FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Henriques, A
Graham, JT
Landsberger, S
Ihlefeld, JF
Brennecka, GL
Brown, DW
Forrester, JS
Jones, JL
AF Henriques, Alexandra
Graham, Joseph T.
Landsberger, Sheldon
Ihlefeld, Jon F.
Brennecka, Geoff L.
Brown, Donald W.
Forrester, Jennifer S.
Jones, Jacob L.
TI Crystallographic changes in lead zirconate titanate due to neutron
irradiation
SO AIP ADVANCES
LA English
DT Article
ID NONVOLATILE-MEMORY APPLICATIONS; PZT-TYPE CERAMICS; TECHNOLOGY;
MICROELECTRONICS; MAGNESIUM; BATIO3; FILMS; UPSET; PURE
AB Piezoelectric and ferroelectric materials are useful as the active element in non-destructive monitoring devices for high-radiation areas. Here, crystallographic structural refinement (i. e., the Rietveld method) is used to quantify the type and extent of structural changes in PbZr0.5Ti0.5O3 after exposure to a 1 MeV equivalent neutron fluence of 1.7x10(15) neutrons/cm(2). The results showa measurable decrease in the occupancy of Pb and O due to irradiation, with O vacancies in the tetragonal phase being created preferentially on one of the two O sites. The results demonstrate a method by which the effects of radiation on crystallographic structure may be investigated. (C) 2014 Author(s).
C1 [Henriques, Alexandra] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA.
[Graham, Joseph T.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Landsberger, Sheldon] Univ Texas Austin, Dept Mech Engn, Nucl Engn Teaching Lab, Austin, TX 78712 USA.
[Ihlefeld, Jon F.; Brennecka, Geoff L.] Sandia Natl Labs, Elect Opt & Nanomat Dept, Albuquerque, NM 87185 USA.
[Brown, Donald W.] Los Alamos Neutron Sci Ctr, Los Alamos, NM 87185 USA.
[Forrester, Jennifer S.; Jones, Jacob L.] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA.
RP Jones, JL (reprint author), N Carolina State Univ, Dept Mat Sci & Engn, Box 7907, Raleigh, NC 27695 USA.
EM jacobjones@ncsu.edu
RI Brennecka, Geoff/J-9367-2012;
OI Brennecka, Geoff/0000-0002-4476-7655; Forrester,
Jennifer/0000-0002-4035-815X
FU National Institute for NanoEngineering (NINE); Laboratory Directed
Research and Development (LDRD) program at Sandia National Laboratories;
U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX A portion of this work was funded under the National Institute for
NanoEngineering (NINE) and the Laboratory Directed Research and
Development (LDRD) program at Sandia National Laboratories. 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 29
TC 2
Z9 2
U1 1
U2 13
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 2158-3226
J9 AIP ADV
JI AIP Adv.
PD NOV
PY 2014
VL 4
IS 11
AR 117125
DI 10.1063/1.4902179
PG 7
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA AU4KE
UT WOS:000345578800025
ER
PT J
AU Aliu, E
Aune, T
Barnacka, A
Beilicke, M
Benbow, W
Berger, K
Biteau, J
Buckley, JH
Bugaev, V
Byrum, K
Cardenzana, JV
Cerruti, M
Chen, X
Ciupik, L
Connaughton, V
Cui, W
Dickinson, HJ
Eisch, JD
Errando, M
Falcone, A
Federici, S
Feng, Q
Finley, JP
Fleischhack, H
Fortin, P
Fortson, L
Furniss, A
Galante, N
Gillanders, GH
Griffin, S
Griffiths, ST
Grube, J
Gyuk, G
Hakansson, N
Hanna, D
Holder, J
Hughes, G
Humensky, TB
Johnson, CA
Kaaret, P
Kar, P
Kertzman, M
Khassen, Y
Kieda, D
Krawczynski, H
Krennrich, F
Lang, MJ
Madhavan, AS
Maier, G
McArthur, S
McCann, A
Meagher, K
Millis, J
Moriarty, P
Mukherjee, R
Nieto, D
de Bhroithe, AO
Ong, RA
Otte, AN
Park, N
Pohl, M
Popkow, A
Prokoph, H
Pueschel, E
Quinn, J
Ragan, K
Rajotte, J
Reyes, LC
Reynolds, PT
Richards, GT
Roache, E
Sembroski, GH
Shahinyan, K
Smith, AW
Staszak, D
Telezhinsky, I
Tucci, JV
Tyler, J
Varlotta, A
Vassiliev, VV
Vincent, S
Wakely, SP
Weiner, OM
Weinstein, A
Welsing, R
Wilhelm, A
Williams, DA
Zitzer, B
McEnery, JE
Perkins, JS
Veres, P
Zhu, S
AF Aliu, E.
Aune, T.
Barnacka, A.
Beilicke, M.
Benbow, W.
Berger, K.
Biteau, J.
Buckley, J. H.
Bugaev, V.
Byrum, K.
Cardenzana, J. V.
Cerruti, M.
Chen, X.
Ciupik, L.
Connaughton, V.
Cui, W.
Dickinson, H. J.
Eisch, J. D.
Errando, M.
Falcone, A.
Federici, S.
Feng, Q.
Finley, J. P.
Fleischhack, H.
Fortin, P.
Fortson, L.
Furniss, A.
Galante, N.
Gillanders, G. H.
Griffin, S.
Griffiths, S. T.
Grube, J.
Gyuk, G.
Hakansson, N.
Hanna, D.
Holder, J.
Hughes, G.
Humensky, T. B.
Johnson, C. A.
Kaaret, P.
Kar, P.
Kertzman, M.
Khassen, Y.
Kieda, D.
Krawczynski, H.
Krennrich, F.
Lang, M. J.
Madhavan, A. S.
Maier, G.
McArthur, S.
McCann, A.
Meagher, K.
Millis, J.
Moriarty, P.
Mukherjee, R.
Nieto, D.
de Bhroithe, A. O'Faolain
Ong, R. A.
Otte, A. N.
Park, N.
Pohl, M.
Popkow, A.
Prokoph, H.
Pueschel, E.
Quinn, J.
Ragan, K.
Rajotte, J.
Reyes, L. C.
Reynolds, P. T.
Richards, G. T.
Roache, E.
Sembroski, G. H.
Shahinyan, K.
Smith, A. W.
Staszak, D.
Telezhinsky, I.
Tucci, J. V.
Tyler, J.
Varlotta, A.
Vassiliev, V. V.
Vincent, S.
Wakely, S. P.
Weiner, O. M.
Weinstein, A.
Welsing, R.
Wilhelm, A.
Williams, D. A.
Zitzer, B.
McEnery, J. E.
Perkins, J. S.
Veres, P.
Zhu, S.
TI CONSTRAINTS ON VERY HIGH ENERGY EMISSION FROM GRB 130427A
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE gamma-ray burst: individual (GRB 130427A)
ID GAMMA-RAY BURSTS; COMPONENT; AFTERGLOWS; SWIFT; TELESCOPE; SPECTRA;
MISSION; LIMITS; TEV
AB Prompt emission from the very fluent and nearby (z = 0.34) gamma-ray burst GRB130427A was detected by several orbiting telescopes and by ground-based, wide-field-of-view optical transient monitors. Apart from the intensity and proximity of this GRB, it is exceptional due to the extremely long-lived high-energy (100 MeV to 100 GeV) gamma-ray emission, which was detected by the Large Area Telescope on the Fermi Gamma-Ray Space Telescope for similar to 70 ks after the initial burst. The persistent, hard-spectrum, high-energy emission suggests that the highest-energy gamma rays may have been produced via synchrotron self-Compton processes though there is also evidence that the high-energy emission may instead be an extension of the synchrotron spectrum. VERITAS, a ground-based imaging atmospheric Cherenkov telescope array, began follow-up observations of GRB130427A similar to 71 ks (similar to 20 hr) after the onset of the burst. The GRB was not detected with VERITAS; however, the high elevation of the observations, coupled with the low redshift of the GRB, make VERITAS a very sensitive probe of the emission from GRB130427A for E > 100 GeV. The non-detection and consequent upper limit derived place constraints on the synchrotron self-Compton model of high-energy gamma-ray emission from this burst.
C1 [Aliu, E.; Errando, M.; Mukherjee, R.] Columbia Univ Barnard Coll, Dept Phys & Astron, New York, NY 10027 USA.
[Aune, T.; Ong, R. A.; Popkow, A.; Vassiliev, V. V.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Barnacka, A.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Beilicke, M.; Buckley, J. H.; Bugaev, V.; Krawczynski, H.] Washington Univ, Dept Phys, St Louis, MO 63130 USA.
[Benbow, W.; Cerruti, M.; Fortin, P.; Galante, N.; Roache, E.] Harvard Smithsonian Ctr Astrophys, Fred Lawrence Whipple Observ, Amado, AZ 85645 USA.
[Berger, K.; Holder, J.] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
[Berger, K.; Holder, J.] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
[Biteau, J.; Furniss, A.; Johnson, C. A.; Williams, D. A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Biteau, J.; Furniss, A.; Johnson, C. A.; Williams, D. A.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA.
[Byrum, K.; Zitzer, B.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Cardenzana, J. V.; Dickinson, H. J.; Eisch, J. D.; Krennrich, F.; Madhavan, A. S.; Weinstein, A.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Chen, X.; Federici, S.; Hakansson, N.; Pohl, M.; Telezhinsky, I.; Wilhelm, A.] Univ Potsdam, Inst Phys & Astron, D-14476 Potsdam, Germany.
[Chen, X.; Federici, S.; Fleischhack, H.; Hughes, G.; Maier, G.; de Bhroithe, A. O'Faolain; Pohl, M.; Prokoph, H.; Telezhinsky, I.; Vincent, S.; Welsing, R.; Wilhelm, A.] DESY, D-15738 Zeuthen, Germany.
[Ciupik, L.; Grube, J.; Gyuk, G.] Adler Planetarium & Astron Museum, Dept Astron, Chicago, IL 60605 USA.
[Connaughton, V.] Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA.
[Cui, W.; Feng, Q.; Finley, J. P.; Sembroski, G. H.; Tucci, J. V.; Varlotta, A.] Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA.
[Falcone, A.; Veres, P.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Fortson, L.; Shahinyan, K.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
[Gillanders, G. H.; Lang, M. J.; Moriarty, P.] Natl Univ Ireland Galway, Sch Phys, Galway, Ireland.
[Griffin, S.; Hanna, D.; Ragan, K.; Rajotte, J.; Staszak, D.; Tyler, J.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
[Griffiths, S. T.; Kaaret, P.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA.
[Humensky, T. B.; Nieto, D.; Weiner, O. M.] Columbia Univ, Dept Phys, New York, NY 10027 USA.
[Kar, P.; Kieda, D.; Smith, A. W.] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA.
[Kertzman, M.] Depauw Univ, Dept Phys & Astron, Greencastle, IN 46135 USA.
[Khassen, Y.; Pueschel, E.; Quinn, J.] Natl Univ Ireland Univ Coll Dublin, Sch Phys, Dublin 4, Ireland.
[McArthur, S.; Park, N.; Wakely, S. P.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[McCann, A.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Meagher, K.; Otte, A. N.; Richards, G. T.] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA.
[Meagher, K.; Otte, A. N.; Richards, G. T.] Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA.
[Millis, J.] Anderson Univ, Dept Phys, Anderson, IN 46012 USA.
[Moriarty, P.] Galway Mayo Inst Technol, Dept Life & Phys Sci, Galway, Ireland.
[Reyes, L. C.] Calif Polytech State Univ San Luis Obispo, Dept Phys, San Luis Obispo, CA 94307 USA.
[Reynolds, P. T.] Cork Inst Technol, Dept Appl Phys & Instrumentat, Bishopstown, Cork, Ireland.
[McEnery, J. E.; Perkins, J. S.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[McEnery, J. E.; Zhu, S.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.; Zhu, S.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Veres, P.] George Washington Univ, Dept Phys, Washington, DC 20052 USA.
[Veres, P.] Penn State Univ, Dept Phys, University Pk, PA 16802 USA.
[Veres, P.] Penn State Univ, Ctr Particle & Gravitat Astrophys, University Pk, PA 16802 USA.
RP Aliu, E (reprint author), Columbia Univ Barnard Coll, Dept Phys & Astron, New York, NY 10027 USA.
EM aune@astro.ucla.edu; veres@email.gwu.edu; sjzhu@umd.edu
RI Khassen, Yerbol/I-3806-2015; Nieto, Daniel/J-7250-2015;
OI Khassen, Yerbol/0000-0002-7296-3100; Nieto, Daniel/0000-0003-3343-0755;
Cui, Wei/0000-0002-6324-5772; Barnacka, Anna/0000-0001-5655-4158; Lang,
Mark/0000-0003-4641-4201
FU U.S. Department of Energy Office of Science; U.S. National Science
Foundation; Smithsonian Institution; NSERC in Canada; Science Foundation
Ireland [SFI 10/RFP/AST2748]; STFC in the U.K; NASA [NNX12AE30G]
FX VERITAS is supported by grants from the U.S. Department of Energy Office
of Science, the U.S. National Science Foundation, and the Smithsonian
Institution, by NSERC in Canada, by Science Foundation Ireland (SFI
10/RFP/AST2748) and by STFC in the U.K. Additional support for
observations of GRBs comes from NASA grant NNX12AE30G. We acknowledge
the excellent work of the technical support staff at the Fred Lawrence
Whipple Observatory and at the collaborating institutions in the
construction and operation of the instrument.
NR 39
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U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
EI 2041-8213
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD NOV 1
PY 2014
VL 795
IS 1
AR L3
DI 10.1088/2041-8205/795/1/L3
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AU2NO
UT WOS:000345455500003
ER
PT J
AU Lee, KG
Hennawi, JF
Stark, C
Prochaska, JX
White, M
Schlegel, DJ
Eilers, AC
Arinyo-i-Prats, A
Suzuki, N
Croft, RAC
Caputi, KI
Cassata, P
Ilbert, O
Garilli, B
Koekemoer, AM
Le Brun, V
Le Fevre, O
Maccagni, D
Nugent, P
Taniguchi, Y
Tasca, LAM
Tresse, L
Zamorani, G
Zucca, E
AF Lee, Khee-Gan
Hennawi, Joseph F.
Stark, Casey
Prochaska, J. Xavier
White, Martin
Schlegel, David J.
Eilers, Anna-Christina
Arinyo-i-Prats, Andreu
Suzuki, Nao
Croft, Rupert A. C.
Caputi, Karina I.
Cassata, Paolo
Ilbert, Olivier
Garilli, Bianca
Koekemoer, Anton M.
Le Brun, Vincent
Le Fevre, Olivier
Maccagni, Dario
Nugent, Peter
Taniguchi, Yoshiaki
Tasca, Lidia A. M.
Tresse, Laurence
Zamorani, Gianni
Zucca, Elena
TI LY alpha FOREST TOMOGRAPHY FROM BACKGROUND GALAXIES: THE FIRST
MEGAPARSEC-RESOLUTION LARGE-SCALE STRUCTURE MAP AT Z > 2
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE cosmology: observations; galaxies: high-redshift; intergalactic medium;
quasars: absorption lines; surveys; techniques: spectroscopic
ID REST-FRAME ULTRAVIOLET; BARYON ACOUSTIC-OSCILLATIONS;
HUBBLE-SPACE-TELESCOPE; DIGITAL SKY SURVEY; INTERGALACTIC MEDIUM; POWER
SPECTRUM; SPECTROSCOPIC SURVEY; STAR-FORMATION; COSMOS; REDSHIFT
AB We present the first observations of foreground Ly alpha forest absorption fromhigh-redshift galaxies, targeting 24 star-forming galaxies (SFGs) with z similar to 2.3-2.8 within a 5' x 14' region of the COSMOS field. The transverse sightline separation is similar to 2h(-1) Mpc comoving, allowing us to create a tomographic reconstruction of the three-dimensional (3D) Lya forest absorption field over the redshift range 2.20 <= z <= 2.45. The resulting map covers 6h(-1) Mpc x 14h(-1) Mpc in the transverse plane and 230h(-1) Mpc along the line of sight with a spatial resolution of approximate to 3.5h(-1) Mpc, and is the firsthigh-fidelity map of a large-scale structure on similar to Mpc scales at z > 2. Our map reveals significant structures with greater than or similar to 10h(-1) Mpc extent, including several spanning the entire transverse breadth, providing qualitative evidence for the filamentary structures predicted to exist in thehigh-redshift cosmic web. Simulated reconstructions with the same sightline sampling, spectral resolution, and signal-to-noise ratio recover the salient structures present in the underlying 3D absorption fields. Using data from other surveys, we identified 18 galaxies with known redshifts coeval with our map volume, enabling a direct comparison with our tomographic map. This shows that galaxies preferentially occupyhigh-density regions, in qualitative agreement with the same comparison applied to simulations. Our results establish the feasibility of the CLAMATO survey, which aims to obtain Ly alpha forest spectra for similar to 1000 SFGs over similar to 1deg(2) of the COSMOS field, in order to map out the intergalactic medium large-scale structure at < z > similar to 2.3 over a large volume (100h(-1) Mpc)(3).
C1 [Lee, Khee-Gan; Hennawi, Joseph F.; Eilers, Anna-Christina] Max Planck Inst Astron, D-69117 Heidelberg, Germany.
[Stark, Casey; White, Martin; Nugent, Peter] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA.
[Stark, Casey; White, Martin; Nugent, Peter] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Prochaska, J. Xavier] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Prochaska, J. Xavier; Schlegel, David J.] Univ Calif Santa Cruz, Lick Observ, Santa Cruz, CA 95064 USA.
[Arinyo-i-Prats, Andreu] Univ Barcelona IEEC UB, Inst Ciencies Cosmos, E-08028 Barcelona, Spain.
[Suzuki, Nao] Univ Tokyo, Kavli Inst Phys & Math Universe IPMU, Kashiwa, Chiba, Japan.
[Croft, Rupert A. C.] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA.
[Caputi, Karina I.] Univ Groningen, Kapteyn Astron Inst, NL-9700 AV Groningen, Netherlands.
[Cassata, Paolo] Univ Valparaiso, Fac Ciencias, Inst Fis & Astron, Valparaiso, Chile.
[Cassata, Paolo; Ilbert, Olivier; Le Brun, Vincent; Le Fevre, Olivier; Tasca, Lidia A. M.; Tresse, Laurence] Aix Marseille Univ, CNRS, Lab Astrophys Marseille, UMR 7326, F-13388 Marseille, France.
[Garilli, Bianca] INAF IASF, I-20133 Milan, Italy.
[Koekemoer, Anton M.] Space Telescope Sci Inst, Baltimore, MD 21218 USA.
[Maccagni, Dario; Zamorani, Gianni; Zucca, Elena] INAF, Osservatorio Astron Bologna, I-40127 Bologna, Italy.
[Taniguchi, Yoshiaki] Ehime Univ, Res Ctr Space & Cosm Evolut, Matsuyama, Ehime 7908577, Japan.
RP Lee, KG (reprint author), Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany.
EM lee@mpia.de
RI White, Martin/I-3880-2015; Zucca, Elena/O-9396-2015; Croft,
Rupert/N-8707-2014;
OI White, Martin/0000-0001-9912-5070; Zucca, Elena/0000-0002-5845-8132;
Croft, Rupert/0000-0003-0697-2583; Lee, Khee-Gan/0000-0001-9299-5719
FU NERSC Center, Office of Science of the U.S. D.O.E. [DE-AC02-05CH11231]
FX K.G.L. and A.C.E. are grateful to the National Geographic Society for
travel support through the Waitt Grants program. This research used
resources of the NERSC Center, which is supported by the Office of
Science of the U.S. D.O.E. under Contract No. DE-AC02-05CH11231. We
would like to thank those of Hawaiian ancestry, on whose sacred mountain
we were privileged to be guests.
NR 44
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
EI 2041-8213
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD NOV 1
PY 2014
VL 795
IS 1
AR UNSP L12
DI 10.1088/2041-8205/795/1/L12
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AU2NO
UT WOS:000345455500012
ER
PT J
AU Turhollow, A
Perlack, R
Eaton, L
Langholtz, M
Brandt, C
Downing, M
Wright, L
Skog, K
Hellwinckel, C
Stokes, B
Lebow, P
AF Turhollow, Anthony
Perlack, Robert
Eaton, Laurence
Langholtz, Matthew
Brandt, Craig
Downing, Mark
Wright, Lynn
Skog, Kenneth
Hellwinckel, Chad
Stokes, Bryce
Lebow, Patricia
TI The updated billion-ton resource assessment
SO BIOMASS & BIOENERGY
LA English
DT Article
DE Biomass; Resource assessment; Crop residues; Forest residues; Energy
crops; Supply curves
AB This paper summarizes the results of an update to a resource assessment, published in 2005, commonly referred to as the Billion-Ton Study (BTS). The updated results are consistent with the 2005 BTS in terms of overall magnitude. The 2005 BTS projected between 860 and 1240 Tg of biomass available in the 2050 timeframe, while the Billion-Ton Update (BT2), for a price of 66 $ Mg-1, projected between 994 and 1483 Tg in 2030. For the BT2, forest residue biomass potential was determined to be less owing to tighter restrictions on forest residue supply including restrictions due to limited projected increase in traditional harvest for pulpwood and sawlogs. Crop residue potential was also determined to be less because of the consideration of soil carbon and not allowing residue removal from conventionally tilled corn acres. Energy crop potential was estimated to be much greater largely because of land availability and modeling of competition among various competing uses of the land. Generally, the scenario assumptions in the updated assessment are much more plausible to show a "billionton" resource, which would be sufficient to displace 30% or more of the country's present petroleum consumption and provide more than enough biomass to meet the 2022 requirements of the Renewable Fuel Standard. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Turhollow, Anthony; Perlack, Robert; Eaton, Laurence; Langholtz, Matthew; Downing, Mark] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Brandt, Craig] Oak Ridge Natl Lab, Biosci Sci Div, Oak Ridge, TN 37831 USA.
[Wright, Lynn; Lebow, Patricia] WrightLink Consulting, Ten Mile, TN 37880 USA.
[Skog, Kenneth] US Forest Serv, Forest Prod Lab, USDA, Madison, WI 53726 USA.
[Hellwinckel, Chad] Univ Tennessee, Dept Agr Econ, Knoxville, TN 37996 USA.
[Stokes, Bryce] CNJV, Golden, CO 80401 USA.
RP Turhollow, A (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA.
EM turhollowaf@ornl.gov
RI Eaton, Laurence/E-1471-2012;
OI Eaton, Laurence/0000-0003-1270-9626; Langholtz,
Matthew/0000-0002-8153-7154
FU Office of the Biomass Program, U.S. Department of Energy
[DE-AC05-00OR22725]
FX Support provided by the Office of the Biomass Program, U.S. Department
of Energy under contract DE-AC05-00OR22725. We thank Erin Webb for her
review of a draft of this article.
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0961-9534
EI 1873-2909
J9 BIOMASS BIOENERG
JI Biomass Bioenerg.
PD NOV
PY 2014
VL 70
BP 149
EP 164
DI 10.1016/j.biombioe.2014.09.007
PG 16
WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy &
Fuels
SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels
GA AU0YL
UT WOS:000345348000015
ER
PT J
AU Connatser, RM
Lewis, SA
Keiser, JR
Choi, JS
AF Connatser, Raynella M.
Lewis, Samuel A., Sr.
Keiser, James R.
Choi, Jae-Soon
TI Measuring bio-oil upgrade intermediates and corrosive species with
polarity-matched analytical approaches
SO BIOMASS & BIOENERGY
LA English
DT Article
DE Biomass; Capillary electrophoresis; Total acid number; Pyrolysis oil
upgrading; Carboxylic acid; Corrosion
ID FAST PYROLYSIS; CAPILLARY-ELECTROPHORESIS; BIOMASS; FRACTIONS; FUELS;
ACIDS
AB Integrating biofuels with conventional petroleum products requires improvements in processing to increase blendability with existing fuels. This work demonstrates analysis techniques for more hydrophilic bio-oil liquids that give improved quantitative and qualitative description of the total acid content and organic acid profiles. To protect infrastructure from damage and reduce the cost associated with upgrading, accurate determination of acid content and representative chemical compound analysis are central imperatives to assessing both the corrosivity and the progress toward removing oxygen and acidity in processed biomass liquids. Established techniques form an ample basis for bio-liquids evaluation. However, early in the upgrading process, the unique physical phases and varied hydrophilicity of many pyrolysis liquids can render analytical methods originally designed for use in petroleum-derived oils inadequate. In this work, the water solubility of the organic acids present in bio-oils is exploited in a novel extraction and titration technique followed by analysis on the water-based capillary electrophoresis (CE) platform. The modification of ASTM D664, the standard for Total Acid Number (TAN), to include aqueous carrier solvents improves the utility of that approach for quantifying acid content in hydrophilic bio-oils. Termed AMTAN (modified Total Acid Number), this technique offers 1.2% relative standard deviation and dynamic range comparable to the conventional ASTM method. The results of corrosion product evaluations using several different sources of real bio-oil are discussed in the context of the unique AMTAN and CE analytical approaches developed to facilitate those measurements. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Connatser, Raynella M.; Lewis, Samuel A., Sr.; Keiser, James R.; Choi, Jae-Soon] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA.
RP Connatser, RM (reprint author), Oak Ridge Natl Lab, NTRC Bldg,2360 Cherahala Blvd, Knoxville, TN 37932 USA.
EM connatserrm@ornl.gov
OI Choi, Jae-Soon/0000-0002-8162-4207
FU United States Department of Energy's Bioenergy Technologies Office
[DE-AC05-00OR22725]
FX This work was supported by funds provided by the United States
Department of Energy's Bioenergy Technologies Office under contract
number DE-AC05-00OR22725.
NR 30
TC 3
Z9 3
U1 1
U2 12
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0961-9534
EI 1873-2909
J9 BIOMASS BIOENERG
JI Biomass Bioenerg.
PD NOV
PY 2014
VL 70
BP 557
EP 563
DI 10.1016/j.biombioe.2014.09.003
PG 7
WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy &
Fuels
SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels
GA AU0YL
UT WOS:000345348000054
ER
PT J
AU Nguyen, L
Cafferty, KG
Searcy, EM
Spatari, S
AF Nguyen, Long
Cafferty, Kara G.
Searcy, Erin M.
Spatari, Sabrina
TI Uncertainties in Life Cycle Greenhouse Gas Emissions from Advanced
Biomass Feedstock Logistics Supply Chains in Kansas
SO ENERGIES
LA English
DT Article
DE life cycle assessment (LCA); lignocellulosic ethanol LCA; greenhouse gas
(GHG) emissions; biomass supply chains; uncertainty in biofuel LCA
ID ENVIRONMENTAL SUSTAINABILITY IMPACTS; CORN-STOVER; UNITED-STATES;
ETHANOL-PRODUCTION; SWITCHGRASS; DESIGNS; CARBON; SYSTEM; POWER
AB To meet Energy Independence and Security Act (EISA) cellulosic biofuel mandates, the United States will require an annual domestic supply of about 242 million Mg of biomass by 2022. To improve the feedstock logistics of lignocellulosic biofuels in order to access available biomass resources from areas with varying yields, commodity systems have been proposed and designed to deliver quality-controlled biomass feedstocks at preprocessing "depots". Preprocessing depots densify and stabilize the biomass prior to long-distance transport and delivery to centralized biorefineries. The logistics of biomass commodity supply chains could introduce spatially variable environmental impacts into the biofuel life cycle due to needing to harvest, move, and preprocess biomass from multiple distances that have variable spatial density. This study examines the uncertainty in greenhouse gas (GHG) emissions of corn stover logistics within a bio-ethanol supply chain in the state of Kansas, where sustainable biomass supply varies spatially. Two scenarios were evaluated each having a different number of depots of varying capacity and location within Kansas relative to a central commodity-receiving biorefinery to test GHG emissions uncertainty. The first scenario sited four preprocessing depots evenly across the state of Kansas but within the vicinity of counties having high biomass supply density. The second scenario located five depots based on the shortest depot-to-biorefinery rail distance and biomass availability. The logistics supply chain consists of corn stover harvest, collection and storage, feedstock transport from field to biomass preprocessing depot, preprocessing depot operations, and commodity transport from the biomass preprocessing depot to the biorefinery. Monte Carlo simulation was used to estimate the spatial uncertainty in the feedstock logistics gate-to-gate sequence. Within the logistics supply chain GHG emissions are most sensitive to the transport of the densified biomass, which introduces the highest variability (0.2-13 g CO(2)e/MJ) to life cycle GHG emissions. Moreover, depending upon the biomass availability and its spatial density and surrounding transportation infrastructure (road and rail), logistics can increase the variability in life cycle environmental impacts for lignocellulosic biofuels. Within Kansas, life cycle GHG emissions could range from 24 g CO(2)e/MJ to 41 g CO(2)e/MJ depending upon the location, size and number of preprocessing depots constructed. However, this range can be minimized through optimizing the siting of preprocessing depots where ample rail infrastructure exists to supply biomass commodity to a regional biorefinery supply system.
C1 [Nguyen, Long; Spatari, Sabrina] Drexel Univ, Philadelphia, PA 19104 USA.
[Cafferty, Kara G.; Searcy, Erin M.] Idaho Natl Lab, Dept Biofuels & Renewable Energy Technol, Idaho Falls, ID 83415 USA.
RP Spatari, S (reprint author), Drexel Univ, Philadelphia, PA 19104 USA.
EM lkn25@drexel.edu; kara.cafferty@inl.gov; erin.searcy@inl.gov;
spatari@drexel.edu
FU Freshman Design fellowship program at Drexel; Agriculture and Food
Research Initiative from the United States Department of Agriculture
National Institute of Food and Agriculture [2012-68005-19703]
FX The authors thank four anonymous reviewers for their insightful
comments, which improved this manuscript. Long Nguyen was supported by
the Freshman Design fellowship program at Drexel. He thanks Cem Sahin
and Aswathi John for the assistance with MATLAB programming, and James
G. Mitchell for discussion on this manuscript. This research was
supported by Agriculture and Food Research Initiative Competitive Grant
No. 2012-68005-19703 from the United States Department of Agriculture
National Institute of Food and Agriculture.
NR 48
TC 5
Z9 5
U1 3
U2 41
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 1996-1073
J9 ENERGIES
JI Energies
PD NOV
PY 2014
VL 7
IS 11
BP 7125
EP 7146
DI 10.3390/en7117125
PG 22
WC Energy & Fuels
SC Energy & Fuels
GA AU4EW
UT WOS:000345563200012
ER
PT J
AU Lee, S
Fischer, TB
Stokes, MR
Klingler, RJ
Ilavsky, J
McCarty, DK
Wigand, MO
Derkowski, A
Winans, RE
AF Lee, Sungwon
Fischer, Timothy B.
Stokes, M. Rebecca
Klingler, Robert J.
Ilavsky, Jan
McCarty, Douglas K.
Wigand, Marcus O.
Derkowski, Arkadiusz
Winans, Randall E.
TI Dehydration Effect on the Pore Size, Porosity, and Fractal Parameters of
Shale Rocks: Ultrasmall-Angle X-ray Scattering Study
SO ENERGY & FUELS
LA English
DT Article
ID LAYER CLAY-MINERALS; SURFACE-AREA; GAS-ADSORPTION; NEUTRON-SCATTERING;
ORGANIC-MATTER; SMECTITE; MONTMORILLONITE; DEHYDROXYLATION; TEMPERATURE;
USANS/SANS
AB The characterization of pore networks is extremely important in understanding transport and storage phenomena in unconventional gas and oil reservoir rocks. An ultrasmall-angle X-ray scattering (USAXS) measurement has been performed on Silurian black shales from the Baltic Basin, Poland, from a wide range of depths along a burial diagenetic sequence. This study provides insight into the nature of the pore structure, including the pore size distribution, total porosity, and fractal dimensions of the rocks. Samples were measured in both their air-dried state, equilibrated at similar to 50% relative humidity, and prior to dehydration by drying at 200 degrees C to make a comprehensive comparison of the pore structure changes induced by dehydration. Two trends were observed: porosity values decreased with depth as expected from the models of porosity evolution with burial and increased upon sample dehydration. The USAXS-measured porosity values show very good correspondence with the measurements by immersion porosity methods. The increase in porosity upon dehydration was found to be dominated by a volume increase in the pores of 1001000 nm diameter; the pores were filled by capillary water and clay-bound water in the air-dry state and liberated during drying. The geometric irregularities of poreshale rock interfaces have been quantified by fractal dimension. The removal of water from the sample also serves to increase the fractal dimension suggesting that the removal of water molecules increases the surface or mass irregularity. Implications to shale porosity measurement and shale gas models are discussed.
C1 [Lee, Sungwon; Klingler, Robert J.; Ilavsky, Jan; Winans, Randall E.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
[Fischer, Timothy B.; Stokes, M. Rebecca; McCarty, Douglas K.; Wigand, Marcus O.] Chevron Energy Technol Co, Houston, TX 77042 USA.
[Derkowski, Arkadiusz] Polish Acad Sci, Inst Geol Sci, PL-31002 Krakow, Poland.
RP Winans, RE (reprint author), Argonne Natl Lab, Xray Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM rewinans@anl.gov
RI Ilavsky, Jan/D-4521-2013
OI Ilavsky, Jan/0000-0003-1982-8900
FU Chevron Energy Technology Company; National Science Foundation
[NSF/CHE-1346572]; U.S. DOE [AC02-06CH11357]
FX The authors acknowledge the financial support of Chevron Energy
Technology Company. ChemMatCARS Sector 15 is supported by the National
Science Foundation under Grant NSF/CHE-1346572. Use of the Advanced
Photon Source, an Office of Science User Facility operated for the U.S.
Deparnilent of Energy (DOE) Office of Science by Argonne National
Laboratory, is supported by the U.S. DOE under Contract
DE-AC02-06CH11357. The authors thank Dr. Kevin Gilbert for many helpful
discussions. The authors also thank Tomasz Top& and Artur Kufigiewicz
for help in the sample collecting campaign and sample handling and
performing the immersion porosity measurements.
NR 45
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U1 1
U2 52
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0887-0624
EI 1520-5029
J9 ENERG FUEL
JI Energy Fuels
PD NOV
PY 2014
VL 28
IS 11
BP 6772
EP 6779
DI 10.1021/ef501427d
PG 8
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA AU2TB
UT WOS:000345469300009
ER
PT J
AU George, A
Morgan, TJ
Kandiyoti, R
AF George, Anthe
Morgan, Trevor J.
Kandiyoti, Rafael
TI Pyrolytic Reactions of Lignin within Naturally Occurring Plant Matrices:
Challenges in Biomass Pyrolysis Modeling Due to Synergistic Effects
SO ENERGY & FUELS
LA English
DT Article
ID FLUIDIZED-BED REACTOR; FLASH PYROLYSIS; CATALYTIC PYROLYSIS; COAL
PYROLYSIS; HEATING RATES; TRANSPORTATION FUELS; CHEMICAL-COMPOSITION;
SECONDARY REACTIONS; ORGANOSOLV LIGNIN; BITUMINOUS COALS
AB Systematically larger char yields were observed from the pyrolysis of chemically isolated lignins, compared to expected yields from the pyrolysis of lignins embedded in plant material. Naturally occurring lignins are known to be intermeshed with other plant constituents within the composite matrices of lignocellulosic biomass. An attempt was made to simulate their behavior by pyrolyzing pellets prepared from mixtures of lignin and cellulose powders. However, the results gave char yield trends that did not conform to trends observed when pyrolyzing plant derived biomass. These findings are interpreted in terms of entirely different reaction pathways operating when lignins are pyrolyzed within naturally occurring biomass, compared to pure lignins or composite particles made from mixtures of fine powders. It appears that char yield trends from the pyrolysis of lignocellulosic biomass are closely linked to the detailed morphology, as well as the chemical makeup, of the highly oxygenated plant derived material within which the lignin components of plants are embedded. The observed sensitivity of reaction pathways to plant specific structural (morphological) features poses added challenges in formulating realistic ab initio mathematical models for predicting the pyrolysis chemistry of lignocellulosic biomass.
C1 [George, Anthe] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94550 USA.
[Morgan, Trevor J.] Univ Hawaii Manoa, Hawaii Nat Energy Inst, Honolulu, HI 96822 USA.
[Kandiyoti, Rafael] Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn, London SW7 2AZ, England.
RP George, A (reprint author), Sandia Natl Labs, Combust Res Facil, 7011 East Ave, Livermore, CA 94550 USA.
EM ageorge@lbl.gov
NR 57
TC 7
Z9 7
U1 1
U2 19
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0887-0624
EI 1520-5029
J9 ENERG FUEL
JI Energy Fuels
PD NOV
PY 2014
VL 28
IS 11
BP 6918
EP 6927
DI 10.1021/ef501459c
PG 10
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA AU2TB
UT WOS:000345469300026
ER
PT J
AU Beste, A
AF Beste, Ariana
TI ReaxFF Study of the Oxidation of Softwood Lignin in View of Carbon Fiber
Production
SO ENERGY & FUELS
LA English
DT Article
ID REACTIVE FORCE-FIELD; MOLECULAR-DYNAMICS SIMULATIONS; INITIAL-STAGE;
KRAFT LIGNIN; COMBUSTION; PYROLYSIS; LINKAGES; VALORIZATION; MECHANISM;
KINETICS
AB We investigate the oxidative, thermal conversion of softwood lignin by performing molecular dynamics simulations based on a reactive force field (ReaxFF). The lignin samples are constructed from coniferyl alcohol units, which are connected through linkages that are randomly selected from a natural distribution of linkages in softwood. The goal of this work is to simulate the oxidative stabilization step during carbon fiber production from lignin precursor. We find that at simulation conditions where stabilization reactions occur, the lignin fragments have already undergone extensive degradation. The 5-5 linkage shows the highest reactivity toward cyclization and dehydrogenation.
C1 [Beste, Ariana] Univ Tennessee, Joint Inst Computat Sci, Oak Ridge, TN 37831 USA.
[Beste, Ariana] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Beste, A (reprint author), Univ Tennessee, Joint Inst Computat Sci, Oak Ridge, TN 37831 USA.
EM bestea@ornl.gov
OI Beste, Ariana/0000-0001-9132-792X
FU Oak Ridge National Laboratory by the Scientific User Facilities
Division, Office of Basic Energy Sciences, U.S. Department of Energy
FX This research was conducted at the Center for Nanophase Materials
Sciences, which is sponsored at Oak Ridge National Laboratory by the
Scientific User Facilities Division, Office of Basic Energy Sciences,
U.S. Department of Energy. This research was supported by an allocation
of advanced computing resources provided by the National Science
Foundation. The computations were performed on Kraken at the National
Institute for Computational Sciences (http://www.nics.tennessee.edu/).
NR 34
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U1 4
U2 59
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0887-0624
EI 1520-5029
J9 ENERG FUEL
JI Energy Fuels
PD NOV
PY 2014
VL 28
IS 11
BP 7007
EP 7013
DI 10.1021/ef501901p
PG 7
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA AU2TB
UT WOS:000345469300037
ER
PT J
AU Jensen, KR
Voorhees, KJ
Dempsey, EA
Burton, J
Ratcliff, MA
McCormick, RL
AF Jensen, Kirk R.
Voorhees, Kent J.
Dempsey, Edward A.
Burton, Jonathan
Ratcliff, Matthew A.
McCormick, Robert L.
TI Formation of 2,6-Di-tert-butyl-4-nitrophenol during Combustion of Diesel
Fuel Antioxidant Precursors
SO ENERGY & FUELS
LA English
DT Article
ID POLYCYCLIC AROMATIC-HYDROCARBONS; MONOCHROMATOR-MASS SPECTROMETRY;
PARTICULATE EXTRACTS; NITRO-DERIVATIVES; MUTAGENICITY; DISPOSITION;
CONTAMINANT; EMISSIONS; AIRBORNE; DBNP
AB Alkylphenolic antioxidants are commonly used as additives to stabilize gasoline, jet, and diesel fuels. The use of antioxidants in diesel, in particular, has become more common because of increased blending of cracked gas oils and blending of biodiesel. Combustion of these phenolic compounds may have unintended consequences. Nitroaromatic compounds are of particular interest because many are listed as known or suspected carcinogens. During the analysis of previously published data, the identity of an unknown peak was confirmed as 2,6-di-tert-butyl-4-nitrophenol (DBNP), an antioxidant derivative. To determine the source of DBNP, particulate matter samples from combustion of conventional diesel fuels spiked with two possible antioxidant precursors were collected and analyzed by electron monochromatormass spectrometry. Results show fuel spiked with either 2,6-di-tert-butylphenol or 4-methyl-2,6-di-tert-butylphenol produced higher levels of DBNP than control samples. Because fuels require antioxidant additives to prevent degradation, careful selection of antioxidants is important.
C1 [Jensen, Kirk R.; Voorhees, Kent J.; Dempsey, Edward A.] Colorado Sch Mines, Dept Chem & Geochem, Golden, CO 80401 USA.
[Burton, Jonathan; Ratcliff, Matthew A.; McCormick, Robert L.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Voorhees, KJ (reprint author), Colorado Sch Mines, Dept Chem & Geochem, Golden, CO 80401 USA.
EM kvoorhee@mines.edu
RI McCormick, Robert/B-7928-2011
FU Vehicle Technologies Office, Office of Energy Efficiency and Renewable
Energy, United States Department of Energy [DE-AC36-99GO10337]; National
Renewable Energy Laboratory
FX This work was supported by the Vehicle Technologies Office, Office of
Energy Efficiency and Renewable Energy, United States Department of
Energy, under Contract DE-AC36-99GO10337, with the National Renewable
Energy Laboratory. The authors also thank Dr. Nora Traviss, Dr. William
Navidi, and Dr. John Dane for their insights.
NR 26
TC 0
Z9 0
U1 0
U2 8
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0887-0624
EI 1520-5029
J9 ENERG FUEL
JI Energy Fuels
PD NOV
PY 2014
VL 28
IS 11
BP 7038
EP 7042
DI 10.1021/ef501043s
PG 5
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA AU2TB
UT WOS:000345469300040
ER
PT J
AU Wagnon, SW
Karwat, DMA
Wooldridge, MS
Westbrook, CK
AF Wagnon, Scott W.
Karwat, Darshan M. A.
Wooldridge, Margaret S.
Westbrook, Charles K.
TI Experimental and Modeling Study of Methyl trans-3-Hexenoate Autoignition
SO ENERGY & FUELS
LA English
DT Article
ID JET-STIRRED REACTOR; RAPID-COMPRESSION FACILITY; REFLECTED SHOCK-WAVES;
IGNITION DELAY TIMES; FLOW DIFFUSION FLAME; LOW-TEMPERATURE;
DOUBLE-BOND; BIODIESEL SURROGATE; CHEMICAL-KINETICS; N-HEPTANE
AB This work presents the results of an experimental and computational study of methyl trans-3-hexenoate autoignition. Experimental autoignition studies were conducted using the University of Michigan rapid compression facility. Pressure time histories were used to determine ignition delay times as a function of test gas composition and experimental conditions. The fuel/oxygen equivalence ratio and dilution level were phi = 0.3 and inert/O-2 = 3.76 (mole basis). End of compression conditions targeted an average pressure of 10.5 atm and temperatures ranging from 884 to 1085 K. A correlation in Arrhenius form was developed by regression analysis of the experimental data, where the ignition delay time is tau(ign) (ms) = 1.4 x 10(6) exp[30 100/((R) over bar T-(cal mol1 K1))] with a R-2 value of 0.99. Gas-sampling experiments were also conducted to measure stable intermediates formed during autoignition. A detailed reaction mechanism was developed and model predictions were compared to the experimental data. While ignition delay time predictions are in excellent agreement with the experimental data, the speciation results highlight uncertainties in the reaction chemistry of unsaturated esters and small hydrocarbon intermediates.
C1 [Wagnon, Scott W.; Karwat, Darshan M. A.; Wooldridge, Margaret S.] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA.
[Karwat, Darshan M. A.; Wooldridge, Margaret S.] Univ Michigan, Dept Aerosp Engn, Ann Arbor, MI 48109 USA.
[Westbrook, Charles K.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Wagnon, SW (reprint author), Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA.
EM swagnon@umich.edu
OI Wagnon, Scott/0000-0003-2172-5230
FU program of the Office of Basic Energy Sciences, Office of Science, U.S.
Depaanient of Energy [DE-SC0002645]
FX This material is based on work supported by the program of the Office of
Basic Energy Sciences, Office of Science, U.S. Depaanient of Energy,
under Award DE-SC0002645.
NR 53
TC 3
Z9 3
U1 3
U2 11
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0887-0624
EI 1520-5029
J9 ENERG FUEL
JI Energy Fuels
PD NOV
PY 2014
VL 28
IS 11
BP 7227
EP 7234
DI 10.1021/ef501806s
PG 8
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA AU2TB
UT WOS:000345469300060
ER
PT J
AU Gao, YF
Xu, JM
Yang, SC
Tang, XM
Zhou, Q
Ge, J
Xu, TF
Levinson, R
AF Gao, Yafeng
Xu, Jiangmin
Yang, Shichao
Tang, Xiaomin
Zhou, Quan
Ge, Jing
Xu, Tengfang
Levinson, Ronnen
TI Cool roofs in China: Policy review, building simulations, and
proof-of-concept experiments
SO ENERGY POLICY
LA English
DT Article
DE Cool roofs; China; Building energy efficiency standards; Energy savings;
Emission reductions
ID SOLAR REFLECTANCE; ENERGY SAVINGS; COMMERCIAL BUILDINGS; ENVELOPE
SURFACES; STRATEGIES; REDUCTION
AB While the concept of reflective roofing is not new to China, most Chinese cool roof research has taken place within the past decade. Some national and local Chinese building energy efficiency standards credit or recommend, but do not require, cool roofs or walls. EnergyPlus simulations of standard-compliant Chinese office and residential building prototypes in seven Chinese cities (Harbin, Changchun, Beijing, Chongqing, Shanghai, Wuhan, and Guangzhou) showed that substituting an aged white roof (albedo 0.6) for an aged gray roof (albedo 0.2) yields positive annual load, energy, energy cost, CO2, NO., and SO2 savings in all hot-summer cities (Chongqing, Shanghai, Wuhan, and Guangzhou).
Measurements in an office building in Chongqing in August 2012 found that a white coating lowered roof surface temperature by about 20 degrees C, and reduced daily air conditioning energy use by about 9%. Measurements in a naturally ventilated factory in Guangdong Province in August 2011 showed that a white coating decreased roof surface temperature by about 17 degrees C, lowered room air temperature by 1-3 degrees C, and reduced daily roof heat flux by 66%.
Simulation and experimental results suggest that cool roofs should be credited or prescribed in building energy efficiency standards for both hot summer/warm winter and hot summer/cold winter climates in China. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Gao, Yafeng; Xu, Jiangmin; Tang, Xiaomin] Chongqing Univ, Fac Urban Construct & Environm Engn, Minist Educ, Key Lab Gorges Reservoir Reg Ecoenvironm 3, Chongqing 400044, Peoples R China.
[Yang, Shichao; Zhou, Quan] Guangdong Prov Acad Bldg Res, Guangzhou 510500, Guangdong, Peoples R China.
[Ge, Jing; Xu, Tengfang; Levinson, Ronnen] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Levinson, R (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,MS 90R2000, Berkeley, CA 94720 USA.
EM gaoyafeng79@126.com; RML27@cornell.edu
FU Integrated Research of Key Technologies of Building Facade System
[2010DFA72740-03-06]; Fundamental Research Funds for the Central
Universities of China [106112014CDJZR210006, CDJZR12210013]; US-China
Clean Energy Research Center Building Energy Efficiency (CERC-BEE)
Consortium; Energy Efficiency and Renewable Energy, Office of Building
Technology, State, and Community Programs, of the U.S. Department of
Energy [DE-AC02-05CH11231]
FX The authors would like to express their thanks for financial support
from the Integrated Research of Key Technologies of Building Facade
System (2010DFA72740-03-06); from the Fundamental Research Funds for the
Central Universities of China (No. 106112014CDJZR210006 and No.
CDJZR12210013); and from the US-China Clean Energy Research Center
Building Energy Efficiency (CERC-BEE) Consortium. The study was further
supported by the Assistant Secretary for Energy Efficiency and Renewable
Energy, Office of Building Technology, State, and Community Programs, of
the U.S. Department of Energy under Contract no. DE-AC02-05CH11231. We
would also like to thank Changqing LIN (MOHURD Research Institute of
Standards and Norms); Hunter XU and Justin CHEN (Dow Chemical); Zhiqiang
WANG (Chongqing University); and Tianzhen HONG (Lawrence Berkeley
National Laboratory).
NR 77
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U1 4
U2 37
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0301-4215
EI 1873-6777
J9 ENERG POLICY
JI Energy Policy
PD NOV
PY 2014
VL 74
BP 190
EP 214
DI 10.1016/j.enpol.2014.05.036
PG 25
WC Energy & Fuels; Environmental Sciences; Environmental Studies
SC Energy & Fuels; Environmental Sciences & Ecology
GA AU2TL
UT WOS:000345470300020
ER
PT J
AU Koliba, C
DeMenno, M
Brune, N
Zia, A
AF Koliba, Christopher
DeMenno, Mercy
Brune, Nancy
Zia, Asim
TI The salience and complexity of building, regulating, and governing the
smart grid: Lessons from a statewide public-private partnership
SO ENERGY POLICY
LA English
DT Article
DE Smart gird; Energy policy; Public-private partnership; Regulation; Issue
salience; Technical complexity
ID AMERICAN STATES; DEREGULATION; TECHNOLOGY; METERS
AB Smart grid deployment unfolds within a diverse array of multi-institutional arrangements that may be too fragmented and decentralized to allow for the kind of large-scale and coordinated investments needed to properly deploy the smart grid. This case study provides an account of how one state arranged for and eventually deployed smart grid technology to over 85 percent of its resident. The study asks: does the deployment of the smart grid introduce new socio-political variables into the electricity distribution industry? To make sense of the socio-political variables shaping the industry and regulators, the Salience-Complexity Model is used to assess whether the smart grid raises or lowers the level of public scrutiny caste upon the industry (issue salience) and the level of technical capacity needed to execute and utilize the smart grid (technical complexity). The conclusions to be drawn from this study include: smart grid technology heightens the issue salience and the technical complexity of electricity distribution, but that the smart grid will likely not have a significant impact on the restructuring of electricity regulation. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Koliba, Christopher; Zia, Asim] Univ Vermont, Burlington, VT 05405 USA.
[DeMenno, Mercy] Sandia Natl Labs, Albuquerque, NM 87123 USA.
[Brune, Nancy] Kenny Guinn Ctr Policy Prior, Las Vegas, NV USA.
RP Koliba, C (reprint author), Univ Vermont, 103 Morrill Hall, Burlington, VT 05405 USA.
EM ckoliba@uvm.edu
FU National Science Foundation [DGE-1144388]
FX The authors would like to thank representatives from the following
organizations for their support for this project: Central Vermont Public
Service (CVPS), Green Mountain Power (GMP), Vermont Electric Power
Company (VELCO), Vermont Electric Cooperative (VEC), The Vermont Public
Service Board, the Vermont Department of Public Service, Sandia National
Laboratories, and the University of Vermont. They would also like to
thank the reviewers for their thoughtful comments an earlier version of
this paper. National Science Foundation grant number DGE-1144388
provided partial support for this research.
NR 24
TC 3
Z9 3
U1 3
U2 16
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0301-4215
EI 1873-6777
J9 ENERG POLICY
JI Energy Policy
PD NOV
PY 2014
VL 74
BP 243
EP 252
DI 10.1016/j.enpol.2014.09.013
PG 10
WC Energy & Fuels; Environmental Sciences; Environmental Studies
SC Energy & Fuels; Environmental Sciences & Ecology
GA AU2TL
UT WOS:000345470300024
ER
PT J
AU Moradi-Pari, E
Nasiriani, N
Fallah, YP
Famouri, P
Bossart, S
Dodrill, K
AF Moradi-Pari, Ehsan
Nasiriani, Neda
Fallah, Yaser P.
Famouri, Parviz
Bossart, Steve
Dodrill, Keith
TI Design, Modeling, and Simulation of On-Demand Communication Mechanisms
for Cyber-Physical Energy Systems
SO IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
LA English
DT Article
DE Communication networks; communication strategy; DNP3; dynamical systems;
protocols; PSCAD; smart grid; transient level simulation
ID LINEAR PREDICTION; POWER-SYSTEM; REQUIREMENTS
AB Advanced communication technology is the enabling factor for distributed sensing and control in smart grid. The performance of communication has a significant effect on the performance of the controllers that manage a power system. This effect is more profound when transient level behavior and critical applications are concerned. In these cases, an important issue is to design control-aware communication strategies for utilizing available communication technologies. Such strategies should describe what needs to be communicated when and between which nodes. In this paper, an "on-demand" strategy is presented that describes how communication subsystems should be configured, almost agnostically to the underlying technologies, to achieve significant performance improvement for the application. The on-demand method relies on the concept of error-dependent communication for tracking dynamical systems over communication networks. The paper also introduces the design of an embedded communication simulator integrated with PSCAD for cosimulation of communication strategies/protocols and power system components.
C1 [Moradi-Pari, Ehsan; Nasiriani, Neda; Fallah, Yaser P.; Famouri, Parviz] W Virginia Univ, Dept Comp Sci & Elect Engn, Morgantown, WV 26505 USA.
[Bossart, Steve; Dodrill, Keith] Natl Energy Technol Lab, Morgantown, WV 26505 USA.
RP Moradi-Pari, E (reprint author), W Virginia Univ, Dept Comp Sci & Elect Engn, Morgantown, WV 26505 USA.
EM ehmoradipari@mix.wvu.edu
NR 39
TC 7
Z9 8
U1 2
U2 18
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1551-3203
EI 1941-0050
J9 IEEE T IND INFORM
JI IEEE Trans. Ind. Inform.
PD NOV
PY 2014
VL 10
IS 4
BP 2330
EP 2339
DI 10.1109/TII.2014.2326080
PG 10
WC Automation & Control Systems; Computer Science, Interdisciplinary
Applications; Engineering, Industrial
SC Automation & Control Systems; Computer Science; Engineering
GA AT5PZ
UT WOS:000344995800034
ER
PT J
AU Oakes, MM
Baxter, LK
Duvall, RM
Madden, M
Xie, MJ
Hannigan, MP
Peel, JL
Pachon, JE
Balachandran, S
Russell, A
Long, TC
AF Oakes, Michelle M.
Baxter, Lisa K.
Duvall, Rachelle M.
Madden, Meagan
Xie, Mingjie
Hannigan, Michael P.
Peel, Jennifer L.
Pachon, Jorge E.
Balachandran, Siv
Russell, Armistead
Long, Thomas C.
TI Comparing Multipollutant Emissions-Based Mobile Source Indicators to
Other Single Pollutant and Multipollutant Indicators in Different Urban
Areas
SO INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
LA English
DT Article
DE multipollutant; air pollution; exposure metrics; source apportionment;
mobile sources; emissions-based indicators
ID POSITIVE MATRIX FACTORIZATION; SEMIVOLATILE ORGANIC-COMPOUNDS;
AIR-QUALITY MANAGEMENT; SOURCE-APPORTIONMENT; TIME-SERIES; PARTICULATE
MATTER; AMBIENT AIR; PM2.5 CHARACTERIZATION; SPECIATION METHODS;
MEASUREMENT ERROR
AB A variety of single pollutant and multipollutant metrics can be used to represent exposure to traffic pollutant mixtures and evaluate their health effects. Integrated mobile source indicators (IMSIs) that combine air quality concentration and emissions data have recently been developed and evaluated using data from Atlanta, Georgia. IMSIs were found to track trends in traffic-related pollutants and have similar or stronger associations with health outcomes. In the current work, we apply IMSIs for gasoline, diesel and total (gasoline + diesel) vehicles to two other cities (Denver, Colorado and Houston, Texas) with different emissions profiles as well as to a different dataset from Atlanta. We compare spatial and temporal variability of IMSIs to single-pollutant indicators (carbon monoxide (CO), nitrogen oxides (NOx) and elemental carbon (EC)) and multipollutant source apportionment factors produced by Positive Matrix Factorization (PMF). Across cities, PMF-derived and IMSI gasoline metrics were most strongly correlated with CO (r = 0.31-0.98), while multipollutant diesel metrics were most strongly correlated with EC (r = 0.80-0.98). NOx correlations with PMF factors varied across cities (r = 0.29-0.67), while correlations with IMSIs were relatively consistent (r = 0.61-0.94). In general, single-pollutant metrics were more correlated with IMSIs (r = 0.58-0.98) than with PMF-derived factors (r = 0.07-0.99). A spatial analysis indicated that IMSIs were more strongly correlated (r > 0.7) between two sites in each city than single pollutant and PMF factors. These findings provide confidence that IMSIs provide a transferable, simple approach to estimate mobile source air pollution in cities with differing topography and source profiles using readily available data.
C1 [Oakes, Michelle M.; Madden, Meagan; Long, Thomas C.] US EPA, Natl Ctr Environm Assessment, Res Triangle Pk, NC 27711 USA.
[Oakes, Michelle M.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37831 USA.
[Baxter, Lisa K.; Duvall, Rachelle M.] US EPA, Natl Exposure Res Lab, Res Triangle Pk, NC USA.
[Xie, Mingjie; Hannigan, Michael P.] Univ Colorado, Coll Engn & Appl Sci, Dept Mech Engn, Boulder, CO 80309 USA.
[Xie, Mingjie] Virginia Polytech Inst & State Univ, Dept Civil & Environm Engn, Blacksburg, VA 24061 USA.
[Peel, Jennifer L.] Colorado State Univ, Dept Environm & Radiol Hlth Sci, Ft Collins, CO 80523 USA.
[Pachon, Jorge E.] La Salle Univ, Program Environm Engn, Bogota, CO USA.
[Balachandran, Siv; Russell, Armistead] Georgia Inst Technol, Dept Civil & Environm Engn, Atlanta, GA 30332 USA.
[Balachandran, Siv] Union Concerned Scientists, Washington, DC 20006 USA.
RP Oakes, MM (reprint author), US EPA, Natl Ctr Environm Assessment, Res Triangle Pk, NC 27711 USA.
EM mmoakes17@gmail.com; baxter.lisa@epa.gov; duvall.rachelle@epa.gov;
meagankmadden@gmail.com; mingjie.xie@colorado.edu;
hannigan@colorado.edu; jennifer.peel@colostate.edu;
jpachon@unisalle.edu.co; siv@gatech.edu; ted.russell@ce.gatech.edu;
long.tom@epa.gov
FU Research Participation Program in the National Center for Environmental
Assessment, Office of Research and Development, U.S. Environmental
Protection Agency
FX The authors wish to thank Michael Breen, Steven J. Dutton, Jennifer
Richmond-Bryant, Reeder Sams, and John Vandenberg for their helpful
comments in review of this manuscript. The authors also wish to thank
Alison Eyth and Adam Reff at the U.S. Environmental Protection Agency
for their help retrieving mobile source emissions data. MMO was
supported by an appointment to the Research Participation Program in the
National Center for Environmental Assessment, Office of Research and
Development, U.S. Environmental Protection Agency, administered by the
Oak Ridge Institute for Science and Education (ORISE) through an
interagency agreement between the U.S. Department of Energy and
Environmental Protection Agency. Disclaimer: The views expressed are
those of the authors and do not necessarily reflect the views or
policies of the U.S. Environmental Protection Agency.
NR 38
TC 1
Z9 1
U1 3
U2 30
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 1660-4601
J9 INT J ENV RES PUB HE
JI Int. J. Environ. Res. Public Health
PD NOV
PY 2014
VL 11
IS 11
BP 11727
EP 11752
DI 10.3390/ijerph111111727
PG 26
WC Environmental Sciences; Public, Environmental & Occupational Health
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health
GA AU3RT
UT WOS:000345532000044
PM 25405595
ER
PT J
AU Cheng, MD
Allman, SL
Ludtka, GM
Avens, LR
AF Cheng, Meng-Dawn
Allman, Steve L.
Ludtka, Gerard M.
Avens, Larry R.
TI Collection of airborne particles by a high-gradient permanent magnetic
method
SO JOURNAL OF AEROSOL SCIENCE
LA English
DT Article
DE Aerosol; Collection; High-gradient magnetic; Permanent magnet;
Separation; Ultrafine particles
ID AIR-POLLUTION; SHANGHAI; DUST
AB We report on the use of magnetic force in collection of airborne particles by a high-gradient permanent magnetic separation (HGPMS) device. Three aerosol particles of different magnetic susceptibility (NaCl, CuO, and Fe3O4) were generated in the electrical mobility size range of 10-200 nm and were used to study HGPMS collection. One HGPMS matrix element, made of stainless steel wool, was used in the device configuration. Three flow rates were selected to simulate the environmental wind speeds of interest to the study. Magnetic force was found to exhibit an insignificant effect on the separation of NaCI particles, even in the HGPMS configuration. Diffusion was a major mechanism in the removal of the diamagnetic particles; however, diffusion is insignificant under the influence of a high-gradient magnetic field for paramagnetic or ferromagnetic particles. The HGPMS showed high-performance collection (>99%) of paramagnetic CuO and ferromagnetic Fe3O4 particles for particle sizes greater than or equal to 60 nm. As the wind speed increases, the influence of the magnetic force weakens, and the capability to remove particles from the gas stream diminishes. The results suggest that the HGPMS principle could be explored for development of an advanced miniaturized passive aerosol collector. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Cheng, Meng-Dawn] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Allman, Steve L.] Oak Ridge Natl Lab, BioSci Div, Oak Ridge, TN 37831 USA.
[Ludtka, Gerard M.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Avens, Larry R.] Oak Ridge Natl Lab, Int Secur & Anal Div, Oak Ridge, TN 37831 USA.
RP Cheng, MD (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008,MS 6036, Oak Ridge, TN 37831 USA.
EM chengmd@ornl.gov
RI Allman, Steve/A-9121-2011;
OI Allman, Steve/0000-0001-6538-7048; Cheng, Meng-Dawn/0000-0003-1407-9576
FU Laboratory Directed Research and Development Program of Oak Ridge
National Laboratory; U.S. Department of Energy [DE-ACO5-000R22725]
FX Bart Murphy manufactured the test magnets used in this project and
performed the magnetic field strength measurement using a Hall probe.
Shannon Mahurin performed the imaging on CuO particles using the Hitachi
HD-2000 STEM available at the Center for Nanophase Materials Sciences at
Oak Ridge National Laboratory. The authors greatly appreciated the
generous gift of Fe3O4 particles from J.W. Moon
and T.J. Phelps, both in the BioSciences Division at ORNL. This work
would not be possible without the funding from the Laboratory Directed
Research and Development Program of Oak Ridge National Laboratory,
managed by UT-Battelle, LLC, for the U.S. Department of Energy under
Contract no. DE-ACO5-000R22725. The authors also acknowledge useful
discussion with Conniesue Oldham and Dennis Mikel of the Office of Air
Quality Planning and Standards of the U.S. Environmental Protection
Agency.
NR 19
TC 1
Z9 1
U1 1
U2 20
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0021-8502
EI 1879-1964
J9 J AEROSOL SCI
JI J. Aerosol. Sci.
PD NOV
PY 2014
VL 77
BP 1
EP 9
DI 10.1016/j.jaerosci.2014.07.002
PG 9
WC Engineering, Chemical; Engineering, Mechanical; Environmental Sciences;
Meteorology & Atmospheric Sciences
SC Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric
Sciences
GA AU2YP
UT WOS:000345480700001
ER
PT J
AU Henderson, SA
Tetzlaff, MT
Pattanaprichakul, P
Fox, P
Torres-Cabala, CA
Bassett, RL
Prieto, VG
Richards, HW
Curry, JL
AF Henderson, Samuel A.
Tetzlaff, Michael T.
Pattanaprichakul, Penvadee
Fox, Patricia
Torres-Cabala, Carlos A.
Bassett, Roland L.
Prieto, Victor G.
Richards, Hunter W.
Curry, Jonathan L.
TI Detection of mitotic figures and G2+tumor nuclei with histone markers
correlates with worse overall survival in patients with Merkel cell
carcinoma
SO JOURNAL OF CUTANEOUS PATHOLOGY
LA English
DT Article
DE biomarker; H3K79me3T80ph; histones; Merkel cell carcinoma; PHH3
ID P63 EXPRESSION; PROGNOSTIC-SIGNIFICANCE; SINGLE INSTITUTION;
POLYOMAVIRUS; H3; INDEX; SPECIMENS; ACCURACY; FEATURES; UTILITY
AB BackgroundHigh mitotic figure count (MFC) correlates with low survival rate in Merkel cell carcinoma (MCC). However, the prognostic impact of histone biomarkers as surrogates of MFC in MCC is unknown. We evaluated the prognostic significance of the immunodetection of mitotic figures and of G2+ tumor nuclei with histone-associated mitotic markers H3K79me3T80ph (H3KT) and phosphohistone H3 (PHH3) in MCC.
MethodsImmunohistochemical analyses of H3KT and PHH3 and proliferative marker Ki-67 were performed in a series of 21 cases of MCC. The significance of the pathologic data and immunoreactivity with these markers was evaluated with Pearson correlation and paired Student t-test. Univariate Cox proportional hazards regression models were performed to assess the relationships between these markers and survival.
ResultsH3KT detected a higher number of mitotic figure (p<0.0001) and G2+ tumor nuclei (p<0.0052) than did PHH3. Furthermore, the MFC combined with G2+ tumor nuclei detected with H3KT compared to PHH3 and manual MFC was a significant predictor of impaired survival in patients with MCC (p=0.035;HR=1.0172), corresponding to a 1.72% increased risk of death for each unit increase in H3KT.
ConclusionsBiomarker analysis of proliferative rates with histone markers may have relevance in stratifying risk in patients with MCC.
C1 [Henderson, Samuel A.; Tetzlaff, Michael T.; Pattanaprichakul, Penvadee; Fox, Patricia; Torres-Cabala, Carlos A.; Bassett, Roland L.; Prieto, Victor G.; Curry, Jonathan L.] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA.
[Pattanaprichakul, Penvadee] Mahidol Univ, Siriraj Hosp, Fac Med, Bangkok 10700, Thailand.
[Richards, Hunter W.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Curry, JL (reprint author), Univ Texas MD Anderson Canc Ctr MDACC, Unit 85, 1515 Holcombe Blvd, Houston, TX 77030 USA.
EM jlcurry@mdanderson.org
RI Fox, Patricia/I-2208-2014
OI Fox, Patricia/0000-0002-5264-1876
FU NIH/NCI [P30 CA016672]
FX This work was supported in part by the NIH/NCI under award number P30
CA016672.
NR 35
TC 3
Z9 4
U1 1
U2 1
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0303-6987
EI 1600-0560
J9 J CUTAN PATHOL
JI J. Cutan. Pathol.
PD NOV
PY 2014
VL 41
IS 11
BP 846
EP 852
DI 10.1111/cup.12383
PG 7
WC Dermatology; Pathology
SC Dermatology; Pathology
GA AU4PO
UT WOS:000345594100006
PM 25263506
ER
PT J
AU Raghunathan, S
Wood, OR
Mangat, P
Verduijn, E
Philipsen, V
Hendrickx, E
Jonckheere, R
Goldberg, KA
Benk, MP
Kearney, P
Levinson, Z
Smith, BW
AF Raghunathan, Sudharshanan
Wood, Obert R., II
Mangat, Pawitter
Verduijn, Erik
Philipsen, Vicky
Hendrickx, Eric
Jonckheere, Rik
Goldberg, Kenneth A.
Benk, Markus P.
Kearney, Patrick
Levinson, Zachary
Smith, Bruce W.
TI Experimental measurements of telecentricity errors in
high-numerical-aperture extreme ultraviolet mask images
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
LA English
DT Article
ID MULTILAYERS
AB Nontelecentric illumination in extreme ultraviolet (EUV) lithography leads to pattern shifts through focus called telecentricity errors. As the industry moves toward finer pitch structures and higher numerical apertures (NA) to improve resolution, the effects of telecentricity errors become more significant. These telecentricity errors are dependent on pattern pitch, pattern type, lens aberrations, mask stack, to name a few. In this paper, a novel technique to measure telecentricity errors using EUV mask images from an actinic mask inspection tool, called the SEMATECH High NA Actinic Reticle Review Project (SHARP) is presented. SHARP is SEMATECH's second generation actinic mask imaging tool developed by Lawrence Berkeley National Laboratory. The SHARP can image masks at different numerical aperture settings, even beyond the currently available scanner NA of 0.33 (high-NA EUV) and also has a set of programmable illuminator choices. A tuned multilayer EUV mask blank was fabricated with test structures optimized for imaging on SHARP. The test structures were designed to cover a variety of critical dimensions and pitches. The mask design was fabricated on a tuned multilayer blank optimized for NA > 0.4. The mask was fabricated at Advanced Mask Technology Center and imaged on the SHARP. SHARP images were analyzed in software customized for edge position extraction of features. Pattern shifts through focus were calculated for a variety of pitches under different NA and illumination settings. The results show a monotonic increase in pattern shifts as NA increases. Also, at a given NA, the pattern shift is dependent on pattern pitch. The paper provides a detailed discussion on the experiment setup, analysis of the results and applicability of these results to high volume manufacturing of semiconductor devices using production EUV scanners. (C) 2014 American Vacuum Society.
C1 [Raghunathan, Sudharshanan; Wood, Obert R., II; Mangat, Pawitter] GLOBALFOUNDRIES, Malta, NY 12020 USA.
[Verduijn, Erik] GLOBALFOUNDRIES, B-3001 Leuven, Belgium.
[Philipsen, Vicky; Hendrickx, Eric; Jonckheere, Rik] IMEC VZW, B-3001 Leuven, Belgium.
[Goldberg, Kenneth A.; Benk, Markus P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr X Ray Opt, Berkeley, CA 94720 USA.
[Kearney, Patrick] SEMATECH, Albany, NY 12203 USA.
[Levinson, Zachary; Smith, Bruce W.] Rochester Inst Technol, Microsyst Engn Program, Rochester, NY 14623 USA.
RP Raghunathan, S (reprint author), GLOBALFOUNDRIES, 400 Stonebreak Rd Extens, Malta, NY 12020 USA.
EM sudhar.raghunathan@globalfoundries.com
FU SEMATECH; Office of Science, Office of Basic Energy Sciences, of the
U.S. Department of Energy [DE-AC02-05CH11231]
FX Measurements performed on the SHARP EUV microscope were funded by
SEMATECH and conducted by the Center for X-Ray Optics at the Lawrence
Berkeley National Laboratory Advanced Light Source synchrotron radiation
facility. The Advanced Light Source is supported by the Director, Office
of Science, Office of Basic Energy Sciences, of the U.S. Department of
Energy under Contract No. DE-AC02-05CH11231.
NR 10
TC 9
Z9 9
U1 0
U2 3
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 1071-1023
J9 J VAC SCI TECHNOL B
JI J. Vac. Sci. Technol. B
PD NOV
PY 2014
VL 32
IS 6
AR 06F801
DI 10.1116/1.4901876
PG 8
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Physics, Applied
SC Engineering; Science & Technology - Other Topics; Physics
GA AU3KU
UT WOS:000345512800018
ER
PT J
AU Rahman, A
Liu, MZ
Black, CT
AF Rahman, Atikur
Liu, Mingzhao
Black, Charles T.
TI Block copolymer self assembly for design and vapor-phase synthesis of
nanostructured antireflective surfaces
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
LA English
DT Article
ID THIN-FILMS; DEPOSITION; GROWTH; NANOPARTICLES; LITHOGRAPHY; SILICON;
ARRAYS
AB The authors combine block copolymer self assembly with vapor-phase synthesis for design of antireflective thin film coatings. The nanometer-scale features in patterns formed by cylindrical phase block copolymers provide surface topography for vapor-phase growth of semiconductors and metals by oblique angle physical vapor deposition. The authors control the dimensions and density of the synthesized nanotextures through selection of copolymer molecular weight. A layer of aligned, densely packed germanium wire arrays with diameters much smaller than optical wavelengths acts as an effective optical medium, significantly reducing reflections and improving light coupling into a silicon substrate. A synthesized layer of uniformly sized silver nanoparticles provides antireflection instead through optical excitation of localized surface plasmons. The block copolymer-based synthesis approach allows control of particle shape anisotropy, tuning the frequency of plasmon resonances and expanding the spectral range of antireflection. (C) 2014 American Vacuum Society.
C1 [Rahman, Atikur; Liu, Mingzhao; Black, Charles T.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Rahman, A (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
EM ctblack@bnl.gov
RI Liu, Mingzhao/A-9764-2011
OI Liu, Mingzhao/0000-0002-0999-5214
FU U.S. Department of Energy, Office of Basic Energy Sciences
[DE-AC02-98CH10886]
FX Research carried out at the Center for Functional Nanomaterials,
Brookhaven National Laboratory, which is supported by the U.S.
Department of Energy, Office of Basic Energy Sciences, under Contract
No. DE-AC02-98CH10886.
NR 30
TC 3
Z9 3
U1 3
U2 33
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 1071-1023
J9 J VAC SCI TECHNOL B
JI J. Vac. Sci. Technol. B
PD NOV
PY 2014
VL 32
IS 6
AR 06FE02
DI 10.1116/1.4896335
PG 5
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Physics, Applied
SC Engineering; Science & Technology - Other Topics; Physics
GA AU3KU
UT WOS:000345512800031
ER
PT J
AU Wei, DM
Edgar, JH
Briggs, DP
Retterer, ST
Srijanto, B
Hensley, DK
Meyer, HM
AF Wei, Daming
Edgar, James H.
Briggs, Dayrl P.
Retterer, Scott T.
Srijanto, Bernadeta
Hensley, Dale K.
Meyer, Harry M., III
TI Atomic layer deposition TiO2-Al2O3 stack: An improved gate dielectric on
Ga-polar GaN metal oxide semiconductor capacitors
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
LA English
DT Article
ID INTERFACE PROPERTIES; FILMS; OXIDATION
AB This research focuses on the benefits and properties of TiO2-Al2O3 nanostack thin films deposited on Ga2O3/GaN by plasma-assisted atomic layer deposition (PA-ALD) for gate dielectric development. This combination of materials achieved a high dielectric constant, a low leakage current, and a low interface trap density. Correlations were sought between the films' structure, composition, and electrical properties. The gate dielectrics were approximately 15nm thick and contained 5.1 nm TiO2, 7.1nm Al2O3, and 2nm Ga2O3 as determined by spectroscopic ellipsometry. The interface carbon concentration, as measured by x-ray photoelectron spectroscopy depth profile, was negligible for GaN pretreated by thermal oxidation in O-2 for 30 min at 850 degrees C. The RMS roughness slightly increased after thermal oxidation and remained the same after ALD of the nanostack, as determined by atomic force microscopy. The dielectric constant of TiO2-Al2O3 on Ga2O3/GaN was increased to 12.5 compared to that of pure Al2O3 (8-9) on GaN. In addition, the nanostack's capacitance-voltage (C-V) hysteresis was small, with a total trap density of 8.74 x 10(11) cm(-2). The gate leakage current density (J - 2.81 x 10(-8) A/cm(2)) was low at +1V gate bias. These results demonstrate the promising potential of PA-ALD deposited TiO2/Al2O3 for serving as the gate dielectric on Ga2O3/GaN based MOS devices. (C) 2014 American Vacuum Society.
C1 [Wei, Daming; Edgar, James H.] Kansas State Univ, Dept Chem Engn, Manhattan, KS 66506 USA.
[Briggs, Dayrl P.; Retterer, Scott T.; Srijanto, Bernadeta; Hensley, Dale K.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Nanofabricat Res Lab, Oak Ridge, TN 37831 USA.
[Meyer, Harry M., III] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Wei, DM (reprint author), Kansas State Univ, Dept Chem Engn, Durland Hall, Manhattan, KS 66506 USA.
EM edgarjh@ksu.edu
RI Retterer, Scott/A-5256-2011; Hensley, Dale/A-6282-2016; Srijanto,
Bernadeta/D-4213-2016
OI Retterer, Scott/0000-0001-8534-1979; Hensley, Dale/0000-0001-8763-7765;
Srijanto, Bernadeta/0000-0002-1188-1267
FU Office of Naval Research (ONR) [N00014-09-1-1160]; Scientific User
Facilities Division, Office of Basic Energy Sciences, U.S. Department of
Energy [CNMS2013-334]; Office of FreedomCAR and Vehicle Technologies, as
part of the High Temperature Materials Laboratory User Program, Oak
Ridge National Laboratory; U.S. Department of Energy [DE-AC05-00OR22725]
FX This study was supported by the Office of Naval Research (ONR) with
Grant No. N00014-09-1-1160. Part of this research was conducted at the
Center for Nanophase Materials Sciences under proposal ID: CNMS2013-334,
which is sponsored at Oak Ridge National Laboratory by the Scientific
User Facilities Division, Office of Basic Energy Sciences, U.S.
Department of Energy. The XPS work was sponsored by the Assistant
Secretary for Energy Efficiency and Renewable Energy, Office of
FreedomCAR and Vehicle Technologies, as part of the High Temperature
Materials Laboratory User Program, Oak Ridge National Laboratory,
managed by UT-Battelle, LLC, for the U.S. Department of Energy under
Contract No. DE-AC05-00OR22725.
NR 30
TC 0
Z9 0
U1 7
U2 32
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 1071-1023
J9 J VAC SCI TECHNOL B
JI J. Vac. Sci. Technol. B
PD NOV
PY 2014
VL 32
IS 6
AR 060602
DI 10.1116/1.4897919
PG 4
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Physics, Applied
SC Engineering; Science & Technology - Other Topics; Physics
GA AU3KU
UT WOS:000345512800056
ER
PT J
AU Aryal, D
Etampawala, T
Perahia, D
Grest, GS
AF Aryal, Dipak
Etampawala, Thusitha
Perahia, Dvora
Grest, Gary S.
TI Phase Behavior of a Single Structured Ionomer Chain in Solution
SO MACROMOLECULAR THEORY AND SIMULATIONS
LA English
DT Article
ID SULFONATED PENTABLOCK COPOLYMER; POLYSTYRENE IONOMERS;
MOLECULAR-DYNAMICS; BLOCK-COPOLYMERS; MEMBRANES; WATER; CONDUCTIVITY;
SIMULATIONS; MORPHOLOGY; POLYMERS
AB Structured polymers offer a means to tailor transport pathways within mechanically stable manifolds. The building block of such a membrane is examined, namely a single large pentablock co-polymer that consists of a center block of a randomly sulfonated polystyrene, designed for transport, tethered to poly-ethylene-r-propylene and end-capped by poly-t-butyl styrene, for mechanical stability, using molecular dynamics simulations. The polymer structure in a cyclohexane-heptane mixture, a technologically viable solvent, and in water, a poor solvent for all segments and a ubiquitous substance is extracted. In all solvents the pentablock collapsed into nearly spherical aggregates where the ionic block is segregated. In hydrophobic solvents, the ionic block resides in the center, surrounded by swollen intermix of flexible and end blocks. In water all blocks are collapsed with the sulfonated block residing on the surface. Our results demonstrate that solvents drive different local nano-segregation, providing a gateway to assemble membranes with controlled topology.
C1 [Aryal, Dipak; Etampawala, Thusitha; Perahia, Dvora] Clemson Univ, Dept Chem, Clemson, SC 29634 USA.
[Grest, Gary S.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Perahia, D (reprint author), Clemson Univ, Dept Chem, Clemson, SC 29634 USA.
EM dperahi@g.clemson.edu
FU DOE [DE-FG02-12ER46843]; Office of Science of the United States
Department of Energy [DE-AC02-05CH11231]; U.S. Department of Energy's
National Nuclear Security Administration [DE-AC04-94AL85000]
FX The authors gratefully acknowledge financial support from DOE Grant No.
DE-FG02-12ER46843. This research used resources at the National Energy
Research Scientific Computing Center, which is supported by the Office
of Science of the United States Department of Energy under Contract No.
DE-AC02-05CH11231. This work was made possible by advanced computational
resources deployed and maintained by Clemson Computing and Information
Technology. This work was performed, in part, at the Center for
Integrated Nanotechnologies, a U.S. Department of Energy and 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 U.S.
Department of Energy's National Nuclear Security Administration under
Contract No. DE-AC04-94AL85000.
NR 29
TC 5
Z9 5
U1 5
U2 28
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1022-1344
EI 1521-3919
J9 MACROMOL THEOR SIMUL
JI Macromol. Theory Simul.
PD NOV
PY 2014
VL 23
IS 9
BP 543
EP 549
DI 10.1002/mats.201400046
PG 7
WC Polymer Science
SC Polymer Science
GA AU2IY
UT WOS:000345442500001
ER
PT J
AU Gabelli, SB
Boto, A
Kuhns, VH
Bianchet, MA
Farinelli, F
Aripirala, S
Yoder, J
Jakoncic, J
Tomaselli, GF
Amzel, LM
AF Gabelli, Sandra B.
Boto, Agedi
Kuhns, Victoria Halperin
Bianchet, Mario A.
Farinelli, Federica
Aripirala, Srinivas
Yoder, Jesse
Jakoncic, Jean
Tomaselli, Gordon F.
Amzel, L. Mario
TI Regulation of the Na(V)1.5 cytoplasmic domain by calmodulin
SO NATURE COMMUNICATIONS
LA English
DT Article
ID SODIUM-CHANNEL NA(V)1.5; FACTOR HOMOLOGOUS FACTOR; SOLUTION NMR
STRUCTURE; C-TERMINAL DOMAIN; X-RAY STRUCTURES; EF-HAND DOMAIN;
APO-CALMODULIN; CARDIAC EXCITABILITY; IQ MOTIF; MODULATION
AB Voltage-gated sodium channels (Na-V) underlie the rapid upstroke of action potentials in excitable tissues. Binding of channel-interactive proteins is essential for controlling fast and long-term inactivation. In the structure of the complex of the carboxy-terminal portion of Na(V)1.5 (CTNa(V)1.5) with calmodulin (CaM)-Mg2+ reported here, both CaM lobes interact with the CTNa(V)1.5. On the basis of the differences between this structure and that of an inactivated complex, we propose that the structure reported here represents a non-inactivated state of the CTNaV, that is, the state that is poised for activation. Electrophysiological characterization of mutants further supports the importance of the interactions identified in the structure. Isothermal titration calorimetry experiments show that CaM binds to CTNa(V)1.5 with high affinity. The results of this study provide unique insights into the physiological activation and the pathophysiology of Na-V channels.
C1 [Gabelli, Sandra B.; Boto, Agedi; Bianchet, Mario A.; Aripirala, Srinivas; Yoder, Jesse; Amzel, L. Mario] Johns Hopkins Univ, Sch Med, Dept Biophys & Biophys Chem, Struct Enzymol & Thermodynam Grp, Baltimore, MD 21205 USA.
[Gabelli, Sandra B.; Kuhns, Victoria Halperin; Farinelli, Federica; Tomaselli, Gordon F.] Johns Hopkins Univ, Sch Med, Dept Med, Div Cardiol, Baltimore, MD 21205 USA.
[Gabelli, Sandra B.] Johns Hopkins Univ, Sch Med, Dept Oncol, Baltimore, MD 21287 USA.
[Bianchet, Mario A.] Johns Hopkins Univ, Sch Med, Dept Neurol, Baltimore, MD 21287 USA.
[Jakoncic, Jean] Brookhaven Natl Lab, Photon Sci Directorate, Natl Synchrotron Light Source, Upton, NY 11973 USA.
RP Gabelli, SB (reprint author), Johns Hopkins Univ, Sch Med, Dept Biophys & Biophys Chem, Struct Enzymol & Thermodynam Grp, 725 N Wolfe St,WBSB 608, Baltimore, MD 21205 USA.
EM gabelli@jhmi.edu; gtomasel@jhmi.edu; mamzel@jhmi.edu
RI Bianchet, Mario/K-2131-2015; Gabelli, Sandra/A-3705-2008
OI Bianchet, Mario/0000-0001-9032-7549; Gabelli, Sandra/0000-0003-1205-5204
FU NIH [HL050411]; US Department of Energy, Office of Science, Office of
Basic Energy Sciences [DE-AC02-06CH11357]; National Institute of General
Medical Sciences, National Institute of Health [GM-0080]; US Department
of energy [DE AC02-98CH10886]; NHI NIDDK center [P30 DK089502]
FX This work was funded in part by NIH HL050411. Use of the Advanced Photon
Source at Argonne National Laboratory was supported by the US Department
of Energy, Office of Science, Office of Basic Energy Sciences, under
Contract No. DE-AC02-06CH11357. Use of the Lilly Research Laboratories
Collaborative Access Team beamline at Sector 31 of the Advanced Photon
Source was provided by Eli Lilly Company, which operates the facility.
Data collection was carried out at beamline X6A, funded by the National
Institute of General Medical Sciences, National Institute of Health
under agreement GM-0080. The NSLS, Brookhaven National Laboratory is
supported by the US Department of energy under contract No. DE
AC02-98CH10886. We acknowledge the use and services of the JHU SOM Mass
Spectrometry and Proteomics Core, supported by the NHI NIDDK center
grant P30 DK089502. The rendition of Fig. 8 was contributed by T.
Phelps, M.S.
NR 44
TC 9
Z9 9
U1 4
U2 12
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2041-1723
J9 NAT COMMUN
JI Nat. Commun.
PD NOV
PY 2014
VL 5
AR 5126
DI 10.1038/ncomms6126
PG 11
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA AU5BL
UT WOS:000345622000001
PM 25370050
ER
PT J
AU Kuttiyiel, KA
Sasaki, K
Su, D
Wu, LJ
Zhu, YM
Adzic, RR
AF Kuttiyiel, Kurian A.
Sasaki, Kotaro
Su, Dong
Wu, Lijun
Zhu, Yimei
Adzic, Radoslav R.
TI Gold-promoted structurally ordered intermetallic palladium cobalt
nanoparticles for the oxygen reduction reaction
SO NATURE COMMUNICATIONS
LA English
DT Article
ID MEMBRANE FUEL-CELLS; SUPPORTED PD-CO; ALLOY ELECTROCATALYSTS; SHELL
ELECTROCATALYSTS; HEAT-TREATMENT; PARTICLE-SIZE; MONOLAYER; CATALYSTS;
PLATINUM; ALKALINE
AB Considerable efforts to make palladium and palladium alloys active catalysts and a possible replacement for platinum have had a marginal success. Here we report on a structurally ordered Au10Pd40Co50 catalyst that exhibits comparable activity to conventional platinum catalysts in both acid and alkaline media. Electron microscopic techniques demonstrate that, at elevated temperatures, palladium cobalt nanoparticles undergo an atomic structural transition from core-shell to a rare intermetallic ordered structure with twin boundaries forming stable {111}, {110} and {100} facets via addition of gold atoms. The superior stability of this catalyst compared with platinum after 10,000 potential cycles in alkaline media is attributed to the atomic structural order of PdCo nanoparticles along with protective effect of clusters of gold atoms on the surface. This strategy of making ordered palladium intermetallic alloy nanoparticles can be used in diverse heterogeneous catalysis where particle size and structural stability matter.
C1 [Kuttiyiel, Kurian A.; Sasaki, Kotaro; Adzic, Radoslav R.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
[Su, Dong] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
[Wu, Lijun; Zhu, Yimei] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA.
RP Sasaki, K (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
EM ksasaki@bnl.gov; adzic@bnl.gov
FU US Department of Energy, Office of Basic Energy Science, Material
Science and Engineering Division, Division of Chemical Sciences,
Geosciences and Biosciences Division [DE-AC02-98CH10886]; Synchrotron
Catalysis Consortium, US Department of Energy [DE-FG02-05ER15688]
FX This research was performed at Brookhaven National laboratory under
contract DE-AC02-98CH10886 with the US Department of Energy, Office of
Basic Energy Science, Material Science and Engineering Division,
Division of Chemical Sciences, Geosciences and Biosciences Division.
Beam lines X18A at the NSLS are supported in part by the Synchrotron
Catalysis Consortium, US Department of Energy Grant No
DE-FG02-05ER15688.
NR 53
TC 24
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U1 25
U2 201
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2041-1723
J9 NAT COMMUN
JI Nat. Commun.
PD NOV
PY 2014
VL 5
AR 5185
DI 10.1038/ncomms6185
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA AU5BY
UT WOS:000345623300001
PM 25373826
ER
PT J
AU Liu, Z
Amani, M
Najmaei, S
Xu, Q
Zou, XL
Zhou, W
Yu, T
Qiu, CY
Birdwell, AG
Crowne, FJ
Vajtai, R
Yakobson, BI
Xia, ZH
Dubey, M
Ajayan, PM
Lou, J
AF Liu, Zheng
Amani, Matin
Najmaei, Sina
Xu, Quan
Zou, Xiaolong
Zhou, Wu
Yu, Ting
Qiu, Caiyu
Birdwell, A. Glen
Crowne, Frank J.
Vajtai, Robert
Yakobson, Boris I.
Xia, Zhenhai
Dubey, Madan
Ajayan, Pulickel M.
Lou, Jun
TI Strain and structure heterogeneity in MoS2 atomic layers grown by
chemical vapour deposition
SO NATURE COMMUNICATIONS
LA English
DT Article
ID METAL DICHALCOGENIDE NANOSHEETS; MONOLAYER MOLYBDENUM-DISULFIDE;
TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; RAMAN-SPECTROSCOPY;
UNIAXIAL STRAIN; PHASE GROWTH; THIN MOS2; BASIS-SET; PHOTOLUMINESCENCE
AB Monolayer molybdenum disulfide (MoS2) has attracted tremendous attention due to its promising applications in high-performance field-effect transistors, phototransistors, spintronic devices and nonlinear optics. The enhanced photoluminescence effect in monolayer MoS2 was discovered and, as a strong tool, was employed for strain and defect analysis in MoS2. Recently, large-size monolayer MoS2 has been produced by chemical vapour deposition, but has not yet been fully explored. Here we systematically characterize chemical vapour deposition-grown MoS2 by photoluminescence spectroscopy and mapping and demonstrate non-uniform strain in single-crystalline monolayer MoS2 and strain-induced bandgap engineering. We also evaluate the effective strain transferred from polymer substrates to MoS2 by three-dimensional finite element analysis. Furthermore, our work demonstrates that photoluminescence mapping can be used as a non-contact approach for quick identification of grain boundaries in MoS2.
C1 [Liu, Zheng] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore.
[Liu, Zheng] Nanyang Technol Univ, NOVITAS, Nanoelect Ctr Excellence, Sch Elect & Elect Engn, Singapore 639798, Singapore.
[Liu, Zheng] CINTRA CNRS NTU THALES, UMI 3288, Singapore 637553, Singapore.
[Amani, Matin; Birdwell, A. Glen; Crowne, Frank J.; Dubey, Madan] US Army, Res Lab, Sensors & Elect Devices Directorate, Adelphi, MD 20783 USA.
[Najmaei, Sina; Zou, Xiaolong; Vajtai, Robert; Yakobson, Boris I.; Ajayan, Pulickel M.; Lou, Jun] Rice Univ, Dept Mat Sci & Nanoengn, Houston, TX 77005 USA.
[Xu, Quan; Xia, Zhenhai] Univ N Texas, Dept Mat Sci & Engn, Denton, TX 76203 USA.
[Xu, Quan] China Univ Petr, Inst New Energy, Beijing 102200, Peoples R China.
[Zhou, Wu] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Yu, Ting; Qiu, Caiyu] Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore.
RP Lou, J (reprint author), Rice Univ, Dept Mat Sci & Nanoengn, Houston, TX 77005 USA.
EM madan.dubey.civ@mail.mil; ajayan@rice.edu; jlou@rice.edu
RI Liu, Zheng/C-1813-2014; Zhou, Wu/D-8526-2011
OI Liu, Zheng/0000-0002-8825-7198; Zhou, Wu/0000-0002-6803-1095
FU Welch Foundation [C-1716]; NSF [ECCS-1327093, CNS-0821727, OCI-0959097];
U.S. Army Research Office MURI grant [W911NF-11-1-0362]; U.S. Army
Research Lab (ARL) Director's Strategic Initiative (DSI) program on
interfaces in stacked 2D atomic layered materials; U.S. Office of Naval
Research MURI grant [N000014-09-1-1066]; Nanoelectronics Research
Corporation [S201006]; Wigner Fellowship through the Laboratory Directed
Research and Development Program of Oak Ridge National Laboratory;
ORNL's Center for Nanophase Materials Sciences (CNMS); Scientific User
Facilities Division, Office of Basic Energy Sciences, U.S. DOE; FAME
Center; MARCO, one of six centres of STARnet; DARPA; Singapore National
Research Foundation under NRF RF Award [NRF-RF2013-08]; Nanyang
Technological University [M4081137.070]
FX This work was supported by the Welch Foundation grant C-1716, the NSF
grant ECCS-1327093, the U.S. Army Research Office MURI grant
W911NF-11-1-0362, the U.S. Army Research Lab (ARL) Director's Strategic
Initiative (DSI) program on interfaces in stacked 2D atomic layered
materials, the U.S. Office of Naval Research MURI grant
N000014-09-1-1066, the Nanoelectronics Research Corporation contract
S201006, a Wigner Fellowship through the Laboratory Directed Research
and Development Program of Oak Ridge National Laboratory, managed by
UT-Battelle, LLC, for the U.S. DOE (W.Z.), and through a user project
supported by ORNL's Center for Nanophase Materials Sciences (CNMS),
which is sponsored by the Scientific User Facilities Division, Office of
Basic Energy Sciences, U.S. DOE. This work was also supported in part by
the FAME Center, one of six centres of STARnet, a Semiconductor Research
Corporation program sponsored by MARCO and DARPA. This work was also
supported by the Singapore National Research Foundation under NRF RF
Award No. NRF-RF2013-08, the start-up funding from Nanyang Technological
University (M4081137.070). The computations were performed at the
Cyberinfrastructure for Computational Research funded by NSF under Grant
CNS-0821727 and the Data Analysis and Visualization Cyberinfrastructure
funded by NSF under Grant OCI-0959097.
NR 41
TC 77
Z9 77
U1 22
U2 226
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2041-1723
J9 NAT COMMUN
JI Nat. Commun.
PD NOV
PY 2014
VL 5
AR 5246
DI 10.1038/ncomms6246
PG 9
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA AU5NJ
UT WOS:000345653500001
PM 25404060
ER
PT J
AU Ren, AM
Kosutic, M
Rajashankar, KR
Frener, M
Santner, T
Westhof, E
Micura, R
Patel, DJ
AF Ren, Aiming
Kosutic, Marija
Rajashankar, Kanagalaghatta R.
Frener, Marina
Santner, Tobias
Westhof, Eric
Micura, Ronald
Patel, Dinshaw J.
TI In-line alignment and Mg2+ coordination at the cleavage site of the
env22 twister ribozyme
SO NATURE COMMUNICATIONS
LA English
DT Article
ID HEPATITIS-DELTA-VIRUS; SELF-CLEAVING RIBOZYMES; GROUP-II INTRON;
CRYSTAL-STRUCTURE; HAIRPIN RIBOZYME; STRUCTURAL BASIS; SATELLITE RNA;
SPLICING RNA; CATALYSIS; MECHANISMS
AB Small self-cleaving nucleolytic ribozymes contain catalytic domains that accelerate site-specific cleavage/ligation of phosphodiester backbones. We report on the 2.9-angstrom crystal structure of the env22 twister ribozyme, which adopts a compact tertiary fold stabilized by co-helical stacking, double-pseudoknot formation and long-range pairing interactions. The U-A cleavage site adopts a splayed-apart conformation with the modelled 2'-O of U positioned for in-line attack on the adjacent to-be-cleaved P-O5' bond. Both an invariant guanosine and a Mg2+ are directly coordinated to the non-bridging phosphate oxygens at the U-A cleavage step, with the former positioned to contribute to catalysis and the latter to structural integrity. The impact of key mutations on cleavage activity identified an invariant guanosine that contributes to catalysis. Our structure of the in-line aligned env22 twister ribozyme is compared with two recently reported twister ribozymes structures, which adopt similar global folds, but differ in conformational features around the cleavage site.
C1 [Ren, Aiming; Patel, Dinshaw J.] Mem Sloan Kettering Canc Ctr, Struct Biol Program, New York, NY 10065 USA.
[Kosutic, Marija; Frener, Marina; Santner, Tobias; Micura, Ronald] Leopold Franzens Univ, Inst Organ Chem, A-6020 Innsbruck, Austria.
[Kosutic, Marija; Frener, Marina; Santner, Tobias; Micura, Ronald] Ctr Mol Biosci Innsbruck CMBI, A-6020 Innsbruck, Austria.
[Rajashankar, Kanagalaghatta R.] Cornell Univ, Argonne Natl Lab, Adv Photon Source, Dept Chem & Chem Biol,NE CAT, Argonne, IL 60439 USA.
[Westhof, Eric] Univ Strasbourg, CNRS, Inst Mol & Cellular Biol, Architecture & React ARN, F-67084 Strasbourg, France.
RP Patel, DJ (reprint author), Mem Sloan Kettering Canc Ctr, Struct Biol Program, New York, NY 10065 USA.
EM ronald.micura@uibk.ac.at; pateld@mskcc.org
FU National Institute of General Medical Sciences [P41 GM103403]; National
Institutes of Health; US DOE [DE-AC02-06CH11357]; US National Institutes
of Health [1 U19 CA179564]; Austrian Science Fund FWF [P21641, I1040]
FX We thank Dr Dhirendra Simanshu for help with refinement protocols. X-ray
diffraction studies were conducted at the Advanced Photon Source on the
Northeastern Collaborative Access Team beamlines, which are supported by
a grant from the National Institute of General Medical Sciences (P41
GM103403) from the National Institutes of Health. 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. The research was supported by US National Institutes
of Health grant 1 U19 CA179564 to D.J.P. and the Austrian Science Fund
FWF (P21641, I1040) to R.M. M.K. is an ESR fellow of the EU FP7Marie
Curie ITN RNPnet programme (289007).
NR 37
TC 20
Z9 20
U1 2
U2 20
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2041-1723
J9 NAT COMMUN
JI Nat. Commun.
PD NOV
PY 2014
VL 5
AR 5534
DI 10.1038/ncomms6534
PG 10
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA AU5BP
UT WOS:000345622500011
PM 25410397
ER
PT J
AU Generous, N
Fairchild, G
Deshpande, A
Del Valle, SY
Priedhorsky, R
AF Generous, Nicholas
Fairchild, Geoffrey
Deshpande, Alina
Del Valle, Sara Y.
Priedhorsky, Reid
TI Global Disease Monitoring and Forecasting with Wikipedia
SO PLOS COMPUTATIONAL BIOLOGY
LA English
DT Article
ID MALARIA SURVEILLANCE; HEALTH INFORMATION; GOOGLE TRENDS; INTERNET;
SEARCH; INFLUENZA; QUERIES; OUTBREAK; PATTERNS; BURDEN
AB Infectious disease is a leading threat to public health, economic stability, and other key social structures. Efforts to mitigate these impacts depend on accurate and timely monitoring to measure the risk and progress of disease. Traditional, biologically-focused monitoring techniques are accurate but costly and slow; in response, new techniques based on social internet data, such as social media and search queries, are emerging. These efforts are promising, but important challenges in the areas of scientific peer review, breadth of diseases and countries, and forecasting hamper their operational usefulness. We examine a freely available, open data source for this use: access logs from the online encyclopedia Wikipedia. Using linear models, language as a proxy for location, and a systematic yet simple article selection procedure, we tested 14 location-disease combinations and demonstrate that these data feasibly support an approach that overcomes these challenges. Specifically, our proof-of-concept yields models with r(2) up to 0.92, forecasting value up to the 28 days tested, and several pairs of models similar enough to suggest that transferring models from one location to another without retraining is feasible. Based on these preliminary results, we close with a research agenda designed to overcome these challenges and produce a disease monitoring and forecasting system that is significantly more effective, robust, and globally comprehensive than the current state of the art.
C1 [Generous, Nicholas; Fairchild, Geoffrey; Deshpande, Alina; Del Valle, Sara Y.; Priedhorsky, Reid] Los Alamos Natl Lab, Def Syst & Anal Div, Los Alamos, NM 87131 USA.
RP Generous, N (reprint author), Los Alamos Natl Lab, Def Syst & Anal Div, Los Alamos, NM 87131 USA.
EM generous@lanl.gov
RI Trivedi, Kruti/E-7558-2015
FU NIH/NIGMS/MIDAS [U01-GM097658-01]; Defense Threat Reduction Agency
(DTRA); Joint Science and Technology Office for Chemical and Biological
Defense [CB3656, CB10007]; U.S. Department of Energy through the LANL
LDRD Program; Department of Energy [DE-AC52-06NA25396]
FX This work is supported in part by NIH/NIGMS/MIDAS under grant
U01-GM097658-01 and the Defense Threat Reduction Agency (DTRA), Joint
Science and Technology Office for Chemical and Biological Defense under
project numbers CB3656 and CB10007. Data collected using QUAC; this
functionality was supported by the U.S. Department of Energy through the
LANL LDRD Program. Computation used HPC resources provided by the LANL
Institutional Computing Program. LANL is operated by Los Alamos National
Security, LLC for the Department of Energy under contract
DE-AC52-06NA25396. Approved for public release: LA-UR similar to
14-22535. The funders had no role in study design, data collection and
analysis, decision to publish, or preparation of the manuscript.
NR 104
TC 18
Z9 18
U1 3
U2 29
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1553-734X
EI 1553-7358
J9 PLOS COMPUT BIOL
JI PLoS Comput. Biol.
PD NOV
PY 2014
VL 10
IS 11
AR e1003892
DI 10.1371/journal.pcbi.1003892
PG 16
WC Biochemical Research Methods; Mathematical & Computational Biology
SC Biochemistry & Molecular Biology; Mathematical & Computational Biology
GA AU2NE
UT WOS:000345454400005
PM 25392913
ER
PT J
AU Graw, F
Balagopal, A
Kandathil, AJ
Ray, SC
Thomas, DL
Ribeiro, RM
Perelson, AS
AF Graw, Frederik
Balagopal, Ashwin
Kandathil, Abraham J.
Ray, Stuart C.
Thomas, David L.
Ribeiro, Ruy M.
Perelson, Alan S.
TI Inferring Viral Dynamics in Chronically HCV Infected Patients from the
Spatial Distribution of Infected Hepatocytes
SO PLOS COMPUTATIONAL BIOLOGY
LA English
DT Article
ID HEPATITIS-C VIRUS; ACTING ANTIVIRAL AGENTS; I INTERFERON RESPONSE;
RIPLEYS K-FUNCTION; HEPATOCELLULAR PROLIFERATION; REPLICATION COMPLEX;
RNA REPLICATION; POINT-PROCESSES; HUMAN LIVER; CELLS
AB Chronic liver infection by hepatitis C virus (HCV) is a major public health concern. Despite partly successful treatment options, several aspects of intrahepatic HCV infection dynamics are still poorly understood, including the preferred mode of viral propagation, as well as the proportion of infected hepatocytes. Answers to these questions have important implications for the development of therapeutic interventions. In this study, we present methods to analyze the spatial distribution of infected hepatocytes obtained by single cell laser capture microdissection from liver biopsy samples of patients chronically infected with HCV. By characterizing the internal structure of clusters of infected cells, we are able to evaluate hypotheses about intrahepatic infection dynamics. We found that individual clusters on biopsy samples range in size from 4-50 infected cells. In addition, the HCV RNA content in a cluster declines from the cell that presumably founded the cluster to cells at the maximal cluster extension. These observations support the idea that HCV infection in the liver is seeded randomly (e. g. from the blood) and then spreads locally. Assuming that the amount of intracellular HCV RNA is a proxy for how long a cell has been infected, we estimate based on models of intracellular HCV RNA replication and accumulation that cells in clusters have been infected on average for less than a week. Further, we do not find a relationship between the cluster size and the estimated cluster expansion time. Our method represents a novel approach to make inferences about infection dynamics in solid tissues from static spatial data.
C1 [Graw, Frederik; Ribeiro, Ruy M.; Perelson, Alan S.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Graw, Frederik] Heidelberg Univ, Ctr Modeling & Simulat Biosci, Heidelberg, Germany.
[Balagopal, Ashwin; Kandathil, Abraham J.; Ray, Stuart C.; Thomas, David L.] Johns Hopkins Univ, Dept Med, Baltimore, MD USA.
RP Graw, F (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
EM frederik.graw@bioquant.uni-heidelberg.de; asp@lanl.gov
RI Ray, Stuart/B-7527-2008;
OI Ray, Stuart/0000-0002-1051-7260; Ribeiro, Ruy/0000-0002-3988-8241
FU U.S. Department of Energy [DE-AC52-06NA25396]; NIH [GM103452, AI078881,
OD011095, AI028433, HL109334]; Center for Modeling and Simulation in the
Biosciences (BIOMS); National Institute of Health (NIH) [DA016078,
AI081544, EY001765]; European Union; Fundacao para a Ciencia e
Tecnologia, Portugal [PCOFUND-GA-2009-246542.604605]
FX Portions of this work were performed under the auspices of the U.S.
Department of Energy under contract DE-AC52-06NA25396 and supported by
NIH grants GM103452 (RMR, ASP), AI078881, OD011095, AI028433, and
HL109334 (ASP). FG was also funded by the Center for Modeling and
Simulation in the Biosciences (BIOMS). The research is also supported by
National Institute of Health (NIH) grants DA016078 (DLT and AB) and
AI081544 (AB) and EY001765 (WilmerCore Grant). RMR received partial
funding from the European Union and from Fundacao para a Ciencia e
Tecnologia, Portugal, under grant no PCOFUND-GA-2009-246542.604605. The
funders had no role in study design, data collection and analysis,
decision to publish, or preparation of the manuscript.
NR 59
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U2 8
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1553-734X
EI 1553-7358
J9 PLOS COMPUT BIOL
JI PLoS Comput. Biol.
PD NOV
PY 2014
VL 10
IS 11
AR e1003934
DI 10.1371/journal.pcbi.1003934
PG 15
WC Biochemical Research Methods; Mathematical & Computational Biology
SC Biochemistry & Molecular Biology; Mathematical & Computational Biology
GA AU2NE
UT WOS:000345454400023
PM 25393308
ER
PT J
AU Jonkers, W
Leeder, AC
Ansong, C
Wang, YX
Yang, F
Starr, TL
Camp, DG
Smith, RD
Glass, NL
AF Jonkers, Wilfried
Leeder, Abigail C.
Ansong, Charles
Wang, Yuexi
Yang, Feng
Starr, Trevor L.
Camp, David G., II
Smith, Richard D.
Glass, N. Louise
TI HAM-5 Functions As a MAP Kinase Scaffold during Cell Fusion in
Neurospora crassa
SO PLOS GENETICS
LA English
DT Article
ID ACTIVATED PROTEIN-KINASE; HYPHAL FUSION; APPRESSORIUM FORMATION;
FUNGICIDE RESISTANCE; FUSARIUM-OXYSPORUM; FILAMENTOUS FUNGUS;
NUCLEAR-DYNAMICS; GENE; YEAST; NETWORK
AB Cell fusion in genetically identical Neurospora crassa germlings and in hyphae is a highly regulated process involving the activation of a conserved MAP kinase cascade that includes NRC-1, MEK-2 and MAK-2. During chemotrophic growth in germlings, the MAP kinase cascade members localize to conidial anastomosis tube (CAT) tips every,8 minutes, perfectly out of phase with another protein that is recruited to the tip: SOFT, a recently identified scaffold for the MAK-1 MAP kinase pathway in Sordaria macrospora. How the MAK-2 oscillation process is initiated, maintained and what proteins regulate the MAP kinase cascade is currently unclear. A global phosphoproteomics approach using an allele of mak-2 (mak-2(Q100G)) that can be specifically inhibited by the ATP analog 1NM-PP1 was utilized to identify MAK-2 kinase targets in germlings that were potentially involved in this process. One such putative target was HAM-5, a protein of unknown biochemical function. Previously, Dham-5 mutants were shown to be deficient for hyphal fusion. Here we show that HAM-5-GFP co-localized with NRC-1, MEK-2 and MAK-2 and oscillated with identical dynamics from the cytoplasm to CAT tips during chemotropic interactions. In the Dmak-2 strain, HAM-5-GFP localized to punctate complexes that did not oscillate, but still localized to the germling tip, suggesting that MAK-2 activity influences HAM-5 function/localization. However, MAK-2-GFP showed cytoplasmic and nuclear localization in a Dham-5 strain and did not localize to puncta. Via co-immunoprecipitation experiments, HAM-5 was shown to physically interact with NRC-1, MEK-2 and MAK-2, suggesting that it functions as a scaffold/transport hub for the MAP kinase cascade members for oscillation and chemotropic interactions during germling and hyphal fusion in N. crassa. The identification of HAM-5 as a scaffold-like protein will help to link the activation of MAK-2 cascade to upstream factors and proteins involved in this intriguing process of fungal communication.
C1 [Jonkers, Wilfried; Leeder, Abigail C.; Glass, N. Louise] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA.
[Ansong, Charles; Wang, Yuexi; Yang, Feng; Camp, David G., II; Smith, Richard D.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Starr, Trevor L.; Glass, N. Louise] Univ Calif Berkeley, Energy Biosci Inst, Berkeley, CA 94720 USA.
RP Jonkers, W (reprint author), Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA.
EM Lglass@berkeley.edu
RI Smith, Richard/J-3664-2012
OI Smith, Richard/0000-0002-2381-2349
FU National Science Foundation [MCB 1121311]; US DOE office of Biological
and Environmental Research; NIH [P41 GM103493-11]; Battelle Memorial
Institute for the DOE [DE-AC05-76RLO 1830]
FX The work in this study was funded by a National Science Foundation grant
to NLG (MCB 1121311). Portions of this work were supported by the US DOE
office of Biological and Environmental Research, and also NIH grant P41
GM103493-11 (RDS). Proteomics work was performed in the EMSL, a DOE-BER
national scientific user facility PNNL. PNNL is a multi-program national
laboratory operated by Battelle Memorial Institute for the DOE under
contract DE-AC05-76RLO 1830. The funders had no role in study design,
data collection and analysis, decision to publish, or preparation of the
manuscript.
NR 79
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PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1553-7390
EI 1553-7404
J9 PLOS GENET
JI PLoS Genet.
PD NOV
PY 2014
VL 10
IS 11
AR e1004783
DI 10.1371/journal.pgen.1004783
PG 16
WC Genetics & Heredity
SC Genetics & Heredity
GA AU2NL
UT WOS:000345455200030
PM 25412208
ER
PT J
AU Bachmann, B
Kritcher, AL
Benedetti, LR
Falcone, RW
Glenn, S
Hawreliak, J
Izumi, N
Kraus, D
Landen, OL
Le Pape, S
Ma, T
Perez, F
Swift, D
Doppner, T
AF Bachmann, B.
Kritcher, A. L.
Benedetti, L. R.
Falcone, R. W.
Glenn, S.
Hawreliak, J.
Izumi, N.
Kraus, D.
Landen, O. L.
Le Pape, S.
Ma, T.
Perez, F.
Swift, D.
Doeppner, T.
TI Using penumbral imaging to measure micrometer size plasma hot spots in
Gbar equation of state experiments on the National Ignition Facility
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB We have developed an experimental platform for absolute equation of state measurements up to Gbar pressures on the National Ignition Facility (NIF) within the Fundamental Science Program. We use a symmetry-tuned hohlraum drive to launch a spherical shock wave into a solid CH sphere. Streaked radiography is the primary diagnostic to measure the density change at the shock front as the pressure increases towards smaller radii. At shock stagnation in the center of the capsule, we observe a short and bright x-ray self emission from high density (similar to 50 g/cm(3)) plasma at similar to 1 keV. Here, we present results obtained with penumbral imaging which has been carried out to characterize the size of the hot spot emission. This allows extending existing NIF diagnostic capabilities for spatial resolution (currently similar to 10 mu m) at higher sensitivity. At peak emission we find the hot spot radius to be as small as 5.8 +/-1 mu m, corresponding to a convergence ratio of 200. (C) 2014 AIP Publishing LLC.
C1 [Bachmann, B.; Kritcher, A. L.; Benedetti, L. R.; Glenn, S.; Hawreliak, J.; Izumi, N.; Landen, O. L.; Le Pape, S.; Ma, T.; Perez, F.; Swift, D.; Doeppner, T.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Falcone, R. W.; Kraus, D.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Falcone, R. W.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Bachmann, B (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM bachmann2@llnl.gov
RI lepape, sebastien/J-3010-2015; IZUMI, Nobuhiko/J-8487-2016
OI IZUMI, Nobuhiko/0000-0003-1114-597X
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; LLNL-LDRD [11-ER-050, 13-ERD-073]; SSAA
[DE-FG52-06NA26212]
FX This work performed under the auspices of the U.S. Department of Energy
by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344. The authors acknowledge support from LLNL-LDRD Grant
Nos. 11-ER-050 and 13-ERD-073 and SSAA Contract No. DE-FG52-06NA26212.
NR 9
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U2 25
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D614
DI 10.1063/1.4891303
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000031
PM 25430190
ER
PT J
AU Baker, KL
Glendinning, SG
Guymer, TM
Martinez, D
Moore, AS
Dittrich, TR
MacLaren, SA
Felker, S
Seugling, R
Doane, D
Wallace, R
Whiting, N
Sorce, C
AF Baker, K. L.
Glendinning, S. G.
Guymer, T. M.
Martinez, D.
Moore, A. S.
Dittrich, T. R.
MacLaren, S. A.
Felker, S.
Seugling, R.
Doane, D.
Wallace, R.
Whiting, N.
Sorce, C.
TI Single line-of-sight dual energy backlighter for mix width experiments
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID INSTABILITY EXPERIMENTS; NOVA LASER
AB We present a diagnostic technique used to spatially multiplex two x-ray radiographs of an object onto a detector along a single line-of-sight. This technique uses a thin, <2 mu m, cosputtered backlighter target to simultaneously produce both Ni and Zn He-alpha emission. A Ni picket fence filter, 500 mu m wide bars and troughs, is then placed in front of the detector to pass only the Ni He-alpha emission in the bar region and both energies in the trough region thereby spatially multiplexing the two radiographs on a single image. Initial experimental results testing the backlighter spectrum are presented along with simulated images showing the calculated radiographic images though the nickel picket fence filter which are used to measure the mix width in an accelerated nickel foam. (C) 2014 AIP Publishing LLC.
C1 [Baker, K. L.; Glendinning, S. G.; Martinez, D.; Dittrich, T. R.; MacLaren, S. A.; Felker, S.; Seugling, R.; Doane, D.; Wallace, R.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Guymer, T. M.; Moore, A. S.] AWE, Reading RG7 4PR, Berks, England.
[Whiting, N.; Sorce, C.] Univ Rochester, Laser Energet Lab, Rochester, NY 14627 USA.
RP Baker, KL (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM baker7@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344. We would like to acknowledge the OMEGA operations
staff for their help with the experiments that were conducted and
General Atomics for making the picket fence filter.
NR 9
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D621
DI 10.1063/1.4893005
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000038
PM 25430197
ER
PT J
AU Barrios, MA
Regan, SP
Fournier, KB
Epstein, R
Smith, R
Lazicki, A
Rygg, R
Fratanduono, DE
Eggert, J
Park, HS
Huntington, C
Bradley, DK
Landen, OL
Collins, GW
AF Barrios, M. A.
Regan, S. P.
Fournier, K. B.
Epstein, R.
Smith, R.
Lazicki, A.
Rygg, R.
Fratanduono, D. E.
Eggert, J.
Park, H. -S.
Huntington, C.
Bradley, D. K.
Landen, O. L.
Collins, G. W.
TI X-ray area backlighter development at the National Ignition Facility
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID LASER
AB 1D spectral imaging was used to characterize the K-shell emission of Z approximate to 30-35 and Z approximate to 40-42 laser-irradiated foils at the National Ignition Facility. Foils were driven with up to 60 kJ of 3 omega light, reaching laser irradiances on target between 0.5 and 20 x 10(15) W/cm(2). Laser-to-X-ray conversion efficiency (CE) into the He-alpha line (plus satellite emission) of 1.0%-1.5% and 0.15%-0.2% was measured for Z approximate to 30-32 and Z approximate to 40-42, respectively. Measured CE into He-alpha (plus satellite emission) of Br (Z = 35) compound foils (either KBr or RbBr) ranged between 0.16% and 0.29%. Measured spectra are compared with 1D non-local thermodynamic equilibrium atomic kinetic and radiation transport simulations, providing a fast and accurate predictive capability. (C) 2014 AIP Publishing LLC.
C1 [Barrios, M. A.; Fournier, K. B.; Smith, R.; Lazicki, A.; Rygg, R.; Fratanduono, D. E.; Eggert, J.; Park, H. -S.; Huntington, C.; Bradley, D. K.; Landen, O. L.; Collins, G. W.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Regan, S. P.; Epstein, R.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
RP Barrios, MA (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM barriosgarci1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX The authors would like to thank the members of the NIF operations team
for their support and effort for these experiments. This work was done
under the auspices of the U.S. Department of Energy by Lawrence
Livermore National Laboratory under Contract No. DE-AC52-07NA27344.
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D502
DI 10.1063/1.4891713
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000017
PM 25430176
ER
PT J
AU Beiersdorfer, P
Magee, EW
Brown, GV
Hell, N
Trabert, E
Widmann, K
AF Beiersdorfer, P.
Magee, E. W.
Brown, G. V.
Hell, N.
Traebert, E.
Widmann, K.
TI Extended-range grazing-incidence spectrometer for high-resolution
extreme ultraviolet measurements on an electron beam ion trap
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID SOFT-X-RAY; CHARGED IONS; LINES; REGION; SPECTROSCOPY; EMISSION;
SPECTRA; FE
AB A high-resolution grazing-incidence grating spectrometer has been implemented on the Livermore electron beam ion traps for performing very high-resolution measurements in the soft x-ray and extreme ultraviolet region spanning from below 10 angstrom to above 300 angstrom. The instrument operates without an entrance slit and focuses the light emitted by highly charged ions located in the roughly 50 mu m wide electron beam onto a cryogenically cooled back-illuminated charge-coupled device detector. The measured line widths are below 0.025 angstrom above 100 angstrom, and the resolving power appears to be limited by the source size and Doppler broadening of the trapped ions. Comparisons with spectra obtained with existing grating spectrometers show an order of magnitude improvement in spectral resolution. (C) 2014 AIP Publishing LLC.
C1 [Beiersdorfer, P.; Magee, E. W.; Brown, G. V.; Hell, N.; Traebert, E.; Widmann, K.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Hell, N.] Univ Erlangen Nurnberg, Dr Remeis Sternwarte & ECAP, D-96049 Bamberg, Germany.
RP Beiersdorfer, P (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
FU (U.S.) Department of Energy (DOE) by LLNL [DE-AC52-07NA27344]; National
Aeronautics and Space Administration's (NASA) APRA Program;
Bundesministerium fur Wirtschaft und Technologie under DLR [50 OR 1113]
FX This work was performed under the auspices of the (U.S.) Department of
Energy (DOE) by LLNL under Contract No. DE-AC52-07NA27344 and supported
by National Aeronautics and Space Administration's (NASA) APRA Program.
N.H. received support from the Bundesministerium fur Wirtschaft und
Technologie under DLR Grant No. 50 OR 1113.
NR 28
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U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E422
DI 10.1063/1.4891875
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000170
PM 25430329
ER
PT J
AU Bell, RE
AF Bell, Ronald E.
TI Development and operation of a high-throughput accurate-wavelength
lens-based spectrometer
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB A high-throughput spectrometer for the 400-820 nm wavelength range has been developed for charge exchange recombination spectroscopy or general spectroscopy. A large 2160 mm(-1) grating is matched with fast f/1.8 200 mm lenses, which provide stigmatic imaging. A precision optical encoder measures the grating angle with an accuracy <= 0.075 arc sec. A high quantum efficiency low-etaloning CCD detector allows operation at longer wavelengths. A patch panel allows input fibers to interface with interchangeable fiber holders that attach to a kinematic mount at the entrance slit. Computer-controlled hardware allows automated control of wavelength, timing, f-number, automated data collection, and wavelength calibration. (C) 2014 AIP Publishing LLC.
C1 Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Bell, RE (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM rbell@pppl.gov
FU U. S. Department of Energy [DE-AC02-09CH11466]
FX The author would like to acknowledge the support of B. C. Stratton. This
work was supported by the U. S. Department of Energy under Contract No.
DE-AC02-09CH11466.
NR 6
TC 2
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U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E404
DI 10.1063/1.4884612
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000152
PM 25430311
ER
PT J
AU Biewer, TM
Hillis, DL
AF Biewer, T. M.
Hillis, D. L.
TI Preface: Proceedings of the 20th Topical Conference on High-Temperature
Plasma Diagnostics, Atlanta, Georgia, USA, 1-5 June 2014
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Editorial Material
C1 [Biewer, T. M.; Hillis, D. L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Biewer, TM (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
NR 0
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PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D101
DI 10.1063/1.4890410
PG 1
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000001
PM 25430160
ER
PT J
AU Biewer, TM
Shaw, G
AF Biewer, T. M.
Shaw, G.
TI Initial implementation of a Thomson scattering diagnostic for Proto-MPEX
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID SPECTROMETER; SYSTEM
AB Internal funds have been used at Oak Ridge National Laboratory to enable the initial installation of a laser based, Thomson scattering (TS) diagnostic on the prototype Material-Plasma Exposure eXperiment (Proto-MPEX). Since the funds are limited in amount and duration, the initial TS system has followed a low cost design and rapid implementation. This paper will discuss the design elements of the initial TS configuration on Proto-MPEX and issues encountered during installation. Avenues of response to system limitations will be discussed, along with considerations for further optimization. The laser system will undergo reconfiguration to enable additional project milestones, e.g., laser induced break-down spectroscopy. (C) 2014 AIP Publishing LLC.
C1 [Biewer, T. M.; Shaw, G.] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA.
[Shaw, G.] Univ Tennessee, Bredesen Ctr, Knoxville, TN 37996 USA.
RP Biewer, TM (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA.
EM biewertm@ornl.gov
OI Biewer, Theodore/0000-0001-7456-3509
FU U.S. D.O.E [DE-AC05-00OR22725]; Laboratory Directed Research and
Development Program of Oak Ridge National Laboratory, U.S. Department of
Energy
FX This work was supported by the U.S. D.O.E Contract No.
DE-AC05-00OR22725. Research sponsored by the Laboratory Directed
Research and Development Program of Oak Ridge National Laboratory,
managed by UT-Battelle, LLC, for the U.S. Department of Energy.
NR 11
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U1 2
U2 13
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D812
DI 10.1063/1.4886959
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000066
PM 25430225
ER
PT J
AU Bitter, M
Hill, KW
Efthimion, PC
Delgado-Aparicio, L
Pablant, N
Lu, J
Beiersdorfer, P
Chen, H
AF Bitter, M.
Hill, K. W.
Efthimion, P. C.
Delgado-Aparicio, L.
Pablant, N.
Lu, Jian
Beiersdorfer, P.
Chen, Hui
TI A new spectrometer design for the x-ray spectroscopy of laser-produced
plasmas with high (sub-ns) time resolution
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB This paper describes a new type of x-ray crystal spectrometer, which can be used in combination with gated x-ray detectors to obtain spectra from laser-produced plasmas with a high (sub-ns) time resolution. The spectrometer consists of a convex, spherically bent crystal, which images individual spectral lines as perfectly straight lines across multiple, sequentially gated, strip detectors. Since the Bragg-reflected rays are divergent, the distance between detector and crystal is arbitrary, so that this distance can be appropriately chosen to optimize the experimental arrangement with respect to the detector parameters. The spectrometer concept was verified in proof-of-principle experiments by imaging the L beta(1)-and L beta(2)-lines of tungsten, at 9.6735 and 9.96150 keV, from a micro-focus x-ray tube with a tungsten target onto a two-dimensional pixilated Pilatus detector, using a convex, spherically bent Si-422 crystal with a radius of curvature of 500 mm. (C) 2014 AIP Publishing LLC.
C1 [Bitter, M.; Hill, K. W.; Efthimion, P. C.; Delgado-Aparicio, L.; Pablant, N.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Lu, Jian] Chongqing Univ, Dept Engn, Chongqing 400044, Peoples R China.
[Beiersdorfer, P.; Chen, Hui] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA.
RP Bitter, M (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM bitter@pppl.gov
FU U.S. Department of Energy [DE-AC02-09CH-11466, DE-AC52-07NA-27344]
FX This work was supported by the U.S. Department of Energy through
Contract Nos. DE-AC02-09CH-11466 and DE-AC52-07NA-27344.
NR 15
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U1 0
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D627
DI 10.1063/1.4894390
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000044
PM 25430203
ER
PT J
AU Bonura, MA
Ruiz, CL
Fehl, DL
Cooper, GW
Chandler, G
Hahn, KD
Nelson, AJ
Styron, JD
Torres, JA
AF Bonura, M. A.
Ruiz, C. L.
Fehl, D. L.
Cooper, G. W.
Chandler, G.
Hahn, K. D.
Nelson, A. J.
Styron, J. D.
Torres, J. A.
TI A technique for verifying the input response function of neutron
time-of-flight scintillation detectors using cosmic rays
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB An accurate interpretation of DD or DT fusion neutron time-of-flight (nTOF) signals from current mode detectors employed at the Z-facility at Sandia National Laboratories requires that the instrument response functions (IRF's) be deconvolved from the measured nTOF signals. A calibration facility that produces detectable sub-ns radiation pulses is typically used to measure the IRF of such detectors. This work, however, reports on a simple method that utilizes cosmic radiation to measure the IRF of nTOF detectors, operated in pulse-counting mode. The characterizing metrics reported here are the throughput delay and full-width-at-half-maximum. This simple approach yields consistent IRF results with the same detectors calibrated in 2007 at a LINAC bremsstrahlung accelerator (Idaho State University). In particular, the IRF metrics from these two approaches and their dependence on the photomultipliers bias agree to within a few per cent. This information may thus be used to verify if the IRF for a given nTOF detector employed at Z has changed since its original current-mode calibration and warrants re-measurement. (C) 2014 AIP Publishing LLC.
C1 [Bonura, M. A.; Cooper, G. W.; Nelson, A. J.; Styron, J. D.] Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA.
[Ruiz, C. L.; Fehl, D. L.; Chandler, G.; Hahn, K. D.; Torres, J. A.] Sandia Natl Labs, Albuquerque, NM 87111 USA.
RP Ruiz, CL (reprint author), Sandia Natl Labs, Albuquerque, NM 87111 USA.
EM clruiz@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 operated by
Sandia Corporation, a wholly owned subsidiary of Lockheed Martin
company, for the U.S. Department of Energy's National Nuclear Security
Administration under Contract No. DE-AC04-94AL85000.
NR 5
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U1 0
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D633
DI 10.1063/1.4896958
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000050
PM 25430209
ER
PT J
AU Chen, H
Bitter, M
Hill, KW
Kerr, S
Magee, E
Nagel, SR
Park, J
Schneider, MB
Stone, G
Williams, GJ
Beiersdorfer, P
AF Chen, Hui
Bitter, M.
Hill, K. W.
Kerr, S.
Magee, E.
Nagel, S. R.
Park, J.
Schneider, M. B.
Stone, G.
Williams, G. J.
Beiersdorfer, P.
TI A high-resolution imaging x-ray crystal spectrometer for high energy
density plasmas
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Adapting a concept developed for magnetic confinement fusion experiments, an imaging crystal spectrometer has been designed and tested for HED plasmas. The instrument uses a spherically bent quartz [211] crystal with radius of curvature of 490.8 mm. The instrument was tested at the Titan laser at Lawrence Livermore National Laboratory by irradiating titanium slabs with laser intensities of 10(19)-10(20) W/cm(2). He-like and Li-like Ti lines were recorded, from which the spectrometer performance was evaluated. This spectrometer provides very high spectral resolving power (E/dE > 7000) while acquiring a one-dimensional image of the source. (C) 2014 AIP Publishing LLC.
C1 [Chen, Hui; Magee, E.; Nagel, S. R.; Park, J.; Schneider, M. B.; Stone, G.; Williams, G. J.; Beiersdorfer, P.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Bitter, M.; Hill, K. W.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Kerr, S.] Univ Alberta, Dept Appl Sci, Edmonton, AB T6G 2R3, Canada.
RP Chen, H (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM chen33@llnl.gov; bitter@pppl.gov
OI Kerr, Shaun/0000-0003-4822-564X
FU U.S. DOE by LLNL [DE-AC52-07NA27344]; PPPL under DOE [DE-AC02-09CH11466]
FX This work was performed under the auspices of the U.S. DOE by LLNL under
Contract No. DE-AC52-07NA27344 and was supported at PPPL under DOE
Contract No. DE-AC02-09CH11466.
NR 16
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E606
DI 10.1063/1.4891053
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000193
PM 25430352
ER
PT J
AU Chen, X
Heidbrink, WW
Van Zeeland, MA
Kramer, GJ
Pace, DC
Petty, CC
Austin, ME
Fisher, RK
Hanson, JM
Nazikian, R
Zeng, L
AF Chen, Xi
Heidbrink, W. W.
Van Zeeland, M. A.
Kramer, G. J.
Pace, D. C.
Petty, C. C.
Austin, M. E.
Fisher, R. K.
Hanson, J. M.
Nazikian, R.
Zeng, L.
TI Using neutral beams as a light ion beam probe (invited)
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID SCINTILLATOR PROBE
AB By arranging the particle first banana orbits to pass near a distant detector, the light ion beam probe (LIBP) utilizes orbital deflection to probe internal fields and field fluctuations. The LIBP technique takes advantage of (1) the in situ, known source of fast ions created by beam-injected neutral particles that naturally ionize near the plasma edge and (2) various commonly available diagnostics as its detector. These born trapped particles can traverse the plasma core on their inner banana leg before returning to the plasma edge. Orbital displacements (the forces on fast ions) caused by internal instabilities or edge perturbing fields appear as modulated signal at an edge detector. Adjustments in the q-profile and plasma shape that determine the first orbit, as well as the relative position of the source and detector, enable studies under a wide variety of plasma conditions. This diagnostic technique can be used to probe the impact on fast ions of various instabilities, e.g., Alfven eigenmodes (AEs) and neoclassical tearing modes, and of externally imposed 3D fields, e.g., magnetic perturbations. To date, displacements by AEs and by externally applied resonant magnetic perturbation fields have been measured using a fast ion loss detector. Comparisons with simulations are shown. In addition, nonlinear interactions between fast ions and independent AE waves are revealed by this technique. (C) 2014 AIP Publishing LLC.
C1 [Chen, Xi] Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37831 USA.
[Heidbrink, W. W.] Univ Calif Irvine, Irvine, CA 92697 USA.
[Van Zeeland, M. A.; Pace, D. C.; Petty, C. C.; Fisher, R. K.] Gen Atom Co, San Diego, CA 92186 USA.
[Kramer, G. J.; Nazikian, R.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Austin, M. E.] Univ Texas Austin, Austin, TX 78712 USA.
[Hanson, J. M.] Columbia Univ, New York, NY 10027 USA.
[Zeng, L.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
RP Chen, X (reprint author), Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37831 USA.
EM chenxi@fusion.gat.com
FU US Department of Energy (DOE) [DE-AC05-06ER23100, SC-G903402,
DE-FC02-04ER54698, DE-AC02-09CH11466m DE-FG03-97ER54415,
DE-FG02-04ER54761, DE-FG02-08ER54984]
FX This work was supported by the US Department of Energy (DOE) under
DE-AC05-06ER23100, SC-G903402, DE-FC02-04ER54698, DE-AC02-09CH11466m
DE-FG03-97ER54415, DE-FG02-04ER54761, and DE-FG02-08ER54984. The authors
are grateful to the DIII-D team for their support and particularly thank
N.G. Bolte, C. J. Lasnier, B. A. Grierson, and R. Cardenas. DIII-D data
shown in this paper can be obtained in digital format by following the
links at https://fusion.gat.com/global/D3D_DMP.
NR 26
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U1 1
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E701
DI 10.1063/1.4889733
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000205
PM 25430364
ER
PT J
AU Chrystal, C
Burrell, KH
Grierson, BA
Lao, LL
Pace, DC
AF Chrystal, C.
Burrell, K. H.
Grierson, B. A.
Lao, L. L.
Pace, D. C.
TI A method for determining poloidal rotation from poloidal asymmetry in
toroidal rotation (invited)
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID RADIAL ELECTRIC-FIELD; TOKAMAK PLASMA; DIII-D; TRANSPORT; SPECTROSCOPY;
TURBULENCE; VELOCITY
AB A new diagnostic has been developed on DIII-D that determines the impurity poloidal rotation from the poloidal asymmetry in the toroidal angular rotation velocity. This asymmetry is measured with recently added tangential charge exchange viewchords on the high-field side of the tokamak midplane. Measurements are made on co- and counter-current neutral beams, allowing the charge exchange cross section effect to be measured and eliminating the need for atomic physics calculations. The diagnostic implementation on DIII-D restricts the measurement range to the core (r/a < 0.6) where, relative to measurements made with the vertical charge exchange system, the spatial resolution is improved. Significant physics results have been obtained with this new diagnostic; for example, poloidal rotation measurements that significantly exceed neoclassical predictions. (C) 2014 AIP Publishing LLC.
C1 [Chrystal, C.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA.
[Burrell, K. H.; Lao, L. L.; Pace, D. C.] Gen Atom Co, San Diego, CA 92186 USA.
[Grierson, B. A.] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Chrystal, C (reprint author), Univ Calif San Diego, Dept Phys, 9500 Gilman Dr, La Jolla, CA 92093 USA.
EM chrystal@fusion.gat.com
FU US Department of Energy [DE-FG02-07ER54917, DE-FC02-04ER54698,
DE-AC02-09H11466]
FX This work was supported by the US Department of Energy under
DE-FG02-07ER54917, DE-FC02-04ER54698, and DE-AC02-09H11466. DIII-D data
shown in this paper can be obtained in digital format by following the
links at https://fusion.gat.com/global/D3D_DMP.
NR 29
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U1 0
U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E302
DI 10.1063/1.4891601
PG 7
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000148
PM 25430307
ER
PT J
AU Classen, IGJ
Domier, CW
Luhmann, NC
Bogomolov, AV
Suttrop, W
Boom, JE
Tobias, BJ
Donne, AJH
AF Classen, I. G. J.
Domier, C. W.
Luhmann, N. C., Jr.
Bogomolov, A. V.
Suttrop, W.
Boom, J. E.
Tobias, B. J.
Donne, A. J. H.
CA ASDEX Upgrade Team
TI Dual array 3D electron cyclotron emission imaging at ASDEX Upgrade
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB In a major upgrade, the (2D) electron cyclotron emission imaging diagnostic (ECEI) at ASDEX Upgrade has been equipped with a second detector array, observing a different toroidal position in the plasma, to enable quasi-3D measurements of the electron temperature. The new system will measure a total of 288 channels, in two 2D arrays, toroidally separated by 40 cm. The two detector arrays observe the plasma through the same vacuum window, both under a slight toroidal angle. The majority of the field lines are observed by both arrays simultaneously, thereby enabling a direct measurement of the 3D properties of plasma instabilities like edge localized mode filaments. (C) 2014 AIP Publishing LLC.
C1 [Classen, I. G. J.; Bogomolov, A. V.; Donne, A. J. H.] Dutch Inst Fundamental Energy Res, FOM Inst DIFFER, NL-3430 BE Nieuwegein, Netherlands.
[Domier, C. W.; Luhmann, N. C., Jr.] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA.
[Suttrop, W.; Boom, J. E.; ASDEX Upgrade Team] Max Planck Inst Plasma Phys, D-85748 Garching, Germany.
[Tobias, B. J.] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA.
[Donne, A. J. H.] Eindhoven Univ Technol, Dept Appl Phys, NL-5600 MB Eindhoven, Netherlands.
RP Classen, IGJ (reprint author), Dutch Inst Fundamental Energy Res, FOM Inst DIFFER, NL-3430 BE Nieuwegein, Netherlands.
EM I.G.J.Classen@differ.nl
FU European Union [633053]; U.S. DOE [DE-AC02-09CH11466]
FX This project has received funding from the European Union's Horizon 2020
research and innovation programme under grant agreement number 633053.
The views and opinions expressed herein do not necessarily reflect those
of the European Commission. UC Davis work is supported by U.S. DOE Grant
No. DE-AC02-09CH11466.
NR 17
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D833
DI 10.1063/1.4891061
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000087
PM 25430246
ER
PT J
AU Danly, CR
Sjue, S
Wilde, CH
Merrill, FE
Haight, RC
AF Danly, C. R.
Sjue, S.
Wilde, C. H.
Merrill, F. E.
Haight, R. C.
TI Plastic fiber scintillator response to fast neutrons
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB The Neutron Imaging System at NIF uses an array of plastic scintillator fibers in conjunction with a time-gated imaging system to form an image of the neutron emission from the imploded capsule. By gating on neutrons that have scattered from the 14.1 MeV DT energy to lower energy ranges, an image of the dense, cold fuel around the hotspot is also obtained. An unmoderated spallation neutron beamline at the Weapons Neutron Research facility at Los Alamos was used in conjunction with a time-gated imaging system to measure the yield of a scintillating fiber array over several energy bands ranging from 1 to 15 MeV. The results and comparison to simulation are presented. (C) 2014 AIP Publishing LLC.
C1 [Danly, C. R.; Sjue, S.; Wilde, C. H.; Merrill, F. E.; Haight, R. C.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
RP Danly, CR (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA.
OI Merrill, Frank/0000-0003-0603-735X
NR 5
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U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E607
DI 10.1063/1.4891160
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000194
PM 25430353
ER
PT J
AU Delgado-Aparicio, L
Bell, RE
Faust, I
Tritz, K
Diallo, A
Gerhardt, SP
Kozub, TA
LeBlanc, BP
Stratton, BC
AF Delgado-Aparicio, L.
Bell, R. E.
Faust, I.
Tritz, K.
Diallo, A.
Gerhardt, S. P.
Kozub, T. A.
LeBlanc, B. P.
Stratton, B. C.
TI High-resolution tangential absolute extreme ultraviolet arrays for
radiated power density measurements on NSTX-U
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID PLASMAS
AB The radiated-power-density diagnostic on the equatorial midplane for the NSTX-U tokamak will be upgraded to measure the radial structure of the photon emissivity profile with an improved radial resolution. This diagnostic will enhance the characterization and studies of power balance, impurity transport, and MHD. The layout and response expected of the new system is shown for different plasma conditions and impurity concentrations. The effect of toroidal rotation driving poloidal asymmetries in the core radiation from high-Z impurities is also addressed. (C) 2014 AIP Publishing LLC.
C1 [Delgado-Aparicio, L.; Bell, R. E.; Diallo, A.; Gerhardt, S. P.; Kozub, T. A.; LeBlanc, B. P.; Stratton, B. C.] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA.
[Faust, I.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
[Tritz, K.] Johns Hopkins Univ, Baltimore, MD 21209 USA.
RP Delgado-Aparicio, L (reprint author), Princeton Plasma Phys Lab, Princeton, NJ 08540 USA.
FU US DOE at MIT [DE-FC02-99ER54512]; US DOE at PPPL [DE-AC02-09CH11466]
FX This novel approach will be tested first using the NSTX database and
will implemented later for NSTX-U radiated power density measurements.
This work was performed under US DOE Contract Nos. DE-FC02-99ER54512 at
MIT and DE-AC02-09CH11466 at PPPL.
NR 11
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PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D859
DI 10.1063/1.4894835
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000113
PM 25430272
ER
PT J
AU Deng, ZD
Lu, J
Myjak, MJ
Martinez, JJ
Tian, C
Morris, SJ
Carlson, TJ
Zhou, D
Hou, H
AF Deng, Z. D.
Lu, J.
Myjak, M. J.
Martinez, J. J.
Tian, C.
Morris, S. J.
Carlson, T. J.
Zhou, D.
Hou, H.
TI Design and implementation of a new autonomous sensor fish to support
advanced hydropower development
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID PASSAGE SURVIVAL; JUVENILE SALMON; BAROTRAUMA; TURBINES; FLOW
AB Acceleration in development of additional conventional hydropower requires tools and methods to perform laboratory and in-field validation of turbine performance and fish passage claims. The new-generation Sensor Fish has been developed with more capabilities to accommodate a wider range of users over a broader range of turbine designs and operating environments. It provides in situ measurements of three-dimensional (3D) linear accelerations, 3D rotational velocities, 3D orientation, pressure, and temperature at a sampling frequency of 2048 Hz. It also has an automatic floatation system and built-in radio-frequency transmitter for recovery. The relative errors of the pressure, acceleration, and rotational velocity were within +/- 2%, +/- 5%, and +/- 5%, respectively. The accuracy of orientation was within +/- 4 degrees and accuracy of temperature was +/- 2 degrees C. The new-generation Sensor Fish is becoming a major technology and being deployed for evaluating the conditions for fish passage of turbines or other hydraulic structures in both the United States and several other countries. (c) 2014 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.
C1 [Deng, Z. D.; Lu, J.; Myjak, M. J.; Martinez, J. J.; Tian, C.; Morris, S. J.; Carlson, T. J.; Zhou, D.; Hou, H.] Pacific NW Natl Lab, Richland, WA 99332 USA.
RP Deng, ZD (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99332 USA.
RI Deng, Daniel/A-9536-2011;
OI Deng, Daniel/0000-0002-8300-8766; Myjak, Mitchell/0000-0002-3807-3542
FU U.S. Department of Energy Wind and Water Power Technologies Office;
Electric Power Research Institute
FX The study was funded by the U.S. Department of Energy Wind and Water
Power Technologies Office and The Electric Power Research Institute. The
authors also would like to thank the U.S. Army Corps of Engineers for
their support of the field deployment. The study was conducted at
Pacific Northwest National Laboratory, operated by Battelle for the U.S.
Department of Energy.
NR 16
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 115001
DI 10.1063/1.4900543
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000287
PM 25430138
ER
PT J
AU Doppner, T
Kritcher, AL
Neumayer, P
Kraus, D
Bachmann, B
Burns, S
Falcone, RW
Glenzer, SH
Hawreliak, J
House, A
Landen, OL
LePape, S
Ma, T
Pak, A
Swift, D
AF Doeppner, T.
Kritcher, A. L.
Neumayer, P.
Kraus, D.
Bachmann, B.
Burns, S.
Falcone, R. W.
Glenzer, S. H.
Hawreliak, J.
House, A.
Landen, O. L.
LePape, S.
Ma, T.
Pak, A.
Swift, D.
TI Qualification of a high-efficiency, gated spectrometer for x-ray Thomson
scattering on the National Ignition Facility
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID CRYSTALS
AB We have designed, built, and successfully fielded a highly efficient and gated Bragg crystal spectrometer for x-ray Thomson scattering measurements on the National Ignition Facility (NIF). It utilizes a cylindrically curved Highly Oriented Pyrolytic Graphite crystal. Its spectral range of 7.4-10 keV is optimized for scattering experiments using a Zn He-alpha x-ray probe at 9.0 keV or Mo K-shell line emission around 18 keV in second diffraction order. The spectrometer has been designed as a diagnostic instrument manipulator-based instrument for the NIF target chamber at the Lawrence Livermore National Laboratory, USA. Here, we report on details of the spectrometer snout, its novel debris shield configuration and an in situ spectral calibration experiment with a Brass foil target, which demonstrated a spectral resolution of E/Delta E = 220 at 9.8 keV. (C) 2014 AIP Publishing LLC.
C1 [Doeppner, T.; Kritcher, A. L.; Bachmann, B.; Burns, S.; Hawreliak, J.; House, A.; Landen, O. L.; LePape, S.; Ma, T.; Pak, A.; Swift, D.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Neumayer, P.] Gesell Schwerionenphys, D-64291 Darmstadt, Germany.
[Kraus, D.; Falcone, R. W.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Falcone, R. W.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Glenzer, S. H.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94309 USA.
RP Doppner, T (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RI lepape, sebastien/J-3010-2015
FU (U.S.) Department of Energy (DOE) by the Lawrence Livermore National
Laboratory [DE-AC52-07NA27344]; Laboratory Directed Research and
Development Grant [13-ERD-073]
FX We acknowledge support from Dan Kalantar, Tom McCarvillle, and Reg Wood
who worked out critically important alignment procedures. We also thank
Ulf Zastrau and Vladimir Arkadiev for helpful discussions on graphite
coatings, and Sean Felker for technical support building the Brass foil
target. This work was performed under the auspices of the (U.S.)
Department of Energy (DOE) by the Lawrence Livermore National Laboratory
under Contract No. DE-AC52-07NA27344. The authors acknowledge support
from Laboratory Directed Research and Development Grant No. 13-ERD-073.
NR 15
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PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D617
DI 10.1063/1.4890253
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000034
PM 25430193
ER
PT J
AU Fan, D
Lu, L
Li, B
Qi, ML
E, JC
Zhao, F
Sun, T
Fezzaa, K
Chen, W
Luo, SN
AF Fan, D.
Lu, L.
Li, B.
Qi, M. L.
E, J. C.
Zhao, F.
Sun, T.
Fezzaa, K.
Chen, W.
Luo, S. N.
TI Transient x-ray diffraction with simultaneous imaging under high
strain-rate loading
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID HOPKINSON PRESSURE BAR; AZ31 MAGNESIUM ALLOY; DEFORMATION; FRACTURE;
COMPRESSION
AB Real time, in situ, multiframe, diffraction, and imaging measurements on bulk samples under high and ultrahigh strain-rate loading are highly desirable for micro-and mesoscale sciences. We present an experimental demonstration of multiframe transient x-ray diffraction (TXD) along with simultaneous imaging under high strain-rate loading at the Advanced Photon Source beamline 32ID. The feasibility study utilizes high strain-rate Hopkinson bar loading on a Mg alloy. The exposure time in TXD is 2-3 mu s, and the frame interval is 26.7-62.5 mu s. Various dynamic deformation mechanisms are revealed by TXD, including lattice expansion or compression, crystal plasticity, grain or lattice rotation, and likely grain refinement, as well as considerable anisotropy in deformation. Dynamic strain fields are mapped via x-ray digital image correlation, and are consistent with the diffraction measurements and loading histories. (C) 2014 AIP Publishing LLC.
C1 [Fan, D.; Lu, L.; Li, B.; E, J. C.; Zhao, F.; Luo, S. N.] Peac Inst Multiscale Sci, Chengdu 610207, Sichuan, Peoples R China.
[Lu, L.; Li, B.] Univ Sci & Technol China, Dept Modern Mech, Hefei 230027, Anhui, Peoples R China.
[Qi, M. L.] Wuhan Univ Technol, Sch Sci, Wuhan 430070, Hubei, Peoples R China.
[Sun, T.; Fezzaa, K.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Chen, W.] Purdue Univ, Sch Aeronaut & Astronaut, W Lafayette, IN 47907 USA.
[Chen, W.] Purdue Univ, Sch Mat Sci Engn, W Lafayette, IN 47907 USA.
RP Fan, D (reprint author), Peac Inst Multiscale Sci, Chengdu 610207, Sichuan, Peoples R China.
EM sluo@pims.ac.cn
RI Luo, Sheng-Nian /D-2257-2010; E, Juncheng/O-1588-2015;
OI Luo, Sheng-Nian /0000-0002-7538-0541; E, Juncheng/0000-0001-6061-5734;
Li, Bo/0000-0002-0389-7357
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]; National Natural Science Foundation of
China; NSAF [11472253, 11172221, U1330111]
FX We would like to thank M. Hudspeth, N. Parab, Z. Guo, A. Deriy, and J.
Wang for their various help. Use of the Advanced Photon Source and the
Center for Nanoscale Materials were supported by the U.S. Department of
Energy, Office of Science, Office of Basic Energy Sciences, under
Contract No. DE-AC02-06CH11357. This work was supported in part by the
National Natural Science Foundation of China and NSAF (Nos. 11472253,
11172221, and U1330111).
NR 22
TC 11
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U1 7
U2 23
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 113902
DI 10.1063/1.4900861
PG 5
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000268
PM 25430119
ER
PT J
AU Faust, I
Delgado-Aparicio, L
Bell, RE
Tritz, K
Diallo, A
Gerhardt, SP
LeBlanc, B
Kozub, TA
Parker, RR
Stratton, BC
AF Faust, I.
Delgado-Aparicio, L.
Bell, R. E.
Tritz, K.
Diallo, A.
Gerhardt, S. P.
LeBlanc, B.
Kozub, T. A.
Parker, R. R.
Stratton, B. C.
TI Two-dimensional AXUV-based radiated power density diagnostics on NSTX-U
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID X-RAY TOMOGRAPHY; ALCATOR C-MOD; TOKAMAKS
AB A new set of radiated-power-density diagnostics for the National Spherical Torus Experiment Upgrade (NSTX-U) tokamak have been designed to measure the two-dimensional poloidal structure of the total photon emissivity profile in order to perform power balance, impurity transport, and magnetohydrodynamic studies. Multiple AXUV-diode based pinhole cameras will be installed in the same toroidal angle at various poloidal locations. The local emissivity will be obtained from several types of tomographic reconstructions. The layout and response expected for the new radially viewing poloidal arrays will be shown for different impurity concentrations to characterize the diagnostic sensitivity. The radiated power profile inverted from the array data will also be used for estimates of power losses during transitions from various divertor configurations in NSTX-U. The effect of in-out and top/bottom asymmetries in the core radiation from high-Z impurities will be addressed. (C) 2014 AIP Publishing LLC.
C1 [Faust, I.; Parker, R. R.; Stratton, B. C.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
[Delgado-Aparicio, L.; Bell, R. E.; Diallo, A.; Gerhardt, S. P.; LeBlanc, B.; Kozub, T. A.; Stratton, B. C.] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA.
[Tritz, K.] Johns Hopkins Univ, Baltimore, MD 21209 USA.
RP Faust, I (reprint author), MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
FU (U.S.) Department of Energy (DOE) at MIT [DE-FC02-99ER54512]; (U.S.)
Department of Energy (DOE) at PPPL [DE-AC02-09CH11466]
FX This work was performed under (U.S.) Department of Energy (DOE) Contract
Nos. DE-FC02-99ER54512 at MIT and DE-AC02-09CH11466 at PPPL.
NR 9
TC 1
Z9 1
U1 3
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D856
DI 10.1063/1.4890254
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000110
PM 25430269
ER
PT J
AU Field, JE
Rygg, JR
Barrios, MA
Benedetti, LR
Doppner, T
Izumi, N
Jones, O
Khan, SF
Ma, T
Nagel, SR
Pak, A
Tommasini, R
Bradley, DK
Town, RPJ
AF Field, J. E.
Rygg, J. R.
Barrios, M. A.
Benedetti, L. R.
Doeppner, T.
Izumi, N.
Jones, O.
Khan, S. F.
Ma, T.
Nagel, S. R.
Pak, A.
Tommasini, R.
Bradley, D. K.
Town, R. P. J.
TI Reconstruction of 2D x-ray radiographs at the National Ignition Facility
using pinhole tomography
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Two-dimensional radiographs of imploding fusion capsules are obtained at the National Ignition Facility by projection through a pinhole array onto a time-gated framing camera. Parallax among images in the image array makes it possible to distinguish contributions from the capsule and from the backlighter, permitting correction of backlighter non-uniformities within the capsule radiograph. Furthermore, precise determination of the imaging system geometry and implosion velocity enables combination of multiple images to reduce signal-to-noise and discover new capsule features. (C) 2014 AIP Publishing LLC.
C1 [Field, J. E.; Rygg, J. R.; Barrios, M. A.; Benedetti, L. R.; Doeppner, T.; Izumi, N.; Jones, O.; Khan, S. F.; Ma, T.; Nagel, S. R.; Pak, A.; Tommasini, R.; Bradley, D. K.; Town, R. P. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Field, JE (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM field9@llnl.gov
RI IZUMI, Nobuhiko/J-8487-2016; Tommasini, Riccardo/A-8214-2009
OI IZUMI, Nobuhiko/0000-0003-1114-597X; Tommasini,
Riccardo/0000-0002-1070-3565
FU (U.S.) Department of Energy (DOE) by Lawrence Livermore National
Laboratory [DE-AC52-07NA27344]
FX The authors thank the engineering, target fabrication, and operations
teams at the National Ignition Facility who made these experiments
possible. This work was performed under the auspices of the (U.S.)
Department of Energy (DOE) by Lawrence Livermore National Laboratory
under Contract No. DE-AC52-07NA27344.
NR 9
TC 6
Z9 6
U1 0
U2 14
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E503
DI 10.1063/1.4890395
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000186
PM 25430345
ER
PT J
AU Fimognari, PJ
Demers, DR
Chen, X
Schoch, PM
AF Fimognari, P. J.
Demers, D. R.
Chen, X.
Schoch, P. M.
TI Resolving small signal measurements in experimental plasma environments
using calibrated subtraction of noise signals
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID REDUCTION; MST
AB The performance of many diagnostic and control systems within fusion and other fields of research are often detrimentally affected by spurious noise signals. This is particularly true for those (such as radiation or particle detectors) working with very small signals. Common sources of radiated and conducted noise in experimental fusion environments include the plasma itself and instrumentation. The noise complicates data analysis, as illustrated by noise on signals measured with the heavy ion beam probe (HIBP) installed on the Madison Symmetric Torus. The noise is time-varying and often exceeds the secondary ion beam current (in contrast with previous applications). Analysis of the noise identifies the dominant source as photoelectric emission from the detectors induced by ultraviolet light from the plasma. This has led to the development of a calibrated subtraction technique, which largely removes the undesired temporal noise signals from data. The advantages of the technique for small signal measurement applications are demonstrated through improvements realized on HIBP fluctuation measurements. (C) 2014 AIP Publishing LLC.
C1 [Fimognari, P. J.; Demers, D. R.] Xantho Technol LLC, Madison, WI 53705 USA.
[Chen, X.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37830 USA.
[Schoch, P. M.] Rensselaer Polytech Inst, Troy, NY 12180 USA.
RP Fimognari, PJ (reprint author), Xantho Technol LLC, Madison, WI 53705 USA.
EM PJFimognari@XanthoTechnologies.com
FU U.S. DOE [DE-SC0006077]
FX This work is supported by U.S. DOE Award No. DE-SC0006077.
NR 16
TC 3
Z9 3
U1 1
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D849
DI 10.1063/1.4891976
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000103
PM 25430262
ER
PT J
AU Fletcher, LB
Lee, HJ
Barbrel, B
Gauthier, M
Galtier, E
Nagler, B
Doppner, T
LePape, S
Ma, T
Pak, A
Turnbull, D
White, T
Gregori, G
Wei, M
Falcone, RW
Heimann, P
Zastrau, U
Hastings, JB
Glenzer, SH
AF Fletcher, L. B.
Lee, H. J.
Barbrel, B.
Gauthier, M.
Galtier, E.
Nagler, B.
Doeppner, T.
LePape, S.
Ma, T.
Pak, A.
Turnbull, D.
White, T.
Gregori, G.
Wei, M.
Falcone, R. W.
Heimann, P.
Zastrau, U.
Hastings, J. B.
Glenzer, S. H.
TI Exploring Mbar shock conditions and isochorically heated aluminum at the
Matter in Extreme Conditions end station of the Linac Coherent Light
Source (invited)
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID RAY THOMSON SCATTERING; FREE-ELECTRON LASER; PHASE-TRANSITION; PLASMAS
AB Recent experiments performed at the Matter in Extreme Conditions end station of the Linac Coherent Light Source (LCLS) have demonstrated the first spectrally resolved measurements of plasmons from isochorically heated aluminum. The experiments have been performed using a seeded 8-keV x-ray laser beam as a pump and probe to both volumetrically heat and scatter x-rays from aluminum. Collective x-ray Thomson scattering spectra show a well-resolved plasmon feature that is down-shifted in energy by 19 eV. In addition, Mbar shock pressures from laser-compressed aluminum foils using velocity interferometer system for any reflector have been measured. The combination of experiments fully demonstrates the possibility to perform warm dense matter studies at the LCLS with unprecedented accuracy and precision. (C) 2014 AIP Publishing LLC.
C1 [Fletcher, L. B.; Lee, H. J.; Gauthier, M.; Galtier, E.; Nagler, B.; Heimann, P.; Zastrau, U.; Hastings, J. B.; Glenzer, S. H.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
[Fletcher, L. B.; Barbrel, B.; Falcone, R. W.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94709 USA.
[Doeppner, T.; LePape, S.; Ma, T.; Pak, A.; Turnbull, D.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[White, T.; Gregori, G.] Univ Oxford, Dept Phys, Oxford OX1 3PU, England.
[Wei, M.] Gen Atom, San Diego, CA USA.
[Zastrau, U.] Univ Jena, Inst Opt & Quantum Elect, D-07743 Jena, Germany.
RP Fletcher, LB (reprint author), SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
RI gauthier, Maxence/K-2578-2014; lepape, sebastien/J-3010-2015
OI gauthier, Maxence/0000-0001-6608-9325;
FU DOE Office of Science, Fusion Energy Science [SF00515]; DOE Office of
Basic Energy Sciences, Materials Sciences and Engineering Division
[DE-AC02-76SF00515]; VolkswagenStiftung
FX This work was performed at the Matter at Extreme Conditions (MEC)
instrument of LCLS, supported by the DOE Office of Science, Fusion
Energy Science under Contract No. SF00515. This work was partially
supported by DOE Office of Basic Energy Sciences, Materials Sciences and
Engineering Division, under Contract No. DE-AC02-76SF00515. U.Z. is
grateful to the VolkswagenStiftung for his Peter-Paul-Ewald Fellowship.
NR 31
TC 1
Z9 1
U1 0
U2 16
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR UNSP 11E702
DI 10.1063/1.4891186
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000206
PM 25430365
ER
PT J
AU Gauthier, M
Fletcher, LB
Ravasio, A
Galtier, E
Gamboa, EJ
Granados, E
Hastings, JB
Heimann, P
Lee, HJ
Nagler, B
Schropp, A
Gleason, A
Doppner, T
LePape, S
Ma, T
Pak, A
MacDonald, MJ
Ali, S
Barbrel, B
Falcone, R
Kraus, D
Chen, Z
Mo, M
Wei, M
Glenzer, SH
AF Gauthier, M.
Fletcher, L. B.
Ravasio, A.
Galtier, E.
Gamboa, E. J.
Granados, E.
Hastings, J. B.
Heimann, P.
Lee, H. J.
Nagler, B.
Schropp, A.
Gleason, A.
Doeppner, T.
LePape, S.
Ma, T.
Pak, A.
MacDonald, M. J.
Ali, S.
Barbrel, B.
Falcone, R.
Kraus, D.
Chen, Z.
Mo, M.
Wei, M.
Glenzer, S. H.
TI New experimental platform to study high density laser-compressed matter
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID THOMSON SCATTERING; PLASMAS
AB We have developed a new experimental platform at the Linac Coherent Light Source (LCLS) which combines simultaneous angularly and spectrally resolved x-ray scattering measurements. This technique offers a new insights on the structural and thermodynamic properties of warm dense matter. The < 50 fs temporal duration of the x-ray pulse provides near instantaneous snapshots of the dynamics of the compression. We present a proof of principle experiment for this platform to characterize a shock-compressed plastic foil. We observe the disappearance of the plastic semi-crystal structure and the formation of a compressed liquid ion-ion correlation peak. The plasma parameters of shock-compressed plastic can be measured as well, but requires an averaging over a few tens of shots. (C) 2014 AIP Publishing LLC.
C1 [Gauthier, M.; Fletcher, L. B.; Ravasio, A.; Galtier, E.; Gamboa, E. J.; Granados, E.; Hastings, J. B.; Heimann, P.; Lee, H. J.; Nagler, B.; Schropp, A.; Falcone, R.; Glenzer, S. H.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
[Ravasio, A.] Ecole Polytech, LULI, Palaiseau, France.
[Gleason, A.] Stanford Univ, Dept Geol & Environm Sci, Menlo Pk, CA 94025 USA.
[Doeppner, T.; LePape, S.; Ma, T.; Pak, A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[MacDonald, M. J.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
[Ali, S.; Barbrel, B.; Kraus, D.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94709 USA.
[Chen, Z.; Mo, M.] Univ Alberta, Dept Phys, Edmonton, AB T6G 2V4, Canada.
[Wei, M.] Gen Atom, Inertial Fus Technol Dept, San Diego, CA USA.
RP Gauthier, M (reprint author), SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
EM maxence.gauthier@stanford.edu
RI lepape, sebastien/J-3010-2015; gauthier, Maxence/K-2578-2014;
OI gauthier, Maxence/0000-0001-6608-9325; Granados,
Eduardo/0000-0002-6549-9303
FU DOE Office of Science, Fusion Energy Science [SF00515]; DOE Office of
Science, Fusion Energy Science under FWP [100182]; Peter-Paul-Ewald
Fellowship of the VolkswagenStiftung; DOE Office of Basic Energy
Sciences, Materials Sciences and Engineering Division
[DE-AC02-76SF00515]; U.S. Department of Energy [DE-AC52-07NA27344]
FX This work was performed at the Matter at Extreme Conditions (MEC)
instrument of LCLS, supported by the DOE Office of Science, Fusion
Energy Science under Contract No. SF00515. This work was supported by
the DOE Office of Science, Fusion Energy Science under FWP 100182, by
the Peter-Paul-Ewald Fellowship of the VolkswagenStiftung, and partially
supported by DOE Office of Basic Energy Sciences, Materials Sciences and
Engineering Division, under Contract No. DE-AC02-76SF00515. This work
was performed under the assistance of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344. The targets were supported by Laboratory Directed
Research and Development.
NR 11
TC 4
Z9 4
U1 1
U2 31
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR UNSP 11E616
DI 10.1063/1.4896175
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000203
PM 25430362
ER
PT J
AU Gerhardt, SP
Erickson, K
Kaita, R
Lawson, J
Mozulay, R
Mueller, D
Que, W
Rahman, N
Schneider, H
Smalley, G
Tresemer, K
AF Gerhardt, S. P.
Erickson, K.
Kaita, R.
Lawson, J.
Mozulay, R.
Mueller, D.
Que, W.
Rahman, N.
Schneider, H.
Smalley, G.
Tresemer, K.
TI Magnetic diagnostics for equilibrium reconstruction and realtime plasma
control in NSTX-Upgrade
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID SPHERICAL TORUS EXPERIMENT; RESISTIVE WALL MODE; DIII-D PLASMAS;
HIGH-BETA; FEEDBACK STABILIZATION; DISRUPTION PREDICTOR; TOKAMAK
PLASMAS; ASDEX UPGRADE; COILS; JET
AB This paper describes aspects of magnetic diagnostics for realtime control in National Spherical Torus Experiment-Upgrade (NSTX-U). The sensor arrangement on the upgraded center column is described. New analog and digital circuitry for processing the plasma current Rogowski data are presented. An improved algorithm for estimating the plasma vertical velocity for feedback control is presented. (C) 2014 AIP Publishing LLC.
C1 [Gerhardt, S. P.; Erickson, K.; Kaita, R.; Lawson, J.; Mozulay, R.; Mueller, D.; Que, W.; Rahman, N.; Schneider, H.; Smalley, G.; Tresemer, K.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Gerhardt, SP (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM sgerhard@pppl.gov
FU United States Department of Energy (DoE) [DE-AC02-09CH11466]
FX This research was funded by the United States Department of Energy (DoE)
under Contract No. DE-AC02-09CH11466.
NR 43
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U1 2
U2 13
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E807
DI 10.1063/1.4889781
PG 5
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000213
PM 25430372
ER
PT J
AU Gomez, MR
Hansen, SB
Peterson, KJ
Bliss, DE
Carlson, AL
Lamppa, DC
Schroen, DG
Rochau, GA
AF Gomez, M. R.
Hansen, S. B.
Peterson, K. J.
Bliss, D. E.
Carlson, A. L.
Lamppa, D. C.
Schroen, D. G.
Rochau, G. A.
TI Magnetic field measurements via visible spectroscopy on the Z machine
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Sandia's Z Machine uses its high current to magnetically implode targets relevant to inertial confinement fusion. Since target performance is highly dependent on the applied drive field, measuring magnetic field at the target is essential for accurate simulations. Recently, the magnetic field at the target was measured through splitting of the sodium 3s-3p doublet at 5890 and 5896 angstrom. Spectroscopic dopants were applied to the exterior of the target, and spectral lines were observed in absorption. Magnetic fields in excess of 200 T were measured, corresponding to drive currents of approximately 5 MA early in the pulse. (C) 2014 AIP Publishing LLC.
C1 [Gomez, M. R.; Hansen, S. B.; Peterson, K. J.; Bliss, D. E.; Carlson, A. L.; Lamppa, D. C.; Rochau, G. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Schroen, D. G.] Gen Atom Co, San Diego, CA 92121 USA.
RP Gomez, MR (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM mrgomez@sandia.gov
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX The authors would like to thank J. E. Bailey, M. E. Cuneo, and D. B.
Sinars for their support of this measurement. They also thank D. J.
Ampleford, T. J. Awe, A. J. Harvey-Thompson, B. Jones, P. F. Knapp, and
R. D. McBride for allowing ride-along measurements to develop this
diagnostic capability on their experiments. 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 No. DE-AC04-94AL85000.
NR 11
TC 5
Z9 5
U1 1
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E609
DI 10.1063/1.4891304
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000196
PM 25430355
ER
PT J
AU Hager, JD
Lanier, NE
Kline, JL
Flippo, KA
Bruns, HC
Schneider, M
Saculla, M
McCarville, T
AF Hager, J. D.
Lanier, N. E.
Kline, J. L.
Flippo, K. A.
Bruns, H. C.
Schneider, M.
Saculla, M.
McCarville, T.
TI A split imaging spectrometer for temporally and spatially resolved
titanium absorption spectroscopy
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID DENSITY FOAM TARGETS; RADIATIVELY HEATED FOAM; RAY FRAMING CAMERA;
IONIZATION FRONTS; FACILITY; DRIVEN
AB We present a temporally and a spatially resolved spectrometer for titanium x-ray absorption spectroscopy along 2 axial symmetric lines-of-sight. Each line-of-sight of the instrument uses an elliptical crystal to acquire both the 2p and 3p Ti absorption lines on a single, time gated channel of the instrument. The 2 axial symmetric lines-of-sight allow the 2p and 3p absorption features to be measured through the same point in space using both channels of the instrument. The spatially dependent material temperature can be inferred by observing the 2p and the 3p Ti absorption features. The data are recorded on a two strip framing camera with each strip collecting data from a single line-of-sight. The design is compatible for use at both the OMEGA laser and the National Ignition Facility. The spectrometer is intended to measure the material temperature behind a Marshak wave in a radiatively driven SiO2 foam with a Ti foam tracer. In this configuration, a broad band CsI back-lighter will be used for a source and the Ti absorption spectrum measured. (C) 2014 AIP Publishing LLC.
C1 [Hager, J. D.; Lanier, N. E.; Kline, J. L.; Flippo, K. A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Bruns, H. C.; Schneider, M.; Saculla, M.; McCarville, T.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Hager, JD (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM hager@lanl.gov
RI Flippo, Kirk/C-6872-2009;
OI Flippo, Kirk/0000-0002-4752-5141; Kline, John/0000-0002-2271-9919
FU U.S. Department of Energy by LANL [DE-AC52-06NA25396]
FX This work was performed under the auspices of the U.S. Department of
Energy by LANL under Contract No. DE-AC52-06NA25396.
NR 21
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D601
DI 10.1063/1.4885843
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000018
PM 25430177
ER
PT J
AU Hall, GN
Izumi, N
Tommasini, R
Carpenter, AC
Palmer, NE
Zacharias, R
Felker, B
Holder, JP
Allen, FV
Bell, PM
Bradley, D
Montesanti, R
Landen, OL
AF Hall, G. N.
Izumi, N.
Tommasini, R.
Carpenter, A. C.
Palmer, N. E.
Zacharias, R.
Felker, B.
Holder, J. P.
Allen, F. V.
Bell, P. M.
Bradley, D.
Montesanti, R.
Landen, O. L.
TI AXIS: An instrument for imaging Compton radiographs using the Advanced
Radiography Capability on the NIF
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Compton radiography is an important diagnostic for Inertial Confinement Fusion (ICF), as it provides a means to measure the density and asymmetries of the DT fuel in an ICF capsule near the time of peak compression. The AXIS instrument (ARC (Advanced Radiography Capability) X-ray Imaging System) is a gated detector in development for the National Ignition Facility (NIF), and will initially be capable of recording two Compton radiographs during a single NIF shot. The principal reason for the development of AXIS is the requirement for significantly improved detection quantum efficiency (DQE) at high x-ray energies. AXIS will be the detector for Compton radiography driven by the ARC laser, which will be used to produce Bremsstrahlung X-ray backlighter sources over the range of 50 keV-200 keV for this purpose. It is expected that AXIS will be capable of recording these high-energy x-rays with a DQE several times greater than other X-ray cameras at NIF, as well as providing a much larger field of view of the imploded capsule. AXIS will therefore provide an image with larger signal-to-noise that will allow the density and distribution of the compressed DT fuel to be measured with significantly greater accuracy as ICF experiments are tuned for ignition. (C) 2014 AIP Publishing LLC.
C1 [Hall, G. N.; Izumi, N.; Tommasini, R.; Carpenter, A. C.; Palmer, N. E.; Zacharias, R.; Felker, B.; Holder, J. P.; Allen, F. V.; Bell, P. M.; Bradley, D.; Montesanti, R.; Landen, O. L.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Hall, GN (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM hall98@llnl.gov
RI IZUMI, Nobuhiko/J-8487-2016; Tommasini, Riccardo/A-8214-2009
OI IZUMI, Nobuhiko/0000-0003-1114-597X; Tommasini,
Riccardo/0000-0002-1070-3565
FU (U.S.) Department of Energy (DOE), National Nuclear Security
Administration [DE-AC52-07NA27344 (LLNL-JRNL-555712)]
FX Lawrence Livermore National Laboratory is operated by Lawrence Livermore
National Security, LLC, for the (U.S.) Department of Energy (DOE),
National Nuclear Security Administration under Contract No.
DE-AC52-07NA27344 (LLNL-JRNL-555712).
NR 10
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U1 1
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D624
DI 10.1063/1.4892558
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000041
PM 25430200
ER
PT J
AU Hall, GN
Burdiak, GC
Suttle, L
Stuart, NH
Swadling, GF
Lebedev, SV
Smith, RA
Patankar, S
Suzuki-Vidal, F
de Grouchy, P
Harvey-Thompson, AJ
Bennett, M
Bland, SN
Pickworth, L
Skidmorec, J
AF Hall, G. N.
Burdiak, G. C.
Suttle, L.
Stuart, N. H.
Swadling, G. F.
Lebedev, S. V.
Smith, R. A.
Patankar, S.
Suzuki-Vidal, F.
de Grouchy, P.
Harvey-Thompson, A. J.
Bennett, M.
Bland, S. N.
Pickworth, L.
Skidmorec, J.
TI Monochromatic radiography of high energy density physics experiments on
the MAGPIE generator
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID RAY; CRYSTALS; PLASMA
AB A monochromatic X-ray backlighter based on Bragg reflection from a spherically bent quartz crystal has been developed for the MAGPIE pulsed power generator at Imperial College (1.4 MA, 240 ns) [I. H. Mitchell et al., Rev. Sci. Instrum. 67, 1533 (2005)]. This instrument has been used to diagnose high energy density physics experiments with 1.865 keV radiation (Silicon He-alpha) from a laser plasma source driven by a similar to 7 J, 1 ns pulse from the Cerberus laser. The design of the diagnostic, its characterisation and performance, and initial results in which the instrument was used to radiograph a shock physics experiment on MAGPIE are discussed. (C) 2014 AIP Publishing LLC.
C1 [Hall, G. N.; Burdiak, G. C.; Suttle, L.; Stuart, N. H.; Swadling, G. F.; Lebedev, S. V.; Smith, R. A.; Patankar, S.; Suzuki-Vidal, F.; de Grouchy, P.; Harvey-Thompson, A. J.; Bennett, M.; Bland, S. N.; Pickworth, L.; Skidmorec, J.] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BW, England.
RP Hall, GN (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM gareth.hall@imperial.ac.uk
RI Hall, Gareth/C-4179-2015; Swadling, George/S-5980-2016;
OI Swadling, George/0000-0001-8370-8837; Stuart,
Nicholas/0000-0003-2882-2500
FU Imperial College Junior Research Fellowship scheme; EPSRC
FX The author would like to acknowledge the support of the Imperial College
Junior Research Fellowship scheme and the EPSRC. The Author would also
like to thank Daniel B. Sinars of Sandia National Laboratories,
Albuquerque, for his advice and support.
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D608
DI 10.1063/1.4890262
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000025
PM 25430184
ER
PT J
AU Haugh, MJ
Wu, M
Jacoby, KD
Loisel, GP
AF Haugh, M. J.
Wu, M.
Jacoby, K. D.
Loisel, G. P.
TI Measuring the x-ray resolving power of bent potassium acid phthalate
diffraction crystals
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB This report presents the results from measuring the X-ray resolving power of a curved potassium acid phthalate (KAP(001)) spectrometer crystal using two independent methods. It is part of a continuing effort to measure the fundamental diffraction properties of bent crystals that are used to study various characteristics of high temperature plasmas. Bent crystals like KAP(001) do not usually have the same diffraction properties as corresponding flat crystals. Models that do exist to calculate the effect of bending the crystal on the diffraction properties have simplifying assumptions and their accuracy limits have not been adequately determined. The type of crystals that we measured is being used in a spectrometer on the Z machine at Sandia National Laboratories in Albuquerque, New Mexico. The first technique for measuring the crystal resolving power measures the X-ray spectral line width of the characteristic lines from several metal anodes. The second method uses a diode X-ray source and a double crystal diffractometer arrangement to measure the reflectivity curve of the KAP(001) crystal. The width of that curve is inversely proportional to the crystal resolving power. The measurement results are analyzed and discussed. (C) 2014 AIP Publishing LLC.
C1 [Haugh, M. J.; Jacoby, K. D.] Natl Secur Technol LLC, Livermore, CA 94550 USA.
[Wu, M.; Loisel, G. P.] Sandia Natl Labs, Albuquerque, NM 87123 USA.
RP Haugh, MJ (reprint author), Natl Secur Technol LLC, Livermore, CA 94550 USA.
EM haughmj@nv.doe.gov
FU U.S. Department of Energy [DE-AC52-06NA25946]
FX This manuscript has been authored by National Security Technologies,
LLC, under Contract No. DE-AC52-06NA25946 with the U.S. Department of
Energy. The United States Government retains and the publisher, by
accepting the article for publication, acknowledges that the United
States Government retains a non-exclusive, paid-up, irrevocable,
world-wide license to publish or reproduce the published form of this
manuscript, or allow others to do so, for United States Government
purposes.
NR 14
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U1 0
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D619
DI 10.1063/1.4891919
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000036
PM 25430195
ER
PT J
AU Herrmann, HW
Kim, YH
Young, CS
Fatherley, VE
Lopez, FE
Oertel, JA
Malone, RM
Rubery, MS
Horsfield, CJ
Stoeffl, W
Zylstra, AB
Shmayda, WT
Batha, SH
AF Herrmann, H. W.
Kim, Y. H.
Young, C. S.
Fatherley, V. E.
Lopez, F. E.
Oertel, J. A.
Malone, R. M.
Rubery, M. S.
Horsfield, C. J.
Stoeffl, W.
Zylstra, A. B.
Shmayda, W. T.
Batha, S. H.
TI Extended performance gas Cherenkov detector for gamma-ray detection in
high-energy density experiments
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB A new Gas Cherenkov Detector (GCD) with low-energy threshold and high sensitivity, currently known as Super GCD (or GCD-3 at OMEGA), is being developed for use at the OMEGA Laser Facility and the National Ignition Facility (NIF). Super GCD is designed to be pressurized to <= 400 psi (absolute) and uses all metal seals to allow the use of fluorinated gases inside the target chamber. This will allow the gamma energy threshold to be run as low at 1.8 MeV with 400 psi (absolute) of C2F6, opening up a new portion of the gamma ray spectrum. Super GCD operating at 20 cm from TCC will be similar to 400 x more efficient at detecting DT fusion gammas at 16.7 MeV than the Gamma Reaction History diagnostic at NIF (GRH-6m) when operated at their minimum thresholds. (C) 2014 AIP Publishing LLC.
C1 [Herrmann, H. W.; Kim, Y. H.; Young, C. S.; Fatherley, V. E.; Lopez, F. E.; Oertel, J. A.; Batha, S. H.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Malone, R. M.] Natl Secur Technol LLC, Los Alamos, NM 87544 USA.
[Rubery, M. S.; Horsfield, C. J.] Atom Weap Estab, Aldermaston RG7 4PR, Berks, England.
[Stoeffl, W.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Zylstra, A. B.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
[Shmayda, W. T.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
RP Herrmann, HW (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM herrmann@lanl.gov
NR 9
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U1 0
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E124
DI 10.1063/1.4892553
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000144
PM 25430303
ER
PT J
AU Hill, KW
Bitter, M
Delgado-Aparacio, L
Efthimion, P
Pablant, NA
Lu, J
Beiersdorfer, P
Chen, H
Magee, E
AF Hill, K. W.
Bitter, M.
Delgado-Aparacio, L.
Efthimion, P.
Pablant, N. A.
Lu, J.
Beiersdorfer, P.
Chen, H.
Magee, E.
TI Characterization of spatially resolved high resolution x-ray
spectrometers for high energy density physics and light source
experiments
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID SPECTRA
AB A high resolution 1D imaging x-ray spectrometer concept comprising a spherically bent crystal and a 2D pixelated detector is being optimized for diagnostics of small sources such as high energy density physics (HEDP) and synchrotron radiation or x-ray free electron laser experiments. This instrument is used on tokamak experiments for Doppler measurements of ion temperature and plasma flow velocity profiles. Laboratory measurements demonstrate a resolving power, E/Delta E of order 10 000 and spatial resolution better than 10 mu m. Initial tests of the high resolution instrument on HEDP plasmas are being performed. c 2014 AIP Publishing LLC.
C1 [Hill, K. W.; Bitter, M.; Delgado-Aparacio, L.; Efthimion, P.; Pablant, N. A.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Lu, J.] Chongqing Univ, Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400030, Peoples R China.
[Beiersdorfer, P.; Chen, H.; Magee, E.] Lawrence Livermore Natl Lab, Phys Div, Livermore, CA 94550 USA.
RP Hill, KW (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM khill@pppl.gov
FU (U.S.) Department of Energy (DOE) by Princeton Plasma Physics Laboratory
(PPPL) [DE-AC02-09CH-11466]; (U.S.) Department of Energy (DOE) by
Lawrence Livermore National Laboratory (LLNL) [DE-AC52-07NA-27344]
FX This work was performed under the auspices of the (U.S.) Department of
Energy (DOE) by Princeton Plasma Physics Laboratory (PPPL) under
Contract No. DE-AC02-09CH-11466 and Lawrence Livermore National
Laboratory (LLNL) under Contract No. DE-AC52-07NA-27344.
NR 16
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U1 0
U2 13
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D612
DI 10.1063/1.4890260
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000029
PM 25430188
ER
PT J
AU Hohenberger, M
Albert, F
Palmer, NE
Lee, JJ
Doppner, T
Divol, L
Dewald, EL
Bachmann, B
MacPhee, AG
LaCaille, G
Bradley, DK
Stoeckl, C
AF Hohenberger, M.
Albert, F.
Palmer, N. E.
Lee, J. J.
Doeppner, T.
Divol, L.
Dewald, E. L.
Bachmann, B.
MacPhee, A. G.
LaCaille, G.
Bradley, D. K.
Stoeckl, C.
TI Time-resolved measurements of the hot-electron population in
ignition-scale experiments on the National Ignition Facility
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID PLASMAS
AB In laser-driven inertial confinement fusion, hot electrons can preheat the fuel and prevent fusion-pellet compression to ignition conditions. Measuring the hot-electron population is key to designing an optimized ignition platform. The hot electrons in these high-intensity, laser-driven experiments, created via laser-plasma interactions, can be inferred from the bremsstrahlung generated by hot electrons interacting with the target. At the National Ignition Facility (NIF) [G. H. Miller, E. I. Moses, and C. R. Wuest, Opt. Eng. 43, 2841 (2004)], the filter-fluorescer x-ray (FFLEX) diagnostic-a multichannel, hard x-ray spectrometer operating in the 20-500 keV range-has been upgraded to provide fully time-resolved, absolute measurements of the bremsstrahlung spectrum with similar to 300 ps resolution. Initial time-resolved data exhibited significant background and low signal-to-noise ratio, leading to a redesign of the FFLEX housing and enhanced shielding around the detector. The FFLEX x-ray sensitivity was characterized with an absolutely calibrated, energy-dispersive high-purity germanium detector using the high-energy x-ray source at NSTec Livermore Operations over a range of K-shell fluorescence energies up to 111 keV (U K-beta). The detectors impulse response function was measured in situ on NIF short-pulse (similar to 90 ps) experiments, and in off-line tests. (C) 2014 AIP Publishing LLC.
C1 [Hohenberger, M.; Stoeckl, C.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
[Albert, F.; Palmer, N. E.; Doeppner, T.; Divol, L.; Dewald, E. L.; Bachmann, B.; MacPhee, A. G.; LaCaille, G.; Bradley, D. K.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Lee, J. J.] Natl Secur Technol LLC, Livermore, CA 94551 USA.
RP Hohenberger, M (reprint author), Univ Rochester, Laser Energet Lab, 250 E River Rd, Rochester, NY 14623 USA.
EM mhoh@lle.rochester.edu
RI Albert, Felicie/G-2645-2013
FU Department of Energy National Nuclear Security Administration
[DE-NA0001944]; University of Rochester; New York State Energy Research
and Development Authority; U.S. Department of Energy, National Nuclear
Security Administration [DE-AC52-07NA27344]; DOE [LLNL-PROC-655392]
FX This material is based upon work supported by the Department of Energy
National Nuclear Security Administration under Award No. DE-NA0001944,
the University of Rochester, and the New York State Energy Research and
Development Authority. Lawrence Livermore National Laboratory is
operated by Lawrence Livermore National Security, LLC, for the U.S.
Department of Energy, National Nuclear Security Administration under
Contract No. DE-AC52-07NA27344. The support of DOE does not constitute
an endorsement by DOE of the views expressed in this article.
(LLNL-PROC-655392.)
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PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D501
DI 10.1063/1.4890537
PG 5
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000016
PM 25430175
ER
PT J
AU Howard, NT
Sung, C
White, AE
AF Howard, N. T.
Sung, C.
White, A. E.
TI Measurement of electron temperature fluctuations using a tunable
correlation electron cyclotron emission system on Alcator C-Mod
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID CORE; TRANSPORT
AB A tunable correlation electron cyclotron (CECE) system was recently installed on the Alcator C-Mod tokamak to provide local, quantitative measurement of electron temperature fluctuations in the tokamak core. This system represents a significant upgrade from the original CECE system, expanding the measurement capabilities from 4 to 8 total channels, including 2 remotely tunable YIG filters (6-18 GHz; 200 MHz bandwidth). Additional upgrades were made to the optical system to provide enhanced poloidal resolution and allow for measurement of turbulent fluctuations below k(theta)rho(s) < 0.3. These expanded capabilities allow for single shot measurement of partial temperature fluctuation profiles in the region rho = 0.7 - 0.9 (square root of normalized toroidal flux) in a wide variety of plasma conditions. These measurements are currently being used to provide stringent tests of the gyrokinetic model in ongoing model validation efforts. Details of the hardware upgrades, turbulent fluctuation measurements, and ongoing comparisons with simulations are presented. (C) 2014 AIP Publishing LLC.
C1 [Howard, N. T.] ORISE, Oak Ridge, TN 37831 USA.
[Sung, C.; White, A. E.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
RP Howard, NT (reprint author), ORISE, Oak Ridge, TN 37831 USA.
EM nthoward@psfc.mit.edu
NR 14
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U1 0
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D811
DI 10.1063/1.4886422
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000065
PM 25430224
ER
PT J
AU Huntington, CM
Maddox, BR
Park, HS
Prisbrey, S
Remington, BA
AF Huntington, C. M.
Maddox, B. R.
Park, H. -S.
Prisbrey, S.
Remington, B. A.
TI Spectral content of buried Ag foils at 10(16) W/cm(2) laser illumination
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID NATIONAL-IGNITION-FACILITY
AB Sources of 5-12 keV thermal He alpha x-rays are readily generated by laser irradiation of mid-Z foils at intensities >10(14) W/cm(2), and are widely used as probes for inertial confinement fusion and high-energy-density experiments. Higher energy 17-50 keV x-ray sources are efficiently produced from "cold" K alpha emission using short pulse, petawatt lasers at intensities >10(18) W/cm(2) [H.-S. Park, B. R. Maddox et al., "High-resolution 17-75 keV backlighters for high energy density experiments," Phys. Plasmas 15(7), 072705 (2008); B. R. Maddox, H. S. Park, B. A. Remington et al., "Absolute measurements of x-ray backlighter sources at energies above 10 keV," ibid. 18(5), 056709 (2011)]. However, when long pulse (>1 ns) lasers are used with Z > 30 elements, the spectrum contains contributions from both K shell transitions and from ionized atomic states. Here we show that by sandwiching a silver foil between layers of high-density carbon, the ratio of K alpha:He alpha in the x-ray spectrum is significant increased over directly illuminated Ag foils, with narrower lines from K-shell transitions. Additionally, the emission volume is more localized for the sandwiched target, producing a more planar x-ray sheet. This technique may be useful for generating probes requiring spectral purity and a limited spatial extent, for example, in incoherent x-ray Thomson scattering experiments. (C) 2014 AIP Publishing LLC.
C1 [Huntington, C. M.; Maddox, B. R.; Park, H. -S.; Prisbrey, S.; Remington, B. A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Huntington, CM (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM huntington4@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344.
NR 14
TC 0
Z9 0
U1 0
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D631
DI 10.1063/1.4895566
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000048
PM 25430207
ER
PT J
AU Izumi, N
Hall, GN
Carpenter, AC
Allen, FV
Cruz, JG
Felker, B
Hargrove, D
Holder, J
Kilkenny, JD
Lumbard, A
Montesanti, R
Palmer, NE
Piston, K
Stone, G
Thao, M
Vern, R
Zacharias, R
Landen, OL
Tommasini, R
Bradley, DK
Bell, PM
AF Izumi, N.
Hall, G. N.
Carpenter, A. C.
Allen, F. V.
Cruz, J. G.
Felker, B.
Hargrove, D.
Holder, J.
Kilkenny, J. D.
Lumbard, A.
Montesanti, R.
Palmer, N. E.
Piston, K.
Stone, G.
Thao, M.
Vern, R.
Zacharias, R.
Landen, O. L.
Tommasini, R.
Bradley, D. K.
Bell, P. M.
TI Development of a dual MCP framing camera for high energy x-rays
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID DETECTORS
AB Recently developed diagnostic techniques at LLNL require recording backlit images of extremely dense imploded plasmas using hard x-rays, and demand the detector to be sensitive to photons with energies higher than 50 keV [R. Tommasini et al., Phys. Phys. Plasmas 18, 056309 (2011); G. N. Hall et al., "AXIS: An instrument for imaging Compton radiographs using ARC on the NIF," Rev. Sci. Instrum. (these proceedings)]. To increase the sensitivity in the high energy region, we propose to use a combination of two MCPs. The first MCP is operated in a low gain regime and works as a thick photocathode, and the second MCP works as a high gain electron multiplier. We tested the concept of this dual MCP configuration and succeeded in obtaining a detective quantum efficiency of 4.5% for 59 keV x-rays, 3 times larger than with a single plate of the thickness typically used in NIF framing cameras. (C) 2014 AIP Publishing LLC.
C1 [Izumi, N.; Hall, G. N.; Carpenter, A. C.; Allen, F. V.; Cruz, J. G.; Felker, B.; Hargrove, D.; Holder, J.; Lumbard, A.; Montesanti, R.; Palmer, N. E.; Piston, K.; Stone, G.; Thao, M.; Vern, R.; Zacharias, R.; Landen, O. L.; Tommasini, R.; Bradley, D. K.; Bell, P. M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Kilkenny, J. D.] Gen Atom Co, San Diego, CA 92121 USA.
RP Izumi, N (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM izumi2@llnl.gov
RI IZUMI, Nobuhiko/J-8487-2016; Tommasini, Riccardo/A-8214-2009
OI IZUMI, Nobuhiko/0000-0003-1114-597X; Tommasini,
Riccardo/0000-0002-1070-3565
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344.
NR 12
TC 2
Z9 3
U1 2
U2 16
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D623
DI 10.1063/1.4891712
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000040
PM 25430199
ER
PT J
AU Johnson, MG
Frenje, JA
Li, CK
Seguin, FH
Petrasso, RD
Bionta, RM
Casey, DT
Caggiano, JA
Hatarik, R
Khater, HY
Sayre, DB
Knauer, JP
Sangster, TC
Herrmann, HW
Kilkenny, JD
AF Johnson, M. Gatu
Frenje, J. A.
Li, C. K.
Seguin, F. H.
Petrasso, R. D.
Bionta, R. M.
Casey, D. T.
Caggiano, J. A.
Hatarik, R.
Khater, H. Y.
Sayre, D. B.
Knauer, J. P.
Sangster, T. C.
Herrmann, H. W.
Kilkenny, J. D.
TI Measurements of fuel and ablator rho R in Symmetry-Capsule implosions
with the Magnetic Recoil neutron Spectrometer (MRS) on the National
Ignition Facility
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID OMEGA
AB The Magnetic Recoil neutron Spectrometer (MRS) on the National Ignition Facility (NIF) measures the neutron spectrum in the energy range of 4-20 MeV. This paper describes MRS measurements of DT-fuel and CH-ablator rho R in DT gas-filled symmetry-capsule implosions at the NIF. DT-fuel rho R's of 80-140 mg/cm(2) and CH-ablator rho R's of 400-680 mg/cm(2) are inferred from MRS data. The measurements were facilitated by an improved correction of neutron-induced background in the lowenergy part of the MRS spectrum. This work demonstrates the accurate utilization of the complete MRS-measured neutron spectrum for diagnosing NIF DT implosions. (C) 2014 AIP Publishing LLC.
C1 [Johnson, M. Gatu; Frenje, J. A.; Li, C. K.; Seguin, F. H.; Petrasso, R. D.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
[Bionta, R. M.; Casey, D. T.; Caggiano, J. A.; Hatarik, R.; Khater, H. Y.; Sayre, D. B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Knauer, J. P.; Sangster, T. C.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
[Herrmann, H. W.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Kilkenny, J. D.] Gen Atom Co, San Diego, CA 92186 USA.
RP Johnson, MG (reprint author), MIT, Plasma Sci & Fus Ctr, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
EM gatu@psfc.mit.edu
FU U.S. DOE by MIT [DE-NA0001857]; Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. DOE by MIT under
Contract No. DE-NA0001857 and Lawrence Livermore National Laboratory
under Contract No. DE-AC52-07NA27344.
NR 16
TC 4
Z9 4
U1 1
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E104
DI 10.1063/1.4886418
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000124
ER
PT J
AU Kim, Y
Herrmann, HW
Jorgenson, HJ
Barlow, DB
Young, CS
Stoeffl, W
Casey, D
Clancy, T
Lopez, FE
Oertel, JA
Hilsabeck, T
Moy, K
Batha, SH
AF Kim, Y.
Herrmann, H. W.
Jorgenson, H. J.
Barlow, D. B.
Young, C. S.
Stoeffl, W.
Casey, D.
Clancy, T.
Lopez, F. E.
Oertel, J. A.
Hilsabeck, T.
Moy, K.
Batha, S. H.
TI Conceptual design of the gamma-to-electron magnetic spectrometer for the
National Ignition Facility
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB The Gamma-to-Electron Magnetic Spectrometer (GEMS) diagnostic is designed to measure the prompt gamma-ray energy spectrum during high yield deuterium-tritium (DT) implosions at the National Ignition Facility (NIF). The prompt gamma-ray spectrum will provide "burn-averaged" observables, including total DT fusion yield, total areal density (rho R), ablator rho R, and fuel rho R. These burn-averaged observables are unique because they are essentially averaged over 4 pi, providing a global reference for the line-of-sight-specific measurements typical of x-ray and neutron diagnostics. The GEMS conceptual design meets the physics-based requirements: Delta E/E = 3%-5% can be achieved in the range of 2-25 MeV gamma-ray energy. Minimum DT neutron yields required for 15% measurement uncertainty at low-resolution mode are: 5 x 10(14) DT-n for ablator rho R (at 0.2 g/cm(2)); 2 x 10(15) DT-n for total DT yield (at 4.2 x 10(-5) gamma/n); and 1 x 10(16) DT-n for fuel rho R (at 1 g/cm(2)). (C) 2014 AIP Publishing LLC.
C1 [Kim, Y.; Herrmann, H. W.; Jorgenson, H. J.; Barlow, D. B.; Young, C. S.; Lopez, F. E.; Oertel, J. A.; Batha, S. H.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Stoeffl, W.; Casey, D.; Clancy, T.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Hilsabeck, T.] Gen Atom Co, San Diego, CA 92186 USA.
[Moy, K.] Natl Secur Technol, Special Technol Lab, Santa Barbara, CA 93111 USA.
RP Kim, Y (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM yhkim@lanl.gov
NR 7
TC 4
Z9 4
U1 1
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E122
DI 10.1063/1.4892900
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000142
PM 25430301
ER
PT J
AU Klein, SR
Manuel, MJE
Pollock, BB
Gillespie, RS
Deininger, M
Kuranz, CC
Keiter, PA
Drake, RP
AF Klein, S. R.
Manuel, M. J. -E.
Pollock, B. B.
Gillespie, R. S.
Deininger, M.
Kuranz, C. C.
Keiter, P. A.
Drake, R. P.
TI Construction of a solenoid used on a magnetized plasma experiment
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Creating magnetized jets in the laboratory is relevant to studying young stellar objects, but generating these types of plasmas within the laboratory setting has proven to be challenging. Here, we present the construction of a solenoid designed to produce an axial magnetic field with strengths in the gap of up to 5 T. This novel design was a compact 75 mm x 63 mm x 88 mm, allowing it to be placed in the Titan target chamber. It was robust, surviving over 50 discharges producing fields less than or similar to 5 T, reaching a peak magnetic field of 12.5 T. (C) 2014 AIP Publishing LLC.
C1 [Klein, S. R.; Manuel, M. J. -E.; Gillespie, R. S.; Kuranz, C. C.; Keiter, P. A.; Drake, R. P.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
[Pollock, B. B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Deininger, M.] Univ Michigan, Med Innovat Ctr, Ann Arbor, MI 48109 USA.
RP Klein, SR (reprint author), Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
RI Manuel, Mario/L-3213-2015; Drake, R Paul/I-9218-2012
OI Manuel, Mario/0000-0002-5834-1161; Drake, R Paul/0000-0002-5450-9844
FU (U.S.) Department of Energy (DOE), through the NNSA-DS [DE-NA0001840];
(U.S.) Department of Energy (DOE), through SC-OFES Joint Program in
High-Energy-Density Laboratory Plasmas [DE-NA0001840]; National Laser
User Facility Program [NA0000850]; National Laser User Facility Program
through the Laboratory for Laser Energetics, University of Rochester by
the NNSA/OICF [DE-FC52-08NA28302]
FX This work is funded by the (U.S.) Department of Energy (DOE), through
the NNSA-DS and SC-OFES Joint Program in High-Energy-Density Laboratory
Plasmas, Grant No. DE-NA0001840, and the National Laser User Facility
Program, Grant No. DE-NA0000850, and through the Laboratory for Laser
Energetics, University of Rochester by the NNSA/OICF under Cooperative
Agreement No. DE-FC52-08NA28302.
NR 2
TC 3
Z9 3
U1 2
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E812
DI 10.1063/1.4891060
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000218
PM 25430377
ER
PT J
AU Klepper, CC
Martin, EH
Isler, RC
Colas, L
Goniche, M
Hillairet, J
Panayotis, S
Pegourie, B
Jacquot, J
Lotte, P
Colledani, G
Biewer, TM
Caughman, JB
Ekedahl, A
Green, DL
Harris, JH
Hillis, DL
Shannon, SC
Litaudon, X
AF Klepper, C. C.
Martin, E. H.
Isler, R. C.
Colas, L.
Goniche, M.
Hillairet, J.
Panayotis, S.
Pegourie, B.
Jacquot, J.
Lotte, Ph.
Colledani, G.
Biewer, T. M.
Caughman, J. B.
Ekedahl, A.
Green, D. L.
Harris, J. H.
Hillis, D. L.
Shannon, S. C.
Litaudon, X.
TI Probing the plasma near high power wave launchers in fusion devices for
static and dynamic electric fields (invited)
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID TORE-SUPRA; HEAT-FLUX
AB An exploratory study was carried out in the long-pulse tokamak Tore Supra, to determine if electric fields in the plasma around high-power, RF wave launchers could be measured with non-intrusive, passive, optical emission spectroscopy. The focus was in particular on the use of the external electric field Stark effect. The feasibility was found to be strongly dependent on the spatial extent of the electric fields and overlap between regions of strong (>similar to 1 kV/cm) electric fields and regions of plasma particle recycling and plasma-induced, spectral line emission. Most amenable to the measurement was the RF electric field in edge plasma, in front of a lower hybrid heating and current drive launcher. Electric field strengths and direction, derived from fitting the acquired spectra to a model including time-dependent Stark effect and the tokamak-range magnetic field Zeeman-effect, were found to be in good agreement with full-wave modeling of the observed launcher. (C) 2014 AIP Publishing LLC.
C1 [Klepper, C. C.; Martin, E. H.; Isler, R. C.; Biewer, T. M.; Caughman, J. B.; Green, D. L.; Harris, J. H.; Hillis, D. L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Martin, E. H.; Shannon, S. C.] N Carolina State Univ, Raleigh, NC 27607 USA.
[Colas, L.; Goniche, M.; Hillairet, J.; Panayotis, S.; Pegourie, B.; Jacquot, J.; Lotte, Ph.; Colledani, G.; Ekedahl, A.; Litaudon, X.] CEA, IRFM, F-13108 St Paul Les Durance, France.
RP Klepper, CC (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM kleppercc@ornl.gov
RI Shannon, Steven/O-3420-2014; Klepper, C.Christopher/I-9904-2016;
Caughman, John/R-4889-2016;
OI Shannon, Steven/0000-0001-8317-6949; Klepper,
C.Christopher/0000-0001-9107-8337; Caughman, John/0000-0002-0609-1164;
Isler, Ralph/0000-0002-5368-7200
FU US DOE [DE-AC05-00OR22725]
FX Valuable feedback on RF physics and RF-edge interactions from Dr.
Cornwall Lau, ORNL, is kindly acknowledged, as were valuable discussions
with Dr. Ph. Jacquet and Dr. K. Kirov. CCFE, UK, on LH physics. This
work was supported in part by the US DOE under Contract No.
DE-AC05-00OR22725 with UT-Battelle, LLC.
NR 13
TC 0
Z9 0
U1 3
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E301
DI 10.1063/1.4890247
PG 5
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000147
PM 25430306
ER
PT J
AU Konig, R
Biel, W
Biedermann, C
Burhenn, R
Cseh, G
Czarnecka, A
Endler, M
Estrada, T
Grulke, O
Hathiramani, D
Hirsch, M
Jablonski, S
Jakubowski, M
Kaczmarczyk, J
Kasparek, W
Kocsis, G
Kornejew, P
Kramer-Flecken, A
Krychowiak, M
Kubkowska, M
Langenberg, A
Laux, M
Liang, Y
Lorenz, A
Neubauer, O
Otte, M
Pablant, N
Pasch, E
Pedersen, TS
Schmitz, O
Schneider, W
Schuhmacher, H
Schweer, B
Thomsen, H
Szepesi, T
Wiegel, B
Windisch, T
Wolf, S
Zhang, D
Zoletnik, S
AF Koenig, R.
Biel, W.
Biedermann, C.
Burhenn, R.
Cseh, G.
Czarnecka, A.
Endler, M.
Estrada, T.
Grulke, O.
Hathiramani, D.
Hirsch, M.
Jablonski, S.
Jakubowski, M.
Kaczmarczyk, J.
Kasparek, W.
Kocsis, G.
Kornejew, P.
Kraemer-Flecken, A.
Krychowiak, M.
Kubkowska, M.
Langenberg, A.
Laux, M.
Liang, Y.
Lorenz, A.
Neubauer, O.
Otte, M.
Pablant, N.
Pasch, E.
Pedersen, T. S.
Schmitz, O.
Schneider, W.
Schuhmacher, H.
Schweer, B.
Thomsen, H.
Szepesi, T.
Wiegel, B.
Windisch, T.
Wolf, S.
Zhang, D.
Zoletnik, S.
TI Status of the diagnostics development for the first operation phase of
the stellarator Wendelstein 7-X
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB An overview of the diagnostics which are essential for the first operational phase of Wendelstein 7-X and the set of diagnostics expected to be ready for operation at this time are presented. The ongoing investigations of how to cope with high levels of stray Electron Cyclotron Resonance Heating (ECRH) radiation in the ultraviolet (UV)/visible/infrared (IR) optical diagnostics are described.
C1 [Koenig, R.; Biedermann, C.; Burhenn, R.; Endler, M.; Grulke, O.; Hathiramani, D.; Hirsch, M.; Jakubowski, M.; Kornejew, P.; Krychowiak, M.; Langenberg, A.; Laux, M.; Lorenz, A.; Otte, M.; Pasch, E.; Pedersen, T. S.; Schneider, W.; Thomsen, H.; Windisch, T.; Zhang, D.] Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany.
[Biel, W.; Kraemer-Flecken, A.; Liang, Y.; Neubauer, O.; Schweer, B.] Forschungszentrum Julich, Inst Energy & Climate Res, D-52425 Julich, Germany.
[Cseh, G.; Kocsis, G.; Szepesi, T.; Zoletnik, S.] RMI, Wigner RCP, H-1121 Budapest, Hungary.
[Czarnecka, A.; Jablonski, S.; Kaczmarczyk, J.; Kubkowska, M.] IFPiLM, PL-01497 Warsaw, Poland.
[Estrada, T.] CIEMAT, Lab Nacl Fus, Madrid, Spain.
[Kasparek, W.; Wolf, S.] Univ Stuttgart, IGVP, D-70569 Stuttgart, Germany.
[Pablant, N.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Schmitz, O.] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA.
[Schuhmacher, H.; Wiegel, B.] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany.
RP Konig, R (reprint author), Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany.
EM rlk@ipp.mpg.de
RI Estrada, Teresa/N-9048-2016;
OI Estrada, Teresa/0000-0001-6205-2656; Biel, Wolfgang/0000-0001-6617-6533;
Neubauer, Olaf/0000-0002-4516-4397; Kramer-Flecken,
Andreas/0000-0003-4146-5085
NR 13
TC 2
Z9 2
U1 0
U2 17
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D818
DI 10.1063/1.4889905
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000072
PM 25430231
ER
PT J
AU Kraus, D
Doppner, T
Kritcher, AL
Bachmann, B
Chapman, DA
Collins, GW
Glenzer, SH
Hawreliak, JA
Landen, OL
Ma, T
Le Pape, S
Neumayer, P
Swift, DC
Falcone, RW
AF Kraus, D.
Doeppner, T.
Kritcher, A. L.
Bachmann, B.
Chapman, D. A.
Collins, G. W.
Glenzer, S. H.
Hawreliak, J. A.
Landen, O. L.
Ma, T.
Le Pape, S.
Neumayer, P.
Swift, D. C.
Falcone, R. W.
TI X-ray continuum emission spectroscopy from hot dense matter at Gbar
pressures
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB We have measured the time-resolved x-ray continuum emission spectrum of similar to 30 times compressed polystyrene created at stagnation of spherically convergent shock waves within the Gbar fundamental science campaign at the National Ignition Facility. From an exponential emission slope between 7.7 keV and 8.1 keV photon energy and using an emission model which accounts for reabsorption, we infer an average electron temperature of 375 +/- 21 eV, which is in good agreement with HYDRA-1D simulations. (C) 2014 AIP Publishing LLC.
C1 [Kraus, D.; Falcone, R. W.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Doeppner, T.; Kritcher, A. L.; Bachmann, B.; Collins, G. W.; Hawreliak, J. A.; Landen, O. L.; Ma, T.; Le Pape, S.; Swift, D. C.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Chapman, D. A.] AWE plc, Dept Radiat Phys, Plasma Phys Grp, Reading RG7 4PR, Berks, England.
[Chapman, D. A.] Univ Warwick, Ctr Fus Space & Astrophys, Coventry CV4 7AL, W Midlands, England.
[Glenzer, S. H.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94309 USA.
[Neumayer, P.] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany.
RP Kraus, D (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
EM dominik.kraus@berkeley.edu
RI lepape, sebastien/J-3010-2015
FU Lawrence Livermore National Laboratory (LLNL) [DE-AC52-07NA27344];
Laboratory Directed Research and Development (LDRD) [11-ER-050,
13-ERD-073]; SSAA program [DE-FG52-06NA26212]
FX This work was performed with the assistance of Lawrence Livermore
National Laboratory (LLNL) under Contract No. DE-AC52-07NA27344 and
supported by Laboratory Directed Research and Development (LDRD) grants
11-ER-050 and 13-ERD-073. R.W.F. and D.K. acknowledge support from SSAA
program Contract No. DE-FG52-06NA26212.
NR 7
TC 5
Z9 5
U1 2
U2 21
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D606
DI 10.1063/1.4890263
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000023
PM 25430182
ER
PT J
AU Lanier, NE
Cowan, JS
AF Lanier, N. E.
Cowan, J. S.
TI Absolute calibration of the Agfa Structurix series films at energies
between 2.7 and 6.2 keV
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Although photo-emulsion technology is many decades old, x-ray film still remains a key asset for diagnosing hydrodynamic features in High-Energy Density (HED) experiments. For decades, the preferred option had been Kodak's direct exposure film. After its discontinuance in 2004, the push to find alternatives began. In many situations, the Agfa Structurix series offers the most favorable substitute, but being new to the HED community, its characterization was lacking. To remedy this, recent experiments, conducted at Brookhaven's National Synchrotron Light Source, provide absolute, monochromatic calibration data for the Agfa Structurix series films at K-shell backlighter energies between 2.7 and 6.2 keV. Absolute response curves are presented for Agfa D8, D7, D4, D4sc, D3, and D2. Moreover, the transmission of each film type is also measured. (C) 2014 AIP Publishing LLC.
C1 [Lanier, N. E.; Cowan, J. S.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Lanier, NE (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM nlanier@lanl.gov
FU U.S. DOE [DE-AC52-06NA25396]
FX The authors are grateful for the valuable support of Bin Dong, A. S.
Moore, Ken Moy, and J. Fernandez. This work was conducted for the U.S.
DOE Contract No. DE-AC52-06NA25396.
NR 10
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D632
DI 10.1063/1.4894838
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000049
PM 25430208
ER
PT J
AU Lasnier, CJ
Allen, SL
Ellis, RE
Fenstermacher, ME
McLean, AG
Meyer, WH
Morris, K
Seppala, LG
Crabtree, K
Van Zeeland, MA
AF Lasnier, C. J.
Allen, S. L.
Ellis, R. E.
Fenstermacher, M. E.
McLean, A. G.
Meyer, W. H.
Morris, K.
Seppala, L. G.
Crabtree, K.
Van Zeeland, M. A.
TI Wide-angle ITER-prototype tangential infrared and visible viewing system
for DIII-D
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB An imaging system with a wide-angle tangential view of the full poloidal cross-section of the tokamak in simultaneous infrared and visible light has been installed on DIII-D. The optical train includes three polished stainless steel mirrors in vacuum, which view the tokamak through an aperture in the first mirror, similar to the design concept proposed for ITER. A dichroic beam splitter outside the vacuum separates visible and infrared (IR) light. Spatial calibration is accomplished by warping a CAD-rendered image to align with landmarks in a data image. The IR camera provides scrape-off layer heat flux profile deposition features in diverted and inner-wall-limited plasmas, such as heat flux reduction in pumped radiative divertor shots. Demonstration of the system to date includes observation of fast-ion losses to the outer wall during neutral beam injection, and shows reduced peak wall heat loading with disruption mitigation by injection of a massive gas puff. (C) 2014 AIP Publishing LLC.
C1 [Lasnier, C. J.; Allen, S. L.; Ellis, R. E.; Fenstermacher, M. E.; McLean, A. G.; Meyer, W. H.; Morris, K.; Seppala, L. G.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Crabtree, K.] Univ Arizona, Coll Opt, Tucson, AZ 85721 USA.
[Van Zeeland, M. A.] Gen Atom Co, San Diego, CA 92186 USA.
RP Lasnier, CJ (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA.
EM lasnier@LLNL.gov
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; US Department of Energy, Office of Science, Office
of Fusion Energy Sciences [DE-FC02-04ER54698]
FX This work was performed under the auspices of the US Department of
Energy by Lawrence Livermore National Laboratory under Award No.
DE-AC52-07NA27344. This material is based upon work supported by the US
Department of Energy, Office of Science, Office of Fusion Energy
Sciences, using the DIII-D National Fusion Facility, a DOE Office of
Science user facility, under Award No. DE-FC02-04ER54698. DIII-D data
shown in this paper can be obtained in digital format by following the
links at https://fusion.gat.com/global/D3D_DMP.
NR 4
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U1 1
U2 15
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D855
DI 10.1063/1.4892897
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000109
PM 25430268
ER
PT J
AU Lau, C
Wilgen, JB
Caughman, JB
Hanson, GR
Hosea, J
Perkins, R
Ryan, PM
Taylor, G
AF Lau, C.
Wilgen, J. B.
Caughman, J. B.
Hanson, G. R.
Hosea, J.
Perkins, R.
Ryan, P. M.
Taylor, G.
TI Using X-mode L, R and O-mode reflectometry cutoffs to measure
scrape-off-layer density profiles for upgraded ORNL reflectometer on
NSTX-U
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID FUSION PLASMAS; WAVES
AB The pre-existing ORNL scrape-off-layer (SOL) reflectometer that operated with the X-mode R-cutoff at 6-27 GHz to measure SOL density profiles on NSTX is being upgraded to be functional at the increased magnetic fields on NSTX-U spherical tokamak. Rather than increasing the operating frequencies to measure the higher X-mode R-cutoff frequencies on NSTX-U, it will be shown that the combined use of the X-mode R, L and O-mode cutoffs at 6-27 GHz can obtain the desired SOL density profiles. The potential capabilities and obstacles of this technique to measure SOL density profiles and possibly SOL magnetic field profiles on NSTX-U will be discussed. (C) 2014 AIP Publishing LLC.
C1 [Lau, C.; Wilgen, J. B.; Caughman, J. B.; Hanson, G. R.; Ryan, P. M.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Hosea, J.; Perkins, R.; Taylor, G.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Lau, C (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM lauch@ornl.gov
RI Caughman, John/R-4889-2016
OI Caughman, John/0000-0002-0609-1164
FU U.S. Department of Energy [DE-AC05-00OR22725]; Princeton Plasma Physics
Laboratory under DOE [DE-AC02-09CH11466]; U.S. Government
[DE-AC05-00OR22725]
FX This work was supported at Oak Ridge National Laboratory, managed by
UT-Battelle, LLC, for the U.S. Department of Energy under Contract No.
DE-AC05-00OR22725, and at the Princeton Plasma Physics Laboratory under
DOE Contract No. DE-AC02-09CH11466. The submitted manuscript has been
authored by a contractor of the U.S. Government under Contract No.
DE-AC05-00OR22725.
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D815
DI 10.1063/1.4889739
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000069
PM 25430228
ER
PT J
AU Liu, D
Heidbrink, WW
Tritz, K
Zhu, YB
Roquemore, AL
Medley, SS
AF Liu, D.
Heidbrink, W. W.
Tritz, K.
Zhu, Y. B.
Roquemore, A. L.
Medley, S. S.
TI Design of solid state neutral particle analyzer array for National
Spherical Torus Experiment-Upgrade
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID NATURAL DIAMOND DETECTOR
AB A new compact, multi-channel Solid State Neutral Particle Analyzer (SSNPA) diagnostic based on silicon photodiode array has been designed and is being fabricated for the National Spherical Torus Experiment-Upgrade (NSTX-U). The SSNPA system utilizes a set of vertically stacked photodiode arrays in current mode viewing the same plasma region with different filter thickness to obtain fast temporal resolution (similar to 120 kHz bandwidth) and coarse energy information in three bands of >25 keV, >45 keV, and >65 keV. The SSNPA system consists of 15 radial sightlines that intersect existing on-axis neutral beams at major radii between 90 and 130 cm, 15 tangential sightlines that intersect new off-axis neutral beams at major radii between 120 and 145 cm. These two subsystems aim at separating the response of passing and trapped fast ions. In addition, one photodiode array whose viewing area does not intersect any neutral beams is used to monitor passive signals produced by fast ions that charge exchange with background neutrals. (C) 2014 AIP Publishing LLC.
C1 [Liu, D.; Heidbrink, W. W.; Zhu, Y. B.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
[Tritz, K.] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
[Roquemore, A. L.; Medley, S. S.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Liu, D (reprint author), Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
EM deyongl@uci.edu
RI Liu, Deyong/Q-2797-2015
OI Liu, Deyong/0000-0001-9174-7078
FU U.S. DOE [DE-AC02-09CH11466, DE-FG02-06ER54867, DE-FG03-02ER54681]
FX The authors would like to thank A. Bortolon, D. S. Darrow, V. A.
Soukhanovskii, and M. Podesta for helpful discussions and T. Kozub, L.
Morris, and S. Z. Jurczynski for technical support. This work is
supported by U.S. DOE under Grant Nos. DE-AC02-09CH11466,
DE-FG02-06ER54867, and DE-FG03-02ER54681.
NR 21
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E105
DI 10.1063/1.4889913
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000125
PM 25430284
ER
PT J
AU Liu, JX
Milbourne, T
Bitter, M
Delgado-Aparicio, L
Dominguez, A
Efthimion, PC
Hill, KW
Kramer, GJ
Kung, C
Kubota, S
Kasparek, W
Lu, J
Pablant, NA
Park, H
Tobias, B
AF Liu, J. X.
Milbourne, T.
Bitter, M.
Delgado-Aparicio, L.
Dominguez, A.
Efthimion, P. C.
Hill, K. W.
Kramer, G. J.
Kung, C.
Kubota, S.
Kasparek, W.
Lu, J.
Pablant, N. A.
Park, H.
Tobias, B.
TI Alternative optical concept for electron cyclotron emission imaging
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB The implementation of advanced electron cyclotron emission imaging (ECEI) systems on tokamak experiments has revolutionized the diagnosis of magnetohydrodynamic (MHD) activities and improved our understanding of instabilities, which lead to disruptions. It is therefore desirable to have an ECEI system on the ITER tokamak. However, the large size of optical components in presently used ECEI systems have, up to now, precluded the implementation of an ECEI system on ITER. This paper describes a new optical ECEI concept that employs a single spherical mirror as the only optical component and exploits the astigmatism of such a mirror to produce an image with one-dimensional spatial resolution on the detector. Since this alternative approach would only require a thin slit as the viewing port to the plasma, it would make the implementation of an ECEI system on ITER feasible. The results obtained from proof-of-principle experiments with a 125 GHz microwave system are presented. (C) 2014 AIP Publishing LLC.
C1 [Liu, J. X.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Milbourne, T.] Coll William & Mary, Dept Phys, Williamsburg, VA 23185 USA.
[Bitter, M.; Delgado-Aparicio, L.; Dominguez, A.; Efthimion, P. C.; Hill, K. W.; Kramer, G. J.; Kung, C.; Pablant, N. A.; Tobias, B.] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA.
[Kubota, S.] Univ Calif Los Angeles, Dept Phys, Los Angeles, CA 90095 USA.
[Kasparek, W.] Univ Stuttgart, Dept Elect Engn, D-70174 Stuttgart, Germany.
[Lu, J.] Chongqing Univ, Dept Phys, Chongqing 400044, Peoples R China.
[Park, H.] Ulsan Natl Inst Sci & Technol, Ulsan 689798, South Korea.
RP Liu, JX (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
EM jsliu9@berkeley.edu
FU US Department of Energy [DE-AC02-09CH-11466]; Korean NRF [20120005920]
FX We gratefully acknowledge the support of this work by the US Department
of Energy Contract No. DE-AC02-09CH-11466 and Korean NRF Contract No.
20120005920.
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U1 0
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D802
DI 10.1063/1.4884902
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000056
PM 25430215
ER
PT J
AU Lu, J
Bitter, M
Hill, KW
Delgado-Aparicio, LF
Efthimion, PC
Pablant, NA
Beiersdorfer, P
Caughey, TA
Brunner, J
AF Lu, J.
Bitter, M.
Hill, K. W.
Delgado-Aparicio, L. F.
Efthimion, P. C.
Pablant, N. A.
Beiersdorfer, P.
Caughey, T. A.
Brunner, J.
TI X-ray tests of a two-dimensional stigmatic imaging scheme with variable
magnifications
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID SPHERICAL CRYSTAL; BENT CRYSTALS; PLASMA; MICROSCOPE
AB A two-dimensional stigmatic x-ray imaging scheme, consisting of two spherically bent crystals, one concave and one convex, was recently proposed [M. Bitter et al., Rev. Sci. Instrum. 83, 10E527 (2012)]. The Bragg angles and the radii of curvature of the two crystals of this imaging scheme are matched to eliminate the astigmatism and to satisfy the Bragg condition across both crystal surfaces for a given x-ray energy. In this paper, we consider more general configurations of this imaging scheme, which allow us to vary the magnification for a given pair of crystals and x-ray energy. The stigmatic imaging scheme has been validated for the first time by imaging x-rays generated by a micro-focus x-ray source with source size of 8.4 mu m validated by knife-edge measurements. Results are presented from imaging the tungsten L alpha 1 emission at 8.3976 keV, using a convex Si-422 crystal and a concave Si-533 crystal with 2d-spacings of 2.21707 angstrom and 1.65635 angstrom and radii of curvature of 500 +/- 1 mm and 823 +/- 1 mm, respectively, showing a spatial resolution of 54.9 mu m. This imaging scheme is expected to be of interest for the two-dimensional imaging of laser produced plasmas. (C) 2014 AIP Publishing LLC.
C1 [Lu, J.] Chongqing Univ, Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400030, Peoples R China.
[Bitter, M.; Hill, K. W.; Delgado-Aparicio, L. F.; Efthimion, P. C.; Pablant, N. A.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Beiersdorfer, P.] Lawrence Livermore Natl Lab, Dept Phys, Livermore, CA 94550 USA.
[Caughey, T. A.; Brunner, J.] Inrad Opt, Northvale, NJ 07647 USA.
RP Lu, J (reprint author), Chongqing Univ, Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400030, Peoples R China.
EM jlu@pppl.gov
FU (U.S.) Department of Energy (DOE) by Princeton Plasma Physics Laboratory
(PPPL) [DE-AC02-09CH-11466]; (U.S.) Department of Energy (DOE) by
Lawrence Livermore National Laboratory (LLNL) [DE-AC52-07NA-27344]
FX This work was performed under the auspices of the (U.S.) Department of
Energy (DOE) by Princeton Plasma Physics Laboratory (PPPL) under
Contract No. DE-AC02-09CH-11466 and Lawrence Livermore National
Laboratory (LLNL) under Contract No. DE-AC52-07NA-27344.
NR 16
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U1 1
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D604
DI 10.1063/1.4890248
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000021
PM 25430180
ER
PT J
AU Lucia, M
Kaita, R
Majeski, R
Bedoya, F
Allain, JP
Boyle, DP
Schmitt, JC
St Onge, DA
AF Lucia, M.
Kaita, R.
Majeski, R.
Bedoya, F.
Allain, J. P.
Boyle, D. P.
Schmitt, J. C.
St Onge, D. A.
TI Development progress of the Materials Analysis and Particle Probe
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB The Materials Analysis and Particle Probe (MAPP) is a compact in vacuo surface science diagnostic, designed to provide in situ surface characterization of plasma facing components in a tokamak environment. MAPP has been implemented for operation on the Lithium Tokamak Experiment at Princeton Plasma Physics Laboratory (PPPL), where all control and analysis systems are currently under development for full remote operation. Control systems include vacuum management, instrument power, and translational/rotational probe drive. Analysis systems include onboard Langmuir probes and all components required for x-ray photoelectron spectroscopy, low-energy ion scattering spectroscopy, direct recoil spectroscopy, and thermal desorption spectroscopy surface analysis techniques. (C) 2014 AIP Publishing LLC.
C1 [Lucia, M.; Kaita, R.; Majeski, R.; Boyle, D. P.; Schmitt, J. C.; St Onge, D. A.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Bedoya, F.; Allain, J. P.] Univ Illinois, Dept Nucl Plasma & Radiol Engn, Urbana, IL 61801 USA.
RP Lucia, M (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM mlucia@pppl.gov
OI Allain, Jean Paul/0000-0003-1348-262X; Boyle, Dennis/0000-0001-8091-8169
FU U.S. DOE [DE-AC02-09CH11466, DE-AC52-07NA27344, DE-SC0010717]; NSF
[DGE-0646086]
FX This work is supported by U.S. DOE Contract Nos. DE-AC02-09CH11466,
DE-AC52-07NA27344, and DE-SC0010717. This material is based upon work
supported by the NSF Graduate Research Fellowship under Grant No.
DGE-0646086.
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U1 0
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D835
DI 10.1063/1.4890257
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000089
PM 25430248
ER
PT J
AU Lyu, B
Wang, FD
Pan, XY
Chen, J
Fu, J
Li, YY
Bitter, M
Hill, KW
Delgado-Aparicio, LF
Pablant, N
Lee, SG
Shi, YJ
Ye, MY
Wan, BN
AF Lyu, B.
Wang, F. D.
Pan, X. Y.
Chen, J.
Fu, J.
Li, Y. Y.
Bitter, M.
Hill, K. W.
Delgado-Aparicio, L. F.
Pablant, N.
Lee, S. G.
Shi, Y. J.
Ye, M. Y.
Wan, B. N.
TI Upgrades of imaging x-ray crystal spectrometers for high-resolution and
high-temperature plasma diagnostics on EAST
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Upgrade of the imaging X-ray crystal spectrometers continues in order to fulfill the high-performance diagnostics requirements on EAST. For the tangential spectrometer, a new large pixelated two-dimensional detector was deployed on tokamaks for time-resolved X-ray imaging. This vacuum-compatible detector has an area of 83.8 x 325.3 mm(2), a framing rate over 150 Hz, and water-cooling capability for long-pulse discharges. To effectively extend the temperature limit, a double-crystal assembly was designed to replace the previous single crystals for He-like argon line measurement. The tangential spectrometer employed two crystal slices attached to a common substrate and part of He-and H-like Ar spectra could be recorded on the same detector when crystals were chosen to have similar Bragg angles. This setup cannot only extend the measurable Te up to 10 keV in the core region, but also extend the spatial coverage since He-like argon ions will be present in the outer plasma region. Similarly, crystal slices for He-like iron and argon spectra were adopted on the poloidal spectrometer. Wavelength calibration for absolute rotation velocity measurement will be studied using cadmium characteristic L-shell X-ray lines excited by plasma radiation. A Cd foil is placed before the crystal and can be inserted and retracted for in situ wavelength calibration. The Geant4 code was used to estimate X-ray fluorescence yield and optimize the thickness of the foil. (C) 2014 AIP Publishing LLC.
C1 [Lyu, B.; Wang, F. D.; Pan, X. Y.; Chen, J.; Fu, J.; Li, Y. Y.; Wan, B. N.] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China.
[Pan, X. Y.; Chen, J.; Shi, Y. J.; Ye, M. Y.; Wan, B. N.] Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Anhui, Peoples R China.
[Bitter, M.; Hill, K. W.; Delgado-Aparicio, L. F.; Pablant, N.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Lee, S. G.] Natl Fus Res Inst, Taejon 305333, South Korea.
[Shi, Y. J.] Natl Fus Res Inst, WCI Fus Theory, Taejon 305333, South Korea.
RP Lyu, B (reprint author), Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China.
EM blu@ipp.ac.cn
FU National Magnetic Confinement Fusion Science Program of China
[2011GB101004, 2013GB112004]; Natural Science Foundation of China
[11175208, 11305212]; JSPS-NRF-NSFC [11261140328]
FX This work was supported by National Magnetic Confinement Fusion Science
Program of China (2011GB101004 and 2013GB112004), Natural Science
Foundation of China (11175208 and 11305212), and JSPS-NRF-NSFC A3
Foresight Program in the field of Plasma Physics (11261140328).
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PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E406
DI 10.1063/1.4886387
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000154
PM 25430313
ER
PT J
AU MacDonald, MJ
Keiter, PA
Montgomery, DS
Biener, MM
Fein, JR
Fournier, KB
Gamboa, EJ
Klein, SR
Kuranz, CC
LeFevre, HJ
Manuel, MJE
Streit, J
Wan, WC
Drake, RP
AF MacDonald, M. J.
Keiter, P. A.
Montgomery, D. S.
Biener, M. M.
Fein, J. R.
Fournier, K. B.
Gamboa, E. J.
Klein, S. R.
Kuranz, C. C.
LeFevre, H. J.
Manuel, M. J. -E.
Streit, J.
Wan, W. C.
Drake, R. P.
TI Demonstration of x-ray fluorescence imaging of a high-energy-density
plasma
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID FACILITY
AB Experiments at the Trident Laser Facility have successfully demonstrated the use of x-ray fluorescence imaging (XRFI) to diagnose shocked carbonized resorcinol formaldehyde (CRF) foams doped with Ti. One laser beam created a shock wave in the doped foam. A second laser beam produced a flux of vanadium He-alpha x-rays, which in turn induced Ti K-shell fluorescence within the foam. Spectrally resolved 1D imaging of the x-ray fluorescence provided shock location and compression measurements. Additionally, experiments using a collimator demonstrated that one can probe specific regions within a target. These results show that XRFI is a capable alternative to path-integrated measurements for diagnosing hydrodynamic experiments at high energy density. (C) 2014 AIP Publishing LLC.
C1 [MacDonald, M. J.; Keiter, P. A.; Fein, J. R.; Gamboa, E. J.; Klein, S. R.; Kuranz, C. C.; LeFevre, H. J.; Manuel, M. J. -E.; Wan, W. C.; Drake, R. P.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
[MacDonald, M. J.; Gamboa, E. J.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
[Montgomery, D. S.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Biener, M. M.; Fournier, K. B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Streit, J.] Schafer Corp, Livermore, CA 94551 USA.
RP MacDonald, MJ (reprint author), Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
EM macdonm@umich.edu
RI Manuel, Mario/L-3213-2015; Drake, R Paul/I-9218-2012;
OI Manuel, Mario/0000-0002-5834-1161; Drake, R Paul/0000-0002-5450-9844;
MacDonald, Michael/0000-0002-6295-6978
FU NNSA-DS [DE-NA0001840]; SC-OFES Joint Program in High-Energy-Density
Laboratory Plasmas [DE-NA0001840]; DTRA [DTRA-1-10-0077]; National
Science Foundation Graduate Research Fellowship Program [2013155705]
FX The authors would like to thank the laser operations staff at the
Trident Laser Facility for a successful experimental campaign and Robb
Gillespie for machining the targets used in the experiments. This work
is funded by the NNSA-DS and SC-OFES Joint Program in
High-Energy-Density Laboratory Plasmas, Grant No. DE-NA0001840, and by
DTRA, Grant No. DTRA-1-10-0077. This material is based upon work
supported by the National Science Foundation Graduate Research
Fellowship Program under Grant No. 2013155705.
NR 8
TC 3
Z9 3
U1 3
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E602
DI 10.1063/1.4886388
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000189
PM 25430348
ER
PT J
AU Macrander, AT
Matey, JR
AF Macrander, A. T.
Matey, J. R.
TI A Change in Editorial Policy: Contributed Reviews
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
C1 [Macrander, A. T.; Matey, J. R.] Argonne Natl Lab, APS XFD, Argonne, IL 60439 USA.
RP Macrander, AT (reprint author), Argonne Natl Lab, APS XFD, 9700 S Cass Ave,Bldg 432, Argonne, IL 60439 USA.
NR 0
TC 0
Z9 0
U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 110401
DI 10.1063/1.4901097
PG 2
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000237
PM 25430088
ER
PT J
AU Magee, EW
Beiersdorfer, P
Brown, GV
Hell, N
AF Magee, E. W.
Beiersdorfer, P.
Brown, G. V.
Hell, N.
TI Rare-earth neutral metal injection into an electron beam ion trap plasma
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID EBIT DATA; SPECTROSCOPY
AB We have designed and implemented a neutral metal vapor injector on the SuperEBIT high-energy electron beam ion trap at the Lawrence Livermore National Laboratory. A horizontally directed vapor of a europium metal is created using a thermal evaporation technique. The metal vapor is then spatially collimated prior to injection into the trap. The source's form and quantity constraints are significantly reduced making plasmas out of metal with vapor pressures <= 10(-7) Torr at >= 1000 degrees C more obtainable. A long pulsed or constant feed metal vapor injection method adds new flexibility by varying the timing of injection and rate of material being introduced into the trap. (C) 2014 AIP Publishing LLC.
C1 [Magee, E. W.; Beiersdorfer, P.; Brown, G. V.; Hell, N.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Hell, N.] Univ Erlangen Nurnberg, Dr Remeis Sternwarte, D-96049 Bamberg, Germany.
[Hell, N.] Univ Erlangen Nurnberg, ECAP, D-96049 Bamberg, Germany.
RP Magee, EW (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM magee1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Bundesministerium fur Wirtschaft und Technologie
under DLR [50 OR 1113]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344.; N.H. received additional support from the
Bundesministerium fur Wirtschaft und Technologie under DLR grant 50 OR
1113.
NR 15
TC 2
Z9 2
U1 0
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E820
DI 10.1063/1.4892899
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000226
PM 25430385
ER
PT J
AU Marrs, RE
Brown, GV
Emig, JA
Heeter, RF
AF Marrs, R. E.
Brown, G. V.
Emig, J. A.
Heeter, R. F.
TI System for calibrating the energy-dependent response of an elliptical
Bragg-crystal spectrometer
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID FRAMING CAMERAS; RAY
AB A multipurpose spectrometer (MSPEC) with elliptical crystals is in routine use to obtain x-ray spectra from laser produced plasmas in the energy range 1.0-9.0 keV. Knowledge of the energy-dependent response of the spectrometer is required for an accurate comparison of the intensities of x-ray lines of different energy. The energy-dependent response of the MSPEC has now been derived from the spectrometer geometry and calibration information on the response of its components, including two different types of detectors. Measurements of the spectrometer response with a laboratory x-ray source are used to test the calculated response and provide information on crystal reflectivity and uniformity. (C) 2014 AIP Publishing LLC.
C1 [Marrs, R. E.; Brown, G. V.; Emig, J. A.; Heeter, R. F.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Heeter, RF (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM heeter1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344.
NR 17
TC 4
Z9 4
U1 0
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D626
DI 10.1063/1.4892552
PG 5
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000043
PM 25430202
ER
PT J
AU Masters, ND
Fisher, A
Kalantar, D
Prasad, R
Stolken, JS
Wlodarczyk, C
AF Masters, N. D.
Fisher, A.
Kalantar, D.
Prasad, R.
Stoelken, J. S.
Wlodarczyk, C.
TI Evaluation of observed blast loading effects on NIF x-ray diagnostic
collimators
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB We present the "debris wind" models used to estimate the impulsive load to which x-ray diagnostics and other structures are subject during National Ignition Facility experiments. These models are used as part of the engineering design process. Isotropic models, based on simulations or simplified "expanding shell" models, are augmented by debris wind multipliers to account for directional anisotropy. We present improvements to these multipliers based on measurements of the permanent deflections of diagnostic components: 4x for the polar direction and 2x within the equatorial plane-the latter relaxing the previous heuristic debris wind multiplier. (C) 2014 AIP Publishing LLC.
C1 [Masters, N. D.; Fisher, A.; Kalantar, D.; Prasad, R.; Stoelken, J. S.; Wlodarczyk, C.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Masters, ND (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave,POB 808,L-422, Livermore, CA 94550 USA.
EM masters6@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344.
NR 5
TC 1
Z9 1
U1 0
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D628
DI 10.1063/1.4894828
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000045
PM 25430204
ER
PT J
AU McLean, AG
Soukhanovskii, VA
Allen, SL
Carlstrom, TN
LeBlanc, BP
Ono, M
Stratton, BC
AF McLean, A. G.
Soukhanovskii, V. A.
Allen, S. L.
Carlstrom, T. N.
LeBlanc, B. P.
Ono, M.
Stratton, B. C.
TI Conceptual design of a divertor Thomson scattering diagnostic for NSTX-U
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID DIII-D; OPERATION; SYSTEM; ASDEX
AB A conceptual design for a divertor Thomson scattering (DTS) diagnostic has been developed for the NSTX-U device to operate in parallel with the existing multipoint Thomson scattering system. Higher projected peak heat flux in NSTX-U will necessitate application of advanced magnetics geometries and divertor detachment. Interpretation and modeling of these divertor scenarios will depend heavily on local measurement of electron temperature, T-e, and density, n(e), which DTS provides in a passive manner. The DTS design for NSTX-U adopts major elements from the successful DIII-D DTS system including 7-channel polychromators measuring T-e to 0.5 eV. If implemented on NSTX-U, the divertor TS system would provide an invaluable diagnostic for the boundary program to characterize the edge plasma. (C) 2014 AIP Publishing LLC.
C1 [McLean, A. G.; Soukhanovskii, V. A.; Allen, S. L.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Carlstrom, T. N.] Gen Atom Co, San Diego, CA 92186 USA.
[LeBlanc, B. P.; Ono, M.; Stratton, B. C.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP McLean, AG (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94550 USA.
EM mclean@fusion.gat.com
FU U.S. Department of Energy (US DOE) by LLNL [DE-AC52-07N27344]; US DOE
[DE-AC02-09CH11466, DE-FC02-04ER54698]
FX This work was supported in part under the auspices of the U.S.
Department of Energy (US DOE) by LLNL under DE-AC52-07N27344 and by the
US DOE under DE-AC02-09CH11466, and DE-FC02-04ER54698.
NR 24
TC 2
Z9 2
U1 0
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E825
DI 10.1063/1.4894001
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000231
PM 25430390
ER
PT J
AU Menmuir, S
Giroud, C
Biewer, TM
Coffey, IH
Delabie, E
Hawkes, NC
Sertoli, M
AF Menmuir, S.
Giroud, C.
Biewer, T. M.
Coffey, I. H.
Delabie, E.
Hawkes, N. C.
Sertoli, M.
CA JET EFDA Contributors
TI Carbon charge exchange analysis in the ITER-like wall environment
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Charge exchange spectroscopy has long been a key diagnostic tool for fusion plasmas and is well developed in devices with Carbon Plasma-Facing Components. Operation with the ITER-like wall at JET has resulted in changes to the spectrum in the region of the Carbon charge exchange line at 529.06 nm and demonstrates the need to revise the core charge exchange analysis for this line. An investigation has been made of this spectral region in different plasma conditions and the revised description of the spectral lines to be included in the analysis is presented.
C1 Culham Sci Ctr, JET EFDA, Abingdon OX14 3DB, Oxon, England.
[Menmuir, S.] KTH Royal Inst Technol, Dept Fus Plasma Phys, Assoc EURATOM VR, Stockholm, Sweden.
[Giroud, C.; Hawkes, N. C.] Culham Sci Ctr, CCFE, Abingdon OX14 3DB, Oxon, England.
[Biewer, T. M.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Coffey, I. H.] Queens Univ Belfast, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland.
[Delabie, E.] EURATOM, Nieuwegein, Netherlands.
[Sertoli, M.] Max Planck Inst Plasma Phys, EURATOM Assoc, D-85748 Garching, Germany.
RP Menmuir, S (reprint author), KTH Royal Inst Technol, Dept Fus Plasma Phys, Assoc EURATOM VR, Stockholm, Sweden.
EM Sheena.Menmuir@jet.efda.org
FU EURATOM
FX This work was supported by EURATOM and carried out within the framework
of the European Fusion Development Agreement. The views and opinions
expressed herein do not necessarily reflect those of the European
Commission.
NR 11
TC 2
Z9 2
U1 2
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E412
DI 10.1063/1.4890118
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000160
PM 25430319
ER
PT J
AU Merrill, FE
Danly, CR
Izumi, N
Jedlovec, D
Fittinghoff, DN
Grim, GP
Pak, A
Park, HS
Volegov, PL
Wilde, CH
AF Merrill, F. E.
Danly, C. R.
Izumi, N.
Jedlovec, D.
Fittinghoff, D. N.
Grim, G. P.
Pak, A.
Park, H. -S.
Volegov, P. L.
Wilde, C. H.
TI A concept to collect neutron and x-ray images on the same line of sight
at NIF
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Neutron and x-ray images are collected at the National Ignition Facility (NIF) to measure the size and shape of inertial confinement fusion implosions. The x-ray images provide a measure of the size and shape of the hot region of the deuterium-tritium fuel while the neutron images provide a measure of the size and shape of the burning plasma. Although these two types of images are collected simultaneously, they are not collected along the same line of sight (LOS). One 14 MeV neutron image is collected on the NIF equator, and two x-ray images are collected along the polar axis and nearly perpendicular to the neutron imaging line of sight on the equator. Both measurements use pinhole apertures to form the images, but existing x-ray imaging provides time-resolved measurements while the neutron images are time-integrated. Detailed comparisons of the x-ray and neutron images can provide information on the fuel assembly, but these studies have been limited because the implosions are not azimuthally symmetric and the images are collected along different LOS. We have developed a conceptual design of a time-integrated x-ray imaging system that could be added to the existing neutron imaging LOS. This new system would allow these detailed studies, providing important information on the fuel assembly of future implosions. Here we present this conceptual design and the expected performance characteristics. (C) 2014 AIP Publishing LLC.
C1 [Merrill, F. E.; Danly, C. R.; Grim, G. P.; Volegov, P. L.; Wilde, C. H.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Izumi, N.; Jedlovec, D.; Fittinghoff, D. N.; Pak, A.; Park, H. -S.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Merrill, FE (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM fmerrill@lanl.gov
RI IZUMI, Nobuhiko/J-8487-2016
OI IZUMI, Nobuhiko/0000-0003-1114-597X
NR 14
TC 3
Z9 3
U1 0
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E614
DI 10.1063/1.4891101
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000201
PM 25430360
ER
PT J
AU Moody, JD
Clancy, TJ
Frieders, G
Celliers, PM
Ralph, J
Turnbull, DP
AF Moody, J. D.
Clancy, T. J.
Frieders, G.
Celliers, P. M.
Ralph, J.
Turnbull, D. P.
TI Hohlraum glint and laser pre-pulse detector for NIF experiments using
velocity interferometer system for any reflector
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID INERTIAL CONFINEMENT FUSION; NATIONAL-IGNITION-FACILITY; PHYSICS BASIS;
DRIVE; PERFORMANCE
AB Laser pre-pulse and early-time laser reflection from the hohlraum wall onto the capsule (termed "glint") can cause capsule imprint and unwanted early-time shocks on indirect drive implosion experiments. In a minor modification to the existing velocity interferometer system for any reflector diagnostic on NIF a fast-response vacuum photodiode was added to detect this light. The measurements show evidence of laser pre-pulse and possible light reflection off the hohlraum wall and onto the capsule. (C) 2014 AIP Publishing LLC.
C1 [Moody, J. D.; Clancy, T. J.; Frieders, G.; Celliers, P. M.; Ralph, J.; Turnbull, D. P.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Moody, JD (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM moody4@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344.
NR 9
TC 0
Z9 1
U1 1
U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E608
DI 10.1063/1.4887155
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000195
PM 25430354
ER
PT J
AU Mueller, D
Roquemore, AL
Jaworski, M
Skinner, CH
Miller, J
Creely, A
Raman, P
Ruzic, D
AF Mueller, D.
Roquemore, A. L.
Jaworski, M.
Skinner, C. H.
Miller, J.
Creely, A.
Raman, P.
Ruzic, D.
TI In situ measurement of low-Z material coating thickness on high Z
substrate for tokamaks
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Rutherford backscattering of energetic particles can be used to determine the thickness of a coating of a low-Z material over a heavier substrate. Simulations indicate that 5 MeV alpha particles from an Am-241 source can be used to measure the thickness of a Li coating on Mo tiles between 0.5 and 15 mu m thick. Using a 0.1 mCi source, a thickness measurement can be accomplished in 2 h of counting. This technique could be used to measure any thin, low-Z material coating (up to 1 mg/cm(2) thick) on a high-Z substrate, such as Be on W, B on Mo, or Li on Mo. By inserting a source and detector on a moveable probe, this technique could be used to provide an in situ measurement of the thickness of Li coating on NSTX-U Mo tiles. A test stand with an alpha source and an annular solid-state detector was used to investigate the measurable range of low-Z material thicknesses on Mo tiles. (C) 2014 AIP Publishing LLC.
C1 [Mueller, D.; Roquemore, A. L.; Jaworski, M.; Skinner, C. H.; Miller, J.; Creely, A.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Raman, P.; Ruzic, D.] Univ Illinois, Ctr Plasma Mat Interact, Dept Nucl Plasma & Radiol Engn, Urbana, IL 61801 USA.
RP Mueller, D (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM dmueller@pppl.gov
FU U.S.D.O.E. [DE-AC02-09CH11466]
FX This work was supported by U.S.D.O.E. under Contract No.
DE-AC02-09CH11466.
NR 8
TC 1
Z9 1
U1 0
U2 8
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E821
DI 10.1063/1.4893425
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000227
PM 25430386
ER
PT J
AU Muscatello, CM
Domier, CW
Hu, X
Kramer, GJ
Luhmann, NC
Ren, X
Riemenschneider, P
Spear, A
Tobias, BJ
Valeo, E
Yu, L
AF Muscatello, C. M.
Domier, C. W.
Hu, X.
Kramer, G. J.
Luhmann, N. C., Jr.
Ren, X.
Riemenschneider, P.
Spear, A.
Tobias, B. J.
Valeo, E.
Yu, L.
TI Technical overview of the millimeter-wave imaging reflectometer on the
DIII-D tokamak
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID FLUCTUATION MEASUREMENTS; MICROWAVE REFLECTOMETRY; TURBULENT
FLUCTUATIONS; PLASMAS
AB The two-dimensional mm-wave imaging reflectometer (MIR) on DIII-D is a multi-faceted device for diagnosing electron density fluctuations in fusion plasmas. Its multi-channel, multi-frequency capabilities and high sensitivity permit visualization and quantitative diagnosis of density perturbations, including correlation length, wavenumber, mode propagation velocity, and dispersion. The two-dimensional capabilities of MIR are made possible with 12 vertically separated sightlines and four-frequency operation (corresponding to four radial channels). The 48-channel DIII-D MIR system has a tunable source that can be stepped in 500 mu s increments over a range of 56 to 74 GHz. An innovative optical design keeps both on-axis and off-axis channels focused at the cutoff surface, permitting imaging over an extended poloidal region. The integrity of the MIR optical design is confirmed by comparing Gaussian beam calculations to laboratory measurements of the transmitter beam pattern and receiver antenna patterns. Measurements are presented during the density ramp of a plasma discharge to demonstrate unfocused and focused MIR signals. (C) 2014 AIP Publishing LLC.
C1 [Muscatello, C. M.; Domier, C. W.; Hu, X.; Luhmann, N. C., Jr.; Ren, X.; Riemenschneider, P.; Spear, A.; Valeo, E.; Yu, L.] Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA.
[Kramer, G. J.; Tobias, B. J.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Muscatello, CM (reprint author), Univ Calif Davis, Dept Elect & Comp Engn, 347 Mem Un, Davis, CA 95616 USA.
EM cmuscate@ucdavis.edu
FU US Department of Energy [DE-FG-02-99ER54531, DE-AC02-09CH11466,
DE-FC02-04ER54698]
FX This work is supported by US Department of Energy under
DE-FG-02-99ER54531, DE-AC02-09CH11466, and DE-FC02-04ER54698. We extend
a special appreciation to M. Banducci for his involvement with a number
of hardware aspects of the MIR instrument. We are grateful for the
tireless efforts of the DIII-D team, particularly R. Boivin and J.
Kulchar, who made special accommodations and sacrifices for the
installation of MIR. We also thank M. Kriete who assisted with the
installation of MIR at DIII-D as a National Undergraduate Fellow of the
DOE OFES. The data shown in this paper can be obtained in digital format
by following the links at https://fusion.gat.com/global/D3D_DMP.
NR 12
TC 12
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U1 2
U2 15
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D702
DI 10.1063/1.4889735
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000053
PM 25430212
ER
PT J
AU Nagayama, T
Bailey, JE
Loisel, G
Rochau, GA
Falcon, RE
AF Nagayama, T.
Bailey, J. E.
Loisel, G.
Rochau, G. A.
Falcon, R. E.
TI Parallax diagnostics of radiation source geometric dilution for iron
opacity experiments
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Experimental tests are in progress to evaluate the accuracy of the modeled iron opacity at solar interior conditions [J. E. Bailey et al., Phys. Plasmas 16, 058101 (2009)]. The iron sample is placed on top of the Sandia National Laboratories z-pinch dynamic hohlraum (ZPDH) radiation source. The samples are heated to 150-200 eV electron temperatures and 7x 10(21)-4x 10(22) cm(-3) electron densities by the ZPDH radiation and backlit at its stagnation [T. Nagayama et al., Phys. Plasmas 21, 056502 (2014)]. The backlighter attenuated by the heated sample plasma is measured by four spectrometers along +/- 9 degrees with respect to the z-pinch axis to infer the sample iron opacity. Here, we describe measurements of the source-to-sample distance that exploit the parallax of spectrometers that view the half-moon-shaped sample from +/- 9 degrees. The measured sample temperature decreases with increased source-to-sample distance. This distance must be taken into account for understanding the sample heating. (C) 2014 AIP Publishing LLC.
C1 [Nagayama, T.; Bailey, J. E.; Loisel, G.; Rochau, G. A.; Falcon, R. E.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Nagayama, T (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
FU (U.S.) Department of Energy (DOE) [DE-AC04-94AL85000]
FX Sandia is a multiprogram laboratory operated by Sandia Corporation, a
Lockheed Martin Company, for the (U.S.) Department of Energy (DOE) under
Contract No. DE-AC04-94AL85000.
NR 9
TC 4
Z9 4
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D603
DI 10.1063/1.4889776
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000020
PM 25430179
ER
PT J
AU Nagel, SR
Hilsabeck, TJ
Bell, PM
Bradley, DK
Ayers, MJ
Piston, K
Felker, B
Kilkenny, JD
Chung, T
Sammuli, B
Hares, JD
Dymoke-Bradshaw, AKL
AF Nagel, S. R.
Hilsabeck, T. J.
Bell, P. M.
Bradley, D. K.
Ayers, M. J.
Piston, K.
Felker, B.
Kilkenny, J. D.
Chung, T.
Sammuli, B.
Hares, J. D.
Dymoke-Bradshaw, A. K. L.
TI Investigating high speed phenomena in laser plasma interactions using
dilation x-ray imager
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB The DIlation X-ray Imager (DIXI) is a new, high-speed x-ray framing camera at the National Ignition Facility (NIF) sensitive to x-rays in the range of approximate to 2-17 keV. DIXI uses the pulse-dilation technique to achieve a temporal resolution of less than 10 ps, a approximate to 10x improvement over conventional framing cameras currently employed on the NIF (approximate to 100 ps resolution), and otherwise only attainable with 1D streaked imaging. The pulse-dilation technique utilizes a voltage ramp to impart a velocity gradient on the signal-bearing electrons. The temporal response, spatial resolution, and x-ray sensitivity of DIXI are characterized with a short x-ray impulse generated using the COMET laser facility at Lawrence Livermore National Laboratory. At the NIF a pinhole array at 10 cm from target chamber center (tcc) projects images onto the photocathode situated outside the NIF chamber wall with a magnification of approximate to 64x. DIXI will provide important capabilities for warm-dense-matter physics, high-energy-density science, and inertial confinement fusion, adding important capabilities to temporally resolve hot-spot formation, x-ray emission, fuel motion, and mix levels in the hot-spot at neutron yields of up to 10(17). We present characterization data as well as first results on electron-transport phenomena in buried-layer foil experiments. (C) 2014 AIP Publishing LLC.
C1 [Nagel, S. R.; Bell, P. M.; Bradley, D. K.; Ayers, M. J.; Piston, K.; Felker, B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Hilsabeck, T. J.; Kilkenny, J. D.; Chung, T.; Sammuli, B.] Gen Atom Co, San Diego, CA 92186 USA.
[Hares, J. D.; Dymoke-Bradshaw, A. K. L.] Kentech Instruments Ltd, Wallingford OX10, Oxon, England.
RP Nagel, SR (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM nagel7@llnl.gov
FU U.S. Department of Energy, National Nuclear Security Administration
[DE-AC52-07NA27344]; United States Government [LLNL-PROC-655361]
FX The authors would like to acknowledge the support of the staff at the
Jupiter Laser Facility and thank the Shape Group for providing the
modeling results. Lawrence Livermore National Laboratory is operated by
Lawrence Livermore National Security, LLC, for the U.S. Department of
Energy, National Nuclear Security Administration under Contract No.
DE-AC52-07NA27344. Accordingly, 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 article or allow others to do so, for United States
Government purposes. (LLNL-PROC-655361.)
NR 12
TC 6
Z9 11
U1 1
U2 32
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E504
DI 10.1063/1.4890396
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000187
PM 25430346
ER
PT J
AU Oertel, JA
Archuleta, TN
AF Oertel, J. A.
Archuleta, T. N.
TI A novel solution to the gated x-ray detector gain droop problem
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Microchannel plate (MCP), microstrip transmission line based, gated x-ray detectors used at the premier ICF laser facilities have a drop in gain as a function of mircostrip length that can be greater than 50% over 40 mm. These losses are due to ohmic losses in a microstrip coating that is less than the optimum electrical skin depth. The electrical skin depth for a copper transmission line at 3 GHz is 1.2 mu m while the standard microstrip coating thickness is roughly half a single skin depth. Simply increasing the copper coating thickness would begin filling the MCP pores and limit the number of secondary electrons created in the MCP. The current coating thickness represents a compromise between gain and ohmic loss. We suggest a novel solution to the loss problem by overcoating the copper transmission line with five electrical skin depths (similar to 6 mu m) of Beryllium. Beryllium is reasonably transparent to x-rays above 800 eV and would improve the carrier current on the transmission line. The net result should be an optically flat photocathode response with almost no measurable loss in voltage along the transmission line. (C) 2014 AIP Publishing LLC.
C1 [Oertel, J. A.; Archuleta, T. N.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Oertel, JA (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM Oertel@lanl.gov
FU (US) Department of Energy by Los Alamos National Laboratory
[DE-AC52-06NA25396]
FX Special thanks to the dedicated staff at LANL's Diagnostic and Systems
Engineering Team who helped support these measurements. This work was
conducted under the auspices of the (US) Department of Energy by Los
Alamos National Laboratory under Contract No. DE-AC52-06NA25396.
NR 10
TC 3
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U1 2
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D622
DI 10.1063/1.4893006
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000039
PM 25430198
ER
PT J
AU Opachich, YP
Ross, PW
MacPhee, AG
Hilsabeck, TJ
Nagel, SR
Huffman, E
Bell, PM
Bradley, DK
Koch, JA
Landen, OL
AF Opachich, Y. P.
Ross, P. W.
MacPhee, A. G.
Hilsabeck, T. J.
Nagel, S. R.
Huffman, E.
Bell, P. M.
Bradley, D. K.
Koch, J. A.
Landen, O. L.
TI High quantum efficiency photocathode simulation for the investigation of
novel structured designs
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID RAY PHOTO-CATHODES; WAVELENGTH BAND 1-300; INSULATORS; REGION; MODELS
AB A computer model in CST Studio Suite has been developed to evaluate several novel geometrically enhanced photocathode designs. This work was aimed at identifying a structure that would increase the total electron yield by a factor of two or greater in the 1-30 keV range. The modeling software was used to simulate the electric field and generate particle tracking for several potential structures. The final photocathode structure has been tailored to meet a set of detector performance requirements, namely, a spatial resolution of <40 mu m and a temporal spread of 1-10 ps. We present the details of the geometrically enhanced photocathode model and resulting static field and electron emission characteristics. (C) 2014 AIP Publishing LLC.
C1 [Opachich, Y. P.; Ross, P. W.; Huffman, E.; Koch, J. A.] Natl Secur Technol LLC, Livermore, CA 94550 USA.
[MacPhee, A. G.; Nagel, S. R.; Bell, P. M.; Bradley, D. K.; Landen, O. L.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Hilsabeck, T. J.] Gen Atom Co, San Diego, CA 92121 USA.
RP Opachich, YP (reprint author), Natl Secur Technol LLC, Livermore, CA 94550 USA.
EM opachiyp@nv.doe.gov
FU National Security Technologies, LLC [DE-AC52-06NA25946]; U.S. Department
of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
FX This paper has been authored by the National Security Technologies, LLC,
under Contract No. DE-AC52-06NA25946 with the U.S. Department of Energy.
The United States Government retains and the publisher, by accepting the
article for publication, acknowledges that the United States Government
retains a nonexclusive, paid-up, irrevocable, world-wide license to
publish or reproduce the published form of this paper, or allow others
to do so, for United States Government purposes, DOE/NV/25946-2099. This
work was done under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344.
NR 16
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U1 2
U2 11
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D625
DI 10.1063/1.4893942
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000042
PM 25430201
ER
PT J
AU Pablant, NA
Bell, RE
Bitter, M
Delgado-Aparicio, L
Hill, KW
Lazerson, S
Morita, S
AF Pablant, N. A.
Bell, R. E.
Bitter, M.
Delgado-Aparicio, L.
Hill, K. W.
Lazerson, S.
Morita, S.
TI Tomographic inversion techniques incorporating physical constraints for
line integrated spectroscopy in stellarators and tokamaks
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID PLASMA
AB Accurate tomographic inversion is important for diagnostic systems on stellarators and tokamaks which rely on measurements of line integrated emission spectra. A tomographic inversion technique based on spline optimization with enforcement of constraints is described that can produce unique and physically relevant inversions even in situations with noisy or incomplete input data. This inversion technique is routinely used in the analysis of data from the x-ray imaging crystal spectrometer (XICS) installed at the Large Helical Device. The XICS diagnostic records a 1D image of line integrated emission spectra from impurities in the plasma. Through the use of Doppler spectroscopy and tomographic inversion, XICS can provide profile measurements of the local emissivity, temperature, and plasma flow. Tomographic inversion requires the assumption that these measured quantities are flux surface functions, and that a known plasma equilibrium reconstruction is available. In the case of low signal levels or partial spatial coverage of the plasma cross-section, standard inversion techniques utilizing matrix inversion and linear-regularization often cannot produce unique and physically relevant solutions. The addition of physical constraints, such as parameter ranges, derivative directions, and boundary conditions, allow for unique solutions to be reliably found. The constrained inversion technique described here utilizes a modified Levenberg-Marquardt optimization scheme, which introduces a condition avoidance mechanism by selective reduction of search directions. The constrained inversion technique also allows for the addition of more complicated parameter dependencies, for example, geometrical dependence of the emissivity due to asymmetries in the plasma density arising from fast rotation. The accuracy of this constrained inversion technique is discussed, with an emphasis on its applicability to systems with limited plasma coverage. (C) 2014 AIP Publishing LLC.
C1 [Pablant, N. A.; Bell, R. E.; Bitter, M.; Delgado-Aparicio, L.; Hill, K. W.; Lazerson, S.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Morita, S.] Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan.
RP Pablant, NA (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
FU (U.S.) Department of Energy (DOE) [DE-AC02-09CH11466]; Princeton
University
FX The authors would like to thank M. Reinke for many discussions on
inversion methods and M. Goto, T. Oishi, and the LHD experiment group
for their support in the installation of the XICS diagnostic and LHD
operation. Research supported by the (U.S.) Department of Energy (DOE)
under Contract No. DE-AC02-09CH11466 with Princeton University.
NR 7
TC 3
Z9 3
U1 2
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E424
DI 10.1063/1.4891977
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000172
PM 25430331
ER
PT J
AU Pak, A
Field, JE
Benedetti, LR
Caggiano, J
Hatarik, R
Izumi, N
Khan, SF
Knauer, J
Ma, T
Spears, BK
Town, RPJ
Bradley, DK
AF Pak, A.
Field, J. E.
Benedetti, L. R.
Caggiano, J.
Hatarik, R.
Izumi, N.
Khan, S. F.
Knauer, J.
Ma, T.
Spears, B. K.
Town, R. P. J.
Bradley, D. K.
TI Diagnosing residual motion via the x-ray self emission from indirectly
driven inertial confinement implosions
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID NATIONAL-IGNITION-FACILITY
AB In an indirectly driven implosion, non-radial translational motion of the compressed fusion capsule is a signature of residual kinetic energy not coupled into the compressional heating of the target. A reduction in compression reduces the peak pressure and nuclear performance of the implosion. Measuring and reducing the residual motion of the implosion is therefore necessary to improve performance and isolate other effects that degrade performance. Using the gated x-ray diagnostic, the x-ray Bremsstrahlung emission from the compressed capsule is spatially and temporally resolved at x-ray energies of >8.7 keV, allowing for measurements of the residual velocity. Here details of the x-ray velocity measurement and fitting routine will be discussed and measurements will be compared to the velocities inferred from the neutron time of flight detectors. (C) 2014 AIP Publishing LLC.
C1 [Pak, A.; Field, J. E.; Benedetti, L. R.; Caggiano, J.; Hatarik, R.; Izumi, N.; Khan, S. F.; Ma, T.; Spears, B. K.; Town, R. P. J.; Bradley, D. K.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Knauer, J.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
RP Pak, A (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM pak5@llnl.gov
RI IZUMI, Nobuhiko/J-8487-2016
OI IZUMI, Nobuhiko/0000-0003-1114-597X
NR 9
TC 1
Z9 1
U1 0
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E605
DI 10.1063/1.4890259
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000192
PM 25430351
ER
PT J
AU Perez, F
Kemp, GE
Regan, SP
Barrios, MA
Pino, J
Scott, H
Ayers, S
Chen, H
Emig, J
Colvin, JD
Bedzyk, M
Shoup, MJ
Agliata, A
Yaakobi, B
Marshall, FJ
Hamilton, RA
Jaquez, J
Farrell, M
Nikroo, A
Fournier, KB
AF Perez, F.
Kemp, G. E.
Regan, S. P.
Barrios, M. A.
Pino, J.
Scott, H.
Ayers, S.
Chen, H.
Emig, J.
Colvin, J. D.
Bedzyk, M.
Shoup, M. J., III
Agliata, A.
Yaakobi, B.
Marshall, F. J.
Hamilton, R. A.
Jaquez, J.
Farrell, M.
Nikroo, A.
Fournier, K. B.
TI The NIF x-ray spectrometer calibration campaign at Omega
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID NATIONAL-IGNITION-FACILITY; LASER
AB The calibration campaign of the National Ignition Facility X-ray Spectrometer (NXS) was carried out at the OMEGA laser facility. Spherically symmetric, laser-driven, millimeter-scale x-ray sources of K-shell and L-shell emission from various mid-Z elements were designed for the 2-18 keV energy range of the NXS. The absolute spectral brightness was measured by two calibrated spectrometers. We compare the measured performance of the target design to radiation hydrodynamics simulations. (C) 2014 AIP Publishing LLC.
C1 [Perez, F.; Kemp, G. E.; Barrios, M. A.; Pino, J.; Scott, H.; Ayers, S.; Chen, H.; Emig, J.; Colvin, J. D.; Fournier, K. B.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Regan, S. P.; Bedzyk, M.; Shoup, M. J., III; Agliata, A.; Yaakobi, B.; Marshall, F. J.; Hamilton, R. A.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
[Jaquez, J.; Farrell, M.; Nikroo, A.] Gen Atom Co, San Diego, CA 92186 USA.
RP Fournier, KB (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA.
EM fournier2@llnl.gov
FU (U.S.) Department of Energy (DOE) by Lawrence Livermore National
Laboratory [DE-AC52-07NA27344]; Defense Threat Reduction Agency under
IAA [10027-5009 BASIC]
FX The authors thank M. Patel and M. Marinak for their contribution to the
simulations. This work was performed under the auspices of the (U.S.)
Department of Energy (DOE) by Lawrence Livermore National Laboratory
under Contract No. DE-AC52-07NA27344 and supported by the Defense Threat
Reduction Agency under IAA 10027-5009 BASIC, "DTRA time-resolved x-ray
spectrometer for the National Ignition Facility."
NR 13
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U1 0
U2 13
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D613
DI 10.1063/1.4891054
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000030
PM 25430189
ER
PT J
AU Perez, RV
Boeglin, WU
Darrow, DS
Cecconello, M
Klimek, I
Allan, SY
Akers, RJ
Keeling, DL
McClements, KG
Scannell, R
Turnyanskiy, M
Angulo, A
Avila, P
Leon, O
Lopez, C
Jones, OM
Conway, NJ
Michael, CA
AF Perez, R. V.
Boeglin, W. U.
Darrow, D. S.
Cecconello, M.
Klimek, I.
Allan, S. Y.
Akers, R. J.
Keeling, D. L.
McClements, K. G.
Scannell, R.
Turnyanskiy, M.
Angulo, A.
Avila, P.
Leon, O.
Lopez, C.
Jones, O. M.
Conway, N. J.
Michael, C. A.
TI Investigating fusion plasma instabilities in the Mega Amp Spherical
Tokamak using mega electron volt proton emissions
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB The proton detector (PD) measures 3 MeV proton yield distributions from deuterium-deuterium fusion reactions within the Mega Amp Spherical Tokamak (MAST). The PD's compact four-channel system of collimated and individually oriented silicon detectors probes different regions of the plasma, detecting protons (with gyro radii large enough to be unconfined) leaving the plasma on curved trajectories during neutral beam injection. From first PD data obtained during plasma operation in 2013, proton production rates (up to several hundred kHz and 1 ms time resolution) during sawtooth events were compared to the corresponding MAST neutron camera data. Fitted proton emission profiles in the poloidal plane demonstrate the capabilities of this new system. (C) 2014 AIP Publishing LLC.
C1 [Perez, R. V.; Boeglin, W. U.; Angulo, A.; Avila, P.; Leon, O.; Lopez, C.] Florida Int Univ, Dept Phys, Miami, FL 33199 USA.
[Darrow, D. S.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Cecconello, M.; Klimek, I.] Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden.
[Allan, S. Y.; Akers, R. J.; Keeling, D. L.; McClements, K. G.; Scannell, R.; Jones, O. M.; Conway, N. J.] CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
[Turnyanskiy, M.] EFDA CSU Garching, ITER Phys Dept, D-85748 Garching, Germany.
[Jones, O. M.] Univ Durham, Dept Phys, Durham DH1 3LE, England.
[Michael, C. A.] Australian Natl Univ, Canberra, ACT 0200, Australia.
RP Perez, RV (reprint author), Florida Int Univ, Dept Phys, 11200 SW 8 ST,CP204, Miami, FL 33199 USA.
EM rvale006@fiu.edu
FU (U.S.) Department of Energy (DOE) [DESC0001157, DEAC0209CH11466]; RCUK
Energy Programme [EP/I501045]; Swedish Research Council; European
Union's (EU) Horizon 2020 programme [210130335]; FIU Graduate &
Professional Student Committee; FIU Ronald E. McNair Post-Baccalureate
Achievement Program
FX This work was supported by: the (U.S.) Department of Energy (DOE)
Contract Nos. DESC0001157 and DEAC0209CH11466, the RCUK Energy Programme
under Grant No. EP/I501045, the Swedish Research Council, the European
Union's (EU) Horizon 2020 programme under Grant Agreement No. 210130335,
the FIU Graduate & Professional Student Committee, and the FIU Ronald E.
McNair Post-Baccalureate Achievement Program. We would like to thank
Nigel Thomas-Davies for his expertise during the PD installation. The
views and opinions expressed herein do not necessarily reflect those of
the European Commission.
NR 11
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U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D701
DI 10.1063/1.4889736
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000052
PM 25430211
ER
PT J
AU Pickworth, LA
McCarville, T
Decker, T
Pardini, T
Ayers, J
Bell, P
Bradley, D
Brejnholt, NF
Izumi, N
Mirkarimi, P
Pivovaroff, M
Smalyuk, V
Vogel, J
Walton, C
Kilkenny, J
AF Pickworth, L. A.
McCarville, T.
Decker, T.
Pardini, T.
Ayers, J.
Bell, P.
Bradley, D.
Brejnholt, N. F.
Izumi, N.
Mirkarimi, P.
Pivovaroff, M.
Smalyuk, V.
Vogel, J.
Walton, C.
Kilkenny, J.
TI A Kirkpatrick-Baez microscope for the National Ignition Facility
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID RAY; FUSION
AB Current pinhole x ray imaging at the National Ignition Facility (NIF) is limited in resolution and signal throughput to the detector for Inertial Confinement Fusion applications, due to the viable range of pinhole sizes (10-25 mu m) that can be deployed. A higher resolution and throughput diagnostic is in development using a Kirkpatrick-Baez microscope system (KBM). The system will achieve <9 mu m resolution over a 300 mu m field of view with a multilayer coating operating at 10.2 keV. Presented here are the first images from the uncoated NIF KBM configuration demonstrating high resolution has been achieved across the full 300 mu m field of view. (C) 2014 AIP Publishing LLC.
C1 [Pickworth, L. A.; McCarville, T.; Decker, T.; Pardini, T.; Ayers, J.; Bell, P.; Bradley, D.; Brejnholt, N. F.; Izumi, N.; Mirkarimi, P.; Pivovaroff, M.; Smalyuk, V.; Vogel, J.; Walton, C.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Kilkenny, J.] Gen Atom Co, San Diego, CA 92121 USA.
RP Pickworth, LA (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM pickworth1@llnl.gov
RI Pivovaroff, Michael/M-7998-2014; IZUMI, Nobuhiko/J-8487-2016;
OI Pivovaroff, Michael/0000-0001-6780-6816; IZUMI,
Nobuhiko/0000-0003-1114-597X; Pickworth, Louisa/0000-0002-0585-1934
FU Lawrence Livermore National Laboratory [DE-AC52-07NA27344,
LLNL-CONF-655227]
FX This work was performed by Lawrence Livermore National Laboratory under
Contract Nos. DE-AC52-07NA27344 and LLNL-CONF-655227.
NR 16
TC 9
Z9 9
U1 4
U2 15
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D611
DI 10.1063/1.4886433
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000028
PM 25430187
ER
PT J
AU Raman, R
Jarboe, TR
Nelson, BA
Gerhardt, SP
Lay, WS
Plunkett, GJ
AF Raman, R.
Jarboe, T. R.
Nelson, B. A.
Gerhardt, S. P.
Lay, W. -S.
Plunkett, G. J.
TI Design and operation of a fast electromagnetic inductive massive gas
injection valve for NSTX-U
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Results from the operation of an electromagnetic valve, that does not incorporate ferromagnetic materials, are presented. Image currents induced on a conducting disc placed near a pancake solenoid cause it to move away from the solenoid and open the vacuum seal. A new and important design feature is the use of Lip Seals for the sliding piston. The pressure rise in the test chamber is measured directly using a fast time response Baratron gauge. The valve injects over 200 Torr l of nitrogen in less than 3 ms, which remains unchanged at moderate magnetic fields. (C) 2014 AIP Publishing LLC.
C1 [Raman, R.; Jarboe, T. R.; Nelson, B. A.; Lay, W. -S.; Plunkett, G. J.] Univ Washington, William E Boeing Dept Aeronaut & Astronaut, Seattle, WA 98195 USA.
[Gerhardt, S. P.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Raman, R (reprint author), Univ Washington, William E Boeing Dept Aeronaut & Astronaut, Seattle, WA 98195 USA.
EM raman@aa.washington.edu
FU US DOE [DE-SC0006757, DE-AC02-09CH11466]
FX We are grateful to Dr. M. Lehnen of the ITER organization for providing
many of the details of the TEXTOR MGI valve and for other helpful
recommendations concerning valve installation details on NSTX-U. We
would also like to thank Dr. L. Baylor of ORNL for describing the valve
experimental set-ups on DIII-D. This work is supported by US DOE
Contract Nos. DE-SC0006757 and DE-AC02-09CH11466.
NR 6
TC 4
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U1 1
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E801
DI 10.1063/1.4885545
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000207
PM 25430366
ER
PT J
AU Ren, X
Domier, CW
Kramer, G
Luhmann, NC
Muscatello, CM
Shi, L
Tobias, BJ
Valeo, E
AF Ren, X.
Domier, C. W.
Kramer, G.
Luhmann, N. C., Jr.
Muscatello, C. M.
Shi, L.
Tobias, B. J.
Valeo, E.
TI Process to generate a synthetic diagnostic for microwave imaging
reflectometry with the full-wave code FWR2D
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID FUSION PLASMAS; FLUCTUATION MEASUREMENTS; SIMULATION; TURBULENCE
AB A synthetic microwave imaging reflectometer (MIR) diagnostic employing the full-wave reflectometer code (FWR2D) has been developed and is currently being used to guide the design of real systems, such as the one recently installed on DIII-D. The FWR2D code utilizes real plasma profiles as input, and it is combined with optical simulation tools for synthetic diagnostic signal generation. A detailed discussion of FWR2D and the process to generate the synthetic signal are presented in this paper. The synthetic signal is also compared to a prescribed density fluctuation spectrum to quantify the imaging quality. An example is presented with H-mode-like plasma profiles derived from a DIII-D discharge, where the MIR focal is located in the pedestal region. It is shown that MIR is suitable for diagnosing fluctuations with poloidal wavenumber up to 2.0 cm(-1) and fluctuation amplitudes less than 5%. (C) 2014 AIP Publishing LLC.
C1 [Ren, X.; Domier, C. W.; Luhmann, N. C., Jr.; Muscatello, C. M.] Univ Calif Davis, Millimeter & Microwave Res Ctr, Davis, CA 95616 USA.
[Kramer, G.; Shi, L.; Tobias, B. J.; Valeo, E.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Ren, X (reprint author), Univ Calif Davis, Millimeter & Microwave Res Ctr, Davis, CA 95616 USA.
EM xren@ucdavis.edu
FU U.S. DOE [DE-AC02-09CH11466, DE-FG02-99ER54531, DE-FC02-04ER54698]
FX This work is supported by U.S. DOE Grants DE-AC02-09CH11466,
DE-FG02-99ER54531, and DE-FC02-04ER54698.
NR 14
TC 5
Z9 5
U1 2
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D863
DI 10.1063/1.4895100
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000117
PM 25430276
ER
PT J
AU Rinderknecht, HG
Sio, H
Frenje, JA
Magoon, J
Agliata, A
Shoup, M
Ayers, S
Bailey, CG
Johnson, MG
Zylstra, AB
Sinenian, N
Rosenberg, MJ
Li, CK
Seguin, FH
Petrasso, RD
Rygg, JR
Kimbrough, JR
Mackinnon, A
Bell, P
Bionta, R
Clancy, T
Zacharias, R
House, A
Doppner, T
Park, HS
LePape, S
Landen, O
Meezan, N
Robey, H
Glebov, VU
Hohenberger, M
Stoeckl, C
Sangster, TC
Li, C
Parat, J
Olson, R
Kline, J
Kilkenny, J
AF Rinderknecht, H. G.
Sio, H.
Frenje, J. A.
Magoon, J.
Agliata, A.
Shoup, M.
Ayers, S.
Bailey, C. G.
Johnson, M. Gatu
Zylstra, A. B.
Sinenian, N.
Rosenberg, M. J.
Li, C. K.
Seguin, F. H.
Petrasso, R. D.
Rygg, J. R.
Kimbrough, J. R.
Mackinnon, A.
Bell, P.
Bionta, R.
Clancy, T.
Zacharias, R.
House, A.
Doeppner, T.
Park, H. S.
LePape, S.
Landen, O.
Meezan, N.
Robey, H.
Glebov, V. U.
Hohenberger, M.
Stoeckl, C.
Sangster, T. C.
Li, C.
Parat, J.
Olson, R.
Kline, J.
Kilkenny, J.
TI A magnetic particle time-of-flight (MagPTOF) diagnostic for measurements
of shock- and compression-bang time at the NIF (invited)
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID NATIONAL-IGNITION-FACILITY
AB A magnetic particle time-of-flight (MagPTOF) diagnostic has been designed to measure shock-and compression-bang time using D3He-fusion protons and DD-fusion neutrons, respectively, at the National Ignition Facility (NIF). This capability, in combination with shock-burn weighted areal density measurements, will significantly constrain the modeling of the implosion dynamics. This design is an upgrade to the existing particle time-of-flight (pTOF) diagnostic, which records bang times using DD or DT neutrons with an accuracy better than +/- 70 ps [H. G. Rinderknecht et al., Rev. Sci. Instrum. 83, 10D902 (2012)]. The inclusion of a deflecting magnet will increase D3He-proton signal-to- background by a factor of 1000, allowing for the first time simultaneous measurements of shock and compression-bang times in D3He-filled surrogate implosions at the NIF. (C) 2014 AIP Publishing LLC.
C1 [Rinderknecht, H. G.; Sio, H.; Frenje, J. A.; Johnson, M. Gatu; Zylstra, A. B.; Sinenian, N.; Rosenberg, M. J.; Li, C. K.; Seguin, F. H.; Petrasso, R. D.] MIT, Cambridge, MA 02139 USA.
[Magoon, J.; Agliata, A.; Shoup, M.; Glebov, V. U.; Hohenberger, M.; Stoeckl, C.; Sangster, T. C.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
[Ayers, S.; Bailey, C. G.; Rygg, J. R.; Kimbrough, J. R.; Mackinnon, A.; Bell, P.; Bionta, R.; Clancy, T.; Zacharias, R.; House, A.; Doeppner, T.; Park, H. S.; LePape, S.; Landen, O.; Meezan, N.; Robey, H.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Li, C.; Parat, J.] Dexter Magnet Technol, Elk Grove Village, IL 60007 USA.
[Olson, R.] Sandia Natl Labs, Albuquerque, NM 87123 USA.
[Kline, J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Kilkenny, J.] Gen Atom Co, San Diego, CA 92121 USA.
RP Rinderknecht, HG (reprint author), MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
EM hgr@mit.edu
RI MacKinnon, Andrew/P-7239-2014; lepape, sebastien/J-3010-2015;
OI MacKinnon, Andrew/0000-0002-4380-2906; Kline, John/0000-0002-2271-9919;
/0000-0003-4969-5571
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; U.S. DoE [DE-FG52-09NA29553]; LLNL [B580243]; LLE
[414090-G]; Fusion Science Center at the University of Rochester
[415023-G]; National Laser Users Facility [DE-NA0000877]
FX The authors thank the engineering and operations staff at NIF, LLE, and
MIT for their support. This work was performed under the auspices of the
U.S. Department of Energy by Lawrence Livermore National Laboratory
under Contract No. DE-AC52-07NA27344. This work was done in part for H.
Rinderknecht's Ph.D. thesis and was supported in part by the U.S. DoE
(DE-FG52-09NA29553), LLNL (B580243), LLE (414090-G), the Fusion Science
Center at the University of Rochester (415023-G), and the National Laser
Users Facility (DE-NA0000877).
NR 14
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U1 0
U2 11
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D901
DI 10.1063/1.4886775
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000120
PM 25430279
ER
PT J
AU Ross, JS
Moody, JD
Fiuza, F
Ryutov, D
Divol, L
Huntington, CM
Park, HS
AF Ross, J. S.
Moody, J. D.
Fiuza, F.
Ryutov, D.
Divol, L.
Huntington, C. M.
Park, H. -S.
TI Thomson scattering measurements from asymmetric interpenetrating plasma
flows
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Imaging Thomson scattering measurements of collective ion-acoustic fluctuations have been utilized to determine ion temperature and density from laser produced counter-streaming asymmetric flows. Two foils are heated with 8 laser beams each, 500 J per beam, at the Omega Laser facility. Measurements are made 4 mm from the foil surface using a 60 J 2 omega probe laser with a 200 ps pulse length. Measuring the electron density and temperature from the electron-plasma fluctuations constrains the fit of the multi-ion species, asymmetric flows theoretical form factor for the ion feature such that the ion temperatures, ion densities, and flow velocities for each plasma flow are determined. (C) 2014 AIP Publishing LLC.
C1 [Ross, J. S.; Moody, J. D.; Fiuza, F.; Ryutov, D.; Divol, L.; Huntington, C. M.; Park, H. -S.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Ross, JS (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA.
EM ross36@llnl.gov
FU (U.S.) Department of Energy (DOE) by Lawrence Livermore National
Laboratory [DE-AC52-07NA27344]
FX This work was performed under the auspices of the (U.S.) Department of
Energy (DOE) by Lawrence Livermore National Laboratory under Contract
No. DE-AC52-07NA27344.
NR 18
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U1 1
U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E613
DI 10.1063/1.4891974
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000200
PM 25430359
ER
PT J
AU Schmitt, JC
Bialek, J
Lazerson, S
Majeski, R
AF Schmitt, J. C.
Bialek, J.
Lazerson, S.
Majeski, R.
TI Magnetic diagnostics for equilibrium reconstructions with eddy currents
on the lithium tokamak experiment
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB The Lithium Tokamak eXperiment is a spherical tokamak with a close-fitting low-recycling wall composed of thin lithium layers evaporated onto a stainless steel-lined copper shell. Long-lived non-axisymmetric eddy currents are induced in the shell and vacuum vessel by transient plasma and coil currents and these eddy currents influence both the plasma and the magnetic diagnostic signals that are used as constraints for equilibrium reconstruction. A newly installed set of re-entrant magnetic diagnostics and internal saddle flux loops, compatible with high-temperatures and lithium environments, is discussed. Details of the axisymmetric (2D) and non-axisymmetric (3D) treatments of the eddy currents and the equilibrium reconstruction are presented. (C) 2014 AIP Publishing LLC.
C1 [Schmitt, J. C.; Lazerson, S.; Majeski, R.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Bialek, J.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA.
RP Schmitt, JC (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM jschmitt@pppl.gov
RI Lazerson, Samuel/E-4816-2014
OI Lazerson, Samuel/0000-0001-8002-0121
FU U.S. DOE [DE-AC02-09CH11466, DE-AC05-00OR22725]
FX This work was supported by U.S. DOE Contract Nos. DE-AC02-09CH11466 and
DE-AC05-00OR22725.
NR 7
TC 3
Z9 3
U1 0
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E817
DI 10.1063/1.4892159
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000223
PM 25430382
ER
PT J
AU Schwartz, JA
Jaworski, MA
Mehl, J
Kaita, R
Mozulay, R
AF Schwartz, J. A.
Jaworski, M. A.
Mehl, J.
Kaita, R.
Mozulay, R.
TI Electrical detection of liquid lithium leaks from pipe joints
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB A test stand for flowing liquid lithium is under construction at Princeton Plasma Physics Laboratory. As liquid lithium reacts with atmospheric gases and water, an electrical interlock system for detecting leaks and safely shutting down the apparatus has been constructed. A defense in depth strategy is taken to minimize the risk and impact of potential leaks. Each demountable joint is diagnosed with a cylindrical copper shell electrically isolated from the loop. By monitoring the electrical resistance between the pipe and the copper shell, a leak of (conductive) liquid lithium can be detected. Any resistance of less than 2 k Omega trips a relay, shutting off power to the heaters and pump. The system has been successfully tested with liquid gallium as a surrogate liquid metal. The circuit features an extensible number of channels to allow for future expansion of the loop. To ease diagnosis of faults, the status of each channel is shown with an analog front panel LED, and monitored and logged digitally by LabVIEW. (C) 2014 AIP Publishing LLC.
C1 [Schwartz, J. A.; Jaworski, M. A.; Mehl, J.; Kaita, R.; Mozulay, R.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Schwartz, JA (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM jschwart@pppl.gov
RI Schwartz, Jacob/L-5744-2015
OI Schwartz, Jacob/0000-0001-9636-8181
FU (U.S.) Department of Energy (DOE) [DE-AC02-09CH11466]
FX This work is supported by (U.S.) Department of Energy (DOE) Contract No.
DE-AC02-09CH11466.
NR 12
TC 0
Z9 0
U1 0
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E824
DI 10.1063/1.4894002
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000230
PM 25430389
ER
PT J
AU Seely, JF
Glover, JL
Hudson, LT
Ralchenko, Y
Henins, A
Pereira, N
Feldman, U
Di Stefano, CA
Kuranz, CC
Drake, RP
Chen, H
Williams, GJ
Park, J
AF Seely, J. F.
Glover, J. L.
Hudson, L. T.
Ralchenko, Y.
Henins, Albert
Pereira, N.
Feldman, U.
Di Stefano, C. A.
Kuranz, C. C.
Drake, R. P.
Chen, Hui
Williams, G. J.
Park, J.
TI Measurement of high-energy (10-60 keV) x-ray spectral line widths with
eV accuracy
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB A high resolution crystal spectrometer utilizing a crystal in transmission geometry has been developed and experimentally optimized to measure the widths of emission lines in the 10-60 keV energy range with eV accuracy. The spectrometer achieves high spectral resolution by utilizing crystal planes with small lattice spacings (down to 2d = 0.099 nm), a large crystal bending radius and Rowland circle diameter (965 mm), and an image plate detector with high spatial resolution (60 mu m in the case of the Fuji TR image plate). High resolution W L-shell and K-shell laboratory test spectra in the 10-60 keV range and Ho K-shell spectra near 47 keV recorded at the LLNL Titan laser facility are presented. The Ho K-shell spectra are the highest resolution hard x-ray spectra recorded from a solid target irradiated by a high-intensity laser. (C) 2014 AIP Publishing LLC.
C1 [Seely, J. F.; Feldman, U.] Artep Inc, Ellicott City, MD 21042 USA.
[Glover, J. L.; Hudson, L. T.; Ralchenko, Y.; Henins, Albert] NIST, Gaithersburg, MD 20899 USA.
[Pereira, N.] Ecopulse Inc, Springfield, VA 22152 USA.
[Di Stefano, C. A.; Kuranz, C. C.; Drake, R. P.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Chen, Hui; Williams, G. J.; Park, J.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Seely, JF (reprint author), Artep Inc, 2922 Excelsior Springs Court, Ellicott City, MD 21042 USA.
EM seelyjf@gmail.com
RI Ralchenko, Yuri/E-9297-2016; Drake, R Paul/I-9218-2012;
OI Ralchenko, Yuri/0000-0003-0083-9554; Drake, R Paul/0000-0002-5450-9844;
Di Stefano, Carlos/0000-0001-6166-3519
FU Defense Threat Reduction Agency [DTRA-1-10-0077]; NNSA-DS; SC-OFES Joint
Program in High-Energy-Density Laboratory Plasmas [DE-NA0001840]
FX This work was funded by the Defense Threat Reduction Agency, Grant No.
DTRA-1-10-0077 and by the NNSA-DS and SC-OFES Joint Program in
High-Energy-Density Laboratory Plasmas, Grant No. DE-NA0001840.
NR 4
TC 2
Z9 2
U1 2
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D618
DI 10.1063/1.4891726
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000035
PM 25430194
ER
PT J
AU Shaw, G
Martin, MZ
Martin, R
Biewer, TM
AF Shaw, G.
Martin, M. Z.
Martin, R.
Biewer, T. M.
TI Preliminary design of laser-induced breakdown spectroscopy for
proto-Material Plasma Exposure eXperiment
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Laser-induced breakdown spectroscopy (LIBS) is a technique for measuring surface matter composition. LIBS is performed by focusing laser radiation onto a target surface, ablating the surface, forming a plasma, and analyzing the light produced. LIBS surface analysis is a possible diagnostic for characterizing plasma-facing materials in ITER. Oak Ridge National Laboratory has enabled the initial installation of a laser-induced breakdown spectroscopy diagnostic on the prototype Material-Plasma Exposure eXperiment (Proto-MPEX), which strives to mimic the conditions found at the surface of the ITER divertor. This paper will discuss the LIBS implementation on Proto-MPEX, preliminary design of the fiber optic LIBS collection probe, and the expected results. (C) 2014 AIP Publishing LLC.
C1 [Shaw, G.; Martin, M. Z.; Martin, R.; Biewer, T. M.] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA.
[Shaw, G.] Univ Tennessee, Knoxville, TN 37996 USA.
RP Shaw, G (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA.
EM shawgc@ornl.gov
OI Martin, Madhavi/0000-0002-6677-2180
FU U.S. D.O.E [DE-AC05-00OR22725]; Laboratory Directed Research and
Development Program of Oak Ridge National Laboratory
FX This work was supported by the U.S. D.O.E Contract No.
DE-AC05-00OR22725. Research sponsored by the Laboratory Directed
Research and Development Program of Oak Ridge National Laboratory,
managed by UT-Battelle, LLC, for the U.S. Department of Energy.
NR 20
TC 1
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U1 0
U2 20
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D806
DI 10.1063/1.4885472
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000060
PM 25430219
ER
PT J
AU Smilowitz, L
Henson, BF
Holmes, M
Novak, A
Oschwald, D
Dolgonos, P
Qualls, B
AF Smilowitz, L.
Henson, B. F.
Holmes, M.
Novak, A.
Oschwald, D.
Dolgonos, P.
Qualls, B.
TI X-ray transmission movies of spontaneous dynamic events
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB We describe a new x-ray radiographic imaging system which allows for continuous x-ray transmission imaging of spontaneous dynamic events. We demonstrate this method on thermal explosions in three plastic bonded formulations of the energetic material octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine. We describe the x-ray imaging system and triggering developed to enable the continuous imaging of a thermal explosion. (C) 2014 AIP Publishing LLC.
C1 [Smilowitz, L.; Henson, B. F.; Holmes, M.; Novak, A.; Oschwald, D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Dolgonos, P.; Qualls, B.] CoRE Labs Med, Englewood, CO 80110 USA.
RP Smilowitz, L (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
FU Science Campaign and Surety Programs
FX The authors wish to acknowledge support from the Science Campaign and
Surety Programs administered by Los Alamos National Laboratory and the
Joint Munitions Program administered jointly by the Departments of
Energy and Defense.
NR 14
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U1 0
U2 8
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 113904
DI 10.1063/1.4901093
PG 5
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000270
PM 25430121
ER
PT J
AU Soukhanovskii, VA
McLean, AG
Allen, SL
AF Soukhanovskii, V. A.
McLean, A. G.
Allen, S. L.
TI Near-infrared spectroscopy for divertor plasma diagnosis and control in
DIII-D tokamak
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID RECOMBINATION; PROFILES; REGION
AB New near infrared (NIR) spectroscopic measurements performed in the DIII-D tokamak divertor plasma suggest new viable diagnostic applications: divertor recycling and low-Z impurity flux measurements, a spectral survey for divertor Thomson scattering (DTS) diagnostic, and T-e monitoring for divertor detachment control. A commercial 0.3 m spectrometer coupled to an imaging lens via optical fiber and a InGaAs 1024 pixel array detector enabled deuterium and impurity emission measurements in the range 800-2300 nm. The first full NIR survey identified D, He, B, Li, C, N, O, Ne lines and provided plasma T-e, n(e) estimates from deuterium Paschen and Brackett series intensity and Stark line broadening analysis. The range 1.000-1.060 mm was surveyed in high-density and neon seeded divertor plasmas for spectral background emission studies for lambda = 1.064 mu m laser-based DTS development. The ratio of adjacent deuterium Paschen-alpha and Brackett Br9 lines in recombining divertor plasmas is studied for divertor T-e monitoring aimed at divertor detachment real-time feedback control. (C) 2014 AIP Publishing LLC.
C1 [Soukhanovskii, V. A.; McLean, A. G.; Allen, S. L.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Soukhanovskii, VA (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM vlad@llnl.gov
FU (U.S.) Department of Energy (DOE) [DE-AC52-07NA27344, DE-AC02-09CH11466]
FX The authors would like to thank the entire DIII-D Team for plasma and
diagnostic operations. Dr. H. Scott (LLNL) is acknowledged for the
CRETIN code. The ARC spectrograph used in this work was on loan from
Princeton Plasma Physics Laboratory. This work was supported by the
(U.S.) Department of Energy (DOE) under DE-AC52-07NA27344 and
DE-AC02-09CH11466.
NR 17
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E418
DI 10.1063/1.4891600
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000166
PM 25430325
ER
PT J
AU Spear, AG
Domier, CW
Hu, X
Muscatello, CM
Ren, X
Tobias, BJ
Luhmann, NC
AF Spear, A. G.
Domier, C. W.
Hu, X.
Muscatello, C. M.
Ren, X.
Tobias, B. J.
Luhmann, N. C., Jr.
TI 2D microwave imaging reflectometer electronics
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID PLASMAS
AB A 2D microwave imaging reflectometer system has been developed to visualize electron density fluctuations on the DIII-D tokamak. Simultaneously illuminated at four probe frequencies, large aperture optics image reflections from four density-dependent cutoff surfaces in the plasma over an extended region of the DIII-D plasma. Localized density fluctuations in the vicinity of the plasma cutoff surfaces modulate the plasma reflections, yielding a 2D image of electron density fluctuations. Details are presented of the receiver down conversion electronics that generate the in-phase (I) and quadrature (Q) reflectometer signals from which 2D density fluctuation data are obtained. Also presented are details on the control system and backplane used to manage the electronics as well as an introduction to the computer based control program. (C) 2014 AIP Publishing LLC.
C1 [Spear, A. G.; Domier, C. W.; Hu, X.; Muscatello, C. M.; Ren, X.; Luhmann, N. C., Jr.] Univ Calif Davis, Davis, CA 95616 USA.
[Tobias, B. J.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Domier, CW (reprint author), Univ Calif Davis, Davis, CA 95616 USA.
EM cwdomier@ucdavis.edu
FU U.S. DOE [DE-FG02-99ER54531, DE-FC02-04ER54698]
FX This work was supported by U.S. DOE Grant Nos. DE-FG02-99ER54531 and
DE-FC02-04ER54698. Special thanks to Professor Jane Gu and Professor
Anh-Vu Pham of the Davis MM-Wave Research Center for their help in
reviewing the multilayer PCB design.
NR 6
TC 0
Z9 0
U1 3
U2 8
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D834
DI 10.1063/1.4891047
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000088
PM 25430247
ER
PT J
AU Steel, AB
Dunn, J
Emig, J
Beiersdorfer, P
Brown, GV
Shepherd, R
Marley, EV
Hoarty, DJ
AF Steel, A. B.
Dunn, J.
Emig, J.
Beiersdorfer, P.
Brown, G. V.
Shepherd, R.
Marley, E. V.
Hoarty, D. J.
TI Development of a ten inch manipulators-based, flexible, broadband
two-crystal spectrometer
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB We have developed and implemented a broadband X-ray spectrometer with a variable energy range for use at the Atomic Weapons Establishment's Orion Laser. The spectrometer covers an energy bandwidth of similar to 1-2 keV using two independently mounted, movable Bragg diffraction crystals. Using combinations of cesium hydrogen pthlate, ammonium dihydrogen phosphate, and pentaerythritol crystals, spectra covering the 1.4-2.5, 1.85-3.15, or 3.55-5.1 keV energy bands have been measured. Image plate is used for detection owing to its high dynamic range. Background signals caused by high energy X-rays and particles commonly produced in high energy laser experiments are reduced by a series of tantalum baffles and filters installed between the source and crystal and also between the crystals and detector. (C) 2014 AIP Publishing LLC.
C1 [Steel, A. B.; Dunn, J.; Emig, J.; Beiersdorfer, P.; Brown, G. V.; Shepherd, R.; Marley, E. V.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Hoarty, D. J.] Atom Weap Estab, Aldermaston, England.
RP Steel, AB (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM steel1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work performed under the auspices of the U.S. Department of Energy
by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344.
NR 8
TC 1
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U1 2
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D610
DI 10.1063/1.4890671
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000027
PM 25430186
ER
PT J
AU Strelnikov, N
Trakhtenberg, E
Vasserman, I
Xu, J
Gluskin, E
AF Strelnikov, N.
Trakhtenberg, E.
Vasserman, I.
Xu, J.
Gluskin, E.
TI Vertically polarizing undulator with the dynamic compensation of
magnetic forces for the next generation of light sources
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB A short prototype (847-mm-long) of an Insertion Device (ID) with the dynamic compensation of ID magnetic forces has been designed, built, and tested at the Advanced Photon Source (APS) of the Argonne National Laboratory. The ID magnetic forces were compensated by the set of conical springs placed along the ID strongback. Well-controlled exponential characteristics of conical springs permitted a very close fit to the ID magnetic forces. Several effects related to the imperfections of actual springs, their mounting and tuning, and how these factors affect the prototype performance has been studied. Finally, series of tests to determine the accuracy and reproducibility of the ID magnetic gap settings have been carried out. Based on the magnetic measurements of the ID B-eff, it has been demonstrated that the magnetic gaps within an operating range were controlled accurately and reproducibly within +/- 1 mu m. Successful tests of this ID prototype led to the design of a 3-m long device based on the same concept. The 3-m long prototype is currently under construction. It represents R&D efforts by the APS toward APS Upgrade Project goals as well as the future generation of IDs for the Linac Coherent Light Source (LCLS). (C) 2014 AIP Publishing LLC.
C1 [Strelnikov, N.; Trakhtenberg, E.; Vasserman, I.; Xu, J.; Gluskin, E.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Strelnikov, N.] Budker Inst Nucl Phys, Novosibirsk 630090, Russia.
RP Strelnikov, N (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
FU U.S. Department of Energy, Basic Energy Sciences, Office of Science
[DE-AC02-06CH11357.N]
FX This work is supported by the U.S. Department of Energy, Basic Energy
Sciences, Office of Science, under Contract No. DE-AC02-06CH11357.N.
NR 12
TC 1
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U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 113303
DI 10.1063/1.4900544
PG 5
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000255
PM 25430106
ER
PT J
AU Styron, JD
Cooper, GW
Ruiz, CL
Hahn, KD
Chandler, GA
Nelson, AJ
Torres, JA
McWatters, BR
Carpenter, K
Bonura, MA
AF Styron, J. D.
Cooper, G. W.
Ruiz, C. L.
Hahn, K. D.
Chandler, G. A.
Nelson, A. J.
Torres, J. A.
McWatters, B. R.
Carpenter, Ken
Bonura, M. A.
TI Predicting the sensitivity of the beryllium/scintillator layer neutron
detector using Monte Carlo and experimental response functions
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID SCINTILLATION-COUNTERS; ACTIVATION DETECTOR; CALIBRATION; DECAY
AB A methodology for obtaining empirical curves relating absolute measured scintillation light output to beta energy deposited is presented. Output signals were measured from thin plastic scintillator using NIST traceable beta and gamma sources and MCNP5 was used to model the energy deposition from each source. Combining the experimental and calculated results gives the desired empirical relationships. To validate, the sensitivity of a beryllium/scintillator-layer neutron activation detector was predicted and then exposed to a known neutron fluence from a Deuterium-Deuterium fusion plasma (DD). The predicted and the measured sensitivity were in statistical agreement. (C) 2014 AIP Publishing LLC.
C1 [Styron, J. D.; Cooper, G. W.; Carpenter, Ken; Bonura, M. A.] Univ New Mexico, Dept Nucl Engn, Albuquerque, NM 87131 USA.
[Ruiz, C. L.; Hahn, K. D.; Chandler, G. A.; Nelson, A. J.; Torres, J. A.; McWatters, B. R.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Styron, JD (reprint author), Univ New Mexico, Dept Nucl Engn, Albuquerque, NM 87131 USA.
EM jdstyro@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 operated by
Sandia Corporation, a wholly owned subsidiary of Lockheed Martin
Company, for the U.S. Department of Energy's National Nuclear Security
Administration under Contract No. DE-AC04-94AL85000.
NR 21
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U1 0
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E617
DI 10.1063/1.4896176
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000204
PM 25430363
ER
PT J
AU Swadling, GF
Lebedev, SV
Hall, GN
Patankar, S
Stewart, NH
Smith, RA
Harvey-Thompson, AJ
Burdiak, GC
de Grouchy, P
Skidmore, J
Suttle, L
Suzuki-Vidal, F
Bland, SN
Kwek, KH
Pickworth, L
Bennett, M
Hare, JD
Rozmus, W
Yuan, J
AF Swadling, G. F.
Lebedev, S. V.
Hall, G. N.
Patankar, S.
Stewart, N. H.
Smith, R. A.
Harvey-Thompson, A. J.
Burdiak, G. C.
de Grouchy, P.
Skidmore, J.
Suttle, L.
Suzuki-Vidal, F.
Bland, S. N.
Kwek, K. H.
Pickworth, L.
Bennett, M.
Hare, J. D.
Rozmus, W.
Yuan, J.
TI Diagnosing collisions of magnetized, high energy density plasma flows
using a combination of collective Thomson scattering, Faraday rotation,
and interferometry
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID Z-PINCH
AB A suite of laser based diagnostics is used to study interactions of magnetised, supersonic, radiatively cooled plasma flows produced using the Magpie pulse power generator (1.4 MA, 240 ns rise time). Collective optical Thomson scattering measures the time-resolved local flow velocity and temperature across 7-14 spatial positions. The scattering spectrum is recorded from multiple directions, allowing more accurate reconstruction of the flow velocity vectors. The areal electron density is measured using 2D interferometry; optimisation and analysis are discussed. The Faraday rotation diagnostic, operating at 1053 nm, measures the magnetic field distribution in the plasma. Measurements obtained simultaneously by these diagnostics are used to constrain analysis, increasing the accuracy of interpretation. (C) 2014 AIP Publishing LLC.
C1 [Swadling, G. F.; Lebedev, S. V.; Hall, G. N.; Patankar, S.; Stewart, N. H.; Smith, R. A.; Burdiak, G. C.; de Grouchy, P.; Skidmore, J.; Suttle, L.; Suzuki-Vidal, F.; Bland, S. N.; Kwek, K. H.; Pickworth, L.; Bennett, M.; Hare, J. D.] Univ London Imperial Coll Sci Technol & Med, Plasma Phys Grp, London SW6 7LZ, England.
[Harvey-Thompson, A. J.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Rozmus, W.] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada.
[Yuan, J.] CAE, Inst Fluid Phys, Key Lab Pulsed Power, Mianyang 621900, Peoples R China.
RP Swadling, GF (reprint author), Univ London Imperial Coll Sci Technol & Med, Plasma Phys Grp, London SW6 7LZ, England.
EM george.swadling@imperial.ac.uk
RI Hall, Gareth/C-4179-2015; Swadling, George/S-5980-2016
OI Swadling, George/0000-0001-8370-8837
FU EPSRC [EP/G001324/1]; DOE [DE-F03-02NA00057, DE-SC-0001063]; Sandia
National Laboratories
FX This work was supported in part by EPSRC Grant No. EP/G001324/1, by DOE
cooperative Agreement Nos. DE-F03-02NA00057 and DE-SC-0001063 and by
Sandia National Laboratories. We are pleased to acknowledge joint EPSRC
and AWE Aldermaston support for personnel.
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PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E502
DI 10.1063/1.4890564
PG 8
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000185
PM 25430344
ER
PT J
AU Thomas, CE
Granstedt, EM
Biewer, TM
Baylor, LR
Combs, SK
Meitner, SJ
Hillis, DL
Majeski, R
Kaita, R
AF Thomas, C. E. (Tommy), Jr.
Granstedt, E. M.
Biewer, T. M.
Baylor, L. R.
Combs, S. K.
Meitner, S. J.
Hillis, D. L.
Majeski, R.
Kaita, R.
TI Digital holography for in situ real-time measurement of
plasma-facing-component erosion
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB In situ, real time measurement of net plasma-facing-component (PFC) erosion/deposition in a real plasma device is challenging due to the need for good spatial and temporal resolution, sufficient sensitivity, and immunity to fringe-jump errors. Design of a high-sensitivity, potentially high-speed, dual-wavelength CO2 laser digital holography system (nominally immune to fringe jumps) for PFC erosion measurement is discussed. (C) 2014 AIP Publishing LLC.
C1 [Thomas, C. E. (Tommy), Jr.] Third Dimens Technol LLC, Knoxville, TN 37931 USA.
[Granstedt, E. M.] Trialpha Energy, Rancho Santa Margarita, CA 92688 USA.
[Biewer, T. M.; Baylor, L. R.; Combs, S. K.; Meitner, S. J.; Hillis, D. L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Majeski, R.; Kaita, R.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Thomas, CE (reprint author), Third Dimens Technol LLC, Knoxville, TN 37931 USA.
EM thomasce1@seetrue3d.com
FU USDOE [DE-AC02-09CH11466, DE-FG02-07ER84724]
FX Partial support from USDOE Contract No. DE-AC02-09CH11466 and USDOE
Grant No. DE-FG02-07ER84724 is gratefully acknowledged.
NR 6
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PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D810
DI 10.1063/1.4886435
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000064
PM 25430223
ER
PT J
AU Tobias, B
Grierson, BA
Muscatello, CM
Ren, X
Domier, CW
Luhmann, NC
Zemedkun, SE
Munsat, TL
Classen, IGJ
AF Tobias, B.
Grierson, B. A.
Muscatello, C. M.
Ren, X.
Domier, C. W.
Luhmann, N. C., Jr.
Zemedkun, S. E.
Munsat, T. L.
Classen, I. G. J.
TI Phase-locking of magnetic islands diagnosed by ECE-imaging
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID NEOCLASSICAL TEARING MODES; WAVE-NUMBER; D TOKAMAK; DIII-D; FREQUENCY;
STABILITY; GEOMETRY; SPECTRA; JET
AB Millimeter-wave imaging diagnostics identify phase-locking and the satisfaction of 3-wave coupling selection criteria among multiple magnetic island chains by providing a localized, internal measurement of the 2D power spectral density, S(omega, k(pol)). In high-confinement tokamak discharges, these interactions impact both plasma rotation and tearing stability. Nonlinear coupling among neoclassical tearing modes of different n-number, with islands not satisfying the poloidal mode number selection criterion < m, m', m - m'>, contributes to a reduction in core rotation and flow shear in the vicinity of the modes. (C) 2014 AIP Publishing LLC.
C1 [Tobias, B.; Grierson, B. A.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Muscatello, C. M.; Ren, X.; Domier, C. W.; Luhmann, N. C., Jr.] Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA.
[Zemedkun, S. E.; Munsat, T. L.] Univ Colorado, Dept Elect & Comp Engn, Boulder, CO 80309 USA.
[Classen, I. G. J.] Dutch Inst Fundamental Energy Res DIFFER, NL-3430 BE Nieuwegein, Netherlands.
RP Tobias, B (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM bjtobias@pppl.gov
FU U.S. Department of Energy [DE-AC02-09CH11466, DE-FG02-99ER54531,
DE-SC0003913, DE-FC02-04ER54698]
FX This work was supported in part by the U.S. Department of Energy under
DE-AC02-09CH11466, DE-FG02-99ER54531, DE-SC0003913, and
DE-FC02-04ER54698. We thank the DIII-D team for their support of these
experiments. The authors would also like to thank Dr. Michio Okabayashi
and Dr. George McKee for their generous contributions. DIII-D data shown
in this paper can be obtained in digital format by following the links
at https://fusion.gat.com/global/D3D_DMP.
NR 26
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PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D847
DI 10.1063/1.4892438
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000101
PM 25430260
ER
PT J
AU Tritz, K
Diallo, A
LeBlanc, BP
Sabbagh, S
Stutman, D
AF Tritz, K.
Diallo, A.
LeBlanc, B. P.
Sabbagh, S.
Stutman, D.
TI Boundary displacement measurements using multi-energy soft x-rays
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID NSTX; PLASMAS
AB The Multi-Energy Soft X-ray (ME-SXR) system on NSTX provides radial profiles of soft X-ray emission, measured through a set of filters with varying thickness, which have been used to reconstruct the electron temperature on fast time scales (similar to 10 kHz). In addition to this functionality, here we show that the ME-SXR system can be used to measure the boundary displacement of the NSTX plasma with a few mm spatial resolution during magnetohydrodyamic (MHD) activity. Boundary displacement measurements can serve to inform theoretical predictions of neoclassical toroidal viscosity, and will be used to investigate other edge phenomena on NSTX-U. For example, boundary measurements using filtered SXR measurements can provide information on pedestal steepness and dynamic evolution leading up to and during edge localized modes (ELMs). Future applications include an assessment of a simplified, filtered SXR edge detection system as well as its suitability for real-time non-magnetic boundary feedback for ELMs, MHD, and equilibrium position control. (C) 2014 AIP Publishing LLC.
C1 [Tritz, K.; Stutman, D.] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
[Diallo, A.; LeBlanc, B. P.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Sabbagh, S.] Columbia Univ, Dept Appl Phys & Math, New York, NY 10027 USA.
RP Tritz, K (reprint author), Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
EM ktritz@pppl.gov
RI Stutman, Dan/P-4048-2015
FU Department of Energy (DoE) [DE-FG02-09ER55012]; PPPL by the DoE
[DE-AC02-09CH11466]
FX The author would like to thank the NSTX team for their assistance and
support with work carried out at the Princeton Plasma Physics
Laboratory. This work is supported by the Department of Energy (DoE)
(Grant No. DE-FG02-09ER55012), and at PPPL by the DoE (Contract No.
DE-AC02-09CH11466).
NR 14
TC 0
Z9 0
U1 2
U2 13
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E401
DI 10.1063/1.4885476
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000149
PM 25430308
ER
PT J
AU Turnbull, D
Moody, JD
Michel, P
Ralph, JE
Divol, L
AF Turnbull, D.
Moody, J. D.
Michel, P.
Ralph, J. E.
Divol, L.
TI Polarimetry of uncoupled light on the NIF
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Polarimetry has been added to the full aperture backscatter diagnostic on the NIF. Wollaston prisms are used to sample a small region of a beam's backscatter, effectively separating it into two linear polarizations, one of which is parallel to the incident beam. A time-averaged measurement of each polarization is obtained by imaging the separated spots off of a scatter plate. Results have improved understanding of crossed beam energy transfer, glint, and sidescatter, and motivated plans to upgrade to a time-resolved polarimeter measuring the full Stokes vector. (C) 2014 AIP Publishing LLC.
C1 [Turnbull, D.] Lawrence Livermore Natl Lab, Natl Ignit Facil, Livermore, CA 94550 USA.
Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Turnbull, D (reprint author), Lawrence Livermore Natl Lab, Natl Ignit Facil, Livermore, CA 94550 USA.
EM turnbull2@llnl.gov
RI Michel, Pierre/J-9947-2012
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344.
NR 6
TC 4
Z9 4
U1 0
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E603
DI 10.1063/1.4886392
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000190
PM 25430349
ER
PT J
AU Wang, ZH
Combs, SK
Baylor, LR
Foust, CR
Lyttle, MS
Meitner, SJ
Rasmussen, DA
AF Wang, Zhehui
Combs, S. K.
Baylor, L. R.
Foust, C. R.
Lyttle, M. S.
Meitner, S. J.
Rasmussen, D. A.
TI Fast imaging of intact and shattered cryogenic neon pellets
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID DISRUPTION MITIGATION; INJECTION; ITER; JET
AB Compact condensed-matter injection technologies are increasingly used in magnetic fusion. One recent application is in disruption mitigation. An imaging system with less-than-100-mu m-and sub-mu s-resolution is described and used to characterize intact and shattered cryogenic neon pellets. Shattered pellets contain fine particles ranging from tens of mu m to about 7 mm. Time-of-flight analyses indicate that pellets could slow down if hitting the wall of the guide tube. Fast high-resolution imaging systems are thus useful to neon and other condensed-matter injector development. (C) 2014 AIP Publishing LLC.
C1 [Wang, Zhehui] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Combs, S. K.; Baylor, L. R.; Foust, C. R.; Lyttle, M. S.; Meitner, S. J.; Rasmussen, D. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Wang, ZH (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM zwang@lanl.gov
FU ORNL [DE-AC05-00OR22725]
FX We thank Nicodemo Calautti (Visual Instrumentation Corp.), Phiroze Daial
(Vision Research), Tsutomu "Tom" Shimada (LANL), and T. Ha (ORNL) for
help/discussion about the imaging system development and Don Rej (LANL)
for encouragement to carry out the work. This work is supported through
a subcontract with ORNL under Contract No. DE-AC05-00OR22725.
NR 9
TC 0
Z9 0
U1 1
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E805
DI 10.1063/1.4886426
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000211
PM 25430370
ER
PT J
AU Widmann, K
Beiersdorfer, P
Magee, EW
Boyle, DP
Kaita, R
Majeski, R
AF Widmann, K.
Beiersdorfer, P.
Magee, E. W.
Boyle, D. P.
Kaita, R.
Majeski, R.
TI High-resolution grazing-incidence grating spectrometer for temperature
measurements of low-Z ions emitting in the 100-300 angstrom spectral
band
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID X-RAY; ELECTRON-BEAM; TRAP
AB We have constructed a high-resolution grazing-incidence spectrometer designed for measuring the ion temperature of low-Z elements, such as Li+ or Li2+, which radiate near 199 angstrom and 135 angstrom, respectively. Based on measurements at the Livermore Electron Beam Ion Trap we have shown that the instrumental resolution is better than 48 m angstrom at the 200 angstrom setting and better than 40 m angstrom for the 135-angstrom range. Such a high spectral resolution corresponds to an instrumental limit for line-width based temperature measurements of about 45 eV for the 199 angstrom Li+ and 65 eV for the 135 angstrom Li2+ lines. Recently obtained survey spectra from the Lithium Tokamak Experiment at the Princeton Plasma Physics Laboratory show the presence of these lithium emission lines and the expected core ion temperature of approximately 70 eV is sufficiently high to demonstrate the feasibility of utilizing our high-resolution spectrometer as an ion-temperature diagnostic. (C) 2014 AIP Publishing LLC.
C1 [Widmann, K.; Beiersdorfer, P.; Magee, E. W.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Boyle, D. P.; Kaita, R.; Majeski, R.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Widmann, K (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM widmann1@llnl.gov
FU (U.S.) Department of Energy (DOE) by Lawrence Livermore National
Laboratory [DE-AC52-07NA27344]; Princeton Plasma Physics Laboratory
[DE-AC02-09CH11466]
FX This work was performed under the auspices of the (U.S.) Department of
Energy (DOE) by Lawrence Livermore National Laboratory under Contract
No. DE-AC52-07NA27344 and the Princeton Plasma Physics Laboratory under
Contract No. DE-AC02-09CH11466.
NR 16
TC 2
Z9 2
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D630
DI 10.1063/1.4894388
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000047
PM 25430206
ER
PT J
AU Williams, GJ
Maddox, BR
Chen, H
Kojima, S
Millecchia, M
AF Williams, G. Jackson
Maddox, Brian R.
Chen, Hui
Kojima, Sadaoki
Millecchia, Matthew
TI Calibration and equivalency analysis of image plate scanners
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB A universal procedure was developed to calibrate image plate scanners using radioisotope sources. Techniques to calibrate scanners and sources, as well as cross-calibrate scanner models, are described to convert image plate dosage into physical units. This allows for the direct comparison of quantitative data between any facility and scanner. An empirical relation was also derived to establish sensitivity response settings for arbitrary gain settings. In practice, these methods may be extended to any image plate scanning system. (C) 2014 AIP Publishing LLC.
C1 [Williams, G. Jackson; Maddox, Brian R.; Chen, Hui] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Kojima, Sadaoki] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan.
[Millecchia, Matthew] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
RP Williams, GJ (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM williams270@llnl.gov
FU U.S. Department of Energy (DOE) by Lawrence Livermore National
Laboratory [DE-AC52-07NA27344]; LLNL LDRD program [12-ERD-066]; U.S.
Department of Energy Office of Inertial Confinement Fusion
[DE-FC52-08NA28302]; University of Rochester; New York State Energy
Research and Development Authority
FX The authors acknowledge Y. Arikawa from ILE, K. Austin, L. Caldeira, J.
Park, and G. Stone from LLNL, and M. Rowland, C. Sorce, and D. Walker
from LLE for experimental support. This work was performed under the
auspices of the U.S. Department of Energy (DOE) by Lawrence Livermore
National Laboratory under Contract No. DE-AC52-07NA27344 and funded by
the LLNL LDRD program (12-ERD-066). Portions of this work were performed
at LLE and supported by the U.S. Department of Energy Office of Inertial
Confinement Fusion under Cooperative Agreement No. DE-FC52-08NA28302,
the University of Rochester, and the New York State Energy Research and
Development Authority. The mention of commercial products does not
represent an endorsement by the authors or their institutions.
NR 9
TC 2
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U1 0
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E604
DI 10.1063/1.4886390
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000191
PM 25430350
ER
PT J
AU Wu, M
Moy, K
Kruschwitz, C
Rochau, G
AF Wu, Ming
Moy, Ken
Kruschwitz, Craig
Rochau, Greg
TI Characterizations of MCP performance in the hard x-ray range (6-25 keV)
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID MICROCHANNEL PLATES
AB MCP detector performance at hard x-ray energies from 6 to 25 keV was recently investigated using NSLS beamline X15A at BNL. Measurements were made with an NSTec Gen-II (H-CA-65) framing camera, based on a Photonis MCP with similar to 10 mu m in diameter pores, similar to 12 mu m center-center spacing, an L/D ratio of 46, and a bias angle of 8 degrees. The MCP characterizations were focused on (1) energy and angle dependent sensitivity, (2) energy and angle dependent spatial resolution, (3) energy dependent gain performance, and (4) energy dependent dynamic range. These measurement corroborated simulation results using a Monte Carlo model that included hard x-ray interactions and the subsequent electron cascade in the MCP. (C) 2014 AIP Publishing LLC.
C1 [Wu, Ming; Rochau, Greg] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Moy, Ken] NSTec, Special Technol Labs, Santa Barbara, CA 93111 USA.
[Kruschwitz, Craig] Natl Secur Technol LLC, Los Alamos Operat, Los Alamos, NM 87544 USA.
RP Wu, M (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM minwu@sandia.gov
FU U.S. D.O.E. [DE-AC04-94AL85000, DE-AC52-06NA25946]
FX This work was supported by the U.S. D.O.E. Contract Nos.
DE-AC04-94AL85000 and DE-AC52-06NA25946.
NR 7
TC 1
Z9 2
U1 0
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D607
DI 10.1063/1.4890293
PG 5
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000024
PM 25430183
ER
PT J
AU Wurden, GA
Oertel, JA
Evans, TE
AF Wurden, G. A.
Oertel, J. A.
Evans, T. E.
TI An in situ runaway electron diagnostic for DIII-D
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
ID X-RAY IMAGER; SYNCHROTRON-RADIATION; DISRUPTIONS; TRANSPORT
AB We are designing a new diagnostic based on laser inverse Compton scattering to study the dynamics of runaway electron formation during killer-pellet triggered disruptions in DIII-D, and their subsequent loss. We can improve the expected S/N ratio by using a high-intensity short-pulse laser combined with gated x-ray imagers. With 80 ps sampling, time-of-flight spatial resolution within the laser chord can be obtained. We will measure the time-resolved spatial profile and energy distribution of the runaway electrons while they are in the core of the tokamak plasma. (C) 2014 AIP Publishing LLC.
C1 [Wurden, G. A.; Oertel, J. A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Evans, T. E.] Gen Atom Co, San Diego, CA 92121 USA.
RP Wurden, GA (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM wurden@lanl.gov
RI Wurden, Glen/A-1921-2017
OI Wurden, Glen/0000-0003-2991-1484
FU US Department of Energy, Office of Science, Office of Fusion Energy
Sciences; LANS [DE-AC52-06NA25396]; GA [DE-FC02-04ER54698]
FX This work is supported by the US Department of Energy, Office of
Science, Office of Fusion Energy Sciences, and LANS Contract No.
DE-AC52-06NA25396 and GA Contract No. DE-FC02-04ER54698, and was
inspired by a DAHRT discussion with Josh Coleman (LANL).
NR 20
TC 0
Z9 0
U1 1
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E111
DI 10.1063/1.4890398
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000131
PM 25430290
ER
PT J
AU Younkin, TR
Biewer, TM
Klepper, CC
Marcus, C
AF Younkin, T. R.
Biewer, T. M.
Klepper, C. C.
Marcus, C.
TI Description of the prototype diagnostic residual gas analyzer for ITER
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB The diagnostic residual gas analyzer (DRGA) system to be used during ITER tokamak operation is being designed at Oak Ridge National Laboratory to measure fuel ratios (deuterium and tritium), fusion ash (helium), and impurities in the plasma. The eventual purpose of this instrument is for machine protection, basic control, and physics on ITER. Prototyping is ongoing to optimize the hardware setup and measurement capabilities. The DRGA prototype is comprised of a vacuum system and measurement technologies that will overlap to meet ITER measurement requirements. Three technologies included in this diagnostic are a quadrupole mass spectrometer, an ion trap mass spectrometer, and an optical penning gauge that are designed to document relative and absolute gas concentrations. (C) 2014 AIP Publishing LLC.
C1 [Younkin, T. R.; Biewer, T. M.; Klepper, C. C.; Marcus, C.] Oak Ridge Natl Lab, Fus & Mat Nucl Syst Div, Oak Ridge, TN 37831 USA.
[Younkin, T. R.] Georgia Inst Technol, Woodruff Sch Mech Engn, Nucl & Radiol Engn Program, Atlanta, GA 30332 USA.
RP Younkin, TR (reprint author), Oak Ridge Natl Lab, Fus & Mat Nucl Syst Div, Oak Ridge, TN 37831 USA.
EM tyounkin@gatech.edu
FU US. D.O.E. [DE-AC05-00OR22725]
FX This work was supported by the US. D.O.E. Contract No.
DE-AC05-00OR22725.
NR 7
TC 1
Z9 1
U1 1
U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11E816
DI 10.1063/1.4892157
PG 4
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000222
PM 25430381
ER
PT J
AU Zhu, Y
Zhao, Z
Liu, WD
Xie, J
Hu, X
Muscatello, CM
Domier, CW
Luhmann, NC
Chen, M
Ren, X
Tobias, BJ
Zhuang, G
Yang, Z
AF Zhu, Y.
Zhao, Z.
Liu, W. D.
Xie, J.
Hu, X.
Muscatello, C. M.
Domier, C. W.
Luhmann, N. C., Jr.
Chen, M.
Ren, X.
Tobias, B. J.
Zhuang, G.
Yang, Z.
TI Optics design for J-TEXT ECE imaging with field curvature adjustment
lens
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 20th Topical Conference on High-Temperature Plasma Diagnostics
CY JUN 01-05, 2014
CL Atlanta, GA
AB Significant progress has been made in the imaging and visualization of magnetohydrodynamic and microturbulence phenomena in magnetic fusion plasmas. Of particular importance has been microwave electron cyclotron emission imaging (ECEI) for imaging T-e fluctuations. Key to the success of ECEI is a large Gaussian optics system constituting a major portion of the focusing of the microwave radiation from the plasma to the detector array. Both the spatial resolution and observation range are dependent upon the imaging optics system performance. In particular, it is critical that the field curvature on the image plane is reduced to decrease crosstalk between vertical channels. The receiver optics systems for two ECEI on the J-TEXT device have been designed to ameliorate these problems and provide good performance with additional field curvature adjustment lenses with a meniscus shape to correct the aberrations from several spherical surfaces. (C) 2014 AIP Publishing LLC.
C1 [Zhu, Y.; Zhao, Z.; Liu, W. D.; Xie, J.] Univ Sci & Technol China, Sch Phys, Hefei 230026, Anhui, Peoples R China.
[Hu, X.; Muscatello, C. M.; Domier, C. W.; Luhmann, N. C., Jr.; Chen, M.; Ren, X.] Univ Calif Davis, Davis, CA 95616 USA.
[Tobias, B. J.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Zhuang, G.; Yang, Z.] Huazhong Univ Sci & Technol, Coll Elect & Elect Engn, Wuhan 430074, Peoples R China.
RP Xie, J (reprint author), Univ Sci & Technol China, Sch Phys, Hefei 230026, Anhui, Peoples R China.
EM jlxie@ustc.edu.cn
RI Liu, Wandong/K-6119-2012
FU National Magnetic Confinement Fusion Energy Program of China
[2009GB107001, 2014GB109002]; U.S. DOE [DE-FG02-99ER54531]
FX This work was supported by National Magnetic Confinement Fusion Energy
Program of China under Contract Nos. 2009GB107001 and 2014GB109002, and
by the U.S. DOE Grant No. DE-FG02-99ER54531.
NR 10
TC 5
Z9 5
U1 0
U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD NOV
PY 2014
VL 85
IS 11
AR 11D854
DI 10.1063/1.4893352
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA AU5KO
UT WOS:000345646000108
PM 25430267
ER
PT J
AU Ma, Q
Chen, X
Liu, C
Mao, XZ
Zhang, HY
Ji, F
Wu, CG
Xi, Y
AF Ma Qin
Chen Xin
Liu Chao
Mao XiZeng
Zhang HanYuan
Ji Fei
Wu ChunGuo
Xu Ying
TI Understanding the commonalities and differences in genomic organizations
across closely related bacteria from an energy perspective
SO SCIENCE CHINA-LIFE SCIENCES
LA English
DT Article
DE genomic organization; transcription activation frequency; pathway
modeling; comparative genomics analysis
ID ESCHERICHIA-COLI K-12; SEQUENCE; GENES; COMMENSAL; O157H7; REVEAL;
IDENTIFICATION; INFORMATION; ARRANGEMENT; EXPRESSION
AB The availability of a large number of sequenced bacterial genomes facilitates in-depth studies about why genes (operons) in a bacterial genome are globally organized the way they are. We have previously discovered that (the relative) transcription-activation frequencies among different biological pathways encoded in a genome have a dominating role in the global arrangement of operons. One complicating factor in such a study is that some operons may be involved in multiple pathways with different activation frequencies. A quantitative model has been developed that captures this information, which tends to be minimized by the current global arrangement of operons in a bacterial (and archaeal) genome compared to possible alternative arrangements. A study is carried out here using this model on a collection of 52 closely related Escherichia coli genomes, which revealed interesting new insights about how bacterial genomes evolve to optimally adapt to their environments through adjusting the (relative) genomic locations of the encoding operons of biological pathways once their utilization and hence transcription activation frequencies change, to maintain the above energy-efficiency property. More specifically we observed that it is the frequencies of the transcription activation of pathways relative to those of the other encoded pathways in an organism as well as the variation in the activation frequencies of a specific pathway across the related genomes that play a key role in the observed commonalities and differences in the genomic organizations of genes (and operons) encoding specific pathways across different genomes.
C1 [Ma Qin; Chen Xin; Liu Chao; Mao XiZeng; Zhang HanYuan; Ji Fei; Wu ChunGuo; Xu Ying] Univ Georgia, Dept Biochem & Mol Biol, Computat Syst Biol Lab, Athens, GA 30602 USA.
[Ma Qin; Chen Xin; Liu Chao; Mao XiZeng; Zhang HanYuan; Ji Fei; Wu ChunGuo; Xu Ying] Univ Georgia, Inst Bioinformat, Athens, GA 30602 USA.
[Ma Qin; Mao XiZeng; Ji Fei; Xu Ying] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN 37831 USA.
[Chen Xin; Zhang HanYuan; Wu ChunGuo; Xu Ying] Jilin Univ, Coll Comp Sci & Technol, Changchun 130012, Peoples R China.
[Liu Chao] Shandong Univ, Prov Hosp, Jinan 250021, Peoples R China.
RP Xi, Y (reprint author), Univ Georgia, Dept Biochem & Mol Biol, Computat Syst Biol Lab, Athens, GA 30602 USA.
EM xyn@bmb.uga.edu
RI Ma, Qin/O-1525-2013
OI Ma, Qin/0000-0002-3264-8392
FU National Science Foundation [NSF DEB-0830024, NSF MCB-0958172]; US
Department of Energy's BioEnergy Science Center grant through the Office
of Biological and Environmental Research; Office of Biological and
Environmental Research in the DOE Office of Science; US Department of
Energy's BioEnergy Science Center
FX This work was supported in part by National Science Foundation (#NSF
DEB-0830024 and NSF MCB-0958172) and by the US Department of Energy's
BioEnergy Science Center grant through the Office of Biological and
Environmental Research. The BioEnergy Science Center is a US Department
of Energy Bioenergy Research Center supported by the Office of
Biological and Environmental Research in the DOE Office of Science.
Funding for open access charge: US Department of Energy's BioEnergy
Science Center.
NR 55
TC 2
Z9 2
U1 0
U2 9
PU SCIENCE PRESS
PI BEIJING
PA 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
SN 1674-7305
EI 1869-1889
J9 SCI CHINA LIFE SCI
JI Sci. China-Life Sci.
PD NOV
PY 2014
VL 57
IS 11
BP 1121
EP 1130
DI 10.1007/s11427-014-4734-y
PG 10
WC Biology
SC Life Sciences & Biomedicine - Other Topics
GA AU3AF
UT WOS:000345484700009
PM 25234108
ER
PT J
AU Sumpter, BG
Liang, LB
Nicolai, A
Meunier, V
AF Sumpter, Bobby G.
Liang, Liangbo
Nicolai, Adrien
Meunier, Vincent
TI Interfacial Properties and Design of Functional Energy Materials
SO ACCOUNTS OF CHEMICAL RESEARCH
LA English
DT Review
ID SELF-ASSEMBLED MONOLAYERS; QUASI-2-DIMENSIONAL ORGANIC SUPERCONDUCTORS;
SURFACE-CONFINED POLYMERIZATION; GRAPHENE NANORIBBONS; METAL-SURFACES;
BORON-NITRIDE; MOLECULES; INSIGHT; INTERMEDIATE; CONDUCTANCE
AB CONSPECTUS: The vital importance of energy to society continues to demand a relentless pursuit of energy responsive materials that can bridge fundamental chemical structures at the molecular level and achieve improved functionality and performance. This demand can potentially be realized by harnessing the power of self-assembly, a spontaneous process where molecules or much larger entities form ordered aggregates as a consequence of predominately noncovalent (weak) interactions. Self-assembly is the key to bottom-up design of molecular devices, because the nearly atomic-level control is very difficult to realize in a top-down, for example, lithographic, approach. However, while function in simple systems such as single crystals can often be evaluated a priori, predicting the function of the great variety of self-assembled molecular architectures is complicated by the lack of understanding and control over nanoscale interactions, mesoscale architectures, and macroscale order. To establish a foundation toward delivering practical solutions, it is critical to develop an understanding of the chemical and physical mechanisms responsible for the self-assembly of molecular and hybrid materials on various support substrates.
Typical molecular self-assembly involves noncovalent intermolecular and substrate-molecule interactions. These interactions remain poorly understood, due to the combination of many-body interactions compounded by local or collective influences from the substrate atomic lattice and electronic structure. Progress toward unraveling the underlying physicochemical processes that control the structure and macroscopic physical, chemical, mechanical, electrical, and transport properties of materials increasingly requires tight integration of theory, modeling, and simulation with precision synthesis, advanced experimental characterization, and device measurements. Theory, modeling, and simulation can accelerate the process of materials understanding and design by providing atomic level understanding of the underlying physicochemical phenomena (illuminating connections between experiments). It can also provide the ability to explore new materials and conditions before they are realized in the laboratory. With tight integration and feedback with experiment, it becomes feasible to identify promising materials or processes for targeted energy applications.
In this Account, we highlight recent advances and success in using an integrated approach based on electronic structure simulations and scanning probe microscopy techniques to study and design functional materials formed from the self-assembly of molecules into supramolecular or polymeric architectures on substrates.
C1 [Sumpter, Bobby G.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Sumpter, Bobby G.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
[Liang, Liangbo; Nicolai, Adrien; Meunier, Vincent] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA.
RP Sumpter, BG (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
EM sumpterbg@ornl.gov; meuniv@rpi.edu
RI Meunier, Vincent/F-9391-2010; Liang, Liangbo/H-4486-2011; Sumpter,
Bobby/C-9459-2013
OI Meunier, Vincent/0000-0002-7013-179X; Liang,
Liangbo/0000-0003-1199-0049; Sumpter, Bobby/0000-0001-6341-0355
FU Center for Nanophase Materials Sciences - Oak Ridge National Laboratory
by the Division of Scientific User Facilities, Basic Energy Sciences,
U.S. Department of Energy; Office of Naval Research
FX B.G.S. and V.M. gratefully acknowledge the support of the Center for
Nanophase Materials Sciences, which is sponsored at Oak Ridge National
Laboratory by the Division of Scientific User Facilities, Basic Energy
Sciences, U.S. Department of Energy. A.N. and V.M. also acknowledge the
Office of Naval Research for support.
NR 74
TC 6
Z9 6
U1 15
U2 102
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0001-4842
EI 1520-4898
J9 ACCOUNTS CHEM RES
JI Accounts Chem. Res.
PD NOV
PY 2014
VL 47
IS 11
SI SI
BP 3395
EP 3405
DI 10.1021/ar500180h
PG 11
WC Chemistry, Multidisciplinary
SC Chemistry
GA AT9QU
UT WOS:000345262200022
PM 24963787
ER
PT J
AU Huang, H
Yoo, S
Qin, H
Yu, DT
AF Huang, Hao
Yoo, Shinjae
Qin, Hong
Yu, Dantong
TI Physics-Based Anomaly Detection Defined on Manifold Space
SO ACM TRANSACTIONS ON KNOWLEDGE DISCOVERY FROM DATA
LA English
DT Article
DE Anomaly detection; Laplace operator; heat diffusion; quantum mechanics
ID DIFFUSION MAPS; QUANTUM-MECHANICS
AB Current popular anomaly detection algorithms are capable of detecting global anomalies but often fail to distinguish local anomalies from normal instances. Inspired by contemporary physics theory (i.e., heat diffusion and quantum mechanics), we propose two unsupervised anomaly detection algorithms. Building on the embedding manifold derived from heat diffusion, we devise Local Anomaly Descriptor (LAD), which faithfully reveals the intrinsic neighborhood density. It uses a scale-dependent umbrella operator to bridge global and local properties, which makes LAD more informative within an adaptive scope of neighborhood. To offer more stability of local density measurement on scaling parameter tuning, we formulate Fermi Density Descriptor (FDD), which measures the probability of a fermion particle being at a specific location. By choosing the stable energy distribution function, FDD steadily distinguishes anomalies from normal instances with any scaling parameter setting. To further enhance the efficacy of our proposed algorithms, we explore the utility of anisotropic Gaussian kernel (AGK), which offers better manifold-aware affinity information. We also quantify and examine the effect of different Laplacian normalizations for anomaly detection. Comprehensive experiments on both synthetic and benchmark datasets verify that our proposed algorithms outperform the existing anomaly detection algorithms.
C1 [Huang, Hao; Qin, Hong] SUNY Stony Brook, Dept Comp Sci, Stony Brook, NY 11794 USA.
[Yoo, Shinjae; Yu, Dantong] Brookhaven Natl Lab, Computat Sci Ctr, Upton, NY 11973 USA.
RP Huang, H (reprint author), SUNY Stony Brook, Dept Comp Sci, Stony Brook, NY 11794 USA.
EM hao.huang.1@stonybrook.edu
FU National Science Foundation of the United States [IIS-0949467,
IIS-1047715, IIS-1049448]; National Natural Science Foundation of China
[61190120, 61190121, 61190125]; U.S. Department of Energy [DE-SC0003361]
FX This research is supported in part by the National Science Foundation of
the United States (No. IIS-0949467, IIS-1047715, and IIS-1049448) and
the National Natural Science Foundation of China (No. 61190120,
61190121, and 61190125). It is also supported by the U.S. Department of
Energy, Grant No. DE-SC0003361, funded through the American Recovery and
Reinvestment Act of 2009.
NR 49
TC 1
Z9 1
U1 1
U2 3
PU ASSOC COMPUTING MACHINERY
PI NEW YORK
PA 2 PENN PLAZA, STE 701, NEW YORK, NY 10121-0701 USA
SN 1556-4681
EI 1556-472X
J9 ACM T KNOWL DISCOV D
JI ACM Trans. Knowl. Discov. Data
PD NOV
PY 2014
VL 9
IS 2
AR 14
DI 10.1145/2641574
PG 39
WC Computer Science, Information Systems; Computer Science, Software
Engineering
SC Computer Science
GA AT9UK
UT WOS:000345271600007
ER
PT J
AU Zhang, RQ
McEwen, JS
Kollar, M
Gao, F
Wang, YL
Szanyi, J
Peden, CHF
AF Zhang, Renqin
McEwen, Jean-Sabin
Kollar, Marton
Gao, Feng
Wang, Yilin
Szanyi, Janos
Peden, Charles H. F.
TI NO Chemisorption on Cu/SSZ-13: A Comparative Study from Infrared
Spectroscopy and DFT Calculations
SO ACS CATALYSIS
LA English
DT Article
DE infrared spectroscopy; DFT; NO chemisorption; oxidation state;
Cu/SSZ-13; dehydration; Bronsted acid site
ID SELECTIVE CATALYTIC-REDUCTION; CU-EXCHANGED ZEOLITES; AUGMENTED-WAVE
METHOD; SSZ-13 ZEOLITE; NITROGEN-OXIDES; ACTIVE-SITES; CU-SSZ-13;
AMMONIA; NH3; ABSORPTION
AB The locations and energies of Cu ions in a Cu/SSZ-13 zeolite catalyst were investigated by density functional theory (DFT) calculations. For naked Cu2+ ions (i.e., Cu2+ ions with no ligands in their coordination spheres other than zeolite lattice oxygen atoms), the more energetically favorable sites are within a 6-membered ring. However, with the presence of various adsorbates, the energy difference between 6- and 8-membered ring locations greatly diminishes. Specifically, Cu2+ ions are substantially stabilized by -OH ligands (as [Cu-II(OH)](+)), making the extra-framework sites in an 8-membered ring energetically more favorable than 6-membered ring sites. Under fully dehydrated high vacuum conditions with different Si/Al and Cu/Al ratios, three chemisorbed NO species coexist upon exposure of NO to Cu/SSZ-13: NO+, Cu2+NO, and Cu+NO. The relative signal intensities for these bands vary greatly with Si/Al ratios. The vibrational frequency of chemisorbed NO was found to be very sensitive to the location of Cu2+ ions. On the one hand, with the aid from DFT calculations, the nature for these vibrations can be assigned in detail. On the other hand, the relative intensities for various Cu-2+NO species provide a good measure of the nature of Cu2+ ions as functions of Si/Al and Cu/Al ratios and the presence of humidity. These new findings cast doubt on the generally accepted proposal that only Cu2+ ions located in 6-membered rings are catalytically active for NH3SCR.
C1 [Zhang, Renqin; McEwen, Jean-Sabin] Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA.
[McEwen, Jean-Sabin] Washington State Univ, Dept Phys & Astron, Pullman, WA 99164 USA.
[McEwen, Jean-Sabin] Washington State Univ, Dept Chem, Pullman, WA 99164 USA.
[Kollar, Marton; Gao, Feng; Wang, Yilin; Szanyi, Janos; Peden, Charles H. F.] Pacific NW Natl Lab, Inst Integrated Catalysis, Richland, WA 99352 USA.
RP McEwen, JS (reprint author), Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA.
EM js.mcewen@wsu.edu; chuck.peden@pnnl.gov
RI Zhang, Renqin/Q-2789-2015
OI Zhang, Renqin/0000-0002-4489-2050
FU Voiland School of Chemical Engineering and Bioengineering; USDA/NIFA
through Hatch Project [WNP00807]; U.S. Department of Energy (DOE),
Office of Energy Efficiency and Renewable Energy, Vehicle Technologies
Program; Department of Energy's Office of Biological and Environmental
Research
FX For the authors from Washington State University, this work was
supported by institutional funds provided to J.-S.M. from the Voiland
School of Chemical Engineering and Bioengineering. This work was
partially funded by USDA/NIFA through Hatch Project #WNP00807 titled:
"Fundamental and Applied Chemical and Biological Catalysts to Minimize
Climate Change, Create a Sustainable Energy Future, and Provide a Safer
Food Supply". For those of us from Pacific Northwest National Laboratory
(PNNL), financial support was provided by the U.S. Department of Energy
(DOE), Office of Energy Efficiency and Renewable Energy, Vehicle
Technologies Program. A portion of the research (including both computer
time for DFT and experimental FTIR work) was performed using EMSL, a
national scientific user facility sponsored by the Department of
Energy's Office of Biological and Environmental Research and located at
PNNL. PNNL is a multiprogram national laboratory operated for the U.S.
DOE by Battelle. We also thank Ms. Kathy Helling for her useful comments
on the manuscript.
NR 41
TC 26
Z9 27
U1 11
U2 74
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 2155-5435
J9 ACS CATAL
JI ACS Catal.
PD NOV
PY 2014
VL 4
IS 11
BP 4093
EP 4105
DI 10.1021/cs500563s
PG 13
WC Chemistry, Physical
SC Chemistry
GA AT0QD
UT WOS:000344639300036
ER
PT J
AU Xia, F
Zhao, J
Etschmann, BE
Brugger, J
Garvey, CJ
Rehm, C
Lemmel, H
Ilvasky, J
Han, YS
Pring, A
AF Xia, Fang
Zhao, Jing
Etschmann, Barbara E.
Brugger, Joel
Garvey, Christopher J.
Rehm, Christine
Lemmel, Hartmut
Ilvasky, Jan
Han, Young-Soo
Pring, Allan
TI Characterization of porosity in sulfide ore minerals: A USANS/SANS study
SO AMERICAN MINERALOGIST
LA English
DT Article
DE SANS; USANS; sulfide ore minerals; porosity; mineral replacement
reactions
ID ANGLE NEUTRON-SCATTERING; X-RAY-SCATTERING; ST PETER SANDSTONE;
HYDROTHERMAL CONDITIONS; REPLACEMENT REACTIONS; SUPERGENE ALTERATION;
WESTERN-AUSTRALIA; PYRITE; TRANSFORMATION; PENTLANDITE
AB Porosity plays a key role in the formation and alteration of sulfide ore minerals, yet our knowledge of the nature and formation of the residual pores is very limited. Herein, we report the application of ultra-small-angle neutron scattering and small-angle neutron scattering (USANS/SANS) to assess the porosity in five natural sulfide minerals (violarite, marcasite, pyrite, chalcopyrite, and bornite) possibly formed by hydrothermal mineral replacement reactions and two synthetic sulfide minerals (violarite and marcasite) prepared experimentally by mimicking natural hydrothermal conditions. USANS/SANS data showed very different pore size distributions for these minerals. Natural violarite and marcasite tend to possess less pores in the small size range (<100 nm) compared with their synthetic counterparts. This phenomenon is consistent with a higher degree of pore healing or diagenetic compaction experienced by the natural violarite and marcasite. Surprisingly, nanometer-sized (<20 nm) pores were revealed for a natural pyrite cube from La Rioga, Spain, and the sample has a pore volume fraction of similar to 7.7%. Both chalcopyrite and bornite from the massive sulfide assemblage of the Olympic Dam deposit in Roxby Downs, South Australia, were found to be porous with a similar pore volume fraction (similar to 15%), but chalcopyrite tends to have a higher proportion of nanometer-size pores centered at similar to 4 nm while bomite tends to have a broader pore size distribution. The specific surface area is generally low for these minerals ranging from 0.94 to 6.28 m(2)/g, and the surfaces are generally rough as surface fractal behavior was observed for all these minerals. This investigation has demonstrated that USANS/SANS is a very useful tool for analyzing porosity in ore minerals. We believe that with this quantified porosity information a deeper understanding of the complex fluid flow behavior within the porous minerals can be expected.
C1 [Xia, Fang; Zhao, Jing; Etschmann, Barbara E.; Brugger, Joel; Pring, Allan] S Australian Museum, Dept Mineral, Adelaide, SA 5000, Australia.
[Xia, Fang; Etschmann, Barbara E.; Brugger, Joel] Univ Adelaide, Sch Earth & Environm Sci, Adelaide, SA 5005, Australia.
[Xia, Fang] CSIRO Mat Sci & Engn, Clayton, Vic 3168, Australia.
[Zhao, Jing] Univ Adelaide, Sch Chem Engn, Adelaide, SA 5005, Australia.
[Garvey, Christopher J.; Rehm, Christine] Australian Nucl Sci & Technol Org, Bragg Inst, Kirrawee Dc, NSW 2232, Australia.
[Lemmel, Hartmut] Inst Laue Langevin, F-38000 Grenoble, France.
[Lemmel, Hartmut] Vienna Univ Technol, Atominst, A-1020 Vienna, Austria.
[Ilvasky, Jan] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Han, Young-Soo] Korea Atom Energy Res Inst, Div Neutron Sci, Taejon 305353, South Korea.
[Pring, Allan] Flinders Univ S Australia, Sch Chem & Phys Sci, Adelaide, SA 5001, Australia.
RP Xia, F (reprint author), S Australian Museum, Dept Mineral, N Terrace, Adelaide, SA 5000, Australia.
EM allan.pring@flinders.edu.au
RI Garvey, Christopher/E-6475-2010; Brugger, Joel/C-7113-2008
OI Garvey, Christopher/0000-0001-6496-7008; Brugger,
Joel/0000-0003-1510-5764
FU Australian Institute of Nuclear Science and Engineering (AINSE);
National Research Foundation of Korea (NRF) - Korean government
[NRF-2001-0031934, NRF-2012M2A2A6004260]; Australian Research Council
[DP1095069]
FX We appreciate the assistance of Inna Lykova and Gujie Qian with sample
preparation, Tae-Hwan Kim from Korea Atomic Energy Research Institute
(KAERI) for beamline setup, Australian Institute of Nuclear Science and
Engineering (AINSE) for providing travel funding for SANS experiments at
Australian Nuclear Science and Technology Organisation (ANSTO) and at
KAERI. We also acknowledge the Atominstitut (Vienna University of
Technology) for providing USANS beam time at Institut Laue-Langevin
(ILL), and ANSTO and KAERI user offices for assistance with beam time
scheduling. Operation of the 40 m SANS instrument at HANARO was
supported by the National Research Foundation of Korea (NRF) grant
funded by the Korean government (NRF-2001-0031934 and
NRF-2012M2A2A6004260). We appreciate associate editor Daniel Harlov and
two anonymous reviewers for their constructive comments. This work is
funded by Australian Research Council (DP1095069).
NR 59
TC 2
Z9 2
U1 1
U2 17
PU MINERALOGICAL SOC AMER
PI CHANTILLY
PA 3635 CONCORDE PKWY STE 500, CHANTILLY, VA 20151-1125 USA
SN 0003-004X
EI 1945-3027
J9 AM MINERAL
JI Am. Miner.
PD NOV-DEC
PY 2014
VL 99
IS 11-12
BP 2398
EP 2404
DI 10.2138/am-2014-4845
PG 7
WC Geochemistry & Geophysics; Mineralogy
SC Geochemistry & Geophysics; Mineralogy
GA AT6OH
UT WOS:000345058200028
ER
PT J
AU Hyun, SP
Davis, JA
Hayes, KF
AF Hyun, Sung Pil
Davis, James A.
Hayes, Kim F.
TI Abiotic U(VI) reduction by aqueous sulfide
SO APPLIED GEOCHEMISTRY
LA English
DT Article
ID RAY-ABSORPTION SPECTROSCOPY; URANIUM(VI) REDUCTION; IMMOBILIZATION;
GROUNDWATER; MACKINAWITE; IRON; COMPLEXES; CARBONATE; GOETHITE; KINETICS
AB Reactions with aqueous sulfide are important in determining uranium (U) geochemistry under sulfate reducing conditions. This paper reports on abiotic reduction of U(VI) by aqueous sulfide under a range of experimental conditions using batch reactors. Dissolved U concentration was measured as a function of time to study the effects of chemical variables including pH, U(VI), S(-II), total dissolved carbonate (CARB = H2CO3* + HCO3 + CO32 ), and Ca2+ concentration on the U(VI) reduction rate. Solid phase reaction products were characterized using X-ray diffraction, X-ray absorption spectroscopy, and transmission electron microscopy. The chemical variables had impacts on the solid phase U(VI) reaction products as well as the reduction rates by aqueous sulfide. The solid U reaction product at circumneutral pH was identified as uraninite (UO2+x(s)). Under basic pH conditions, whether a precipitate occurred depended on Ca2+ and CARB concentrations. U(VI) reduction was faster under higher S(-II) concentrations but was slowed by increased dissolved Ca2+ or CARB concentration. In the absence of dissolved CARB and Ca2+, a rapid decrease in dissolved U concentration occurred at circumneutral pH, while virtually no decrease was observed at pH 10.7 within the experimental timeframe of two days. The U(VI) reduction rate was proportional to the total concentration of free uranyl plus its hydrolysis complexes even at minor to trace concentrations. Dissolved Ca2+ and CARB slow abiotic U(VI) reduction by forming stable Ca-U(VI)-carbonato soluble complexes that are resistant to reaction with aqueous sulfide. U(VI) reduction was slow in a synthetic solution representative of groundwater at a uranium mill tailings site. This study illustrates that abiotic U reduction by aqueous sulfide can significantly vary under typical ranges of chemical conditions in groundwater and newly demonstrates the importance of dissolved Ca2+ in the abiotic U(VI) reduction by aqueous sulfide. The results contribute to our understanding of the impact of sulfate reducing conditions on U speciation in groundwater systems undergoing bioreduction conversion of U(VI) to less mobile U(IV) solid phases. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Hyun, Sung Pil; Hayes, Kim F.] Univ Michigan, Dept Civil & Environm Engn, Ann Arbor, MI 48109 USA.
[Hyun, Sung Pil] Korea Inst Geosci & Mineral Resources, Groundwater Dept, Taejon 305350, South Korea.
[Davis, James A.] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA USA.
RP Hyun, SP (reprint author), Korea Inst Geosci & Mineral Resources, 124 Gwahang No, Taejon 305350, South Korea.
EM sphyun@kigam.re.kr; jadavis@lbl.gov; ford@umich.edu
RI Davis, James/G-2788-2015
FU U.S. Department of Energy (DOE) Office of Science, Environmental
Remediation Sciences Program (ERSP); KIGAM's Basic Research Project
[14-3218]; DOE Office of Biological and Environmental Research; National
Institutes of Health, National Center for Research Resources, Biomedical
Technology Program [P41RR001209]
FX This research was funded by the U.S. Department of Energy (DOE) Office
of Science, Environmental Remediation Sciences Program (ERSP) via two
projects "The Integrated Field-scale Subsurface Research Challenge
(IFRC) Site at Rifle, Colorado, USA" and "Assessing the Role of Iron
Sulfides in the Long Term Sequestration of Uranium by Sulfate-Reducing
Bacteria," and in part by KIGAM's Basic Research Project (14-3218).
Portions of this research were carried out at the Stanford Synchrotron
Radiation Lightsource, a Directorate of SLAC National Accelerator
Laboratory and an Office of Science User Facility operated for the U.S.
Department of Energy 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 (P41RR001209).
NR 41
TC 4
Z9 4
U1 4
U2 25
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0883-2927
J9 APPL GEOCHEM
JI Appl. Geochem.
PD NOV
PY 2014
VL 50
BP 7
EP 15
DI 10.1016/j.apgeochem.2014.07.021
PG 9
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA AT4YH
UT WOS:000344948100002
ER
PT J
AU Visser, A
Fourre, E
Barbecot, F
Aquilina, L
Labasque, T
Vergnaud, V
Esser, BK
AF Visser, Ate
Fourre, Elise
Barbecot, Florent
Aquilina, Luc
Labasque, Thierry
Vergnaud, Virginie
Esser, Bradley K.
CA Participating Labs
TI Intercomparison of tritium and noble gases analyses, H-3/He-3 ages and
derived parameters excess air and recharge temperature
SO APPLIED GEOCHEMISTRY
LA English
DT Article
ID HELIUM-ISOTOPES; SHALLOW GROUNDWATER; TRITIOGENIC HE-3; NATURAL-WATERS;
SAMPLES; PALEOTEMPERATURE; VALIDATION; AQUIFER; NEON
AB Groundwater age dating with the tritium-helium (H-3/He-3) method has become a powerful tool for hydrogeologists. The uncertainty of the apparent H-3/He-3 age depends on the analytical precision of the H-3 measurement and the uncertainty of the tritiogenic He-3 component. The goal of this study, as part of the groundwater age-dating interlaboratory comparison exercise, was to quantify the analytical uncertainty of the H-3 and noble gas measurements and to assess whether they meet the requirements for H-3/He-3 dating and noble gas paleotemperature reconstruction.
Samples for the groundwater dating intercomparison exercise were collected on 1 February, 2012, from three previously studied wells in the Paris Basin (France). Fourteen laboratories participated in the intercomparison for tritium analyses and ten laboratories participated in the noble gas intercomparison. Not all laboratories analyzed samples from every borehole. The reproducibility of the tritium measurements was 13.5%.
The reproducibility of the He-3/He-4 ratio and He-4, Ne, Ar, Kr and Xe concentrations was 1.4%, 1.8%, 1.5%, 2.2%, 2.9%, and 2.4% respectively.
The uncertainty of the tritium and noble gas measurements results in a typical H-3/He-3 age precision of better than 2.5 years in this case. However, the measurement uncertainties for the noble gas concentrations are insufficient to distinguish the appropriate excess air model if the measured helium concentration is not included. While the analytical uncertainty introduces an unavoidable source of uncertainty in the 3H/3He apparent age estimate, other sources of uncertainty are often much greater and less well defined than the analytical uncertainty. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Visser, Ate; Esser, Bradley K.] Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA 94550 USA.
[Fourre, Elise] CEA Orme Merisiers, LSCE, F-91191 Gif Sur Yvette, France.
[Barbecot, Florent] Univ Quebec, Geotop, Montreal, PQ H3C 3P8, Canada.
[Aquilina, Luc; Labasque, Thierry; Vergnaud, Virginie] Geosci Rennes, OSUR, F-35042 Rennes, France.
RP Visser, A (reprint author), Lawrence Livermore Natl Lab, Div Chem Sci, 7000 East Ave, Livermore, CA 94550 USA.
EM visser3@llnl.gov; Elise.Fourre@lsce.ipsl.fr; barbecot.florent@uqam.ca;
luc.aquilina@univ-rennes1.fr; thierry.labasque@univ-rennes1.fr;
virginie.vergnaud@univ-rennes1.fr; esser1@llnl.gov
RI Visser, Ate/G-8826-2012
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX Part of this work was performed under the auspices of the U.S.
Department of Energy by Lawrence Livermore National Laboratory under
Contract DE-AC52-07NA27344. LLNL-JRNL-640319.
NR 31
TC 10
Z9 10
U1 0
U2 20
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0883-2927
J9 APPL GEOCHEM
JI Appl. Geochem.
PD NOV
PY 2014
VL 50
BP 130
EP 141
DI 10.1016/j.apgeochem.2014.03.005
PG 12
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA AT4YH
UT WOS:000344948100014
ER
PT J
AU Massoudieh, A
Visser, A
Sharifi, S
Broers, HP
AF Massoudieh, Arash
Visser, Ate
Sharifi, Soroosh
Broers, Hans Peter
TI A Bayesian modeling approach for estimation of a shape-free groundwater
age distribution using multiple tracers
SO APPLIED GEOCHEMISTRY
LA English
DT Article
ID ATLANTIC COASTAL-PLAIN; ENVIRONMENTAL TRACERS; HYDROLOGIC TRACERS; SCALE
DISPERSION; TRANSIT-TIME; AQUIFER; TRANSPORT; TRITIUM; AR-39; ISOTOPES
AB Due to the mixing of groundwaters with different ages in aquifers, groundwater age is more appropriately represented by a distribution rather than a scalar number. To infer a groundwater age distribution from environmental tracers, a mathematical form is often assumed for the shape of the distribution and the parameters of the mathematical distribution are estimated using deterministic or stochastic inverse methods. The prescription of the mathematical form limits the exploration of the age distribution to the shapes that can be described by the selected distribution. In this paper, the use of freeform histograms as groundwater age distributions is evaluated. A Bayesian Markov Chain Monte Carlo approach is used to estimate the fraction of groundwater in each histogram bin. The method was able to capture the shape of a hypothetical gamma distribution from the concentrations of four age tracers. The number of bins that can be considered in this approach is limited based on the number of tracers available. The histogram method was also tested on tracer data sets from Holten (The Netherlands; H-3, He-3, Kr-85, Ar-39) and the La Selva Biological Station (Costa-Rica; SF6, CFCs, H-3, He-4 and C-14), and compared to a number of mathematical forms. According to standard Bayesian measures of model goodness, the best mathematical distribution performs better than the histogram distributions in terms of the ability to capture the observed tracer data relative to their complexity. Among the histogram distributions, the four bin histogram performs better in most of the cases. The Monte Carlo simulations showed strong correlations in the posterior estimates of bin contributions, indicating that these bins cannot be well constrained using the available age tracers. The fact that mathematical forms overall perform better than the freeform histogram does not undermine the benefit of the freeform approach, especially for the cases where a larger amount of observed data is available and when the real groundwater distribution is more complex than can be represented by simple mathematical forms. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Massoudieh, Arash; Sharifi, Soroosh] Catholic Univ Amer, Washington, DC 20064 USA.
[Visser, Ate] Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA 94550 USA.
[Broers, Hans Peter] Deltares, Unit Soil & Groundwater Syst, Utrecht, Netherlands.
[Broers, Hans Peter] TNO, Geol Survey Netherlands, Utrecht, Netherlands.
[Broers, Hans Peter] Vrije Univ Amsterdam, Crit Zone Hydrol Grp, Amsterdam, Netherlands.
RP Massoudieh, A (reprint author), Catholic Univ Amer, Washington, DC 20064 USA.
EM massoudieh@cua.edu
RI Visser, Ate/G-8826-2012;
OI Massoudieh, Arash/0000-0003-0200-2141
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX Part of this work was performed under the auspices of the U.S.
Department of Energy by Lawrence Livermore National Laboratory under
Contract DE-AC52-07NA27344. LLNL-JRNL-637575.
NR 72
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U1 0
U2 12
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0883-2927
J9 APPL GEOCHEM
JI Appl. Geochem.
PD NOV
PY 2014
VL 50
BP 252
EP 264
DI 10.1016/j.apgeochem.2013.10.004
PG 13
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA AT4YH
UT WOS:000344948100024
ER
PT J
AU Demirkiran, O
Topcu, G
Azarpira, A
Choudhary, MI
AF Demirkiran, Ozlem
Topcu, Gulacti
Azarpira, Ali
Choudhary, M. Iqbal
TI Tyrosinase Inhibitory Activity of Chemical Constituents of Euphorbia
macrostegia
SO CHEMISTRY OF NATURAL COMPOUNDS
LA English
DT Article
DE Euphorbia macrostegia Boiss.; long chain fatty acids; flavonoid
glycosides; tyrosinase inhibitory activity;
2-(4-hydroxyphenyl)ethylhentriacontanoate
AB The chloroform extract of the aerial parts of E. macrostegia has yielded a new compound, 2-(4-hydroxyphenyl)-ethylhentriacontanoate (1), along with hentriacontan-1-ol (2), lupenone (3), cycloart-22-ene-3,25-diol (4), 3,3',4'-tri-O-methylellagic acid (5), cleomiscosin (6), and glucoclioniasterol (stigmast-5-en-3-O-beta-glucopyranoside) (7), and from the ethyl acetate extract of aerial parts of the plant isoquercetin (8), quercetin-3-O-alpha-arabinofuranoside (avicularin) (9), and rutin (10) have been isolated. Compounds 1-10 were tested for their tyrosinase inhibitory activity, and 2 exhibited an IC50 value of 71.4 mu M, almost comparable to standard kojic acid (IC50 58.2 mu M). Compounds 1-4 also showed good activity with IC50 values of 77.2, 78.6, 71.4, and 77.5 mu M, respectively.
C1 [Demirkiran, Ozlem] Trakya Univ, Dept Pharmacognosy, Fac Pharm, TR-22030 Edirne, Turkey.
[Topcu, Gulacti] Bezmialem Vakif Univ, Dept Pharmacognosy, Fac Pharm, TR-34093 Fatih Istanbul, Turkey.
[Azarpira, Ali; Choudhary, M. Iqbal] Univ Karachi, Int Ctr Chem Sci, HEJ Res Inst Chem, Karachi 75270, Pakistan.
[Azarpira, Ali] Univ Wisconsin, DOE Great Lakes Bioenergy Res Ctr, Madison, WI 53726 USA.
[Choudhary, M. Iqbal] King Said Univ, Dept Chem, Coll Sci, Riyadh 11451, Saudi Arabia.
RP Demirkiran, O (reprint author), Trakya Univ, Dept Pharmacognosy, Fac Pharm, TR-22030 Edirne, Turkey.
EM ozlemdemirkiran@trakya.edu.tr
RI Topcu, Gulacti/C-8344-2015
OI Topcu, Gulacti/0000-0002-7946-6545
FU International Center for Chemical and Biological Sciences (Pakistan)
FX One of the authors (Ozlem Demirkiran) is grateful to the International
Center for Chemical and Biological Sciences (Pakistan) for financial
support and for providing access to the world class research facilities.
NR 17
TC 0
Z9 0
U1 1
U2 23
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0009-3130
EI 1573-8388
J9 CHEM NAT COMPD+
JI Chem. Nat. Compd.
PD NOV
PY 2014
VL 50
IS 5
BP 810
EP 813
DI 10.1007/s10600-014-1089-3
PG 4
WC Chemistry, Medicinal; Chemistry, Organic
SC Pharmacology & Pharmacy; Chemistry
GA AT7TH
UT WOS:000345139600004
ER
PT J
AU Lu, ZT
Schlosser, P
Smethie, WM
Sturchio, NC
Fischer, TP
Kennedy, BM
Purtschert, R
Severinghaus, JP
Solomon, DK
Tanhua, T
Yokochi, R
AF Lu, Z. -T.
Schlosser, P.
Smethie, W. M., Jr.
Sturchio, N. C.
Fischer, T. P.
Kennedy, B. M.
Purtschert, R.
Severinghaus, J. P.
Solomon, D. K.
Tanhua, T.
Yokochi, R.
TI Tracer applications of noble gas radionuclides in the geosciences
SO EARTH-SCIENCE REVIEWS
LA English
DT Article
DE Isotope analysis; Cosmogenic isotope; Noble gas isotope; Groundwater
residence time; Ocean ventillation; Old glacial ice
ID DATING YOUNG GROUNDWATER; GREAT ARTESIAN BASIN; ENVIRONMENTAL TRACERS;
SHALLOW GROUNDWATER; TRANSIENT TRACERS; ICE CORE; SULFUR-HEXAFLUORIDE;
ANTHROPOGENIC CO2; DIRECT SIMULATION; SUBDUCTION ZONES
AB Noble gas radionuclides, including Kr-81 (t(1/2) = 229,000 years), Kr-85 (t(1/2) = 10.8 years), and Ar-39 (t(1/2) = 269 years), possess nearly ideal chemical and physical properties for studies of earth and environmental processes. Recent advances in Atom Trap Trace Analysis (ATTA), a laser-based atom counting method, have enabled routine measurements of the radiolaypton isotopes, as well as the demonstration of the ability to measure Ar-39 in environmental samples. Here we provide an overview of the ATTA technique, and a survey of recent progress made in several laboratories worldwide. We review the application of noble gas radionuclides in the geosciences and discuss how ATTA can help advance these fields, specifically: determination of groundwater residence times using Kr-81, Kr-85, and Ar-39; dating old glacial ice using Kr-81; and an Ar-39 survey of the main water masses of the oceans, to study circulation pathways and estimate mean residence times. Other scientific questions involving a deeper circulation of fluids in the Earth's crust and mantle are also within the scope of future applications. We conclude that the geoscience community would greatly benefit from an ATTA facility dedicated to this field, with instrumentation for routine measurements, as well as for research on further development of ATTA methods. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Lu, Z. -T.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Lu, Z. -T.] Univ Chicago, Dept Phys, Chicago, IL 60637 USA.
[Lu, Z. -T.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Schlosser, P.; Smethie, W. M., Jr.] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA.
[Sturchio, N. C.; Yokochi, R.] Columbia Univ, Dept Earth & Environm Sci, New York, NY 10027 USA.
[Schlosser, P.] Columbia Univ, Dept Earth & Environm Engn, New York, NY 10027 USA.
[Sturchio, N. C.] Univ Illinois, Dept Earth & Environm Sci, Chicago, IL 60607 USA.
[Fischer, T. P.] Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA.
[Kennedy, B. M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Isotope Geochem, Berkeley, CA 94720 USA.
[Purtschert, R.] Univ Bern, Inst Phys, Bern, Switzerland.
[Severinghaus, J. P.] Univ Calif San Diego, Dept Geol & Geophys, San Diego, CA 92093 USA.
[Solomon, D. K.] Univ Utah, Dept Geol & Geophys, Salt Lake City, UT 84112 USA.
[Tanhua, T.] GEOMAR Helmholtz Ctr Ocean Res Kiel, Kiel, Germany.
[Yokochi, R.] Univ Chicago, Dept Geophys Sci, Chicago, IL 60637 USA.
RP Lu, ZT (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
EM lu@anl.gov
RI Purtschert, Roland/N-7108-2016; Solomon, Douglas/C-7951-2016
OI Purtschert, Roland/0000-0002-4734-7664; Solomon,
Douglas/0000-0001-6370-7124
FU Laboratory-Directed Research and Development Program of Argonne National
Laboratory; U.S. Department of Energy, Office of Nuclear Physics
[DEAC02-06CH11357]; U.S. National Science Foundation [EAR-1231372]
FX This paper is the outcome of a workshop supported by the
Laboratory-Directed Research and Development Program of Argonne National
Laboratory; the U.S. Department of Energy, Office of Nuclear Physics,
under contract DEAC02-06CH11357; and the U.S. National Science
Foundation under grant EAR-1231372. We are grateful to all participants
of the workshop for stimulating discussions, and to those who have made
presentations and contributed materials based on which this article is
written. The presenters include, in addition to the authors, W.
Aeschbach-Hertig, P. Aggarwal, Ch. Buizert, M. Holzer, S.-M. Hu, W.
Jiang, R. Kipfer, M. Kohler, W. Kutschera, A. Loose, A.J. Love, P.
Mueller, T.M. Parris, F. Ritterbusch, C. Sukenik, and G. Winckler. Some
presentations and a complete list of attendees are posted online at
http://www.phy.anl.gov/events/tangr2012/.
NR 156
TC 17
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U1 7
U2 56
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0012-8252
EI 1872-6828
J9 EARTH-SCI REV
JI Earth-Sci. Rev.
PD NOV
PY 2014
VL 138
BP 196
EP 214
DI 10.1016/j.earscirev.2013.09.002
PG 19
WC Geosciences, Multidisciplinary
SC Geology
GA AT6OL
UT WOS:000345058600010
ER
PT J
AU Shen, CC
Liang, WJ
Shi, Y
Lin, XG
Zhang, HY
Wu, X
Xie, G
Chain, P
Grogan, P
Chu, HY
AF Shen, Congcong
Liang, Wenju
Shi, Yu
Lin, Xiangui
Zhang, Huayong
Wu, Xian
Xie, Gary
Chain, Patrick
Grogan, Paul
Chu, Haiyan
TI Contrasting elevational diversity patterns between eukaryotic soil
microbes and plants
SO ECOLOGY
LA English
DT Article
DE Changbai Mountain, China; elevational diversity gradient; eukaryotic
soil microbes; fungi; metazoans; protists; pyrosequencing; soil pH
ID SPECIES-RICHNESS PATTERNS; COMMUNITY STRUCTURE; FUNGAL COMMUNITIES;
CHANGBAI MOUNTAIN; BACTERIAL COMMUNITIES; ALTITUDINAL GRADIENT;
MOLECULAR TECHNIQUES; GLOBAL DIVERSITY; NORTHEAST CHINA; TUNDRA SOILS
AB The diversity of eukaryotic macroorganisms such as animals and plants usually declines with increasing elevation and latitude. By contrast, the community structure of prokaryotes such as soil bacteria does not generally correlate with elevation or latitude, suggesting that differences in fundamental cell biology and/or body size strongly influence diversity patterns. To distinguish the influences of these two factors, soil eukaryotic microorganism community structure was investigated in six representative vegetation sites along an elevational gradient from forest to alpine tundra on Changbai Mountain in Northeast China, and compared with our previous determination of soil bacterial community structure along the same gradient. Using bar-coded pyrosequencing, we found strong site differences in eukaryotic microbial community composition. However, diversity of the total eukaryotic microorganism community (or just the fungi or protists alone) did not correlate with elevation. Instead, the patterns of diversity and composition in the total eukaryotic microbial community (and in the protist community alone) were closely correlated with soil pH, suggesting that just as for bacteria, acidity is a particularly important determinant of eukaryotic microbial distributions. By contrast, as expected, plant diversity at the same sites declined along our elevational gradient. These results together suggest that elevational diversity patterns exhibited by eukaryotic microorganisms are fundamentally different from those of plants.
C1 [Shen, Congcong; Shi, Yu; Lin, Xiangui; Zhang, Huayong; Chu, Haiyan] Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China.
[Liang, Wenju] Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110164, Peoples R China.
[Shen, Congcong; Shi, Yu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
[Wu, Xian] Beijing Forestry Univ, Coll Forestry, Beijing 100083, Peoples R China.
[Xie, Gary; Chain, Patrick] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
[Grogan, Paul] Queens Univ, Dept Biol, Kingston, ON K7L 3N6, Canada.
RP Chu, HY (reprint author), Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, East Beijing Rd 71, Nanjing 210008, Jiangsu, Peoples R China.
EM hychu@issas.ac.cn
RI Shi, Yu/P-3378-2015
OI Shi, Yu/0000-0001-9612-8321
FU National Natural Science Foundation of China [41071167, 41371254,
31170484, 31270656]; Strategic Priority Research Program [XDB15010101];
Hundred Talents Program of the Chinese Academy of Sciences
FX We thank Shijie Han, Guanhua Dai, and Xinyu Li for assistance with soil
sampling, and Huaibo Sun and Yingying Ni for lab assistance. We also
thank Jinbo Xiong and Jun Zeng for useful discussion. This study was
conducted at the Research Station of Changbai Mountain Forest
Ecosystems, Chinese Academy of Sciences. This work was supported by the
National Natural Science Foundation of China to H. Chu (41071167,
41371254), W. Liang (31170484), and X. Xia (31270656), the Strategic
Priority Research Program (XDB15010101), and the Hundred Talents Program
of the Chinese Academy of Sciences to H. Chu. The authors declare no
conflicts of interest.
NR 74
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Z9 21
U1 17
U2 128
PU ECOLOGICAL SOC AMER
PI WASHINGTON
PA 1990 M STREET NW, STE 700, WASHINGTON, DC 20036 USA
SN 0012-9658
EI 1939-9170
J9 ECOLOGY
JI Ecology
PD NOV
PY 2014
VL 95
IS 11
BP 3190
EP 3202
PG 13
WC Ecology
SC Environmental Sciences & Ecology
GA AU0PO
UT WOS:000345326000019
ER
PT J
AU Velsko, SP
Osburn, J
Allen, J
AF Velsko, Stephan P.
Osburn, Joanne
Allen, Jonathan
TI Forensic interpretation of molecular variation on networks of disease
transmission and genetic inheritance
SO ELECTROPHORESIS
LA English
DT Article
DE Forensic; Genetics; Inference; Networks; Transmission
ID SARS CORONAVIRUS; VIRUS; MUTATIONS; SINGAPORE; EVOLUTION; DYNAMICS;
OUTBREAK
AB This paper describes the inference-on-networks (ION) framework for forensic interpretat ION of molecular typing data in cases involving allegations of infectious microbial transmission, association of disease outbreaks with alleged sources, and identifying familial relationships using mitochondrial or Y chromosomal DNA. The framework is applicable to molecular typing data obtained using any technique, including those based on electrophoretic separations. A key insight is that the networks associated with disease transmission or DNA inheritance can be used to define specific testable relationships and avoid the ambiguity and subjectivity associated with the criteria used for inferring genetic relatedness now in use. We discuss specific applications of the framework to the 2003 severe acute respiratory syndrome (SARS) outbreak in Singapore and the 2001 foot-and-mouth disease virus (FMDV) outbreak in Great Britain.
C1 [Velsko, Stephan P.; Osburn, Joanne; Allen, Jonathan] Lawrence Livermore Natl Lab, Global Secur Directorate, Livermore, CA 94550 USA.
RP Velsko, SP (reprint author), Lawrence Livermore Natl Lab, 5508 East Ave, Livermore, CA 94550 USA.
EM Velsko2@llnl.gov
FU Department of Homeland Security; U.S. Department of Energy by Lawrence
Livermore National Laboratory [DE-AC52-07NA27344]
FX This work was supported by a grant from the Department of Homeland
Security during 2008 and 2009. This work was performed under the
auspices of the U.S. Department of Energy by Lawrence Livermore National
Laboratory under Contract DE-AC52-07NA27344.
NR 28
TC 0
Z9 0
U1 1
U2 5
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0173-0835
EI 1522-2683
J9 ELECTROPHORESIS
JI Electrophoresis
PD NOV
PY 2014
VL 35
IS 21-22
SI SI
BP 3117
EP 3124
DI 10.1002/elps.201400205
PG 8
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA AT9UP
UT WOS:000345272200014
PM 25137141
ER
PT J
AU Kim, J
Struzhkin, VV
Ovchinnikov, SG
Orlov, Y
Shvyd'ko, Y
Upton, MH
Casa, D
Gavriliuk, AG
Sinogeikin, SV
AF Kim, Jungho
Struzhkin, Viktor V.
Ovchinnikov, Sergey G.
Orlov, Yu.
Shvyd'ko, Yu.
Upton, M. H.
Casa, D.
Gavriliuk, Alexander G.
Sinogeikin, S. V.
TI Pressure-induced spin transition and evolution of the electronic
excitations of FeBO3: Resonant inelastic x-ray scattering results
SO EPL
LA English
DT Article
ID LOWER-MANTLE; SPECTRA; STATE; EMISSION; COLLAPSE; SYSTEMS; OXIDES; METAL
AB A high-pressure resonant inelastic x-ray scattering (RIXS) of FeBO3 at the Fe K pre-edge has been carried out to study the evolution of electronic excitations through the pressure-induced spin transition. Systematic peak shifts with insignificant peak width change are observed with increasing pressure in the high-spin state. An electronic transition occurs in tandem with the high-spin to low-spin transition, observed as the emergence of multiple new low-energy peaks in the spectra. The energy gap is reduced due to these low-energy peaks, not a peak width broadening. The observed electronic excitations are associated with dd excitations, which are calculated using a full-multiplet theory. We consider changes in crystal-field splitting and covalency to explain the observed peak shifts in the high-spin state. The new peaks that emerge upon the high- to low-spin transition are compared with dd excitations for the low-spin configuration. Copyright (C) EPLA, 2014
C1 [Kim, Jungho; Shvyd'ko, Yu.; Upton, M. H.; Casa, D.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Struzhkin, Viktor V.; Gavriliuk, Alexander G.] Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA.
[Ovchinnikov, Sergey G.; Orlov, Yu.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia.
[Ovchinnikov, Sergey G.] Siberian Fed Univ, Krasnoyarsk 660041, Russia.
[Gavriliuk, Alexander G.] Russian Acad Sci Troitsk, Inst Nucl Res, Moscow 142190, Russia.
[Gavriliuk, Alexander G.] Russian Acad Sci, Inst Crystallog, Moscow 119333, Russia.
[Sinogeikin, S. V.] Carnegie Inst Sci, HPCAT, Argonne, IL 60439 USA.
RP Kim, J (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
EM vstruzhkin@carnegiescience.edu; gavriliuk@mail.ru
RI Casa, Diego/F-9060-2016; Gavriliuk, Alexander/G-1317-2011
OI Gavriliuk, Alexander/0000-0003-0604-586X
FU DOE [DE-FG02-02ER45955]; U.S. DOE [DE-AC02-06CH11357]; President of
Russia Grants [NSh-1044.2012.2, MK-1168.2012.2]; Presidium of the
Russian Academy of Sciences Program 2, RFFI [12-02-90410, 12-02-31543];
Siberian Federal University Grant [F11]; Russian Foundation for Basic
Research grants from RAS programs [14-0200483, 15-02-03770]; FCP
[GK-P891]
FX High-pressure work was supported by DOE under Contract No.
DE-FG02-02ER45955. The use of the Advanced Photon Source at the Argonne
National Laboratory was supported by the U.S. DOE under Contract No.
DE-AC02-06CH11357. SGO and YuO acknowledge the President of Russia
Grants NSh-1044.2012.2 and MK-1168.2012.2, the Presidium of the Russian
Academy of Sciences Program 2, RFFI Grants 12-02-90410 and 12-02-31543,
FCP GK-P891, and the Siberian Federal University Grant F11. AGG
acknowledges support from the Russian Foundation for Basic Research
grants 14-02-00483 and 15-02-03770 from RAS programs "Strongly
correlated electron systems", "Elementary particle physics, fundamental
nuclear physics and nuclear technologies".
NR 47
TC 1
Z9 1
U1 2
U2 19
PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
PI MULHOUSE
PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
SN 0295-5075
EI 1286-4854
J9 EPL-EUROPHYS LETT
JI EPL
PD NOV
PY 2014
VL 108
IS 3
AR 37001
DI 10.1209/0295-5075/108/37001
PG 6
WC Physics, Multidisciplinary
SC Physics
GA AT4ML
UT WOS:000344913400026
ER
PT J
AU Wojtsekhowski, B
AF Wojtsekhowski, B.
TI On measurement of the isotropy of the speed of light
SO EPL
LA English
DT Article
ID POSITION MONITOR SYSTEM; CLOCK SYNCHRONIZATION; BACKGROUND-RADIATION;
ANISOTROPY; ELECTRON; FACILITY; TESTS
AB Three experimental concepts investigating possible anisotropy of the speed of light are presented. They are based on i) beam deflection in a 180 degrees magnetic arc, ii) narrow resonance production in an electron-positron collider, and iii) the ratio of magnetic moments of an electron and a positron moving in opposite directions. Copyright (C) EPLA, 2014
C1 Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
RP Wojtsekhowski, B (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
EM bogdanw@jlab.org
FU U.S. Department of Energy; U.S. DOE [DE-AC05-060R23177]
FX The author takes pleasure in acknowledging helpful discussions with V.
G. GURZADYAN of the GRAAL experiment and with C. KEPPEL, B. VLAHOVIC,
and V. ZELEVINSKY of the current concepts. He would like to extend
thanks to P. EVTUSHENKO and Y. ROBLIN for information on CEBAF
parameters. This work was supported by the U.S. Department of Energy.
Jefferson Science Associates, LLC, operates Jefferson Lab for the U.S.
DOE under U.S. DOE contract DE-AC05-060R23177.
NR 20
TC 1
Z9 1
U1 1
U2 5
PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
PI MULHOUSE
PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
SN 0295-5075
EI 1286-4854
J9 EPL-EUROPHYS LETT
JI EPL
PD NOV
PY 2014
VL 108
IS 3
AR 31001
DI 10.1209/0295-5075/108/31001
PG 3
WC Physics, Multidisciplinary
SC Physics
GA AT4ML
UT WOS:000344913400008
ER
PT J
AU Potel, M
Wong, PC
AF Potel, Mike
Wong, Pak Chung
TI Visualizing 20 Years of Applications
SO IEEE COMPUTER GRAPHICS AND APPLICATIONS
LA English
DT Editorial Material
C1 [Potel, Mike] Wildcrest Associates, Los Altos Hills, CA 94022 USA.
[Wong, Pak Chung] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Potel, M (reprint author), Wildcrest Associates, Los Altos Hills, CA 94022 USA.
EM potel@wildcrest.com; pak.wong@pnnl.gov
NR 2
TC 1
Z9 1
U1 0
U2 1
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 0272-1716
EI 1558-1756
J9 IEEE COMPUT GRAPH
JI IEEE Comput. Graph. Appl.
PD NOV-DEC
PY 2014
VL 34
IS 6
BP 6
EP 11
PG 6
WC Computer Science, Software Engineering
SC Computer Science
GA AT6SK
UT WOS:000345069000002
PM 25548822
ER
PT J
AU VanGordon, JA
Kovaleski, SD
Norgard, P
Kwon, JW
Dale, GE
AF VanGordon, James A.
Kovaleski, Scott D.
Norgard, Peter
Kwon, Jae Wan
Dale, Gregory E.
TI Method for Approximating Electron Beam Currents Accelerated by a
Piezoelectric Transformer
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Electron beams; piezoelectric devices; Q factor
ID LOSSES
AB Piezoelectric transformers (PTs) are currently used to accelerate charged-particle beams for various applications. Beam interactions at the output of the PT can be treated as a parallel RC electrical load. The impedance of the load can affect the output voltage because of the small, finite amount of charge available in the PT; therefore, high-impedance diagnostics are required to characterize the PT. A thermionic electron emitter was used to provide a controllable beam current for testing the effects of electrical loading on the PT. The electron beam was operated in vacuum at pressures of 10(-6)-10(-5) torr. The input mechanical quality factor and the effective output electrical quality factor were used to approximate the electron beam current on the basis on the PTs equivalent electromechanical circuit. The output voltage needed for the output electrical quality factor was measured via bremsstrahlung interactions at the output electrode of the PT. Optical techniques for finding internal operating parameters such as electric field and stress were used to determine the load with curve fitting as a comparison with the quality factor diagnostic. Approximating the electron beam current with such methods will help determining the output power that such PTs can generate for future applications.
C1 [VanGordon, James A.; Kovaleski, Scott D.; Norgard, Peter; Kwon, Jae Wan] Univ Missouri, Dept Elect & Comp Engn, Columbia, MO 65211 USA.
[Dale, Gregory E.] Los Alamos Natl Lab, High Power Electrodynam Grp, Los Alamos, NM 87544 USA.
RP VanGordon, JA (reprint author), Univ Missouri, Dept Elect & Comp Engn, Columbia, MO 65211 USA.
EM jav4zc@mail.missouri.edu; kovaleskis@missouri.edu;
norgardp@missouri.edu; kwonj@missouri.edu; gedale@lanl.gov
OI Norgard, Peter/0000-0002-5332-5998
FU Los Alamos National Laboratory, Los Alamos, NM, USA; Office of Naval
Research, Arlington, VA, USA
FX This work was supported in part by the Los Alamos National Laboratory,
Los Alamos, NM, USA, and in part by the Office of Naval Research,
Arlington, VA, USA.
NR 22
TC 2
Z9 2
U1 0
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
EI 1939-9375
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD NOV
PY 2014
VL 42
IS 11
BP 3579
EP 3584
DI 10.1109/TPS.2014.2356579
PG 6
WC Physics, Fluids & Plasmas
SC Physics
GA AT6RZ
UT WOS:000345067700018
ER
PT J
AU Tolstukhin, IA
Somov, AS
Somov, SV
Bolozdynya, AI
AF Tolstukhin, I. A.
Somov, A. S.
Somov, S. V.
Bolozdynya, A. I.
TI Recording of relativistic particles in thin scintillators
SO INSTRUMENTS AND EXPERIMENTAL TECHNIQUES
LA English
DT Article
AB Results of investigating an assembly of thin scintillators and silicon photomultipliers for registering relativistic particles with the minimum ionization are presented. A high efficiency of registering relativistic particles using an Ej-212 plastic scintillator, BSF-91A wavelength-shifting fiber (Saint-Gobain), and a silicon photomultiplier (Hamamtsu) is shown. The measurement results are used for creating a scintillation hodoscope of the magnetic spectrometer for registering gamma quanta in the GlueX experiment.
C1 [Tolstukhin, I. A.; Somov, S. V.; Bolozdynya, A. I.] Natl Res Nucl Univ Moscow Engn Phys Inst, Moscow 115409, Russia.
[Somov, A. S.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
RP Tolstukhin, IA (reprint author), Natl Res Nucl Univ Moscow Engn Phys Inst, Kashirskoe Sh 31, Moscow 115409, Russia.
EM ivantolstukhin@gmail.com
FU Jefferson Science Associated LLC; United States Department of Energy
[DE_AC05_06OR23177]; National Research Nuclear University Moscow
Engineering Physics Institute [11.G34.31.0049]; Russian Federation
Education Ministry [11.G34.31.0049]
FX This work was fulfilled in cooperation of the National Research Nuclear
University Moscow Engineering Physics Institute and Thomas Jefferson
National Accelerator Facility within the framework of the GlueX
experiment and supported by the Jefferson Science Associated LLC, which
carries out the operation of the Thomas Jefferson Accelerator Facility
for the United States Department of Energy, contract U.S. DOE no.
DE_AC05_06OR23177 and supported in part by the contract of the National
Research Nuclear University Moscow Engineering Physics Institute and
Russian Federation Education Ministry, project no. 11.G34.31.0049,
October 19, 2011.
NR 8
TC 2
Z9 2
U1 0
U2 3
PU MAIK NAUKA/INTERPERIODICA/SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013-1578 USA
SN 0020-4412
EI 1608-3180
J9 INSTRUM EXP TECH+
JI Instrum. Exp. Tech.
PD NOV
PY 2014
VL 57
IS 6
BP 658
EP 661
DI 10.1134/S0020441214060153
PG 4
WC Engineering, Multidisciplinary; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA AT7UB
UT WOS:000345141500002
ER
PT J
AU Dinan, J
Grant, RE
Balaji, P
Goodell, D
Miller, D
Snir, M
Thakur, R
AF Dinan, James
Grant, Ryan E.
Balaji, Pavan
Goodell, David
Miller, Douglas
Snir, Marc
Thakur, Rajeev
TI Enabling communication concurrency through flexible MPI endpoints
SO INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS
LA English
DT Article
DE MPI; endpoints; hybrid parallel programming; interoperability;
communication concurrency
AB MPI defines a one-to-one relationship between MPI processes and ranks. This model captures many use cases effectively; however, it also limits communication concurrency and interoperability between MPI and programming models that utilize threads. This paper describes the MPI endpoints extension, which relaxes the longstanding one-to-one relationship between MPI processes and ranks. Using endpoints, an MPI implementation can map separate communication contexts to threads, allowing them to drive communication independently. Endpoints also enable threads to be addressable in MPI operations, enhancing interoperability between MPI and other programming models. These characteristics are illustrated through several examples and an empirical study that contrasts current multithreaded communication performance with the need for high degrees of communication concurrency to achieve peak communication performance.
C1 [Dinan, James] Intel Corp, Hudson, MA 01749 USA.
[Grant, Ryan E.] Sandia Natl Labs, Scalable Software Syst Grp, Albuquerque, NM 87185 USA.
[Balaji, Pavan] Argonne Natl Lab, Lemont, IL USA.
[Goodell, David] Cisco Syst Inc, San Jose, CA USA.
[Miller, Douglas] IBM Corp, Rochester, MN USA.
[Snir, Marc; Thakur, Rajeev] Argonne Natl Lab, Math & Comp Sci Div, Lemont, IL USA.
RP Dinan, J (reprint author), Intel Corp, 75 Reed Rd, Hudson, MA 01749 USA.
EM james.dinan@intel.com
FU US Department of Energy [DE-AC02-06CH11307]; US Department of Energy's
National Nuclear Security Administration [DE-AC04-94AL85000]
FX This work was supported by the US Department of Energy (contract number
DE-AC02-06CH11307). Sandia National Laboratories is a multiprogram
laboratory managed and operated by Sandia Corporation, a wholly owned
subsidiary of Lockheed Martin Corporation, for the US Department of
Energy's National Nuclear Security Administration (contract number
DE-AC04-94AL85000).
NR 29
TC 2
Z9 2
U1 0
U2 0
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1094-3420
EI 1741-2846
J9 INT J HIGH PERFORM C
JI Int. J. High Perform. Comput. Appl.
PD NOV
PY 2014
VL 28
IS 4
SI SI
BP 390
EP 405
DI 10.1177/1094342014548772
PG 16
WC Computer Science, Hardware & Architecture; Computer Science,
Interdisciplinary Applications; Computer Science, Theory & Methods
SC Computer Science
GA AT9DS
UT WOS:000345228800002
ER
PT J
AU Barrett, BW
Brightwell, R
Grant, R
Hammond, SD
Hemmert, KS
AF Barrett, Brian W.
Brightwell, Ron
Grant, Ryan
Hammond, Simon D.
Hemmert, K. Scott
TI An evaluation of MPI message rate on hybrid-core processors
SO INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS
LA English
DT Editorial Material
DE MPI; Xeon Phi; network; HPC; Message Rate
ID IMPLEMENTATION
AB Power and energy concerns are motivating chip manufacturers to consider future hybrid-core processor designs that may combine a small number of traditional cores optimized for single-thread performance with a large number of simpler cores optimized for throughput performance. This trend is likely to impact the way in which compute resources for network protocol processing functions are allocated and managed. In particular, the performance of MPI match processing is critical to achieving high message throughput. In this paper, we analyze the ability of simple and more complex cores to perform MPI matching operations for various scenarios in order to gain insight into how MPI implementations for future hybrid-core processors should be designed.
C1 [Barrett, Brian W.; Brightwell, Ron; Grant, Ryan] Sandia Natl Labs, Scalable Syst Software, Albuquerque, NM 87185 USA.
[Hammond, Simon D.; Hemmert, K. Scott] Sandia Natl Labs, Scalable Comp Architecture, Albuquerque, NM 87185 USA.
RP Barrett, BW (reprint author), Sandia Natl Labs, Scalable Syst Software, POB 5800, Albuquerque, NM 87185 USA.
EM bwbarre@sandia.gov
NR 11
TC 2
Z9 2
U1 0
U2 2
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1094-3420
EI 1741-2846
J9 INT J HIGH PERFORM C
JI Int. J. High Perform. Comput. Appl.
PD NOV
PY 2014
VL 28
IS 4
SI SI
BP 415
EP 424
DI 10.1177/1094342014552085
PG 10
WC Computer Science, Hardware & Architecture; Computer Science,
Interdisciplinary Applications; Computer Science, Theory & Methods
SC Computer Science
GA AT9DS
UT WOS:000345228800004
ER
PT J
AU Zounmevo, JA
Kimpe, D
Ross, R
Afsahi, A
AF Zounmevo, Judicael A.
Kimpe, Dries
Ross, Robert
Afsahi, Ahmad
TI Extreme-scale computing services over MPI: Experiences, observations and
features proposal for next-generation message passing interface
SO INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS
LA English
DT Article
DE Message passing interface (MPI); distributed services; storage;
fault-tolerance; cancellation
ID IO; IMPLEMENTATION; PERFORMANCE; SYSTEMS
AB The message passing interface (MPI) is one of the most portable high-performance computing (HPC) programming models, with platform-optimized implementations typically delivered with new HPC systems. Therefore, for distributed services requiring portable, high-performance, user-level network access, MPI promises to be an attractive alternative to custom network portability layers, platform-specific methods, or portable but less performant interfaces such as BSD sockets. In this paper, we present our experiences in using MPI as a network transport for a large-scale distributed storage system. We discuss the features of MPI that facilitate adoption as well as aspects which require various workarounds. Based on use cases, we derive a wish list for both MPI implementations and the MPI forum to facilitate the adoption of MPI by large-scale persistent services. The proposals in the wish list go beyond the sole needs of distributed services; we contend that they will benefit mainstream HPC applications at extreme scales as well.
C1 [Zounmevo, Judicael A.; Afsahi, Ahmad] Queens Univ, ECE Dept, Kingston, ON K7L 3N6, Canada.
[Kimpe, Dries; Ross, Robert] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Zounmevo, JA (reprint author), Queens Univ, ECE Dept, Kingston, ON K7L 3N6, Canada.
EM judicael.zounmevo@queensu.ca
FU Natural Sciences and Engineering Research Council of Canada
[RGPIN/238964-2011]; Canada Foundation for Innovation; Ontario
Innovation Trust [7154]; Office of Advanced Scientific Computing
Research, Office of Science, U.S. Department of Energy
[DE-AC02-06CH11357]
FX This work was supported in part by the Natural Sciences and Engineering
Research Council of Canada (grant #RGPIN/238964-2011), by the Canada
Foundation for Innovation and by the Ontario Innovation Trust (grant
#7154). This work was also supported in part by the Office of Advanced
Scientific Computing Research, Office of Science, U.S. Department of
Energy (contract DE-AC02-06CH11357).
NR 26
TC 0
Z9 0
U1 1
U2 1
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1094-3420
EI 1741-2846
J9 INT J HIGH PERFORM C
JI Int. J. High Perform. Comput. Appl.
PD NOV
PY 2014
VL 28
IS 4
SI SI
BP 435
EP 449
DI 10.1177/1094342014548864
PG 15
WC Computer Science, Hardware & Architecture; Computer Science,
Interdisciplinary Applications; Computer Science, Theory & Methods
SC Computer Science
GA AT9DS
UT WOS:000345228800006
ER
PT J
AU Sorescu, DC
Byrd, EFC
Rice, BM
Jordan, KD
AF Sorescu, Dan C.
Byrd, Edward F. C.
Rice, Betsy M.
Jordan, Kenneth D.
TI Assessing the Performances of Dispersion-Corrected Density Functional
Methods for Predicting the Crystallographic Properties of High Nitrogen
Energetic Salts
SO JOURNAL OF CHEMICAL THEORY AND COMPUTATION
LA English
DT Article
ID GENERALIZED GRADIENT APPROXIMATION; X-RAY-STRUCTURE; AUGMENTED-WAVE
METHOD; AB-INITIO; EXCHANGE-ENERGY; HYDRAZINIUM SALTS; BASIS-SET; AZIDE;
PSEUDOPOTENTIALS; DFT
AB Several density functional methods with corrections for long-range dispersion interactions are evaluated for their capabilities to describe the crystallographic lattice properties of a set of 26 high nitrogen-content salts relevant for energetic materials applications. Computations were done using methods that ranged from adding atomatom dispersion corrections with environment-independent and environment-dependent coefficients, to methods that incorporate dispersion effects via dispersion-corrected atom-centered potentials (DCACP), to methods that include nonlocal corrections. Among the functionals tested, the most successful is the nonlocal optPBE-vdW functional of Klimes and Michaelides that predicts unit cell volumes for all crystals of the reference set within the target error range of +/- 3% and gives individual lattice parameters with a mean average percent error of less than 0.81%. The DCACP, Grimmes D3, and Becke and Johnsons exchange-hole (XDM) methods, when used with the BLYP, PBE, and B86b functionals, respectively, are also quite successful at predicting the lattice parameters of the test set.
C1 [Sorescu, Dan C.; Jordan, Kenneth D.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
[Sorescu, Dan C.; Jordan, Kenneth D.] Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA.
[Byrd, Edward F. C.; Rice, Betsy M.] US Army Res Lab, RDRL WML B, Aberdeen Proving Ground, MD 21005 USA.
[Jordan, Kenneth D.] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA.
RP Byrd, EFC (reprint author), US Army Res Lab, RDRL WML B, Aberdeen Proving Ground, MD 21005 USA.
EM edward.f.byrd2.civ@mail.mil
FU DOD Supercomputing Resource Centers (DSRCs); NSF [CHE-1362334]
FX We acknowledge with thanks a supercomputing challenge grant at several
DOD Supercomputing Resource Centers (DSRCs). Discussions with Dr. Tomas
Bucko (Comenius University), Dr. Fabien Tran (Vienna University of
Technology), and Dr. Alberto Otero de la Roza (University of California,
Merced) on implementation of dispersion interactions in VASP, CP2K, and
Quantum Espresso codes are gratefully acknowledged. K.D.J. acknowledges
support from NSF through grant number CHE-1362334.
NR 84
TC 11
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U1 2
U2 24
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1549-9618
EI 1549-9626
J9 J CHEM THEORY COMPUT
JI J. Chem. Theory Comput.
PD NOV
PY 2014
VL 10
IS 11
BP 4982
EP 4994
DI 10.1021/ct5005615
PG 13
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA AT4JI
UT WOS:000344905300022
PM 26584381
ER
PT J
AU Osterholz, WR
Kucharik, CJ
Hedtcke, JL
Posner, JL
AF Osterholz, William R.
Kucharik, Christopher J.
Hedtcke, Janet L.
Posner, Joshua L.
TI Seasonal Nitrous Oxide and Methane Fluxes from Grain- and Forage-Based
Production Systems in Wisconsin, USA
SO JOURNAL OF ENVIRONMENTAL QUALITY
LA English
DT Article
ID AVAILABLE MEASUREMENT DATA; GREENHOUSE-GAS EMISSIONS; CROPPING SYSTEMS;
AGRONOMIC ASSESSMENT; AGRICULTURAL FIELDS; CARBON-DIOXIDE; N2O
EMISSIONS; SOIL QUALITY; LONG-TERM; CORN
AB Agriculture in the midwestern United States is a major anthropogenic source of nitrous oxide (N2O) and is both a source and sink for methane (CH4), but the degree to which cropping systems differ in emissions of these gases is not well understood. Our objectives were to determine if fluxes of N2O and CH4 varied among cropping systems and among crop phases within a cropping system. We compare N2O and CH4 fluxes over the 2010 and 2011 growing seasons from the six cropping systems at the Wisconsin Integrated Cropping Systems Trial (WICST), a 20-yr-old cropping systems experiment. The study is composed of three grain and three forage cropping systems spanning a spectrum of crop diversity and perenniality that model a wide range of realistic cropping systems that differ in management, crop rotation, and fertilizer regimes. Among the grain systems, cumulative growing season N2O emissions were greater for continuous corn (Zea mays L.) (3.7 kg N2O-N ha(-1)) than corn-soybean [Glycine max (L.) Merr.] (2.0 kg N2O-N ha(-1)) or organic corn-soybean-wheat (Triticum aestivum L.) (1.7 kg N2O-N ha(-1)). Among the forage systems, cumulative growing-season N2O emissions were greater for organic corn-alfalfa (Medicago sativa L.)-alfalfa (2.9 kg N2O-N ha(-1)) and conventional corn-alfalfa-alfalfa-alfalfa (2.5 kg N2O-N ha(-1)), and lower for rotational pasture (1.9 kg N2O-N ha(-1)). Application of mineral or organic N fertilizer was associated with elevated N2O emissions. Yield-scaled emissions (kg N2O-N Mg-1) did not differ by cropping system. Methane fluxes were highly variable and no effect of cropping system was observed. These results suggest that extended and diversified cropping systems could reduce area-scaled N2O emissions from agriculture, but none of the systems studied significantly reduced yield-scaled N2O emissions.
C1 [Osterholz, William R.] Iowa State Univ, Dept Agron, Ames, IA 50011 USA.
[Kucharik, Christopher J.; Hedtcke, Janet L.; Posner, Joshua L.] Univ Wisconsin, Dept Agron, Madison, WI 53706 USA.
[Kucharik, Christopher J.] Univ Wisconsin, Nelson Inst, Ctr Sustainabil & Global Environm, Madison, WI 53726 USA.
[Kucharik, Christopher J.] Univ Wisconsin, DOE Great Lakes Bioenergy Res Ctr, Madison, WI 53705 USA.
RP Osterholz, WR (reprint author), Iowa State Univ, Dept Agron, 2104 Agron Hall, Ames, IA 50011 USA.
EM wosterho@iastate.edu
OI Osterholz, William/0000-0003-2218-9396; Kucharik,
Christopher/0000-0002-0400-758X
FU USDA-ARS (North Central. Region) [03655-12630-003-03]; University of
Wisconsin-Madison College of Agricultural and Life Sciences; DOE Great
Lakes Bic/energy Research Center (DOE BER Office of Science)
[DE-147,02-07ER64494]; DOE OBP Office of Energy Efficiency and Renewable
Energy [DE-ACO5-76R1.01830]
FX Funding for this research was provided by the USDA-ARS (North Central.
Region) via a Specific Cooperative Agreement (03655-12630-003-03) with
the U.S. Dairy Forage Research Center and by the University of
Wisconsin-Madison College of Agricultural and Life Sciences. Internal
support was provided by the University of Wisconsin Arlington
Agricultural Research Station. This work was also partially supported by
the DOE Great Lakes Bic/energy Research Center (DOE BER Office of
Science DE-147,02-07ER64494 and DOE OBP Office of Energy Efficiency and
Renewable Energy DE-ACO5-76R1.01830).
NR 47
TC 3
Z9 3
U1 6
U2 42
PU AMER SOC AGRONOMY
PI MADISON
PA 677 S SEGOE RD, MADISON, WI 53711 USA
SN 0047-2425
EI 1537-2537
J9 J ENVIRON QUAL
JI J. Environ. Qual.
PD NOV-DEC
PY 2014
VL 43
IS 6
BP 1833
EP 1843
DI 10.2134/jeq2014.02.0077
PG 11
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA AT7DD
UT WOS:000345096000002
PM 25602200
ER
PT J
AU Abelev, B
Adam, J
Adamova, D
Aggarwal, MM
Agnello, M
Agostinelli, A
Agrawal, N
Ahammed, Z
Ahmad, N
Ahmed, I
Ahn, SU
Ahn, SA
Aimo, I
Aiola, S
Ajaz, M
Akindinov, A
Alam, SN
Aleksandrov, D
Alessandro, B
Alexandre, D
Alici, A
Alkin, A
Alme, J
Alt, T
Altinpinar, S
Altsybeev, I
Prado, CAG
Andrei, C
Andronic, A
Anguelov, V
Anielski, J
Anticic, T
Antinori, F
Antonioli, P
Aphecetche, L
Appelshauser, H
Arbor, N
Arcelli, S
Armesto, N
Arnaldi, R
Aronsson, T
Arsene, IC
Arslandok, M
Augustinus, A
Averbeck, R
Awes, TC
Azmi, MD
Bach, M
Badala, A
Baek, YW
Bagnasco, S
Bailhache, R
Bala, R
Baldisseri, A
Pedrosa, FBDS
Baral, RC
Barbera, R
Barile, F
Barnafoldi, GG
Barnby, LS
Barret, V
Bartke, J
Basile, M
Bastid, N
Basu, S
Bathen, B
Batigne, G
Batyunya, B
Batzing, PC
Baumann, C
Bearden, IG
Beck, H
Bedda, C
Behera, NK
Belikov, I
Bellini, F
Bellwied, R
Belmont-Moreno, E
Belmont, R
Bencedi, G
Beole, S
Berceanu, I
Bercuci, A
Berdnikov, Y
Berenyi, D
Berger, ME
Bertens, A
Berzano, D
Betev, L
Bhasin, A
Bhat, IR
Bhati, AK
Bhattacharjee, B
Bhom, J
Bianchi, L
Bianchi, N
Bianchin, C
Bielcik, J
Bielcikova, J
Bilandzic, A
Bjelogrlic, S
Blanco, F
Blau, D
Blume, C
Bock, F
Bogdanov, A
Boggild, H
Bogolyubsky, M
Bohmer, FV
Boldizsar, L
Bombara, M
Book, J
Borel, H
Borissov, A
Bossu, F
Botje, M
Botta, E
Bottger, S
Braun-Munzinger, P
Bregant, M
Breitner, T
Broker, TA
Browning, TA
Broz, M
Bruna, E
Bruno, GE
Budnikov, D
Buesching, H
Bufalino, S
Buncic, P
Busch, O
Buthelezi, Z
Caffarri, D
Cai, X
Caines, H
Diaz, LC
Caliva, A
Villar, EC
Camerini, P
Carena, F
Carena, W
Castellanos, JC
Casula, EAR
Catanescu, V
Cavicchioli, C
Sanchez, CC
Cepila, J
Cerello, P
Chang, B
Chapeland, S
Charvet, JL
Chattopadhyay, S
Chattopadhyay, S
Chelnokov, V
Cherney, M
Cheshkov, C
Cheynis, B
Barroso, VC
Chinellato, DD
Chochula, P
Chojnacki, M
Choudhury, S
Christakoglou, P
Christensen, CH
Christiansen, P
Chujo, T
Chung, SU
Cicalo, C
Cifarelli, L
Cindolo, F
Cleymans, J
Colamaria, F
Colella, D
Collu, A
Colocci, M
Balbastre, GC
del Valle, ZC
Connors, ME
Contreras, JG
Cormier, TM
Morales, YC
Cortese, P
Maldonado, IC
Cosentino, MR
Costa, F
Crochet, P
Albino, RC
Cuautle, E
Cunqueiro, L
Dainese, A
Dang, R
Danu, A
Das, D
Das, I
Das, K
Das, S
Dash, A
Dash, S
De, S
Delagrange, H
Deloff, A
Denes, E
D'Erasmo, G
De Caro, A
de Cataldo, G
de Cuveland, J
De Falco, A
De Gruttola, D
De Marco, N
De Pasquale, S
de Rooij, R
Corchero, MAD
Dietel, T
Dillenseger, P
Divia, R
Di Bari, D
Di Liberto, S
Di Mauro, A
Di Nezza, P
Djuvsland, O
Dobrin, A
Dobrowolski, T
Gimenez, DD
Donigus, B
Dordic, O
Dorheim, S
Dubey, AK
Dubla, A
Ducroux, L
Dupieux, P
Majumdar, AKD
Ehlers, RJ
Elia, D
Engel, H
Erazmus, B
Erdal, HA
Eschweiler, D
Espagnon, B
Esposito, M
Estienne, M
Esumi, S
Evans, D
Evdokimov, S
Fabris, D
Faivre, J
Falchieri, D
Fantoni, A
Fasel, M
Fehlker, D
Feldkamp, L
Felea, D
Feliciello, A
Feofilov, G
Ferencei, J
Tellez, AF
Ferreiro, EG
Ferretti, A
Festanti, A
Figiel, J
Figueredo, MAS
Filchagin, S
Finogeev, D
Fionda, FM
Fiore, EM
Floratos, E
Floris, M
Foertsch, S
Foka, P
Fokin, S
Fragiacomo, E
Francescon, A
Frankenfeld, U
Fuchs, U
Furget, C
Girard, MF
Gaardhoje, JJ
Gagliardi, M
Gago, AM
Gallio, M
Gangadharan, DR
Ganoti, P
Garabatos, C
Garcia-Solis, E
Gargiulo, C
Garishvili, I
Gerhard, J
Germain, M
Gheata, A
Gheata, M
Ghidini, B
Ghosh, P
Ghosh, SK
Gianotti, P
Giubellino, P
Gladysz-Dziadus, E
Glassel, P
Ramirez, AG
Gonzalez-Zamora, P
Gorbunov, S
Gorlich, L
Gotovac, S
Graczykowski, LK
Grelli, A
Grigoras, A
Grigoras, C
Grigoriev, V
Grigoryan, A
Grigoryan, S
Grinyov, B
Grion, N
Grosse-Oetringhaus, JF
Grossiord, JY
Grosso, R
Guber, F
Guernane, R
Guerzoni, B
Guilbaud, M
Gulbrandsen, K
Gulkanyan, H
Gumbo, M
Gunji, T
Gupta, A
Gupta, R
Hanratty, LD
Hansen, A
Harris, JW
Hartmann, H
Harton, A
Hatzifotiadou, D
Hayashi, S
Heckel, ST
Heide, M
Helstrup, H
Herghelegiu, A
Corral, GH
Hess, BA
Hetland, KF
Hippolyte, B
Hladky, J
Hristov, P
Huang, M
Humanic, TJ
Hutter, D
Hwang, DS
Ilkaev, R
Ilkiv, I
Inaba, M
Innocenti, GM
Ionita, C
Ippolitov, M
Irfan, M
Ivanov, M
Ivanov, V
Jacholkowski, A
Jacobs, PM
Jahnke, C
Jang, HJ
Janik, MA
Jayarathna, PHSY
Jena, S
Bustamante, RTJ
Jones, PG
Jung, H
Jusko, A
Kadyshevskiy, V
Kalcher, S
Kalinak, P
Kalweit, A
Kamin, J
Kang, JH
Kaplin, V
Kar, S
Uysal, AK
Karavichev, O
Karavicheva, T
Karpechev, E
Kebschull, U
Keidel, R
Khan, MM
Khan, P
Khan, SA
Khanzadeev, A
Kharlov, Y
Kileng, B
Kim, B
Kim, DW
Kim, DJ
Kim, JS
Kim, M
Kim, M
Kim, S
Kim, T
Kirsch, S
Kisel, I
Kiselev, S
Kisiel, A
Kiss, G
Klay, JL
Klein, J
Klein-Bosing, C
Kluge, A
Knichel, ML
Knospe, AG
Kobdaj, C
Kohler, MK
Kollegger, T
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CA Alice Collaboration
TI Measurement of visible cross sections in proton-lead collisions at root
s(NN)=5.02 TeV in van der Meer scans with the ALICE detector
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Large detector systems for particle and astroparticle physics; Particle
tracking detectors; Heavy-ion detectors
AB In 2013, the Large Hadron Collider provided proton-lead and lead-proton collisions at the center-of-mass energy per nucleon pair root s(NN) = 5.02 TeV. Van der Meer scans were performed for both configurations of colliding beams, and the cross section was measured for two reference processes, based on particle detection by the T0 and V0 detectors, with pseudo-rapidity coverage 4.6 < eta < 4.9, -3.3 < eta < -3.0 and 2.8 < eta < 5.1, -3.7 < eta < -1.7, respectively. Given the asymmetric detector acceptance, the cross section was measured separately for the two configurations. The measured visible cross sections are used to calculate the integrated luminosity of the proton-lead and lead-proton data samples, and to indirectly measure the cross section for a third, configuration-independent, reference process, based on neutron detection by the Zero Degree Calorimeters.
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[Finogeev, D.; Guber, F.; Karavichev, O.; Karavicheva, T.; Karpechev, E.; Konevskikh, A.; Kurepin, A.; Kurepin, A. B.; Maevskaya, A.; Pshenichnov, I.; Reshetin, A.] Acad Sci, Inst Nucl Res, Moscow, Russia.
[Bertens, A.; Bianchin, C.; Bjelogrlic, S.; Caliva, A.; de Rooij, R.; Dobrin, A.; Dubla, A.; Grelli, A.; La Pointe, S. L.; Leogrande, E.; Lodato, D. F.; Luparello, G.; Mischke, A.; Mohammadi, N.; Nyanin, A.; Peitzmann, T.; Reicher, M.; Rocco, E.; Snellings, R. J. M.; Thomas, D.; Van Der Maarel, J.; Van Leeuwen, M.; Veldhoen, M.; Yang, H.; Zhou, Y.] Univ Utrecht, Inst Subat Phys, Utrecht, Netherlands.
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[Hladky, J.; Mares, J.; Zavada, P.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
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[Cuautle, E.; Jimenez Bustamante, R. T.; Ladron de Guevara, P.; Maldonado Cervantes, I.; Paic, G.] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico.
[Belmont-Moreno, E.; Menchaca-Rocha, A.; Sandoval, A.; Serradilla, E.] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico.
[Bossu, F.; Buthelezi, Z.; Foertsch, S.; Steyn, G.; Vilakazi, Z.] Natl Res Fdn, IThemba LABS, Somerset, NJ, South Africa.
[Batyunya, B.; Grigoryan, S.; Kadyshevskiy, V.; Malinina, L.; Mikhaylov, K.; Nooren, G.; Rogochaya, E.; Shabratova, G.; Vala, M.; Vodopyanov, A.; Zaporozhets, S.] Joint Inst Nucl Res, Dubna, Russia.
[Ahn, S. U.; Ahn, S. A.; Jang, H. J.; Kim, D. W.] Korea Inst Sci & Technol Informat, Taejon, South Korea.
[Uysal, A. Karasu; Okatan, A.] KTO Karatay Univ, Konya, Turkey.
[Baek, Y. W.; Barret, V.; Bastid, N.; Crochet, P.; Dupieux, P.; Li, S.; Lopez, X.; Manso, F.; Marchisone, M.; Porteboeuf-Houssais, S.; Rosnet, P.; Palomo, L. Valencia; Vulpescu, B.] Univ Clermont Ferrand, Clermont Univ, IN2P3, CNRS,LPC, Clermont Ferrand, France.
[Arbor, N.; Balbastre, G. Conesa; Faivre, J.; Furget, C.; Guernane, R.; Kox, S.; Real, J. S.; Silvestre, C.] Univ Grenoble Alpes, IN2P3, CNRS, Lab Phys Subatom & Cosmol, Grenoble, France.
[Bianchi, N.; Diaz, L. Calero; Cunqueiro, L.; Di Nezza, P.; Fantoni, A.; Gianotti, P.; Muccifora, V.; Reolon, A. R.; Ronchetti, F.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Ricci, R. A.; Vannucci, L.; Venaruzzo, M.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy.
[Bock, F.; Jacobs, P. M.; Loizides, C.; Ploskon, M.; Porter, J.; Sakai, S.; Symons, T. J. M.; Zhang, X.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Abelev, B.; Garishvili, I.; Soltz, R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Bogdanov, A.; Grigoriev, V.; Kaplin, V.; Kondratyeva, N.; Loginov, V.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Deloff, A.; Dobrowolski, T.; Ilkiv, I.; Kurashvili, P.; Redlich, K.; Siemiarczuk, T.; Stefanek, G.; Wilk, G.] Natl Ctr Nucl Studies, Warsaw, Poland.
[Andrei, C.; Berceanu, I.; Bercuci, A.; Catanescu, V.; Herghelegiu, A.; Petris, M.; Petrovici, M.; Pop, A.; Schiaua, C.; Tarzila, M. G.] Natl Inst Phys & Nucl Engn, Bucharest, Romania.
[Mohanty, B.; Nayak, K.; Singha, S.] Natl Inst Sci Educ & Res, Bhubaneswar, Orissa, India.
[Bearden, I. G.; Bilandzic, A.; Boggild, H.; Chojnacki, M.; Christensen, C. H.; Gaardhoje, J. J.; Gulbrandsen, K.; Hansen, A.; Nielsen, B. S.; Zaccolo, V.] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark.
[Botje, M.; Christakoglou, P.; Kuijer, P. G.; Lara, C. E. Perez; Rodriguez Manso, A.] Nikhef, Natl Inst Subat Phys, Amsterdam, Netherlands.
[Lemmon, R. C.; Romita, R.] STFC Daresbury Lab, Nucl Phys Grp, Daresbury, England.
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[Awes, T. C.; Ganoti, P.; Silvermyr, D.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
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[Cherney, M.; Nilsen, B. S.; Seger, J. E.] Creighton Univ, Dept Phys, Omaha, NE 68178 USA.
[Aggarwal, M. M.; Bhati, A. K.; Parmar, S.; Rathee, D.] Panjab Univ, Dept Phys, Chandigarh 160014, India.
[Floratos, E.; Roukoutakis, F.; Spyropoulou-Stassinaki, M.; Vasileiou, M.] Univ Athens, Dept Phys, Athens, Greece.
[Azmi, M. D.; Cleymans, J.; Murray, S.] Univ Cape Town, Dept Phys, ZA-7925 Cape Town, South Africa.
[Bala, R.; Bhasin, A.; Bhat, I. R.; Gupta, A.; Gupta, R.; Potukuchi, B.; Rohni, S.; Sambyal, S.; Sharma, S.; Singh, R.] Univ Jammu, Dept Phys, Jammu 180004, India.
[Raniwala, R.; Raniwala, S.] Univ Rajasthan, Dept Phys, Jaipur 302004, Rajasthan, India.
[Berger, M. E.; Boehmer, F. V.; Dorheim, S.] Univ Munich, Dept Phys, Munich, Germany.
[Anguelov, V.; Bock, F.; Busch, O.; Fasel, M.; Glaessel, P.; Klein, J.; Kweon, M. J.; Leardini, L.; Lohner, D.; Lu, X. -G.; Maire, A.; Perez, J. Mercado; Oh, S.; Oyama, K.; Pachmayer, Y.; Reygers, K.; Schicker, R.; Stachel, J.; Stiller, J. H.; Vallero, S.; Volkl, M. A.; Wang, Y.; Wilkinson, J.; Windelband, B.; Winn, M.; Zimmermann, A.] Heidelberg Univ, Inst Phys, Heidelberg, Germany.
[Agnello, M.; Aimo, I.; Bedda, C.] Politecn Torino, Turin, Italy.
[Browning, T. A.; Scharenberg, R. P.; Srivastava, B. K.] Purdue Univ, W Lafayette, IN 47907 USA.
[Borissov, A.; Chung, S. U.; Seo, J.; Song, J.; Yi, J.; Yoo, I. -K.] Pusan Natl Univ, Pusan 609735, South Korea.
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[Andronic, A.; Arsene, I. C.; Averbeck, R.; Braun-Munzinger, P.; Foka, P.; Frankenfeld, U.; Garabatos, C.; Ivanov, M.; Knichel, M. L.; Koehler, M. K.; Krzewicki, M.; Lippmann, C.; Malzacher, P.; Marin, A.; Martin, N. A.; Masciocchi, S.; Miskowiec, D.; Nicassio, M.; Onderwaater, J.; Otwinowski, J.; Park, W. J.; Schmidt, C.; Schwarz, K.; Schweda, K.; Selyuzhenkov, I.; Thaeder, J.; Vranic, D.; Wagner, J.] GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, Darmstadt, Germany.
[Anticic, T.; Planinic, M.; Poljak, N.; Susa, T.] Rudjer Boskovic Inst, Zagreb, Croatia.
[Budnikov, D.; Filchagin, S.; Ilkaev, R.; Kuryakin, A.; Mamonov, A.; Nazarenko, S.; Punin, V.; Tumkin, A.; Vinogradov, Y.; Vyushin, A.; Zaviyalov, N.] Russian Fed Nucl Ctr VNIIEF, Sarov, Russia.
[Aleksandrov, D.; Blau, D.; Fokin, S.; Ippolitov, M.; Kucheriaev, Y.; Manko, V.; Nikolaev, S.; Nikulin, S.; Nystrand, J.; Peresunko, D.; Ryabinkin, E.; Sibiriak, Y.; Vasiliev, A.; Vinogradov, A.; Yasnopolskiy, S.; Yushmanov, I.] Russian Res Ctr, Kurchatov Inst, Moscow, Russia.
[Chattopadhyay, S.; Das, D.; Das, K.; Majumdar, A. K. Dutta; Khan, P.; Paul, B.; Roy, P.; Sinha, T.] Saha Inst Nucl Phys, Kolkata, India.
[Alexandre, D.; Barnby, L. S.; Evans, D.; Hanratty, L. D.; Jones, P. G.; Jusko, A.; Krivda, M.; Lee, G. R.; Lietava, R.; Baillie, O. Villalobos] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England.
[Villar, E. Calvo; Gago, A. M.] Pontificia Univ Catolica Peru, Dept Ciencias, Secc Fis, Lima, Peru.
[de Cataldo, G.; Elia, D.; Lenti, V.; Manzari, V.; Nappi, E.; Paticchio, V.] Sezione Ist Nazl Fis Nucl, Bari, Italy.
[Bogolyubsky, M.; Evdokimov, S.; Kharlov, Y.; Patalakha, D. I.; Polichtchouk, B.; Sadovsky, S.; Shangaraev, A.; Stolpovskiy, M.] NRC Kurchatov Inst, SSC IHEP, Protvino, Russia.
[Aphecetche, L.; Batigne, G.; Delagrange, H.; Erazmus, B.; Estienne, M.; Germain, M.; Lardeux, A.; Garcia, G. Martinez; Blanco, J. Martin; Mas, A.; Massacrier, L.; Pillot, P.; Schutz, Y.; Shabetai, A.; Stocco, D.; Wang, M.] Univ Nantes, IN2P3, CNRS, Ecole Mines Nantes,SUBATECH, Nantes, France.
[Kobdaj, C.] Suranaree Univ Technol, Nakhon Ratchasima, Thailand.
[Gotovac, S.; Mudnic, E.; Vickovic, L.] Tech Univ Split FESB, Split, Croatia.
[Bartke, J.; Figiel, J.; Gladysz-Dziadus, E.; Goerlich, L.; Kowalski, M.; Matyja, A.; Mayer, C.; Rybicki, A.; Sputowska, I.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland.
[Knospe, A. G.; Markert, C.] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA.
[Monzon, I. Leon; Podesta-Lerma, P. L. M.; Rodriguez, F. J. Sanchez] Univ Autonoma Sinaloa, Culiacan, Mexico.
[Prado, C. Alves Garcia; Bregant, M.; Cosentino, M. R.; Gimenez, D. Domenicis; Jahnke, C.; Fernandes, C. Lagana; De Godoy, D. A. Moreira; Munhoz, M. G.; Da Silva, A. C. Oliveira; De Oliveira Filho, E. Pereira; Suaide, A. A. P.; de Toledo, A. Szanto] Univ Sao Paulo, Sao Paulo, Brazil.
[Dash, A.; Takahashi, J.] Univ Estadual Campinas, Campinas, Brazil.
[Bellwied, R.; Chinellato, D. D.; Jayarathna, P. H. S. Y.; Jena, S.; Pinsky, L.; Piyarathna, D. B.; Timmins, A. R.; Weber, M.] Univ Houston, Houston, TX USA.
[Chang, B.; Kim, D. J.; Kral, J.; Morreale, A.; Rak, J.; Slupecki, M.; Trzaska, W. H.; Vargyas, M.; Viinikainen, J.] Univ Jyvaskyla, Jyvaskyla, Finland.
[Figueredo, M. A. S.] Univ Liverpool, Liverpool L69 3BX, Merseyside, England.
[Martashvili, I.; Mazer, J.; Nattrass, C.; Read, K. F.; Scott, R.; Sharma, N.; Sorensen, S.] Univ Tennessee, Knoxville, TN USA.
[Gunji, T.; Hayashi, S.; Sekiguchi, Y.; Torii, H.; Tsuji, T.; Yamaguchi, Y.] Univ Tokyo, Tokyo, Japan.
[Bhom, J.; Chujo, T.; Esumi, S.; Inaba, M.; Miake, Y.; Sano, M.; Watanabe, D.] Univ Tsukuba, Tsukuba, Ibaraki, Japan.
[Planinic, M.; Simatovic, G.] Univ Zagreb, Zagreb 41000, Croatia.
[Cheshkov, C.; Cheynis, B.; Ducroux, L.; Grossiord, J. -Y.; Guilbaud, M.; Tieulent, R.; Uras, A.; Zoccarato, Y.] Univ Lyon 1, Univ Lyon, IN2P3, CNRS,IPN Lyon, F-69622 Villeurbanne, France.
[Altsybeev, I.; Feofilov, G.; Kolojvari, A.; Kondratiev, V.; Kovalenko, V.; Vechernin, V.; Vinogradov, L.; Vorobyev, I.; Zarochentsev, A.] St Petersburg State Univ, V Fock Inst Phys, St Petersburg 199034, Russia.
[Ahammed, Z.; Alam, S. N.; Basu, S.; Chattopadhyay, S.; Choudhury, S.; De, S.; Dubey, A. K.; Ghosh, P.; Kar, S.; Khan, S. A.; Mitra, J.; Mohanty, B.; Muhuri, S.; Mukherjee, M.; Nayak, T. K.; Pal, S. K.; Saini, J.; Sarkar, D.; Singaraju, R.; Singha, S.; Singhal, V.; Sinha, B. C.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata, India.
[Langoy, R.; Lien, J.] Vestfold Univ Coll, Tonsberg, Norway.
[Graczykowski, L. K.; Janik, M. A.; Kisiel, A.; Oleniacz, J.; Pawlak, T.; Pluta, J.; Szymanski, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Belmont, R., III; Cormier, T. M.; Loggins, V. R.; Mlynarz, J.; Prasad, S. K.; Pruneau, C. A.; Pujahari, P.; Putschke, J.; Verweij, M.; Voloshin, S. A.; Yaldo, C. G.] Wayne State Univ, Detroit, MI USA.
[Barnafoeldi, G. G.; Bencedi, G.; Berenyi, D.; Boldizsar, L.; Denes, E.; Kiss, G.; Levai, P.; Olah, L.; Pochybova, S.] Hungarian Acad Sci, Wigner Res Ctr Phys, Budapest, Hungary.
[Aiola, S.; Aronsson, T.; Caines, H.; Connors, M. E.; Ehlers, R. J.; Harris, J. W.; Ma, R.; Majka, R. D.; Reed, R. J.; Schuster, T.; Smirnov, N.] Yale Univ, New Haven, CT USA.
[Kang, J. H.; Kim, B.; Kim, M.; Kim, T.; Kwon, Y.; Song, M.] Yonsei Univ, Seoul 120749, South Korea.
[Keidel, R.] Fachhochschule Worms, ZTT, Worms, Germany.
RP Abelev, B (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RI Mitu, Ciprian/E-6733-2011; Sevcenco, Adrian/C-1832-2012; Ahmed,
Ijaz/E-9144-2015; Usai, Gianluca/E-9604-2015; Salgado, Carlos
A./G-2168-2015; Bregant, Marco/I-7663-2012; Barnby, Lee/G-2135-2010;
Barbera, Roberto/G-5805-2012; Bruna, Elena/C-4939-2014; Karasu Uysal,
Ayben/K-3981-2015; Pshenichnov, Igor/A-4063-2008; Guber,
Fedor/I-4271-2013; Zarochentsev, Andrey/J-6253-2013; Sumbera,
Michal/O-7497-2014; Kovalenko, Vladimir/C-5709-2013; Takahashi,
Jun/B-2946-2012; Peitzmann, Thomas/K-2206-2012; Kharlov,
Yuri/D-2700-2015; Felea, Daniel/C-1885-2012; Barnafoldi, Gergely
Gabor/L-3486-2013; Kucera, Vit/G-8459-2014; Krizek, Filip/G-8967-2014;
Bielcikova, Jana/G-9342-2014; Vajzer, Michal/G-8469-2014; Wagner,
Vladimir/G-5650-2014; Inst. of Physics, Gleb Wataghin/A-9780-2017;
Ferreiro, Elena/C-3797-2017; Armesto, Nestor/C-4341-2017; Ferretti,
Alessandro/F-4856-2013; Martinez Hernandez, Mario Ivan/F-4083-2010;
Vickovic, Linda/F-3517-2017; Fernandez Tellez, Arturo/E-9700-2017;
Altsybeev, Igor/K-6687-2013; Vinogradov, Leonid/K-3047-2013; Kondratiev,
Valery/J-8574-2013; Vechernin, Vladimir/J-5832-2013; Graczykowski,
Lukasz/O-7522-2015; Janik, Malgorzata/O-7520-2015; feofilov,
grigory/A-2549-2013; Adamova, Dagmar/G-9789-2014; Christensen,
Christian/D-6461-2012; De Pasquale, Salvatore/B-9165-2008; Chinellato,
David/D-3092-2012; de Cuveland, Jan/H-6454-2016; Kurepin,
Alexey/H-4852-2013; Jena, Deepika/P-2873-2015; Jena,
Satyajit/P-2409-2015; Akindinov, Alexander/J-2674-2016; Nattrass,
Christine/J-6752-2016; Cosentino, Mauro/L-2418-2014; Suaide,
Alexandre/L-6239-2016; Martynov, Yevgen/L-3009-2015; Castillo
Castellanos, Javier/G-8915-2013;
OI Sevcenco, Adrian/0000-0002-4151-1056; Usai,
Gianluca/0000-0002-8659-8378; Salgado, Carlos A./0000-0003-4586-2758;
Barnby, Lee/0000-0001-7357-9904; Barbera, Roberto/0000-0001-5971-6415;
Bruna, Elena/0000-0001-5427-1461; Karasu Uysal,
Ayben/0000-0001-6297-2532; Pshenichnov, Igor/0000-0003-1752-4524; Guber,
Fedor/0000-0001-8790-3218; Zarochentsev, Andrey/0000-0002-3502-8084;
Sumbera, Michal/0000-0002-0639-7323; Kovalenko,
Vladimir/0000-0001-6012-6615; Takahashi, Jun/0000-0002-4091-1779;
Peitzmann, Thomas/0000-0002-7116-899X; Felea,
Daniel/0000-0002-3734-9439; Ferreiro, Elena/0000-0002-4449-2356;
Armesto, Nestor/0000-0003-0940-0783; Ferretti,
Alessandro/0000-0001-9084-5784; Martinez Hernandez, Mario
Ivan/0000-0002-8503-3009; Vickovic, Linda/0000-0002-9820-7960; Fernandez
Tellez, Arturo/0000-0003-0152-4220; Beole',
Stefania/0000-0003-4673-8038; Dainese, Andrea/0000-0002-2166-1874;
Altsybeev, Igor/0000-0002-8079-7026; Vinogradov,
Leonid/0000-0001-9247-6230; Kondratiev, Valery/0000-0002-0031-0741;
Vechernin, Vladimir/0000-0003-1458-8055; Janik,
Malgorzata/0000-0002-3356-3438; feofilov, grigory/0000-0003-3700-8623;
Christensen, Christian/0000-0002-1850-0121; De Pasquale,
Salvatore/0000-0001-9236-0748; Chinellato, David/0000-0002-9982-9577; de
Cuveland, Jan/0000-0003-0455-1398; Kurepin, Alexey/0000-0002-1851-4136;
Jena, Deepika/0000-0003-2112-0311; Jena, Satyajit/0000-0002-6220-6982;
Akindinov, Alexander/0000-0002-7388-3022; Nattrass,
Christine/0000-0002-8768-6468; Cosentino, Mauro/0000-0002-7880-8611;
Suaide, Alexandre/0000-0003-2847-6556; Martynov,
Yevgen/0000-0003-0753-2205; Castillo Castellanos,
Javier/0000-0002-5187-2779; Paticchio, Vincenzo/0000-0002-2916-1671;
Scarlassara, Fernando/0000-0002-4663-8216; Turrisi,
Rosario/0000-0002-5272-337X; D'Erasmo, Ginevra/0000-0003-3407-6962
FU Worldwide LHC Computing Grid (WLCG) collaboration; State Committee of
Science; World Federation of Scientists (WFS); Swiss Fonds Kidagan,
Armenia; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico
(CNPq); Financiadora de Estudos e Projetos (FINEP); Fundacao de Amparo a
Pesquisa do Estado de Sao Paulo (FAPESP); National Natural Science
Foundation of China (NSFC); Chinese Ministry of Education (CMOE);
Ministry of Science and Technology of China (MSTC); Ministry of
Education and Youth of the Czech Republic; Danish Natural Science
Research Council; Carlsberg Foundation; Danish National Research
Foundation; European Research Council under the European Community's
Seventh Framework Programme; Helsinki Institute of Physics; Academy of
Finland; French CNRS-IN2P3; Region Pays de Loire; Region Alsace; Region
Auvergne; CEA, France; German BMBF; Helmholtz Association; General
Secretariat for Research and Technology, Ministry of Development,
Greece; Hungarian OTKA and National Office for Research and Technology
(NKTH); Department of Atomic Energy of the Government of India;
Department of Science and Technology of the Government of India;
Istituto Nazionale di Fisica Nucleare (INFN); Centro Fermi - Museo
Storico della Fisica e Centro Studi e Ricerche "Enrico Fermi", Italy;
Ministry of Education, Culture, Sports, Science and Technology (MEXT);
Japan Society for the Promotion of Science (JSPS), Japan; Joint
Institute for Nuclear Research, Dubna; National Research Foundation of
Korea (NRF); CONACYT; DGAPA, Mexico; ALFA-EC; EPLANET Program (European
Particle Physics Latin American Network); Stichting voor Fundamenteel
Onderzoek der Materie (FOM); Nederlandse Organisatie voor
Wetenschappelijk Onderzoek (NWO), Netherlands; Research Council of
Norway (NFR); Polish Ministry of Science and Higher Education; National
Science Centre, Poland; Ministry of National Education/Institute for
Atomic Physics; CNCS-UEFISCDI - Romania; Ministry of Education and
Science of Russian Federation; Russian Academy of Sciences; Russian
Federal Agency of Atomic Energy; Russian Federal Agency for Science and
Innovations; Russian Foundation for Basic Research; Ministry of
Education of Slovakia; Department of Science and Technology, South
Africa; CIEMAT; EELA; Ministerio de Economia y Competitividad (MINECO)
of Spain; Xunta de Galicia (Conselleria de Educacion); CEADEN;
Cubaenergia, Cuba; IAEA (International Atomic Energy Agency); Swedish
Research Council (VR); Knut & Alice Wallenberg Foundation (KAW); Ukraine
Ministry of Education and Science; United Kingdom Science and Technology
Facilities Council (STFC); United States Department of Energy; United
States National Science Foundation; State of Texas; State of Ohio
FX The ALICE Collaboration gratefully acknowledges the resources and
support provided by all Grid centres and the Worldwide LHC Computing
Grid (WLCG) collaboration.; The ALICE Collaboration acknowledges the
following funding agencies for their support in building and running the
ALICE detector:; State Committee of Science, World Federation of
Scientists (WFS) and Swiss Fonds Kidagan, Armenia,; Conselho Nacional de
Desenvolvimento Cientifico e Tecnologico (CNPq), Financiadora de Estudos
e Projetos (FINEP), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo
(FAPESP);; National Natural Science Foundation of China (NSFC), the
Chinese Ministry of Education (CMOE) and the Ministry of Science and
Technology of China (MSTC);; Ministry of Education and Youth of the
Czech Republic;; Danish Natural Science Research Council, the Carlsberg
Foundation and the Danish National Research Foundation;; The European
Research Council under the European Community's Seventh Framework
Programme;; Helsinki Institute of Physics and the Academy of Finland;;
French CNRS-IN2P3, the 'Region Pays de Loire', 'Region Alsace', 'Region
Auvergne' and CEA, France;; German BMBF and the Helmholtz Association;;
General Secretariat for Research and Technology, Ministry of
Development, Greece; Hungarian OTKA and National Office for Research and
Technology (NKTH);; Department of Atomic Energy and Department of
Science and Technology of the Government of India;; Istituto Nazionale
di Fisica Nucleare (INFN) and Centro Fermi - Museo Storico della Fisica
e Centro Studi e Ricerche "Enrico Fermi", Italy;; The Ministry of
Education, Culture, Sports, Science and Technology (MEXT) and Japan
Society for the Promotion of Science (JSPS), Japan; Joint Institute for
Nuclear Research, Dubna;; National Research Foundation of Korea (NRF);;
CONACYT, DGAPA, Mexico, ALFA-EC and the EPLANET Program (European
Particle Physics Latin American Network); Stichting voor Fundamenteel
Onderzoek der Materie (FOM) and the Nederlandse Organisatie voor
Wetenschappelijk Onderzoek (NWO), Netherlands;; Research Council of
Norway (NFR);; Polish Ministry of Science and Higher Education;;
National Science Centre, Poland;; Ministry of National
Education/Institute for Atomic Physics and CNCS-UEFISCDI - Romania;;
Ministry of Education and Science of Russian Federation, Russian Academy
of Sciences, Russian Federal Agency of Atomic Energy, Russian Federal
Agency for Science and Innovations and The Russian Foundation for Basic
Research;; Ministry of Education of Slovakia;; Department of Science and
Technology, South Africa;; CIEMAT, EELA, Ministerio de Economia y
Competitividad (MINECO) of Spain, Xunta de Galicia (Conselleria de
Educacion), CEADEN, Cubaenergia, Cuba, and IAEA (International Atomic
Energy Agency);; Swedish Research Council (VR) and Knut & Alice
Wallenberg Foundation (KAW); Ukraine Ministry of Education and Science;;
United Kingdom Science and Technology Facilities Council (STFC);; The
United States Department of Energy, the United States National Science
Foundation, the State of Texas, and the State of Ohio.
NR 31
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2014
VL 9
AR P11003
DI 10.1088/1748-0221/9/11/P11003
PG 25
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA AT6CH
UT WOS:000345026000017
ER
PT J
AU Acciarri, R
Carls, B
James, C
Johnson, B
Jostlein, H
Lockwitz, S
Lundberg, B
Raaf, JL
Rameika, R
Rebel, B
Zeller, GP
Zuckerbrot, M
AF Acciarri, R.
Carls, B.
James, C.
Johnson, B.
Jostlein, H.
Lockwitz, S.
Lundberg, B.
Raaf, J. L.
Rameika, R.
Rebel, B.
Zeller, G. P.
Zuckerbrot, M.
TI Liquid argon dielectric breakdown studies with the MicroBooNE
purification system
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Noble liquid detectors (scintillation, ionization, double-phase); Time
projection Chambers (TPC); Neutrino detectors
ID DETECTOR; STRENGTH; HELIUM
AB The proliferation of liquid argon time projection chamber detectors makes the characterization of the dielectric properties of liquid argon a critical task. To improve understanding of these properties, a systematic study of the breakdown electric field in liquid argon was conducted using a dedicated cryostat connected to the MicroBooNE cryogenic system at Fermilab. An electrode sphere-plate geometry was implemented using spheres with diameters of 1.3 mm, 5.0 mm, and 76 mm. The MicroBooNE cryogenic system allowed measurements to be taken at a variety of electronegative contamination levels ranging from a few parts-per-million to tens of parts-pertrillion. The cathode-anode distance was varied from 0.1 mm to 2.5 cm. The results demonstrate a geometric dependence of the electric field strength at breakdown. This study is the first time that the dependence of the breakdown field on stressed cathode area has been shown for liquid argon.
C1 [Acciarri, R.; Carls, B.; James, C.; Johnson, B.; Jostlein, H.; Lockwitz, S.; Lundberg, B.; Raaf, J. L.; Rameika, R.; Rebel, B.; Zeller, G. P.; Zuckerbrot, M.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Lockwitz, S (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM lockwitz@fnal.gov
OI Raaf, Jennifer/0000-0002-4533-929X
FU United States Department of Energy [De-AC02-07CH11359]
FX Fermilab is operated by Fermi Research Alliance, LLC under Contract No.
De-AC02-07CH11359 with the United States Department of Energy.
NR 11
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PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2014
VL 9
AR P11001
DI 10.1088/1748-0221/9/11/P11001
PG 14
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA AT6CH
UT WOS:000345026000015
ER
PT J
AU Bagby, LF
Gollapinni, S
James, CC
Jones, BJP
Jostlein, H
Lockwitz, S
Naples, D
Raaf, JL
Rameika, R
Schukraft, A
Strauss, T
Weber, MS
Wolbers, SA
AF Bagby, L. F.
Gollapinni, S.
James, C. C.
Jones, B. J. P.
Jostlein, H.
Lockwitz, S.
Naples, D.
Raaf, J. L.
Rameika, R.
Schukraft, A.
Strauss, T.
Weber, M. S.
Wolbers, S. A.
TI Breakdown voltage of metal-oxide resistors in liquid argon
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Voltage distributions; Detector design and construction technologies and
materials; Neutrino detectors; Time projection chambers
AB We characterized a sample of metal-oxide resistors and measured their breakdown voltage in liquid argon by applying high voltage (HV) pulses over a 3 second period. This test mimics the situation in a HV-divider chain when a breakdown occurs and the voltage across resistors rapidly rise from the static value to much higher values. All resistors had higher breakdown voltages in liquid argon than their vendor ratings in air at room temperature. Failure modes range from full destruction to coating damage. In cases where breakdown was not catastrophic, subsequent breakdown voltages were lower in subsequent measuring runs. One resistor type withstands 131 kV pulses, the limit of the test setup.
C1 [Bagby, L. F.; James, C. C.; Jostlein, H.; Lockwitz, S.; Raaf, J. L.; Rameika, R.; Schukraft, A.; Wolbers, S. A.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Gollapinni, S.] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA.
[Jones, B. J. P.] MIT, Cambridge, MA 02139 USA.
[Naples, D.] Univ Pittsburgh, Dept Phys, Pittsburgh, PA 15260 USA.
[Strauss, T.; Weber, M. S.] Univ Bern, Albert Einstein Ctr Fundamental Phys Bern, LHEP, CH-3012 Bern, Switzerland.
RP Strauss, T (reprint author), Univ Bern, Albert Einstein Ctr Fundamental Phys Bern, LHEP, Sidlerstr 5, CH-3012 Bern, Switzerland.
EM thomas.strauss@lhep.unibe.ch
OI Schukraft, Anne/0000-0002-9112-5479; Raaf, Jennifer/0000-0002-4533-929X;
Weber, Michele/0000-0002-2770-9031
FU Fermilab; United States Department of Energy [De-AC02-07CH11359]
FX We thank Fermilab for providing funding for the liquid argon and the
infrastructure for this measurement. Fermilab is operated by Fermi
Research Alliance, LLC under Contract No. De-AC02-07CH11359 with the
United States Department of Energy. We thank LHEP Bern for providing the
Metallux resistors.
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PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2014
VL 9
AR T11004
DI 10.1088/1748-0221/9/11/T11004
PG 10
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA AT6CH
UT WOS:000345026000038
ER
PT J
AU Dai, T
Han, L
Hou, S
Liu, M
Li, Q
Song, H
Xia, L
Zhang, Z
AF Dai, T.
Han, L.
Hou, S.
Liu, M.
Li, Q.
Song, H.
Xia, L.
Zhang, Z.
TI Low resistance bakelite RPC study for high rate working capability
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Resistive-plate chambers; Trigger detectors
AB This paper presentsseries efforts to lower resistance of bakelite electrode plate to improve the RPC capability under high rate working condition. New bakelite material with alkali metallic ion doping has been manufactured and tested. This bakelite is found unstable under large charge flux and need further investigation. Alternatively, a new structure of carbon-embedded bakelite RPC has been developed, which can reduce the effective resistance of electrode by a factor of 10. The prototype of the carbon-embedded chamber could function well under gamma radiation source at event rate higher than 10 kHz/cm(2). The preliminary tests show that this kind of new structure performs as efficiently as traditional RPCs.
C1 [Xia, L.] Argonne Natl Lab, Downers Grove Township, IL USA.
[Hou, S.] Acad Sinica, Inst Phys, Taipei, Taiwan.
[Han, L.; Liu, M.; Li, Q.; Song, H.; Zhang, Z.] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
[Dai, T.] Univ Michigan, Ann Arbor, MI 48109 USA.
RP Song, H (reprint author), Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
EM h.song@cern.ch
NR 3
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2014
VL 9
AR C11013
DI 10.1088/1748-0221/9/11/C11013
PG 8
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA AT6CH
UT WOS:000345026000013
ER
PT J
AU Moore, MH
Waidyawansa, BP
Covrig, S
Carlini, R
Benesch, J
AF Moore, M. H.
Waidyawansa, B. P.
Covrig, S.
Carlini, R.
Benesch, J.
TI Primary beam steering due to field leakage from superconducting SHMS
magnets
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Spectrometers; Detector modelling and simulations II (electric fields,
charge transport, multiplication and induction, pulse formation,
electron emission, etc); Accelerator modelling and simulations
(multi-particle dynamics; single-particle dynamics)
AB Simulations of the magnetic fields from the Super High Momentum Spectrometer in Hall C at Thomas Jefferson National Accelerator Facility show significant field leakage into the region of the primary beam line between the target and the beam dump. Without mitigation, these remnant fields will steer the unscattered beam enough to limit beam operations at small scattering angles. Presented here are magnetic field simulations of the spectrometer magnets and a solution using optimal placement of a minimal amount of shielding iron around the beam line.
C1 [Moore, M. H.; Waidyawansa, B. P.; Covrig, S.; Carlini, R.; Benesch, J.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
[Moore, M. H.] Old Dominion Univ, Norfolk, VA 23508 USA.
RP Moore, MH (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
EM mhmoore@jlab.gov
FU U.S. Department of Energy [DE-AC05-06OR23177]; United States Government
FX Notice: This manuscript has been authored by Jefferson Science
Associates, LLC under Contract No. DE-AC05-06OR23177 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 authors wish to thank Howard Fenker, Bert
Meztger and Stephen Wood for their outstanding support.
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2014
VL 9
AR T11002
DI 10.1088/1748-0221/9/11/T11002
PG 13
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA AT6CH
UT WOS:000345026000036
ER
PT J
AU Thom, J
Lipton, R
Heintz, U
Johnson, M
Narain, M
Badman, R
Spiegel, L
Triphati, M
Deptuch, G
Kenney, C
Parker, S
Ye, Z
Siddons, DP
AF Thom, J.
Lipton, R.
Heintz, U.
Johnson, M.
Narain, M.
Badman, R.
Spiegel, L.
Triphati, M.
Deptuch, G.
Kenney, C.
Parker, S.
Ye, Z.
Siddons, D. P.
TI 3D IC for future HEP detectors
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Si microstrip and pad detectors; Electronic detector readout concepts
(solid-state); Particle tracking detectors (Solid-state detectors)
ID SENSORS
AB Three dimensional integrated circuit technologies offer the possibility of fabricating large area arrays of sensors integrated with complex electronics with minimal dead area, which makes them ideally suited for applications at the LHC upgraded detectors and other future detectors. We describe ongoing R&D efforts to demonstrate functionality of components of such detectors. This includes the study of integrated 3D electronics with active edge sensors to produce "active tiles" which can be tested and assembled into arrays of arbitrary size with high yield.
C1 [Thom, J.; Badman, R.] Cornell Univ, Ithaca, NY 14850 USA.
[Lipton, R.; Johnson, M.; Spiegel, L.; Deptuch, G.; Ye, Z.] Fermilab Natl Accelerator Lab, Batavia, IL USA.
[Heintz, U.; Narain, M.] Brown Univ, Providence, RI 02912 USA.
[Triphati, M.] Univ Calif Davis, Davis, CA USA.
[Kenney, C.] SLAC, Menlo Pk, CA USA.
[Parker, S.] Univ Hawaii, Honolulu, HI 96822 USA.
[Siddons, D. P.] BNL, Upton, NY USA.
RP Thom, J (reprint author), Cornell Univ, Ithaca, NY 14850 USA.
EM jt297@cornell.edu
FU National Science Foundation [PHY-1307256, ECCS-0335765]; Department of
Energy [DE-SC0005268, DE-SC0010010]; United States Department of Energy
[De-AC02-07CH11359]; U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences [DE-AC02-98CH10886]
FX We thank the National Science Foundation for their support (grant number
PHY-1307256), as well as the Department of Energy (grant number
DE-SC0005268 and DE-SC0010010). Work was performed in part at the
Cornell NanoScale Facility, a member of the National Nanotechnology
Infrastructure Network, which is supported by the National Science
Foundation (Grant ECCS-0335765). We also acknowledge the Fermi Research
Alliance, LLC under Contract No. De-AC02-07CH11359 with the United
States Department of Energy. Work at BNL was supported by the U.S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Contract No. DE-AC02-98CH10886.
NR 10
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2014
VL 9
AR C11005
DI 10.1088/1748-0221/9/11/C11005
PG 8
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA AT6CH
UT WOS:000345026000005
ER
PT J
AU Wang, X
Setru, SU
Xie, J
Mane, A
Demarteau, M
Wagner, R
AF Wang, X.
Setru, S. U.
Xie, J.
Mane, A.
Demarteau, M.
Wagner, R.
TI Imaging of large-area microchannel plates using phosphor screens
SO JOURNAL OF INSTRUMENTATION
LA English
DT Article
DE Secondary electron emitters and dynodes and their production; Timing
detectors; Photon detectors for UV, visible and IR photons (vacuum)
(photomultipliers, HPDs, others)
ID COUNTING DETECTORS; PHOTODETECTORS; TUBE
AB A testing system was built, using UV illumination at 254 nm and a cathodoluminescent phosphor screen, to measure the gain uniformity of large area (20 x 20 cm(2)) microchannel plates. The phosphor screen image is captured with a wide-angle CMOS digital camera (4032 x 3024 pixels) and analyzed. First a reference MCP is illuminated and the generated phosphor screen image is captured with a CCD camera. In a second step, another image is captured with the MCP under test inserted between the reference MCP and the phosphor screen. The ratio of the two images is analyzed and provides a quantitative measure of the relative gain uniformity of the MCP under test.
C1 [Wang, X.; Setru, S. U.; Xie, J.; Mane, A.; Demarteau, M.; Wagner, R.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Wang, X.] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China.
RP Xie, J (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM jxie@anl.gov
FU U.S. Department of Energy, Office of Science [DE-AC02-06CH11357]; U.S.
Department of Energy, Office of Basic Energy Sciences
[DE-AC02-06CH11357]; U.S. Department of Energy, Office of High Energy
Physics [DE-AC02-06CH11357]; National Natural Science Foundation of
China [11304374]
FX The authors would like to thank O. Siegmund and J. McPhate and all the
collaborators on the LAPPD project for their valuable guidance. The
authors would also like to thank F. Skrzecz, mechanical engineer at ANL,
for his work on the engineering support. Work at Argonne National
Laboratory was supported by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences and Office of High Energy
Physics under contract DE-AC02-06CH11357. One of us (X. W.) would like
to thank the National Natural Science Foundation of China (Grant no:
11304374) for its support.
NR 18
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-0221
J9 J INSTRUM
JI J. Instrum.
PD NOV
PY 2014
VL 9
AR P11011
DI 10.1088/1748-0221/9/11/P11011
PG 11
WC Instruments & Instrumentation
SC Instruments & Instrumentation
GA AT6CH
UT WOS:000345026000025
ER
PT J
AU Bao, W
McLeod, AS
Cabrini, S
Neaton, JB
Schuck, PJ
AF Bao, Wei
McLeod, A. S.
Cabrini, S.
Neaton, J. B.
Schuck, P. James
TI Elucidating heterogeneity in nanoplasmonic structures using nonlinear
photon localization microscopy
SO JOURNAL OF OPTICS
LA English
DT Article
DE plasmonics; nonlinear nano-optics; plasmonic antennas; photon
localization microscopy
ID PLASMONIC NANOSTRUCTURES; SURFACE-PLASMONS; DNA-ORIGAMI;
ELECTRON-MICROSCOPY; HOT-ELECTRONS; FIELD; GOLD; NANOPARTICLES;
NANOANTENNAS; RESONANCE
AB Using nonperturbative photon localization microscopy and electromagnetic simulation, it is observed that localized modes in plasmonic devices are significantly impacted by small, and frequently time-dependent, structural variations on the nanometer scale. This is important because many such devices rely on the concentration of electromagnetic energy at the similar to 10 nm length scale and below for applications ranging from ultrasensitive molecular spectroscopy and detection, to chemical nano-imaging and plasmo-catalysis. In all devices, but particularly those based on noble metals, structural heterogeneity at these length scales is unavoidable, emphasizing the need for characterizing and understanding its effects. By exploiting the two-photon photoluminescence signal, one addresses the specific challenge of probing local electromagnetic fields inside the metal, which directly determine hot carrier generation and photoemission. It is found that heterogeneous nanoscale asperities serve as energy localization centers, and that functional impact is influenced primarily by two factors: position relative to a plasmonic mode volume, and how the asperity affects the smallest critical dimension, such as the size of a nanogap, in the structure.
C1 [Bao, Wei; McLeod, A. S.; Cabrini, S.; Neaton, J. B.; Schuck, P. James] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
[Bao, Wei] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Neaton, J. B.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
RP Bao, W (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
EM pjschuck@lbl.gov
RI Bao, Wei/B-4520-2014; Neaton, Jeffrey/F-8578-2015; Foundry,
Molecular/G-9968-2014
OI Neaton, Jeffrey/0000-0001-7585-6135;
FU Office of Science, Office of Basic Energy Sciences, of the US Department
of Energy [DE-AC02-05CH11231]; National Science Foundation
FX Work at the Molecular Foundry was supported by the Office of Science,
Office of Basic Energy Sciences, of the US Department of Energy under
Contract No. DE-AC02-05CH11231. We acknowledge use of nanoHUB. org
resources provided by the Network for Computational Nanotechnology
funded by the National Science Foundation.
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2040-8978
EI 2040-8986
J9 J OPTICS-UK
JI J. Opt.
PD NOV
PY 2014
VL 16
IS 11
AR 114014
DI 10.1088/2040-8978/16/11/114014
PG 6
WC Optics
SC Optics
GA AT4MX
UT WOS:000344914500015
ER
PT J
AU Zhou, X
Soppera, O
Plain, J
Jradi, S
Sun, XW
Demir, HV
Yang, XY
Deeb, C
Gray, SK
Wiederrecht, GP
Bachelot, R
AF Zhou, Xuan
Soppera, Olivier
Plain, Jerome
Jradi, Safi
Sun, Xiao Wei
Demir, Hilmi Volkan
Yang, Xuyong
Deeb, Claire
Gray, Stephen K.
Wiederrecht, Gary P.
Bachelot, Renaud
TI Plasmon-based photopolymerization: near-field probing, advanced photonic
nanostructures and nanophotochemistry
SO JOURNAL OF OPTICS
LA English
DT Review
DE nanoplasmonics; free-radical photopolymerization; nanophotochemistry;
hybrid plasmonics
ID LOCALIZED SURFACE-PLASMON; NOBLE-METAL NANOPARTICLES;
PHOTOCHEMICAL-REACTIONS; RESONANCE SPECTROSCOPY; GOLD NANOPARTICLES; MIE
PLASMONS; HOT-SPOTS; LIGHT; PHOTOLITHOGRAPHY; NANOLITHOGRAPHY
AB Hybrid nanomaterials are targeted by a rapidly growing group of nanooptics researchers, due to the promise of optical behavior that is difficult or even impossible to create with nanostructures of homogeneous composition. Examples of important areas of interest include coherent coupling, Fano resonances, optical gain, solar energy conversion, photocatalysis, and nonlinear optical interactions. In addition to the coupling interactions, the strong dependence of optical resonances and damping on the size, shape, and composition of the building blocks provides promise that the coupling interactions of hybrid nanomaterials can be controlled and manipulated for a desired outcome. Great challenges remain in reliably synthesizing and characterizing hybrid nanomaterials for nanooptics. In this review, we describe the synthesis, characterization, and applications of hybrid nanomaterials created through plasmon-induced photopolymerization. The work is placed within the broader context of hybrid nanomaterials involving plasmonic metal nanoparticles and molecular materials placed within the length scale of the evanescent field from the metal surface. We specifically review three important applications of free radical photopolymerization to create hybrid nanoparticles: local field probing, photoinduced synthesis of advanced hybrid nanoparticles, and nanophotochemistry.
C1 [Zhou, Xuan; Plain, Jerome; Jradi, Safi; Deeb, Claire; Bachelot, Renaud] Univ Technol Troyes, CNRS UMR 6281, ICD LNIO, Troyes, France.
[Soppera, Olivier] Univ Haute Alsace, CNRS UMR 7361, Inst Sci Mat Mulhouse IS2M, Mulhouse, France.
[Sun, Xiao Wei; Demir, Hilmi Volkan; Yang, Xuyong] Nanyang Technol Univ, Sch Elect & Elect Engn, LUMINOUS Ctr Excellence Semicond Lighting & Displ, Singapore 639798, Singapore.
[Gray, Stephen K.; Wiederrecht, Gary P.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Demir, Hilmi Volkan] Bilkent Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey.
RP Zhou, X (reprint author), Univ Technol Troyes, CNRS UMR 6281, ICD LNIO, Troyes, France.
EM renaud.bachelot@utt.fr
RI Bachelot, Renaud/M-6888-2015;
OI Deeb, Claire/0000-0002-1323-0660
FU US. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]; French agency for research (ANR); European
community FEDER fund; Region Champagne-Ardenne
FX The authors would like to thank current and former colleagues that are
(or have been) involved in this project in different ways (fruitful
discussion, samples, previous achievements, participation in
measurements, etc): P-M Adam, A Bouhelier, F Charra, C Ecoffet, C
Fiorini, D Gerard, D Gosztola, L Huang, H Ibn El Ahrach, P K Jain, S
Kostcheev, S Marguet, Y Qi, R D Schaller, S Telitel, A Vial and R
Vincent. The authors thank the Partner University Funds program (PUF
2010) for partially supporting this work. X Z thanks the China
Scholarship Council (CSC). Use of the Center for Nanoscale Materials was
supported by the US. Department of Energy, Office of Science, Office of
Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. This work
is also supported by the French agency for research (ANR grant HAP-PLE)
and by European community FEDER fund and the Region Champagne-Ardenne:
Grants HYN-NOV and NANO'MAT.
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2040-8978
EI 2040-8986
J9 J OPTICS-UK
JI J. Opt.
PD NOV
PY 2014
VL 16
IS 11
AR 114002
DI 10.1088/2040-8978/16/11/114002
PG 17
WC Optics
SC Optics
GA AT4MX
UT WOS:000344914500003
ER
PT J
AU Cardenas, RE
Stewart, KD
Cowgill, DF
AF Cardenas, Rosa Elia
Stewart, Kenneth D.
Cowgill, Donald F.
TI Gettering of hydrogen and methane from a helium gas mixture
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
LA English
DT Article
ID IMPURITIES
AB In this study, the authors developed an approach for accurately quantifying the helium content in a gas mixture also containing hydrogen and methane using commercially available getters. The authors performed a systematic study to examine how both H-2 and CH4 can be removed simultaneously from the mixture using two SAES St 172 (R) getters operating at different temperatures. The remaining He within the gas mixture can then be measured directly using a capacitance manometer. The optimum combination involved operating one getter at 650 degrees C to decompose the methane, and the second at 110 degrees C to remove the hydrogen. This approach eliminated the need to reactivate the getters between measurements, thereby enabling multiple measurements to be made within a short time interval, with accuracy better than 1%. The authors anticipate that such an approach will be particularly useful for quantifying the He-3 in mixtures that include tritium, tritiated methane, and helium-3. The presence of tritiated methane, generated by tritium activity, often complicates such measurements. (C) 2014 American Vacuum Society.
C1 [Cardenas, Rosa Elia] Univ Incarnate Word, Dept Phys, San Antonio, TX 78209 USA.
[Stewart, Kenneth D.; Cowgill, Donald F.] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Cardenas, RE (reprint author), Univ Incarnate Word, Dept Phys, 4301 Broadway, San Antonio, TX 78209 USA.
EM recarde1@uiwtx.edu; dfcowgi@sandia.gov
FU Sandia National Laboratories; University of the Incarnate Word; US
Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX This work was supported by Sandia National Laboratories and by The
University of the Incarnate Word. Sandia is a multi-program laboratory
operated by Sandia Corporation, a wholly owned subsidiary of Lockheed
Martin Corporation, for the US Department of Energy's National Nuclear
Security Administration under Contract No. DE-AC04-94AL85000. The
authors wish to thank Tom Felter and Steve Rice for their contributions
to this project.
NR 5
TC 0
Z9 0
U1 2
U2 5
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0734-2101
EI 1520-8559
J9 J VAC SCI TECHNOL A
JI J. Vac. Sci. Technol. A
PD NOV
PY 2014
VL 32
IS 6
AR 060602
DI 10.1116/1.4898204
PG 5
WC Materials Science, Coatings & Films; Physics, Applied
SC Materials Science; Physics
GA AT8YS
UT WOS:000345215500002
ER
PT J
AU Strelcov, E
Belianinov, A
Sumpter, BG
Kalinin, SV
AF Strelcov, Evgheni
Belianinov, Alexei
Sumpter, Bobby G.
Kalinin, Sergei V.
TI Extracting physics through deep data analysis
SO MATERIALS TODAY
LA English
DT Editorial Material
C1 [Strelcov, Evgheni; Belianinov, Alexei; Sumpter, Bobby G.; Kalinin, Sergei V.] Oak Ridge Natl Lab, Inst Funct Imaging Mat, Oak Ridge, TN 37831 USA.
RP Strelcov, E (reprint author), Oak Ridge Natl Lab, Inst Funct Imaging Mat, Oak Ridge, TN 37831 USA.
EM strelcove@ornl.gov
RI Strelcov, Evgheni/H-1654-2013; Sumpter, Bobby/C-9459-2013; Kalinin,
Sergei/I-9096-2012;
OI Sumpter, Bobby/0000-0001-6341-0355; Kalinin, Sergei/0000-0001-5354-6152;
Belianinov, Alex/0000-0002-3975-4112
NR 4
TC 0
Z9 0
U1 4
U2 22
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1369-7021
EI 1873-4103
J9 MATER TODAY
JI Mater. Today
PD NOV
PY 2014
VL 17
IS 9
BP 416
EP 417
DI 10.1016/j.mattod.2014.10.002
PG 2
WC Materials Science, Multidisciplinary
SC Materials Science
GA AT9ED
UT WOS:000345229800002
ER
PT J
AU Miao, L
Wu, WT
Aubry, N
Massoudi, M
AF Miao, Ling
Wu, Wei-Tao
Aubry, Nadine
Massoudi, Mehrdad
TI Falling film flow of a viscoelastic fluid along a wall
SO MATHEMATICAL METHODS IN THE APPLIED SCIENCES
LA English
DT Article
DE nonlinear fluids; slag; non-Newtonian fluids; variable viscosity;
falling film; viscous dissipation; radiation boundary condition;
gasification
ID POWER-LAW FLUIDS; GRANULAR-MATERIALS; GLOBAL STABILITY; 2ND-GRADE FLUID;
PART II; CONVECTION; DIFFUSION; BEHAVIOR; VECTOR; SLAG
AB In this paper, we study the heat transfer in the fully developed flow of a viscoelastic fluid, a slag layer, down a vertical wall. A new constitutive relation for the stress tensor of this fluid is proposed, where the viscosity depends on the volume fraction, temperature, and shear rate. For the heat flux vector, we assume the Fourier's law of conduction with a constant thermal conductivity. The model is also capable of exhibiting normal stress effects. The governing equations are non-dimensionalized and numerically solved to study the effects of various dimensionless parameters on the velocity, temperature, and volume fraction. The effect of the exponent in the Reynolds viscosity model is also discussed. The different cases of shear-thinning and shear-thickening, cooling and heating, are compared and discussed. The results indicate that the viscous dissipation and radiation (at the free surface) cause the temperature to be higher inside the flow domain. Copyright (c) 2013 John Wiley & Sons, Ltd.
C1 [Miao, Ling; Wu, Wei-Tao] Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15213 USA.
[Aubry, Nadine] Northeastern Univ, Dept Mech Engn, Boston, MA 02115 USA.
[Massoudi, Mehrdad] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
RP Massoudi, M (reprint author), US DOE, Natl Energy Technol Lab, 626 Cochrans ill Rd,POB 10940, Pittsburgh, PA 15236 USA.
EM massoudi@netl.doe.gov
NR 58
TC 2
Z9 3
U1 1
U2 11
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0170-4214
EI 1099-1476
J9 MATH METHOD APPL SCI
JI Math. Meth. Appl. Sci.
PD NOV
PY 2014
VL 37
IS 18
BP 2840
EP 2853
DI 10.1002/mma.3021
PG 14
WC Mathematics, Applied
SC Mathematics
GA AU0LW
UT WOS:000345315400002
ER
PT J
AU Lee, TC
Ellin, JR
Huang, Q
Shrestha, U
Gullberg, GT
Seo, Y
AF Lee, Tzu-Cheng
Ellin, Justin R.
Huang, Qiu
Shrestha, Uttam
Gullberg, Grant T.
Seo, Youngho
TI Multipinhole collimator with 20 apertures for a brain SPECT application
SO MEDICAL PHYSICS
LA English
DT Article
DE multipinhole SPECT; brain SPECT; DAT imaging; 123I-ioflupane
ID ULTRA-HIGH-RESOLUTION; MULTI-PINHOLE SPECT; PARKINSONS-DISEASE; DOPAMINE
TRANSPORTER; SCINTILLATION CAMERA; CLINICAL-DIAGNOSIS; RECONSTRUCTION;
SIMULATION; ACCURACY; FEATURES
AB Purpose: Several new technologies for single photon emission computed tomography (SPECT) instrumentation with parallel-hole collimation have been proposed to improve detector sensitivity and signal collection efficiency. Benefits from improved signal efficiency include shorter acquisition times and lower dose requirements. In this paper, the authors show a possibility of over an order of magnitude enhancement in photon detection efficiency (from 7.6x10(-5) to 1.6x10(-3)) for dopamine transporter (DaT) imaging of the striatum over the conventional SPECT parallel-hole collimators by use of custom-designed 20 multipinhole (20-MPH) collimators with apertures of 0.75 cm diameter.
Methods: Quantifying specific binding ratio (SBR) of I-123-ioflupane or I-123-iometopane's signal at the striatal region is a common brain imaging method to confirm the diagnosis of the Parkinson's disease. The authors performed imaging of a striatal phantom filled with aqueous solution of I-123 and compared camera recovery ratios of SBR acquired between low-energy high-resolution (LEHR) parallel-hole collimators and 20-MPH collimators.
Results: With only two-thirds of total acquisition time (20 min against 30 min), a comparable camera recovery ratio of SBR was achieved using 20-MPH collimators in comparison to that from the LEHR collimator study.
Conclusions: Their systematic analyses showed that the 20-MPH collimator could be a promising alternative for the DaT SPECT imaging for brain over the traditional LEHR collimator, which could give both shorter scan time and improved diagnostic accuracy. (C) 2014 American Association of Physicists in Medicine.
C1 [Lee, Tzu-Cheng; Ellin, Justin R.; Shrestha, Uttam; Seo, Youngho] Univ Calif San Francisco, Dept Radiol & Biomed Imaging, Phys Res Lab, San Francisco, CA 94107 USA.
[Huang, Qiu] Shanghai Jiao Tong Univ, Sch Biomed Engn, Shanghai 200030, Peoples R China.
[Gullberg, Grant T.] Lawrence Berkeley Natl Lab, Div Life Sci, Dept Radiotracer Dev & Imaging Technol, Berkeley, CA 94702 USA.
RP Seo, Y (reprint author), Univ Calif San Francisco, Dept Radiol & Biomed Imaging, Phys Res Lab, San Francisco, CA 94107 USA.
EM youngho.seo@ucsf.edu
FU National Heart, Lung and Blood Institute [R21 HL083073, R01 HL050663];
National Institute of Biomedical Imaging and Bioengineering [R01
EB012965]
FX This work was supported in part by National Heart, Lung and Blood
Institute under Grant No. R21 HL083073 (J.D.B. and Y.S.) and Grant No.
R01 HL050663 (J.E., U.S., G.T.G., and Y.S.), and National Institute of
Biomedical Imaging and Bioengineering under Grant No. R01 EB012965
(T.-C.L. and Y.S.).
NR 37
TC 0
Z9 0
U1 2
U2 5
PU AMER ASSOC PHYSICISTS MEDICINE AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0094-2405
J9 MED PHYS
JI Med. Phys.
PD NOV
PY 2014
VL 41
IS 11
AR 112501
DI 10.1118/1.4897567
PG 7
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA AT5RO
UT WOS:000344999800048
PM 25370660
ER
PT J
AU Batth, TS
Singh, P
Ramakrishnan, VR
Sousa, MML
Chan, LJG
Tran, HM
Luning, EG
Pan, EHY
Vuu, KM
Keasling, JD
Adams, PD
Petzold, CJ
AF Batth, Tanveer S.
Singh, Pragya
Ramakrishnan, Vikram R.
Sousa, Mirta M. L.
Chan, Leanne Jade G.
Tran, Huu M.
Luning, Eric. G.
Pan, Eva H. Y.
Vuu, Khanh M.
Keasling, Jay D.
Adams, Paul D.
Petzold, Christopher J.
TI A targeted proteomics toolkit for high-throughput absolute
quantification of Escherichia coli proteins
SO METABOLIC ENGINEERING
LA English
DT Article
DE Targeted proteomics; High throughput proteomics; E. coli; Peptide
standards; Absolute protein quantification
ID CONCATENATED SIGNATURE PEPTIDES; YEAST PROTEOME; EXPRESSION; STANDARD;
BIOLOGY; SYSTEMS; DESIGN; PLASMA
AB Transformation of engineered Escherichia call into a robust microbial factory is contingent on precise control of metabolism. Yet, the throughput of omics technologies used to characterize cell components has lagged far behind our ability to engineer novel strains. To expand the utility of quantitative proteomics for metabolic engineering, we validated and optimized targeted proteomics methods for over 400 proteins from more than 20 major pathways in E. coli metabolism. Complementing these methods, we constructed a series of synthetic genes to produce concatenated peptides (QconCAT) for absolute quantification of the proteins and made them available through the Addgene plasmid repository (vvww.addgene.org). To facilitate high sample throughput, we developed a fast, analytical flow chromatography method using a 5.5 mm gradient (10 min total run time). Overall this toolkit provides an invaluable resource for metabolic engineering by increasing sample throughput, minimizing development time and providing peptide standards for absolute quantification of E. cob proteins. Ks. (C) 2014 International Metabolic Engineering Society. Published by Elsevier Inc. All rights reserved.
C1 [Batth, Tanveer S.; Singh, Pragya; Ramakrishnan, Vikram R.; Sousa, Mirta M. L.; Chan, Leanne Jade G.; Tran, Huu M.; Pan, Eva H. Y.; Vuu, Khanh M.; Keasling, Jay D.; Adams, Paul D.; Petzold, Christopher J.] Joint BioEnergy Inst, Emeryville, CA 94608 USA.
[Batth, Tanveer S.; Singh, Pragya; Chan, Leanne Jade G.; Luning, Eric. G.; Pan, Eva H. Y.; Vuu, Khanh M.; Keasling, Jay D.; Adams, Paul D.; Petzold, Christopher J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Ramakrishnan, Vikram R.; Keasling, Jay D.; Adams, Paul D.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
[Sousa, Mirta M. L.] Norwegian Univ Sci & Technol NTNU, Dept Canc Res & Mol Med, N-7489 Trondheim, Norway.
[Sousa, Mirta M. L.] Prote & Metabol Core Facil PROMEC NTNU, Trondheim, Norway.
[Tran, Huu M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Keasling, Jay D.] Univ Calif Berkeley, Dept Biomol & Chem Engn, Berkeley, CA 94720 USA.
[Sousa, Mirta M. L.] Cent Norway Reg Hlth Author, Trondheim, Norway.
RP Petzold, CJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
EM cjpetzold@lbl.gov
RI Adams, Paul/A-1977-2013
OI Adams, Paul/0000-0001-9333-8219
FU U.S. Department of Energy, Office of Science, Office of Biological and
Environmental Research [DE-AC02-05CH11231]
FX This work was part of the DOE joint BioEnergy Institute
(http://www.jbei.org) supported by the U.S. Department of Energy, Office
of Science, Office of Biological and Environmental Research, through
Contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory
and the U.S. Department of Energy. Targeted proteomics methods in
Skyline format and SRM information are available via Panorama located
at:
(https://panoramaweb.org/labkey/project/JBEI/Escherichia%20coli%20pathwa
ys%20manuscript/begin.view?). The QconCAT constructs used in this work
are available through Addgene (www.addgene.org/).
NR 40
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Z9 10
U1 0
U2 31
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1096-7176
EI 1096-7184
J9 METAB ENG
JI Metab. Eng.
PD NOV
PY 2014
VL 26
BP 48
EP 56
DI 10.1016/j.ymben.2014.08.004
PG 9
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA AT5QZ
UT WOS:000344998300005
PM 25205128
ER
PT J
AU Goh, EB
Baidoo, EEK
Burd, H
Lee, TS
Keasling, JD
Beller, HR
AF Goh, Ee-Been
Baidoo, Edward E. K.
Burd, Helcio
Lee, Taek Soon
Keasling, Jay D.
Beller, Harry R.
TI Substantial improvements in methyl ketone production in E. coli and
insights on the pathway from in vitro studies
SO METABOLIC ENGINEERING
LA English
DT Article
DE Methyl ketones; Fatty acid; Biofuels; FadM; Beta-oxidation; Acetate
ID ESCHERICHIA-COLI; MICROCOCCUS-LUTEUS; GENES; BIOSYNTHESIS; EXPRESSION;
CHEMICALS; ACETATE; BIOLOGY; FUELS
AB We previously reported development of a metabolic pathway in Escherichia coli for overproduction of medium-chain methyl ketones (MK), which are relevant to the biofuel and flavor-and-fragrance industries. This MK pathway was a re-engineered version of P-oxidation designed to overproduce p-ketoacyl-CoAs and involved overexpression of the fadM thioesterase gene. Here, we document metabolic engineering modifications that have led to a MK titer of 3.4 g/L after similar to 45 h of fed-batch glucose fermentation and attainment of 408 of the maximum theoretical yield (the best values reported to date for MK). Modifications included balancing overexpression of fadR and fadD to increase fatty acid flux into the pathway, consolidation of the pathway from two plasmids into one, codon optimization, and knocking out key acetate production pathways. In vitro studies confirmed that a decarboxylase is not required to convert beta-keto acids into MK and that FadM is promiscuous and can hydrolyze several CoA-thioester pathway intermediates. (C) 2014 International Metabolic Engineering Society. Published by Elsevier Inc. All rights reserved.
C1 [Goh, Ee-Been; Baidoo, Edward E. K.; Burd, Helcio; Lee, Taek Soon; Keasling, Jay D.; Beller, Harry R.] Joint BioEnergy Inst, Emeryville, CA 94608 USA.
[Beller, Harry R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Goh, Ee-Been; Baidoo, Edward E. K.; Burd, Helcio; Lee, Taek Soon; Keasling, Jay D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Keasling, Jay D.] Univ Calif Berkeley, Dept Biomol & Chem Engn, Berkeley, CA 94720 USA.
[Keasling, Jay D.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
RP Beller, HR (reprint author), Joint BioEnergy Inst, 5885 Hollis Ave, Emeryville, CA 94608 USA.
EM HRBeller@lbl.gov
RI Beller, Harry/H-6973-2014
FU Office of Science, Office of Biological and Environmental Research of
the U.S. Department of Energy [DE-AC02-05CH11231]; Abengoa
FX We thank Pragya Singh and Christopher Petzold (Technology Division,
JBEI) for mass spectrometric analysis of protein samples. This work
conducted by the Joint BioEnergy Institute was supported by the Office
of Science, Office of Biological and Environmental Research of the U.S.
Department of Energy under Contract no DE-AC02-05CH11231. E.-B.G. was
partially supported by Abengoa. J.D.K. has a financial interest in
Amyris and Lygos.
NR 27
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Z9 13
U1 2
U2 26
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1096-7176
EI 1096-7184
J9 METAB ENG
JI Metab. Eng.
PD NOV
PY 2014
VL 26
BP 67
EP 76
DI 10.1016/j.ymben.2014.09.003
PG 10
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA AT5QZ
UT WOS:000344998300007
PM 25241399
ER
PT J
AU Haushalter, RW
Kim, W
Chavkin, TA
The, L
Garber, ME
Nhan, M
Adams, PD
Petzold, CJ
Katz, L
Keasling, JD
AF Haushalter, Robert W.
Kim, Woncheol
Chavkin, Ted A.
The, Lionadi
Garber, Megan E.
Nhan, Melissa
Adams, Paul D.
Petzold, Christopher J.
Katz, Leonard
Keasling, Jay D.
TI Production of anteiso-branched fatty acids in Escherichia coli; next
generation biofuels with improved cold-flow properties
SO METABOLIC ENGINEERING
LA English
DT Article
DE Biofuels; Synthetic biology; Fatty acids
ID BIODIESEL PRODUCTION; FUELS; K-12; TRANSCRIPTION; BIOSYNTHESIS;
EXPRESSION; MOLECULES; CHEMICALS; SYNTHASE; COMPLEX
AB Microbial fermentation is emerging as an increasingly important resource for the production of fatty acids to serve as precursors for renewable diesel as well as detergents, lubricants and other industrial chemicals, as an alternative to traditional sources of reduced carbon such as petroleum. A major disadvantage of fuels derived from biological sources is their undesirable physical properties such as high cloud and pour points, and high viscosity. Here we report the development of an Escherichia cob strain that efficiently produces anteiso-branched fatty acids, which can be converted into downstream products with lower cloud and pour points than the mixtures of compounds produced via the native metabolism of the cell. This work addresses a serious limitation that must be overcome in order to produce renewable biodiesel and oleochemicals that perform as well as their petroleum-based counterparts. (C) International Metabolic Engineering Society. Published by Elsevier Inc. All rights reserved,
C1 [Haushalter, Robert W.; Kim, Woncheol; Nhan, Melissa; Adams, Paul D.; Petzold, Christopher J.; Keasling, Jay D.] Joint BioEnergy Inst, Emeryville, CA 94608 USA.
[Haushalter, Robert W.; Kim, Woncheol; Nhan, Melissa; Adams, Paul D.; Petzold, Christopher J.; Keasling, Jay D.] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Chavkin, Ted A.; The, Lionadi; Garber, Megan E.; Katz, Leonard; Keasling, Jay D.] Univ Calif Berkeley, Inst QB3, Emeryville, CA 94608 USA.
[Katz, Leonard; Keasling, Jay D.] Univ Calif Berkeley, Synthet Biol Engn Res Ctr, Berkeley, CA 94720 USA.
[Adams, Paul D.; Keasling, Jay D.] Univ Calif Berkeley, Dept Bioengn, Dept Biomol & Chem Engn, Berkeley, CA 94720 USA.
RP Keasling, JD (reprint author), Joint BioEnergy Inst, 5885 Hollis St,4th Floor, Emeryville, CA 94608 USA.
EM jdkeasling@lbl.gov
RI Adams, Paul/A-1977-2013
OI Adams, Paul/0000-0001-9333-8219
FU Office of Science, Office of Biological and Environmental Research U.S.
Department of Energy [DE-AC02-05CH11231]
FX We thank Prof. Charles O. Rock for generously providing bFabH constructs
and Prof. James C. Liao for providing strain CRS24 and plasmids pCS49,
pAFC3, and pAFC46. We acknowledge Dr. Eric Steen for producing strain
JBEI-3111, Dr. Dan Groff for generating plasmid pPhatty, and Vivian
Macnguyen, Meghana Rao, Michael Bonilla, and Andrew Brandon for
technical assistance. This work conducted by the Joint BioEnergy
Institute was supported by the Office of Science, Office of Biological
and Environmental Research U.S. Department of Energy under Contract no.
DE-AC02-05CH11231.
NR 30
TC 14
Z9 15
U1 0
U2 35
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1096-7176
EI 1096-7184
J9 METAB ENG
JI Metab. Eng.
PD NOV
PY 2014
VL 26
BP 111
EP 118
DI 10.1016/j.ymben.2014.09.002
PG 8
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA AT5QZ
UT WOS:000344998300011
PM 25250846
ER
PT J
AU Spurgeon, SR
AF Spurgeon, Steven R.
TI "Paper Factory" produces a blend of science and engineering education
SO MRS BULLETIN
LA English
DT Article
C1 Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
RP Spurgeon, SR (reprint author), Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
OI Spurgeon, Steven/0000-0003-1218-839X
NR 0
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0883-7694
EI 1938-1425
J9 MRS BULL
JI MRS Bull.
PD NOV
PY 2014
VL 39
IS 11
BP 945
EP 946
DI 10.1557/mrs.2014.268
PG 2
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA AT7ML
UT WOS:000345121300012
ER
PT J
AU Das, S
Chigurupati, S
Dowding, J
Munusamy, P
Baer, DR
McGinnis, JF
Mattson, MP
Self, W
Seal, S
AF Das, Soumen
Chigurupati, Srinivasulu
Dowding, Janet
Munusamy, Prabhakaran
Baer, Donald R.
McGinnis, James F.
Mattson, Mark P.
Self, William
Seal, Sudipta
TI Therapeutic potential of nanoceria in regenerative medicine
SO MRS BULLETIN
LA English
DT Article
ID CERIUM OXIDE NANOPARTICLES; OXIDATIVE STRESS; CEO2 NANOPARTICLES;
NEURONAL SURVIVAL; CELLS; RADIATION; PROTECT; MICE; NANOSTRUCTURES;
PROLIFERATION
AB Tissue engineering and regenerative medicine aim to achieve functional restoration of tissue or cells damaged through disease, aging, or trauma. Advancement of tissue engineering requires innovation in the field of three-dimensional scaffolding and functionalization with bioactive molecules. Nanotechnology offers advanced materials with patterned nano-morphologies for cell growth and different molecular substrates that can support cell survival and functions. Cerium oxide nanoparticles (nanoceria) can control intracellular as well as extracellular reactive oxygen and nitrogen species. Recent findings suggest that nanoceria can enhance long-term cell survival, enable cell migration and proliferation, and promote stem cell differentiation. Moreover, the self-regenerative property of nanoceria permits a small dose to remain catalytically active for an extended time. This review summarizes the possibilities and applications of nanoceria in the field of tissue engineering and regenerative medicine.
C1 [Das, Soumen] Univ Cent Florida, Nanosci Technol Ctr, Adv Mat Proc Anal Ctr, Orlando, FL 32816 USA.
[Chigurupati, Srinivasulu] US FDA, Div Neurotoxicol, Natl Ctr Toxicol Res, Rockville, MD 20857 USA.
[Dowding, Janet] Univ Cent Florida, Burnett Sch Biomed Sci, Orlando, FL 32816 USA.
[Munusamy, Prabhakaran; Baer, Donald R.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[McGinnis, James F.] Univ Oklahoma, Hlth Sci Ctr, Dept Ophthalmol, Norman, OK 73019 USA.
[Mattson, Mark P.] NIA, Neurosci Lab, Intramural Res Program, Bethesda, MD 20892 USA.
[Self, William] Univ Cent Florida, Burnett Sch Biomed Sci, Orlando, FL 32816 USA.
[Seal, Sudipta] Univ Cent Florida, Adv Mat Proc & Anal Ctr, Nanosci & Technol Ctr, Coll Med, Orlando, FL 32816 USA.
RP Das, S (reprint author), Univ Cent Florida, Nanosci Technol Ctr, Adv Mat Proc Anal Ctr, Orlando, FL 32816 USA.
EM soumen.das@ucf.edu; srinivasulu.chigurupati@fda.hhs.gov;
jdowding42q@gmail.com; prabhakaran.munusamy@pnnl.gov; don.baer@pnnl.gov;
James-McGinnis@ouhsc.edu; MattsonM@grc.nia.nih.gov;
william.self@ucf.edu; Sudipta.Seal@ucf.edu
RI Baer, Donald/J-6191-2013; Self, William/A-6704-2008
OI Baer, Donald/0000-0003-0875-5961;
FU National Institute on Aging; NIH NEI [COBRE-P20 RR017703, P30-EY 12190,
R21EY018306, R01EY18724, R01EY022111]; National Science Foundation
[CBET-0708172]; NIEHS Center [U19 ES019544]; US Department of Energy,
Biological and Environmental Research and located at PNNL
FX This work was supported, in part, by the intramural research program of
the National Institute on Aging. The work by J.F.M. was supported by NIH
NEI Grant COBRE-P20 RR017703, P30-EY 12190, R21EY018306, R01EY18724,
R01EY022111; National Science Foundation: CBET-0708172; and Research to
Prevent Blindness. D.R.B. was supported by the NIEHS Center Grant U19
ES019544. Part of this work was performed using EMSL, a national
scientific user facility sponsored by the US Department of Energy,
Biological and Environmental Research and located at PNNL. S.S. and W.S.
acknowledge NSF and NIH for various aspects of nano-biotechnology
research.
NR 50
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Z9 5
U1 3
U2 20
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0883-7694
EI 1938-1425
J9 MRS BULL
JI MRS Bull.
PD NOV
PY 2014
VL 39
IS 11
BP 976
EP 983
DI 10.1557/mrs.2014.221
PG 8
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA AT7ML
UT WOS:000345121300017
ER
PT J
AU Neaton, JB
AF Neaton, Jeffrey B.
TI SINGLE-MOLECULE JUNCTIONS Thermoelectricity at the gate
SO NATURE NANOTECHNOLOGY
LA English
DT Editorial Material
ID THERMOPOWER
C1 [Neaton, Jeffrey B.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
[Neaton, Jeffrey B.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Neaton, Jeffrey B.] Kavli Energy NanoSci Inst Berkeley, Berkeley, CA 94720 USA.
RP Neaton, JB (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
EM jbneaton@lbl.gov
RI Neaton, Jeffrey/F-8578-2015; Foundry, Molecular/G-9968-2014
OI Neaton, Jeffrey/0000-0001-7585-6135;
NR 15
TC 3
Z9 3
U1 0
U2 32
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1748-3387
EI 1748-3395
J9 NAT NANOTECHNOL
JI Nat. Nanotechnol.
PD NOV
PY 2014
VL 9
IS 11
BP 876
EP 877
DI 10.1038/nnano.2014.256
PG 3
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA AT4YY
UT WOS:000344951100006
PM 25370426
ER
PT J
AU Grierson, BA
Burrell, KH
Garofalo, AM
Solomon, WM
Diallo, A
O'Mullane, M
AF Grierson, B. A.
Burrell, K. H.
Garofalo, A. M.
Solomon, W. M.
Diallo, A.
O'Mullane, M.
TI Response of impurity particle confinement time to external actuators in
QH-mode plasmas on DIII-D
SO NUCLEAR FUSION
LA English
DT Article; Proceedings Paper
CT 14th InternationalWorkshop on H-mode Physics andTransport Barriers
CY OCT 02-04, 2013
CL Fukuoka, JAPAN
DE plasma properties; plasma impurities; optical measurements
AB A series of quiescent H-mode discharges has been executed with the specific aim of determining the particle confinement time of impurities in the presence of the edge harmonic oscillation. These discharges utilize non-intrinsic, non-recycling fully-stripped fluorine as the diagnostic species monitored by charge-exchange recombination spectroscopy. It is found that the edge harmonic oscillation is an efficient means of impurity expulsion from the core plasma, with impurity exhaust rates comparable to or exceeding those in companion ELMing discharges. As the external torque from neutral beam injection is lowered, the global energy confinement time increases while the impurity confinement time does not display an increase.
C1 [Grierson, B. A.; Solomon, W. M.; Diallo, A.] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Burrell, K. H.; Garofalo, A. M.] Gen Atom Co, San Diego, CA 92186 USA.
[O'Mullane, M.] Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland.
RP Grierson, BA (reprint author), Princeton Univ, Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM bgriers@pppl.gov
OI Solomon, Wayne/0000-0002-0902-9876
FU U.S. Department of Energy [DE-AC02-09CH11466, DE-FC02-04ER54698]
FX This work supported in part by the U.S. Department of Energy under
DE-AC02-09CH11466 and DE-FC02-04ER54698. The originating developer of
ADAS is the JET Joint Undertaking. DIII-D data shown in this paper can
be obtained in digital format by following the links at
https://fusion.gat.com/global/D3D_DMP.
NR 11
TC 6
Z9 6
U1 1
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0029-5515
EI 1741-4326
J9 NUCL FUSION
JI Nucl. Fusion
PD NOV
PY 2014
VL 54
IS 11
SI SI
AR 114011
DI 10.1088/0029-5515/54/11/114011
PG 5
WC Physics, Fluids & Plasmas
SC Physics
GA AT5DY
UT WOS:000344964800012
ER
PT J
AU Maingi, R
AF Maingi, R.
TI Enhanced confinement scenarios without large edge localized modes in
tokamaks: control, performance, and extrapolability issues for ITER
SO NUCLEAR FUSION
LA English
DT Article; Proceedings Paper
CT 14th InternationalWorkshop on H-mode Physics andTransport Barriers
CY OCT 02-04, 2013
CL Fukuoka, JAPAN
DE edge localized mode; ITER; heat flux; magnetic perturbations; pellets
ID DIII-D TOKAMAK; HIGH-FIELD SIDE; ALCATOR C-MOD; ASDEX UPGRADE; H-MODE;
PELLET INJECTION; FREQUENCY CONTROL; BALLOONING MODES; PARTICLE LOSSES;
POWER THRESHOLD
AB Large edge localized modes (ELMs) typically accompany good H-mode confinement in fusion devices, but can present problems for plasma facing components because of high transient heat loads. Here the range of techniques for ELM control deployed in fusion devices is reviewed. Two strategies in the ITER baseline design are emphasized: rapid ELM triggering and peak heat flux control via pellet injection, and the use of magnetic perturbations to suppress or mitigate ELMs. While both of these techniques are moderately well developed, with reasonable physical bases for projecting to ITER, differing observations between multiple devices are also discussed to highlight the needed community R&D. In addition, recent progress in ELM-free regimes, namely quiescent H-mode, I-mode, and enhanced pedestal H-mode is reviewed, and open questions for extrapolability are discussed. Finally progress and outstanding issues in alternate ELM control techniques are reviewed: supersonic molecular beam injection, edge electron cyclotron heating, lower hybrid heating and/or current drive, controlled periodic jogs of the vertical centroid position, ELM pace-making via periodic magnetic perturbations, ELM elimination with lithium wall conditioning, and naturally occurring small ELM regimes.
C1 Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Maingi, R (reprint author), Princeton Plasma Phys Lab, Receiving 3,Route 1 North, Princeton, NJ 08543 USA.
EM rmaingi@pppl.gov
FU US Department of Energy [DE-AC02-09CH11466]
FX The author acknowledges discussions with K. Burrell, R. Buttery, T.
Evans, S. Gerhardt, A. Garofalo, B. Grierson, R. Hawryluk, A. Hubbard,
J. Hughes, Y.M. Jeon, A. Kirk, A. Loarte, Y.F. Liang, D. Orlov, T.
Osborne, C. Skinner, W. Solomon, and W. Suttrop. The referees are also
thanked, as their comments resulted in substantial improvements. This
work was supported by the US Department of Energy under contract
DE-AC02-09CH11466.
NR 162
TC 7
Z9 7
U1 5
U2 52
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0029-5515
EI 1741-4326
J9 NUCL FUSION
JI Nucl. Fusion
PD NOV
PY 2014
VL 54
IS 11
SI SI
AR 114016
DI 10.1088/0029-5515/54/11/114016
PG 34
WC Physics, Fluids & Plasmas
SC Physics
GA AT5DY
UT WOS:000344964800017
ER
PT J
AU Voronov, DL
Warwick, T
Padmore, HA
AF Voronov, D. L.
Warwick, T.
Padmore, H. A.
TI Multilayer-coated blazed grating with variable line spacing and a
variable blaze angle
SO OPTICS LETTERS
LA English
DT Article
ID EXTREME-ULTRAVIOLET; EFFICIENCY; SPECTROMETER
AB The blazing ability of multilayer-coated blazed gratings (MBGs) was systematically investigated via numerical calculation of the diffraction efficiency with a rigorous electromagnetic simulation code. It was found that the blazing condition is not exact and allows significant deviation from the ideal situation for ultra-dense MBGs. A mismatch of the interfaces of the multilayer (ML) stacks of adjacent grooves results in a modified effective blaze angle, which gives the opportunity to control and tune precisely the blaze angle via a proper choice of ML d-spacing. Also this allows a new kind of x-ray gratings that have a variable line spacing (VLS) as well as a variable blaze angle. Precise adjustment of a local blaze angle of a VLS MBG can be achieved with a laterally graded ML, providing very high diffraction efficiency for the whole area of the grating. (C) 2014 Optical Society of America
C1 [Voronov, D. L.; Warwick, T.; Padmore, H. A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Voronov, DL (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM dlvoronov@lbl.gov
FU US Department of Energy [DE-AC02-05CH11231]
FX This work was supported by the US Department of Energy under contract
number DE-AC02-05CH11231.
NR 11
TC 3
Z9 3
U1 5
U2 22
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 0146-9592
EI 1539-4794
J9 OPT LETT
JI Opt. Lett.
PD NOV 1
PY 2014
VL 39
IS 21
BP 6134
EP 6137
DI 10.1364/OL.39.006134
PG 4
WC Optics
SC Optics
GA AT5MA
UT WOS:000344985900012
PM 25361297
ER
PT J
AU Meinzer, FC
Woodruff, DR
Marias, DE
McCulloh, KA
Sevanto, S
AF Meinzer, Frederick C.
Woodruff, David R.
Marias, Danielle E.
McCulloh, Katherine A.
Sevanto, Sanna
TI Dynamics of leaf water relations components in co-occurring iso- and
anisohydric conifer species
SO PLANT CELL AND ENVIRONMENT
LA English
DT Article
DE anisohydry; drought; isohydry; osmotic potential; turgor
ID PRESSURE-VOLUME RELATIONSHIPS; TEMPERATE DECIDUOUS ANGIOSPERMS; NEGATIVE
TURGOR PRESSURE; SHRUB LARREA-TRIDENTATA; PINYON-JUNIPER WOODLAND;
CHANGE-TYPE DROUGHT; SAP ABSCISIC-ACID; STOMATAL CONDUCTANCE; PROTOPLAST
VOLUME; SONORAN DESERT
AB Because iso- and anisohydric species differ in stomatal regulation of the rate and magnitude of fluctuations in shoot water potential, they may be expected to show differences in the plasticity of their shoot water relations components, but explicit comparisons of this nature have rarely been made. We subjected excised shoots of co-occurring anisohydric Juniperus monosperma and isohydric Pinus edulis to pressure-volume analysis with and without prior artificial rehydration. In J. monosperma, the shoot water potential at turgor loss (Psi(TLP)) ranged from -3.4 MPa in artificially rehydrated shoots to -6.6 MPa in shoots with an initial. of -5.5 MPa, whereas in P. edulis mean Psi(TLP) remained at similar to -3.0 MPa over a range of initial Psi from -0.1 to -2.3 MPa. The shoot osmotic potential at full turgor and the bulk modulus of elasticity also declined sharply with shoot. in J. monosperma, but not in P. edulis. The contrasting behaviour of J. monosperma and P. edulis reflects differences in their capacity for homeostatic regulation of turgor that may be representative of aniso- and isohydric species in general, and may also be associated with the greater capacity of J. monosperma to withstand severe drought.
C1 [Meinzer, Frederick C.; Woodruff, David R.] US Forest Serv, USDA, Pacific NW Res Stn, Corvallis, OR 97331 USA.
[Marias, Danielle E.] Oregon State Univ, Dept Forest Ecosyst & Soc, Corvallis, OR 97331 USA.
[McCulloh, Katherine A.] Univ Wisconsin, Dept Bot, Madison, WI 53706 USA.
[Sevanto, Sanna] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA.
RP Meinzer, FC (reprint author), US Forest Serv, USDA, Pacific NW Res Stn, Corvallis, OR 97331 USA.
EM rick.meinzer@oregonstate.edu
FU Los Alamos National Laboratory [DE-NA0001302]; USDA Forest Service
Pacific Northwest Research Station [DE-NA0001302]; NSF [IBN 09-19871]
FX This work was supported in part by interagency agreement DE-NA0001302
between Los Alamos National Laboratory and the USDA Forest Service
Pacific Northwest Research Station and by NSF grant IBN 09-19871. We are
grateful to Lily Cohen, Adam Collins, Turin Dickman, Emily Kluk, Jacob
Naranjo and several student interns for assistance with sample
collection and field water potential measurements.
NR 64
TC 27
Z9 28
U1 8
U2 60
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0140-7791
EI 1365-3040
J9 PLANT CELL ENVIRON
JI Plant Cell Environ.
PD NOV
PY 2014
VL 37
IS 11
BP 2577
EP 2586
DI 10.1111/pce.12327
PG 10
WC Plant Sciences
SC Plant Sciences
GA AT8UK
UT WOS:000345207100012
PM 24661116
ER
PT J
AU Robert, CAM
Ferrieri, RA
Schirmer, S
Babst, BA
Schueller, MJ
Machado, RAR
Arce, CCM
Hibbard, BE
Gershenzon, J
Turlings, TCJ
Erb, M
AF Robert, Christelle A. M.
Ferrieri, Richard A.
Schirmer, Stefanie
Babst, Benjamin A.
Schueller, Michael J.
Machado, Ricardo A. R.
Arce, Carla C. M.
Hibbard, Bruce E.
Gershenzon, Jonathan
Turlings, Ted C. J.
Erb, Matthias
TI Induced carbon reallocation and compensatory growth as root herbivore
tolerance mechanisms
SO PLANT CELL AND ENVIRONMENT
LA English
DT Article
DE Diabrotica virgifera; (CO2)-C-11; compensatory root growth; plant
herbivore interactions
ID BELOW-GROUND HERBIVORY; INSECT HERBIVORES; CORN-ROOTWORM; RAPID CHANGES;
TEMPORAL-CHANGES; GAS-EXCHANGE; PLANT; RESISTANCE; MAIZE; ACID
AB Upon attack by leaf herbivores, many plants reallocate photoassimilates below ground. However, little is known about how plants respond when the roots themselves come under attack. We investigated induced resource allocation in maize plants that are infested by the larvae Western corn rootworm Diabrotica virgifera virgifera. Using radioactive (CO2)-C-11, we demonstrate that root-attacked maize plants allocate more new C-11 carbon from source leaves to stems, but not to roots. Reduced meristematic activity and reduced invertase activity in attacked maize root systems are identified as possible drivers of this shoot reallocation response. The increased allocation of photoassimilates to stems is shown to be associated with a marked thickening of these tissues and increased growth of stem-borne crown roots. A strong quantitative correlation between stem thickness and root regrowth across different watering levels suggests that retaining photoassimilates in the shoots may help root-attacked plants to compensate for the loss of belowground tissues. Taken together, our results indicate that induced tolerance may be an important strategy of plants to withstand belowground attack. Furthermore, root herbivore-induced carbon reallocation needs to be taken into account when studying plant-mediated interactions between herbivores.
C1 [Robert, Christelle A. M.; Schirmer, Stefanie; Machado, Ricardo A. R.; Arce, Carla C. M.; Erb, Matthias] Max Planck Inst Chem Ecol, Root Herbivore Interact Grp, D-07745 Jena, Germany.
[Robert, Christelle A. M.; Schirmer, Stefanie; Gershenzon, Jonathan] Max Planck Inst Chem Ecol, Dept Biochem, D-07745 Jena, Germany.
[Machado, Ricardo A. R.; Arce, Carla C. M.] Max Planck Inst Chem Ecol, Dept Mol Ecol, D-07745 Jena, Germany.
[Ferrieri, Richard A.; Babst, Benjamin A.; Schueller, Michael J.] Brookhaven Natl Lab, Dept Biosci, Upton, NY 11973 USA.
[Arce, Carla C. M.] Univ Fed Vicosa, Dept Entomol, Vicosa, MG, Brazil.
[Hibbard, Bruce E.] Univ Missouri, USDA ARS, Plant Genet Res Unit, Columbia, MO 65211 USA.
[Turlings, Ted C. J.] Univ Neuchatel, Lab Fundamental & Appl Res Chem Ecol FARCE, CH-2000 Neuchatel, Switzerland.
[Erb, Matthias] Univ Bern, Inst Plant Sci, CH-2013 Bern, Switzerland.
RP Erb, M (reprint author), Univ Bern, Inst Plant Sci, Altenbergrain 21, CH-3013 Bern, Switzerland.
EM matthias.erb@ips.unibe.ch
RI Turlings, Ted/E-8671-2012; Gershenzon, Jonathan/K-1331-2013; Arce,
Carla/P-2295-2015;
OI Turlings, Ted/0000-0002-8315-785X; Gershenzon,
Jonathan/0000-0002-1812-1551; Babst, Benjamin/0000-0001-5657-0633; Erb,
Matthias/0000-0002-4446-9834
FU Swiss National Science Foundation [FN 31000AO-107974, 140196]; Marie
Curie Intra European Fellowship [273107]; Organismal Biology Doctoral
Program of the University of Neuchatel; Brookhaven Science Associates,
LLC [DE-AC02-98CH10886]; US Department of Energy, Office of Biological
and Environmental Research; Max Planck Society; National Centre of
Competence in Research (NCCR) 'Plant Survival', a research programme of
the Swiss National Science Foundation
FX We are grateful to Wade French and Chad Nielson (USDA-ARS-NCARL,
Brookings, SD, USA), and Julie Barry (USDA-ARS, University of Missouri,
Columbia, MO, USA) who kindly supplied D. virgifera eggs. We thank Lena
Kurz for her help with the tolerance measurements. Research activities
by C. A. M. R., T.C.J.T. and M. E. were supported by the Swiss National
Science Foundation (FN 31000AO-107974; 140196) and a Marie Curie Intra
European Fellowship (grant no. 273107). C. A. M. R. was supported by a
travel grant of the Organismal Biology Doctoral Program of the
University of Neuchatel to conduct experiments at BNL. This article has
been authored by Brookhaven Science Associates, LLC under contract
number DE-AC02-98CH10886 with the US Department of Energy, Office of
Biological and Environmental Research, which supported R. A. F., B. A.
B. and M.J.S. This project was partially funded by the Max Planck
Society and the National Centre of Competence in Research (NCCR) 'Plant
Survival', a research programme of the Swiss National Science
Foundation.
NR 48
TC 17
Z9 17
U1 11
U2 73
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0140-7791
EI 1365-3040
J9 PLANT CELL ENVIRON
JI Plant Cell Environ.
PD NOV
PY 2014
VL 37
IS 11
BP 2613
EP 2622
DI 10.1111/pce.12359
PG 10
WC Plant Sciences
SC Plant Sciences
GA AT8UK
UT WOS:000345207100015
PM 24762051
ER
PT J
AU Song, G
Silva, CL
Jenkins-Smith, HC
AF Song, Geoboo
Silva, Carol L.
Jenkins-Smith, Hank C.
TI Cultural Worldview and Preference for Childhood Vaccination Policy
SO POLICY STUDIES JOURNAL
LA English
DT Article
DE childhood vaccination policy; health policy; cultural theory; public
opinion
ID RISK PERCEPTION; RUBELLA VACCINE; UNITED-STATES; POLITICAL-IDEOLOGY;
INTERNET SURVEYS; PERCEIVED RISK; PUBLIC-HEALTH; IMMUNIZATION; MEASLES;
AUTISM
AB In the face of the reemerging threat of preventable diseases and the simultaneous vaccine risk controversy, what explains variations in Americans' policy preferences regarding childhood vaccinations? Using original data from a recent nationwide Internet survey of 1,213 American adults, this research seeks to explain differing public opinions on childhood vaccination policies and related issues of governance. As Mary Douglas and Aaron Wildavsky's grid-group cultural theory of policy preference formation suggests, cultural biases have a significant impact on the formation of preferences toward various vaccination policies. Hierarchs are in support of mandatory vaccination, oppose religious and philosophical exemption, and believe the government should preside over vaccination-related decisions. Fatalists strike a bold contrast in their opposition to mandatory vaccination policy and support for religious and philosophical exemptions and the role of parents in deciding on vaccinations. Falling between hierarchs and fatalists, egalitarian support for vaccinations is stronger than individualists.
C1 [Song, Geoboo] Univ Arkansas, J William Fulbright Coll Arts & Sci, Dept Polit Sci, Fayetteville, AR 72701 USA.
[Silva, Carol L.; Jenkins-Smith, Hank C.] Univ Oklahoma, Dept Polit Sci, Norman, OK 73019 USA.
[Silva, Carol L.] Univ Oklahoma, Ctr Risk Crisis & Management, Norman, OK 73019 USA.
[Jenkins-Smith, Hank C.] Univ Oklahoma, Ctr Energy Secur & Soc, Norman, OK 73019 USA.
[Jenkins-Smith, Hank C.] Sandia Natl Labs, Ctr Energy Secur & Soc, Livermore, CA 94550 USA.
RP Song, G (reprint author), Univ Arkansas, J William Fulbright Coll Arts & Sci, Dept Polit Sci, Fayetteville, AR 72701 USA.
NR 77
TC 5
Z9 5
U1 5
U2 54
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0190-292X
EI 1541-0072
J9 POLICY STUD J
JI Policy Stud. J.
PD NOV
PY 2014
VL 42
IS 4
BP 528
EP 554
DI 10.1111/psj.12076
PG 27
WC Political Science; Public Administration
SC Government & Law; Public Administration
GA AU0YM
UT WOS:000345348100004
ER
PT J
AU Zhang, HJ
Maceira, M
Roux, P
Thurber, C
AF Zhang, Haijiang
Maceira, Monica
Roux, Philippe
Thurber, Clifford
TI Joint Inversion of Body-Wave Arrival Times and Surface-Wave Dispersion
for Three-Dimensional Seismic Structure Around SAFOD
SO PURE AND APPLIED GEOPHYSICS
LA English
DT Article
ID SAN-ANDREAS FAULT; DOUBLE-DIFFERENCE TOMOGRAPHY; TRAVEL-TIMES; VELOCITY
STRUCTURE; HAYWARD FAULT; GUIDED-WAVES; PARKFIELD; CALIFORNIA; ZONE;
ATTENUATION
AB We incorporate body-wave arrival time and surface-wave dispersion data into a joint inversion for three-dimensional P-wave and S-wave velocity structure of the crust surrounding the site of the San Andreas Fault Observatory at Depth. The contributions of the two data types to the inversion are controlled by the relative weighting of the respective equations. We find that the trade-off between fitting the two data types, controlled by the weighting, defines a clear optimal solution. Varying the weighting away from the optimal point leads to sharp increases in misfit for one data type with only modest reduction in misfit for the other data type. All the acceptable solutions yield structures with similar primary features, but the smaller-scale features change substantially. When there is a lower relative weight on the surface-wave data, it appears that the solution over-fits the body-wave data, leading to a relatively rough V (s) model, whereas for the optimal weighting, we obtain a relatively smooth model that is able to fit both the body-wave and surface-wave observations adequately.
C1 [Zhang, Haijiang] Univ Sci & Technol China, Sch Earth & Space Sci, Lab Seismol & Earths Interior, Hefei 230026, Anhui, Peoples R China.
[Maceira, Monica] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Roux, Philippe] Univ Grenoble 1, CNRS, IRD, ISTerre, F-38402 St Martin Dheres, France.
[Thurber, Clifford] Univ Wisconsin, Dept Geosci, Madison, WI 53706 USA.
RP Zhang, HJ (reprint author), Univ Sci & Technol China, Sch Earth & Space Sci, Lab Seismol & Earths Interior, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China.
EM zhang11@ustc.edu.cn
RI roux, philippe/B-8538-2014;
OI Maceira, Monica/0000-0003-1248-2185
FU Chinese government; Natural Science Foundation of China [41274055];
Fundamental Research Funds for the Central Universities [WK2080000053];
US Department of Energy [DE-NA0001523]
FX We thank Yehuda Ben-Zion and Antonio Rovelli for organizing the 40th
Workshop of the International School of Geophysics on "Properties and
Processes of Crustal Fault Zones'' in Erice, Sicily, which motivated the
present work. We are grateful to two anonymous reviewers for their
constructive comments, which we hope have led to substantial improvement
of the manuscript. This research presented here was partly supported by
the Chinese government's executive program for exploring the deep
interior beneath the Chinese continent (SinoProbe-02), Natural Science
Foundation of China under Grant No. 41274055, and Fundamental Research
Funds for the Central Universities (WK2080000053). This research was
also supported by DE-NA0001523 from the US Department of Energy.
NR 52
TC 9
Z9 10
U1 0
U2 14
PU SPRINGER BASEL AG
PI BASEL
PA PICASSOPLATZ 4, BASEL, 4052, SWITZERLAND
SN 0033-4553
EI 1420-9136
J9 PURE APPL GEOPHYS
JI Pure Appl. Geophys.
PD NOV
PY 2014
VL 171
IS 11
BP 3013
EP 3022
DI 10.1007/s00024-014-0806-y
PG 10
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA AT7WD
UT WOS:000345144300010
ER
PT J
AU Johnson, JR
Wing, S
Delamere, PA
AF Johnson, Jay R.
Wing, Simon
Delamere, Peter A.
TI Kelvin Helmholtz Instability in Planetary Magnetospheres
SO SPACE SCIENCE REVIEWS
LA English
DT Review
DE Kelvin-Helmholtz; Plasma transport; Planetary magnetospheres
ID INTERPLANETARY MAGNETIC-FIELD; KINETIC ALFVEN WAVES; INTERACTION
OFMAGNETIC RECONNECTION; MAGNETOPAUSE-BOUNDARY LAYER; DAWN-DUSK
ASYMMETRIES; SOLAR-WIND; PLASMA SHEET; GEOTAIL OBSERVATIONS; EARTHS
MAGNETOPAUSE; ELECTROMAGNETIC-WAVES
AB Kelvin-Helmholtz instability plays a particularly important role in plasma transport at magnetospheric boundaries because it can control the development of a turbulent boundary layer, which governs the transport of mass, momentum, and energy across the boundary. Waves generated at the interface can also couple into body modes in the plasma sheet and inner magnetosphere where they can play an important role in plasma sheet transport and particle energization in the inner magnetosphere. Kinetic and electron-scale effects are important for the development of K-H instability, leading to secondary instabilities and plasma mixing. The development of vortices that entwine magnetosheath field lines with magnetospheric field lines also allows reconnection and the interchange of plasma blobs from open to closed field lines. Dawn-dusk asymmetries in Kelvin-Helmholtz development at planetary boundary layers may result from several effects including plasma corotation, kinetic effects, magnetic geometry, or asymmetric distribution of plasma. Examples are provided throughout the solar system illustrating the pervasive effects of the Kelvin-Helmholtz instability on plasma transport.
C1 [Johnson, Jay R.] Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA.
[Wing, Simon] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
[Delamere, Peter A.] Univ Alaska, Inst Geophys, Fairbanks, AK 99775 USA.
RP Johnson, JR (reprint author), Princeton Univ, Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM jrj@pppl.gov; simon.wing@jhuapl.edu; peter.delamere@gi.alaska.edu
FU NSF [ATM-0802715, AGS-1058456, ATM0902730, AGS-1203299]; NASA
[NNX13AE12G, NNH09AM53I, NNH09AK63I, NNH11AR07I]; DOE
[DE-AC02-09CH11466]; International Space Science Institute (ISSI)
International Teams Program; NSF GEM
FX Simon Wing gratefully acknowledges support from NSF Grants ATM-0802715,
and AGS-1058456 and NASA Grant NNX13AE12G. Jay Johnson was funded by
NASA grants (NNH09AM53I, NNH09AK63I, and NNH11AR07I), NSF Grants
ATM0902730 and AGS-1203299, and DOE contract DE-AC02-09CH11466. We
acknowledge the support of the International Space Science Institute
(ISSI) International Teams Program, which made it possible for a small
team of scientists to convene and have in-depth, informal discussions on
topics relevant to this paper. Last but not least, we also thank NSF GEM
for supporting Plasma entry and transport into and within the
magnetotail (PET) Focus Group, which provided a forum for fruitful
discussions of the topics covered in this paper.
NR 175
TC 16
Z9 16
U1 2
U2 9
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0038-6308
EI 1572-9672
J9 SPACE SCI REV
JI Space Sci. Rev.
PD NOV
PY 2014
VL 184
IS 1-4
BP 1
EP 31
DI 10.1007/s11214-014-0085-z
PG 31
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AU0NJ
UT WOS:000345319600001
ER
PT J
AU Wing, S
Johnson, JR
Chaston, CC
Echim, M
Escoubet, CP
Lavraud, B
Lemon, C
Nykyri, K
Otto, A
Raeder, J
Wang, CP
AF Wing, S.
Johnson, J. R.
Chaston, C. C.
Echim, M.
Escoubet, C. P.
Lavraud, B.
Lemon, C.
Nykyri, K.
Otto, A.
Raeder, J.
Wang, C. -P.
TI Review of Solar Wind Entry into and Transport Within the Plasma Sheet
SO SPACE SCIENCE REVIEWS
LA English
DT Review
DE Solar wind entry; Particle transport; Double cusp (lobe) reconnection;
Kelvin-Helmholtz; Kinetic Alfven wave (KAW); Entropy; Fast flow;
Turbulence; Ion to electron temperature ratio; Ion outflow
ID INTERPLANETARY MAGNETIC-FIELD; KELVIN-HELMHOLTZ INSTABILITY; LATITUDE
BOUNDARY-LAYER; KINETIC ALFVEN WAVES; INTERACTION OFMAGNETIC
RECONNECTION; IMPULSIVE PENETRATION MECHANISM; DUAL LOBE RECONNECTION;
DAWN-DUSK ASYMMETRIES; GLOBAL MHD SIMULATION; POLAR-CAP BOUNDARY
AB The plasma sheet is populated in part by the solar wind plasma. Four solar entry mechanisms are examined: (1) double cusp or double lobe reconnection, (2) Kelvin-Helmholtz Instability (KHI), (3) Kinetic Alfven waves (KAW), and (4) Impulsive Penetration. These mechanisms can efficiently fill the plasma sheet with cold dense ions during northward interplanetary magnetic field (IMF). The solar wind ions appear to have been heated upon entry along the plasma sheet dawn flank. The cold-component (solar wind origin) ion density is higher on the dawn flank than the dusk flank. The asymmetric evolution of the KAW and magnetic reconnection in association with the KHI at the dawn and dusk flank magnetopause may partly produce the dawn-dusk temperature and density asymmetries. Solar wind that crosses the magnetopause lowers the specific entropy (s = p/rho(gamma)) of the plasma sheet along the flanks. Subsequent transport of the cold ions from the flanks to the midnight meridian increases s by a factor of 5. T-i, T-e, s(i), and s(e) increase when the solar wind particles are transported across the magnetopause, but T-i/T-e is roughly conserved. Within the magnetotail, E x B and curvature and gradient drifts play important roles in the plasma transport and can explain the large features seen in the plasma sheet. Turbulence can also play a significant role, particularly in the cold plasma transport from the flanks to the midnight meridian. Total entropy (S = pV(gamma)) conservation provides important constraints on the plasma sheet transport, e.g., fast flows.
C1 [Wing, S.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
[Johnson, J. R.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Chaston, C. C.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Chaston, C. C.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia.
[Echim, M.] Inst Space Aeron, Brussels, Belgium.
[Echim, M.] Inst Space Sci, Magurele, Romania.
[Escoubet, C. P.] ESA ESTEC SCI RSSD, Noordwijk, Netherlands.
[Lavraud, B.] Univ Toulouse, Inst Rech Astrophys & Planetol, Toulouse, France.
[Lavraud, B.] Ctr Natl Rech Sci, Toulouse, France.
[Lemon, C.] Aerosp Corp, El Segundo, CA 90245 USA.
[Nykyri, K.] Embry Riddle Aeronaut Univ, Daytona Beach, FL USA.
[Otto, A.] Univ Alaska, Fairbanks, AL 99701 USA.
[Raeder, J.] Univ New Hampshire, Durham, NH 03824 USA.
[Wang, C. -P.] Univ Calif Los Angeles, Los Angeles, CA USA.
RP Wing, S (reprint author), Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
EM simon.wing@jhuapl.edu
RI Echim, Marius/F-1813-2010;
OI Echim, Marius/0000-0001-7038-9494; Nykyri, Katariina/0000-0002-6905-9487
FU International Space Science Institute (ISSI), Bern, Switzerland; NSF
[ATM-0802715, AGS-1058456, ATM0902730, AGS-1203299, ATM-0902907,
AGS-1303579, 0847120, AGS-1003874]; NASA [NNX13AE12G, NNH09AM53I,
NNH09AK63I, NNH11AR07I, NNX09AF49G]; DOE [DE-AC02-09CH11466]; NASA
THEMIS mission [SA405826326]; Australian Research Council [FT110100316];
European Community [313038/STORM]; Romanian Ministry of National
Education, CNCS, UEFISCDI [PN-II-ID PCE-2012-4-0418]; Interuniversity
Attraction Poles Programme; Belgian Science Policy Office [IAP P7/08
CHARM]; NSF GEM
FX International Space Science Institute (ISSI), Bern, Switzerland funded
and hosted our International Team "Plasma entry and transport in the
plasma sheet" that led to the publication of this paper. We are
especially grateful for the ISSI facility that allows for in-depth,
informal, and inspiring discussions. We acknowledge the contribution of
Prof. Joseph Lemaire to the mechanism of impulsive penetration in this
paper. Simon Wing gratefully acknowledges supports from NSF Grants
ATM-0802715, and AGS-1058456 and NASA Grant NNX13AE12G. Jay Johnson was
funded by NASA grants (NNH09AM53I, NNH09AK63I, and NNH11AR07I), NSF
Grants ATM0902730 and AGS-1203299, and DOE contract DE-AC02-09CH11466.
Joachim Raeder acknowledges support from the NASA THEMIS mission (UCB
subcontract SA405826326) and NSF grants ATM-0902907 and AGS-1303579.
Chris Chaston was supported by NASA grant NNX09AF49G and Australian
Research Council FT110100316. Katariina Nykyri was supported by NSF
grant 0847120. Marius Echim acknowledges support from the European
Community's Seventh Framework Programme (FP7/2007-2013) under grant
agreement no 313038/STORM, from the Romanian Ministry of National
Education, CNCS, UEFISCDI, project number PN-II-ID PCE-2012-4-0418, and
from the Interuniversity Attraction Poles Programme initiated by the
Belgian Science Policy Office (IAP P7/08 CHARM). Colby Lemon was
supported by NSF grant AGS-1003874. We also thank NSF GEM for supporting
Plasma entry and transport into and within the magnetotail (PET) Focus
Group, which provided a forum for fruitful discussions of the topics
covered in this paper.
NR 321
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U1 3
U2 21
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0038-6308
EI 1572-9672
J9 SPACE SCI REV
JI Space Sci. Rev.
PD NOV
PY 2014
VL 184
IS 1-4
BP 33
EP 86
DI 10.1007/s11214-014-0108-9
PG 54
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AU0NJ
UT WOS:000345319600002
ER
PT J
AU Niezrecki, C
Avitabile, P
Chen, JL
Sherwood, J
Lundstrom, T
LeBlanc, B
Hughes, S
Desmond, M
Beattie, A
Rumsey, M
Klute, SM
Pedrazzani, R
Werlink, R
Newman, J
AF Niezrecki, Christopher
Avitabile, Peter
Chen, Julie
Sherwood, James
Lundstrom, Troy
LeBlanc, Bruce
Hughes, Scott
Desmond, Michael
Beattie, Alan
Rumsey, Mark
Klute, Sandra M.
Pedrazzani, Renee
Werlink, Rudy
Newman, John
TI Inspection and monitoring of wind turbine blade-embedded wave defects
during fatigue testing
SO STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
LA English
DT Article
DE Digital image correlation; shearography; fiber-optic sensing; damage
detection; composites; wind turbine blade; defect
AB The research presented in this article focuses on a 9-m CX-100 wind turbine blade, designed by a team led by Sandia National Laboratories and manufactured by TPI Composites Inc. The key difference between the 9-m blade and baseline CX-100 blades is that this blade contains fabric wave defects of controlled geometry inserted at specified locations along the blade length. The defect blade was tested at the National Wind Technology Center at the National Renewable Energy Laboratory using a schedule of cycles at increasing load level until failure was detected. Researchers used digital image correlation, shearography, acoustic emission, fiber-optic strain sensing, thermal imaging, and piezoelectric sensing as structural health monitoring techniques. This article provides a comparison of the sensing results of these different structural health monitoring approaches to detect the defects and track the resultant damage from the initial fatigue cycle to final failure.
C1 [Niezrecki, Christopher; Avitabile, Peter; Chen, Julie; Sherwood, James; Lundstrom, Troy; LeBlanc, Bruce] Univ Massachusetts, Dept Mech Engn, Lowell, MA 01854 USA.
[Hughes, Scott; Desmond, Michael] Natl Renewable Energy Lab, Golden, CO USA.
[Beattie, Alan; Rumsey, Mark] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Klute, Sandra M.; Pedrazzani, Renee] Luna Innovations Inc, Blacksburg, VA USA.
[Werlink, Rudy] NASA, Kennedy Space Ctr, Merritt Isl, FL USA.
[Newman, John] Laser Technol Inc, Norristown, PA USA.
RP Niezrecki, C (reprint author), Univ Massachusetts, Lowell, MA 01854 USA.
EM Christopher_Niezrecki@uml.edu
FU US Department of Energy (DOE) [DE-EE001374]; US Department of Energy's
National Nuclear Security Administration [DE-AC04-94AL85000]
FX The authors appreciate the financial support for this work provided by
the US Department of Energy (DOE) (DE-EE001374). Any opinions, findings,
conclusions, or recommendations expressed in this material are those of
the authors and do not necessarily reflect the views of DOE. 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 24
TC 6
Z9 7
U1 1
U2 27
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1475-9217
EI 1741-3168
J9 STRUCT HEALTH MONIT
JI Struct. Health Monit.
PD NOV
PY 2014
VL 13
IS 6
BP 629
EP 643
DI 10.1177/1475921714532995
PG 15
WC Engineering, Multidisciplinary; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA AT9EQ
UT WOS:000345231200007
ER
PT J
AU Mascarenas, D
Plont, C
Brown, C
Cowell, M
Jameson, NJ
Block, J
Djidjev, S
Hahn, H
Farrar, C
AF Mascarenas, David
Plont, Crystal
Brown, Christina
Cowell, Martin
Jameson, N. Jordan
Block, Jessica
Djidjev, Stephanie
Hahn, Heidi
Farrar, Charles
TI A vibro-haptic human-machine interface for structural health monitoring
SO STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
LA English
DT Article
DE Haptic; sensory substitution; human echolocation; actuator;
human-machine interface; vibro-tactile; vibro-haptic
ID SUPPORT VECTOR MACHINES; WIRELESS SENSORS; MONKEY HAND; SKIN;
MECHANORECEPTORS; FREQUENCY; VIBRATION; DYNAMICS; STIMULI; EVENTS
AB The goal of the structural health monitoring community has been to endow physical systems with a nervous system not unlike those commonly found in living organisms. Typically, the structural health monitoring community has attempted to do this by instrumenting structures with a variety of sensors and then applying various signal processing and classification procedures to the data in order to detect the presence of damage, the location of damage, the severity of damage, and to estimate the remaining useful life of the structure. This procedure has had some success, but we are still a long way from achieving the performance of nervous systems found in biology. This is primarily because contemporary classification algorithms do not have the performance required. In many cases, expert judgment is superior to automated classification. This work introduces a new paradigm. We propose interfacing the human nervous system to the distributed sensor network located on the structure and developing new techniques to enable human-machine cooperation. The results from the field of sensory substitution suggest this should be possible. This study investigates a vibro-haptic human-machine interface for structural health monitoring. The investigation was performed using a surrogate three-story structure. The structure features three nonlinearity-inducing bumpers to simulate damage. Accelerometers are placed on each floor to measure the response of the structure to a harmonic base excitation. The accelerometer measurements are preprocessed. The preprocessed data are then encoded as a vibro-tactile stimulus. Human subjects were then subjected to the vibro-tactile stimulus and asked to characterize the damage in the structure.
C1 [Mascarenas, David; Farrar, Charles] Los Alamos Natl Lab, Engn Inst, Los Alamos, NM 87545 USA.
[Plont, Crystal; Brown, Christina] Univ New Mexico, Dept Mech Engn, Albuquerque, NM 87131 USA.
[Cowell, Martin] Colorado Sch Mines, Dept Mech Engn, Golden, CO 80401 USA.
[Jameson, N. Jordan] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA.
[Block, Jessica] Georgia Inst Technol, Dept Elect Engn, Atlanta, GA 30332 USA.
[Djidjev, Stephanie] Univ Calif Berkeley, Dept Comp Sci, Berkeley, CA 94720 USA.
[Hahn, Heidi] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Mascarenas, D (reprint author), Los Alamos Natl Lab, Engn Inst, POB 1663, Los Alamos, NM 87545 USA.
EM dmascarenas@lanl.gov
OI Farrar, Charles/0000-0001-6533-6996
NR 42
TC 7
Z9 7
U1 1
U2 11
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1475-9217
EI 1741-3168
J9 STRUCT HEALTH MONIT
JI Struct. Health Monit.
PD NOV
PY 2014
VL 13
IS 6
BP 671
EP 685
DI 10.1177/1475921714556569
PG 15
WC Engineering, Multidisciplinary; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA AT9EQ
UT WOS:000345231200010
ER
PT J
AU Dennis, EA
Gundlach-Graham, AW
Ray, SJ
Enke, CG
Barinaga, CJ
Koppenaal, DW
Hieftje, GM
AF Dennis, Elise A.
Gundlach-Graham, Alexander W.
Ray, Steven J.
Enke, Christie G.
Barinaga, Charles J.
Koppenaal, David W.
Hieftje, Gary M.
TI Zoom-TOFMS: addition of a constant-momentum-acceleration "zoom" mode to
time-of-flight mass spectrometry
SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY
LA English
DT Article
DE Mass spectrometry; ICP-MS; Spectroscopy; Instrumentation; Metals; Heavy
metals
ID ELEMENTAL ANALYSIS; PERFORMANCE; RESOLUTION; ENERGY; CONSTRUCTION;
DETECTOR; DESIGN; RANGE
AB In this study, we demonstrate the performance of a new mass spectrometry concept called zoom time-of-flight mass spectrometry (zoom-TOFMS). In our zoom-TOFMS instrument, we combine two complementary types of TOFMS: conventional, constant-energy acceleration (CEA) TOFMS and constant-momentum acceleration (CMA) TOFMS to provide complete mass-spectral coverage as well as enhanced resolution and duty factor for a narrow, targeted mass region, respectively. Alternation between CEA- and CMA-TOFMS requires only that electrostatic instrument settings (i.e., reflectron and ion optics) and ion acceleration conditions be changed. The prototype zoom-TOFMS instrument has orthogonal-acceleration geometry, a total field-free distance of 43 cm, and a direct-current glow-discharge ionization source. Experimental results demonstrate that the CMA-TOFMS "zoom" mode offers resolution enhancement of 1.6 times over single-stage acceleration CEA-TOFMS. For the atomic mass range studied here, the maximum resolving power at full-width half-maximum observed for CEA-TOFMS was 1,610 and for CMA-TOFMS the maximum was 2,550. No difference in signal-to-noise (S/N) ratio was observed between the operating modes of zoom-TOFMS when both were operated at equivalent repetition rates. For a 10-kHz repetition rate, S/N values for CEA-TOFMS varied from 45 to 990 and from 67 to 10,000 for CMA-TOFMS. This resolution improvement is the result of a linear TOF-to-mass scale and the energy-focusing capability of CMA-TOFMS. Use of CMA also allows ions outside a given m/z range to be rejected by simple ion-energy barriers to provide a substantial improvement in duty factor.
C1 [Dennis, Elise A.; Gundlach-Graham, Alexander W.; Ray, Steven J.; Enke, Christie G.; Hieftje, Gary M.] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA.
[Enke, Christie G.] Univ New Mexico, Dept Chem & Chem Biol, Albuquerque, NM 87131 USA.
[Barinaga, Charles J.; Koppenaal, David W.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Hieftje, GM (reprint author), Indiana Univ, Dept Chem, Bloomington, IN 47405 USA.
EM hieftje@indiana.edu
RI Gundlach-Graham, Alexander/B-6069-2011;
OI Gundlach-Graham, Alexander/0000-0003-4806-6255; Ray,
Steven/0000-0001-5675-1258
FU National Science Foundation [DBI-1062846]; US Department of Energy
[DE-FG02-09ER14980, DE-AC06-76RLO-1830op]
FX This work was funded in part by the National Science Foundation through
grant DBI-1062846. Partial salary support was provided by the US
Department of Energy through grant DE-FG02-09ER14980. The authors would
like to thank the Edward G. Blair Mechanical Instrument Services and the
Electronic Instrument Services Facilities at Indiana University for
their assistance with instrument construction. This work was performed
in collaboration with Pacific Northwest National Laboratory, operated
for the US Department of Energy by Battelle Memorial Institute under
contract DE-AC06-76RLO-1830op.
NR 39
TC 4
Z9 4
U1 0
U2 16
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1618-2642
EI 1618-2650
J9 ANAL BIOANAL CHEM
JI Anal. Bioanal. Chem.
PD NOV
PY 2014
VL 406
IS 29
BP 7419
EP 7430
DI 10.1007/s00216-014-7875-8
PG 12
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA AT3UL
UT WOS:000344860300002
PM 24866712
ER
PT J
AU Ho, JM
Newcomer, MB
Ragain, CM
Gascon, JA
Batista, ER
Loria, JP
Batista, VS
AF Ho, Junming
Newcomer, Michael B.
Ragain, Christina M.
Gascon, Jose A.
Batista, Enrique R.
Loria, J. Patrick
Batista, Victor S.
TI MoD-QM/MM Structural Refinement Method: Characterization of Hydrogen
Bonding in the Oxytricha nova G-Quadruplex
SO JOURNAL OF CHEMICAL THEORY AND COMPUTATION
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATIONS; POLARIZABLE FORCE-FIELD; NMR
CHEMICAL-SHIFTS; FREE-ENERGY SIMULATIONS; ADAPTED ADMA APPROACH;
ELECTROSTATIC POTENTIALS; GUANINE QUARTETS; ORBITAL METHOD;
PROTON-TRANSFER; X-POL
AB A generalization of the Moving-Domain Quantum Mechanics/Molecular Mechanics (MoD-QM/MM) hybrid method [Gascon, J. A.; Leung, S. S. F.; Batista, E. R.; Batista, V. S. J. Chem. Theory Comput. 2006, 2, 175186] is introduced to provide a self-consistent computational protocol for structural refinement of extended systems. The method partitions the system into molecular domains that are iteratively optimized as quantum mechanical (QM) layers embedded in their surrounding molecular environment to obtain an ab initio quality description of the geometry and the molecular electrostatic potential of the extended system composed of those constituent fragments. The resulting methodology is benchmarked as applied to model systems that allow for full QM optimization as well as through refinement of the hydrogen bonding geometry in Oxytricha nova guanine quadruplex for which several studies have been reported, including the X-ray structure and NMR data. Calculations of H-1 NMR chemical shifts based on the gauge independent atomic orbital (GIAO) method and direct comparisons with experiments show that solvated MoD-QM/MM structures, sampled from explicit solvent molecular dynamics simulations, allow for NMR simulations in much improved agreement with experimental data than models based on the X-ray structure or those optimized using classical molecular mechanics force fields.
C1 [Ho, Junming; Newcomer, Michael B.; Ragain, Christina M.; Gascon, Jose A.; Loria, J. Patrick; Batista, Victor S.] Yale Univ, Dept Chem, New Haven, CT 06520 USA.
[Batista, Enrique R.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Loria, J. Patrick] Yale Univ, Dept Mol Biophys & Biochem, New Haven, CT 06520 USA.
RP Batista, VS (reprint author), Yale Univ, Dept Chem, POB 208107, New Haven, CT 06520 USA.
EM victor.batista@yale.edu
RI Ho, Junming /A-1070-2012; Gascon, Joaquim/M-3598-2015; Gascon, Jose
/N-5702-2016
OI Ho, Junming /0000-0001-9381-924X; Gascon, Joaquim/0000-0002-5045-1585;
Gascon, Jose /0000-0002-4176-9030
FU National Science Foundation [NSF CHE-0911520]; National Institutes of
Health (NIH) [1R01GM10621-01A1]; Agency for Science, Technology, and
Research; NIH; NSF [CHE-0847340, MCB 1121372]; LANL CNLS Summer Program;
LDRD program at Los Alamos National Laboratory (LANL); U.S. Department
of Energy [DE-AC5206NA25396]
FX The authors thank the two reviewers of the manuscript for their valuable
comments. V.S.B. acknowledges supercomputer time from the National
Energy Research Scientific Computing Center (NERSC) and support from the
National Science Foundation (NSF CHE-0911520). Development of the
MoD-QM/MM approach was partially funded by the National Institutes of
Health (NIH) grant 1R01GM10621-01A1. J.H. acknowledges the Agency for
Science, Technology, and Research for support. C.M.R. acknowledges
support from the NIH Biophysical Training Grant. J.A.G. acknowledges
support from NSF (CHE-0847340). J.P.L. acknowledges support from NSF MCB
1121372. M.B.N. acknowledges support from the LANL CNLS Summer Program
and E.R.B. from the LDRD program at Los Alamos National Laboratory
(LANL). LANL is operated by Los Alamos National Security, LLC, for the
National Nuclear Security Administration of the U.S. Department of
Energy under Contract DE-AC5206NA25396
NR 125
TC 5
Z9 5
U1 1
U2 20
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1549-9618
EI 1549-9626
J9 J CHEM THEORY COMPUT
JI J. Chem. Theory Comput.
PD NOV
PY 2014
VL 10
IS 11
BP 5125
EP 5135
DI 10.1021/ct500571k
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA AT4JI
UT WOS:000344905300034
PM 26584390
ER
PT J
AU Nelson, AT
Rittman, DR
White, JT
Dunwoody, JT
Kato, M
McClellan, KJ
AF Nelson, Andrew T.
Rittman, Dylan R.
White, Joshua T.
Dunwoody, John T.
Kato, Masato
McClellan, Kenneth J.
TI An Evaluation of the Thermophysical Properties of Stoichiometric CeO2 in
Comparison to UO2 and PuO2
SO JOURNAL OF THE AMERICAN CERAMIC SOCIETY
LA English
DT Article
ID INERT MATRIX FUEL; THERMAL-DIFFUSIVITY MEASUREMENTS; URANIUM-DIOXIDE;
SOLID-SOLUTION; PHASE-DIAGRAM; ELECTRICAL-PROPERTIES; HEAT-CAPACITY;
MIXED-OXIDE; CONDUCTIVITY; PLUTONIUM
AB The thermal conductivity of stoichiometric CeO2 was determined through measurement of thermal expansion from 313 to 1723 K, thermal diffusivity from 298 to 1473 K, and specific heat capacity from 313 to 1373 K. The thermal conductivity was then calculated as the product of the density, thermal diffusivity, and specific heat capacity. The thermal conductivity was found to obey an (A + BT)(-1) relationship with A = 6.776x10(-2) m center dot K center dot W-1 and B = 2.793 x 10(-4) m center dot W-1. Extrapolations of applied models were made to provide suggested data for the specific heat capacity, thermal diffusivity, and thermal conductivity data up to 1723 K. Results of thermal expansion and heat capacity measurements agreed well with the limited low-temperature data available in the literature. The thermal conductivity values provided in the current study are significantly higher than the only high-temperature data located for CeO2. This is attributed to the tendency of CeO2 to rapidly reduce at elevated temperatures given the available partial pressure of O-2 in air at ambient pressure. The CeO2 data are compared to literature values for UO2 and PuO2 to evaluate its suitability as a surrogate in nuclear fuel systems where thermal transport is a primary criterion for performance
C1 [Nelson, Andrew T.; Rittman, Dylan R.; White, Joshua T.; Dunwoody, John T.; McClellan, Kenneth J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Kato, Masato] Japan Atom Energy Agcy, Tokai, Ibaraki 3191194, Japan.
RP Nelson, AT (reprint author), Los Alamos Natl Lab, POB 1667, Los Alamos, NM 87545 USA.
EM atnelson@lanl.gov
OI Nelson, Andrew/0000-0002-4071-3502
FU U.S. Department of Energy, Office of Nuclear Energy Fuel Cycle Research
and Development program; U.S. Department of Energy Nuclear Energy
University Program [DE-NE0000711]; agency of the United States
Government
FX The support of the U.S. Department of Energy, Office of Nuclear Energy
Fuel Cycle Research and Development program is gratefully acknowledged.
Portions of this work were supported by the U.S. Department of Energy
Nuclear Energy University Program under contract DE-NE0000711. This
report was prepared as an account of work sponsored by an agency of the
United States Government. Neither the United States Government nor any
agency thereof, nor any of their employees, makes any warranty, express
or implied, or assumes any legal liability or responsibility for the
accuracy, completeness, or usefulness of any information, apparatus,
product, or process disclosed, or represents that its use would not
infringe privately owned rights. Reference herein to any specific
commercial product, process, or service by trade name, trademark,
manufacturer, or otherwise does not necessarily constitute or imply its
endorsement, recommendation, or favoring by the United States Government
or any agency thereof. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or any agency thereof.
NR 49
TC 4
Z9 4
U1 1
U2 30
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0002-7820
EI 1551-2916
J9 J AM CERAM SOC
JI J. Am. Ceram. Soc.
PD NOV
PY 2014
VL 97
IS 11
BP 3652
EP 3659
DI 10.1111/jace.13170
PG 8
WC Materials Science, Ceramics
SC Materials Science
GA AT2QT
UT WOS:000344779900049
ER
PT J
AU Paulauskas, T
Buurma, C
Colegrove, E
Stafford, B
Guo, Z
Chan, MKY
Sun, C
Kim, MJ
Sivananthan, S
Klie, RF
AF Paulauskas, Tadas
Buurma, Christopher
Colegrove, Eric
Stafford, Brian
Guo, Zhao
Chan, Maria K. Y.
Sun, Ce
Kim, Moon J.
Sivananthan, Sivalingam
Klie, Robert F.
TI Atomic scale study of polar Lomer-Cottrell and Hirth lock dislocation
cores in CdTe
SO ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES
LA English
DT Article
DE Lomer-Cottrell dislocations; Hirth lock dislocations; stair-rod
dislocations; dislocation cores; HAADF; STEM; XEDS; CdTe
ID SOLAR-CELLS; SEMICONDUCTORS; DISPLACEMENT; EFFICIENCY; DIAMOND; STRAIN;
GLIDE
AB Dislocation cores have long dominated the electronic and optical behaviors of semiconductor devices and detailed atomic characterization is required to further explore their effects. Miniaturization of semiconductor devices to nanometre scale also puts emphasis on a material's mechanical properties to withstand failure due to processing or operational stresses. Sessile junctions of dislocations provide barriers to propagation of mobile dislocations and may lead to work-hardening. The sessile Lomer-Cottrell and Hirth lock dislocations, two stable lowest elastic energy stair-rods, are studied in this paper. More specifically, using atomic resolution high-angle annular dark-field imaging and atomic-column-resolved X-ray spectrum imaging in an aberration-corrected scanning transmission electron microscope, dislocation core structures are examined in zinc-blende CdTe. A procedure is outlined for atomic scale analysis of dislocation junctions which allows determination of their identity with specially tailored Burgers circuits and also formation mechanisms of the polar core structures based on Thompson's tetrahedron adapted to reactions of polar dislocations as they appear in CdTe and other zinc-blende solids. Strain fields associated with the dislocations calculated via geometric phase analysis are found to be diffuse and free of `hot spots' that reflect compact structures and low elastic energy of the pure-edge stair-rods.
C1 [Paulauskas, Tadas; Buurma, Christopher; Colegrove, Eric; Stafford, Brian; Guo, Zhao; Sivananthan, Sivalingam; Klie, Robert F.] Univ Illinois, Dept Phys, Chicago, IL 60607 USA.
[Colegrove, Eric] Natl Renewable Energy Lab, Boulder, CO USA.
[Chan, Maria K. Y.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Sun, Ce; Kim, Moon J.] Univ Texas Dallas, Dept Mat Sci & Engn, Dallas, TX 75230 USA.
RP Klie, RF (reprint author), Univ Illinois, Dept Phys, Chicago, IL 60607 USA.
EM rfklie@uic.edu
RI SUN, CE/G-7946-2012; Kim, Moon/A-2297-2010
OI SUN, CE/0000-0001-6310-8180;
FU US Department of Energy Sunshot Program [DOE-EE00005659]; US Department
of Energy, Office of Science, Office of Basic Energy Sciences
[DE-AC02-06CH11357]
FX This work was supported by a grant from the US Department of Energy
Sunshot Program (DOE-EE00005659). Use of the Center for Nanoscale
Materials was supported by the US Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-06CH11357.
NR 25
TC 4
Z9 4
U1 4
U2 48
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0108-7673
EI 1600-5724
J9 ACTA CRYSTALLOGR A
JI Acta Crystallogr. Sect. A
PD NOV
PY 2014
VL 70
BP 524
EP 531
DI 10.1107/S2053273314019639
PN 6
PG 8
WC Chemistry, Multidisciplinary; Crystallography
SC Chemistry; Crystallography
GA AT0AM
UT WOS:000344599300002
ER
PT J
AU Whitfield, RE
Welberry, TR
Pasciak, M
Goossens, DJ
AF Whitfield, R. E.
Welberry, T. R.
Pasciak, M.
Goossens, D. J.
TI Use of bond-valence sums in modelling the diffuse scattering from PZN
(PbZn1/3Nb2/3O3)
SO ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES
LA English
DT Article
DE neutron scattering; X-ray scattering; relaxor ferroelectrics; single
crystals; short-range order; diffuse scattering; PZN
ID INTENSITY POWDER DIFFRACTOMETER; LOCAL-STRUCTURE; MONTE-CARLO;
PARAMETERS; REFINEMENT; DISORDER; SYSTEM; WOMBAT; PAIR
AB This work extends previous efforts to model diffuse scattering from PZN (PbZn1/3Nb2/3O3). Earlier work [Welberry et al. (2005). J. Appl. Cryst.38, 639-647; Welberry et al. (2006). Phys. Rev. B, 74, 224108] is highly prescriptive, using Monte Carlo simulation with very artificial potentials to induce short-range-order structures which were deduced as necessary from inspection of the data. While this gives valid results for the nature of the local structure, it does not strongly relate these structures to underlying crystal chemistry. In that work, the idea of the bond-valence sum was used as a guide to the expected behaviour of the atoms. This paper extends the use of the bond-valence sum from a qualitative guide to becoming a key aspect of the potential experienced by the atoms, through the idea of the global instability index, whose square has been shown to be proportional to the density functional theory energy of some systems when close to the minimum energy configuration.
C1 [Whitfield, R. E.; Welberry, T. R.; Pasciak, M.; Goossens, D. J.] Australian Natl Univ, Res Sch Chem, Canberra, ACT 0200, Australia.
[Whitfield, R. E.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Pasciak, M.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
RP Whitfield, RE (reprint author), Australian Natl Univ, Res Sch Chem, GPO Box 4, Canberra, ACT 0200, Australia.
EM whitfieldre@ornl.gov
RI Pasciak, Marek/G-5983-2014; Welberry, Thomas/H-7847-2014; Whitfield,
Ross/P-2452-2015
OI Pasciak, Marek/0000-0002-3902-8874; Welberry,
Thomas/0000-0002-6906-9191; Whitfield, Ross/0000-0002-9852-1044
FU Australian Institute of Nuclear Science and Engineering; Australian
Research Council; NCI National Facility at the ANU; US Department of
Energy, Office of Science, Office of Basic Energy Sciences
[DE-AC02-06CH11357]; Scientific User Facilities Division, Office of
Basic Energy Sciences, US Department of Energy
FX DJG and REW gratefully acknowledge the support of the Australian
Institute of Nuclear Science and Engineering. The support of the
Australian Research Council and the NCI National Facility at the ANU is
also gratefully acknowledged. Use of the Advanced Photon Source was
supported by the US Department of Energy, Office of Science, Office of
Basic Energy Sciences, under contract No. DE-AC02-06CH11357. Part of
this work was sponsored by the Scientific User Facilities Division,
Office of Basic Energy Sciences, US Department of Energy.
NR 34
TC 2
Z9 2
U1 1
U2 51
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0108-7673
EI 1600-5724
J9 ACTA CRYSTALLOGR A
JI Acta Crystallogr. Sect. A
PD NOV
PY 2014
VL 70
BP 626
EP 635
DI 10.1107/S2053273314016143
PN 6
PG 10
WC Chemistry, Multidisciplinary; Crystallography
SC Chemistry; Crystallography
GA AT0AM
UT WOS:000344599300011
ER
PT J
AU Jorgensen, MRV
Hathwar, VR
Sist, M
Wang, XP
Hoffmann, CM
Briseno, AL
Overgaard, J
Iversen, BB
AF Jorgensen, Mads R. V.
Hathwar, Venkatesha R.
Sist, Mattia
Wang, Xiaoping
Hoffmann, Christina M.
Briseno, Alejandro L.
Overgaard, Jacob
Iversen, Bo B.
TI Accurate atomic displacement parameters from time-of-flight
neutron-diffraction data at TOPAZ
SO ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES
LA English
DT Article
DE hydrogen-atom modelling; anisotropic displacement parameters; neutron
diffraction; X-ray structure refinement; electron-density refinement
ID X-RAY-DIFFRACTION; WAVE-FUNCTIONS; CHARGE-DENSITIES; REFINEMENT;
CRYSTALS; MOLECULE
AB Accurate atomic displacement parameters (ADPs) are a good indication of high-quality diffraction data. Results from the newly commissioned time-of-flight Laue diffractometer TOPAZ at the SNS are presented. Excellent agreement is found between ADPs derived independently from the neutron and X-ray data emphasizing the high quality of the data from the time-of-flight Laue diffractometer.
C1 [Jorgensen, Mads R. V.; Hathwar, Venkatesha R.; Sist, Mattia; Overgaard, Jacob; Iversen, Bo B.] Aarhus Univ, Dept Chem, Ctr Mat Crystallog, DK-8000 Aarhus C, Denmark.
[Jorgensen, Mads R. V.; Hathwar, Venkatesha R.; Sist, Mattia; Overgaard, Jacob; Iversen, Bo B.] Aarhus Univ, INano, DK-8000 Aarhus C, Denmark.
[Wang, Xiaoping; Hoffmann, Christina M.] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA.
[Briseno, Alejandro L.] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA.
RP Overgaard, J (reprint author), Aarhus Univ, Dept Chem, Ctr Mat Crystallog, Langelandsgade 140, DK-8000 Aarhus C, Denmark.
EM jacobo@chem.au.dk; bo@chem.au.dk
RI Wang, Xiaoping/E-8050-2012; hoffmann, christina/D-2292-2016; Jorgensen,
Mads Ry Vogel/C-6109-2017;
OI Wang, Xiaoping/0000-0001-7143-8112; hoffmann,
christina/0000-0002-7222-5845; Jorgensen, Mads Ry
Vogel/0000-0001-5507-9615; Overgaard, Jacob/0000-0001-6492-7962
FU Danish National Research Foundation (Center for Materials
Crystallography) [DNRF93]; Scientific User Facilities Division, Office
of Basic Energy Sciences, US Department of Energy
FX This research was supported by the Danish National Research Foundation
(Center for Materials Crystallography, DNRF93). Research conducted at
ORNL's Spallation Neutron Source was sponsored by the Scientific User
Facilities Division, Office of Basic Energy Sciences, US Department of
Energy. We would like to thank the referees for their useful comments.
NR 37
TC 6
Z9 6
U1 2
U2 27
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0108-7673
EI 1600-5724
J9 ACTA CRYSTALLOGR A
JI Acta Crystallogr. Sect. A
PD NOV
PY 2014
VL 70
BP 679
EP 681
DI 10.1107/S2053273314015599
PN 6
PG 3
WC Chemistry, Multidisciplinary; Crystallography
SC Chemistry; Crystallography
GA AT0AM
UT WOS:000344599300017
ER
PT J
AU Mizianty, MJ
Fan, X
Yan, J
Chalmers, E
Woloschuk, C
Joachimiak, A
Kurgan, L
AF Mizianty, Marcin J.
Fan, Xiao
Yan, Jing
Chalmers, Eric
Woloschuk, Christopher
Joachimiak, Andrzej
Kurgan, Lukasz
TI Covering complete proteomes with X-ray structures: a current snapshot
SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
LA English
DT Article
ID PROTEIN CRYSTALLIZATION PROPENSITY; STRUCTURE PREDICTION; SCREENING
EFFICIENCY; THERMOTOGA-MARITIMA; ISOELECTRIC POINT; ESCHERICHIA-COLI;
WEB SERVER; DATA-BANK; GENOMICS; SEQUENCE
AB Structural genomics programs have developed and applied structure-determination pipelines to a wide range of protein targets, facilitating the visualization of macromolecular interactions and the understanding of their molecular and biochemical functions. The fundamental question of whether three-dimensional structures of all proteins and all functional annotations can be determined using X-ray crystallography is investigated. A first-of-its-kind large-scale analysis of crystallization propensity for all proteins encoded in 1953 fully sequenced genomes was performed. It is shown that current X-ray crystallographic knowhow combined with homology modeling can provide structures for 25% of modeling families (protein clusters for which structural models can be obtained through homology modeling), with at least one structural model produced for each Gene Ontology functional annotation. The coverage varies between superkingdoms, with 19% for eukaryotes, 35% for bacteria and 49% for archaea, and with those of viruses following the coverage values of their hosts. It is shown that the crystallization propensities of proteomes from the taxonomic superkingdoms are distinct. The use of knowledge-based target selection is shown to substantially increase the ability to produce X-ray structures. It is demonstrated that the human proteome has one of the highest attainable coverage values among eukaryotes, and GPCR membrane proteins suitable for X-ray structure determination were determined.
C1 [Mizianty, Marcin J.; Fan, Xiao; Yan, Jing; Chalmers, Eric; Woloschuk, Christopher; Kurgan, Lukasz] Univ Alberta, Edmonton, AB T6G 2V4, Canada.
[Joachimiak, Andrzej] Argonne Natl Lab, Midwest Ctr Struct Genom, Argonne, IL 60439 USA.
RP Joachimiak, A (reprint author), Argonne Natl Lab, Midwest Ctr Struct Genom, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM andrzejj@anl.gov; lkurgan@ece.ualberta.ca
RI Kurgan, Lukasz/B-5721-2009
OI Kurgan, Lukasz/0000-0002-7749-0314
FU National Institutes of Health [GM094585]; US Department of Energy,
Office of Biological and Environmental Research [DE-AC02-06CH11357];
Natural Sciences and Engineering Research Council [298328]; University
of Alberta
FX The authors wish to thank Dr Gyorgy Babnigg at Argonne National
Laboratory for useful comments. This work was supported by National
Institutes of Health grant GM094585, the US Department of Energy, Office
of Biological and Environmental Research under contract
DE-AC02-06CH11357, Natural Sciences and Engineering Research Council
Discovery grant 298328 and a Dissertation Scholarship awarded by the
University of Alberta to MJM.
NR 72
TC 4
Z9 5
U1 1
U2 12
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1399-0047
J9 ACTA CRYSTALLOGR D
JI Acta Crystallogr. Sect. D-Biol. Crystallogr.
PD NOV
PY 2014
VL 70
BP 2781
EP 2793
DI 10.1107/S1399004714019427
PN 11
PG 13
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Biophysics; Crystallography
SC Biochemistry & Molecular Biology; Biophysics; Crystallography
GA AT2UM
UT WOS:000344792000001
PM 25372670
ER
PT J
AU St John, FJ
Dietrich, D
Crooks, C
Pozharski, E
Gonzalez, JM
Bales, E
Smith, K
Hurlbert, JC
AF St John, Franz J.
Dietrich, Diane
Crooks, Casey
Pozharski, Edwin
Gonzalez, Javier M.
Bales, Elizabeth
Smith, Kennon
Hurlbert, Jason C.
TI A novel member of glycoside hydrolase family 30 subfamily 8 with altered
substrate specificity
SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
LA English
DT Article
ID ERWINIA-CHRYSANTHEMI; GLUCURONOXYLAN XYLANOHYDROLASE; XYLANASE;
PROTEINS; SEQUENCE; SUGARS
AB Endoxylanases classified into glycoside hydrolase family 30 subfamily 8 (GH30-8) are known to hydrolyze the hemicellulosic polysaccharide glucuronoxylan (GX) but not arabinoxylan or neutral xylooligosaccharides. This is owing to the specificity of these enzymes for the alpha-1,2-linked glucuronate (GA) appendage of GX. Limit hydrolysis of this substrate produces a series of aldouronates each containing a single GA substituted on the xylose penultimate to the reducing terminus. In this work, the structural and biochemical characterization of xylanase 30A from Clostridium papyrosolvens (CpXyn30A) is presented. This xylanase possesses a high degree of amino-acid identity to the canonical GH30-8 enzymes, but lacks the hallmark beta 8-alpha 8 loop region which in part defines the function of this GH30 subfamily and its role in GA recognition. CpXyn30A is shown to have a similarly low activity on all xylan substrates, while hydrolysis of xylohexaose revealed a competing transglycosylation reaction. These findings are directly compared with the model GH30-8 enzyme from Bacillus subtilis, XynC. Despite its high sequence identity to the GH30-8 enzymes, CpXyn30A does not have any apparent specificity for the GA appendage. These findings confirm that the typically conserved beta 8-alpha 8 loop region of these enzymes influences xylan substrate specificity but not necessarily alpha-1,4-xylanase function.
C1 [St John, Franz J.; Dietrich, Diane; Crooks, Casey] US Forest Serv, Forest Prod Lab, USDA, Madison, WI 53705 USA.
[Pozharski, Edwin] Univ Maryland, Dept Biochem & Mol Biol, College Pk, MD 20742 USA.
[Gonzalez, Javier M.] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM USA.
[Bales, Elizabeth; Smith, Kennon; Hurlbert, Jason C.] Winthrop Univ, Dept Chem Phys & Geol, Rock Hill, SC 29733 USA.
RP St John, FJ (reprint author), US Forest Serv, Forest Prod Lab, USDA, 1 Gifford Pinchot Dr, Madison, WI 53705 USA.
EM fjstjohn@gmail.com
RI St John, Franz/J-8970-2016;
OI St John, Franz/0000-0003-3458-5628; Pozharski,
Edwin/0000-0001-7012-5376; Gonzalez, Javier M./0000-0002-3298-2235
FU USDA Forest Service, Forest Products Laboratory, Madison, Wisconsin,
USA; National Center for Research Resources [5 P20 RR016461]
FX This work was primarily supported through the Wood, Fiber and Composites
Research area of the USDA Forest Service, Forest Products Laboratory,
Madison, Wisconsin, USA. JCH is supported by a grant from the National
Center for Research Resources (5 P20 RR016461). JCH would like to
acknowledge Dr Chris Davies of the Medical University of South Carolina,
Charleston, South Carolina, USA for access to X-ray equipment and
assistance in data collection.
NR 35
TC 5
Z9 5
U1 1
U2 17
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1399-0047
J9 ACTA CRYSTALLOGR D
JI Acta Crystallogr. Sect. D-Biol. Crystallogr.
PD NOV
PY 2014
VL 70
BP 2950
EP 2958
DI 10.1107/S1399004714019531
PN 11
PG 9
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Biophysics; Crystallography
SC Biochemistry & Molecular Biology; Biophysics; Crystallography
GA AT2UM
UT WOS:000344792000016
PM 25372685
ER
PT J
AU McAndrew, R
Pruitt, RN
Kamita, SG
Pereira, JH
Majumdar, D
Hammock, BD
Adams, PD
Ronald, PC
AF McAndrew, Ryan
Pruitt, Rory N.
Kamita, Shizuo G.
Pereira, Jose Henrique
Majumdar, Dipali
Hammock, Bruce D.
Adams, Paul D.
Ronald, Pamela C.
TI Structure of the OsSERK2 leucine-rich repeat extracellular domain
SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
LA English
DT Article
ID CRYSTAL-STRUCTURE; STRUCTURE REFINEMENT; PROTEIN-STRUCTURE;
IMMUNE-RESPONSE; PLANT DEFENSE; RECEPTOR; KINASE; BAK1; COMPLEX;
PERCEPTION
AB Somatic embryogenesis receptor kinases (SERKs) are leucine-rich repeat (LRR)-containing integral membrane receptors that are involved in the regulation of development and immune responses in plants. It has recently been shown that rice SERK2 (OsSERK2) is essential for XA21-mediated resistance to the pathogen Xanthomonas oryzae pv. oryzae. OsSERK2 is also required for the BRI1-mediated, FLS2-mediated and EFR-mediated responses to brassinosteroids, flagellin and elongation factor Tu (EF-Tu), respectively. Here, crystal structures of the LRR domains of OsSERK2 and a D128N OsSERK2 mutant, expressed as hagfish variable lymphocyte receptor (VLR) fusions, are reported. These structures suggest that the aspartate mutation does not generate any significant conformational change in the protein, but instead leads to an altered interaction with partner receptors.
C1 [McAndrew, Ryan; Pereira, Jose Henrique; Adams, Paul D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Pruitt, Rory N.; Majumdar, Dipali; Ronald, Pamela C.] Univ Calif Davis, Plant Pathol Fac, Genome Ctr, Davis, CA 95616 USA.
[Kamita, Shizuo G.; Hammock, Bruce D.] Univ Calif Davis, Dept Entomol, Davis, CA 95616 USA.
[Adams, Paul D.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
RP Adams, PD (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM pdadams@lbl.gov
RI Adams, Paul/A-1977-2013
OI Adams, Paul/0000-0001-9333-8219
FU US Department of Energy, Office of Science, Office of Biological and
Environmental Research [DE-AC02-05CH11231]; NIH [GM55962]; NIEHS [R01
ES002710]; Department of Biotechnology, Government of India Overseas
Fellowship; National Institutes of Health, National Institute of General
Medical Sciences; Howard Hughes Medical Institute; Office of Science,
Office of Basic Energy Sciences of the US Department of Energy
[DE-AC02-05CH11231]
FX We thank the Wilson laboratory for providing the
TLR5-N14VLR-pAcGP67 vector which was used to construct the
OsSERK2 expression vector. This work was part of the DOE Joint BioEnergy
Institute (JBEI), which is funded by the US Department of Energy, Office
of Science, Office of Biological and Environmental Research through
contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory
and the US Department of Energy. This work was also funded by NIH grant
No. GM55962 to PCR and NIEHS grant R01 ES002710 to BDH. DM was supported
by the Department of Biotechnology, Government of India Overseas
Fellowship. The Berkeley Center for Structural Biology is supported in
part by the National Institutes of Health, National Institute of General
Medical Sciences and the Howard Hughes Medical Institute. The Advanced
Light Source is supported by the Director, Office of Science, Office of
Basic Energy Sciences of the US Department of Energy under Contract No.
DE-AC02-05CH11231.
NR 42
TC 1
Z9 2
U1 1
U2 13
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0907-4449
EI 1399-0047
J9 ACTA CRYSTALLOGR D
JI Acta Crystallogr. Sect. D-Biol. Crystallogr.
PD NOV
PY 2014
VL 70
BP 3080
EP 3086
DI 10.1107/S1399004714021178
PN 11
PG 7
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Biophysics; Crystallography
SC Biochemistry & Molecular Biology; Biophysics; Crystallography
GA AT2UM
UT WOS:000344792000027
PM 25372696
ER
PT J
AU Hengstler-Eger, RM
Hoffmann, PB
Kirk, MA
Petry, W
AF Hengstler-Eger, R. M.
Hoffmann, P. B.
Kirk, M. A.
Petry, W.
TI Studies of the Microstructural Origins of PWR Fuel Assembly Growth: The
Effect of Tensile Stress on Irradiation Defect Formation in Zircaloy-4
SO ATW-INTERNATIONAL JOURNAL FOR NUCLEAR POWER
LA English
DT Editorial Material
C1 [Hengstler-Eger, R. M.; Hoffmann, P. B.] AREVA GmbH, D-91052 Erlangen, Germany.
[Kirk, M. A.] Argonne Natl Lab, Lemont, IL USA.
[Petry, W.] Tech Univ Munich, Garehing, Germany.
[Petry, W.] Forsch Neutronenquelle Heinz Maier Leibnitz, Garehing, Germany.
RP Hengstler-Eger, RM (reprint author), AREVA GmbH, Paul Gossen Str 100, D-91052 Erlangen, Germany.
NR 12
TC 0
Z9 0
U1 0
U2 4
PU INFORUM VERLAGS-VERWALTUNGSGESELLSCHAFT MBH
PI BERLIN
PA ROBERT-KOCH-PLATZ 4, BERLIN, 10115, GERMANY
SN 1431-5254
J9 ATW-INT J NUCL POWER
JI ATW-Int. J. Nucl. Power
PD NOV
PY 2014
VL 59
IS 11
BP 636
EP 639
PG 4
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AT5KN
UT WOS:000344982200009
ER
PT J
AU Hoefnagels, R
Searcy, E
Cafferty, K
Cornelissen, T
Junginger, M
Jacobson, J
Faaij, A
AF Hoefnagels, Ric
Searcy, Erin
Cafferty, Kara
Cornelissen, Thijs
Junginger, Martin
Jacobson, Jacob
Faaij, Andre
TI Lignocellulosic feedstock supply systems with intermodal and overseas
transportation
SO BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
LA English
DT Article
DE bioenergy; biomass trade; GIS; logistics; pellets
ID COST-ANALYSIS; BIOMASS FEEDSTOCK; LOGISTICS; ENERGY; BIOFUELS; ETHANOL;
CHAINS; TORREFACTION; PERSPECTIVE; PERFORMANCE
AB With growing demand for internationally traded biomass, the logistic operations required to economically move biomass from the field or forest to end-users have become increasingly complex. To design cost effective and sustainable feedstock supply chains, it is important to understand the economics, energy and greenhouse gas (GHG) emissions, their interdependencies, and the related uncertainties of the logistic process operations of international supply chains. This paper presents an approach to assessing lignocellulosic feedstock supply systems at the operational level. For this purpose, the Biomass Logistic Model (BLM) has been linked with the Geographic Information Systems-based Biomass Intermodal Transportation Model (BIT-UU) and extended with inter-continental transport routes. Case studies of herbaceous and woody biomass, produced in the US Midwest and US Southeast, respectively, and shipped to Europe for conversion to Fischer-Tropsch (FT) diesel are included to demonstrate how intermodal transportation and, in particular, overseas shipping integrates with the bioenergy supply chains. For the cases demonstrated, biomass can be supplied at 99 (sic) Mg-1 to 117 (sic) Mg-1 (dry) and converted to FT diesel at 19 (sic) GJ(-1) to 24 (sic) GJ(-1) depending on the feedstock type and location, intermediate (chips or pellets) and size of the FT diesel production plant. With the flexibility to change the design of supply chains as well as input variables, many alternative supply chain cases can be assessed. (C) 2014 Society of Chemical Industry and John Wiley & Sons, Ltd
C1 [Hoefnagels, Ric; Cornelissen, Thijs; Junginger, Martin] Univ Utrecht, NL-3584 CD Utrecht, Netherlands.
[Searcy, Erin; Cafferty, Kara; Jacobson, Jacob] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Faaij, Andre] Univ Groningen, NL-9700 AB Groningen, Netherlands.
RP Hoefnagels, R (reprint author), Univ Utrecht, Copernicus Inst Sustainable Dev, NL-3584 CD Utrecht, Netherlands.
EM e.t.a.hoefnagels@uu.nl
RI Faaij, Andre/E-8424-2014; Junginger, Martin/A-2687-2009
OI Junginger, Martin/0000-0002-5010-2051
NR 64
TC 0
Z9 0
U1 1
U2 17
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1932-104X
EI 1932-1031
J9 BIOFUEL BIOPROD BIOR
JI Biofuels Bioprod. Biorefining
PD NOV-DEC
PY 2014
VL 8
IS 6
BP 794
EP 818
DI 10.1002/bbb.1497
PG 25
WC Biotechnology & Applied Microbiology; Energy & Fuels
SC Biotechnology & Applied Microbiology; Energy & Fuels
GA AT1HU
UT WOS:000344684800015
ER
PT J
AU Tolbert, A
Akinosho, H
Khunsupat, R
Naskar, AK
Ragauskas, AJ
AF Tolbert, Allison
Akinosho, Hannah
Khunsupat, Ratayakorn
Naskar, Amit K.
Ragauskas, Arthur J.
TI Characterization and analysis of the molecular weight of lignin for
biorefining studies
SO BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
LA English
DT Review
DE lignin; average molecular weight; isolation; pre-treatment;
characterization
ID SIZE-EXCLUSION CHROMATOGRAPHY; MILLED WOOD LIGNIN; GEL-PERMEATION
CHROMATOGRAPHY; CELLULOLYTIC ENZYME LIGNIN; ETHANOL ORGANOSOLV PROCESS;
FLIGHT MASS-SPECTROMETRY; DILUTE-ACID PRETREATMENT; LASER-LIGHT
SCATTERING; STRUCTURAL-CHARACTERIZATION; KRAFT LIGNIN
AB The molecular weight of lignin is a fundamental property that influences the recalcitrance of biomass and the valorization of lignin. The determination of the molecular weight of lignin in native biomass is dependent on the bioresources used and the isolation and purification procedures employed. The three most commonly employed isolation methods are milled wood lignin (MWL), cellulolytic enzyme lignin (CEL), and enzymatic mild acidolysis lignin (EMAL). Common characterization techniques for determining the molecular weight of lignin will be addressed, with an emphasis on gel permeation chromatography (GPC). This review also examines the mechanisms behind several biological, physical, and chemical pre-treatments and their impact on the molecular weight of lignin. The number average molecular weight (M-n), weight average molecular weight (M-w) and polydispersity index (D) all vary in magnitude depending on the biomass source, pre-treatment conditions, and isolation method. Additionally, there is a growing body of literature that supports changes in the molecular weight of lignin in response to genetic modifications in the lignin biosynthetic pathways. This review summarizes different procedures for obtaining the molecular weight of lignin that have been used in recent years and highlight future opportunities for applications of lignin. (C) 2014 Society of Chemical Industry and John Wiley & Sons, Ltd
C1 [Tolbert, Allison; Akinosho, Hannah; Khunsupat, Ratayakorn] Georgia Inst Technol, Atlanta, GA 30332 USA.
[Naskar, Amit K.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Ragauskas, Arthur J.] Georgia Inst Technol, Sch Chem & Biochem, Inst Paper Sci & Technol, BioEnergy Sci Ctr, Atlanta, GA 30332 USA.
RP Ragauskas, AJ (reprint author), Georgia Inst Technol, Sch Chem & Biochem, Inst Paper Sci & Technol, Atlanta, GA 30332 USA.
EM arthur.ragauskas@chemistry.gatech.edu
OI Ragauskas, Arthur/0000-0002-3536-554X
FU Georgia Tech [4000116095, DE-AC05-00OR22725]; US Department of Energy;
Laboratory Directed Research and Development Program of Oak Ridge
National Laboratory; Paper Science & Engineering (PSE) fellowship
program at Institute of Paper Science & Technology (IPST) at Georgia
Institute of Technology
FX This manuscript has been authored, in part, by Georgia Tech under
Subcontract No. 4000116095 and Contract No. DE-AC05-00OR22725 with the
US Department of Energy. A.K.N. and R.K. acknowledges research
sponsorship by the Laboratory Directed Research and Development Program
of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the
US Department of Energy. The United States Government retains and the
publisher, by accepting the article for publication, acknowledges that
the United States Government retains a non-exclusive, paid-up,
irrevocable, world-wide license to publish or reproduce the published
form of the manuscript or allow others to do so, for United States
Government purposes. A.T. and H.K. are grateful for the financial
support from the Paper Science & Engineering (PSE) fellowship program at
Institute of Paper Science & Technology (IPST) at Georgia Institute of
Technology.
NR 171
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U1 15
U2 110
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1932-104X
EI 1932-1031
J9 BIOFUEL BIOPROD BIOR
JI Biofuels Bioprod. Biorefining
PD NOV-DEC
PY 2014
VL 8
IS 6
BP 836
EP 856
DI 10.1002/bbb.1500
PG 21
WC Biotechnology & Applied Microbiology; Energy & Fuels
SC Biotechnology & Applied Microbiology; Energy & Fuels
GA AT1HU
UT WOS:000344684800017
ER
PT J
AU Wang, D
Phan, N
Isely, C
Bruene, L
Bratlie, KM
AF Wang, Daniel
Ngoc Phan
Isely, Christopher
Bruene, Lucas
Bratlie, Kaitlin M.
TI Effect of Surface Modification and Macrophage Phenotype on Particle
Internalization
SO BIOMACROMOLECULES
LA English
DT Article
ID SELF-ASSEMBLED MONOLAYERS; IN-VITRO; COMPLEMENT ACTIVATION; PROTEIN
ADSORPTION; FUNCTIONAL-GROUPS; PHAGOCYTOSIS; NANOPARTICLES;
MICROSPHERES; CHEMISTRY; SIZE
AB Material properties play a key role in the cellular internalization of polymeric particles. In the present study, we have investigated the effects of material characteristics such as water contact angle, zeta potential, melting temperature, and alternative activation of complement on particle internalization for pro-inflammatory, pro-angiogenic, and naive macrophages by using biopolymers (similar to 600 nm), functionalized with 13 different molecules. Understanding how material parameters influence particle internalization for different macrophage phenotypes is important for targeted delivery to specific cell populations. Here, we demonstrate that material parameters affect the alternative pathway of complement activation as well as particle internalization for different macrophage phenotypes. Here, we show that the quantitative structureactivity relationship method (QSAR) previously used to predict physiochemical properties of materials can be applied to targeting different macrophage phenotypes. These findings demonstrated that targeted drug delivery to macrophages could be achieved by exploiting material parameters.
C1 [Wang, Daniel; Bratlie, Kaitlin M.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
[Ngoc Phan; Isely, Christopher; Bruene, Lucas; Bratlie, Kaitlin M.] Iowa State Univ, Dept Chem & Biol Engn, Ames, IA 50011 USA.
[Bratlie, Kaitlin M.] Ames Natl Lab, Ames, IA 50011 USA.
RP Bratlie, KM (reprint author), Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
EM kbratlie@iastate.edu
FU National Science Foundation [CBET 1227867]; Roy J. Carver Charitable
Trust Grant [13-4265]; NSF ARI-R2 [CMMI-0963224]
FX This work was supported by the National Science Foundation under Grant
No. CBET 1227867 and the Roy J. Carver Charitable Trust Grant No.
13-4265. The authors also acknowledge support from NSF ARI-R2
(CMMI-0963224) for funding the renovation of the research laboratories
used for these studies.
NR 44
TC 7
Z9 7
U1 2
U2 19
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1525-7797
EI 1526-4602
J9 BIOMACROMOLECULES
JI Biomacromolecules
PD NOV
PY 2014
VL 15
IS 11
BP 4102
EP 4110
DI 10.1021/bm5011382
PG 9
WC Biochemistry & Molecular Biology; Chemistry, Organic; Polymer Science
SC Biochemistry & Molecular Biology; Chemistry; Polymer Science
GA AT1WI
UT WOS:000344721400024
PM 25268218
ER
PT J
AU Petridis, L
O'Neill, HM
Johnsen, M
Fan, BX
Schulz, R
Mamontov, E
Maranas, J
Langan, P
Smith, JC
AF Petridis, Loukas
O'Neill, Hugh M.
Johnsen, Mariah
Fan, Bingxin
Schulz, Roland
Mamontov, Eugene
Maranas, Janna
Langan, Paul
Smith, Jeremy C.
TI Hydration Control of the Mechanical and Dynamical Properties of
Cellulose
SO BIOMACROMOLECULES
LA English
DT Article
ID PARTICLE MESH EWALD; BACTERIAL CELLULOSE; MOLECULAR SIMULATION;
CELL-WALLS; WATER; TRANSITIONS; PROTEIN; TEMPERATURE; MODULUS; BIOMASS
AB The mechanical and dynamical properties of cellulose, the most abundant biomolecule on earth, are essential for its function in plant cell walls and advanced biomaterials. Cellulose is almost always found in a hydrated state, and it is therefore important to understand how hydration influences its dynamics and mechanics. Here, the nanosecond-time scale dynamics of cellulose is characterized using dynamic neutron scattering experiments and molecular dynamics (MD) simulation. The experiments reveal that hydrated samples exhibit a higher average mean-square displacement above similar to 240 K. The MD simulation reveals that the fluctuations of the surface hydroxymethyl atoms determine the experimental temperature and hydration dependence. The increase in the conformational disorder of the surface hydroxymethyl groups with temperature follows the cellulose persistence length, suggesting a coupling between structural and mechanical properties of the biopolymer. In the MD simulation, 20% hydrated cellulose is more rigid than the dry form, due to more closely packed cellulose chains and water molecules bridging cellulose monomers with hydrogen bonds. This finding may have implications for understanding the origin of strength and rigidity of secondary plant cell walls. The detailed characterization obtained here describes how hydration-dependent increased fluctuations and hydroxymethyl disorder at the cellulose surface lead to enhancement of the rigidity of this important biomolecule.
C1 [Petridis, Loukas; Johnsen, Mariah; Schulz, Roland; Smith, Jeremy C.] Oak Ridge Natl Lab, UT ORNL Ctr Mol Biophys, Oak Ridge, TN 37831 USA.
[O'Neill, Hugh M.; Langan, Paul] Oak Ridge Natl Lab, Biol & Soft Matter Div, Oak Ridge, TN 37831 USA.
[O'Neill, Hugh M.; Langan, Paul] Oak Ridge Natl Lab, Ctr Struct Mol Biol, Oak Ridge, TN 37831 USA.
[Mamontov, Eugene] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA.
[Johnsen, Mariah] Ripon Coll, Ripon, WI 54971 USA.
[Fan, Bingxin; Maranas, Janna] Penn State Univ, Dept Chem Engn, University Pk, PA 16802 USA.
[Schulz, Roland; Smith, Jeremy C.] Univ Tennessee, Dept Biochem & Cellular & Mol Biol, Knoxville, TN 37996 USA.
[Langan, Paul] Univ Toledo, Dept Chem, Toledo, OH 43606 USA.
RP Petridis, L (reprint author), Oak Ridge Natl Lab, UT ORNL Ctr Mol Biophys, Oak Ridge, TN 37831 USA.
EM petridisl@ornl.gov
RI Schulz, Roland/A-1868-2010; Langan, Paul/N-5237-2015; Mamontov,
Eugene/Q-1003-2015; smith, jeremy/B-7287-2012; Petridis,
Loukas/B-3457-2009
OI Schulz, Roland/0000-0003-1603-2413; Langan, Paul/0000-0002-0247-3122;
O'Neill, Hugh/0000-0003-2966-5527; Mamontov, Eugene/0000-0002-5684-2675;
smith, jeremy/0000-0002-2978-3227; Petridis, Loukas/0000-0001-8569-060X
FU U.S. Department of Energy (DOE), Office of Science Office of Biological
and Environmental Research, Genomic Science Program [FWP ERKP752]; U.S.
Department of Energy (DOE) Office of Basic Energy Sciences, through
support for the Center for LignoCellulose Structure and Formation, an
Energy Frontier Research Center [DE-SC0001090]; U.S. Department of
Energy (DOE) Office of Basic Energy Sciences through support for
research at Oak Ridge National Laboratory's Spallation Neutron Source by
the Scientific User Facilities Division; Office of Science of DOE
[DE-AC02-05CH11231]
FX This research is supported by the U.S. Department of Energy (DOE),
Office of Science (i) Office of Biological and Environmental Research,
Genomic Science Program, under Award FWP ERKP752 and through support for
the Center for Structural Molecular Biology; and (ii) Office of Basic
Energy Sciences, through support for the Center for LignoCellulose
Structure and Formation, an Energy Frontier Research Center, funded
under Award DE-SC0001090 and support for research at Oak Ridge National
Laboratory's Spallation Neutron Source by the Scientific User Facilities
Division. This research used resources of NERSC, supported by the Office
of Science of DOE under Contract No. DE-AC02-05CH11231.
NR 47
TC 10
Z9 10
U1 4
U2 61
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1525-7797
EI 1526-4602
J9 BIOMACROMOLECULES
JI Biomacromolecules
PD NOV
PY 2014
VL 15
IS 11
BP 4152
EP 4159
DI 10.1021/bm5011849
PG 8
WC Biochemistry & Molecular Biology; Chemistry, Organic; Polymer Science
SC Biochemistry & Molecular Biology; Chemistry; Polymer Science
GA AT1WI
UT WOS:000344721400029
PM 25325376
ER
PT J
AU Harvey, JR
AF Harvey, John R.
TI Reforming the US nuclear weapons enterprise
SO BULLETIN OF THE ATOMIC SCIENTISTS
LA English
DT Article
DE Energy Department; Lawrence Livermore; life-extension programs; Los
Alamos; national laboratories; NNSA; nuclear weapons complex; Pantex;
Sandia; Savannah River; Y-12
AB Management and governance problems within the nuclear weapons enterprise are complex and cross jurisdictional boundaries. These problems have been repeatedly studied and are the target of yet another study, coming to completion as this article was being written. The studies agree on many of the steps that must be taken if the US nuclear weapons complex is to be reformed. What the government needs now is leadership determined to actually implement the necessary changes within the NNSA, its labs and plants, and the Energy Department for reform to succeed. Successful implementation requires the creation of champions who are empowered to effect real change, and institutionalized means of monitoring progress on implementation. Once the recommendations of the latest study are issued, Congress should establish an independent group to monitor progress on implementation.
C1 [Harvey, John R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Harvey, John R.] Stanford Univ, Ctr Int Secur & Arms Control, Stanford, CA 94305 USA.
[Harvey, John R.] US Dept Def, Washington, DC USA.
RP Harvey, JR (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
NR 2
TC 0
Z9 0
U1 1
U2 5
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0096-3402
EI 1938-3282
J9 B ATOM SCI
JI Bull. Atom. Scient.
PD NOV-DEC
PY 2014
VL 70
IS 6
BP 29
EP 38
DI 10.1177/0096340214555080
PG 10
WC International Relations; Social Issues
SC International Relations; Social Issues
GA AT0FB
UT WOS:000344611500006
ER
PT J
AU Rosner, R
Lordan, R
AF Rosner, Robert
Lordan, Rebecca
TI Why America should move toward dry cask consolidated interim storage of
used nuclear fuel
SO BULLETIN OF THE ATOMIC SCIENTISTS
LA English
DT Article
DE canister; disposal; dry cask; interim storage; nuclear waste; permanent
storage; used fuel
AB Despite the recommendations of the 2012 Blue Ribbon Commission Report, the US government has made no substantial progress toward the permanent, or even temporary, consolidated storage of used(1) civilian nuclear fuel. To complicate matters, a November 2013 decision by the United States Court of Appeals (2013) in Washington, DC eliminated the very fee designed to finance used-fuel storagewhich had accumulated over $30 billion so farintroducing a further obstacle (Nuclear Energy Institute, 2014a). It was not supposed to be this way. The 1982 Nuclear Waste Policy Act bound the federal government by law to take custody of all civilian waste from power companies for final disposal, under the assumption that the waste would be permanently stored in a deep geological repository at Nevada's Yucca Mountain and overseen by the Energy Department. The Act obligated the US government to begin accepting waste by 1998, but the government was unable to fulfill this promise, forcing it to remunerate the utility companies for continuing to store the waste and assume liability. This situation cannot continue. As a solution, the commission argues that the US government should establish a widely distributed series of regional, government-run sites that would take in the used fuel from the cooling pools of several reactors, thereby consolidating the interim storage of used fuel and putting this nuclear waste into stronger, safer, more secure, more manageableand ultimately more affordabledry casks, as a first step toward ultimate disposal. Dry casks have withstood earthquakes and floods, and are designed to withstand the heat of fires and the impact of airplanes; the 100-ton structures are hard to steal or damage, and require no cooling systems or power supplies. These are some of the many reasons why making the transition to dry cask-based interim storage should be made as quickly as possible, regardless of one's opinion of civilian nuclear power.
C1 [Rosner, Robert] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
[Rosner, Robert] Univ Chicago, Dept Phys, Chicago, IL 60637 USA.
[Rosner, Robert; Lordan, Rebecca] Univ Chicago, Harris Sch Publ Policy, Chicago, IL 60637 USA.
[Rosner, Robert] Argonne Natl Lab, Argonne, IL 60439 USA.
[Rosner, Robert] Energy Policy Inst, Chicago, IL USA.
RP Rosner, R (reprint author), Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
NR 27
TC 0
Z9 0
U1 4
U2 18
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0096-3402
EI 1938-3282
J9 B ATOM SCI
JI Bull. Atom. Scient.
PD NOV-DEC
PY 2014
VL 70
IS 6
BP 48
EP 62
DI 10.1177/0096340214555107
PG 15
WC International Relations; Social Issues
SC International Relations; Social Issues
GA AT0FB
UT WOS:000344611500008
ER
PT J
AU Hagos, S
Leung, LR
Xue, YK
Boone, A
de Sales, F
Neupane, N
Huang, M
Yoon, JH
AF Hagos, Samson
Leung, L. Ruby
Xue, Yongkang
Boone, Aaron
de Sales, Fernando
Neupane, Naresh
Huang, Maoyi
Yoon, Jin-Ho
TI Assessment of uncertainties in the response of the African monsoon
precipitation to land use change simulated by a regional model
SO CLIMATE DYNAMICS
LA English
DT Article
DE African monsoon; Land use change; Land cover change; African Easterly
Jet; Land degradation; Crop land; Pasture land; Regional model
simulations; Land surface models
ID DATA ASSIMILATION SYSTEM; SAHEL RAINFALL; PART II; CLIMATE; DROUGHT;
PARAMETERIZATION; DESERTIFICATION; DEFORESTATION; CONVECTION; VEGETATION
AB Land use and land cover (LULC) over Africa have changed substantially over the last 60 years and this change has been proposed to affect monsoon circulation and precipitation. This study examines the uncertainties of model simulated response in the African monsoon system and Sahel precipitation due to LULC change using a set of regional model simulations with different combinations of land surface and cumulus parameterization schemes. Although the magnitude of the response covers a broad range of values, most of the simulations show a decline in Sahel precipitation due to the expansion of pasture and croplands at the expense of trees and shrubs and an increase in surface air temperature. The relationship between the model responses to LULC change and the climatologists of the control simulations is also examined. Simulations that are climatologically too dry or too wet compared to observations and reanalyses have weak response to land use change because they are in moisture or energy limited regimes respectively. The ones that lie in between have stronger response to the LULC changes, showing a more significant role in land-atmosphere interactions. Much of the change in precipitation is related to changes in circulation, particularly to the response of the intensity and latitudinal position of the African Easterly Jet, which varies with the changes in meridional surface temperature gradients. The study highlights the need for measurements of the surface fluxes across the meridional cross-section of the Sahel to evaluate models and thereby allowing human impacts such as land use change on the monsoon to be projected more realistically.
C1 [Hagos, Samson; Leung, L. Ruby; Huang, Maoyi; Yoon, Jin-Ho] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Xue, Yongkang; Boone, Aaron; de Sales, Fernando] Univ Calif Los Angeles, Los Angeles, CA USA.
[Neupane, Naresh] Univ Texas Austin, Austin, TX 78712 USA.
RP Hagos, S (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM samson.hagos@pnnl.gov
RI YOON, JIN-HO/A-1672-2009; Huang, Maoyi/I-8599-2012
OI YOON, JIN-HO/0000-0002-4939-8078; Huang, Maoyi/0000-0001-9154-9485
FU Office of Science of the U.S. Department of Energy; DOE
[DE-AC05-76RLO1830]
FX The authors thank Dr. Yun Qian for his comments and suggestions. This
research was supported by the Office of Science of the U.S. Department
of Energy as part of the Regional and Global Climate Modeling Program
and Earth System Modeling Program. Computing resources for the
simulations are provided by the National Energy Research Scientific
Computing Center (NERSC) and Oak Ridge Leadership Computing Facility
(OLCF). The Pacific Northwest National Laboratory is operated for DOE by
Battelle Memorial Institute under Contract DE-AC05-76RLO1830. The
UDel_AirT_Precip data are provided by the NOAA/OAR/ESRL PSD, Boulder,
Colorado, USA, from their Web site at http://www.esrl.noaa.gov/psd/.
NR 42
TC 9
Z9 9
U1 4
U2 26
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0930-7575
EI 1432-0894
J9 CLIM DYNAM
JI Clim. Dyn.
PD NOV
PY 2014
VL 43
IS 9-10
BP 2765
EP 2775
DI 10.1007/s00382-014-2092-x
PG 11
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA AS8DJ
UT WOS:000344480100024
ER
PT J
AU Hack, JJ
Papka, ME
AF Hack, James J.
Papka, Michael E.
TI New Frontiers in Leadership Computing
SO COMPUTING IN SCIENCE & ENGINEERING
LA English
DT Editorial Material
C1 [Hack, James J.] Oak Ridge Natl Lab, Natl Ctr Computat Sci, Oak Ridge Leadership Comp Facil, Oak Ridge, TN 37831 USA.
[Papka, Michael E.] Argonne Natl Lab, Argonne Leadership Comp Facil, Argonne, IL 60439 USA.
[Papka, Michael E.] No Illinois Univ, De Kalb, IL 60115 USA.
RP Hack, JJ (reprint author), Oak Ridge Natl Lab, Natl Ctr Computat Sci, Oak Ridge Leadership Comp Facil, Oak Ridge, TN 37831 USA.
EM jhack@ornl.gov; papka@anl.gov
NR 0
TC 0
Z9 0
U1 1
U2 1
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1521-9615
EI 1558-366X
J9 COMPUT SCI ENG
JI Comput. Sci. Eng.
PD NOV-DEC
PY 2014
VL 16
IS 6
BP 10
EP 12
PG 3
WC Computer Science, Interdisciplinary Applications
SC Computer Science
GA AT3OM
UT WOS:000344843900002
ER
PT J
AU Rasquin, M
Smith, C
Chitale, K
Seol, ES
Matthews, BA
Martin, JL
Sahni, O
Loy, RM
Shephard, MS
Jansen, KE
AF Rasquin, Michel
Smith, Cameron
Chitale, Kedar
Seol, E. Seegyoung
Matthews, Benjamin A.
Martin, Jeffrey L.
Sahni, Onkar
Loy, Raymond M.
Shephard, Mark S.
Jansen, Kenneth E.
TI Scalable Implicit Flow Solver for Realistic Wing Simulations with Flow
Control
SO COMPUTING IN SCIENCE & ENGINEERING
LA English
DT Article
AB An active flow control application on a realistic wing design could be leveraged by a scalable, fully implicit, unstructured, finite-element flow solver and high-performance computing resources. This article describes the active flow control application; summarizes the main features in the implementation of a massively parallel turbulent flow solver, PHASTA; and demonstrates the method's strong scalability at extreme scale.
C1 [Rasquin, Michel; Loy, Raymond M.] Argonne Natl Lab, Argonne Leadership Comp Facil, Argonne, IL 60439 USA.
[Smith, Cameron] Rensselaer Polytech Inst, Ctr Computat Innovat, Troy, NY 12181 USA.
[Smith, Cameron; Shephard, Mark S.] Rensselaer Polytech Inst, Sci Computat Res Ctr, Troy, NY 12181 USA.
[Chitale, Kedar; Seol, E. Seegyoung] Rensselaer Polytech Inst, Troy, NY 12181 USA.
[Matthews, Benjamin A.; Martin, Jeffrey L.] Univ Colorado Boulder, Boulder, CO USA.
[Sahni, Onkar] Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, Troy, NY 12181 USA.
[Jansen, Kenneth E.] Univ Colorado Boulder, Aerosp Engn Dept, Boulder, CO USA.
RP Rasquin, M (reprint author), Argonne Natl Lab, Argonne Leadership Comp Facil, Argonne, IL 60439 USA.
EM mrasquin@alcf.anl.gov; smithc11@rpi.edu; chitak2@rpi.edu; seols@rpi.edu;
benjamin.a.matthews@colorado.edu; jerey.l.martin@colorado.edu;
sahni@rpi.edu; rloy@alcf.anl.gov; shephard@rpi.edu;
kenneth.jansen@colorado.edu
OI Rasquin, Michel/0000-0002-3619-2177
FU Office of Advanced Scientific Computing Research, Office of Science, US
Department of Energy [DE-AC02-06CH11357]; US Department of Energy
[DE-SC00066117]; National Science Foundation [0749152]; NSF
[CNS-0821794]; University of Colorado Boulder
FX We thank the Leadership Computing Facility at Argonne National
Laboratory for use of its resources. This work was supported by the
Office of Advanced Scientific Computing Research, Office of Science, US
Department of Energy, under contract DE-AC02-06CH11357; US Department of
Energy under grant DE-SC00066117 (FASTMath SciDAC Institute), and in
part by the National Science Foundation under grant 0749152. This work
used the Janus supercomputer, which is supported by the NSF (award
CNS-0821794) and the University of Colorado Boulder. The Janus
supercomputer is a joint effort of the University of Colorado Boulder,
the University of Colorado Denver, and the National Center for
Atmospheric Research. The solution presented here made use of software
components provided by Altair Engineering (Acusim), Simmetrix, and
Kitware. We thank Daniel Ibanez from Rensselaer Polytechnic Institute
for his contribution to the meshing tools used in this work.
NR 12
TC 7
Z9 7
U1 0
U2 1
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1521-9615
EI 1558-366X
J9 COMPUT SCI ENG
JI Comput. Sci. Eng.
PD NOV-DEC
PY 2014
VL 16
IS 6
BP 13
EP 21
PG 9
WC Computer Science, Interdisciplinary Applications
SC Computer Science
GA AT3OM
UT WOS:000344843900003
ER
PT J
AU Trebotich, D
Adams, MF
Molins, S
Steefel, CI
Shen, CP
AF Trebotich, David
Adams, Mark F.
Molins, Sergi
Steefel, Carl I.
Shen, Chaopeng
TI High-Resolution Simulation of Pore-Scale Reactive Transport Processes
Associated with Carbon Sequestration
SO COMPUTING IN SCIENCE & ENGINEERING
LA English
DT Article
ID EMBEDDED BOUNDARY METHOD; NAVIER-STOKES EQUATIONS; FLOW
AB New investigative tools, combined with experiments and computational methods, are being developed to build a next-generation understanding of molecular-to-pore-scale processes in fluid-rock systems. A new numerical simulation modeling capability, known as Chombo-Crunch, resolves flow and transport processes in geometric features obtained from image data of realistic pore space at unprecedented scale and resolution.
C1 [Trebotich, David; Adams, Mark F.] Lawrence Berkeley Natl Lab, Computat Res Div, Appl Numer Algorithms Grp, Berkeley, CA 94720 USA.
[Molins, Sergi; Steefel, Carl I.] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA USA.
[Shen, Chaopeng] Penn State Univ, University Pk, PA 16802 USA.
RP Trebotich, D (reprint author), Lawrence Berkeley Natl Lab, Computat Res Div, Appl Numer Algorithms Grp, Berkeley, CA 94720 USA.
EM dptrebotich@lbl.gov; dptrebotich@lbl.gov; smolins@lbl.gov;
smolins@lbl.gov; cshen@engr.psu.edu
RI Molins, Sergi/A-9097-2012; Steefel, Carl/B-7758-2010;
OI Molins, Sergi/0000-0001-7675-3218; Shen, Chaopeng/0000-0002-0685-1901
FU Office of Advanced Scientific Computing Research; Center for Nanoscale
Control of Geologic CO2, an Energy Frontier Research Center -
Office of Basic Energy National Laboratory
FX This work was funded by the Office of Advanced Scientific Computing
Research, in part by the Center for Nanoscale Control of Geologic
CO2, an Energy Frontier Research Center funded by the Office
of Basic Energy National Laboratory. He was instrumental in interfacing
the Crunch Flow geochemistry module with the Chombo flow and transport
solver. Molins has a PhD in computational science from the University of
California, Berkeley, and in civil engineering from the University of
British Columbia. Contact him at smolins@lbl.gov.
NR 20
TC 10
Z9 10
U1 0
U2 19
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1521-9615
EI 1558-366X
J9 COMPUT SCI ENG
JI Comput. Sci. Eng.
PD NOV-DEC
PY 2014
VL 16
IS 6
BP 22
EP 31
PG 10
WC Computer Science, Interdisciplinary Applications
SC Computer Science
GA AT3OM
UT WOS:000344843900004
ER
PT J
AU Amundson, J
Macridin, A
Spentzouris, P
AF Amundson, James
Macridin, Alexandru
Spentzouris, Panagiotis
TI High-Performance Computing Modeling Advances Accelerator Science for
High-Energy Physics
SO COMPUTING IN SCIENCE & ENGINEERING
LA English
DT Article
AB Particle accelerators are essential for advancing our understanding of matter, energy, space, and time. Because they exhibit many physical effects on multiple scales, advanced computational tools are essential for accurately modeling them. The authors focus here on Synergia, an accelerator simulation package capable of handling the entire spectrum of beam dynamics simulations.
C1 [Amundson, James] Fermilab Natl Accelerator Lab, Sci Software Infrastruct Dept, Batavia, IL 60510 USA.
[Macridin, Alexandru] Fermilab Natl Accelerator Lab, Div Comp Sci, Batavia, IL USA.
[Spentzouris, Panagiotis] Fermilab Natl Accelerator Lab, Sci Comp Div, Batavia, IL USA.
RP Amundson, J (reprint author), Fermilab Natl Accelerator Lab, Sci Software Infrastruct Dept, Batavia, IL 60510 USA.
EM amundson@fnal.gov; macridin@fnal.gov; spentz@fnal.gov
FU US Department of Energy [De-AC02-07CH11359]; ComPASS project via the
Scientific Discovery through Advanced Computing program in the DoE
Office of High Energy Physics; Office of Science of the DoE
[DE-AC02-06CH11357]
FX This work was performed at Fermi lab, operated by Fermi Research
Alliance, LLC, under contract De-AC02-07CH11359 with the US Department
of Energy. It was also supported by the ComPASS project, funded via the
Scientific Discovery through Advanced Computing program in the DoE
Office of High Energy Physics. We also used resources from the Argonne
Leadership Computing Facility at Argonne National Laboratory, which is
supported by the Office of Science of the DoE under contract
DE-AC02-06CH11357.
NR 14
TC 0
Z9 0
U1 0
U2 2
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1521-9615
EI 1558-366X
J9 COMPUT SCI ENG
JI Comput. Sci. Eng.
PD NOV-DEC
PY 2014
VL 16
IS 6
BP 32
EP 41
PG 10
WC Computer Science, Interdisciplinary Applications
SC Computer Science
GA AT3OM
UT WOS:000344843900005
ER
PT J
AU Langer, SH
Bhatele, A
Still, CH
AF Langer, Steven H.
Bhatele, Abhinav
Still, Charles H.
TI pF3D Simulations of Laser-Plasma Interactions in National Ignition
Facility Experiments
SO COMPUTING IN SCIENCE & ENGINEERING
LA English
DT Article
AB The laser-plasma interaction code pF3D is used to simulate laser-plasma interactions in National Ignition Facility experiments. The optimizations performed on pF3D enable scaling to a million or more processes. Key scalability issue include message passing, disk I/O, and code steering.
C1 [Langer, Steven H.; Still, Charles H.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Bhatele, Abhinav] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA USA.
RP Langer, SH (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM langer1@llnl.gov; bhatele@llnl.gov; still1@llnl.gov
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344 (LLNL-JRNL-648736)]; Office of Science of the US
Department of Energy [DE-AC02-06CH11357]
FX This work was performed under the auspices of the US Department of
Energy by Lawrence Livermore National Laboratory under contract
DE-AC52-07NA27344 (LLNL-JRNL-648736). We thank John Moody of LLNL for
the Near Backscatter Imaging (NBI) data. This research used resources of
the Argonne Leadership Computing Facility at Argonne National
Laboratory, which is supported by the Office of Science of the US
Department of Energy under contract DE-AC02-06CH11357.
NR 8
TC 1
Z9 1
U1 1
U2 10
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1521-9615
EI 1558-366X
J9 COMPUT SCI ENG
JI Comput. Sci. Eng.
PD NOV-DEC
PY 2014
VL 16
IS 6
BP 42
EP 50
PG 9
WC Computer Science, Interdisciplinary Applications
SC Computer Science
GA AT3OM
UT WOS:000344843900006
ER
PT J
AU Yakovenko, AA
Wei, ZW
Wriedt, M
Li, JR
Halder, GJ
Zhou, HC
AF Yakovenko, Andrey A.
Wei, Zhangwen
Wriedt, Mario
Li, Jian-Rong
Halder, Gregory J.
Zhou, Hong-Cai
TI Study of Guest Molecules in Metal Organic Frameworks by Powder X-ray
Diffraction: Analysis of Difference Envelope Density
SO CRYSTAL GROWTH & DESIGN
LA English
DT Article
ID GAS-ADSORPTION SITES; NEUTRON-DIFFRACTION; CRYSTAL-STRUCTURES; METHANE
STORAGE; CARBON-DIOXIDE; REFINEMENT; ACTIVATION; CHEMISTRY; SORPTION;
CAPTURE
AB The structural characterization of metalorganic frameworks (MOFs) by powder X-ray diffraction can be challenging. Even more difficult are studies of guest solvent or gas molecules inside the MOF pores. Hence, recently we successfully designed several new approaches for structural investigations of porous MOFs. These methods use structure envelopes, which can be easily generated from the structure factors of a few (110) of the most intense low index reflections. However, the most interesting results have been found by using difference envelope density (DED) analysis. DED can be produced by taking the difference between observed and calculated structure envelope densities. The generation and analysis of DED maps are straightforward but allow studying guest molecules in the pores of MOFs by using routine powder X-ray diffraction data. Examples of DED used for studies of solvent molecule location, porosity activation, and gas loading are presented herein. We show that DED analysis is an important technique in the study of hostguest properties in MOFs by providing position, shape, and approximate occupancy of molecules in the MOF pores.
C1 [Yakovenko, Andrey A.; Wei, Zhangwen; Wriedt, Mario; Zhou, Hong-Cai] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA.
[Yakovenko, Andrey A.; Halder, Gregory J.] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA.
[Wriedt, Mario] Clarkson Univ, Dept Chem & Biomol Sci, Potsdam, NY 13699 USA.
[Li, Jian-Rong] Beijing Univ Technol, Dept Chem & Chem Engn, Beijing 100124, Peoples R China.
RP Yakovenko, AA (reprint author), Argonne Natl Lab, Adv Photon Source, Xray Sci Div, ANL 9700 South Cass Ave, Argonne, IL 60439 USA.
EM ayakovenko@aps.anl.gov; zhou@chem.tamu.edu
RI Zhou, Hong-Cai/A-3009-2011; Halder, Gregory/C-5357-2013; Wei,
Zhangwen/D-2536-2016; Wriedt, Mario/B-5645-2011; Li, Jian-Rong
(Jeff)/G-2781-2010
OI Zhou, Hong-Cai/0000-0002-9029-3788; Wei, Zhangwen/0000-0002-8378-2479;
FU U.S. Department of Energy [DE-AR0000249]; Office of Navel Research
[N000141310753]; Welch Foundation [A-1725]; U.S. Department of Energy,
Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357];
Clarkson University; Postdoc Programme of the German Academic Exchange
Service (DAAD)
FX This work was supported by the U.S. Department of Energy (DE-AR0000249),
the Office of Navel Research (N000141310753), and the Welch Foundation
(A-1725). Work done at 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.W. acknowledges support from Clarkson University
(start-up fund) and the Postdoc Programme of the German Academic
Exchange Service (DAAD). A detailed description is given in the
Supporting Information.
NR 64
TC 10
Z9 10
U1 6
U2 50
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1528-7483
EI 1528-7505
J9 CRYST GROWTH DES
JI Cryst. Growth Des.
PD NOV
PY 2014
VL 14
IS 11
BP 5397
EP 5407
DI 10.1021/cg500525g
PG 11
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA AS8RW
UT WOS:000344516800011
ER
PT J
AU Sand, KK
Pedersen, CS
Sjoberg, S
Nielsen, JW
Makovicky, E
Stipp, SLS
AF Sand, K. K.
Pedersen, C. S.
Sjoberg, S.
Nielsen, J. W.
Makovicky, E.
Stipp, S. L. S.
TI Biomineralization: Long-Term Effectiveness of Polysaccharides on the
Growth and Dissolution of Calcite
SO CRYSTAL GROWTH & DESIGN
LA English
DT Article
ID AQUEOUS-SOLUTION INTERFACE; HUXLEYI LOHMANN KAMPTNER; EMILIANIA-HUXLEYI;
ACIDIC POLYSACCHARIDE; SURFACE COMPLEXATION; BIOLOGICAL-CONTROL; CHARGE;
MODEL; CRYSTALLIZATION; COCCOLITHS
AB Our results demonstrate that in addition to being used for controlling morphology during calcite growth, polysaccharide (PS) that has been designed for biomineralization is also extremely robust, influencing calcite reactions even after millions of years. We investigated calcite (CaCO3) behavior in solutions with very small concentrations of PS that was produced similar to 70 Ma ago by coccolithophorids. We used atomic force microscopy (AFM) and the constant composition method to monitor calcite growth in the presence of this ancient PS. The ancient PS is still very active and has a high affinity for calcite step edges. Adsorption, even at extremely low concentrations (0.5 mu g/mL), results in decreased growth rate and dramatic morphology changes during growth and dissolution. The experimental results are complemented with surface complexation modeling for adsorption of components of polysaccharide from a modern coccolithophorid, Emiliania huxleyi. We generated surface complexation constants for the branch components: malonate: 14.25 +/- 0.17, succinate: 11.91 +/- 0.06, tricarballylate: 14.86 +/- 0.04, and citrate: 15.25 +/- 0.04. The implication is that complex PS could hold promise for smart material engineering and for preventing scaling.
C1 [Sand, K. K.; Pedersen, C. S.; Nielsen, J. W.; Stipp, S. L. S.] Univ Copenhagen, Dept Chem, Nanosci Ctr, DK-2100 Copenhagen, Denmark.
[Makovicky, E.] Univ Copenhagen, Dept Geog & Geol, DK-2100 Copenhagen, Denmark.
[Sjoberg, S.] Umea Univ, Dept Chem, Umea, Sweden.
[Sand, K. K.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
RP Sand, KK (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, 1 Cyclotron Rd,MS 67-5111, Berkeley, CA 94720 USA.
EM kks@nano.ku.dk
RI Sand, Karina/P-1008-2014
OI Sand, Karina/0000-0002-0720-7229
FU Nano-Chalk Venture - Danish National Advanced Technology Foundation
(HTF); Maersk Oil and Gas A/S; University of Copenhagen; Engineering and
Physical Sciences Research Council [EP/I001514/1]; Materials Interface
with Biology (MIB) consortium
FX We sincerely thank Keld West, Tue Hassenkam, Leonid Lakshtanov, and
members of the Nano-GeoScience group for help and discussion. We are
also grateful to Finn Engstrom, Karen Henriksen, and Maersk Oil and Gas
A/S for choosing and providing the chalk samples. The project was funded
by the Nano-Chalk Venture, supported by the Danish National Advanced
Technology Foundation (HTF), Maersk Oil and Gas A/S and the University
of Copenhagen and the Engineering and Physical Sciences Research Council
[Grant Number EP/I001514/1]. This programme grant funds the Materials
Interface with Biology (MIB) consortium.
NR 42
TC 7
Z9 7
U1 6
U2 46
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1528-7483
EI 1528-7505
J9 CRYST GROWTH DES
JI Cryst. Growth Des.
PD NOV
PY 2014
VL 14
IS 11
BP 5486
EP 5494
DI 10.1021/cg5006743
PG 9
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA AS8RW
UT WOS:000344516800020
ER
PT J
AU Singh, MR
Nere, N
Tung, HH
Mukherjee, S
Bordawekar, S
Ramkrishna, D
AF Singh, Meenesh R.
Nere, Nandkishor
Tung, Hsien-Hsin
Mukherjee, Samrat
Bordawekar, Shailendra
Ramkrishna, Doraiswami
TI Measurement of Polar Plots of Crystal Dissolution Rates Using Hot-Stage
Microscopy. Some Further Insights into Dissolution Morphologies
SO CRYSTAL GROWTH & DESIGN
LA English
DT Article
ID SLOWNESS SURFACES; KINEMATIC WAVES; CUBIC-CRYSTALS; GROWTH; EVOLUTION;
SPHERES; FORMS; SHAPE
AB Polar plots are the representations of anisotropic surface properties such as surface energies and growth rates of crystalline materials. The steady-state morphologies of growing crystals are usually obtained from Wulff constructions on the polar plots of growth rates, whereas the morphologies of dissolving crystals are known to have no steady states. Here we show that the dissolving crystal can attain steady-state morphologies under certain conditions. The Wulff construction on the polar plots of dissolution time (or slowness) can be used to identify such steady-state morphologies. It is shown that the dissolving crystal can attain faceted morphology composed of fast dissolving faces. The evolution of dissolving crystals toward faceted morphology involves disappearance of slow-dissolving faces, which also causes vanishing of curvatures from the crystal surface. This article presents a method to experimentally determine polar plots from the dynamic images of crystals obtained from hot-stage microscopy. The method relies on the solution of the characteristics for crystal dissolution. The methodology is demonstrated to obtain polar plots of succinic acid at different subsaturations.
C1 [Singh, Meenesh R.; Tung, Hsien-Hsin; Ramkrishna, Doraiswami] Purdue Univ, Sch Chem Engn, W Lafayette, IN 47907 USA.
[Nere, Nandkishor; Tung, Hsien-Hsin; Mukherjee, Samrat; Bordawekar, Shailendra] AbbVie Inc, GPRD Proc R&D, Proc Engn & Sci, N Chicago, IL USA.
[Singh, Meenesh R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Joint Ctr Artificial Photosynth, Berkeley, CA 94720 USA.
RP Ramkrishna, D (reprint author), Purdue Univ, Sch Chem Engn, W Lafayette, IN 47907 USA.
EM ramkrish@purdue.edu
OI Singh, Meenesh/0000-0002-3638-8866
FU GPRD-Process Engineering department of AbbVie Inc., North Chicago;
McDonnell Douglas Fellowship
FX The authors (M.R.S. and D.R.) gratefully acknowledge the funding support
from GPRD-Process Engineering department of AbbVie Inc., North Chicago.
M.R.S also acknowledges McDonnell Douglas Fellowship administered
through Purdue College of Engineering to support this research.
NR 30
TC 1
Z9 1
U1 1
U2 10
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1528-7483
EI 1528-7505
J9 CRYST GROWTH DES
JI Cryst. Growth Des.
PD NOV
PY 2014
VL 14
IS 11
BP 5647
EP 5661
DI 10.1021/cg500939t
PG 15
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA AS8RW
UT WOS:000344516800040
ER
PT J
AU Li, H
Malliakas, CD
Liu, ZF
Peters, JA
Sebastian, M
Zhao, LD
Chung, DY
Wessels, BW
Kanatzidis, MG
AF Li, Hao
Malliakas, Christos D.
Liu, Zhifu
Peters, John A.
Sebastian, Maria
Zhao, Lidong
Chung, Duck Young
Wessels, Bruce W.
Kanatzidis, Mercouri G.
TI Investigation of Semi-Insulating Cs2Hg6S7 and Cs2Hg6-xCdxS7 Alloy for
Hard Radiation Detection
SO CRYSTAL GROWTH & DESIGN
LA English
DT Article
ID GAMMA-RAY DETECTION; DIMENSIONAL REDUCTION; CRYSTAL-GROWTH; X-RAY; CDTE;
SE; TE; SEMICONDUCTOR; CHALCOGENIDES; CD0.9ZN0.1TE
AB A new method is described to synthesize the semiconductor Cs2Hg6S7 and its alloy with Cd. Using the as-synthesized material, large single crystals have been grown by the Bridgman method under an improved set of crystal growth parameters. In addition, Cd alloying in the form of Cs(2)Hg(6)xCd(x)S(7) (x = 0.25, 0.5, 0.75, etc.) as well as doping with In, Cl was investigated and the influence on the electronic properties was studied. Cd alloying increases the band gap of Cs2Hg6S7 from 1.63 to 1.84 eV. Doping with In and Cl however creates electron carriers and changes p-type samples of Cs2Hg6S7 into n type. A 30-fold increase in the resistivity of the single crystals from 2 X 10(6) to 0.65 X 10(8) Omega cm has been achieved. The carrier mobility-lifetime product of the Cs(2)Hg6S7 crystals has been increased to 1.7 X 10(-3) cm2/V for electrons (mu t)(e) and 2.4 X 10(-3) cm2/V for holes (mu t)(h) (HgCl2 doped). The measured (mu t)e value is comparable to the commercial CdZnTe crystal while the (mu t)h is 10 times higher. Detection of Ag X-ray radiation is demonstrated using the as-grown Cs2Hg6S7 crystals.
C1 [Li, Hao; Malliakas, Christos D.; Sebastian, Maria; Zhao, Lidong; Kanatzidis, Mercouri G.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Chung, Duck Young; Kanatzidis, Mercouri G.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Liu, Zhifu; Peters, John A.; Sebastian, Maria; Wessels, Bruce W.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
[Wessels, Bruce W.] Northwestern Univ, Dept Elect Engn & Comp Sci, Evanston, IL 60208 USA.
RP Kanatzidis, MG (reprint author), Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA.
EM m-kanatzidis@northwestern.edu
RI Li, Hao/C-8685-2015; Wessels, Bruce/B-7541-2009
FU Defense Threat Reduction Agency [HDTRA1 09-1-0044]; office of
Nonproliferation and Verification Research and Development under the
National Nuclear Security Administration of the U.S. Department of
Energy [DE-AC02-06CH11357]
FX This research was supported by the Defense Threat Reduction Agency
through Grant HDTRA1 09-1-0044. At Argonne National Laboratory (by
D.Y.C.), work was supported by the office of Nonproliferation and
Verification Research and Development under the National Nuclear
Security Administration of the U.S. Department of Energy under Contract
DE-AC02-06CH11357.
NR 42
TC 5
Z9 5
U1 1
U2 11
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1528-7483
EI 1528-7505
J9 CRYST GROWTH DES
JI Cryst. Growth Des.
PD NOV
PY 2014
VL 14
IS 11
BP 5949
EP 5956
DI 10.1021/cg501151r
PG 8
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA AS8RW
UT WOS:000344516800073
ER
PT J
AU Bracco, JN
Stack, AG
Higgins, SR
AF Bracco, Jacquelyn N.
Stack, Andrew G.
Higgins, Steven R.
TI Magnesite Step Growth Rates as a Function of the Aqueous
Magnesium:Carbonate Ratio
SO CRYSTAL GROWTH & DESIGN
LA English
DT Article
ID ATOMIC-FORCE MICROSCOPY; CALCITE GROWTH; DISSOLUTION KINETICS; SOLUTION
STOICHIOMETRY; DEGREES-C; CRYSTAL; SURFACE; WATER; MECHANISM; DYNAMICS
AB Step velocities of monolayer-height steps on the (101 4) magnesite surface have been measured as functions of the aqueous magnesium:carbonate ratio and saturation index (SI) using a hydrothermal atomic force microscope. At SI = 1.9 and 80-90 degrees C, step velocities were found to be invariant with changes in the magnesium:carbonate ratio, an observation in contrast with standard models for growth and dissolution of ionically bonded, multicomponent crystals. However, at high saturation indices (SI = 2.15), step velocities displayed a ratio dependence, maximized at magnesium:carbonate ratios slightly greater than 1:1. Traditional affinity-based models could not describe growth rates at the higher saturation index. Step velocities also could not be modeled solely through nucleation of kink sites, in contrast to other minerals whose bonding between constituent ions is also dominantly ionic in nature, such as calcite and barite. Instead, they could be described only by a model that incorporates both kink nucleation and propagation. On the basis of observed step morphological changes at these higher saturation indices, the step velocity maximum at SI = 2.15 is likely due to the rate of attachment to propagating kink sites overcoming the rate of detachment from kink sites as the latter becomes less significant under far from equilibrium conditions.
C1 [Bracco, Jacquelyn N.; Higgins, Steven R.] Wright State Univ, Dept Chem, Dayton, OH 45435 USA.
[Stack, Andrew G.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Higgins, SR (reprint author), Wright State Univ, Dept Chem, 3640 Colonel Glenn Highway, Dayton, OH 45435 USA.
EM steven.higgins@wright.edu
OI Bracco, Jacquelyn/0000-0002-7096-8856
FU U.S. Department of Energy, Office of Science, Basic Energy Sciences,
Chemical Sciences, Geosciences, and Biosciences Division
FX This work was supported by the U.S. Department of Energy, Office of
Science, Basic Energy Sciences, Chemical Sciences, Geosciences, and
Biosciences Division. We are grateful to Kevin G. Knauss and Garrett
VanNess for their technical assistance.
NR 48
TC 8
Z9 8
U1 1
U2 26
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1528-7483
EI 1528-7505
J9 CRYST GROWTH DES
JI Cryst. Growth Des.
PD NOV
PY 2014
VL 14
IS 11
BP 6033
EP 6040
DI 10.1021/cg501203g
PG 8
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA AS8RW
UT WOS:000344516800083
ER
PT J
AU Manner, VW
Tappan, BC
Scott, BL
Preston, DN
Brown, GW
AF Manner, Virginia W.
Tappan, Bryce C.
Scott, Brian L.
Preston, Daniel N.
Brown, Geoffrey W.
TI Crystal Structure, Packing Analysis, and Structural-Sensitivity
Correlations of Erythritol Tetranitrate
SO CRYSTAL GROWTH & DESIGN
LA English
DT Article
ID PENTAERYTHRITOL TETRANITRATE; ENERGETIC MATERIALS; DECOMPOSITION;
EXPLOSIVES; ESTERS
AB The explosive erythritol tetranitrate (ETN) has been known since 1849 and has applications as a vasodilator; however, little is known about its structure and bonding. Here we present the X-ray crystal structure of erythritol tetranitrate (ETN), along with characterization by nuclear magnetic resonance (NMR), infrared spectroscopy (IR), elemental analysis, and X-ray diffraction (XRD). Crystal packing and morphology are discussed in relation to explosive handling sensitivity (impact, spark, and friction testing). We compare the structure and property relationship to a closely related common nitrate ester, pentaerythritol tetranitrate (PETN).
C1 [Manner, Virginia W.; Tappan, Bryce C.; Scott, Brian L.; Preston, Daniel N.; Brown, Geoffrey W.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Manner, VW (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM vwmanner@lanl.gov; btappan@lanl.gov
RI Scott, Brian/D-8995-2017
OI Scott, Brian/0000-0003-0468-5396
FU U.S. Department of Energy [DE-AC52-06NA25396]; Campaign 2 (LANL)
FX Los Alamos National Laboratory is operated by LANS, LLC, for the U.S.
Department of Energy under contract DE-AC52-06NA25396. The authors
acknowledge Campaign 2 (LANL) for support of this work, Stephanie
Hagelberg for elemental analysis, Mary Sandstrom for DSC measurements,
Kelly L. Parker for the Table of Contents graphic design, G. Kenneth
Windier for help with 14N NMR measurements, and Kevin Fleming
(Trinity Scientific) for helpful discussions.
NR 25
TC 11
Z9 11
U1 1
U2 20
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1528-7483
EI 1528-7505
J9 CRYST GROWTH DES
JI Cryst. Growth Des.
PD NOV
PY 2014
VL 14
IS 11
BP 6154
EP 6160
DI 10.1021/cg501362b
PG 7
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA AS8RW
UT WOS:000344516800097
ER
PT J
AU Miara, A
Tarr, C
Spellman, R
Vorosmarty, CJ
Macknick, JE
AF Miara, Ariel
Tarr, Craig
Spellman, Rachel
Voeroesmarty, Charles J.
Macknick, Jordan E.
TI The power of efficiency: Optimizing environmental and social benefits
through demand-side-management
SO ENERGY
LA English
DT Article
DE Demand-side-management; Energy planning; Electricity supply and demand;
Environmental policy; Carbon dioxide mitigation; External costs
ID AIR-POLLUTION; UNITED-STATES; ENERGY; TECHNOLOGIES; DAMAGES; IMPACTS;
SYSTEM; COAL
AB Substantial social and environmental benefits can be achieved through regional DSM (demand-side management) strategies. Here, three DSM scenarios that vary in capital investment costs of technology retrofits were tested for the contemporary Northeastern US. These resulted in an 8.3-16.5% decrease in summertime regional electricity consumption. The lower power consumption achieved through DSM was analyzed under an additional five SPR (strategic power reduction) scenarios to explore how the reduced electricity demand could be optimized through different modalities of thermoelectric power production that lower human health risks, thermal water pollution, carbon emissions or system costs (operation and maintenance) of power plants. SPR scenarios show potential to lower health risks to nearly two million people with corresponding avoided external costs of $11 billion per year, lower carbon emissions (31%, maximum) and thermal water pollution (37%, maximum). By internalizing external costs, some unfavorable investments (NPV (net present value) < 0) turned into favorable ones (NPV > 0). Results show that integrating tradeoffs of DSM beyond the building scale unveil considerable social and environmental benefits that are ignored in typical financial valuations. This, in turn, can provide more holistic assessments and identify actionable policy alternatives of value to energy and environmental planners that aim to achieve sustainable development. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Miara, Ariel; Voeroesmarty, Charles J.] CUNY, Environm Crossroads Initiat, New York, NY 10031 USA.
[Tarr, Craig; Spellman, Rachel] CUNY, New York, NY 10031 USA.
[Voeroesmarty, Charles J.] CUNY, Dept Civil Engn, New York, NY 10031 USA.
[Macknick, Jordan E.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Miara, A (reprint author), CUNY, Environm Crossroads Initiat, New York, NY 10031 USA.
EM amiara00@citymail.cuny.edu
FU National Science Foundation [1049181]; Department of Education - Earth
Science and Environmental Sustainability (ESES) Graduate Initiative
[P031M105]
FX This work is supported by the National Science Foundation Grant #1049181
and The Department of Education - Earth Science and Environmental
Sustainability (ESES) Graduate Initiative Grant #P031M105. We thank and
are grateful to: Prof. Anthony Dvarskas (CCNY), Prof. Sean Ahearn
(CUNY), Rebecca Stubbs (NREL), and anonymous reviewers for their
suggestions.
NR 73
TC 8
Z9 8
U1 5
U2 30
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-5442
EI 1873-6785
J9 ENERGY
JI Energy
PD NOV 1
PY 2014
VL 76
BP 502
EP 512
DI 10.1016/j.energy.2014.08.047
PG 11
WC Thermodynamics; Energy & Fuels
SC Thermodynamics; Energy & Fuels
GA AS7OH
UT WOS:000344444600050
ER
PT J
AU Gernaat, DEHJ
Van Vuuren, DP
Van Vliet, J
Sullivan, P
Arent, DJ
AF Gernaat, David E. H. J.
Van Vuuren, Detlef P.
Van Vliet, Jasper
Sullivan, Patrick
Arent, Douglas J.
TI Global long-term cost dynamics of offshore wind electricity generation
SO ENERGY
LA English
DT Article
DE Offshore wind; Renewables; Modelling; Integrated assessment model
AB Using the IMAGE/TIMER (The Targets IMage Energy Regional) long-term integrated assessment model, this paper explores the regional and global potential of offshore wind to contribute to global electricity production. We develop long-term cost supply curve for offshore wind, a representation of the potential suitable for inclusion in global integrated assessment models. For this, we combine available data on resource potential and cost estimates to estimate regional and global characteristics of offshore wind electricity generation. We find that for 2050, a baseline scenario would include about 4% of the total electricity production based on offshore wind. The findings also show that in most regions, technical potential is not a limiting factor. In some regions, that have a seriously constrained resource base for onshore wind, offshore wind could provide a key source of renewable energy, including South-East Asia, Indonesia and Brazil. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Gernaat, David E. H. J.; Van Vuuren, Detlef P.] Univ Utrecht, Copernicus Inst Sustainable Dev, NL-3584 CS Utrecht, Netherlands.
[Van Vuuren, Detlef P.; Van Vliet, Jasper] PBL Netherlands Environm Assessment Agcy, NL-3720 BA Bilthoven, Netherlands.
[Sullivan, Patrick; Arent, Douglas J.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Gernaat, DEHJ (reprint author), Univ Utrecht, Copernicus Inst Sustainable Dev, Heidelberglaan 2, NL-3584 CS Utrecht, Netherlands.
EM d.e.h.j.gernaat@uu.nl; detlef.vanvuuren@pbl.nl; jasper.vanvliet@pbl.nl;
patrick.Sullivan@nrel.gov; doug.Arent@nrel.gov
RI van Vuuren, Detlef/A-4764-2009;
OI van Vuuren, Detlef/0000-0003-0398-2831; Gernaat,
David/0000-0003-4994-1453
NR 40
TC 7
Z9 7
U1 0
U2 6
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-5442
EI 1873-6785
J9 ENERGY
JI Energy
PD NOV 1
PY 2014
VL 76
BP 663
EP 672
DI 10.1016/j.energy.2014.08.062
PG 10
WC Thermodynamics; Energy & Fuels
SC Thermodynamics; Energy & Fuels
GA AS7OH
UT WOS:000344444600065
ER
PT J
AU Zheng, YA
Hu, ZG
Wang, JH
Wen, Q
AF Zheng, Yanan
Hu, Zhaoguang
Wang, Jianhui
Wen, Quan
TI IRSP (integrated resource strategic planning) with interconnected smart
grids in integrating renewable energy and implementing DSM (demand side
management) in China
SO ENERGY
LA English
DT Article
DE Low carbon electricity; Integrated resource strategic planning;
Interconnected smart grids; Demand side management; Renewable energy;
China
ID POWER
AB The China's electricity consumption was 4966 TWh in 2012, which is the world top electricity consumer. The low carbon electricity is one of the key issues of its sustainable development. IRSP (integrated resource strategic planning) is a useful tool to implement DSM (demand side management) and power planning on the supply side. However, the role of interconnected smart grids with fast growing cross-region transmission is not considered in the IRSP. Therefore, the paper proposes the model of IRSP with interconnected smart grids to integrate more renewable power generation to the grids and implement more DSM projects, which is called as IRSP-sgs (IRSP smart grids) model. Two scenarios are projected to study the impact of cross-region transmission on low carbon electricity by using the IRSP-sgs model until 2025 in China. Results show that the scenario with enhanced cross-region transmission helps to reduce electricity generation by 784.38 TWh and reduce CO2 emission by 999.57 million tons during 2013-2025, since the multi-regional power operation can integrate more than 488.30 TWh renewable generation into the grids and implement more DSM projects to substitute generation. In addition, it also provides tremendous opportunities to improve the stable operation of the power system. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Zheng, Yanan; Hu, Zhaoguang; Wen, Quan] State Grid Energy Res Inst, Beijing 102200, Peoples R China.
[Wang, Jianhui] Argonne Natl Lab, Chicago, IL USA.
RP Zheng, YA (reprint author), State Grid Energy Res Inst, Beijing 102200, Peoples R China.
EM zhengyn@ncepu.edu.cn; huzhaoguang@sgeri.sgcc.com.cn;
jianhui.wang@anl.gov; wenquan@sgeri.sgcc.com.cn
NR 33
TC 9
Z9 10
U1 2
U2 15
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-5442
EI 1873-6785
J9 ENERGY
JI Energy
PD NOV 1
PY 2014
VL 76
BP 863
EP 874
DI 10.1016/j.energy.2014.08.087
PG 12
WC Thermodynamics; Energy & Fuels
SC Thermodynamics; Energy & Fuels
GA AS7OH
UT WOS:000344444600085
ER
PT J
AU Chakraborty, P
Biner, SB
AF Chakraborty, Pritam
Biner, S. Bulent
TI A unified cohesive zone approach to model the ductile to brittle
transition of fracture toughness in reactor pressure vessel steels
SO ENGINEERING FRACTURE MECHANICS
LA English
DT Article
DE Ductile brittle transition; Fracture; Cohesive zone model; Reactor
pressure vessel; Steel
ID CHARPY IMPACT TEST; CUP-CONE FRACTURE; VOID NUCLEATION; CRACK-GROWTH;
SIMULATION; DAMAGE; DECOHESION; INTERFACE; SOLIDS; CURVE
AB In this study, a unified cohesive zone model is proposed to predict the ductile to brittle transition of fracture toughness in reactor pressure vessel steels. A general procedure is described to obtain the temperature and failure probability dependent cohesive zone model parameters. In order to establish the full master-curve, the procedure requires calibration at two different temperatures with one at the upper shelf for ductile fracture and one near the lower shelf for cleavage failure. In the present study, these calibrations are performed using the experimental fracture toughness values and the flow curves. Subsequently, fracture simulations are performed on one-inch thick compact tension and 3-point bend specimens at different temperatures and the resulting fracture toughness values are compared with experiments. A satisfactory agreement is observed which indicates the viability of such a unified modeling approach. Published by Elsevier Ltd.
C1 [Chakraborty, Pritam; Biner, S. Bulent] Idaho Natl Lab, Fuel Modeling & Simulat Dept, Idaho Falls, ID 83402 USA.
RP Chakraborty, P (reprint author), Idaho Natl Lab, Fuel Modeling & Simulat Dept, Idaho Falls, ID 83402 USA.
EM pritam.chakraborty@inl.gov
FU Light Water Reactor Sustainability Program at Idaho National Laboratory
FX This work was funded through Light Water Reactor Sustainability Program
at Idaho National Laboratory.
NR 41
TC 2
Z9 2
U1 4
U2 13
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0013-7944
EI 1873-7315
J9 ENG FRACT MECH
JI Eng. Fract. Mech.
PD NOV
PY 2014
VL 131
BP 194
EP 209
DI 10.1016/j.engfracmech.2014.07.029
PG 16
WC Mechanics
SC Mechanics
GA AT5MO
UT WOS:000344987300012
ER
PT J
AU Vinikoor-Imler, LC
Owens, EO
Nichols, JL
Ross, M
Brown, JS
Sacks, JD
AF Vinikoor-Imler, Lisa C.
Owens, Elizabeth O.
Nichols, Jennifer L.
Ross, Mary
Brown, James S.
Sacks, Jason D.
TI Evaluating Potential Response-Modifying Factors for Associations between
Ozone and Health Outcomes: A Weight-of-Evidence Approach
SO ENVIRONMENTAL HEALTH PERSPECTIVES
LA English
DT Review
ID CASE-CROSSOVER ANALYSIS; INDUCED AIRWAY HYPERRESPONSIVENESS; INDUCED
PULMONARY INFLAMMATION; EMERGENCY-DEPARTMENT VISITS; INDUCED LUNG
INFLAMMATION; NITRIC-OXIDE SYNTHASE; TOLL-LIKE RECEPTOR-4; ASTHMATIC
SUBJECTS; MEXICO-CITY; ANTIOXIDANT SUPPLEMENTATION
AB Background: Epidemiologic and experimental studies have reported a variety of health effects in response to ozone (O-3) exposure, and some have indicated that certain populations may be at increased or decreased risk of O-3-related health effects.
Objectives: We sought to identify potential response-modifying factors to determine whether specific groups of the population or life stages are at increased or decreased risk of O-3-related health effects using a weight-of-evidence approach.
Methods: Epidemiologic, experimental, and exposure science studies of potential factors that may modify the relationship between O3 and health effects were identified in U. S. Environmental Protection Agency's 2013 Integrated Science Assessment for Ozone and Related Photochemical Oxidants. Scientific evidence from studies that examined factors that may influence risk were integrated across disciplines to evaluate consistency, coherence, and biological plausibility of effects. The factors identified were then classified using a weight-of-evidence approach to conclude whether a specific factor modified the response of a population or life stage, resulting in an increased or decreased risk of O-3-related health effects.
Discussion: We found "adequate" evidence that populations with certain genotypes, preexisting asthma, or reduced intake of certain nutrients, as well as different life stages or outdoor workers, are at increased risk of O-3-related health effects. In addition, we identified other factors (i.e., sex, socioeconomic status, and obesity) for which there was "suggestive" evidence that they may increase the risk of O-3-related health effects.
Conclusions: Using a weight-of-evidence approach, we identified a diverse group of factors that should be considered when characterizing the overall risk of health effects associated with exposures to ambient O-3.
C1 [Vinikoor-Imler, Lisa C.; Owens, Elizabeth O.; Ross, Mary; Brown, James S.; Sacks, Jason D.] US EPA, NCEA, Res Triangle Pk, NC 27711 USA.
[Nichols, Jennifer L.] US EPA, NCEA, Oak Ridge Inst Sci & Educ, Off Res & Dev, Res Triangle Pk, NC 27711 USA.
RP Vinikoor-Imler, LC (reprint author), 109 TW Alexander Dr,MD B243-01, Res Triangle Pk, NC 27711 USA.
EM vinikoor-imler.lisa@epa.gov
FU National Center of Environmental Assessment, Office of Research and
Development, U.S. EPA
FX This project was supported in part by the appointment of J.L.N. to the
Research Participation Program at the National Center of Environmental
Assessment, Office of Research and Development, U.S. EPA, administered
by the Oak Ridge Institute for Science and Education through an
interagency agreement between the U.S. Department of Energy
NR 141
TC 8
Z9 8
U1 2
U2 22
PU US DEPT HEALTH HUMAN SCIENCES PUBLIC HEALTH SCIENCE
PI RES TRIANGLE PK
PA NATL INST HEALTH, NATL INST ENVIRONMENTAL HEALTH SCIENCES, PO BOX 12233,
RES TRIANGLE PK, NC 27709-2233 USA
SN 0091-6765
EI 1552-9924
J9 ENVIRON HEALTH PERSP
JI Environ. Health Perspect.
PD NOV
PY 2014
VL 122
IS 11
BP 1166
EP 1176
DI 10.1289/ehp.1307541
PG 11
WC Environmental Sciences; Public, Environmental & Occupational Health;
Toxicology
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Toxicology
GA AT2IZ
UT WOS:000344759500017
PM 24927060
ER
PT J
AU Yang, YQ
Zhang, ZC
Luo, SZ
Rao, LF
AF Yang, Yanqiu
Zhang, Zhicheng
Luo, Shunzhong
Rao, Linfeng
TI Complexation of Np-V Ions with 1,10-Phenanthroline-2,9-dicarboxylic
Acid: Spectrophotometric and Microcalorimetric Studies
SO EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
LA English
DT Article
DE Actinides; Chelates; N,O ligands; Carboxylate ligands; Coordination
modes
ID DIPICOLINIC ACID; EQUILIBRIUM-CONSTANTS; EXTRACTION PROPERTIES;
DIAMIDES; NEPTUNIUM(V); SELECTIVITY; LIGAND; URANIUM(VI); HYDROLYSIS;
CHEMISTRY
AB The complexation of Np-V ions with a tetradentate ligand with oxygen and nitrogen donors, 1,10-phenanthroline-2,9-dicarboxylic acid (denoted as H2L), was studied in aqueous solutions by spectrophotometric and calorimetric methods. Np-V ions form a very strong 1:1 complex, NpO2L-, with the stability constant log beta = 11.73 +/- 0.02 in 0.1 M NaClO4 at 25 degrees C. It is a much stronger complex than those of Np-V ions with related ligands such as picolinic acid or dipicolinic acid, as the higher denticity of 1,10-phenanthroline-2,9-dicarboxylic acid results in a larger entropic effect on the complexation. It is expected that the amide derivatives of 1,10-phenanthroline-2,9-dicarboxylic acid would be excellent extractants in the separation of Np-V ions, which are problematic in actinide separation processes owing to their very low extractability by many extractants.
C1 [Yang, Yanqiu; Luo, Shunzhong] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Sichuan, Peoples R China.
[Yang, Yanqiu; Zhang, Zhicheng; Rao, Linfeng] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Luo, SZ (reprint author), China Acad Engn Phys, Inst Nucl Phys & Chem, 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 Lawrence Berkeley National Laboratory
[DE-AC02-05CH11231]; National Natural Science Foundation of China (NSFC)
[91026022]
FX The experimental work was 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 Lawrence Berkeley National
Laboratory. Y. Y. thanks the National Natural Science Foundation of
China (NSFC) (grant number 91026022) for the support in the preparation
of the manuscript.
NR 36
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Z9 4
U1 3
U2 22
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1434-1948
EI 1099-0682
J9 EUR J INORG CHEM
JI Eur. J. Inorg. Chem.
PD NOV
PY 2014
IS 32
BP 5561
EP 5566
DI 10.1002/ejic.201402520
PG 6
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA AT2UL
UT WOS:000344791900012
ER
PT J
AU Harvey, BM
Rana, NA
Wang, T
Li, HL
Haltiwanger, RS
AF Harvey, Beth M.
Rana, Nadia A.
Wang, Tong
Li, Huilin
Haltiwanger, Robert S.
TI The Molecular Mechanisms of Fringe Modification on Drosophila Notch:
Examining the Structure and Function of Notch EGF Repeats
SO GLYCOBIOLOGY
LA English
DT Meeting Abstract
CT Joint Meeting of the Society-for-Glycobiology (SFG) and the
Japanese-Society-of-Carbohydrate-Research (JSCR)
CY NOV 16-19, 2014
CL Honolulu, HI
SP Society For Glycobiology, Japanese Soc Carbohydrate Res
C1 [Harvey, Beth M.; Rana, Nadia A.; Haltiwanger, Robert S.] SUNY Stony Brook, Dept Biochem & Cell Biol, Stony Brook, NY 11794 USA.
[Wang, Tong; Li, Huilin] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 0959-6658
EI 1460-2423
J9 GLYCOBIOLOGY
JI Glycobiology
PD NOV
PY 2014
VL 24
IS 11
MA 25
BP 1093
EP 1093
PG 1
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA AT1CI
UT WOS:000344670300033
ER
PT J
AU Mohnen, D
Biswal, AK
Hao, ZY
Engle, K
Amos, R
Tan, L
Atmodjo, M
Mohanty, SS
Ryno, D
Sykess, RW
AF Mohnen, Debra
Biswal, Ajaya K.
Hao, Zhangying
Engle, Kristen
Amos, Robert
Tan, Li
Atmodjo, Melani
Mohanty, Sushree S.
Ryno, David
Sykess, Robert W.
TI Biosynthesis and Mutant Studies Indicate Roles for Pectin and
Pectin-containing Proteoglycans in Plant Cell Wall Architectural
Integrity and Plant Growth
SO GLYCOBIOLOGY
LA English
DT Meeting Abstract
CT Joint Meeting of the Society-for-Glycobiology (SFG) and the
Japanese-Society-of-Carbohydrate-Research (JSCR)
CY NOV 16-19, 2014
CL Honolulu, HI
SP Society For Glycobiology, Japanese Soc Carbohydrate Res
C1 [Mohnen, Debra; Biswal, Ajaya K.; Hao, Zhangying; Engle, Kristen; Amos, Robert; Tan, Li; Atmodjo, Melani; Mohanty, Sushree S.; Ryno, David; Sykess, Robert W.] Univ Georgia, Athens, GA 30602 USA.
Natl Renewable Energy Lab, Golden, CO USA.
Oakridge Natl Lab, Oakridge, TN USA.
Noble Fdn Inc, Ardmore, OK USA.
NR 0
TC 0
Z9 0
U1 1
U2 2
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 0959-6658
EI 1460-2423
J9 GLYCOBIOLOGY
JI Glycobiology
PD NOV
PY 2014
VL 24
IS 11
MA 43
BP 1100
EP 1101
PG 2
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA AT1CI
UT WOS:000344670300051
ER
PT J
AU Ebert, B
Rautengarten, C
Schultink, A
Pauly, M
Herter, T
Mortimer, J
Moreno, I
Orellana, A
Heazlewood, J
Scheller, H
AF Ebert, Berit
Rautengarten, Carsten
Schultink, Alex
Pauly, Markus
Herter, Thomas
Mortimer, Jenny
Moreno, Ignacio
Orellana, Ariel
Heazlewood, Joshua
Scheller, Henrik
TI Identification of novel nucleotide sugar transporters in plants and
animals
SO GLYCOBIOLOGY
LA English
DT Meeting Abstract
CT Joint Meeting of the Society-for-Glycobiology (SFG) and the
Japanese-Society-of-Carbohydrate-Research (JSCR)
CY NOV 16-19, 2014
CL Honolulu, HI
SP Society For Glycobiology, Japanese Soc Carbohydrate Res
C1 [Ebert, Berit; Rautengarten, Carsten; Herter, Thomas; Mortimer, Jenny; Heazlewood, Joshua; Scheller, Henrik] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Ebert, Berit] Univ Copenhagen, DK-1168 Copenhagen, Denmark.
[Schultink, Alex; Pauly, Markus; Scheller, Henrik] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Moreno, Ignacio; Orellana, Ariel] Univ Andras Bello, Santiago, Chile.
RI Ebert, Berit/F-1856-2016; Pauly, Markus/B-5895-2008; Scheller,
Henrik/A-8106-2008
OI Ebert, Berit/0000-0002-6914-5473; Pauly, Markus/0000-0002-3116-2198;
Scheller, Henrik/0000-0002-6702-3560
NR 0
TC 0
Z9 0
U1 0
U2 5
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 0959-6658
EI 1460-2423
J9 GLYCOBIOLOGY
JI Glycobiology
PD NOV
PY 2014
VL 24
IS 11
MA 267
BP 1183
EP 1183
PG 1
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA AT1CI
UT WOS:000344670300273
ER
PT J
AU Wang, ZY
Chen, H
Wang, JH
Begovic, M
AF Wang, Zhaoyu
Chen, Hao
Wang, Jianhui
Begovic, Miroslav
TI Inverter-Less Hybrid Voltage/Var Control for Distribution Circuits With
Photovoltaic Generators
SO IEEE TRANSACTIONS ON SMART GRID
LA English
DT Article
DE Distributed generators; distribution systems; photovoltaic (PV)
generation; reactive power control; voltage control
ID DISTRIBUTION-SYSTEM; VOLT/VAR CONTROL; REACTIVE POWER; CAPACITORS; ULTC;
COORDINATION; REDUCTION; DISPATCH; SVC
AB This paper proposes a hybrid voltage/var control (VVC) architecture for distribution systems with a high PV penetration. The architecture consists of two control loops: coordinated normal control loop and uncoordinated transient cloud movement control loop. In the first loop, hourly dispatches are scheduled for on-load tap changer (OLTC), capacitor banks (CBs), and static var compensators (SVCs) based on forecasted load and PV power output so as to minimize power losses and voltage deviations. The second loop is triggered when large variations of PV power output caused by rapid cloud movement happen. All SVCs and CBs become self-controlled based on local voltage measurements with the single control objective to minimize voltage deviations. SVCs will operate firstly to flatten the voltage profile. If SVCs fail, CBs will switch to provide reactive power support. A time-adaptive delay is applied to each CB to avoid overcompensation. Case studies show the proposed method can optimize the system operation and is effective in voltage regulation with PV generators.
C1 [Wang, Zhaoyu; Chen, Hao; Begovic, Miroslav] Georgia Inst Technol, Atlanta, GA 30332 USA.
[Wang, Jianhui] Argonne Natl Lab, Lemont, IL 60439 USA.
[Begovic, Miroslav] Georgia Inst Technol, Sch Elect Engn, Elect Energy Tech Interest Grp, Atlanta, GA 30332 USA.
RP Wang, ZY (reprint author), Georgia Inst Technol, Atlanta, GA 30332 USA.
EM zhaoyuwang@gatech.edu; hchen95@gatech.edu; jianhui.wang@anl.gov;
miroslav@ece.gatech.edu
FU Argonne, a U.S. Department of Energy Office of Science Laboratory [DE
AC02-06CH11357]
FX The submitted manuscript has been created by UChicago Argonne, LLC,
Operator of Argonne National Laboratory ("Argonne"). Argonne, a U.S.
Department of Energy Office of Science Laboratory, is operated under
Contract DE AC02-06CH11357. The U.S. Government retains for itself, and
others acting on its behalf, a paid-up nonexclusive, irrevocable
worldwide license in said article to reproduce, prepare derivative
works, distribute copies to the public, and perform publicly and display
publicly, by or on behalf of the Government.
NR 37
TC 4
Z9 4
U1 0
U2 1
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1949-3053
EI 1949-3061
J9 IEEE T SMART GRID
JI IEEE Trans. Smart Grid
PD NOV
PY 2014
VL 5
IS 6
BP 2718
EP 2728
DI 10.1109/TSG.2014.2324569
PG 11
WC Engineering, Electrical & Electronic
SC Engineering
GA AS9CY
UT WOS:000344542000007
ER
PT J
AU Wilkerson, KR
Smith, JD
Hemrick, JG
AF Wilkerson, Kelley R.
Smith, Jeffrey D.
Hemrick, James G.
TI Metastability in the MgAl2O4-Al2O3 System
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID MAGNESIUM ALUMINATE SPINEL; SOLID-SOLUTIONS; PRECIPITATION; MGO-AL2O3
AB Aluminum oxide must take a spinel form (-Al2O3) at increased temperatures in order for extensive solid solution to form between MgAl2O4 and -Al2O3. The solvus line between MgAl2O4 and Al2O3 has been defined at 79.6 wt% Al2O3 at 1500 degrees C, 83.0 wt% Al2O3 at 1600 degrees C, and 86.5 wt% Al2O3 at 1700 degrees C. A metastable region has been defined at temperatures up to 1700 degrees C which could have significant implications for material processing and properties. Additionally, initial processing could have major implications on final chemistry.
C1 [Wilkerson, Kelley R.; Smith, Jeffrey D.] Missouri Univ Sci & Technol, Rolla, MO 65409 USA.
[Hemrick, James G.] Oak Ridge Natl Lab, Mech Properties & Mech Grp, Oak Ridge, TN 37831 USA.
RP Wilkerson, KR (reprint author), Missouri Univ Sci & Technol, Rolla, MO 65409 USA.
EM kelley.wilkerson@alliedmin.com
FU Industrial Technologic Program, U.S. Department of Energy [CPS 14954]
FX Financial support by the Industrial Technologic Program, U.S. Department
of Energy, under award number CPS Agreement no. 14954.
NR 25
TC 0
Z9 0
U1 5
U2 10
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1546-542X
EI 1744-7402
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PD NOV-DEC
PY 2014
VL 11
IS 6
BP 1020
EP 1024
DI 10.1111/ijac.12294
PG 5
WC Materials Science, Ceramics
SC Materials Science
GA AS9YJ
UT WOS:000344594000008
ER
PT J
AU Ansoborlo, E
Menager, MT
Abergel, RJ
AF Ansoborlo, Eric
Menager, Marie-Therese
Abergel, Rebecca J.
TI 11th International Conference on Health Effects of Incorporated
Radionuclides INTRODUCTION TO THE SPECIAL ISSUE
SO INTERNATIONAL JOURNAL OF RADIATION BIOLOGY
LA English
DT Editorial Material
C1 [Ansoborlo, Eric] Commissariat Energie Atom & Energies Alternat, Radiochem & Proc Dept, Marcoule Ctr, Bagnols Sur Ceze, France.
[Menager, Marie-Therese] Commissariat Energie Atom & Energies Alternat, Life Sci Direct, Fontenay Aux Roses, France.
[Abergel, Rebecca J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Abergel, RJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, One Cyclotron Rd,MS 70A-1150, Berkeley, CA 94720 USA.
EM rjabergel@lbl.gov
RI Eric, Ansoborlo/N-1809-2015
OI Eric, Ansoborlo/0000-0003-0523-3738
NR 23
TC 0
Z9 0
U1 1
U2 7
PU INFORMA HEALTHCARE
PI LONDON
PA TELEPHONE HOUSE, 69-77 PAUL STREET, LONDON EC2A 4LQ, ENGLAND
SN 0955-3002
EI 1362-3095
J9 INT J RADIAT BIOL
JI Int. J. Radiat. Biol.
PD NOV
PY 2014
VL 90
IS 11
SI SI
BP 945
EP 947
DI 10.3109/09553002.2014.965603
PG 3
WC Biology; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
SC Life Sciences & Biomedicine - Other Topics; Nuclear Science &
Technology; Radiology, Nuclear Medicine & Medical Imaging
GA AS8GC
UT WOS:000344486900001
PM 25363314
ER
PT J
AU Leggett, R
Ansoborlo, E
Bailey, M
Gregoratto, D
Paquet, F
Taylor, D
AF Leggett, Rich
Ansoborlo, Eric
Bailey, Michael
Gregoratto, Demetrio
Paquet, Francois
Taylor, David
TI Biokinetic data and models for occupational intake of lanthanoids
SO INTERNATIONAL JOURNAL OF RADIATION BIOLOGY
LA English
DT Article
DE Lanthanoids; lanthanides; radionuclides; biokinetics; models; workplace;
exposure
ID RARE-EARTH-ELEMENTS; STABILITY-CONSTANTS; METAL-COMPLEXES; AMINO-ACIDS;
RADIOPROMETHIUM 147PM; SOLUBILITY PRODUCTS; CONTINENTAL-CRUST; TECHNICAL
REPORT; SIDE-CHAINS; BEAGLE DOGS
AB Purpose: This paper reviews data related to the behavior of the lanthanoid elements (lanthanum through lutetium, atomic numbers 57-71) in the human body and proposes biokinetic models for internally deposited radio-lanthanoids in workers.
Materials and methods: Published data on the following topics are reviewed and analyzed: Physico-chemical properties of the lanthanoids as indicators of the potential behavior of these elements in body fluids; the concentrations of the stable lanthanoids in the environment and human body; and results of biokinetic studies of radio-lanthanoids in human subjects and laboratory animals. Respiratory and systemic biokinetic models and gastrointestinal absorption fractions are developed or selected in an effort to represent the typical behavior of lanthanoids in adult humans.
Results and conclusions: Generic (element-independent) absorption rates from the respiratory and alimentary tracts to blood and systemic biokinetic models are proposed. The systemic models are largely generic but include some element-specific parameter values to reflect regular changes with ionic radius in certain aspects of the behavior of the lanthanoids, particularly fractional deposition in liver and bone and early removal in urine.
C1 [Leggett, Rich] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Ansoborlo, Eric] French Atom Energy Commiss, Radiochem & Proc Dept, St Paul Les Durance, France.
[Ansoborlo, Eric] Marcoule Nucl Site, Alternat Energies, Chusclan, France.
[Bailey, Michael; Gregoratto, Demetrio] Publ Hlth England, Ctr Radiat Chem & Environm Hazards, Didcot, Oxon, England.
[Paquet, Francois] Radioprotect & Nucl Safety Inst, Inst Radioprotect & Surete Nucl, Fontenay Aux Roses, France.
[Taylor, David] Cardiff Univ, Dept Chem, Cardiff CF10 3AX, S Glam, Wales.
RP Leggett, R (reprint author), Oak Ridge Natl Lab, Div Environm Sci, Bldg 5700, Oak Ridge, TN 37831 USA.
EM rwl@ornl.gov
RI Eric, Ansoborlo/N-1809-2015
OI Eric, Ansoborlo/0000-0003-0523-3738
FU Office of Radiation and Indoor Air, U. S. Environmental Protection
Agency (EPA), under Interagency Agreement DOE [1824 S581-A1,
DE-AC05-00OR22725]; UT-Battelle; U.S. Government [DE-AC05-00OR22725]
FX The work of the first author was sponsored by the Office of Radiation
and Indoor Air, U. S. Environmental Protection Agency (EPA), under
Interagency Agreement DOE No. 1824 S581-A1, under contract No.
DE-AC05-00OR22725 with UT-Battelle. The submitted manuscript has been
authored in part by a contractor of the U.S. Government under contract
DE-AC05-00OR22725. Accordingly, 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.
NR 82
TC 4
Z9 4
U1 7
U2 14
PU INFORMA HEALTHCARE
PI LONDON
PA TELEPHONE HOUSE, 69-77 PAUL STREET, LONDON EC2A 4LQ, ENGLAND
SN 0955-3002
EI 1362-3095
J9 INT J RADIAT BIOL
JI Int. J. Radiat. Biol.
PD NOV
PY 2014
VL 90
IS 11
SI SI
BP 996
EP 1010
DI 10.3109/09553002.2014.887868
PG 15
WC Biology; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
SC Life Sciences & Biomedicine - Other Topics; Nuclear Science &
Technology; Radiology, Nuclear Medicine & Medical Imaging
GA AS8GC
UT WOS:000344486900008
PM 24475737
ER
PT J
AU An, DD
Villalobos, JA
Morales-Rivera, JA
Rosen, CJ
Bjornstad, KA
Gauny, SS
Choi, TA
Sturzbecher-Hoehne, M
Abergel, RJ
AF An, Dahlia D.
Villalobos, Jonathan A.
Morales-Rivera, Joel A.
Rosen, Chris J.
Bjornstad, Kathleen A.
Gauny, Stacey S.
Choi, Taylor A.
Sturzbecher-Hoehne, Manuel
Abergel, Rebecca J.
TI Pu-238 elimination profiles after delayed treatment with
3,4,3LI(1,2HOPO) in female and male Swiss-Webster mice
SO INTERNATIONAL JOURNAL OF RADIATION BIOLOGY
LA English
DT Article
DE Alpha emitters; plutonium; radiation protection; radionuclides; medical
countermeasures; chelation therapy
ID RADIONUCLIDE DECORPORATION AGENTS; HYDROXYPYRIDINONATE LIGANDS; MEDICAL
COUNTERMEASURES; ACTINIDE DECORPORATION; CHELATING-AGENTS; IN-VIVO;
PLUTONIUM; EFFICACY; CONTAMINATION; MOUSE
AB Purpose : To characterize the dose-dependent and sex-related efficacy of the hydroxypyridinonate decorporation agent 3,4,3-LI(1,2-HOPO) at enhancing plutonium elimination when post-exposure treatment is delayed.
Materials and methods : Six parenteral dose levels of 3,4,3-LI(1,2HOPO) from 1-300 mu mol/kg were evaluated for decorporating plutonium in female and male Swiss-Webster mice administered a soluble citrate complex of (WPu)-W-238 and treated 24 hours later. Necropsies were scheduled at four time-points (2, 4, 8, and 15 days post-contamination) for the female groups and at three time-points (2, 4, and 8 days post-contamination) for the male groups.
Results : Elimination enhancement was dose-dependent in the 1-100 mu mol/kg dose range at all necropsy time-points, with some significant reductions in full body and tissue content for both female and male animals. The highest dose level resulted in slight toxicity, with a short recovery period, which delayed excretion of the radionuclide.
Conclusions : While differences were noted between the female and male cohorts in efficacy range and recovery times, all groups displayed sustained dose-dependent 238 Pu elimination enhancement after delayed parenteral treatment with 3,4,3-LI(1,2-HOPO), the actinide decorporation agent under development.
C1 [An, Dahlia D.; Villalobos, Jonathan A.; Morales-Rivera, Joel A.; Choi, Taylor A.; Sturzbecher-Hoehne, Manuel; Abergel, Rebecca J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Rosen, Chris J.; Bjornstad, Kathleen A.; Gauny, Stacey S.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA.
RP Abergel, RJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, One Cyclotron Rd,MS 70A-1150, Berkeley, CA 94720 USA.
EM rjabergel@lbl.gov
FU Biomedical Advanced Research and Development Authority (BARDA) at the E.
O. Lawrence Berkeley National Laboratory, a U.S. Department of Energy
Laboratory [IPIAA12OS99609, DE-AC02-05CH11231]
FX This work was supported by the Biomedical Advanced Research and
Development Authority (BARDA, Contract #IPIAA12OS99609) at the E. O.
Lawrence Berkeley National Laboratory, a U.S. Department of Energy
Laboratory under Contract No. DE-AC02-05CH11231.
NR 29
TC 4
Z9 4
U1 0
U2 6
PU INFORMA HEALTHCARE
PI LONDON
PA TELEPHONE HOUSE, 69-77 PAUL STREET, LONDON EC2A 4LQ, ENGLAND
SN 0955-3002
EI 1362-3095
J9 INT J RADIAT BIOL
JI Int. J. Radiat. Biol.
PD NOV
PY 2014
VL 90
IS 11
SI SI
BP 1055
EP 1061
DI 10.3109/09553002.2014.925150
PG 7
WC Biology; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
SC Life Sciences & Biomedicine - Other Topics; Nuclear Science &
Technology; Radiology, Nuclear Medicine & Medical Imaging
GA AS8GC
UT WOS:000344486900016
PM 24937372
ER
PT J
AU King, W
AF King, Wayne
TI ADVANCING METAL AM AT ITS MOST FUNDAMENTAL LEVEL
SO JOM
LA English
DT News Item
ID SIMULATION; POWDER; MODEL
C1 Lawrence Livermore Natl Lab, Accelerated Certificat Additively Manufactured Me, Livermore, CA 94550 USA.
RP King, W (reprint author), Lawrence Livermore Natl Lab, Accelerated Certificat Additively Manufactured Me, Livermore, CA 94550 USA.
NR 8
TC 1
Z9 1
U1 2
U2 8
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1047-4838
EI 1543-1851
J9 JOM-US
JI JOM
PD NOV
PY 2014
VL 66
IS 11
BP 2202
EP 2203
PG 2
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering; Mineralogy; Mining & Mineral Processing
SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy;
Mining & Mineral Processing
GA AT0IA
UT WOS:000344618900009
ER
PT J
AU Deng, M
Kollias, P
Feng, Z
Zhang, CD
Long, CN
Kalesse, H
Chandra, A
Kumar, VV
Protat, A
AF Deng, Min
Kollias, Pavlos
Feng, Zhe
Zhang, Chidong
Long, Charles N.
Kalesse, Heike
Chandra, Arunchandra
Kumar, Vickal V.
Protat, Alain
TI Stratiform and Convective Precipitation Observed by Multiple Radars
during the DYNAMO/AMIE Experiment
SO JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
LA English
DT Article
DE Algorithms; Instrumentation; sensors; Radars; Radar observations; Remote
sensing; Surface observations
ID RADIATION MEASUREMENT PROGRAM; Z-R-RELATIONSHIPS; SIZE DISTRIBUTIONS;
RAINDROP SPECTRA; CLOUD; REFLECTIVITY; ATTENUATION; TROPICS; MODEL; TRMM
AB In this study, methods of convective/stratiform precipitation classification and surface rain-rate estimation based on the Atmospheric Radiation Measurement Program (ARM) cloud radar measurements were developed and evaluated. Simultaneous and collocated observations of the Ka-band ARM zenith radar (KAZR), two scanning precipitation radars [NCAR S-band/Ka-band Dual Polarization, Dual Wavelength Doppler Radar (S-PolKa) and Texas A&M University Shared Mobile Atmospheric Research and Teaching Radar (SMART-R)], and surface precipitation during the Dynamics of the Madden-Julian Oscillation/ARM MJO Investigation Experiment (DYNAMO/AMIE) field campaign were used. The motivation of this study is to apply the unique long-term ARM cloud radar observations without accompanying precipitation radars to the study of cloud life cycle and precipitation features under different weather and climate regimes. The resulting convective/stratiform classification from KAZR was evaluated against precipitation radars. Precipitation occurrence and classified convective/stratiform rain fractions from KAZR compared favorably to the collocated SMART-R and S-PolKa observations. Both KAZR and S-PolKa radars observed about 5% precipitation occurrence. The convective (stratiform) precipitation fraction is about 18% (82%). Collocated disdrometer observations of two days showed an increased number concentration of small and large raindrops in convective rain relative to dominant small raindrops in stratiform rain. The composite distributions of KAZR reflectivity and Doppler velocity also showed distinct structures for convective and stratiform rain. These evidences indicate that the method produces physically consistent results for the two types of rain. A new KAZR-based, two-parameter [the gradient of accumulative radar reflectivity Z(e) (GAZ) below 1 km and near-surface Z(e)] rain-rate estimation procedure was developed for both convective and stratiform rain. This estimate was compared with the exponential Z-R (reflectivity-rain rate) relation. The relative difference between the estimated and surface-measured rainfall rates showed that the two-parameter relation can improve rainfall estimation relative to the Z-R relation.
C1 [Deng, Min] Univ Wyoming, Laramie, WY 82071 USA.
[Kollias, Pavlos; Kalesse, Heike] McGill Univ, Montreal, PQ, Canada.
[Feng, Zhe; Long, Charles N.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Zhang, Chidong; Chandra, Arunchandra] Univ Miami, Miami, FL USA.
[Kumar, Vickal V.; Protat, Alain] Ctr Australian Weather & Climate Res, Melbourne, Vic, Australia.
RP Deng, M (reprint author), Univ Wyoming, Dept Atmospher Sci, Dept 3038,1000 East Univ Ave, Laramie, WY 82071 USA.
EM mdeng2@uwyo.edu
RI Feng, Zhe/E-1877-2015
OI Feng, Zhe/0000-0002-7540-9017
FU Office of Science of the U. S. Department of Energy as part of the
Atmospheric Systems Research Program
FX This work is supported by the Office of Science of the U. S. Department
of Energy as part of the Atmospheric Systems Research Program and uses
data from the Atmospheric Radiation Measurement Climate Research
Facility. We are grateful for the NCAR S-PolKa team, Texas A&M
University SMART-R team, and ARM AMF2 team for providing the quality
radar and precipitation data used in this study. The authors thank Drs.
Sergey Y. Matrosov from CIRES/University of Colorado and NOAA/ESRL and
Samuel Haimov, Dave Leon, and Zhien Wang from University of Wyoming for
their suggestion and comments and three anonymous reviewers for their
thorough comments and constructive criticisms.
NR 58
TC 4
Z9 4
U1 2
U2 18
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 1558-8424
EI 1558-8432
J9 J APPL METEOROL CLIM
JI J. Appl. Meteorol. Climatol.
PD NOV
PY 2014
VL 53
IS 11
BP 2503
EP 2523
DI 10.1175/JAMC-D-13-0311.1
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA AT4UL
UT WOS:000344938500006
ER
PT J
AU Gao, F
Walter, ED
Kollar, M
Wang, YL
Szanyi, J
Peden, CHF
AF Gao, Feng
Walter, Eric D.
Kollar, Marton
Wang, Yilin
Szanyi, Janos
Peden, Charles H. F.
TI Understanding ammonia selective catalytic reduction kinetics over
Cu/SSZ-13 from motion of the Cu ions
SO JOURNAL OF CATALYSIS
LA English
DT Article
DE Selective catalytic reduction; Cu/SSZ-13; Electron paramagnetic
resonance; Reaction kinetics; Reaction mechanism
ID SSZ-13 ZEOLITE; NO OXIDATION; EXCHANGED SSZ-13; ACTIVE-SITES;
NITRIC-OXIDE; CU-SSZ-13; NH3; SCR; IDENTIFICATION; FE-ZSM-5
AB Cu/SSZ-13 catalysts with Si/Al = 6 and various Cu/Al ratios are synthesized with solution ion exchange. Catalysts are characterized with surface area/pore volume measurements, Temperature Programmed Reduction (TPR), and Electron Paramagnetic Resonance (EPR) spectroscopy. Catalytic properties are examined using NO oxidation, ammonia oxidation, and standard ammonia selective catalytic reduction (NH3-SCR) reactions. Prior to full dehydration of the zeolite catalysts, hydrated Cu2+ ions are found to be very mobile as judged from EPR. NO oxidation is catalyzed by O-bridged Cu-dimer species that form at relatively high Cu loadings and in the presence of O-2. For NH3 oxidation on samples with low to intermediate Cu loadings, transient Cu-dimers are the low-temperature (<= 300 degrees C) active centers, while these dissociate to monomers at 350 degrees C and above and become active centers. For the much more complex standard SCR reaction, transient Cu-dimers are the active sites for reaction temperatures <250 degrees C at very low Cu loadings (Cu/Al <= 0.016). Between similar to 250 and 350 degrees C, these Cu-dimers become less stable causing SCR reaction rates to decrease. At temperatures >= 350 degrees C, Cu2+ monomers that had migrated to faces of 6-membered rings are the active sites. At intermediate Cu loadings, monomeric Cu2+ ions are also active in SCR in the low-temperature regime; these are proposed to be located within CHA cages and next to 8-membered rings, likely in the form of [Cu(OH)](+). At high Cu loadings (i.e., more than one Cu2+ ion in each unit cell), stable Cu-dimers form and these do not dissociate at temperatures above 350 degrees C. These moieties effectively occupy CHA cage space and block pore openings causing decreased efficiency of the catalysts. Also these moieties are highly active in catalyzing the NH3 oxidation reaction thus causing SCR selectivities to decrease above similar to 450 degrees C. Finally, our kinetics results strongly support a redox mechanism for standard SCR. Published by Elsevier Inc.
C1 [Gao, Feng; Walter, Eric D.; Kollar, Marton; Wang, Yilin; Szanyi, Janos; Peden, Charles H. F.] Pacific NW Natl Lab, Inst Integrated Catalysis, Richland, WA 99352 USA.
RP Gao, F (reprint author), Pacific NW Natl Lab, Inst Integrated Catalysis, POB 999, Richland, WA 99352 USA.
EM feng.gao@pnnl.gov; janos.szanyi@pnnl.gov; chuck.peden@pnnl.gov
RI Walter, Eric/P-9329-2016
FU United States Department of Energy (DOE), Energy Efficiency and
Renewable Energy, Vehicle Technologies Office
FX The authors gratefully acknowledge the United States Department of
Energy (DOE), Energy Efficiency and Renewable Energy, Vehicle
Technologies Office for the support of this work. The research described
in this paper was performed at the Environmental Molecular Sciences
Laboratory (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 operated for the
US DOE by Battelle. The authors also thank Shari Li (PNNL) for surface
area/pore volume measurements, and Bruce W. Arey (PNNL) for SEM
measurements. Discussions with Drs. A. Yezerets, K. Kamasamudram, J.H.
Li, N. Currier and J.Y. Luo from Cummins, Inc., and H.Y. Chen and H.
Hess from Johnson-Matthey are greatly appreciated.
NR 40
TC 43
Z9 43
U1 23
U2 169
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9517
EI 1090-2694
J9 J CATAL
JI J. Catal.
PD NOV
PY 2014
VL 319
BP 1
EP 14
DI 10.1016/j.jcat.2014.08.010
PG 14
WC Chemistry, Physical; Engineering, Chemical
SC Chemistry; Engineering
GA AS7LK
UT WOS:000344437400001
ER
PT J
AU Hibbitts, DD
Jimenez, R
Yoshimura, M
Weiss, B
Iglesia, E
AF Hibbitts, David D.
Jimenez, Rome
Yoshimura, Masayuki
Weiss, Brian
Iglesia, Enrique
TI Catalytic NO activation and NO-H-2 reaction pathways
SO JOURNAL OF CATALYSIS
LA English
DT Article
DE Nitric oxide reduction; Platinum; Cluster size effects; Kinetic isotope
effects; Density functional theory
ID SILICA-SUPPORTED RHODIUM; METAL BASED CATALYSTS; GENERALIZED GRADIENT
APPROXIMATION; INITIO MOLECULAR-DYNAMICS; FISCHER-TROPSCH SYNTHESIS;
AUGMENTED-WAVE METHOD; LEAN-BURN CONDITIONS; NO+H-2 REACTION; SELECTIVE
OXIDATION; PT/SIO2 CATALYSTS
AB Kinetic and isotopic data on Pt clusters and activation free energy barriers from density functional theory (DFT) on Pt(1 1 1) are used to assess the elementary steps involved in NO-H-2 reactions. Pt clusters 1-10 nm in diameter gave similar turnover rates, indicating that these elementary steps are insensitive to surface-atom coordination. N-O cleavage occurs after sequential addition of two chemisorbed H-atoms (H*) to NO* which are quasi-equilibrated with H-2 and NO co-reactants. The first step is equilibrated and forms HNO*, while the second addition is irreversible and forms *HNOH*; this latter step limits NO-H-2 rates and forms OH* and NH* intermediates that undergo fast reactions to give H2O, N2O, NH3, and N-2. These conclusions are consistent with (i) measured normal H/D kinetic isotope effects; (ii) rates proportional to H-2 pressure, but reaching constant values at higher pressures; (iii) fast H-2-D-2 equilibration during catalysis; and (iv) DFT-derived activation barriers. These data and calculations, taken together, rule out N-O cleavage via N-O* reactions with another NO* (forming O* and N2O) or with vicinal vacancies (forming N* and O*), which have much higher barriers than H*-assisted routes. The cleavage of N-O bonds via *HNOH* intermediates is reminiscent of C-O cleavage in CO-H-2 reactions (via (HCOH)-H-**) and of O-O cleavage in O-2-H-2 reactions (via OOH* or *HOOH*). H*-addition weakens the multiple bonds in NO, CO, and O-2 and allows coordination of each atom to metal surfaces; as a result, dissociation occurs via such assisted routes at all surface coverages relevant in the practice of catalysis. (C) 2014 Published by Elsevier Inc.
C1 [Hibbitts, David D.; Jimenez, Rome; Yoshimura, Masayuki; Weiss, Brian; Iglesia, Enrique] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
[Iglesia, Enrique] EO Lawrence Berkeley Natl Lab, Berkeley, CA USA.
[Jimenez, Rome] Univ Concepcion, Dept Chem Engn, Concepcion, Chile.
[Weiss, Brian] Exxon Mobil Res & Eng Co, Corp Res Strateg, Annandale, NJ USA.
RP Iglesia, E (reprint author), Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
EM iglesia@berkeley.edu
RI Iglesia, Enrique/D-9551-2017; Hibbitts, David/J-5507-2014
OI Iglesia, Enrique/0000-0003-4109-1001; Hibbitts,
David/0000-0001-8606-7000
FU GM; Red Doctoral REDOC.CTA, MINEDUC Project at Universidad de Concepcion
[UCO1202]; FONDECYT, Chile [1101005]
FX Financial support from GM and technical discussions with Dr. Wei Li (GM)
are gratefully acknowledged. Computational resources provided by XSEDE
(CHE130022). RJ acknowledges financial support from Red Doctoral
REDOC.CTA, MINEDUC Project UCO1202 at Universidad de Concepcion and
FONDECYT Grant 1101005, Chile, during sabbatical research at UC
Berkeley.
NR 50
TC 3
Z9 3
U1 5
U2 62
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9517
EI 1090-2694
J9 J CATAL
JI J. Catal.
PD NOV
PY 2014
VL 319
BP 95
EP 109
DI 10.1016/j.jcat.2014.07.012
PG 15
WC Chemistry, Physical; Engineering, Chemical
SC Chemistry; Engineering
GA AS7LK
UT WOS:000344437400010
ER
PT J
AU Gonzalez-Dominguez, J
Marques, OA
Martin, MJ
Tourino, J
AF Gonzalez-Dominguez, Jorge
Marques, Osni A.
Martin, Maria J.
Tourino, Juan
TI A 2D algorithm with asymmetric workload for the UPC conjugate gradient
method
SO JOURNAL OF SUPERCOMPUTING
LA English
DT Article
DE Conjugate gradient; PGAS; UPC; Performance optimization; Data
distribution
ID NAS PARALLEL BENCHMARKS
AB This paper examines four different strategies, each one with its own data distribution, for implementing the parallel conjugate gradient (CG) method and how they impact communication and overall performance. Firstly, typical 1D and 2D distributions of the matrix involved in CG computations are considered. Then, a new 2D version of the CG method with asymmetric workload, based on leaving some threads idle during part of the computation to reduce communication, is proposed. The four strategies are independent of sparse storage schemes and are implemented using Unified Parallel C (UPC), a Partitioned Global Address Space (PGAS) language. The strategies are evaluated on two different platforms through a set of matrices that exhibit distinct sparse patterns, demonstrating that our asymmetric proposal outperforms the others except for one matrix on one platform.
C1 [Gonzalez-Dominguez, Jorge] Johannes Gutenberg Univ Mainz, Parallel & Distributed Architectures Grp, D-55122 Mainz, Germany.
[Marques, Osni A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
[Martin, Maria J.; Tourino, Juan] Univ A Coruna, Comp Architecture Grp, La Coruna, Spain.
RP Gonzalez-Dominguez, J (reprint author), Johannes Gutenberg Univ Mainz, Parallel & Distributed Architectures Grp, D-55122 Mainz, Germany.
EM j.gonzalez@uni-mainz.de; OAMarques@lbl.gov; mariam@udc.es; juan@udc.es
RI Martin, Maria/M-5167-2015; Gonzalez-Dominguez, Jorge/H-7371-2016
OI Martin, Maria/0000-0002-9153-0909; Gonzalez-Dominguez,
Jorge/0000-0002-2602-4874
FU Ministry of Economy and Competitiveness of Spain [TIN2013-42148-P];
FEDER funds of the EU [TIN2013-42148-P]; Galician Government
(Consolidation Program of Competitive Reference Groups) [GRC2013/055];
U.S. Department of Energy [DE-AC03-76SF00098]
FX This work was funded by the Ministry of Economy and Competitiveness of
Spain and FEDER funds of the EU (Project TIN2013-42148-P), by the
Galician Government (Consolidation Program of Competitive Reference
Groups GRC2013/055) and by the U.S. Department of Energy (Contract No.
DE-AC03-76SF00098).
NR 22
TC 0
Z9 0
U1 0
U2 1
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0920-8542
EI 1573-0484
J9 J SUPERCOMPUT
JI J. Supercomput.
PD NOV
PY 2014
VL 70
IS 2
BP 816
EP 829
DI 10.1007/s11227-014-1300-0
PG 14
WC Computer Science, Hardware & Architecture; Computer Science, Theory &
Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA AS9GY
UT WOS:000344552400026
ER
PT J
AU Farina, EK
Austin, KG
Lieberman, HR
AF Farina, Emily K.
Austin, Krista G.
Lieberman, Harris R.
TI Concomitant Dietary Supplement and Prescription Medication Use Is
Prevalent among US Adults with Doctor-Informed Medical Conditions
SO JOURNAL OF THE ACADEMY OF NUTRITION AND DIETETICS
LA English
DT Article
DE Dietary supplements; Prescription medications; Interactions; Chronic
disease; Medical conditions
ID ALTERNATIVE MEDICINE; UNITED-STATES; PRIMARY-CARE; DRUG-INTERACTIONS;
OLDER-ADULTS; COMPLEMENTARY
AB Information on patterns of concomitant dietary supplement (DS) and prescription medication (PM) use among US adults is limited. Thus, the prevalence of concomitant DS and PM use as a function of doctor-informed medical conditions (DIMC) was determined in a cross-sectional, observational study of a nationally representative sample of noninstitutionalized, civilian adults aged >= 20 years in the United States (N=9,950) from the 2005-2008 National Health and Nutrition Examination Survey (NHANES). Data were weighted for the complex, multistage, probability sampling design. Approximately one third (34.3%) of all US adults reported concomitant DS and PM use (approximately one in three adults). The prevalence of use was significantly higher among those with vs without a DIMC (47.3% vs 17.3%). Adults with a DIMC were more than two and a half times more likely to concomitantly use DS and PM than adults without a DIMC, after adjustment for sex, age, education, and household income. Multivitamin plus other ingredient(s), followed by antacids and multivitamin plus botanical ingredient(s), were the most prevalent DS categories used with a PM among those with and without a DIMC. The most prevalent PM categories used with a DS were cardiovascular agents (among those with a DIMC) and hormones (among those without a DIMC). These findings demonstrate that presence of a DIMC may be a risk factor for concomitant DS and PM use among US adults. Multivitamins containing nonvitamin or mineral ingredients are more commonly used than standard multivitamins with PM by US adults. This may be an emerging trend that warrants further consideration.
C1 [Farina, Emily K.; Austin, Krista G.] Oak Ridge Associated Univ, Oak Ridge Inst Sci & Educ, Belcamp, MD USA.
[Farina, Emily K.; Austin, Krista G.; Lieberman, Harris R.] US Army, Environm Med Res Inst, Mil Nutr Div, Natick, MA 01760 USA.
RP Farina, EK (reprint author), US Army, Environm Med Res Inst, Bldg 42,Kansas St, Natick, MA 01760 USA.
EM emily.k.farina.ctr@mail.mil
FU US Army Medical Research and Material Command (USAMRMC); Department of
Defense Center Alliance for Dietary Supplement Research
FX This work was supported by the US Army Medical Research and Material
Command (USAMRMC), Department of Defense Center Alliance for Dietary
Supplement Research, and an appointment to the Postgraduate Research
Participation Program administered by the Oak Ridge Institute for
Science and Education through an interagency agreement between the US
Department of Energy and USAMRMC. The opinions or assertions contained
herein are the private views of the author and are not to be construed
as official or as reflecting the views of the Army or the Department of
Defense. Human subjects participated after giving their free and
informed voluntary consent. The investigators adhered to the policies
for protection of human subjects as prescribed in Army Regulation 70-25,
and the research was conducted in adherence with the provisions of 32
CFR Part 219. Citations of commercial organizations and trade names in
this report do not constitute an official Department of the Army
endorsement or approval of the products or services of these
organizations. Approved for public release.
NR 29
TC 10
Z9 10
U1 2
U2 7
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 2212-2672
EI 2212-2680
J9 J ACAD NUTR DIET
JI J. Acad. Nutr. Diet.
PD NOV
PY 2014
VL 114
IS 11
BP 1784
EP +
DI 10.1016/j.jand.2014.01.016
PG 9
WC Nutrition & Dietetics
SC Nutrition & Dietetics
GA AS8CE
UT WOS:000344477100012
PM 24703929
ER
PT J
AU Marjanovic, N
Wharton, S
Chow, FK
AF Marjanovic, Nikola
Wharton, Sonia
Chow, Fotini K.
TI Investigation of model parameters for high-resolution wind energy
forecasting: Case studies over simple and complex terrain
SO JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
LA English
DT Article
DE High-resolution simulations; Terrain complexity; Ramping event; Wind
energy forecasts
ID ATMOSPHERIC BOUNDARY-LAYER; NUMERICAL SIMULATIONS; VERTICAL DIFFUSION;
WEATHER RESEARCH; WRF MODEL; PART I; TURBULENCE; VALLEY; TEMPERATURE;
SENSITIVITY
AB Wind power forecasting, turbine micrositing, and turbine design require high-resolution simulations of atmospheric flow. Case studies at two West Coast North American wind farms, one with simple and one with complex terrain, are explored using the Weather Research and Forecasting (WRF) model. Both synoptically and locally driven events that include some ramping are considered. The performance of the model with different grid nesting configurations, turbulence closures, and grid resolutions is investigated through comparisons with observation data. For the simple terrain site, no significant improvement in the simulation results is found when using higher resolution. In contrast, for the complex terrain site, there is significant improvement when using higher resolution, but only during the locally driven event. This suggests the possibility that computational resources could be spared under certain conditions, for example when the topography is adequately resolved at coarser resolutions. Physical parameters such as soil moisture have a very large effect, but mostly for the locally forced events for both simple and complex terrain. The effect of the PBL scheme choice varies significantly depending on the meteorological forcing and terrain. On average, prognostic TKE equation schemes perform better than non-local eddy viscosity schemes. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Marjanovic, Nikola; Chow, Fotini K.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
[Marjanovic, Nikola; Wharton, Sonia] Lawrence Livermore Natl Lab, Atmospher Earth & Energy Div, Livermore, CA 94551 USA.
RP Marjanovic, N (reprint author), Univ Calif Berkeley, Dept Civil & Environm Engn, MC 1710, Berkeley, CA 94720 USA.
EM nikola_marjanovic@berkeley.edu
FU Department of Energy's Wind and Water Power Program Office [EB2502010];
DOE, National Nuclear Security Administration [DE-AC52-07NA27344]
FX The authors express great appreciation to Iberdrola Renewables, Inc. for
the collection, provision, and insightful discussion of the wind farm
datasets. The authors also thank Julie Lundquist for initiating this
project. This work is funded by the Department of Energy's Wind and
Water Power Program Office under the Renewable Systems Interconnect
Support program (BNR Code EB2502010) and the Lawrence Scholar Program.
LLNL is operated by Lawrence Livermore National Security, LLC, for the
DOE, National Nuclear Security Administration under Contract
DE-AC52-07NA27344. IM release number: LLNL-JRNL-611332.
NR 39
TC 6
Z9 6
U1 1
U2 23
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-6105
EI 1872-8197
J9 J WIND ENG IND AEROD
JI J. Wind Eng. Ind. Aerodyn.
PD NOV
PY 2014
VL 134
BP 10
EP 24
DI 10.1016/j.jweia.2014.08.007
PG 15
WC Engineering, Civil; Mechanics
SC Engineering; Mechanics
GA AS7LS
UT WOS:000344438200002
ER
PT J
AU Kebukawa, Y
Zolensky, ME
Kilcoyne, ALD
Rahman, Z
Jenniskens, P
Cody, GD
AF Kebukawa, Yoko
Zolensky, Michael E.
Kilcoyne, A. L. David
Rahman, Zia
Jenniskens, Peter
Cody, George D.
TI Diamond xenolith and matrix organic matter in the Sutter's Mill
meteorite measured by C-XANES
SO METEORITICS & PLANETARY SCIENCE
LA English
DT Article
ID RAY-ABSORPTION SPECTROSCOPY; INTERSTELLAR DIAMONDS; CHONDRITE; CARBON;
FILMS; EXCITATION; RESOLUTION; POLYMERS; ORIGIN; PLASMA
AB The Sutter's Mill (SM) meteorite fell in El Dorado County, California, on April 22, 2012. This meteorite is a regolith breccia composed of CM chondrite material and at least one xenolithic phase: oldhamite. The meteorite studied here, SM2 (subsample 5), was one of three meteorites collected before it rained extensively on the debris site, thus preserving the original asteroid regolith mineralogy. Two relatively large (10 mu m sized) possible diamond grains were observed in SM2-5 surrounded by fine-grained matrix. In the present work, we analyzed a focused ion beam (FIB) milled thin section that transected a region containing these two potential diamond grains as well as the surrounding fine-grained matrix employing carbon and nitrogen X-ray absorption near-edge structure (C-XANES and N-XANES) spectroscopy using a scanning transmission X-ray microscope (STXM) (Beamline 5.3.2 at the Advanced Light Source, Lawrence Berkeley National Laboratory). The STXM analysis revealed that the matrix of SM2-5 contains C-rich grains, possibly organic nanoglobules. A single carbonate grain was also detected. The C-XANES spectrum of the matrix is similar to that of insoluble organic matter (IOM) found in other CM chondrites. However, no significant nitrogen-bearing functional groups were observed with N-XANES. One of the possible diamond grains contains a Ca-bearing inclusion that is not carbonate. C-XANES features of the diamond-edges suggest that the diamond might have formed by the CVD process, or in a high-temperature and -pressure environment in the interior of a much larger parent body.
C1 [Kebukawa, Yoko; Cody, George D.] Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA.
[Kebukawa, Yoko] Hokkaido Univ, Dept Nat Hist Sci, Sapporo, Hokkaido 0600810, Japan.
[Zolensky, Michael E.] NASA, Johnson Space Ctr, Houston, TX 77058 USA.
[Kilcoyne, A. L. David] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Rahman, Zia] Jacobs Sverdrup, Houston, TX 77058 USA.
[Jenniskens, Peter] SETI Inst, Mountain View, CA 94043 USA.
[Jenniskens, Peter] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.
RP Kebukawa, Y (reprint author), Yokohama Natl Univ, Fac Engn, Yokohama, Kanagawa 2408501, Japan.
EM kebukawa@ynu.ac.jp
RI Kilcoyne, David/I-1465-2013
FU Office of Science, Department of Energy [DE-AC02-05CH11231]; NASA; JSPS;
NASA Ames Research Center
FX We thank George Flynn, Monica Grady, Hikaru Yabuta, and the Associate
Editor Christine Floss for their careful reviews and constructive
comments. STXM-XANES data were acquired at beamline 5.3.2.2 at the ALS,
which is supported by the Director of the Office of Science, Department
of Energy, under Contract No. DE-AC02-05CH11231. We gratefully
acknowledge support from NASA Astrobiology and Origins of the Solar
System Programs. Y. K. gratefully acknowledges support through the JSPS
Postdoctoral Fellowships. The Sutter's Mill recovery was supported by
NASA Ames Research Center.
NR 41
TC 2
Z9 2
U1 2
U2 7
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1086-9379
EI 1945-5100
J9 METEORIT PLANET SCI
JI Meteorit. Planet. Sci.
PD NOV
PY 2014
VL 49
IS 11
BP 2095
EP 2103
DI 10.1111/maps.12312
PG 9
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA AT1ZZ
UT WOS:000344731500012
ER
PT J
AU Kim, HS
Willett, JW
Jain-Gupta, N
Fiebig, A
Crosson, S
AF Kim, Hye-Sook
Willett, Jonathan W.
Jain-Gupta, Neeta
Fiebig, Aretha
Crosson, Sean
TI The Brucella abortus virulence regulator, LovhK, is a sensor kinase in
the general stress response signalling pathway
SO MOLECULAR MICROBIOLOGY
LA English
DT Article
ID SIGMA-FACTOR MIMICRY; BLUE-LIGHT; BACILLUS-SUBTILIS; TRANSDUCTION
PATHWAYS; 2-COMPONENT SYSTEM; HISTIDINE KINASE; CAULOBACTER-CRESCENTUS;
STRUCTURAL BASIS; PROTEIN; PHYR
AB In the intracellular pathogen Brucella abortus, the general stress response (GSR) signalling system determines survival under acute stress conditions in vitro, and is required for long-term residence in a mammalian host. To date, the identity of the Brucella sensor kinase(s) that function to perceive stress and directly activate GSR signalling have remained undefined. We demonstrate that the flavin-binding sensor histidine kinase, LovhK (bab2_0652), functions as a primary B. abortusGSR sensor. LovhK rapidly and specifically phosphorylates the central GSR regulator, PhyR, and activates transcription of a set of genes that closely overlaps the known B. abortusGSR regulon. Deletion of lovhK severely compromises cell survival under defined oxidative and acid stress conditions. We further show that lovhK is required for cell survival during the early phase of mammalian cell infection and for establishment of long-term residence in a mouse infection model. Finally, we present evidence that particular regions of primary structure within the two N-terminal PAS domains of LovhK have distinct sensory roles under specific environmental conditions. This study elucidates new molecular components of a conserved signalling pathway that regulates B. abortus stress physiology and infection biology.
C1 [Kim, Hye-Sook; Willett, Jonathan W.; Jain-Gupta, Neeta; Fiebig, Aretha; Crosson, Sean] Univ Chicago, Dept Biochem & Mol Biol, Chicago, IL 60637 USA.
[Crosson, Sean] Univ Chicago, Comm Microbiol, Chicago, IL 60637 USA.
[Kim, Hye-Sook; Willett, Jonathan W.; Jain-Gupta, Neeta; Crosson, Sean] Univ Chicago, Argonne Natl Lab, Howard Taylor Ricketts Lab, Chicago, IL 60637 USA.
RP Crosson, S (reprint author), Univ Chicago, Dept Biochem & Mol Biol, 920 E 58Th St, Chicago, IL 60637 USA.
EM scrosson@uchicago.edu
OI Willett, Jonathan/0000-0002-5467-4145
FU National Institute of Allergy and Infectious Diseases (NIAID), National
Institutes of Health (NIH) [U19AI107792, R01AI107159]; NIH [F32GM109661]
FX We thank members of the Crosson Lab for discussions and guidance for
this study. Robert Foreman generated plasmids to produce B. abortus
Delta rpoE1, Delta rpoH1, and Delta dps mutant strains. This project has
been funded in whole or in part with Federal funds from the National
Institute of Allergy and Infectious Diseases (NIAID), National
Institutes of Health (NIH), Grant No. U19AI107792 and R01AI107159 to
S.C. J.W.W. is supported by a NIH Ruth Kirschstein Postdoctoral
fellowship (F32GM109661). The authors of this study have no conflict of
interest to declare.
NR 48
TC 14
Z9 14
U1 0
U2 5
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0950-382X
EI 1365-2958
J9 MOL MICROBIOL
JI Mol. Microbiol.
PD NOV
PY 2014
VL 94
IS 4
BP 913
EP 925
DI 10.1111/mmi.12809
PG 13
WC Biochemistry & Molecular Biology; Microbiology
SC Biochemistry & Molecular Biology; Microbiology
GA AT3YO
UT WOS:000344871800015
PM 25257300
ER
PT J
AU Stolley, RM
Helm, ML
AF Stolley, Ryan M.
Helm, Monte L.
TI LIGHT-HARVESTING MATERIALS Soft support for energy conversion
SO NATURE CHEMISTRY
LA English
DT News Item
C1 [Stolley, Ryan M.; Helm, Monte L.] Pacific NW Natl Lab, Ctr Mol Electroanal, Div Phys Sci, Richland, WA 99352 USA.
RP Stolley, RM (reprint author), Pacific NW Natl Lab, Ctr Mol Electroanal, Div Phys Sci, POB 999,K2-57, Richland, WA 99352 USA.
EM Monte.Helm@pnnl.gov
OI Helm, Monte/0000-0003-4728-8833
NR 4
TC 3
Z9 3
U1 2
U2 23
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1755-4330
EI 1755-4349
J9 NAT CHEM
JI Nat. Chem.
PD NOV
PY 2014
VL 6
IS 11
BP 949
EP 950
DI 10.1038/nchem.2088
PG 2
WC Chemistry, Multidisciplinary
SC Chemistry
GA AS8BS
UT WOS:000344476000002
PM 25343594
ER
PT J
AU Robertson, GP
Grace, PR
Izaurralde, RC
Parton, WP
Zhang, XS
AF Robertson, G. Philip
Grace, Peter R.
Izaurralde, R. Cesar
Parton, William P.
Zhang, Xuesong
TI CO2 emissions from crop residue-derived biofuels
SO NATURE CLIMATE CHANGE
LA English
DT Letter
ID SOIL ORGANIC-CARBON; MODEL
C1 [Robertson, G. Philip] Michigan State Univ, Dept Plant Soil & Microbial Sci, Hickory Corners, MI 49060 USA.
[Robertson, G. Philip] Michigan State Univ, WK Kellogg Biol Stn, Hickory Corners, MI 49060 USA.
[Robertson, G. Philip; Izaurralde, R. Cesar; Zhang, Xuesong] Michigan State Univ, Great Lakes Bioenergy Res Ctr, E Lansing, MI 48824 USA.
[Grace, Peter R.] Queensland Univ Technol, Inst Future Environm, Brisbane, Qld 4000, Australia.
[Izaurralde, R. Cesar] Univ Maryland, Dept Geog Sci, College Pk, MD 20740 USA.
[Izaurralde, R. Cesar] Texas A&M Univ, Texas AgriLife Res, Temple, TX 76502 USA.
[Parton, William P.] Colorado State Univ, Nat Resource Ecol Lab, Ft Collins, CO 80521 USA.
[Zhang, Xuesong] Univ Maryland, Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
RP Robertson, GP (reprint author), Michigan State Univ, Dept Plant Soil & Microbial Sci, Hickory Corners, MI 49060 USA.
EM robert30@msu.edu
RI zhang, xuesong/B-7907-2009;
OI Robertson, G/0000-0001-9771-9895
NR 9
TC 1
Z9 1
U1 4
U2 19
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1758-678X
EI 1758-6798
J9 NAT CLIM CHANGE
JI Nat. Clim. Chang.
PD NOV
PY 2014
VL 4
IS 11
BP 933
EP 934
PG 3
WC Environmental Sciences; Environmental Studies; Meteorology & Atmospheric
Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA AT0AD
UT WOS:000344598400004
ER
PT J
AU Durack, PJ
Gleckler, PJ
Landerer, FW
Taylor, KE
AF Durack, Paul J.
Gleckler, Peter J.
Landerer, Felix W.
Taylor, Karl E.
TI Quantifying underestimates of long-term upper-ocean warming
SO NATURE CLIMATE CHANGE
LA English
DT Article
ID SEA-LEVEL RISE; BUDGET; TRENDS
AB The global ocean stores more than 90% of the heat associated with observed greenhouse-gas-attributed global warming(1-4). Using satellite altimetry observations and a large suite of climate models, we conclude that observed estimates of 0-700 dbar global ocean warming since 1970 are likely biased low. This underestimation is attributed to poor sampling of the Southern Hemisphere, and limitations of the analysis methods that conservatively estimate temperature changes in data-sparse regions(5-7). We find that the partitioning of northern and southern hemispheric simulated sea surface height changes are consistent with precise altimeter observations, whereas the hemispheric partitioning of simulated upper-ocean warming is inconsistent with observed in-situ-based ocean heat content estimates. Relying on the close correspondence between hemispheric-scale ocean heat content and steric changes, we adjust the poorly constrained Southern Hemisphere observed warming estimates so that hemispheric ratios are consistent with the broad range of modelled results. These adjustments yield large increases (2.2-7.1 x 10(22) J 35 yr(-1)) to current global upper-ocean heat content change estimates, and have important implications for sea level, the planetary energy budget and climate sensitivity assessments.
C1 [Durack, Paul J.; Gleckler, Peter J.; Taylor, Karl E.] Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA 94550 USA.
[Landerer, Felix W.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
RP Durack, PJ (reprint author), Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA 94550 USA.
EM pauldurack@llnl.gov
RI Taylor, Karl/F-7290-2011; Durack, Paul/A-8758-2010;
OI Taylor, Karl/0000-0002-6491-2135; Durack, Paul/0000-0003-2835-1438;
Landerer, Felix/0000-0003-2678-095X
FU US Department of Energy, Office of Science, Climate and Environmental
Sciences Division, Regional and Global Climate Modeling Program
[DE-AC52-07NA27344]; NASA ROSES Physical Oceanography [NNN13D462T]; NASA
Sea Level Change Team (NSLCT)
FX The work of P.J.D., P.J.G. and K.E.T. from Lawrence Livermore National
Laboratory is a contribution to the US Department of Energy, Office of
Science, Climate and Environmental Sciences Division, Regional and
Global Climate Modeling Program under contract DE-AC52-07NA27344. The
work of F.W.L. was performed at the Jet Propulsion Laboratory,
California Institute of Technology and is supported by NASA ROSES
Physical Oceanography grant NNN13D462T and the NASA Sea Level Change
Team (NSLCT). We thank numerous colleagues from the Program for Climate
Model Diagnosis and Intercomparison (PCMDI) for valuable feedback and
input into this project. We also thank J. Durack of the University of
California, San Francisco (USA), M. V. Durack of educAID (Australia), T.
P. Boyer from the National Oceanographic Data Center, Silver Spring
(USA), C. M. Domingues from the Antarctic Climate and Ecosystems CRC,
Hobart (Australia) and J. A. Church from the Centre for Australian
Weather and Climate Research, Hobart (Australia). We acknowledge the
sources of observed data used in this study: D. Smith and J. Murphy
(Smi07), C. M. Domingues (Dom08), M. Ishii and M. Kimoto (Ish09), S.
Levitus and T. Boyer (Lev12) and the International Argo Program and the
national programs that contribute to it. We acknowledge the World
Climate Research Programmes Working Group on Coupled Modelling, which is
responsible for CMIP, and we thank the climate modelling groups (listed
in Supplementary Tables 1 and 2) for producing and making available
their model output. For CMIP the US Department of Energys Program for
Climate Model Diagnosis and Intercomparison provides coordinating
support and led development of software infrastructure in partnership
with the Global Organization for Earth System Science Portals. The DW10
data presented in this study can be downloaded from the CSIRO Ocean
Change website at www.cmar.csiro.au/oceanchange. LLNL Release #:
LLNL-JRNL-651841.
NR 30
TC 35
Z9 37
U1 2
U2 34
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1758-678X
EI 1758-6798
J9 NAT CLIM CHANGE
JI Nat. Clim. Chang.
PD NOV
PY 2014
VL 4
IS 11
BP 999
EP 1005
DI 10.1038/NCLIMATE2389
PG 7
WC Environmental Sciences; Environmental Studies; Meteorology & Atmospheric
Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA AT0AD
UT WOS:000344598400024
ER
PT J
AU Kapnick, SB
Delworth, TL
Ashfaq, M
Malyshev, S
Milly, PCD
AF Kapnick, Sarah B.
Delworth, Thomas L.
Ashfaq, Moetasim
Malyshev, Sergey
Milly, P. C. D.
TI Snowfall less sensitive to warming in Karakoram than in Himalayas due to
a unique seasonal cycle
SO NATURE GEOSCIENCE
LA English
DT Article
ID CLIMATE-CHANGE; HYDROLOGICAL CYCLE; WATER-RESOURCES; HINDU-KUSH;
PRECIPITATION; GLACIERS; 20TH-CENTURY; SIMULATION; SCENARIOS; MONSOON
AB The high mountains of Asia, including the Karakoram, Himalayas and Tibetan Plateau, combine to form a region of perplexing hydroclimate changes. Glaciers have exhibited mass stability or even expansion in the Karakoram region(1-3), contrasting with glacial mass loss across the nearby Himalayas and Tibetan Plateau(1,4), a pattern that has been termed the Karakoram anomaly. However, the remote location, complex terrain and multi-country fabric of high-mountain Asia have made it difficult to maintain longer-term monitoring systems of the meteorological components that may have influenced glacial change. Here we compare a set of high-resolution climate model simulations from 1861 to 2100 with the latest available observations to focus on the distinct seasonal cycles and resulting climate change signatures of Asia's high-mountain ranges. We find that the Karakoram seasonal cycle is dominated by non-monsoonal winter precipitation, which uniquely protects it from reductions in annual snowfall under climate warming over the twenty-first century. The simulations show that climate change signals are detectable only with long and continuous records, and at specific elevations. Our findings suggest a meteorological mechanism for regional differences in the glacier response to climate warming.
C1 [Kapnick, Sarah B.] Princeton Univ, Program Atmospher & Ocean Sci, Princeton, NJ 08540 USA.
[Kapnick, Sarah B.; Delworth, Thomas L.; Milly, P. C. D.] NOAA, Geophys Fluid Dynam Lab, Princeton, NJ 08540 USA.
[Ashfaq, Moetasim] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Malyshev, Sergey] Princeton Univ, Dept Ecol & Evolutionary Biol, Princeton, NJ 08540 USA.
[Milly, P. C. D.] US Geol Survey, Princeton, NJ 08540 USA.
RP Kapnick, SB (reprint author), Princeton Univ, Program Atmospher & Ocean Sci, Princeton, NJ 08540 USA.
EM skapnick@princeton.edu
RI Kapnick, Sarah/C-5209-2014; Delworth, Thomas/C-5191-2014
OI Kapnick, Sarah/0000-0003-0979-3070;
NR 39
TC 27
Z9 27
U1 4
U2 34
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 1752-0894
EI 1752-0908
J9 NAT GEOSCI
JI Nat. Geosci.
PD NOV
PY 2014
VL 7
IS 11
BP 834
EP 840
DI 10.1038/NGEO2269
PG 7
WC Geosciences, Multidisciplinary
SC Geology
GA AT3CC
UT WOS:000344812100018
ER
PT J
AU Kim, YM
Morozovska, A
Eliseev, E
Oxley, MP
Mishra, R
Selbach, SM
Grande, T
Pantelides, ST
Kalinin, SV
Borisevich, AY
AF Kim, Young-Min
Morozovska, Anna
Eliseev, Eugene
Oxley, Mark P.
Mishra, Rohan
Selbach, Sverre M.
Grande, Tor
Pantelides, S. T.
Kalinin, Sergei V.
Borisevich, Albina Y.
TI Direct observation of ferroelectric field effect and vacancy-controlled
screening at the BiFeO3/LaxSr1-xMnO3 interface
SO NATURE MATERIALS
LA English
DT Article
ID BIFEO3 FILMS; OXIDES; HETEROSTRUCTURES; EELS; POLARIZATION;
SPECTROSCOPY; DOMAINS; FUTURE; STATES; SCALE
AB The development of interface-based magnetoelectric devices necessitates an understanding of polarization-mediated electronic phenomena and atomistic polarization screening mechanisms. In this work, the LSMO/BFO interface is studied on a single unit-cell level through a combination of direct order parameter mapping by scanning transmission electron microscopy and electron energy-loss spectroscopy. We demonstrate an unexpected similar to 5% lattice expansion for regions with negative polarization charge, with a concurrent anomalous decrease of the Mn valence and change in oxygen K-edge intensity. We interpret this behaviour as direct evidence for screening by oxygen vacancies. The vacancies are predominantly accumulated at the second atomic layer of BFO, reflecting the difference of ionic conductivity between the components. This vacancy exclusion from the interface leads to the formation of a tail-to-tail domain wall. At the same time, purely electronic screening is realized for positive polarization charge, with insignificant changes in lattice and electronic properties. These results underline the non-trivial role of electrochemical phenomena in determining the functional properties of oxide interfaces. Furthermore, these behaviours suggest that vacancy dynamics and exclusion play major roles in determining interface functionality in oxide multilayers, providing clear implications for novel functionalities in potential electronic devices.
C1 [Kim, Young-Min; Oxley, Mark P.; Mishra, Rohan; Pantelides, S. T.; Borisevich, Albina Y.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Kim, Young-Min] Korea Basic Sci Inst, Div Electron Microscop Res, Taejon 305333, South Korea.
[Morozovska, Anna] Natl Acad Sci, Inst Phys, UA-03028 Kiev, Ukraine.
[Eliseev, Eugene] Natl Acad Sci, Inst Problems Mat Sci, UA-03142 Kiev, Ukraine.
[Oxley, Mark P.; Mishra, Rohan; Pantelides, S. T.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA.
[Selbach, Sverre M.; Grande, Tor] Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, NO-7491 Trondheim, Norway.
[Kalinin, Sergei V.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Kim, YM (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
EM albinab@ornl.gov
RI Borisevich, Albina/B-1624-2009; Mishra, Rohan/J-9127-2013; Grande,
Tor/K-4125-2015; Selbach, Sverre/D-5680-2014; Kalinin,
Sergei/I-9096-2012; Kim, Young-Min/B-7338-2012
OI Borisevich, Albina/0000-0002-3953-8460; Mishra,
Rohan/0000-0003-1261-0087; Kalinin, Sergei/0000-0001-5354-6152; Kim,
Young-Min/0000-0003-3220-9004
FU Materials Science and Engineering Division, Office of Basic Energy
Sciences of the US DOE; Oak Ridge National Laboratory's Center for
Nanophase Materials Sciences - Scientific User Facilities Division,
Office of Basic Energy Sciences, US Department of Energy; DOE
[DE-FG02-09ER46554]; bilateral SFFR-NSF project, namely US National
Science Foundation [NSF-DMR-1210588]; State Fund of Fundamental Research
of Ukraine [UU48/002]; Office of Science of the US Department of Energy
[DE-AC02-05CH11231]
FX The work is supported in part (A.Y.B., Y-M.K., S. V. K., R. M. and S. T.
P.) by the Materials Science and Engineering Division, Office of Basic
Energy Sciences of the US DOE and through a user project supported by
Oak Ridge National Laboratory's Center for Nanophase Materials Sciences,
which is sponsored at Oak Ridge National Laboratory by the Scientific
User Facilities Division, Office of Basic Energy Sciences, US Department
of Energy. M.P.O. acknowledges support from DOE grant DE-FG02-09ER46554.
The authors thank P. Yu (Tsinghua University, Beijing, China), Y-H. Chu
(National Chiao Tung University, Hsinchu, Taiwan) and R. Ramesh
(University of California Berkeley) for providing BiFeO3
films for the study. A. M. and E. E. acknowledge support via a bilateral
SFFR-NSF project, namely US National Science Foundation under
NSF-DMR-1210588 and State Fund of Fundamental Research of Ukraine, grant
UU48/002. This research used resources of the National Energy Research
Scientific Computing Center, which is supported by the Office of Science
of the US Department of Energy under Contract No. DE-AC02-05CH11231.
NR 60
TC 46
Z9 46
U1 19
U2 243
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1476-1122
EI 1476-4660
J9 NAT MATER
JI Nat. Mater.
PD NOV
PY 2014
VL 13
IS 11
BP 1019
EP 1025
DI 10.1038/NMAT4058
PG 7
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Applied; Physics, Condensed Matter
SC Chemistry; Materials Science; Physics
GA AS8AC
UT WOS:000344471900008
PM 25129618
ER
PT J
AU Tochigi, E
Zepeda-alarcon, E
Wenk, HR
Minor, AM
AF Tochigi, E.
Zepeda-alarcon, E.
Wenk, H. -R.
Minor, A. M.
TI In situ TEM observations of plastic deformation in quartz crystals
SO PHYSICS AND CHEMISTRY OF MINERALS
LA English
DT Article
DE Quartz; Dauphine twinning; Dislocations; Amorphization; In situ
compression; Transmission electron microscopy
ID ROOM-TEMPERATURE; POLYCRYSTALLINE QUARTZ; THERMAL-DIFFUSIVITY; TEXTURE
MEMORY; SILICON; TRANSITION; NANOINDENTATION; COMPRESSION; DIFFRACTION;
MICROSCOPY
AB With in situ nanocompression experiments in a transmission electron microscope, we investigated plastic deformation in natural quartz crystals and observed both dislocation plasticity as well as mechanical twinning. Through this experimental method, we are able to provide direct evidence of Dauphin, twin nucleation and could measure the intrinsic twinning stress. The twinning phenomena appear to include a memory effect, where the same twin can reappear upon successive loading and unloading events. The data provide insight into this twin generation mechanism and can be used as a benchmark for the use of twins in quartz for paleopiezometry. Together, the observation of room-temperature dislocation plasticity and reversible twinning adds new insight into the extensive field of quartz plasticity and demonstrates the usefulness of small-scale testing techniques for mineral physics.
C1 [Tochigi, E.; Minor, A. M.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Tochigi, E.; Minor, A. M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
[Zepeda-alarcon, E.; Wenk, H. -R.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
RP Minor, AM (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
EM wenk@berkeley.edu; aminor@berkeley.edu
RI Foundry, Molecular/G-9968-2014
NR 46
TC 1
Z9 1
U1 3
U2 37
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0342-1791
EI 1432-2021
J9 PHYS CHEM MINER
JI Phys. Chem. Miner.
PD NOV
PY 2014
VL 41
IS 10
BP 757
EP 765
DI 10.1007/s00269-014-0689-6
PG 9
WC Materials Science, Multidisciplinary; Mineralogy
SC Materials Science; Mineralogy
GA AT0RU
UT WOS:000344643500003
ER
PT J
AU Zavarin, M
Zhao, PH
Dai, ZR
Kersting, AB
AF Zavarin, Mavrik
Zhao, Pihong
Dai, Zurong
Kersting, Annie B.
TI Plutonium sorption and precipitation in the presence of goethite at 25
and 80 degrees C
SO RADIOCHIMICA ACTA
LA English
DT Article
DE Plutonium; Goethite; Sorption; Precipitation
ID PU(IV) HYDROUS OXIDE; NEPTUNIUM(V) SORPTION; GROUNDWATER; SOLUBILITY;
ADSORPTION; TRANSPORT; SYSTEM; ENVIRONMENT; SPECIATION; REDUCTION
AB We have examined the sorption of aqueous Pu(IV) and intrinsic Pu colloids to goethite across a Pu concentration range that spans the solubility of Pu(IV) hydrous oxide, at 25 and 80 degrees C, and after equilibration for over 100 days. The strong affinity of aqueous Pu(IV) for the goethite surface is explained by the epitaxial growth of bcc Pu O-4(7) nano-particles on goethite. The 3-5 nm Pu O-4(7) nano-particles are strictly associated with goethite, widely dispersed across the goethite surface, and stable over the timescale of months at both 25 and 80 degrees C. There is no indication that the sorbed Pu O-4(7) nano-particles alter to PuO2 over time. Intrinsic Pu colloids were identified by TEM as 3-5 nmPuO(2) nano-particles. They exhibit a weaker association with the goethite surface. Aggregation of PuO2 nano-particles was observed. There is no indication that the PuO2 nano-particles, once formed, will alter to Pu O-4(7) on goethite. Based on supernatant Pu concentrations, PuO2 nano-particle aggregation behavior is consistent with Pu(IV) hydrous oxide precipitation.
C1 [Zavarin, Mavrik; Zhao, Pihong; Dai, Zurong; Kersting, Annie B.] Inst & Phys & Life Sci Directorate, Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Zavarin, M (reprint author), Inst & Phys & Life Sci Directorate, Lawrence Livermore Natl Lab, 7000 East Ave,L-231, Livermore, CA 94550 USA.
EM zavarin1@llnl.gov
FU Department of Energy, Nuclear Energy Used Fuel Disposition Program;
Subsurface Biogeochemical Research Program of the U.S. Department of
Energy's Office of Biological and Environmental Research; U.S.
Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed with funding from the Department of Energy,
Nuclear Energy Used Fuel Disposition Program and the Subsurface
Biogeochemical Research Program of the U.S. Department of Energy's
Office of Biological and Environmental Research. This work performed
under the auspices of the U.S. Department of Energy by Lawrence
Livermore National Laboratory under Contract DE-AC52-07NA27344.
NR 38
TC 5
Z9 5
U1 3
U2 30
PU WALTER DE GRUYTER GMBH
PI BERLIN
PA GENTHINER STRASSE 13, D-10785 BERLIN, GERMANY
SN 0033-8230
J9 RADIOCHIM ACTA
JI Radiochim. Acta
PD NOV
PY 2014
VL 102
IS 11
BP 983
EP 997
DI 10.1515/ract-2013-2188
PG 15
WC Chemistry, Inorganic & Nuclear; Nuclear Science & Technology
SC Chemistry; Nuclear Science & Technology
GA AT0KM
UT WOS:000344625100004
ER
PT J
AU Lof, M
Bolte, A
Jacobs, DF
Jensen, AM
AF Lof, Magnus
Bolte, Andreas
Jacobs, Douglass F.
Jensen, Anna M.
TI Nurse Trees as a Forest Restoration Tool for Mixed Plantations: Effects
on Competing Vegetation and Performance in Target Tree Species
SO RESTORATION ECOLOGY
LA English
DT Article
DE competition; facilitation; plant-plant interactions; two-story
plantation; vegetation control
ID FRAXINUS-EXCELSIOR; SITE PREPARATION; BETULA-PENDULA; OAK SEEDLINGS;
EARLY GROWTH; TEMPERATE; LIGHT; EUROPE; BIRCH; L.
AB Multi-species mixed plantations can be designed to meet social, economic, and environmental objectives during forest restoration. This paper reports results from an experiment in southern Sweden concerning the influence of three different fast growing nurse tree species on the cover of herbaceous vegetation and on the performance of several target tree species. After 10 years, the nurse trees had reduced the competing herbaceous vegetation but the effect was weak and it may take more than a decade to achieve effective vegetation control. The nurse tree species Betula pendula and Larix x eurolepis did improve stem form in some target tree species, but had a minor effect on survival and growth. The open conditions before crown closure of nurse trees strongly influence seedling performance and so delayed planting of target tree species may provide a means to avoid those conditions. Survival and growth differed greatly among the tree species. Besides the two nurse tree species mentioned above, high survival was found in Picea abies and Quercus robur and intermediate survival in Fagus sylvatica, Tilia cordata, and in the N-fixing nurse tree Alnus glutinosa. Survival was low in the target tree species Fraxinus excelsior L. and Prunus avium. For restoration practitioners, our results illustrate the potential of using nurse trees for rapidly building a new forest structure and simultaneously increase productivity, which might be a cost-effective strategy for forest restoration.
C1 [Lof, Magnus] Swedish Univ Agr Sci, Southern Swedish Forest Res Ctr, SE-23053 Alnarp, Sweden.
[Bolte, Andreas] Johann Heinrich von Thunen Inst TI, Fed Res Inst Rural Areas Forestry & Fisheries, Inst Forest Ecosyst, D-16225 Eberswalde, Germany.
[Jacobs, Douglass F.] Purdue Univ, Dept Forestry & Nat Resources, Hardwood Tree Improvement & Regenerat Ctr, W Lafayette, IN 47907 USA.
[Jensen, Anna M.] Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA.
RP Lof, M (reprint author), Swedish Univ Agr Sci, Southern Swedish Forest Res Ctr, POB 49, SE-23053 Alnarp, Sweden.
EM Magnus.lof@slu.se
RI Bolte, Andreas/A-3521-2009;
OI Jensen, Anna Monrad/0000-0001-5113-5624
FU Nordic Energy Research
FX The study was supported from the research program Enerwoods (Wood based
energy systems from Nordic countries) funded by Nordic Energy Research.
NR 27
TC 6
Z9 6
U1 3
U2 62
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1061-2971
EI 1526-100X
J9 RESTOR ECOL
JI Restor. Ecol.
PD NOV
PY 2014
VL 22
IS 6
BP 758
EP 765
DI 10.1111/rec.12136
PG 8
WC Ecology
SC Environmental Sciences & Ecology
GA AS8DL
UT WOS:000344480300008
ER
PT J
AU Morton, EA
Arrowsmith, SJ
AF Morton, Emily A.
Arrowsmith, Stephen J.
TI The Development of Global Probabilistic Propagation Look-Up Tables for
Infrasound Celerity and Back-Azimuth Deviation
SO SEISMOLOGICAL RESEARCH LETTERS
LA English
DT Article
ID ATMOSPHERE; LOCATION; MORPHOLOGY; WAVES
C1 [Morton, Emily A.; Arrowsmith, Stephen J.] Los Alamos Natl Lab, Geophys Grp, EES 17, Los Alamos, NM 87545 USA.
RP Morton, EA (reprint author), Los Alamos Natl Lab, Geophys Grp, EES 17, POB 1663,Mail Stop F665, Los Alamos, NM 87545 USA.
EM emorton@lanl.gov
FU National Science Foundation [EAR-0323309, EAR-0323311, EAR-0733069]
FX We are grateful for reviews from David Fee and an anonymous reviewer,
which helped us to clarify and strengthen this work. We thank Philip
Blom for use of his geometric acoustics ray propagation code and input
on the project, as well as David Green, Dale Anderson, Rod Whitaker, and
Omar Marcillo for helpful feedback. We also thank Alexandra Nippress for
providing Utah test and training range event picks and information used
in Nippress et al. (2014) for comparisons. Data from the Transportable
Array network were made freely available as part of the EarthScope
USArray facility, operated by Incorporated Research Institutions for
Seismology and supported by the National Science Foundation, under
Cooperative Agreements EAR-0323309, EAR-0323311, and EAR-0733069. The
GEOS-5 data utilized in conjunction with other data sources in the
National Research Laboratory ground-to-space (G2S) atmospheric
specification used in modeling was provided by the Global Modeling and
Assimilation Office at National Aeronautics and Space Administration
(NASA) Goddard Space Flight Center through the online data portal in the
NASA Center for Climate Simulation. The National Oceanic and Atmospheric
Administration (NOAA) Global Forecast System (GFS), also utilized in the
G2S specifications, was obtained from NOAA's National Operational Model
Archive and Distribution System, which is maintained at NOAA's National
Climatic Data Center. This document is Los Alamos National Laboratory
Publication Number LA-UR-14-24264.
NR 24
TC 4
Z9 4
U1 2
U2 6
PU SEISMOLOGICAL SOC AMER
PI ALBANY
PA 400 EVELYN AVE, SUITE 201, ALBANY, CA 94706-1375 USA
SN 0895-0695
EI 1938-2057
J9 SEISMOL RES LETT
JI Seismol. Res. Lett.
PD NOV-DEC
PY 2014
VL 85
IS 6
BP 1223
EP 1233
DI 10.1785/0220140124
PG 11
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA AS8QD
UT WOS:000344512500009
ER
PT J
AU Kasem, MA
Gonzalez, JJ
Russo, RE
Harith, MA
AF Kasem, M. A.
Gonzalez, J. J.
Russo, R. E.
Harith, M. A.
TI Effect of the wavelength on laser induced breakdown spectrometric
analysis of archaeological bone
SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
LA English
DT Article; Proceedings Paper
CT 7th Euro-Mediterranean Symposium on Laser Induced Breakdown Spectroscopy
(EMSLIBS)
CY SEP 16-20, 2013
CL Bari, ITALY
DE LIBS; Wavelength effect; Archaeology; Bone
ID TRACE-ELEMENTS; FOSSIL BONES; SPECTROSCOPY; STRONTIUM; AGE
AB The analytical exploitation of the laser induced plasma suffers from its transient behavior due to some nonlinear effects. These phenomena are matrix-dependent and limit the use of LIBS to mostly semi-quantitative precision. The plasma parameters have to be kept as constant as possible during LIBS measurements. Studying archaeological bone samples using LIBS technique could be more difficult since these samples are less tough in their texture than many other solid samples. Thus, the ablation process could change the sample morphological features rapidly resulting in poor reproducibility and statistics. Furthermore archaeological bones are subjected to diagenesis effects due to burial environment and postmortem effects. In the present work comparative analytical study of UV (266 nm) and IR (1064 nm) LIBS for archaeological bone samples belonging to four ancient Egyptian dynasties representing the middle kingdom (1980-1630 BC), 2nd intermediate period (1630-1539/23 BC), Roman-Greek period (30 BC-A.D. 395) and the late period (664-332 BC). Measurements have been performed under identical experimental conditions except the laser wavelength to examine its effects. Elemental fluctuations within the same dynasty were studied for reliable information about each dynasty. The analytical results demonstrated that UV-LIBS gives a more realistic picture for bone elemental composition within the same dynasty, and bone ash could be more suitable as a reference material for bone calibration in the case of UV-LIBS. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Kasem, M. A.; Harith, M. A.] Cairo Univ, NILES, Giza, Egypt.
[Gonzalez, J. J.; Russo, R. E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Harith, MA (reprint author), Cairo Univ, NILES, Giza, Egypt.
EM mharithm@niles.edu.eg
NR 18
TC 3
Z9 4
U1 5
U2 31
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0584-8547
J9 SPECTROCHIM ACTA B
JI Spectroc. Acta Pt. B-Atom. Spectr.
PD NOV 1
PY 2014
VL 101
BP 26
EP 31
DI 10.1016/j.sab.2014.07.010
PG 6
WC Spectroscopy
SC Spectroscopy
GA AS7MO
UT WOS:000344440300005
ER
PT J
AU Cordes, NL
Havrilla, GJ
Usov, IO
Obrey, KA
Patterson, BM
AF Cordes, Nikolaus L.
Havrilla, George J.
Usov, Igor O.
Obrey, Kimberly A.
Patterson, Brian M.
TI Non-destructive elemental quantification of polymer-embedded thin films
using laboratory based X-ray techniques
SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
LA English
DT Article
DE Confocal micro-X-ray fluorescence; X-ray computed tomography; Embedded
thin films
ID COMPUTED-TOMOGRAPHY; MICRO-XRF; FLUORESCENCE SPECTROSCOPY; QUANTITATIVE
RADIOGRAPHY; CALIBRATION; RECONSTRUCTION; THICKNESS; OBJECTS; COPPER;
MODEL
AB Thin coatings are important for a variety of industries including energy (e.g., solar cells, batteries), consumer electronics (e.g., LCD displays, computer chips), and medical devices (e.g., implants). These coatings are typically highly uniform layers with thicknesses ranging from a monolayer up to several micrometers. Characterizing these highly uniform coatings for their thickness, elemental composition, and uniformity are all paramount, but obtaining these measurements can be more difficult when the layers are subsurface and must be interrogated non-destructively. The coupling of confocal micro-X-ray fluorescence (confocal MXRF) and nano-scale X-ray computed tomography (nano-CT) together can make these measurements while meeting these sensitivity and resolution specifications necessary for characterizing thin films. Elemental composition, atomic percent, placement, and uniformity can be measured in three dimensions with this integrated approach. Confocal MXRF uses a pair of polycapillary optics to focus and collect X-rays from a material from a 3D spatially restricted confocal volume. Because of the spatial definition, individual layers (of differing composition) can be characterized based upon the elementally characteristic X-ray fluorescence collected for each element. Nano-scale X-ray computed tomography, in comparison, can image the layers at very high resolution (down to 50 nm) to precisely measure the embedded layer thickness. These two techniques must be used together if both the thickness and atomic density of a layer are unknown. This manuscript will demonstrate that it is possible to measure both the atomic percent of an embedded thin film layer and confirm its manufacturing quality. As a proof of principle, a 1.5 atomic percent, 2 pm-thick Ge layer embedded within polymer capsules, used for laser plasma experiments at the Omega Laser Facility and National Ignition Facility, are measured. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Cordes, Nikolaus L.; Usov, Igor O.; Obrey, Kimberly A.; Patterson, Brian M.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
[Havrilla, George J.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
RP Cordes, NL (reprint author), Los Alamos Natl Lab, Mat Sci & Technol Div, POB 1663, Los Alamos, NM 87545 USA.
EM ncordes@lanl.gov
OI Havrilla, George/0000-0003-2052-7152; Cordes,
Nikolaus/0000-0003-3367-5592; Patterson, Brian/0000-0001-9244-7376
FU US Department of Energy [DE-AC52-06NA25396]
FX The authors thank General Atomics, Haibo Huang and Abbas Nikroo for the
loan of the capsules. Los Alamos National Laboratory is operated by Los
Alamos National Security LLC under contract number DE-AC52-06NA25396 for
the US Department of Energy.
NR 45
TC 7
Z9 7
U1 2
U2 28
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0584-8547
J9 SPECTROCHIM ACTA B
JI Spectroc. Acta Pt. B-Atom. Spectr.
PD NOV 1
PY 2014
VL 101
BP 320
EP 329
DI 10.1016/j.sab.2014.09.016
PG 10
WC Spectroscopy
SC Spectroscopy
GA AS7MO
UT WOS:000344440300041
ER
PT J
AU Lin, ZH
AF Lin, Zhenhong
TI Optimizing and Diversifying Electric Vehicle Driving Range for US
Drivers
SO TRANSPORTATION SCIENCE
LA English
DT Article
DE electric vehicle; range anxiety; optimal design; transportation energy;
alternative fuel infrastructure
ID CHARGING INFRASTRUCTURE; ENERGY IMPACT; MANAGEMENT; ECONOMICS
AB Properly determining the driving range is critical for accurately predicting the sales and social benefits of battery electric vehicles (BEVs). This study proposes a framework for optimizing the driving range by minimizing the sum of battery price, electricity cost, and range limitation cost-referred to as the "range-related cost"-as a measurement of range anxiety. The objective function is linked to policy-relevant parameters, including battery cost and price markup, battery utilization, charging infrastructure availability, vehicle efficiency, electricity and gasoline prices, household vehicle ownership, daily driving patterns, discount rate, and perceived vehicle lifetime. Qualitative discussion of the framework and its empirical application to a sample (N=D 36,664) representing new car drivers in the United States is included. The quantitative results strongly suggest that ranges of less than 100 miles are likely to be more popular in the BEV market for a long period of time. The average optimal range among U. S. drivers is found to be largely inelastic. Still, battery cost reduction significantly drives BEV demand toward longer ranges, whereas improvement in the charging infrastructure is found to significantly drive BEV demand toward shorter ranges. The bias of a single-range assumption and the effects of range optimization and diversification in reducing such biases are both found to be significant.
C1 Oak Ridge Natl Lab, Knoxville, TN 37932 USA.
RP Lin, ZH (reprint author), Oak Ridge Natl Lab, Knoxville, TN 37932 USA.
EM linz@ornl.gov
FU U.S. Department of Energy's Vehicle Technologies Office
[DE-AC05-00OR22725]
FX This study is sponsored by the U.S. Department of Energy's Vehicle
Technologies Office [Contract DE-AC05-00OR22725]. The author thanks
project managers Phil Patterson (retired) and Jake Ward for their
support and assumes sole responsibility for the content and viewpoints
expressed.
NR 30
TC 7
Z9 7
U1 1
U2 21
PU INFORMS
PI CATONSVILLE
PA 5521 RESEARCH PARK DR, SUITE 200, CATONSVILLE, MD 21228 USA
SN 0041-1655
J9 TRANSPORT SCI
JI Transp. Sci.
PD NOV
PY 2014
VL 48
IS 4
SI SI
BP 635
EP 650
DI 10.1287/trsc.2013.0516
PG 16
WC Operations Research & Management Science; Transportation; Transportation
Science & Technology
SC Operations Research & Management Science; Transportation
GA AT4AT
UT WOS:000344880400013
ER
PT J
AU Petrie, ES
Evans, JP
Bauer, SJ
AF Petrie, E. S.
Evans, J. P.
Bauer, S. J.
TI Failure of cap-rock seals as determined from mechanical stratigraphy,
stress history, and tensile-failure analysis of exhumed analogs
SO AAPG BULLETIN
LA English
DT Article
ID CENTRAL UTAH; COLORADO PLATEAU; DAMAGE ZONE; FRACTURES; FAULTS;
SANDSTONE; USA; DEFORMATION; BASIN; PERMEABILITY
AB The sedimentologic and tectonic histories of elastic cap rocks and their inherent mechanical properties control the nature of permeable fractures within them. The migration of fluid through mm- to cm-scale fracture networks can result in focused fluid flow allowing hydrocarbon production from unconventional reservoirs or compromising the seal integrity of fluid traps. To understand the nature and distribution of subsurface fluid-flow pathways through fracture networks in cap-rock seals we examine four exhumed Paleozoic and Mesozoic seal analogs in Utah. We combine these outcrop analyses with subsidence analysis, paleo-loading histories, and rock-strength testing data in modified Mohr-Coulomb-Griffith analyses to evaluate the effects of differential stress and rock type on fracture mode.
Relative to the underlying sandstone reservoirs, all four seal types are low-permeability, heterolithic sequences that show mineralized hydraulic-extension fractures, extensional-shear fractures, and shear fractures. Burial-history models suggest that the cap-rock seal analogs reached a maximum burial depth >4 km (2.5 mi) and experienced a lithostatic load of up to 110 MPa (15,954 psi). Median tensile strength from indirect mechanical tests ranges from 2.3 MPa (334 psi) in siltstone to 11.5 MPa (1668 psi) in calcareous shale. Analysis of the pore-fluid factor (lambda(v) = P-f/sigma(v)) through time shows changes in the expected failure mode (extensional shear or hydraulic extension), and that failure mode depends on a combination of mechanical rock properties and differential stress. As expected with increasing lithostatic load, the amount of overpressure that is required to induce failure increases but is also Ethology dependent.
C1 [Petrie, E. S.] Western State Colorado Univ, Dept Geol, Gunnison, CO 81230 USA.
[Evans, J. P.] Utah State Univ, Dept Geol, Logan, UT 84322 USA.
[Bauer, S. J.] Sandia Natl Labs, Geomech Res Ctr Expt Geosci, Albuquerque, NM 87123 USA.
RP Petrie, ES (reprint author), Western State Colorado Univ, Dept Geol, Gunnison, CO 81230 USA.
EM epetrie@western.edu; james.evans@usu.edu; sjbauer@sandia.gov
FU GDL Foundation; DOE [DE-FC26-0xNT4 FE0001786]; U.S. Department of
Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
FX This research is supported by grants from GDL Foundation Fellowship to
Petrie and DOE DE-FC26-0xNT4 FE0001786 to Evans. Sandia National
Laboratories is a multiprogram laboratory managed and operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Corporation,
for the US. Department of Energy's National Nuclear Security
Administration under contract DE-AC04-94AL85000. The authors thank
fellow researchers within the Utah State University Department of
Geology structure group for their feedback and discussions. We thank the
AAPG editor and reviewers for their detailed comments and suggestions
for improvement.
NR 69
TC 3
Z9 3
U1 4
U2 18
PU AMER ASSOC PETROLEUM GEOLOGIST
PI TULSA
PA 1444 S BOULDER AVE, PO BOX 979, TULSA, OK 74119-3604 USA
SN 0149-1423
EI 1558-9153
J9 AAPG BULL
JI AAPG Bull.
PD NOV
PY 2014
VL 98
IS 11
BP 2365
EP 2389
DI 10.1306/06171413126
PG 25
WC Geosciences, Multidisciplinary
SC Geology
GA AS7OO
UT WOS:000344445300008
ER
PT J
AU Hossain, MZ
Marian, J
AF Hossain, M. Z.
Marian, Jaime
TI Stress-dependent solute energetics in W-Re alloys from first-principles
calculations
SO ACTA MATERIALIA
LA English
DT Article
DE Applied stress; Vacancy-formation energy; Solute-migration energy;
Dislocation-solute interaction; Solid-solution strengthening
ID TUNGSTEN ALLOYS; METALS; TRANSITION; DIFFUSION; ALUMINUM; KINETICS
AB We present a systematic study of Re solute transport energetics in W using density functional theory calculations. The study focuses on substitutional solute diffusion in the presence of dislocation strain fields as a first step toward capturing the essential physics of solid solution hardening/softening in W-Re alloys. We calculate the heat of solution, the vacancy formation energy and the solute migration energy as functions of both hydrostatic and shear strains. Our results show that the vacancy formation energy scales with hydrostatic deformation, whereas it decreases with increasing shear strain. The migration energy decreases with hydrostatic deformation, whereas it displays path-length-dependent behavior under shear deformation. In addition, we compute the binding energies of an Re solute atom to the cores of 1/2 < 111 > screw and edge dislocations, and find the binding energy to be highest in the tensile lobe of the edge core. Finally, we obtain the dilatational stress due to a solute atom as a function of distance. Our calculations are then used to parameterize the jump rate of Re atoms in W as a function of the underlying stress state. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Hossain, M. Z.] CALTECH, Div Engn & Appl Sci, Pasadena, CA 91125 USA.
[Marian, Jaime] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Hossain, MZ (reprint author), CALTECH, Div Engn & Appl Sci, Pasadena, CA 91125 USA.
EM zubaer@caltech.edu
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; DOE/OFES Early Career Program
FX This work was carried out under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344. M.Z.H. is very grateful to Prof. Kaushik Bhattacharya
and the PSAAP-Caltech program. J.M. acknowledges support from DOE/OFES
Early Career Program.
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
EI 1873-2453
J9 ACTA MATER
JI Acta Mater.
PD NOV
PY 2014
VL 80
BP 107
EP 117
DI 10.1016/j.actamat.2014.07.028
PG 11
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA AS3XK
UT WOS:000344208300010
ER
PT J
AU Wells, PB
Yamamoto, T
Miller, B
Milot, T
Cole, J
Wu, Y
Odette, GR
AF Wells, Peter B.
Yamamoto, Takuya
Miller, Brandon
Milot, Tim
Cole, James
Wu, Yuan
Odette, G. Robert
TI Evolution of manganese-nickel-silicon-dominated phases in highly
irradiated reactor pressure vessel steels
SO ACTA MATERIALIA
LA English
DT Article
DE Radiation damage; Atom probe tomography; Precipitation; Irradiation
embrittlement
ID FE-CU-NI; RPV STEELS; ATOM-PROBE; FLOW-STRESS; EMBRITTLEMENT; COPPER;
MODEL; SCATTERING; WELDS; IRON
AB Formation of a high density of Mn-Ni-Si nanoscale precipitates in irradiated Cu-free and Cu-bearing reactor pressure vessel steels could lead to severe unexpected embrittlement. Models long ago predicted that these precipitates, which are not treated in current embrittlement prediction models, would emerge only at high fluence. However, the mechanisms and variables that control Mn-Ni-Si precipitate formation, and their detailed characteristics, have not been well understood. High flux irradiations of six steels with systematic variations in Cu and Ni contents were carried out at similar to 295 degrees C to high and very high neutron fluences of similar to 1.3 x 10(20) and similar to 1.1 x 10(21) n cm(-2). Atom probe tomography shows that significant mole fractions of Mn-Ni-Si-dominated precipitates form in the Cu-bearing steels at similar to 1.3 x 10(20) n cm(-2), while they are only beginning to develop in Cu-free steels. However, large mole fractions of these precipitates, far in excess of those found in previous studies, are observed at 1.1 x 10(21) n cm(-2) at all Cu contents. At the highest fluence, the precipitate mole fractions primarily depend on the alloy Ni, rather than Cu, content. The Mn-Ni-Si precipitates lead to very large increases in measured hardness, corresponding to yield strength elevations of up to almost 700 MPa. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Wells, Peter B.; Yamamoto, Takuya; Milot, Tim; Wu, Yuan; Odette, G. Robert] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA.
[Miller, Brandon; Cole, James] Idaho Natl Lab, Idaho Falls, ID 83402 USA.
RP Wells, PB (reprint author), Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA.
EM pwells@umail.ucsb.edu
OI Cole, James/0000-0003-1178-5846
FU Advanced Test Reactor National Scientific User Facility through US
Department of Energy, Office of Nuclear Energy under DOE Idaho
Operations Office [DE-AC07-051D14517]; Jean Claude Van Duysen of
Electricite de France; MRSEC Program of NSF [DMR 1121053]; DOE Office of
Nuclear Energy's Nuclear Energy University Program, as part of the LRW
Sustainability Task
FX A portion of this research, both the ATR irradiation and FIB/APT at the
Center for Advanced Energy Studies-Microscopy and Characterization Suite
(CAES-MaCS), was supported by the Advanced Test Reactor National
Scientific User Facility through the US Department of Energy, Office of
Nuclear Energy under DOE Idaho Operations Office Contract
DE-AC07-051D14517. Special thanks go to Cohn Knight at the Idaho
National Laboratory for assisting in the complex steps needed to gain
access to the irradiated ATR specimens. The much earlier piggyback BR2
irradiations were sponsored by Jean Claude Van Duysen of Electricite de
France and carried out under the supervision of Lorenzo Malerbra at SCK
Belgium. We also thank Peter Hosemann at UC Berkeley for access to their
FIB to prepare APT samples from the high-fluence (BR2) condition. The
MRL Shared Experimental Facilities were used for performing APT on the
high-fluence (BR2) samples and are supported by the MRSEC Program of the
NSF under Award No. DMR 1121053 as a member of the NSF-funded Materials
Research Facilities Network (www.mrfn.org). The bulk of this research
was supported by the DOE Office of Nuclear Energy's Nuclear Energy
University Program, as part of the LRW Sustainability Task. Finally we
thank Huibin Ke, Professor Dane Morgan and our other collaborators at
the University of Wisconsin who are leading the modeling effort cited in
this paper and who were the source of many helpful discussions and much
insight.
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
EI 1873-2453
J9 ACTA MATER
JI Acta Mater.
PD NOV
PY 2014
VL 80
BP 205
EP 219
DI 10.1016/j.actamat.2014.07.040
PG 15
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA AS3XK
UT WOS:000344208300019
ER
PT J
AU Kiani, S
Leung, KWK
Radmilovic, V
Minor, AM
Yang, JM
Warner, DH
Kodambaka, S
AF Kiani, S.
Leung, K. W. K.
Radmilovic, V.
Minor, A. M.
Yang, J. -M.
Warner, D. H.
Kodambaka, S.
TI Dislocation glide-controlled room-temperature plasticity in 6H-SiC
single crystals
SO ACTA MATERIALIA
LA English
DT Article
DE Transmission electron microscopy; Plasticity; Dislocations; Silicon
carbide; Molecular dynamics
ID SILICON-CARBIDE; ACTIVATION PARAMETERS; PHASE-TRANSFORMATION; BRITTLE
REGIME; SIC NANOWIRES; DEFORMATION; INDENTATION; NANOINDENTATION;
MICROHARDNESS; SIMULATION
AB In situ transmission electron microscopy observations of uniaxial compression of sub-300 nm diameter, cylindrical, single-crystalline 6H-SiC pillars oriented along < 0001 > and at 45 with respect to < 0001 > reveal that plastic slip occurs at room-temperature on the basal {0001} planes at stresses above 7.8 GPa. Using a combination of aberration-corrected electron microscopy, molecular dynamics simulations and density functional theory calculations, we attribute the observed phenomenon to basal slip on the shuffle set along < 1 (1) over bar 00 >. By comparing the experimentally measured yield stresses with the calculated values required for dislocation nucleation, we suggest that room-temperature plastic deformation in 6H-SiC crystals is controlled by glide rather than nucleation of dislocations. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Kiani, S.; Yang, J. -M.; Kodambaka, S.] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA.
[Leung, K. W. K.; Warner, D. H.] Cornell Univ, Sch Civil & Environm Engn, Ithaca, NY 14853 USA.
[Radmilovic, V.] Univ Belgrade, Fac Technol & Met, Nanotechnol & Funct Mat Ctr, Belgrade 11000, Serbia.
[Minor, A. M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
[Minor, A. M.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
RP Warner, DH (reprint author), Cornell Univ, Sch Civil & Environm Engn, Ithaca, NY 14853 USA.
EM dhw52@cornell.edu; kodambaka@ucla.edu
RI Warner, Derek/A-2303-2012; Foundry, Molecular/G-9968-2014
FU AFOSR [FA9550-10-1-0496, FA9550-11-10273]; Office of Science, Office of
Basic Energy Sciences, of the US Department of Energy
[DE-AC02-05CH11231]; Nanotechnology and Functional Material Center;
Ministry of Education and Science of the Republic of Serbia [172054]
FX We gratefully acknowledge support from the AFOSR (Dr. Ali Sayir)
FA9550-10-1-0496 and FA9550-11-10273. The in situ electron microscopy
experiments were conducted as part of a user project at the National
Center for Electron Microscopy, Lawrence Berkeley National Laboratory,
supported by the Office of Science, Office of Basic Energy Sciences, of
the US Department of Energy under Contract No. DE-AC02-05CH11231. We
thank Marissa Manusco for her help with the sample preparation. V.R.
acknowledges support from Nanotechnology and Functional Material Center,
and the Ministry of Education and Science of the Republic of Serbia,
project no. 172054.
NR 38
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
EI 1873-2453
J9 ACTA MATER
JI Acta Mater.
PD NOV
PY 2014
VL 80
BP 400
EP 406
DI 10.1016/j.actamat.2014.07.066
PG 7
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA AS3XK
UT WOS:000344208300036
ER
PT J
AU Ke, FS
Yue, GQ
Shen, B
Dong, F
Wang, SY
Zheng, YX
Chen, LY
Wang, CZ
Ho, KM
AF Ke, F. S.
Yue, G. Q.
Shen, B.
Dong, F.
Wang, S. Y.
Zheng, Y. X.
Chen, L. Y.
Wang, C. Z.
Ho, K. M.
TI Bergman-type medium-range order in rapidly quenched Ag0.74Ge0.26
eutectic alloy studied by ab initio molecular dynamics simulation
SO ACTA MATERIALIA
LA English
DT Article
DE Ab initio molecular dynamics; Local structure; Short-range order;
Medium-range order
ID METALLIC GLASSES; LIQUID; SYSTEMS; PHASE; GOLD
AB The structure of liquid and rapidly quenched amorphous Ag0.74Ge0.26 alloy at the eutectic composition was studied by ab initio molecular dynamics (MD) simulations. The local structural properties were systematically investigated from the liquid at 1123 K to amorphous solid at 300 K. The pair-correlation function at 976 K from the MD simulations agrees well with the experimental data. The local structures were also analyzed using Honeycutt-Andersen (HA) indices, Voronoi tessellation and the atomic cluster alignment (ACA) method. The HA indices analysis reveals that there is a high population of pentagonal bipyramid structure which become more predominant upon solidification. Voronoi tessellation analysis indicates strong icosahedral short-range order (SRO) in the liquid and amorphous samples generated by the MD simulations. Using the ACA method, the development of icosahedral SRO upon cooling is further confirmed and a Bergman medium-range order is also observed. The analysis of structural properties and chemical short-range order suggests that Ag atoms tend to have a Bergman-like packing, while the dispersed Ge atoms prevent the alloy from forming a long-range order upon cooling. The Bergman medium-range order is also confirmed by the constrained reversed Monte Carlo results. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Ke, F. S.; Yue, G. Q.; Shen, B.; Dong, F.; Wang, S. Y.; Zheng, Y. X.; Chen, L. Y.] Fudan Univ, Shanghai Ultra Precis Opt Mfg Engn Ctr, Shanghai 200433, Peoples R China.
[Ke, F. S.; Yue, G. Q.; Shen, B.; Dong, F.; Wang, S. Y.; Zheng, Y. X.; Chen, L. Y.] Fudan Univ, Dept Opt Sci & Engn, Shanghai 200433, Peoples R China.
[Yue, G. Q.; Wang, S. Y.; Wang, C. Z.; Ho, K. M.] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA.
[Yue, G. Q.; Wang, S. Y.; Wang, C. Z.; Ho, K. M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Wang, S. Y.] Key Lab Informat Sci Elect Waves MoE, Shanghai 200433, Peoples R China.
RP Wang, SY (reprint author), Fudan Univ, Shanghai Ultra Precis Opt Mfg Engn Ctr, Shanghai 200433, Peoples R China.
EM songyouwang@fudan.edu.cn
RI Wang, Songyou/H-4529-2011
OI Wang, Songyou/0000-0002-4249-3427
FU NSF of China [11374055, 10974029]; Ministry of Education of China
[20100071110025]; National Basic Research Program of China
[2010CB933703, 2012CB934303]; Fudan High-end Computing Center; US
Department of Energy, Basic Energy Sciences; US Department of Energy,
Division of Materials Science and Engineering; National Energy Research
Scientific Computing Centre (NERSC) in Berkeley, CA [DE-AC02-07CH11358]
FX The work at Fudan university was supported by the NSF of China (Grant
Nos. 11374055 and 10974029), Doctoral Fund of Ministry of Education of
China (No. 20100071110025), National Basic Research Program of China
(No. 2010CB933703 and 2012CB934303), and the Fudan High-end Computing
Center. Work at Ames Laboratory was supported by the US Department of
Energy, Basic Energy Sciences, and Division of Materials Science and
Engineering, including a grant of computer time at the National Energy
Research Scientific Computing Centre (NERSC) in Berkeley, CA under
Contract No. DE-AC02-07CH11358.
NR 33
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U1 2
U2 51
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
EI 1873-2453
J9 ACTA MATER
JI Acta Mater.
PD NOV
PY 2014
VL 80
BP 498
EP 504
DI 10.1016/j.actamat.2014.06.049
PG 7
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA AS3XK
UT WOS:000344208300045
ER
PT J
AU Gludovatz, B
Naleway, SE
Ritchie, RO
Kruzic, JJ
AF Gludovatz, Bernd
Naleway, Steven E.
Ritchie, Robert O.
Kruzic, Jamie J.
TI Size-dependent fracture toughness of bulk metallic glasses (vol 70, pg
198, 2014)
SO ACTA MATERIALIA
LA English
DT Correction
C1 [Gludovatz, Bernd; Ritchie, Robert O.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Naleway, Steven E.; Kruzic, Jamie J.] Oregon State Univ, Sch Mech Ind & Mfg Engn, Corvallis, OR 97331 USA.
[Ritchie, Robert O.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
RP Kruzic, JJ (reprint author), Oregon State Univ, Sch Mech Ind & Mfg Engn, Corvallis, OR 97331 USA.
EM jamie.kruzic@oregonstate.edu
RI Kruzic, Jamie/M-3558-2014;
OI Kruzic, Jamie/0000-0002-9695-1921; Gludovatz, Bernd/0000-0002-2420-3879
NR 1
TC 0
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U1 2
U2 35
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
EI 1873-2453
J9 ACTA MATER
JI Acta Mater.
PD NOV
PY 2014
VL 80
BP 507
EP 507
DI 10.1016/j.actamat.2014.04.001
PG 1
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA AS3XK
UT WOS:000344208300047
ER
PT J
AU Liu, HH
Valocchi, AJ
Werth, C
Kang, QJ
Oostrom, M
AF Liu, Haihu
Valocchi, Albert J.
Werth, Charles
Kang, Qinjun
Oostrom, Mart
TI Pore-scale simulation of liquid CO2 displacement of water using a
two-phase lattice Boltzmann model
SO ADVANCES IN WATER RESOURCES
LA English
DT Article
DE Pore-scale simulation; Lattice Boltzmann model; Porous media; Multiphase
flow; Fingering; Heterogeneity
ID THROUGH POROUS-MEDIA; MULTIPHASE FLOW; RELATIVE PERMEABILITY;
FLUID-FLOWS; THERMOCAPILLARY FLOWS; NUMERICAL SIMULATIONS; CAPILLARY;
EQUATION; DYNAMICS; NETWORK
AB A lattice Boltzmann color-fluid model, which was recently proposed by Liu et al. (2012) based on a concept of continuum surface force, is improved to simulate immiscible two-phase flows in porous media. The new improvements allow the model to account for different kinematic viscosities of both fluids and to model fluid-solid interactions. The capability and accuracy of this model is first validated by two benchmark tests: a layered two-phase flow with a variable viscosity ratio, and a dynamic capillary intrusion. This model is then used to simulate liquid CO2 (LCO2) displacing water in a dual-permeability pore network. The extent and behavior of LCO2 preferential flow (i.e., fingering) is found to depend on the capillary number (Ca), and three different displacement patterns observed in previous micromodel experiments are reproduced. The predicted variation of LCO2 saturation with Ca, as well as variation of specific interfacial length with LCO2 saturation, are both in reasonable agreement with the experimental observations. To understand the effect of heterogeneity on pore-scale displacement, we also simulate LCO2 displacing water in a randomly heterogeneous pore network, which has the same size and porosity as the simulated dual-permeability pore network. In comparison to the dual-permeability case, the transition from capillary fingering to viscous fingering occurs at a higher Ca, and LCO2 saturation is higher at low Ca but lower at high Ca. In either pore network, the LCO2-water specific interfacial length is found to obey a power-law dependence on LCO2 saturation. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Liu, Haihu; Valocchi, Albert J.; Werth, Charles] Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA.
[Liu, Haihu] Univ Strathclyde, Dept Mech & Aerosp Engn, Glasgow G1 1XJ, Lanark, Scotland.
[Kang, Qinjun] Los Alamos Natl Lab, Earth & Environm Sci Div, Los Alamos, NM 87545 USA.
[Oostrom, Mart] Pacific NW Natl Lab, Div Energy & Environm, Hydrol Tech Grp, Richland, WA 99352 USA.
RP Liu, HH (reprint author), Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA.
EM haihliu@gmail.com
RI Liu, Haihu/B-2097-2013
OI Liu, Haihu/0000-0002-0295-1251
FU LDRD Program of Los Alamos National Laboratory [20100025DR, 20140002DR];
International Institute for Carbon Neutral Energy Research - Japanese
Ministry of Education, Culture, Sports, Science and Technology
[WPI-I2CNER]; US Department of Energy [DE-AC05-76RL01830]
FX The authors gratefully acknowledge the support from the LDRD Program
(20100025DR and 20140002DR) of Los Alamos National Laboratory and from
the International Institute for Carbon Neutral Energy Research
(WPI-I2CNER), sponsored by the Japanese Ministry of Education, Culture,
Sports, Science and Technology. Dr. Mart Oostrom's contribution has been
supported by the "Pore-Scale Modeling'' Research Campaign at EMSL, a
national scientific user facility sponsored by the Department of
Energy's Office of Biological and Environmental Research and located at
Pacific Northwest National Laboratory, operated by Battelle for the US
Department of Energy under Contract DE-AC05-76RL01830. We also
acknowledge the computing support from LANL Institutional Computing
Program. We thank Dr. Changyong Zhang, currently at Exxon-Mobil, for his
assistance with analyzing and interpreting the results of the
dual-permeability micromodel experiments he performed while at PNNL.
NR 104
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U1 8
U2 75
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0309-1708
EI 1872-9657
J9 ADV WATER RESOUR
JI Adv. Water Resour.
PD NOV
PY 2014
VL 73
BP 144
EP 158
DI 10.1016/j.advwatres.2014.07.010
PG 15
WC Water Resources
SC Water Resources
GA AS1US
UT WOS:000344068000012
ER
PT J
AU Hyung, SW
Piehowski, PD
Moore, RJ
Orton, DJ
Schepmoes, AA
Clauss, TR
Chu, RK
Fillmore, TL
Brewer, H
Liu, T
Zhao, R
Smith, RD
AF Hyung, Seok-Won
Piehowski, Paul D.
Moore, Ronald J.
Orton, Daniel J.
Schepmoes, Athena A.
Clauss, Therese R.
Chu, Rosalie K.
Fillmore, Thomas L.
Brewer, Heather
Liu, Tao
Zhao, Rui
Smith, Richard D.
TI Microscale depletion of high abundance proteins in human biofluids using
IgY14 immunoaffinity resin: analysis of human plasma and cerebrospinal
fluid
SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY
LA English
DT Article
DE Microscale depletion; IgY-14 immunoaffinity resin; Human plasma;
Cerebrospinal fluid; MS
ID BIOMARKER DISCOVERY; HUMAN SERUM; PROTEOMIC ANALYSIS; MASS-SPECTROMETRY;
SHOTGUN PROTEOMICS; SAMPLE PREPARATION; IDENTIFICATION; SEPARATION;
STRATEGIES; CHROMATOGRAPHY
AB Removal of highly abundant proteins in plasma is often carried out using immunoaffinity depletion to extend the dynamic range of measurements to lower abundance species. While commercial depletion columns are available for this purpose, they generally are not applicable to limited sample quantities (< 20 mu L) due to low yields stemming from losses caused by nonspecific binding to the column matrix and concentration of large eluent volumes. Additionally, the cost of the depletion media can be prohibitive for larger-scale studies. Modern LC-MS instrumentation provides the sensitivity necessary to scale-down depletion methods with minimal sacrifice to proteome coverage, which makes smaller volume depletion columns desirable for maximizing sample recovery when samples are limited, as well as for reducing the expense of large-scale studies. We characterized the performance of a 346 mu L column volume microscale depletion system, using four different flow rates to determine the most effective depletion conditions for similar to 6-mu L injections of human plasma proteins and then evaluated depletion reproducibility at the optimum flow rate condition. Depletion of plasma using a commercial 10-mL depletion column served as the control. Results showed depletion efficiency of the microscale column increased as flow rate decreased, and that our microdepletion was reproducible. In an initial application, a 600-mu L sample of human cerebrospinal fluid (CSF) pooled from multiple sclerosis patients was depleted and then analyzed using reversed phase liquid chromatography-mass spectrometry to demonstrate the utility of the system for this important biofluid where sample quantities are more commonly limited.
C1 [Hyung, Seok-Won; Piehowski, Paul D.; Moore, Ronald J.; Orton, Daniel J.; Schepmoes, Athena A.; Clauss, Therese R.; Chu, Rosalie K.; Fillmore, Thomas L.; Brewer, Heather; Liu, Tao; Zhao, Rui; Smith, Richard D.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
[Hyung, Seok-Won; Piehowski, Paul D.; Moore, Ronald J.; Orton, Daniel J.; Schepmoes, Athena A.; Clauss, Therese R.; Chu, Rosalie K.; Fillmore, Thomas L.; Brewer, Heather; Liu, Tao; Zhao, Rui; Smith, Richard D.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Hyung, Seok-Won] Korea Res Inst Stand & Sci, Taejon 305340, South Korea.
RP Smith, RD (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
EM swhyung@kriss.re.kr; rds@pnnl.gov
RI Smith, Richard/J-3664-2012;
OI Smith, Richard/0000-0002-2381-2349; Piehowski, Paul/0000-0001-5108-2227
FU National Center for Research Resources [5 P41 RR018522-10]; National
Institute of General Medical Sciences from National Institutes of Health
[8 P41 GM103493-10]; Department of Energy Office of Biological and
Environmental Research Genome Sciences Program; DOE [DE-AC05-76RLO01830]
FX This project was supported by grants from the National Center for
Research Resources (5 P41 RR018522-10) and the National Institute of
General Medical Sciences (8 P41 GM103493-10) from the National
Institutes of Health as well as the Department of Energy Office of
Biological and Environmental Research Genome Sciences Program under the
Pan-omics project. Work was performed in the Environmental Molecular
Science Laboratory, a U.S. Department of Energy (DOE) national
scientific user facility at Pacific Northwest National Laboratory (PNNL)
in Richland, WA. Battelle operates PNNL for the DOE under contract
DE-AC05-76RLO01830. We appreciate the favor from Jonas Bergquist at
Uppsala University (Department of Chemistry-Biomedical Center,
Analytical Chemistry and SciLife Lab, Uppsala, Sweden) for the donation
of CSF sample.
NR 54
TC 5
Z9 5
U1 2
U2 15
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1618-2642
EI 1618-2650
J9 ANAL BIOANAL CHEM
JI Anal. Bioanal. Chem.
PD NOV
PY 2014
VL 406
IS 28
BP 7117
EP 7125
DI 10.1007/s00216-014-8058-3
PG 9
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA AS5OQ
UT WOS:000344320300006
PM 25192788
ER
PT J
AU Malfatti, MA
Lao, V
Ramos, CL
Ong, VS
Turteltaub, KW
AF Malfatti, Michael A.
Lao, Victoria
Ramos, Courtney L.
Ong, Voon S.
Turteltaub, Kenneth W.
TI Use of Microdosing and Accelerator Mass Spectrometry To Evaluate the
Pharmacokinetic Linearity of a Novel Tricyclic GyrB/ParE Inhibitor in
Rats
SO ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
LA English
DT Article
ID DRUG DEVELOPMENT; QUANTIFICATION; EXPERIENCE; BINDING; DNA
AB Determining the pharmacokinetics (PKs) of drug candidates is essential for understanding their biological fate. The ability to obtain human PK information early in the drug development process can help determine if future development is warranted. Microdosing was developed to assess human PKs, at ultra-low doses, early in the drug development process. Microdosing has also been used in animals to confirm PK linearity across subpharmacological and pharmacological dose ranges. The current study assessed the PKs of a novel antimicrobial preclinical drug candidate (GP-4) in rats as a step toward human microdosing studies. Dose proportionality was determined at 3 proposed therapeutic doses (3, 10, and 30 mg/kg of body weight), and PK linearity between a microdose and a pharmacological dose was assessed in Sprague-Dawley rats. Plasma PKs over the 3 pharmacological doses were proportional. Over the 10-fold dose range, the maximum concentration in plasma and area under the curve (AUC) increased 9.5- and 15.8-fold, respectively. PKs from rats dosed with a C-14-labeled microdose versus a C-14-labeled pharmacological dose displayed dose linearity. In the animals receiving a microdose and the therapeutically dosed animals, the AUCs from time zero to infinity were 2.6 ng . h/ml and 1,336 ng . h/ml, respectively, and the terminal half-lives were 5.6 h and 1.4 h, respectively. When the AUC values were normalized to a dose of 1.0 mg/kg, the AUC values were 277.5 ng . h/ml for the microdose and 418.2 ng . h/ml for the pharmacological dose. This 1.5-fold difference in AUC following a 300-fold difference in dose is considered linear across the dose range. On the basis of the results, the PKs from the microdosed animals were considered to be predictive of the PKs from the therapeutically dosed animals.
C1 [Malfatti, Michael A.; Lao, Victoria; Turteltaub, Kenneth W.] Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
[Ramos, Courtney L.; Ong, Voon S.] Cubist Pharmaceut, San Diego, CA USA.
RP Malfatti, MA (reprint author), Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
EM malfatti1@llnl.gov
FU U.S. DOE [DE-AC52-07NA27344]; National Institute of General Medical
Sciences [8 P41 GM103483-14]; NIAID/NIH [HHSN272200800042C]; Cubist
Pharmaceuticals
FX This work was performed under the auspices of the U.S. DOE by Lawrence
Livermore National Laboratory at the Research Resource for Biomedical
AMS under contract DE-AC52-07NA27344 and was supported by grants from
the National Institute of General Medical Sciences (8 P41 GM103483-14)
and NIAID/NIH under contract no. HHSN272200800042C, as well as by Cubist
Pharmaceuticals.
NR 26
TC 2
Z9 2
U1 0
U2 5
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0066-4804
EI 1098-6596
J9 ANTIMICROB AGENTS CH
JI Antimicrob. Agents Chemother.
PD NOV
PY 2014
VL 58
IS 11
BP 6477
EP 6483
DI 10.1128/AAC.03300-14
PG 7
WC Microbiology; Pharmacology & Pharmacy
SC Microbiology; Pharmacology & Pharmacy
GA AS3EF
UT WOS:000344158600017
PM 25136019
ER
PT J
AU Kirby, J
Nishimoto, M
Chow, RWN
Pasumarthi, VN
Chan, R
Chan, LJG
Petzold, CJ
Keasling, JD
AF Kirby, James
Nishimoto, Minobu
Chow, Ruthie W. N.
Pasumarthi, Venkata N.
Chan, Rossana
Chan, Leanne Jade G.
Petzold, Christopher J.
Keasling, Jay D.
TI Use of Nonionic Surfactants for Improvement of Terpene Production in
Saccharomyces cerevisiae
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID ADVANCED BIOFUELS PRODUCTION; DIRECTED EVOLUTION; SESQUITERPENE
SYNTHASES; ISOPRENOID PRODUCTION; YEAST; GENES; IDENTIFICATION;
EXPRESSION; MUTANTS
AB To facilitate enzyme and pathway engineering, a selection was developed for improved sesquiterpene titers in Saccharomyces cerevisiae. alpha-Bisabolene, a candidate advanced biofuel, was found to protect yeast against the disruptive action of nonionic surfactants such as Tween 20 (T20). An experiment employing competition between two strains of yeast, one of which makes twice as much bisabolene as the other, demonstrated that growth in the presence of T20 provided sufficient selective pressure to enrich the high-titer strain to form 97% of the population. Following this, various methods were used to mutagenize the bisabolene synthase (BIS) coding sequence, coupled with selection by subculturing in the presence of T20. Mutagenesis targeting the BIS active site did not yield an improvement in bisabolene titers, although mutants were found which made a mixture of alpha-bisabolene and beta-farnesene, another candidate biofuel. Based on evidence that the 3' end of the BIS mRNA may be unstable in yeast, we randomly recoded the last 20 amino acids of the enzyme and, following selection in T20, found a variant which increased specific production of bisabolene by more than 30%. Since T20 could enrich a mixed population, efficiently removing strains that produced little or no bisabolene, we investigated whether it could also be applied to sustain high product titers in a monoculture for an extended period. Cultures grown in the presence of T20 for 14 days produced bisabolene at titers up to 4-fold higher than cultures grown with an overlay of dodecane, used to sequester the terpene product, and 20-fold higher than cultures grown without dodecane.
C1 [Kirby, James; Nishimoto, Minobu; Chow, Ruthie W. N.; Pasumarthi, Venkata N.; Chan, Rossana; Keasling, Jay D.] Univ Calif Berkeley, Calif Inst Quantitat Biosci QB3, Berkeley, CA 94720 USA.
[Kirby, James; Nishimoto, Minobu; Chan, Leanne Jade G.; Petzold, Christopher J.; Keasling, Jay D.] Joint BioEnergy Inst, Emeryville, CA USA.
[Keasling, Jay D.] Univ Calif Berkeley, Dept Chem Biomol Engn, Berkeley, CA 94720 USA.
[Keasling, Jay D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Keasling, JD (reprint author), Univ Calif Berkeley, Calif Inst Quantitat Biosci QB3, Berkeley, CA 94720 USA.
EM keasling@berkeley.edu
RI Keasling, Jay/J-9162-2012
OI Keasling, Jay/0000-0003-4170-6088
FU Office of Science, Office of Biological and Environmental Research, of
the U.S. Department of Energy [DE-AC02-05CH11231]; U.S. Department of
Energy ARPA-E PETRO program [DE-AR0000209]
FX The work conducted through the Joint BioEnergy Institute was supported
by the Office of Science, Office of Biological and Environmental
Research, of the U.S. Department of Energy under contract no.
DE-AC02-05CH11231. The work conducted through the University of
California, Berkeley, was funded through the U.S. Department of Energy
ARPA-E PETRO program, under grant no. DE-AR0000209.
NR 30
TC 2
Z9 2
U1 1
U2 13
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
EI 1098-5336
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD NOV
PY 2014
VL 80
IS 21
BP 6685
EP 6693
DI 10.1128/AEM.02155-14
PG 9
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA AS3FA
UT WOS:000344160900013
PM 25149518
ER
PT J
AU Schwadron, NA
Moebius, E
Fuselier, SA
McComas, DJ
Funsten, HO
Janzen, P
Reisenfeld, D
Kucharek, H
Lee, MA
Fairchild, K
Allegrini, F
Dayeh, M
Livadiotis, G
Reno, M
Bzowski, M
Sokol, JM
Kubiak, MA
Christian, ER
DeMajistre, R
Frisch, P
Galli, A
Wurz, P
Gruntman, M
AF Schwadron, N. A.
Moebius, E.
Fuselier, S. A.
McComas, D. J.
Funsten, H. O.
Janzen, P.
Reisenfeld, D.
Kucharek, H.
Lee, M. A.
Fairchild, K.
Allegrini, F.
Dayeh, M.
Livadiotis, G.
Reno, M.
Bzowski, M.
Sokol, J. M.
Kubiak, M. A.
Christian, E. R.
DeMajistre, R.
Frisch, P.
Galli, A.
Wurz, P.
Gruntman, M.
TI SEPARATION OF THE RIBBON FROM GLOBALLY DISTRIBUTED ENERGETIC NEUTRAL
ATOM FLUX USING THE FIRST FIVE YEARS OF IBEX OBSERVATIONS
SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
LA English
DT Article
DE Sun: heliosphere; ISM: magnetic fields
ID INTERSTELLAR-BOUNDARY-EXPLORER; PICK-UP IONS; MAGNETIC-FIELD;
SOLAR-WIND; OUTER HELIOSHEATH; VOYAGER 1; ENA FLUX; HELIOPAUSE;
HELIOSPHERE; PLASMA
AB The Interstellar Boundary Explorer (IBEX) observes the IBEX ribbon, which stretches across much of the sky observed in energetic neutral atoms (ENAs). The ribbon covers a narrow (similar to 20 degrees-50 degrees) region that is believed to be roughly perpendicular to the interstellar magnetic field. Superimposed on the IBEX ribbon is the globally distributed flux that is controlled by the processes and properties of the heliosheath. This is a second study that utilizes a previously developed technique to separate ENA emissions in the ribbon from the globally distributed flux. A transparency mask is applied over the ribbon and regions of high emissions. We then solve for the globally distributed flux using an interpolation scheme. Previously, ribbon separation techniques were applied to the first year of IBEX-Hi data at and above 0.71 keV. Here we extend the separation analysis down to 0.2 keV and to five years of IBEX data enabling first maps of the ribbon and the globally distributed flux across the full sky of ENA emissions. Our analysis shows the broadening of the ribbon peak at energies below 0.71 keV and demonstrates the apparent deformation of the ribbon in the nose and heliotail. We show global asymmetries of the heliosheath, including both deflection of the heliotail and differing widths of the lobes, in context of the direction, draping, and compression of the heliospheric magnetic field. We discuss implications of the ribbon maps for the wide array of concepts that attempt to explain the ribbon's origin. Thus, we present the five-year separation of the IBEX ribbon from the globally distributed flux in preparation for a formal IBEX data release of ribbon and globally distributed flux maps to the heliophysics community.
C1 [Schwadron, N. A.; Moebius, E.; Kucharek, H.; Lee, M. A.; Fairchild, K.] Univ New Hampshire, Durham, NH 03824 USA.
[Schwadron, N. A.; Fuselier, S. A.; Allegrini, F.; Dayeh, M.; Livadiotis, G.; Reno, M.] SW Res Inst, San Antonio, TX 78228 USA.
[McComas, D. J.; Funsten, H. O.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Janzen, P.; Reisenfeld, D.] Univ Montana, Missoula, MT 59812 USA.
[Bzowski, M.; Sokol, J. M.; Kubiak, M. A.] Polish Acad Sci, Space Res Ctr, PL-01237 Warsaw, Poland.
[Christian, E. R.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[DeMajistre, R.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
[Frisch, P.] Univ Chicago, Chicago, IL 60637 USA.
[Galli, A.; Wurz, P.] Univ Bern, Bern, Switzerland.
[Gruntman, M.] Univ So Calif, Los Angeles, CA 90089 USA.
[Schwadron, N. A.] Univ Texas San Antonio, San Antonio, TX 78228 USA.
RP Schwadron, NA (reprint author), Univ New Hampshire, Durham, NH 03824 USA.
RI Funsten, Herbert/A-5702-2015; Reisenfeld, Daniel/F-7614-2015; Gruntman,
Mike/A-5426-2008; Sokol, Justyna/K-2892-2015;
OI Funsten, Herbert/0000-0002-6817-1039; Gruntman,
Mike/0000-0002-0830-010X; Moebius, Eberhard/0000-0002-2745-6978
FU NASA's Explorer Program; Polish National Science Centre
[2012-06-M-ST9-00455]
FX We are deeply indebted to all of the outstanding people who have made
the IBEX mission possible. This work was carried out as a part of the
IBEX project, with support from NASA's Explorer Program. J.S., M.B., and
M.A.K. were supported by the Polish National Science Centre (grant
2012-06-M-ST9-00455).
NR 52
TC 22
Z9 22
U1 0
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0067-0049
EI 1538-4365
J9 ASTROPHYS J SUPPL S
JI Astrophys. J. Suppl. Ser.
PD NOV
PY 2014
VL 215
IS 1
AR 13
DI 10.1088/0067-0049/215/1/13
PG 18
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AS2YH
UT WOS:000344141800013
ER
PT J
AU Trabert, E
Beiersdorfer, P
Brickhouse, NS
Golub, L
AF Traebert, Elmar
Beiersdorfer, Peter
Brickhouse, Nancy S.
Golub, Leon
TI HIGH-RESOLUTION LABORATORY SPECTRA OF THE lambda 193 CHANNEL OF THE
ATMOSPHERIC IMAGING ASSEMBLY INSTRUMENT ON BOARD SOLAR DYNAMICS
OBSERVATORY
SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
LA English
DT Article
DE atomic data; methods: laboratory: atomic; Sun: corona; Sun: UV
radiation; techniques: spectroscopic
ID EXTREME-ULTRAVIOLET REGION; BEAM ION-TRAP; ATOMIC DATABASE;
EMISSION-LINES; GRATING SPECTROMETER; FE-VII; X-RAY; ANGSTROM; CHIANTI;
ASTROPHYSICS
AB Extreme ultraviolet spectra of C, O, F, Ne, S, Ar, Fe, and Ni have been excited in an electron beam ion trap and studied with much higher resolution than available on the Solar Dynamics Observatory (SDO) in order to ascertain the spectral composition of the SDO/Atmospheric Imaging Assembly (AIA) observations. We present our findings in the wavelength range 182-200 angstrom, which, overall, corroborate the working models of how to interpret the SDO/AIA data. We find, however, that the inclusion of a number of additional lines might improve the data interpretation.
C1 [Traebert, Elmar; Beiersdorfer, Peter] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA.
[Traebert, Elmar] Ruhr Univ Bochum, Astron Inst, D-44780 Bochum, Germany.
[Brickhouse, Nancy S.; Golub, Leon] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
RP Trabert, E (reprint author), Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA.
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Solar and Heliospherical Physics Program of the
National Aeronautics and Space Administration [NNH10AN31I]; German
Research Association (DFG) [Tr171/18, Tr171/19]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under contract
DE-AC52-07NA27344 and was supported by the Solar and Heliospherical
Physics Program of the National Aeronautics and Space Administration
under award NNH10AN31I. E.T. acknowledges support from the German
Research Association (DFG; grants Tr171/18 and Tr171/19).
NR 37
TC 4
Z9 4
U1 1
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0067-0049
EI 1538-4365
J9 ASTROPHYS J SUPPL S
JI Astrophys. J. Suppl. Ser.
PD NOV
PY 2014
VL 215
IS 1
AR 6
DI 10.1088/0067-0049/215/1/6
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AS2YH
UT WOS:000344141800006
ER
PT J
AU Titarenko, YE
Batyaev, VF
Pavlov, KV
Titarenko, AY
Rogov, VI
Zhivun, VM
Kulevoy, TV
Sobolevsky, NM
Voloshchenko, AM
Didenko, AN
Polozov, SM
Koldobsky, AB
Alekseev, PN
Fomichenko, PA
Dudnikov, AA
Nevinitsa, VA
Sedov, AA
Frolov, AA
Lubina, AS
Balanin, AL
Subbotin, SA
Subbotin, AS
Stankovskiy, AY
Van den Eynde, G
Mashnik, SG
AF Titarenko, Yu. E.
Batyaev, V. F.
Pavlov, K. V.
Titarenko, A. Yu.
Rogov, V. I.
Zhivun, V. M.
Kulevoy, T. V.
Sobolevsky, N. M.
Voloshchenko, A. M.
Didenko, A. N.
Polozov, S. M.
Koldobsky, A. B.
Alekseev, P. N.
Fomichenko, P. A.
Dudnikov, A. A.
Nevinitsa, V. A.
Sedov, A. A.
Frolov, A. A.
Lubina, A. S.
Balanin, A. L.
Subbotin, S. A.
Subbotin, A. S.
Stankovskiy, A. Yu.
Van den Eynde, G.
Mashnik, S. G.
TI Analysis of the Parameters of the Target Unit of a Molten-Salt
Subcritical Electronuclear Facility
SO ATOMIC ENERGY
LA English
DT Article
ID DEPOSITION
AB A variant of the target unit based on tungsten rods cooled by molten-salt coolant (alkali-metal fluorides) in a subcritical electronuclear facility is examined. The results of calculations of its main parameters are presented: the neutron yield, neutron spectrum on the lateral surface, top and bottom ends of the target, total energy release, specific energy release and induced activity. The calculations are performed using the three codes MCNPX 2.6B, SHIELD and KATRIN-2.5 and the codes ORIHET3 and DCHAIN-SP for calculating the changes in the radioactivity of the main units. The discrepancies in the parameters of the target unit of a subcritical electronuclear facility were determined by calculating the standard deviation factors. Apparently, the uncertainties in the computational results for the differential and integral parameters are due to the nuclear models and libraries in the programs used.
C1 [Titarenko, Yu. E.; Batyaev, V. F.; Pavlov, K. V.; Titarenko, A. Yu.; Rogov, V. I.; Zhivun, V. M.; Kulevoy, T. V.] State Sci Ctr Russian Federat, Alikhanov Inst Theoret & Expt Phys GNTs RF ITEF, Moscow, Russia.
[Sobolevsky, N. M.] Russian Acad Sci IYaI RAN, Inst Nucl Res, Moscow, Russia.
[Voloshchenko, A. M.] Russian Acad Sci IPM RAN, Inst Appl Math, Moscow, Russia.
[Didenko, A. N.; Polozov, S. M.; Koldobsky, A. B.] Natl Nucl Res Univ, Moscow Engn Phys Inst NIYaU MIFI, Moscow, Russia.
[Alekseev, P. N.; Fomichenko, P. A.; Dudnikov, A. A.; Nevinitsa, V. A.; Sedov, A. A.; Frolov, A. A.; Lubina, A. S.; Balanin, A. L.; Subbotin, S. A.; Subbotin, A. S.] Natl Res Ctr, Kurchatov Inst, Moscow, Russia.
[Stankovskiy, A. Yu.; Van den Eynde, G.] Ctr Nucl Res SCK CEN, Mol, Belgium.
[Mashnik, S. G.] LANL, Los Alamos, NM USA.
RP Titarenko, YE (reprint author), State Sci Ctr Russian Federat, Alikhanov Inst Theoret & Expt Phys GNTs RF ITEF, Moscow, Russia.
RI Balanin, Andrey/I-6896-2015; Didenko, Andrey/M-4671-2016;
OI Van den Eynde, Gert/0000-0002-4728-4456
FU Ministry of Education and Science [14.516.11.0082]; National Research
Center Kurchatov Institute [14.516.11.0082]
FX This work was performed as part of the government contract No.
14.516.11.0082 between the Ministry of Education and Science and
National Research Center Kurchatov Institute and the government contract
NNSA between the US Department of Energy and the Los Alamos National
Laboratory. We thank M. James, the expert in the MCNPX group, for
assisting in the analysis of the results obtained.
NR 20
TC 1
Z9 2
U1 0
U2 6
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1063-4258
EI 1573-8205
J9 ATOM ENERGY+
JI Atom. Energy
PD NOV
PY 2014
VL 117
IS 1
BP 19
EP 28
DI 10.1007/s10512-014-9882-4
PG 10
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS1WW
UT WOS:000344071100004
ER
PT J
AU Kang, S
Kahan, S
McDermott, J
Flann, N
Shmulevich, I
AF Kang, Seunghwa
Kahan, Simon
McDermott, Jason
Flann, Nicholas
Shmulevich, Ilya
TI Biocellion: accelerating computer simulation of multicellular biological
system models
SO BIOINFORMATICS
LA English
DT Article
ID INDUCED ANGIOGENESIS; POTTS-MODEL; CELL; MORPHOGENESIS; ENVIRONMENT;
NETWORKS
AB Motivation: Biological system behaviors are often the outcome of complex interactions among a large number of cells and their biotic and abiotic environment. Computational biologists attempt to understand, predict and manipulate biological system behavior through mathematical modeling and computer simulation. Discrete agent-based modeling (in combination with high-resolution grids to model the extracellular environment) is a popular approach for building biological system models. However, the computational complexity of this approach forces computational biologists to resort to coarser resolution approaches to simulate large biological systems. High-performance parallel computers have the potential to address the computing challenge, but writing efficient software for parallel computers is difficult and time-consuming.
Results: We have developed Biocellion, a high-performance software framework, to solve this computing challenge using parallel computers. To support a wide range of multicellular biological system models, Biocellion asks users to provide their model specifics by filling the function body of pre-defined model routines. Using Biocellion, modelers without parallel computing expertise can efficiently exploit parallel computers with less effort than writing sequential programs from scratch. We simulate cell sorting, microbial patterning and a bacterial system in soil aggregate as case studies.
C1 [Kang, Seunghwa; McDermott, Jason] Pacific NW Natl Lab, Computat Biol & Bioinformat Grp, Richland, WA 99354 USA.
[Kahan, Simon] Pacific NW Natl Lab, High Performance Comp Grp, Richland, WA 99354 USA.
[Flann, Nicholas] Utah State Univ, Dept Comp Sci, Logan, UT 84322 USA.
[Shmulevich, Ilya] Inst Syst Biol, Seattle, WA 98109 USA.
RP Kang, S (reprint author), Pacific NW Natl Lab, Computat Biol & Bioinformat Grp, Richland, WA 99354 USA.
FU Extreme Scale Computing Initiative; Fundamental and Computational
Sciences Directorate; Technology Investment Program, Laboratory Directed
Research and Development Program at Pacific Northwest National
Laboratory (PNNL); DOE [DE-ACO5-76RLO 1830]
FX Support for this research was provided by the Extreme Scale Computing
Initiative, the Fundamental and Computational Sciences Directorate and
the Technology Investment Program, as part of the Laboratory Directed
Research and Development Program at Pacific Northwest National
Laboratory (PNNL). Portions of this work were conducted using PNNL
Institutional Computing at PNNL. PNNL is operated by Battelle for DOE
under contract DE-ACO5-76RLO 1830.
NR 38
TC 6
Z9 6
U1 0
U2 9
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 1367-4803
EI 1460-2059
J9 BIOINFORMATICS
JI Bioinformatics
PD NOV 1
PY 2014
VL 30
IS 21
BP 3101
EP 3108
DI 10.1093/bioinformatics/btu498
PG 8
WC Biochemical Research Methods; Biotechnology & Applied Microbiology;
Computer Science, Interdisciplinary Applications; Mathematical &
Computational Biology; Statistics & Probability
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Computer Science; Mathematical & Computational Biology; Mathematics
GA AT0SG
UT WOS:000344644600015
PM 25064572
ER
PT J
AU Yang, Y
Zhang, Y
Sun, CJ
Li, XS
Zhang, W
Ma, XH
Ren, Y
Zhang, X
AF Yang, Ying
Zhang, Ying
Sun, Cheng Jun
Li, Xinsong
Zhang, Wen
Ma, Xiaohui
Ren, Yang
Zhang, Xin
TI Heterobimetallic Metal-Organic Framework as a Precursor to Prepare a
Nickel/Nanoporous Carbon Composite Catalyst for 4-Nitrophenol Reduction
SO CHEMCATCHEM
LA English
DT Article
DE metal-organic frameworks; mesoporous materials; nickel; pyrolysis;
reduction
ID RAY-ABSORPTION SPECTROSCOPY; ORDERED MESOPOROUS CARBON; FACILE ROUTE
FABRICATION; NANOPOROUS CARBONS; DIRECT CARBONIZATION; POROUS CARBON;
SURFACE-AREA; NANOPARTICLES; NANOTUBES
AB Nickel/nanoporous carbon (Ni/NPC) composites are facilely prepared by direct pyrolysis of nonporous heterobimetallic zinc-nickel-terephthalate frameworks (Zn1-xNixMOF, x approximate to 0-1, MOF= metal-organic framework) at 1223 K in situ. Tailoring the Ni/Zn ratio creates densely populated and small Ni nanocrystals (Ni NCs) while maintaining sufficient porosity and surface area in the final product, which exhibits the largest activity factor (9.2 s(-1)g(-1)) and excellent stability toward 4-nitrophenol reduction.
C1 [Yang, Ying; Zhang, Ying; Li, Xinsong; Zhang, Wen; Ma, Xiaohui; Zhang, Xin] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China.
[Sun, Cheng Jun; Ren, Yang] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
RP Yang, Y (reprint author), China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China.
EM catalyticscience@163.com; zhangxin@cup.edu.cn
FU National Natural Science Foundation of China [21303229, 21173269];
Ministry of Science and Technology of China [2011BAK15B05]; Science
Foundation of China University of Petroleum, Beijing [2462013YJRC018];
U.S. DOE [DE-AC02-06CH11357]; Shanghai Synchrotron Radiation Facility
[13SRBL14B14717]
FX Financial support for this research work from the National Natural
Science Foundation of China (21303229, 21173269), the Ministry of
Science and Technology of China (No. 2011BAK15B05), and the Science
Foundation of China University of Petroleum, Beijing (2462013YJRC018) is
acknowledged. PNC/XSD facilities at the Advanced Photon Source, and
research at these facilities, was 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, supported by the U.S. DOE under
Contract No. DE-AC02-06CH11357, and the use of the Shanghai Synchrotron
Radiation Facility with the support of the proposal (13SRBL14B14717) are
also acknowledged.
NR 39
TC 7
Z9 7
U1 18
U2 96
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1867-3880
EI 1867-3899
J9 CHEMCATCHEM
JI ChemCatChem
PD NOV
PY 2014
VL 6
IS 11
BP 3084
EP 3090
DI 10.1002/cctc.201402607
PG 7
WC Chemistry, Physical
SC Chemistry
GA AS5SW
UT WOS:000344330800009
ER
PT J
AU Kim, JH
Kwon, G
Chun, H
Kim, YT
AF Kim, Jun-Hyuk
Kwon, Gihan
Chun, Hohwan
Kim, Yong-Tae
TI Enhancement of Activity and Durability through Cr Doping of TiO2
Supports in Pt Electrocatalysts for Oxygen Reduction Reactions
SO CHEMCATCHEM
LA English
DT Article
DE chromium; doping; fuel cells; platinum; titanates
ID MEMBRANE FUEL-CELLS; RAY-ABSORPTION SPECTROSCOPY; DOPED TIO2;
ELECTROCHEMICAL CHARACTERIZATION; PHOTOCATALYTIC ACTIVITY; CATALYST
SUPPORT; DISK ELECTRODE; METAL-SURFACES; NANOPARTICLES; CARBON
AB A challenging issue in the commercialization of fuel cells is to improve the kinetics of the sluggish oxygen reduction reaction (ORR) and durability of the cathode electrocatalyst under corrosive ORR conditions. In this paper, we report a promising approach to address these two major issues by Cr doping of TiO2 supports in Pt-based electrocatalysts. It was clearly revealed that Cr doping led to a marked enhancement of ORR kinetics, which was attributed to the compressive strain in the Pt lattice as well as the increased electronic conductivity of the Cr-TiO2 supports. Furthermore, Pt/Cr-TiO2 demonstrated a far superior durability to that of conventional Pt/C, which was assessed by accelerated durability tests (ADT) and in situ X-ray absorption near-edge structure studies. The specific activity of Pt/C decreased by 43% after the ADT (141 mu A cm(-2) and 82 mu A cm(-2) before and after ADT, respectively), whereas that of Pt/Cr-TiO2 was merely reduced by 13% (472 mu A cm(-2) and 409 mu A cm(-2)).
C1 [Kim, Jun-Hyuk; Kim, Yong-Tae] Pusan Natl Univ, Dept Energy Syst, Pusan 609735, South Korea.
[Kwon, Gihan] Argonne Natl Lab, Div Chem Sci, Argonne, IL 60439 USA.
[Chun, Hohwan] Pusan Natl Univ, GCRC SOP, Pusan 609735, South Korea.
RP Kim, YT (reprint author), Pusan Natl Univ, Dept Energy Syst, Pusan 609735, South Korea.
EM yongtae@pusan.ac.kr
RI Kim, Jun-Hyuk/G-7245-2011
OI Kim, Jun-Hyuk/0000-0003-4114-6666
FU National Research Foundation of Korea (NRF) - Korean government (MEST)
[2012-0008830, NRF-2012K2A1A2032856, 2013M1A8A1040703]; National
Research Foundation of Korea (NRF) - Korean government (MEST) (GCRC-SOP)
FX This work was supported by a National Research Foundation of Korea (NRF)
grant funded by the Korean government (MEST) (2012-0008830,
NRF-2012K2A1A2032856, 2013M1A8A1040703, and GCRC-SOP).
NR 67
TC 3
Z9 3
U1 5
U2 48
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA POSTFACH 101161, 69451 WEINHEIM, GERMANY
SN 1867-3880
EI 1867-3899
J9 CHEMCATCHEM
JI ChemCatChem
PD NOV
PY 2014
VL 6
IS 11
BP 3239
EP 3245
DI 10.1002/cctc.201402466
PG 7
WC Chemistry, Physical
SC Chemistry
GA AS5SW
UT WOS:000344330800031
ER
PT J
AU Balbus, JM
Greenblatt, JB
Chari, R
Millstein, D
Ebi, KL
AF Balbus, John M.
Greenblatt, Jeffery B.
Chari, Ramya
Millstein, Dev
Ebi, Kristie L.
TI A wedge-based approach to estimating health co-benefits of climate
change mitigation activities in the United States
SO CLIMATIC CHANGE
LA English
DT Article
AB While it has been recognized that actions reducing greenhouse gas (GHG) emissions can have significant positive and negative impacts on human health through reductions in ambient fine particulate matter (PM2.5) concentrations, these impacts are rarely taken into account when analyzing specific policies. This study presents a new framework for estimating the change in health outcomes resulting from implementation of specific carbon dioxide (CO2) reduction activities, allowing comparison of different sectors and options for climate mitigation activities. Our estimates suggest that in the year 2020, the reductions in adverse health outcomes from lessened exposure to PM2.5 would yield economic benefits in the range of $6 to $30 billion (in 2008 USD), depending on the specific activity. This equates to between $40 and $198 per metric ton of CO2 in health benefits. Specific climate interventions will vary in the health co-benefits they provide as well as in potential harms that may result from their implementation. Rigorous assessment of these health impacts is essential for guiding policy decisions as efforts to reduce GHG emissions increase in scope and intensity.
C1 [Balbus, John M.] NIEHS, Bethesda, MD 20892 USA.
[Greenblatt, Jeffery B.; Millstein, Dev] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Chari, Ramya] RAND Corp, Santa Monica, CA USA.
[Ebi, Kristie L.] Univ Washington, Seattle, WA 98195 USA.
RP Balbus, JM (reprint author), NIEHS, 31 Ctr Dr,Room B1C02, Bethesda, MD 20892 USA.
EM john.balbus@nih.gov
FU U.S. Department of Energy [DE-AC02-05CH11231]
FX This research was supported in part by Laboratory Directed Research and
Development funding at the Lawrence Berkeley National Laboratory (LBNL),
which is operated for U.S. Department of Energy under Contract Grant No.
DE-AC02-05CH11231.
NR 19
TC 2
Z9 2
U1 3
U2 20
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0165-0009
EI 1573-1480
J9 CLIMATIC CHANGE
JI Clim. Change
PD NOV
PY 2014
VL 127
IS 2
BP 199
EP 210
DI 10.1007/s10584-014-1262-5
PG 12
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA AS6QG
UT WOS:000344387000004
ER
PT J
AU Darling, RM
Gallagher, KG
Kowalski, JA
Ha, S
Brushett, FR
AF Darling, Robert M.
Gallagher, Kevin G.
Kowalski, Jeffrey A.
Ha, Seungbum
Brushett, Fikile R.
TI Pathways to low-cost electrochemical energy storage: a comparison of
aqueous and nonaqueous flow batteries
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID RESEARCH-AND-DEVELOPMENT; IONIC-CONDUCTIVITY; ELECTRIC VEHICLES; REDOX;
ELECTROLYTES; MEMBRANES; PERSPECTIVE; PROGRESS; COUPLES
AB Energy storage is increasingly seen as a valuable asset for electricity grids composed of high fractions of intermittent sources, such as wind power or, in developing economies, unreliable generation and transmission services. However, the potential of batteries to meet the stringent cost and durability requirements for grid applications is largely unquantified. We investigate electrochemical systems capable of economically storing energy for hours and present an analysis of the relationships among technological performance characteristics, component cost factors, and system price for established and conceptual aqueous and nonaqueous batteries. We identified potential advantages of nonaqueous flow batteries over those based on aqueous electrolytes; however, new challenging constraints burden the nonaqueous approach, including the solubility of the active material in the electrolyte. Requirements in harmony with economically effective energy storage are derived for aqueous and nonaqueous systems. The attributes of flow batteries are compared to those of aqueous and nonaqueous enclosed and hybrid (semi-flow) batteries. Flow batteries are a promising technology for reaching these challenging energy storage targets owing to their independent power and energy scaling, reliance on facile and reversible reactants, and potentially simpler manufacture as compared to established enclosed batteries such as lead-acid or lithium-ion.
C1 [Darling, Robert M.; Gallagher, Kevin G.; Kowalski, Jeffrey A.; Ha, Seungbum; Brushett, Fikile R.] Joint Ctr Energy Storage Res, Argonne, IL 60439 USA.
[Darling, Robert M.] United Technol Res Ctr, E Hartford, CT 06108 USA.
[Gallagher, Kevin G.; Ha, Seungbum] Argonne Natl Lab, Chem Sci & Engn Div, Lemont, IL 60439 USA.
[Kowalski, Jeffrey A.; Brushett, Fikile R.] MIT, Dept Chem Engn, Cambridge, MA 02139 USA.
RP Darling, RM (reprint author), Joint Ctr Energy Storage Res, Argonne, IL 60439 USA.
EM darlinrm@utrc.utc.com; kevin.gallagher@anl.gov
FU Joint Center for Energy Storage Research, 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, 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 87
TC 81
Z9 81
U1 22
U2 171
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.
PD NOV
PY 2014
VL 7
IS 11
BP 3459
EP 3477
DI 10.1039/c4ee02158d
PG 19
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA AS0NR
UT WOS:000343974700002
ER
PT J
AU Eisler, CN
Abrams, ZR
Sheldon, MT
Zhang, X
Atwater, HA
AF Eisler, Carissa N.
Abrams, Ze'ev R.
Sheldon, Matthew T.
Zhang, Xiang
Atwater, Harry A.
TI Multijunction solar cell efficiencies: effect of spectral window,
optical environment and radiative coupling
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID DETAILED BALANCE LIMIT; ENERGY-CONVERSION; SYSTEMS; PHOTOVOLTAICS
AB Solar cell efficiency is maximized through multijunction architectures that minimize carrier thermalization and increase absorption. Previous proposals suggest that the maximum efficiency for a finite number of subcells is achieved for designs that optimize for light trapping over radiative coupling. We instead show that structures with radiative coupling and back reflectors for light trapping, e.g. spectrum-splitting cells, can achieve higher conversion efficiencies. We model a compatible geometry, the polyhedral specular reflector. We analyze and experimentally verify the effects of spectral window and radiative coupling on voltage and power. Our results indicate that radiative coupling with back reflectors leads to higher efficiencies than previously studied architectures for practical multijunction architectures (i.e., <= 20 subcells).
C1 [Eisler, Carissa N.; Sheldon, Matthew T.; Atwater, Harry A.] CALTECH, Thomas J Watson Labs Appl Phys, Pasadena, CA 91125 USA.
[Abrams, Ze'ev R.; Zhang, Xiang] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Zhang, Xiang] King Abdulaziz Univ, Dept Phys, Jeddah 21589, Saudi Arabia.
[Zhang, Xiang] Univ Calif Berkeley, Kavli Energy NanoSci Inst, Berkeley, CA 94704 USA.
[Zhang, Xiang] Lawrence Berkeley Natl Lab, Berkeley, CA 94704 USA.
RP Eisler, CN (reprint author), CALTECH, Thomas J Watson Labs Appl Phys, Pasadena, CA 91125 USA.
EM haa@caltech.edu
RI Zhang, Xiang/F-6905-2011
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-SC0001293]; Department of Defense (DoD) through the
National Defense Science & Engineering Graduate Fellowship (NDSEG)
Program
FX This work is part of the 'Light-Material Interactions in Energy
Conversion' Energy Frontier Research Center funded by the U.S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
under Award Number DE-SC0001293. C. N. Eisler was supported by the
Department of Defense (DoD) through the National Defense Science &
Engineering Graduate Fellowship (NDSEG) Program. The authors wish to
thank E. Kosten and E. Warmann for invaluable discussion as well as B.
Kayes and Alta Devices for providing the GaAs cells used in this study.
NR 34
TC 9
Z9 9
U1 2
U2 26
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.
PD NOV
PY 2014
VL 7
IS 11
BP 3600
EP 3605
DI 10.1039/c4ee01060d
PG 6
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA AS0NR
UT WOS:000343974700008
ER
PT J
AU Liu, TB
DuBois, MR
DuBois, DL
Bullock, RM
AF Liu, Tianbiao
DuBois, Mary Rakowski
DuBois, Daniel L.
Bullock, R. Morris
TI Electrochemical oxidation of H-2 catalyzed by ruthenium hydride
complexes bearing P2N2 ligands with pendant amines as proton relays
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID 2ND COORDINATION SPHERE; DOT CENTER DOT; DIHYDROGEN COMPLEXES;
CRYSTAL-STRUCTURE; MOLECULAR CATALYSTS; ACTIVE-SITE; ELECTROCATALYTIC
OXIDATION; HYDROGEN OXIDATION; IRON HYDROGENASE; ORGANOMETALLIC
CHEMISTRY
AB Two Ru hydride complexes, Cp*Ru((P2N2Bn)-N-Ph)H (1-H) and Cp*Ru((Pt2N2Bn)-N-Bu)H (2-H) supported by cyclic (P2N2R')-N-R ligands (Cp* = eta(5)- C5Me5; (P2N2Bn)-N-R = 1,5-dibenzyl,-3,7-R-1,5-diaza-3,7-diphosphacyclooctane, where R = Ph or Bu-t) have been developed as electrocatalysts for oxidation of H-2 (1.0 atm, 22 degrees C). The turnover frequency of 2-H is 1.2 s(-1) at 22 degrees C (1.0 atm H-2) with an overpotential at E-cat/2 of 0.5 V in the presence of exogenous base, DBU (1,8-diazabicyclo[5.4.0] undec-7-ene), while catalysis by 1-H has a turnover frequency of 0.6 s(-1) and an overpotential of 0.6 V at Ecat/2. Addition of H2O facilitates oxidation of H-2 by 2-H and increases its turnover frequency to 1.9 s(,)(-1) while H2O slows down the catalysis by 1-H. In addition, studies of Cp* Ru(dmpm) H (where dmpm = bis(dimethylphosphino) methane), a control complex lacking pendent amines in its diphosphine ligand, confirms the critical roles of the pendant amines of the P2N2 ligands as proton relays in the oxidation of H-2.
C1 [Liu, Tianbiao; DuBois, Mary Rakowski; DuBois, Daniel L.; Bullock, R. Morris] Pacific NW Natl Lab, Ctr Mol Electrocataysis, Div Phys Sci, Richland, WA 99352 USA.
RP Liu, TB (reprint author), Pacific NW Natl Lab, Ctr Mol Electrocataysis, Div Phys Sci, POB 999,K2-57, Richland, WA 99352 USA.
EM tianbiao.liu@pnnl.gov; morris.bullock@pnnl.gov
RI Liu, Tianbiao/A-3390-2011; Bullock, R. Morris/L-6802-2016
OI Bullock, R. Morris/0000-0001-6306-4851
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Chemical Sciences, Geosciences and Biosciences; Center for Molecular
Electrocatalysis, an Energy Frontier Research Center - U.S. Department
of Energy, Office of Science, Office of Basic Energy Sciences
FX We thank the U.S. Department of Energy, Office of Basic Energy Sciences,
Division of Chemical Sciences, Geosciences and Biosciences, for
supporting initial parts of the work. Current work is supported by 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. Pacific Northwest National Laboratory
is operated by Battelle for the U.S. Department of Energy.
NR 75
TC 8
Z9 8
U1 6
U2 38
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.
PD NOV
PY 2014
VL 7
IS 11
BP 3630
EP 3639
DI 10.1039/c4ee01262c
PG 10
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA AS0NR
UT WOS:000343974700012
ER
PT J
AU Gu, Y
Wang, C
Liu, F
Chen, JH
Dyck, OE
Duscher, G
Russell, TP
AF Gu, Yu
Wang, Cheng
Liu, Feng
Chen, Jihua
Dyck, Ondrej E.
Duscher, Gerd
Russell, Thomas P.
TI Guided crystallization of P3HT in ternary blend solar cell based on
P3HT:PCPDTBT:PCBM
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID ORGANIC PHOTOVOLTAIC DEVICES; POLYMER CRYSTALLIZATION; SEMICONDUCTING
POLYMER; BANDGAP POLYMER; TANDEM POLYMER; SENSITIZATION; OPTIMIZATION;
PERFORMANCE; FILMS
AB To mimic the performance of the tandem solar cells, ternary blend solar cells with a single active layer of P3HT: PCPDTBT: PC61BM were cast from chlorobenzene and thermally annealed. By varying blending ratio, thermal annealing time and P3HT molecular weight, the device performance was enhanced relative to the binary references. To understand this, the morphology of the active layer was studied using hard and soft X-ray scattering methods in concert with bright field and energy resolved transmission electron microscopies. We found that the phase separation of the amorphous PCPDTBT and P3HT guided the formation of P3HT fibrils, resulting in a unique multi-length-scale morphology. This morphology consisted of bundles of well-defined P3HT fibrils, forming a network, imbedded in an amorphous mixture of the PCBM, PCPDTBT and P3HT. The two polymers acted independently in their specific photoactive ranges, and the sensitization of PCPDTBT benefited the cascade charge transfer. This multi-length-scale morphology was linked to the improved device performance of P3HT: PCPDTBT: PC61BM and the photophysics of the active layer.
C1 [Gu, Yu; Liu, Feng; Russell, Thomas P.] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA.
[Wang, Cheng] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Chen, Jihua] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Dyck, Ondrej E.; Duscher, Gerd] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
RP Gu, Y (reprint author), Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA.
EM russell@mail.pse.umass.edu
RI Chen, Jihua/F-1417-2011; Dyck, Ondrej/A-3294-2016; Duscher,
Gerd/G-1730-2014; Wang, Cheng/A-9815-2014; Liu, Feng/J-4361-2014
OI Chen, Jihua/0000-0001-6879-5936; Dyck, Ondrej/0000-0001-8200-9874;
Duscher, Gerd/0000-0002-2039-548X; Liu, Feng/0000-0002-5572-8512
FU Department of Energy; Energy Frontier Research Center at the University
of Massachusetts [DE-SC0001087]; Advanced Light Source; Lawrence
Berkeley National Laboratory; DOE; Office of Science; Office of Basic
Energy Sciences; Oak Ridge National Laboratory by the Division of
Scientific User Facilities, Office of Basic Energy Sciences, U.S.
Department of Energy
FX This work was supported by the Department of Energy supported Energy
Frontier Research Center at the University of Massachusetts under
contract DE-SC0001087. We thank Anthony Young for assisting P-RSoXS
measurements at 11.0.1.2, ALS, LBNL. Portions of this research were
carried out and supported by the Advanced Light Source, Lawrence
Berkeley National Laboratory, which was supported by the DOE, Office of
Science, and Office of Basic Energy Sciences. A portion of this research
was conducted at the Center for Nanophase Materials Sciences, which is
sponsored at Oak Ridge National Laboratory by the Division of Scientific
User Facilities, Office of Basic Energy Sciences, U.S. Department of
Energy. We also thank Kurashiki Research Center in Kuraray Co. Ltd,
Japan, for providing P3HT-28k.
NR 38
TC 26
Z9 26
U1 7
U2 83
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.
PD NOV
PY 2014
VL 7
IS 11
BP 3782
EP 3790
DI 10.1039/c4ee02004a
PG 9
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA AS0NR
UT WOS:000343974700028
ER
PT J
AU Burroughs, NJ
Boehm, M
Eckert, C
Mastroianni, G
Spence, EM
Yu, JF
Nixon, PJ
Appel, J
Mullineaux, CW
Bryan, SJ
AF Burroughs, Nigel J.
Boehm, Marko
Eckert, Carrie
Mastroianni, Giulia
Spence, Edward M.
Yu, Jianfeng
Nixon, Peter J.
Appel, Jens
Mullineaux, Conrad W.
Bryan, Samantha J.
TI Solar powered biohydrogen production requires specific localization of
the hydrogenase
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID SP PCC 6803; CYANOBACTERIUM SYNECHOCYSTIS PCC6803; BIDIRECTIONAL
HYDROGENASE; NDH-1 COMPLEXES; SP PCC-6803; ELECTRON-TRANSPORT; NIFE
HYDROGENASES; SUBUNIT; PROTEIN; GENE
AB Cyanobacteria contain a bidirectional [NiFe] hydrogenase which transiently produces hydrogen upon exposure of anoxic cells to light, potentially acting as a "valve" releasing excess electrons from the electron transport chain. However, its interaction with the photosynthetic electron transport chain remains unclear. By GFP-tagging the HoxF diaphorase subunit we show that the hydrogenase is thylakoid associated, comprising a population dispersed uniformly through the thylakoids and a subpopulation localized to discrete puncta in the distal thylakoid. Thylakoid localisation of both the HoxH and HoxY hydrogenase subunits is confirmed by immunogold electron microscopy. The diaphorase HoxE subunit is essential for recruitment to the dispersed thylakoid population, potentially anchoring the hydrogenase to the membrane, but aggregation to puncta occurs through a distinct HoxE-independent mechanism. Membrane association does not require NDH-1. Localization is dynamic on a scale of minutes, with anoxia and high light inducing a significant redistribution between these populations in favour of puncta. Since HoxE is essential for access to its electron donor, electron supply to the hydrogenase depends on a physiologically controlled localization, potentially offering a new avenue to enhance photosynthetic hydrogen production by exploiting localization/aggregation signals.
C1 [Burroughs, Nigel J.] Univ Warwick, Syst Biol Ctr, Coventry CV4 7AL, W Midlands, England.
[Boehm, Marko; Yu, Jianfeng; Nixon, Peter J.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England.
[Eckert, Carrie] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA.
[Eckert, Carrie] Univ Colorado, Renewable & Sustainable Energy Inst, Boulder, CO 80309 USA.
[Mastroianni, Giulia; Mullineaux, Conrad W.; Bryan, Samantha J.] Queen Mary Univ London, Sch Biol & Chem Sci, London E1 4NS, England.
[Spence, Edward M.] Kings Coll London, Div Pharmaceut Sci, London SE1 9NH, England.
[Appel, Jens] Univ Kiel, Inst Bot, D-24118 Kiel, Germany.
RP Burroughs, NJ (reprint author), Univ Warwick, Syst Biol Ctr, Coventry House, Coventry CV4 7AL, W Midlands, England.
EM samantha_bryan@hotmail.co.uk
FU BBSRC [BB/G021856/1]; U.S. DoE, Biological and Environmental Research
Program; U.S. DoE Fuel Cell Technologies Office [DE-AC36-08-GO28308];
EPSRC [EP/F00270X/1]
FX This work was supported by BBSRC Grant (BB/G021856/1) to SJB, PJN and
CWM. We acknowledge support from the U.S. DoE, Biological and
Environmental Research Program to MB, the U.S. DoE Fuel Cell
Technologies Office (contract number DE-AC36-08-GO28308) to CAE and
EPSRC (EP/F00270X/1) to MB and PJN.
NR 37
TC 3
Z9 3
U1 4
U2 30
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.
PD NOV
PY 2014
VL 7
IS 11
BP 3791
EP 3800
DI 10.1039/c4ee02502d
PG 10
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA AS0NR
UT WOS:000343974700029
PM 26339289
ER
PT J
AU Steinzig, M
Upshaw, D
Rasty, J
AF Steinzig, M.
Upshaw, D.
Rasty, J.
TI Influence of Drilling Parameters on the Accuracy of Hole-drilling
Residual Stress Measurements
SO EXPERIMENTAL MECHANICS
LA English
DT Article
DE Residual stress; Residual stress measurement; Centre hole drilling
method; ESPI
ID LASER SPECKLE INTERFEROMETRY
AB Multiple measurements using the hole drilling method were made in samples with a "known" state of residual stress. Drilling parameters were independently varied (bit rotation speed, bit diameter, and hole depth) to determine the effect on accuracy and repeatability. The study showed that accurate results can be achieved without ultra-high drill rotation speeds and that, in aluminum and stainless steel, speeds over 5 krpm and 10 krpm (respectively) were sufficient. Inaccuracies were evident in the stainless steel at speeds below 10 krpm and were attributed to non-circular holes, which may have been the result of bit vibration. There were no significant trends associated with altering the hole depth and only a slight trend associated with bit diameter variation.
C1 [Steinzig, M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Upshaw, D.; Rasty, J.] Texas Tech Univ, ME Dept, Lubbock, TX 79409 USA.
RP Steinzig, M (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM dupshaw@slb.com
OI Upshaw, David/0000-0003-1440-3380
NR 15
TC 2
Z9 2
U1 0
U2 22
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0014-4851
EI 1741-2765
J9 EXP MECH
JI Exp. Mech.
PD NOV
PY 2014
VL 54
IS 9
BP 1537
EP 1543
DI 10.1007/s11340-014-9923-x
PG 7
WC Materials Science, Multidisciplinary; Mechanics; Materials Science,
Characterization & Testing
SC Materials Science; Mechanics
GA AS3BC
UT WOS:000344149800004
ER
PT J
AU Xiong, Y
Coradetti, ST
Li, X
Gritsenko, MA
Clauss, T
Petyuk, V
Camp, D
Smith, R
Cate, JHD
Yang, F
Glass, NL
AF Xiong, Yi
Coradetti, Samuel T.
Li, Xin
Gritsenko, Marina A.
Clauss, Therese
Petyuk, Vlad
Camp, David
Smith, Richard
Cate, Jamie H. D.
Yang, Feng
Glass, N. Louise
TI The proteome and phosphoproteome of Neurospora crassa in response to
cellulose, sucrose and carbon starvation
SO FUNGAL GENETICS AND BIOLOGY
LA English
DT Article
DE Neurospora crassa; Proteome; Phosphoproteome; Cellulase; Carbon
starvation; Plant biomass
ID JECORINA TRICHODERMA-REESEI; CELL-GROWTH CONTROL; GENE-EXPRESSION;
SACCHAROMYCES-CEREVISIAE; HYPOCREA-JECORINA; ASPERGILLUS-NIGER;
TRANSCRIPTIONAL REGULATOR; ENDOPLASMIC-RETICULUM; ENCODING GENES;
MESSENGER-RNA
AB Improving cellulolytic enzyme production by plant biomass degrading fungi holds great potential in reducing costs associated with production of next-generation biofuels generated from lignocellulose. How fungi sense cellulosic materials and respond by secreting enzymes has mainly been examined by assessing function of transcriptional regulators and via transcriptional profiling. Here, we obtained global proteomic and phosphoproteomic profiles of the plant biomass degrading filamentous fungus Neurospora crassa grown on different carbon sources, i.e. sucrose, no carbon, and cellulose, by performing isobaric tags for relative and absolute quantification (iTRAQ)-based LC-MS/MS analyses. A comparison between proteomes and transcriptomes under identical carbon conditions suggests that extensive post-transcriptional regulation occurs in N. crassa in response to exposure to cellulosic material. Several hundred amino acid residues with differential phosphorylation levels on crystalline cellulose (Avicel) or carbon-free medium vs sucrose medium were identified, including phosphorylation sites in a major transcriptional activator for cellulase genes, CLRI, as well as a cellobionic acid transporter, CBTI. Mutation of phosphorylation sites on CLR1 did not have a major effect on transactivation of cellulase production, while mutation of phosphorylation sites in CBT1 increased its transporting capacity. Our data provides rich information at both the protein and phosphorylation levels of the early cellular responses to carbon starvation and cellulosic induction and aids in a greater understanding of the underlying post-transcriptional regulatory mechanisms in filamentous fungi. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Xiong, Yi; Coradetti, Samuel T.; Glass, N. Louise] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA.
[Gritsenko, Marina A.; Clauss, Therese; Petyuk, Vlad; Camp, David; Smith, Richard; Yang, Feng] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Li, Xin] Univ Calif Berkeley, Calif Inst Quantitat Biosci, Berkeley, CA 94720 USA.
[Cate, Jamie H. D.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Cate, Jamie H. D.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
RP Glass, NL (reprint author), Univ Calif Berkeley, Dept Plant & Microbial Biol, 341 Koshland Hall, Berkeley, CA 94720 USA.
EM Lglass@berkeley.edu
OI Petyuk, Vladislav/0000-0003-4076-151X
FU Energy Biosciences Institute; U.S. Department of Energy (DOE) Office of
Biological and Environmental Research (OBER) Pan-omics program at
Pacific Northwest National Laboratory (PNNL); DOE [DE-AC05-76RL01830];
[P41GM103493]
FX This work was funded by Grants from the Energy Biosciences Institute to
N.L.G. and to J.H.D.C. The authors also acknowledge the partial funding
support from P41GM103493 (to R.D.S.) for the proteomics and
phosphoproteomics analyses. Portions of this project were supported by
the U.S. Department of Energy (DOE) Office of Biological and
Environmental Research (OBER) Pan-omics program at Pacific Northwest
National Laboratory (PNNL) and performed in the Environmental Molecular
Sciences Laboratory (EMSL), a U.S. Department of Energy (DOE) OBER
national scientific user facility located at PNNL in Richland,
Washington. PNNL is a multi-program national laboratory operated by
Battelle Memorial Institute for the DOE under Contract
DE-AC05-76RL01830.
NR 68
TC 18
Z9 20
U1 6
U2 50
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1087-1845
EI 1096-0937
J9 FUNGAL GENET BIOL
JI Fungal Genet. Biol.
PD NOV
PY 2014
VL 72
SI SI
BP 21
EP 33
DI 10.1016/j.fgb.2014.05.005
PG 13
WC Genetics & Heredity; Mycology
SC Genetics & Heredity; Mycology
GA AS3WU
UT WOS:000344206800004
PM 24881580
ER
PT J
AU Ohm, RA
Riley, R
Salamov, A
Min, B
Choi, IG
Grigoriev, IV
AF Ohm, Robin A.
Riley, Robert
Salamov, Asaf
Min, Byoungnam
Choi, In-Geol
Grigoriev, Igor V.
TI Genomics of wood-degrading fungi
SO FUNGAL GENETICS AND BIOLOGY
LA English
DT Article
DE Fungal genomics; Agaricomycetes; Wood decay; Sequencing; Comparative
genomics; Lignocellulose degradation
ID HYGROMYCIN-B RESISTANCE; SCHIZOPHYLLUM-COMMUNE; PHANEROCHAETE-CARNOSA;
COPRINOPSIS-CINEREA; OMPHALOTUS-OLEARIUS; MUSHROOM FORMATION;
ARMILLARIA-MELLEA; MASS-SPECTROMETRY; ENZYME-ACTIVITY; DECAY FUNGI
AB Woody plants convert the energy of the sun into lignocellulosic biomass, which is an abundant substrate for bioenergy production. Fungi, especially wood decayers from the class Agaricomycetes, have evolved ways to degrade lignocellulose into its monomeric constituents, and understanding this process may facilitate the development of biofuels. Over the past decade genomics has become a powerful tool to study the Agaricomycetes. In 2004 the first sequenced genome of the white rot fungus Phanerochaete chrysosporium revealed a rich catalog of lignocellulolytic enzymes. In the decade that followed the number of genomes of Agaricomycetes grew to more than 75 and revealed a diversity of wood-decaying strategies. New technologies for high-throughput functional genomics are now needed to further study these organisms. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Ohm, Robin A.; Riley, Robert; Salamov, Asaf; Min, Byoungnam; Choi, In-Geol; Grigoriev, Igor V.] US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA.
[Min, Byoungnam; Choi, In-Geol] Korea Univ, Computat & Synthet Biol Lab, Coll Life Sci & Biotechnol, Seoul 136713, South Korea.
RP Ohm, RA (reprint author), US DOE, Joint Genome Inst, 2800 Mitchell Dr, Walnut Creek, CA 94598 USA.
EM raohm@lbl.gov; ivgrigoriev@lbl.gov
RI Choi, In-Geol/F-3152-2013; Ohm, Robin/I-6689-2016
FU Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]
FX The work conducted by the U.S. Department of Energy Joint Genome
Institute is supported by the Office of Science of the U.S. Department
of Energy under Contract No. DE-AC02-05CH11231.
NR 91
TC 20
Z9 22
U1 5
U2 64
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1087-1845
EI 1096-0937
J9 FUNGAL GENET BIOL
JI Fungal Genet. Biol.
PD NOV
PY 2014
VL 72
SI SI
BP 82
EP 90
DI 10.1016/j.fgb.2014.05.001
PG 9
WC Genetics & Heredity; Mycology
SC Genetics & Heredity; Mycology
GA AS3WU
UT WOS:000344206800009
PM 24853079
ER
PT J
AU Qu, Y
Feng, J
Deng, S
Cao, L
Zhang, QB
Zhao, R
Zhang, ZR
Jiang, YX
Zink, EM
Baker, SE
Lipton, MS
Pasa-Tolic, L
Hu, JZ
Wu, S
AF Qu, Yi
Feng, Ju
Deng, Shuang
Cao, Li
Zhang, Qibin
Zhao, Rui
Zhang, Zhaorui
Jiang, Yuxuan
Zink, Erika M.
Baker, Scott E.
Lipton, Mary S.
Pasa-Tolic, Ljiljana
Hu, Jian Zhi
Wu, Si
TI Structural analysis of N- and O-glycans using ZIC-HILIC/dialysis coupled
to NMR detection
SO FUNGAL GENETICS AND BIOLOGY
LA English
DT Article
DE ZIC-HILIC; Dialysis; Glycan; NMR; Secretome; A. niger
ID ASPERGILLUS-NIGER; PROTEIN GLYCOSYLATION; POSTTRANSLATIONAL
MODIFICATIONS; GLYCOPROTEIN STRUCTURE; H-1-NMR SPECTROSCOPY; LINKED
GLYCOPEPTIDE; PROTEOMIC ANALYSIS; OLIGOSACCHARIDES; CHROMATOGRAPHY;
SEPARATION
AB Protein glycosylation, an important and complex post-translational modification (PTM), is involved in various biological processes, including the receptor-ligand and cell-cell interaction, and plays a crucial role in many biological functions. However, little is known about the glycan structures of important biological complex samples, and the conventional glycan enrichment strategy (i.e., size-exclusion column [SEC] separation) prior to nuclear magnetic resonance (NMR) detection is time-consuming and tedious. In this study, we developed a glycan enrichment strategy that couples Zwitterionic hydrophilic interaction liquid chromatography (ZIC-HILIC) with dialysis to enrich the glycans from the pronase E digests of RNase B, followed by NMR analysis of the glycoconjugate. Our results suggest that the ZIC-HILIC enrichment coupled with dialysis is a simple, fast, and efficient sample preparation approach. The approach was thus applied to analysis of a biological complex sample, the pronase E digest of the secreted proteins from the fungus Aspergillus niger. The NMR spectra revealed that the secreted proteins from A. niger contain both N-linked glycans with a high-mannose core similar to the structure of the glycan from RNase B, and O-linked glycans bearing mannose and glucose with 1 -> 3 and 1 -> 6 linkages. In all, our study provides compelling evidence that ZIC-HILIC separation coupled with dialysis is very effective and accessible in preparing glycans for the downstream NMR analysis, which could greatly facilitate the future NMR-based glycoproteomics research. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Qu, Yi; Feng, Ju; Cao, Li; Zhang, Qibin; Zink, Erika M.; Lipton, Mary S.; Hu, Jian Zhi] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
[Zhao, Rui; Zhang, Zhaorui; Jiang, Yuxuan; Baker, Scott E.; Pasa-Tolic, Ljiljana; Wu, Si] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Deng, Shuang] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
RP Wu, S (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, POB 999,MS K8-98, Richland, WA 99352 USA.
EM Si.Wu@pnnl.gov
RI Hu, Jian Zhi/F-7126-2012; Zhang, Zhaorui/C-3478-2016; Lipton,
Mary/H-3913-2012;
OI Zhang, Zhaorui/0000-0001-7406-0370; Feng, Ju/0000-0001-5251-2401
FU EMSL intramural research projects; EMSL capability development projects;
U.S. Department of Energy Office of Biological and Environmental
Research (DOE-BER) Genome Sciences Program under the Pan-omics Project;
National Institute of Environmental Health Sciences of the National
Institutes of Health (NIH) [R01ES022176]; DOE-BER; DOE
[DE-AC05-76RL01830]
FX We thank Dr. Ziyu Dai for providing relevant protocols. We also thank
anonymous reviewers for their helpful comments to improve the
manuscript. Portions of this work were supported by funds from EMSL
intramural research projects and EMSL capability development projects,
the U.S. Department of Energy Office of Biological and Environmental
Research (DOE-BER) Genome Sciences Program under the Pan-omics Project,
and the National Institute of Environmental Health Sciences of the
National Institutes of Health (NIH) under Award Number R01ES022176. The
work was performed at EMSL, a national scientific user facility
sponsored by DOE-BER and located at Pacific Northwest National
Laboratory (PNNL). PNNL is a multi-program national laboratory operated
by Battelle for DOE under Contract DE-AC05-76RL01830.
NR 51
TC 3
Z9 3
U1 2
U2 30
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1087-1845
EI 1096-0937
J9 FUNGAL GENET BIOL
JI Fungal Genet. Biol.
PD NOV
PY 2014
VL 72
SI SI
BP 207
EP 215
DI 10.1016/j.fgb.2014.08.001
PG 9
WC Genetics & Heredity; Mycology
SC Genetics & Heredity; Mycology
GA AS3WU
UT WOS:000344206800023
PM 25117693
ER
PT J
AU Sabau, AS
Ohriner, EK
Kiggans, J
Schaich, CR
Ueda, Y
Harper, DC
Katoh, Y
Snead, LL
AF Sabau, Adrian S.
Ohriner, Evan K.
Kiggans, Jim
Schaich, Charles R.
Ueda, Yoshio
Harper, David C.
Katoh, Yutai
Snead, Lance L.
TI HIGH-HEAT-FLUX TESTING OF IRRADIATED TUNGSTEN-BASED MATERIALS FOR FUSION
APPLICATIONS USING INFRARED PLASMA ARC LAMPS
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article
DE high-heat-flux testing; infrared plasma arc lamp; plasma-facing material
ID NEUTRON-IRRADIATION; TEMPERATURE; METALS; TRANSIENT; BEHAVIOR; DIVERTOR;
ALLOYS; NICKEL
AB Testing of advanced materials and component mockups under prototypical fusion high-heat-flux conditions, while historically a mainstay of fusion research, has proved challenging, especially for irradiated materials. A new high-heat-flux-testing (HHFT) facility based on water-wall plasma arc lamps (PALs) is now introduced for materials and small-component testing. Two PAL systems, utilizing a 12 000 degrees C plasma arc contained in a quartz tube cooled by a spiral water flow over the inside tube surface, provide maximum incident heat fluxes of 4.2 and 27 MW/m(2) over areas of 9 X 12 and 1 x 10 cm(2), respectively.
This paper will present the overall design and implementation of a PAL-based irradiated material target station (IMTS). The IMTS is primarily designed for testing the effects of heat flux or thermal cycling on material coupons of interest, such as those for plasma-facing components. Temperature results are shown for thermal cycling under HHFT of tungsten coupon specimens that were neutron irradiated in HFIR. Radiological surveys indicated minimal contamination of the 36- x 36- x 18-cm test section, demonstrating the capability of the new facility to handle irradiated specimens at high temperature.
C1 [Sabau, Adrian S.; Ohriner, Evan K.; Kiggans, Jim; Harper, David C.; Katoh, Yutai; Snead, Lance L.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Schaich, Charles R.] Oak Ridge Natl Lab, Energy & Transportat Sci Div, Oak Ridge, TN 37831 USA.
[Ueda, Yoshio] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan.
RP Sabau, AS (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
EM sabaua@ornl.gov
RI Sabau, Adrian/B-9571-2008; kiggans, james/E-1588-2017
OI Sabau, Adrian/0000-0003-3088-6474; kiggans, james/0000-0001-5056-665X
FU Office of Fusion Energy Sciences, U.S. Department of Energy under
UT-Battelle, LLC [DE-AC05-00OR22725]; "Technological Assessment of
Plasma Facing Components for DEMO Reactors" Japan/United States Fusion
Research joint project
FX This work was supported by the Office of Fusion Energy Sciences, U.S.
Department of Energy under contract DE-AC05-00OR22725 with UT-Battelle,
LLC, and the "Technological Assessment of Plasma Facing Components for
DEMO Reactors" Japan/United States Fusion Research joint project. The
authors would like to thank M. Rieth and J. Reiser of Karlsruhe
Institute of Technology, Germany, for providing the tungsten specimens
and M. A. Williams of ORNL for safety considerations related to the
neutron-irradiated materials and S. Curlin of ORNL for taking the
micrographs.
NR 32
TC 0
Z9 0
U1 1
U2 10
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
EI 1943-7641
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD NOV
PY 2014
VL 66
IS 3
BP 394
EP 404
PG 11
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS0FW
UT WOS:000343954500003
ER
PT J
AU Alexander, WG
Doering, DT
Hittinger, CT
AF Alexander, William G.
Doering, Drew T.
Hittinger, Chris Todd
TI High-Efficiency Genome Editing and Allele Replacement in Prototrophic
and Wild Strains of Saccharomyces
SO GENETICS
LA English
DT Article
ID SITE-DIRECTED MUTAGENESIS; VIRUS THYMIDINE KINASE; DOUBLE-STRAND BREAKS;
NEUROSPORA-CRASSA; BUDDING YEAST; IN-VIVO; DEOXYRIBONUCLEIC ACID; GENE
DISRUPTION; HOST STRAINS; CEREVISIAE
AB Current genome editing techniques available for Saccharomyces yeast species rely on auxotrophic markers, limiting their use in wild and industrial strains and species. Taking advantage of the ancient loss of thymidine kinase in the fungal kingdom, we have developed the herpes simplex virus thymidine kinase gene as a selectable and counterselectable marker that forms the core of novel genome engineering tools called the Haploid Engineering and Replacement Protocol (HERP) cassettes. Here we show that these cassettes allow a researcher to rapidly generate heterogeneous populations of cells with thousands of independent chromosomal allele replacements using mixed PCR products. We further show that the high efficiency of this approach enables the simultaneous replacement of both alleles in diploid cells. Using these new techniques, many of the most powerful yeast genetic manipulation strategies are now available in wild, industrial, and other prototrophic strains from across the diverse Saccharomyces genus.
C1 [Alexander, William G.; Doering, Drew T.; Hittinger, Chris Todd] Univ Wisconsin, Wisconsin Energy Inst, Genet Lab, Genome Ctr Wisconsin,JF Crow Inst Study Evolut, Madison, WI 53706 USA.
[Alexander, William G.; Hittinger, Chris Todd] Univ Wisconsin, DOE Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA.
[Doering, Drew T.; Hittinger, Chris Todd] Univ Wisconsin, Grad Program Cellular & Mol Biol, Madison, WI 53706 USA.
RP Hittinger, CT (reprint author), 2434 Genet Biotechnol Ctr,425-G Henry Mall, Madison, WI 53706 USA.
EM cthittinger@wisc.edu
OI Doering, Drew/0000-0003-1884-9902
FU National Science Foundation [DEB-1253634]; DOE Great Lakes Bioenergy
Research Center (DOE Office of Science) [BER DE-FC02-07ER64494];
National Human Genome Research Institute grant to the Genomic Sciences
Training Program [5T32HG002760]
FX We thank Audrey P. Gasch, Maria I. Sardi, M. B. O'Neill, EmilyClare
Baker, Christina Meihua Kuang, Jin Kang, and David Peris for beta
testing; Kayla Sylvester and Amanda Hulfachor for laboratory support;
EmilyClare Baker, Christina Meihua Kuang, and David Peris for critical
review of this manuscript; and Robert Sclafani for advice. We also thank
Jasper Rine and Oliver Zill for JRY9288, Francesca Storici and Michael
Resnick for pGSKU, and Robert Sclafani for p306-BrdU-Inc. This material
is based upon work supported by the National Science Foundation under
grant no. DEB-1253634 and funded in part by the DOE Great Lakes
Bioenergy Research Center (DOE Office of Science BER DE-FC02-07ER64494).
D.T.D. was supported by a National Human Genome Research Institute
training grant to the Genomic Sciences Training Program 5T32HG002760.
C.T.H. is a Pew Biomedical Scholar. W.G.A. and C.T.H. have, together
with the Wisconsin Alumni Research Foundation, filed a provisional
patent application describing the research contained within this
article. D.T.D. declares no conflict of interest.
NR 60
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Z9 5
U1 0
U2 6
PU GENETICS SOCIETY AMERICA
PI BETHESDA
PA 9650 ROCKVILLE AVE, BETHESDA, MD 20814 USA
SN 0016-6731
EI 1943-2631
J9 GENETICS
JI Genetics
PD NOV
PY 2014
VL 198
IS 3
BP 859
EP +
DI 10.1534/genetics.114.170118
PG 24
WC Genetics & Heredity
SC Genetics & Heredity
GA AS6KT
UT WOS:000344373300005
PM 25209147
ER
PT J
AU Krishnan, B
Thomas, SE
Yan, RH
Yamada, H
Zhulin, IB
McKee, BD
AF Krishnan, Badri
Thomas, Sharon E.
Yan, Rihui
Yamada, Hirotsugu
Zhulin, Igor B.
McKee, Bruce D.
TI Sisters Unbound Is Required for Meiotic Centromeric Cohesion in
Drosophila melanogaster
SO GENETICS
LA English
DT Article
ID CHROMOSOME SEGREGATION; CHROMATID COHESION; SYNAPTONEMAL COMPLEX;
STRUCTURE PREDICTION; SECONDARY STRUCTURE; MOLECULAR-BIOLOGY;
PROTEIN-STRUCTURE; AXIAL ELEMENT; MEIOSIS-I; OOCYTES
AB Regular meiotic chromosome segregation requires sister centromeres to mono-orient (orient to the same pole) during the first meiotic division (meiosis I) when homologous chromosomes segregate, and to bi-orient (orient to opposite poles) during the second meiotic division (meiosis II) when sister chromatids segregate. Both orientation patterns require cohesion between sister centromeres, which is established during meiotic DNA replication and persists until anaphase of meiosis II. Meiotic cohesion is mediated by a conserved four-protein complex called cohesin that includes two structural maintenance of chromosomes (SMC) subunits (SMC1 and SMC3) and two non-SMC subunits. In Drosophila melanogaster, however, the meiotic cohesion apparatus has not been fully characterized and the non-SMC subunits have not been identified. We have identified a novel Drosophila gene called sisters unbound (sunn), which is required for stable sister chromatid cohesion throughout meiosis. sunn mutations disrupt centromere cohesion during prophase I and cause high frequencies of non-disjunction (NDJ) at both meiotic divisions in both sexes. SUNN co-localizes at centromeres with the cohesion proteins SMC1 and SOLO in both sexes and is necessary for the recruitment of both proteins to centromeres. Although SUNN lacks sequence homology to cohesins, bioinformatic analysis indicates that SUNN may be a structural homolog of the non-SMC cohesin subunit stromalin (SA), suggesting that SUNN may serve as a meiosis-specific cohesin subunit. In conclusion, our data show that SUNN is an essential meiosis-specific Drosophila cohesion protein.
C1 [Krishnan, Badri; Thomas, Sharon E.; Yan, Rihui; Yamada, Hirotsugu; McKee, Bruce D.] Univ Tennessee, Dept Biochem & Cellular & Mol Biol, Knoxville, TN 37996 USA.
[Zhulin, Igor B.; McKee, Bruce D.] Univ Tennessee, Genome Sci & Technol Program, Knoxville, TN 37996 USA.
[Zhulin, Igor B.] Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA.
[Zhulin, Igor B.] Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA.
RP McKee, BD (reprint author), Univ Tennessee, Dept Biochem & Cellular & Mol Biol, E202 Walters Life Sci Bldg, Knoxville, TN 37996 USA.
EM bdmckee@utk.edu
FU National Institute of General Medical Sciences [R01 GM040489];
University of Tennessee; Office of Research Administration, College of
Arts and Sciences; Department of Biochemistry and Cellular and Molecular
Biology
FX We thank B. Wakimoto, C. Zuker, Terry Orr-Weaver, Kim McKim, and the
Bloomington Stock Center, Indiana University, for providing Drosophila
stocks; R. Scott Hawley, Mary Lily, and Sharon Bickel for providing
antibodies; Drosophila Genomics Resource Center (DGRC) and Roger Tsien
for providing the pPVW (1093) and pPWV (1094) Venus tag containing
P-element vector; and Joseph A. May at the Molecular Biology Resource
facility, University of Tennessee, Knoxville for performing DNA
sequencing. Funding for this work was provided by the National Institute
of General Medical Sciences, grant no. R01 GM040489, and by a grant from
the University of Tennessee jointly funded by the Office of Research
Administration, College of Arts and Sciences and Department of
Biochemistry and Cellular and Molecular Biology.
NR 65
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Z9 8
U1 1
U2 5
PU GENETICS SOCIETY AMERICA
PI BETHESDA
PA 9650 ROCKVILLE AVE, BETHESDA, MD 20814 USA
SN 0016-6731
EI 1943-2631
J9 GENETICS
JI Genetics
PD NOV
PY 2014
VL 198
IS 3
BP 947
EP +
DI 10.1534/genetics.114.166009
PG 38
WC Genetics & Heredity
SC Genetics & Heredity
GA AS6KT
UT WOS:000344373300012
PM 25194162
ER
PT J
AU Macpherson, GL
Capo, RC
Stewart, BW
Phan, TT
Schroeder, K
Hammack, RW
AF Macpherson, G. L.
Capo, R. C.
Stewart, B. W.
Phan, T. T.
Schroeder, K.
Hammack, R. W.
TI Temperature-dependent Li isotope ratios in Appalachian Plateau and Gulf
Coast Sedimentary Basin saline water
SO GEOFLUIDS
LA English
DT Article
DE Appalachian Plateau; diagenesis; fluid transport; formation water; Gulf
Coast Sedimentary Basin; lithium; produced water; saline water; stable
lithium isotope ratios; water-rock reaction
ID FRIO FORMATION OLIGOCENE; KETTLEMAN NORTH-DOME; OIL-FIELD BRINES;
LITHIUM ISOTOPE; REGIONAL VARIATIONS; MACKENZIE BASIN; GEOCHEMISTRY;
SEAWATER; TEXAS; EVOLUTION
AB Lithium (Li) concentrations of produced water from unconventional (horizontally drilled and hydraulically fractured shale) and conventional gas wells in Devonian reservoirs in the Appalachian Plateau region of western Pennsylvania range from 0.6 to 17mmolkg(-1), and Li isotope ratios, expressed as in Li-7, range from +8.2 to +15 parts per thousand. Li concentrations are as high as 40mmolkg(-1) in produced waters from Plio-Pleistocene through Jurassic-aged reservoirs in the Gulf Coast Sedimentary Basin analyzed for this study, and Li-7 values range from about +4.2 to +16.6 parts per thousand. Because of charge-balance constraints and rock buffering, Li concentrations in saline waters from sedimentary basins throughout the world (including this study) are generally positively correlated with chloride (Cl), the dominant anion in these fluids. Li concentrations also vary with depth, although the extent of depth dependence differs among sedimentary basins. In general, Li concentrations are higher than expected from seawater or evaporation of seawater and therefore require water-mineral reactions that remove lithium from the minerals. Li isotope ratios in these produced waters vary inversely with temperature. However, calculations of temperature-dependent fractionation of Li-7 between average shale Li-7 (-0.7 parts per thousand) and water result in Li-7(water) that is more positive than that of most produced waters. This suggests that aqueous Li-7 may reflect transport of water from depth and/or reaction with rocks having Li-7 lighter than average shale.
C1 [Macpherson, G. L.] Univ Kansas, Dept Geol, Lawrence, KS 66045 USA.
[Capo, R. C.; Stewart, B. W.; Phan, T. T.] Univ Pittsburgh, Dept Geol & Planetary Sci, Pittsburgh, PA 15260 USA.
[Capo, R. C.; Stewart, B. W.; Phan, T. T.] Natl Energy Technol Lab Reg Univ Alliance, Pittsburgh, PA USA.
[Schroeder, K.; Hammack, R. W.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 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
OI Phan, Thai/0000-0003-2491-749X
FU National Energy Technology Laboratory's ongoing research under the RES
[DE-FE0004000]
FX This work was supported by the National Energy Technology Laboratory's
ongoing research under the RES contract DE-FE0004000. We also thank the
Geology Foundation of the University of Kansas, and the University of
Kansas Department of Geology. This work could not have been completed
without laboratory and field support from personnel from DOE-NETL, USGS,
and University of Pittsburgh. The authors thank the reviewers, J.S.
Hanor and P. Tomascak, for their detailed and insightful comments that
greatly improved this manuscript. The authors declare no conflict of
interest.
NR 73
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U1 1
U2 24
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1468-8115
EI 1468-8123
J9 GEOFLUIDS
JI Geofluids
PD NOV
PY 2014
VL 14
IS 4
BP 419
EP 429
DI 10.1111/gfl.12084
PG 11
WC Geochemistry & Geophysics; Geology
SC Geochemistry & Geophysics; Geology
GA AS5UJ
UT WOS:000344334600003
ER
PT J
AU Liu, HH
AF Liu, Hui-Hai
TI Non-Darcian flow in low-permeability media: key issues related to
geological disposal of high-level nuclear waste in shale formations
SO HYDROGEOLOGY JOURNAL
LA English
DT Article
DE Diffusion; Groundwater hydraulics; Solute transport; Waste disposal;
Conceptual models
ID HYDRAULIC CONDUCTIVITY; WATER; EQUATION; LIQUID
AB In clay or other low-permeability media, water flow becomes non-Darcian and characterized by the non-linear relationship between water flux and hydraulic gradient. This work is devoted to addressing a number of key issues related to geological disposal of high-level nuclear waste in clay/shale formations. It is demonstrated that water flow velocity in the damaged zone (often considered as a potential preferential advection paths in a repository) surrounding the tunnel is extremely small, as a result of non-Darcian flow behavior, such that solute transport is dominated by diffusion, rather than advection. The finding is also consistent with the often-observed existence of persistent abnormal pressures in shale formations. While relative permeability is the key parameter for modeling the unsaturated flow process, without incorporating non-Darcian flow behavior, significant errors can occur in the determination of relative permeability values from traditional measurement methods. An approach for dealing with temperature impact on non-Darcian flow and a formulation to calculate non-Darcian water flux in an anisotropic medium are presented, taking into consideration that a geological repository is subject to temperature evolution in the near field as a result of heat generated by nuclear waste, and that shale formations are generally anisotropic.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Liu, HH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
EM hhliu@lbl.gov
FU DOE [DE-AC02-05CH11231]
FX The original version of this paper is reviewed by James Houseworth and
Dan Hawkes at Lawrence Berkeley National Laboratory. I also appreciate
the constructive comments on the work from the associate editor, Mr. Wei
Zhang, and an anonymous reviewer. The study documented in section "A
demonstration of impact of non-Darcian flow on performance of a clay
repository" was largely motivated by a discussion with Dr. Yifeng Wang
at Sandia National Laboratory. This work was funded by and conducted for
the Used Fuel Disposition Campaign under DOE Contract No.
DE-AC02-05CH11231
NR 25
TC 3
Z9 3
U1 2
U2 14
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1431-2174
EI 1435-0157
J9 HYDROGEOL J
JI Hydrogeol. J.
PD NOV
PY 2014
VL 22
IS 7
BP 1525
EP 1534
DI 10.1007/s10040-014-1145-x
PG 10
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA AS1RE
UT WOS:000344057300004
ER
PT J
AU Lentine, AL
Nielson, GN
Okandan, M
Cruz-Campa, JL
Tauke-Pedretti, A
AF Lentine, Anthony L.
Nielson, Gregory N.
Okandan, Murat
Cruz-Campa, Jose-Luis
Tauke-Pedretti, Anna
TI Voltage Matching and Optimal Cell Compositions for Microsystem-Enabled
Photovoltaic Modules
SO IEEE JOURNAL OF PHOTOVOLTAICS
LA English
DT Article
DE Microoptics; microsensors; photovoltaic cells; photovoltaic systems;
solar energy
ID CONCENTRATOR SOLAR-CELLS; OPTICAL-CONSTANTS; PARAMETERS; EFFICIENCY;
GAAS
AB In this paper, we calculate optimal cell compositions and voltage-matching considerations for independently connected junctions, such as those proposed for microsystem-enabled photovoltaic modules. The calculations show that designs using voltage-matched independent junctions can achieve better yearly efficiency across temperature and spectrum than traditional monolithic cells. Voltage matching is shown to be relatively insensitive to temperature and spectrum but is dependent on open-circuit voltage as a measure of cell efficiency. If the efficiencies and, hence, maximum power point voltages are known a priori, voltage matching can usually yield yearly efficiencies of 98-99% of the efficiency of a system with each cell operating at its own maximum power point.
C1 [Lentine, Anthony L.; Nielson, Gregory N.; Okandan, Murat; Cruz-Campa, Jose-Luis; Tauke-Pedretti, Anna] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Lentine, AL (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM alentine@sandia.gov; gnniels@sandia.gov; mokanda@sandia.gov;
jlcruzc@sandia.gov; ataukep@sandia.gov
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX Sandia National Laboratories is a multiprogram laboratory managed and
operated by Sandia Corporation (a wholly owned subsidiary of Lockheed
Martin Corporation) for the U.S. Department of Energy's National Nuclear
Security Administration under Contract DE-AC04-94AL85000.
NR 36
TC 3
Z9 3
U1 1
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2156-3381
J9 IEEE J PHOTOVOLT
JI IEEE J. Photovolt.
PD NOV
PY 2014
VL 4
IS 6
BP 1593
EP 1602
DI 10.1109/JPHOTOV.2014.2345437
PG 10
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA AS9DH
UT WOS:000344542900042
ER
PT J
AU Hanson, AJ
Deline, CA
MacAlpine, SM
Stauth, JT
Sullivan, CR
AF Hanson, Alex J.
Deline, Christopher A.
MacAlpine, Sara M.
Stauth, Jason T.
Sullivan, Charles R.
TI Partial-Shading Assessment of Photovoltaic Installations via
Module-Level Monitoring
SO IEEE JOURNAL OF PHOTOVOLTAICS
LA English
DT Article
DE DC power optimizer; distributed maximum power point tracking (DMPPT);
distributed power electronics; partial shading; PV system performance
ID CONNECTED PV SYSTEMS; PERFORMANCE
AB Distributed maximum power point tracking (DMPPT) is a topic of much interest in improving photovoltaic (PV) system performance. This study uses measured performance data at the module level for 542 PV systems to estimate lost system performance due to partial shade. Because each of the monitored systems is equipped with module-level dc power optimizers, an estimate is made of the overall system shading loss and the performance improvement that the system has received from this use of DMPPT. The estimate of shade extent and performance improvement predicted by this approach is verified experimentally against a system that has site survey images, and measured production with and without module-level electronics. Summary data for this analysis across 542 systems find an average power loss of 8.3% due to partial shading, which would have increased to 13% were the systems not equipped with panel-level optimizers. It is estimated that on average, 36% of the power lost from partial shading has been recovered through use of module-level dc power electronics.
C1 [Hanson, Alex J.; Stauth, Jason T.; Sullivan, Charles R.] Thayer Sch Engn Dartmouth, Hanover, NH 03755 USA.
[Deline, Christopher A.; MacAlpine, Sara M.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Hanson, AJ (reprint author), MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
EM Alex.J.Hanson.14@dartmouth.edu; chris.deline@nrel.gov;
sara.macalpine@nrel.gov; jason.t.stauth@dartmouth.edu;
charles.r.sullivan@dartmouth.edu
FU U.S. Department of Energy [DE-AC36-08-GO28308]; National Renewable
Energy Laboratory; U.S. Department of Energy SunShot Incubator 6 Award;
SunShot Incubator Award; National Science Foundation [1309905]
FX This work was supported in part by the U.S. Department of Energy under
Contract DE-AC36-08-GO28308 with the National Renewable Energy
Laboratory and with a U.S. Department of Energy SunShot Incubator 6
Award to Tigo Energy. This work was also supported by a SunShot
Incubator Award to Tigo Energy and by the National Science Foundation
under Grant 1309905.
NR 24
TC 7
Z9 7
U1 0
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2156-3381
J9 IEEE J PHOTOVOLT
JI IEEE J. Photovolt.
PD NOV
PY 2014
VL 4
IS 6
BP 1618
EP 1624
DI 10.1109/JPHOTOV.2014.2351623
PG 7
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA AS9DH
UT WOS:000344542900045
ER
PT J
AU He, XQ
Brown, G
Demirkan, K
Mackie, N
Lordi, V
Rockett, A
AF He, X. Q.
Brown, G.
Demirkan, K.
Mackie, N.
Lordi, V.
Rockett, A.
TI Microstructural and Chemical Investigation of PVD-CdS/PVD-CuIn1-xGaxSe2
Heterojunctions: A Transmission Electron Microscopy Study
SO IEEE JOURNAL OF PHOTOVOLTAICS
LA English
DT Article
DE Cu(In, Ga)Se-2 photovoltaics; PVD-CdS structure; transmission electron
microscopy; twins
ID CU(IN,GA)SE-2 THIN-FILMS; BATH DEPOSITION PROCESS; SOLAR-CELLS; BUFFER
LAYERS; CDS; CUINSE2; SURFACE
AB We report on a detailed transmission electron microscopy (TEM) study of physical-vapor-deposited (PVD) CdS/CuIn1-xGaxSe2 (CIGS) heterojunctions prepared at the Mia-Sole production line. High-resolution TEM images of the heterointerface reveal the coexistence of CdS domains of cubic and hexagonal phases. Both are shown to grow epitaxially on the CIGS surface. Twin boundaries in the CIGS were observed to propagate into the epitaxial CdS and continue through the whole CdS layer. Scanning TEM in combination with energy dispersive X-ray spectroscopy shows the presence of Cu in the CdS up to similar to 20 nm from the heterojunction. These results provide insights into the PVD-CdS/CIGS heterointerface and suggest that buffer layer crystallinity sufficient to produce photocurrent generation may be obtained with further process optimization.
C1 [He, X. Q.; Rockett, A.] Univ Illinois, Urbana, IL 61801 USA.
[Brown, G.; Demirkan, K.; Mackie, N.] MiaSole Hitech, Santa Clara, CA 95051 USA.
[Lordi, V.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP He, XQ (reprint author), Univ Illinois, Urbana, IL 61801 USA.
EM hhexiaoqing@gmail.com; gbrown@miasole.com; kdemirkan@miasole.com;
nmackie@miasole.com; lordi2@llnl.gov; arockett@illinois.edu
FU DOE/EERE SunShot BRIDGE program; U.S. Department of Energy by Lawrence
Livermore National Laboratory [DE-AC52-07NA27344]
FX This work was supported by the DOE/EERE SunShot BRIDGE program. A
portion of this work was performed under the auspices of the U.S.
Department of Energy by Lawrence Livermore National Laboratory under
Contract DE-AC52-07NA27344.
NR 17
TC 5
Z9 5
U1 1
U2 16
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2156-3381
J9 IEEE J PHOTOVOLT
JI IEEE J. Photovolt.
PD NOV
PY 2014
VL 4
IS 6
BP 1625
EP 1629
DI 10.1109/JPHOTOV.2014.2344752
PG 5
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA AS9DH
UT WOS:000344542900046
ER
PT J
AU Li, C
Poplawsky, J
Paudel, N
Pennycook, TJ
Haigh, SJ
Al-Jassim, MM
Yan, Y
Pennycook, SJ
AF Li, C.
Poplawsky, J.
Paudel, N.
Pennycook, T. J.
Haigh, S. J.
Al-Jassim, M. M.
Yan, Y.
Pennycook, S. J.
TI S-Te Interdiffusion within Grains and Grain Boundaries in CdTe Solar
Cells
SO IEEE JOURNAL OF PHOTOVOLTAICS
LA English
DT Article
DE CdTe; interface scanning transmission electron microscopy; thin-film
photovoltaic
ID THIN-FILMS
AB At the CdTe/CdS interface, a significant Te-S interdiffusion has been found a few nanometers into the CdTe grain interiors with scanning transmission electron microscopy (STEM) and electron energy loss spectroscopy. This interdiffusion happens on both as-grown and CdCl2 -treated CdTe. S substitution at Te sites has been directly resolved in CdTe with STEM Z-contrast images, which further confirms the S diffusion into CdTe grain interiors. Moreover, when a sufficient amount of S substitutes for Te, a structural transformation from zinc-blende to wurtzite has been observed. In the CdCl2 treated CdTe, Cl segregation has also been found at the interface. STEM electron-beam-induced current shows that the p-n junction occurs a few namometers into the CdTe grains, which is consistent with the S diffusion range we observe. The shift of the p-n junction suggests a buried homojunction which would help reduce nonradiative recombination at the junction. Meanwhile, long-range S diffusion in CdTe grain boundaries (GBs) has been detected, as has Te and Cl diffusion in CdS GBs.
C1 [Li, C.] Vanderbilt Univ, Dept Chem, Nashville, TN 37235 USA.
[Li, C.; Poplawsky, J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Poplawsky, J.; Pennycook, S. J.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Paudel, N.; Yan, Y.] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA.
[Pennycook, T. J.] Univ Oxford, Dept Mat, Oxford OX13 PH, England.
[Pennycook, T. J.] SuperSTEM Lab, Daresbury WA44 AD, England.
[Haigh, S. J.] Univ Manchester, Sch Mat, Manchester M139 PL, Lancs, England.
[Al-Jassim, M. M.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Li, C (reprint author), Vanderbilt Univ, Dept Chem, Box 1583, Nashville, TN 37235 USA.
EM lichen0320@gmail.com; poplawskyjd@ornl.gov; naba.paudel@utoledo.edu;
pennycook@materials.ox.ac.uk; sarah.haigh@manchester.ac.uk;
mowafak.aljassim@nrel.gov; yanfa.yan@utoledo.edu; spennyco@utk.edu
RI Pennycook, Timothy/B-4946-2014; Haigh, Sarah/D-1309-2014; Poplawsky,
Jonathan/Q-2456-2015
OI Pennycook, Timothy/0000-0002-0008-6516; Haigh,
Sarah/0000-0001-5509-6706; Poplawsky, Jonathan/0000-0002-4272-7043
FU U.S. Department of Energy Office of Energy Efficiency and Renewable
Energy; Foundational Program to Advance Cell Efficiency (F-PACE); Office
of Basic Energy Sciences, Materials Science and Engineering Division;
U.K. Engineering and Physical Sciences Research Council through the U.K.
National Facility for Aberration-Corrected STEM
FX This work was supported by the U.S. Department of Energy Office of
Energy Efficiency and Renewable Energy, Foundational Program to Advance
Cell Efficiency (F-PACE) (C. Li, J. Poplawsky, N. Paudel, Y. Yan, M. M.
Al-Jassim, S. J. Pennycook) and the Office of Basic Energy Sciences,
Materials Science and Engineering Division (microscope support).
STEM-EDX was supported by the U.K. Engineering and Physical Sciences
Research Council through the U.K. National Facility for
Aberration-Corrected STEM (T. J. Pennycook and S. J. Haigh).
NR 24
TC 8
Z9 8
U1 1
U2 47
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2156-3381
J9 IEEE J PHOTOVOLT
JI IEEE J. Photovolt.
PD NOV
PY 2014
VL 4
IS 6
BP 1636
EP 1643
DI 10.1109/JPHOTOV.2014.2351622
PG 8
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA AS9DH
UT WOS:000344542900048
ER
PT J
AU Mansfield, LM
Noufi, R
Muzzillo, CP
DeHart, C
Bowers, K
To, B
Pankow, JW
Reedy, RC
Ramanathan, K
AF Mansfield, Lorelle M.
Noufi, Rommel
Muzzillo, Christopher P.
DeHart, Clay
Bowers, Karen
To, Bobby
Pankow, Joel W.
Reedy, Robert C.
Ramanathan, Kannan
TI Enhanced Performance in Cu(In,Ga)Se-2 Solar Cells Fabricated by the
Two-Step Selenization Process With a Potassium Fluoride Postdeposition
Treatment
SO IEEE JOURNAL OF PHOTOVOLTAICS
LA English
DT Article
DE Copper compounds; Cu(In, Ga)Se-2; current-voltage characteristics;
photovoltaic cells; potassium fluoride post-deposition treatment; thin
films
ID EFFICIENCY; FILMS
AB Cu(In,Ga)Se-2 (CIGS) solar cells fabricated with two-step selenization processes commonly suffer from low open-circuit voltage (V-oc). We found that the V-oc of solar cells made from selenized Cu/Ga/In stackedmetal precursors can be increased by employing a potassium fluoride (KF) postdeposition treatment (PDT). This study presents a comparison of films and resulting devices with and without the KF PDT. By including the KF PDT, an 18.6%-efficient CIGS device with a V-oc of 0.709 V was fabricated using a two-step selenization process.
C1 [Mansfield, Lorelle M.; Noufi, Rommel; Muzzillo, Christopher P.; DeHart, Clay; Bowers, Karen; To, Bobby; Pankow, Joel W.; Reedy, Robert C.; Ramanathan, Kannan] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Muzzillo, Christopher P.] Univ Florida, Gainesville, FL 32601 USA.
RP Mansfield, LM (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM lorelle.mansfield@nrel.gov; rommel.noufi@gmail.com;
christopher.muzzillo@nrel.gov; clay.dehart@nrel.gov;
karen.bowers@nrel.gov; bobby.to@nrel.gov; joel.pankow@nrel.gov;
bob.reedy@nrel.gov; kannan.ramanathan@nrel.gov
FU U.S. Department of Energy [DE-AC36-08-GO28308]; National Renewable
Energy Laboratory
FX This work was supported by the U.S. Department of Energy under Grant
DE-AC36-08-GO28308 with the National Renewable Energy Laboratory.
NR 15
TC 5
Z9 5
U1 3
U2 36
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2156-3381
J9 IEEE J PHOTOVOLT
JI IEEE J. Photovolt.
PD NOV
PY 2014
VL 4
IS 6
BP 1650
EP 1654
DI 10.1109/JPHOTOV.2014.2354259
PG 5
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA AS9DH
UT WOS:000344542900050
ER
PT J
AU Moseley, J
Al-Jassim, MM
Kuciauskas, D
Moutinho, HR
Paudel, N
Guthrey, HL
Yan, YF
Metzger, WK
Ahrenkiel, RK
AF Moseley, John
Al-Jassim, Mowafak M.
Kuciauskas, Darius
Moutinho, Helio R.
Paudel, Naba
Guthrey, Harvey L.
Yan, Yanfa
Metzger, Wyatt K.
Ahrenkiel, Richard K.
TI Cathodoluminescence Analysis of Grain Boundaries and Grain Interiors in
Thin-Film CdTe
SO IEEE JOURNAL OF PHOTOVOLTAICS
LA English
DT Article
DE Cathodoluminescence (CL); CdTe solar cells; grain boundaries (GBs);
grain interiors (GIs); thin films
ID POLYCRYSTALLINE SOLAR-CELLS; BEAM-INDUCED CURRENT; CADMIUM TELLURIDE;
CDCL2 TREATMENT; ELECTRON-BEAM; GROWN CDTE; PHOTOLUMINESCENCE;
RECRYSTALLIZATION; DISLOCATIONS; LUMINESCENCE
AB We used low-temperature cathodoluminescence (CL) spectrum imaging (CLSI) with nanoscale spatial resolution to examine charge-carrier recombination and defects at grain boundaries (GBs) and grain interiors (GIs) in as-deposited and CdCl2-treated CdTe thin films. Supporting time-resolved photoluminescence, T = 4 K photoluminescence, secondary ion mass spectrometry, and electron backscatter diffraction measurements were conducted on the same films. Color-coded maps of the luminescence transition energies (photon energy maps) were used to analyze the qualitative characteristics of the CLSI data. We applied an image analysis algorithm to the pixels in grayscale CL intensity images to compare the luminescence intensities and spectra at the GIs and GBs quantitatively and with statistical relevance. Our results show that GBs in as-deposited films are active recombination centers and are thus harmful to solar cell operation. CL GB defect contrast is quantifiably reduced for the CdCl2-treated film, which is direct evidence of passivation of deep GB core states resulting from the treatment. However, the CdCl2 treatment is not a perfect fix for GB recombination, and GB recombination may still be limiting performance in CdCl2-treated devices.
C1 [Moseley, John; Al-Jassim, Mowafak M.; Kuciauskas, Darius; Moutinho, Helio R.; Guthrey, Harvey L.; Metzger, Wyatt K.; Ahrenkiel, Richard K.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Moseley, John; Ahrenkiel, Richard K.] Colorado Sch Mines, Golden, CO 80401 USA.
[Paudel, Naba; Yan, Yanfa] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA.
RP Moseley, J (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM john.moseley@nrel.gov; mowafak.aljassim@nrel.gov;
darius.kuciauskas@nrel.gov; he-lio.moutinho@nrel.gov;
naba.paudel@utoledo.edu; harvey.guthrey@nrel.gov; yanfa.yan@utoledo.edu;
wyatt.metzger@nrel.gov; richard.ahrenkiel@nrel.gov
FU U.S. Department of Energy [DE-AC36-08-GO28308]; National Renewable
Energy Laboratory
FX This work was supported by the U.S. Department of Energy under Contract
DE-AC36-08-GO28308 with the National Renewable Energy Laboratory.
NR 56
TC 8
Z9 8
U1 1
U2 37
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2156-3381
J9 IEEE J PHOTOVOLT
JI IEEE J. Photovolt.
PD NOV
PY 2014
VL 4
IS 6
BP 1671
EP 1679
DI 10.1109/JPHOTOV.2014.2359732
PG 9
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA AS9DH
UT WOS:000344542900053
ER
PT J
AU Ostrowski, J
Wang, JH
Liu, C
AF Ostrowski, James
Wang, Jianhui
Liu, Cong
TI Transmission Switching With Connectivity-Ensuring Constraints
SO IEEE TRANSACTIONS ON POWER SYSTEMS
LA English
DT Article
DE Anti-islanding; integer programming; optimization; reliability;
transmission switching
ID POWER FLOW; SECURITY; ALGORITHM; SYSTEM; RELIABILITY
AB This paper seeks to improve the computational time needed to solve transmission switching problems. Transmission switching provides an effective way to reduce operating costs in power system operations by altering the topology of the transmission network. However, determining the optimal set of lines to switch creates an enormous computational burden. Transmission switching formulations add binary decision variables for many transmission lines in the system to indicate if they are switched. This creates a very weak formulation that is difficult to solve. Altering the transmission topology by switching lines can affect the reliability of the network, for instance, by creating islands. Additional reliability constraints need to be added to the problem formulation. These constraints can potentially make an already difficult problem even harder. This paper takes a different approach to the transmission switching problem. Rather than preventing islanding by using constraints in the problem formulation, we look at how they can be used to improve the solution process. Specifically, we develop a cutting plane algorithm to generate valid inequalities and fix variables based on the fact that optimal solutions to the transmission switching problem that do not contain islands exist.
C1 [Ostrowski, James] Univ Tennessee, Ind & Syst Engn Dept, Knoxville, TN 37996 USA.
[Wang, Jianhui; Liu, Cong] Argonne Natl Lab, Decis & Informat Sci Div, Argonne, IL 60439 USA.
RP Ostrowski, J (reprint author), Univ Tennessee, Ind & Syst Engn Dept, Knoxville, TN 37996 USA.
NR 25
TC 2
Z9 3
U1 1
U2 3
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8950
EI 1558-0679
J9 IEEE T POWER SYST
JI IEEE Trans. Power Syst.
PD NOV
PY 2014
VL 29
IS 6
BP 2621
EP 2627
DI 10.1109/TPWRS.2014.2315434
PG 7
WC Engineering, Electrical & Electronic
SC Engineering
GA AS6YR
UT WOS:000344405600006
ER
PT J
AU Zhao, CY
Wang, QF
Wang, JH
Guan, YP
AF Zhao, Chaoyue
Wang, Qianfan
Wang, Jianhui
Guan, Yongpei
TI Expected Value and Chance Constrained Stochastic Unit Commitment
Ensuring Wind Power Utilization
SO IEEE TRANSACTIONS ON POWER SYSTEMS
LA English
DT Article
DE Chance constraint; expected value constraint; sample average
approximation; stochastic optimization; unit commitment; wind power
ID SAMPLE AVERAGE APPROXIMATION; OPTIMIZATION; UNCERTAINTY; GENERATION;
SYSTEMS; RISK; DEMAND
AB This paper proposes an expected value and chance constrained stochastic optimization approach for the unit commitment problem with uncertain wind power output. In the model, the utilization of wind power can be adjusted by changing the utilization rate in the proposed expected value constraint. Meanwhile, the chance constraint is used to restrict the probability of load imbalance. Then a Sample Average Approximation (SAA) method is used to transform the objective function, the expected value constraint, and the chance constraint into sample average reformulations. Furthermore, a combined SAA framework that considers both the expected value and the chance constraints is proposed to construct statistical upper and lower bounds for the optimization problem. Finally, the performance of the proposed algorithm with different utilization rates and different risk levels is tested for a six-bus system. A revised IEEE 118-bus system is also studied to show the scalability of the proposed model and algorithm.
C1 [Zhao, Chaoyue] Oklahoma State Univ, Dept Ind Engn & Management, Stillwater, OK 74074 USA.
[Wang, Qianfan] Alstom Grid, Redmond, WA 98052 USA.
[Wang, Jianhui] Argonne Natl Lab, Decis & Informat Sci Div, Lemont, IL 60439 USA.
[Guan, Yongpei] Univ Florida, Dept Ind & Syst Engn, Gainesville, FL 32611 USA.
RP Zhao, CY (reprint author), Oklahoma State Univ, Dept Ind Engn & Management, Stillwater, OK 74074 USA.
EM cherryzhao09@gmail.com; qfwang@ufl.edu; jianhui.wang@anl.gov;
guan@ise.ufl.edu
FU University of Chicago Argonne, LLC, Operator of Argonne National
Laboratory ("Argonne"). Argonne, a U. S. Department of Energy Office of
Science laboratory [DE-AC02-06CH11357]
FX This work was supported in part by University of Chicago 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. Paper no. TPWRS-00686-2013.
NR 34
TC 10
Z9 11
U1 3
U2 9
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8950
EI 1558-0679
J9 IEEE T POWER SYST
JI IEEE Trans. Power Syst.
PD NOV
PY 2014
VL 29
IS 6
BP 2696
EP 2705
DI 10.1109/TPWRS.2014.2319260
PG 10
WC Engineering, Electrical & Electronic
SC Engineering
GA AS6YR
UT WOS:000344405600013
ER
PT J
AU Li, J
Ma, XY
Liu, CC
Schneider, KP
AF Li, Juan
Ma, Xi-Yuan
Liu, Chen-Ching
Schneider, Kevin P.
TI Distribution System Restoration With Microgrids Using Spanning Tree
Search
SO IEEE TRANSACTIONS ON POWER SYSTEMS
LA English
DT Article
DE Distribution automation; Gridlab-D; microgrids; self-healing; service
restoration; spanning tree
ID SERVICE RESTORATION; EXPERT-SYSTEM; GENERATION; OPERATION
AB Distribution system restoration (DSR) is aimed at restoring loads after a fault by altering the topological structure of the distribution network while meeting electrical and operational constraints. The emerging microgrids embedded in distribution systems enhance the self-healing capability and allow distribution systems to recover faster in the event of an outage. This paper presents a graph-theoretic DSR strategy incorporating microgrids that maximizes the restored load and minimizes the number of switching operations. Spanning tree search algorithms are applied to find the candidate restoration strategies by modeling microgrids as virtual feeders and representing the distribution system as a spanning tree. Unbalanced three-phase power flow is performed to ensure that the proposed system topology satisfies all operational constraints. Simulation results based on a modified IEEE 37-node system and a 1069-node distribution system demonstrate the effectiveness of the proposed approach.
C1 [Li, Juan] Southern Calif Edison, Rosemead, CA 91770 USA.
[Ma, Xi-Yuan] Wuhan Univ, Sch Elect Engn, Wuhan 430072, Peoples R China.
[Liu, Chen-Ching] Washington State Univ, Dept Elect Engn & Comp Sci, Pullman, WA 99163 USA.
[Liu, Chen-Ching] Univ Coll Dublin, Sch Mech & Mat Engn, Dublin 2, Ireland.
[Schneider, Kevin P.] PNNL, Richland, WA 99352 USA.
RP Ma, XY (reprint author), Wuhan Univ, Sch Elect Engn, Wuhan 430072, Peoples R China.
EM amy.li@sce.com; hushi@whu.edu.cn; liu@eecs.wsu.edu;
kevin.schneider@pnl.gov
FU U.S. Department of Energy (DOE); Pacific Northwest National Laboratory
(PNNL)
FX This work was supported in part by the U.S. Department of Energy (DOE)
and in part by Pacific Northwest National Laboratory (PNNL). Paper no.
TPWRS-01348-2013.
NR 23
TC 19
Z9 20
U1 2
U2 9
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8950
EI 1558-0679
J9 IEEE T POWER SYST
JI IEEE Trans. Power Syst.
PD NOV
PY 2014
VL 29
IS 6
BP 3021
EP 3029
DI 10.1109/TPWRS.2014.2312424
PG 9
WC Engineering, Electrical & Electronic
SC Engineering
GA AS6YR
UT WOS:000344405600046
ER
PT J
AU Chen, BK
Wang, JH
Wang, LZ
He, YY
Wang, ZY
AF Chen, Bokan
Wang, Jianhui
Wang, Lizhi
He, Yanyi
Wang, Zhaoyu
TI Robust Optimization for Transmission Expansion Planning: Minimax Cost
vs. Minimax Regret
SO IEEE TRANSACTIONS ON POWER SYSTEMS
LA English
DT Article
DE Generation retirement; load growth; minimax cost; minimax regret; robust
optimization; transmission expansion planning
ID LINEAR-PROGRAMS; UNIT COMMITMENT
AB Due to the long planning horizon, transmission expansion planning is typically subjected to a lot of uncertainties including load growth, renewable energy penetration, policy changes, etc. In addition, deregulation of the power industry and pressure from climate change introduced new sources of uncertainties on the generation side of the system. Generation expansion and retirement become highly uncertain as well. Some of the uncertainties do not have probability distributions, making it difficult to use stochastic programming. Techniques like robust optimization that do not require a probability distribution became desirable. To address these challenges, we study two optimization criteria for the transmission expansion planning problem under the robust optimization paradigm, where the maximum cost and maximum regret of the expansion plan over all uncertainties are minimized, respectively. With these models, our objective is to make planning decisions that are robust against all scenarios. We use a two-layer algorithm to solve the resulting tri-level optimization problems. Then, in our case studies, we compare the performance of the minimax cost approach and the minimax regret approach under different characterizations of uncertainties.
C1 [Chen, Bokan; Wang, Lizhi; He, Yanyi] Iowa State Univ, Dept Ind & Mfg Syst Engn, Ames, IA 50014 USA.
[Wang, Jianhui] Argonne Natl Lab, Lemont, IL 60439 USA.
[Wang, Zhaoyu] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA.
RP Chen, BK (reprint author), Iowa State Univ, Dept Ind & Mfg Syst Engn, Ames, IA 50014 USA.
EM bokanc@iastate.edu; jianhui.wang@anl.gov; lzwang@iastate.edu;
heyanyi@iastate.edu; zhaoyuwang@gatech.edu
FU Power Systems Engineering Research Center; Electric Power Research
Center at Iowa State University; U.S. Department of Energy Office of
Electricity Delivery and Energy Reliability
FX B. Chen and L. Wang are supported in part by the Power Systems
Engineering Research Center and the Electric Power Research Center at
Iowa State University. The work of J. Wang and part of the work by B.
Chen was supported by the U.S. Department of Energy Office of
Electricity Delivery and Energy Reliability. Without implication, all
errors are the authors'. Paper no. TPWRS-01416-2013.
NR 28
TC 11
Z9 13
U1 0
U2 10
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8950
EI 1558-0679
J9 IEEE T POWER SYST
JI IEEE Trans. Power Syst.
PD NOV
PY 2014
VL 29
IS 6
BP 3069
EP 3077
DI 10.1109/TPWRS.2014.2313841
PG 9
WC Engineering, Electrical & Electronic
SC Engineering
GA AS6YR
UT WOS:000344405600051
ER
PT J
AU Li, ZS
Guo, QL
Sun, HB
Xin, SJ
Wang, JH
AF Li, Zhengshuo
Guo, Qinglai
Sun, Hongbin
Xin, Shujun
Wang, Jianhui
TI A New Real-Time Smart-Charging Method Considering Expected Electric
Vehicle Fleet Connections
SO IEEE TRANSACTIONS ON POWER SYSTEMS
LA English
DT Article
DE Electric vehicle; real-time; valley-filing; vehicle charging; vehicle
fleet
ID DIVIDED OPTIMIZATION; EV AGGREGATOR; PARTICIPATION
AB This letter presents a real-time electric vehicle (EV) smart-charging method (N-RT), that not only considers currently connected EVs, but also uses a prediction of the EVs that are expected to plug in in the future. Numerical tests show that the N-RT method improves valley-filling under various levels of prediction accuracy.
C1 [Li, Zhengshuo; Guo, Qinglai; Sun, Hongbin; Xin, Shujun] Tsinghua Univ, State Key Lab Power Syst, Dept Elect Engn, Beijing 100084, Peoples R China.
[Wang, Jianhui] Argonne Natl Lab, Decis & Informat Sci Div, Argonne, IL 60439 USA.
RP Li, ZS (reprint author), Tsinghua Univ, State Key Lab Power Syst, Dept Elect Engn, Beijing 100084, Peoples R China.
EM shb@mail.tsinghua.edu.cn
FU National Key Basic Research Program of China (973 Program)
[2013CB228202]; National Science Fund for Distinguished Young Scholars
[51025725]; National Science Foundation of China [51321005]; Tsinghua
University Initiative Scientific Research Program
FX This work was supported in part by the National Key Basic Research
Program of China (973 Program) (2013CB228202), the National Science Fund
for Distinguished Young Scholars (51025725), National Science Foundation
of China (51321005), and the Tsinghua University Initiative Scientific
Research Program. Paper no. PESL-00093-2013.
NR 6
TC 4
Z9 6
U1 1
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8950
EI 1558-0679
J9 IEEE T POWER SYST
JI IEEE Trans. Power Syst.
PD NOV
PY 2014
VL 29
IS 6
BP 3114
EP 3115
DI 10.1109/TPWRS.2014.2311954
PG 2
WC Engineering, Electrical & Electronic
SC Engineering
GA AS6YR
UT WOS:000344405600056
ER
PT J
AU Mudenda, L
Pierle, SA
Turse, JE
Scoles, GA
Purvine, SO
Nicora, CD
Clauss, TRW
Ueti, MW
Brown, WC
Brayton, KA
AF Mudenda, Lwiindi
Pierle, Sebastian Aguilar
Turse, Joshua E.
Scoles, Glen A.
Purvine, Samuel O.
Nicora, Carrie D.
Clauss, Therese R. W.
Ueti, Massaro W.
Brown, Wendy C.
Brayton, Kelly A.
TI Proteomics informed by transcriptomics identifies novel secreted
proteins in Dermacentor andersoni saliva
SO INTERNATIONAL JOURNAL FOR PARASITOLOGY
LA English
DT Article
DE Tick; Gene expression; Transcriptomics; Proteomics; Salivary proteins;
Saliva; Mass spectrometry
ID RHIPICEPHALUS-APPENDICULATUS TICKS; REAL-TIME PCR; IXODES-SCAPULARIS;
ANAPLASMA-MARGINALE; PLATELET-AGGREGATION; AMBLYOMMA-VARIEGATUM;
STATISTICAL-ANALYSIS; EXPRESSION PROFILE; REFERENCE GENES; RNA-SEQ
AB Dermacentor andersoni, known as the Rocky Mountain wood tick, is found in the western United States and transmits pathogens that cause diseases of veterinary and public health importance including Rocky Mountain spotted fever, tularemia, Colorado tick fever and bovine anaplasmosis. Tick saliva is known to modulate both innate and acquired immune responses, enabling ticks to feed for several days without detection. During feeding ticks subvert host defences such as hemostasis and inflammation, which would otherwise result in coagulation, wound repair and rejection of the tick. Molecular characterization of the proteins and pharmacological molecules secreted in tick saliva offers an opportunity to develop tick vaccines as an alternative to the use of acaricides, as well as new anti-inflammatory drugs. We performed proteomics informed by transcriptomics to identify D. andersoni saliva proteins that are secreted during feeding. The transcript data generated a database of 21,797 consensus sequences, which we used to identify 677 proteins secreted in the saliva of D. andersoni ticks fed for 2 and 5 days, following proteomic investigations of whole saliva using mass spectrometry. Salivary gland transcript levels of unfed ticks were compared with 2 and 5 day fed ticks to identify genes upregulated early during tick feeding. We cross-referenced the proteomic data with the transcriptomic data to identify 157 proteins of interest for immunomodulation and blood feeding. Proteins of unknown function as well as known immunomodulators were identified. (C) 2014 Australian Society for Parasitology Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Mudenda, Lwiindi; Pierle, Sebastian Aguilar; Brayton, Kelly A.] Washington State Univ, Paul G Allen Sch Global Anim Hlth, Pullman, WA 99164 USA.
[Mudenda, Lwiindi; Pierle, Sebastian Aguilar; Turse, Joshua E.; Brown, Wendy C.; Brayton, Kelly A.] Washington State Univ, Dept Vet Microbiol & Pathol, Pullman, WA 99164 USA.
[Scoles, Glen A.; Ueti, Massaro W.] ARS, Anim Dis Res Unit, USDA, Pullman, WA USA.
[Purvine, Samuel O.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Nicora, Carrie D.; Clauss, Therese R. W.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
RP Brown, WC (reprint author), Washington State Univ, Dept Vet Microbiol & Pathol, Pullman, WA 99164 USA.
EM wbrown@vetmed.wsu.edu; kbrayton@vetmed.wsu.edu
FU Department of Energy's Office of Biological and Environmental Research;
Fulbright Program, USA; Paul G. Allen School for Global Animal Health,
Washington State University, USA; Conacyt, Mexico; Poncin, USA; U.S.
Department of Agriculture [ARS 5348-32000-033-00D]
FX The global proteomic study was performed using EMSL, a national
scientific user facility sponsored by the Department of Energy's Office
of Biological and Environmental Research and located at the Pacific
Northwest National Laboratory, Richland, WA, USA. Lwiindi Mudenda was
supported by a grant from the Fulbright Program, USA and by the Paul G.
Allen School for Global Animal Health, Washington State University, USA,
and Sebastian Aguilar Pierle was supported by Conacyt, Mexico and
Poncin, USA. This work was supported in part by U.S. Department of
Agriculture grant ARS 5348-32000-033-00D. We appreciate the excellent
technical support of Xiaoya Cheng, James Allison, Ralph Horn, Sara Davis
and Kathy Mason.
NR 61
TC 14
Z9 14
U1 2
U2 19
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0020-7519
EI 1879-0135
J9 INT J PARASITOL
JI Int. J. Parasit.
PD NOV
PY 2014
VL 44
IS 13
BP 1029
EP 1037
DI 10.1016/j.ijpara.2014.07.003
PG 9
WC Parasitology
SC Parasitology
GA AS7GS
UT WOS:000344425700007
PM 25110293
ER
PT J
AU Dingreville, R
Eckert-Gallup, A
Sallaberry, C
AF Dingreville, Remi
Eckert-Gallup, Aubrey
Sallaberry, Cedric
TI Uncertainty analysis for the net-section-collapse failure criterion of
circumferentially cracked cylinders for multiple arbitrary-shaped
circumferential cracks
SO INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
LA English
DT Article
DE Surface cracks; Net section collapse; Stability criterion; Corrosion;
ASME section XI
ID LIMIT LOADS; PIPES; PRESSURE; FRACTURE; FLAWS
AB In this manuscript, a generalized net-section-collapse (NSC) failure criterion of circumferentially cracked pipes with multiple arbitrary-shaped cracks is presented. This generalized NSC formulation is capable of predicting the NSC moment of a pipe with multiple arbitrary-shaped cracks distributed around the circumference of the pipe, regardless of whether they are distributed symmetrically or not. The case in which internal cracks straddle the compressive zone is accounted for in the present formulation. Closed form solutions are provided for the maximum moments of pipes containing multiple cracks with idealized shapes, namely constant depth, semi-elliptical and parabolic crack profiles. Through a series of examples, the results show the effectiveness and accuracy of the method. Using this method, quantification of the effect of the crack profile uncertainty on the maximum bending moment sustained by a cracked pipe is evaluated. It is demonstrated that while the uncertainty associated with the surface roughness of the crack profile has little to no effect on the maximum bending moment, irregular shape profiles have, not surprisingly, a large effect on the estimation of the maximum bending moment. In fact, it is mathematically shown that the uncertainty associated with the maximum bending moment is proportional to the magnitude of the crack profile uncertainty and inversely proportional to the square root of the uncertainty sampling size (i.e. surface roughness vs. irregular crack profile). Published by Elsevier Ltd.
C1 [Dingreville, Remi; Eckert-Gallup, Aubrey; Sallaberry, Cedric] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Dingreville, R (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM rdingre@sandia.gov
OI Dingreville, Remi/0000-0003-1613-695X
FU United States Department of Energy [DE-AC04-94AL85000]
FX The authors would like to thank Dr. F.W. Brust, Dr. D.L. Rudland and Dr.
K. Hasegawa for their valuable comments and suggestions during this
work. Sandia is a multiprogram laboratory operated by Sandia
Corporation, a Lockheed Martin Company, for the United States Department
of Energy, under Contract No. DE-AC04-94AL85000.
NR 22
TC 1
Z9 1
U1 0
U2 9
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0308-0161
EI 1879-3541
J9 INT J PRES VES PIP
JI Int. J. Pressure Vessels Pip.
PD NOV-DEC
PY 2014
VL 123
BP 30
EP 45
DI 10.1016/j.ijpvp.2014.07.005
PG 16
WC Engineering, Multidisciplinary; Engineering, Mechanical
SC Engineering
GA AS2SM
UT WOS:000344129800004
ER
PT J
AU Beliaev, AS
Romine, MF
Serres, M
Bernstein, HC
Linggi, BE
Markillie, LM
Isern, NG
Chrisler, WB
Kucek, LA
Hill, EA
Pinchuk, GE
Bryant, DA
Wiley, HS
Fredrickson, JK
Konopka, A
AF Beliaev, Alexander S.
Romine, Margie F.
Serres, Margrethe
Bernstein, Hans C.
Linggi, Bryan E.
Markillie, Lye M.
Isern, Nancy G.
Chrisler, William B.
Kucek, Leo A.
Hill, Eric A.
Pinchuk, Grigoriy E.
Bryant, Donald A.
Wiley, H. Steven
Fredrickson, Jim K.
Konopka, Allan
TI Inference of interactions in cyanobacterial-heterotrophic co-cultures
via transcriptome sequencing
SO ISME JOURNAL
LA English
DT Article
DE cyanobacterium; heterotroph; co-culture; microbial interactions;
transcriptome; SOLiD sequencing
ID SHEWANELLA-ONEIDENSIS MR-1; STRAIN PCC 7002; GENE-EXPRESSION;
AGMENELLUM-QUADRUPLICATUM; GLOBAL TRANSCRIPTOME; COMPARATIVE GENOMICS;
ELECTRON-ACCEPTORS; METABOLIC PATHWAYS; MARINE-BACTERIA; GROWTH
AB We used deep sequencing technology to identify transcriptional adaptation of the euryhaline unicellular cyanobacterium Synechococcus sp. PCC 7002 and the marine facultative aerobe Shewanella putrefaciens W3-18-1 to growth in a co-culture and infer the effect of carbon flux distributions on photoautotroph-heterotroph interactions. The overall transcriptome response of both organisms to co-cultivation was shaped by their respective physiologies and growth constraints. Carbon limitation resulted in the expansion of metabolic capacities, which was manifested through the transcriptional upregulation of transport and catabolic pathways. Although growth coupling occurred via lactate oxidation or secretion of photosynthetically fixed carbon, there was evidence of specific metabolic interactions between the two organisms. These hypothesized interactions were inferred from the excretion of specific amino acids (for example, alanine and methionine) by the cyanobacterium, which correlated with the downregulation of the corresponding biosynthetic machinery in Shewanella W3-18-1. In addition, the broad and consistent decrease of mRNA levels for many Fe-regulated Synechococcus 7002 genes during co-cultivation may indicate increased Fe availability as well as more facile and energy-efficient mechanisms for Fe acquisition by the cyanobacterium. Furthermore, evidence pointed at potentially novel interactions between oxygenic photoautotrophs and heterotrophs related to the oxidative stress response as transcriptional patterns suggested that Synechococcus 7002 rather than Shewanella W3-18-1 provided scavenging functions for reactive oxygen species under co-culture conditions. This study provides an initial insight into the complexity of photoautotrophic-heterotrophic interactions and brings new perspectives of their role in the robustness and stability of the association.
C1 [Beliaev, Alexander S.; Romine, Margie F.; Bernstein, Hans C.; Markillie, Lye M.; Chrisler, William B.; Kucek, Leo A.; Hill, Eric A.; Pinchuk, Grigoriy E.; Fredrickson, Jim K.; Konopka, Allan] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
[Serres, Margrethe] Josephine Bay Paul Ctr, Marine Biol Lab, Woods Hole, MA USA.
[Linggi, Bryan E.; Isern, Nancy G.; Wiley, H. Steven] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Bryant, Donald A.] Penn State Univ, Dept Biochem & Mol Biol, University Pk, PA 16802 USA.
[Bryant, Donald A.] Montana State Univ, Dept Chem & Biochem, Bozeman, MT 59717 USA.
RP Beliaev, AS (reprint author), Pacific NW Natl Lab, Div Biol Sci, POB 999,MS P7-50, Richland, WA 99352 USA.
EM alex.beliaev@pnnl.gov
RI Beliaev, Alexander/E-8798-2016;
OI Beliaev, Alexander/0000-0002-6766-4632; Romine,
Margaret/0000-0002-0968-7641; Bernstein, Hans/0000-0003-2913-7708
FU Genomic Science Program (GSP); Office of Biological and Environmental
Research (BER), US Department of Energy (DOE); DOE by Battelle Memorial
Institute [DE-AC05-76RLO 1830]
FX The research was supported by the Genomic Science Program (GSP), Office
of Biological and Environmental Research (BER), US Department of Energy
(DOE) and is a contribution of the PNNL Foundational Scientific Focus
Area (FSFA). A significant portion of the research was performed using
the Environmental Molecular Sciences Laboratory (EMSL), a national
scientific user facility sponsored by DOE BER and located at PNNL. We
acknowledge PNNL staff who helped to support this work, specifically
Oleg Geydebrekht and Thomas Wietsma for assistance with the analytical
measurements. We are also grateful to Dr William Nelson for help with
the functional genome annotation and Dr Sergey Stolyar for valuable
advice and critical discussions. PNNL is operated for the DOE by
Battelle Memorial Institute under Contract DE-AC05-76RLO 1830.
NR 62
TC 17
Z9 18
U1 11
U2 53
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1751-7362
EI 1751-7370
J9 ISME J
JI ISME J.
PD NOV
PY 2014
VL 8
IS 11
BP 2243
EP 2255
DI 10.1038/ismej.2014.69
PG 13
WC Ecology; Microbiology
SC Environmental Sciences & Ecology; Microbiology
GA AS7SB
UT WOS:000344454000008
PM 24781900
ER
PT J
AU Pasquier, R
Goulet, JA
Acevedo, C
Smith, IFC
AF Pasquier, Romain
Goulet, James-A.
Acevedo, Claire
Smith, Ian F. C.
TI Improving Fatigue Evaluations of Structures Using In-Service Behavior
Measurement Data
SO JOURNAL OF BRIDGE ENGINEERING
LA English
DT Article
DE Remaining fatigue life; Model-based data interpretation; Population of
models; Uncertainty; Conservatism
ID HEALTH MONITORING DATA; LIFE PREDICTION; STEEL BRIDGES; IDENTIFICATION;
ERRORS
AB Conservative models and code practices are usually employed for fatigue-damage predictions of existing structures. Direct in-service behavior measurements are able to provide more accurate estimations of remaining-fatigue-life predictions. However, these estimations are often accurate only for measured locations and measured load conditions. Behavior models are necessary for exploiting information given by measurements and predicting the fatigue damage at all critical locations and for other load cases. Model-prediction accuracy can be improved using system identification techniques where the properties of structures are inferred using behavior measurements. Building upon recent developments in system identification where both model and measurement uncertainties are considered, this paper presents a new data-interpretation framework for reducing uncertainties related to prediction of fatigue life. An initial experimental investigation confirms that, compared with traditional engineering approaches, the methodology provides a safe and more realistic estimation of the fatigue reserve capacity. A second application on a full-scale bridge also confirms that using load-test data reduces the uncertainty related to remaining-fatigue-life predictions. (C) 2014 American Society of Civil Engineers.
C1 [Pasquier, Romain; Smith, Ian F. C.] Ecole Polytech Fed Lausanne, Sch Architecture Civil & Environm Engn ENAC, Appl Comp & Mech Lab IMAC, CH-1015 Lausanne, Switzerland.
[Goulet, James-A.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
[Acevedo, Claire] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ritchie Grp, Mat Sci Div, Berkeley, CA 94720 USA.
RP Pasquier, R (reprint author), Ecole Polytech Fed Lausanne, Sch Architecture Civil & Environm Engn ENAC, Appl Comp & Mech Lab IMAC, CH-1015 Lausanne, Switzerland.
EM romain.pasquier@epfl.ch
RI Acevedo, Claire/R-6711-2016;
OI Acevedo, Claire/0000-0001-5425-3052; Smith, Ian/0000-0002-5033-2113
FU Swiss national Science Foundation [200020-144304]
FX The authors acknowledge ICOM (Steel Structures Laboratory), EPFL for
providing test results, bridge drawings, and monitoring data, and Yves
Reuland for work on the truss-beam example. This work was partially
funded by the Swiss national Science Foundation under contract no.
200020-144304.
NR 35
TC 3
Z9 3
U1 4
U2 16
PU ASCE-AMER SOC CIVIL ENGINEERS
PI RESTON
PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA
SN 1084-0702
EI 1943-5592
J9 J BRIDGE ENG
JI J. Bridge Eng.
PD NOV
PY 2014
VL 19
IS 11
AR 04014045
DI 10.1061/(ASCE)BE.1943-5592.0000619
PG 10
WC Engineering, Civil
SC Engineering
GA AS0XG
UT WOS:000343998500003
ER
PT J
AU Bai, XL
Shrestha, SL
Casey, FXM
Hakk, H
Fan, ZS
AF Bai, Xuelian
Shrestha, Suman L.
Casey, Francis X. M.
Hakk, Heldur
Fan, Zhaosheng
TI Modeling coupled sorption and transformation of 17
beta-estradiol-17-sulfate in soil-water systems
SO JOURNAL OF CONTAMINANT HYDROLOGY
LA English
DT Article
DE Hormone transport; Estrogen; Estrogen conjugates; 17
beta-Estradiol-17-sulfate
ID AGRICULTURAL SOILS; STOCHASTIC RANKING; STEROID-HORMONES; ESTROGENS;
TRANSPORT; FATE; TESTOSTERONE; ESTRADIOL; ESTRONE; MANURE
AB Animal manure is the primary source of exogenous free estrogens in the environment, which are known endocrine-disrupting chemicals to disorder the reproduction system of organisms. Conjugated estrogens can act as precursors to free estrogens, which may increase the total estrogenicity in the environment. In this study, a comprehensive model was used to simultaneously simulate the coupled sorption and transformation of a sulfate estrogen conjugate, 17 beta-estradiol-17-sulfate (E2-17S), in various soil-water systems (non-sterile/sterile; topsoil/subsoil). The simulated processes included multiple transformation pathways (i.e. hydroxylation, hydrolysis, and oxidation) and mass transfer between the aqueous, reversibly sorbed, and irreversibly sorbed phases of all soils for E2-17S and its metabolites. The conceptual model was conceived based on a series of linear sorption and first-order transformation expressions. The model was inversely solved Using finite difference to estimate process parameters. A global optimization method was applied for the inverse analysis along with variable model restrictions to estimate 36 parameters. The model provided a satisfactory simultaneous fit (R-adj(2) = 0.93 and d = 0.87) of all the experimental data and reliable parameter estimates. This modeling study improved the understanding on fate and transport of estrogen conjugates under various soil-water conditions. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Bai, Xuelian; Casey, Francis X. M.] N Dakota State Univ, Dept Soil Sci, Fargo, ND 58108 USA.
[Shrestha, Suman L.] Bayer CropSci, Res Triangle Pk, NC 27709 USA.
[Hakk, Heldur] USDA ARS, Biosci Res Lab, Forgo, ND 58102 USA.
[Fan, Zhaosheng] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
RP Casey, FXM (reprint author), N Dakota State Univ, Dept Soil Sci, POB 6050, Fargo, ND 58108 USA.
EM Francis.Casey@ndsu.edu
RI Casey, Francis/A-2135-2010
OI Casey, Francis/0000-0002-6035-7234
FU Agriculture and Food Research Initiative Competitive Grant from the USDA
National Institute of Food and Agriculture [2010-65102-20400]
FX The authors sincerely thank Mrs. Colleen Pfaff (Biosciences Research
Laboratory, USDA-ARS, Fargo, ND) and Mr. Nathan Derby (Department of
Soil Science, North Dakota State University, Fargo, ND) for their
assistance on the research. We would like to acknowledge Dr. Jane Schuh
(Department of Veterinary and Microbiological Sciences, North Dakota
State University, Fargo, ND) for her support on the sterilization
procedure. This project is supported by Agriculture and Food Research
Initiative Competitive Grant No. 2010-65102-20400 from the USDA National
Institute of Food and Agriculture. Mention of trade names or commercial
products in this publication is solely for the purpose of providing
specific information and does not imply recommendation or endorsement by
the USDA. USDA is an equal opportunity provider and employer.
NR 38
TC 0
Z9 0
U1 3
U2 38
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0169-7722
EI 1873-6009
J9 J CONTAM HYDROL
JI J. Contam. Hydrol.
PD NOV 1
PY 2014
VL 168
BP 17
EP 24
DI 10.1016/j.jconhyd.2014.09.001
PG 8
WC Environmental Sciences; Geosciences, Multidisciplinary; Water Resources
SC Environmental Sciences & Ecology; Geology; Water Resources
GA AS7KT
UT WOS:000344435800002
PM 25247675
ER
PT J
AU Winger, AM
Heazlewood, JL
Chan, LJG
Petzold, CJ
Permaul, K
Singh, S
AF Winger, A. M.
Heazlewood, J. L.
Chan, L. J. G.
Petzold, C. J.
Permaul, K.
Singh, S.
TI Secretome analysis of the thermophilic xylanase hyper-producer
Thermomyces lanuginosus SSBP cultivated on corn cobs
SO JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY
LA English
DT Article
DE Thermomyces lanuginosus; Fungal secretome; Hemicellulase;
Lignocellulose; Industrial enzymes
ID BIOCHEMICAL CHARACTERISTICS; EXTRACELLULAR PROTEOME; STATISTICAL-MODEL;
FUNGUS; ENZYMES; PURIFICATION; DATABASE; HEMICELLULASES; INHIBITION;
SUBSTRATE
AB Thermomyces lanuginosus is a thermophilic fungus known for its ability to produce industrially important enzymes including large amounts of xylanase, the key enzyme in hemicellulose hydrolysis. The secretome of T. lanuginosus SSBP was profiled by shotgun proteomics to elucidate important enzymes involved in hemicellulose saccharification and to characterise the presence of other industrially interesting enzymes. This study reproducibly identified a total of 74 proteins in the supernatant following growth on corn cobs. An analysis of proteins revealed nine glycoside hydrolase (GH) enzymes including xylanase GH11, beta-xylosidase GH43, beta-glucosidase GH3, a-galactosidase GH36 and trehalose hydrolase GH65. Two commercially produced Thermomyces enzymes, lipase and amylase, were also identified. In addition, other industrially relevant enzymes not currently explored in Thermomyces were identified including glutaminase, fructose-bisphosphate aldolase and cyanate hydratase. Overall, these data provide insight into the novel ability of a cellulase-free fungus to utilise lignocellulosic material, ultimately producing a number of enzymes important to various industrial processes.
C1 [Winger, A. M.; Permaul, K.; Singh, S.] Durban Univ Technol, Dept Biotechnol & Food Technol, ZA-4001 Durban, South Africa.
[Heazlewood, J. L.; Chan, L. J. G.; Petzold, C. J.] Lawrence Berkeley Natl Lab, Joint BioEnergy Inst, Phys Biosciences Div, Berkeley, CA USA.
RP Singh, S (reprint author), Durban Univ Technol, Dept Biotechnol & Food Technol, ZA-4001 Durban, South Africa.
EM singhs@dut.ac.za
RI Heazlewood, Joshua/A-2554-2008;
OI Heazlewood, Joshua/0000-0002-2080-3826; Permaul,
Kugen/0000-0001-5032-3092
FU DUT; National Research Foundation, Republic of South Africa; Office of
Science, Office of Biological and Environmental Research, of the US
Department of Energy [DE-AC02-05CH11231]
FX The work conducted at the Durban University of Technology (DUT) was
supported by grants from DUT and the National Research Foundation,
Republic of South Africa. The work conducted by the Joint BioEnergy
Institute was supported by the Office of Science, Office of Biological
and Environmental Research, of the US Department of Energy under
Contract No. DE-AC02-05CH11231.
NR 41
TC 6
Z9 6
U1 4
U2 35
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1367-5435
EI 1476-5535
J9 J IND MICROBIOL BIOT
JI J. Ind. Microbiol. Biotechnol.
PD NOV
PY 2014
VL 41
IS 11
BP 1687
EP 1696
DI 10.1007/s10295-014-1509-1
PG 10
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA AS1TQ
UT WOS:000344064800011
PM 25223615
ER
PT J
AU Ounzain, S
Pezzuto, I
Micheletti, R
Burdet, F
Sheta, R
Nemir, M
Gonzales, C
Sarre, A
Alexanian, M
Blow, MJ
May, D
Johnson, R
Dauvillier, J
Pennacchio, LA
Pedrazzini, T
AF Ounzain, Samir
Pezzuto, Iole
Micheletti, Rudi
Burdet, Frederic
Sheta, Razan
Nemir, Mohamed
Gonzales, Christine
Sarre, Alexandre
Alexanian, Michael
Blow, Matthew J.
May, Dalit
Johnson, Rory
Dauvillier, Jerome
Pennacchio, Len A.
Pedrazzini, Thierry
TI Functional importance of cardiac enhancer-associated noncoding RNAs in
heart development and disease
SO JOURNAL OF MOLECULAR AND CELLULAR CARDIOLOGY
LA English
DT Article
DE Cardiac development; Heart failure; Gene regulation; Gene regulatory
networks; Enhancers; Long noncoding RNA (lncRNAs)
ID GENE-EXPRESSION; TRANSCRIPTION; CHROMATIN; MOUSE; CELLS;
DIFFERENTIATION; LINEAGE; GENOME; HYPERTROPHY; PROMOTERS
AB The key information processing units within gene regulatory networks are enhancers. Enhancer activity is associated with the production of tissue-specific noncoding RNAs, yet the existence of such transcripts during cardiac development has not been established. Using an integrated genomic approach, we demonstrate that fetal cardiac enhancers generate long noncoding RNAs (lncRNAs) during cardiac differentiation and morphogenesis. Enhancer expression correlates with the emergence of active enhancer chromatin states, the initiation of RNA polymerase II at enhancer loci and expression of target genes. Orthologous human sequences are also transcribed in fetal human hearts and cardiac progenitor cells. Through a systematic bioinformatic analysis, we identified and characterized, for the first time, a catalog of lncRNAs that are expressed during embryonic stem cell differentiation into cardiomyocytes and associated with active cardiac enhancer sequences. RNA-sequencing demonstrates that many of these transcripts are polyadenylated, multi-exonic long noncoding RNAs. Moreover, knockdown of two enhancer-associated lncRNAs resulted in the specific downregulation of their predicted target genes. Interestingly, the reactivation of the fetal gene program, a hallmark of the stress response in the adult heart, is accompanied by increased expression of fetal cardiac enhancer transcripts. Altogether, these findings demonstrate that the activity of cardiac enhancers and expression of their target genes are associated with the production of enhancer-derived lncRNAs. (c) 2014 The Authors. Published by Elsevier Ltd.
C1 [Ounzain, Samir; Pezzuto, Iole; Micheletti, Rudi; Sheta, Razan; Nemir, Mohamed; Gonzales, Christine; Alexanian, Michael; Pedrazzini, Thierry] Univ Lausanne, Dept Med, Expt Cardiol Unit, Sch Med, Lausanne, Switzerland.
[Burdet, Frederic; Dauvillier, Jerome] Univ Lausanne, Swiss Inst Bioinformat, VitalIT, Lausanne, Switzerland.
[Sarre, Alexandre] Univ Lausanne, Cardiovasc Assessment Facil, Lausanne, Switzerland.
[Blow, Matthew J.; May, Dalit; Pennacchio, Len A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Genom Div, Berkeley, CA 94720 USA.
[Blow, Matthew J.; May, Dalit; Pennacchio, Len A.] US DOE, Joint Genome Inst, Walnut Creek, CA USA.
[Johnson, Rory] Ctr Genom Regulat, Bioinformat & Genom Grp, Barcelona, Spain.
RP Ounzain, S (reprint author), Univ Lausanne, Dept Med, Expt Cardiol Unit, Sch Med, Lausanne, Switzerland.
EM samir.ounzain@chuv.ch; thierry.pedrazzini@chuv.ch
RI Blow, Matthew/G-6369-2012;
OI Blow, Matthew/0000-0002-8844-9149; Johnson, Rory/0000-0003-4607-2782
FU Swiss National Science Foundation [406340-128129]; NHGRI [R01HG003988];
United States Department of Energy Joint Genome Institute, Department of
Energy [DE-AC02-05CH11231]
FX This Work was supported by grants from the Swiss National Science
Foundation (T.P., grant no 406340-128129) within the frame of the
National Research Program 63 on "Stem Cells and Regenerative Medicine".
L.A.P. was supported by NHGRI grant R01HG003988. L.A.P., D.M. and M.J.B.
performed work at Lawrence Berkeley National Laboratory and at the
United States Department of Energy Joint Genome Institute, Department of
Energy Contract DE-AC02-05CH11231, University of California.
NR 57
TC 38
Z9 42
U1 2
U2 7
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-2828
EI 1095-8584
J9 J MOL CELL CARDIOL
JI J. Mol. Cell. Cardiol.
PD NOV
PY 2014
VL 76
BP 55
EP 70
DI 10.1016/j.yjmcc.2014.08.009
PG 16
WC Cardiac & Cardiovascular Systems; Cell Biology
SC Cardiovascular System & Cardiology; Cell Biology
GA AS3UF
UT WOS:000344202800007
PM 25149110
ER
PT J
AU Lee, KS
Kang, JW
Cha, JH
Kim, KS
AF Lee, Ki Sun
Kang, Jeong Won
Cha, Jong-Ho
Kim, Ki-Sub
TI Evolution of CdTe Nanoparticles Into Nanowires via Self-Assembly
SO JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
LA English
DT Article
DE CdTe; Self-Assembly; Self-Organization; Nanowire; Nanoparticle
ID NANOCRYSTALS; NANORODS; SHEETS; GROWTH
AB Cadmium telluride (CdTe) nanowires were successfully synthesized from individual nanoparticles via self-assembly, and the evolutionary process was investigated. The oxidation of tellurium ions in CdTe nanoparticles under dark conditions led to the assembly of straight nanowires made of several layers of individual nanoparticles. Transmission electron microscopy and scanning electron microscopy were performed to characterize the synthesized nanostructures. The length of the NWs assembled from CdTe NPs ranged from 0.5 to 30 mu m. Unlike generally prepared NWs, these NWs were made from individual NPs layered on top of each other. Remarkably, the assembly of individual NPs formed bundles during the intermediate steps before they unraveled into individual NWs. Both control of the amount of stabilizer and oxidation of Te ions acted as driving forces to form NWs. Thus, small modifications in synthesis yielded a major difference in the final nanomaterial structure. The suggested synthetic procedure provides a viable pathway for the fabrication of nanomaterials.
C1 [Lee, Ki Sun; Kim, Ki-Sub] Korea Natl Univ Transportat, Dept Chem & Biol Engn, Chungju 380702, South Korea.
[Kang, Jeong Won] Korea Natl Univ Transportat, Grad Sch Transportat, Dept Transportat Syst Engn, Uiwang Si 437763, Gyeonggi Do, South Korea.
[Kang, Jeong Won] Korea Natl Univ Transportat, Grad Sch, Dept IT Convergence, Chungju 380702, South Korea.
[Cha, Jong-Ho] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
RP Kang, JW (reprint author), Korea Natl Univ Transportat, Grad Sch Transportat, Dept Transportat Syst Engn, Uiwang Si 437763, Gyeonggi Do, South Korea.
FU Basic Science Research Program through the National Research Foundation
of Korea (NRF) - Ministry of Education, Science and Technology
[2012R1A1A2041510]; MSIP (Ministry of Science, ICT and Future Planning),
Korea, under the CITRC (Convergence Information Technology Research
Center) support program [NIPA-2013-H0401-13-2011]
FX This research was supported by Basic Science Research Program through
the National Research Foundation of Korea (NRF) funded by the Ministry
of Education, Science and Technology (2012R1A1A2041510) and partly
supported by the MSIP (Ministry of Science, ICT and Future Planning),
Korea, under the CITRC (Convergence Information Technology Research
Center) support program (NIPA-2013-H0401-13-2011) supervised by the NIPA
(National IT Industry Promotion Agency).
NR 17
TC 1
Z9 1
U1 1
U2 10
PU AMER SCIENTIFIC PUBLISHERS
PI VALENCIA
PA 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA
SN 1533-4880
EI 1533-4899
J9 J NANOSCI NANOTECHNO
JI J. Nanosci. Nanotechnol.
PD NOV
PY 2014
VL 14
IS 11
BP 8863
EP 8866
DI 10.1166/jnn.2014.10005
PG 4
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA AS2RE
UT WOS:000344126500134
PM 25958618
ER
PT J
AU Koschny, R
Boehm, C
Sprick, MR
Haas, TL
Holland, H
Xu, LX
Krupp, W
Mueller, WC
Bauer, M
Koschny, T
Keller, M
Sinn, P
Meixensberger, J
Walczak, H
Ganten, TM
AF Koschny, Ronald
Boehm, Christina
Sprick, Martin R.
Haas, Tobias L.
Holland, Heidrun
Xu, Li-Xin
Krupp, Wolfgang
Mueller, Wolf C.
Bauer, Manfred
Koschny, Thomas
Keller, Marius
Sinn, Peter
Meixensberger, Juergen
Walczak, Henning
Ganten, Tom M.
TI Bortezomib Sensitizes Primary Meningioma Cells to TRAIL-Induced
Apoptosis by Enhancing Formation of the Death-Inducing Signaling Complex
SO JOURNAL OF NEUROPATHOLOGY AND EXPERIMENTAL NEUROLOGY
LA English
DT Article
DE Apoptosis; Bortezomib; Chemotherapy; Meningioma; Primary meningioma
cells; TRAIL
ID HEPATOCELLULAR-CARCINOMA CELLS; MULTIPLE-MYELOMA; CHEMOTHERAPEUTIC
DRUGS; ANTICANCER THERAPY; MEDIATED APOPTOSIS; CANCER-CELLS;
TUMOR-CELLS; ACTIVATION; RESISTANCE; INHIBITION
AB A meningioma is the most common primary intracranial tumor in adults. Here, we investigated the therapeutic potential of the tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) in 37 meningiomas. Freshly isolated primary meningioma cells were treated with TRAIL with or without different sensitizing protocols, and apoptotic cell death was then quantified. Mechanisms of TRAIL sensitization were determined by a combination of Western blotting, flow cytometry, receptor complex immunoprecipitation, and siRNA-mediated knockdown experiments. Tumor necrosis factor-related apoptosis-inducing ligand receptor expression was analyzed using immunohistochemistry and quantified by an automated software-based algorithm. Primary tumor cells from 11 (29.7%) tumor samples were sensitive to TRAIL-induced apoptosis, 12 (32.4%) were intermediate TRAIL resistant, and 14 (37.8%) were completely TRAIL resistant. We tested synergistic apoptosis-inducing cotreatment strategies and determined that only the proteasome inhibitor bortezomib potently enhanced expression of the TRAIL receptors TRAIL-R1 and/or TRAIL-R2, the formation of the TRAIL death-inducing signaling complex, and activation of caspases; this treatment resulted in sensitization of all TRAIL-resistant meningioma samples to TRAIL-induced apoptosis. Bortezomib pretreatment induced NOXA expression and downregulated c-FLIP, neither of which caused the TRAIL-sensitizing effect. Native TRAIL receptor expression could not predict primary TRAIL sensitivity. This first report on TRAIL sensitivity of primary meningioma cells demonstrates that TRAIL/bortezomib cotreatment may represent a novel therapeutic option for meningiomas.
C1 [Koschny, Ronald; Ganten, Tom M.] Univ Heidelberg Hosp, Dept Gastroenterol, Heidelberg, Germany.
[Boehm, Christina] German Canc Res Ctr, Div Signaling & Funct Genom, Heidelberg, Germany.
[Boehm, Christina] Heidelberg Univ, Dept Cell & Mol Biol, Fac Med Mannheim, D-69115 Heidelberg, Germany.
[Sprick, Martin R.] German Canc Res Ctr Heidelberg, HI STEM GGmbH, Heidelberg, Germany.
[Haas, Tobias L.] Natl Canc Inst Regina Elena, Rome, Italy.
[Holland, Heidrun; Xu, Li-Xin] Univ Leipzig, Translat Ctr Regenerat Med Leipzig, D-04109 Leipzig, Germany.
[Holland, Heidrun; Xu, Li-Xin] Univ Leipzig, Fac Med, D-04109 Leipzig, Germany.
[Xu, Li-Xin; Krupp, Wolfgang; Meixensberger, Juergen] Univ Leipzig, Dept Neurosurg, D-04109 Leipzig, Germany.
[Mueller, Wolf C.; Bauer, Manfred] Univ Leipzig, Dept Neuropathol, D-04109 Leipzig, Germany.
[Koschny, Thomas] US DOE, Ames Lab, Ames, IA 50011 USA.
[Koschny, Thomas] Iowa State Univ, Dept Phys & Astron, Ames, IA USA.
[Keller, Marius] Univ Heidelberg Hosp, Dept Cardiol, Heidelberg, Germany.
[Sinn, Peter] Univ Heidelberg Hosp, Dept Pathol, Heidelberg, Germany.
[Walczak, Henning] UCL Canc Inst, Ctr Cell Death Canc & Inflammat, London, England.
RP Koschny, R (reprint author), Dept Internal Med, Neuenheimer Feld 410, D-69120 Heidelberg, Germany.
EM ronald.koschny@med.uni-heidelberg.de
RI Sprick, Martin/A-8611-2008
OI Sprick, Martin/0000-0001-9691-7574
FU Cancer Research UK
FX Henning Walczak is supported by a Cancer Research UK program grant.
NR 43
TC 6
Z9 7
U1 0
U2 6
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0022-3069
EI 1554-6578
J9 J NEUROPATH EXP NEUR
JI J. Neuropathol. Exp. Neurol.
PD NOV
PY 2014
VL 73
IS 11
BP 1034
EP 1046
DI 10.1097/NEN.0000000000000129
PG 13
WC Clinical Neurology; Neurosciences; Pathology
SC Neurosciences & Neurology; Pathology
GA AS5YP
UT WOS:000344342700005
PM 25289891
ER
PT J
AU Amoroso, J
Marra, JC
Tang, M
Lin, Y
Chen, FL
Su, D
Brinkman, KS
AF Amoroso, Jake
Marra, James C.
Tang, Ming
Lin, Ye
Chen, Fanglin
Su, Dong
Brinkman, Kyle S.
TI Melt processed multiphase ceramic waste forms for nuclear waste
immobilization
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID SYNROC; HOLLANDITE; CESIUM
AB Ceramic waste forms are promising hosts for nuclear waste immobilization as they have the potential for increased durability and waste loading compared with conventional borosilicate glass waste forms. Ceramics are generally processed using hot pressing, spark plasma sintering, and conventional solid-state reaction, however such methods can be prohibitively expensive or impractical at production scales. Recently, melt processing has been investigated as an alternative to solid-state sintering methods. Given that melter technology is currently in use for High Level Waste (HLW) vitrification in several countries, the technology readiness of melt processing appears to be advantageous over sintering methods. This work reports the development of candidate multi-phase ceramic compositions processed from a melt. Cr additions, developed to promote the formation and stability of a Cs containing hollandite phase were successfully incorporated into melt processed multi-phase ceramics. Control of the reduction-oxidation (Redox) conditions suppressed undesirable Cs-Mo containing phases, and additions of Al and Fe reduced the melting temperature. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Amoroso, Jake; Marra, James C.] Savannah River Natl Lab, Aiken, SC 29808 USA.
[Tang, Ming] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Lin, Ye; Chen, Fanglin] Univ S Carolina, Columbia, SC 29208 USA.
[Su, Dong] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Brinkman, Kyle S.] Clemson Univ, Clemson, SC 29634 USA.
RP Amoroso, J (reprint author), Savannah River Natl Lab, Aiken, SC 29808 USA.
EM jake.amoroso@srs.gov
RI Chen, Fanglin/K-1039-2012;
OI Chen, Fanglin/0000-0001-9942-8872; Brinkman, Kyle/0000-0002-2219-1253
FU U.S. Department of Energy [DE-AC09-08SR22470]; U.S. Department of
Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886]; DOE-NE
Materials Recovery and Waste Form Development program
FX This document was prepared in conjunction with work accomplished under
Contract No. DE-AC09-08SR22470 with the U.S. Department of Energy. TEM
was carried out at the Center for Functional Nanomaterials, Brookhaven
National Laboratory, which is supported by the U.S. Department of
Energy, Office of Basic Energy Sciences, under contract no.
DE-AC02-98CH10886. The authors acknowledge gratefully the financial
support of the DOE-NE Materials Recovery and Waste Form Development
program including program support from James Bresee, Kimberly Gray,
Terry Todd and John Vienna. David Missimer is acknowledged gratefully
for processing and characterization work.
NR 19
TC 7
Z9 7
U1 9
U2 38
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 12
EP 21
DI 10.1016/j.jnucmat.2014.07.035
PG 10
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900003
ER
PT J
AU Angle, JP
Nelson, AT
Men, D
Mecartney, ML
AF Angle, Jesse P.
Nelson, Andrew T.
Men, Danju
Mecartney, Martha L.
TI Thermal measurements and computational simulations of three-phase
(CeO2-MgAl2O4-CeMgAl11O19) and four-phase (3Y-TZP-Al2O3-MgAl2O4-LaPO4)
composites as surrogate inert matrix nuclear fuel
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID OXIDE FUELS; CONDUCTIVITY; RESISTANCE; MICROSTRUCTURES; CERAMICS;
BEHAVIOR; ALUMINA; PHASE
AB This study investigates the temperature dependent thermal conductivity of multiphase ceramic composites for simulated inert matrix nuclear fuel. Fine grained composites were made of CeO2-MgAl2O4-CeMgAl11O19 or 3Y-TZP-Al2O3-MgAl2O4-LaPO4. CeO2 and 3Y-TZP are used as UO2 surrogates due to their similar structures and low thermal conductivities. Laser flash analysis from room temperature to 1273K (1000 degrees C) was used to determine the temperature dependent thermal conductivity. A computational approach using Object Oriented Finite Element Analysis Version 2 (OOF2) was employed to simulate the composite thermal conductivity based on the microstructure. Observed discrepancies between experimental and simulated thermal conductivities at low temperature may be due to Kapitza resistance; however, there is less than 3% deviation between models and experiments above 673 K (400 degrees C) for both compositions. When the surrogate phase was replaced with UO2 in the computational model for the four-phase composite, a 12-16% increase in thermal conductivity resulted compared to single phase UO2, in the range of 673-1273 K (400-1000 degrees C). This computational approach may be potentially viable for the high-throughput evaluation of composite systems and the strategic selection of inert phases without extensive sample fabrication during the initial development stages of composite nuclear fuel design. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Angle, Jesse P.; Men, Danju; Mecartney, Martha L.] Univ Calif Irvine, Dept Chem Engn & Mat Sci, Irvine, CA 92697 USA.
[Nelson, Andrew T.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
RP Mecartney, ML (reprint author), Univ Calif Irvine, Dept Chem Engn & Mat Sci, Irvine, CA 92697 USA.
EM martham@uci.edu
FU U.S. Department of Energy [DE-NE0000711]; NSF [DMR-0606063]; agency of
the United States Government; U.S. Department of Education Graduate
Assistance in Areas of National Need (GAANN) Fellowship
FX This research is supported by the U.S. Department of Energy funding
under grant DE-NE0000711. Some of the materials were developed under an
NSF DMR-0606063 grant. This report was prepared as an account of work
sponsored by an agency of the United States Government. Neither the
United States Government nor any agency thereof, nor any of their
employees, makes any warranty, express or implied, or assumes any legal
liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process disclosed,
or represents that its use would not infringe privately owned rights.
Reference herein to any specific commercial product, process, or service
by trade name, trademark, manufacturer, or otherwise does not
necessarily constitute or imply its endorsement, recommendation, or
favoring by the United States Government or any agency thereof. The
views and opinions of authors expressed herein do not necessarily state
or reflect those of the United States Government or any agency thereof.
The authors acknowledge the use of the UC Irvine Laboratory for Electron
and X-Ray instrumentation (LEXI). A U.S. Department of Education
Graduate Assistance in Areas of National Need (GAANN) Fellowship
provided additional graduate student support for JPA.
NR 33
TC 1
Z9 1
U1 4
U2 34
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 69
EP 76
DI 10.1016/j.jnucmat.2014.07.039
PG 8
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900010
ER
PT J
AU Perron, A
Turchi, PEA
Landa, A
Soderlind, P
Ravat, B
Oudot, B
Delaunay, F
Kurata, M
AF Perron, A.
Turchi, P. E. A.
Landa, A.
Soederlind, P.
Ravat, B.
Oudot, B.
Delaunay, F.
Kurata, M.
TI Thermodynamic re-assessment of the Pu-U system and its application to
the ternary Pu-U-Ga system
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID PHASE-TRANSFORMATIONS; PLUTONIUM-URANIUM; MATERIALS SCIENCE; ACTINIDE
ALLOYS; THERMO-CALC; ZR SYSTEM; EQUILIBRIA; DIAGRAM; CHALLENGES
AB Phase diagram and thermodynamic properties of the Plutonium-Uranium (Pu-U) system have been successfully re-assessed using the CALPHAD method with input from ab initio electronic-structure calculations for the bcc phase (gamma-U, is an element of-Pu). Results and methodology are discussed and compared with previous assessments. In addition, the already assessed Pu-Ga (Gallium) and U-Ga data are combined to build the Pu-U-Ga thermodynamic database. The predictions made using this database indicate that a small amount of U impacts the (delta-Pu) Pu-Ga phase stability by precipitating the complicated eta and zeta phases that exist in the Pu-U system. Finally, the present investigation provides guidelines for further experimental studies. Published by Elsevier B.V.
C1 [Perron, A.; Turchi, P. E. A.; Landa, A.; Soederlind, P.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Ravat, B.; Oudot, B.; Delaunay, F.] CEA Ctr Valduc, F-21120 Is Sur Tille, France.
[Kurata, M.] JAEA, Nucl Sci & Engn Directorate, Tokai, Ibaraki 3191195, Japan.
RP Perron, A (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM perron1@llni.gov
OI Perron, Aurelien/0000-0002-5280-003X
FU U.S Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Laboratory Directed Research and Development
Program [12-SI-008]; CEA-Centre de Valduc (France); Post-doctoral
program at LLNL; DOE-NNSA; CEA-DAM
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. Work at LLNL was funded by the Laboratory Directed
Research and Development Program under project tracking code 12-SI-008.
This work was done as part of the international agreement on cooperation
between DOE-NNSA and CEA-DAM in fundamental science supporting stockpile
stewardship. A.P. gratefully acknowledges the financial support from the
CEA-Centre de Valduc (France), the Post-doctoral program at LLNL, and M.
Fluss for a thorough reading of the manuscript.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 81
EP 95
DI 10.1016/j.jnucmat.2014.07.051
PG 15
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900012
ER
PT J
AU Yang, Y
Lo, WY
Dickerson, C
Allen, TR
AF Yang, Yong
Lo, Wei-Yang
Dickerson, Clayton
Allen, Todd R.
TI Stoichiometry effect on the irradiation response in the microstructure
of zirconium carbides
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID COATED FUEL-PARTICLES; ZRC; VOIDS
AB Zone-refined ultra high pure ZrC with five C/Zr ratios ranging from 0.84 to 1.17 was irradiated using a 2 MeV proton beam at 1125 degrees C. The stoichiometry effect on the irradiation response of ZrC microstructure was examined using transmission electron microscopy following the irradiation. The irradiated microstructures generally feature a high density of perfect dislocation loops particularly at away from the graphite precipitates, and the C/Zr ratio shows a notable effect on the size and density of dislocation loops. The dislocation loops are identified as interstitial type perfect loops, and it was indirectly proved that the dislocation loop core likely consists of carbon atoms. Graphite precipitates that form with excess carbon in the super-stoichiometric ZrC are detrimental, and the dramatic increases in the size of and density of dislocation loops in the vicinity of graphite precipitates in ZrC phase were observed. Irradiation-induced faceted voids were only observed in ZrC0.95, which is attributed to the pre-existing dislocation lines as biased sinks for vacancies. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Yang, Yong; Lo, Wei-Yang] Univ Florida, Nucl Engn Program, Gainesville, FL 32611 USA.
[Dickerson, Clayton] Argonne Natl Lab, Lemont, IL 60439 USA.
[Allen, Todd R.] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA.
[Allen, Todd R.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Yang, Y (reprint author), Univ Florida, Nucl Engn Program, Gainesville, FL 32611 USA.
EM yongyang@ufl.edu
OI Allen, Todd/0000-0002-2372-7259
FU U.S. Department of Energy
FX The present study is the result of "Deep Burn: Development of
Transuranic Fuel and Fuel Cycles for High Temperature Gas-Cooled
Reactor," supported by the U.S. Department of Energy. The authors would
like to thank Y. Katoh, J.D. Hunn of the Oak Ridge National Laboratory
for providing the zone-refined ZrC materials.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 130
EP 135
DI 10.1016/j.jnucmat.2014.07.071
PG 6
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900018
ER
PT J
AU Mohamed, W
Yun, D
Mo, K
Pellin, MJ
Billone, MC
Almer, J
Yacout, AM
AF Mohamed, Walid
Yun, Di
Mo, Kun
Pellin, Michael J.
Billone, Michael C.
Almer, Jonathan
Yacout, Abdellatif M.
TI Depth profile of oxide volume fractions of Zircaloy-2 in.
high-temperature steam: An in-situ synchrotron radiation study
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID X-RAY-DIFFRACTION; OXIDATION-KINETICS; ZIRCONIUM ALLOYS; QUANTITATIVE
MEASUREMENT; INDUCED MARTENSITE; PHASE-DIAGRAM; CORROSION; PRESSURE;
STRAIN; STEEL
AB To study the steam oxidation behavior of Zircaloy-2, a high-energy synchrotron X-ray diffraction technique was applied to perform an in-situ oxidation measurement. The depth profiles of oxide volume fractions were obtained at both 600 and 800 degrees C. Multiple layers, including ZrO2 scale, (beta + beta) Zr matrix with ZrO2 incursions, and (alpha + beta) Zr matrix, were mapped according to the volume fraction of each phase. The volume fractions of these phases were observed to change gradually with different distances to the surface, without a sharp edge distinguishing each of the layers. The ZrO2 consisted of tetragonal and monoclinic crystal structures, which were observed to coexist with different ratios of volume fractions in depth. The higher amount of tetragonal ZrO2 observed in the very inner region of the oxidizing Zircaloy sample indicates that the tetragonal crystal structure is the ab initio phase type, in which new oxide molecules form at the metal-oxide interface. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Mohamed, Walid; Yun, Di; Mo, Kun; Billone, Michael C.; Yacout, Abdellatif M.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Pellin, Michael J.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Almer, Jonathan] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Mo, K (reprint author), Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
EM kunmo@anl.gov
RI Pellin, Michael/B-5897-2008
OI Pellin, Michael/0000-0002-8149-9768
FU 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. Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-06CH11357.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 192
EP 199
DI 10.1016/j.jnucmat.2014.07.018
PG 8
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900028
ER
PT J
AU Kim, YS
Park, JM
Lee, KH
Yoo, BO
Ryu, HJ
Ye, B
AF Kim, Yeon Soo
Park, J. M.
Lee, K. H.
Yoo, B. O.
Ryu, H. J.
Ye, B.
TI In-pile test results of U-silicide or U-nitride coated U-7Mo particle
dispersion fuel in Al
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID INTERACTION LAYER GROWTH; MO DISPERSION; DEGREES-C; ALLOY; SI;
INTERDIFFUSION; URANIUM; IRRADIATION; ALUMINUM; MATRIX
AB U-silicide or U-nitride coated U-Mo particle dispersion fuel in Al (U-Mo/Al) was in-pile tested to examine the effectiveness of the coating as a diffusion barrier between the U-7Mo fuel kernels and Al matrix. This paper reports the PIE data and analyses focusing on the effectiveness of the coating in terms of interaction layer (IL) growth and general fuel performance. The U-silicide coating showed considerable success, but it also provided evidence for additional improvement for coating process. The U-nitride coated specimen showed largely inefficient results in reducing IL growth. From the test, important observations were also made that can be utilized to improve U-Mo/Al fuel performance. The heating process for coating turned out to be beneficial to suppress fuel swelling. The use of larger fuel particles confirmed favorable effects on fuel performance. (C)2014 Elsevier B.V. All rights reserved.
C1 [Kim, Yeon Soo; Ye, B.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Park, J. M.; Lee, K. H.; Yoo, B. O.] Korea Atom Energy Res Inst, Taejon 305353, South Korea.
[Ryu, H. J.] Korea Adv Inst Sci & Technol, Dept Nucl & Quantum Engn, Taejon 305701, South Korea.
RP Kim, YS (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM yskim@anl.gov
RI RYU, HO JIN/J-2764-2013
OI RYU, HO JIN/0000-0002-3387-7381
FU National Research Foundation of Korea (NRF) - Ministry of Science, ICT
and Future Planning (MSIP) of Republic of Korea [NRF-2013M2A8A1041241];
UChicago Argonne, LCC as Operator of Argonne National Laboratory
[DE-AC-02-06CH11357]
FX This study was supported by the National Research Foundation of Korea
(NRF) grant funded by the Ministry of Science, ICT and Future Planning
(MSIP) of Republic of Korea (NRF-2013M2A8A1041241) and the ANL
contribution was supported by the UChicago Argonne, LCC as Operator of
Argonne National Laboratory under Contract No. DE-AC-02-06CH11357
between UChicago Argonne, LLC and the US Department of Energy.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 238
EP 246
DI 10.1016/j.jnucmat.2014.08.005
PG 9
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900034
ER
PT J
AU Pakarinen, J
Khafizov, M
He, LF
Wetteland, C
Gan, J
Nelson, AT
Hurley, DH
El-Azab, A
Allen, TR
AF Pakarinen, Janne
Khafizov, Marat
He, Lingfeng
Wetteland, Chris
Gan, Jian
Nelson, Andrew T.
Hurley, David H.
El-Azab, Anter
Allen, Todd R.
TI Microstructure changes and thermal conductivity reduction in UO2
following 3.9 MeV He2+ ion irradiation
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID URANIUM-DIOXIDE; SINGLE-CRYSTALS; SOLID-SOLUTIONS; NUCLEAR-FUELS;
BURN-UP; LATTICE; CERAMICS; EVOLUTION; BEHAVIOR; DEFECTS
AB The microstructural changes and associated effects on thermal conductivity were examined in UO2 after irradiation using 3.9 MeV He2+ ions. Lattice expansion of UO2 was observed in X-ray diffraction after ion irradiation up to 5 x 1016 He2+/cm(2) at low-temperature (<200 degrees C). Transmission electron microscopy (TEM) showed homogenous irradiation damage across an 8 mu m thick plateau region, which consisted of small dislocation loops accompanied by dislocation segments. Dome-shaped blisters were observed at the peak damage region (depth around 8.5 mu m) in the sample subjected to 5 x 10(16) He2+/cm(2), the highest fluence reached, while similar features were not detected at 9 x 10(15) He2+/cm(2). Laser-based thermoreflectance measurements showed that the thermal conductivity for the irradiated layer decreased about 55% for the high fluence sample and 35% for the low fluence sample as compared to an un-irradiated reference sample. Detailed analysis for the thermal conductivity indicated that the conductivity reduction was caused by the irradiation induced point defects. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Pakarinen, Janne; He, Lingfeng; Allen, Todd R.] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA.
[Khafizov, Marat; Gan, Jian; Hurley, David H.; Allen, Todd R.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Wetteland, Chris] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Nelson, Andrew T.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
[El-Azab, Anter] Purdue Univ, Sch Nucl Engn, W Lafayette, IN 47907 USA.
RP Pakarinen, J (reprint author), SCK CEN, Belgian Nucl Res Ctr, Boeretang 200, B-2400 Mol, Belgium.
EM jmpaka@gmail.com
RI Khafizov, Marat/B-3744-2012;
OI Khafizov, Marat/0000-0001-8171-3528; Allen, Todd/0000-0002-2372-7259;
He, Lingfeng/0000-0003-2763-1462
FU Center for Materials Science of Nuclear Fuel, Energy Frontier Research
Center; U.S. Department of Energy, Office of Science, Office of Basic
Energy Sciences; U.S. Department of Energy, Office of Nuclear Energy
under DOE Idaho Operations Office, ATR National Scientific
[DE-AC07-051D14517]
FX This work was supported as a part of the Center for Materials Science of
Nuclear Fuel, an Energy Frontier Research Center funded by the U.S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences. The FIB and TEM work was supported by the U.S. Department of
Energy, Office of Nuclear Energy under DOE Idaho Operations Office
Contract DE-AC07-051D14517, as part of an ATR National Scientific User
Facility experiment.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 283
EP 289
DI 10.1016/j.jnucmat.2014:07.053
PG 7
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900039
ER
PT J
AU Turchi, PEA
Ivashchenko, VI
AF Turchi, P. E. A.
Ivashchenko, V. I.
TI First-principles study of the Pd-Si system and Pd(001)/SiC(001)
hetero-structure
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID CRYSTAL-STRUCTURE; C SYSTEM
AB First-principles molecular dynamics simulations of the Pd(001)/3C-SiC(001) nano-layered structure were carried out at different temperatures ranging from 300 to 2100 K. Various PdSi (Pnma, Fm3m, p6m2, pm3m), Pd2Si (P62m, P6(3)/mmc, p3m1, P31m) and Pd3Si (Pnma, P6(3)22, pm3m, I4/mmm) structures under pressure were studied to identify the structure of the Pd/Si and Pd/C interfaces in the Pd/SiC systems at high temperatures. It was found that a large atomic mixing at the Pd/Si interface occurred at 1500-1800K, whereas the Pd/C interface remained sharp even at the highest temperature of 2100 K. At the Pd/C interface, voids and a graphite-like clustering were detected. Palladium and silicon atoms interact at the Pd/Si interface to mostly form C22-Pd2Si and D0(11)-Pd3Si fragments, in agreement with experiment. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Turchi, P. E. A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Ivashchenko, V. I.] NAS Ukraine, Inst Problems Mat Sci, UA-03142 Kiev, Ukraine.
RP Turchi, PEA (reprint author), Lawrence Livermore Natl Lab, L-352,7000 East Ave, Livermore, CA 94551 USA.
FU Laboratory Directed Research and Development Program at LLNL
[12-SI-008]; STCU [5539]; U.S. Department of Energy by Lawrence
Livermore National Laboratory [DE-AC52-07NA27344]
FX The work of P.T. was performed under the auspices of the U.S. Department
of Energy by the Lawrence Livermore National Laboratory under contract
No. DE-AC52-07NA27344, and supported by the Laboratory Directed Research
and Development Program at LLNL under project tracking code 12-SI-008.
The work of V.I. was supported by the STCU contract No. 5539.
NR 17
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PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 308
EP 314
DI 10.1016/j.jnucmat.2014.08.025
PG 7
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900042
ER
PT J
AU Field, KG
Gussev, MN
Yamamoto, Y
Snead, LL
AF Field, Kevin G.
Gussev, Maxim N.
Yamamoto, Yukinori
Snead, Lance L.
TI Deformation behavior of laser welds in high temperature oxidation
resistant Fe-Cr-Al alloys for fuel cladding applications
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID STAINLESS-STEEL; CREEP; STEAM
AB Ferritic-structured Fe-Cr-Al alloys are being developed and show promise as oxidation resistant accident tolerant light water reactor fuel cladding. This study focuses on investigating the weldability and postweld mechanical behavior of three model alloys in a range of Fe-(13-17.5)Cr-(3-4.4)Al (wt.%) with a minor addition of yttrium using modern laser-welding techniques. A detailed study on the mechanical performance of bead-on-plate welds using sub-sized, flat dog-bone tensile specimens and digital image correlation (DIC) has been carried out to determine the performance of welds as a function of alloy composition. Results indicated a reduction in the yield strength within the fusion zone compared to the base metal. Yield strength reduction was found to be primarily constrained to the fusion zone due to grain coarsening with a less severe reduction in the heat affected zone. For all proposed alloys, laser welding resulted in a defect free weld devoid of cracking or inclusions. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Field, Kevin G.; Gussev, Maxim N.; Yamamoto, Yukinori; Snead, Lance L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Field, KG (reprint author), Div Mat Sci & Technol, POB 2008, Oak Ridge, TN 37831 USA.
EM fieldkg@ornl.gov; gussevmn@ornl.gov; yamamotoy@ornl.gov;
sneadll@ornl.gov
RI Chen, Ru/A-5105-2015
FU U.S. Department of Energy's Office of Nuclear Energy, Advanced Fuel
Campaign of the Fuel Cycle RD program; UT-Battelle LLC
[DE-AC05-00OR22725]; US Department of Energy [DE-AC05-00OR22725]
FX This research was funded by the U.S. Department of Energy's Office of
Nuclear Energy, Advanced Fuel Campaign of the Fuel Cycle R&D program.
Authors would like to thank D.A. Fredrick and R.G. Miller from Oak Ridge
National Laboratory for their fruitful discussions and assistance with
conducting the welding trials.; This manuscript has been authored by the
Oak Ridge National Laboratory, managed by UT-Battelle LLC under Contract
No. DE-AC05-00OR22725 with the US Department of Energy. The US
Government retains and the publisher, by accepting the article for
publication, acknowledges that the US Government retains a nonexclusive,
paid-up, irrevocable, worldwide license to publish or reproduce the
published form of this manuscript, or allow others to do so, for US
Government purposes.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 352
EP 358
DI 10.1016/j.jnucmat.2014.08.013
PG 7
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900047
ER
PT J
AU Silva, CM
Lindemer, TB
Voit, SR
Hunt, RD
Besmann, TM
Terrani, KA
Snead, LL
AF Silva, Chinthaka M.
Lindemer, Terrence B.
Voit, Stewart R.
Hunt, Rodney D.
Besmann, Theodore M.
Terrani, Kurt A.
Snead, Lance L.
TI Characteristics of uranium carbonitride microparticles synthesized using
different reaction conditions
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID NITRIDE; MICROSPHERES; MONONITRIDE; KERNELS
AB Three sets of experimental conditions were tested to synthesize uranium carbonitride (UC1-xNx) kernels from gel-derived urania-carbon microspheres. Primarily, three sequences of gases were used, N-2 to N-2-4%H-2 to Ar, Ar to N-2 to Ar, and Ar-4%H-2 to N-2-4%H-2 to Ar-4%H-2. Physical and chemical characteristics such as geometrical density, phase purity, and chemical compositions of the synthesized UC1-xNx were measured. Single-phase kernels were commonly obtained with densities generally ranging from 85% to 93% TD and values of x as high as 0.99. In-depth analysis of the microstrutures of UC1-xNx has been carried out and is discussed with the objective of large batch fabrication of high density UC1-xNx kernels. Published by Elsevier B.V.
C1 [Silva, Chinthaka M.; Voit, Stewart R.; Hunt, Rodney D.; Besmann, Theodore M.; Terrani, Kurt A.; Snead, Lance L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Silva, Chinthaka M.] Univ Tennessee, Knoxville, TN 37996 USA.
[Lindemer, Terrence B.] MPi Business Solut Inc, Knoxville, TN 37915 USA.
RP Silva, CM (reprint author), Univ Tennessee, Knoxville, TN 37996 USA.
EM silvagw@ornl.gov
FU U.S. Department of Energy [DE-ACO5-00OR22725]; UT-Battelle, LLC
FX This effort was sponsored by the U.S. Department of Energy through the
Office of Nuclear Energy, Science and Technology's Fuel Cycle Research
and Development Program under contract DE-ACO5-00OR22725 with
UT-Battelle, LLC.
NR 17
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U1 1
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PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 405
EP 412
DI 10.1016/j.jnucmat.2014.08.038
PG 8
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900053
ER
PT J
AU Barashev, AV
Xu, H
Stoller, RE
AF Barashev, A. V.
Xu, H.
Stoller, R. E.
TI The behavior of small helium clusters near free surfaces in tungsten
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID MONTE-CARLO-SIMULATION; POINT-DEFECTS; DYNAMICS; IRON; HE
AB The results of a computational study of helium vacancy clusters in tungsten are reported. A recently developed atomistic kinetic Monte Carlo method employing empirical interatomic potentials was used to investigate the behavior of clusters composed of three interstitial-helium atoms near {1 1 1}, {1 1 0} and {1 0 0} free surfaces. Multiple configurations were examined and the local energy landscape was characterized to determine cluster mobility and the potential for interactions with the surface. The clusters were found to be highly mobile if far from the surface, but were attracted and bound to the surface when within a distance of a few lattice parameters. When near the surface, the clusters were transformed into an immobile configuration due to the creation of a Frenkel pair; the vacancy was incorporated into what became a He-3-vacancy complex. The corresponding interstitial migrated to and became an adatom on the free surface. This process can contribute to He retention, and may be responsible for the observed deterioration of the plasma-exposed tungsten surfaces. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Barashev, A. V.; Xu, H.; Stoller, R. E.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Barashev, A. V.; Xu, H.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
RP Xu, H (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
EM xhx@utk.edu
RI Xu, Haixuan/C-9841-2009
FU U.S. Department of Energy, Office of Science [DE-SC0008875]; U.S.
Department of Energy, Office of Fusion Energy Sciences [DE-SC0008875];
U.S. Department of Energy, Office of Advanced Scientific Computing
Research [DE-SC0008875]
FX This material is based upon work supported by the U.S. Department of
Energy, Office of Science, Office of Fusion Energy Sciences and Office
of Advanced Scientific Computing Research through the Scientific
Discovery through Advanced Computing (SciDAC) project on Plasma-Surface
Interactions, under Award No. DE-SC0008875.
NR 22
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U1 0
U2 16
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 421
EP 426
DI 10.1016/j.jnucmat.2014.08.033
PG 6
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900055
ER
PT J
AU Gan, J
Miller, BD
Keiser, DD
Robinson, AB
Madden, JW
Medvedev, PG
Wachs, DM
AF Gan, J.
Miller, B. D.
Keiser, D. D., Jr.
Robinson, A. B.
Madden, J. W.
Medvedev, P. G.
Wachs, D. M.
TI Microstructural characterization of irradiated U-7Mo/Al-5Si dispersion
fuel to high fission density
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
AB The fuel development program for research and test reactors calls for improved knowledge on the effect of microstructure on fuel performance in reactors. This paper summarizes the recent TEM microstructural characterization of an irradiated U-7Mo/Al-5Si dispersion fuel plate (R3R050) in the Advanced Test Reactor (ATR) at Idaho National Laboratory (INL) to 5.2 x 10(21) fissions/cm(3). While a large fraction of the fuel grains is decorated with large bubbles, there is no evidence showing interlinking of these bubbles at the specified fission density. The attachment of solid fission product precipitates to the bubbles is likely the result of fission product diffusion into these bubbles. The process of fission gas bubble superlattice collapse appears through bubble coalescence. The results are compared with the previous TEM work on the dispersion fuels irradiated to lower fission density from the same fuel plate. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Gan, J.; Miller, B. D.; Keiser, D. D., Jr.; Robinson, A. B.; Madden, J. W.; Medvedev, P. G.; Wachs, D. M.] Idaho Natl Lab, Nucl Fuels & Mat Div, Idaho Falls, ID 83415 USA.
RP Gan, J (reprint author), Idaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA.
EM jian.Gan@in1.gov
FU U.S. Department of Energy, Office of Nuclear Materials Threat Reduction
[NA-212]; National Nuclear Security Administration, under DOE-NE Idaho
Operations Office [DE-AC07-05ID14517]
FX Acknowledgment is given to the INL Hot Fuel Examination Facility staff
for producing the sample from fuel plate R3R050. This work was supported
by the U.S. Department of Energy, Office of Nuclear Materials Threat
Reduction (NA-212), National Nuclear Security Administration, under
DOE-NE Idaho Operations Office Contract DE-AC07-05ID14517. Accordingly,
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.
NR 17
TC 4
Z9 4
U1 1
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD NOV
PY 2014
VL 454
IS 1-3
BP 434
EP 445
DI 10.1016/j.jnucmat.2014.08.052
PG 12
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA AS7IA
UT WOS:000344428900057
ER
PT J
AU Baessler, S
Bowman, JD
Penttila, S
Pocanic, D
AF Baessler, S.
Bowman, J. D.
Penttilae, S.
Pocanic, D.
TI New precision measurements of free neutron beta decay with cold neutrons
SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
LA English
DT Article
DE beta decay; precision measurements; cold neutrons
ID INELASTICALLY SCATTERED NEUTRONS; ANGULAR-CORRELATION COEFFICIENT;
STORING ULTRACOLD NEUTRONS; LIFETIME MEASUREMENT; POLARIZED NEUTRONS;
GA-GV; ASYMMETRY; TRAP; SPECTROMETER; PARAMETERS
AB Precision measurements in free neutron beta decay serve to determine the coupling constants of beta decay, and offer several stringent tests of the standard model. This paper describes the free neutron beta decay program planned for the Fundamental Physics Beamline at the Spallation Neutron Source at Oak Ridge National Laboratory, and puts it into the context of other recent and planned measurements of neutron beta decay observables.
C1 [Baessler, S.; Pocanic, D.] Univ Virginia, Charlottesville, VA 22904 USA.
[Baessler, S.; Bowman, J. D.; Penttilae, S.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Baessler, S (reprint author), Univ Virginia, Charlottesville, VA 22904 USA.
EM baessler@virginia.edu
FU Office of Nuclear Physics in the Office of Science of the Department of
Energy; National Science Foundation [PHY-0653356, PHY-0855610,
PHY-0970013, PHY-1205833, PHY-1307328]
FX We thank the members of the Nab collaboration, and H Abele, B Markisch,
J Nico, T Soldner and F Wietfeldt, for help in the preparation of the
manuscript. We gratefully acknowledge support from the Office of Nuclear
Physics in the Office of Science of the Department of Energy, and the
National Science Foundation, through NSF grants PHY-0653356, -0855610,
-0970013, -1205833 and -1307328.
NR 89
TC 7
Z9 7
U1 2
U2 11
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0954-3899
EI 1361-6471
J9 J PHYS G NUCL PARTIC
JI J. Phys. G-Nucl. Part. Phys.
PD NOV
PY 2014
VL 41
IS 11
AR 114003
DI 10.1088/0954-3899/41/11/114003
PG 32
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA AS2DT
UT WOS:000344090500005
ER
PT J
AU Rajabali, MM
Grzywacz, R
Liddick, SN
Mazzocchi, C
Batchelder, JC
Baumann, T
Bingham, CR
Darby, IG
Ginter, TN
Ilyushkin, SV
Karny, M
Krolas, W
Mantica, PF
Miernik, K
Pfutzner, M
Rykaczewski, KP
Weisshaar, D
Winger, JA
AF Rajabali, M. M.
Grzywacz, R.
Liddick, S. N.
Mazzocchi, C.
Batchelder, J. C.
Baumann, T.
Bingham, C. R.
Darby, I. G.
Ginter, T. N.
Ilyushkin, S. V.
Karny, M.
Krolas, W.
Mantica, P. F.
Miernik, K.
Pfuetzner, M.
Rykaczewski, K. P.
Weisshaar, D.
Winger, J. A.
TI beta decay of Co-72 and microsecond isomers in even-mass neutron-rich
nickel isotopes
SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
LA English
DT Article
DE beta decay; gamma spectroscopy; isomer; nickel; cobalt
ID NUCLEI
AB A new excited state at 2164 keV has been identified in Ni-72 with tentative spin and parity of 4(+) based on comparison to shell model calculations. This level is suggested to be populated via the beta-decay of an isomeric state in Co-72, and is postulated to be one of the key states that play a role in the disappearance of isomers in Ni-72,Ni-74. The known low-energy levels in Ni-72 are compared with results of shell model calculations using the NR78 interaction to follow the seniority of the observed states. In addition, the half-life of the 8(+) isomer in Ni-76 has been measured as 630(90) ns and the full cascade of transitions from this isomer has been verified experimentally in this work.
C1 [Rajabali, M. M.; Grzywacz, R.; Liddick, S. N.; Mazzocchi, C.; Bingham, C. R.; Darby, I. G.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Rajabali, M. M.] TRIUMF, Div Sci, Vancouver, BC V6T 2A3, Canada.
[Rajabali, M. M.] Tennessee Technol Univ, Dept Phys, Cookeville, TN 38505 USA.
[Grzywacz, R.; Rykaczewski, K. P.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Liddick, S. N.; Mantica, P. F.] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA.
[Liddick, S. N.; Baumann, T.; Ginter, T. N.; Mantica, P. F.; Weisshaar, D.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
[Mazzocchi, C.; Karny, M.; Miernik, K.; Pfuetzner, M.] Univ Warsaw, Fac Phys, PL-00681 Warsaw, Poland.
[Batchelder, J. C.] Oak Ridge Associated Univ, UNIRIB, Oak Ridge, TN 37831 USA.
[Darby, I. G.] Univ Liverpool, Dept Phys, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England.
[Ilyushkin, S. V.; Winger, J. A.] Mississippi State Univ, Dept Phys & Astron, Mississippi State, MS 39762 USA.
[Krolas, W.] Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland.
[Krolas, W.] Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA.
RP Rajabali, MM (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
EM mrajabali@tntech.edu
FU US DOE [DE-AC05-00OR22725, DE-FG02-96ER40983, DE-FG02-96ER41006]; NNSA
through DOE [DE-FC03-03NA00143]; Polish Ministry of Science [N N202
103333]; Natural Sciences and Engineering Research Council of Canada;
NSF [PHY06-06007]
FX This work was supported under US DOE grants DE-AC05-00OR22725,
DE-FG02-96ER40983, DE-FG02-96ER41006 and in part by the NNSA through DOE
Cooperative Agreement DE-FC03-03NA00143. W Krolas was also supported by
the Polish Ministry of Science contract No. N N202 103333. MM Rajabali
was partially supported by the Natural Sciences and Engineering Research
Council of Canada. NSCL operation is supported in part by NSF grant
PHY06-06007.
NR 14
TC 4
Z9 4
U1 0
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0954-3899
EI 1361-6471
J9 J PHYS G NUCL PARTIC
JI J. Phys. G-Nucl. Part. Phys.
PD NOV
PY 2014
VL 41
IS 11
AR 115104
DI 10.1088/0954-3899/41/11/115104
PG 9
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA AS2DT
UT WOS:000344090500017
ER
PT J
AU Young, AR
Clayton, S
Filippone, BW
Geltenbort, P
Ito, TM
Liu, CY
Makela, M
Morris, CL
Plaster, B
Saunders, A
Seestrom, SJ
Vogelaar, RB
AF Young, A. R.
Clayton, S.
Filippone, B. W.
Geltenbort, P.
Ito, T. M.
Liu, C-Y
Makela, M.
Morris, C. L.
Plaster, B.
Saunders, A.
Seestrom, S. J.
Vogelaar, R. B.
TI Beta decay measurements with ultracold neutrons: a review of recent
measurements and the research program at Los Alamos National Laboratory
SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
LA English
DT Article
DE fundamental symmetries; neutron decay; ultracold neutrons
ID SOLID-DEUTERIUM SOURCE; BIG-BANG NUCLEOSYNTHESIS; INELASTICALLY
SCATTERED NEUTRONS; MONTE-CARLO-SIMULATION; COLD NEUTRONS; POLARIZED
NEUTRONS; STANDARD-MODEL; RADIATIVE-CORRECTIONS; SUPERFLUID HE-4;
SEMILEPTONIC DECAYS
AB We present a review of the motivation and results of recent experiments which utilize ultracold neutrons for measurements of neutron beta decay. Because these experiments hinge critically on the available ultracold neutron source technology, we also review the status of ultracold neutron source development, emphasizing the Los Alamos ultracold neutron facility and the ongoing beta decay research program sited there.
C1 [Young, A. R.] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA.
[Young, A. R.] Triangle Univ Nucl Lab, Durham, NC 27708 USA.
[Clayton, S.; Ito, T. M.; Makela, M.; Morris, C. L.; Saunders, A.; Seestrom, S. J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Filippone, B. W.] CALTECH, Kellogg Radiat Lab, Pasadena, CA 91125 USA.
[Geltenbort, P.] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France.
[Liu, C-Y] Indiana Univ, Dept Phys, Bloomington, IN 47408 USA.
[Plaster, B.] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
[Vogelaar, R. B.] Virginia Polytech & State Univ, Dept Phys, Blacksburg, VA 24061 USA.
RP Young, AR (reprint author), N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA.
OI Makela, Mark/0000-0003-0592-3683; Morris,
Christopher/0000-0003-2141-0255; Ito, Takeyasu/0000-0003-3494-6796;
Clayton, Steven/0000-0002-1401-2761
FU LANL LDRD program, LANL DOE [2015LANL-LE9BU]; Indiana University NSF
[PHY-0969490/PHY-1068712]; NCSU NSF [1005233]; VT NSF grant [1005233];
Caltech NSF [1205977]; UK DOE [DE-FG02-08ER41557]; DOE
[DE-FG02-97ER41042]
FX This work was supported by the LANL LDRD program, LANL DOE grant
2015LANL-LE9BU, the Indiana University NSF grants
PHY-0969490/PHY-1068712, NCSU NSF grant 1005233/DOE grant
DE-FG02-97ER41042, VT NSF grant 1005233, Caltech NSF grant 1205977, and
UK DOE grant DE-FG02-08ER41557. The authors wish to gratefully
acknowledge the encouragement of B Holstein to write this article and
also the assistance of A Coc in preparing section 2.2, and also
acknowledge helpful discussion with V Cirigliano, A Garcia, G Greene, R
Golub, V Gudkov, R Gupta, W Marciano, V Nesvizhevsky, W M Snow, E
Korobkina, A Steyerl, F Wauters and O Zimmer.
NR 202
TC 10
Z9 10
U1 5
U2 17
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0954-3899
EI 1361-6471
J9 J PHYS G NUCL PARTIC
JI J. Phys. G-Nucl. Part. Phys.
PD NOV
PY 2014
VL 41
IS 11
AR 114007
DI 10.1088/0954-3899/41/11/114007
PG 72
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA AS2DT
UT WOS:000344090500009
ER
PT J
AU Iverson, BD
Bauer, SJ
Flueckiger, SM
AF Iverson, Brian D.
Bauer, Stephen J.
Flueckiger, Scott M.
TI Thermocline Bed Properties for Deformation Analysis
SO JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
LA English
DT Article
DE thermocline; thermal energy storage; concentrating solar power; solar
energy
ID MOLTEN-SALT THERMOCLINE; THERMAL-ENERGY STORAGE; GRANULAR-MATERIALS;
DILATANCY; SYSTEM
AB Thermocline tanks have been considered as an alternative to traditional two-tank molten salt thermal storage in concentrating solar power systems due to their potential for cost reduction. One concern for thermocline usage is thermal ratcheting caused by the internal rock bed deformation during cyclic operation and significant temperature fluctuations. Thermal ratcheting studies have been performed in the literature to identify the possibility of tank rupture. However, these studies numerically modeled the ratcheting behavior utilizing bed properties that have never been measured for the materials used in thermocline storage systems. This work presents triaxial test data quartzite and silica thermocline filler materials to better inform future investigations of thermal ratcheting. Molten salt is replaced with water as the interstitial fluid due to similarity in dimensionless numbers and to accommodate room temperature measurement. Material property data for cohesion, dilatancy angle, internal angle of friction, Young's modulus, Poisson's ratio, and bulk modulus are presented for 0.138-0.414MPa confining pressure. The material properties are then compared to those assumed in the literature to comment on the potential impact of this property data relative to thermal ratcheting.
C1 [Iverson, Brian D.] Brigham Young Univ, Dept Mech Engn, Provo, UT 84602 USA.
[Iverson, Brian D.; Bauer, Stephen J.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Flueckiger, Scott M.] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA.
RP Iverson, BD (reprint author), Brigham Young Univ, Dept Mech Engn, Provo, UT 84602 USA.
EM bdiverson@byu.edu
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX This manuscript has been authored by Sandia National Laboratories, a
multiprogram laboratory managed and operated by Sandia Corporation, a
wholly owned subsidiary of Lockheed Martin Corporation, for the U.S.
Department of Energy's National Nuclear Security Administration under
Contract No. DE-AC04-94AL85000.
NR 25
TC 0
Z9 0
U1 2
U2 3
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0199-6231
EI 1528-8986
J9 J SOL ENERG-T ASME
JI J. Sol. Energy Eng. Trans.-ASME
PD NOV
PY 2014
VL 136
IS 4
AR 041002
DI 10.1115/1.4027287
PG 9
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA AS6AE
UT WOS:000344346600002
ER
PT J
AU Ning, SA
Damiani, R
Moriarty, PJ
AF Ning, S. Andrew
Damiani, Rick
Moriarty, Patrick J.
TI Objectives and Constraints for Wind Turbine Optimization
SO JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
LA English
DT Article
ID DESIGN
AB Efficient extraction of wind energy is a complex, multidisciplinary process. This paper examines common objectives used in wind turbine optimization problems. The focus is not on the specific optimized designs, but rather on understanding when certain objectives and constraints are necessary, and what their limitations are. Maximizing annual energy production, or even using sequential aero/structural optimization, is shown to be significantly suboptimal compared to using integrated aero/structural metrics. Minimizing the ratio of turbine mass to annual energy production can be effective for fixed rotor diameter designs, as long as the tower mass is estimated carefully. For variable-diameter designs, the predicted optimal diameter may be misleading. This is because the mass of the tower is a large fraction of the total turbine mass, but the cost of the tower is a much smaller fraction of overall turbine costs. Minimizing the cost of energy is a much better metric, though high fidelity in the cost modeling is as important as high fidelity in the physics modeling. Furthermore, deterministic cost of energy minimization can be inadequate, given the stochastic nature of the wind and various uncertainties associated with physical processes and model choices. Optimization in the presence of uncertainty is necessary to create robust turbine designs.
C1 [Ning, S. Andrew; Damiani, Rick; Moriarty, Patrick J.] Natl Wind Technol Ctr, Golden, CO 80401 USA.
RP Ning, SA (reprint author), Natl Wind Technol Ctr, 15013 Denver West Pkwy, Golden, CO 80401 USA.
EM andrew.ning@nrel.gov
OI Ning, Andrew/0000-0003-2190-823X
FU U.S. Department of Energy under National Renewable Energy Laboratory
[DE-AC36-08GO28308]; DOE Office of Energy Efficiency and Renewable
Energy, Wind, and Water Power Technologies Office
FX The authors gratefully acknowledge George Scott of NREL for providing a
Python version of NREL's cost and scaling model and Katherine Dykes of
NREL for providing the blade cost scaling relationship and suggesting
the inclusion of drivetrain efficiency losses. This work was supported
by the U.S. Department of Energy under Contract No. DE-AC36-08GO28308
with the National Renewable Energy Laboratory. Funding for the work was
provided by the DOE Office of Energy Efficiency and Renewable Energy,
Wind, and Water Power Technologies Office.
NR 32
TC 2
Z9 2
U1 1
U2 11
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0199-6231
EI 1528-8986
J9 J SOL ENERG-T ASME
JI J. Sol. Energy Eng. Trans.-ASME
PD NOV
PY 2014
VL 136
IS 4
AR 041010
DI 10.1115/1.4027693
PG 12
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA AS6AE
UT WOS:000344346600010
ER
PT J
AU De Carlo, F
Gursoy, D
Marone, F
Rivers, M
Parkinson, DY
Khan, F
Schwarz, N
Vine, DJ
Vogt, S
Gleber, SC
Narayanan, S
Newville, M
Lanzirotti, T
Sun, Y
Hong, YP
Jacobsen, C
AF De Carlo, Francesco
Guersoy, Doga
Marone, Federica
Rivers, Mark
Parkinson, Dilworth Y.
Khan, Faisal
Schwarz, Nicholas
Vine, David J.
Vogt, Stefan
Gleber, Sophie-Charlotte
Narayanan, Suresh
Newville, Matt
Lanzirotti, Tony
Sun, Yue
Hong, Young Pyo
Jacobsen, Chris
TI Scientific data exchange: a schema for HDF5-based storage of raw and
analyzed data
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE data storage; provenance; HDF5
ID SOFTWARE TOOLS; MICROSCOPY; FORMAT
AB Data Exchange is a simple data model designed to interface, or 'exchange', data among different instruments, and to enable sharing of data analysis tools. Data Exchange focuses on technique rather than instrument descriptions, and on provenance tracking of analysis steps and results. In this paper the successful application of the Data Exchange model to a variety of X-ray techniques, including tomography, fluorescence spectroscopy, fluorescence tomography and photon correlation spectroscopy, is described.
C1 [De Carlo, Francesco; Guersoy, Doga; Khan, Faisal; Schwarz, Nicholas; Vine, David J.; Vogt, Stefan; Gleber, Sophie-Charlotte; Narayanan, Suresh; Jacobsen, Chris] Argonne Natl Lab, Argonne, IL 60439 USA.
[Marone, Federica] Paul Scherrer Inst, Villigen, Switzerland.
[Rivers, Mark; Newville, Matt; Lanzirotti, Tony] Univ Chicago, Ctr Adv Radiat Sources, Argonne Natl Lab, Argonne, IL 60439 USA.
[Parkinson, Dilworth Y.] Adv Light Source, Berkeley, CA 94720 USA.
[Sun, Yue; Hong, Young Pyo; Jacobsen, Chris] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA.
[Jacobsen, Chris] Northwestern Univ, Chem Life Proc Inst, Evanston, IL 60208 USA.
RP De Carlo, F (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM decarlo@aps.anl.gov
RI Marone, Federica/J-4420-2013; Parkinson, Dilworth/A-2974-2015; Jacobsen,
Chris/E-2827-2015
OI Parkinson, Dilworth/0000-0002-1817-0716; Jacobsen,
Chris/0000-0001-8562-0353
FU NIGMS NIH HHS [R01 GM104530]
NR 21
TC 14
Z9 14
U1 5
U2 22
PU INT UNION CRYSTALLOGRAPHY
PI CHESTER
PA 2 ABBEY SQ, CHESTER, CH1 2HU, ENGLAND
SN 1600-5775
J9 J SYNCHROTRON RADIAT
JI J. Synchrot. Radiat.
PD NOV
PY 2014
VL 21
BP 1224
EP 1230
DI 10.1107/S160057751401604X
PN 6
PG 7
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA AS6JR
UT WOS:000344370400002
PM 25343788
ER
PT J
AU Soares, AS
Mullen, JD
Parekh, RM
McCarthy, GS
Roessler, CG
Jackimowicz, R
Skinner, JM
Orville, AM
Allaire, M
Sweet, RM
AF Soares, Alexei S.
Mullen, Jeffrey D.
Parekh, Ruchi M.
McCarthy, Grace S.
Roessler, Christian G.
Jackimowicz, Rick
Skinner, John M.
Orville, Allen M.
Allaire, Marc
Sweet, Robert M.
TI Solvent minimization induces preferential orientation and crystal
clustering in serial micro-crystallography on micro-meshes, in situ
plates and on a movable crystal conveyor belt
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE in situ X-ray data collection; crystallography; acoustic droplet
ejection; serial crystallography
ID MACROMOLECULAR CRYSTALLOGRAPHY; PROTEIN CRYSTALS; RADIATION-DAMAGE;
DIFFRACTION; REFINEMENT; BEAMLINES; ELECTRON
AB X-ray diffraction data were obtained at the National Synchrotron Light Source from insulin and lysozyme crystals that were densely deposited on three types of surfaces suitable for serial micro-crystallography: MiTeGen MicroMeshes (TM), Greiner Bio-One Ltd in situ micro-plates, and a moving kapton crystal conveyor belt that is used to deliver crystals directly into the X-ray beam. 6 degrees wedges of data were taken from similar to 100 crystals mounted on each material, and these individual data sets were merged to form nine complete data sets (six from insulin crystals and three from lysozyme crystals). Insulin crystals have a parallelepiped habit with an extended flat face that preferentially aligned with the mounting surfaces, impacting the data collection strategy and the design of the serial crystallography apparatus. Lysozyme crystals had a cuboidal habit and showed no preferential orientation. Preferential orientation occluded regions of reciprocal space when the X-ray beam was incident normal to the data-collection medium surface, requiring a second pass of data collection with the apparatus inclined away from the orthogonal. In addition, crystals measuring less than 20 mu m were observed to clump together into clusters of crystals. Clustering required that the X-ray beam be adjusted to match the crystal size to prevent overlapping diffraction patterns. No additional problems were encountered with the serial crystallography strategy of combining small randomly oriented wedges of data from a large number of specimens. High-quality data able to support a realistic molecular replacement solution were readily obtained from both crystal types using all three serial crystallography strategies.
C1 [Soares, Alexei S.; McCarthy, Grace S.; Roessler, Christian G.; Jackimowicz, Rick; Skinner, John M.; Orville, Allen M.; Allaire, Marc; Sweet, Robert M.] Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA.
[Mullen, Jeffrey D.; Parekh, Ruchi M.] Brookhaven Natl Lab, Off Educ Programs, Upton, NY 11973 USA.
[Mullen, Jeffrey D.] Univ Oregon, Dept Phys, Eugene, OR 97403 USA.
[Parekh, Ruchi M.] Suffolk Cty Community Coll, Selden, NY 11784 USA.
[Orville, Allen M.; Sweet, Robert M.] Brookhaven Natl Lab, Dept Biosci, Upton, NY 11973 USA.
RP Soares, AS (reprint author), Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA.
EM soares@bnl.gov
FU NCI NIH HHS [Y1-CO-1020]; NCRR NIH HHS [P41 RR012408, P41RR012408];
NIGMS NIH HHS [P41GM103473, P41 GM103473, P41 GM111244, Y1-GM-1104]
NR 30
TC 3
Z9 3
U1 1
U2 10
PU INT UNION CRYSTALLOGRAPHY
PI CHESTER
PA 2 ABBEY SQ, CHESTER, CH1 2HU, ENGLAND
SN 1600-5775
J9 J SYNCHROTRON RADIAT
JI J. Synchrot. Radiat.
PD NOV
PY 2014
VL 21
BP 1231
EP 1239
DI 10.1107/S1600577514017731
PN 6
PG 9
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA AS6JR
UT WOS:000344370400003
PM 25343789
ER
PT J
AU Laanait, N
Zhang, Z
Schleputz, CM
Vila-Comamala, J
Highland, MJ
Fenter, P
AF Laanait, Nouamane
Zhang, Zhan
Schlepuetz, Christian M.
Vila-Comamala, Joan
Highland, Matthew J.
Fenter, Paul
TI Full-field X-ray reflection microscopy of epitaxial thin-films
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE X-ray surface diffraction; X-ray microscopy; interfaces and thin films;
materials science
ID IMAGE-ANALYSIS; DIFFRACTION; NANOSCALE; SYNCHROTRON; INTERFACES;
DYNAMICS; CONTRAST; SCIENCE; PBTIO3
AB Novel X-ray imaging of structural domains in a ferroelectric epitaxial thin film using diffraction contrast is presented. The full-field hard X-ray microscope uses the surface scattering signal, in a reflectivity or diffraction experiment, to spatially resolve the local structure with 70 nm lateral spatial resolution and sub-nanometer height sensitivity. Sub-second X-ray exposures can be used to acquire a 14 mu m x 14 mu m image with an effective pixel size of 20 nm on the sample. The optical configuration and various engineering considerations that are necessary to achieve optimal imaging resolution and contrast in this type of microscopy are discussed.
C1 [Laanait, Nouamane; Fenter, Paul] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Zhang, Zhan; Schlepuetz, Christian M.; Vila-Comamala, Joan] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
[Highland, Matthew J.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Laanait, N (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
EM nlaanait@anl.gov; fenter@anl.gov
RI Schleputz, Christian/C-4696-2008; Laanait, Nouamane/A-2498-2016; Zhang,
Zhan/A-9830-2008; Vila-Comamala, Joan/E-2106-2017
OI Schleputz, Christian/0000-0002-0485-2708; Laanait,
Nouamane/0000-0001-7100-4250; Zhang, Zhan/0000-0002-7618-6134;
FU Geosciences Research Program of the Office of Basic Energy Sciences, US
Department of Energy (DOE) [DE-AC02-06CH11357]; US DOE, Office of Basic
Energy Sciences, Materials Sciences and Engineering Division; US
Department of Energy Office of Science laboratory [DE-AC02-06CH11357];
US Government
FX We would like to acknowledge Jonathan Tischler (X-ray Science Division,
Argonne National Laboratory) for his invaluable advice and suggestions
during the design of the microscope. We also would like to thank Peter
Eng (CARS, University of Chicago) for installing and configuring the
Kirkpatrick-Baez mirror system. We have benefited from many discussions
with Steve Wang (Washington State University) and Dillon Fong (Argonne
National Laboratory). We thank Zunping Liu (X-ray Science Division,
Argonne National Laboratory) for assistance with the hutch vibration
measurements. This work was supported by the Geosciences Research
Program of the Office of Basic Energy Sciences, US Department of Energy
(DOE), through Contract number DE-AC02-06CH11357 at Argonne National
Laboratory, and through a collaborative 'Partner User Proposal' awarded
for the development of this instrument. The X-ray data were collected at
the X-ray Operations and Research beamline 33-ID-D at the Advanced
Photon Source, Argonne National Laboratory. MJH was supported by US DOE,
Office of Basic Energy Sciences, Materials Sciences and Engineering
Division. The submitted manuscript has been created by UChicago Argonne,
LLC, Operator of Argonne National Laboratory ('Argonne'). Argonne, a US
Department of Energy Office of Science laboratory, is operated under
Contract number DE-AC02-06CH11357. The US Government retains for itself,
and others acting on its behalf, a paid-up non-exclusive irrevocable
worldwide license in said article to reproduce, prepare derivative
works, distribute copies to the public, and perform publicly and display
publicly, by or on behalf of the Government.
NR 49
TC 3
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U1 3
U2 25
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0909-0495
EI 1600-5775
J9 J SYNCHROTRON RADIAT
JI J. Synchrot. Radiat.
PD NOV
PY 2014
VL 21
BP 1252
EP 1261
DI 10.1107/S1600577514016555
PN 6
PG 10
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA AS6JR
UT WOS:000344370400006
PM 25343792
ER
PT J
AU Li, LX
Kwasniewski, P
Orsi, D
Wiegart, L
Cristofolini, L
Caronna, C
Fluerasu, A
AF Li, Luxi
Kwasniewski, Pawel
Orsi, Davide
Wiegart, Lutz
Cristofolini, Luigi
Caronna, Chiara
Fluerasu, Andrei
TI Photon statistics and speckle visibility spectroscopy with partially
coherent X-rays
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE photon statistics; speckle visibility spectroscopy; partially coherent
X-rays
ID FLUCTUATIONS; BEAMS
AB A new approach is proposed for measuring structural dynamics in materials from multi-speckle scattering patterns obtained with partially coherent X-rays. Coherent X-ray scattering is already widely used at high-brightness synchrotron lightsources to measure dynamics using X-ray photon correlation spectroscopy, but in many situations this experimental approach based on recording long series of images (i.e. movies) is either not adequate or not practical. Following the development of visible-light speckle visibility spectroscopy, the dynamic information is obtained instead by analyzing the photon statistics and calculating the speckle contrast in single scattering patterns. This quantity, also referred to as the speckle visibility, is determined by the properties of the partially coherent beam and other experimental parameters, as well as the internal motions in the sample (dynamics). As a case study, Brownian dynamics in a low-density colloidal suspension is measured and an excellent agreement is found between correlation functions measured by X-ray photon correlation spectroscopy and the decay in speckle visibility with integration time obtained from the analysis presented here.
C1 [Li, Luxi; Wiegart, Lutz; Fluerasu, Andrei] Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA.
[Kwasniewski, Pawel] European Synchrotron Radiat Facil, F-38043 Grenoble, France.
[Orsi, Davide; Cristofolini, Luigi] Univ Parma, Dept Phys & Earth Sci, I-43100 Parma, Italy.
[Caronna, Chiara] Stanford Linear Accelerator Lab, Menlo Pk, CA 94025 USA.
RP Li, LX (reprint author), Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA.
EM luxi.li2012@gmail.com
RI Orsi, Davide/P-5748-2016
OI Orsi, Davide/0000-0003-3223-8622
FU NSLS-II with the US Department of Energy [DE-AC02-98CH10886]; Brookhaven
National Laboratory Directed Research Development (LDRD) [11-025]
FX The authors would like to thank the ESRF ID10 beamline for the beam
time, and Y. Chushkin and F. Zontone for the support during the
experiments. The research is financially supported by NSLS-II under
contract No. DE-AC02-98CH10886 with the US Department of Energy, and
Brookhaven National Laboratory Directed Research Development (LDRD) No.
11-025.
NR 20
TC 2
Z9 2
U1 3
U2 15
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0909-0495
EI 1600-5775
J9 J SYNCHROTRON RADIAT
JI J. Synchrot. Radiat.
PD NOV
PY 2014
VL 21
BP 1288
EP 1295
DI 10.1107/S1600577514015847
PN 6
PG 8
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA AS6JR
UT WOS:000344370400011
PM 25343797
ER
PT J
AU Xu, WH
Lauer, K
Chu, Y
Nazaretski, E
AF Xu, Weihe
Lauer, Kenneth
Chu, Yong
Nazaretski, Evgeny
TI A high-precision instrument for mapping of rotational errors in rotary
stages
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE high-precision instrument; rotational errors; rotary stages
ID RAY; RESOLUTION
AB A rotational stage is a key component of every X-ray instrument capable of providing tomographic or diffraction measurements. To perform accurate three-dimensional reconstructions, runout errors due to imperfect rotation (e.g. circle of confusion) must be quantified and corrected. A dedicated instrument capable of full characterization and circle of confusion mapping in rotary stages down to the sub-10 nm level has been developed. A high-stability design, with an array of five capacitive sensors, allows simultaneous measurements of wobble, radial and axial displacements. The developed instrument has been used for characterization of two mechanical stages which are part of an X-ray microscope.
C1 [Xu, Weihe; Lauer, Kenneth; Chu, Yong; Nazaretski, Evgeny] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Nazaretski, E (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM enazaretski@bnl.gov
FU US Department of Energy [DE-AC02-98CH10886]
FX We acknowledge B. Mullany (BNL) for help with three-dimensional modeling
of the microscope and D. Kuhne (BNL) for machining and assembling of
mechanical parts. Work at BNL was supported by the US Department of
Energy under contract No. DE-AC02-98CH10886.
NR 13
TC 4
Z9 4
U1 0
U2 1
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0909-0495
EI 1600-5775
J9 J SYNCHROTRON RADIAT
JI J. Synchrot. Radiat.
PD NOV
PY 2014
VL 21
BP 1367
EP 1369
DI 10.1107/S160057751401618X
PN 6
PG 3
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA AS6JR
UT WOS:000344370400021
PM 25343807
ER
PT J
AU Le Gros, MA
McDermott, G
Cinquin, BP
Smith, EA
Do, M
Chao, WLL
Naulleau, PP
Larabell, CA
AF Le Gros, Mark A.
McDermott, Gerry
Cinquin, Bertrand P.
Smith, Elizabeth A.
Do, Myan
Chao, Weilun L.
Naulleau, Patrick P.
Larabell, Carolyn A.
TI Biological soft X-ray tomography on beamline 2.1 at the Advanced Light
Source
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE cell biology; cellular imaging; cryo-preservation; cryogenic
fluorescence tomography; cryostage; three-dimensional reconstruction
ID MICROSCOPY; RESOLUTION; FLUORESCENCE; SPECIMENS; IMAGES; CELLS
AB Beamline 2.1 (XM-2) is a transmission soft X-ray microscope in sector 2 of the Advanced Light Source at Lawrence Berkeley National Laboratory. XM-2 was designed, built and is now operated by the National Center for X-ray Tomography as a National Institutes of Health Biomedical Technology Research Resource. XM-2 is equipped with a cryogenic rotation stage to enable tomographic data collection from cryo-preserved cells, including large mammalian cells. During data collection the specimen is illuminated with 'water window' X-rays (284-543 eV). Illuminating photons are attenuated an order of magnitude more strongly by biomolecules than by water. Consequently, differences in molecular composition generate quantitative contrast in images of the specimen. Soft X-ray tomography is an information-rich three-dimensional imaging method that can be applied either as a standalone technique or as a component modality in correlative imaging studies.
C1 [Le Gros, Mark A.; McDermott, Gerry; Cinquin, Bertrand P.; Smith, Elizabeth A.; Do, Myan; Larabell, Carolyn A.] Univ Calif San Francisco, Sch Med, Dept Anat, San Francisco, CA 94143 USA.
[Le Gros, Mark A.; McDermott, Gerry; Cinquin, Bertrand P.; Smith, Elizabeth A.; Do, Myan; Larabell, Carolyn A.] Natl Ctr Xray Tomog, Adv Light Source, Berkeley, CA 94720 USA.
[Le Gros, Mark A.; Larabell, Carolyn A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Chao, Weilun L.; Naulleau, Patrick P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
RP Le Gros, MA (reprint author), Univ Calif San Francisco, Sch Med, Dept Anat, San Francisco, CA 94143 USA.
EM mark.legros@ucsf.edu; carolyn.larabell@ucsf.edu
FU US Department of Energy, Office of Basic Energy Science
[DE-AC02-05CH11231]; US Department of Energy, Office of Biological and
Environmental Research [DE-AC02-05CH11231]; National Center for Research
Resources of the National Institutes of Health [P41RR019664]; National
Institute of General Medicine of the National Institutes of Health
[P41GM103445]; Gordon and Betty Moore Foundation [3497]
FX We thank Drs Dula Parkinson and Christian Knoechel for their assistance
in the preparation of Fig. 4 and Dr David Kilcoyne for his expert help
on ALS beamline 5.3.2. The Advanced Light Source is supported by the US
Department of Energy, Office of Basic Energy Science
(DE-AC02-05CH11231). The National Center for X-ray Tomography is
supported by: the US Department of Energy, Office of Biological and
Environmental Research (DE-AC02-05CH11231); the National Center for
Research Resources of the National Institutes of Health (P41RR019664);
the National Institute of General Medicine of the National Institutes of
Health (P41GM103445). The Gordon and Betty Moore Foundation (3497)
support our development of 'super resolution' cryo-fluorescence
tomography for correlated imaging studies.
NR 28
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Z9 7
U1 4
U2 23
PU INT UNION CRYSTALLOGRAPHY
PI CHESTER
PA 2 ABBEY SQ, CHESTER, CH1 2HU, ENGLAND
SN 1600-5775
J9 J SYNCHROTRON RADIAT
JI J. Synchrot. Radiat.
PD NOV
PY 2014
VL 21
BP 1370
EP 1377
DI 10.1107/S1600577514015033
PN 6
PG 8
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA AS6JR
UT WOS:000344370400022
PM 25343808
ER
PT J
AU Xue, ZY
Charonko, JJ
Vlachos, PP
AF Xue, Zhenyu
Charonko, John J.
Vlachos, Pavlos P.
TI Particle image velocimetry correlation signal-to-noise ratio metrics and
measurement uncertainty quantification
SO MEASUREMENT SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 4th Conference on Asia Pacific Optical Sensors (APOS)
CY OCT 15-18, 2013
CL Wuhan, PEOPLES R CHINA
SP Wuhan Univ Technol, Univ Elect Sci & Technol China, Hong Kong Polytechn Univ, Harbin Engn Univ, Huazhong Univ Sci & Technol, Nat Sci Fdn China, Chinese Opt Soc
DE particle image velocimetry; PIV; uncertainty; signal-to-noise ratio
ID INTERNATIONAL PIV CHALLENGE; PULSED SYSTEMS; OPTIMIZATION; FLOWS
AB In particle image velocimetry (PIV) the measurement signal is contained in the recorded intensity of the particle image pattern superimposed on a variety of noise sources. The signal-to-noise-ratio (SNR) strength governs the resulting PIV cross correlation and ultimately the accuracy and uncertainty of the resulting PIV measurement. Hence we posit that correlation SNR metrics calculated from the correlation plane can be used to quantify the quality of the correlation and the resulting uncertainty of an individual measurement. In this paper we extend the original work by Charonko and Vlachos and present a framework for evaluating the correlation SNR using a set of different metrics, which in turn are used to develop models for uncertainty estimation. Several corrections have been applied in this work. The SNR metrics and corresponding models presented herein are expanded to be applicable to both standard and filtered correlations by applying a subtraction of the minimum correlation value to remove the effect of the background image noise. In addition, the notion of a 'valid' measurement is redefined with respect to the correlation peak width in order to be consistent with uncertainty quantification principles and distinct from an 'outlier' measurement. Finally the type and significance of the error distribution function is investigated. These advancements lead to more robust and reliable uncertainty estimation models compared with the original work by Charonko and Vlachos. The models are tested against both synthetic benchmark data as well as experimental measurements. In this work, U-68.5 uncertainties are estimated at the 68.5% confidence level while U-95 uncertainties are estimated at 95% confidence level. For all cases the resulting calculated coverage factors approximate the expected theoretical confidence intervals, thus demonstrating the applicability of these new models for estimation of uncertainty for individual PIV measurements.
C1 [Xue, Zhenyu] Virginia Tech, Dept Mech Engn, Blacksburg, VA 24061 USA.
[Charonko, John J.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Vlachos, Pavlos P.] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA.
RP Xue, ZY (reprint author), Virginia Tech, Dept Mech Engn, Blacksburg, VA 24061 USA.
EM pvlachos@purdue.edu
RI Charonko, John/D-6701-2013
OI Charonko, John/0000-0002-0396-9672
FU NSF-IDBR award [1152304]; NSF/FDA SIR award [1239265]
FX The authors wish to acknowledge the support of NSF-IDBR award 1152304
and the NSF/FDA SIR award 1239265. Also PPV would like to thank Barton L
Smith, Bernd Wieneke, Andrea Sciacchitano and Doug Neal for the numerous
discussions over the past year on the various issues related to the PIV
uncertainty quantification.
NR 32
TC 10
Z9 10
U1 1
U2 9
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0957-0233
EI 1361-6501
J9 MEAS SCI TECHNOL
JI Meas. Sci. Technol.
PD NOV
PY 2014
VL 25
IS 11
AR 115301
DI 10.1088/0957-0233/25/11/115301
PG 15
WC Engineering, Multidisciplinary; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA AS0AM
UT WOS:000343940800021
ER
PT J
AU Rauscher, SA
Ringler, TD
AF Rauscher, Sara A.
Ringler, Todd D.
TI Impact of Variable-Resolution Meshes on Midlatitude Baroclinic Eddies
Using CAM-MPAS-A
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID MULTIRESOLUTION MODELING APPROACH; HORIZONTAL RESOLUTION; STORM-TRACKS;
AQUAPLANET SIMULATIONS; CLIMATE SIMULATION; DYNAMICAL CORE; SENSITIVITY;
ATMOSPHERE; GCM; PRECIPITATION
AB The effects of a variable-resolution mesh on simulated midlatitude baroclinic eddies in idealized settings are examined. Both aquaplanet and Held-Suarez experiments are performed using the Model for Prediction Across Scales-Atmosphere (MPAS-A) hydrostatic dynamical core implemented within the National Science Foundation Department of Energy (NSF-DOE) Community Atmosphere Model (CAM-MPAS-A). In the real world, midlatitude eddy activity is organized by orography, land sea contrasts, and sea surface temperature anomalies. In these zonally symmetric idealized settings, transients should have an equal probability of occurring at any longitude. However, the use of a variable-resolution mesh with a circular high-resolution region centered at 30 degrees N results in a maximum in eddy kinetic energy on the eastern side and downstream of this high-resolution region in both aquaplanet and Held Suarez CAM-MPAS-A simulations. The presence of a geographically confined maximum in both simulations suggests this response is mainly attributable to CAM-MPAS-A's ability to resolve eddies via the model dynamics as resolution increases. However, in the aquaplanet simulation, a secondary maximum in eddy kinetic energy is present, which is probably linked to the resolution dependencies of the CAM physics. These mesh responses must be considered when interpreting real-world variable-resolution CAM-MPAS-A simulations, particularly in climate change experiments.
C1 [Rauscher, Sara A.; Ringler, Todd D.] Los Alamos Natl Lab, Fluid Dynam & Solid Mech Grp, Div Theoret, Los Alamos, NM USA.
RP Rauscher, SA (reprint author), Univ Delaware, Dept Geog, 219 Pearson Hall, Newark, DE 19716 USA.
EM rauscher@udel.edu
FU DOE [07SCPF152]
FX We thank three anonymous reviewers for their comments that greatly
helped to improve the quality of this manuscript. This work is supported
by the DOE 07SCPF152 for the "Development of Frameworks for Robust
Regional Climate Modeling." The efforts of Art Mirin, Dan Bergman, and
Jeff Painter in helping to couple MPAS-A with CAM are very much
appreciated.
NR 49
TC 4
Z9 4
U1 0
U2 2
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0027-0644
EI 1520-0493
J9 MON WEATHER REV
JI Mon. Weather Rev.
PD NOV
PY 2014
VL 142
IS 11
BP 4256
EP 4268
DI 10.1175/MWR-D-13-00366.1
PG 13
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA AS4BW
UT WOS:000344219400017
ER
PT J
AU Duarte, M
Almgren, AS
Balakrishnan, K
Bell, JB
Romps, DM
AF Duarte, Max
Almgren, Ann S.
Balakrishnan, Kaushik
Bell, John B.
Romps, David M.
TI A Numerical Study of Methods for Moist Atmospheric Flows: Compressible
Equations
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID THERMODYNAMIC FOUNDATION; CONSERVATIVE SCHEME; CUMULUS CONVECTION;
MODEL; SIMULATION; MICROPHYSICS; EXPLICIT; ENTROPY
AB Two common numerical techniques for integrating reversible moist processes in atmospheric flows are investigated in the context of solving the fully compressible Euler equations. The first is a one-step, coupled technique based on using appropriate invariant variables such that terms resulting from phase change are eliminated in the governing equations. In the second approach, which is a two-step scheme, separate transport equations for liquid water and water vapor are used, and no conversion between water vapor and liquid water is allowed in the first step, while in the second step a saturation adjustment procedure is performed that correctly allocates the water into its two phases based on the Clausius-Clapeyron formula. The numerical techniques described are first validated by comparing to a well-established benchmark problem. Particular attention is then paid to the effect of changing the time scale at which the moist variables are adjusted to the saturation requirements in two different variations of the two-step scheme. This study is motivated by the fact that when acoustic modes are integrated separately in time (neglecting phase change related phenomena), or when soundproof equations are integrated, the time scale for imposing saturation adjustment is typically much larger than the numerical one related to the acoustics.
C1 [Duarte, Max; Almgren, Ann S.; Balakrishnan, Kaushik; Bell, John B.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Computat Sci & Engn, Berkeley, CA 94720 USA.
[Romps, David M.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
[Romps, David M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Duarte, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Computat Sci & Engn, 1 Cyclotron Rd,MS 50A-1148, Berkeley, CA 94720 USA.
EM mdgonzalez@lbl.gov
RI Romps, David/F-8285-2011
FU Applied Mathematics Program of the DOE Office of Advance Scientific
Computing Research under U.S. Department of Energy [DE-AC02-05CH11231];
Scientific Discovery through Advanced Computing (SciDAC) program - U.S.
Department of Energy Office of Advanced Scientific Computing Research;
Office of Biological and Environmental Research
FX The work in the Center for Computational Sciences and Engineering at
LBNL was supported by the Applied Mathematics Program of the DOE Office
of Advance Scientific Computing Research under U.S. Department of Energy
under Contract DE-AC02-05CH11231. DR was supported by the Scientific
Discovery through Advanced Computing (SciDAC) program funded by the U.S.
Department of Energy Office of Advanced Scientific Computing Research
and Office of Biological and Environmental Research.
NR 23
TC 5
Z9 5
U1 0
U2 7
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0027-0644
EI 1520-0493
J9 MON WEATHER REV
JI Mon. Weather Rev.
PD NOV
PY 2014
VL 142
IS 11
BP 4269
EP 4283
DI 10.1175/MWR-D-13-00368.1
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA AS4BW
UT WOS:000344219400018
ER
PT J
AU Deyle, DR
Hansen, RS
Cornea, AM
Li, LB
Burt, AA
Alexander, IE
Sandstrom, RS
Stamatoyannopoulos, JA
Wei, CL
Russell, DW
AF Deyle, David R.
Hansen, R. Scott
Cornea, Anda M.
Li, Li B.
Burt, Amber A.
Alexander, Ian E.
Sandstrom, Richard S.
Stamatoyannopoulos, John A.
Wei, Chia-Lin
Russell, David W.
TI A genome-wide map of adeno-associated virus-mediated human gene
targeting
SO NATURE STRUCTURAL & MOLECULAR BIOLOGY
LA English
DT Article
ID TRANSCRIPTION-ASSOCIATED RECOMBINATION; STALLED REPLICATION FORKS;
DOUBLE-STRAND BREAKS; HOMOLOGOUS RECOMBINATION; HUMAN-CELLS; MINUTE
VIRUS; CONVERGENT TRANSCRIPTION; DNA; VECTORS; REPEATS
AB To determine which genomic features promote homologous recombination, we created a genome-wide map of gene targeting sites. We used an adeno-associated virus vector to target identical loci introduced as transcriptionally active retroviral vectors. A comparison of 2,000 targeted and untargeted sites showed that targeting occurred throughout the human genome and was not influenced by the presence of nearby CpG islands, sequence repeats or DNase l hypersensitive sites. Targeted sites were preferentially located within transcription units, especially when the target loci were transcribed in the opposite orientation to their surrounding chromosomal genes. We determined the impact of DNA replication by mapping replication forks, which revealed a preference for recombination at target loci transcribed toward an incoming fork. Our results constitute the first genome-wide screen of gene targeting in mammalian cells and demonstrate a strong recombinogenic effect of colliding polymerases.
C1 [Deyle, David R.; Hansen, R. Scott; Li, Li B.; Burt, Amber A.; Russell, David W.] Univ Washington, Dept Med, Seattle, WA 98195 USA.
[Cornea, Anda M.] Univ Washington, Dept Mol & Cell Biol, Seattle, WA 98195 USA.
[Alexander, Ian E.] Childrens Med Res Inst, Gene Therapy Res Unit, Westmead, NSW, Australia.
[Sandstrom, Richard S.; Stamatoyannopoulos, John A.] Univ Washington, Dept Genome Sci, Seattle, WA 98195 USA.
[Wei, Chia-Lin] Joint Genome Inst, Genom Technol Dept, Walnut Creek, CA USA.
[Russell, David W.] Univ Washington, Dept Biochem, Seattle, WA 98195 USA.
RP Russell, DW (reprint author), Univ Washington, Dept Med, Seattle, WA 98195 USA.
EM drussell@u.washington.edu
RI LI, LI/G-6197-2015
FU US National Institutes of Health [R01DK55759, P01HL53750, R01AR48328,
K08AR053917, U54HG007010]; Australian Department of Innovation,
Industry, Science and Research [CG130052]; Genome Institute of Singapore
(GIS) - Agency for Science, Technology and Research (A*STAR), Singapore
FX We thank). Delrow, A. Dawson and R. Basom for microarray analysis, P.
Hendrie for MVM data, T. Canfield for Repli-Seq processing and R. Hirata
and R. Stolitenko for technical assistance. This work was supported by
grants from the US National Institutes of Health (R01DK55759, P01HL53750
and R01AR48328) to D.W.R., (K08AR053917) to D.R.D. and (U54HG007010 and
P01HL53750) to R.S.H. and J.A.S. This work was also supported by grants
from the Australian Department of Innovation, Industry, Science and
Research (CG130052) to D.W.R., I.E.A. and C.-L.W., and the Genome
Institute of Singapore (GIS) funded by the Agency for Science,
Technology and Research (A*STAR), Singapore, to C.-L.W.
NR 57
TC 2
Z9 2
U1 1
U2 3
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 1545-9993
EI 1545-9985
J9 NAT STRUCT MOL BIOL
JI Nat. Struct. Mol. Biol.
PD NOV
PY 2014
VL 21
IS 11
BP 969
EP 975
DI 10.1038/nsmb.2895
PG 7
WC Biochemistry & Molecular Biology; Biophysics; Cell Biology
SC Biochemistry & Molecular Biology; Biophysics; Cell Biology
GA AS8QM
UT WOS:000344513400006
PM 25282150
ER
PT J
AU Briggs, JB
Gulliford, J
AF Briggs, J. Blair
Gulliford, Jim
TI An Overview of the International Reactor Physics Experiment Evaluation
Project
SO NUCLEAR SCIENCE AND ENGINEERING
LA English
DT Article
ID BENCHMARK EVALUATION PROJECT
AB Interest in high-quality integral benchmark data is increasing as efforts to quantify and reduce cakulational uncertainties associated with advanced modeling and simulation accelerate to meet the demands of next-generation reactor and advanced fuel cycle concepts. Two Organisation for Economic Co-operation and Development (OECD)/Nuclear Energy Agency (NEA) activities, the International Criticality Safety Benchmark Evaluation Project (ICSBEP), initiated in 1992, and the International Reactor Physics Experiment Evaluation Project (IRPhEP), initiated in 2003, have been identifying existing integral experiment data, evaluating those data, and providing integral benchmark specifications for methods and data validation for nearly two decades. Data provided by those two projects will be of use to the international reactor physics, criticality safety, and nuclear data communities for future decades. An overview of the IRPhEP and a brief update of the ICSBEP are provided in this paper.
C1 [Briggs, J. Blair] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Gulliford, Jim] Org Econ Cooperat & Dev, Nucl Energy Agcy, F-92130 Paris, France.
RP Briggs, JB (reprint author), Idaho Natl Lab, POB 1625,MS 3860, Idaho Falls, ID 83415 USA.
EM j.briggs@inl.gov
NR 9
TC 2
Z9 2
U1 0
U2 0
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5639
EI 1943-748X
J9 NUCL SCI ENG
JI Nucl. Sci. Eng.
PD NOV
PY 2014
VL 178
IS 3
BP 269
EP 279
PG 11
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS0FX
UT WOS:000343954600002
ER
PT J
AU Palmiotti, G
Briggs, JB
Kugo, T
Trumble, E
Kahler, AC
Lancaster, D
AF Palmiotti, Giuseppe
Briggs, J. Blair
Kugo, Teruhiko
Trumble, Edward (Fitz)
Kahler, Albert C. (Skip)
Lancaster, Dale
TI Applications of Integral Benchmark Data
SO NUCLEAR SCIENCE AND ENGINEERING
LA English
DT Article
ID CORE PERFORMANCE PARAMETERS; BIAS FACTOR METHODS; PREDICTION ACCURACY;
NEUTRONIC CHARACTERISTICS; REACTOR CORE; ENDF/B-VII.1; IMPROVEMENT;
ADJUSTMENT; JENDL-4.0; ERROR
AB The International Reactor Physics Experiment Evaluation Project (IRPhEP) and the International Criticality Safety Benchmark Evaluation Project (ICSBEP) provide evaluated integral benchmark data that may be used for validation of reactor physics/nuclear criticality safety analytical methods and data, nuclear data testing, advanced modeling and simulation, and safety analysis licensing activities. The handbooks produced by these programs are used in over 30 countries. Five example applications are presented in this paper: (a) use of IRPhEP data in uncertainty analyses and cross-section adjustment, (b) uncertainty evaluation methods for reactor core design at Japan Atomic Energy Agency using reactor physics experimental data, (c) application of benchmarking data to a broad range of criticality safety problems, (d) cross-section data testing with ICSBEP benchmarks, and (e) use of the International Handbook of Evaluated Reactor Physics Benchmark Experiments to support the power industry.
C1 [Palmiotti, Giuseppe; Briggs, J. Blair] Idaho Natl Lab, Nucl Syst Design & Anal Div, Idaho Falls, ID 83415 USA.
[Kugo, Teruhiko] Japan Atom Energy Agcy, Nucl Sci & Engn Directorate, Tokai, Ibaraki 3191195, Japan.
[Trumble, Edward (Fitz)] URS Profess Solut, Aiken, SC 29803 USA.
[Kahler, Albert C. (Skip)] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Lancaster, Dale] NuclearConsultants Com, State Coll, PA 16801 USA.
RP Palmiotti, G (reprint author), Idaho Natl Lab, Nucl Syst Design & Anal Div, POB 1625,MS 3860, Idaho Falls, ID 83415 USA.
EM giuseppe.palmiotti@inl.gov
NR 33
TC 1
Z9 1
U1 0
U2 1
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5639
EI 1943-748X
J9 NUCL SCI ENG
JI Nucl. Sci. Eng.
PD NOV
PY 2014
VL 178
IS 3
BP 295
EP 310
PG 16
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS0FX
UT WOS:000343954600004
ER
PT J
AU Lell, RM
AF Lell, Richard M.
TI ZPPR-LMFR-EXP-010: Criticality and Sodium Void Worth Measurements in
ZPPR-12
SO NUCLEAR SCIENCE AND ENGINEERING
LA English
DT Article
AB The ZPPR-12 experiments conducted by Argonne National Laboratory were designed to study sodium void worth, cell heterogeneity, and neutron streaming. The small core made it possible to conduct sodium void and neutron streaming experiments over the entire core. The simple, clean, single-zone core had no internal structures such as internal blankets or control rods to affect measurements or complicate interpretation of experimental results. Criticality and selected sodium void worth measurements were evaluated for ZPPR-12, and a detailed uncertainty analysis was performed for the measurements chosen for the benchmark. Highly detailed as-built models were developed for all configurations selected for the benchmark. A simplified RZ model was also created for the criticality benchmark. MCNP5 calculations with ENDF/B-VII.0 data for the benchmark models show generally good agreement between calculated and benchmark values for k(eff) and sodium void worth.
C1 Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
RP Lell, RM (reprint author), Argonne Natl Lab, Nucl Engn Div, 9700 South Cass Ave,Bldg 208, Argonne, IL 60439 USA.
EM rmlell@anl.gov
NR 7
TC 0
Z9 0
U1 1
U2 1
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5639
EI 1943-748X
J9 NUCL SCI ENG
JI Nucl. Sci. Eng.
PD NOV
PY 2014
VL 178
IS 3
BP 326
EP 334
PG 9
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS0FX
UT WOS:000343954600006
ER
PT J
AU Bess, JD
Montierth, LM
Koberl, O
Snoj, L
AF Bess, John D.
Montierth, Leland M.
Koeberl, Oliver
Snoj, Luka
TI Benchmark Evaluation of HTR-PROTEUS Pebble Bed Experimental Program
SO NUCLEAR SCIENCE AND ENGINEERING
LA English
DT Article
ID CORE PHYSICS TESTS; MONTE-CARLO; 1ST CRITICALITY; NUCLEAR-SCIENCE;
REACTOR; TECHNOLOGY; NEUTRON; LIBRARY
AB Benchmark models were developed to evaluate II critical core configurations of the HTR-PROTEUS pebble bed experimental program. Various additional reactor physics measurements were carried out as part of this program; currently, only a total of 37 absorber rod worth measurements have been evaluated as acceptable benchmark experiments for cores 4, 9, and 10. Dominant uncertainties in the experimental k(eff) for all core configurations come from uncertainties in the U-235 enrichment of the fuel, impurities in the moderator pebbles, and the density and impurity content of the radial reflector. Calculations of keff with MCNP5 and ENDF/B-VII.0 neutron nuclear data are greater than the benchmark values but are within 1% and also within the 3 sigma uncertainty, except for core 4, which is the only randomly packed pebble configuration. Repeated calculations of k(eff) with MCNP6.1 and ENDF/B-VII.1 are lower than the benchmark values but are within 1% (similar to 3 sigma), except for cores 5 and 9, which calculate lower than the benchmark eigenvalues by <4 sigma. The primary difference between the two nuclear data libraries is the adjustment of the absorption cross section of graphite. Simulations of the absorber rod worth measurements are within 3 sigma of the benchmark experiment values. The complete benchmark evaluation details are available in the 2014 edition of the International Handbook of Evaluated Reactor Physics Benchmark Experiments.
C1 [Bess, John D.; Montierth, Leland M.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Koeberl, Oliver] Axpo Power AG Kernenergie, CH-5312 Dottingen, Switzerland.
[Snoj, Luka] Jozef Stefan Inst, SI-1000 Ljubljana, Slovenia.
RP Bess, JD (reprint author), Idaho Natl Lab, POB 1625,MS 3855, Idaho Falls, ID 83415 USA.
EM john.bess@inl.gov
OI Bess, John/0000-0002-4936-9103; Snoj, Luka/0000-0003-3097-5928
FU U.S. Department of Energy [DE-AC07-05ID14517]
FX The authors would like to thank B. H. Dolphin, W. K. Terry, and C. A.
Wemple, all formerly from Idaho National Laboratory, for their initial
efforts in compiling data for the benchmark evaluation. The authors
would like to express gratitude for the comprehensive review and support
provided by J. W. Sterbentz, J. B. Briggs, and H. D. Gougar from Idaho
National Laboratory; I. Lengar from Jozef Stefan Institute; and J. Kelly
from University of Florida (formerly from PSI). Appreciation is provided
for D. Hanlon from AMEC and B. Chukbar from Kurchatov Institute for
their additional analyses of the core 4 critical configuration. Further
indebtedness is expressed to all the international participants in the
International Reactor Physics Experiment Evaluation Project for all
their well-spent time and effort. This paper was prepared at Idaho
National Laboratory for the U.S. Department of Energy under contract
DE-AC07-05ID14517.
NR 37
TC 0
Z9 0
U1 0
U2 1
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5639
EI 1943-748X
J9 NUCL SCI ENG
JI Nucl. Sci. Eng.
PD NOV
PY 2014
VL 178
IS 3
BP 387
EP 400
PG 14
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS0FX
UT WOS:000343954600011
ER
PT J
AU Bess, JD
Fujimoto, N
AF Bess, John D.
Fujimoto, Nozomu
TI Benchmark Evaluation of Start-Up and Zero-Power Measurements at the
High-Temperature Engineering Test Reactor
SO NUCLEAR SCIENCE AND ENGINEERING
LA English
DT Article
ID CORE PHYSICS TESTS; NUCLEAR-DATA; HTTR; SCIENCE; CRITICALITY;
TECHNOLOGY; LIBRARY
AB Benchmark models were developed to evaluate six cold-critical and two warm-critical, zero-power measurements of the high-temperature engineering test reactor (HTTR). Additional measurements of the subcritical configuration of the fully loaded core, core excess reactivity, shutdown margins, six isothermal temperature coefficients, and axial reaction-rate distributions were also evaluated as acceptable benchmark experiments. Insufficient information is publicly available to develop finely detailed models of the HTTR as much of the design information is still proprietary. The uncertainties in the benchmark models are judged to be of sufficient magnitude to encompass any biases and bias uncertainties incurred through the simplification process used to develop the benchmark models. However, use of the benchmark critical configurations of the HTTR for nuclear data adjustment is not recommended as the impact of these biases has not been addressed with rigorous detail. The impact of any simplification biases, if any, is not expected to significantly impact evaluation of the other reactor physics measurement calculations. Dominant uncertainties in the experimental k(eff) for all core configurations come from uncertainties in the impurity content of the various graphite blocks that compose the HTTR. Monte Carlo calculations of k(eff) are between 0.9% and 2.7% greater than the benchmark values. Reevaluation of the HTTR models as additional information becomes available could improve the quality of this benchmark and possibly reduce the computational biases. High-quality characterization of graphite impurities would significantly improve the quality of the HTTR benchmark assessment. Simulations of the other reactor physics measurements are in good agreement with the benchmark experiment values. The complete benchmark evaluation details are available in the 2014 edition of the International Handbook of Evaluated Reactor Physics Benchmark Experiments.
C1 [Bess, John D.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Fujimoto, Nozomu] Japan Atom Energy Agcy, Oarai Res & Dev Ctr, Dept HTTR, Oarai, Ibaraki 3111393, Japan.
RP Bess, JD (reprint author), Idaho Natl Lab, POB 1625,MS 3855, Idaho Falls, ID 83415 USA.
EM john.bess@inl.gov
OI Bess, John/0000-0002-4936-9103
FU U.S. Department of Energy [DE-AC07-05ID14517]
FX The authors would like to thank J. W. Sterbentz and B. H. Dolphin from
Idaho National Laboratory and L. Snoj from Jozef Stefan Institute for
their review and support in developing a comprehensive benchmark
evaluation. Extra gratitude is expressed for A. Zukeran, retired from
JAEA, for his collaboration in obtaining and reviewing HTTR data,
including translation from Japanese into English. Further appreciation
is expressed to all the international participants in the International
Reactor Physics Experiment Evaluation Project for all their well-spent
time and effort. This paper was prepared at Idaho National Laboratory
for the U.S. Department of Energy under contract DE-AC07-05ID14517.
NR 26
TC 1
Z9 1
U1 0
U2 1
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5639
EI 1943-748X
J9 NUCL SCI ENG
JI Nucl. Sci. Eng.
PD NOV
PY 2014
VL 178
IS 3
BP 414
EP 427
PG 14
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS0FX
UT WOS:000343954600013
ER
PT J
AU Newhouse, AE
Polin-McGuigan, LD
Baier, KA
Valletta, KER
Rottmann, WH
Tschaplinski, TJ
Maynard, CA
Powell, WA
AF Newhouse, Andrew E.
Polin-McGuigan, Linda D.
Baier, Kathleen A.
Valletta, Kristia E. R.
Rottmann, William H.
Tschaplinski, Timothy J.
Maynard, Charles A.
Powell, William A.
TI Transgenic American chestnuts show enhanced blight resistance and
transmit the trait to T1 progeny
SO PLANT SCIENCE
LA English
DT Article
DE Restoration; Heritage tree; Genetic engineering; Invasive;
Co-transformation; Fungus
ID AGROBACTERIUM-MEDIATED TRANSFORMATION; DENTATA MARSH. BORKH.; OXALATE
OXIDASE; ANTIMICROBIAL PEPTIDES; PARTICLE BOMBARDMENT; SOMATIC EMBRYOS;
SEPTORIA-MUSIVA; EXPRESSION; CASTANEA; GENE
AB American chestnut (Castanea dentata) is a classic example of a native keystone species that was nearly eradicated by an introduced fungal pathogen. This report describes progress made toward producing a fully American chestnut tree with enhanced resistance to the blight fungus (Cryphonectria parasitica). The transgenic American chestnut 'Darling4,' produced through an Agrobacterium co-transformation procedure to express a wheat oxalate oxidase gene driven by the VspB vascular promoter, shows enhanced blight resistance at a level intermediate between susceptible American chestnut and resistant Chinese chestnut (Castanea mollissima). Enhanced resistance was identified first with a leaf-inoculation assay using young chestnuts grown indoors, and confirmed with traditional stem inoculations on 3- and 4-year-old field-grown trees. Pollen from 'Darling4' and other events was used to produce transgenic T1 seedlings, which also expressed the enhanced resistance trait in leaf assays. Outcrossed transgenic seedlings have several advantages over tissue-cultured plantlets, including increased genetic diversity and faster initial growth. This represents a major step toward the restoration of the majestic American chestnut. (C) 2014 Elsevier Ireland Ltd. All rights reserved.
C1 [Newhouse, Andrew E.; Polin-McGuigan, Linda D.; Baier, Kathleen A.; Valletta, Kristia E. R.; Maynard, Charles A.; Powell, William A.] SUNY Coll Environm Sci & Forestry, Syracuse, NY 13210 USA.
[Rottmann, William H.] Arborgen Inc, Ridgeville, SC 29472 USA.
[Tschaplinski, Timothy J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Powell, WA (reprint author), SUNY Coll Environm Sci & Forestry, 1 Forestry Dr, Syracuse, NY 13210 USA.
EM wapowell@esf.edu
OI Tschaplinski, Timothy/0000-0002-9540-6622
FU American Chestnut Foundation - New York Chapter; Forest Health
Initiative; BRAG -Biotechnology Risk Assessment Program from the USDA
National Institute of Food and Agriculture [2008-39211-19564]; ArborGen
Inc.; Unger Vetlesen Foundation; Department of Energy, Office of
Science, Biological and Environmental Research, Plant-microbe Interfaces
Science Focus Area (at Oak Ridge National Laboratory, Oak Ridge, TN,
U.S.A.); US Government [DE-AC05-00OR22725]; SUNY-ESF Physical Plant
FX Funding sources included: The American Chestnut Foundation - New York
Chapter, the Forest Health Initiative, BRAG -Biotechnology Risk
Assessment Program Competitive Grant no. 2008-39211-19564 from the USDA
National Institute of Food and Agriculture, ArborGen Inc., and the Unger
Vetlesen Foundation. This research was supported, in part, by the
Department of Energy, Office of Science, Biological and Environmental
Research, as part of the Plant-microbe Interfaces Science Focus Area
(based at Oak Ridge National Laboratory, Oak Ridge, TN, U.S.A.). This
manuscript has been co-authored by a contractor of the US Government
under contract DE-AC05-00OR22725. None of these funding sources were
involved in study design, data collection, data analysis, interpretation
of results, writing of this report, or the decision to submit this
report for publication.; Help and support were graciously provided by:
Maud Hinchee, Herb & Jane Darling and Richard Wells of TACF-NY, the
SUNY-ESF Physical Plant, Aaron Barrigar, Collin Bartholomew, Clara
Miller, Megan Newhouse, Drew Teller, and Allison Oakes.
NR 44
TC 9
Z9 9
U1 14
U2 59
PU ELSEVIER IRELAND LTD
PI CLARE
PA ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000,
IRELAND
SN 0168-9452
J9 PLANT SCI
JI Plant Sci.
PD NOV
PY 2014
VL 228
SI SI
BP 88
EP 97
DI 10.1016/j.plantsci.2014.04.004
PG 10
WC Biochemistry & Molecular Biology; Plant Sciences
SC Biochemistry & Molecular Biology; Plant Sciences
GA AS7NI
UT WOS:000344442200010
PM 25438789
ER
PT J
AU White, JC
Godsey, ME
Bhatia, SR
AF White, Joseph C.
Godsey, Megan E.
Bhatia, Surita R.
TI Perfluorocarbons enhance oxygen transport in alginate-based hydrogels
SO POLYMERS FOR ADVANCED TECHNOLOGIES
LA English
DT Article; Proceedings Paper
CT 12th Conference on Polymers for Advanced Technologies (PAT)
CY 2013
CL Belin, GERMANY
DE oxygen; hydrogels; perfluorocarbon; biomaterials; tissue engineering
ID CELL ENCAPSULATION; EMULSIONS; DELIVERY; CULTURE; TISSUE;
DIFFERENTIATION; DIFFUSION; MATRICES; CARRIERS
AB A major limitation of current soft biomaterials for tissue engineering and cell encapsulation is inadequate transport of oxygen to cells and tissues. Oxygen transport is a challenge in nearly all aqueous hydrogel biomaterials. Here, we report the effective diffusivity of oxygen in alginate-based hydrogels containing stable perfluorocarbon (PFC) emulsions. Incorporation of 7% perfluorooctyl bromide into the alginate gels was found to increase oxygen permeability by a factor of three. Our work also demonstrates that the increase in oxygen transport is largely due to improved oxygen solubility in PFC-containing gels. Although promising, this improved oxygen transport comes with a trade-off in terms of mechanical robustness. This must be carefully considered in future development of PFC-containing hydrogels for biomedical devices. Copyright (c) 2014 John Wiley & Sons, Ltd.
C1 [White, Joseph C.; Godsey, Megan E.; Bhatia, Surita R.] Univ Massachusetts, Dept Chem Engn, Amherst, MA 01003 USA.
[Bhatia, Surita R.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
[Bhatia, Surita R.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11793 USA.
RP Bhatia, SR (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
EM surita.bhatia@stonybrook.edu
RI Bhatia, Surita/B-4536-2008; White, Joe/I-8148-2015
NR 26
TC 2
Z9 2
U1 7
U2 28
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1042-7147
EI 1099-1581
J9 POLYM ADVAN TECHNOL
JI Polym. Adv. Technol.
PD NOV
PY 2014
VL 25
IS 11
SI SI
BP 1242
EP 1246
DI 10.1002/pat.3296
PG 5
WC Polymer Science
SC Polymer Science
GA AS0UU
UT WOS:000343994800008
ER
PT J
AU Yu, YQ
Cheng, X
AF Yu, Y. Q.
Cheng, X.
TI Experimental study of water film flow on large vertical and inclined
flat plate
SO PROGRESS IN NUCLEAR ENERGY
LA English
DT Article
DE PCCS; Water film; Flat plate; Solitary wave; Inclined plate
ID LIQUID-FILM; FALLING FILMS; WAVES; GAS; LAYER; WALL; THIN
AB Free falling water film flow is widely applied in many industrial fields, including the PCCS (Passive Containment Cooling System) of the Generation III nuclear power plant. This paper describes an experimental study of free falling water film flow on a vertical and an inclined flat plate (2 x 5 m and 0.4 x 5 m). A capacitance probe and high-speed camera were used to capture the characteristics of film flow with different Reynolds (50 similar to 3600). Many statistical variables of the film flow are presented, such as film thickness, wave length, wave frequency, and wave velocity etc. The test data are also compared with Nusselt theory and some empirical correlations from other researches. The effect of Reynolds number and inclination of the plate on film flow are studied.
Three transition points which indicate different flow mechanism changes are found by analyzing different statistical film flow variables. With the increase of Reynolds number, the solitary waves of film flow develop from low speed waves of high frequency and short wave length to high speed waves of low frequency and long wave length. Empirical correlations of (delta) over bar, delta(min), delta(max), delta(sub), delta(p), U-wave of film flow on large flat plate are obtained. It could be applied to the safety analysis program for PCCS. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Yu, Y. Q.; Cheng, X.] Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai 200240, Peoples R China.
[Cheng, X.] Inst Nucl & Energy Technol, Res Ctr Karlsruhe, D-76021 Karlsruhe, Germany.
[Yu, Y. Q.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
RP Yu, YQ (reprint author), Argonne Natl Lab, Nucl Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM yyu@anl.gov
FU China National Key Projects [2010ZX06002-005]; U.S. Department of
Energy, Basic Energy Sciences, Office of Science [DE-AC02-06CH11357]
FX The support from China National Key Projects 2010ZX06002-005 is
gratefully acknowledged. This work is also supported by the U.S.
Department of Energy, Basic Energy Sciences, Office of Science, under
contract # DE-AC02-06CH11357.
NR 30
TC 3
Z9 3
U1 3
U2 17
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0149-1970
J9 PROG NUCL ENERG
JI Prog. Nucl. Energy
PD NOV
PY 2014
VL 77
BP 176
EP 186
DI 10.1016/j.pnucene.2014.07.001
PG 11
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS3WT
UT WOS:000344206700017
ER
PT J
AU McFarlane, H
AF McFarlane, Harold
TI Special Section on Status of Generation IV Reactor Development Preface
SO PROGRESS IN NUCLEAR ENERGY
LA English
DT Editorial Material
C1 Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP McFarlane, H (reprint author), Idaho Natl Lab, 2525 N Fremont, Idaho Falls, ID 83415 USA.
EM harold.mcfarlane@inl.gov
NR 0
TC 1
Z9 1
U1 1
U2 1
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0149-1970
J9 PROG NUCL ENERG
JI Prog. Nucl. Energy
PD NOV
PY 2014
VL 77
BP 239
EP 239
DI 10.1016/j.pnucene.2014.03.008
PG 1
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS3WT
UT WOS:000344206700023
ER
PT J
AU Kelly, JE
AF Kelly, John E.
TI Generation IV International Forum: A decade of progress through
international cooperation
SO PROGRESS IN NUCLEAR ENERGY
LA English
DT Article
DE Generation IV; Reactor systems; Forum; Methodology working groups;
Nuclear fuel; Reactor coolant
AB The Generation IV International Forum has marked significant progress in developing a next generation of reactor technologies that break out of the limitations of currently deployed nuclear energy systems. In slightly more than 10 years, the Forum down selected to the six most promising systems, forged a powerful framework for multilateral cooperation, organized itself into the necessary functional groups, created four overarching research objectives, established a dozen international projects, and completed hundreds of milestones. The Forum has focused research on viability and performance issues. A revised technology development roadmap completed in 2013 lays out the research agenda for the next decade. This paper summarizes the overall accomplishments of the Forum and the development status of the six advanced reactor systems. Accompanying papers describe the related research and development activities for each system. Published by Elsevier Ltd.
C1 US DOE, Generat Int Forum 4, Nucl Reactor Technol, Washington, DC 20585 USA.
RP Kelly, JE (reprint author), US DOE, Generat Int Forum 4, Nucl Reactor Technol, 1000 Independence Ave SW, Washington, DC 20585 USA.
EM johnE.kelly@nuclear.energy.gov
NR 17
TC 8
Z9 8
U1 0
U2 11
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0149-1970
J9 PROG NUCL ENERG
JI Prog. Nucl. Energy
PD NOV
PY 2014
VL 77
BP 240
EP 246
DI 10.1016/j.pnucene.2014.02.010
PG 7
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS3WT
UT WOS:000344206700024
ER
PT J
AU Aoto, K
Dufour, P
Yang, HY
Glatz, JP
Kim, Y
Ashurko, Y
Hill, R
Uto, N
AF Aoto, Kazumi
Dufour, Philippe
Yang Hongyi
Glatz, Jean Paul
Kim, Yeong-il
Ashurko, Yury
Hill, Robert
Uto, Nariaki
TI A summary of sodium-cooled fast reactor development
SO PROGRESS IN NUCLEAR ENERGY
LA English
DT Article
DE Sodium-Cooled Fast Reactor; Closed fuel cycle; Minor actinide
management; Improved safety performance; Long term development
experience; Generation IV International Forum
AB Much of the basic technology for the Sodium-cooled fast Reactor (SFR) has been established through long term development experience with former fast reactor programs, and is being confirmed by the Phenix end-of-life tests in France, the restart of Monju in Japan, the lifetime extension of BN-600 in Russia, and the startup of the China Experimental Fast Reactor in China. Planned startup in 2014 for new SFRs: BN-800 in Russia and PFBR in India, will further enhance the confirmation of the SFR basic technology. Nowadays, the SFR development has advanced to aiming at establishment of the Generation-IV system which is dedicated to sustainable energy generation and actinide management, and several advanced SFR concepts are under development such as PRISM, JSFR, ASTRID, PGSFR, BN-1200, and CFR-600. Generation-IV International Forum is an international collaboration framework where various R&D activities are progressing on design of system and component, safety and operation, advanced fuel, and actinide cycle for the Generation-IV SFR development, and will play a beneficial role of promoting them thorough providing an opportunity to share the past experience and the latest data of design and R&D among countries developing SFR. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Aoto, Kazumi] Japan Atom Energy Agcy, Chiyoda Ku, Tokyo 1008577, Japan.
[Dufour, Philippe] French Alternat Energies & Atom Energy Commiss CE, Cadarache, France.
[Yang Hongyi] CIAE, Beijing, Peoples R China.
[Glatz, Jean Paul] European Commiss, Joint Res Ctr, Karlsruhe, Germany.
[Kim, Yeong-il] Korea Atom Energy Res Inst, Taejon, South Korea.
[Ashurko, Yury] Inst Phys & Power Engn, Obninsk, Russia.
[Hill, Robert] Argonne Natl Lab, Argonne, IL 60439 USA.
[Uto, Nariaki] Japan Atom Energy Agcy, Oarai, Ibaraki, Japan.
RP Aoto, K (reprint author), Japan Atom Energy Agcy, Chiyoda Ku, 2-2-2 Uchisaiwai, Tokyo 1008577, Japan.
EM aoto.kazumi@jaea.go.jp
NR 15
TC 4
Z9 5
U1 7
U2 29
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0149-1970
J9 PROG NUCL ENERG
JI Prog. Nucl. Energy
PD NOV
PY 2014
VL 77
BP 247
EP 265
DI 10.1016/j.pnucene.2014.05.008
PG 19
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS3WT
UT WOS:000344206700025
ER
PT J
AU Futterer, MA
Fu, L
Sink, C
de Groot, S
Pouchon, M
Kim, YW
Carre, F
Tachibana, Y
AF Futterer, Michael A.
Fu, Li
Sink, Carl
de Groot, Sander
Pouchon, Manuel
Kim, Yong Wan
Carre, Frank
Tachibana, Yukio
TI Status of the very high temperature reactor system
SO PROGRESS IN NUCLEAR ENERGY
LA English
DT Article
DE Generation IV international forum; Very high temperature reactor;
Materials; Fuel; Hydrogen production; International cooperation
ID HTR-PM; EXPERIENCE; PROJECT
AB The purpose of this paper is to provide an update on the international effort in the development of the Very High Temperature Reactor system pursued through international collaboration in the Generation IV International Forum (GIF) and an outlook for further activities.
The initial motivations to develop this reactor type are recalled, a historical overview is given about technology developments and test reactors since 1945 and several of the targeted non-electric applications of VHTR power are addressed.
Cooperation in the frame of GIF is clearly beneficial for all project partners. Initially, a wealth of historical experience was collected and shared in the form of documents, dedicated workshops or fuel and material samples. This exchange included properties data, fabrication, irradiation and post-irradiation testing methods, quality assurance, design and analysis tools and methods, as well as the experience in building and operating related equipment. In the further course of the project execution, time, effort and scarce facilities (such as irradiation space or hot cell equipment) are shared, they accelerate progress and create synergies.
Recent highlights from currently active GIF VHTR R&D projects (Materials, Fuel and Fuel Cycle, Hydrogen Production) are then provided and placed into the context of the GIF VHTR signatories' national programs. The majority of these currently focus on licensing requirements for demonstrators of near term process steam production scenarios while more aggressive, longer term and higher temperature applications are mainly pursued to enable thermochemical production of bulk hydrogen.
Based on the VHTR's high technology readiness level, orientations for future R&D are outlined which would contribute to enhancing the system's market readiness level. These include work on System Integration and Assessment, Safety Analysis and Demonstration, Waste Minimization and Cost Reductions.
The inherent safety characteristics of the VHTR are a precious asset for it to become a strong response to today's concerns of nuclear safety, energy security and climate change. (C) 2014 Published by Elsevier Ltd.
C1 [Futterer, Michael A.] Inst Energy & Transport, Joint Res Ctr, Commiss European Communities, NL-1755 ZG Petten, Netherlands.
[Fu, Li] Tsinghua Univ, INEI, Beijing 100084, Peoples R China.
[Sink, Carl] US DOE, Washington, DC 20585 USA.
[de Groot, Sander] NRG, NL-1755 ZG Petten, Netherlands.
[Pouchon, Manuel] Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
[Kim, Yong Wan] Korea Atom Energy Res Inst, Taejon 305353, South Korea.
[Carre, Frank] CEA, F-91191 Gif Sur Yvette, France.
[Tachibana, Yukio] JAEA, Oarai, Ibaraki 3111393, Japan.
RP Futterer, MA (reprint author), Inst Energy & Transport, Joint Res Ctr, Commiss European Communities, NL-1755 ZG Petten, Netherlands.
EM michael.fuetterer@ec.europa.eu; lifu@mail.tsinghua.edu.cn;
carl.sink@nuclear.energy.gov; s.degroot@nrg.eu; manuel.pouchon@psi.ch;
ywkim@kaeri.re.kr; franck.carre@cea.fr; tachibana.yukio@jaea.gojp
RI Pouchon, Manuel Alexandre/J-7213-2015
NR 30
TC 4
Z9 4
U1 2
U2 30
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0149-1970
J9 PROG NUCL ENERG
JI Prog. Nucl. Energy
PD NOV
PY 2014
VL 77
BP 266
EP 281
DI 10.1016/j.pnucene.2014.01.013
PG 16
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS3WT
UT WOS:000344206700026
ER
PT J
AU Serp, J
Allibert, M
Benes, O
Delpech, S
Feynberg, O
Ghetta, V
Heuer, D
Holcomb, D
Ignatiev, V
Kloosterman, JL
Luzzi, L
Merle-Lucotte, E
Uhlir, J
Yoshioka, R
Dai, ZM
AF Serp, Jerome
Allibert, Michel
Benes, Ondrej
Delpech, Sylvie
Feynberg, Olga
Ghetta, Veronique
Heuer, Daniel
Holcomb, David
Ignatiev, Victor
Kloosterman, Jan Leen
Luzzi, Lelio
Merle-Lucotte, Elsa
Uhlir, Jan
Yoshioka, Ritsuo
Dai Zhimin
TI The molten salt reactor (MSR) in generation IV: Overview and
perspectives
SO PROGRESS IN NUCLEAR ENERGY
LA English
DT Article
DE Molten salt reactor; Gen IV; Nuclear systems; Neutronic performance;
Fuel cycle
ID HIGH-TEMPERATURE REACTOR; FUEL-CYCLE; CORE PHYSICS; THORIUM; DESIGN;
SYSTEM
AB Molten Salt Reactors (MSR) with the fuel dissolved in the liquid salt and fluoride-salt-cooled High-temperature Reactors (FHR) have many research themes in common. This paper gives an overview of the international R&D efforts on these reactor types carried out in the framework of Generation-IV. Many countries worldwide contribute to this reactor technology, among which the European Union, France, Japan, Russia and the USA, and for the past few years China and India have also contributed. In general, the international R&D focuses on three main lines of research. The USA focuses on the FHR, which will be a nearer-term application of liquid salt as a reactor coolant, while China also focuses on solid fuel reactors as a precursor to molten salt reactors with liquid fuel and a thermal neutron spectrum. The EU, France and Russia are focusing on the development of a fast spectrum molten salt reactor capable of either breeding or transmutation of actinides from spent nuclear fuel.
Future research topics focus on liquid salt technology and materials behavior, the fuel and fuel cycle chemistry and modeling, and the numerical simulation and safety design aspects of the reactor. MSR development attracts more and more attention every year, because it is generally considered as most sustainable of the six Generation-IV designs with intrinsic safety features. Continuing joint efforts are needed to advance common molten salt reactor technologies. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Serp, Jerome] CEA Marcoule, Radiochem & Proc Dept, Nucl Energy Div, SCPS LEPS, F-30207 Bagnols Sur Ceze, France.
[Benes, Ondrej] Commiss European Communities, Joint Res Ctr, Inst Transuranium Elements, D-76125 Karlsruhe, Germany.
[Delpech, Sylvie] Univ Paris, IPNO, Grp Radiochim, F-91406 Orsay, France.
[Allibert, Michel; Ghetta, Veronique; Heuer, Daniel; Merle-Lucotte, Elsa] UJF Grenoble, INP, IN2P3 CNRS, LPSC, F-38026 Grenoble, France.
[Holcomb, David] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Ignatiev, Victor] Kurchatov Inst, Natl Res Ctr, Moscow, Russia.
[Kloosterman, Jan Leen] Delft Univ Technol, Dept Radiat Sci & Technol, NL-2629 JB Delft, Netherlands.
[Luzzi, Lelio] Politecn Milan, Dept Energy, Nucl Engn Div, I-20133 Milan, Italy.
[Uhlir, Jan] Res Ctr Rez, CZ-25068 Rez, Czech Republic.
[Yoshioka, Ritsuo] Int Thorium Molten Salt Forum, Tokyo, Japan.
[Dai Zhimin] Chinese Acad Sci, Shanghai 201800, Peoples R China.
RP Serp, J (reprint author), CEA Marcoule, Radiochem & Proc Dept, Nucl Energy Div, SCPS LEPS, F-30207 Bagnols Sur Ceze, France.
EM jerome.serp@cea.fr; mallibert@orange.fr; ondrej.benes@ec.europa.eu;
delpech@ipno.in2p3.fr; olga.fein@yandex.ru;
Veronique.Ghetta@lpsc.in2p3.fr; Daniel.Heuer@lpsc.in2p3.fr;
HolcombDE@oml.gov; ignatiev@vver.kiae.ru; J.L.Kloosterman@tudelft.nl;
lelio.luzzi@polimi.it; elsa.merle@lpsc.in2p3.fr; jan.Uhlir@cvrez.cz;
yoshioka@nifty.ne.jp; daizm@sinap.ac.cn
RI Serp, Jerome/C-2935-2016;
OI Serp, Jerome/0000-0001-6677-6352; Holcomb, David/0000-0001-8263-4661;
Luzzi, Lelio/0000-0002-9754-4535
NR 54
TC 43
Z9 50
U1 20
U2 126
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0149-1970
J9 PROG NUCL ENERG
JI Prog. Nucl. Energy
PD NOV
PY 2014
VL 77
BP 308
EP 319
DI 10.1016/j.pnucene.2014.02.014
PG 12
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS3WT
UT WOS:000344206700029
ER
PT J
AU Cisneros-Dozal, LM
Huang, YS
Heikoop, JM
Fawcett, PJ
Fessenden, J
Anderson, RS
Meyers, PA
Larson, T
Perkins, G
Toney, J
Werne, JP
Goff, F
WoldeGabriel, G
Allen, CD
Berke, MA
AF Cisneros-Dozal, Luz M.
Huang, Yongsong
Heikoop, Jeffrey M.
Fawcett, Peter J.
Fessenden, Julianna
Anderson, R. Scott
Meyers, Philip A.
Larson, Toti
Perkins, George
Toney, Jaime
Werne, Josef P.
Goff, Fraser
WoldeGabriel, Giday
Allen, Craig D.
Berke, Melissa A.
TI Assessing the strength of the monsoon during the late Pleistocene in
southwestern United States
SO QUATERNARY SCIENCE REVIEWS
LA English
DT Article
DE Monsoonal precipitation; Hydrogen isotope; Leaf plant waxes;
Southwestern US; Drought
ID NORTH-AMERICAN MONSOON; CLIMATE VARIABILITY; N-ALKANES;
MILLENNIAL-SCALE; DEVILS-HOLE; LEAF WATER; RECORD; PRECIPITATION;
PLANTS; MODEL
AB Improved predictions of drought require an understanding of natural and human-induced climate variability. Long-term records across glacial-interglacial cycles provide the natural component of variability, however few such records exist for the southwestern United States (US) and quantitative or semiquantitative records of precipitation are absent. Here we use the hydrogen isotope (delta D) value of C-28 n-alkanoic acid in lacustrine sediments of Pleistocene age to reconstruct delta D values of precipitation in northern New Mexico over two glacial-interglacial cycles (similar to 550,000-360,000 years before present) and obtain a record of monsoon strength. Overall, reconstructed delta D values range from -53.8 parts per thousand to -94.4 parts per thousand, with a mean value of -77.5 +/- 8 parts per thousand. Remarkably, this variation falls within the measured present-day summer monsoonal and winter weighted means (-50.3 +/- 3 parts per thousand and 106.4 +/- 20 parts per thousand respectively), suggesting that processes similar to those of present time also controlled precipitation during Marine Isotope Stage (MIS) 13 to 10. Using the delta D summer monsoonal and winter mean values as end-members, we interpret our reconstructed delta D record of precipitation as a direct, and semi-quantitative, indicator of monsoon strength during MIS 13 to 10. Interglacial periods were characterized by greater monsoon strength but also greater variability compared to glacial periods. Pronounced cycles in the strength of the monsoon occurred during interglacial periods and in general were positively correlated with maximum mean annual temperatures. Our estimates of monsoon strength are supported by independent proxies of ecosystem productivity, namely, TOC, delta C-13 of TOC and Si/Ti ratio and warm pollen taxa Juniperus and Quercus. Interglacial variability in the strength of the monsoon resembles a response to the land-sea surface temperature contrast (LSTC) except for the early part of MIS 11. During this period, LSTC would have remained relatively strong while monsoonal strength decreased to a minimum. This minimum occurred following the warmest interval of MIS 11, suggesting a more complex driving of monsoon strength during warm periods. In addition, this period of monsoon minimum coincided with a core section of mud-cracked sediments that suggest low monsoonal precipitation was an important factor in the onset of drought. Our estimates of monsoon strength represent a record of natural variability in the region that is relevant to present time, in particular the variability during interglacial MIS 11, which is considered an analog for the current interglacial. Our results suggest that natural variability can cause significant reductions in monsoonal precipitation with the implication of a potentially adverse effect from sustained warming. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Cisneros-Dozal, Luz M.; Heikoop, Jeffrey M.; Fessenden, Julianna; Larson, Toti; Perkins, George; WoldeGabriel, Giday] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA.
[Huang, Yongsong; Toney, Jaime] Brown Univ, Dept Geol Sci, Providence, RI 02912 USA.
[Fawcett, Peter J.; Goff, Fraser] Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA.
[Werne, Josef P.; Berke, Melissa A.] Univ Minnesota, Large Lakes Observ, Duluth, MN 55812 USA.
[Anderson, R. Scott] No Arizona Univ, Sch Earth Sci & Environm Sustainabil, Flagstaff, AZ 86011 USA.
[Anderson, R. Scott] No Arizona Univ, Lab Paleoecol, Bilby Res Ctr, Flagstaff, AZ 86011 USA.
[Meyers, Philip A.] Univ Michigan, Dept Earth & Environm Sci, Ann Arbor, MI 48109 USA.
[Allen, Craig D.] USGS Ft Collins Sci Ctr, Jemez Mt Field Stn, Los Alamos, NM 87544 USA.
RP Cisneros-Dozal, LM (reprint author), Scottish Univ Environm Res Ctr, Nat Environm Res Council, Radiocarbon Facil East Kilbride, E Kilbride G75 0QF, Lanark, Scotland.
EM Malu.Cisneros@glasgow.ac.uk
RI Heikoop, Jeffrey/C-1163-2011; Toney, Jaime/I-5083-2012;
OI Toney, Jaime/0000-0003-3182-6887; Heikoop, Jeffrey/0000-0001-7648-3385
FU NSF [P2C2]; IGPP LANL; USGS Western Mountain Initiative
FX We thank LRC/LacCore for assistance with core sampling. We thank two
anonymous reviewers for their helpful comments on this manuscript. This
work was supported by the NSF P2C2, IGPP LANL and the USGS Western
Mountain Initiative.
NR 46
TC 1
Z9 1
U1 1
U2 21
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0277-3791
J9 QUATERNARY SCI REV
JI Quat. Sci. Rev.
PD NOV 1
PY 2014
VL 103
BP 81
EP 90
DI 10.1016/j.quascirev.2014.08.022
PG 10
WC Geography, Physical; Geosciences, Multidisciplinary
SC Physical Geography; Geology
GA AS3YM
UT WOS:000344211000007
ER
PT J
AU Romanyukha, A
Trompier, F
Reyes, RA
Christensen, DM
Iddins, CJ
Sugarman, SL
AF Romanyukha, Alexander
Trompier, Francois
Reyes, Ricardo A.
Christensen, Doran M.
Iddins, Carol J.
Sugarman, Stephen L.
TI Electron paramagnetic resonance radiation dose assessment in fingernails
of the victim exposed to high dose as result of an accident
SO RADIATION AND ENVIRONMENTAL BIOPHYSICS
LA English
DT Article
DE EPR; ESR; Radiation accident; Fingernail dosimetry
ID EPR DOSIMETRY; RADICALS; ESR
AB In this paper, we report results of radiation dose measurements in fingernails of a worker who sustained a radiation injury to his right thumb while using 130 kVp X-ray for nondestructive testing. Clinically estimated absorbed dose was about 20-25 Gy. Electron paramagnetic resonance (EPR) dose assessment was independently carried out by two laboratories, the Naval Dosimetry Center (NDC) and French Institut de Radioprotection et de SA >> ret, Nucl,aire (IRSN). The laboratories used different equipments and protocols to estimate doses in the same fingernail samples. NDC used an X-band transportable EPR spectrometer, e-scan produced by Bruker BioSpin, and a universal dose calibration curve. In contrast, IRSN used a more sensitive Q-band stationary spectrometer (EMXplus) with a new approach for the dose assessment (dose saturation method), derived by additional dose irradiation to known doses. The protocol used by NDC is significantly faster than that used by IRSN, nondestructive, and could be done in field conditions, but it is probably less accurate and requires more sample for the measurements. The IRSN protocol, on the other hand, potentially is more accurate and requires very small amount of sample but requires more time and labor. In both EPR laboratories, the intense radiation-induced signal was measured in the accidentally irradiated fingernails and the resulting dose assessments were different. The dose on the fingernails from the right thumb was estimated as 14 +/- A 3 Gy at NDC and as 19 +/- A 6 Gy at IRSN. Both EPR dose assessments are given in terms of tissue kerma. This paper discusses the experience gained by using EPR for dose assessment in fingernails with a stationary spectrometer versus a portable one, the reasons for the observed discrepancies in dose, and potential advantages and disadvantages of each approach for EPR measurements in fingernails.
C1 [Romanyukha, Alexander] Naval Dosimetry Ctr, Bethesda, MD 20889 USA.
[Trompier, Francois] Inst Radioprotect Surete Nucl, Fontenay Aux Roses, France.
[Reyes, Ricardo A.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
[Christensen, Doran M.; Iddins, Carol J.; Sugarman, Stephen L.] ORISE, REAC TS, Oak Ridge, TN USA.
RP Romanyukha, A (reprint author), Naval Dosimetry Ctr, Bethesda, MD 20889 USA.
EM alexander.romanyukha@med.navy.mil
OI TROMPIER, Francois/0000-0002-8776-6572
FU Dartmouth Physically Based Center for Medical Countermeasures Against
Radiation; NIH from the National Institute of Allergy and Infectious
Diseases [U19-AI091173]
FX The authors would like to thank Dr. Art Heiss (BrukerBiospin USA) for
excellent technical support of this work. The authors would like to
acknowledge funding from the Pilot Project Program of the Dartmouth
Physically Based Center for Medical Countermeasures Against Radiation,
with NIH funding from the National Institute of Allergy and Infectious
Diseases (U19-AI091173).
NR 20
TC 13
Z9 13
U1 0
U2 6
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0301-634X
EI 1432-2099
J9 RADIAT ENVIRON BIOPH
JI Radiat. Environ. Biophys.
PD NOV
PY 2014
VL 53
IS 4
BP 755
EP 762
DI 10.1007/s00411-014-0553-6
PG 8
WC Biology; Biophysics; Environmental Sciences; Radiology, Nuclear Medicine
& Medical Imaging
SC Life Sciences & Biomedicine - Other Topics; Biophysics; Environmental
Sciences & Ecology; Radiology, Nuclear Medicine & Medical Imaging
GA AS3KZ
UT WOS:000344177800014
PM 24957016
ER
PT J
AU Hayes, DB
Bellgraph, BJ
Roth, BM
Dauble, DD
Mueller, RP
AF Hayes, D. B.
Bellgraph, B. J.
Roth, B. M.
Dauble, D. D.
Mueller, R. P.
TI TIMING OF REDD CONSTRUCTION BY FALL CHINOOK SALMON IN THE HANFORD REACH
OF THE COLUMBIA RIVER
SO RIVER RESEARCH AND APPLICATIONS
LA English
DT Article
DE redd construction; Chinook salmon; modelling; water temperature;
logistic regression
ID UPSTREAM MIGRATION; TEMPERATURE; HABITATS; FLOW
AB Spawning habits of fall Chinook salmon in the Hanford Reach of the Columbia River have been documented with annual aerial surveys since 1948. We developed a series of models analysing these data, exploring the influence of environmental factors on the timing of redd construction. These models included a logistic regression and a dynamic modelling approach, with combinations of day of year (as a surrogate for environmental cues such as day length), water temperature and discharge as potential explanatory factors. Results of these analyses indicate that day of year was the strongest predictor of the timing of redd construction, but with significant modifying effects of water temperature and discharge. The dynamic modelling approach provides substantial advantages over a traditional logistic regression, including (1) the ability to treat data collected at non-synchronous time intervals in a consistent fashion and (2) the ability to easily implement complex functions (e.g., threshold responses) relating behaviour to environmental cues. Evaluation of the series as a whole indicates that the median date of redd construction has increased over time, from approximately day 299 in 1950 to day 307 in 2010, as has the temperature on Oct 1 (16.3 degrees C-18.1 degrees C). The degree to which these changes are caused by climate change or dam operations is uncertain, however. Copyright (c) 2013 John Wiley & Sons, Ltd.
C1 [Hayes, D. B.; Roth, B. M.] Michigan State Univ, Dept Fisheries & Wildlife, E Lansing, MI 48824 USA.
[Bellgraph, B. J.; Dauble, D. D.; Mueller, R. P.] Pacific NW Natl Lab, Ecol Grp, Richland, WA 99352 USA.
RP Hayes, DB (reprint author), Michigan State Univ, Dept Fisheries & Wildlife, E Lansing, MI 48824 USA.
EM hayesdan@msu.edu
FU Grant County Public Utility District (GCPUD)
FX We thank Grant County Public Utility District (GCPUD) for funding the
development of the HAnford Reach fall CHinook productivitY (HierARCHY)
simulation model, which ultimately led to the analysis and formation of
this manuscript, and for funding a separate project from which
environmental data were obtained. We specifically thank Russell Langshaw
and Todd Pearsons of GCPUD for providing insight and guidance on spawn
timing and other life history data related to Priest Rapids Dam
operating conditions; Geoff McMichael at the Pacific Northwest National
Laboratory (PNNL) for sharing his knowledge of the Hanford Reach
population of fall Chinook salmon that formed some of the original study
impetus and for reviewing the draft manuscript; and William Perkins,
Marshall Richmond, and Sara Niehus of PNNL for producing the Hanford
Reach environmental data using the MASS2 hydrologic model.
NR 20
TC 1
Z9 1
U1 1
U2 8
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1535-1459
EI 1535-1467
J9 RIVER RES APPL
JI River Res. Appl.
PD NOV
PY 2014
VL 30
IS 9
BP 1110
EP 1119
DI 10.1002/rra.2719
PG 10
WC Environmental Sciences; Water Resources
SC Environmental Sciences & Ecology; Water Resources
GA AS0SO
UT WOS:000343989000004
ER
PT J
AU Pan, PZ
Rutqvist, J
Feng, XT
Yan, F
Jiang, Q
AF Pan, Peng-Zhi
Rutqvist, Jonny
Feng, Xia-Ting
Yan, Fei
Jiang, Quan
TI A Discontinuous Cellular Automaton Method for Modeling Rock Fracture
Propagation and Coalescence Under Fluid Pressurization Without Remeshing
SO ROCK MECHANICS AND ROCK ENGINEERING
LA English
DT Article
DE Crack propagation; Fluid pressure; Rock discontinuous cellular
automaton; Level set method; Partition of unity; Stress intensity factor
ID FINITE-ELEMENT-METHOD; DRIVEN FRACTURES; CRACK-GROWTH; BRITTLE MATERIALS
AB We present a formulation of a discontinuous cellular automaton method for modeling of rock fluid pressure induced fracture propagation and coalescence without the need for remeshing. Using this method, modelers discretize a discontinuous rock-mass domain into a system composed of cell elements in which the numerical grid and crack geometry are independent of each other. The level set method, which defines the relationship between cracks and the numerical grid, is used for tracking the crack location and its propagation path. As a result, no explicit meshing for crack surfaces and no remeshing for crack growth are needed. Discontinuous displacement functions, i.e., the Heaviside functions for crack surfaces and asymptotic crack-tip displacement fields, are introduced to represent complex discontinuities. When two cracks intersect, the tip enrichment of the approaching crack is annihilated and is replaced by a Heaviside enrichment. We use the "partition of unity" concept to improve the integral precision for elements, including crack surfaces and crack tips. From this, we develop a cellular automaton updating rule to calculate the stress field induced by fluid pressure. Then, the stress is substituted into a mixed-mode fracture criterion. The cracking direction is determined from the stress analysis around the crack tips, where fracture fluid is assumed to penetrate into the newly developed crack, leading to a continuous crack propagation. Finally, we performed verification against independent numerical models and analytic solutions and conducted a number of simulations with different crack geometries and crack arrangements to show the robustness and applicability of this method.
C1 [Pan, Peng-Zhi; Feng, Xia-Ting; Yan, Fei; Jiang, Quan] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China.
[Pan, Peng-Zhi; Rutqvist, Jonny] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Pan, PZ (reprint author), Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China.
EM pzpan@whrsm.ac.cn
RI Rutqvist, Jonny/F-4957-2015
OI Rutqvist, Jonny/0000-0002-7949-9785
FU National Natural Science Foundation of China [51322906, 41272349];
National Basic Research Program of China [2010CB732006]; US Dept. of
Energy [DE-AC02-05CH11231]
FX This work was finically supported by the National Natural Science
Foundation of China under Grant Nos. 51322906, 41272349 and the National
Basic Research Program of China under Grant No. 2010CB732006, and in
part, supported by the US Dept. of Energy under contract No.
DE-AC02-05CH11231. We thank Daisuke Asahina and Daniel Hawkes at LBNL
for reviewing the initial version of the paper.
NR 44
TC 1
Z9 2
U1 1
U2 14
PU SPRINGER WIEN
PI WIEN
PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA
SN 0723-2632
EI 1434-453X
J9 ROCK MECH ROCK ENG
JI Rock Mech. Rock Eng.
PD NOV
PY 2014
VL 47
IS 6
BP 2183
EP 2198
DI 10.1007/s00603-013-0522-4
PG 16
WC Engineering, Geological; Geosciences, Multidisciplinary
SC Engineering; Geology
GA AS6UK
UT WOS:000344397400016
ER
PT J
AU Ryals, R
Kaiser, M
Torn, MS
Berhe, AA
Silver, WL
AF Ryals, R.
Kaiser, M.
Torn, M. S.
Berhe, A. Asefaw
Silver, W. L.
TI Impacts of organic matter amendments on carbon and nitrogen dynamics in
grassland soils (vol 68, pg 52, 2014)
SO SOIL BIOLOGY & BIOCHEMISTRY
LA English
DT Correction
C1 [Ryals, R.; Silver, W. L.] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA.
[Kaiser, M.; Berhe, A. Asefaw] Univ Calif Merced, Sch Nat Sci, Atwater, CA 95301 USA.
[Torn, M. S.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Ryals, R (reprint author), Brown Univ, MacMillan Hall Box 1951, Providence, RI 02906 USA.
EM rebecca_ryals@brown.edu
RI Torn, Margaret/D-2305-2015
NR 1
TC 0
Z9 0
U1 5
U2 37
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-0717
J9 SOIL BIOL BIOCHEM
JI Soil Biol. Biochem.
PD NOV
PY 2014
VL 78
BP 340
EP 340
DI 10.1016/j.soilbio.2014.07.001
PG 1
WC Soil Science
SC Agriculture
GA AS0EH
UT WOS:000343950600039
ER
PT J
AU White, JF
Holladay, JE
Zacher, AA
Frye, JG
Werpy, TA
AF White, James F.
Holladay, Johnathan E.
Zacher, Allan A.
Frye, John G., Jr.
Werpy, Todd A.
TI Challenges in Catalytic Manufacture of Renewable Pyrrolidinones from
Fermentation Derived Succinate
SO TOPICS IN CATALYSIS
LA English
DT Article; Proceedings Paper
CT 25th Biennial Conference of the Organic-Reactions-Catalysis-Society
(ORCS)
CY MAR 02-06, 2014
CL Tucson, AZ
SP Organ React Catalysis Soc, Eastman Chem Co, Heraeus, Amegen, Pfizer, Takasago, Mettler Toledo, Biotage, ACS Catalysis, ACS Sustainable Chem & Engn, Pacific NW Natl Lab, W R Grace, Parr, BASF, Evonik
DE Succinic acid; Hydrogenation; N-Methyl succimide;
N-Methyl-2-pyrrolidinone; 2-pyrrolidinone; Renewable resources
ID ACID
AB Fermentation derived succinic acid ammonium salt is an ideal precursor for manufacture of renewable N-methyl pyrrolidinone (NMP) or 2-pyrrolidinone (2P) via heterogeneous catalysis. However, there are many challenges to making this a practical reality. Chief among the challenges is avoiding catalyst poisoning by fermentation by- and co-products. Battelle/Pacific Northwest National Laboratory have developed an effective technology strategy for this purpose. The technology is a combination of purely thermal processing, followed by simple catalytic hydrogenation that together avoids catalyst poisoning from fermentation impurities and provides high selectivity and yields of NMP or 2P.
C1 [White, James F.] 3RiversCatalysis LLC, Richland, WA 99352 USA.
[Holladay, Johnathan E.; Zacher, Allan A.; Frye, John G., Jr.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Werpy, Todd A.] JRR Res Ctr, Decatur, IL 62521 USA.
RP White, JF (reprint author), 3RiversCatalysis LLC, 409 Adair Dr, Richland, WA 99352 USA.
EM 3riverscatalysis@charter.net
NR 35
TC 1
Z9 1
U1 3
U2 14
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1022-5528
EI 1572-9028
J9 TOP CATAL
JI Top. Catal.
PD NOV
PY 2014
VL 57
IS 17-20
BP 1325
EP 1334
DI 10.1007/s11244-014-0299-z
PG 10
WC Chemistry, Applied; Chemistry, Physical
SC Chemistry
GA AS3EC
UT WOS:000344158300004
ER
PT J
AU Allgeier, AM
Andersen, D
Bartberger, MD
Bunel, EE
Larsen, RD
Liu, PL
Storz, T
Tedrow, JS
AF Allgeier, Alan M.
Andersen, Denise
Bartberger, Michael D.
Bunel, Emilio E.
Larsen, Robert D.
Liu, Pingli
Storz, Thomas
Tedrow, Jason S.
TI Reductive Amination Without the Aldehyde: Use of a Ketolactol as an
Aldehyde Surrogate
SO TOPICS IN CATALYSIS
LA English
DT Article; Proceedings Paper
CT 25th Biennial Conference of the Organic-Reactions-Catalysis-Society
(ORCS)
CY MAR 02-06, 2014
CL Tucson, AZ
SP Organ React Catalysis Soc, Eastman Chem Co, Heraeus, Amegen, Pfizer, Takasago, Mettler Toledo, Biotage, ACS Catalysis, ACS Sustainable Chem & Engn, Pacific NW Natl Lab, W R Grace, Parr, BASF, Evonik
DE Reductive amination; Ketolactol; gamma-aminoacid; Process chemistry;
Mass transfer; Density functional theory
ID MASS-TRANSFER; BISULFITE ADDUCTS; ACIDS; HYDROGENATION; REACTORS
AB To overcome stability issues associated with the use of an aldehyde in a catalytic reductive amination reaction, a cyclic ketolactol (omega-hydroxylactone) was employed as an aldehyde surrogate to form a gamma-aminoacid. The reaction proceeded most favorably over a Pt/C catalyst. The thermodynamics of each step were evaluated using density functional theory calculations, which correctly predicted the dominance of the ring-closed lactol reactant, yet suggested a preference for a ring-opened iminium intermediate upon the initial, slightly endoergic addition of amine substrate. Exoergic hydrogenation of this intermediate provided the thermodynamic driving force for the overall transformation. During development, the reaction was observed to depend significantly on the volumetric gas to liquid mass transfer coefficient (k(L)a) and this parameter was optimized to ensure successful scale up in a 400 L stirred tank reactor.
C1 [Allgeier, Alan M.] EI duPont Nemours & Co, Cent Res & Dev, Wilmington, DE 19880 USA.
[Andersen, Denise] Threshold Pharmaceut, San Francisco, CA 94080 USA.
[Bartberger, Michael D.; Tedrow, Jason S.] Amgen Inc, Thousand Oaks, CA 91320 USA.
[Bunel, Emilio E.] Argonne Natl Lab, Lemont, IL 60439 USA.
[Larsen, Robert D.] Alcon, Ft Worth, TX 76134 USA.
[Liu, Pingli] Incyte Corp, Wilmington, DE 19880 USA.
[Storz, Thomas] Ironwood Pharmaceut, Cambridge, MA 02142 USA.
RP Allgeier, AM (reprint author), EI duPont Nemours & Co, Cent Res & Dev, Wilmington, DE 19880 USA.
EM alan.m.allgeier@dupont.com; michael.bartberger@amgen.com
OI Allgeier, Alan/0000-0001-9122-2108
NR 26
TC 0
Z9 0
U1 1
U2 6
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1022-5528
EI 1572-9028
J9 TOP CATAL
JI Top. Catal.
PD NOV
PY 2014
VL 57
IS 17-20
BP 1335
EP 1341
DI 10.1007/s11244-014-0300-x
PG 7
WC Chemistry, Applied; Chemistry, Physical
SC Chemistry
GA AS3EC
UT WOS:000344158300005
ER
PT J
AU Diaz-San Segundo, F
Dias, CC
Moraes, MP
Weiss, M
Perez-Martin, E
Salazar, AM
Grubman, MJ
de los Santos, T
AF Diaz-San Segundo, Fayna
Dias, Camila C.
Moraes, Mauro P.
Weiss, Marcelo
Perez-Martin, Eva
Salazar, Andres M.
Grubman, Marvin J.
de los Santos, Teresa
TI Poly ICLC increases the potency of a replication-defective human
adenovirus vectored foot-and-mouth disease vaccine
SO VIROLOGY
LA English
DT Article
DE Foot-and-mouth disease; Foot-and-mouth disease virus;
Replication-defective adenovirus; Vaccines; Adjuvants; Neutralizing
antibodies; Cell-mediated immunity; Poly ICLC
ID POLYRIBOINOSINIC-POLYRIBOCYTIDYLIC ACID; EQUINE ENCEPHALOMYELITIS VIRUS;
PORCINE INTERFERON-ALPHA; NONSTRUCTURAL PROTEIN 2B; IMMUNE-RESPONSES;
ENDOPLASMIC-RETICULUM; THERAPEUTIC EFFICACY; POLYCYTIDYLIC ACID;
NONHUMAN-PRIMATES; SUBUNIT VACCINE
AB Foot-and-mouth disease virus (FMDV) causes a highly contagious disease of cloven-hoofed animals. We have previously demonstrated that a replication-defective human adenovirus 5 vector carrying the FMDV capsid coding region of serotype A24 Cruzeiro (Ad5-CI-A24-2B) protects swine and cattle against FMDV challenge by 7 days post-vaccination. However, since relatively large amounts of Ad5-CI-A24-2B are required to induce protection this strategy could be costly for livestock production. Poly ICLC is a synthetic double stranded RNA that activates multiple innate and adaptive immune pathways. In this study, we have tested for the first time, the adjuvant effect of poly ICLC in combination with Ad5-CI-A24-2B in swine. We found that the combination resulted in a reduction of the vaccine protective dose by 80-fold. Interestingly, the lowest dose of Ad5-CI-A24-2B plus I mg of poly ICLC protected animals against challenge even in the absence of detectable FMDV-specific neutralizing antibodies at the time of challenge. Published by Elsevier Inc.
C1 [Diaz-San Segundo, Fayna; Dias, Camila C.; Moraes, Mauro P.; Weiss, Marcelo; Perez-Martin, Eva; Grubman, Marvin J.; de los Santos, Teresa] ARS, Plum Isl Anim Dis Ctr, USDA, Greenport, NY 11944 USA.
[Dias, Camila C.; Weiss, Marcelo; Perez-Martin, Eva] Oak Ridge Inst Sci & Educ, PIADC Res Participat Program, Oak Ridge, TN 37831 USA.
[Moraes, Mauro P.] Univ Connecticut, Dept Pathobiol & Vet Sci, Storrs, CT 06269 USA.
[Salazar, Andres M.] Oncovir Inc, Washington, DC 20008 USA.
RP Grubman, MJ (reprint author), ARS, Plum Isl Anim Dis Ctr, USDA, POB 848, Greenport, NY 11944 USA.
EM marvin.grubman@ars.usda.gov; teresa.delossantos@ars.usda.gov
RI Weiss, Marcelo/I-1274-2012
OI Weiss, Marcelo/0000-0001-7902-3210
FU Plum Island Animal Disease Research Participation Program; USDA CRIS
[1940-32000-057-00D]; Agricultural Research Service, USDA; Science and
Technology Directorate of the U.S. Department of Homeland Security
[HSHQPD-07-X-00003, HSHQDC-09-X-00373]
FX This research was supported in part by the Plum Island Animal Disease
Research Participation Program administered by the Oak Ridge Institute
for Science and Education through an interagency agreement between the
U.S. Department of Energy and the U.S. Department of Agriculture (USDA)
(appointments of Camila C.A. Dias, Marcelo Weiss, and Eva Perez-Martin),
by USDA CRIS project 1940-32000-057-00D, (M.J. Grubman and T. de los
Santos), and by an interagency agreement between Agricultural Research
Service, USDA and the Science and Technology Directorate of the U.S.
Department of Homeland Security under awards HSHQPD-07-X-00003 and
HSHQDC-09-X-00373 (M.J. Grubman and T. de los Santos). The authors thank
Fawzi Mohamed, FADDL, for performing a histopathological analysis on the
animals that died in the various trials; and the animal care staff at
PIADC for their professional support and assistance.
NR 61
TC 3
Z9 3
U1 3
U2 6
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0042-6822
J9 VIROLOGY
JI Virology
PD NOV
PY 2014
VL 468
BP 283
EP 292
DI 10.1016/j.virol.2014.08.012
PG 10
WC Virology
SC Virology
GA AS7KF
UT WOS:000344434400033
PM 25216089
ER
PT J
AU McIntosh, KG
Neal, JA
Nath, P
Havrilla, GJ
AF McIntosh, Kathryn G.
Neal, J. Avery
Nath, Pulak
Havrilla, George J.
TI Microfluidic sample preparation for elemental analysis in liquid samples
using micro X-ray fluorescence spectrometry
SO X-RAY SPECTROMETRY
LA English
DT Article
ID SCATTERING
AB The integration of microfluidic devices with micro X-ray fluorescence (micro-XRF) spectrometry offers a new approach for the direct characterization of liquid materials. A sample presentation method based on use of small volumes (<5 mu l) of liquid contained in an XRF-compatible device has been developed. In this feasibility study, a prototype chip was constructed, and its suitability for XRF analysis of liquids was evaluated, along with that of a commercially produced microfluidic device. Each of the chips had an analytical chamber which contained approximately 1 mu l of sample when the device was filled using a pipette. The performance of the chips was assessed using micro-XRF and high resolution monochromatic wavelength dispersive X-ray fluorescence, a method that provides highly selective and sensitive detection of actinides. The intended application of the device developed in this study is for measurement of Pu in spent nuclear fuel. Aqueous solutions and a synthetic spent fuel matrix were used to evaluate the devices. Sr, which has its K line energy close to the Pu L line at 14.2keV, was utilized as a surrogate for Pu because of reduced handling risks. Between and within chip repeatability were studied, along with linearity of response and accuracy. The limit of detection for Sr determination in the chip is estimated at 5ng/mu l (ppm). This work demonstrates the applicability of microfluidic sample preparation to liquid characterization by XRF, and provides a basis for further development of this approach for elemental analysis within a range of sample types. Copyright (c) 2014 John Wiley & Sons, Ltd.
C1 [McIntosh, Kathryn G.; Neal, J. Avery; Nath, Pulak; Havrilla, George J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP McIntosh, KG (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM kmcintosh@lanl.gov
OI Havrilla, George/0000-0003-2052-7152; McIntosh,
Kathryn/0000-0002-8623-403X
FU U.S. Department of Energy through the LANL/LDRD Program under the
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 of the U.S. Department
of Energy [DE-AC52-06NA25396]
FX The authors thank Velma M. Lopez and Eli J. Berg of C-CDE at LANL for
their contributions in sample preparation and microscope imaging. 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), and 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.
NR 18
TC 3
Z9 3
U1 1
U2 11
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0049-8246
EI 1097-4539
J9 X-RAY SPECTROM
JI X-Ray Spectrom.
PD NOV-DEC
PY 2014
VL 43
IS 6
BP 332
EP 337
DI 10.1002/xrs.2559
PG 6
WC Spectroscopy
SC Spectroscopy
GA AS3LG
UT WOS:000344178700005
ER
PT J
AU Howley, K
Wasem, J
AF Howley, Kirsten
Wasem, Joseph
TI A simplified approach to uncertainty quantification for orbits in
impulsive deflection scenarios
SO ACTA ASTRONAUTICA
LA English
DT Article
DE Asteroids: dynamics, individual (2011 AG5); Comets: dynamics; Orbit:
determination uncertainty; Satellites: dynamics; Mission planning
ID NEAR-EARTH ASTEROIDS; IMPACTS; CRATER
AB For the majority of near-Earth Asteroid (NEA) impact scenarios, optimal deflection strategies use a massive impactor or a nuclear explosive, either of which produce an impulsive change to the orbit of the object However, uncertainties regarding the object composition and the efficiency of the deflection event lead to a non-negligible uncertainty in the deflection delta-velocity. Propagating this uncertainty through the resulting orbit will create a positional uncertainty envelope at the original impact epoch. We calculate a simplified analytic evolution for impulsively deflected NEAs and perform a full propagation of uncertainties that is nonlinear in the deflection delta-velocity vector. This provides an understanding of both the optimal deflection velocities needed for a given scenario, as well as the resulting positional uncertainty and corresponding residual impact probability. Confidence of a successful deflection attempt as a function of launch opportunities is also discussed for a specific case. (C) 2014 IAA. Published by Elsevier Ltd. All rights reserved.
C1 [Howley, Kirsten; Wasem, Joseph] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Howley, K (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA.
EM howley1@llnl.gov; wasem2@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Laboratory Directed Research and Development
Program at LLNL [12-ERD-005]
FX LLNL-JRNL-643133. This work was performed under the auspices of the U.S.
Department of Energy by Lawrence Livermore National Laboratory under
Contract DE-AC52-07NA27344, and partially funded by the Laboratory
Directed Research and Development Program at LLNL under tracking code
12-ERD-005.
NR 30
TC 0
Z9 0
U1 0
U2 1
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0094-5765
EI 1879-2030
J9 ACTA ASTRONAUT
JI Acta Astronaut.
PD NOV
PY 2014
VL 104
IS 1
SI SI
BP 206
EP 219
DI 10.1016/j.actaastro.2014.06.041
PG 14
WC Engineering, Aerospace
SC Engineering
GA AR8RH
UT WOS:000343841700021
ER
PT J
AU Wagnild, R
Candler, GV
AF Wagnild, Ross
Candler, Graham V.
TI Computational Verification of Acoustic Damping in High-Enthalpy
Environments
SO AIAA JOURNAL
LA English
DT Article
ID BOUNDARY-LAYER-TRANSITION; SOUND
C1 [Wagnild, Ross] Sandia Natl Labs, Aerosci Dept, Albuquerque, NM 87123 USA.
[Candler, Graham V.] Univ Minnesota, Dept Aerosp Engn & Mech, Minneapolis, MN 55455 USA.
RP Wagnild, R (reprint author), Sandia Natl Labs, Aerosci Dept, Albuquerque, NM 87123 USA.
FU U.S. Air Force Office of Scientific Research (AFOSR) [FA9550-10-1-0563,
FA955010-1-0352]; Department of Defense National Security Science and
Engineering Faculty Fellowship; U.S. Department of Energy's National
Nuclear Security Administration [DE-AC04-94AL85000]
FX This work was sponsored by the U.S. Air Force Office of Scientific
Research (AFOSR) under grants FA9550-10-1-0563 and FA955010-1-0352 and
by the Department of Defense National Security Science and Engineering
Faculty Fellowship. Sandia National Laboratories is a multiprogram
laboratory managed and operated by Sandia Corporation, a wholly owned
subsidiary of Lockheed Martin Corporation, for the U.S. Department of
Energy's National Nuclear Security Administration under contract
DE-AC04-94AL85000. The views and conclusions contained herein are those
of the author and should not be interpreted as necessarily representing
the official policies or endorsements, either expressed or implied, of
the AFOSR, Sandia, or the U.S. Government.
NR 20
TC 0
Z9 0
U1 2
U2 5
PU AMER INST AERONAUTICS ASTRONAUTICS
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 0001-1452
EI 1533-385X
J9 AIAA J
JI AIAA J.
PD NOV
PY 2014
VL 52
IS 11
BP 2615
EP 2618
DI 10.2514/1.J052802
PG 4
WC Engineering, Aerospace
SC Engineering
GA AR8AX
UT WOS:000343799000021
ER
PT J
AU Alford, ER
Lindblom, SD
Pittarello, M
Freeman, JL
Fakra, SC
Marcus, MA
Broeckling, C
Pilon-Smits, EAH
Paschke, MW
AF Alford, Elan R.
Lindblom, Stormy D.
Pittarello, Marco
Freeman, John L.
Fakra, Sirine C.
Marcus, Matthew A.
Broeckling, Corey
Pilon-Smits, Elizabeth A. H.
Paschke, Mark W.
TI ROLES OF RHIZOBIAL SYMBIONTS IN SELENIUM HYPERACCUMULATION IN ASTRAGALUS
(FABACEAE)
SO AMERICAN JOURNAL OF BOTANY
LA English
DT Article
DE Astragalus; Fabaceae; gamma-glutamyl-methylselenocysteine;
hyperaccumulation; legume; nodulation; selenium; symbiosis; x-ray
absorption spectroscopy
ID NITROGEN-FIXATION; PLANTS; RHIZOSPHERE; ACCUMULATION; GROWTH; SOIL;
SELENOCYSTEINE; SULFUR; HEALTH; METAL
AB Premise of the study: Are there dimensions of symbiotic root interactions that are overlooked because plant mineral nutrition is the foundation and, perhaps too often, the sole explanation through which we view these relationships? In this paper we investigate how the root nodule symbiosis in selenium (Se) hyperaccumulator and nonaccumulator Astragalus species influences plant selenium (Se) accumulation.
Methods: In greenhouse studies, Se was added to nodulated and nonnodulated hyperaccumulator and nonaccumulator Astragalus plants, followed by investigation of nitrogen (N)-Se relationships. Selenium speciation was also investigated, using x-ray microprobe analysis and liquid chromatography-mass spectrometry (LC-MS).
Key results: Nodulation enhanced biomass production and Se to S ratio in both hyperaccumulator and nonaccumulator plants. The hyperaccumulator contained more Se when nodulated, while the nonaccumulator contained less S when nodulated. Shoot [ Se] was positively correlated with shoot N in Se-hyperaccumulator species, but not in nonhyperaccumulator species. The x-ray microprobe analysis showed that hyperaccumulators contain significantly higher amounts of organic Se than nonhyperaccumulators. LC-MS of A. bisulcatus leaves revealed that nodulated plants contained more gamma-glutamyl-methylselenocysteine (gamma-Glu-MeSeCys) than nonnodulated plants, while MeSeCys levels were similar.
Conclusions: Root nodule mutualism positively affects Se hyperaccumulation in Astragalus. The microbial N supply particularly appears to contribute glutamate for the formation of gamma-Glu-MeSeCys. Our results provide insight into the significance of symbiotic interactions in plant adaptation to edaphic conditions. Specifically, our findings illustrate that the importance of these relationships are not limited to alleviating macronutrient deficiencies.
C1 [Alford, Elan R.; Pilon-Smits, Elizabeth A. H.; Paschke, Mark W.] Colorado State Univ, Grad Degree Program Ecol, Ft Collins, CO 80523 USA.
[Alford, Elan R.; Paschke, Mark W.] Colorado State Univ, Dept Forest & Rangeland Stewardship, Ft Collins, CO 80523 USA.
[Lindblom, Stormy D.; Pittarello, Marco; Freeman, John L.; Pilon-Smits, Elizabeth A. H.] Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA.
[Fakra, Sirine C.; Marcus, Matthew A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Broeckling, Corey] Colorado State Univ, Prote & Metabol Facil, Ft Collins, CO 80523 USA.
RP Pilon-Smits, EAH (reprint author), Colorado State Univ, Grad Degree Program Ecol, Ft Collins, CO 80523 USA.
EM elizabeth.pilon-smits@colostate.edu
OI Alford, Elan/0000-0001-9602-0177
FU National Science Foundation [IOS-0817748]; Office of Science, Office of
Basic Energy Sciences, U.S. Department of Energy [DE-AC02-05CH11231]
FX The authors thank J. Cappa for help preparing plants for selenoamino
acid analysis and L. Bodistow for field assistance. They also thank the
student crew at the Restoration Ecology laboratory at Colorado State
University for root washing assistance. National Science Foundation
grant # IOS-0817748 provided funding to E.A.H.P.-S. The operations of
the Advanced Light Source at Lawrence Berkeley National Laboratory are
supported by the Director, Office of Science, Office of Basic Energy
Sciences, U.S. Department of Energy under contract number
DE-AC02-05CH11231.
NR 65
TC 3
Z9 3
U1 3
U2 29
PU BOTANICAL SOC AMER INC
PI ST LOUIS
PA PO BOX 299, ST LOUIS, MO 63166-0299 USA
SN 0002-9122
EI 1537-2197
J9 AM J BOT
JI Am. J. Bot.
PD NOV
PY 2014
VL 101
IS 11
BP 1895
EP 1905
DI 10.3732/ajb.1400223
PG 11
WC Plant Sciences
SC Plant Sciences
GA AS1CC
UT WOS:000344013400007
PM 25366855
ER
PT J
AU Pumera, M
Polsky, R
Banks, C
AF Pumera, Martin
Polsky, Ronen
Banks, Craig
TI Graphene in analytical science
SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY
LA English
DT Editorial Material
C1 [Pumera, Martin] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 637371, Singapore.
[Polsky, Ronen] Sandia Natl Labs, Albuquerque, NM 87123 USA.
[Banks, Craig] Manchester Metropolitan Univ, Sch Sci & Environm, Div Chem & Environm Sci, Manchester M1 5GD, Lancs, England.
RP Pumera, M (reprint author), Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, SPMS CBC-04-07,21 Nanyang Link, Singapore 637371, Singapore.
EM pumera@ntu.edu.sg
RI Pumera, Martin/F-2724-2010;
OI Pumera, Martin/0000-0001-5846-2951; banks, craig/0000-0002-0756-9764
NR 0
TC 3
Z9 3
U1 2
U2 21
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1618-2642
EI 1618-2650
J9 ANAL BIOANAL CHEM
JI Anal. Bioanal. Chem.
PD NOV
PY 2014
VL 406
IS 27
BP 6883
EP 6884
DI 10.1007/s00216-014-8153-5
PG 2
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA AR8DG
UT WOS:000343805100013
PM 25240933
ER
PT J
AU Zhang, P
Goodwin, PM
Werner, JH
AF Zhang, P.
Goodwin, P. M.
Werner, J. H.
TI Interferometric three-dimensional single molecule localization
microscopy using a single high-numerical-aperture objective
SO APPLIED OPTICS
LA English
DT Article
ID OPTICAL RECONSTRUCTION MICROSCOPY; FLUORESCENCE MICROSCOPY;
DIFFRACTION-LIMIT; LIVE CELLS; RESOLUTION; TRACKING
AB Interferometric detection of the fluorescence emission from a single molecule [interferometric photoactivated localization microscopy (iPALM)] enables a localization accuracy of nanometers in axial localization for 3D superresolution imaging. However, iPALM uses two high-numerical-aperture (NA) objectives in juxtaposition for fluorescence collection (a 4Pi microscope geometry), increasing expense and limiting samples that can be studied. Here, we propose an interferometric single molecule localization microscopy method using a single high-NA objective. The axial position of single molecules can be unambiguously determined from the phase-shifted interference signals with nanometer precision and over a range of 2 lambda. The use of only one objective simplifies the system configuration and sample mounting. In addition, due to the use of wavefront-splitting interference in our approach, the two parts of the wave-front that eventually merge and interfere with each other travel along nearly equivalent optical paths, which should minimize the effect of drift for long-term 3D superresolution imaging. (C) 2014 Optical Society of America
C1 [Zhang, P.; Goodwin, P. M.; Werner, J. H.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
RP Werner, JH (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, POB 1663, Los Alamos, NM 87545 USA.
EM jwerner@lanl.gov
FU Los Alamos National Laboratory Directed Research and Development (LDRD)
program; U.S. Department of Energy, Office of Basic Energy Sciences user
facility at Los Alamos National Laboratory [DE-AC52-06NA25396]
FX This work was supported through Los Alamos National Laboratory Directed
Research and Development (LDRD) program and was performed at the Center
for Integrated Nanotechnologies, a U.S. Department of Energy, Office of
Basic Energy Sciences user facility at Los Alamos National Laboratory
(Contract DE-AC52-06NA25396).
NR 23
TC 0
Z9 0
U1 1
U2 17
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1559-128X
EI 2155-3165
J9 APPL OPTICS
JI Appl. Optics
PD NOV 1
PY 2014
VL 53
IS 31
BP 7415
EP 7421
DI 10.1364/AO.53.007415
PG 7
WC Optics
SC Optics
GA AR9TL
UT WOS:000343919400045
PM 25402907
ER
PT J
AU Rakhman, A
Wang, Y
Garcia, F
Long, C
Huang, CN
Takeda, Y
Liu, Y
AF Rakhman, Abdurahim
Wang, Yang
Garcia, Frances
Long, Cary
Huang, Chunning
Takeda, Yasuhiro
Liu, Yun
TI Multifunctional optical correlator for picosecond ultraviolet laser
pulse measurement
SO APPLIED OPTICS
LA English
DT Article
ID 2-PHOTON ABSORPTION; ULTRASHORT PULSES; PHASE; UV
AB A compact multifunctional optical correlator system for pulse width measurement of ultrashort ultraviolet (UV) pulses has been designed and experimentally demonstrated. Both autocorrelation and crosscorrelation functions are measured using a single nonlinear crystal, and the switching between two measurements requires no adjustment of phase matching and detector. The system can measure UV pulse widths from sub-picoseconds to 100 ps, and it involves no auxiliary pulse in the measurement. The measurement results on a burst-mode picosecond UV laser show a high-quality performance on speed, accuracy, resolution, and dynamic range. The proposed correlator can be applied to measure any ultrashort UV pulses produced through sum-frequency generation or second-harmonic generation. (C) 2014 Optical Society of America
C1 [Rakhman, Abdurahim; Garcia, Frances] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Rakhman, Abdurahim; Long, Cary; Huang, Chunning; Takeda, Yasuhiro; Liu, Yun] Oak Ridge Natl Lab, Spallat Neutron Source, Res Accelerator Div, Oak Ridge, TN 37831 USA.
[Wang, Yang] Univ Alabama, Dept Mech & Aerosp Engn, Huntsville, AL 35899 USA.
RP Liu, Y (reprint author), Oak Ridge Natl Lab, Spallat Neutron Source, Res Accelerator Div, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM liuy2@ornl.gov
RI Rakhman, Adurahim/K-8146-2012
OI Rakhman, Adurahim/0000-0002-9880-6074
FU DOE Higher Education Research Experiences (HERE) program; U.S. DOE
[DE-FG02-13ER41967]; Oak Ridge National Laboratory for the U.S.
Department of Energy [DE-AC05-00OR22725]
FX We thank A. Aleksandrov and S. Cousineau for their support. Technical
help from J. Diamond, S. Murray III, and A. Webster is acknowledged. Y.
Wang acknowledges support from the DOE Higher Education Research
Experiences (HERE) program. This work has been partially supported by
U.S. DOE grant DE-FG02-13ER41967. Oak Ridge National Laboratory is
managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the
U.S. Department of Energy.
NR 16
TC 4
Z9 4
U1 0
U2 4
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1559-128X
EI 2155-3165
J9 APPL OPTICS
JI Appl. Optics
PD NOV 1
PY 2014
VL 53
IS 31
BP 7603
EP 7609
DI 10.1364/AO.53.007603
PG 7
WC Optics
SC Optics
GA AR9TL
UT WOS:000343919400066
PM 25402928
ER
PT J
AU Arnache, O
Campillo, G
Hoffmann, A
AF Arnache, O.
Campillo, G.
Hoffmann, A.
TI Study of critical exponents in doped La2/3Ca1/3Mn1-yFeyO3 (y=0, 0.03)
manganite films
SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
LA English
DT Article
ID FERROMAGNETIC PHASE-TRANSITION; CRITICAL-BEHAVIOR; LA0.67CA0.33MNO3
FILMS; MAGNETIC-PROPERTIES; THIN-FILMS; TEMPERATURE; DEPENDENCE;
SUBSTRATE; NICKEL; OXIDE
AB In this work, we investigated close to the Curie temperature T-C the critical exponents of the magnetization of doped manganite La(2/3)Ca(1/3)Mn(0.97)Fe(0.0)3O(3) (LCMFO) thin films, as well as undoped La2/3Ca1/3MnO3 (LCMO). Using a T-C distribution given by the intrinsic magnetic inhomogeneities in these ferromagnets enables the determination of beta and delta critical exponents [corresponding to M(T) and M(H) respectively], average Curie temperature < T-C >, and the T-C distribution width, Delta T-C. Additionally, we extracted the critical exponent eta = beta delta from the fits of Delta T-C as a function of the external applied magnetic field. We found a value of 1.74 +/- 0.09 for this exponent, close to that reported in undoped La2/3Ca1/3MnO3 thin films. Even though the substitution effects of the Mn ions by Fe affect the magnetotransport and structural properties of LCMO system, these results suggest that around T-C, the magnetic phase transition, governed by the critical exponents, is similar in both magnetic systems, and belongs to the same universality class.
C1 [Arnache, O.] Univ Antioquia, Fac Ciencias Exactas & Nat, Inst Fis, Grp Estado Solido, Medellin, Colombia.
[Campillo, G.] Univ Medellin, Dept Ciencias Basicas, Medellin 1983, Colombia.
[Hoffmann, A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Campillo, G (reprint author), Univ Medellin, Dept Ciencias Basicas, Carrera 87 30-65, Medellin 1983, Colombia.
EM gecampillo@udem.edu.co
RI Hoffmann, Axel/A-8152-2009
OI Hoffmann, Axel/0000-0002-1808-2767
FU Universidad de Antioquia-Colombia [231, SIU-24-1-434]; U.S. Department
of Energy, Office of Science, Materials Science and Engineering Division
FX This work was supported by the Universidad de Antioquia-Colombia, under
Act No. 231 CODI project-2012 (SIU-24-1-434). Work at Argonne was
supported by the U.S. Department of Energy, Office of Science, Materials
Science and Engineering Division.
NR 35
TC 2
Z9 2
U1 1
U2 15
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0947-8396
EI 1432-0630
J9 APPL PHYS A-MATER
JI Appl. Phys. A-Mater. Sci. Process.
PD NOV
PY 2014
VL 117
IS 2
BP 937
EP 943
DI 10.1007/s00339-014-8477-1
PG 7
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA AR5TX
UT WOS:000343647600077
ER
PT J
AU Singaravelu, S
Mayo, DC
Park, HK
Schriver, KE
Klopf, JM
Kelley, MJ
Haglund, RF
AF Singaravelu, S.
Mayo, D. C.
Park, H. K.
Schriver, K. E.
Klopf, J. M.
Kelley, M. J.
Haglund, R. F., Jr.
TI Fabrication and performance of polymer-nanocomposite anti-reflective
thin films deposited by RIR-MAPLE
SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
LA English
DT Article
ID HIGH REFRACTIVE-INDEX; PULSED-LASER EVAPORATION; POLY(METHYL
METHACRYLATE); TIO2
AB Design of polymer anti-reflective (AR) optical coatings for plastic substrates is challenging because polymers exhibit a relatively narrow range of refractive indices. Here, we report synthesis of a four-layer AR stack using hybrid polymer: nanoparticle materials deposited by resonant infrared matrix-assisted pulsed laser evaporation. An Er: YAG laser ablated frozen solutions of a high-index composite containing TiO2 nanoparticles and poly(methylmethacrylate) (PMMA), alternating with a layer of PMMA. The optimized AR coatings, with thicknesses calculated using commercial software, yielded a coating for polycarbonate with transmission over 97 %, scattering <3 %, and a reflection coefficient below 0.5 % across the visible range, with a much smaller number of layers than would be predicted by a standard thin film calculation. The TiO2 nanoparticles contribute more to the enhanced refractive index of the high-index layers than can be accounted for by an effective medium model of the nanocomposite.
C1 [Singaravelu, S.; Park, H. K.; Schriver, K. E.] AppliFlex LLC, Nashville, TN 37211 USA.
[Mayo, D. C.; Haglund, R. F., Jr.] Vanderbilt Univ, Interdisciplinary Mat Sci Program, Nashville, TN 37235 USA.
[Klopf, J. M.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
[Kelley, M. J.] Coll William & Mary, Dept Appl Sci, Williamsburg, VA 23187 USA.
[Haglund, R. F., Jr.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA.
RP Singaravelu, S (reprint author), AppliFlex LLC, 110 Space Pk South, Nashville, TN 37211 USA.
EM rajaodu@gmail.com; richard.haglund@vanderbilt.edu
FU Air Force Research Laboratory under STTR [FA9550-12-C-0006]; National
Science Foundation [IIP-0740683]; Office of Naval Research; Army Night
Vision Laboratory; Air Force Research Laboratory; Joint Technology
Office; Commonwealth of Virginia; U.S. Department of Energy
[DE-AC05-060R23177]
FX The authors thank Professor Costas Grigoropoulos for providing the ZnO
nanoparticle solution. This work was sponsored by the Air Force Research
Laboratory under STTR Award FA9550-12-C-0006. D. C. Mayo was supported
by the National Science Foundation (IIP-0740683). The Jefferson
NationLab FEL is supported by the Office of Naval Research, the Army
Night Vision Laboratory, the Air Force Research Laboratory, the Joint
Technology Office, the Commonwealth of Virginia, and the U.S. Department
of Energy, under contract No. DE-AC05-060R23177. We thank Professor
Richard Mu, Fisk University, for helpful discussions and access to
spectroscopy equipment.
NR 37
TC 2
Z9 2
U1 4
U2 22
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0947-8396
EI 1432-0630
J9 APPL PHYS A-MATER
JI Appl. Phys. A-Mater. Sci. Process.
PD NOV
PY 2014
VL 117
IS 3
BP 1415
EP 1423
DI 10.1007/s00339-014-8566-1
PG 9
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA AR9RC
UT WOS:000343911600058
ER
PT J
AU Johnson, TJ
Bernacki, BE
Redding, RL
Su, YF
Brauer, CS
Myers, TL
Stephan, EG
AF Johnson, Timothy J.
Bernacki, Bruce E.
Redding, Rebecca L.
Su, Yin-Fong
Brauer, Carolyn S.
Myers, Tanya L.
Stephan, Eric G.
TI Intensity-Value Corrections for Integrating Sphere Measurements of Solid
Samples Measured Behind Glass
SO APPLIED SPECTROSCOPY
LA English
DT Article
DE Visible near-infrared spectroscopy; Vis-NIR; Integrating sphere; Diffuse
reflectance; Calibration; Glass reflectance; Reflectance standards
ID DIFFUSE-REFLECTANCE; AVIRIS DATA; STANDARDS; SURFACES; VEGETATION;
LIBRARIES; SPECTRUM
AB Accurate and calibrated directional-hemispherical reflectance spectra of solids are important for both in situ and remote sensing. Many solids are in the form of powders or granules and to measure their diffuse reflectance spectra in the laboratory, it is often necessary to place the samples behind a transparent medium such as glass for the ultraviolet (UV), visible, or near-infrared spectral regions. Using both experimental methods and a simple optical model, we demonstrate that glass (fused quartz in our case) leads to artifacts in the reflectance values. We report our observations that the measured reflectance values, for both hemispherical and diffuse reflectance, are distorted by the additional reflections arising at the air-quartz and sample-quartz interfaces. The values are dependent on the sample reflectance and are offset in intensity in the hemispherical case, leading to measured values up to similar to 6% too high for a 2% reflectance surface, similar to 3.8% too high for 10% reflecting surfaces, approximately correct for 40-60% diffuse-reflecting surfaces, and similar to 1.5% too low for 99% reflecting Spectralon (R) surfaces. For the case of diffuse-only reflectance, the measured values are uniformly too low due to the polished glass, with differences of nearly 6% for a 99% reflecting matte surface. The deviations arise from the added reflections from the quartz surfaces, as verified by both theory and experiment, and depend on sphere design. Empirical correction factors were implemented into post-processing software to redress the artifact for hemispherical and diffuse reflectance data across the 300-2300 nm range.
C1 [Johnson, Timothy J.; Bernacki, Bruce E.; Redding, Rebecca L.; Su, Yin-Fong; Brauer, Carolyn S.; Myers, Tanya L.; Stephan, Eric G.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Johnson, TJ (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM timothy.johnson@pnnl.gov
OI Stephan, Eric/0000-0002-8155-6806
FU U.S. Department of Energy (DOE) Office of Nonproliferation and
Verification Research and Development [NA-22]; U.S. DOE
[DE-AC05-76RLO1830]
FX We thank R. James Ewing for the design of the custom sample holder and
Dr. Jim Steensrud of Agilent Technologies for fruitful discussions. We
thank Labsphere for the courtesy to reproduce the sphere diagram. The
research described in this article was supported in part by the U.S.
Department of Energy (DOE) Office of Nonproliferation and Verification
Research and Development (NA-22), as well as other sponsors. PNNL is
operated by Battelle for the U.S. DOE under Contract DE-AC05-76RLO1830.
We gratefully thank our sponsors for their support.
NR 48
TC 7
Z9 8
U1 0
U2 10
PU SOC APPLIED SPECTROSCOPY
PI FREDERICK
PA 5320 SPECTRUM DRIVE SUITE C, FREDERICK, MD 21703 USA
SN 0003-7028
EI 1943-3530
J9 APPL SPECTROSC
JI Appl. Spectrosc.
PD NOV
PY 2014
VL 68
IS 11
BP 1224
EP 1234
DI 10.1366/13-07322
PG 11
WC Instruments & Instrumentation; Spectroscopy
SC Instruments & Instrumentation; Spectroscopy
GA AR7YT
UT WOS:000343793600003
PM 25280186
ER
PT J
AU McGrane, SD
Moore, DS
Goodwin, PM
Dattelbaum, DM
AF McGrane, Shawn D.
Moore, David S.
Goodwin, Peter M.
Dattelbaum, Dana M.
TI Quantitative Tradeoffs Between Spatial, Temporal, and Thermometric
Resolution of Nonresonant Raman Thermometry for Dynamic Experiments
SO APPLIED SPECTROSCOPY
LA English
DT Article
DE Raman; Thermometry; Dynamic; Single shot; Stokes to anti-Stokes ratio
ID NANOSECOND TEMPERATURE-JUMP; VIBRATIONAL SPECTROSCOPY; SCATTERING;
STOKES; CALIBRATION; THRESHOLD; PYROMETRY; SILICON; QUARTZ; DAMAGE
AB The ratio of Stokes to anti-Stokes nonresonant spontaneous Raman can provide an in situ thermometer that is noncontact, independent of any material specific parameters or calibrations, can be multiplexed spatially with line imaging, and can be time resolved for dynamic measurements. However, spontaneous Raman cross sections are very small, and thermometric measurements are often limited by the amount of laser energy that can be applied without damaging the sample or changing its temperature appreciably. In this paper, we quantitatively detail the tradeoff space between spatial, temporal, and thermometric accuracy measurable with spontaneous Raman. Theoretical estimates are pinned to experimental measurements to form realistic expectations of the resolution tradeoffs appropriate to various experiments. We consider the effects of signal to noise, collection efficiency, laser heating, pulsed laser ablation, and blackbody emission as limiting factors, provide formulae to help choose optimal conditions and provide estimates relevant to planning experiments along with concrete examples for single-shot measurements.
C1 [McGrane, Shawn D.; Moore, David S.; Dattelbaum, Dana M.] Los Alamos Natl Lab, Shock & Detonat Phys Grp, Los Alamos, NM 87545 USA.
[Goodwin, Peter M.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
RP McGrane, SD (reprint author), Los Alamos Natl Lab, Shock & Detonat Phys Grp, MS P952, Los Alamos, NM 87545 USA.
EM mcgrane@lanl.gov
OI Mcgrane, Shawn/0000-0002-2978-3980
FU US DOE through the LANL LDRD program; Campaign 2 High Explosive Science
program
FX The authors gratefully acknowledge funding from the US DOE through the
LANL LDRD program and the Campaign 2 High Explosive Science program.
NR 43
TC 2
Z9 2
U1 5
U2 20
PU SOC APPLIED SPECTROSCOPY
PI FREDERICK
PA 5320 SPECTRUM DRIVE SUITE C, FREDERICK, MD 21703 USA
SN 0003-7028
EI 1943-3530
J9 APPL SPECTROSC
JI Appl. Spectrosc.
PD NOV
PY 2014
VL 68
IS 11
BP 1279
EP 1288
DI 10.1366/14-07503
PG 10
WC Instruments & Instrumentation; Spectroscopy
SC Instruments & Instrumentation; Spectroscopy
GA AR7YT
UT WOS:000343793600011
PM 25279842
ER
PT J
AU Gnedin, NY
Draine, BT
AF Gnedin, Nickolay Y.
Draine, Bruce T.
TI LINE OVERLAP AND SELF-SHIELDING OF MOLECULAR HYDROGEN IN GALAXIES
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE cosmology: theory; galaxies: evolution; galaxies: formation; methods:
numerical; stars: formation
ID REGULATED STAR-FORMATION; SMALL-MAGELLANIC-CLOUD; NEARBY DISK GALAXIES;
H I; STELLAR FEEDBACK; COLUMN DENSITIES; DWARF GALAXIES; GAS CONTENT;
KPC SCALES; SIMULATIONS
AB The effect of line overlap in the Lyman and Werner bands, often ignored in galactic studies of the atomic-to-molecular transition, greatly enhances molecular hydrogen self-shielding in low metallicity environments and dominates over dust shielding for metallicities below about 10% solar. We implement that effect in cosmological hydrodynamics simulations with an empirical model, calibrated against the observational data, and provide fitting formulae for the molecular hydrogen fraction as a function of gas density on various spatial scales and in environments with varied dust abundance and interstellar radiation field. We find that line overlap, while important for detailed radiative transfer in the Lyman and Werner bands, has only a minor effect on star formation on galactic scales, which, to a much larger degree, is regulated by stellar feedback.
C1 [Gnedin, Nickolay Y.] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA.
[Gnedin, Nickolay Y.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Gnedin, Nickolay Y.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
[Draine, Bruce T.] Princeton Univ Observ, Princeton, NJ 08544 USA.
RP Gnedin, NY (reprint author), Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, POB 500, Batavia, IL 60510 USA.
EM gnedin@fnal.gov; draine@astro.princeton.edu
FU United States Department of Energy [DE-AC02-07CH11359]; NSF
[AST-1211190, AST-1008570]
FX Fermilab is operated by the Fermi Research Alliance, LLC, under contract
No. DE-AC02-07CH11359 with the United States Department of Energy.
N.Y.G.'s work was also supported in part by the NSF grant AST-1211190.
B.T.D. was supported in part by NSF grant AST-1008570.
NR 50
TC 11
Z9 11
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD NOV 1
PY 2014
VL 795
IS 1
AR 37
DI 10.1088/0004-637X/795/1/37
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AR8YN
UT WOS:000343857300037
ER
PT J
AU Pei, LY
Barth, AJ
Aldering, GS
Briley, MM
Carroll, CJ
Carson, DJ
Cenko, SB
Clubb, KI
Cohen, DP
Cucchiara, A
Desjardins, TD
Edelson, R
Fang, JJ
Fedrow, JM
Filippenko, AV
Fox, OD
Furniss, A
Gates, EL
Gregg, M
Gustafson, S
Horst, JC
Joner, MD
Kelly, PL
Lacy, M
Laney, CD
Leonard, DC
Li, WD
Malkan, MA
Margon, B
Neeleman, M
Nguyen, ML
Prochaska, JX
Ross, NR
Sand, DJ
Searcy, KJ
Shivvers, IS
Silverman, JM
Smith, GH
Suzuki, N
Smith, KL
Tytler, D
Werk, JK
Worseck, G
AF Pei, Liuyi
Barth, Aaron J.
Aldering, Greg S.
Briley, Michael M.
Carroll, Carla J.
Carson, Daniel J.
Cenko, S. Bradley
Clubb, Kelsey I.
Cohen, Daniel P.
Cucchiara, Antonino
Desjardins, Tyler D.
Edelson, Rick
Fang, Jerome J.
Fedrow, Joseph M.
Filippenko, Alexei V.
Fox, Ori D.
Furniss, Amy
Gates, Elinor L.
Gregg, Michael
Gustafson, Scott
Horst, J. Chuck
Joner, Michael D.
Kelly, Patrick L.
Lacy, Mark
Laney, C. David
Leonard, Douglas C.
Li, Weidong
Malkan, Matthew A.
Margon, Bruce
Neeleman, Marcel
Nguyen, My L.
Prochaska, J. Xavier
Ross, Nathaniel R.
Sand, David J.
Searcy, Kinchen J.
Shivvers, Isaac S.
Silverman, Jeffrey M.
Smith, Graeme H.
Suzuki, Nao
Smith, Krista Lynne
Tytler, David
Werk, Jessica K.
Worseck, Gabor
TI REVERBERATION MAPPING OF THE KEPLER FIELD AGN KA1858+4850
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: active; galaxies: individual (1RXSJ185800.9+485020); galaxies:
nuclei
ID ACTIVE GALACTIC NUCLEI; BROAD-LINE REGION; BLACK-HOLE MASS; RAPID
OPTICAL VARIABILITY; MONITORING PROJECT; LUMINOSITY RELATIONSHIP;
RECOMBINATION LINES; QUASARS; GALAXIES; CALIBRATION
AB KA1858+4850 is a narrow-line Seyfert 1 galaxy at redshift 0.078 and is among the brightest active galaxies monitored by the Kepler mission. We have carried out a reverberation mapping campaign designed to measure the broad-line region size and estimate the mass of the black hole in this galaxy. We obtained 74 epochs of spectroscopic data using the Kast Spectrograph at the Lick 3 m telescope from 2012 February to November, and obtained complementary V-band images from five other ground-based telescopes. We measured the H beta light curve lag with respect to the V-band continuum light curve using both cross-correlation techniques (CCF) and continuum light curve variability modeling with the JAVELIN method and found rest-frame lags of tau(CCF) = 13.53(+2.03)(-2.32) days and tau(JAVELIN) = 13.15(+1.08)(-1.00) days. The H beta rms line profile has a width of sigma line = 770 +/- 49 km s(-1). Combining these two results and assuming a virial scale factor of f = 5.13, we obtained a virial estimate of M-BH = 8.06(+1.59)(-1.72) x 10(6) M circle dot for the mass of the central black hole and an Eddington ratio of L/L-Edd approximate to 0.2. We also obtained consistent but slightly shorter emission-line lags with respect to the Kepler light curve. Thanks to the Kepler mission, the light curve of KA1858+4850 has among the highest cadences and signal-to-noise ratios ever measured for an active galactic nucleus; thus, our black hole mass measurement will serve as a reference point for relations between black hole mass and continuum variability characteristics in active galactic nuclei.
C1 [Pei, Liuyi; Barth, Aaron J.; Carson, Daniel J.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
[Aldering, Greg S.; Cucchiara, Antonino] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Briley, Michael M.] Appalachian State Univ, Dept Phys & Astron, Boone, NC 28608 USA.
[Carroll, Carla J.; Joner, Michael D.; Laney, C. David] Brigham Young Univ, Dept Phys & Astron, Provo, UT 84602 USA.
[Cenko, S. Bradley; Edelson, Rick; Smith, Krista Lynne] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Cenko, S. Bradley] NASA, Astrophys Sci Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Cenko, S. Bradley] Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA.
[Clubb, Kelsey I.; Cohen, Daniel P.; Cucchiara, Antonino; Filippenko, Alexei V.; Fox, Ori D.; Kelly, Patrick L.; Li, Weidong; Shivvers, Isaac S.] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA.
[Desjardins, Tyler D.] Univ Western Ontario, Dept Phys & Astron, London, ON N6A 3K7, Canada.
[Fang, Jerome J.; Margon, Bruce; Prochaska, J. Xavier; Werk, Jessica K.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Fedrow, Joseph M.; Horst, J. Chuck; Leonard, Douglas C.] San Diego State Univ, Dept Astron, San Diego, CA 92182 USA.
[Fedrow, Joseph M.] Univ Calif San Diego, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA.
[Furniss, Amy] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Gates, Elinor L.] Univ Calif Santa Cruz, Lick Observ, Mt Hamilton, CA 95140 USA.
[Gregg, Michael] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
[Gustafson, Scott; Neeleman, Marcel; Tytler, David] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA.
[Lacy, Mark] Natl Radio Astron Observ, Charlottesville, VA 22903 USA.
[Malkan, Matthew A.; Ross, Nathaniel R.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Nguyen, My L.] Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA.
[Prochaska, J. Xavier; Smith, Graeme H.; Werk, Jessica K.; Worseck, Gabor] Univ Calif Santa Cruz, Dept Astron & Astrophys, UCO Lick Observ, Santa Cruz, CA 95064 USA.
[Sand, David J.] Las Cumbres Observ Global Telescope Network, Goleta, CA 93117 USA.
[Sand, David J.] Texas Tech Univ, Dept Phys, Lubbock, TX 79409 USA.
[Searcy, Kinchen J.] San Diego Astron Assoc, San Diego, CA 92193 USA.
[Silverman, Jeffrey M.] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA.
[Suzuki, Nao] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
RP Pei, LY (reprint author), Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
OI Worseck, Gabor/0000-0003-0960-3580; Shivvers, Isaac/0000-0003-3373-8047;
Barth, Aaron/0000-0002-3026-0562
FU NSF [AST-1108835, AST-1107812, AST-1108665, AST-1211916, AST-1302771,
AST-1009571, AST-1210311, AST-0618209]; TABASGO Foundation; Christopher
R. Redlich Fund; NASA [NAS5-26555]; NASA Office of Space Science
[NNX13AC07G]; NASA Science Mission directorate
FX Research by L. P. and A.J.B. at UC Irvine has been supported by NSF
grant AST-1108835. Research by M. A. M. at UCLA was supported by NSF
grant AST-1107812. A.V.F.'s group at UC Berkeley was supported through
NSF grants AST-1108665 and AST-1211916, the TABASGO Foundation, and the
Christopher R. Redlich Fund. KAIT and its ongoing operation were made
possible by donations from Sun Microsystems, Inc., the Hewlett-Packard
Company, AutoScope Corporation, Lick Observatory, the NSF, the
University of California, the Sylvia & Jim Katzman Foundation, and the
TABASGO Foundation. We are very grateful to our late colleague Weidong
Li, who was instrumental in making KAIT successful and taught us much
about photometry.; J.M.S. is supported by an NSF Astronomy and
Astrophysics Postdoctoral Fellowship under award AST-1302771. Research
by D.C.L., J.C.H., and J.M.F. at San Diego State University is supported
by NSF grants AST-1009571 and AST-1210311. The WMO 0.9 m telescope was
funded by NSF grant AST-0618209.; This work makes use of observations
from the LCOGT network. Some of the data presented in this paper were
obtained from the Mikulski Archive for Space Telescopes (MAST). STScI is
operated by the Association of Universities for Research in Astronomy,
Inc., under NASA contract NAS5-26555. Support for MAST for non-HST data
is provided by the NASA Office of Space Science via grant NNX13AC07G and
by other grants and contracts. This paper includes data collected by the
Kepler mission. Funding for the Kepler mission is provided by the NASA
Science Mission directorate.
NR 58
TC 9
Z9 9
U1 1
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD NOV 1
PY 2014
VL 795
IS 1
AR 38
DI 10.1088/0004-637X/795/1/38
PG 15
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AR8YN
UT WOS:000343857300038
ER
PT J
AU Takami, M
Hasegawa, Y
Muto, T
Gu, PG
Dong, RB
Karr, JL
Hashimoto, J
Kusakabe, N
Chapillon, E
Tang, YW
Itoh, Y
Carson, J
Follette, KB
Mayama, S
Sitko, M
Janson, M
Grady, CA
Kudo, T
Akiyama, E
Kwon, J
Takahashi, Y
Suenaga, T
Abe, L
Brandner, W
Brandt, TD
Currie, T
Egner, SE
Feldt, M
Guyon, O
Hayano, Y
Hayashi, M
Hayashi, S
Henning, T
Hodapp, KW
Honda, M
Ishii, M
Iye, M
Kandori, R
Knapp, GR
Kuzuhara, M
McElwain, MW
Matsuo, T
Miyama, S
Morino, JI
Moro-Martin, A
Nishimura, T
Pyo, TS
Serabyn, E
Suto, H
Suzuki, R
Takato, N
Terada, H
Thalmann, C
Tomono, D
Turner, EL
Wisniewski, JP
Watanabe, M
Yamada, T
Takami, H
Usuda, T
Tamura, M
AF Takami, Michihiro
Hasegawa, Yasuhiro
Muto, Takayuki
Gu, Pin-Gao
Dong, Ruobing
Karr, Jennifer L.
Hashimoto, Jun
Kusakabe, Nobuyuki
Chapillon, Edwige
Tang, Ya-Wen
Itoh, Youchi
Carson, Joseph
Follette, Katherine B.
Mayama, Satoshi
Sitko, Michael
Janson, Markus
Grady, Carol A.
Kudo, Tomoyuki
Akiyama, Eiji
Kwon, Jungmi
Takahashi, Yasuhiro
Suenaga, Takuya
Abe, Lyu
Brandner, Wolfgang
Brandt, Timothy D.
Currie, Thayne
Egner, Sebastian E.
Feldt, Markus
Guyon, Olivier
Hayano, Yutaka
Hayashi, Masahiko
Hayashi, Saeko
Henning, Thomas
Hodapp, Klaus W.
Honda, Mitsuhiko
Ishii, Miki
Iye, Masanori
Kandori, Ryo
Knapp, Gillian R.
Kuzuhara, Masayuki
McElwain, Michael W.
Matsuo, Taro
Miyama, Shoken
Morino, Jun-Ichi
Moro-Martin, Amaya
Nishimura, Tetsuo
Pyo, Tae-Soo
Serabyn, Eugene
Suto, Hiroshi
Suzuki, Ryuji
Takato, Naruhisa
Terada, Hiroshi
Thalmann, Christian
Tomono, Daigo
Turner, Edwin L.
Wisniewski, John P.
Watanabe, Makoto
Yamada, Toru
Takami, Hideki
Usuda, Tomonori
Tamura, Motohide
TI SURFACE GEOMETRY OF PROTOPLANETARY DISKS INFERRED FROM NEAR-INFRARED
IMAGING POLARIMETRY
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE polarization; protoplanetary disks; stars: individual (SAO 206462, MWC
758, 2MASS J16042165-2130284, PDS 70, MWC 480); stars: pre-main sequence
ID SPECTRAL ENERGY-DISTRIBUTIONS; YOUNG STELLAR OBJECTS; T-TAURI STARS;
POLARIZED SCATTERED-LIGHT; CIRCUMSTELLAR DISK; TRANSITIONAL DISK;
HIGH-RESOLUTION; UPPER SCORPIUS; PDS 70; PROTOSTELLAR ENVELOPES
AB We present a new method of analysis for determining the surface geometry of five protoplanetary disks observed with near-infrared imaging polarimetry using Subaru-HiCIAO. Using as inputs the observed distribution of polarized intensity (PI), disk inclination, assumed properties for dust scattering, and other reasonable approximations, we calculate a differential equation to derive the surface geometry. This equation is numerically integrated along the distance from the star at a given position angle. We show that, using these approximations, the local maxima in the PI distribution of spiral arms (SAO 206462, MWC 758) and rings (2MASS J16042165-2130284, PDS 70) are associated with local concave-up structures on the disk surface. We also show that the observed presence of an inner gap in scattered light still allows the possibility of a disk surface that is parallel to the light path from the star, or a disk that is shadowed by structures in the inner radii. Our analysis for rings does not show the presence of a vertical inner wall as often assumed in studies of disks with an inner gap. Finally, we summarize the implications of spiral and ring structures as potential signatures of ongoing planet formation.
C1 [Takami, Michihiro; Hasegawa, Yasuhiro; Gu, Pin-Gao; Karr, Jennifer L.; Chapillon, Edwige; Tang, Ya-Wen] Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan.
[Muto, Takayuki] Kogakuin Univ, Div Liberal Arts, Shinjuku Ku, Tokyo 1638677, Japan.
[Dong, Ruobing] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Dong, Ruobing] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA.
[Hashimoto, Jun; Wisniewski, John P.] Univ Oklahoma, HL Dodge Dept Phys & Astron, Norman, OK 73019 USA.
[Kusakabe, Nobuyuki; Akiyama, Eiji; Kwon, Jungmi; Takahashi, Yasuhiro; Hayashi, Masahiko; Ishii, Miki; Iye, Masanori; Kandori, Ryo; Kuzuhara, Masayuki; Miyama, Shoken; Morino, Jun-Ichi; Suto, Hiroshi; Suzuki, Ryuji; Takami, Hideki; Usuda, Tomonori; Tamura, Motohide] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan.
[Itoh, Youchi] Univ Hyogo, Nishi Harima Astron Observ, Ctr Astron, Sayo, Hyogo 6795313, Japan.
[Carson, Joseph] Coll Charleston, Dept Phys & Astron, Charleston, SC 29424 USA.
[Follette, Katherine B.] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA.
[Mayama, Satoshi] Grad Univ Adv Studies SOKENDAI, Ctr Promot Integrated Sci, Hayama, Kanagawa 2400193, Japan.
[Sitko, Michael] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA.
[Janson, Markus] Queens Univ Belfast, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland.
[Grady, Carol A.] Eureka Sci, Oakland, CA 96402 USA.
[Grady, Carol A.; McElwain, Michael W.] NASA, Goddard Space Flight Ctr, ExoPlanets & Stellar Astrophys Lab, Greenbelt, MD 20771 USA.
[Kudo, Tomoyuki; Egner, Sebastian E.; Guyon, Olivier; Hayano, Yutaka; Hayashi, Saeko; Nishimura, Tetsuo; Pyo, Tae-Soo; Takato, Naruhisa; Terada, Hiroshi; Tomono, Daigo] Subaru Telescope, Hilo, HI 96720 USA.
[Takahashi, Yasuhiro; Tamura, Motohide] Univ Tokyo, Dept Astron, Bunkyo Ku, Tokyo 1130033, Japan.
[Suenaga, Takuya; Tamura, Motohide] Grad Univ Adv Studies SOKENDAI, Dept Astron Sci, Mitaka, Tokyo 1818588, Japan.
[Abe, Lyu] Univ Nice Sophia Antipolis, CNRS, Observ Cote Azur, Lab Lagrange,UMR 7293, F-06108 Nice 2, France.
[Brandner, Wolfgang; Feldt, Markus; Henning, Thomas] Max Planck Inst Astron, D-69117 Heidelberg, Germany.
[Brandt, Timothy D.; Knapp, Gillian R.; Turner, Edwin L.] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA.
[Currie, Thayne] Univ Toronto, Dept Astron & Astrophys, Toronto, ON, Canada.
[Hodapp, Klaus W.] Univ Hawaii, Inst Astron, Hilo, HI 96720 USA.
[Honda, Mitsuhiko] Kanagawa Univ, Fac Sci, Dept Math & Phys, Hiratsuka, Kanagawa 2591293, Japan.
[Kuzuhara, Masayuki] Univ Tokyo, Dept Earth & Planetary Sci, Bunkyo Ku, Tokyo 1130033, Japan.
[Kuzuhara, Masayuki] Tokyo Inst Technol, Dept Earth & Planetary Sci, Meguro Ku, Tokyo 1528551, Japan.
[Matsuo, Taro] Kyoto Univ, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan.
[Moro-Martin, Amaya] CAB CSIC INTA, Dept Astrophys, E-28850 Madrid, Spain.
[Serabyn, Eugene] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Thalmann, Christian] ETH, Inst Astron, CH-8093 Zurich, Switzerland.
[Turner, Edwin L.] Univ Tokyo, Kavli Inst Phys & Math Universe, Kashiwa, Chiba 2778568, Japan.
[Watanabe, Makoto] Hokkaido Univ, Dept Cosmosci, Kita Ku, Sapporo, Hokkaido 0600810, Japan.
[Yamada, Toru] Tohoku Univ, Astron Inst, Aoba Ku, Sendai, Miyagi 9808578, Japan.
RP Takami, M (reprint author), Acad Sinica, Inst Astron & Astrophys, POB 23-141, Taipei 10617, Taiwan.
EM hiro@asiaa.sinica.edu.tw
RI MIYAMA, Shoken/A-3598-2015; Watanabe, Makoto/E-3667-2016
OI Watanabe, Makoto/0000-0002-3656-4081
FU Ministry of Science and Technology (MoST) of Taiwan
[100-2112-M-001-007-MY3, 103-2112-M-001-029]; EACOA by East Asia Core
Observatories Association; National Astronomical Observatory of Japan;
National Astronomical Observatory of China; Korea Astronomy and Space
Science Institute; JSPS KAKENHI [26800106, 23103004, 26400224]; NASA
through Hubble Fellowship by Space Telescope Science Institute
[HST-HF-51320.01-A]; NASA [NAS 5-26555]; JSPS [PD: 24.110]; NSF-AST
[1009203, 1009314]; NSF [AST 1008440]
FX We are grateful for anonymous referees who provided thorough reviews and
valuable comments. We thank the Subaru Telescope staff for their
support, especially from Michael Lemmen for making our observations
successful. We thank Dr. Hyosun Kim for useful discussion. M. T. is
supported by the Ministry of Science and Technology (MoST) of Taiwan
(Grant Nos. 100-2112-M-001-007-MY3 and 103-2112-M-001-029). Y.H. is
supported by the EACOA Fellowship that is supported by the East Asia
Core Observatories Association which consists of the Academia Sinica
Institute of Astronomy and Astrophysics, the National Astronomical
Observatory of Japan, the National Astronomical Observatory of China,
and the Korea Astronomy and Space Science Institute. T. M. is supported
by JSPS KAKENHI grant Nos. 26800106, 23103004, 26400224. R. D.
acknowledges the support for this work by NASA through Hubble Fellowship
grant HST-HF-51320.01-A awarded by the Space Telescope Science
Institute, which is operated by the Association of Universities for
Research in Astronomy, Inc., for NASA, under contract NAS 5-26555.
Jungmi Kwon is supported by the JSPS Research Fellowships for Young
Scientists (PD: 24.110). J.C. was supported by NSF-AST 1009203. C. A. G.
acknowledges support under NSF AST 1008440. J.P.W. is supported by
NSF-AST 1009314. This research made use of the Simbad data base operated
at CDS, Strasbourg, France, and the NASA's Astrophysics Data System
Abstract Service.
NR 77
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U1 1
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PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD NOV 1
PY 2014
VL 795
IS 1
AR 71
DI 10.1088/0004-637X/795/1/71
PG 21
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AR8YN
UT WOS:000343857300071
ER
PT J
AU Chen, H
Lei, Z
Zang, MY
AF Chen, Hu
Lei, Zhou
Zang, Mengyan
TI LC-Grid: a linear global contact search algorithm for finite element
analysis
SO COMPUTATIONAL MECHANICS
LA English
DT Article
DE Contact; Global search algorithm; Space decomposition; Finite element
analysis
ID SHOT PEENING PROCESSES; IMPACT PROBLEMS; CONSERVING ALGORITHMS;
INTERACTION LAWS; SURFACE-CONTACT; SIMULATION; FRICTION; FORMULATION
AB The contact searching is computationally intensive and its memory requirement is highly demanding; therefore, it is significant to develop an efficient contact search algorithm with less memory required. In this paper, we propose an efficient global contact search algorithm with linear complexity in terms of computational cost and memory requirement for the finite element analysis of contact problems. This algorithm is named LC-Grid (Lei devised the algorithm and Chen implemented it). The contact space is decomposed; thereafter, all contact nodes and segments are firstly mapped onto layers, then onto rows and lastly onto cells. In each mapping level, the linked-list technique is used for the efficient storing and retrieval of contact nodes and segments. The contact detection is performed in each non-empty cell along non-empty rows in each non-empty layer, and moves to the next non-empty layer once a layer is completed. The use of migration strategy makes the algorithm insensitive to mesh size. The properties of this algorithm are investigated and numerically verified to be linearly proportional to the number of contact segments. Besides, the ideal ranges of two significant scale factors of cell size and buffer zone which strongly affect computational efficiency are determined via an illustrative example.
C1 [Chen, Hu] Univ New S Wales, Sch Engn & Informat Technol, ADFA, Canberra, ACT 2600, Australia.
[Lei, Zhou] Los Alamos Natl Lab, Geophys Grp, Los Alamos, NM 87545 USA.
[Zang, Mengyan] S China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Guangdong, Peoples R China.
RP Zang, MY (reprint author), S China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Guangdong, Peoples R China.
EM hu.chen@student.adfa.edu.au; alei.hnu@gmail.com; myzang@scut.edu.cn
OI Chen, Hu/0000-0002-5645-9449; Lei, Zhou/0000-0002-4965-5556
FU International Cooperation Project of the Ministry of Science and
Technology of China [2008DFA51740]; National Natural Science Foundation
of China [10972079, 11172104]; China Scholarship Council; UNSW Canberra
FX This work was supported by the International Cooperation Project of the
Ministry of Science and Technology of China (No. 2008DFA51740), the
National Natural Science Foundation of China (No. 10972079 and
11172104). The valuable comments and suggestions from anonymous
reviewers are gratefully acknowledged. Also the first author would want
to express his gratitude to the China Scholarship Council and UNSW
Canberra for their financial support.
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PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0178-7675
EI 1432-0924
J9 COMPUT MECH
JI Comput. Mech.
PD NOV
PY 2014
VL 54
IS 5
BP 1285
EP 1301
DI 10.1007/s00466-014-1058-5
PG 17
WC Mathematics, Interdisciplinary Applications; Mechanics
SC Mathematics; Mechanics
GA AR9EJ
UT WOS:000343874700014
ER
PT J
AU Aktulga, HM
Yang, C
Ng, EG
Maris, P
Vary, JP
AF Aktulga, Hasan Metin
Yang, Chao
Ng, Esmond G.
Maris, Pieter
Vary, James P.
TI Improving the scalability of a symmetric iterative eigensolver for
multi-core platforms
SO CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE
LA English
DT Article
DE symmetric iterative eigensolvers; topology-aware mapping; hybrid MPI;
OpenMP parallelism
AB We describe an efficient and scalable symmetric iterative eigensolver developed for distributed memory multi-core platforms. We achieve over 80% parallel efficiency by major reductions in communication overheads for the sparse matrix-vector multiplication and basis orthogonalization tasks. We show that the scalability of the solver is significantly improved compared to an earlier version, after we carefully reorganize the computational tasks and map them to processing units in a way that exploits the network topology. We discuss the advantage of using a hybrid OpenMP/MPI programming model to implement such a solver. We also present strategies for hiding communication on a multi-core platform. We demonstrate the effectiveness of these techniques by reporting the performance improvements achieved when we apply our solver to large-scale eigenvalue problems arising in nuclear structure calculations. Because sparse matrix-vector multiplication and inner product computation constitute the main kernels in most iterative methods, our ideas are applicable in general to the solution of problems involving large-scale symmetric sparse matrices with irregular sparsity patterns. Copyright (c) 2013 John Wiley & Sons, Ltd.
C1 [Aktulga, Hasan Metin; Yang, Chao; Ng, Esmond G.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
[Maris, Pieter; Vary, James P.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
RP Aktulga, HM (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
EM hmaktulga@lbl.gov
FU Scientific Discovery through Advanced Computing Program in the Offices
of Advanced Scientific Computing Research and Nuclear Physics in the
Office of Science, US Department of Energy [DE-AC02-05CH11231,
DE-FG-02-87ER40371, DE-FC02-09ER41582, DE-SC0008485]; US NSF [0904782];
US DOE Office of Science
FX This work was supported in part by the Scientific Discovery through
Advanced Computing Program in the Offices of Advanced Scientific
Computing Research and Nuclear Physics in the Office of Science, US
Department of Energy under contract no. DE-AC02-05CH11231 at LBNL and
grants no. DE-FG-02-87ER40371, DE-FC02-09ER41582, and DE-SC0008485 at
the Iowa State University. It was also funded in part by the US NSF
grant no. 0904782 at the Iowa State University. Computational resources
were provided by NERSC, which is supported by the US DOE Office of
Science.
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U1 0
U2 5
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1532-0626
EI 1532-0634
J9 CONCURR COMP-PRACT E
JI Concurr. Comput.-Pract. Exp.
PD NOV
PY 2014
VL 26
IS 16
BP 2631
EP 2651
DI 10.1002/cpe.3129
PG 21
WC Computer Science, Software Engineering; Computer Science, Theory &
Methods
SC Computer Science
GA AR8GT
UT WOS:000343814500001
ER
PT J
AU Paul, TC
Morshed, AKMM
Fox, EB
Visser, AE
Bridges, NJ
Khan, JA
AF Paul, Titan C.
Morshed, A. K. M. M.
Fox, Elise B.
Visser, Ann E.
Bridges, Nicholas J.
Khan, Jamil A.
TI Thermal performance of ionic liquids for solar thermal applications
SO EXPERIMENTAL THERMAL AND FLUID SCIENCE
LA English
DT Article
DE Ionic liquid; Heat capacity; Thermal conductivity; Convective heat
transfer coefficient; Nusselt number; Reynolds number
ID HEAT-TRANSFER BEHAVIOR; SURFACE-TENSION; IMIDAZOLIUM; FLUIDS; STABILITY;
CORROSION; PRESSURE; SOLVENTS; DENSITY
AB Experimental investigations were carried out to evaluate thermophysical properties, i.e. density, viscosity, heat capacity, and thermal conductivity and high temperature forced convection behavior of N-butyl-N,N,N-trimetylammoniumbis(trifluormethylsulfonyl)imide ([N-4111][NTf2]) ionic liquid (IL) for its potential application in concentrated solar power (CSP). Results from the experiments will be useful in assessing the potential of using ILs for solar thermal collectors. Experimental results show that thethermal conductivity was slightly decrease with the increase of temperature; vary from 0.124 to 0.121 W/m K for a change in temperature of 283-343 K, strong temperature effect on the viscosity of IL was observed and maintain an exponential relationship with the temperature; heat capacity increases linearly with temperature measured from 298 to 618 K. Forced convection performance of the IL was studied in a circular tube under both in laminar and turbulent conditions. Although the heat transfer coefficient of the IL was found to be lower compared to the De-Ionized (DI) water, its thermal stability and other attractive properties may make it a viable candidate for solar collector use. Our experimental results also established that Shah's equation and Gnielinski's equation can predict forced convection performance of IL for both the laminar region and turbulent region respectively. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Paul, Titan C.; Morshed, A. K. M. M.; Khan, Jamil A.] Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA.
[Fox, Elise B.; Visser, Ann E.; Bridges, Nicholas J.] Savannah River Natl Lab, Aiken, SC USA.
RP Khan, JA (reprint author), Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA.
EM khan@cec.sc.edu
FU Department of Energy (DOE) Solar Energy Technology Program; U.S.
Department of Energy [DEAC09-08SR22470]
FX The financial support for this research is from Department of Energy
(DOE) Solar Energy Technology Program. Savannah River National
Laboratory is operated by Savannah River Nuclear Solutions. This
document was prepared in conjunction with work accomplished under
Contract No. DEAC09-08SR22470 with the U.S. Department of Energy.
NR 39
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PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0894-1777
EI 1879-2286
J9 EXP THERM FLUID SCI
JI Exp. Therm. Fluid Sci.
PD NOV
PY 2014
VL 59
BP 88
EP 95
DI 10.1016/j.expthermflusci.2014.08.002
PG 8
WC Thermodynamics; Engineering, Mechanical; Physics, Fluids & Plasmas
SC Thermodynamics; Engineering; Physics
GA AR8RZ
UT WOS:000343843400010
ER
PT J
AU Johnston, R
Bacon, D
Teodoro, LFA
Nichol, RC
Warren, MS
Cress, C
AF Johnston, R.
Bacon, D.
Teodoro, L. F. A.
Nichol, R. C.
Warren, M. S.
Cress, C.
TI Reconstructing the velocity field beyond the local universe
SO GENERAL RELATIVITY AND GRAVITATION
LA English
DT Article
DE Methods: data analysis, numerical, statistical; Galaxies: distances and
redshifts; Cosmology: large-scale structure of universe
ID LARGE-SCALE STRUCTURE; DIGITAL SKY SURVEY; EARLY-TYPE GALAXIES; PECULIAR
VELOCITY; TULLY-FISHER; FUNDAMENTAL PLANE; REDSHIFT DATA; WIENER
RECONSTRUCTION; ELLIPTIC GALAXIES; DENSITY
AB We present a maximum probability approach to reconstructing spatial maps of the peculiar velocity field at redshifts z similar to 0.1, where the velocities have been measured from distance indicators (DI) such as D-n - sigma relations or Tully-Fisher. With the large statistical uncertainties associated with DIs, our reconstruction method aims to recover the underlying true peculiar velocity field by reducing these errors with the use of two physically motivated filtering prior terms. The first constructs an estimate of the velocity field derived from the galaxy over-density delta(g) and the second makes use of the matter linear density power spectrum P-k. Using N-body simulations we find, with an SDSS-like sample (N-gal similar to 33 per deg(2)), an average correlation coefficient value of r = 0.55 +/- 0.02 between our reconstructed velocity field and that of the true velocity field from the simulation. However, with a suitably high number density of galaxies from the next generation surveys (e. g. N-gal similar or equal to 140 per deg(2)) we can achieve an average r = 0.70 +/- 0.02 out to moderate redshifts z similar to 0.1. This will prove useful for future tests of gravity, as these relatively deep maps are complementary to weak lensing maps at the same redshift. LA-UR 12-24505.
C1 [Johnston, R.] Univ Western Cape, Dept Phys, Cape Town, South Africa.
[Bacon, D.; Nichol, R. C.] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England.
[Teodoro, L. F. A.] NASA, BAER Inst, Space Sci & Astrobiol Div, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Warren, M. S.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Cress, C.] Ctr High Performance Comp, ZA-7700 Cape Town, South Africa.
RP Johnston, R (reprint author), Univ Western Cape, Dept Phys, Cape Town, South Africa.
EM rwi.johnston@gmail.com
FU SKA-South Africa; National Research Foundation (NRF); UK Science and
Technology Facilities Council [ST/H002774/1, ST/K0090X/1]; ICG, at the
University of Portsmouth
FX We would like to extend special thanks to Enzo Branchini and Adi Nusser
for stimulating discussions, their comments and reading several drafts
of this paper. We also would like to thank Martin Hendry, Mat Smith,
Andreas Faltenbacher, Roy Maartens, Daniele Bertacca, Rafal
Szepietowski, Yong-Seon Song, Kazuya Koyama, Prina Patel, Emma Beynon,
Robert Crittenden and Philip Marshall for useful discussions. RJ
acknowledges the support of the SKA-South Africa and the National
Research Foundation (NRF), as well as the hospitality of the Institute
of Cosmology and Gravitation (ICG) at the University of Portsmouth where
some of this work was carried out. DB and RN are supported by the UK
Science and Technology Facilities Council (Grant Nos. ST/H002774/1 and
ST/K0090X/1). The analysis was performed with the SCIAMA High
Performance Computing cluster supported by the ICG, at the University of
Portsmouth. We would like to thank the SCIAMA cluster administrator,
Gary Burton, for all his help. Please contact the authors to request
access to research materials discussed in this paper.
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PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0001-7701
EI 1572-9532
J9 GEN RELAT GRAVIT
JI Gen. Relativ. Gravit.
PD NOV
PY 2014
VL 46
IS 11
AR 1812
DI 10.1007/s10714-014-1812-1
PG 18
WC Astronomy & Astrophysics; Physics, Multidisciplinary; Physics, Particles
& Fields
SC Astronomy & Astrophysics; Physics
GA AR9FT
UT WOS:000343879000005
ER
PT J
AU Pitrou, C
Stebbins, A
AF Pitrou, Cyril
Stebbins, Albert
TI Parameterization of temperature and spectral distortions in future CMB
experiments
SO GENERAL RELATIVITY AND GRAVITATION
LA English
DT Article
ID RADIATION; UNIVERSE
AB CMB spectral distortions are induced by Compton collisions with electrons. We review the various schemes to characterize the anisotropic CMB with a non-Planckian spectrum. We advocate using logarithmically averaged temperature moments as the preferred language to describe these spectral distortions, both for theoretical modeling and observations. Numerical modeling is simpler, the moments are frame-independent, and in terms of scattering the mode truncation is exact.
C1 [Pitrou, Cyril] Univ Paris 06, CNRS UMR, Inst Astrophys Paris, F-75014 Paris, France.
[Pitrou, Cyril] Univ Paris 04, Inst Lagrange Paris, F-75014 Paris, France.
[Stebbins, Albert] Fermilab Natl Accelerator Lab, Theoret Astrophys Grp, Batavia, IL 60510 USA.
RP Pitrou, C (reprint author), Univ Paris 06, CNRS UMR, Inst Astrophys Paris, 98 Bis Bd Arago, F-75014 Paris, France.
EM pitrou@iap.fr
FU French state funds [ANR-11-IDEX-0004-02]; DOE at Fermilab
[DE-AC02-07CH11359]
FX C.P. thanks J. Chluba, C. Fidler, Z. Huang, S. Renaux-Petel, G.
Pettinari, J.-P. Uzan, and F. Vernizzi for fruitful discussions. This
work was supported by French state funds managed by the ANR within the
Investissements d'Avenir programme under reference ANR-11-IDEX-0004-02.
AS was supported by the DOE at Fermilab under Contract No.
DE-AC02-07CH11359.
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PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0001-7701
EI 1572-9532
J9 GEN RELAT GRAVIT
JI Gen. Relativ. Gravit.
PD NOV
PY 2014
VL 46
IS 11
AR 1806
DI 10.1007/s10714-014-1806-z
PG 10
WC Astronomy & Astrophysics; Physics, Multidisciplinary; Physics, Particles
& Fields
SC Astronomy & Astrophysics; Physics
GA AR9FT
UT WOS:000343879000003
ER
PT J
AU Li, XW
Wang, Z
Mao, XL
Russo, RE
AF Li, Xiongwei
Wang, Zhe
Mao, Xianglei
Russo, Richard E.
TI Spatially and temporally resolved spectral emission of laser-induced
plasmas confined by cylindrical cavities
SO JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
LA English
DT Article
ID INDUCED BREAKDOWN SPECTROSCOPY; ABLATION; SIGNAL; IMPROVEMENT; GAS
AB Laser-induced plasmas generated on pure copper samples in air with and without the presence of cylindrical cavities were investigated using spatially and temporally resolved spectroscopic measurements. The cylindrical cavities with variable diameters (3, 4 and 5 mm) and variable heights (1, 2, and 3 mm) were fabricated in quartz glass and placed on the sample surface and around the focused laser beam. Compared with plasmas generated without the cavity, the spectral emission intensities of plasmas generated with cylindrical cavities were enhanced after several microseconds, and the enhanced emission regions moved to higher locations above the sample with time. Plasma spatial and temporal emission was influenced by cavity diameter. As the diameter increased from 3 to 5 mm, the spectral emission was enhanced later in time and the enhancement became weaker. Plasma spatial and temporal emission was not significantly influenced by cavity height if the cavity was higher than the vapor plume. Shock wave theory was utilized to explain the observed phenomena.
C1 [Li, Xiongwei; Wang, Zhe] Tsinghua Univ, Dept Thermal Engn, State Key Lab Power Syst, Tsinghua BP Clean Energy Ctr, Beijing 100084, Peoples R China.
[Mao, Xianglei; Russo, Richard E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Russo, RE (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM rerusso@lbl.gov
RI Wang, Zhe/E-1705-2011
OI Wang, Zhe/0000-0001-6857-7672
FU U.S. Department of Energy, Office of Basic Energy Sciences, Chemical
Science Division at Lawrence Berkeley National Laboratory
[2013CB228501]; National Natural Science Foundation of China [51276100];
National Basic Research Program [2013CB228501]
FX The research at LBNL was supported by the U.S. Department of Energy,
Office of Basic Energy Sciences, Chemical Science Division at Lawrence
Berkeley National Laboratory under contract number 2013CB228501.
Xiongwei Li and Zhe Wang also acknowledge the financial support from the
National Natural Science Foundation of China (Grant no. 51276100) and
National Basic Research Program (Grant no. 2013CB228501).
NR 29
TC 11
Z9 11
U1 3
U2 21
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.
PD NOV 1
PY 2014
VL 29
IS 11
BP 2127
EP 2135
DI 10.1039/c4ja00178h
PG 9
WC Chemistry, Analytical; Spectroscopy
SC Chemistry; Spectroscopy
GA AR7IJ
UT WOS:000343752600015
ER
PT J
AU Jacobs, JM
Rhodes, M
Brown, CW
Hood, RR
Leight, A
Long, W
Wood, R
AF Jacobs, J. M.
Rhodes, M.
Brown, C. W.
Hood, R. R.
Leight, A.
Long, W.
Wood, R.
TI Modeling and forecasting the distribution of Vibrio vulnificus in
Chesapeake Bay
SO JOURNAL OF APPLIED MICROBIOLOGY
LA English
DT Article
DE Chesapeake Bay; forecasting; modeling; pathogen; Vibrio
ID REAL-TIME PCR; NEUSE RIVER ESTUARY; OYSTERS CRASSOSTREA-VIRGINICA;
GULF-OF-MEXICO; UNITED-STATES; NORTH-CAROLINA; CHRYSAORA-QUINQUECIRRHA;
ENVIRONMENTAL-FACTORS; PROPIDIUM MONOAZIDE; INFECTIOUS-DISEASE
AB AimTo construct statistical models to predict the presence, abundance and potential virulence of Vibrio vulnificus in surface waters of Chesapeake Bay for implementation in ecological forecasting systems.
Methods and ResultsWe evaluated and applied previously published qPCR assays to water samples (n=1636) collected from Chesapeake Bay from 2007-2010 in conjunction with State water quality monitoring programmes. A variety of statistical techniques were used in concert to identify water quality parameters associated with V.vulnificus presence, abundance and virulence markers in the interest of developing strong predictive models for use in regional oceanographic modeling systems. A suite of models are provided to represent the best model fit and alternatives using environmental variables that allow them to be put to immediate use in current ecological forecasting efforts.
ConclusionsEnvironmental parameters such as temperature, salinity and turbidity are capable of accurately predicting abundance and distribution of V.vulnificus in Chesapeake Bay. Forcing these empirical models with output from ocean modeling systems allows for spatially explicit forecasts for up to 48h in the future.
Significance and Impact of the StudyThis study uses one of the largest data sets compiled to model Vibrio in an estuary, enhances our understanding of environmental correlates with abundance, distribution and presence of potentially virulent strains and offers a method to forecast these pathogens that may be replicated in other regions.
C1 [Jacobs, J. M.; Leight, A.; Wood, R.] NOAA, Natl Ctr Coastal Ocean Sci, Cooperat Oxford Lab, Oxford, MD 21654 USA.
[Rhodes, M.] JHT Inc, NOAA, Natl Ctr Coastal Ocean Sci, Cooperat Oxford Lab, Oxford, MD USA.
[Brown, C. W.] NOAA, Ctr Satellite Applicat & Res, College Pk, MD USA.
[Hood, R. R.; Long, W.] Univ Maryland, Ctr Environm Sci, Horn Point Lab, Cambridge, MD USA.
[Long, W.] Pacific NW Natl Lab, Marine Sci Lab, Sequim, WA USA.
RP Jacobs, JM (reprint author), NOAA, NOS Cooperat Oxford Lab, 904 South Morris St, Oxford, MD 21654 USA.
EM John.Jacobs@NOAA.gov
RI Brown, Christopher/B-8213-2008
OI Brown, Christopher/0000-0002-9905-6391
NR 84
TC 1
Z9 1
U1 3
U2 22
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1364-5072
EI 1365-2672
J9 J APPL MICROBIOL
JI J. Appl. Microbiol.
PD NOV
PY 2014
VL 117
IS 5
BP 1312
EP 1327
DI 10.1111/jam.12624
PG 16
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA AR9DB
UT WOS:000343870700010
PM 25139334
ER
PT J
AU Breen, MS
Schultz, BD
Sohn, MD
Long, T
Langstaff, J
Williams, R
Isaacs, K
Meng, QY
Stallings, C
Smith, L
AF Breen, Michael S.
Schultz, Bradley D.
Sohn, Michael D.
Long, Thomas
Langstaff, John
Williams, Ronald
Isaacs, Kristin
Meng, Qing Yu
Stallings, Casson
Smith, Luther
TI A review of air exchange rate models for air pollution exposure
assessments
SO JOURNAL OF EXPOSURE SCIENCE AND ENVIRONMENTAL EPIDEMIOLOGY
LA English
DT Review
DE Air exchange rate models; air pollution; exposure assessment; leakage;
natural ventilation; mechanical ventilation
ID PARTICULATE MATTER; UNITED-STATES; INFILTRATION; OUTDOOR; WIND;
TEMPERATURE; BUILDINGS; INDOOR; VENTILATION; POLLUTANTS
AB A critical aspect of air pollution exposure assessments is estimation of the air exchange rate (AER) for various buildings where people spend their time. The AER, which is the rate of exchange of indoor air with outdoor air, is an important determinant for entry of outdoor air pollutants and for removal of indoor-emitted air pollutants. This paper presents an overview and critical analysis of the scientific literature on empirical and physically based AER models for residential and commercial buildings; the models highlighted here are feasible for exposure assessments as extensive inputs are not required. Models are included for the three types of airflows that can occur across building envelopes: leakage, natural ventilation, and mechanical ventilation. Guidance is provided to select the preferable AER model based on available data, desired temporal resolution, types of airflows, and types of buildings included in the exposure assessment. For exposure assessments with some limited building leakage or AER measurements, strategies are described to reduce AER model uncertainty. This review will facilitate the selection of AER models in support of air pollution exposure assessments.
C1 [Breen, Michael S.; Schultz, Bradley D.; Williams, Ronald; Isaacs, Kristin] US EPA, Natl Exposure Res Lab, Human Exposure & Atmospher Sci Div, Off Res & Dev, Res Triangle Pk, NC 27711 USA.
[Sohn, Michael D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Energy Anal & Environm Impacts, Berkeley, CA 94720 USA.
[Long, Thomas] US EPA, Natl Ctr Environm Assessments, Res Triangle Pk, NC 27711 USA.
[Langstaff, John] US EPA, Off Air Qual & Planning Stand, Res Triangle Pk, NC 27711 USA.
[Meng, Qing Yu] UMDNJ Sch Publ Hlth, Dept Environm & Occupat Hlth, Piscataway, NJ USA.
[Stallings, Casson; Smith, Luther] Alion Sci & Technol Inc, Res Triangle Pk, NC USA.
RP Breen, MS (reprint author), US EPA, Natl Exposure Res Lab, Human Exposure & Atmospher Sci Div, Exposure Modeling Res Branch,Off Res & Dev, 109 TW Alexander Dr,Mail E205-02, Res Triangle Pk, NC 27711 USA.
EM breen.michael@epa.gov
FU U.S. Department of Energy [DE-AC02-05CH11231]
FX We thank Jennifer Richmond-Bryant and Vito Ilacqua for review comments
and helpful suggestions. Although the manuscript was reviewed by the US
Environmental Protection Agency and approved for publication, it may not
necessarily reflect official Agency policy. Mention of trade names or
commercial products does not constitute endorsement or recommendation
for use. Michael Sohn performed this work under Contract No.
DE-AC02-05CH11231 with the U.S. Department of Energy.
NR 61
TC 9
Z9 9
U1 3
U2 33
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 1559-0631
EI 1559-064X
J9 J EXPO SCI ENV EPID
JI J. Expo. Sci. Environ. Epidemiol.
PD NOV-DEC
PY 2014
VL 24
IS 6
BP 555
EP 563
DI 10.1038/jes.2013.30
PG 9
WC Environmental Sciences; Public, Environmental & Occupational Health;
Toxicology
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Toxicology
GA AS0IJ
UT WOS:000343960800002
PM 23715084
ER
PT J
AU Kohler, S
Schoeneberg, U
Czeschik, JC
Doelken, SC
Hehir-Kwa, JY
Ibn-Salem, J
Mungall, CJ
Smedley, D
Haendel, MA
Robinson, PN
AF Koehler, Sebastian
Schoeneberg, Uwe
Czeschik, Johanna Christina
Doelken, Sandra C.
Hehir-Kwa, Jayne Y.
Ibn-Salem, Jonas
Mungall, Christopher J.
Smedley, Damian
Haendel, Melissa A.
Robinson, Peter N.
TI Clinical interpretation of CNVs with cross-species phenotype data
SO JOURNAL OF MEDICAL GENETICS
LA English
DT Article
ID COPY NUMBER; CONGENITAL-ANOMALIES; HUMAN GENOME; ZEBRAFISH; CYTOSCAPE;
STANDARDS; VARIANTS; DISEASE; ACCESS; HEALTH
AB Background Clinical evaluation of CNVs identified via techniques such as array comparative genome hybridisation (aCGH) involves the inspection of lists of known and unknown duplications and deletions with the goal of distinguishing pathogenic from benign CNVs. A key step in this process is the comparison of the individual's phenotypic abnormalities with those associated with Mendelian disorders of the genes affected by the CNV. However, because often there is not much known about these human genes, an additional source of data that could be used is model organism phenotype data. Currently, almost 6000 genes in mouse and zebrafish are, when knocked out, associated with a phenotype in the model organism, but no disease is known to be caused by mutations in the human ortholog. Yet, searching model organism databases and comparing model organism phenotypes with patient phenotypes for identifying novel disease genes and medical evaluation of CNVs is hindered by the difficulty in integrating phenotype information across species and the lack of appropriate software tools.
Methods Here, we present an integrated ranking scheme based on phenotypic matching, degree of overlap with known benign or pathogenic CNVs and the haploinsufficiency score for the prioritisation of CNVs responsible for a patient's clinical findings.
Results We show that this scheme leads to significant improvements compared with rankings that do not exploit phenotypic information. We provide a software tool called PhenogramViz, which supports phenotype-driven interpretation of aCGH findings based on multiple data sources, including the integrated cross-species phenotype ontology Uberpheno, in order to visualise gene-to-phenotype relations.
Conclusions Integrating and visualising cross-species phenotype information on the affected genes may help in routine diagnostics of CNVs.
C1 [Koehler, Sebastian; Doelken, Sandra C.; Robinson, Peter N.] Charite, Inst Med Genet & Human Genet, D-13353 Berlin, Germany.
[Koehler, Sebastian; Robinson, Peter N.] Berlin Brandenburg Ctr Regenerat Therapies BCRT, Berlin, Germany.
[Schoeneberg, Uwe] Free Univ Berlin, Fdn Inst Mol Biol & Bioinformat, Berlin, Germany.
[Czeschik, Johanna Christina] Univ Duisburg Essen, Univ Klinikum Essen, Inst Humangenet, Essen, Germany.
[Hehir-Kwa, Jayne Y.] Radboud Univ Nijmegen, Med Ctr, Dept Human Genet, Nijmegen, Netherlands.
[Mungall, Christopher J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Smedley, Damian] Wellcome Trust Genome Campus, Wellcome Trust Sanger Inst, Hinxton, Cambs, England.
[Haendel, Melissa A.] Oregon Hlth & Sci Univ, Dept Med Informat & Epidemiol, Portland, OR 97201 USA.
[Haendel, Melissa A.] Oregon Hlth & Sci Univ, OHSU Lib, Portland, OR 97201 USA.
[Robinson, Peter N.] Max Planck Inst Mol Genet, D-14195 Berlin, Germany.
[Robinson, Peter N.] Free Univ Berlin, Inst Bioinformat, Dept Math & Comp Sci, Berlin, Germany.
RP Kohler, S (reprint author), Charite, Inst Med Genet & Human Genet, Augustenburger Pl 1, D-13353 Berlin, Germany.
EM sebastian.koehler@charite.de
RI Hehir, g. J.Y./L-4358-2015;
OI Ibn-Salem, Jonas/0000-0001-9886-113X; Kohler,
Sebastian/0000-0002-5316-1399
FU Bundesministerium fuer Bildung und Forschung (BMBF) [0313911]; European
Community [602300]; National Institutes of Health (NIH Office of the
Director Grant) [5R24OD011883]
FX The project was funded by grants of the Bundesministerium fuer Bildung
und Forschung (BMBF project number 0313911) and the European Community's
Seventh Framework Programme (Grant Agreement 602300; SYBIL). Further
support was provided by the National Institutes of Health (NIH Office of
the Director Grant #5R24OD011883).
NR 33
TC 7
Z9 7
U1 0
U2 5
PU BMJ PUBLISHING GROUP
PI LONDON
PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON WC1H 9JR, ENGLAND
SN 0022-2593
EI 1468-6244
J9 J MED GENET
JI J. Med. Genet.
PD NOV
PY 2014
VL 51
IS 11
BP 766
EP 772
DI 10.1136/jmedgenet-2014-102633
PG 7
WC Genetics & Heredity
SC Genetics & Heredity
GA AR9ET
UT WOS:000343875900007
PM 25280750
ER
PT J
AU Gardeux, V
Achour, I
Li, JR
Maienschein-Cline, M
Li, HQ
Pesce, L
Parinandi, G
Bahroos, N
Winn, R
Foster, I
Garcia, JGN
Lussier, YA
AF Gardeux, Vincent
Achour, Ikbel
Li, Jianrong
Maienschein-Cline, Mark
Li, Haiquan
Pesce, Lorenzo
Parinandi, Gurunadh
Bahroos, Neil
Winn, Robert
Foster, Ian
Garcia, Joe G. N.
Lussier, Yves A.
TI 'N-of-1-pathways' unveils personal deregulated mechanisms from a single
pair of RNA-Seq samples: towards precision medicine
SO JOURNAL OF THE AMERICAN MEDICAL INFORMATICS ASSOCIATION
LA English
DT Article
ID GENOME-WIDE ASSOCIATION; LUNG ADENOCARCINOMA; CLINICAL-TRIALS; CANCER;
CLASSIFICATION; DISEASE; BREAST; MICROARRAYS; EXPRESSION; PREDICTION
AB Background The emergence of precision medicine allowed the incorporation of individual molecular data into patient care. Indeed, DNA sequencing predicts somatic mutations in individual patients. However, these genetic features overlook dynamic epigenetic and phenotypic response to therapy. Meanwhile, accurate personal transcriptome interpretation remains an unmet challenge. Further, N-of-1 (single-subject) efficacy trials are increasingly pursued, but are underpowered for molecular marker discovery.
Method 'N-of-1-pathways' is a global framework relying on three principles: (i) the statistical universe is a single patient; (ii) significance is derived from geneset/biomodules powered by paired samples from the same patient; and (iii) similarity between genesets/biomodules assesses commonality and differences, within-study and cross-studies. Thus, patient gene-level profiles are transformed into deregulated pathways. From RNA-Seq of 55 lung adenocarcinoma patients, N-of-1-pathways predicts the deregulated pathways of each patient.
Results Cross-patient N-of-1-pathways obtains comparable results with conventional genesets enrichment analysis (GSEA) and differentially expressed gene (DEG) enrichment, validated in three external evaluations. Moreover, heatmap and star plots highlight both individual and shared mechanisms ranging from molecular to organ-systems levels (eg, DNA repair, signaling, immune response). Patients were ranked based on the similarity of their deregulated mechanisms to those of an independent gold standard, generating unsupervised clusters of diametric extreme survival phenotypes (p= 0.03).
Conclusions The N-of-1-pathways framework provides a robust statistical and relevant biological interpretation of individual disease-free survival that is often overlooked in conventional cross-patient studies. It enables mechanism-level classifiers with smaller cohorts as well as N-of-1 studies.
C1 [Gardeux, Vincent; Achour, Ikbel; Li, Jianrong; Li, Haiquan; Garcia, Joe G. N.; Lussier, Yves A.] Univ Arizona, Dept Med, Inst Bio5, UA Canc Ctr, Tucson, AZ 85721 USA.
[Gardeux, Vincent; Achour, Ikbel; Li, Jianrong; Li, Haiquan; Parinandi, Gurunadh; Winn, Robert; Lussier, Yves A.] Univ Illinois, Dept Med, Chicago, IL USA.
[Gardeux, Vincent] EISTI, Dept Med, Sch Engn, Cergy Pontoise, France.
[Gardeux, Vincent; Achour, Ikbel; Li, Jianrong; Maienschein-Cline, Mark; Li, Haiquan; Parinandi, Gurunadh; Bahroos, Neil; Lussier, Yves A.] Univ Illinois, Inst Translat Hlth Informat, Chicago, IL USA.
[Pesce, Lorenzo; Foster, Ian; Lussier, Yves A.] Argonne Natl Lab, Computat Inst, Chicago, IL USA.
[Pesce, Lorenzo; Foster, Ian] Univ Chicago, Chicago, IL 60637 USA.
[Winn, Robert; Lussier, Yves A.] Univ Chicago, Ctr Canc, Chicago, IL 60637 USA.
[Foster, Ian] Univ Chicago, Dept Comp Sci, Chicago, IL 60637 USA.
[Foster, Ian] Argonne Natl Lab, Math & Comp Sci Div, Chicago, IL USA.
[Lussier, Yves A.] Univ Illinois, Dept Bioengn, Chicago, IL USA.
[Lussier, Yves A.] Univ Illinois, Coll Pharm, Dept Biopharmaceut Sci, Chicago, IL USA.
[Lussier, Yves A.] Univ Chicago, Inst Genom & Syst Biol, Chicago, IL 60637 USA.
[Lussier, Yves A.] Univ Illinois, Dept Pharmacol, Chicago, IL USA.
RP Lussier, YA (reprint author), Univ Arizona, 1657 E Helen St,251 POB 210240, Tucson, AZ 85721 USA.
EM yves@email.arizona.edu
RI Gardeux, Vincent/O-9653-2016;
OI Gardeux, Vincent/0000-0001-8954-2161; Li, Haiquan/0000-0002-8049-0278;
Lussier, Yves/0000-0001-9854-1005
FU NIH [UL1TR000050, 1S10RR029030- 01, K22LM008308]; University of Illinois
Cancer Center
FX The study was supported in part by NIH grants UL1TR000050 (University of
Illinois CTSA), 1S10RR029030- 01 (BEAGLE Cray Supercomputer), and
K22LM008308, and the University of Illinois Cancer Center.
NR 38
TC 5
Z9 5
U1 0
U2 7
PU BMJ PUBLISHING GROUP
PI LONDON
PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON WC1H 9JR, ENGLAND
SN 1067-5027
EI 1527-974X
J9 J AM MED INFORM ASSN
JI J. Am. Med. Inf. Assoc.
PD NOV
PY 2014
VL 21
IS 6
BP 1015
EP 1025
DI 10.1136/amiajnl-2013-002519
PG 11
WC Computer Science, Information Systems; Computer Science,
Interdisciplinary Applications; Health Care Sciences & Services;
Information Science & Library Science; Medical Informatics
SC Computer Science; Health Care Sciences & Services; Information Science &
Library Science; Medical Informatics
GA AR7RJ
UT WOS:000343776700012
PM 25301808
ER
PT J
AU Garimella, SVB
Ibrahim, YM
Webb, IK
Tolmachev, AV
Zhang, XY
Prost, SA
Anderson, GA
Smith, RD
AF Garimella, Sandilya V. B.
Ibrahim, Yehia M.
Webb, Ian K.
Tolmachev, Aleksey V.
Zhang, Xinyu
Prost, Spencer A.
Anderson, Gordon A.
Smith, Richard D.
TI Simulation of Electric Potentials and Ion Motion in Planar Electrode
Structures for Lossless Ion Manipulations (SLIM)
SO JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
LA English
DT Article
DE Gas phase ions; Lossless manipulations; Ion trajectory simulations; Ion
mobility; Resolving power
ID DC COLLISIONAL ACTIVATION; MASS-SPECTROMETRY; MOBILITY SPECTROMETRY;
FUNNEL TRAP; ION/ION REACTIONS; RF-CARPET; INTERFACE; ION/MOLECULE;
INSTRUMENT; THROUGHPUT
AB We report a conceptual study and computational evaluation of novel planar electrode structures for lossless ion manipulations (SLIM). Planar electrode SLIM components were designed that allow for flexible ion confinement, transport, and storage using a combination of radio frequency (rf) and DC fields. Effective potentials can be generated that provide near ideal regions for confining and manipulating ions in the presence of a gas. Ion trajectory simulations using SIMION 8.1 demonstrated the capability for lossless ion motion in these devices over a wide m/z range and a range of electric fields at low pressures (e.g., a few Torr). More complex ion manipulations (e.g., turning ions by 90(o) and dynamically switching selected ion species into orthogonal channels) are also shown feasible. The performance of SLIM devices at similar to 4 Torr pressure for performing ion mobility-based separations (IMS) is computationally evaluated and compared with initial experimental results, and both are also shown to agree closely with experimental and theoretical IMS performance for a conventional drift tube design.
C1 [Garimella, Sandilya V. B.; Ibrahim, Yehia M.; Webb, Ian K.; Tolmachev, Aleksey V.; Zhang, Xinyu; Prost, Spencer A.; Anderson, Gordon A.; Smith, Richard D.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
RP Smith, RD (reprint author), Pacific NW Natl Lab, Div Biol Sci, POB 999, Richland, WA 99352 USA.
EM rds@pnnl.gov
RI Smith, Richard/J-3664-2012;
OI Smith, Richard/0000-0002-2381-2349; Garimella, Sandilya Venkata
Bhaskara/0000-0001-6649-9842
FU National Institutes of Health (NIH) NIGMS [P41GM103493, R21 GM103497];
Department of Energy Office of Biological and Environmental Research
Genome Sciences Program through the 'Pan-omics' project at the Pacific
Northwest National Laboratory (PNNL); Laboratory Directed Research and
Development program at the PNNL
FX Portions of this research were supported by the National Institutes of
Health (NIH) NIGMS grants P41GM103493 (R.D.S.), R21 GM103497 (Y.M.I.),
by the Department of Energy Office of Biological and Environmental
Research Genome Sciences Program through the 'Pan-omics' project at the
Pacific Northwest National Laboratory (PNNL), and the Laboratory
Directed Research and Development program at the PNNL. Work was
performed in the Environmental Molecular Sciences Laboratory (EMSL), a
DOE national scientific user facility at PNNL.
NR 38
TC 17
Z9 17
U1 1
U2 23
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1044-0305
EI 1879-1123
J9 J AM SOC MASS SPECTR
JI J. Am. Soc. Mass Spectrom.
PD NOV
PY 2014
VL 25
IS 11
BP 1890
EP 1896
DI 10.1007/s13361-014-0976-y
PG 7
WC Biochemical Research Methods; Chemistry, Analytical; Chemistry,
Physical; Spectroscopy
SC Biochemistry & Molecular Biology; Chemistry; Spectroscopy
GA AR9NO
UT WOS:000343902100008
PM 25257188
ER
PT J
AU Shvartsburg, AA
Ibrahim, YM
Smith, RD
AF Shvartsburg, Alexandre A.
Ibrahim, Yehia M.
Smith, Richard D.
TI Differential Ion Mobility Separations in up to 100% Helium Using
Microchips (vol 25, pg 480, 2014)
SO JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
LA English
DT Correction
C1 [Shvartsburg, Alexandre A.; Ibrahim, Yehia M.; Smith, Richard D.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
RP Shvartsburg, AA (reprint author), Pacific NW Natl Lab, Div Biol Sci, POB 999, Richland, WA 99352 USA.
EM alexandre.shvartsburg@pnnl.gov
RI Smith, Richard/J-3664-2012
OI Smith, Richard/0000-0002-2381-2349
NR 1
TC 0
Z9 0
U1 2
U2 6
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1044-0305
EI 1879-1123
J9 J AM SOC MASS SPECTR
JI J. Am. Soc. Mass Spectrom.
PD NOV
PY 2014
VL 25
IS 11
BP 1995
EP 1995
DI 10.1007/s13361-014-0984-y
PG 1
WC Biochemical Research Methods; Chemistry, Analytical; Chemistry,
Physical; Spectroscopy
SC Biochemistry & Molecular Biology; Chemistry; Spectroscopy
GA AR9NO
UT WOS:000343902100020
ER
PT J
AU Webb, IK
Chen, TC
Danielson, WF
Ibrahim, YM
Tang, K
Anderson, GA
Smith, RD
AF Webb, Ian K.
Chen, Tsung-Chi
Danielson, William F., III
Ibrahim, Yehia M.
Tang, Keqi
Anderson, Gordon A.
Smith, Richard D.
TI Implementation of Dipolar Resonant Excitation for Collision Induced
Dissociation with Ion Mobility/Time-of-Flight MS (vol 25, pg 563, 2014)
SO JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
LA English
DT Correction
C1 [Smith, Richard D.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Smith, RD (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
EM rds@pnnl.gov
RI Smith, Richard/J-3664-2012
OI Smith, Richard/0000-0002-2381-2349
NR 1
TC 0
Z9 0
U1 0
U2 2
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1044-0305
EI 1879-1123
J9 J AM SOC MASS SPECTR
JI J. Am. Soc. Mass Spectrom.
PD NOV
PY 2014
VL 25
IS 11
BP 1996
EP 1996
DI 10.1007/s13361-014-0985-x
PG 1
WC Biochemical Research Methods; Chemistry, Analytical; Chemistry,
Physical; Spectroscopy
SC Biochemistry & Molecular Biology; Chemistry; Spectroscopy
GA AR9NO
UT WOS:000343902100021
ER
PT J
AU Youinou, GJ
Sen, RS
AF Youinou, Gilles J.
Sen, R. Sonat
TI IMPACT OF ACCIDENT-TOLERANT FUELS AND CLADDINGS ON THE OVERALL FUEL
CYCLE: A PRELIMINARY SYSTEMS ANALYSIS
SO NUCLEAR TECHNOLOGY
LA English
DT Article
DE accident-tolerant fuel; accident-tolerant cladding; light water reactor
AB This paper presents a preliminary systems analysis related to most of the currently proposed enhanced accident-tolerant fuel and cladding concepts: fully ceramic microencapsulated fuels, uranium-molybdenum fuels, uranium-nitride fuels, uranium silicide fuels, silicon carbide cladding, advanced steel cladding, and molybdenum cladding. The benefits drawn from the implementation of demonstrated accident-tolerant fuels on the future development of nuclear energy generation as well as public acceptance are difficult to quantify but would probably be very significant. The potential impacts of these innovative light water reactor fuels on the front end of the fuel cycle, on the reactor operation, and on the back end of the fuel cycle are succinctly described.
C1 [Youinou, Gilles J.; Sen, R. Sonat] Idaho Natl Lab, Nucl Syst Design & Anal Div, Idaho Falls, ID 83415 USA.
RP Youinou, GJ (reprint author), Idaho Natl Lab, Nucl Syst Design & Anal Div, POB 1625,MS 3860, Idaho Falls, ID 83415 USA.
EM gilles.youinou@inl.gov
FU Idaho National Laboratory for the U.S. Department of Energy (DOE)
[DE-AC07-05ID14517]
FX This paper was prepared at the Idaho National Laboratory for the U.S.
Department of Energy (DOE) under contract DE-AC07-05ID14517. This work
was prepared for the DOE Fuel Cycle Options Campaign.
NR 19
TC 3
Z9 3
U1 3
U2 29
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5450
EI 1943-7471
J9 NUCL TECHNOL
JI Nucl. Technol.
PD NOV
PY 2014
VL 188
IS 2
BP 123
EP 138
PG 16
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS0GT
UT WOS:000343956800002
ER
PT J
AU Radulescu, G
Gauld, IC
Ilas, G
Wagner, JC
AF Radulescu, Georgeta
Gauld, Ian C.
Ilas, Germina
Wagner, John C.
TI APPROACH FOR VALIDATING ACTINIDE AND FISSION PRODUCT COMPOSITIONS FOR
BURNUP CREDIT CRITICALITY SAFETY ANALYSES
SO NUCLEAR TECHNOLOGY
LA English
DT Article
DE depletion; criticality; validation
ID ANALYSIS CAPABILITIES; SCALE 6
AB This paper describes a depletion code validation approach for criticality safety analysis using burnup credit for actinide and fission product nuclides in spent nuclear fuel (SNF) compositions. The technical basis for determining the uncertainties in the calculated nuclide concentrations is comparison of calculations to available measurements obtained from destructive radiochemical assay of SNF samples. Probability distributions developed for the uncertainties in the calculated nuclide concentrations were applied to the SNF compositions of criticality safety analysis models by the use of a Monte Carlo uncertainty sampling method to determine bias and bias uncertainty in the effective neutron multiplication factor. Application of the Monte Carlo uncertainty sampling approach is demonstrated for representative criticality safety analysis models of pressurized water reactor spent fuel pool storage racks and transportation packages using burnup-dependent nuclide concentrations calculated with Standardized Computer Analyses for Licensing Evaluation (SCALE) 6.1 and the Evaluated Nuclear Data File/B (ENDF/B) Version VII nuclear data. The validation approach and results support a recent revision of the U.S. Nuclear Regulatory Commission Interim Staff Guidance (ISG)-8.
C1 [Radulescu, Georgeta; Gauld, Ian C.; Ilas, Germina; Wagner, John C.] Oak Ridge Natl Lab, Reactor & Nucl Syst Div, Oak Ridge, TN 37831 USA.
RP Radulescu, G (reprint author), Oak Ridge Natl Lab, Reactor & Nucl Syst Div, POB 2008,Bldg 5700, Oak Ridge, TN 37831 USA.
EM radulescug@ornl.gov
RI Wagner, John/K-3644-2015;
OI Wagner, John/0000-0003-0257-4502; Radulescu,
Georgeta/0000-0001-7664-1718; Gauld, Ian/0000-0002-3893-7515
FU U.S. Department of Energy [DE-AC05-00OR22725]
FX This manuscript has been authored by Oak Ridge National Laboratory,
managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the
U.S. Department of Energy. The work presented in this paper was
performed under contract with the Office of Nuclear Regulatory Research,
NRC. This paper was prepared with support provided by the NRC Office of
Nuclear Material Safety and Safeguards (NMSS). The authors gratefully
acknowledge useful review comments and suggestions provided by D.
Algama, the NRC Project Manager; K. A. Wood of the Office of Nuclear
Reactor Regulation; M. Aissa and R. Y. Lee of the Office of Nuclear
Research; M. Rahimi, A. B. Barto, and Z. Li of NMSS; and C. N. Van Wert
and A. Patel of the Office of New Reactors.
NR 41
TC 1
Z9 1
U1 0
U2 5
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5450
EI 1943-7471
J9 NUCL TECHNOL
JI Nucl. Technol.
PD NOV
PY 2014
VL 188
IS 2
BP 154
EP 171
PG 18
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS0GT
UT WOS:000343956800004
ER
PT J
AU Hunier, SR
Lavrik, NV
Datskos, PG
Clayton, D
AF Hunier, Scott R.
Lavrik, Nickolay V.
Datskos, Panos G.
Clayton, Dwight
TI PYROELECTRIC ENERGY SCAVENGING TECHNIQUES FOR SELF-POWERED NUCLEAR
REACTOR WIRELESS SENSOR NETWORKS
SO NUCLEAR TECHNOLOGY
LA English
DT Article
DE energy harvesting; pyroelectric; wireless
ID HARVESTING WASTE HEAT; ELECTRICAL ENERGY; CONVERSION; CONVERTER;
COPOLYMER; OPTIMIZATION; SIMULATIONS; P(VDF-TRFE); HYSTERESIS;
EFFICIENCY
AB Recent advances in technologies for harvesting waste thermal energy from ambient environments present an opportunity to implement truly wireless sensor nodes in nuclear power plants. These sensors could continue to operate during extended station blackouts and during periods when operation of the plant's internal power distribution system has been disrupted. The energy required to power the wireless sensors must be generated using energy harvesting techniques from locally available energy sources, and the energy consumption within the sensor circuitry must therefore be low to minimize power and hence the size requirements of the energy harvester. Harvesting electrical energy from thermal energy sources can be achieved using pyroelectric or thermoelectric conversion techniques. Recent modeling and experimental studies have shown that pyroelectric in techniques can be cost-competitive with thermoelectrics in self-powered wireless sensor applications and, using new temperature cycling techniques, have the potential to be several times as efficient as thermoelectrics under comparable operating conditions. The development of a new thermal energy harvester concept, based on temperature cycled pyroelectric thermal-to-electrical energy conversion, is outlined. This paper outlines the modeling of cantilever and pyroelectric structures and single-element devices that demonstrate the potential of this technology for the development of high-efficiency thermal-to-electrical energy conversion devices.
C1 [Hunier, Scott R.; Lavrik, Nickolay V.; Datskos, Panos G.; Clayton, Dwight] Oak Ridge Natl Lab, Measurement Sci & Syst Engn Div, Oak Ridge, TN 37831 USA.
[Lavrik, Nickolay V.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci Div, Oak Ridge, TN 37831 USA.
RP Hunier, SR (reprint author), Oak Ridge Natl Lab, Measurement Sci & Syst Engn Div, POB 2008, Oak Ridge, TN 37831 USA.
EM huntersr@ornl.gov
RI Lavrik, Nickolay/B-5268-2011
OI Lavrik, Nickolay/0000-0002-9543-5634
FU Laboratory Directed Research and Development program at Oak Ridge
National Laboratory (ORNL) [DE-AC05-00OR22725]; Scientific User
Facilities Division, Office of Basic Energy Sciences, DOE
FX This research was sponsored by the Laboratory Directed Research and
Development program at Oak Ridge National Laboratory (ORNL), managed and
operated by UT-Battelle, LLC, for the U.S. Department of Energy (DOE)
under contract DE-AC05-00OR22725. A portion of this research was
conducted at the Center for Nanophase Materials Sciences, which is
sponsored at ORNL by the Scientific User Facilities Division, Office of
Basic Energy Sciences, DOE.
NR 40
TC 2
Z9 2
U1 0
U2 12
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5450
EI 1943-7471
J9 NUCL TECHNOL
JI Nucl. Technol.
PD NOV
PY 2014
VL 188
IS 2
BP 172
EP 184
PG 13
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS0GT
UT WOS:000343956800005
ER
PT J
AU Conlin, JL
Parsons, DK
Gardiner, SJ
Gray, M
Kahler, AC
Lee, MB
While, MC
AF Conlin, Jeremy Lloyd
Parsons, D. Kent
Gardiner, Steven J.
Gray, Mark
Kahler, A. C.
Lee, M. Beth
While, Morgan C.
TI VERIFICATION AND VALIDATION OF THE ENDF/B-VII.1-BASED CONTINUOUS-ENERGY
DATA TABLES FOR MCNP6
SO NUCLEAR TECHNOLOGY
LA English
DT Article
DE Monte Carlo; ENDF/B-VII.1; nuclear data
ID NUCLEAR-SCIENCE; TECHNOLOGY; LIBRARY
AB In December 2011, the National Nuclear Data Center released ENDF/B-VII.1, the "latest recommended evaluated nuclear data file for use in nuclear science and technology applications." The data were released in the standard Evaluated Nuclear Data Format (ENDF). This release represents the advances made in nuclear data during the 5 years since the release of ENDF/B-VII.0.
The Nuclear Data Team at Los Alamos National Laboratory has processed the ENDF/B-VII.1 library and made available a library of ACE data tables at several temperatures for each of the ENDF/B files. The ACE data library is called ENDF71x and is available through the Radiation Safety Information Computational Center with MCNP6. The files can also be used with MCNP5 or other Monte Carlo codes.
C1 [Conlin, Jeremy Lloyd; Parsons, D. Kent; Gardiner, Steven J.; Gray, Mark; Kahler, A. C.; Lee, M. Beth; While, Morgan C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Conlin, JL (reprint author), Los Alamos Natl Lab, POB 1663,MS F663, Los Alamos, NM 87545 USA.
EM jlconlin@lanl.gov
NR 11
TC 0
Z9 0
U1 0
U2 0
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 0029-5450
EI 1943-7471
J9 NUCL TECHNOL
JI Nucl. Technol.
PD NOV
PY 2014
VL 188
IS 2
BP 218
EP 227
PG 10
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AS0GT
UT WOS:000343956800009
ER
PT J
AU Casillas-Trujillo, L
Andersson, DA
Dorado, B
Nikl, M
Sickafus, KE
McClellan, KJ
Stanek, CR
AF Casillas-Trujillo, L.
Andersson, D. A.
Dorado, B.
Nikl, M.
Sickafus, K. E.
McClellan, K. J.
Stanek, C. R.
TI Intrinsic defects, nonstoichiometry, and aliovalent doping of
A(2+)B(4)+O-3 perovskite scintillators
SO PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
LA English
DT Article
DE atomistic simulation; defects; nonstoichiometry; perovskites;
scintillators
ID TEMPERATURE PHASE-TRANSITIONS; NEUTRON POWDER DIFFRACTION; DOPED BARIUM
ZIRCONATE; CRYSTAL-STRUCTURES; LATTICE-DYNAMICS; SRHFO3; HAFNATE;
SRZRO3; OXIDES; LUMINESCENCE
AB We have employed a range of atomistic simulation methods to explore aspects defect chemistry in ABO; (where A(2+) =Ba2+ or Sr2+, and B4+ = zr(4+) or Hf4+) perovskites. placing emphasis Oil processes relevant for application of these materials iis high performance scintillittors. Specifically. vie examined intrinsic defect. reactions. A :Ind k excess nonstoichiometry :Ind the solution of Nile rare earth cations. As has predicted in previous studies. we MkI that Schottl:y disorder is the lowest energy intrinsic process. kg nonstoichitimetry. we predict that Ao-excess is compensated by- oxygen x-aciincies aid 2excess is charge compensated by A (SCC Zibslracl figure). Finally. for Me" solution. WC considered seyeral reactions for Me' cations ranging in size from to lu and the preferred reaction depends on the specific Me' cation;Ind xvhether or not phase seperation occurs
C1 [Casillas-Trujillo, L.; Sickafus, K. E.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Andersson, D. A.; Dorado, B.; McClellan, K. J.; Stanek, C. R.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
[Dorado, B.] CEA, DAM, DIF, F-91297 Arpajon, France.
[Nikl, M.] Acad Sci Czech Republic, Inst Phys, Prague 16253, Czech Republic.
RP Stanek, CR (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
EM stanek@lanl.gov
NR 71
TC 4
Z9 4
U1 1
U2 31
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA POSTFACH 101161, 69451 WEINHEIM, GERMANY
SN 0370-1972
EI 1521-3951
J9 PHYS STATUS SOLIDI B
JI Phys. Status Solidi B-Basic Solid State Phys.
PD NOV
PY 2014
VL 251
IS 11
BP 2279
EP 2286
DI 10.1002/pssb.201451064
PG 8
WC Physics, Condensed Matter
SC Physics
GA AS6GP
UT WOS:000344362700021
ER
PT J
AU Kanevce, A
Levi, DH
Kuciauskas, D
AF Kanevce, A.
Levi, D. H.
Kuciauskas, D.
TI The role of drift, diffusion, and recombination in time-resolved
photoluminescence of CdTe solar cells determined through numerical
simulation
SO PROGRESS IN PHOTOVOLTAICS
LA English
DT Article
DE CdTe; photoluminescence; numerical simulations
AB Time-resolved photoluminescence (TRPL) measurements are one of the key metrics available to determine the minority-carrier lifetime in the absorber layer of direct band gap photovoltaic devices. Direct measurement of the minority-carrier lifetime is essential to understanding the impact of changes in deposition and processing on material quality. Unfortunately, the TRPL signal is determined by a complex convolution of multiple physical factors including bulk carrier lifetime, interface recombination velocity, electric field, doping density, photo-excited carrier density, and carrier mobility. To gain clarity, we have used numerical simulations to analyze the carrier dynamics after a CdTe device is illuminated with a short light pulse. After the light pulse, the photo-generated carriers undergo complex dynamics including drift, diffusion, interface, and bulk recombination. In this work, we develop a new formalism that enables much greater insight into which factors dominate the TRPL decay dynamics. By breaking down the carrier dynamics into drift, diffusion, and recombination terms, we have developed six-factor, four-factor, and two-factor analyses that provide clear understanding of which physical factors dominate the decay dynamics under various conditions and at different times during the decay. We show that in a typical CdTe device under the typical experimental conditions used in our laboratories, the faster part of the decay is dominated by charge separation, whereas the slower part is dominated by carrier recombination. Therefore, under the conditions investigated in this study, the slower part of the decay is a better parameter to explain the defect density in the CdTe layer. Copyright (c) 2013 John Wiley & Sons, Ltd.
C1 [Kanevce, A.; Levi, D. H.; Kuciauskas, D.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Kanevce, A (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM Ana.Kanevce@nrel.gov
FU US Department of Energy [DE-AC36-08-GO28308]; National Renewable Energy
Laboratory
FX The authors wish to acknowledge valuable discussions regarding the
nature of TRPL decays in CdTe devices with Timothy A. Gessert and David
S. Albin of the NREL. This work was supported by the US Department of
Energy under Contract No. DE-AC36-08-GO28308 with the National Renewable
Energy Laboratory. This paper is subject to government rights.
NR 18
TC 23
Z9 23
U1 4
U2 46
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1062-7995
EI 1099-159X
J9 PROG PHOTOVOLTAICS
JI Prog. Photovoltaics
PD NOV
PY 2014
VL 22
IS 11
BP 1138
EP 1146
DI 10.1002/pip.2369
PG 9
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA AR7JH
UT WOS:000343755000004
ER
PT J
AU Kempe, MD
Dameron, AA
Reese, MO
AF Kempe, Michael D.
Dameron, Arrelaine A.
Reese, Matthew O.
TI Evaluation of moisture ingress from the perimeter of photovoltaic
modules
SO PROGRESS IN PHOTOVOLTAICS
LA English
DT Article
DE photovoltaic; edge-seal; moisture; humidity; polyisobutylene; desiccant;
encapsulant
ID DIFFUSION TIME LAG; WATER-VAPOR; SOLAR-CELLS; POLYISOBUTYLENE;
TEMPERATURE; STABILITY; SORPTION; SYSTEMS; TESTS; FILM
AB Many thin film photovoltaic (PV) technologies can be sensitive to corrosion induced by the presence of water vapor in the packaging materials. Typically impermeable front and backsheets are used in conjunction with an edge-seal around the perimeter to prevent water vapor ingress. These edge-seal materials are often made of a polyisobutylene resin filled with desiccant, which dramatically increases the time for moisture to reach sensitive module components. While edge-seals can prevent moisture ingress, even the lowest diffusivity transparent encapsulant materials are insufficient for the lifetime of a module. To evaluate the performance of edge-seal and encapsulant materials in a manner that simulates their function in a PV module, an optical method was devised where ingress is detected by reaction of a Ca film with water. Using this method, we have exposed test samples to heat and humidity allowing quantitative comparison of different edge-seal and encapsulant materials. Next, we use measurements of polymer diffusivity and solubility to evaluate the ability to model this moisture ingress. Here, we find good agreement between these two methods highlighting the much greater ability of polyisobutylene materials to keep moisture out as compared with typical encapsulant materials used in the PV industry. Copyright (c) 2013 John Wiley & Sons, Ltd.
C1 [Kempe, Michael D.; Dameron, Arrelaine A.; Reese, Matthew O.] NREL, Golden, CO 80401 USA.
RP Kempe, MD (reprint author), NREL, Golden, CO 80401 USA.
EM michael.kempe@nrel.gov
FU US Department of Energy [DOE-AC36-08GO28308]; National Renewable Energy
Laboratory
FX The Authors would like to acknowledge the help of Sarah Kurtz, David
Miller, Calvin Curtis, Kent Terwilliger, Thomas Moricone, Joshua Martin,
and Tom Gennett. This work was supported by the US Department of Energy
under Contract No. DOE-AC36-08GO28308 with the National Renewable Energy
Laboratory.
NR 32
TC 14
Z9 14
U1 2
U2 29
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1062-7995
EI 1099-159X
J9 PROG PHOTOVOLTAICS
JI Prog. Photovoltaics
PD NOV
PY 2014
VL 22
IS 11
BP 1159
EP 1171
DI 10.1002/pip.2374
PG 13
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA AR7JH
UT WOS:000343755000006
ER
PT J
AU Liang, R
Shterengas, L
Hosoda, T
Stein, A
Lu, M
Kipshidze, G
Belenky, G
AF Liang, Rui
Shterengas, Leon
Hosoda, Takashi
Stein, Aaron
Lu, Ming
Kipshidze, Gela
Belenky, Gregory
TI Diffraction limited 3.15 mu m cascade diode lasers
SO SEMICONDUCTOR SCIENCE AND TECHNOLOGY
LA English
DT Article
DE diffraction limited; cascade; diode lasers; type-I; quantum well; GaSb
ID GASB; GAIN
AB Cascade GaSb-based type-I quantum well diode lasers emitting near 3.15 mu m were designed and fabricated. The efficient carrier recycling between stages was confirmed by twofold increase of the efficiency of two-stage cascade laser as compared to reference single-stage devices. Narrow ridge cascade lasers generated more than 40 mW of continuous-wave output power in diffraction limited beam at room temperature.
C1 [Liang, Rui; Shterengas, Leon; Hosoda, Takashi; Kipshidze, Gela; Belenky, Gregory] SUNY Stony Brook, Dept ECE, Stony Brook, NY 11794 USA.
[Stein, Aaron; Lu, Ming] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Liang, R (reprint author), SUNY Stony Brook, Dept ECE, Stony Brook, NY 11794 USA.
EM leon.shterengas@stonybrook.edu
RI Liang, Rui/A-7968-2012
OI Liang, Rui/0000-0001-5833-2292
FU US Army Research Office [W911NF1110109]; Air Force Office of Scientific
Research [FA95501110136]; US Department of Energy, Office of Basic
Energy Sciences [DE-AC02-98CH10886]
FX This work was supported by US Army Research Office, Grant W911NF1110109
and Air Force Office of Scientific Research, Grant FA95501110136.
Research carried out in part at the Center for Functional Nanomaterials,
Brookhaven National Laboratory, which is supported by the US Department
of Energy, Office of Basic Energy Sciences, under Contract No.
DE-AC02-98CH10886.
NR 13
TC 4
Z9 4
U1 0
U2 10
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0268-1242
EI 1361-6641
J9 SEMICOND SCI TECH
JI Semicond. Sci. Technol.
PD NOV
PY 2014
VL 29
IS 11
AR 115016
DI 10.1088/0268-1242129/11/115016
PG 6
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Engineering; Materials Science; Physics
GA AS0YS
UT WOS:000344003300019
ER
PT J
AU Rumyantsev, SL
Levinshtein, ME
Saxena, T
Shur, MS
Cheng, L
Palmour, JW
Agarwal, A
AF Rumyantsev, S. L.
Levinshtein, M. E.
Saxena, T.
Shur, M. S.
Cheng, L.
Palmour, J. W.
Agarwal, A.
TI Optical triggering of 4H-SiC thyristors (18kV class) to high currents in
purely inductive load circuit
SO SEMICONDUCTOR SCIENCE AND TECHNOLOGY
LA English
DT Article
DE silicon carbide; power devices; thyristors; optical triggering
ID SILICON-CARBIDE THYRISTOR; POWER APPLICATIONS; SWITCH-ON
AB Optical switch-on of a very high voltage (18 kV class) 4H-SiC thyristor with an amplification step (pilot thyristor) to the current I-max= 1225 A is demonstrated using a purely inductive load and a calibrated air transformer. Increasing the inductance of the transformer primary winding slows down the turn on process. However, the inductance has little effect during the initial stage of the switch-on process when the voltage drop on the thyristor and its internal resistance is high. The results show that a further switch-on current increase can be only achieved by introducing additional amplification steps in the pilot thyristor.
C1 [Rumyantsev, S. L.; Levinshtein, M. E.] Ioffe Inst, St Petersburg 194021, Russia.
[Rumyantsev, S. L.; Saxena, T.; Shur, M. S.] Rensselaer Polytech Inst, CII 6017, Dept Elect Comp & Syst Engn & Phys Appl Phys & As, Troy, NY 12180 USA.
[Cheng, L.; Palmour, J. W.] Cree Inc, Durham, NC 27703 USA.
[Agarwal, A.] US DOE, EERE, Washington, DC USA.
RP Rumyantsev, SL (reprint author), Ioffe Inst, 26 Politekhnicheskaya, St Petersburg 194021, Russia.
EM roumis2@rpi.edu
RI Levinshtein, Michael/A-4325-2014; Shur, Michael/A-4374-2016
OI Shur, Michael/0000-0003-0976-6232
FU Russian Foundation for Basic Research; Army Research Laboratory under
ARL MSME Alliance
FX At Cree Inc., this work was supported by Mr Charles Scozzie of Army
Research Laboratory, Adelphi, Maryland. At the Ioffe Institute this work
was partly supported by the Russian Foundation for Basic Research. The
work at Rensselaer Polytechnic Institute was supported by the Army
Research Laboratory under ARL MSME Alliance (Project Monitor Dr Meredith
Read).
NR 22
TC 0
Z9 0
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0268-1242
EI 1361-6641
J9 SEMICOND SCI TECH
JI Semicond. Sci. Technol.
PD NOV
PY 2014
VL 29
IS 11
AR 115003
DI 10.1088/0268-1242/29/11/115003
PG 5
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Engineering; Materials Science; Physics
GA AS0YS
UT WOS:000344003300006
ER
PT J
AU Maxwell, JL
Webb, N
Bradshaw, D
Black, MR
Maskaly, K
Chavez, CA
Espinoza, M
Vessard, S
Art, B
Johnson, S
Boman, M
Gananavelu, S
AF Maxwell, James L.
Webb, Nicholas
Bradshaw, Douglas
Black, Marcie R.
Maskaly, Karlene
Chavez, Craig A.
Espinoza, Miguel
Vessard, Stuart
Art, Blair
Johnson, Scot
Boman, Mats
Gananavelu, S.
TI On "how to start a fire'', or transverse forced-convection, hyperbaric
laser chemical vapor deposition of fibers and textiles
SO TEXTILE RESEARCH JOURNAL
LA English
DT Article
DE laser deposition; fiber; coil; microstructure; hyperbaric pressure;
pyrolysis; natural convection; forced convection; mass transfer; flow
rate; fire
ID CARBON-FIBERS; SINGLE-CRYSTALS; GROWTH; LCVD; TITANIUM; SILICON; PHASE;
FILMS; BORON
AB This work explores the transverse forced flow of precursor gases during hyperbaric pressure laser chemical vapor deposition (HP-LCVD). Axial and mass growth rates of carbon fibers are measured experimentally, and a numerical model is developed that provides fiber growth rates in both the mass-transport-limited (MTL) and kinetically limited (KL) regimes. It is found that the fiber's transport-limited rate increases as the square root of the flow velocity, while simultaneously, the temperature drops with the inverse square root of the flow velocity. Growth is enhanced by forced flow so long as the reaction zone remains within the MTL regime; upon reaching a critical temperature and flow rate, however, fibers enter the KL regime, and the growth rate declines with rising flow rate. Molecular properties of the precursors employed and gas concentrations ultimately determine the range of the MTL and the locations of the critical temperature and flow rate. The growth rates of fibers can indeed be enhanced by transverse forced convection-to at least three times the zero-flow steady-state rate, provided an MTL regime exists. Complex three-dimensional structures may be grown from these fibers in a freeform manner, and the more rapidly such microstructures can be fabricated, the more practical HP-LCVD becomes for industrial use, including the fabrication of novel textiles.
C1 [Maxwell, James L.; Webb, Nicholas; Bradshaw, Douglas; Espinoza, Miguel] Dynetics Inc, Adv Mat & Nanosyst Grp, Huntsville, AL USA.
[Black, Marcie R.; Gananavelu, S.] Bandgap Engn Inc, Salem, NH USA.
[Maskaly, Karlene; Chavez, Craig A.; Vessard, Stuart; Art, Blair] Los Alamos Natl Lab, NEMISIS Team, Intelligence Anal & Technol IAT Div, Los Alamos, NM 87545 USA.
[Johnson, Scot] Los Alamos Natl Lab, ENV EDA Div, Los Alamos, NM 87545 USA.
[Boman, Mats] Uppsala Univ, Dept Inorgan Chem, Uppsala, Sweden.
[Gananavelu, S.] Louisiana Tech Univ, IFM, Ruston, LA USA.
RP Maxwell, JL (reprint author), Dynetics Inc, Huntsville, AL 35805 USA.
EM james.maxwell@dynetics.com
NR 55
TC 0
Z9 0
U1 1
U2 8
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0040-5175
EI 1746-7748
J9 TEXT RES J
JI Text. Res. J.
PD NOV
PY 2014
VL 84
IS 18
BP 1976
EP 1986
DI 10.1177/0040517514527373
PG 11
WC Materials Science, Textiles
SC Materials Science
GA AR7NX
UT WOS:000343767600007
ER
PT J
AU Burton, AL
Johnson, JM
Foerster, JM
Hirsch, CN
Buell, CR
Hanlon, MT
Kaeppler, SM
Brown, KM
Lynch, JP
AF Burton, Amy L.
Johnson, James M.
Foerster, Jillian M.
Hirsch, Candice N.
Buell, C. R.
Hanlon, Meredith T.
Kaeppler, Shawn M.
Brown, Kathleen M.
Lynch, Jonathan P.
TI QTL mapping and phenotypic variation for root architectural traits in
maize (Zea mays L.)
SO THEORETICAL AND APPLIED GENETICS
LA English
DT Article
ID SYSTEM ARCHITECTURE; PHOSPHORUS ACQUISITION; GENETIC-IMPROVEMENT;
PHASEOLUS-VULGARIS; DROUGHT-RESISTANCE; FIELD CONDITIONS; SEEDLING
STAGE; WATER REGIMES; SHOOT TRAITS; UPLAND RICE
AB QTL were identified for root architectural traits in maize.
Root architectural traits, including the number, length, orientation, and branching of the principal root classes, influence plant function by determining the spatial and temporal domains of soil exploration. To characterize phenotypic patterns and their genetic control, three recombinant inbred populations of maize were grown for 28 days in solid media in a greenhouse and evaluated for 21 root architectural traits, including length, number, diameter, and branching of seminal, primary and nodal roots, dry weight of embryonic and nodal systems, and diameter of the nodal root system. Significant phenotypic variation was observed for all traits. Strong correlations were observed among traits in the same root class, particularly for the length of the main root axis and the length of lateral roots. In a principal component analysis, relationships among traits differed slightly for the three families, though vectors grouped together for traits within a given root class, indicating opportunities for more efficient phenotyping. Allometric analysis showed that trajectories of growth for specific traits differ in the three populations. In total, 15 quantitative trait loci (QTL) were identified. QTL are reported for length in multiple root classes, diameter and number of seminal roots, and dry weight of the embryonic and nodal root systems. Phenotypic variation explained by individual QTL ranged from 0.44 % (number of seminal roots, NyH population) to 13.5 % (shoot dry weight, OhW population). Identification of QTL for root architectural traits may be useful for developing genotypes that are better suited to specific soil environments.
C1 [Burton, Amy L.; Hanlon, Meredith T.; Brown, Kathleen M.; Lynch, Jonathan P.] Penn State Univ, Dept Plant Sci, University Pk, PA 16801 USA.
[Johnson, James M.; Foerster, Jillian M.; Kaeppler, Shawn M.] Univ Wisconsin, Dept Agron, Madison, WI 53706 USA.
[Hirsch, Candice N.; Buell, C. R.] Michigan State Univ, Dept Plant Biol, E Lansing, MI 48824 USA.
[Hirsch, Candice N.; Buell, C. R.] Michigan State Univ, DOE Great Lakes Bioenergy Res Ctr, E Lansing, MI 48824 USA.
RP Lynch, JP (reprint author), Penn State Univ, Dept Plant Sci, 102 Tyson Bldg, University Pk, PA 16801 USA.
EM jpl4@psu.edu
OI Kaeppler, Shawn/0000-0002-5964-1668
FU United States Department of Agriculture National Research Initiative
[207-35100-18365]
FX We thank Lauren Gelesh, Johanna Mirenda, and Robert Snyder for technical
assistance with plant cultivation and harvesting, and Anushree Sanyal
for assistance with the QTL analysis. We thank Harini Rangarajan for
creation of the image used in Fig. 1. This work was supported by United
States Department of Agriculture National Research Initiative [grant #
207-35100-18365 to JPL and KMB].
NR 70
TC 16
Z9 17
U1 7
U2 59
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0040-5752
EI 1432-2242
J9 THEOR APPL GENET
JI Theor. Appl. Genet.
PD NOV
PY 2014
VL 127
IS 11
BP 2293
EP 2311
DI 10.1007/s00122-014-2353-4
PG 19
WC Agronomy; Plant Sciences; Genetics & Heredity; Horticulture
SC Agriculture; Plant Sciences; Genetics & Heredity
GA AS5YY
UT WOS:000344343500002
PM 25230896
ER
PT J
AU Ma, DY
Wang, ZD
Guo, M
Zhang, M
Liu, JB
AF Ma, Dongyang
Wang, Zhendong
Guo, Min
Zhang, Mei
Liu, Jingbo
TI Feasible conversion of solid waste bauxite tailings into highly
crystalline 4A zeolite with valuable application
SO WASTE MANAGEMENT
LA English
DT Article
DE Bauxite tailings; 4A zeolite; Alkali fusion; Crystallization; Calcium
ion exchange capacity
ID RED MUD; DIASPORIC-BAUXITE; FLY-ASH; WATER; FLOTATION; MICROSTRUCTURE;
METAKAOLIN; SEPARATION; COLLECTOR; EXCHANGE
AB Bauxite tailings are a major type of solid wastes generated in the flotation process. The waste by-products caused significant environmental impact. To lessen this hazardous effect from poisonous mine tailings, a feasible and cost-effective solution was conceived and implemented. Our approach focused on reutilization of the bauxite tailings by converting it to 4A zeolite for reuse in diverse applications. Three steps were involved in the bauxite conversion: wet-chemistry, alkali fusion, and crystallization to remove impurities and to prepare porous 4A zeolite. It was found that the cubic 4A zeolite was single phase, in high purity, with high crystallinity and well-defined structure. Importantly, the 4A zeolite displayed maximum calcium ion exchange capacity averaged at 296 mg CaCO3/g, comparable to commercially-available zeolite (310 mg CaCO3/g) exchange capacity. Base on the optimal synthesis condition, the reaction yield of zeolite 4A from bauxite tailings achieved to about 38.43%, hence, this study will provide a new paradigm for remediation of bauxite tailings, further mitigating the environmental and health care concerns, particularly in the mainland of PR China. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Ma, Dongyang; Wang, Zhendong; Guo, Min; Zhang, Mei] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China.
[Liu, Jingbo] Texas A&M Univ Kingsville, Dept Chem, Kingsville, TX 78363 USA.
[Liu, Jingbo] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Zhang, M (reprint author), Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China.
EM zhangmei@ustb.edu.cn
FU National Science Foundation of China [51272025, 51072022, 50874013];
National Science and Technology Supporting Program [2011BAB03B02]
FX The National Science Foundation of China (Nos. 51272025, 51072022,
50874013) and National Science and Technology Supporting Program (No.
2011BAB03B02) are duly acknowledged for their financial support. Dr. S.
Bashir (Department of Chemistry, TAMUK) was also acknowledged for
proof-reading and copyediting the manuscript.
NR 27
TC 4
Z9 4
U1 4
U2 37
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0956-053X
J9 WASTE MANAGE
JI Waste Manage.
PD NOV
PY 2014
VL 34
IS 11
BP 2365
EP 2372
DI 10.1016/j.wasman.2014.07.012
PG 8
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA AR8QY
UT WOS:000343840800053
PM 25153822
ER
PT J
AU Kilpelainen, A
Robertson, RA
Leitner, T
Sandstrom, E
Maeurer, M
Wahren, B
AF Kilpelainen, Athina
Robertson, Rebecca Axelsson
Leitner, Thomas
Sandstrom, Eric
Maeurer, Markus
Wahren, Britta
TI Short Communication: HIV-1 Nef Protein Carries Multiple Epitopes
Suitable for Induction of Cellular Immunity for an HIV Vaccine in Africa
SO AIDS RESEARCH AND HUMAN RETROVIRUSES
LA English
DT Article
ID CLASS-I; DOWN-REGULATION; HLA-A; SEQUENCE; PREDICTIONS; RESPONSES; GAG;
NETMHCPAN; DATABASE; BINDING
AB Using the early protein HIV Nef, new HLA class I binding epitopes of importance for immune responses to HIV were predicted for common African alleles. In total we identified 45 epitopes previously not described for the HLA alleles A*30:01, A*30:02, B*58:01, and C*07:01 and compared them to reported epitopes, primarily from HLA-A*02:01, from the Los Alamos database and our own vaccine studies. Related to its small size, the Nef gene/protein appears to be able to contribute effectively to confer both stronger and broader cellular immunogenicity to an HIV-1 vaccine. We also propose feasible mutations of such an additional vaccine antigen to preserve its immunogenicity, modified not to confer HLA or CD4(+) down-regulating activities. This article includes data on a valuable HIV immunogenic component for a vaccine in Africa.
C1 [Kilpelainen, Athina; Wahren, Britta] Karolinska Inst, Dept Microbiol Tumor & Cell Biol, SE-17177 Stockholm, Sweden.
[Robertson, Rebecca Axelsson; Maeurer, Markus] Karolinska Inst, Therapeut Immunol TIM, Dept Lab Med, SE-17177 Stockholm, Sweden.
[Robertson, Rebecca Axelsson; Maeurer, Markus] Karolinska Inst, CAST, SE-17177 Stockholm, Sweden.
[Leitner, Thomas] Los Alamos Natl Lab, Los Alamos, NM USA.
[Sandstrom, Eric] Karolinska Inst, Dept Sodersjukhuset, SE-17177 Stockholm, Sweden.
RP Wahren, B (reprint author), Karolinska Inst, Dept Microbiol Tumor & Cell Biol, SE-17177 Stockholm, Sweden.
EM britta.wahren@ki.se
FU Swedish Research Council; European Commission [037611]
FX Funding was received from the Swedish Research Council and the European
Commission FP6 grant 037611 (Europrise).
NR 37
TC 0
Z9 0
U1 0
U2 5
PU MARY ANN LIEBERT, INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 0889-2229
EI 1931-8405
J9 AIDS RES HUM RETROV
JI Aids Res. Hum. Retrovir.
PD NOV 1
PY 2014
VL 30
IS 11
BP 1065
EP 1071
DI 10.1089/aid.2013.0299
PG 7
WC Immunology; Infectious Diseases; Virology
SC Immunology; Infectious Diseases; Virology
GA AR7OY
UT WOS:000343770300008
PM 24866397
ER
PT J
AU Kressel, L
Faries, KM
Wander, MJ
Zogzas, CE
Mejdrich, RJ
Hanson, DK
Holten, D
Laible, PD
Kirmaier, C
AF Kressel, Lucas
Faries, Kaitlyn M.
Wander, Marc J.
Zogzas, Charles E.
Mejdrich, Rachel J.
Hanson, Deborah K.
Holten, Dewey
Laible, Philip D.
Kirmaier, Christine
TI High yield of secondary B-side electron transfer in mutant Rhodobacter
capsulatus reaction centers
SO BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
LA English
DT Article
DE Photosynthetic reaction center; Charge recombination; High-throughput
screening; Ultrafast spectroscopy; Directed evolution; Transmembrane
electron transfer
ID PHOTOSYNTHETIC REACTION CENTERS; BACTERIAL REACTION CENTERS; SPHAEROIDES
REACTION CENTERS; PRIMARY CHARGE SEPARATION; PHOTOACTIVE
BACTERIOPHEOPHYTIN; RHODOPSEUDOMONAS-SPHAEROIDES; FREE-ENERGY;
BACTERIOCHLOROPHYLL REPLACES; TEMPERATURE-DEPENDENCE; QUINONE REDUCTION
AB From the crystal structures of reaction centers (RCs) from purple photosynthetic bacteria, two pathways for electron transfer (ET) are apparent but only one pathway (the A side) operates in the native protein-cofactor complex. Partial activation of the B-side pathway has unveiled the true inefficiencies of ET processes on that side in comparison to analogous reactions on the A side. Of significance are the relative rate constants for forward ET and the competing charge recombination reactions. On the B side, these rate constants are nearly equal for the secondary charge-separation step (ET from bacteriopheophytin to quinone), relegating the yield of this process to <50%. Herein we report efforts to optimize this step. In surveying all possible residues at position 131 in the M subunit, we discovered that when glutamic acid replaces the native valine the efficiency of the secondary ET is nearly two-fold higher than in the wild-type RC. The positive effect of M131 Glu is likely due to formation of a hydrogen bond with the ring V keto group of the B-side bacteriopheophytin leading to stabilization of the charge-separated state involving this cofactor. This change slows charge recombination by roughly a factor of two and affords the improved yield of the desired forward ET to the B-side quinone terminal acceptor. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Kressel, Lucas; Wander, Marc J.; Zogzas, Charles E.; Mejdrich, Rachel J.; Hanson, Deborah K.; Laible, Philip D.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
[Faries, Kaitlyn M.; Holten, Dewey; Kirmaier, Christine] Washington Univ, Dept Chem, St Louis, MO 63130 USA.
RP Kirmaier, C (reprint author), Washington Univ, Dept Chem, St Louis, MO 63130 USA.
EM kirmaier@wustl.edu
OI zogzas, charles/0000-0003-0092-6316
FU DOE Office of Basic Energy Sciences, Division of Chemical Sciences,
Geosciences, and Biosciences [DE-FG-02-09ER16116]; Argonne, a U.S.
Department of Energy Office of Science [DE-AC02-06CH11357]; National
Science Foundation Graduate Research Fellowship [DGE-1143954]
FX This work was supported by grant DE-FG-02-09ER16116 (to CK, DH and PDL)
from DOE Office of Basic Energy Sciences, Division of Chemical Sciences,
Geosciences, and Biosciences. Argonne, a U.S. Department of Energy
Office of Science laboratory, is operated under Contract No.
DE-AC02-06CH11357. KMF was supported by the National Science Foundation
Graduate Research Fellowship under Grant No. DGE-1143954. CEZ and RJM
were participants in DOE-sponsored summer internship programs for
undergraduate students.
NR 67
TC 3
Z9 3
U1 0
U2 23
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0005-2728
EI 0006-3002
J9 BBA-BIOENERGETICS
JI Biochim. Biophys. Acta-Bioenerg.
PD NOV
PY 2014
VL 1837
IS 11
BP 1892
EP 1903
DI 10.1016/j.bbabio.2014.07.015
PG 12
WC Biochemistry & Molecular Biology; Biophysics
SC Biochemistry & Molecular Biology; Biophysics
GA AR5JM
UT WOS:000343621200005
PM 25091280
ER
PT J
AU Rankin, BA
Magnotti, G
Barlow, RS
Gore, JP
AF Rankin, Brent A.
Magnotti, Gaetano
Barlow, Robert S.
Gore, Jay P.
TI Radiation intensity imaging measurements of methane and dimethyl ether
turbulent nonpremixed and partially premixed jet flames
SO COMBUSTION AND FLAME
LA English
DT Article
DE Flame radiation; Turbulent nonpremixed flame; Turbulent partially
premixed flame; Dimethyl ether flame; Non-intrusive measurement;
Infrared imaging
ID LAMINAR DIFFUSION FLAMES; TIME-SERIES MEASUREMENTS; SPECTRAL RADIATION;
SCALAR DISSIPATION; PDF CALCULATIONS; LENGTH SCALES; SIMULATION;
EXTINCTION; DYNAMICS; NOISE
AB Quantitative time-dependent images of the infrared radiation intensity from methane and dimethyl ether (DME) turbulent nonpremixed and partially premixed jet flames are measured and discussed in this work. The fuel compositions (CH4/H-2/N-2, C2H6O/H-2/N-2, CH4/air, and C2H6O/air) and Reynolds numbers (15,200-46,250) for the flames were selected following the guidelines of the International Workshop on Measurement and Computation of Turbulent Nonpremixed Flames (TNF Workshop). The images of the radiation intensity are acquired using a calibrated high speed infrared camera and three band-pass filters. The band-pass filters enable measurements of radiation from water vapor and carbon dioxide over the entire flame length and beyond. The images reveal localized regions of high and low intensity characteristic of turbulent flames. The peak mean radiation intensity is approximately 15% larger for the DME nonpremixed flames and 30% larger for the DME partially premixed flames in comparison to the corresponding methane flames. The trends are explained by a combination of higher temperatures and longer stoichiometric flame lengths for the DME flames. The longer flame lengths are attributed to the higher density of the DME fuel mixtures based on existing flame length scaling relationships. The longer flame lengths result in larger volumes of high temperature gas and correspondingly higher path-integrated radiation intensities near and downstream of the stoichiometric flame length. The radiation intensity measurements acquired with the infrared camera agree with existing spectroscopy measurements demonstrating the quantitative nature of the present imaging technique. The images provide new benchmark data of turbulent nonpremixed and partially premixed jet flames. The images can be compared with results of large eddy simulations rendered in the form of quantitative images of the infrared radiation intensity. Such comparisons are expected to support the evaluation of models used in turbulent combustion and radiation simulations. (C) 2014 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
C1 [Rankin, Brent A.; Gore, Jay P.] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA.
[Rankin, Brent A.] Innovat Sci Solut Inc, Dayton, OH 45459 USA.
[Magnotti, Gaetano; Barlow, Robert S.] Sandia Natl Labs, Livermore, CA 94551 USA.
RP Rankin, BA (reprint author), 7610 McEwen Rd, Dayton, OH 45459 USA.
EM brent.rankin.ctr@us.af.mil
RI Rankin, Brent/A-1598-2017
OI Rankin, Brent/0000-0002-5967-9527
NR 49
TC 2
Z9 2
U1 6
U2 15
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0010-2180
EI 1556-2921
J9 COMBUST FLAME
JI Combust. Flame
PD NOV
PY 2014
VL 161
IS 11
BP 2849
EP 2859
DI 10.1016/j.combustflame.2014.04.019
PG 11
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
Engineering, Chemical; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA AR1YH
UT WOS:000343380000009
ER
PT J
AU Lin, G
Bao, J
Xu, ZJ
AF Lin, Guang
Bao, Jie
Xu, Zhijie
TI A three-dimensional phase field model coupled with a lattice kinetics
solver for modeling crystal growth in furnaces with accelerated crucible
rotation and traveling magnetic field
SO COMPUTERS & FLUIDS
LA English
DT Article
DE Phase field; Crystal growth; Accelerated crucible rotation technique;
(ACRT); Traveling magnetic field (TMF); Lattice Kinetics; Modeling
ID VERTICAL BRIDGMAN GROWTH; CADMIUM ZINC TELLURIDE; SIGE SINGLE-CRYSTALS;
BOLTZMANN-EQUATION; THERMAL-CONDUCTIVITY; FLUID-FLOWS; SIMULATIONS;
CDXHG1-XTE; ACRT; SEGREGATION
AB In this study, we present a new three-dimensional numerical model for crystal growth in a vertical solidification system. This model accounts for buoyancy, accelerated crucible rotation technique (ACRT), and traveling magnetic field (TMF) induced convective flow and their effect on crystal growth and the chemical component's transport process. The evolution of the crystal growth interface is simulated using the phase-field method. A semi-implicit lattice kinetics solver based on the Boltzmann equation is employed to model the unsteady incompressible flow. A one-way coupled concentration transport model is used to simulate the component fraction variation in both the liquid and solid phases, which can be used to check the quality of the crystal growth. Numerical results indicate that ACRT can slightly increase the quality of grown crystal, but the effect of TMF on quality of grown crystal depends on the temperature profile of the ampoule wall. Finally, excellent scalability of our developed parallel methods is demonstrated on the three-dimensional cases. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Lin, Guang] Purdue Univ, Dept Math, Sch Mech Engn, W Lafayette, IN 47907 USA.
[Bao, Jie; Xu, Zhijie] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Lin, G (reprint author), Purdue Univ, Dept Math, Sch Mech Engn, W Lafayette, IN 47907 USA.
EM guanglin@purdue.edu
RI Xu, Zhijie/A-1627-2009
OI Xu, Zhijie/0000-0003-0459-4531
FU Applied Mathematics Program within the Department of Energy Office of
Advanced Scientific Computing Research, Collaboratory on Mathematics for
Mesoscopic Modeling of Materials; U.S. Department of Energy
[DE-AC05-76RL01830]
FX This work was supported by the Applied Mathematics Program within the
Department of Energy Office of Advanced Scientific Computing Research as
part of the Collaboratory on Mathematics for Mesoscopic Modeling of
Materials. PNNL is operated by Battelle for the U.S. Department of
Energy under Contract DE-AC05-76RL01830. We would like to thank Dr.
Kenneth Jarman for carefully proofreading the manuscript. The research
was performed using PNNL Institutional Computing, as well as the
National Energy Research Scientific Computing Center at Lawrence
Berkeley National Laboratory.
NR 54
TC 2
Z9 2
U1 0
U2 20
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0045-7930
EI 1879-0747
J9 COMPUT FLUIDS
JI Comput. Fluids
PD NOV 1
PY 2014
VL 103
BP 204
EP 214
DI 10.1016/j.compfluid.2014.07.027
PG 11
WC Computer Science, Interdisciplinary Applications; Mechanics
SC Computer Science; Mechanics
GA AR1PT
UT WOS:000343357800017
ER
PT J
AU Marks, NE
Borg, LE
Hutcheon, ID
Jacobsen, B
Clayton, RN
AF Marks, N. E.
Borg, L. E.
Hutcheon, I. D.
Jacobsen, B.
Clayton, R. N.
TI Samarium-neodymium chronology and rubidium-strontium systematics of an
Allende calcium-aluminum-rich inclusion with implications for Sm-146
half-life
SO EARTH AND PLANETARY SCIENCE LETTERS
LA English
DT Article
DE CAIs; Sm-Nd; Rb-Sr; initial Solar System Sm-146/Sm-144; Sm-146 half-life
ID ANGRA-DOS-REIS; ND ISOTOPIC EVOLUTION; SOLAR-SYSTEM; CARBONACEOUS
CHONDRITES; PROTOPLANETARY DISK; INITIAL SR-87/SR-86; EARLY HISTORY; SM;
AGES; SR
AB Calcium-aluminum-rich inclusions (CAIs) are primitive objects that formed within the protoplanetary disk surrounding the young Sun. Recent Pb-Pb chronologic studies have demonstrated that CAIs are the oldest solar system solids, crystallizing 4567 Ma ago (Amelin et al., 2002; Connelly et al., 2012). The isotope systematics of CAIs therefore provide critical insight into the earliest history of the Solar System. Although Sm-Nd and Rb-Sr geochronometers are highly effective tools for investigating cosmochemical evolution in the early Solar System, previous studies of CAIs have revealed evidence for isotopically disturbed systems. Here we report new age data for Allende CAI Al3S4 derived from both the long-lived (Sm-147-Nd-143) and short-lived (Sm-146-Nd-142) isotopic systems. The Sm-147-Nd-143 chronometer yields an age of 4560 +/- 34 Ma that is concordant with Pb-207-Pb-206 ages for CAIs and indicates that the Sm-Nd system was not significantly disturbed by secondary alteration or nucleosynthetic processes. The slope of the Sm-146-Nd-142 isochron defines the Solar System initial Sm-146/Sm-144 of 0.00828 +/- 0.00044. This value is significantly different from the value of 0.0094 determined by Kinoshita et al. (2012). Ages recalculated from all published Sm-146-Nd-142 isochron data using the traditional 103 Ma half-life and the initial Sm-146/Sm-144 value determined here closely match Pb-Pb and Sm-147-Nd-143 ages determined on the same samples. In contrast, ages recalculated using the 68 Ma half-life determined by Kinoshita et al. (2012) and either of the initial Sm-146/Sm-144 values are often anomalously old. This is particularly true for the youngest samples with Sm-146-Nd-142 isochron ages that are most sensitive to the choice of Sm-146 half-life used in the age calculation. In contrast to the Sm-Nd isotope system, the Rb-Sr system is affected by alteration but yields an apparent isochron with a slope corresponding to a much younger age of 4247 +/- 110 Ma. Although the Rb-Sr system in CAIs appears to be disturbed, the initial Sr-87/Sr-86 value determined from the isochron is 0.698942 +/- 0.000008, and closely approximates estimates of the initial Solar System value. Although this isochron may be a mixing line, it might also record alteration on the Allende parent body in which Rb was added to the Al3S4 CAI that was initially largely devoid of Rb. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Marks, N. E.; Borg, L. E.; Hutcheon, I. D.; Jacobsen, B.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Clayton, R. N.] Univ Chicago, Chicago, IL 60637 USA.
RP Marks, NE (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave L-231, Livermore, CA 94551 USA.
EM marks23@llnl.gov
OI Marks, Naomi/0000-0002-4737-9877
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; NASA Origins of Solar Systems [NNH10AO05I]; NASA
Cosmochemistry [NNH12AT841, NNH10AO48I]
FX This contribution is dedicated to Toshiko K. Mayeda. Without her
invaluable contributions this project would not have been possible. We
thank T. Kleine and two anonymous reviewers for valuable comments. This
work was performed under the auspices of the US Department of Energy by
Lawrence Livermore National Laboratory under contract number
DE-AC52-07NA27344. The portion of the work performed at Lawrence
Livermore National Laboratory was supported by NASA Origins of Solar
Systems grant NNH10AO05I (P.I. Hutcheon) and NASA Cosmochemistry grants
NNH12AT841 (P.I. Borg) and NNH10AO48I (P.I. Hutcheon).
NR 66
TC 20
Z9 20
U1 5
U2 26
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0012-821X
EI 1385-013X
J9 EARTH PLANET SC LETT
JI Earth Planet. Sci. Lett.
PD NOV 1
PY 2014
VL 405
BP 15
EP 24
DI 10.1016/j.epsl.2014.08.017
PG 10
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA AR5LF
UT WOS:000343625500002
ER
PT J
AU Kelley, SE
Kaplan, MR
Schaefer, JM
Andersen, BG
Barrell, DJA
Putnam, AE
Denton, GH
Schwartz, R
Finkel, RC
Doughty, AM
AF Kelley, Samuel E.
Kaplan, Michael R.
Schaefer, Joerg M.
Andersen, Bjorn G.
Barrell, David J. A.
Putnam, Aaron E.
Denton, George H.
Schwartz, Roseanne
Finkel, Robert C.
Doughty, Alice M.
TI High-precision Be-10 chronology of moraines in the Southern Alps
indicates synchronous cooling in Antarctica and New Zealand 42,000 years
ago
SO EARTH AND PLANETARY SCIENCE LETTERS
LA English
DT Article
DE Be-10 surface-exposure dating; LGM; MIS 3; Southern Hemisphere; westerly
wind field; New Zealand
ID LAST GLACIAL MAXIMUM; PRODUCTION-RATE CALIBRATION; CLIMATE VARIABILITY;
ATMOSPHERIC CO2; RAKAIA VALLEY; DEGLACIATION; TERMINATION; GREENLAND;
HOLOCENE; ISLAND
AB Millennial-scale temperature variations in Antarctica during the period 80,000 to 18,000 years ago are known to anti-correlate broadly with winter-centric cold-warm episodes revealed in Greenland ice cores. However, the extent to which climate fluctuations in the Southern Hemisphere beat in time with Antarctica, rather than with the Northern Hemisphere, has proved a controversial question. In this study we determine the ages of a prominent sequence of glacial moraines in New Zealand and use the results to assess the phasing of millennial climate change. Forty-four Be-10 cosmogenic surface-exposure ages of boulders deposited by the Pukaki glacier in the Southern Alps document four moraine-building events from Marine Isotope Stage 3 (MIS 3) through to the end of the Last Glacial Maximum (similar to 18,000 years ago; LGM). The earliest moraine-building event is defined by the ages of nine boulders on a belt of moraine that documents the culmination of a glacier advance 42,000 years ago. At the Pukaki locality this advance was of comparable scale to subsequent advances that, from the remaining exposure ages, occurred between 28,000 and 25,000, at 21,000, and at 18,000 years ago. Collectively, all four moraine-building events represent the LGM. The glacier advance 42,000 years ago in the Southern Alps coincides in Antarctica with a cold episode, shown by the isotopic record from the EPICA Dome C ice core, between the prominent A1 and A2 warming events. Therefore, the implication of the Pukaki glacier record is that as early as 42,000 years ago an episode of glacial cold similar to that of the LGM extended in the atmosphere from high on the East Antarctic plateau to at least as far north as the Southern Alps (similar to 44 degrees S). Such a cold episode is thought to reflect the translation through the atmosphere and/or the ocean of the anti-phased effects of Northern Hemisphere interstadial conditions to the southern half of the Southern Hemisphere. Regardless of the mechanism, any explanation for the cold episode at 42,000 years ago must account for its widespread atmospheric footprint not only in Antarctica but also within the westerly wind belt in southern mid-latitudes. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Kelley, Samuel E.; Denton, George H.] Univ Maine, Dept Earth Sci, Orono, ME 04469 USA.
[Kelley, Samuel E.; Denton, George H.] Univ Maine, Climate Change Inst, Orono, ME 04469 USA.
[Kaplan, Michael R.; Schaefer, Joerg M.; Putnam, Aaron E.; Schwartz, Roseanne] Lamont Doherty Earth Observ, Palisades, NY 10964 USA.
[Andersen, Bjorn G.] Univ Oslo, Dept Geosci, Oslo, Norway.
[Barrell, David J. A.] GNS Sci, Dunedin, New Zealand.
[Finkel, Robert C.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Doughty, Alice M.] Dartmouth Coll, Dept Earth Sci, Hanover, NH 03750 USA.
RP Kelley, SE (reprint author), SUNY Buffalo, Dept Geol, 411 Cooke Hall, Buffalo, NY 14260 USA.
EM Samuelke@buffalo.edu
RI Kaplan, Michael/D-4720-2011;
OI Putnam, Aaron/0000-0002-5358-1473
FU Corner Science and Education Foundation (CSEF); National Oceanic and
Atmospheric Administration (NOAA); National Science Foundation
[EAR-110278, EAR-0745781]; New Zealand Government through the GNS
Science 'Global Change through Time' research programme; University of
Maine, Climate Change Institute Fellowship [7821]
FX This work was supported by funding from the Corner Science and Education
Foundation (CSEF), the National Oceanic and Atmospheric Administration
(NOAA), and by National Science Foundation grants EAR-110278 and
EAR-0745781. D. Barrell was supported by funding from the New Zealand
Government through the GNS Science 'Global Change through Time' research
programme. We are grateful to J. Frisch and D. Sprecher for assistance
with laboratory work and to T. and K. Ritchie of Lake Ruataniwha Holiday
Park for a home away from home during long field seasons. We thank the
owners and caretakers of Braemar Station, Mt. Cook Station, Irishman
Creek Station, Balmoral Station, Tasman Downs Station, and the New
Zealand Defence Force for granting access to their land. S.E.K. was
supported by a University of Maine, Climate Change Institute Fellowship.
This paper is LDEO contribution no. 7821.
NR 66
TC 9
Z9 9
U1 5
U2 32
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0012-821X
EI 1385-013X
J9 EARTH PLANET SC LETT
JI Earth Planet. Sci. Lett.
PD NOV 1
PY 2014
VL 405
BP 194
EP 206
DI 10.1016/j.epsl.2014.07.031
PG 13
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA AR5LF
UT WOS:000343625500017
ER
PT J
AU Griffiths, NA
Hill, WR
AF Griffiths, Natalie A.
Hill, Walter R.
TI Temporal Variation in the Importance of a Dominant Consumer to Stream
Nutrient Cycling
SO ECOSYSTEMS
LA English
DT Article
DE consumer; snails; excretion; nutrient spiraling; nitrogen; phosphorus;
ammonium; uptake rate; stream; temporal variation
ID AGRICULTURAL LAND-USE; WOODLAND STREAM; BENTHIC INVERTEBRATES; ECOSYSTEM
RESPONSES; PRIMARY PRODUCERS; PHOSPHORUS; NITROGEN; EXCRETION;
STOICHIOMETRY; FISH
AB Animal excretion can be a significant nutrient flux within ecosystems, where it supports primary production and facilitates microbial decomposition of organic matter. The effects of excretory products on nutrient cycling have been documented for various species and ecosystems, but temporal variation in these processes is poorly understood. We examined variation in excretion rates of a dominant grazing snail, Elimia clavaeformis, and its contribution to nutrient cycling, over the course of 14 months in a well-studied, low-nutrient stream (Walker Branch, east Tennessee, USA). Biomass-specific excretion rates of ammonium varied over twofold during the study, coinciding with seasonal changes in food availability (measured as gross primary production) and water temperature (multiple linear regression, R-2 = 0.57, P = 0.053). The contribution of ammonium excretion to nutrient cycling varied with seasonal changes in both biological (that is, nutrient uptake rate) and physical (that is, stream flow) variables. On average, ammonium excretion accounted for 58% of stream water ammonium concentrations, 26% of whole-stream nitrogen demand, and 66% of autotrophic nitrogen uptake. Phosphorus excretion by Elimia was contrastingly low throughout the year, supplying only 1% of total dissolved phosphorus concentrations. The high average N: P ratio (89: 1) of snail excretion likely exacerbated phosphorus limitation in Walker Branch. To fully characterize animal excretion rates and effects on ecosystem processes, multiple measurements through time are necessary, especially in ecosystems that experience strong seasonality.
C1 [Griffiths, Natalie A.] Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA.
[Griffiths, Natalie A.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Hill, Walter R.] Univ Illinois, Illinois Nat Hist Survey, Champaign, IL 61821 USA.
[Hill, Walter R.] Univ Illinois, Prairie Res Inst, Champaign, IL 61821 USA.
RP Griffiths, NA (reprint author), Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA.
EM griffithsna@ornl.gov
OI Griffiths, Natalie/0000-0003-0068-7714
FU U.S. Department of Energy's Office of Science, Biological and
Environmental Research; U.S. Department of Energy [DE-AC05-00OR22725];
ORNL Postdoctoral Research Associates Program
FX We are grateful to the late Pat Mulholland for his advice, mentoring,
and friendship. We thank D. Brice, J. Childs, A. Fortner, and K.
McCracken for technical assistance. Comments by R. McManamay, A.
Stewart, and two anonymous reviewers greatly improved an earlier version
of this manuscript. This research was part of the Long-term Walker
Branch Watershed project and supported by the U.S. Department of
Energy's Office of Science, Biological and Environmental Research. Oak
Ridge National Laboratory is managed by UT-Battelle, LLC, for the U.S.
Department of Energy under contract DE-AC05-00OR22725. N. Griffiths was
partially supported by a postdoctoral fellowship through the ORNL
Postdoctoral Research Associates Program administered by Oak Ridge
Associated Universities.
NR 64
TC 1
Z9 1
U1 8
U2 44
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1432-9840
EI 1435-0629
J9 ECOSYSTEMS
JI Ecosystems
PD NOV
PY 2014
VL 17
IS 7
BP 1169
EP 1185
DI 10.1007/s10021-014-9785-1
PG 17
WC Ecology
SC Environmental Sciences & Ecology
GA AR6UF
UT WOS:000343717900004
ER
PT J
AU Shao, JJ
Zhou, XH
He, HL
Yu, GR
Wang, HM
Luo, YQ
Chen, JK
Gu, LH
Li, B
AF Shao, Junjiong
Zhou, Xuhui
He, Honglin
Yu, Guirui
Wang, Huimin
Luo, Yiqi
Chen, Jiakuan
Gu, Lianhong
Li, Bo
TI Partitioning Climatic and Biotic Effects on Interannual Variability of
Ecosystem Carbon Exchange in Three Ecosystems
SO ECOSYSTEMS
LA English
DT Article
DE biotic effects; climatic effects; eddy covariance; interannual
variability; net ecosystem exchange; relative contribution
ID EVERGREEN CONIFEROUS PLANTATION; ATMOSPHERE CO2 EXCHANGE; DECIDUOUS
FOREST; ENVIRONMENTAL CONTROLS; TERRESTRIAL BIOSPHERE; DIOXIDE EXCHANGE;
GRASS PRAIRIE; EDDY FLUX; RESPIRATION; CHINA
AB Understanding the climatic and biotic controls of interannual variability (IAV) in net ecosystem exchange (NEE) is important for projecting future uptake of CO2 in terrestrial ecosystems. In this study, a statistical modeling approach was used to partition climatic and biotic effects on the IAV in NEE, gross primary productivity (GPP) and ecosystem respiration (RE) at a subtropical evergreen plantation in China (QYZ), a deciduous forest (MOZ), and a grassland (DK1) in the USA. The climatic effects in the study are defined as the interannual anomalies in carbon (C) fluxes directly caused by climatic variations, whereas the biotic effects are those caused by the IAV in photosynthetic and respiratory traits. The results showed that the contribution of biotic effects to the IAV in NEE increased significantly as the temporal scale got longer from daily to annual scales. At the annual scale, the contribution of biotic effects to the IAV in NEE was 47, 69, and 77% at QYZ, MOZ, and DK1, respectively. However, the IAV in NEE was mainly controlled by GPP at QYZ, and by RE at DK1, whereas the contributions of GPP and RE to the IAV in NEE were similar at MOZ, indicating different mechanisms regulating the IAV in NEE among ecosystems. Interestingly, there was a strong negative correlation between the climatic and biotic effects at the annual scale from 2003 to 2009 at QYZ (r(2) = 0.80, P < 0.01), suggesting these two effects counteracted each other and resulted in a relatively stable C sink, whereas no correlations were found at the other two sites. Overall, our study revealed the relative importance of climatic and biotic effects on the IAV in NEE and contributed to our understanding of their underlying mechanisms.
C1 [Shao, Junjiong; Zhou, Xuhui; Luo, Yiqi; Chen, Jiakuan; Li, Bo] Fudan Univ, Inst Biodivers Sci, Coastal Ecosyst Res Stn Yangtze River Estuary, Minist Educ,Key Lab Biodivers Sci & Ecol Engn, Shanghai 200433, Peoples R China.
[Shao, Junjiong; He, Honglin; Yu, Guirui; Wang, Huimin] Chinese Acad Sci, Inst Geog Sci & Nat Resource Res, Beijing 100101, Peoples R China.
[Luo, Yiqi] Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA.
[Gu, Lianhong] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Zhou, XH (reprint author), Fudan Univ, Inst Biodivers Sci, Coastal Ecosyst Res Stn Yangtze River Estuary, Minist Educ,Key Lab Biodivers Sci & Ecol Engn, 220 Handan Rd, Shanghai 200433, Peoples R China.
EM zxuhui14@fudan.edu.cn; yugr@igsnrr.ac.cn
RI 于, 贵瑞/C-1768-2014; Li, Bo/B-8016-2010; Zhou, Xuhui/H-4332-2011; Shao,
Junjiong/G-1010-2016; Gu, Lianhong/H-8241-2014
OI Li, Bo/0000-0002-0439-5666; Gu, Lianhong/0000-0001-5756-8738
FU National Basic Research Program of China [2010CB833504]; National
Natural Science Foundation of China [31070407, 31370489]; Shanghai
Pujiang Program [12PJ1401400]; "Thousand Young Talents" Program in
China; Program for Professor of Special Appointment (Eastern Scholar) at
Shanghai Institutions of Higher Learning
FX The authors thank the two anonymous reviewers for their insightful
comments and suggestions. This research was financially supported by the
National Basic Research Program of China (2010CB833504), the National
Natural Science Foundation of China (31070407, 31370489), 2012 Shanghai
Pujiang Program (12PJ1401400), "Thousand Young Talents" Program in
China, and The Program for Professor of Special Appointment (Eastern
Scholar) at Shanghai Institutions of Higher Learning.
NR 67
TC 6
Z9 6
U1 4
U2 64
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1432-9840
EI 1435-0629
J9 ECOSYSTEMS
JI Ecosystems
PD NOV
PY 2014
VL 17
IS 7
BP 1186
EP 1201
DI 10.1007/s10021-014-9786-0
PG 16
WC Ecology
SC Environmental Sciences & Ecology
GA AR6UF
UT WOS:000343717900005
ER
PT J
AU Qu, M
Abdelaziz, O
Yin, HX
AF Qu, Ming
Abdelaziz, Omar
Yin, Hongxi
TI New configurations of a heat recovery absorption heat pump integrated
with a natural gas boiler for boiler efficiency improvement
SO ENERGY CONVERSION AND MANAGEMENT
LA English
DT Article
DE Natural gas boiler; Absorption heat pump; Heat recovery; Dew point; Flue
gas; System configuration
ID PERFORMANCE; SYSTEM; STATE; LIBR
AB Conventional natural gas-fired boilers exhaust flue gas direct to the atmosphere at 150-200 degrees C, which, at such temperatures, contains large amount of energy and results in relatively low thermal efficiency ranging from 70% to 80%. Although condensing boilers for recovering the heat in the flue gas have been developed over the past 40 years, their present market share is still less than 25%. The major reason for this relatively slow acceptance is the limited improvement in the thermal efficiency of condensing boilers. In the condensing boiler, the temperature of the hot water return at the range of 50-60 degrees C, which is used to cool the flue gas, is very close to the dew point of the water vapor in the flue gas. Therefore, the latent heat, the majority of the waste heat in the flue gas, which is contained in the water vapor, cannot be recovered. This paper presents a new approach to improve boiler thermal efficiency by integrating absorption heat pumps with natural gas boilers for waste heat recovery (HRAHP). Three configurations of HRAHPs are introduced and discussed. The three configurations are modeled in detail to illustrate the significant thermal efficiency improvement they attain. Further, for conceptual proof and validation, an existing hot water-driven absorption chiller is operated as a heat pump at operating conditions similar to one of the devised configurations. An overall system performance and economic analysis are provided for decision-making and as evidence of the potential benefits. These three configurations of HRAHP provide a pathway to achieving realistic high-efficiency natural gas boilers for applications with process fluid return temperatures higher than or close to the dew point of the water vapor in the flue gas. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Qu, Ming] Purdue Univ, Sch Civil Engn, W Lafayette, IN 47906 USA.
[Abdelaziz, Omar] Oak Ridge Natl Lab, Energy & Transportat Sci Div, Oak Ridge, TN 37831 USA.
[Yin, Hongxi] Southeast Univ, Sch Architecture, Nanjing 210096, Jiangsu, Peoples R China.
RP Qu, M (reprint author), Purdue Univ, Sch Civil Engn, 550 Stadium Mall Dr, W Lafayette, IN 47907 USA.
EM mqu@purdue.edu
RI Abdelaziz, Omar/O-9542-2015
OI Abdelaziz, Omar/0000-0002-4418-0125
FU U.S. DOE Visiting Faculty Program
FX This research was funded by the U.S. DOE Visiting Faculty Program. We
thank Patricia W. Garland, Nasr E. Alkadi, Sachin U. Nimbalkar, and
James R. Keiser from the Oak Ridge National Laboratory for enlightening
discussions and for leveraging the authors' technical expertise during
this research project.
NR 27
TC 18
Z9 20
U1 5
U2 33
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0196-8904
EI 1879-2227
J9 ENERG CONVERS MANAGE
JI Energy Conv. Manag.
PD NOV
PY 2014
VL 87
BP 175
EP 184
DI 10.1016/j.enconman.2014.06.083
PG 10
WC Thermodynamics; Energy & Fuels; Mechanics
SC Thermodynamics; Energy & Fuels; Mechanics
GA AR1HV
UT WOS:000343337200018
ER
PT J
AU Zhang, J
Chowdhury, S
Messac, A
Hodge, BM
AF Zhang, Jie
Chowdhury, Souma
Messac, Achille
Hodge, Bri-Mathias
TI A hybrid measure-correlate-predict method for long-term wind condition
assessment
SO ENERGY CONVERSION AND MANAGEMENT
LA English
DT Article
DE Measure-correlate-predict (MCP); Power generation; Wind resource
assessment; Wind distribution; Wind energy
ID SUPPORT VECTOR MACHINES; SPEED PREDICTION; ENERGY; MODEL; SITE
AB This paper develops a hybrid measure-correlate-predict (MCP) strategy to assess long-term wind resource variations at a farm site. The hybrid MCP method uses recorded data from multiple reference stations to estimate long-term wind conditions at a target wind plant site with greater accuracy than is possible with data from a single reference station. The weight of each reference station in the hybrid strategy is determined by the (i) distance and (ii) elevation differences between the target farm site and each reference station. In this case, the wind data is divided into sectors according to the wind direction, and the MCP strategy is implemented for each wind direction sector separately. The applicability of the proposed hybrid strategy is investigated using five MCP methods: (i) the linear regression; (ii) the variance ratio; (iii) the Weibull scale; (iv) the artificial neural networks; and (v) the support vector regression. To implement the hybrid MCP methodology, we use hourly averaged wind data recorded at five stations in the state of Minnesota between 07-01-1996 and 06-30-2004. Three sets of performance metrics are used to evaluate the hybrid MCP method. The first set of metrics analyze the statistical performance, including the mean wind speed, wind speed variance, root mean square error, and mean absolute error. The second set of metrics evaluate the distribution of long-term wind speed; to this end, the Weibull distribution and the Multivariate and Multimodal Wind Distribution models are adopted. The third set of metrics analyze the energy production of a wind farm. The best hybrid MCP strategy from 256 different combinations of MCP algorithms and reference stations is investigated and selected. The results illustrate that the many-to-one correlation in such a hybrid approach can provide a more reliable prediction of long-term on-site wind variations than that provided by the one-to-one correlations. The accuracy of the hybrid MCP method is found to be highly sensitive to the combination of individual MCP algorithms and reference stations used. It is also observed that the best combination of MCP algorithms is influenced by the length of the concurrent short-term correlation period. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Zhang, Jie; Hodge, Bri-Mathias] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Chowdhury, Souma; Messac, Achille] Mississippi State Univ, Mississippi State, MS 39762 USA.
RP Zhang, J (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM jie.zhang@nrel.gov
FU National Science Foundation [CMMI-1100948, CMMI-1437746]; U.S.
Department of Energy [DE-AC36-08-GO28308]; National Renewable Energy
Laboratory
FX Support from the National Science Foundation Awards CMMI-1100948 and
CMMI-1437746 is gratefully acknowledged. Any opinions, findings,
conclusions, or recommendations expressed in this paper are those of the
authors and do not necessarily reflect the views of the NSF. This work
was also supported by the U.S. Department of Energy under Contract No.
DE-AC36-08-GO28308 with the National Renewable Energy Laboratory.
NR 41
TC 3
Z9 4
U1 1
U2 10
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0196-8904
EI 1879-2227
J9 ENERG CONVERS MANAGE
JI Energy Conv. Manag.
PD NOV
PY 2014
VL 87
BP 697
EP 710
DI 10.1016/j.enconman.2014.07.057
PG 14
WC Thermodynamics; Energy & Fuels; Mechanics
SC Thermodynamics; Energy & Fuels; Mechanics
GA AR1HV
UT WOS:000343337200072
ER
PT J
AU Kozarac, D
Vuilleumier, D
Saxena, S
Dibble, RW
AF Kozarac, Darko
Vuilleumier, David
Saxena, Samveg
Dibble, Robert W.
TI Analysis of benefits of using internal exhaust gas recirculation in
biogas-fueled HCCI engines
SO ENERGY CONVERSION AND MANAGEMENT
LA English
DT Article
DE Biogas; HCCI; Internal EGR; Simulation
ID POWER-GENERATION; PERFORMANCE; STRATEGIES; COMBUSTION; OPERATION
AB This paper describes a numerical study that analyzed the influence of combustion products (CP) concentration on the combustion characteristics (combustion timing and combustion duration) of a biogas fueled homogeneous charge compression ignition (HCCI) engine and the possibility of reducing the high intake temperature requirement necessary for igniting biogas in a HCCI engine by using internal exhaust gas recirculation (EGR) enabled by negative valve overlap (NVO). An engine model created in AVL Boost, and validated against experimental engine data, was used in this study. The results show, somewhat counter-intuitively, that when CP concentrations are increased the required intake temperature for maintaining the same combustion timing must be increased. When greater NVO is used to increase the in-cylinder CP concentration, the in-cylinder temperature does increase, but the chemical dilution influence of CP almost entirely counteracts this thermal effect. Additionally, it has been observed that with larger fractions of CP some instability of combustion in the calculation was obtained which indicates that the increase of internal EGR might produce some combustion instability. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Kozarac, Darko; Vuilleumier, David; Dibble, Robert W.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
[Saxena, Samveg] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Kozarac, D (reprint author), Univ Zagreb, Fac Mech Engn & Naval Architecture, Ivana Lucica 5, Zagreb 10000, Croatia.
EM darko.kozarac@fsb.hr; david.vuilleumier@berkeley.edu;
samveg@berkeley.edu; dokdibble@gmail.com
NR 22
TC 15
Z9 15
U1 3
U2 9
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0196-8904
EI 1879-2227
J9 ENERG CONVERS MANAGE
JI Energy Conv. Manag.
PD NOV
PY 2014
VL 87
BP 1186
EP 1194
DI 10.1016/j.enconman.2014.04.085
PG 9
WC Thermodynamics; Energy & Fuels; Mechanics
SC Thermodynamics; Energy & Fuels; Mechanics
GA AR1HV
UT WOS:000343337200123
ER
PT J
AU Zheng, GY
Xu, XQ
Ryutov, DD
Pan, YD
Xia, TY
AF Zheng, G. Y.
Xu, X. Q.
Ryutov, D. D.
Pan, Y. D.
Xia, T. Y.
TI Magnetic configuration flexibility of snowflake divertor for HL-2M
SO FUSION ENGINEERING AND DESIGN
LA English
DT Article
DE Snowflake divertor; Poloidal field; Magnetic field shear; Tripod
divertor
ID PHYSICS; ITER
AB HL-2M (Li, 2013 [1]) is a tokamak device that is under construction. Based on the magnetic coils design of HL-2M, four kinds of divertor configurations are calculated by CORSICA code (PearIstein et al., 2001 [2]) with the same main plasma parameters, which are standard divertor, exact snowflake divertor, snowflake-plus divertor and snowflake-minus divertor configurations. The potential properties of these divertors are analyzed and presented in this paper: low poloidal field area around X-point, connection length from outside mid-plane to the primary X-point, target plate design and magnetic field shear. The results show that the snowflake configurations not only can reduce the heat load at divertor target plates, but also may improve the magneto-hydrodynamic stability by stronger magnetic shear at the edge. A new divertor configuration, named "tripod divertor", is designed by adjusting the positions of the two X-points according to plasma parameters and magnetic coils current of HL-2M. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Zheng, G. Y.; Pan, Y. D.] Southwestern Inst Phys, Chengdu, Peoples R China.
[Zheng, G. Y.; Xu, X. Q.; Ryutov, D. D.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Xia, T. Y.] Chinese Acad Sci, Inst Plasma Phys, Hefei, Peoples R China.
RP Zheng, GY (reprint author), Southwestern Inst Phys, Chengdu, Peoples R China.
EM zgy@swip.ac.cn
FU Chinese ITER Plan Project Foundation [2013GB113001]; National Natural
Science Foundation of China [11275061, 11175058]; LLNL for USDOE
[DE-AC52-07NA27344 (LLNL-JRNL-651522)]
FX The authors wish to acknowledge Drs. R.H. Bulmer, M.V. Umansky, and G.Q
Li for their valuable suggestions, advice and timely help for using
CORSICA code during this research. Many thanks in particular to Drs. Y.
Liu and X.R. Duan for their support and encouragement for US-China
International Collaboration project. This work was supported by Chinese
ITER Plan Project Foundation (grant no. 2013GB113001), National Natural
Science Foundation of China (grant nos. 11275061 and 11175058), and by
LLNL for USDOE under DE-AC52-07NA27344 (LLNL-JRNL-651522).
NR 20
TC 6
Z9 6
U1 0
U2 8
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0920-3796
EI 1873-7196
J9 FUSION ENG DES
JI Fusion Eng. Des.
PD NOV
PY 2014
VL 89
IS 11
BP 2621
EP 2627
DI 10.1016/j.fusengdes.2014.06.014
PG 7
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AR5KD
UT WOS:000343622800016
ER
PT J
AU Clark, AW
Doumet, M
Hammond, KC
Kornbluth, Y
Spong, DA
Sweeney, R
Volpe, FA
AF Clark, A. W.
Doumet, M.
Hammond, K. C.
Kornbluth, Y.
Spong, D. A.
Sweeney, R.
Volpe, F. A.
TI Proto-CIRCUS tilted-coil tokamak-torsatron hybrid: Design and
construction
SO FUSION ENGINEERING AND DESIGN
LA English
DT Article
DE Stellarator; Electron cyclotron resonance; Interlinked coils; Rotational
transform; Tilted coils
ID STELLARATORS
AB We present the field-line modeling, design, and construction of a prototype circular-coil tokamak-torsatron hybrid called Proto-CIRCUS. The device has a major radius R = 16 cm and minor radius a < 5 cm. The six "toroidal field" coils are planar as in a tokamak, but they are tilted. This, combined with induced or driven plasma current, is expected to generate rotational transform, as seen in field-line tracing and equilibrium calculations. The device is expected to operate at lower plasma current than a tokamak of comparable size and magnetic field, which might have interesting implications for disruptions and steady-state operation. Additionally, the toroidal magnetic ripple is less pronounced than in an equivalent tokamak in which the coils are not tilted. The tilted coils are interlocked, resulting in a relatively low aspect ratio, and can be moved, both radially and in tilt angle, between discharges. This capability will be exploited for detailed comparisons between calculations and field-line mapping measurements. Such comparisons will reveal whether this relatively simple concept can generate the expected rotational transform. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Clark, A. W.; Doumet, M.; Hammond, K. C.; Sweeney, R.; Volpe, F. A.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA.
[Kornbluth, Y.] Yeshiva Univ, New York, NY 10033 USA.
[Spong, D. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA.
RP Volpe, FA (reprint author), Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA.
EM fvolpe@columbia.edu
RI Volpe, Francesco/D-2994-2009;
OI Volpe, Francesco/0000-0002-7193-7090; Hammond,
Kenneth/0000-0002-1104-4434
NR 12
TC 1
Z9 1
U1 0
U2 2
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0920-3796
EI 1873-7196
J9 FUSION ENG DES
JI Fusion Eng. Des.
PD NOV
PY 2014
VL 89
IS 11
BP 2732
EP 2737
DI 10.1016/j.fusengdes.2014.07.012
PG 6
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AR5KD
UT WOS:000343622800030
ER
PT J
AU Mumgaard, RT
Vieira, R
Parkin, W
Scott, SD
AF Mumgaard, R. T.
Vieira, R.
Parkin, W.
Scott, S. D.
TI A small, novel, remote in-vessel inspection system for the Alcator C-Mod
tokamak
SO FUSION ENGINEERING AND DESIGN
LA English
DT Article
DE Inspection; Tomakak; Remote handling; Cameras; Alcator C-Mod
ID VACUUM
AB A small robust system has been constructed for in-situ visual inspection of the Alcator C-Mod tokamak. The system consists of a small, light, wide-angle high definition camera and LED package housed in a nacelle on the end of thin, rigid, 3.5 m long support pole. The nacelle has two actuated degrees of freedom allowing the camera to observe nearly 4 pi steradians. The support pole has a specific slight curve that allows it to pass to either side of the center column of the tokamak to observe the entirety of the vessel interior, while still fitting through the small aspect ratio Alcator C-Mod vacuum port structure. The support pole and camera can enter the vessel through any horizontal vacuum port with an inner diameter greater than 4cm, thus a dedicated port is not required. The inspection is typically undertaken during maintenance periods when the vessel is filled with a noble gas near atmospheric pressure thus minimizing the influx of water vapor and the concomitant loss of wall conditioning. The system is operated manually, producing photos and video which are reviewed in near real-time. Nearly the entire vessel, including the plasma facing components, can be carefully inspected in 3-5 h. The system provides improved characterization of the interior components and surfaces of the tokamak with a modest engineering and operational effort. Information gathered from the system has identified damage to plasma facing components that were interfering with tokamak operation, as well as damage to mechanical components which were redesigned during the remainder of the campaign, thereby enhancing program planning. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Mumgaard, R. T.; Vieira, R.; Parkin, W.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
[Scott, S. D.] Princeton Plasma Phys Lab, Princeton, NJ USA.
RP Mumgaard, RT (reprint author), MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
FU US DOE [DE-FC02-99ER54512]
FX This work was supported by US DOE award DE-FC02-99ER54512.
NR 11
TC 1
Z9 1
U1 2
U2 4
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0920-3796
EI 1873-7196
J9 FUSION ENG DES
JI Fusion Eng. Des.
PD NOV
PY 2014
VL 89
IS 11
BP 2784
EP 2788
DI 10.1016/j.fusengdes.2014.08.003
PG 5
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AR5KD
UT WOS:000343622800038
ER
PT J
AU Liese, E
AF Liese, Eric
TI Modeling of a Steam Turbine Including Partial Arc Admission for Use in a
Process Simulation Software Environment
SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE
ASME
LA English
DT Article
AB A dynamic process model of a steam turbine, including partial arc admission operation, is presented. Models were made for the first stage and last stage, with the middle stages assumed to have a constant pressure ratio and efficiency. A condenser model is also presented. The paper discusses the function and importance of the steam turbine's entrance design and the first stage. The results for steam turbines with a partial arc entrance are shown and compare well with experimental data available in the literature; in particular, the "valve loop" behavior as the steam flow rate is reduced. This is important to model correctly since it significantly influences the downstream state variables of the steam, and thus the characteristic of the entire steam turbine, e. g., state conditions at extractions, overall turbine flow, and condenser behavior. The importance of the last stage (the stage just upstream of the condenser) in determining the overall flow rate and exhaust conditions to the condenser is described and shown via results.
C1 Natl Energy Technol Lab, Dept Energy, Morgantown, WV 26507 USA.
RP Liese, E (reprint author), Natl Energy Technol Lab, Dept Energy, 3610 Collins Ferry Rd, Morgantown, WV 26507 USA.
EM eric.liese@netl.doe.gov
NR 10
TC 0
Z9 0
U1 2
U2 7
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0742-4795
EI 1528-8919
J9 J ENG GAS TURB POWER
JI J. Eng. Gas. Turbines Power-Trans. ASME
PD NOV
PY 2014
VL 136
IS 11
AR 112605
DI 10.1115/1.4027255
PG 7
WC Engineering, Mechanical
SC Engineering
GA AR5ZI
UT WOS:000343661200020
ER
PT J
AU Senecal, PK
Pomraning, E
Anders, JW
Weber, MR
Gehrke, CR
Polonowski, CJ
Mueller, CJ
AF Senecal, P. K.
Pomraning, E.
Anders, J. W.
Weber, M. R.
Gehrke, C. R.
Polonowski, C. J.
Mueller, C. J.
TI Predictions of Transient Flame Lift-off Length With Comparison to
Single-Cylinder Optical Engine Experiments
SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE
ASME
LA English
DT Article
AB A state-of-the-art, grid-convergent simulation methodology was applied to three-dimensional calculations of a single-cylinder optical engine. A mesh resolution study on a sector-based version of the engine geometry further verified the RANS-based cell size recommendations previously presented by Senecal et al. ("Grid Convergent Spray Models for Internal Combustion Engine CFD Simulations," ASME Paper No. ICEF2012-92043). Convergence of cylinder pressure, flame lift-off length, and emissions was achieved for an adaptive mesh refinement cell size of 0.35 mm. Full geometry simulations, using mesh settings derived from the grid convergence study, resulted in excellent agreement with measurements of cylinder pressure, heat release rate, and NOx emissions. On the other hand, the full geometry simulations indicated that the flame lift-off length is not converged at 0.35 mm for jets not aligned with the computational mesh. Further simulations suggested that the flame lift-off lengths for both the nonaligned and aligned jets appear to be converged at 0.175 mm. With this increased mesh resolution, both the trends and magnitudes in flame lift-off length were well predicted with the current simulation methodology. Good agreement between the overall predicted flame behavior and the available chemiluminescence measurements was also achieved. The present study indicates that cell size requirements for accurate prediction of full geometry flame lift-off lengths may be stricter than those for global combustion behavior. This may be important when accurate soot predictions are required.
C1 [Senecal, P. K.; Pomraning, E.] Convergent Sci Inc, Middleton, WI 53562 USA.
[Anders, J. W.; Weber, M. R.; Gehrke, C. R.] Caterpillar Inc, Peoria, IL 61629 USA.
[Polonowski, C. J.; Mueller, C. J.] Sandia Natl Labs, Livermore, CA 94551 USA.
RP Senecal, PK (reprint author), Convergent Sci Inc, Middleton, WI 53562 USA.
EM senecal@convergecfd.com; pomraning@convergecfd.com; anders_jon@cat.com;
weber_marcus_r@cat.com; gehrke_christopher_r@cat.com; cpolonow@ford.com;
cjmuell@sandia.gov
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX The experimental research described herein was conducted at the
Combustion Research Facility, Sandia National Laboratories, Livermore,
CA. Sandia is a multiprogram laboratory operated by Sandia Corporation,
a Lockheed Martin Company, for the U.S. Department of Energy's National
Nuclear Security Administration, under Contract No. DE-AC04-94AL85000.
The authors would like to thank the support team at CEI, Inc., for their
help in automating the flame lift-off length calculations.
NR 28
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U1 2
U2 14
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0742-4795
EI 1528-8919
J9 J ENG GAS TURB POWER
JI J. Eng. Gas. Turbines Power-Trans. ASME
PD NOV
PY 2014
VL 136
IS 11
AR 111505
DI 10.1115/1.4027653
PG 19
WC Engineering, Mechanical
SC Engineering
GA AR5ZI
UT WOS:000343661200006
ER
PT J
AU Senecal, PK
Pomraning, E
Xue, Q
Som, S
Banerjee, S
Hu, B
Liu, K
Deur, JM
AF Senecal, P. K.
Pomraning, E.
Xue, Q.
Som, S.
Banerjee, S.
Hu, B.
Liu, K.
Deur, J. M.
TI Large Eddy Simulation of Vaporizing Sprays Considering Multi-Injection
Averaging and Grid-Convergent Mesh Resolution
SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE
ASME
LA English
DT Article
AB A state-of-the-art spray modeling methodology, recently presented by Senecal et al. (2012, "Grid Convergent Spray Models for Internal Combustion Engine CFD Simulations," Proceedings of the ASME 2012 Internal Combustion Engine Division Fall Technical Conference, Vancouver, Canada, Paper No. ICEF2012-92043; 2013 "An Investigation of Grid Convergence for Spray Simulations using an LES Turbulence Model," Paper No. SAE 2013-01-1083) is applied to large eddy simulations (LES) of vaporizing sprays. Simulations of noncombusting Spray A (n-dodecane fuel) from the engine combustion network are performed. An adaptive mesh refinement (AMR) cell size of 0.0625mm is utilized based on the accuracy/runtime tradeoff demonstrated by Senecal et al. (2013, "An Investigation of Grid Convergence for Spray Simulations using an LES Turbulence Model," Paper No. SAE 2013-01-1083). In that work, it was shown that grid convergence of key parameters for nonevaporating and evaporating sprays was achieved for cell sizes between 0.0625 and 0.125mm using the dynamic structure LES model. The current work presents an extended and more thorough investigation of Spray A using multidimensional spray modeling and the dynamic structure LES model. Twenty different realizations are simulated by changing the random number seed used in the spray submodels. Multirealization (ensemble) averaging is shown to be necessary when comparing to local spray measurements of quantities such as mixture fraction and gas-phase velocity. Through a detailed analysis, recommendations are made regarding the minimum number of LES realizations required for accurate prediction of diesel sprays. Finally, the effect of a spray primary breakup model constant on the results is assessed.
C1 [Senecal, P. K.; Pomraning, E.] Convergent Sci Inc, Middleton, WI 53562 USA.
[Xue, Q.; Som, S.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Banerjee, S.; Hu, B.; Liu, K.; Deur, J. M.] Cummins Inc, Columbus, IN 47201 USA.
RP Senecal, PK (reprint author), Convergent Sci Inc, Middleton, WI 53562 USA.
EM senecal@convergecfd.com; pomraning@convergecfd.com; qxue@anl.gov;
ssom@anl.gov; siddhartha.banerjee@cummins.com; bing.hu@cummins.com;
kai.liu@cummins.com; john.deur@cummins.com
FU U.S. Department of Energy Office of Science laboratory
[DE-AC02-06CH11357]
FX The submitted manuscript has been created in collaboration with UChicago
Argonne, LLC, operator of Argonne National Laboratory (Argonne).
Argonne, a U.S. Department of Energy Office of Science laboratory, is
operated under Contract No. DE-AC02-06CH11357. The U.S. Government
retains for itself, and others acting on its behalf, a paid-up,
nonexclusive, irrevocable worldwide license in said article to
reproduce, prepare derivative works, distribute copies to the public,
and perform publicly and display publicly, by or on behalf of the
Government. The authors would like to thank Shawn Givler for help in
processing the multiple realization data. The authors would also like to
thank Lyle Pickett of Sandia National Laboratories for many helpful
discussions. 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 22
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U1 2
U2 13
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0742-4795
EI 1528-8919
J9 J ENG GAS TURB POWER
JI J. Eng. Gas. Turbines Power-Trans. ASME
PD NOV
PY 2014
VL 136
IS 11
AR 111504
DI 10.1115/1.4027449
PG 13
WC Engineering, Mechanical
SC Engineering
GA AR5ZI
UT WOS:000343661200005
ER
PT J
AU Kurikami, H
Kitamura, A
Yokuda, ST
Onishi, Y
AF Kurikami, Hiroshi
Kitamura, Akihiro
Yokuda, Satoru Thomas
Onishi, Yasuo
TI Sediment and Cs-137 behaviors in the Ogaki Dam Reservoir during a heavy
rainfall event
SO JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
LA English
DT Article
DE Fukushima Daiichi NPP; Ogaki Dam Reservoir; Numerical modeling; Cesium;
Sediment; Heavy rainfall events
ID RADIONUCLIDES; MODELS
AB We performed a simulation of sediment and Cs-137 behaviors in the Ogaki Dam Reservoir, one of the main irrigation reservoirs in the Fukushima prefecture, japan, during a heavy rainfall event occurred in 2013. The one-dimensional river and reservoir simulation scheme TODAM, Time-dependent One-dimensional Degradation and Migration, was applied for calculating the time dependent migration of sediment and Cs-137 in dissolved and sediment-sorbed forms in the reservoir. Continuous observational data achieved in the upper rivers were used as the input boundary conditions for the simulation. The simulation results were compared with the continuous data achieved in the lower river and we confirmed the predicted values of sediment and Cs-137 in sediment-sorbed form at the exit of reservoir satisfactorily reproduced the observational data. We also performed sediment and Cs-137 behavioral simulation by changing the water level of the reservoir, because such a dam operation could control the quantities of sediment and Cs-137 discharge from and/or deposition in the reservoir. The simulation clarified that the reservoir played an important role to delay and buffer the movement of radioactive cesium in heavy rainfall events and the buffer effect of the reservoir depended on particle sizes of suspended sediment and the water level. It was also understood that silt deposition was the main source of the bed contamination (except for the initial fallout impact), while clay was the main carrier of Cs-137 to the lower river at a later stage of rainfall events. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Kurikami, Hiroshi; Kitamura, Akihiro] Japan Atom Energy Agcy, Sect Fukushima Res & Dev, Tokai, Ibaraki 3191194, Japan.
[Yokuda, Satoru Thomas; Onishi, Yasuo] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Kurikami, H (reprint author), Japan Atom Energy Agcy, Sect Fukushima Res & Dev, 4-33 Muramatsu, Tokai, Ibaraki 3191194, Japan.
EM kurikami.hiroshi@jaea.go.jp; kitamura.akihiro@jaea.go.jp;
satoru.yokuda@pnnl.gov; yasuo.onishi@pnnl.gov
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PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0265-931X
EI 1879-1700
J9 J ENVIRON RADIOACTIV
JI J. Environ. Radioact.
PD NOV
PY 2014
VL 137
BP 10
EP 17
DI 10.1016/j.jenvrad.2014.06.013
PG 8
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA AR5MG
UT WOS:000343628100002
PM 24980512
ER
PT J
AU Cassata, WS
Prussin, SG
Knight, KB
Hutcheon, ID
Isselhardt, BH
Renne, PR
AF Cassata, W. S.
Prussin, S. G.
Knight, K. B.
Hutcheon, I. D.
Isselhardt, B. H.
Renne, P. R.
TI When the dust settles: stable xenon isotope constraints on the formation
of nuclear fallout
SO JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
LA English
DT Article
DE Nuclear fallout; Xenon; Fission product; Chemical fractionation; Nuclear
fireball
ID GAMMA-RAY SPECTROSCOPY; VAPORIZATION BEHAVIOR; OUT PARTICLES; DEBRIS;
DEVICE; RADIONUCLIDES; TRINITITE; YIELD; FRACTIONATION; SYSTEMS
AB Nuclear weapons represent one of the most immediate threats of mass destruction. In the event that a procured or developed nuclear weapon is detonated in a populated metropolitan area, timely and accurate nuclear forensic analysis and fallout modeling would be needed to support attribution efforts and hazard assessments. Here we demonstrate that fissiogenic xenon isotopes retained in radioactive fallout generated by a nuclear explosion provide unique constraints on (1) the timescale of fallout formation, (2) chemical fractionation that occurs when fission products and nuclear fuel are incorporated into fallout, and (3) the speciation of fission products in the fireball. Our data suggest that, in near surface nuclear tests, the presence of a significant quantity of metal in a device assembly, combined with a short time allowed for mixing with the ambient atmosphere (seconds), may prevent complete oxidation of fission products prior to their incorporation into fallout. Xenon isotopes thus provide a window into the chemical composition of the fireball in the seconds that follow a nuclear explosion, thereby improving our understanding of the physical and thermo-chemical conditions under which fallout forms. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Cassata, W. S.; Knight, K. B.; Hutcheon, I. D.; Isselhardt, B. H.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Prussin, S. G.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
[Renne, P. R.] Berkeley Geochronol Ctr, Berkeley, CA 94709 USA.
[Renne, P. R.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
RP Cassata, WS (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM cassata2@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; U.S. Department of Energy's National Nuclear
Security Administration, Office of Defense Nuclear Nonproliferation
Research and Development
FX This work performed under the auspices of the U.S. Department of Energy
by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344. We thank the U.S. Department of Energy's National
Nuclear Security Administration, Office of Defense Nuclear
Nonproliferation Research and Development, for financial support. Jim
Delmore and two anonymous reviewers are thanked for their thoughtful and
constructive reviews of the manuscript.
NR 34
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PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0265-931X
EI 1879-1700
J9 J ENVIRON RADIOACTIV
JI J. Environ. Radioact.
PD NOV
PY 2014
VL 137
BP 88
EP 95
DI 10.1016/j.jenvrad.2014.06.011
PG 8
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA AR5MG
UT WOS:000343628100012
PM 25014883
ER
PT J
AU Livesay, RJ
Blessinger, CS
Guzzardo, TF
Hausladen, PA
AF Livesay, R. J.
Blessinger, C. S.
Guzzardo, T. F.
Hausladen, P. A.
TI Rain-induced increase in background radiation detected by Radiation
Portal Monitors
SO JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
LA English
DT Article
DE Environmental radiation; Portal monitors; Background radiation;
Radioisotopes; Radon
ID RAINWATER
AB A complete understanding of both the steady state and transient background measured by Radiation Portal Monitors (RPMs) is essential to predictable system performance, as well as maximization of detection sensitivity. To facilitate this understanding, a test bed for the study of natural background in RPMs has been established at the Oak Ridge National Laboratory. This work was performed in support of the Second Line of Defense Program's mission to enhance partner country capability to deter, detect, and interdict the illicit movement of special nuclear material.
In the present work, transient increases in gamma-ray counting rates in RPMs due to rain are investigated. The increase in background activity associated with rain, which has been well documented in the field of environmental radioactivity, originates primarily from the wet-deposition of two radioactive daughters of Rn-222, namely, Pb-214 and Bi-214. In this study, rainfall rates recorded by a co-located weather station are compared with RPM count rates and high-purity germanium spectra. The data verify that these radionuclides are responsible for the largest environmental background fluctuations in RPMs. Analytical expressions for the detector response function in Poly-Vinyl Toluene have been derived. Effects on system performance and potential mitigation strategies are discussed. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Livesay, R. J.] Mason Livesay Sci LLC, Knoxville, TN 37917 USA.
[Blessinger, C. S.; Guzzardo, T. F.; Hausladen, P. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Livesay, RJ (reprint author), Mason Livesay Sci LLC, 1519 Fremont Pl, Knoxville, TN 37917 USA.
EM jake@masonlivesay.com
FU UT-Battelle, LLC [DE-AC05-000R22725]; U.S. Department of Energy
FX This manuscript has been authored by UT-Battelle, LLC, under Contract
No. DE-AC05-000R22725 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.
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U1 3
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0265-931X
EI 1879-1700
J9 J ENVIRON RADIOACTIV
JI J. Environ. Radioact.
PD NOV
PY 2014
VL 137
BP 137
EP 141
DI 10.1016/j.jenvrad.2014.07.010
PG 5
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA AR5MG
UT WOS:000343628100019
PM 25062116
ER
PT J
AU Zhao, P
Tinnacher, RM
Zavarin, M
Kersting, AB
AF Zhao, P.
Tinnacher, R. M.
Zavarin, M.
Kersting, A. B.
TI Analysis of trace neptunium in the vicinity of underground nuclear tests
at the Nevada National Security Site
SO JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
LA English
DT Article
DE Ultra-low level; Neptunium analysis; Environment; Nevada National
Security Site; Retardation
ID PLASMA-MASS SPECTROMETRY; ENVIRONMENTAL-SAMPLES; IRISH SEA; INTERTIDAL
COASTAL; MARINE-ENVIRONMENT; GLOBAL FALLOUT; NP-237; PLUTONIUM; PU;
BEHAVIOR
AB A high sensitivity analytical method for Np-237 analysis was developed and applied to groundwater samples from the Nevada National Security Site (NNSS) using short-lived Np-239 as a yield tracer and HR magnetic sector ICP-MS. The Np-237 concentrations in the vicinity of the Almendro, Cambric, Dalhart, Cheshire, and Chancellor underground nuclear test locations range from <4 x 10(-4) to 2.6 mBq/L (6 x 10(-17)-4.2 x 10(-13) mol/L). All measured Np-237 concentrations are well below the drinking water maximum contaminant level for alpha emitters identified by the U.S. EPA (560 mBq/L). Nevertheless, Np-237 remains an important indicator for radionuclide transport rates at the NNSS. Retardation factor ratios were used to compare the mobility of Np-237 to that of other radionuclides. The results suggest that Np-237 is less mobile than tritium and other non-sorbing radionuclides (C-14, (CI)-C-36, Tc-99 and I-129) as expected. Surprisingly, Np-237 and plutonium (Pu-239,Pu-249) retardation factors are very similar. It is possible that Np(IV) exists under mildly reducing groundwater conditions and exhibits a retardation behavior that is comparable to Pu(IV). Independent of the underlying process, Np-237 is migrating downgradient from NNSS underground nuclear tests at very low but measureable concentrations. (C) 2014 The Authors. Published by Elsevier Ltd.
C1 [Zhao, P.; Zavarin, M.; Kersting, A. B.] Lawrence Livermore Natl Lab, GT Seaborg Inst, Livermore, CA 94550 USA.
[Zhao, P.; Zavarin, M.; Kersting, A. B.] Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA 94550 USA.
[Tinnacher, R. M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Zhao, P (reprint author), Lawrence Livermore Natl Lab, GT Seaborg Inst, 7000 East Ave, Livermore, CA 94550 USA.
EM zhao1@llnl.gov
RI Tinnacher, Ruth/I-4845-2015
FU Underground Test Area Project, National Nuclear Security Administration
Nevada Site Office - Subsurface Biogeochemical Research Program of the
U.S. Department of Energy's Office of Biological and Environmental
Research; U.S. Department of Energy by Lawrence Livermore National
Laboratory [DE-AC52-07NA27344]
FX Authors thank Dr. Ross Williams for ICP-MS analysis; Dr. Yunwei Sun for
fruitful discussions and calculations of radiologic chain decay. This
work was funded by the Underground Test Area Project, National Nuclear
Security Administration Nevada Site Office; supported by the Subsurface
Biogeochemical Research Program of the U.S. Department of Energy's
Office of Biological and Environmental Research; and performed under the
auspices of the U.S. Department of Energy by Lawrence Livermore National
Laboratory under Contract DE-AC52-07NA27344.
NR 48
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0265-931X
EI 1879-1700
J9 J ENVIRON RADIOACTIV
JI J. Environ. Radioact.
PD NOV
PY 2014
VL 137
BP 163
EP 172
DI 10.1016/j.jenvrad.2014.07.011
PG 10
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA AR5MG
UT WOS:000343628100022
PM 25078472
ER
PT J
AU Chiu, S
Williams, PT
Dawson, T
Bergman, RN
Stefanovski, D
Watkins, SM
Krauss, RM
AF Chiu, Sally
Williams, Paul T.
Dawson, Taylor
Bergman, Richard N.
Stefanovski, Darko
Watkins, Steven M.
Krauss, Ronald M.
TI Diets High in Protein or Saturated Fat Do Not Affect Insulin Sensitivity
or Plasma Concentrations of Lipids and Lipoproteins in Overweight and
Obese Adults
SO JOURNAL OF NUTRITION
LA English
DT Article
ID TYPE-2 DIABETES-MELLITUS; METABOLIC RISK-FACTORS; APOLIPOPROTEIN-A-I;
BODY-MASS INDEX; BRANCHED-CHAIN; WEIGHT-LOSS; MONOUNSATURATED FAT; MEAT
CONSUMPTION; AMINO-ACIDS; CARDIOVASCULAR RISK
AB Background: Previous human studies reported inconsistent effects of dietary protein and branched-chain amino acids (BCAAs) on insulin action and glucose metabolism. Similarly, it is unclear whether saturated fat (SF) intake influences these metabolic variables.
Objective: The objective of this study was to test the effects of high [30% of energy (%E)] vs. moderate (20%E) intakes of protein (primarily whey) on insulin action and lipid and lipoprotein concentrations in the context of both high (15%E) and low (7%E) SF diets.
Methods: The study was conducted as a randomized controlled trial in 158 overweight and obese men and women. After a 4-wk baseline diet [55%E carbohydrate, 15%E protein, 30%E fat (7%E SF)), participants were randomly assigned to 4 wk of either the baseline diet or 1 of 4 test diets containing 35%E carbohydrate and either 20%E or 30%E protein and either 7%E or 15%E SF. Frequently sampled iv. glucose tolerance tests were administered after each dietary period.
Results: Other than significantly higher fasting glucose concentrations for high vs. moderate protein intakes with a low-fat diet (difference +/- SE: 0.47 +/- 0.14 mmol/L; P = 0.001), there were no significant effects of dietary protein or SF on glucose metabolism, plasma insulin, or concentrations of lipids and lipoproteins. Changes in plasma BCAAs across all diets were negatively correlated with changes in the metabolic clearance rate of insulin (rho = -0.18, P = 0.03) and positively correlated with changes in the acute insulin response to glucose (rho = 0.15, P = 0.05).
Conclusions: These findings suggest that short-term intake Of BCAAs can influence insulin dynamics. However, in this group of overweight and obese individuals, neither high protein nor SF intake affected insulin sensitivity or plasma concentrations of lipids and lipoproteins. This trial was registered at clinicaltrials.gov as NCT00508937.
C1 [Chiu, Sally; Dawson, Taylor; Krauss, Ronald M.] Childrens Hosp Oakland Res Inst, Oakland, CA 94609 USA.
[Williams, Paul T.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Bergman, Richard N.; Stefanovski, Darko] Cedars Sinai Med Ctr, Diabet & Obes Res Inst, Los Angeles, CA 90048 USA.
[Watkins, Steven M.] Lipomics, West Sacramento, CA USA.
RP Krauss, RM (reprint author), Childrens Hosp Oakland Res Inst, Oakland, CA 94609 USA.
EM rkrauss@chori.org
FU Dairy Management, Inc; National Center for Research Resources; National
Center for Advancing Translational Sciences, NIH through UCSF-CTSI [UL1
RR024131]
FX This research was funded by Dairy Management, Inc, and was also
supported by the National Center for Research Resources and the National
Center for Advancing Translational Sciences, NIH, through UCSF-CTSI
grant UL1 RR024131. The contents of this article are solely the
responsibility of the authors and do not necessarily represent the
official views of the NIH.
NR 67
TC 12
Z9 12
U1 0
U2 20
PU AMER SOC NUTRITION-ASN
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA
SN 0022-3166
EI 1541-6100
J9 J NUTR
JI J. Nutr.
PD NOV
PY 2014
VL 144
IS 11
BP 1753
EP 1759
DI 10.3945/jn.114.197624
PG 7
WC Nutrition & Dietetics
SC Nutrition & Dietetics
GA AR6GN
UT WOS:000343681400012
PM 25332473
ER
PT J
AU Hraber, P
Korber, BT
Lapedes, AS
Bailer, RT
Seaman, MS
Gao, H
Greene, KM
McCutchan, F
Williamson, C
Kim, JH
Tovanabutra, S
Hahn, BH
Swanstrom, R
Thomson, MM
Gao, F
Harris, L
Giorgi, E
Hengartner, N
Bhattacharya, T
Mascola, JR
Montefiori, DC
AF Hraber, Peter
Korber, Bette T.
Lapedes, Alan S.
Bailer, Robert T.
Seaman, Michael S.
Gao, Hongmei
Greene, Kelli M.
McCutchan, Francine
Williamson, Carolyn
Kim, Jerome H.
Tovanabutra, Sodsai
Hahn, Beatrice H.
Swanstrom, Ronald
Thomson, Michael M.
Gao, Feng
Harris, Linda
Giorgi, Elena
Hengartner, Nicholas
Bhattacharya, Tanmoy
Mascola, John R.
Montefiori, David C.
TI Impact of Clade, Geography, and Age of the Epidemic on HIV-1
Neutralization by Antibodies
SO JOURNAL OF VIROLOGY
LA English
DT Article
ID IMMUNODEFICIENCY-VIRUS TYPE-1; INJECTION-DRUG USERS; B-CELL RECEPTORS;
EFFICACY TRIAL; ENVELOPE GLYCOPROTEINS; VACCINE DEVELOPMENT; IMMUNOGEN
DESIGN; STRUCTURAL BASIS; FOUNDER VIRUS; ENV CLONES
AB Neutralizing antibodies (nAbs) are a high priority for vaccines that aim to prevent the acquisition of HIV-1 infection. Vaccine effectiveness will depend on the extent to which induced antibodies neutralize the global diversity of circulating HIV-1 variants. Using large panels of genetically and geographically diverse HIV-1 Env-pseudotyped viruses and chronic infection plasma samples, we unambiguously show that cross-clade nAb responses are commonly induced in response to infection by any virus clade. Nonetheless, neutralization was significantly greater when the plasma clade matched the clade of the virus being tested. This within-clade advantage was diminished in older, more-diverse epidemics in southern Africa, the United States, and Europe compared to more recent epidemics in Asia. It was most pronounced for circulating recombinant form (CRF) 07_BC, which is common in China and is the least-divergent lineage studied; this was followed by the slightly more diverse Asian CRF01_AE. We found no evidence that transmitted/founder viruses are generally more susceptible to neutralization and are therefore easier targets for vaccination than chronic viruses. Features of the gp120 V1V2 loop, in particular, length, net charge, and number of N-linked glycans, were associated with Env susceptibility and plasma neutralization potency in a manner consistent with neutralization escape being a force that drives viral diversification and plasma neutralization breadth. The overall susceptibility of Envs and potencies of plasma samples were highly predictive of the neutralization outcome of any single virus-plasma combination. These findings highlight important considerations for the design and testing of candidate HIV-1 vaccines that aim to elicit effective nAbs.
IMPORTANCE An effective HIV-1 vaccine will need to overcome the extraordinary variability of the virus, which is most pronounced in the envelope glycoproteins (Env), which are the sole targets for neutralizing antibodies (nAbs). Distinct genetic lineages, or clades, of HIV-1 occur in different locales that may require special consideration when designing and testing vaccines candidates. We show that nAb responses to HIV-1 infection are generally active across clades but are most potent within clades. Because effective vaccine-induced nAbs are likely to share these properties, optimal coverage of a particular clade or combination of clades may require clade-matched immunogens. Optimal within-clade coverage might be easier to achieve in regions such as China and Thailand, where the epidemic is more recent and the virus less diverse than in southern Africa, the United States, and Europe. Finally, features of the first and second hypervariable regions of gp120 (V1V2) may be critical for optimal vaccine design.
C1 [Hraber, Peter; Korber, Bette T.; Lapedes, Alan S.; Giorgi, Elena; Hengartner, Nicholas; Bhattacharya, Tanmoy] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
[Korber, Bette T.] New Mexico Consortium, Los Alamos, NM USA.
[Bailer, Robert T.; Mascola, John R.] NIH, Vaccine Res Ctr, Bethesda, MD 20892 USA.
[Seaman, Michael S.] Beth Israel Deaconess Med Ctr, Boston, MA 02215 USA.
[Gao, Hongmei; Greene, Kelli M.; Gao, Feng; Montefiori, David C.] Duke Univ, Med Ctr, Durham, NC USA.
[McCutchan, Francine; Kim, Jerome H.; Tovanabutra, Sodsai] Walter Reed Army Inst Res, US Mil HIV Res Program, Silver Spring, MD USA.
[Williamson, Carolyn] Univ Cape Town, Inst Infect Dis & Mol Med, ZA-7925 Cape Town, South Africa.
[Hahn, Beatrice H.] Univ Penn, Perelman Sch Med, Philadelphia, PA 19104 USA.
[Swanstrom, Ronald] Univ N Carolina, Dept Microbiol & Immunol, Chapel Hill, NC USA.
[Thomson, Michael M.] Inst Salud Carlos III, Ctr Nacl Microbiol, Madrid, Spain.
[Harris, Linda] Fred Hutchinson Canc Res Ctr, Seattle, WA 98104 USA.
[Bhattacharya, Tanmoy] Santa Fe Inst, Santa Fe, NM 87501 USA.
RP Montefiori, DC (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
EM david.montefiori@duke.edu
RI Bhattacharya, Tanmoy/J-8956-2013;
OI Bhattacharya, Tanmoy/0000-0002-1060-652X; , Carolyn/0000-0003-0125-1226;
Korber, Bette/0000-0002-2026-5757; Hraber, Peter/0000-0002-2920-4897
FU Bill & Melinda Gates Foundation [38619, 1032144]
FX This work was funded by grants from the Bill & Melinda Gates Foundation,
which established the Comprehensive Antibody Vaccine Immune Monitoring
Consortium as part of the Collaboration for AIDS Vaccine Discovery
(grants 38619 and 1032144).
NR 111
TC 18
Z9 18
U1 1
U2 7
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0022-538X
EI 1098-5514
J9 J VIROL
JI J. Virol.
PD NOV
PY 2014
VL 88
IS 21
BP 12623
EP 12643
DI 10.1128/JVI.01705-14
PG 21
WC Virology
SC Virology
GA AR1BN
UT WOS:000343314900038
PM 25142591
ER
PT J
AU Nicholl, M
Smartt, SJ
Jerkstrand, A
Inserra, C
Anderson, JP
Baltay, C
Benetti, S
Chen, TW
Elias-Rosa, N
Feindt, U
Fraser, M
Gal-Yam, A
Hadjiyska, E
Howell, DA
Kotak, R
Lawrence, A
Leloudas, G
Margheim, S
Mattila, S
McCrum, M
McKinnon, R
Mead, A
Nugent, P
Rabinowitz, D
Rest, A
Smith, KW
Sollerman, J
Sullivan, M
Taddia, F
Valenti, S
Walker, ES
Young, DR
AF Nicholl, M.
Smartt, S. J.
Jerkstrand, A.
Inserra, C.
Anderson, J. P.
Baltay, C.
Benetti, S.
Chen, T. -W.
Elias-Rosa, N.
Feindt, U.
Fraser, M.
Gal-Yam, A.
Hadjiyska, E.
Howell, D. A.
Kotak, R.
Lawrence, A.
Leloudas, G.
Margheim, S.
Mattila, S.
McCrum, M.
McKinnon, R.
Mead, A.
Nugent, P.
Rabinowitz, D.
Rest, A.
Smith, K. W.
Sollerman, J.
Sullivan, M.
Taddia, F.
Valenti, S.
Walker, E. S.
Young, D. R.
TI Superluminous supernovae from PESSTO
SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
LA English
DT Article
DE supernovae: general; supernovae: individual: LSQ12dlf; supernovae:
individual: SN 2013dg; supernovae: individual: SSS120810:231802-560926
ID X-RAY-EMISSION; LIGHT CURVES; LUMINOUS SUPERNOVAE; PAIR-INSTABILITY;
CIRCUMSTELLAR MEDIUM; ANALYTIC SOLUTIONS; IC SUPERNOVAE; MASSIVE STARS;
IA SUPERNOVA; EXPLOSION
AB We present optical spectra and light curves for three hydrogen-poor superluminous supernovae followed by the Public ESO Spectroscopic Survey of Transient Objects (PESSTO). Time series spectroscopy from a fewdays aftermaximum light to 100 d later shows them to be fairly typical of this class, with spectra dominated by Ca II, MgII, FeII, and Si II, which evolve slowly over most of the post-peak photospheric phase. We determine bolometric light curves and apply simple fitting tools, based on the diffusion of energy input by magnetar spin-down, Ni-56 decay, and collision of the ejecta with an opaque circumstellar shell. We investigate how the heterogeneous light curves of our sample (combined with others from the literature) can help to constrain the possible mechanisms behind these events. We have followed these events to beyond 100-200 d after peak, to disentangle host galaxy light from fading supernova flux and to differentiate between the models, which predict diverse behaviour at this phase. Models powered by radioactivity require unrealistic parameters to reproduce the observed light curves, as found by previous studies. Both magnetar heating and circumstellar interaction still appear to be viable candidates. A large diversity is emerging in observed tail-phase luminosities, with magnetar models failing in some cases to predict the rapid drop in flux. This would suggest either that magnetars are not responsible, or that the X-ray flux from the magnetar wind is not fully trapped. The light curve of one object shows a distinct rebrightening at around 100 d after maximum light. We argue that this could result either from multiple shells of circumstellar material, or from a magnetar ionization front breaking out of the ejecta.
C1 [Nicholl, M.; Smartt, S. J.; Jerkstrand, A.; Inserra, C.; Chen, T. -W.; Kotak, R.; McCrum, M.; Smith, K. W.; Young, D. R.] Queens Univ Belfast, Sch Math & Phys, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland.
[Anderson, J. P.] European So Observ, Santiago 19, Chile.
[Baltay, C.; Hadjiyska, E.; McKinnon, R.; Rabinowitz, D.; Walker, E. S.] Yale Univ, Dept Phys, New Haven, CT 06520 USA.
[Benetti, S.; Elias-Rosa, N.] INAF Osservatorio Astron Padova, I-35122 Padua, Italy.
[Feindt, U.] Univ Bonn, Inst Phys, D-53115 Bonn, Germany.
[Fraser, M.] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
[Gal-Yam, A.] Weizmann Inst Sci, Benoziyo Ctr Astrophys, IL-76100 Rehovot, Israel.
[Howell, D. A.; Valenti, S.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
[Howell, D. A.; Valenti, S.] Global Telescope Network, Las Cumbres Observ, Goleta, CA 93117 USA.
[Lawrence, A.; Mead, A.] Univ Edinburgh, Royal Observ, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland.
[Leloudas, G.] Stockholm Univ, Dept Phys, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.
[Leloudas, G.] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, DK-2100 Copenhagen, Denmark.
[Margheim, S.] Southern Operat Ctr, Gemini Observ, La Serena, Chile.
[Mattila, S.] Univ Turku, Finnish Ctr Astron ESO FINCA, FI-21500 Piikkio, Finland.
[Nugent, P.] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA.
[Nugent, P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, Computat Cosmol Ctr, Berkeley, CA 94720 USA.
[Rest, A.] Space Telescope Sci Inst, Baltimore, MD 21218 USA.
[Sollerman, J.; Taddia, F.] Stockholm Univ, Dept Astron, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.
[Sullivan, M.] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.
RP Nicholl, M (reprint author), Queens Univ Belfast, Sch Math & Phys, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland.
EM mnicholl03@qub.ac.uk
RI Jerkstrand, Anders/K-9648-2015; Elias-Rosa, Nancy/D-3759-2014;
OI Mead, Alexander/0000-0003-3794-581X; Benetti,
Stefano/0000-0002-3256-0016; Jerkstrand, Anders/0000-0001-8005-4030;
Elias-Rosa, Nancy/0000-0002-1381-9125; Sollerman,
Jesper/0000-0003-1546-6615; Chen, Ting-Wan/0000-0002-1066-6098; Kotak,
Rubina/0000-0001-5455-3653; Inserra, Cosimo/0000-0002-3968-4409; Fraser,
Morgan/0000-0003-2191-1674; Sullivan, Mark/0000-0001-9053-4820
FU PESSTO, ESO programme [188.D-3003]; ESO programmes [089.D-0270,
091.D-0749]; UK Science and Technology Facilities Council; Las Cumbres
Observatory Global Telescope Network (LCOGTN); Gemini Observatory;
European Research Council under the European Union [291222]; STFC; DEL
NI; PRIN-INAF; project 'Transient Universe: from ESO Large to PESSTO';
European Union [320360, 267251]; 'The Quantum Universe' I-Core program
by the Israeli Committee for planning and funding; ISF; GIF grant;
Kimmel award
FX This work is based on observations collected at the European
Organisation for Astronomical Research in the Southern hemisphere,
Chile, as part of PESSTO, ESO programme ID 188.D-3003. VLT+X-shooter
spectra were obtained under ESO programmes 089.D-0270 and 091.D-0749.
Other observations have been collected using: the 4.3 m WHT, operated on
the island of La Palma by the Isaac Newton Group of Telescope; the
Liverpool Telescope, which is operated by Liverpool John Moores
University in the Spanish Observatorio del Roque de los Muchachos of the
Instituto de Astrofisica de Canarias with financial support from the UK
Science and Technology Facilities Council; the Las Cumbres Observatory
Global Telescope Network (LCOGTN); the Gemini Observatory, which is
operated by the Association of Universities for Research in Astronomy,
Inc., under a cooperative agreement with the NSF on behalf of the Gemini
partnership: the National Science Foundation (United States), the
National Research Council (Canada), CONICYT (Chile), the Australian
Research Council (Australia), Ministerio da Ciencia, Tecnologia e
Inovacao (Brazil), and Ministerio de Ciencia, Tecnologia e Innovacion
Productiva (Argentina). 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.
[291222] (PI SJS). We acknowledge funding from STFC and DEL NI. SB is
partially supported by the PRIN-INAF 2011 with the project 'Transient
Universe: from ESO Large to PESSTO'. MF was partly supported by the
European Union FP7 programme through ERC grant number 320360. NER
acknowledges the support from the European Union Seventh Framework
Programme (FP7/2007-2013) under grant agreement no. 267251 'Astronomy
Fellowships in Italy' (AstroFIt). AG-Y is supported by 'The Quantum
Universe' I-Core program by the Israeli Committee for planning and
funding and the ISF, a GIF grant, and the Kimmel award.
NR 69
TC 47
Z9 48
U1 0
U2 1
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0035-8711
EI 1365-2966
J9 MON NOT R ASTRON SOC
JI Mon. Not. Roy. Astron. Soc.
PD NOV 1
PY 2014
VL 444
IS 3
BP 2096
EP 2113
DI 10.1093/mnras/stu1579
PG 18
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AR2FS
UT WOS:000343399600010
ER
PT J
AU Mehta, SL
Dharap, A
Vemuganti, R
AF Mehta, Suresh L.
Dharap, Ashutosh
Vemuganti, Raghu
TI Expression of transcribed ultraconserved regions of genome in rat
cerebral cortex
SO NEUROCHEMISTRY INTERNATIONAL
LA English
DT Article
DE Brain; Non-coding RNA; lncRNA; Transcription; Gene expression
ID LONG NONCODING RNAS; FOCAL ISCHEMIA; GENE DESERTS; CANCER; ELEMENTS;
ENHANCER; CLASSIFICATION; EVOLUTION; SYSTEM; DNA
AB Emerging evidence indicates that 481 regions of the genome (>200 bp) that actively transcribe noncoding RNAs shows 100% homology between humans, rats and mice. These transcribed ultraconserved regions (T-UCRs) are thought to control the essential regulatory functions basic for life in rodents and mammals. Using microarray analysis, we presently show that 107 T-UCRs are actively expressed in adult rat cerebral cortex. They are grouped into intragenic (61) and intergenic (46) based on their genic location. Interestingly, 10 T-UCRs are expressed at unusually high levels in cerebral cortex. Additionally, many T-UCRs also showed cogenic expression. We further analyzed the correlation of intragenic T-UCRs with their host protein coding genes. Surprisingly, most of the expressed intragenic T-UCRs (54 out of 61) displayed a negative correlation with their host gene expression. T-UCRs are thought to control the splicing and transcription of the protein-coding genes that host them and flank them. Bioinformatics analysis indicated that the protein products of majority of these genes are nuclear in localization, share protein domains and are involved in the regulation of diverse biological and molecular functions including metabolism, development, cell cycle, binding and transcription factor regulation. In conclusion, this is the first study to shows that many T-UCRs are expressed in rodent brain and they might play a role in physiological brain functions. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Mehta, Suresh L.; Dharap, Ashutosh; Vemuganti, Raghu] Univ Wisconsin, Dept Neurol Surg, Madison, WI USA.
[Dharap, Ashutosh] Los Alamos Natl Lab, Los Alamos, NM USA.
RP Vemuganti, R (reprint author), Dept Neurol Surg, Mail Code CSC-8660,600 Highland Ave, Madison, WI 53792 USA.
EM Vemuganti@neurosurgery.wisc.edu
FU NIH [NS061071, NS074444]
FX The study was supported by NIH Grants NS061071 and NS074444.
NR 39
TC 0
Z9 0
U1 0
U2 3
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0197-0186
EI 1872-9754
J9 NEUROCHEM INT
JI Neurochem. Int.
PD NOV
PY 2014
VL 77
SI SI
BP 86
EP 93
DI 10.1016/j.neuint.2014.06.006
PG 8
WC Biochemistry & Molecular Biology; Neurosciences
SC Biochemistry & Molecular Biology; Neurosciences & Neurology
GA AR5MH
UT WOS:000343628200012
PM 24953281
ER
PT J
AU Khumalo, ZM
Topic, M
Comrie, CM
Blumenthal, M
Pineda-Vargas, CA
Bucher, R
Kisslinger, K
AF Khumalo, Z. M.
Topic, M.
Comrie, C. M.
Blumenthal, M.
Pineda-Vargas, C. A.
Bucher, R.
Kisslinger, K.
TI Effect of annealing on phase sequence and their composition in the
Pt-coated Mo system
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article
DE Phase transformation; Rutherford backscattering spectrometry (RBS);
X-ray diffraction (XRD); Transmission electron microscopy (TEM); Energy
dispersive spectroscopy (EDS)
ID MOLYBDENUM-PLATINUM SYSTEM; FORMATION MODEL; EFFECTIVE HEAT
AB The phase formation sequence and the composition of phases induced by thermal annealing in a platinum (Pt) coated molybdenum (Mo) system were investigated by X-ray diffraction (XRD), Rutherford backscattering spectrometry (RBS) and transmission electron microscopy (TEM). The X-ray diffraction study of a 0.2 mu m thick platinum layer deposited on a Mo substrate and annealed at temperatures between 800 degrees C and 900 degrees C for different periods of time shows the formation of MoPt2 and MoPt phases. It was also found that these phases nucleate sequentially and the MoPt2 phase becomes unstable at 900 degrees C after a longer annealing time of 8 h. Rutherford backscattering spectroscopy and transmission electron microscopy showed that the coating thickness approximately doubled after thermal annealing, from 0.22 mu m to 0.46 mu m, due to the formation of the Pt Mo phases. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Khumalo, Z. M.; Comrie, C. M.; Blumenthal, M.] Univ Cape Town, Dept Phys, ZA-7701 Rondebosch, South Africa.
[Khumalo, Z. M.; Topic, M.; Comrie, C. M.; Pineda-Vargas, C. A.; Bucher, R.] Natl Res Fdn, Mat Res Dept, iThemba LABS, Somerset West, South Africa.
[Kisslinger, K.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Khumalo, ZM (reprint author), Univ Cape Town, Dept Phys, Private Bag X3, ZA-7701 Rondebosch, South Africa.
EM zakhele@tlabs.ac.za
RI Kisslinger, Kim/F-4485-2014
FU Mintek, Department of Science and Technology (DST); South African
National Research Foundation (NRF)
FX Mintek, Department of Science and Technology (DST) and South African
National Research Foundation (NRF) for financial support, Center for
Functional Nanomaterials (Brookhaven National Laboratory, USA), Electron
Microscope Unit (University of Cape Town) and Electron Microscope Unit
(University of the Western Cape) for the use of their facilities.
NR 12
TC 0
Z9 0
U1 1
U2 9
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD NOV 1
PY 2014
VL 338
BP 8
EP 12
DI 10.1016/j.nimb.2014.07.029
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AR2CE
UT WOS:000343390400002
ER
PT J
AU Zhang, Y
Crespillo, ML
Xue, H
Jin, K
Chen, CH
Fontana, CL
Graham, JT
Weber, WJ
AF Zhang, Y.
Crespillo, M. L.
Xue, H.
Jin, K.
Chen, C. H.
Fontana, C. L.
Graham, J. T.
Weber, W. J.
TI New ion beam materials laboratory for materials modification and
irradiation effects research
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article
DE Tandem accelerator; Ion beam analysis; Ion-solid interaction;
Irradiation effects
ID TIME-OF-FLIGHT; RECOIL DETECTION ANALYSIS; SURFACE-LAYERS;
LIGHT-ELEMENTS; ALPHA-QUARTZ; ENERGY LOSS; HEAVY-IONS; TOF-ERDA;
RESOLUTION; DETECTOR
AB A new multifunctional ion beam materials laboratory (IBML) has been established at the University of Tennessee, in partnership with Oak Ridge National Laboratory. The IBML is currently equipped with two ion sources, a 3 MV tandem accelerator, three beamlines and three endstations. The IBML is primarily dedicated to fundamental research on ion solid interaction, ion beam analysis, ion beam modification, and other basic and applied research on irradiation effects in a wide range of materials. An overview of the IBML facility is provided, and experimental results are reported to demonstrate the specific capabilities. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Zhang, Y.; Fontana, C. L.; Weber, W. J.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Zhang, Y.; Crespillo, M. L.; Xue, H.; Jin, K.; Chen, C. H.; Graham, J. T.; Weber, W. J.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
RP Zhang, Y (reprint author), Oak Ridge Natl Lab, MS 6138, Oak Ridge, TN 37831 USA.
EM Zhangy1@ornl.gov; wjweber@utk.edu
RI Weber, William/A-4177-2008
OI Weber, William/0000-0002-9017-7365
FU UT-ORNL Governor's Chair program; U.S. Department of Energy (DOE),
Nuclear Energy University Programs; U.S. DOE Office of Basic Energy
Sciences (BES), Materials Sciences & Engineering Division (MSED); U.S.
DOE, BES, MSED; U.S. Department of Defense (DOD), Defense Threat
Reduction Agency (DTRA), Research and Development (R&D) Enterprise,
Basic and Applied Sciences Directorate; ORNL LDRD for the TOF ERDA
development
FX The UT-ORNL Ion Beam Materials Laboratory (IBML) was established with
support from the UT-ORNL Governor's Chair program. The development of
the high temperature endstation (L3) was supported by an infrastructure
grant from the U.S. Department of Energy (DOE), Nuclear Energy
University Programs. Y. Zhang is grateful to the Presidential Early
Career Award for Scientists and Engineers (PECASE) support through the
U.S. DOE Office of Basic Energy Sciences (BES), Materials Sciences &
Engineering Division (MSED). Y. Zhang, C.L. Fontana and W.J. Weber were
partially supported by the U.S. DOE, BES, MSED in the development and
demonstration of unique capabilities for damage accumulation studies. K.
Jin and Y. Zhang acknowledge the support on energy loss determination
from the U.S. Department of Defense (DOD), Defense Threat Reduction
Agency (DTRA), Research and Development (R&D) Enterprise, Basic and
Applied Sciences Directorate. C.L. Fontana was partially supported by
ORNL LDRD for the TOF ERDA development. Y. Zhang is also grateful to the
assistance and support from Gregory A. Norton, Jeremy Kasmarek, and Dan
Bernhardt at National Electrostatics Corp.
NR 55
TC 20
Z9 20
U1 0
U2 13
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD NOV 1
PY 2014
VL 338
BP 19
EP 30
DI 10.1016/j.nimb.2014.07.028
PG 12
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AR2CE
UT WOS:000343390400004
ER
PT J
AU Hattar, K
Bufford, DC
Buller, DL
AF Hattar, K.
Bufford, D. C.
Buller, D. L.
TI Concurrent in situ ion irradiation transmission electron microscope
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article
DE In situ transmission electron microscopy (TEM); Single ion strike;
Radiation effects; Ion irradiation; Extreme environments
ID DISLOCATION LOOPS; ISOTOPE SEPARATOR; TEM OBSERVATIONS; EVOLUTION;
ALLOYS; DAMAGE; IMPLANTATION; CASCADES; HYDROGEN; DEFECTS
AB An in situ ion irradiation transmission electron microscope has been developed and is operational at Sandia National Laboratories. This facility permits high spatial resolution, real time observation of electron transparent samples under ion irradiation, implantation, mechanical loading, corrosive environments, and combinations thereof. This includes the simultaneous implantation of low-energy gas ions (0.8-30 key) during high-energy heavy ion irradiation (0.8-48 MeV). Initial results in polycrystalline gold foils are provided to demonstrate the range of capabilities. (C) 2014 The Authors. Published by Elsevier B.V.
C1 [Hattar, K.; Bufford, D. C.; Buller, D. L.] Sandia Natl Labs, Dept Radiat Solid Interact, Livermore, CA 94550 USA.
RP Hattar, K (reprint author), Sandia Natl Labs, Dept Radiat Solid Interact, Livermore, CA 94550 USA.
EM khattar@sandia.gov
FU US Department of Energy, Office of Basic Energy Sciences; U.S.
Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX The authors would like to thank J.P. Allain, C.M. Barr, B.L. Boyce, T.J.
Boyle, C. Chisholm, B.G. Clark, J.S. Custer, B.L. Doyle, O. El-Atwani,
B.A. Hernandez-Sanchez, J.A. Hinks, P. Hosemann, A. Kinghom, M. Kirk, N.
Li, T. Lagrange, A. Lupinacci, M. Marshall, D. Masiel, M. Mecklenbrug,
A. Minor, A. Misra, S.H. Pratt, J.A. Scott, D.K. Serkland, J.A. Sharon,
M. Steckbeck, M.L. Taheri, G.A. Vetterick, J. Vilone, G. Vizkelethy, W.
Wampler, and B. Yates for their advice and assistance in the development
of this facility. This work was partially supported by the US Department
of Energy, Office of Basic Energy Sciences. 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 54
TC 19
Z9 19
U1 2
U2 42
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD NOV 1
PY 2014
VL 338
BP 56
EP 65
DI 10.1016/j.nimb.2014.08.002
PG 10
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AR2CE
UT WOS:000343390400009
ER
PT J
AU Scandale, W
Arduini, G
Butcher, M
Cerutti, F
Gilardoni, S
Lari, L
Lechner, A
Losito, R
Masi, A
Mereghetti, A
Metral, E
Mirarchi, D
Montesano, S
Redaelli, S
Schoofs, P
Smirnov, G
Bagli, E
Bandiera, L
Baricordi, S
Dalpiaz, P
Guidi, V
Mazzolari, A
Vincenzi, D
Claps, G
Dabagov, S
Hampai, D
Murtas, F
Cavoto, G
Garattini, M
Iacoangeli, F
Ludovici, L
Santacesaria, R
Valente, P
Galluccio, F
Afonin, AG
Chesnokov, YA
Maisheev, VA
Sandomirskiy, YE
Yanovich, AA
Yazynin, LA
Kovalenko, A
Taratin, AM
Gavrikov, YA
Ivanov, YM
Lapina, LP
Ferguson, W
Fulcheri, J
Hall, G
Pesaresi, M
Raymond, M
Previtali, V
AF Scandale, W.
Arduini, G.
Butcher, M.
Cerutti, F.
Gilardoni, S.
Lari, L.
Lechner, A.
Losito, R.
Masi, A.
Mereghetti, A.
Metral, E.
Mirarchi, D.
Montesano, S.
Redaelli, S.
Schoofs, P.
Smirnov, G.
Bagli, E.
Bandiera, L.
Baricordi, S.
Dalpiaz, P.
Guidi, V.
Mazzolari, A.
Vincenzi, D.
Claps, G.
Dabagov, S.
Hampai, D.
Murtas, F.
Cavoto, G.
Garattini, M.
Iacoangeli, F.
Ludovici, L.
Santacesaria, R.
Valente, P.
Galluccio, F.
Afonin, A. G.
Chesnokov, Yu. A.
Maisheev, V. A.
Sandomirskiy, Yu. E.
Yanovich, A. A.
Yazynin, L. A.
Kovalenko, Ad.
Taratin, A. M.
Gavrikov, Yu. A.
Ivanov, Yu. M.
Lapina, L. P.
Ferguson, W.
Fulcheri, J.
Hall, G.
Pesaresi, M.
Raymond, M.
Previtali, V.
TI Deflection of high energy protons by multiple volume reflections in a
modified multi-strip silicon deflector
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article
DE Accelerator; Beam collimation; Crystal; Channeling; Volume reflection
ID BENT CRYSTALS; CHARGED-PARTICLES; SEQUENCE; BEAMS
AB The effect of multiple volume reflections in one crystal was observed in each of several bent silicon strips for 400 GeV/c protons. This considerably increased the particle deflections. Some particles were also deflected due to channeling in one of the subsequent strips. As a result, the incident beam was strongly spread because of opposite directions of the deflections. A modified multi-strip deflector produced by periodic grooves on the surface of a thick silicon plate was used for these measurements. This technique provides perfect mutual alignment between crystal strips. Such multi-strip deflector may be effective for collider beam halo collimation and a study is planned at the CERN SPS circulating beam. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Scandale, W.; Arduini, G.; Butcher, M.; Cerutti, F.; Gilardoni, S.; Lari, L.; Lechner, A.; Losito, R.; Masi, A.; Mereghetti, A.; Metral, E.; Mirarchi, D.; Montesano, S.; Redaelli, S.; Schoofs, P.; Smirnov, G.] CERN, European Org Nucl Res, CH-1211 Geneva 23, Switzerland.
[Scandale, W.] Univ Paris Sud Orsay, LAL, Orsay, France.
[Bagli, E.; Bandiera, L.; Baricordi, S.; Dalpiaz, P.; Guidi, V.; Mazzolari, A.; Vincenzi, D.] Univ Ferrara, Ist Nazl Fis Nucl, Dipartimento Fis, Sez Ferrara, I-44100 Ferrara, Italy.
[Claps, G.; Dabagov, S.; Hampai, D.; Murtas, F.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Roma, Italy.
[Scandale, W.; Cavoto, G.; Garattini, M.; Iacoangeli, F.; Ludovici, L.; Santacesaria, R.; Valente, P.] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy.
[Galluccio, F.] Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy.
[Afonin, A. G.; Chesnokov, Yu. A.; Maisheev, V. A.; Sandomirskiy, Yu. E.; Yanovich, A. A.; Yazynin, L. A.] Inst High Energy Phys, RU-142284 Protvino, Russia.
[Kovalenko, Ad.; Taratin, A. M.] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
[Gavrikov, Yu. A.; Ivanov, Yu. M.; Lapina, L. P.] Petersburg Nucl Phys Inst, Gatchina 188300, Leningrad Regio, Russia.
[Mirarchi, D.; Ferguson, W.; Fulcheri, J.; Hall, G.; Pesaresi, M.; Raymond, M.] Univ London Imperial Coll Sci Technol & Med, London, England.
[Previtali, V.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Lari, L.] Inst Fis Corpuscular, CSIC, IFIC, Valencia, Spain.
[Dabagov, S.] PN Lebedev Phys Inst, Moscow 117924, Russia.
[Dabagov, S.] NRNU MEPhl, Moscow, Russia.
RP Taratin, AM (reprint author), Joint Inst Nucl Res, Joliot Curie 6, Dubna 141980, Moscow Region, Russia.
RI valente, paolo/A-6640-2010; Bagli, Enrico/E-5906-2012; Ludovici,
Lucio/F-5917-2011; Murtas, Fabrizio/B-5729-2012; Dabagov,
Sultan/M-6425-2015; Mazzolari, Andrea/A-1100-2017;
OI valente, paolo/0000-0002-5413-0068; Bagli, Enrico/0000-0003-3913-7701;
Ludovici, Lucio/0000-0003-1970-9960; Dabagov,
Sultan/0000-0003-3087-1205; Mazzolari, Andrea/0000-0003-0804-6778;
guidi, vincenzo/0000-0001-9726-8481; Murtas,
Fabrizio/0000-0002-7041-6541; Cavoto, Gianluca/0000-0003-2161-918X
FU Russian Foundation for Basic Research [05-02-17622, 06-02-16912]; RF
President Foundation [SS-3383.2010.2]; LHC Program of Presidium of
Russian Academy of Sciences; Grant RFBR-CERN [12-02-91532]; MIUR [FIRB
RBFR085MOL_001/I11J10000090001]; Ministry of Education and Science of RF
[02.A03.21.0005]; EuCARD program within the "Collimators and Materials
for high power beams" work package (Colmat-WP) [GA 227579]; UK Science
and Technology Facilities Council
FX We wish to acknowledge the strong support of the CERN EN-STI and BE-AOP
groups. We also acknowledge the partial support by the Russian
Foundation for Basic Research Grants 05-02-17622 and 06-02-16912, the RF
President Foundation Grant SS-3383.2010.2, the "LHC Program of Presidium
of Russian Academy of Sciences" and the Grant RFBR-CERN 12-02-91532. G.
Cavoto, F. Iacoangeli and R. Santacesaria acknowledge the support from
MIUR (Grant FIRB RBFR085MOL_001/I11J10000090001). S. Dabagov
acknowledges the support by the Ministry of Education and Science of RF
in the frames of Competitiveness Growth Program of NRNU MEPhI, Agreement
02.A03.21.0005. Work supported by the EuCARD program GA 227579, within
the "Collimators and Materials for high power beams" work package
(Colmat-WP). The Imperial College group gratefully acknowledges support
from the UK Science and Technology Facilities Council.
NR 22
TC 1
Z9 1
U1 0
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD NOV 1
PY 2014
VL 338
BP 108
EP 111
DI 10.1016/j.nimb.2014.08.013
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AR2CE
UT WOS:000343390400016
ER
PT J
AU Schwehr, KA
Otosaka, S
Merchel, S
Kaplan, DI
Zhang, S
Xu, C
Li, HP
Ho, YF
Yeager, CM
Santschi, PH
AF Schwehr, Kathleen A.
Otosaka, Shigeyoshi
Merchel, Silke
Kaplan, Daniel I.
Zhang, Saijin
Xu, Chen
Li, Hsiu-Ping
Ho, Yi-Fang
Yeager, Chris M.
Santschi, Peter H.
CA ASTER Team
TI Speciation of iodine isotopes inside and outside of a contaminant plume
at the Savannah River Site
SO SCIENCE OF THE TOTAL ENVIRONMENT
LA English
DT Article
DE Radioiodine (I-129); Iodide; Iodate; Organo-iodine; Accelerator mass
spectrometer (AMS) Iodine speciation
ID ENVIRONMENTAL TRACER; MASS-SPECTROMETRY; RADIOIODINE I-129;
ORGANIC-MATTER; GROUNDWATER; I-129/I-127; FACILITIES; MOBILITY; WATERS;
AMS
AB A primary obstacle in understanding the fate and transport of the toxic radionuclide I-129 (a thyroid seeker) is an accurate method to distinguish it from the stable isotope, I-127, and to quantify the various species at environmentally relevant concentrations (similar to 10(-8) M). A pH-dependent solvent extraction and combustion method was paired with accelerator mass spectrometry (AMS) to measure ambient levels of I-129/I-127 isotope ratios and iodine speciation (iodide (I-), iodate (IO3-), and organo-I (OI)) in aquatic systems. The method exhibited an overall uncertainty of 10% or less for I- and IO3- and less than 30% for OI species concentrations and enabled I-129 measurements as low as 0.001 Bq/L (I Bq/L = 10(-13) M). The method was used to analyze groundwater from the Savannah River Site (SRS), South Carolina, USA, along a pH, redox potential (Eh), and organic carbon gradient (8-60 mu M DOC). The data confirmed that the I-129/I-127 ratios and species distribution were strongly pH dependent and varied in a systematic manner from the strongly acidic source. While I-129 speciation in plume samples containing total I concentrations >1.7 Bq/L was similar whether measured by AMS or GC-MS ([I-] >> [IO3-] = [OI]), AMS enabled I-129 speciation measurements at much lower concentrations than what was possible with GC-MS. AMS analyses demonstrated that groundwater samples minimally impacted by the plume were still orders of magnitude higher than ambient I-129 concentrations typically found elsewhere in the USA groundwaters and rivers. This is likely due to past atmospheric releases of volatile I-129 species by SRS nuclear reprocessing facilities near the study site. Furthermore, the results confirmed the existence of I-129 not only as I-, but also as OI and IO3- species. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Schwehr, Kathleen A.; Otosaka, Shigeyoshi; Zhang, Saijin; Xu, Chen; Li, Hsiu-Ping; Ho, Yi-Fang; Santschi, Peter H.] Texas A&M Univ, Dept Marine Sci, Lab Oceanog & Environm Res, Galveston, TX 77553 USA.
[Otosaka, Shigeyoshi] Japan Atom Energy Agcy, Res Grp Environm Sci, Tokai, Ibaraki 3191195, Japan.
[Merchel, Silke] Helmholtz Zentrum Dresden Rossendorf, D-01328 Dresden, Germany.
[Kaplan, Daniel I.] Savannah River Natl Lab, Aiken, SC 29808 USA.
[Yeager, Chris M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[ASTER Team] Aix Marseille Univ, ASTER Team, CEREGE, CNRS IRD UM 34, F-13545 Aix En Provence, France.
RP Schwehr, KA (reprint author), Texas A&M Univ, Dept Marine Sci, Lab Oceanog & Environm Res, OCSB 3029,200 Seawolf Pkwy, Galveston, TX 77553 USA.
OI Santschi, Peter/0000-0001-8188-7691
FU INSU/CNRS; French Ministry of Research and Higher Education; IRD; CEA;
German-French exchange program (DAAD) [500 888 61, 22077QC];
German-French exchange program (EGIDE) [500 888 61, 22077QC]; US
Department of Energy's (DOE) Subsurface Biogeochemical Research (SBR)
Program within the Office of Science [ER65222-1038426-0017532]
FX We would like to thank E. Nottoli for her valuable assistance during the
AMS measurements that were performed at the French AMS national facility
ASTER (CEREGE, Aix-en-Provence) which is supported by the INSU/CNRS, the
French Ministry of Research and Higher Education, the IRD and the CEA.
This work was partially funded by a German-French exchange program (DAAD
and EGIDE) (500 888 61 and 22077QC), and the US Department of Energy's
(DOE) Subsurface Biogeochemical Research (SBR) Program within the Office
of Science (ER65222-1038426-0017532).
NR 33
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U1 1
U2 27
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0048-9697
EI 1879-1026
J9 SCI TOTAL ENVIRON
JI Sci. Total Environ.
PD NOV 1
PY 2014
VL 497
BP 671
EP 678
DI 10.1016/j.scitotenv.2014.07.006
PG 8
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA AR5GM
UT WOS:000343613100072
PM 25173764
ER
PT J
AU Budiman, AS
Illya, G
Handara, V
Caldwell, WA
Bonelli, C
Kunz, M
Tamura, N
Verstraeten, D
AF Budiman, A. S.
Illya, G.
Handara, V.
Caldwell, W. A.
Bonelli, C.
Kunz, M.
Tamura, N.
Verstraeten, D.
TI Enabling thin silicon technologies for next generation c-Si solar PV
renewable energy systems using synchrotron X-ray microdiffraction as
stress and crack mechanism probe
SO SOLAR ENERGY MATERIALS AND SOLAR CELLS
LA English
DT Article
DE Thin silicon; Solar cell; Synchrotron X-ray microdiffraction; Stress;
Fracture
ID RELIABILITY
AB Recently, there has been a strong commercial push toward thinner silicon in the solar photovoltaic (PV) technologies due to the significant cost reduction associated with it. Tensile stress (normal, in-plane) and fracture of the silicon cells are increasingly observed and reported for products of crystalline solar cell technologies. In an effort to shed light on these topics, stress measurements and mapping of the solar cells in the vicinity of the most typically observed crack initiation locations using synchrotron X-ray microdiffraction technique was conducted and are reported in this paper. The technique is unique as it has the capabilities to quantitatively determine stresses in silicon and to map these stresses with a micron resolution, all while the silicon cells are already encapsulated.
With this technique, we aim to gain fundamental understanding of the stress magnitudes as well as characteristics that could lead to crack initiation and propagation. We have thus far found evidences of both extrinsic (device related) as well as intrinsic (crystallographic) nature of silicon cracking, which further confirm that the control of mechanical stress is the key to enable thin silicon solar cell technologies in the coming years. This study represents an ongoing high impact technology research that addresses real and important fundamental materials issue facing the crystalline silicon solar PV industry and contributes directly to the industry drive to reduce cost of PV systems to grid parity. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Budiman, A. S.] SUTD, EPD Pillar, Singapore 138682, Singapore.
[Illya, G.; Handara, V.] Surya Univ, Ctr Solar Photovolta Mat & Technol CPV, Summarecon Serpong 15810, Tangerang, Indonesia.
[Budiman, A. S.; Caldwell, W. A.] SunPower Corp, R&D, San Jose, CA 95134 USA.
[Bonelli, C.; Verstraeten, D.] TOTAL Gas & Power, R&D Div, F-92400 Courbevoie, France.
[Kunz, M.; Tamura, N.] Lawrence Berkeley Natl Lab, ALS, Berkeley, CA 94720 USA.
RP Budiman, AS (reprint author), SUTD, EPD Pillar, 20 Dover Dr, Singapore 138682, Singapore.
EM suriadi@alumni.stanford.edu
FU Sun Power Corporation; Surya University through the Center for Solar
Photovoltaics Materials and Technology (CPV); Office of Science, Office
of Basic Energy Sciences, Materials Sciences Division of the
U.S.Department of Energy at Lawrence Berkeley National Laboratory
[DE-AC02-05CH11231]; University of California, Berkeley, California; NSF
[0416243]
FX ASB gratefully acknowledges research support and samples provided by Sun
Power Corporation. He also gratefully acknowledges critical support and
infrastructure provided by Singapore University of Technology and Design
(SUTD) during the writing of this manuscript. GI and VH gratefully
acknowledge research support and infrastructure provided by Surya
University through the Center for Solar Photovoltaics Materials and
Technology (CPV; www.cpv-surya.corn).; The Advanced Light Source is
supported by the Director, Office of Science, Office of Basic Energy
Sciences, Materials Sciences Division of the U.S.Department of Energy
under Contract no. DE-AC02-05CH11231 at Lawrence Berkeley National
Laboratory and University of California, Berkeley, California.; The move
of the micro-diffraction program from ALS beamline 7.3.3 onto to the ALS
superbend source 12.3.2 was enabled through the NSF Grant no. 0416243.
NR 17
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U1 2
U2 15
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-0248
EI 1879-3398
J9 SOL ENERG MAT SOL C
JI Sol. Energy Mater. Sol. Cells
PD NOV
PY 2014
VL 130
SI SI
BP 303
EP 308
DI 10.1016/j.solmat.2014.07.029
PG 6
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA AR5GH
UT WOS:000343612600038
ER
PT J
AU Choi, SG
Kim, TJ
Hwang, SY
Li, J
Persson, C
Kim, YD
Wei, SH
Repins, IL
AF Choi, S. G.
Kim, T. J.
Hwang, S. Y.
Li, J.
Persson, C.
Kim, Y. D.
Wei, S. -H.
Repins, I. L.
TI Temperature dependent band-gap energy for Cu2ZnSnSe4: A spectroscopic
ellipsometric study
SO SOLAR ENERGY MATERIALS AND SOLAR CELLS
LA English
DT Article
DE Cu2ZnSnSe4 solar cell; Spectroscopic ellipsometry; Band-gap energy
ID DIELECTRIC FUNCTION; SOLAR-CELLS; FILMS; SEMICONDUCTORS; EFFICIENCY;
MODEL; IV; VI
AB Spectroscopic ellipsometry (SE) is used to study the dependence of the band-gap energy for Cu2ZnSnSe4 (CZTSe) on temperature ranging from 50 to 350 K. A CZTSe thin film prepared by the pseudo-bulk approach allows direct observation of the fundamental band-gap E-0(A,B) in the SE data without need for multi-layer modeling. We obtain accurate energy values for E-0(A,B) and its spin-orbit splitting component E-0(C) from standard lineshape analysis of the second-energy-derivative spectra. The E-0(A,B) and E-0(C) energies for CZTSe decrease with increasing temperature, as for many semiconductors, but their temperature dependencies are relatively weak. Our experimental observation can be explained in terms of relatively small change in bond-length and strong p-d states coupling at the valence band maximum. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Choi, S. G.; Kim, T. J.; Wei, S. -H.; Repins, I. L.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Kim, T. J.; Hwang, S. Y.; Kim, Y. D.] Kyung Hee Univ, Dept Phys, Seoul 130701, South Korea.
[Li, J.] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA.
[Persson, C.] Univ Oslo, Dept Phys, N-0316 Oslo, Norway.
RP Choi, SG (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM sukgeun.choi@nrel.gov
FU U.S. Department of Energy [DE-AC36-08-GO28308]; National Renewable
Energy Laboratory; National Research Foundation of Korea (NRF) grant -
Korea government (MSIP) [2013-016297]
FX This work was supported by the U.S. Department of Energy under Contract
no. DE-AC36-08-GO28308 with the National Renewable Energy Laboratory.
The work done at Kyung Hee University was supported by the National
Research Foundation of Korea (NRF) grant funded through the Korea
government (MSIP) (Grant no. 2013-016297). The work at the University of
Oslo was done with HPC resources at USIT through NOTUR.
NR 29
TC 15
Z9 15
U1 4
U2 33
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-0248
EI 1879-3398
J9 SOL ENERG MAT SOL C
JI Sol. Energy Mater. Sol. Cells
PD NOV
PY 2014
VL 130
SI SI
BP 375
EP 379
DI 10.1016/j.solmat.2014.07.039
PG 5
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA AR5GH
UT WOS:000343612600047
ER
PT J
AU Sinsabaugh, RL
Belnap, J
Findlay, SG
Shah, JJF
Hill, BH
Kuehn, KA
Kuske, CR
Litvak, ME
Martinez, NG
Moorhead, DL
Warnock, DD
AF Sinsabaugh, Robert L.
Belnap, Jayne
Findlay, Stuart G.
Shah, Jennifer J. Follstad
Hill, Brian H.
Kuehn, Kevin A.
Kuske, Cheryl R.
Litvak, Marcy E.
Martinez, Noelle G.
Moorhead, Daryl L.
Warnock, Daniel D.
TI Extracellular enzyme kinetics scale with resource availability
SO BIOGEOCHEMISTRY
LA English
DT Article
DE Ecological stoichiometry; Extracellular enzymes; Enzyme kinetics;
Microbial community; Microbial metabolism
ID SOIL ORGANIC-MATTER; CARBON-MONOXIDE CONSUMPTION; METHANE-OXIDIZING
BACTERIA; ECOENZYMATIC STOICHIOMETRY; RIVERINE BACTERIOPLANKTON;
TEMPERATURE SENSITIVITY; EXOPROTEOLYTIC ACTIVITY; THEORETICAL-MODEL;
TROPHIC GRADIENT; SIZE FRACTIONS
AB Microbial community metabolism relies on external digestion, mediated by extracellular enzymes that break down complex organic matter into molecules small enough for cells to assimilate. We analyzed the kinetics of 40 extracellular enzymes that mediate the degradation and assimilation of carbon, nitrogen and phosphorus by diverse aquatic and terrestrial microbial communities (1160 cases). Regression analyses were conducted by habitat (aquatic and terrestrial), enzyme class (hydrolases and oxidoreductases) and assay methodology (low affinity and high affinity substrates) to relate potential reaction rates to substrate availability. Across enzyme classes and habitats, the scaling relationships between apparent V-max and apparent K-m followed similar power laws with exponents of 0.44 to 0.67. These exponents, called elasticities, were not statistically distinct from a central value of 0.50, which occurs when the K-m of an enzyme equals substrate concentration, a condition optimal for maintenance of steady state. We also conducted an ecosystem scale analysis of ten extracellular hydrolase activities in relation to soil and sediment organic carbon (2,000-5,000 cases/enzyme) that yielded elasticities near 1.0 (0.9 +/- A 0.2, n = 36). At the metabolomic scale, the elasticity of extracellular enzymatic reactions is the proportionality constant that connects the C:N:P stoichiometries of organic matter and ecoenzymatic activities. At the ecosystem scale, the elasticity of extracellular enzymatic reactions shows that organic matter ultimately limits effective enzyme binding sites. Our findings suggest that one mechanism by which microbial communities maintain homeostasis is regulating extracellular enzyme expression to optimize the short-term responsiveness of substrate acquisition. The analyses also show that, like elemental stoichiometry, the fundamental attributes of enzymatic reactions can be extrapolated from biochemical to community and ecosystem scales.
C1 [Sinsabaugh, Robert L.; Litvak, Marcy E.; Martinez, Noelle G.; Warnock, Daniel D.] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA.
[Belnap, Jayne] US Geol Survey, Southwest Biol Sci Ctr, Moab, UT 84532 USA.
[Findlay, Stuart G.] Cary Inst Ecosyst Studies, Millbrook, NY 12545 USA.
[Shah, Jennifer J. Follstad] Utah State Univ, Watershed Sci Dept, Logan, UT 84322 USA.
[Hill, Brian H.] US EPA, Natl Hlth & Environm Effects Lab, Midcontinent Ecol Div, Off Res & Dev, Duluth, MN 55804 USA.
[Kuehn, Kevin A.] Univ So Mississippi, Dept Biol Sci, Hattiesburg, MS 39406 USA.
[Kuske, Cheryl R.] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM USA.
[Moorhead, Daryl L.] Univ Toledo, Dept Environm Sci, Toledo, OH 43606 USA.
RP Sinsabaugh, RL (reprint author), Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA.
EM rlsinsab@unm.edu
FU NSF Ecosystem Sciences program [DEB-0918718]; Sevilleta LTER Program;
NSF [DEB-0315686, DBI-0420965, DBI-0521018]; Michigan Sea Grant College
Program under NOAA [NA76RG0133]; DOE BER Science Focus Area grant; DOE
BER [DE-SC0008088]
FX RLS acknowledges support from the NSF Ecosystem Sciences program
(DEB-0918718) and the Sevilleta LTER Program. KAK acknowledges support
from NSF (DEB-0315686, DBI-0420965, DBI-0521018) and the Michigan Sea
Grant College Program (NA76RG0133) under NOAA. CRK acknowledges support
from a DOE BER Science Focus Area grant. MEL and RLS acknowledge support
from DOE BER Grant number DE-SC0008088. Mention of trade names or
commercial products does not constitute endorsement or recommendation
for use.
NR 94
TC 15
Z9 15
U1 22
U2 123
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0168-2563
EI 1573-515X
J9 BIOGEOCHEMISTRY
JI Biogeochemistry
PD NOV
PY 2014
VL 121
IS 2
BP 287
EP 304
DI 10.1007/s10533-014-0030-y
PG 18
WC Environmental Sciences; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA AQ9BL
UT WOS:000343135800001
ER
PT J
AU Acerbo, AS
Kwaczala, AT
Yang, L
Judex, S
Miller, LM
AF Acerbo, Alvin S.
Kwaczala, Andrea T.
Yang, Lin
Judex, Stefan
Miller, Lisa M.
TI Alterations in Collagen and Mineral Nanostructure Observed in
Osteoporosis and Pharmaceutical Treatments Using Simultaneous Small- and
Wide-Angle X-ray Scattering
SO CALCIFIED TISSUE INTERNATIONAL
LA English
DT Article
DE Bone nanostructure; Osteoporosis; X-ray scattering; Synchrotron;
Microbeam mapping
ID BONE MINERALIZATION; FLUORIDE TREATMENT; CANCELLOUS BONE; CORTICAL BONE;
SODIUM-FLUORIDE; RATS; ALENDRONATE; CRYSTALS; STRENGTH; POROSITY
AB The influence of the macroscale material properties of bone on its mechanical competence has been extensively investigated, but less is known about possible contributions from bone's nanoscale material properties. These nanoscale properties, particularly the collagen network and the size and shape of hydroxyapatite mineral crystals, may be affected by aging, mechanical loading, and diseases including osteoporosis. Here, changes to the collagen and mineral properties of cortical bone induced by osteoporosis and subsequent pharmaceutical treatments were investigated by simultaneous small- and wide-angle X-ray scattering (SAXS/WAXS) microbeam mapping. Adult rats (6 months old) were ovariectomized and treated with alendronate, parathyroid hormone, or sodium fluoride, and compared to untreated ovariectomized and age-matched controls. Scattering data from tibial cortical bone showed that osteoporosis increased collagen alignment in existing intracortical bone, while this effect was mitigated in the alendronate and sodium fluoride groups though by different mechanisms. Further, mineral crystal lengths in newly formed cortical bone were smaller in animals with osteoporosis, but existing cortical bone was not altered. Subsequent treatment with alendronate mitigated changes in crystal lengths. Together, these results suggest that osteoporosis may alter the collagen alignment and mineral geometry in bone formed before and after the onset of this disease, and that osteoporosis treatments may differentially rescue these changes.
C1 [Acerbo, Alvin S.; Kwaczala, Andrea T.; Judex, Stefan; Miller, Lisa M.] SUNY Stony Brook, Dept Biomed Engn, Stony Brook, NY 11794 USA.
[Acerbo, Alvin S.; Yang, Lin; Miller, Lisa M.] Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA.
RP Miller, LM (reprint author), Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA.
EM lmiller@bnl.gov
FU National Institutes of Health [AR052778]; U.S. Department of Energy
[DE-AC02-98CH10886]
FX This work was funded by the National Institutes of Health Grant
AR052778. The National Synchrotron Light Source is supported by the U.S.
Department of Energy under Contract No. DE-AC02-98CH10886.
NR 46
TC 3
Z9 3
U1 2
U2 13
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0171-967X
EI 1432-0827
J9 CALCIFIED TISSUE INT
JI Calcif. Tissue Int.
PD NOV
PY 2014
VL 95
IS 5
BP 446
EP 456
DI 10.1007/s00223-014-9913-0
PG 11
WC Endocrinology & Metabolism
SC Endocrinology & Metabolism
GA AQ8OW
UT WOS:000343088500008
PM 25190190
ER
PT J
AU Dixon, DA
Katz, A
Arslan, I
Gates, BC
AF Dixon, David A.
Katz, Alexander
Arslan, Ilke
Gates, Bruce C.
TI Beyond Relationships Between Homogeneous and Heterogeneous Catalysis
SO CATALYSIS LETTERS
LA English
DT Editorial Material
DE Catalysis; Enzymatic catalysis; Heterogeneous catalysis; Homogeneous
catalysis; Singlesite catalysts
ID METATHESIS CATALYSTS; BOND-ENERGIES; NOBEL LECTURE; CLUSTERS; ZEOLITE;
LIGANDS; COMPLEX; SITE; SPECTROSCOPY; IR-6
C1 [Dixon, David A.] Univ Alabama, Dept Chem, Tuscaloosa, AL 35487 USA.
[Katz, Alexander] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.
[Arslan, Ilke] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
[Gates, Bruce C.] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
RP Gates, BC (reprint author), Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
EM bcgates@ucdavis.edu
NR 30
TC 1
Z9 1
U1 2
U2 53
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1011-372X
EI 1572-879X
J9 CATAL LETT
JI Catal. Lett.
PD NOV
PY 2014
VL 144
IS 11
BP 1785
EP 1789
DI 10.1007/s10562-014-1332-3
PG 5
WC Chemistry, Physical
SC Chemistry
GA AQ9BN
UT WOS:000343136100001
ER
PT J
AU Wang, HL
An, K
Sapi, A
Liu, FD
Somorjai, GA
AF Wang, Hailiang
An, Kwangjin
Sapi, Andras
Liu, Fudong
Somorjai, Gabor A.
TI Effects of Nanoparticle Size and Metal/Support Interactions in
Pt-Catalyzed Methanol Oxidation Reactions in Gas and Liquid Phases
SO CATALYSIS LETTERS
LA English
DT Article
DE Heterogeneous catalysis; Nanoparticles; Alcohol oxidation
ID OXYGEN REDUCTION REACTION; PLATINUM NANOPARTICLES; PARTICLE-SIZE;
MESOPOROUS SILICA; HYDROGENATION; SELECTIVITY; MECHANISM; SURFACES;
KINETICS; CARBON
AB We compare catalytic methanol oxidation reactions in the gas and liquid phases by focusing on the kinetic effects of platinum nanoparticle size and metal/support interactions. Under the reaction conditions at 60 A degrees C, methanol can be oxidized to multiple products including carbon dioxide (full-oxidation product), formaldehyde (partial-oxidation product) and methyl formate (partial-oxidation and coupling product). We use 2, 4, 6 and 8 nm platinum nanoparticles supported on mesoporous silica as catalysts to study the size effect, and 2.5 nm platinum nanoparticles supported on mesoporous SiO2, Co3O4, MnO2, Fe2O3, NiO and CeO2 to study the metal/oxide interface effect. We find that all three products are formed with comparable selectivities in the gas phase, but in the liquid phase formaldehyde is the dominant product. While the influence of size on activity is not substantial in the gas phase, the liquid-phase reaction rates monotonically increase by a factor of 6 in the size range of 2-8 nm. The reaction rates in the gas phase are dramatically affected by the strong interactions between the platinum nanoparticles and transition metal oxide supports. While the Pt/MnO2 is 135 times less active, the Pt/CeO2 is 12 times more active, both compared to the Pt/SiO2. However in the liquid phase, the support effect is less significant, with the most active catalyst Pt/MnO2 exhibiting an enhancement factor of 2.5 compared to the Pt/SiO2. Our results suggest that the kinetic effects of platinum nanoparticle size and metal/support interactions can be totally different between the solid/gas and solid/liquid interfaces even for the same chemical reaction.
C1 [Wang, Hailiang; An, Kwangjin; Sapi, Andras; Liu, Fudong; Somorjai, Gabor A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Wang, Hailiang; An, Kwangjin; Sapi, Andras; Liu, Fudong; Somorjai, Gabor A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Wang, Hailiang; An, Kwangjin; Sapi, Andras; Liu, Fudong; Somorjai, Gabor A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Somorjai, GA (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM somorjai@berkeley.edu
RI Liu, Fudong/H-2050-2012; Sapi, Andras/G-3527-2015
OI Sapi, Andras/0000-0001-6557-0731
FU Division of Chemical Sciences, Geological and Biosciences of the U.S.
Department of Energy [DE-AC02-05CH11231]; Philomathia Postdoctoral
Fellowship
FX This work is supported by the Director, Office of Basic Energy Sciences,
Materials Science and Engineering Division and the Division of Chemical
Sciences, Geological and Biosciences of the U.S. Department of Energy
under Contract No. DE-AC02-05CH11231. H. W. acknowledges support from
the Philomathia Postdoctoral Fellowship.
NR 30
TC 6
Z9 7
U1 10
U2 139
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1011-372X
EI 1572-879X
J9 CATAL LETT
JI Catal. Lett.
PD NOV
PY 2014
VL 144
IS 11
BP 1930
EP 1938
DI 10.1007/s10562-014-1347-9
PG 9
WC Chemistry, Physical
SC Chemistry
GA AQ9BN
UT WOS:000343136100018
ER
PT J
AU O'Connor, BL
Hamada, Y
Bowen, EE
Grippo, MA
Hartmann, HM
Patton, TL
Van Lonkhuyzen, RA
Carr, AE
AF O'Connor, Ben L.
Hamada, Yuki
Bowen, Esther E.
Grippo, Mark A.
Hartmann, Heidi M.
Patton, Terri L.
Van Lonkhuyzen, Robert A.
Carr, Adrianne E.
TI Quantifying the sensitivity of ephemeral streams to land disturbance
activities in arid ecosystems at the watershed scale
SO ENVIRONMENTAL MONITORING AND ASSESSMENT
LA English
DT Article
DE Ephemeral streams; Land disturbance; Arid ecosystems; Watershed
characteristics; Environmental assessment
ID UNITED-STATES; RIPARIAN VEGETATION; MANAGEMENT; RECHARGE; FLOOD;
ADJUSTMENT; LINKAGES; CHANNELS; ARIZONA; IMPACTS
AB Large areas of public lands administered by the Bureau of Land Management and located in arid regions of the southwestern United States are being considered for the development of utility-scale solar energy facilities. Land-disturbing activities in these desert, alluvium-filled valleys have the potential to adversely affect the hydrologic and ecologic functions of ephemeral streams. Regulation and management of ephemeral streams typically falls under a spectrum of federal, state, and local programs, but scientifically based guidelines for protecting ephemeral streams with respect to land-development activities are largely nonexistent. This study developed an assessment approach for quantifying the sensitivity to land disturbance of ephemeral stream reaches located in proposed solar energy zones (SEZs). The ephemeral stream assessment approach used publicly-available geospatial data on hydrology, topography, surficial geology, and soil characteristics, as well as high-resolution aerial imagery. These datasets were used to inform a professional judgment-based score index of potential land disturbance impacts on selected critical functions of ephemeral streams, including flow and sediment conveyance, ecological habitat value, and groundwater recharge. The total sensitivity scores (sum of scores for the critical stream functions of flow and sediment conveyance, ecological habitats, and groundwater recharge) were used to identify highly sensitive stream reaches to inform decisions on developable areas in SEZs. Total sensitivity scores typically reflected the scores of the individual stream functions; some exceptions pertain to groundwater recharge and ecological habitats. The primary limitations of this assessment approach were the lack of high-resolution identification of ephemeral stream channels in the existing National Hydrography Dataset, and the lack of mechanistic processes describing potential impacts on ephemeral stream functions at the watershed scale. The primary strength of this assessment approach is that it allows watershed-scale planning for low-impact development in arid ecosystems; the qualitative scoring of potential impacts can also be adjusted to accommodate new geospatial data, and to allow for expert and stakeholder input into decisions regarding the identification and potential avoidance of highly sensitive stream reaches.
C1 [O'Connor, Ben L.; Hamada, Yuki; Bowen, Esther E.; Grippo, Mark A.; Hartmann, Heidi M.; Patton, Terri L.; Van Lonkhuyzen, Robert A.; Carr, Adrianne E.] Argonne Natl Lab, Div Environm Sci, Argonne, IL 60439 USA.
RP O'Connor, BL (reprint author), Univ Illinois, Dept Civil & Mat Engn, Chicago, IL 60607 USA.
EM oconnorb@uic.edu
FU US Department of the Interior, Bureau of Land Management through US
Department of Energy [DE-AC02-06CH11357]
FX Funding for this project was supported by the US Department of the
Interior, Bureau of Land Management, under interagency agreement,
through US Department of Energy contract DE-AC02-06CH11357. We would
also like to thank two anonymous reviewers for comments that improved
the quality of this manuscript.
NR 52
TC 2
Z9 2
U1 4
U2 23
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0167-6369
EI 1573-2959
J9 ENVIRON MONIT ASSESS
JI Environ. Monit. Assess.
PD NOV
PY 2014
VL 186
IS 11
BP 7075
EP 7095
DI 10.1007/s10661-014-3912-5
PG 21
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA AQ8CU
UT WOS:000343051400008
PM 25129382
ER
PT J
AU Kratochwil, C
Giesel, FL
Bruchertseifer, F
Mier, W
Apostolidis, C
Boll, R
Murphy, K
Haberkorn, U
Morgenstern, A
AF Kratochwil, C.
Giesel, F. L.
Bruchertseifer, F.
Mier, W.
Apostolidis, C.
Boll, R.
Murphy, K.
Haberkorn, U.
Morgenstern, A.
TI Bi-213-DOTATOC receptor-targeted alpha-radionuclide therapy induces
remission in neuroendocrine tumours refractory to beta radiation: a
first-in-human experience
SO EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
LA English
DT Article
DE Targeted alpha therapy (TAT); Bi-213; Ac-225; DOTATOC
ID SOMATOSTATIN-ANALOG; MYELOID-LEUKEMIA; AC-225; GA-68-DOTATOC;
Y-90-DOTATOC; COMBINATION; METASTASES; DOSIMETRY; TOXICITY; ARTERIAL
AB Purpose Radiopeptide therapy using a somatostatin analogue labelled with a beta emitter such as Y-90/Lu-177-DOTATOC is a new therapeutic option in neuroendocrine cancer. Alternative treatments for patients with refractory disease are rare. Here we report the first-in-human experience with Bi-213-DOTATOC targeted alpha therapy (TAT) in patients pretreated with beta emitters.
Methods Seven patients with progressive advanced neuroendocrine liver metastases refractory to treatment with Y-90/Lu-177-DOTATOC were treated with an intraarterial infusion of Bi-213-DOTATOC, and one patient with bone marrow carcinosis was treated with a systemic infusion of Bi-213-DOTATOC. Haematological, kidney and endocrine toxicities were assessed according to CTCAE criteria. Radiological response was assessed with contrast-enhanced MRI and Ga-68-DOTATOC-PET/CT. More than 2 years of follow-up were available in seven patients.
Results The biodistribution of Bi-213-DOTATOC was evaluable with 440 keV gamma emission scans, and demonstrated specific tumour binding. Enduring responses were observed in all treated patients. Chronic kidney toxicity was moderate. Acute haematotoxicity was even less pronounced than with the preceding beta therapies.
Conclusion TAT can induce remission of tumours refractory to beta radiation with favourable acute and mid-term toxicity at therapeutic effective doses.
C1 [Kratochwil, C.; Giesel, F. L.; Mier, W.; Haberkorn, U.] Univ Heidelberg Hosp, Dept Nucl Med, D-69120 Heidelberg, Germany.
[Bruchertseifer, F.; Apostolidis, C.; Morgenstern, A.] Commiss European Communities, Inst Transuranium Elements, Karlsruhe, Germany.
[Boll, R.; Murphy, K.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Kratochwil, C (reprint author), Univ Heidelberg Hosp, Dept Nucl Med, INF 400, D-69120 Heidelberg, Germany.
EM clemens.kratochwil@t-online.de
RI Boll, Rose/C-4138-2016
OI Boll, Rose/0000-0003-2507-4834
NR 41
TC 33
Z9 33
U1 2
U2 20
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1619-7070
EI 1619-7089
J9 EUR J NUCL MED MOL I
JI Eur. J. Nucl. Med. Mol. Imaging
PD NOV
PY 2014
VL 41
IS 11
BP 2106
EP 2119
DI 10.1007/s00259-014-2857-9
PG 14
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA AQ8CX
UT WOS:000343051700014
PM 25070685
ER
PT J
AU Kapuscinski, KL
Farrell, JM
Stehman, SV
Boyer, GL
Fernando, DD
Teece, MA
Tschaplinski, TJ
AF Kapuscinski, Kevin L.
Farrell, John M.
Stehman, Stephen V.
Boyer, Gregory L.
Fernando, Danilo D.
Teece, Mark A.
Tschaplinski, Timothy J.
TI Selective herbivory by an invasive cyprinid, the rudd Scardinius
erythrophthalmus
SO FRESHWATER BIOLOGY
LA English
DT Article
DE macrophytes; phenolic compounds; rudd; selective herbivory
ID FRESH-WATER MACROPHYTES; P-COUMARIC ACID; GRASS CARP; AQUATIC
MACROPHYTES; FEEDING PREFERENCES; SUBMERGED MACROPHYTES; SPECIES
COMPOSITION; EXOTIC HERBIVORES; ROSMARINIC ACID; CAFFEIC ACID
AB 1. Herbivory by non-native animals is a problem of growing concern globally, especially for ecosystems where there were few native herbivores or where they have been replaced by non-natives. The rudd (Scardinius erythrophthalmus) is an omnivorous cyprinid (native to Europe) now very widespread due to human introductions, yet it is unknown whether the invasive rudd feeds selectively among aquatic macrophyte species common in North America.
2. We tested feeding selectivity by rudd using five species of aquatic macrophytes: Ceratophyllum demersum, Elodea canadensis, Najas flexilis, Stuckenia pectinata and Vallisneria americana. Fish were presented with known quantities of each macrophyte species in a randomized complete block design, and we measured the mean per cent mass remaining in each case. We also quantified differences in the chemical attributes of the five macrophyte species and determined whether feeding by rudd was related to dry matter content (DMC), per cent C by dry mass (% C), per cent N by dry mass (% N), and the concentrations of total soluble proteins, two organic acids (aconitic and oxalic acid), total soluble phenolic compounds (< 1000 Da), nine soluble phenolic metabolites and total phenolic compounds.
3. Rudd fed selectively, with consumption declining in the order N. flexilis > E. canadensis > S. pectinata > V. americana > C. demersum. Selection was positively related to % C and atomic C : N, but not DMC, % N or concentration of total soluble proteins, contrary to the expectation that rudd would select the most nutritious plants available. The concentration of aconitic acid was greatest in N. flexilis, a preferred macrophyte, contrary to the expectation that this compound provides resistance to herbivory. The concentration of oxalic acid, which negatively affects palatability, was highest in C. demersum, the least preferred macrophyte.
4. Selection was also positively related to the concentration of total (and some specific) soluble phenolic compounds. The concentrations of caffeic acid, trans-caftaric acid and quercetin were positively related to macrophyte preference by rudd, whereas concentrations of cis-4-O- and trans-4-O-ferulic acid glucoside were negatively related.
5. Selective feeding by rudd (which can be very numerous in North American fresh waters) could evidently alter macrophyte assemblages and hinder attempts to restore plant communities.
C1 [Kapuscinski, Kevin L.; Farrell, John M.; Fernando, Danilo D.] SUNY Coll Environm Sci & Forestry, Dept Environm & Forest Biol, Syracuse, NY 13210 USA.
[Stehman, Stephen V.] SUNY Coll Environm Sci & Forestry, Dept Forest & Nat Resources Management, Syracuse, NY 13210 USA.
[Boyer, Gregory L.; Teece, Mark A.] SUNY Coll Environm Sci & Forestry, Dept Chem, Syracuse, NY 13210 USA.
[Tschaplinski, Timothy J.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN USA.
RP Kapuscinski, KL (reprint author), Lake Super State Univ, Sch Biol Sci, CRW225,650 W Easterday Ave, Sault Sainte Marie, MI 49783 USA.
EM kkapuscinski@lssu.edu
OI Tschaplinski, Timothy/0000-0002-9540-6622
FU Niagara River Ecological Standing Committee, Fish and Wildlife Habitat
Enhancement and Restoration Fund
FX Alexander Karatayev provided access to the indoor laboratory at the
State University of New York-Buffalo State Great Lakes Center and Mark
Clapsadl provided expertise in setting up the laboratory, which made
this study possible. We thank Michael Wilkinson (New York State
Department of Environmental Conservation) for his assistance collecting
rudd, Andrew Panczykowski (State University of New York College of
Environmental Science and Forestry) for his assistance collecting rudd,
macrophytes, and data during the selection experiment and Robert Johnson
(Racine-Johnson Aquatic Ecologists) for verifying the species of
macrophytes used in this research. Kathleen Baier, Thomas Horton and
William Powell (State University of New York College of Environmental
Science and Forestry) provided essential access to laboratory equipment
and their expertise. We are grateful to Jessica Bouchard (State
University of New York College of Environmental Science and Forestry),
Jesse Crandall (State University of New York College of Environmental
Science and Forestry) and Nancy Engle (Oak Ridge National Laboratory)
for conducting analyses on the chemical attributes of macrophytes.
Comments from three anonymous referees greatly improved the final
version of this paper. A grant from the Niagara River Ecological
Standing Committee, Fish and Wildlife Habitat Enhancement and
Restoration Fund supported this research.
NR 63
TC 9
Z9 9
U1 3
U2 29
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0046-5070
EI 1365-2427
J9 FRESHWATER BIOL
JI Freshw. Biol.
PD NOV
PY 2014
VL 59
IS 11
BP 2315
EP 2327
DI 10.1111/fwb.12433
PG 13
WC Marine & Freshwater Biology
SC Marine & Freshwater Biology
GA AQ8BP
UT WOS:000343047000009
ER
PT J
AU Rieger, CG
Scheidt, DH
Smart, WD
AF Rieger, Craig G.
Scheidt, David H.
Smart, William D.
TI Guest Editorial: Introduction to the Special Issue on Resilient Control
Architectures and Systems
SO IEEE TRANSACTIONS ON CYBERNETICS
LA English
DT Editorial Material
C1 [Rieger, Craig G.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Scheidt, David H.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
[Smart, William D.] Oregon State Univ, Corvallis, OR 97331 USA.
RP Rieger, CG (reprint author), Idaho Natl Lab, Idaho Falls, ID 83415 USA.
NR 2
TC 1
Z9 1
U1 0
U2 1
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2168-2267
EI 2168-2275
J9 IEEE T CYBERNETICS
JI IEEE T. Cybern.
PD NOV
PY 2014
VL 44
IS 11
SI SI
BP 1994
EP 1996
DI 10.1109/TCYB.2014.2339951
PG 3
WC Computer Science, Artificial Intelligence; Computer Science, Cybernetics
SC Computer Science
GA AR1CT
UT WOS:000343319700001
ER
PT J
AU Garcia, HE
Lin, WC
Meerkov, SM
Ravichandran, MT
AF Garcia, Humberto E.
Lin, Wen-Chiao
Meerkov, Semyon M.
Ravichandran, Maruthi T.
TI Resilient Monitoring Systems: Architecture, Design, and Application to
Boiler/Turbine Plant
SO IEEE TRANSACTIONS ON CYBERNETICS
LA English
DT Article
DE Cyber attacks; data quality assessment; measure of resiliency; resilient
monitoring systems; sensor networks
AB Resilient monitoring systems, considered in this paper, are sensor networks that degrade gracefully under malicious attacks on their sensors, causing them to project misleading information. The goal of this paper is to design, analyze, and evaluate the performance of a resilient monitoring system intended to monitor plant conditions (normal or anomalous). The architecture developed consists of four layers: data quality assessment, process variable assessment, plant condition assessment, and sensor network adaptation. Each of these layers is analyzed by either analytical or numerical tools. The performance of the overall system is evaluated using a simplified boiler/turbine plant. The measure of resiliency is quantified based on the Kullback-Leibler divergence and shown to be sufficiently high in all scenarios considered.
C1 [Garcia, Humberto E.; Lin, Wen-Chiao] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Meerkov, Semyon M.; Ravichandran, Maruthi T.] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA.
RP Garcia, HE (reprint author), Idaho Natl Lab, Idaho Falls, ID 83415 USA.
EM humberto.garcia@inl.gov; wen-chiao.lin@inl.gov; smm@umich.edu;
marutrav@umich.edu
FU U.S. Department of Energy under DOE [DE-AC07-05ID14517]
FX This work was supported by the U.S. Department of Energy under DOE
Contract DE-AC07-05ID14517 and performed as a part of the
Instrumentation, Control, and Intelligent Systems (ICIS) initiative at
the Idaho National Laboratory. This paper was recommended by Associate
Editor W. Smart.
NR 25
TC 2
Z9 2
U1 0
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2168-2267
EI 2168-2275
J9 IEEE T CYBERNETICS
JI IEEE T. Cybern.
PD NOV
PY 2014
VL 44
IS 11
SI SI
BP 2010
EP 2023
DI 10.1109/TCYB.2014.2316003
PG 14
WC Computer Science, Artificial Intelligence; Computer Science, Cybernetics
SC Computer Science
GA AR1CT
UT WOS:000343319700003
PM 24816628
ER
PT J
AU Wijayasekara, D
Linda, O
Manic, M
Rieger, C
AF Wijayasekara, Dumidu
Linda, Ondrej
Manic, Milos
Rieger, Craig
TI FN-DFE: Fuzzy-Neural Data Fusion Engine for Enhanced Resilient
State-Awareness of Hybrid Energy Systems
SO IEEE TRANSACTIONS ON CYBERNETICS
LA English
DT Article
DE Artificial neural networks; data fusion; fuzzy logic systems; resilient
control systems; state-awareness
ID NUCLEAR-POWER-PLANT; MULTISENSOR DATA FUSION; DECISION-SUPPORT;
FAULT-DIAGNOSIS; EXPERT-SYSTEM; NETWORKS; IDENTIFICATION; PREDICTION;
ALGORITHM
AB Resiliency and improved state-awareness of modern critical infrastructures, such as energy production and industrial systems, is becoming increasingly important. As control systems become increasingly complex, the number of inputs and outputs increase. Therefore, in order to maintain sufficient levels of state-awareness, a robust system state monitoring must be implemented that correctly identifies system behavior even when one or more sensors are faulty. Furthermore, as intelligent cyber adversaries become more capable, incorrect values may be fed to the operators. To address these needs, this paper proposes a fuzzy-neural data fusion engine (FN-DFE) for resilient state-awareness of control systems. The designed FN-DFE is composed of a three-layered system consisting of: 1) traditional threshold based alarms; 2) anomalous behavior detector using self-organizing fuzzy logic system; and 3) artificial neural network-based system modeling and prediction. The improved control system state-awareness is achieved via fusing input data from multiple sources and combining them into robust anomaly indicators. In addition, the neural network-based signal predictions are used to augment the resiliency of the system and provide coherent state-awareness despite temporary unavailability of sensory data. The proposed system was integrated and tested with a model of the Idaho National Laboratory's hybrid energy system facility known as HYTEST. Experiment results demonstrate that the proposed FN-DFE provides timely plant performance monitoring and anomaly detection capabilities. It was shown that the system is capable of identifying intrusive behavior significantly earlier than conventional threshold-based alarm systems.
C1 [Wijayasekara, Dumidu; Manic, Milos] Univ Idaho, Dept Comp Sci, Idaho Falls, ID 83402 USA.
[Linda, Ondrej] Expedia Inc, Bellevue, WA 98004 USA.
[Rieger, Craig] Idaho Natl Lab, Idaho Falls, ID 83402 USA.
RP Wijayasekara, D (reprint author), Univ Idaho, Dept Comp Sci, Idaho Falls, ID 83402 USA.
EM dumidu.wijayasekara@gmail.com; olindaczech@gmail.com; misko@ieee.org;
craig.rieger@inl.gov
RI Wijayasekara, Dumidu/E-6346-2017
FU U.S. Department of Energy under DOE Idaho Operations Office
[DE-AC07-05ID14517]
FX This work was supported by the U.S. Department of Energy under DOE Idaho
Operations Office Contract DE-AC07-05ID14517. This paper was recommended
by Associate Editor W. Smart.
NR 41
TC 8
Z9 8
U1 2
U2 13
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2168-2267
EI 2168-2275
J9 IEEE T CYBERNETICS
JI IEEE T. Cybern.
PD NOV
PY 2014
VL 44
IS 11
SI SI
BP 2065
EP 2075
DI 10.1109/TCYB.2014.2323891
PG 11
WC Computer Science, Artificial Intelligence; Computer Science, Cybernetics
SC Computer Science
GA AR1CT
UT WOS:000343319700007
PM 24893372
ER
PT J
AU Bhatia, H
Pascucci, V
Bremer, PT
AF Bhatia, Harsh
Pascucci, Valerio
Bremer, Peer-Timo
TI The Natural Helmholtz-Hodge Decomposition for Open-Boundary Flow
Analysis
SO IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
LA English
DT Article
DE The Helmholtz-Hodge decomposition; vector fields; boundary conditions;
uniqueness; harmonic flows
ID DIRECT NUMERICAL-SIMULATION; VECTOR FIELD DECOMPOSITION; NAVIER-STOKES
EQUATIONS; PROJECTION METHOD; HEATED COFLOW; JET FLAME; STABILIZATION;
MOTION; IMAGE
AB The Helmholtz-Hodge decomposition (HHD), which describes a flow as the sum of an incompressible, an irrotational, and a harmonic flow, is a fundamental tool for simulation and analysis. Unfortunately, for bounded domains, the HHD is not uniquely defined, traditionally, boundary conditions are imposed to obtain a unique solution. However, in general, the boundary conditions used during the simulation may not be known known, or the simulation may use open boundary conditions. In these cases, the flow imposed by traditional boundary conditions may not be compatible with the given data, which leads to sometimes drastic artifacts and distortions in all three components, hence producing unphysical results. This paper proposes the natural HHD, which is defined by separating the flow into internal and external components. Using a completely data-driven approach, the proposed technique obtains uniqueness without assuming boundary conditions a priori. As a result, it enables a reliable and artifact-free analysis for flows with open boundaries or unknown boundary conditions. Furthermore, our approach computes the HHD on a point-wise basis in contrast to the existing global techniques, and thus supports computing inexpensive local approximations for any subset of the domain. Finally, the technique is easy to implement for a variety of spatial discretizations and interpolated fields in both two and three dimensions.
C1 [Bhatia, Harsh; Pascucci, Valerio; Bremer, Peer-Timo] Univ Utah, Sci Comp & Imaging Inst, Salt Lake City, UT 84112 USA.
[Bhatia, Harsh; Bremer, Peer-Timo] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Bhatia, H (reprint author), Univ Utah, Sci Comp & Imaging Inst, Salt Lake City, UT 84112 USA.
EM hbhatia@sci.utah.edu; pascucci@sci.utah.edu; ptbremer@sci.utah.edu
FU US Department of Energy (DOE) by Lawrence Livermore National Laboratory
(LLNL) [DE-AC52-07NA27344. LLNL-JRNL-644755]
FX The authors are grateful to Jacqueline Chen from the Sandia National
Laboratory for the data used for Figs. 8 and 11. The data used in Fig. 7
has been simulated by Mahsa Mirzargar using Nektar++ [44], and the data
in Fig. 10 by Alexander Wiebel using NaSt3DGP. The authors also thank
Mathew Maltude from the Climate, Ocean and Sea Ice Modelling program at
Los Alamos National Laboratory and the BER Office of Science UV-CDAT
team for providing us access to the ocean data from Fig. 12. This work
was performed under the auspices of the US Department of Energy (DOE) by
Lawrence Livermore National Laboratory (LLNL) under contract
DE-AC52-07NA27344. LLNL-JRNL-644755.
NR 42
TC 3
Z9 3
U1 1
U2 4
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1077-2626
EI 1941-0506
J9 IEEE T VIS COMPUT GR
JI IEEE Trans. Vis. Comput. Graph.
PD NOV
PY 2014
VL 20
IS 11
BP 1566
EP 1578
DI 10.1109/TVCG.2014.2312012
PG 13
WC Computer Science, Software Engineering
SC Computer Science
GA AQ7OX
UT WOS:000343009400008
PM 26355335
ER
PT J
AU Carriero, A
Zimmermann, EA
Shefelbine, SJ
Ritchie, RO
AF Carriero, Alessandra
Zimmermann, Elizabeth A.
Shefelbine, Sandra J.
Ritchie, Robert O.
TI A methodology for the investigation of toughness and crack propagation
in mouse bone
SO JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
LA English
DT Article
DE Bone fracture; Mouse bone; Fracture mechanics; Crack path; Crack
initiation; Brittle bone; Crack growth
ID HUMAN CORTICAL BONE; FRACTURE-TOUGHNESS; OSTEOGENESIS IMPERFECTA;
MICROCRACKING; MICRODAMAGE; MORPHOLOGY; POROSITY; FAILURE; BRITTLE;
GROWTH
AB Bone fracture is a health concern for those with aged bone and brittle bone diseases. Mouse bone is widely used as a model of human bone, especially to investigate preclinical treatment strategies. However, little is known about the mechanisms of mouse bone fracture and its similarities and differences from fracture in human bone. In this work we present a methodology to investigate the fracture toughness during crack initiation and crack propagation for mouse bone.
Mouse femora were dissected, polished on their periosteal surface, notched on the posterior surface at their mid-diaphysis, and tested in three-point bending under displacement control at a rate of 0.1 mm/min using an in situ loading stage within an environmental scanning electron microscope.
We obtained high-resolution real-time imaging of the crack initiation and propagation in mouse bone. From the images we can measure the crack extension at each step of the crack growth and calculate the toughness of the bone (in terms of stress intensity factor (K) and work to fracture (W-f)) as a function of stable crack length (Delta a), thus generating a resistance curve for the mouse bone.
The technique presented here provides insight into the evolution of microdamage and the toughening mechanisms that resist crack propagation, which are essential for preclinical development of treatments to enhance bone quality and combat fracture risk. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Carriero, Alessandra; Shefelbine, Sandra J.] Univ London Imperial Coll Sci Technol & Med, Dept Bioengn, London SW7 2AZ, England.
[Carriero, Alessandra; Zimmermann, Elizabeth A.; Ritchie, Robert O.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Carriero, Alessandra; Zimmermann, Elizabeth A.; Ritchie, Robert O.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
RP Carriero, A (reprint author), Univ London Imperial Coll Sci Technol & Med, Royal Sch Mines, Dept Bioengn, South Kensington Campus, London SW7 2AZ, England.
EM a.carriero@imperial.ac.uk
RI Ritchie, Robert/A-8066-2008; Zimmermann, Elizabeth/A-4010-2015;
OI Ritchie, Robert/0000-0002-0501-6998; Zimmermann,
Elizabeth/0000-0001-9927-3372; Carriero, Alessandra/0000-0001-8103-4795
FU Royal Academy of Engineering; Elsie Widdowson Foundation, UK; National
Institute of Health (NIH/NIDCR) [5R01 DE015633]
FX This work was performed primarily at the Lawrence Berkeley National
Laboratory. It was funded by The Royal Academy of Engineering (Global
Research Award for A.C.), by the Elsie Widdowson Foundation, UK (for
S.J.S), and by the National Institute of Health (NIH/NIDCR) under Grant
no. 5R01 DE015633 (for E.A.Z. and R.O.R.).
NR 40
TC 6
Z9 6
U1 4
U2 25
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1751-6161
EI 1878-0180
J9 J MECH BEHAV BIOMED
JI J. Mech. Behav. Biomed. Mater.
PD NOV
PY 2014
VL 39
BP 38
EP 47
DI 10.1016/j.jmbbm.2014.06.017
PG 10
WC Engineering, Biomedical; Materials Science, Biomaterials
SC Engineering; Materials Science
GA AR1IL
UT WOS:000343338800004
PM 25084121
ER
PT J
AU Beck, MW
Tomcko, CM
Valley, RD
Staples, DF
AF Beck, Marcus W.
Tomcko, Cynthia M.
Valley, Ray D.
Staples, David F.
TI Analysis of macrophyte indicator variation as a function of sampling,
temporal, and stressor effects
SO ECOLOGICAL INDICATORS
LA English
DT Article
DE Climate; Development; Lake monitoring; Macrophytes; Power; Variation
ID BIOTIC INTEGRITY; SUBMERGED MACROPHYTES; MINNESOTA LAKES; EUROPEAN
LAKES; INDEX; PERFORMANCE
AB Biological indicators that signal changes in lake condition are essential tools for guiding resource management decisions. Macrophyte-based indicators have traditionally been selected and evaluated in the context of nutrient-based stressors, although the need to evaluate indicators that are sensitive to climate stressors has been increasingly relevant. Moreover, indicators should ideally exhibit minimal sampling variation and have low natural temporal variation so there is high power to detect changes in the mean value over time. Eight macrophyte indicators were estimated in 23 Minnesota (USA) lakes using four years of repeated surveys to estimate sampling and temporal variation, response to development (phosphorus concentration) and climate stress (annual growing degree days), and power to detect significant change at various annual sampling intervals. Indicators included a macrophyte index of biotic integrity, floristic quality index, maximum depth of growth, total species richness, common species richness, mean richness, and frequency occurrence of rooted species and Chara sp. Overall, regression and smoothed additive models indicated significant relationships of indicators to total lake phosphorus and mean annual growing degree days. The macrophyte index of biotic integrity, floristic quality index, and the frequency rooted species had minimal sampling variation in this study, were responsive to development or climate stress, and had low annual variation (coefficients of variation 0.08, 0.10, and 0.19, respectively) resulting in high to moderate power (>50%) for detecting significant change over a 20 year period. Results from these analyses will facilitate the use of precise and powerful indicators that respond to stressors that are of concern for the management of freshwater glacial lakes. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Beck, Marcus W.] Univ Minnesota, Conservat Biol Grad Program, St Paul, MN 55108 USA.
[Tomcko, Cynthia M.] Minnesota Dept Nat Resources, Div Fisheries & Wildlife, Grand Rapids, MN 55744 USA.
[Valley, Ray D.] Minnesota Dept Nat Resources, Div Fisheries & Wildlife, St Paul, MN 55744 USA.
[Staples, David F.] Minnesota Dept Nat Resources, Div Fisheries & Wildlife, Forest Lake, MN 55025 USA.
RP Beck, MW (reprint author), US EPA, ORISE Res Participat Program, Natl Hlth & Environm Effects Res Lab, Gulf Ecol Div, 1 Sabine Isl Dr, Gulf Breeze, FL 32561 USA.
EM beck.marcus@epa.gov; cindy.tomcko@state.mn.us; ray.valley@navico.com;
david.staples@state.mn.us
NR 33
TC 3
Z9 3
U1 3
U2 25
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1470-160X
EI 1872-7034
J9 ECOL INDIC
JI Ecol. Indic.
PD NOV
PY 2014
VL 46
BP 323
EP 335
DI 10.1016/j.ecolind.2014.07.002
PG 13
WC Biodiversity Conservation; Environmental Sciences
SC Biodiversity & Conservation; Environmental Sciences & Ecology
GA AQ2YO
UT WOS:000342656100034
ER
PT J
AU Saeed, LM
Mahmood, M
Pyrek, SJ
Fahmi, T
Xu, Y
Mustafa, T
Nima, ZA
Bratton, SM
Casciano, D
Dervishi, E
Radominska-Pandya, A
Biris, AS
AF Saeed, Lamya M.
Mahmood, Meena
Pyrek, Sebastian J.
Fahmi, Tariq
Xu, Yang
Mustafa, Thikra
Nima, Zeid A.
Bratton, Stacie M.
Casciano, Dan
Dervishi, Enkeleda
Radominska-Pandya, Anna
Biris, Alexandru S.
TI Single-walled carbon nanotube and graphene nanodelivery of gambogic acid
increases its cytotoxicity in breast and pancreatic cancer cells
SO JOURNAL OF APPLIED TOXICOLOGY
LA English
DT Article
DE Cancer nanotechnology; Gambogic Acid; Graphene; Single-Walled Carbon
Nanotubes; Nanodelivery; Breast cancer; Pancreatic cancer
ID MAGNETIC FE3O4 NANOPARTICLES; GARCINIA XANTHONES; LIPID DROPLETS;
LEUKEMIA-CELLS; NILE RED; APOPTOSIS; DELIVERY; DRUG; PROLIFERATION;
COMBINATION
AB Graphene and single-walled carbon nanotubes were used to deliver the natural low-toxicity drug gambogic acid (GA) to breast and pancreatic cancer cells in vitro, and the effectiveness of this complex in suppressing cellular integrity was assessed. Cytotoxicity was assessed by measuring lactate dehydrogenase release, mitochondria dehydrogenase activity, mitochondrial membrane depolarization, DNA fragmentation, intracellular lipid content, and membrane permeability/caspase activity. The nanomaterials showed no toxicity at the concentrations used, and the antiproliferative effects of GA were significantly enhanced by nanodelivery. The results suggest that these complexes inhibit human breast and pancreatic cancer cells grown in vitro. This analysis represents a first step toward assessing their effectiveness in more complex, targeted, nanodelivery systems. Copyright (c) 2014 John Wiley & Sons, Ltd.
C1 [Saeed, Lamya M.; Mahmood, Meena; Xu, Yang; Mustafa, Thikra; Nima, Zeid A.; Casciano, Dan; Dervishi, Enkeleda; Biris, Alexandru S.] Univ Arkansas, Ctr Integrat Nanotechnol Sci, Little Rock, AR 72204 USA.
[Pyrek, Sebastian J.; Fahmi, Tariq; Bratton, Stacie M.; Radominska-Pandya, Anna] Univ Arkansas Med Sci, Coll Med, Dept Biochem & Mol Biol, Little Rock, AR 72205 USA.
[Dervishi, Enkeleda] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, Los Alamos, NM 87544 USA.
[Mustafa, Thikra] Univ Baghdad, Coll Sci Women, Dept Biol, Baghdad, Iraq.
RP Radominska-Pandya, A (reprint author), Univ Arkansas, Ctr Integrat Nanotechnol Sci, Little Rock, AR 72204 USA.
EM radominskaanna@uams.edu; asbiris@ualr.edu
FU Department of Defense [X81XWH-11-1-0795]; Arkansas Breast Cancer
Research Program/University of Arkansas for Medical Sciences
Translational Research Institute Clinical Translational Science Award
[UL1TR000039]
FX This work was funded by grants from the Department of Defense
(X81XWH-11-1-0795) to A.S.B. and A.R.-P., and from the Arkansas Breast
Cancer Research Program/University of Arkansas for Medical Sciences
Translational Research Institute Clinical Translational Science Award
(UL1TR000039) to A.R.-P.
NR 56
TC 13
Z9 13
U1 7
U2 61
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0260-437X
EI 1099-1263
J9 J APPL TOXICOL
JI J. Appl. Toxicol.
PD NOV
PY 2014
VL 34
IS 11
BP 1188
EP 1199
DI 10.1002/jat.3018
PG 12
WC Toxicology
SC Toxicology
GA AQ4GF
UT WOS:000342750800008
PM 25220893
ER
PT J
AU Panyala, NR
Sturzbecher-Hoehne, M
Abergel, RJ
AF Panyala, Nagender R.
Sturzbecher-Hoehne, Manuel
Abergel, Rebecca J.
TI Identification of process related trace level impurities in the actinide
decorporation agent 3,4,3-LI(1,2-HOPO): Nozzle-skimmer fragmentation via
ESI LC-QTOFMS
SO JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
LA English
DT Article
DE 3,4,3-LI(1,2-HOPO) ligand; LC-MS/MS; Structural elucidation; Method
development; Fragmentation
ID MASS-SPECTROMETRY; ELECTROSPRAY-IONIZATION; SEQUESTERING AGENTS;
DISSOCIATION; CHELATION; EFFICACY; LIGANDS; COMPLEX; IONS; HPLC
AB 3,4,3-LI(1,2-HOPO) is a chelating ligand and decorporation agent that can remove radioactive lanthanides and actinides from the body. Identification of trace impurities in drug samples is gaining much interest due to their significant influence on drug activity. In this study, trace impurities were detected in manufactured lots of 3,4,3-LI(1,2-HOPO) by a developed method of liquid chromatography coupled with photo-diode array UV detection and electrospray ionization-quadrupole time of flight mass spectrometry (LC-QTOFMS), via induced-in-source or collision-induced mass fragmentation (nozzle-skimmer fragmentation). Molecular ions were fragmented within the nozzle-skimmer region of electrospray ionization (ESI) mass spectrometer equipped with a Time of Flight detector. Eight major (detected at levels higher than a 0.1% threshold) and seven minor trace impurities were identified. The respective structures of these impurities were elucidated via analysis of the generated fragment ions using mass fragmentation and elemental composition software. Proposed structures of impurities were further confirmed via isotopic modeling. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Panyala, Nagender R.; Sturzbecher-Hoehne, Manuel; Abergel, Rebecca J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Abergel, RJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
EM rjabergel@lbl.gov
FU National Institutes of Health/National Institute of Allergy and
Infectious Diseases Medical Countermeasures Against Radiological Threats
(MCART) Consortium through the U.S. Department of Energy
[HHSN272201000046C, DE-AC02-05CH11231]
FX This work was supported by the National Institutes of Health/National
Institute of Allergy and Infectious Diseases Medical Countermeasures
Against Radiological Threats (MCART) Consortium (Contract
#HHSN272201000046C to the University of Maryland School of Medicine),
through the U.S. Department of Energy under Contract #DE-AC02-05CH11231.
NR 35
TC 1
Z9 1
U1 2
U2 14
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0731-7085
EI 1873-264X
J9 J PHARMACEUT BIOMED
JI J. Pharm. Biomed. Anal.
PD NOV
PY 2014
VL 100
BP 157
EP 166
DI 10.1016/j.jpba.2014.08.004
PG 10
WC Chemistry, Analytical; Pharmacology & Pharmacy
SC Chemistry; Pharmacology & Pharmacy
GA AQ7TC
UT WOS:000343021100021
PM 25165012
ER
PT J
AU Hapeman, P
Latch, EK
Rhodes, OE
Kilpatrick, CW
AF Hapeman, Paul
Latch, Emily K.
Rhodes, Olin E.
Kilpatrick, Charles W.
TI When recent and evolutionary histories meet: deciphering temporal events
from contemporary patterns of mtDNA from fishers (Martes pennanti) in
north-eastern North America
SO JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH
LA English
DT Article
DE Fragmentation; Martes pennanti; nucleotide diversity; spatial analysis
of molecular variance
ID DNA POLYMORPHISM DATA; POPULATION-STRUCTURE; MITOCHONDRIAL-DNA;
POSTGLACIAL COLONIZATION; CONSERVATION GENETICS; PLEISTOCENE REFUGIA;
STATISTICAL TESTS; PHYLOGEOGRAPHY; NEUTRALITY; DISPERSAL
AB The current spatial distribution of genetic lineages across a region should reflect the complex interplay of both historical and contemporary processes. Postglacial expansion and recolonization in the distant past, in combination with more recent events with anthropogenic effects such as habitat fragmentation and overexploitation, can help shape the pattern of genetic structure observed in contemporary populations. In this study, we characterize the spatial distribution of mtDNA lineages for fisher (Martes pennanti) in north-eastern North America. The history of fishers in this region is well understood and thus provides an opportunity to interpret patterns of genetic structure in the light of known historical (e. g. recolonization from glacial refugia) and contemporary events (e. g. reintroductions, fragmentation and natural recolonization). Our results indicate that fishers likely recolonized north-eastern North America from a single Pleistocene refugium. Three genetically distinct remnant populations persisted through the population declines of the 1800s and served as sources for multiple reintroductions and natural recolonizations that have restored the fisher throughout north-eastern North America. However, the spatial genetic structure of genetic lineages across the region still reflects the three remnant populations.
C1 [Hapeman, Paul] Cent Connecticut State Univ, Dept Biol, New Britain, CT 06050 USA.
[Latch, Emily K.] Univ Wisconsin, Dept Biol Sci, Milwaukee, WI 53201 USA.
[Rhodes, Olin E.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA.
[Kilpatrick, Charles W.] Univ Vermont, Dept Biol, Burlington, VT USA.
RP Hapeman, P (reprint author), Cent Connecticut State Univ, Dept Biol, New Britain, CT 06050 USA.
EM hapeman@ccsu.edu; latch@uwm.edu; rhodes@srel.uga.edu; wkilpatr@uvm.edu
FU Norcross Wildlife Foundation; University of Vermont
FX This research was funded by the A.V. Stout Fund c/o Norcross Wildlife
Foundation and the University of Vermont. Many people deserve thanks for
contributing time, effort, samples and resources to this project
including Mark Brown, Scott Smith and New York Department of
Environmental Conservation, Charlie Brown and Rhode Island Division of
Fish and Wildlife, Eric Orff, Will Staats and the New Hampshire Fish and
Game Department, Kim Royar and Vermont Fish and Wildlife, Paul Rego and
employees at Connecticut Department of Environmental Protection, Chrissy
Henner, Tony Gola and Massachusetts Division of Fish and Wildlife, Wally
Jakubas and Maine Department of Inland Fisheries and Wildlife. The
following trappers in Maine provided tissue samples: Greg Gallant, Rick
Crowe, Tom Stevens, Eugene Worster and Harry Seekins. Rod Williams at
Purdue University provided DNA samples and information regarding his
research on fishers. Jenny Fike assisted with some of the laboratory
work at Purdue University. Sequence data from New Brunswick were
provided by Rob Drew and Jim Hallet at Washington State University.
NR 63
TC 1
Z9 1
U1 4
U2 28
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0947-5745
EI 1439-0469
J9 J ZOOL SYST EVOL RES
JI J. Zool. Syst. Evol. Res.
PD NOV
PY 2014
VL 52
IS 4
BP 331
EP 337
DI 10.1111/jzs.12060
PG 7
WC Evolutionary Biology; Zoology
SC Evolutionary Biology; Zoology
GA AQ5IQ
UT WOS:000342841700008
ER
PT J
AU Murshed, MM
Mendive, CB
Curti, M
Nenert, G
Kalita, PE
Lipinska, K
Cornelius, AL
Huq, A
Gesing, TM
AF Murshed, M. Mangir
Mendive, Cecilia B.
Curti, Mariano
Nenert, Gwilherm
Kalita, Patricia E.
Lipinska, Kris
Cornelius, Andrew L.
Huq, Ashfia
Gesing, Thorsten M.
TI Anisotropic lattice thermal expansion of PbFeBO4: A study by X-ray and
neutron diffraction, Raman spectroscopy and DFT calculations
SO MATERIALS RESEARCH BULLETIN
LA English
DT Article
DE Inorganic compounds; Raman spectroscopy; X-ray diffraction; Thermal
expansion; Equations-of-state
ID PBMBO4 M; MAGNETIC-PROPERTIES; CRYSTAL-STRUCTURE; OPTICAL PHONONS; MN;
FE; CR
AB The lattice thermal expansion of mullite-type PbFeBO4 is presented in this study. The thermal expansion coefficients of the metric parameters were obtained from composite data collected from temperature-dependent neutron and X-ray powder diffraction between 10 K and 700 K. The volume thermal expansion was modeled using extended Gruneisen first-order approximation to the zero-pressure equation of state. The additive frame of the model includes harmonic, quasi-harmonic and intrinsic anharmonic potentials to describe the change of the internal energy as a function of temperature. The unit-cell volume at zero-pressure and OK was optimized during the OFT simulations. Harmonic frequencies of the optical Raman modes at the Gamma-point of the Brillouin zone at OK were also calculated by DFT, which help to assign and crosscheck the experimental frequencies. The low-temperature Raman spectra showed significant anomaly in the antiferromagnetic regions, leading to softening or hardening of some phonons. Selected modes were analyzed using a modified Klemens model. The shift of the frequencies and the broadening of the line-widths helped to understand the anharmonic vibrational behaviors of the PbO4, FeO6 and BO3 polyhedra as a function of temperature. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Murshed, M. Mangir; Gesing, Thorsten M.] Univ Bremen, Inst Anorgan Chem, D-28359 Bremen, Germany.
[Mendive, Cecilia B.; Curti, Mariano] Univ Nacl Mar del Plata, Fac Ciencias Exactas & Nat, Dept Quim, Mar Del Plata, Buenos Aires, Argentina.
[Nenert, Gwilherm] Inst Laue Langevin, F-38042 Grenoble, France.
[Kalita, Patricia E.; Cornelius, Andrew L.] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
[Kalita, Patricia E.; Cornelius, Andrew L.] Univ Nevada, High Pressure Sci & Engn Ctr, Las Vegas, NV 89154 USA.
[Lipinska, Kris] Univ Nevada, Dept Mech Engn, Las Vegas, NV 89154 USA.
[Huq, Ashfia] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA.
RP Murshed, MM (reprint author), Univ Bremen, Inst Anorgan Chem, Leobener Str, D-28359 Bremen, Germany.
EM murshed@uni-bremen.de
RI Cornelius, Andrew/A-9837-2008; Huq, Ashfia/J-8772-2013;
OI Huq, Ashfia/0000-0002-8445-9649; Curti, Mariano/0000-0002-3721-4358
FU Deutsche Forschungsgemeinschaft (DFG) [GE1981/4-1, GE1981/3-1];
Scientific User Facilities Division, Office of Basic Energy Sciences, US
Department of Energy; DOE-EERE [DE-FG 3606GO8636, EE-0000269]; DOE
[DEFG36-05GO08502]; US Department of Energy, National Nuclear Security
Administration [DE-FC08-01 NV14049]; ANPCyT (Arg.) [PICT-2683]; CONICET
FX We gratefully acknowledge the Deutsche Forschungsgemeinschaft (DFG) for
the financial support through the mullite-LEP project GE1981/4-1. TMG
especially acknowledges the DFG for a support in the Heisenberg program
(GE1981/3-1). Part of the research conducted at ORNL's Spallation
Neutron Source was sponsored by the Scientific User Facilities Division,
Office of Basic Energy Sciences, US Department of Energy. High-pressure
Raman spectroscopy in diamond anvil cell was carried out using
experimental facilities of FAME-Tech Labs (University of Nevada Las
Vegas, Dept. of Mechanical Engineering) which are supported by DOE-EERE
under Award No. DE-FG 3606GO8636 and Award No. EE-0000269. Work at UNLV
is supported by DOE award No. DEFG36-05GO08502. The UNLV, HiPSEC is
supported by the US Department of Energy, National Nuclear Security
Administration, under Cooperative Agreement DE-FC08-01 NV14049. CBM is a
member of the research staff of CONICET and thanks ANPCyT (Arg.) for the
financial support PICT-2683. MC is grateful to CONICET for the doctoral
scholarship.
NR 26
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U1 1
U2 24
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0025-5408
EI 1873-4227
J9 MATER RES BULL
JI Mater. Res. Bull.
PD NOV
PY 2014
VL 59
BP 170
EP 178
DI 10.1016/j.materresbull.2014.07.005
PG 9
WC Materials Science, Multidisciplinary
SC Materials Science
GA AQ6XA
UT WOS:000342956000028
ER
PT J
AU Jess, S
Kildea, S
Moody, A
Rennick, G
Murchie, AK
Cooke, LR
AF Jess, Stephen
Kildea, Steven
Moody, Aidan
Rennick, Gordon
Murchie, Archie K.
Cooke, Louise R.
TI European Union policy on pesticides: implications for agriculture in
Ireland
SO PEST MANAGEMENT SCIENCE
LA English
DT Review
DE pesticides; EU policy; agriculture; integrated pest management;
sustainability
ID MYCOSPHAERELLA-GRAMINICOLA; WINTER-WHEAT; RESISTANCE; BLOTCH
AB European Community (EC) legislation has limited the availability of pesticide active substances used in effective plant protection products. The Pesticide Authorisation Directive 91/414/EEC introduced the principle of risk assessment for approval of pesticide active substances. This principle was modified by the introduction of Regulation (EC) 1107/2009, which applies hazard, the intrinsic toxicity of the active substance, rather than risk, the potential for hazard to occur, as the approval criterion. Potential impacts of EC pesticide legislation on agriculture in Ireland are summarised. While these will significantly impact on pesticide availability in the medium to long term, regulations associated with water quality (Water Framework Directive 2000/60/EC and Drinking Water Directive 1998/83/EC) have the potential to restrict pesticide use more immediately, as concerns regarding public health and economic costs associated with removing pesticides from water increase. This rationale will further reduce the availability of effective pesticide active substances, directly affecting crop protection and increasing pesticide resistance within pest and disease populations. In addition, water quality requirements may also impact on important active substances used in plant protection in Ireland. The future challenge for agriculture in Ireland is to sustain production and profitability using reduced pesticide inputs within a framework of integrated pest management. (C) 2014 Society of Chemical Industry
C1 [Jess, Stephen; Murchie, Archie K.; Cooke, Louise R.] Agrifood & Biosci Inst, Sustainable Agrifood Sci Div, Belfast BT9 5PX, Antrim, North Ireland.
[Kildea, Steven] TEAGASC, Oak Pk Crops Res Ctr, Dept Crop Sci, Carlow, Ireland.
[Moody, Aidan; Rennick, Gordon] Dept Agr Food & theMarine, Pesticide Registrat Div, Celbridge, Kildare, Ireland.
[Moody, Aidan; Rennick, Gordon] Dept Agr Food & theMarine, Control Div, Celbridge, Kildare, Ireland.
RP Jess, S (reprint author), Agrifood & Biosci Inst, Sustainable Agrifood Sci Div, 18a Newforge Lane, Belfast BT9 5PX, Antrim, North Ireland.
EM stephen.jess@afbini.gov.uk
FU Department of Agriculture and Rural Development (Northern Ireland)
FX The authors are grateful to the Department of Agriculture and Rural
Development (Northern Ireland) for funding this review. They also
acknowledge the staff of the Agri-Food and Biosciences Institute,
Pesticide Usage Monitoring Group, for access to their datasets.
NR 33
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Z9 16
U1 3
U2 69
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1526-498X
EI 1526-4998
J9 PEST MANAG SCI
JI Pest Manag. Sci.
PD NOV
PY 2014
VL 70
IS 11
BP 1646
EP 1654
DI 10.1002/ps.3801
PG 9
WC Agronomy; Entomology
SC Agriculture; Entomology
GA AQ5LN
UT WOS:000342850800002
PM 24753219
ER
PT J
AU Keck, RE
de Mare, M
Churchfield, MJ
Lee, S
Larsen, G
Aagaard Madsen, H
AF Keck, Rolf-Erik
de Mare, Martin
Churchfield, Matthew J.
Lee, Sang
Larsen, Gunner
Aagaard Madsen, Helge
TI On atmospheric stability in the dynamic wake meandering model
SO WIND ENERGY
LA English
DT Article
DE atmospheric stability; wake modelling; wake meandering; dynamic wake
meandering model; wake-added turbulence; wake dynamics; wind power
ID WIND TURBINE WAKES; POWER-LAW EXPONENT; SURFACE-ROUGHNESS; LAYER
TURBULENCE; BOUNDARY-LAYER; PROFILE; SIMULATION
AB The present study investigates a new approach for capturing the effects of atmospheric stability on wind turbine wake evolution and wake meandering by using the dynamic wake meandering model. The most notable impact of atmospheric stability on the wind is the changes in length and velocity scales of the atmospheric turbulence. The length and velocity scales in the turbulence are largely responsible for the way in which wind turbine wakes meander as they convect downstream. The hypothesis of the present work is that appropriate turbulence scales can be extracted from the oncoming atmospheric turbulence spectra and applied to the dynamic wake meandering model to capture the correct wake meandering behaviour. The ambient turbulence in all stability classes is generated using the Mann turbulence model, where the effects of non-neutral atmospheric stability are approximated by the selection of input parameters. In order to isolate the effect of atmospheric stability, simulations of neutral and unstable atmospheric boundary layers using large-eddy simulation are performed at the same streamwise turbulence intensity level. The turbulence intensity is kept constant by calibrating the surface roughness in the computational domain. The changes in the turbulent length scales due to the various atmospheric stability states impact the wake meandering characteristics and thus the power generation by the individual turbines. The proposed method is compared with results from both large-eddy simulation coupled with an actuator line model and field measurements, where generally good agreement is found with respect to the velocity, turbulence intensity and power predictions. Copyright (c) 2013 John Wiley & Sons, Ltd.
C1 [Keck, Rolf-Erik; de Mare, Martin] Vestas Wind Syst AS, Rotor Syst, DK-4000 Roskilde, Denmark.
[Keck, Rolf-Erik; de Mare, Martin; Larsen, Gunner; Aagaard Madsen, Helge] Riso DTU Natl Lab Sustainable Energy, Wind Energy Dept, DK-4000 Roskilde, Denmark.
[Churchfield, Matthew J.; Lee, Sang] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Keck, RE (reprint author), Riso DTU Natl Lab Sustainable Energy, Wind Energy Dept, DK-4000 Roskilde, Denmark.
EM rolf.keck@gmail.com
OI Aagaard Madsen , Helge/0000-0002-4647-3706
NR 38
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Z9 15
U1 1
U2 6
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1095-4244
EI 1099-1824
J9 WIND ENERGY
JI Wind Energy
PD NOV
PY 2014
VL 17
IS 11
BP 1689
EP 1710
DI 10.1002/we.1662
PG 22
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA AQ6IT
UT WOS:000342915100005
ER
PT J
AU Mills, AD
Wiser, RH
AF Mills, A. D.
Wiser, R. H.
TI Changes in the economic value of wind energy and flexible resources at
increasing penetration levels in the Rocky Mountain Power Area
SO WIND ENERGY
LA English
DT Article
DE economic valuation; flexibility; real-time pricing; storage; wind
integration
ID MARKET PRICES; GENERATION; GERMANY; IMPACTS
AB We use a consistent economic framework to estimate the long-run economic value of wind while including operational constraints for conventional generation and hourly variation in wind and load. Day-ahead forecast errors in wind are corrected in the real-time, after commitment decisions for many thermal generators have already been made. The framework is used to estimate the change in the marginal economic value of wind with increasing penetration in the Rocky Mountain Power Area of the USA. We also evaluate the marginal economic benefit to wind energy of implementing several strategies to manage wind energy variability and uncertainty: more flexible conventional generation, real-time pricing, low cost bulk energy storage, and increased geographic diversity of wind plant siting. Without mitigation, the marginal economic value of wind is found to decrease by $21 MWh (37% of the marginal value of wind at 0% penetration) as wind penetration increases from 0% to 30%. The decline is largely because of the hourly profile of wind output and day-ahead wind energy forecast errors; factors whose impact is reduced by the mitigation strategies. With mitigation, the marginal value of wind at the 30% penetration level is $6-$11 MWh greater than the value without the measures (17-31% increase in value). Although the marginal value of wind energy decreases with increasing penetration in this region, several different types of mitigation strategies are available and should be investigated in more detail. Copyright (c) 2013 John Wiley & Sons, Ltd.
C1 [Mills, A. D.; Wiser, R. H.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Mills, AD (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,MS90R4000, Berkeley, CA 94720 USA.
EM ADMills@lbl.gov
RI Mills, Andrew/B-3469-2016
OI Mills, Andrew/0000-0002-9065-0458
FU US Department of Energy (National Electricity Delivery Division)
[DE-AC02-05CH11231]; US Department of Energy (Office of Energy
Efficiency and Renewable Energy, Wind & Water Power Program)
[DE-AC02-05CH11231]; US Department of Energy (Office of Electricity
Delivery and Energy Reliability, Research & Development Division)
[DE-AC02-05CH11231]
FX The work described in this paper was funded by the US Department of
Energy (Office of Energy Efficiency and Renewable Energy, Wind & Water
Power Program; and Office of Electricity Delivery and Energy
Reliability, Research & Development Division and National Electricity
Delivery Division) under Contract No. DE-AC02-05CH11231. We would
particularly like to thank Larry Mansueti, Gilbert Bindewald and Patrick
Gilman (US Department of Energy) for their support of this work. Debbie
Lew, Michael Milligan, George Scott and Ray George of the National
Renewable Energy Laboratory provided helpful guidance and data for this
project. Marco Nicolosi provided helpful discussions and feedback on
this project while a visitor at Berkeley Lab. An anonymous reviewer also
provides several helpful suggestions.
NR 39
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U1 1
U2 10
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1095-4244
EI 1099-1824
J9 WIND ENERGY
JI Wind Energy
PD NOV
PY 2014
VL 17
IS 11
BP 1711
EP 1726
DI 10.1002/we.1663
PG 16
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA AQ6IT
UT WOS:000342915100006
ER
PT J
AU Griffith, DT
Yoder, NC
Resor, B
White, J
Paquette, J
AF Griffith, D. Todd
Yoder, Nathanael C.
Resor, Brian
White, Jonathan
Paquette, Joshua
TI Structural health and prognostics management for the enhancement of
offshore wind turbine operations and maintenance strategies
SO WIND ENERGY
LA English
DT Article
DE structural health monitoring; prognostics management; condition-based
maintenance; offshore wind turbines; operations and maintenance;
prognostic control
ID POWER; BENEFIT
AB Offshore wind turbines are an attractive source for clean and renewable energy for reasons including their proximity to population centers and higher capacity factors. One obstacle to the more widespread installation of offshore wind turbines in the USA, however, is that recent projections of offshore operations and maintenance costs vary from two to five times the land-based costs. One way in which these costs could be reduced is through use of a structural health and prognostics management (SHPM) system as part of a condition-based maintenance paradigm with smart loads management. This paper contributes to the development of such strategies by developing an initial roadmap for SHPM, with application to the blades. One of the key elements of the approach is a multiscale simulation approach developed to identify how the underlying physics of the system are affected by the presence of damage and how these changes manifest themselves in the operational response of a full turbine. A case study of a trailing edge disbond is analysed to demonstrate the multiscale sensitivity of damage approach and to show the potential life extension and increased energy capture that can be achieved using simple changes in the overall turbine control and loads management strategy. The integration of health monitoring information, economic considerations such as repair costs versus state of health, and a smart loads management methodology provides an initial roadmap for reducing operations and maintenance costs for offshore wind farms while increasing turbine availability and overall profit. Copyright (c) 2013 John Wiley & Sons, Ltd.
C1 [Griffith, D. Todd; Resor, Brian; White, Jonathan; Paquette, Joshua] Sandia Natl Labs, Wind & Water Technol, Albuquerque, NM 87185 USA.
[Yoder, Nathanael C.] ATA Engn, San Diego, CA USA.
RP Griffith, DT (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM dgriffi@sandia.gov
FU US Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX Sandia National Laboratories is a multi-program laboratory 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 35
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U1 7
U2 36
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1095-4244
EI 1099-1824
J9 WIND ENERGY
JI Wind Energy
PD NOV
PY 2014
VL 17
IS 11
BP 1737
EP 1751
DI 10.1002/we.1665
PG 15
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA AQ6IT
UT WOS:000342915100008
ER
PT J
AU Ade, PAR
Aghanim, N
Armitage-Caplan, C
Arnaud, M
Ashdown, M
Atrio-Barandela, F
Aumont, J
Baccigalupi, C
Banday, AJ
Barreiro, RB
Bartlett, JG
Battaner, E
Benabed, K
Benoit, A
Benoit-Levy, A
Bernard, JP
Bersanelli, M
Bielewicz, P
Bobin, J
Bock, JJ
Bonaldi, A
Bond, JR
Borrill, J
Bouchet, FR
Bridges, M
Bucher, M
Burigana, C
Butler, RC
Calabrese, E
Cappellini, B
Cardoso, JF
Catalano, A
Challinor, A
Chamballu, A
Chary, RR
Chen, X
Chiang, HC
Chiang, LY
Christensen, PR
Church, S
Clements, DL
Colombi, S
Colombo, LPL
Couchot, F
Coulais, A
Crill, BP
Curto, A
Cuttaia, F
Danese, L
Davies, RD
Davis, RJ
de Bernardis, P
de Rosa, A
de Zotti, G
Delabrouille, J
Delouis, JM
Desert, FX
Dickinson, C
Diego, JM
Dolag, K
Dole, H
Donzelli, S
Dore, O
Douspis, M
Dunkley, J
Dupac, X
Efstathiou, G
Elsner, F
Ensslin, TA
Eriksen, HK
Finelli, F
Forni, O
Frailis, M
Fraisse, AA
Franceschi, E
Gaier, TC
Galeotta, S
Galli, S
Ganga, K
Giard, M
Giardino, G
Giraud-Heraud, Y
Gjerlow, E
Gonzalez-Nuevo, J
Gorski, KM
Gratton, S
Gregorio, A
Gruppuso, A
Gudmundsson, JE
Haissinski, J
Hamann, J
Hansen, FK
Hanson, D
Harrison, D
Henrot-Versille, S
Hernandez-Monteagudo, C
Herranz, D
Hildebrandt, SR
Hivon, E
Hobson, M
Holmes, WA
Hornstrup, A
Hou, Z
Hovest, W
Huffenberger, KM
Jaffe, AH
Jaffe, TR
Jewell, J
Jones, WC
Juvela, M
Keihanen, E
Keskitalo, R
Kisner, TS
Kneissl, R
Knoche, J
Knox, L
Kunz, M
Kurki-Suonio, H
Lagache, G
Lahteenmaki, A
Lamarre, JM
Lasenby, A
Lattanzi, M
Laureijs, RJ
Lawrence, CR
Leach, S
Leahy, JP
Leonardi, R
Leon-Tavares, J
Lesgourgues, J
Lewis, A
Liguori, M
Lilje, PB
Linden-Vornle, M
Lopez-Caniego, M
Lubin, PM
Macias-Perez, JF
Maffei, B
Maino, D
Mandolesi, N
Maris, M
Marshall, DJ
Martin, PG
Martinez-Gonzalez, E
Masi, S
Massardi, M
Matarrese, S
Matthai, F
Mazzotta, P
Meinhold, PR
Melchiorri, A
Melin, JB
Mendes, L
Menegoni, E
Mennella, A
Migliaccio, M
Millea, M
Mitra, S
Miville-Deschenes, MA
Moneti, A
Montier, L
Morgante, G
Mortlock, D
Moss, A
Munshi, D
Murphy, JA
Naselsky, P
Nati, F
Natoli, P
Netterfield, CB
Norgaard-Nielsen, HU
Noviello, F
Novikov, D
Novikov, I
O'Dwyer, IJ
Osborne, S
Oxborrow, CA
Paci, F
Pagano, L
Pajot, F
Paladini, R
Paoletti, D
Partridge, B
Pasian, F
Patanchon, G
Pearson, D
Pearson, TJ
Peiris, HV
Perdereau, O
Perotto, L
Perrotta, F
Pettorino, V
Piacentini, F
Piat, M
Pierpaoli, E
Pietrobon, D
Plaszczynski, S
Platania, P
Pointecouteau, E
Polenta, G
Ponthieu, N
Popa, L
Poutanen, T
Pratt, GW
Prezeau, G
Prunet, S
Puget, JL
Rachen, JP
Reach, WT
Rebolo, R
Reinecke, M
Remazeilles, M
Renault, C
Ricciardi, S
Riller, T
Ristorcelli, I
Rocha, G
Rosset, C
Roudier, G
Rowan-Robinson, M
Rubino-Martin, JA
Rusholme, B
Sandri, M
Santos, D
Savelainen, M
Savini, G
Scott, D
Seiffert, MD
Shellard, EPS
Spencer, LD
Starck, JL
Stolyarov, V
Stompor, R
Sudiwala, R
Sunyaev, R
Sureau, F
Sutton, D
Suur-Uski, AS
Sygnet, JF
Tauber, JA
Tavagnacco, D
Terenzi, L
Toffolatti, L
Tomasi, M
Tristram, M
Tucci, M
Tuovinen, J
Turler, M
Umana, G
Valenziano, L
Valiviita, J
Van Tent, B
Vielva, P
Villa, F
Vittorio, N
Wade, A
Wandelt, BD
Wehus, IK
White, M
White, SDM
Wilkinson, A
Yvon, D
Zacchei, A
Zonca, A
AF Ade, P. A. R.
Aghanim, N.
Armitage-Caplan, C.
Arnaud, M.
Ashdown, M.
Atrio-Barandela, F.
Aumont, J.
Baccigalupi, C.
Banday, A. J.
Barreiro, R. B.
Bartlett, J. G.
Battaner, E.
Benabed, K.
Benoit, A.
Benoit-Levy, A.
Bernard, J. -P.
Bersanelli, M.
Bielewicz, P.
Bobin, J.
Bock, J. J.
Bonaldi, A.
Bond, J. R.
Borrill, J.
Bouchet, F. R.
Bridges, M.
Bucher, M.
Burigana, C.
Butler, R. C.
Calabrese, E.
Cappellini, B.
Cardoso, J. -F.
Catalano, A.
Challinor, A.
Chamballu, A.
Chary, R. -R.
Chen, X.
Chiang, H. C.
Chiang, L. -Y
Christensen, P. R.
Church, S.
Clements, D. L.
Colombi, S.
Colombo, L. P. L.
Couchot, F.
Coulais, A.
Crill, B. P.
Curto, A.
Cuttaia, F.
Danese, L.
Davies, R. D.
Davis, R. J.
de Bernardis, P.
de Rosa, A.
de Zotti, G.
Delabrouille, J.
Delouis, J. -M.
Desert, F. -X.
Dickinson, C.
Diego, J. M.
Dolag, K.
Dole, H.
Donzelli, S.
Dore, O.
Douspis, M.
Dunkley, J.
Dupac, X.
Efstathiou, G.
Elsner, F.
Ensslin, T. A.
Eriksen, H. K.
Finelli, F.
Forni, O.
Frailis, M.
Fraisse, A. A.
Franceschi, E.
Gaier, T. C.
Galeotta, S.
Galli, S.
Ganga, K.
Giard, M.
Giardino, G.
Giraud-Heraud, Y.
Gjerlow, E.
Gonzalez-Nuevo, J.
Gorski, K. M.
Gratton, S.
Gregorio, A.
Gruppuso, A.
Gudmundsson, J. E.
Haissinski, J.
Hamann, J.
Hansen, F. K.
Hanson, D.
Harrison, D.
Henrot-Versille, S.
Hernandez-Monteagudo, C.
Herranz, D.
Hildebrandt, S. R.
Hivon, E.
Hobson, M.
Holmes, W. A.
Hornstrup, A.
Hou, Z.
Hovest, W.
Huffenberger, K. M.
Jaffe, A. H.
Jaffe, T. R.
Jewell, J.
Jones, W. C.
Juvela, M.
Keihanen, E.
Keskitalo, R.
Kisner, T. S.
Kneissl, R.
Knoche, J.
Knox, L.
Kunz, M.
Kurki-Suonio, H.
Lagache, G.
Lahteenmaki, A.
Lamarre, J. -M.
Lasenby, A.
Lattanzi, M.
Laureijs, R. J.
Lawrence, C. R.
Leach, S.
Leahy, J. P.
Leonardi, R.
Leon-Tavares, J.
Lesgourgues, J.
Lewis, A.
Liguori, M.
Lilje, P. B.
Linden-Vornle, M.
Lopez-Caniego, M.
Lubin, P. M.
Macias-Perez, J. F.
Maffei, B.
Maino, D.
Mandolesi, N.
Maris, M.
Marshall, D. J.
Martin, P. G.
Martinez-Gonzalez, E.
Masi, S.
Massardi, M.
Matarrese, S.
Matthai, F.
Mazzotta, P.
Meinhold, P. R.
Melchiorri, A.
Melin, J. -B.
Mendes, L.
Menegoni, E.
Mennella, A.
Migliaccio, M.
Millea, M.
Mitra, S.
Miville-Deschenes, M. -A.
Moneti, A.
Montier, L.
Morgante, G.
Mortlock, D.
Moss, A.
Munshi, D.
Murphy, J. A.
Naselsky, P.
Nati, F.
Natoli, P.
Netterfield, C. B.
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Reinecke, M.
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Renault, C.
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Ristorcelli, I.
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Rowan-Robinson, M.
Rubino-Martin, J. A.
Rusholme, B.
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Umana, G.
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Valiviita, J.
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Vielva, P.
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Vittorio, N.
Wade, A.
Wandelt, B. D.
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White, S. D. M.
Wilkinson, A.
Yvon, D.
Zacchei, A.
Zonca, A.
TI Planck 2013 results. XVI. Cosmological parameters
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE cosmic background radiation; cosmological parameters; early Universe;
inflation; primordial nucleosynthesis
ID MICROWAVE-ANISOTROPY-PROBE; BARYON ACOUSTIC-OSCILLATIONS; SOUTH-POLE
TELESCOPE; HUBBLE-SPACE-TELESCOPE; DIGITAL SKY SURVEY; BACKGROUND POWER
SPECTRUM; SUPERNOVA LEGACY SURVEY; INFLATIONARY UNIVERSE SCENARIO;
PRIMORDIAL MAGNETIC-FIELDS; FINE-STRUCTURE CONSTANT
AB This paper presents the first cosmological results based on Planck measurements of the cosmic microwave background (CMB) temperature and lensing-potential power spectra. We find that the Planck spectra at high multipoles (l greater than or similar to 40) are extremely well described by the standard spatially-flat six-parameter ACDM cosmology with a power-law spectrum of adiabatic scalar perturbations. Within the context of this cosmology, the Planck data determine the cosmological parameters to high precision: the angular size of the sound horizon at recombination, the physical densities of baryons and cold dark matter, and the scalar spectral index are estimated to be theta* = (1.04147 +/- 0.00062) x 10(-2), Omega(b)h(2) = 0.02205 +/- 0.00028, Omega(c)h(2) = 0.1199 +/- 0.0027, and n(s) = 0.9603 +/- 0.0073, respectively (note that in this abstract we quote 68% errors on measured parameters and 95% upper limits on other parameters). For this cosmology, we find a low value of the Hubble constant, H-0 = (67.3 +/- 1.2) km s(-1) Mpc(-1), and a high value of the matter density parameter, Omega(m) = 0.315 +/- 0.017. These values are in tension with recent direct measurements of H-0 and the magnitude-redshift relation for Type Ia supernovae, but are in excellent agreement with geometrical constraints from baryon acoustic oscillation (BAO) surveys. Including curvature, we find that the Universe is consistent with spatial flatness to percent level precision using Planck CMB data alone. We use high-resolution CMB data together with Planck to provide greater control on extragalactic foreground components in an investigation of extensions to the six-parameter ACDM model. We present selected results from a large grid of cosmological models, using a range of additional astrophysical data sets in addition to Planck and high-resolution CMB data. None of these models are favoured over the standard six-parameter ACDM cosmology. The deviation of the scalar spectral index from unity is insensitive to the addition of tensor modes and to changes in the matter content of the Universe. We find an upper limit of r(0.002) < 0.11 on the tensor-to-scalar ratio. There is no evidence for additional neutrino-like relativistic particles beyond the three families of neutrinos in the standard model. Using BAO and CMB data, we find N-eff = 3.30 +/- 0.27 for the effective number of relativistic degrees of freedom, and an upper limit of 0.23 eV for the sum of neutrino masses. Our results are in excellent agreement with big bang nucleosynthesis and the standard value of N-eff = 3.046. We find no evidence for dynamical dark energy; using BAO and CMB data, the dark energy equation of state parameter is constrained to be w = -1.13(-0.10)(+0.13). We also use the Planck data to set limits on a possible variation of the fine-structure constant, dark matter annihilation and primordial magnetic fields. Despite the success of the six-parameter ACDM model in describing the Planck data at high multipoles, we note that this cosmology does not provide a good fit to the temperature power spectrum at low multipoles. The unusual shape of the spectrum in the multipole range 20 less than or similar to l less than or similar to 40 was seen previously in the WMAP data and is a real feature of the primordial CMB anisotropies.
The poor fit to the spectrum at low multipoles is not of decisive significance, but is an "anomaly" in an otherwise self-consistent analysis of the Planck temperature data.
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EM gpe@ast.cam.ac.uk
RI Martinez-Gonzalez, Enrique/E-9534-2015; Gonzalez-Nuevo,
Joaquin/I-3562-2014; Yvon, Dominique/D-2280-2015; Mazzotta,
Pasquale/B-1225-2016; Colombo, Loris/J-2415-2016; Novikov,
Igor/N-5098-2015; Nati, Federico/I-4469-2016; Novikov,
Dmitry/P-1807-2015; Herranz, Diego/K-9143-2014; Vielva,
Patricio/F-6745-2014; Toffolatti, Luigi/K-5070-2014; Tomasi,
Maurizio/I-1234-2016; White, Martin/I-3880-2015; Valiviita,
Jussi/A-9058-2016; Kurki-Suonio, Hannu/B-8502-2016; Pearson,
Timothy/N-2376-2015; Stolyarov, Vladislav/C-5656-2017; Piacentini,
Francesco/E-7234-2010; Atrio-Barandela, Fernando/A-7379-2017;
Lahteenmaki, Anne/L-5987-2013; Lattanzi, Massimiliano/D-8120-2011; popa,
lucia/B-4718-2012; Gruppuso, Alessandro/N-5592-2015;
OI TERENZI, LUCA/0000-0001-9915-6379; Starck, Jean-Luc/0000-0003-2177-7794;
Reach, William/0000-0001-8362-4094; Franceschi,
Enrico/0000-0002-0585-6591; Mitra, Sanjit/0000-0002-0800-4626;
Martinez-Gonzalez, Enrique/0000-0002-0179-8590; Gonzalez-Nuevo,
Joaquin/0000-0003-1354-6822; Mazzotta, Pasquale/0000-0002-5411-1748;
Colombo, Loris/0000-0003-4572-7732; Nati, Federico/0000-0002-8307-5088;
Herranz, Diego/0000-0003-4540-1417; Vielva,
Patricio/0000-0003-0051-272X; Toffolatti, Luigi/0000-0003-2645-7386;
Tomasi, Maurizio/0000-0002-1448-6131; White, Martin/0000-0001-9912-5070;
Valiviita, Jussi/0000-0001-6225-3693; Kurki-Suonio,
Hannu/0000-0002-4618-3063; Pearson, Timothy/0000-0001-5213-6231;
Stolyarov, Vladislav/0000-0001-8151-828X; Piacentini,
Francesco/0000-0002-5444-9327; Atrio-Barandela,
Fernando/0000-0002-2130-2513; Lattanzi,
Massimiliano/0000-0003-1059-2532; Gruppuso,
Alessandro/0000-0001-9272-5292; De Zotti,
Gianfranco/0000-0003-2868-2595; Juvela, Mika/0000-0002-5809-4834; Lilje,
Per/0000-0003-4324-7794; Paoletti, Daniela/0000-0003-4761-6147; Savini,
Giorgio/0000-0003-4449-9416; Pierpaoli, Elena/0000-0002-7957-8993;
Huffenberger, Kevin/0000-0001-7109-0099; Galeotta,
Samuele/0000-0002-3748-5115; Ricciardi, Sara/0000-0002-3807-4043;
Zacchei, Andrea/0000-0003-0396-1192; Scott, Douglas/0000-0002-6878-9840;
Villa, Fabrizio/0000-0003-1798-861X; Hivon, Eric/0000-0003-1880-2733
FU ESA; CNES; CNRS/INSU-IN2P3-INP (France)
FX The development of Planck has been supported by: ESA; CNES and
CNRS/INSU-IN2P3-INP (France); ASI, CNR, and INAF (Italy); NASA and DoE
(USA); STFC and UKSA (UK); CSIC, MICINN and JA (Spain); Tekes, AoF and
CSC (Finland); DLR and MPG (Germany); CSA (Canada); DTU Space (Denmark);
SER/SSO (Switzerland); RCN (Norway); SFI (Ireland); FCT/MCTES
(Portugal); and PRACE (EU). A description of the Planck Collaboration
and a list of its members, including the technical or scientific
activities in which they have been involved, can be found at
http://www.sciops.esa.int/index.php?
project=planck&page=Planck_Collaboration. We thank the referee for a
comprehensive and helpful report. We also thank Jean-Philippe Uzan for
his contributions to Sect. 6.8. We additionally acknowledge useful
comments on the first version of this paper from a large number of
scientists who have helped improve the clarity of the revised version.
We mention specifically Jim Braatz, John Carlstrom, Alex Conley, Raphael
Flauger, Liz Humphreys, Adam Riess, Beth Reid, Uros Seljak, David
Spergel, Mark Sullivan, and Reynald Pain.
NR 359
TC 631
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U1 3
U2 3
PU EDP SCIENCES S A
PI LES ULIS CEDEX A
PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A,
FRANCE
SN 1432-0746
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD NOV
PY 2014
VL 571
AR A16
DI 10.1051/0004-6361/201321591
PG 66
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AT9ZK
UT WOS:000345282600027
ER
PT J
AU Ade, PAR
Aghanim, N
Armitage-Caplan, C
Arnaud, M
Ashdown, M
Atrio-Barandela, F
Aumont, J
Baccigalupi, C
Banday, AJ
Barreiro, RB
Bartlett, JG
Bartolo, N
Battaner, E
Benabed, K
Benoit, A
Benoit-Levy, A
Bernard, JP
Bersanelli, M
Bielewicz, P
Bobin, J
Bock, JJ
Bonaldi, A
Bonavera, L
Bond, JR
Borrill, J
Bouchet, FR
Bridges, M
Bucher, M
Burigana, C
Butler, RC
Cardoso, JF
Catalano, A
Challinor, A
Chamballu, A
Chiang, HC
Chiang, LY
Christensen, PR
Church, S
Clements, DL
Colombi, S
Colombo, LPL
Couchot, F
Coulais, A
Crill, BP
Curto, A
Cuttaia, F
Danese, L
Davies, RD
Davis, RJ
de Bernardis, P
de Rosa, A
de Zotti, G
Delabrouille, J
Delouis, JM
Desert, FX
Diego, JM
Dole, H
Donzelli, S
Dore, O
Douspis, M
Ducout, A
Dunkley, J
Dupac, X
Efstathiou, G
Elsner, F
Ensslin, TA
Eriksen, HK
Fergusson, J
Finelli, F
Forni, O
Frailis, M
Franceschi, E
Galeotta, S
Ganga, K
Giard, M
Giraud-Heraud, Y
Gonzalez-Nuevo, J
Gorski, KM
Gratton, S
Gregorio, A
Gruppuso, A
Hansen, FK
Hanson, D
Harrison, D
Heavens, A
Henrot-Versille, S
Hernandez-Monteagudo, C
Herranz, D
Hildebrandt, SR
Hivon, E
Hobson, M
Holmes, WA
Hornstrup, A
Hovest, W
Huffenberger, KM
Jaffe, AH
Jaffe, TR
Jones, WC
Juvela, M
Keihanen, E
Keskitalo, R
Kisner, TS
Knoche, J
Knox, L
Kunz, M
Kurki-Suonio, H
Lacasa, F
Lagache, G
Lahteenmaki, A
Lamarre, JM
Lasenby, A
Laureijs, RJ
Lawrence, CR
Leahy, JP
Leonardi, R
Lesgourgues, J
Lewis, A
Liguori, M
Lilje, PB
Linden-Vornle, M
Lopez-Caniego, M
Lubin, PM
Macias-Perez, JF
Maffei, B
Maino, D
Mandolesi, N
Mangilli, A
Marinucci, D
Maris, M
Marshall, DJ
Martin, PG
Martinez-Gonzalez, E
Masi, S
Massardi, M
Matarrese, S
Matthai, F
Mazzotta, P
Meinhold, PR
Melchiorri, A
Mendes, L
Mennella, A
Migliaccio, M
Mitra, S
Miville-Deschenes, MA
Moneti, A
Montier, L
Morgante, G
Mortlock, D
Moss, A
Munshi, D
Murphy, JA
Naselsky, P
Natoli, P
Netterfield, CB
Norgaard-Nielsen, HU
Noviello, F
Novikov, D
Novikov, I
Osborne, S
Oxborrowl, CA
Paci, F
Pagano, L
Pajot, F
Paoletti, D
Pasian, F
Patanchon, G
Peiris, HV
Perdereau, O
Perotto, L
Perrotta, F
Piacentini, F
Piat, M
Pierpaoli, E
Pietrobon, D
Plaszczynski, S
Pointecouteau, E
Polenta, G
Ponthieu, N
Popa, L
Poutanen, T
Pratt, GW
Prezeau, G
Prunet, S
Puget, JL
Rachen, JP
Racine, B
Rebolo, R
Reinecke, M
Remazeilles, M
Renault, C
Renzi, A
Ricciardi, S
Riller, T
Ristorcelli, I
Rocha, G
Rosset, C
Roudier, G
Rubino-Martin, JA
Rusholme, B
Sandri, M
Santos, D
Savini, G
Scott, D
Seiffert, MD
Shellard, EPS
Smith, K
Spencer, LD
Starck, JL
Stolyarov, V
Stompor, R
Sudiwala, R
Sunyaev, R
Sureau, F
Sutter, P
Sutton, D
Suur-Uski, AS
Sygnet, JF
Tauber, JA
Tavagnacco, D
Terenzi, L
Toffolatti, L
Tomasi, M
Tristram, M
Tucci, M
Tuovinen, J
Valenziano, L
Valiviita, J
Van Tent, B
Varis, J
Vielva, P
Villa, F
Vittorio, N
Wade, LA
Wandelt, BD
White, M
White, SDM
Yvon, D
Zacchei, A
Zonca, A
AF Ade, P. A. R.
Aghanim, N.
Armitage-Caplan, C.
Arnaud, M.
Ashdown, M.
Atrio-Barandela, F.
Aumont, J.
Baccigalupi, C.
Banday, A. J.
Barreiro, R. B.
Bartlett, J. G.
Bartolo, N.
Battaner, E.
Benabed, K.
Benoit, A.
Benoit-Levy, A.
Bernard, J. -P.
Bersanelli, M.
Bielewicz, P.
Bobin, J.
Bock, J. J.
Bonaldi, A.
Bonavera, L.
Bond, J. R.
Borrill, J.
Bouchet, F. R.
Bridges, M.
Bucher, M.
Burigana, C.
Butler, R. C.
Cardoso, J. -F.
Catalano, A.
Challinor, A.
Chamballu, A.
Chiang, H. C.
Chiang, L. -Y
Christensen, P. R.
Church, S.
Clements, D. L.
Colombi, S.
Colombo, L. P. L.
Couchot, F.
Coulais, A.
Crill, B. P.
Curto, A.
Cuttaia, F.
Danese, L.
Davies, R. D.
Davis, R. J.
de Bernardis, P.
de Rosa, A.
de Zotti, G.
Delabrouille, J.
Delouis, J. -M.
Desert, F. -X.
Diego, J. M.
Dole, H.
Donzelli, S.
Dore, O.
Douspis, M.
Ducout, A.
Dunkley, J.
Dupac, X.
Efstathiou, G.
Elsner, F.
Ensslin, T. A.
Eriksen, H. K.
Fergusson, J.
Finelli, F.
Forni, O.
Frailis, M.
Franceschi, E.
Galeotta, S.
Ganga, K.
Giard, M.
Giraud-Heraud, Y.
Gonzalez-Nuevo, J.
Gorski, K. M.
Gratton, S.
Gregorio, A.
Gruppuso, A.
Hansen, F. K.
Hanson, D.
Harrison, D.
Heavens, A.
Henrot-Versille, S.
Hernandez-Monteagudo, C.
Herranz, D.
Hildebrandt, S. R.
Hivon, E.
Hobson, M.
Holmes, W. A.
Hornstrup, A.
Hovest, W.
Huffenberger, K. M.
Jaffe, A. H.
Jaffe, T. R.
Jones, W. C.
Juvela, M.
Keihanen, E.
Keskitalo, R.
Kisner, T. S.
Knoche, J.
Knox, L.
Kunz, M.
Kurki-Suonio, H.
Lacasa, F.
Lagache, G.
Lahteenmaki, A.
Lamarre, J. -M.
Lasenby, A.
Laureijs, R. J.
Lawrence, C. R.
Leahy, J. P.
Leonardi, R.
Lesgourgues, J.
Lewis, A.
Liguori, M.
Lilje, P. B.
Linden-Vornle, M.
Lopez-Caniego, M.
Lubin, P. M.
Macias-Perez, J. F.
Maffei, B.
Maino, D.
Mandolesi, N.
Mangilli, A.
Marinucci, D.
Maris, M.
Marshall, D. J.
Martin, P. G.
Martinez-Gonzalez, E.
Masi, S.
Massardi, M.
Matarrese, S.
Matthai, F.
Mazzotta, P.
Meinhold, P. R.
Melchiorri, A.
Mendes, L.
Mennella, A.
Migliaccio, M.
Mitra, S.
Miville-Deschenes, M. -A.
Moneti, A.
Montier, L.
Morgante, G.
Mortlock, D.
Moss, A.
Munshi, D.
Murphy, J. A.
Naselsky, P.
Natoli, P.
Netterfield, C. B.
Norgaard-Nielsen, H. U.
Noviello, F.
Novikov, D.
Novikov, I.
Osborne, S.
Oxborrowl, C. A.
Paci, F.
Pagano, L.
Pajot, F.
Paoletti, D.
Pasian, F.
Patanchon, G.
Peiris, H. V.
Perdereau, O.
Perotto, L.
Perrotta, F.
Piacentini, F.
Piat, M.
Pierpaoli, E.
Pietrobon, D.
Plaszczynski, S.
Pointecouteau, E.
Polenta, G.
Ponthieu, N.
Popa, L.
Poutanen, T.
Pratt, G. W.
Prezeau, G.
Prunet, S.
Puget, J. -L.
Rachen, J. P.
Racine, B.
Rebolo, R.
Reinecke, M.
Remazeilles, M.
Renault, C.
Renzi, A.
Ricciardi, S.
Riller, T.
Ristorcelli, I.
Rocha, G.
Rosset, C.
Roudier, G.
Rubino-Martin, J. A.
Rusholme, B.
Sandri, M.
Santos, D.
Savini, G.
Scott, D.
Seiffert, M. D.
Shellard, E. P. S.
Smith, K.
Spencer, L. D.
Starck, J. -L.
Stolyarov, V.
Stompor, R.
Sudiwala, R.
Sunyaev, R.
Sureau, F.
Sutter, P.
Sutton, D.
Suur-Uski, A. -S.
Sygnet, J. -F.
Tauber, J. A.
Tavagnacco, D.
Terenzi, L.
Toffolatti, L.
Tomasi, M.
Tristram, M.
Tucci, M.
Tuovinen, J.
Valenziano, L.
Valiviita, J.
Van Tent, B.
Varis, J.
Vielva, P.
Villa, F.
Vittorio, N.
Wade, L. A.
Wandelt, B. D.
White, M.
White, S. D. M.
Yvon, D.
Zacchei, A.
Zonca, A.
CA Planck Collaboration
TI Planck 2013 results. XXIV. Constraints on primordial non-Gaussianity
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE cosmic background radiation; cosmology: observations; cosmology: theory;
early Universe; inflation; methods: data analysis
ID PROBE WMAP OBSERVATIONS; OBSERVATIONS COSMOLOGICAL INTERPRETATION;
MICROWAVE BACKGROUND BISPECTRUM; NONLINEAR COUPLING PARAMETER; 3-POINT
CORRELATION-FUNCTION; LARGE-SCALE STRUCTURE; MINKOWSKI FUNCTIONALS;
COMPONENT SEPARATION; POINT SOURCES; POLARIZATION ANISOTROPIES
AB The Planck nominal mission cosmic microwave background (CMB) maps yield unprecedented constraints on primordial non-Gaussianity (NG). Using three optimal bispectrum estimators, separable template-fitting (KSW), binned, and modal, we obtain consistent values for the primordial local, equilateral, and orthogonal bispectrum amplitudes, quoting as our final result f(NL)(local) = 2.7 +/- 5.8, f(NL)(equil) = -42 +/- 75, and f(NL)(ortho) = 25 +/- 39 (68% CL statistical). Non-Gaussianity is detected in the data; using skew-C 'statistics we find a nonzero bispectrum from residual point sources, and the integrated-Sachs-Wolfe-lensing bispectrum at a level expected in the CDM scenario. The results are based on comprehensive crossvalidation of these estimators on Gaussian and non-Gaussian simulations, are stable across component separation techniques, pass an extensive suite of tests, and are confirmed by skew-C `, wavelet bispectrum and Minkowski functional estimators. Beyond estimates of individual shape amplitudes, we present model-independent, three-dimensional reconstructions of the Planck CMB bispectrum and thus derive constraints on early-Universe scenarios that generate primordial NG, including general single-field models of inflation, excited initial states (non-Bunch-Davies vacua), and directionally-dependent vector models. We provide an initial survey of scale-dependent feature and resonance models. These results bound both general single-field and multi-field model parameter ranges, such as the speed of sound, cs 0 : 02 (95% CL), in an e ff ective field theory parametrization, and the curvaton decay fraction rD 0 : 15 (95% CL). The Planck data significantly limit the viable parameter space of the ekpyrotic / cyclic scenarios. The amplitude of the four-point function in the local model NL < 2800 (95% CL). Taken together, these constraints represent the highest precision tests to date of physical mechanisms for the origin of cosmic structure.
C1 [Bartlett, J. G.; Bucher, M.; Cardoso, J. -F.; Delabrouille, J.; Ganga, K.; Giraud-Heraud, Y.; Patanchon, G.; Piat, M.; Racine, B.; Remazeilles, M.; Rosset, C.; Roudier, G.; Stompor, R.] Univ Paris Diderot, Observ Paris, Sorbonne Paris Cite, CNRS IN2P3,CEA Irfu,APC, F-75205 Paris 13, France.
[Lahteenmaki, A.; Poutanen, T.] Aalto Univ, Metsahovi Radio Observ, Kylmala 02540, Finland.
[Kunz, M.] African Inst Math Sci, ZA-7945 Cape Town, South Africa.
[Natoli, P.; Polenta, G.] Agenzia Spaziale Italiana, Sci Data Ctr, I-00133 Rome, Italy.
[Mandolesi, N.] Agenzia Spaziale Italiana, I-00998 Rome, Italy.
[Ashdown, M.; Bridges, M.; Curto, A.; Hobson, M.; Lasenby, A.; Stolyarov, V.] Univ Cambridge, Cavendish Lab, Astrophys Grp, Cambridge CB3 0HE, England.
[Chiang, H. C.] Univ KwaZulu Natal, Sch Math Stat & Comp Sci, Astrophys & Cosmol Res Unit, ZA-4000 Durban, South Africa.
[Bond, J. R.; Hanson, D.; Martin, P. G.; Miville-Deschenes, M. -A.] Univ Toronto, CITA, Toronto, ON M5S 3H8, Canada.
[Banday, A. J.; Bernard, J. -P.; Bielewicz, P.; Forni, O.; Giard, M.; Jaffe, T. R.; Montier, L.; Pointecouteau, E.; Ristorcelli, I.] CNRS, TRAP, F-31028 Toulouse 4, France.
[Bock, J. J.; Dore, O.; Hildebrandt, S. R.; Prezeau, G.; Rocha, G.; Seiffert, M. D.] CALTECH, Pasadena, CA 91125 USA.
[Challinor, A.; Fergusson, J.; Shellard, E. P. S.] Univ Cambridge, DAMTP, Ctr Theoret Cosmol, Cambridge CB3 0WA, England.
[Hernandez-Monteagudo, C.] Ctr Estudios Fis Cosmos Aragon, Teruel 44001, Spain.
[Borrill, J.; Keskitalo, R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Cosmol Ctr, Berkeley, CA 94720 USA.
[Rebolo, R.] CSIC, Madrid 2800, Spain.
[Chamballu, A.; Yvon, D.] CEA Saclay, DSM Irfu SPP, F-91191 Gif Sur Yvette, France.
[Hornstrup, A.; Linden-Vornle, M.; Norgaard-Nielsen, H. U.; Oxborrowl, C. A.] Tech Univ Denmark, Natl Space Inst, DTU Space, DK-2800 Lyngby, Denmark.
[Kunz, M.; Tucci, M.] Univ Geneva, Dept Phys Theor, CH-1211 Geneva 4, Switzerland.
[Atrio-Barandela, F.] Univ Salamanca, Fac Ciencias, Dept Fis Fundamental, E-37008 Salamanca, Spain.
[Toffolatti, L.] Univ Oviedo, Dept Fis, E-33007 Oviedo, Spain.
[Netterfield, C. B.] Univ Toronto, Dept Astron & Astrophys, Toronto, ON, Canada.
[Rachen, J. P.] Radboud Univ Nijmegen, Dept Astrophys, IMAPP, NL-6500 GL Nijmegen, Netherlands.
[Keskitalo, R.] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA.
[Scott, D.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V5Z 1M9, Canada.
[Colombo, L. P. L.; Pierpaoli, E.] Univ So Calif, Dept Phys & Astron, Dana & David Dornsife Coll Letter Arts & Sci, Los Angeles, CA 90089 USA.
[Benoit-Levy, A.; Peiris, H. V.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Lewis, A.] Univ Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England.
[Huffenberger, K. M.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
[Juvela, M.; Keihanen, E.; Kurki-Suonio, H.; Poutanen, T.; Suur-Uski, A. -S.; Valiviita, J.] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland.
[Chiang, H. C.; Jones, W. C.; Smith, K.] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA.
[White, M.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Knox, L.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
[Lubin, P. M.; Meinhold, P. R.; Zonca, A.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
[Wandelt, B. D.] Univ Illinois, Dept Phys, Urbana, IL USA.
[Bartolo, N.; Liguori, M.; Matarrese, S.] Univ Padua, Dipartimento Fis & Astron G Galilei, I-35131 Padua, Italy.
[Burigana, C.; Mandolesi, N.; Natoli, P.] Univ Ferrara, Dipartimento Fis & Sci Terra, I-44122 Ferrara, Italy.
[de Bernardis, P.; Masi, S.; Melchiorri, A.; Pagano, L.; Piacentini, F.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[Bersanelli, M.; Maino, D.; Mennella, A.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy.
[Gregorio, A.; Tavagnacco, D.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy.
[Mazzotta, P.; Vittorio, N.] Univ Roma Tor Vergata, Dipartmento Fis, I-00133 Rome, Italy.
[Marinucci, D.] Univ Roma Tor Vergata, Dipartimento Matemat, I-00133 Rome, Italy.
[Christensen, P. R.; Naselsky, P.] Niels Bohr Inst, Discovery Ctr, DK-2100 Copenhagen, Denmark.
[Rebolo, R.; Rubino-Martin, J. A.] Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain.
[Dupac, X.; Leonardi, R.; Mendes, L.] European Space Agcy, ESAC, Planck Sci Off, Madrid 28691, Spain.
[Laureijs, R. J.; Tauber, J. A.] European Space Agcy, Estec, NL-2201 AZ Noordwijk, Netherlands.
[Kurki-Suonio, H.; Lahteenmaki, A.; Poutanen, T.; Suur-Uski, A. -S.; Valiviita, J.] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland.
[de Zotti, G.] Osserv Astron Padova, INAF, I-35122 Padua, Italy.
[Polenta, G.] Osserv Astron Roma, INAF, I-00040 Monte Porzio Catone, Italy.
[Frailis, M.; Galeotta, S.; Gregorio, A.; Maris, M.; Pasian, F.; Tavagnacco, D.] Osserv Astron Trieste, INAF, I-34143 Trieste, Italy.
[Massardi, M.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[Burigana, C.; Butler, R. C.; Cuttaia, F.; de Rosa, A.; Finelli, F.; Franceschi, E.; Gruppuso, A.; Mandolesi, N.; Morgante, G.; Natoli, P.; Paoletti, D.; Ricciardi, S.; Sandri, M.; Terenzi, L.; Valenziano, L.; Villa, F.] INAF IASF Bologna, I-40129 Bologna, Italy.
[Bersanelli, M.; Donzelli, S.; Maino, D.; Mennella, A.; Tomasi, M.] INAF IASF Milano, I-20133 Milan, Italy.
[Finelli, F.; Paoletti, D.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy.
[Melchiorri, A.; Pagano, L.] Univ Roma La Sapienza, Ist Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy.
[Desert, F. -X.; Ponthieu, N.] Univ Grenoble 1, CNRS INSU, Inst Planetol & Astrophys Grenoble, UMR 5274, F-38041 Grenoble, France.
[Mitra, S.] IUCAA, Pune 411007, Maharashtra, India.
[Clements, D. L.; Heavens, A.; Jaffe, A. H.; Mortlock, D.; Novikov, D.] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Astrophys Grp, London SW7 2AZ, England.
[Rusholme, B.] CALTECH, Ctr Infrared Proc & Anal, Pasadena, CA 91125 USA.
[Benoit, A.] Univ Grenoble 1, CNRS, Inst Neel, F-38042 Grenoble, France.
[Dole, H.] Inst Univ France, F-75005 Paris, France.
[Aghanim, N.; Aumont, J.; Chamballu, A.; Dole, H.; Douspis, M.; Kunz, M.; Lacasa, F.; Lagache, G.; Miville-Deschenes, M. -A.; Pajot, F.; Ponthieu, N.; Puget, J. -L.; Remazeilles, M.] Univ Paris 11, CNRS, Inst Astrophys Spatiale, UMR 8617, F-91405 Orsay, France.
[Benabed, K.; Benoit-Levy, A.; Bouchet, F. R.; Cardoso, J. -F.; Colombi, S.; Delouis, J. -M.; Ducout, A.; Elsner, F.; Hivon, E.; Mangilli, A.; Moneti, A.; Prunet, S.; Sutter, P.; Sygnet, J. -F.; Wandelt, B. D.] CNRS, Inst Astrophys Paris, UMR 7095, F-75014 Paris, France.
[Popa, L.] Inst Space Sci, Bucharest 077125, Romania.
[Chiang, L. -Y] Acad Sinica, Inst Astron & Astrophys, Taipei 106, Taiwan.
[Bridges, M.; Challinor, A.; Efstathiou, G.; Gratton, S.; Harrison, D.; Migliaccio, M.; Sutton, D.] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
[Eriksen, H. K.; Hansen, F. K.; Lilje, P. B.; Valiviita, J.] Univ Oslo, Inst Theoret Astrophys, N-0315 Oslo, Norway.
[Rebolo, R.; Rubino-Martin, J. A.] Inst Astrofis Canarias, Tenerife 38200, Spain.
[Barreiro, R. B.; Bonavera, L.; Curto, A.; Diego, J. M.; Gonzalez-Nuevo, J.; Herranz, D.; Lopez-Caniego, M.; Martinez-Gonzalez, E.; Toffolatti, L.; Vielva, P.] Univ Cantabria, CSIC, Inst Fis Cantabria, E-39005 Santander, Spain.
[Bartlett, J. G.; Bock, J. J.; Colombo, L. P. L.; Dore, O.; Gorski, K. M.; Hanson, D.; Holmes, W. A.; Lawrence, C. R.; Mitra, S.; Pietrobon, D.; Prezeau, G.; Rocha, G.; Roudier, G.; Seiffert, M. D.; Wade, L. A.] CALTECH, Jet Prop Lab, Pasadena, CA USA.
[Bonaldi, A.; Davies, R. D.; Davis, R. J.; Leahy, J. P.; Maffei, B.; Noviello, F.; Remazeilles, M.] Univ Manchester, Jodrell Bank, Ctr Astrophys, Sch Phys & Astron, Manchester M13 9PL, Lancs, England.
[Ashdown, M.; Bridges, M.; Challinor, A.; Gratton, S.; Harrison, D.; Migliaccio, M.; Stolyarov, V.; Sutton, D.] Kavli Inst Cosmol Cambridge, Cambridge CB3 0HA, England.
[Couchot, F.; Henrot-Versille, S.; Perdereau, O.; Plaszczynski, S.; Tristram, M.; Tucci, M.] Univ Paris 11, CNRS, IN2P3, LAL, F-91383 Orsay, France.
[Catalano, A.; Coulais, A.; Lamarre, J. -M.; Roudier, G.] CNRS, Observ Paris, LERMA, F-75014 Paris, France.
[Arnaud, M.; Bobin, J.; Chamballu, A.; Marshall, D. J.; Pratt, G. W.; Starck, J. -L.; Sureau, F.] Univ Paris Diderot, CNRS, CEA DSM, Lab AIM,IRFU Serv Astrophys, F-91191 Gif Sur Yvette, France.
[Cardoso, J. -F.] CNRS, Lab Traitement & Commun Informat, UMR 5141, F-75634 Paris 13, France.
[Cardoso, J. -F.] Telecom ParisTech, F-75634 Paris 13, France.
[Catalano, A.; Macias-Perez, J. F.; Perotto, L.; Renault, C.; Santos, D.] Univ Grenoble 1, Inst Natl Polytech Grenoble, CNRS IN2P3, Lab Phys Subatom & Cosmol, F-38026 St Martin Dheres, France.
[Van Tent, B.] Univ Paris 11, Phys Theor Lab, F-91405 Orsay, France.
[Kisner, T. S.] CNRS, F-91405 Orsay, France.
[Ensslin, T. A.; Hernandez-Monteagudo, C.; Hovest, W.; Knoche, J.; Matthai, F.; Rachen, J. P.; Reinecke, M.; Riller, T.; Sunyaev, R.; White, S. D. M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Hanson, D.] Max Planck Inst Astrophys, D-85741 Garching, Germany.
[Tuovinen, J.; Varis, J.] McGill Univ, McGill Phys, Montreal, PQ H3A 2T8, Canada.
[Murphy, J. A.] VTT Tech Res Ctr, MilliLab, Espoo 02044, Finland.
[Christensen, P. R.; Naselsky, P.; Novikov, I.] Natl Univ Ireland, Dept Expt Phys, Maynooth, Kildare, Ireland.
[Crill, B. P.] Niels Bohr Inst, DK-2100 Copenhagen, Denmark.
[Savini, G.] CALTECH, Observat Cosmol, Pasadena, CA 91125 USA.
[Lesgourgues, J.] UCL, Opt Sci Lab, London, England.
[Baccigalupi, C.; Bielewicz, P.; Danese, L.; Gonzalez-Nuevo, J.; Paci, F.; Perrotta, F.; Renzi, A.] Ecole Polytech Fed Lausanne, SB ITP LPPC, CH-1015 Lausanne, Switzerland.
[Ade, P. A. R.; Munshi, D.; Spencer, L. D.; Sudiwala, R.] SISSA, Astrophys Sect, I-34136 Trieste, Italy.
[Moss, A.] Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales.
[Sunyaev, R.] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England.
[Borrill, J.] Russian Acad Sci, Space Res Inst IKI, Moscow 117997, Russia.
[Stolyarov, V.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Church, S.; Osborne, S.] Russian Acad Sci, Special Astrophys Observ, Karachai Cherkessian 369167, Russia.
[Armitage-Caplan, C.; Dunkley, J.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Lesgourgues, J.] Univ Oxford, Sub Dept Astrophys, Oxford OX1 3RH, England.
[Benabed, K.; Benoit-Levy, A.; Bouchet, F. R.; Colombi, S.; Delouis, J. -M.; Elsner, F.; Hivon, E.; Prunet, S.; Wandelt, B. D.] CERN, Div Theory, PH TH, CH-1211 Geneva 23, Switzerland.
[Banday, A. J.; Bernard, J. -P.; Bielewicz, P.; Forni, O.; Giard, M.; Jaffe, T. R.; Montier, L.; Pointecouteau, E.; Ristorcelli, I.] Univ Paris 06, UMR7095, F-75014 Paris, France.
[Battaner, E.] Univ Toulouse, UPS OMP, IRAP, F-31028 Toulouse 4, France.
[Gorski, K. M.] Univ Granada, Dept Fis Teor & Cosmos, Fac Ciencias, E-18071 Granada, Spain.
Univ Warsaw Observ, PL-00478 Warsaw, Poland.
RP Bartolo, N (reprint author), Univ Padua, Dipartimento Fis & Astron G Galilei, Via Marzolo 8, I-35131 Padua, Italy.
EM nicola.bartolo@pd.infn.it
RI Tomasi, Maurizio/I-1234-2016; Novikov, Igor/N-5098-2015; Colombo,
Loris/J-2415-2016; Nati, Federico/I-4469-2016; popa, lucia/B-4718-2012;
Piacentini, Francesco/E-7234-2010; Atrio-Barandela,
Fernando/A-7379-2017; Stolyarov, Vladislav/C-5656-2017; White,
Martin/I-3880-2015; Valiviita, Jussi/A-9058-2016; Kurki-Suonio,
Hannu/B-8502-2016; Lahteenmaki, Anne/L-5987-2013; Toffolatti,
Luigi/K-5070-2014; Martinez-Gonzalez, Enrique/E-9534-2015; Herranz,
Diego/K-9143-2014; Gonzalez-Nuevo, Joaquin/I-3562-2014; Gruppuso,
Alessandro/N-5592-2015; Novikov, Dmitry/P-1807-2015; Mazzotta,
Pasquale/B-1225-2016; Butler, Reginald/N-4647-2015; Barreiro, Rita
Belen/N-5442-2014; Vielva, Patricio/F-6745-2014; bonavera,
laura/E-9368-2017; Remazeilles, Mathieu/N-1793-2015; Yvon,
Dominique/D-2280-2015;
OI Tomasi, Maurizio/0000-0002-1448-6131; Colombo,
Loris/0000-0003-4572-7732; Nati, Federico/0000-0002-8307-5088;
Piacentini, Francesco/0000-0002-5444-9327; Atrio-Barandela,
Fernando/0000-0002-2130-2513; Stolyarov, Vladislav/0000-0001-8151-828X;
White, Martin/0000-0001-9912-5070; Valiviita, Jussi/0000-0001-6225-3693;
Kurki-Suonio, Hannu/0000-0002-4618-3063; Toffolatti,
Luigi/0000-0003-2645-7386; Martinez-Gonzalez,
Enrique/0000-0002-0179-8590; Herranz, Diego/0000-0003-4540-1417;
Gonzalez-Nuevo, Joaquin/0000-0003-1354-6822; Gruppuso,
Alessandro/0000-0001-9272-5292; Mazzotta, Pasquale/0000-0002-5411-1748;
Hivon, Eric/0000-0003-1880-2733; Lilje, Per/0000-0003-4324-7794;
Paoletti, Daniela/0000-0003-4761-6147; Galeotta,
Samuele/0000-0002-3748-5115; Ricciardi, Sara/0000-0002-3807-4043;
Zacchei, Andrea/0000-0003-0396-1192; Scott, Douglas/0000-0002-6878-9840;
Villa, Fabrizio/0000-0003-1798-861X; Franceschi,
Enrico/0000-0002-0585-6591; Mitra, Sanjit/0000-0002-0800-4626; TERENZI,
LUCA/0000-0001-9915-6379; Starck, Jean-Luc/0000-0003-2177-7794;
Lopez-Caniego, Marcos/0000-0003-1016-9283; Gregorio,
Anna/0000-0003-4028-8785; Polenta, Gianluca/0000-0003-4067-9196; Butler,
Reginald/0000-0003-4366-5996; Sandri, Maura/0000-0003-4806-5375;
Cuttaia, Francesco/0000-0001-6608-5017; Huffenberger,
Kevin/0000-0001-7109-0099; Burigana, Carlo/0000-0002-3005-5796; Bouchet,
Francois/0000-0002-8051-2924; Maris, Michele/0000-0001-9442-2754;
Valenziano, Luca/0000-0002-1170-0104; Matarrese,
Sabino/0000-0002-2573-1243; Pasian, Fabio/0000-0002-4869-3227; WANDELT,
Benjamin/0000-0002-5854-8269; Barreiro, Rita Belen/0000-0002-6139-4272;
Finelli, Fabio/0000-0002-6694-3269; Frailis, Marco/0000-0002-7400-2135;
Vielva, Patricio/0000-0003-0051-272X; bonavera,
laura/0000-0001-8039-3876; Rubino-Martin, Jose
Alberto/0000-0001-5289-3021; De Zotti, Gianfranco/0000-0003-2868-2595;
Masi, Silvia/0000-0001-5105-1439; de Bernardis,
Paolo/0000-0001-6547-6446; Morgante, Gianluca/0000-0001-9234-7412;
Remazeilles, Mathieu/0000-0001-9126-6266; Savini,
Giorgio/0000-0003-4449-9416; Pierpaoli, Elena/0000-0002-7957-8993;
Juvela, Mika/0000-0002-5809-4834
NR 282
TC 1126
Z9 1126
U1 21
U2 89
PU EDP SCIENCES S A
PI LES ULIS CEDEX A
PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A,
FRANCE
SN 1432-0746
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD NOV
PY 2014
VL 571
AR A24
DI 10.1051/0004-6361/201321554
PG 58
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AT9ZK
UT WOS:000345282600018
ER
PT J
AU Aylward, FO
Suen, G
Biedermann, PHW
Adams, AS
Scott, JJ
Malfatti, SA
del Rio, TG
Tringe, SG
Poulsen, M
Raffa, KF
Klepzig, KD
Currie, CR
AF Aylward, Frank O.
Suen, Garret
Biedermann, Peter H. W.
Adams, Aaron S.
Scott, Jarrod J.
Malfatti, Stephanie A.
del Rio, Tijana Glavina
Tringe, Susannah G.
Poulsen, Michael
Raffa, Kenneth F.
Klepzig, Kier D.
Currie, Cameron R.
TI Convergent Bacterial Microbiotas in the Fungal Agricultural Systems of
Insects
SO MBIO
LA English
DT Article
ID LEAF-CUTTER ANTS; GUT MICROBIOTA; PHYLOGENETIC CLASSIFICATION; BARK
BEETLES; GROWING ANTS; COMMUNITIES; DIVERSITY; HOST; DATABASE; GENES
AB The ability to cultivate food is an innovation that has produced some of the most successful ecological strategies on the planet. Although most well recognized in humans, where agriculture represents a defining feature of civilization, species of ants, beetles, and termites have also independently evolved symbioses with fungi that they cultivate for food. Despite occurring across divergent insect and fungal lineages, the fungivorous niches of these insects are remarkably similar, indicating convergent evolution toward this successful ecological strategy. Here, we characterize the microbiota of ants, beetles, and termites engaged in nutritional symbioses with fungi to define the bacterial groups associated with these prominent herbivores and forest pests. Using culture-independent techniques and the in silico reconstruction of 37 composite genomes of dominant community members, we demonstrate that different insect-fungal symbioses that collectively shape ecosystems worldwide have highly similar bacterial microbiotas comprised primarily of the genera Enterobacter, Rahnella, and Pseudomonas. Although these symbioses span three orders of insects and two phyla of fungi, we show that they are associated with bacteria sharing high whole-genome nucleotide identity. Due to the fine-scale correspondence of the bacterial microbiotas of insects engaged in fungal symbioses, our findings indicate that this represents an example of convergence of entire host-microbe complexes.
IMPORTANCE The cultivation of fungi for food is a behavior that has evolved independently in ants, beetles, and termites and has enabled many species of these insects to become ecologically important and widely distributed herbivores and forest pests. Although the primary fungal cultivars of these insects have been studied for decades, comparatively little is known of their bacterial microbiota. In this study, we show that diverse fungus-growing insects are associated with a common bacterial community composed of the same dominant members. Furthermore, by demonstrating that many of these bacteria have high whole-genome similarity across distantly related insect hosts that reside thousands of miles apart, we show that these bacteria are an important and underappreciated feature of diverse fungus-growing insects. Because of the similarities in the agricultural lifestyles of these insects, this is an example of convergence between both the life histories of the host insects and their symbiotic microbiota.
C1 [Aylward, Frank O.; Suen, Garret; Scott, Jarrod J.; Currie, Cameron R.] Univ Wisconsin, Dept Bacteriol, Madison, WI 53706 USA.
[Aylward, Frank O.; Scott, Jarrod J.; Currie, Cameron R.] Univ Wisconsin, Dept Energy, Great Lakes Bioenergy Res Ctr, Madison, WI USA.
[Biedermann, Peter H. W.] Max Planck Inst Chem Ecol, Insect Symbiosis Res Grp, Jena, Germany.
[Adams, Aaron S.; Raffa, Kenneth F.] Univ Wisconsin, Dept Entomol, Madison, WI 53706 USA.
[Scott, Jarrod J.] Smithsonian Trop Res Inst, Balboa, Ancon, Panama.
[Malfatti, Stephanie A.; del Rio, Tijana Glavina; Tringe, Susannah G.] Genome Inst, Dept Energy Joint, Walnut Creek, CA USA.
[Poulsen, Michael] Univ Copenhagen, Sect Ecol & Evolut, Dept Biol, Copenhagen, Denmark.
[Klepzig, Kier D.] US Forest Serv, USDA, Sourth Res Stn, Asheville, NC USA.
RP Aylward, FO (reprint author), Univ Wisconsin, Dept Bacteriol, Madison, WI 53706 USA.
EM faylward@hawaii.edu; currie@bact.wisc.edu
RI Biedermann, Peter/E-3641-2013;
OI Biedermann, Peter/0000-0003-4234-5659; Tringe,
Susannah/0000-0001-6479-8427; Suen, Garret/0000-0002-6170-711X; Poulsen,
Michael/0000-0002-2839-1715
FU Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231];
USDA NRI [2008-02438]; National Science Foundation [DEB-0747002,
MCB-0702025, MCB-0731822]; DOE Great Lakes Bioenergy Research Center
(DOE Office of Science BER) [DE-FC02-07ER64494]; SNSF [PB-BEP3_141472];
STENO grant from The Danish Council for Independent Research-Natural
Sciences
FX This work was supported by the Office of Science of the U.S. Department
of Energy under contract no. DE-AC02-05CH11231, the USDA NRI
(2008-02438), National Science Foundation grants DEB-0747002,
MCB-0702025, and MCB-0731822 to C.R.C., and the DOE Great Lakes
Bioenergy Research Center (DOE Office of Science BER DE-FC02-07ER64494).
P.H.W.B. was funded by an SNSF postdoctoral research grant
(PB-BEP3_141472), and M.P. was supported by a STENO grant from The
Danish Council for Independent Research-Natural Sciences.
NR 78
TC 13
Z9 13
U1 5
U2 13
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 2150-7511
J9 MBIO
JI mBio
PD NOV-DEC
PY 2014
VL 5
IS 6
AR e02077-14
DI 10.1128/mBio.02077-14
PG 10
WC Microbiology
SC Microbiology
GA AX7CE
UT WOS:000347073600038
PM 25406380
ER
PT J
AU Foo, JL
Jensen, HM
Dahl, RH
George, K
Keasling, JD
Lee, TS
Leong, S
Mukhopadhyay, A
AF Foo, Jee Loon
Jensen, Heather M.
Dahl, Robert H.
George, Kevin
Keasling, Jay D.
Lee, Taek Soon
Leong, Susanna
Mukhopadhyay, Aindrila
TI Improving Microbial Biogasoline Production in Escherichia coli Using
Tolerance Engineering
SO MBIO
LA English
DT Article
ID ISOPRENOID PRODUCTION; ALDEHYDE REDUCTASE; HEAT-SHOCK; ONE-POT;
RESISTANCE; GENES; EXPRESSION; PROTEINS; PATHWAY; METHYLTRANSFERASE
AB Engineering microbial hosts for the production of fungible fuels requires mitigation of limitations posed on the production capacity. One such limitation arises from the inherent toxicity of solvent-like biofuel compounds to production strains, such as Escherichia coli. Here we show the importance of host engineering for the production of short-chain alcohols by studying the overexpression of genes upregulated in response to exogenous isopentenol. Using systems biology data, we selected 40 genes that were upregulated following isopentenol exposure and subsequently overexpressed them in E. coli. Overexpression of several of these candidates improved tolerance to exogenously added isopentenol. Genes conferring isopentenol tolerance phenotypes belonged to diverse functional groups, such as oxidative stress response (soxS, fpr, and nrdH), general stress response (metR, yqhD, and gidB), heat shock-related response (ibpA), and transport (mdlB). To determine if these genes could also improve isopentenol production, we coexpressed the tolerance-enhancing genes individually with an isopentenol production pathway. Our data show that expression of 6 of the 8 candidates improved the production of isopentenol in E. coli, with the methionine biosynthesis regulator MetR improving the titer for isopentenol production by 55%. Additionally, expression of MdlB, an ABC transporter, facilitated a 12% improvement in isopentenol production. To our knowledge, MdlB is the first example of a transporter that can be used to improve production of a short-chain alcohol and provides a valuable new avenue for host engineering in biogasoline production.
IMPORTANCE The use of microbial host platforms for the production of bulk commodities, such as chemicals and fuels, is now a focus of many biotechnology efforts. Many of these compounds are inherently toxic to the host microbe, which in turn places a limit on production despite efforts to optimize the bioconversion pathways. In order to achieve economically viable production levels, it is also necessary to engineer production strains with improved tolerance to these compounds. We demonstrate that microbial tolerance engineering using transcriptomics data can also identify targets that improve production. Our results include an exporter and a methionine biosynthesis regulator that improve isopentenol production, providing a starting point to further engineer the host for biogasoline production.
C1 [Foo, Jee Loon] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 639798, Singapore.
[Foo, Jee Loon; Jensen, Heather M.; George, Kevin; Keasling, Jay D.; Lee, Taek Soon; Mukhopadhyay, Aindrila] Joint BioEnergy Inst, Emeryville, CA 94608 USA.
[Foo, Jee Loon; Leong, Susanna] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Biochem, Singapore 117595, Singapore.
[Jensen, Heather M.; George, Kevin; Keasling, Jay D.; Lee, Taek Soon; Mukhopadhyay, Aindrila] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Dahl, Robert H.; Keasling, Jay D.] Univ Calif Berkeley, Dept Biomol & Chem Engn, Berkeley, CA 94720 USA.
[Dahl, Robert H.; Keasling, Jay D.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
[Leong, Susanna] Singapore Inst Technol, Singapore, Singapore.
RP Mukhopadhyay, A (reprint author), Joint BioEnergy Inst, Emeryville, CA 94608 USA.
EM amukhopadhyay@lbl.gov
FU U.S. Department of Energy, Office of Science [DE-AC02-05CH11231];
National Research Foundation of Singapore [NRF-CRP5-2009-03]; U.S.
Department of Energy, Office of Biological and Environmental Research
[DE-AC02-05CH11231]
FX This work was part of the DOE Joint BioEnergy Institute partnership
(http://www.jbei.org) supported by the U.S. Department of Energy, Office
of Science, Office of Biological and Environmental Research, through
contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory
and the U.S. Department of Energy. Jee Loon Foo was supported by the
Competitive Research Program of the National Research Foundation of
Singapore (NRF-CRP5-2009-03).
NR 46
TC 14
Z9 16
U1 2
U2 6
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 2150-7511
J9 MBIO
JI mBio
PD NOV-DEC
PY 2014
VL 5
IS 6
AR e01932-14
DI 10.1128/mBio.01932-14
PG 9
WC Microbiology
SC Microbiology
GA AX7CE
UT WOS:000347073600020
PM 25370492
ER
PT J
AU Belleri, A
Lollini, R
Dutton, SM
AF Belleri, Annamaria
Lollini, Roberto
Dutton, Spencer M.
TI Natural ventilation design: An analysis of predicted and measured
performance
SO BUILDING AND ENVIRONMENT
LA English
DT Article
DE Natural ventilation; Early-design-stage; Uncertainty analysis; Air
change rates; Occupant behavior; Airflow network
AB We present a study of natural ventilation design during the early (conceptual) stage of a building's design, based on a field study in a naturally ventilated office in California where we collected data on occupants' window use, local weather conditions, indoor environmental conditions, and air change rates based on tracer-gas decay. We performed uncertainty and sensitivity analyses to determine which design parameters have most impact on the uncertainty associated with ventilation performance predictions. Using the results of the field study along with wind-tunnel measurements and other detailed analysis, we incrementally improved our early-design-stage model. The improved model's natural ventilation performance predictions were significantly more accurate than those of the first draft early-stage-design model that employed model assumptions typical during initial design. This process highlighted significant limitations in the EnergyPlus software's models of occupant-driven window control. We conclude with recommendations on key design parameters including window control, wind pressure coefficients and weather data resolution to help improve early-design-stage predictions of natural ventilation performance using EnergyPlus. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Belleri, Annamaria; Lollini, Roberto] Inst Renewable Energy, EURAC Res, Bolzano, Italy.
[Belleri, Annamaria] Univ Bergamo, Bergamo, Italy.
[Dutton, Spencer M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Belleri, A (reprint author), Viale Druso 1, I-39100 Bolzano, Italy.
EM annamaria.belleri@eurac.edu
OI Lollini, Roberto/0000-0003-0480-1166
FU Cariplo Foundation [(2011)AP-02]; California Energy Commission; Public
Interest Energy Research Program; Buildings End Use Energy Efficiency
Program [500-10-025]; U.S. Department of Energy [DE-AC03-76SF00098]
FX This work was supported by Cariplo Foundation, (2011)AP-02 "Promoting
the training of human capital for excellence" (2011) and by the
California Energy Commission, Public Interest Energy Research Program,
Buildings End Use Energy Efficiency Program, Contract number 500-10-025,
through the U.S. Department of Energy under contract DE-AC03-76SF00098.
The authors would like to thank our partners Edward Arens and Hui Zhang,
from the University of California (UC) Berkeley Center for the Built
Environment; David Banks from CPP Engineering; William Fisk and Priya
Gandhi for their valuable input and Nan Wishner for editing.
NR 29
TC 14
Z9 14
U1 2
U2 18
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-1323
EI 1873-684X
J9 BUILD ENVIRON
JI Build. Environ.
PD NOV
PY 2014
VL 81
BP 123
EP 138
DI 10.1016/j.buildenv.2014.06.009
PG 16
WC Construction & Building Technology; Engineering, Environmental;
Engineering, Civil
SC Construction & Building Technology; Engineering
GA AQ1HJ
UT WOS:000342532200014
ER
PT J
AU Puretzky, AA
Merkulov, IA
Rouleau, CM
Eres, G
Geohegan, DB
AF Puretzky, A. A.
Merkulov, I. A.
Rouleau, C. M.
Eres, G.
Geohegan, D. B.
TI Revealing the surface and bulk regimes of isothermal graphene nucleation
and growth on Ni with in situ kinetic measurements and modeling
SO CARBON
LA English
DT Article
ID CHEMICAL-VAPOR-DEPOSITION; FEW-LAYER GRAPHENE; HIGH-QUALITY GRAPHENE;
LARGE-AREA; MONOLAYER GRAPHENE; POLYCRYSTALLINE NI; BILAYER GRAPHENE;
CARBON; NICKEL; MECHANISM
AB In situ optical diagnostics are used to reveal the isothermal nucleation and growth kinetics of graphene on Ni across a wide temperature range (560 degrees C < T < 840 degrees C) by chemical vapor deposition from single, sub-second pulses of acetylene. An abrupt, two-orders of magnitude change in growth times (similar to 100-1 s) is revealed at T = 680 degrees C. Above this temperature, sigmoidal kinetics are measured and attributed to autocatalytic nucleation and growth from carbon dissolved in the bulk of the Ni film. However, for T < 680 degrees C fast surface nucleation and growth occurring during the gas pulse appears responsible for the drastic alteration of the kinetics of subsequent dissolution-mediated growth. A simple and general kinetic model for isothermal graphene growth is developed that includes the nucleation phase and the effects of carbon solubility in metals, describes delayed nucleation, and allows the interpretation of the competition between surface- and bulk-nucleation and growth. The easily-implemented optical reflectivity diagnostics and the simple kinetic model described here allow a pathway to optimize the growth of graphene on metals with arbitrary carbon solubility. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Puretzky, A. A.; Merkulov, I. A.; Rouleau, C. M.; Eres, G.; Geohegan, D. B.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Puretzky, AA (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM puretzkya@ornl.gov
RI Rouleau, Christopher/Q-2737-2015; Puretzky, Alexander/B-5567-2016;
Geohegan, David/D-3599-2013; Eres, Gyula/C-4656-2017
OI Rouleau, Christopher/0000-0002-5488-3537; Puretzky,
Alexander/0000-0002-9996-4429; Geohegan, David/0000-0003-0273-3139;
Eres, Gyula/0000-0003-2690-5214
FU Materials Sciences and Engineering Division, Office of Basic Energy
Sciences, U.S. Department of Energy; Scientific User Facilities
Division, Office of Basic Energy Sciences, U.S. Department of Energy
FX Synthesis science was sponsored by the Materials Sciences and
Engineering Division, Office of Basic Energy Sciences, U.S. Department
of Energy. Characterization science including Raman spectroscopy was
developed 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 48
TC 4
Z9 4
U1 3
U2 51
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0008-6223
EI 1873-3891
J9 CARBON
JI Carbon
PD NOV
PY 2014
VL 79
BP 256
EP 264
DI 10.1016/j.carbon.2014.07.066
PG 9
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA AQ2YY
UT WOS:000342657100026
ER
PT J
AU Vial, S
Nykypanchuk, D
Deepak, FL
Prado, M
Gang, O
AF Vial, Stephanie
Nykypanchuk, Dmytro
Deepak, Francis Leonard
Prado, Marta
Gang, Oleg
TI Plasmonic response of DNA-assembled gold nanorods: Effect of DNA linker
length, temperature and linker/nanoparticles ratio
SO JOURNAL OF COLLOID AND INTERFACE SCIENCE
LA English
DT Article
DE Plasmon coupling; Gold nanorod; DNA; Self-assembly
ID NANOPARTICLE ASSEMBLIES; OPTICAL-PROPERTIES; CRYSTALLIZATION;
AGGREGATION; GROWTH
AB Optical properties of gold nanorod (AuNR) particles self-assembled with DNA are systematically investigated. The particles assembly is driven by specific base-pair recognition between single strand (ss) DNA linker and DNA anchored to AuNRs, and it results in the distance- and morphology-dependent plasmonic coupling of AuNRs. The longitudinal plasmon band is distinctly affected by tuning the length of DNA linker, the temperature and linker/AuNRs ratio. We observed that the increase of temperature enhances the interparticle interactions and leads to clear distinguishable plasmonic signals between linker lengths up to 100 bases. Both absorbance decrease and shift of the longitudinal plasmon allow for use of AuNR for the DNA sensing applications. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Vial, Stephanie; Deepak, Francis Leonard; Prado, Marta] Int Iberian Nanotechnol, P-4715330 Braga, Portugal.
[Nykypanchuk, Dmytro; Gang, Oleg] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Vial, S (reprint author), Univ Minho, Headquarters European Inst Excellence Tissue Engn, Res Grp Biomat Biodegradables & Biomimet 3Bs, P-4806909 Taipas, Guimaraes, Portugal.
EM stephanie.vial@dep.uminho.pt; dnykypan@bnl.gov; leonard.francis@inl.int;
marta.prado@inl.int; ogang@bnl.gov
RI Prado, Marta/K-7365-2012; INL, Citations/K-3436-2015
OI Vial, Stephanie/0000-0002-8714-0713; Francis,
Leonard/0000-0002-3833-1775; Prado, Marta/0000-0002-0529-5771; INL,
Citations/0000-0002-3745-5100
FU Self assembled nanostructures and functionalization protocols for
biomedical, food quality, and environment control
[SAESCTN-PLICDT/1/2011]; U.S. Department of Energy, Office of Basic
Energy Sciences [DE-AC02-98CH10886]; Norte Regional Operational
programme (ON.2 - O Novo Norte), under the National Strategic Referenced
Framework Programme (QREN); European Regional Devevelopment Fund (FEDER)
FX The authors thank Dr. Jhon Gonzalez for the discussion, his technical
help and his support during the manuscript process. SV acknowledges
financial support from "Self assembled nanostructures and
functionalization protocols for biomedical, food quality, and
environment control" "integrated programme (SAESCTN-PLIC&DT/1/2011),
financed by the Norte Regional Operational programme (ON.2 - O Novo
Norte), under the National Strategic Referenced Framework Programme
(QREN), through the European Regional Devevelopment Fund (FEDER)".
Research carried out at the Center for Functional Nanomaterials,
Brookhaven National Laboratory, was supported by the U.S. Department of
Energy, Office of Basic Energy Sciences, under Contract No.
DE-AC02-98CH10886.
NR 35
TC 2
Z9 2
U1 6
U2 100
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9797
EI 1095-7103
J9 J COLLOID INTERF SCI
JI J. Colloid Interface Sci.
PD NOV 1
PY 2014
VL 433
BP 34
EP 42
DI 10.1016/j.jcis.2014.07.020
PG 9
WC Chemistry, Physical
SC Chemistry
GA AQ1IR
UT WOS:000342535600005
PM 25112910
ER
PT J
AU Beriguete, W
Cao, J
Ding, YY
Hans, S
Heeger, KM
Hu, LM
Huang, AZ
Luk, KB
Nemchenok, I
Qi, M
Rosero, R
Sun, HS
Wang, RG
Wang, YF
Wen, LJ
Yang, Y
Yeh, MF
Zhang, ZY
Zhou, L
AF Beriguete, Wanda
Cao, Jun
Ding, Yayun
Hans, Sunej
Heeger, Karsten M.
Hu, Liangming
Huang, Aizhong
Luk, Kam-Biu
Nemchenok, Igor
Qi, Ming
Rosero, Richard
Sun, Hansheng
Wang, Ruiguang
Wang, Yifang
Wen, Liangjian
Yang, Yi
Yeh, Minfang
Zhang, Zhiyong
Zhou, Li
TI Production of a gadolinium-loaded liquid scintillator for the Daya Bay
reactor neutrino experiment
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Daya Bay; Reactor; Antineutrino; Gadolinium; Metal-loaded liquid
scintillator; Linear alkyl benzene
AB We report on the production and characterization of liquid scintillators for the detection of electron antineutrinos by the Daya Bay reactor neutrino experiment. A 185 tons of gadolinium-loaded (0.1% by mass) liquid scintillator (Gd-LS) and a 200 tons of unloaded liquid scintillator (LS) were successfully produced from a linear-alkylbenzene (LAB) solvent in 6 months. The scintillator properties, the production and purification systems, and the quality assurance and control (QA/QC) procedures are described. (C) 2014 Elsevier By. All rights reserved.
C1 [Beriguete, Wanda; Hans, Sunej; Hu, Liangming; Rosero, Richard; Yeh, Minfang] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Cao, Jun; Ding, Yayun; Sun, Hansheng; Wang, Ruiguang; Wang, Yifang; Wen, Liangjian; Yang, Yi; Zhang, Zhiyong; Zhou, Li] Inst High Energy Phys, Beijing 100039, Peoples R China.
[Heeger, Karsten M.] Univ Wisconsin, Madison, WI USA.
[Heeger, Karsten M.] Yale Univ, New Haven, CT USA.
[Huang, Aizhong] Jinling Petrochem Corp, Nanjing, Jiangsu, Peoples R China.
[Luk, Kam-Biu] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Luk, Kam-Biu] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Nemchenok, Igor] Joint Inst Nucl Res, Moscow 101000, Russia.
[Qi, Ming] Nanjing Univ, Nanjing 210008, Jiangsu, Peoples R China.
RP Ding, YY (reprint author), Inst High Energy Phys, Beijing 100039, Peoples R China.
EM dingyy@ihep.ac.cn; yeh@bnl.gov
RI Nemchenok, Igor/F-9715-2014; Cao, Jun/G-8701-2012
OI Cao, Jun/0000-0002-3586-2319
FU Ministry of Science and Technology of China [2013CB834300]; National
Natural Science Foundation of China [11005117]; U.S. Department of
Energy, Office of High Energy Physics and Office of Nuclear Physics
[DE-AC02-98CH10886, DE-AC02-05CH11231]
FX We would like to express our gratitude to the technical staffs of 1HEP
for excellent support in production, to Raymond Kwok and his colleagues
at CUHK for sample arrangement and shipment for long-term stability
monitoring, and to Jinchang Liu, Chengju Lin, WeiliZhong, and J. Pedro
Ochoa from IHEP and LBNL for interesting discussions and for help in the
attenuation length assessments. This work was partially supported by the
Ministry of Science and Technology of China (Grant no. 2013CB834300),
National Natural Science Foundation of China (Grant no. 11005117), the
U.S. Department of Energy, Office of High Energy Physics and Office of
Nuclear Physics (under Contract nos. DE-AC02-98CH10886 and
DE-AC02-05CH11231).
NR 18
TC 7
Z9 7
U1 1
U2 18
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 82
EP 88
DI 10.1016/j.nirna.2014.05.110
PG 7
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200011
ER
PT J
AU Lakshmanan, MN
Harrawood, BP
Rusev, G
Agasthya, GA
Kapadia, AJ
AF Lakshmanan, Manu N.
Harrawood, Brian P.
Rusev, Gencho
Agasthya, Greeshma A.
Kapadia, Anuj J.
TI Simulations of nuclear resonance fluorescence in GEANT4
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Nuclear resonance fluorescence; GEANT4; Simulation benchmarking
ID GAMMA-RAYS; EXCITED STATE; IRON STORES; SCATTERING; QUANTIFICATION;
SPECTROSCOPY; TEMPERATURE; LIFETIME; WIDTHS; B-11
AB The nuclear resonance fluorescence (NRF) technique has been used effectively to identify isotopes based on their nuclear energy levels. Specific examples of its modern-day applications include detecting spent nuclear waste and cargo scanning for homeland security. The experimental designs for these NRF applications can be more efficiently optimized using Monte Carlo simulations before the experiment is implemented. One of the most widely used Monte Carlo physics simulations is the open-source toolkit GEANT4. However, NRF physics has not been incorporated into the GEANT4 simulation toolkit in publicly available software. Here we describe the development and testing of an NRF simulation in GEANT4. We describe in depth the development and architecture of this software for the simulation of NRF in any isotope in GEANT4; as well as verification and validation testing of the simulation for NRF in boron.
In the verification testing, the simulation showed agreement with the analytical model to be within 0.6% difference for boron and iron. In the validation testing, the simulation showed agreement to be within 20.5% difference with the experimental measurements for boron, with the percent difference likely due to small uncertainties in beam polarization, energy distribution, and detector composition. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Lakshmanan, Manu N.; Harrawood, Brian P.; Agasthya, Greeshma A.; Kapadia, Anuj J.] Duke Univ, Med Ctr, Dept Radiol, Ravin Adv Imaging Labs, Durham, NC 27710 USA.
[Rusev, Gencho] Los Alamos Natl Lab, Div Chem, Los Alamos, NM USA.
RP Lakshmanan, MN (reprint author), Duke Univ, Med Ctr, Dept Radiol, Ravin Adv Imaging Labs, Durham, NC 27710 USA.
EM mnL7@duke.edu
RI Kapadia, Anuj/C-6538-2016;
OI Kapadia, Anuj/0000-0003-2755-4495; Rusev, Gencho/0000-0001-7563-1518
NR 48
TC 3
Z9 3
U1 0
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 89
EP 96
DI 10.1016/j.nima.2014.06.030
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200012
ER
PT J
AU Novokhatski, A
Mosnier, A
AF Novokhatski, Alexander
Mosnier, Alban
TI Short bunch wake potentials for a chain of TESLA cavities
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Wake field potentials; Accelerating structure; Loss factor
ID LONGITUDINAL IMPEDANCE; HIGH-FREQUENCY
AB The modification of wake fields from a single cavity to a quasi periodic structure of cavities is of great concern, especially for applications using very short bunches. We extend our former study (Novokhatski, 1997 [1]). A strong modification of wake fields along a train of cavities was clearly found for bunch lengths lower than 1 mm. In particular, the wakes induced by the bunch, as it proceeds down the successive cavities, decrease in amplitude and become more linear around the bunch center, with a profile very close to the integral of the charge density. The loss factor, decreasing also with the number of cells, becomes independent of bunch length for very short bunches and tends asymptotically to a finite value. This nice behavior of wake fields for short bunches presents good opportunity for application of very short bunches in Linear Colliders and X-ray Free Electron Lasers. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Novokhatski, Alexander] SLAC, Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
[Mosnier, Alban] CEA Saclay, IRFU, Inst Res Fundamental Laws Univ, F-91191 Gif Sur Yvette, France.
RP Novokhatski, A (reprint author), SLAC, Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
EM novo@slac.stanford.oclu
FU Department of Energy [DOE-AC03-76SF00515]
FX The authors would like to thank Mike Sullivan and Olivier Napoly for
fruitful discussions. Work supported by Department of Energy Contract
no. DOE-AC03-76SF00515.
NR 12
TC 1
Z9 1
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 202
EP 209
DI 10.1016/j.nima.2014.06.049
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200029
ER
PT J
AU Mitchell, AJ
Bertone, PF
DiGiovine, B
Lister, CJ
Carpenter, MP
Chowdhury, P
Clark, JA
D'Olympia, N
Deo, AY
Kondev, FG
McCutchan, EA
Rohrer, J
Savard, G
Seweryniak, D
Zhu, S
AF Mitchell, A. J.
Bertone, P. F.
DiGiovine, B.
Lister, C. J.
Carpenter, M. P.
Chowdhury, P.
Clark, J. A.
D'Olympia, N.
Deo, A. Y.
Kondev, F. G.
McCutchan, E. A.
Rohrer, J.
Savard, G.
Seweryniak, D.
Zhu, S.
TI The X-Array and SATURN: A new decay-spectroscopy station for CARIBU
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Neutron-rich exotic nuclei; beta decay; HPGe detectors; Plastic
Scintillator detectors; Tape-Transport system
ID SYSTEM
AB A new decay-spectroscopy station has been commissioned for experiments with low-energy, fission-fragment radioactive beams from the CARIBU ion source. The new set-up consists of the 'X-Array, a highly-efficient array of HPGe clover detectors, and 'SATURN' (Scintillator And Tape Using Radioactive Nuclei), a plastic scintillator detector combined with a tape-transport system for detection of beta particles and removal of long-lived isobaric decay products. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Mitchell, A. J.; Lister, C. J.; Chowdhury, P.; D'Olympia, N.; Deo, A. Y.] Univ Massachusetts Lowell, Dept Phys & Appl Phys, Lowell, MA 01854 USA.
[Bertone, P. F.; DiGiovine, B.; Carpenter, M. P.; Clark, J. A.; Kondev, F. G.; McCutchan, E. A.; Rohrer, J.; Savard, G.; Seweryniak, D.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Savard, G.] Univ Chicago, Dept Phys, Chicago, IL 60637 USA.
RP Mitchell, AJ (reprint author), Univ Massachusetts Lowell, Dept Phys & Appl Phys, Lowell, MA 01854 USA.
EM alan_mitchell@uml.edu
RI Carpenter, Michael/E-4287-2015; Mitchell, Alan John/M-4486-2015
OI Carpenter, Michael/0000-0002-3237-5734; Mitchell, Alan
John/0000-0002-6742-695X
FU US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357,
DE-FG02-94ER40848]
FX The authors wish to express their thanks to E. Zganjar of Louisiana
State University for education on the design of tape-transport systems,
the Engineering Department at Argonne National Laboratory and the
Submillimeter-Wave Technology Laboratory, University of Massachusetts
Lowell. This work was supported by the US Department of Energy, Office
of Nuclear Physics, under Contract nos. DE-AC02-06CH11357 and
DE-FG02-94ER40848.
NR 11
TC 2
Z9 2
U1 1
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 232
EP 239
DI 10.1016/j.nima.2014.06.024
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200032
ER
PT J
AU Francis, K
Repond, J
Schlereth, J
Smith, J
Xia, L
Baldolemar, E
Li, J
Park, ST
Sosebee, M
White, AP
Yu, J
Eigen, G
Mikami, Y
Watson, NK
Thomson, MA
Ward, DR
Benchekroun, D
Hoummada, A
Khoulaki, Y
Apostolakis, J
Dotti, A
Folger, G
Ivantchenko, V
Ribon, A
Uzhinskiy, V
Carloganu, C
Gay, P
Manen, S
Royer, L
Tytgat, M
Zaganidis, N
Blazey, GC
Dyshkant, A
Lima, JGR
Zutshi, V
Hostachy, JY
Morin, L
Cornett, U
David, D
Ebrahimi, A
Falley, G
Gadow, K
Gottlicher, P
Gunter, C
Hartbrich, O
Hermberg, B
Karstensen, S
Krivan, F
Kruger, K
Lutz, B
Morozov, S
Morgunov, V
Neubuser, C
Reinecke, M
Sefkow, F
Smirnov, P
Terwort, M
Garutti, E
Laurien, S
Lu, S
Marchesini, I
Matysek, M
Ramilli, M
Briggl, K
Eckert, P
Harion, T
Schultz-Coulon, HC
Shen, W
Stamen, R
Bilki, B
Norbeck, E
Northacker, D
Onel, Y
Wilson, GW
Kawagoe, K
Sudo, Y
Yoshioka, T
Dauncey, PD
Wing, M
Salvatore, F
Gil, EC
Mannai, S
Baulieu, G
Calabria, P
Caponetto, L
Combaret, C
Della Negra, R
Grenier, G
Han, R
Ianigro, JC
Kieffer, R
Laktineh, I
Lumb, N
Mathez, H
Mirabito, L
Petrukhin, A
Steen, A
Tromeur, W
Vander Donckt, M
Zoccarato, Y
Alamillo, EC
Fouz, MC
Puerta-Pelayo, J
Corriveau, F
Bobchenko, B
Chadeeva, M
Danilov, M
Epifantsev, A
Markin, O
Mizuk, R
Novikov, E
Popov, V
Rusinov, V
Tarkovsky, E
Besson, D
Buzhan, P
Ilyin, A
Kantserov, V
Kaplin, V
Karakash, A
Popova, E
Tikhomirov, V
Kiesling, C
Seidel, K
Simon, F
Soldner, C
Weuste, L
Amjad, MS
Bonis, J
Callier, S
di Lorenzo, SC
Cornebise, P
Doublet, P
Dulucq, F
Fleury, J
Frisson, T
van der Kolk, N
Li, H
Martin-Chassard, G
Richard, F
de la Taille, C
Poschl, R
Raux, L
Rouene, J
Seguin-Moreau, N
Anduze, M
Balagura, V
Boudry, V
Brient, JC
Cornat, R
Frotin, M
Gastaldi, F
Guliyev, E
Haddad, Y
Magniette, F
Musat, G
Ruan, M
Tran, TH
Videau, H
Bulanek, B
Zacek, J
Cvach, J
Gallus, P
Havranek, M
Janata, M
Kvasnicka, J
Lednicky, D
Marcisovsky, M
Polak, I
Popule, J
Tomasek, L
Tomasek, M
Ruzicka, P
Sicho, P
Smolik, J
Vrba, V
Zalesak, J
Belhorma, B
Ghazlane, H
Kotera, K
Ono, H
Takeshita, T
Uozumi, S
Jeans, D
Chang, S
Khan, A
Kim, DH
Kong, DJ
Oh, YD
Gotze, M
Sauer, J
Weber, S
Zeitnitz, C
AF Francis, K.
Repond, J.
Schlereth, J.
Smith, J.
Xia, L.
Baldolemar, E.
Li, J.
Park, S. T.
Sosebee, M.
White, A. P.
Yu, J.
Eigen, G.
Mikami, Y.
Watson, N. K.
Thomson, M. A.
Ward, D. R.
Benchekroun, D.
Hoummada, A.
Khoulaki, Y.
Apostolakis, J.
Dotti, A.
Folger, G.
Ivantchenko, V.
Ribon, A.
Uzhinskiy, V.
Carloganu, C.
Gay, P.
Manen, S.
Royer, L.
Tytgat, M.
Zaganidis, N.
Blazey, G. C.
Dyshkant, A.
Lima, J. G. R.
Zutshi, V.
Hostachy, J. -Y.
Morin, L.
Cornett, U.
David, D.
Ebrahimi, A.
Falley, G.
Gadow, K.
Goettlicher, P.
Guenter, C.
Hartbrich, O.
Hermberg, B.
Karstensen, S.
Krivan, F.
Krueger, K.
Lutz, B.
Morozov, S.
Morgunov, V.
Neubueser, C.
Reinecke, M.
Sefkow, F.
Smirnov, P.
Terwort, M.
Garutti, E.
Laurien, S.
Lu, S.
Marchesini, I.
Matysek, M.
Ramilli, M.
Briggl, K.
Eckert, P.
Harion, T.
Schultz-Coulon, H. -Ch.
Shen, W.
Stamen, R.
Bilki, B.
Norbeck, E.
Northacker, D.
Onel, Y.
Wilson, G. W.
Kawagoe, K.
Sudo, Y.
Yoshioka, T.
Dauncey, P. D.
Wing, M.
Salvatore, F.
Gil, E. Cortina
Mannai, S.
Baulieu, G.
Calabria, P.
Caponetto, L.
Combaret, C.
Della Negra, R.
Grenier, G.
Han, R.
Ianigro, J. -C.
Kieffer, R.
Laktineh, I.
Lumb, N.
Mathez, H.
Mirabito, L.
Petrukhin, A.
Steen, A.
Tromeur, W.
Vander Donckt, M.
Zoccarato, Y.
Calvo Alamillo, E.
Fouz, M. -C.
Puerta-Pelayo, J.
Corriveau, F.
Bobchenko, B.
Chadeeva, M.
Danilov, M.
Epifantsev, A.
Markin, O.
Mizuk, R.
Novikov, E.
Popov, V.
Rusinov, V.
Tarkovsky, E.
Besson, D.
Buzhan, P.
Ilyin, A.
Kantserov, V.
Kaplin, V.
Karakash, A.
Popova, E.
Tikhomirov, V.
Kiesling, C.
Seidel, K.
Simon, F.
Soldner, C.
Weuste, L.
Amjad, M. S.
Bonis, J.
Callier, S.
di Lorenzo, S. Conforti
Cornebise, P.
Doublet, Ph.
Dulucq, F.
Fleury, J.
Frisson, T.
van der Kolk, N.
Li, H.
Martin-Chassard, G.
Richard, F.
de la Taille, Ch.
Poeschl, R.
Raux, L.
Rouene, J.
Seguin-Moreau, N.
Anduze, M.
Balagura, V.
Boudry, V.
Brient, J. -C.
Cornat, R.
Frotin, M.
Gastaldi, F.
Guliyev, E.
Haddad, Y.
Magniette, F.
Musat, G.
Ruan, M.
Tran, T. H.
Videau, H.
Bulanek, B.
Zacek, J.
Cvach, J.
Gallus, P.
Havranek, M.
Janata, M.
Kvasnicka, J.
Lednicky, D.
Marcisovsky, M.
Polak, I.
Popule, J.
Tomasek, L.
Tomasek, M.
Ruzicka, P.
Sicho, P.
Smolik, J.
Vrba, V.
Zalesak, J.
Belhorma, B.
Ghazlane, H.
Kotera, K.
Ono, H.
Takeshita, T.
Uozumi, S.
Jeans, D.
Chang, S.
Khan, A.
Kim, D. H.
Kong, D. J.
Oh, Y. D.
Goetze, M.
Sauer, J.
Weber, S.
Zeitnitz, C.
TI Performance of the first prototype of the CALICE scintillator strip
electromagnetic calorimeter
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Particle Flow; Electromagnetic calorimeter; Scintillator; MPPC
AB A first prototype of a scintillator strip-based electromagnetic calorimeter was built, consisting of 26 layers of tungsten absorber plates interleaved with planes of 45 x 10 x 3 mm plastic scintillator strips. Data were collected using a positron test beam at DESY with momenta between 1 and 6 GeV/c. The prototype's performance is presented in terms of the linearity and resolution of the energy measurement. These results represent an important milestone in the development of highly granular calorimeters using scintillator strip technology. A number of possible design improvements were identified, which should be implemented in a future detector of this type. This technology is being developed for a future linear collider experiment, aiming at the precise measurement of jet energies using particle flow techniques. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Francis, K.; Repond, J.; Schlereth, J.; Smith, J.; Xia, L.; Bilki, B.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Baldolemar, E.; Li, J.; Park, S. T.; Sosebee, M.; White, A. P.; Yu, J.] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA.
[Eigen, G.] Univ Bergen, Inst Phys, N-5007 Bergen, Norway.
[Mikami, Y.; Watson, N. K.] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England.
[Thomson, M. A.; Ward, D. R.] Univ Cambridge, Cavendish Lab, Cambridge CB3 OHE, England.
[Benchekroun, D.; Hoummada, A.; Khoulaki, Y.] Univ Hassan II Ain Chock, Fac Sci, Casablanca, Morocco.
[Apostolakis, J.; Dotti, A.; Folger, G.; Ivantchenko, V.; Ribon, A.; Uzhinskiy, V.] CERN, CH-1211 Geneva 23, Switzerland.
[Carloganu, C.; Gay, P.; Manen, S.; Royer, L.] Univ Clermont Ferrand, Clermont Univ, CNRS, Phys Corpusculaire Lab,IN2P3, F-63000 Clermont Ferrand, France.
[Tytgat, M.; Zaganidis, N.] Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium.
[Blazey, G. C.; Dyshkant, A.; Lima, J. G. R.; Zutshi, V.] No Illinois Univ, NICADD, Dept Phys, De Kalb, IL 60115 USA.
[Hostachy, J. -Y.; Morin, L.] Univ Grenoble 1, CNRS, Inst Polytech Grenoble, Lab Phys Subatom & Cosmol,IN2P3, F-38026 Grenoble, France.
[Cornett, U.; David, D.; Ebrahimi, A.; Falley, G.; Gadow, K.; Goettlicher, P.; Guenter, C.; Hartbrich, O.; Hermberg, B.; Karstensen, S.; Krivan, F.; Krueger, K.; Lutz, B.; Morozov, S.; Morgunov, V.; Neubueser, C.; Reinecke, M.; Sefkow, F.; Smirnov, P.; Terwort, M.; Marchesini, I.] DESY, D-22603 Hamburg, Germany.
[Garutti, E.; Laurien, S.; Lu, S.; Marchesini, I.; Matysek, M.; Ramilli, M.] Univ Hamburg, Inst Expt Phys, Dept Phys, D-22761 Hamburg, Germany.
[Briggl, K.; Eckert, P.; Harion, T.; Schultz-Coulon, H. -Ch.; Shen, W.; Stamen, R.] Heidelberg Univ, Fac Phys & Astron, D-69120 Heidelberg, Germany.
[Bilki, B.; Norbeck, E.; Northacker, D.; Onel, Y.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA.
[Wilson, G. W.] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA.
[Kawagoe, K.; Sudo, Y.; Yoshioka, T.] Kyushu Univ, Dept Phys, Fukuoka 8128581, Japan.
[Dauncey, P. D.] Univ London Imperial Coll Sci Technol & Med, Dept Phys, Blackett Lab, London SW7 2AZ, England.
[Wing, M.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Salvatore, F.] Royal Holloway Univ London, Dept Phys, Egham TW20 0EX, Surrey, England.
[Gil, E. Cortina; Mannai, S.] Catholic Univ Louvain, Ctr Cosmol Particle Phys & Cosmol CP3, B-1320 Louvain la Neuve, Belgium.
Univ Lyon 1, CNRS, IPNL, IN2P3, F-69622 Villeurbanne, France.
[Calvo Alamillo, E.; Fouz, M. -C.; Puerta-Pelayo, J.] CIEMAT, E-28040 Madrid, Spain.
[Corriveau, F.] Inst Particle Phys Canada, Montreal, PQ H3A 2T8, Canada.
[Corriveau, F.] Dept Phys, Montreal, PQ H3A 2T8, Canada.
[Bobchenko, B.; Chadeeva, M.; Danilov, M.; Epifantsev, A.; Markin, O.; Mizuk, R.; Novikov, E.; Popov, V.; Rusinov, V.; Tarkovsky, E.] Inst Theoret & Expt Phys, RU-117218 Moscow, Russia.
[Danilov, M.; Mizuk, R.; Besson, D.; Buzhan, P.; Ilyin, A.; Kantserov, V.; Kaplin, V.; Karakash, A.; Popova, E.; Tikhomirov, V.] Moscow Phys Engn Inst, MEPhI, Dept Phys, Moscow 115409, Russia.
[Kiesling, C.; Seidel, K.; Simon, F.; Soldner, C.; Weuste, L.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Amjad, M. S.; Bonis, J.; Callier, S.; di Lorenzo, S. Conforti; Cornebise, P.; Doublet, Ph.; Dulucq, F.; Fleury, J.; Frisson, T.; van der Kolk, N.; Li, H.; Martin-Chassard, G.; Richard, F.; de la Taille, Ch.; Poeschl, R.; Raux, L.; Rouene, J.; Seguin-Moreau, N.] Univ Paris 11, Ctr Sci Orsay, Lab Accelerateur Lineaire, CNRS IN2P3, F-91898 Orsay, France.
[Anduze, M.; Balagura, V.; Boudry, V.; Brient, J. -C.; Cornat, R.; Frotin, M.; Gastaldi, F.; Guliyev, E.; Haddad, Y.; Magniette, F.; Musat, G.; Ruan, M.; Tran, T. H.; Videau, H.] Ecole Polytech, CNRS, LLR, IN2P3, F-91128 Palaiseau, France.
[Bulanek, B.; Zacek, J.] Charles Univ Prague, Inst Nucl & Particle Phys, CZ-18000 Prague 8, Czech Republic.
[Cvach, J.; Gallus, P.; Havranek, M.; Janata, M.; Kvasnicka, J.; Lednicky, D.; Marcisovsky, M.; Polak, I.; Popule, J.; Tomasek, L.; Tomasek, M.; Ruzicka, P.; Sicho, P.; Smolik, J.; Vrba, V.; Zalesak, J.] Acad Sci Czech Republic, Inst Phys, CZ-18221 Prague 8, Czech Republic.
[Belhorma, B.; Ghazlane, H.] Ctr Natl Energie Sci & Tech Nucl, Rabat, Morocco.
[Kotera, K.; Ono, H.; Takeshita, T.; Uozumi, S.] Shinshu Univ, Dept Phys, Nagano 3908621, Japan.
[Jeans, D.] Univ Tokyo, Grad Sch Sci, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan.
[Chang, S.; Khan, A.; Kim, D. H.; Kong, D. J.; Oh, Y. D.] Kyungpook Natl Univ, Dept Phys, Taegu 702701, South Korea.
[Goetze, M.; Sauer, J.; Weber, S.; Zeitnitz, C.] Berg Univ Wuppertal, Fachbereich C Phys, D-42097 Wuppertal, Germany.
[Danilov, M.; Mizuk, R.] Moscow Inst Phys & Technol, Moscow, Russia.
RP Uozumi, S (reprint author), KNU, Taegu, South Korea.
EM satoru@knu.ac.kr; jeans@icepp.s.u-tokyo.ac.jp
RI Smirnov, Petr/N-9652-2015; U-ID, Kyushu/C-5291-2016; Danilov,
Mikhail/C-5380-2014; Mizuk, Roman/B-3751-2014; Calvo Alamillo,
Enrique/L-1203-2014; Cvach, Jaroslav/G-6269-2014; Chadeeva,
Marina/C-8789-2016; van der Kolk, Naomi/M-9423-2016; Tikhomirov,
Vladimir/M-6194-2015
OI Watson, Nigel/0000-0002-8142-4678; Blazey, Gerald/0000-0002-7435-5758;
Bilki, Burak/0000-0001-9515-3306; Jeans, Daniel/0000-0002-5208-7617;
Danilov, Mikhail/0000-0001-9227-5164; Calvo Alamillo,
Enrique/0000-0002-1100-2963; Chadeeva, Marina/0000-0003-1814-1218; van
der Kolk, Naomi/0000-0002-8670-0408; Tikhomirov,
Vladimir/0000-0002-9634-0581
FU Bundesministerium fur Bildung und Forschung, Germany; DEG cluster of
excellence 'Origin and Structure of the Universe' of Germany;
Helmholtz-Nachwuchsgruppen grant [VH-NG-206]; BMBF [05HS6VH1]; JSPS
KAKENHI [17340071, 18GS0202]; Russian Ministry of Education and Science
[8174, 8411, 1366.2012.2, 14.A12.31.0006]; MICINN, Spain; CPAN, Spain;
CRI(MST) of MOST/KOSEF in Korea; World Class University (WCU) project
through the National Research Foundation (NRF) of Korea - Ministry of
Education, Science Technology [R32-2008-000-20001-0]; US Department of
Energy and the US National Science Foundation; Ministry of Education,
Youth and Sports of the Czech Republic [AV0 Z3407391, AV0 Z10100502,
LC527, LA09042]; Grant Agency of the Czech Republic [202/05/0653];
National Sciences and Engineering Research Council of Canada; Science
and Technology Facilities Council, UK
FX We gratefully acknowledge the DESY management for its support and
hospitality, and the DESY accelerator staff for the reliable and
efficient beam operation. We would like to thank the HEP group of the
University of Tsukuba for the loan of drift chambers. This work was
supported by the Bundesministerium fur Bildung und Forschung, Germany;
by the DEG cluster of excellence 'Origin and Structure of the Universe'
of Germany; by the Helmholtz-Nachwuchsgruppen grant VH-NG-206; by the
BMBF, grant no, 05HS6VH1; by JSPS KAKENHI Grant-in-Aid for Scientific
Research numbers 17340071 and 18GS0202; by the Russian Ministry of
Education and Science contracts 8174, 8411, 1366.2012.2, and
14.A12.31.0006; by MICINN and CPAN, Spain; by CRI(MST) of MOST/KOSEF in
Korea; by the World Class University (WCU) project through the National
Research Foundation (NRF) of Korea funded by the Ministry of Education,
Science & Technology (Grant no. R32-2008-000-20001-0); by the US
Department of Energy and the US National Science Foundation; by the
Ministry of Education, Youth and Sports of the Czech Republic under the
projects AV0 Z3407391, AV0 Z10100502, LC527 and LA09042 and by the Grant
Agency of the Czech Republic under the project 202/05/0653; by the
National Sciences and Engineering Research Council of Canada; and by the
Science and Technology Facilities Council, UK.
NR 14
TC 7
Z9 7
U1 1
U2 18
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 278
EP 289
DI 10.1016/j.nima.2014.06.039
PG 12
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200039
ER
PT J
AU Abazov, VM
Abbott, B
Acharya, BS
Adams, M
Adams, T
Agnew, JP
Alexeev, GD
Alkhazov, G
Alton, A
Askew, A
Atkins, S
Augsten, K
Avila, C
Badaud, F
Bagby, L
Baldin, B
Bandurin, DV
Banerjee, S
Barberis, E
Baringer, P
Bartlett, JF
Sassler, U
Bazterra, V
Bean, A
Begalli, M
Bellantoni, L
Beri, SB
Bernardi, G
Bernhard, R
Bertram, I
Besancon, M
Beuselinck, R
Bhat, PC
Bhatia, S
Bhatnagar, V
Blazey, G
Blessing, S
Bloom, K
Boehnlein, A
Boline, D
Boos, EE
Borissov, G
Borysova, M
Brandt, A
Brandt, O
Brock, R
Bross, A
Brown, D
Bu, XB
Buehler, M
Buescher, V
Bunichev, V
Burdin, S
Buszello, CP
Camacho-Perez, E
Casey, BCK
Castilla-Valdez, H
Caughron, S
Chakrabarti, S
Chan, KM
Chandra, A
Chapon, E
Chen, G
Cho, SW
Choi, S
Choudhary, B
Cihangir, S
Claes, D
Clutter, J
Cooke, M
Cooper, WE
Corcoran, M
Couderc, F
Cousinou, MC
Cutts, D
Das, A
Davies, G
de Jong, SJ
De La Cruz-Burelo, E
de Lima, RT
Deliot, F
Demina, R
Denisov, D
Denisov, SP
Desai, S
Deterre, C
DeVaughan, K
Diehl, HT
Diesburg, M
Ding, PF
Dominguez, A
Dubey, A
Dudko, LV
Duperrin, A
Dutt, S
Eads, M
Edmunds, D
Ellison, J
Elvira, VD
Enari, Y
Evans, H
Evdokimov, VN
Feng, L
Ferbel, T
Fiedler, F
Filthaut, F
Fisher, W
Fisk, HE
Fortner, M
Fox, H
Fuess, S
Garbincius, PH
Garcia-Bellido, A
Garcia-Gonzalez, JA
Gavrilov, V
Geng, W
Gerber, CE
Gershtein, Y
Ginther, G
Golovanov, G
Grannis, PD
Greder, S
Greenlee, H
Grenier, G
Gris, P
Grivaz, JF
Grohsjean, A
Grunendahl, S
Grunewald, MW
Guillemin, T
Gutierrez, G
Gutierrez, P
Haley, J
Han, L
Harder, K
Harel, A
Hauptman, JM
Hays, J
Head, T
Hebbeker, T
Hedin, D
Hegab, H
Heinson, AP
Heintz, U
Hensel, C
Heredia-De La Cruz, I
Herner, K
Hesketh, G
Hildreth, MD
Hirosky, R
Hoang, T
Hobbs, JD
Hoeneisen, B
Hogan, J
Hohlfeld, M
Holzbauer, JL
Howley, I
Hubacek, Z
Hynek, V
Iashvili, I
Ilchenko, Y
Illingworth, R
Ito, AS
Jabeen, S
Jaffre, M
Jayasinghe, A
Jeong, MS
Jesik, R
Jiang, P
Johns, K
Johnson, E
Johnson, M
Jonckheere, A
Jonsson, P
Joshi, J
Jung, AW
Juste, A
Kajfasz, E
Karmanov, D
Katsanos, I
Kehoe, R
Kermiche, S
Khalatyan, N
Khanov, A
Kharchilava, A
Kharzheev, YN
Kiselevich, I
Kohli, JM
Kozelov, AV
Kraus, J
Kumar, A
Kupco, A
Kurca, T
Kuzmin, VA
Lammers, S
Lebrun, P
Lee, HS
Lee, SW
Lee, WM
Lei, X
Lellouch, J
Li, D
Li, H
Li, L
Li, QZ
Lim, JK
Lincoln, D
Linnemann, J
Lipaev, VV
Lipton, R
Liu, H
Liu, Y
Lobodenko, A
Lokajicek, M
de Sa, RL
Luna-Garcia, R
Lyon, AL
Maciel, AKA
Madar, R
Magana-Villalba, R
Malik, S
Malyshev, VL
Mansour, J
Martinez-Ortega, J
McCarthy, R
McGivern, CL
Meijer, MM
Melnitchouk, A
Menezes, D
Mercadante, PG
Merkin, M
Meyer, A
Meyer, J
Miconi, F
Mondal, NK
Mulhearn, M
Nagy, E
Narain, M
Nayyar, R
Neal, HA
Negret, JP
Neustroev, P
Nguyen, HT
Nunnemann, T
Orduna, J
Osman, N
Osta, J
Pal, A
Parashar, N
Parihar, V
Park, SK
Partridge, R
Parua, N
Patwa, A
Penning, B
Perfilov, M
Peters, Y
Petridis, K
Petrillo, G
Petroff, P
Pleier, MA
Podstavkov, VM
Popov, AV
Prewitt, M
Price, D
Prokopenko, N
Qian, J
Quadt, A
Quinn, B
Ratoff, PN
Razumov, I
Ripp-Baudot, I
Rizatdinova, F
Rominsky, M
Ross, A
Royon, C
Rubinov, P
Ruchti, R
Sajot, G
Sanchez-Hernandez, A
Sanders, MP
Santos, AS
Savage, G
Sawyer, L
Scanlon, T
Schamberger, RD
Scheglov, Y
Schellman, H
Schwanenberger, C
Schwienhorst, R
Sekaric, J
Severini, H
Shabalina, E
Shary, V
Shaw, S
Shchukin, AA
Simak, V
Skubic, P
Slattery, P
Smirnov, D
Snow, GR
Snow, J
Snyder, S
Soldner-Rembold, S
Sonnenschein, L
Soustruznik, K
Stark, J
Stoyanova, DA
Strauss, M
Suter, L
Svoisky, P
Titov, M
Tokmenin, VV
Tsai, YT
Tsybychev, D
Tuchming, B
Tully, C
Uvarov, L
Uvarov, S
Uzunyan, S
Kooten, R
van Leeuwen, WM
Varelas, N
Varnes, EW
Vasilyev, IA
Verkheev, AY
Vertogradov, LS
Verzocchi, M
Vesterinen, M
Vilanova, D
Vokac, P
Wahl, HD
Wang, MHLS
Warchol, J
Watts, G
Wayne, M
Weichert, J
Welty-Rieger, L
Williams, MRJ
Wilson, GW
Wobisch, M
Wood, DR
Wyatt, TR
Xie, Y
Yamada, R
Yang, S
Yasuda, T
Yatsunenko, YA
Ye, W
Ye, Z
Yin, H
Yip, K
Youn, SW
Yu, JM
Zennamo, J
Zhao, TG
Zhou, B
Zhu, J
Zielinski, M
Zieminska, D
Zivkovic, L
AF Abazov, V. M.
Abbott, B.
Acharya, B. S.
Adams, M.
Adams, T.
Agnew, J. P.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Askew, A.
Atkins, S.
Augsten, K.
Avila, C.
Badaud, F.
Bagby, L.
Baldin, B.
Bandurin, D. V.
Banerjee, S.
Barberis, E.
Baringer, P.
Bartlett, J. F.
Sassler, U.
Bazterra, V.
Bean, A.
Begalli, M.
Bellantoni, L.
Beri, S. B.
Bernardi, G.
Bernhard, R.
Bertram, I.
Besancon, M.
Beuselinck, R.
Bhat, P. C.
Bhatia, S.
Bhatnagar, V.
Blazey, G.
Blessing, S.
Bloom, K.
Boehnlein, A.
Boline, D.
Boos, E. E.
Borissov, G.
Borysova, M.
Brandt, A.
Brandt, O.
Brock, R.
Bross, A.
Brown, D.
Bu, X. B.
Buehler, M.
Buescher, V.
Bunichev, V.
Burdin, S.
Buszello, C. P.
Camacho-Perez, E.
Casey, B. C. K.
Castilla-Valdez, H.
Caughron, S.
Chakrabarti, S.
Chan, K. M.
Chandra, A.
Chapon, E.
Chen, G.
Cho, S. W.
Choi, S.
Choudhary, B.
Cihangir, S.
Claes, D.
Clutter, J.
Cooke, M.
Cooper, W. E.
Corcoran, M.
Couderc, F.
Cousinou, M. -C.
Cutts, D.
Das, A.
Davies, G.
de Jong, S. J.
De La Cruz-Burelo, E.
de Lima, R. T.
Deliot, F.
Demina, R.
Denisov, D.
Denisov, S. P.
Desai, S.
Deterre, C.
DeVaughan, K.
Diehl, H. T.
Diesburg, M.
Ding, P. F.
Dominguez, A.
Dubey, A.
Dudko, L. V.
Duperrin, A.
Dutt, S.
Eads, M.
Edmunds, D.
Ellison, J.
Elvira, V. D.
Enari, Y.
Evans, H.
Evdokimov, V. N.
Feng, L.
Ferbel, T.
Fiedler, F.
Filthaut, F.
Fisher, W.
Fisk, H. E.
Fortner, M.
Fox, H.
Fuess, S.
Garbincius, P. H.
Garcia-Bellido, A.
Garcia-Gonzalez, J. A.
Gavrilov, V.
Geng, W.
Gerber, C. E.
Gershtein, Y.
Ginther, G.
Golovanov, G.
Grannis, P. D.
Greder, S.
Greenlee, H.
Grenier, G.
Gris, Ph.
Grivaz, J. -F.
Grohsjean, A.
Gruenendahl, S.
Gruenewald, M. W.
Guillemin, T.
Gutierrez, G.
Gutierrez, P.
Haley, J.
Han, L.
Harder, K.
Harel, A.
Hauptman, J. M.
Hays, J.
Head, T.
Hebbeker, T.
Hedin, D.
Hegab, H.
Heinson, A. P.
Heintz, U.
Hensel, C.
Heredia-De La Cruz, I.
Herner, K.
Hesketh, G.
Hildreth, M. D.
Hirosky, R.
Hoang, T.
Hobbs, J. D.
Hoeneisen, B.
Hogan, J.
Hohlfeld, M.
Holzbauer, J. L.
Howley, I.
Hubacek, Z.
Hynek, V.
Iashvili, I.
Ilchenko, Y.
Illingworth, R.
Ito, A. S.
Jabeen, S.
Jaffre, M.
Jayasinghe, A.
Jeong, M. S.
Jesik, R.
Jiang, P.
Johns, K.
Johnson, E.
Johnson, M.
Jonckheere, A.
Jonsson, P.
Joshi, J.
Jung, A. W.
Juste, A.
Kajfasz, E.
Karmanov, D.
Katsanos, I.
Kehoe, R.
Kermiche, S.
Khalatyan, N.
Khanov, A.
Kharchilava, A.
Kharzheev, Y. N.
Kiselevich, I.
Kohli, J. M.
Kozelov, A. V.
Kraus, J.
Kumar, A.
Kupco, A.
Kurca, T.
Kuzmin, V. A.
Lammers, S.
Lebrun, P.
Lee, H. S.
Lee, S. W.
Lee, W. M.
Lei, X.
Lellouch, J.
Li, D.
Li, H.
Li, L.
Li, Q. Z.
Lim, J. K.
Lincoln, D.
Linnemann, J.
Lipaev, V. V.
Lipton, R.
Liu, H.
Liu, Y.
Lobodenko, A.
Lokajicek, M.
de Sa, R. Lopes
Luna-Garcia, R.
Lyon, A. L.
Maciel, A. K. A.
Madar, R.
Magana-Villalba, R.
Malik, S.
Malyshev, V. L.
Mansour, J.
Martinez-Ortega, J.
McCarthy, R.
McGivern, C. L.
Meijer, M. M.
Melnitchouk, A.
Menezes, D.
Mercadante, P. G.
Merkin, M.
Meyer, A.
Meyer, J.
Miconi, F.
Mondal, N. K.
Mulhearn, M.
Nagy, E.
Narain, M.
Nayyar, R.
Neal, H. A.
Negret, J. P.
Neustroev, P.
Nguyen, H. T.
Nunnemann, T.
Orduna, J.
Osman, N.
Osta, J.
Pal, A.
Parashar, N.
Parihar, V.
Park, S. K.
Partridge, R.
Parua, N.
Patwa, A.
Penning, B.
Perfilov, M.
Peters, Y.
Petridis, K.
Petrillo, G.
Petroff, P.
Pleier, M. -A.
Podstavkov, V. M.
Popov, A. V.
Prewitt, M.
Price, D.
Prokopenko, N.
Qian, J.
Quadt, A.
Quinn, B.
Ratoff, P. N.
Razumov, I.
Ripp-Baudot, I.
Rizatdinova, F.
Rominsky, M.
Ross, A.
Royon, C.
Rubinov, P.
Ruchti, R.
Sajot, G.
Sanchez-Hernandez, A.
Sanders, M. P.
Santos, A. S.
Savage, G.
Sawyer, L.
Scanlon, T.
Schamberger, R. D.
Scheglov, Y.
Schellman, H.
Schwanenberger, C.
Schwienhorst, R.
Sekaric, J.
Severini, H.
Shabalina, E.
Shary, V.
Shaw, S.
Shchukin, A. A.
Simak, V.
Skubic, P.
Slattery, P.
Smirnov, D.
Snow, G. R.
Snow, J.
Snyder, S.
Soeldner-Rembold, S.
Sonnenschein, L.
Soustruznik, K.
Stark, J.
Stoyanova, D. A.
Strauss, M.
Suter, L.
Svoisky, P.
Titov, M.
Tokmenin, V. V.
Tsai, Y. -T.
Tsybychev, D.
Tuchming, B.
Tully, C.
Uvarov, L.
Uvarov, S.
Uzunyan, S.
Van Kooten, R.
van Leeuwen, W. M.
Varelas, N.
Varnes, E. W.
Vasilyev, I. A.
Verkheev, A. Y.
Vertogradov, L. S.
Verzocchi, M.
Vesterinen, M.
Vilanova, D.
Vokac, P.
Wahl, H. D.
Wang, M. H. L. S.
Warchol, J.
Watts, G.
Wayne, M.
Weichert, J.
Welty-Rieger, L.
Williams, M. R. J.
Wilson, G. W.
Wobisch, M.
Wood, D. R.
Wyatt, T. R.
Xie, Y.
Yamada, R.
Yang, S.
Yasuda, T.
Yatsunenko, Y. A.
Ye, W.
Ye, Z.
Yin, H.
Yip, K.
Youn, S. W.
Yu, J. M.
Zennamo, J.
Zhao, T. G.
Zhou, B.
Zhu, J.
Zielinski, M.
Zieminska, D.
Zivkovic, L.
TI Improved b quark jet identification at the D0 experiment
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE b-Jet identification; D0; Tevatron; Collider
AB The ability to identify jets which originated from b quarks is an important tool of the physics program of the D0 experiment at the Fermilab Tevatron p (p) over bar collider. This paper describes a new algorithm designed to select jets originating from b quarks while suppressing the contamination caused by jets from other quark flavors and gluons. Additionally, a new technique, the SystemN method, for determining the misidentification rate directly from data is presented. (C) 2014 Elsevier B.V. All rights reserved.
C1 [de Lima, R. T.; Hensel, C.; Maciel, A. K. A.; Santos, A. S.] LAFEX, Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.
[Begalli, M.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil.
[Mercadante, P. G.] Univ Fed ABC, Santo Andre, Brazil.
[Han, L.; Liu, Y.; Yang, S.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Avila, C.; Negret, J. P.] Univ Los Andes, Bogota, Colombia.
[Soustruznik, K.] Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague, Czech Republic.
[Augsten, K.; Hynek, V.; Simak, V.; Vokac, P.] Czech Tech Univ, Prague, Czech Republic.
[Kupco, A.; Lokajicek, M.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
[Hoeneisen, B.] Univ San Francisco Quito, Quito, Ecuador.
[Badaud, F.; Gris, Ph.] Univ Clermont Ferrand, LPC, CNRS IN2P3, Clermont, France.
[Sajot, G.; Stark, J.] Univ Grenoble 1, LPSC, Inst Natl Polytech Grenoble, CNRS IN2P3, Grenoble, France.
[Cousinou, M. -C.; Duperrin, A.; Geng, W.; Kajfasz, E.; Kermiche, S.; Nagy, E.; Osman, N.] Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France.
[Grivaz, J. -F.; Guillemin, T.; Jaffre, M.; Petroff, P.] Univ Paris 11, LAL, CNRS IN2P3, Orsay, France.
[Bernardi, G.; Brown, D.; Enari, Y.; Lellouch, J.; Li, D.; Zivkovic, L.] Univ Paris 06, LPNHE, CNRS IN2P3, Paris, France.
[Bernardi, G.; Brown, D.; Enari, Y.; Lellouch, J.; Li, D.; Zivkovic, L.] Univ Paris 07, LPNHE, CNRS IN2P3, Paris, France.
[Sassler, U.; Besancon, M.; Chapon, E.; Couderc, F.; Deliot, F.; Grohsjean, A.; Royon, C.; Shary, V.; Titov, M.; Tuchming, B.; Vilanova, D.] CEA, Irfu, SPP, Saclay, France.
[Greder, S.; Miconi, F.; Ripp-Baudot, I.] Univ Strasbourg, CNRS IN2P3, IPHC, Strasbourg, France.
[Kurca, T.; Lebrun, P.] Univ Lyon 1, CNRS IN2P3, IPNL, F-69622 Villeurbanne, France.
[Kurca, T.; Lebrun, P.] Univ Lyon, Lyon, France.
[Hebbeker, T.; Meyer, A.; Sonnenschein, L.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany.
[Bernhard, R.; Madar, R.] Univ Freiburg, Inst Phys, D-79106 Freiburg, Germany.
[Brandt, O.; Deterre, C.; Mansour, J.; Meyer, J.; Shabalina, E.] Univ Gottingen, Inst Phys 2, D-37073 Gottingen, Germany.
[Buescher, V.; Fiedler, F.; Hohlfeld, M.; Weichert, J.] Johannes Gutenberg Univ Mainz, Inst Phys, D-55122 Mainz, Germany.
[Nunnemann, T.; Sanders, M. P.] Univ Munich, Munich, Germany.
[Beri, S. B.; Bhatnagar, V.; Dutt, S.; Kohli, J. M.] Panjab Univ, Chandigarh 160014, India.
[Choudhary, B.; Dubey, A.] Univ Delhi, Delhi 110007, India.
[Acharya, B. S.; Banerjee, S.; Mondal, N. K.] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India.
[Gruenewald, M. W.] Univ Coll Dublin, Dublin 2, Ireland.
[Cho, S. W.; Choi, S.; Jeong, M. S.; Lee, H. S.; Lim, J. K.; Park, S. K.] Korea Univ, Korea Detector Lab, Seoul, South Korea.
[Camacho-Perez, E.; Castilla-Valdez, H.; De La Cruz-Burelo, E.; Garcia-Gonzalez, J. A.; Heredia-De La Cruz, I.; Luna-Garcia, R.; Magana-Villalba, R.; Martinez-Ortega, J.; Sanchez-Hernandez, A.] CINVESTAV, Mexico City 14000, DF, Mexico.
[de Jong, S. J.; Filthaut, F.; Jiang, P.; Meijer, M. M.; van Leeuwen, W. M.] Nikhef, Sci Pk, Amsterdam, Netherlands.
[de Jong, S. J.; Filthaut, F.; Meijer, M. M.] Radboud Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands.
[Abazov, V. M.; Alexeev, G. D.; Golovanov, G.; Kharzheev, Y. N.; Malyshev, V. L.; Tokmenin, V. V.; Verkheev, A. Y.; Vertogradov, L. S.; Yatsunenko, Y. A.] Joint Inst Nucl Res, Dubna, Russia.
[Gavrilov, V.; Kiselevich, I.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Boos, E. E.; Bunichev, V.; Dudko, L. V.; Karmanov, D.; Kuzmin, V. A.; Merkin, M.; Perfilov, M.] Moscow MV Lomonosov State Univ, Moscow, Russia.
[Denisov, S. P.; Evdokimov, V. N.; Kozelov, A. V.; Lipaev, V. V.; Popov, A. V.; Prokopenko, N.; Razumov, I.; Shchukin, A. A.; Stoyanova, D. A.; Vasilyev, I. A.] Inst High Energy Phys, Protvino, Russia.
[Alkhazov, G.; Lobodenko, A.; Neustroev, P.; Scheglov, Y.; Uvarov, L.; Uvarov, S.] Petersburg Nucl Phys Inst, St Petersburg, Russia.
[Juste, A.] ICREA, Barcelona, Spain.
[Juste, A.] IFAE, Barcelona, Spain.
[Buszello, C. P.] Uppsala Univ, Uppsala, Sweden.
[Borysova, M.] Taras Shevchenko Natl Univ Kyiv, Kiev, Ukraine.
[Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Ratoff, P. N.; Ross, A.] Univ Lancaster, Lancaster LA1 4YB, England.
[Beuselinck, R.; Davies, G.; Hays, J.; Jesik, R.; Jonsson, P.; Scanlon, T.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England.
[Agnew, J. P.; Ding, P. F.; Harder, K.; Head, T.; Hesketh, G.; McGivern, C. L.; Peters, Y.; Petridis, K.; Price, D.; Schwanenberger, C.; Soeldner-Rembold, S.; Suter, L.; Vesterinen, M.; Wyatt, T. R.; Zhao, T. G.] Univ Manchester, Manchester M13 9PL, Lancs, England.
[Das, A.; Johns, K.; Lei, X.; Nayyar, R.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA.
[Ellison, J.; Heinson, A. P.; Joshi, J.; Li, L.] Univ Calif Riverside, Riverside, CA 92521 USA.
[Adams, T.; Askew, A.; Blessing, S.; Hoang, T.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA.
[Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Bu, X. B.; Buehler, M.; Casey, B. C. K.; Cihangir, S.; Cooke, M.; Cooper, W. E.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Fisk, H. E.; Fuess, S.; Garbincius, P. H.; Ginther, G.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Herner, K.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Jung, A. W.; Khalatyan, N.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Melnitchouk, A.; Penning, B.; Podstavkov, V. M.; Quadt, A.; Rominsky, M.; Rubinov, P.; Savage, G.; Verzocchi, M.; Wang, M. H. L. S.; Xie, Y.; Yamada, R.; Yasuda, T.; Ye, Z.; Yin, H.; Youn, S. W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Adams, M.; Bazterra, V.; Gerber, C. E.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA.
[Blazey, G.; Eads, M.; Feng, L.; Fortner, M.; Hedin, D.; Menezes, D.; Uzunyan, S.] No Illinois Univ, De Kalb, IL 60115 USA.
[Schellman, H.; Welty-Rieger, L.] Northwestern Univ, Evanston, IL 60208 USA.
[Evans, H.; Lammers, S.; Parua, N.; Van Kooten, R.; Williams, M. R. J.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA.
[Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA.
[Chan, K. M.; Hildreth, M. D.; Osta, J.; Ruchti, R.; Smirnov, D.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Hauptman, J. M.; Lee, S. W.] Iowa State Univ, Ames, IA 50011 USA.
[Baringer, P.; Bean, A.; Chen, G.; Clutter, J.; Sekaric, J.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA.
[Atkins, S.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA.
[Barberis, E.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA.
[Alton, A.; Neal, H. A.; Qian, J.; Yu, J. M.; Zhou, B.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Brock, R.; Caughron, S.; Edmunds, D.; Fisher, W.; Johnson, E.; Linnemann, J.; Schwienhorst, R.; Shaw, S.] Michigan State Univ, E Lansing, MI 48824 USA.
[Bhatia, S.; Holzbauer, J. L.; Kraus, J.; Quinn, B.] Univ Mississippi, University, MS 38677 USA.
[Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA.
[Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA.
[Tully, C.] Princeton Univ, Princeton, NJ 08544 USA.
[Iashvili, I.; Kharchilava, A.; Kumar, A.; Zennamo, J.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, P.; Tsai, Y. -T.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Boline, D.; Chakrabarti, S.; Grannis, P. D.; Hobbs, J. D.; de Sa, R. Lopes; McCarthy, R.; Schamberger, R. D.; Tsybychev, D.; Ye, W.] SUNY Stony Brook, Stony Brook, NY 11794 USA.
[Patwa, A.; Pleier, M. -A.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Snow, J.] Langston Univ, Langston, OK 73050 USA.
[Abbott, B.; Gutierrez, P.; Jayasinghe, A.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P.] Univ Oklahoma, Norman, OK 73019 USA.
[Haley, J.; Hegab, H.; Khanov, A.; Parihar, V.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA.
[Cutts, D.; Heintz, U.; Jabeen, S.; Narain, M.; Partridge, R.] Brown Univ, Providence, RI 02912 USA.
[Brandt, A.; Howley, I.; Pal, A.] Univ Texas Arlington, Arlington, TX 76019 USA.
[Ilchenko, Y.; Kehoe, R.; Liu, H.] So Methodist Univ, Dallas, TX 75275 USA.
[Chandra, A.; Corcoran, M.; Hogan, J.; Orduna, J.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA.
[Bandurin, D. V.; Hirosky, R.; Li, H.; Mulhearn, M.; Nguyen, H. T.] Univ Virginia, Charlottesville, VA 22904 USA.
[Watts, G.] Univ Washington, Seattle, WA 98195 USA.
RP Abazov, VM (reprint author), LAFEX, Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.
RI Lei, Xiaowen/O-4348-2014; Yip, Kin/D-6860-2013; Gutierrez,
Phillip/C-1161-2011; Sharyy, Viatcheslav/F-9057-2014; Dudko,
Lev/D-7127-2012; Merkin, Mikhail/D-6809-2012; Li, Liang/O-1107-2015;
Juste, Aurelio/I-2531-2015;
OI Lei, Xiaowen/0000-0002-2564-8351; Hedin, David/0000-0001-9984-215X; de
Jong, Sijbrand/0000-0002-3120-3367; Blessing, Susan/0000-0002-4455-7279;
Duperrin, Arnaud/0000-0002-5789-9825; Hoeneisen,
Bruce/0000-0002-6059-4256; Yip, Kin/0000-0002-8576-4311; Sharyy,
Viatcheslav/0000-0002-7161-2616; Dudko, Lev/0000-0002-4462-3192; Li,
Liang/0000-0001-6411-6107; Beuselinck, Raymond/0000-0003-2613-7446;
Heinson, Ann/0000-0003-4209-6146; grannis, paul/0000-0003-4692-2142;
Blazey, Gerald/0000-0002-7435-5758; Wahl, Horst/0000-0002-1345-0401;
Bean, Alice/0000-0001-5967-8674; Sawyer, Lee/0000-0001-8295-0605; Juste,
Aurelio/0000-0002-1558-3291; Gershtein, Yuri/0000-0002-4871-5449; Malik,
Sudhir/0000-0002-6356-2655; Qian, Jianming/0000-0003-4813-8167;
Williams, Mark/0000-0001-5448-4213; Grohsjean,
Alexander/0000-0003-0748-8494; Chapon, Emilien/0000-0001-6968-9828;
Melnychuk, Oleksandr/0000-0002-2089-8685; Ding,
Pengfei/0000-0002-4050-1753; Bassler, Ursula/0000-0002-9041-3057; Price,
Darren/0000-0003-2750-9977; Filthaut, Frank/0000-0003-3338-2247;
Bertram, Iain/0000-0003-4073-4941
FU DOE (USA); NSF (USA); CEA (France); CNRS/IN2P3 (France); MON (Russia);
NRC KI (Russia); RFBR (Russia); CNPq (Brazil); FAPERJ (Brazil); FAPESP
(Brazil); FUNDUNESP (Brazil); DAE (India); DST (India); Colciencias
(Colombia); CONACyT (Mexico); NRF (Korea); FOM (The Netherlands); STFC
(United Kingdom); Royal Society (United Kingdom); MSMT (Czech Republic);
GACR (Czech Republic); BMBF (Germany); DFG (Germany); SFI (Ireland);
Swedish Research Council (Sweden); CAS (China); CNSF (China)
FX We thank the staffs at Fermilab and collaborating institutions, and
acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3
(France); MON, NRC KI and RFBR (Russia); CNPq, FAPERJ, FAPESP and
FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT
(Mexico); NRF (Korea); FOM (The Netherlands); STFC and the Royal Society
(United Kingdom); MSMT and GACR (Czech Republic); BMBF and DFG
(Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS
and CNSF (China).
NR 14
TC 15
Z9 15
U1 0
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 290
EP 303
DI 10.1016/j.nima.2014.04.087
PG 14
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200040
ER
PT J
AU Krzywda, A
Alagoz, E
Bubna, M
Obertino, M
Solano, A
Arndt, K
Uplegger, L
Betta, GFD
Boscardin, M
Ngadiuba, J
Rivera, R
Menasce, D
Moroni, L
Terzo, S
Bortoletto, D
Prosser, A
Adreson, J
Kwan, S
Osipenkov, I
Bolla, G
Lei, CM
Shipsey, I
Tan, P
Tran, N
Chramowicz, J
Cumalat, J
Perera, L
Povoli, M
Mendicino, R
Pereira, AV
Brosius, R
Kumar, A
Wagner, S
Jensen, F
Bose, S
Tentindo, S
AF Krzywda, A.
Alagoz, E.
Bubna, M.
Obertino, M.
Solano, A.
Arndt, K.
Uplegger, L.
Betta, G. F. Dalla
Boscardin, M.
Ngadiuba, J.
Rivera, R.
Menasce, D.
Moroni, L.
Terzo, S.
Bortoletto, D.
Prosser, A.
Adreson, J.
Kwan, S.
Osipenkov, I.
Bolla, G.
Lei, C. M.
Shipsey, I.
Tan, P.
Tran, N.
Chramowicz, J.
Cumalat, J.
Perera, L.
Povoli, M.
Mendicino, R.
Pereira, A. Vilela
Brosius, R.
Kumar, A.
Wagner, S.
Jensen, F.
Bose, S.
Tentindo, S.
TI Pre- and post-irradiation performance of FBK 3D silicon pixel detectors
for CMS
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE 3D; CMS; Pixel detector; HL-LHC; Radiation-hard
ID FABRICATION; UPGRADE; DESIGN; LHC
AB In preparation for the tenfold luminosity upgrade of the Large Hadron Collider (the HL-LHC) around 2020, three-dimensional (3D) silicon pixel sensors are being developed as a radiation-hard candidate to replace the planar ones currently being used in the CMS pixel detector. This study examines an early batch of FBK sensors (named ATLAS08) of three 3D pixel geometries: 1E, 2E, and 4E, which respectively contain one, two, and four readout electrodes for each pixel, passing completely through the bulk. We present electrical characteristics and beam test performance results for each detector before and after irradiation. The maximum fluence applied is 3.5 x 10(15) n (eq)/cm(2). (C) 2014 Elsevier B.V. All rights reserved.
C1 [Krzywda, A.; Alagoz, E.; Bubna, M.; Arndt, K.; Bortoletto, D.; Bolla, G.; Shipsey, I.; Brosius, R.] Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA.
[Obertino, M.] Univ Piemonte Orientate, Novara, Italy.
[Solano, A.] Univ Turin, Turin, Italy.
[Obertino, M.] INFN, Sez Torino, Turin, Italy.
[Uplegger, L.; Rivera, R.; Prosser, A.; Adreson, J.; Kwan, S.; Lei, C. M.; Tan, P.; Tran, N.; Chramowicz, J.; Kumar, A.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Boscardin, M.] Ctr Mat, I-38123 Povo, TN, Italy.
[Boscardin, M.] I Microsist Fdn Bruno Kessler FBK, I-38123 Povo, TN, Italy.
[Betta, G. F. Dalla; Povoli, M.; Mendicino, R.] Trent Univ, TIFPA INEN, I-38123 Povo, TN, Italy.
[Betta, G. F. Dalla; Povoli, M.; Mendicino, R.] Trent Univ, Dipartimento Ingn Ind, I-38123 Povo, TN, Italy.
[Ngadiuba, J.; Menasce, D.; Moroni, L.; Terzo, S.] Univ Milano Bicocca, Milan, Italy.
[Cumalat, J.; Wagner, S.; Jensen, F.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Osipenkov, I.] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA.
[Pereira, A. Vilela] Univ Estado Rio de Janeiro, Inst Fis, BR-20550013 Rio De Janeiro, Brazil.
[Perera, L.] Univ Mississippi, Dept Phys & Astron, University, MS 38677 USA.
[Bose, S.] Univ Nebraska, Lincoln, NE 68508 USA.
[Tentindo, S.] Florida State Univ, Tallahassee, FL 32306 USA.
RP Krzywda, A (reprint author), Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA.
EM akrzywda@purdue.edu
RI Dalla Betta, Gian-Franco/I-1783-2012; Menasce, Dario Livio/A-2168-2016;
OI Terzo, Stefano/0000-0003-3388-3906; Dalla Betta,
Gian-Franco/0000-0001-5516-9282; Menasce, Dario
Livio/0000-0002-9918-1686; Arndt, Kirk/0000-0002-6826-8340
FU U.S. Department of Energy [DE-FG02-91ER40681]; National Science
foundation [PHY 0612805 UCLA Subaward 1000 G HD 870]; Provincia Autonoma
di Trento through the Project MEMS2; Italian National Institute for
Nuclear Physics (INFN) through the CSN5 Project TREDI
FX This work was funded by the U.S. Department of Energy under Grant
DE-FG02-91ER40681, the National Science foundation under Cooperative
Agreement PHY 0612805 UCLA Subaward 1000 G HD 870, the Provincia
Autonoma di Trento through the Project MEMS2, and also by the Italian
National Institute for Nuclear Physics (INFN) through the CSN5 Project
TREDI, The PSI46v2 ROCs were developed by R. Horisberger's research
group (W. Erdmann, R. Horisberger, H.C. Kastli, and B. Meier) at the
Paul Scherrer Institute in Switzerland.
NR 25
TC 1
Z9 1
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 404
EP 411
DI 10.1016/j.nima.2014.06.029
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200055
ER
PT J
AU Abazov, VM
Abbott, B
Acharya, BS
Adams, M
Adams, T
Agnew, JP
Alexeev, GD
Alkhazov, G
Alton, A
Askew, A
Atkins, S
Augsten, K
Avila, C
Badaud, F
Bagby, L
Baldin, B
Bandurin, DV
Banerjee, S
Baringer, P
Bartlett, JF
Bassler, U
Bazterra, V
Bean, A
Begalli, M
Bellantoni, L
Beri, SB
Bernardi, G
Bernhard, R
Bertram, I
Besancon, M
Beuselinck, R
Bhat, PC
Bhatia, S
Bhatnagar, V
Blazey, G
Blessing, S
Bloom, K
Boehnlein, A
Boline, D
Boos, EE
Borissov, G
Borysova, M
Brandt, A
Brandt, .
Brock, R
Bross, A
Brown, D
Bu, XB
Buehler, M
Buescher, V
Bunichev, V
Burdin, S
Buszello, CP
Camacho-Perez, E
Casey, BCK
Castilla-Valdez, H
Caughron, S
Chakrabarti, S
Chan, KM
Chandra, A
Chapon, E
Chen, G
Cho, SW
Choi, S
Choudhary, B
Cihangir, S
Claes, D
Clutter, J
Cooke, M
Cooper, WE
Corcoran, M
Couderc, F
Cousinou, MC
Cutts, D
Das, A
Davies, G
de Jong, SJ
De la Cruz-Burelo, E
Deliot, F
Demina, R
Denisov, D
Denisov, SP
Desai, S
Deterre, C
DeVaughan, K
Diehl, HT
Diesburg, M
Dine, PF
Dominguez, A
Dubey, A
Dudko, LV
Duperrin, A
Dutt, S
Eads, M
Edmunds, D
Ellison, J
Elvira, VD
Enari, Y
Evans, H
Evdokimov, VN
Feng, L
Ferbel, T
Fiedler, F
Filthaut, F
Fisher, W
Fisk, HE
Fortner, M
Fox, H
Fuess, S
Garbincius, PH
Garcia-Bellido, A
Garcia-Gonzalez, JA
Gavrilov, V
Geng, W
Gerber, CE
Gershtein, Y
Ginther, G
Golovanov, G
Grannis, PD
Greder, S
Greenlee, H
Grenier, G
Gris, P
Grivaz, JF
Grohsjean, A
Grunendahl, S
Grunewald, MW
Guillemin, T
Gutierrez, G
Gutierrez, P
Haley, J
Han, L
Harder, K
Harel, A
Hauptman, JM
Hays, J
Head, T
Hebbeker, T
Hedin, D
Hegab, H
Heinson, AP
Heintz, U
Hensel, C
Heredia-De La Cruz, I
Herner, K
Hesketh, G
Hildreth, MD
Hirosky, R
Hoang, T
Hobbs, JD
Hoeneisen, B
Hogan, J
Hohlfeld, M
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de Sa, RL
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McCarthy, R
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Menezes, D
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Merkin, M
Meyers, A
Meyer, J
Miconi, F
Mondal, NK
Mulhearn, M
Nagy, E
Narain, M
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Pal, A
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Parihar, V
Park, SK
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Parua, N
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Peters, Y
Petridis, K
Petrillo, G
Petroff, P
Pleier, MA
Podstavkov, VM
Popov, V
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Price, D
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Ochando, C
Qian, J
Quadt, A
Quinn, B
Raja, R
Ratoff, PN
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Ripp-Baudot, I
Rizatdinova, F
Rominsky, N
Ross, A
Royon, C
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Ruchti, R
Sajot, G
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Santos, AS
Savage, G
Sawyer, L
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Schamberger, RD
Scheglov, Y
Schellman, H
Schwanenberger, C
Schwienhorst, R
Sekaric, J
Severini, H
Shabalina, E
Shary, V
Shaw, S
Shchukin, AA
Simak, V
Skubic, P
Slattery, P
Smirnov, D
Snow, GR
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Snyder, S
Soldner-Rembold, S
Sonnenschein, L
Soustruznik, K
Stark, J
Stoyanova, DA
Strauss, M
Suter, L
Svoisky, P
Titov, M
Tokmenin, VV
Tsai, YT
Tsybychev, D
Tuchming, B
Tully, C
Uvarov, L
Uvarov, S
Uzunyan, S
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van Leeuwen, WM
Varelas, N
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Bertram, I.
Besancon, M.
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Bhat, P. C.
Bhatia, S.
Bhatnagar, V.
Blazey, G.
Blessing, S.
Bloom, K.
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Boline, D.
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Heredia-De La Cruz, I.
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Hesketh, G.
Hildreth, M. D.
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Hobbs, J. D.
Hoeneisen, B.
Hogan, J.
Hohlfeld, M.
Holzbauer, J. L.
Howley, I.
Hubacek, Z.
Hynek, V.
Lashvili, I.
Ilchenko, Y.
Illingworth, R.
Ito, A. S.
Jabeen, S.
Jaffre, M.
Jayasinghe, A.
Jeong, M. S.
Jesik, R.
Jiang, P.
Johns, K.
Johnson, E.
Johnson, M.
Jonckheere, A.
Jonsson, P.
Joshi, J.
Jung, A. W.
Juste, A.
Kajfasz, E.
Karmanov, D.
Katsanos, I.
Kehoe, R.
Kermiche, S.
Khalatyan, N.
Khanov, A.
Kharchilava, A.
Kharzheev, Y. N.
Kiselevich, I.
Kohli, J. M.
Kozelov, A. V.
Kraus, J.
Kumar, A.
Kupco, A.
Kucra, T.
Kuzmin, V. A.
Lammers, S.
Lebrun, P.
Lee, H. S.
Lee, S. W.
Lee, W. M.
Lei, X.
Lellouch, J.
Li, D.
Li, H.
Li, L.
Li, Q. Z.
Lim, J. K.
Lincoln, D.
Linnemann, J.
Lipaev, V. V.
Lipton, R.
Liu, H.
Liu, Y.
Lobodenko, A.
Lokajicek, M.
de Sa, R. Lopes
Luna-Garcia, R.
Lyon, A. L.
Maciel, A. K. A.
Madar, R.
Magana-Villalba, R.
Makovec, N.
Malik, S.
Malyshev, V. L.
Mansour, J.
Martinez-Ortega, J.
McCarthy, R.
McGivern, C. L.
Meijer, M. M.
Melnitchouk, A.
Menezes, D.
Mercadante, G.
Merkin, M.
Meyers, A.
Meyer, J.
Miconi, F.
Mondal, N. K.
Mulhearn, M.
Nagy, E.
Narain, M.
Nayyar, R.
Neal, H. A.
Negret, J. P.
Neustroev, P.
Nguyen, H. T.
Nunnemann, T.
Orduna, J.
Osman, N.
Osta, J.
Pal, A.
Parashar, N.
Parihar, V.
Park, S. K.
Partridge, R.
Parua, N.
Patwa, A.
Penning, B.
Perfilov, Ni.
Peters, Y.
Petridis, K.
Petrillo, G.
Petroff, P.
Pleier, M. -A.
Podstavkov, V. M.
Popov, V.
Prewitt, Ni.
Price, D.
Prokopenko, N.
Ochando, C.
Qian, J.
Quadt, A.
Quinn, B.
Raja, R.
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Razumov, I.
Ripp-Baudot, I.
Rizatdinova, F.
Rominsky, Ni.
Ross, A.
Royon, C.
Rubinov, P.
Ruchti, R.
Sajot, G.
Sanchez-Hernandez, A.
Sanders, M. P.
Santos, A. S.
Savage, G.
Sawyer, L.
Scanlon, T.
Schamberger, R. D.
Scheglov, Y.
Schellman, H.
Schwanenberger, C.
Schwienhorst, R.
Sekaric, J.
Severini, H.
Shabalina, E.
Shary, V.
Shaw, S.
Shchukin, A. A.
Simak, V.
Skubic, P.
Slattery, P.
Smirnov, D.
Snow, G. R.
Snow, J.
Snyder, S.
Soeldner-Rembold, S.
Sonnenschein, L.
Soustruznik, K.
Stark, J.
Stoyanova, D. A.
Strauss, M.
Suter, L.
Svoisky, P.
Titov, M.
Tokmenin, V. V.
Tsai, Y. -T.
Tsybychev, D.
Tuchming, B.
Tully, C.
Uvarov, L.
Uvarov, S.
Uzunyan, S.
Van Kooten, R.
van Leeuwen, W. M.
Varelas, N.
Varnes, E. W.
Vasilyev, I. A.
Verkheev, A. Y.
Vertogradov, L. S.
Verzocchi, M.
Vesterinen, M.
Vilanova, D.
Vokac, P.
Wahl, H. D.
Wang, M. H. L. S.
Warchol, J.
Watts, G.
Wayne, M.
Weichert, J.
Welty-Rieger, L.
Williams, M. R. J.
Wilson, W.
Wobisch, Ni.
Wood, D. R.
Wyatt, T. R.
Xie, Y.
Yamada, R.
Yang, S.
Yasuda, T.
Yatsunenko, Y. A.
Ye, W.
Ye, Z.
Yin, H.
Yip, K.
Youn, S. W.
Yu, J. M.
Zennamo, J.
Zhao, T. G.
Zhou, B.
Zhu, J.
Zielinski, M.
Zieminska, D.
Zivkovic, L.
TI Jet energy scale determination in the DO experiment
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Fermilab; DZero; DO; Tevatron Run II; Jet energy scale; Jet energy
calibration
ID P(P)OVER-BAR COLLISIONS; D0 DETECTOR; IDENTIFICATION; TEV
AB The calibration of jet energy measured in the DO detector is presented, based on p (p) over bar collisions at a center-of-mass energy of 1.96 TeV at the Fermilab Tevatron collider, jet energies are measured using a sampling calorimeter composed of uranium and liquid argon as the passive and active media, respectively. This paper describes the energy calibration of jets performed with gamma+jet, Z+jet and dilet events, with jet transverse momentum p(T) > 6 GeV and pseudorapidity range vertical bar eta vertical bar < 3.6, The corrections are measured separately for data and simulation, achieving a precision of 1.4-1.8% for jets in the central part of the calorimeter ancl up to 3.5% for the jets with pseudorapidity vertical bar eta vertical bar = 3.0. Specific corrections are extracted to enhance the description of jet energy in simulation and in particular of the effects due to the flavor of the parton originating the jet, correcting biases up to 3-4% in jets with low PT originating from gluons and up to 6-8% in jets from b quarks. Published by Elsevier B.V.
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[Bandurin, D. V.; Hirosky, R.; Li, H.; Mulhearn, M.; Nguyen, H. T.] Univ Virginia, Charlottesville, VA 22904 USA.
[Watts, G.] Univ Washington, Seattle, WA 98195 USA.
RP Bandurin, DV (reprint author), Univ Virginia, Charlottesville, VA 22904 USA.
EM bandurn@fnal.gov
RI Lei, Xiaowen/O-4348-2014; Gutierrez, Phillip/C-1161-2011; Sharyy,
Viatcheslav/F-9057-2014; Dudko, Lev/D-7127-2012; Merkin,
Mikhail/D-6809-2012; Li, Liang/O-1107-2015;
OI Lei, Xiaowen/0000-0002-2564-8351; Sharyy,
Viatcheslav/0000-0002-7161-2616; Dudko, Lev/0000-0002-4462-3192; Li,
Liang/0000-0001-6411-6107; Williams, Mark/0000-0001-5448-4213; Bassler,
Ursula/0000-0002-9041-3057; Grohsjean, Alexander/0000-0003-0748-8494;
Chapon, Emilien/0000-0001-6968-9828; Melnychuk,
Oleksandr/0000-0002-2089-8685; Ding, Pengfei/0000-0002-4050-1753; Price,
Darren/0000-0003-2750-9977; Filthaut, Frank/0000-0003-3338-2247;
Bertram, Iain/0000-0003-4073-4941
FU DOE (USA); NSF (USA); CEA (France); CNRS/IN2P3 (France); MON (Russia);
NRC KI (Russia); RFBR (Russia); CNPq (Brazil); FAPERJ (Brazil); FAPESP
(Brazil); FUNDUNESP (Brazil); DAE (India); DST (India); Colciencias
(Colombia); CONACyT (Mexico); NRF (Korea); FOM (The Netherlands); STFC
(United Kingdom); Royal Society (United Kingdom); MSMT (Czech Republic);
GACR (Czech Republic); BMBF (Germany); DFG (Germany); SFI (Ireland);
Swedish Research Council (Sweden); CAS (China); CNSF (China)
FX We thank the staffs at Fermilab and collaborating institutions, and
acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3
(France); MON, NRC KI and RFBR (Russia); CNPq, FAPERJ, FAPESP and
FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT
(Mexico); NRF (Korea); FOM (The Netherlands); STFC and the Royal Society
(United Kingdom); MSMT and GACR (Czech Republic); BMBF and DFG
(Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS
and CNSF (China).
NR 43
TC 14
Z9 14
U1 3
U2 20
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 442
EP 475
DI 10.1016/j.nima.2014.05.044
PG 34
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200060
ER
PT J
AU Laubach, MA
Hayward, JP
Zhang, X
Cates, JW
AF Laubach, M. A.
Hayward, J. P.
Zhang, X.
Cates, J. W.
TI Timing and position response of a block detector for fast neutron
time-of-flight imaging
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Neutron detectors; Time resolution; Scintillators; Neutron imaging
ID PARTICLE DETECTOR; IDENTIFICATION; SIMULATION; SYSTEM
AB Our research effort seeks to improve the spatial and timing performance of a block detector made of a pixilated plastic scintillator (EJ-200), first demonstrated as part of Oak Ridge National Laboratory's Advanced Portable Neutron Imaging System. Improvement of the position and time response is necessary to achieve better resolution and contrast in the images of shielded special nuclear material. Time-of-flight is used to differentiate between gamma and different sources of neutrons (e.g., transmission and fission neutrons). Factors limiting the timing and position performance of the neutron detector have been revealed through simulations and measurements. Simulations have suggested that the degradation in the ability to resolve pixels in the neutron detector is due to those interactions occurring near the light guide. The energy deposition within the neutron detector is shown to affect position performance and imaging efficiency. This examination details how energy cuts improve the position performance and degrade the imaging efficiency. Measurements have shown the neutron detector to have a timing resolution of sigma=238 ps. The majority of this timing uncertainty is from the depth-of-interaction (DOI) of the neutron which is confirmed by simulations and analytical calculations. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Laubach, M. A.; Hayward, J. P.; Zhang, X.; Cates, J. W.] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA.
[Hayward, J. P.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Laubach, MA (reprint author), Univ Tennessee, Dept Nucl Engn, 207 Pasqua Engn Bldg, Knoxville, TN 37996 USA.
EM mlaubach@utk.edu; jhayward@utk.edu; xzhang39@utk.edu;
jcates7@vols.utk.edu
NR 22
TC 1
Z9 1
U1 0
U2 11
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 495
EP 501
DI 10.1016/j.nima.2014.06.052
PG 7
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200063
ER
PT J
AU Cooper, K
Sumithrarachchi, CS
Morrissey, DJ
Levand, A
Rodriguez, JA
Savard, G
Schwarz, S
Zabransky, B
AF Cooper, K. C
Sumithrarachchi, C. S.
Morrissey, D. J.
Levand, A.
Rodriguez, J. A.
Savard, G.
Schwarz, S.
Zabransky, B.
TI Extraction of thermalized projectile fragments from a large volume gas
cell
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Projectile fragments; Thermalization; Gas cell; Radioactive ions
ID ION GUIDE; BEAMS; CATCHER; MEV/U
AB Experiments to determine the stopping and extraction efficiency of energetic (90 MeV/u)C-76,a fragments in a 1.2 m long gas cell filled with helium at 123 mbar are reported. The thermalized ions were transported by DC and RF fields as well as gas flow, then jetted through a supersonic nozzle into a RF quadrupole ion guide and accelerated into an electrostatic beam line. The ions were collected in either a Faraday cup or a silicon beta detector immediately after acceleration or after magnetic analysis. The range distributions of the ions and extraction efficiency of the system were measured for different implantation rates and compared with the theoretically calculated values. The singly charged 7GGa ions were observed as [Ga-76(H2O)(n)](+) molecular ions with n=0, 1, and 2. The stopping efficiency and the extraction efficiency were obtained from the measured distributions and compared to previous results from other devices. Ks. (C) 2014 Elsevier By. All rights reserved,
C1 [Cooper, K. C; Sumithrarachchi, C. S.; Morrissey, D. J.; Rodriguez, J. A.; Schwarz, S.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
[Cooper, K. C; Morrissey, D. J.] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA.
[Levand, A.; Savard, G.; Zabransky, B.] Argonne Natl Lab, Div Phys, Lemont, IL 60439 USA.
RP Cooper, K (reprint author), Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
EM cooperk@nscl.msu.edu
FU Michigan State University; National Science Foundation [PHY-11-02511];
U.S. Department of Energy [DE-AC02-06CH11357]
FX We thank Scott Williams for his contributions to the data acquisition
system. We also wish to acknowledge the support of Michigan State
University, the National Science Foundation under Cooperative agreement
no. PHY-11-02511, and the U.S. Department of Energy under Contract
DE-AC02-06CH11357.
NR 20
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U1 1
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 543
EP 546
DI 10.1016/j.nima.2014.06.075
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200070
ER
PT J
AU Chipps, KA
Greife, U
Bardayan, DW
Blackmon, JC
Kontos, A
Linhardt, LE
Matos, M
Pain, SD
Pittman, ST
Sachs, A
Schatz, H
Schmitt, KT
Smith, MS
Thompson, P
AF Chipps, K. A.
Greife, U.
Bardayan, D. W.
Blackmon, J. C.
Kontos, A.
Linhardt, L. E.
Matos, M.
Pain, S. D.
Pittman, S. T.
Sachs, A.
Schatz, H.
Schmitt, K. T.
Smith, M. S.
Thompson, P.
TI The Jet Experiments in Nuclear Structure and Astrophysics (JENSA) gas
jet target
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Gas jet target; Transfer reactions; Capture reactions; Radioactive ion
beams
ID DENSITY
AB New radioactive ion beam (RIB) facilities will push further away from stability and enable the next generation of nuclear physics experiments. Of great importance to the future of RIB physics are scattering, transfer, and capture reaction measurements of rare, exotic, and unstable nuclei on light targets such as hydrogen and helium. These measurements require targets that are dense, highly localized, and pure. Targets must also accommodate the use of large area silicon detector arrays, high-efficiency gamma arrays, and heavy ion detector systems to efficiently measure the reaction products. To address these issues, the Jet Experiments in Nuclear Structure and Astrophysics (JENSA) Collaboration has designed, built, and characterized a supersonic gas jet target, capable of providing gas areal densities on par with commonly used solid targets within a region of a few millimeters diameter. Densities of over 5 x 10(18) atoms/cm(2) of helium have been achieved, making the JENSA gas jet target the most dense helium jet achieved so far. (C) 2014 Elsevier B.V. All rights reserved,
C1 [Chipps, K. A.; Greife, U.] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA.
[Chipps, K. A.; Matos, M.; Pittman, S. T.; Sachs, A.; Schmitt, K. T.; Thompson, P.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Chipps, K. A.; Bardayan, D. W.; Matos, M.; Pain, S. D.; Smith, M. S.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Bardayan, D. W.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Blackmon, J. C.; Linhardt, L. E.] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA.
[Kontos, A.; Schatz, H.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
[Kontos, A.] Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA.
RP Chipps, KA (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
EM kchipps@nuclearemail.org
RI Pain, Steven/E-1188-2011;
OI Pain, Steven/0000-0003-3081-688X; Chipps, Kelly/0000-0003-3050-1298
FU US DOE Office of Nuclear Physics (Colorado School of Mines grant)
[DE-FG02-10ER41704, DE-FG02-93ER40789]; NSF
FX The authors wish to thank Devin Connolly at the Colorado School of Mines
for producing the camera-ready CAD images for Figs, 1-3, This work is
supported by the US DOE Office of Nuclear Physics (Colorado School of
Mines grants DE-FG02-10ER41704 and DE-FG02-93ER40789) and the NSF.
NR 25
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PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 553
EP 564
DI 10.1016/j.nima.2014.00.042
PG 12
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200072
ER
PT J
AU Dolan, JL
Flaska, M
Poitrasson-Riviere, A
Enqvist, A
Peerani, P
Chichester, DL
Pozzi, SA
AF Dolan, Jennifer L.
Flaska, Marek
Poitrasson-Riviere, Alexis
Enqvist, Andreas
Peerani, Paolo
Chichester, David L.
Pozzi, Sara A.
TI Plutonium measurements with a fast-neutron multiplicity counter for
nuclear safeguards applications
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Nuclear safeguards; He-3 alternatives; Liquid scintillation detectors;
MCNPX-PoliMi
ID PULSE-SHAPE DISCRIMINATION; GAMMA-RAY
AB Measurements were performed at the joint Research Centre in Ispra, Italy to field test a fast-neutron multiplicity counter developed at the University of Michigan. The measurements allowed the assessment of the system's photon discrimination abilities, efficiency when measuring neutron multiplicity, ability to characterize Pu-240(eff) mass, and performance relative to a currently deployed neutron coincidence counter. This work is motivated by the need to replace and improve upon He-3 neutron detection systems for nuclear safeguards applications. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Dolan, Jennifer L.; Flaska, Marek; Poitrasson-Riviere, Alexis; Pozzi, Sara A.] Univ Michigan, Nucl Engn & Radiol Sci Dept, Ann Arbor, MI 48109 USA.
[Enqvist, Andreas] Univ Florida, Gainesville, FL 32611 USA.
[Peerani, Paolo] European Commiss, Joint Res Ctr, Inst Transuranium Elements, Ispra, Italy.
[Chichester, David L.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Dolan, JL (reprint author), Univ Michigan, Nucl Engn & Radiol Sci Dept, Ann Arbor, MI 48109 USA.
EM jldolan@umich.edu
FU U.S. Department of Energy's Fuel Cycle Technologies Program, in the
Material Protection, Accounting, and Control Technologies (MPACT)
Campaign; U.S. Department of Energy by Battelle Energy
[AC07-05-ID14517]; National Science Foundation; Domestic Nuclear
Detection Office of the U.S. Department of Homeland Security through the
Academic Research Initiative Award [CMMI 0938909]; U.S. Department of
Homeland Security's Domestic Nuclear Detection Office; U.S. Department
of Defense's Defense Threat Reduction Agency
FX This work was supported by the U.S. Department of Energy's Fuel Cycle
Technologies Program, in the Material Protection, Accounting, and
Control Technologies (MPACT) Campaign. Idaho National Laboratory is
operated for the U.S. Department of Energy by Battelle Energy Alliance
under DOE contract DE-AC07-05-ID14517. This work was also supported by
the National Science Foundation and the Domestic Nuclear Detection
Office of the U.S. Department of Homeland Security through the Academic
Research Initiative Award # CMMI 0938909. This research was performed
under the Nuclear Forensics Graduate Fellowship Program which is
sponsored by the U.S. Department of Homeland Security's Domestic Nuclear
Detection Office and the U.S. Department of Defense's Defense Threat
Reduction Agency.
NR 18
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Z9 9
U1 0
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 565
EP 574
DI 10.1016/j.nima.2014.06.028
PG 10
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200073
ER
PT J
AU Li, YJ
Wang, LF
Lin, FL
AF Li, Yingjie
Wang, Lanfa
Lin, Fanglei
TI Landau damping effects and evolutions of energy spread in small
isochronous ring
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Isochronous ring; Microwave instability; Space charge field; Landau
damping; 2D dispersion relation; Energy spread
AB This paper presents the Landau damping effects on the microwave instability of a coasting long bunch in an isochronous ring due to Unite energy spread and emittance. Our two-dimensional (2D) dispersion relation gives more accurate predictions of the microwave instability growth rates of short-wavelength perturbations than the conventional ID formula. The long-term evolution of energy spread is also studied by measurements and simulations. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Li, Yingjie] Michigan State Univ, Dept Phys, E Lansing, MI 48824 USA.
[Wang, Lanfa] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
[Lin, Fanglei] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
RP Li, YJ (reprint author), Michigan State Univ, Dept Phys, E Lansing, MI 48824 USA.
EM liyingji@msu.edu
FU NSF Grant [PHY 0606007]
FX We would like to thank Prof. F. Marti and T. P. Wangler for their
guidance. We are also grateful to Y.C. Wang, S. Y. Lee, K. Y. Ng, G.
Stupakov, E. Pozdeyev, A. W. Chao, R. York, M. Syphers, V. Zelevinsky,
J. Baldwin, and J. A. Rodriguez for their fruitful discussions and
suggestions. This work was supported by NSF Grant # PHY 0606007.
NR 18
TC 1
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U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD NOV 1
PY 2014
VL 763
BP 674
EP 687
DI 10.1016/j.nima.2014.06.070
PG 14
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA AP3ON
UT WOS:000341986200079
ER
PT J
AU Tak, T
Lee, D
Kim, TK
Hong, SG
AF Tak, Taewoo
Lee, Deokjung
Kim, T. K.
Hong, Ser Gi
TI Optimization study of Ultra-long Cycle Fast Reactor core concept
SO ANNALS OF NUCLEAR ENERGY
LA English
DT Article
DE Ultra-long Cycle Fast Reactor; Optimization; Breed-and-burn; Safety
ID SUBCHANNEL ANALYSIS; CODE; DESIGN
AB An optimization of an Ultra-long Cycle Fast Reactor (UCFR) design with a power rating of 1000 MW (electric), UCFR-1000, has been performed. Firstly, geometric optimization has been performed in the aspects of core size and core shape in terms of thermal-hydraulic (TH) feedback. Secondly, fuel composition optimization has been performed by adopting pressurized water reactor (PWR) spent fuel (SF) as a blanket material as well as natural uranium (NU). Thirdly, thorium has been loaded in the inner core for the optimization of radial power distribution. Lastly, a small-size UCFR with a power rate of 100 MWe has been developed with optimization of maximum neutron flux and fast neutron fluence limit for a short term deployable nuclear reactor.
The equivalent diameter and the height of the optimized UCFR-1000 core are 5.9 and 2.4 m, respectively, while the equivalent diameter and the height of the optimized UCFR-100 core are 4.3 and 1.0 m, respectively. The size of the optimized UCFR-1000 has been enlarged in the radial direction and shortened in the axial direction from those of the initial UCFR design (Tak et al., 2013a) and this modification makes the burning speed of active core movement slower. It has been confirmed for both designs that a full-power operation of 60 years without refueling is feasible with respect to isotopics and criticality by a breed-and-burn strategy. The core performance characteristics of both designs have been evaluated in terms of axial/radial power shapes, neutron flux and nuclide distributions, breeding ratio, reactivity feedback coefficients, control rod worth, etc. By the design optimization study in this paper, the reductions of maximum neutron flux, fast neutron fluence, and axial/radial power peaking have been achieved, which are favorable for the safety of the UCFR. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Tak, Taewoo; Lee, Deokjung] Ulsan Natl Inst Sci & Technol, Ulsan 689798, South Korea.
[Kim, T. K.] Argonne Natl Lab, Argonne, IL 60564 USA.
[Hong, Ser Gi] Kyung Hee Univ, Yongin 446701, Gyeonggi Do, South Korea.
RP Lee, D (reprint author), Ulsan Natl Inst Sci & Technol, UNIST Gil 50, Ulsan 689798, South Korea.
EM deokjung@unist.ac.kr; tkkim@anl.gov; sergihong@khu.ac.kr
OI Lee, Deokjung/0000-0002-3935-5058
FU National Research Foundation of Korea (NRF) - Korean government (MSIP)
FX This work was supported by a National Research Foundation of Korea (NRF)
grant funded by the Korean government (MSIP).
NR 36
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0306-4549
J9 ANN NUCL ENERGY
JI Ann. Nucl. Energy
PD NOV
PY 2014
VL 73
BP 145
EP 161
DI 10.1016/j.anucene.2014.06.030
PG 17
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AP7HM
UT WOS:000342248400015
ER
PT J
AU Carney, S
Brown, F
Kiedrowski, B
Martin, W
AF Carney, Sean
Brown, Forrest
Kiedrowski, Brian
Martin, William
TI Theory and applications of the fission matrix method for
continuous-energy Monte Carlo
SO ANNALS OF NUCLEAR ENERGY
LA English
DT Article
DE Monte Carlo; Criticality; k-Effective; Eigenmodes
ID CRITICALITY
AB The fission matrix method can be used to provide estimates of the fundamental mode fission distribution, the dominance ratio, the eigenvalue spectrum, and higher mode forward and adjoint eigenfunctions of the fission distribution. It can also be used to accelerate the convergence of power method iterations and to provide basis functions for higher-order perturbation theory. The higher-mode fission sources can be used to determine higher-mode forward fluxes and tallies, and work is underway to provide higher-mode adjoint-weighted fluxes and tallies. These aspects of the method are here both theoretically justified and demonstrated, and then used to investigate fundamental properties of the transport equation for a continuous-energy physics treatment. Implementation into the MCNP6 Monte Carlo code is also discussed, including a sparse representation of the fission matrix, which permits much larger and more accurate representations. Properties of the calculated eigenvalue spectrum of a 2D PWR problem are discussed: for a fine enough mesh and a sufficient degree of sampling, the spectrum both converges and has a negligible imaginary component. Calculation of the fundamental mode of the fission matrix for a fuel storage vault problem shows how convergence can be accelerated by over a factor of ten given a flat initial distribution. Forward fluxes and the relative uncertainties for a 2D PWR are shown, both of which qualitatively agree with expectation. Lastly, eigenmode expansions are performed during source convergence of the 2D PWR problem for two initial distributions; observed decay rates of coefficients agree closely with expectation. Published by Elsevier Ltd.
C1 [Carney, Sean; Martin, William] Univ Michigan, Ann Arbor, MI 48109 USA.
[Brown, Forrest; Kiedrowski, Brian] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Carney, S (reprint author), Univ Michigan, 2355 Bonisteel Blvd, Ann Arbor, MI 48109 USA.
EM seanec@umich.edu
FU Department of Energy Nuclear Energy University Programs Graduate
Fellowship; U.S. Department of Energy
FX This material is based upon work supported under a Department of Energy
Nuclear Energy University Programs Graduate Fellowship. This work was
also supported by the U.S. Department of Energy NNSA Advanced Simulation
and Computing Program and Nuclear Criticality Safety Program.
NR 24
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0306-4549
J9 ANN NUCL ENERGY
JI Ann. Nucl. Energy
PD NOV
PY 2014
VL 73
BP 423
EP 431
DI 10.1016/j.anucene.2014.07.020
PG 9
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AP7HM
UT WOS:000342248400043
ER
PT J
AU Martin, WJ
de Oliveira, CRE
Hecht, AA
AF Martin, W. J.
de Oliveira, C. R. E.
Hecht, A. A.
TI Reactor fuel depletion benchmark of TINDER
SO ANNALS OF NUCLEAR ENERGY
LA English
DT Article
DE Burnup; Depletion; Nuclear reactor; CINDER2008; TINDER
AB Accurate burnup calculations are key to proper nuclear reactor design, fuel cycle modeling, and disposal estimations. The TINDER code, originally designed for activation analyses, has been modified to handle full burnup calculations, including the widely used predictor-corrector feature: In order to properly characterize the performance of TINDER for this application, a benchmark calculation was performed. Although the results followed the trends of past benchmarked codes for a UO2 PWR fuel sample from the Takahama-3 reactor, there were obvious deficiencies in the final result, likely in the nuclear data library that was used. Isotopic comparisons versus experiment and past code benchmarks are given, as well as hypothesized areas of deficiency and future work. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Martin, W. J.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[de Oliveira, C. R. E.; Hecht, A. A.] Univ New Mexico, Albuquerque, NM 87131 USA.
RP Martin, WJ (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM wjmarti@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 13
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U1 3
U2 8
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0306-4549
J9 ANN NUCL ENERGY
JI Ann. Nucl. Energy
PD NOV
PY 2014
VL 73
BP 547
EP 551
DI 10.1016/j.anucene.2014.04.036
PG 5
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA AP7HM
UT WOS:000342248400056
ER
PT J
AU Stadler, M
Groissbock, M
Cardoso, G
Marnay, C
AF Stadler, M.
Groissboeck, M.
Cardoso, G.
Marnay, C.
TI Optimizing Distributed Energy Resources and building retrofits with the
strategic DER-CAModel
SO APPLIED ENERGY
LA English
DT Article
DE Building retrofits; Distributed energy resources; Microgrid; Mixed
integer linear programming; Strategic decision; Zero net energy
buildings
ID EFFICIENCY
AB The pressuring need to reduce the import of fossil fuels as well as the need to dramatically reduce CO2 emissions in Europe motivated the European Commission (EC) to implement several regulations directed to building owners. Most of these regulations focus on increasing the number of energy efficient buildings, both new and retrofitted, since retrofits play an important role in energy efficiency. Overall, this initiative results from the realization that buildings will have a significant impact in fulfilling the 20/20/20-goals of reducing the greenhouse gas emissions by 20%, increasing energy efficiency by 20%, and increasing the share of renewables to 20%, all by 2020.
The Distributed Energy Resources Customer Adoption Model (DER-CAM) is an optimization tool used to support DER investment decisions, typically by minimizing total annual costs or CO2 emissions while providing energy services to a given building or microgrid site. This paper shows enhancements made to DER-CAM to consider building retrofit measures along with DER investment options. Specifically, building shell improvement options have been added to DER-CAM as alternative or complementary options to investments in other DER such as PV, solar thermal, combined heat and power, or energy storage. The extension of the mathematical formulation required by the new features introduced in DER-CAM is presented and the resulting model is demonstrated at an Austrian Campus building by comparing DERCAM results with and without building shell improvement options. Strategic investment results are presented and compared to the observed investment decision at the test site. Results obtained considering building shell improvement options suggest an optimal weighted average U value of about 0.53 W/(m(2) K) for the test site. This result is approximately 25% higher than what is currently observed in the building, suggesting that the retrofits made in 2002 were not optimal. Furthermore, the results obtained with DER-CAM illustrate the complexity of interactions between DER and passive measure options, showcasing the need for a holistic optimization approach to effectively optimize energy costs and CO2 emissions. The simultaneous optimization of building shell improvements and DER investments enables building owners to take one step further towards nearly zero energy buildings (nZEB) or nearly zero carbon emission buildings (nZCEB), and therefore support the 20/20/20 goals. Published by Elsevier Ltd.
C1 [Stadler, M.; Groissboeck, M.; Cardoso, G.; Marnay, C.] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Stadler, M.; Groissboeck, M.] Ctr Energy & Innovat Technol CET, A-3681 Hofamt Priel, Austria.
[Cardoso, G.] Univ Tecn Lisboa, Inst Super Tecn, P-1100 Lisbon, Portugal.
RP Stadler, M (reprint author), Ernest Orlando Lawrence Berkeley Natl Lab, One Cyclotron Rd,MS 90-1121, Berkeley, CA 94720 USA.
EM mstadler@lbl.gov
FU Office of Electricity Delivery and Energy Reliability, Distributed
Energy Program of the U.S. Department of Energy [DE-AC02-05CH11231]
FX The Distributed Energy Resources Customer Adoption Model (DER-CAM) has
been designed at Lawrence Berkeley National Laboratory (LBNL). DER-CAM
has been funded partly by the Office of Electricity Delivery and Energy
Reliability, Distributed Energy Program of the U.S. Department of Energy
under Contract No. DE-AC02-05CH11231.
NR 24
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Z9 21
U1 3
U2 39
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0306-2619
EI 1872-9118
J9 APPL ENERG
JI Appl. Energy
PD NOV 1
PY 2014
VL 132
BP 557
EP 567
DI 10.1016/j.apenergy.2014.07.041
PG 11
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA AP7HC
UT WOS:000342247400053
ER
PT J
AU Pan, JJ
Marquardt, D
Heberle, FA
Kucerka, N
Katsaras, J
AF Pan, Jianjun
Marquardt, Drew
Heberle, Frederick A.
Kucerka, Norbert
Katsaras, John
TI Revisiting the bilayer structures of fluid phase phosphatidylglycerol
lipids: Accounting for exchangeable hydrogens
SO BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
LA English
DT Article
DE Lipid bilayer structure; SANS; SAXS; MD simulations; PG lipid; Hydrogen
exchange
ID X-RAY-SCATTERING; SMALL-ANGLE NEUTRON; MEMBRANES; SIMULATIONS; NMR;
DISTRIBUTIONS; SPECTROSCOPY; MIXTURES; STEROLS; LENGTH
AB We recently published two papers detailing the structures of fluid phase phosphatidylglycerol (PG) lipid bilayers (Kucerka et al., 20121 Phys. Chem. B 116: 232-239; Pan et al., 2012 Biochim. Biophys. Acta Biomembr. 1818: 2135-2148), which were determined using the scattering density profile model. This hybrid experimental/computational technique utilizes molecular dynamics simulations to parse a lipid bilayer into components whose volume probabilities follow simple analytical functional forms. Given the appropriate scattering densities, these volume probabilities are then translated into neutron scattering length density (NSLD) and electron density (ED) profiles, which are used to jointly refine experimentally obtained small angle neutron and X-ray scattering data. However, accurate NSLD and ED profiles can only be obtained if the bilayer's chemical composition is known. Specifically, in the case of neutron scattering, the lipid's exchangeable hydrogens with aqueous D2O must be accounted for, as they can have a measureable effect on the resultant lipid bilayer structures. This was not done in our above-mentioned papers. Here we report on the molecular structures of PG lipid bilayers by appropriately taking into account the exchangeable hydrogens. Analysis indicates that the temperature-averaged PG lipid areas decrease by 15 to 3.8 angstrom(2), depending on the lipid's acyl chain length and unsaturation, compared to PG areas when hydrogen exchange was not taken into account. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Pan, Jianjun] Univ S Florida, Dept Phys, Tampa, FL 33620 USA.
[Marquardt, Drew; Katsaras, John] Brock Univ, Dept Phys, St Catharines, ON L2S 3A1, Canada.
[Heberle, Frederick A.; Katsaras, John] Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN 37831 USA.
[Kucerka, Norbert] Comenius Univ, Dept Phys Chem Drugs, Bratislava 83232, Slovakia.
[Kucerka, Norbert] Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna 141980, Russia.
[Katsaras, John] Oak Ridge Natl Lab, Joint Inst Neutron Scattering, Oak Ridge, TN 37831 USA.
[Katsaras, John] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
RP Pan, JJ (reprint author), Univ S Florida, Dept Phys, Tampa, FL 33620 USA.
EM panj@usf.edu; katsarasj@ornl.gov
OI Katsaras, John/0000-0002-8937-4177; Marquardt, Drew/0000-0001-6848-2497
FU Scientific User Facilities Division of the DOE Office of Basic Energy
Sciences (BES); Laboratory Directed Research and Development Program of
Oak Ridge National Laboratory (ORNL) [DE-AC05-00OR2275]; University of
South Florida
FX J.K. is supported through the Scientific User Facilities Division of the
DOE Office of Basic Energy Sciences (BES), and by the Laboratory
Directed Research and Development Program of Oak Ridge National
Laboratory (ORNL), managed by UT-Battelle, LLC, for the U.S. Department
of Energy (DOE) under contract no. DE-AC05-00OR2275. J.J.P. is partially
supported by a startup fund from the University of South Florida.
NR 26
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U1 1
U2 18
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0005-2736
EI 0006-3002
J9 BBA-BIOMEMBRANES
JI Biochim. Biophys. Acta-Biomembr.
PD NOV
PY 2014
VL 1838
IS 11
BP 2966
EP 2969
DI 10.1016/j.bbamem.2014.08.009
PG 4
WC Biochemistry & Molecular Biology; Biophysics
SC Biochemistry & Molecular Biology; Biophysics
GA AQ0MM
UT WOS:000342477400022
PM 25135659
ER
PT J
AU Huang, YP
Zheng, QP
Wang, JH
AF Huang, Yuping
Zheng, Qipeng P.
Wang, Jianhui
TI Two-stage stochastic unit commitment model including non-generation
resources with conditional value-at-risk constraints
SO ELECTRIC POWER SYSTEMS RESEARCH
LA English
DT Article
DE Stochastic unit commitment; Demand response; Energy storage; Conditional
value-at-risk; Benders decomposition; Sensitivity analysis
ID TRANSMISSION NETWORK EXPANSION; WIND POWER-GENERATION; ENERGY-STORAGE;
DEMAND RESPONSE; SYSTEM; UNCERTAINTIES; OPTIMIZATION; MANAGEMENT;
ALGORITHM; RESERVE
AB This paper presents a two-stage stochastic unit commitment (UC) model, which integrates non-generation resources such as demand response (DR) and energy storage (ES) while including risk constraints to balance between cost and system reliability due to the fluctuation of variable generation such as wind and solar power. This paper uses conditional value-at-risk (CVaR) measures to model risks associated with the decisions in a stochastic environment. In contrast to chance-constrained models requiring extra binary variables, risk constraints based on CVaR only involve linear constraints and continuous variables, making it more computationally attractive. The proposed models with risk constraints are able to avoid over-conservative solutions but still ensure system reliability represented by loss of loads. Then numerical experiments are conducted to study the effects of non-generation resources on generator schedules and the difference of total expected generation costs with risk consideration. Sensitivity analysis based on reliability parameters is also performed to test the decision preferences of confidence levels and load-shedding loss allowances on generation cost reduction. (c) 2014 Elsevier B.V. All rights reserved.
C1 [Huang, Yuping; Zheng, Qipeng P.] Univ Cent Florida, Dept Ind Engn & Management Syst, Orlando, FL 32816 USA.
[Wang, Jianhui] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Huang, YP (reprint author), Univ Cent Florida, Dept Ind Engn & Management Syst, Orlando, FL 32816 USA.
EM yuping.huang@knights.ucf.edu
OI Zheng, Qipeng/0000-0002-4597-3426
FU National Science Foundation [CMMI-1355939, ECCS-1232168]; U.S.
Department of Energy (DOE) Office of Electricity Delivery and Energy
Reliability
FX The works of the first and the second author are in part supported by
the National Science Foundation under grants CMMI-1355939 and
ECCS-1232168. The third author is supported by the U.S. Department of
Energy (DOE) Office of Electricity Delivery and Energy Reliability. The
authors also would like to thank the reviewers for their suggestions on
improving the quality of this paper.
NR 41
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Z9 14
U1 4
U2 26
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0378-7796
EI 1873-2046
J9 ELECTR POW SYST RES
JI Electr. Power Syst. Res.
PD NOV
PY 2014
VL 116
BP 427
EP 438
DI 10.1016/j.epsr.2014.07.010
PG 12
WC Engineering, Electrical & Electronic
SC Engineering
GA AP7OX
UT WOS:000342267700046
ER
PT J
AU Xie, ZL
Blair, RG
Orlovskaya, N
Cullen, DA
Payzant, EA
AF Xie, Zhilin
Blair, Richard G.
Orlovskaya, Nina
Cullen, David A.
Payzant, E. Andrew
TI Thermal stability of hexagonal OsB2
SO JOURNAL OF SOLID STATE CHEMISTRY
LA English
DT Article
DE Osmium; Boron; Stability; Coefficient of thermochemical expansion
ID OSMIUM DIBORIDE; HARD MATERIAL; TRANSITION; BORIDES
AB The synthesis of novel hexagonal ReB2-type OsB2 ceramic powder was performed by high energy ball milling of elemental Os and B powders. Two different sources of B powder have been used for this mechanochemical synthesis. One B powder consisted of a mixture of amorphous and crystalline phases and a mixture of B-10 and B-11 isotopes with a fine particle size, while another B powder was a purely crystalline (rhombohedral) material consisting of enriched B-11 isotope with coarse particle size. The same Os powder was used for the synthesis in both cases. It was established that, in the first case, the hexagonal OsB2 phase was the main product of synthesis with a small quantity of Os2B3 phase present after synthesis as an intermediate product. In the second case, where coarse crystalline 11B powder was used as a raw material, only Os2B3 boride was synthesized mechanochemically.
The thermal stability of hexagonal OsB2 powder was studied by heating under argon up to 876 degrees C and cooling in vacuo down to -225 degrees C. During the heating, the sacrificial reaction 2OsB(2) + 3O(2) -> 2Os + 2B(2)O(3) took place due to presence of O-2/water vapor molecules in the heating chamber, resulting in the oxidation of B atoms and formation of B2O3 and precipitation of Os metal out of the OsB2 lattice. As a result of such phase changes during heating, the lattice parameters of hexagonal OsB2 changed significantly. The shrinkage of the a lattice parameter was recorded in 276-426 degrees C temperature range upon heating, which was attributed to the removal of B atoms from the OsB2 lattice due to oxidation followed by the precipitation of Os atoms and formation of Os metal. While significant structural changes occurred upon heating due to presence of O-2, the hexagonal OsB2 ceramic demonstrated good phase stability upon cooling in vacuo with linear shrinkage of the lattice parameters and no phase changes detected during cooling. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Xie, Zhilin; Blair, Richard G.; Orlovskaya, Nina] Univ Cent Florida, Dept Mech & Aerosp Engn, Orlando, FL 32816 USA.
[Blair, Richard G.] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA.
[Cullen, David A.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Payzant, E. Andrew] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Orlovskaya, N (reprint author), Univ Cent Florida, Dept Mech & Aerosp Engn, Orlando, FL 32816 USA.
EM Nina.Orlovskaya@ucf.edu
RI Payzant, Edward/B-5449-2009; Cullen, David/A-2918-2015
OI Payzant, Edward/0000-0002-3447-2060; Cullen, David/0000-0002-2593-7866
FU NSF [DMR - 0748364]; Center for Nanophase Material Sciences; Scientific
User Facilities Division, Office of Basic Energy Sciences, U.S.
Department of Energy at Oak Ridge National Laboratory
FX This work was supported by NSF projects DMR - 0748364. High and low
temperature X-ray diffraction studies and electron microscopy were
supported by Center for Nanophase Material 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.
The authors also wish to thank Ceradyne, Inc. for the donation the
crystalline 11B powder.
NR 12
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Z9 6
U1 1
U2 17
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0022-4596
EI 1095-726X
J9 J SOLID STATE CHEM
JI J. Solid State Chem.
PD NOV
PY 2014
VL 219
BP 210
EP 219
DI 10.1016/j.jssc.2014.07.035
PG 10
WC Chemistry, Inorganic & Nuclear; Chemistry, Physical
SC Chemistry
GA AP8NQ
UT WOS:000342336100029
ER
PT J
AU Petersen, LB
Lipton, AS
Zorin, V
Nielsen, UG
AF Petersen, Line Boisen
Lipton, Andrew S.
Zorin, Vadim
Nielsen, Ulla Gro
TI Local environment and composition of magnesium gallium layered double
hydroxides determined from solid-state H-1 and Ga-71 NMR spectroscopy
SO JOURNAL OF SOLID STATE CHEMISTRY
LA English
DT Article
DE Layered double hydroxides; Cation ordering; Solid state NMR
ID HYDROTALCITE-LIKE COMPOUNDS; MAGNETIC-RESONANCE-SPECTROSCOPY;
QUADRUPOLAR NUCLEI; MAS NMR; MG-AL; DYNAMICS; GA; IDENTIFICATION;
HYDROLYSIS; OXYANIONS
AB Ordering of gallium(III) in a series of magnesium gallium (MgGa) layered double hydroxides (LDHs), [Mg1-xGax(OH)(2)(NO3)(x).yH(2)O] was investigated using solid-state H-1 and Ga-71 NMR spectroscopy as well as powder X-ray diffraction. Three different proton environments from Mg-3-OH, Mg2Ga-OH and intergallery water molecules were assigned and quantified using {H-1,Ga-71} HETCOR and H-1 MAS NMR. A single Ga-71 site originating from the unique Go site in the MgGa LDH's was observed in Ga-71 MAS and 3QMAS NMR spectra. Both H-1 MAS NMR spectra recorded at 21.1 T (900 MHz) and elemental analysis show that the synthesized MgGa LDH's had a lower Mg:Go ratio than that of the starting reactant solution. The origin of this is the formation of soluble [Ga(OH)(4)](-) complexes formed during synthesis, and not due to formation of insoluble gallium (oxy)hydroxides. No sign of Ga-O-Ga connectivities or defects were detected for the MgGa LDH's. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Petersen, Line Boisen; Nielsen, Ulla Gro] Univ Southern Denmark, Dept Phys Chem & Pharm, DK-5230 Odense M, Denmark.
[Lipton, Andrew S.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99354 USA.
[Zorin, Vadim] Agilent Technol UK Ltd, Yarnton OX5 1QU, Oxon, England.
RP Nielsen, UG (reprint author), Univ Southern Denmark, Dept Phys Chem & Pharm, DK-5230 Odense M, Denmark.
EM ugn@sdu.dk
OI Zorin, Vadim/0000-0002-5572-0166; Nielsen, Ulla Gro/0000-0002-2336-3061
FU Villum Young Investigator Programme [VKR022364]; Office of Biological
and Environmental Research at Pacific Northwest National Laboratory
FX This work was financially supported by the "Villum Young Investigator
Programme" (UGN and LBP) (grant no. VKR022364). A portion of the
research was performed using EMSL, a DOE Office of Science User Facility
sponsored by the Office of Biological and Environmental Research and
located at Pacific Northwest National Laboratory. Ms. Carina Lohmann,
Department of Biology, University of Southern Denmark is thanked for
performing the ICP analysis.
NR 34
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Z9 5
U1 4
U2 47
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0022-4596
EI 1095-726X
J9 J SOLID STATE CHEM
JI J. Solid State Chem.
PD NOV
PY 2014
VL 219
BP 242
EP 246
DI 10.1016/j.jssc.2014.07.023
PG 5
WC Chemistry, Inorganic & Nuclear; Chemistry, Physical
SC Chemistry
GA AP8NQ
UT WOS:000342336100033
ER
PT J
AU Sombrio, CIL
Franzen, PL
dos Reis, R
Boudinov, HI
Baptista, DL
AF Sombrio, C. I. L.
Franzen, P. L.
dos Reis, R.
Boudinov, H. I.
Baptista, D. L.
TI Passivation of defects in ZnO nanowires by SiO2 sputtering deposition
SO MATERIALS LETTERS
LA English
DT Article
DE Zinc oxide nanowires; SiO2 matrix; Photoluminescence; Native point
defects passivation
ID GROWTH; SIZE
AB Passivation of native point defects in ZnO nanowires was successfully achieved by SiO2 deposition. The ZnO nanowires were grown on sapphire by the vapor-liquid-solid method and coated with SiO2 through reactive sputtering deposition. The samples were post-annealed at different temperatures in Argon atmosphere. Photoluminescence measurements at room temperature and electron transmission microscopy were performed. The coated nanowires present a core-shell structure. A strong oxygen vacancies passivation were observed resulting in a drastic suppression on visible light emissions in favor of UV ones. On the other hand, annealing at increasingly higher temperatures favored the oxygen desorption and the increase of deep-level states. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Sombrio, C. I. L.; Franzen, P. L.; Boudinov, H. I.; Baptista, D. L.] Univ Fed Rio Grande do Sul, Inst Fis, BR-91509900 Porto Alegre, RS, Brazil.
[dos Reis, R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
RP Sombrio, CIL (reprint author), Univ Fed Rio Grande do Sul, Inst Fis, BR-91509900 Porto Alegre, RS, Brazil.
EM caroline.lisevski@gmail.com
RI Boudinov, Henri/D-2274-2009; Baptista, Daniel/I-2605-2012; dos Reis,
Roberto/E-9486-2012
OI Baptista, Daniel/0000-0002-2658-6412; dos Reis,
Roberto/0000-0002-6011-6078
FU CNPq; CAPES; National Center for Electron Microscopy, Lawrence Berkeley
Lab; U.S. Department of Energy [DE-AC02-05CH11231]
FX This project is supported by CNPq and CAPES. The authors appreciate the
use of the CME and CNANO facilities at UFRGS. D. L. Baptista thanks
DIMAT/NULAM for the use of Electron Microscopy facilities at INMETRO. R.
dos Reis acknowledge the support of the National Center for Electron
Microscopy, Lawrence Berkeley Lab, which is supported by the U.S.
Department of Energy under Contract # DE-AC02-05CH11231.
NR 14
TC 0
Z9 0
U1 0
U2 33
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-577X
EI 1873-4979
J9 MATER LETT
JI Mater. Lett.
PD NOV 1
PY 2014
VL 134
BP 126
EP 129
DI 10.1016/j.matlet.2014.07.066
PG 4
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA AP7GE
UT WOS:000342245000033
ER
PT J
AU Didomizio, R
Huang, SY
Dial, L
Ilavsky, J
Larsen, M
AF Didomizio, Richard
Huang, Shenyan
Dial, Laura
Ilavsky, Jan
Larsen, Mike
TI An Assessment of Milling Time on the Structure and Properties of a
Nanostructured Ferritic Alloy (NFA)
SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND
MATERIALS SCIENCE
LA English
DT Article
ID PARTICLE-SIZE DISTRIBUTIONS; STRENGTHENING MECHANISMS;
TEMPERATURE-DEPENDENCE; STEELS; OXIDE; DISLOCATIONS; DEFORMATION;
SCATTERING; HELIUM; CREEP
AB The tensile properties of a 14 wt pct chromium nanostructured ferritic alloy (NFA) are assessed as a function of attrition time. Small angle X-ray scattering results show quantitatively that the number density of precipitated oxides increases as a function of milling time. This difference in oxide density alone is not enough to describe the tensile behavior of the NFA as a function of temperature. As a result, a previously proposed root mean square strengthening model is applied to the current study where direct dispersion strengthening, grain boundary strengthening, dislocation forest hardening, and matrix hardening are all considered. When an optimization routine is conducted, the fitting results suggest that the precipitated oxides are soft obstacles to dislocation motion.
C1 [Didomizio, Richard; Huang, Shenyan; Dial, Laura; Larsen, Mike] GE Global Res, Niskayuna, NY 12309 USA.
[Ilavsky, Jan] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Didomizio, R (reprint author), GE Global Res, Niskayuna, NY 12309 USA.
EM didomizr@crd.ge.com
RI Ilavsky, Jan/D-4521-2013
OI Ilavsky, Jan/0000-0003-1982-8900
FU Department of Energy [EE0003487]; agency of the United States
Government; National Science Foundation/Department of Energy
[NSF/CHE-0822838]; U.S. DoE [DE-AC02-06CH11357]
FX This material is based upon work supported by the Department of Energy
under Award Number EE0003487. This report was prepared as an account of
work sponsored by an agency of the United States Government. Neither the
United States Government nor any agency thereof, nor any of their
employees, makes any warranty, express or implied, or assumes and legal
liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process disclosed,
or represents that its use would not infringe privately owned rights.
Reference herein to any specific commercial product, process, or service
by trade name, trademark, manufacturer, or otherwise does not
necessarily constitute or imply its endorsement, recommendation, or
favoring by the United States Government or any agency thereof. The
views and opinions of authors expressed herein do not necessarily state
or reflect those of the United States Government or any agency thereof.
ChemMatCARS Sector 15 is principally supported by the National Science
Foundation/Department of Energy under grant number NSF/CHE-0822838. 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 authors greatly acknowledge Dr.
Matthew Alinger, Dr. Ernie Hall, Dr. Yan Gao, Mr. Orrie Riccobono, Mr.
Ian Spinelli, Mr. Tony Barbuto, Ms. Rebecca Casey, Mr. Mitchell Hammond,
and Dr. Ning Zhou for their efforts and discussions.
NR 29
TC 2
Z9 2
U1 0
U2 8
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1073-5623
EI 1543-1940
J9 METALL MATER TRANS A
JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci.
PD NOV
PY 2014
VL 45A
IS 12
BP 5409
EP 5418
DI 10.1007/s11661-014-2521-9
PG 10
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA AQ0AI
UT WOS:000342443200018
ER
PT J
AU Lentz, M
Klaus, M
Coelho, RS
Schaefer, N
Schmack, F
Reimers, W
Clausen, B
AF Lentz, Martin
Klaus, Manuela
Coelho, Rodrigo S.
Schaefer, Nobert
Schmack, Florian
Reimers, Walter
Clausen, Bjorn
TI Analysis of the Deformation Behavior of Magnesium-Rare Earth Alloys Mg-2
pct Mn-1 pct Rare Earth and Mg-5 pct Y-4 pct Rare Earth by In Situ
Energy-Dispersive X-ray Synchrotron Diffraction and Elasto-Plastic
Self-Consistent Modeling
SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND
MATERIALS SCIENCE
LA English
DT Article
ID NEUTRON-DIFFRACTION; TENSILE DUCTILITY; TEXTURE; MECHANISMS; PLASTICITY;
ELEMENTS; SLIP
AB The deformation behavior of the Mg-RE alloys ME21 and WE54 was investigated. Although both alloys contain rare earth elements, which alter and weaken the texture, the flow curves of the alloys deviate significantly, especially in uniaxial compression test. Apart from the higher strength of the WE54 alloy, the compression flow curve does not exhibit the typical sigmoidal shape, which is associated with tension twinning. However, optical microscopy, X-ray texture measurements, and EBSD analysis reveal the activity of tension twinning. The combination of in situ energy-dispersive X-ray synchrotron diffraction and EPSC modeling was used to analyze these differences. The investigation reveals that twin propagation is decelerated in the WE54 alloy, which requires a change of the twinning scheme from the 'finite initial fraction' to the 'continuity' assumption. Furthermore, an enhanced activity of the aOE (c) c+a > pyramidal slip system was observed in case of the WE54 alloy.
C1 [Lentz, Martin; Schmack, Florian; Reimers, Walter] Tech Univ Berlin, D-10587 Berlin, Germany.
[Klaus, Manuela; Coelho, Rodrigo S.] Helmholtz Zentrum Berlin Mat & Energien, D-12489 Berlin, Germany.
[Schaefer, Nobert] Helmholtz Zentrum Berlin Mat & Energien, D-14109 Berlin, Germany.
[Clausen, Bjorn] Los Alamos Natl Lab, LANSCE LC, Los Alamos, NM 87545 USA.
RP Lentz, M (reprint author), Tech Univ Berlin, Ernst Reuter Pl 1, D-10587 Berlin, Germany.
EM martin.lentz@tu-berlin.de
RI Clausen, Bjorn/B-3618-2015;
OI Clausen, Bjorn/0000-0003-3906-846X; Lentz, Martin/0000-0001-8310-0063
FU Deutsche Forschungsgemeinschaft (DFG) [RE 688/67-1]; US Department of
Energy Office of Basic Energy Science [FWP 06SCPE401]
FX The authors M. Lentz and W. Reimers are grateful for the financial
support of the Deutsche Forschungsgemeinschaft (DFG) under the Contract
Number RE 688/67-1. B. Clausen acknowledges support from US Department
of Energy Office of Basic Energy Science through Project FWP 06SCPE401.
The authors would like to thank Dr. T. Link (TU Berlin, Metallische
Werkstoffe) for his support of the TEM analysis. The authors thank
Dipl.-Ing. Iryna Driehorst and Dipl.-Ing. Jorg Nissen (TU Berlin, ZELMI)
for the realization of the SEM and EBSD analysis. The authors would like
to thank Dr. C. N. Tome (Los Alamos National Laboratory, MST-8, NM, USA)
for providing the EPSC 4 code and for helpful discussions.
NR 28
TC 9
Z9 9
U1 3
U2 21
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1073-5623
EI 1543-1940
J9 METALL MATER TRANS A
JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci.
PD NOV
PY 2014
VL 45A
IS 12
BP 5721
EP 5735
DI 10.1007/s11661-014-2533-5
PG 15
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA AQ0AI
UT WOS:000342443200044
ER
PT J
AU Dias, FT
Pinheiro, LBLG
de Souz, GB
Serbena, FC
da Silva, SA
Jurelo, AR
Bud'ko, SL
Thaler, A
Canfield, PC
AF Dias, Fabio T.
Pinheiro, Lincoln B. L. G.
de Souz, Gelson B.
Serbena, Francisco C.
da Silva, Simone A.
Jurelo, Alcione R.
Bud'ko, Sergey L.
Thaler, Alex
Canfield, Paul C.
TI Nanoscratch and indentation fracture toughness in superconductor
Ba-Fe-As single crystals with lamellar structure
SO TRIBOLOGY INTERNATIONAL
LA English
DT Article
DE Iron-based superconductor; Lamellar; Nanoscratch; Nanoindentation
ID ORIENTED FESE0.5TE0.5 SUPERCONDUCTOR; INSTRUMENTED INDENTATION; LAYERED
SUPERCONDUCTOR; MECHANICAL-PROPERTIES; FESEX SUPERCONDUCTOR;
ELASTIC-MODULUS; HARDNESS
AB Tribological aspects of Ba(Fe0.974Mn0.026)(2)As-2 single crystals were analyzed through nanoscratch tests and correlated with fracture toughness data. The similar to 100 mu m thick samples present oh-planes stacked by following the c-axis (lamellar structure). Scratch hardness (0.31 GPa for oh-plane and 2.10 GPa for a(b)c-plane) and wear rate are in accordance with previous results for indentation hardness. Microcracking rules the scratching behavior of both planes, the ab-one presenting a marked critical load for cracking that is loading-rate dependent. Fracture toughness, estimated by the minimum load for crack nucleation in indentation tests, was statistically similar, 1.8 +/- 0.9 MPa m(1/2) for the oh-plane and 1.5 +/- 0.5 MPa m(1/2) for the a(b)c-plane. Results lead to the conclusion that the lamellar structure determines the material tribo-mechanical behavior. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Dias, Fabio T.] Univ Fed Pelotas UFPEL, Dept Phys, BR-96010900 Pelotas, RS, Brazil.
[Pinheiro, Lincoln B. L. G.; de Souz, Gelson B.; Serbena, Francisco C.; da Silva, Simone A.; Jurelo, Alcione R.] Univ Estadual Ponta Grossa, Dept Phys, BR-84030000 Ponta Grossa, PR, Brazil.
[Bud'ko, Sergey L.; Thaler, Alex; Canfield, Paul C.] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA.
[Bud'ko, Sergey L.; Thaler, Alex; Canfield, Paul C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
RP de Souz, GB (reprint author), Univ Estadual Ponta Grossa, Dept Phys, Av Gen Carlos Cavalcanti 4748, BR-84030000 Ponta Grossa, PR, Brazil.
EM gelsonbs@uepg.br
RI de Souza, Gelson/F-6002-2015;
OI Thaler, Alexander/0000-0001-5066-8904
FU CNPq [474.077/2007-1, 472.746/2013-8]
FX This work was partially financed by CNPq under Contracts nos.
474.077/2007-1 and 472.746/2013-8. The authors thank Prof. Dr. Carlos M.
Lepienski for the use of the instrumented indentation facilities, the
CME/UFPR and C-LABMU/UEPG for the use of research laboratory facilities.
NR 24
TC 3
Z9 3
U1 3
U2 25
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0301-679X
EI 1879-2464
J9 TRIBOL INT
JI Tribol. Int.
PD NOV
PY 2014
VL 79
BP 84
EP 91
DI 10.1016/j.triboint.2014.05.026
PG 8
WC Engineering, Mechanical
SC Engineering
GA AP7PG
UT WOS:000342268600010
ER
PT J
AU Cai, M
Nonaka, A
Bell, JB
Griffith, BE
Donev, A
AF Cai, Mingchao
Nonaka, Andy
Bell, John B.
Griffith, Boyce E.
Donev, Aleksandar
TI Efficient Variable-Coefficient Finite-Volume Stokes Solvers
SO COMMUNICATIONS IN COMPUTATIONAL PHYSICS
LA English
DT Article
DE Stokes flow; variable density; variable viscosity; saddle point
problems; projection method; preconditioning; GMRES
ID SADDLE-POINT PROBLEMS; ADAPTIVE PROJECTION METHOD; LINEAR-SYSTEMS;
FLUCTUATING HYDRODYNAMICS; UNIFORM PRECONDITIONERS; INCOMPRESSIBLE-FLOW;
EQUATIONS; VISCOSITY; ALGORITHM; ACCURATE
AB We investigate several robust preconditioners for solving the saddle-point linear systems that arise from spatial discretization of unsteady and steady variable-coefficient Stokes equations on a uniform staggered grid. Building on the success of using the classical projection method as a preconditioner for the coupled velocity-pressure system [B. E. Griffith, J. Comp. Phys., 228 (2009), pp. 7565-7595], as well as established techniques for steady and unsteady Stokes flow in the finite-element literature, we construct preconditioners that employ independent generalized Helmholtz and Poisson solvers for the velocity and pressure subproblems. We demonstrate that only a single cycle of a standard geometric multigrid algorithm serves as an effective inexact solver for each of these subproblems. Contrary to traditional wisdom, we find that the Stokes problem can be solved nearly as efficiently as the independent pressure and velocity subproblems, making the overall cost of solving the Stokes system comparable to the cost of classical projection or fractional step methods for incompressible flow, even for steady flow and in the presence of large density and viscosity contrasts. Two of the five preconditioners considered here are found to be robust to GMRES restarts and to increasing problem size, making them suitable for large-scale problems. Our work opens many possibilities for constructing novel unsplit temporal integrators for finite-volume spatial discretizations of the equations of low Mach and incompressible flow dynamics.
C1 [Cai, Mingchao; Griffith, Boyce E.; Donev, Aleksandar] NYU, Courant Inst Math Sci, New York, NY 10012 USA.
[Nonaka, Andy; Bell, John B.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Computat Sci & Engn, Berkeley, CA 94720 USA.
[Griffith, Boyce E.] NYU, Sch Med, Dept Med, Leon H Charney Div Cardiol, New York, NY 10003 USA.
[Griffith, Boyce E.] Univ N Carolina, Dept Math, Chapel Hill, NC 27599 USA.
RP Donev, A (reprint author), NYU, Courant Inst Math Sci, 251 Mercer St, New York, NY 10012 USA.
EM cmchao2005@gmail.com; ajnonaka@lbl.gov; jbbel@lbl.gov;
boyceg@mail.unc.edu; donev@courant.nyu.edu
FU NSF [DMS-1115341]; DOE Office of Science [DE-SC0008271]; National
Science Foundation [OCT 1047734, DMS 1016554]; DOE Applied Mathematics
Program of the DOE Office of Advanced Scientific Computing Research
under the U.S. Department of Energy [DE-AC02-05CH11231]
FX We thank Howard Elman for informative discussions. A. Donev and M. Cai
were supported in part by the NSF under grant DMS-1115341. Additional
support for A. Donev was provided by the DOE Office of Science through
Early Career award DE-SC0008271. B. E. Griffith acknowledges research
support from the National Science Foundation under awards OCT 1047734
and DMS 1016554. J. Bell and A. Nonaka were supported by the DOE Applied
Mathematics Program of the DOE Office of Advanced Scientific Computing
Research under the U.S. Department of Energy under contract No.
DE-AC02-05CH11231.
NR 51
TC 8
Z9 8
U1 0
U2 3
PU GLOBAL SCIENCE PRESS
PI WANCHAI
PA ROOM 3208, CENTRAL PLAZA, 18 HARBOUR RD, WANCHAI, HONG KONG 00000,
PEOPLES R CHINA
SN 1815-2406
EI 1991-7120
J9 COMMUN COMPUT PHYS
JI Commun. Comput. Phys.
PD NOV
PY 2014
VL 16
IS 5
BP 1263
EP 1297
DI 10.4208/cicp.070114.170614a
PG 35
WC Physics, Mathematical
SC Physics
GA AP4XZ
UT WOS:000342085000005
ER
PT J
AU Meng, D
Zheng, B
Lin, G
Sushko, ML
AF Meng, Da
Zheng, Bin
Lin, Guang
Sushko, Maria L.
TI Numerical Solution of 3D Poisson-Nernst-Planck Equations Coupled with
Classical Density Functional Theory for Modeling Ion and Electron
Transport in a Confined Environment
SO COMMUNICATIONS IN COMPUTATIONAL PHYSICS
LA English
DT Article
DE Poisson-Nernst-Planck equations; classical density functional theory;
algebraic multigrid method; fast Fourier transform; Li-ion battery
ID FUNDAMENTAL-MEASURE-THEORY; CHARGED HARD-SPHERES; FREE-ENERGY MODEL; I-V
RELATIONS; RYANODINE RECEPTOR; LI+/ELECTRON CONDUCTIVITY; ASYMPTOTIC
ANALYSIS; TIO2 NANOPARTICLES; DOUBLE-LAYERS; CHANNELS
AB We have developed efficient numerical algorithms for solving 3D steady-state Poisson-Nernst-Planck (PNP) equations with excess chemical potentials described by the classical density functional theory (cDFT). The coupled PNP equations are discretized by a finite difference scheme and solved iteratively using the Gummel method with relaxation. The Nernst-Planck equations are transformed into Laplace equations through the Slotboom transformation. Then, the algebraic multigrid method is applied to efficiently solve the Poisson equation and the transformed Nernst-Planck equations. A novel strategy for calculating excess chemical potentials through fast Fourier transforms is proposed, which reduces computational complexity from O(N-2) to O(N log N), where N is the number of grid points. Integrals involving the Dirac delta function are evaluated directly by coordinate transformation, which yields more accurate results compared to applying numerical quadrature to an approximated delta function. Numerical results for ion and electron transport in solid electrolyte for lithium-ion (Li-ion) batteries are shown to be in good agreement with the experimental data and the results from previous studies.
C1 [Meng, Da; Zheng, Bin; Lin, Guang; Sushko, Maria L.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Lin, Guang] Purdue Univ, Sch Mech Engn, Dept Math, W Lafayette, IN 47907 USA.
RP Sushko, ML (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM da.meng@pnnl.gov; bin.zheng@pnnl.gov; Guanglin@purdue.edu;
Maria.Sushko@pnnl.gov
RI Sushko, Maria/C-8285-2014
OI Sushko, Maria/0000-0002-7229-7072
FU Materials Synthesis and Simulation across Scales (MS3) Initiative
(Laboratory Directed Research and Development (LDRD) Program) at Pacific
Northwest National Laboratory (PNNL); U.S. Department of Energy (DOE)
Office of Science's Advanced Scientific Computing Research Applied
Mathematics program; Early Career Award Initiative (LDRD Program) at
PNNL; DOE [DE-AC05-76RL01830]
FX Work by MLS and DM was supported by the Materials Synthesis and
Simulation across Scales (MS3) Initiative (Laboratory Directed Research
and Development (LDRD) Program) at Pacific Northwest National Laboratory
(PNNL). Work by GL was supported by the U.S. Department of Energy (DOE)
Office of Science's Advanced Scientific Computing Research Applied
Mathematics program and work by BZ by Early Career Award Initiative
(LDRD Program) at PNNL. PNNL is operated by Battelle for the DOE under
Contract DE-AC05-76RL01830. The research was performed using PNNL
Institutional Computing, as well as the National Energy Research
Scientific Computing Center at Lawrence Berkeley National Laboratory.
NR 75
TC 8
Z9 8
U1 0
U2 25
PU GLOBAL SCIENCE PRESS
PI WANCHAI
PA ROOM 3208, CENTRAL PLAZA, 18 HARBOUR RD, WANCHAI, HONG KONG 00000,
PEOPLES R CHINA
SN 1815-2406
EI 1991-7120
J9 COMMUN COMPUT PHYS
JI Commun. Comput. Phys.
PD NOV
PY 2014
VL 16
IS 5
BP 1298
EP 1322
DI 10.4208/cicp.040913.120514a
PG 25
WC Physics, Mathematical
SC Physics
GA AP4XZ
UT WOS:000342085000006
ER
PT J
AU Xu, W
Sun, X
Koeppel, BJ
Zbib, HM
AF Xu, Wei
Sun, Xin
Koeppel, Brian J.
Zbib, Hussein M.
TI A continuum thermo-inelastic model for damage and healing in
self-healing glass materials
SO INTERNATIONAL JOURNAL OF PLASTICITY
LA English
DT Article
DE Thermomechanical processes; Constitutive behavior; Glass material;
Viscoelastic material; Self-healing
ID OXIDE FUEL-CELLS; CRACK-GROWTH; FABRIC TENSORS; DUCTILE DAMAGE;
THERMOMECHANICAL BEHAVIOR; AMORPHOUS MATERIALS; BOROSILICATE GLASS;
BRITTLE MATERIALS; ASPHALT CONCRETE; FINITE-ELEMENTS
AB Self-healing glass, a recent advancement in the class of smart sealing materials, has attracted great attention from both research and industrial communities because of its unique capability of repairing itself at elevated temperatures. However, further development and optimization of this material rely on a more fundamental and thorough understanding of its essential thermo-mechanical response characteristics, which is also pivotal in predicting the coupling and interactions between the nonlinear stress and temperature dependent damage and healing behaviors. In the current study, a continuum three-dimensional thermo-inelastic damage-healing constitutive framework has been developed for the compliant self-healing glass material with different damage mechanisms, i.e. micro-cracks and micro-pores, taken into account. The important feature of the present model is that different physically-driven evolution kinetics have been unified to represent the distinct inelastic, damage, and healing behaviors associated with the mechanical degradation processes. Coupled with the micro-crack and micro-void models reported in the literature, a continuum description of the healing behavior has been established based on the lower-length scale kinetic Monte Carlo simulations to characterize the local thermal-diffusional bond re-formation process across the fracture interface. The proposed formulations are implemented into finite element analyses and the effects of various loading conditions and material properties on the material's mechanical resistance are investigated. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Xu, Wei; Sun, Xin; Koeppel, Brian J.] Pacific NW Natl Lab, Richland, WA 99354 USA.
[Zbib, Hussein M.] Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA.
RP Xu, W (reprint author), Pacific NW Natl Lab, Richland, WA 99354 USA.
EM wei.xu@pnnl.gov
FU Solid-State-Energy Conversion Alliance Core Technology Program by the
U.S. Department of Energy's (DOE) National Energy Technology Laboratory;
DOE [DE-ACO5-76RL01830]
FX The work presented in the paper was funded as part of the
Solid-State-Energy Conversion Alliance Core Technology Program by the
U.S. Department of Energy's (DOE) National Energy Technology Laboratory.
Pacific Northwest National Laboratory is operated by Battelle for DOE
under Contract DE-ACO5-76RL01830.
NR 84
TC 2
Z9 2
U1 7
U2 77
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0749-6419
EI 1879-2154
J9 INT J PLASTICITY
JI Int. J. Plast.
PD NOV
PY 2014
VL 62
BP 1
EP 16
DI 10.1016/j.ijplas.2014.06.011
PG 16
WC Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
SC Engineering; Materials Science; Mechanics
GA AP7JO
UT WOS:000342253800001
ER
PT J
AU Bertin, N
Tome, CN
Beyerlein, IJ
Barnett, MR
Capolungo, L
AF Bertin, N.
Tome, C. N.
Beyerlein, I. J.
Barnett, M. R.
Capolungo, L.
TI On the strength of dislocation interactions and their effect on latent
hardening in pure Magnesium
SO INTERNATIONAL JOURNAL OF PLASTICITY
LA English
DT Article
DE Dislocations; Constitutive behaviour
ID SLIP SYSTEMS INTERACTIONS; CLOSE-PACKED METALS; CRYSTAL PLASTICITY;
DYNAMICS SIMULATIONS; CONSTITUTIVE MODEL; SINGLE-CRYSTALS; DEFORMATION;
MECHANISMS; TEMPERATURE; EVOLUTION
AB This study is dedicated to the quantification of latent hardening and its effect on the plasticity of pure hexagonal magnesium. To this end, discrete dislocation dynamics simulations are used to (1) extract latent hardening parameters coupling different slip systems, and to (2) assess the validity of two existing constitutive models linking slip system strength to dislocation densities on all slip systems. As hexagonal materials deform via activation of different slip modes, each with different mobilities and lattice friction stress, the effects of the latter on latent hardening evolution are also investigated. It is found that the multi-slip formulation proposed by Franciosi and Zaoui gives accurate predictions when multiple interactions are involved while the formulation suggested by Lavrentev and Pokhil systematically overestimates the flow stress. Similar to FCC materials, it is also found that collinear interactions potentially contribute the most to latent hardening. Basal/pyramidal < c + a > interactions are found to be very strong, while interactions involving second-order pyramidal < c + a > primary dislocations appear to be the weakest ones. Finally, the latent hardening parameters, extracted from the discrete dislocation dynamics simulations, are used in polycrystal simulations and the impact of finely accounting for latent hardening on predictions of the macroscopic anisotropic response is shown to be of significant importance. (C) 2014 Published by Elsevier Ltd.
C1 [Bertin, N.; Capolungo, L.] Georgia Inst Technol, George W Woodruff Sch Mech Engn, UMI Georgia Tech CNRS 2958, F-57070 Metz, France.
[Tome, C. N.] Los Alamos Natl Lab, MST Div, Los Alamos, NM 87545 USA.
[Beyerlein, I. J.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Barnett, M. R.] Deakin Univ, Inst Frontier Mat, Geelong, Vic 3217, Australia.
RP Capolungo, L (reprint author), Georgia Inst Technol, George W Woodruff Sch Mech Engn, UMI Georgia Tech CNRS 2958, F-57070 Metz, France.
EM laurent.capolungo@me.gatech.edu
RI Tome, Carlos/D-5058-2013; Beyerlein, Irene/A-4676-2011
FU Office of Basic Energy Sciences [FWP 06SCPE401]; French National
Research Agency (ANR) [MAGTWIN ANR-12-BS09-0010-02]
FX IJB and CNT acknowledge full support by Office of Basic Energy Sciences
(Project FWP 06SCPE401). NB and LC acknowledge partial support, and also
wish to thank the French National Research Agency (ANR) (Project MAGTWIN
ANR-12-BS09-0010-02). MB would like to acknowledge the Deakin University
Academic Studies Program, the ARC Future Fellowship scheme and the
"Chercheur d'Excellence" scheme of the Lorraine-Champagne Region.
NR 54
TC 31
Z9 31
U1 4
U2 54
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0749-6419
EI 1879-2154
J9 INT J PLASTICITY
JI Int. J. Plast.
PD NOV
PY 2014
VL 62
BP 72
EP 92
DI 10.1016/j.ijplas.2014.06.010
PG 21
WC Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
SC Engineering; Materials Science; Mechanics
GA AP7JO
UT WOS:000342253800005
ER
PT J
AU Knezevic, M
Beyerlein, IJ
Lovato, ML
Tome, CN
Richards, AW
McCabe, RJ
AF Knezevic, Marko
Beyerlein, Irene J.
Lovato, Manuel L.
Tome, Carlos N.
Richards, Andrew W.
McCabe, Rodney J.
TI A strain-rate and temperature dependent constitutive model for BCC
metals incorporating non-Schmid effects: Application to
tantalum-tungsten alloys
SO INTERNATIONAL JOURNAL OF PLASTICITY
LA English
DT Article
DE Microstructures; Non-Schmid effects; Constitutive behaviour;
Polycrystalline material; Electron microscopy
ID CRYSTAL PLASTICITY MODELS; HIGH-PURITY TANTALUM; SINGLE-CRYSTALS;
TEXTURE EVOLUTION; POLYCRYSTAL PLASTICITY; MECHANICAL RESPONSE; SCREW
DISLOCATIONS; PATH CHANGES; ANNEALED TANTALUM; RATE DEFORMATION
AB In this work, we present a multiscale physically based constitutive law for predicting the mechanical response and texture evolution of body-centered cubic (BCC) metals as a function of strain-rate and temperature. In the model, deformation of individual single crystals results not only from the resolved shear stress along the direction of slip (Schmid law) but also from shear stresses resolved along directions orthogonal to the slip direction as well as the three normal stress components (non-Schmid effects). We account for coupled Schmid and non-Schmid effects through the modification of the resolved shear stress for both 1/2 < 1(1) over bar 1 >{110} and 1/2 < 11(1) over bar >{112} slip systems and the modification of the slip resistance for 1/2 < 11(1) over bar >{112} slip systems. The single crystal model is implemented into a self-consistent homogenization scheme containing a hardening law for crystallographic slip. The hardening law is based on the evolution of dislocation densities that incorporates strain-rate and temperature effects through the Peierls stress, thermally activated recovery, dislocation substructure formation and dislocation interactions. The polycrystal model is calibrated and validated using a set of mechanical and texture data collected on a tantalum-tungsten alloy, Ta-10W, at temperatures ranging from 298 K to 673 K and strain-rates from 10(-3) s(-1) to 2400 s(-1). We show the model effectively captures the anisotropic hardening rate and texture evolution for all data using a single set of single-crystal hardening parameters. Comparisons between predictions and measured data allow us to discuss the role of slip on {110} and {112} in determining plasticity and texture evolution in Ta-10W. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Knezevic, Marko] Univ New Hampshire, Dept Mech Engn, Durham, NH 03824 USA.
[Beyerlein, Irene J.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Lovato, Manuel L.; Tome, Carlos N.; Richards, Andrew W.; McCabe, Rodney J.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
RP Knezevic, M (reprint author), Univ New Hampshire, Dept Mech Engn, 33 Acad Way,Kingsbury Hall,W119, Durham, NH 03824 USA.
EM marko.knezevic@unh.edu
RI Tome, Carlos/D-5058-2013; Beyerlein, Irene/A-4676-2011;
OI McCabe, Rodney /0000-0002-6684-7410
FU U.S. Department of Energy [DE-AC52-06NA25396]; Los Alamos National
Laboratory [236698-1]
FX The work was supported by the U.S. Department of Energy under Contract
No. DE-AC52-06NA25396. MK acknowledges subcontract, NO. 236698-1,
granted by Los Alamos National Laboratory to the University of New
Hampshire.
NR 76
TC 33
Z9 33
U1 9
U2 55
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0749-6419
EI 1879-2154
J9 INT J PLASTICITY
JI Int. J. Plast.
PD NOV
PY 2014
VL 62
BP 93
EP 104
DI 10.1016/j.ijplas.2014.07.007
PG 12
WC Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
SC Engineering; Materials Science; Mechanics
GA AP7JO
UT WOS:000342253800006
ER
PT J
AU Wu, W
Qiao, H
An, K
Guo, XQ
Wu, PD
Liaw, PK
AF Wu, Wei
Qiao, Hua
An, Ke
Guo, Xiaoqian
Wu, Peidong
Liaw, Peter K.
TI Investigation of deformation dynamics in a wrought magnesium alloy
SO INTERNATIONAL JOURNAL OF PLASTICITY
LA English
DT Article
DE Dynamics; Twinning; Crystal plasticity; Metallic material; Neutron
diffraction
ID SITU NEUTRON-DIFFRACTION; STRAIN-PATH CHANGES; TWINNING-DETWINNING
BEHAVIOR; TEXTURE EVOLUTION; INTERNAL STRAIN; MECHANICAL-PROPERTIES;
PLASTIC-DEFORMATION; INELASTIC BEHAVIOR; STRESS-RELAXATION; FATIGUE
BEHAVIOR
AB In the present research, the real-time in-situ neutron diffraction measurements under a continuous-loading condition and elastic-viscoplastic self-consistent (EVPSC) polycrystal modeling were employed to study the deformation dynamics and the effect of the deformation history on plastic deformation in a wrought magnesium alloy. The experimental results reveal that pre-deformation delays the activation of the tensile twinning during the subsequent compression, mainly resulting from the residual strains. Detwinning does not occur until the applied stress exceeds the tensile yield strength during the reverse loading. It is believed that the grain rotation plays an important role in the elastic region during the reverse loading. The EVPSC model, which has been recently updated by implementing the twinning and detwinning model, was employed to characterize the deformation mechanism during the strain-path changes. The simulation result predicts well the experimental observation from the real-time in-situ neutron diffraction measurements. The present study provides a new insight of the nature of deformation mechanisms in a hexagonal close-packed (HCP) structured polycrystalline wrought magnesium alloy, which has significant implications for future work on studying the deformation mechanisms of HCP-structured materials. Published by Elsevier Ltd.
C1 [Wu, Wei; Liaw, Peter K.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Wu, Wei; An, Ke] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA.
[Qiao, Hua; Guo, Xiaoqian; Wu, Peidong] McMaster Univ, Dept Mech Engn, Hamilton, ON L8S 4L7, Canada.
[Guo, Xiaoqian] China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Jiangsu, Peoples R China.
RP An, K (reprint author), Oak Ridge Natl Lab, Chem & Engn Mat Div, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM kean@ornl.gov; pliaw@utk.edu
RI An, Ke/G-5226-2011; Wu, Wei/G-3204-2014; Wu, Peidong/A-7009-2008
OI An, Ke/0000-0002-6093-429X; Wu, Wei/0000-0002-8596-9253;
FU Scientific User Facilities Division, Office of Basic Energy Sciences,
Department of Energy (DOE); Columbus McKinnon Corporation; Laboratory
Directed Research and Development (LDRD) project of ORNL; Natural
Sciences and Engineering Research Council of Canada (NSERC); China
Scholarship Council [201206420031]; State Key Development Program for
Basic Research of China [2013CB227900]; US National Science Foundation
[DMR-0909037, CMMI-0900271, CMMI-1100080]; DOE, Office of Fossil Energy,
National Energy Technology Laboratory [DE-FE-0008855, DE-FE-001194]
FX The research conducted at SNS, ORNL was sponsored by the Scientific User
Facilities Division, Office of Basic Energy Sciences, Department of
Energy (DOE). The authors appreciate beamline scientists and staff at
the VULCAN Engineering Diffractometer, SNS, ORNL for their kind help. WW
is grateful for the financial support from Columbus McKinnon Corporation
and a Laboratory Directed Research and Development (LDRD) project of
ORNL. HQ and PDW thank the support provided by the Natural Sciences and
Engineering Research Council of Canada (NSERC). XQG was supported by the
China Scholarship Council (No. 201206420031) and the State Key
Development Program for Basic Research of China (Grant No.
2013CB227900). PKL very much appreciates the financial support from the
US National Science Foundation (DMR-0909037, CMMI-0900271, and
CMMI-1100080) with C. Huber, C.V. Cooper, D. Finotello, A. Ardell, and
E. Taleff as contract monitors, and DOE, Office of Fossil Energy,
National Energy Technology Laboratory (DE-FE-0008855 and DE-FE-001194),
with Mr. V. Cedro and S. Markovich as program managers.
NR 79
TC 23
Z9 23
U1 9
U2 56
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0749-6419
EI 1879-2154
J9 INT J PLASTICITY
JI Int. J. Plast.
PD NOV
PY 2014
VL 62
BP 105
EP 120
DI 10.1016/j.ijplas.2014.07.005
PG 16
WC Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
SC Engineering; Materials Science; Mechanics
GA AP7JO
UT WOS:000342253800007
ER
PT J
AU Olson, GL
AF Olson, Gordon L.
TI Gray radiation transport models for two-dimensional binary stochastic
media with material temperature coupling using spherical harmonics
SO JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
LA English
DT Article
DE Stochastic media; Radiation transport; Gray transport; Spherical
harmonics
ID GREY; EQUATIONS
AB Due to the high computational cost of time-dependent radiation transport calculations, most multi-dimensional simulations of stochastic media have used the lowest angle order approximation, the Pi approximation. Here spherical harmonics of order n=5 are used to solve the transport equation in two-dimensional binary stochastic media. The results are consistent with earlier Pi simulations. Transport solutions using constant and temperature-dependent opacities and heat capacities are shown and analyzed. The standard closure poorly approximates the mean radiation field in these test problems. For one physical case, a less common closure is better. To best fit the most general cases, a new procedure is presented. In all cases, the approximate transport solutions work best in dilute systems where one material comprises less than about 10% of the total. The conclusions reached here should be independent of the transport solution method whether one uses spherical harmonics or discrete ordinates. Published by Elsevier Ltd.
C1 Los Alamos Natl Lab, Comp & Computat Sci Div CCS 2, Madison, WI 53717 USA.
RP Olson, GL (reprint author), Los Alamos Natl Lab, Comp & Computat Sci Div CCS 2, 5 Foxglove Circle, Madison, WI 53717 USA.
EM olson99gl@gmail.com
NR 14
TC 2
Z9 2
U1 2
U2 2
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0022-4073
EI 1879-1352
J9 J QUANT SPECTROSC RA
JI J. Quant. Spectrosc. Radiat. Transf.
PD NOV
PY 2014
VL 148
BP 127
EP 133
DI 10.1016/j.jqsrt.2014.07.002
PG 7
WC Optics; Spectroscopy
SC Optics; Spectroscopy
GA AP7JR
UT WOS:000342254100015
ER
PT J
AU Jin, HE
Farr, R
Lee, SW
AF Jin, Hyo-Eon
Farr, Rebecca
Lee, Seung-Wuk
TI Collagen mimetic peptide engineered M13 bacteriophage for collagen
targeting and imaging in cancer
SO BIOMATERIALS
LA English
DT Article
DE Collagen; Bacteriophage; Cancer; Targeting; Imaging
ID I COLLAGEN; MATRIX METALLOPROTEINASES; MAMMOGRAPHIC DENSITIES;
FILAMENTOUS PHAGE; BREAST-CANCER; TRIPLE-HELIX; PROGRESSION; BINDING;
VIVO; STREPTAVIDIN
AB Collagens are over-expressed in various human cancers and subsequently degraded and denatured by proteolytic enzymes, thus making them a target for diagnostics and therapeutics. Genetically engineered bacteriophage (phage) is a promising candidate for the development of imaging or therapeutic materials for cancer collagen targeting due to its promising structural features. We genetically engineered M13 phages with two functional peptides, collagen mimetic peptide and streptavidin binding peptide, on their minor and major coat proteins, respectively. The resulting engineered phage functions as a therapeutic or imaging material to target degraded and denatured collagens in cancerous tissues. We demonstrated that the engineered phages are able to target and label abnormal collagens expressed on A549 human lung adenocarcinoma cells after the conjugation with streptavidin-linked fluorescent agents. Our engineered collagen binding phage could be a useful platform for abnormal collagen imaging and drug delivery in various collagen-related diseases. Published by Elsevier Ltd.
C1 [Jin, Hyo-Eon; Farr, Rebecca; Lee, Seung-Wuk] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
[Jin, Hyo-Eon; Farr, Rebecca; Lee, Seung-Wuk] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Lee, SW (reprint author), Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
EM leesw@berkeley.edu
FU Basic Science Research Program through the National Research Foundation
of Korea (NRF) - Ministry of Education, Science and Technology
[NRF-2011-357-E00083]
FX H.E.J. was supported by Basic Science Research Program through the
National Research Foundation of Korea (NRF) funded by the Ministry of
Education, Science and Technology (NRF-2011-357-E00083).
NR 64
TC 11
Z9 12
U1 7
U2 54
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0142-9612
EI 1878-5905
J9 BIOMATERIALS
JI Biomaterials
PD NOV
PY 2014
VL 35
IS 33
BP 9236
EP 9245
DI 10.1016/j.biomaterials.2014.07.044
PG 10
WC Engineering, Biomedical; Materials Science, Biomaterials
SC Engineering; Materials Science
GA AO9KK
UT WOS:000341674400020
PM 25115789
ER
PT J
AU Jahed, Z
Molladavoodi, S
Seo, BB
Gorbet, M
Tsui, TY
Mofrad, MRK
AF Jahed, Zeinab
Molladavoodi, Sara
Seo, Brandon B.
Gorbet, Maud
Tsui, Ting Y.
Mofrad, Mohammad R. K.
TI Cell responses to metallic nanostructure arrays with complex geometries
SO BIOMATERIALS
LA English
DT Article
DE Nanopillar; Nanotopography sensing; Cell adhesion; Mechanotransduction
ID SILICON NANOWIRES; LIVING CELLS; FORCE; FILOPODIA; CIRCUITS; PLATFORM
AB Metallic nanopillar/nanowires are emerging as promising platforms for biological applications, as they allow for the direct characterization and regulation of cell function. Herein we study the response of cells to a versatile nanopillar platform. Nanopillar arrays of various shape, size, and spacing and different nanopillar-substrate interfacial strengths were fabricated and interfaced with fibroblasts and several unique cell-nanopillar interactions were observed using high resolution scanning electron microscopy. Nanopillar penetration, engulfment, tilting, lift off and membrane thinning, were observed by manipulating nanopillar material, size, shape and spacing. These unique cell responses to various nanostructures can be employed for a wide range of applications including the design of highly sensitive nano-electrodes for single-cell probing. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Jahed, Zeinab; Mofrad, Mohammad R. K.] Univ Calif Berkeley, Dept Bioengn & Mech Engn, Mol Cell Biomech Lab, Berkeley, CA 94720 USA.
[Molladavoodi, Sara; Seo, Brandon B.; Tsui, Ting Y.] Univ Waterloo, Dept Mech & Mech Engn, Waterloo, ON N2L 3G1, Canada.
[Gorbet, Maud] Univ Waterloo, Dept Syst Design Engn, Waterloo, ON N2L 3G1, Canada.
[Tsui, Ting Y.] Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada.
[Mofrad, Mohammad R. K.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Mofrad, MRK (reprint author), Univ Calif Berkeley, Dept Bioengn & Mech Engn, 208A Stanley Hall, Berkeley, CA 94720 USA.
EM tttsui@uwaterloo.ca; mofrad@berkeley.edu
FU Natural Sciences and Engineering Council of Canada, NSERC
[RGPIN-355552]; National Science Foundation via the CAREER award
[CBET-0955291]
FX The authors would like to thank the Natural Sciences and Engineering
Council of Canada, NSERC for their support of this research project
through Discovery and RTI grants (RGPIN-355552) as well as Graduate
Fellowships to ZJ. In addition, financial support through National
Science Foundation via the CAREER award (CBET-0955291) is gratefully
acknowledged. The authors gratefully acknowledge critical support and
infrastructure provided for this work by the Emerging Communications
Technology Institute at the University of Toronto. Fruitful discussions
with Kiavash Garakani and other members of the Molecular Cell
Biomechanics Lab at the University of California Berkeley are gratefully
acknowledged.
NR 26
TC 9
Z9 9
U1 3
U2 53
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0142-9612
EI 1878-5905
J9 BIOMATERIALS
JI Biomaterials
PD NOV
PY 2014
VL 35
IS 34
BP 9363
EP 9371
DI 10.1016/j.biomaterials.2014.07.022
PG 9
WC Engineering, Biomedical; Materials Science, Biomaterials
SC Engineering; Materials Science
GA AP2KO
UT WOS:000341901300012
PM 25123921
ER
PT J
AU Sun, ZY
Li, L
Fernandez, M
Wang, JH
AF Sun, Zeyi
Li, Lin
Fernandez, Mayela
Wang, Jianhui
TI Inventory control for peak electricity demand reduction of manufacturing
systems considering the tradeoff between production loss and energy
savings
SO JOURNAL OF CLEANER PRODUCTION
LA English
DT Article
DE Inventory control; Peak electricity demand; Electricity load management;
Tradeoff between production loss and energy savings
AB The effective reduction of the electricity consumption during peak periods plays a critical role in reducing the cost and improving the reliability of the operation of power grid. The unbalanced situation between the supply and the demand of the electricity during peak periods can be relieved. The need for installing and running some peaking power plants and associated power delivery infrastructure can be partially avoided. This paper proposes an analytical model focusing on the electricity load management aiming at reducing the electricity consumption during peak periods by buffer inventory control for the typical manufacturing systems with multiple machines and buffers. Compared with the previous research that is strictly under the constraint of the throughput of manufacturing systems, this research is advanced by considering the tradeoff between the penalty due to production loss and the benefit resulted from energy savings, and thus more load management options are available. The optimal load management actions and corresponding buffer inventory control policies for the whole system are identified by minimizing the summation of the buffer inventory holding cost, electricity consumption cost, and potential production loss penalty throughout the production horizon. A numerical case study based on an automotive assembly line is used to illustrate the effectiveness of the proposed method. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Sun, Zeyi; Li, Lin; Fernandez, Mayela] Univ Illinois, Dept Mech & Ind Engn, Chicago, IL 60607 USA.
[Wang, Jianhui] Argonne Natl Lab, Decis & Informat Sci Div, Ctr Energy Environm & Econ Syst Anal, Argonne, IL 60439 USA.
RP Li, L (reprint author), Univ Illinois, Dept Mech & Ind Engn, 842 W Taylor St,ERF 3057, Chicago, IL 60607 USA.
EM linli@uic.edu
OI sun, zeyi/0000-0003-0704-2708
NR 31
TC 8
Z9 8
U1 0
U2 17
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0959-6526
EI 1879-1786
J9 J CLEAN PROD
JI J. Clean Prod.
PD NOV 1
PY 2014
VL 82
BP 84
EP 93
DI 10.1016/j.jclepro.2014.06.071
PG 10
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Engineering, Environmental;
Environmental Sciences
SC Science & Technology - Other Topics; Engineering; Environmental Sciences
& Ecology
GA AO6OK
UT WOS:000341471200008
ER
PT J
AU Yue, YF
Guo, BK
Qiao, ZA
Fulvio, PF
Chen, JH
Binder, AJ
Tian, CC
Dai, S
AF Yue, Yanfeng
Guo, Bingkun
Qiao, Zhen-An
Fulvio, Pasquale F.
Chen, Jihua
Binder, Andrew J.
Tian, Chengcheng
Dai, Sheng
TI Multi-wall carbon nanotube@zeolite imidazolate framework composite from
a nanoscale zinc oxide precursor
SO MICROPOROUS AND MESOPOROUS MATERIALS
LA English
DT Article
DE Zeolitic imidazolate frameworks; Carbon nanotubes; ZnO nanoparticles;
Lithium-sulfur (Li-S) batteries
ID LITHIUM-SULFUR BATTERIES; METAL-ORGANIC FRAMEWORKS; CATHODE MATERIALS;
SHELL; ADSORPTION; SOLVENT; AMMONIA; ENERGY; FILMS
AB Nanocomposite of multi-walled carbon nanotube@zeolite imidazolate frameworks (MWNT@ZIF) was prepared through a nanotube-facilitated growth based on a nanosized ZnO precursor. The electrically conductive nanocomposite displays a capacity of 380 mAh/g at 0.1 degrees C in Li-sulfur battery, transforming electrically inactive ZIF into the active one for battery applications. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Yue, Yanfeng; Guo, Bingkun; Qiao, Zhen-An; Fulvio, Pasquale F.; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Chen, Jihua] Oak Ridge Natl Lab, Div Mat Sci, Ctr Nanophase, Oak Ridge, TN 37831 USA.
[Binder, Andrew J.; Tian, Chengcheng; Dai, Sheng] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Fulvio, Pasquale F.] Univ Puerto Rico, Dept Chem, San Juan, PR 00931 USA.
RP Fulvio, PF (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM fulviopf@ornl.gov; dais@ornl.gov
RI Chen, Jihua/F-1417-2011; Guo, Bingkun/J-5774-2014; Dai,
Sheng/K-8411-2015;
OI Chen, Jihua/0000-0001-6879-5936; Dai, Sheng/0000-0002-8046-3931; Qiao,
Zhen-An/0000-0001-6064-9360
FU U.S. Department of Energy's Office of Basic Energy Science, Division of
Materials Sciences and Engineering; Oak Ridge National Laboratory by the
Division of Scientific User Facilities, Office of Basic Energy Sciences,
U.S. Department of Energy
FX This research was supported by the U.S. Department of Energy's Office of
Basic Energy Science, Division of Materials Sciences and Engineering. A
portion of this research was conducted at the Center for Nanophase
Materials Sciences, which is sponsored at Oak Ridge National Laboratory
by the Division of Scientific User Facilities, Office of Basic Energy
Sciences, U.S. Department of Energy.
NR 47
TC 9
Z9 9
U1 11
U2 184
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1387-1811
EI 1873-3093
J9 MICROPOR MESOPOR MAT
JI Microporous Mesoporous Mat.
PD NOV 1
PY 2014
VL 198
BP 139
EP 143
DI 10.1016/j.micromeso.2014.07.026
PG 5
WC Chemistry, Applied; Chemistry, Physical; Nanoscience & Nanotechnology;
Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA AP2JW
UT WOS:000341899500018
ER
PT J
AU Mullen, MR
Spirig, JV
Hoy, J
Routbort, JL
Singh, D
Dutta, PK
AF Mullen, Max R.
Spirig, John V.
Hoy, Julia
Routbort, Jules L.
Singh, Dileep
Dutta, Prabir K.
TI Development of nanosized lanthanum strontium aluminum manganite as
electrodes for potentiometric oxygen sensor
SO SENSORS AND ACTUATORS B-CHEMICAL
LA English
DT Article
DE Electrochemical sensor; Oxygen; Potentiometric; YSZ; LSM; High
temperature
ID YTTRIA-STABILIZED ZIRCONIA; ELECTRICAL-CONDUCTIVITY; INTERNAL REFERENCE;
TETRAGONAL ZIRCONIA; CATHODE MATERIALS; PLASTIC-FLOW; CERAMICS; OXIDE;
DEFORMATION; TZP
AB Nanocrystalline La0.8Sr0.2Al0.9Mn0.1O3 (LSAM) was synthesized by a microwave-assisted citrate method, and characterized by electron microscopy and X-ray diffraction. Electrical behavior of LSAM was investigated by impedance spectroscopy and activation energy of conduction was obtained. Joining of sintered bodies of LSAM and yttria-stabilized tetragonal zirconia polycrystals (YTZP), an extensively studied oxygen ion conducting electrolyte, was examined by isostatic hot pressing methods. Characteristics of the joining region were evaluated with microprobe Raman spectroscopy, and products formed at the interface, primarily strontium zirconate, was confirmed by examination of high temperature chemical reaction between LSAM and YTZP powders. The electrical properties of the LSAM were exploited for development of a high temperature oxygen sensor in which LSAM functioned as the electrode and YTZP as electrolyte. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Mullen, Max R.; Spirig, John V.; Hoy, Julia; Dutta, Prabir K.] Ohio State Univ, Dept Chem, Columbus, OH 43210 USA.
[Routbort, Jules L.; Singh, Dileep] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Dutta, PK (reprint author), Ohio State Univ, Dept Chem, 100 West 18th Ave, Columbus, OH 43210 USA.
EM dutta@chemistry.ohio-state.edu
FU National Science Foundation [NSF-PFI 1318136]
FX The authors would like to express their gratitude to the National
Science Foundation (NSF-PFI 1318136) for support of this research.
NR 31
TC 1
Z9 1
U1 4
U2 28
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0925-4005
J9 SENSOR ACTUAT B-CHEM
JI Sens. Actuator B-Chem.
PD NOV
PY 2014
VL 203
BP 670
EP 676
DI 10.1016/j.snb.2014.07.027
PG 7
WC Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
SC Chemistry; Electrochemistry; Instruments & Instrumentation
GA AO6JB
UT WOS:000341455400088
ER
PT J
AU Aab, A
Abreu, P
Aglietta, M
Ahlers, M
Ahn, EJ
Albuquerque, IFM
Allekotte, I
Allen, J
Allison, P
Almela, A
Castillo, JA
Alvarez-Muniz, J
Batista, RA
Ambrosio, M
Aminaei, A
Anchordoqui, L
Andringa, S
Antictic, T
Aramo, C
Arqueros, F
Asorey, H
Assis, P
Aublin, J
Ave, M
Avenier, M
Avila, G
Badescu, AM
Barber, KB
Bardenet, R
Bauml, J
Baus, C
Beatty, JJ
Becker, KH
Bellido, JA
BenZvi, S
Berat, C
Bertou, X
Biermann, PL
Billoir, P
Blanco, F
Blanco, M
Bleve, C
Blumer, H
Bohacova, M
Boncioli, D
Bonifazi, C
Bonino, R
Borodai, N
Brack, J
Brancus, I
Brogueira, P
Brown, WC
Buchholz, P
Bueno, A
Buscemi, M
Caballero-Mora, KS
Caccianiga, B
Caccianiga, L
Candusso, M
Caramete, L
Caruso, R
Castellina, A
Cataldi, G
Cazon, L
Cester, R
Cheng, SH
Chiavassa, A
Chinellato, JA
Chudoba, J
Cilmo, M
Clay, RW
Cocciolo, G
Colalillo, R
Collica, L
Coluccia, MR
Conceicao, R
Contreras, F
Cooper, MJ
Coutu, S
Covault, CE
Criss, A
Cronin, J
Curutiu, A
Dallier, R
Daniel, B
Dasso, S
Daumiller, K
Dawson, BR
De Almeida, RM
De Domenico, M
de Jong, SJ
De La Vega, G
de Mello, WJM
Neto, JRTD
De Mitri, I
de Souza, V
de Vries, KD
del Peral, L
Deligny, O
Dembinski, H
Dhital, N
Di Giulio, C
Di Matteo, A
Diaz, JC
Castro, MLD
Diep, PN
Diogo, F
Dobrigkeit, C
Docters, W
D'Olivo, JC
Dong, PN
Dorofeev, A
dos Anjos, JC
Dova, MT
Ebr, J
Engel, R
Erdmann, M
Escobar, CO
Espadanal, J
Etchegoyen, A
Luis, PFS
Falcke, H
Fang, K
Farrar, G
Fauth, AC
Fazzini, N
Ferguson, AP
Fick, B
Figueira, JM
Filevich, A
Filipcic, A
Foerster, N
Fox, BD
Fracchiolla, CE
Fraenkel, ED
Fratu, O
Frohlich, U
Fuchs, B
Gaior, R
Gamarra, RF
Gambetta, S
Garcia, B
Roca, STG
Garcia-Gamez, D
Garcia-Pinto, D
Garilli, G
Bravo, AG
Gemmeke, H
Ghia, PL
Giammarchi, M
Giller, M
Gitto, J
Glaser, C
Glass, H
Albarracin, FG
Berisso, MG
Vitale, PFG
Goncalves, P
Gonzalez, JG
Gookin, B
Gorgi, A
Gorham, P
Gouffon, P
Grebe, S
Griffith, N
Grillo, AF
Grubb, TD
Guardincerri, Y
Guarino, F
Guedes, GP
Hansen, P
Harari, D
Harrison, TA
Harton, JL
Haungs, A
Hebbeker, T
Heck, D
Herve, AE
Hill, GC
Hojvat, C
Hollon, N
Holt, E
Homola, P
Horandel, JR
Horvath, P
Hrabovsky, M
Huber, D
Huege, T
Insolia, A
Isar, PG
Jansen, S
Jarne, C
Josebachuili, M
Kadija, K
Kambeitz, O
Kampert, KH
Karhan, P
Kasper, P
Katkov, I
Kegl, B
Keilhauer, B
Keivani, A
Kemp, E
Kieckhafer, RM
Klages, HO
Kleifges, M
Kleinfeller, J
Knapp, J
Krause, R
Krohm, N
Kromer, O
Kruppke-Hansen, D
Kuempel, D
Kunka, N
La Rosa, G
LaHurd, D
Latronico, L
Lauer, R
Lauscher, M
Lautridou, P
Le Coz, S
Leao, MSAB
Lebrun, D
Lebrun, P
de Oliveira, MAL
Letessier-Selvon, A
Lhenry-Yvon, I
Link, K
Lopez, R
Aguera, AL
Louedec, K
Bahilo, JL
Lu, L
Lucero, A
Ludwig, M
Lyberis, H
Maccarone, MC
Malacari, M
Maldera, S
Mailer, J
Mandat, D
Mantsch, P
Mariazzi, AG
Marin, V
Maris, IC
Falcon, HRM
Marsella, G
Martello, D
Martin, L
Martinez, H
Bravo, OM
Martraire, D
Meza, JJM
Mathes, HJ
Matthews, J
Matthews, JIG
Matthiae, G
Maurel, D
Maurizio, D
Mayotte, E
Mazur, PO
Medina, C
Medina-Tanco, G
Melissas, M
Melo, D
Menichetti, E
Menshikov, A
Messina, S
Meyhandan, R
Micanovic, S
Micheletti, MI
Middendorf, L
Minaya, IA
Miramonti, L
Mitrica, B
Molina-Bueno, L
Mollerach, S
Monasor, M
Ragaigne, DM
Montanet, F
Morales, B
Morello, C
Moreno, JC
Mostafa, M
Moura, CA
Muller, MA
Muller, G
Munchmeyer, M
Mussa, R
Navarra, G
Navarro, JL
Navas, S
Necesal, P
Nellen, L
Nelles, A
Neuser, J
Nhung, PT
Niechciol, M
Niemietz, L
Niggemann, T
Nitz, D
Nosek, D
Nozka, L
Oehlschlager, J
Olinto, A
Oliveira, M
Ortiz, M
Pacheco, N
Selmi-Dei, DP
Palatka, M
Pallotta, J
Palmieri, N
Parente, G
Parra, A
Pastor, S
Paul, T
Pech, M
Kala, JP
Pelayo, R
Pepe, IM
Perrone, L
Pesce, R
Petermann, E
Petrera, S
Petrolini, A
Petrov, Y
Piegaia, R
Pierog, T
Pieroni, P
Pimenta, M
Pirronello, V
Platino, M
Plum, M
Pontz, M
Porcelli, A
Preda, T
Privitera, P
Prouza, M
Quel, EJ
Querchfeld, S
Quinn, S
Rautenberg, J
Ravel, O
Ravignani, D
Revenu, B
Ridky, J
Riggi, S
Risse, M
Ristori, P
Rivera, H
Rizi, V
Roberts, J
de Carvalho, WR
Cabo, IR
Fernandez, GR
Martino, JR
Rojo, JR
Rodriguez-Frias, MD
Ros, G
Rosado, J
Rossler, T
Roth, M
Rouille-d'Orfeuil, B
Roulet, E
Rovero, AC
Ruhle, C
Saffi, SJ
Saftoiu, A
Salamida, F
Salazar, H
Greus, FS
Salina, G
Sanchez, F
Sanchez-Lucas, P
Santo, CE
Santos, E
Santos, EM
Sarazin, F
Sarkar, B
Sarmento, R
Sato, R
Scharf, N
Scherini, V
Schieler, H
Schiffer, P
Schmidt, A
Scholten, O
Schoorlemmer, H
Schovanek, P
Schroder, FG
Schulz, A
Schulz, J
Sciutto, SJ
Scuderi, M
Segreto, A
Settimo, M
Shadkam, A
Shellard, RC
Sidelnik, I
Sigl, G
Sima, O
Smialkowski, A
Smida, R
Snow, GR
Sommers, P
Sorokin, J
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del Peral, L.
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Dobrigkeit, C.
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Stapleton, J.
Stasielak, J.
Stephan, M.
Straub, M.
Stutz, A.
Suarez, F.
Suomijarvi, T.
Supanitsky, A. D.
Susa, T.
Sutherland, M. S.
Swain, J.
Szadkowski, Z.
Szuba, M.
Tapia, A.
Tartare, M.
Tascau, O.
Thao, N. T.
Tiffenberg, J.
Timmermans, C.
Tkaczyk, W.
Peixoto, C. J. Todero
Toma, G.
Tomankova, L.
Tome, B.
Tonachini, A.
Elipe, G. Torralba
Machado, D. Torres
Travnicek, P.
Tridapalli, D. B.
Trovato, E.
Tueros, M.
Ulrich, R.
Unger, M.
Galicia, J. F. Valdes
Valino, I.
Valore, L.
van Aar, G.
van den Berg, A. M.
van Velzen, S.
van Vliet, A.
Varela, E.
Cardenas, B. Vargas
Varner, G.
Vazquez, J. R.
Vazquez, R. A.
Veberic, D.
Verzi, V.
Vicha, J.
Videla, M.
Villasenor, L.
Wahlberg, H.
Wahrlich, P.
Wainberem, O.
Walz, D.
Watson, A. A.
Weber, M.
Weidenhaupt, K.
Weindl, A.
Werner, F.
Westerhoff, S.
Whelan, B. J.
Widom, A.
Wieczorek, G.
Wiencke, L.
Wilczynska, B.
Wilczynski, H.
Will, M.
Williams, C.
Winchen, T.
Wundheiler, B.
Wykes, S.
Yamamoto, T.
Yapici, T.
Younk, P.
Yuan, G.
Yushkov, A.
Zamorano, B.
Zas, E.
Zavrtanik, D.
Zavrtanik, M.
Zaw, I.
Zepeda, A.
Zhou, J.
Zhu, Y.
Silva, M. Zimbres
Ziolkowski, M.
Curci, G.
CA Pierre Auger Collaborat
TI Origin of atmospheric aerosols at the Pierre Auger Observatory using
studies of air mass trajectories in South America
SO ATMOSPHERIC RESEARCH
LA English
DT Article
DE Cosmic ray; Aerosol; Air masses; Atmospheric effect; HYSPLIT; GDAS
ID CONCENTRATION DISTRIBUTIONS; OPTICAL DEPTH; TRANSPORT; SYSTEM; CHILE
AB The Pierre Auger Observatory is making significant contributions towards understanding the nature and origin of ultra-high energy cosmic rays. One of its main challenges is the monitoring of the atmosphere, both in terms of its state variables and its optical properties. The aim of this work is to analyse aerosol optical depth tau(a)(z) values measured from 2004 to 2012 at the observatory, which is located in a remote and relatively unstudied area of Pampa Amarilla, Argentina. The aerosol optical depth is in average quite low - annual mean tau(a)(3.5 km) similar to 0.04 - and shows a seasonal trend with a winter minimum - tau(a)(3.5 km) - 0.03 -, and a summer maximum - tau(a)(3.5 km) similar to 0.06 -, and an unexpected increase from August to September tau(a)(35 km) similar to 0.055. We computed backward trajectories for the years 2005 to 2012 to interpret the air mass origin. Winter nights with low aerosol concentrations show air masses originating from the Pacific Ocean. Average concentrations are affected by continental sources (wind-blown dust and urban pollution), whilst the peak observed in September and October could be linked to biomass burning in the northern part of Argentina or air pollution coming from surrounding urban areas. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Pierre Auger Collaborat] Observ Pierre Auger, RA-5613 Malargue, Argentina.
[Curci, G.] Univ Aquila, CETEMPS, Dept Phys, I-67100 Laquila, Italy.
[Allekotte, I.; Asorey, H.; Berat, C.; Berisso, M. Gomez; Harari, D.; Mollerach, S.; Roulet, E.; Sidelnik, I.] UNCuyo, CONICET, CNEA, Ctr Atom Bariloche, San Carlos De Bariloche, Rio Negro, Argentina.
[Allekotte, I.; Asorey, H.; Berat, C.; Berisso, M. Gomez; Harari, D.; Mollerach, S.; Roulet, E.; Sidelnik, I.] UNCuyo, CONICET, CNEA, Inst Balseiro, San Carlos De Bariloche, Rio Negro, Argentina.
[Pallotta, J.; Quel, E. J.; Ristori, P.] CITEDEF, Ctr Invest Laseres Aplicac, Buenos Aires, DF, Argentina.
[Pallotta, J.; Quel, E. J.; Ristori, P.] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina.
Univ Buenos Aires, FCEyN, Dept Fis, RA-1053 Buenos Aires, DF, Argentina.
Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina.
[Dova, M. T.; Albarracin, F. Gomez; Hansen, P.; Jarne, C.; Mariazzi, A. G.; Moreno, J. C.; Sciutto, S. J.; Wahlberg, H.] Univ Nacl La Plata, IFLP, La Plata, Argentina.
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[Dasso, S.; Rovero, A. C.; Supanitsky, A. D.] UBA, CONICET, Inst Astron & Fis Espacio, Buenos Aires, DF, Argentina.
[Micheletti, M. I.] UNR, CONICET, Inst Fis Rosario IFIR, Rosario, Argentina.
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[Guedes, G. P.] Univ Estadual Feira de Santana, Feira De Santana, Brazil.
[Pepe, I. M.] Univ Fed Bahia, Salvador, BA, Brazil.
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[De Almeida, R. M.] Univ Fed Fluminense, EEIMVR, Volta Redonda, RJ, Brazil.
[Antictic, T.; Kadija, K.; Micanovic, S.; Susa, T.] Rudjer Boskovic Inst, Zagreb 10000, Croatia.
[Karhan, P.; Nosek, D.] Charles Univ Prague, Fac Math & Phys, Inst Particle & Nucl Phys, Prague, Czech Republic.
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[Horvath, P.; Hrabovsky, M.; Rossler, T.] Palacky Univ, RCPTM, CR-77147 Olomouc, Czech Republic.
[Deligny, O.; Dong, P. N.; Lhenry-Yvon, I.; Martraire, D.; Salamida, F.; Suomijarvi, T.] Univ Paris 11, CNRS, IN2P3, IPNO, F-91405 Orsay, France.
[Bardenet, R.; Garcia-Gamez, D.; Kegl, B.; Ragaigne, D. Monnier] Univ Paris 11, CNRS, IN2P3, LAL, Orsay, France.
[Aublin, J.; Billoir, P.; Blanco, M.; Caccianiga, L.; Gaior, R.; Ghia, P. L.; Letessier-Selvon, A.; Maris, I. C.; Munchmeyer, M.; Settimo, M.] Univ Paris 06, LPNHE, Paris, France.
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[Avenier, M.; BenZvi, S.; Le Coz, S.; Lebrun, D.; Louedec, K.; Montanet, F.; Stutz, A.; Tartare, M.] Univ Grenoble 1, CNRS, IN2P3, Grenoble INP,LPSC, F-38041 Grenoble, France.
[Dallier, R.; Martin, L.] Observ Paris, CNRS, INSU, Stn Radioastron Nancay, Paris, France.
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[Aab, A.; Erdmann, M.; Glaser, C.; Hebbeker, T.; Krause, R.; Kuempel, D.; Lauscher, M.; Middendorf, L.; Mueller, G.; Niggemann, T.; Plum, M.; Scharf, N.; Stephan, M.; Straub, M.; Walz, D.; Weidenhaupt, K.; Winchen, T.] Rhein Westfal TH Aachen, Physikal Inst A 3, Aachen, Germany.
[Batista, R. Alves; Schiffer, P.; Sigl, G.; van Vliet, A.] Univ Hamburg, Hamburg, Germany.
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[Gambetta, S.; Pesce, R.; Petrolini, A.] Dipartimento Fis Univ, Genoa, Italy.
[Gambetta, S.; Pesce, R.; Petrolini, A.] Ist Nazl Fis Nucl, I-16146 Genoa, Italy.
[Di Matteo, A.; Petrera, S.; Rizi, V.] Univ Aquila, I-67100 Laquila, Italy.
[Di Matteo, A.; Petrera, S.; Rizi, V.] Ist Nazl Fis Nucl, Laquila, Italy.
[Caccianiga, B.; Collica, L.; Giammarchi, M.; Miramonti, L.; Rivera, H.] Univ Milan, Milan, Italy.
[Caccianiga, B.; Collica, L.; Giammarchi, M.; Miramonti, L.; Rivera, H.] Sezione Ist Nazl Fis Nucl, Milan, Italy.
[Ambrosio, M.; Aramo, C.; Buscemi, M.; Cilmo, M.; Colalillo, R.; Guarino, F.; Valore, L.] Univ Naples Federico II, Naples, Italy.
[Ambrosio, M.; Aramo, C.; Buscemi, M.; Cilmo, M.; Colalillo, R.; Guarino, F.; Valore, L.] Sezione Ist Nazl Fis Nucl, Naples, Italy.
[Candusso, M.; Di Giulio, C.; Matthiae, G.; Fernandez, G. Rodriguez; Salina, G.; Verzi, V.] Univ Roma Tor Vergata, I-00173 Rome, Italy.
[Candusso, M.; Di Giulio, C.; Matthiae, G.; Fernandez, G. Rodriguez; Salina, G.; Verzi, V.] Sezione Ist Nazl Fis Nucl, Rome, Italy.
[Caruso, R.; De Domenico, M.; Garilli, G.; Insolia, A.; Pirronello, V.; Scuderi, M.; Trovato, E.] Univ Catania, Catania, Italy.
[Caruso, R.; De Domenico, M.; Garilli, G.; Insolia, A.; Pirronello, V.; Scuderi, M.; Trovato, E.] Sezione Ist Nazl Fis Nucl, Catania, Italy.
[Cester, R.; Menichetti, E.; Mussa, R.; Tonachini, A.] Univ Turin, Turin, Italy.
[Aglietta, M.; Bonino, R.; Castellina, A.; Cester, R.; Chiavassa, A.; Gorgi, A.; Latronico, L.; Maldera, S.; Menichetti, E.; Mussa, R.; Navarra, G.; Tonachini, A.] Sezione Ist Nazl Fis Nucl, Turin, Italy.
[Cataldi, G.; Cocciolo, G.; Coluccia, M. R.; De Mitri, I.; Marsella, G.; Martello, D.; Perrone, L.; Scherini, V.] Univ Salento, Dipartimento Matemat & Fis E De Giorgi, Lecce, Italy.
[Aab, A.; Cataldi, G.; Cocciolo, G.; Coluccia, M. R.; De Mitri, I.; Marsella, G.; Martello, D.; Perrone, L.; Scherini, V.] Sezione Ist Nazl Fis Nucl, Lecce, Italy.
[La Rosa, G.; Maccarone, M. C.; Riggi, S.; Segreto, A.] Ist Astrofis Spaziale Fis Cosm Palermo INAF, Palermo, Italy.
[Boncioli, D.; Grillo, A. F.] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, Laquila, Italy.
[Aglietta, M.; Bonino, R.; Castellina, A.; Chiavassa, A.; Gorgi, A.; Latronico, L.; Maldera, S.; Navarra, G.] Univ Turin, Osservatorio Astron Torino INAF, Turin, Italy.
[Lopez, R.; Bravo, O. Martinez; Morello, C.; Pelayo, R.; Salazar, H.; Varela, E.] Benemerita Univ Autonoma Puebla, Puebla, Mexico.
[Martinez, H.; Zepeda, A.] Ctr Invest Estudios Avanzados IPN CINVESTAV, Mexico City, DF, Mexico.
[Falcon, H. R. Marquez; Villasenor, L.] Univ Michoacana, Morelia, Michoacan, Mexico.
[Castillo, J. Alvarez; D'Olivo, J. C.; Medina-Tanco, G.; Morales, B.; Nellen, L.; Galicia, J. F. Valdes; Cardenas, B. Vargas] Univ Nacl Autonoma Mexico, Mexico City, DF, Mexico.
[Aminaei, A.; de Jong, S. J.; Falcke, H.; Grebe, S.; Horandel, J. R.; Jansen, S.; Nelles, A.; Schoorlemmer, H.; Schulz, J.; Timmermans, C.; van Aar, G.; van Velzen, S.; Wykes, S.] Radboud Univ Nijmegen, IMAPP, NL-6525 ED Nijmegen, Netherlands.
[de Vries, K. D.; Docters, W.; Fraenkel, E. D.; Messina, S.; Scholten, O.; van den Berg, A. M.] Univ Groningen, Kemfys Versneller Inst, Groningen, Netherlands.
[de Jong, S. J.; Falcke, H.; Grebe, S.; Horandel, J. R.; Jansen, S.; Nelles, A.; Schoorlemmer, H.; Timmermans, C.] Nikhef, Amsterdam, Netherlands.
[Falcke, H.] ASTRON, Dwingeloo, Netherlands.
[Borodai, N.; Homola, P.; Kala, J. P.; Stasielak, J.; Wilczynska, B.; Wilczynski, H.] Inst Nucl Phys PAN, Krakow, Poland.
[Giller, M.; Smialkowski, A.; Szadkowski, Z.; Tkaczyk, W.; Wieczorek, G.] Univ Lodz, PL-90131 Lodz, Poland.
[Abreu, P.; Andringa, S.; Assis, P.; Brogueira, P.; Cazon, L.; Conceicao, R.; Diogo, F.; Espadanal, J.; Goncalves, P.; Oliveira, M.; Pimenta, M.; Santo, C. E.; Santos, E.; Sarmento, R.; Tome, B.] Univ Tecn Lisboa, LIP, Lisbon, Portugal.
[Abreu, P.; Andringa, S.; Assis, P.; Brogueira, P.; Cazon, L.; Conceicao, R.; Diogo, F.; Espadanal, J.; Goncalves, P.; Oliveira, M.; Pimenta, M.; Santo, C. E.; Santos, E.; Sarmento, R.; Tome, B.] Univ Tecn Lisboa, Inst Super Tecn, Lisbon, Portugal.
[Brancus, I.; Mitrica, B.; Saftoiu, A.; Toma, G.] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania.
[Isar, P. G.; Preda, T.] Inst Space Sci, Bucharest, Romania.
[Sima, O.] Univ Bucharest, Dept Phys, Bucharest, Romania.
[Badescu, A. M.; Fratu, O.] Univ Politehn Bucuresti, Bucharest, Romania.
[Filipcic, A.; Veberic, D.; Zavrtanik, D.; Zavrtanik, M.] J Stefan Inst, Ljubljana, Slovenia.
[Filipcic, A.; Stanic, S.; Veberic, D.; Zavrtanik, D.; Zavrtanik, M.] Univ Nova Gorica, Lab Astroparticle Phys, Pristava, Slovenia.
[Pastor, S.] Univ Valencia, CSIC, Inst Fis Corpuscular, Valencia, Spain.
[Arqueros, F.; Blanco, F.; Garcia-Pinto, D.; Minaya, I. A.; Ortiz, M.; Rosado, J.; Vazquez, J. R.] Univ Complutense Madrid, Madrid, Spain.
[del Peral, L.; Navas, S.; Pacheco, N.; Rodriguez-Frias, M. D.; Ros, G.] Univ Alcala de Henares, E-28801 Alcala De Henares, Madrid, Spain.
[Bueno, A.; Bravo, A. Gascon; Bahilo, J. Lozano; Molina-Bueno, L.; Navarro, J. L.; Sanchez-Lucas, P.; Zamorano, B.] Univ Granada, Granada, Spain.
[Bueno, A.; Bravo, A. Gascon; Bahilo, J. Lozano; Molina-Bueno, L.; Navarro, J. L.; Sanchez-Lucas, P.; Zamorano, B.] CAFPE, Granada, Spain.
[Alvarez-Muniz, J.; Ave, M.; Caballero-Mora, K. S.; Roca, S. T. Garcia; Aguera, A. Lopez; Parente, G.; Parra, A.; Riggi, S.; de Carvalho, W. Rodrigues; Cabo, I. Rodriguez; Fernandez, G. Rodriguez; Elipe, G. Torralba; Tueros, M.; Valino, I.; Vazquez, R. A.; Yushkov, A.; Zas, E.] Univ Santiago de Compostela, Santiago De Compostela, Spain.
[Knapp, J.; Lu, L.; Watson, A. A.] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England.
[Spinka, H.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Covault, C. E.; Ferguson, A. P.; LaHurd, D.; Quinn, S.] Case Western Reserve Univ, Cleveland, OH 44106 USA.
[Mayotte, E.; Medina, C.; Sarazin, F.; Wiencke, L.] Colorado Sch Mines, Golden, CO 80401 USA.
[Brack, J.; Dorofeev, A.; Fracchiolla, C. E.; Gookin, B.; Harton, J. L.; Petrov, Y.; Greus, F. Salesa] Colorado State Univ, Ft Collins, CO 80523 USA.
[Brown, W. C.] Colorado State Univ, Pueblo, CO USA.
[Ahn, E. J.; Escobar, C. O.; Fazzini, N.; Glass, H.; Hojvat, C.; Kasper, P.; Lebrun, P.; Mantsch, P.; Mazur, P. O.; Mostafa, M.; Spinka, H.] Fermilab Natl Accelerator Lab, Batavia, IL USA.
[Younk, P.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Keivani, A.; Matthews, J.; Shadkam, A.; Sutherland, M. S.; Yuan, G.] Louisiana State Univ, Baton Rouge, IA USA.
[Dhital, N.; Diaz, J. C.; Fick, B.; Kieckhafer, R. M.; Nitz, D.; Yapici, T.] Michigan Technol Univ, Houghton, MI 49931 USA.
[Allen, J.; Farrar, G.; Roberts, J.; Zaw, I.] NYU, New York, NY USA.
[Paul, T.; Srivastava, Y. N.; Swain, J.; Widom, A.] Northeastern Univ, Boston, MA 02115 USA.
[Allison, P.; Baus, C.; Griffith, N.; Stapleton, J.] Ohio State Univ, Columbus, OH 43210 USA.
[Caballero-Mora, K. S.; Cheng, S. H.; Coutu, S.; Criss, A.; Sommers, P.; Whelan, B. J.] Penn State Univ, University Pk, PA 16802 USA.
[Cronin, J.; Luis, P. Facal San; Fang, K.; Hollon, N.; Monasor, M.; Olinto, A.; Privitera, P.; Rouille-d'Orfeuil, B.; Williams, C.; Yamamoto, T.; Zhou, J.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Fox, B. D.; Gorham, P.; Meyhandan, R.; Schoorlemmer, H.; Varner, G.] Univ Hawaii, Honolulu, HI 96822 USA.
[Petermann, E.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA.
[Lauer, R.; Matthews, J. I. G.] Univ New Mexico, Albuquerque, NM 87131 USA.
[Ahlers, M.; Bellido, J. A.; Westerhoff, S.] Univ Wisconsin, Madison, WI USA.
[Anchordoqui, L.; Paul, T.] Univ Wisconsin, Milwaukee, WI 53201 USA.
[Diep, P. N.; Dong, P. N.; Nhung, P. T.; Thao, N. T.] Inst Nucl Sci & Technol, Hanoi, Vietnam.
[Knapp, J.] Univ Autonoma Chiapas, Chiapas, Mexico.
RP Aab, A (reprint author), Univ Siegen, D-57068 Siegen, Germany.
RI Pastor, Sergio/J-6902-2014; Badescu, Alina/B-6087-2012; Torralba Elipe,
Guillermo/A-9524-2015; Chinellato, Jose Augusto/I-7972-2012; Pech,
Miroslav/G-5760-2014; Albuquerque, Ivone/H-4645-2012; Parente,
Gonzalo/G-8264-2015; Caramete, Laurentiu/C-2328-2011; Alves Batista,
Rafael/K-6642-2012; Horvath, Pavel/G-6334-2014; Sima,
Octavian/C-3565-2011; dos Santos, Eva/N-6351-2013; Alvarez-Muniz,
Jaime/H-1857-2015; de souza, Vitor/D-1381-2012; Rosado,
Jaime/K-9109-2014; Valino, Ines/J-8324-2012; Garcia Pinto,
Diego/J-6724-2014; Navas, Sergio/N-4649-2014; Espadanal,
Joao/I-6618-2015; Di Giulio, Claudio/B-3319-2015; Vazquez, Jose
Ramon/K-2272-2015; Insolia, Antonio/M-3447-2015; Ros,
German/L-4764-2014; Petrolini, Alessandro/H-3782-2011; de Mello Neto,
Joao/C-5822-2013; Brogueira, Pedro/K-3868-2012; scuderi,
mario/O-7019-2014; zas, enrique/I-5556-2015; Chinellato, Carola
Dobrigkeit /F-2540-2011; Curci, Gabriele/A-2020-2011; Arqueros,
Fernando/K-9460-2014; Moura Santos, Edivaldo/K-5313-2016; Gouffon,
Philippe/I-4549-2012; de Almeida, Rogerio/L-4584-2016; Fauth,
Anderson/F-9570-2012; De Domenico, Manlio/B-5826-2014; Todero Peixoto,
Carlos Jose/G-3873-2012; Abreu, Pedro/L-2220-2014; Sao Carlos Institute
of Physics, IFSC/USP/M-2664-2016; Assis, Pedro/D-9062-2013; Blanco,
Francisco/F-1131-2015; Cazon, Lorenzo/G-6921-2014; Conceicao,
Ruben/L-2971-2014; Bueno, Antonio/F-3875-2015; Beatty,
James/D-9310-2011; Guarino, Fausto/I-3166-2012; Colalillo,
Roberta/R-5088-2016; Buscemi, Mario/R-5071-2016; Bonino,
Raffaella/S-2367-2016; Rodriguez Frias, Maria /A-7608-2015; Inst. of
Physics, Gleb Wataghin/A-9780-2017; De Mitri, Ivan/C-1728-2017; Mitrica,
Bogdan/D-5201-2009; Rodriguez Fernandez, Gonzalo/C-1432-2014; Nosek,
Dalibor/F-1129-2017; Lozano Bahilo, Julio/F-4881-2016; Pimenta,
Mario/M-1741-2013; Ridky, Jan/H-6184-2014; Martello,
Daniele/J-3131-2012;
OI Torralba Elipe, Guillermo/0000-0001-8738-194X; Chinellato, Jose
Augusto/0000-0002-3240-6270; Albuquerque, Ivone/0000-0001-7328-0136;
Parente, Gonzalo/0000-0003-2847-0461; Alves Batista,
Rafael/0000-0003-2656-064X; Horvath, Pavel/0000-0002-6710-5339; dos
Santos, Eva/0000-0002-0474-8863; Alvarez-Muniz,
Jaime/0000-0002-2367-0803; Rosado, Jaime/0000-0001-8208-9480; Valino,
Ines/0000-0001-7823-0154; Garcia Pinto, Diego/0000-0003-1348-6735;
Navas, Sergio/0000-0003-1688-5758; Espadanal, Joao/0000-0002-1301-8061;
Di Giulio, Claudio/0000-0002-0597-4547; Vazquez, Jose
Ramon/0000-0001-9217-5219; Insolia, Antonio/0000-0002-9040-1566; Ros,
German/0000-0001-6623-1483; Petrolini, Alessandro/0000-0003-0222-7594;
de Mello Neto, Joao/0000-0002-3234-6634; Brogueira,
Pedro/0000-0001-6069-4073; scuderi, mario/0000-0001-9026-5317; zas,
enrique/0000-0002-4430-8117; Chinellato, Carola Dobrigkeit
/0000-0002-1236-0789; Curci, Gabriele/0000-0001-9871-5570; Arqueros,
Fernando/0000-0002-4930-9282; Moura Santos,
Edivaldo/0000-0002-2818-8813; Gouffon, Philippe/0000-0001-7511-4115; de
Almeida, Rogerio/0000-0003-3104-2724; Fauth,
Anderson/0000-0001-7239-0288; De Domenico, Manlio/0000-0001-5158-8594;
Todero Peixoto, Carlos Jose/0000-0003-3669-8212; Abreu,
Pedro/0000-0002-9973-7314; Assis, Pedro/0000-0001-7765-3606; Blanco,
Francisco/0000-0003-4332-434X; Cazon, Lorenzo/0000-0001-6748-8395;
Conceicao, Ruben/0000-0003-4945-5340; Bueno,
Antonio/0000-0002-7439-4247; Beatty, James/0000-0003-0481-4952; Guarino,
Fausto/0000-0003-1427-9885; Colalillo, Roberta/0000-0002-4179-9352;
Buscemi, Mario/0000-0003-2123-5434; Rodriguez Frias, Maria
/0000-0002-2550-4462; De Mitri, Ivan/0000-0002-8665-1730; Rodriguez
Fernandez, Gonzalo/0000-0002-4683-230X; Nosek,
Dalibor/0000-0001-6219-200X; Asorey, Hernan/0000-0002-4559-8785; de
Jong, Sijbrand/0000-0002-3120-3367; Sigl, Guenter/0000-0002-4396-645X;
Cataldi, Gabriella/0000-0001-8066-7718; La Rosa,
Giovanni/0000-0002-3931-2269; Navarro Quirante, Jose
Luis/0000-0002-9915-1735; Lozano Bahilo, Julio/0000-0003-0613-140X;
Pimenta, Mario/0000-0002-2590-0908; Mantsch, Paul/0000-0002-8382-7745;
Salamida, Francesco/0000-0002-9306-8447; Ridky, Jan/0000-0001-6697-1393;
Segreto, Alberto/0000-0001-7341-6603; Aglietta,
Marco/0000-0001-8354-5388; Maccarone, Maria
Concetta/0000-0001-8722-0361; Kothandan, Divay/0000-0001-9048-7518;
Castellina, Antonella/0000-0002-0045-2467; maldera,
simone/0000-0002-0698-4421; Yuan, Guofeng/0000-0002-1907-8815; Sarmento,
Raul/0000-0002-5018-5467; Aramo, Carla/0000-0002-8412-3846; Knapp,
Johannes/0000-0003-1519-1383; Martello, Daniele/0000-0003-2046-3910;
Petrera, Sergio/0000-0002-6029-1255; Mussa, Roberto/0000-0002-0294-9071;
Ulrich, Ralf/0000-0002-2535-402X; Garcia, Beatriz/0000-0003-0919-2734;
Dembinski, Hans/0000-0003-3337-3850; Del Peral,
Luis/0000-0003-2580-5668; Coutu, Stephane/0000-0003-2923-2246; Rizi,
Vincenzo/0000-0002-5277-6527; Ravignani, Diego/0000-0001-7410-8522;
Matthews, James/0000-0002-1832-4420; Marsella,
Giovanni/0000-0002-3152-8874; Bonino, Raffaella/0000-0002-4264-1215
FU Italian Space Agency (ASI); Comision Nacional de Energia Atomica;
Gobierno de Argentina, Fundacion Antorchas; Gobierno De La Provincia de
Mendoza; Municipalidad de Malargile; NDM Holdings and Valle Las Lenas;
Australian Research Council; Conselho Nacional de Desenvolvimento
Cientifico e Tecnologico (CNPq); Financiadora de Estudos e Projetos
(FINEP); Fundacao de Amparo a Pesquisa do Estado de Rio de Janeiro
(FAPERJ); Sao Paulo Research Foundation (FAPFSP) [2010/07359-6,
1999/05404-3]; Ministerio de Ciencia e Tecnologia (MCT), Brazil; AVCR,
Czech Republic; MSMT-CR, Czech Republic [LG13007, 7AMB12AR013,
MSM0021620859]; TACR, Czech Republic [TA01010517]; Centre de Calcul
[IN2P3/CNRS]; Centre National de la Recherche Scientifique (CNRS);
Conseil Regional Ile-de-France; Departement Physique Nucleaire et
Corpusculaire [PNC-IN2P3/CNRS]; Departement Sciences de l'Univers
(SDU-INSU/CNRS), France; Bundesministerium fur Bildung und Forschung
(BMBF); Deutsche Forschungsgemeinschaft (DFG); Finanzministerium
Baden-Wurttemberg; Helmholtz-Gemeinschaft Deutscher Forschungszentren
(HGF); Ministerium fur Wissenschaft und Forschung; Nordrhein-Westfalen;
Ministerium fur Wissenschaft, Forschung und Kunst, Baden-Wurttemberg,
Germany; Istituto Nazionale di Fisica Nucleare (INFN); Ministero
dell'Istruzione, dell'Universita e della Ricerca (MIUR); Gran Sasso
Center for Astroparticle Physics (CFA); CETEMPS Center of Excellence,
Italy; Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico;
Ministerie van Onderwijs, Cultuur en Wetenschap; Nederlandse Organisatie
voor Wetenschappelijk Onderzoek (NWO); Stichting voor Fundamenteel
Onderzoek der Materie (FOM), Netherlands; Ministry of Science and Higher
Education [N N202 200239, N N202 207238]; National Centre for Research
and Development, Poland [ERA-NET-ASPERA/02/11]; Portuguese national
funds; FEDER funds within COMPETE Programa Operacional Factores de
Competitividade through Fundacao para a Ciencia e a Tecnologia,
Portugal; Romanian Authority for Scientific Research ANCS; CNDI-UEFISCDI
partnership projects, Romania [20/2012, 194/2012, 1/ASPERA2/2012
ERA-NET, PN-II-RU-PD-2011-3-0145-17, PN-II-RU-PD-2011-3-0062]; Ministry
for Higher Education, Science, and Technology; Slovenian Research
Agency, Slovenia; Comunidad de Madrid; FEDER funds; Ministerio de
Ciencia e Innovacion and Consolider-Ingenio; Xunta de Galicia, Spain;;
Leverhulme Foundation, Science and Technology Facilities Council, United
Kingdom; Department of Energy [DE-AC02-07CH11359, DE-FR02-04ER41300,
DE-FG02-99ER41107]; National Science Foundation [0450696, 0855680,
1207605]; Grainger Foundation USA; NAFOSTED, Vietnam; Marie
Curie-IRSES/EPLANET; European Particle Physics Latin American Network;
European Union [PIRSES-2009-GA-246806]; UNESCO
FX The successful installation, commissioning, and operation of the Pierre
Auger Observatory would not have been possible without the strong
commitment and effort from the technical and administrative staff in
Malargile. G. Curci was supported by the Italian Space Agency (ASI) in
the frame of PRIMES project.; We are very grateful to the following
agencies and organizations for financial support: Comision Nacional de
Energia Atomica, Gobierno de Argentina, Fundacion Antorchas, Gobierno De
La Provincia de Mendoza, Municipalidad de Malargile, NDM Holdings and
Valle Las Lenas, in gratitude for their continuing cooperation over land
access, Argentina; the Australian Research Council; Conselho Nacional de
Desenvolvimento Cientifico e Tecnologico (CNPq), Financiadora de Estudos
e Projetos (FINEP), Fundacao de Amparo a Pesquisa do Estado de Rio de
Janeiro (FAPERJ), Sao Paulo Research Foundation (FAPFSP) Grants
#2010/07359-6, #1999/05404-3, Ministerio de Ciencia e Tecnologia (MCT),
Brazil; AVCR, MSMT-CR LG13007, 7AMB12AR013, MSM0021620859, and TACR
TA01010517, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre National
de la Recherche Scientifique (CNRS), Conseil Regional Ile-de-France,
Departement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS),
Departement Sciences de l'Univers (SDU-INSU/CNRS), France;
Bundesministerium fur Bildung und Forschung (BMBF), Deutsche
Forschungsgemeinschaft (DFG), Finanzministerium Baden-Wurttemberg,
Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium
fur Wissenschaft und Forschung, Nordrhein-Westfalen, Ministerium fur
Wissenschaft, Forschung und Kunst, Baden-Wurttemberg, Germany; Istituto
Nazionale di Fisica Nucleare (INFN), Ministero dell'Istruzione,
dell'Universita e della Ricerca (MIUR), Gran Sasso Center for
Astroparticle Physics (CFA), CETEMPS Center of Excellence, Italy;
Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico; Ministerie
van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor
Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek
der Materie (FOM), Netherlands; Ministry of Science and Higher
Education, Grant Nos. N N202 200239 and N N202 207238, The National
Centre for Research and Development Grant No ERA-NET-ASPERA/02/11,
Poland; Portuguese national funds and FEDER funds within COMPETE
Programa Operacional Factores de Competitividade through Fundacao para a
Ciencia e a Tecnologia, Portugal; Romanian Authority for Scientific
Research ANCS, CNDI-UEFISCDI partnership projects nr.20/2012 and
nr.194/2012, project nr.1/ASPERA2/2012 ERA-NET,
PN-II-RU-PD-2011-3-0145-17, and PN-II-RU-PD-2011-3-0062, Romania;
Ministry for Higher Education, Science, and Technology, Slovenian
Research Agency, Slovenia; Comunidad de Madrid, FEDER funds, Ministerio
de Ciencia e Innovacion and Consolider-Ingenio 2010 (CPAN), Xunta de
Galicia, Spain; The Leverhulme Foundation, Science and Technology
Facilities Council, United Kingdom; Department of Energy, Contract Nos.
DE-AC02-07CH11359, DE-FR02-04ER41300, DE-FG02-99ER41107, National
Science Foundation, Grant No. 0450696, 0855680, 1207605, The Grainger
Foundation USA; NAFOSTED, Vietnam; Marie Curie-IRSES/EPLANET, European
Particle Physics Latin American Network, European Union 7th Framework
Program, Grant No. PIRSES-2009-GA-246806; and UNESCO.
NR 34
TC 1
Z9 1
U1 2
U2 73
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0169-8095
EI 1873-2895
J9 ATMOS RES
JI Atmos. Res.
PD NOV
PY 2014
VL 149
BP 120
EP 135
DI 10.1016/j.atmosres.2014.05.021
PG 16
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA AO6NF
UT WOS:000341468100011
ER
PT J
AU Banuelos, JL
Feng, G
Fulvio, PF
Li, S
Rother, G
Arend, N
Faraone, A
Dai, S
Cummings, PT
Wesolowski, DJ
AF Banuelos, Jose Leobardo
Feng, Guang
Fulvio, Pasquale F.
Li, Song
Rother, Gernot
Arend, Nikolas
Faraone, Antonio
Dai, Sheng
Cummings, Peter T.
Wesolowski, David J.
TI The influence of a hierarchical porous carbon network on the coherent
dynamics of a nanoconfined room temperature ionic liquid: A neutron spin
echo and atomistic simulation investigation
SO CARBON
LA English
DT Article
ID ALKYL CHAIN-LENGTH; X-RAY-SCATTERING; MOLECULAR-DYNAMICS;
STRUCTURAL-PROPERTIES; ELECTROCHEMICAL CAPACITORS; NITROGEN ADSORPTION;
MESOPOROUS CARBONS; DOUBLE-LAYER; IMIDAZOLIUM; HETEROGENEITY
AB The molecular-scale dynamic properties of the room temperature ionic liquid (RTIL) 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, or [C(4)mim(+)][Tf2N-], confined in hierarchical microporous-mesoporous carbon, were investigated using neutron spin echo (NSE) and molecular dynamics (MD) simulations. Both NSE and MD reveal pronounced slowing of the overall collective dynamics, including the presence of an immobilized fraction of RTIL at the pore wall, on the time scales of these approaches. A fraction of the dynamics, corresponding to RTIL inside 0.75 nm micropores located along the mesopore surfaces, are faster than those of RTIL in direct contact with the walls of 5.8 nm and 7.8 nm cylindrical mesopores. This behavior is ascribed to the near-surface confined-ion density fluctuations resulting from the ion-ion and ion-wall interactions between the micropores and mesopores as well as their confinement geometries. Strong micropore-RTIL interactions result in less-coordinated RTIL within the micropores than in the bulk fluid. Increasing temperature from 296 K to 353 K reduces the immobilized RTIL fraction and results in nearly an order of magnitude increase in the RTIL dynamics. The observed interfacial phenomena underscore the importance of tailoring the surface properties of porous carbons to achieve desirable electrolyte dynamic behavior, since this impacts the performance in applications such as electrical energy storage devices. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Banuelos, Jose Leobardo; Fulvio, Pasquale F.; Rother, Gernot; Dai, Sheng; Wesolowski, David J.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Feng, Guang; Li, Song; Cummings, Peter T.] Vanderbilt Univ, Dept Chem & Biomol Engn, Nashville, TN 37235 USA.
[Arend, Nikolas] Julich Ctr Neutron Sci JCNS, Outstn Spallat Neutron Source SNS, Oak Ridge, TN 37831 USA.
[Faraone, Antonio] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Faraone, Antonio] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA.
RP Feng, G (reprint author), Vanderbilt Univ, Dept Chem & Biomol Engn, Nashville, TN 37235 USA.
EM banuelosjl@ornl.gov; gfeng@hust.edu.cn
RI Rother, Gernot/B-7281-2008; Dai, Sheng/K-8411-2015; Feng,
Guang/D-8989-2011; Banuelos, Jose/L-1561-2013;
OI Rother, Gernot/0000-0003-4921-6294; Dai, Sheng/0000-0002-8046-3931;
Banuelos, Jose/0000-0003-4644-526X; Feng, Guang/0000-0001-6659-9181
FU Fluid Interface Reactions, Structures and Transport (FIRST) Center, an
Energy Frontier Research Center - U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences; Scientific User Facilities
Division, Office of Basic Energy Sciences, U.S. Department of Energy;
National Science Foundation [DMR-0944772]
FX This work was supported as part of the Fluid Interface Reactions,
Structures and Transport (FIRST) Center, an Energy Frontier Research
Center funded by the U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences. The SNS NSE portion and bulk liquid
diffraction portion of this research conducted at Oak Ridge National
Laboratory's Spallation Neutron Source was sponsored by the Scientific
User Facilities Division, Office of Basic Energy Sciences, U.S.
Department of Energy. The NIST NSE portion of this work utilized
facilities supported in part by the National Science Foundation under
Agreement No. DMR-0944772. G.F. thanks the Palmetto Cluster at Clemson
University for providing computational resources. The authors thank the
reviewers for their insightful comments that helped improve the clarity
and strengthen certain points in this work. The authors would like to
acknowledge M. Monkenbusch of the Julich Centre for Neutron Science JCNS
for his helpful discussions during the SNS NSE experiment, review of the
manuscript, and helpful comments. The authors acknowledge C. Liao,
formerly of Oak Ridge National Laboratory (ORNL) for performing the
anion exchange in the deuterated RTIL, as well as X. Wang, formerly of
ORNL, for the synthesis of the 5.8 nm-confined RTIL compound. The
authors also acknowledge T. Kozielewski and M. Ohl of JCNS Outstation at
SNS for their assistance in setting up the NSE experiments on BL-15 at
the SNS, as well as C. Do of ORNL for assistance during beam time on
BL-6B at the SNS.
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U2 93
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0008-6223
EI 1873-3891
J9 CARBON
JI Carbon
PD NOV
PY 2014
VL 78
BP 415
EP 427
DI 10.1016/j.carbon.2014.07.020
PG 13
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA AO6LP
UT WOS:000341463900044
ER
PT J
AU Hruby, P
Singh, SS
Williams, JJ
Xiao, XH
De Carlo, F
Chawla, N
AF Hruby, Peter
Singh, Sudhanshu S.
Williams, Jason J.
Xiao, Xianghui
De Carlo, Francesco
Chawla, Nikhilesh
TI Fatigue crack growth in SiC particle reinforced Al alloy matrix
composites at high and low R-ratios by in situ X-ray synchrotron
tomography
SO INTERNATIONAL JOURNAL OF FATIGUE
LA English
DT Article
DE Metal-matrix composites (MMCs); SiC particles; Fatigue; R-ratio; X-ray
tomography
ID ADVANCED PHOTON SOURCE; 3-DIMENSIONAL CHARACTERIZATION; MICROSTRUCTURE
VISUALIZATION; MATERIALS SCIENCE; DAMAGE EVOLUTION; ALUMINUM-ALLOY;
METAL; MICROTOMOGRAPHY; BEHAVIOR; POROSITY
AB Metal matrix composites (MMCs) offer high strength, high stiffness, low density, and good fatigue resistance, while maintaining cost an acceptable level. Fatigue resistance of MMCs depends on many aspects of composite microstructure. Fatigue crack growth behavior is particularly dependent on the reinforcement characteristics and matrix microstructure. The goal of this work is to obtain a fundamental understanding of fatigue crack growth behavior in SiC particle-reinforced 2080 Al alloy composites. 'In situ X-ray synchrotron tomography was performed on two samples at low (R = 0.1) and at high (R = 0.6) R-ratios. The resulting reconstructed images were used to obtain three-dimensional (3D) rendering of the particles and fatigue crack. Behaviors of the particles and crack, as well as their interaction, were analyzed and quantified. Four-dimensional (4D) visual representations were constructed to aid in the overall understanding of damage evolution. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Hruby, Peter; Singh, Sudhanshu S.; Williams, Jason J.; Chawla, Nikhilesh] Arizona State Univ, Sch Engn Matter Transport & Energy, Ira A Fulton Sch Engn, Tempe, AZ 85287 USA.
[Xiao, Xianghui; De Carlo, Francesco] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Chawla, N (reprint author), Arizona State Univ, Sch Engn Matter Transport & Energy, Ira A Fulton Sch Engn, Tempe, AZ 85287 USA.
EM nchawla@asu.edu
OI Singh, Sudhanshu Shekhar/0000-0002-8681-6558
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]
FX Use of the Advanced Photon Source was supported by the U.S. Department
of Energy, Office of Science, Office of Basic Energy Sciences, under
Contract No. DE-AC02-06CH11357.
NR 50
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U1 3
U2 60
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0142-1123
EI 1879-3452
J9 INT J FATIGUE
JI Int. J. Fatigue
PD NOV
PY 2014
VL 68
BP 136
EP 143
DI 10.1016/j.ijfatigue.2014.05.010
PG 8
WC Engineering, Mechanical; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA AO6LN
UT WOS:000341463700013
ER
PT J
AU Goguet, A
Partridge, WP
Aiouche, F
Hardacre, C
Morgan, K
Stere, C
Sa, J
AF Goguet, Alexandre
Partridge, William P.
Aiouche, Farid
Hardacre, Christopher
Morgan, Kevin
Stere, Cristina
Sa, Jacinto
TI Comment on "The Critical evaluation of in situ probe techniques for
catalytic honeycomb monoliths" by Hettel et al.
SO CATALYSIS TODAY
LA English
DT Editorial Material
ID GAS-PHASE REACTIONS; TEMPERATURE; OXIDATION; STORAGE; BED
C1 [Goguet, Alexandre; Hardacre, Christopher; Morgan, Kevin; Stere, Cristina] Queens Univ Belfast, Sch Chem & Chem Engn, CenTACat, Belfast BT9 5AG, Antrim, North Ireland.
[Partridge, William P.] Oak Ridge Natl Lab, Fuels Engines & Emiss Res Ctr, Oak Ridge, TN 37831 USA.
[Aiouche, Farid] Univ Lancaster, Dept Engn, Lancaster LA1 4YR, England.
[Sa, Jacinto] Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
RP Goguet, A (reprint author), Queens Univ Belfast, Sch Chem & Chem Engn, CenTACat, Stranmillis Rd, Belfast BT9 5AG, Antrim, North Ireland.
EM a.goguet@qub.ac.uk; partridgewp@ornl.gov
RI Morgan, Kevin/B-6056-2012
OI Morgan, Kevin/0000-0002-6648-2546
NR 11
TC 5
Z9 5
U1 1
U2 13
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5861
EI 1873-4308
J9 CATAL TODAY
JI Catal. Today
PD NOV 1
PY 2014
VL 236
BP 206
EP 208
DI 10.1016/j.cattod.2014.02.034
PN B
PG 3
WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical
SC Chemistry; Engineering
GA AN9RS
UT WOS:000340946500004
ER
PT J
AU Phuoc, TX
Wang, P
McIntyre, D
Shadle, L
AF Phuoc, Tran X.
Wang, Ping
McIntyre, Dustin
Shadle, Lawrence
TI Synthesis and characterization of a thixotropic coal-water slurry for
use as a liquid fuel
SO FUEL PROCESSING TECHNOLOGY
LA English
DT Article
DE Coal-water slurry; Thixotropy; Co-intercalated laponite
ID LASER-ABLATION; SUSPENSIONS; PARTICLES
AB We reported here a novel approach to synthesize a low-viscosity and stable coal water slurry for use in many practical applications. The slurry was prepared by mixing coal particles with a gelling solution containing water and 1 wt.% of cobalt-intercalated laponite. The coal particle sizes were less than 75 pm and the coal loading was 50% by weight. The slurry prepared this way was able to transform to a high-viscous and unflowable gel holding coal particles uniformly throughout its volume when it was stored at rest. When it was sheared, its gelling network structure was immediately broken down becoming a low-viscous flowable liquid. The transport and thixotropic properties of the prepared slurry were measured and they were described very well by the Bingham model and the thixotropic model proposed by Usui, respectively. Published by Elsevier B.V.
C1 [Phuoc, Tran X.; Wang, Ping; McIntyre, Dustin; Shadle, Lawrence] Dept Energy, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
RP Phuoc, TX (reprint author), Dept Energy, Natl Energy Technol Lab, POB 10940,MS 841-340, Pittsburgh, PA 15236 USA.
EM tran@netl.doe.gov
OI McIntyre, Dustin/0000-0003-4907-9576; Shadle,
Lawrence/0000-0002-6283-3628
NR 18
TC 8
Z9 9
U1 0
U2 20
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-3820
EI 1873-7188
J9 FUEL PROCESS TECHNOL
JI Fuel Process. Technol.
PD NOV
PY 2014
VL 127
BP 105
EP 110
DI 10.1016/j.fuproc.2014.06.019
PG 6
WC Chemistry, Applied; Energy & Fuels; Engineering, Chemical
SC Chemistry; Energy & Fuels; Engineering
GA AO0CK
UT WOS:000340976500015
ER
PT J
AU Otto, F
Hanold, NL
George, EP
AF Otto, F.
Hanold, N. L.
George, E. P.
TI Microstructural evolution after thermomechanical processing in an
equiatomic, single-phase CoCrFeMnNi high-entropy alloy with special
focus on twin boundaries
SO INTERMETALLICS
LA English
DT Article
DE High-entropy alloys; Twinning; Recrystallization and recovery;
Thermomechanical processing; Microstructure; Electron backscatter
diffraction
ID CU-AL ALLOYS; ANNEALING TWINS; GRAIN-GROWTH; ENERGY; ORIGIN; ALPHA
AB The FCC-structured equiatomic CoCrFeMnNi high-entropy alloy was produced by arc melting and drop casting. After homogenization, the drop-cast ingots were cold rolled to sheets with six different final thicknesses (thickness reductions of 21, 41, 61, 84, 92 and 96%). Samples were cut from the rolled sheets and annealed for 1 h at temperatures between 400 and 1000 degrees C. The recrystallization temperature was then determined as a function of cold work by means of scanning electron microscopy and electron backscatter diffraction measurements. Additionally, Vickers indentation was performed on these samples. It was found that the microhardness first tends to increase slightly upon annealing below the recrystallization temperature but then drops steeply for higher annealing temperatures due to the onset of recrystallization. To study grain growth kinetics, samples that underwent 96% cold rolling were first recrystallized for 1 h at 800 degrees C, which is the lowest temperature at which complete recrystallization occurs, and then annealed at temperatures between 800 and 1150 degrees C for various times. The grain growth exponent was determined to be approximately n = 3, and the activation energy Q = 325 kJ/mol, both of which agree well with published values for this alloy. EBSD measurements were made in the as-recrystallized and grain growth samples to analyze the annealing twins. The density of annealing twins in the grain growth samples was found to depend only on grain size, i.e., it was independent of annealing temperature and time. No such correlation could be found for the as-recrystallized samples. These observations are discussed in the framework of existing theories for the formation of annealing twins. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Otto, F.; George, E. P.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Otto, F.; Hanold, N. L.; George, E. P.] Univ Tennessee, Mat Sci & Engn Dept, Knoxville, TN 37996 USA.
RP Otto, F (reprint author), Ruhr Univ Bochum, Inst Werkstoffe, D-44780 Bochum, Germany.
EM frederik.otto@rub.de
RI George, Easo/L-5434-2014;
OI Hanold, Nikki/0000-0003-0196-0356
FU U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and
Engineering Division; Alexander von Humboldt Foundation through a Feodor
Lynen Research Fellowship
FX This research was sponsored by the U.S. Department of Energy, Basic
Energy Sciences, Materials Sciences and Engineering Division. F.O. also
received funding from the Alexander von Humboldt Foundation through a
Feodor Lynen Research Fellowship.
NR 21
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U1 18
U2 133
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0966-9795
EI 1879-0216
J9 INTERMETALLICS
JI Intermetallics
PD NOV
PY 2014
VL 54
BP 39
EP 48
DI 10.1016/j.intermet.2014.05.014
PG 10
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA AO0FF
UT WOS:000340983800006
ER
PT J
AU Hasemann, G
Schneibel, JH
Kruger, M
George, EP
AF Hasemann, G.
Schneibel, J. H.
Krueger, M.
George, E. P.
TI Vacancy strengthening in Fe3Al iron aluminides
SO INTERMETALLICS
LA English
DT Article
DE Iron aluminides; Yield stress; Heat treatment; Mechanical testing
ID PLASTIC DEFORMATION BEHAVIOUR; FE-AL ALLOYS; MECHANICAL-PROPERTIES;
FRACTURE-BEHAVIOR; YIELD-STRESS; TEMPERATURES; TRANSFORMATION;
DIFFUSION; HARDNESS; FE-40AL
AB The room temperature strength of FeAl alloys can be increased significantly by freezing in the high thermal vacancy concentrations present at elevated temperatures. In contrast, because of their lower thermal vacancy concentrations, vacancy strengthening in quenched Fe3Al alloys is believed to be much smaller and has not received much attention to date. In the present work, the influence of annealing time and quench temperature on the room temperature strength of extruded and recrystallized Fe3Al alloys is evaluated. For aluminum concentrations between 28 and 32 at% and quench temperatures between 400 and 900 degrees C both the magnitude and the kinetics of strengthening are found to be consistent with reported values for the thermal vacancy concentrations and vacancy migration rates. To assess the potential contributions of other strengthening mechanisms, appropriate heat treatments will need to be designed in follow-on studies that alter microstructural features relevant to those mechanisms while maintaining a constant vacancy concentration. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Hasemann, G.; Krueger, M.] Univ Magdeburg, Inst Mat & Joining Technol, D-39106 Magdeburg, Germany.
[George, E. P.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[George, E. P.] Univ Tennessee, Mat Sci & Engn Dept, Knoxville, TN 37996 USA.
RP Hasemann, G (reprint author), Univ Magdeburg, Inst Mat & Joining Technol, Univ Pl 2, D-39106 Magdeburg, Germany.
EM georg.hasemann@ovgu.de
RI George, Easo/L-5434-2014
FU U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and
Engineering Division; Methodisch-Diagnostisches Zentrum Werkstoffprufung
(MDZWP) e.V., Magdeburg, Germany
FX This research was sponsored by the U.S. Department of Energy, Basic
Energy Sciences, Materials Sciences and Engineering Division. GH and MK
also acknowledge financial support of the Methodisch-Diagnostisches
Zentrum Werkstoffprufung (MDZWP) e.V., Magdeburg, Germany.
NR 46
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U1 1
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PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0966-9795
EI 1879-0216
J9 INTERMETALLICS
JI Intermetallics
PD NOV
PY 2014
VL 54
BP 95
EP 103
DI 10.1016/j.intermet.2014.05.013
PG 9
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA AO0FF
UT WOS:000340983800013
ER
PT J
AU Ma, SG
Zhang, SF
Qiao, JW
Wang, ZH
Gao, MC
Jiao, ZM
Yang, HJ
Zhang, Y
AF Ma, S. G.
Zhang, S. F.
Qiao, J. W.
Wang, Z. H.
Gao, M. C.
Jiao, Z. M.
Yang, H. J.
Zhang, Y.
TI Superior high tensile elongation of a single-crystal CoCrFeNiAl0.3
high-entropy alloy by Bridgman solidification
SO INTERMETALLICS
LA English
DT Article
DE Fracture mode; Casting; Microstructure; Mechanical properties
ID MULTICOMPONENT ALLOYS; MICROSTRUCTURE; SUPERALLOYS; SPECIMEN; BEHAVIOR;
HARDNESS
AB The crystallographic orientation, tensile behavior, fracture mechanism, hardness, and elastic modulus of a single-crystal CoCrFeNiAl0.3 high-entropy alloy (HEA) successfully synthesized by Bridgman solidification are investigated in detail. The growth direction of the single-crystal product mainly focuses on the < 001 > orientation. An ultimate tensile elongation of about 80% is achieved in the single-crystal alloy, accompanied by a large work-hardening exponent and a shear-fracture mode. A quantitative Hall Petch relationship for the current HEA can be obtained as sigma(y) = 171.65 + 0.73/root d. The single-crystal sample displays a relatively-lower elastic modulus than the as-cast counterpart, indicating the anisotropy of elastic modulus. The outstanding tensile ductility for the single-crystal product is attributed to (1) low-angle grain boundaries and thus less distance to dislocation motion; and (2) single < 001 > crystallographic orientation and therefore less plastic-strain incompatibility. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Ma, S. G.; Wang, Z. H.; Jiao, Z. M.] Taiyuan Univ Technol, Inst Appl Mech & Biomed Engn, Taiyuan 030024, Peoples R China.
[Zhang, S. F.; Zhang, Y.] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China.
[Qiao, J. W.; Yang, H. J.] Taiyuan Univ Technol, Coll Mat Sci & Technol, Lab Appl Phys & Mech Adv Mat, Taiyuan 030024, Peoples R China.
[Gao, M. C.] Natl Energy Technol Lab, Albany, OR 97321 USA.
[Yang, H. J.] Taiyuan Univ Technol, Res Inst Surface Engn, Taiyuan 030024, Peoples R China.
RP Ma, SG (reprint author), Taiyuan Univ Technol, Inst Appl Mech & Biomed Engn, Taiyuan 030024, Peoples R China.
EM mashengguo@tyut.edu.cn; drzhangy@ustb.edu.cn
RI ZHANG, Yong/B-7928-2009
OI ZHANG, Yong/0000-0002-6355-9923
FU National Natural Science Foundation of China [51101110, 51371122,
11390362, 51341006]; Shanxi Scholarship Council of China [2012-032];
Program for the outstanding Innovative Teams of Higher Learning
Institutions of Shanxi; Top Young Academic Leaders of Shanxi and the
Outstanding Innovative Teams of Higher Learning Institutions of Shanxi;
State Key Lab of Advanced Metals and Materials [2013-Z03]
FX J.W. Qiao would like to acknowledge the financial support of the
National Natural Science Foundation of China (Nos. 51101110 and
51371122), the Research Project supported by Shanxi Scholarship Council
of China (No. 2012-032), and the Program for the outstanding Innovative
Teams of Higher Learning Institutions of Shanxi (2013). Z.H. Wang would
like to acknowledge the financial support of the National Natural
Science Foundation of China (No.11390362), the Top Young Academic
Leaders of Shanxi and the Outstanding Innovative Teams of Higher
Learning Institutions of Shanxi. H.J. Yang would like to acknowledge the
financial support of the National Natural Science Foundation of China
(No. 51341006), and the State Key Lab of Advanced Metals and Materials
(No.2013-Z03).
NR 38
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U1 8
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PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0966-9795
EI 1879-0216
J9 INTERMETALLICS
JI Intermetallics
PD NOV
PY 2014
VL 54
BP 104
EP 109
DI 10.1016/j.intermet.2014.05.018
PG 6
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA AO0FF
UT WOS:000340983800014
ER
PT J
AU Barlow, A
Hill, R
Shashkov, M
AF Barlow, Andrew
Hill, Ryan
Shashkov, Mikhail
TI Constrained optimization framework for interface-aware sub-scale
dynamics closure model for multimaterial cells in Lagrangian and
arbitrary Lagrangian-Eulerian hydrodynamics
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Lagrangian hydrodynamics; Multimaterial cells; Interface-aware sub-scale
closure models
ID COMPRESSIBLE MULTIFLUIDS; MIXTURE THEORY; 2-PHASE FLOW; RECONSTRUCTION;
PRESSURE; COMPUTATIONS
AB A systematic description of the new interface-aware sub-scale-dynamics (IA-SSD) closure model for the Lagrangian stage of multimaterial arbitrary Lagrangian-Eulerian methods is presented. The IA-SSD closure model consists of two stages. During the first, bulk, stage, the well known equal compressibility model is used. During the second stage, sub-scale interactions of the materials inside the multimaterial cell are taken into account. At this stage, information about the topology of the materials inside the multimaterial cell is utilized, allowing the orientations of internal interfaces to be included in the model. Each material interacts in a pair-wise fashion with the materials with which it has a common boundary. The interactions are based on the solution of the acoustic Riemann problem between each pair of materials and is limited using physically justified constraints: positivity of volume, positivity of internal energy and controlled rate of pressure relaxation. To determine the values of the limiter coefficients, a constrained-optimization framework is employed using a quadratic objective function with linear constraints. The algorithm guarantees the positivity of the material volume and internal energy as well as the smooth relaxation of the pressure - this allows a significant increase in the robustness of the overall algorithm.
The results of comprehensive testing of the new model have been presented for one- and two-dimensional multimaterial Lagrangian hydrodynamics along with representative results for 2D multimaterial arbitrary Lagrangian-Eulerian (ALE) calculations. The numerical tests have shown that in most cases the new IA-SSD closure model produces better results compared to the well known Tipton's closure model. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Barlow, Andrew; Hill, Ryan] AWE Aldermaston, Computat Phys Grp, Reading RG7 4PR, Berks, England.
[Hill, Ryan; Shashkov, Mikhail] Los Alamos Natl Lab, XCP 4, X Computat Phys, Los Alamos, NM 87545 USA.
RP Shashkov, M (reprint author), Los Alamos Natl Lab, XCP 4, X Computat Phys, Los Alamos, NM 87545 USA.
EM shashkov@lanl.gov
FU National Nuclear Security Administration of the US Department of Energy
[DE-AC52-06NA25396]; US Department of Energy Office of Science Advanced
Scientific Computing Research (ASCR) Program in Applied Mathematics
Research (Project "Mimetic Methods for Partial Differential Equations");
US Department of Energy National Nuclear Security Administration
Advanced Simulation and Computing (ASC) Program
FX This work was performed under the auspices of the National Nuclear
Security Administration of the US Department of Energy at Los Alamos
National Laboratory under Contract No. DE-AC52-06NA25396. The authors
gratefully acknowledge the partial support of the US Department of
Energy Office of Science Advanced Scientific Computing Research (ASCR)
Program in Applied Mathematics Research (Project "Mimetic Methods for
Partial Differential Equations") and the partial support of the US
Department of Energy National Nuclear Security Administration Advanced
Simulation and Computing (ASC) Program.
NR 51
TC 3
Z9 3
U1 2
U2 14
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
EI 1090-2716
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD NOV 1
PY 2014
VL 276
BP 92
EP 135
DI 10.1016/j.jcp.2014.07.031
PG 44
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA AO4LP
UT WOS:000341310100006
ER
PT J
AU Willert, J
Park, H
AF Willert, Jeffrey
Park, H.
TI Residual Monte Carlo high-order solver for Moment-Based Accelerated
Thermal Radiative Transfer equations
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Thermal Radiative Transfer; Moment-Based Acceleration; Monte Carlo;
Residual Monte Carlo
ID DIFFERENCE FORMULATION; TRANSPORT; DISCRETIZATION
AB In this article we explore the possibility of replacing Standard Monte Carlo (SMC) transport sweeps within a Moment-Based Accelerated Thermal Radiative Transfer (TRT) algorithm with a Residual Monte Carlo (RMC) formulation. Previous Moment-Based Accelerated TRT implementations have encountered trouble when stochastic noise from SMC transport sweeps accumulates over several iterations and pollutes the low-order system. With RMC we hope to significantly lower the build-up of statistical error at a much lower cost. First, we display encouraging results for a zero-dimensional test problem. Then, we demonstrate that we can achieve a lower degree of error in two one-dimensional test problems by employing an RMC transport sweep with multiple orders of magnitude fewer particles per sweep. We find that by reformulating the high-order problem, we can compute more accurate solutions at a fraction of the cost. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Willert, Jeffrey; Park, H.] Los Alamos Natl Lab, Div Theoret, MS B216, Los Alamos, NM 87545 USA.
RP Willert, J (reprint author), Los Alamos Natl Lab, Div Theoret, MS B216, Los Alamos, NM 87545 USA.
EM jaw@lanl.gov
FU U.S. Department of Energy [DE-AC52-06NA25396]
FX This work was performed under U.S. government contract DE-AC52-06NA25396
for Los Alamos National Laboratory, which is operated by Los Alamos
National Security, LLC, for the U.S. Department of Energy.
NR 13
TC 4
Z9 4
U1 0
U2 2
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
EI 1090-2716
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD NOV 1
PY 2014
VL 276
BP 405
EP 421
DI 10.1016/j.jcp.2014.07.039
PG 17
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA AO4LP
UT WOS:000341310100017
ER
PT J
AU Lin, G
Liu, JG
Mu, L
Ye, X
AF Lin, Guang
Liu, Jiangguo
Mu, Lin
Ye, Xiu
TI Weak Galerkin finite element methods for Darcy flow: Anisotropy and
heterogeneity
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Anisotropy; Darcy flow; Heterogeneity; Porous media; Weak Galerkin
ID 2ND-ORDER ELLIPTIC PROBLEMS; DISCONTINUOUS GALERKIN; SUPPORT; MESHES
AB This paper presents a family of weak Galerkin finite element methods (WGFEMs) for Darcy flow computation. The WGFEMs are new numerical methods that rely on the novel concept of discrete weak gradients. The WGFEMs solve for pressure unknowns both in element interiors and on the mesh skeleton. The numerical velocity is then obtained from the discrete weak gradient of the numerical pressure. The new methods are quite different than many existing numerical methods in that they are locally conservative by design, the resulting discrete linear systems are symmetric and positive-definite, and there is no need for tuning problem-dependent penalty factors. We test the WGFEMs on benchmark problems to demonstrate the strong potential of these new methods in handling strong anisotropy and heterogeneity in Darcy flow. Published by Elsevier Inc.
C1 [Lin, Guang] Purdue Univ, Dept Math, W Lafayette, IN 47907 USA.
[Lin, Guang] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA.
[Lin, Guang] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Liu, Jiangguo] Colorado State Univ, Dept Math, Ft Collins, CO 80523 USA.
[Mu, Lin] Michigan State Univ, Dept Math, E Lansing, MI 48824 USA.
[Ye, Xiu] Univ Arkansas, Dept Math, Little Rock, AR 72204 USA.
RP Lin, G (reprint author), Purdue Univ, Dept Math, W Lafayette, IN 47907 USA.
EM guanglin@purdue.edu
FU US DOE Office of Advanced Scientific Computing Research; Pacific
Northwest National Laboratory's Carbon Sequestration Initiative;
National Science Foundation [DMS-1419077, DMS-1115097]; U.S. Department
of Energy [DE-AC05-76RL01830]
FX G. Lin would like to acknowledge support by the Applied Mathematics
program of the US DOE Office of Advanced Scientific Computing Research
and Pacific Northwest National Laboratory's Carbon Sequestration
Initiative, which is part of the Laboratory Directed Research and
Development Program. J. Liu was partially supported by the National
Science Foundation under Grant No. DMS-1419077. X. Ye was supported in
part by the National Science Foundation under Grant No. DMS-1115097.
Computations were performed using the computational resources of Pacific
Northwest National Laboratory (PNNL) Institutional Computing cluster
systems and the National Energy Research Scientific Computing Center at
Lawrence Berkeley National Laboratory. The PNNL is operated by Battelle
for the U.S. Department of Energy under Contract DE-AC05-76RL01830.
NR 33
TC 3
Z9 3
U1 0
U2 7
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
EI 1090-2716
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD NOV 1
PY 2014
VL 276
BP 422
EP 437
DI 10.1016/j.jcp.2014.07.001
PG 16
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA AO4LP
UT WOS:000341310100018
ER
PT J
AU Kramer, RMJ
Bochev, PB
Siefert, CM
Voth, TE
AF Kramer, Richard M. J.
Bochev, Pavel B.
Siefert, Christopher M.
Voth, Thomas E.
TI Algebraically constrained extended edge element method (eXFEM-AC) for
resolution of multi-material cells
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Eddy current equations; Transverse electric mode; Material interface;
Algebraic constraints
ID MIXED FINITE-ELEMENTS; EULERIAN HYDROCODES; INTERFACE PROBLEMS;
MIXTURES; HOMOGENIZATION; MODELS
AB Surface effects are critical to the predictive simulation of electromagnetics as current tends to concentrate near material interfaces. There are two principal difficulties in the accurate representation of these effects in discrete models. First, many applications of interest operate at large deformations, where body-fitted meshes are impractical. Second, physics-compatible discretizations of the governing equations require curl-conforming edge elements, for which no practical alternatives to body-fitted meshes exist. The main purpose of this paper is to develop such an alternative that avoids remeshing the problem.
Our approach uses the existing edge element basis to dynamically construct an interface-conforming basis. We show that in the case of triangular grids in two dimensions, our approach generates a basis that spans the same space as edge elements on an interface-fitted mesh. We also demonstrate the efficacy of the approach computationally. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Kramer, Richard M. J.; Bochev, Pavel B.; Siefert, Christopher M.; Voth, Thomas E.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Siefert, CM (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM csiefer@sandia.gov
FU U. S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX Sandia National Laboratories area 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 27
TC 0
Z9 0
U1 1
U2 6
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
EI 1090-2716
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD NOV 1
PY 2014
VL 276
BP 596
EP 612
DI 10.1016/j.jcp.2014.07.021
PG 17
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA AO4LP
UT WOS:000341310100026
ER
PT J
AU Tan, S
Huang, LJ
AF Tan, Sirui
Huang, Lianjie
TI A staggered-grid finite-difference scheme optimized in the time-space
domain for modeling scalar-wave propagation in geophysical problems
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Dispersion error; Finite-difference scheme; Finite-difference stencil;
Numerical modeling; Optimized scheme; Scalar wave; Wave propagation
ID ABSORBING BOUNDARY-CONDITIONS; PERFECTLY MATCHED LAYER; HIGH-ORDER;
COMPUTATIONAL ACOUSTICS; HETEROGENEOUS MEDIA; EQUATION; ACCURACY;
VELOCITY; SIMULATION; 4TH-ORDER
AB For modeling scalar-wave propagation in geophysical problems using finite-difference schemes, optimizing the coefficients of the finite-difference operators can reduce numerical dispersion. Most optimized finite-difference schemes for modeling seismic-wave propagation suppress only spatial but not temporal dispersion errors. We develop a novel optimized finite-difference scheme for numerical scalar-wave modeling to control dispersion errors not only in space but also in time. Our optimized scheme is based on a new stencil that contains a few more grid points than the standard stencil. We design an objective function for minimizing relative errors of phase velocities of waves propagating in all directions within a given range of wavenumbers. Dispersion analysis and numerical examples demonstrate that our optimized finite-difference scheme is computationally up to 2.5 times faster than the optimized schemes using the standard stencil to achieve the similar modeling accuracy for a given 2D or 3D problem. Compared with the high-order finite-difference scheme using the same new stencil, our optimized scheme reduces 50 percent of the computational cost to achieve the similar modeling accuracy. This new optimized finite-difference scheme is particularly useful for large-scale 3D scalar-wave modeling and inversion. Published by Elsevier Inc.
C1 [Tan, Sirui] Formerly Alamos Natl Lab, Geophys Grp, Los Alamos, NM 87545 USA.
[Huang, Lianjie] Los Alamos Natl Lab, Geophys Grp, Los Alamos, NM 87545 USA.
RP Huang, LJ (reprint author), Los Alamos Natl Lab, Geophys Grp, Los Alamos, NM 87545 USA.
EM siruitan@hotmail.com; ljh@lanl.gov
RI Tan, Sirui/H-9565-2015
OI Tan, Sirui/0000-0002-8150-3261
FU U.S. Department of Energy [DE-AC52-06NA25396]
FX This work was supported by U.S. Department of Energy through contract
DE-AC52-06NA25396 to Los Alamos National Laboratory (LANL). The
computation was performed using super-computers of LANL's Institutional
Computing Program. We thank three anonymous reviewers for their valuable
comments.
NR 43
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Z9 12
U1 0
U2 11
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
EI 1090-2716
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD NOV 1
PY 2014
VL 276
BP 613
EP 634
DI 10.1016/j.jcp.2014.07.044
PG 22
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA AO4LP
UT WOS:000341310100027
ER
PT J
AU Levin, EM
Kramer, MJ
Schmidt-Rohr, K
AF Levin, E. M.
Kramer, M. J.
Schmidt-Rohr, K.
TI Local composition and carrier concentration in Pb0.7Ge0.3Te and
Pb0.5Ge0.5Te alloys from Te-125 NMR and microscopy
SO JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
LA English
DT Article
DE Chalcogenides; Electron microscopy; X-ray diffraction; Microstructure;
Nuclear magnetic resonance (NMR)
ID GERMANIUM TELLURIDE; THERMOELECTRIC-MATERIALS; BAND STRUCTURE; PBTE;
GETE; SEMICONDUCTORS; CHALCOGENIDES; DESIGN
AB Pb0.7Ge0.3Te and Pb0.5Ge0.5Te alloys, (i) quenched from 923 K or (ii) quenched and annealed at 573 K for 2 h, have been studied by Te-125 NMR, X-ray diffraction, electron and optical microscopy, as well as energy dispersive spectroscopy. Depending on the composition and thermal treatment history, Te-125 NMR spectra exhibit different resonance frequencies and spin-lattice relaxation times, which can be assigned to different phases in the alloy. Quenched and annealed Pb0.7Ge0.3Te alloys can be considered as solid solutions but are shown by NMR to have components with various carrier concentrations. Quenched and annealed Pb0.5Ge0.5Te alloys contain GeTe- and PbTe-based phases with different compositions and charge carrier concentrations. Based on the analysis of non-exponential Te-125 NMR spin-lattice relaxation, the fractions and carrier concentrations of the various phases have been estimated. Our data show that alloying of PbTe with Ge results in the formation of chemically and electronically inhomogeneous systems. Te-125 NMR can be used as an efficient probe to detect the local composition in equilibrium as well as non-equilibrium states, and to determine the local carrier concentrations in complex multiphase tellurides. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Levin, E. M.; Kramer, M. J.; Schmidt-Rohr, K.] Iowa State Univ, Div Mat Sci & Engn, US DOE, Ames Lab, Ames, IA 50011 USA.
[Levin, E. M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Kramer, M. J.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
[Schmidt-Rohr, K.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
RP Levin, EM (reprint author), Iowa State Univ, Div Mat Sci & Engn, US DOE, Ames Lab, Ames, IA 50011 USA.
EM levin@iastate.edu
FU U.S. Department of Energy (DOE), Office of Science, Basic Energy
Sciences, Materials Science and Engineering Division; U.S. DOE by Iowa
State University [DE-AC02-07CH11358]
FX The authors thank L.P. Lincoln and H. Sailsbury at the Materials
Preparation Center at Ames Laboratory for sample synthesis, and J.L.
Harringa and B.A. Cook (Ames Laboratory) for helpful discussions. E.M.L.
thanks J.P. Heremans (Ohio State University) for providing the p-type
PbTe sample. This work was supported by the U.S. Department of Energy
(DOE), Office of Science, Basic Energy Sciences, Materials Science and
Engineering Division. The research was performed at the Ames Laboratory,
which is operated for the U.S. DOE by Iowa State University under
contract no. DE-AC02-07CH11358.
NR 35
TC 0
Z9 0
U1 3
U2 37
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0022-3697
EI 1879-2553
J9 J PHYS CHEM SOLIDS
JI J. Phys. Chem. Solids
PD NOV
PY 2014
VL 75
IS 11
BP 1269
EP 1276
DI 10.1016/j.jpcs.2014.06.004
PG 8
WC Chemistry, Multidisciplinary; Physics, Condensed Matter
SC Chemistry; Physics
GA AO0FO
UT WOS:000340984700014
ER
PT J
AU Zhang, JS
Liu, YN
Huan, Y
Hao, SJ
Jiang, DQ
Ren, Y
Shao, Y
Ru, YD
Wang, ZQ
Cui, LS
AF Zhang, Junsong
Liu, Yinong
Huan, Yong
Hao, Shijie
Jiang, Daqiang
Ren, Yang
Shao, Yang
Ru, Yadong
Wang, Zhongqiang
Cui, Lishan
TI High damping NiTi/Ti3Sn in situ composite with transformation-mediated
plasticity
SO MATERIALS & DESIGN
LA English
DT Article
DE Composite; Synchrotron; Damping; Ti3Sn; NiTi
ID SHAPE-MEMORY ALLOYS; METAL-MATRIX COMPOSITES; HIGH-STRENGTH; BEHAVIOR;
TI3SN; TRIP; CAPACITY; ALUMINUM; TWIN
AB The concept of transformation-induced plasticity effect is introduced in this work to improve the plasticity of brittle intermetallic compound Ti3Sn, which is a potent high damping material. This concept is achieved in an in situ NiTi/Ti3Sn composite. The composite is composed of primary Ti3Sn phase and (NiTi + Ti3Sn) eutectic structure formed via hypereutectic solidification. The composite exhibits a high damping capacity of 0.075 (indexed by tan delta), a high ultimate compressive strength of 1350 MPa, and a large plasticity of 27.5%. In situ synchrotron high-energy X-ray diffraction measurements revealed clear evidence of the stress-induced martensitic transformation (B2 -> B19') of the NiTi component during deformation. The strength of the composite mainly stems from the Ti3Sn, whereas the NiTi component is responsible for the excellent plasticity of the composite. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Zhang, Junsong; Hao, Shijie; Jiang, Daqiang; Shao, Yang; Ru, Yadong; Wang, Zhongqiang; Cui, Lishan] China Univ Petr, Dept Mat Sci & Engn, Beijing 102249, Peoples R China.
[Liu, Yinong] Univ Western Australia, Sch Mech & Chem Engn, Crawley, WA 6009, Australia.
[Huan, Yong] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.
[Ren, Yang] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
RP Cui, LS (reprint author), China Univ Petr, Dept Mat Sci & Engn, Beijing 102249, Peoples R China.
EM lscui@cup.edu.cn
RI Liu, Yinong/G-6637-2011; Jiang, Daqiang /G-5511-2014
OI Liu, Yinong/0000-0002-8784-8543;
FU National Natural Science Foundation of China (NSFC) [51231008]; National
973 programs of China [2012CB619403]; Australian Research Council
[DP140103805]; Key Project of Chinese Ministry of Education [313055]; US
Department of Energy, Office of Science, and Office of Basic Energy
Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
FX This work was supported by the key program project of National Natural
Science Foundation of China (NSFC) (Grant No. 51231008), the National
973 programs of China (Grant No. 2012CB619403), the Australian Research
Council (Grant No. DP140103805), and the Key Project of Chinese Ministry
of Education (Grant No. 313055). The use of the Advanced Photon Source
was supported by the US Department of Energy, Office of Science, and
Office of Basic Energy Science, Office of Basic Energy Sciences, under
Contract No. DE-AC02-06CH11357.
NR 23
TC 6
Z9 6
U1 5
U2 39
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0261-3069
EI 1873-4197
J9 MATER DESIGN
JI Mater. Des.
PD NOV
PY 2014
VL 63
BP 460
EP 463
DI 10.1016/j.matdes.2014.05.062
PG 4
WC Materials Science, Multidisciplinary
SC Materials Science
GA AN9SQ
UT WOS:000340949300056
ER
PT J
AU Takizawa, K
Bazilevs, Y
Tezduyar, TE
Long, CC
Marsden, AL
Schjodt, K
AF Takizawa, Kenji
Bazilevs, Yuri
Tezduyar, Tayfun E.
Long, Christopher C.
Marsden, Alison L.
Schjodt, Kathleen
TI ST and ALE-VMS methods for patient-specific cardiovascular fluid
mechanics modeling
SO MATHEMATICAL MODELS & METHODS IN APPLIED SCIENCES
LA English
DT Article
DE Cardiovascular fluid mechanics; fluid-structure interaction; cerebral
aneurysms; pulsatile ventricular assist devices; stents; ALE methods; ST
methods; special techniques
ID FINITE-ELEMENT COMPUTATION; INCOMPRESSIBLE-FLOW COMPUTATIONS;
VARIATIONAL MULTISCALE METHOD; GENERALIZED-ALPHA METHOD; NAVIER-STOKES
EQUATIONS; LARGE-EDDY SIMULATION; SPACE-TIME PROCEDURE; MOVING
BOUNDARIES; CEREBRAL ANEURYSMS; BLOOD-FLOW
AB This paper provides a review of the space-time (ST) and Arbitrary Lagrangian-Eulerian (ALE) techniques developed by the first three authors' research teams for patient-specific cardiovascular fluid mechanics modeling, including fluid-structure interaction (FSI). The core methods are the ALE-based variational multiscale (ALE-VMS) method, the Deforming-Spatial-Domain/Stabilized ST formulation, and the stabilized ST FSI technique. A good number of special techniques targeting cardiovascular fluid mechanics have been developed to be used with the core methods. These include: (i) arterial-surface extraction and boundary condition techniques, (ii) techniques for using variable arterial wall thickness, (iii) methods for calculating an estimated zero-pressure arterial geometry, (iv) techniques for prestressing of the blood vessel wall, (v) mesh generation techniques for building layers of refined fluid mechanics mesh near the arterial walls, (vi) a special mapping technique for specifying the velocity profile at an inflow boundary with non-circular shape, (vii) a scaling technique for specifying a more realistic volumetric flow rate, (viii) techniques for the projection of fluid-structure interface stresses, (ix) a recipe for pre-FSI computations that improve the convergence of the FSI computations, (x) the Sequentially-Coupled Arterial FSI technique and its multiscale versions, (xi) techniques for calculation of the wall shear stress (WSS) and oscillatory shear index (OSI), (xii) methods for stent modeling and mesh generation, (xiii) methods for calculation of the particle residence time, and (xiv) methods for an estimated element-based zero-stress state for the artery. Here we provide an overview of the special techniques for WSS and OSI calculations, stent modeling and mesh generation, and calculation of the residence time with application to pulsatile ventricular assist device (PVAD). We provide references for some of the other special techniques. With results from earlier computations, we show how these core and special techniques work.
C1 [Takizawa, Kenji] Waseda Univ, Dept Modern Mech Engn, Shinjuku Ku, Tokyo 1698050, Japan.
[Takizawa, Kenji] Waseda Univ, Waseda Inst Adv Study, Shinjuku Ku, Tokyo 1698050, Japan.
[Bazilevs, Yuri; Marsden, Alison L.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Tezduyar, Tayfun E.; Schjodt, Kathleen] Rice Univ, Houston, TX 77005 USA.
[Long, Christopher C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Takizawa, K (reprint author), Waseda Univ, Dept Modern Mech Engn, Shinjuku Ku, 1-6-1 Nishi Waseda, Tokyo 1698050, Japan.
EM Kenji.Takizawa@tafsm.org
RI Takizawa, Kenji/E-2245-2013; Tezduyar, Tayfun/F-6134-2012
OI Takizawa, Kenji/0000-0003-1172-113X; Tezduyar,
Tayfun/0000-0001-8707-3162
NR 130
TC 26
Z9 26
U1 1
U2 28
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
SN 0218-2025
EI 1793-6314
J9 MATH MOD METH APPL S
JI Math. Models Meth. Appl. Sci.
PD NOV
PY 2014
VL 24
IS 12
DI 10.1142/S0218202514500250
PG 50
WC Mathematics, Applied
SC Mathematics
GA AO0OC
UT WOS:000341008600003
ER
PT J
AU Romero-Gomez, P
Richmond, MC
AF Romero-Gomez, Pedro
Richmond, Marshall C.
TI Simulating blade-strike on fish passing through marine hydrokinetic
turbines
SO RENEWABLE ENERGY
LA English
DT Article
DE Hydrokinetic; CFD; DES; Lagrangian particles; Tidal; Turbine
ID JUVENILE FISH; PASSAGE; SALMON; FLOW
AB The occurrence, frequency, and intensity of blade-strike of fish on an axial-flow marine hydrokinetic turbine was simulated using two modeling approaches: a novel scheme combining computational fluid dynamics (CFD) with Lagrangian particle tracking, and a conventional kinematic model. The kinematic model included simplifying assumptions of fish trajectories such as distribution and velocity. The proposed CFD and Lagrangian particle tracking methods provided a more realistic representation of blade-strike mechanisms by integrating the following components: (i) advanced unsteady turbulence simulation using detached eddy simulation (DES), (ii) generation of inflow turbulence based on field data, (iii) moving turbine blades in highly transient flows, and (iv) Lagrangian particles to mimic the potential fish pathways. The test conditions to evaluate the blade-strike probability and fish survival rate were: (i) the turbulence environment, (ii) the fish size, and (iii) the approaching flow velocity. The proposed Lagrangian method simulates potential fish trajectories and their interaction with the rotating turbine with the limitation that it does not include any volitional fish avoidance behavior. Depending upon the scenario, the percentage of particles that registered a collision event ranged from 6% to 19% of the released sample size. Next, by using a set of experimental correlations of the exposure-response for live fish colliding with moving blades, the simulated collision data were used as input variables to estimate the survival rate of fish passing through the operating turbine. The resulting survival rates were greater than 96% in all scenarios, which is comparable to or better than known survival rates for conventional hydropower turbines. The kinematic model predicted higher blade-strike probabilities and mortality rates than the Lagrangian particle-based method did. The Lagrangian method also offers the advantage of expanding the evaluation framework to include additional mechanisms of stress and injury on fish, or other aquatic biota, caused by hydrokinetic turbines and related devices. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Romero-Gomez, Pedro; Richmond, Marshall C.] Pacific NW Natl Lab, Hydrol Grp, Earth Syst Sci Div, Richland, WA 99352 USA.
RP Richmond, MC (reprint author), Pacific NW Natl Lab, Hydrol Grp, Earth Syst Sci Div, POB 999, Richland, WA 99352 USA.
EM marshall.richmond@pnnl.gov
RI Richmond, Marshall/D-3915-2013
OI Richmond, Marshall/0000-0003-0111-1485
FU U.S. Department of Energy, Energy Efficiency and Renewable Energy, Wind
and Water Power Program [DE-AC06-76RLO 1830]; U.S. Department of Energy
[DE-AC06-76RLO 1830]
FX This research was supported by the U.S. Department of Energy, Energy
Efficiency and Renewable Energy, Wind and Water Power Program (Contract
No. DE-AC06-76RLO 1830).; Pacific Northwest National Laboratory (PNNL)
is operated for the U.S. Department of Energy by Battelle Memorial
Institute under Contract No. DE-AC06-76RLO 1830.
NR 40
TC 4
Z9 4
U1 4
U2 37
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0960-1481
J9 RENEW ENERG
JI Renew. Energy
PD NOV
PY 2014
VL 71
BP 401
EP 413
DI 10.1016/j.renene.2014.05.051
PG 13
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels
SC Science & Technology - Other Topics; Energy & Fuels
GA AO0CL
UT WOS:000340976600045
ER
PT J
AU Gunawan, B
Neary, VS
Colby, J
AF Gunawan, Budi
Neary, Vincent S.
Colby, Jonathan
TI Tidal energy site resource assessment in the East River tidal strait,
near Roosevelt Island, New York, New York
SO RENEWABLE ENERGY
LA English
DT Article
DE Acoustic Doppler velocimeter; Hub-height velocity measurements;
Hydrokinetic power density; Roosevelt Island tidal energy site; Tidal
energy converter; Turbulence
ID PUGET-SOUND; FLOW; TURBULENCE; VESSEL; USA; WA
AB This study demonstrates a site resource assessment to examine the temporal variation of the current speeds, current directions, turbulence intensities, and power densities for a tidal energy site in the East River tidal strait. These variables were derived from two months of acoustic Doppler velocimeter (ADV) measurements at the design hub height of the Verdant Power Gen5 hydrokinetic turbine. The study site is a tidal strait that exhibits semi-diurnal tidal current characteristics, with a mean horizontal current speed of 1.4 m s(-1), and a turbulence intensity of 15% at a reference mean current of 2 m s(-1). Flood and ebb flow directions are nearly bi-directional, with a higher current speed during flood tide, which skews the power production towards the flood tide period. The tidal hydrodynamics at the site are highly regular, as indicated by the tidal current time series that resembles a sinusoidal function. This study also shows that the theoretical force and the power densities derived from the current measurements can be significantly influenced by the length of the time window used for averaging the current speed data. Furthermore, the theoretical power density at the site, derived from the current speed measurements, is one order of magnitude greater than that reported in the U.S. national resource assessment. This discrepancy highlights the importance of conducting site resource assessments based on measurements at the tidal energy converter device scale. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Gunawan, Budi; Neary, Vincent S.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Colby, Jonathan] Verdant Power Inc, New York, NY 10044 USA.
RP Gunawan, B (reprint author), Sandia Natl Labs, PO 5800,1515 Eubank Ave, Albuquerque, NM 87185 USA.
EM budi.gunawan@sandia.gov
FU U.S. Department of Energy's (DOE) Office of Energy Efficiency and
Renewable Energy, Wind and Water Power Technologies Program under the
DOE Advanced Water Power Project [DE-FG36-08GO18168/M001]; DOE Advanced
Water Power Project [DE -FG36-08GO18168.005]; U.S. Department of
Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
FX This research was supported by the U.S. Department of Energy's (DOE)
Office of Energy Efficiency and Renewable Energy, Wind and Water Power
Technologies Program under the DOE Advanced Water Power Project Grant
No. DE-FG36-08GO18168/M001, the DOE Advanced Water Power Project
Contract No. DE -FG36-08GO18168.005, titled: "Improved Structure and
Fabrication of Large, High-Power IMPS Rotors." Sandia National
Laboratories is a multiprogram laboratory managed and operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Corporation,
for the U.S. Department of Energy's National Nuclear Security
Administration under contract DE-AC04-94AL85000. The authors thank Dean
Corren and Mary Ann Adonizio of Verdant Power, as well as the reviewers
of this paper, for their helpful comments and suggestions.
NR 40
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Z9 8
U1 1
U2 30
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0960-1481
J9 RENEW ENERG
JI Renew. Energy
PD NOV
PY 2014
VL 71
BP 509
EP 517
DI 10.1016/j.renene.2014.06.002
PG 9
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels
SC Science & Technology - Other Topics; Energy & Fuels
GA AO0CL
UT WOS:000340976600057
ER
PT J
AU Khairallah, SA
Anderson, A
AF Khairallah, Saad A.
Anderson, Andy
TI Mesoscopic simulation model of selective laser melting of stainless
steel powder
SO JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
LA English
DT Article
DE Additive manufacturing; Selective laser melting; Fluid dynamics; Heat
transfer; First-principles simulation
ID METALLIC POWDERS; RADIATION; BED
AB A 3D mesoscopic model is developed to simulate selective laser melting processes using the ALE3D multiphysics code. We study the laser-induced melting of a random bed of stainless steel 316 particles on a solid substrate (1000 mu m x 300 mu m x 50 mu m) and its solidification into either a continuous track or a discontinuous track as a result of Plateau Rayleigh instability. Our approach couples thermal diffusion to hydrodynamics and accounts for temperature dependent material properties and surface tension, as well as the random particle distribution. The simulations give new physical insight that should prove useful for development of continuum models, where the powder is homogenized. We validate our approach against the experiment and find that we match the main laser track characteristics. Published by Elsevier B.V.
C1 [Khairallah, Saad A.; Anderson, Andy] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Khairallah, SA (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM khairallah1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Laboratory Directed Research and Development
Program at LLNL [13-SI-002]
FX We would like to thank Al Nichols III for his help with the thermal
package in ALE3D. Also, we acknowledge fruitful discussions with Sasha
Rubenshick, Wayne King and Bob Ferencz. This work was performed under
the auspices of the U.S. Department of Energy by Lawrence Livermore
National Laboratory under Contract DE-AC52-07NA27344. This work was
funded by the Laboratory Directed Research and Development Program at
LLNL under project tracking code 13-SI-002. The LLNL document review and
release number is LLNL-JRNL-649602.
NR 19
TC 31
Z9 31
U1 24
U2 129
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0924-0136
J9 J MATER PROCESS TECH
JI J. Mater. Process. Technol.
PD NOV
PY 2014
VL 214
IS 11
BP 2627
EP 2636
DI 10.1016/j.jmatprotec.2014.06.001
PG 10
WC Engineering, Industrial; Engineering, Manufacturing; Materials Science,
Multidisciplinary
SC Engineering; Materials Science
GA AN0UV
UT WOS:000340300400046
ER
PT J
AU O'Brien, TA
Collins, WD
Rauscher, SA
Ringler, TD
AF O'Brien, Travis A.
Collins, William D.
Rauscher, Sara A.
Ringler, Todd D.
TI Reducing the computational cost of the ECF using a nuFFT: A fast and
objective probability density estimation method
SO COMPUTATIONAL STATISTICS & DATA ANALYSIS
LA English
DT Article
DE Empirical characteristic function; ECF; Kernel density estimation;
Histogram; Nonuniform FFT; nuFFT
ID EMPIRICAL CHARACTERISTIC FUNCTION; AQUAPLANET SIMULATIONS;
PRECIPITATION; SPECTRA; MODELS; CLOUDS; SERIES
AB A nonuniform, fast Fourier transform can be used to reduce the computational cost of the empirical characteristic function (ECF) by a factor of 100. This fast ECF calculation method is applied to a new, objective, and robust method for estimating the probability distribution of univariate data, which effectively modulates and filters the ECF of a dataset in a way that yields an optimal estimate of the (Fourier transformed) underlying distribution. This improvement in computational efficiency is leveraged to estimate probability densities from a large ensemble of atmospheric velocity increments (gradients), with the purpose of characterizing the statistical and fractal properties of the velocity field. It is shown that the distribution of velocity increments depends on location in an atmospheric model and that the increments are clearly not normally distributed. The estimated increment distributions exhibit self-similar and distinctly multifractal behavior, as shown by structure functions that exhibit power-law scaling with a non-linear dependence of the power-law exponent on the structure function order. Published by Elsevier B.V.
C1 [O'Brien, Travis A.; Collins, William D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Collins, William D.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Rauscher, Sara A.] Univ Delaware, Newark, DE USA.
[Ringler, Todd D.] Los Alamos Natl Lab, Los Alamos, NM USA.
RP O'Brien, TA (reprint author), 1 Cyclotron Rd,MS84R-0171, Berkeley, CA 94720 USA.
EM TAOBrien@lbl.gov
RI O'Brien, Travis/M-5250-2013; Collins, William/J-3147-2014
OI O'Brien, Travis/0000-0002-6643-1175; Collins,
William/0000-0002-4463-9848
FU Office of Science, Office of Biological and Environmental Research of
the US Department of Energy Regional and Global Climate Modeling Program
(RGCM); Office of Science of the US Department of Energy
[DE-AC02-05CH11231]
FX This research was supported by the Director, Office of Science, Office
of Biological and Environmental Research of the US Department of Energy
Regional and Global Climate Modeling Program (RGCM) and 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.
NR 36
TC 1
Z9 1
U1 1
U2 18
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-9473
EI 1872-7352
J9 COMPUT STAT DATA AN
JI Comput. Stat. Data Anal.
PD NOV
PY 2014
VL 79
BP 222
EP 234
DI 10.1016/j.csda.2014.06.002
PG 13
WC Computer Science, Interdisciplinary Applications; Statistics &
Probability
SC Computer Science; Mathematics
GA AM8PQ
UT WOS:000340139900016
ER
PT J
AU Kesler, M
Ozdemir, E
Kisacikoglu, MC
Tolbert, LM
AF Kesler, Metin
Ozdemir, Engin
Kisacikoglu, Mithat C.
Tolbert, Leon M.
TI Power Converter-Based Three-Phase Nonlinear Load Emulator for a Hardware
Testbed System
SO IEEE TRANSACTIONS ON POWER ELECTRONICS
LA English
DT Article
DE Three-phase diode bridge rectifier; emulator; hardware testbed (HTB);
nonlinear load; power converter
ID THE-LOOP SIMULATION; DESIGN; ELECTRONICS; PLATFORM; DRIVES
AB A three-phase nonlinear load emulator using a power electronic converter is presented in this study. The proposed nonlinear load emulator is intended to be used in an ultrawide-area grid transmission network emulator, also called hardware testbed (HTB). The emulator converter is controlled in rectifier mode to act as the real nonlinear three-phase diode rectifier load. This paper presents an accurate controller for the nonlinear load emulator based on a three-phase diode rectifier system to be used in the HTB. This study also demonstrates simulation and experimental results for verification of the proposed controller.
C1 [Kesler, Metin] Bilecik Seyh Edebali Univ, Dept Comp Engn, TR-11210 Bilecik, Turkey.
[Ozdemir, Engin] Kocaeli Univ, TR-41300 Izmit, Turkey.
[Kisacikoglu, Mithat C.] Sci & Technol Res Council Turkey TUBITAK, TR-06100 Ankara, Turkey.
[Tolbert, Leon M.] Univ Tennessee, Oak Ridge, TN 37831 USA.
[Tolbert, Leon M.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Kesler, M (reprint author), Bilecik Seyh Edebali Univ, Dept Comp Engn, TR-11210 Bilecik, Turkey.
EM metin.kesler@bilecik.edu.tr; eozdemir@kocaeli.edu.tr;
mithat.kisacikoglu@tubitak.gov.tr; tolbert@utk.edu
OI Ozdemir, Engin/0000-0003-0882-332X; Tolbert, Leon/0000-0002-7285-609X
FU Engineering Research Center Program of the National Science Foundation;
Department of Energy under NSF [EEC-1041877]; CURENT Industry
Partnership Program; TUBITAK(The Scientific and Technological Research
Council of Turkey) via its BIDEB-2219 program; YOK (Turkish Higher
Education Council)
FX This work was supported by the Engineering Research Center Program of
the National Science Foundation, the Department of Energy under NSF
Award EEC-1041877, the CURENT Industry Partnership Program and
TUBITAK(The Scientific and Technological Research Council of Turkey) via
its BIDEB-2219 program. This study is also supported by YOK (Turkish
Higher Education Council). Recommended for publication by Associate
Editor P. Chi-Kwong Luk.
NR 22
TC 2
Z9 2
U1 0
U2 12
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8993
EI 1941-0107
J9 IEEE T POWER ELECTR
JI IEEE Trans. Power Electron.
PD NOV
PY 2014
VL 29
IS 11
BP 5806
EP 5812
DI 10.1109/TPEL.2014.2301815
PG 7
WC Engineering, Electrical & Electronic
SC Engineering
GA AM1PJ
UT WOS:000339619400017
ER
PT J
AU Johnson, BB
Dhople, SV
Hamadeh, AO
Krein, PT
AF Johnson, Brian B.
Dhople, Sairaj V.
Hamadeh, Abdullah O.
Krein, Philip T.
TI Synchronization of Parallel Single-Phase Inverters With Virtual
Oscillator Control
SO IEEE TRANSACTIONS ON POWER ELECTRONICS
LA English
DT Article
DE Distributed ac power systems; inverters; microgrids; nonlinear control;
oscillators; synchronization; uninterruptible power supplies; voltage
source inverters
ID DISTRIBUTED GENERATION SYSTEMS; DROOP CONTROL METHOD; AUTONOMOUS
OPERATION; LCL-FILTER; MICROGRIDS; VOLTAGE; DESIGN; AC; PERFORMANCE;
CONVERTERS
AB A method to synchronize and control a system of parallel single-phase inverters without communication is presented. Inspired by the phenomenon of synchronization in networks of coupled oscillators, we propose that each inverter be controlled to emulate the dynamics of a nonlinear dead-zone oscillator. As a consequence of the electrical coupling between inverters, they synchronize and share the load in proportion to their ratings. We outline a sufficient condition for global asymptotic synchronization and formulate a methodology for controller design such that the inverter terminal voltages oscillate at the desired frequency, and the load voltage is maintained within prescribed bounds. We also introduce a technique to facilitate the seamless addition of inverters controlled with the proposed approach into an energized system. Experimental results for a system of three inverters demonstrate power sharing in proportion to power ratings for both linear and nonlinear
C1 [Johnson, Brian B.] Natl Renewable Energy Lab, Power Syst Engn Ctr, Golden, CO 80401 USA.
[Dhople, Sairaj V.] Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA.
[Hamadeh, Abdullah O.] MIT, Dept Mech Engn, Cambridge, MA 02139 USA.
[Krein, Philip T.] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA.
RP Johnson, BB (reprint author), Natl Renewable Energy Lab, Power Syst Engn Ctr, Golden, CO 80401 USA.
EM brian.johnson@NREL.GOV; sdhople@UMN.EDU; ahamadeh@MIT.EDU;
krein@ILLINOIS.EDU
FU National Science Foundation Graduate Research Fellowship; Grainger
Center for Electric Machinery and Electromechanics at the University of
Illinois; Global Climate and Energy Project at Stanford University
FX The work of B. B. Johnson was supported in part by the National Science
Foundation Graduate Research Fellowship and the Grainger Center for
Electric Machinery and Electromechanics at the University of Illinois.
The work of P. T. Krein was supported in part by the Global Climate and
Energy Project at Stanford University. Recommended for publication by
Associate Editor P. C. Loh.
NR 57
TC 18
Z9 20
U1 1
U2 19
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8993
EI 1941-0107
J9 IEEE T POWER ELECTR
JI IEEE Trans. Power Electron.
PD NOV
PY 2014
VL 29
IS 11
BP 6124
EP 6138
DI 10.1109/TPEL.2013.2296292
PG 15
WC Engineering, Electrical & Electronic
SC Engineering
GA AM1PJ
UT WOS:000339619400044
ER
PT J
AU Onen, A
Woyak, J
Arghandeh, R
Jung, J
Scirbona, C
Broadwater, RP
AF Onen, Ahmet
Woyak, Jeremy
Arghandeh, Reza
Jung, Jaesung
Scirbona, Charlie
Broadwater, Robert P.
TI Time-varying cost of loss evaluation in distribution networks using
market marginal price
SO INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
LA English
DT Article
DE Locational marginal price; Distribution network; Phase balancing; Hourly
load
AB In the electric power system planning process, engineers seek to identify the most cost-effective means of serving the load within reliability and power quality criteria. In order to accurately assess the cost of a given project, the feeder losses must be calculated. In the past, it was necessary to estimate the feeder losses based upon the peak load and a calculated load factor for the year. The cost of these losses would then be calculated based upon an expected, fixed per-kW h generation cost. This paper presents a more accurate means of calculating the cost of losses, using hourly feeder load information and time-varying electric energy cost data. This paper attempts to quantify the improvement in accuracy and presents an example where the economic evaluation of a planning project requires the more accurate loss calculation. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Onen, Ahmet] Minist Natl Educ, Ankara, Turkey.
[Broadwater, Robert P.] Virginia Polytech Inst & State Univ, Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
[Jung, Jaesung] Brookhaven Natl Lab, Sustainable Energy Technol Dept, Upton, NY 11973 USA.
[Arghandeh, Reza] Univ Calif Berkeley, Calif Inst Energy & Environm, Berkeley, CA 94720 USA.
[Woyak, Jeremy; Broadwater, Robert P.] Elect Distribut Design Inc, Blacksburg, VA USA.
[Scirbona, Charlie] Orange & Rockland Util, New York, NY USA.
RP Onen, A (reprint author), Virginia Tech, 302 Whittemore Hall, Blacksburg, VA 24061 USA.
EM aonen@vt.edu
RI Onen, Ahmet/N-6632-2014;
OI Onen, Ahmet/0000-0001-7086-5112
FU Electrical Distribution Design, Inc, Orange Rockland
FX The authors would like to thank Electrical Distribution Design, Inc,
Orange & Rockland for providing data, funding, and technical assistance.
NR 18
TC 3
Z9 3
U1 0
U2 17
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0142-0615
EI 1879-3517
J9 INT J ELEC POWER
JI Int. J. Electr. Power Energy Syst.
PD NOV
PY 2014
VL 62
BP 712
EP 717
DI 10.1016/j.ijepes.2014.05.028
PG 6
WC Engineering, Electrical & Electronic
SC Engineering
GA AM1JF
UT WOS:000339601500074
ER
PT J
AU Xia, YZ
Li, TL
Ren, F
Gao, YF
Wang, H
AF Xia, Yuzhi
Li, Tianlei
Ren, Fei
Gao, Yanfei
Wang, Hsin
TI Failure analysis of pinch torsion tests as a thermal runaway risk
evaluation method of Li-ion cells
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Li-ion battery; Finite element analysis; Pinch torsion test; Fracture;
Internal short circuit
ID SIMULATION; BATTERIES; SAFETY
AB Recently a pinch torsion test is developed for safety testing of Li-ion batteries. It has been demonstrated that this test can generate small internal short-circuit spots in the separator in a controllable and repeatable manner. In the current research, the failure mechanism is examined by numerical simulations and comparisons to experimental observations. Finite element models are developed to evaluate the deformation of the separators under both pure pinch and pinch torsion loading conditions. It is discovered that the addition of the torsion component significantly increased the maximum first principal strain, which is believed to induce the internal short circuit. In addition, the applied load in the pinch torsion test is significantly less than in the pure pinch test, thus dramatically improving the applicability of this method to ultra-thick batteries which otherwise require heavy load in excess of machine capability. It is further found that the separator failure is achieved in the early stage of torsion (within a few degree of rotation). Effect of coefficient of friction on the maximum first principal strain is also examined. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Xia, Yuzhi; Gao, Yanfei] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Li, Tianlei] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
[Ren, Fei] Temple Univ, Dept Mech Engn, Philadelphia, PA 19122 USA.
[Gao, Yanfei; Wang, Hsin] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RP Wang, H (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
EM wangh2@ornl.gov
RI Gao, Yanfei/F-9034-2010; Wang, Hsin/A-1942-2013
OI Gao, Yanfei/0000-0003-2082-857X; Wang, Hsin/0000-0003-2426-9867
FU Office of Vehicle Technologies of the Department of Energy-Oak Ridge
National Laboratory [DE-AC05-000R22725]; UT-Battelle, LLC; NSF [CMMI
0900027]; U.S. Department of Energy, Basic Energy Sciences, Materials
Sciences and Engineering Division (YFG); College of Engineering at
Temple University; State of Florida; National Science Foundation through
NSF Cooperative Grant [DMR 0654118]
FX This work was sponsored by the Office of Vehicle Technologies of the
Department of Energy and was carried out at Oak Ridge National
Laboratory under contract DE-AC05-000R22725 with UT-Battelle, LLC. The
authors acknowledge the support from NSF CMMI 0900027 (YZX), and the
U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and
Engineering Division (YFG). FR would like to thank the College of
Engineering at Temple University for its financial support during
manuscript preparation. TLT would like to acknowledge the support in
part by the State of Florida and the National Science Foundation through
NSF Cooperative Grant DMR 0654118.
NR 18
TC 5
Z9 6
U1 1
U2 30
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
EI 1873-2755
J9 J POWER SOURCES
JI J. Power Sources
PD NOV 1
PY 2014
VL 265
BP 356
EP 362
DI 10.1016/j.jpowsour.2014.04.040
PG 7
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA AJ7LY
UT WOS:000337879400046
ER
PT J
AU Kus, P
Solin, P
Andrs, D
AF Kus, Pavel
Solin, Pavel
Andrs, David
TI Arbitrary-level hanging nodes for adaptive hp-FEM approximations in 3D
SO JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
LA English
DT Article; Proceedings Paper
CT 4th international conference on finite element methods in engineering
and sciences (FEMTEC)
CY MAY 19-24, 2013
CL Las Vegas, NV
DE Finite element method; Higher-order elements; Constrained approximation;
Irregular meshes; Arbitrary-level hanging nodes; Automatic adaptivity
AB In this paper we discuss constrained approximation with arbitrary-level hanging nodes in adaptive higher-order finite element methods (hp-FEM) for three-dimensional problems. This technique enables using highly irregular meshes, and it greatly simplifies the design of adaptive algorithms as it prevents refinements from propagating recursively through the finite element mesh. The technique makes it possible to design efficient adaptive algorithms for purely hexahedral meshes. We present a detailed mathematical description of the method and illustrate it with numerical examples. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Kus, Pavel; Solin, Pavel] Univ W Bohemia, RICE, Plzen, Czech Republic.
[Kus, Pavel] Univ W Bohemia, KTE, Plzen, Czech Republic.
[Solin, Pavel] Univ Nevada, Reno, NV 89557 USA.
[Andrs, David] INL, Dept Fuels Modeling & Simulat, Idaho Falls, ID USA.
RP Kus, P (reprint author), Univ 8, Plzen 30614, Czech Republic.
EM pkus@rice.zcu.cz; solin@unr.edu; david.andrs@inl.gov
RI Kus, Pavel/H-4757-2013
FU European Regional Development Fund; Ministry of Education, Youth and
Sports of the Czech Republic (Regional Innovation Centre for Electrical
Engineering RICE) [CZ.1.05/2.1.00/03.0094]; GACR [P102/11/0498]
FX This work was supported by the European Regional Development Fund and
Ministry of Education, Youth and Sports of the Czech Republic (Project
No. CZ.1.05/2.1.00/03.0094: Regional Innovation Centre for Electrical
Engineering RICE) and Grant project GACR P102/11/0498.
NR 11
TC 5
Z9 5
U1 1
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0377-0427
EI 1879-1778
J9 J COMPUT APPL MATH
JI J. Comput. Appl. Math.
PD NOV
PY 2014
VL 270
BP 121
EP 133
DI 10.1016/j.cam.2014.02.010
PG 13
WC Mathematics, Applied
SC Mathematics
GA AJ4QE
UT WOS:000337660100013
ER
PT J
AU Yang, D
Moridis, GJ
Blasingame, TA
AF Yang, Daegil
Moridis, George J.
Blasingame, Thomas A.
TI A fully coupled multiphase flow and geomechanics solver for highly
heterogeneous porous media
SO JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
LA English
DT Article; Proceedings Paper
CT 4th international conference on finite element methods in engineering
and sciences (FEMTEC)
CY MAY 19-24, 2013
CL Las Vegas, NV
DE Coupled multiphase flow and geomechanics; Heterogeneous media; FEM
ID MULTIPOINT FLUX APPROXIMATIONS; FINITE-ELEMENT-METHOD; QUADRILATERAL
GRIDS; DISCONTINUOUS GALERKIN; EFFECTIVE ELASTICITY; MIXED METHODS;
RESERVOIR; SIMULATION; PRESSURE; ROCKS
AB This paper introduces a fully coupled multiphase flow and geomechanics solver that can be applied to modeling highly heterogeneous porous media. Multiphase flow in deformable porous media is a multiphysics problem that considers the flow physics and rock physics simultaneously. To model this problem, the multiphase flow equations and geomechanical equilibrium equation must be tightly coupled. Conventional finite element modeling of coupled flow and geomechanics does not conserve mass locally since it uses continuous basis functions. Mixed finite element discretization that satisfies local mass conservation of the flow equation can be a good solution for this problem. In addition, the stabilized finite element method for discretizing the saturation equation minimizes numerical diffusion and provides better resolution of saturation solution.
In this work, we developed a coupled multiphase flow and geomechanics solver that solves fully coupled governing equations, namely pressure, velocity, saturation, and geomechanical equilibrium equations. The solver can deal with full tensor permeability and elastic stiffness for modeling a highly heterogeneous reservoir system.
The results of the numerical experiments are very encouraging. We used the solver to simulate a reservoir system that has very heterogeneous permeability and elastic stiffness fields and found that the numerical solution captures the complex multiphysics of the system. In addition, we obtained higher resolution of saturation solution than with the conventional finite volume discretization. This would help us make a better estimate of the numerical solution of complex multiphysics problems. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Yang, Daegil] Chevron Energy Technol Co, Houston, TX 77002 USA.
[Moridis, George J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Moridis, George J.; Blasingame, Thomas A.] Texas A&M Univ, Harold Vance Dept Petr Engn, College Stn, TX 77843 USA.
RP Yang, D (reprint author), Chevron Energy Technol Co, Houston, TX 77002 USA.
EM daegil.yang@gmail.com
FU RPSEA [08122-45]
FX This work was supported by RPSEA (Contract No. 08122-45) through the
Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum
Resources Research and Development Program as authorized by the United
States Energy Policy Act of 2005.
NR 53
TC 2
Z9 2
U1 1
U2 26
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0377-0427
EI 1879-1778
J9 J COMPUT APPL MATH
JI J. Comput. Appl. Math.
PD NOV
PY 2014
VL 270
BP 417
EP 432
DI 10.1016/j.cam.2013.12.029
PG 16
WC Mathematics, Applied
SC Mathematics
GA AJ4QE
UT WOS:000337660100037
ER
PT J
AU Price, MN
Ray, J
Wetmore, KM
Kuehl, JV
Bauer, S
Deutschbauer, AM
Arkin, AP
AF Price, Morgan N.
Ray, Jayashree
Wetmore, Kelly M.
Kuehl, Jennifer V.
Bauer, Stefan
Deutschbauer, Adam M.
Arkin, Adam P.
TI The genetic basis of energy conservation in the sulfate-reducing
bacterium Desulfovibrio alaskensis G20
SO FRONTIERS IN MICROBIOLOGY
LA English
DT Article
DE energy metabolism; sulfate reducing bacteria; membrane complexes;
Desulfovibrio; electron bifurcation
ID VULGARIS HILDENBOROUGH; GENOME SEQUENCE; REDUCTION; HYDROGEN;
DESULFURICANS; METABOLISM; MECHANISM; DELETION; COMPLEX; GROWTH
AB Sulfate-reducing bacteria play major roles in the global carbon and sulfur cycles, but it remains unclear how reducing sulfate yields energy. To determine the genetic basis of energy conservation, we measured the fitness of thousands of pooled mutants of Desulfovibrio alaskensis G20 during growth in 12 different combinations of electron donors and acceptors. We show that ion pumping by the ferredoxin:NADH oxidoreductase Rnf is required whenever substrate-level phosphorylation is not possible. The uncharacterized complex Hdr/flox-1 (Dde_1207:13) is sometimes important alongside Rnf and may perform an electron bifurcation to generate more reduced ferredoxin from NADH to allow further ion pumping. Similarly, during the oxidation of malate or fumarate, the electron-bifurcating transhydrogenase NfnAB-2 (Dde_1250:1) is important and may generate reduced ferredoxin to allow additional ion pumping by Rnf. During formate oxidation, the periplasmic [NiFeSe] hydrogenase HysAB is required, which suggests that hydrogen forms in the periplasm, diffuses to the cytoplasm, and is used to reduce ferredoxin, thus providing a substrate for Rnf. During hydrogen utilization, the transmembrane electron transport complex Tmc is important and may move electrons from the periplasm into the cytoplasmic sulfite reduction pathway. Finally, mutants of many other putative electron carriers have no clear phenotype, which suggests that they are not important under our growth conditions, although we cannot rule out genetic redundancy.
C1 [Price, Morgan N.; Ray, Jayashree; Wetmore, Kelly M.; Kuehl, Jennifer V.; Deutschbauer, Adam M.; Arkin, Adam P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Bauer, Stefan; Arkin, Adam P.] Univ Calif Berkeley, Energy Biosci Inst, Berkeley, CA 94720 USA.
[Arkin, Adam P.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
RP Price, MN (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd Mail Stop 955-512L, Berkeley, CA 94720 USA.
EM morgannprice@yahoo.com; aparkin@lbl.gov
RI Ray, Jayashree/F-9162-2016; Arkin, Adam/A-6751-2008;
OI Arkin, Adam/0000-0002-4999-2931; Kuehl, Jennifer/0000-0003-2813-2518
FU Office of Science, Office of Biological and Environmental Research, of
the U. S. Department of Energy [DE-AC02-05CH11231]
FX This work conducted by ENIGMA was supported by the Office of Science,
Office of Biological and Environmental Research, of the U. S. Department
of Energy under Contract No. DE-AC02-05CH11231. The funders had no role
in study design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 31
TC 13
Z9 13
U1 5
U2 17
PU FRONTIERS MEDIA SA
PI LAUSANNE
PA PO BOX 110, EPFL INNOVATION PARK, BUILDING I, LAUSANNE, 1015,
SWITZERLAND
SN 1664-302X
J9 FRONT MICROBIOL
JI Front. Microbiol.
PD OCT 31
PY 2014
VL 5
AR 577
DI 10.3389/fmicb.2014.00577
PG 20
WC Microbiology
SC Microbiology
GA CO5GF
UT WOS:000359186900001
PM 25400629
ER
EF