fengmin
Li, Shu-Shen
Wei, Su-Huai
Li, Jingbo
TI Interlayer coupling and optoelectronic properties of ultrathin
two-dimensional heterostructures based on graphene, MoS2 and WS2
SO JOURNAL OF MATERIALS CHEMISTRY C
LA English
DT Article
ID TRANSITION-METAL DICHALCOGENIDES; SINGLE-LAYER; TRANSISTORS;
ELECTRONICS; SHEETS; FILMS
AB Unique optoelectronic properties and interlayer coupling are observed in the artificial two-dimensional (2D) heterostructures based on graphene, MoS2 and WS2 monolayers. In the graphene-WS2] heterostructures, substantial photoluminescence (PL) quenching and significant stiffening phonon modes emerge due to strong interlayer coupling. Such hybrid systems also exhibit gate-tunable current rectification behavior with a maximum rectification ratio of 103. In addition, the ambipolar properties originating from their constituents and enhanced photo-switching properties with a maximum on/off ratio of 10(3) were also observed. The MoS2-WS2 heterostructures exhibit light emission quenching of WS2 while unchanged emission of MoS2. Such a phenomenon is due to the weak interlayer coupling and inefficient charge transfer process. The enhanced optoelectronic performances suggest that the ultrathin 2D heterostructures have great potential in the future architectural design of novel optoelectronic devices.
C1 [Huo, Nengjie; Wei, Zhongming; Li, Shu-Shen; Li, Jingbo] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China.
[Meng, Xiuqing; Wu, Fengmin] Zhejiang Normal Univ, Res Ctr Light Emitting Diodes LED, Jinhua 321004, Peoples R China.
[Kang, Joongoo; Wei, Su-Huai] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Li, JB (reprint author), Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, POB 912, Beijing 100083, Peoples R China.
EM suhuai.wei@nrel.gov; jbli@semi.ac.cn
FU National Natural Science Foundation of China [91233120]; National Basic
Research Program of China [2011CB921901]; U.S. Department of Energy
[DE-AC36-08GO28308]
FX This work was supported by the National Natural Science Foundation of
China under Grant No. 91233120 and the National Basic Research Program
of China (2011CB921901). The work of S.-H. W is supported by the U.S.
Department of Energy under Contract No. DE-AC36-08GO28308.
NR 38
TC 14
Z9 14
U1 16
U2 94
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7526
EI 2050-7534
J9 J MATER CHEM C
JI J. Mater. Chem. C
PY 2015
VL 3
IS 21
BP 5467
EP 5473
DI 10.1039/c5tc00698h
PG 7
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA CI7SV
UT WOS:000354965900014
ER
PT S
AU Alamudun, FT
Yoon, HJ
Hudson, K
Morin-Ducotte, G
Tourassi, G
AF Alamudun, Folami T.
Yoon, Hong-Jun
Hudson, Kathy
Morin-Ducotte, Garnetta
Tourassi, Georgia
BE MelloThoms, CR
Kupinski, MA
TI Fractal Analysis of Radiologists' Visual Scanning Pattern in Screening
Mammography
SO MEDICAL IMAGING 2015: IMAGE PERCEPTION, OBSERVER PERFORMANCE, AND
TECHNOLOGY ASSESSMENT
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Medical Imaging - Image Perception, Observer Performance,
and Technology Assessment
CY FEB 25-26, 2015
CL Orlando, FL
SP SPIE, Alpin Med Syst, Modus Med Devices Inc, Bruker, ALIO Ind
DE visual perception; fractal analysis; mammography; gaze complexity; user
modeling
ID REPORTED CANCERS; BREAST CANCERS; PERCEPTION; DECISION; ERRORS
AB Several researchers have investigated radiologists' visual scanning patterns with respect to features such as total time examining a case, time to initially hit true lesions, number of hits, etc. The purpose of this study was to examine the complexity of the radiologists' visual scanning pattern when viewing 4-view mammographic cases, as they typically do in clinical practice. Gaze data were collected from 10 readers (3 breast imaging experts and 7 radiology residents) while reviewing 100 screening mammograms (24 normal, 26 benign, 50 malignant). The radiologists' scanpaths across the 4 mammographic views were mapped to a single 2-D image plane. Then, fractal analysis was applied on the composite 4-view scanpaths. For each case, the complexity of each radiologist's scanpath was measured using fractal dimension estimated with the box counting method. The association between the fractal dimension of the radiologists' visual scanpath, case pathology, case density, and radiologist experience was evaluated using fixed effects ANOVA. ANOVA showed that the complexity of the radiologists' visual search pattern in screening mammography is dependent on case specific attributes (breast parenchyma density and case pathology) as well as on reader attributes, namely experience level. Visual scanning patterns are significantly different for benign and malignant cases than for normal cases. There is also substantial inter-observer variability which cannot be explained only by experience level.
C1 [Alamudun, Folami T.] Texas A&M Univ, Dept Comp Sci & Engn, College Stn, TX 77843 USA.
[Hudson, Kathy; Morin-Ducotte, Garnetta] Univ Tennessee, Med Ctr, Dept Radiol, Knoxville, TN 37920 USA.
[Yoon, Hong-Jun; Tourassi, Georgia] Oak Ridge Natl Lab, Biomed Sci & Engn Ctr, Hlth Data Sci Inst, Oak Ridge, TN 37831 USA.
RP Alamudun, FT (reprint author), Texas A&M Univ, Dept Comp Sci & Engn, College Stn, TX 77843 USA.
OI Tourassi, Georgia/0000-0002-9418-9638; Alamudun,
Folami/0000-0002-0803-4542
NR 25
TC 0
Z9 0
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-506-3
J9 PROC SPIE
PY 2015
VL 9416
AR 94160T
DI 10.1117/12.2082972
PG 8
WC Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BC6OS
UT WOS:000354266600025
ER
PT S
AU Yoon, HJ
Carmichael, TR
Tourassi, G
AF Yoon, Hong-Jun
Carmichael, Tandy R.
Tourassi, Georgia
BE MelloThoms, CR
Kupinski, MA
TI Temporal Stability of Visual Search-Driven Biometrics
SO MEDICAL IMAGING 2015: IMAGE PERCEPTION, OBSERVER PERFORMANCE, AND
TECHNOLOGY ASSESSMENT
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Medical Imaging - Image Perception, Observer Performance,
and Technology Assessment
CY FEB 25-26, 2015
CL Orlando, FL
SP SPIE, Alpin Med Syst, Modus Med Devices Inc, Bruker, ALIO Ind
DE eye tracking; perceptual organization; user modeling
ID EYE-MOVEMENTS
AB Previously, we have shown the potential of using an individual's visual search pattern as a possible biometric. That study focused on viewing images displaying dot-patterns with different spatial relationships to determine which pattern can be more effective in establishing the identity of an individual. In this follow-up study we investigated the temporal stability of this biometric. We performed an experiment with 16 individuals asked to search for a predetermined feature of a random-dot pattern as we tracked their eye movements. Each participant completed four testing sessions consisting of two dot patterns repeated twice. One dot pattern displayed concentric circles shifted to the left or right side of the screen overlaid with visual noise, and participants were asked which side the circles were centered on. The second dot-pattern displayed a number of circles (between 0 and 4) scattered on the screen overlaid with visual noise, and participants were asked how many circles they could identify. Each session contained 5 untracked tutorial questions and 50 tracked test questions (200 total tracked questions per participant). To create each participant's "fingerprint", we constructed a Hidden Markov Model (HMM) from the gaze data representing the underlying visual search and cognitive process. The accuracy of the derived HMM models was evaluated using cross-validation for various time-dependent train-test conditions. Subject identification accuracy ranged from 17.6% to 41.8% for all conditions, which is significantly higher than random guessing (1/16 = 6.25%). The results suggest that visual search pattern is a promising, temporally stable personalized fingerprint of perceptual organization.
C1 [Yoon, Hong-Jun; Tourassi, Georgia] Oak Ridge Natl Lab, Biomed Sci & Engn Ctr, Hlth Data Sci Inst, Oak Ridge, TN 37831 USA.
[Carmichael, Tandy R.] Tennessee Technol Univ, Dept Elect & Comp Engn, Cookeville, TN 38505 USA.
RP Yoon, HJ (reprint author), Oak Ridge Natl Lab, Biomed Sci & Engn Ctr, Hlth Data Sci Inst, One Bethel Valley Rd, Oak Ridge, TN 37831 USA.
OI Tourassi, Georgia/0000-0002-9418-9638
NR 16
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-506-3
J9 PROC SPIE
PY 2015
VL 9416
AR 94160U
DI 10.1117/12.2082801
PG 7
WC Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BC6OS
UT WOS:000354266600026
ER
PT S
AU Doxastakis, M
Suh, HS
Chen, XX
Delgadillo, PAR
Wan, LS
Williamson, L
Jiang, Z
Strzalka, J
Wang, J
Chen, W
Ferrier, N
Ramirez-Hernandez, A
de Pablo, JJ
Gronheid, R
Nealey, P
AF Doxastakis, Manolis
Suh, Hyo Seon
Chen, Xuanxuan
Delgadillo, Paulina A. Rincon
Wan, Lingshu
Williamson, Lance
Jiang, Zhang
Strzalka, Joseph
Wang, Jin
Chen, Wei
Ferrier, Nicola
Ramirez-Hernandez, Abelardo
de Pablo, Juan J.
Gronheid, Roel
Nealey, Paul
BE Cain, JP
Sanchez, MI
TI Grazing-incidence small angle x-ray scattering studies of nanoscale
polymer gratings
SO METROLOGY, INSPECTION, AND PROCESS CONTROL FOR MICROLITHOGRAPHY XXIX
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 29th Conference on Metrology, Inspection, and Process Control for
Microlithography
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, NOVA Ltd
DE GISAXS; Grazing-incidence x-ray scattering; Scattering simulation;
Directed-Self Assembly; LiNe flow; Grating
AB Grazing-Incidence Small Angle X-ray Scattering (GISAXS) offers the ability to probe large sample areas, providing three-dimensional structural information at high detail in a thin film geometry. In this study we exploit the application of GISAXS to structures formed at one step of the LiNe (Liu-Nealey) flow using chemical patterns for directed self-assembly of block copolyilier lilnis. Experiments coltducted at the Argoinie National Laboratory provided scattering patterns probing film characteristics at both parallel and normal directions to the surface. We demonstrate the application of new computational methods to construct models based on scattering measured. SUCh analysis allows for extraction of structural characteristics at unprecedented dett-til.
C1 [Doxastakis, Manolis; Suh, Hyo Seon; Chen, Wei; Ramirez-Hernandez, Abelardo; de Pablo, Juan J.; Nealey, Paul] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Suh, Hyo Seon; Chen, Xuanxuan; Delgadillo, Paulina A. Rincon; Wan, Lingshu; Williamson, Lance; de Pablo, Juan J.; Nealey, Paul] Univ Chicago, Inst Mol Engn, Chicago, IL 60637 USA.
[Ferrier, Nicola] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
[Delgadillo, Paulina A. Rincon; Gronheid, Roel] IMEC, B-3001 Leuven, Belgium.
[Delgadillo, Paulina A. Rincon] Katholieke Univ Leuven, Dept Elect Engn, B-3001 Leuven, Belgium.
[Jiang, Zhang; Strzalka, Joseph; Wang, Jin] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Doxastakis, M (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM edoxastakis@anl.gov; nealey@uchicago.edu
RI Jiang, Zhang/A-3297-2012; Ramirez-Hernandez, Abelardo/A-1717-2011; Chen,
Wei/G-6055-2011;
OI Jiang, Zhang/0000-0003-3503-8909; Ramirez-Hernandez,
Abelardo/0000-0002-3569-5223; Chen, Wei/0000-0001-8906-4278; Doxastakis,
Manolis/0000-0002-9175-9906
NR 13
TC 3
Z9 3
U1 1
U2 9
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-526-1
J9 PROC SPIE
PY 2015
VL 9424
AR 94241N
DI 10.1117/12.2085824
PG 7
WC Optics; Physics, Applied; Imaging Science & Photographic Technology
SC Optics; Physics; Imaging Science & Photographic Technology
GA BC6OK
UT WOS:000354250200056
ER
PT S
AU Hoogeboom-Pot, K
Hernandez-Charpak, J
Frazer, T
Gu, XK
Turgut, E
Anderson, E
Chao, WL
Shaw, J
Yang, RG
Murnane, M
Kapteyn, H
Nardi, D
AF Hoogeboom-Pot, Kathleen
Hernandez-Charpak, Jorge
Frazer, Travis
Gu, Xiaokun
Turgut, Emrah
Anderson, Erik
Chao, Weilun
Shaw, Justin
Yang, Ronggui
Murnane, Margaret
Kapteyn, Henry
Nardi, Damiano
BE Cain, JP
Sanchez, MI
TI Mechanical and thermal properties of nanomaterials at sub-50nm
dimensions characterized using coherent EUV beams
SO METROLOGY, INSPECTION, AND PROCESS CONTROL FOR MICROLITHOGRAPHY XXIX
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 29th Conference on Metrology, Inspection, and Process Control for
Microlithography
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, NOVA Ltd
DE Ultrafast X-Rays; nanometrology; nano-mechanical properties; ultrathin
films; nondiffusive thermal transport; mean free path spectroscopy;
photoacoustic; photothermal
ID FILMS; SCATTERING
AB Coherent extreme ultraviolet beams from tabletop high harmonic generation offer several revolutionary capabilities for observing nanoscale systems on their intrinsic length and time scales. By launching and monitoring hypersonic acoustic waves in such systems, we characterize the mechanical properties of sub-10nm layers and find that the material densities remain close to their bulk values while their elastic properties are significantly modified. Moreover, within the same measurement, by following the heat dissipation dynamics from 30-750nm-wide nanowires, we uncover a new thermal transport regime in which closely-spaced nanoscale heat sources can surprisingly cool more efficiently than widely-spaced heat sources of the same size.
C1 [Hoogeboom-Pot, Kathleen; Hernandez-Charpak, Jorge; Frazer, Travis; Turgut, Emrah; Murnane, Margaret; Kapteyn, Henry; Nardi, Damiano] Univ Colorado, JILA, Boulder, CO 80309 USA.
[Hoogeboom-Pot, Kathleen; Hernandez-Charpak, Jorge; Frazer, Travis; Turgut, Emrah; Murnane, Margaret; Kapteyn, Henry; Nardi, Damiano] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Hoogeboom-Pot, Kathleen; Hernandez-Charpak, Jorge; Frazer, Travis; Turgut, Emrah; Murnane, Margaret; Kapteyn, Henry; Nardi, Damiano] NIST, Boulder, CO 80309 USA.
[Gu, Xiaokun; Yang, Ronggui] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA.
[Anderson, Erik; Chao, Weilun] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
[Shaw, Justin] NIST, Electromagnet Div, Boulder, CO 80305 USA.
RP Hoogeboom-Pot, K (reprint author), Univ Colorado, JILA, Boulder, CO 80309 USA.
EM hoogeboo@jila.colorado.edu
RI Yang, Ronggui/H-1278-2011; Gu, Xiaokun/H-4069-2011; Shaw,
Justin/C-1845-2008
OI Gu, Xiaokun/0000-0003-3803-3951; Shaw, Justin/0000-0003-2027-1521
NR 28
TC 2
Z9 2
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-526-1
J9 PROC SPIE
PY 2015
VL 9424
AR 942417
DI 10.1117/12.2085615
PG 8
WC Optics; Physics, Applied; Imaging Science & Photographic Technology
SC Optics; Physics; Imaging Science & Photographic Technology
GA BC6OK
UT WOS:000354250200040
ER
PT S
AU Segal-Peretz, T
Winterstein, J
Ren, JX
Biswas, M
Liddle, JA
Elam, JW
Ocola, LE
Divan, RNS
Zaluzec, N
Nealey, PF
AF Segal-Peretz, Tamar
Winterstein, Jonathan
Ren, Jiaxing
Biswas, Mahua
Liddle, J. Alexander
Elam, Jeffrey W.
Ocola, Leonidas E.
Divan, Ralu N. S.
Zaluzec, Nestor
Nealey, Paul F.
BE Cain, JP
Sanchez, MI
TI Metrology of DSA process using TEM tomography
SO METROLOGY, INSPECTION, AND PROCESS CONTROL FOR MICROLITHOGRAPHY XXIX
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 29th Conference on Metrology, Inspection, and Process Control for
Microlithography
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, NOVA Ltd
DE Block copolymers; self-assembly; DSA; TEM; STEM; tomography; 3D
characterization; SIS
ID BLOCK-COPOLYMERS
AB Directed self-assembly (DSA) of block copolymers (BCPs) is a rising technique for sub-20 nm patterning. To fully harness DSA capabilities for patterning, a detailed understanding of the three dimensional (3D) structure of BCPs is needed. By combining sequential infiltration synthesis (SIS) and scanning transmission electron microscopy (STEM) tomography, we have characterized the 3D structure of self-assembled and DSA BCPs films with high precision and resolution. SIS is an emerging technique for enhancing pattern transfer in BCPs through the selective growth of inorganic material in polar BCP domains. Here, Al2O3 SIS was used to enhance the imaging contrast and enable tomographic characterization of BCPs with high fidelity. Moreover, by utilizing SIS for both 3D characterization and hard mask fabrication, we were able to characterize the BCP morphology as well as the alumina nanostructures that would be used for pattern transfer.
C1 [Segal-Peretz, Tamar; Ren, Jiaxing; Nealey, Paul F.] Univ Chicago, Inst Mol Engn, Chicago, IL 60637 USA.
[Segal-Peretz, Tamar; Nealey, Paul F.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Winterstein, Jonathan; Liddle, J. Alexander] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
[Biswas, Mahua; Elam, Jeffrey W.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
[Ocola, Leonidas E.; Divan, Ralu N. S.; Zaluzec, Nestor] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
RP Nealey, PF (reprint author), Univ Chicago, Inst Mol Engn, 5747 South Ellis Ave, Chicago, IL 60637 USA.
EM nealey@uchicago.edu
RI Liddle, James/A-4867-2013
OI Liddle, James/0000-0002-2508-7910
NR 9
TC 4
Z9 4
U1 2
U2 7
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-526-1
J9 PROC SPIE
PY 2015
VL 9424
AR 94240U
DI 10.1117/12.2085577
PG 6
WC Optics; Physics, Applied; Imaging Science & Photographic Technology
SC Optics; Physics; Imaging Science & Photographic Technology
GA BC6OK
UT WOS:000354250200029
ER
PT B
AU Gao, J
Burchiel, SW
AF Gao, Jun
Burchiel, Scott W.
BE Corsini, E
VanLoveren, H
TI Genotoxic Mechanisms of PAH-Induced Immunotoxicity
SO MOLECULAR IMMUNOTOXICOLOGY
LA English
DT Article; Book Chapter
ID POLYCYCLIC AROMATIC-HYDROCARBONS; MICROSOMAL EPOXIDE HYDROLASE;
ENVIRONMENTAL CONTAMINANT BENZO(A)PYRENE; B CELL APOPTOSIS; HUMAN
T-CELLS; DNA-DAMAGE; METABOLIC-ACTIVATION; HUMAN MACROPHAGES; INDUCIBLE
CYTOCHROME-P450; ALPHA-NAPHTHOFLAVONE
C1 [Gao, Jun] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA.
[Burchiel, Scott W.] Univ New Mexico, Dept Pharmaceut Sci, Coll Pharm, Albuquerque, NM 87131 USA.
RP Gao, J (reprint author), Los Alamos Natl Lab, Biosci Div, TA43,Bldg01, Los Alamos, NM 87545 USA.
NR 74
TC 0
Z9 0
U1 0
U2 2
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PAPPELALLEE 3, W-69469 WEINHEIM, GERMANY
BN 978-3-527-67696-5; 978-3-527-33519-0
PY 2015
BP 245
EP 261
PG 17
WC Toxicology
SC Toxicology
GA BC7MJ
UT WOS:000354998200013
ER
PT S
AU Bross, A
AF Bross, Alan
CA nuSTORM Collaboration
BE DaMotta, H
Morfin, JG
Sakuda, M
TI nuSTORM: Neutrinos from STORed Muons
SO NUINT12: 8TH INTERNATIONAL WORKSHOP ON NEUTRINO-NUCLEUS INTERACTIONS IN
THE FEW-GEV REGION
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 8th International Workshop on Neutrino-Nucleus Interactions in the
Few-GeV Region (NUINT12)
CY OCT 22-27, 2012
CL Brazilian Ctr Phys Res, Rio de Janeiro, BRAZIL
HO Brazilian Ctr Phys Res
DE sterile neutrinos; neutrino interactions; muon decay ring
ID TOOLKIT; SEESAW; GALLEX
AB The results of LSND and MiniBooNE, along with the recent papers on a possible reactor neutrino flux anomaly, give tantalizing hints of new physics. Models beyond the nu SM have been developed to explain these results and involve one or more additional neutrinos that are non-interacting or "sterile." Neutrino beams produced from the decay of muons in a racetrack-like decay ring provide a powerful way to study this potential new physics. In this paper, I will describe the facility, nuSTORM, and an appropriate far detector for neutrino oscillation searches at short baseline. I will present sensitivity plots that indicated that this experimental approach can provide well over 5 sigma confirmation or rejection of the LSND/MinBooNE results.
C1 [Bross, Alan; nuSTORM Collaboration] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Bross, A (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
NR 29
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1308-5
J9 AIP CONF PROC
PY 2015
VL 1663
AR 100003
DI 10.1063/1.4919501
PG 6
WC Physics, Applied; Physics, Particles & Fields
SC Physics
GA BC7KE
UT WOS:000354963900040
ER
PT S
AU Mayer, N
AF Mayer, Nathan
BE DaMotta, H
Morfin, JG
Sakuda, M
TI Comparisons of Neutrino Event Generators from an Oscillation-Experiment
Perspective
SO NUINT12: 8TH INTERNATIONAL WORKSHOP ON NEUTRINO-NUCLEUS INTERACTIONS IN
THE FEW-GEV REGION
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 8th International Workshop on Neutrino-Nucleus Interactions in the
Few-GeV Region (NUINT12)
CY OCT 22-27, 2012
CL Brazilian Ctr Phys Res, Rio de Janeiro, BRAZIL
HO Brazilian Ctr Phys Res
DE neutrino-nucleus scattering; monte carlo generators; final state
interactions
ID MONTE-CARLO CALCULATIONS; INTRANUCLEAR CASCADES; ENERGY
AB Monte Carlo generators are crucial to the analysis of high energy physics data, ideally giving a baseline comparison between the state-of-art theoretical models and experimental data. Presented here is a comparison between three of final state distributions from the GENIE, Neut, NUANCE, and NuWro neutrino Monte Carlo event generators. The final state distributions chosen for comparison are: the electromagnetic energy fraction in neutral current interactions, the energy of the leading pi(0) vs. the scattering angle for neutral current interactions, and the muon energy nu(mu) scattering angle of charged current interactions.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Mayer, N (reprint author), Fermilab Natl Accelerator Lab, POB 500 MS 220, Batavia, IL 60510 USA.
EM nathan.mayer@tufts.edu
NR 9
TC 0
Z9 0
U1 1
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1308-5
J9 AIP CONF PROC
PY 2015
VL 1663
AR 030005
DI 10.1063/1.4919469
PG 5
WC Physics, Applied; Physics, Particles & Fields
SC Physics
GA BC7KE
UT WOS:000354963900009
ER
PT S
AU Nakamura, SX
Kamano, H
Lee, TSH
Sato, T
AF Nakamura, S. X.
Kamano, H.
Lee, T. -S. H.
Sato, T.
BE DaMotta, H
Morfin, JG
Sakuda, M
TI Neutrino-induced meson productions off nucleon at forward limit in
nucleon resonance region
SO NUINT12: 8TH INTERNATIONAL WORKSHOP ON NEUTRINO-NUCLEUS INTERACTIONS IN
THE FEW-GEV REGION
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 8th International Workshop on Neutrino-Nucleus Interactions in the
Few-GeV Region (NUINT12)
CY OCT 22-27, 2012
CL Brazilian Ctr Phys Res, Rio de Janeiro, BRAZIL
HO Brazilian Ctr Phys Res
DE neutrino-nucleon reaction; meson production
ID SINGLE PION-PRODUCTION; FORMULA
AB We study forward neutrino-induced meson production off the nucleon in the resonance region. Our calculation is based on a dynamical coupled-channels (DCC) model that reasonably describes pi(gamma)N -> pi N, eta N, K Lambda, K Sigma data in the resonance region. We apply the PCAC hypothesis to the DCC model to relate the pN reaction amplitude to the forward neutrino reaction amplitude. In this way, we give a prediction for nu N -> pi N, pi pi N, eta N, K Lambda, K Sigma reaction cross sections. The predicted nu N -> pi pi N, eta N, K Lambda, K Sigma cross sections are, for the first time, based on a model extensively tested by data. We compare our results with those from the Rein-Sehgal model that has been very often used in the existing Monte Carlo simulators for neutrino experiments. We find a significant difference between them.
C1 [Nakamura, S. X.] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068542, Japan.
[Kamano, H.] Osaka Univ, Nucl Phys Res Ctr, Ibaraki, Osaka 5670047, Japan.
[Lee, T. -S. H.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Sato, T.] Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan.
[Sato, T.] KEK, High Energy Accelerator Res Org, KEK Theory Ctr, Inst Particle & Nucl Studies,J PARC Branch, Tokai, Ibaraki 3191106, Japan.
RP Nakamura, SX (reprint author), Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068542, Japan.
NR 21
TC 1
Z9 1
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1308-5
J9 AIP CONF PROC
PY 2015
VL 1663
AR 070005
DI 10.1063/1.4919486
PG 5
WC Physics, Applied; Physics, Particles & Fields
SC Physics
GA BC7KE
UT WOS:000354963900025
ER
PT S
AU Schiavilla, R
AF Schiavilla, R.
BE DaMotta, H
Morfin, JG
Sakuda, M
TI A realistic approach to inclusive e-scattering from nuclei
SO NUINT12: 8TH INTERNATIONAL WORKSHOP ON NEUTRINO-NUCLEUS INTERACTIONS IN
THE FEW-GEV REGION
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 8th International Workshop on Neutrino-Nucleus Interactions in the
Few-GeV Region (NUINT12)
CY OCT 22-27, 2012
CL Brazilian Ctr Phys Res, Rio de Janeiro, BRAZIL
HO Brazilian Ctr Phys Res
DE inclusive electron scattering from nuclei
ID LIGHT-NUCLEI; FREEDOM
AB We review the current status of calculations, based on realistic nuclear interactions and currents, of the inclusive electromagnetic response of nuclei in the quasi-elastic region.
C1 [Schiavilla, R.] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA.
[Schiavilla, R.] Jefferson Lab, Ctr Theory, Newport News, VA 23606 USA.
RP Schiavilla, R (reprint author), Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA.
NR 30
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1308-5
J9 AIP CONF PROC
PY 2015
VL 1663
AR 090001
DI 10.1063/1.4919496
PG 5
WC Physics, Applied; Physics, Particles & Fields
SC Physics
GA BC7KE
UT WOS:000354963900035
ER
PT S
AU Li, JW
Minami, H
Steward, E
Ma, T
Mohar, D
Robertson, C
Shung, KK
Zhou, QF
Patel, PM
Chen, ZP
AF Li, Jiawen
Minami, Hataka
Steward, Earl
Ma, Teng
Mohar, Dilbahar
Robertson, Claire
Shung, K. Kirk
Zhou, Qifa
Patel, Pranav M.
Chen, Zhongping
BE Choi, B
Kollias, N
Zeng, H
Kang, HW
Wong, BJF
Ilgner, JF
Nuttal, A
Richter, CP
Skala, MC
Dewhirst, MW
Tearney, GJ
Gregory, KW
Marcu, L
Mandelis, A
TI Ideal flushing agents for integrated optical acoustic imaging systems
SO PHOTONIC THERAPEUTICS AND DIAGNOSTICS XI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Photonic Therapeutics and Diagnostics XI
CY FEB 07-08, 2015
CL San Francisco, CA
SP SPIE, Assoc Res Otolaryngol
DE Optical coherence tomography; ultrasound; attenuation; multimodality
imaging
ID COHERENCE TOMOGRAPHY
AB An increased number of integrated optical acoustic intravascular imaging systems have been researched and hold great hope for accurate diagnosing of vulnerable plaques and for guiding atherosclerosis treatment. However, in any intravascular environment, vascular lumen is filled with blood, which is a high-scattering source for optical and high frequency ultrasound signals. Blood must be flushed away to make images clear. To our knowledge, no research has been performed to find the ideal flushing agent that works for both optical and acoustic imaging techniques. We selected three solutions, mannitol, dextran and iohexol, as flushing agents because of their image-enhancing effects and low toxicities. Quantitative testing of these flushing agents was performed in a closed loop circulation model and in vivo on rabbits.
C1 [Li, Jiawen; Chen, Zhongping] Univ Calif Irvine, Beckman Laser Inst, Irvine, CA 92617 USA.
[Li, Jiawen; Minami, Hataka; Chen, Zhongping] Univ Calif Irvine, Dept Biomed Engn, Irvine, CA 92697 USA.
[Steward, Earl; Mohar, Dilbahar; Patel, Pranav M.] Univ Calif Irvine, Sch Med, Irvine, CA 92868 USA.
[Ma, Teng; Shung, K. Kirk; Zhou, Qifa] Univ So Calif, NIH, Ultrason Transducer Resource Ctr, Los Angeles, CA 90089 USA.
[Robertson, Claire] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Li, JW (reprint author), Univ Calif Irvine, Beckman Laser Inst, 1002 Hlth Sci Rd, Irvine, CA 92617 USA.
NR 16
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-393-9
J9 PROC SPIE
PY 2015
VL 9303
AR 93032Z
DI 10.1117/12.2074696
PG 6
WC Engineering, Biomedical; Optics
SC Engineering; Optics
GA BC6PW
UT WOS:000354366400047
ER
PT J
AU Matanovic, I
Babanova, S
Perry, A
Serov, A
Artyushkova, K
Atanassov, P
AF Matanovic, Ivana
Babanova, Sofia
Perry, Albert, III
Serov, Alexey
Artyushkova, Kateryna
Atanassov, Plamen
TI Bio-inspired design of electrocatalysts for oxalate oxidation: a
combined experimental and computational study of Mn-N-C catalysts
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID BRILLOUIN-ZONE INTEGRATIONS; INITIO MOLECULAR-DYNAMICS; TOTAL-ENERGY
CALCULATIONS; AUGMENTED-WAVE METHOD; WET-AIR OXIDATION; OXYGEN
REDUCTION; ALKALINE MEDIA; PLATINUM CATALYSTS; OXALIC-ACID; FUEL-CELL
AB We report a novel non-platinum group metal (non-PGM) catalyst derived from Mn and amino-antipyrine (MnAAPyr) that shows electrochemical activity towards the oxidation of oxalic acid comparable to Pt with an onset potential for oxalate oxidation measured to be 0.714 +/- 0.002 V vs. SHE at pH = 4. The material has been synthesized using a templating Sacrificial Support Method with manganese nitrate and 4-aminoantipyrine as precursors. This catalyst is a nano-structured material in which Mn is atomically dispersed on a nitrogendoped graphene matrix. XPS studies reveal high abundance of pyridinic, Mn-Nx, and pyrrolic nitrogen pointing towards the conclusion that pyridinic nitrogen atoms coordinated to manganese constitute the active centers. Thus, the main features of the MnAAPyr catalyst are it exhibits similarity to the active sites of naturally occurring enzymes that are capable of efficient and selective oxidation of oxalic acid. Density functional theory in plane wave formalism with Perdew, Burke and Ernzerhof functional was further used to study the stability and activity of different one-metal active centers that could exist in the catalyst. The results show that the stability of the Mn-N-x sites changes in the following order: MnN4 > MnN3C > MnN2C2 > MnN3. Based on the overpotentials of 0.64 V and 0.71 V vs. SHE, calculated using the free energy diagrams for the oxalate oxidation mechanism, we could conclude that the MnN3C and MnN2C2 sites are most probable Mn-N-x sites responsible for the reported catalytic activity of the new catalyst.
C1 [Matanovic, Ivana; Babanova, Sofia; Perry, Albert, III; Serov, Alexey; Artyushkova, Kateryna; Atanassov, Plamen] Univ New Mexico, CMEM, Dept Chem & Biol Engn, Albuquerque, NM 87131 USA.
[Matanovic, Ivana] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Atanassov, P (reprint author), Univ New Mexico, CMEM, Dept Chem & Biol Engn, Albuquerque, NM 87131 USA.
EM plamen@unm.edu
RI Artyushkova, Kateryna/B-4709-2008
OI Artyushkova, Kateryna/0000-0002-2611-0422
FU US DOD, ARO-Multi-University Research Initiative [W911NF-14-1-0263];
Office of Science of the U.S. Department of Energy [DE-AC52-06NA25396,
DE-AC02-05CH11231]; CNMS
FX This work was supported by US DOD, ARO-Multi-University Research
Initiative grant W911NF-14-1-0263 to University of Utah. VASP license
was provided by Theoretical division, LANL, which is supported by the
Office of Science of the U.S. Department of Energy under Contract No.
DE-AC52-06NA25396. Computational work was performed using the
computational resources of 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, NERSC, supported by the Office of Science of the U.S.
Department of Energy under Contract No. DE-AC02-05CH11231, and CNMS,
sponsored at Oak Ridge National Laboratory by the Scientific User
Facilities Division, Office of Basic Energy Sciences, U.S. Department of
Energy. This paper has been designated LA-UR-14-29700.
NR 54
TC 7
Z9 7
U1 6
U2 36
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 20
BP 13235
EP 13244
DI 10.1039/c5cp00676g
PG 10
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CI0HC
UT WOS:000354416700007
PM 25785903
ER
PT J
AU Cheng, YW
Stolley, RM
Han, KS
Shao, YY
Arey, BW
Washton, NM
Mueller, KT
Helm, ML
Sprenkle, VL
Liu, J
Li, GS
AF Cheng, Yingwen
Stolley, Ryan M.
Han, Kee Sung
Shao, Yuyan
Arey, Bruce W.
Washton, Nancy M.
Mueller, Karl T.
Helm, Monte L.
Sprenkle, Vincent L.
Liu, Jun
Li, Guosheng
TI Highly active electrolytes for rechargeable Mg batteries based on a
[Mg-2(mu-Cl)(2)](2+) cation complex in dimethoxyethane
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID WIDE ELECTROCHEMICAL WINDOWS; MAGNESIUM BATTERIES; ION BATTERIES;
CURRENT COLLECTORS; GRIGNARD-REAGENT; NMR; SALTS; CATHODE; PERFORMANCE;
CHALLENGES
AB A novel [Mg-2(mu-Cl)(2)](2+) cation complex, which is highly active for reversible Mg electrodeposition, was identified for the first time in this work. This complex was found to be present in electrolytes formulated in dimethoxyethane (DME) through dehalodimerization of non-nucleophilic MgCl2 by reacting with either Mg salts (such as Mg(TFSI)(2), TFSI = bis(trifluoromethane) sulfonylimide) or Lewis acid salts (such as AlEtCl2 or AlCl3). The molecular structure of the cation complex was characterized by single crystal X-ray diffraction, Raman spectroscopy and NMR. The electrolyte synthesis process was studied and rational approaches for formulating highly active electrolytes were proposed. Through control of the anions, electrolytes with an efficiency close to 100%, a wide electrochemical window (up to 3.5 V) and a high ionic conductivity (46 mS cm(-1)) were obtained. The understanding of electrolyte synthesis in DME developed in this work could bring significant opportunities for the rational formulation of electrolytes of the general formula [Mg-2(mu-Cl)(2)][anion] x for practical Mg batteries.
C1 [Cheng, Yingwen; Shao, Yuyan; Sprenkle, Vincent L.; Liu, Jun; Li, Guosheng] Energy & Environm Directorate, Energy Proc & Mat Div, Richland, WA 99352 USA.
[Stolley, Ryan M.; Helm, Monte L.] Fundamental & Computat Sci Directorate, Catalysis Sci Div, Richland, WA 99352 USA.
[Han, Kee Sung; Arey, Bruce W.; Washton, Nancy M.; Mueller, Karl T.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Mueller, Karl T.] Penn State Univ, Dept Chem, University Pk, PA 16082 USA.
RP Li, GS (reprint author), Energy & Environm Directorate, Energy Proc & Mat Div, Richland, WA 99352 USA.
EM guosheng.li@pnnl.gov
RI Shao, Yuyan/A-9911-2008; Cheng, Yingwen/B-2202-2012
OI Shao, Yuyan/0000-0001-5735-2670; Cheng, Yingwen/0000-0002-0778-5504
FU U.S. Department of Energy (DOE) Office of Electricity Delivery and
Energy Reliability [57558]; Laboratory-Directed Research and Development
Program of Pacific Northwest National Laboratory (PNNL); DOE
[DE-AC05-76RL01830]; DOE's Office of Biological and Environmental
Research
FX We would like to gratefully acknowledge the support from the U.S.
Department of Energy (DOE) Office of Electricity Delivery and Energy
Reliability under Contract No. 57558 and the Laboratory-Directed
Research and Development Program of Pacific Northwest National
Laboratory (PNNL). NMR, Raman, and SEM characterization methods were
performed in the Environmental Molecular Sciences Laboratory, a national
scientific user facility sponsored by DOE's Office of Biological and
Environmental Research, located at PNNL. PNNL is a multiprogram
laboratory operated by Battelle Memorial Institute for the DOE under
Contract DE-AC05-76RL01830.
NR 40
TC 28
Z9 28
U1 12
U2 71
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 20
BP 13307
EP 13314
DI 10.1039/c5cp00859j
PG 8
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CI0HC
UT WOS:000354416700015
PM 25920549
ER
PT J
AU Yu, HG
AF Yu, Hua-Gen
TI Neural network iterative diagonalization method to solve eigenvalue
problems in quantum mechanics
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID POTENTIAL-ENERGY SURFACES; RESIDUAL FILTER DIAGONALIZATION;
TRANSITION-STATE RESONANCES; LANCZOS RECURSION METHOD; COMPUTING
EIGENVECTORS; DYNAMICS CALCULATIONS; VIBRATIONAL ENERGIES; REACTIVE
SCATTERING; GEOMETRIC PHASE; WAVE-PACKETS
AB We propose a multi-layer feed-forward neural network iterative diagonalization method (NNiDM) to compute some eigenvalues and eigenvectors of large sparse complex symmetric or Hermitian matrices. The NNiDM algorithm is developed by using the complex (or real) guided spectral transform Lanczos (cGSTL) method, thick restart technique, and multi-layered basis contraction scheme. Artificial neurons (or nodes) are defined by a set of formally orthogonal Lanczos polynomials, where the biases and weights are dynamically determined through a series of cGSTL iterations and small matrix diagonalizations. The algorithm starts with one random vector. The last output layer produces wanted eigenvalues and eigenvectors near a given reference value via a linear transform diagonalization approach. Since the algorithm uses the spectral transform technique, it is capable of computing interior eigenstates in dense spectrum regions. The general NNiDM algorithm is applied for calculating energies, widths, and wavefunctions of two typical molecules HO2 and CH4 as examples.
C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Yu, HG (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
EM hgy@bnl.gov
RI Yu, Hua-Gen/N-7339-2015
FU U.S. Department of Energy, Office of Science and its Division of
Chemical Sciences, Geosciences, and Biosciences within the Office of
Basic Energy Sciences [DE-AC02-98CH10886]; National Energy Research
Scientific Computing Center (NERSC) [DE-AC02-05CH11231]
FX This work was performed at Brookhaven National Laboratory under
Contracts No. DE-AC02-98CH10886 with the U.S. Department of Energy,
Office of Science, and supported by its Division of Chemical Sciences,
Geosciences, and Biosciences within the Office of Basic Energy Sciences.
It also used the resource at the National Energy Research Scientific
Computing Center (NERSC) under Contract No. DE-AC02-05CH11231. The
author thanks Dr Xiao-Gang Wang for providing the Fortran code of the WC
potential energy surface of methane.
NR 105
TC 1
Z9 1
U1 2
U2 10
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 21
BP 14071
EP 14082
DI 10.1039/c5cp01438g
PG 12
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CI7LY
UT WOS:000354946200033
PM 25959361
ER
PT S
AU Crabtree, G
AF Crabtree, George
BE Knapp, RH
Levi, BG
Kammen, DM
TI The Joint Center for Energy Storage Research: A New Paradigm for Battery
Research and Development
SO PHYSICS OF SUSTAINABLE ENERGY III (PSE III): USING ENERGY EFFICIENTLY
AND PRODUCING IT RENEWABLY
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 3rd Physics of Sustainable Energy (PSE) Conference
CY MAR 08-09, 2014
CL Berkeley, CA
SP Amer Phys Soc, Forum Phys & Soc, Amer Assoc Phys Teachers, Topical Grp Energy Res & Applicat, Renewable & Appropriate Energy Lab
DE energy storage; batteries; materials science; electrochemistry;
solvation
ID TRANSMISSION ELECTRON-MICROSCOPY; REDOX FLOW BATTERIES; LITHIUM-SULFUR
BATTERIES; LI-ION BATTERIES; LI-O-2 BATTERIES; RECHARGEABLE BATTERIES;
CATHODE MATERIALS; AIR BATTERIES; CHALLENGES; DEPOSITION
AB The Joint Center for Energy Storage Research (JCESR) seeks transformational change in transportation and the electricity grid driven by next generation high performance, low cost electricity storage. To pursue this transformative vision JCESR introduces a new paradigm for battery research: integrating discovery science, battery design, research prototyping and manufacturing collaboration in a single highly interactive organization. This new paradigm will accelerate the pace of discovery and innovation and reduce the time from conceptualization to commercialization. JCESR applies its new paradigm exclusively to beyond-lithium-ion batteries, a vast, rich and largely unexplored frontier. This review presents JCESR's motivation, vision, mission, intended outcomes or legacies and first year accomplishments.
C1 [Crabtree, George] Argonne Natl Lab, Joint Ctr Energy Storage Res, Argonne, IL 60439 USA.
[Crabtree, George] Univ Illinois, Chicago, IL 60607 USA.
RP Crabtree, G (reprint author), Argonne Natl Lab, Joint Ctr Energy Storage Res, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 91
TC 4
Z9 4
U1 1
U2 16
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1294-1
J9 AIP CONF PROC
PY 2015
VL 1652
BP 112
EP 128
DI 10.1063/1.4916174
PG 17
WC Energy & Fuels; Physics, Applied
SC Energy & Fuels; Physics
GA BC7HL
UT WOS:000354881700011
ER
PT S
AU Budnitz, RJ
AF Budnitz, Robert J.
BE Knapp, RH
Levi, BG
Kammen, DM
TI Topics in Nuclear Power
SO PHYSICS OF SUSTAINABLE ENERGY III (PSE III): USING ENERGY EFFICIENTLY
AND PRODUCING IT RENEWABLY
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 3rd Physics of Sustainable Energy (PSE) Conference
CY MAR 08-09, 2014
CL Berkeley, CA
SP Amer Phys Soc, Forum Phys & Soc, Amer Assoc Phys Teachers, Topical Grp Energy Res & Applicat, Renewable & Appropriate Energy Lab
AB The 101 nuclear plants operating in the US today are far safer than they were 20-30 years ago. For example, there's been about a 100-fold reduction in the occurrence of "significant events" since the late 1970s. Although the youngest of currently operating US plants was designed in the 1970s, all have been significantly modified over the years. Key contributors to the safety gains are a vigilant culture, much improved equipment reliability, greatly improved training of operators and maintenance workers, worldwide sharing of experience, and the effective use of probabilistic risk assessment. Several manufacturers have submitted high quality new designs for large reactors to the U.S. Nuclear Regulatory Commission (NRC) for design approval, and several companies are vigorously working on designs for smaller, modular reactors. Although the Fukushima reactor accident in March 2011 in Japan has been an almost unmitigated disaster for the local population due to their being displaced from their homes and workplaces and also due to the land contamination, its "lessons learned" have been important for the broader nuclear industry, and will surely result in safer nuclear plants worldwide - indeed, have already done so, with more safety improvements to come.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Budnitz, RJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
NR 0
TC 0
Z9 0
U1 1
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1294-1
J9 AIP CONF PROC
PY 2015
VL 1652
BP 145
EP 152
DI 10.1063/1.4916177
PG 8
WC Energy & Fuels; Physics, Applied
SC Energy & Fuels; Physics
GA BC7HL
UT WOS:000354881700014
ER
PT S
AU Ebata, T
Kusaka, R
Xantheas, SS
AF Ebata, Takayuki
Kusaka, Ryoji
Xantheas, Sotiris S.
BE Simos, TE
Maroulis, G
TI Laser Spectroscopic and Theoretical Studies of the Structures and
Encapsulation Motifs of Functional Molecules
SO PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN
SCIENCES AND ENGINEERING 2010 (ICCMSE-2010)
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference of Computational Methods in Sciences and
Engineering (ICCMSE)
CY OCT 03-08, 2010
CL Kos, GREECE
SP European Soc Computat Methods Sci, Engn & Technol
DE Functional molecules; Molecular recognition; guest-host interactions;
laser spectroscopy; electronic structure calculations
ID BASIS-SETS; DIBENZO-18-CROWN-6-ETHER; CHEMISTRY; SYSTEMS
AB Extensive laser spectroscopic and theoretical studies have been recently carried out with the aim to reveal the structure and dynamics of encapsulation complexes in the gas phase. The characteristics of the encapsulation complexes are governed by the fact that (i) most of the host molecules are flexible and (0 the complexes form high dimensional structures by using weak non-covalent interactions. These characteristics result in the possibility of the coexistence of many confonners in close energetic proximity. The combination of supersonic jet/laser spectroscopy and high level quantum chemical calculations is essential in tackling these challenging problems. In this report we describe our recent studies on the structures and dynamics of the encapsulation complexes formed by calix[4]arene dibenzo-18-crown-6-ether (DB1.8C6), and benzo-18-crown-6-ether (B18C6) "hosts" interacting with N-2, acetylene, water, and ammonia "guest" molecules. The gaseous host-guest complexes are generated under jet-cooled conditions. We apply various laser spectroscopic methods to obtain the conformer- and isomer-specified electronic and IR spectra. The experimental results are complemented with quantum chemical calculations ranging front density functional theory to high level first principles calculations at the MP2 and CCSD(T) levels of theory. We discuss the possible conformations of the bare host molecules, the structural changes they undergo upon complexation, and the key interactions that are responsible in stabilizing the specific complexes.
C1 [Ebata, Takayuki; Kusaka, Ryoji] Hiroshima Univ, Grad Sch Sci, Dept Chem, Higashihiroshima 7398526, Japan.
[Xantheas, Sotiris S.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA.
RP Ebata, T (reprint author), Hiroshima Univ, Grad Sch Sci, Dept Chem, Kagamiyama 1-3-1, Higashihiroshima 7398526, Japan.
RI Xantheas, Sotiris/L-1239-2015
NR 25
TC 0
Z9 0
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1282-8
J9 AIP CONF PROC
PY 2015
VL 1642
BP 51
EP 59
DI 10.1063/14906630
PG 9
WC Physics, Applied
SC Physics
GA BC7GK
UT WOS:000354845400006
ER
PT J
AU Dasha, A
Knapp, FFR
AF Dasha, Ashutosh
Knapp, F. F. (Russ), Jr.
TI An overview of radioisotope separation technologies for development of
W-188/Re-188 radionuclide generators providing Re-188 to meet future
research and clinical demands
SO RSC ADVANCES
LA English
DT Review
ID ELECTRO-AMALGAMATION APPROACH; NUCLEAR MEDICAL APPLICATIONS;
ANION-EXCHANGE RESINS; TUNGSTEN-188/RHENIUM-188 GENERATOR; POTENTIAL
STEP; GEL GENERATOR; RE-188-LABELED RADIOPHARMACEUTICALS; THERAPEUTIC
APPLICATIONS; BIOMEDICAL APPLICATIONS; GE-68/GA-68 GENERATOR
AB The role of the tungsten-188/rhenium-188 (W-188/Re-188) generator system to provide the no-carrier added (NCA) Re-188 therapeutic radionuclide for applications in nuclear medicine and oncology is well established. The evolution and successful use of the W-188/Re-188 generator in nuclear medicine has resulted from new discoveries and innovations from separation science along with technological advances which have broadened the scope and utility of W-188/Re-188 generators. Nonetheless, there are still additional opportunities for improvements and innovations in separation science which will undoubtedly continue to provide improvements in W-188/Re-188 generator technology. In this review, we discuss the reported separation technologies such as the adsorption-type systems which have been traditionally used as well as emerging separation technologies which have the potential for further development of W-188/Re-188 generator systems. This article also outlines the comparative advantages and disadvantages of various key separation technologies. Further, the regulatory challenges, the impact on W-188/Re-188 technology with the emergence of professionally run central radiopharmacies, and the role of automation are discussed.
C1 [Dasha, Ashutosh] Bhabha Atom Res Ctr, Isotope Prod & Applicat Div, Bombay 400085, Maharashtra, India.
[Knapp, F. F. (Russ), Jr.] Oak Ridge Natl Lab, Isotope Dev Grp, Med Isotopes Program, Oak Ridge, TN 37831 USA.
RP Knapp, FFR (reprint author), Oak Ridge Natl Lab, Isotope Dev Grp, Med Isotopes Program, Room 203,MS 6229,Bldg 4501,POB 2008, Oak Ridge, TN 37831 USA.
EM knapp.r@ornl.gov
OI Dash, Ashutosh/0000-0001-7541-7298
NR 124
TC 1
Z9 1
U1 5
U2 13
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2046-2069
J9 RSC ADV
JI RSC Adv.
PY 2015
VL 5
IS 49
BP 39012
EP 39036
DI 10.1039/c5ra03890a
PG 25
WC Chemistry, Multidisciplinary
SC Chemistry
GA CH7FQ
UT WOS:000354201500026
ER
PT S
AU Kim, J
Li, TC
Wang, Y
Zhang, X
AF Kim, Jeongmin
Li, Tongcang
Wang, Yuan
Zhang, Xiang
BE Brown, TG
Cogswell, CJ
Wilson, T
TI Resolving power in direct oblique plane imaging
SO THREE-DIMENSIONAL AND MULTIDIMENSIONAL MICROSCOPY: IMAGE ACQUISITION AND
PROCESSING XXII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Three-Dimensional and Multidimensional Microscopy - Image
Acquisition and Processing XXII
CY FEB 09-12, 2015
CL San Francisco, CA
SP SPIE
DE Oblique plane imaging; oblique plane microscopy; vectorial diffraction
theory; asymmetric pupil function; point spread function; optical
transfer function; optical resolution; remote focusing
ID OPTICAL TRANSFER-FUNCTION; MICROSCOPY
AB Direct oblique plane imaging is a high-speed microscopy technique that observes a sample's plane that is inclined to the focal plane of the microscope objective lens. This wide-field microscopy is suitable for a study of fast dynamics of living samples where the principle plane of interest is tilted to the focal plane. A way to implement this imaging technique is to use remote focusing together with a tilted mirror, which involves asymmetrical pupil function of the imaging system. We rigorously study the anisotropic resolving power of the oblique plane imaging using a vectorial diffraction theory. From the derived effective pupil function, we calculate vectorial point spread function (PSF) and optical transfer function (OTF). We show that the two-dimensional (2D) PSF of the direct oblique plane imaging is not merely an oblique cross-section of the 3D PSF of circular aperture system. Similarly, 2D OTF of the oblique plane imaging is different from 2D oblique projection of conventional 3D OTF in circular aperture system.
C1 [Kim, Jeongmin; Wang, Yuan; Zhang, Xiang] NSF Nanoscale Sci & Engn Ctr, Berkeley, CA 94720 USA.
[Li, Tongcang] Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA.
[Zhang, Xiang] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Kim, J (reprint author), NSF Nanoscale Sci & Engn Ctr, 3112 Etcheverry Hall, Berkeley, CA 94720 USA.
EM jmk@berkeley.edu
NR 10
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-420-2
J9 PROC SPIE
PY 2015
VL 9330
AR 93300E
DI 10.1117/12.2078008
PG 5
WC Microscopy; Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Microscopy; Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BC6NG
UT WOS:000354168000008
ER
PT S
AU Mark, AE
Davis, MA
Starosta, MS
Dunn, AK
AF Mark, Andrew E.
Davis, Mitchell A.
Starosta, Matthew S.
Dunn, Andrew K.
BE Brown, TG
Cogswell, CJ
Wilson, T
TI Computational modeling of STED microscopy through multiple biological
cells under one- and two-photon excitation
SO THREE-DIMENSIONAL AND MULTIDIMENSIONAL MICROSCOPY: IMAGE ACQUISITION AND
PROCESSING XXII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Three-Dimensional and Multidimensional Microscopy - Image
Acquisition and Processing XXII
CY FEB 09-12, 2015
CL San Francisco, CA
SP SPIE
DE STED microscopy; superresolution; computational modeling; FDTD method;
light scattering
ID STIMULATED-EMISSION; ELECTROMAGNETIC DIFFRACTION; FLUORESCENCE
MICROSCOPY; OPTICAL SYSTEMS; BRAIN-SLICES; IMAGE FIELD; RESOLUTION;
NANOSCOPY; DEEP
AB While superresolution optical microscopy techniques afford enhanced resolution for biological applications, they have largely been used to study structures in isolated cells. We use the FDTD method to simulate the propagation of focused beams for STED microscopy through multiple biological cells. We model depletion beams that provide 2D and 3D confinement of the fluorescence spot and assess the effective PSF of the system as a function of focal depth. We compare the relative size of the STED effective PSF under one- and two-photon excitation. PSF calculations suggest that imaging is possible up to the maximum simulation depth if the fluorescence emission remains detectable.
C1 [Mark, Andrew E.; Davis, Mitchell A.] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA.
[Starosta, Matthew S.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Dunn, Andrew K.] Univ Texas Austin, Dept Biomed Engn, Austin, TX 78712 USA.
RP Mark, AE (reprint author), Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA.
NR 20
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-420-2
J9 PROC SPIE
PY 2015
VL 9330
AR 93300V
DI 10.1117/12.2078345
PG 9
WC Microscopy; Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Microscopy; Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BC6NG
UT WOS:000354168000015
ER
PT J
AU Duckworth, K
Spencer, M
Bates, C
Miller, ME
Almquist, C
Grimaila, M
Magnuson, M
Willison, S
Phillips, R
Racz, L
AF Duckworth, Kelsey
Spencer, Michael
Bates, Christopher
Miller, Michael E.
Almquist, Catherine
Grimaila, Michael
Magnuson, Matthew
Willison, Stuart
Phillips, Rebecca
Racz, LeeAnn
TI Advanced oxidation degradation kinetics as a function of ultraviolet LED
duty cycle
SO WATER SCIENCE AND TECHNOLOGY
LA English
DT Article
DE hydrogen peroxide; light emitting diode; methylene blue; ultraviolet
ID LIGHT EMITTING DIODES; AQUEOUS-SOLUTION; UV; EFFICIENCY; ILLUMINATION;
PHENOL
AB Ultraviolet (UV) light emitting diodes (LEDs) may be a viable option as a UV light source for advanced oxidation processes (AOPs) utilizing photocatalysts or oxidizing agents such as hydrogen peroxide. The effect of UV-LED duty cycle, expressed as the percentage of time the LED is powered, was investigated in an AOP with hydrogen peroxide, using methylene blue (MB) to assess contaminant degradation. The UV-LED AOP degraded the MB at all duty cycles. However, adsorption of MB onto the LED emitting surface caused a linear decline in reactor performance over time. With regard to the effect of duty cycle, the observed rate constant of MB degradation, after being adjusted to account for the duty cycle, was greater for 5 and 10% duty cycles than higher duty cycles, providing a value approximately 160% higher at 5% duty cycle than continuous operation. This increase in adjusted rate constant at low duty cycles, as well as contaminant fouling of the LED surface, may impact design and operational considerations for pulsed UV-LED AOP systems.
C1 [Duckworth, Kelsey; Spencer, Michael; Bates, Christopher; Miller, Michael E.; Grimaila, Michael; Racz, LeeAnn] Air Force Inst Technol, Dept Syst Engn & Management, Wright Patterson AFB, OH 45433 USA.
[Almquist, Catherine] Miami Univ, Chem Paper & Biomed Engn Dept, Oxford, OH 45056 USA.
[Magnuson, Matthew; Willison, Stuart] US EPA, Natl Homeland Secur Res Ctr, Water Infrastruct Protect Div, Cincinnati, OH 45268 USA.
[Phillips, Rebecca] US EPA, Oak Ridge Inst Sci & Educ, Cincinnati, OH 45268 USA.
RP Miller, ME (reprint author), Air Force Inst Technol, Dept Syst Engn & Management, 2950 Hobson Way, Wright Patterson AFB, OH 45433 USA.
EM michael.miller@afit.edu
OI Phillips, Rebecca/0000-0002-7270-7078
FU US Environmental Protection Agency through Office of Research and
Development [92370201]; appointment to the Internship/Research
Participation Program at the National Homeland Security Research Center,
Water Infrastructure Protection Division, US Environmental Protection
Agency
FX The US Environmental Protection Agency through its Office of Research
and Development partially funded and collaborated in the research
described here under Interagency Agreement 92370201. It has been
subjected to the Agency's review and approved for publication. Approval
does not signify that the contents necessarily reflect the views of the
Agency. Mention of trade names, products, or services does not convey
official EPA approval, endorsement, or recommendation. This project was
supported in part by an appointment to the Internship/Research
Participation Program at the National Homeland Security Research Center,
Water Infrastructure Protection Division, US Environmental Protection
Agency, administered by the Oak Ridge Institute for Science and
Education through an interagency agreement between the US Department of
Energy and EPA. The authors would like to acknowledge the support of
Sarah Fyda, Nate Godby and Robert Scott for collecting a portion of the
experimental data.
NR 19
TC 1
Z9 1
U1 6
U2 21
PU IWA PUBLISHING
PI LONDON
PA ALLIANCE HOUSE, 12 CAXTON ST, LONDON SW1H0QS, ENGLAND
SN 0273-1223
EI 1996-9732
J9 WATER SCI TECHNOL
JI Water Sci. Technol.
PY 2015
VL 71
IS 9
BP 1375
EP 1381
DI 10.2166/wst.2015.108
PG 7
WC Engineering, Environmental; Environmental Sciences; Water Resources
SC Engineering; Environmental Sciences & Ecology; Water Resources
GA CI4NF
UT WOS:000354726000014
PM 25945855
ER
PT S
AU Karstens, W
Smith, DY
AF Karstens, W.
Smith, D. Y.
GP IOP
TI Inertial and interference effects in optical spectroscopy
SO 12TH EUROPHYSICAL CONFERENCE ON DEFECTS IN INSULATING MATERIALS (EURODIM
2014)
SE IOP Conference Series-Materials Science and Engineering
LA English
DT Proceedings Paper
CT 12th Europhysical Conference on Defects in Insulating Materials
(EURODIM)
CY JUL 13-18, 2014
CL Univ Kent, Canterbury, UNITED KINGDOM
HO Univ Kent
AB Interference between free-space and material components of the displacement current plays a key role in determining optical properties. This is illustrated by an analogy between the Lorentz optical model and a-c circuits. Phase shifts in material-polarization currents, which are inertial, relative to the non-inertial vacuum-polarization current cause interference in the total displacement current and, hence, variation in E-M wave propagation. If the displacement-current is reversed, forward propagation is inhibited yielding the semimetallic reflectivity exhibited by intrinsic silicon. Complete cancellation involves material currents offsetting free-space currents to form current-loops that correspond to plasmons.
C1 [Karstens, W.] St Michaels Coll, Colchester, VT 05439 USA.
[Smith, D. Y.] Univ Vermont, Phys, Burlington, VT 05405 USA.
[Smith, D. Y.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Karstens, W (reprint author), St Michaels Coll, Colchester, VT 05439 USA.
EM dysmith@uvm.edu
NR 19
TC 0
Z9 0
U1 1
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1757-8981
J9 IOP CONF SER-MAT SCI
PY 2015
VL 80
AR 012012
DI 10.1088/1757-899X/80/1/012012
PG 5
WC Materials Science, Multidisciplinary
SC Materials Science
GA BC6YP
UT WOS:000354607400012
ER
PT J
AU Ramakrishnan, R
von Lilienfeld, OA
AF Ramakrishnan, Raghunathan
von Lilienfeld, O. Anatole
TI Many Molecular Properties from One Kernel in Chemical Space
SO CHIMIA
LA English
DT Article
DE Chemical Space; Kernel Ridge Regression; Machine learning; Molecular
properties; Quantum chemistry
ID BIG DATA; PRINCIPLE; SCIENCE
AB We introduce property-independent kernels for machine learning models of arbitrarily many molecular properties. The kernels encode molecular structures for training sets of varying size, as well as similarity measures sufficiently diffuse in chemical space to sample over all training molecules. When provided with the corresponding molecular reference properties, they enable the instantaneous generation of machine learning models which can be systematically improved through the addition of more data. This idea is exemplified for single kernel based modeling of internal energy, enthalpy, free energy, heat capacity, polarizability, electronic spread, zero-point vibrational energy, energies of frontier orbitals, HOMO-LUMO gap, and the highest fundamental vibrational wavenumber. Models of these properties are trained and tested using 112,000 organic molecules of similar size. The resulting models are discussed as well as the kernels' use for generating and using other property models.
C1 [Ramakrishnan, Raghunathan; von Lilienfeld, O. Anatole] Univ Basel, Inst Phys Chem, CH-4056 Basel, Switzerland.
[Ramakrishnan, Raghunathan; von Lilienfeld, O. Anatole] Univ Basel, Natl Ctr Computat Design & Discovery Novel Mat MA, Dept Chem, CH-4056 Basel, Switzerland.
[von Lilienfeld, O. Anatole] Argonne Natl Lab, Argonne Leadership Comp Facil, Lemont, IL 60439 USA.
RP von Lilienfeld, OA (reprint author), Univ Basel, Inst Phys Chem, Klingelbergstr 80, CH-4056 Basel, Switzerland.
EM anatole.vonlilienfeld@unibas.ch
RI Ramakrishnan, Raghunathan/C-7250-2015; von Lilienfeld, O.
Anatole/D-8529-2011
OI Ramakrishnan, Raghunathan/0000-0003-0866-3645;
FU Swiss National Science foundation [PP00P2_138932]; Office of Science of
the U.S. DOE [DE-AC02-06CH11357]
FX OAvL acknowledges funding from the Swiss National Science foundation
(No. PP00P2_138932). Some calculations were performed at sciCORE
(http://scicore.unibas.ch/) scientific computing core facility at
University of Basel. This research used resources of the Argonne
Leadership Computing Facility at Argonne National Laboratory, which is
supported by the Office of Science of the U.S. DOE under contract
DE-AC02-06CH11357.
NR 25
TC 7
Z9 7
U1 4
U2 13
PU SWISS CHEMICAL SOC
PI BERN
PA SCHWARZTORSTRASSE 9, CH-3007 BERN, SWITZERLAND
SN 0009-4293
J9 CHIMIA
JI Chimia
PY 2015
VL 69
IS 4
BP 182
EP 186
DI 10.2533/chimia.2015.182
PG 5
WC Chemistry, Multidisciplinary
SC Chemistry
GA CI1MB
UT WOS:000354507200005
PM 26672132
ER
PT J
AU Huang, JH
Azimi, N
Cheng, L
Shkrob, IA
Xue, Z
Zhang, JJ
Rago, NLD
Curtiss, LA
Amine, K
Zhang, ZC
Zhang, L
AF Huang, Jinhua
Azimi, Nasim
Cheng, Lei
Shkrob, Ilya A.
Xue, Zheng
Zhang, Junjie
Rago, Nancy L. Dietz
Curtiss, Larry A.
Amine, Khalil
Zhang, Zhengcheng
Zhang, Lu
TI An organophosphine oxide redox shuttle additive that delivers long-term
overcharge protection for 4 V lithium-ion batteries
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID OVERDISCHARGE PROTECTION; CHEMICAL OVERCHARGE; PERFORMANCE; CELLS
AB Redox shuttle additives are used to protect Li-ion batteries from overcharge. Increased operating voltage requires striking a balance between a high redox potential and electrochemical stability. 1,4-Bis[bis(1-methylethyl) phosphinyl]-2,5-dimethoxybenzene (BPDB) exhibits a redox potential of 4.5 V vs. Li/Li+ and provides stable overcharge protection for 4 V cells delivering 95 cycles of 100% overcharge ratio.
C1 [Huang, Jinhua; Cheng, Lei; Curtiss, Larry A.; Amine, Khalil; Zhang, Zhengcheng; Zhang, Lu] Argonne Natl Lab, Joint Ctr Energy Storage Res, Lemont, IL 60439 USA.
[Huang, Jinhua; Azimi, Nasim; Shkrob, Ilya A.; Xue, Zheng; Rago, Nancy L. Dietz; Amine, Khalil; Zhang, Zhengcheng; Zhang, Lu] Argonne Natl Lab, Chem Sci & Engn Div, Lemont, IL 60439 USA.
[Cheng, Lei; Zhang, Junjie; Curtiss, Larry A.] Argonne Natl Lab, Mat Sci Div, Lemont, IL 60439 USA.
RP Zhang, ZC (reprint author), Argonne Natl Lab, Joint Ctr Energy Storage Res, Lemont, IL 60439 USA.
EM zzhang@anl.gov; luzhang@anl.gov
RI Zhang, junjie/C-4129-2008
OI Zhang, junjie/0000-0002-5561-1330
FU Joint Center for Energy Storage Research (JCESR), an Energy Innovation
Hub - U.S. Department of Energy, Office of Science, Basic Energy
Sciences; U.S. Department of Energy Office of Science laboratory
[DE-AC02-06CH11357]
FX This work was supported as part of the Joint Center for Energy Storage
Research (JCESR), an Energy Innovation Hub funded by the U.S. Department
of Energy, Office of Science, Basic Energy Sciences. The submitted
manuscript has been created by UChicago Argonne, LLC, Operator of
Argonne National Laboratory ("Argonne"). Argonne, a U.S. Department of
Energy Office of Science laboratory, is operated under Contract no.
DE-AC02-06CH11357.
NR 32
TC 7
Z9 8
U1 5
U2 33
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 20
BP 10710
EP 10714
DI 10.1039/c5ta01326g
PG 5
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CH9ZN
UT WOS:000354395400011
ER
PT J
AU Steirer, KX
Richards, RE
Sigdel, AK
Garcia, A
Ndione, PF
Hammond, S
Baker, D
Ratcliff, EL
Curtis, C
Furtak, T
Ginley, DS
Olson, DC
Armstrong, NR
Berry, JJ
AF Steirer, K. X.
Richards, R. E.
Sigdel, A. K.
Garcia, A.
Ndione, P. F.
Hammond, S.
Baker, D.
Ratcliff, E. L.
Curtis, C.
Furtak, T.
Ginley, D. S.
Olson, D. C.
Armstrong, N. R.
Berry, J. J.
TI Nickel oxide interlayer films from nickel formate-ethylenediamine
precursor: influence of annealing on thin film properties and
photovoltaic device performance
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID ORGANIC SOLAR-CELLS; HOLE TRANSPORT LAYERS; THERMAL-DECOMPOSITION;
INFRARED-SPECTROSCOPY; VIBRATIONAL-SPECTRA; INTERFACIAL LAYER; WORK
FUNCTION; BUFFER LAYER; COMPLEXES; METAL
AB An organometallic ink based on the nickel formate-ethylenediamine (Ni(O2CH)(2)(en)(2)) complex forms high performance NiOx thin film hole transport layers (HTL) in organic photovoltaic (OPV) devices. Improved understanding of these HTLs functionality can be gained from temperature-dependent decomposition/oxidation chemistries during film formation and corresponding chemical structure-function relationships for energetics, charge selectivity, and transport in photovoltaic platforms. Investigations of as-cast films annealed in air (at 150 degrees C-350 degrees C), with and without subsequent O-2-plasma treatment, were performed using thermogravimetric analysis, Fourier transform infrared spectroscopy, ultraviolet and X-ray photoelectron spectroscopy, and spectroscopic ellipsometry to elucidate the decomposition and oxidation of the complex to NiOx. Regardless of the anneal temperature, after exposure to O-2-plasma, these HTLs exhibit work functions greater than the ionization potential of a prototype donor polymer poly(N-90-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole) (PCDTBT), thereby meeting a primary requirement of energy level alignment. Thus, bulk-heterojunction (BHJ), OPV solar cells made on this series of NiOx HTLs all exhibit similar open circuit voltages (V-oc). In contrast, the short circuit currents increase significantly from 1.7 to 11.2 mA cm(-2) upon increasing the anneal temperature from 150 degrees C to 250 degrees C. Concomitantly, increased conductivity and electrical homogeneity of NiOx thin films are observed at the nanoscale using conductive tip-AFM. Similar V-oc observed for all the O-2-plasma treated NiOx interlayers and variations to nanoscale conductivity suggest that the HTLs all form charge selective contacts and that their carrier extraction efficiency is determined by the amount of precursor conversion to NiOx. The separation of these two properties: selectivity and conductivity, sheds further light on charge selective interlayer functionality.
C1 [Steirer, K. X.; Richards, R. E.; Armstrong, N. R.] Univ Arizona, Dept Chem & Biochem, Tucson, AZ 85721 USA.
[Sigdel, A. K.] Univ Denver, Dept Phys & Astron, Denver, CO USA.
[Steirer, K. X.; Sigdel, A. K.; Garcia, A.; Ndione, P. F.; Hammond, S.; Curtis, C.; Ginley, D. S.; Olson, D. C.; Berry, J. J.] Natl Renewable Energy Lab, Golden, CO USA.
[Steirer, K. X.; Baker, D.; Furtak, T.] Colorado Sch Mines, Appl Phys Dept, Golden, CO 80401 USA.
[Ratcliff, E. L.] Univ Arizona, Dept Mat Sci & Engn, Tucson, AZ 85721 USA.
RP Steirer, KX (reprint author), Univ Arizona, Dept Chem & Biochem, Tucson, AZ 85721 USA.
EM Steirer@NREL.GOV; Joseph.Berry@NREL.GOV
RI Richards, Ryan/B-3513-2008; Ndione, Paul/O-6152-2015
OI Ndione, Paul/0000-0003-4444-2938
FU Center for Interface Science: Solar Electric Materials, an Energy
Frontier Research Center - U.S. Department of Energy, Office of Science,
Basic Energy Sciences [DE-SC0001084]; NREL LDRD [ARE21000]
FX Thank you Professor Reuben T. Collins at the Colorado School of Mines
for thoughtful discussions. Research supported as part of the Center for
Interface Science: Solar Electric Materials, an Energy Frontier Research
Center funded the U.S. Department of Energy, Office of Science, Basic
Energy Sciences, under Award Number DE-SC0001084 (NRA, ELR, RER, KXS),
and NREL LDRD Number ARE21000.
NR 80
TC 3
Z9 3
U1 6
U2 32
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 20
BP 10949
EP 10958
DI 10.1039/c5ta01379h
PG 10
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CH9ZN
UT WOS:000354395400042
ER
PT S
AU Mitra, D
Bouthcko, R
Ray, J
Nilsen-Hamitton, M
AF Mitra, Debasis
Bouthcko, Rostyslav
Ray, Judhajeet
Nilsen-Hamitton, Marit
BE Gurcan, MN
Madabhushi, A
TI Detecting Cells in Time Varying Intensity Images in Confocal Microscopy
For Gene Expression Studies in Living Cells
SO MEDICAL IMAGING 2015: DIGITAL PATHOLOGY
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Medical Imaging - Digital Pathology
CY FEB 25-26, 2015
CL Orlando, FL
SP SPIE, ALIO Ind, Alpin Med Syst, Modus Med Devices Inc, Bruker
DE Confocal microscopy; FRET imaging; live cell gene expression study;
Quantitative biology; Cell detection on time-lapsed image sequence; Time
series estimation from image; Scale-space algorithm
AB In this work we present a time-lapsed confocal microscopy image analysis technique for an automated gene expression study of multiple single living cells. Fluorescence Resonance Energy Transfer (FRET) is a technology by which molecule-to-molecule interactions are visualized. We analyzed a dynamic series of similar to 10(2) images obtained using confocal microscopy of fluorescence in yeast cells containing RNA reporters that give a FRET signal when the gene promoter is activated. For each time frame, separate images are available for three spectral channels and the integrated intensity snapshot of the system. A large number of time-lapsed frames must be analyzed to identify each cell individually across time and space, as it is moving in and out of the focal plane of the microscope. This makes it a difficult image processing problem. We have proposed an algorithm here, based on scale-space technique, which solves the problem satisfactorily. The algorithm has multiple directions for even further improvement. The ability to rapidly measure changes in gene expression simultaneously in many cells in a population will open the opportunity for real-time studies of the heterogeneity of genetic response in a living cell population and the interactions between cells that occur in a mixed population, such as the ones found in the organs and tissues of multicellular organisms.
C1 [Mitra, Debasis] Florida Inst Technol Melbourne, Dept Comp Sci, Melbourne, FL 32901 USA.
[Bouthcko, Rostyslav] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Ray, Judhajeet; Nilsen-Hamitton, Marit] Iowa State Univ, Ames Lab, Ames, IA USA.
[Ray, Judhajeet; Nilsen-Hamitton, Marit] Iowa State Univ, Roy J Carver Dept Biochem Biophys & Mol Biol, Ames, IA USA.
RP Mitra, D (reprint author), Florida Inst Technol Melbourne, Dept Comp Sci, Melbourne, FL 32901 USA.
NR 6
TC 0
Z9 0
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-510-0
J9 PROC SPIE
PY 2015
VL 9420
AR 942011
DI 10.1117/12.2081691
PG 4
WC Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BC6QB
UT WOS:000354372500034
ER
PT S
AU Kulshreshtha, P
Maruyama, K
Dhuey, S
Ziegler, D
Chao, WL
Ashby, P
Olynicka, D
AF Kulshreshtha, Prashant
Maruyama, Ken
Dhuey, Scott
Ziegler, Dominik
Chao, Weilun
Ashby, Paul
Olynick, Deirdre
BE Wallow, TI
Hohle, CK
TI Revealing beam-induced chemistry using modulus mapping in negative-tone
EUV/e-beam resists with and without cross-linker additives
SO ADVANCES IN PATTERNING MATERIALS AND PROCESSES XXXII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Advances in Patterning Materials and Processes XXXII
CY FEB 23-26, 2015
CL San Jose, CA
SP SPIE, Tokyo Ohka Kogyo Amer Inc
DE Peak Force Tapping; Modulus; E-beam pattern; AFM; pattern collapse;
chemically amplified; bias; high resolution
ID CALIBRATION; NORIA
AB One of the key challenges to high resolution resist patterning is probing the resist properties at length scales commensurate with the pattern size. Using a new scanning probe microscopy (SPM), Peak Force (TM) tapping, we map exposure dependent nanoscale modulus of the exposed/developed resist patterns with sub-10 nm resolution. By innovative electron beam exposure pattern design, the SPM technique reveals that resist modulus follows the height contrast profile, but with a shift to higher exposure doses. SEM image analysis of patterned resist structures confirm that the best line-space patterns are achieved at exposure dose where modulus reaches its maximum and shows how modulus can be used to probe patternability of resist systems.
C1 [Maruyama, Ken; Dhuey, Scott; Ashby, Paul; Olynick, Deirdre] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
[Chao, Weilun] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
[Maruyama, Ken] JSR Micro INC, Sunnyvale, CA 94089 USA.
RP Kulshreshtha, P (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM pdashby@lbl.gov; dlolynick@lbl.gov
RI Foundry, Molecular/G-9968-2014
NR 14
TC 0
Z9 0
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-527-8
J9 PROC SPIE
PY 2015
VL 9425
AR 94250I
DI 10.1117/12.2086045
PG 11
WC Materials Science, Multidisciplinary; Optics
SC Materials Science; Optics
GA BC6OL
UT WOS:000354251700015
ER
PT S
AU Brutnell, TP
Bennetzen, JL
Vogel, JP
AF Brutnell, Thomas P.
Bennetzen, Jeffrey L.
Vogel, John P.
BE Merchant, SS
TI Brachypodium distachyon and Setaria viridis: Model Genetic Systems for
the Grasses
SO ANNUAL REVIEW OF PLANT BIOLOGY, VOL 66
SE Annual Review of Plant Biology
LA English
DT Review; Book Chapter
DE genomics; high-throughput sequencing; forward genetics; reverse genetics
ID AGROBACTERIUM-MEDIATED TRANSFORMATION; GENOME-WIDE ASSOCIATION; BULKED
SEGREGANT ANALYSIS; FOXTAIL MILLET; FOOD SECURITY; INBRED LINES;
POPULATION-STRUCTURE; FUNCTIONAL GENOMICS; INDUCED MUTATIONS; AGRONOMIC
TRAITS
AB The family of grasses encompasses the world's most important food, feed, and bioenergy crops, yet we are only now beginning to develop the genetic resources to explore the diversity of form and function that underlies economically important traits. Two emerging model systems, Brachypodium distachyon and Setaria viridis, promise to greatly accelerate the process of gene discovery in the grasses and to serve as bridges in the exploration of panicoid and pooid grasses, arguably two of the most important clades of plants from a food security perspective. We provide both a historical view of the development of plant model systems and highlight several recent reports that are providing these developing communities with the tools for gene discovery and pathway engineering.
C1 [Brutnell, Thomas P.] Donald Danforth Plant Sci Ctr, St Louis, MO 63132 USA.
[Brutnell, Thomas P.] Henan Agr Univ, Collaborat Innovat Ctr Henan Grain Crops, Zhengzhou 450002, Peoples R China.
[Brutnell, Thomas P.] Henan Agr Univ, Natl Key Lab Wheat & Maize Crop Sci, Zhengzhou 450002, Peoples R China.
[Bennetzen, Jeffrey L.] Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China.
[Bennetzen, Jeffrey L.] Univ Georgia, Dept Genet, Athens, GA 30602 USA.
[Vogel, John P.] Joint Genome Inst, Dept Energy, Walnut Creek, CA 94598 USA.
RP Brutnell, TP (reprint author), Donald Danforth Plant Sci Ctr, St Louis, MO 63132 USA.
EM tbrutnell@danforthcenter.org; maize@uga.edu; jpvogel@lbl.gov
RI Brutnell, Thomas/M-2840-2013;
OI Brutnell, Thomas/0000-0002-3581-8211; Vogel, John/0000-0003-1786-2689
NR 130
TC 21
Z9 22
U1 8
U2 38
PU ANNUAL REVIEWS
PI PALO ALTO
PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA
SN 1543-5008
BN 978-0-8243-0666-3
J9 ANNU REV PLANT BIOL
JI Annu. Rev. Plant Biol.
PY 2015
VL 66
BP 465
EP 485
DI 10.1146/annurev-arplant-042811-105528
PG 21
WC Plant Sciences
SC Plant Sciences
GA BC6AS
UT WOS:000353711400019
PM 25621515
ER
PT J
AU Atkinson, DB
Radney, JG
Lum, J
Kolesar, KR
Cziczo, DJ
Pekour, MS
Zhang, Q
Setyan, A
Zelenyuk, A
Cappa, CD
AF Atkinson, D. B.
Radney, J. G.
Lum, J.
Kolesar, K. R.
Cziczo, D. J.
Pekour, M. S.
Zhang, Q.
Setyan, A.
Zelenyuk, A.
Cappa, C. D.
TI Aerosol optical hygroscopicity measurements during the 2010 CARES
campaign
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID PARTICLE SOOT PHOTOMETER; SECONDARY ORGANIC AEROSOL; SEA SPRAY AEROSOL;
RELATIVE-HUMIDITY; BLACK CARBON; LIGHT-SCATTERING; BIOGENIC EMISSIONS;
HIGH-RESOLUTION; SIZE; SITE
AB Measurements of the effect of water uptake on particulate light extinction or scattering made at two locations during the 2010 Carbonaceous Aerosols and Radiative Effects Study (CARES) study around Sacramento, CA are reported. The observed influence of water uptake, characterized through the dimensionless optical hygroscopicity parameter gamma, is compared with calculations constrained by observed particle size distributions and size-dependent particle composition. A closure assessment has been carried out that allowed for determination of the average hygroscopic growth factors (GFs) at 85% relative humidity and the dimensionless hygroscopicity parameter kappa for oxygenated organic aerosol (OA) and for supermicron particles (defined here as particles with aerodynamic diameters between 1 and 2.5 microns), yielding kappa = 0.1-0.15 and 0.9-1.0, respectively. The derived range of oxygenated OA kappa values are in line with previous observations. The relatively large values for supermicron particles is consistent with substantial contributions of sea-salt-containing particles in this size range. Analysis of time-dependent variations in the supermicron particle hygroscopicity suggest that atmospheric processing, specifically chloride displacement by nitrate and the accumulation of secondary organics on supermicron particles, can lead to substantial depression of the observed GF.
C1 [Atkinson, D. B.; Radney, J. G.; Lum, J.] Portland State Univ, Dept Chem, Portland, OR 97207 USA.
[Kolesar, K. R.; Cappa, C. D.] Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA.
[Cziczo, D. J.] MIT, Earth Atmosphere & Planetary Sci, Cambridge, MA 02139 USA.
[Pekour, M. S.; Zelenyuk, A.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Zhang, Q.; Setyan, A.] Univ Calif Davis, Dept Environm Toxicol, Davis, CA 95616 USA.
RP Atkinson, DB (reprint author), Portland State Univ, Dept Chem, Portland, OR 97207 USA.
EM atkinsdb@pdx.edu; cdcappa@ucdavis.edu
RI Setyan, Ari/C-4025-2011; Zhang, Qi/F-9653-2010;
OI Setyan, Ari/0000-0002-9078-6478; Radney, James/0000-0001-7324-8769
FU US Department of Energy (DOE) Office of Biological and Environmental
Research (OBER), Atmospheric System Research (ASR) Program
[DE-SC0008937, DE-FG02-11ER65293]; ASR; EMSL (Environmental Molecular
Sciences Laboratory) - DOE-OBER; Atmospheric Radiation Measurement (ARM)
Program of the DOE-OBER
FX D. B. Atkinson, J. G. Radney, J. Lum, K. R. Kolesar, C. D. Cappa and Q.
Zhang were supported by of the US Department of Energy (DOE) Office of
Biological and Environmental Research (OBER), Atmospheric System
Research (ASR) Program through Grants No. DE-SC0008937 and
DE-FG02-11ER65293. A. Zelenyuk and M. S. Pekour were supported by ASR
and the EMSL (Environmental Molecular Sciences Laboratory), a national
scientific user facility sponsored by the DOE-OBER and located at
Pacific Northwest National Laboratory. The authors thank R. Subramanian
for use of the SP2 data. Additional funding for data collection at the
ground sites (including of the SP2 data) was provided by the Atmospheric
Radiation Measurement (ARM) Program of the DOE-OBER.
NR 51
TC 4
Z9 4
U1 3
U2 29
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2015
VL 15
IS 8
BP 4045
EP 4061
DI 10.5194/acp-15-4045-2015
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CH2EH
UT WOS:000353838000005
ER
PT J
AU Kim, S
Kim, SY
Lee, M
Shim, H
Wolfe, GM
Guenther, AB
He, A
Hong, Y
Han, J
AF Kim, S.
Kim, S. -Y.
Lee, M.
Shim, H.
Wolfe, G. M.
Guenther, A. B.
He, A.
Hong, Y.
Han, J.
TI Impact of isoprene and HONO chemistry on ozone and OVOC formation in a
semirural South Korean forest
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID VOLATILE ORGANIC-COMPOUNDS; PEARL RIVER DELTA; RADICAL PROPAGATION
EFFICIENCY; OH REACTIVITY MEASUREMENTS; REACTION MASS-SPECTROMETRY;
METHYL VINYL KETONE; NITROUS-ACID; FIELD CAMPAIGN; AIR-QUALITY;
TROPOSPHERIC DEGRADATION
AB Rapid urbanization and economic development in East Asia in past decades has led to photochemical air pollution problems such as excess photochemical ozone and aerosol formation. Asian megacities such as Seoul, Tokyo, Shanghai, Guangzhou, and Beijing are surrounded by densely forested areas, and recent research has consistently demonstrated the importance of biogenic volatile organic compounds (VOCs) from vegetation in determining oxidation capacity in the suburban Asian megacity regions. Uncertainties in constraining tropospheric oxidation capacity, dominated by hydroxyl radical, undermine our ability to assess regional photochemical air pollution problems. We present an observational data set of CO, NOx, SO2, ozone, HONO, and VOCs (anthropogenic and biogenic) from Taehwa research forest (TRF) near the Seoul metropolitan area in early June 2012. The data show that TRF is influenced both by aged pollution and fresh biogenic volatile organic compound emissions. With the data set, we diagnose HOx (OH, HO2, and RO2) distributions calculated using the University of Washington chemical box model (UWCM v2.1) with near-explicit VOC oxidation mechanisms from MCM v3.2 (Master Chemical Mechanism). Uncertainty from unconstrained HONO sources and radical recycling processes highlighted in recent studies is examined using multiple model simulations with different model constraints. The results suggest that (1) different model simulation scenarios cause systematic differences in HOx distributions, especially OH levels (up to 2.5 times), and (2) radical destruction (HO2 + HO2 or HO2 + RO2) could be more efficient than radical recycling (RO2 + NO), especially in the afternoon. Implications of the uncertainties in radical chemistry are discussed with respect to ozone-VOC-NOx sensitivity and VOC oxidation product formation rates. Overall, the NOx limited regime is assessed except for the morning hours (8 a.m. to 12 p.m. local standard time), but the degree of sensitivity can significantly vary depending on the model scenarios. The model results also suggest that RO2 levels are positively correlated with oxygenated VOCs (OVOCs) production that is not routinely constrained by observations. These unconstrained OVOCs can cause higher-than-expected OH loss rates (missing OH reactivity) and secondary organic aerosol formation. The series of modeling experiments constrained by observations strongly urge observational constraint of the radical pool to enable precise understanding of regional photochemical pollution problems in the East Asian megacity region.
C1 [Kim, S.; He, A.] Univ Calif Irvine, Sch Phys Sci, Dept Earth Syst Sci, Irvine, CA 92697 USA.
[Kim, S. -Y.; Hong, Y.; Han, J.] Natl Inst Environm Res, Inchon, South Korea.
[Lee, M.; Shim, H.] Korean Univ, Dept Earth & Environm Sci, Seoul, South Korea.
[Wolfe, G. M.] Univ Maryland, Joint Ctr Earth Syst Technol, Baltimore, MD 21201 USA.
[Wolfe, G. M.] NASA, Goddard Space Flight Ctr, Atmospher Chem & Dynam Lab, Greenbelt, MD 20771 USA.
[Guenther, A. B.] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA.
RP Kim, S (reprint author), Univ Calif Irvine, Sch Phys Sci, Dept Earth Syst Sci, Irvine, CA 92697 USA.
EM saewungk@uci.edu
RI Kim, Saewung/E-4089-2012; Wolfe, Glenn/D-5289-2011
FU National Institute of Environmental Research of South Korea
FX This research is financially supported by the National Institute of
Environmental Research of South Korea. The authors appreciate logistical
support from the research and supporting staff at Taehwa research forest
operated by Seoul National University.
NR 91
TC 5
Z9 5
U1 22
U2 74
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2015
VL 15
IS 8
BP 4357
EP 4371
DI 10.5194/acp-15-4357-2015
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CH2EH
UT WOS:000353838000023
ER
PT S
AU DeVore, MS
Stich, DG
Keller, AM
Ghosh, Y
Goodwin, PM
Phipps, ME
Stewart, MH
Cleyrat, C
Wilson, BS
Lidke, DS
Hollingsworth, JA
Werner, JH
AF DeVore, Matthew S.
Stich, Dominik G.
Keller, Aaron M.
Ghosh, Yagnaseni
Goodwin, Peter M.
Phipps, Mary E.
Stewart, Michael H.
Cleyrat, Cedric
Wilson, Bridget S.
Lidke, Diane S.
Hollingsworth, Jennifer A.
Werner, James H.
BE Parak, WJ
Osinski, M
Liang, XJ
TI Three dimensional time-gated tracking of non-blinking quantum dots in
live cells
SO COLLOIDAL NANOPARTICLES FOR BIOMEDICAL APPLICATIONS X
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Colloidal Nanoparticles for Biomedical Applications X
CY FEB 07-09, 2015
CL San Francisco, CA
SP SPIE, Ocean Opt Inc
DE Single particle tracking; time-gating; quantum dot; microscopy
ID SINGLE-PARTICLE TRACKING; SHELL-THICKNESS; 3 DIMENSIONS; NANOCRYSTALS;
FLUORESCENCE; DYNAMICS; PHOTOLUMINESCENCE; SUPPRESSION; PRECISION;
MEMBRANE
AB Single particle tracking has provided a wealth of information about biophysical processes such as motor protein transport and diffusion in cell membranes. However, motion out of the plane of the microscope or blinking of the fluorescent probe used as a label generally limits observation times to several seconds. Here, we overcome these limitations by using novel non-blinking quantum dots as probes and employing a custom 3D tracking microscope to actively follow motion in three dimensions (3D) in live cells. Signal-to-noise is improved in the cellular milieu through the use of pulsed excitation and time-gated detection.
C1 [DeVore, Matthew S.; Stich, Dominik G.; Keller, Aaron M.; Ghosh, Yagnaseni; Goodwin, Peter M.; Phipps, Mary E.; Hollingsworth, Jennifer A.; Werner, James H.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
[Stewart, Michael H.] US Naval Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Cleyrat, Cedric; Wilson, Bridget S.; Lidke, Diane S.] Univ New Mexico, Dept Pathol, Albuquerque, NM 87131 USA.
[Cleyrat, Cedric; Wilson, Bridget S.; Lidke, Diane S.] Univ New Mexico, Canc Res & Treatment Ctr, Albuquerque, NM 87131 USA.
RP DeVore, MS (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, POB 1663, Los Alamos, NM 87545 USA.
RI Cleyrat, Cedric/F-1824-2016
OI Cleyrat, Cedric/0000-0002-1928-6497
NR 54
TC 1
Z9 1
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-428-8
J9 PROC SPIE
PY 2015
VL 9338
AR 933812
DI 10.1117/12.2082943
PG 15
WC Engineering, Biomedical; Nanoscience & Nanotechnology; Optics
SC Engineering; Science & Technology - Other Topics; Optics
GA BC6NI
UT WOS:000354173600014
ER
PT S
AU Ji, X
Makarov, NS
Wang, WT
Palui, G
Robel, I
Mattoussi, H
AF Ji, Xin
Makarov, Nikolay S.
Wang, Wentao
Palui, Goutam
Robel, Istvan
Mattoussi, Hedi
BE Parak, WJ
Osinski, M
Liang, XJ
TI Understanding the Redox Coupling between Quantum Dots and the
Neurotransmitter Dopamine in Hybrid Self-assemblies
SO COLLOIDAL NANOPARTICLES FOR BIOMEDICAL APPLICATIONS X
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Colloidal Nanoparticles for Biomedical Applications X
CY FEB 07-09, 2015
CL San Francisco, CA
SP SPIE, Ocean Opt Inc
DE Quantum Dot; Dopamine; Charge Transfer; Electron and Hole Carriers;
Transient Absorption
ID MULTIFUNCTIONAL LIGANDS; BIOLOGICAL-SYSTEMS; IN-VITRO; NANOCRYSTALS;
SEMICONDUCTOR; CDSE; PH; STABILITY; QDS
AB Interactions between luminescent fluorophores and redox active molecules often involve complex charge transfer processes, and have great ramifications in biology. Dopamine is a redox active neurotransmitter involved in a range of brain activities. We used steady-state and time-resolved fluorescence along with transient absorption bleach measurements, to probe the effects of changing the QD size and valence on the rate of photoluminescence quenching in QD-dopamine conjugates, when the pH of the medium was varied. In particular, we measured substantially larger quenching efficiencies, combined with more pronounced shortening in the PL lifetime decay when smaller size QDs and/or alkaline pH were used. Moreover, we found that changes in the nanocrystal size alter both the electron and hole relaxation of photoexcited QDs but with very different extents. For instance, a more pronounced change in the hole relaxation was recorded in alkaline buffers and for green-emitting QDs compared to their red-emitting counterparts. We attributed these results to the more favorable electron transfer pathway from the reduced form of the complex to the valence band of the QD. This process benefits from the combination of lower oxidation potential and larger energy mismatch in alkaline buffers and for green-emitting QDs. In comparison, the effects on the rate of electron transfer from excited QDs to dopamine are less affected by QD size. These findings provide new insights into the mechanisms that drive charge transfer interactions and the ensuing quenching of QD emission in such assemblies.
C1 [Ji, Xin; Wang, Wentao; Palui, Goutam; Mattoussi, Hedi] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA.
[Makarov, Nikolay S.; Robel, Istvan] Los Alamos Natl Lab, Ctr Adv Solar Photophys, Div Chem, Los Alamos, NM 87545 USA.
RP Ji, X (reprint author), Florida State Univ, Dept Chem & Biochem, 95 Chieftan Way, Tallahassee, FL 32306 USA.
NR 23
TC 0
Z9 0
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-428-8
J9 PROC SPIE
PY 2015
VL 9338
AR 93380N
DI 10.1117/12.2077876
PG 8
WC Engineering, Biomedical; Nanoscience & Nanotechnology; Optics
SC Engineering; Science & Technology - Other Topics; Optics
GA BC6NI
UT WOS:000354173600008
ER
PT J
AU Baca, SG
Speldrich, M
van Leusen, J
Ellern, A
Kogerler, P
AF Baca, Svetlana G.
Speldrich, Manfred
van Leusen, Jan
Ellern, Arkady
Koegerler, Paul
TI Undecametallic and hexadecametallic ferric oxo-hydroxo/ethoxo pivalate
clusters
SO DALTON TRANSACTIONS
LA English
DT Article
ID CORROSION-INHIBITOR; IRON(III); IRON; LIGANDS; COMPLEXES; AGGREGATE;
CORE; MODE
AB Synthesis strategies for highly condensed {Fe-11} and {Fe-16} pivalate clusters have been developed based on archetypal geometrically frustrated triangular {Fe-3(mu(3)-O)} motifs that are interlinked via oxo, hydroxo, ethoxo, and carboxylate groups.
C1 [Baca, Svetlana G.; Speldrich, Manfred; van Leusen, Jan; Koegerler, Paul] Rhein Westfal TH Aachen, Inst Inorgan Chem, Aachen, Germany.
[Baca, Svetlana G.] ASM, Inst Appl Phys, Kishinev, Moldova.
[Ellern, Arkady] Iowa State Univ, Ames Lab, Ames, IA USA.
[Koegerler, Paul] Res Ctr Julich, Peter Grunberg Inst 6, Julich, Germany.
RP Baca, SG (reprint author), Rhein Westfal TH Aachen, Inst Inorgan Chem, Aachen, Germany.
EM sbaca_md@yahoo.com; paul.koegerler@ac.rwth-aachen.de
RI Speldrich, Manfred/P-3615-2016; Kogerler, Paul/H-5866-2013;
OI Speldrich, Manfred/0000-0002-8626-6410; Kogerler,
Paul/0000-0001-7831-3953; Baca, Svetlana/0000-0002-2121-2091
FU EU (POLYMAG, IIF contract) [252984]; EU (ERC Starting Grant
MOLSPINTRON); EU (COST Action) [COST-STSM-CM1203-19097, CM1203]
FX Financial support from the EU (POLYMAG, IIF contract no. 252984; ERC
Starting Grant MOLSPINTRON; COST Action CM1203, COST-STSM-CM1203-19097)
is acknowledged.
NR 19
TC 3
Z9 3
U1 1
U2 5
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 17
BP 7777
EP 7780
DI 10.1039/c5dt00665a
PG 4
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CG9NO
UT WOS:000353642800011
PM 25847453
ER
PT J
AU Essehli, R
Belharouak, I
Ben Yahia, H
Maher, K
Abouimrane, A
Orayech, B
Calder, S
Zhou, XL
Zhou, Z
Sun, YK
AF Essehli, R.
Belharouak, I.
Ben Yahia, H.
Maher, K.
Abouimrane, A.
Orayech, B.
Calder, S.
Zhou, X. L.
Zhou, Z.
Sun, Y-K.
TI Alluaudite Na2Co2Fe(PO4)(3) as an electroactive material for sodium ion
batteries
SO DALTON TRANSACTIONS
LA English
DT Article
ID BOND-VALENCE PARAMETERS; LITHIUM BATTERIES; ELECTRODE MATERIALS; ANODE
MATERIAL; CAPACITY; CATHODE; STABILITY; PHOSPHATE; NA2FEPO4F; PHASES
AB The electroactive orthophosphate Na2Co2Fe(PO4)(3) was synthesized using a solid state reaction. Its crystal structure was solved using the combination of powder X-ray-and neutron-diffraction data. This material crystallizes according to the alluaudite structure (S.G. C2/c). The structure consists of edge sharing [MO6] octahedra (M = Fe, Co) resulting in chains parallel to [-101]. These chains are linked together via the [PO4] tetrahedra to form two distinct tunnels in which sodium cations are located. The electrochemical properties of Na2Co2Fe(PO4)(3) were evaluated by galvanostatic charge-discharge cycling. During the first discharge to 0.03 V, Na2Co2Fe(PO4)(3) delivers a specific capacity of 604 mA h g(-1). This capacity is equivalent to the reaction of more than seven sodium ions per formula unit. Hence, this is a strong indication of a conversion-type reaction with the formation of metallic Fe and Co. The subsequent charge and discharge involved the reaction of fewer Na ions as expected for a conversion reaction. When discharged to 0.9 V, the material intercalated only one Na+-ion leading to the formation of a new phase Na3Co2Fe(PO4)(3). This phase could then be cycled reversibly with an average voltage of 3.6 V vs. Na+/Na and a capacity of 110 mA h g(-1). This result is in good agreement with the theoretical capacity expected from the extraction/insertion of two sodium atoms in Na2Co2Fe(PO4)(3).
C1 [Essehli, R.; Belharouak, I.; Ben Yahia, H.; Maher, K.; Abouimrane, A.] Qatar Fdn, Qatar Environm & Energy Res Inst, Doha, Qatar.
[Orayech, B.] Univ Basque Country, Dept Fis Mat Condensada, E-48080 Bilbao, Spain.
[Calder, S.] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA.
[Zhou, X. L.; Zhou, Z.] Nankai Univ, Inst New Energy Mat Chem, Tianjin 300071, Peoples R China.
[Sun, Y-K.] Hanyang Univ, Dept Energy Engn, Seoul 133791, South Korea.
RP Essehli, R (reprint author), Qatar Fdn, Qatar Environm & Energy Res Inst, POB 5825, Doha, Qatar.
EM ressehli@qf.org.qa; ibelharouak@qf.org.qa; Hyahia@qf.org.qa
RI Orayech, Brahim/P-4728-2014; Zhou, Zhen/C-4517-2008;
OI Orayech, Brahim/0000-0003-3707-7645; Zhou, Zhen/0000-0003-3232-9903;
Essehli, Rachid/0000-0002-1160-9159
FU Scientific User Facilities Division, Office of Basic Energy Sciences,
U.S. Department of Energy
FX Neutron diffraction was conducted at ORNL's High Flux Isotope Reactor
sponsored by the Scientific User Facilities Division, Office of Basic
Energy Sciences, U.S. Department of Energy. The authors thanks Prof. B.
El Bali for the fruitful discussion, and Dr. H. Cao for helping in
collecting the NPD data.
NR 30
TC 5
Z9 5
U1 5
U2 56
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 17
BP 7881
EP 7886
DI 10.1039/c5dt00971e
PG 6
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CG9NO
UT WOS:000353642800024
PM 25824572
ER
PT J
AU Bryantsev, VS
Hay, BP
AF Bryantsev, Vyacheslav S.
Hay, Benjamin P.
TI Theoretical prediction of Am(III)/Eu(III) selectivity to aid the design
of actinide-lanthanide separation agents
SO DALTON TRANSACTIONS
LA English
DT Article
ID ENERGY-ADJUSTED PSEUDOPOTENTIALS; TRIVALENT ACTINIDES; DITHIOPHOSPHINIC
ACIDS; NITROGEN LIGANDS; AQUO IONS; COMPLEXATION; EXTRACTION; DENSITY;
ELEMENTS; APPROXIMATION
AB Selective extraction of minor actinides from lanthanides is a critical step in the reduction of radiotoxicity of spent nuclear fuels. However, the design of suitable ligands for separating chemically similar 4f- and 5f-block trivalent metal ions poses a significant challenge. First-principles calculations should play an important role in the design of new separation agents, but their ability to predict metal ion selectivity has not been systematically evaluated. In this work, we examine the ability of several density functional theory methods to predict selectivity of Am(III) and Eu(III) with oxygen, mixed oxygen-nitrogen, and sulfur donor ligands. The results establish a computational method capable of predicting the correct order of selectivities obtained from liquid-liquid extraction and aqueous phase complexation studies. To allow reasonably accurate predictions, it was critical to employ sufficiently flexible basis sets and provide proper account of solvation effects. The approach is utilized to estimate the selectivity of novel amide-functionalized diazine and 1,2,3-triazole ligands.
C1 [Bryantsev, Vyacheslav S.; Hay, Benjamin P.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Bryantsev, VS (reprint author), Oak Ridge Natl Lab, Div Chem Sci, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM bryantsevv@ornl.gov
RI Bryantsev, Vyacheslav/M-5111-2016
OI Bryantsev, Vyacheslav/0000-0002-6501-6594
FU Fuel Cycle Research and Development Program, Office of Nuclear Energy,
U.S. Department of Energy; Office of Science of the U.S. Department of
Energy [DE-AC02-05CH11231]; National Energy Research Scientific
Computing Center
FX We are thankful to Dr Wei-Qun Shi (Institute of High Energy Physics,
Beijing, China) for providing us with the optimized coordinated of
M(H2O)n(NO3)3 (n = 2-4)
clusters. This research was sponsored by the Fuel Cycle Research and
Development Program, Office of Nuclear Energy, U.S. Department of Energy
and used resources of the National Energy Research Scientific Computing
Center, a DOE Office of Science User Facility supported by the Office of
Science of the U.S. Department of Energy under contract no.
DE-AC02-05CH11231.
NR 55
TC 4
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U1 10
U2 46
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 17
BP 7935
EP 7942
DI 10.1039/c4dt03275f
PG 8
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CG9NO
UT WOS:000353642800031
PM 25824656
ER
PT J
AU Yang, YQ
Liu, J
Yang, L
Li, K
Zhang, HB
Luo, SZ
Rao, LF
AF Yang, Yanqiu
Liu, Jun
Yang, Liang
Li, Kun
Zhang, Huabei
Luo, Shunzhong
Rao, Linfeng
TI Probing the difference in covalence by enthalpy measurements: a new
heterocyclic N-donor ligand for actinide/lanthanide separation
SO DALTON TRANSACTIONS
LA English
DT Article
ID EQUILIBRIUM-CONSTANTS; SELECTIVE EXTRACTION; CURIUM COMPLEXATION;
TRIVALENT ACTINIDES; LANTHANIDES; SOLVATION; CM(III); AMERICIUM(III);
SPECTROSCOPY; SPECIATION
AB Complexation of Am(III), Nd(III), and Eu(III) with a new heterocyclic nitrogen-donor ligand, 2,9-di(quinazolin-2-yl)-1,10-phenanthroline (denoted as BQPhen in this paper), was studied by thermodynamic measurements and theoretical computations. The stability constants of two successive complexes in dimethylformamide, ML3+ and ML23+ where M stands for Nd, Eu, or Am while L stands for the BQPhen ligand, were determined by absorption spectrophotometry. The enthalpy of complexation was determined by microcalorimetry. Results show that BQPhen forms ten times stronger complexes with Am(III) than Eu(III) or Nd(III) under identical conditions, suggesting that BQPhen could be used as an efficient extractant for the separations of trivalent actinides from lanthanides. The higher binding strength of BQPhen towards Am(III) than Nd(III) or Eu(III) is mainly due to the more favourable enthalpy of complexation for Am(III)/BQPhen complexes, implying a higher degree of covalence in the Am(III)/BQPhen complexes than the lanthanide(III)/BQPhen complexes. The thermodynamic trend was corroborated with computational results and validated by solvent extraction experiments that demonstrated BQPhen preferably extracted Am(III) more than Eu(III), with a separation factor of about 10. Discussions have been made to compare BQPhen with other phenanthroline derivatives such as CyMe4-BTPhen, a bis-triazine-phenanthroline derivative that was reported in the literature. Data suggest that, under identical conditions, BQPhen would form stronger complexes with Am(III), Eu(III), and Nd(III) than CyMe4-BTPhen.
C1 [Yang, Yanqiu; Liu, Jun; Yang, Liang; Luo, Shunzhong] CAEP, Inst Nucl Phys & Chem, Mianyang 621900, Sichuan, Peoples R China.
[Rao, Linfeng] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Li, Kun] Sichuan Univ, Coll Chem, Chengdu 610065, Sichuan, Peoples R China.
[Zhang, Huabei] Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China.
RP Luo, SZ (reprint author), CAEP, Inst Nucl Phys & Chem, 64 Mianshan Rd, Mianyang 621900, Sichuan, Peoples R China.
EM luoshzh@caep.ac.cn; lrao@lbl.gov
FU Office of Science, Office of Basic Energy Science of the U.S. Department
of Energy (DOE) at LBNL [DE-AC02-05CH11231]; National Science Foundation
of China [91026022]
FX The spectrophotometric and calorimetric experiments were conducted at
Lawrence Berkeley National Laboratory (LBNL) and were supported by the
Director, Office of Science, Office of Basic Energy Science of the U.S.
Department of Energy (DOE), under contract No. DE-AC02-05CH11231 at
LBNL. Y. Yang thanks for the support from the National Science
Foundation of China (grant no. 91026022). The organic synthesis of the
ligand and the DFT computation were conducted, respectively, at Sichuan
University and Beijing Normal University.
NR 52
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U1 12
U2 27
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 19
BP 8959
EP 8970
DI 10.1039/c5dt00679a
PG 12
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CH7GH
UT WOS:000354203400027
PM 25875899
ER
PT J
AU Dong, YK
Eckert, B
Wang, H
Zeng, XY
Tritt, TM
Nolas, GS
AF Dong, Yongkwan
Eckert, Brian
Wang, Hsin
Zeng, Xiaoyu
Tritt, Terry M.
Nolas, George S.
TI Synthesis, crystal structure, and transport properties of
Cu2.2Zn0.8SnSe4-xTex (0.1 <= x <= 0.4)
SO DALTON TRANSACTIONS
LA English
DT Article
ID THERMOELECTRIC PROPERTIES; SOLID-SOLUTIONS; NANOCRYSTALS; CU2ZNSNSE4;
CU2CDSNSE4; DISORDER
AB Quaternary chalcogenides, particular compounds with the stannite structure-type, are of interest for thermoelectrics applications however tellurium-containing compositions have not been extensively investigated. We report on the synthesis and high temperature thermoelectric properties of p-type stannites Cu2.2Zn0.8SnSe4-xTex (x = 0.1, 0.2, 0.3, and 0.4). The compositions for each specimen were confirmed with a combination of Rietveld refinement and elemental analysis. Hall measurements indicate that holes are the dominant charge carriers in these materials. The electrical resistivity shows little temperature dependence up to 500 K and then increases with increasing temperature. The thermal conductivity decreases with increasing temperature with no indication of increase at higher temperatures suggesting a minimal bipolar diffusion effect in the thermal conductivity although these materials possess relatively small band-gaps as compared to that of other stannite compositions. A maximum ZT value of 0.56 was obtained at 700 K for Cu2.2Zn0.8SnSe3.7Te0.3 due to a relatively high Seebeck coefficient and low thermal conductivity.
C1 [Dong, Yongkwan; Eckert, Brian; Nolas, George S.] Univ S Florida, Dept Phys, Tampa, FL 33620 USA.
[Wang, Hsin] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Zeng, Xiaoyu; Tritt, Terry M.] Clemson Univ, Dept Phys & Astron, Kinard Lab, Clemson, SC 29634 USA.
RP Nolas, GS (reprint author), Univ S Florida, Dept Phys, Tampa, FL 33620 USA.
EM gnolas@usf.edu
RI Wang, Hsin/A-1942-2013
OI Wang, Hsin/0000-0003-2426-9867
FU National Science Foundation [DMR-1400957]; KAUST Faculty Initiated
Collaboration grant; Clemson University; [DE-AC05000OR22725]
FX The work was supported by the National Science Foundation grant no.
DMR-1400957. H.W. would like to thank the support of the assistant
secretary for Energy Efficiency and Renewable Energy of the Department
of Energy and the Propulsion Materials program under the Vehicle
Technologies program. Oak Ridge National Laboratory is managed by
UT-Battelle LLC under contract DE-AC05000OR22725. The work in Dr Tritt's
laboratory acknowledges, in a small part, the support of a KAUST Faculty
Initiated Collaboration grant and also internal funding from Clemson
University.
NR 27
TC 2
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U1 2
U2 14
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1477-9226
EI 1477-9234
J9 DALTON T
JI Dalton Trans.
PY 2015
VL 44
IS 19
BP 9014
EP 9019
DI 10.1039/c5dt00910c
PG 6
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CH7GH
UT WOS:000354203400032
PM 25883041
ER
PT S
AU Lukishova, SG
Liapis, AC
Bissell, LJ
Gehring, GM
Winkler, JM
Boyd, RW
AF Lukishova, Svetlana G.
Liapis, Andreas C.
Bissell, Luke J.
Gehring, George M.
Winkler, Justin M.
Boyd, Robert W.
BE Chien, LC
Coles, HJ
Kikuchi, H
Smalyukh, II
TI Single-photon experiments with liquid crystals for quantum science and
quantum engineering applications
SO EMERGING LIQUID CRYSTAL TECHNOLOGIES X
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT SPIE Photonics West Conference on Emerging Liquid Crystal Technologies X
CY FEB 09-11, 2015
CL San Francisco, CA
SP SPIE
DE Polarized single-photon source; antibunching; nanocrystal quantum dots;
cholesteric liquid crystals; Hong-Ou-Mandel interferometer; entangled
photons; quantum mechanical barrier tunneling time; double-prism
structure; frustrated total internal reflection
ID HIGH-POWER; SELECTIVE REFLECTION; DOT FLUORESCENCE; TUNNELING TIME;
POLARIZATION; RESONANCE; OPTICS; DYE; PERFORMANCE; HOST
AB We present here our results on using liquid crystals in experiments with nonclassical light sources: (1) single-photon sources exhibiting antibunching (separation of all photons in time), which are key components for secure quantum communication systems, and (2) entangled photon source with photons exhibiting quantum interference in a Hong-Ou-Mandel interferometer. In the first part, cholesteric liquid crystal hosts were used to create definite circular polarization of antibunched photons emitted by nanocrystal quantum dots. If the photon has unknown polarization, filtering it through a polarizer to produce the desired polarization for quantum key distribution with bits based on polarization states of photons will reduce by half the efficiency of a quantum cryptography system. In the first part, we also provide our results on observation of a circular polarized microcavity resonance in nanocrystal quantum dot fluorescence in a 1-D chiral photonic bandgap cholesteric liquid crystal microcavity. In the second part of this paper with indistinguishable, time-entangled photons, we demonstrate our experimental results on simulating quantum-mechanical barrier tunnelling phenomena. A Hong-Ou-Mandel dip (quantum interference effect) is shifted when a phase change was introduced on the way of one of entangled photons in pair (one arm of the interferometer) by inserting in this arm an electrically controlled planar-aligned nematic liquid crystal layer between two prisms in the conditions close to a frustrated total internal reflection. By applying different AC-voltages to the planar-aligned nematic layer and changing its refractive index, we can obtain various conditions for incident photon propagation - from total reflection to total transmission. Measuring changes of tunnelling times of photon through this structure with femtosecond resolution permitted us to answer some unresolved questions in quantum-mechanical barrier tunnelling phenomena.
C1 [Lukishova, Svetlana G.; Liapis, Andreas C.; Gehring, George M.; Boyd, Robert W.] Univ Rochester, Inst Opt, Rochester, NY 14627 USA.
[Lukishova, Svetlana G.] Natl Res Nucl Univ MEPhI, Moscow, Russia.
[Liapis, Andreas C.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Bissell, Luke J.] Air Force Res Lab, Wright Patterson Air Force Base, Wright Patterson AFB, OH USA.
[Winkler, Justin M.; Boyd, Robert W.] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA.
[Boyd, Robert W.] Univ Ottawa, Dept Phys, Ottawa, ON K1N 6N5, Canada.
[Boyd, Robert W.] Univ Ottawa, Sch Elect Engn & Comp Sci, Ottawa, ON, Canada.
RP Lukishova, SG (reprint author), Univ Rochester, Inst Opt, 601 Elmwood Ave, Rochester, NY 14627 USA.
EM sluk@lle.rochester.edu
OI Liapis, Andreas/0000-0001-6810-3354
NR 72
TC 0
Z9 0
U1 2
U2 8
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-474-5
J9 PROC SPIE
PY 2015
VL 9384
AR 93840A
DI 10.1117/12.2184372
PG 16
WC Crystallography; Engineering, Electrical & Electronic; Optics; Physics,
Applied
SC Crystallography; Engineering; Optics; Physics
GA BC6FB
UT WOS:000353888500003
ER
PT S
AU Anderson, BM
Venus, G
Ott, D
Divliansky, I
Dawson, JW
Drachenberg, DR
Messerly, MJ
Pax, PH
Tassano, JB
Glebov, LB
AF Anderson, B. M.
Venus, G.
Ott, D.
Divliansky, I.
Dawson, J. W.
Drachenberg, D. R.
Messerly, M. J.
Pax, P. H.
Tassano, J. B.
Glebov, L. B.
BE Shaw, LB
Ballato, J
TI Brightness enhancement of a multi-mode ribbon fiber using transmitting
Bragg gratings
SO FIBER LASERS XII: TECHNOLOGY, SYSTEMS, AND APPLICATIONS
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Fiber Lasers XII - Technology, Systems, and Applications
CY FEB 09-12, 2015
CL San Francisco, CA
SP SPIE, NKT Photon A S, PolarOnyx Inc
DE Volume Bragg grating; transverse mode; resonator; ribbon fiber; PTR
glass
ID TRANSVERSE-MODE COMPETITION; LASERS; POWER; AMPLIFIERS; OPERATION; BEAM
AB Increasing the dimensions of a waveguide provides the simplest means of reducing detrimental nonlinear effects, but such systems are inherently multi-mode, reducing the brightness of the system. Furthermore, using rectangular dimensions allows for improved heat extraction, as well as uniform temperature profile within the core. We propose a method of using the angular acceptance of a transmitting Bragg grating (TBG) to filter the fundamental mode of a fiber laser resonator, and as a means to increase the brightness of multi-mode fiber laser. Numerical modeling is used to calculate the diffraction losses needed to suppress the higher order modes in a laser system with saturable gain. The model is tested by constructing an external cavity resonator using an ytterbium doped ribbon fiber with core dimensions of 107.8 mu m by 8.3 mu m as the active medium. We show that the TBG increases the beam quality of the system from M-2 = 11.3 to M-2 = 1.45, while reducing the slope efficiency from 76% to 53%, overall increasing the brightness by 5.1 times.
C1 [Anderson, B. M.; Venus, G.; Ott, D.; Divliansky, I.; Glebov, L. B.] Univ Cent Florida, Coll Opt & Photon, CREOL, Orlando, FL 32816 USA.
[Dawson, J. W.; Drachenberg, D. R.; Messerly, M. J.; Pax, P. H.; Tassano, J. B.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Anderson, BM (reprint author), Univ Cent Florida, Coll Opt & Photon, CREOL, POB 162700, Orlando, FL 32816 USA.
NR 19
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-434-9
J9 PROC SPIE
PY 2015
VL 9344
AR 93441W
DI 10.1117/12.2079358
PG 11
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6EZ
UT WOS:000353887400047
ER
PT J
AU Mernild, SH
Malmros, JK
Yde, JC
De Villiers, S
Knudsen, NT
Wilson, R
AF Mernild, Sebastian H.
Malmros, Jeppe K.
Yde, Jacob C.
De Villiers, Simon
Knudsen, Niels Tvis
Wilson, Ryan
TI Glacier changes in the circumpolar Arctic and sub-Arctic, mid-1980s to
late-2000s/2011
SO GEOGRAFISK TIDSSKRIFT-DANISH JOURNAL OF GEOGRAPHY
LA English
DT Article
DE area change; Arctic; glacier and ice caps; Landsat; length change;
remote sensing
ID SURFACE MASS-BALANCE; SEA-LEVEL RISE; SOUTHEAST GREENLAND; MITTIVAKKAT
GLETSCHER; NOVAYA-ZEMLYA; INVENTORY; CANADA; VOLUME; ISLAND; AREA
AB A new inventory record of satellite-derived area, length, elevation range and surface slope changes from the mid-1980s to late 2000s/2011 for 317 land-terminating glaciers and ice caps (GIC) is presented. The investigated GIC are located in 12 geographic regions throughout the circumpolar Arctic and sub-Arctic. This geographic subdivision allows us to examine regional variations in recent glacier changes. The method is based on a semi-automated classification approach which extracts GIC extent from satellite scenes. Most of the observed GIC show a reduction in area, length, elevation range and slope. On regional scale, the observed GIC changed in area between -4 +/- 3% (Nuuk, West Greenland; 1987-2003) and -40 +/- 4% (Talkeetna, southern Alaska; 1987-2011), equal to shrinking rates between -0.2% yr(-1) and -1.7% yr(-1). The regional change in length was between -36 +/- 13 m (southern British Columbia; 1985-2011) and -481 +/- 85 m (southern Ellesmere Island; 1988-2009), equal to -1 +/- 0.5 m yr(-1) and -23 +/- 4 m yr(-1). Regional GIC changes can be illustrated by power-law scaling relationships between GIC area and length, elevation range, and surface slope. Here, we find regional variability in scaling parameters in both time and space, which should be considered when estimating global assessments of GIC conditions and changes over time.
C1 [Mernild, Sebastian H.; Malmros, Jeppe K.; Wilson, Ryan] Ctr Sci Studies, Glaciol & Climate Change Lab, Valdivia, Chile.
[Mernild, Sebastian H.] Los Alamos Natl Lab, Climate Ocean & Sea Ice Modeling Grp, Computat Phys & Methods, Los Alamos, NM USA.
[Malmros, Jeppe K.] Univ Copenhagen, Dept Geosci & Nat Resource Management, Copenhagen, Denmark.
[Yde, Jacob C.; De Villiers, Simon] Sogn & Fjordane Univ Coll, Fac Engn & Sci, Sogndal, Norway.
[Knudsen, Niels Tvis] Aarhus Univ, Dept Geosci, Aarhus, Denmark.
RP Mernild, SH (reprint author), Ctr Sci Studies, Glaciol & Climate Change Lab, Valdivia, Chile.
EM mernild@cecs.cl
OI Yde, Jacob Clement/0000-0002-6211-2601
FU Earth System Modelling program within the U.S. Department of Energy's
Office of Science; Los Alamos National Laboratory (LANL); European
Community [262693]; National Nuclear Security Administration of the U.S.
Department of Energy [DE-AC52-06NA25396]
FX We extend a very special thanks to the anonymous reviewers for their
insightful critique of this article. This work was supported partly by
the Earth System Modelling program within the U.S. Department of
Energy's Office of Science, by Los Alamos National Laboratory (LANL),
and by the European Community's Seventh Framework Programme under grant
agreement No. 262693. LANL is operated under the auspices of the
National Nuclear Security Administration of the U.S. Department of
Energy under Contract No. DE-AC52-06NA25396). All satellite data were
acquired through the USGS Earth Explorer internet portal
(http://earthexplorer.usgs.gov/).
NR 68
TC 0
Z9 0
U1 2
U2 10
PU ROYAL DANISH GEOGRAPHICAL SOC
PI COPENHAGEN K
PA OSTER VOLDGADE 10, COPENHAGEN K, DK 1350, DENMARK
SN 0016-7223
EI 1903-2471
J9 GEOGR TIDSSKR-DEN
JI Geogr. Tidsskr.
PY 2015
VL 115
IS 1
BP 39
EP 56
DI 10.1080/00167223.2015.1026917
PG 18
WC Environmental Studies; Geography
SC Environmental Sciences & Ecology; Geography
GA CH4ZE
UT WOS:000354042500004
ER
PT J
AU Hartin, CA
Patel, P
Schwarber, A
Link, RP
Bond-Lamberty, BP
AF Hartin, C. A.
Patel, P.
Schwarber, A.
Link, R. P.
Bond-Lamberty, B. P.
TI A simple object-oriented and open-source model for scientific and policy
analyses of the global climate system - Hector v1.0
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID GREENHOUSE-GAS CONCENTRATIONS; CARBON-CYCLE MODELS; SEA-LEVEL RISE;
ATMOSPHERIC CO2; POLAR AMPLIFICATION; LAND-USE; OCEAN; STABILIZATION;
TEMPERATURE; SENSITIVITY
AB Simple climate models play an integral role in the policy and scientific communities. They are used for climate mitigation scenarios within integrated assessment models, complex climate model emulation, and uncertainty analyses. Here we describe Hector v1.0, an open source, object-oriented, simple global climate carbon-cycle model. This model runs essentially instantaneously while still representing the most critical global-scale earth system processes. Hector has a three-part main carbon cycle: a one-pool atmosphere, land, and ocean. The model's terrestrial carbon cycle includes primary production and respiration fluxes, accommodating arbitrary geographic divisions into, e.g., ecological biomes or political units. Hector actively solves the inorganic carbon system in the surface ocean, directly calculating air-sea fluxes of carbon and ocean pH. Hector reproduces the global historical trends of atmospheric [CO2], radiative forcing, and surface temperatures. The model simulates all four Representative Concentration Pathways (RCPs) with equivalent rates of change of key variables over time compared to current observations, MAGICC (a well-known simple climate model), and models from the 5th Coupled Model Inter-comparison Project. Hector's flexibility, open-source nature, and modular design will facilitate a broad range of research in various areas.
C1 [Hartin, C. A.; Patel, P.; Link, R. P.; Bond-Lamberty, B. P.] Univ Maryland, Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
[Schwarber, A.] Univ Maryland, College Pk, MD 20742 USA.
RP Hartin, CA (reprint author), Univ Maryland, Pacific NW Natl Lab, Joint Global Change Res Inst, 5825 Univ Res Court, College Pk, MD 20740 USA.
EM corinne.hartin@pnnl.gov
RI Bond-Lamberty, Ben/C-6058-2008
OI Bond-Lamberty, Ben/0000-0001-9525-4633
FU US Department of Energy, Office of Science, Integrated Assessment
Research Program; DOE [DE-AC05-76RL01830]
FX This research is based on work supported by the US Department of Energy,
Office of Science, Integrated Assessment Research Program. The Pacific
Northwest National Laboratory is operated for DOE by Battelle Memorial
Institute under contract DE-AC05-76RL01830.
NR 84
TC 1
Z9 1
U1 0
U2 7
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2015
VL 8
IS 4
BP 939
EP 955
DI 10.5194/gmd-8-939-2015
PG 17
WC Geosciences, Multidisciplinary
SC Geology
GA CH2FT
UT WOS:000353841800001
ER
PT J
AU Bilionis, I
Drewniak, BA
Constantinescu, EM
AF Bilionis, I.
Drewniak, B. A.
Constantinescu, E. M.
TI Crop physiology calibration in the CLM
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID ENSEMBLE KALMAN FILTER; EARTH SYSTEM MODEL; MAIZE; EXCHANGE
AB Farming is using more of the land surface, as population increases and agriculture is increasingly applied for non-nutritional purposes such as biofuel production. This agricultural expansion exerts an increasing impact on the terrestrial carbon cycle. In order to understand the impact of such processes, the Community Land Model (CLM) has been augmented with a CLM-Crop extension that simulates the development of three crop types: maize, soybean, and spring wheat. The CLM-Crop model is a complex system that relies on a suite of parametric inputs that govern plant growth under a given atmospheric forcing and available resources. CLM-Crop development used measurements of gross primary productivity (GPP) and net ecosystem exchange (NEE) from AmeriFlux sites to choose parameter values that optimize crop productivity in the model. In this paper, we calibrate these parameters for one crop type, soybean, in order to provide a faithful projection in terms of both plant development and net carbon exchange. Calibration is performed in a Bayesian framework by developing a scalable and adaptive scheme based on sequential Monte Carlo (SMC). The model showed significant improvement of crop productivity with the new calibrated parameters. We demonstrate that the calibrated parameters are applicable across alternative years and different sites.
C1 [Bilionis, I.; Constantinescu, E. M.] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
[Drewniak, B. A.] Argonne Natl Lab, Div Environm Sci, Argonne, IL 60439 USA.
RP Constantinescu, EM (reprint author), Argonne Natl Lab, Div Math & Comp Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM emconsta@mcs.anl.gov
FU Office of Biological and Environmental Research, US Department of Energy
[DE-AC02-06CH11357]
FX This work was supported by the Office of Biological and Environmental
Research, US Department of Energy, under contract DE-AC02-06CH11357. We
gratefully acknowledge the computing resources provided on Fusion, a
320-node computing cluster operated by the Laboratory Computing Resource
Center at Argonne National Laboratory.
NR 29
TC 4
Z9 4
U1 0
U2 15
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2015
VL 8
IS 4
BP 1071
EP 1083
DI 10.5194/gmd-8-1071-2015
PG 13
WC Geosciences, Multidisciplinary
SC Geology
GA CH2FT
UT WOS:000353841800007
ER
PT J
AU Tezaur, IK
Perego, M
Salinger, AG
Tuminaro, RS
Price, SF
AF Tezaur, I. K.
Perego, M.
Salinger, A. G.
Tuminaro, R. S.
Price, S. F.
TI Albany/FELIX: a parallel, scalable and robust, finite element,
first-order Stokes approximation ice sheet solver built for advanced
analysis
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID PARTIAL-DIFFERENTIAL-EQUATIONS; EMBEDDED ANALYSIS CAPABILITIES; MANAGING
SOFTWARE COMPLEXITY; SEA-LEVEL RISE; HIGHER-ORDER; MULTIPHYSICS
SIMULATION; DATA ASSIMILATION; MULTIGRID METHOD; FLOW MODELS; GREENLAND
AB This paper describes a new parallel, scalable and robust finite element based solver for the first-order Stokes momentum balance equations for ice flow. The solver, known as Albany/FELIX, is constructed using the component-based approach to building application codes, in which mature, modular libraries developed as a part of the Trilinos project are combined using abstract interfaces and template-based generic programming, resulting in a final code with access to dozens of algorithmic and advanced analysis capabilities. Following an overview of the relevant partial differential equations and boundary conditions, the numerical methods chosen to discretize the ice flow equations are described, along with their implementation. The results of several verification studies of the model accuracy are presented using (1) new test cases for simplified two-dimensional (2-D) versions of the governing equations derived using the method of manufactured solutions, and (2) canonical ice sheet modeling benchmarks. Model accuracy and convergence with respect to mesh resolution are then studied on problems involving a realistic Greenland ice sheet geometry discretized using hexahedral and tetrahedral meshes. Also explored as a part of this study is the effect of vertical mesh resolution on the solution accuracy and solver performance. The robustness and scalability of our solver on these problems is demonstrated. Lastly, we show that good scalability can be achieved by preconditioning the iterative linear solver using a new algebraic multilevel preconditioner, constructed based on the idea of semi-coarsening.
C1 [Tezaur, I. K.] Sandia Natl Labs, Quantitat Modeling & Anal Dept, Livermore, CA 94551 USA.
[Perego, M.; Salinger, A. G.; Tuminaro, R. S.] Sandia Natl Labs, Computat Math Dept, Albuquerque, NM 87185 USA.
[Price, S. F.] Los Alamos Natl Lab, Fluid Dynam & Solid Mech Grp, Los Alamos, NM 87545 USA.
RP Tezaur, IK (reprint author), Sandia Natl Labs, Quantitat Modeling & Anal Dept, POB 969,MS 9159, Livermore, CA 94551 USA.
EM ikalash@sandia.gov
RI Price, Stephen /E-1568-2013
OI Price, Stephen /0000-0001-6878-2553
FU Scientific Discovery through Advanced Computing (SciDAC) program - U.S.
Department of Energy (DOE), Office of Science, Advanced Scientific
Computing Research and Biological and Environmental Research; Office of
Science of the U.S. Department of Energy [DE-AC02-05CH11231]; Oak Ridge
Leadership Computing Facility (OLCF); DOE Office of Science
[DE-AC02-05CH11231, DE-AC05-00OR22725]
FX Support for all authors was provided through the Scientific Discovery
through Advanced Computing (SciDAC) program funded by the U.S.
Department of Energy (DOE), Office of Science, Advanced Scientific
Computing Research and Biological and Environmental Research. This
research used resources of the National Energy Research Scientific
Computing Center (NERSC; supported by the Office of Science of the U.S.
Department of Energy under contract DE-AC02-05CH11231) and the Oak Ridge
Leadership Computing Facility (OLCF; supported by the DOE Office of
Science under contracts DE-AC02-05CH11231 and DE-AC05-00OR22725). The
authors thank M. Norman of Oak Ridge National Laboratory for the
generation of the Greenland geometry data sets, J. Johnson (and
students) of the University of Montana for initial development of the
ISMIP-HOM plotting scripts, and M. Hoffman and B. Lipscomb at Los Alamos
National Laboratory for useful discussions that led to some of the ideas
and results presented in this paper.
NR 72
TC 8
Z9 8
U1 1
U2 2
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2015
VL 8
IS 4
BP 1197
EP 1220
DI 10.5194/gmd-8-1197-2015
PG 24
WC Geosciences, Multidisciplinary
SC Geology
GA CH2FT
UT WOS:000353841800014
ER
PT J
AU Ray, J
Lee, J
Yadav, V
Lefantzi, S
Michalak, AM
Waanders, BV
AF Ray, J.
Lee, J.
Yadav, V.
Lefantzi, S.
Michalak, A. M.
Waanders, B. van Bloemen
TI A sparse reconstruction method for the estimation of multi-resolution
emission fields via atmospheric inversion
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID ORTHOGONAL MATCHING PURSUIT; CARBON-DIOXIDE EMISSIONS; FOSSIL-FUEL
COMBUSTION; SIGNAL RECOVERY; GAS EMISSIONS; MODEL; SATELLITE;
REGULARIZATION; STRATEGIES; EXCHANGE
AB Atmospheric inversions are frequently used to estimate fluxes of atmospheric greenhouse gases (e.g., biospheric CO2 flux fields) at Earth's surface. These inversions typically assume that flux departures from a prior model are spatially smoothly varying, which are then modeled using a multi-variate Gaussian. When the field being estimated is spatially rough, multi-variate Gaussian models are difficult to construct and a wavelet-based field model may be more suitable. Unfortunately, such models are very high dimensional and are most conveniently used when the estimation method can simultaneously perform data-driven model simplification (removal of model parameters that cannot be reliably estimated) and fitting. Such sparse reconstruction methods are typically not used in atmospheric inversions. In this work, we devise a sparse reconstruction method, and illustrate it in an idealized atmospheric inversion problem for the estimation of fossil fuel CO2 (ffCO(2)) emissions in the lower 48 states of the USA.
Our new method is based on stagewise orthogonal matching pursuit (StOMP), a method used to reconstruct compressively sensed images. Our adaptations bestow three properties to the sparse reconstruction procedure which are useful in atmospheric inversions. We have modified StOMP to incorporate prior information on the emission field being estimated and to enforce non-negativity on the estimated field. Finally, though based on wavelets, our method allows for the estimation of fields in non-rectangular geometries, e.g., emission fields inside geographical and political boundaries. Our idealized inversions use a recently developed multi-resolution (i.e., wavelet-based) random field model developed for ffCO(2) emissions and synthetic observations of ffCO(2) concentrations from a limited set of measurement sites. We find that our method for limiting the estimated field within an irregularly shaped region is about a factor of 10 faster than conventional approaches. It also reduces the overall computational cost by a factor of 2. Further, the sparse reconstruction scheme imposes non-negativity without introducing strong nonlinearities, such as those introduced by employing log-transformed fields, and thus reaps the benefits of simplicity and computational speed that are characteristic of linear inverse problems.
C1 [Ray, J.; Lee, J.; Lefantzi, S.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Yadav, V.; Michalak, A. M.] Carnegie Inst Sci, Stanford, CA 94305 USA.
[Waanders, B. van Bloemen] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Ray, J (reprint author), Sandia Natl Labs, POB 969, Livermore, CA 94551 USA.
EM jairay@sandia.gov
FU Sandia National Laboratories' LDRD (Laboratory Directed Research and
Development) funds - Geosciences Investment Area; US Department of
Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
FX This work was supported by Sandia National Laboratories' LDRD
(Laboratory Directed Research and Development) funds, sponsored by the
Geosciences Investment Area. Sandia National Laboratories is a
multi-program 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 DE-AC04-94AL85000.
NR 48
TC 0
Z9 0
U1 4
U2 13
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2015
VL 8
IS 4
BP 1259
EP 1273
DI 10.5194/gmd-8-1259-2015
PG 15
WC Geosciences, Multidisciplinary
SC Geology
GA CH2FT
UT WOS:000353841800018
ER
PT S
AU Alessi, D
Carr, CW
Negres, RA
Hackel, RP
Stanion, KA
Cross, DA
Guss, G
Nissen, JD
Luthi, R
Fair, JE
Britten, JA
Haefner, C
AF Alessi, D.
Carr, C. W.
Negres, R. A.
Hackel, R. P.
Stanion, K. A.
Cross, D. A.
Guss, G.
Nissen, J. D.
Luthi, R.
Fair, J. E.
Britten, J. A.
Haefner, C.
BE Awwal, AAS
Lane, MA
TI Optical damage performance measurements of multilayer dielectric
gratings for high energy short pulse lasers
SO HIGH POWER LASERS FOR FUSION RESEARCH III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd Biennial Conference on High Power Lasers for Fusion Research
CY FEB 10-12, 2015
CL San Francisco, CA
SP SPIE
DE laser damage; picosecond phenomena; multilayer dielectric gratings;
damage density; petawatt lasers
AB We investigate the laser damage resistance of multilayer dielectric (MLD) diffraction gratings used in the pulse compressors for high energy, high peak power laser systems such as the Advanced Radiographic Capability (ARC) Petawatt laser on the National Ignition Facility (NIF). Our study includes measurements of damage threshold and damage density (rho(Phi)) with picosecond laser pulses at 1053 nm under relevant operational conditions. Initial results indicate that sparse defects present on the optic surface from the manufacturing processes are responsible for damage initiation at laser fluences below the damage threshold indicated by the standard R-on-1 test methods, as is the case for laser damage with nanosecond pulse durations. As such, this study supports the development of damage density measurements for more accurate predictions on the damage performance of large area optics.
C1 [Alessi, D.; Carr, C. W.; Negres, R. A.; Hackel, R. P.; Stanion, K. A.; Cross, D. A.; Guss, G.; Nissen, J. D.; Luthi, R.; Fair, J. E.; Britten, J. A.; Haefner, C.] Lawrence Livermore Natl Lab, NIF & Photon Sci, Livermore, CA 94550 USA.
RP Alessi, D (reprint author), Lawrence Livermore Natl Lab, NIF & Photon Sci, 7000 East Ave, Livermore, CA 94550 USA.
EM alessi2@llnl.gov
NR 12
TC 0
Z9 0
U1 3
U2 8
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-435-6
J9 PROC SPIE
PY 2015
VL 9345
DI 10.1117/12.2084823
PG 7
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6FM
UT WOS:000353894900005
ER
PT S
AU Awwal, A
Wilhelmsen, K
Roberts, R
Leach, R
Kamm, VM
Ngo, T
Lowe-Webb, R
AF Awwal, Abdul
Wilhelmsen, Karl
Roberts, Randy
Leach, Richard
Kamm, Victoria Miller
Ngo, Tony
Lowe-Webb, Roger
BE Awwal, AAS
Lane, MA
TI Centroid stabilization in alignment of FOA Corner Cube: designing of a
matched filter
SO HIGH POWER LASERS FOR FUSION RESEARCH III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd Biennial Conference on High Power Lasers for Fusion Research
CY FEB 10-12, 2015
CL San Francisco, CA
SP SPIE
DE laser alignment; position detection; template matching; matched filter;
image processing and analysis; correlation peak; beam alignment; High
power laser
ID SYSTEM
AB The current automation of image-based alignment of NIF high energy laser beams is providing the capability of executing multiple target shots per day. An important aspect of performing multiple shots in a day is to reduce additional time spent aligning specific beams due to perturbations in those beam images. One such alignment is beam centration through the second and third harmonic generating crystals in the final optics assembly (FOA), which employs two retro-reflecting corner cubes to represent the beam center. The FOA houses the frequency conversion crystals for third harmonic generation as the beams enters the target chamber. Beam-to-beam variations and systematic beam changes over time in the FOA corner-cube images can lead to a reduction in accuracy as well as increased convergence durations for the template based centroid detector. This work presents a systematic approach of maintaining FOA corner cube centroid templates so that stable position estimation is applied thereby leading to fast convergence of alignment control loops. In the matched filtering approach, a template is designed based on most recent images taken in the last 60 days. The results show that new filter reduces the divergence of the position estimation of FOA images.
C1 [Awwal, Abdul; Wilhelmsen, Karl; Roberts, Randy; Leach, Richard; Kamm, Victoria Miller; Ngo, Tony; Lowe-Webb, Roger] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Awwal, A (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM awwal1@llnl.gov
NR 11
TC 0
Z9 0
U1 1
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-435-6
J9 PROC SPIE
PY 2015
VL 9345
DI 10.1117/12.2083537
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6FM
UT WOS:000353894900016
ER
PT S
AU Di Nicola, JM
Yang, ST
Boley, CD
Crane, JK
Heebner, JE
Spinka, TM
Arnold, P
Barty, CPJ
Bowers, MW
Budge, TS
Christensen, K
Dawson, JW
Erbert, G
Feigenbaum, E
Guss, G
Haefner, C
Hermann, MR
Homoelle, D
Jarboe, JA
Lawson, JK
Lowe-Webb, R
McCandless, K
McHale, B
Pelz, LJ
Pham, PP
Prantil, MA
Rehak, ML
Rever, MA
Rushford, MC
Sacks, RA
Shaw, M
Smauley, D
Smith, LK
Speck, R
Tietbohl, G
Wegner, PJ
Widmayer, C
AF Di Nicola, J. M.
Yang, S. T.
Boley, C. D.
Crane, J. K.
Heebner, J. E.
Spinka, T. M.
Arnold, P.
Barty, C. P. J.
Bowers, M. W.
Budge, T. S.
Christensen, K.
Dawson, J. W.
Erbert, G.
Feigenbaum, E.
Guss, G.
Haefner, C.
Hermann, M. R.
Homoelle, D.
Jarboe, J. A.
Lawson, J. K.
Lowe-Webb, R.
McCandless, K.
McHale, B.
Pelz, L. J.
Pham, P. P.
Prantil, M. A.
Rehak, M. L.
Rever, M. A.
Rushford, M. C.
Sacks, R. A.
Shaw, M.
Smauley, D.
Smith, L. K.
Speck, R.
Tietbohl, G.
Wegner, P. J.
Widmayer, C.
BE Awwal, AAS
Lane, MA
TI The Commissioning of the Advanced Radiographic Capability Laser System:
Experimental and Modeling Results at the Main Laser Output
SO HIGH POWER LASERS FOR FUSION RESEARCH III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd Biennial Conference on High Power Lasers for Fusion Research
CY FEB 10-12, 2015
CL San Francisco, CA
SP SPIE
DE CPA; short-pulse; petawatt; picosecond; kilojoule; ARC; NIF
ID NATIONAL-IGNITION-FACILITY; ELECTRODE POCKELS CELL; PETAWATT LASER;
HIGH-ENERGY; PULSES
AB The National Ignition Facility (NIF) at Lawrence Livermore National Laboratory is the first of a kind megajoule-class laser with 192 beams capable of delivering over 1.8 MJ and 500TW of 351nm light [1], [2]. It has been commissioned and operated since 2009 to support a wide range of missions including the study of inertial confinement fusion, high energy density physics, material science, and laboratory astrophysics.
In order to advance our understanding, and enable short-pulse multi-frame radiographic experiments of dense cores of cold material, the generation of very hard x-rays above 50 keV is necessary. X-rays with such characteristics can be efficiently generated with high intensity laser pulses above 10(17) W/cm(2) [3]. The Advanced Radiographic Capability (ARC) [4] which is currently being commissioned on the NIF will provide eight, 1 ps to 50 ps, adjustable pulses with up to 1.7 kJ each to create x-ray point sources enabling dynamic, multi-frame x-ray backlighting.
This paper will provide an overview of the ARC system and report on the laser performance tests conducted with a stretched-pulse up to the main laser output and their comparison with the results of our laser propagation codes.
C1 [Di Nicola, J. M.; Yang, S. T.; Boley, C. D.; Crane, J. K.; Heebner, J. E.; Spinka, T. M.; Arnold, P.; Barty, C. P. J.; Bowers, M. W.; Budge, T. S.; Christensen, K.; Dawson, J. W.; Erbert, G.; Feigenbaum, E.; Guss, G.; Haefner, C.; Hermann, M. R.; Homoelle, D.; Jarboe, J. A.; Lawson, J. K.; Lowe-Webb, R.; McCandless, K.; McHale, B.; Pelz, L. J.; Pham, P. P.; Prantil, M. A.; Rehak, M. L.; Rever, M. A.; Rushford, M. C.; Sacks, R. A.; Shaw, M.; Smauley, D.; Smith, L. K.; Speck, R.; Tietbohl, G.; Wegner, P. J.; Widmayer, C.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Di Nicola, JM (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM dinicola2@llnl.gov
NR 34
TC 3
Z9 3
U1 3
U2 12
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-435-6
J9 PROC SPIE
PY 2015
VL 9345
AR 93450I
DI 10.1117/12.2080459
PG 12
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6FM
UT WOS:000353894900013
ER
PT S
AU Kane, JO
Martinez, DA
Pound, MW
Heeter, RF
Casner, A
Mancini, RC
AF Kane, Jave O.
Martinez, David A.
Pound, Marc W.
Heeter, Robert F.
Casner, Alexis
Mancini, Roberto C.
BE Awwal, AAS
Lane, MA
TI Dynamics of Molecular Clouds: Observations, Simulations, and NIF
Experiments
SO HIGH POWER LASERS FOR FUSION RESEARCH III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd Biennial Conference on High Power Lasers for Fusion Research
CY FEB 10-12, 2015
CL San Francisco, CA
SP SPIE
DE Eagle Nebula; NIF; laser; long duration; multi hohlraum; molecular
clouds; cometary
ID YOUNG STELLAR OBJECTS; STAR-FORMATION; IONIZATION FRONTS; EAGLE NEBULA;
HII-REGIONS; HYDRODYNAMIC INSTABILITY; LABORATORY EXPERIMENTS; COMETARY
GLOBULES; PHOTOEVAPORATION; PILLARS
AB For over fifteen years astronomers at the University of Maryland and theorists and experimentalists at LLNL have investigated the origin and dynamics of the famous Pillars of the Eagle Nebula, and similar parsec-scale structures at the boundaries of HII regions in molecular hydrogen clouds. Eagle Nebula was selected as one of the National Ignition Facility (NIF) Science programs, and has been awarded four NIF shots to study the cometary model of pillar formation. These experiments require a long-duration drive, 30 ns or longer, to drive deeply nonlinear ablative hydrodynamics. The NIF shots will feature a new long-duration x-ray source prototyped at the Omega EP laser, in which multiple hohlraums are driven with UV light in series for 10 ns each and reradiate the energy as an extended x-ray pulse. The new source will be used to illuminate a science package with directional radiation mimicking a cluster of stars. The scaled Omega EP shots tested whether a multi-hohlraum concept is viable - whether earlier time hohlraums would degrade later time hohlraums by preheat or by ejecting ablated plumes that would deflect the later beams. The Omega EP shots illuminated three 2.8 mm long by 1.4 mm diameter Cu hohlraums for 10 ns each with 4.3 kJ per hohlraum. At NIF each hohlraum will be 4 mm long by 3 mm in diameter and will be driven with 80 kJ per hohlraum.
C1 [Kane, Jave O.; Martinez, David A.; Heeter, Robert F.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Pound, Marc W.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Casner, Alexis] CEA, DAM, DIF, F-91297 Arpajon, France.
[Mancini, Roberto C.] Univ Nevada, Dept Phys, Reno, NV 89503 USA.
RP Kane, JO (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
RI CASNER, Alexis/B-7458-2014
OI CASNER, Alexis/0000-0003-2176-1389
NR 45
TC 0
Z9 0
U1 0
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-435-6
J9 PROC SPIE
PY 2015
VL 9345
AR 93450C
DI 10.1117/12.2072369
PG 9
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6FM
UT WOS:000353894900008
ER
PT S
AU Knutson, B
Dunne, M
Kasper, J
Sheehan, T
Lang, D
Anklam, T
Roberts, V
Mau, D
AF Knutson, Brad
Dunne, Mike
Kasper, Jack
Sheehan, Tim
Lang, Dwight
Anklam, Tom
Roberts, Valerie
Mau, Derek
BE Awwal, AAS
Lane, MA
TI Inertial Fusion Power Plant Concept of Operations and Maintenance
SO HIGH POWER LASERS FOR FUSION RESEARCH III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd Biennial Conference on High Power Lasers for Fusion Research
CY FEB 10-12, 2015
CL San Francisco, CA
SP SPIE
DE inertial; fusion; laser; engine; power; plant; operations; maintenance
ID ENERGY; LIFE
AB Parsons and LLNL scientists and engineers performed design and engineering work for power plant pre-conceptual designs based on the anticipated laser fusion demonstrations at the National Ignition Facility (NIF). Work included identifying concepts of operations and maintenance (O&M) and associated requirements relevant to fusion power plant systems analysis.
A laser fusion power plant would incorporate a large process and power conversion facility with a laser system and fusion engine serving as the heat source, based in part on some of the systems and technologies advanced at NIF. Process operations would be similar in scope to those used in chemical, oil refinery, and nuclear waste processing facilities, while power conversion operations would be similar to those used in commercial thermal power plants. While some aspects of the tritium fuel cycle can be based on existing technologies, many aspects of a laser fusion power plant presents several important and unique O&M requirements that demand new solutions. For example, onsite recovery of tritium; unique remote material handling systems for use in areas with high radiation, radioactive materials, or high temperatures; a five-year fusion engine target chamber replacement cycle with other annual and multi-year cycles anticipated for major maintenance of other systems, structures, and components (SSC); and unique SSC for fusion target waste recycling streams.
This paper describes fusion power plant O&M concepts and requirements, how O&M requirements could be met in design, and how basic organizational and planning issues can be addressed for a safe, reliable, economic, and feasible fusion power plant.
C1 [Knutson, Brad; Kasper, Jack; Sheehan, Tim; Mau, Derek] Parsons, Pasadena, CA 91124 USA.
[Dunne, Mike; Lang, Dwight; Anklam, Tom; Roberts, Valerie] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Knutson, B (reprint author), Parsons, 100 West Walnut St, Pasadena, CA 91124 USA.
NR 3
TC 0
Z9 0
U1 4
U2 7
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-435-6
J9 PROC SPIE
PY 2015
VL 9345
AR 934506
DI 10.1117/12.2081044
PG 15
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6FM
UT WOS:000353894900003
ER
PT S
AU Labaria, GR
Warrick, AL
Celliers, PM
Kalantar, DH
AF Labaria, George R.
Warrick, Abbie L.
Celliers, Peter M.
Kalantar, Daniel H.
BE Awwal, AAS
Lane, MA
TI A robust in-situ warp-correction algorithm for VISAR streak camera data
at the National Ignition Facility
SO HIGH POWER LASERS FOR FUSION RESEARCH III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd Biennial Conference on High Power Lasers for Fusion Research
CY FEB 10-12, 2015
CL San Francisco, CA
SP SPIE
DE visar; streak camera; warp-correction; thin-plate splines
ID INTERPOLATION
AB The National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory is a 192-beam pulsed laser system for high energy density physics experiments. Sophisticated diagnostics have been designed around key performance metrics to achieve ignition. The Velocity Interferometer System for Any Reflector (VISAR) is the primary diagnostic for measuring the timing of shocks induced into an ignition capsule. The VISAR system utilizes three streak cameras; these streak cameras are inherently nonlinear and require warp corrections to remove these nonlinear effects. A detailed calibration procedure has been developed with National Security Technologies (NSTec) and applied to the camera correction analysis in production. However, the camera nonlinearities drift over time affecting the performance of this method. An in-situ fiber array is used to inject a comb of pulses to generate a calibration correction in order to meet the timing accuracy requirements of VISAR. We develop a robust algorithm for the analysis of the comb calibration images to generate the warp correction that is then applied to the data images. Our algorithm utilizes the method of thin-plate splines (TPS) to model the complex nonlinear distortions in the streak camera data. In this paper, we focus on the theory and implementation of the TPS warp-correction algorithm for the use in a production environment.
C1 [Labaria, George R.] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA.
[Labaria, George R.; Warrick, Abbie L.; Celliers, Peter M.; Kalantar, Daniel H.] Lawrence Livermore Natl Lab, Livermore, CA USA.
RP Labaria, GR (reprint author), Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA.
EM glabaria@soe.ucsc.edu; warrick1@llnl.gov
NR 13
TC 0
Z9 0
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-435-6
J9 PROC SPIE
PY 2015
VL 9345
AR 93450Q
DI 10.1117/12.2085127
PG 15
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6FM
UT WOS:000353894900019
ER
PT S
AU Leach, RR
Beltsar, I
Burkhart, S
Lowe-Webb, R
Kamm, VM
Salmon, T
Wilhelmsen, K
AF Leach, Richard R., Jr.
Beltsar, Ilona
Burkhart, Scott
Lowe-Webb, Roger
Kamm, Victoria Miller
Salmon, Thad
Wilhelmsen, Karl
BE Awwal, AAS
Lane, MA
TI Near Field Intensity Trends of Main Laser Alignment Images in the
National Ignition Facility (NIF)
SO HIGH POWER LASERS FOR FUSION RESEARCH III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd Biennial Conference on High Power Lasers for Fusion Research
CY FEB 10-12, 2015
CL San Francisco, CA
SP SPIE
DE intensity ratio; big data; trend analysis; light transmission; beam
path; exposure time
ID SYSTEM
AB The National Ignition Facility (NIF) utilizes 192 high-energy laser beams focused with enough power and precision on a hydrogen-filled spherical, cryogenic target to potentially initiate a fusion reaction. NIF has been operational for six years and during that time, thousands of successful laser firings or shots have been executed. Critical instrument measurements and camera images are carefully recorded for each shot. The result is a massive and complex database or 'big data' archive that can be used to investigate the state of the laser system at any point in its history or to locate and track trends in the laser operation over time. In this study, the optical light throughput for more than 1600 NIF shots for each of the 192 main laser beams and 48 quads was measured over a three year period from January 2009 to October 2012. The purpose was to verify that the variation in the transmission of light through the optics performed within design expectations during this time period. Differences between average or integrated intensity from images recorded by the input sensor package (ISP) and by the output sensor package (OSP) in the NIF beam-line were examined. A metric is described for quantifying changes in the integrated intensity measurements. Changes in light transmission from the NIF main laser over the three year time-frame are presented.
C1 [Leach, Richard R., Jr.; Beltsar, Ilona; Burkhart, Scott; Lowe-Webb, Roger; Kamm, Victoria Miller; Salmon, Thad; Wilhelmsen, Karl] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Leach, RR (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
NR 8
TC 0
Z9 0
U1 1
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-435-6
J9 PROC SPIE
PY 2015
VL 9345
DI 10.1117/12.2084006
PG 12
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6FM
UT WOS:000353894900009
ER
PT S
AU Rehak, M
Di Nicola, JM
AF Rehak, M.
Di Nicola, J. M.
BE Awwal, AAS
Lane, MA
TI COMBINE: an Integrated Opto-Mechanical Tool for Laser Performance
Modeling
SO HIGH POWER LASERS FOR FUSION RESEARCH III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd Biennial Conference on High Power Lasers for Fusion Research
CY FEB 10-12, 2015
CL San Francisco, CA
SP SPIE
DE ANSYS; finite element analysis; birefringence; photoelasticity;
polarization; eikonal equation; wavefront
AB Accurate modeling of thermal, mechanical and optical processes is important for achieving reliable, high-performance high energy lasers such as those at the National Ignition Facility [1] (NIF). The need for this capability is even more critical for high average power, high repetition rate applications. Modeling the effects of stresses and temperature fields on optical properties allows for optimal design of optical components and more generally of the architecture of the laser system itself. Stresses change the indices of refractions and induce inhomogeneities and anisotropy. We present a modern, integrated analysis tool that efficiently produces reliable results that are used in our laser propagation tools such as VBL [5]. COMBINE is built on and supplants the existing legacy tools developed for the previous generations of lasers at LLNL but also uses commercially available mechanical finite element codes ANSYS or COMSOL (including computational fluid dynamics). The COMBINE code computes birefringence and wave front distortions due to mechanical stresses on lenses and slabs of arbitrary geometry. The stresses calculated typically originate from mounting support, vacuum load, gravity, heat absorption and/or attending cooling. Of particular importance are the depolarization and detuning effects of nonlinear crystals due to thermal loading. Results are given in the form of Jones matrices, depolarization maps and wave front distributions. An incremental evaluation of Jones matrices and ray propagation in a 3D mesh with a stress and temperature field is performed. Wavefront and depolarization maps are available at the optical aperture and at slices within the optical element. The suite is validated, user friendly, supported, documented and amenable to collaborative development. * COMBINE stands for Code for Opto-Mechanical Birefringence Integrated Numerical Evaluations
C1 [Rehak, M.; Di Nicola, J. M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Rehak, M (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
NR 11
TC 0
Z9 0
U1 5
U2 13
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-435-6
J9 PROC SPIE
PY 2015
VL 9345
DI 10.1117/12.2080403
PG 13
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6FM
UT WOS:000353894900015
ER
PT S
AU Sacks, RA
McCandless, KP
Feigenbaum, E
Di Nicola, JMG
Luke, KJ
Riedel, W
Learn, RJ
Kraines, BJ
AF Sacks, R. A.
McCandless, K. P.
Feigenbaum, E.
Di Nicola, J. M. G.
Luke, K. J.
Riedel, W.
Learn, R. J.
Kraines, B. J.
BE Awwal, AAS
Lane, MA
TI The virtual beamline (VBL) laser simulation code
SO HIGH POWER LASERS FOR FUSION RESEARCH III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd Biennial Conference on High Power Lasers for Fusion Research
CY FEB 10-12, 2015
CL San Francisco, CA
SP SPIE
DE laser; modeling; NIF; LPOM; physical optics; design optimization
ID PROPAGATION; AMPLIFIER; LIGHT
AB Design, activation, and operation of large laser systems rely on accurate, efficient, user-friendly simulation of laser performance. At the Lawrence Livermore National Laboratory, the principle tool for this simulation over the past ten years has been the VBL, an outgrowth of the Prop code that uses the same text-file input grammar and is closely integrated with the Laser Performance Operations Model (LPOM)(1). Here, we describe the physics capabilities of this code, its user interface, and our plans for near-term future developments.
C1 [Sacks, R. A.; McCandless, K. P.; Feigenbaum, E.; Di Nicola, J. M. G.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Luke, K. J.] Cornell Univ, Ithaca, NY USA.
[Riedel, W.] Apple Inc, Cupertino, CA USA.
[Learn, R. J.] Florida State Univ, Tallahassee, FL 32306 USA.
[Kraines, B. J.] Rochester Inst Technol, Rochester, NY 14623 USA.
RP Sacks, RA (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM sacks1@llnl.gov
NR 16
TC 0
Z9 0
U1 2
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-435-6
J9 PROC SPIE
PY 2015
VL 9345
AR 93450M
DI 10.1117/12.2084848
PG 18
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6FM
UT WOS:000353894900017
ER
PT S
AU Shaw, M
House, R
AF Shaw, Michael
House, Ronald
BE Awwal, AAS
Lane, MA
TI Laser Performance Operations Model (LPOM): The computational system that
automates the setup and performance analysis of the National Ignition
Facility
SO HIGH POWER LASERS FOR FUSION RESEARCH III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 3rd Biennial Conference on High Power Lasers for Fusion Research
CY FEB 10-12, 2015
CL San Francisco, CA
SP SPIE
DE Solid-state lasers; fusion; controls; image analysis; expert systems
AB The National Ignition Facility (NIF) is a stadium-sized facility containing a 192-beam, 1.8 MJ, 500-TW, 351-nm laser system together with a 10-m diameter target chamber with room for many target diagnostics. NIF is the world's largest laser experimental system, providing a national center to study inertial confinement fusion and the physics of matter at extreme energy densities and pressures. A computational system, the Laser Performance Operations Model (LPOM) has been developed that automates the laser setup process, and accurately predict laser energetics. LPOM uses diagnostic feedback from previous NIF shots to maintain accurate energetics models (gains and losses), as well as links to operational databases to provide 'as currently installed' optical layouts for each of the 192 NIF beamlines. LPOM deploys a fully integrated laser physics model, the Virtual Beamline (VBL), in its predictive calculations in order to meet the accuracy requirements of NIF experiments, and to provide the ability to determine the damage risk to optical elements throughout the laser chain. LPOM determines the settings of the injection laser system required to achieve the desired laser output, provides equipment protection, and determines the diagnostic setup. Additionally, LPOM provides real-time post shot data analysis and reporting for each NIF shot. The LPOM computation system is designed as a multi-host computational cluster (with 200 compute nodes, providing the capability to run full NIF simulations fully parallel) to meet the demands of both the controls systems within a shot cycle, and the NIF user community outside of a shot cycle.
C1 [Shaw, Michael; House, Ronald] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Shaw, M (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
NR 11
TC 2
Z9 2
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-435-6
J9 PROC SPIE
PY 2015
VL 9345
AR 93450E
DI 10.1117/12.2084532
PG 16
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6FM
UT WOS:000353894900010
ER
PT S
AU Porter, R
Zimmer, BG
AF Porter, Reid
Zimmer, Beate G.
BE Egiazarian, KO
Agaian, SS
Gotchev, AP
TI Links Between Binary Classification and the Assignment Problem in
Ordered Hypothesis Machines
SO IMAGE PROCESSING: ALGORITHMS AND SYSTEMS XIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Image Processing - Algorithms and Systems XIII
CY FEB 10-11, 2015
CL San Francisco, CA
SP Soc Imaging Sci & Technol, SPIE
DE binary classification; stack filters; assignment problem; bipartite
matching
AB Ordered Hypothesis Machines (OHM) are large margin classifiers that belong to the class of Generalized Stack Filters which were originally developed for non-linear signal processing. In previous work we showed how OHM classifiers are equivalent to a variation of Nearest Neighbor classifiers, with the advantage that training involves minimizing a loss function which includes a regularization parameter that controls class complexity. In this paper we report a new connection between OHM training and the Linear Assignment problem, a combinatorial optimization problem that can be solved efficiently with (amongst others) the Hungarian algorithm. Specifically, for balanced classes, and particular choices of parameters, OHM training is the dual of the Assignment problem. The duality sheds new light on the OHM training problem, opens the door to new training methods and suggests several new directions for research.
C1 [Porter, Reid] Los Alamos Natl Lab, Intelligence & Space Res Div, Los Alamos, NM 87545 USA.
[Zimmer, Beate G.] Texas A&M Univ, Dept Math & Stat, Corpus Christi, TX 78412 USA.
RP Porter, R (reprint author), Los Alamos Natl Lab, Intelligence & Space Res Div, Los Alamos, NM 87545 USA.
NR 17
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-489-9
J9 PROC SPIE
PY 2015
VL 9399
AR 939902
DI 10.1117/12.2083994
PG 8
WC Computer Science, Interdisciplinary Applications; Optics; Imaging
Science & Photographic Technology
SC Computer Science; Optics; Imaging Science & Photographic Technology
GA BC6MA
UT WOS:000354103800001
ER
PT J
AU Boyle, TJ
Neville, ML
Yonemoto, DT
Alam, TM
Jan, L
AF Boyle, Timothy J.
Neville, Michael L.
Yonemoto, Daniel T.
Alam, Todd M.
Jan, Lily
TI Coordination chemistry of 2,6-dimethanol pyridine with early transition
metal alkoxide compounds
SO JOURNAL OF COORDINATION CHEMISTRY
LA English
DT Article
DE Alkoxides; Pyridine; Group 4; Titanium; Zirconium; Hafnium
ID X-RAY STRUCTURES; N-HETEROCYCLIC CARBENE; TITANIUM ALKOXIDES;
ALPHA,ALPHA-DISUBSTITUTED-2,6-PYRIDINEDIMETHOXIDE LIGANDS; TANTALUM
COMPLEXES; REACTIVITY; CATALYSTS; ALCOHOLS; WATER
AB The coordination behavior of the 2,6-dimethanol pyridine (H-2-pdm) with Group 4 and 5 metal alkoxides was undertaken through a series of alcoholysis reactions. The products were crystallographically identified as: (OR)(2)M((2)-pdm)[(-pdm)M(OR)(2)](2) (M=Ti, OR=OPri (1 py), ONep (2 HONep, tol); Zr, OBut (3)), [M-3((3)-pdm)(-pdm)(2)(-ONep)(2)(ONep)(4)] (M=Zr (4), Hf (5)), [M(-pdm)(OR)(3)](2) [M/OR=Nb/OEt (6), and Ta/ONep (7)] where =(1),(1),(2)(O,N,O), (2)=(2),(1),(2)(O,N,O), (3)=(1),(1),(3)(O,N,O), OEt=OCH2CH3, OPri=OCH(CH3)(2), OBut=OC(CH3)(3), and ONep=OCH2C(CH3)(3). For each complex, pdm was a bichelating (O,N,O) ligand generating trinuclear species coupled with a variety of additional bridging modes: , (2), and (3). Further analyses by multinuclear and DOSY NMR studies indicated that the structures were retained in solution.
C1 [Boyle, Timothy J.; Neville, Michael L.; Yonemoto, Daniel T.; Alam, Todd M.; Jan, Lily] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87185 USA.
RP Boyle, TJ (reprint author), Sandia Natl Labs, Adv Mat Lab, POB 5800, Albuquerque, NM 87185 USA.
EM tjboyle@Sandia.gov
FU Laboratory Directed Research and Development (LDRD) programs at Sandia
National Laboratories; National Science Foundation CRIF:MU award
[CHE04-43580]; US Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]
FX This work was supported by the Laboratory Directed Research and
Development (LDRD) programs at Sandia National Laboratories and the
National Science Foundation CRIF:MU award to Prof Kemp of the University
of New Mexico (CHE04-43580) for purchase of a Bruker X-ray
diffractometer. Sandia National Laboratories is a multi-program
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
DE-AC04-94AL85000.
NR 31
TC 1
Z9 1
U1 2
U2 4
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0095-8972
EI 1029-0389
J9 J COORD CHEM
JI J. Coord. Chem.
PY 2015
VL 68
IS 9
BP 1616
EP 1632
DI 10.1080/00958972.2015.1028382
PG 17
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA CH5ZC
UT WOS:000354113900012
ER
PT J
AU Bhadra, S
Hertzberg, BJ
Hsieh, AG
Croft, M
Gallaway, JW
Van Tassell, BJ
Chamoun, M
Erdonmez, C
Zhong, Z
Sholklapper, T
Steingart, DA
AF Bhadra, Shoham
Hertzberg, Benjamin J.
Hsieh, Andrew G.
Croft, Mark
Gallaway, Joshua W.
Van Tassell, Barry J.
Chamoun, Mylad
Erdonmez, Can
Zhong, Zhong
Sholklapper, Tal
Steingart, Daniel A.
TI The relationship between coefficient of restitution and state of charge
of zinc alkaline primary LR6 batteries
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID LI-ION BATTERY; ACOUSTIC-EMISSION; CAPACITY FADE; PERFORMANCE; CELLS;
MORPHOLOGY; PARTICLES; EVOLUTION; STRESS; FORCE
AB The coefficient of restitution of alkaline batteries has been shown to increase as a function of depth of discharge. In this work, using non-destructive mechanical testing, the change in coefficient of restitution is compared to in situ energy-dispersive X-ray diffraction data to determine the cause of the macroscopic change in coefficient of restitution. The increase in coefficient of restitution correlates to the formation of a percolation pathway of ZnO within the anode of the cell, and the coefficient of restitution levels off at a value of 0.66 +/- 0.02 at 50% state of charge when the anode has densified into porous ZnO solid. Of note is the sensitivity of coefficient of restitution to the amount of ZnO formation that rivals the sensitivity of in situ energy-dispersive X-ray diffraction.
C1 [Bhadra, Shoham] Princeton Univ, Elect Engn, Princeton, NJ 08540 USA.
[Bhadra, Shoham; Hertzberg, Benjamin J.; Hsieh, Andrew G.; Steingart, Daniel A.] Princeton Univ, Andlinger Ctr Energy & Environm, Princeton, NJ 08540 USA.
[Hertzberg, Benjamin J.; Hsieh, Andrew G.; Steingart, Daniel A.] Princeton Univ, Mech & Aerosp Engn, Princeton, NJ 08540 USA.
[Croft, Mark] Rutgers State Univ, Dept Phys, Piscataway, NJ 08854 USA.
[Gallaway, Joshua W.] CUNY, Energy Inst, New York, NY 10031 USA.
[Van Tassell, Barry J.] CUNY, Dept Chem Engn, New York, NY 10031 USA.
[Chamoun, Mylad; Erdonmez, Can] Brookhaven Natl Lab, Sustainable Technol Div, Upton, NY 11973 USA.
[Zhong, Zhong] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
[Sholklapper, Tal] Voltaiq, Brooklyn, NY 11201 USA.
RP Bhadra, S (reprint author), Princeton Univ, Elect Engn, Princeton, NJ 08540 USA.
FU National Science Foundation [CMMI 1402872]; Department of Energy ARPA-E
RANGE [DE-AR0000400]; Laboratory Directed Research and Development
Program of Brookhaven National Laboratory (LDRD-BNL) [DE-AC02-98CH
10866]; U.S. Department of Energy; U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences [DE-AC02-98CH10886]
FX We are grateful for the patience of the Steingart lab as this work had
to be carried out in a completely silent environment. We also
acknowledge Sonny Moore for his contributions to drop testing in
electro-acoustic applications. This work was performed with financial
support from the National Science Foundation CMMI 1402872, Department of
Energy ARPA-E RANGE DE-AR0000400, and the Laboratory Directed Research
and Development Program of Brookhaven National Laboratory (LDRD-BNL)
under Contract no. DE-AC02-98CH 10866 with the U.S. Department of
Energy. 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. The authors thank Mr. Hassan Albakri for bringing the
change in bounce to our attention.
NR 32
TC 5
Z9 5
U1 3
U2 7
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 18
BP 9395
EP 9400
DI 10.1039/c5ta01576f
PG 6
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CH3JR
UT WOS:000353927500005
ER
PT J
AU Li, H
Yu, XQ
Bai, Y
Wu, F
Wu, C
Liu, LY
Yang, XQ
AF Li, Hui
Yu, Xiqian
Bai, Ying
Wu, Feng
Wu, Chuan
Liu, Liang-Yu
Yang, Xiao-Qing
TI Effects of Mg doping on the remarkably enhanced electrochemical
performance of Na3V2(PO4)(3) cathode materials for sodium ion batteries
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID CARBON-COATED NA3V2(PO4)(3); ENERGY-STORAGE; RATE CAPABILITY; ANODE
MATERIAL; HIGH-CAPACITY; NEGATIVE-ELECTRODE; LITHIUM BATTERIES;
LIFEPO4/C CATHODE; NA; CO
AB Na3V2-xMgx(PO4)(3)/C composites with different Mg2+ doping contents (x = 0, 0.01, 0.03, 0.05, 0.07 and 0.1) were prepared by a facile sol-gel method. The doping effects on the crystal structure were investigated by XRD, XPS and EXAFS. The results show that low dose doping of Mg2+ does not alter the structure of the material, and magnesium is successfully substituted for the vanadium site. The Mg doped Na(3)V(2-x)Mgx(PO4)(3)/C composites exhibit significant improvements on the electrochemical performance in terms of the rate capability and cycle performance, especially for the Na3V1.95Mg0.05(PO4)(3)/C. For example, when the current density increased from 1 C to 30 C, the specific capacity only decreased from 112.5 mA h g(-1) to 94.2 mA h g(-1) showing very good rate capability. Moreover, even cycling at a high rate of 20 C, an excellent capacity retention of 81% is maintained from the initial value of 106.4 mA h g(-1) to 86.2 mA h g(-1) at the 50th cycle. Enhanced rate capability and cycle performance can be attributed to the optimized particle size, structural stability and enhanced ionic and electronic conductivity induced by Mg doping.
C1 [Li, Hui; Bai, Ying; Wu, Feng; Wu, Chuan; Liu, Liang-Yu] Beijing Inst Technol, Sch Chem Engn & Environm, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China.
[Yu, Xiqian; Yang, Xiao-Qing] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Bai, Y (reprint author), Beijing Inst Technol, Sch Chem Engn & Environm, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China.
EM membrane@bit.edu.cn; chuanwu@bit.edu.cn; xyang@bnl.gov
RI wu, chuan/A-1447-2009; Yu, Xiqian/B-5574-2014
OI Yu, Xiqian/0000-0001-8513-518X
FU National Basic Research Program of China [2015CB251100]; Program for New
Century Excellent Talents in University [NCET-12-0047, NCET-13-0033];
State Scholarship Fund of the China Scholarship Council [201406035025];
Office of Vehicle Technologies of the U.S. Department of Energy (DOE)
[DE-AC02-98CH10886]
FX The present work is financially supported by the National Basic Research
Program of China (Grant no. 2015CB251100), and Program for New Century
Excellent Talents in University (Grant no. NCET-12-0047, NCET-13-0033).
Y. Bai acknowledges the support from the State Scholarship Fund (no.
201406035025) of the China Scholarship Council. The work done at
Brookhaven National Laboratory was supported by the Assistant Secretary
for Energy Efficiency and Renewable Energy, Office of Vehicle
Technologies of the U.S. Department of Energy (DOE), under contact no.
DE-AC02-98CH10886. The authors acknowledge the technical support by the
beamline scientist at 9-BM-B of Advanced Photon Source at Argonne
National Laboratory.
NR 58
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U1 19
U2 108
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 18
BP 9578
EP 9586
DI 10.1039/c5ta00277j
PG 9
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CH3JR
UT WOS:000353927500030
ER
PT J
AU Oosterhout, SD
Kopidakis, N
Owczarczyk, ZR
Braunecker, WA
Larsen, RE
Ratcliff, EL
Olson, DC
AF Oosterhout, S. D.
Kopidakis, N.
Owczarczyk, Z. R.
Braunecker, W. A.
Larsen, R. E.
Ratcliff, E. L.
Olson, D. C.
TI Integrating theory, synthesis, spectroscopy and device efficiency to
design and characterize donor materials for organic photovoltaics: a
case study including 12 donors
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID HETEROJUNCTION SOLAR-CELLS; CONJUGATED POLYMERS; MICROWAVE CONDUCTIVITY;
CHARGE SEPARATION; PERFORMANCE; BLENDS; COPOLYMERS;
POLY(3-HEXYLTHIOPHENE); NANOPARTICLES; GENERATION
AB The remarkable improvements in the power conversion efficiency of solution-processable Organic Photovoltaics (OPV) have largely been driven by the development of novel narrow bandgap copolymer donors comprising an electron-donating (D) and an electron-withdrawing (A) group within the repeat unit. Given the large pool of potential D and A units and the laborious processes of chemical synthesis and device optimization, progress on new high efficiency materials can, and has been, slow with a few new efficient copolymers reported every year despite the large number of groups pursuing these materials. In this paper we present an integrated approach toward new narrow bandgap copolymers that uses theory to guide the selection of materials to be synthesized based on their predicted energy levels, and time-resolved microwave conductivity (TRMC) to select the best-performing copolymer-fullerene bulk heterojunction to be incorporated into complete OPV devices. We validate our methodology by using a diverse group of 12 copolymers, including new and literature materials, to demonstrate good correlation between (a) theoretically determined energy levels of polymers and experimentally determined ionization energies and electron affinities and (b) photoconductance, measured by TRMC, and OPV device performance. The materials used here also allow us to explore whether further copolymer design rules need to be incorporated into our methodology for materials selection. For example, we explore the effect of the enthalpy change (Delta H) during exciton dissociation on the efficiency of free charge carrier generation and device efficiency and find that Delta H of -0.4 eV is sufficient for efficient charge generation.
C1 [Oosterhout, S. D.; Kopidakis, N.; Owczarczyk, Z. R.; Braunecker, W. A.; Larsen, R. E.; Olson, D. C.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Ratcliff, E. L.] Univ Arizona, Dept Mat Sci & Engn, Tucson, AZ 85721 USA.
RP Kopidakis, N (reprint author), Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA.
EM nikos.kopidakis@nrel.gov
RI Larsen, Ross/E-4225-2010; Kopidakis, Nikos/N-4777-2015
OI Larsen, Ross/0000-0002-2928-9835;
FU U.S. Department of Energy [DE-AC36-08-GO28038]; National Renewable
Energy Laboratory through the DOE SETP program
FX This work was supported by the U.S. Department of Energy under Contract
no. DE-AC36-08-GO28038 with the National Renewable Energy Laboratory
through the DOE SETP program.
NR 55
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U1 4
U2 19
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 18
BP 9777
EP 9788
DI 10.1039/c5ta01153a
PG 12
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CH3JR
UT WOS:000353927500055
ER
PT J
AU Lee, E
Park, JS
Wu, TP
Sun, CJ
Kim, H
Stair, PC
Lu, J
Zhou, DH
Johnson, CS
AF Lee, Eungje
Park, Joong Sun
Wu, Tianpin
Sun, Cheng-Jun
Kim, Hacksung
Stair, Peter C.
Lu, Jun
Zhou, Dehua
Johnson, Christopher S.
TI Role of Cr3+/Cr6+ redox in chromium-substituted Li2MnO3 center dot
LiNi1/2Mn1/2O2 layered composite cathodes: electrochemistry and voltage
fade
SO JOURNAL OF MATERIALS CHEMISTRY A
LA English
DT Article
ID LITHIUM-ION BATTERIES; OXIDE ELECTRODES; OXYGEN VACANCIES;
LOCAL-STRUCTURE; CO ELECTRODES; IN-SITU; CELLS; LI2MNO3; MN; NI
AB The effect of redox-active Cr substitution on the electrochemistry and voltage fade of a lithium-rich "layered-layered" composite cathode material has been investigated. A series of Cr-substituted 0.5Li(2)MnO(3)center dot 0.5LiNi(1/2)Mn(1/2)O(2) powder samples (i.e., Li1.2Ni0.2-2/xMn0.6-2/xCrxO2, where x = 0, 0.05, 0.1, and 0.2) was synthesized via the sol-gel method. X-ray diffraction data confirmed the incorporation of Cr ions into the lattice structure. While similar initial charge capacities (similar to 300 mA h g(-1)) were obtained for all of the cathode samples, the capacity contribution from the Li2MnO3 activation plateau (at 4.5 V vs. Li) decreased with increasing Cr content. This finding suggests suppressed oxygen loss that triggers cation migration and voltage fade in subsequent cycles. Continued investigation revealed that the Cr substitution mitigates the voltage fade on charge but not discharge. The resulting insignificant effect of Cr substitution on mitigating voltage fade, in spite of decreased Li2MnO3 activation, is attributed to the additional instability caused by Cr6+ migration to a tetrahedral site, as evidenced by ex situ X-ray absorption spectroscopy. Our results provide the framework for a future redox active cation substitution strategy by highlighting the importance of the structural stability of the substituent itself.
C1 [Lee, Eungje; Park, Joong Sun; Kim, Hacksung; Stair, Peter C.; Lu, Jun; Zhou, Dehua; Johnson, Christopher S.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Wu, Tianpin; Sun, Cheng-Jun] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Kim, Hacksung; Stair, Peter C.] Northwestern Univ, Catalysis Ctr, Evanston, IL 60208 USA.
[Zhou, Dehua] Univ Rochester, Dept Chem Engn, Rochester, NY 14627 USA.
RP Lee, E (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM eungje.lee@anl.gov
FU Vehicle Technologies Program, Hybrid and Electric Systems; US Department
of Energy - Basic Energy Sciences; Canadian Light Source; U.S. DOE
[DE-AC02-06CH11357]; U.S. Department of Energy Office of Science
laboratory [DE-AC02-06CH11357]
FX Support from the Vehicle Technologies Program, Hybrid and Electric
Systems, in particular, David Howell, Tien Duong, and Peter Faguy, at
the U.S. Department of Energy, Office of Energy Efficiency and Renewable
Energy is gratefully acknowledged. Sector 20 facilities at the Advanced
Photon Source, and research at these facilities, are supported by the US
Department of Energy - Basic Energy Sciences, the Canadian Light Source
and its funding partners, the University of Washington, and the Advanced
Photon Source. Use of the Advanced Photon Source, an Office of Science
User Facility operated for the U.S. Department of Energy (DOE) Office of
Science by Argonne National Laboratory, was supported by the U.S. DOE
under Contract no. DE-AC02-06CH11357. The submitted manuscript has been
created by UChicago Argonne, LLC, Operator of Argonne National
Laboratory ("Argonne"). Argonne, a U.S. Department of Energy Office of
Science laboratory, is operated under Contract no. DE-AC02-06CH11357.
NR 34
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U1 4
U2 43
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2050-7488
EI 2050-7496
J9 J MATER CHEM A
JI J. Mater. Chem. A
PY 2015
VL 3
IS 18
BP 9915
EP 9924
DI 10.1039/c5ta01214g
PG 10
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary
SC Chemistry; Energy & Fuels; Materials Science
GA CH3JR
UT WOS:000353927500070
ER
PT J
AU Sun, J
Fu, JS
Huang, K
Gao, Y
AF Sun, Jian
Fu, Joshua S.
Huang, Kan
Gao, Yang
TI Estimation of future PM2.5- and ozone-related mortality over the
continental United States in a changing climate: An application of
high-resolution dynamical downscaling technique
SO JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
LA English
DT Article
ID REPRESENTATIVE CONCENTRATION PATHWAYS; PARTICULATE AIR-POLLUTION;
TROPOSPHERIC OZONE; HEALTH IMPACTS; AMBIENT OZONE; US; EXPOSURE;
EMISSIONS; BENEFITS; QUALITY
AB This paper evaluates the PM2.5- and ozone-related mortality at present (2000s) and in the future (2050s) over the continental United States by using the Environmental Benefits Mapping and Analysis Program (BenMAP-CE). Atmospheric chemical fields are simulated by WRF/CMAQ (horizontal resolution: 12 x 12km), applying the dynamical downscaling technique from global climate-chemistry model under the Representative Concentration Pathways scenario (RCP 8.5). Future air quality results predict that the annual mean PM2.5 concentration in continental U.S. decreases nationwide, especially in the Eastern U.S. and west coast. However, the ozone concentration is projected to decrease in the Eastern U.S. but increase in the Western U.S. Future mortality is evaluated under two scenarios (1) holding future population and baseline incidence rate at the present level and (2) using the projected baseline incidence rate and population in 2050. For PM2.5, the entire continental U.S. presents a decreasing trend of PM2.5-related mortality by the 2050s in Scenario (1), primarily resulting from the emissions reduction. While in Scenario (2), almost half of the continental states show a rising tendency of PM2.5-related mortality, due to the dominant influence of population growth. In particular, the highest PM2.5-related deaths and the biggest discrepancy between present and future PM2.5-related deaths both occur in California in 2050s. For the ozone-related premature mortality, the simulation shows nation-wide rising tendency in 2050s under both scenarios, mainly due to the increase of ozone concentration and population in the future. Furthermore, the uncertainty analysis shows that the confidence interval of all causes mortality is much larger than that for specific causes, probably due to the accumulated uncertainty of generating datasets and sample size. The confidence interval of ozone-related all cause premature mortality is narrower than the PM2.5-related all cause mortality, due to its smaller standard deviation of the concentration-mortality response factor.Implications:The health impact of PM2.5 is more linearly proportional to the emission reductions than ozone. The reduction of anthropogenic PM2.5 precursor emissions is likely to lead to the decrease of PM2.5 concentrations and PM2.5 related mortality. However, the future ozone concentrations could increase due to increase of the greenhouse gas emissions of methane. Thus, to reduce the impact of ozone related mortality, anthropogenic emissions including criteria pollutant and greenhouse gas (i.e. methane) need to be controlled.
C1 [Sun, Jian; Fu, Joshua S.; Huang, Kan] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA.
[Gao, Yang] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA.
RP Fu, JS (reprint author), Univ Tennessee, Dept Civil & Environm Engn, 416 John D Tickle Bldg, Knoxville, TN 37996 USA.
EM jsfu@utk.edu
RI Huang, Kan/E-4824-2011
FU Office of Science of the U.S. Department of Energy [DE-AC05-00OR22725];
U.S. Department of Energy Office of Science Biological and Environmental
Research (BER) as part of the Regional and Global Climate Modeling
program; DOE by Battelle Memorial Institute [DE-AC05-76RL01830]
FX Model simulations of this research were partially supported by the
National Science Foundation through TeraGrid resources provided by the
National Institute for Computational Science (NICS) (TG-ATM110009 and
UT-TENN0006). It also used resources of the Oak Ridge Leadership
Computing Facility at the Oak Ridge National Laboratory, which is
supported by the Office of Science of the U.S. Department of Energy
(contract DE-AC05-00OR22725). Yang Gao was supported in part by the U.S.
Department of Energy Office of Science Biological and Environmental
Research (BER) as part of the Regional and Global Climate Modeling
program. PNNL is operated for DOE by Battelle Memorial Institute under
contract DE-AC05-76RL01830.
NR 59
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U1 4
U2 25
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 1096-2247
EI 2162-2906
J9 J AIR WASTE MANAGE
JI J. Air Waste Manage. Assoc.
PY 2015
VL 65
IS 5
BP 611
EP 623
DI 10.1080/10962247.2015.1033068
PG 13
WC Engineering, Environmental; Environmental Sciences; Meteorology &
Atmospheric Sciences
SC Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric
Sciences
GA CH5AU
UT WOS:000354047100012
PM 25947319
ER
PT S
AU Boncher, WL
Judge, E
Sansinena, JM
Dirmyer, MR
Hehlen, MP
AF Boncher, William L.
Judge, Elizabeth
Sansinena, Jose-Maria
Dirmyer, Matthew R.
Hehlen, Markus P.
BE Epstein, RI
Seletskiy, DV
SheikBahae, M
TI Purification of precursors of Yb3+-doped YLF crystals by solvent
extraction and electrochemical processing
SO LASER REFRIGERATION OF SOLIDS VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Refrigeration of Solids VIII
CY FEB 11-12, 2015
CL San Francisco, CA
SP SPIE
DE laser cooling; optical refrigeration; YLF:Yb; electrochemical
purification
AB Optical refrigeration by laser irradiation of YLiF4:Yb3+ (YLF:Yb) crystals has been shown to be strongly deteriorated by impurities, which absorb energy at the laser wavelength, and relax non-radiatively, negating cooling produced from anti-Stokes fluorescence. We aim to increase the efficiency of optical refrigeration through materials purification. We start with the purest sources commercially available and process them in a cleanroom environment. Our method proceeds through electrochemical purification, separating out the transition metal impurities by their redox potentials, and can be scaled up to produce the amounts of material needed for crystal growth.
C1 [Boncher, William L.; Hehlen, Markus P.] Los Alamos Natl Lab, Mat Sci & Technol MST7, Los Alamos, NM 87545 USA.
[Judge, Elizabeth; Sansinena, Jose-Maria; Dirmyer, Matthew R.] Los Alamos Natl Lab, Chem Diagnost & Engn, Los Alamos, NM 87545 USA.
RP Boncher, WL (reprint author), Los Alamos Natl Lab, Mat Sci & Technol MST7, POB 1663,MS E549, Los Alamos, NM 87545 USA.
OI Judge, Elizabeth/0000-0002-2747-1326
NR 4
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-470-7
J9 PROC SPIE
PY 2015
VL 9380
AR 938004
DI 10.1117/12.2077235
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6AI
UT WOS:000353692500003
ER
PT S
AU Ghasemkhani, M
Albrecht, AR
Melgaard, SD
Seletskiy, DV
Cederberg, JG
Sheik-Bahae, M
AF Ghasemkhani, Mohammadreza
Albrecht, Alexander R.
Melgaard, Seth D.
Seletskiy, Denis V.
Cederberg, Jeffrey G.
Sheik-Bahae, Mansoor
BE Epstein, RI
Seletskiy, DV
SheikBahae, M
TI Intra-cavity-enhanced optical refrigeration of Yb:YLF crystal to
cryogenic temperatures
SO LASER REFRIGERATION OF SOLIDS VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Refrigeration of Solids VIII
CY FEB 11-12, 2015
CL San Francisco, CA
SP SPIE
DE Anti-Stokes fluorescence; laser cooling of solids; vertical
external-cavity surface-emitting lasers; coupled-cavities; Fabry-Perot
cavity
ID SURFACE-EMITTING LASERS; POWER
AB Laser cooling of solids has great potential to achieve an all-solid-state optical cryo-cooler. The advantages of compactness, no vibrations, no moving parts or fluids, and high reliability have motivated intensive research. Increasing the pump power absorption is essential to reach lower temperatures. Here, using a high power broadly tunable InGaAs/GaAs vertical external-cavity surface-emitting laser (VECSEL) we demonstrate how we have increased the pump power absorption in an intra-cavity geometry cooling a 10% Yb:YLF crystal. We also discuss the progress, advantages, and challenges of laser cooling inside a VECSEL cavity, including the VECSEL active region design, cavity design, and cooling sample choice for optimal cooling. A novel method to increase the absorption of the pump power in the crystal has also been proposed.
C1 [Ghasemkhani, Mohammadreza; Albrecht, Alexander R.; Melgaard, Seth D.; Seletskiy, Denis V.; Sheik-Bahae, Mansoor] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Melgaard, Seth D.] US Air Force, Res Lab, Space Vehicles Directorate, Kirtland AFB, NM 87117 USA.
[Cederberg, Jeffrey G.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Seletskiy, Denis V.] Univ Konstanz, Dept Phys, Constance, Germany.
[Seletskiy, Denis V.] Univ Konstanz, Ctr Appl Photon, Constance, Germany.
RP Ghasemkhani, M (reprint author), Univ New Mexico, Dept Phys & Astron, 1919 Lomas Blvd NE MSC 07-4220, Albuquerque, NM 87131 USA.
NR 18
TC 2
Z9 2
U1 4
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-470-7
J9 PROC SPIE
PY 2015
VL 9380
AR 938003
DI 10.1117/12.2080343
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6AI
UT WOS:000353692500002
ER
PT S
AU Hehlen, MP
Boncher, WL
Love, SP
AF Hehlen, Markus P.
Boncher, William L.
Love, Steven P.
BE Epstein, RI
Seletskiy, DV
SheikBahae, M
TI Design study of a laser-cooled infrared sensor
SO LASER REFRIGERATION OF SOLIDS VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Refrigeration of Solids VIII
CY FEB 11-12, 2015
CL San Francisco, CA
SP SPIE
DE Solid-state optical refrigeration; cryogenic laser cooling; infrared
detector; ray tracing
AB The performance of a solid-state optical refrigerator is the result of a complex interplay of numerous optical and thermal parameters. We present a first preliminary study of an optical cryocooler using ray-tracing techniques. A numerical optimization identified a non-resonant cavity with astigmatism. This geometry offered more efficient pump absorption by the YLF: 10%Yb laser-cooling crystal compared to non-resonant cavities without astigmatism that have been pursued experimentally so far. Ray tracing simulations indicate that similar to 80% of the incident pump light can absorbed for temperatures down to similar to 100 K. Calculations of heat loads, cooling power, and net payload heat lift are presented. They show that it is possible to cool a payload to a range of 90-100 K while producing a net payload heat lift of 80 mW and 300 mW when pumping a YLF: 10%Yb crystal with 20 W and 50 W at 1020 nm, respectively. This performance is suited to cool HgCdTe infrared detectors that are used for sensing in the 8-12 mu m atmospheric window. While the detector noise would be similar to 6x greater at 100 K than at 77 K, the laser refrigerator would introduce no vibrations and thus eliminate sources of microphonic noise that are limiting the performance of current systems.
C1 [Hehlen, Markus P.; Boncher, William L.; Love, Steven P.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Hehlen, MP (reprint author), Los Alamos Natl Lab, Mailstop E549, Los Alamos, NM 87545 USA.
OI Love, Steven/0000-0003-0588-9622
NR 17
TC 1
Z9 1
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-470-7
J9 PROC SPIE
PY 2015
VL 9380
AR 93800I
DI 10.1117/12.2077846
PG 15
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6AI
UT WOS:000353692500009
ER
PT S
AU Roder, PB
Smith, BE
Zhou, XZ
Crane, MJ
Pauzauskie, PJ
AF Roder, Paden B.
Smith, Bennett E.
Zhou, Xuezhe
Crane, Matt J.
Pauzauskie, Peter J.
BE Epstein, RI
Seletskiy, DV
SheikBahae, M
TI Laser refrigeration of rare-earth-doped nanocrystals in water
SO LASER REFRIGERATION OF SOLIDS VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Laser Refrigeration of Solids VIII
CY FEB 11-12, 2015
CL San Francisco, CA
SP SPIE
DE laser trapping; temperature sensing; nanoparticle laser refrigeration
ID OPTICAL TWEEZERS; NANOPARTICLES; PRESSURE; MANIPULATION; RADIATION;
CELLS; LIGHT; SEMICONDUCTOR; THERMOMETRY; PARTICLES
AB Single-beam laser-tweezers have been demonstrated over the past several decades to confine nanometer-scale particles in three dimensions with sufficient sensitivity to measure the spring constants of individual biological macromolecules including DNA. Large laser-irradiance values (on the order of MW/cm2) commonly are used to generate laser traps which can lead to significant laser-heating within the 3D optical potential well. To date, laser-refrigeration of particles within an aqueous medium has not been reported stemming primarily from the large near-infrared (NIR) optical absorption coefficient of liquid water (0.2 cm-1 at lambda = 1020nm). In this paper we will detail the methods on how single-beam laser-traps can be used to induce and quantify the refrigeration of optically trapped nanocrystals in an aqueous medium. Analysis of the Brownian dynamics of individual nanocrystals via forward light scattering provides a way to determine both a relative and absolute measurement of particle's temperature. Signal analysis considerations to interpreting Brownian motion data of trapped particles in nonisothermal aqueous environments, or so-called hot Brownian motion, are detailed. Applications of these methods to determining local laser-refrigeration of laser trapped nanoparticles in water show promise at realizing the first observation of particles undergoing cold Brownian motion.
C1 [Roder, Paden B.; Zhou, Xuezhe; Pauzauskie, Peter J.] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA.
[Smith, Bennett E.] Univ Washington, Dept Chem, Seattle, WA 98195 USA.
[Crane, Matt J.] Univ Washington, Dept Chem Engn, Seattle, WA 98195 USA.
[Pauzauskie, Peter J.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99354 USA.
RP Roder, PB (reprint author), Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA.
EM peterpz@uw.edu
NR 45
TC 0
Z9 0
U1 0
U2 8
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-470-7
J9 PROC SPIE
PY 2015
VL 9380
AR 938007
DI 10.1117/12.2080356
PG 9
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BC6AI
UT WOS:000353692500004
ER
PT J
AU Ristova, MM
Milun, M
Pejova, B
AF Ristova, Mimoza M.
Milun, Milorad
Pejova, Biljana
TI SURFACE ANALYSIS OF ELECTROCHROMIC CuxO FILMS IN THEIR COLORED AND
BLEACHED STATES
SO MATERIALI IN TEHNOLOGIJE
LA English
DT Article
DE electrochromism; Cu2O; CuO; XPS; XRD; SEM; AFM
ID CUPROUS-OXIDE FILMS; OPTICAL-PROPERTIES; SOLAR APPLICATIONS; THIN-FILMS;
CU2O; DEPOSITION; CELLS
AB CuxO is known as an electrochromic material with a possible applicability for solar-light modulation. The reversible transition between the two different oxidation states, CuO and Cu2O, is responsible for the visible-light switching ability. CuxO films in their as-prepared, colored and bleached states were subjected to a surface analysis in order to relate the bleaching/coloring effects to the quantified Cu-oxide transition. An XPS analysis on the Cu2p electrons of the as-prepared, bleached and colored films showed that the Cu-ion quantity reversibly turning from CuO to Cu2O during the electrochromic cycling was about 3.4 %. An analysis of the XRD patterns of the film's three states confirmed that a small portion of the surface Cu-atoms probably participate in the coloration/bleaching process. Scanning electron microscopy (SEM) images revealed obvious changes in the surface morphology due to bleaching and coloration transitions, particularly in the grain size and porosity of the CuxO films. The surface morphology of the films was also studied with the atomic force microscopy (AFM). This technique allowed significant conclusions to be derived relating to the surface roughness as well as the compositional homogeneity of the films before and after electrochemical treatments. These results appeared to be complementary to those derived from the X-ray diffraction patterns. One may assume that the coloration centers are located at very few film's monolayers of the interface with the electrolyte.
C1 [Ristova, Mimoza M.] Inst Phys, Fac Nat Sci & Math, Skopje, Macedonia.
[Ristova, Mimoza M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Milun, Milorad] Univ Zagreb, Inst Phys, Zagreb, Croatia.
[Pejova, Biljana] Inst Chem, Fac Nat Sci & Math, Skopje, Macedonia.
RP Ristova, MM (reprint author), Inst Phys, Fac Nat Sci & Math, POB 162, Skopje, Macedonia.
EM mima.ristova@gmail.com
NR 25
TC 0
Z9 0
U1 4
U2 14
PU INST ZA KOVINSKE MATERIALE I IN TEHNOLOGIE
PI LJUBJANA
PA LEPI POT 11, LJUBJANA, 10000, SLOVENIA
SN 1580-2949
EI 1580-3414
J9 MATER TEHNOL
JI Mater. Tehnol.
PY 2015
VL 49
IS 3
BP 387
EP 393
DI 10.17222/mit.2014.092
PG 7
WC Materials Science, Multidisciplinary
SC Materials Science
GA CH4QT
UT WOS:000354018700011
ER
PT J
AU Wang, H
Cao, GX
Gai, Z
Hong, KL
Banerjee, P
Zhou, SQ
AF Wang, Hui
Cao, Guixin
Gai, Zheng
Hong, Kunlun
Banerjee, Probal
Zhou, Shuiqin
TI Magnetic/NIR-responsive drug carrier, multicolor cell imaging, and
enhanced photothermal therapy of gold capped magnetite-fluorescent
carbon hybrid nanoparticles
SO NANOSCALE
LA English
DT Article
ID NEAR-INFRARED LIGHT; SHELL NANOPARTICLES; CONTROLLED-RELEASE; AG
NANOCUBES; IN-VITRO; DELIVERY; NANOTUBES; DOTS; TEMPERATURE; GRAPHENE
AB This paper reports a type of multifunctional hybrid nanoparticle (NP) composed of gold nanocrystals coated on and/or embedded in a magnetite-fluorescent porous carbon core-shell NP template (Fe3O4@PC-CDs-Au) for biomedical applications, including magnetic/NIR-responsive drug release, multicolor cell imaging, and enhanced photothermal therapy. The synthesis of the Fe3O4@PC-CDs-Au NPs firstly involves the preparation of core-shell template NPs with magnetite nanocrystals clustered in the cores and fluorescent carbon dots (CDs) embedded in a porous carbon shell, followed by an in situ reduction of silver ions (Ag+) loaded in the porous carbon shell and a subsequent replacement of Ag NPs with Au NPs through a galvanic replacement reaction using HAuCl4 as a precursor. The Fe3O4@PC-CDsAu NPs can enter the intracellular region and light up mouse melanoma B16F10 cells in multicolor mode. The porous carbon shell, anchored with hydrophilic hydroxyl/carboxyl groups, endows the Fe3O4@PC-CDs-Au NPs with excellent stability in the aqueous phase and a high loading capacity (719 mg g(-1)) for the anti-cancer drug doxorubicin (DOX). The superparamagnetic Fe3O4@PC-CDs-Au NPs with a saturation magnetization of 23.26 emu g(-1) produce localized heat under an alternating magnetic field, which triggers the release of the loaded drug. The combined photothermal effects of the Au nanocrystals and the CDs on/in the carbon shell can not only regulate the release rate of the loaded drug, but also efficiently kill tumor cells under NIR irradiation. Benefitting from their excellent optical properties, their magnetic field and NIR light-responsive drug release capabilities and their enhanced photothermal effect, such nanostructured Fe3O4@PC-CDs-Au hybrid NPs are very promising for simultaneous imaging diagnostics and high efficacy therapy.
C1 [Wang, Hui; Banerjee, Probal; Zhou, Shuiqin] CUNY Coll Staten Isl, Dept Chem, Staten Isl, NY 10314 USA.
[Wang, Hui; Banerjee, Probal; Zhou, Shuiqin] CUNY, Grad Ctr, Staten Isl, NY 10314 USA.
[Cao, Guixin; Gai, Zheng; Hong, Kunlun] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Cao, Guixin; Gai, Zheng; Hong, Kunlun] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Zhou, SQ (reprint author), CUNY Coll Staten Isl, Dept Chem, Staten Isl, NY 10314 USA.
EM shuiqin.zhou@csi.cuny.edu
RI wang, hui/G-6433-2015; Cao, Guixin/G-4452-2015; Gai, Zheng/B-5327-2012;
Hong, Kunlun/E-9787-2015
OI Cao, Guixin/0000-0002-9252-1158; Gai, Zheng/0000-0002-6099-4559; Hong,
Kunlun/0000-0002-2852-5111
FU American Diabetes Association [1-12-BS-243]; PSC-CUNY Research Award
[66076-00 44]; Scientific User Facilities Division, Office of Basic
Energy Sciences, U.S. Department of Energy
FX We gratefully acknowledge the financial support from the American
Diabetes Association (Basic Science Award 1-12-BS-243) and PSC-CUNY
Research Award (66076-00 44). A portion of this research was conducted
at the Center for Nanophase Materials Sciences, which is sponsored at
Oak Ridge National Laboratory by the Scientific User Facilities
Division, Office of Basic Energy Sciences, U.S. Department of Energy.
NR 62
TC 14
Z9 14
U1 17
U2 160
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 17
BP 7885
EP 7895
DI 10.1039/c4nr07335e
PG 11
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CH4DI
UT WOS:000353981700046
PM 25854197
ER
PT J
AU Wang, J
Zhou, MJ
Tan, GQ
Chen, S
Wu, F
Lu, J
Amine, K
AF Wang, Jing
Zhou, Meijuan
Tan, Guoqiang
Chen, Shi
Wu, Feng
Lu, Jun
Amine, Khalil
TI Encapsulating micro-nano Si/SiOx into conjugated nitrogen-doped carbon
as binder-free monolithic anodes for advanced lithium ion batteries
SO NANOSCALE
LA English
DT Article
ID ELECTROCHEMICAL PERFORMANCE; SIO ANODE; COMPOSITE; SILICON;
NANOCOMPOSITE; CAPACITY; STORAGE; CAPABILITY; REDUCTION; CATHODE
AB Silicon monoxide, a promising silicon-based anode candidate for lithium-ion batteries, has recently attracted much attention for its high theoretical capacity, good cycle stability, low cost, and environmental benignity. Currently, the most critical challenge is to improve its low initial coulombic efficiency and significant volume changes during the charge-discharge processes. Herein, we report a binder-free monolithic electrode structure based on directly encapsulating micro-nano Si/SiOx particles into conjugated nitrogen-doped carbon frameworks to form monolithic, multi-core, cross-linking composite matrices. We utilize micro-nano Si/SiOx reduced by high-energy ball-milling SiO as active materials, and conjugated nitrogen-doped carbon formed by the pyrolysis of polyacrylonitrile both as binders and conductive agents. Owing to the high electrochemical activity of Si/SiOx and the good mechanical resiliency of conjugated nitrogen-doped carbon backbones, this specific composite structure enhances the utilization efficiency of SiO and accommodates its large volume expansion, as well as its good ionic and electronic conductivity. The annealed Si/SiOx/polyacrylonitrile composite electrode exhibits excellent electrochemical properties, including a high initial reversible capacity (2734 mA h g(-1) with 75% coulombic efficiency), stable cycle performance (988 mA h g(-1) after 100 cycles), and good rate capability (800 mA h g(-1) at 1 A g(-1) rate). Because the composite is naturally abundant and shows such excellent electrochemical performance, it is a promising anode candidate material for lithium-ion batteries. The binder-free monolithic architectural design also provides an effective way to prepare other monolithic electrode materials for advanced lithium-ion batteries.
C1 [Wang, Jing; Zhou, Meijuan; Tan, Guoqiang; Chen, Shi; Wu, Feng] Beijing Inst Technol, Sch Chem Engn & Environm, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China.
[Wang, Jing; Wu, Feng] Natl Dev Ctr High Technol Green Mat, Beijing 100081, Peoples R China.
[Lu, Jun; Amine, Khalil] Argonne Natl Lab, Chem Sci & Engn Div, Lemont, IL 60439 USA.
RP Tan, GQ (reprint author), Beijing Inst Technol, Sch Chem Engn & Environm, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China.
EM tgq1123@sina.cn; wufeng863@bit.edu.cn; junlu@anl.gov
FU Special fund of Beijing Co-construction Project; National Natural
Science Foundation of China [2113011]; National High-tech 863 Program
[2011AA11A234]; Beijing Institute of Technology [20131042008]; U.S.
Department of Energy [DE-AC0206CH11357]
FX This work was financially supported by the Special fund of Beijing
Co-construction Project, National Natural Science Foundation of China
(grant no. 2113011), National High-tech 863 Program (grant no.
2011AA11A234), and Beijing Institute of Technology funding
(20131042008). This work was also supported by the U.S. Department of
Energy under Contract DE-AC0206CH11357 with the main support provided by
the Vehicle Technologies Office, Department of Energy (DOE) Office of
Energy Efficiency and Renewable Energy (EERE).
NR 46
TC 14
Z9 14
U1 24
U2 128
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 17
BP 8023
EP 8034
DI 10.1039/c5nr01209k
PG 12
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CH4DI
UT WOS:000353981700061
PM 25865463
ER
PT J
AU Prasai, B
Ren, Y
Shan, SY
Zhao, YG
Cronk, H
Luo, J
Zhong, CJ
Petkov, V
AF Prasai, Binay
Ren, Yang
Shan, Shiyao
Zhao, Yinguang
Cronk, Hannah
Luo, Jin
Zhong, Chuan-Jian
Petkov, Valeri
TI Synthesis-atomic structure-properties relationships in metallic
nanoparticles by total scattering experiments and 3D computer
simulations: case of Pt-Ru nanoalloy catalysts
SO NANOSCALE
LA English
DT Article
ID FINNIS-SINCLAIR POTENTIALS; CORE-SHELL NANOPARTICLES; FUEL-CELL
CATALYSTS; X-RAY-DIFFRACTION; CARBON-MONOXIDE; ETHANOL ELECTROOXIDATION;
INTERMETALLIC COMPOUNDS; MAGNETIC NANOPARTICLES; SURFACE SEGREGATION;
OXIDATION
AB An approach to determining the 3D atomic structure of metallic nanoparticles (NPs) in fine detail and using the unique knowledge obtained for rationalizing their synthesis and properties targeted for optimization is described and exemplified on Pt-Ru alloy NPs of importance to the development of devices for clean energy conversion such as fuel cells. In particular, PtxRu100-x alloy NPs, where x = 31, 49 and 75, are synthesized by wet chemistry and activated catalytically by a post-synthesis treatment involving heating under controlled N-2-H-2 atmosphere. So-activated NPs are evaluated as catalysts for gas-phase CO oxidation and ethanol electro-oxidation reactions taking place in fuel cells. Both as-synthesized and activated NPs are characterized structurally by total scattering experiments involving high-energy synchrotron X-ray diffraction coupled to atomic pair distribution functions (PDFs) analysis. 3D structure models both for as-synthesized and activated NPs are built by molecular dynamics simulations based on the archetypal for current theoretical modelling Sutton-Chen method. Models are refined against the experimental PDF data by reverse Monte Carlo simulations and analysed in terms of prime structural characteristics such as metal-to-metal bond lengths, bond angles and first coordination numbers for Pt and Ru atoms. Analysis indicates that, though of a similar type, the atomic structure of as-synthesized and respective activated NPs differ in several details of importance to NP catalytic properties. Structural characteristics of activated NPs and data for their catalytic activity are compared side by side and strong evidence found that electronic effects, indicated by significant changes in Pt-Pt and Ru-Ru metal bond lengths at NP surface, and practically unrecognized so far atomic ensemble effects, indicated by distinct stacking of atomic layers near NP surface and prevalence of particular configurations of Pt and Ru atoms in these layers, contribute to the observed enhancement of the catalytic activity of PtxRu100-x alloy NPs at x similar to 50. Implications of so-established relationships between the atomic structure and catalytic activity of Pt-Ru alloy NPs on efforts aimed at improving further the latter by tuning-up the former are discussed and the usefulness of detailed NP structure studies to advancing science and technology of metallic NPs - exemplified.
C1 [Prasai, Binay; Petkov, Valeri] Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48858 USA.
[Ren, Yang] Argonne Natl Lab, Xray Sci Div, Adv Photon Source, Argonne, IL 60439 USA.
[Shan, Shiyao; Zhao, Yinguang; Cronk, Hannah; Luo, Jin; Zhong, Chuan-Jian] SUNY Binghamton, Dept Chem, Binghamton, NY 13902 USA.
RP Petkov, V (reprint author), Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48858 USA.
EM petko1vg@cmich.edu
RI Zhong, Chuan-Jian/D-3394-2013
FU DOE-BES [DE-SC0006877]; DOE [DEAC02-06CH11357]
FX Work on this paper was supported by DOE-BES Grant DE-SC0006877. Work at
the Advanced Photon Source was supported by DOE under Contract
DEAC02-06CH11357.
NR 82
TC 7
Z9 7
U1 11
U2 50
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
EI 2040-3372
J9 NANOSCALE
JI Nanoscale
PY 2015
VL 7
IS 17
BP 8122
EP 8134
DI 10.1039/c5nr00800j
PG 13
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CH4DI
UT WOS:000353981700073
PM 25874741
ER
PT S
AU Merkle, LD
Zhang, J
Allen, G
Dawson, JW
Dubinskii, M
AF Merkle, Larry D.
Zhang, Jun
Allen, Graham
Dawson, Jay W.
Dubinskii, Mark
BE Jiang, S
Digonnet, MJF
TI Raman Gain of SiC as a Potential Medium for Raman Lasers
SO OPTICAL COMPONENTS AND MATERIALS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Optical Components and Materials XII
CY FEB 09-11, 2015
CL San Francisco, CA
SP SPIE
DE Raman gain; Raman laser; SiC
ID POLYTYPES
AB We have investigated stimulated Raman scattering in the 4H polytype of SiC, due to its excellent thermal conductivity which is of great importance for power scaling of Raman lasers. Spectroscopy verifies the sample's polytype and precludes any significant admixture of other polytypes. Tests indicate the moderate optical quality of this commercially available sample. Using pump-probe measurements around 1030 nm, we find the Raman gain coefficient of the major peak at 777 cm(-1) to be 0.46 cm/GW. Although this value is only modest, calculations and experience with other Raman materials indicate that Raman lasing of 4H SiC should be possible with reasonable intensities of 1064-nm pulsed pumping.
C1 [Merkle, Larry D.; Zhang, Jun; Dubinskii, Mark] RDRL SEE L, Army Res Lab, Adelphi, MD 20783 USA.
[Allen, Graham; Dawson, Jay W.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Merkle, LD (reprint author), RDRL SEE L, Army Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM larry.d.merkle.civ@mail.mil
NR 8
TC 0
Z9 0
U1 1
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-449-3
J9 PROC SPIE
PY 2015
VL 9359
AR 935904
DI 10.1117/12.2077299
PG 6
WC Materials Science, Multidisciplinary; Optics
SC Materials Science; Optics
GA BC6OT
UT WOS:000354268500003
ER
PT J
AU Bao, Y
Martin, RL
Haranczyk, M
Deem, MW
AF Bao, Yi
Martin, Richard L.
Haranczyk, Maciej
Deem, Michael W.
TI In silico prediction of MOFs with high deliverable capacity or internal
surface area
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID METAL-ORGANIC FRAMEWORKS; STRUCTURE-DIRECTING AGENTS; HYDROGEN STORAGE;
INDUSTRIAL APPLICATIONS; METHANE STORAGE; GAS-STORAGE; DESIGN;
CHEMISTRY; SEPARATIONS; MOLECULES
AB Metal-organic frameworks (MOFs) offer unprecedented atom-scale design and structural tunability, largely due to the vast number of possible organic linkers which can be utilized in their assembly. Exploration of this space of linkers allows identification of ranges of achievable material properties as well as discovery of optimal materials for a given application. Experimental exploration of the linker space has to date been quite limited due to the cost and complexity of synthesis, while high-throughput computational studies have mainly explored MOF materials based on known or readily available linkers. Here an evolutionary algorithm for de novo design of organic linkers for metal-organic frameworks is used to predict MOFs with either high methane deliverable capacity or methane accessible surface area. Known chemical reactions are applied in silico to a population of linkers to discover these MOFs. Through this design strategy, MOF candidates are found in the ten symmetric networks acs, cds, dia, hxg, lvt, nbo, pcu, rhr, sod, and tbo. The correlation between deliverable capacities and surface area is network dependent.
C1 [Bao, Yi; Deem, Michael W.] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA.
[Martin, Richard L.; Haranczyk, Maciej] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
[Deem, Michael W.] Rice Univ, Dept Bioengn, Houston, TX 77005 USA.
[Deem, Michael W.] Rice Univ, Grad Program Syst Synthet & Phys Biol, Houston, TX 77005 USA.
RP Deem, MW (reprint author), Rice Univ, Dept Phys & Astron, 6100 Main St,MS-61, Houston, TX 77005 USA.
EM mwdeem@rice.edu
RI Haranczyk, Maciej/A-6380-2014; Bao, Yi/M-2426-2015; Deem,
Michael/P-3595-2014
OI Haranczyk, Maciej/0000-0001-7146-9568; Bao, Yi/0000-0002-8882-7891;
Deem, Michael/0000-0002-4298-3450
FU Office of Basic Sciences of the US Department of Energy
[DE-FG02-12ER16362, DE-FG02-03ER15456]
FX We thank Frits Daeyaert and Wendy L. Queen for useful discussion. This
research was supported by the Office of Basic Sciences of the US
Department of Energy under grants DE-FG02-12ER16362 and
DE-FG02-03ER15456.
NR 43
TC 7
Z9 7
U1 0
U2 16
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 18
BP 11962
EP 11973
DI 10.1039/c5cp00002e
PG 12
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CH1FV
UT WOS:000353767500005
PM 25716343
ER
PT J
AU Zhang, XW
Lin, SB
Lin, T
Zhang, P
Xu, J
Xu, L
Chen, KJ
AF Zhang, Xiaowei
Lin, Shaobing
Lin, Tao
Zhang, Pei
Xu, Jun
Xu, Ling
Chen, Kunji
TI Improved sensitization efficiency in Er3+ ions and SnO2 nanocrystals
co-doped silica thin films
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID RESONANCE ENERGY-TRANSFER; MU-M PHOTOLUMINESCENCE; INFRARED-EMISSION;
UP-CONVERSION; COMPOSITES
AB Er3+ ions and SnO2 nanocrystals co-doped silica thin films are prepared by an improved sol-gel spin-coating method. With increase in annealing temperature, the related 1.54 mm characteristic emission intensity from Er3+ ions is obviously enhanced by more than two orders of magnitude via SnO2 nanocrystals size control to boost the sensitization efficiency. Quantitative studies of steady-state spectroscopic data and fluorescence decay curves demonstrate that the related sensitization efficiency via size-tunable nanocrystals is increased from 0.14% to 1.3%. This improved sensitization efficiency is achieved by doping some of the Er3+ ions into the SnO2 inner sites at a high annealing temperature, as revealed by high-resolution TEM, X-ray diffraction patterns and elemental mapping technique. Different sensitization mechanisms are also discussed separately according to the selective photoluminescence excitation measurements. All these results have not only explained the greatly improved sensitization efficiency resulting from SnO2 nanocrystals but also indicated that the development of Er3+ ions and SnO2 nanocrystals co-doped silica thin films could result in promising high-performance near-infrared luminous materials using broadband UV pumping.
C1 [Zhang, Xiaowei; Lin, Shaobing; Lin, Tao; Zhang, Pei; Xu, Jun; Xu, Ling; Chen, Kunji] Nanjing Univ, Natl Lab Solid State Microstruct, Sch Elect Sci & Engn, Nanjing 210093, Jiangsu, Peoples R China.
[Zhang, Xiaowei; Lin, Shaobing; Lin, Tao; Zhang, Pei; Xu, Jun; Xu, Ling; Chen, Kunji] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China.
[Zhang, Xiaowei] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Lin, Tao] Guangxi Univ, Dept Phys, Nanning 530004, Peoples R China.
[Zhang, Pei] Zhengzhou Univ Light Ind, Dept Elect & Informat Engn, Henan Key Lab Informat Based Elect Appliances, Zhengzhou 450002, Peoples R China.
RP Xu, J (reprint author), Nanjing Univ, Natl Lab Solid State Microstruct, Sch Elect Sci & Engn, Nanjing 210093, Jiangsu, Peoples R China.
EM xiaoweizhang@lbl.gov; junxu@nju.edu.cn
FU "973 program" [2013CB632101]; NSFC [11274155]; PAPD; China Scholarship
Council [201406190080]; Scientific Research Foundation of Graduate
School of Nanjing University [2014CL01]
FX This work is supported by "973 program" (2013CB632101), NSFC (11274155)
and PAPD. One of the authors X. Zhang also acknowledges the
State-Sponsored Study Abroad Programs of China Scholarship Council
(201406190080) and the Scientific Research Foundation of Graduate School
of Nanjing University (2014CL01).
NR 32
TC 4
Z9 4
U1 8
U2 23
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 18
BP 11974
EP 11980
DI 10.1039/c5cp00246j
PG 7
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CH1FV
UT WOS:000353767500006
PM 25779974
ER
PT J
AU Scheer, AM
Welz, O
Vasu, SS
Osborn, DL
Taatjes, CA
AF Scheer, Adam M.
Welz, Oliver
Vasu, Subith S.
Osborn, David L.
Taatjes, Craig A.
TI Low temperature (550-700 K) oxidation pathways of cyclic ketones:
dominance of HO2-elimination channels yielding conjugated cyclic
coproducts
SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS
LA English
DT Article
ID SET MODEL CHEMISTRY; COMBUSTION CHEMISTRY; ENDOPHYTIC FUNGI; BIOFUELS;
REARRANGEMENT; KINETICS; HYDROCARBONS; RADICALS; ACYL
AB The low-temperature oxidation of three cyclic ketones, cyclopentanone (CPO; C5H8=O), cyclohexanone (CHO; C6H10=O), and 2-methyl-cyclopentanone (2-Me-CPO; CH3-C5H7=O), is studied between 550 and 700 K and at 4 or 8 Torr total pressure. Initial fuel radicals R are formed via fast H-abstraction from the ketones by laser-photolytically generated chlorine atoms. Intermediates and products from the subsequent reactions of these radicals in the presence of excess O-2 are probed with time and isomeric resolution using multiplexed photoionization mass spectrometry with tunable synchrotron ionizing radiation. For CPO and CHO the dominant product channel in the R + O-2 reactions is chain-terminating HO2-elimination yielding the conjugated cyclic coproducts 2-cyclopentenone and 2-cyclohexenone, respectively. Results on oxidation of 2-Me-CPO also show a dominant contribution from HO2-elimination. The photoionization spectrum of the co-product suggests formation of 2-methyl-2-cyclopentenone and/or 2-cyclohexenone, resulting from a rapid Dowd-Beckwith rearrangement, preceding addition to O-2, of the initial (2-oxocyclopentyl) methyl radical to 3-oxocyclohexyl. Cyclic ethers, markers for hydroperoxyalkyl radicals (QOOH), key intermediates in chain-propagating and chain-branching low-temperature combustion pathways, are only minor products. The interpretation of the experimental results is supported by stationary point calculations on the potential energy surfaces of the associated R + O-2 reactions at the CBS-QB3 level. The calculations indicate that HO2-elimination channels are energetically favored and product formation via QOOH is disfavored. The prominence of chain-terminating pathways linked with HO2 formation in low-temperature oxidation of cyclic ketones suggests little low-temperature reactivity of these species as fuels in internal combustion engines.
C1 [Scheer, Adam M.; Welz, Oliver; Vasu, Subith S.; Osborn, David L.; Taatjes, Craig A.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
RP Taatjes, CA (reprint author), Sandia Natl Labs, Combust Res Facil, MS 9055, Livermore, CA 94551 USA.
EM cataatj@sandia.gov
FU Laboratory Directed Research and Development program at Sandia National
Laboratories; U.S. Department of Energy, Office of Science, Office of
Basic Energy Sciences; United States Department of Energy's National
Nuclear Security Administration [DEAC04-94AL85000]; Office of Science,
Office of Basic Energy Sciences, of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX A preliminary account of some of the experimental work described here
appeared in a publicly available Sandia National Laboratories internal
report (ref. 4). The authors thank Dr Arkke J. Eskola, Dr John D. Savee
and Dr Judit Zador for useful discussions and experimental support and
Mr Howard Johnsen and Mr Kendrew Au for continued technical support of
these experiments. The first experiments for this work were supported by
the Laboratory Directed Research and Development program at Sandia
National Laboratories. Additional experiments, theoretical analysis, and
the development and maintenance of the photoionization mass spectrometry
apparatus were supported by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences. 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 DEAC04-94AL85000. This work used resources
of Advanced Light Source, an Office of Science User Facility 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 31
TC 4
Z9 4
U1 3
U2 30
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9076
EI 1463-9084
J9 PHYS CHEM CHEM PHYS
JI Phys. Chem. Chem. Phys.
PY 2015
VL 17
IS 18
BP 12124
EP 12134
DI 10.1039/c4cp06097k
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CH1FV
UT WOS:000353767500021
PM 25877515
ER
PT J
AU Barenblatt, GI
Chorin, AJ
Prostokishin, VM
AF Barenblatt, G. I.
Chorin, A. J.
Prostokishin, V. M.
TI On the problem of turbulent flows in pipes at very large Reynolds
numbers (reply to comment by I I Vigdorovich [Phys. Usp. 58 196 (2015);
Usp Fiz. Nauk 185 213 (2015)] on "Turbulent flows at very large Reynolds
numbers: new lessons learned" [Phys. Usp. 57 250 (2014); Usp Fiz. Nauk
184 265 (2014)])
SO PHYSICS-USPEKHI
LA English
DT Letter
DE turbulence; intermediate asymptotic laws; asymptotic at high Reynolds
numbers; turbulent flow in pipes; scaling laws; universal logarithmic
law
AB The problem of turbulent flow in pipes, although at first sight of purely engineering interest, has since the 1930s been the subject of much attention by mathematicians and physicists, including such outstanding figures as Th von Karman, L Prandtl, and L D Landau. It has turned out that despite - or perhaps due to - the seemingly simple formulation of this problem, research on it has revealed new aspects of the still very mysterious phenomenon of turbulence. Reference RI briefly summarizes our work over the last twenty years on the problem. Some of our results strongly disagree with commonly accepted views which, unsurprisingly, makes them difficult to accept. This is well exemplified by letter PI, so its analysis here may hopefully be of interest to UFN's (Physics - Uspekhi) readers.
C1 [Barenblatt, G. I.; Prostokishin, V. M.] Russian Acad Sci, PP Shirshov Oceanol Inst, Moscow 119997, Russia.
[Barenblatt, G. I.; Chorin, A. J.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Barenblatt, G. I.; Chorin, A. J.; Prostokishin, V. M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Prostokishin, V. M.] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia.
RP Barenblatt, GI (reprint author), Russian Acad Sci, PP Shirshov Oceanol Inst, Nakhimovskii Prosp 36, Moscow 119997, Russia.
EM gibar@math.berkeley.edu; chorin@math.berkeley.edu;
VMProstokishin@mephi.ru
NR 14
TC 1
Z9 1
U1 0
U2 3
PU TURPION LTD
PI BRISTOL
PA C/O TURPION LTD, IOP PUBLISHING, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1
6HG, ENGLAND
SN 1063-7869
EI 1468-4780
J9 PHYS-USP+
JI Phys. Usp.
PY 2015
VL 58
IS 2
BP 199
EP 201
DI 10.3367/UFNr.0185.201502h.0217
PG 3
WC Physics, Multidisciplinary
SC Physics
GA CH3RA
UT WOS:000353946800007
ER
PT J
AU Dash, JK
Chen, L
Topka, MR
Dinolfo, PH
Zhang, LH
Kisslinger, K
Lu, TM
Wang, GC
AF Dash, J. K.
Chen, L.
Topka, Michael R.
Dinolfo, Peter H.
Zhang, L. H.
Kisslinger, K.
Lu, T. -M.
Wang, G. -C.
TI A simple growth method for Nb2O5 films and their optical properties
SO RSC ADVANCES
LA English
DT Article
ID X-RAY REFLECTIVITY; THIN-FILMS; NIOBIUM PENTOXIDE; ROUGH SURFACES;
SOLAR-CELLS; OXIDE; NANOWIRES; TEMPERATURES; SCATTERING; NANOTUBES
AB A simple method for the synthesis of Nb2O5 films of thicknesses ranging from tens to several hundreds of nanometers on amorphous silicon dioxide or quartz substrates is presented. Nb2O5 films were formed by annealing the sputter deposited Nb films under an Ar flow and without oxygen plasma in a quartz tube within a furnace at 850 degrees C. The structural, compositional, optical, and vibrational properties were characterized by grazing incidence X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, ultraviolet visible spectroscopy, and Raman scattering. Each of the Nb2O5 films is polycrystalline with an orthorhombic crystal structure. We observed vibrational modes including longitudinal optical, transverse optical, and triply degenerate modes, and measured the indirect optical band gap to be similar to 3.65 eV. The transmittance spectrum of the similar to 20 nm thick Nb2O5 film shows over 90% transmittance below the band gap energy in the visible wavelength range and decreases to less than 20% in the ultraviolet regime. The optical properties of the films in the UV-vis range show potential applications as UV detectors.
C1 [Dash, J. K.; Chen, L.; Lu, T. -M.; Wang, G. -C.] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA.
[Topka, Michael R.; Dinolfo, Peter H.] Rensselaer Polytech Inst, Dept Chem & Chem Biol, Troy, NY 12180 USA.
[Zhang, L. H.; Kisslinger, K.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Dash, JK (reprint author), Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, 110 8th St, Troy, NY 12180 USA.
EM jatiskumar@gmail.com
RI Kisslinger, Kim/F-4485-2014; chen, liang/L-9868-2013; Dinolfo,
Peter/C-2145-2009; Zhang, Lihua/F-4502-2014
OI chen, liang/0000-0002-1680-2628; Dinolfo, Peter/0000-0003-0153-0006;
FU New York State Foundation of Science, Technology and Innovation (NYSTAR)
through Focus Center-New York; Rensselaer; U.S. department of Energy,
Office of Basic Sciences [DE-AC02-98CH10886]; National Science
Foundation [CHE-1255100]
FX This work is supported by New York State Foundation of Science,
Technology and Innovation (NYSTAR) through Focus Center-New York, and
Rensselaer. TEM study was carried out in whole at the Center for
Functional Nanomaterials, Brookhaven National Laboratory, which is
operated by the U.S. department of Energy, Office of Basic Sciences,
under contract no. DE-AC02-98CH10886. PHD acknowledges support from the
National Science Foundation CHE-1255100. We thank A. Littlejohn for
editing the manuscript.
NR 51
TC 1
Z9 1
U1 5
U2 44
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2046-2069
J9 RSC ADV
JI RSC Adv.
PY 2015
VL 5
IS 45
BP 36129
EP 36139
DI 10.1039/c5ra05074j
PG 11
WC Chemistry, Multidisciplinary
SC Chemistry
GA CG9PK
UT WOS:000353648400096
ER
PT J
AU Weck, PF
Kim, E
Biedermann, GW
AF Weck, Philippe F.
Kim, Eunja
Biedermann, Grant W.
TI Interaction of cesium adatoms with free-standing graphene and
graphene-veiled SiO2 surfaces
SO RSC ADVANCES
LA English
DT Article
ID GENERALIZED GRADIENT APPROXIMATION; AUGMENTED-WAVE METHOD; SUBSTRATE;
ADSORPTION; ENERGY
AB The interaction of Cs adatoms with mono-or bi-layered graphene (MLG and BLG), either free-standing or on a SiO2 substrate, was investigated using density functional theory. The most stable adsorption sites for Cs are found to be hollow sites on both graphene sheets and graphene-veiled SiO2(0001). Larger dipole moments are created when a MLG-veiled SiO2(0001) substrate is used for adsorption of Cs atoms compared to the adsorption on free-standing MLG, due to charge transfer occurring between the MLG and the SiO2 substrate. For the adsorption of Cs on BLG-veiled SiO2(0001) substrate, these differences are smoothed out and the binding energies corresponding to different sites are nearly degenerate; smaller dipole moments created by the Cs adatoms on BLG compared to MLG are also predicted.
C1 [Weck, Philippe F.; Biedermann, Grant W.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Kim, Eunja] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
RP Weck, PF (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM pfweck@sandia.gov
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 32
TC 1
Z9 1
U1 2
U2 9
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2046-2069
J9 RSC ADV
JI RSC Adv.
PY 2015
VL 5
IS 48
BP 38623
EP 38629
DI 10.1039/c5ra03599f
PG 7
WC Chemistry, Multidisciplinary
SC Chemistry
GA CH3WF
UT WOS:000353960800079
ER
PT J
AU Dongarra, J
Gates, M
Haidar, A
Jia, Y
Kabir, K
Luszczek, P
Tomov, S
AF Dongarra, Jack
Gates, Mark
Haidar, Azzam
Jia, Yulu
Kabir, Khairul
Luszczek, Piotr
Tomov, Stanimire
TI HPC Programming on Intel Many-Integrated-Core Hardware with MAGMA Port
to Xeon Phi
SO SCIENTIFIC PROGRAMMING
LA English
DT Article
AB This paper presents the design and implementation of several fundamental dense linear algebra (DLA) algorithms for multicore with Intel Xeon Phi coprocessors. In particular, we consider algorithms for solving linear systems. Further, we give an overview of the MAGMA MIC library, an open source, high performance library, that incorporates the developments presented here and, more broadly, provides the DLA functionality equivalent to that of the popular LAPACK library while targeting heterogeneous architectures that feature a mix of multicore CPUs and coprocessors. The LAPACK-compliance simplifies the use of the MAGMA MIC library in applications, while providing them with portably performant DLA. High performance is obtained through the use of the high-performance BLAS, hardware-specific tuning, and a hybridization methodology whereby we split the algorithm into computational tasks of various granularities. Execution of those tasks is properly scheduled over the heterogeneous hardware by minimizing data movements and mapping algorithmic requirements to the architectural strengths of the various heterogeneous hardware components. Our methodology and programming techniques are incorporated into the MAGMA MIC API, which abstracts the application developer from the specifics of the Xeon Phi architecture and is therefore applicable to algorithms beyond the scope of DLA.
C1 [Dongarra, Jack; Gates, Mark; Haidar, Azzam; Jia, Yulu; Kabir, Khairul; Luszczek, Piotr; Tomov, Stanimire] Univ Tennessee, Knoxville, TN 37996 USA.
[Dongarra, Jack] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Dongarra, Jack] Univ Manchester, Manchester M13 9PL, Lancs, England.
RP Luszczek, P (reprint author), Univ Tennessee, Knoxville, TN 37996 USA.
EM luszczek@eecs.utk.edu
FU Russian Scientific Fund [N14-11-00190]; National Science Foundation
[ACI-1339822]
FX This work was funded in part by the financial support of the Russian
Scientific Fund Agreement N14-11-00190. The authors would like to thank
the National Science Foundation for supporting this work under Grant no.
ACI-1339822 and the Department of Energy and ISTC for Big Data for
supporting this research effort.
NR 26
TC 1
Z9 1
U1 0
U2 5
PU HINDAWI PUBLISHING CORP
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1058-9244
EI 1875-919X
J9 SCI PROGRAMMING-NETH
JI Sci. Program.
PY 2015
AR 502593
DI 10.1155/2015/502593
PG 11
WC Computer Science, Software Engineering
SC Computer Science
GA CH9DZ
UT WOS:000354337500001
ER
PT J
AU Wilkening, J
Cerfon, A
AF Wilkening, Jon
Cerfon, Antoine
TI A SPECTRAL TRANSFORM METHOD FOR SINGULAR STURM-LIOUVILLE PROBLEMS WITH
APPLICATIONS TO ENERGY DIFFUSION IN PLASMA PHYSICS
SO SIAM JOURNAL ON APPLIED MATHEMATICS
LA English
DT Article
DE Sturm-Liouville theory; continuous spectrum; Titchmarsh-Weyl m-function;
spectral density function; Fokker-Planck collisions; WKB approximation
ID ORDINARY DIFFERENTIAL-EQUATIONS; VELOCITY-SPACE DISCRETIZATION;
DENSITY-FUNCTIONS; BOLTZMANN-EQUATION; OPERATOR
AB We develop a spectrally accurate numerical method to compute solutions of a model PDE used in plasma physics to describe diffusion in velocity space due to Fokker-Planck collisions. The solution is represented as a discrete and continuous superposition of normalizable and non-normalizable eigenfunctions via the spectral transform associated with a singular Sturm-Liouville operator. We present a new algorithm for computing the spectral density function of the operator that uses Chebyshev polynomials to extrapolate the value of the Titchmarsh-Weyl m-function from the complex upper half-plane to the real axis. The eigenfunctions and density function are rescaled, and a new formula for the limiting value of the m-function is derived to avoid amplification of roundoff errors when the solution is reconstructed. The complexity of the algorithm is also analyzed, showing that the cost of computing the spectral density function at a point grows less rapidly than any fractional inverse power of the desired accuracy. A WKB analysis is used to prove that the spectral density function is real analytic. Using this new algorithm, we highlight key properties of the PDE and its solution that have strong implications on the optimal choice of discretization method in large-scale plasma physics computations.
C1 [Wilkening, Jon] Univ Calif Berkeley, Dept Math, Berkeley, CA 94721 USA.
[Wilkening, Jon] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94721 USA.
[Cerfon, Antoine] Courant Inst Math Sci, New York, NY 10012 USA.
RP Wilkening, J (reprint author), Univ Calif Berkeley, Dept Math, Berkeley, CA 94721 USA.
EM wilkening@berkeley.edu; cerfon@cims.nyu.edu
FU U.S. Department of Energy, Office of Science, Applied Scientific
Computing Research [DE-AC02-05CH11231]; National Science Foundation
[DMS-0955078]; U.S. Department of Energy, Office of Science, Fusion
Energy Sciences [DE-FG02-86ER53223]
FX This author's work was supported in part by the U.S. Department of
Energy, Office of Science, Applied Scientific Computing Research, under
award DE-AC02-05CH11231, and by the National Science Foundation under
award DMS-0955078.; This author's work was supported in part by the U.S.
Department of Energy, Office of Science, Fusion Energy Sciences, under
award DE-FG02-86ER53223.
NR 49
TC 1
Z9 1
U1 4
U2 12
PU SIAM PUBLICATIONS
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
SN 0036-1399
EI 1095-712X
J9 SIAM J APPL MATH
JI SIAM J. Appl. Math.
PY 2015
VL 75
IS 2
BP 350
EP 392
DI 10.1137/130941948
PG 43
WC Mathematics, Applied
SC Mathematics
GA CH3YU
UT WOS:000353968000005
ER
PT J
AU Saye, RI
AF Saye, R. I.
TI HIGH-ORDER QUADRATURE METHODS FOR IMPLICITLY DEFINED SURFACES AND
VOLUMES IN HYPERRECTANGLES
SO SIAM JOURNAL ON SCIENTIFIC COMPUTING
LA English
DT Article
DE quadrature; integration; implicit surfaces; level set function; level
set methods; high order
ID LEVEL-SET METHODS; DELTA-FUNCTION INTEGRALS; FINITE-ELEMENT-METHOD;
NUMERICAL APPROXIMATION; INTERFACE PROBLEMS; DOMAINS
AB A high-order accurate numerical quadrature algorithm is presented for the evaluation of integrals over curved surfaces and volumes which are defined implicitly via a fixed isosurface of a given function restricted to a given hyperrectangle. By converting the implicitly defined geometry into the graph of an implicitly defined height function, the approach leads to a recursive algorithm on the number of spatial dimensions which requires only one-dimensional root finding and one-dimensional Gaussian quadrature. The computed quadrature scheme yields strictly positive quadrature weights and inherits the high-order accuracy of Gaussian quadrature: a range of different convergence tests demonstrate orders of accuracy up to 20th order. Also presented is an application of the quadrature algorithm to a high-order embedded boundary discontinuous Galerkin method for solving partial differential equations on curved domains.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Appl Math, Berkeley, CA 94720 USA.
RP Saye, RI (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Appl Math, Berkeley, CA 94720 USA.
EM rsaye@lbl.gov
FU Luis W. Alvarez Postdoctoral Fellowship at Lawrence Berkeley National
Laboratory; Laboratory Directed Research and Development Program of
LBNL; Applied Mathematics Program of the U.S. DOE Office of Advanced
Scientific Computing Research [DE-AC02-05CH11231]; Office of Science of
the U.S. DOE [DE-AC02-05CH11231]
FX This research was supported by a Luis W. Alvarez Postdoctoral Fellowship
at Lawrence Berkeley National Laboratory, by the Laboratory Directed
Research and Development Program of LBNL, and by the Applied Mathematics
Program of the U.S. DOE Office of Advanced Scientific Computing Research
under contract DE-AC02-05CH11231. Some computations used the resources
of the National Energy Research Scientific Computing Center (NERSC),
which is supported by the Office of Science of the U.S. DOE under
contract DE-AC02-05CH11231.
NR 34
TC 7
Z9 7
U1 3
U2 5
PU SIAM PUBLICATIONS
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
SN 1064-8275
EI 1095-7197
J9 SIAM J SCI COMPUT
JI SIAM J. Sci. Comput.
PY 2015
VL 37
IS 2
BP A993
EP A1019
DI 10.1137/140966290
PG 27
WC Mathematics, Applied
SC Mathematics
GA CH2EL
UT WOS:000353838400018
ER
PT J
AU Carlberg, K
Tuminaro, R
Boggs, P
AF Carlberg, Kevin
Tuminaro, Ray
Boggs, Paul
TI PRESERVING LAGRANGIAN STRUCTURE IN NONLINEAR MODEL REDUCTION WITH
APPLICATION TO STRUCTURAL DYNAMICS
SO SIAM JOURNAL ON SCIENTIFIC COMPUTING
LA English
DT Article
DE nonlinear model reduction; structure preservation; Lagrangian dynamics;
Hamiltonian dynamics; structural dynamics; positive definiteness; matrix
symmetry
ID PARTIAL-DIFFERENTIAL-EQUATIONS; EMPIRICAL INTERPOLATION; APPROXIMATIONS;
SYSTEMS; OUTPUT
AB This work proposes a model-reduction methodology that preserves Lagrangian structure and achieves computational efficiency in the presence of high-order nonlinearities and arbitrary parameter dependence. As such, the resulting reduced-order model retains key properties such as energy conservation and symplectic time-evolution maps. We focus on parameterized simple mechanical systems subjected to Rayleigh damping and external forces, and consider an application to nonlinear structural dynamics. To preserve structure, the method first approximates the system's "Lagrangian ingredients"-the Riemannian metric, the potential-energy function, the dissipation function, and the external force-and subsequently derives reduced-order equations of motion by applying the (forced) Euler-Lagrange equation with these quantities. From the algebraic perspective, key contributions include two efficient techniques for approximating parameterized reduced matrices while preserving symmetry and positive definiteness: matrix gappy proper orthogonal decomposition and reduced-basis sparsification. Results for a parameterized truss-structure problem demonstrate the practical importance of preserving Lagrangian structure and illustrate the proposed method's merits: it reduces computation time while maintaining high accuracy and stability, in contrast to existing nonlinear model-reduction techniques that do not preserve structure.
C1 [Carlberg, Kevin; Boggs, Paul] Sandia Natl Labs, Quantitat Modeling & Anal Dept, Livermore, CA 94550 USA.
[Tuminaro, Ray] Sandia Natl Labs, Numer Anal & Applicat Dept, Livermore, CA 94550 USA.
RP Carlberg, K (reprint author), Sandia Natl Labs, Quantitat Modeling & Anal Dept, Livermore, CA 94550 USA.
EM ktcarlb@sandia.gov; rstumin@sandia.gov; ptboggs@sandia.gov
FU U.S. Department of Energy [DE-AC04-94AL85000]; Department of Energy
Office of Advanced Scientific Computing Research [10-014804]
FX This research was supported in part by an appointment to the Sandia
National Laboratories Truman Fellowship in National Security Science and
Engineering, sponsored by Sandia Corporation (a wholly owned subsidiary
of Lockheed Martin Corporation) as Operator of Sandia National
Laboratories under its U.S. Department of Energy Contract
DE-AC04-94AL85000. The authors also acknowledge support by the
Department of Energy Office of Advanced Scientific Computing Research
under contract 10-014804.
NR 27
TC 7
Z9 7
U1 1
U2 3
PU SIAM PUBLICATIONS
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
SN 1064-8275
EI 1095-7197
J9 SIAM J SCI COMPUT
JI SIAM J. Sci. Comput.
PY 2015
VL 37
IS 2
BP B153
EP B184
DI 10.1137/140959602
PG 32
WC Mathematics, Applied
SC Mathematics
GA CH2EL
UT WOS:000353838400025
ER
PT J
AU Amestoy, PR
Duff, IS
L'Excellent, JY
Rouet, FH
AF Amestoy, Patrick R.
Duff, Iain S.
L'Excellent, Jean-Yves
Rouet, Francois-Henry
TI PARALLEL COMPUTATION OF ENTRIES OF A(-1)
SO SIAM JOURNAL ON SCIENTIFIC COMPUTING
LA English
DT Article
DE sparse matrices; direct methods for linear system and matrix inversion;
parallel algorithms
ID ALGORITHM; SYSTEMS; MATRIX
AB In this paper, we consider the computation in parallel of several entries of the inverse of a large sparse matrix. We assume that the matrix has already been factorized by a direct method and that the factors are distributed. Entries are efficiently computed by exploiting sparsity of the right-hand sides and the solution vectors in the triangular solution phase. We demonstrate that in this setting, parallelism and computational efficiency are two contrasting objectives. We develop an efficient approach and show its efficiency on a general purpose parallel multifrontal solver.
C1 [Amestoy, Patrick R.; Rouet, Francois-Henry] Univ Toulouse, INPT ENSEEIHT IRIT, F-31071 Toulouse, France.
[Duff, Iain S.] CERFACS, F-31057 Toulouse, France.
[Duff, Iain S.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[L'Excellent, Jean-Yves] Univ Lyon, Inria, F-69364 Lyon 07, France.
[L'Excellent, Jean-Yves] Univ Lyon, Lab LIP UMR CNRS ENS Lyon Inria 5668, F-69364 Lyon 07, France.
[Rouet, Francois-Henry] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Amestoy, PR (reprint author), Univ Toulouse, INPT ENSEEIHT IRIT, F-31071 Toulouse, France.
EM amestoy@enseeiht.fr; duff@cerfacs.fr; jean-yves.l.excellent@ens-lyon.fr;
fhrouet@lbl.gov
FU Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231];
EPSRC [EP/I013067/1]; Office of Science, Office of Advanced Scientific
Computing Research, of the U.S. DOE [DE-AC02-05CH11231]
FX This work also 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 DE-AC02-05CH11231.; This
author's research was supported in part by EPSRC grant EP/I013067/1.;
This author's research was supported in part by the Director, Office of
Science, Office of Advanced Scientific Computing Research, of the U.S.
DOE under contract DE-AC02-05CH11231.
NR 17
TC 2
Z9 2
U1 0
U2 0
PU SIAM PUBLICATIONS
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
SN 1064-8275
EI 1095-7197
J9 SIAM J SCI COMPUT
JI SIAM J. Sci. Comput.
PY 2015
VL 37
IS 2
BP C268
EP C284
DI 10.1137/120902616
PG 17
WC Mathematics, Applied
SC Mathematics
GA CH2EL
UT WOS:000353838400038
ER
PT J
AU Ghysels, P
Vanroose, W
AF Ghysels, Pieter
Vanroose, Wim
TI MODELING THE PERFORMANCE OF GEOMETRIC MULTIGRID STENCILS ON MULTICORE
COMPUTER ARCHITECTURES
SO SIAM JOURNAL ON SCIENTIFIC COMPUTING
LA English
DT Article
DE multigrid; performance model; multicore; bandwidth
ID COMPUTATIONS; PARALLELIZATION; OPTIMIZATION
AB The basic building blocks of the classic geometric multigrid algorithm all have a low ratio of executed floating point operations per byte fetched from memory. On modern computer architectures, such computational kernels are typically bound by memory traffic and achieve only a small percentage of the theoretical peak floating point performance of the underlying hardware. We suggest the use of state-of-the-art (stencil) compiler techniques to improve the flop per byte ratio, also called the arithmetic intensity, of the steps in the algorithm. Our focus will be on the smoother which is a repeated stencil application. With a tiling approach based on the polyhedral loop optimization framework, data reuse in the smoother can be improved, leading to a higher effective arithmetic intensity. For an academic constant coefficient Poisson problem, we present a performance model for the multigrid V -cycle solver based on the tiled smoother. For increasing numbers of smoothing steps, there is a trade-off between the improved efficiency due to better data reuse and the additional flops required for extra smoothing steps. Our performance model predicts time to solution by linking convergence rate to arithmetic intensity via the roofline model. We show results for two-dimensional (2D) and three-dimensional (3D) simulations on Intel Sandy Bridge and for 2D simulations on Intel Xeon Phi architectures. The actual performance is compared with the theoretical predictions.
C1 [Ghysels, Pieter; Vanroose, Wim] Univ Antwerp, Dept Math & Comp Sci, B-2020 Antwerp, Belgium.
[Ghysels, Pieter] Intel ExaSci Lab, B-3001 Louvain, Belgium.
[Ghysels, Pieter] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
RP Ghysels, P (reprint author), Univ Antwerp, Dept Math & Comp Sci, Middelheimlaan 1, B-2020 Antwerp, Belgium.
EM pghysels@lbl.gov; wim.vanroose@ua.ac.be
FU Institute for the Promotion of Innovation through Science and Technology
in Flanders (IWT); DOE Office of Advanced Scientific Computing Research
[DE-AC02-05CH11231]
FX This work is funded by Intel and by the Institute for the Promotion of
Innovation through Science and Technology in Flanders (IWT). All authors
from Lawrence Berkeley National Laboratory were supported by the DOE
Office of Advanced Scientific Computing Research under contract number
DE-AC02-05CH11231. The U.S. Government retains a nonexclusive,
royalty-free license to publish or reproduce the published form of this
contribution, or allow others to do so, for U.S. Government purposes.
Copyright is owned by SIAM to the extent not limited by these rights.
NR 43
TC 1
Z9 1
U1 0
U2 3
PU SIAM PUBLICATIONS
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
SN 1064-8275
EI 1095-7197
J9 SIAM J SCI COMPUT
JI SIAM J. Sci. Comput.
PY 2015
VL 37
IS 2
BP C194
EP C216
DI 10.1137/130935781
PG 23
WC Mathematics, Applied
SC Mathematics
GA CH2EL
UT WOS:000353838400035
ER
PT S
AU DeVore, PTS
Jiang, YS
Lynch, M
Miyatake, T
Carmona, C
Chan, AC
Muniam, K
Jalali, B
AF DeVore, Peter T. S.
Jiang, Yunshan
Lynch, Michael
Miyatake, Taira
Carmona, Christopher
Chan, Andrew C.
Muniam, Kuhan
Jalali, Bahram
BE Reed, GT
Watts, MR
TI Silicon Photonics Cloud (SiCloud)
SO SILICON PHOTONICS X
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Silicon Photonics X
CY FEB 09-12, 2015
CL San Francisco, CA
SP SPIE
DE silicon photonics calculator; silicon photonics simulation; silicon
photonics tool; silicon photonics cloud; silicon photonics education;
silicon; fused silica; material properties; refractive index;
absorption; waveguides; optical properties; visualization
ID WAVE-GUIDES; GENERATION; LASER
AB We present SiCloud (Silicon Photonics Cloud), the first free, instructional web-based research and education tool for silicon photonics. SiCloud's vision is to provide a host of instructional and research web-based tools. Such interactive learning tools enhance traditional teaching methods by extending access to a very large audience, resulting in very high impact. Interactive tools engage the brain in a way different from merely reading, and so enhance and reinforce the learning experience. Understanding silicon photonics is challenging as the topic involves a wide range of disciplines, including material science, semiconductor physics, electronics and waveguide optics. This web-based calculator is an interactive analysis tool for optical properties of silicon and related material (SiO2, Si3N4, Al2O3, etc.). It is designed to be a one stop resource for students, researchers and design engineers. The first and most basic aspect of Silicon Photonics is the Material Parameters, which provides the foundation for the Device, Sub-System and System levels. SiCloud includes the common dielectrics and semiconductors for waveguide core, cladding, and photodetection, as well as metals for electrical contacts. SiCloud is a work in progress and its capability is being expanded. SiCloud is being developed at UCLA with funding from the National Science Foundation's Center for Integrated Access Networks (CIAN) Engineering Research Center.
C1 [DeVore, Peter T. S.; Jiang, Yunshan; Lynch, Michael; Miyatake, Taira; Chan, Andrew C.; Jalali, Bahram] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA.
[DeVore, Peter T. S.; Carmona, Christopher; Muniam, Kuhan] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Lynch, Michael] Univ Calif Los Angeles, Dept Comp Sci, Los Angeles, CA 90095 USA.
[Miyatake, Taira] Univ Tokyo, Dept Mechano Informat, Tokyo, Japan.
[Jalali, Bahram] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA.
[Jalali, Bahram] Univ Calif Los Angeles, Dept Bioengn, Los Angeles, CA 90095 USA.
[Jalali, Bahram] Univ Calif Los Angeles, David Geffen Sch Med, Dept Surg, Los Angeles, CA 90095 USA.
RP DeVore, PTS (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM pdevore@ucla.edu
NR 14
TC 1
Z9 1
U1 2
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-457-8
J9 PROC SPIE
PY 2015
VL 9367
AR 93670G
DI 10.1117/12.2077331
PG 6
WC Optics; Physics, Applied
SC Optics; Physics
GA BC6QD
UT WOS:000354373600012
ER
PT J
AU Kalathi, JT
Kumar, SK
Rubinstein, M
Grest, GS
AF Kalathi, Jagannathan T.
Kumar, Sanat K.
Rubinstein, Michael
Grest, Gary S.
TI Rouse mode analysis of chain relaxation in polymer nanocomposites
SO SOFT MATTER
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATION; SOLAR-CELLS; MELTS; LIQUIDS;
NANOPARTICLES; DIFFUSION; MIXTURES; TOPOLOGY; TIME
AB Large-scale molecular dynamics simulations are used to study the internal relaxations of chains in nanoparticle (NP)/polymer composites. We examine the Rouse modes of the chains, a quantity that is closest in spirit to the self-intermediate scattering function, typically determined in an (incoherent) inelastic neutron scattering experiment. Our simulations show that for weakly interacting mixtures of NPs and polymers, the effective monomeric relaxation rates are faster than in a neat melt when the NPs are smaller than the entanglement mesh size. In this case, the NPs serve to reduce both the monomeric friction and the entanglements in the polymer melt, as in the case of a polymer-solvent system. However, for NPs larger than half the entanglement mesh size, the effective monomer relaxation is essentially unaffected for low NP concentrations. Even in this case, we observe a strong reduction in chain entanglements for larger NP loadings. Thus, the role of NPs is to always reduce the number of entanglements, with this effect only becoming pronounced for small NPs or for high concentrations of large NPs. Our studies of the relaxation of single chains resonate with recent neutron spin echo (NSE) experiments, which deduce a similar entanglement dilution effect.
C1 [Kalathi, Jagannathan T.; Kumar, Sanat K.] Columbia Univ, Dept Chem Engn, New York, NY 10027 USA.
[Kalathi, Jagannathan T.] Natl Inst Technol Karnataka, Dept Chem Engn, Surathkal 575025, KA, India.
[Rubinstein, Michael] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA.
[Grest, Gary S.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Kumar, SK (reprint author), Columbia Univ, Dept Chem Engn, New York, NY 10027 USA.
EM sk2794@columbia.edu
FU National Science Foundation [DMR-1006514, DMR-1309892, DMR-1436201,
DMR-1121107, DMR-1122483]; National Institutes of Health
[1-P01-HL108808-01A1]; Cystic Fibrosis Foundation; Office of Science of
the United States Department of Energy [DE-AC02-05CH11231]; US
Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX We thank Dieter Richter for detailed comments and discussion. JTK and
SKK acknowledge financial support from the National Science Foundation
(DMR-1006514). MR would like to acknowledge financial support from the
National Science Foundation under grants DMR-1309892, DMR-1436201,
DMR-1121107, and DMR-1122483, the National Institutes of Health under
1-P01-HL108808-01A1 and the Cystic Fibrosis Foundation. This research
used resources obtained through the Advanced Scientific Computing
Research (ASCR) Leadership Computing Challenge (ALCC) at the National
Energy Research Scientific Computing Center (NERSC), which is supported
by the Office of Science of the United States Department of Energy under
Contract No. DE-AC02-05CH11231. This work was performed, in part, at the
Center for Integrated Nanotechnologies, a US Department of Energy,
Office of Basic Energy Sciences user facility. Sandia National
Laboratories is a multi-program 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 DE-AC04-94AL85000.
NR 43
TC 12
Z9 12
U1 12
U2 57
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
EI 1744-6848
J9 SOFT MATTER
JI Soft Matter
PY 2015
VL 11
IS 20
BP 4123
EP 4132
DI 10.1039/c5sm00754b
PG 10
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA CI0SU
UT WOS:000354449100019
PM 25939276
ER
PT S
AU Oktem, R
Romps, DM
AF Oektem, Rusen
Romps, David M.
BE Sitnik, R
Puech, W
TI Observing Atmospheric Clouds through Stereo Reconstruction
SO THREE-DIMENSIONAL IMAGE PROCESSING, MEASUREMENT (3DIPM), AND
APPLICATIONS 2015
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Three-Dimensional Image Processing, Measurement (3DIPM),
and Applications
CY FEB 10-12, 2015
CL San Francisco, CA
SP Soc Imaging Sci & Technol, SPIE
DE atmospheric clouds; feature extraction; stereo reconstruction; tracking;
calibration
ID BASE-HEIGHT; PHOTOGRAMMETRY; CONVECTION; CAMERAS; SKY
AB Observing cloud lifecycles and obtaining measurements on cloud features are significant problems in atmospheric cloud research. Scanning radars have been the most capable instruments to provide such measurements, but they have shortcomings when it comes to spatial and temporal resolution. High spatial and temporal resolution is particularly important to capture the variations in developing convections. Stereo photogrammetry can complement scanning radars with the potential to observe clouds as distant as tens of kilometers and to provide high temporal and spatial resolution, although it comes with the calibration challenges peculiar to various outdoor settings required to collect measurements on atmospheric clouds. This work explores the use of stereo photogrammetry in atmospheric cloud research, focusing on tracking vertical motion in developing convections. Calibration challenges and strategies to overcome these challenges are addressed within two different stereo settings in Miami, Florida and in the plains of Oklahoma. A feature extraction and matching algorithm is developed and implemented to identify cloud features of interest. A two-level resolution hierarchy is exploited in feature extraction and matching. 3D positions of cloud features are reconstructed from matched pixel pairs, and cloud tops of developing turrets in shallow to deep convection are tracked in time to estimate vertical accelerations. Results show that stereophotogrammetry provides a useful tool to observe cloud lifecycles and track the vertical acceleration of turrets exceeding 10 km height.
C1 [Oektem, Rusen; Romps, David M.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
[Romps, David M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Earth Sci Div, Berkeley, CA 94720 USA.
RP Oktem, R (reprint author), Univ Calif Berkeley, Dept Earth & Planetary Sci, 307 Mc Cone Hall, Berkeley, CA 94720 USA.
EM roktem@lbl.gov
RI Romps, David/F-8285-2011
NR 21
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-1-62841-483-7
J9 PROC SPIE
PY 2015
VL 9393
AR 93930H
DI 10.1117/12.2083395
PG 10
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BC6LX
UT WOS:000354079300015
ER
EF