FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Strycharz-Glaven, SM
Glaven, RH
Wang, Z
Zhou, J
Vora, GJ
Tender, LM
AF Strycharz-Glaven, Sarah M.
Glaven, Richard H.
Wang, Zheng
Zhou, Jing
Vora, Gary J.
Tender, Leonard M.
TI Electrochemical Investigation of a Microbial Solar Cell Reveals a
Nonphotosynthetic Biocathode Catalyst
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID IRON-OXIDIZING BACTERIA; FUEL-CELLS; BIOFILMS; REDUCTION;
MICROORGANISMS; COMMUNITY; GROWTH; ENERGY; MAT
AB Microbial solar cells (MSCs) are microbial fuel cells (MFCs) that generate their own oxidant and/or fuel through photosynthetic reactions. Here, we present electrochemical analyses and biofilm 16S rRNA gene profiling of biocathodes of sediment/seawater-based MSCs inoculated from the biocathode of a previously described sediment/seawater-based MSC. Electrochemical analyses indicate that for these second-generation MSC biocathodes, catalytic activity diminishes over time if illumination is provided during growth, whereas it remains relatively stable if growth occurs in the dark. For both illuminated and dark MSC biocathodes, cyclic voltammetry reveals a catalytic-current-potential dependency consistent with heterogeneous electron transfer mediated by an insoluble microbial redox cofactor, which was conserved following enrichment of the dark MSC biocathode using a three-electrode configuration. 16S rRNA gene profiling showed Gammaproteobacteria, most closely related to Marinobacter spp., predominated in the enriched biocathode. The enriched biocathode biofilm is easily cultured on graphite cathodes, forms a multimicrobe-thick biofilm (up to 8.2 mu m), and does not lose catalytic activity after exchanges of the reactor medium. Moreover, the consortium can be grown on cathodes with only inorganic carbon provided as the carbon source, which may be exploited for proposed bioelectrochemical systems for electrosynthesis of organic carbon from carbon dioxide. These results support a scheme where two distinct communities of organisms develop within MSC biocathodes: one that is photosynthetically active and one that catalyzes reduction of O-2 by the cathode, where the former partially inhibits the latter. The relationship between the two communities must be further explored to fully realize the potential for MSC applications.
C1 [Strycharz-Glaven, Sarah M.; Wang, Zheng; Vora, Gary J.; Tender, Leonard M.] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
[Glaven, Richard H.] Nova Res Inc, Alexandria, VA USA.
[Zhou, Jing] IBM Almaden Res Ctr, San Jose, CA USA.
RP Strycharz-Glaven, SM (reprint author), USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
EM sarah.glaven@nrl.navy.mil
OI Vora, Gary/0000-0002-0657-8597
FU Office of Naval Research via U.S. Naval Research Laboratory core funds
FX This work was supported by the Office of Naval Research via U.S. Naval
Research Laboratory core funds.
NR 39
TC 19
Z9 19
U1 2
U2 106
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD JUL
PY 2013
VL 79
IS 13
BP 3933
EP 3942
DI 10.1128/AEM.00431-13
PG 10
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 158QB
UT WOS:000319986200005
PM 23603672
ER
PT J
AU Broom, MA
Smith, SL
AF Broom, Matthew A.
Smith, Stephanie L.
TI Late Presentation of Neonatal Omphalitis Following Dry Cord Care
SO CLINICAL PEDIATRICS
LA English
DT Article
ID TRIAL
C1 [Broom, Matthew A.] St Louis Univ, Sch Med, Cardinal Glennon Childrens Med Ctr, St Louis, MO 63104 USA.
[Smith, Stephanie L.] USN, Med Ctr Portsmouth, Portsmouth, VA USA.
RP Broom, MA (reprint author), St Louis Univ, Sch Med, Cardinal Glennon Childrens Med Ctr, Dept Pediat, 1465 South Grand Blvd, St Louis, MO 63104 USA.
EM broomma@slu.edu
OI Broom, Matthew/0000-0003-4147-2314
NR 10
TC 0
Z9 0
U1 0
U2 9
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0009-9228
J9 CLIN PEDIATR
JI Clin. Pediatr.
PD JUL
PY 2013
VL 52
IS 7
BP 675
EP 677
DI 10.1177/0009922812446745
PG 3
WC Pediatrics
SC Pediatrics
GA 156IW
UT WOS:000319816300016
PM 22615485
ER
PT J
AU Wolbrecht, E
Anderson, M
Canning, J
Edwards, D
Frenzel, J
Odell, D
Bean, T
Stringfield, J
Feusi, J
Armstrong, B
Folk, A
Crosbie, B
AF Wolbrecht, Eric
Anderson, Michael
Canning, John
Edwards, Dean
Frenzel, Jim
Odell, Doug
Bean, Tom
Stringfield, Jordan
Feusi, J.
Armstrong, B.
Folk, A.
Crosbie, B.
TI Field Testing of Moving Short-baseline Navigation for Autonomous
Underwater Vehicles using Synchronized Acoustic Messaging
SO JOURNAL OF FIELD ROBOTICS
LA English
DT Article
ID SURFACE CRAFT; LOCALIZATION
AB This paper presents the results from field testing of a unique approach to the navigation of a fleet of autonomous underwater vehicles (AUVs) using only onboard sensors and information provided by a moving surface ship. The approach, considered moving short-baseline (MSBL) navigation, uses two transponders mounted on a single surface ship that alternately broadcast acoustic messages containing one of the parameters of the kinematic state of the surface ship. The broadcasts are initiated according to a predefined schedule so that the one-way travel time (OWTT) of the acoustic messages may be used to determine the range to the transponder. Each AUV in the fleet uses the surface ship state measurements and ranges provided by the acoustic messages in two extended Kalman filters (EKFs) for state estimation. The first EKF merges the intermittent surface ship state measurements with a kinematic model to estimate the state of the surface ship. This is necessary because the presented approach uses 13-bit acoustic messages as opposed to the more commonly used 32-byte messages, which allow the full state to be encoded in a single broadcast. The second EKF uses the current surface ship state estimate to properly interpret the acoustic ranges, combining them with a kinematic model to estimate the state of the AUV itself. Numerous MSBL navigation experiments were compared against a more traditional approach using a long-baseline (LBL) array of transponders and OWTT acoustic ranging. The results of all tests were verified by independent LBL measures of position. (C) 2013 Wiley Periodicals, Inc.
C1 [Wolbrecht, Eric; Anderson, Michael; Canning, John] Univ Idaho, Dept Mech Eng, Moscow, ID 83843 USA.
[Edwards, Dean] Univ Idaho, Dept Chem Eng, Moscow, ID 83843 USA.
[Frenzel, Jim] Univ Idaho, Dept Elect Eng, Moscow, ID 83843 USA.
[Odell, Doug] USN, Ctr Surface Warfare, Carderock Div, Acoust Res Detachment, Stennis Space Ctr, MS USA.
[Bean, Tom; Stringfield, Jordan; Feusi, J.; Armstrong, B.; Folk, A.; Crosbie, B.] Univ Idaho, Moscow, ID 83843 USA.
RP Wolbrecht, E (reprint author), Univ Idaho, Dept Mech Eng, Moscow, ID 83843 USA.
EM ewolbrec@uidaho.edu; anderson@uidaho.edu; Dedwards@uidaho.edu
FU U.S. Office of Naval Research [ONR N00014-09-1-0711, N00014-10-1-0883]
FX This work was supported by the U.S. Office of Naval Research (ONR
N00014-09-1-0711 and N00014-10-1-0883).
NR 58
TC 5
Z9 5
U1 2
U2 20
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1556-4959
J9 J FIELD ROBOT
JI J. Field Robot.
PD JUL-AUG
PY 2013
VL 30
IS 4
BP 519
EP 535
DI 10.1002/rob.21460
PG 17
WC Robotics
SC Robotics
GA 160FR
UT WOS:000320103400002
ER
PT J
AU Isheim, D
Hunter, AH
Zhang, XJ
Seidman, DN
AF Isheim, Dieter
Hunter, Allen H.
Zhang, Xian J.
Seidman, David N.
TI Nanoscale Analyses of High-Nickel Concentration Martensitic
High-Strength Steels
SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND
MATERIALS SCIENCE
LA English
DT Article; Proceedings Paper
CT Symposium on Phase Transformations and Deformation in Magnesium Alloys
CY JUL, 2012
CL Orlando, FL
ID ATOM-PROBE TOMOGRAPHY; NAVAL HULL STEELS; LOW-CARBON STEEL; RETAINED
AUSTENITE; PRECIPITATED AUSTENITE; 9NI STEEL; SUBNANOMETER SCALE;
TRANSFORMATION; SEGREGATION; TOUGHNESS
AB Austenite reversion in martensitic steels is known to improve fracture toughness. This research focuses on characterizing mechanical properties and the microstructure of low-carbon, high-nickel steels containing 4.5 and 10 wt pct Ni after a QLT-type austenite reversion heat treatment: first, martensite is formed by quenching (Q) from a temperature in the single-phase austenite field, then austenite is precipitated by annealing in the upper part of the intercritical region in a lamellarization step (L), followed by a tempering (T) step at lower temperatures. For the 10 wt pct Ni steel, the tensile strength after the QLT heat treatment is 910 MPa (132 ksi) at 293 K (20 A degrees C), and the Charpy V-notch impact toughness is 144 J (106 ft-lb) at 188.8 K (-84.4 A degrees C, -120 A degrees F). For the 4.5 wt pct Ni steel, the tensile strength is 731 MPa (106 ksi) at 293 K (20 A degrees C) and the impact toughness is 209 J (154 ft-lb) at 188.8 K (-84.4 A degrees C, -120 A degrees F). Light optical microscopy, scanning electron and transmission electron microscopies, synchrotron X-ray diffraction, and local-electrode atom-probe tomography (APT) are utilized to determine the morphologies, volume fractions, and local chemical compositions of the precipitated phases with sub-nanometer spatial resolution. The austenite lamellae are up to 200 nm in thickness, and up to several micrometers in length. In addition to the expected partitioning of Ni to austenite, APT reveals a substantial segregation of Ni at the austenite/martensite interface with concentration maxima of 10 and 23 wt pct Ni for the austenite lamellae in the 4.5 and 10 wt pct Ni steels, respectively. Copper-rich and M2C-type metal carbide precipitates were detected both at the austenite/martensite interface and within the bulk of the austenite lamellae. Thermodynamic phase stability, equilibrium compositions, and volume fractions are discussed in the context of Thermo-Calc calculations.
C1 [Isheim, Dieter; Hunter, Allen H.; Seidman, David N.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
[Zhang, Xian J.] USN, Carderock Div, Ctr Surface Warfare, West Bethesda, MD USA.
RP Isheim, D (reprint author), Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
EM isheim@northwestern.edu
RI Seidman, David/B-6697-2009
FU Office for Naval Research (ONR) [N00014-09-1-0361]; NSF-MRI
[DMR-0420532]; ONR-DURIP [N00014-0400798, N00014-0610539,
N00014-0910781]; National Science Foundation's MRSEC program
[DMR-1121262]; E.I. DuPont de Nemours Co.; Dow Chemical Company;
Northwestern University; U.S. DOE [DE-AC02-06CH11357]
FX This research was sponsored by the Office for Naval Research (ONR) under
grant N00014-09-1-0361, thanks to Dr. W. W. Mullins, grant officer. The
atom-probe tomographic measurements were performed at the Northwestern
University Center for Atom-Probe Tomography (NUCAPT). The
local-electrode atom-probe tomograph was purchased and upgraded with
funding from NSF-MRI (DMR-0420532) and ONR-DURIP (N00014-0400798,
N00014-0610539, N00014-0910781) grants. The current study made use of
the Shared Facilities at the Materials Research Center of Northwestern
University, supported by the National Science Foundation's MRSEC program
(DMR-1121262). Additional instrumentation at NUCAPT was supported by the
Initiative for Sustainability and Energy at Northwestern (ISEN). The
authors thank Dr. Denis Keane for his help with the synchrotron
experiments at the DuPont-Northwestern-Dow Collaborative Access Team
(DND-CAT) of the Advanced Photon Source (APS). DND-CAT is supported by
E.I. DuPont de Nemours & Co., The Dow Chemical Company, and Northwestern
University. Use of the APS, an Office of Science User Facility operated
for the U.S. Department of Energy (DOE) Office of Science by Argonne
National Laboratory, was supported by the U.S. DOE, under Contract No.
DE-AC02-06CH11357.
NR 65
TC 5
Z9 5
U1 3
U2 38
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 JUL
PY 2013
VL 44A
IS 7
BP 3046
EP 3059
DI 10.1007/s11661-013-1670-6
PG 14
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 150VZ
UT WOS:000319420800015
ER
PT J
AU Cox, ME
Dunand, DC
AF Cox, Marie E.
Dunand, David C.
TI Acoustic Emission Analysis of Damage during Compressive Deformation of
Amorphous Zr-Based Foams with Aligned, Elongated Pores
SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND
MATERIALS SCIENCE
LA English
DT Article; Proceedings Paper
CT Symposium on Phase Transformations and Deformation in Magnesium Alloys
CY JUL, 2012
CL Orlando, FL
ID BULK METALLIC-GLASS; MATRIX COMPOSITES; MECHANICAL-PROPERTIES; TUNGSTEN
FIBER; ALLOYS; CONSOLIDATION; BEHAVIOR
AB Acoustic emission methods are used to investigate the evolution of internal microfractural damage during uniaxial compression of amorphous Zr-based foams with aligned, elongated pores. The foams are fabricated by means of densifying a blend of crystalline W powders and amorphous Zr-based powders with two oxygen contents (0.078 and 0.144 wt pct) by warm equal channel angular extrusion, followed by dissolution of the elongated W phase from the fully densified amorphous matrix. For the high-oxygen foams, prior powder boundaries in the amorphous struts promote damage that accumulates during compression, resulting in energy-absorbing properties comparable with the low-oxygen foams without stress-concentrating powder boundaries. The influence of pore orientation on the evolution of microfracture damage and the ability of the foams to accumulate damage without catastrophic failure is also investigated: pores oriented from 24 to 68 deg to the loading direction promote wall bending, resulting in foams with more diffuse damage and better energy-absorbing properties.
C1 [Cox, Marie E.] USN, Res Lab, Washington, DC 20001 USA.
[Dunand, David C.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
RP Cox, ME (reprint author), USN, Res Lab, Washington, DC 20001 USA.
EM dunand@northwestern.edu
RI Dunand, David/B-7515-2009;
OI Dunand, David/0000-0001-5476-7379
FU National Science Foundation; Army Research Laboratory (ARL)
FX MEC was supported by a National Science Foundation Graduate Research
Fellowship. This research was partially funded by the Army Research
Laboratory (ARL); the authors thank Dr. Suveen Mathaudhu (ARL, currently
Army Research Office) for providing the L-26 samples and for helping to
develop this project. The authors also thank Dr. Laszlo Kecskes (ARL)
for many useful discussions, Mr. Micah Gallagher (ARL) for assistance in
machining samples, Mr. Larry Jones (Ames National Laboratory, Department
of Energy) for BMG powder and canning preparation; they acknowledge
useful discussions with, and use of the ECAE equipment belonging to,
Prof. K. Ted Hartwig (Texas A&M University, TAMU) as well as the
experimental assistance of Mr. Robert Barber and Mr. David Foley (TAMU)
in operating the equipment. The authors finally thank the Infrastructure
Technology Institute at Northwestern University for providing access to
their acoustic equipment.
NR 27
TC 2
Z9 2
U1 3
U2 31
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 JUL
PY 2013
VL 44A
IS 7
BP 3114
EP 3122
DI 10.1007/s11661-013-1691-1
PG 9
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 150VZ
UT WOS:000319420800021
ER
PT J
AU Chang, YK
Kim, H
Kang, JS
AF Chang, Young K.
Kim, Hongrae
Kang, Jin S.
TI Development of reliability-corrected cost model for Small Earth
Observation satellites
SO ACTA ASTRONAUTICA
LA English
DT Article
DE Cost Estimation; KEOSCM; Earth Observation satellite; System Complexity
Index (SCI); Reliability-corrected CER
AB In this study, a novel reliability-corrected cost model for estimating the development cost of highly agile small EO (Earth Observation) satellites is presented. In order to develop the cost model of highly agile small EO satellites, a database has been constructed consisting of 49 satellites carrying electro-optical payloads and having a launch mass between 100 kg and 1,000 kg that have either been developed or being developed within a time frame fr'om 1991 to 2011. The cost model of top-down type was developed by analyzing the database statistically. The reliability-corrected CER (Cost Estimating Relationships) developed in this study implement multiple parameters-based complexity indexes. In addition, the Cost Correction Factor (CCF) and Low Cost Small Satellite (LCSS) adjustment factor were newly introduced as additional parameters for cost estimation. The reliability-corrected CERs for 26 EO satellites were used for verification of the cost model developed in this study. It was observed that there are approximately 7% of absolute average errors in the reliabilitycorrected CER. It is concluded that this cost model can provide cost estimates with a higher accuracy, as compared to conventional cost models such as USCM and SSCM. Finally, this paper also describes the results of cost estimation obtained by applying the developed cost model to highly agile small electro-optical satellites having specific performance requirements. (C) 2012 IAA. Published by Elsevier Ltd. All rights reserved.
C1 [Chang, Young K.; Kim, Hongrae] Korea Aerosp Univ, GSRC, Goyang 412791, South Korea.
[Kang, Jin S.] USN Acad, Annapolis, MD 21402 USA.
RP Chang, YK (reprint author), Korea Aerosp Univ, GSRC, Goyang 412791, South Korea.
EM ykchang@kau.ac.kr
FU Global Surveillance Research Center (GSRC); Defense Acquisition Program
Administration (DAPA); Agency for Defense Development (ADD)
FX This work was supported by Global Surveillance Research Center (GSRC)
program funded by the Defense Acquisition Program Administration (DAPA)
and Agency for Defense Development (ADD).
NR 15
TC 0
Z9 0
U1 1
U2 7
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0094-5765
J9 ACTA ASTRONAUT
JI Acta Astronaut.
PD JUL-AUG
PY 2013
VL 88
BP 163
EP 175
DI 10.1016/j.actaastro.2012.10.004
PG 13
WC Engineering, Aerospace
SC Engineering
GA 151WG
UT WOS:000319490500015
ER
PT J
AU Shi, Y
Hou, YT
Liu, J
Kompella, S
AF Shi, Yi
Hou, Y. Thomas
Liu, Jia
Kompella, Sastry
TI Bridging the Gap between Protocol and Physical Models for Wireless
Networks
SO IEEE TRANSACTIONS ON MOBILE COMPUTING
LA English
DT Article
DE Interference modeling; protocol model; physical model; multihop wireless
network; cross-layer optimization
ID DEFINED RADIO NETWORKS; POWER-CONTROL; BROADCAST CHANNELS; MODULATION
AB This paper tries to reconcile the tension between the physical model and the protocol model that have been used to characterize interference relationship in a multihop wireless network. The physical model (a.k.a. signal-to-interference-and-noise ratio model) is widely considered as a reference model for physical layer behavior but its application in multihop wireless networks is limited by its complexity. On the other hand, the protocol model (a.k.a. disk graph model) is simple but there have been doubts on its validity. This paper explores the following fundamental question: How to correctly use the protocol interference model? We show that, in general, solutions obtained under the protocol model may be infeasible and, thus, results based on blind use of protocol model can be misleading. We propose a new concept called "reality check" and present a method of using a protocol model with reality check for wireless networks. Subsequently, we show that by appropriate setting of the interference range in the protocol model, it is possible to narrow the solution gap between the two models. Our simulation results confirm that this gap is indeed small (or even negligible). Thus, our methodology of joint reality check and interference range setting retains the protocol model as a viable approach to analyze multihop wireless networks.
C1 [Shi, Yi] Intelligent Automat Inc, Gaithersburg, MD 20877 USA.
[Hou, Y. Thomas] Virginia Polytech Inst & State Univ, Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
[Liu, Jia] Ohio State Univ, Dept Elect & Comp Engn, Columbus, OH 43210 USA.
[Kompella, Sastry] USN, Div Informat Technol, Res Lab, Washington, DC 20375 USA.
RP Shi, Y (reprint author), Intelligent Automat Inc, 17628 Sequoia Dr,Apt 202, Gaithersburg, MD 20877 USA.
EM yshi@vt.edu; thou@vt.edu; liu@ece.osu.edu; sastry.kompella@nrl.navy.mil
FU US National Science Foundation [CNS-1064953, ECCS-0925719]; ONR
FX The work of Y. Thomas Hou was supported in part by the US National
Science Foundation under grants CNS-1064953 and ECCS-0925719. The work
of Sastry Kompella was supported in part by the ONR. This work was
completed while Yi Shi and Jia Liu were with Virginia Tech, Blacksburg,
Virginia. For correspondence, please contact Y. T. Hou (thou@vt.edu).
NR 27
TC 17
Z9 17
U1 4
U2 11
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1536-1233
EI 1558-0660
J9 IEEE T MOBILE COMPUT
JI IEEE. Trans. Mob. Comput.
PD JUL
PY 2013
VL 12
IS 7
BP 1404
EP 1416
DI 10.1109/TMC.2012.118
PG 13
WC Computer Science, Information Systems; Telecommunications
SC Computer Science; Telecommunications
GA 150SP
UT WOS:000319411600012
ER
PT J
AU Aktas, DF
Lee, JS
Little, BJ
Duncan, KE
Perez-Ibarra, BM
Suflita, JM
AF Aktas, Deniz F.
Lee, Jason S.
Little, Brenda J.
Duncan, Kathleen E.
Perez-Ibarra, B. Monica
Suflita, Joseph M.
TI Effects of oxygen on biodegradation of fuels in a corroding environment
SO INTERNATIONAL BIODETERIORATION & BIODEGRADATION
LA English
DT Article; Proceedings Paper
CT 3rd International Symposium on Applied Microbiology and Molecular
Biology in Oil Systems (ISMOS-3)
CY JUN 13-15, 2011
CL Alberta, CANADA
DE Biodegradation; Oxygen; Alternative fuels; Microbiologically influenced
corrosion
ID POLYMERASE-CHAIN-REACTION; NATURAL-GAS; WASTE-WATER; MILD-STEEL;
CORROSION; GENES; OIL; COMMUNITIES; BACTERIA; SEQUENCES
AB The relationship between corrosion and biodegradation of bio- and petroleum-based fuels was evaluated using aerobic seawater, fuel and unprotected carbon steel coupons under stagnant conditions to simulate a potential fuel storage condition. Aerobic respiration and corrosion reactions consumed oxygen in the incubations in a short time. The transient oxygen influenced the microbial biodegradation of all fuels and resulted in a suite of characteristic metabolites, including catechols. The corrosion was believed to be the result of biogenic sulfide production and in all cases, the black corrosion products contained chlorine and sulfur (presumed chloride and sulfide) in addition to iron. There were few differences in electrochemically measured corrosion rates in incubations amended with any of the fuels or their blends. Clone library analysis demonstrated higher proportions of Firmicutes, Deltaproteobacteria (primarily sulfate-reducing bacteria), Chloroflexi, and Lentisphaerae in incubations exposed to fuels than the original seawater. Relative proportions of sequences affiliated with these bacterial groups varied with fuel. Methanogen sequences similar to those of Methanolobus were also found in multiple incubations. Despite the dominance of characteristically anaerobic taxa, sequences coding for an alkane monooxygenase from marine hydrocarbon-degrading genera and aerobically produced intermediates were observed, indicative that organisms with this metabolic potential were active at some point during the incubation. Aerobic oxidation of fuel components resulted in the formation of a series of intermediates that could be used by anaerobic seawater microbial communities to support metabolism, sulfide production, and carbon steel corrosion. (C) 2012 Elsevier Ltd. All rights reserved.
C1 [Aktas, Deniz F.; Duncan, Kathleen E.; Perez-Ibarra, B. Monica; Suflita, Joseph M.] Univ Oklahoma, Inst Energy & Environm, Dept Microbiol & Plant Biol, Norman, OK 73019 USA.
[Lee, Jason S.; Little, Brenda J.] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Suflita, JM (reprint author), Univ Oklahoma, Inst Energy & Environm, Dept Microbiol & Plant Biol, 770 Van Vleet Oval, Norman, OK 73019 USA.
EM jsuflita@ou.edu
FU Sharon Beermann-Curtin at the Office of Naval Research (ONR) [332,
N0001411WX21441]; Office of Naval Research [N000141010946]
FX NRL personnel were funded by Sharon Beermann-Curtin at the Office of
Naval Research (ONR Code 332) under award N0001411WX21441. NRL
publication JA/7330-11-1006. The study was also supported by grant
N000141010946 from the Office of Naval Research.
NR 42
TC 10
Z9 11
U1 1
U2 31
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0964-8305
EI 1879-0208
J9 INT BIODETER BIODEGR
JI Int. Biodeterior. Biodegrad.
PD JUL
PY 2013
VL 81
SI SI
BP 114
EP 126
DI 10.1016/j.ibiod.2012.05.006
PG 13
WC Biotechnology & Applied Microbiology; Environmental Sciences
SC Biotechnology & Applied Microbiology; Environmental Sciences & Ecology
GA 146JO
UT WOS:000319087600014
ER
PT J
AU Fabrikant, A
Jaggard, AD
Schapira, M
AF Fabrikant, Alex
Jaggard, Aaron D.
Schapira, Michael
TI On the Structure of Weakly Acyclic Games
SO THEORY OF COMPUTING SYSTEMS
LA English
DT Article
DE Weak acyclicity; Subgame stability
ID DYNAMICS
AB The class of weakly acyclic games, which includes potential games and dominance-solvable games, captures many practical application domains. In a weakly acyclic game, from any starting state, there is a sequence of better-response moves that leads to a pure Nash equilibrium; informally, these are games in which natural distributed dynamics, such as better-response dynamics, cannot enter inescapable oscillations. We establish a novel link between such games and the existence of pure Nash equilibria in subgames. Specifically, we show that the existence of a unique pure Nash equilibrium in every subgame implies the weak acyclicity of a game. In contrast, the possible existence of multiple pure Nash equilibria in every subgame is insufficient for weak acyclicity in general; here, we also systematically identify the special cases (in terms of the number of players and strategies) for which this is sufficient to guarantee weak acyclicity.
C1 [Fabrikant, Alex] Google Res, Mountain View, CA USA.
[Jaggard, Aaron D.] Rutgers State Univ, DIMACS Ctr, Piscataway, NJ USA.
[Jaggard, Aaron D.] Colgate Univ, Dept Comp Sci, Hamilton, NY 13346 USA.
[Schapira, Michael] Hebrew Univ Jerusalem, Sch Comp Sci & Engn, Jerusalem, Israel.
RP Jaggard, AD (reprint author), USN, Res Lab, Formal Methods Sect Code 5543, Washington, DC 20375 USA.
EM alexf@cal.berkeley.edu; adj@dimacs.rutgers.edu; schapiram@huji.ac.il
OI Jaggard, Aaron D./0000-0003-0628-4553
FU Cisco URP grant; Princeton University; NSF [0751674, 0753492, 1101690];
Israel Science Foundation (ISF); Marie Curie Career Integration Grant
(CIG)
FX The first author was supported by a Cisco URP grant and a Princeton
University postdoctoral fellowship. The second author was partially
supported by NSF grants 0751674, 0753492, and 1101690. The third author
was supported by a grant from the Israel Science Foundation (ISF) and by
the Marie Curie Career Integration Grant (CIG). This is a revised and
expanded version of a paper that appeared in the Proceedings of SAGT
2010.
NR 18
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U1 0
U2 2
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1432-4350
J9 THEOR COMPUT SYST
JI Theor. Comput. Syst.
PD JUL
PY 2013
VL 53
IS 1
BP 107
EP 122
DI 10.1007/s00224-013-9457-0
PG 16
WC Computer Science, Theory & Methods; Mathematics
SC Computer Science; Mathematics
GA 154WK
UT WOS:000319706700007
ER
PT J
AU Pique, A
Kim, H
Auyeung, RCY
AF Pique, Alberto
Kim, Heungsoo
Auyeung, Raymond C. Y.
TI Laser Forward Transfer of Functional Materials for Digital Fabrication
of Microelectronics
SO JOURNAL OF IMAGING SCIENCE AND TECHNOLOGY
LA English
DT Article
ID DIRECT-WRITE; FILMS
AB Laser-induced forward transfer, or LIFT, is a directwrite technique that enables nozzle-free, non-contact printing of 3-dimensional pixels or voxels of suspensions of functional materials across a wide range of viscosities with micrometer resolution. Printing of low-viscosity (<0.1 Pa s) nanoparticle (NP) inks by LIFT is in many ways similar to inkjet printing, where the cured voxel size and shape are determined by its interaction with the substrate. LIFT is also compatible with NP pastes of very high viscosity (>100 Pa s) and high solids content (>80 wt%), resulting in printed voxels that precisely replicate the shape and size of the laser transferring pulse. This LIFT regime, known as laser decal transfer or LDT, allows the congruent printing of highly loaded colloids and suspensions, unlike any existing direct-write process. This work compares LIFT of low-viscosity NP inks with LDT of high-viscosity NP pastes in terms of the voxels of silver NP suspensions printed by each technique. It also presents advances in a new digital fabrication technique using a spatial light modulator to change the size and shape of the LDT laser pulse, resulting in the dynamic reconfiguration of individual voxels. This enables a new level of parallelization unlike current serial direct-write processes, since each voxel can be varied according to the pattern design. An overview of the opportunities and challenges associated with LIFT of NP suspensions forms part of the conclusions. (C) 2013 Society for Imaging Science and Technology.
C1 [Pique, Alberto; Kim, Heungsoo; Auyeung, Raymond C. Y.] US Navy, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
RP Pique, A (reprint author), US Navy, Res Lab, Div Mat Sci & Technol, Code 6364, Washington, DC 20375 USA.
EM pique@nrl.navy.mil
FU Office of Naval Research (ONR) through the Naval Research Laboratory
Basic Research Program
FX This work was funded by the Office of Naval Research (ONR) through the
Naval Research Laboratory Basic Research Program.
NR 26
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U1 3
U2 16
PU I S & T - SOC IMAGING SCIENCE TECHNOLOGY
PI SPRINGFIELD
PA 7003 KILWORTH LANE, SPRINGFIELD, VA 22151 USA
SN 1062-3701
EI 1943-3522
J9 J IMAGING SCI TECHN
JI J. Imaging Sci. Technol.
PD JUL
PY 2013
VL 57
IS 4
AR 040404
DI 10.2352/J.ImagingSci.Technol.2013.57.4.040404
PG 8
WC Imaging Science & Photographic Technology
SC Imaging Science & Photographic Technology
GA AS2XF
UT WOS:000344139100006
ER
PT J
AU Norris, JN
Carr, W
Herzig, T
Labrie, W
Sams, R
AF Norris, Jacob N.
Carr, Walter
Herzig, Thomas
Labrie, Walter
Sams, Richard
TI ANAM4 TBI Reaction Time-Based Tests Have Prognostic Utility for Acute
Concussion
SO MILITARY MEDICINE
LA English
DT Article
ID NEUROPSYCHOLOGICAL ASSESSMENT METRICS; SPORT-RELATED CONCUSSION;
HEAD-INJURY; FOOTBALL PLAYERS; HIGH-SCHOOL; RETURN; PERFORMANCE;
RECOVERY
AB The Concussion Restoration Care Center has used the Automated Neuropsychological Assessment Metrics version 4 Traumatic Brain Injury (ANAM4 TBI) battery in clinical assessment of concussion. The study's aim is to evaluate the prognostic utility of the ANAM4 TBI. In 165 concussed active duty personnel (all ultimately returned to duty) seen and tested on the ANAM4 TBI on days 3 and 5 (median times) from their injury, Spearman's rho statistics showed that all performance subtests (at day 5) were associated with fewer days return-to-duty (RTD) time, whereas concussion history or age did not. Kruskal Wallis statistics showed that ANAM4 TBI, loss of consciousness, and post-traumatic amnesia were associated with increased RTD time; ANAM4 TBI reaction time-based subtests, collectively, showed the largest effect sizes. A survival analysis using a Kaplan-Meier plot showed that the lowest 25% on the reaction time-based subtests had a median RTD time of 19 days, whereas those in the upper 25% had a median RTD time of approximately 7 days. Results indicate that until validated neurocognitive testing is introduced, the ANAM4 TBI battery, especially reaction time-based tests, has prognostic utility.
C1 [Norris, Jacob N.; Carr, Walter] Naval Med Res Ctr, Neurotrauma Dept, Silver Spring, MD 20904 USA.
[Herzig, Thomas] Naval Hlth Res Ctr, Warfighter Performance Dept, San Diego, CA 92106 USA.
[Labrie, Walter] Naval Med Ctr Portsmouth, Dept Mental Hlth, Portsmouth, VA 23708 USA.
[Sams, Richard] Kings Bay Branch Hlth Clin, Kings Bay, GA USA.
RP Norris, JN (reprint author), Naval Med Res Ctr, Neurotrauma Dept, 503 Robert Grant Ave, Silver Spring, MD 20904 USA.
FU Navy Bureau of Medicine and Surgery, under Work Unit [N24LB]
FX The authors thank CAPT Jack Tsao, CAPT Tara Zieber, CDR Peter Lunblad,
and CDR Earl Frantz for their support and feedback on drafts of the
manuscript. This report was supported by Navy Bureau of Medicine and
Surgery, under Work Unit No. N24LB.
NR 34
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U1 0
U2 3
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
EI 1930-613X
J9 MIL MED
JI Milit. Med.
PD JUL
PY 2013
VL 178
IS 7
BP 767
EP 774
DI 10.7205/MILMED-D-12-00493
PG 8
WC Medicine, General & Internal
SC General & Internal Medicine
GA AN7UA
UT WOS:000340805300012
PM 23820351
ER
PT J
AU LeardMann, CA
Pietrucha, A
Magruder, KM
Smith, B
Murdoch, M
Jacobson, IG
Ryan, MAK
Gackstetter, G
Smith, TC
AF LeardMann, Cynthia A.
Pietrucha, Amanda
Magruder, Kathryn M.
Smith, Besa
Murdoch, Maureen
Jacobson, Isabel G.
Ryan, Margaret A. K.
Gackstetter, Gary
Smith, Tyler C.
CA Millennium Cohort Study Team
TI Combat Deployment Is Associated with Sexual Harassment or Sexual Assault
in a Large, Female Military Cohort
SO WOMENS HEALTH ISSUES
LA English
DT Article
ID HEALTH-CARE UTILIZATION; WOMEN VETERANS; HEART-DISEASE; PREVALENCE;
MULTIMORBIDITY; AFGHANISTAN; SLEEP; IRAQ
AB Background: Previous studies have examined the prevalence, risk factors, and health correlates of sexual stressors in the military, but have been limited to specific subpopulations. Furthermore, little is known about sexual stressors' occurrence and their correlates in relation to female troops deployed to the current operations in Iraq and Afghanistan.
Methods: Using longitudinal data from Millennium Cohort participants, the associations of recent deployment as well as other individual and environmental factors with sexual harassment and sexual assault were assessed among U. S. female military personnel. Multivariable analyses were used to investigate the associations.
Findings: Of 13,262 eligible participants, 1,362 (10.3%) reported at least one sexual stressor at follow-up. Women who deployed and reported combat experiences were significantly more likely to report sexual harassment (odds ratio [OR], 2.20; 95% confidence interval [CI], 1.84-2.64) or both sexual harassment and sexual assault (OR, 2.47; 95% CI, 1.61-3.78) compared with nondeployers. In addition, significant risk factors for sexual stressors included younger age, recent separation or divorce, service in the Marine Corps, positive screen for a baseline mental health condition, moderate/severe life stress, and prior sexual stressor experiences.
Conclusions: Although deployment itself was not associated with sexual stressors, women who both deployed and reported combat were at a significantly increased odds for sexual stressors than other female service members who did not deploy. Understanding the factors associated with sexual stressors can inform future policy and prevention efforts to eliminate sexual stressors. Copyright (C) 2013 by the Jacobs Institute of Women's Health. Published by Elsevier Inc.
C1 [LeardMann, Cynthia A.; Pietrucha, Amanda; Smith, Besa; Jacobson, Isabel G.; Smith, Tyler C.] Naval Hlth Res Ctr, Dept Deployment Hlth Res, San Diego, CA 92106 USA.
[Magruder, Kathryn M.] VA Med Ctr, Charleston, SC USA.
[Magruder, Kathryn M.] Med Univ S Carolina, Charleston, SC 29425 USA.
[Murdoch, Maureen] Minneapolis VA Med Ctr, Ctr Chron Dis Outcomes Res, Minneapolis, MN USA.
[Murdoch, Maureen] Univ Minnesota, Sch Med, Minneapolis, MN 55455 USA.
[Ryan, Margaret A. K.] Naval Hosp Camp Pendleton, Camp Pendleton, CA USA.
[Gackstetter, Gary] Analyt Serv Inc ANSER, Arlington, VA USA.
RP LeardMann, CA (reprint author), Naval Hlth Res Ctr, Dept Deployment Hlth Res, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM cynthia.leardmann@med.navy.mil
NR 30
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U1 0
U2 7
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1049-3867
EI 1878-4321
J9 WOMEN HEALTH ISS
JI Womens Health Iss.
PD JUL-AUG
PY 2013
VL 23
IS 4
BP E215
EP E232
DI 10.1016/j.whi.2013.05.002
PG 17
WC Public, Environmental & Occupational Health; Women's Studies
SC Public, Environmental & Occupational Health; Women's Studies
GA AO1WW
UT WOS:000341107200003
PM 23816151
ER
PT J
AU Yu, L
Schwier, JM
Craven, RM
Brooks, RR
Griffin, C
AF Yu, Lu
Schwier, Jason M.
Craven, Ryan M.
Brooks, Richard R.
Griffin, Christopher
TI Inferring Statistically Significant Hidden Markov Models
SO IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
LA English
DT Article
DE Hidden Markov models; model confidence; statistical hypothesis testing;
z-test
ID KNOWLEDGE; ANONYMITY; SET
AB Hidden Markov models (HMMs) are used to analyze real-world problems. We consider an approach that constructs minimum entropy HMMs directly from a sequence of observations. If an insufficient amount of observation data is used to generate the HMM, the model will not represent the underlying process. Current methods assume that observations completely represent the underlying process. It is often the case that the training data size is not large enough to adequately capture all statistical dependencies in the system. It is, therefore, important to know the statistical significance level for that the constructed model representing the underlying process, not only the training set. In this paper, we present a method to determine if the observation data and constructed model fully express the underlying process with a given level of statistical significance. We use the statistics of the process to calculate an upper bound on the number of samples required to guarantee that the model has a given level significance. We provide theoretical and experimental results that confirm the utility of this approach. The experiment is conducted on a real private Tor network.
C1 [Yu, Lu; Schwier, Jason M.; Brooks, Richard R.] Clemson Univ, Holcombe Dept Elect & Comp Engn, Clemson, SC 29634 USA.
[Craven, Ryan M.] USN, Postgrad Sch, Pebble Beach, CA 93953 USA.
[Griffin, Christopher] Penn State Univ, Appl Res Lab, Commun Informat & Nav Off, University Pk, PA 16802 USA.
RP Yu, L (reprint author), Clemson Univ, Holcombe Dept Elect & Comp Engn, 313-C Riggs Hall, Clemson, SC 29634 USA.
EM lyu@clemson.edu; jschwie@clemson.edu; rcraven@ieee.org; rrb@acm.org;
griffin@math.psu.edu
FU US Office of Naval Research [N00014-06-C-0022]; Air Force Research
Laboratory [AFD-080228-008]; US Department of Energy [DE-AC05-00OR22725]
FX This material is based upon work supported by, or in part by, the US
Office of Naval Research Code 311 contract/grant number
N00014-06-C-0022, and on research sponsored by the Air Force Research
Laboratory, under agreement number AFD-080228-008. The US Government is
authorized to reproduce and distribute reprints for Governmental
purposes notwithstanding any copyright notation thereon. The authors
gratefully acknowledge these supports and take responsibility for the
contents of this paper. Dr. Griffins contribution was performed as a
Eugene P. Wigner Fellow and staff member at the Oak Ridge National
Laboratory, managed by UT-Battelle, LLC, for the US Department of Energy
under Contract DE-AC05-00OR22725. The views and conclusions contained
herein are those of the authors and should not be interpreted as
necessarily representing the official policies or endorsements, either
expressed or implied, of the Air Force Research Laboratory or the US
Government. The authors would like to thank the anonymous reviewers for
their inputs, which greatly improved the contents of this paper.
NR 48
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U1 0
U2 6
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1041-4347
J9 IEEE T KNOWL DATA EN
JI IEEE Trans. Knowl. Data Eng.
PD JUL
PY 2013
VL 25
IS 7
BP 1548
EP 1558
DI 10.1109/TKDE.2012.93
PG 11
WC Computer Science, Artificial Intelligence; Computer Science, Information
Systems; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA 151LK
UT WOS:000319461800009
ER
PT J
AU Godfrey, DA
Kaltenbach, JA
Chen, KJ
Ilyas, O
AF Godfrey, Donald A.
Kaltenbach, James A.
Chen, Kejian
Ilyas, Omer
TI Choline acetyltransferase activity in the hamster central auditory
system and long-term effects of intense tone exposure
SO JOURNAL OF NEUROSCIENCE RESEARCH
LA English
DT Article
DE acetylcholine; cochlear nucleus; granular regions; olivocochlear bundle;
tinnitus
ID DORSAL COCHLEAR NUCLEUS; AMINO-ACID-CONCENTRATIONS; SUPERIOR OLIVARY
COMPLEX; INDUCED HEARING-LOSS; ACOUSTIC TRAUMA; INFERIOR COLLICULUS;
BRAIN-STEM; SOUND EXPOSURE; GLUTAMATE-DECARBOXYLASE; RAT
AB Acoustic trauma often leads to loss of hearing of environmental sounds, tinnitus, in which a monotonous sound not actually present is heard, and/or hyperacusis, in which there is an abnormal sensitivity to sound. Research on hamsters has documented physiological effects of exposure to intense tones, including increased spontaneous neural activity in the dorsal cochlear nucleus. Such physiological changes should be accompanied by chemical changes, and those chemical changes associated with chronic effects should be present at long times after the intense sound exposure. Using a microdissection mapping procedure combined with a radiometric microassay, we have measured activities of choline acetyltransferase (ChAT), the enzyme responsible for synthesis of the neurotransmitter acetylcholine, in the cochlear nucleus, superior olive, inferior colliculus, and auditory cortex of hamsters 5 months after exposure to an intense tone compared with control hamsters of the same age. In control hamsters, ChAT activities in auditory regions were never more than one-tenth of the ChAT activity in the facial nerve root, a bundle of myelinated cholinergic axons, in agreement with a modulatory rather than a dominant role of acetylcholine in hearing. Within auditory regions, relatively higher activities were found in granular regions of the cochlear nucleus, dorsal parts of the superior olive, and auditory cortex. In intense-tone-exposed hamsters, ChAT activities were significantly increased in the anteroventral cochlear nucleus granular region and the lateral superior olivary nucleus. This is consistent with some chronic upregulation of the cholinergic olivocochlear system influence on the cochlear nucleus after acoustic trauma. (c) 2013 Wiley Periodicals, Inc.
C1 [Godfrey, Donald A.; Ilyas, Omer] Univ Toledo, Coll Med, Dept Neurol, Toledo, OH 43614 USA.
[Godfrey, Donald A.; Ilyas, Omer] Univ Toledo, Coll Med, Dept Surg, Div Otolaryngol & Dent, Toledo, OH 43614 USA.
[Kaltenbach, James A.] Cleveland Clin, Lerner Res Inst, Dept Neurosci, Cleveland, OH 44106 USA.
[Kaltenbach, James A.] Cleveland Clin, Head & Neck Inst, Cleveland, OH 44106 USA.
[Chen, Kejian] USN, San Diego Med Ctr, Dept Clin Invest, San Diego, CA 92152 USA.
RP Godfrey, DA (reprint author), Univ Toledo, Coll Med, Dept Neurol, Mail Stop 1195,3000 Arlington Ave, Toledo, OH 43614 USA.
EM donald.godfrey@utoledo.edu
FU National Institutes of Health [1R01DC009097]; University of Toledo
Foundation
FX Contract grant sponsor: National Institutes of Health; Contract grant
number: 1R01DC009097; Contract grant sponsor: University of Toledo
Foundation.
NR 76
TC 6
Z9 8
U1 0
U2 7
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0360-4012
J9 J NEUROSCI RES
JI J. Neurosci. Res.
PD JUL
PY 2013
VL 91
IS 7
BP 987
EP 996
DI 10.1002/jnr.23227
PG 10
WC Neurosciences
SC Neurosciences & Neurology
GA 147FT
UT WOS:000319152200013
PM 23605746
ER
PT J
AU Reames, DV
Ng, CK
Tylka, AJ
AF Reames, Donald V.
Ng, Chee K.
Tylka, Allan J.
TI Spatial Distribution of Solar Energetic Particles in the Inner
Heliosphere
SO SOLAR PHYSICS
LA English
DT Article
DE Solar energetic particles; Shock waves; Coronal mass ejections
ID CORONAL MASS EJECTIONS; GROUND-LEVEL EVENTS; INTERPLANETARY SHOCKS; PEAK
INTENSITIES; RELEASE TIMES; HIGH-ENERGIES; 1 AU; ACCELERATION; PROTONS;
FLARES
AB We study the spatial distribution of solar energetic particles (SEPs) throughout the inner heliosphere during six large SEP events from the period 1977 through 1979, as deduced from observations on the Helios 1 and 2, IMP 7 and 8, ISEE 3, and Voyager 1 and 2 spacecraft. Evidence of intensity maxima associated with the expanding shock wave is commonly seen along its central and western flanks, although the region of peak acceleration or "nose" of the shock is sometimes highly localized in longitude. In one event (1 January 1978) a sharp peak in 20 -aEuro parts per thousand 30 MeV proton intensities is seen more strongly by Voyager at similar to aEuro parts per thousand 2 AU than it is by spacecraft at nearby longitudes at similar to aEuro parts per thousand 1 AU. Large spatial regions, or "reservoirs," often exist behind the shocks with spatially uniform SEP intensities and invariant spectra that decrease adiabatically with time as their containment volume expands. Reservoirs are seen to sweep past 0.3 AU and can extend out many AU. Boundaries of the reservoirs can vary with time and with particle velocity, rather than rigidity. In one case, a second shock wave from the Sun reaccelerates protons that retain the same hard spectrum as protons in the reservoir from the preceding SEP event. Thus reservoirs can provide not only seed particles but also a "seed spectrum" with a spectral shape that is unchanged by a weaker second shock.
C1 [Reames, Donald V.] Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA.
[Ng, Chee K.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[Ng, Chee K.; Tylka, Allan J.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
RP Reames, DV (reprint author), Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA.
EM dvreames@umd.edu; cng2@gmu.edu; allan.tylka@nrl.navy.mil
RI Tylka, Allan/G-9592-2014
FU NASA [NNX08AQ02G, NNX09AU98G]; Office of Naval Research; NASA DPR
[NNG06EC55I]
FX Work by DVR was funded in part by NASA grant NNX08AQ02G, CKN was funded
by NASA grant NNX09AU98G, and AJT was supported by the Office of Naval
Research and NASA DPR NNG06EC55I.
NR 43
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U1 0
U2 6
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0038-0938
J9 SOL PHYS
JI Sol. Phys.
PD JUL
PY 2013
VL 285
IS 1-2
BP 233
EP 250
DI 10.1007/s11207-012-0038-1
PG 18
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 138OS
UT WOS:000318518600014
ER
PT J
AU Tylka, AJ
Malandraki, OE
Dorrian, G
Ko, YK
Marsden, RG
Ng, CK
Tranquille, C
AF Tylka, Allan J.
Malandraki, Olga E.
Dorrian, Gareth
Ko, Yuan-Kuen
Marsden, Richard G.
Ng, Chee K.
Tranquille, Cecil
TI Initial Fe/O Enhancements in Large, Gradual, Solar Energetic Particle
Events: Observations from Wind and Ulysses
SO SOLAR PHYSICS
LA English
DT Article
DE Solar Energetic Particles (SEPs); Solar flares; Coronal mass ejections;
Ulysses; Wind
ID IONIC CHARGE; ABUNDANCE ENHANCEMENTS; MAGNETIC RECONNECTION; HE-3-RICH
EVENTS; HIGH-ENERGIES; ACCELERATION; FLARES; WAVES; HE-3; PROPAGATION
AB Shocks driven by fast coronal mass ejections (CMEs) are the dominant particle accelerators in large, "gradual" solar energetic particle (SEP) events. In these events, the event-integrated value of the iron-to-oxygen ratio (Fe/O) is typically similar to aEuro parts per thousand 0.1, at least at energies of a few MeV/nucleon. However, at the start of some gradual events, when intensities are low and growing, initially Fe/O is similar to aEuro parts per thousand 1. This value is also characteristic of small, "impulsive" SEP events, in which particle acceleration is due to magnetic reconnection. These observations suggested that SEPs in gradual events also include a direct contribution from the flare that accompanied the CME launch. If correct, this interpretation is of critical importance: it indicates a clear path to interplanetary space for particles from the reconnection region beneath the CME. A key issue for the flare origin is "magnetic connectedness", i.e., proximity of the flare site to the solar footpoint of the observer's magnetic field line.
We present two large gradual events observed in 2001 by Wind at L1 and by Ulysses, when it was located at > 60(a similar to) heliolatitude and beyond 1.6 AU. In these events, transient Fe/O enhancements at 5 -aEuro parts per thousand 10 MeV/nucleon were seen at both spacecraft, even though one or both is not "well-connected" to the flare. These observations demonstrate that an initial Fe/O enhancement cannot be cited as evidence for a direct flare component. Instead, initial Fe/O enhancements are better understood as a transport effect, driven by the different mass-to-charge ratios of Fe and O.
We further demonstrate that the time-constant of the roughly exponential decay of the Fe/O ratio scales as R (2), where R is the observer's radial distance from the Sun. This behavior is consistent with radial diffusion. These observations thus also provide a potential constraint on models in which SEPs reach high heliolatitudes by cross-field diffusion.
C1 [Tylka, Allan J.; Ko, Yuan-Kuen] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Malandraki, Olga E.; Dorrian, Gareth] Natl Observ Athens, Inst Astron Astrophys Space Applicat & Remote Sen, Athens 11810, Greece.
[Marsden, Richard G.; Tranquille, Cecil] European Space Agcy SRE SM, Estec, NL-2200 AG Noordwijk, Netherlands.
[Ng, Chee K.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
RP Tylka, AJ (reprint author), USN, Div Space Sci, Res Lab, Code 7680, Washington, DC 20375 USA.
EM allan.tylka@nrl.navy.mil
RI Malandraki, Olga/F-3224-2010; Tylka, Allan/G-9592-2014
FU NASA Heliophysics Guest Investigator Program [DPR NNH09AK79I]; European
Union [263252]
FX The authors thank Dr. Y.M. Wang for providing the PFSS model results,
Dr. Donald V. Reames for the Wind/EPACT/LEMT data, and Prof. Bruce
McKibben for the Ulysses/HET data. This work has been supported by the
NASA Heliophysics Guest Investigator Program under DPR NNH09AK79I and by
the European Union Seventh Framework Programme (FP7/2007-2013) under
grant agreement number 263252 [COMESEP].
NR 57
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U1 0
U2 6
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0038-0938
J9 SOL PHYS
JI Sol. Phys.
PD JUL
PY 2013
VL 285
IS 1-2
BP 251
EP 267
DI 10.1007/s11207-012-0064-z
PG 17
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 138OS
UT WOS:000318518600015
ER
PT J
AU Goldstein, LJ
AF Goldstein, Lyle J.
TI Chinese fisheries enforcement: Environmental and strategic implications
SO MARINE POLICY
LA English
DT Article
DE China; Fisheries enforcement; Maritime disputes; South China Sea; East
China Sea; Yellow Sea
ID MANAGEMENT
AB In almost all of the maritime territorial disputes in East Asia, fisheries questions play a significant role. One need only consider that fishing has been at the heart of serious wrangling among East Asian states from the Yellow Sea, through the East China Sea, and down to the South China Sea in recent years. Chinese fisheries policy might be critical to the possibilities for peaceful resolution of the many maritime territorial disputes in East Asia. Moreover, China's status as the world's largest fishing power also means that Beijing's inclination to accept and practice global fisheries norms could mark a giant step forward for environmental protection of the oceans in the coming century. Drawing on a wide array of unique Chinese Mandarin-language sources, this study seeks to explore the often noted "implementation gap" in Chinese fisheries enforcement practices. The study reveals that Beijing is making gradual and earnest efforts to comply with international environmental norms with respect to fisheries. That is a positive development for the health of the world's oceans, but some of these same policies may also have the impact of aggravating tense maritime disputes in the region as well. Published by Elsevier Ltd.
C1 [Goldstein, Lyle J.] USN, China Maritime Studies Inst, War Coll, Newport, RI 02841 USA.
[Goldstein, Lyle J.] Brown Univ, Watson Inst Int Studies, Providence, RI 02912 USA.
RP Goldstein, LJ (reprint author), USN, China Maritime Studies Inst, War Coll, Newport, RI 02841 USA.
EM lyle.j.goldstein@gmail.com
NR 56
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U1 2
U2 20
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0308-597X
J9 MAR POLICY
JI Mar. Pol.
PD JUL
PY 2013
VL 40
BP 187
EP 193
DI 10.1016/j.marpol.2012.12.007
PG 7
WC Environmental Studies; International Relations
SC Environmental Sciences & Ecology; International Relations
GA 125KR
UT WOS:000317539200022
ER
PT J
AU Zhilyaev, AP
Swaminathan, S
Pshenichnyuk, AI
Langdon, TG
McNelley, TR
AF Zhilyaev, A. P.
Swaminathan, S.
Pshenichnyuk, A. I.
Langdon, T. G.
McNelley, T. R.
TI Adiabatic heating and the saturation of grain refinement during SPD of
metals and alloys: experimental assessment and computer modeling
SO JOURNAL OF MATERIALS SCIENCE
LA English
DT Article
ID HIGH-PRESSURE TORSION; SEVERE PLASTIC-DEFORMATION; COMMERCIAL PURITY
ALUMINUM; MICROSTRUCTURAL EVOLUTION; PURE ALUMINUM; NANOSTRUCTURED
MATERIALS; SIMPLE SHEAR; FCC METALS; NICKEL; STRAIN
AB Severe plastic deformation methods include equal-channel angular pressing/extrusion, high-pressure torsion, and plane strain machining. These methods are extremely effective in producing bulk microstructure refinement and are generally initiated at a low homologous temperature. The resulting deformation-induced microstructures exhibit progressively refined cellular dislocation structures during the initial stages of straining that give way to refined, equiaxed grain structures at larger strains. Often, grain refinement appears to saturate but frequently coarsening is observed at the largest strains after a minimum in grain size is attained during SPD. Here, we summarize results on grain refinement by these processing methods and provide an analysis that incorporates adiabatic heating to explain the progressive refinement to intermediate strains and that may be followed either by an apparent saturation in grain refinement or by grain coarsening at the largest strains. This analysis is consistent with continuous dynamic recrystallization in the absence of the formation and long-range migration of high-angle boundaries.
C1 [Zhilyaev, A. P.; Langdon, T. G.] Univ Southampton, Mat Res Grp, Fac Engn & Environm, Southampton SO17 1BJ, Hants, England.
[Zhilyaev, A. P.; Pshenichnyuk, A. I.] Russian Acad Sci, Inst Met Superplast Problems, Ufa 450001, Russia.
[Swaminathan, S.] GE Global Res, John F Welch Technol Ctr, Bangalore 560066, Karnataka, India.
[Langdon, T. G.] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA.
[Langdon, T. G.] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA.
[McNelley, T. R.] USN, Dept Mech & Aerosp Engn, Postgrad Sch, Monterey, CA 93943 USA.
RP McNelley, TR (reprint author), USN, Dept Mech & Aerosp Engn, Postgrad Sch, Monterey, CA 93943 USA.
EM tmcnelley@nps.edu
RI Zhilyaev, Alexander/E-5624-2010; Langdon, Terence/B-1487-2008;
OI Zhilyaev, Alexander/0000-0002-1902-8703
FU U.S. Air Force Office of Scientific Research [F1ATA06058G001]; U.S.
National Research Council at the Naval Postgraduate School; European
Research Council [267464-SPDMETALS]
FX Partial support for this work was provided by the U.S. Air Force Office
of Scientific Research (Contract F1ATA06058G001, 2006-09, B. Conner,
Scientific Officer). SS acknowledges support under the U.S. National
Research Council Postdoctoral Fellowship Program at the Naval
Postgraduate School. TGL and APZ acknowledge support by the European
Research Council under ERC Grant Agreement No. 267464-SPDMETALS.
NR 44
TC 6
Z9 6
U1 3
U2 34
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0022-2461
EI 1573-4803
J9 J MATER SCI
JI J. Mater. Sci.
PD JUL
PY 2013
VL 48
IS 13
SI SI
BP 4626
EP 4636
DI 10.1007/s10853-013-7254-4
PG 11
WC Materials Science, Multidisciplinary
SC Materials Science
GA 123CY
UT WOS:000317367200023
ER
PT J
AU Pomfret, MB
Steinhurst, DA
Owrutsky, JC
AF Pomfret, Michael B.
Steinhurst, Daniel A.
Owrutsky, Jeffrey C.
TI Ni/YSZ solid oxide fuel cell anodes operating on humidified ethanol fuel
feeds: An optical study
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Solid oxide fuel cell; Ethanol; Thermal imaging; Steam reforming;
Infrared
ID IN-SITU; THERMODYNAMIC ANALYSIS; SOFC ANODES; COMPOSITE ANODES;
DIRECT-ALCOHOL; METHANOL; PERFORMANCE; OXIDATION; PYROLYSIS; SYSTEM
AB Direct internal steam reforming of ethanol fuel in solid oxide fuel cells (SOFCs) has been investigated using near-infrared thermal imaging. Thermal data are correlated to electrochemical analyses, post-mortem photographs of the cells and gas-phase infrared (FTIR) spectroscopy. These techniques allow for an understanding of how gas-phase composition and electrical conditions affect the fuel chemistry on the anode, specifically with regards to carbon formation. Ethanol flows that are humidified to H2O:C2H5OH ratios of 1.58, 1.27, and 1.12 at 700, 750, and 800 degrees C, respectively, result in far less anode damage than dry ethanol. However, subtle spatial variations in anode surface temperature indicate that damage occurs at temperatures below 800 degrees C. FTIR spectra of the fuel feed reaching the anode show that internal steam reforming occurs both in the gas phase and at the anode catalyst. Thermal imaging and post-mortem analysis confirm that humidified ethanol flows at 800 degrees C form negligible amounts of carbon deposits in polarized cells, resulting in minimal anode deterioration. These results serve as benchmark data for the further development of direct, internal reforming SOFC systems, especially in smaller, portable systems. The H2O:C2H5OH ratio used in this work is well below the >3:1 ratios suggested elsewhere. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Pomfret, Michael B.; Owrutsky, Jeffrey C.] USN, Res Lab, Washington, DC 20375 USA.
[Steinhurst, Daniel A.] Nova Res Inc, Alexandria, VA 22308 USA.
RP Pomfret, MB (reprint author), USN, Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
EM michael.pomfret@nrl.navy.mil; daniel.steinhurst.ctr@nrl.navy.mil;
jeff.owrutsky@nrl.navy.mil
FU Office of Naval Research
FX Support for this work was provided by the Office of Naval Research. The
authors acknowledge David A. Kidwell at NRL for help with early
development of this project, Bryan W. Eichhorn at the University of
Maryland College Park, Anthony M. Dean at the Colorado School of Mines,
and Robert A. Walker at Montana State University for helpful
discussions.
NR 60
TC 12
Z9 12
U1 9
U2 106
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
J9 J POWER SOURCES
JI J. Power Sources
PD JUL 1
PY 2013
VL 233
BP 331
EP 340
DI 10.1016/j.jpowsour.2013.01.048
PG 10
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 115QM
UT WOS:000316827000046
ER
PT J
AU Fee, D
Waxler, R
Assink, J
Gitterman, Y
Given, J
Coyne, J
Mialle, P
Garces, M
Drob, D
Kleinert, D
Hofstetter, R
Grenard, P
AF Fee, David
Waxler, Roger
Assink, Jelle
Gitterman, Yefim
Given, Jeffrey
Coyne, John
Mialle, Pierrick
Garces, Milton
Drob, Douglas
Kleinert, Dan
Hofstetter, Rami
Grenard, Patrick
TI Overview of the 2009 and 2011 Sayarim Infrasound Calibration Experiments
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE infrasound; ctbto; acoustic propagation; explosion
ID UPPER-ATMOSPHERE; PROPAGATION; TEMPERATURE; PREDICTION; LOCATION
AB Three large-scale infrasound calibration experiments were conducted in 2009 and 2011 to test the International Monitoring System (IMS) infrasound network and provide ground truth data for infrasound propagation studies. Here we provide an overview of the deployment, detonation, atmospheric specifications, infrasound array observations, and propagation modeling for the experiments. The experiments at the Sayarim Military Range, Israel, had equivalent TNT yields of 96.0, 7.4, and 76.8 t of explosives on 26 August 2009, 24 January 2011, and 26 January 2011, respectively. Successful international collaboration resulted in the deployment of numerous portable infrasound arrays in the region to supplement the IMS network and increase station density. Infrasound from the detonations is detected out to similar to 3500km to the northwest in 2009 and similar to 6300km to the northeast in 2011, reflecting the highly anisotropic nature of long-range infrasound propagation. For 2009, the moderately strong stratospheric wind jet results in a well-predicted set of arrivals at numerous arrays to the west-northwest. A second set of arrivals is also apparent, with low celerities and high frequencies. These arrivals are not predicted by the propagation modeling and result from unresolved atmospheric features. Strong eastward tropospheric winds (up to similar to 70m/s) in 2011 produce high-amplitude tropospheric arrivals recorded out to >1000km to the east. Significant eastward stratospheric winds (up to similar to 80m/s) in 2011 generate numerous stratospheric arrivals and permit the long-range detection (i.e., >1000km). No detections are made in directions opposite the tropospheric and stratospheric wind jets for any of the explosions. Comparison of predicted transmission loss and observed infrasound arrivals gives qualitative agreement. Propagation modeling for the 2011 experiments predicts lower transmission loss in the direction of the downwind propagation compared to the 2009 experiment, consistent with the greater detection distance. Observations also suggest a more northerly component to the stratospheric winds for the 2009 experiment and less upper atmosphere attenuation. The Sayarim infrasound calibration experiments clearly demonstrate the complexity and variability of the atmosphere, and underscore the utility of large-scale calibration experiments with dense networks for better understanding infrasound propagation and detection. Additionally, they provide a rich data set for future scientific research.
C1 [Fee, David] Univ Alaska, Wilson Infrasound Observ, Alaska Volcano Observ, Inst Geophys, Fairbanks, AK 99701 USA.
[Waxler, Roger; Assink, Jelle; Kleinert, Dan] Univ Mississippi, Natl Ctr Phys Acoust, University, MS 38677 USA.
[Gitterman, Yefim; Hofstetter, Rami] Geophys Inst Israel, Seismol Div, IL-71100 Lod, Israel.
[Given, Jeffrey; Coyne, John; Mialle, Pierrick] CTBTO, Int Data Ctr, Vienna, Austria.
[Garces, Milton] Univ Hawaii Manoa, SOEST, HIGP, Infrasound Lab, Manoa, HI USA.
[Drob, Douglas] Naval Res Lab, Upper Atmospher Modeling Sect, Washington, DC USA.
[Grenard, Patrick] CTBTO, Int Monitoring Syst Div, Vienna, Austria.
RP Fee, D (reprint author), Univ Alaska, Wilson Infrasound Observ, Alaska Volcano Observ, Inst Geophys, Fairbanks, AK 99701 USA.
EM dfee@gi.alaska.edu
RI Drob, Douglas/G-4061-2014
OI Drob, Douglas/0000-0002-2045-7740
FU Israel Ministry of Immigrant Absorption; U.S. Army Space and Missile
Defense Command [W9113M-06-C-0029]
FX Many organizations and persons participated in the preparation of
Sayarim calibration explosions, near-source measurements, and data
processing. High-quality explosives in convenient packages were supplied
by IMI Ltd. (I. Veksler) for the 2009 experiment and by EMI Ltd. (Dr. D.
Hershkovich) for the 2011 experiment. Elita Security Ltd. (S. Kobi)
assembled the 2009 charge with maximal concentration of explosives. The
IDF Experiment Division (E. Stempler, Y. Hamshidyan) provided
appropriate territory, logistics, and near-source measurements and
assembled the 2011 ANFO charges with the optimal initiation/detonation
scheme. GII personnel helped in logistics procedures, preparation and
deployment of numerous near-source local observation systems, and data
processing (U. Peled, N. Perelman V. Giller, A. Schwartzburg). Research
work of one of the authors (Y.G.) was supported by the Israel Ministry
of Immigrant Absorption. The MERRA/GEOS-5 data utilized in the G2S
atmospheric specifications were provided by the Global Modeling and
Assimilation Office (GMAO) at NASA Goddard Space Flight Center through
the online data portal in the NASA Center for Climate Simulation. The
NOAA GFS, also utilized in the G2S specifications, was obtained from
NOAA's National Operational Model Archive and Distribution System
(NOMADS), which is maintained at NOAA's National Climatic Data Center
(NCDC). ECWMF specifications were provided by Laslo Evers. This
publication was made possible through support provided by U.S. Army
Space and Missile Defense Command under Contract No. W9113M-06-C-0029.
The opinions expressed herein are those of the authors and do not
necessarily reflect the views of the U.S. Army Space and Missile Defense
Command. The manuscript was substantially improved by reviews from David
Green, Laslo Evers, and an anonymous reviewer. Distribution Statement A:
Approved for public release; distribution is unlimited.
NR 56
TC 13
Z9 13
U1 0
U2 14
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 27
PY 2013
VL 118
IS 12
BP 6122
EP 6143
DI 10.1002/jgrd.50398
PG 22
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 187OY
UT WOS:000322129600015
ER
PT J
AU Eck, TF
Holben, BN
Reid, JS
Mukelabai, MM
Piketh, SJ
Torres, O
Jethva, HT
Hyer, EJ
Ward, DE
Dubovik, O
Sinyuk, A
Schafer, JS
Giles, DM
Sorokin, M
Smirnov, A
Slutsker, I
AF Eck, T. F.
Holben, B. N.
Reid, J. S.
Mukelabai, M. M.
Piketh, S. J.
Torres, O.
Jethva, H. T.
Hyer, E. J.
Ward, D. E.
Dubovik, O.
Sinyuk, A.
Schafer, J. S.
Giles, D. M.
Sorokin, M.
Smirnov, A.
Slutsker, I.
TI A seasonal trend of single scattering albedo in southern African
biomass-burning particles: Implications for satellite products and
estimates of emissions for the world's largest biomass-burning source
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE aerosol absorption; biomass burning; southern Africa
ID AEROSOL OPTICAL DEPTH; OZONE MONITORING INSTRUMENT; SKY RADIANCE
MEASUREMENTS; SAFARI 2000; WAVELENGTH DEPENDENCE; ATMOSPHERIC AEROSOLS;
PHYSICAL-PROPERTIES; AERONET; MODIS; SMOKE
AB As a representative site of the southern African biomass-burning region, sun-sky data from the 15 year Aerosol Robotic Network (AERONET) deployment at Mongu, Zambia, was analyzed. For the biomass-burning season months (July-November), we investigate seasonal trends in aerosol single scattering albedo (SSA), aerosol size distributions, and refractive indices from almucantar sky scan retrievals. The monthly mean single scattering albedo at 440nm in Mongu was found to increase significantly from similar to 0.84 in July to similar to 0.93 in November (from 0.78 to 0.90 at 675nm in these same months). There was no significant change in particle size, in either the dominant accumulation or secondary coarse modes during these months, nor any significant trend in the Angstrom exponent (440-870nm; r(2)=0.02). A significant downward seasonal trend in imaginary refractive index (r(2)=0.43) suggests a trend of decreasing black carbon content in the aerosol composition as the burning season progresses. Similarly, burning season SSA retrievals for the Etosha Pan, Namibia AERONET site also show very similar increasing single scattering albedo values and decreasing imaginary refractive index as the season progresses. Furthermore, retrievals of SSA at 388nm from the Ozone Monitoring Instrument satellite sensor show similar seasonal trends as observed by AERONET and suggest that this seasonal shift is widespread throughout much of southern Africa. A seasonal shift in the satellite retrieval bias of aerosol optical depth from the Moderate Resolution Imaging Spectroradiometer collection 5 dark target algorithm is consistent with this seasonal SSA trend since the algorithm assumes a constant value of SSA. Multi-angle Imaging Spectroradiometer, however, appears less sensitive to the absorption-induced bias.
C1 [Eck, T. F.; Jethva, H. T.] Univ Space Res Assoc, Columbia, MD USA.
[Eck, T. F.; Holben, B. N.; Torres, O.; Jethva, H. T.; Sinyuk, A.; Schafer, J. S.; Giles, D. M.; Sorokin, M.; Smirnov, A.; Slutsker, I.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Reid, J. S.; Hyer, E. J.] Naval Res Lab, Monterey, CA USA.
[Mukelabai, M. M.] Zambian Meteorol Dept, Lusaka, Zambia.
[Piketh, S. J.] North West Univ, Sch Geo & Spatial Sci, Potchefstroom, South Africa.
[Ward, D. E.] White Salmon, Enviropyron, Washington, DC USA.
[Dubovik, O.] Univ Lille, Villeneuve Dascq, France.
[Sinyuk, A.; Schafer, J. S.; Giles, D. M.; Sorokin, M.; Smirnov, A.; Slutsker, I.] Sigma Space Corp, Lanham, MD USA.
RP Eck, TF (reprint author), NASA, Goddard Space Flight Ctr, Code 618, Greenbelt, MD 20771 USA.
EM thomas.f.eck@nasa.gov
RI Dubovik, Oleg/A-8235-2009; Reid, Jeffrey/B-7633-2014; Hyer,
Edward/E-7734-2011; Torres, Omar/G-4929-2013
OI Dubovik, Oleg/0000-0003-3482-6460; Reid, Jeffrey/0000-0002-5147-7955;
Hyer, Edward/0000-0001-8636-2026;
NR 79
TC 29
Z9 29
U1 1
U2 40
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 27
PY 2013
VL 118
IS 12
BP 6414
EP 6432
DI 10.1002/jgrd.50500
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 187OY
UT WOS:000322129600037
ER
PT J
AU Coughlin, MM
Kelly, CK
Lin, S
MacArthur, AHR
AF Coughlin, Mary M.
Kelly, Colin K.
Lin, Shirley
MacArthur, Amy H. Roy
TI Cyanation of Aryl Chlorides Using a Microwave-Assisted, Copper-Catalyzed
Concurrent Tandem Catalysis Methodology
SO ORGANOMETALLICS
LA English
DT Article
ID HALIDES; BROMIDES; HYDRODEHALOGENATION; SYSTEM; WATER; MILD
AB A microwave-assisted, copper-catalyzed concurrent tandem catalytic (CTC) methodology has been developed for the cyanation of aryl chlorides, where the aryl chloride is first converted to an aryl iodide via halogen exchange and the aryl iodide is subsequently transformed to the aryl nitrile. A variety of aryl chlorides were converted to aryl nitriles in 44-97% yield using 20 mol % of CuI, 40 mol % of N,N'-cyclohexane-1,2-diamine, and 1.2 equiv of KCN in acetonitrile at 200 degrees C after 1-2 h. The same copper/ligand system served as a multifunctional catalyst for both steps of the concurrent catalytic process. Unlike our previously reported CTC hydrodehalogenation of aryl chlorides, CTC cyanation was catalytic in iodide. Kinetic simulations of the proposed CTC mechanism were consistent with experimental results and stipulate the relative reaction rates of the two catalytic cycles necessary to achieve reasonable yields of product.
C1 [Coughlin, Mary M.; Kelly, Colin K.; Lin, Shirley; MacArthur, Amy H. Roy] US Naval Acad, Dept Chem, Annapolis, MD 21401 USA.
RP Lin, S (reprint author), US Naval Acad, Dept Chem, 572 Holloway Rd, Annapolis, MD 21401 USA.
EM lin@usna.edu; macarthu@usna.edu
FU Office of Naval Research [NN00014110WX30241, N0001409WR40059]; Naval
Academy Research Council
FX C.K.K. and M.M.C. gratefully acknowledge the Office of Naval Research
for partial support of this work on funding document NN00014110WX30241.
S.L. and A.H.R.M. thank the Naval Academy Research Council and the
Office of Naval Research for partial support of this work on funding
document N0001409WR40059. We thank Prof. Lyle Isaacs at the University
of Maryland College Park for assistance with GEPASI.
NR 21
TC 3
Z9 3
U1 5
U2 22
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0276-7333
EI 1520-6041
J9 ORGANOMETALLICS
JI Organometallics
PD JUN 24
PY 2013
VL 32
IS 12
BP 3537
EP 3543
DI 10.1021/om4004253
PG 7
WC Chemistry, Inorganic & Nuclear; Chemistry, Organic
SC Chemistry
GA 173JD
UT WOS:000321074500013
ER
PT J
AU Erwin, SC
Snijders, PC
AF Erwin, Steven C.
Snijders, Paul C.
TI Silicon spin chains at finite temperature: Dynamics of Si(553)-Au
SO PHYSICAL REVIEW B
LA English
DT Article
ID AUGMENTED-WAVE METHOD; AB-INITIO; ONE-DIMENSION; WIRES; RECONSTRUCTION;
MODELS
AB When gold is deposited on Si(553), the surface self-assembles to form a periodic array of steps with nearly perfect structural order. In scanning tunneling microscopy these steps resemble quasi-one-dimensional atomic chains. At temperatures below similar to 50 K the chains develop a tripled periodicity. We recently predicted, on the basis of density-functional theory calculations at T = 0, that this tripled periodicity arises from the complete polarization of the electron spin on every third silicon atom along the step; in the ground state these linear chains of silicon spins are antiferromagnetically ordered. Here we explore, using ab initio molecular dynamics and kinetic Monte Carlo simulations, the behavior of silicon spin chains on Si(553)-Au at finite temperature. Thermodynamic phase transitions at T > 0 in one-dimensional systems are prohibited by the Mermin-Wagner theorem. Nevertheless we find that a surprisingly sharp onset occurs upon cooling-at about 30 K for perfect surfaces and at higher temperature for surfaces with defects-to a well-ordered phase with tripled periodicity, in good agreement with experiment.
C1 [Erwin, Steven C.] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Snijders, Paul C.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Erwin, SC (reprint author), Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
EM steve.erwin@nrl.navy.mil
FU Office of Naval Research through the Naval Research Laboratory's Basic
Research Program; Department of Energy, Basic Energy Sciences, Materials
Sciences and Engineering Division
FX Many discussions with F. J. Himpsel are gratefully acknowledged. This
work was supported by the Office of Naval Research through the Naval
Research Laboratory's Basic Research Program (SCE) and by the Department
of Energy, Basic Energy Sciences, Materials Sciences and Engineering
Division (PCS). Computations were performed at the DoD Major Shared
Resource Centers at AFRL and ERDC.
NR 35
TC 6
Z9 6
U1 0
U2 31
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 24
PY 2013
VL 87
IS 23
AR UNSP 235316
DI 10.1103/PhysRevB.87.235316
PG 8
WC Physics, Condensed Matter
SC Physics
GA 171SO
UT WOS:000320949600009
ER
PT J
AU Jeschke, HO
Mazin, II
Valenti, R
AF Jeschke, Harald O.
Mazin, I. I.
Valenti, Roser
TI Why MgFeGe is not a superconductor
SO PHYSICAL REVIEW B
LA English
DT Article
ID IRON-PNICTIDES; METALS
AB The recently synthesized MgFeGe compound is isostructural and isoelectronic with superconducting LiFeAs. Both materials are paramagnetic metals at room temperature. Inspection of their electronic structures without spin polarization reveals hardly any difference between the two. This fact was interpreted as evidence against popular theories relating superconductivity in Fe-based materials with spin fluctuations. We show that in the magnetic domain the two compounds are dramatically different, and the fact that MgFeGe does not superconduct, is, on the contrary, a strong argument in favor of theories based on spin fluctuations.
C1 [Jeschke, Harald O.; Valenti, Roser] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany.
[Mazin, I. I.] USN, Res Lab, Washington, DC 20375 USA.
RP Jeschke, HO (reprint author), Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany.
RI Jeschke, Harald/C-3507-2009
OI Jeschke, Harald/0000-0002-8091-7024
FU Office of Naval Research (ONR) through the Naval Research Laboratory's
Basic Research Program; Alexander von Humboldt Foundation; Deutsche
Forschungsgemeinschaft (DFG) [SPP 1458]
FX L.I.M. acknowledges support from the Office of Naval Research (ONR)
through the Naval Research Laboratory's Basic Research Program, and of
the Alexander von Humboldt Foundation. H.O.J. and R.V. acknowledge
support by the Deutsche Forschungsgemeinschaft (DFG) through SPP 1458.
We thank W. Pickett for pointing out to us the existing controversy on
MgFeGe.
NR 24
TC 6
Z9 6
U1 1
U2 35
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 24
PY 2013
VL 87
IS 24
AR 241105
DI 10.1103/PhysRevB.87.241105
PG 4
WC Physics, Condensed Matter
SC Physics
GA 171TD
UT WOS:000320951100001
ER
PT J
AU Vurgaftman, I
Bashkansky, M
AF Vurgaftman, Igor
Bashkansky, Mark
TI Suppressing four-wave mixing in warm-atomic-vapor quantum memory
SO PHYSICAL REVIEW A
LA English
DT Article
ID ELECTROMAGNETICALLY INDUCED TRANSPARENCY; LINEAR OPTICS; ENSEMBLES
AB Warm-atomic-vapor cells may be employed as quantum-memory components in an experimentally convenient implementation of the Duan-Lukin-Cirac-Zoller protocol. Previous studies have shown the performance of these cells is limited by the combination of collisional fluorescence during the writing process and four-wave mixing during the reading process and have proposed to overcome this by a combination of optimized detuning and prepumping with circularly polarized write and read beams. Here we show that the Raman matrix elements involving the excited P (F' = I - 1/2 and F' = I + 1/2) levels of all alkali atoms are always equal in magnitude and opposite in sign when the write and the anti-Stokes (Stokes) photons have the opposite helicity, and the Raman transitions via the two levels interfere destructively. The existence of an optimal detuning is demonstrated for a given dark-count rate of the single-photon detector. The predicted behavior is observed experimentally in a warm Rb cell with buffer gas.
C1 [Vurgaftman, Igor; Bashkansky, Mark] Naval Res Lab, Washington, DC 20375 USA.
RP Vurgaftman, I (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM MWIR_lasers@nrl.navy.mil
NR 17
TC 9
Z9 9
U1 0
U2 13
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
J9 PHYS REV A
JI Phys. Rev. A
PD JUN 21
PY 2013
VL 87
IS 6
AR 063836
DI 10.1103/PhysRevA.87.063836
PG 6
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 169FM
UT WOS:000320764300018
ER
PT J
AU Shkarayev, MS
Schwartz, IB
Shaw, LB
AF Shkarayev, Maxim S.
Schwartz, Ira B.
Shaw, Leah B.
TI Recruitment dynamics in adaptive social networks
SO JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
LA English
DT Article
ID FASHIONS; MODEL; FADS
AB We model recruitment in adaptive social networks in the presence of birth and death processes. Recruitment is characterized by nodes changing their status to that of the recruiting class as a result of contact with recruiting nodes. Only a susceptible subset of nodes can be recruited. The recruiting individuals may adapt their connections in order to improve recruitment capabilities, thus changing the network structure adaptively. We derive a mean-field theory to predict the dependence of the growth threshold of the recruiting class on the adaptation parameter. Furthermore, we investigate the effect of adaptation on the recruitment level, as well as on network topology. The theoretical predictions are compared with direct simulations of the full system. We identify two parameter regimes with qualitatively different bifurcation diagrams depending on whether nodes become susceptible frequently (multiple times in their lifetime) or rarely (much less than once per lifetime).
C1 [Shkarayev, Maxim S.; Shaw, Leah B.] Coll William & Mary, Dept Appl Sci, Williamsburg, VA 23187 USA.
[Schwartz, Ira B.] USN, Res Lab, Nonlinear Syst Dynam Sect, Div Plasma Phys, Washington, DC 20375 USA.
RP Shkarayev, MS (reprint author), Coll William & Mary, Dept Appl Sci, Williamsburg, VA 23187 USA.
EM shkar@iastate.edu
FU Army Research Office; National Institute Of General Medical Sciences
[R01GM090204]; Office of Naval Research; Air Force Office of Scientific
Research; National Institutes of Health
FX MSS and LBS were supported by the Army Research Office, Air Force Office
of Scientific Research, and by Award Number R01GM090204 from the
National Institute Of General Medical Sciences. IBS was supported by the
Office of Naval Research, the Air Force Office of Scientific Research,
and the National Institutes of Health. The content is solely the
responsibility of the authors and does not necessarily represent the
official views of the National Institute Of General Medical Sciences or
the National Institutes of Health.
NR 29
TC 2
Z9 2
U1 1
U2 18
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1751-8113
EI 1751-8121
J9 J PHYS A-MATH THEOR
JI J. Phys. A-Math. Theor.
PD JUN 21
PY 2013
VL 46
IS 24
AR 245003
DI 10.1088/1751-8113/46/24/245003
PG 15
WC Physics, Multidisciplinary; Physics, Mathematical
SC Physics
GA 157QL
UT WOS:000319914000003
PM 25395989
ER
PT J
AU Warren, HP
Mariska, JT
Doschek, GA
AF Warren, Harry P.
Mariska, John T.
Doschek, George A.
TI OBSERVATIONS OF THERMAL FLARE PLASMA WITH THE EUV VARIABILITY EXPERIMENT
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE Sun: corona
ID X-RAY MEASUREMENTS; SOLAR-FLARE; EMISSION MEASURE; ATOMIC DATABASE;
FUNDAMENTAL LIMITATIONS; SPECTRAL PROPERTIES; CURRENT SHEET; CA XIX;
TEMPERATURE; DIAGNOSTICS
AB One of the defining characteristics of a solar flare is the impulsive formation of very high temperature plasma. The properties of the thermal emission are not well understood, however, and the analysis of solar flare observations is often predicated on the assumption that the flare plasma is isothermal. The EUV Variability Experiment (EVE) on the Solar Dynamics Observatory provides spectrally resolved observations of emission lines that span a wide range of temperatures (e.g., Fe xv-Fe xxiv) and allow for thermal flare plasma to be studied in detail. In this paper we describe a method for computing the differential emission measure distribution in a flare using EVE observations and apply it to several representative events. We find that in all phases of the flare the differential emission measure distribution is broad. Comparisons of EVE spectra with calculations based on parameters derived from the Geostationary Operational Environmental Satellites soft X-ray fluxes indicate that the isothermal approximation is generally a poor representation of the thermal structure of a flare.
C1 [Warren, Harry P.; Doschek, George A.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Mariska, John T.] George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA.
RP Warren, HP (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
FU NASA
FX The SDO mission and this research were supported by NASA. H.P.W. thanks
Amir Caspi and Jim McTiernan for many interesting discussion on EVE
flare observations.
NR 40
TC 19
Z9 19
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 JUN 20
PY 2013
VL 770
IS 2
AR 116
DI 10.1088/0004-637X/770/2/116
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 160HZ
UT WOS:000320111200034
ER
PT J
AU Miettinen, J
Hyer, E
Chia, AS
Kwoh, LK
Liew, SC
AF Miettinen, Jukka
Hyer, Edward
Chia, Aik Song
Kwoh, Leong Keong
Liew, Soo Chin
TI Detection of vegetation fires and burnt areas by remote sensing in
insular Southeast Asian conditions: current status of knowledge and
future challenges
SO INTERNATIONAL JOURNAL OF REMOTE SENSING
LA English
DT Review
ID LAND-COVER CHANGE; RESOLUTION SATELLITE DATA; ETM PLUS DATA;
FOREST-FIRES; SPOT-VEGETATION; NOAA-AVHRR; MODIS DATA; DETECTION
ALGORITHM; JAMBI PROVINCE; EASTERN AMAZON
AB The humid tropical insular Southeast Asian region is one of the most biologically diverse areas in the world. It contains around 70Gt of carbon stored in peat deposits susceptible to burning when drained and it has significantly higher population density than any other humid tropical region. This region experiences yearly fire activity of anthropogenic origin with widely varying extent and severity. At the same time, there are several geographic, climatic, and social aspects that complicate fire monitoring in the region. In this review article, we analyse the current knowledge and limitations of active fire detection and burnt area mapping in insular Southeast Asia, highlighting the special characteristics of the region that affect all types of remote-sensing-based regional-level fire monitoring. We conclude that the monitoring methods currently employed have serious limitations that directly affect the reliability of results for fire and burnt area monitoring in this region. With the materials and methods presently available, the regional and global effects of fire activity taking place in insular Southeast Asia are in danger of being underestimated. New approaches utilizing higher spatial and temporal resolution remote-sensing data are needed for more detailed quantification of fire activity and subsequently improved estimation of the effects of fires in this region.
C1 [Miettinen, Jukka; Chia, Aik Song; Kwoh, Leong Keong; Liew, Soo Chin] Natl Univ Singapore, Ctr Remote Imaging Sensing & Proc, Singapore 117548, Singapore.
[Hyer, Edward] USN, Res Lab, Marine Meteorol Div, Monterey, CA USA.
RP Miettinen, J (reprint author), Natl Univ Singapore, Ctr Remote Imaging Sensing & Proc, Singapore 117548, Singapore.
EM jimietti@yahoo.com
RI Liew, Soo Chin/C-9187-2011; Hyer, Edward/E-7734-2011
OI Liew, Soo Chin/0000-0001-8342-4682; Hyer, Edward/0000-0001-8636-2026
FU Agency for Science, Technology and Research (A*STAR) of Singapore; NASA
IDS; NASA Southeast Asia Composition Cloud Climate Coupling Regional
Study (SEAC4RS)
FX The authors from the Centre for Remote Imaging, Sensing and Processing
(CRISP) acknowledge financial support from the Agency for Science,
Technology and Research (A*STAR) of Singapore. Dr Hyer's participation
was supported by NASA IDS and the NASA Southeast Asia Composition Cloud
Climate Coupling Regional Study (SEAC4RS).
NR 123
TC 10
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U1 4
U2 78
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0143-1161
J9 INT J REMOTE SENS
JI Int. J. Remote Sens.
PD JUN 20
PY 2013
VL 34
IS 12
BP 4344
EP 4366
DI 10.1080/01431161.2013.777489
PG 23
WC Remote Sensing; Imaging Science & Photographic Technology
SC Remote Sensing; Imaging Science & Photographic Technology
GA 109UR
UT WOS:000316395000012
ER
PT J
AU Taylor, WRJ
Widjaja, H
Basri, H
Tjitra, E
Ohrt, C
Taufik, T
Baso, S
Hoffman, SL
Richie, TL
AF Taylor, Walter R. J.
Widjaja, Hendra
Basri, Hasan
Tjitra, Emiliana
Ohrt, Colin
Taufik, Taufik
Baso, Samuel
Hoffman, Stephen L.
Richie, Thomas L.
TI Haemoglobin dynamics in Papuan and non-Papuan adults in northeast Papua,
Indonesia, with acute, uncomplicated vivax or falciparum malaria
SO MALARIA JOURNAL
LA English
DT Article
DE Anaemia; Malaria; Papuans; Indonesia
ID TUMOR-NECROSIS-FACTOR; BONE-MARROW CHANGES; RED-BLOOD-CELLS;
PLASMODIUM-FALCIPARUM; IN-VIVO; WESTERN KENYA; FACTOR-ALPHA; ANEMIA;
CHILDREN; ERYTHROPOIETIN
AB Background: Haemoglobin (Hb) recovers slowly in malaria and may be influenced by naturally acquired immunity. Hb recovery was compared in malaria immune, indigenous Papuan and non-Papuan adults with limited malaria exposure.
Methods: Hb concentrations were measured on Days (D) 0, 3, 7, and 28 in 57 Papuans and 105 non-Papuans treated with chloroquine, doxycycline or both drugs for acute, uncomplicated Plasmodium vivax (n = 64) or Plasmodium falciparum (n = 98).
Results: Mean (SD, range) D0 Hb was 12.7 (2.2, 7-21.3) g/dL and was similar in P. falciparum infected Papuans and non-Papuans: 12.2 vs. 12.8 g/dL (P = 0.15) but significantly lower in: (i) P. vivax-infected Papuans vs. P. vivax-infected non-Papuans: 11.4 vs. 13.47 g/dL [Delta = -2.07 (95% CI: -3.3 - -0.8), P = 0.0018], (ii) all patients with splenomegaly (vs. those without splenomegaly): 12.16 vs. 13.01 g/dL [Delta = -0.85 (-1.6- -0.085), P = 0.029], and (iii) all females vs. all males: 10.18 vs. 13.01 g/dL [Delta = -2.82 (-3.97 - -1.67), P < 0.0001]. Multiple regression identified female sex (P = 0.000), longer illness duration (P = 0.015) (P. falciparum patients) and Papuan ethnicity (P = 0.017) (P. vivax patients) as significant factors for a lower D0 Hb. Mean D28 Hb increased to 13.6 g/dL [Delta = 1.01 (0.5-1.5) vs. D0 Hb, P = 0.0001]. It was: (i) positively correlated with the D0 Hb (adjusted R-2 = 0.24, P = 0.000), and was significantly lower in P. vivax infected Papuans vs. non-Papuans: 12.71 vs. 14.46 g/dL [Delta = -1.7 (-2.95- -0.5, P = 0.006).
Conclusions: Haemoglobin recovery was related to baseline Hb. Vivax-infected malaria immune Papuans had persistently lower Hb concentrations compared to non-Papuans with limited malaria exposure. This haematological disadvantage remains unexplained.
C1 [Taylor, Walter R. J.; Widjaja, Hendra; Basri, Hasan; Richie, Thomas L.] US Navy Med Res Unit 2 NAMRU 2, Jakarta, Indonesia.
[Taylor, Walter R. J.] Tulane Univ, Sch Publ Hlth, Dept Trop Med, New Orleans, LA 70118 USA.
[Tjitra, Emiliana] Natl Inst Hlth, Ctr Hlth Res & Dev, Jakarta, Indonesia.
[Ohrt, Colin] Armed Forces Res Inst Med Sci, Bangkok 10400, Thailand.
[Taufik, Taufik] Indonesian Naval Hosp, Jayapura, Papua, Indonesia.
[Baso, Samuel] Rumah Sakit Umum, Jayapura, Papua, Indonesia.
[Hoffman, Stephen L.] USN, Med Res Ctr, Bethesda, MD 20084 USA.
RP Taylor, WRJ (reprint author), US Navy Med Res Unit 2 NAMRU 2, Jakarta, Indonesia.
EM bob@tropmedres.ac
OI Richie, Thomas/0000-0002-2946-5456
FU US Naval Medical Research and Development Command [DoD 63002A M00101 HEX
2406]
FX This study was funded by the US Naval Medical Research and Development
Command (DoD 63002A M00101 HEX 2406).
NR 39
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U1 0
U2 1
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1475-2875
J9 MALARIA J
JI Malar. J.
PD JUN 19
PY 2013
VL 12
AR 209
DI 10.1186/1475-2875-12-209
PG 9
WC Infectious Diseases; Parasitology; Tropical Medicine
SC Infectious Diseases; Parasitology; Tropical Medicine
GA 168QA
UT WOS:000320719400001
PM 23777546
ER
PT J
AU Kuschner, RA
Russell, KL
Abuja, M
Bauer, KM
Faix, DJ
Hait, H
Henrick, J
Jacobs, M
Liss, A
Lynch, JA
Liu, Q
Lyons, AG
Malik, M
Moon, JE
Stubbs, J
Sun, W
Tang, D
Towle, AC
Walsh, DS
Wilkerson, D
AF Kuschner, Robert A.
Russell, Kevin L.
Abuja, Mary
Bauer, Kristen M.
Faix, Dennis J.
Hait, Howard
Henrick, Jennifer
Jacobs, Michael
Liss, Alan
Lynch, Julia A.
Liu, Qi
Lyons, Arthur G.
Malik, Mohammad
Moon, James E.
Stubbs, Jeremiah
Sun, Wellington
Tang, Doug
Towle, Andrew C.
Walsh, Douglas S.
Wilkerson, Deborah
CA Adenovirus Vaccine Efficacy Trial
TI A phase 3, randomized, double-blind, placebo-controlled study of the
safety and efficacy of the live, oral adenovirus type 4 and type 7
vaccine, in US military recruits
SO VACCINE
LA English
DT Article
DE Adenovirus Type 4 and Type 7 vaccine, live, oral; Adenovirus Type 4;
ADV-4; Adenovirus Type 7; ADV-7; Oral vaccine; Live vaccines; Acute
respiratory infection
ID ACUTE RESPIRATORY-DISEASE; DIPLOID TISSUE CULTURE; SELECTIVE INFECTION;
RELATIVE RISK; SAMPLE-SIZE; IMMUNIZATION; EMERGENCE; POTENCY
AB Adenovirus (ADV) types 4 (ADV-4) and 7 (ADV-7) are presently the major cause of febrile acute respiratory disease (ARD) in U.S. military recruits. We conducted a multi-center, randomized, double-blind, placebo-controlled phase 3 study of the new vaccine to assess its safety and efficacy. Healthy adults at two basic training sites were randomly assigned to receive either vaccine (two enteric-coated tablets consisting of no less than 4.5 log(10) TCID50 of live ADV-4 or ADV-7) or placebo in a 3:1 ratio. Volunteers were observed throughout the approximate eight weeks of their basic training and also returned for four scheduled visits. The primary endpoints were prevention of febrile ARD due to ADV-4 and seroconversion of neutralizing serum antibodies to ADV-7, which was not expected to circulate in the study population during the course of the trial. A total of 4151 volunteers were enrolled and 4040 (97%) were randomized and included in the primary analysis (110 were removed prior to randomization and one was removed after randomization due to inability to swallow tablets). A total of 49 ADV-4 febrile ARD cases were identified with 48 in the placebo group and 1 in the vaccine group (attack rates of 4.76% and 0.03%, respectively). Vaccine efficacy was 99.3% (95% CI, 96.0-99.9; P<0.001). Seroconversion rates for vaccine recipients for ADV-4 and ADV-7 were 94.5% (95% Cl, 93.4-95.5%) and 93.8% (95% CI: 93.4-95.2%), respectively. The vaccine was well tolerated as compared to placebo. We conclude that the new live, oral ADV-4 and ADV-7 vaccine is safe and effective for use in groups represented by the study population. Published by Elsevier Ltd.
C1 [Kuschner, Robert A.; Bauer, Kristen M.; Lynch, Julia A.; Lyons, Arthur G.; Moon, James E.; Stubbs, Jeremiah; Sun, Wellington; Tang, Doug; Walsh, Douglas S.] Walter Reed Army Inst Res, Silver Spring, MD 20910 USA.
[Russell, Kevin L.; Abuja, Mary; Faix, Dennis J.] Naval Hlth Res Ctr, San Diego, CA USA.
[Hait, Howard; Henrick, Jennifer; Liss, Alan; Wilkerson, Deborah] Barr Labs Inc, Pomona, NY USA.
[Jacobs, Michael; Malik, Mohammad] Captain James A Lovell Fed Hlth Care Ctr, N Chicago, IL USA.
[Liu, Qi] Barr Labs, Newtown, PA USA.
[Towle, Andrew C.] VaccGen Int LLC, Larchmont, NY USA.
RP Kuschner, RA (reprint author), Walter Reed Army Inst Res, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM robert.a.kuschner.mil@mail.mil; Kevin.russell4@us.army.mil;
mary.abuja@med.navy.mil; Kristen.Bauer@afrims.org;
dennis.faix@med.navy.mil; howardhait@edenridgeassociates.com;
jennifer.henrick@tevapharm.com; michael.jacobs@med.navy.mil;
alan.liss@fda.hhs.gov; Julia.lynch@us.army.mil; Qi.liu@msn.com;
Arthur.lyons@us.army.mil; Mohammad.malik@va.gov;
james.e.moon@us.army.mil; jeremiah.stubbs@us.army.mil;
wellington.sun@fda.hhs.gov; dtang38@verizon.net; andy_t1@msn.com;
douglas.walsh@afrims.org; debbie.s.wilkerson@medtronic.com
RI Moon, James/B-6810-2011
OI Moon, James/0000-0002-9274-4554
FU DoD [DAMD17-01-C-0058]
FX The opinions expressed herein are the private views of the authors and
are not to be construed as official viewpoints of the U.S. Departments
of State, Army, Navy or Defense. This study was funded (in part) by DoD
Contract DAMD17-01-C-0058 to Barr Laboratories.
NR 24
TC 15
Z9 16
U1 0
U2 7
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0264-410X
J9 VACCINE
JI Vaccine
PD JUN 19
PY 2013
VL 31
IS 28
BP 2963
EP 2971
DI 10.1016/j.vaccine.2013.04.035
PG 9
WC Immunology; Medicine, Research & Experimental
SC Immunology; Research & Experimental Medicine
GA 175KW
UT WOS:000321230600008
PM 23623865
ER
PT J
AU Shabaev, A
Hellberg, CS
Efros, AL
AF Shabaev, Andrew
Hellberg, C. Stephen
Efros, Alexander L.
TI Efficiency of Multiexciton Generation in Colloidal Nanostructures
SO ACCOUNTS OF CHEMICAL RESEARCH
LA English
DT Review
ID MULTIPLE EXCITON GENERATION; PBSE QUANTUM DOTS; CARRIER MULTIPLICATION
EFFICIENCY; SEMICONDUCTOR NANOCRYSTALS; ELECTRONIC-STRUCTURE;
OPTICAL-PROPERTIES; CDSE NANOCRYSTALS; SOLAR-CELLS; LIMIT
AB Solar energy production, one of the world's most important unsolved problems, has the potential to be a source of dean, renewable energy if scientists can find a way of generating cheap and efficient solar cells. Generation of multiple excitons from single photons is one way to increase the efficiency of solar energy collection, but the process suffers from low efficiency in bulk materials. An increase of multiexciton generation efficiency in nanocrystals was proposed by Nozik in 2002 and demonstrated by Schaller and Klimov in 2004 in PbSe nanocrystals. Since then, scientists have observed efficient multiexciton generation in nanostructures made of many semiconductors using various measurement techniques.
Although the experimental evidence of efficient carrier multiplication is overwhelming, there is no complete theory of this phenomenon. Researchers cannot develop such a theory without a self-consistent description of the Coulomb interaction and a knowledge of mechanisms of electron and hole thermalization In nanostructures. The full theoretical description requires the strength of the Coulomb interaction between exciton and multiexciton states and the thermalization rates, which both vary with the dimensionality of the confining potential. As a result, the efficiency of multiexciton generation depends strongly on the material and the shape of the nanostructure.
In this Account, we discuss the theoretical aspects of efficient carrier multiplication in nanostructures. The Coulomb interaction couples single excitons with multiexciton states. Phenomenological many-electron calculations of the evolution of single-photon excitations have shown that efficient multiexciton generation can exist only if the rate of the Coulomb mixing between photo-created exciton and biexciton states is significantly faster than the rate of exciton relaxation. Therefore, to Increase multiexciton generation efficiency, we need to either increase the exciton-biexciton mixing rate or suppress the exciton relaxation rate. Following this simple recipe, we show that multiexciton generation efficiency should be higher in semiconductor nanorods and nanoplatelets, which have stronger exciton-biexciton coupling due to the enhancement of the Coulomb interaction through the surrounding medium.
C1 [Shabaev, Andrew; Efros, Alexander L.] George Mason Univ, Fairfax, VA 22030 USA.
[Hellberg, C. Stephen; Efros, Alexander L.] Naval Res Lab, Washington, DC 20375 USA.
RP Efros, AL (reprint author), George Mason Univ, Fairfax, VA 22030 USA.
EM efros@nrl.navy.mil
FU Center for Advanced Solar Photophysics (CASP) an Energy Frontier
Research Center; OBES, OS, U.S. DOE; Office of Naval Research
FX We thank Victor Klimov, Arthur Nozik, Matthew Beard, Wayne Witzel, and
Verne Jacobs for stimulating discussions. A.S. acknowledges support of
the Center for Advanced Solar Photophysics (CASP) an Energy Frontier
Research Center founded by OBES, OS, U.S. DOE; C.S.H. and A.L.E.
acknowledge support of the Office of Naval Research.
NR 35
TC 27
Z9 27
U1 5
U2 82
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0001-4842
J9 ACCOUNTS CHEM RES
JI Accounts Chem. Res.
PD JUN 18
PY 2013
VL 46
IS 6
BP 1242
EP 1251
DI 10.1021/ar300283j
PG 10
WC Chemistry, Multidisciplinary
SC Chemistry
GA 169AG
UT WOS:000320748700002
PM 23461547
ER
PT J
AU Caldwell, JD
Giles, A
Lepage, D
Carrier, D
Moumanis, K
Hull, BA
Stahlbush, RE
Myers-Ward, RL
Dubowski, JJ
Verhaegen, M
AF Caldwell, Joshua D.
Giles, Alexander
Lepage, Dominic
Carrier, Dominic
Moumanis, Khalid
Hull, Brett A.
Stahlbush, Robert E.
Myers-Ward, Rachael L.
Dubowski, Jan J.
Verhaegen, Marc
TI Experimental evidence for mobile luminescence center mobility on partial
dislocations in 4H-SiC using hyperspectral electroluminescence imaging
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID STACKING-FAULT FORMATION; I-N-DIODES; PIN DIODES; DEFECTS; PROPAGATION;
EXPANSION; INJECTION; CRYSTALS; DEVICES
AB We report on the formation, motion, and concentration of localized green emission centers along partial dislocations (PDs) bounding recombination-induced stacking faults (RISFs) in 4H-SiC pin diodes. Electroluminescence imaging depicted the motion of these green emitting point defects during forward bias operation along carbon-core PDs that bound the RISFs. Following high temperature annealing, these green emitting point defects did not contract with the PDs, but remained in the final location during the expansion. This implies that the motion of these green emitting point dislocations is enabled through a recombination-enhanced motion, similar to the process for RISF expansion and contraction within SiC. (C) 2013 AIP Publishing LLC.
C1 [Caldwell, Joshua D.; Stahlbush, Robert E.; Myers-Ward, Rachael L.] USN, Res Lab, Washington, DC 20375 USA.
[Giles, Alexander] Univ N Carolina, Charlotte, NC 28223 USA.
[Lepage, Dominic; Carrier, Dominic; Moumanis, Khalid; Dubowski, Jan J.] Univ Sherbrooke, Dept Elect & Comp Engn, Lab Quantum Semicond & Photon Based Bionanotechno, Sherbrooke, PQ J1K 2R1, Canada.
[Hull, Brett A.] Cree Inc, Res Triangle Pk, NC 27709 USA.
[Verhaegen, Marc] Photon Etc, Montreal, PQ H2S 2X3, Canada.
RP Caldwell, JD (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM joshua.caldwell@nrl.navy.mil
RI Caldwell, Joshua/B-3253-2008
OI Caldwell, Joshua/0000-0003-0374-2168
NR 41
TC 4
Z9 4
U1 3
U2 31
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 17
PY 2013
VL 102
IS 24
AR 242109
DI 10.1063/1.4810909
PG 4
WC Physics, Applied
SC Physics
GA 171XC
UT WOS:000320962400050
ER
PT J
AU Urick, VJ
Hutchinson, MN
Singley, JM
McKinney, JD
Williams, KJ
AF Urick, Vincent J.
Hutchinson, Meredith N.
Singley, Joseph M.
McKinney, Jason D.
Williams, Keith J.
TI Suppression of even-order photodiode distortions via predistortion
linearization with a bias-shifted Mach-Zehnder modulator
SO OPTICS EXPRESS
LA English
DT Article
ID INTERMODULATION DISTORTION
AB A new technique to cancel photodiode-induced even-order distortion in microwave photonic links is demonstrated. A single Mach-Zehnder modulator, biased slightly away from the quadrature point, is shown to suppress photodiode second-order intermodulation distortion in excess of 40 dB without affecting the fundamental power. The technique is theoretically described with supporting experimental results. (C) 2013 Optical Society of America
C1 [Urick, Vincent J.; Hutchinson, Meredith N.; Singley, Joseph M.; McKinney, Jason D.; Williams, Keith J.] Naval Res Lab, Div Opt Sci, Washington, DC 20375 USA.
RP Urick, VJ (reprint author), Naval Res Lab, Div Opt Sci, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM vincent.urick@nrl.navy.mil
NR 12
TC 9
Z9 9
U1 1
U2 13
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1094-4087
J9 OPT EXPRESS
JI Opt. Express
PD JUN 17
PY 2013
VL 21
IS 12
BP 14368
EP 14376
DI 10.1364/OE.21.014368
PG 9
WC Optics
SC Optics
GA 165UI
UT WOS:000320510300048
PM 23787625
ER
PT J
AU Prokes, SM
Glembocki, OJ
Livenere, JE
Tumkur, TU
Kitur, JK
Zhu, G
Wells, B
Podolskiy, VA
Noginov, MA
AF Prokes, S. M.
Glembocki, Orest J.
Livenere, J. E.
Tumkur, T. U.
Kitur, J. K.
Zhu, G.
Wells, B.
Podolskiy, V. A.
Noginov, M. A.
TI Hyperbolic and plasmonic properties of Silicon/Ag aligned nanowire
arrays
SO OPTICS EXPRESS
LA English
DT Article
ID NEGATIVE REFRACTION; OPTICAL HYPERLENS; THIN-FILMS; METAMATERIALS;
GROWTH; LASERS; SCALE; INDEX
AB The hyperbolic and plasmonic properties of silicon nanowire/Ag arrays have been investigated. The aligned nanowire arrays were formed and coated by atomic layer deposition of Ag, which itself is a metamaterial due to its unique mosaic film structure. The theoretical and numerical studies suggest that the fabricated arrays have hyperbolic dispersion in the visible and IR ranges of the spectrum. The theoretical predictions have been indirectly confirmed by polarized reflection spectra, showing reduction of the reflection in p polarization in comparison to that in s polarization. Studies of dye emission on top of Si/Ag nanowire arrays show strong emission quenching and shortening of dye emission kinetics. This behavior is also consistent with the predictions for hyperbolic media. The measured SERS signals were enhanced by almost an order of magnitude for closely packed and aligned nanowires, compared to random nanowire composites. These results agree with electric field simulations of these array structures. (C) 2013 Optical Society of America
C1 [Prokes, S. M.; Glembocki, Orest J.] USN, Elect Sci & Technol Div, Res Lab, Washington, DC 20375 USA.
[Livenere, J. E.; Tumkur, T. U.; Kitur, J. K.; Zhu, G.; Noginov, M. A.] Norfolk State Univ, Ctr Mat Res, Norfolk, VA 23504 USA.
[Wells, B.; Podolskiy, V. A.] Univ Massachusetts, Dept Phys & Appl Phys, Lowell, MA 01854 USA.
RP Prokes, SM (reprint author), USN, Elect Sci & Technol Div, Res Lab, Washington, DC 20375 USA.
EM Prokes@nrl.navy.mil
RI Tumkur, Thejaswi/L-3635-2016
OI Tumkur, Thejaswi/0000-0001-6390-0362
FU Office of Naval Research; NSF PREM [DMR-1205457]; NSF IGERT
[DGE-0966188]; AFOSR [FA9550-09-1-0456]; NSF MWN [DMR-1209761]; ARO
[W911NF-12-1-0533]
FX The authors would like to thank Eric Epstein, Hua Qi, Alice King and
Erin Cleveland for experimental assistance. The authors also thank
Evgenii Narimanov for useful discussions. The authors thank the Office
of Naval Research for financial support. J.E.L., T.U.T, J.K.K, G.Z, and
M.A.N. acknowledge the supported by the NSF PREM grant DMR-1205457, NSF
IGERT grant DGE-0966188, and AFOSR grant FA9550-09-1-0456, V.P.
acknowledges support from NSF MWN grant DMR-1209761 and ARO grant
W911NF-12-1-0533.
NR 58
TC 17
Z9 18
U1 1
U2 86
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1094-4087
J9 OPT EXPRESS
JI Opt. Express
PD JUN 17
PY 2013
VL 21
IS 12
BP 14962
EP 14974
DI 10.1364/OE.21.014962
PG 13
WC Optics
SC Optics
GA 165UI
UT WOS:000320510300107
PM 23787684
ER
PT J
AU Adamczyk, L
Adkins, JK
Agakishiev, G
Aggarwal, MM
Ahammed, Z
Alekseev, I
Alford, J
Anson, CD
Aparin, A
Arkhipkin, D
Aschenauer, E
Averichev, GS
Balewski, J
Banerjee, A
Barnovska, Z
Beavis, DR
Bellwied, R
Betancourt, MJ
Betts, RR
Bhasin, A
Bhati, AK
Bhattarai
Bichsel, H
Bielcik, J
Bielcikova, J
Bland, LC
Bordyuzhin, IG
Borowski, W
Bouchet, J
Brandin, AV
Brovko, SG
Bruna, E
Bultmann, S
Bunzarov, I
Burton, TP
Butterworth, J
Cai, XZ
Caines, H
Sanchez, MCD
Cebra, D
Cendejas, R
Cervantes, MC
Chaloupka, P
Chang, Z
Chattopadhyay, S
Chen, HF
Chen, JH
Chen, JY
Chen, L
Cheng, J
Cherney, M
Chikanian, A
Christie, W
Chung, P
Chwastowski, J
Codrington, MJM
Corliss, R
Cramer, JG
Crawford, HJ
Cui, X
Das, S
Leyva, AD
De Silva, LC
Debbe, RR
Dedovich, TG
Deng, J
de Souza, RD
Dhamija, S
di Ruzza, B
Didenko, L
Ding, F
Dion, A
Djawotho, P
Dong, X
Drachenberg, JL
Draper, JE
Du, CM
Dunkelberger, LE
Dunlop, JC
Efimov, LG
Elnimr, M
Engelage, J
Eppley, G
Eun, L
Evdokimov, O
Fatemi, R
Fazio, S
Fedorisin, J
Fersch, RG
Filip, P
Finch, E
Fisyak, Y
Flores, E
Gagliardi, CA
Gangadharan, DR
Garand, D
Geurts, F
Gibson, A
Gliske, S
Grebenyuk, OG
Grosnick, D
Gupta, A
Gupta, S
Guryn, W
Haag, B
Hajkova, O
Hamed, A
Han, LX
Harris, JW
Hays-Wehle, JP
Heppelmann, S
Hirsch, A
Hoffmann, GW
Hofman, DJ
Horvat, S
Huang, B
Huang, HZ
Huck, P
Humanic, TJ
Igo, G
Jacobs, WW
Jena, C
Judd, EG
Kabana, S
Kang, K
Kapitan, J
Kauder, K
Ke, HW
Keane, D
Kechechyan, A
Kesich, A
Kikola, DP
Kiryluk, J
Kisel, I
Kisiel, A
Klein, SR
Koetke, DD
Kollegger, T
Konzer, J
Koralt, I
Korsch, W
Kotchenda, L
Kravtsov, P
Krueger, K
Kulakov, I
Kumar, L
Lamont, MAC
Landgraf, JM
Landry, KD
LaPointe, S
Lauret, J
Lebedev, A
Lednicky, R
Lee, JH
Leight, W
LeVine, MJ
Li, C
Li, W
Li, X
Li, X
Li, Y
Li, ZM
Lima, LM
Lisa, MA
Liu, F
Ljubicic, T
Llope, WJ
Longacre, RS
Lu, Y
Luo, X
Luszczak, A
Ma, GL
Ma, YG
Don, DMMDM
Mahapatra, DP
Majka, R
Margetis, S
Markert, C
Masui, H
Matis, HS
McDonald, D
McShane, TS
Mioduszewski, S
Mitrovski, MK
Mohammed, Y
Mohanty, B
Mondal, MM
Munhoz, MG
Mustafa, MK
Naglis, M
Nandi, BK
Nasim, M
Nayak, TK
Nelson, JM
Nogach, LV
Novak, J
Odyniec, G
Ogawa, A
Oh, K
Ohlson, A
Okorokov, V
Oldag, EW
Oliveira, RAN
Olson, D
Pachr, M
Page, BS
Pal, SK
Pan, YX
Pandit, Y
Panebratsev, Y
Pawlak, T
Pawlik, B
Pei, H
Perkins, C
Peryt, W
Pile, P
Planinic, M
Pluta, J
Poljak, N
Porter, J
Poskanzer, AM
Powell, CB
Pruneau, C
Pruthi, NK
Przybycien, M
Pujahari, PR
Putschke, J
Qiu, H
Ramachandran, S
Raniwala, R
Raniwala, S
Ray, RL
Redwine, R
Riley, CK
Ritter, HG
Roberts, JB
Rogachevskiy, OV
Romero, JL
Ross, JF
Ruan, L
Rusnak, J
Sahoo, NR
Sahu, PK
Sakrejda, I
Salur, S
Sandacz, A
Sandweiss, J
Sangaline, E
Sarkar, A
Schambach, J
Scharenberg, RP
Schmah, AM
Schmidke, B
Schmitz, N
Schuster, TR
Seele, J
Seger, J
Seyboth, P
Shah, N
Shahaliev, E
Shao, M
Sharma, B
Sharma, M
Shi, SS
Shou, QY
Sichtermann, EP
Singaraju, RN
Skoby, MJ
Smirnov, D
Smirnov, N
Solanki, D
Sorensen, P
deSouza, UG
Spinka, HM
Srivastava, B
Stanislaus, TDS
Steadman, SG
Stevens, JR
Stock, R
Strikhanov, M
Stringfellow, B
Suaide, AAP
Suarez, MC
Sumbera, M
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Svirida, DN
Symons, TJM
de Toledo, AS
Takahashi, J
Tang, AH
Tang, Z
Tarini, LH
Tarnowsky, T
Thomas, JH
Tian, J
Timmins, AR
Tlusty, D
Tokarev, M
Trentalange, S
Tribble, RE
Tribedy, P
Trzeciak, BA
Tsai, OD
Turnau, J
Ullrich, T
Underwood, DG
Van Buren, G
van Nieuwenhuizen, G
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Videbaek, F
Viyogi, YP
Vokal, S
Voloshin, SA
Vossen, A
Wada, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, Q
Wang, XL
Wang, Y
Webb, G
Webb, JC
Westfall, GD
Whitten, C
Wieman, H
Wissink, SW
Witt, R
Wu, YF
Xiao, Z
Xie, W
Xin, K
Xu, H
Xu, N
Xu, QH
Xu, W
Xu, Y
Xu, Z
Xue, L
Yang, Y
Yang, Y
Yepes, P
Yi, L
Yip, K
Yoo, IK
Zawisza, M
Zbroszczyk, H
Zhang, JB
Zhang, S
Zhang, XP
Zhang, Y
Zhang, ZP
Zhao, F
Zhao, J
Zhong, C
Zhu, X
Zhu, YH
Zoulkarneeva, Y
Zyzak, M
AF Adamczyk, L.
Adkins, J. K.
Agakishiev, G.
Aggarwal, M. M.
Ahammed, Z.
Alekseev, I.
Alford, J.
Anson, C. D.
Aparin, A.
Arkhipkin, D.
Aschenauer, E.
Averichev, G. S.
Balewski, J.
Banerjee, A.
Barnovska, Z.
Beavis, D. R.
Bellwied, R.
Betancourt, M. J.
Betts, R. R.
Bhasin, A.
Bhati, A. K.
Bhattarai
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Bland, L. C.
Bordyuzhin, I. G.
Borowski, W.
Bouchet, J.
Brandin, A. V.
Brovko, S. G.
Bruna, E.
Bueltmann, S.
Bunzarov, I.
Burton, T. P.
Butterworth, J.
Cai, X. Z.
Caines, H.
Sanchez, M. Calderon de la Barca
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chaloupka, P.
Chang, Z.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Chen, L.
Cheng, J.
Cherney, M.
Chikanian, A.
Christie, W.
Chung, P.
Chwastowski, J.
Codrington, M. J. M.
Corliss, R.
Cramer, J. G.
Crawford, H. J.
Cui, X.
Das, S.
Leyva, A. Davila
De Silva, L. C.
Debbe, R. R.
Dedovich, T. G.
Deng, J.
Derradi de Souza, R.
Dhamija, S.
di Ruzza, B.
Didenko, L.
Ding, F.
Dion, A.
Djawotho, P.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, C. M.
Dunkelberger, L. E.
Dunlop, J. C.
Efimov, L. G.
Elnimr, M.
Engelage, J.
Eppley, G.
Eun, L.
Evdokimov, O.
Fatemi, R.
Fazio, S.
Fedorisin, J.
Fersch, R. G.
Filip, P.
Finch, E.
Fisyak, Y.
Flores, E.
Gagliardi, C. A.
Gangadharan, D. R.
Garand, D.
Geurts, F.
Gibson, A.
Gliske, S.
Grebenyuk, O. G.
Grosnick, D.
Gupta, A.
Gupta, S.
Guryn, W.
Haag, B.
Hajkova, O.
Hamed, A.
Han, L-X.
Harris, J. W.
Hays-Wehle, J. P.
Heppelmann, S.
Hirsch, A.
Hoffmann, G. W.
Hofman, D. J.
Horvat, S.
Huang, B.
Huang, H. Z.
Huck, P.
Humanic, T. J.
Igo, G.
Jacobs, W. W.
Jena, C.
Judd, E. G.
Kabana, S.
Kang, K.
Kapitan, J.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Kesich, A.
Kikola, D. P.
Kiryluk, J.
Kisel, I.
Kisiel, A.
Klein, S. R.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Koralt, I.
Korsch, W.
Kotchenda, L.
Kravtsov, P.
Krueger, K.
Kulakov, I.
Kumar, L.
Lamont, M. A. C.
Landgraf, J. M.
Landry, K. D.
LaPointe, S.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, J. H.
Leight, W.
LeVine, M. J.
Li, C.
Li, W.
Li, X.
Li, X.
Li, Y.
Li, Z. M.
Lima, L. M.
Lisa, M. A.
Liu, F.
Ljubicic, T.
Llope, W. J.
Longacre, R. S.
Lu, Y.
Luo, X.
Luszczak, A.
Ma, G. L.
Ma, Y. G.
Don, D. M. M. D. Madagodagettige
Mahapatra, D. P.
Majka, R.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
McDonald, D.
McShane, T. S.
Mioduszewski, S.
Mitrovski, M. K.
Mohammed, Y.
Mohanty, B.
Mondal, M. M.
Munhoz, M. G.
Mustafa, M. K.
Naglis, M.
Nandi, B. K.
Nasim, Md.
Nayak, T. K.
Nelson, J. M.
Nogach, L. V.
Novak, J.
Odyniec, G.
Ogawa, A.
Oh, K.
Ohlson, A.
Okorokov, V.
Oldag, E. W.
Oliveira, R. A. N.
Olson, D.
Pachr, M.
Page, B. S.
Pal, S. K.
Pan, Y. X.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Pawlik, B.
Pei, H.
Perkins, C.
Peryt, W.
Pile, P.
Planinic, M.
Pluta, J.
Poljak, N.
Porter, J.
Poskanzer, A. M.
Powell, C. B.
Pruneau, C.
Pruthi, N. K.
Przybycien, M.
Pujahari, P. R.
Putschke, J.
Qiu, H.
Ramachandran, S.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Redwine, R.
Riley, C. K.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Ross, J. F.
Ruan, L.
Rusnak, J.
Sahoo, N. R.
Sahu, P. K.
Sakrejda, I.
Salur, S.
Sandacz, A.
Sandweiss, J.
Sangaline, E.
Sarkar, A.
Schambach, J.
Scharenberg, R. P.
Schmah, A. M.
Schmidke, B.
Schmitz, N.
Schuster, T. R.
Seele, J.
Seger, J.
Seyboth, P.
Shah, N.
Shahaliev, E.
Shao, M.
Sharma, B.
Sharma, M.
Shi, S. S.
Shou, Q. Y.
Sichtermann, E. P.
Singaraju, R. N.
Skoby, M. J.
Smirnov, D.
Smirnov, N.
Solanki, D.
Sorensen, P.
deSouza, U. G.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Steadman, S. G.
Stevens, J. R.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Suaide, A. A. P.
Suarez, M. C.
Sumbera, M.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Svirida, D. N.
Symons, T. J. M.
Szanto de Toledo, A.
Takahashi, J.
Tang, A. H.
Tang, Z.
Tarini, L. H.
Tarnowsky, T.
Thomas, J. H.
Tian, J.
Timmins, A. R.
Tlusty, D.
Tokarev, M.
Trentalange, S.
Tribble, R. E.
Tribedy, P.
Trzeciak, B. A.
Tsai, O. D.
Turnau, J.
Ullrich, T.
Underwood, D. G.
Van Buren, G.
van Nieuwenhuizen, G.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Vossen, A.
Wada, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, Q.
Wang, X. L.
Wang, Y.
Webb, G.
Webb, J. C.
Westfall, G. D.
Whitten, C., Jr.
Wieman, H.
Wissink, S. W.
Witt, R.
Wu, Y. F.
Xiao, Z.
Xie, W.
Xin, K.
Xu, H.
Xu, N.
Xu, Q. H.
Xu, W.
Xu, Y.
Xu, Z.
Xue, L.
Yang, Y.
Yang, Y.
Yepes, P.
Yi, L.
Yip, K.
Yoo, I-K.
Zawisza, M.
Zbroszczyk, H.
Zhang, J. B.
Zhang, S.
Zhang, X. P.
Zhang, Y.
Zhang, Z. P.
Zhao, F.
Zhao, J.
Zhong, C.
Zhu, X.
Zhu, Y. H.
Zoulkarneeva, Y.
Zyzak, M.
CA STAR Collaboration
TI System-size dependence of transverse momentum correlations at root
s(NN)=62.4 and 200 GeV at the BNL Relativistic Heavy Ion Collider
SO PHYSICAL REVIEW C
LA English
DT Article
ID BY-EVENT FLUCTUATIONS; PLUS PB COLLISIONS; QUARK-GLUON PLASMA; AU-AU
COLLISIONS; MEAN-P(T) FLUCTUATIONS; NUCLEAR COLLISIONS; SIGNATURES;
DYNAMICS; MODEL; RATIO
AB We present a study of the average transverse momentum (p(t)) fluctuations and p(t) correlations for charged particles produced in Cu + Cu collisions at midrapidity for root s(NN) = 62.4 and 200 GeV. These results are compared with those published for Au + Au collisions at the same energies, to explore the system size dependence. In addition to the collision energy and system size dependence, the p(t) correlation results have been studied as functions of the collision centralities, the ranges in p(t), the pseudorapidity eta, and the azimuthal angle phi. The square root of the measured p(t) correlations when scaled by mean p(t) is found to be independent of both colliding beam energy and system size studied. Transport-based model calculations are found to have a better quantitative agreement with the measurements compared to models which incorporate only jetlike correlations.
C1 [Adamczyk, L.; Przybycien, M.] AGH Univ Sci & Technol, Krakow, Poland.
[Gliske, S.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Nelson, J. M.] Univ Birmingham, Birmingham, W Midlands, England.
[Arkhipkin, D.; Aschenauer, E.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; di Ruzza, B.; Didenko, L.; Dion, A.; Dunlop, J. C.; Fazio, S.; Fisyak, Y.; Guryn, W.; Huang, B.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Mitrovski, M. K.; Ogawa, A.; Pile, P.; Ruan, L.; Schmidke, B.; Smirnov, D.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Wang, H.; Webb, J. C.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Crawford, H. J.; Engelage, J.; Judd, E. G.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Brovko, S. G.; Sanchez, M. Calderon de la Barca; Cebra, D.; Ding, F.; Draper, J. E.; Flores, E.; Haag, B.; Kesich, A.; Romero, J. L.; Sangaline, E.] Univ Calif Davis, Davis, CA 95616 USA.
[Dunkelberger, L. E.; Huang, H. Z.; Igo, G.; Landry, K. D.; Pan, Y. X.; Shah, N.; Trentalange, S.; Tsai, O. D.; Wang, G.; Whitten, C., Jr.; Xu, W.; Zhao, F.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[Derradi de Souza, R.; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil.
[Chen, J. Y.; Chen, L.; Huck, P.; Ke, H. W.; Li, Z. M.; Liu, F.; Luo, X.; Shi, S. S.; Wu, Y. F.; Zhang, J. B.] Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China.
[Betts, R. R.; Evdokimov, O.; Hofman, D. J.; Kauder, K.; Pandit, Y.; Pei, H.; Suarez, M. C.] Univ Illinois, Chicago, IL 60607 USA.
[Chwastowski, J.; Luszczak, A.] Cracow Univ Technol, Krakow, Poland.
[Cherney, M.; Don, D. M. M. D. Madagodagettige; McShane, T. S.; Ross, J. F.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Chaloupka, P.; Hajkova, O.; Pachr, M.] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic.
[Barnovska, Z.; Bielcikova, J.; Chung, P.; Kapitan, J.; Rusnak, J.; Sumbera, M.; Tlusty, D.] Nucl Phys Inst AS CR, Rez 25068, Czech Republic.
[Kollegger, T.; Schuster, T. R.; Stock, R.] Goethe Univ Frankfurt, D-60054 Frankfurt, Germany.
[Das, S.; Mahapatra, D. P.; Sahu, P. K.] Inst Phys, Bhubaneswar 751005, Orissa, India.
[Nandi, B. K.; Pujahari, P. R.; Sarkar, A.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India.
[Dhamija, S.; Jacobs, W. W.; Page, B. S.; Skoby, M. J.; Vossen, A.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA.
[Alekseev, I.; Bordyuzhin, I. G.; Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow, Russia.
[Bhasin, A.; Gupta, A.; Gupta, S.] Univ Jammu, Jammu 180001, India.
[Agakishiev, G.; Aparin, A.; Averichev, G. S.; Bunzarov, I.; Dedovich, T. G.; Efimov, L. G.; Fedorisin, J.; Filip, P.; Kechechyan, A.; Lednicky, R.; Panebratsev, Y.; Rogachevskiy, O. V.; Shahaliev, E.; Tokarev, M.; Vokal, S.; Zoulkarneeva, Y.] Joint Inst Nucl Res, Dubna 141980, Russia.
[Alford, J.; Bouchet, J.; Keane, D.; Kumar, L.; Margetis, S.; Vanfossen, J. A., Jr.] Kent State Univ, Kent, OH 44242 USA.
[Adkins, J. K.; Fatemi, R.; Fersch, R. G.; Korsch, W.; Ramachandran, S.; Webb, G.] Univ Kentucky, Lexington, KY 40506 USA.
[Du, C. M.; Sun, Z.; Wang, J. S.; Xu, H.] Inst Modern Phys, Lanzhou, Peoples R China.
[Dong, X.; Eun, L.; Grebenyuk, O. G.; Kiryluk, J.; Kisel, I.; Klein, S. R.; Kulakov, I.; Masui, H.; Matis, H. S.; Naglis, M.; Odyniec, G.; Olson, D.; Porter, J.; Poskanzer, A. M.; Powell, C. B.; Qiu, H.; Ritter, H. G.; Sakrejda, I.; Salur, S.; Schmah, A. M.; Sichtermann, E. P.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Wieman, H.; Xu, N.; Zyzak, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Balewski, J.; Betancourt, M. J.; Corliss, R.; Hays-Wehle, J. P.; Leight, W.; Redwine, R.; Seele, J.; Steadman, S. G.; Stevens, J. R.; van Nieuwenhuizen, G.] MIT, Cambridge, MA 02139 USA.
[Schmitz, N.; Seyboth, P.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Novak, J.; Tarnowsky, T.; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA.
[Brandin, A. V.; Kotchenda, L.; Kravtsov, P.; Okorokov, V.; Strikhanov, M.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Jena, C.; Mohanty, B.] Natl Inst Sci Educ & Res, Bhubaneswar 751005, Orissa, India.
[Anson, C. D.; Gangadharan, D. R.; Humanic, T. J.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA.
[Bueltmann, S.; Koralt, I.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Pawlik, B.; Turnau, J.] Inst Nucl Phys PAN, Krakow, Poland.
[Aggarwal, M. M.; Bhati, A. K.; Pruthi, N. K.; Sharma, B.] Panjab Univ, Chandigarh 160014, India.
[Cendejas, R.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA.
[Nogach, L. V.] Inst High Energy Phys, Protvino, Russia.
[Garand, D.; Hirsch, A.; Kikola, D. P.; Konzer, J.; Mustafa, M. K.; Scharenberg, R. P.; Srivastava, B.; Stringfellow, B.; Wang, F.; Wang, Q.; Xie, W.; Yi, L.] Purdue Univ, W Lafayette, IN 47907 USA.
[Oh, K.; Yoo, I-K.] Pusan Natl Univ, Pusan 609735, South Korea.
[Raniwala, R.; Raniwala, S.; Solanki, D.] Univ Rajasthan, Jaipur 302004, Rajasthan, India.
[Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W. J.; McDonald, D.; Roberts, J. B.; Xin, K.; Yepes, P.] Rice Univ, Houston, TX 77251 USA.
[Lima, L. M.; Munhoz, M. G.; Oliveira, R. A. N.; deSouza, U. G.; Suaide, A. A. P.; Szanto de Toledo, A.] Univ Sao Paulo, Sao Paulo, Brazil.
[Chen, H. F.; Cui, X.; Li, C.; Lu, Y.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Zhang, Y.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Deng, J.; Xu, Q. H.] Shandong Univ, Jinan 250100, Shandong, Peoples R China.
[Cai, X. Z.; Chen, J. H.; Han, L-X.; Li, W.; Ma, G. L.; Ma, Y. G.; Shou, Q. Y.; Tian, J.; Xue, L.; Zhang, S.; Zhao, J.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Borowski, W.; Kabana, S.] SUBATECH, Nantes, France.
[Surrow, B.] Temple Univ, Philadelphia, PA 19122 USA.
[Cervantes, M. C.; Chang, Z.; Djawotho, P.; Gagliardi, C. A.; Hamed, A.; Mioduszewski, S.; Mohammed, Y.; Mondal, M. M.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.
[Bhattarai; Codrington, M. J. M.; Leyva, A. Davila; Hoffmann, G. W.; Markert, C.; Oldag, E. W.; Ray, R. L.; Schambach, J.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA.
[Bellwied, R.; De Silva, L. C.; Timmins, A. R.] Univ Houston, Houston, TX 77204 USA.
[Cheng, J.; Kang, K.; Li, Y.; Wang, Y.; Xiao, Z.; Zhang, X. P.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China.
[Witt, R.] USN Acad, Annapolis, MD 21402 USA.
[Drachenberg, J. L.; Gibson, A.; Grosnick, D.; Koetke, D. D.; Stanislaus, T. D. S.] Valparaiso Univ, Valparaiso, IN 46383 USA.
[Ahammed, Z.; Banerjee, A.; Chattopadhyay, S.; Nasim, Md.; Nayak, T. K.; Pal, S. K.; Sahoo, N. R.; Singaraju, R. N.; Tribedy, P.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata 700064, India.
[Kisiel, A.; Pawlak, T.; Peryt, W.; Pluta, J.; Sandacz, A.; Trzeciak, B. A.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Bichsel, H.; Cramer, J. G.] Univ Washington, Seattle, WA 98195 USA.
[Elnimr, M.; LaPointe, S.; Pruneau, C.; Putschke, J.; Sharma, M.; Tarini, L. H.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.
[Bruna, E.; Caines, H.; Chikanian, A.; Finch, E.; Harris, J. W.; Horvat, S.; Majka, R.; Ohlson, A.; Riley, C. K.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA.
[Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia.
RP Adamczyk, L (reprint author), AGH Univ Sci & Technol, Krakow, Poland.
RI Aparecido Negrao de Oliveira, Renato/G-9133-2015; Bruna,
Elena/C-4939-2014; Chaloupka, Petr/E-5965-2012; Huang,
Bingchu/H-6343-2015; Derradi de Souza, Rafael/M-4791-2013; Suaide,
Alexandre/L-6239-2016; Xin, Kefeng/O-9195-2016; Yi, Li/Q-1705-2016;
Svirida, Dmitry/R-4909-2016; Inst. of Physics, Gleb
Wataghin/A-9780-2017; Okorokov, Vitaly/C-4800-2017; Ma,
Yu-Gang/M-8122-2013; Voloshin, Sergei/I-4122-2013; Pandit,
Yadav/I-2170-2013; Lednicky, Richard/K-4164-2013; Takahashi,
Jun/B-2946-2012; Fazio, Salvatore /G-5156-2010; Yang,
Yanyun/B-9485-2014; Rusnak, Jan/G-8462-2014; Bielcikova,
Jana/G-9342-2014; Alekseev, Igor/J-8070-2014; Sumbera,
Michal/O-7497-2014; Strikhanov, Mikhail/P-7393-2014; Xu,
Wenqin/H-7553-2014; XIAO, Zhigang/C-3788-2015
OI Bhasin, Anju/0000-0002-3687-8179; Bruna, Elena/0000-0001-5427-1461;
Huang, Bingchu/0000-0002-3253-3210; Derradi de Souza,
Rafael/0000-0002-2084-7001; Suaide, Alexandre/0000-0003-2847-6556; Xin,
Kefeng/0000-0003-4853-9219; Yi, Li/0000-0002-7512-2657; Okorokov,
Vitaly/0000-0002-7162-5345; Ma, Yu-Gang/0000-0002-0233-9900; Mohanty,
Bedangadas/0000-0001-9610-2914; Pandit, Yadav/0000-0003-2809-7943;
Takahashi, Jun/0000-0002-4091-1779; Yang, Yanyun/0000-0002-5982-1706;
Alekseev, Igor/0000-0003-3358-9635; Sumbera, Michal/0000-0002-0639-7323;
Strikhanov, Mikhail/0000-0003-2586-0405; Xu, Wenqin/0000-0002-5976-4991;
FU Offices of NP and HEP within the US DOE Office of Science; US NSF; Sloan
Foundation; CNRS/IN2P3; FAPESP CNPq of Brazil; Ministry of Education and
Science of the Russian Federation; NNSFC of China; CAS of China; MoST of
China; MoE of China; GA of the Czech Republic; MSMT of the Czech
Republic; FOM of the Netherlands; NWO of the Netherlands; DAE of India;
DST of India; CSIR of India; Polish Ministry of Science and Higher
Education; National Research Foundation [NRF-2012004024]; Ministry of
Science, Education and Sports of the Republic of Croatia; RosAtom of
Russia; RCF at BNL; NERSC Center at LBNL; Open Science Grid consortium
FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at
LBNL and the Open Science Grid consortium for providing resources and
support. This work was supported in part by the Offices of NP and HEP
within the US DOE Office of Science, the US NSF, the Sloan Foundation,
CNRS/IN2P3, FAPESP CNPq of Brazil, Ministry of Education and Science of
the Russian Federation, NNSFC, CAS, MoST, and MoE of China, GA and MSMT
of the Czech Republic, FOM and NWO of the Netherlands, DAE, DST, and
CSIR of India, the Polish Ministry of Science and Higher Education, the
National Research Foundation (NRF-2012004024), the Ministry of Science,
Education and Sports of the Republic of Croatia, and RosAtom of Russia.
NR 58
TC 2
Z9 2
U1 0
U2 44
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 17
PY 2013
VL 87
IS 6
AR 064902
DI 10.1103/PhysRevC.87.064902
PG 11
WC Physics, Nuclear
SC Physics
GA 167CR
UT WOS:000320608700004
ER
PT J
AU Mlynczak, MG
Hunt, LA
Mast, JC
Marshall, BT
Russell, JM
Smith, AK
Siskind, DE
Yee, JH
Mertens, CJ
Martin-Torres, FJ
Thompson, RE
Drob, DP
Gordley, LL
AF Mlynczak, Martin G.
Hunt, Linda A.
Mast, Jeffrey C.
Marshall, B. Thomas
Russell, James M., III
Smith, Anne K.
Siskind, David E.
Yee, Jeng-Hwa
Mertens, Christopher J.
Martin-Torres, F. Javier
Thompson, R. Earl
Drob, Douglas P.
Gordley, Larry L.
TI Atomic oxygen in the mesosphere and lower thermosphere derived from
SABER: Algorithm theoretical basis and measurement uncertainty
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE Atomic oxygen; Mesopause; Airglow; Ozone; Energy budget
ID VIBRATIONALLY EXCITED OH; KINETIC-PARAMETERS; MIDDLE ATMOSPHERE;
HYDROXYL AIRGLOW; MOLECULAR-OXYGEN; LOWER IONOSPHERE; MU-M; NIGHTGLOW;
OZONE; ROCKET
AB Atomic oxygen (O) is a fundamental component in chemical aeronomy of Earth's mesosphere and lower thermosphere region extending from approximately 50km to over 100km in altitude. Atomic oxygen is notoriously difficult to measure, especially with remote sensing techniques from orbiting satellite sensors. It is typically inferred from measurements of the ozone concentration in the day or from measurements of the Meinel band emission of the hydroxyl radical (OH) at night. The Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument on the NASA Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics (TIMED) satellite measures OH emission and ozone for the purpose of determining the O-atom concentration. In this paper, we present the algorithms used in the derivation of day and night atomic oxygen from these measurements. We find excellent consistency between the day and night O-atom concentrations from daily to annual time scales. We also examine in detail the collisional relaxation of the highly vibrationally excited OH molecule at night measured by SABER. Large rate coefficients for collisional removal of vibrationally excited OH molecules by atomic oxygen are consistent with the SABER observations if the deactivation of OH(9) proceeds solely by collisional quenching. An uncertainty analysis of the derived atomic oxygen is also given. Uncertainty in the rate coefficient for recombination of O and molecular oxygen is shown to be the largest source of uncertainty in the derivation of atomic oxygen day or night.
C1 [Mlynczak, Martin G.; Mertens, Christopher J.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Hunt, Linda A.; Mast, Jeffrey C.] Sci Syst & Applicat Inc, Hampton, VA USA.
[Marshall, B. Thomas; Thompson, R. Earl; Gordley, Larry L.] G&A Tech Software, Newport News, VA USA.
[Russell, James M., III] Hampton Univ, Hampton, VA 23668 USA.
[Smith, Anne K.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Siskind, David E.; Drob, Douglas P.] Naval Res Lab, Washington, DE USA.
[Yee, Jeng-Hwa] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
[Martin-Torres, F. Javier] Ctr Astrobiol CSIC INTA, Madrid, Spain.
RP Mlynczak, MG (reprint author), NASA, Langley Res Ctr, Hampton, VA 23665 USA.
EM m.g.mlynczak@nasa.gov
RI Drob, Douglas/G-4061-2014; Martin-Torres, Francisco Javier/G-6329-2015
OI Drob, Douglas/0000-0002-2045-7740; Martin-Torres, Francisco
Javier/0000-0001-6479-2236
NR 46
TC 25
Z9 25
U1 3
U2 15
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 16
PY 2013
VL 118
IS 11
BP 5724
EP 5735
DI 10.1002/jgrd.50401
PG 12
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 228TG
UT WOS:000325212600037
ER
PT J
AU Mlynczak, MG
Hunt, LH
Mertens, CJ
Marshall, BT
Russell, JM
Puertas, ML
Smith, AK
Siskind, DE
Mast, JC
Thompson, RE
Gordley, LL
AF Mlynczak, Martin G.
Hunt, Linda H.
Mertens, Christopher J.
Marshall, B. Thomas
Russell, James M., III
Puertas, Manuel Lopez
Smith, Anne K.
Siskind, David E.
Mast, Jeffrey C.
Thompson, R. Earl
Gordley, Larry L.
TI Radiative and energetic constraints on the global annual mean atomic
oxygen concentration in the mesopause region
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE atomic oxygen; energy balance; radiative constraints; mesopause;
airglow; ozone
ID MIDDLE ATMOSPHERE; BANDS; MODEL; TEMPERATURE; PHOTOLYSIS
AB We present a new approach to constrain and validate atomic oxygen (O) concentrations in the mesopause region (similar to 80 to similar to 100 km). In a prior companion paper [Mlynczak et al., ], we presented O-atom concentrations in the mesopause region inferred from measurements of day ozone and night hydroxyl emission rates made by the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument. The approach presented here uses the constraint of global, annual mean energy balance to derive atomic oxygen concentrations, consistent with rates of radiative cooling by carbon dioxide (CO2) and solar heating due to molecular oxygen (O-2). The mathematical difference between these cooling and heating rates, on a global annual mean basis, effectively constrains the maximum heating rate for the sum of all other processes. The remaining terms, solar heating due to ozone plus a series of exothermic chemical reactions can be expressed as functions of O. This new approach enables a simple mathematical expression that yields the vertical profile of global annual mean radiatively constrained atomic oxygen in the mesopause region. The radiatively constrained atomic oxygen depends only on the CO2 cooling rates, O-2 solar heating rates, and standard reaction rate coefficients and enthalpies. Radiative cooling and solar heating rates used in these analyses are derived from measurements made by the SABER instrument on the NASA Thermosphere Ionosphere Mesosphere Energetics and Dynamics satellite. There is excellent agreement between the SABER radiatively constrained atomic oxygen and that derived from the SABER ozone and OH emission measurements over most of the mesopause region. Radiatively constrained atomic oxygen represents an upper limit on the global average O-atom concentration in the mesopause region.
C1 [Mlynczak, Martin G.; Mertens, Christopher J.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Hunt, Linda H.; Mast, Jeffrey C.] Sci Syst & Applicat Inc, Hampton, VA USA.
[Marshall, B. Thomas; Thompson, R. Earl; Gordley, Larry L.] G&A Tech Software, Newport News, VA USA.
[Russell, James M., III] Hampton Univ, Hampton, VA 23668 USA.
[Puertas, Manuel Lopez] IAA CSIC, Granada, Spain.
[Smith, Anne K.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Siskind, David E.] Naval Res Lab, Washington, DC USA.
RP Mlynczak, MG (reprint author), NASA, Langley Res Ctr, Hampton, VA 23665 USA.
EM m.g.mlynczak@nasa.gov
RI Lopez Puertas, Manuel/M-8219-2013
OI Lopez Puertas, Manuel/0000-0003-2941-7734
NR 13
TC 7
Z9 7
U1 0
U2 3
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 16
PY 2013
VL 118
IS 11
BP 5796
EP 5802
DI 10.1002/jgrd.50400
PG 7
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 228TG
UT WOS:000325212600042
ER
PT J
AU Krall, J
Huba, JD
AF Krall, J.
Huba, J. D.
TI SAMI3 simulation of plasmasphere refilling
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE plasmasphere; refilling
ID DENSITY; IMAGE; PLASMAPAUSE; DYNAMICS; CLUSTER
AB The Naval Research Laboratory three-dimensional, first-principles simulation code SAMI3 (Sami3 is Also a Model of the Ionosphere) is used to model plasmasphere refilling. A time-dependent Volland-Stern-Maynard-Chen potential is used to model an idealized magnetic storm that erodes the plasmasphere to L<3. The potential is then relaxed to the prestorm state, and refilling is simulated for a range of L shells 3L5 over a period of 7days. Refilling rates compare well to observed refilling rates. The model plasmasphere during this quiet period displays a day-to-day repetition in its morphology that has not been previously observed
C1 [Krall, J.; Huba, J. D.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Krall, J (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM jonathan.krall@nrl.navy.mil
FU NRL; NASA LWS
FX This research was supported by NRL Base Funds and the NASA LWS Program.
We thank Richard Denton for helpful discussions.
NR 21
TC 10
Z9 10
U1 0
U2 3
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JUN 16
PY 2013
VL 40
IS 11
BP 2484
EP 2488
DI 10.1002/grl.50458
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 175VL
UT WOS:000321261600002
ER
PT J
AU Barrett, BS
Gensini, VA
AF Barrett, Bradford S.
Gensini, Victor A.
TI Variability of central United States April-May tornado day likelihood by
phase of the Madden-Julian Oscillation
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE tornado; intraseasonal variability; Madden-Julian Oscillation
ID GLOBAL ATMOSPHERIC CIRCULATION; NINO-SOUTHERN-OSCILLATION; FORECAST
PARAMETERS; SEVERE THUNDERSTORM; NORTHERN WINTER; MJO; MODULATION;
PRECIPITATION; CLIMATOLOGY; CONVECTION
AB April-May tornado day likelihood from 1990 to 2011 was calculated for the central United States for phases of the Madden-Julian Oscillation (MJO). An April tornado day was found more likely during MJO phases 6 and 8 and less likely during phases 3, 4, and 7. A May tornado day was found more likely during phases 5 and 8 and less likely in phases 2 and 3. During phases with above-normal tornado day likelihoods, positive anomalies of convective available potential energy, bulk vertical wind shear, and storm-relative helicity were found in the central United States. Negative anomalies were found during phases with below-normal tornado day likelihoods. Anomalies of such environmental parameters were connected to the MJO via variability in tropospheric circulation. These results provide an important starting point for extended range prediction of U.S. tornado activity.
C1 [Barrett, Bradford S.] USN Acad, Dept Oceanog, Annapolis, MD 21402 USA.
[Gensini, Victor A.] Coll DuPage, Meteorol Program, Glen Ellyn, IL USA.
RP Barrett, BS (reprint author), USN Acad, Dept Oceanog, 572C Holloway Rd, Annapolis, MD 21402 USA.
EM bbarrett@usna.edu
FU National Science Foundation [AGS-1240143]
FX The authors would like to thank the anonymous reviewers for many helpful
comments to improve the manuscript. Partial support for this research
came from National Science Foundation grant AGS-1240143.
NR 43
TC 13
Z9 13
U1 1
U2 17
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JUN 16
PY 2013
VL 40
IS 11
BP 2790
EP 2795
DI 10.1002/grl.50522
PG 6
WC Geosciences, Multidisciplinary
SC Geology
GA 175VL
UT WOS:000321261600057
ER
PT J
AU Siskind, DE
Stevens, MH
Hervig, ME
Randall, CE
AF Siskind, David E.
Stevens, Michael H.
Hervig, Mark E.
Randall, Cora E.
TI Recent observations of high mass density polar mesospheric clouds: A
link to space traffic?
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE mesosphere; water vapor; ice clouds
ID VARIABILITY; SHUTTLE; SUMMER
AB Observations of polar mesospheric clouds by the Aeronomy of Ice in the Mesosphere Explorer show that for the Northern summers of 2007-2010, the cloud ice water content (IWC) and occurrence frequency varied with the meteorological forcing from the Southern winter stratosphere. With the increase in solar flux in the last two years, expectations were that the clouds would decrease due to reduced water vapor (H2O) and/or higher temperatures. Surprisingly, we observe more clouds in 2011 and 40% greater IWC in 2011 and 2012. The increase is particularly pronounced in the clouds with highest IWC. These high IWC clouds are associated with significant enhancements in total H2O (vapor and ice). We suggest this implies an additional source of H2O and that this is provided by space traffic exhaust. A preliminary estimate of the H2O released from summertime space traffic over the last six years is qualitatively consistent with this suggestion
C1 [Siskind, David E.; Stevens, Michael H.] Naval Res Lab, Div Space Sci, Washington, DC USA.
[Hervig, Mark E.] GATS Inc, Driggs, ID USA.
[Randall, Cora E.] Univ Colorado, Boulder, CO 80309 USA.
RP Siskind, DE (reprint author), Naval Res Lab, Div Space Sci, Washington, DC USA.
EM david.siskind@nrl.navy.mil
RI Randall, Cora/L-8760-2014;
OI Randall, Cora/0000-0002-4313-4397; Stevens, Michael/0000-0003-1082-8955
FU NASA Aeronomy of Ice in the Mesosphere (AIM) project, under NASA's Small
Explorers Program
FX This work was funded by the NASA Aeronomy of Ice in the Mesosphere (AIM)
project, under NASA's Small Explorers Program.
NR 20
TC 9
Z9 9
U1 1
U2 6
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JUN 16
PY 2013
VL 40
IS 11
BP 2813
EP 2817
DI 10.1002/grl.50540
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 175VL
UT WOS:000321261600061
ER
PT J
AU Dey, S
Szymczak, WG
Sarkissian, A
Bucaro, JA
AF Dey, S.
Szymczak, W. G.
Sarkissian, A.
Bucaro, J. A.
TI Scattering from targets in three-dimensional littoral and surf-zone
environments with multi-layered elastic sediments based on an
interior-transmission formulation
SO COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
LA English
DT Article
DE Scattering; Target-strength; Littoral; Finite element;
Structural-acoustics; Multi-layered sediment; PML
ID PERFECTLY MATCHED LAYER; FINITE-ELEMENT MODEL; BOUNDARY-CONDITIONS;
EQUATIONS; WAVES; OBJECTS; PML
AB We present a new numerical approach to compute the three-dimensional scattering of acoustic and elastic waves from elastic objects buried in multi-layered elastic sediments. We use a frequency-domain approach and utilize an elastodynamics formulation based on an interior-transmission representation of the scattering problem. This enables us to use the perfectly-matched-layer approximation (PML) method for exterior truncation while avoiding some fundamental problems associated with the truncation of the non-homogeneous exterior domains with coupled elasto-acoustics. We present several examples that verify the new formulation and its finite-element-based numerical implementation. We also demonstrate its application to important problems involving the computation of scattered fields from buried elastic objects buried in littoral or surf-zone domains with a multi-layered sediment modeled as three-dimensional visco-elastic material. Published by Elsevier B.V.
C1 [Dey, S.; Szymczak, W. G.; Sarkissian, A.] USN, Res Lab, Washington, DC 20375 USA.
[Bucaro, J. A.] Excet Inc, Springfield, VA 22151 USA.
RP Dey, S (reprint author), USN, Res Lab, Code 7131, Washington, DC 20375 USA.
EM saikat.dey@nrl.navy.mil
FU Office of Naval Research
FX This work is supported by the Office of Naval Research.
NR 21
TC 0
Z9 0
U1 1
U2 7
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0045-7825
J9 COMPUT METHOD APPL M
JI Comput. Meth. Appl. Mech. Eng.
PD JUN 15
PY 2013
VL 260
BP 24
EP 39
DI 10.1016/j.cma.2013.03.017
PG 16
WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary
Applications; Mechanics
SC Engineering; Mathematics; Mechanics
GA 161UJ
UT WOS:000320218500002
ER
PT J
AU Rush, T
LeardMann, C
Crum-Cianflone, N
AF Rush, Toni
LeardMann, Cynthia
Crum-Cianflone, Nancy
TI OBESITY AND ASSOCIATED ADVERSE HEALTH OUTCOMES AMONG US MILITARY
MEMBERS.
SO AMERICAN JOURNAL OF EPIDEMIOLOGY
LA English
DT Meeting Abstract
C1 [Rush, Toni; LeardMann, Cynthia; Crum-Cianflone, Nancy] USN, Hlth Res Ctr, San Diego, CA 92106 USA.
NR 0
TC 0
Z9 0
U1 1
U2 4
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 0002-9262
J9 AM J EPIDEMIOL
JI Am. J. Epidemiol.
PD JUN 15
PY 2013
VL 177
SU 11
BP S72
EP S72
PG 1
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA 157BL
UT WOS:000319870300286
ER
PT J
AU Wells, T
Seelig, A
Ryan, M
Jones, J
Hooper, T
Boyko, E
AF Wells, Timothy
Seelig, Amber
Ryan, Margaret
Jones, Jason
Hooper, Tomoko
Boyko, Edward
TI SELF-REPORTED HEARING LOSS IN THE MILLENNIUM COHORT.
SO AMERICAN JOURNAL OF EPIDEMIOLOGY
LA English
DT Meeting Abstract
C1 [Wells, Timothy; Seelig, Amber; Ryan, Margaret; Jones, Jason; Hooper, Tomoko; Boyko, Edward] USN, Hlth Res Ctr, San Diego, CA 92106 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 0002-9262
J9 AM J EPIDEMIOL
JI Am. J. Epidemiol.
PD JUN 15
PY 2013
VL 177
SU 11
BP S76
EP S76
PG 1
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA 157BL
UT WOS:000319870300302
ER
PT J
AU Woodall, K
Jacobson, I
Crum-Cianflone, N
AF Woodall, Kelly
Jacobson, Isabel
Crum-Cianflone, Nancy
TI COMBAT EXPERIENCES AND MULTIPLE DEPLOYMENTS ARE RISK FACTORS FOR MOTOR
VEHICLE CRASHES.
SO AMERICAN JOURNAL OF EPIDEMIOLOGY
LA English
DT Meeting Abstract
C1 [Woodall, Kelly; Jacobson, Isabel; Crum-Cianflone, Nancy] USN, Hlth Res Ctr, San Diego, CA 92106 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 0002-9262
J9 AM J EPIDEMIOL
JI Am. J. Epidemiol.
PD JUN 15
PY 2013
VL 177
SU 11
BP S76
EP S76
PG 1
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA 157BL
UT WOS:000319870300300
ER
PT J
AU Kolel-Veetil, MK
Dominguez, DD
Klug, CA
Fears, KP
Qadri, SB
Fragiadakis, D
Keller, TM
AF Kolel-Veetil, Manoj K.
Dominguez, Dawn D.
Klug, Christopher A.
Fears, Kenan P.
Qadri, Syed B.
Fragiadakis, Daniel
Keller, Teddy M.
TI Hybrid inorganicorganic poly(carborane-siloxane-arylacetylene)
structural isomers with in-chain aromatics: Synthesis and properties
SO JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
LA English
DT Article
DE acetylene; addition polymerization; arylacetylene;
carboranylenesiloxane; carborane; cycloaddition; crosslinking;
dielectric properties; disilylmethylene; glass transition; high
temperature materials; infrared spectroscopy; inorganic-organic;
network; mechanical properties; NMR; PCSA; PCSAA; siloxane; thermal
properties; X-ray
ID P-DIETHYNYLBENZENE; D2-M-CARBORANE SILOXANES; VIBRATIONAL-SPECTRA;
UNPAIRED ELECTRON; INFRARED-SPECTRA; LOW-TEMPERATURE; POLYMERIZATION;
POLYMERS; SPECTROSCOPY; OXIDATION
AB Structural isomers of thermo-oxidatively stable poly(carborane-siloxane-arylacetylene) (PCSAA), namely, m-PCSAA and p-PCSAA, were synthesized by the reaction of the dimagnesium salts of m-diethynylbenzene or p-diethynylbenzene with 1,7-bis(chlorotetramethyldisiloxyl)-m-carborane. The developed polymers have exceptional thermo-oxidative properties similar to their diacetylene counterpart poly(carborane-siloxane-acetylene), PCSA. Thermal treatment of either of the PCSAAs results in a fully crosslinked thermoset by 500 degrees C resulting from the cycloaddition reactions involving the acetylene and aryl functionalities and subsequent formation of bridging disilylmethylene entities as discerned from Fourier transform infrared, 13C and 29Si solid-state NMR, and XPS studies. X-ray diffraction analysis revealed that the thermosets obtained from p-PCSAA possess enhanced crystallinity when compared to that obtained from m-PCSAA possibly due to more efficient packing interactions of the p-diethynylbenzene groups during thermoset formation. The presence of the aryl groups in the backbone of the PCSAAs' chains appeared to have enhanced the storage and bulk moduli of their thermosets when compared to the thermoset of PCSA. Dielectric studies of m-PCSAA and p-PCSAA revealed segmental relaxation peaks, , above their glass transition temperatures with p-PCSAA exhibiting a broader peak with a slower relaxation rate than m-PCSAA. (c) 2013 Wiley Periodicals, Inc.dagger J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 26382650
C1 [Kolel-Veetil, Manoj K.; Dominguez, Dawn D.; Klug, Christopher A.; Fears, Kenan P.; Fragiadakis, Daniel; Keller, Teddy M.] USN, Div Chem, Res Lab, Washington, DC 20375 USA.
[Qadri, Syed B.] USN, Mat Sci & Technol Div, Res Lab, Washington, DC 20375 USA.
RP Kolel-Veetil, MK (reprint author), USN, Div Chem, Res Lab, Washington, DC 20375 USA.
EM Manoj.kolel-veetil@nrl.navy.mil
RI Fragiadakis, Daniel/A-4510-2009
FU Office of Naval Research
FX The authors thank the Office of Naval Research for its financial support
of this work. They thank Peter Coneski of Chemistry Division, Naval
Research Laboratory, Washington, DC, for obtaining the GPC molecular
weight data on the polymers.
NR 50
TC 5
Z9 5
U1 6
U2 64
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0887-624X
J9 J POLYM SCI POL CHEM
JI J. Polym. Sci. Pol. Chem.
PD JUN 15
PY 2013
VL 51
IS 12
BP 2638
EP 2650
DI 10.1002/pola.26653
PG 13
WC Polymer Science
SC Polymer Science
GA 142OH
UT WOS:000318806300014
ER
PT J
AU Eliazar, II
Shlesinger, MF
AF Eliazar, Iddo I.
Shlesinger, Michael F.
TI Fractional motions
SO PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
LA English
DT Review
DE Brownian motion; Fractional Brownian motion; Levy motion; Fractional
Levy motion; Langevin's equation; Random walks; Scaling limits;
Universality; Noah exponent; Noah effect; Joseph exponent; Joseph
effect; Sub-diffusion; Super-diffusion; Short-range correlations;
Long-range correlations; Fractal trajectories; Selfsimilarity; Hurst
exponent
ID LONG-RANGE CORRELATIONS; TIME RANDOM-WALKS; EXTERNAL ELECTRICAL-FIELDS;
FRACTAL STREAM CHEMISTRY; SELF-SIMILAR PROCESSES; LEVY MOTION; ANOMALOUS
DIFFUSION; CONFORMATIONAL PROPERTIES; DIELECTRIC-RELAXATION; ENHANCED
DIFFUSION
AB Brownian motion is the archetypal model for random transport processes in science and engineering. Brownian motion displays neither wild fluctuations (the "Noah effect"), nor long-range correlations (the "Joseph effect"). The quintessential model for processes displaying the Noah effect is Levy motion, the quintessential model for processes displaying the Joseph effect is fractional Brownian motion, and the prototypical model for processes displaying both the Noah and Joseph effects is fractional Levy motion. In this paper we review these four random-motion models - henceforth termed "fractional motions" - via a unified physical setting that is based on Langevin's equation, the Einstein-Smoluchowski paradigm, and stochastic scaling limits. The unified setting explains the universal macroscopic emergence of fractional motions, and predicts according to microscopic-level details - which of the four fractional motions will emerge on the macroscopic level. The statistical properties of fractional motions are classified and parametrized by two exponents a "Noah exponent" governing their fluctuations, and a "Joseph exponent" governing their dispersions and correlations. This self-contained review provides a concise and cohesive introduction to fractional motions. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Eliazar, Iddo I.] Holon Inst Technol, IL-58102 Holon, Israel.
[Shlesinger, Michael F.] Off Naval Res, Arlington, VA 22203 USA.
RP Eliazar, II (reprint author), Holon Inst Technol, POB 305, IL-58102 Holon, Israel.
EM eliazar@post.tau.ac.il; mike.shlesinger@navy.mil
NR 197
TC 32
Z9 33
U1 3
U2 47
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-1573
EI 1873-6270
J9 PHYS REP
JI Phys. Rep.-Rev. Sec. Phys. Lett.
PD JUN 10
PY 2013
VL 527
IS 2
BP 101
EP 129
DI 10.1016/j.physrep.2013.01.004
PG 29
WC Physics, Multidisciplinary
SC Physics
GA 164SA
UT WOS:000320428600001
ER
PT J
AU Dominguez, A
Finke, JD
Prada, F
Primack, JR
Kitaura, FS
Siana, B
Paneque, D
AF Dominguez, A.
Finke, J. D.
Prada, F.
Primack, J. R.
Kitaura, F. S.
Siana, B.
Paneque, D.
TI DETECTION OF THE COSMIC gamma-RAY HORIZON FROM MULTIWAVELENGTH
OBSERVATIONS OF BLAZARS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE BL Lacertae objects: general; cosmology: observations; diffuse
radiation; galaxies: evolution; galaxies: formation
ID EXTRAGALACTIC BACKGROUND LIGHT; LARGE-AREA TELESCOPE; BL LACERTAE
OBJECTS; INTERGALACTIC MAGNETIC-FIELD; SPECTRAL ENERGY-DISTRIBUTION;
SED-TYPE FRACTIONS; TEV BLAZARS; NEXT-GENERATION; 3C 66A; COSMOLOGICAL
PARAMETERS
AB The first statistically significant detection of the cosmic gamma-ray horizon (CGRH) that is independent of any extragalactic background light (EBL) model is presented. The CGRH is a fundamental quantity in cosmology. It gives an estimate of the opacity of the universe to very high energy (VHE) gamma-ray photons due to photon-photon pair production with the EBL. The only estimations of the CGRH to date are predictions from EBL models and lower limits from gamma-ray observations of cosmological blazars and gamma-ray bursts. Here, we present homogeneous synchrotron/synchrotron self-Compton (SSC) models of the spectral energy distributions of 15 blazars based on (almost) simultaneous observations from radio up to the highest energy gamma-rays taken with the Fermi satellite. These synchrotron/SSC models predict the unattenuated VHE fluxes, which are compared with the observations by imaging atmospheric Cherenkov telescopes. This comparison provides an estimate of the optical depth of the EBL, which allows us a derivation of the CGRH through a maximum likelihood analysis that is EBL-model independent. We find that the observed CGRH is compatible with the current knowledge of the EBL.
C1 [Dominguez, A.; Siana, B.] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 USA.
[Finke, J. D.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Prada, F.] Campus Int Excellence UAM CSIC, E-28049 Madrid, Spain.
[Prada, F.] Univ Autonoma Madrid, UAM CSIC, Inst Fis Teor, E-28049 Madrid, Spain.
[Prada, F.] CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain.
[Primack, J. R.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA.
[Kitaura, F. S.] Leibniz Inst Astrophys AIP, D-14482 Potsdam, Germany.
[Paneque, D.] Stanford Univ, SLAC, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
[Paneque, D.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
RP Dominguez, A (reprint author), Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 USA.
EM albertod@ucr.edu
OI Dominguez, Alberto/0000-0002-3433-4610
FU Spanish MICINN's Consolider-Ingenio Programme [CSD2009-00064]; Fermi
Guest Investigator; NASA ATP [NNX07AGG4G, NSF-AST-1010033,
NSF-AST-0607712]; National Aeronautics and Space Administration;
Department of Energy in the United States; Commissariat a l'Energie
Atomique; Centre National de la Recherche Scientifique/Institut National
de Physique Nucleaire et de Physique des Particules in France; Agenzia
Spaziale Italiana; Istituto Nazionale di Fisica Nucleare in Italy;
Ministry of Education, Culture, Sports, Science and Technology (MEXT);
High Energy Accelerator Research Organization (KEK); Japan Aerospace
Exploration Agency (JAXA); K. A. Wallenberg Foundation; Swedish Research
Council; Swedish National Space Board in Sweden; Istituto Nazionale di
Astrofisica in Italy; Centre National d'Etudes Spatiales in France
FX The authors thank Marco Ajello, M. A. Sanchez-Conde,Seth Digel, and
David Williams for fruitful discussions. We thank Soebur Razzaque for
useful comments on the draft and the anonymous referee for improving the
manuscript. We acknowledge the support of the Spanish MICINN's
Consolider-Ingenio 2010 Programme under grant MultiDark CSD2009-00064.
J.R.P. acknowledges the support from a Fermi Guest Investigator grant
and also from the NASA ATP grants NNX07AGG4G, NSF-AST-1010033, and
NSF-AST-0607712.; The Fermi LAT Collaboration acknowledges generous
ongoing support from a number of agencies and institutes that have
supported both the development and the operation of the LAT as well as
scientific data analysis. These include the National Aeronautics and
Space Administration and the Department of Energy in the United States;
the Commissariat a l'Energie Atomique and the Centre National de la
Recherche Scientifique/Institut National de Physique Nucleaire et de
Physique des Particules in France; the Agenzia Spaziale Italiana and the
Istituto Nazionale di Fisica Nucleare in Italy; the Ministry of
Education, Culture, Sports, Science and Technology (MEXT), High Energy
Accelerator Research Organization (KEK) and Japan Aerospace Exploration
Agency (JAXA) in Japan; and the K. A. Wallenberg Foundation, the Swedish
Research Council and the Swedish National Space Board in Sweden.;
Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy and the Centre National d'Etudes Spatiales in France.
NR 95
TC 27
Z9 27
U1 0
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 10
PY 2013
VL 770
IS 1
AR 77
DI 10.1088/0004-637X/770/1/77
PG 15
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 158QD
UT WOS:000319986400077
ER
PT J
AU Laming, JM
Moses, JD
Ko, YK
Ng, CK
Rakowski, CE
Tylka, AJ
AF Laming, J. Martin
Moses, J. Daniel
Ko, Yuan-Kuen
Ng, Chee K.
Rakowski, Cara E.
Tylka, Allan J.
TI ON THE REMOTE DETECTION OF SUPRATHERMAL IONS IN THE SOLAR CORONA AND
THEIR ROLE AS SEEDS FOR SOLAR ENERGETIC PARTICLE PRODUCTION
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE acceleration of particles; shock waves; Sun: corona; Sun: coronal mass
ejections (CMEs)
ID NON-WKB MODELS; MAGNETIC RECONNECTION; SHOCK-WAVES; ELECTRON
ACCELERATION; STOCHASTIC ACCELERATION; PERPENDICULAR SHOCKS;
ASTROPHYSICAL SHOCKS; MASS EJECTIONS; OBLIQUE SHOCKS; CHARGE STATES
AB Forecasting large solar energetic particle (SEP) events associated with shocks driven by fast coronal mass ejections (CMEs) poses a major difficulty in the field of space weather. Besides issues associated with CME initiation, the SEP intensities are difficult to predict, spanning three orders of magnitude at any given CME speed. Many lines of indirect evidence point to the pre-existence of suprathermal seed particles for injection into the acceleration process as a key ingredient limiting the SEP intensity of a given event. This paper outlines the observational and theoretical basis for the inference that a suprathermal particle population is present prior to large SEP events, explores various scenarios for generating seed particles and their observational signatures, and explains how such suprathermals could be detected through measuring the wings of the H I Ly alpha line.
C1 [Laming, J. Martin; Moses, J. Daniel; Ko, Yuan-Kuen] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Ng, Chee K.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[Tylka, Allan J.] NASA, GSFC, Greenbelt, MD 20771 USA.
RP Laming, JM (reprint author), USN, Res Lab, Div Space Sci, Code 7684, Washington, DC 20375 USA.
RI Tylka, Allan/G-9592-2014
FU Office of Naval Research; NASA Astrophysics Data Analysis Program
[NNH10A009I]
FX This work was supported by basic research funds of the Office of Naval
Research. J.M.L. and C.E.R. also acknowledge support under grant
NNH10A009I from the NASA Astrophysics Data Analysis Program. We also
thank Ron Murphy for reading a draft of the paper and providing many
helpful comments.
NR 87
TC 12
Z9 12
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 JUN 10
PY 2013
VL 770
IS 1
AR 73
DI 10.1088/0004-637X/770/1/73
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 158QD
UT WOS:000319986400073
ER
PT J
AU Wang, YM
Sheeley, NR
Stenborg, G
AF Wang, Y. -M.
Sheeley, N. R., Jr.
Stenborg, G.
TI Fe XII STALKS AND THE ORIGIN OF THE AXIAL FIELD IN FILAMENT CHANNELS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE Sun: activity; Sun: chromosphere; Sun: filaments, prominences; Sun:
magnetic topology; Sun: surface magnetism; Sun: UV radiation
ID HEMISPHERIC HELICITY TREND; ELECTRIC-CURRENT HELICITY; SOLAR-CYCLE
VARIATION; MAGNETIC HELICITY; ACTIVE REGIONS; HYDROGEN VORTICES;
CHIRALITY; FLUX; PROMINENCES; PATTERNS
AB Employing Fe XII images and line-of-sight magnetograms, we deduce the direction of the axial field in high-latitude filament channels from the orientation of the adjacent stalklike structures. Throughout the rising phase of the current solar cycle 24, filament channels poleward of latitude 30 degrees overwhelmingly obeyed the hemispheric chirality rule, being dextral (sinistral) in the northern (southern) hemisphere, corresponding to negative (positive) helicity. During the deep minimum of 2007-2009, the orientation of the Fe XII stalks was often difficult to determine, but no obvious violations of the rule were found. Although the hemispheric trend was still present during the maximum and early declining phase of cycle 23 (2000-2003), several high-latitude exceptions were identified at that time. From the observation that dextral (sinistral) filament channels form through the decay of active regions whose Fe XII features show a counterclockwise (clockwise) whorl, we conclude that the axial field direction is determined by the intrinsic helicity of the active regions. In contrast, generation of the axial field component by the photospheric differential rotation is difficult to reconcile with the observed chirality of polar crown and circular filament channels, and with the presence of filament channels along the equator. The main role of differential rotation in filament channel formation is to expedite the cancellation of flux and thus the removal of the transverse field component. We propose further that, rather than being ejected into the heliosphere, the axial field is eventually resubmerged by flux cancellation as the adjacent unipolar regions become increasingly mixed.
C1 [Wang, Y. -M.; Sheeley, N. R., Jr.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Stenborg, G.] George Mason Univ, Fairfax, VA 22030 USA.
RP Wang, YM (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM yi.wang@nrl.navy.mil; neil.sheeley@nrl.navy.mil;
guillermo.stenborg.ctr.ar@nrl.navy.mil
FU NASA; Office of Naval Research
FX We are indebted to O. Panasenco, S. F. Martin, and M. Velli for the
original suggestion that the "coronal cells" described by Sheeley &
Warren (2012) could be used to deduce the chirality of filament
channels. This work was supported by NASA and the Office of Naval
Research.
NR 52
TC 5
Z9 5
U1 0
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 10
PY 2013
VL 770
IS 1
AR 72
DI 10.1088/0004-637X/770/1/72
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 158QD
UT WOS:000319986400072
ER
PT J
AU Bandyopadhyay, PR
Hansen, JC
AF Bandyopadhyay, Promode R.
Hansen, Joshua C.
TI Breakup and then makeup: a predictive model of how cilia self-regulate
hardness for posture control
SO SCIENTIFIC REPORTS
LA English
DT Article
ID ELASTIC PROPERTIES; CONTROL-SYSTEM; MOTOR CONTROL; DYNAMICS; PARAMECIUM;
POLARIZATION; DISORDERS; RESET; LIFT
AB Functioning as sensors and propulsors, cilia are evolutionarily conserved organelles having a highly organized internal structure. How a paramecium's cilium produces off-propulsion-plane curvature during its return stroke for symmetry breaking and drag reduction is not known. We explain these cilium deformations by developing a torsional pendulum model of beat frequency dependence on viscosity and an olivo-cerebellar model of self-regulation of posture control. The phase dependence of cilia torsion is determined, and a bio-physical model of hardness control with predictive features is offered. Crossbridge links between the central microtubule pair harden the cilium during the power stroke; this stroke's end is a critical phase during which ATP molecules soften the crossbridge-microtubule attachment at the cilium inflection point where torsion is at its maximum. A precipitous reduction in hardness ensues, signaling the start of ATP hydrolysis that re-hardens the cilium. The cilium attractor basin could be used as reference for perturbation sensing.
C1 [Bandyopadhyay, Promode R.; Hansen, Joshua C.] USN, Undersea Warfare Ctr, Autonomous & Defens Syst Dept, Newport, RI 02841 USA.
RP Bandyopadhyay, PR (reprint author), USN, Undersea Warfare Ctr, Autonomous & Defens Syst Dept, Newport, RI 02841 USA.
EM promode.bandyopadhya@navy.mil
FU Office of Naval Research, Biology-Inspired Autonomous Systems Program
[ONR 341]
FX Support of this research came from the Office of Naval Research,
Biology-Inspired Autonomous Systems Program (ONR 341) to PRB. Dr. Norman
Toplosky is thanked for early discussion and for the two-dimensional
hydrodynamics modeling in section SI.3. Dr. Aren M. Hellum is thanked
for assistance with the efficiency estimations and for the numerous
useful comments on the manuscript.
NR 48
TC 5
Z9 5
U1 2
U2 10
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2045-2322
J9 SCI REP-UK
JI Sci Rep
PD JUN 6
PY 2013
VL 3
AR 1956
DI 10.1038/srep01956
PG 10
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 158HO
UT WOS:000319960300009
PM 23739771
ER
PT J
AU Hires, SA
Efros, AL
Svoboda, K
AF Hires, S. Andrew
Efros, Alexander L.
Svoboda, Karel
TI Whisker Dynamics Underlying Tactile Exploration (Retracted article. See
vol. 33, pg. 14974, 2013)
SO JOURNAL OF NEUROSCIENCE
LA English
DT Article
ID RADIAL DISTANCE DETERMINATION; TRIGEMINAL GANGLION NEURONS; RAT
VIBRISSAL SYSTEM; OBJECT LOCALIZATION; BARREL CORTEX; MYSTACIAL
VIBRISSAE; RESPONSES; RESONANCE; FEATURES; DISCRIMINATION
AB Rodents explore the world by palpating objects with their whiskers. Whiskers interact with objects, causing stresses in whisker follicles and spikes in sensory neurons, which are interpreted by the brain to produce tactile perception. The mechanics of the whisker thus couple self-movement and the structure of the world to sensation. Whiskers are elastic thin rods; hence, they tend to vibrate. Whisker vibrations could be a key ingredient of rodent somatosensation. However, the specific conditions under which vibrations contribute appreciably to the stresses in the follicle remain unclear. We present an analytical solution for the deformation of individual whiskers in response to a time-varying force. We tracked the deformation of mouse whiskers during a pole localization task to extract the whisker Young's modulus and damping coefficient. We further extracted the time course and amplitude of steady-state forces during whisker-object contact. We use our model to calculate the relative contribution of steady-state and vibrational forces to stresses in the follicle in a variety of active sensation tasks and during the passive whisker stimuli typically used for sensory physiology. Vibrational stresses are relatively more prominent compared with steady-state forces for short contacts and for contacts close to the whisker tip. Vibrational stresses are large for texture discrimination, and under some conditions, object localization tasks. Vibrational stresses are negligible for typical ramp-and-hold stimuli. Our calculation provides a general framework, applicable to most experimental situations.
C1 [Hires, S. Andrew; Svoboda, Karel] Janelia Farm Res Campus, Howard Hughes Med Inst, Ashburn, VA 20147 USA.
[Efros, Alexander L.] USN, Ctr Computat Mat Sci, Res Lab, Washington, DC 20375 USA.
RP Hires, SA (reprint author), Janelia Farm Res Campus, Howard Hughes Med Inst, 19700 Helix Dr, Ashburn, VA 20147 USA.
EM hiresa@janelia.hhmi.org; efros@nrl.navy.mil
FU Howard Hughes Medical Institute; Office of Naval Research (ONR) through
the Naval Research Laboratory's Basic Research Program; APIG group of
Janelia Farm
FX This work was supported by the Howard Hughes Medical Institute. A.L.E
acknowledges support of the Office of Naval Research (ONR) through the
Naval Research Laboratory's Basic Research Program and thanks the APIG
group of Janelia Farm for hospitality and additional support. We thank
David Golomb for helpful discussions.
NR 53
TC 1
Z9 1
U1 3
U2 24
PU SOC NEUROSCIENCE
PI WASHINGTON
PA 11 DUPONT CIRCLE, NW, STE 500, WASHINGTON, DC 20036 USA
SN 0270-6474
J9 J NEUROSCI
JI J. Neurosci.
PD JUN 5
PY 2013
VL 33
IS 23
BP 9576
EP 9591
DI 10.1523/JNEUROSCI.5846-12.2013
PG 16
WC Neurosciences
SC Neurosciences & Neurology
GA 158IS
UT WOS:000319963300002
PM 23739955
ER
PT J
AU Sedegah, M
Kim, Y
Ganeshan, H
Huang, J
Belmonte, M
Abot, E
Banania, JG
Farooq, F
McGrath, S
Peters, B
Sette, A
Soisson, L
Diggs, C
Doolan, DL
Tamminga, C
Villasante, E
Hollingdale, MR
Richie, TL
AF Sedegah, Martha
Kim, Yohan
Ganeshan, Harini
Huang, Jun
Belmonte, Maria
Abot, Esteban
Banania, Jo Glenna
Farooq, Fouzia
McGrath, Shannon
Peters, Bjoern
Sette, Alessandro
Soisson, Lorraine
Diggs, Carter
Doolan, Denise L.
Tamminga, Cindy
Villasante, Eileen
Hollingdale, Michael R.
Richie, Thomas L.
TI Identification of minimal human MHC-restricted CD8+ T-cell epitopes
within the Plasmodium falciparum circumsporozoite protein (CSP)
SO MALARIA JOURNAL
LA English
DT Article
DE Malaria; Vaccine; Circumsporozoite protein; ELISpot; Flow cytometry;
NetMHC; Epitope mapping; Class I restriction; Localization
ID I ALLELE PROMISCUITY; MALARIA DNA VACCINE; PEPTIDE-BINDING; HLA-A;
SUPERTYPES; MOLECULES; RESPONSES; ANTIGENS; IMMUNOGENICITY; POLYMORPHISM
AB Background: Plasmodium falciparum circumsporozoite protein (CSP) is a leading malaria vaccine candidate antigen, known to elicit protective antibody responses in humans (RTS, S vaccine). Recently, a DNA prime/adenovirus (Ad) vector boost vaccine encoding CSP and a second P. falciparum antigen, apical membrane antigen-1, also elicited sterile protection, but in this case associated with interferon gamma ELISpot and CD8+ T cell but not antibody responses. The finding that CSP delivered by an appropriate vaccine platform likely elicits protective cell-mediated immunity provided a rationale for identifying class I-restricted epitopes within this leading vaccine candidate antigen.
Methods: Limited samples of peripheral blood mononuclear cells from clinical trials of the Ad vaccine were used to identify CD8+ T cell epitopes within pools of overlapping 15mer peptides spanning portions of CSP that stimulated recall responses. Computerized algorithms (NetMHC) predicted 17 minimal class I-restricted 9-10mer epitopes within fifteen 15mers positive in ELISpot assay using PBMC from 10 HLA-matched study subjects. Four additional epitopes were subsequently predicted using NetMHC, matched to other study subjects without initial 15mer ELISpot screening. Nine of the putative epitopes were synthesized and tested by ELISpot assay, and six of these nine were further tested for CD8+ T cell responses by ELISpot CD4+ and CD8+ T cell-depletion and flow cytometry assays for evidence of CD8+ T cell dependence.
Results: Each of the nine putative epitopes, all sequence-conserved, recalled responses from HLA-matched CSP-immunized research subjects. Four shorter sequences contained within these sequences were identified using NetMHC predictions and may have contributed to recall responses. Five (9-10mer) epitopes were confirmed to be targets of CD8+ T cell responses using ELISpot depletion and ICS assays. Two 9mers among these nine epitopes were each restricted by two HLA supertypes (A01/B07; A01A24/A24) and one 9mer was restricted by three HLA supertypes (A01A24/A24/B27) indicating that some CSP class I-restricted epitopes, like DR epitopes, may be HLA-promiscuous.
Conclusions: This study identified nine and confirmed five novel class I epitopes restricted by six HLA supertypes, suggesting that an adenovirus-vectored CSP vaccine would be immunogenic and potentially protective in genetically diverse populations.
C1 [Sedegah, Martha; Ganeshan, Harini; Huang, Jun; Belmonte, Maria; Abot, Esteban; Banania, Jo Glenna; Farooq, Fouzia; McGrath, Shannon; Tamminga, Cindy; Villasante, Eileen; Hollingdale, Michael R.; Richie, Thomas L.] USN, Med Res Ctr, Walter Reed Army Inst Res, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
[Kim, Yohan; Peters, Bjoern; Sette, Alessandro] La Jolla Inst Allergy & Immunol, La Jolla, CA USA.
[Doolan, Denise L.] Queensland Inst Med Res, Brisbane, Qld 4006, Australia.
[Soisson, Lorraine; Diggs, Carter] USAID, Washington, DC USA.
RP Sedegah, M (reprint author), USN, Med Res Ctr, Walter Reed Army Inst Res, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
EM martha.sedegah@med.navy.mil
RI Doolan, Denise/F-1969-2015;
OI Richie, Thomas/0000-0002-2946-5456
FU Naval Medical Research Center [6000.RAD1.F.A0309]; USAID; Military
Infectious Diseases Research Program; Congressionally Directed Medical
Research Program; Pfizer Australia
FX CT, EV, and TLR were active duty military personnel at the time they
contributed to this work; MS is a US Government employee. The work of
these individuals was prepared as part of official government duties.
Title 17 USC 105 provides that 'Copyright protection under this title is
not available for any work of the United States Government.' Title 17
USC 101 defines a US Government work as a work prepared by a military
service member or employee of the US Government as part of that person's
official duties. The work of authors affiliated with the Naval Medical
Research Center was supported by work unit number 6000.RAD1.F.A0309.
Major funding for this work was provided by USAID, the Military
Infectious Diseases Research Program, and the Congressionally Directed
Medical Research Program. DLD was supported by a Pfizer Australia Senior
Research Fellowship. The study protocol for the clinical trial presented
in this manuscript was approved by the National Naval Medical Center,
Naval Medical Research Center and Walter Reed Army Institute of Research
Institutional Review Boards, in compliance with all applicable federal
regulations governing protection of human subjects. All study subjects
gave written informed consent. The views expressed in this article are
those of the authors and do not necessarily reflect the official policy
or position of the Department of the Navy, the Department of the Army,
the Department of Defense, or the US Government. We gratefully
acknowledge the assistance of Jennifer Ng in the HLA typing of the
research subjects.
NR 62
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PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1475-2875
J9 MALARIA J
JI Malar. J.
PD JUN 5
PY 2013
VL 12
AR 185
DI 10.1186/1475-2875-12-185
PG 17
WC Infectious Diseases; Parasitology; Tropical Medicine
SC Infectious Diseases; Parasitology; Tropical Medicine
GA 163WH
UT WOS:000320367900001
PM 23738590
ER
PT J
AU Conroy, MW
Taylor, JC
Farley, JP
Fleming, JW
Ananth, R
AF Conroy, Michael W.
Taylor, Justin C.
Farley, John P.
Fleming, James W.
Ananth, Ramagopal
TI Liquid drainage from high-expansion (HiEx) aqueous foams during and
after filling of a container
SO COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
LA English
DT Article
DE Aqueous foam; Drainage; Dry foams; Moving boundary; Induction time
ID FIREFIGHTING FOAMS; MODEL; FLOW; DYNAMICS
AB An aqueous foam drains interstitial liquid as it fills a container after an induction period. We obtain solutions of quasi-steady and volume-averaged conservation equations containing the moving foam front to describe the induction period and the subsequent drainage, respectively. The quasi-steady theory predicts that the induction period increases with decreasing foam injection velocity. After the induction period, the theory shows a constant liquid drainage rate when the foam front propagates at a constant velocity. The space-averaged liquid fraction of the foam decreases with time and reaches a constant (pseudo-steady state) value because of the drainage. The theory shows that the liquid drainage is significant when the foam injection velocity is less than or equal to the terminal velocity of the liquid in a channel (Plateau border), which is shown to depend on foam parameters including initial liquid volume fraction and bubble diameter. At large injection velocity, the theory predicts induction time and drainage rate corresponding to free drainage from stationary foams. We also present experiments measuring liquid drained from dry foams (high-expansion foams), which are generated by forcing air through a liquid-covered metal screen at bench-scale. The experimental data show significant liquid drainage during filling in good agreement with the theoretical predictions for foams with liquid volume fraction less than 0.01. After the container is filled with the foam and the foam addition is stopped, both the theory and experiments show that the drainage rate decreases exponentially with time until equilibrium between capillarity and gravitational forces is reached and drainage ceases to occur. Thus, the theory shows striking differences in drainage behavior during and after filling in agreement with the experimental data. Published by Elsevier B.V.
C1 [Conroy, Michael W.; Taylor, Justin C.; Farley, John P.; Fleming, James W.; Ananth, Ramagopal] USN, Res Lab, Navy Technol Ctr Safety & Survivabil, Div Chem, Washington, DC 20375 USA.
RP Ananth, R (reprint author), USN, Res Lab, Navy Technol Ctr Safety & Survivabil, Div Chem, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM ramagopal.ananth@nrl.navy.mil
FU Office of Naval Research through the Naval Research Laboratory; National
Research Council Research Associateship Award at the Naval Research
Laboratory
FX This work was funded by the Office of Naval Research through the Naval
Research Laboratory. This research was performed while M.W. Conroy held
a National Research Council Research Associateship Award at the Naval
Research Laboratory. We thank DOD's High Performance Computing (HPC)
facilities for providing computer time. We also thank Drs. Ronald
Sheinson and Bradley Williams for discussions on drainage from aqueous
foams during this work.
NR 27
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U1 2
U2 19
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-7757
J9 COLLOID SURFACE A
JI Colloid Surf. A-Physicochem. Eng. Asp.
PD JUN 5
PY 2013
VL 426
BP 70
EP 97
DI 10.1016/j.colsurfa.2013.02.050
PG 28
WC Chemistry, Physical
SC Chemistry
GA 135XJ
UT WOS:000318323700011
ER
PT J
AU Meeker, MA
Magill, BA
Merritt, TR
Bhowmick, M
McCutcheon, K
Khodaparast, GA
Tischler, JG
McGill, S
Choi, SG
Palmstrom, CJ
AF Meeker, M. A.
Magill, B. A.
Merritt, T. R.
Bhowmick, M.
McCutcheon, K.
Khodaparast, G. A.
Tischler, J. G.
McGill, S.
Choi, S. G.
Palmstrom, C. J.
TI Dynamics of photoexcited carriers and spins in InAsP ternary alloys
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID RELAXATION
AB The recent rapid progress in the field of spintronics involves extensive measurements of carrier and spin relaxation dynamics in III-V semiconductors. In addition, as the switching rates in devices are pushed to higher frequencies, it is important to understand carrier dynamic phenomena in semiconductors on femtosecond time-scales. In this work, we employed time and spin resolved differential transmission measurements; to probe carrier and spin relaxation times in several InAsP ternary alloys. Our results demonstrate the sensitivity of the spin and carrier dynamics in this material system to the excitation wavelengths, the As concentrations, and temperature. (C) 2013 AIP Publishing LLC.
C1 [Meeker, M. A.; Magill, B. A.; Merritt, T. R.; Bhowmick, M.; McCutcheon, K.; Khodaparast, G. A.] Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA.
[Tischler, J. G.] Naval Res Lab, Washington, DC 20375 USA.
[McGill, S.] Natl High Magnet Field Lab Florida, Tallahassee, FL 32310 USA.
[Choi, S. G.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Palmstrom, C. J.] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA.
RP Khodaparast, GA (reprint author), Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA.
EM khoda@vt.edu
RI Bhowmick, Mithun/B-5599-2014; Choi, Sukgeun/J-2345-2014
FU NSF-Career Award [DMR-0846834]; National High Magnetic Field Laboratory
through a UCGP; Institute of Critical Technology and Applied Sciences
(ICTAS) at Virginia Tech
FX This work was supported by NSF-Career Award No. DMR-0846834 and by the
National High Magnetic Field Laboratory through a UCGP. G. A.
Khodaparast thanks the inputs from Professor Tigran Shahbazyan and the
funding from the Institute of Critical Technology and Applied Sciences
(ICTAS) at Virginia Tech. The samples studied in this work were grown
and characterized as part of S. G. Choi's Ph.D. work at the University
of Minnesota.
NR 15
TC 4
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U1 0
U2 16
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 3
PY 2013
VL 102
IS 22
AR 222102
DI 10.1063/1.4808346
PG 5
WC Physics, Applied
SC Physics
GA 167HH
UT WOS:000320621600035
ER
PT J
AU Hindsley, R
Armstrong, JT
Schmitt, H
Baines, E
AF Hindsley, Robert
Armstrong, John Thomas
Schmitt, Henrique
Baines, Ellyn
TI Small glints as an aid for imaging geosats using an optical Michelson
interferometer
SO JOURNAL OF APPLIED REMOTE SENSING
LA English
DT Article
DE interferometry; satellites; image analysis; spectrophotometry; remote
sensing
AB A Michelson optical interferometer, such as an upgraded version of the Navy Precision Optical Interferometer, could image geosynchronous satellites (geosats) with resolution of roughly 1 m. Baselines that sample features as small as 0.2 m can be built, however, the fringes would be swamped by the resolved component. Recent observations have shown that small glints known as "glintchen," aside from being a nuisance, serve to isolate and highlight the signal from these structures. Imaging of geosats during glintchen events can determine the dimensions of these structures and can also play a critical role in determining if these glintchen are due to a previously undetected companion satellite. An approach for performing this glint-aided imaging of geosats and the wealth of detail it would yield, is discussed. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
C1 [Hindsley, Robert; Armstrong, John Thomas; Schmitt, Henrique; Baines, Ellyn] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Hindsley, R (reprint author), USN, Res Lab, Remote Sensing Div, Code 7215,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM hindsley@nrl.navy.mil
FU Office of Naval Research; Oceanographer of the Navy
FX The NPOI is a joint project of the Naval Research Laboratory and the U.
S. Naval Observatory, in co-operation with Lowell Observatory, and is
funded by the Office of Naval Research and the Oceanographer of the
Navy.
NR 18
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U1 0
U2 4
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 1931-3195
J9 J APPL REMOTE SENS
JI J. Appl. Remote Sens.
PD JUN 3
PY 2013
VL 7
AR 073549
DI 10.1117/1.JRS.7.073549
PG 13
WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic
Technology
SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science &
Photographic Technology
GA 156CG
UT WOS:000319797400001
ER
PT J
AU Alves, F
Grbovic, D
Kearney, B
Lavrik, NV
Karunasiri, G
AF Alves, Fabio
Grbovic, Dragoslav
Kearney, Brian
Lavrik, Nickolay V.
Karunasiri, Gamani
TI Bi-material terahertz sensors using metamaterial structures
SO OPTICS EXPRESS
LA English
DT Article
ID QUANTUM CASCADE LASER; ABSORBER; TRANSMISSION; SENSITIVITY; PERFORMANCE;
DETECTORS; DESIGN; CAMERA; MODEL; BAND
AB In this paper we report on the design, fabrication and characterization of terahertz (THz) bi-material sensors with metamaterial absorbers. MEMS fabrication-friendly SiOx and Al are used to maximize the bimetallic effect and metamaterial absorption at 3.8 THz, the frequency of a quantum cascade laser illumination source. Sensors with different configurations were fabricated and the measured absorption is near 100% and responsivity is around 1.2 deg/mu W, which agree well with finite element simulations. The results indicate the potential of using these detectors to fabricate focal plane arrays for real time THz imaging. (C) 2013 Optical Society of America
C1 [Alves, Fabio; Grbovic, Dragoslav; Kearney, Brian; Karunasiri, Gamani] USN, Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
[Lavrik, Nickolay V.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Alves, F (reprint author), USN, Postgrad Sch, Dept Phys, 833 Dyer Rd, Monterey, CA 93943 USA.
EM fdalves@nps.edu
RI Lavrik, Nickolay/B-5268-2011
OI Lavrik, Nickolay/0000-0002-9543-5634
FU ONR; NRO; Scientific User Facilities Division, Office of Basic Energy
Sciences, U. S. Department of Energy
FX This work is supported in part by grants from the ONR and NRO. The
authors would like to thank John Dunec, Emmanuel Dupont, Elison
Montagner, Mun Wai Raymond and Sam Barone for technical assistance. A
portion of this research was conducted at the Center for Nanophase
Materials Sciences, which is sponsored at Oak Ridge National Laboratory
by the Scientific User Facilities Division, Office of Basic Energy
Sciences, U. S. Department of Energy.
NR 44
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U1 4
U2 91
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1094-4087
J9 OPT EXPRESS
JI Opt. Express
PD JUN 3
PY 2013
VL 21
IS 11
BP 13256
EP 13271
DI 10.1364/OE.21.013256
PG 16
WC Optics
SC Optics
GA 156II
UT WOS:000319814900030
PM 23736579
ER
PT J
AU Lowen, A
Schmitt, P
AF Lowen, Aaron
Schmitt, Pamela
TI Cooperation limitations under a one-time threat of expulsion and
punishment
SO JOURNAL OF SOCIO-ECONOMICS
LA English
DT Article
DE Public goods; Collective decision-making; Expulsion; Punishment; Voting
behavior
ID PUBLIC-GOODS EXPERIMENTS; GOOD GAMES; CONDITIONAL COOPERATION; VOLUNTARY
CONTRIBUTIONS; BEHAVIOR; PROVISION; MECHANISM; IDENTITY
AB We examine the impact of one-time threats of expulsion and punishment on voluntary contributions in a public goods game. Participants played in 15-round sessions where they were allowed to vote to remove other subjects only after round 5 and in one design also voted whether to punish the remaining subjects after round 10. Consistent with the literature, we find that an additional threat of punishment increases the contributions of participants before the punishment vote. The literature shows that frequent threats of expulsion may increase efficiency in the provision of public goods. In realistic settings, however, opportunities for expulsion are limited whereas threats of non-expulsive punishments are common. We find the threat of costly punishment increases contributions with little impact on efficiency (57.1% versus 58.1%), and that standards for inclusion rise when later punishment is available. (C) 2013 Elsevier Inc. All rights reserved.
C1 [Lowen, Aaron] Grand Valley State Univ, Dept Econ, Grand Rapids, MI 49504 USA.
[Schmitt, Pamela] US Naval Acad, Dept Econ, Annapolis, MD 21402 USA.
RP Lowen, A (reprint author), Grand Valley State Univ, Dept Econ, 401 West Fulton St, Grand Rapids, MI 49504 USA.
EM Lowena@gvsu.edu; pschmitt@usna.edu
NR 38
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U1 2
U2 9
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1053-5357
J9 J SOCIO-ECON
JI J. Socio-Econ.
PD JUN
PY 2013
VL 44
BP 68
EP 74
DI 10.1016/j.socec.2013.02.017
PG 7
WC Economics
SC Business & Economics
GA AD2JL
UT WOS:000333061500009
ER
PT J
AU Nicosia, N
MacDonald, JM
Arkes, J
AF Nicosia, Nancy
MacDonald, John M.
Arkes, Jeremy
TI Disparities in Criminal Court Referrals to Drug Treatment and Prison for
Minority Men
SO AMERICAN JOURNAL OF PUBLIC HEALTH
LA English
DT Article
ID RACIAL DISPROPORTIONALITY; ARREST RATES
AB Objectives. We investigated the extent to which racial/ethnic disparities in prison and diversion to drug treatment were explained by current arrest and criminal history characteristics among drug-involved offenders, and whether those disparities decreased after California's Proposition 36, which mandated first-and second-time nonviolent drug offenders drug treatment instead of prison.
Methods. We analyzed administrative data on approximately 170 000 drug-involved arrests in California between 1995 and 2005. We examined odds ratios from logistic regressions for prison and diversion across racial/ethnic groups before and after Proposition 36.
Results. We found significant disparities in prison and diversion for Blacks and Hispanics relative to Whites. These disparities decreased after controlling for current arrest and criminal history characteristics for Blacks. Proposition 36 was also associated with a reduction in disparities, but more so for Hispanics than Blacks.
Conclusions. Disparities in prison and diversion to drug treatment among drug-involved offenders affect hundreds of thousands of citizens and might reinforce imbalances in criminal justice and health outcomes. Our study indicated that standardized criminal justice policies that improved access to drug treatment might contribute to alleviating some share of these disparities.
C1 [Nicosia, Nancy] RAND Corp, Boston, MA USA.
[MacDonald, John M.] Univ Penn, Dept Criminol, Philadelphia, PA 19104 USA.
[Arkes, Jeremy] Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA USA.
RP Nicosia, N (reprint author), 20 Pk Plaza,Suite 720, Boston, MA 02116 USA.
EM nicosia@rand.org
FU National Institute on Drug Abuse [R01-DA-022179]
FX This work was supported by the National Institute on Drug Abuse (grant
R01-DA-022179). We thank the anonymous reviewers and Associate Editor
for the constructive comments they provided.
NR 20
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U1 6
U2 15
PU AMER PUBLIC HEALTH ASSOC INC
PI WASHINGTON
PA 800 I STREET, NW, WASHINGTON, DC 20001-3710 USA
SN 0090-0036
EI 1541-0048
J9 AM J PUBLIC HEALTH
JI Am. J. Public Health
PD JUN
PY 2013
VL 103
IS 6
BP E77
EP E84
DI 10.2105/AJPH.2013.301222
PG 8
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA AA3FI
UT WOS:000330977900017
PM 23597342
ER
PT J
AU Mabry, TJ
AF Mabry, Tristan James
TI The Origins of Nationalism: An Alternative History From Ancient Rome to
Early Modern Germany
SO COMPARATIVE POLITICAL STUDIES
LA English
DT Book Review
C1 [Mabry, Tristan James] Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Mabry, TJ (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA.
NR 8
TC 0
Z9 0
U1 0
U2 1
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0010-4140
EI 1552-3829
J9 COMP POLIT STUD
JI Comp. Polit. Stud.
PD JUN
PY 2013
VL 46
IS 6
BP 757
EP 760
DI 10.1177/0010414013479101
PG 4
WC Political Science
SC Government & Law
GA AA2NK
UT WOS:000330931100004
ER
PT J
AU Wirtz, JJ
AF Wirtz, James J.
TI The Coder Special Archive: The Untold Story of Navy National Servicemen
Learning and Using Russian during the Cold War
SO JOURNAL OF COLD WAR STUDIES
LA English
DT Book Review
C1 [Wirtz, James J.] US Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Wirtz, JJ (reprint author), US Naval Postgrad Sch, Monterey, CA 93943 USA.
NR 1
TC 0
Z9 0
U1 0
U2 2
PU MIT PRESS
PI CAMBRIDGE
PA 55 HAYWARD STREET, CAMBRIDGE, MA 02142 USA
SN 1520-3972
EI 1531-3298
J9 J COLD WAR STUD
JI J. Cold War Stud.
PD SUM
PY 2013
VL 15
IS 3
BP 189
EP 190
PG 2
WC History; International Relations; Political Science
SC History; International Relations; Government & Law
GA 301JE
UT WOS:000330527800013
ER
PT J
AU Rodriguez-Soto, AE
Jaworski, R
Jensen, A
Niederberger, B
Hargens, AR
Frank, LR
Kelly, KR
Ward, SR
AF Rodriguez-Soto, Ana E.
Jaworski, Rebecca
Jensen, Andrew
Niederberger, Brenda
Hargens, Alan R.
Frank, Lawrence R.
Kelly, Karen R.
Ward, Samuel R.
TI Effect of Load Carriage on Lumbar Spine Kinematics
SO SPINE
LA English
DT Article
DE low back pain; backpack; military; load carriage; MRI; upright MRI;
lumbar spine kinematics
ID LOW-BACK-PAIN; IN-VIVO; MEDICAL ASPECTS; AXIAL LOAD; CURVATURE; POSTURE;
SCOLIOSIS; DIAGNOSIS; RESPONSES; ROTATION
AB Study Design. Feasibility study on the acquisition of lumbar spine kinematic data from upright magnetic resonance images obtained under heavy load carrying conditions.
Objective. To characterize the effect of the load on spinal kinematics of active Marines under typical load carrying conditions from a macroscopic and lumbar-level approach in active-duty US Marines.
Summary of Background Data. Military personnel carry heavy loads of up to 68 kg depending on duty position and nature of the mission or training; these loads are in excess of the recommended assault loads. Performance and injury associated with load carriage have been studied; however, knowledge of lumbar spine kinematic changes is still not incorporated into training. These data would provide guidance for setting load and duration limits and a tool to investigate the potential contribution of heavy load carrying on lumbar spine pathologies.
Methods. Sagittal T-2 magnetic resonance images of the lumbar spine were acquired on a 0.6-T upright magnetic resonance imaging scanner for 10 active-duty Marines. Each Marine was scanned without load (UN1), immediately after donning load (LO2), after 45 minutes of standing (LO3) and walking (LO4) with load, and after 45 minutes of side-lying recovery (UN5). Custom-made software was used to measure whole spine angles, intervertebral angles, and regional disc heights (L1-S1). Repeated measurements analysis of variance and post hoc Sidak tests were used to identify significant differences between tasks (alpha = 0.05).
Results. The position of the spine was significantly (P < 0.0001) more horizontal relative to the external reference frame and lordosis was reduced during all tasks with load. Superior levels became more lordotic, whereas inferior levels became more kyphotic. Heavy load induced lumbar spine flexion and only anterior disc and posterior intervertebral disc height changes were observed. All kinematic variables returned to baseline levels after 45 minutes of side-lying recovery.
Conclusion. Superior and inferior lumbar levels showed different kinematic behaviors under heavy load carrying conditions. These findings suggest a postural, lumbar flexion strategy aimed at centralizing a heavy posterior load over the base of support.
C1 [Rodriguez-Soto, Ana E.; Frank, Lawrence R.; Ward, Samuel R.] Univ Calif San Diego, Dept Bioengn, La Jolla, CA 92093 USA.
[Ward, Samuel R.] Univ Calif San Diego, Dept Radiol, La Jolla, CA 92093 USA.
[Hargens, Alan R.; Ward, Samuel R.] Univ Calif San Diego, Dept Orthopaed Surg, La Jolla, CA 92093 USA.
[Frank, Lawrence R.] Vet Adm Med Ctr, San Diego, CA 92161 USA.
[Jaworski, Rebecca; Jensen, Andrew; Niederberger, Brenda; Kelly, Karen R.] Naval Hlth Res Ctr, Dept Warfighter Performance, San Diego, CA USA.
[Jensen, Andrew; Kelly, Karen R.] San Diego State Univ, Dept Exercise & Nutr Sci, San Diego, CA 92182 USA.
[Jaworski, Rebecca] Marine Corp Syst Command, Marine Expeditionary Rifl Squad, Quantico, VA USA.
RP Ward, SR (reprint author), Dept Radiol Orthopaed Surg & Bioengn, 9500 Gilman Dr 0610, La Jolla, CA 92093 USA.
EM srward@ucsd.edu
OI Hargens, Alan/0000-0002-4722-1375
FU Bureau of Medicine and Surgery-Wounded III and Injured program
[BUMED-WII42, WU61016, US ARMY RDECOM N6311610MP00182]
FX Bureau of Medicine and Surgery-Wounded III and Injured program
(BUMED-WII42, WU61016, US ARMY RDECOM N6311610MP00182) funds were
received to support this work.
NR 41
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U1 0
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PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0362-2436
EI 1528-1159
J9 SPINE
JI SPINE
PD JUN 1
PY 2013
VL 38
IS 13
BP E783
EP E791
DI 10.1097/BRS.0b013e3182913e9f
PG 9
WC Clinical Neurology; Orthopedics
SC Neurosciences & Neurology; Orthopedics
GA 298WJ
UT WOS:000330354900003
PM 23524870
ER
PT J
AU Johnson, T
Gordon, J
AF Johnson, T.
Gordon, J.
TI Retrospective Review of Efficacy and Safety of Acupuncture for Treatment
of Active Duty Service Members with Headaches after Non-Penetrating
Blast Exposure
SO CEPHALALGIA
LA English
DT Meeting Abstract
CT International Headache Congress of the International-Headache-Society
and American-Headache-Society
CY JUN 27-30, 2013
CL Boston, MA
SP Int Headache Soc, Amer Headache Soc
C1 [Johnson, T.] Naval Hosp, Marine & Sailor Concuss Recovery Ctr, Camp Lejeune, NC USA.
[Gordon, J.] Naval Hosp, Camp Lejeune, NC USA.
NR 0
TC 0
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PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0333-1024
EI 1468-2982
J9 CEPHALALGIA
JI Cephalalgia
PD JUN
PY 2013
VL 33
IS S8
SU 8
BP 246
EP 247
PG 2
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA 287LS
UT WOS:000329543900389
ER
PT J
AU Michael, JB
AF Michael, James Bret
TI Empowering Users through Secure On-Demand Data Provisioning
SO COMPUTER
LA English
DT Editorial Material
AB A virtualized on-demand infrastructure coupled with multidimensional encryption lets users retain control over their stored data and securely access it from anywhere.
C1 [Michael, James Bret] USN, Postgrad Sch, Dept Comp Sci, Monterey, CA 93943 USA.
[Michael, James Bret] USN, Postgrad Sch, Elect & Comp Engn Dept, Monterey, CA USA.
RP Michael, JB (reprint author), USN, Postgrad Sch, Dept Comp Sci, Monterey, CA 93943 USA.
NR 0
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 0018-9162
EI 1558-0814
J9 COMPUTER
JI Computer
PD JUN
PY 2013
VL 46
IS 6
BP 84
EP 85
PG 2
WC Computer Science, Hardware & Architecture; Computer Science, Software
Engineering
SC Computer Science
GA 161KA
UT WOS:000320190500023
ER
PT J
AU Zhang, W
Xu, YL
Liu, WX
Ferrese, F
Liu, LM
AF Zhang, Wei
Xu, Yinliang
Liu, Wenxin
Ferrese, Frank
Liu, Liming
TI Fully Distributed Coordination of Multiple DFIGs in a Microgrid for Load
Sharing
SO IEEE TRANSACTIONS ON SMART GRID
LA English
DT Article
DE Cooperative systems; distributed control; microgrid; wind power
generation
ID GENERATION CONTROL; RESTORATION; ALGORITHM
AB When wind power penetration is high, the available generation may be more than needed, especially for wind-powered microgrids working autonomously. Because the maximum peak power tracking algorithm may result in a supply-demand imbalance, an alternative algorithm is needed for load sharing. In this paper, a fully distributed control scheme is presented to coordinate the operations of multiple doubly-fed induction generators (DFIGs) in a microgrid. According to the proposed control strategy, each bus in a microgrid has an associated bus agent that may have two function modules. The global information discovery module discovers the total available wind generation and total demand. The load sharing control module calculates the generation reference of a DFIG. The consensus-based algorithm can guarantee convergence for microgrids of arbitrary topologies under various operating conditions. By controlling the utilization levels of DFIGs to a common value, the supply-demand balance can be maintained. In addition, the detrimental impact of inaccurate and outdated predictions of maximum wind power can be alleviated. The generated control references are tracked by coordinating converter controls and pitch angle control. Simulation results with a 5-DFIG microgrid demonstrate the effectiveness of the proposed control scheme.
C1 [Zhang, Wei; Xu, Yinliang; Liu, Wenxin] New Mexico State Univ, Klipsch Sch Elect & Comp Engn, Las Cruces, NM 88003 USA.
[Ferrese, Frank] Naval Surface Warfare Ctr, Carderock Div, Philadelphia, PA 19112 USA.
[Liu, Liming] Florida State Univ, Ctr Adv Power Syst, Tallahassee, FL 32310 USA.
RP Zhang, W (reprint author), New Mexico State Univ, Klipsch Sch Elect & Comp Engn, Las Cruces, NM 88003 USA.
EM wzhang@nmsu.edu; danielxu@nmsu.edu; wliu@nmsu.edu;
frank.ferrese@navy.mil; liming@caps.fsu.edu
FU U.S. National Science Foundation under Grant ECCS [1125776]
FX Manuscript received December 12, 2011; revised May 31, 2012; accepted
December 05, 2012. Date of publication March 11, 2013; date of current
version May 18, 2013. This work was supported by the U.S. National
Science Foundation under Grant ECCS #1125776. Paper no. TSG-00684-2011.
NR 25
TC 13
Z9 14
U1 0
U2 3
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1949-3053
J9 IEEE T SMART GRID
JI IEEE Trans. Smart Grid
PD JUN
PY 2013
VL 4
IS 2
BP 806
EP 815
DI 10.1109/TSG.2012.2234149
PG 10
WC Engineering, Electrical & Electronic
SC Engineering
GA 232IU
UT WOS:000325487800018
ER
PT J
AU Christensen, AB
Bishop, RL
Budzien, SA
Hecht, JH
Mlynczak, MG
Russell, JM
Stephan, AW
Walterscheid, RW
AF Christensen, A. B.
Bishop, R. L.
Budzien, S. A.
Hecht, J. H.
Mlynczak, M. G.
Russell, J. M., III
Stephan, A. W.
Walterscheid, R. W.
TI Altitude profiles of lower thermospheric temperature from RAIDS/NIRS and
TIMED/SABER remote sensing experiments
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
DE Thermosphere; Temperature
ID KINETIC TEMPERATURE; SABER EXPERIMENT; BAND SYSTEM; ATMOSPHERE;
EMISSIONS; DAYGLOW; MIDDLE; SPHERE
AB Thermospheric temperatures derived from limb observations of the O-2 A-Band (0,0) emission spectrum obtained from January-July 2010, with the Remote Atmospheric and Ionospheric Detection System (RAIDS) Near Infrared Spectrometer (NIRS) aboard the International Space Station, are compared to temperature results from the Thermosphere Ionosphere Mesosphere Energetics and Dynamics/Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) experiment. To account for a lack of simultaneous common volume observations, the observed temperatures were scaled by the NRLMSIS-00 model temperatures for comparison. It was found that on average SABER, temperatures are warmer than NIRS at all altitudes between 90 and 140km. In the altitude range 90-100km, the SABER temperatures were warmer than NIRS by similar to 10K consistent with previous validation experiments and in agreement with Optical Spectrograph and Infrared Imaging System (OSIRIS) O-2 A-band comparisons in the polar mesopause region. At higher altitudes, the differences between SABER and NIRS exceed 30K on average. Thus, the NIRS observations reinforce the idea that the SABER temperatures are too warm below similar to 110km; and above that altitude, they are increasingly in error consistent with expectations based on estimated inaccuracies in the retrieval algorithm. Large standard deviations of the SABER and NIRS ratios are reflective of substantial variability of the thermospheric temperatures throughout the region.
C1 [Christensen, A. B.] Dixie State Univ, St George, UT 84770 USA.
[Bishop, R. L.; Hecht, J. H.; Walterscheid, R. W.] Aerosp Corp, Los Angeles, CA 90009 USA.
[Budzien, S. A.; Stephan, A. W.] Naval Res Lab, Washington, DC USA.
[Mlynczak, M. G.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Russell, J. M., III] Hampton Univ, Sch Sci, Hampton, VA 23668 USA.
RP Christensen, AB (reprint author), Dixie State Univ, 225 South 700 East, St George, UT 84770 USA.
EM andrew.christensen@aero.org
FU Office of Naval Research; Aerospace Corporation Independent Research and
Development Program; Aerospace Corporation's Sustained Experimentation
and Research for Program Applications; NRL [76-9880]; NASA [NNX11AD71G]
FX RAIDS is part of the HICO-RAIDS Experiment Payload (HREP), integrated
and flown under the direction of the DOD Space Test Program. RAIDS is a
joint project of the Naval Research Laboratory and the Aerospace
Corporation, with support from the Office of Naval Research and the
Aerospace Corporation Independent Research and Development Program and
the Aerospace Corporation's Sustained Experimentation and Research for
Program Applications. Scott A. Budzien and Andrew W. Stephan were
supported by NRL Base Program work unit 76-9880. We would like to
acknowledge the programming support from Dixie College Students Nefi
Oliva, Stuart Landsee, Landon Terry, Chris Palmer, and Tucker Fife. This
work was supported by NASA grant NNX11AD71G to the Aerospace Corporation
and subcontracted to Dixie State College. Thanks also go to Chris
Mertens from NASA Langley and the SABER data processing team at GATS,
Inc. for providing SABER data.
NR 32
TC 7
Z9 7
U1 2
U2 13
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9380
EI 2169-9402
J9 J GEOPHYS RES-SPACE
JI J. Geophys. Res-Space Phys.
PD JUN
PY 2013
VL 118
IS 6
BP 3740
EP 3746
DI 10.1002/jgra.50317
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 228UQ
UT WOS:000325217100092
ER
PT J
AU Briggs, MS
Xiong, SL
Connaughton, V
Tierney, D
Fitzpatrick, G
Foley, S
Grove, JE
Chekhtman, A
Gibby, M
Fishman, GJ
McBreen, S
Chaplin, VL
Guiriec, S
Layden, E
Bhat, PN
Hughes, M
Greiner, J
von Kienlin, A
Kippen, RM
Meegan, CA
Paciesas, WS
Preece, RD
Wilson-Hodge, C
Holzworth, RH
Hutchins, ML
AF Briggs, Michael S.
Xiong, Shaolin
Connaughton, Valerie
Tierney, Dave
Fitzpatrick, Gerard
Foley, Suzanne
Grove, J. Eric
Chekhtman, Alexandre
Gibby, Melissa
Fishman, Gerald J.
McBreen, Shelia
Chaplin, Vandiver L.
Guiriec, Sylvain
Layden, Emily
Bhat, P. N.
Hughes, Maximilian
Greiner, Jochen
von Kienlin, Andreas
Kippen, R. Marc
Meegan, Charles A.
Paciesas, William S.
Preece, Robert D.
Wilson-Hodge, Colleen
Holzworth, Robert H.
Hutchins, Michael L.
TI Terrestrial gamma-ray flashes in the Fermi era: Improved observations
and analysis methods
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
DE TGFs; terrestrial gamma-ray flashes; lightning; gamma-ray; Fermi GBM;
WWLLN
ID OPTICAL TRANSIENT DETECTOR; LIGHTNING LOCATION; BURST; SPACE; AIR
AB A new data mode and new analysis methods are used to detect Terrestrial Gamma-ray Flashes (TGFs) with the Fermi Gamma-ray Burst Monitor (GBM) 10 times more frequently than previously. In 1037h of observations at times and over regions for which TGFs are expected, 384 new TGFs were found in addition to the 39 TGFs and two Terrestrial Electron Beam events already detected without the new data mode and methodology. Cosmic ray showers were found to be an important background; they show characteristic signatures in the data of both GBM and the Fermi Large Area Telescope Calorimeter that enable their removal, leaving a sample estimated to consist of approximate to 98% TGFs. The sample includes shorter TGFs than previously found with GBM. The true duration distribution likely contains additional short TGFs because their detection by GBM is limited by detector dead time. One-third of this sample has matches with locations from the World Wide Lightning Location Network (WWLLN)maps of these locations show the geographic and meteorological features more clearly than maps of spacecraft locations. The intrinsic TGF rate is evaluated using the lightning rate maps of the Lightning Imaging Sensor, accounting for the detection efficiency of GBM as a function of spacecraft-source offset, from which we estimate a global TGF rate of approximate to 400,000 per year. With continuous production of data in the new mode we estimate that GBM will detect approximate to 850 TGFs per year.
C1 [Briggs, Michael S.; Xiong, Shaolin; Connaughton, Valerie; Chaplin, Vandiver L.; Guiriec, Sylvain; Layden, Emily; Bhat, P. N.; Preece, Robert D.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Briggs, Michael S.; Connaughton, Valerie] Univ Alabama, Dept Phys, Huntsville, AL 35899 USA.
[Tierney, Dave; Fitzpatrick, Gerard; Foley, Suzanne; McBreen, Shelia] Univ Coll Dublin, Sch Phys, Dublin 2, Ireland.
[Grove, J. Eric] US Naval Res Lab, Space Sci Div, Washington, DC 20375 USA.
[Chekhtman, Alexandre] George Mason Univ, Sch Phys, Fairfax, VA 22030 USA.
[Gibby, Melissa] Jacobs Engn Grp Inc, Huntsville, VA USA.
[Fishman, Gerald J.; Wilson-Hodge, Colleen] NASA, George C Marshall Space Flight Ctr, Space Sci Off, Huntsville, AL 35812 USA.
[Greiner, Jochen] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Hughes, Maximilian] Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA.
[Greiner, Jochen; von Kienlin, Andreas] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Kippen, R. Marc] Los Alamos Natl Lab, ISR 1, Los Alamos, NM USA.
[Meegan, Charles A.; Paciesas, William S.] NASA, George C Marshall Space Flight Ctr, Univ Space Res Assoc, Huntsville, AL 35812 USA.
[Holzworth, Robert H.; Hutchins, Michael L.] Univ Washington, Seattle, WA 98195 USA.
RP Briggs, MS (reprint author), CSPAR, 320 Sparkman Dr, Huntsville, AL 35805 USA.
EM michael.briggs@uah.edu
OI Preece, Robert/0000-0003-1626-7335
FU Fermi Guest Investigator Program; Irish Research Council for Science,
Engineering and Technology; Marie Curie Actions under FP7; Science
Foundation Ireland [09-RFP-AST-2400]
FX We thank Richard Blakeslee, Garry Case, Martino Marisaldi, David Smith,
Steven Cummer and Michael Splitt for discussions or assistance. The
Fermi GBM Collaboration acknowledges support for GBM development,
operations, and data analysis from National Aeronautics and Space
Administration (NASA) in the United States and from the
Bundesministerium fur Wirtschaft und Technologie (BMWi)/Deutsches
Zentrum fur Luft und Raumfahrt (DLR) in Germany. This work was supported
in part by the Fermi Guest Investigator Program. The authors wish to
thank the World Wide Lightning Location Network (http://wwlln.net), a
collaboration among over 50 universities and institutions, for providing
the lightning location data used in this paper. The Fermi LAT
Collaboration acknowledges generous ongoing support from a number of
agencies and institutes that have supported both the development and the
operation of the LAT as well as scientific data analysis. These include
NASA and the Department of Energy in the United States, the Commissariat
a l'Energie Atomique and the Centre National de la Recherche
Scientifique/Institut National de Physique Nucleaire et de Physique des
Particules in France, the Agenzia Spaziale Italiana and the Istituto
Nazionale di Fisica Nucleare in Italy, the Ministry of Education,
Culture, Sports, Science and Technology (MEXT), High Energy Accelerator
Research Organization (KEK) and Japan Aerospace Exploration Agency
(JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish
Research Council and the Swedish National Space Board in Sweden. G. F.
acknowledges the support of the Irish Research Council for Science,
Engineering and Technology. S. F. acknowledges the support of the Irish
Research Council for Science, Engineering and Technology, co-funded by
Marie Curie Actions under FP7. D. T. acknowledges support from Science
Foundation Ireland under grant number 09-RFP-AST-2400. The authors thank
Nikolai Ostgaard and an anonymous reviewer for their comments, which
improved the paper.
NR 67
TC 34
Z9 34
U1 1
U2 9
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9380
EI 2169-9402
J9 J GEOPHYS RES-SPACE
JI J. Geophys. Res-Space Phys.
PD JUN
PY 2013
VL 118
IS 6
BP 3805
EP 3830
DI 10.1002/jgra.50205
PG 26
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 228UQ
UT WOS:000325217100097
ER
PT J
AU Chen, CH
Lin, CH
Chang, LC
Huba, JD
Lin, JT
Saito, A
Liu, JY
AF Chen, C. H.
Lin, C. H.
Chang, L. C.
Huba, J. D.
Lin, J. T.
Saito, A.
Liu, J. Y.
TI Thermospheric tidal effects on the ionospheric midlatitude summer
nighttime anomaly using SAMI3 and TIEGCM
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
DE MSNA; SAMI3; TIEGCM; tidal effect
ID NONMIGRATING SEMIDIURNAL TIDES; GENERAL-CIRCULATION MODEL; MIGRATING
SOLAR TIDES; LATENT-HEAT RELEASE; UPPER-ATMOSPHERE; F-REGION;
ENHANCEMENTS; MIDDLE; WIND
AB This paper is the first study to employ a three-dimensional physics-based ionosphere model, SAMI3, coupled with the National Center for Atmospheric Research Thermosphere Ionosphere Electrodynamics General Circulation Model (TIEGCM) and Global Scale Wave Model to simulate the mesospheric and lower thermospheric tidal effects on the development of midlatitude summer nighttime anomaly (MSNA). Using this coupled model, the diurnal variation of MSNA electron densities at 300 km altitude is simulated on both June solstice (day of year (DOY) 167) and December solstice (DOY 350) in 2007. Results show successful reproduction of the southern hemisphere MSNA structure including the eastward drift feature of the southern MSNA, which is not reproduced by the default SAMI3 runs using the neutral winds provided by the empirical Horizontal Wind Model 93 neutral wind model. A linear least squares algorithm for extracting tidal components is utilized to examine the major tidal component affecting the variation of southern MSNA. Results show that the standing diurnal oscillation component dominates the vertical neutral wind manifesting as a diurnal eastward wave-1 drift of the southern MSNA in the local time frame. We also find that the stationary planetary wave-1 component of vertical neutral wind can cause diurnal variation of the summer nighttime electron density enhancement around the midlatitude ionosphere.
C1 [Chen, C. H.; Lin, C. H.; Lin, J. T.] Natl Cheng Kung Univ, Dept Earth Sci, Tainan 701, Taiwan.
[Chang, L. C.; Liu, J. Y.] Natl Cent Univ, Inst Space Sci, Chungli 32054, Taiwan.
[Huba, J. D.] Naval Res Lab, Plasma Phys Div, Washington, DC USA.
[Saito, A.] Kyoto Univ, Dept Geophys, Kyoto, Japan.
[Liu, J. Y.] Natl Cent Univ, Ctr Space & Remote Sensing Res, Chungli 32054, Taiwan.
RP Lin, CH (reprint author), Natl Cheng Kung Univ, Dept Earth Sci, 1 Univ Rd, Tainan 701, Taiwan.
EM charles@mail.ncku.edu.tw
RI Chang, Loren/G-3722-2015; Liu, Jann-Yenq/Q-1668-2015;
OI Lin, Charles C. H./0000-0001-8955-8753
FU National Science Council of Taiwan [NSC-101-2811-M-006-005]; Taiwan NSC
[NSC-101-2111-M-008-021-MY2]
FX This research is partially supported by the grant NSC-101-2811-M-006-005
to the National Cheng Kung University from the National Science Council
of Taiwan. L. C. C. was supported by Taiwan NSC grant
NSC-101-2111-M-008-021-MY2.
NR 52
TC 15
Z9 15
U1 0
U2 6
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9380
EI 2169-9402
J9 J GEOPHYS RES-SPACE
JI J. Geophys. Res-Space Phys.
PD JUN
PY 2013
VL 118
IS 6
BP 3836
EP 3845
DI 10.1002/jgra.50340
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 228UQ
UT WOS:000325217100099
ER
PT J
AU Bernhardt, PA
Fernsler, RF
AF Bernhardt, Paul A.
Fernsler, Richard F.
TI A Transmission-Line Model for Wave Excitation of a Porous Conducting
Sphere
SO IEEE ANTENNAS AND PROPAGATION MAGAZINE
LA English
DT Article
DE Externally excited spherical resonant cavity; large electric fields;
radar cross section
ID DIELECTRIC BOUNDARY; FORMULAS; PLATES; MESH
AB A wire mesh conformed to a spherical surface forms a spherical polyhedron that has unique resonator and scattering properties for electromagnetic (EM) waves. Excitation of the spherical polyhedron by an incident plane wave at specified resonant frequencies yields large internal electric fields. Narrowband enhancements in the backscatter radar cross section are found at these same frequencies. These effects are explained with a model where the mesh is treated as an inductive frequency-selective surface that is used to match a shorted-line resonator attached to a transmission line. With this transmission-line model, the impedance of the inductive surface is shown to be an addition to the expression for the spherical harmonic series used to describe solid conducting spheres and spherical cavities. The resonant modes for the internal and external electric fields of the porous sphere are found with this formulation. The surface mesh is used in the low-frequency limit, where the EM wavelength is much larger than the polygon's holes in the mesh. The impedance (inductance and resistance) of the mesh are adjusted by varying the radii of the edges of the polygons and the conductivity of the edge material. Applications of the spherical porous conducting resonator (SPCR) include glow plasma discharges, measurements of dielectric constants of gases, and frequency-selective radar targets.
C1 [Bernhardt, Paul A.; Fernsler, Richard F.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Bernhardt, PA (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM PauI.Bernhardt@nrl.navy.mil
NR 19
TC 1
Z9 1
U1 1
U2 8
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1045-9243
EI 1558-4143
J9 IEEE ANTENN PROPAG M
JI IEEE Antennas Propag. Mag.
PD JUN
PY 2013
VL 55
IS 3
BP 96
EP 117
DI 10.1109/MAP.2013.6586630
PG 22
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 216NF
UT WOS:000324289800010
ER
PT J
AU Ruth, RA
AF Ruth, Richard A.
TI Historical dictionary of the Indochina War (1945-1954): An international
and interdisciplinary approach
SO JOURNAL OF SOUTHEAST ASIAN STUDIES
LA English
DT Book Review
C1 [Ruth, Richard A.] US Naval Acad, Annapolis, MD USA.
RP Ruth, RA (reprint author), US Naval Acad, Annapolis, MD USA.
NR 1
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 0022-4634
J9 J SOUTHEAST ASIAN ST
JI J. Southeast Asian Stud.
PD JUN
PY 2013
VL 44
IS 2
BP 353
EP 355
DI 10.1017/S0022463413000155
PG 5
WC Area Studies; Asian Studies
SC Area Studies; Asian Studies
GA 192VT
UT WOS:000322515900019
ER
PT J
AU Stettler, JW
Thomas, BS
AF Stettler, Jeffrey W.
Thomas, Brian S.
TI Flooding and structural forensic analysis of the sinking of the RMS
Titanic
SO SHIPS AND OFFSHORE STRUCTURES
LA English
DT Article
DE Titanic; progressive flooding analysis; sinking analysis; compartment
permeability; ship structural analysis; finite-element analysis; hull
girder collapse; ultimate strength; GHS; MAESTRO
AB To mark the 100th anniversary of the sinking of the Titanic, a new detailed flooding and structural engineering study was commissioned by James Cameron and his Blue Planet Marine Research Institute. The goal of the study was to accurately model, simulate and evaluate the progressive flooding, sinking and structural failure of the Titanic following its collision with the iceberg. Detailed computer flooding analysis models were developed, and new novel techniques for dynamic flooding simulation using the commercial software GHSwere developed and implemented. The results of these detailed flooding simulations were used in conjunction with detailed structural finite-element models developed using the commercial ship structural design and analysis software MAESTROfor conducting detailed stress and hull failure analyses. This paper provides technical documentation of the development of the detailed computer models, including sources of information, assumptions, conventions and methods. The paper also provides technical discussion of simulation and analysis methodologies, results of the detailed progressive flooding and sinking analyses, and results of the detailed structural stress and failure analyses, along with important lessons learned' that are applicable to future marine forensic analyses.
C1 [Stettler, Jeffrey W.; Thomas, Brian S.] US Naval Acad, Annapolis, MD USA.
RP Stettler, JW (reprint author), US Naval Acad, Annapolis, MD USA.
EM jwstettler@alum.mit.edu
FU Blue Planet Marine Research Institute; Earthship Productions company; US
Naval Academy; Pusan National University
FX The authors thank the following individuals and organisations for their
support: James Cameron and his Blue Planet Marine Research Institute and
Earthship Productions company, Parks Stephenson, Bill Sauder, Ken
Marschall, DRS Defense Solutions' Advanced Marine Technology Center
(Shaun Hunter, Justin Freimuth and Ming Ma), Creative Systems (Bill
Plice and Stephen Schumacher), Don Lynch, David Gallo, P.H. Nargoelet,
Midshipmen Judson Thomas, Robert Tuohy, Alexander Laun and Robert
Vallance from the US Naval Academy, and Professor Jeom Paik from the
Pusan National University.
NR 19
TC 0
Z9 0
U1 3
U2 23
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1744-5302
J9 SHIPS OFFSHORE STRUC
JI Ships Offshore Struct.
PD JUN 1
PY 2013
VL 8
IS 3-4
BP 346
EP 366
DI 10.1080/17445302.2012.747289
PG 21
WC Engineering, Marine
SC Engineering
GA 187GW
UT WOS:000322105900009
ER
PT J
AU Chen, W
Mied, RP
AF Chen, Wei
Mied, Richard P.
TI River velocities from sequential multispectral remote sensing images
SO WATER RESOURCES RESEARCH
LA English
DT Article
DE current; river current
ID SEA-SURFACE VELOCITIES; TEMPERATURE TIME-SERIES; EDDY FORMATION; INVERSE
MODEL; SEQUENCES; FLOW
AB We address the problem of extracting surface velocities from a pair of multispectral remote sensing images over rivers using a new nonlinear multiple-tracer form of the global optimal solution (GOS). The derived velocity field is a valid solution across the image domain to the nonlinear system of equations obtained by minimizing a cost function inferred from the conservation constraint equations for multiple tracers. This is done by deriving an iteration equation for the velocity, based on the multiple-tracer displaced frame difference equations, and a local approximation to the velocity field. The number of velocity equations is greater than the number of velocity components, and thus overly constrain the solution. The iterative technique uses Gauss-Newton and Levenberg-Marquardt methods and our own algorithm of the progressive relaxation of the overconstraint. We demonstrate the nonlinear multiple-tracer GOS technique with sequential multispectral Landsat and ASTER images over a portion of the Potomac River in MD/VA, and derive a dense field of accurate velocity vectors. We compare the GOS river velocities with those from over 12 years of data at four NOAA reference stations, and find good agreement. We discuss how to find the appropriate spatial and temporal resolutions to allow optimization of the technique for specific rivers.
C1 [Chen, Wei; Mied, Richard P.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Chen, W (reprint author), Naval Res Lab, Remote Sensing Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM wei.chen@nrl.navy.mil
FU ONR [WU 72-4279]
FX This work was conducted with ONR funding under the project "River
dynamics from remote sensing images" (WU 72-4279). We would like to
thank Bo-Cai Gao and David Miller for several discussions about the
optical properties of water.
NR 31
TC 5
Z9 5
U1 1
U2 12
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0043-1397
J9 WATER RESOUR RES
JI Water Resour. Res.
PD JUN
PY 2013
VL 49
IS 6
BP 3093
EP 3103
DI 10.1002/wrcr.20267
PG 11
WC Environmental Sciences; Limnology; Water Resources
SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Water
Resources
GA 189BF
UT WOS:000322241300002
ER
PT J
AU Snider, KF
Halpern, BH
Rendon, RG
Kidalov, MV
AF Snider, Keith F.
Halpern, Barton H.
Rendon, Rene G.
Kidalov, Max V.
TI Corporate social responsibility and public procurement: How supplying
government affects managerial orientations
SO JOURNAL OF PURCHASING AND SUPPLY MANAGEMENT
LA English
DT Article
DE Corporate social responsibility; Public procurement; Government
purchasing; Contracting
ID STAKEHOLDER THEORY; COMPETITIVE ADVANTAGE; INSTITUTIONAL THEORY; CHAIN
MANAGEMENT; UNITED-STATES; PERFORMANCE; BUSINESS; IMPLICIT; INDUSTRY;
DRIVERS
AB How does government drive the corporate social responsibility of firms that supply it with goods and services? This paper reviews relevant theory and practice to describe ways in which public procurement shapes corporate social responsibility, and it builds upon theory to develop testable propositions to describe these influences. Using the case of U.S. defense procurement, statistical analysis indicates a significant relationship between the extent to which firms engage in defense procurement and the corporate social responsibility orientations of their managers. The findings have application both for social responsibility theory and for public procurement policy and practice. Published by Elsevier Ltd.
C1 [Snider, Keith F.; Rendon, Rene G.; Kidalov, Max V.] USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
[Halpern, Barton H.] USA, Attn RDAR EIJ, ARDEC, Picatinny Arsenal, NJ 07806 USA.
RP Snider, KF (reprint author), USN, Postgrad Sch, Grad Sch Business & Publ Policy, 555 Dyer Rd, Monterey, CA 93943 USA.
EM ksnider@nps.edu
NR 85
TC 6
Z9 6
U1 2
U2 33
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1478-4092
J9 J PURCH SUPPLY MANAG
JI J. Purch. Supply Manag.
PD JUN
PY 2013
VL 19
IS 2
BP 63
EP 72
DI 10.1016/j.pursup.2013.01.001
PG 10
WC Management
SC Business & Economics
GA 185AE
UT WOS:000321936800003
ER
PT J
AU Hernandez, SC
Bennett, CJC
Junkermeier, CE
Tsoi, SD
Bezares, FJ
Stine, R
Robinson, JT
Lock, EH
Boris, DR
Pate, BD
Caldwell, JD
Reinecke, TL
Sheehan, PE
Walton, SG
AF Hernandez, Sandra C.
Bennett, Charlee J. C.
Junkermeier, Chad E.
Tsoi, Stanislav D.
Bezares, Francisco J.
Stine, Rory
Robinson, Jeremy T.
Lock, Evgeniya H.
Boris, David R.
Pate, Brian D.
Caldwell, Joshua D.
Reinecke, Thomas L.
Sheehan, Paul E.
Walton, Scott G.
TI Chemical Gradients on Graphene To Drive Droplet Motion
SO ACS NANO
LA English
DT Article
DE graphene; chemical gradient; droplet motion; plasma functionalization;
chemical force microscopy; surface energy; adhesion
ID BEAM-GENERATED PLASMAS; EPITAXIAL GRAPHENE; DIMETHYL METHYLPHOSPHONATE;
FILMS; OXIDE; FUNCTIONALIZATION; TRANSISTORS; POLYETHYLENE; PERFORMANCE;
KINETICS
AB This work demonstrates the production of a well-controlled, chemical gradient on the surface of graphene. By inducing a gradient of oxygen functional groups, drops of water and dimethyl-methylphosphonate (a nerve agent simulant) are "pulled" in the direction of increasing oxygen content, while fluorine gradients "push" the droplet motion in the direction of decreasing fluorine content. The direction of motion Is broadly attributed to increasing/decreasing hydrophilicity, which is correlated to high/low adhesion and binding energy. Such tunability in surface chemistry provides additional capabilities in device design for applications ranging from microfluidics to chemical sensing.
C1 [Bennett, Charlee J. C.] Nova Res Inc, Alexandria, VA 22308 USA.
[Tsoi, Stanislav D.; Sheehan, Paul E.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
[Junkermeier, Chad E.; Bezares, Francisco J.; Robinson, Jeremy T.; Caldwell, Joshua D.; Reinecke, Thomas L.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[Hernandez, Sandra C.; Lock, Evgeniya H.; Boris, David R.; Walton, Scott G.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Pate, Brian D.] Def Threat Reduct Agcy, Joint Sci & Technol Off Chem & Biol Def, Ft Belvoir, VA 22060 USA.
[Hernandez, Sandra C.; Junkermeier, Chad E.] USN, Res Lab, NRC Postdoctoral Res Associateship Program, Washington, DC 20375 USA.
[Bezares, Francisco J.] USN, Res Lab, ASEE Postdoctoral Res Associateship Program, Washington, DC 20375 USA.
RP Hernandez, SC (reprint author), USN, Res Lab, NRC Postdoctoral Res Associateship Program, Washington, DC 20375 USA.
EM sandra.hangarter.ctr@nrl.navy.mil; paulsheehan@nrl.navy.mil;
scott.walton@nrl.navy.mil
RI Robinson, Jeremy/F-2748-2010; Hernandez, Sandra/C-6724-2013; Caldwell,
Joshua/B-3253-2008; Stine, Rory/C-6709-2013; Sheehan, Paul/B-4793-2010
OI Caldwell, Joshua/0000-0003-0374-2168; Sheehan, Paul/0000-0003-2668-4124
FU Naval Research Laboratory Base Program; Defense Threat Reduction Agency
under MIPR [B112609M]; National Research Council; American Society of
Engineering Education
FX This work was supported by the Naval Research Laboratory Base Program
and the Defense Threat Reduction Agency under MIPR number B112609M.
S.C.H. and C.E.J. appreciates the support of the National Research
Council. F.J.B. appreciates the support of the American Society of
Engineering Education. S.C.H. would like to thank A. K. Noll for
designing the physical masks and Dr. R. F. Fernsler for useful
discussions on plasma/surface interactions.
NR 60
TC 48
Z9 48
U1 6
U2 110
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
EI 1936-086X
J9 ACS NANO
JI ACS Nano
PD JUN
PY 2013
VL 7
IS 6
BP 4746
EP 4755
DI 10.1021/nn304267b
PG 10
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 173QK
UT WOS:000321093800007
PM 23659463
ER
PT J
AU Uthus, DC
Aha, DW
AF Uthus, David C.
Aha, David W.
TI Multiparticipant chat analysis: A survey
SO ARTIFICIAL INTELLIGENCE
LA English
DT Article
DE Multiparticipant chat; Artificial intelligence; Natural language
processing; Machine learning; Text analysis
ID INTERNET RELAY CHAT; DECEPTION DETECTION; CONVERSATIONS; TEXT;
IDENTIFICATION; COMMUNICATION; ROOMS
AB We survey research on the analysis of multiparticipant chat. Multiple research and applied communities (e.g., AI, educational, law enforcement, military) have interest in this topic. After introducing some context, we describe relevant problems and how these have been addressed using AI techniques. We also identify recent research trends and unresolved issues that could benefit from more attention. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Uthus, David C.] NRC NRL, Washington, DC 20375 USA.
[Aha, David W.] Naval Res Lab, Navy Ctr Appl Res Artificial Intelligence, Washington, DC 20375 USA.
RP Uthus, DC (reprint author), NRC NRL, Washington, DC 20375 USA.
EM david.uthus.ctr@nrl.navy.mil; david.aha@nrl.navy.mil
FU NRL
FX Thanks to NRL for funding this research and to Jeffrey Ellen and Micha
Elsner for their feedback on this paper. David Uthus performed this work
while an NRC postdoctoral fellow located at the Naval Research
Laboratory. The views and opinions contained in this paper are those of
the authors and should not be interpreted as representing the official
views or policies, either expressed or implied, of NRL or the DoD.
NR 107
TC 7
Z9 7
U1 0
U2 15
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0004-3702
J9 ARTIF INTELL
JI Artif. Intell.
PD JUN-JUL
PY 2013
VL 199
BP 106
EP 121
DI 10.1016/j.artint.2013.02.004
PG 16
WC Computer Science, Artificial Intelligence
SC Computer Science
GA 179PV
UT WOS:000321534700006
ER
PT J
AU Hummel, CA
Rivinius, T
Nieva, MF
Stahl, O
van Belle, G
Zavala, RT
AF Hummel, C. A.
Rivinius, Th.
Nieva, M. -F.
Stahl, O.
van Belle, G.
Zavala, R. T.
TI Dynamical mass of the O-type supergiant in zeta Orionis A
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE techniques: interferometric; stars: fundamental parameters; supergiants;
stars: individual: zeta Orionis A; binaries: spectroscopic
ID STELLAR MODELS; EFFECTIVE TEMPERATURES; 120 M(CIRCLE-DOT); VISUAL
BINARIES; STARS; GRIDS; ATMOSPHERES; PARALLAXES; RADII
AB Aims. A close companion of zeta Orionis A was found in 2000 with the Navy Precision Optical Interferometer (NPOI), and shown to be a physical companion. Because the primary is a supergiant of type O, for which dynamical mass measurements are very rare, the companion was observed with NPOI over the full 7-year orbit. Our aim was to determine the dynamical mass of a supergiant that, due to the physical separation of more than 10 AU between the components, cannot have undergone mass exchange with the companion.
Methods. The interferometric observations allow measuring the relative positions of the binary components and their relative brightness. The data collected over the full orbital period allows all seven orbital elements to be determined. In addition to the interferometric observations, we analyzed archival spectra obtained at the Calar Alto, Haute Provence, Cerro Armazones, and La Silla observatories, as well as new spectra obtained at the VLT on Cerro Paranal. In the high-resolution spectra we identified a few lines that can be associated exclusively to one or the other component for the measurement of the radial velocities of both. The combination of astrometry and spectroscopy then yields the stellar masses and the distance to the binary star.
Results. The resulting masses for components Aa of 14.0 +/- 2.2 M-circle dot and Ab of 7.4 +/- 1.1 M-circle dot are low compared to theoretical expectations, with a distance of 294 +/- 21 pc which is smaller than a photometric distance estimate of 387 +/- 54 pc based on the spectral type B0III of the B component. If the latter (because it is also consistent with the distance to the Orion OB1 association) is adopted, the mass of the secondary component Ab of 14 +/- 3 M-circle dot would agree with classifying a star of type B0.5IV. It is fainter than the primary by about 2.2 +/- 0.1 magnitudes in the visual. The primary mass is then determined to be 33 +/- 10 M-circle dot. The possible reasons for the distance discrepancy are most likely related to physical effects, such as small systematic errors in the radial velocities due to stellar winds.
C1 [Hummel, C. A.] European So Observ, D-85748 Garching, Germany.
[Rivinius, Th.] European So Observ, Santiago 19, Chile.
[Nieva, M. -F.] Univ Erlangen Nurnberg, Dr Karl Remeis Sternwarte, D-96049 Bamberg, Germany.
[Nieva, M. -F.] Univ Erlangen Nurnberg, ECAP, D-96049 Bamberg, Germany.
[Nieva, M. -F.] Univ Innsbruck, Inst Astro & Particle Phys, A-6020 Innsbruck, Austria.
[Stahl, O.] Landessternwarte Heidelberg Konigstuhl, ZAH, D-69117 Heidelberg, Germany.
[van Belle, G.] Lowell Observ, Flagstaff, AZ 86001 USA.
[Zavala, R. T.] USN Observ, Flagstaff Stn, Flagstaff, AZ 86001 USA.
RP Hummel, CA (reprint author), European So Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany.
EM chummel@eso.org
FU Office of Naval Research; Oceanographer of the Navy
FX We thank Dr. Norbert Przybilla for providing the FOCES spectrum. The
Navy Precision Optical Interferometer is a joint project of the Naval
Research Laboratory and the US Naval Observatory, in cooperation with
Lowell Observatory, and is funded by the Office of Naval Research and
the Oceanographer of the Navy. The authors would like to thank Jim
Benson and the NPOI observational support staff whose efforts made this
project possible. This research made use of the NASA ADS abstract
service and the SIMBAD database, operated at the CDS, Strasbourg,
France. This research also made use of the Washington Double Star
Catalog maintained at the US Naval Observatory.
NR 39
TC 11
Z9 11
U1 0
U2 0
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 0004-6361
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD JUN
PY 2013
VL 554
AR A52
DI 10.1051/0004-6361/201321434
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 164XA
UT WOS:000320444200051
ER
PT J
AU Denning, PJ
AF Denning, Peter J.
TI Thumb Numbers
SO COMMUNICATIONS OF THE ACM
LA English
DT Editorial Material
C1 [Denning, Peter J.] USN, Postgrad Sch, Monterey, CA 93943 USA.
[Denning, Peter J.] USN, Postgrad Sch, Cebrowski Inst Informat Innovat, Monterey, CA USA.
RP Denning, PJ (reprint author), USN, Postgrad Sch, Monterey, CA 93943 USA.
EM pjd@nps.edu
NR 6
TC 0
Z9 0
U1 0
U2 1
PU ASSOC COMPUTING MACHINERY
PI NEW YORK
PA 2 PENN PLAZA, STE 701, NEW YORK, NY 10121-0701 USA
SN 0001-0782
J9 COMMUN ACM
JI Commun. ACM
PD JUN
PY 2013
VL 56
IS 6
BP 35
EP 37
DI 10.1145/2461256.2461269
PG 3
WC Computer Science, Hardware & Architecture; Computer Science, Software
Engineering; Computer Science, Theory & Methods
SC Computer Science
GA 183VX
UT WOS:000321846500018
ER
PT J
AU Wright, MM
Epps, B
Dropkin, A
Truscott, TT
AF Wright, Michael M.
Epps, Brenden
Dropkin, Amanda
Truscott, Tadd T.
TI Cavitation of a submerged jet
SO EXPERIMENTS IN FLUIDS
LA English
DT Article
ID WATER JETS; EROSION; INCEPTION; CAVITY
AB A cavitation cloud forms when a high-pressure water jet is submerged in a tank of quiescent water. The water jet is formed as high-pressure nitrogen forces a fixed-volume column of water through a nozzle. The diameter and exit velocity of the water jet affect the behavior and geometry of the resulting cavitation. The relationships between the Reynolds number of the flow and the measured cloud geometry, propagation distance, pulsation frequency, and front velocity are presented. The distance a cloud propagated increased by 30 % when the diameter of the jet was doubled from 1.0 to 2.0 mm. Additionally, the longitudinal cross-sectional area and propagation distance increase with increasing Reynolds number, while the frequency at which the jet pulsed from the nozzle was found to decrease with an increase in Reynolds number.
C1 [Wright, Michael M.; Truscott, Tadd T.] Brigham Young Univ, Dept Mech Engn, Provo, UT 84602 USA.
[Epps, Brenden] Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA.
[Dropkin, Amanda] Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Truscott, TT (reprint author), Brigham Young Univ, Dept Mech Engn, 435 CTB, Provo, UT 84602 USA.
EM truscott@byu.edu
FU Naval Research Enterprise Internship Program (NREIP); In-house
Laboratory Independent Research Program (ILIR) at the Naval Undersea
Warfare Center; Brigham Young University Department of Mechanical
Engineering; Thayer School of Engineering at Dartmouth College
FX We are grateful for the funding through the Naval Research Enterprise
Internship Program (NREIP) and the In-house Laboratory Independent
Research Program (ILIR) at the Naval Undersea Warfare Center. We also
thank Tom Gieseke and Bob Kuklinski for the initial idea/patent. We also
wish to thank the Brigham Young University Department of Mechanical
Engineering and the Thayer School of Engineering at Dartmouth College
for providing financial support for this work.
NR 29
TC 5
Z9 5
U1 2
U2 34
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0723-4864
J9 EXP FLUIDS
JI Exp. Fluids
PD JUN
PY 2013
VL 54
IS 6
AR 1541
DI 10.1007/s00348-013-1541-3
PG 21
WC Engineering, Mechanical; Mechanics
SC Engineering; Mechanics
GA 175VS
UT WOS:000321262300017
ER
PT J
AU Elleman, BA
AF Elleman, Bruce A.
TI ADMINISTERING THE COLONIZER: Manchuria's Russians under Chinese Rule,
1918-29
SO PACIFIC AFFAIRS
LA English
DT Book Review
C1 [Elleman, Bruce A.] USN, War Coll, Newport, RI USA.
RP Elleman, BA (reprint author), USN, War Coll, Newport, RI USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU PACIFIC AFFAIRS UNIV BRITISH COLUMBIA
PI VANCOUVER
PA #164-1855 WEST MALL, VANCOUVER, BC V6T 1Z2, CANADA
SN 0030-851X
J9 PAC AFF
JI Pac. Aff.
PD JUN
PY 2013
VL 86
IS 2
SI SI
BP 407
EP 409
PG 3
WC Area Studies
SC Area Studies
GA 161RG
UT WOS:000320210400025
ER
PT J
AU Leake, JE
Lukin, VS
Linton, MG
AF Leake, James E.
Lukin, Vyacheslav S.
Linton, Mark G.
TI Magnetic reconnection in a weakly ionized plasma
SO PHYSICS OF PLASMAS
LA English
DT Article
ID CHROMOSPHERIC ANEMONE JETS; SOLAR ATMOSPHERE; TEARING INSTABILITY;
QUIET-SUN; MODELS; EMERGENCE; SPICULES; FLUX
AB Magnetic reconnection in partially ionized plasmas is a ubiquitous phenomenon spanning the range from laboratory to intergalactic scales, yet it remains poorly understood and relatively little studied. Here, we present results from a self-consistent multi-fluid simulation of magnetic reconnection in a weakly ionized reacting plasma with a particular focus on the parameter regime of the solar chromosphere. The numerical model includes collisional transport, interaction and reactions between the species, and optically thin radiative losses. This model improves upon our previous work in Leake et al. ["Multi-fluid simulations of chromospheric magnetic reconnection in a weakly ionized reacting plasma," Astrophys. J. 760, 109 (2012)] by considering realistic chromospheric transport coefficients, and by solving a generalized Ohm's law that accounts for finite ion-inertia and electron-neutral drag. We find that during the two dimensional reconnection of a Harris current sheet with an initial width larger than the neutral-ion collisional coupling scale, the current sheet thins until its width becomes less than this coupling scale, and the neutral and ion fluids decouple upstream from the reconnection site. During this process of decoupling, we observe reconnection faster than the single-fluid Sweet-Parker prediction, with recombination and plasma outflow both playing a role in determining the reconnection rate. As the current sheet thins further and elongates, it becomes unstable to the secondary tearing instability, and plasmoids are seen. The reconnection rate, outflows, and plasmoids observed in this simulation provide evidence that magnetic reconnection in the chromosphere could be responsible for jet-like transient phenomena such as spicules and chromospheric jets. (C) 2013 AIP Publishing LLC.
C1 [Leake, James E.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[Lukin, Vyacheslav S.; Linton, Mark G.] US Naval Res Lab, Washington, DC 20375 USA.
RP Leake, JE (reprint author), George Mason Univ, Coll Sci, 4400 Univ Dr, Fairfax, VA 22030 USA.
EM jleake@gmu.edu
FU NASA; ONR 6.1 Program; NRL-Hinode analysis program
FX This work has been supported by the NASA Living With a Star & Solar and
Heliospheric Physics programs, the ONR 6.1 Program, and by the
NRL-Hinode analysis program. The simulations were performed under a
grant of computer time from the DoD HPC program. We also thank Eric T.
Meier for useful discussions.
NR 32
TC 15
Z9 15
U1 0
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 1070-664X
EI 1089-7674
J9 PHYS PLASMAS
JI Phys. Plasmas
PD JUN
PY 2013
VL 20
IS 6
AR 061202
DI 10.1063/1.4811140
PG 12
WC Physics, Fluids & Plasmas
SC Physics
GA 175ZT
UT WOS:000321273200004
ER
PT J
AU Panteleev, G
Yaremchuk, M
Francis, O
Kikuchi, T
AF Panteleev, Gleb
Yaremchuk, Max
Francis, Oceana
Kikuchi, Takashi
TI Configuring high frequency radar observations in the Southern Chukchi
Sea
SO POLAR SCIENCE
LA English
DT Article
DE Data assimilation; Optimization; Chukchi Sea; High frequency radar
ID SURFACE CURRENTS; OCEAN; RECONSTRUCTION; ASSIMILATION; CIRCULATION;
SIMULATION; STRAIT
AB In recent years, monitoring offshore surface circulation in the Arctic Ocean with high frequency radars has become an issue of increasing practical importance. In this study, radar positions are optimized by minimizing the reconstruction errors of the surface currents in the Southeastern Chukchi Sea. By means of an adjoint sensitivity technique it is shown that in the case of a pair of radars, their optimal (i.e. most favorable) location is at Kivalina, a settlement near the strongest outflow of the Alaskan Coastal Current from the monitored domain. The least favorable location is at Shishmaref, a settlement near relatively weak inflow into the region as observed from the coast. However, if two pairs of radars are available, the best locations are Kivalina and Shishmaref. The results are verified using observational system simulation experiments (OSSEs) performed in the framework of a 4-dimensional variational assimilation of simulated radar observations into a numerical model. It is shown that correct specification of the first guess solution is of primary importance for obtaining realistic results from both adjoint sensitivity analysis and OSSEs. This emphasizes the necessity of obtaining accurate high resolution climatologies for future ice-free offshore regions in the Arctic. Published by Elsevier B.V. and NIPR.
C1 [Panteleev, Gleb] Univ Alaska Fairbanks, Int Arctic Res Ctr, Fairbanks, AK 99775 USA.
[Yaremchuk, Max] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
[Francis, Oceana] Univ Hawaii Manoa, Dept Civil & Environm Engn, Honolulu, HI 96822 USA.
[Kikuchi, Takashi] Japan Agcy Marine Earth Sci & Technol, Kanazawa Ku, Yokohama, Kanagawa 2360001, Japan.
RP Panteleev, G (reprint author), Univ Alaska Fairbanks, Int Arctic Res Ctr, POB 757340, Fairbanks, AK 99775 USA.
EM gleb@iarc.uaf.edu
FU Japan Agency for Marine-Earth Science and Technology (JAMSTEC) through
their sponsorship of research activities at the International Arctic
Research Center; Office of Naval Research [0602435N]; National Science
Foundation [1107925, 1203740]; North Pacific Research Board (NPRB)
[828]; BP/GOM Research Initiative through the Consortium for Advanced
Research on Transport of Hydrocarbon in the Environment (CARTHE)
FX This study was supported by the Japan Agency for Marine-Earth Science
and Technology (JAMSTEC) through their sponsorship of research
activities at the International Arctic Research Center, and by the
Office of Naval Research (Program element 0602435N, project
"Observational Impact"). G.P. was supported by the National Science
Foundation (1107925 and 1203740) and by the North Pacific Research Board
(NPRB) 828 award. M.Y. was supported by a grant from the BP/GOM Research
Initiative through the Consortium for Advanced Research on Transport of
Hydrocarbon in the Environment (CARTHE).
NR 25
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1873-9652
J9 POLAR SCI
JI Polar Sci.
PD JUN
PY 2013
VL 7
IS 2
BP 72
EP 81
DI 10.1016/j.polar.2013.01.001
PG 10
WC Ecology; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 180KZ
UT WOS:000321595400003
ER
PT J
AU DeMaria, M
Knaff, JA
Brennan, MJ
Brown, D
Knabb, RD
DeMaria, RT
Schumacher, A
Lauer, CA
Roberts, DP
Sampson, CR
Santos, P
Sharp, D
Winters, KA
AF DeMaria, Mark
Knaff, John A.
Brennan, Michael J.
Brown, Daniel
Knabb, Richard D.
DeMaria, Robert T.
Schumacher, Andrea
Lauer, Christopher A.
Roberts, David P.
Sampson, Charles R.
Santos, Pablo
Sharp, David
Winters, Katherine A.
TI Improvements to the Operational Tropical Cyclone Wind Speed Probability
Model
SO WEATHER AND FORECASTING
LA English
DT Article
DE Tropical cyclones; Wind; Statistical techniques; Operational
forecasting; Probability forecasts; models; distribution; Emergency
preparedness
ID PREDICTION
AB The National Hurricane Center Hurricane Probability Program, which estimated the probability of a tropical cyclone passing within a specific distance of a selected set of coastal stations, was replaced by the more general Tropical Cyclone Surface Wind Speed Probabilities in 2006. A Monte Carlo (MC) method is used to estimate the probabilities of 34-, 50-, and 64-kt (1 kt = 0.51 m s(-1)) winds at multiple time periods through 120 h. Versions of the MC model are available for the Atlantic, the combined eastern and central North Pacific, and the western North Pacific. This paper presents a verification of the operational runs of the MC model for the period 2008-11 and describes model improvements since 2007. The most significant change occurred in 2010 with the inclusion of a method to take into account the uncertainty of the track forecasts on a case-by-case basis, which is estimated from the spread of a dynamical model ensemble and other parameters. The previous version represented the track uncertainty from the error distributions from the previous 5 yr of forecasts from the operational centers, with no case-to-case variability. Results show the MC model provides robust estimates of the wind speed probabilities using a number of standard verification metrics, and that the inclusion of the case-by-case measure of track uncertainty improved the probability estimates. Beginning in 2008, an older operational wind speed probability table product was modified to include information from the MC model. This development and a verification of the new version of the table are described.
C1 [DeMaria, Mark; Knaff, John A.] NOAA NESDIS, Ft Collins, CO USA.
[Brennan, Michael J.; Brown, Daniel; Knabb, Richard D.; Roberts, David P.] NOAA NWS NCEP NHC, Miami, FL USA.
[DeMaria, Robert T.; Schumacher, Andrea] Colorado State Univ, Cooperat Inst Res Atmosphere, Ft Collins, CO 80523 USA.
[Lauer, Christopher A.] NOAA NWS NCEP SWPC, Boulder, CO USA.
[Roberts, David P.] Fleet Weather Ctr, Norfolk, VA USA.
[Sampson, Charles R.] NRL, Monterey, CA USA.
[Santos, Pablo] NWS, Miami, FL USA.
[Sharp, David] NWS, Melbourne, FL USA.
RP DeMaria, M (reprint author), NOAA NESDIS STAR, CIRA CSU, 1375 Campus Delivery, Ft Collins, CO 80523 USA.
EM mark.demaria@noaa.gov
RI Knaff, John /F-5599-2010; DeMaria, Mark/F-5583-2010
OI Knaff, John /0000-0003-0427-1409;
FU NOAA Joint Hurricane Testbed; Hurricane Forecast Improvement Project
under NOAA [NA17RJ1228, NA09AANWG0149]
FX This project is supported by the NOAA Joint Hurricane Testbed and the
Hurricane Forecast Improvement Project under NOAA Grants NA17RJ1228 and
NA09AANWG0149. Valuable comments were received from the three anonymous
reviewers. The views, opinions, and findings contained in this report
are those of the authors and should not be construed as an official
National Oceanic and Atmospheric Administration or U.S. government
position, policy, or decision.
NR 11
TC 10
Z9 10
U1 0
U2 6
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0882-8156
J9 WEATHER FORECAST
JI Weather Forecast.
PD JUN
PY 2013
VL 28
IS 3
BP 586
EP 602
DI 10.1175/WAF-D-12-00116.1
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 169EV
UT WOS:000320761900004
ER
PT J
AU Marmorino, GO
Smith, GB
Miller, WD
AF Marmorino, George O.
Smith, Geoffrey B.
Miller, W. David
TI Infrared Remote Sensing of Surf-Zone Eddies
SO IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE
SENSING
LA English
DT Article; Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE Airborne remote sensing; California (USA); Huntington Beach; infrared
imagery; slicks; spiral vortex; surf-zone eddies
ID RIP CURRENTS; NEARSHORE; SEA
AB Airborne infrared imagery is used for the first time to investigate characteristics of surf-zone eddies, occurring along an along-shore uniform beach. Eddies are found to have diameters of 100 to 150 m, an alongshore spacing of about 375 m (2.5 times the surf-zone width), and lifetimes of 40 min and longer. Eddies travel alongshore at speeds of similar to 0.3 to 0.5 m/s, at a distance from the shoreline of about 1.3 surf-zone widths. Eddies are also observed to move directly offshore, two surf-zone widths from the shoreline. Fine-scale thermal structure within an eddy includes similar to 6-m-wide cold patches, possibly the surface imprints of bottom-induced turbulence, and a small (<10-m wide) 'cold core', likely from accumulation of surfactant by radially inward surface flow. Visualization of an eddy is enhanced through flow deformation of surfactant slicks. In particular, narrow slicks appear to be wound-up by an eddy into spirals similar in form to those of a free vortex. In this sense, these nearshore eddies resemble ocean sub-mesoscale 'spiral eddies' as seen in synthetic-aperture radar and sunglint imagery.
C1 [Marmorino, George O.; Smith, Geoffrey B.; Miller, W. David] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Marmorino, GO (reprint author), Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RI chen, zhu/K-5923-2013;
OI Miller, W. David/0000-0002-4940-5987
FU Office of Naval Research [72-9201]
FX This work was supported by the Office of Naval Research and conducted
under Naval Research Laboratory project 72-9201. NRL contribution
NRL/JA/7230-12-0269.
NR 30
TC 3
Z9 3
U1 1
U2 25
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1939-1404
EI 2151-1535
J9 IEEE J-STARS
JI IEEE J. Sel. Top. Appl. Earth Observ. Remote Sens.
PD JUN
PY 2013
VL 6
IS 3
SI SI
BP 1710
EP 1718
DI 10.1109/JSTARS.2013.2257695
PG 9
WC Engineering, Electrical & Electronic; Geography, Physical; Remote
Sensing; Imaging Science & Photographic Technology
SC Engineering; Physical Geography; Remote Sensing; Imaging Science &
Photographic Technology
GA 170RR
UT WOS:000320871800068
ER
PT J
AU Truesdale, D
AF Truesdale, David
TI A Probability Distribution Method for Detecting Radio-Frequency
Interference in WindSat Observations
SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
LA English
DT Article
DE Microwave remote sensing; radio-frequency interference (RFI); WindSat
ID AMSR-E; MICROWAVE RADIOMETRY; MITIGATION; RFI; IDENTIFICATION;
PERFORMANCE; LAND
AB The detection of radio-frequency interference (RFI) continues to be an important problem for satellite-based microwave radiometers. This paper introduces two new probability-distribution-based techniques for computing the likelihood that a given brightness temperature observation contains an RFI signal. These methods extend the spectral difference method already being employed for the detection of RFI signals, and they allow for simultaneous observation-by-observation RFI detection of both land-and sea-based brightness temperature observations. This paper starts by laying out the theoretical groundwork for both techniques. It will then expand upon that groundwork to detail its practical application in analyzing WindSat brightness temperature observations. Finally, this paper compares the resulting probability indices from the detailed algorithms with spectral difference and principle component analysis indices computed from WindSat observations for various geographic regions. These comparisons will show effective RFI signal detection by these new techniques for RFI signal strengths as low as 4-5 K.
C1 US Naval Res Lab, Remote Sensing Phys Branch, Washington, DC 20375 USA.
RP Truesdale, D (reprint author), US Naval Res Lab, Remote Sensing Phys Branch, Washington, DC 20375 USA.
NR 16
TC 6
Z9 6
U1 0
U2 8
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0196-2892
J9 IEEE T GEOSCI REMOTE
JI IEEE Trans. Geosci. Remote Sensing
PD JUN
PY 2013
VL 51
IS 6
BP 3780
EP 3788
DI 10.1109/TGRS.2012.2223473
PN 2
PG 9
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA 171PK
UT WOS:000320941300026
ER
PT J
AU Buchner, SP
Miller, F
Pouget, V
McMorrow, DP
AF Buchner, Stephen P.
Miller, Florent
Pouget, Vincent
McMorrow, Dale P.
TI Pulsed-Laser Testing for Single-Event Effects Investigations
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article
DE Heavy ions; pulse laser; single-event effects; test circuits
ID ERROR CHARACTERIZATION; INTEGRATED-CIRCUITS; 2-PHOTON ABSORPTION; CMOS
DEVICES; TRANSIENTS; COLLECTION; SIMULATION; UPSET; TEMPERATURE;
SENSITIVITY
AB The application of pulsed lasers to the study of Single-Event Effects (SEEs) in integrated circuits and devices is described. The role of a pulsed laser is to provide spatial and temporal information about SEEs, information that is not available when broad-beam ion sources are used. A detailed description is given of the mechanisms involved, including light propagation and absorption by both linear and non-linear processes. Numerous examples highlight the versatility and usefulness of the technique in the study of SEEs.
C1 [Buchner, Stephen P.; McMorrow, Dale P.] Naval Res Lab, Washington, DC 20375 USA.
[Miller, Florent] EADS, Suresnes, France.
[Pouget, Vincent] Univ Bordeaux, IMS, Bordeaux, France.
RP Buchner, SP (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM florent.miller@eads.net; vincent.pouget@ims-bordeaux.fr
NR 67
TC 20
Z9 20
U1 1
U2 16
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD JUN
PY 2013
VL 60
IS 3
SI SI
BP 1852
EP 1875
DI 10.1109/TNS.2013.2255312
PN 2
PG 24
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 170MU
UT WOS:000320857200014
ER
PT J
AU Titus, JL
AF Titus, Jeffrey L.
TI An Updated Perspective of Single Event Gate Rupture and Single Event
Burnout in Power MOSFETs
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article
DE Dielectric rupture; powerMOSFET; SEB; SEGR; single-event burnout;
single-event gate rupture
ID HEAVY-ION IRRADIATION; LETHAL SEGR FAILURES; ANGULAR-DEPENDENCE;
SUPER-JUNCTION; LINEAR DEVICES; DIELECTRIC-BREAKDOWN;
BIPOLAR-TRANSISTORS; BACKSIDE LASER; ENERGY; OXIDES
AB Studies over the past 25 years have shown that heavy ions can trigger catastrophic failure modes in power MOSFETs [e. g., single-event gate rupture (SEGR) and single-event burnout (SEB)]. In 1996, two papers were published in a special issue of the IEEE TRANSACTION ON NUCLEAR SCIENCE [Johnson, Palau, Dachs, Galloway and Schrimpf, "A Review of the Techniques Used for Modeling Single-Event Effects in Power MOSFETs," IEEE Trans. Nucl. Sci., vol. 43, no. 2, pp. 546-560, April. 1996], [Titus and Wheatley, "Experimental Studies of Single-Event Gate Rupture and Burnout in Vertical Power MOSFETs," IEEE Trans. Nucl. Sci., vol. 43, no. 2, pp. 533-545, Apr. 1996]. Those two papers continue to provide excellent information and references with regard to SEB and SEGR in vertical planar MOSFETs. This paper provides updated references/information and provides an updated perspective of SEB and SEGR in vertical planar MOSFETs as well as provides references/information to other device types that exhibit SEB and SEGR effects.
C1 NAVSEA Crane, Crane, IN 47522 USA.
RP Titus, JL (reprint author), NAVSEA Crane, Crane, IN 47522 USA.
EM Jeffrey.Titus@navy.mil
NR 119
TC 19
Z9 19
U1 2
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD JUN
PY 2013
VL 60
IS 3
SI SI
BP 1912
EP 1928
DI 10.1109/TNS.2013.2252194
PN 2
PG 17
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 170MU
UT WOS:000320857200016
ER
PT J
AU Quinn, HM
Black, DA
Robinson, WH
Buchner, SP
AF Quinn, Heather M.
Black, Dolores A.
Robinson, William H.
Buchner, Stephen P.
TI Fault Simulation and Emulation Tools to Augment Radiation-Hardness
Assurance Testing
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article
DE Emulation; fault diagnosis; radiation hardening; simulation
ID SINGLE-EVENT TRANSIENTS; SOFT-ERROR RATES; MODULAR REDUNDANCY CIRCUITS;
PHASE-LOCKED LOOPS; SET PULSE WIDTHS; SRAM-BASED FPGA; COMBINATIONAL
LOGIC; HEAVY-ION; ARCHITECTURAL VULNERABILITY; RATE PREDICTION
AB As of 2013, the gold standard for assessing radiation-hardness assurance (RHA) for a system, subsystem, or a component is accelerated radiation testing and/or pulsed laser testing. Fault injection tools, which include both fault simulation and emulation tools, have become more common in the last 15 years. Fault simulation tools use analytical methods for assessing RHA, whereas fault emulation uses hardware methods. Both fault simulation and emulation allow designers to augment traditional RHA techniques to determine whether circuit designs, microarchitectures, components, and application-specific integrated circuits (ASICs) meet the requirements for a particular mission. Fault simulation and emulation can provide the designers the luxury of testing on the benchtop without the time and financial constraints of accelerated radiation testing. This paper explores how to design, implement, and validate a fault simulation or emulation system. The paper ends with several case studies of currently used fault simulation and emulation systems.
C1 [Quinn, Heather M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Black, Dolores A.] Embry Riddle Aeronaut Univ, Albuquerque, NM 87117 USA.
[Robinson, William H.] Vanderbilt Univ, Nashville, TN 37235 USA.
[Buchner, Stephen P.] Naval Res Lab, Washington, DC 20375 USA.
RP Quinn, HM (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM hquinn@lanl.gov; black6@erau.edu; william.h.robinson@vanderbilt.edu;
stephen.buchner@nrl.navy.mil
NR 167
TC 24
Z9 24
U1 1
U2 15
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD JUN
PY 2013
VL 60
IS 3
SI SI
BP 2119
EP 2142
DI 10.1109/TNS.2013.2259503
PN 2
PG 24
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 170MU
UT WOS:000320857200026
ER
PT J
AU Taylor, K
Foster, ML
Law, JM
Centeno, JA
Fornero, E
Henderson, MS
Trager, SA
Stockelman, MG
Dorman, DC
AF Taylor, Karen
Foster, Melanie L.
Law, J. McHugh
Centeno, Jose A.
Fornero, Elisa
Henderson, M. Stephen
Trager, Sabrina A.
Stockelman, Michael G.
Dorman, David C.
TI Assessment of geographical variation in the respiratory toxicity of
desert dust particles
SO INHALATION TOXICOLOGY
LA English
DT Article
DE Cytotoxicity; dust inhalation; in vitro; in vivo; particle toxicity;
pulmonary toxicity; rat
ID OIL FLY-ASH; PULMONARY HOST-DEFENSE; NECROSIS-FACTOR-ALPHA; COPPER
SMELTER DUST; EX-VIVO PRODUCTION; AL ESKAN DISEASE; MILITARY PERSONNEL;
PARTICULATE MATTER; LUNG INJURY; AMBIENT AIR
AB The health consequences of sand particle inhalation are incompletely understood. This project evaluated the respiratory toxicity of sand particles collected at military bases near Fort Irwin USA, in Iraq (Camp Victory, Taji and Talil), and Khost Afghanistan. Our primary focus was on assessing the role of soluble metals in the respiratory toxicity of the sand particles using in vitro and in vivo methods. Replicating rat type II alveolar cell cultures (RLE-6TN) were exposed to sand extracts or vehicle control in serum-free media for <= 24 h. Cytotoxicity was determined using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay and assessment of lactate dehydrogenase leakage. The relative in vitro cytotoxicity of the sand extracts was Taji approximate to Talil > Afghanistan > Camp Victory approximate to Fort Irwin. We also assessed extracts of Camp Victory, Afghanistan, and Taji sand for acute and delayed pulmonary toxicity in rats following intratracheal administration. Assessments included biochemical analysis of bronchoalveolar lavage fluid (BALF) and lung histopathology. The in vitro cytotoxicity assay results were partially predictive of in vivo responses. The more cytotoxic Taji sand extract induced an acute irritant response in rats following intratracheal administration. Rats given the less cytotoxic Camp Victory sand extract had minimal biochemical or cytological BALF changes whereas rats given either the Afghanistan or Taji sand extracts demonstrated BALF changes that were suggestive of mild lung inflammation. Unexpectedly, we observed similar lung pathology in all extract-exposed rats. The results of our study can be used to prioritize future particle inhalation studies or guide epidemiological study design.
C1 [Taylor, Karen; Foster, Melanie L.; Law, J. McHugh; Henderson, M. Stephen; Trager, Sabrina A.; Dorman, David C.] N Carolina State Univ, Coll Vet Med, Dept Mol Biomed Sci, Raleigh, NC 27606 USA.
[Centeno, Jose A.; Fornero, Elisa] Joint Base Andrews Naval Air Facil, Malcolm Grow Med Clin, Biophys Toxicol Lab, Joint Pathol Ctr,Div Biophys Toxicol, Baltimore, MD USA.
[Stockelman, Michael G.] Naval Res Lab, Ctr Biomol Sci & Engn, Washington, DC USA.
RP Dorman, DC (reprint author), N Carolina State Univ, Coll Vet Med, 4700 Hillsborough St, Raleigh, NC 27606 USA.
EM david_dor-man@ncsu.edu
OI Foster, Melanie/0000-0001-6392-7418
FU Office of Naval Research and Global War on Terrorism; US Army Medical
Research and Material Command (USAMRMC); Military Operational Medicine
Research Program [W911QY-08-P-0473]
FX This study was sponsored and funded by the Office of Naval Research and
Global War on Terrorism, the US Army Medical Research and Material
Command (USAMRMC) and the Military Operational Medicine Research Program
(W911QY-08-P-0473). The views expressed are those of the authors and do
not reflect the official policy or position of the Department of the
Navy, Department of the Army, Department of Defense or the US
Government. Citation of commercial organizations or trade names in this
article do not constitute an official Department of the Navy or
Department of the Army endorsement or approval of the products or
services of these organizations. The authors report no conflicts of
interest. The authors alone are responsible for the content and writing
of this article.
NR 40
TC 5
Z9 5
U1 1
U2 5
PU INFORMA HEALTHCARE
PI LONDON
PA TELEPHONE HOUSE, 69-77 PAUL STREET, LONDON EC2A 4LQ, ENGLAND
SN 0895-8378
J9 INHAL TOXICOL
JI Inhal. Toxicol.
PD JUN
PY 2013
VL 25
IS 7
BP 405
EP 416
DI 10.3109/08958378.2013.797524
PG 12
WC Toxicology
SC Toxicology
GA 170NV
UT WOS:000320860300005
PM 23796017
ER
PT J
AU Chang, CP
Yang, YT
Kuo, HC
AF Chang, Chih-Pei
Yang, Yi-Ting
Kuo, Hung-Chi
TI Large Increasing Trend of Tropical Cyclone Rainfall in Taiwan and the
Roles of Terrain
SO JOURNAL OF CLIMATE
LA English
DT Article
DE Extreme events; Hurricanes; typhoons; Precipitation; Climate change;
Orographic effects; Interdecadal variability
ID TYPHOON MORAKOT 2009; CLIMATE-CHANGE
AB Taiwan, which is in the middle of one of the most active of the western North Pacific Ocean's tropical cyclone (TC) zones, experienced a dramatic increase in typhoon-related rainfall in the beginning of the twenty-first century. This record-breaking increase has led to suggestions that it is the manifestation of the effects of global warming. With rainfall significantly influenced by its steep terrain, Taiwan offers a natural laboratory to study the role that terrain effects may play in the climate change of TC rainfall. Here, it is shown that most of the recently observed large increases in typhoon-related rainfall are the result of slow-moving TCs and the location of their tracks relative to the meso--scale terrain. In addition, stronger interaction between the typhoon circulation and southwest monsoon wind surges after the typhoon center moves into the Taiwan Strait may cause a long-term trend of increasing typhoon rainfall intensity, which is not observed before the typhoon center exits Taiwan. The variation in the location of the track cannot be related to the effects of global warming on western North Pacific TC tracks reported in the literature. The weaker steering flow and the stronger monsoon-TC interaction are consistent with the recently discovered multidecadal trend of intensifying subtropical monsoon and tropical circulations, which is contrary to some theoretical and model projections of global warming. There is also no evidence of a positive feedback between global warming-related water vapor supply and TC intensity, as the number of strong landfalling TCs has decreased significantly since 1960 and the recent heavy rainfall typhoons are all of weak-to-medium intensity.
C1 [Chang, Chih-Pei; Yang, Yi-Ting; Kuo, Hung-Chi] Natl Taiwan Univ, Dept Atmospher Sci, Taipei 10617, Taiwan.
[Chang, Chih-Pei] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA.
RP Chang, CP (reprint author), Natl Taiwan Univ, Dept Atmospher Sci, Taipei 10617, Taiwan.
EM cpchang@nps.edu
OI KUO, HUNG-CHI/0000-0001-9102-5104
FU National Science Council (NSC), Taipei, Taiwan [NSC 101-2111-M-002-010]
FX This research is sponsored by National Science Council (NSC), Taipei,
Taiwan, under Grants NSC 101-2111-M-002-010. We thank Dr. Yongui Lei for
discussions of the statistical tests and Professor Russ Elsberry for
reading the manuscript. Three anonymous reviewers made valuable
suggestions to improve the clarity of the analysis and description.
NR 23
TC 9
Z9 9
U1 2
U2 18
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0894-8755
J9 J CLIMATE
JI J. Clim.
PD JUN
PY 2013
VL 26
IS 12
BP 4138
EP 4147
DI 10.1175/JCLI-D-12-00463.1
PG 10
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 170WI
UT WOS:000320885300011
ER
PT J
AU Martetschlaeger, F
Gaskill, TR
Millett, PJ
AF Martetschlaeger, Frank
Gaskill, Trevor R.
Millett, Peter J.
TI Management of clavicle nonunion and malunion
SO JOURNAL OF SHOULDER AND ELBOW SURGERY
LA English
DT Review
DE Clavicle fracture; clavicle nonunion; clavicle malunion; bone grafting;
clavicle shortening
ID COMPRESSION PLATE FIXATION; BONE-GRAFT; NONOPERATIVE TREATMENT; OUTCOME
ASSESSMENT; INTERNAL-FIXATION; MIDDLE 3RD; FRACTURES; MIDSHAFT;
RECONSTRUCTION; EPIDEMIOLOGY
AB Background: Clavicle fractures are common injuries of the shoulder girdle and occasionally result in nonunion or symptomatic malunion. When present, these chronic injuries can result in considerable shoulder dysfunction. A number of surgical techniques have been described for the management of these injuries. Current literature suggests that supplemental bone grafting may not be necessary in all cases but should be considered in the setting of atrophic nonunion. However, optimal treatment is controversial, as discussed in the literature. This article highlights the current treatment options based on the existing literature and describes our preferred techniques.
Methods: We carried out a comprehensive review of the PubMed and Medline databases using multiple-keywords (eg, clavicle fracture, clavicle nonunion, and clavicle malunion) to identify the relevant literature regarding this topic. Reference lists of the relevant articles were reviewed for additional important articles.
Conclusion: Nonunion and malunion of the clavicle remain challenging problems. Reliable bony union and improved shoulder function can be expected with thoughtful surgical planning, appropriate implant choice, and meticulous surgical technique.
Level of evidence: Narrative Review. (C) 2013 Journal of Shoulder and Elbow Surgery Board of Trustees.
C1 [Martetschlaeger, Frank] Tech Univ Munich, Hosp Rechts Isar, Dept Orthopaed Sports Med, D-80290 Munich, Germany.
[Martetschlaeger, Frank; Millett, Peter J.] Steadman Philippon Res Inst, Steadman Clin, Vail, CO 81657 USA.
[Gaskill, Trevor R.] USN, Med Ctr Portsmouth, Bone & Joint Sports Med Inst, Portsmouth, VA USA.
RP Millett, PJ (reprint author), Steadman Philippon Res Inst, 181 West Meadow Dr,Suite 1000, Vail, CO 81657 USA.
EM drmillett@thesteadmanclinic.com
FU Steadman Philippon Research Institute; Smith & Nephew Endoscopy;
Arthrex; Siemens; OrthoRehab; Ossur Americas
FX This research was supported by the Steadman Philippon Research
Institute, which is a 501(c)3 nonprofit institution supported
financially by private donations and corporate support from the
following entities: Smith & Nephew Endoscopy, Arthrex, Siemens,
OrthoRehab, and Ossur Americas. This work was not supported directly by
outside funding or grants.
NR 66
TC 9
Z9 10
U1 2
U2 9
PU MOSBY-ELSEVIER
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1058-2746
J9 J SHOULDER ELB SURG
JI J. Shoulder Elbow Surg.
PD JUN
PY 2013
VL 22
IS 6
BP 862
EP 868
DI 10.1016/j.jse.2013.01.022
PG 7
WC Orthopedics; Sport Sciences; Surgery
SC Orthopedics; Sport Sciences; Surgery
GA 172IP
UT WOS:000320995800028
PM 23562292
ER
PT J
AU Kruse, FA
Perry, SL
AF Kruse, Fred A.
Perry, Sandra L.
TI Mineral Mapping Using Simulated Worldview-3 Short-Wave-Infrared Imagery
SO REMOTE SENSING
LA English
DT Article
DE Worldview-3; sensor simulation; SWIR multispectral imaging; mineral
mapping
ID SPACEBORNE THERMAL EMISSION; REFLECTION RADIOMETER ASTER; IMAGING
SPECTROMETER; ALTERED ROCKS; CUPRITE; NEVADA
AB WorldView commercial imaging satellites comprise a constellation developed by DigitalGlobe Inc. (Longmont, CO, USA). Worldview-3 (WV-3), currently planned for launch in 2014, will have 8 spectral bands in the Visible and Near-Infrared (VNIR), and an additional 8 bands in the Short-Wave-Infrared (SWIR); the approximately 1.0-2.5 mu m spectral range. WV-3 will be the first commercial system with both high spatial resolution and multispectral SWIR capability. Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) data collected at 3 m spatial resolution with 86 SWIR bands having 10 nm spectral resolution were used to simulate the new WV-3 SWIR data. AVIRIS data were converted to reflectance, geographically registered, and resized to the proposed 3.7 and 7.5 m spatial resolutions. WV-3 SWIR band pass functions were used to spectrally resample the data to the proposed 8 SWIR bands. Characteristic reflectance signatures extracted from the data for known mineral locations (endmembers) were used to map spatial locations of specific minerals. The WV-3 results, when compared to spectral mapping using the full AVIRIS SWIR dataset, illustrate that the WV-3 spectral bands should permit identification and mapping of some key minerals, however, minerals with similar spectral features may be confused and will not be mapped with the same detail as using hyperspectral systems. The high spatial resolution should provide detailed mapping of complex alteration mineral patterns not achievable by current multispectral systems. The WV-3 simulation results are promising and indicate that this sensor will be a significant tool for geologic remote sensing.
C1 [Kruse, Fred A.] USN, Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
[Kruse, Fred A.] USN, Postgrad Sch, Ctr Remote Sensing, Monterey, CA 93943 USA.
[Perry, Sandra L.] Perry Remote Sensing LLC, Denver, CO 80231 USA.
RP Kruse, FA (reprint author), USN, Postgrad Sch, Dept Phys, 833 Dyer Rd, Monterey, CA 93943 USA.
EM fakruse@nps.edu; sandyp@rm.incc.net
NR 20
TC 19
Z9 20
U1 0
U2 29
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 2072-4292
J9 REMOTE SENS-BASEL
JI Remote Sens.
PD JUN
PY 2013
VL 5
IS 6
BP 2688
EP 2703
DI 10.3390/rs5062688
PG 16
WC Remote Sensing
SC Remote Sensing
GA 169HP
UT WOS:000320771100006
ER
PT J
AU Ross, EM
Matteucci, MJ
Shepherd, M
Barker, M
Orr, L
AF Ross, Elliot M.
Matteucci, Michael J.
Shepherd, Matthew
Barker, Matthew
Orr, Lance
TI Measuring Arterial Oxygenation in a High Altitude Field Environment:
Comparing Portable Pulse Oximetry With Blood Gas Analysis
SO WILDERNESS & ENVIRONMENTAL MEDICINE
LA English
DT Article
DE pulse oximeters; arterial blood gas; ABG; mountain environment; high
altitude; cold weather
ID ACUTE MOUNTAIN-SICKNESS; POTENTIAL ERRORS; SATURATION
AB Objective.-High altitude environments present unique medical treatment challenges. Medical providers often use small portable pulse oximetry devices to help guide their clinical decision making. A significant body of high altitude research is based on the use of these devices to monitor hypoxia, yet there is a paucity of evidence that these devices are accurate in these environments. We studied whether these devices perform accurately and reliably under true mountain conditions.
Methods.-Healthy unacclimatized active-duty military volunteers participating in mountain warfare training at 2100 in (6900 feet) above sea level were evaluated with several different pulse oximetry devices while in a cold weather, high altitude field environment and then had arterial blood gases (ABG) drawn using an i-STAT for comparison. The pulse o)dmeter readings were compared with the gold standard ABG readings.
Results.-A total of 49 individuals completed the study. There was no statistically significant difference between any of the devices and the gold standard of ABG. The best performing device was the PalmSAT (PS) 8000SM finger probe with a mean difference of 2.17% and SD of 2.56 (95% CI, 1.42% to 2.92%). In decreasing order of performance were the PS 8000AA finger probe (mean SD, 2.54%+/- 2.68%; 95% CI, 1.76% to 3.32%), the PS 8000Q ear probe (2.47%+/- 4.36%; 95% CI, 1.21% to 3.75%), the Nonin Onyx 9500 (3.29%+/- 3.12%; 95% CI, 2.39% to 4.20%), and finally the PS 8000R forehead reflectance sensor (5.15%+/- 2.97%; 95% CI, 4.28% to 6.01%).
Conclusions.-Based on the results of this study, results of the newer portable pulse oximeters appear to be closely correlated to that of the ABG measurements when tested in true mountain conditions.
C1 [Ross, Elliot M.; Matteucci, Michael J.; Shepherd, Matthew; Barker, Matthew; Orr, Lance] USN, San Diego Med Ctr, Dept Emergency Med, San Diego, CA 92134 USA.
RP Ross, EM (reprint author), USN, San Diego Med Ctr, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
EM s5eross@yahoo.com
NR 22
TC 2
Z9 3
U1 0
U2 7
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1080-6032
J9 WILD ENVIRON MED
JI Wildern. Environ. Med.
PD SUM
PY 2013
VL 24
IS 2
BP 112
EP 117
PG 6
WC Public, Environmental & Occupational Health; Sport Sciences
SC Public, Environmental & Occupational Health; Sport Sciences
GA 162UB
UT WOS:000320290400004
PM 23434169
ER
PT J
AU Kersten, W
Khawam, J
Spinler, S
AF Kersten, Wolfgang
Khawam, John
Spinler, Stefan
TI Decision Sciences Journal - Call for Papers Focused Issue on "The
Interaction of Product Modularity and Supply Chain Management"
SO DECISION SCIENCES
LA English
DT Editorial Material
C1 [Kersten, Wolfgang] Hamburg Univ Technol, Hamburg, Germany.
[Khawam, John] Naval Postgrad Sch, Monterey, CA USA.
[Spinler, Stefan] WHU Otto Beisheim Sch Management, Vallendar, Germany.
RP Kersten, W (reprint author), Hamburg Univ Technol, Hamburg, Germany.
NR 0
TC 0
Z9 0
U1 2
U2 9
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0011-7315
J9 DECISION SCI
JI Decis. Sci.
PD JUN
PY 2013
VL 44
IS 3
BP 611
EP 612
DI 10.1111/deci.12025
PG 2
WC Management
SC Business & Economics
GA 168SB
UT WOS:000320724900007
ER
PT J
AU Sylvia, JE
Hull, AJ
AF Sylvia, Jaclyn E.
Hull, Andrew J.
TI A Dynamic Model of a Reinforced Thin Plate with Ribs of Finite Width
SO INTERNATIONAL JOURNAL OF ACOUSTICS AND VIBRATION
LA English
DT Article
ID FLUID-LOADED PLATES; ACOUSTIC SCATTERING; STIFFENED PLATE; SUBMERGED
PLATE; LINE
AB This paper derives an analytical model of a thin plate of infinite extent stiffened by ribs that have a finite width. The governing model of the plate is the one-dimensional flexural wave equation, and the ribs were modelled as translational springs. The plate was excited by an external load that is harmonic in time and space. An orthogonalization procedure was developed, and the resulting system equations are an infinite set of algebraic equations containing a diagonal matrix that represents the plate dynamics and a full matrix that contains permutations of the Fourier coefficients of the Heaviside step function that represent the rib forces. This matrix equation is truncated and inverted and yields a solution of the plate displacements. An example problem is formulated, and the resulting displacement field is compared to a solution generated using finite element analysis for validation of the solution method. The system stop- and pass-band behaviour as a function of rib width is illustrated. It is shown that an increase in the width of the ribs results in greater stop-band behaviour of the system.
C1 [Sylvia, Jaclyn E.; Hull, Andrew J.] Naval Undersea Warfare Ctr, Newport, RI USA.
RP Sylvia, JE (reprint author), Naval Undersea Warfare Ctr, Newport, RI USA.
FU Naval Undersea Warfare Center's In-House Laboratory Independent Research
Program; Office of Naval Research Naval Research Enterprise Intern
Program
FX This paper was funded by the Naval Undersea Warfare Center's In-House
Laboratory Independent Research Program, Program Manager Dr. Anthony A.
Ruffa. Jaclyn E. Sylvia was funded by the Office of Naval Research Naval
Research Enterprise Intern Program.
NR 9
TC 6
Z9 6
U1 0
U2 3
PU INT INST ACOUSTICS & VIBRATION
PI AUBURN
PA AUBURN UNIV, MECHANICAL ENGINEERING DEPT, 270 ROSS HALL, AUBURN, AL
36849 USA
SN 1027-5851
J9 INT J ACOUST VIB
JI Int. J. Acoust. Vib.
PD JUN
PY 2013
VL 18
IS 2
BP 86
EP 90
PG 5
WC Acoustics; Engineering, Mechanical; Mechanics
SC Acoustics; Engineering; Mechanics
GA 170EW
UT WOS:000320834200005
ER
PT J
AU Rath, BB
Pande, CS
AF Rath, B. B.
Pande, C. S.
TI Recovery of low-temperature flow stress in zone-refined aluminum single
crystals
SO ACTA MATERIALIA
LA English
DT Article
DE Recovery; Kinetics; Aluminum; Deformation
ID SUBGRAIN GROWTH; RECRYSTALLIZATION; MIGRATION; IRON
AB The recovery of flow stress in zone-refined aluminum single crystals, deformed at -196 degrees C in uniaxial tension along the < 1 1 1 > direction, has been measured at temperatures between 0 and 200 degrees C after straining to flow stresses ranging from 7 to 30 ksi (48-207 MPa). The corresponding strains ranged from 1.2 x 10(-2) to 13.1 x 10(-2). The effects of pre-stress and recovery temperature on structure and flow stress after recovery were systematically evaluated. The measured activation energy for recovery was found to increase linearly with the extent of recovery. The flow stress after recovery is found to be proportional to the reciprocal of the square root of the cell diameter. These results are used to provide, in a self-consistent manner, a new model for the recovery process. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
C1 [Rath, B. B.; Pande, C. S.] USN, Res Lab, Washington, DC 20375 USA.
RP Rath, BB (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM Bhakta.Rath@nrl.navy.mil
NR 31
TC 0
Z9 0
U1 1
U2 7
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
J9 ACTA MATER
JI Acta Mater.
PD JUN
PY 2013
VL 61
IS 10
BP 3735
EP 3743
DI 10.1016/j.actamat.2013.02.056
PG 9
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 149FM
UT WOS:000319304400018
ER
PT J
AU Nepal, N
Wheeler, VD
Anderson, TJ
Kub, FJ
Mastro, MA
Myers-Ward, RL
Qadri, SB
Freitas, JA
Hernandez, SC
Nyakiti, LO
Walton, SG
Gaskill, K
Eddy, CR
AF Nepal, Neeraj
Wheeler, Virginia D.
Anderson, Travis J.
Kub, Francis J.
Mastro, Michael A.
Myers-Ward, Rachael L.
Qadri, Syed B.
Freitas, Jaime A.
Hernandez, Sandra C.
Nyakiti, Luke O.
Walton, Scott G.
Gaskill, Kurt
Eddy, Charles R., Jr.
TI Epitaxial Growth of III-Nitride/Graphene Heterostructures for Electronic
Devices
SO APPLIED PHYSICS EXPRESS
LA English
DT Article
ID DEPOSITION; GRAPHENE; GAN; LAYERS
AB Epitaxial GaN films were grown by metal organic chemical vapor deposition (MOCVD) on functionalized epitaxial graphene (EG) using a thin (similar to 11 nm) conformal AlN nucleation layer. Raman measurements show a graphene 2D peak at 2719 cm(-1) after GaN growth. X-ray diffraction analysis reveals [0001]-oriented hexagonal GaN with (0002) peak rocking curve full width at the half maximum (FWHM) of 544 arcsec. The FWHM values are similar to reported values for GaN grown by MOCVD on sapphire. The GaN layer has a strong room-temperature photoluminescence band edge emission. Successful demonstration of GaN growth on EG opens up the possibility of III-nitride/graphene heterostructure-based electronic devices and promises improved performance. (C) 2013 The Japan Society of Applied Physics
C1 [Nepal, Neeraj; Wheeler, Virginia D.; Anderson, Travis J.; Kub, Francis J.; Mastro, Michael A.; Myers-Ward, Rachael L.; Freitas, Jaime A.; Nyakiti, Luke O.; Gaskill, Kurt; Eddy, Charles R., Jr.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[Qadri, Syed B.] USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
[Hernandez, Sandra C.; Walton, Scott G.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Nepal, N (reprint author), USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RI Hernandez, Sandra/C-6724-2013
FU American Society for Engineering Education-Naval Research Laboratory
postdoctoral fellowship program; National Research Council; Office of
Naval Research
FX NN and LON would like to acknowledge the support of the American Society
for Engineering Education-Naval Research Laboratory postdoctoral
fellowship program. SCH appreciates the support of the National Research
Council. This work was supported by the Office of Naval Research.
NR 17
TC 13
Z9 13
U1 7
U2 123
PU JAPAN SOC APPLIED PHYSICS
PI TOKYO
PA KUDAN-KITA BUILDING 5TH FLOOR, 1-12-3 KUDAN-KITA, CHIYODA-KU, TOKYO,
102-0073, JAPAN
SN 1882-0778
J9 APPL PHYS EXPRESS
JI Appl. Phys. Express
PD JUN
PY 2013
VL 6
IS 6
AR 061003
DI 10.7567/APEX.6.061003
PG 4
WC Physics, Applied
SC Physics
GA 161BY
UT WOS:000320167300003
ER
PT J
AU Breton, RP
van Kerkwijk, MH
Roberts, MSE
Hessels, JWT
Camilo, F
McLaughlin, MA
Ransom, SM
Ray, PS
Stairs, IH
AF Breton, R. P.
van Kerkwijk, M. H.
Roberts, M. S. E.
Hessels, J. W. T.
Camilo, F.
McLaughlin, M. A.
Ransom, S. M.
Ray, P. S.
Stairs, I. H.
TI DISCOVERY OF THE OPTICAL COUNTERPARTS TO FOUR ENERGETIC FERMI
MILLISECOND PULSARS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE binaries: general; pulsars: general; pulsars: individual (PSRs
J1810+1744, J0023+0923, J2215+5135, J22561024, B1920+57, J1023+0038)
ID BINARY PSR B1957+20; ECLIPSING BINARY; NEUTRON-STAR; LIGHT-CURVE;
COMPANION; RADIO; TELESCOPE; EVOLUTION; MASS; VARIABILITY
AB In the last few years, over 43 millisecond radio pulsars have been discovered by targeted searches of unidentified gamma-ray sources found by the Fermi Gamma-Ray Space Telescope. A large fraction of these millisecond pulsars are in compact binaries with low-mass companions. These systems often show eclipses of the pulsar signal and are commonly known as black widows and redbacks because the pulsar is gradually destroying its companion. In this paper, we report on the optical discovery of four strongly irradiated millisecond pulsar companions. All four sources show modulations of their color and luminosity at the known orbital periods from radio timing. Light curve modeling of our exploratory data shows that the equilibrium temperature reached on the companion's dayside with respect to their nightside is consistent with about 10%-30% of the available spin-down energy from the pulsar being reprocessed to increase the companion's dayside temperature. This value compares well with the range observed in other irradiated pulsar binaries and offers insights about the energetics of the pulsarwind and the production of gamma-ray emission. In addition, this provides a simple way of estimating the brightness of irradiated pulsar companions given the pulsar spin-down luminosity. Our analysis also suggests that two of the four new irradiated pulsar companions are only partially filling their Roche lobe. Some of these sources are relatively bright and represent good targets for spectroscopic follow-up. These measurements could enable, among other things, mass determination of the neutron stars in these systems.
C1 [Breton, R. P.] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.
[Breton, R. P.; van Kerkwijk, M. H.] Univ Toronto, Dept Astron & Astrophys, Toronto, ON M5S 3H4, Canada.
[Roberts, M. S. E.] Eureka Sci Inc, Oakland, CA 94602 USA.
[Roberts, M. S. E.] Ithaca Coll, Ithaca, NY 14850 USA.
[Hessels, J. W. T.] Netherlands Inst Radio Astron, ASTRON, NL-7990 AA Dwingeloo, Netherlands.
[Hessels, J. W. T.] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 XH Amsterdam, Netherlands.
[Camilo, F.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Camilo, F.] Arecibo Observ, Arecibo, PR 00612 USA.
[McLaughlin, M. A.] W Virginia Univ, Dept Phys, Morgantown, WV 26506 USA.
[McLaughlin, M. A.; Ransom, S. M.] Natl Radio Astron Observ, Charlottesville, VA 22903 USA.
[Ray, P. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Stairs, I. H.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada.
RP Breton, RP (reprint author), Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.
EM r.breton@soton.ac.uk
RI Breton, Rene/A-5536-2017;
OI Breton, Rene/0000-0001-8522-4983; Roberts, Mallory/0000-0002-9396-9720;
Ransom, Scott/0000-0001-5799-9714; Ray, Paul/0000-0002-5297-5278
FU NSERC; NASA
FX J.W.T.H. is a Veni Fellow of the Netherlands Foundation for Scientific
Research (NWO). Pulsar research at UBC and UofT is supported by NSERC
Discovery Grants. This work was partially supported by the NASA Fermi
Guest Observer Program. Based on observations obtained at the Gemini
Observatory, which is operated by the Association of Universities for
Research in Astronomy, Inc., under a cooperative agreement with the NSF
on behalf of the Gemini partnership: the National Science Foundation
(United States), the Science and Technology Facilities Council (United
Kingdom), the National Research Council (Canada), CONICYT (Chile), the
Australian Research Council (Australia), Ministerio da Ciencia,
Tecnologia e Inovacao (Brazil), and Ministerio de Ciencia, Tecnologia e
Innovacion Productiva (Argentina). The National Radio Astronomy
Observatory is a facility of the National Science Foundation operated
under cooperative agreement by Associated Universities, Inc.
NR 52
TC 41
Z9 41
U1 0
U2 2
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 JUN 1
PY 2013
VL 769
IS 2
AR UNSP 108
DI 10.1088/0004-637X/769/2/108
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 158UM
UT WOS:000319999100024
ER
PT J
AU Cenko, SB
Kulkarni, SR
Horesh, A
Corsi, A
Fox, DB
Carpenter, J
Frail, DA
Nugent, PE
Perley, DA
Gruber, D
Gal-Yam, A
Groot, PJ
Hallinan, G
Ofek, EO
Rau, A
MacLeod, CL
Miller, AA
Bloom, JS
Filippenko, AV
Kasliwal, MM
Law, NM
Morgan, AN
Polishook, D
Poznanski, D
Quimby, RM
Sesar, B
Shen, KJ
Silverman, JM
Sternberg, A
AF Cenko, S. Bradley
Kulkarni, S. R.
Horesh, Assaf
Corsi, Alessandra
Fox, Derek B.
Carpenter, John
Frail, Dale A.
Nugent, Peter E.
Perley, Daniel A.
Gruber, D.
Gal-Yam, Avishay
Groot, Paul J.
Hallinan, G.
Ofek, Eran O.
Rau, Arne
MacLeod, Chelsea L.
Miller, Adam A.
Bloom, Joshua S.
Filippenko, Alexei V.
Kasliwal, Mansi M.
Law, Nicholas M.
Morgan, Adam N.
Polishook, David
Poznanski, Dovi
Quimby, Robert M.
Sesar, Branimir
Shen, Ken J.
Silverman, Jeffrey M.
Sternberg, Assaf
TI DISCOVERY OF A COSMOLOGICAL, RELATIVISTIC OUTBURST VIA ITS RAPIDLY
FADING OPTICAL EMISSION
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE gamma-ray burst: general; stars: flare; supernovae: general
ID GAMMA-RAY BURST; SIMULTANEOUS MULTIWAVELENGTH OBSERVATIONS; TRANSIENT
XTE J1118+480; BLACK-HOLE BINARIES; X-RAY; RADIO-EMISSION; ORPHAN
AFTERGLOWS; LIGHT CURVES; H-ALPHA; L-DWARF
AB We report the discovery by the Palomar Transient Factory (PTF) of the transient source PTF11agg, which is distinguished by three primary characteristics: (1) bright (R-peak = 18.3mag), rapidly fading (Delta R = 4mag in Delta t = 2 days) optical transient emission; (2) a faint (R = 26.2 +/- 0.2mag), blue (g' - R = 0.17 +/- 0.29 mag) quiescent optical counterpart; and (3) an associated year-long, scintillating radio transient. We argue that these observed properties are inconsistent with any known class of Galactic transients (flare stars, X-ray binaries, dwarf novae), and instead suggest a cosmological origin. The detection of incoherent radio emission at such distances implies a large emitting region, from which we infer the presence of relativistic ejecta. The observed properties are all consistent with the population of long-duration gamma-ray bursts (GRBs), marking the first time such an outburst has been discovered in the distant universe independent of a high-energy trigger. We searched for possible high-energy counterparts to PTF11agg, but found no evidence for associated prompt emission. We therefore consider three possible scenarios to account for a GRB-like afterglow without a high-energy counterpart: an "untriggered" GRB (lack of satellite coverage), an "orphan" afterglow (viewing-angle effects), and a "dirty fireball" (suppressed high-energy emission). The observed optical and radio light curves appear inconsistent with even the most basic predictions for off-axis afterglow models. The simplest explanation, then, is that PTF11agg is a normal, on-axis long-duration GRB for which the associated high-energy emission was simply missed. However, we have calculated the likelihood of such a serendipitous discovery by PTF and find that it is quite small (approximate to 2.6%). While not definitive, we nonetheless speculate that PTF11agg may represent a new, more common (>4 times the on-axis GRB rate at 90% confidence) class of relativistic outbursts lacking associated high-energy emission. If so, such sources will be uncovered in large numbers by future wide-field optical and radio transient surveys.
C1 [Cenko, S. Bradley; Nugent, Peter E.; Miller, Adam A.; Bloom, Joshua S.; Filippenko, Alexei V.; Morgan, Adam N.; Shen, Ken J.; Silverman, Jeffrey M.] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA.
[Kulkarni, S. R.; Horesh, Assaf; Carpenter, John; Perley, Daniel A.; Groot, Paul J.; Hallinan, G.; Sesar, Branimir] CALTECH, Cahill Ctr Astrophys, Pasadena, CA 91125 USA.
[Corsi, Alessandra] CALTECH, LIGO Lab, Pasadena, CA 91125 USA.
[Corsi, Alessandra] George Washington Univ, Dept Phys, Washington, DC 20052 USA.
[Fox, Derek B.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Frail, Dale A.] Natl Radio Astron Observ, Socorro, NM 87801 USA.
[Nugent, Peter E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Gruber, D.; Rau, Arne] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Gal-Yam, Avishay; Ofek, Eran O.] Weizmann Inst Sci, Benoziyo Ctr Astrophys, IL-76100 Rehovot, Israel.
[Groot, Paul J.] Radboud Univ Nijmegen, Dept Astrophys IMAPP, NL-6500 GL Nijmegen, Netherlands.
[MacLeod, Chelsea L.] USN Acad, Dept Phys, Annapolis, MD 21402 USA.
[Kasliwal, Mansi M.] Observ Carnegie Inst Sci, Pasadena, CA 91101 USA.
[Law, Nicholas M.] Univ Toronto, Dunlap Inst Astron & Astrophys, Toronto, ON M5S 3H4, Canada.
[Polishook, David] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA.
[Poznanski, Dovi] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
[Quimby, Robert M.] Univ Tokyo, Kavli IPMU, Kashiwa, Chiba 2778583, Japan.
[Silverman, Jeffrey M.] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA.
[Sternberg, Assaf] Max Planck Inst Astrophys, D-85741 Garching, Germany.
RP Cenko, SB (reprint author), Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA.
EM cenko@astro.berkeley.edu
RI Groot, Paul/K-4391-2016; Horesh, Assaf/O-9873-2016
OI Groot, Paul/0000-0002-4488-726X; Horesh, Assaf/0000-0002-5936-1156
FU Gary and Cynthia Bengier; Richard and Rhoda Goldman Fund; Christopher R.
Redlich Fund; NASA/Swift [NNX10AI21G, NNX12AD73G]; TABASGO Foundation;
NSF [AST-1211916, PHY-0757058, CDI-0941742]; LIGO; Massachusetts
Institute of Technology; NASA [HST-HF-51296.01-A, NAS 5-26555]; Space
Telescope Science Institute; ISF; BSF; GIF; EU/FP7 via an ERC; Kimmel
Award; Caltech; Israeli Ministry of Science; NSF Graduate Research
Fellowship Program; Minerva Fellowship; Hubble Fellowship;
Carnegie-Princeton Fellowship
FX A.V.F. and his group acknowledge generous financial assistance from Gary
and Cynthia Bengier, the Richard and Rhoda Goldman Fund, the Christopher
R. Redlich Fund, NASA/Swift grants NNX10AI21G and NNX12AD73G, the
TABASGO Foundation, and NSF grant AST-1211916. A. C. acknowledges
support from LIGO, which was constructed by the California Institute of
Technology and the Massachusetts Institute of Technology with funding
from the NSF and operates under cooperative agreement PHY-0757058. D. A.
P. is supported by NASA through Hubble Fellowship grant
HST-HF-51296.01-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. Research by
A.G.Y. and his team is supported by grants from the ISF, BSF, GIF, the
EU/FP7 via an ERC grant, and a Kimmel Award. P.J.G. acknowledges support
from Caltech during his 2011 sabbatical stay. E.O.O. is incumbent of the
Arye Dissentshik career development chair and is grateful to support by
a grant from the Israeli Ministry of Science. A. A. M. is supported by
the NSF Graduate Research Fellowship Program. J.S.B. acknowledges NSF
grant CDI-0941742. D. P. is grateful for the AXA research fund. A. S. is
supported by a Minerva Fellowship. M. M. K. acknowledges generous
support from the Hubble Fellowship and Carnegie-Princeton Fellowship.
NR 157
TC 26
Z9 26
U1 0
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 1
PY 2013
VL 769
IS 2
AR 130
DI 10.1088/0004-637X/769/2/130
PG 16
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 158UM
UT WOS:000319999100046
ER
PT J
AU Kahler, SW
Vourlidas, A
AF Kahler, S. W.
Vourlidas, A.
TI A COMPARISON OF THE INTENSITIES AND ENERGIES OF GRADUAL SOLAR ENERGETIC
PARTICLE EVENTS WITH THE DYNAMICAL PROPERTIES OF ASSOCIATED CORONAL MASS
EJECTIONS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE acceleration of particles; Sun: coronal mass ejections (CMEs); Sun:
flares; Sun: particle emission
ID LARGE SEP EVENTS; INTERPLANETARY SHOCKS; SOHO OBSERVATIONS; PEAK
INTENSITIES; DRIVEN SHOCKS; ACCELERATION; HELIOSPHERE; STEREO;
EFFICIENT; SPECTRA
AB Gradual solar energetic particle (SEP) events observed at 1 AU are produced by shocks driven by coronal mass ejections (CMEs). Characterizations of the remotely imaged CMEs and of their associated SEP events observed in situ can be used to increase our ability to forecast SEP events and to understand better the physical connections between the two phenomena. We carry out a statistical comparison of the peak intensities Ip20, of 120 western-hemisphere 20 MeV SEP events with those of their associated CMEs observed by the Solar and Heliospheric Observatory/Large Angle and Spectrometric Coronagraph over the past solar cycle. For a subset of 96 events observed with the EPACT instrument on the Wind spacecraft we also compare the SEP 2 MeV peak intensities Ip2, power-law energy spectral exponents gamma, total SEP energies Esep, and 2 MeV nuc(-1) H/He ratios with CME properties. New analyses of white-light CME images enable us to improve calculations of the CME masses and potential energies and then to determine two values of their kinetic energies based on frontal V (fr) and center-of-mass V (cm) speeds. Despite considerable scatter in the SEP and CME data, the large dynamical ranges of both the SEP and CME parameters allow us to determine statistical trends in the comparisons of the logs of the parameters. Ip2, Ip20, and Esep are significantly correlated with CME kinetic energies, masses, and speeds, while gamma trends lower (harder). Those correlations are higher with V (fr) than with V (cm) parameters, indicating a less significant role for the body of the CME than for the CME front in SEP production. The high ratios (>= 10%) of Esep to CME energies found by Mewaldt et al. are confirmed, and the fits are consistent with a linear relationship between the two energies. The 2 MeV nuc(-1) H/He ratios decrease with increasing CME speeds, which may be an effect of shock geometry. We discuss several factors that limit the estimates of both the SEP and CME energies.
C1 [Kahler, S. W.] USAF, Res Lab, Space Vehicles Directorate, Kirtland AFB, NM 87117 USA.
[Vourlidas, A.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Kahler, SW (reprint author), USAF, Res Lab, Space Vehicles Directorate, 3550 Aberdeen Ave, Kirtland AFB, NM 87117 USA.
EM AFRL.RVB.PA@kirtland.af.mil
RI Vourlidas, Angelos/C-8231-2009
OI Vourlidas, Angelos/0000-0002-8164-5948
FU AFOSR Task [2301RDZ4]; NASA LWS TRT program
FX S. K. was funded by AFOSR Task 2301RDZ4. A. V. was supported by the NASA
LWS TR&T program. We thank the reviewer for useful comments on the
manuscript. CME data were taken from the CDAWLASCO catalog. This CME
catalog is generated and maintained at the CDAW Data Center by NASA and
The Catholic University of America in cooperation with the Naval
Research Laboratory. SOHO is a project of international cooperation
between ESA and NASA.
NR 69
TC 11
Z9 11
U1 0
U2 4
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 JUN 1
PY 2013
VL 769
IS 2
AR UNSP 143
DI 10.1088/0004-637X/769/2/143
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 158UM
UT WOS:000319999100059
ER
PT J
AU van Weeren, RJ
Fogarty, K
Jones, C
Forman, WR
Clarke, TE
Bruggen, M
Kraft, RP
Lal, DV
Murray, SS
Rottgering, HJA
AF van Weeren, R. J.
Fogarty, K.
Jones, C.
Forman, W. R.
Clarke, T. E.
Brueggen, M.
Kraft, R. P.
Lal, D. V.
Murray, S. S.
Rottgering, H. J. A.
TI COMPLEX DIFFUSE RADIO EMISSION IN THE MERGING PLANCK ESZ CLUSTER A3411
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: clusters: individual (A3411); galaxies: clusters: intracluster
medium; large-scale structure of universe; radiation mechanisms:
non-thermal; X-rays: galaxies: clusters
ID X-RAY-EMISSION; GALAXY CLUSTERS; PARTICLE-ACCELERATION; SHOCK
ACCELERATION; COMA CLUSTER; COSMIC-RAYS; COSMOLOGICAL SIMULATIONS;
DARK-MATTER; ABELL 2146; ASTROPHYSICAL SHOCKS
AB We present Very Large Array (VLA) radio and Chandra X-ray observations of the merging galaxy cluster A3411. For the cluster, we find an overall temperature of 6.4(-1.0)(+0.6) keV and an X-ray luminosity of 2.8 +/- 0.1 x 10(44) erg s(-1) between 0.5 and 2.0 keV. The Chandra observation reveals the cluster to be undergoing a merger event. The VLA observations show the presence of large-scale diffuse emission in the central region of the cluster, which we classify as a 0.9 Mpc size radio halo. In addition, a complex region of diffuse, polarized emission is found in the southeastern outskirts of the cluster along the projected merger axis of the system. We classify this region of diffuse emission as a radio relic. The total extent of this radio relic is 1.9 Mpc. For the combined emission in the cluster region, we find a radio spectral index of -1.0 +/- 0.1 between 74 MHz and 1.4 GHz. The morphology of the radio relic is peculiar, as the relic is broken up into five fragments. This suggests that the shock responsible for the relic has been broken up due to interaction with a large-scale galaxy filament connected to the cluster or other substructures in the intracluster medium. Alternatively, the complex morphology reflects the presence of electrons in fossil radio bubbles that are re-accelerated by a shock.
C1 [van Weeren, R. J.; Fogarty, K.; Jones, C.; Forman, W. R.; Kraft, R. P.; Murray, S. S.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Fogarty, K.; Murray, S. S.] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
[Clarke, T. E.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Brueggen, M.] Hamburger Sternwarte, D-21029 Hamburg, Germany.
[Lal, D. V.] TIFR, Natl Ctr Radio Astrophys, Pune 411007, Maharashtra, India.
[Rottgering, H. J. A.] Leiden Univ, Leiden Observ, NL-2300 RA Leiden, Netherlands.
RP van Weeren, RJ (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
EM rvanweeren@cfa.harvard.edu
OI van Weeren, Reinout/0000-0002-0587-1660; Forman,
William/0000-0002-9478-1682
FU NASA [PF2-130104, NAS8-03060]; Chandra X-ray Center; 6.1 Base funds; ESO
Telescopes at the La Silla or Paranal Observatory under programme
[070.B-0440(A)]; National Aeronautics and Space Administration; National
Science Foundation; Space Telescope Science Institute under U.S.
Government [NAG W-2166]; National Geographic Society; Sloan Foundation;
Samuel Oschin Foundation; Eastman Kodak Corporation
FX We would like to thank the anonymous referee for useful comments and
Simona Giacintucci for useful discussions. Support for this work was
provided by NASA through the Einstein Postdoctoral grant number
PF2-130104 awarded by the Chandra X-ray Center, which is operated by the
Smithsonian Astrophysical Observatory for NASA under contract
NAS8-03060. Basic research into radio astronomy at the Naval Research
Laboratory is supported by 6.1 Base funds. The scientific results
reported in this article are based in part on observations made by the
Chandra X-Ray Observatory. The National Radio Astronomy Observatory is a
facility of the National Science Foundation operated under cooperative
agreement by Associated Universities, Inc. This work is based on data
products from observations made with ESO Telescopes at the La Silla or
Paranal Observatory under programme ID 070.B-0440(A). This publication
makes use of data products from the Two Micron All Sky Survey, which is
a joint project of the University of Massachusetts and the Infrared
Processing and Analysis Center/California Institute of Technology,
funded by the National Aeronautics and Space Administration and the
National Science Foundation. The Digitized Sky Surveys were produced at
the Space Telescope Science Institute under U.S. Government grant NAG
W-2166. The images of these surveys are based on photographic data
obtained using the Oschin Schmidt Telescope on Palomar Mountain and the
UK Schmidt Telescope. The plates were processed into the present
compressed digital form with the permission of these institutions. The
Second Palomar Observatory Sky Survey (POSS-II) was made by the
California Institute of Technology with funds from the National Science
Foundation, the National Geographic Society, the Sloan Foundation, the
Samuel Oschin Foundation, and the Eastman Kodak Corporation.
NR 97
TC 10
Z9 10
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 1
PY 2013
VL 769
IS 2
AR 101
DI 10.1088/0004-637X/769/2/101
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 158UM
UT WOS:000319999100017
ER
PT J
AU Mitchell, SJ
Doolette, DJ
AF Mitchell, Simon J.
Doolette, David J.
TI Recreational technical diving part 1: an introduction to technical
diving methods and activities
SO DIVING AND HYPERBARIC MEDICINE
LA English
DT Review
DE Technical diving; enriched air - nitrox; trimix; cave diving; wreck
diving; rebreather; review article
ID ENRICHED AIR NITROX; FATIGUE
AB Technical divers use gases other than air and advanced equipment configurations to conduct dives that are deeper and/or longer than typical recreational air dives. The use of oxygen-nitrogen (nitrox) mixes with oxygen fractions higher than air results in longer no-decompression limits for shallow diving, and faster decompression from deeper dives. For depths beyond the air-diving range, technical divers mix helium, a light non-narcotic gas, with nitrogen and oxygen to produce 'trimix'. These blends are tailored to the depth of intended use with a fraction of oxygen calculated to produce an inspired oxygen partial pressure unlikely to cause cerebral oxygen toxicity and a nitrogen fraction calculated to produce a tolerable degree of nitrogen narcosis. A typical deep technical dive will involve the use of trimix at the target depth with changes to gases containing more oxygen and less inert gas during the decompression. Open-circuit scuba may be used to carry and utilise such gases, but this is very wasteful of expensive helium. There is increasing use of closed-circuit 'rebreather' devices. These recycle expired gas and potentially limit gas consumption to a small amount of inert gas to maintain the volume of the breathing circuit during descent and the amount of oxygen metabolised by the diver. This paper reviews the basic approach to planning and execution of dives using these methods to better inform physicians of the physical demands and risks.
C1 [Mitchell, Simon J.] Univ Auckland, Dept Anaesthesiol, Auckland 1, New Zealand.
[Mitchell, Simon J.] Auckland City Hosp, Auckland, New Zealand.
[Doolette, David J.] USN, Expt Div Unit, Panama City, FL USA.
RP Mitchell, SJ (reprint author), Univ Auckland, Dept Anaesthesiol, Private Bag 92019, Auckland 1, New Zealand.
EM sj.mitchell@auckland.ac.nz
NR 18
TC 8
Z9 8
U1 2
U2 24
PU SOUTH PACIFIC UNDERWATER MED SOC
PI MELBOURNE
PA C/O AUSTRALIAN & NEW ZEALAND COLL ANAESTHETISTS, 630 ST KILDA RD,
MELBOURNE, VIC 3004, AUSTRALIA
SN 1833-3516
J9 DIVING HYPERB MED
JI Diving Hyperb. Med.
PD JUN
PY 2013
VL 43
IS 2
BP 86
EP 93
PG 8
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA 161LJ
UT WOS:000320194100007
PM 23813462
ER
PT J
AU Doolette, DJ
Mitchell, SJ
AF Doolette, David J.
Mitchell, Simon J.
TI Recreational technical diving part 2: decompression from deep technical
dives
SO DIVING AND HYPERBARIC MEDICINE
LA English
DT Review
DE Technical diving; deep diving; trimix; decompression; decompression
tables; models; decompression sickness; inner ear; review article
ID TO-LEFT SHUNT; LOW-RISK DECOMPRESSION; PATENT FORAMEN OVALE; INNER-EAR;
GAS EMBOLISM; SICKNESS; ILLNESS; MODEL; AIR; EXCURSIONS
AB Technical divers perform deep, mixed-gas 'bounce' dives, which are inherently inefficient because even a short duration at the target depth results in lengthy decompression. Technical divers use decompression schedules generated from modified versions of decompression algorithms originally developed for other types of diving. Many modifications ostensibly produce shorter and/or safer decompression, but have generally been driven by anecdote. Scientific evidence relevant to many of these modifications exists, but is often difficult to locate. This review assembles and examines scientific evidence relevant to technical diving decompression practice. There is a widespread belief that bubble algorithms, which redistribute decompression in favour of deeper decompression stops, are more efficient than traditional, shallow-stop, gas-content algorithms, but recent laboratory data support the opposite view. It seems unlikely that switches from helium-to nitrogen-based breathing gases during ascent will accelerate decompression from typical technical bounce dives. However, there is evidence for a higher prevalence of neurological decompression sickness (DCS) after dives conducted breathing only helium-oxygen than those with nitrogen-oxygen. There is also weak evidence suggesting less neurological DCS occurs if helium-oxygen breathing gas is switched to air during decompression than if no switch is made. On the other hand, helium-to-nitrogen breathing gas switches are implicated in the development of inner-ear DCS arising during decompression. Inner-ear DCS is difficult to predict, but strategies to minimize the risk include adequate initial decompression, delaying helium-to-nitrogen switches until relatively shallow, and the use of the maximum safe fraction of inspired oxygen during decompression.
C1 [Doolette, David J.] USN, Expt Div Unit, Panama City, FL 32407 USA.
[Mitchell, Simon J.] Univ Auckland, Dept Anaesthesiol, Auckland 1, New Zealand.
RP Doolette, DJ (reprint author), USN, Expt Div Unit, 321 Bullfinch Rd, Panama City, FL 32407 USA.
EM david.doolette.as@navy.mil
NR 47
TC 3
Z9 4
U1 3
U2 11
PU SOUTH PACIFIC UNDERWATER MED SOC
PI MELBOURNE
PA C/O AUSTRALIAN & NEW ZEALAND COLL ANAESTHETISTS, 630 ST KILDA RD,
MELBOURNE, VIC 3004, AUSTRALIA
SN 1833-3516
J9 DIVING HYPERB MED
JI Diving Hyperb. Med.
PD JUN
PY 2013
VL 43
IS 2
BP 96
EP 104
PG 9
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA 161LJ
UT WOS:000320194100008
PM 23813463
ER
PT J
AU Rao, JBL
Mital, R
Patel, DP
Parent, MG
Tavik, G
AF Rao, J. B. L.
Mital, R.
Patel, D. P.
Parent, M. G.
Tavik, G.
TI Low-Cost Multibeam Phased Array Antenna for Communications with GEO
Satellites
SO IEEE AEROSPACE AND ELECTRONIC SYSTEMS MAGAZINE
LA English
DT Article
DE Design methodology; Phased arrays; Antenna arrays; Planar arrays;
Complexity theory; Phase shifters; Satellite antennas; Mobile
communication
ID GEOSYNCHRONOUS ARC COVERAGE; LINEAR-ARRAY; 60-DEGREES
C1 [Rao, J. B. L.] Sotera Def Solut Inc, Herndon, VA 20171 USA.
[Mital, R.; Patel, D. P.; Parent, M. G.; Tavik, G.] US Naval Res Lab, Washington, DC USA.
RP Rao, JBL (reprint author), Sotera Def Solut Inc, Herndon, VA 20171 USA.
EM rashmi.mital@nrl.navy.mil; dharmesh.patel@nrl.navy.mil
NR 8
TC 1
Z9 1
U1 1
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8985
J9 IEEE AERO EL SYS MAG
JI IEEE Aerosp. Electron. Syst. Mag.
PD JUN
PY 2013
VL 28
IS 6
BP 32
EP 37
DI 10.1109/MAES.2013.6533742
PG 6
WC Engineering, Aerospace; Engineering, Electrical & Electronic
SC Engineering
GA 167XJ
UT WOS:000320668500004
ER
PT J
AU Kephart, JT
Fitzpatrick, BK
Ferrara, P
Pyryt, M
Miller, J
Nadig, C
AF Kephart, Jacob T.
Fitzpatrick, Brian K.
Ferrara, Peter
Pyryt, Michael
Miller, Jason
Nadig, Clare
TI Flow Resistance Experiments in HTS Cable Form
SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
LA English
DT Article
DE Flow resistance; fluid flow; HTS degaussing; Navy degaussing system;
superconducting coils
AB High-temperature superconducting cables have application in the Navy for power cables as well as degaussing cables. The current interest is in using a gaseous cryogen circulated by means of a cryogenic fan as the cooling media for the HTS conductor. Flow through this style of cable is through an eccentrically situated corrugated annular region. Correlations do not currently exist for this arrangement since it is not a simple configuration. Experiments were carried out to measure pressure drop with varied flow rate of air and nitrogen through 10-m sections of tubing. A variety of tubing configurations was used including smooth tube, eccentric smooth annulus, and eccentric corrugated annulus with HTS wire bundle forming the inner filling material. A method was developed for comparing the relative flow resistance of tubing configuration, which included determining an effective hydraulic diameter based on observed data set fit to the Darcy-Weisbach equation and the Colebrook equation. The effective hydraulic diameter allowed for easy comparison of flow impedance for all configurations regardless of specific flow conditions.
C1 [Kephart, Jacob T.; Fitzpatrick, Brian K.; Ferrara, Peter; Pyryt, Michael; Miller, Jason; Nadig, Clare] USN, Ctr Surface Warfare, Carderock Div, Philadelphia, PA 19112 USA.
RP Kephart, JT (reprint author), USN, Ctr Surface Warfare, Carderock Div, Philadelphia, PA 19112 USA.
EM jacob.kephart@navy.mil; brian.fitzpatrick@navy.mil;
peter.j.ferrara@navy.mil; michael.pyryt@navy.mil;
jules.pienkos@navy.mil; c.g.nadig@gmail.com
FU Office of Naval Research
FX This work was supported by the Office of Naval Research and conducted by
the Naval Surface Warfare Center Carderock Division.
NR 9
TC 3
Z9 3
U1 1
U2 21
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1051-8223
J9 IEEE T APPL SUPERCON
JI IEEE Trans. Appl. Supercond.
PD JUN
PY 2013
VL 23
IS 3
AR 5401304
DI 10.1109/TASC.2012.2237222
PN 2
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA 143VA
UT WOS:000318895100153
ER
PT J
AU Briggs, MJ
Kopp, PJ
Ankudinov, VK
Silver, AL
AF Briggs, Michael J.
Kopp, Paul J.
Ankudinov, Vladimir K.
Silver, Andrew L.
TI Comparison of Measured Ship Squat with Numerical and Empirical Methods
SO JOURNAL OF SHIP RESEARCH
LA English
DT Article
DE ship squat; numerical models; empirical formulas; ship measurements
AB The Beck, Newman and Tuck (BNT) numerical predictions are used in the Coastal and Hydraulics Laboratory (CHL) Channel Analysis and Design Evaluation Tool (CADET) model for predicting underkeel clearance (UKC) resulting from ship motions and squat. The Ankudinov empirical squat prediction formula has been used in the CHL ship simulator and was recently updated. The World Association for Waterborne Transport Infrastructure (formerly The Permanent International Association of Navigation Congresses, PIANC) has recommended several empirical and physics-based formulas for the prediction of ship squat. Some of the most widely used formulas include those of Barrass, Eryuzlu, Huuska, ICORELS, Romisch, Tuck, and Yoshimura. The purpose of this article is to compare BNT, Ankudinov, and PIANC predictions with measured DGPS squat data from the Panama Canal for four ships. These comparisons demonstrate that the BNT, Ankudinov, and PIANC predictions fall within the range of squat measurements and can be used with confidence in deep draft channel design.
C1 [Briggs, Michael J.] USA, Engn Res & Dev Ctr, Res Hydraul Engn Coastal & Hydraul Lab, Vicksburg, MS USA.
[Kopp, Paul J.] Naval Architect, Naval Surface Warfare Ctr, Carderock Div, Seakeeping Dept, West Bethesda, MD USA.
[Ankudinov, Vladimir K.] TRANSAS, Hydrodynam & Res Dept, Washington, DC USA.
[Silver, Andrew L.] Naval Surface Warfare Ctr, Carderock Div, Seakeeping Dept, West Bethesda, MD USA.
RP Briggs, MJ (reprint author), USA, Engn Res & Dev Ctr, Res Hydraul Engn Coastal & Hydraul Lab, Vicksburg, MS USA.
NR 32
TC 1
Z9 1
U1 3
U2 10
PU SOC NAVAL ARCH MARINE ENG
PI JERSEY CITY
PA 601 PAVONIA AVENUE, JERSEY CITY, NJ 07306 USA
SN 0022-4502
J9 J SHIP RES
JI J. Ship Res.
PD JUN
PY 2013
VL 57
IS 2
BP 73
EP 85
DI 10.5957/JOSR.57.1.120007
PG 13
WC Engineering, Marine; Engineering, Civil
SC Engineering
GA 164RP
UT WOS:000320427500001
ER
PT J
AU Morabito, MG
AF Morabito, Michael G.
TI Planing in Shallow Water at Critical Speed
SO JOURNAL OF SHIP RESEARCH
LA English
DT Article
DE shallow water; planing hull
AB This article summarizes experiments to determine the effect of shallow water on flat-bottomed prismatic hulls towed fixed in heave and trim over a wide range of speed regimes. The experimental design allowed for the separate measurement of pressure forces normal to the bottom and viscous forces tangential to the bottom. The experiments showed that below a depth Froude number of unity (subcritical speeds), shallow water resulted in a reduction in pressure forces on the bottom of the hull. Around a depth Froude number of unity (critical speed), a solitary wave formed at the model, increasing the wetted length and also increasing the bottom pressure forces, which became unsteady. Above a depth Froude number of unity (supercritical speeds), the pressure forces on the bottom of the hull were greater in shallow water than in deep water. Observations of the inception of transom ventilation showed that full ventilation occurred at lower Froude numbers in shallow water and that trim has a strong effect on transom ventilation at all water depths. To assist in explaining these effects, each of the forces acting on a flat-bottomed hull are discussed and it is shown how they vary with speed and water depth. The observed trends from these fixed model tests are in qualitative agreement with experiments with free to trim and heave models as well as two-dimensional theories of planing in shallow water.
C1 USN Acad, Annapolis, MD 21402 USA.
RP Morabito, MG (reprint author), USN Acad, Annapolis, MD 21402 USA.
FU Office of Naval Research, Atlantic Center for the Innovative Design and
Control of Small Ships [N00014-10-1-065]
FX We thank Dr. Gregory White, US Naval Academy Hydromechanics Laboratory
Director, for use of the towing facilities; USNA staff naval architect
Mark Pavkov for development of the test apparatus; Hydromechanics
Laboratory branch head, John Zseleczky; and technicians, Daniel Rhodes
and Don Bunker, for assistance with developing the testing procedure.
This project was partially funded by the Office of Naval Research,
Atlantic Center for the Innovative Design and Control of Small Ships,
Award N00014-10-1-065, Program Managers Kelly Cooper and Paul Rispin.
NR 23
TC 1
Z9 1
U1 2
U2 5
PU SOC NAVAL ARCH MARINE ENG
PI JERSEY CITY
PA 601 PAVONIA AVENUE, JERSEY CITY, NJ 07306 USA
SN 0022-4502
J9 J SHIP RES
JI J. Ship Res.
PD JUN
PY 2013
VL 57
IS 2
BP 98
EP 111
DI 10.5957/JOSR.57.2.120031
PG 14
WC Engineering, Marine; Engineering, Civil
SC Engineering
GA 164RP
UT WOS:000320427500003
ER
PT J
AU Judge, CQ
Judge, JA
AF Judge, Carolyn Q.
Judge, John A.
TI Measurement of Hydrodynamic Coefficients on a Planing Hull Using Forced
Roll Oscillations
SO JOURNAL OF SHIP RESEARCH
LA English
DT Article
DE hydrodynamics; model testing; planing hulls
ID INSTABILITY; PREDICTION; STABILITY; CRAFT; BOATS
AB For planing hulls, dynamic lift reduces the submergence of the hull, allowing small motions to result in large changes in hydrodynamic forces and moments. This article explores various modeling assumptions associated with transverse plane dynamics in roll and the hydrodynamic forces in the planing regime. The significance of nonlinearities in the roll hydrodynamic forces for planing hulls was investigated with regard to roll amplitude, model speed, model displacement, and roll oscillation frequency. A wooden 20 degrees deadrise prismatic planing hull was tested at steady roll angles and in dynamic roll at various roll amplitudes and frequencies. Two displacements, three model speeds, three roll amplitudes, and four roll oscillation frequencies were tested. The measured wetted lengths, roll-restoring coefficient, roll-added inertia coefficient, and roll-damping coefficient are presented. The roll-restoring moment is found to be nonlinear with roll amplitude, the added inertia coefficient shows some dependence on model speed, and the roll-damping coefficient shows some amplitude dependence.
C1 [Judge, Carolyn Q.] USN Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD 21402 USA.
[Judge, John A.] Catholic Univ Amer, Dept Mech Engn, Washington, DC 20064 USA.
RP Judge, CQ (reprint author), USN Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD 21402 USA.
RI Judge, John/D-1429-2015
FU Office of Naval Research [N0001411WX21106]
FX We acknowledge the work of William Beaver and Dan Rhodes, of the
Hydromechanics Laboratory at the U.S. Naval Academy, who put
considerable effort and talent into construction of the Forced Roll
Mechanism and data collection for this ambitious project. The support of
the Office of Naval Research is gratefully acknowledged through grant
N0001411WX21106.
NR 19
TC 2
Z9 2
U1 0
U2 8
PU SOC NAVAL ARCHITECTS MARINE ENGINEERS
PI JERSEY CITY
PA 601 PAVONIA AVENUE, JERSEY CITY, NJ 07306 USA
SN 0022-4502
EI 1542-0604
J9 J SHIP RES
JI J. Ship Res.
PD JUN
PY 2013
VL 57
IS 2
BP 112
EP 124
DI 10.5957/JOSR.57.2.120020
PG 13
WC Engineering, Marine; Engineering, Civil
SC Engineering
GA 164RP
UT WOS:000320427500004
ER
PT J
AU Baggenstoss, PM
AF Baggenstoss, Paul M.
TI Processing advances for localization of beaked whales using time
difference of arrival
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID MESOPLODON-DENSIROSTRIS
AB This paper is concerned with the localization of clicking Blainville's beaked whales (Mesoplodon densirostris) using an array of widely spaced bottom-mounted hydrophones. A set of signal and data processing advances are presented that together make reliable tracking a possibility. These advances include a species-specific detector, elimination of spurious time-difference-of-arrival (TDOA) estimates, improved tracking of TDOA estimates, positive association of TDOA estimates using different hydrophone pairs, and joint localization of multiple whales. A key innovation in three of these advances is the principle of click-matching. The methods are demonstrated using real data.
C1 USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Baggenstoss, PM (reprint author), USN, Undersea Warfare Ctr, 1176 Howell St, Newport, RI 02841 USA.
EM p.m.baggenstoss@ieee.org
FU Office of Naval Research
FX This work was funded by the Office of Naval Research. The author would
like to thank Jessica Ward Shaffer and Tiago Marques for their helpful
comments.
NR 16
TC 2
Z9 2
U1 0
U2 12
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD JUN
PY 2013
VL 133
IS 6
BP 4065
EP 4076
DI 10.1121/1.4798675
PG 12
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 161EC
UT WOS:000320173600048
PM 23742359
ER
PT J
AU Tufts, JB
Chen, SY
Marshall, L
AF Tufts, Jennifer B.
Chen, Siyuan
Marshall, Lynne
TI Attenuation as a function of the canal length of custom-molded earplugs:
A pilot study
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
AB Custom-molded earplugs (CMEPs) whose canal segments extend beyond the second bend of the ear canal can provide excellent attenuation but can sometimes be uncomfortable. Attenuation was measured for CMEPs whose canal segments were shortened in 2-mm increments. The within-subjects design permitted illustration of the form of the function relating attenuation to canal segment length for individuals. Reduction of attenuation due to canal segment shortening was generally more pronounced for frequencies <= 1000 Hz. Some regions of the canal segments were more critical than others in maintaining attenuation. The relationship between comfort and canal segment length was not straightforward.
C1 [Tufts, Jennifer B.; Chen, Siyuan] Univ Connecticut, Dept Speech Language & Hearing Sci, Storrs, CT 06269 USA.
[Marshall, Lynne] USN, Submarine Med Res Lab, Groton, CT 06349 USA.
RP Tufts, JB (reprint author), Univ Connecticut, Dept Speech Language & Hearing Sci, 850 Bolton Rd,Unit 1085, Storrs, CT 06269 USA.
EM Jennifer.tufts@uconn.edu; siyuan.chen@uconn.edu;
Lynne.Marshall@med.navy.mil
FU Office of Naval Research
FX This study was funded by the Office of Naval Research.
NR 11
TC 3
Z9 3
U1 0
U2 2
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD JUN
PY 2013
VL 133
IS 6
BP EL446
EP EL451
DI 10.1121/1.4802896
PG 6
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 161EC
UT WOS:000320173600002
PM 23742438
ER
PT J
AU Winchester, JC
Kapan, DD
AF Winchester, Jonathan C.
Kapan, Durrell D.
TI HISTORY OF AEDES MOSQUITOES IN HAWAII
SO JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION
LA English
DT Article
DE Aedes aegypti eradication; Aedes albopictus; mosquito history; Hawaii;
dengue
ID YELLOW-FEVER; ALBOPICTUS SKUSE; AEGYPTI DIPTERA; DENGUE; ISLAND;
COMPETITION; ESTABLISHMENT; TRANSMISSION; ERADICATION; CULICIDAE
AB As a geographically isolated island chain with no native mosquitoes, Hawaii is a model for examining the mechanisms behind insect vector invasions and their subsequent interactions with each other and with human populations. The yellow fever mosquito, Aedes aegypti, and the Asian tiger mosquito, Ae. albopictus, have been responsible for epidemics of dengue in Hawaii. As one of the world's earliest locations to be invaded by both species, Hawaii's history is particularly relevant because both species are currently invading new areas worldwide and are implicated in outbreaks of emergent or reemergent pathogens such as dengue, chikungunya, and yellow fever. Here we analyze the historical records of mosquito introductions in order to understand the factors that have led to the current distribution of these 2 mosquitoes in the Hawaiian Islands.
C1 [Winchester, Jonathan C.; Kapan, Durrell D.] Univ Hawaii Manoa, Pacif Biosci Res Ctr, Ctr Conservat & Res Training, Honolulu, HI 96822 USA.
RP Winchester, JC (reprint author), USN, Environm & Prevent Med Unit 6, Honolulu, HI 96860 USA.
FU University of Hawaii's National Science Foundation [NSF-IGERT0549514]
FX We thank Anita Manning, Shannon Bennett, and Duane Gubler for many
useful ideas. Pingjun Yang and other employees of the Vector Control
Branch, HDOH, provided indispensible access to their historical records
and many useful interviews. This research was supported in part by
training provided by the University of Hawaii's National Science
Foundation Integrative Training in Ecology, Conservation and Pathogen
Biology program (NSF-IGERT0549514) to Kenneth Y. Kaneshiro.
NR 80
TC 2
Z9 2
U1 2
U2 23
PU AMER MOSQUITO CONTROL ASSOC
PI MOUNT LAUREL
PA 15000 COMMERCE PARKWAY, SUITE C, MOUNT LAUREL, NJ 08054 USA
SN 8756-971X
J9 J AM MOSQUITO CONTR
JI J. Am. Mosq. Control Assoc.
PD JUN
PY 2013
VL 29
IS 2
BP 154
EP 163
DI 10.2987/12-6292R.1
PG 10
WC Entomology
SC Entomology
GA 161DI
UT WOS:000320171500009
PM 23923330
ER
PT J
AU Barry, JD
Wills, BK
AF Barry, J. Dave
Wills, Brandon K.
TI Neurotoxic Emergencies
SO PSYCHIATRIC CLINICS OF NORTH AMERICA
LA English
DT Article
DE Poisoning; Emergency; Overdose; Neurology; Toxicology; Neurotoxins;
Seizures; Antidepressants
ID NEUROLEPTIC MALIGNANT SYNDROME; REFRACTORY STATUS EPILEPTICUS;
CONVULSIVE STATUS EPILEPTICUS; GAMMA-HYDROXYBUTYRIC ACID; OF-HOSPITAL
MANAGEMENT; CASE SERIES; SEROTONIN SYNDROME; CLINICAL-PHARMACOLOGY;
ANTIEPILEPTIC DRUGS; DELIRIUM-TREMENS
AB This article is intended for clinicians treating neurotoxic emergencies. Presented are causative agents of neurotoxic emergencies, many of which are easily mistaken for acute psychiatric disorders. Understanding the wide variety of agents responsible for neurotoxic emergencies and the neurotransmitter interactions involved will help the psychiatrist identify and treat this challenging population.
C1 [Barry, J. Dave] USN, Med Ctr Portsmouth, Emergency Med Residency Program, Portsmouth, VA USA.
[Barry, J. Dave] USN, Med Ctr Portsmouth, Dept Emergency Med, Portsmouth, VA 23708 USA.
[Barry, J. Dave] Uniformed Serv Univ Hlth Sci, Bethesda, MD USA.
[Wills, Brandon K.] Virginia Commonwealth Univ, Med Ctr, Richmond, VA USA.
[Wills, Brandon K.] Virginia Commonwealth Univ, Ctr Hlth, Dept Emergency Med, Richmond, VA USA.
[Wills, Brandon K.] Virginia Poison Ctr, Richmond, VA 23298 USA.
RP Barry, JD (reprint author), 2605 Admiral Dr, Virginia Beach, VA 23451 USA.
EM James.barry@med.navy.mil
NR 180
TC 0
Z9 0
U1 1
U2 12
PU W B SAUNDERS CO-ELSEVIER INC
PI PHILADELPHIA
PA 1600 JOHN F KENNEDY BOULEVARD, STE 1800, PHILADELPHIA, PA 19103-2899 USA
SN 0193-953X
EI 1558-3147
J9 PSYCHIAT CLIN N AM
JI Psychiatr. Clin. North Amer.
PD JUN
PY 2013
VL 36
IS 2
BP 219
EP +
DI 10.1016/j.psc.2013.02.003
PG 27
WC Psychiatry
SC Psychiatry
GA 167KV
UT WOS:000320631800004
PM 23688689
ER
PT J
AU Bellenoit, HJ
AF Bellenoit, Hayden J.
TI Document Raj: Writing and Scribes in Early Colonial India.
SO AMERICAN HISTORICAL REVIEW
LA English
DT Book Review
C1 [Bellenoit, Hayden J.] USN Acad, Annapolis, MD 21402 USA.
RP Bellenoit, HJ (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0002-8762
EI 1937-5239
J9 AM HIST REV
JI Am. Hist. Rev.
PD JUN
PY 2013
VL 118
IS 3
BP 834
EP 835
DI 10.1093/ahr/118.3.834
PG 2
WC History
SC History
GA 155MF
UT WOS:000319751600035
ER
PT J
AU Anam, K
Lazdun, Y
Davis, PM
Banas, RA
Elster, EA
Davis, TA
AF Anam, K.
Lazdun, Y.
Davis, P. M.
Banas, R. A.
Elster, E. A.
Davis, T. A.
TI Amnion-Derived Multipotent Progenitor Cells Support Allograft Tolerance
Induction
SO AMERICAN JOURNAL OF TRANSPLANTATION
LA English
DT Article
DE Allogeneic transplantation; amnion-derived multipotent progenitor cells;
bone marrow; chimerism; tolerance induction; T regulatory cells
ID MESENCHYMAL STEM-CELLS; REGULATORY T-CELLS; LIVER-KIDNEY
TRANSPLANTATION; ANTIGEN-PRESENTING CELLS; DONOR-SPECIFIC TOLERANCE;
INDUCED LUNG FIBROSIS; HLA-G; DENDRITIC CELLS; BONE-MARROW; MIXED
CHIMERISM
AB Donor-specific immunological tolerance using high doses of bone marrow cells (BMCs) has been demonstrated in mixed chimerism-based tolerance induction protocols; however, the development of graft versus host disease remains a risk. Here, we demonstrate that the co-infusion of limited numbers of donor unfractionated BMCs with human amnion-derived multipotent progenitor cells (AMPs) 7 days post-allograft transplantation facilitates macrochimerism induction and graft tolerance in a mouse skin transplantation model. AMPs+BMCs co-infusion with minimal conditioning led to stable, mixed, multilineage lymphoid and myeloid macrochimerism, deletion of donor-reactive T cells, expansion of CD4+CD25+Foxp3+ regulatory T cells (Tregs) and long-term allograft survival (>300 days). Based on these findings, we speculate that AMPs maybe a pro-tolerogenic cellular therapeutic that could have clinical efficacy for both solid organ and hematopoietic stem cell transplant applications.
C1 [Anam, K.; Lazdun, Y.; Davis, P. M.; Elster, E. A.; Davis, T. A.] USN, Dept Regenerat Med, Operat & Undersea Med Directorate, Med Res Ctr, Silver Spring, MD USA.
[Banas, R. A.] Stemnion Inc, Dept Immunol, Pittsburgh, PA USA.
[Elster, E. A.] Uniformed Serv Univ Hlth Sci, Dept Surg, Bethesda, MD 20814 USA.
RP Davis, TA (reprint author), USN, Dept Regenerat Med, Operat & Undersea Med Directorate, Med Res Ctr, Silver Spring, MD USA.
EM thomas.davis1@med.navy.mil
FU BUMED advanced medical development program [604771N C165 001 A0812]
FX This work was supported by BUMED advanced medical development program
604771N C165 001 A0812. Some of the authors are employees of the US
Government. This work was prepared as part of their official duties.
Title 17 U.S.C. 105 provides that "Copyright protection under this title
is not available for any work of the United States Government''. Title
17 U.S.C 101 defined a US Government work as a work prepared
by a military service member or employees of the US Government as part
of that person's official duties. R.A.B. is an employee of Stemnion,
Inc. The opinions or assertions contained in this paper are the private
views of the authors and are not to be construed as reflecting the
views, policy or positions of the Department of the Navy, Department of
Defense nor the US Government. The authors of this manuscript have no
conflicts of interest to disclose as described in by the American
Journal of Transplantation.
NR 71
TC 4
Z9 4
U1 1
U2 9
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1600-6135
J9 AM J TRANSPLANT
JI Am. J. Transplant.
PD JUN
PY 2013
VL 13
IS 6
BP 1416
EP 1428
DI 10.1111/ajt.12252
PG 13
WC Surgery; Transplantation
SC Surgery; Transplantation
GA 154WM
UT WOS:000319706900009
PM 23651511
ER
PT J
AU Shriver-Lake, LC
Golden, J
Bracaglia, L
Ligler, FS
AF Shriver-Lake, Lisa C.
Golden, Joel
Bracaglia, Laura
Ligler, Frances S.
TI Simultaneous assay for ten bacteria and toxins in spiked clinical
samples using a microflow cytometer
SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY
LA English
DT Article
DE Microflow cytometry; Multiplexed analysis; Bacterial detection; Toxin
detection; Biosensor
AB Bacterial infection and intoxication can present with common symptoms. The ability to identify a bacteria or toxin rapidly in clinical samples is critical for administering the appropriate treatment. The microflow cytometer has previously demonstrated the ability to test for six bacteria and toxins simultaneously in buffer. In this study, the number of bacteria and toxins analyzed was increased to ten, positive and negative controls were incorporated in all assays, and most importantly, multiplexed immunoassays were demonstrated in clinical matrices. The multiplexed assays using the microflow cytometer demonstrated detection limits similar to or better than other reported antibody-based methods for pathogen detection (ELISA, lateral flow, array biosensors). In most cases, detection from complex clinical matrices (serum and nasal wash) achieved limits of detection equivalent to those for spiked buffer samples. Clinical samples spiked with bacteria and/or toxins were also analyzed successfully in blind trials.
C1 [Shriver-Lake, Lisa C.; Golden, Joel; Ligler, Frances S.] USN, Ctr Bio Mol Sci & Engn, Res Lab, Washington, DC 20375 USA.
[Bracaglia, Laura] Nova Res Inc, Alexandria, VA 22308 USA.
RP Ligler, FS (reprint author), USN, Ctr Bio Mol Sci & Engn, Res Lab, Washington, DC 20375 USA.
EM frances.ligler@nrl.navy.mil
FU NIH [U01 A1075489]; ONR/NRL 6.2 work unit 6336
FX The authors wish to thank Drs. Goldman and Anderson for the llama
single-domain antibodies and Drs. Chris Taitt and Jasenka Verbarg for
preparing the blind samples. This work was supported by NIH grant U01
A1075489 and ONR/NRL 6.2 work unit 6336. The views presented are those
of the authors and do not represent the opinion or policy of the
National Institutes of Health, Department of Health and Human Service,
the US Navy, or the Department of Defense.
NR 5
TC 9
Z9 10
U1 2
U2 33
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1618-2642
J9 ANAL BIOANAL CHEM
JI Anal. Bioanal. Chem.
PD JUN
PY 2013
VL 405
IS 16
BP 5611
EP 5614
DI 10.1007/s00216-013-6980-4
PG 4
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 155KD
UT WOS:000319745700023
PM 23649924
ER
PT J
AU Liu, S
Letada, PR
AF Liu, Scott
Letada, Philip R.
TI Successful Novel Treatment of Recalcitrant Transient Acantholytic
Dermatosis (Grover Disease) Using Red Light 5-Aminolevulinic Acid
Photodynamic Therapy
SO DERMATOLOGIC SURGERY
LA English
DT Letter
C1 [Liu, Scott; Letada, Philip R.] USN, Dept Dermatol, Med Ctr Portsmouth, Portsmouth, VA USA.
RP Liu, S (reprint author), USN, Dept Dermatol, Med Ctr Portsmouth, Portsmouth, VA USA.
NR 4
TC 0
Z9 0
U1 0
U2 7
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1076-0512
J9 DERMATOL SURG
JI Dermatol. Surg.
PD JUN
PY 2013
VL 39
IS 6
BP 960
EP 961
DI 10.1111/dsu.12210
PG 2
WC Dermatology; Surgery
SC Dermatology; Surgery
GA 157ST
UT WOS:000319920100023
PM 23560385
ER
PT J
AU Dasgupta, A
Clark, RW
Giuliani, JL
Quart, ND
Jones, B
Ampleford, DJ
Hansen, SB
AF Dasgupta, A.
Clark, R. W.
Giuliani, J. L.
Quart, N. D.
Jones, B.
Ampleford, D. J.
Hansen, S. B.
TI K-alpha emission spectroscopic analysis from a Cu Z-pinch
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Article
DE Non-LTE; Emission spectra; Z-pinch; K-alpha radiation
ID DIELECTRONIC RECOMBINATION; RADIATION TRANSPORT; PLASMAS; LINE;
SELENIUM; SPECTRA; PHYSICS; DENSE; FE
AB Advances in diagnostic techniques at the Sandia Z-facility have facilitated the production of very detailed spectral data. In particular, data from the copper nested wire-array shot Z1975 provides a wealth of information about the implosion dynamics and ionization history of the pinch. Besides the dominant valence K- and L-shell lines in Z1975 spectra, K-alpha lines from various ionization stages were also observed. K-shell vacancies can be created from inner-shell excitation and ionization by hot electrons and from photo-ionization by high-energy photons; these vacancies are subsequently filled by Auger decay or resonance fluorescence. The latter process produces the K-alpha emission. For plasmas in collisional equilibrium, K-alpha emission usually occurs from highly charged ions due to the high electron temperatures required for appreciable excitation of the K-alpha transitions. Our simulation of Z1975 was carried out with the NRL 1-D DZAPP non-LTE radiation-hydrodynamics model, and the resulting K- and L-shell synthetic spectra are compared with measured radiation data. Our investigation will focus on K-alpha generation by both impacting electrons and photons. Synthetic K-alpha spectra will be generated either by self-consistently calculating the K-shell vacancy production in a full Z-pinch simulation, or by post-processing data from a simulation. The analysis of these K-alpha lines as well as K- and L-shell emission from valence electrons should provide quantitative information about the dynamics of the pinch plasma. Published by Elsevier B.V.
C1 [Dasgupta, A.; Giuliani, J. L.; Quart, N. D.] USN, Div Plasma Phys, Res Lab, Washington, DC USA.
[Clark, R. W.] Berkeley Scholars Inc, Springfield, VA USA.
[Jones, B.; Ampleford, D. J.; Hansen, S. B.] Sandia Natl Labs, Albuquerque, NM USA.
RP Dasgupta, A (reprint author), USN, Div Plasma Phys, Res Lab, Washington, DC USA.
EM arati.dasgupta@nrl.navy.mil
FU US Department of Energy/NNSA; US Department of Energy's National Nuclear
Security Administration [DE-AC04-94AL85000]
FX This work was supported by the US Department of Energy/NNSA. 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 No DE-AC04-94AL85000.
NR 22
TC 5
Z9 5
U1 1
U2 11
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1818
J9 HIGH ENERG DENS PHYS
JI High Energy Density Phys.
PD JUN
PY 2013
VL 9
IS 2
BP 347
EP 353
DI 10.1016/j.hedp.2013.03.003
PG 7
WC Physics, Fluids & Plasmas
SC Physics
GA 158EN
UT WOS:000319952300019
ER
PT J
AU Seely, JF
Weber, BV
Phipps, DG
Pereira, NR
Mosher, D
Slabkowska, K
Polasik, M
Starosta, J
Rzadkiewicz, J
Hansen, S
Feldman, U
Hudson, LT
Schumer, JW
AF Seely, John F.
Weber, B. V.
Phipps, D. G.
Pereira, N. R.
Mosher, D.
Slabkowska, K.
Polasik, M.
Starosta, J.
Rzadkiewicz, J.
Hansen, S.
Feldman, Uri
Hudson, L. T.
Schumer, J. W.
TI Tungsten L transition line shapes and energy shifts resulting from
ionization in warm dense matter
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Article
DE Warm dense matter; Ionization distribution
ID LASER-PRODUCED PLASMAS; RAY; SPECTROMETER
AB Spectra of the W L transitions in the energy range 8-12 keV from warm dense plasmas generated by the Naval Research Laboratory's Gamble II pulsed power machine were recorded by a newly developed high-resolution transmission-crystal X-ray spectrometer with +/-2 eV accuracy. The discharges have up to 2 MV voltage, 0.5 MA current, and produce up to 2.4 MJ/cm(-3) energy density. The plasma-filled rod pinch (PFRP) diode produces a plasma with N-e approximate to 10(22) cm(-3) and T-e approximate to 50 eV during the time of maximum X-ray emission. By analyzing the line shapes, it was determined that the L beta(2) inner-shell transition from the 4d(5/2) level was shifted to higher energy by up to 23 eV relative to nearby L beta transitions from n = 3 levels. In addition, the L beta(2) transition was significantly broader and asymmetric compared to the n = 3 transitions. The energy shift of the L beta(2) transition results from the ionization of electrons outside the 4d shell that perturbs the transition energies in the ions to higher values. The increased line width and asymmetry result from unresolved transitions from a range of ionization states up to +28. The ionization distribution was determined by comparison of the measured energy shifts and widths to calculated transition energies in W ions, and the ionization was correlated with Gamble discharge parameters such as the anode type and the high voltage delay time. This work demonstrates a new hard X-ray spectroscopic diagnostic technique for the direct measurement of the ionization distribution in warm dense plasmas of the heavy elements W through U that is independent of the other plasma parameters and does not require interpretation by hydrodynamic, atomic kinetics, and radiative simulation codes. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Seely, John F.; Feldman, Uri] Artep Inc, Ellicott City, MD 21042 USA.
[Weber, B. V.; Phipps, D. G.; Schumer, J. W.] USN, Res Lab, Washington, DC 20375 USA.
[Pereira, N. R.] Ecopulse Inc, Springeld, VA 22150 USA.
[Mosher, D.] USN, Res Lab, Engil Corp, Chantilly, VA 20151 USA.
[Slabkowska, K.; Polasik, M.; Starosta, J.] Nicolaus Copernicus Univ, Fac Chem, PL-87100 Torun, Poland.
[Rzadkiewicz, J.] Natl Ctr Nucl Studies, PL-01497 Warsaw, Poland.
[Hansen, S.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Hudson, L. T.] NIST, Gaithersburg, MD 20899 USA.
RP Seely, JF (reprint author), Artep Inc, 2922 Excelsior Springs Ct, Ellicott City, MD 21042 USA.
EM seelyjf@gmail.com
RI Slabkowska, katarzyna/O-8760-2015
FU US Office of Naval Research; US Defense Threat Reduction Agency; US
Department of Energy; Polish National Science Centre
[2011/01/D/ST2/01286]; Polish Ministry of Science and Higher Education;
Framework Programme EURATOM [FU07-CT-2007-00061]
FX This work was supported by the US Office of Naval Research, US Defense
Threat Reduction Agency, and the US Department of Energy. This work was
also supported by the Polish National Science Centre under Grant No.
2011/01/D/ST2/01286. This work was partly financed within an
international project co-funded by the Polish Ministry of Science and
Higher Education from the funds for science in 2012 and the Framework
Programme EURATOM within the FU07-CT-2007-00061 contract. The views and
opinions expressed herein do not necessarily reflect those of the
European Commission. Certain commercial equipment, instruments, or
materials are identified in this work in order to specify the
experimental procedure adequately. Such identification is not intended
to imply recommendation or endorsement, nor is it intended to imply that
the materials or equipment identified are necessarily the best available
for the purpose.
NR 21
TC 10
Z9 10
U1 1
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1818
EI 1878-0563
J9 HIGH ENERG DENS PHYS
JI High Energy Density Phys.
PD JUN
PY 2013
VL 9
IS 2
BP 354
EP 362
DI 10.1016/j.hedp.2013.03.005
PG 9
WC Physics, Fluids & Plasmas
SC Physics
GA 158EN
UT WOS:000319952300020
ER
PT J
AU Flatau, M
Kim, YJ
AF Flatau, Maria
Kim, Young-Joon
TI Interaction between the MJO and Polar Circulations
SO JOURNAL OF CLIMATE
LA English
DT Article
ID MADDEN-JULIAN OSCILLATION; ARCTIC OSCILLATION; ANTARCTIC OSCILLATION;
BOREAL WINTER; ANNULAR MODES; PART I; VARIABILITY; SIGNATURE; SEA
AB A tropical-polar connection and its seasonal dependence are examined using the real-time multivariate Madden-Julian oscillation (MJO) (RMM) index and daily indices for the annular modes, the Arctic Oscillation (AO) and the Antarctic Oscillation (AAO). On the intraseasonal time scale, the MJO appears to force the annular modes in both hemispheres. On this scale, during the cold season, the convection in the Indian Ocean precedes the increase of the AO/AAO. Interestingly, during the boreal winter (Southern Hemisphere warm season), strong MJOs in the Indian Ocean are related to a decrease of the AAO index, and AO/AAO tendencies are out of phase. On the longer time scales, a persistent AO/AAO anomaly appears to influence the convection in the tropical belt and impact the distribution of MJO-preferred phases. It is shown that this may be a result of the sea surface temperature (SST) changes related to a persistent AO, with cooling over the Indian Ocean and warming over Indonesia. In the Southern Hemisphere, the SST anomalies are to some extent also related to a persistent AAO pattern, but this relationship is much weaker and appears only during the Southern Hemisphere cold season. On the basis of these results, a mechanism involving the air-sea interaction in the tropics is suggested as a possible link between persistent AO and convective activity in the Indian Ocean and western Pacific.
C1 [Flatau, Maria; Kim, Young-Joon] USN, Marine Meteorol Div, Res Lab, Monterey, CA 93943 USA.
RP Flatau, M (reprint author), USN, Marine Meteorol Div, Res Lab, 7 Grace Hopper Ave, Monterey, CA 93943 USA.
EM maria.flatau@nrlmry.navy.mil
FU Office of Naval Research [0601153N]
FX The authors appreciate the support by the Office of Naval Research under
Program Element 0601153N. The authors are grateful to the anonymous
reviewers for the insightful and extensive comments that contributed to
improvement of the manuscript. They would like to thank Piotr J. Flatau
for his suggestions and help.
NR 25
TC 12
Z9 12
U1 1
U2 13
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0894-8755
J9 J CLIMATE
JI J. Clim.
PD JUN
PY 2013
VL 26
IS 11
BP 3562
EP 3574
DI 10.1175/JCLI-D-11-00508.1
PG 13
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 155HT
UT WOS:000319739300005
ER
PT J
AU Hacker, JP
Angevine, WM
AF Hacker, J. P.
Angevine, W. M.
TI Ensemble Data Assimilation to Characterize Surface-Layer Errors in
Numerical Weather Prediction Models
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID ATMOSPHERE COUPLING EXPERIMENT; MESOSCALE ETA-MODEL; KALMAN FILTER; PART
I; CLOUD MODEL; FLUXES; STATE; PARAMETERIZATIONS; SENSITIVITY; PBL
AB Experiments with the single-column implementation of the Weather Research and Forecasting Model provide a basis for deducing land-atmosphere coupling errors in the model. Coupling occurs both through heat and moisture fluxes through the land-atmosphere interface and roughness sublayer, and turbulent heat, moisture, and momentum fluxes through the atmospheric surface layer. This work primarily addresses the turbulent fluxes, which are parameterized following the Monin-Obukhov similarity theory applied to the atmospheric surface layer. By combining ensemble data assimilation and parameter estimation, the model error can be characterized. Ensemble data assimilation of 2-m temperature and water vapor mixing ratio, and 10-m wind components, forces the model to follow observations during a month-long simulation for a column over the well-instrumented Atmospheric Radiation Measurement (ARM) Central Facility near Lamont, Oklahoma. One-hour errors in predicted observations are systematically small but nonzero, and the systematic errors measure bias as a function of local time of day. Analysis increments for state elements nearby (15 m AGL) can be too small or have the wrong sign, indicating systematically biased covariances and model error. Experiments using the ensemble filter to objectively estimate a parameter controlling the thermal land-atmosphere coupling show that the parameter adapts to offset the model errors, but that the errors cannot be eliminated. Results suggest either structural errors or further parametric errors that may be difficult to estimate. Experiments omitting atypical observations such as soil and flux measurements lead to qualitatively similar deductions, showing the potential for assimilating common in situ observations as an inexpensive framework for deducing and isolating model errors.
C1 [Hacker, J. P.] USN, Postgrad Sch, Monterey, CA 93943 USA.
[Angevine, W. M.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Angevine, W. M.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
RP Hacker, JP (reprint author), USN, Postgrad Sch, Dept Meteorol, 589 Dyer Rd, Monterey, CA 93943 USA.
EM hacker@nps.edu
RI Angevine, Wayne/H-9849-2013; Manager, CSD Publications/B-2789-2015
OI Angevine, Wayne/0000-0002-8021-7116;
FU Office of Naval Research Award [N0001410WX20059]; U.S. Department of
Energy, Office of Science, Office of Biological and Environmental
Research, Environmental Sciences Division
FX This research was partially funded by the Office of Naval Research Award
N0001410WX20059. Data were obtained from the Atmospheric Radiation
Measurement (ARM) Program sponsored by the U.S. Department of Energy,
Office of Science, Office of Biological and Environmental Research,
Environmental Sciences Division. This work benefited tremendously from
conversations with Jeff Anderson and Glen Romine, and help from the rest
of the Data Assimilation Research Testbed group.
NR 50
TC 10
Z9 10
U1 0
U2 10
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0027-0644
J9 MON WEATHER REV
JI Mon. Weather Rev.
PD JUN
PY 2013
VL 141
IS 6
BP 1804
EP 1821
DI 10.1175/MWR-D-12-00280.1
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 156ZN
UT WOS:000319864300004
ER
PT J
AU McTaggart-Cowan, R
Galarneau, TJ
Bosart, LF
Moore, RW
Martius, O
AF McTaggart-Cowan, Ron
Galarneau, Thomas J., Jr.
Bosart, Lance F.
Moore, Richard W.
Martius, Olivia
TI A Global Climatology of Baroclinically Influenced Tropical Cyclogenesis
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID WESTERN NORTH PACIFIC; SAHARAN AIR LAYER; UPPER-TROPOSPHERIC TROUGH;
POTENTIAL VORTICITY STREAMERS; SEASON TYPHOON DEVELOPMENT; EASTERLY
WAVES; INDIAN-OCEAN; CONVERGENCE ZONE; ARABIAN SEA; PART II
AB Tropical cyclogenesis is generally considered to occur in regions devoid of baroclinic structures; however, an appreciable number of tropical cyclones (TCs) form in baroclinic environments each year. A global climatology of these baroclinically influenced TC developments is presented in this study. An objective classification strategy is developed that focuses on the characteristics of the environmental state rather than on properties of the vortex, thus allowing for a pointwise "development pathway'' classification of reanalysis data. The resulting climatology shows that variability within basins arises primarily as a result of local surface thermal contrasts and the positions of time-mean features on the subtropical tropopause. The pathway analyses are sampled to generate a global climatology of 1948-2010 TC developments classified by baroclinic influence: nonbaroclinic (70%), low-level baroclinic (9%), trough induced (5%), weak tropical transition (11%), and strong tropical transition (5%). All basins other than the North Atlantic are dominated by nonbaroclinic events; however, there is extensive interbasin variability in secondary development pathways. Within each basin, subregions and time periods are identified in which the relative importance of the development pathways also differs. The efficiency of tropical cyclogenesis is found to be highly dependent on development pathway. The peak efficiency defined in the classification subspace straddles the nonbaroclinic/trough-induced boundary, suggesting that the optimal environment for TC development includes a baroclinic contribution from an upper-level disturbance. By assessing the global distribution of baroclinically influenced TC formations, this study identifies regions and pathways whose further study could yield improvements in our understanding of this important subset of TC developments.
C1 [McTaggart-Cowan, Ron] Environm Canada, Numer Weather Predict Res Sect, Dorval, PQ, Canada.
[Galarneau, Thomas J., Jr.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Bosart, Lance F.] SUNY Albany, Dept Earth & Atmospher Sci, Albany, NY 12222 USA.
[Moore, Richard W.] USN, Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
[Martius, Olivia] Univ Bern, Inst Geog, Bern, Switzerland.
[Martius, Olivia] Univ Bern, Oeschger Ctr Climate Change Res, Bern, Switzerland.
RP McTaggart-Cowan, R (reprint author), 2121 Trans Canada Highway,Floor 5, Dorval, PQ H9P 1J3, Canada.
EM ron.mctaggart-cowan@ec.gc.ca
OI Martius, Olivia/0000-0002-8645-4702
FU MMM division; NSF [ATM-0849491, AGS-0849356]
FX Reanalysis-I data were obtained through NOAA/ESRL. Data from the ERA-40
and ERA-Interim were downloaded via the ECMWF data server, and JRA-25
data were obtained from the JMA data server. IBTrACS data were made
available by NOAA/NCDC through the World Data Center for Meteorology,
while NOAA OI SST(V2) fields were obtained from NOAA/OAR/ESRL PSD.
Notable advancements in this work occurred during the lead author's
extended visit to NCAR in April 2012 (funded by the MMM division). The
authors also benefited from discussions with Chris Davis, Ayrton Zadra,
John Gyakum, and Eyad Atallah during the development of the climatology
and preparation of this manuscript. This work was supported in part by
NSF Grants ATM-0849491 and AGS-0849356.
NR 110
TC 18
Z9 18
U1 1
U2 17
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0027-0644
J9 MON WEATHER REV
JI Mon. Weather Rev.
PD JUN
PY 2013
VL 141
IS 6
BP 1963
EP 1989
DI 10.1175/MWR-D-12-00186.1
PG 27
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 156ZN
UT WOS:000319864300012
ER
PT J
AU Metz, ND
Archambault, HM
Srock, AF
Galarneau, TJ
Bosart, LF
AF Metz, Nicholas D.
Archambault, Heather M.
Srock, Alan F.
Galarneau, Thomas J., Jr.
Bosart, Lance F.
TI A Comparison of South American and African Preferential Pathways for
Extreme Cold Events
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID ROCKY-MOUNTAINS; AIR INCURSIONS; SURGES; EVOLUTION; EAST; DYNAMICS;
BLOCKING; IMPACTS; CLIMATE; MEXICO
AB In the Southern Hemisphere, a relatively well-known preferential pathway along which cold air surges equatorward is situated to the east of the Andes Mountains. In this study, a second preferred pathway is identified to the east of the African Highlands, with additional minor pathways identified east of the Brazilian Highlands and Madagascar. The primary objective of this study is to compare climatological and synoptic characteristics of extreme cold events (ECEs) along the Andes and African Highlands pathways. ECEs are defined as the top 1% coldest 925-hPa temperatures within the Andes and the African Highlands pathways using the 1977-2001 subset of the 2.5 degrees x 2.5 degrees 40-yr European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-40). ECEs within the Andes and African Highlands pathways are associated with dynamically forced anticyclogenesis and have low-level characteristics that vary substantially. Along the Andes pathway, ECEs feature 925-hPa temperatures as much as 17 degrees C below normal, with 925-hPa southerly winds ranging from 0 to 10 m s(-1) and 925-700-hPa lapse rates as low as -3 degrees C km(-1). In contrast, ECEs along the African Highlands pathway feature 925-hPa temperatures up to 10 degrees C below normal, with 925-hPa southerly winds ranging from 5 to 15 m s(-1), and 925-700-hPa lapse rates generally between 28 and 5 degrees C km(-1). Composite analyses reveal that despite stronger southerly winds, ECEs along the African Highlands pathway are typically not as cold or stable as those along the Andes pathway because cold air from Antarctica must traverse a longer distance over water to reach Africa.
C1 [Metz, Nicholas D.] Hobart & William Smith Coll, Dept Geosci, Geneva, NY 14456 USA.
[Archambault, Heather M.] USN, Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
[Srock, Alan F.] Michigan State Univ, Dept Geog, Lansing, MI USA.
[Galarneau, Thomas J., Jr.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Bosart, Lance F.] SUNY Albany, Dept Atmospher & Environm Sci, Albany, NY 12222 USA.
RP Metz, ND (reprint author), Hobart & William Smith Coll, Dept Geosci, 300 Pulteney St, Geneva, NY 14456 USA.
EM nmetz@hws.edu
FU NSF [ATM9912075]
FX Funding for this research was provided by NSF Grant ATM9912075. The
ECMWF and the Data Support Section of the Computational and Information
Systems Laboratory at NCAR provided the data used in this research.
Comments from two anonymous reviewers greatly improved the quality of
this paper.
NR 36
TC 1
Z9 1
U1 2
U2 8
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 JUN
PY 2013
VL 141
IS 6
BP 2066
EP 2086
DI 10.1175/MWR-D-12-00202.1
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 156ZN
UT WOS:000319864300017
ER
PT J
AU Fan, Y
Smith, KJ
Lupke, G
Hanbicki, AT
Goswami, R
Li, CH
Zhao, HB
Jonker, BT
AF Fan, Y.
Smith, K. J.
Luepke, G.
Hanbicki, A. T.
Goswami, R.
Li, C. H.
Zhao, H. B.
Jonker, B. T.
TI Exchange bias of the interface spin system at the Fe/MgO interface
SO NATURE NANOTECHNOLOGY
LA English
DT Article
ID OPTICAL 2ND-HARMONIC GENERATION; ROOM-TEMPERATURE; MAGNETIC-ANISOTROPY;
ELECTRIC CONTROL; SURFACE; FILMS; FEO; MAGNETORESISTANCE; POLARIZATION;
SPECTROSCOPY
AB The ferromagnet/oxide interface is key to developing emerging multiferroic and spintronic technologies with new functionality. Here we probe the Fe/MgO interface magnetization, and identify a new exchange bias phenomenon manifested only in the interface spin system, and not in the bulk. The interface magnetization exhibits a pronounced exchange bias, and the hysteresis loop is shifted entirely to one side of the zero field axis. However, the bulk magnetization does not, in marked contrast to typical systems where exchange bias is manifested in the net magnetization. This reveals the existence of an antiferromagnetic exchange pinning layer at the interface, identified here as FeO patches that exist even for a nominally 'clean' interface. These results demonstrate that atomic moments at the interface are non-collinear with the bulk magnetization, and therefore may affect the net anisotropy or serve as spin scattering sites. We control the exchange bias magnitude by varying the interface oxygen concentration and Fe-O bonding.
C1 [Fan, Y.; Smith, K. J.; Luepke, G.] Coll William & Mary, Dept Appl Sci, Williamsburg, VA 23187 USA.
[Hanbicki, A. T.; Goswami, R.; Li, C. H.; Jonker, B. T.] USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
[Zhao, H. B.] Fudan Univ, Dept Opt Sci & Engn, Shanghai 200433, Peoples R China.
RP Lupke, G (reprint author), Coll William & Mary, Dept Appl Sci, 251 Jamestown Rd, Williamsburg, VA 23187 USA.
EM luepke@wm.edu; jonker@nrl.navy.mil
FU Office of Naval Research; Natural Science Foundation of China [61222407,
11074044]
FX The work at College of William and Mary was supported by the Office of
Naval Research. The work at NRL was supported by core programmes and the
Office of Naval Research. The work at Fudan University was supported by
the Natural Science Foundation of China (grant nos 61222407 and
11074044).
NR 50
TC 42
Z9 42
U1 5
U2 125
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 JUN
PY 2013
VL 8
IS 6
BP 438
EP 444
DI 10.1038/NNANO.2013.94
PG 7
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 158NS
UT WOS:000319979400016
PM 23728074
ER
PT J
AU Sanghera, J
Taira, T
Gaume, R
AF Sanghera, Jas
Taira, Takunori
Gaume, Romain
TI Feature issue introduction: optical ceramics
SO OPTICAL MATERIALS EXPRESS
LA English
DT Article
AB This feature offers 11 papers in the field of optical ceramics, and encompasses advances in optics, materials science, condensed matter, as well as physics and chemistry relevant to the development of new optical materials. Topics covered include material technologies in the field of polycrystalline ceramics, single crystals, and glass ceramics in the form of bulk and microstructured materials along with methods to fabricate the materials and a description of their optical properties pertinent for many applications. (C) 2013 Optical Society of America
C1 [Sanghera, Jas] USN, Res Lab, Washington, DC 20375 USA.
[Taira, Takunori] Natl Inst Nat Sci, Inst Mol Sci, Laser Res Ctr Mol Sci, Okazaki, Aichi 4448585, Japan.
[Gaume, Romain] Univ Cent Florida, CREOL, Coll Opt & Photon, Orlando, FL 32816 USA.
RP Sanghera, J (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM sanghera@nrl.navy.mil
RI Taira, Takunori/H-5313-2012
NR 11
TC 0
Z9 0
U1 0
U2 20
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 2159-3930
J9 OPT MATER EXPRESS
JI Opt. Mater. Express
PD JUN 1
PY 2013
VL 3
IS 6
BP 904
EP 907
DI 10.1364/OME.3.000904
PG 4
WC Materials Science, Multidisciplinary; Optics
SC Materials Science; Optics
GA 155IA
UT WOS:000319740000025
ER
PT J
AU Mutai, BK
Wainaina, JM
Magiri, CG
Nganga, JK
Ithondeka, PM
Njagi, ON
Jiang, J
Richards, AL
Waitumbi, JN
AF Mutai, Beth K.
Wainaina, James M.
Magiri, Charles G.
Nganga, Joseph K.
Ithondeka, Peter M.
Njagi, Obadiah N.
Jiang, Ju
Richards, Allen L.
Waitumbi, John N.
TI Zoonotic Surveillance for Rickettsiae in Domestic Animals in Kenya
SO VECTOR-BORNE AND ZOONOTIC DISEASES
LA English
DT Article
DE Rickettsiae in Kenya; Zoonosis; Ticks; Domestic animals; Abattoir
ID SPOTTED-FEVER GROUP; TICK BITE FEVER; PHYLOGENETIC ANALYSIS;
SOUTH-AFRICA; SP-NOV; INFECTIONS; DISEASES; IDENTIFICATION;
AESCHLIMANNII; ANDEANAE
AB Rickettsiae are obligate intracellular bacteria that cause zoonotic and human diseases. Arthropod vectors, such as fleas, mites, ticks, and lice, transmit rickettsiae to vertebrates during blood meals. In humans, the disease can be life threatening. This study was conducted amidst rising reports of rickettsioses among travelers to Kenya. Ticks and whole blood were collected from domestic animals presented for slaughter at major slaughterhouses in Nairobi and Mombasa that receive animals from nearly all counties in the country. Blood samples and ticks were collected from 1019 cattle, 379 goats, and 299 sheep and were screened for rickettsiae by a quantitative PCR (qPCR) assay (Rick17b) using primers and probe that target the genus-specific 17-kD gene (htrA). The ticks were identified using standard taxonomic keys. All Rick17b-positive tick DNA samples were amplified and sequenced with primers sets that target rickettsial outer membrane protein genes (ompA and ompB) and the citrate-synthase encoding gene (gltA). Using the Rick17b qPCR, rickettsial infections in domestic animals were found in 25/32 counties sampled (78.1% prevalence). Infection rates were comparable in cattle (16.3%) and sheep (15.1%) but were lower in goats (7.1%). Of the 596 ticks collected, 139 had rickettsiae (23.3%), and the detection rates were highest in Amblyomma (62.3%; n = 104), then Rhipicephalus (45.5%; n = 120), Hyalomma (35.9%; n = 28), and Boophilus (34.9%; n = 30). Following sequencing, 104 out of the 139 Rick17b-positive tick DNA had good reverse and forward sequences for the 3 target genes. On querying GenBank with the generated consensus sequences, homologies of 92-100% for the following spotted fever group (SFG) rickettsiae were identified: Rickettsia africae (93.%, n = 97), Rickettsia aeschlimannii (1.9%, n = 2), Rickettsia mongolotimonae (0.96%, n = 1), Rickettsia conorii subsp. israelensis (0.96%, n = 1), Candidatus Rickettsia kulagini (0.96% n = 1), and Rickettsia spp. (1.9% n = 2). In conclusion, molecular methods were used in this study to detect and identify rickettsial infections in domestic animals and ticks throughout Kenya.
C1 [Mutai, Beth K.; Wainaina, James M.; Magiri, Charles G.; Waitumbi, John N.] Kenya Govt Med Res Ctr, Walter Reed Project, Kisumu, Kenya.
[Wainaina, James M.; Nganga, Joseph K.] Jomo Kenyatta Univ Agr & Technol, Nairobi, Kenya.
[Ithondeka, Peter M.; Njagi, Obadiah N.] Vet Labs, Nairobi, Kenya.
[Jiang, Ju; Richards, Allen L.] USN, Med Res Ctr, Silver Spring, MD USA.
RP Waitumbi, JN (reprint author), Kenya Govt Med Res Ctr, Walter Reed Project, United Nations Ave Gigiri, Nairobi 00621, Kenya.
EM jwaitumbi@wrp-ksm.org
RI Valle, Ruben/A-7512-2013
FU Global Emerging Infection System (GEIS)
FX We are grateful to the Director of Veterinary Services for authorizing
and facilitating conduct of this study. We thank project staff,
including animal attendants and laboratory technicians. This work is
published with the permission of the Director, Kenya Medical Research
Institute. James Wainaina was a M.Sc. student at Jomo Kenyatta
University of Agriculture and Technology. Financial support was from a
Grant from the Global Emerging Infection System (GEIS).
NR 28
TC 8
Z9 8
U1 0
U2 15
PU MARY ANN LIEBERT INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 1530-3667
J9 VECTOR-BORNE ZOONOT
JI Vector-Borne Zoonotic Dis.
PD JUN
PY 2013
VL 13
IS 6
BP 360
EP 366
DI 10.1089/vbz.2012.0977
PG 7
WC Public, Environmental & Occupational Health; Infectious Diseases
SC Public, Environmental & Occupational Health; Infectious Diseases
GA 157NV
UT WOS:000319905800003
PM 23477290
ER
PT J
AU Jiang, J
Paris, DH
Blacksell, SD
Aukkanit, N
Newton, PN
Phetsouvanh, R
Izzard, L
Stenos, J
Graves, SR
Day, NPJ
Richards, AL
AF Jiang, Ju
Paris, Daniel H.
Blacksell, Stuart D.
Aukkanit, Nuntipa
Newton, Paul N.
Phetsouvanh, Rattanaphone
Izzard, Leonard
Stenos, John
Graves, Stephen R.
Day, Nicholas P. J.
Richards, Allen L.
TI Diversity of the 47-kD HtrA Nucleic Acid and Translated Amino Acid
Sequences from 17 Recent Human Isolates of Orientia
SO VECTOR-BORNE AND ZOONOTIC DISEASES
LA English
DT Article
DE Orientia tsutsugamushi; Scrub typhus; 47-kD HtrA protein gene; Antigenic
diversity; vaccine development
ID SCRUB TYPHUS; RICKETTSIA-TSUTSUGAMUSHI; ANTIGEN GENE; DNA VACCINE; GROEL
GENE; THAILAND; STRAINS; ILLNESS; PATIENT; PROTEIN
AB Orientia tsutsugamushi, the etiologic agent of potentially fatal scrub typhus, is characterized by a high antigenic diversity, which complicates the development of a broadly protective vaccine. Efficacy studies in murine and nonhuman primate models demonstrated the DNA vaccine candidate pKarp47, based upon the O. tsutsugamushi Karp 47-kD HtrA protein gene, to be a successful immunoprophylactic against scrub typhus. To characterize 47-kD HtrA protein diversity among human isolates of Orientia, we sequenced the full open reading frame (ORF) of the 47-kD HtrA gene and analyzed the translated amino acid sequences of 17 patient isolates from Thailand (n = 13), Laos (n = 2), Australia (n = 1), and the United Arab Emirates (UAE) (n = 1) and 9 reference strains: Karp (New Guinea), Kato (Japan), Ikeda (Japan), Gilliam (Burma), Boryong (Korea), TA763, TH1811 and TH1817 (Thailand), and MAK243 (China). The percentage identity (similarity) of translated amino acid sequences between 16 new isolates and 9 reference strains of O. tsutsugamushi ranged from 96.4% to 100% (97.4% to 100%). However, inclusion of the recently identified Orientia chuto sp. nov. reduced identity (similarity) values to 82.2% to 83.3% (90.4% to 91.4%). These results demonstrate the diversity of Orientia 47-kD HtrA among isolates encountered by humans and therefore provide support for the necessity of developing a broadly protective scrub typhus vaccine that takes this diversity into account.
C1 [Jiang, Ju; Richards, Allen L.] USN, Med Res Ctr, Silver Spring, MD 20910 USA.
[Paris, Daniel H.; Blacksell, Stuart D.; Aukkanit, Nuntipa; Newton, Paul N.; Day, Nicholas P. J.] Mahidol Univ, Fac Trop Med, Mahidol Oxford Trop Med Res Unit, Bangkok, Thailand.
[Newton, Paul N.; Phetsouvanh, Rattanaphone] Mahosot Hosp, Wellcome Trust Res Unit, Lao Oxford Mahosot Hosp, Viangchan, Laos.
[Phetsouvanh, Rattanaphone] Univ Oxford, Churchill Hosp, Ctr Trop Med, Oxford OX1 2JD, England.
[Izzard, Leonard; Stenos, John; Graves, Stephen R.] Geelong Hosp, Australian Rickettsial Reference Lab, Geelong, Vic, Australia.
[Richards, Allen L.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
RP Richards, AL (reprint author), USN, Med Res Ctr, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM Allen.Richards@med.navy.mil
OI Blacksell, Stuart/0000-0001-6576-726X
FU U.S. DoD MIDRP work unit [6000.RAD1.J.A0310]; Wellcome Trust of Great
Britain; Wellcome Trust Clinical Research Training Fellowship
[0789900/Z/06/Z]
FX This work was supported by the U.S. DoD MIDRP work unit #
6000.RAD1.J.A0310. Specimen collection in Laos was part of the
Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit funded by the
Wellcome Trust of Great Britain. We thank the Directors of Mahosot
Hospital, the staff of the Microbiology Laboratory and Infectious
Disease Ward, Mahosot Hospital, and Sayaphet Rattanavong. D. H. P. was
supported by a Wellcome Trust Clinical Research Training Fellowship
(grant no. 0789900/Z/06/Z).
NR 29
TC 5
Z9 5
U1 0
U2 5
PU MARY ANN LIEBERT INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 1530-3667
J9 VECTOR-BORNE ZOONOT
JI Vector-Borne Zoonotic Dis.
PD JUN
PY 2013
VL 13
IS 6
BP 367
EP 375
DI 10.1089/vbz.2012.1112
PG 9
WC Public, Environmental & Occupational Health; Infectious Diseases
SC Public, Environmental & Occupational Health; Infectious Diseases
GA 157NV
UT WOS:000319905800004
PM 23590326
ER
PT J
AU Maguina, JL
Konda, KA
Leon, SR
Lescano, AG
Clark, JL
Hall, ER
Klausner, JD
Coates, TJ
Caceres, CF
AF Maguina, Jorge L.
Konda, Kelika A.
Leon, Segundo R.
Lescano, Andres G.
Clark, Jesse L.
Hall, Eric R.
Klausner, Jeffrey D.
Coates, Tom J.
Caceres, Carlos F.
CA NIMH Collaborative HIV STD
TI Relationship Between Alcohol Consumption Prior to Sex, Unprotected Sex
and Prevalence of STI/HIV Among Socially Marginalized Men in Three
Coastal Cities of Peru
SO AIDS AND BEHAVIOR
LA English
DT Article
DE Alcohol consumption; Sexual risk behavior; Unprotected sex; Sexually
transmitted diseases; Human immunodeficiency virus; Marginalized
population
ID SEXUALLY-TRANSMITTED INFECTIONS; TOWN SOUTH-AFRICA; CAPE-TOWN; CLINIC
PATIENTS; GENDER-DIFFERENCES; LOW-INCOME; HIGH-RISK; SENSATION SEEKING;
HIV-1 INFECTION; PUBLIC-HEALTH
AB This article presents data about the relationship between alcohol consumption prior to sex and unprotected sex and the prevalence of at least one sexually transmitted infection (STI) including HIV among socially marginalized men in three coastal Peruvians cities. During an epidemiological survey with 2,146 men, we assessed their STI prevalence, frequency of alcohol consumption prior to sex, unprotected sex and other sexual risk behaviors. The overall prevalence of at least one STI/HIV was 8.5 % (95 % CI 7.3-9.7), the prevalence of unprotected sex was 79.1 % (95 % CI 77.8-80.3) and alcohol consumption prior to sex with any of the last five sex partners in the previous 6 months was 68.9 % (95 % CI 66.9-70.9). Bivariate and multivariate analysis showed that alcohol consumption of participants or their partners prior to sex were associated with the prevalence of at least one STI, adjusted Prevalence Ratio (aPR) = 1.3 (95 % CI 1.01-1.68). Unprotected sex was significantly associated with alcohol consumption prior to sex when both partners used alcohol, aPR = 1.15 (95 % CI 1.10-1.20) or when either one of them used alcohol aPR = 1.14 (95 % CI 1.09-1.18). These findings concur with previous literature suggesting a relationship between alcohol consumption prior to sex and STI and HIV. These data improve our understanding of this relationship in this context and could be used to enhance STI and HIV prevention strategies for socially marginalized men in Peru.
C1 [Maguina, Jorge L.; Leon, Segundo R.; Caceres, Carlos F.] Cayetano Heredia Peruvian Univ, Unit Hlth Sexual & Human Dev, Lima, Peru.
[Maguina, Jorge L.; Lescano, Andres G.] US Naval Med Res Unit 6, Dept Parasitol, Lima, Peru.
[Maguina, Jorge L.] Cayetano Heredia Peruvian Univ, Postgrad Sch, Lima, Peru.
[Konda, Kelika A.; Clark, Jesse L.; Klausner, Jeffrey D.; Coates, Tom J.] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90095 USA.
[Leon, Segundo R.; Caceres, Carlos F.] Cayetano Heredia Peruvian Univ, Res & Dev Lab, Sexual Hlth Lab, Lima, Peru.
[Hall, Eric R.] USN, Med Res Ctr, Bethesda, MD 20084 USA.
[NIMH Collaborative HIV STD] NIMH, Bethesda, MD 20892 USA.
RP Maguina, JL (reprint author), Cayetano Heredia Peruvian Univ, Unit Hlth Sexual & Human Dev, Lima, Peru.
EM jorge.luis.maguina@upch.pe; kkonda@jhsph.edu
RI Lescano, Andres/B-8479-2008;
OI Lescano, Andres/0000-0001-9779-633X; Caceres, Carlos/0000-0002-8101-0790
FU FIC NIH HHS [D43 TW007393, 2D43 TW007393]; NIAID NIH HHS [R01 AI099727];
NIMH NIH HHS [U10 MH061536, R01 MH078752, U10 MH61536, K23 MH084611]
NR 57
TC 5
Z9 5
U1 0
U2 9
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1090-7165
J9 AIDS BEHAV
JI AIDS Behav.
PD JUN
PY 2013
VL 17
IS 5
BP 1724
EP 1733
DI 10.1007/s10461-012-0310-2
PG 10
WC Public, Environmental & Occupational Health; Social Sciences, Biomedical
SC Public, Environmental & Occupational Health; Biomedical Social Sciences
GA 150SZ
UT WOS:000319412800016
PM 23054035
ER
PT J
AU Harbertson, J
Grillo, M
Zimulinda, E
Murego, C
Brodine, S
May, S
Sebagabo, M
Araneta, MRG
Cronan, T
Shaffer, R
AF Harbertson, Judith
Grillo, Michael
Zimulinda, Eugene
Murego, Charles
Brodine, Stephanie
May, Susanne
Sebagabo, Marcellin
Araneta, Maria Rosario G.
Cronan, Terry
Shaffer, Richard
TI HIV Seroprevalence, Associated Risk Behavior, and Alcohol Use Among Male
Rwanda Defense Forces Military Personnel
SO AIDS AND BEHAVIOR
LA English
DT Article
DE HIV; Rwanda; Military; Sexual risk behavior; Alcohol
ID SEXUALLY-TRANSMITTED-DISEASES; MALE CIRCUMCISION; INFECTION; PREVENTION;
HIV/AIDS; ADHERENCE; KNOWLEDGE; EPIDEMIC; TRIAL; RAKAI
AB A cross-sectional study was conducted among active-duty male soldiers, aged a parts per thousand yen21 years, in the Rwanda Defense Forces (RDF) and included an anonymous behavioral survey and HIV rapid testing to determine risk factors associated with HIV seroprevalence. Overall prevalence was 2.6 % (95 % CI: 1.84-3.66); personnel who were divorced, separated or widowed, served a parts per thousand yen6 years, never deployed, uncircumcised, reported STI symptoms, had a parts per thousand yen6 lifetime sex partners, or screened positive for harmful alcohol use (via Alcohol Use Disorders Identification Test) had higher HIV prevalence. Ever being divorced, separated or widowed (OR = 29.8; 95 % CI: 5.5-159.9), and STI symptoms (OR = 3.4; 95 % CI: 1.5-7.6) were significantly associated with infection, after multivariable adjustment, while circumcision was protective (OR = 0.4; 95 % CI: 0.2-0.9). Despite mobility and other factors that uniquely influence HIV transmission in militaries, RDF prevalence was similar to the general population. A reason for this finding may be conservative sexual behavior combined with effective leadership-supported prevention programs. Data suggest a concentrated rather than generalized epidemic, with targets identified for intervention.
C1 [Harbertson, Judith; Grillo, Michael; Brodine, Stephanie; Shaffer, Richard] USN, Hlth Res Ctr, US Dept Def, HIV AIDS Prevent Program, San Diego, CA 92106 USA.
[Harbertson, Judith] Henry Jackson Fdn, Dept Epidemiol & Threat Assessment, US Mil HIV Res Program, Rockville, MD USA.
[Zimulinda, Eugene] US Embassy, Kigali, Rwanda.
[Murego, Charles; Sebagabo, Marcellin] Rwanda Def Forces, Kigali, Rwanda.
[May, Susanne] Univ Washington, Dept Biostat, Seattle, WA 98195 USA.
[Araneta, Maria Rosario G.] Univ Calif San Diego, Dept Family & Prevent Med, San Diego, CA 92103 USA.
[Cronan, Terry] San Diego State Univ, Dept Psychol, San Diego, CA 92182 USA.
RP Harbertson, J (reprint author), USN, Hlth Res Ctr, US Dept Def, HIV AIDS Prevent Program, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM judith.harbertson@med.navy.mil
FU PEPFAR
NR 31
TC 4
Z9 4
U1 0
U2 2
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1090-7165
J9 AIDS BEHAV
JI AIDS Behav.
PD JUN
PY 2013
VL 17
IS 5
BP 1734
EP 1745
DI 10.1007/s10461-012-0343-6
PG 12
WC Public, Environmental & Occupational Health; Social Sciences, Biomedical
SC Public, Environmental & Occupational Health; Biomedical Social Sciences
GA 150SZ
UT WOS:000319412800017
PM 23080360
ER
PT J
AU Cheng, X
Zhang, J
Ding, MD
Olmedo, O
Sun, XD
Guo, Y
Liu, Y
AF Cheng, X.
Zhang, J.
Ding, M. D.
Olmedo, O.
Sun, X. D.
Guo, Y.
Liu, Y.
TI INVESTIGATING TWO SUCCESSIVE FLUX ROPE ERUPTIONS IN A SOLAR ACTIVE
REGION
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE Sun: corona; Sun: coronal mass ejections (CMEs); Sun: flares; Sun:
magnetic topology
ID CORONAL MASS EJECTIONS; FORCE-FREE FIELDS; MAGNETIC-FIELD; TORUS
INSTABILITY; FLARES; EVOLUTION; MODEL; ONSET; ACCELERATION; MECHANISMS
AB We investigate two successive flux rope (FR1 and FR2) eruptions resulting in two coronal mass ejections (CMEs) on 2012 January 23. Both flux ropes (FRs) appeared as an EUV channel structure in the images of high temperature passbands of the Atmospheric Imaging Assembly prior to the CME eruption. Through fitting their height evolution with a function consisting of linear and exponential components, we determine the onset time of the FR impulsive acceleration with high temporal accuracy for the first time. Using this onset time, we divide the evolution of the FRs in the low corona into two phases: a slow rise phase and an impulsive acceleration phase. In the slow rise phase of FR1, the appearance of sporadic EUV and UV brightening and the strong shearing along the polarity inverse line indicates that the quasi-separatrix-layer reconnection likely initiates the slow rise. On the other hand, for FR2, we mainly contribute its slow rise to the FR1 eruption, which partially opened the overlying field and thus decreased the magnetic restriction. At the onset of the impulsive acceleration phase, FR1 (FR2) reaches the critical height of 84.4 +/- 11.2 Mm (86.2 +/- 13.0 Mm) where the decline of the overlying field with height is fast enough to trigger the torus instability. After a very short interval (similar to 2 minutes), the flare emission began to enhance. These results reveal the compound activity involving multiple magnetic FRs and further suggest that the ideal torus instability probably plays the essential role of initiating the impulsive acceleration of CMEs.
C1 [Cheng, X.; Zhang, J.; Ding, M. D.; Guo, Y.] Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China.
[Cheng, X.; Ding, M. D.; Guo, Y.] Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China.
[Zhang, J.] George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA.
[Olmedo, O.] USN, Res Lab, NRC, Washington, DC 20375 USA.
[Sun, X. D.] Stanford Univ, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Liu, Y.] Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.
RP Cheng, X (reprint author), Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China.
EM xincheng@nju.edu.cn
RI Cheng, Xin/G-6762-2011; Guo, Yang/A-9134-2012; Ding, Mingde/C-7787-2009;
Sun, Xudong/M-3245-2013;
OI Cheng, Xin/0000-0003-2837-7136; Guo, Yang/0000-0002-9293-8439; Sun,
Xudong/0000-0003-4043-616X; Liu, Ying/0000-0002-3483-5909
FU NSFC [10673004, 10828306, 10933003]; NKBRSF [2011CB811402]; NSF
[ATM-0748003, AGS-1156120]; NASA [NNG05GG19G]
FX We thank the referee, T. Torok, Y. M. Wang, C. L. Shen, R. Liu, K. Liu,
and P. F. Chen for their valuable comments and discussions. SDO is a
mission of NASA's Living With a Star Program. X. C., M. D. D., and Y. G.
are supported by NSFC under grants 10673004, 10828306, and 10933003 and
NKBRSF under grant 2011CB811402. J.Z. is supported by NSF grant
ATM-0748003, AGS-1156120 and NASA grant NNG05GG19G.
NR 50
TC 27
Z9 28
U1 0
U2 7
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 JUN 1
PY 2013
VL 769
IS 2
AR L25
DI 10.1088/2041-8205/769/2/L25
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 151JR
UT WOS:000319457300007
ER
PT J
AU Ling, J
Chizhik, D
Chen, CS
Valenzuela, RA
AF Ling, Jonathan
Chizhik, Dmitry
Chen, Chung Shue
Valenzuela, Reinaldo A.
TI Capacity Growth of Heterogeneous Cellular Networks
SO BELL LABS TECHNICAL JOURNAL
LA English
DT Article
AB Heterogeneous cellular networks are composed of a mixture of macro and small (pico) cells embedded in the macro network. We assume uniform traffic for simplicity, and study the scaling of area spectral efficiencies (ASEs) as pico densities are increased, optimizing over transmit power and cell association bias. We found that median ASE grows linearly with the number of picos, with a slope as low as one, i.e., only one picocell per macro sector is necessary to double median ASE. The pico must be placed intelligently rather than randomly, and needs only transmit at -20 dB power equivalent isotropic radiated power (EIRP) relative to the macro. The effectiveness of the pico at such low power is due in part to the improvement in area coverage of an omnidirectional versus a three-sectored antenna. As pico density increases five percentile, signal-to-noise and interference ratio (SINR) decreases, causing poor scaling of edge rates. However, cell association bias was found to be an effective means of restoring the otherwise poor scaling of fifth percentile rates. (C) 2013 Alcatel-Lucent.
C1 [Chizhik, Dmitry; Chen, Chung Shue] Bell Labs, Murray Hill, NJ 07974 USA.
[Chizhik, Dmitry] USN, Undersea Warfare Ctr, New London, CT USA.
[Chen, Chung Shue] Norwegian Univ Sci & Technol NTNU, Trondheim, Norway.
NR 10
TC 7
Z9 7
U1 0
U2 8
PU WILEY PERIODICALS, INC
PI SAN FRANCISCO
PA ONE MONTGOMERY ST, SUITE 1200, SAN FRANCISCO, CA 94104 USA
SN 1089-7089
J9 BELL LABS TECH J
JI Bell Labs Tech. J.
PD JUN
PY 2013
VL 18
IS 1
SI SI
BP 27
EP 40
DI 10.1002/bltj.21591
PG 14
WC Computer Science, Information Systems; Engineering, Electrical &
Electronic; Telecommunications
SC Computer Science; Engineering; Telecommunications
GA 154NP
UT WOS:000319683000003
ER
PT J
AU Mehrazin, R
Palazzi, KL
Kopp, RP
Colangelo, CJ
Stroup, SP
Masterson, JH
Liss, MA
Cohen, SA
Jabaji, R
Park, SK
Patterson, AL
L'Esperance, JO
Derweesh, IH
AF Mehrazin, Reza
Palazzi, Kerrin L.
Kopp, Ryan P.
Colangelo, Caroline J.
Stroup, Sean P.
Masterson, James H.
Liss, Michael A.
Cohen, Seth A.
Jabaji, Ramzi
Park, Samuel K.
Patterson, Anthony L.
L'Esperance, James O.
Derweesh, Ithaar H.
TI Impact of tumour morphology on renal function decline after partial
nephrectomy
SO BJU INTERNATIONAL
LA English
DT Article
DE renal cell carcinoma; chronic kidney disease; chronic renal
insufficiency; glomerular filtration rate; partial nephrectomy;
nephron-sparing surgery; renal function; RENAL nephrometry score
ID LAPAROSCOPIC PARTIAL NEPHRECTOMY; NEPHROMETRY SCORE; ISCHEMIC-INJURY;
RISK-FACTORS; OUTCOMES; KIDNEY; PREDICTION; RATES
AB Objective To examine the association of renal morphology with renal function after partial nephrectomy (PN).
Patients and Methods We conducted a multi-institutional retrospective analysis of 322 PNs performed between 2003 and 2011.
The RENAL nephrometry score for each lesion was determined and the estimated glomerular filtration rate (eGFR) was calculated preoperatively and at last follow-up.
We divided patients into two RENAL nephrometry score groups, low (<8) and high (8), and analysed and compared the outcomes of each group.
The primary outcome was median change in eGFR between preoperative and last follow-up (eGFR). The secondary outcome was eGFR <60mL/min/1.73m2 at last follow-up.
Multivariable analysis was conducted to evaluate the risk factors for eGFR <60mL/min/1.73m2 at last follow-up.
Results The median (interquartile range) follow-up was 25.2 (13.5-39.3) months. Low (n = 165) and high (n = 157) RENAL score groups were well-matched for baseline eGFR. The median tumour size (4.2 vs 2.4cm, P < 0.001) was greater for the high group.
In all, 64% of the low and 88.2% of the high RENAL score group (P < 0.001) had decreased eGFR at last follow-up.
Median eGFR was -7 for the low vs -13.8mL/min/1.73m2 for the high group (P = 0.001); eGFR <60mL/min/1.73m2 at last follow-up was 27.3% for the low vs 37.6% for the high group (P = 0.057).
Linear regression analysis showed that for each 1-point increase in RENAL score, there was 2.5% decrease in eGFR (P = 0.002); for each 1-cm increase in tumour size, there was 1.8% decrease in eGFR (P = 0.013). Area under curve analyses showed no significant difference between RENAL score and tumour size for prediction of de novoeGFR <60mL/min/1.73m2 (P = 0.920) and eGFR 50% (P = 0.85).
Multivariable analysis showed that increasing RENAL score (odds ratio [OR] 1.24, P = 0.046) and decreasing preoperative eGFR (OR 1.10, P < 0.001) were risk factors for eGFR <60mL/min/1.73m2 at last follow-up.
Conclusions Increasing RENAL nephrometry score is an independent risk factor for eGFR <60mL/min/1.73m2 after PN.
RENAL nephrometry score may serve as an additional measure for risk stratification before PN, but further investigation is required.
C1 [Mehrazin, Reza; Patterson, Anthony L.] Univ Tennessee, Ctr Hlth Sci, Dept Urol, Memphis, TN 38163 USA.
[Palazzi, Kerrin L.; Kopp, Ryan P.; Colangelo, Caroline J.; Stroup, Sean P.; Liss, Michael A.; Cohen, Seth A.; Jabaji, Ramzi; Park, Samuel K.; Derweesh, Ithaar H.] Univ Calif San Diego, Sch Med, Dept Surg, Div Urol, La Jolla, CA 92093 USA.
[Stroup, Sean P.; Masterson, James H.; L'Esperance, James O.] USN, Dept Urol, San Diego Med Ctr, San Diego, CA 92152 USA.
RP Derweesh, IH (reprint author), Moores UCSD Canc Ctr, Div Urol, 3855 Hlth Sci Dr,Mail Code 0987, La Jolla, CA 92093 USA.
EM iderweesh@gmail.com
NR 34
TC 13
Z9 13
U1 0
U2 2
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1464-4096
J9 BJU INT
JI BJU Int.
PD JUN
PY 2013
VL 111
IS 8
BP E374
EP E382
DI 10.1111/bju.12149
PG 9
WC Urology & Nephrology
SC Urology & Nephrology
GA 152GW
UT WOS:000319520800014
PM 23714649
ER
PT J
AU Carstairs, SD
Suchard, JR
Smith, T
Simon, LV
Kalynych, CJ
Shimada, M
Tanen, DA
AF Carstairs, S. D.
Suchard, J. R.
Smith, T.
Simon, L. V.
Kalynych, C. J.
Shimada, M.
Tanen, D. A.
TI Contribution of serum ethanol concentration to the osmol gap: a
prospective volunteer study
SO CLINICAL TOXICOLOGY
LA English
DT Article
DE Osmol gap; Ethanol; Intoxication
ID FORMULA; INTOXICATION; VALIDATION; CALCULATE
AB Background. The contribution of ethanol ([EtOH]) to the osmol gap (OG) is commonly described by the formula [EtOH (mg/dL)]/k, where k is assumed to be 4.6 (one-tenth of its molecular weight) if ethanol behaves ideally in solution. However, several studies on convenience samples of patients suggest that ethanol does not behave ideally and that k may be significantly different from this ideal constant. Objectives. To determine prospectively the relationship between serum ethanol concentration and total serum osmolality in a group of healthy volunteers. Methods. Experimental subjects ingested 20 mL of 100% ethanol diluted in sugar-free soda at a rate of one drink every 10 min, up to a maximum of seven drinks. Control subjects ingested 20 mL of water diluted in sugar-free soda at the same rate. Blood samples were obtained at baseline and then at every 20 min for 180 min to measure serum [EtOH] concentration, electrolytes, glucose, and osmolality (via freezing-point depression). The OG was calculated by subtracting predicted osmolality from measured osmolality. The OG was then divided by [EtOH] to determine the coefficient of ethanol's contribution to total serum osmolality. Results. A total of 10 volunteers (five men and five women; mean age, 38.8 years, and range, 28-49 years) participated in and completed the study. Eight (four male and four female) were in the experimental group, and two (one male and one female) were in the control group. Mean peak [EtOH] was 229 mg/dL (median, 223.5 mg/dL; IQR, 171-273 mg/dL) and a linear relationship between [EtOH] and OG (Pearson coefficient of 0.98) was found. Using covariate correction for each subject's baseline OG, k was calculated to be 4.25 (95% CI, 4.13-4.38) averaged over all participants. Conclusions. In this volunteer study, the coefficient describing the contribution of ethanol to serum osmolality (k) was found to be 4.25. This indicates that ethanol contributes more to total serum osmolality than would be predicted for an ideal solute.
C1 [Carstairs, S. D.; Tanen, D. A.] USN, Med Ctr, Dept Emergency Med, San Diego, CA 92134 USA.
[Suchard, J. R.] Univ Calif Irvine, Med Ctr, Dept Emergency Med, Orange, CA USA.
[Smith, T.; Simon, L. V.; Kalynych, C. J.] Univ Florida, Coll Med, Dept Emergency Med, Jacksonville, FL 90034 USA.
[Shimada, M.] Univ Tokyo, Tokyo, Japan.
RP Carstairs, SD (reprint author), USN, Med Ctr, Dept Emergency Med, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
EM shaunc@yahoo.com
OI Carstairs, Shaun/0000-0003-4558-9704
NR 10
TC 3
Z9 3
U1 0
U2 4
PU INFORMA HEALTHCARE
PI NEW YORK
PA 52 VANDERBILT AVE, NEW YORK, NY 10017 USA
SN 1556-3650
J9 CLIN TOXICOL
JI Clin. Toxicol.
PD JUN
PY 2013
VL 51
IS 5
BP 398
EP 401
DI 10.3109/15563650.2013.791695
PG 4
WC Toxicology
SC Toxicology
GA 150TD
UT WOS:000319413200003
PM 23641935
ER
PT J
AU Deschamps, JR
Cannizzo, LF
Straessler, NA
AF Deschamps, Jeffrey R.
Cannizzo, Louis F.
Straessler, Nicholas A.
TI Structure of 1-tert-Butyl-3-hydroxymethyl-3-nitroazetidine and
1-Bromoacetyl-3,3-dinitroazetidine, an Investigative Anticancer Agent
Derived from Energetic Materials
SO JOURNAL OF CHEMICAL CRYSTALLOGRAPHY
LA English
DT Article
DE 1-Bromoacetyl-3,3-dinitroazetidine; ABDNAZ;
1-tert-Butyl-3-hydroxymethyl-3-nitroazetidine; Anticancer energetic
materials; Nitrogen-heterocycle
ID 1,3,3-TRINITROAZETIDINE; SALTS
AB The structures of a novel investigative anticancer agent 1-bromoacetyl-3,3-dinitro azetidine (ABDNAZ, 2) and its synthetic precursor 1-tert-butyl-3-hydroxymethyl-3-nitroazetidine (1) were determined by single crystal X-ray diffraction. The data show that the chemical transformation from 1 to 2 resulted in an increase in crystal density of 0.725 Mg/m(3) (1 = 1.232 Mg/m(3); 2 = 1.957 Mg/m(3)). The azetidine ring of 1 is puckered while 2 is planar, consistent with sp(2) hybridization of the ring nitrogen following conversion of the tertiary amine to an amide. The structural information will aid in elucidating the biological activity of 2.
C1 [Deschamps, Jeffrey R.] USN, Res Lab, Washington, DC 20375 USA.
[Cannizzo, Louis F.; Straessler, Nicholas A.] ATK Aerosp Syst, Res & Dev, Brigham City, UT 84302 USA.
RP Deschamps, JR (reprint author), USN, Res Lab, Code 6930,4555 Overlook Ave, Washington, DC 20375 USA.
EM deschamps@nrl.navy.mil
RI G, Neela/H-3016-2014;
OI Deschamps, Jeffrey/0000-0001-5845-0010
FU Naval Research Laboratory; Office of Naval Research
FX X-ray crystallographic studies were supported in part by the Naval
Research Laboratory and the Office of Naval Research. The bioactivity
and therapeutic applications of compound 2 are being investigated by
RadioRx, Inc. (http://www.radiorx.com, Menlo Park, CA).
NR 13
TC 1
Z9 1
U1 0
U2 10
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1074-1542
J9 J CHEM CRYSTALLOGR
JI J. Chem. Crystallogr.
PD JUN
PY 2013
VL 43
IS 6
BP 306
EP 309
DI 10.1007/s10870-013-0421-2
PG 4
WC Crystallography; Spectroscopy
SC Crystallography; Spectroscopy
GA 151AD
UT WOS:000319432100004
ER
PT J
AU Carrica, PM
Ismail, F
Hyman, M
Bhushan, S
Stern, F
AF Carrica, Pablo M.
Ismail, Farzad
Hyman, Mark
Bhushan, Shanti
Stern, Frederick
TI Turn and zigzag maneuvers of a surface combatant using a URANS approach
with dynamic overset grids
SO JOURNAL OF MARINE SCIENCE AND TECHNOLOGY
LA English
DT Article
DE Ship maneuvers; 6DOF; URANS; Surface combatant; Dynamic overset grids
ID PHASE LEVEL SET; SHIP; FLOWS; SIMULATION; PROPELLER; WORKSHOP; MODEL
AB Unsteady Reynolds averaged Navier-Stokes (URANS) computations of standard maneuvers are performed for a surface combatant at model and full scale. The computations are performed using CFDShip-Iowa v4, a free surface solver designed for 6DOF motions in free and semi-captive problems. Overset grids and a hierarchy of bodies allow the deflection of the rudders while the ship undergoes 6DOF motions. Two types of maneuvers are simulated: steady turn and zigzag. Simulations of steady turn at 35A degrees rudder deflection and zigzag 20/20 maneuvers for Fr = 0.25 and 0.41 using constant RPM propulsion are benchmarked against experimental time histories of yaw, yaw rate and roll, and trajectories, and also compared against available integral variables. Differences between CFD and experiments are mostly within 10 % for both maneuvers, highly satisfactory given the degree of complexity of these computations. Simulations are performed also with waves, and with propulsion at either constant RPM or torque. 20/20 zigzag maneuvers are simulated at model and full scale for Fr = 0.41. The full scale case produces a thinner boundary layer profile compared to the model scale with different reaction times and handling needed for maneuvering. Results indicate that URANS computations of maneuvers are feasible, though issues regarding adequate modeling of propellers remain to be solved.
C1 [Carrica, Pablo M.; Stern, Frederick] Univ Iowa, IIHR Hydrosci & Engn, Iowa City, IA 52242 USA.
[Ismail, Farzad] Univ Sains Malaysia, Sch Aerosp Engn, George Town 14300, Malaysia.
[Hyman, Mark] USN, Ctr Surface Warfare, Panama City, FL 32407 USA.
[Bhushan, Shanti] Mississippi State Univ, Ctr Adv Vehicular Syst, Starkville, MS 39762 USA.
RP Carrica, PM (reprint author), Univ Iowa, IIHR Hydrosci & Engn, Iowa City, IA 52242 USA.
EM pcarrica@engineering.uiowa.edu
FU Office of Naval Research [N00014-01-1-0073]
FX This research was sponsored by Office of Naval Research grant
N00014-01-1-0073 under the administration of Dr. Patrick Purtell.
Computations were performed on the IBM Power 5 at the Department of
Defense NAVO Major Shared Resource Center and on the SGI Altix 4700 at
the NASA Advanced Supercomputing Division.
NR 34
TC 14
Z9 15
U1 0
U2 21
PU SPRINGER JAPAN KK
PI TOKYO
PA CHIYODA FIRST BLDG EAST, 3-8-1 NISHI-KANDA, CHIYODA-KU, TOKYO, 101-0065,
JAPAN
SN 0948-4280
J9 J MAR SCI TECH-JAPAN
JI J. Mar. Sci. Technol.
PD JUN
PY 2013
VL 18
IS 2
BP 166
EP 181
DI 10.1007/s00773-012-0196-8
PG 16
WC Engineering, Marine; Engineering, Civil
SC Engineering
GA 153BD
UT WOS:000319575200002
ER
PT J
AU Jiang, QF
Doyle, JD
Reinecke, A
Smith, RB
Eckermann, SD
AF Jiang, Qingfang
Doyle, James D.
Reinecke, Alex
Smith, Ronald B.
Eckermann, Stephen D.
TI A Modeling Study of Stratospheric Waves over the Southern Andes and
Drake Passage
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Article
ID RAY-TRACING MODEL; GRAVITY-WAVE; MOUNTAIN WAVES; NUMERICAL SIMULATIONS;
MIDDLE ATMOSPHERE; RADIOSONDE OBSERVATIONS; MOMENTUM FLUX; POLAR VORTEX;
MESOSCALE; PROPAGATION
AB Large-amplitude stratospheric gravity waves over the southern Andes and Drake Passage, as observed by the Atmospheric Infrared Sounder (AIRS) on 8-9 August 2010, are modeled and studied using a deep (0-70 km) version of the Coupled Ocean-Atmosphere Mesoscale Prediction System (COAMPS) model. The simulated tropospheric waves are generated by flow over the high central Andes ridge and the Patagonian peaks in the southern Andes. Some waves emanating from Patagonia propagate southeastward across Drake Passage into the stratosphere over a horizontal distance of more than 1000 km. The wave momentum flux is characterized by a tropospheric maximum over Patagonia that splits into two comparable maxima in the stratosphere: one located directly over the terrain and the other tilting southward with altitude.
Using spatial ray-tracing techniques and flow conditions derived from the numerical simulation, the authors find that waves that originate from the high ridge in the Central Andes are absorbed by a critical level in the lower stratosphere. The three-dimensional waves originating from Patagonia could be separated into three families-namely, a northeast-propagating family, which is absorbed by a critical level between 15 and 20 km; a localized family, which breaks down in the stratosphere and lower mesosphere directly above Patagonia; and a southeast-propagating family, which forms the observed linear stratospheric wave patterns oriented across Drake Passage. The southward group propagation, assisted by lateral wave refraction due to persistent meridional shear of the zonal winds, leads to stratospheric wave breaking and drag near 60 degrees S, well south of the parent orography.
C1 [Jiang, Qingfang; Doyle, James D.; Reinecke, Alex] USN, Res Lab, Monterey, CA 93940 USA.
[Smith, Ronald B.] Yale Univ, Dept Geol, New Haven, CT USA.
[Eckermann, Stephen D.] USN, Res Lab, Washington, DC 20375 USA.
RP Jiang, QF (reprint author), USN, Res Lab, 7 Grace Hopper Ave, Monterey, CA 93940 USA.
EM jiang@nrlmry.navy.mil
FU NRL Base 6.1 Program [PE 0601153N]; NASA [NRA NNNH09ZDA001N-TERRAQUA];
NASA (The Science of Terra and Aqua) [NNH11AQ99I]
FX This research is supported by the Chief of Naval Research through the
NRL Base 6.1 Program by PE 0601153N. SDE acknowledges additional support
from NASA (NRA NNNH09ZDA001N-TERRAQUA, The Science of Terra and Aqua,
Grant NNH11AQ99I). The simulations were made using the Coupled
Ocean-Atmospheric Mesoscale Prediction System (COAMPS) developed by U.S.
Naval Research Laboratory. Computational resources were supported by a
grant of HPC time from the Department of Defense Major Shared Resource
Centers. The authors gratefully acknowledge helpful comments and
suggestions from two anonymous reviewers.
NR 62
TC 13
Z9 13
U1 1
U2 10
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0022-4928
EI 1520-0469
J9 J ATMOS SCI
JI J. Atmos. Sci.
PD JUN
PY 2013
VL 70
IS 6
BP 1668
EP 1689
DI 10.1175/JAS-D-12-0180.1
PG 22
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 154IP
UT WOS:000319668400010
ER
PT J
AU Cook, DE
Strong, PA
Garrett, SA
Marshall, RE
AF Cook, D. E.
Strong, P. A.
Garrett, S. A.
Marshall, R. E.
TI A small unmanned aerial system (UAS) for coastal atmospheric research:
preliminary results from New Zealand
SO JOURNAL OF THE ROYAL SOCIETY OF NEW ZEALAND
LA English
DT Article
DE UAS; UAV; coastal atmosphere; intercomparison; radiosonde; temperature;
humidity; marine meteorology; New Zealand
ID AIRCRAFT; AEROSONDE
AB Experiments conducted in the low-altitude coastal atmosphere in New Zealand have demonstrated the potential of a new unmanned aerial system (UAS) for meteorological research. The Kahu unmanned aerial vehicle flies autonomously using GPS and pre-programmed waypoints, collecting observations of air temperature and relative humidity that are relayed to a ground-station near-instantaneously. Experiments conducted in the Hauraki Gulf, Auckland, show that the Kahu's radio transmission system can successfully transmit data across the ocean surface at distances up to 25 km. Accuracy of the meteorological data collected by the UAS was assessed via a direct comparison with weather station sensors and radiosonde soundings at heights of up to 500 m in the Bay of Plenty. Close agreement between the UAS, radiosonde and weather station data suggests that the Kahu UAS has considerable scope as a new field research tool in New Zealand, capable of providing reliable atmospheric data that can complement and even supplement conventional low-altitude sampling techniques.
C1 [Cook, D. E.] Australian Catholic Univ, Sch Arts & Sci, Sydney, NSW, Australia.
[Strong, P. A.; Garrett, S. A.] Def Technol Agcy, Auckland, New Zealand.
[Marshall, R. E.] USN, Ctr Surface Warfare, Dahlgren Div, Dahlgren, VA 22448 USA.
RP Cook, DE (reprint author), Australian Catholic Univ, Sch Arts & Sci, Sydney, NSW, Australia.
EM duncan.cook@acu.edu.au
OI Cook, Duncan/0000-0001-5270-4569
FU Office of Naval Research (USA) [0602271N]
FX We should like to thank our colleagues at the Defence Technology Agency
for their assistance in planning and completing the Kahu UAS field
experiments. Mr Daniel Ashman contributed to the integration of the
meteorological sensors with the airframe and autopilot and was also the
UAV operator for flights in the Bay of Plenty. Additional funding and
support for this research from the Office of Naval Research (USA)
(Program Element 0602271N) is greatly appreciated. Meteorological
equipment used in this study was supplied by the Defence Technology
Agency, the New Zealand Met Service (Paraparaumu) and the School of
Artillery of the New Zealand Army. Finally, we are grateful to Mr Ian
Whaley and two anonymous reviewers for providing thoughtful comments and
suggestions on an earlier version of this paper.
NR 18
TC 1
Z9 1
U1 2
U2 22
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0303-6758
J9 J ROY SOC NEW ZEAL
JI J. R. Soc. N.Z.
PD JUN 1
PY 2013
VL 43
IS 2
BP 108
EP 115
DI 10.1080/03036758.2012.695280
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 154DK
UT WOS:000319651500005
ER
PT J
AU Jaskoski, M
AF Jaskoski, Maiah
TI Violence, Coercion, and State-Making in Twentieth-Century Mexico
SO PERSPECTIVES ON POLITICS
LA English
DT Book Review
C1 [Jaskoski, Maiah] USN, Postgrad Sch, Stennis Space Ctr, MS 39529 USA.
RP Jaskoski, M (reprint author), USN, Postgrad Sch, Stennis Space Ctr, MS 39529 USA.
NR 1
TC 0
Z9 0
U1 1
U2 4
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 1537-5927
J9 PERSPECT POLIT
JI Perspect. Polit.
PD JUN
PY 2013
VL 11
IS 2
BP 688
EP 691
PG 4
WC Political Science
SC Government & Law
GA 153RA
UT WOS:000319619000105
ER
PT J
AU Jaskoski, M
AF Jaskoski, Maiah
TI Power, Institutions, and Leadership in War and Peace: Lessons from Peru
and Ecuador, 1995-1998
SO PERSPECTIVES ON POLITICS
LA English
DT Book Review
C1 [Jaskoski, Maiah] USN, Postgrad Sch, Stennis Space Ctr, MS 39529 USA.
RP Jaskoski, M (reprint author), USN, Postgrad Sch, Stennis Space Ctr, MS 39529 USA.
NR 1
TC 0
Z9 0
U1 0
U2 2
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 1537-5927
J9 PERSPECT POLIT
JI Perspect. Polit.
PD JUN
PY 2013
VL 11
IS 2
BP 688
EP 691
PG 4
WC Political Science
SC Government & Law
GA 153RA
UT WOS:000319619000104
ER
PT J
AU Jaskoski, M
AF Jaskoski, Maiah
TI In the Wake of War: Democratization and Internal Armed Conflict in Latin
America
SO PERSPECTIVES ON POLITICS
LA English
DT Book Review
C1 [Jaskoski, Maiah] USN, Postgrad Sch, Stennis Space Ctr, MS 39529 USA.
RP Jaskoski, M (reprint author), USN, Postgrad Sch, Stennis Space Ctr, MS 39529 USA.
NR 1
TC 0
Z9 0
U1 0
U2 1
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 1537-5927
J9 PERSPECT POLIT
JI Perspect. Polit.
PD JUN
PY 2013
VL 11
IS 2
BP 688
EP 691
PG 4
WC Political Science
SC Government & Law
GA 153RA
UT WOS:000319619000103
ER
PT J
AU Eberle, CJ
AF Eberle, Christopher J.
TI Comments on Carnahan, Anderson, and Wolterstorff
SO PHILOSOPHIA
LA English
DT Article
DE Religion and politics; Public reason liberalism; Religious freedom;
Fallibilism
AB In this paper, I reflect on a number of issues raised in Kevin Carnahan's "Religion, and not just Religious Reasons, in the Public Square: A Consideration of Robert Audi's and Nicholas Wolterstorff's Religion in the Public Square" and Eric A. Anderson's "Religiously Conservative Citizens and the Ideal of Conscientious Engagement: A Comment on Wolterstorff and Eberle." In response to Carnahan, I argue that recent discussions of the proper public role of religious reason do not depend on an objectionable conception of religion. I also respond to Anderson's concern that my "ideal of conscientious engagement" is an insufficiently robust alternative to public reason liberalism.
C1 USN Acad, Dept Leadership Eth & Law, Annapolis, MD 21402 USA.
RP Eberle, CJ (reprint author), USN Acad, Dept Leadership Eth & Law, Annapolis, MD 21402 USA.
EM eberle@usna.edu
NR 3
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0048-3893
J9 PHILOSOPHIA
JI Philosophia
PD JUN
PY 2013
VL 41
IS 2
BP 437
EP 445
DI 10.1007/s11406-013-9442-5
PG 9
WC Philosophy
SC Philosophy
GA 149YW
UT WOS:000319358300014
ER
PT J
AU Liss, MA
Palazzi, K
Stroup, SP
Jabaji, R
Raheem, OA
Kane, CJ
AF Liss, Michael A.
Palazzi, Kerrin
Stroup, Sean P.
Jabaji, Ramzi
Raheem, Omer A.
Kane, Christopher J.
TI Outcomes and complications of pelvic lymph node dissection during
robotic-assisted radical prostatectomy
SO WORLD JOURNAL OF UROLOGY
LA English
DT Article
DE Prostate cancer; Lymph node; Robotic; Da Vinci; Lymphadenectomy
ID ADEQUATE STAGING PROCEDURE; RETROPUBIC PROSTATECTOMY; CANCER;
LYMPHADENECTOMY; SURVIVAL; PROGRESSION; RISK; MEN
AB Describe the outcomes and complications of patients who underwent standard pelvic lymphadenectomy (SPLND) and extended PLND (EPLND), or who did not undergo PLND (non-PLND) at the time of robotic-assisted laparoscopic radical prostatectomy (RALP).
Retrospective analysis of prospectively collected longitudinal data of 492 RALPs performed by a single surgeon (Kane) over a 5-year period. Patients are subdivided into three treatment groups: 54 EPLND; 231 SPLND; and 207 non-PLND. Indications for EPLND include Gleason score a parts per thousand yen8, PSA a parts per thousand yen10 ng/mL, and higher D'Amico risk group. Patient demographics, perioperative complications, and short-term oncologic outcomes are compared.
Patients who underwent EPLND had higher-risk prostate cancer as evidenced by higher mean PSA (8.5 ng/mL), biopsy Gleason sum (a parts per thousand yen8) (57.7 %), and D'Amico risk group (75.9 %), compared to SPLND and/or non-PLND groups (p a parts per thousand currency sign 0.001). The EPLND total lymph node yield was similar compared to SPLND (20 vs. 18; p = 0.070). When the EPLND (n = 41) and SPLND (n = 57) were examined among only high-risk patients, the lymph node (IQR) yields [20 (14-29) vs. 17 (12-23)] and the proportion of positive nodes [29.3 % (12/41) vs. 12.3 % (7/57)] differed significantly (p = 0.048 and p = 0.042, respectively). Complication rates for all groups were similar and lymphocele formation was 5 %; 2.5 % were clinically significant.
Robotic PLND can be performed with nodal yield comparable to open or laparoscopic PLND. Robotic EPLND improves nodal yield and the proportion of high-risk patients with nodal metastases recognized. Robotic PLND is associated with an approximately 5 % lymphocele rate. There is no difference in complications between EPLND and SPLND.
C1 [Liss, Michael A.; Palazzi, Kerrin; Jabaji, Ramzi; Raheem, Omer A.; Kane, Christopher J.] UC San Diego Hlth Syst, Dept Surg, Div Urol, San Diego, CA 92103 USA.
[Stroup, Sean P.] USN, San Diego Med Ctr, San Diego, CA 92152 USA.
[Kane, Christopher J.] Vet Affairs San Diego Healthcare Syst, La Jolla, CA USA.
RP Kane, CJ (reprint author), UC San Diego Hlth Syst, Dept Surg, Div Urol, 200 West Arbor Dr 8897, San Diego, CA 92103 USA.
EM ckane@ucsd.edu
NR 32
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Z9 18
U1 0
U2 3
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0724-4983
J9 WORLD J UROL
JI World J. Urol.
PD JUN
PY 2013
VL 31
IS 3
BP 481
EP 488
DI 10.1007/s00345-013-1056-9
PG 8
WC Urology & Nephrology
SC Urology & Nephrology
GA 149YM
UT WOS:000319357300009
PM 23512231
ER
PT J
AU Adams, AA
Charles, PT
Veitch, SP
Hanson, A
Deschamps, JR
Kusterbeck, AW
AF Adams, Andre A.
Charles, Paul T.
Veitch, Scott P.
Hanson, Alfred
Deschamps, Jeffrey R.
Kusterbeck, Anne W.
TI REMUS100 AUV with an integrated microfluidic system for explosives
detection
SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY
LA English
DT Article
DE Remote sensing; Explosives; Microfluidics; Autonomous underwater
vehicles; Displacement-based immunoassay
ID UNDERWATER; 2,4,6-TRINITROTOLUENE
AB Quantitating explosive materials at trace concentrations in real-time on-site within the marine environment may prove critical to protecting civilians, waterways, and military personnel during this era of increased threat of widespread terroristic activity. Presented herein are results from recent field trials that demonstrate detection and quantitation of small nitroaromatic molecules using novel high-throughput microfluidic immunosensors (HTMI) to perform displacement-based immunoassays onboard a HYDROID REMUS100 autonomous underwater vehicle. Missions were conducted 2-3 m above the sea floor, and no HTMI failures were observed due to clogging from biomass infiltration. Additionally, no device leaks were observed during the trials. HTMIs maintained immunoassay functionality during 2 h deployments, while continuously sampling seawater absent without any pretreatment at a flow rate of 2 mL/min. This 20-fold increase in the nominal flow rate of the assay resulted in an order of magnitude reduction in both lag and assay times. Contaminated seawater that contained 20-175 ppb trinitrotoluene was analyzed.
C1 [Adams, Andre A.; Charles, Paul T.; Deschamps, Jeffrey R.; Kusterbeck, Anne W.] USN, Res Lab, Ctr Bio Mol Sci & Engn Code 6900, Washington, DC 20375 USA.
[Veitch, Scott P.; Hanson, Alfred] Univ Rhode Isl, SubChem Syst, Narragansett, RI 02882 USA.
RP Adams, AA (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn Code 6900, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM andre.adams@nrl.navy.mil; paul.charles@nrl.navy.mil;
veitchsp@subchem.com; hanson@subchem.com; jeff.deschamps@nrl.navy.mil;
anne.kusterbeck@nrl.navy.mil
OI Adams, Andre/0000-0002-2979-249X; Deschamps, Jeffrey/0000-0001-5845-0010
FU National Academy of Sciences; National Research Council; Office of Naval
Research Core 6.2
FX The authors would like to thank the University of Rhode Island's
Graduate School of Oceanography for providing the R/V McMaster vessel
and crew that was used in the field trials. The authors thank Michael
Daniele for providing the assay illustration. We also thank the National
Academy of Sciences, National Research Council, and the Office of Naval
Research Core 6.2 for supporting this effort. The views expressed here
represent those of the author and do not reflect those of NRL, the Navy,
or the Department of Defense.
NR 20
TC 2
Z9 2
U1 2
U2 34
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1618-2642
J9 ANAL BIOANAL CHEM
JI Anal. Bioanal. Chem.
PD JUN
PY 2013
VL 405
IS 15
BP 5171
EP 5178
DI 10.1007/s00216-013-6853-x
PG 8
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 147LM
UT WOS:000319168500015
PM 23539095
ER
PT J
AU Baum, M
Kim, H
Alexeev, I
Pique, A
Schmidt, M
AF Baum, M.
Kim, H.
Alexeev, I.
Pique, A.
Schmidt, M.
TI Generation of transparent conductive electrodes by laser consolidation
of LIFT printed ITO nanoparticle layers
SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
LA English
DT Article
ID OXIDE THIN-FILMS; LOW-TEMPERATURE; FABRICATION
AB Indium tin oxide (ITO) is one of the few materials available that display a high transparency in the visible wavelength region and at the same time can conduct electrical currents. Thus it is widespread in many optoelectronic applications such as displays or solar cells. Layers of this material are commonly deposited by vacuum deposition methods which are not compatible with inexpensive production methods such as roll-to-roll processing or printed electronics in general. In this work, we demonstrate the generation of arbitrarily shaped ITO layers by laser induced forward transfer of ITO nanoparticles. The transferred particle ink volumes range in the sub picoliter regime. Feature sizes as small as 20 mu m are produced without any outward flow or "coffee-stain" effects. Furthermore, the feasibility of excimer laser consolidation of these nanoparticulate layers in ambient air for the generation of dense ITO films is shown. Conductivities of over 4000 Omega(-1) m(-1) were achieved. The presented methods are a promising alternative for the generation of transparent conducting layers for the inexpensive production of optoelectronics.
C1 [Baum, M.; Alexeev, I.; Schmidt, M.] Univ Erlangen Nurnberg, Inst Photon Technol, D-91052 Erlangen, Germany.
[Baum, M.; Alexeev, I.; Schmidt, M.] Univ Erlangen Nurnberg, Erlangen Grad Sch Adv Opt Technol SAOT, D-91052 Erlangen, Germany.
[Kim, H.; Pique, A.] USN, Res Lab, Washington, DC 20375 USA.
RP Baum, M (reprint author), Univ Erlangen Nurnberg, Inst Photon Technol, Paul Gordan Str 3, D-91052 Erlangen, Germany.
EM marcus.baum@lpt.uni-erlangen.de
RI Schmidt, Michael/K-1407-2013
OI Schmidt, Michael/0000-0002-8072-8768
FU Deutsche Forschungsgemeinschaft (DFG) [Graduiertenkolleg 1161/2]; Evonik
Industries AG; Erlangen Graduate School in Advanced Optical Technologies
(SAOT) by the German Research Foundation (DFG) in the framework of the
German excellence initiative; Office of Naval Research (ONR)
FX The support of the Deutsche Forschungsgemeinschaft (DFG,
Graduiertenkolleg 1161/2) is gratefully acknowledged. Additionally, we
are thankful for the support by Evonik Industries AG and also for the
production of the particle suspensions by Daniel Kilian at the Institute
of Particle Technology at the University of Erlangen. Moreover, the
authors gratefully acknowledge funding of the Erlangen Graduate School
in Advanced Optical Technologies (SAOT) by the German Research
Foundation (DFG) in the framework of the German excellence initiative as
well as the support from the Office of Naval Research (ONR).
NR 19
TC 13
Z9 13
U1 0
U2 43
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0947-8396
J9 APPL PHYS A-MATER
JI Appl. Phys. A-Mater. Sci. Process.
PD JUN
PY 2013
VL 111
IS 3
BP 799
EP 805
DI 10.1007/s00339-013-7646-y
PG 7
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 146CD
UT WOS:000319065500015
ER
PT J
AU Crum-Cianflone, N
AF Crum-Cianflone, Nancy
TI Critical Crossroads in the Care of Human Immunodeficiency Virus-Infected
Persons
SO CRITICAL CARE MEDICINE
LA English
DT Editorial Material
DE critical care; HIV; hospitalization; ICU; mortality; outcomes
ID ACTIVE ANTIRETROVIRAL THERAPY; GENERAL-POPULATION; LIFE EXPECTANCY;
RISK-FACTORS; HIV; ERA; UNIT; SURVIVAL; INDIVIDUALS; ADMISSION
C1 USN, Dept Infect Dis, San Diego Med Ctr, Dept Deployment Hlth Res,Hlth Res Ctr, San Diego, CA 92152 USA.
RP Crum-Cianflone, N (reprint author), USN, Dept Infect Dis, San Diego Med Ctr, Dept Deployment Hlth Res,Hlth Res Ctr, San Diego, CA 92152 USA.
NR 18
TC 0
Z9 0
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0090-3493
J9 CRIT CARE MED
JI Crit. Care Med.
PD JUN
PY 2013
VL 41
IS 6
BP 1579
EP 1580
DI 10.1097/CCM.0b013e31828044d2
PG 2
WC Critical Care Medicine
SC General & Internal Medicine
GA 148TC
UT WOS:000319269400048
PM 23685582
ER
PT J
AU Marquis, FDS
AF Marquis, Fernand D. S.
TI Powder Materials, Processes, and Systems for Enhanced Performance in
Multifunctional Applications
SO JOM
LA English
DT Editorial Material
C1 [Marquis, Fernand D. S.] USN, Dept Syst Engn, Postgrad Sch, Monterey, CA 93943 USA.
[Marquis, Fernand D. S.] USN, Wayne Meyer Inst Syst Engn, Postgrad Sch, Monterey, CA 93943 USA.
RP Marquis, FDS (reprint author), USN, Dept Syst Engn, Postgrad Sch, Monterey, CA 93943 USA.
EM fdmarqui@nps.edu
NR 0
TC 0
Z9 0
U1 0
U2 3
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1047-4838
J9 JOM-US
JI JOM
PD JUN
PY 2013
VL 65
IS 6
BP 687
EP 689
DI 10.1007/s11837-013-0613-4
PG 3
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering; Mineralogy; Mining & Mineral Processing
SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy;
Mining & Mineral Processing
GA 146CY
UT WOS:000319067900004
ER
PT J
AU Chikhradze, NM
Marquis, FDS
Abashidze, GS
Kurdadze, L
AF Chikhradze, N. M.
Marquis, F. D. S.
Abashidze, G. S.
Kurdadze, L.
TI Development and Performance of New Gadolinium and Boron Containing
Radiation-Absorbing Composite Systems
SO JOM
LA English
DT Article
AB The theoretical design and the experimental design and development of multifunctional radiation-absorbing composite material systems based on gadolinium, boron, and tungsten has been carried out. Based on theoretical calculations, the effective compositions of these composite subsystems were established for the enhanced absorption of neutron and gamma irradiation in various energy spectra. In addition, the systems and systems compositions were designed and processed for enhanced multifunctional performance. Selected and optimized compositions of Gd-B-W system were densified by shock wave consolidation technology. The technological parameters for the explosive consolidation processes and the structure-properties relationships are presented and discussed. The radiation-absorbing properties of the bulk samples were investigated and measured under neutron and gamma irradiation. The theoretical design and the optimization of these composite systems were carried out by the Monte Carlo method with a GEANT 3 program, which contained a special GCALOR package for the simulation of the interaction of thermal and fast neutrons with the composite material systems. During the neutron passage through the samples, the main processes of the interaction of neutrons with matter were considered including elastic and inelastic scattering, neutron fission of nuclei, and radiation capture. The attenuation factor of the irradiation flux is determined as a criterion of efficiency of radiation absorption. For the energy of 0.025 eV (thermal neutrons), gadolinium-containing composites have the maximum absorption capability. In the range of energy spectrum from 1 eV to 10 eV, the boron-containing composites have better absorption performance. For the capture of neutrons in wide energy spectrum, the (n, gamma) reaction takes place and tungsten provides enhanced absorption of radiation. In the presence of mixed radiation sources (neutron and gamma quanta), the boron- and gadolinium-containing composite materials prepared on the tungsten basis have the best performance. In addition to enhanced radiation absorption properties, these composite systems show also enhancement on other properties such as corrosion resistance in aggressive media.
C1 [Chikhradze, N. M.] Georgian Tech Univ, GE-0175 Tbilisi, Rep of Georgia.
[Chikhradze, N. M.; Abashidze, G. S.; Kurdadze, L.] G Tsulukidze Min Inst Georgia, GE-0186 Tbilisi, Rep of Georgia.
[Marquis, F. D. S.] USN, Dept Syst Engn, Postgrad Sch, Wayne Meyer Inst Syst Engn, Monterey, CA USA.
RP Chikhradze, NM (reprint author), Georgian Tech Univ, 75 Kostava St, GE-0175 Tbilisi, Rep of Georgia.
EM chikhradze@mining.org.ge; fdmarquis@nps.edu; im_mod@mining.org.ge
FU Shota Rustaveli National Science Foundation [N 1-7/57]
FX This research and development work was supported in part by a research
grant of the Shota Rustaveli National Science Foundation (N 1-7/57).
NR 16
TC 2
Z9 2
U1 1
U2 7
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1047-4838
J9 JOM-US
JI JOM
PD JUN
PY 2013
VL 65
IS 6
BP 728
EP 738
DI 10.1007/s11837-013-0604-5
PG 11
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering; Mineralogy; Mining & Mineral Processing
SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy;
Mining & Mineral Processing
GA 146CY
UT WOS:000319067900010
ER
PT J
AU Rahman, AS
AF Rahman, Ahmed S.
TI THE ROAD NOT TAKEN: WHAT IS THE "APPROPRIATE" PATH TO DEVELOPMENT WHEN
GROWTH IS UNBALANCED?
SO MACROECONOMIC DYNAMICS
LA English
DT Article
DE Directed Technical Change; Demography; Human Capital; Fertility
ID DIRECTED TECHNICAL CHANGE; TOTAL FACTOR PRODUCTIVITY; ECONOMIC-GROWTH;
TECHNOLOGICAL-CHANGE; ENDOGENOUS GROWTH; WAGE INEQUALITY; POPULATION;
LABOR; SKILL; TRANSITION
AB This paper develops a model that endogenizes both directed technologies and demography. Potential innovators decide which technologies to develop after considering available factors of production, and individuals decide the quality and quantity of their children after considering available technologies. This interaction allows us to evaluate potentially divergent development paths. We find that unskilled labor-biased technological growth can induce higher fertility and lower education, exerting downward pressure on growth in per-person income. Despite this, for most plausible developing-country scenarios, unskilled intensive growth produces more per-person income than skill-intensive growth. This result is robust to a variety of growth modeling assumptions.
C1 [Rahman, Ahmed S.] USN Acad, Annapolis, MD 21402 USA.
RP Rahman, AS (reprint author), USN Acad, Dept Econ, Annapolis, MD 21402 USA.
EM rahman@usna.edu
NR 58
TC 3
Z9 3
U1 0
U2 7
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 1365-1005
J9 MACROECON DYN
JI Macroecon. Dyn.
PD JUN
PY 2013
VL 17
IS 4
BP 747
EP 778
DI 10.1017/S1365100511000654
PG 32
WC Economics
SC Business & Economics
GA 148BL
UT WOS:000319217200003
ER
PT J
AU Jaffe, P
McSpadden, J
AF Jaffe, Paul
McSpadden, James
TI Energy Conversion and Transmission Modules for Space Solar Power
SO PROCEEDINGS OF THE IEEE
LA English
DT Article
DE Energy conversion; microwave power transmission; solar power generation;
solar power satellites (SPSs)
AB This paper begins with an introduction to the concept of space solar power (SSP) and summarizes selected prior studies of proposed solar power satellite (SPS) systems. The functional components of a generic SPS are delineated, and various approaches and promising concepts from prior and current development efforts are elucidated. The fundamentals of wireless power transfer for the SPS application are reviewed, including a discussion of retrodirective beam control approaches. A survey of related technology research and development campaigns for energy conversion and transmission modules for recently proposed modular architectures is outlined. Advances in solid state amplifier technology with relevance to SSP are reviewed, with areas of particular criticality highlighted. Performance metrics for proposed SPS systems and their components are enumerated, and efforts to design, fabricate, and test a prototype conversion module operating at 2.45 GHz in a space-like environment are described.
C1 [Jaffe, Paul] USN, Res Lab, Washington, DC 20375 USA.
[Jaffe, Paul] Univ Maryland, College Pk, MD 20742 USA.
[McSpadden, James] Raytheon Co, Space & Airborne Syst, Dallas, TX 75243 USA.
RP Jaffe, P (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM paul.jaffe@nrl.navy.mil; James_Mcspadden@raytheon.com
NR 48
TC 9
Z9 10
U1 2
U2 33
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9219
J9 P IEEE
JI Proc. IEEE
PD JUN
PY 2013
VL 101
IS 6
SI SI
BP 1424
EP 1437
DI 10.1109/JPROC.2013.2252591
PG 14
WC Engineering, Electrical & Electronic
SC Engineering
GA 147DY
UT WOS:000319147000015
ER
PT J
AU Royset, JO
AF Royset, Johannes O.
TI On sample size control in sample average approximations for solving
smooth stochastic programs
SO COMPUTATIONAL OPTIMIZATION AND APPLICATIONS
LA English
DT Article
DE Stochastic programming; Sample average approximations; Sample size
selection; Algorithm control
ID FINITE MINIMAX PROBLEMS; CONSISTENT APPROXIMATIONS; GLOBAL OPTIMIZATION;
ALGORITHMS; PARAMETERS
AB We consider smooth stochastic programs and develop a discrete-time optimal-control problem for adaptively selecting sample sizes in a class of algorithms based on variable sample average approximations (VSAA). The control problem aims to minimize the expected computational cost to obtain a near-optimal solution of a stochastic program and is solved approximately using dynamic programming. The optimal-control problem depends on unknown parameters such as rate of convergence, computational cost per iteration, and sampling error. Hence, we implement the approach within a receding-horizon framework where parameters are estimated and the optimal-control problem is solved repeatedly during the calculations of a VSAA algorithm. The resulting sample-size selection policy consistently produces near-optimal solutions in short computing times as compared to other plausible policies in several numerical examples.
C1 USN, Postgrad Sch, Dept Operat Res, Monterey, CA USA.
RP Royset, JO (reprint author), USN, Postgrad Sch, Dept Operat Res, Monterey, CA USA.
EM joroyset@nps.edu
FU AFOSR [F1ATA08337G003]
FX This study is supported by AFOSR Young Investigator grant
F1ATA08337G003. The author is grateful for valuable discussions with
Roberto Szechtman, Naval Postgraduate School. The author also thanks
Alexander Shapiro, Georgia Institute of Technology, for assistance with
two technical results.
NR 53
TC 5
Z9 5
U1 0
U2 7
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0926-6003
J9 COMPUT OPTIM APPL
JI Comput. Optim. Appl.
PD JUN
PY 2013
VL 55
IS 2
BP 265
EP 309
DI 10.1007/s10589-012-9528-1
PG 45
WC Operations Research & Management Science; Mathematics, Applied
SC Operations Research & Management Science; Mathematics
GA 143BK
UT WOS:000318841100001
ER
PT J
AU Lu, C
Schwier, JM
Craven, RM
Yu, L
Brooks, RR
Griffin, C
AF Lu, Chen
Schwier, Jason M.
Craven, Ryan M.
Yu, Lu
Brooks, Richard R.
Griffin, Christopher
TI A Normalized Statistical Metric Space for Hidden Markov Models
SO IEEE TRANSACTIONS ON CYBERNETICS
LA English
DT Article
DE HiddenMarkov models (HMMs); model comparison; model similarity
ID SPEECH RECOGNITION
AB In this paper, we present a normalized statistical metric space for hidden Markov models (HMMs). HMMs are widely used to model real-world systems. Like graph matching, some previous approaches compare HMMs by evaluating the correspondence, or goodness of match, between every pair of states, concentrating on the structure of the models instead of the statistics of the process being observed. To remedy this, we present a new metric space that compares the statistics of HMMs within a given level of statistical significance. Compared with the Kullback-Leibler divergence, which is another widely used approach for measuring model similarity, our approach is a true metric, can always return an appropriate distance value, and provides a confidence measure on the metric value. Experimental results are given for a sample application, which quantify the similarity of HMMs of network traffic in the Tor anonymization system. This application is interesting since it considers models extracted from a system that is intentionally trying to obfuscate its internal workings. In the conclusion, we discuss applications in less-challenging domains, such as data mining.
C1 [Lu, Chen; Schwier, Jason M.; Yu, Lu; Brooks, Richard R.] Clemson Univ, Holcombe Dept Elect & Comp Engn, Clemson, SC 29634 USA.
[Craven, Ryan M.] USN, Postgrad Sch, Monterey, CA 93943 USA.
[Griffin, Christopher] Penn State Univ, Appl Res Lab, Commun Informat & Nav Div, State Coll, PA 16804 USA.
RP Lu, C (reprint author), Clemson Univ, Holcombe Dept Elect & Comp Engn, Clemson, SC 29634 USA.
EM lu4@clemson.edu; rrb@acm.org; griffinch@ieee.org
FU Office of Naval Research [N00014-06-C-0022]; Air Force Office of
Scientific Research [FA9550-09-1-0173]
FX This work was supported in part by the Office of Naval Research Code 311
under Contract/Grant N00014-06-C-0022 and in part by the Air Force
Office of Scientific Research under Contract/Grant FA9550-09-1-0173.
This paper was recommended by Associate Editor Q. Ji.
NR 37
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PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2168-2267
J9 IEEE T CYBERNETICS
JI IEEE T. Cybern.
PD JUN
PY 2013
VL 43
IS 3
BP 806
EP 819
DI 10.1109/TSMCB.2012.2216872
PG 14
WC Computer Science, Artificial Intelligence; Computer Science, Cybernetics
SC Computer Science
GA 145IY
UT WOS:000319010000001
PM 23047878
ER
PT J
AU Martinson, E
Brock, D
AF Martinson, Eric
Brock, Derek
TI Auditory Perspective Taking
SO IEEE TRANSACTIONS ON CYBERNETICS
LA English
DT Article
DE Acoustic propagation; auditory displays; human-robot interaction; robot
sensing systems
ID SPEECH
AB Effective communication with a mobile robot using speech is a difficult problem even when you can control the auditory scene. Robot self-noise or ego noise, echoes and reverberation, and human interference are all common sources of decreased intelligibility. Moreover, in real-world settings, these problems are routinely aggravated by a variety of sources of background noise. Military scenarios can be punctuated by high decibel noise from materiel and weaponry that would easily overwhelm a robot's normal speaking volume. Moreover, in nonmilitary settings, fans, computers, alarms, and transportation noise can cause enough interference to make a traditional speech interface unusable. This work presents and evaluates a prototype robotic interface that uses perspective taking to estimate the effectiveness of its own speech presentation and takes steps to improve intelligibility for human listeners.
C1 [Martinson, Eric; Brock, Derek] USN, Res Lab, Washington, DC 20375 USA.
RP Martinson, E (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM eric.martinson.ctr@nrl.navy.mil; brock@itd.nrl.navy.mil
FU Office of Naval Research [N0001409WX30013, N0001411WX30017]
FX This work was supported in part by the Office of Naval Research under
Contracts N0001409WX30013 and N0001411WX30017. This paper was
recommended by Associate Editor V. Murino.
NR 21
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U1 0
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2168-2267
J9 IEEE T CYBERNETICS
JI IEEE T. Cybern.
PD JUN
PY 2013
VL 43
IS 3
BP 957
EP 969
DI 10.1109/TSMCB.2012.2219524
PG 13
WC Computer Science, Artificial Intelligence; Computer Science, Cybernetics
SC Computer Science
GA 145IY
UT WOS:000319010000013
PM 23096077
ER
PT J
AU Zervaki, AD
Haidemenopoulos, GN
Lambrakos, SG
AF Zervaki, A. D.
Haidemenopoulos, G. N.
Lambrakos, S. G.
TI Inverse Thermal Analysis of Heat-Affected Zone in Al2129 and Al2198
Laser Welds
SO JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
LA English
DT Article
DE joining; modeling processes; welding
AB Case study analyses of A12139 and Al2198 laser welds are presented. These analyses demonstrate the concept of constructing parameter spaces for prediction of properties within the heat-affected zone (HAZ) of welds using inverse modeling, which are in turn for process control. The construction of these parameter spaces consists of two procedures. One procedure entails calculation of a parameterized set of temperature histories by inverse analysis of the heat deposition occurring during welding. The other procedure entails correlating these temperature histories with a specific physical property of the weld that is measurable. The analyses presented here examines some characteristics of inverse modeling with respect to the prediction of hardness within the HAZ for deep penetration laser welding of the Aluminum alloys A12139 and Al2198. This study further demonstrates the feasibility of constructing a parameter space for the prediction of weld properties using weld cross section measurements that are independent of weld process conditions.
C1 [Zervaki, A. D.; Haidemenopoulos, G. N.] Univ Thessaly, Dept Mech Engn, Volos 38334, Greece.
[Haidemenopoulos, G. N.] USN, Mat Sci & Technol Div, Res Lab, Washington, DC 20375 USA.
RP Zervaki, AD (reprint author), Univ Thessaly, Dept Mech Engn, Volos 38334, Greece.
EM samuel.lambrakos@nrl.navy.mil
RI Haidemenopoulos, Gregory/C-6496-2014
OI Haidemenopoulos, Gregory/0000-0001-9071-0118
FU Naval Research Laboratory 6.1 Core program in inverse methods of
analysis
FX The calculations presented here (thermal histories) are based on work
supported by a Naval Research Laboratory 6.1 Core program in inverse
methods of analysis. In particular, S. G. L would like to thank the
Department of Mechanical Engineering at the University of Thessaly for
its continued collaboration concerning welding and materials processing.
NR 10
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U1 2
U2 18
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1059-9495
J9 J MATER ENG PERFORM
JI J. Mater. Eng. Perform.
PD JUN
PY 2013
VL 22
IS 6
BP 1582
EP 1592
DI 10.1007/s11665-012-0455-1
PG 11
WC Materials Science, Multidisciplinary
SC Materials Science
GA 143XR
UT WOS:000318903000007
ER
PT J
AU Horton, JL
Jacobson, IG
Wong, CA
Wells, TS
Boyko, EJ
Smith, B
Ryan, MAK
Smith, TC
AF Horton, Jaime L.
Jacobson, Isabel G.
Wong, Charlene A.
Wells, Timothy S.
Boyko, Edward J.
Smith, Besa
Ryan, Margaret A. K.
Smith, Tyler C.
CA Millennium Cohort Study Team
TI The impact of prior deployment experience on civilian employment after
military service
SO OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
LA English
DT Article
ID MENTAL-HEALTH PROBLEMS; POSTTRAUMATIC-STRESS-DISORDER; MILLENNIUM
COHORT; US MILITARY; PRIMARY-CARE; IRAQ; AFGHANISTAN; VETERANS;
DEPRESSION; WORK
AB Objective To determine if deployment to recent military operations or other health, demographic, or military-related characteristics were associated with employment after military service.
Methods Former US active duty military service members participating in the Millennium Cohort Study, a population-based sample of US military personnel that began in July of 2001, were prospectively followed from the time of baseline health reporting to self-reported employment status after military separation.
Results Of the 9099 separated personnel meeting inclusion criteria, 17% reported unemployment after military service. In multivariable modelling, prior deployment experiences, with or without reported combat, and post-traumatic stress disorder (PTSD) were not significantly associated with employment status postservice. Among those who routinely retired from service with a pension, positive screens for depression (OR, 1.67; 95% CI, 1.05 to 2.63) and panic/anxiety (OR, 1.63; 95% CI, 1.10 to 2.43) were significantly associated with subsequent unemployment. Poor physical health, female sex, black race, lower education and disabling illnesses/injuries were also predictive of postservice unemployment.
Conclusions After stratifying for reason for military separation, mental disorders like depression or panic/anxiety and poor physical health may have greater impact than prior deployment experiences or PTSD on the ability to find or maintain employment postservice. These findings may guide support for veterans most in need of job placement services after military service.
C1 [Horton, Jaime L.; Jacobson, Isabel G.; Wong, Charlene A.; Wells, Timothy S.; Smith, Besa; Smith, Tyler C.] USN, Deployment Hlth Res Dept, Hlth Res Ctr, San Diego, CA 92106 USA.
[Boyko, Edward J.] Seattle Epidemiol Res & Informat Ctr, Dept Vet Affairs Puget Sound Hlth Care Syst, Seattle, WA USA.
[Ryan, Margaret A. K.] USN, Hosp Camp Pendleton, Clin Invest Program, Camp Pendleton, CA USA.
RP Horton, JL (reprint author), USN, Deployment Hlth Res Dept, Hlth Res Ctr, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM Jaime.Horton@med.navy.mil
FU Military Operational Medicine Research Program, USA Army Medical
Research and Materiel Command (Fort Detrick, MD, USA); Management
Information Division, US Defense Manpower Data Center (Seaside, CA,
USA); Military Operational Medicine Research Program; US Army Medical
Research and Materiel Command (Fort Detrick, MD, USA)
FX In addition to the authors, the Millennium Cohort Study Team includes
Melissa Bagnell, Gina Creaven, Nancy Crum-Cianflone, James Davies,
Nisara Granado, Gia Gumbs, Lesley Henry, Dennis Hernando, Andrea
Ippolito, Kelly Jones, Lauren Kipp, Cynthia LeardMann, William Lee,
Michelle Linfesty, Gordon Lynch, Hope McMaster, Sheila Medina-Torne,
Amanda Pietrucha, Teresa Powell, Kari Sausedo, Amber Seelig, Beverly
Sheppard, Katherine Snell, Steven Speigle, Jennifer Walstrom, John
Wesner, Martin White and James Whitmer. We are indebted to the
Millennium Cohort Study participants, without whom these analyses would
not be possible. We appreciate the support from the Management
Information Division, US Defense Manpower Data Center (Seaside, CA,
USA); Military Operational Medicine Research Program and US Army Medical
Research and Materiel Command (Fort Detrick, MD, USA). In addition, we
thank Michelle LeWark from the Naval Health Research Center (San Diego,
CA, USA).; The Millennium Cohort Study is funded through the Military
Operational Medicine Research Program, USA Army Medical Research and
Materiel Command (Fort Detrick, MD, USA). Resources from the VA Puget
Sound Health Care System supported Dr Boyko's involvement in this
research. The funding organisation had no role in the design and conduct
of the study; collection, analysis, or preparation of data; or
preparation, review or approval of the manuscript.
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U1 0
U2 38
PU BMJ PUBLISHING GROUP
PI LONDON
PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON WC1H 9JR, ENGLAND
SN 1351-0711
J9 OCCUP ENVIRON MED
JI Occup. Environ. Med.
PD JUN
PY 2013
VL 70
IS 6
BP 408
EP 417
DI 10.1136/oemed-2012-101073
PG 10
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA 143BO
UT WOS:000318841500007
PM 23519864
ER
PT J
AU Jaskoski, M
AF Jaskoski, Maiah
TI Private Financing of the Military: A Local Political Economy Approach
SO STUDIES IN COMPARATIVE INTERNATIONAL DEVELOPMENT
LA English
DT Article
DE Civil-military relations; Resource conflict; Security privatization;
State capture; Subnational politics
ID LATIN-AMERICA; NIGER-DELTA; STATE; OIL; NEOLIBERALISM; CORPORATIONS;
COLOMBIA; INDUSTRY; VIOLENCE; POLICY
AB In developing countries that are democratizing after military rule, and undergoing liberalizing economic reforms that encourage a shrinking of the state, what missions are the armed forces performing, who funds those missions, who benefits from military services, and why? This article analyzes security provision by the armed forces for paying clients-especially private companies in extractive industries-in accordance with negotiations between clients and commanders of the local military units that directly provide the security. The analysis identifies two paths toward local military-client relations. First, weak state capacity may mean that government control of military finances brought by democratization and economic reform remains limited to the national level, promoting local military-client exchanges. Second, amid minimal government control of military finances, even in the capital city, demand from companies in the powerful extractive industries and from recently endowed subnational governments can encourage local military-client contracting.
C1 USN, Postgrad Sch, Dept Natl Secur Affairs, Monterey, CA 93943 USA.
RP Jaskoski, M (reprint author), USN, Postgrad Sch, Dept Natl Secur Affairs, Glasgow Room 396,1411 Cunningham Rd, Monterey, CA 93943 USA.
EM majaskos@nps.edu
NR 76
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U1 3
U2 25
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0039-3606
J9 STUD COMP INT DEV
JI Stud. Comp. Int. Dev.
PD JUN
PY 2013
VL 48
IS 2
BP 172
EP 195
DI 10.1007/s12116-012-9119-2
PG 24
WC International Relations; Planning & Development; Political Science
SC International Relations; Public Administration; Government & Law
GA 143OU
UT WOS:000318877800003
ER
PT J
AU Cunningham, D
Everton, S
Wilson, G
Padilla, C
Zimmerman, D
AF Cunningham, Dan
Everton, Sean
Wilson, Greg
Padilla, Carlos
Zimmerman, Doug
TI Brokers and Key Players in the Internationalization of the FARC
SO STUDIES IN CONFLICT & TERRORISM
LA English
DT Article
ID COMMUNITY STRUCTURE; NETWORKS; CENTRALITY
AB The Fuerzas Armadas Revolucionarias de Colombia (Revolutionary Armed Forces of ColombiaFARC) was originally founded to protect Colombian peasants from harsh landowner policies in exchange for food and supplies. Over time, it has evolved into an internationally connected, narco-trafficking organization that displays little concern for the peasants it once vowed to protect. In recent years, Colombian authorities have become more adept at countering the FARC, forcing it to operate increasingly outside of Colombia. The FARC's transformation from a local insurgency into an internationally connected one is the focus of this article. Using social network analysis it identifies key leaders who are tied to this transformation and discusses implications concerning the FARC's future.
C1 [Cunningham, Dan; Everton, Sean; Wilson, Greg] USN, Postgrad Sch, Def Anal Dept, Monterey, CA 93943 USA.
[Zimmerman, Doug] USA, Washington, DC USA.
RP Everton, S (reprint author), USN, Postgrad Sch, Codirector Core Lab, Def Anal Dept, 589 Dyer Rd,Root Hall 203, Monterey, CA 93943 USA.
EM sfeverto@nps.edu
NR 60
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U1 1
U2 15
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 1057-610X
EI 1521-0731
J9 STUD CONFL TERROR
JI Stud. Confl. Terror.
PD JUN 1
PY 2013
VL 36
IS 6
BP 477
EP 502
DI 10.1080/1057610X.2013.784603
PG 26
WC International Relations; Political Science
SC International Relations; Government & Law
GA 145TM
UT WOS:000319040700003
ER
PT J
AU Peterson, D
Hyer, E
Wang, J
AF Peterson, David
Hyer, Edward
Wang, Jun
TI A short-term predictor of satellite-observed fire activity in the North
American boreal forest: Toward improving the prediction of smoke
emissions
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE Fire weather; Numerical weather prediction; Satellite; Boreal; Wildfire;
Smoke; Emissions; Statistics
ID PIXEL-BASED CALCULATION; RADIATIVE POWER; WILDLAND FIRE; HAINES INDEX;
MODIS; WEATHER; ALGORITHM; MODEL; TRANSPORT; PATTERNS
AB A statistical model, based on numerical weather prediction (NWP), is developed to predict the subsequent day's satellite observations of fire activity in the North American boreal forest during the fire season (24-h forecast). In conjunction with the six components of the Canadian Forest Fire Danger Rating System and other NWP outputs, fire data from the MODerate Resolution Imaging Spectroradiometer (MODIS) and the Geostationary Operational Environmental Satellites (GOES) are used to examine the meteorological separability between the largest fire growth and decay events, with a focus on central Alaska during the large fire season of 2004. This combined information is analyzed in three steps including a maximum likelihood classification, multiple regression, and empirical correction, from which the meteorological effects on fire growth and decay are statistically established to construct the fire prediction model. Both MODIS and GOES fire observations show that the NWP-based fire prediction model is an improvement over the forecast of persistence commonly used by near-real-time fire emission inventories. Results from an independent test (2005 fire season) show that the root-mean-square error (RMSE) of predicted MODIS fire observations is reduced by 5.2% compared with a persistence forecast Improvements are strongest (RMSE reduction of 11.4%) for cases with observed decay or extinction of fires. Similar results are obtained from additional independent tests using the 2004 and 2005 GOES satellite fire observations. This study uniquely demonstrates the value and importance of combining NWP data and satellite fire observations to predict biomass-burning emissions, which is a critical step toward producing a global short-term fire prediction model and improving operational forecasts of smoke transport at large spatial scales. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Peterson, David; Wang, Jun] Univ Nebraska, Dept Earth & Atmospher Sci, Lincoln, NE 68588 USA.
[Hyer, Edward] USN, Res Lab, Monterey, CA 93940 USA.
RP Peterson, D (reprint author), USN, Res Lab Monterey, Monterey, CA 93940 USA.
EM david.peterson.ctr@nrlmry.navy.mil; edward.hyer@nrlmry.navy.mil;
jwang7@unl.edu
RI Hyer, Edward/E-7734-2011; Wang, Jun/A-2977-2008; peterson,
david/L-2350-2016
OI Hyer, Edward/0000-0001-8636-2026; Wang, Jun/0000-0002-7334-0490;
FU Naval Research Enterprise Intern Program at the Naval Research
Laboratory in Monterey, California; NASA Earth and Space Science
Fellowship; NASA's Suomi-NPP Program; NASA's Applied Science Program;
NASA's Radiation Sciences Program
FX This project was funded by the Naval Research Enterprise Intern Program
(summer 2011) at the Naval Research Laboratory in Monterey, California
and by the NASA Earth and Space Science Fellowship (to D. Peterson). We
are also grateful to the support from NASA's Suomi-NPP Program, Applied
Science Program, and Radiation Sciences Program.
NR 51
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U1 0
U2 36
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1352-2310
J9 ATMOS ENVIRON
JI Atmos. Environ.
PD JUN
PY 2013
VL 71
BP 304
EP 310
DI 10.1016/j.atmosenv.2013.01.052
PG 7
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 136SY
UT WOS:000318384900032
ER
PT J
AU Crouse, DF
AF Crouse, David Frederic
TI Discretizing Space to Make a Dictionary Matrix for Bistatic Compressive
Sensing Detection
SO IEEE SIGNAL PROCESSING LETTERS
LA English
DT Article
DE Beam steering; bistatic radar
AB Recent research has focussed on the use of compressive sensing for detection in both monostatic and bistatic radar systems. However, such work has not considered many of the practical aspects of implementing a detection algorithm. This letter looks at how the geometry of pulse chasing in a bistatic radar system can be used to reduce the dimensionality of the estimation problem for compressive sensing by only considering the region illuminated by the transmitter that is visible to the receiver. Specifically, a method of determining the extent of the transmit beam in the receiver's local u - v coordinate system is presented. Given this extent, the compressive sensing dictionary matrix can be formed over the discretized region.
C1 USN, Res Lab, Washington, DC 20375 USA.
RP Crouse, DF (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM david.crouse@nrl.navy.mil
FU Office of Naval Research through the NRL Base Program (Karle Fellowship)
FX Manuscript received December 28, 2012; revised February 22, 2013;
accepted April 16, 2013. Date of publication April 18, 2013; date of
current version April 29, 2013. This work was supported by the Office of
Naval Research through the NRL Base Program (Karle Fellowship). The
associate editor coordinating the review of this manuscript and
approving it for publication was Prof. Gitta Kutyniok.
NR 10
TC 0
Z9 0
U1 0
U2 9
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1070-9908
J9 IEEE SIGNAL PROC LET
JI IEEE Signal Process. Lett.
PD JUN
PY 2013
VL 20
IS 6
BP 583
EP 586
DI 10.1109/LSP.2013.2258911
PG 4
WC Engineering, Electrical & Electronic
SC Engineering
GA 141BM
UT WOS:000318700400001
ER
PT J
AU Hromadka, TV
Jaye, M
Phillips, M
Hromadka, T
Phillips, D
AF Hromadka, T. V., II
Jaye, M.
Phillips, M.
Hromadka, T., III
Phillips, D.
TI Mathematical Model of Cryospheric Response to Climate Changes
SO JOURNAL OF COLD REGIONS ENGINEERING
LA English
DT Article
DE Global climate change; Cryosphere; Mathematical model; Phase change;
Differential equation model
ID VOSTOK ICE-CORE; FREEZING FRONTS; SOIL; HEAT; SEGREGATION; RECORD
AB This paper focuses on the development of simplified mathematical models of the cryosphere which may be useful in further understanding possible global climate change impacts and in further assessing future impacts captured by global circulation models (GCMs). The mathematical models developed by leveraging the dominating effects of freezing and thawing within the cryosphere to simplify the relevant heat transport equations are tractable to direct solution or numerical modeling. In this paper, the heat forcing function is assumed to be a linear transformation of temperature (assumed to be represented by proxy realizations). The output from the governing mathematical model is total ice volume of the cryosphere. The basic mathematical model provides information as a systems modeling approach that includes sufficient detail to explain ice volume given the estimation of the heat forcing function. A comparison between modeling results in the estimation of ice volume versus ice volume estimates developed from use of proxy data are shown in the demonstration problems presented.
C1 [Hromadka, T. V., II; Phillips, M.; Phillips, D.] US Mil Acad, Dept Math Sci, West Point, NY 10996 USA.
[Jaye, M.] USN, Dept Def Anal, Postgrad Sch, Monterey, CA 93943 USA.
[Hromadka, T., III] Univ Calif San Diego, Dept Comp Sci, La Jolla, CA 92093 USA.
RP Hromadka, TV (reprint author), US Mil Acad, Dept Math Sci, West Point, NY 10996 USA.
EM ted@phdphdphd.com
FU United States Military Academy, West Point, New York, Department of
Mathematical Sciences; Naval Post Graduate School, Monterey, California,
Department of Defense Analysis
FX Acknowledgements are paid to the United States Military Academy, West
Point, New York, Department of Mathematical Sciences and the Naval Post
Graduate School, Monterey, California, Department of Defense Analysis
for their support to the authors during this research. Also acknowledged
are the several individuals who have participated in particular tasks in
developing this paper including, but by no means limited to, Rene Perez,
Laura Hromadka, Bethany Espinosa, and Michael Barton.
NR 44
TC 1
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U1 2
U2 11
PU ASCE-AMER SOC CIVIL ENGINEERS
PI RESTON
PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA
SN 0887-381X
J9 J COLD REG ENG
JI J. Cold Reg. Eng.
PD JUN
PY 2013
VL 27
IS 2
BP 67
EP 93
DI 10.1061/(ASCE)CR.1943-5495.0000053
PG 27
WC Engineering, Environmental; Engineering, Civil; Geosciences,
Multidisciplinary
SC Engineering; Geology
GA 139GE
UT WOS:000318569200002
ER
PT J
AU Shulman, I
Ramp, SR
Anderson, S
Metzger, EJ
Sakalaukus, P
AF Shulman, Igor
Ramp, Steven R.
Anderson, Stephanie
Metzger, E. Joseph
Sakalaukus, Peter
TI Impact of remote forcing, model resolution and bathymetry on predictions
of currents on the shelf
SO DYNAMICS OF ATMOSPHERES AND OCEANS
LA English
DT Article
DE Coastal circulation; Ocean modeling and prediction; Coastally-trapped
waves; USA/California/Monterey Bay
ID OCEAN DATA ASSIMILATION; WEST-COAST; SEA-LEVEL; NORTH-AMERICA; GODAE
AB Impacts of remote forcing, model resolution and bathymetry on current predictions at two moorings located on the shelf of the Monterey Bay area are investigated. We consider three Monterey Bay model configurations which differ in resolution and bathymetry representation, and we specify open boundary conditions for these three configurations from two larger scale models, which have different accuracy in the representation of the remote forcing (in the form of poleward propagating along the coast coastally-trapped Kelvin type waves).
Comparisons of correlations between observed and model currents as well as visual comparisons show that the most critical element in reproducing currents on the shelf is accurate representation of the remote forcing. Our results also show that accurate representation of bathymetry is the second most critical factor in reproducing observed currents. Published by Elsevier B.V.
C1 [Shulman, Igor; Anderson, Stephanie; Metzger, E. Joseph; Sakalaukus, Peter] USN, Res Lab, Div Oceanog, Stennis Space Ctr, MS 39529 USA.
[Ramp, Steven R.] Soliton Ocean Serv Inc, Carmel Valley, CA 93924 USA.
RP Shulman, I (reprint author), USN, Res Lab, Bldg 1009, Stennis Space Ctr, MS 39529 USA.
EM igor.shulman@nrlssc.navy.mil
FU Naval Research Laboratory (NRL); Department of Defense High Performance
Computing Initiative
FX This research was funded through the Naval Research Laboratory (NRL).
Computer time for the numerical simulations was provided through a grant
from the Department of Defense High Performance Computing Initiative.
This manuscript is NRL contribution: 7330-12-1514.
NR 24
TC 0
Z9 0
U1 0
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0377-0265
J9 DYNAM ATMOS OCEANS
JI Dyn. Atmos. Oceans
PD JUN
PY 2013
VL 61-62
BP 35
EP 45
DI 10.1016/j.dynatmoce.2013.03.001
PG 11
WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences;
Oceanography
SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences;
Oceanography
GA 137RG
UT WOS:000318454500003
ER
PT J
AU Harris, E
McNamara, P
Durso, R
AF Harris, Erica
McNamara, Patrick
Durso, Raymon
TI Apathy in Patients With Parkinson Disease as a Function of Side of Onset
SO JOURNAL OF GERIATRIC PSYCHIATRY AND NEUROLOGY
LA English
DT Article
DE apathy; Parkinson's disease; dopamine; side of onset; dementia
ID ANXIETY STRESS SCALES; BASAL GANGLIA; RATING-SCALE; COGNITIVE
IMPAIRMENT; SYMPTOM ONSET; DEPRESSION; AWARENESS; ASYMMETRY; PREDICTION;
INVENTORY
AB Background: In previous studies among patients with Parkinson disease (PD) who were administered the Apathy Evaluation Scale (AES), between 12% and 51% evidenced clinically significant apathy. Although apathy is a risk factor for dementia, its causes and clinical correlates have not been adequately studied. In particular, side of onset of disease, though a likely predictor of apathy and dementia, has not been thoroughly investigated. Methods: A total of 30 mid-stage patients with PD and 35 community-dwelling elderly control patients (CPs) were administered the AES (self version) along with a battery of cognitive and neuropsychiatric assessments. Persons close to patients with PD and CPs completed the AES-other (informant) version about the patient or CP. Multiple linear regression analysis examined predictors of apathy severity after controlling for mood, levodopa dosage equivalents (LDEs), gender, age, and disease severity (Hoehn-Yahr [H-Y] stage). Results: Patients with right-onset disease more frequently exhibited apathy and evidenced significantly higher total AES scores than left-onset patients with PD or CPs (P < .03). Of all the patients, 42% with right-onset PD versus 11.1% of the patients with left-onset PD exhibited clinically significant levels of apathy. There were no differences for self versus informant scores for right-onset patients with PD. The AES scores were not correlated with depression, stress, anxiety, LDEs, gender, age, and H-Y stage. There were no gender differences for any AES variables. Conclusion: Clinically significant levels of apathy are much more likely to occur in patients with right-onset disease. These patients may be at greater risk of PD-related dementia.
C1 [Harris, Erica] USN, Dept Behav Sci & Epidemiol, Hlth Res Ctr, San Diego, CA 92106 USA.
[McNamara, Patrick; Durso, Raymon] Boston Univ, Sch Med, Dept Neurol, Boston, MA 02118 USA.
[McNamara, Patrick; Durso, Raymon] VA Boston Healthcare Syst, Dept Neurol, Boston, MA USA.
[McNamara, Patrick] Northcent Univ, Prescott Valley, AZ USA.
RP Harris, E (reprint author), USN, Hlth Res Ctr, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM Erica.Harris@med.navy.mil
FU National Institute on Deafness and Other Communication Disorders; Office
of Research and Development, Medical Research Service, Department of
Veterans Affairs
FX Both the Boston University Medical Center (BUMC) and Boston Veterans
Affairs Medical Center (VAMC) institutional review boards approved this
study. Some material contained within this manuscript was previously
published in Harris, E. Neurocognition and self-regulation of the
agentic self in patients with Parkinson's disease (Doctoral
dissertation). Boston University, Boston, MA; 2011. Dr Harris owns the
copyright to this material. This study is based upon work supported, in
part, by the Office of Research and Development, Medical Research
Service, Department of Veterans Affairs.; The author(s) disclosed
receipt of the following financial support for the research, authorship,
and/or publication of this article: This work was supported by the
National Institute on Deafness and Other Communication Disorders.
Competing Interests. There are no competing interests among any of the
authors, financial or otherwise.
NR 68
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U2 14
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0891-9887
J9 J GERIATR PSYCH NEUR
JI J. Geriatr. Psychiatry Neurol.
PD JUN
PY 2013
VL 26
IS 2
BP 95
EP 104
DI 10.1177/0891988713481267
PG 10
WC Geriatrics & Gerontology; Clinical Neurology; Psychiatry
SC Geriatrics & Gerontology; Neurosciences & Neurology; Psychiatry
GA 135LN
UT WOS:000318289700005
PM 23584852
ER
PT J
AU Pietz, J
Royset, JO
AF Pietz, Jesse
Royset, Johannes O.
TI Generalized orienteering problem with resource dependent rewards
SO NAVAL RESEARCH LOGISTICS
LA English
DT Article
DE orienteering problem; military operations research; search and
surveillance; route planning; mixed-integer nonlinear programming
ID MAXIMUM COLLECTION PROBLEM; MULTIPLE SEARCHERS; CONSTRAINED-PATH;
OPTIMIZATION; ALGORITHM
AB We introduce a generalized orienteering problem (OP) where, as usual, a vehicle is routed from a prescribed start node, through a directed network, to a prescribed destination node, collecting rewards at each node visited, to maximize the total reward along the path. In our generalization, transit on arcs in the network and reward collection at nodes both consume a variable amount of the same limited resource. We exploit this resource trade-off through a specialized branch-and-bound algorithm that relies on partial path relaxation problems that often yield tight bounds and lead to substantial pruning in the enumeration tree. We present the smuggler search problem (SSP) as an important real-world application of our generalized OP. Numerical results show that our algorithm applied to the SSP outperforms standard mixed-integer nonlinear programming solvers for moderate to large problem instances. We demonstrate model enhancements that allow practitioners to represent realistic search planning scenarios by accounting for multiple heterogeneous searchers and complex smuggler motion. (c) 2013 Wiley Periodicals, Inc. Naval Research Logistics, 2013
C1 [Pietz, Jesse; Royset, Johannes O.] USN, Dept Operat Res, Postgrad Sch, Monterey, CA USA.
RP Pietz, J (reprint author), USN, Dept Operat Res, Postgrad Sch, Monterey, CA USA.
EM japietz@nps.edu
FU Office of Naval Research, Mathematical Optimization, and Operations
Research Program
FX The second author acknowledges financial support from the Office of
Naval Research, Mathematical Optimization, and Operations Research
Program.
NR 38
TC 5
Z9 5
U1 1
U2 13
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0894-069X
J9 NAV RES LOG
JI Nav. Res. Logist.
PD JUN
PY 2013
VL 60
IS 4
BP 294
EP 312
DI 10.1002/nav.21534
PG 19
WC Operations Research & Management Science
SC Operations Research & Management Science
GA 133UL
UT WOS:000318166000002
ER
PT J
AU Moschou, SP
Tsinganos, K
Vourlidas, A
Archontis, V
AF Moschou, S. P.
Tsinganos, K.
Vourlidas, A.
Archontis, V.
TI SDO Observations of Solar Jets
SO SOLAR PHYSICS
LA English
DT Article
DE Solar jets; Magnetohydrodynamics; Magnetic field; Active regions
ID X-RAY JETS; MAGNETIC RECONNECTION; FLUX EMERGENCE; CHROMOSPHERIC JET;
FINE-STRUCTURE; CORONAL HOLE; ALFVEN WAVES; POLAR JETS; HINODE;
KINEMATICS
AB We present an analysis of high cadence observations of solar jets observed in the Extreme Ultraviolet (EUV), at 304 , with the Atmospheric Imaging Assembly instrument aboard the Solar Dynamics Observatory (SDO). The jets in our sample lie very close to the solar limb to minimize projection effects. Two of the events show clear helical patterns during ejection. We also find that some of the jets are recurrent and that most of them cannot overcome solar gravity.
We investigate the temporal evolution of the jets by measuring the height of their leading edge as a function of time. By fitting the resulting height-time diagrams, we derive the magnitude of their initial ejection speed and plasma acceleration by assuming ballistic motion. Moreover, we calculate the upward acceleration of the jets based on the dynamical velocity of the plasma, without assuming a ballistic motion. In both models, the acceleration profiles suggest the influence of forces other than gravity. In particular, we find indications of an upwards driving force which weakens the decelerating effect of the solar gravitational field along the motion of the jet. This force is larger in the dynamical model, which indicates that the ballistic approximation does not properly determine the rising motion of the plasma jets.
C1 [Moschou, S. P.; Tsinganos, K.; Archontis, V.] Univ Athens, Dept Phys, Sect Astrophys Astron & Mech, Zografos 15784, Greece.
[Tsinganos, K.] Natl Observ Athens, Athens, Greece.
[Vourlidas, A.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Archontis, V.] Univ St Andrews, Sch Math & Stat, St Andrews KY16 9SS, Fife, Scotland.
RP Tsinganos, K (reprint author), Univ Athens, Dept Phys, Sect Astrophys Astron & Mech, Zografos 15784, Greece.
EM sofia_paraskevi@hotmail.com; tsingan@phys.uoa.gr;
angelos.vourlidas@nrl.navy.mil; vasilis@mcs.st-and.ac.uk
RI Vourlidas, Angelos/C-8231-2009
OI Vourlidas, Angelos/0000-0002-8164-5948
FU NASA [S-136361-Y]; Alexander Onassis Public Benefit Foundation;
Foundation for Education and European Culture (IPEP) in Greece; Hellenic
National Network for Space Research (HNSR) [MIS 377274]
FX We thank the referee for the useful comments, which have improved the
manuscript. SDO is a mission of NASA's Living With a Star Program. A. V.
is supported by NASA contract S-136361-Y. S. P. M. acknowledges
financial support by the Alexander Onassis Public Benefit Foundation and
also the Foundation for Education and European Culture (IPEP) in Greece.
The work presented here is supported by the Hellenic National Network
for Space Research (HNSR), MIS 377274 (Thalis).
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PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0038-0938
EI 1573-093X
J9 SOL PHYS
JI Sol. Phys.
PD JUN
PY 2013
VL 284
IS 2
BP 427
EP 438
DI 10.1007/s11207-012-0190-7
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 138OK
UT WOS:000318517800010
ER
PT J
AU Selwa, M
Poedts, S
DeVore, CR
AF Selwa, M.
Poedts, S.
DeVore, C. R.
TI Numerical Simulations of Dome-Shaped EUV Waves from Different
Active-Region Configurations
SO SOLAR PHYSICS
LA English
DT Article
DE Active regions, models; Corona, structures; Flares, pre-flare phenomena;
Flares, waves; EUV waves, propagation
ID EXTREME-ULTRAVIOLET WAVE; CORONAL MASS EJECTION; EIT WAVES; QUADRATURE
OBSERVATIONS; IMAGING TELESCOPE; ROTATING SUNSPOTS; FLUX TUBES; MHD
WAVES; STEREO; FLARE
AB Recently, 3D STEREO observations explained the 3D structure of EUV waves. Patsourakos and Vourlidas (Astrophys. J. 700, L182, 2009), Veronig et al. (Astrophys. J. 716, L57, 2010) and Selwa, Poedts, and DeVore (Astrophys. J. 747, L21, 2012) reported on the dome-shaped EUV waves resulting from different events. Here, we model, by means of 3D MHD simulations, the formation of dome-shaped EUV waves in rotating active regions (ARs). The numerical simulations are initialized with idealized (multi-)dipolar coronal (low beta) configurations. Next, we apply a sheared rotational motion to the central parts of all the positive and negative flux regions at the photospheric boundary. As a result, the flux tubes connecting the flux sources become twisted. We find that in all the studied configurations of idealized ARs, the rotating motion results in a dome-shaped structure originating from the AR. However, the shape of the dome depends on the initial configuration (topology of the AR). The initial stage of the wave evolution consists of multiple fronts that later merge together forming a single wave. The observed EUV wave propagates nearly isotropically on the disk and also in the upward direction. We remark that the initial stage of the evolution is determined by the driver and not caused by a magnetic reconnection event. At a later stage, however, the wave propagates freely. We study the different wave properties resulting from different driver speeds and find that independent of the initial AR topology the 3D dome-shaped wave is excited in the system. The symmetry of the 3D dome depends on the topology of the AR and on the duration of the driver. The EUV wave triggered is independent of the temporal profile of the driver. However, the properties of the wave (speed, sharpness of the cross-section, etc.) depend on the type of the trigger.
C1 [Selwa, M.; Poedts, S.] Katholieke Univ Leuven, Dept Math, Ctr Math Plasma Astrophys, B-3001 Louvain, Belgium.
[DeVore, C. R.] USN, Res Lab, Washington, DC 20375 USA.
RP Selwa, M (reprint author), Katholieke Univ Leuven, Dept Math, Ctr Math Plasma Astrophys, Celestijnenlaan 200 B, B-3001 Louvain, Belgium.
EM mag.selwa@wis.kuleuven.be; stefaan.poedts@wis.kuleuven.be;
devore@lcp.nrl.navy.mil
RI DeVore, C/A-6067-2015; Poedts, Stefaan/C-9775-2012
OI DeVore, C/0000-0002-4668-591X; Poedts, Stefaan/0000-0002-1743-0651
FU SIDC Data Exploitation project [ESA Prodex 9 C 90347]; European
Commission under the Solaire Marie Curie Training Network; KU Leuven
[GOA/2009-009]; FWO-Vlaanderen [G.0729.11]; ESA Prodex 9 [C 90347];
European Commission [269299, 262468, 263340]; NASA; Hercules Foundation;
Flemish government department EWI
FX MS expresses thanks to Dr. Leon Ofman and the referee for their
comments. MS's work was supported by the SIDC Data Exploitation (ESA
Prodex 9 C 90347) project. Part of her work was supported by the
European Commission under the Solaire Marie Curie Training Network. SP's
work was supported by the projects GOA/2009-009 (KU Leuven), G.0729.11
(FWO-Vlaanderen) and C 90347 (ESA Prodex 9). Financial support also was
provided by the European Commission's Seventh Framework Programme (FP7)
under grant agreements SOLSPANET (project 269299, www.solspanet.eu),
SPACECAST (project 262468, fp7-spacecast.eu), and SWIFF (project 263340,
www.swiff.eu). CRD's work was supported by NASA. For the computations we
used the infrastructure of the VSC Flemish Supercomputer Center, funded
by the Hercules Foundation and the Flemish government department EWI.
NR 57
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U2 4
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0038-0938
EI 1573-093X
J9 SOL PHYS
JI Sol. Phys.
PD JUN
PY 2013
VL 284
IS 2
BP 515
EP 539
DI 10.1007/s11207-013-0302-z
PG 25
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 138OK
UT WOS:000318517800016
ER
PT J
AU Pankavich, S
Radu, P
AF Pankavich, Stephen
Radu, Petronela
TI NONLINEAR INSTABILITY OF SOLUTIONS IN PARABOLIC AND HYPERBOLIC DIFFUSION
SO EVOLUTION EQUATIONS AND CONTROL THEORY
LA English
DT Article
DE Evolution equations; sign-changing damping; instability; variable
coefficients; steady states
ID WAVE-EQUATIONS; CONSERVATION-LAWS; STEADY-STATES; STABILITY;
CONVERGENCE; SYSTEM
AB We consider semilinear evolution equations of the form a(t)partial derivative(tt)u + b(t)partial derivative(t)u + Lu = f (x, u) and b(t)partial derivative(t)u + Lu = f (x, u), with possibly unbounded a(t) and possibly sign-changing damping coefficient b(t), and determine precise conditions for which linear instability of the steady state solutions implies nonlinear instability. More specifically, we prove that linear instability with an eigenfunction of fixed sign gives rise to nonlinear instability by either exponential growth or finite-time blow-up. We then discuss a few examples to which our main theorem is immediately applicable, including evolution equations with supercritical and exponential nonlinearities.
C1 [Pankavich, Stephen] US Naval Acad, Dept Math, Annapolis, MD 21402 USA.
[Pankavich, Stephen] Colorado Sch Mines, Dept Appl Math & Stat, Golden, CO 80002 USA.
[Radu, Petronela] Univ Nebraska, Dept Math, Lincoln, NE 68588 USA.
RP Pankavich, S (reprint author), US Naval Acad, Dept Math, Annapolis, MD 21402 USA.
EM pankavic@mines.edu; pradu@math.unl.edu
FU NSF [DMS-0908413, DMS-1211667, DMS-0908435]
FX The first author was supported in part by NSF grants DMS-0908413 and
DMS-1211667. The second author was supported in part by NSF grant
DMS-0908435.
NR 32
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U1 0
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PU AMER INST MATHEMATICAL SCIENCES
PI SPRINGFIELD
PA PO BOX 2604, SPRINGFIELD, MO 65801-2604 USA
SN 2163-2480
J9 EVOL EQU CONTROL THE
JI Evol. Equ. Control Theory
PD JUN
PY 2013
VL 2
IS 2
SI SI
BP 403
EP 422
DI 10.3934/eect.2013.2.403
PG 20
WC Mathematics, Applied; Mathematics
SC Mathematics
GA AT4ZJ
UT WOS:000344952600012
ER
PT J
AU Hanling, SR
Lesnik, I
Tucker, A
Williams, N
Henry, K
Freilich, D
AF Hanling, Steven R.
Lesnik, Ivan
Tucker, Anthony
Williams, Necia
Henry, Kurt
Freilich, Daniel
TI Navy Medicine's Solution to Chronic Pain
SO MILITARY MEDICINE
LA English
DT Editorial Material
C1 [Hanling, Steven R.; Lesnik, Ivan] Naval Med Ctr San Diego, Dept Anesthesiol, San Diego, CA 92134 USA.
[Tucker, Anthony] Naval Med Ctr Portsmouth, Dept Anesthesiol, Portsmouth, VA 23708 USA.
[Williams, Necia] Naval Hosp Pensacola, Dept Anesthesiol, Pensacola, FL 32512 USA.
[Henry, Kurt; Freilich, Daniel] Navy Bur Med & Surg, Clin Operat M32, Falls Church, VA 22042 USA.
RP Hanling, SR (reprint author), Naval Med Ctr San Diego, Dept Anesthesiol, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
NR 6
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U1 0
U2 1
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
EI 1930-613X
J9 MIL MED
JI Milit. Med.
PD JUN
PY 2013
VL 178
IS 6
BP 593
EP 595
DI 10.7205/MILMED-D-13-00073
PG 3
WC Medicine, General & Internal
SC General & Internal Medicine
GA AN7TZ
UT WOS:000340805200002
PM 23756064
ER
PT J
AU Cassler, NM
Sams, R
Cripe, PA
McGlynn, AF
Perry, AB
Banks, BA
AF Cassler, Nicole M.
Sams, Richard
Cripe, Paul A.
McGlynn, Andrea F.
Perry, Alicia B.
Banks, Brett A.
TI Patterns and Perceptions of Supplement Use by US Marines Deployed to
Afghanistan
SO MILITARY MEDICINE
LA English
DT Article
ID DIETARY-SUPPLEMENT; ARMY SOLDIERS; ENERGY
AB Dietary supplements are implicated in an increasing number of minor and serious adverse events, including death. A series of adverse events in deployed Marines using multiple supplements prompted medical officers to investigate the prevalence of supplement use among Marines stationed on Camp Leatherneck, Afghanistan. The investigators developed a survey to identify the types of supplements used, patterns of supplement use, reasons for taking supplements, perceived benefits from using supplements, and self-reported adverse effects. Marines were invited to complete an anonymous 17-question survey while visiting recreational and athletic facilities. A total of 329 active duty Marines completed the survey. The prevalence of supplement use was 72% for males and 42% for females (p = 0.009). Of the 12% of Marines reporting side effects, 79% were taking multiple supplements and 89% were using stimulants. Deployment was significantly associated with new supplement use (p < 0.001). Of users, 81% noted an improvement in physical performance. The majority of deployed Marines use multiple dietary supplements and perceive a high benefit. Given the high prevalence of supplement use and recent deaths associated with supplement use, recommendations are needed to guide the use of certain supplements by U.S. Marines in the deployed environment.
C1 [Cassler, Nicole M.] Walter Reed Natl Mil Med Ctr, Dept Dermatol, Bethesda, MD 20814 USA.
[Sams, Richard] Kings Bay Branch Hlth Clin, Dept Family Med, Kings Bay, GA 31547 USA.
[Cripe, Paul A.] Port Hueneme Branch Hlth Clin, NMCB Four Med Dept, Port Hueneme, CA 93043 USA.
[McGlynn, Andrea F.] Naval Med Ctr Portsmouth, Dept Clin Invest, Portsmouth, VA 23708 USA.
[Perry, Alicia B.] MAG 24 Grp Aid Stn, MAW 1, MCBH Kaneohe Bay, HI 96863 USA.
[Banks, Brett A.] John Peter Smith Hlth Network, Dept Emergency Med, Ft Worth, TX 76104 USA.
RP Cassler, NM (reprint author), Walter Reed Natl Mil Med Ctr, Dept Dermatol, 8901 Wisconsin Ave, Bethesda, MD 20814 USA.
NR 17
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U1 3
U2 4
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
EI 1930-613X
J9 MIL MED
JI Milit. Med.
PD JUN
PY 2013
VL 178
IS 6
BP 659
EP 664
DI 10.7205/MILMED-D-12-00440
PG 6
WC Medicine, General & Internal
SC General & Internal Medicine
GA AN7TZ
UT WOS:000340805200011
PM 23756073
ER
PT J
AU Cortez, JD
Henke, SE
Redeker, E
Fulbright, TE
Riddle, R
Young, J
AF Cortez, Jorge D.
Henke, Scott E.
Redeker, Eric
Fulbright, Tim E.
Riddle, Richard
Young, John
TI Demonstration of Ground-Penetrating Radar as a Useful Tool for Assessing
Pocket Gopher Burrows
SO WILDLIFE SOCIETY BULLETIN
LA English
DT Article
DE burrow systems; Geomys personatus maritimus; ground-penetrating radar;
mapping; maritime pocket gopher; Texas; wildlife management
AB Ground-penetrating radar (GPR) is an innovative and non-invasive method that uses radar to penetrate the ground and develop three-dimensional digital images of the top several meters of the earth. Ground-penetrating radar has been used extensively in the fields of engineering, military science, forensic science, archaeology, and environmental remediation, but has received little attention by wildlife professionals. We demonstrated a possible application of GPR for wildlife studies for mapping burrow systems using maritime pocket gophers (Geomys personatus maritimus), a subspecies of concern as listed by the U.S. Fish and Wildlife Service. Ground-penetrating radar surveys were conducted at Naval Air Station-Corpus Christi on five 15-m x 15-m areas with > 200 above-ground gopher mounds/ha during July 2007. Survey areas were scanned with a Geophysical Survey Systems Inc. SIR-3000, GPR digital control unit and a 900-MHz ground-coupled antenna. Within the 5 areas, we located 8 gophers and mapped 267 m of tunnels that had an average depth of 0.6 m. We were able to differentiate deteriorating or abandoned tunnels from active tunnels, detect an underground pipeline, and distinguish changes in soil texture using GPR. Ground-penetrating radar is a non-destructive and non-invasive method to gain knowledge of fossorial animal movements and potential destabilization of soil integrity. (C) 2013 The Wildlife Society.
C1 [Cortez, Jorge D.; Henke, Scott E.; Redeker, Eric; Fulbright, Tim E.] Texas A&M Univ, Caesar Kleberg Wildlife Res Inst, Kingsville, TX 78363 USA.
[Riddle, Richard] United States Navy, Corpus Christi, TX 78419 USA.
[Young, John] Texas Parks & Wildlife Dept, Austin, TX 78744 USA.
RP Cortez, JD (reprint author), Texas A&M Univ, Caesar Kleberg Wildlife Res Inst, MSC 218,1150 Engn Ave, Kingsville, TX 78363 USA.
EM scott.henke@tamuk.edu
FU U.S. Navy; Texas Parks and Wildlife Department
FX We thank the U.S. Navy and Texas Parks and Wildlife Department for
funding. We thank L. A. Brennan and T. A. Messmer for comments on an
earlier draft of thismanuscript. Collection and use of animals in this
study were approved by the TexasA&MUniversity-Kingsville Animal Care and
Use Committee (ACUC 2009-04-29A) and were consistent with the American
Society of Mammalogists (Gannon et al. 2007). This is publication number
11-116 of the Caesar Kleberg Wildlife Research Institute.
NR 25
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PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1938-5463
J9 WILDLIFE SOC B
JI Wildl. Soc. Bull.
PD JUN
PY 2013
VL 37
IS 2
BP 428
EP 432
DI 10.1002/wsb.279
PG 5
WC Biodiversity Conservation
SC Biodiversity & Conservation
GA V38HP
UT WOS:000209334800026
ER
PT J
AU Aguilar, CO
Krener, AJ
AF Aguilar, Cesar O.
Krener, Arthur J.
TI Patchy solution of a FrancisByrnesIsidori partial differential equation
SO INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
LA English
DT Article
DE output regulation; zero dynamics; center manifolds; periodic
trajectories
ID NONLINEAR-SYSTEMS
AB The solution to the nonlinear output regulation problem requires one to solve a first-order partial differential equation, known as the FrancisByrnesIsidori equations. In this paper, we propose a method to compute approximate solutions to the FrancisByrnesIsidori equations when the zero dynamics of the plant are hyperbolic and the exosystem is two dimensional. With our method, we are able to produce approximations that converge uniformly to the true solution. Our method relies on the periodic nature of two-dimensional analytic center manifolds. Copyright (c) 2012 John Wiley & Sons, Ltd.
C1 [Aguilar, Cesar O.; Krener, Arthur J.] USN, Dept Appl Math, Postgrad Sch, Monterey, CA 93940 USA.
RP Aguilar, CO (reprint author), USN, Dept Appl Math, Postgrad Sch, Monterey, CA 93940 USA.
EM coaguila@nps.edu
FU National Research Council Postdoctoral Fellowship; AFOSR; NSF
FX The authors thank the anonymous referees for their valuable suggestions.
The research in this paper was performed while the first author held a
National Research Council Postdoctoral Fellowship. The research was
supported in part by AFOSR and NSF.
NR 12
TC 1
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U1 0
U2 3
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1049-8923
J9 INT J ROBUST NONLIN
JI Int. J. Robust Nonlinear Control
PD JUN
PY 2013
VL 23
IS 9
BP 1046
EP 1061
DI 10.1002/rnc.2776
PG 16
WC Automation & Control Systems; Engineering, Electrical & Electronic;
Mathematics, Applied
SC Automation & Control Systems; Engineering; Mathematics
GA 134CF
UT WOS:000318186600007
ER
PT J
AU Karamete, BK
Dey, S
Mestreau, EL
Aubry, R
Bulat-Jara, FA
AF Karamete, B. Kaan
Dey, Saikat
Mestreau, Eric L.
Aubry, Romain
Bulat-Jara, Felipe A.
TI An algorithm for discrete booleans with applications to finite element
modeling of complex systems
SO FINITE ELEMENTS IN ANALYSIS AND DESIGN
LA English
DT Article
DE Boolean; Triangulation; Discrete; Mesh; Sizing sources; Remeshing
ID MESH GENERATION; TRIANGULATION; SURFACES; BOUNDARY; ROBUST
AB In this paper we describe a robust algorithm for three-dimensional boolean operations between boundary representation objects whose geometry is given by discrete (faceted) data. The algorithm presents a new approach for computing the intersection graph which is critical for robustness. It uses elementary computational-geometry operations such as, facet-segment intersection, point containment in simplices and edge recovery in a plane, to produce high-level boolean operations including union, intersection, difference as well as the imprint of the boundary of one object onto another. We also demonstrate the extension and application of the algorithm to mesh-based volumes. We show the robustness and efficacy of our algorithm by employing it to model complex three-dimensional finite element mesh models such as a complete ship where some of the model components are defined in a CAD-based system while others come from legacy mesh-based facetized representations. Use of our algorithm has enabled automation of modeling of very complex configurations reducing the turn-around time for analyses-ready numerical representations from several months to hours or less. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Karamete, B. Kaan; Mestreau, Eric L.; Aubry, Romain; Bulat-Jara, Felipe A.] USN, Sotera Def Solut, Res Lab, Mclean, VA 22102 USA.
[Dey, Saikat] USN, Res Lab, Washington, DC 20375 USA.
RP Karamete, BK (reprint author), USN, Sotera Def Solut, Res Lab, 1501 Farm Credit Dr, Mclean, VA 22102 USA.
EM karamete.ctr@nrl.navy.mil
FU DoD High Performance Computing and Modernization Program (HPCMP)
FX This work was funded by the DoD High Performance Computing and
Modernization Program (HPCMP) as part of the Computational Research &
Engineering Acquisition Tools and Environment (CREATE) Meshing and
Geometry (MG) Project.
NR 37
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U1 0
U2 20
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-874X
J9 FINITE ELEM ANAL DES
JI Finite Elem. Anal. Des.
PD JUN
PY 2013
VL 68
BP 10
EP 27
DI 10.1016/j.finel.2013.01.003
PG 18
WC Mathematics, Applied; Mechanics
SC Mathematics; Mechanics
GA 113NW
UT WOS:000316675700002
ER
PT J
AU Krishnamurthy, R
Calhoun, R
Billings, B
Doyle, JD
AF Krishnamurthy, Raghavendra
Calhoun, Ronald
Billings, Brian
Doyle, James D.
TI Mesoscale model evaluation with coherent Doppler lidar for wind farm
assessment
SO REMOTE SENSING LETTERS
LA English
DT Article
ID VALLEY
AB Wind measurements are fundamental inputs for wind resource assessment and the performance of wind farms. Common approaches for wind energy yield assessment are based on (1) observational data from surface station networks and (2) high-resolution computational fluid dynamic or mesoscale models. In this letter, we investigate the potential of applying a high-resolution nested mesoscale model, Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS), to predict low-level wind characteristics for wind farm domains. The model results are compared to scanning coherent Doppler lidar and tower measurements for a wind energy development. This letter focuses on the magnitude of difference between observations and simulations used for wind energy assessment. The results highlight the challenge for straight-forward application of mesoscale models, even well-established models with a relatively fine resolution on the inner nest (333 m), to produce wind predictions of sufficient fidelity and accuracy appropriate for resource assessment or operational support for individual wind farms. While many of the average wind flow features are captured by the model, their detailed spatial and temporal evolution may be improved through tighter integration with local sensor data.
C1 [Krishnamurthy, Raghavendra; Calhoun, Ronald] Arizona State Univ, Environm Remote Sensing Grp, Tempe, AZ 85287 USA.
[Billings, Brian] CNR, Marine Meteorol Div, Monterey, CA USA.
[Doyle, James D.] USN, Res Lab, Marine Meteorol Div, Monterey, CA USA.
RP Krishnamurthy, R (reprint author), Arizona State Univ, Environm Remote Sensing Grp, Tempe, AZ 85287 USA.
EM raghavendr.krishnamurthy@asu.edu
FU Mesoscale Modeling Section of the Naval Research Laboratory in Monterey,
California; Naval Research Laboratory
FX The authors acknowledge RES Americas for providing the lidar and tower
data sets for this study as well as for valuable technical discussions.
The support and hospitality of the Mesoscale Modeling Section of the
Naval Research Laboratory in Monterey, California, was much appreciated
and allowed the participation of R. Calhoun through the ONR Fellow
Program during summer of 2011. The fourth author (JDD) acknowledges the
support from the Naval Research Laboratory base programme. Finally, the
authors thank the reviewers for their constructive comments, which
improved the quality of this letter.
NR 13
TC 0
Z9 0
U1 0
U2 31
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 2150-704X
J9 REMOTE SENS LETT
JI Remote Sens. Lett.
PD JUN 1
PY 2013
VL 4
IS 6
BP 579
EP 588
DI 10.1080/2150704X.2013.769285
PG 10
WC Remote Sensing; Imaging Science & Photographic Technology
SC Remote Sensing; Imaging Science & Photographic Technology
GA 105QO
UT WOS:000316087000007
ER
PT J
AU Helliwell, TM
Konkowski, DA
AF Helliwell, T. M.
Konkowski, D. A.
TI Quantum singularities in spherically symmetric, conformally static
spacetimes
SO PHYSICAL REVIEW D
LA English
DT Article
ID QUASI-REGULAR SPACETIMES; SCALAR FIELD; BLACK-HOLES; DYNAMICS; TIMES;
STATIONARY
AB A definition of quantum singularity for the case of static spacetimes has recently been extended to conformally static spacetimes. Here the theory behind quantum singularities in conformally static spacetimes is reviewed and then applied to a class of spherically symmetric, conformally static spacetimes, including as special cases those studied by Roberts, by Fonarev, and by Husain et al. We use solutions of the generally coupled, massless Klein-Gordon equation as test fields. In this way we find the ranges of metric parameters and coupling coefficients for which classical timelike singularities in these spacetimes are healed quantum mechanically.
C1 [Helliwell, T. M.] Harvey Mudd Coll, Dept Phys, Claremont, CA 91711 USA.
[Konkowski, D. A.] USN Acad, Dept Math, Annapolis, MD 21402 USA.
RP Helliwell, TM (reprint author), Harvey Mudd Coll, Dept Phys, Claremont, CA 91711 USA.
EM helliwell@hmc.edu; dak@usna.edu
NR 49
TC 5
Z9 5
U1 1
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD MAY 31
PY 2013
VL 87
IS 10
AR 104041
DI 10.1103/PhysRevD.87.104041
PG 8
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 156EU
UT WOS:000319805300006
ER
PT J
AU Sellami, L
Newcomb, RW
Sen, S
AF Sellami, Louiza
Newcomb, Robert W.
Sen, Surajit
TI SIMULINK MODELING FOR CIRCUIT REPRESENTATION OF GRANULAR CHAINS
SO MODERN PHYSICS LETTERS B
LA English
DT Article
DE Grains; Hamiltonian nonlinear system; Hertz potential; solitary waves;
Simulink simulation
ID SOLITARY WAVES; HERTZIAN CHAINS; SPHERES
AB After a review of the coupled Newton's equations for a small alignment of grains with a fixed reflecting end wall, the equations are put into block diagrams of Simulink. Simulink simulations are given for 6 grain systems for cubic and Hertz intergrain potentials. The expected granular solitary waves are seen in the simulations. The block diagrams hence convert a single impulse into a traveling energy bundle of fixed width. This work forms the necessary first step for the eventual realization of the mathematical system represented by the granular chain as a Very Large Scale Integrated (VLSI) circuit.
C1 [Sellami, Louiza] USN Acad, Dept Elect Engn, Annapolis, MD USA.
[Newcomb, Robert W.] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
[Sen, Surajit] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA.
RP Sellami, L (reprint author), USN Acad, Dept Elect Engn, Annapolis, MD USA.
EM sellami@usna.edu; newcomb@eng.umd.edu; sen@buffalo.edu
FU US Army Research Office - STIR grant
FX The authors wish to acknowledge Professor Krishna Shenai of the
University of Toledo for bringing them together on this problem. S. Sen
acknowledges support of an US Army Research Office - STIR grant.
NR 21
TC 2
Z9 2
U1 1
U2 9
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
SN 0217-9849
J9 MOD PHYS LETT B
JI Mod. Phys. Lett. B
PD MAY 30
PY 2013
VL 27
IS 13
AR 1350093
DI 10.1142/S0217984913500930
PG 10
WC Physics, Applied; Physics, Condensed Matter; Physics, Mathematical
SC Physics
GA 142IO
UT WOS:000318791000006
ER
PT J
AU Chapler, BC
Mack, S
Myers, RC
Frenzel, A
Pursley, BC
Burch, KS
Dattelbaum, AM
Samarth, N
Awschalom, DD
Basov, DN
AF Chapler, B. C.
Mack, S.
Myers, R. C.
Frenzel, A.
Pursley, B. C.
Burch, K. S.
Dattelbaum, A. M.
Samarth, N.
Awschalom, D. D.
Basov, D. N.
TI Ferromagnetism and infrared electrodynamics of Ga1-xMnxAs
SO PHYSICAL REVIEW B
LA English
DT Article
ID DILUTE MAGNETIC SEMICONDUCTORS; III-V-COMPOUNDS; CURIE-TEMPERATURE;
OPTICAL-SPECTRA; VALENCE-BAND; PHOTOIONIZATION; IMPURITIES; ABSORPTION;
ACCEPTORS; EPILAYERS
AB We report on the magnetic and the electronic properties of the prototype dilute magnetic semiconductor Ga1-xMnx As using infrared (IR) spectroscopy. Trends in the ferromagnetic transition temperature T-C with respect to the IR spectral weight are examined using a sum-rule analysis of IR conductivity spectra. We find nonmonotonic behavior of trends in T-C with the spectral weight to effective Mn ratio, which suggest a strong double-exchange component to the FM mechanism, and highlights the important role of impurity states and localization at the Fermi level. Spectroscopic features of the IR conductivity are tracked as they evolve with temperature, doping, annealing, As-antisite compensation, and are found only to be consistent with a Mn-induced IB scenario. Furthermore, our detailed exploration of these spectral features demonstrates that seemingly conflicting trends reported in the literature regarding a broad mid-IR resonance with respect to carrier density in Ga1-xMnx As are in fact not contradictory. Our study thus provides a consistent experimental picture of the magnetic and electronic properties of Ga1-xMnx As.
C1 [Chapler, B. C.; Frenzel, A.; Pursley, B. C.; Basov, D. N.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA.
[Mack, S.; Awschalom, D. D.] Univ Calif Santa Barbara, Ctr Spintron & Quantum Computat, Santa Barbara, CA 93106 USA.
[Mack, S.] USN, Res Lab, Washington, DC 20375 USA.
[Myers, R. C.] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA.
[Burch, K. S.] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada.
[Burch, K. S.] Univ Toronto, Inst Opt Sci, Toronto, ON M5S 1A7, Canada.
[Dattelbaum, A. M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Samarth, N.] Penn State Univ, Dept Phys, University Pk, PA 16802 USA.
RP Chapler, BC (reprint author), Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA.
RI Mack, Shawn/F-4008-2011; Myers, Roberto/B-4431-2008; Samarth,
Nitin/C-4475-2014; Frenzel, Alex/E-4133-2015;
OI Mack, Shawn/0000-0001-6696-0483; Myers, Roberto/0000-0002-3695-2244;
Samarth, Nitin/0000-0003-2599-346X; Burch, Kenneth/0000-0002-7541-0245
FU Office of Naval Research; National Science Foundation
FX Work at UCSD is supported by the Office of Naval Research. Work at UCSB
is supported by the Office of Naval Research and the National Science
Foundation. Parts of this work were performed at the Center for
Integrated Nanotechnologies, a US Department of Energy, Office of Basic
Energy Sciences user facility.
NR 65
TC 12
Z9 12
U1 1
U2 26
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD MAY 29
PY 2013
VL 87
IS 20
AR 205314
DI 10.1103/PhysRevB.87.205314
PG 12
WC Physics, Condensed Matter
SC Physics
GA 154MD
UT WOS:000319678700004
ER
PT J
AU Murakami, H
Li, T
Peng, M
AF Murakami, Hiroyuki
Li, Tim
Peng, Melinda
TI Changes to environmental parameters that control tropical cyclone
genesis under global warming
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE large-scale parameters; tropical cyclone genesis; global warming;
high-resolution model; prediction; genesis potential index
ID SEA-SURFACE TEMPERATURE; WESTERN NORTH PACIFIC; NONDEVELOPING
DISTURBANCES; CLIMATE-CHANGE; FREQUENCY; SIMULATIONS
AB This study uses the Meteorological Research Institute high-resolution Atmospheric Climate Model to determine whether environmental parameters that control tropical cyclone genesis in the Western North Pacific (WNP) and North Atlantic (NA) may differ in the global warming state. A box difference index was computed to quantitatively assess the role of environmental controlling parameters. The diagnosis of the model outputs shows that in the WNP, dynamic variables are of primary importance for separating developing and nondeveloping disturbances in the present-day climate, and such a relationship remains unchanged in a future warmer climate. This is in contrast to the NA, where box difference index increases for all dynamic variables investigated while it shows little change for thermodynamic variables. This implies that, when compared with the present-day climate in which thermodynamic variables have a major control on tropical cyclone genesis, dynamic and thermodynamic variables have equal control in the NA under the future warmer climate.
C1 [Murakami, Hiroyuki; Li, Tim] Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA.
[Li, Tim] Univ Hawaii Manoa, Dept Meteorol, Honolulu, HI 96822 USA.
[Li, Tim] Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Coll Atmospher Sci, Nanjing, Jiangsu, Peoples R China.
[Peng, Melinda] Naval Res Lab, Monterey, CA 93943 USA.
RP Li, T (reprint author), Univ Hawaii Manoa, Dept Meteorol, Honolulu, HI 96822 USA.
EM timli@hawaii.edu
RI Murakami, Hiroyuki/L-5745-2015
FU ONR [N000141210450]; University of Tsukuba; International Pacific
Research Center (IPRC); JAMSTEC; NASA; NOAA
FX This work was supported by ONR grant N000141210450, by the "KAKUSHIN"
and "SOUSEI" programs of the University of Tsukuba, and by the
International Pacific Research Center (IPRC) that is sponsored by the
JAMSTEC, NASA and NOAA. High-resolution model simulations were performed
on the Earth Simulator. This contribution is School of Ocean and Earth
Science and Technology publication No. 8907 and International Pacific
Research Center publication No. 970.
NR 20
TC 2
Z9 2
U1 3
U2 5
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
EI 1944-8007
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD MAY 28
PY 2013
VL 40
IS 10
BP 2265
EP 2270
DI 10.1002/grl.50393
PG 6
WC Geosciences, Multidisciplinary
SC Geology
GA 277SS
UT WOS:000328840200067
ER
PT J
AU Flanagan, JD
Lefler, AS
Radko, T
AF Flanagan, Jason D.
Lefler, Angela S.
Radko, Timour
TI Heat transport through diffusive interfaces
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE Oceanography; physical; turbulence; diffusion and mixing processes
ID CONVECTION; REGIME; ICE
AB We perform a series of 3-D Direct Numerical Simulations (DNS) to assess the vertical heat transport through thermohaline staircases in the Arctic Ocean. The diagnostics of DNS, performed for the first time in the realistic parameter range, result in vertical fluxes exceeding those of extant four-thirds flux laws by as much as a factor of 2 and suggest that the 4/3 exponent may require downward revision. Through a series of equivalent 2-D DNS, we show that they are consistent with their more resource-intensive 3-D counterparts for sufficiently large density ratio (R) but underestimate heat transport for low R. Finally, we examine the role of boundary conditions in controlling the vertical heat transport. Rigid boundariesa necessary ingredient in laboratory-derived flux-lawsare shown to reduce the estimates of heat fluxes relative to the corresponding periodic boundary conditions. mined
C1 [Flanagan, Jason D.; Lefler, Angela S.; Radko, Timour] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
RP Flanagan, JD (reprint author), Naval Postgrad Sch, Grad Sch Engn & Appl Sci, Dept Oceanog, Monterey, CA 93943 USA.
EM jdflanag@nps.edu
FU National Research Council Award at the Naval Postgraduate School,
Monterey; NSF [CBET0933057, ANT0944536]; National Science Foundation
[OCI-1053575]
FX This research was performed while J.F. held a National Research Council
Award at the Naval Postgraduate School, Monterey. T. R. is supported by
the NSF (CBET0933057 and ANT0944536). This work used the Extreme Science
and Engineering Discovery Environment (XSEDE), which is supported by
National Science Foundation grant number OCI-1053575. The authors thank
Dan Kelley and an anonymous reviewer for their comments.
NR 14
TC 15
Z9 15
U1 1
U2 3
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
EI 1944-8007
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD MAY 28
PY 2013
VL 40
IS 10
BP 2466
EP 2470
DI 10.1002/grl.50440
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 277SS
UT WOS:000328840200105
ER
PT J
AU Bendler, JT
Boyles, DA
Edmondson, CA
Filipova, T
Fontanella, JJ
Westgate, MA
Wintersgill, MC
AF Bendler, John T.
Boyles, David A.
Edmondson, Charles A.
Filipova, Tsvetanka
Fontanella, John J.
Westgate, Mark A.
Wintersgill, M. C.
TI Dielectric Properties of Bisphenol A Polycarbonate and Its Tethered
Nitrile Analogue
SO MACROMOLECULES
LA English
DT Article
ID ELECTRICAL-CONDUCTIVITY; AROMATIC POLYCARBONATES; LITHIUM-SALTS;
HIGH-PRESSURE; RELAXATION; DYNAMICS; LIQUIDS; GLASSY; POLYMERS; OXIDE)
AB The relative permittivity and dielectric strength have been determined for a bisphenol A polycarbonate (BPA-PC), in which a cyanoethyl group has been substituted for one of the geminal dimethyl groups. The new material (CN-PC) has a glass transition temperature that is 19 K higher than that for BPA-PC. In addition, the dielectric strength of CN-PC, 405 V/mu m, is somewhat smaller than that for BPA-PC, 620 V/mu m. The relative permittivity was determined from 10 to 10(5) Hz over a wide temperature range and at pressures up to 0.25 GPa. While the real part of the relative permittivity at 10(3) Hz and room temperature for BPA-PC is about 3, that for CN-PC is found to be greater than 4. Correspondingly, the gamma relaxation region in CN-PC is very strong. For the gamma relaxation, a strong increase in peak height as temperature increases and a strong decrease in peak height as pressure increases are observed A relaxation is found at temperatures higher than the gamma relaxation. This process is labeled as the beta relaxation because it appears to be related to the beta relaxation in BPA-PC in that the strength and position depend on the history of the material. The effects of pressure on the gamma relaxation for both CN-PC and BPA-PC are quite large and similar to those previously seen for the gamma relaxation in a fluorinated tetraaryl bisphenol A polycarbonate (DiF p-TABPA-PC). In fact, the activation volume is found to be approximately the same for all three BPA-PC-based materials despite wide variations in both peak position and peak height Finally, computer studies of the model compounds, 4,4'-diphenylpentanenitrile and diphenyl carbonate, were carried out Both provide insight into the nature of the gamma relaxation with the latter yielding an activation volume in approximate agreement with the experimental values.
C1 [Bendler, John T.] BSC Inc, Rapid City, SD 57702 USA.
[Boyles, David A.; Filipova, Tsvetanka] South Dakota Sch Mines & Technol, Dept Chem, Rapid City, SD 57701 USA.
[Edmondson, Charles A.; Fontanella, John J.; Westgate, Mark A.; Wintersgill, M. C.] USN Acad, Dept Phys, Annapolis, MD 21402 USA.
RP Fontanella, JJ (reprint author), USN Acad, Dept Phys, Annapolis, MD 21402 USA.
EM fontanel@comcast.net
FU U.S. Office of Naval Research; Department of Defense-Army Research
Office [DAAD19-01-1-0482]; JJFontanella LLC
FX This work was supported in part by the U.S. Office of Naval Research.
D.A.B., J.T.B., and T.S.F. gratefully acknowledge financial support by
the Department of Defense-Army Research Office (Grant DAAD19-01-1-0482).
J.J.F. acknowledges support from JJFontanella LLC.
NR 30
TC 11
Z9 11
U1 1
U2 24
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
J9 MACROMOLECULES
JI Macromolecules
PD MAY 28
PY 2013
VL 46
IS 10
BP 4024
EP 4033
DI 10.1021/ma4002269
PG 10
WC Polymer Science
SC Polymer Science
GA 156BQ
UT WOS:000319795800034
ER
PT J
AU Fragiadakis, D
Runt, J
AF Fragiadakis, Daniel
Runt, James
TI Molecular Dynamics of Segmented Polyurethane Copolymers: Influence of
Soft Segment Composition
SO MACROMOLECULES
LA English
DT Article
ID X-RAY-SCATTERING; MICROSTRUCTURAL ORGANIZATION; NETWORKS; LENGTH;
ELASTOMERS; POLYESTER; MOBILITY; URETHANE
AB Dielectric relaxation spectroscopy was used to investigate the molecular dynamics of model segmented polyurethane copolymers having identical hard segments and hard segment weight fractions, but with four different soft segment chemistries of particular interest in biomedical devices. All soft segments have molecular weight similar to 1000 g/mol and are composed of either tetramethylene oxide, hexamethylene oxide, aliphatic carbonate, or dimethylsiloxane (PDMS) segments. These microphase-separated materials exhibit rich dielectric relaxation behavior: up to two relaxations in the glassy state, a segmental alpha relaxation (two for the polymer with predominately PDMS soft segments), and three slower relaxations. The slowest process arises from interfacial (MWS) polarization, and its strength decreases significantly with increasing temperature (over a few tens of degrees) and disappears at a temperature similar to that at which the small-angle X-ray scattering from the phase-separated microstructure disappears.
C1 [Fragiadakis, Daniel] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
[Runt, James] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA.
RP Runt, J (reprint author), Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA.
EM runt@matse.psu.edu
RI Fragiadakis, Daniel/A-4510-2009
FU National Science Foundation [DMR-0907139, DMR-1206571]; Office of Naval
Research
FX The authors express their appreciation to the National Science
Foundation, Polymers Program, for support of this research under Grants
DMR-0907139 and DMR-1206571. This work was supported in part by the
Office of Naval Research. We also thank AorTech Biomaterials (Dr. Ajay
Padsalgikar and Ms. Jadwiga Weksler) for providing the PUs used in this
investigation.
NR 27
TC 18
Z9 18
U1 5
U2 57
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
J9 MACROMOLECULES
JI Macromolecules
PD MAY 28
PY 2013
VL 46
IS 10
BP 4184
EP 4190
DI 10.1021/ma4006395
PG 7
WC Polymer Science
SC Polymer Science
GA 156BQ
UT WOS:000319795800053
ER
PT J
AU Lewis, GR
Bunting, WE
Zope, RR
Dunlap, BI
Ellenbogen, JC
AF Lewis, Greyson R.
Bunting, William E.
Zope, Rajendra R.
Dunlap, Brett I.
Ellenbogen, James C.
TI Smooth scaling of valence electronic properties in fullerenes: From one
carbon atom, to C-60, to graphene
SO PHYSICAL REVIEW A
LA English
DT Article
ID LOWEST-ENERGY FULLERENES; IONIZATION-POTENTIALS; AFFINITIES; SEARCH;
MODEL
AB Scaling of quantum capacitances and valence electron detachment energies is studied for icosahedral and nonicosahedral fullerenes. Scaling trends are considered from zero to infinite average radius, where a fullerene's local surface properties are similar to those of graphene. Detailed density-functional-theory calculations are performed to determine the geometries and detachment energies of icosahedral fullerenes, while values of these quantities are obtained for nonicosahedral species from previously published experimental results. Strongly linear, quasiclassical scaling versus average radii (r) over bar (n) is seen for the quantum capacitances, but on two different scaling lines for icosahedral and nonicosahedral species, respectively. By contrast, nonclassical, nonlinear scaling versus 1/(r) over bar (n) is seen for the electron detachment energies, i.e., the valence ionization potentials and electron affinities. This nonlinearity is not accounted for by classical theories that are used to explain trends in electronic properties of fullerenes and usually give accurate quantitative estimates. Instead, simple quantum equations are derived to account for nonlinearities in the metal-particle-like electron detachment energy scaling and to show that these are responsible for nonclassical, nonzero intercepts in the capacitance scaling lines of the fullerenes. Last, it is found that points representing the carbon atom and the graphene limit lie on scaling lines for icosahedral fullerenes, so their quantum capacitances and their detachment energies scale smoothly from one C atom, to C-60, to graphene.
C1 [Lewis, Greyson R.; Bunting, William E.; Ellenbogen, James C.] Mitre Corp, Nanosyst Grp, Mclean, VA 22102 USA.
[Zope, Rajendra R.] Univ Texas El Paso, Dept Phys, El Paso, TX 79958 USA.
[Dunlap, Brett I.] USN, Res Lab, Theoret Chem Sect, Washington, DC 20375 USA.
RP Lewis, GR (reprint author), Mitre Corp, Nanosyst Grp, 7525 Colshire Dr, Mclean, VA 22102 USA.
EM brett.dunlap@nrl.navy.mil; ellenbgn@mitre.org
FU MITRE Innovation Program through NRL; Office of Naval Research through
NRL; DOE Basic Energy Sciences [DE-SC0006818]
FX The authors gratefully acknowledge valuable conversations with C.
Picconatto and S. Das of the MITRE Nanosystems Group, plus valuable
comments on the manuscript by C. White of NRL. At MITRE, this research
was funded by the MITRE Innovation Program, while at the Naval Research
Laboratory it was supported by the Office of Naval Research, both
directly and through NRL. At the University of Texas at El Paso,
financial support came from DOE Basic Energy Sciences Grant No.
DE-SC0006818.
NR 25
TC 2
Z9 2
U1 1
U2 18
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
J9 PHYS REV A
JI Phys. Rev. A
PD MAY 28
PY 2013
VL 87
IS 5
AR 052515
DI 10.1103/PhysRevA.87.052515
PG 8
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 153QK
UT WOS:000319617300009
ER
PT J
AU Drob, DP
Broutman, D
Hedlin, MA
Winslow, NW
Gibson, RG
AF Drob, D. P.
Broutman, D.
Hedlin, M. A.
Winslow, N. W.
Gibson, R. G.
TI A method for specifying atmospheric gravity wavefields for long-range
infrasound propagation calculations
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE infrasound; gravity waves; ray tracing; siesmology; acoustics
ID SIMPLIFIED FOURIER METHOD; TRAPPED LEE WAVES; THERMOSPHERIC RESPONSES;
MOUNTAIN WAVES; DRAG; PARAMETERIZATION; DISSIPATION; MORPHOLOGY;
EVOLUTION; SPECTRA
AB Two important challenges in infrasound propagation physics are (1) to explain frequently observed infrasound signals in the classical near-field shadow zones and (2) to accurately predict observed waveform amplitude and signal duration. For these problems, the role that small-scale internal atmospheric gravity wave fluctuations play has recently been realized. This paper provides a methodology for representing small-scale internal gravity wave fluctuations which is suitable for infrasound propagation calculations. Adapted from the numerical weather prediction and climate modeling communities, the resulting stochastic gravity wave noise field model is three-dimensional, time dependent, and self-consistent with the atmospheric background state. To illustrate the methodology the resultant gravity wavefields are applied to ray-trace simulations of observed infrasound travel times for a dense seismic network in the Western United States which recorded infrasound signals from a large surface explosion.
C1 [Drob, D. P.] USN, Res Lab, Geospace Sci & Technol Branch, Div Space Sci, Washington, DC 20375 USA.
[Broutman, D.] Computat Phys Inc, Springfield, VA USA.
[Hedlin, M. A.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Winslow, N. W.; Gibson, R. G.] Raytheon BBN Technol, Arlington, VA USA.
RP Drob, DP (reprint author), USN, Res Lab, Geospace Sci & Technol Branch, Div Space Sci, Washington, DC 20375 USA.
EM douglas.drob@nrl.navy.mil
RI Drob, Douglas/G-4061-2014
OI Drob, Douglas/0000-0002-2045-7740
FU Office of Naval Research (ONR); National Nuclear Security Administration
(NNSA) [DE-AI52-08NA28653, DE-AC52-08NA28652]; U.S. Army Space and
Missile Defense Command (SMDC) [W9113M-06-C-0029]; NSF [EAR-1053576]
FX The GEOS-5 data utilized in conjunction with other data sources in the
NRL G2S atmospheric specification for the two examples were provided by
the Global Modeling and Assimilation Office (GMAO) at NASA Goddard Space
Flight Center through the online data portal in the NASA Center for
Climate Simulation. The NOAA GFS, also utilized in the G2S
specifications, was obtained from NOAA's National Operational Model
Archive and Distribution System (NOMADS), which is maintained at NOAA's
National Climatic Data Center (NCDC). We acknowledge support from the
Office of Naval Research (ONR), National Nuclear Security Administration
(NNSA) under contract DE-AI52-08NA28653 and DE-AC52-08NA28652, and the
U.S. Army Space and Missile Defense Command (SMDC) project
W9113M-06-C-0029. M. A. H. Hedlin would also like to acknowledge support
provided by NSF under contract EAR-1053576.
NR 42
TC 19
Z9 19
U1 0
U2 4
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD MAY 27
PY 2013
VL 118
IS 10
BP 3933
EP 3943
DI 10.1029/2012JD018077
PG 11
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 229NB
UT WOS:000325272000002
ER
PT J
AU Jung, E
Albrecht, B
Prospero, JM
Jonsson, HH
Kreidenweis, SM
AF Jung, Eunsil
Albrecht, Bruce
Prospero, Joseph M.
Jonsson, Haflidi H.
Kreidenweis, Sonia M.
TI Vertical structure of aerosols, temperature, and moisture associated
with an intense African dust event observed over the eastern Caribbean
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE SAL; aerosol vertical transport; Barbados; aerosol PSD; cloud processing
ID SAHARAN AIR LAYER; EQUATORIAL NORTH-ATLANTIC; DATA ASSIMILATION;
BOUNDARY-LAYER; OCEAN; VALIDATION; TRANSPORT; LIDAR; SUPPRESSION;
RETRIEVALS
AB An unusually intense African dust event affected a large area of the western Atlantic and eastern Caribbean in early April 2010. Measurements made east of Barbados from the Center for Interdisciplinary Remotely Piloted Aircraft Studies (CIRPAS) Twin Otter research aircraft are used to characterize particle size distributions; vertical distributions of aerosols, temperature, and moisture; and processes leading to the observed stratification in the boundary layer. The vertical profiles of various aerosol characterizations were similar on both days and show three layers with distinct aerosol and thermodynamic characteristics: the Saharan Air Layer (SAL; similar to 2.2km500m), a subcloud layer (SCL; surface to similar to 500m), and an intermediate layer extending between them. The SAL and SCL display well-mixed aerosol and thermodynamic characteristics; but the most significant horizontal and vertical variations in aerosols and thermodynamics occur in the intermediate layer. The aerosol variability observed in the intermediate layer is likely associated with modification by shallow cumulus convection occurring sometime in the prior history of the air mass as it is advected across the Atlantic. A comparison of the thermodynamic structure observed in the event from its origin over Africa with that when it reached Barbados indicates that the lower part of the SAL was moistened by surface fluxes as the air mass was advected across the Atlantic. Mixing diagrams using aerosol concentrations and water vapor mixing ratios as conserved parameters provide insight into the vertical transports and mixing processes that may explain the observed aerosol and thermodynamic variability in each layer.
C1 [Jung, Eunsil; Albrecht, Bruce; Prospero, Joseph M.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL 33149 USA.
[Jonsson, Haflidi H.] Naval Postgrad Sch, Ctr Interdisciplinary Remotely Piloted Aircraft S, Monterey, CA USA.
[Kreidenweis, Sonia M.] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA.
RP Jung, E (reprint author), Univ Miami, RSMAS MPO, 4600 Rickenbacker Causeway, Miami, FL 33152 USA.
EM eunsil.jung@gmail.com
RI Kreidenweis, Sonia/E-5993-2011;
OI Kreidenweis, Sonia/0000-0002-2561-2914; Prospero,
Joseph/0000-0003-3608-6160
FU ONR [N000140810465]
FX We thank all the individuals who assisted in making the observations
from the CIRPAS Twin Otter during BACEX. A particular note of
appreciation is due to Patrick Chuang of University of California Santa
Cruz and David Painemal of the University of Miami, who were the onboard
observers during the April 1 and April 2 flights. We are very
appreciative of the comprehensive review and constructive comments
provided by an anonymous reviewer. We thank Judd Welton and his staff
for establishing and maintaining the Ragged Point MPLNET sites used in
this investigation. Figure 11 is obtained from MPLNET
(http://mplnet.gsfc.nasa.gov/). The authors gratefully acknowledge the
NOAA Air Resources Laboratory (ARL) for the provision of the HYSPLIT
transport and dispersion model and/or READY website
(http://ready.arl.noaa.gov) used in this publication. Figure 4 is
downloaded from the MODIS satellite website
(http://modis-atmos.gsfc.nasa.gov/IMAGES/index.html). Images of MODIS
AOD in Figure 5 were downloaded from the Naval Research
Laboratory/Monterey Aerosol page
(http://www.nrlmry.navy.mil/aerosol_web/index_frame.html). Sounding data
in Figures 6 and 7 were obtained from the University of Wyoming's online
Upper Air Data (http://weather.uwyo.edu/upperair/sounding.html). This
study was funded by ONR grant N000140810465.
NR 46
TC 8
Z9 8
U1 1
U2 17
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD MAY 27
PY 2013
VL 118
IS 10
BP 4623
EP 4643
DI 10.1002/jgrd.50352
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 229NB
UT WOS:000325272000050
ER
PT J
AU Toth, TD
Zhang, JL
Campbell, JR
Reid, JS
Shi, YX
Johnson, RS
Smirnov, A
Vaughan, MA
Winker, DM
AF Toth, Travis D.
Zhang, Jianglong
Campbell, James R.
Reid, Jeffrey S.
Shi, Yingxi
Johnson, Randall S.
Smirnov, Alexander
Vaughan, Mark A.
Winker, David M.
TI Investigating enhanced Aqua MODIS aerosol optical depth retrievals over
the mid-to-high latitude Southern Oceans through intercomparison with
co-located CALIOP, MAN, and AERONET data sets
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE aerosol; sea salt; MODIS; satellite; CALIPSO; MAN
ID CLOUD CONTAMINATION; DATA-ASSIMILATION; SATELLITE DATA; GOCART MODEL;
PART I; CALIPSO; ALGORITHM; PRODUCTS; VALIDATION; THICKNESS
AB A band of enhanced aerosol optical depth (AOD) over the mid-to-high latitude Southern Oceans exists in some passive satellite-based aerosol data sets, including Moderate Resolution Imaging Spectroradiometer (MODIS) products. Past studies suggest several potential causes contributing to this phenomenon, including signal uncertainty, retrieval bias, and cloud contamination. In this paper, quality-assured Aqua MODIS aerosol products in this zonal band are investigated to assess cloud contamination as a cause. Spatially and temporally collocated cloud and aerosol products produced by the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) project relative to Aqua MODIS AOD in this region are considered. Maritime Aerosol Network (MAN) and Aerosol Robotic Network (AERONET) AOD data are also collocated with Aqua MODIS retrievals for surface context. The results of this study indicate that the high Aqua MODIS AOD are not seen in the CALIOP aerosol products, cannot be screened using active profiling of collocated observations for cloud presence, and are not detected by ground-based observations such as MAN and AERONET. Enhanced AOD values are attributable primarily to stratocumulus and low broken cumulus cloud contamination, as identified with CALIOP products. But these clouds explain only about 30-40% of the total anomaly. Cirrus cloud contamination is also a factor. However, in contrast to the rest of the globe, they contribute less overall, relative to low-level liquid water clouds, which are considered likely the result of misidentification of relatively warm cloud tops compared with surrounding open seas.
C1 [Toth, Travis D.; Zhang, Jianglong; Shi, Yingxi; Johnson, Randall S.] Univ N Dakota, Dept Atmospher Sci, Grand Forks, ND 58202 USA.
[Campbell, James R.; Reid, Jeffrey S.] Naval Res Lab, Marine Meteorol Div, Aerosol & Radiat Sci Sect, Monterey, CA USA.
[Smirnov, Alexander] Sigma Space Corp, Greenbelt, MD USA.
[Vaughan, Mark A.; Winker, David M.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
RP Zhang, JL (reprint author), Univ N Dakota, Dept Atmospher Sci, 4149 Univ Ave Stop 9006, Grand Forks, ND 58202 USA.
EM jzhang@atmos.und.edu
RI Reid, Jeffrey/B-7633-2014; Campbell, James/C-4884-2012
OI Reid, Jeffrey/0000-0002-5147-7955; Campbell, James/0000-0003-0251-4550
FU Office of Naval Research [32, 35]; NASA Interagency Agreement
[NNG12HG05I]; NASA Earth and Space Science Fellowship (NESSF) Program
FX This research was funded through the support of the Office of Naval
Research Codes 32 and 35. Author JRC acknowledges the support of NASA
Interagency Agreement NNG12HG05I on behalf of the NASA Micropulse Lidar
Network. Author YS acknowledges the support of the NASA Earth and Space
Science Fellowship (NESSF) Program. CALIPSO data were obtained from the
NASA Langley Research Center Atmospheric Science Data Center. MODIS data
were obtained from NASA Goddard Space Flight Center. We acknowledge the
AERONET and MAN programs, their contributing principal investigators and
their staff for coordinating the sites and data used for this
investigation.
NR 53
TC 17
Z9 18
U1 1
U2 13
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD MAY 27
PY 2013
VL 118
IS 10
BP 4700
EP 4714
DI 10.1002/jgrd.50311
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 229NB
UT WOS:000325272000056
ER
PT J
AU Osofsky, MS
Cheng, L
Bailey, WE
Bussmann, K
Parker, D
AF Osofsky, M. S.
Cheng, L.
Bailey, W. E.
Bussmann, K.
Parker, D.
TI Measurement of the transport spin polarization of FeV using
point-contact Andreev reflection
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID ELECTRONIC-STRUCTURE; THIN-FILMS; MAGNETORESISTANCE; JUNCTIONS; MOMENTS
AB The Fe1-xVx alloy system exhibits the lowest known Gilbert relaxation rate of any ferromagnetic metal or binary alloy with G = 35 MHz at x = 27% V. Low relaxation rates are of particular interest in modern spin electronic applications involving spin torque. The transport spin polarization of a series of sputtered epitaxial Fe1-xVx samples was measured using point contact Andreev reflection. Values of the transport spin polarization agree well with those measured for pure Fe and are independent of composition. The results indicate that the substitution of up to 50% of V for Fe does not reduce the spin polarization in the alloy. (C) 2013 AIP Publishing LLC.
C1 [Osofsky, M. S.; Bussmann, K.] USN, Res Lab, Mat & Sensors Branch, Washington, DC 20375 USA.
[Cheng, L.; Bailey, W. E.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA.
[Parker, D.] Oak Ridge Natl Lab, Adv Mat Grp, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RP Osofsky, MS (reprint author), USN, Res Lab, Mat & Sensors Branch, Washington, DC 20375 USA.
FU National Science Foundation [U.S. NSF-ECCS-0925829]; Army Research
Office [DAW911NF-07-1-0326]; ORNL LDRD SEED program [S12-006]
FX The authors wish to acknowledge I. Mazin for discussions on the LAPW
calculation and for providing the PCAR fitting routine. We also
acknowledge K. Jensen for modifying the fitting routine. W. E. B.
acknowledges the National Science Foundation (Grant No. U.S.
NSF-ECCS-0925829) and the Army Research Office (Grant No.
DAW911NF-07-1-0326) for support. D. P. acknowledges the financial
support of the ORNL LDRD SEED program project S12-006, "Rare-Earth-Free
Magnets: Compute, Create, Characterize".
NR 27
TC 3
Z9 3
U1 2
U2 21
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAY 27
PY 2013
VL 102
IS 21
AR 212412
DI 10.1063/1.4808209
PG 4
WC Physics, Applied
SC Physics
GA 167GV
UT WOS:000320620400051
ER
PT J
AU Ramanathan, S
Petersen, G
Wijesundara, K
Thota, R
Stinaff, EA
Kerfoot, ML
Scheibner, M
Bracker, AS
Gammon, D
AF Ramanathan, Swati
Petersen, Greg
Wijesundara, Kushal
Thota, Ramana
Stinaff, E. A.
Kerfoot, Mark L.
Scheibner, Michael
Bracker, Allan S.
Gammon, D.
TI Quantum-confined Stark effects in coupled InAs/GaAs quantum dots
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID OPTICAL-PROPERTIES; WELLS
AB We report the effects of tunnel coupling on the Quantum-Confined Stark Effect (QCSE) for excitons in InAs/GaAs coupled quantum dots (CQDs). As the barrier separating the dots is reduced, the zero-field dipole moment and the polarizability are both found to increase. This systematic variation as a function of barrier thickness is due to factors including the formation of molecular wavefunctions, the electron/hole effective masses, and the CQD structural properties. The dipole moment for the interdot exciton is found to be up to 100 times larger than that of the intradot exciton resulting in a predominantly linear shift with field. The ability to control the QCSE of the exciton in a single CQD could be useful for a new class of single photon optical switches and tunable emitters. (C) 2013 AIP Publishing LLC.
C1 [Ramanathan, Swati; Petersen, Greg; Wijesundara, Kushal; Thota, Ramana; Stinaff, E. A.] Nanoscale & Quantum Phenomena Inst, Dept Phys & Astron, Athens, OH 45701 USA.
[Kerfoot, Mark L.; Scheibner, Michael] Univ Calif Merced, Dept Phys, Merced, CA 95343 USA.
[Bracker, Allan S.; Gammon, D.] USN, Res Lab, Washington, DC 20375 USA.
RP Ramanathan, S (reprint author), Nanoscale & Quantum Phenomena Inst, Dept Phys & Astron, 1 Univ Terrace, Athens, OH 45701 USA.
EM stinaff@ohio.edu
FU NSF [DMR-1005525]; NSA/LPS; MURI/Army; Ohio University CMSS; NQPI
FX This work was supported by the NSF (DMR-1005525), NSA/LPS, MURI/Army,
and the Ohio University CMSS and NQPI programs.
NR 14
TC 6
Z9 6
U1 2
U2 41
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAY 27
PY 2013
VL 102
IS 21
AR 213101
DI 10.1063/1.4807770
PG 4
WC Physics, Applied
SC Physics
GA 167GV
UT WOS:000320620400058
ER
PT J
AU Cebik, J
McDonough, JK
Peerally, F
Medrano, R
Neitzel, I
Gogotsi, Y
Osswald, S
AF Cebik, Jonathan
McDonough, John K.
Peerally, Filipe
Medrano, Rene
Neitzel, Ioannis
Gogotsi, Yury
Osswald, Sebastian
TI Raman spectroscopy study of the nanodiamond-to-carbon onion
transformation
SO NANOTECHNOLOGY
LA English
DT Article
ID LOWER TEMPERATURE; DETONATION NANODIAMOND; ANNEALING NANODIAMOND;
SELECTIVE OXIDATION; ARC-DISCHARGE; GRAPHITIZATION; NANOPARTICLES;
DIAMOND; VACUUM; MICROSTRUCTURE
AB Here, we present a comprehensive study analyzing early stages of the transformation of detonation nanodiamond (ND) powder to graphitic carbon onions via thermal annealing in argon atmosphere. Raman spectroscopy was employed to monitor this transformation, starting with the sp(3)-to-sp(2) conversion of the ND surface at the onset of the graphitization process. Additionally, transmission electron microscopy, x-ray diffraction, and thermogravimetric analysis were used to supplement the structural information obtained from Raman spectroscopy and allow for an accurate interpretation of the obtained Raman data. The effect of the annealing time on the transformation process was also studied to determine the kinetics of the conversion at low temperatures. The results presented in this study complement previous work on ND annealing and provide deeper insight into the nanodiamond-to-carbon onion conversion mechanism, in particular the time and size dependence. We present further evidence for the existence of a disordered sp(2) phase as an intermediate step in the transformation process.
C1 [Cebik, Jonathan; Peerally, Filipe; Medrano, Rene; Osswald, Sebastian] USN, Dept Phys, Postgrad Sch, Monterey, CA 93943 USA.
[McDonough, John K.; Neitzel, Ioannis; Gogotsi, Yury] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA.
[McDonough, John K.; Neitzel, Ioannis; Gogotsi, Yury] AJ Drexel Nanotechnol Inst, Philadelphia, PA 19104 USA.
RP Osswald, S (reprint author), USN, Dept Phys, Postgrad Sch, 1 Univ Circle, Monterey, CA 93943 USA.
EM sosswald@nps.edu
RI Gogotsi, Yury/B-2167-2008
OI Gogotsi, Yury/0000-0001-9423-4032
FU Research Initiative Program (RIP) of the Naval Postgraduate School;
Fluid Interface Reactions, Structures and Transport (FIRST) Center an
Energy Frontier Research Center; US Department of Energy, Office of
Science, Office of Basic Energy Sciences
FX The authors are thankful to Olha Mashtalir (Drexel University) for TEM
analysis. This work was supported by the Research Initiative Program
(RIP) of the Naval Postgraduate School. Research at Drexel University
was supported by the Fluid Interface Reactions, Structures and Transport
(FIRST) Center, an Energy Frontier Research Center funded by the US
Department of Energy, Office of Science, Office of Basic Energy
Sciences.
NR 51
TC 35
Z9 35
U1 5
U2 115
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0957-4484
J9 NANOTECHNOLOGY
JI Nanotechnology
PD MAY 24
PY 2013
VL 24
IS 20
AR 205703
DI 10.1088/0957-4484/24/20/205703
PG 10
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 130ZS
UT WOS:000317960400017
PM 23598775
ER
PT J
AU Thakur, GA
Bajaj, S
Paronis, C
Peng, Y
Bowman, AL
Barak, LS
Caron, MG
Parrish, D
Deschamps, JR
Makriyannis, A
AF Thakur, Ganesh A.
Bajaj, Shama
Paronis, Carol
Peng, Yan
Bowman, Anna L.
Barak, Lawrence S.
Caron, Marc G.
Parrish, Demon
Deschamps, Jeffrey R.
Makriyannis, Alexandros
TI Novel Adamantyl Cannabinoids as CB1 Receptor Probes
SO JOURNAL OF MEDICINAL CHEMISTRY
LA English
DT Article
ID AFFINITY IRREVERSIBLE PROBE; SIDE-CHAIN; CANNABINERGIC LIGANDS;
SELECTIVE LIGANDS; ENANTIOSELECTIVE SYNTHESIS; AGONIST; BRAIN; ANALOGS;
SYSTEM; IDENTIFICATION
AB In previous studies, compound 1 (AM411), a 3-(1-adamantyl) analogue of the phytocannabinoid (-)-Delta(8)-tetrahydrocannabinol (Delta(8)-THC), was shown to have improved affinity and selectivity for the CB1 receptor. In this work, we further explored the role of the 1-adamantyl group at the C-3 position in a series of tricyclic cannabinoid analogues modified at the 9-northern aliphatic hydroxyl (NAH) position. Of these, 9-hydroxymethyl hexahydrocannabinol 11 (AM4054) exhibited high CB1 affinity and full agonist profile. In the cAMP assay, the 9-hydroxymethyl cannabinol analogue 24 (AM4089) had a partial agonist profile, with high affinity and moderate selectivity for rCB1 over hCB2. In vivo results in rat models of hypothermia and analgesia were congruent with in vitro data. Our in vivo data indicate that 3-(1-adamantyl) substitution, within NAH cannabinergics, imparts improved pharmacological profiles when compared to the corresponding, traditionally used 3-dimethylheptyl analogues and identifies 11 and 24 as potentially useful in vivo CB1 cannabinergic probes.
C1 [Thakur, Ganesh A.; Bajaj, Shama; Paronis, Carol; Peng, Yan; Bowman, Anna L.; Makriyannis, Alexandros] Northeastern Univ, Ctr Drug Discovery, Boston, MA 02115 USA.
[Thakur, Ganesh A.; Paronis, Carol; Makriyannis, Alexandros] Northeastern Univ, Dept Pharmaceut Sci, Boston, MA 02115 USA.
[Bajaj, Shama; Makriyannis, Alexandros] Northeastern Univ, Dept Chem & Chem Biol, Boston, MA 02115 USA.
[Barak, Lawrence S.; Caron, Marc G.] Duke Univ, Med Ctr, Dept Cell Biol, Durham, NC 27710 USA.
[Parrish, Demon; Deschamps, Jeffrey R.] USN, Res Lab, Washington, DC 20375 USA.
RP Thakur, GA (reprint author), Northeastern Univ, Ctr Drug Discovery, 116 Mugar Hall,360 Huntington Ave, Boston, MA 02115 USA.
EM g.thakur@neu.edu; a.makriyannis@neu.edu
OI Deschamps, Jeffrey/0000-0001-5845-0010
FU National Institute on Drug Abuse [DA07215, DA3801, PO1 DA09158,
DA027113, P30-DA029925]; Office of Naval Research [N00014-11-AF-0-0002]
FX This work was supported by grants from the National Institute on Drug
Abuse (DA07215 (A.M.), DA3801 (A.M.), PO1 DA09158 (A.M.), DA027113
(G.A.T.), and P30-DA029925 (L.S.B.; M.G.C.). The authors also thank the
Office of Naval Research (Award No. N00014-11-AF-0-0002). We are
thankful to Jodi Wood for her help with radioligand binding and cAMP
assays.
NR 64
TC 10
Z9 10
U1 0
U2 16
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0022-2623
J9 J MED CHEM
JI J. Med. Chem.
PD MAY 23
PY 2013
VL 56
IS 10
BP 3904
EP 3921
DI 10.1021/jm4000775
PG 18
WC Chemistry, Medicinal
SC Pharmacology & Pharmacy
GA 154CW
UT WOS:000319650100011
PM 23621789
ER
PT J
AU Verbarg, J
Plath, WD
Shriver-Lake, LC
Howell, PB
Erickson, JS
Golden, JP
Ligler, FS
AF Verbarg, Jasenka
Plath, William D.
Shriver-Lake, Lisa C.
Howell, Peter B., Jr.
Erickson, Jeffrey S.
Golden, Joel P.
Ligler, Frances S.
TI Catch and Release: Integrated System for Multiplexed Detection of
Bacteria
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID POLYMERASE-CHAIN-REACTION; ON-A-CHIP; PATHOGEN DETECTION; MICROFLUIDIC
SYSTEM; ASSAY; LAB; TECHNOLOGY; CYTOMETER; CAPTURE; SENSORS
AB An integrated system with automated immunomagnetic separation and processing of fluidic samples was demonstrated for multiplexed optical detection of bacterial targets. Mixtures of target-specific magnetic bead sets were processed in the NRL MagTrap with the aid of rotating magnet arrays that entrapped and moved the beads within the channel during reagent processing. Processing was performed in buffer and human serum matrixes with 10-fold dilutions in the range of 10(2)-10(6) cells/mL of target bacteria. Reversal of magnets' rotation post-processing released the beads back into the flow and moved them into the microflow cytometer for optical interrogation. Identification of the beads and the detection of PE fluorescence were performed simultaneously for multiplexed detection. Multiplexing was performed with specifically targeted bead sets to detect E. coli 0157.H7, Salmonella Common Structural Antigen, Listeria sp., and Shigella sp., dose response curves were obtained, and limits of detection were calculated for each target in the buffer and clinical matrix. Additional tests demonstrated the potential for using the MagTrap to concentrate target from larger volumes of sample prior to the addition of assay reagents.
C1 [Verbarg, Jasenka; Plath, William D.; Shriver-Lake, Lisa C.; Howell, Peter B., Jr.; Erickson, Jeffrey S.; Golden, Joel P.; Ligler, Frances S.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
RP Ligler, FS (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM frances.ligler@nrl.navy.mil
RI Erickson, Jeffrey/F-6273-2011
FU NIH [U01 A1075489]; ONR/NRL 6.2 work unit 6336
FX This work was supported by NIH Grant U01 A1075489 and ONR/NRL 6.2 work
unit 6336. J.V. is a National Research Council postdoctoral fellow. The
views presented are those of the authors and do not represent the
opinion or policy of the National Institutes of Health, Department of
Health and Human Service, the U.S. Navy, or the Department of Defense.
NR 33
TC 18
Z9 18
U1 14
U2 106
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0003-2700
EI 1520-6882
J9 ANAL CHEM
JI Anal. Chem.
PD MAY 21
PY 2013
VL 85
IS 10
BP 4944
EP 4950
DI 10.1021/ac303801v
PG 7
WC Chemistry, Analytical
SC Chemistry
GA 154DG
UT WOS:000319651100018
PM 23631439
ER
PT J
AU Gerke, TL
Little, BJ
Luxton, TP
Scheckel, KG
Maynard, JB
AF Gerke, Tammie L.
Little, Brenda J.
Luxton, Todd P.
Scheckel, Kirk G.
Maynard, J. Barry
TI Strontium Concentrations in Corrosion Products from Residential Drinking
Water Distribution Systems
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID RAY-ABSORPTION-SPECTROSCOPY; IRON PIPE CORROSION; CHLORAMINE DECAY;
AQUEOUS-SOLUTION; POTABLE WATER; BY-PRODUCTS; CALCITE; RELEASE;
COORDINATION; PARTICLES
AB The United States Environmental Protection Agency (US EPA) will require some U.S. drinking water distribution systems (DWDS) to monitor nonradioactive strontium (Sr2+) in drinking water in 2013. Iron corrosion products from four DWDS were examined to assess the potential for Sr2+ binding and release. Average Sr2+ concentrations in the outermost layer of the corrosion products ranged from 3 to 54 mg kg(-1) and the Sr2+ drinking water concentrations were all <= 0.3 mg L-1. Micro-X-ray adsorption near edge structure spectroscopy and linear combination fitting determined that Sr2+ was principally associated with CaCO3. Sr2+ was also detected as a surface complex associated with alpha-FeOOH. Iron particulates deposited on a filter inside a home had an average Sr2+ concentration of 40.3 mg kg(-1) and the associated drinking water at a tap Was 210 mu g L-1. The data suggest that elevated Sr2+ concentrations may be associated with iron corrosion products that, if disturbed, could increase Sr2+ concentrations above the 0.3 mu g L-1 US EPA reporting threshold. Disassociation of very small particulates could result in drinking water Sr2+ concentrations that exceed the US EPA health reference limit (4.20 mg kg(-1) body weight).
C1 [Gerke, Tammie L.; Maynard, J. Barry] Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA.
[Little, Brenda J.] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
[Luxton, Todd P.; Scheckel, Kirk G.] US EPA, ORD, NRMRL, LRPCD, Cincinnati, OH 45268 USA.
RP Gerke, TL (reprint author), Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA.
EM Tammie.Gerke@uc.edu
RI ID, MRCAT/G-7586-2011; Scheckel, Kirk/C-3082-2009
OI Scheckel, Kirk/0000-0001-9326-9241
FU U.S. Department of Energy, Basic Energy Sciences; NSERC; University of
Washington; Simon Fraser University; Advanced Photon Source; U.S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
[DE-AC02-06CH11357]
FX PNC/XOR facilities at the Advanced Photon Source, and research at these
facilities, are supported by the U.S. Department of Energy, Basic Energy
Sciences, a major facilities access grant from NSERC, the University of
Washington, Simon Fraser University, and the Advanced Photon Source. Use
of the Advanced Photon Source was also supported by the U.S. Department
of Energy, Office of Science, Office of Basic Energy Sciences, under
Contract DE-AC02-06CH11357. MRCAT operations were supported by the
Department of Energy and the MRCAT member institutions. This research
has not been subject to Agency review and, therefore, does not
necessarily reflect the views of the Agency. Mention of trade names of
commercial products and companies does not constitute endorsement or
recommendation for use. We thank M. R Schock for his advice on improving
the text, M. K. DeSantis for photographs of the iron corrosion products,
and Mathew Jones for some sample preparation.
NR 48
TC 8
Z9 8
U1 3
U2 34
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD MAY 21
PY 2013
VL 47
IS 10
BP 5171
EP 5177
DI 10.1021/es4000609
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 154WY
UT WOS:000319708600026
PM 23600992
ER
PT J
AU Sassin, MB
Chervin, CN
Rolison, DR
Long, JW
AF Sassin, Megan B.
Chervin, Christopher N.
Rolison, Debra R.
Long, Jeffrey W.
TI Redox Deposition of Nanoscale Metal Oxides on Carbon for Next-Generation
Electrochemical Capacitors
SO ACCOUNTS OF CHEMICAL RESEARCH
LA English
DT Review
ID HYDROUS RUTHENIUM OXIDE; SOL-GEL SYNTHESIS; MANGANESE OXIDE;
ENERGY-STORAGE; ELECTROLESS DEPOSITION; AQUEOUS-ELECTROLYTE;
POTASSIUM-PERMANGANATE; ACETYLENE BLACK; CHARGE STORAGE; DOUBLE-LAYER
AB Transition metal oxides that mix electronic and ionic conductivity are I essential active components of many electrochemical charge-storage devices, ranging from primary alkaline cells to more advanced rechargeable Li-ion batteries. In these devices, charge storage occurs via cation-insertion/deinsertion mechanisms in conjunction with the reduction/oxidation of metal sites in the oxide. Batteries that incorporate such metal oxides are typically designed for high specific energy, but not necessarily for high specific power. Electrochemical capacitors (ECs), which are typically composed of symmetric high-surface-area carbon electrodes that store charge via double-layer capacitance, deliver their energy in time scales of seconds, but at much lower specific energy than batteries. The fast, reversible faradaic reactions (typically described as "pseudocapacitance") of particular nanoscale metal oxides (e.g., ruthenium and manganese oxides) provide a strategy for bridging the power/energy performance gap between batteries and conventional ECs. These processes enhance charge-storage capacity to boost specific energy, while maintaining the few-second timescale of the charge-discharge response of carbon-based ECs.
In this Account, we describe three examples of redox-based deposition of EC-relevant metal oxides (MnO2, FeOx, and RuO2) and discuss their potential deployment in next-generation ECs that use aqueous electrolytes. To extract the maximum pseudocapacitance functionality of metal oxides, one must carefully consider how they are synthesized and subsequently integrated into practical electrode structures. Expressing the metal oxide in a nanoscale form often enhances electrochemical utilization (maximizing specific capacitance) and facilitates high-rate operation for both charge and discharge. The "wiring" of the metal oxide, in terms of both electron and ion transport, when fabricated into a practical electrode architecture, is also a critical design parameter for achieving characteristic EC charge-discharge timescales. For example, conductive carbon must often be combined with the poorly conductive metal oxides to provide long-range electron pathways through the electrode. However, the ad hoc mixing of discrete carbon and oxide powders into composite electrodes may not support optimal utilization or rate performance. As an alternative, nanoscale metal oxides of interest for ECs can be synthesized directly on the surfaces of nanostructured carbons, with the carbon surface acting as a sacrificial reductant when exposed to a solution-phase, oxidizing precursor of the desired metal oxide (e.g., MnO4- for MnO2). These redox deposition methods can be applied to advanced carbon nanoarchitectures with well-designed pore structures. These architectures promote effective electrolyte infiltration and ion transport to the nanoscale metal oxide domains within the electrode architecture, which further enhances high-rate operation.
C1 [Sassin, Megan B.; Chervin, Christopher N.; Rolison, Debra R.; Long, Jeffrey W.] USN, Res Lab, Surface Chem Branch Code 6170, Washington, DC 20375 USA.
RP Long, JW (reprint author), USN, Res Lab, Surface Chem Branch Code 6170, Washington, DC 20375 USA.
EM jeffrey.long@nrl.navy.mil
FU U.S. Office of Naval Research
FX We acknowledge the financial support of the U.S. Office of Naval
Research.
NR 69
TC 78
Z9 80
U1 27
U2 351
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0001-4842
J9 ACCOUNTS CHEM RES
JI Accounts Chem. Res.
PD MAY 21
PY 2013
VL 46
IS 5
BP 1062
EP 1074
DI 10.1021/ar2002717
PG 13
WC Chemistry, Multidisciplinary
SC Chemistry
GA 154XA
UT WOS:000319708800003
PM 22380783
ER
PT J
AU Hahn, BP
Long, JW
Rolison, DR
AF Hahn, Benjamin P.
Long, Jeffrey W.
Rolison, Debra R.
TI Something from Nothing: Enhancing Electrochemical Charge Storage with
Cation Vacancies
SO ACCOUNTS OF CHEMICAL RESEARCH
LA English
DT Review
ID ELECTROLYTIC MANGANESE-DIOXIDE; LITHIUM-ION BATTERIES; VANADIUM-OXIDE
AEROGELS; CO SPINEL OXIDES; V2O5 AEROGEL; IRON-OXIDE; INSERTION
ELECTRODE; CATHODE MATERIALS; ENERGY-STORAGE; DEFICIENT MN
AB The performance of electrochemical energy storage devices (e.g., batteries and electrochemical capacitors) is largely determined by the physicochemical properties of the active electrode materials, such as the thermodynamic potential associated with the charge-storage reaction, ion-storage capacity, and long-term electrochemical stability. In the case of mixed ion/electron-conducting metal oxides that undergo cation-insertion reactions, the presence of cation vacancies in the lattice structure can enhance one or more of these technical parameters without resorting to a drastic change in material composition. Examples of this enhancement include the charge-storage properties of certain cation-deficient oxides such as gamma-MnO2 and gamma-Fe2O3 relative to their defect-free analogues. The optimal cation-vacancy fraction is both material- and application-dependent because cation vacancies enhance some materials properties at the expense of others, potentially affecting electronic conductivity or thermal stability. Although the advantages of structural cation vacancies have been known since at least the mid-1980s, only a handful of research groups have purposefully integrated cation vacancies into active electrode materials to enhance device performance.
Three protocols are available for the incorporation of cation vacancies into transition metal oxides to improve performance in both aqueous and nonaqueous energy storage. Through a processing approach, researchers induce point defects in conventional oxides using traditional solid-state-ionics techniques that treat the oxide under appropriate atmospheric conditions with a driving force such as temperature. In a synthetic approach, substitutional doping of a highly oxidized cation into a metal-oxide framework can significantly increase cation-vacancy content and corresponding charge-storage capacity. In a scaling approach, electrode materials that are expressed in morphologies with high surface areas, such as aerogels, contain more defects because the increased fraction of surface sites favors the formation of cation vacancies.
In this Account, we review studies of cation-deficient electrode materials from the literature and our laboratory, focusing on transition metal oxides and the impact cation vacancies have on electrochemical performance. We also discuss the challenges and limitations of these defective structures and their promise as battery materials.
C1 [Hahn, Benjamin P.; Long, Jeffrey W.; Rolison, Debra R.] USN, Res Lab, Surface Chem Branch Code 6170, Washington, DC 20375 USA.
RP Long, JW (reprint author), USN, Res Lab, Surface Chem Branch Code 6170, Washington, DC 20375 USA.
EM jeffrey.long@nrl.navy.mil; rolison@nrl.navy.mil
FU U.S. Office of Naval Research
FX We acknowledge the financial support of the U.S. Office of Naval
Research.
NR 70
TC 14
Z9 14
U1 14
U2 227
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 MAY 21
PY 2013
VL 46
IS 5
BP 1181
EP 1191
DI 10.1021/ar200238w
PG 11
WC Chemistry, Multidisciplinary
SC Chemistry
GA 154XA
UT WOS:000319708800014
PM 22642490
ER
PT J
AU Zigler, A
Eisenman, S
Botton, M
Nahum, E
Schleifer, E
Baspaly, A
Pomerantz, I
Abicht, F
Branzel, J
Priebe, G
Steinke, S
Andreev, A
Schnuerer, M
Sandner, W
Gordon, D
Sprangle, P
Ledingham, KWD
AF Zigler, A.
Eisenman, S.
Botton, M.
Nahum, E.
Schleifer, E.
Baspaly, A.
Pomerantz, I.
Abicht, F.
Branzel, J.
Priebe, G.
Steinke, S.
Andreev, A.
Schnuerer, M.
Sandner, W.
Gordon, D.
Sprangle, P.
Ledingham, K. W. D.
TI Enhanced Proton Acceleration by an Ultrashort Laser Interaction with
Structured Dynamic Plasma Targets
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID SOLID INTERACTIONS; ION-BEAMS; DRIVEN; GENERATION; ELECTRON; PULSES
AB We experimentally demonstrate a notably enhanced acceleration of protons to high energy by relatively modest ultrashort laser pulses and structured dynamical plasma targets. Realized by special deposition of snow targets on sapphire substrates and using carefully planned prepulses, high proton yields emitted in a narrow solid angle with energy above 21 MeV were detected from a 5 TW laser. Our simulations predict that using the proposed scheme protons can be accelerated to energies above 150 MeV by 100 TW laser systems.
C1 [Zigler, A.; Eisenman, S.; Botton, M.; Nahum, E.; Schleifer, E.; Baspaly, A.; Pomerantz, I.] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel.
[Abicht, F.; Branzel, J.; Priebe, G.; Steinke, S.; Andreev, A.; Schnuerer, M.; Sandner, W.] Max Born Inst, D-12489 Berlin, Germany.
[Gordon, D.; Sprangle, P.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Ledingham, K. W. D.] Univ Strathclyde, Glasgow G4 0NG, Lanark, Scotland.
RP Botton, M (reprint author), Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel.
EM bdmoti@phys.huji.ac.il
RI Priebe, Gerd/C-6330-2008; Steinke, Sven/D-8086-2011
OI Priebe, Gerd/0000-0002-9880-8715; Steinke, Sven/0000-0003-0507-698X
NR 39
TC 32
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U1 0
U2 57
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAY 21
PY 2013
VL 110
IS 21
AR 215004
DI 10.1103/PhysRevLett.110.215004
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 148VX
UT WOS:000319277300023
PM 23745890
ER
PT J
AU Cranch, GA
Lane, JE
Miller, GA
Lou, JW
AF Cranch, G. A.
Lane, J. E.
Miller, G. A.
Lou, J. W.
TI Low frequency driven oscillations of cantilevers in viscous fluids at
very low Reynolds number
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID ATOMIC-FORCE MICROSCOPE; KEULEGAN-CARPENTER NUMBERS; FLOW-SENSORS;
LATERAL-LINE; CIRCULAR-CYLINDER; HYDROPHONE; VELOCITY
AB The motion of submerged cantilevers driven by viscous fluids is experimentally investigated and a previously published theoretical model is verified over a broad range of Reynolds number covering 4 x 10(-3) <= Re <= 2000 at frequencies up to 1 kHz. Both planar and cylindrical cantilevers are implemented using short length (few centimeters) fiber lasers, which are also used to measure the deflections. The driving forces are analyzed in detail illustrating how the dominant force transitions from a pressure related force to a viscous force depending on the Reynolds number of the fluid flow around the cantilever. Simplified, approximate expressions for the tip displacement of cantilevers oscillating in the highly viscous regime are also presented. These results will enable accurate, a priori, calculation of the motion of driven cantilevers over a range of dimensions, geometries, and fluid properties. (C) 2013 AIP Publishing LLC.
C1 [Cranch, G. A.; Lane, J. E.; Miller, G. A.] USN, Res Lab, Washington, DC 20375 USA.
[Lou, J. W.] SOTERA Def Solut Inc, Annapolis Jct, MD 20701 USA.
RP Cranch, GA (reprint author), USN, Res Lab, Code 5674,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM geoff.cranch@nrl.navy.mil
FU Naval Research Laboratory 6.2 program; Naval Research Enterprise
Internship Program (NREIP)
FX This work was funded by the Naval Research Laboratory 6.2 program. J. E.
Lane would like to acknowledge support from the Naval Research
Enterprise Internship Program (NREIP).
NR 36
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U1 4
U2 16
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 21
PY 2013
VL 113
IS 19
AR 194904
DI 10.1063/1.4805072
PG 10
WC Physics, Applied
SC Physics
GA 149CI
UT WOS:000319295200067
ER
PT J
AU Herschlag, G
Garcia, GJM
Button, B
Tarran, R
Lindley, B
Reinhardt, B
Elston, TC
Forest, MG
AF Herschlag, Gregory
Garcia, Guilherme J. M.
Button, Brian
Tarran, Robert
Lindley, Brandon
Reinhardt, Benjamin
Elston, Timothy C.
Forest, M. Gregory
TI A mechanochemical model for auto-regulation of lung airway surface layer
volume
SO JOURNAL OF THEORETICAL BIOLOGY
LA English
DT Article
DE Volume regulation; Mechanochemical mathematical model; Cilia; Mucus;
Viscoelasticity
ID PHASIC SHEAR-STRESS; CYSTIC-FIBROSIS; LIQUID VOLUME; MUCUS CLEARANCE;
ATP RELEASE; EPITHELIAL-CELLS; ION COMPOSITION; SODIUM-CHANNEL;
TRANSPORT; HOMEOSTASIS
AB We develop a proof-of-principle model for auto-regulation of water volume in the lung airway surface layer (ASL) by coupling biochemical kinetics, transient ASL volume, and homeostatic mechanical stresses. The model is based on the hypothesis that ASL volume is sensed through soluble mediators and phasic stresses generated by beating cilia and air drag forces. Model parameters are fit based on the available data on human bronchial epithelial cell cultures. Simulations then demonstrate that homeostatic volume regulation is a natural consequence of the processes described. The model maintains ASL volume within a physiological range that modulates with phasic stress frequency and amplitude. Next, we show that the model successfully reproduces the responses of cell cultures to significant isotonic and hypotonic challenges, and to hypertonic saline, an effective therapy for mucus hydration in cystic fibrosis patients. These results compel an advanced airway hydration model with therapeutic value that will necessitate detailed kinetics of multiple molecular pathways, feedback to ASL viscoelasticity properties, and stress signaling from the ASL to the cilia and epithelial cells. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Herschlag, Gregory; Forest, M. Gregory] Univ N Carolina, Dept Math, Chapel Hill, NC 27515 USA.
[Garcia, Guilherme J. M.] Univ Fed Sao Joao del Rei, Dept Fis & Matemat, Ouro Branco, MG, Brazil.
[Button, Brian; Tarran, Robert] Univ N Carolina, Cyst Fibrosis Pulm Res & Treatment Ctr, Chapel Hill, NC USA.
[Lindley, Brandon] USN, Res Lab, Washington, DC 20375 USA.
[Reinhardt, Benjamin] Cornell Univ, Ithaca, NY USA.
[Elston, Timothy C.] Univ N Carolina, Dept Pharmacol, Chapel Hill, NC USA.
RP Herschlag, G (reprint author), Univ N Carolina, Dept Math, Chapel Hill, NC 27515 USA.
EM gregoryh@unc.edu
RI Garcia, Guilherme/J-9555-2013
FU National Science Foundation [DMS-0943851, 0908423, 1100281,
DMR-1122483,]; National Institutes of Health [R01 HL077546-0105,
5-RC1-ES018686-01-02, HL108927]; Brazilian science agency CNPq
FX This research effort was supported in part by the National Science
Foundation Grants DMS-0943851, 0908423, 1100281, DMR-1122483, and the
National Institutes of Health Grants R01 HL077546-0105,
5-RC1-ES018686-01-02, and HL108927. The research of Garcia was supported
by the Brazilian science agency CNPq. We thank David Hill for fruitful
discussions, and all participants in the Virtual Lung Project whose
interactions have strongly influenced this work.
NR 40
TC 3
Z9 3
U1 0
U2 18
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-5193
J9 J THEOR BIOL
JI J. Theor. Biol.
PD MAY 21
PY 2013
VL 325
BP 42
EP 51
DI 10.1016/j.jtbi.2013.01.023
PG 10
WC Biology; Mathematical & Computational Biology
SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational
Biology
GA 125NR
UT WOS:000317547000005
PM 23415939
ER
PT J
AU Fontana, J
Livenere, J
Bezares, FJ
Caldwell, JD
Rendell, R
Ratna, BR
AF Fontana, Jake
Livenere, John
Bezares, Francisco J.
Caldwell, Joshua D.
Rendell, Ronald
Ratna, Banahalli R.
TI Large surface-enhanced Raman scattering from self-assembled gold
nanosphere monolayers
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID LARGE-AREA; NANOPARTICLE ARRAYS; COLLOID MONOLAYERS; THIN-FILMS;
SPECTROSCOPY; SERS; THIOPHENOL; ADSORPTION; MOLECULES; CHEMISTRY
AB We demonstrate an average surface-enhanced Raman scattering enhancement on the order of 10 8 from benzenethiol molecules using self-assembled, macroscopic, and tunable gold nanosphere monolayers on non-templated substrates. The self-assembly of the nanosphere monolayers uses a simple and efficient technique that allows for the creation of a high-density, chemically functionalized gold nanosphere monolayers with enhancement factors comparable to those produced using top-down fabrication techniques. These films may provide an approach for the future development of portable chemical/biological sensors.
C1 [Fontana, Jake; Livenere, John; Bezares, Francisco J.; Caldwell, Joshua D.; Rendell, Ronald; Ratna, Banahalli R.] Naval Res Lab, Washington, DC 20375 USA.
RP Fontana, J (reprint author), Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM jake.fontana.ctr@nrl.navy.mil
RI Caldwell, Joshua/B-3253-2008
OI Caldwell, Joshua/0000-0003-0374-2168
FU Office of Naval Research; National Research Council; American Society
for Engineering Education
FX This work was supported with funding provided from the Office of Naval
Research. J. Fontana acknowledges the National Research Council for a
postdoctoral fellowship and is a NRC-NRL postdoctoral resident at the
Naval Research Laboratory. F. Bezares acknowledges the American Society
for Engineering Education for a postdoctoral fellowship and is an
ASEE-NRL postdoctoral resident at the Naval Research Laboratory. J.
Livenere was a summer student during the summer of 2012 under the Naval
Research Enterprise Internship Program (NREIP) at the Naval Research
Laboratory and is a graduate student at Norfolk State University in
Norfolk, VA. J. Fontana and B. Ratna are affiliated with the Center for
Biomolecular Science and Engineering and J. Caldwell, F. Bezares, and R.
Rendell (recently retired) with the Electronics Science and Technology
division at the Naval Research Laboratory.
NR 30
TC 18
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U1 2
U2 90
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAY 20
PY 2013
VL 102
IS 20
AR 201606
DI 10.1063/1.4807659
PG 5
WC Physics, Applied
SC Physics
GA 167GK
UT WOS:000320619300027
ER
PT J
AU Naify, CJ
Layman, CN
Martin, TP
Nicholas, M
Calvo, DC
Orris, GJ
AF Naify, Christina J.
Layman, Christopher N.
Martin, Theodore P.
Nicholas, Michael
Calvo, David C.
Orris, Gregory J.
TI Experimental realization of a variable index transmission line
metamaterial as an acoustic leaky-wave antenna
SO APPLIED PHYSICS LETTERS
LA English
DT Article
AB Development and experimental realization of an acoustic leaky wave antenna are presented. The antenna uses a one-dimensional composite right/left hand transmission line approach to tune radiation angle continually from backfire-to-endfire, including broadside, as a function of input frequency. An array of acoustically loaded membranes and open channels form a structure with negative, zero, or positive refractive index, depending on excitation frequency. The fast-wave radiation band of the antenna is determined using acoustic circuit analysis. Based on the designs specified by circuit and finite element analysis, an acoustic leaky wave antenna was fabricated, and the radiation direction measured at discrete frequencies. (C) 2013 AIP Publishing LLC.
C1 [Naify, Christina J.; Layman, Christopher N.] CNR, Washington, DC 20001 USA.
[Martin, Theodore P.; Nicholas, Michael; Calvo, David C.; Orris, Gregory J.] US Naval Res Lab, Washington, DC 20375 USA.
RP Naify, CJ (reprint author), CNR, Washington, DC 20001 USA.
EM christina.naify.ctr@nrl.navy.mil
RI Martin, Theodore/H-1287-2016
FU Office of Naval Research
FX Work was supported by the Office of Naval Research.
NR 22
TC 8
Z9 8
U1 2
U2 44
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAY 20
PY 2013
VL 102
IS 20
AR 203508
DI 10.1063/1.4807280
PG 4
WC Physics, Applied
SC Physics
GA 167GK
UT WOS:000320619300094
ER
PT J
AU Liu, WW
Bracker, AS
Gammon, D
Doty, MF
AF Liu, Weiwen
Bracker, Allan S.
Gammon, Daniel
Doty, Matthew F.
TI Dynamic hole trapping in InAs/AlGaAs/InAs quantum dot molecules
SO PHYSICAL REVIEW B
LA English
DT Article
ID FINE-STRUCTURE; GAAS
AB Charges and spins confined in quantum dots and quantum dot molecules are of great interest for new optoelectronic device applications. The strong confinement in quantum dot structures leads to unique interactions among electrons and holes. A detailed understanding of the magnitude and dynamics of these charge-carrier interactions will be essential to the development of future devices. We present experimental evidence of holes trapped in metastable higher-energy states of InAs/AlGaAs/InAs quantum dot molecules. We present a model for the kinetic pathways that lead to this dynamic hole trapping and analyze the consequences of dynamic hole trapping for carrier relaxation and optical emission.
C1 [Liu, Weiwen; Doty, Matthew F.] Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA.
[Bracker, Allan S.; Gammon, Daniel] Naval Res Lab, Washington, DC 20375 USA.
RP Doty, MF (reprint author), Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA.
EM doty@udel.edu
OI Doty, Matthew/0000-0001-7999-3567
FU National Science Foundation [ECCS-1101754]
FX We gratefully acknowledge support from the National Science Foundation
(Grant No. ECCS-1101754).
NR 21
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U1 1
U2 17
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD MAY 20
PY 2013
VL 87
IS 19
AR 195308
DI 10.1103/PhysRevB.87.195308
PG 7
WC Physics, Condensed Matter
SC Physics
GA 148NR
UT WOS:000319252200004
ER
PT J
AU Lin, II
Black, P
Price, JF
Yang, CY
Chen, SS
Lien, CC
Harr, P
Chi, NH
Wu, CC
D'Asaro, EA
AF Lin, I. -I.
Black, P.
Price, J. F.
Yang, C. -Y.
Chen, S. S.
Lien, C. -C.
Harr, P.
Chi, N. -H.
Wu, C. -C.
D'Asaro, E. A.
TI An ocean coupling potential intensity index for tropical cyclones
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID HURRICANE INTENSITY; THERMAL STRUCTURE; TEMPERATURE; PREDICTION;
DYNAMICS; MODEL
AB Timely and accurate forecasts of tropical cyclones (TCs, i.e., hurricanes and typhoons) are of great importance for risk mitigation. Although in the past two decades there has been steady improvement in track prediction, improvement on intensity prediction is still highly challenging. Cooling of the upper ocean by TC-induced mixing is an important process that impacts TC intensity. Based on detail in situ air-deployed ocean and atmospheric measurement pairs collected during the Impact of Typhoons on the Ocean in the Pacific (ITOP) field campaign, we modify the widely used Sea Surface Temperature Potential Intensity (SST_PI) index by including information from the subsurface ocean temperature profile to form a new Ocean coupling Potential Intensity (OC_PI) index. Using OC_PI as a TC maximum intensity predictor and applied to a 14 year (1998-2011) western North Pacific TC archive, OC_PI reduces SST_PI-based overestimation of archived maximum intensity by more than 50% and increases the correlation of maximum intensity estimation from r(2) = 0.08 to 0.31. For slow-moving TCs that cause the greatest cooling, r(2) increases to 0.56 and the root-mean square error in maximum intensity is 11m s(-1). As OC_PI can more realistically characterize the ocean contribution to TC intensity, it thus serves as an effective new index to improve estimation and prediction of TC maximum intensity.
C1 [Lin, I. -I.; Yang, C. -Y.; Lien, C. -C.; Wu, C. -C.] Natl Taiwan Univ, Dept Atmospher Sci, Taipei 106, Taiwan.
[Lin, I. -I.; Lien, C. -C.] Acad Sinica, Res Ctr Environm Changes, Taipei 115, Taiwan.
[Black, P.] Sci Applicat Int Corp Inc, Monterey, CA USA.
[Black, P.] USN, Res Lab, Monterey, CA USA.
[Price, J. F.] Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA.
[Chen, S. S.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL 33149 USA.
[Harr, P.] USN, Postgrad Sch, Monterey, CA USA.
[Chi, N. -H.; D'Asaro, E. A.] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA.
RP Lin, II (reprint author), Natl Taiwan Univ, Dept Atmospher Sci, 1,Sec 4,Roosevelt Rd, Taipei 106, Taiwan.
EM iilin@as.ntu.edu.tw
RI Lin, I-I/J-4695-2013; Lien, Chun-Chi/D-1472-2010;
OI Lin, I-I/0000-0002-8364-8106; Lien, Chun-Chi/0000-0002-7973-3658; Wu,
Chun-Chieh/0000-0002-3612-4537
FU Taiwan's National Science Council; National Taiwan University [NSC
101-2111-M-002-002-MY2, NSC 101-2628-M-002-001-MY4, 102R7803]; US Office
of Naval Research (ONR); ONR through NRL [PE 0601153N, N00173-10-C-6019]
FX This work is supported by Taiwan's National Science Council and National
Taiwan University (grant numbers: NSC 101-2111-M-002-002-MY2; NSC
101-2628-M-002-001-MY4; 102R7803) and US Office of Naval Research (ONR)
under the Impact of Typhoons on Pacific (ITOP) program. Many thanks to
Kerry Emanuel for providing the SST_PI program, to David Tang for
leading the Taiwan ITOP component, to NASA, AVISO, Argo, RSS for
essential data sets, to the U.S. Air Force for executing the airborne
data collection, and to the Reviewers for very helpful and constructive
comments. PB's support is provided by ONR under PE 0601153N through NRL
Contract N00173-10-C-6019.
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U2 23
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD MAY 16
PY 2013
VL 40
IS 9
BP 1878
EP 1882
DI 10.1002/grl.50091
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 163EC
UT WOS:000320317500038
ER
PT J
AU Zhao, YJ
Liu, L
Sun, W
Lu, JF
McEachern, D
Li, XQ
Yu, SH
Bernard, D
Ochsenbein, P
Ferey, V
Carry, JC
Deschamps, JR
Sun, DX
Wang, SM
AF Zhao, Yujun
Liu, Liu
Sun, Wei
Lu, Jianfeng
McEachern, Donna
Li, Xiaoqin
Yu, Shanghai
Bernard, Denzil
Ochsenbein, Philippe
Ferey, Vincent
Carry, Jean-Christophe
Deschamps, Jeffrey R.
Sun, Duxin
Wang, Shaomeng
TI Diastereomeric Spirooxindoles as Highly Potent and Efficacious MDM2
Inhibitors
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID STRUCTURE-BASED DESIGN; OXINDOLE ALKALOIDS; NATURAL-PRODUCTS; P53;
ANTAGONISTS; ACTIVATION; DISCOVERY
AB Small-molecule inhibitors that block the MDM2-p53 protein protein interaction (MDM2 inhibitors) are being intensely pursued as a new therapeutic strategy for cancer treatment. We previously published a series of spirooxindole-containing compounds as a new class of MDM2 small-molecule inhibitors. We report herein a reversible ring-opening-cyclization reaction for some of these spirooxindoles, which affords four diastereomers from a single compound. Our biochemical binding data showed that the stereochemistry in this class of compounds has a major effect on their binding affinities to MDM2, with >100-fold difference between the most potent and the least potent stereoisomers. Our study has led to the identification of a set of highly potent MDM2 inhibitors with a stereochemistry that is different from that of our previously reported compounds. The most potent compound (MI-888) binds to MDM2 with a K-i value of 0.44 nM and achieves complete and long-lasting tumor regression in an animal model of human cancer.
C1 [Zhao, Yujun; Liu, Liu; Sun, Wei; Lu, Jianfeng; McEachern, Donna; Yu, Shanghai; Bernard, Denzil; Wang, Shaomeng] Univ Michigan, Ctr Comprehens Canc, Ann Arbor, MI 48109 USA.
[Zhao, Yujun; Liu, Liu; Sun, Wei; Lu, Jianfeng; McEachern, Donna; Yu, Shanghai; Bernard, Denzil; Wang, Shaomeng] Univ Michigan, Dept Internal Med, Ann Arbor, MI 48109 USA.
[Zhao, Yujun; Liu, Liu; Sun, Wei; Lu, Jianfeng; McEachern, Donna; Yu, Shanghai; Bernard, Denzil; Wang, Shaomeng] Univ Michigan, Dept Pharmacol, Ann Arbor, MI 48109 USA.
[Zhao, Yujun; Liu, Liu; Sun, Wei; Lu, Jianfeng; McEachern, Donna; Yu, Shanghai; Bernard, Denzil; Wang, Shaomeng] Univ Michigan, Dept Med Chem, Ann Arbor, MI 48109 USA.
[Li, Xiaoqin; Sun, Duxin] Univ Michigan, Life Sci Inst, Ann Arbor, MI 48109 USA.
[Ochsenbein, Philippe; Ferey, Vincent] Sanofi Res & Dev, Montpellier, France.
[Carry, Jean-Christophe] Sanofi Res & Dev, Vitry Sur Seine, France.
[Deschamps, Jeffrey R.] USN, Res Lab, Washington, DC 20375 USA.
RP Wang, SM (reprint author), Univ Michigan, Ctr Comprehens Canc, 1500 E Med Ctr Dr, Ann Arbor, MI 48109 USA.
EM shaomeng@umich.edu
RI ZHAO, YUJUN/F-6552-2013; SUN, Wei/M-1180-2015;
OI ZHAO, YUJUN/0000-0003-1035-2272; Deschamps, Jeffrey/0000-0001-5845-0010;
Bernard, Denzil/0000-0001-7529-3336
FU National Cancer Institute, National Institutes of Health [R01CA121279,
P50CA06956, P50CA097248]; University of Michigan Cancer Center
[P30CA046592]; Ascenta Therapeutics, Inc.; Sanofi S.A.; NIDA
[ADA12003-001]
FX We are grateful for financial support from the National Cancer
Institute, National Institutes of Health (Grants R01CA121279,
P50CA06956, and P50CA097248), the University of Michigan Cancer Center
(Core Grant P30CA046592), and Ascenta Therapeutics, Inc. and Sanofi S.A.
We also thank financial support for J.R.D. provided by NIDA under
interagency agreement number ADA12003-001.
NR 26
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PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD MAY 15
PY 2013
VL 135
IS 19
BP 7223
EP 7234
DI 10.1021/ja3125417
PG 12
WC Chemistry, Multidisciplinary
SC Chemistry
GA 148NB
UT WOS:000319250200025
PM 23641733
ER
PT J
AU Wells, TS
Horton, JL
LeardMann, CA
Jacobson, IG
Boyko, EJ
AF Wells, Timothy S.
Horton, Jaime L.
LeardMann, Cynthia A.
Jacobson, Isabel G.
Boyko, Edward J.
TI A comparison of the PRIME-MD PHQ-9 and PHQ-8 in a large military
prospective study, the Millennium Cohort Study
SO JOURNAL OF AFFECTIVE DISORDERS
LA English
DT Article
DE Depression; Epidemiology; Assessment/diagnosis;
Measurement/psychometrics; Mood disorders
ID POSTTRAUMATIC-STRESS-DISORDER; PRIMARY-CARE; SUICIDAL IDEATION; MAJOR
DEPRESSION; MENTAL-DISORDERS; HEALTH; VALIDITY; AFGHANISTAN; VALIDATION;
VETERANS
AB Background: In light of increased concerns about suicide in the military, institutional review boards have mandated increased scrutiny of the final item on the depression screening tool, the PHQ-9, which asks about suicidal thoughts. Since real-time monitoring of all individual responses in most observational studies is not feasible, many investigators have adopted the PHQ-8, choosing to remove the ninth item. This study compares the performance of the PHQ-8 with the PHQ-9 in a population-based sample of military or nonmilitary subjects.
Methods: The Millennium Cohort Study administers a self-reported questionnaire that includes the PHQ-9 at 3-year intervals to current and former U.S. military personnel. PHQ-9 responses of 143,705 Millennium Cohort members were investigated. Cross-sectional comparisons of the PHQ-9 and PHQ-8 and prospective analyses to detect a 5-unit change in these measures were performed.
Results: Greater than substantial agreement was found between the PHQ-8 and 9 instruments (kappas, 0.966-0.974 depending on survey cycle). There was similarly high agreement between the PHQ-8 and 9 in detecting a 5-point increase (kappa=0.987) or decrease (kappa=0.984) in score.
Limitations: One potential limitation of this study is that participants completed the PHQ-9, and PHQ-8 scores were extrapolated from the PHQ-9. In addition, the Millennium Cohort may not fully represent the U.S. military; though previous evaluations have shown the cohort to be a well-representative sample.
Conclusions: Since excellent agreement was detected between the PHQ-8 and PHQ-9 instruments, the PHQ-8 would capture nearly all the same cases of depression as the PHQ-9 in populations similar to the one in this study. (C) 2012 Elsevier By. All rights reserved.
C1 [Wells, Timothy S.; Horton, Jaime L.; LeardMann, Cynthia A.; Jacobson, Isabel G.] USN, Hlth Res Ctr, Deployment Hlth Res Dept, San Diego, CA 92152 USA.
[Boyko, Edward J.] Puget Sound Hlth Care Syst, Dept Vet Affairs, Seattle Epidemiol Res & Informat Ctr, Seattle, WA USA.
RP Horton, JL (reprint author), USN, Hlth Res Ctr, Deployment Hlth Res Dept, San Diego, CA 92152 USA.
EM jaime.horton@med.navy.mil
FU Military Operational Medicine Research Program of the U.S. Army Medical
Research and Materiel Command, Fort Detrick, Maryland; Henry M. Jackson
Foundation for the Advancement of Military Medicine, Rockville, Maryland
FX The Millennium Cohort Study is funded through the Military Operational
Medicine Research Program of the U.S. Army Medical Research and Materiel
Command, Fort Detrick, Maryland. Resources from the VA Puget Sound
Health Care System supported Dr. Boyko's involvement in this research.
The funding organizations had no role in the design and conduct of the
study; collection, analysis, or preparation of data; or preparation,
review or approval of the manuscript.; In addition to the authors, the
Millennium Cohort Study Team includes Melissa Bagnell, MPH; Nancy
Crum-Cianflone, MD, MPH; James Davies; Nisara Granado, MPH, PhD; Dennis
Hernando; Kelly Jones, MPH; Lauren Kipp, MPH; Michelle Linfesty; Gordon
Lynch; Hope McMaster, MA, PhD; Amanda Pietrucha, MPH; Teresa Powell, MS;
Amber Seelig, MPH; Besa Smith, MPH, PhD; Katherine Snell; Steven
Speigle; Kari Sausedo, MA; Beverly Sheppard; Martin White, MPH; James
Whitmer; and Charlene Wong, MPH; from the Deployment Health Research
Department, Naval Health Research Center, San Diego, California; Paul
Amoroso, from Multi Care Health System Research Institute, Tacoma,
Washington; Gary Gackstetter from Analytic Services, Inc., Arlington,
Virginia; Tomoko Hooper from the Uniformed Services University of the
Health Sciences, Bethesda, Maryland; Margaret A.K. Ryan, MD, MPH, from
Naval Hospital, Camp Pendleton, California; and Tyler C. Smith, MS, PhD,
from National University, San Diego, California. We thank Scott L
Seggerman from the Management Information Division, Defense Manpower
Data Center, Monterey, California, and Michelle LeWark, also from the
Naval Health Research Center. We also thank the professionals from the
U.S. Army Medical Research and Materiel Command, especially those from
the Military Operational Medicine Research Program, Fort Detrick,
Maryland. We appreciate the support of the Henry M. Jackson Foundation
for the Advancement of Military Medicine, Rockville, Maryland. We are
indebted to the Millennium Cohort Study participants, without whom these
analyses would not be possible.
NR 36
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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 0165-0327
J9 J AFFECT DISORDERS
JI J. Affect. Disord.
PD MAY 15
PY 2013
VL 148
IS 1
BP 77
EP 83
DI 10.1016/j.jad.2012.11.052
PG 7
WC Clinical Neurology; Psychiatry
SC Neurosciences & Neurology; Psychiatry
GA 139DY
UT WOS:000318563000011
PM 23246365
ER
PT J
AU Bermudez, VM
AF Bermudez, V. M.
TI First-principles study of the interaction of H2O with the GaSb (001)
surface
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID ENERGY-LOSS SPECTROSCOPY; PHOTOELECTRON-SPECTROSCOPY; GALLIUM
ANTIMONIDE; GASB(100)-(1 X-3); PHOTOEMISSION; GASB(001); OXIDATION;
HYDROGEN; GROWTH; GAAS
AB The adsorption of H2O on the GaSb (001) surface, both clean and with pre-adsorbed H atoms, has been studied computationally using dispersion-corrected density functional theory. The model employed is the alpha-(4 x 3) reconstruction consisting of Ga-Sb dimers adsorbed on the Sb-terminated surface, a disordered version of which is believed to constitute the frequently observed Sb-rich (1 x 3) surface. On the clean surface, molecular adsorption of H2O at a coordinatively unsaturated Ga site is exothermic (Delta E = -0.57 eV), but dissociation of this adsorbed H2O is significantly endothermic (Delta E= +0.45 eV or more). Dissociation can form either a (HO) Ga-Sb(H) site involving a Ga-Sb dimer or a (H) Ga-O(H)-Sb bridge. Other reactions are also energetically feasible, depending on the bond strength of different inequivalent Ga-Sb dimers. The two structures have essentially the same energy, and both can undergo an exothermic reaction with a second H2O. For the (HO) Ga-Sb(H) site, this reaction leads to the breaking of the dimer bond and the adsorption of molecular water, while the (H) Ga-O(H)-Sb bridge transforms to (HO) Ga-O(H)-Sb with the release of H-2. On the H-terminated surface, molecular adsorption of H2O can be suppressed and dissociative adsorption enhanced, which means that formation of an OH-terminated surface may be easier when starting with an H-terminated vs. a clean surface. The implications of these results for the growth of oxide/GaSb heterostructures via atomic layer deposition are discussed.
C1 USN, Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
RP Bermudez, VM (reprint author), USN, Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
EM victor.bermudez@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. Computer
facilities were provided by the Naval Research Laboratory and by the DOD
High-Performance Computing Modernization Program. K. Andersen and C.
Junkermeier are thanked for help with the installation and use of
Quantum Espresso.
NR 51
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U1 5
U2 37
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 14
PY 2013
VL 113
IS 18
AR 184906
DI 10.1063/1.4803704
PG 11
WC Physics, Applied
SC Physics
GA 149BX
UT WOS:000319294100101
ER
PT J
AU Kim, YC
Mittal, J
AF Kim, Young C.
Mittal, Jeetain
TI Crowding Induced Entropy-Enthalpy Compensation in Protein Association
Equilibria
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID TRANSIENT ENCOUNTER COMPLEXES; PHYSIOLOGICAL CONSEQUENCES; BINDING;
RATES; AGGREGATION; SIMULATIONS; DEPENDENCE; STABILITY; DYNAMICS;
KINETICS
AB A statistical mechanical theory is presented to predict the effects of macromolecular crowding on protein association equilibria, accounting for both excluded volume and attractive interactions between proteins and crowding molecules. Predicted binding free energies are in excellent agreement with simulation data over a wide range of crowder sizes and packing fractions. It is shown that attractive interactions between proteins and crowding agents counteract the stabilizing effects of excluded volume interactions. A critical attraction strength, for which there is no net effect of crowding, is approximately independent of the crowder packing fraction.
C1 [Kim, Young C.] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Mittal, Jeetain] Lehigh Univ, Dept Chem Engn, Bethlehem, PA 18015 USA.
RP Kim, YC (reprint author), USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
EM yckim@dave.nrl.navy.mil; jeetain@lehigh.edu
NR 39
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U1 0
U2 32
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAY 13
PY 2013
VL 110
IS 20
AR 208102
DI 10.1103/PhysRevLett.110.208102
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 146AX
UT WOS:000319062300029
PM 25167454
ER
PT J
AU Maksimchuk, A
Raymond, A
Yu, F
Petrov, GM
Dollar, F
Willingale, L
Zulick, C
Davis, J
Krushelnick, K
AF Maksimchuk, A.
Raymond, A.
Yu, F.
Petrov, G. M.
Dollar, F.
Willingale, L.
Zulick, C.
Davis, J.
Krushelnick, K.
TI Dominant deuteron acceleration with a high-intensity laser for isotope
production and neutron generation
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID SHORT-PULSE LASER; ION-ACCELERATION; PLASMA INTERACTIONS; PROTON
GENERATION; SOLIDS; IRRADIATION; TARGETS; BEAMS
AB Experiments on the interaction of an ultra-short pulse laser with heavy-water, ice-covered copper targets, at an intensity of 2 x 10(19) W/cm(2), were performed demonstrating the generation of a "pure" deuteron beam with a divergence of 20 degrees, maximum energy of 8 MeV, and a total of 3 x 10(11) deuterons with energy above 1 MeV-equivalent to a conversion efficiency of 1.5% +/- 0.2%. Subsequent experiments on irradiation of a B-10 sample with deuterons and neutron generation from d-d reactions in a pitcher-catcher geometry, resulted in the production of similar to 10(6) atoms of the positron emitter C-11 and a neutron flux of (4 +/- 1) x 10(5) neutrons/sterad, respectively. (C) 2013 AIP Publishing LLC.
C1 [Maksimchuk, A.; Raymond, A.; Yu, F.; Dollar, F.; Willingale, L.; Zulick, C.; Krushelnick, K.] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA.
[Petrov, G. M.; Davis, J.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Maksimchuk, A (reprint author), Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA.
EM tolya@umich.edu
RI Dollar, Franklin/C-9214-2013
OI Dollar, Franklin/0000-0003-3346-5763
FU Defense Threat Reduction Agency (DTRA); Office of Naval Research (ONR)
FX This study was supported by Defense Threat Reduction Agency (DTRA) and
the Office of Naval Research (ONR). The authors would like to thank the
University of Michigan Neutron Science Laboratory for use of the D-D
generator for detectors calibration.
NR 32
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U1 2
U2 22
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAY 13
PY 2013
VL 102
IS 19
AR 191117
DI 10.1063/1.4807143
PG 5
WC Physics, Applied
SC Physics
GA 164WB
UT WOS:000320440800017
ER
PT J
AU Adamczyk, L
Agakishiev, G
Aggarwal, MM
Ahammed, Z
Alakhverdyants, AV
Alekseev, I
Alford, J
Anson, CD
Arkhipkin, D
Aschenauer, E
Averichev, GS
Balewski, J
Banerjee, A
Barnovska, Z
Beavis, DR
Bellwied, R
Betancourt, MJ
Betts, RR
Bhasin, A
Bhati, AK
Bichsel, H
Bielcik, J
Bielcikova, J
Bland, LC
Bordyuzhin, IG
Borowski, W
Bouchet, J
Brandin, AV
Brovko, SG
Bruna, E
Bultmann, S
Bunzarov, I
Burton, TP
Butterworth, J
Cai, XZ
Caines, H
Sanchez, MCD
Cebra, D
Cendejas, R
Cervantes, MC
Chaloupka, P
Chang, Z
Chattopadhdyay, S
Chen, HF
Chen, JH
Chen, JY
Chen, L
Cheng, J
Cherney, M
Chikanian, A
Christie, W
Chung, P
Chwastowski, J
Codrington, MJM
Corliss, R
Cramer, JG
Crawford, HJ
Cui, X
Das, S
Leyva, AD
De Silva, LC
Debbe, RR
Dedovich, TG
Deng, J
de Souza, RD
Dhamija, S
Didenko, L
Ding, F
Dion, A
Djawotho, P
Dong, X
Drachenberg, JL
Draper, JE
Du, CM
Dunkelberger, LE
Dunlop, JC
Efimov, LG
Elnimr, M
Engelage, J
Eppley, G
Eun, L
Evdokimov, O
Fatemi, R
Fazio, S
Fedorisin, J
Fersch, RG
Filip, P
Finch, E
Fisyak, Y
Gagliardi, CA
Gangadharan, DR
Geurts, F
Gibson, A
Gliske, S
Gorbunov, YN
Grebenyuk, OG
Grosnick, D
Gupta, S
Guryn, W
Haag, B
Hajkova, O
Hamed, A
Han, LX
Harris, JW
Hays-Wehle, JP
Heppelmann, S
Hirsch, A
Hoffmann, GW
Hofman, DJ
Horvat, S
Huang, B
Huang, HZ
Huck, P
Humanic, TJ
Huo, L
Igo, G
Jacobs, WW
Jena, C
Judd, EG
Kabana, S
Kang, K
Kapitan, J
Kauder, K
Ke, HW
Keane, D
Kechechyan, A
Kesich, A
Kikola, DP
Kiryluk, J
Kisel, I
Kisiel, A
Kizka, V
Klein, SR
Koetke, DD
Kollegger, T
Konzer, J
Koralt, I
Koroleva, L
Korsch, W
Kotchenda, L
Kravtsov, P
Krueger, K
Kulakov, I
Kumar, L
Lamont, MAC
Landgraf, JM
LaPointe, S
Lauret, J
Lebedev, A
Lednicky, R
Lee, JH
Leight, W
LeVine, MJ
Li, C
Li, L
Li, W
Li, X
Li, X
Li, Y
Li, ZM
Lima, LM
Lisa, MA
Liu, F
Ljubicic, T
Llope, WJ
Longacre, RS
Lu, Y
Luo, X
Luszczak, A
Ma, GL
Ma, YG
Don, DMMDM
Mahapatra, DP
Majka, R
Mall, OI
Margetis, S
Markert, C
Masui, H
Matis, HS
McDonald, D
McShane, TS
Mioduszewski, S
Mitrovski, MK
Mohammed, Y
Mohanty, B
Mondal, MM
Morozov, B
Munhoz, MG
Mustafa, MK
Naglis, M
Nandi, BK
Nasim, M
Nayak, TK
Nelson, JM
Nogach, LV
Novak, J
Odyniec, G
Ogawa, A
Oh, K
Ohlson, A
Okorokov, V
Oldag, EW
Oliveira, RAN
Olson, D
Ostrowski, P
Pachr, M
Page, BS
Pal, SK
Pan, YX
Pandit, Y
Panebratsev, Y
Pawlak, T
Pawlik, B
Pei, H
Perkins, C
Peryt, W
Pile, P
Planinic, M
Pluta, J
Plyku, D
Poljak, N
Porter, J
Poskanzer, AM
Powell, CB
Pruneau, C
Pruthi, NK
Przybycien, M
Pujahari, PR
Putschke, J
Qiu, H
Raniwala, R
Raniwala, S
Ray, RL
Redwine, R
Reed, R
Riley, CK
Ritter, HG
Roberts, JB
Rogachevskiy, OV
Romero, JL
Ross, JF
Ruan, L
Rusnak, J
Sahoo, NR
Sahu, PK
Sakrejda, I
Salur, S
Sandacz, A
Sandweiss, J
Sangaline, E
Sarkar, A
Schambach, J
Scharenberg, RP
Schmah, AM
Schmidke, B
Schmitz, N
Schuster, TR
Seele, J
Seger, J
Seyboth, P
Shah, N
Shahaliev, E
Shao, M
Sharma, B
Sharma, M
Shi, SS
Shou, QY
Sichtermann, EP
Singaraju, RN
Skoby, MJ
Smirnov, D
Smirnov, N
Solanki, D
Sorensen, P
deSouza, UG
Spinka, HM
Srivastava, B
Stanislaus, TDS
Steadman, SG
Stevens, JR
Stock, R
Strikhanov, M
Stringfellow, B
Suaide, AAP
Suarez, MC
Sumbera, M
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Svirida, DN
Symons, TJM
de Toledo, AS
Takahashi, J
Tang, AH
Tang, Z
Tarini, LH
Tarnowsky, T
Thein, D
Thomas, JH
Tian, J
Timmins, AR
Tlusty, D
Tokarev, M
Trentalange, S
Tribble, RE
Tribedy, P
Trzeciak, BA
Tsai, OD
Turnau, J
Ullrich, T
Underwood, DG
Van Buren, G
van Nieuwenhuizen, G
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Videbaek, F
Viyogi, YP
Vokal, S
Voloshin, SA
Vossen, A
Wada, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, Q
Wang, XL
Wang, Y
Webb, G
Webb, JC
Westfall, GD
Whitten, C
Wieman, H
Wissink, SW
Witt, R
Witzke, W
Wu, YF
Xiao, Z
Xie, W
Xin, K
Xu, H
Xu, N
Xu, QH
Xu, W
Xu, Y
Xu, Z
Xue, L
Yang, Y
Yang, Y
Yepes, P
Yi, Y
Yip, K
Yoo, IK
Zawisza, M
Zbroszczyk, H
Zhang, JB
Zhang, S
Zhang, XP
Zhang, Y
Zhang, ZP
Zhao, F
Zhao, J
Zhong, C
Zhu, X
Zhu, YH
Zoulkarneeva, Y
Zyzak, M
AF Adamczyk, L.
Agakishiev, G.
Aggarwal, M. M.
Ahammed, Z.
Alakhverdyants, A. V.
Alekseev, I.
Alford, J.
Anson, C. D.
Arkhipkin, D.
Aschenauer, E.
Averichev, G. S.
Balewski, J.
Banerjee, A.
Barnovska, Z.
Beavis, D. R.
Bellwied, R.
Betancourt, M. J.
Betts, R. R.
Bhasin, A.
Bhati, A. K.
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Bland, L. C.
Bordyuzhin, I. G.
Borowski, W.
Bouchet, J.
Brandin, A. V.
Brovko, S. G.
Bruna, E.
Bueltmann, S.
Bunzarov, I.
Burton, T. P.
Butterworth, J.
Cai, X. Z.
Caines, H.
Sanchez, M. Calderon de la Barca
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chaloupka, P.
Chang, Z.
Chattopadhdyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Chen, L.
Cheng, J.
Cherney, M.
Chikanian, A.
Christie, W.
Chung, P.
Chwastowski, J.
Codrington, M. J. M.
Corliss, R.
Cramer, J. G.
Crawford, H. J.
Cui, X.
Das, S.
Leyva, A. Davila
De Silva, L. C.
Debbe, R. R.
Dedovich, T. G.
Deng, J.
Derradi de Souza, R.
Dhamija, S.
Didenko, L.
Ding, F.
Dion, A.
Djawotho, P.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, C. M.
Dunkelberger, L. E.
Dunlop, J. C.
Efimov, L. G.
Elnimr, M.
Engelage, J.
Eppley, G.
Eun, L.
Evdokimov, O.
Fatemi, R.
Fazio, S.
Fedorisin, J.
Fersch, R. G.
Filip, P.
Finch, E.
Fisyak, Y.
Gagliardi, C. A.
Gangadharan, D. R.
Geurts, F.
Gibson, A.
Gliske, S.
Gorbunov, Y. N.
Grebenyuk, O. G.
Grosnick, D.
Gupta, S.
Guryn, W.
Haag, B.
Hajkova, O.
Hamed, A.
Han, L. -X.
Harris, J. W.
Hays-Wehle, J. P.
Heppelmann, S.
Hirsch, A.
Hoffmann, G. W.
Hofman, D. J.
Horvat, S.
Huang, B.
Huang, H. Z.
Huck, P.
Humanic, T. J.
Huo, L.
Igo, G.
Jacobs, W. W.
Jena, C.
Judd, E. G.
Kabana, S.
Kang, K.
Kapitan, J.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Kesich, A.
Kikola, D. P.
Kiryluk, J.
Kisel, I.
Kisiel, A.
Kizka, V.
Klein, S. R.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Koralt, I.
Koroleva, L.
Korsch, W.
Kotchenda, L.
Kravtsov, P.
Krueger, K.
Kulakov, I.
Kumar, L.
Lamont, M. A. C.
Landgraf, J. M.
LaPointe, S.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, J. H.
Leight, W.
LeVine, M. J.
Li, C.
Li, L.
Li, W.
Li, X.
Li, X.
Li, Y.
Li, Z. M.
Lima, L. M.
Lisa, M. A.
Liu, F.
Ljubicic, T.
Llope, W. J.
Longacre, R. S.
Lu, Y.
Luo, X.
Luszczak, A.
Ma, G. L.
Ma, Y. G.
Don, D. M. M. D. Madagodagettige
Mahapatra, D. P.
Majka, R.
Mall, O. I.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
McDonald, D.
McShane, T. S.
Mioduszewski, S.
Mitrovski, M. K.
Mohammed, Y.
Mohanty, B.
Mondal, M. M.
Morozov, B.
Munhoz, M. G.
Mustafa, M. K.
Naglis, M.
Nandi, B. K.
Nasim, Md
Nayak, T. K.
Nelson, J. M.
Nogach, L. V.
Novak, J.
Odyniec, G.
Ogawa, A.
Oh, K.
Ohlson, A.
Okorokov, V.
Oldag, E. W.
Oliveira, R. A. N.
Olson, D.
Ostrowski, P.
Pachr, M.
Page, B. S.
Pal, S. K.
Pan, Y. X.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Pawlik, B.
Pei, H.
Perkins, C.
Peryt, W.
Pile, P.
Planinic, M.
Pluta, J.
Plyku, D.
Poljak, N.
Porter, J.
Poskanzer, A. M.
Powell, C. B.
Pruneau, C.
Pruthi, N. K.
Przybycien, M.
Pujahari, P. R.
Putschke, J.
Qiu, H.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Redwine, R.
Reed, R.
Riley, C. K.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Ross, J. F.
Ruan, L.
Rusnak, J.
Sahoo, N. R.
Sahu, P. K.
Sakrejda, I.
Salur, S.
Sandacz, A.
Sandweiss, J.
Sangaline, E.
Sarkar, A.
Schambach, J.
Scharenberg, R. P.
Schmah, A. M.
Schmidke, B.
Schmitz, N.
Schuster, T. R.
Seele, J.
Seger, J.
Seyboth, P.
Shah, N.
Shahaliev, E.
Shao, M.
Sharma, B.
Sharma, M.
Shi, S. S.
Shou, Q. Y.
Sichtermann, E. P.
Singaraju, R. N.
Skoby, M. J.
Smirnov, D.
Smirnov, N.
Solanki, D.
Sorensen, P.
deSouza, U. G.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Steadman, S. G.
Stevens, J. R.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Suaide, A. A. P.
Suarez, M. C.
Sumbera, M.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Svirida, D. N.
Symons, T. J. M.
Szanto de Toledo, A.
Takahashi, J.
Tang, A. H.
Tang, Z.
Tarini, L. H.
Tarnowsky, T.
Thein, D.
Thomas, J. H.
Tian, J.
Timmins, A. R.
Tlusty, D.
Tokarev, M.
Trentalange, S.
Tribble, R. E.
Tribedy, P.
Trzeciak, B. A.
Tsai, O. D.
Turnau, J.
Ullrich, T.
Underwood, D. G.
Van Buren, G.
van Nieuwenhuizen, G.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Vossen, A.
Wada, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, Q.
Wang, X. L.
Wang, Y.
Webb, G.
Webb, J. C.
Westfall, G. D.
Whitten, C., Jr.
Wieman, H.
Wissink, S. W.
Witt, R.
Witzke, W.
Wu, Y. F.
Xiao, Z.
Xie, W.
Xin, K.
Xu, H.
Xu, N.
Xu, Q. H.
Xu, W.
Xu, Y.
Xu, Z.
Xue, L.
Yang, Y.
Yang, Y.
Yepes, P.
Yi, Y.
Yip, K.
Yoo, I. -K.
Zawisza, M.
Zbroszczyk, H.
Zhang, J. B.
Zhang, S.
Zhang, X. P.
Zhang, Y.
Zhang, Z. P.
Zhao, F.
Zhao, J.
Zhong, C.
Zhu, X.
Zhu, Y. H.
Zoulkarneeva, Y.
Zyzak, M.
CA STAR Collaboration
TI J/psi production at high transverse momenta in p plus p and Au plus Au
collisions at root s(NN)=200 GeV
SO PHYSICS LETTERS B
LA English
DT Article
DE J/psi suppression; Color-screening; Quarkonium; Heavy-ion collisions;
STAR
ID HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; D+AU COLLISIONS; STAR
EXPERIMENT; DISTRIBUTIONS; DETECTOR; PROTON; FLAVOR; P+P
AB We report J/psi spectra for transverse momenta P-T > 5 GeV/c at mid-rapidity in p + p and Au + Au collisions at root s(NN) = 200 GeV. The inclusive J/psi spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/psi yields for p(T) > 5 GeV/c in 0-30% central Au + Au collisions relative to the p + p yield scaled by the number of binary nucleon-nucleon collisions in Au + Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-p(T) pi(+/-) and low-p(T) J/psi at RHIC and high-p(T) J/psi at the LHC. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Adamczyk, L.; Przybycien, M.] AGH Univ Sci & Technol, Krakow, Poland.
[Gliske, S.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Nelson, J. M.] Univ Birmingham, Birmingham, W Midlands, England.
[Arkhipkin, D.; Aschenauer, E.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; Didenko, L.; Dion, A.; Dunlop, J. C.; Fazio, S.; Fisyak, Y.; Guryn, W.; Huang, B.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Mitrovski, M. K.; Ogawa, A.; Pile, P.; Ruan, L.; Schmidke, B.; Smirnov, D.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Wang, H.; Webb, J. C.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Crawford, H. J.; Engelage, J.; Judd, E. G.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
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[Derradi de Souza, R.; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil.
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[Chwastowski, J.; Luszczak, A.] Cracow Univ Technol, Krakow, Poland.
[Cherney, M.; Gorbunov, Y. N.; Don, D. M. M. D. Madagodagettige; McShane, T. S.; Ross, J. F.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Chaloupka, P.; Hajkova, O.; Pachr, M.] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic.
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[Kollegger, T.; Schuster, T. R.; Stock, R.] Goethe Univ Frankfurt, D-60054 Frankfurt, Germany.
[Das, S.; Mahapatra, D. P.; Sahu, P. K.] Inst Phys, Bhubaneswar 751005, Orissa, India.
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[Dhamija, S.; Jacobs, W. W.; Page, B. S.; Skoby, M. J.; Stevens, J. R.; Vossen, A.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA.
[Alekseev, I.; Bordyuzhin, I. G.; Koroleva, L.; Morozov, B.; Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow, Russia.
[Bhasin, A.; Gupta, S.] Univ Jammu, Jammu 180001, India.
[Agakishiev, G.; Alakhverdyants, A. V.; Averichev, G. S.; Bunzarov, I.; Dedovich, T. G.; Efimov, L. G.; Fedorisin, J.; Filip, P.; Kechechyan, A.; Kizka, V.; Lednicky, R.; Panebratsev, Y.; Rogachevskiy, O. V.; Shahaliev, E.; Tokarev, M.; Vokal, S.; Zoulkarneeva, Y.] Joint Inst Nucl Res, Dubna 141980, Russia.
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[Du, C. M.; Sun, Z.; Wang, J. S.; Xu, H.; Yang, Y.] Inst Modern Phys, Lanzhou, Peoples R China.
[Dong, X.; Eun, L.; Grebenyuk, O. G.; Kiryluk, J.; Kisel, I.; Klein, S. R.; Kulakov, I.; Masui, H.; Matis, H. S.; Naglis, M.; Odyniec, G.; Olson, D.; Porter, J.; Poskanzer, A. M.; Powell, C. B.; Qiu, H.; Ritter, H. G.; Sakrejda, I.; Salur, S.; Schmah, A. M.; Sichtermann, E. P.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Wieman, H.; Xu, N.; Zyzak, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
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[Schmitz, N.; Seyboth, P.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Novak, J.; Tarnowsky, T.; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA.
[Brandin, A. V.; Kotchenda, L.; Kravtsov, P.; Okorokov, V.; Strikhanov, M.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Jena, C.; Mohanty, B.] Natl Inst Sci & Educ & Res, Bhubaneswar 751005, Orissa, India.
[Anson, C. D.; Gangadharan, D. R.; Humanic, T. J.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA.
[Bueltmann, S.; Koralt, I.; Plyku, D.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Pawlik, B.; Turnau, J.] Inst Nucl Phys PAN, Krakow, Poland.
[Aggarwal, M. M.; Bhati, A. K.; Pruthi, N. K.; Sharma, B.] Panjab Univ, Chandigarh 160014, India.
[Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA.
[Nogach, L. V.] Inst High Energy Phys, Protvino, Russia.
[Hirsch, A.; Kikola, D. P.; Konzer, J.; Li, X.; Mustafa, M. K.; Scharenberg, R. P.; Srivastava, B.; Stringfellow, B.; Wang, F.; Wang, Q.; Xie, W.; Yi, Y.] Purdue Univ, W Lafayette, IN 47907 USA.
[Oh, K.; Yoo, I. -K.] Pusan Natl Univ, Pusan 609735, South Korea.
[Raniwala, R.; Raniwala, S.; Solanki, D.] Univ Rajasthan, Jaipur 302004, Rajasthan, India.
[Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W. J.; McDonald, D.; Roberts, J. B.; Xin, K.; Yepes, P.] Rice Univ, Houston, TX 77251 USA.
[Lima, L. M.; Munhoz, M. G.; Oliveira, R. A. N.; deSouza, U. G.; Suaide, A. A. P.; Szanto de Toledo, A.] Univ Sao Paulo, Sao Paulo, Brazil.
[Chen, H. F.; Cui, X.; Li, C.; Lu, Y.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Zhang, Y.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Deng, J.; Xu, Q. H.] Shandong Univ, Jinan 250100, Shandong, Peoples R China.
[Cai, X. Z.; Chen, J. H.; Han, L. -X.; Li, W.; Ma, G. L.; Ma, Y. G.; Shou, Q. Y.; Tian, J.; Xue, L.; Zhang, S.; Zhao, J.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Borowski, W.; Kabana, S.] SUBATECH, Nantes, France.
[Li, X.; Surrow, B.] Temple Univ, Philadelphia, PA 19122 USA.
[Cervantes, M. C.; Chang, Z.; Codrington, M. J. M.; Djawotho, P.; Drachenberg, J. L.; Gagliardi, C. A.; Hamed, A.; Huo, L.; Mioduszewski, S.; Mohammed, Y.; Mondal, M. M.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.
[Leyva, A. Davila; Hoffmann, G. W.; Li, L.; Markert, C.; Oldag, E. W.; Ray, R. L.; Schambach, J.; Thein, D.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA.
[Bellwied, R.; De Silva, L. C.; Timmins, A. R.] Univ Houston, Houston, TX 77204 USA.
[Cheng, J.; Kang, K.; Li, Y.; Wang, Y.; Xiao, Z.; Zhang, X. P.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China.
[Witt, R.] USN Acad, Annapolis, MD 21402 USA.
[Drachenberg, J. L.; Gibson, A.; Grosnick, D.; Koetke, D. D.; Stanislaus, T. D. S.] Valparaiso Univ, Valparaiso, IN 46383 USA.
[Ahammed, Z.; Banerjee, A.; Chattopadhdyay, S.; Nasim, Md; Nayak, T. K.; Pal, S. K.; Sahoo, N. R.; Singaraju, R. N.; Tribedy, P.] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India.
[Kisiel, A.; Ostrowski, P.; Pawlak, T.; Peryt, W.; Pluta, J.; Sandacz, A.; Trzeciak, B. A.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Bichsel, H.; Cramer, J. G.] Univ Washington, Seattle, WA 98195 USA.
[Elnimr, M.; LaPointe, S.; Pruneau, C.; Putschke, J.; Sharma, M.; Tarini, L. H.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.
[Bruna, E.; Caines, H.; Chikanian, A.; Finch, E.; Harris, J. W.; Horvat, S.; Majka, R.; Ohlson, A.; Riley, C. K.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA.
[Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia.
RP Tang, Z (reprint author), Univ Sci & Technol China, Hefei 230026, Peoples R China.
EM zbtang@ustc.edu.cn
RI Xu, Wenqin/H-7553-2014; XIAO, Zhigang/C-3788-2015; Aparecido Negrao de
Oliveira, Renato/G-9133-2015; Bruna, Elena/C-4939-2014; Chaloupka,
Petr/E-5965-2012; Huang, Bingchu/H-6343-2015; Derradi de Souza,
Rafael/M-4791-2013; Suaide, Alexandre/L-6239-2016; Xin,
Kefeng/O-9195-2016; Svirida, Dmitry/R-4909-2016; Inst. of Physics, Gleb
Wataghin/A-9780-2017; Ma, Yu-Gang/M-8122-2013; Voloshin,
Sergei/I-4122-2013; Pandit, Yadav/I-2170-2013; Lednicky,
Richard/K-4164-2013; Strikhanov, Mikhail/P-7393-2014; Takahashi,
Jun/B-2946-2012; Tang, Zebo/A-9939-2014; Fazio, Salvatore /G-5156-2010;
Yang, Yanyun/B-9485-2014; Dong, Xin/G-1799-2014; Rusnak,
Jan/G-8462-2014; Bielcikova, Jana/G-9342-2014; Alekseev,
Igor/J-8070-2014; Sumbera, Michal/O-7497-2014
OI Xu, Wenqin/0000-0002-5976-4991; Bruna, Elena/0000-0001-5427-1461; Huang,
Bingchu/0000-0002-3253-3210; Derradi de Souza,
Rafael/0000-0002-2084-7001; Suaide, Alexandre/0000-0003-2847-6556; Xin,
Kefeng/0000-0003-4853-9219; Ma, Yu-Gang/0000-0002-0233-9900; Pandit,
Yadav/0000-0003-2809-7943; Strikhanov, Mikhail/0000-0003-2586-0405;
Takahashi, Jun/0000-0002-4091-1779; Tang, Zebo/0000-0002-4247-0081;
Yang, Yanyun/0000-0002-5982-1706; Dong, Xin/0000-0001-9083-5906;
Alekseev, Igor/0000-0003-3358-9635; Sumbera, Michal/0000-0002-0639-7323
FU RHIC Operations Group and RCF at BNL; NERSC Center at LBNL; Open Science
Grid consortium; Offices of NP and HEP within the US DOE Office of
Science; US NSF; Sloan Foundation; DFG cluster of excellence 'Origin and
Structure of the Universe' of Germany; CNRS/IN2P3; FAPESP CNPq of
Brazil; Ministry of Ed. and Sci. of the Russian Federation; NNSFC; CAS;
MoST; MoE of China; GA; MSMT of the Czech Republic; FOM; NWO of the
Netherlands; DAE; DST; CSIR of India; Polish Ministry of Sci. and Higher
Ed.; Korea National Research Foundation; Ministry of Sci., Ed. and
Sports of the Rep. of Croatia; RosAtom of Russia
FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at
LBNL and the Open Science Grid consortium for providing resources and
support. This work was supported in part by the Offices of NP and HEP
within the US DOE Office of Science, the US NSF, the Sloan Foundation,
the DFG cluster of excellence 'Origin and Structure of the Universe' of
Germany, CNRS/IN2P3, FAPESP CNPq of Brazil, Ministry of Ed. and Sci. of
the Russian Federation, NNSFC, CAS, MoST, and MoE of China, GA and MSMT
of the Czech Republic, FOM and NWO of the Netherlands, DAE, DST, and
CSIR of India, Polish Ministry of Sci. and Higher Ed., Korea National
Research Foundation, Ministry of Sci., Ed. and Sports of the Rep. of
Croatia, and RosAtom of Russia.
NR 55
TC 43
Z9 43
U1 1
U2 56
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
EI 1873-2445
J9 PHYS LETT B
JI Phys. Lett. B
PD MAY 13
PY 2013
VL 722
IS 1-3
BP 55
EP 62
DI 10.1016/j.physletb.2013.04.010
PG 8
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 141RX
UT WOS:000318745300005
ER
PT J
AU Ellingson, SW
Clarke, TE
Craig, J
Hicks, BC
Lazio, TJW
Taylor, GB
Wilson, TL
Wolfe, CN
AF Ellingson, S. W.
Clarke, T. E.
Craig, J.
Hicks, B. C.
Lazio, T. J. W.
Taylor, G. B.
Wilson, T. L.
Wolfe, C. N.
TI OBSERVATIONS OF CRAB GIANT PULSES IN 20-84 MHz USING LWA1
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE ISM: individual objects (Crab Nebula); ISM: structure; pulsars: general;
pulsars: individual (Crab Pulsar); scattering
ID NEBULA PULSAR; RADIO SOURCES; SCATTERING; DISPERSION; VARIABILITY;
BURSTS; SYSTEM; ARRAY; CAS
AB We report the detection and observed characteristics of giant pulses from the Crab Nebula pulsar (B0531+21) in four frequency bands covering 20-84 MHz using the recently completed Long Wavelength Array Station 1 (LWA1) radio telescope. In 10 hr of observations distributed over a 72 day period in fall of 2012, 33 giant pulses having peak flux densities between 400 Jy and 2000 Jy were detected. Twenty-two of these pulses were detected simultaneously in channels of 16 MHz bandwidth centered at 44 MHz, 60 MHz, and 76 MHz, including one pulse which was also detected in a channel centered at 28 MHz. We quantify statistics of pulse amplitude and pulse shape characteristics, including pulse broadening. Amplitude statistics are consistent with expectations based on extrapolations from previous work at higher and lower frequencies. Pulse broadening is found to be relatively high, but not significantly greater than expected. We present procedures that have been found to be effective for observing giant pulses in this frequency range.
C1 [Ellingson, S. W.; Wolfe, C. N.] Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24060 USA.
[Clarke, T. E.; Hicks, B. C.; Wilson, T. L.] USN, Res Lab, Washington, DC 20375 USA.
[Craig, J.; Taylor, G. B.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Lazio, T. J. W.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
RP Ellingson, SW (reprint author), Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24060 USA.
FU 6.1 base funding; Office of Naval Research [N00014-07-C-0147]; National
Science Foundation of the University Radio Observatories program
[AST-1139963, AST-1139974]; National Radio Astronomy Observatory
FX The authors acknowledge helpful discussions with W. A. Coles, T. H.
Hankins, J. F. Helmboldt, N. E. Kassim, W. A. Majid, and B. J. Rickett.
Some of the data presented in this paper were processed using the LWA1
User Computing Facility, which is a joint project of the University of
New Mexico, Virginia Tech, and the Jet Propulsion Laboratory and in
which J. Dowell was the primary contributor. Basic research in astronomy
at the Naval Research Laboratory is supported by 6.1 base funding.
Construction of LWA1 was supported by the Office of Naval Research under
Contract N00014-07-C-0147. Support for operations and continuing
development of LWA1 is provided by the National Science Foundation under
grants AST-1139963 and AST-1139974 of the University Radio Observatories
program. The authors acknowledge the support of the National Radio
Astronomy Observatory.
NR 34
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PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD MAY 10
PY 2013
VL 768
IS 2
AR 136
DI 10.1088/0004-637X/768/2/136
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 134QK
UT WOS:000318228400039
ER
PT J
AU McCauley, PI
Saar, SH
Raymond, JC
Ko, YK
Saint-Hilaire, P
AF McCauley, Patrick I.
Saar, Steven H.
Raymond, John C.
Ko, Yuan-Kuen
Saint-Hilaire, Pascal
TI EXTREME-ULTRAVIOLET AND X-RAY OBSERVATIONS OF COMET LOVEJOY (C/2011 W3)
IN THE LOWER CORONA
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE comets: general; comets: individual (C/2011 W3); Sun: corona
ID BRIGHT SUNGRAZING COMETS; ATOMIC DATABASE; ORBITAL EVOLUTION; UVCS
OBSERVATION; EMISSION-LINES; KREUTZ SYSTEM; SOLAR-WIND; FRAGMENTATION;
MISSION; CHIANTI
AB We present an analysis of extreme-ultraviolet and soft X-ray emission detected toward Comet Lovejoy (C/2011 W3) during its post-perihelion traverse of the solar corona on 2011 December 16. Observations were recorded by the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory and the X-Ray Telescope (XRT) aboard Hinode. A single set of contemporaneous images is explored in detail, along with prefatory consideration for time evolution using only the 171 angstrom data. For each of the eight passbands, we characterize the emission and derive outgassing rates where applicable. As material sublimates from the nucleus and is immersed in coronal plasma, it rapidly ionizes through charge states seldom seen in this environment. The AIA data show four stages of oxygen ionization (O III-O VI) along with C IV, while XRT likely captured emission from O VII, a line typical of the corona. With a nucleus of at least several hundred meters upon approach to a perihelion that brought the comet to within 0.2 R-circle dot of the photosphere, Lovejoy was the most significant sungrazer in recent history. Correspondingly high outgassing rates on the order of 10(32.5) oxygen atoms per second are estimated. Assuming that the neutral oxygen comes from water, this translates to a mass-loss rate of similar to 9.5 x 10(9) g s(-1), and based only on the 171 angstrom observations, we find a total mass loss of similar to 10(13) g over the AIA egress. Additional and supporting analyses include a differential emission measure to characterize the coronal environment, consideration for the opening angle, and a comparison of the emission's leading edge with the expected position of the nucleus.
C1 [McCauley, Patrick I.; Saar, Steven H.; Raymond, John C.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Ko, Yuan-Kuen] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Saint-Hilaire, Pascal] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
RP McCauley, PI (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
RI McCauley, Patrick/P-7747-2015
OI McCauley, Patrick/0000-0002-1450-7350
FU Smithsonian Astrophysical Observatory (SAO) via Hinode/XRT [NNM07AB07C];
SDO/AIA [SP02H1701R]
FX Support for this work was provided by the Smithsonian Astrophysical
Observatory (SAO) via funding from Hinode/XRT through grant NNM07AB07C
and SDO/AIA through grant SP02H1701R. Hinode is a Japanese mission
developed and launched by ISAS/JAXA, with NAOJ as domestic partner and
NASA and STFC (UK) as international partners. It is operated by these
agencies in cooperation with ESA and the NSC (Norway). SDO is a NASA
satellite, and the AIA instrument team is led by Lockheed Martin, with
SAO as the major subcontractor. We gratefully acknowledge Ted Tarbell
for his work in aligning the SOT and SDO data, which was important for
Figure 6. P.I.M. thanks the SSXG members at SAO for being
characteristically helpful and welcoming.
NR 39
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U1 0
U2 10
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 MAY 10
PY 2013
VL 768
IS 2
AR 161
DI 10.1088/0004-637X/768/2/161
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 134QK
UT WOS:000318228400064
ER
PT J
AU Wood, BE
Laming, JM
AF Wood, Brian E.
Laming, J. Martin
TI THE CORONAL ABUNDANCES OF MID-F DWARFS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE stars: coronae; stars: individual pi(3) Ori); stars: late-type; X-rays:
stars
ID X-RAY SPECTROSCOPY; EMISSION MEASURE DISTRIBUTIONS;
INTERMEDIATE-ACTIVITY LEVELS; SOLAR ACTIVE REGIONS; XMM-NEWTON VIEW;
NON-WKB MODELS; T-TAURI STARS; STELLAR CORONAE; MAGNETIC RECONNECTION;
LOOPS OBSERVATIONS
AB A Chandra spectrum of the moderately active nearby F6 V star pi(3) Ori is used to study the coronal properties of mid-F dwarfs. We find that pi(3) Ori's coronal emission measure distribution is very similar to those of moderately active G and K dwarfs, with an emission measure peak near log T = 6.6 seeming to be ubiquitous for such stars. In contrast to coronal temperature, coronal abundances are known to depend on spectral type for main sequence stars. Based on this previously known relation, we expected pi(3) Ori's corona to exhibit an extremely strong "first ionization potential (FIP) effect," a phenomenon first identified on the Sun where elements with low FIP are enhanced in the corona. We instead find that pi(3) Ori's corona exhibits a FIP effect essentially identical to that of the Sun and other early G dwarfs, perhaps indicating that the increase in FIP bias toward earlier spectral types stops or at least slows for F stars. We find that pi(3) Ori's coronal characteristics are significantly different from two previously studied mid-F stars, Procyon (F5 IV-V) and tau Boo (F7 V). We believe pi(3) Ori is more representative of the coronal characteristics of mid-F dwarfs, with Procyon being different because of luminosity class, and tau Boo being different because of the effects of one of two close companions, one stellar (tau Boo B: M2 V) and one planetary.
C1 [Wood, Brian E.; Laming, J. Martin] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Wood, BE (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
FU NASA through issued by the Chandra X-Ray Center (CXC) [NNH11AQ23I,
GO1-12012Z]
FX We would like to thank Harry Warren for providing us with the solar
active region EM distribution in Figure 2, and the referee Manuel Gudel
for helpful comments. Support for this work was provided by NASA through
ATP award NNH11AQ23I and Chandra Award Number GO1-12012Z issued by the
Chandra X-Ray Center (CXC).
NR 82
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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 MAY 10
PY 2013
VL 768
IS 2
AR 122
DI 10.1088/0004-637X/768/2/122
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 134QK
UT WOS:000318228400025
ER
PT J
AU Meyers, FN
Loh, KJ
Dodds, JS
Baltazar, A
AF Meyers, Frederick N.
Loh, Kenneth J.
Dodds, John S.
Baltazar, Arturo
TI Active sensing and damage detection using piezoelectric zinc oxide-based
nanocomposites
SO NANOTECHNOLOGY
LA English
DT Article
ID LAMB WAVES; MECHANICAL REINFORCEMENT; TRANSDUCERS; COMPOSITES; FILM;
FABRICATION; COPOLYMER; NANOBELTS; FATIGUE; SENSORS
AB This study investigated the design and performance of piezoelectric nanocomposite-based interdigitated transducers (IDTs) for active sensing and damage detection. First, thin films that are highly piezoelectric and mechanically flexible were designed by embedding zinc oxide (ZnO) nanoparticles in a poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) piezo-polymer matrix. Second, the suspended nanoparticle solutions were then spin coated onto patterned comb electrodes to fabricate the IDTs. The films were then poled to align their electric domains and to increase their permanent piezoelectricity. Upon IDT fabrication, its sensing and actuation of Lamb waves on an aluminum pipe was validated. These results were also compared to data obtained from commercial Macro Fiber Composite IDT transducers. In the last phase of this work, damage detection was demonstrated by mounting these nanocomposite sensors and actuators (using a pitch-catch setup) onto an aluminum pipe and plate. Damage was simulated by tightening a band clamp around the pipe and by drilling holes in the plate. A damage index calculation was used to compare results corresponding to different levels of damage applied to the plate (i.e., different drilled hole depths), and good correlation was observed. Thus, ZnO/PVDF-TrFE transducers were shown to have the potential for use as piezoelectric transducers for structural health monitoring and damage detection.
C1 [Meyers, Frederick N.] Univ Calif Davis, Dept Mech & Aeronaut Engn, Davis, CA 95616 USA.
[Loh, Kenneth J.] Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA.
[Dodds, John S.] USN, Ctr Surface Warfare, Crane, Fallbrook Detachment, Fallbrook, CA 92028 USA.
[Baltazar, Arturo] CINVESTAV, Robot & Adv Mfg Program, Coah 25900, Mexico.
RP Meyers, FN (reprint author), Univ Calif Davis, Dept Mech & Aeronaut Engn, Davis, CA 95616 USA.
EM kjloh@ucdavis.edu
RI Loh, Kenneth/P-3218-2016
OI Loh, Kenneth/0000-0003-1448-6251
FU UC MEXUS-CONACYT program
FX The authors thank the UC MEXUS-CONACYT program for the financial support
of this research. The authors would also like to express their sincere
gratitude to the staff of the Northern California Nanotechnology Center
(NC2) for their assistance with photolithography processes,
as well as Mr Donghyeon Ryu for assisting with SEM imaging. Dr Valeria
La Saponara is also acknowledged for providing access to her equipment
for laboratory testing.
NR 38
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U1 6
U2 131
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0957-4484
EI 1361-6528
J9 NANOTECHNOLOGY
JI Nanotechnology
PD MAY 10
PY 2013
VL 24
IS 18
AR 185501
DI 10.1088/0957-4484/24/18/185501
PG 10
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 124MN
UT WOS:000317468700009
PM 23579369
ER
PT J
AU First, MR
Robbins-Wamsley, SH
Riley, SC
Moser, CS
Smith, GE
Tamburri, MN
Drake, LA
AF First, Matthew R.
Robbins-Wamsley, Stephanie H.
Riley, Scott C.
Moser, Cameron S.
Smith, George E.
Tamburri, Mario N.
Drake, Lisa A.
TI Stratification of Living Organisms in Ballast Tanks: How Do Organism
Concentrations Vary as Ballast Water Is Discharged?
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID MARINE SNOW; TRANSPORT; DYNAMICS
AB Vertical migrations of living organisms and settling of particle-attached organisms lead to uneven distributions of biota at different depths in the water column. In ballast tanks, heterogeneity could lead to different population estimates depending on the portion of the discharge sampled. For example, concentrations of organisms exceeding a discharge standard may not be detected if sampling occurs during periods of the discharge when concentrations are low. To determine the degree of stratification, water from ballast tanks was sampled at two experimental facilities as the tanks were drained after water was held for 1 or 5 days. Living organisms >= 50 mu m were counted in discrete segments of the drain (e.g., the first 20 min of the drain operation, the second 20 min interval, etc.), thus representing different strata in the tank. In 1 and 5 day trials at both facilities, concentrations of organisms varied among drain segments, and the patterns of stratification varied among replicate trials. From numerical simulations, the optimal sampling strategy for stratified tanks is to collect multiple time-integrated samples spaced relatively evenly throughout the discharge event.
C1 [First, Matthew R.; Robbins-Wamsley, Stephanie H.; Riley, Scott C.] SAIC Inc, Key West, FL 33041 USA.
[Moser, Cameron S.] EXCET Inc, Key West, FL 33041 USA.
[Smith, George E.] Smithsonian Environm Res Ctr, Edgewater, MD 21037 USA.
[Tamburri, Mario N.] Univ Maryland, Chesapeake Biol Lab, Ctr Environm Sci, Solomons, MD 20688 USA.
[Drake, Lisa A.] USN, Div Chem, Res Lab, Key West, FL 33041 USA.
RP First, MR (reprint author), SAIC Inc, Key West, FL 33041 USA.
EM matthew.first.ctr@nrl.navy.mil
RI Tamburri, Mario/F-7193-2013;
OI First, Matthew/0000-0003-1330-3353; First, Matt/0000-0003-3465-2376
FU United States Coast Guard Environmental (USCG) Standards Division
[CG-5224, HSCG23-10-X-MMS192, HSCG23-11-X-MMS154]; Maryland Port
Administration; US Maritime Administration
FX This work was supported by the United States Coast Guard Environmental
(USCG) Standards Division (CG-5224, contracts HSCG23-10-X-MMS192 and
HSCG23-11-X-MMS154), although this work does not reflect official USCG
policy. Support for the work conducted at MERC was provided by the
Maryland Port Administration and US Maritime Administration. The
research conducted at the Naval Research Laboratory in Key West was
supported by Diane Lysogorski (Section Head of NRL Code 6136 and
Director of the Center for Corrosion Science and Engineering, Key West,
Florida). We are grateful to Richard Everett (USCG) for his input and
advice with this effort. We also appreciate the comments and suggestions
provided by two anonymous reviewers, Ms. Lysogorski, and Richard Colton
(Superintendent, Chemistry Division, Naval Research Laboratory), which
improved and clarified earlier drafts of this manuscript.
NR 29
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U1 1
U2 27
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD MAY 7
PY 2013
VL 47
IS 9
BP 4442
EP 4448
DI 10.1021/es400033z
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 141WA
UT WOS:000318756000062
PM 23614690
ER
PT J
AU Boesenberg, AJ
Restorff, JB
Wun-Fogle, M
Sailsbury, H
Summers, E
AF Boesenberg, A. J.
Restorff, J. B.
Wun-Fogle, M.
Sailsbury, H.
Summers, E.
TI Texture development in Galfenol wire
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article; Proceedings Paper
CT 12th Joint MMM-Intermag Conference
CY JAN 14-18, 2013
CL Chicago, IL
SP AIP Publishing, IEEE Magnet Soc
ID FE-GA; ALLOYS
AB Galfenol (Fe-Ga alloy) wire fabrication provides a low cost alternative to directional solidification methods. This work evaluates the compositional dependence of the wire drawing suitability of Fe-Ga and characterizes the microstructural and magnetic properties of these wires. Wire has been produced with Ga contents between 10 at.% and 17 at.% to allow determination of the ductile to brittle transition (DTBT) in wire manufacture. Published results on chill cast bend specimens indicated that a DTBT occurs at roughly 15 at.% Ga. This DTBT was observed under tensile loading with a corresponding change in fracture behavior from transverse fracture to intergranular fracture. For improved magnetostrictive performance, higher Ga contents are desired, closer to the 17 at.% Ga evaluated in this work. Electron backscattered diffraction B-H loop and resonance measurements as a function of magnetic field (to determine modulus and coupling factor) are presented for as-drawn, furnace, and direct current (DC) annealed wire. Galfenol wire produced via traditional drawing methods is found to have a strong < 110 > (alpha) texture parallel to the drawing direction. As-drawn wire was observed to have a lower magnetic permeability and larger hysteresis than DC annealed wire. This is attributed to the presence of a large volume of crystalline defects; such as vacancies and dislocations. (C) 2013 American Institute of Physics.
C1 [Boesenberg, A. J.; Summers, E.] ETREMA Prod Inc, Ames, IA 50010 USA.
[Restorff, J. B.; Wun-Fogle, M.] USN, Ctr Surface Warfare, Carderock Div, West Bethesda, MD 20817 USA.
[Sailsbury, H.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RP Boesenberg, AJ (reprint author), ETREMA Prod Inc, Ames, IA 50010 USA.
EM adam.boesenberg@etrema.com
NR 11
TC 2
Z9 2
U1 1
U2 19
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 7
PY 2013
VL 113
IS 17
AR 17A909
DI 10.1063/1.4794186
PG 3
WC Physics, Applied
SC Physics
GA 149BK
UT WOS:000319292800054
ER
PT J
AU van 't Erve, OMJ
Friedman, AL
Cobas, E
Li, CH
Hanbicki, AT
McCreary, KM
Robinson, JT
Jonker, BT
AF van 't Erve, O. M. J.
Friedman, A. L.
Cobas, E.
Li, C. H.
Hanbicki, A. T.
McCreary, K. M.
Robinson, J. T.
Jonker, B. T.
TI A graphene solution to conductivity mismatch: Spin injection from
ferromagnetic metal/graphene tunnel contacts into silicon
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article; Proceedings Paper
CT 12th Joint MMM-Intermag Conference
CY JAN 14-18, 2013
CL Chicago, IL
SP AIP Publishing, IEEE Magnet Soc
ID N-TYPE SILICON; RESONANCE LINEWIDTH; SPINTRONICS; LOGIC
AB Spin-injection into silicon from a ferromagnetic metal requires a solution to the conductivity mismatch. Oxide tunnel barriers such as MgO, Al2O3, or SiO2 are typically used to solve this problem, but often include defects and must be several monolayers thick to avoid pinholes. At these thicknesses, the overall tunnel-barrier becomes highly resistive, preventing these junctions to be used in devices based on local magnetoresistance. Besides providing a spin dependent interface resistance, these barriers also prevent metal ions from diffusing into silicon, which would severely compromise device performance. Here, we show that we can lower the junction resistance by 2-3 orders of magnitude when using a single layer of graphene as the tunnel barrier rather than SiO2 or Al2O3. Hanle measurements show that the spin lifetime is independent of the tunnel barrier material (graphene, Al2O3, SiO2), demonstrating that the lifetime measured is not dominated by some characteristics of the tunnel barrier. The graphene provides a highly uniform barrier, with well-controlled thickness and minimal defect and trapped charge density, while successfully circumventing the conductivity mismatch between a ferromagnetic metal and Si and preventing metal ion diffusion from the FM contact.
C1 [van 't Erve, O. M. J.; Friedman, A. L.; Cobas, E.; Li, C. H.; Hanbicki, A. T.; McCreary, K. M.; Robinson, J. T.; Jonker, B. T.] USN, Res Lab, Washington, DC 20375 USA.
RP van 't Erve, OMJ (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM olaf.vanterve@nrl.navy.mil
RI Friedman, Adam/D-9610-2011; Robinson, Jeremy/F-2748-2010
OI Friedman, Adam/0000-0003-0597-5432;
NR 26
TC 4
Z9 4
U1 1
U2 34
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 7
PY 2013
VL 113
IS 17
AR 17C502
DI 10.1063/1.4793712
PG 3
WC Physics, Applied
SC Physics
GA 149BK
UT WOS:000319292800179
ER
PT J
AU Booth-Kewley, S
Schmied, EA
Highfill-McRoy, RM
Larson, GE
Garland, CF
Ziajko, LA
AF Booth-Kewley, Stephanie
Schmied, Emily A.
Highfill-McRoy, Robyn M.
Larson, Gerald E.
Garland, Cedric F.
Ziajko, Lauretta A.
TI Predictors of psychiatric disorders in combat veterans
SO BMC PSYCHIATRY
LA English
DT Article
DE Psychiatric disorders; Military populations; Marines; Iraq/Afghanistan
wars; Veterans; Combat
ID POSTTRAUMATIC-STRESS-DISORDER; TRAUMATIC BRAIN-INJURY; MENTAL-HEALTH
DIAGNOSES; WAR ZONE STRESSORS; UK ARMED-FORCES; RISK-FACTORS; VIETNAM
VETERANS; US SOLDIERS; GULF-WAR; ORGANIZATIONAL COMMITMENT
AB Background: Most previous research that has examined mental health among Operation Enduring Freedom and Operation Iraqi Freedom (OEF/OIF) combatants has relied on self-report measures to assess mental health outcomes; few studies have examined predictors of actual mental health diagnoses. The objective of this longitudinal investigation was to identify predictors of psychiatric disorders among Marines who deployed to combat in Iraq and Afghanistan.
Methods: The study sample consisted of 1113 Marines who had deployed to Iraq or Afghanistan. Demographic and psychosocial predictor variables from a survey that all Marines in the sample had completed were studied in relation to subsequent psychiatric diagnoses. Univariate and multivariate logistic regression were used to determine the influence of the predictors on the occurrence of psychiatric disorders.
Results: In a sample of Marines with no previous psychiatric disorder diagnoses, 18% were diagnosed with a new-onset psychiatric disorder. Adjusting for other variables, the strongest predictors of overall psychiatric disorders were female gender, mild traumatic brain injury symptoms, and satisfaction with leadership. Service members who expressed greater satisfaction with leadership were about half as likely to develop a mental disorder as those who were not satisfied. Unique predictors of specific types of mental disorders were also identified.
Conclusions: Overall, the study's most relevant result was that two potentially modifiable factors, low satisfaction with leadership and low organizational commitment, predicted mental disorder diagnoses in a military sample. Additional research should aim to clarify the nature and impact of these factors on combatant mental health.
C1 [Booth-Kewley, Stephanie; Schmied, Emily A.; Highfill-McRoy, Robyn M.; Larson, Gerald E.; Garland, Cedric F.] USN, Hlth Res Ctr, Behav Sci & Epidemiol Dept, San Diego, CA 92106 USA.
[Garland, Cedric F.] Univ Calif San Diego, Dept Family & Prevent Med, La Jolla, CA 92093 USA.
[Garland, Cedric F.] Univ Calif San Diego, Moores UCSD Canc Ctr, La Jolla, CA 92093 USA.
[Ziajko, Lauretta A.] USN, Med Ctr, San Diego, CA 92134 USA.
RP Booth-Kewley, S (reprint author), USN, Hlth Res Ctr, Behav Sci & Epidemiol Dept, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM stephanie.kewley@med.navy.mi
FU U.S. Navy Bureau of Medicine and Surgery, Washington, DC [61111]
FX This research was supported by the U.S. Navy Bureau of Medicine and
Surgery, Washington, DC, under Work Unit No. 61111. The views and
opinions expressed herein are those of the authors and do not
necessarily reflect the official policy or position of the Department of
the Navy, Department of Defense, or the U.S. Government. Approved for
public release; distribution is unlimited. This research has been
conducted in compliance with all applicable federal regulations
governing the protection of human subjects in research (protocol
NHRC.2007.0003).
NR 55
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Z9 9
U1 1
U2 18
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-244X
J9 BMC PSYCHIATRY
JI BMC Psychiatry
PD MAY 7
PY 2013
VL 13
AR 130
DI 10.1186/1471-244X-13-130
PG 11
WC Psychiatry
SC Psychiatry
GA 145TW
UT WOS:000319041800003
PM 23651663
ER
PT J
AU Mier-y-Teran-Romero, L
Silber, M
Hatzimanikatis, V
AF Mier-y-Teran-Romero, Luis
Silber, Mary
Hatzimanikatis, Vassily
TI Mechanistically Consistent Reduced Models of Synthetic Gene Networks
SO BIOPHYSICAL JOURNAL
LA English
DT Article
ID MESSENGER-RNA DECAY; PROTEIN EXPRESSION PATTERNS; ESCHERICHIA-COLI;
OSCILLATORY EXPRESSION; EUKARYOTIC TRANSLATION; TIME DELAYS;
DEGRADATION; BACTERIA; HES1; TRANSCRIPTION
AB Designing genetic networks with desired functionalities requires an accurate mathematical framework that accounts for the essential mechanistic details of the system. Here, we formulate a time-delay model of protein translation and mRNA degradation by systematically reducing a detailed mechanistic model that explicitly accounts for the ribosomal dynamics and the cleaving of mRNA by endonucleases. We exploit various technical and conceptual advantages that our time-delay model offers over the mechanistic model to probe the behavior of a self-repressing gene over wide regions of parameter space. We show that a heuristic time-delay model of protein synthesis of a commonly used form yields a notably different prediction for the parameter region where sustained oscillations occur. This suggests that such heuristics can lead to erroneous results. The functional forms that arise from our systematic reduction can be used for every system that involves transcription and translation and they could replace the commonly used heuristic time-delay models for these processes. The results from our analysis have important implications for the design of synthetic gene networks and stress that such design must be guided by a combination of heuristic models and mechanistic models that include all relevant details of the process.
C1 [Mier-y-Teran-Romero, Luis] Johns Hopkins Bloomberg Sch Publ Hlth, Baltimore, MD USA.
[Mier-y-Teran-Romero, Luis] USN, Nonlinear Syst Dynam Sect, Div Plasma Phys, Res Lab, Washington, DC USA.
[Silber, Mary] Northwestern Univ, Evanston, IL USA.
[Silber, Mary] Northwestern Univ, Northwestern Inst Complex Syst, Evanston, IL USA.
[Hatzimanikatis, Vassily] Ecole Polytech Fed Lausanne, Lab Computat Syst Biotechnol, CH-1015 Lausanne, Switzerland.
[Hatzimanikatis, Vassily] Swiss Inst Bioinformat, CH-1015 Lausanne, Switzerland.
RP Hatzimanikatis, V (reprint author), Ecole Polytech Fed Lausanne, Lab Computat Syst Biotechnol, CH-1015 Lausanne, Switzerland.
EM vassily.hatzimanikatis@epfl.ch
RI Silber, Mary/B-7389-2009; Hatzimanikatis, Vassily/G-6505-2010
OI Hatzimanikatis, Vassily/0000-0001-6432-4694
FU National Science Foundation [DMS-0709232]; Swiss Federal Institute of
Technology; DuPont Young Professor award
FX This work was supported by the National Science Foundation (award No.
DMS-0709232 to M.S.), by the Swiss Federal Institute of Technology, and
by a DuPont Young Professor award to V.H.
NR 45
TC 0
Z9 0
U1 0
U2 6
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
J9 BIOPHYS J
JI Biophys. J.
PD MAY 7
PY 2013
VL 104
IS 9
BP 2098
EP 2109
DI 10.1016/j.bpj.2013.03.031
PG 12
WC Biophysics
SC Biophysics
GA 141VJ
UT WOS:000318754300031
PM 23663853
ER
PT J
AU Ewing, KJ
Gibson, D
Sanghera, J
Miklos, F
AF Ewing, K. J.
Gibson, D.
Sanghera, J.
Miklos, F.
TI Collection method for chemical particulates on surfaces with detection
using thermal desorption-ion trap mass spectrometry
SO ANALYTICA CHIMICA ACTA
LA English
DT Article
DE Chemical particulates; Collection; Surfaces; Screens
ID IONIZATION SOURCE
AB Successful analysis of particulate/low vapor pressure analytes such as explosives and toxic chemicals, and commercial pesticides require new sampling tools that enable detection of these analytes using current vapor phase detection instruments. We describe a sampling approach that uses stainless steel screens coated with a sticky polydimethyl siloxane (PDMS) coating to capture particulates from surfaces. Preliminary results for the collection of dimethyl methylphosphonate (DMMP) sorbed onto silica gel (SG) particulates (DMMP/SG) from a surface with subsequent analysis by thermal desorption-cylindrical ion trap mass spectrometry (TD-CITMS) are reported. Published by Elsevier B.V.
C1 [Ewing, K. J.; Gibson, D.; Sanghera, J.] USN, Res Lab, Washington, DC 20375 USA.
[Miklos, F.] Sotera Def Solut, Herndon, VA USA.
RP Ewing, KJ (reprint author), USN, Res Lab, Div Opt Sci, Code 5620,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM ken.ewing@nrl.navy.mil
FU Joint Program Executive Office for Chemical and Biological Defense
FX The authors gratefully thank the Joint Program Executive Office for
Chemical and Biological Defense/Joint Project Manager for Nuclear,
Biological and Chemical Contamination Avoidance for supporting this
work.
NR 18
TC 2
Z9 2
U1 0
U2 16
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0003-2670
J9 ANAL CHIM ACTA
JI Anal. Chim. Acta
PD MAY 7
PY 2013
VL 776
BP 64
EP 68
DI 10.1016/j.aca.2013.03.039
PG 5
WC Chemistry, Analytical
SC Chemistry
GA 136QU
UT WOS:000318379300009
PM 23601282
ER
PT J
AU Finkel, P
Murphy, CJ
Stace, J
Bussmann, K
Heitmann, A
Amin, A
AF Finkel, Peter
Murphy, Colin J.
Stace, Joseph
Bussmann, Konrad
Heitmann, Adam
Amin, Ahmed
TI Elastic stability of high coupling ternary single crystals
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID PHASE; STRESS; STRAIN; FIELD
AB A sub-hertz harmonic force was used to investigate the elastic response of ternary (1-y-x) Pb(In1/2Nb1/2) O-3-yPb(Mg1/3Nb2/3)O-3-xPbTiO(3) (PIN-PMN-PT) single crystal with compositions (x = 0.30 and x = 0.33) near the Morphotropic Phase Boundary (MPB) under isothermal and zero-field conditions. The observed instability under mechanical compression is attributable to a ferroelectric rhombohedral F-R-ferroelectric orthorhombic F-O phase transformation. The associated strain is a function of proximity to MPB and is consistent with the prediction of the classical Devonshire theory. Isothermal resonance-antiresonance frequency sweeps versus temperature revealed a non-vertical MPB with (partial derivative T-RT/partial derivative x)<0, where T-RT is the rhombohedral-tetragonal transition temperature. These results provide insights into the role of PT content on the stability of PIN-PMN-PT crystals used for electromechanical devices and sound projectors.
C1 [Finkel, Peter; Murphy, Colin J.; Stace, Joseph; Heitmann, Adam; Amin, Ahmed] USN, Sensors & Sonar Syst Dept, Undersea Warfare Ctr, Newport, RI 02840 USA.
[Bussmann, Konrad] USN, Res Lab, Washington, DC 20375 USA.
RP Finkel, P (reprint author), USN, Sensors & Sonar Syst Dept, Undersea Warfare Ctr, Newport, RI 02840 USA.
FU Office of Naval Research
FX The financial support of Office of Naval Research is gratefully
acknowledged. We also thank Dr. Jun Luo for helpful discussions and TRS
for providing the crystals and permission to publish the results.
NR 18
TC 8
Z9 8
U1 0
U2 20
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAY 6
PY 2013
VL 102
IS 18
AR 182903
DI 10.1063/1.4804629
PG 3
WC Physics, Applied
SC Physics
GA 164VV
UT WOS:000320439900053
ER
PT J
AU Viner, V
AF Viner, Veronika
TI Frontal polymerization of a cyanate ester
SO JOURNAL OF APPLIED POLYMER SCIENCE
LA English
DT Article
DE curing of polymers; radical polymerization; thermosets
ID COMPOSITES; SYSTEMS
AB Thermal frontal polymerization is an exothermic process that uses a propagating wave to polymerize monomers via an external heat source, such as a soldering iron, to initiate front propagation. Herein, for the first time, the curing of a cyanate ester via thermal frontal polymerization is described with two different external heat sources. However, issues of bubbling due to vaporization of the amine catalyst generally resulted in incomplete frontal polymerization when a soldering iron was used as the external heat source. To counter this issue, dual-strip polymerization systems were used, wherein the heat from the exothermic polymerization of a free-radical system was used to initiate the frontal polymerization of a cyanate ester system with an amine catalyst. As a result, complete frontal polymerization occurred. Additionally, the effect of the width of the acrylate strip and its impact on the front temperature, initial velocity, and steady-state velocity of the adjacent cyanate ester system were studied. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
C1 USN, Div Chem, Res Dept, Naval Air Warfare Ctr,Naval Air Syst Command, China Lake, CA 93555 USA.
RP Viner, V (reprint author), USN, Div Chem, Res Dept, Naval Air Warfare Ctr,Naval Air Syst Command, 1900 N Knox Rd,Stop 6303, China Lake, CA 93555 USA.
EM veronika.viner@navy.mil
FU China Lake Naval Air Warfare Center Weapons Division
FX This research was funded by China Lake Naval Air Warfare Center Weapons
Division.
NR 22
TC 6
Z9 6
U1 2
U2 31
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0021-8995
J9 J APPL POLYM SCI
JI J. Appl. Polym. Sci.
PD MAY 5
PY 2013
VL 128
IS 3
BP 2208
EP 2215
DI 10.1002/app.36785
PG 8
WC Polymer Science
SC Polymer Science
GA 089RH
UT WOS:000314927200104
ER
PT J
AU Levas, SJ
Grottoli, AG
Hughes, A
Osburn, CL
Matsui, Y
AF Levas, Stephen J.
Grottoli, Andrea G.
Hughes, Adam
Osburn, Christopher L.
Matsui, Yohei
TI Physiological and Biogeochemical Traits of Bleaching and Recovery in the
Mounding Species of Coral Porites lobata: Implications for Resilience in
Mouding Corals
SO PLOS ONE
LA English
DT Article
ID ORGANIC-MATTER RELEASE; EASTERN PACIFIC CORALS; REEF-BUILDING CORALS;
CLIMATE-CHANGE; STYLOPHORA-PISTILLATA; MONTASTREA-ANNULARIS;
SCLERACTINIAN CORAL; GALAXEA-FASCICULARIS; ELEVATED-TEMPERATURE;
SKELETAL DELTA-C-13
AB Mounding corals survive bleaching events in greater numbers than branching corals. However, no study to date has determined the underlying physiological and biogeochemical trait(s) that are responsible for mounding coral holobiont resilience to bleaching. Furthermore, the potential of dissolved organic carbon (DOC) as a source of fixed carbon to bleached corals has never been determined. Here, Porites lobata corals were experimentally bleached for 23 days and then allowed to recover for 0, 1, 5, and 11 months. At each recovery interval a suite of analyses were performed to assess their recovery (photosynthesis, respiration, chlorophyll a, energy reserves, tissue biomass, calcification, delta C-13 of the skeletal, delta C-13, and delta N-15 of the animal host and endosymbiont fractions). Furthermore, at 0 months of recovery, the assimilation of photosynthetically acquired and zooplankton-feeding acquired carbon into the animal host, endosymbiont, skeleton, and coral-mediated DOC were measured via C-13-pulse-chase labeling. During the first month of recovery, energy reserves and tissue biomass in bleached corals were maintained despite reductions in chlorophyll a, photosynthesis, and the assimilation of photosynthetically fixed carbon. At the same time, P. lobata corals catabolized carbon acquired from zooplankton and seemed to take up DOC as a source of fixed carbon. All variables that were negatively affected by bleaching recovered within 5 to 11 months. Thus, bleaching resilience in the mounding coral P. lobata is driven by its ability to actively catabolize zooplankton-acquired carbon and seemingly utilize DOC as a significant fixed carbon source, facilitating the maintenance of energy reserves and tissue biomass. With the frequency and intensity of bleaching events expected to increase over the next century, coral diversity on future reefs may favor not only mounding morphologies but species like P. lobata, which have the ability to utilize heterotrophic sources of fixed carbon that minimize the impact of bleaching and promote fast recovery.
C1 [Levas, Stephen J.; Grottoli, Andrea G.; Matsui, Yohei] Ohio State Univ, Sch Earth Sci, Columbus, OH 43210 USA.
[Hughes, Adam] Scottish Assoc Marine Sci, Oban, Argyll, Scotland.
[Osburn, Christopher L.] Naval Res Lab, Div Chem, Washington, DC USA.
RP Levas, SJ (reprint author), Ohio State Univ, Sch Earth Sci, Columbus, OH 43210 USA.
EM levas.1@osu.edu
RI Grottoli, Andrea/C-9736-2009; Hughes, Adam/J-7867-2013; Hughes,
Adam/L-1088-2016
FU National Science Foundation divisions of Biological Oceanography
[0542415]; Chemical Oceanography [0610487]; Mellon Foundation; Ford
Foundation Diversity Fellowship
FX This work was funded by the National Science Foundation divisions of
Biological Oceanography (Grant No. 0542415) and Chemical Oceanography
(Grant No. 0610487) (http://www.nsf.gov), the Mellon Foundation
(http://www.mellon.org), and the Ford Foundation Diversity Fellowship
(http://sites.nationalacademies.org/pga/fordfellowships/). The funders
had no role in study design, data collection and analysis, decision to
publish, or preparation of the manuscript.
NR 96
TC 23
Z9 23
U1 3
U2 72
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD MAY 2
PY 2013
VL 8
IS 5
AR e63267
DI 10.1371/journal.pone.0063267
PG 15
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 175AF
UT WOS:000321200500065
PM 23658817
ER
PT J
AU Risch, M
Grimaud, A
May, KJ
Stoerzinger, KA
Chen, TJ
Mansour, AN
Shao-Horn, Y
AF Risch, Marcel
Grimaud, Alexis
May, Kevin J.
Stoerzinger, Kelsey A.
Chen, Tina J.
Mansour, Azzam N.
Shao-Horn, Yang
TI Structural Changes of Cobalt-Based Perovskites upon Water Oxidation
Investigated by EXAFS
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID X-RAY-ABSORPTION; OXYGEN-EVOLVING CATALYST; FINE-STRUCTURE; OXIDE
CATALYSTS; ELECTRON-YIELD; EVOLUTION; ELECTROCATALYSIS; SPECTROSCOPY;
DIFFRACTION; PRINCIPLES
AB While many perovskites. remain crystalline during the oxygen evolution reaction (OER) in alkaline media, some highly active perovskites become amorphous. We studied the local structure changes of perovskites LaCoO3, Ba0.5Sr0.5Co0.8Fe0.2O3-delta, and SrCo0.8Fe0.2O3-delta before and after OER by X-ray absorption spectroscopy. No change in either local structure or OER activity was observed for LaCoO3, while considerably enhanced OER activities and the conversion of the local structure from corner sharing octahedra to edge sharing octahedra were noted for Ba0.5Sr0.5Co0.8Fe0.2O3-delta and SrCo0.8Fe0.2O3-delta as a result of the OER. Possible processes responsible for the structural change and enhanced OER activities are discussed.
C1 [Risch, Marcel; Grimaud, Alexis; May, Kevin J.; Stoerzinger, Kelsey A.; Chen, Tina J.; Shao-Horn, Yang] MIT, Electrochem Energy Lab, Cambridge, MA 02139 USA.
[Mansour, Azzam N.] USN, Ctr Surface Warfare, Carderock Div, West Bethesda, MD 20817 USA.
RP Shao-Horn, Y (reprint author), MIT, Electrochem Energy Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
EM shaohorn@mit.edu
RI Risch, Marcel/C-3583-2016;
OI Risch, Marcel/0000-0003-2820-7006; May, Kevin/0000-0002-1082-8333;
Stoerzinger, Kelsey/0000-0002-3431-8290
FU U.S. Department of Energy Hydrogen Initiative program
[DE-FG02-05ER15728]; Office of Naval Research (ONR) [N00014-12-1-0096,
N00014-12-WX20818]; U.S. Department of Energy, Division of Material
Sciences and Division of Chemical Sciences [DE-AC02-98CH10886]; National
Science Foundation [1122374]
FX This work is supported by the U.S. Department of Energy Hydrogen
Initiative program under award DE-FG02-05ER15728 and by the Office of
Naval Research (ONR) under Contract Nos. N00014-12-1-0096 (MIT) and
N00014-12-WX20818 (NSWCCD). The National Synchrotron Light Source is
supported by the U.S. Department of Energy, Division of Material
Sciences and Division of Chemical Sciences, under Contract No.
DE-AC02-98CH10886. The Office of Naval Research and contributions from
Participating Research Team members support Beamline X11. We thank
Kaumudi Pandya for excellent technical support, Sho Furutsuki and Atsuo
Yamada for providing LiCoO2 powder, David Kwabi for help with
the synchrotron measurements. K.A.S. was supported by the National
Science Foundation Graduate Research Fellowship under Grant No. 1122374.
NR 36
TC 71
Z9 71
U1 10
U2 106
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD MAY 2
PY 2013
VL 117
IS 17
BP 8628
EP 8635
DI 10.1021/jp3126768
PG 8
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 138UX
UT WOS:000318536600006
ER
PT J
AU Taylor, MK
Lee, T
AF Taylor, Marcus K.
Lee, Tracy
TI Neuroprotective Effect of Endogenous Dehydroepiandrosterone Sulfate
During Intense Military Training
SO MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
LA English
DT Meeting Abstract
CT 60th Annual Meeting of the American-College-of-Sports-Medicine
CY MAY 28-JUN 01, 2013
CL Indianapolis, IN
SP Amer Coll Sports Med
C1 [Taylor, Marcus K.] Naval Hlth Res Ctr, San Diego, CA USA.
[Lee, Tracy] Ctr Secur Forces Detachment North Isl, San Diego, CA USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0195-9131
EI 1530-0315
J9 MED SCI SPORT EXER
JI Med. Sci. Sports Exerc.
PD MAY
PY 2013
VL 45
IS 5
SU 1
MA 2450
BP 579
EP 579
PG 1
WC Sport Sciences
SC Sport Sciences
GA 300ND
UT WOS:000330469704342
ER
PT J
AU Myers, T
Lalani, T
Dent, M
Jiang, J
Daly, PL
Maguire, JD
Richards, AL
AF Myers, Todd
Lalani, Tahaniyat
Dent, Mike
Jiang, Ju
Daly, Patrick L.
Maguire, Jason D.
Richards, Allen L.
TI Detecting Rickettsia parkeri Infection from Eschar Swab Specimens
SO EMERGING INFECTIOUS DISEASES
LA English
DT Article
ID SPOTTED-FEVER; UNITED-STATES; TICK; TYPHUS; PCR
AB The typical clinical presentation of several spotted fever group Rickettsia infections includes eschars. Clinical diagnosis of the condition is usually made by analysis of blood samples. We describe a more sensitive, noninvasive means of obtaining a sample for diagnosis by using an eschar swab specimen from patients infected with Rickettsia parkeri.
C1 [Myers, Todd; Jiang, Ju; Richards, Allen L.] Naval Med Res Ctr, Silver Spring, MD 20910 USA.
[Lalani, Tahaniyat; Daly, Patrick L.; Maguire, Jason D.] Naval Med Ctr, Portsmouth, VA USA.
[Dent, Mike] Naval Air Stn, Pensacola, FL USA.
RP Myers, T (reprint author), Naval Med Res Ctr, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM Todd.myers@med.navy.mil
FU Armed Forces Health Surveillance Center [C0713_12_NM]; Infectious
Diseases Clinical Research Program [IDCRP-057]
FX This work was supported by funding from Armed Forces Health Surveillance
Center (C0713_12_NM) and the Infectious Diseases Clinical Research
Program (IDCRP-057).
NR 13
TC 13
Z9 15
U1 0
U2 0
PU CENTERS DISEASE CONTROL
PI ATLANTA
PA 1600 CLIFTON RD, ATLANTA, GA 30333 USA
SN 1080-6040
EI 1080-6059
J9 EMERG INFECT DIS
JI Emerg. Infect. Dis
PD MAY
PY 2013
VL 19
IS 5
BP 778
EP 780
DI 10.3201/eid1905.120622
PG 3
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 268LX
UT WOS:000328173400013
PM 23647926
ER
PT J
AU Bezuglyi, S
Kwiatkowski, J
Medynets, K
Solomyak, B
AF Bezuglyi, S.
Kwiatkowski, J.
Medynets, K.
Solomyak, B.
TI FINITE RANK BRATTELI DIAGRAMS: STRUCTURE OF INVARIANT MEASURES
SO TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY
LA English
DT Article
ID INTERVAL EXCHANGE TRANSFORMATIONS; ADIC TRANSFORMATIONS; UNIQUE
ERGODICITY; DIMENSION GROUPS; ORBIT EQUIVALENCE; DYNAMICAL-SYSTEMS;
FLOWS; PRODUCTS
AB We consider Bratteli diagrams of finite rank (not necessarily simple) and ergodic invariant measures with respect to the cofinal equivalence relation on their path spaces. It is shown that every ergodic invariant measure (finite or "regular" infinite) is obtained by an extension from a simple subdiagram. We further investigate quantitative properties of these measures, which are mainly determined by the asymptotic behavior of products of incidence matrices. A number of sufficient conditions for unique ergodicity are obtained. One of these is a condition of exact finite rank, which parallels a similar notion in measurable dynamics. Several examples illustrate the broad range of possible behavior of finite rank diagrams and invariant measures on them. We then prove that the Vershik map on the path space of an exact finite rank diagram cannot be strongly mixing, independent of the ordering. On the other hand, for the so-called "consecutive" ordering, the Vershik map is not strongly mixing on all finite rank diagrams.
C1 [Bezuglyi, S.] Natl Acad Sci Ukraine, Inst Low Temp Phys, Kharkov, Ukraine.
[Kwiatkowski, J.] Univ Warmia & Mazury, Dept Math, PL-10719 Olsztyn, Poland.
[Medynets, K.] US Naval Acad, Dept Math, Annapolis, MD 21402 USA.
[Solomyak, B.] Univ Washington, Dept Math, Seattle, WA 98195 USA.
RP Bezuglyi, S (reprint author), Natl Acad Sci Ukraine, Inst Low Temp Phys, Kharkov, Ukraine.
EM bezuglyi@ilt.kharkov.ua; jkwiat@mat.uni.torun.pl; medynets@usna.edu;
solomyak@math.washington.edu
FU MNiSzW N [N201384834]; NSF [DMS-0654408, DMS-0968879]; Erwin Schrodinger
International Institute for Mathematical Physics in Vienna
FX The research of the second author was supported by grant MNiSzW N
N201384834.; The fourth author was supported in part by NSF grants
DMS-0654408 and DMS-0968879.; This work was done during our visits to
the University of Oregon, University of Washington, University of Warmia
and Mazury, and Institute for Low Temperature Physics. We are thankful
to these institutions for the hospitality and support. The third-named
author is also grateful to the Erwin Schrodinger International Institute
for Mathematical Physics in Vienna for its hospitality and support of
the present work. We would also like to thank Karl Petersen for useful
discussions and Sebastien Ferenczi for sending us a copy of [Ro84]. We
are thankful to the referee for valuable suggestions.
NR 45
TC 10
Z9 10
U1 0
U2 2
PU AMER MATHEMATICAL SOC
PI PROVIDENCE
PA 201 CHARLES ST, PROVIDENCE, RI 02940-2213 USA
SN 0002-9947
EI 1088-6850
J9 T AM MATH SOC
JI Trans. Am. Math. Soc.
PD MAY
PY 2013
VL 365
IS 5
BP 2637
EP 2679
AR PII S0002-9947(2012)05744-8
PG 43
WC Mathematics
SC Mathematics
GA 247AR
UT WOS:000326585500015
ER
PT J
AU Nichols, JW
Lele, SK
Ham, FE
Martens, S
Spyropoulos, JT
AF Nichols, Joseph W.
Lele, Sanjiva K.
Ham, Frank E.
Martens, Steve
Spyropoulos, John T.
TI Crackle Noise in Heated Supersonic Jets
SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE
ASME
LA English
DT Article
ID SIMULATION
AB Crackle noise from heated supersonic jets is characterized by the presence of strong positive pressure impulses resulting in a strongly skewed far-field pressure signal. These strong positive pressure impulses are associated with N-shaped waveforms involving a shocklike compression and, thus, is very annoying to observers when it occurs. Unlike broadband shock-associated noise which dominates at upstream angles, crackle reaches a maximum at downstream angles associated with the peak jet noise directivity. Recent experiments (Martens et al., 2011, "The Effect of Chevrons on Crackle-Engine and Scale Model Results," Proceedings of the ASME Turbo Expo, Paper No. GT2011-46417) have shown that the addition of chevrons to the nozzle lip can significantly reduce crackle, especially in full-scale high-power tests. Because of these observations, it was conjectured that crackle is associated with coherent large scale flow structures produced by the baseline nozzle and that the formation of these structures are interrupted by the presence of the chevrons, which leads to noise reduction. In particular, shocklets attached to large eddies are postulated as a possible aerodynamic mechanism for the formation of crackle. In this paper, we test this hypothesis through a high-fidelity large-eddy simulation (LES) of a hot supersonic jet of Mach number 1.56 and a total temperature ratio of 3.65. We use the LES solver CHARLES developed by Cascade Technologies, Inc., to capture the turbulent jet plume on fully-unstructured meshes.
C1 [Nichols, Joseph W.; Lele, Sanjiva K.] Stanford Univ, Ctr Turbulence Res, Stanford, CA 94305 USA.
[Ham, Frank E.] Cascade Technol Inc, Palo Alto, CA 94303 USA.
[Martens, Steve] GE Aviat, Cincinnati, OH 45215 USA.
[Spyropoulos, John T.] Naval Air Syst Command, Patuxent River, MD 20670 USA.
RP Nichols, JW (reprint author), Stanford Univ, Ctr Turbulence Res, Stanford, CA 94305 USA.
EM jwn@stanford.edu
NR 13
TC 6
Z9 6
U1 0
U2 5
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 MAY
PY 2013
VL 135
IS 5
AR 051202
DI 10.1115/1.4007867
PG 7
WC Engineering, Mechanical
SC Engineering
GA 241GK
UT WOS:000326154200002
ER
PT J
AU Winterstein, SR
MacKenzie, CA
AF Winterstein, Steven R.
MacKenzie, Cameron A.
TI Extremes of Nonlinear Vibration: Comparing Models Based on Moments,
L-Moments, and Maximum Entropy
SO JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE
ASME
LA English
DT Article
ID LINEAR-SYSTEMS
AB Wind and wave loads on offshore structures show nonlinear effects, which require non-Gaussian statistical models. Here we critically review the behavior of various non-Gaussian models. We first survey moment-based models; in particular, the four-moment "Hermite" model, a cubic transformation often used in wind and wave applications. We then derive an "L-Hermite" model, an alternative cubic transformation calibrated by the response "L-moments" rather than its ordinary statistical moments. These L-moments have recently found increasing use, in part because they show less sensitivity to distribution tails than ordinary moments. We find here, however, that these L-moments may not convey sufficient information to accurately estimate extreme response statistics. Finally, we show that four-moment maximum entropy models, also applied in the literature, may be inappropriate to model broader-than-Gaussian cases (e. g., responses to wind and wave loads).
C1 [Winterstein, Steven R.] Probabil Based Engn, Menlo Pk, CA USA.
[MacKenzie, Cameron A.] Naval Postgrad Sch, Monterey, CA USA.
RP Winterstein, SR (reprint author), Probabil Based Engn, Menlo Pk, CA USA.
EM SteveWinterstein@alum.mit.edu; cmackenzie@ou.edu
NR 14
TC 5
Z9 5
U1 0
U2 5
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0892-7219
EI 1528-896X
J9 J OFFSHORE MECH ARCT
JI J. Offshore Mech. Arct. Eng. Trans. ASME
PD MAY
PY 2013
VL 135
IS 2
AR 021602
DI 10.1115/1.4007050
PG 7
WC Engineering, Ocean; Engineering, Mechanical
SC Engineering
GA 240QJ
UT WOS:000326111700010
ER
PT J
AU Moore, EZ
Murphy, KD
Nichols, JM
AF Moore, Edward Z.
Murphy, Kevin D.
Nichols, Jonathan M.
TI Optimized sensor placement for damage parameter estimation: Experimental
results for a cracked plate
SO STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
LA English
DT Article
DE Bayesian statistics; plate vibration; crack identification; sensor
optimization; experimental
ID STRUCTURAL DAMAGE; INFORMATION; IDENTIFICATION; VIBRATION; LOCATION
AB In this article, the optimum sensor and impact locations, for use in a damage identification experiment, are obtained using a hybrid genetic algorithm/steepest descent optimization method. Specifically, data from these optimum locations are used to identify the location, orientation, and size of a crack (termed the crack parameters) in a rectangular plate. The strain gage locations and orientations were selected in order (a) to maximize the difference between the model signal for a healthy plate and the model signal for a randomly damaged plate and (b) to minimize the cross-correlation among the signals measured by each of the gages. The latter requirement, in a sense, maximizes the uniqueness of the information measured from each sensor. The Bayesian model-based structural health monitoring identification technique, used to assess the crack parameters, was previously shown to be successful even for arbitrary sensor location/orientation and excitation location. It is shown here that thoughtful (optimized) sensor and excitation locations allow for improved estimates of the crack parameters. However, there is no substantial change in the width of the confidence intervals associated with these estimates.
C1 [Moore, Edward Z.; Murphy, Kevin D.] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA.
[Nichols, Jonathan M.] Naval Res Lab, Washington, DC USA.
RP Murphy, KD (reprint author), Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA.
EM kdm@engr.uconn.edu
FU Office of Naval Research [N00014-10-WX-2-0147, N00014-09-1-0616]
FX The authors gratefully acknowledge the financial support of the Office
of Naval Research under contracts N00014-10-WX-2-0147 and
N00014-09-1-0616.
NR 27
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Z9 6
U1 3
U2 12
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 MAY
PY 2013
VL 12
IS 3
BP 197
EP 206
DI 10.1177/1475921713476330
PG 10
WC Engineering, Multidisciplinary; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA 236QC
UT WOS:000325813100002
ER
PT J
AU Chang, YC
Chen, GY
Tseng, RS
Centurioni, LR
Chu, PC
AF Chang, Yu-Chia
Chen, Guan-Yu
Tseng, Ruo-Shan
Centurioni, Luca R.
Chu, Peter C.
TI Observed near-surface flows under all tropical cyclone intensity levels
using drifters in the northwestern Pacific
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
DE SVP drifter; tropical cyclones; translation speed; near-surface velocity
ID OCEAN CURRENT RESPONSE; SOUTH CHINA SEA; MIXED-LAYER; INERTIAL MOTIONS;
ENERGY FLUX; HURRICANES KATRINA; INTERNAL WAVES; MOVING STORM; WIND;
CURRENTS
AB Data from drifters of the surface velocity program and tropical cyclones (TCs) of the Joint Typhoon Warning Center during 1985-2009 were analyzed to demonstrate strong currents under various storm intensities such as category-4 to -5, category-2 to -3, and tropical storm to category-1 TCs in the northwestern Pacific. Current speeds over 2.0 m s(-1) are observed under major TCs with the strongest mean currents to the right of the storm track. This study provides the characterization of the near-surface velocity response to all recorded TCs, and agrees roughly with Geisler's theory (1970). Our observations also verify earlier modeling results of Price (1983).
C1 [Chang, Yu-Chia; Chen, Guan-Yu; Tseng, Ruo-Shan] Natl Sun Yat Sen Univ, Inst Appl Marine Phys & Undersea Technol, Kaohsiung 804, Taiwan.
[Chang, Yu-Chia; Chen, Guan-Yu; Tseng, Ruo-Shan] Natl Sun Yat Sen Univ, Asia Pacific Ocean Res Ctr, Kaohsiung 804, Taiwan.
[Centurioni, Luca R.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Chu, Peter C.] Naval Postgrad Sch, Dept Oceanog, Naval Ocean Anal & Predict Lab, Monterey, CA USA.
RP Chen, GY (reprint author), Natl Sun Yat Sen Univ, Inst Appl Marine Phys & Undersea Technol, Kaohsiung 804, Taiwan.
EM guanyu@faculty.nsysu.edu.tw
FU Aim for the Top University Plan from the Ministry of Education
[00C030200]; National Science Council of Taiwan, Republic of China
[NSC100-2611-M-110-004]; Naval Oceanographic Office
FX This research was completed with grants from Aim for the Top University
Plan from the Ministry of Education (00C030200) and National Science
Council (NSC100-2611-M-110-004) of Taiwan, Republic of China. P.C.C. was
supported by the Naval Oceanographic Office. We are grateful for the
comments of two anonymous reviewers.
NR 51
TC 4
Z9 4
U1 2
U2 13
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9275
EI 2169-9291
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD MAY
PY 2013
VL 118
IS 5
BP 2367
EP 2377
DI 10.1002/jgrc.20187
PG 11
WC Oceanography
SC Oceanography
GA 224TZ
UT WOS:000324913700009
ER
PT J
AU Holman, R
Plant, N
Holland, T
AF Holman, Rob
Plant, Nathaniel
Holland, Todd
TI cBathy: A robust algorithm for estimating nearshore bathymetry
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
DE nearshore processes; Argus; bathymetry
ID COASTAL ZONE; IMAGERY; RETRIEVALS; DISPERSION
AB A three-part algorithm is described and tested to provide robust bathymetry maps based solely on long time series observations of surface wave motions. The first phase consists of frequency-dependent characterization of the wave field in which dominant frequencies are estimated by Fourier transform while corresponding wave numbers are derived from spatial gradients in cross-spectral phase over analysis tiles that can be small, allowing high-spatial resolution. Coherent spatial structures at each frequency are extracted by frequency-dependent empirical orthogonal function (EOF). In phase two, depths are found that best fit weighted sets of frequency-wave number pairs. These are subsequently smoothed in time in phase 3 using a Kalman filter that fills gaps in coverage and objectively averages new estimates of variable quality with prior estimates. Objective confidence intervals are returned. Tests at Duck, NC, using 16 surveys collected over 2 years showed a bias and root-mean-square (RMS) error of 0.19 and 0.51 m, respectively but were largest near the offshore limits of analysis (roughly 500m from the camera) and near the steep shoreline where analysis tiles mix information from waves, swash and static dry sand. Performance was excellent for small waves but degraded somewhat with increasing wave height. Sand bars and their small-scale alongshore variability were well resolved. A single ground truth survey from a dissipative, low-sloping beach (Agate Beach, OR) showed similar errors over a region that extended several kilometers from the camera and reached depths of 14 m. Vector wave number estimates can also be incorporated into data assimilation models of nearshore dynamics.
C1 [Holman, Rob] Oregon State Univ, CEOAS, Corvallis, OR 97331 USA.
[Plant, Nathaniel] USGS, Coastal & Marine Sci Ctr, St Petersburg, FL USA.
[Holland, Todd] NRL, Stennis Space Ctr, MS USA.
RP Holland, T (reprint author), Oregon State Univ, CEOAS, 104 Ocean Admin Bldg, Corvallis, OR 97331 USA.
EM holman@coas.oregonstate.edu
RI Holland, K. Todd/A-7673-2011;
OI Holland, K. Todd/0000-0002-4601-6097; Plant,
Nathaniel/0000-0002-5703-5672
FU ONR Littoral Geosciences and Optics program [N00014-11-10393]; Multi
University Research Initiative [N00014-10-1-0932]; Office of Naval
Research
FX We would like to thank John Stanley for all the work that keeps Argus
alive and productive and for the production cBathy analysis discussed
here. Many thanks to Gabriel Garcia for guiding me through my first
experience writing in Lyx. Thanks also to the Jesse McNinch and the
staff of the FRF for restarting CRAB surveys and for providing the Duck
survey data used here, and to Diana Di Leonardo and Peter Ruggiero for
supplying analyzed jet ski survey data for Agate beach. We are grateful
for the support of the ONR Littoral Geosciences and Optics program,
grant N00014-11-10393 and the Multi University Research Initiative,
grant number N00014-10-1-0932. NRL was supported by the Office of Naval
Research through funding of the rapid transition project "Estimation of
surf zone bathymetry using Unmanned Aircraft Systems."
NR 26
TC 21
Z9 21
U1 1
U2 16
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9275
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD MAY
PY 2013
VL 118
IS 5
BP 2595
EP 2609
DI 10.1002/jgrc.20199
PG 15
WC Oceanography
SC Oceanography
GA 224TZ
UT WOS:000324913700024
ER
PT J
AU Connaughton, V
Briggs, MS
Xiong, SL
Dwyer, JR
Hutchins, ML
Grove, JE
Chekhtman, A
Tierney, D
Fitzpatrick, G
Foley, S
McBreen, S
Bhat, PN
Chaplin, VL
Cramer, E
Fishman, GJ
Holzworth, RH
Gibby, M
von Kienlin, A
Meegan, CA
Paciesas, WS
Preece, RD
Wilson-Hodge, C
AF Connaughton, Valerie
Briggs, Michael S.
Xiong, Shaolin
Dwyer, Joseph R.
Hutchins, Michael L.
Grove, J. Eric
Chekhtman, Alexandre
Tierney, Dave
Fitzpatrick, Gerard
Foley, Suzanne
McBreen, Shelia
Bhat, P. N.
Chaplin, Vandiver L.
Cramer, Eric
Fishman, Gerald J.
Holzworth, Robert H.
Gibby, Melissa
von Kienlin, Andreas
Meegan, Charles A.
Paciesas, William S.
Preece, Robert D.
Wilson-Hodge, Colleen
TI Radio signals from electron beams in terrestrial gamma ray flashes
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
DE gamma-ray; lightning; radio; Fermi GBM; WWLLN
ID LIGHTNING LOCATION NETWORK
AB We show that the rate of association between terrestrial gamma ray flashes (TGFs) observed by the Fermi gamma ray burst monitor and VLF discharges detected by the World Wide Lightning Location Network (WWLLN) depends strongly on the duration of the TGF, with the shortest TGFs having associated WWLLN events over 50% of the time, and the longest TGFs showing a less than 10% match rate. This correlation is stronger if one excludes the WWLLN discharges that are not simultaneous (within 200 mu s) with the TGF. We infer that the simultaneous VLF discharges are from the relativistic electron avalanches that are responsible for the flash of gamma rays and the nonsimultaneous VLF discharges are from related intracloud lightning strokes. The distributions of far-field radiated VLF stroke energy measured by WWLLN for the simultaneous and nonsimultaneous discharges support the hypothesis of two discrete populations of VLF signals associated with TGFs, with the simultaneous discharges among the strongest measured by WWLLN.
C1 [Connaughton, Valerie; Briggs, Michael S.; Xiong, Shaolin; Bhat, P. N.; Chaplin, Vandiver L.; Preece, Robert D.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Connaughton, Valerie; Briggs, Michael S.; Preece, Robert D.] Univ Alabama, Dept Phys, Huntsville, AL 35899 USA.
[Dwyer, Joseph R.; Cramer, Eric] Florida Inst Technol, Melbourne, FL 32901 USA.
[Hutchins, Michael L.; Holzworth, Robert H.] Univ Washington, Seattle, WA 98195 USA.
[Grove, J. Eric] US Naval Res Lab, Space Sci Div, Washington, DC USA.
[Chekhtman, Alexandre] George Mason Univ, Fairfax, VA 22030 USA.
[Tierney, Dave; Fitzpatrick, Gerard; Foley, Suzanne; McBreen, Shelia] Univ Coll Dublin, Dublin 4, Ireland.
[Fishman, Gerald J.; Gibby, Melissa] Jacobs Engn Grp Inc, Huntsville, AL USA.
[von Kienlin, Andreas] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Meegan, Charles A.; Paciesas, William S.] NASA, George C Marshall Space Flight Ctr, Univ Space Res Assoc, Huntsville, AL 35812 USA.
[Wilson-Hodge, Colleen] NASA, George C Marshall Space Flight Ctr, Space Sci Off, Huntsville, AL 35812 USA.
RP Connaughton, V (reprint author), Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
EM connauv@uah.edu
OI Preece, Robert/0000-0003-1626-7335
FU National Aeronautics and Space Administration (NASA) in the United
States; Bundesministerium fur Wirtschaft und Technologie (BMWi) /
Deutsches Zentrum fur Luft und Raumfahrt (DLR) in Germany; NASA's Fermi
Guest Investigator Program; DARPA [HR0011-10-1-0061]; Science Foundation
Ireland [09-RFP-AST-2400]; Irish Research Council for Science,
Engineering and Technology; Marie Curie Actions under FP7
FX The Fermi GBM Collaboration acknowledges support for GBM development,
operations, and data analysis from National Aeronautics and Space
Administration (NASA) in the United States and from the
Bundesministerium fur Wirtschaft und Technologie (BMWi) / Deutsches
Zentrum fur Luft und Raumfahrt (DLR) in Germany. This work was supported
in part by NASA's Fermi Guest Investigator Program and by DARPA grant
HR0011-10-1-0061. D. T. acknowledges support from Science Foundation
Ireland under grant number 09-RFP-AST-2400. S. F. and G. F. acknowledge
the support of the Irish Research Council for Science, Engineering and
Technology; S. F. is cofunded by Marie Curie Actions under FP7. The
authors wish to thank the World Wide Lightning Location Network
(http://wwlln.net), a collaboration among over 50 universities and
institutions, for providing the lightning location data used in this
paper. We appreciate the freely-available Coyote resources for IDL
programming, which helped generate all the histograms in this paper
(http://www.idlcoyote.com/). We thank Nikolai Ostgaard and an anonymous
reviewer for helpful suggestions during the refereeing process.
NR 40
TC 23
Z9 23
U1 1
U2 10
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9380
J9 J GEOPHYS RES-SPACE
JI J. Geophys. Res-Space Phys.
PD MAY
PY 2013
VL 118
IS 5
BP 2313
EP 2320
DI 10.1029/2012JA018288
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 228UF
UT WOS:000325215800042
ER
PT J
AU Lu, G
Huba, JD
Valladares, C
AF Lu, G.
Huba, J. D.
Valladares, Cesar
TI Modeling ionospheric super-fountain effect based on the coupled
TIMEGCM-SAMI3
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
DE Super-fountain effect; geomagnetic storm; ionospheric storm effect;
ionospheric modeling
ID NOVEMBER 2004 SUPERSTORM; LATENT-HEAT RELEASE; LATITUDE IONOSPHERE;
F-REGION; EQUATORIAL; ATMOSPHERE; STORM; ELECTRODYNAMICS; PERIOD; TIDES
AB Recently, efforts have been undertaken to develop a coupled thermosphere-ionosphere-plasmasphere model based on two well-established models, namely, the Thermosphere-Ionosphere-Mesosphere General Circulation Model (TIMEGCM) developed at the National Center for Atmospheric Research and the SAMI3 ionosphere model developed at the Naval Research Laboratory. This paper presents the first results from the coupled model on the investigation of a prompt penetration electric field (PPEF) event that took place on 9 November 2004. The coupled model eliminates two major upper boundary limitations of the stand-alone TIMEGCM, e.g., the upper boundary height and the prescribed O+ fluxes at the upper boundary. It is found that the F-layer peak height is raised above 800 km in response to the large PPEF. The O+ fluxes in the top ionosphere vary drastically during the course of the PPEF, with strong upward and downward fluxes with a magnitude greater than 10(9) cm(-2) s(-1) in localized regions. For the first time, the coupled model allows us to simulate and visualize the super-fountain effect on a global scale. Future model development is also envisaged, including the implementation of a more realistic magnetic field model and a fully two-way coupling between neutrals and ions.
C1 [Lu, G.] Natl Ctr Atmospher Res, High Altitude Observ, Boulder, CO 80307 USA.
[Huba, J. D.] Naval Res Lab, Div Plasma Phys, Washington, DC USA.
[Valladares, Cesar] Boston Coll, Boston, MA USA.
RP Lu, G (reprint author), Natl Ctr Atmospher Res, High Altitude Observ, Pob 3000, Boulder, CO 80307 USA.
EM ganglu@ucar.edu
RI Lu, Gang/A-6669-2011
FU NASA's Heliophysics Guest Investigators Program [NNH09AK621]; USPI-GOCE
project from CU-Boulder [1549222]; NSF; NASA; NRL base funds; Air Force
Research Laboratory [FA8718-09-C-0041]; NSF [ATM-1135675]
FX The Jicamarca Radio Observatory is operated by the Instituto Geophysico
del Peru. The work of GL was supported in part by NASA's Heliophysics
Guest Investigators Program under grant NNH09AK621 and the USPI-GOCE
project under subcontract 1549222 from CU-Boulder. NCAR is sponsored by
the NSF. The research of JDH was supported by a NASA LWS grant and NRL
base funds. CV was partially supported by Air Force Research Laboratory
contract FA8718-09-C-0041 and NSF Grant ATM-1135675. Low Latitude
Ionospheric Sensor Network (LISN) is a project led by Boston College in
collaboration with the Geophysical Institute of Peru, and other
institutions that provide information in benefit of the scientific
community. We thank Art Richmond for helpful discussions and comments on
the manuscript, and Mike Nicolls for the Jicamarca radar data.
NR 39
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U1 1
U2 7
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9380
EI 2169-9402
J9 J GEOPHYS RES-SPACE
JI J. Geophys. Res-Space Phys.
PD MAY
PY 2013
VL 118
IS 5
BP 2527
EP 2535
DI 10.1002/jgra.50256
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 228UF
UT WOS:000325215800061
ER
PT J
AU Bazylinski, DA
Williams, TJ
Lefevre, CT
Trubitsyn, D
Fang, JS
Beveridge, TJ
Moskowitz, BM
Ward, B
Schubbe, S
Dubbels, BL
Simpson, B
AF Bazylinski, Dennis A.
Williams, Timothy J.
Lefevre, Christopher T.
Trubitsyn, Denis
Fang, Jiasong
Beveridge, Terrence J.
Moskowitz, Bruce M.
Ward, Bruce
Schuebbe, Sabrina
Dubbels, Bradley L.
Simpson, Brian
TI Magnetovibrio blakemorei gen. nov., sp nov., a magnetotactic bacterium
(Alphaproteobacteria: Rhodospirillaceae) isolated from a salt marsh
SO INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
LA English
DT Article
ID SULFATE-REDUCING BACTERIUM; AQUASPIRILLUM-MAGNETOTACTICUM;
DEOXYRIBONUCLEIC-ACID; MAGNETITE FORMATION; NITROGEN-FIXATION; MARINE;
SPIRILLUM; REDUCTION; IRON; SEA
AB A magnetotactic bacterium, designated strain MV-1(T), was isolated from sulfide-rich sediments in a salt marsh near Boston, MA, USA. Cells of strain MV-1(T) were Gram-negative, and vibrioid to helicoid in morphology. Cells were motile by means of a single polar flagellum. The cells appeared to display a transitional state between axial and polar magnetotaxis: cells swam in both directions, but generally had longer excursions in one direction than the other. Cells possessed a single chain of magnetosomes containing truncated hexaoctahedral crystals of magnetite, positioned along the long axis of the cell. Strain MV-1(T) was a microaerophile that was also capable of anaerobic growth on some nitrogen oxides. Salinities greater than 10% seawater were required for growth. Strain MV-1(T) exhibited chemolithoautotrophic growth on thiosulfate and sulfide with oxygen as the terminal electron acceptor (microaerobic growth) and on thiosulfate using nitrous oxide (N2O) as the terminal electron acceptor (anaerobic growth). Chemo-organoautotrophic and methylotrophic growth was supported by formate under microaerobic conditions. Autotrophic growth occurred via the Calvin-Benson-Bassham cycle. Chemo-organoheterotrophic growth was supported by various organic acids and amino acids, under microaerobic and anaerobic conditions. Optimal growth occurred at pH 7.0 and 26-28 degrees C. The genome of strain MV-1(T) consisted of a single, circular chromosome, about 3.7 Mb in size, with a G+C content of 52.9-53.5 molok. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain MV-1(T) belongs to the family Rhodospirillaceae within the Alphaproteobacteria, but is not closely related to the genus Magnetospirillum. The name Magnetovibrio blakemorei gen. nov., sp. nov. is proposed for strain MV-1(T). The type strain of Magnetovibrio blakemorei is MV-1(T) (=ATCC BAA-1436(T) =DSM 18854(T)).
C1 [Bazylinski, Dennis A.; Trubitsyn, Denis; Schuebbe, Sabrina] Univ Nevada, Sch Life Sci, Las Vegas, NV 89154 USA.
[Williams, Timothy J.] Univ New S Wales, Sch Biotechnol & Biomol Sci, Sydney, NSW 2052, Australia.
[Lefevre, Christopher T.] Aix Marseille Univ, CEA Cadarache, CNRS,Lab Bioenerget Cellulaire, UMR7265,Serv Biol Vegetale & Microbiol Environm, F-13108 St Paul Les Durance, France.
[Fang, Jiasong] Hawaii Pacific Univ, Dept Nat Sci, Kaneohe, HI 96744 USA.
[Beveridge, Terrence J.] Univ Guelph, Coll Biol Sci, Dept Mol & Cellular Biol, Guelph, ON N1G 2W1, Canada.
[Moskowitz, Bruce M.] Univ Minnesota Twin Cities, Dept Earth Sci, Inst Rock Magnetism, Minneapolis, MN 55455 USA.
[Ward, Bruce] Univ Edinburgh, Sch Biol Sci, Inst Cell Biol, Edinburgh EH9 3JR, Midlothian, Scotland.
[Dubbels, Bradley L.] Life Technol Corp, Eugene, OR 97402 USA.
[Simpson, Brian] USN, San Diego, CA 92135 USA.
RP Bazylinski, DA (reprint author), Univ Nevada, Sch Life Sci, 4505 Maryland Pkwy, Las Vegas, NV 89154 USA.
EM dennis.bazylinski@unlv.edu
RI Lefevre, Christopher/H-6072-2013
FU US National Science Foundation (NSF) [EAR-0920718]; Fondation pour la
Recherche Medicale [FRM: SPF20101220993]; French national research
agency ANR-P2N; Instruments and Facilities Program, Division of Earth
Science, NSF
FX This work was supported by US National Science Foundation (NSF) grant
EAR-0920718 to D. A. B. C. T. L. was the recipient of an award from the
Fondation pour la Recherche Medicale (FRM: SPF20101220993) and funded by
the French national research agency ANR-P2N entitled MEFISTO. We thank
A. Lopez-Lopez for providing us with a culture of Thalassospira
lucentensis QMT2T. Magnetic measurements were performed at
the Institute for Rock Magnetism, which is supported by grants from the
Instruments and Facilities Program, Division of Earth Science, NSF. This
is publication 1202 of the Institute for Rock Magnetism.
NR 48
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U1 3
U2 29
PU SOC GENERAL MICROBIOLOGY
PI READING
PA MARLBOROUGH HOUSE, BASINGSTOKE RD, SPENCERS WOODS, READING RG7 1AG,
BERKS, ENGLAND
SN 1466-5026
J9 INT J SYST EVOL MICR
JI Int. J. Syst. Evol. Microbiol.
PD MAY
PY 2013
VL 63
BP 1824
EP 1833
DI 10.1099/ijs.0.044453-0
PN 5
PG 10
WC Microbiology
SC Microbiology
GA 168XM
UT WOS:000320741200040
PM 22984137
ER
PT J
AU Hoang, TD
Kremp, AN
Daily, JG
Galitz, MS
AF Hoang, Thanh D.
Kremp, Allan N.
Daily, Jason G.
Galitz, Michael S.
TI What is the diagnosis? Transient hyperthyroidism in gestational
trophoblastic neoplasia
SO ENDOCRINE PRACTICE
LA English
DT Editorial Material
C1 [Hoang, Thanh D.; Daily, Jason G.; Galitz, Michael S.] Naval Med Ctr Portsmouth, Dept Endocrinol, Portsmouth, VA 23708 USA.
[Kremp, Allan N.] Naval Med Ctr Portsmouth, Dept Pathol, Portsmouth, VA 23708 USA.
RP Hoang, TD (reprint author), Naval Med Ctr Portsmouth, Dept Endocrinol, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
EM thanh.hoang@med.navy.mil
NR 3
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSOC CLINICAL ENDOCRINOLOGISTS
PI JACKSONVILLE
PA 245 RIVERSIDE AVENUE, STE 200, JACKSONVILLE, FL 32202 USA
SN 1530-891X
J9 ENDOCR PRACT
JI Endocr. Pract.
PD MAY-JUN
PY 2013
VL 19
IS 3
BP 561
EP 561
DI 10.4158/EP12419.VV
PG 1
WC Endocrinology & Metabolism
SC Endocrinology & Metabolism
GA 175XM
UT WOS:000321267000029
PM 23337167
ER
PT J
AU Bettenhausen, MH
Adams, IS
AF Bettenhausen, Michael H.
Adams, Ian S.
TI The impact of passband characteristics on imaging microwave radiometer
brightness temperatures over the ocean
SO RADIO SCIENCE
LA English
DT Article
DE microwave; radiative transfer; frequency passband; brightness
temperature; ocean
ID RADIATIVE-TRANSFER MODEL; ATMOSPHERIC TRANSMITTANCE; RADIANCE
OBSERVATIONS; ASSIMILATION; ALGORITHM; CHANNELS
AB Radiative transfer modeling is used to estimate the effects of nonideal receiver frequency passband characteristics on the measured brightness temperatures from imaging microwave radiometers over the ocean. The analysis includes microwave frequencies from 6 to 40GHz and applies to the lower frequency channels of conically scanning, space-based radiometers such as AMSR-E, SSMI, SSMIS, and WindSat. The analysis demonstrates that frequency passband characteristics can have significant effects on the brightness temperatures for microwave imaging channels. The largest effects are due to shifts in the center frequency of the passband. The imaging channels near the water vapor resonance at 22.235GHz are most sensitive to passband characteristics. The effects for these channels depend on the water vapor in the scene.
C1 [Bettenhausen, Michael H.; Adams, Ian S.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Bettenhausen, MH (reprint author), USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM bettenhausen@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 17
TC 0
Z9 0
U1 0
U2 2
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0048-6604
J9 RADIO SCI
JI Radio Sci.
PD MAY
PY 2013
VL 48
IS 3
BP 352
EP 357
DI 10.1002/rds.20041
PG 6
WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
GA 183NS
UT WOS:000321823700016
ER
PT J
AU Henderson, DR
AF Henderson, David R.
TI Why Milton Friedman Was Rare
SO ECON JOURNAL WATCH
LA English
DT Article
C1 Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Henderson, DR (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA.
EM drhender@nps.edu
NR 7
TC 1
Z9 1
U1 0
U2 8
PU INST SPONTANEOUS ORDER ECONOMICS
PI FAIRFAX
PA 9745 KINGS CROWN COURT #102, FAIRFAX, VA 22031 USA
SN 1933-527X
J9 ECON J WATCH
JI Econ. J. Watch
PD MAY
PY 2013
VL 10
IS 2
BP 189
EP 194
PG 6
WC Economics
SC Business & Economics
GA 172ZK
UT WOS:000321046500009
ER
PT J
AU Sletten, MA
AF Sletten, Mark A.
TI Demonstration of SAR Distortion Correction Using a Ground-Based
Multichannel SAR Test Bed
SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
LA English
DT Article
DE Synthetic aperture radar; radar imaging
ID SYNTHETIC-APERTURE RADAR; ARRAY IMAGING RADAR; SEA-SURFACE; SYSTEM;
WAVES; VSAR; TIME
AB In this paper, a ground-based phased-array radar is used to investigate the ability of a multichannel synthetic aperture radar (MSAR) to produce high-fidelity images of dynamic ocean scenes by correcting the distortions caused by the motion of the water surface itself. The ground-based system, the Naval Research Laboratory Focused Phased Array Imaging Radar (FOPAIR), mimics an MSAR with multiple apertures arrayed in the flight direction by rapidly and repeatedly scanning across a linear array of 64 antenna elements. This generates a virtually unlimited time stack of coherent images in the same way that an airborne MSAR generates multiple images as the antennas fly past the scene. By manipulating a single FOPAIR data set, both undistorted "benchmark" imagery and distorted images corresponding to an airborne MSAR can be generated. More significantly, the time stack of emulated MSAR images can be processed further using the velocity synthetic aperture radar (VSAR) technique to significantly reduce the well-known but seemingly unavoidable distortions caused by surface wave motion. In this paper, VSAR is demonstrated experimentally for the first time using FOPAIR imagery of a small boat. MSAR systems with a wide range of aperture numbers are emulated, including the special case of a two-aperture system, commonly known as an along-track interferometric SAR. The results emphasize that VSAR processing does not require a long surface coherence time to produce fine-resolution imagery, unlike a single-channel SAR. The results also illustrate some limitations of VSAR as a means to measure velocity and produce high-fidelity imagery of dynamic ocean scenes.
C1 Naval Res Lab, Washington, DC 20375 USA.
RP Sletten, MA (reprint author), Naval Res Lab, Code 7264, Washington, DC 20375 USA.
NR 26
TC 8
Z9 8
U1 0
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0196-2892
J9 IEEE T GEOSCI REMOTE
JI IEEE Trans. Geosci. Remote Sensing
PD MAY
PY 2013
VL 51
IS 5
BP 3181
EP 3190
DI 10.1109/TGRS.2012.2212710
PN 2
PG 10
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA 171OY
UT WOS:000320940000022
ER
PT J
AU Gonzalez, DR
Wallman, P
Sanford, M
Monat, J
Carney, J
AF Gonzalez, David R.
Wallman, Paul
Sanford, Matthew
Monat, Jeremy
Carney, Joel
TI Characterization of Rocket-Plume Fluid-Dynamic Environment Using
Numerical and Experimental Approaches
SO JOURNAL OF SPACECRAFT AND ROCKETS
LA English
DT Article; Proceedings Paper
CT 50th AIAA Aerospace Sciences Meeting and Exhibit including the New
Horizons Forum and Aerospace Exposition
CY JAN 06-13, 2012
CL Nashville, TN
SP AIAA, US AF Off Sci Res
AB The fluid-dynamic environment in the plume of a specific rocket motor was characterized in the present study. Previously, a similar experimental study was conducted to collect pressure and temperature magnitudes at locations far downstream of the nozzle. The focus of this work was the characterization of the nozzle near field. To provide some flexibility for future analysis the primary goal was the development of a computational-fluid-dynamics model of the plume that could be probed for additional data of interest. To validate the model a series of experiments were conducted, some of which required custom hardware, to collect the pressure and temperature data at locations as close as 1.5 m from the nozzle. The predicted stagnation pressures were found to compare well with experimental results. To provide a measure of the temperature within the plume a multiwavelength pyrometer was used, and predicted results were also found to be in reasonable agreement.
C1 [Gonzalez, David R.; Sanford, Matthew] USN, Ctr Surface Warfare, Warhead & Prop Technol Branch, Indian Head, MD 20640 USA.
[Wallman, Paul] USN, Ctr Surface Warfare, Combust Technol Branch, Indian Head, MD 20640 USA.
[Monat, Jeremy; Carney, Joel] USN, Ctr Surface Warfare, Dynam & Diagnost Branch, Indian Head, MD 20640 USA.
RP Gonzalez, DR (reprint author), USN, Ctr Surface Warfare, Warhead & Prop Technol Branch, 4103 Fowler Rd,Bldg 302 Ste 107, Indian Head, MD 20640 USA.
NR 30
TC 0
Z9 0
U1 1
U2 4
PU AMER INST AERONAUTICS ASTRONAUTICS
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 0022-4650
J9 J SPACECRAFT ROCKETS
JI J. Spacecr. Rockets
PD MAY-JUN
PY 2013
VL 50
IS 3
BP 527
EP 539
DI 10.2514/1.A32319
PG 13
WC Engineering, Aerospace
SC Engineering
GA 160BM
UT WOS:000320091200005
ER
PT J
AU Blomberg, EC
Tanatar, MA
Fernandes, RM
Mazin, II
Shen, B
Wen, HH
Johannes, MD
Schmalian, J
Prozorov, R
AF Blomberg, E. C.
Tanatar, M. A.
Fernandes, R. M.
Mazin, I. I.
Shen, Bing
Wen, Hai-Hu
Johannes, M. D.
Schmalian, J.
Prozorov, R.
TI Sign-reversal of the in-plane resistivity anisotropy in hole-doped iron
pnictides
SO NATURE COMMUNICATIONS
LA English
DT Article
ID HIGH-TEMPERATURE SUPERCONDUCTIVITY; ELECTRONIC NEMATICITY; TRANSITION;
SCATTERING
AB Unconventional superconductivity usually originates from several strongly coupled degrees of freedom, such as magnetic, charge and elastic. A highly anisotropic electronic phase, not driven by lattice degrees of freedom, has been proposed in some of these superconductors, from cuprates to iron-based compounds. In the iron pnictide BaFe2As2, this nematic phase arises in the paramagnetic phase and is present for wide doping and temperature ranges. Here we probe the in-plane electronic anisotropy of electron-and hole-doped BaFe2As2 compounds. Unlike other materials, the resistivity anisotropy behaves very differently for electron- and hole-type dopants and even changes sign on the hole-doped side. This behaviour is explained by Fermi surface reconstruction in the magnetic phase and spin-fluctuation scattering in the paramagnetic phase. This unique transport anisotropy unveils the primary role played by magnetic scattering, demonstrating the close connection between magnetism, nematicity and unconventional superconductivity.
C1 [Blomberg, E. C.; Tanatar, M. A.; Prozorov, R.] Ames Lab, Ames, IA 50011 USA.
[Blomberg, E. C.; Tanatar, M. A.; Prozorov, R.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Fernandes, R. M.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
[Mazin, I. I.; Johannes, M. D.] Naval Res Lab, Washington, DC 20375 USA.
[Shen, Bing; Wen, Hai-Hu] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
[Shen, Bing; Wen, Hai-Hu] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China.
[Shen, Bing; Wen, Hai-Hu] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
[Schmalian, J.] Karlsruhe Inst Technol, Inst Theory Condensed Matter Phys, D-76131 Karlsruhe, Germany.
[Schmalian, J.] Karlsruhe Inst Technol, Ctr Funct Nanostructutes, D-76131 Karlsruhe, Germany.
RP Prozorov, R (reprint author), Ames Lab, Ames, IA 50011 USA.
EM prozorov@iastate.edu
RI Fernandes, Rafael/E-9273-2010; Schmalian, Joerg/H-2313-2011
FU US Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering [DE-AC02-07CH11358]; NSF of China;
Ministry of Science and Technology of China [2011CBA00102,
2012CB821403]; NSF Partnerships for International Research and Education
(PIRE) programme [OISE-0968226]
FX We thank A. V. Chubukov for useful comments, suggestions and critical
reading of the manuscript. R. M. F. and J.S. acknowledge useful
discussions with E. Abrahams. Work at The Ames Laboratory was supported
by the US Department of Energy, Office of Basic Energy Sciences,
Division of Materials Sciences and Engineering under contract no.
DE-AC02-07CH11358. The work in China was supported by the NSF of China,
the Ministry of Science and Technology of China (973 projects:
2011CBA00102, 2012CB821403). R. M. F. acknowledges the support of the
NSF Partnerships for International Research and Education (PIRE)
programme OISE-0968226.
NR 41
TC 47
Z9 47
U1 1
U2 71
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 MAY
PY 2013
VL 4
AR 1914
DI 10.1038/ncomms2933
PG 7
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 166WI
UT WOS:000320589900110
PM 23715273
ER
PT J
AU Washburn, A
AF Washburn, Alan
TI OR Forum - Blotto Politics
SO OPERATIONS RESEARCH
LA English
DT Article
ID LAGRANGE-MULTIPLIER METHOD; COLONEL-BLOTTO; RESOURCES; ELECTION;
ALLOCATION; GAMES; PLAY
AB This paper considers abstract election games motivated by the United States Electoral College. There are two political parties, and the electoral votes in each state go to the party that spends the most money there, with an adjustment for a "head start" that one party or the other may have in that state. The states have unequal numbers of electoral votes, and elections are decided by majority rules. Each party has a known budget, and much depends on the information that informs how that budget is spent. Three situations are considered: (1) one party's spending plan is known to the other, (2) spending is gradually revealed as the parties spend continuously in time, and (3) neither side knows anything about the other's spending. The last situation resembles a Blotto game, hence the title.
C1 Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Washburn, A (reprint author), Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
EM awashburn@nps.edu
NR 26
TC 0
Z9 0
U1 1
U2 11
PU INFORMS
PI HANOVER
PA 7240 PARKWAY DR, STE 310, HANOVER, MD 21076-1344 USA
SN 0030-364X
J9 OPER RES
JI Oper. Res.
PD MAY-JUN
PY 2013
VL 61
IS 3
BP 532
EP 543
DI 10.1287/opre.1120.1142
PG 12
WC Management; Operations Research & Management Science
SC Business & Economics; Operations Research & Management Science
GA 171EN
UT WOS:000320908000002
ER
PT J
AU Lin, KY
Atkinson, MR
Chung, TH
Glazebrook, KD
AF Lin, Kyle Y.
Atkinson, Michael R.
Chung, Timothy H.
Glazebrook, Kevin D.
TI A Graph Patrol Problem with Random Attack Times
SO OPERATIONS RESEARCH
LA English
DT Article
ID RESTLESS BANDITS; INDEX POLICIES; SEARCH GAMES; AMBUSH GAME; ALLOCATION;
MODEL
AB This paper presents a patrol problem, where a patroller traverses a graph through edges to detect potential attacks at nodes. To design a patrol policy, the patroller needs to take into account not only the graph structure, but also the different attack time distributions, as well as different costs incurred due to successful attacks, at different nodes. We consider both random attackers and strategic attackers. A random attacker chooses which node to attack according to a probability distribution known to the patroller. A strategic attacker plays a two-person zero-sum game with the patroller. For each case, we give an exact linear program to compute the optimal solution. Because the linear programs quickly become computationally intractable as the problem size grows, we develop index-based heuristics. In the random-attacker case, our heuristic is optimal when there are two nodes, and in a suitably chosen asymptotic regime. In the strategic-attacker case, our heuristic is optimal when there are two nodes if the attack times are deterministic taking integer values. In our numerical experiments, our heuristic typically achieves within 1% of optimality with computation time orders of magnitude less than what is required to compute the optimal policy.
C1 [Lin, Kyle Y.; Atkinson, Michael R.] Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
[Chung, Timothy H.] Naval Postgrad Sch, Dept Syst Engn, Monterey, CA 93943 USA.
[Glazebrook, Kevin D.] Univ Lancaster, Dept Management Sci, Sch Management, Lancaster LA1 4YX, England.
RP Lin, KY (reprint author), Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
EM kylin@nps.edu; mpatkiris@nps.edu; thchung@nps.edu;
kevin.glazebrook@ed.ac.uk
OI Lin, Kyle/0000-0002-3769-1891; Glazebrook, Kevin/0000-0002-5045-0718
FU Office of Naval Research
FX The authors are grateful to the three referees and the associate editor
for their valuable comments. This material is based upon work supported
by the Office of Naval Research.
NR 31
TC 8
Z9 8
U1 1
U2 13
PU INFORMS
PI HANOVER
PA 7240 PARKWAY DR, STE 310, HANOVER, MD 21076-1344 USA
SN 0030-364X
J9 OPER RES
JI Oper. Res.
PD MAY-JUN
PY 2013
VL 61
IS 3
BP 694
EP 710
DI 10.1287/opre.1120.1149
PG 17
WC Management; Operations Research & Management Science
SC Business & Economics; Operations Research & Management Science
GA 171EN
UT WOS:000320908000013
ER
PT J
AU Royset, JO
Szechtman, R
AF Royset, Johannes O.
Szechtman, Roberto
TI Optimal Budget Allocation for Sample Average Approximation
SO OPERATIONS RESEARCH
LA English
DT Article
ID SIMULATION OPTIMIZATION; STOCHASTIC OPTIMIZATION; BEHAVIOR
AB The sample average approximation approach to solving stochastic programs induces a sampling error, caused by replacing an expectation by a sample average, as well as an optimization error due to approximating the solution of the resulting sample average problem. We obtain estimators of an optimal solution and the optimal value of the original stochastic program after executing a finite number of iterations of an optimization algorithm applied to the sample average problem. We examine the convergence rate of the estimators as the computing budget tends to infinity, and we characterize the allocation policies that maximize the convergence rate in the case of sublinear, linear, and superlinear convergence regimes for the optimization algorithm.
C1 [Royset, Johannes O.; Szechtman, Roberto] Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Royset, JO (reprint author), Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
EM joroyset@nps.edu; rszechtm@nps.edu
FU Air Force Office of Scientific Research [F1ATAO1194GOO1]
FX The authors thank the area editor, associate editor, and referees for
their helpful suggestions. This work was supported by the Air Force
Office of Scientific Research [Grant F1ATAO1194GOO1].
NR 34
TC 8
Z9 8
U1 1
U2 13
PU INFORMS
PI CATONSVILLE
PA 5521 RESEARCH PARK DR, SUITE 200, CATONSVILLE, MD 21228 USA
SN 0030-364X
J9 OPER RES
JI Oper. Res.
PD MAY-JUN
PY 2013
VL 61
IS 3
BP 762
EP 776
DI 10.1287/opre.2013.1163
PG 15
WC Management; Operations Research & Management Science
SC Business & Economics; Operations Research & Management Science
GA 171EN
UT WOS:000320908000017
ER
PT J
AU Houser, DS
Martin, SW
Finneran, JJ
AF Houser, Dorian S.
Martin, Steve W.
Finneran, James J.
TI Exposure amplitude and repetition affect bottlenose dolphin behavioral
responses to simulated mid-frequency sonar signals
SO JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
LA English
DT Article
DE Acoustic exposure; Behavioral response; Bottlenose dolphin;
Dose-response; Sound
ID PORPOISES PHOCOENA-PHOCOENA; TURSIOPS-TRUNCATUS; BRITISH-COLUMBIA;
DOSE-RESPONSE; NOISE; SOUND; WHALES; ENVIRONMENT; CETACEANS; OBJECTS
AB Thirty bottlenose dolphins (Tursiops truncatus) participated in a controlled exposure study using an acoustic stimulus that consisted of a simulated tactical sonar signal (1-s duration, 3250-3450 Hz). Each dolphin was trained a behavior requiting it to swim across an enclosure, touch a paddle, and return to the starting location. Ten-trial control and exposure sessions were performed with each dolphin. Dolphins were placed into one of five groups, each of which received a 115, 130, 145, 160, 175 or 185 dB re 1 mu Pa (rms) sound pressure level (SPL) exposure while crossing the enclosure on exposure trials. A canonical correlation analysis was used to determine the set of behavioral responses most interrelated with the independent variables of exposure level, trial number, and age. Responses that significantly contributed to the canonical model were used to create dose-response functions based on the received SPL. Doe-response functions demonstrated a robust relationship between received SPL and the probability of response and indicated rapid habituation to repetitive exposures with received SPL <= 160 dB. No habituation was observed at received SPL >= 175 dB re 1 mu Pa and all dolphins refused to participate in trials when the received SPL = 185 dB re 1 mu Pa. Although bottlenose dolphins may rapidly habituate to sound exposures below a certain level, particularly if there is food motivation, abandonment of behaviors increases rapidly at received levels >= 175 dB re 1 mu Pa. 2013 Elsevier B.V. All rights reserved.
C1 [Houser, Dorian S.] Natl Marine Mammal Fdn, San Diego, CA 92071 USA.
[Martin, Steve W.; Finneran, James J.] USN, Marine Mammal Program, Space & Naval Warfare Syst Ctr Pacific, San Diego, CA 92152 USA.
RP Houser, DS (reprint author), Natl Marine Mammal Fdn, 2240 Shelter Isl Dr,Suite 200, San Diego, CA 92071 USA.
EM dorian.houser@nmmfoundation.org
OI Houser, Dorian/0000-0002-0960-8528
FU Office of Naval Research [N0001409WX20853]; Naval Operations Energy and
Environmental Readiness Division [N0002409WX11974]
FX The authors wish to thank all of the trainers within the MMP that
participated in the study and trained the behavior required for testing.
Special gratitude is extended to R. Dear, L Green, and M. Tormey for
serving as trainers during the sessions; R. Jauck and E. Bauer for
providing engineering support in the construction of the test enclosure;
and P. Banks and K. Bakhtiari for analyzing the control and exposure
trials for behavioral responses. Additional thanks are given to the
group of marine mammal experts that provided severity scores for the
list of anticipated behavioral responses. This study was funded by the
Office of Naval Research (award #N0001409WX20853) and the Chief of Naval
Operations Energy and Environmental Readiness Division (award
#N0002409WX11974). All procedures involved in this study were approved
by the Institutional and Animal Care Utilization Committee of the MMP.
NR 47
TC 9
Z9 9
U1 3
U2 47
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-0981
EI 1879-1697
J9 J EXP MAR BIOL ECOL
JI J. Exp. Mar. Biol. Ecol.
PD MAY
PY 2013
VL 443
BP 123
EP 133
DI 10.1016/j.jembe.2013.02.043
PG 11
WC Ecology; Marine & Freshwater Biology
SC Environmental Sciences & Ecology; Marine & Freshwater Biology
GA 164QX
UT WOS:000320425700014
ER
PT J
AU Ellingson, SW
Taylor, GB
Craig, J
Hartman, J
Dowell, J
Wolfe, CN
Clarke, TE
Hicks, BC
Kassim, NE
Ray, PS
Rickard, LJ
Schinzel, FK
Weiler, KW
AF Ellingson, S. W.
Taylor, G. B.
Craig, J.
Hartman, J.
Dowell, J.
Wolfe, C. N.
Clarke, T. E.
Hicks, B. C.
Kassim, N. E.
Ray, P. S.
Rickard, L. J.
Schinzel, F. K.
Weiler, K. W.
TI The LWA1 Radio Telescope
SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
LA English
DT Article
DE Antenna array; beamforming; radio astronomy
ID ACTIVE ANTENNA; LOW-FREQUENCY; SYSTEM; ARRAY
AB LWA1 is a new radio telescope operating in the frequency range 10-88 MHz, located in central New Mexico. The telescope consists of 258 pairs of dipole-type antennas whose outputs are individually digitized and formed into beams. Simultaneously, signals from all dipoles can be recorded using one of the instrument's "all dipoles" modes, facilitating all-sky imaging. Notable features of the instrument include high intrinsic sensitivity (approximate to 6 kJy zenith system equivalent flux density), large instantaneous bandwidth (up to 78 MHz), and four independently steerable beams utilizing digital "true time delay" beamforming. This paper summarizes the design of LWA1 and its performance as determined in commissioning experiments. We describe the method currently in use for array calibration, and report on measurements of sensitivity and beamwidth.
C1 [Ellingson, S. W.; Wolfe, C. N.] Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
[Taylor, G. B.; Craig, J.; Dowell, J.; Rickard, L. J.; Schinzel, F. K.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Hartman, J.] NASA, Jet Prop Lab, Pasadena, CA 91109 USA.
[Clarke, T. E.; Hicks, B. C.; Kassim, N. E.; Ray, P. S.] USN, Res Lab, Washington, DC 20375 USA.
[Weiler, K. W.] Computat Phys Inc, Springfield, VA 22151 USA.
RP Ellingson, SW (reprint author), Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
EM ellingson@vt.edu; gbtaylor@unm.edu; namir.kassim@nrl.navy.mil
OI Ray, Paul/0000-0002-5297-5278
FU U.S. Office of Naval Research [N00014-07-C-0147]; National Science
Foundation [AST-1139963, AST-1139974]; Naval Research Laboratory;
National Radio Astronomy Observatory
FX The authors acknowledge the helpful comments of M. Davis. Construction
of LWA1 has been supported by the U.S. Office of Naval Research under
Contract N00014-07-C-0147. Support for operations and continuing
development of LWA1 is provided by the National Science Foundation under
Grant AST-1139963 and AST-1139974. Basic research in radio astronomy at
the Naval Research Laboratory is supported by 6.1 base funding. The
authors acknowledge the support of the National Radio Astronomy
Observatory.
NR 23
TC 40
Z9 40
U1 0
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-926X
J9 IEEE T ANTENN PROPAG
JI IEEE Trans. Antennas Propag.
PD MAY
PY 2013
VL 61
IS 5
BP 2540
EP 2549
DI 10.1109/TAP.2013.2242826
PG 10
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 157BP
UT WOS:000319870700022
ER
PT J
AU Slootmaker, LA
Regnier, E
Hansen, JA
Lucas, TW
AF Slootmaker, Leslie A.
Regnier, Eva
Hansen, James A.
Lucas, Thomas W.
TI User Focus and Simulation Improve Predictions of Piracy Risk
SO INTERFACES
LA English
DT Article
DE defense; applications of simulation; design of experiments
AB Piracy is an increasingly costly and violent threat to commercial shipping and other vessels off the Horn of Africa. However, because pirates operate in small vessels that cannot navigate or attack in high seas or winds, pirate activity is highly sensitive to environmental conditions. The US Naval Oceanographic Office provides an operational forecast of the pirate threat; counterpiracy forces use this forecast to allocate their efforts over several million square miles. The most recent version uses simulation to model the effects of pirate behavior in interaction with winds, waves, and currents over time to forecast the geographic distribution of the pirate threat. As part of the development of the pirate behavior model, one author traveled to Bahrain to interview counterpiracy forces. We then used carefully designed simulation experiments to identify the variables that are most influential in determining the distribution of predicted pirate activity The results confirmed the importance of elements of the pirate behavior model that were derived from our operator interviews, informed decisions regarding operational settings for key parameters, and generated insights to guide future updates to the model and intelligence-gathering efforts. The resulting model uses our recommendations, including alternate pirate search patterns. It has been operational since March 2011 and is briefed daily to the senior leadership of US Naval Forces Central Command.
C1 [Slootmaker, Leslie A.] USN, Command Carrier Strike Grp 12, Unit 60009, FPO, AE 09506 USA.
[Regnier, Eva] USN, Postgrad Sch, Monterey, CA 93943 USA.
[Hansen, James A.] USN, Res Lab, Monterey, CA 93940 USA.
[Lucas, Thomas W.] USN, Postgrad Sch, Monterey, CA 93940 USA.
RP Slootmaker, LA (reprint author), USN, Command Carrier Strike Grp 12, Unit 60009, FPO, AE 09506 USA.
EM leslie.slootmaker@navy.mil; eregnier@nps.edu;
jim.hansen@nrlmry.navy.mil; twlucas@nps.edu
FU Office of Naval Research [N0001410WX20795]; Naval Postgraduate School's
Simulation, Experiments and Efficient Design Center
FX The authors are very grateful to Steve Upton, whose help was invaluable,
and to Paul Sanchez, Dashi Singham, and Chad Hutchins. This work was
supported by the Office of Naval Research [Grant N0001410WX20795] and
the Naval Postgraduate School's Simulation, Experiments and Efficient
Design Center.
NR 11
TC 1
Z9 1
U1 1
U2 10
PU INFORMS
PI HANOVER
PA 7240 PARKWAY DR, STE 310, HANOVER, MD 21076-1344 USA
SN 0092-2102
J9 INTERFACES
JI Interfaces
PD MAY-JUN
PY 2013
VL 43
IS 3
BP 256
EP 267
DI 10.1287/inte.2013.0678
PG 12
WC Management; Operations Research & Management Science
SC Business & Economics; Operations Research & Management Science
GA 162TZ
UT WOS:000320290200005
ER
PT J
AU Dollar, F
Zulick, C
Matsuoka, T
McGuffey, C
Bulanov, SS
Chvykov, V
Davis, J
Kalinchenko, G
Petrov, GM
Willingale, L
Yanovsky, V
Maksimchuk, A
Thomas, AGR
Krushelnick, K
AF Dollar, F.
Zulick, C.
Matsuoka, T.
McGuffey, C.
Bulanov, S. S.
Chvykov, V.
Davis, J.
Kalinchenko, G.
Petrov, G. M.
Willingale, L.
Yanovsky, V.
Maksimchuk, A.
Thomas, A. G. R.
Krushelnick, K.
TI High contrast ion acceleration at intensities exceeding 10(21) Wcm(-2)
SO PHYSICS OF PLASMAS
LA English
DT Article; Proceedings Paper
CT 54th Annual Meeting of the APS Division of Plasma Physics
CY 2012
CL Province, RI
ID LASER-SOLID INTERACTIONS; PROTON-BEAMS; PLASMA INTERACTIONS; TARGETS;
GENERATION; DRIVEN; PULSES; FIELD; ELECTRON; THERAPY
AB Ion acceleration from short pulse laser interactions at intensities of 2 x 10(21)Wcm(-2) was studied experimentally under a wide variety of parameters, including laser contrast, incidence angle, and target thickness. Trends in maximum proton energy were observed, as well as evidence of improvement in the acceleration gradients by using dual plasma mirrors over traditional pulse cleaning techniques. Extremely high efficiency acceleration gradients were produced, accelerating both the contaminant layer and high charge state ions from the bulk of the target. Two dimensional particle-in-cell simulations enabled the study of the influence of scale length on submicron targets, where hydrodynamic expansion affects the rear surface as well as the front. Experimental evidence of larger electric fields for sharp density plasmas is observed in simulation results as well for such targets, where target ions are accelerated without the need for contaminant removal. (C) 2013 AIP Publishing LLC.
C1 [Dollar, F.; Zulick, C.; Matsuoka, T.; McGuffey, C.; Bulanov, S. S.; Chvykov, V.; Kalinchenko, G.; Willingale, L.; Yanovsky, V.; Maksimchuk, A.; Thomas, A. G. R.; Krushelnick, K.] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA.
[Davis, J.; Petrov, G. M.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Dollar, F (reprint author), Univ Colorado, JILA, Boulder, CO 80309 USA.
RI Yanovsky, Victor/B-5899-2008; Dollar, Franklin/C-9214-2013; Kalinchenko,
Galina/G-5684-2014;
OI Dollar, Franklin/0000-0003-3346-5763; Thomas,
Alexander/0000-0003-3206-8512
FU NSF through the Physics Frontier Center FOCUS [PHY-0114336]; GRFP
[DGE-0718128]; Office of Naval Research
FX This work was supported by the NSF through the Physics Frontier Center
FOCUS (Grant No. PHY-0114336) and GRFP (Grant No. DGE-0718128), as well
as from the Office of Naval Research. The authors would like to
acknowledge the OSIRIS Consortium, consisting of UCLA and IST (Lisbon,
Portugal) for the use of OSIRIS, for providing access to the OSIRIS
framework. Simulations were performed on the Nyx Cluster at University
of Michigan.
NR 54
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Z9 6
U1 1
U2 29
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 1070-664X
EI 1089-7674
J9 PHYS PLASMAS
JI Phys. Plasmas
PD MAY
PY 2013
VL 20
IS 5
AR 056703
DI 10.1063/1.4803082
PG 8
WC Physics, Fluids & Plasmas
SC Physics
GA 158UU
UT WOS:000320000000114
ER
PT J
AU Savani, NP
Vourlidas, A
Pulkkinen, A
Nieves-Chinchilla, T
Lavraud, B
Owens, MJ
AF Savani, N. P.
Vourlidas, A.
Pulkkinen, A.
Nieves-Chinchilla, T.
Lavraud, B.
Owens, M. J.
TI Tracking the momentum flux of a CME and quantifying its influence on
geomagnetically induced currents at Earth
SO SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS
LA English
DT Article
DE coronal mass ejections; geomagnetically induced currents
ID CORONAL MASS EJECTIONS; GREAT MAGNETIC STORMS; SOLAR-WIND; RING CURRENT;
1 AU; OBSERVATIONAL EVIDENCE; TECHNOLOGICAL SYSTEMS; MHD SIMULATIONS;
STEREO MISSION; FIELD
AB We investigate a coronal mass ejection (CME) propagating toward Earth on 29 March 2011. This event is specifically chosen for its predominately northward directed magnetic field, so that the influence from the momentum flux onto Earth can be isolated. We focus our study on understanding how a small Earth-directed segment propagates. Mass images are created from the white-light cameras onboard STEREO which are also converted into mass height-time maps (mass J-maps). The mass tracks on these J-maps correspond to the sheath region between the CME and its associated shock front as detected by in situ measurements at L1. A time series of mass measurements from the STEREO COR-2A instrument is made along the Earth propagation direction. Qualitatively, this mass time series shows a remarkable resemblance to the L1 in situ density series. The in situ measurements are used as inputs into a three-dimensional (3-D) magnetospheric space weather simulation from the Community Coordinated Modeling Center. These simulations display a sudden compression of the magnetosphere from the large momentum flux at the leading edge of the CME, and predictions are made for the time derivative of the magnetic field (dB/dt) on the ground. The predicted dB/dt values were then compared with the observations from specific equatorially located ground stations and showed notable similarity. This study of the momentum of a CME from the Sun down to its influence on magnetic ground stations on Earth is presented as a preliminary proof of concept, such that future attempts may try to use remote sensing to create density and velocity time series as inputs to magnetospheric simulations.
C1 [Savani, N. P.] UCAR, Boulder, CO USA.
[Savani, N. P.; Pulkkinen, A.; Nieves-Chinchilla, T.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Vourlidas, A.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Pulkkinen, A.; Nieves-Chinchilla, T.] Catholic Univ Amer, IACS, Washington, DC 20064 USA.
[Lavraud, B.] Univ Toulouse UPS, Inst Rech Astrophys & Planetol, Toulouse, France.
[Lavraud, B.] CNRS, UMR 5277, Toulouse, France.
[Owens, M. J.] Univ Reading, Space Environm Phys Grp, Reading, Berks, England.
RP Savani, NP (reprint author), Naval Res Lab, Solar Phys Branch, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM neel.savani02@imperial.ac.uk
RI Savani, Neel/G-4066-2014; Vourlidas, Angelos/C-8231-2009; Owens,
Mathew/B-3006-2010; Nieves-Chinchilla, Teresa/F-3482-2016
OI Savani, Neel/0000-0002-1916-7877; Vourlidas,
Angelos/0000-0002-8164-5948; Owens, Mathew/0000-0003-2061-2453;
Nieves-Chinchilla, Teresa/0000-0003-0565-4890
FU NASA; NASA [S-136361-Y]
FX N.P.S. thanks Neil Sheeley and Adam Szabo for their collaborative
assistance. This research was also supported by the NASA Living With a
Star Jack Eddy Postdoctoral Fellowship Program, administered by the UCAR
Visiting Scientist Programs and hosted by the Naval Research Laboratory.
AV is supported by NASA contract S-136361-Y. The global MHD simulations
used in this work were carried out at the Community Coordinated Modeling
Center (CCMC) operated at NASA Goddard Space Flight Center. The authors
wish to acknowledge Lutz Rastaetter, David Berrios, and the rest of the
CCMC staff for their generous support throughout the work discussed in
the paper. The results presented in this paper rely on the data
collected at Vassouras, Kakadu, and Kanoya. We thank Observatorio
Nacional, Geoscience Australia, and Japan Meteorological Agency for
supporting its operation and International Real-time Magnetic
Observatory Network (INTERMAGNET) for promoting high standards of
magnetic observatory practice (www.intermagnet.org).
NR 114
TC 7
Z9 7
U1 0
U2 5
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 1542-7390
J9 SPACE WEATHER
JI Space Weather
PD MAY
PY 2013
VL 11
IS 5
BP 245
EP 261
DI 10.1002/swe.20038
PG 17
WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences
SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences
GA 166MR
UT WOS:000320559400008
ER
PT J
AU Boeneman, K
Delehanty, JB
Blanco-Canosa, JB
Susumu, K
Stewart, MH
Oh, E
Huston, AL
Dawson, G
Ingale, S
Walters, R
Domowicz, M
Deschamps, JR
Algar, WR
DiMaggio, S
Manono, J
Spillmann, CM
Thompson, D
Jennings, TL
Dawson, PE
Medintz, IL
AF Boeneman, Kelly
Delehanty, James B.
Blanco-Canosa, Juan B.
Susumu, Kimihiro
Stewart, Michael H.
Oh, Eunkeu
Huston, Alan L.
Dawson, Glyn
Ingale, Sampat
Walters, Ryan
Domowicz, Miriam
Deschamps, Jeffrey R.
Algar, W. Russ
DiMaggio, Stassi
Manono, Janet
Spillmann, Christopher M.
Thompson, Darren
Jennings, Travis L.
Dawson, Philip E.
Medintz, Igor L.
TI Selecting Improved Peptidyl Motifs for Cytosolic Delivery of Disparate
Protein and Nanoparticle Materials
SO ACS NANO
LA English
DT Article
DE endosomal escape; cytosol; nanoparticle; quantum dot; peptide;
fusogenic; cellular labeling; protein; cargo; dendrimer; membrane; cell
penetrating peptide
ID CELL-PENETRATING PEPTIDES; QUANTUM-DOT; GOLD NANOPARTICLES;
BIOCOMPATIBLE SEMICONDUCTOR; PHARMACEUTICAL NANOCARRIERS; INTRACELLULAR
DELIVERY; CANCER-CELLS; LIVE CELLS; NANOCRYSTALS; STABILITY
AB Cell penetrating peptides facilitate efficient intracellular uptake of diverse materials ranging from small contrast agents to larger proteins and nanoparticles. However, a significant impediment remains in the subsequent compartmentalization/endosomal sequestration of most of these cargoes. Previous functional screening suggested that a modular peptide originally designed to deliver palmitoyl-protein thioesterase inhibitors to neurons could mediate endosomal escape in cultured cells. Here, we detail properties relevant to this peptide's ability to mediate cytosolic delivery of quantum dots (Os) to a wide range of cell-types, brain tissue culture and a developing chick embryo in a remarkably nontoxic manner. The peptide further facilitated efficient endosomal escape of large proteins, dendrimers and other nanoparticle materials. We undertook an iterative structure-activity relationship analysis of the peptide by discretely modifying key components including length, charge, fatty acid content and their order using a comparative, semiquantitative assay. This approach allowed us to define the key motifs required for endosomal escape, to select more efficient escape sequences, along with unexpectedly identifying a sequence modified by one methylene group that specifically targeted QDs to cellular membranes. We interpret our results within a model of peptide function and highlight Implications for in vivo labeling and nanoparticle-mediated drug delivery by using different peptides to co-deliver cargoes to cells and engage in multifunctional labeling.
C1 [Boeneman, Kelly; Delehanty, James B.; Deschamps, Jeffrey R.; Algar, W. Russ; Spillmann, Christopher M.; Medintz, Igor L.] USN, Ctr Bio Mol Sci & Engn, Res Lab, Washington, DC 20375 USA.
[Susumu, Kimihiro; Stewart, Michael H.; Oh, Eunkeu; Huston, Alan L.] USN, Div Opt Sci, Res Lab, Washington, DC 20375 USA.
[Blanco-Canosa, Juan B.; Ingale, Sampat; Thompson, Darren; Dawson, Philip E.] Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA.
[Blanco-Canosa, Juan B.; Ingale, Sampat; Thompson, Darren; Dawson, Philip E.] Scripps Res Inst, Dept Chem, La Jolla, CA 92037 USA.
[Dawson, Glyn; Walters, Ryan; Domowicz, Miriam] Univ Chicago, Dept Pediat, Chicago, IL 60637 USA.
[Dawson, Glyn; Walters, Ryan; Domowicz, Miriam] Univ Chicago, Dept Biochem & Mol Biol, Chicago, IL 60637 USA.
[Walters, Ryan] Univ Chicago, Comm Neurobiol, Chicago, IL 60637 USA.
[Susumu, Kimihiro; Oh, Eunkeu] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
[Algar, W. Russ] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[DiMaggio, Stassi; Manono, Janet] Xavier Univ Louisiana, Dept Chem, New Orleans, LA 70125 USA.
[Blanco-Canosa, Juan B.] IRB Barcelona, Chem & Mol Pharmacol Programme, Barcelona 08028, Spain.
[Jennings, Travis L.] eBioscience Inc, San Diego, CA 92121 USA.
RP Dawson, PE (reprint author), Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA.
EM Dawson@scripps.edu; igor.medintz@nri.navy.mil
OI Domowicz, Miriam/0000-0001-7860-4427; Deschamps,
Jeffrey/0000-0001-5845-0010
FU NIH, National Center for Research Resources [5G12RR026260-03]; Natural
Sciences and Engineering Research Council of Canada (NSERC); NIH [P41
RR-01081]
FX The authors thank K. Sapsford (FDA) for imaging assistance and
acknowledge DARPA, NRL NSI, DTRA JSTO MIPR # B112582M. We thank
Invitrogen/Life Technologies for the 625 nm QDs. J.B.B.-C. acknowledges
a Marie Curie IOF (220292). S.C.D. acknowledges the Louisiana Cancer
Research Consortium and NIH Grant Number 5G12RR026260-03 from the
National Center for Research Resources. W.R.A. is grateful to the
Natural Sciences and Engineering Research Council of Canada (NSERC) for
a postdoctoral fellowship. G.D. acknowledges USPHS HD09402. Molecular
graphics images were produced using the UCSF Chimera package from the
Resource for Bio-computing, Visualization, and Informatics at the
University of California, San Francisco (supported by NIH P41 RR-01081).
NR 54
TC 52
Z9 52
U1 5
U2 117
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
J9 ACS NANO
JI ACS Nano
PD MAY
PY 2013
VL 7
IS 5
BP 3778
EP 3796
DI 10.1021/nn400702r
PG 19
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 156XD
UT WOS:000319856300015
PM 23710591
ER
PT J
AU Dermer, CD
Powale, G
AF Dermer, C. D.
Powale, G.
TI Gamma rays from cosmic rays in supernova remnants (Research Note)
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE cosmic rays; gamma rays: ISM; ISM: supernova remnants; radiation
mechanisms: non-thermal
ID LARGE-AREA TELESCOPE; XMM-NEWTON OBSERVATIONS; FERMI-LAT DISCOVERY;
SYNCHROTRON X-RAYS; RX J1713.7-3946; PARTICLE-ACCELERATION; MOLECULAR
CLOUDS; EMISSION; SHELL; EVOLUTION
AB Context. Cosmic rays are thought to be accelerated at supernova remnant (SNR) shocks, but obtaining conclusive evidence for this hypothesis is difficult.
Aims. New data from ground-based gamma-ray telescopes and the Large Area Telescope on the Fermi Gamma-ray Space Telescope are used to test this hypothesis. A simple model for gamma-ray production efficiency is compared with measured gamma-ray luminosities of SNRs, and the GeV to TeV fluxes ratios of SNRs are examined for correlations with SNR ages.
Methods. The supernova explosion is modeled as an expanding spherical shell of material that sweeps up matter from the surrounding interstellar medium (ISM). The accumulated kinetic energy of the shell, which provides the energy available for nonthermal particle acceleration, changes when matter is swept up from the ISM and the SNR shell decelerates. A fraction of this energy is assumed to be converted into the energy of cosmic-ray electrons or protons. Three different particle radiation processes - nuclear pion-production interactions, nonthermal electron bremsstrahlung, and Compton scattering - are considered.
Results. The efficiencies for gamma-ray production by these three processes are compared with gamma-ray luminosities of SNRs. Our results suggest that SNRs become less gamma-ray luminous at greater than or similar to 10(4) yr, and are consistent with the hypothesis that supernova remnants accelerate cosmic rays with an efficiency of approximate to 10% for the dissipation of kinetic energy into nonthermal cosmic rays. Weak evidence for an increasing GeV to TeV flux ratio with SNR age is found.
C1 [Dermer, C. D.; Powale, G.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Powale, G.] Broad Run High Sch, Ashburn, VA 20147 USA.
RP Dermer, CD (reprint author), USN, Div Space Sci, Res Lab, Code 7653,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM charles.dermer@nrl.navy.mil; gauripowale@yahoo.com
FU Office of Naval Research; Fermi Guest Investigator program
FX The work of C.D.D. is supported by the Office of Naval Research and the
Fermi Guest Investigator program. The work of G.P. was performed through
the Science and Engineering Apprenticeship Program (SEAP) at NRL. We
would like to thank T. J. Brandt, D. Horan, J. D. Finke, and R. Yamazaki
for comments on this work, and the referee for an illuminating report,
suggestions, and corrections.
NR 47
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Z9 13
U1 0
U2 1
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 0004-6361
EI 1432-0746
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD MAY
PY 2013
VL 553
AR A34
DI 10.1051/0004-6361/201220394
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 156YA
UT WOS:000319858700034
ER
PT J
AU Shore, SN
Aquino, ID
Schwarz, GJ
Augusteijn, T
Cheung, CC
Walter, FM
Starrfield, S
AF Shore, S. N.
Aquino, I. De Gennaro
Schwarz, G. J.
Augusteijn, T.
Cheung, C. C.
Walter, F. M.
Starrfield, S.
TI The spectroscopic evolution of the gamma-ray emitting classical nova
Nova Mon 2012 I. Implications for the ONe subclass of classical novae
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE novae, cataclysmic variables; stars: general; line: formation; nuclear
reactions, nucleosynthesis, abundances; cosmology: miscellaneous
ID ULTRAVIOLET SPECTRAL EVOLUTION; V1974 CYGNI; ELEMENTAL ABUNDANCES;
WHITE-DWARF; RS OPHIUCHI; T PYXIDIS; OUTBURST; EJECTA; DUST;
MULTIWAVELENGTH
AB Aims. Among the classical novae, the ONe subgroup, distinguished by their large overabundance of neon, are thought to occur on the most massive white dwarfs. Nova Mon 2012 was the first classical nova to be detected as a high energy.-ray transient, by Fermi-LAT, before its optical discovery. The first optical spectra obtained about 55 days after.-ray peak, were strikingly similar to the ONe class after the transition to the nebular (optically thin) spectrum. The current paper presents our subsequent optical and ultraviolet observations.
Methods. A time sequence of optical echelle spectra (3700-7400 angstrom) with the Nordic Optical Telescope (NOT) began on 2012 Aug. 16, immediately following the optical announcement, and are continuing. The nova was observed almost simultaneously with the NOT on 2012 Nov. 21, with the Space Telescope Imaging Spectrograph (STIS) aboard the Hubble Space Telescope at medium echelle resolution (1150-3050 angstrom) on Nov. 20, and with the CHIRON CTIO/SMARTS echelle spectrograph at medium resolution (4500-8900 angstrom) on Nov. 22. We used plasma diagnostics (e. g. [O III] and H beta line flux) to constrain electron densities and temperatures, and the filling factor, for the ejecta. Using Monte Carlo modeling, we derived the structure from comparisons to the optical and ultraviolet line profiles. We also compared observed fluxes for Nova Mon 2012 with those predicted by photoionization modeling with Cloudy using element abundances derived for other ONe novae, the parameters derived from the line profile modeling and multiwavelength continuum measurements.
Results. Nova Mon 2012 is confirmed as an ONe nova first observed spectroscopically in the nebular stage. We derive an extinction of E(B - V) = 0.85 +/- 0.05 and hydrogen column density N-H approximate to 5 x 10(21) cm(-2). The corrected continuum luminosity is nearly the same in the entire observed energy range compared to V1974 Cyg, V382 Mon, and Nova LMC 2000 at the same epoch after outburst. The distance, about 3.6 kpc, is quite similar to V1974 Cyg, suggesting that it would have been equally bright had it been observed at maximum light. The same applies to the line profiles. These can be modeled using an axisymmetric conical - bipolar - geometry for the ejecta with various inclinations of the axis to the line of sight, i, and ejecta inner radii. For Nova Mon 2012, we find that 60 <= i <= 80 degrees, an opening angle of approximate to 70 degrees, and an inner radius Delta R/R(t) approximate to 0.4 matches the permitted and intercombination lines while the forbidden lines require a less filled structure. The filling factor is f approximate to 0.1-0.3, although it may be lower based on the structures observed in the emission line profiles, implying an ejecta mass <= 6 x 10(-5) M-circle dot. The abundances are similar to, but not identical to, V1974 Cyg and V382 Vel. In particular, Ne and Mg are apparently more abundant in Nova Mon 2012.
Conclusions. The ONe novae appear to comprise a single physical class with bipolar high mass ejecta, similarly enhanced abundances, and a common spectroscopic evolution within a narrow range of luminosities. The spectral evolution does not require continued mass loss from the post-explosion white dwarf. This also implies that the detected gamma-ray emission is a generic phenomenon, common to all ONe novae, possibly to all classical novae, and connected with acceleration and emission processes within the ejecta.
C1 [Shore, S. N.; Aquino, I. De Gennaro] Univ Pisa, Dipartimento Fis Enrico Fermi, I-56127 Pisa, Italy.
[Shore, S. N.; Aquino, I. De Gennaro] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Schwarz, G. J.] Amer Astron Soc, Washington, DC 20009 USA.
[Augusteijn, T.] Nord Opt Telescope, Santa Cruz De La Palma 38700, Santa Cruz De T, Spain.
[Cheung, C. C.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Walter, F. M.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
[Starrfield, S.] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA.
RP Shore, SN (reprint author), Univ Pisa, Dipartimento Fis Enrico Fermi, I-56127 Pisa, Italy.
EM shore@df.unipi.it; ivan.degennaroaquino@gmail.com; Greg.Schwarz@aas.org;
tau@not.iac.es; Teddy.Cheung@nrl.navy.mil;
frederick.walter@stonybrook.edu; sumner.starrfield@asu.edu
FU Karles' Fellowship; NASA [DPR S-15633-Y]; NSF; [DD/TO 13120]
FX We have made extensive use of the Astrophysics Data System (ADS), SIMBAD
(CDS), and the Barbara A. Mikulski MAST archive at STScI during this
work. The NOT observations were obtained in Fast Track proposal 46-408.
We thank the CHIRON observer, Rodrigo Hernandez, for his hard work. The
STIS spectra were obtained in program DD/TO 13120. We thank the director
of STScI, Matt Mountain, for granting Director's Discretionary Time for
the STIS observation and Claus Leitherer, Nolan Walborn, and Patricia
Royle for their help in planning the observations. We express our
deepest thanks to Ronaldo Bellazzini, Neil Gehrels, Elizabeth Hays,
Julie McEnery, Peter Michelson, and David Thompson of the Fermi project
for their strong support of the HST observations and their
encouragement, and Olivier Chesneau, Pierre Jean, Jordi Jose, Elena
Mason, Ulisse Munari, Jan-Uwe Ness, Kim Page, Soebur Razzaque, Bob
Williams, and the ARAS group for discussions, and Mark Wagner for
digging out the V1974 Cyg optical spectra. C. C. C. was supported at NRL
by a Karles' Fellowship and NASA DPR S-15633-Y. S. S. is grateful for
partial support to ASU from NSF and NASA. We especially thank the
referee, Nye Evans, for his careful and supportive review of the
original submission.
NR 56
TC 24
Z9 24
U1 0
U2 1
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 0004-6361
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD MAY
PY 2013
VL 553
AR A123
DI 10.1051/0004-6361/201321095
PG 17
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 156YA
UT WOS:000319858700123
ER
PT J
AU Crawford, S
AF Crawford, Sharika
TI Salt and the Colombian State: Local Society and Regional Monopoly in
Boyaca, 1821-1900
SO SOCIAL HISTORY
LA English
DT Book Review
C1 [Crawford, Sharika] USN Acad, Annapolis, MD 21402 USA.
RP Crawford, S (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0307-1022
J9 SOC HIST
JI Soc. Hist.
PD MAY 1
PY 2013
VL 38
IS 2
BP 255
EP 257
DI 10.1080/03071022.2013.786234
PG 3
WC History
SC History
GA 152TA
UT WOS:000319552800015
ER
PT J
AU Yarnall, NJ
Hughes, LM
Turnbull, PS
Michaud, M
AF Yarnall, Nicholas J.
Hughes, Linda M.
Turnbull, Paul S.
Michaud, Mark
TI Evaluating the effectiveness of the US Navy and Marine Corps Tobacco
Policy: an assessment of secondhand smoke exposure in US Navy
submariners
SO TOBACCO CONTROL
LA English
DT Article
ID SERUM COTININE LEVELS; LIQUID-CHROMATOGRAPHY; CIGARETTE SMOKERS;
NICOTINE; NONSMOKERS; SALIVARY; URINARY; PLASMA
AB Objective To evaluate the effectiveness of the US Navy and Marine Corps tobacco policy in protecting submariners from secondhand smoke (SHS) by determining if non-tobacco users experienced a significant increase in urinary cotinine levels at sea when compared with in port levels.
Methods From February to August 2009, 634 volunteers recruited from nine US Navy submarines completed a survey to collect demographic data, information on tobacco use and pre-deployment exposure to SHS. Non-tobacco users (n=239) were requested to provide two urine samples (pre-deployment and while at sea) to quantify exposure to SHS using urinary cotinine as a biomarker. Matched samples were analysed using liquid chromatography-tandem mass spectrometry.
Results Overall, deployed cotinine levels were 2.1 times the in port levels in non-tobacco using submariners (95% CI 1.8 to 2.4, p<0.001, n=197). A significant increase in deployed urinary cotinine levels was found aboard six of nine submarines (p<0.05). A subgroup of submariners (n=91) who reported no SHS exposure within 10 days prior to in port cotinine sampling had deployed cotinine levels 2.7 times the in port levels (95% CI 2.2 to 3.3, p<0.001). Applying a 4.5: 1 urine cotinine to serum cotinine correction factor, submariners' deployed geometric means are similar to recent US male population values at the 75th percentile.
Conclusions This study provides evidence that non-tobacco using submariners were exposed to SHS. Exposure was seen in all submarine classes and was not limited to personnel working in proximity to the smoking area. The existing policy was inadequate to protect nonsmokers from exposure to SHS and required revision. As a result of a policy review, informed by this study, smoking below decks was banned aboard all US Navy submarines effective 31 December 2010.
C1 [Yarnall, Nicholas J.] Fit Work Ltd, Cromwell, Central Otago, New Zealand.
[Hughes, Linda M.] USN, Submarine Med Res Lab, Groton, CT 06349 USA.
[Turnbull, Paul S.] Inst Naval Med, Alverstoke, Hants, England.
[Michaud, Mark] Navy Bur Med & Surg, Washington, DC USA.
RP Hughes, LM (reprint author), USN, Submarine Med Res Lab, Box 900, Groton, CT 06349 USA.
EM linda.m.hughes@med.navy.mil
FU Naval Sea Systems Command; Flight Attendant Medical Research Institute
FX Support for this study was provided by the Naval Sea Systems Command.
The development of the method for measuring concentrations of cotinine
and trans-3'-hydroxycotinine at the University of California, San
Francisco, was supported in part by the Flight Attendant Medical
Research Institute.
NR 30
TC 1
Z9 1
U1 1
U2 6
PU BMJ PUBLISHING GROUP
PI LONDON
PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON WC1H 9JR, ENGLAND
SN 0964-4563
J9 TOB CONTROL
JI Tob. Control
PD MAY
PY 2013
VL 22
IS E1
AR e66
DI 10.1136/tobaccocontrol-2012-050488
PG 7
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA 159CT
UT WOS:000320022400012
PM 22871902
ER
PT J
AU Zhang, ZC
Yuan, DL
Chu, PC
AF Zhang Zhichun
Yuan Dongliang
Chu, Peter C.
TI Geostrophic meridional transport in tropical Northwest Pacific based on
Argo profiles
SO CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
LA English
DT Article
DE Sverdrup theory; absolute geostrophic current; P-vector
ID SVERDRUP BALANCE; CIRCULATION; ATLANTIC; 24-DEGREES-N; ACCOUNT; SEA
AB Absolute geostrophic currents in the North Pacific Ocean were calculated using P-vector method from newly gridded Argo profiling float data collected during 2004-2009. The meridional volume transport of geostrophic currents differed significantly from the classical Sverdrup balance, with differences of 10x10(6)-20x10(6)m(3)/s in the interior tropical Northwest Pacific Ocean. Analyses showed that errors of wind stress estimation could not explain all of the differences. The largest differences were found in the areas immediately north and south of the bifurcation latitude of the North Equatorial Current west of the dateline, and in the recirculation area of the Kuroshio and its extension, where nonlinear eddy activities were robust. Comparison of the geostrophic meridional transport and the wind-driven Sverdrup meridional transport in a high-resolution OFES simulation showed that nonlinear effects of the ocean circulation were the most likely reason for the differences. It is therefore suggested that the linear, steady wind-driven dynamics of the Sverdrup theory cannot completely explain the meridional transport of the interior circulation of the tropical Northwest Pacific Ocean.
C1 [Zhang Zhichun; Yuan Dongliang] Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China.
[Zhang Zhichun; Yuan Dongliang] Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China.
[Zhang Zhichun] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China.
[Chu, Peter C.] USN, Naval Ocean Anal & Predict NOAP Lab, Dept Oceanog, Postgrad Sch, Monterey, CA USA.
RP Yuan, DL (reprint author), Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China.
EM dyuan@qdio.ac.cn
FU National Basic Research Program of China (973 Program) [2012CB956000];
National Natural Science Foundation of China [40888001, 41176019];
KLOCAW [1208]
FX Supported by the National Basic Research Program of China (973 Program)
(No. 2012CB956000) and the National Natural Science Foundation of China
(Nos. 40888001, 41176019). Z. Zhang is supported by KLOCAW 1208
NR 18
TC 4
Z9 6
U1 0
U2 8
PU SCIENCE PRESS
PI BEIJING
PA 16 DONGHUANGCHENGGEN NORTH ST, BEIJING, 100717, PEOPLES R CHINA
SN 0254-4059
J9 CHIN J OCEANOL LIMN
JI Chin. J. Oceanol. Limnol.
PD MAY
PY 2013
VL 31
IS 3
BP 656
EP 664
DI 10.1007/s00343-013-2169-0
PG 9
WC Limnology; Oceanography
SC Marine & Freshwater Biology; Oceanography
GA 141IU
UT WOS:000318719700021
ER
PT J
AU Meger, RA
Cairns, RL
Douglass, SR
Huhman, B
Neri, JM
Carney, CJ
Jones, HN
Cooper, K
Feng, J
Brintlinger, TH
Sprague, JA
Michopoulos, JG
Young, MM
DeGiorgi, V
Leung, A
Baucom, JN
Wimmer, S
AF Meger, Robert A.
Cairns, Richard L., III
Douglass, Scott R.
Huhman, Brett
Neri, Jesse M.
Carney, Carl J.
Jones, Harry N.
Cooper, Khershed
Feng, Jerry
Brintlinger, Todd H.
Sprague, James A.
Michopoulos, John G.
Young, Marcus M.
DeGiorgi, Virginia
Leung, Alan
Baucom, Jared N.
Wimmer, Stephanie
TI EM Gun Bore Life Experiments at Naval Research Laboratory
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article; Proceedings Paper
CT 16th IEEE International Symposium on Electromagnetic Launch (EML)
Technology
CY MAY 15-19, 2012
CL Inst Strateg & Innovat Technologies (ISIT), Beijing, PEOPLES R CHINA
SP IEEE, China Electrotechn Soc (CES), IEEE Nucl & Plasma Sci Soc
HO Inst Strateg & Innovat Technologies (ISIT)
DE Projectiles; pulsed power systems; railguns; surface topology
ID CONTACT TRANSITION; ARMATURES; RAIL
AB The Naval Research Laboratory (NRL) performs basic and applied research on high power railguns as part of the US Navy EM Launcher program. The understanding of damage mechanisms as a function of armature and barrel materials, launch parameters, and bore geometry is of primary interest to the development of a viable high power railgun. Research is performed on a 6-m, 1.5-MJ railgun located at NRL. Barrel studies utilize in situ diagnostics coupled with detailed ex situ analysis of rail materials to provide clues to the conditions present during launch. Results are compared with coupled 3-D electromagnetic and mechanical finite element analysis models of railgun operation. Results of several experiments on rail wear will be discussed.
C1 [Meger, Robert A.; Huhman, Brett; Neri, Jesse M.; Carney, Carl J.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Cairns, Richard L., III; Douglass, Scott R.] Sotera Def Solut Inc, Crofton, MD 21114 USA.
[Jones, Harry N.; Cooper, Khershed; Feng, Jerry; Brintlinger, Todd H.; Michopoulos, John G.; Young, Marcus M.; DeGiorgi, Virginia; Leung, Alan; Baucom, Jared N.; Wimmer, Stephanie] USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
[Sprague, James A.] Nova Res Inc, Alexandria, VA 22308 USA.
RP Meger, RA (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM meger@nrl.navy.mil; richard.cairns.ctr@nrl.navy.mil;
scott.douglass@nrl.navy.mil; brett.huhman@nrl.navy.mil;
jesse.neri@nrl.navy.mil; carl.carney@nrl.navy.mil;
harry.jones@nrl.navy.mil; khershed.cooper@nrl.navy.mil;
jerry.feng@nrl.navy.mil; todd.brintlinger@nrl.navy.mil;
james.sprague.ctr@nrl.navy.mil; john.michopoulos@nrl.navy.mil;
marcus.young@nrl.navy.mil; virginia.degiorgi@nrl.navy.mil;
alan.leung@nrl.navy.mil; jared.baucom@nrl.navy.mil;
stephanie.wimmer@nrl.navy.mil
RI Michopoulos, John/D-6704-2016
OI Michopoulos, John/0000-0001-7004-6838
NR 13
TC 4
Z9 5
U1 3
U2 26
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD MAY
PY 2013
VL 41
IS 5
SI SI
BP 1533
EP 1537
DI 10.1109/TPS.2013.2250314
PN 1
PG 5
WC Physics, Fluids & Plasmas
SC Physics
GA 146GW
UT WOS:000319079100088
ER
PT J
AU Meger, RA
Huhman, BM
Neri, JM
Brintlinger, TH
Jones, HN
Cairns, RL
Douglass, SR
Lockner, TR
Sprague, JA
AF Meger, Robert A.
Huhman, Brett M.
Neri, Jesse M.
Brintlinger, Todd H.
Jones, Harry N.
Cairns, Richard L.
Douglass, Scott R.
Lockner, Thomas R.
Sprague, James A.
TI NRL Materials Testing Facility
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article; Proceedings Paper
CT 16th IEEE International Symposium on Electromagnetic Launch (EML)
Technology
CY MAY 15-19, 2012
CL Inst Strateg & Innovat Technologies (ISIT), Beijing, PEOPLES R CHINA
SP IEEE, China Electrotechn Soc (CES), IEEE Nucl & Plasma Sci Soc
HO Inst Strateg & Innovat Technologies (ISIT)
DE Electric launcher; materials testing facility (MTF); pulsed power;
railgun
AB The Naval Research Laboratory Materials Testing Facility performs basic research on high-power railguns. The laboratory houses a 6-m-long, 5-cm-bore railgun capable of launching 0.5-kg projectiles at up to 2.5 km/s. The railgun is powered by an 11-MJ capacitor bank comprising twenty-two 0.5-MJ modules. The crow-barred banks can drive up to 1.5 MA in the railgun. The railgun core consists of steel rails with copper backers and epoxy laminate insulators. Aluminum armatures with acrylic bore riders are used for the launch package. Launch data are recorded digitally and analyzed using in-house computer codes. The system design is presented along with typical data.
C1 [Meger, Robert A.; Huhman, Brett M.; Neri, Jesse M.; Brintlinger, Todd H.; Jones, Harry N.; Douglass, Scott R.] USN, Res Lab, Washington, DC 20375 USA.
[Cairns, Richard L.] Sotera Def Solut, Crofton, MD 21114 USA.
[Lockner, Thomas R.] Electrophys Applicat, Albuquerque, NM 87111 USA.
[Sprague, James A.] Nova Res Inc, Alexandria, VA 22308 USA.
RP Meger, RA (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM robert.meger@nrl.navy.mil; brett.huhman@nrl.navy.mil;
jesse.neri@nrl.navy.mil; todd.brintlinger@nrl.navy.mil;
harry.jones@nrl.navy.mil; richard.cairns.ctr@nrl.navy.mil;
scott.douglass@nrl.navy.mil; trlockn@gmail.com;
james.sprague.ctr@nrl.navy.mil
NR 6
TC 6
Z9 6
U1 0
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD MAY
PY 2013
VL 41
IS 5
SI SI
BP 1538
EP 1541
DI 10.1109/TPS.2013.2250313
PN 1
PG 4
WC Physics, Fluids & Plasmas
SC Physics
GA 146GW
UT WOS:000319079100089
ER
PT J
AU Orzech, MD
Veeramony, J
Ngodock, H
AF Orzech, Mark D.
Veeramony, Jayaram
Ngodock, Hans
TI A Variational Assimilation System for Nearshore Wave Modeling
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Article
ID BATHYMETRY; OCEAN; WAM; PREDICTION; VALIDATION; DISCRETE; ADJOINT
AB A variational data assimilation system is developed for the stationary, homogeneous portion of the wave model Simulating Waves Nearshore (SWAN). The system is based on a numerical adjoint constructed for the discrete forward SWAN code; its performance is compared to that of an earlier system based on a discretized analytical adjoint (Walker; Veeramony et al.). This paper describes the development and validation of individual numerical adjoint subroutines, followed by the testing and evaluation of the assimilation system as a whole with an idealized twin experiment and with data from Duck, North Carolina. In the twin experiment, the present system performs on par with that of Walker. Estimates of wave spectra and spectral statistics also compare well to measured spectral data at Duck, North Carolina. The error in these estimates is partly due to the exclusion of nonlinear source and sink terms from the adjoint and partly due to different spectral processing techniques used for different types of instruments.
C1 [Orzech, Mark D.; Veeramony, Jayaram; Ngodock, Hans] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Orzech, MD (reprint author), USN, Res Lab, Code 7320, Stennis Space Ctr, MS 39529 USA.
EM mark.orzech@nrlssc.navy.mil
FU National Academy of Sciences, through a National Research Council; Naval
Research Laboratory, through a National Research Council; Office of
Naval Research through the 6.2 NRL Core Project [0602435N]
FX This work was funded by the National Academy of Sciences and the Naval
Research Laboratory, through a National Research Council Post-doctoral
Research Associateship, and by the Office of Naval Research through the
6.2 NRL Core Project "Improving Wave Predictions Using Data Assimilation
in a Spectral Wave Model," Program Element 0602435N. We thank David
Walker for graciously allowing us to use his codes for computing
conjugate gradients and tracking the convergence of the cost function in
the adjoint model, and several anonymous reviewers for their many
helpful comments and suggestions.
NR 32
TC 6
Z9 6
U1 0
U2 5
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0739-0572
J9 J ATMOS OCEAN TECH
JI J. Atmos. Ocean. Technol.
PD MAY
PY 2013
VL 30
IS 5
BP 953
EP 970
DI 10.1175/JTECH-D-12-00097.1
PG 18
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA 148PW
UT WOS:000319259000007
ER
PT J
AU Bermudez, VM
AF Bermudez, Victor M.
TI In situ formation and electron-spectroscopic study of bis(arene) V and
Cr compounds on a graphite surface
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
LA English
DT Article
ID ENERGY-LOSS SPECTROSCOPY; DENSITY-FUNCTIONAL THEORY; WALLED CARBON
NANOTUBES; PHOTOELECTRON-SPECTROSCOPY; ARENE COMPLEXES; GAS-PHASE;
METAL; BENZENE; BIS(BENZENE)CHROMIUM; FERROCENE
AB Thin layers of bis(arene) transition metal (TM) compounds have been formed in situ in ultra-high vacuum by depositing Cr or V metal on top of a film of benzene (Bz) or toluene (Tol) ice at 100 K on a graphite substrate. The species thus formed are Cr(C6H6)(2), V(C6H6)(2), or Cr(C6H5-CH3)(2) (termed CrBz(2), VBz(2), or Cr(Tol)(2)), and the valence structures have been examined using electron energy loss and ultraviolet photoemission spectroscopies (ELS and UPS). The reaction is "clean" in that there is no indication of side reactions or unwanted by-products, although a small coverage of unreacted TM atoms appears unavoidable. A simple ring substituent (CH3) remains intact during the reaction. Thus, it should be possible to synthesize and study species that are not readily available (or cannot easily be made) in bulk form or that have too low vapor pressure to allow easy in situ deposition. Data have been obtained for VBz(2) and Cr(Tol)(2), the valence structures of which have not previously been studied in detail using UPS and ELS. Although deeper-lying arene orbitals are essentially unperturbed by formation of the bis(arene) TM sandwich, subtle differences in the TM-related orbitals have been observed and discussed in comparison to CrBz(2) with the aid of density functional theory. In the case of VBz(2), clear evidence is seen for a molecular reorientation during annealing, based on the ELS polarization dependence. Electron transfer between an adsorbed bis(arene)TM and graphite depends on the occupancy of the highest occupied molecular orbital (HOMO) and on its energy relative to the Fermi level (E-F). The small amount of unreacted TM resulting from in situ synthesis causes a large decrease in work function, which shifts the adsorbate HOMO to below E-F and thus impedes electron transfer to highly oriented pyrolytic graphite. This is an obstacle to forming doping layers by this method.
C1 USN, Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
RP Bermudez, VM (reprint author), USN, Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
EM victor.bermudez@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research and by a grant
of computer time from the DOD High Performance Computing Modernization
Program at the ARL-MSRC. J. P. Long is thanked for providing the UPS
excitation source, and H. Pinto is thanked for helpful communications.
D. E. Barlow and A. R. Laracuente are thanked for helpful discussions.
NR 64
TC 1
Z9 1
U1 0
U2 24
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 MAY
PY 2013
VL 31
IS 3
AR 031402
DI 10.1116/1.4794194
PG 8
WC Materials Science, Coatings & Films; Physics, Applied
SC Materials Science; Physics
GA 149VQ
UT WOS:000319349900017
ER
PT J
AU Shinoda, T
Jensen, TG
Flatau, M
Chen, S
Han, WQ
Wang, CZ
AF Shinoda, Toshiaki
Jensen, Tommy G.
Flatau, Maria
Chen, Sue
Han, Weiqing
Wang, Chunzai
TI Large-Scale Oceanic Variability Associated with the Madden-Julian
Oscillation during the CINDY/DYNAMO Field Campaign from Satellite
Observations
SO REMOTE SENSING
LA English
DT Article
DE Indian Ocean; Madden-Julian Oscillation; CINDY/DYNAMO; Aquarius; upper
ocean variability; satellite observations
ID TROPICAL WESTERN PACIFIC; SEA-SURFACE TEMPERATURE; INTRASEASONAL KELVIN
WAVES; EQUATORIAL INDIAN-OCEAN; MODEL; CIRCULATION; TIMESCALES;
MECHANISM; DYNAMICS; CURRENTS
AB During the CINDY/DYNAMO field campaign (fall/winter 2011), intensive measurements of the upper ocean, including an array of several surface moorings and ship observations for the area around 75 E-80 E, Equator-10 S, were conducted. In this study, large-scale upper ocean variations surrounding the intensive array during the field campaign are described based on the analysis of satellite-derived data. Surface currents, sea surface height (SSH), sea surface salinity (SSS),surface winds and sea surface temperature (SST) during the CINDY/DYNAMO field campaign derived from satellite observations are analyzed. During the intensive observation period, three active episodes of large-scale convection associated with the Madden-Julian Oscillation (MJO) propagated eastward across the tropical Indian Ocean. Surface westerly winds near the equator were particularly strong during the events in late November and late December, exceeding 10 m/s. These westerlies generated strong eastward jets (>1 m/s) on the equator. Significant remote ocean responses to the equatorial westerlies were observed in both Northern and Southern Hemispheres in the central and eastern Indian Oceans. The anomalous SSH associated with strong eastward jets propagated eastward as an equatorial Kelvin wave and generated
C1 [Shinoda, Toshiaki; Jensen, Tommy G.] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
[Flatau, Maria; Chen, Sue] USN, Res Lab, Monterey, CA 93943 USA.
[Han, Weiqing] Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA.
[Wang, Chunzai] NOAA, Atlantic Oceanog & Meteorol Lab, Miami, FL 33149 USA.
RP Shinoda, T (reprint author), USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
EM toshiaki.shinoda@nrlssc.navy.mil; tommy.jensen@nrlssc.navy.mil;
maria.flatau@nrlmry.navy.mil; sue.chen@nrlmry.navy.mil;
weiqing.han@colorado.edu; chunzai.wang@noaa.gov
RI Wang, Chunzai /C-9712-2009; Shinoda, Toshiaki/J-3745-2016
OI Wang, Chunzai /0000-0002-7611-0308; Shinoda,
Toshiaki/0000-0003-1416-2206
FU Naval Research; NOAA/CPO ESS; MAPP; Influence of Atmosphere Ocean
Interaction on MJO Development and Propagation [601153N]
FX We acknowledge the effort of all Aquarius team members for making the
sea surface salinity data available. The TAO Project Office of NOAA/PMEL
provided the RAMA buoy time series data. The altimeter products are
produced by SSALTO/DUACS and are distributed by AVISO. Windsat data are
produced by Remote Sensing Systems. The OSCAR Project Office has made
the surface velocity data available. The NCEP/NCAR reanalysis, blended
SST product and OLR are provided by the NOAA/OAR/ESRL PSD. This research
is supported by "The Influence of Atmosphere Ocean Interaction on MJO
Development and Propagation" (Program Element 601153N) sponsored by the
Office of Naval Research, and NOAA/CPO ESS and MAPP programs.
NR 53
TC 17
Z9 17
U1 1
U2 9
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 2072-4292
J9 REMOTE SENS-BASEL
JI Remote Sens.
PD MAY
PY 2013
VL 5
IS 5
BP 2072
EP 2092
DI 10.3390/rs5052072
PG 21
WC Remote Sensing
SC Remote Sensing
GA 151CT
UT WOS:000319438900003
ER
PT J
AU Burkard, C
Minut, A
Ramdani, K
AF Burkard, Corinna
Minut, Aurelia
Ramdani, Karim
TI FAR FIELD MODEL FOR TIME REVERSAL AND APPLICATION TO SELECTIVE FOCUSING
ON SMALL DIELECTRIC INHOMOGENEITIES
SO INVERSE PROBLEMS AND IMAGING
LA English
DT Article
DE Time-reversal; scattering; small inhomogeneities; far field operator;
wave focusing
ID INVERSE SCATTERING-THEORY; LINEAR SAMPLING METHOD; ELECTROMAGNETIC
SCATTERING; FACTORIZATION METHOD; RESPONSE MATRIX; MUSIC ALGORITHM;
OPERATOR; MIRRORS; DECOMPOSITION; TARGETS
AB Based on the time-harmonic far field model for small dielectric inclusions in 3D, we study the so-called DORT method (DORT is the French acronym for "Diagonalization of the Time Reversal Operator"). The main observation is to relate the eigenfunctions of the time-reversal operator to the location of small scattering inclusions. For non penetrable sound-soft acoustic scatterers, this observation has been rigorously proved for 2 and 3 dimensions by Hazard and Ramdani in [21] for small scatterers. In this work, we consider the case of small dielectric inclusions with far field measurements. The main difference with the acoustic case is related to the magnetic permeability and the related polarization tensors. We show that in the regime kd -> infinity (k denotes here the wavenumber and d the minimal distance between the scatterers), each inhomogeneity gives rise to -at most- 4 distinct eigenvalues (one due to the electric contrast and three to the magnetic one) while each corresponding eigenfunction generates an incident wave focusing selectively on one of the scatterers. The method has connections to the MUSIC algorithm known in Signal Processing and the Factorization Method of Kirsch.
C1 [Burkard, Corinna; Ramdani, Karim] Inria CORIDA Team, F-54600 Villers Les Nancy, France.
[Minut, Aurelia] USN Acad, Dept Math, Annapolis, MD 21402 USA.
[Ramdani, Karim] Univ Lorraine, IECL, UMR 7502, F-54506 Vandoeuvre Les Nancy, France.
RP Burkard, C (reprint author), Inria CORIDA Team, F-54600 Villers Les Nancy, France.
EM corinna.burkard@web.de; Aurelia.Minut.ro@usna.edu;
Karim.Ramdani@inria.fr
FU FRAE through the research project IPPON
FX The authors want to thank Bertrand Thierry for his contribution to the
MATLAB code realizing the DORT method for penetrable spheres. They also
thank Marc Bonnet (POems group, CNRS/Inria/Ensta) for his careful
reading of this work and for pointing out to us a little sign mistake in
the far field asymptotics. Financial support for this work was provided
by the FRAE (http://www.fnrae.org/) through the research project IPPON.
NR 35
TC 3
Z9 3
U1 4
U2 17
PU AMER INST MATHEMATICAL SCIENCES
PI SPRINGFIELD
PA PO BOX 2604, SPRINGFIELD, MO 65801-2604 USA
SN 1930-8337
J9 INVERSE PROBL IMAG
JI Inverse Probl. Imaging
PD MAY
PY 2013
VL 7
IS 2
BP 445
EP 470
DI 10.3934/ipi.2013.7.445
PG 26
WC Mathematics, Applied; Physics, Mathematical
SC Mathematics; Physics
GA 147XL
UT WOS:000319204400007
ER
PT J
AU Porter, CK
Choi, D
Riddle, MS
AF Porter, Chad K.
Choi, Daniel
Riddle, Mark S.
TI Pathogen-specific Risk of Reactive Arthritis from Bacterial Causes of
Foodborne Illness
SO JOURNAL OF RHEUMATOLOGY
LA English
DT Article
DE PATHOGEN; REACTIVE ARTHRITIS; FOODBORNE ILLNESS
ID UNITED-STATES; DISEASE; AGENTS
AB Objective. Reactive arthritis (ReA) is a sequelae of common bacterial infections of acute gastroenteritis. We assessed incidence of ReA following Campylobacter,, Salmonella, Shigella, or Yersinia infection utilizing a US Department of Defense medical database.
Methods. Subjects with acute gastroenteritis attributed to these pathogens were matched with 4 unexposed subjects. Medical history was analyzed for 6 months postinfection to assess for incident ReA.
Results. A total of 1753 cases of gastroenteritis were identified. ReA incidence ranged from 0 to 4 per 100,000 person-years.
Conclusion. These data are consistent with prior studies and highlight the need for continued primary prevention efforts.
C1 [Porter, Chad K.; Riddle, Mark S.] USN, Med Res Ctr, Enter Dis Dept, Silver Spring, MD 20910 USA.
[Choi, Daniel] George Washington Univ, Sch Publ Hlth & Hlth Serv, Washington, DC USA.
RP Porter, CK (reprint author), USN, Med Res Ctr, Enter Dis Dept, Infect Dis Directorate, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM chad.porter@med.navy.mil
FU Military Infectious Disease Research Program
FX Supported by the Military Infectious Disease Research Program.
NR 14
TC 5
Z9 5
U1 0
U2 2
PU J RHEUMATOL PUBL CO
PI TORONTO
PA 365 BLOOR ST E, STE 901, TORONTO, ONTARIO M4W 3L4, CANADA
SN 0315-162X
J9 J RHEUMATOL
JI J. Rheumatol.
PD MAY
PY 2013
VL 40
IS 5
BP 712
EP 714
DI 10.3899/jrheum.121254
PG 3
WC Rheumatology
SC Rheumatology
GA 147MO
UT WOS:000319171900025
PM 23547220
ER
PT J
AU Royal, JM
Settle, TL
Bodo, M
Lombardini, E
Kent, ML
Upp, J
Rothwell, SW
AF Royal, Joseph M.
Settle, Timothy L.
Bodo, Michael
Lombardini, Eric
Kent, Michael L.
Upp, Justin
Rothwell, Stephen W.
TI Assessment of Postoperative Analgesia after Application of
Ultrasound-Guided Regional Anesthesia for Surgery in a Swine Femoral
Fracture Model
SO JOURNAL OF THE AMERICAN ASSOCIATION FOR LABORATORY ANIMAL SCIENCE
LA English
DT Article
ID PERIPHERAL-NERVE BLOCKS; VISUAL ANALOG SCALE; SCIATIC-NERVE;
BRACHIAL-PLEXUS; INTRANEURAL INJECTION; YOUNG-PIGS; PAIN; BUPRENORPHINE;
DOGS; BUPIVACAINE
AB Management of pain in research swine used for studies involving painful procedures is a considerable challenge. Here we assessed whether a regional anesthesia method is effective for pain control of hindlimb injuries in pigs used for research in bone fracture healing. For this randomized controlled study, we administered regional anesthesia before an experimental femoral injury was produced. Using ultrasound guidance, we placed sterile infusion catheters near the sciatic and femoral nerves and administered local anesthetic (bupivacaine) for the first 24 h after surgery. We evaluated various behavioral and physiologic parameters to test the hypothesis that this regional anesthesia would provide superior analgesia compared with systemic analgesia alone. We also collected blood samples to evaluate serum levels of cortisol and fentanyl postoperatively. At the end of the study period, we collected sciatic and femoral nerves and surrounding soft tissues for histopathologic evaluation. Treatment pigs had lower subjective pain scores than did control animals. Control pigs had a longer time to first feed consumption and required additional analgesia earlier in the postoperative period than did treatment pigs. Ultrasound-guided regional anesthesia is a viable and effective adjunct to systemic analgesics for providing pain control in swine with experimental femoral fractures.
C1 [Royal, Joseph M.; Settle, Timothy L.] Uniformed Serv Univ Hlth Sci, Ctr Lab Anim Med, Bethesda, MD 20814 USA.
[Bodo, Michael] Uniformed Serv Univ Hlth Sci, Dept Anat Physiol & Genet, Bethesda, MD 20814 USA.
[Bodo, Michael; Rothwell, Stephen W.] USN, Med Res Ctr, Silver Spring, MD USA.
[Lombardini, Eric] Armed Forces Radiobiol Res Inst, Div Comparat Pathol, Bethesda, MD USA.
[Kent, Michael L.; Upp, Justin] Walter Reed Natl Mil Med Ctr, Dept Anesthesiol, Bethesda, MD USA.
RP Royal, JM (reprint author), Uniformed Serv Univ Hlth Sci, Ctr Lab Anim Med, Bethesda, MD 20814 USA.
EM jroyal@usuhs.edu
FU US Army Military Research and Materiel Command, Ft Detrick
[W81XWH-09-2-0179]; Uniformed Services University of the Health
Sciences, Bethesda [R0702A, CO22AA]
FX This research project was supported by funding from the US Army Military
Research and Materiel Command, Ft Detrick (W81XWH-09-2-0179) and by the
Uniformed Services University of the Health Sciences, Bethesda (grants
R0702A and CO22AA). We thank the Department of Laboratory Animal
Medicine veterinary and animal care staff for animal care support, Ms K
Brady and Dr D Larsen for technical assistance, Dr C Olsen for
statistical consultation, and SSgt E Stewart and Mr B Johnson for their
preparation of histopathologic specimens.
NR 72
TC 3
Z9 3
U1 0
U2 12
PU AMER ASSOC LABORATORY ANIMAL SCIENCE
PI MEMPHIS
PA 9190 CRESTWYN HILLS DR, MEMPHIS, TN 38125 USA
SN 1559-6109
J9 J AM ASSOC LAB ANIM
JI J. Amer. Assoc. Lab. Anim. Sci.
PD MAY
PY 2013
VL 52
IS 3
BP 265
EP 276
PG 12
WC Veterinary Sciences; Zoology
SC Veterinary Sciences; Zoology
GA 146NQ
UT WOS:000319098200007
PM 23849409
ER
PT J
AU Bruno, J
Lu, MD
Deng, YH
Prucnal, P
AF Bruno, Jonathan
Lu, Maddie
Deng, Yanhua
Prucnal, Paul
TI Broadband optical cosite interference cancellation
SO OPTICAL ENGINEERING
LA English
DT Article
DE microwave photonics; radio over fiber; radio frequency photonics; cosite
interference; counter-phase modulation.
ID MICROWAVE PHOTONICS
AB Here, we provide an overview of broadband cosite interference reduction using an optical system to perform incoherent counter-phase modulation and subtraction. The equation governing interference cancellation depth is derived and discussed with respect to two key parameters, attenuation and delay accuracy. Cancellation depth is then examined with respect to signal bandwidth and device parameters to provide a context for predicted cancellation performance. Experimentally recorded interference cancellation data is presented along with predicted performance to show the agreement of theory and data. (C) 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
C1 [Bruno, Jonathan] USN, Res Lab, Washington, DC 20375 USA.
[Lu, Maddie; Deng, Yanhua; Prucnal, Paul] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA.
RP Bruno, J (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM jonathan.bruno@nrl.navy.mil
FU STTR [339-6463]
FX The authors would like to thank Jason D. McKinney for helpful
discussions. This work is supported by STTR Grant # 339-6463.
NR 16
TC 2
Z9 2
U1 0
U2 2
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 0091-3286
J9 OPT ENG
JI Opt. Eng.
PD MAY
PY 2013
VL 52
IS 5
AR 053001
DI 10.1117/1.OE.52.5.053001
PG 5
WC Optics
SC Optics
GA 151EI
UT WOS:000319443100010
ER
PT J
AU Oh, E
Fatemi, FK
Currie, M
Delehanty, JB
Pons, T
Fragola, A
Leveque-Fort, S
Goswami, R
Susumu, K
Huston, AL
Medintz, IL
AF Oh, Eunkeu
Fatemi, Fredrik K.
Currie, Marc
Delehanty, James B.
Pons, Thomas
Fragola, Alexandra
Leveque-Fort, Sandrine
Goswami, Ramasis
Susumu, Kimihiro
Huston, Alan L.
Medintz, Igor L.
TI PEGylated Luminescent Gold Nanoclusters: Synthesis, Characterization,
Bioconjugation, and Application to One- and Two-Photon Cellular Imaging
SO PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
LA English
DT Article
DE gold nanoclusters; fluorescence lifetimes; two photon absorption;
cellular imaging; bioconjugation; nanocrystals
ID SEMICONDUCTOR QUANTUM DOTS; DIRECTED SYNTHESIS; NANOPARTICLES;
FLUORESCENCE; SIZE; CLUSTERS; LIGANDS; CELLS; STABILITY; DELIVERY
AB Biocompatible, near-infrared luminescent gold nanoclusters (AuNCs) are synthesized directly in water using poly(ethylene glycol)-dithiolane ligands terminating in either a carboxyl, amine, azide, or methoxy group. The approximate to 1.5 nm diameter AuNCs fluoresce at approximate to 820 nm with quantum yields that range from 4-8%, depending on the terminal functional group present, and display average luminescence lifetimes approaching 1.5 s. The two-photon absorption (TPA) cross-section and two-photon excited fluorescence (TPEF) properties are also measured. Long-term testing shows the poly(ethylene glycol) stabilized AuNCs maintain colloidal stability in a variety of media ranging from saline to tissue culture growth medium along with tolerating storage of up to 2 years. DNA and dye-conjugation reactions confirm that the carboxyl, amine, and azide groups can be utilized on the AuNCs for carbodiimide, succinimidyl ester, and CuI-assisted cycloaddition chemistry, respectively. High signal-to-noise one- and two-photon cellular imaging is demonstrated. The AuNCs exhibit outstanding photophysical stability during continuous-extended imaging. Concomitant cellular viability testing shows that the AuNCs also elicit minimal cytotoxicity. Further biological applications for these luminescent nanoclustered materials are discussed.
C1 [Oh, Eunkeu; Fatemi, Fredrik K.; Currie, Marc; Susumu, Kimihiro; Huston, Alan L.] USN, Res Lab, Opt Sci Div, Washington, DC 20375 USA.
[Oh, Eunkeu; Susumu, Kimihiro] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
[Delehanty, James B.; Medintz, Igor L.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Pons, Thomas; Fragola, Alexandra] Univ Paris 06, CNRS, ESPCI, Lab Phys & Etud Mat,UMR8213, F-75005 Paris, France.
[Leveque-Fort, Sandrine] Univ Paris 11, CNRS, ISMO, UMR8214, F-91405 Orsay, France.
[Goswami, Ramasis] USN, Res Lab, Washington, DC 20375 USA.
RP Oh, E (reprint author), USN, Res Lab, Opt Sci Div, Code 5600, Washington, DC 20375 USA.
EM Eunkeuoh@ccs.nrl.navy.mil; Igor.Medintz@nrl.navy.mil
RI Pons, Thomas/A-8667-2008
OI Pons, Thomas/0000-0001-8800-4302
FU Office of Naval Research (ONR); Naval Research Laboratory (NRL); NRL
Nanosciences Institute (NSI); Defense Advanced Research Projects Agency
(DARPA); Defense Threat Reduction Agency Joint Science and Technological
Office (DTRA-JSTO) Military Interdepartmental Purchase Requisition
(MIPR) [B112582M]
FX The authors acknowledge support from the Office of Naval Research (ONR),
the Naval Research Laboratory (NRL), the NRL Nanosciences Institute
(NSI), the Defense Advanced Research Projects Agency (DARPA) and the
Defense Threat Reduction Agency Joint Science and Technological Office
(DTRA-JSTO) Military Interdepartmental Purchase Requisition (MIPR)
#B112582M. The authors thank John Macklin at the Howard Hughes Medical
Institute for assistance with photophysical characterization.
NR 53
TC 41
Z9 41
U1 12
U2 115
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 0934-0866
J9 PART PART SYST CHAR
JI Part. Part. Syst. Charact.
PD MAY
PY 2013
VL 30
IS 5
BP 453
EP 466
DI 10.1002/ppsc.201200140
PG 14
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 152HK
UT WOS:000319522400007
ER
PT J
AU Carstairs, SD
Kreshak, AA
Tanen, DA
AF Carstairs, Shaun D.
Kreshak, Allyson A.
Tanen, David A.
TI Crotaline Fab Antivenom Reverses Platelet Dysfunction Induced by
Crotalus scutulatus Venom: An In Vitro Study
SO ACADEMIC EMERGENCY MEDICINE
LA English
DT Article
ID MOHAVE RATTLESNAKE; THROMBOCYTOPENIA; AGGREGATION
AB Background Patients sustaining rattlesnake envenomation often develop thrombocytopenia, the etiology of which is not clear. Laboratory studies have demonstrated that venom from several species, including the Mojave rattlesnake(Crotalus scutulatus scutulatus), can inhibit platelet aggregation. In humans, administration of crotaline Fab antivenom has been shown to result in transient improvement of platelet levels; however, it is not known whether platelet aggregation also improves after antivenom administration. Objectives The objective was to determine the effect of C. scutulatus venom on platelet aggregation in vitro in the presence and absence of crotaline Fab antivenom. Methods Blood was obtained from four healthy male adult volunteers not currently using aspirin, nonsteroidal anti-inflammatory drugs, or other platelet-inhibiting agents. C. scutulatus venom from a single snake with known type B (hemorrhagic) activity was obtained from the National Natural Toxins Research Center. Measurement of platelet aggregation by an aggregometer was performed using five standard concentrations of epinephrine (a known platelet aggregator) on platelet-rich plasma over time, and a mean area under the curve (AUC) was calculated. Five different sample groups were measured: 1) blood alone, 2) blood + C. scutulatus venom (0.3mg/mL), 3) blood + crotaline Fab antivenom (100mg/mL), 4) blood + venom + antivenom (100mg/mL), and 5) blood + venom + antivenom (4mg/mL). Standard errors of the mean (SEM) were calculated for each group, and paired t-tests were used to measure differences between groups. Results Antivenom administration by itself (group 2) did not significantly affect platelet aggregation compared to baseline (103.8%, SEM +/- 3.4%, p=0.47). Administration of venom (group 3) decreased platelet aggregation (72.0%, SEM +/- 8.5%, p<0.05). Concentrated antivenom administration in the presence of venom (group 4) normalized platelet aggregation (101.4%, SEM +/- 6.8%) and in the presence of diluted antivenom (group 5) significantly increased aggregation (133.9%, SEM +/- 9.0%; p<0.05 for both groups when compared to the venom-only group). To further assess the effects of the venom and antivenom, each was run independently in platelet-rich plasma without epinephrine; neither was found to significantly alter platelet aggregation in the absence of epinephrine. Conclusions Crotaline Fab antivenom improved platelet aggregation in an in vitro model of platelet dysfunction induced by venom from C. scutulatus. It is unclear at this time whether this improvement in platelet dysfunction translates into improved clinical outcomes in envenomated patients. (C) 2013 by the Society for Academic Emergency Medicine
C1 [Carstairs, Shaun D.; Kreshak, Allyson A.; Tanen, David A.] USN, Med Ctr, Dept Emergency Med, San Diego, CA 92152 USA.
RP Carstairs, SD (reprint author), USN, Med Ctr, Dept Emergency Med, San Diego, CA 92152 USA.
EM shaunc@yahoo.com
OI Carstairs, Shaun/0000-0003-4558-9704
NR 12
TC 0
Z9 0
U1 0
U2 7
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1069-6563
J9 ACAD EMERG MED
JI Acad. Emerg. Med.
PD MAY
PY 2013
VL 20
IS 5
BP 522
EP 525
DI 10.1111/acem.12135
PG 4
WC Emergency Medicine
SC Emergency Medicine
GA 144GO
UT WOS:000318927900014
PM 23672368
ER
PT J
AU Long, JW
Chervin, CN
Kucko, NW
Nelson, ES
Rolison, DR
AF Long, Jeffrey W.
Chervin, Christopher N.
Kucko, Nathan W.
Nelson, Eric S.
Rolison, Debra R.
TI Dual-Function Air Cathode for MetalAir Batteries with Pulse-Power
Capability
SO ADVANCED ENERGY MATERIALS
LA English
DT Article
DE metalair battery; electrochemical capacitor; pseudocapacitance; oxygen
reduction; manganese oxide
ID OXYGEN REDUCTION; ELECTROCATALYTIC ACTIVITY; ELECTROLESS DEPOSITION;
MANGANESE OXIDES; ENERGY-STORAGE; NANOSCALE MNO2; NANOARCHITECTURES;
MECHANISM
C1 [Long, Jeffrey W.; Chervin, Christopher N.; Kucko, Nathan W.; Nelson, Eric S.; Rolison, Debra R.] USN, Res Lab, Surface Chem Branch, Washington, DC 20375 USA.
RP Long, JW (reprint author), USN, Res Lab, Surface Chem Branch, Coed 6170,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM jeffrey.long@nrl.navy.mil; rolison@nrl.navy.mi
RI Kucko, Nathan/K-8589-2015
FU U.S. Office of Naval Research
FX Financial support for this work is provided by the U.S. Office of Naval
Research. The authors thank Dr. Megan B. Sassin (U.S. Naval Research
Laboratory) for creating the schematic shown in Figure 1.
NR 27
TC 4
Z9 4
U1 1
U2 31
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1614-6832
J9 ADV ENERGY MATER
JI Adv. Energy Mater.
PD MAY
PY 2013
VL 3
IS 5
BP 584
EP 588
DI 10.1002/aenm.201200921
PG 5
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary; Physics, Applied; Physics, Condensed Matter
SC Chemistry; Energy & Fuels; Materials Science; Physics
GA 141YC
UT WOS:000318761500006
ER
PT J
AU Lin, EC
Mall, NA
Dhawan, A
Sherman, SL
McGill, KC
Provencher, MT
Nicholson, GP
Cole, BJ
Solomon, DJ
Verma, NN
Romeo, AA
AF Lin, Emery C.
Mall, Nathan A.
Dhawan, Aman
Sherman, Seth L.
McGill, Kevin C.
Provencher, Matthew T.
Nicholson, Gregory P.
Cole, Brian J.
Solomon, Daniel J.
Verma, Nikhil N.
Romeo, Anthony A.
TI Arthroscopic Primary Rotator Cuff Repairs in Patients Aged Younger Than
45 Years
SO ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY
LA English
DT Article
ID FULL-THICKNESS TEARS; HAND-HELD DYNAMOMETRY; ASYMPTOMATIC VOLUNTEERS;
SURGICAL-TREATMENT; FOLLOW-UP; SHOULDER; TENDON; SUPRASPINATUS;
RELIABILITY; INTEGRITY
AB Purpose: The purpose of this study was to evaluate the mechanism of injury, patient characteristics, tear size, and clinical outcomes after arthroscopic primary rotator cuff repair of full-thickness tears in patients aged younger than 45 years. Methods: A total of 70 consecutive patients were reviewed in a retrospective, multicenter (2 institutions) study evaluating prospectively collected data. Fifty-three patients, with a mean age of 37.5 years (range, 16.2 to 44.9 years), were available for follow-up at a mean of 35.8 months (range, 13.8 to 59.1 months). Exclusion criteria included patients with revision procedures, repair of partial tears, and follow-up of less than 12 months. Follow-up evaluation included physical examination with dynamometer strength testing and clinical outcome measures including the Single Assessment Numeric Evaluation score, American Shoulder and Elbow Surgeons (ASES) score, Constant-Murley score, pain score on a visual analog scale, and Simple Shoulder Test score. Results: A total of 60% of the patients (32 of 53) had a traumatic etiology, with 38% (12 of 32) of these related to an athletic event. Of the tears, 36 (68%) were medium tears. Concomitant procedures performed at the time of rotator cuff repair included acromioplasty (51), biceps tenodesis or tenotomy (24), distal clavicle excision (10), anteroinferior stabilization (2), and labral repair (1). The mean postoperative ASES score was 84.6 (range, 21.6 to 100.0), with 2 patients recording ASES scores of less than 50 (21.7 and 41.7) at final follow-up. In the 38 patients available for clinical follow-up examination, forward flexion improved from 158.7 degrees (range, 45 degrees to 180 degrees) to 168.4 degrees (range, 120 degrees to 180 degrees) (P = .014). At the time of follow-up, no patients had undergone revision surgery. On the basis of poor clinical outcome scores, 2 patients (4.0%) were considered failures. Conclusions: Arthroscopic primary rotator cuff repair of full-thickness tears in patients aged younger than 45 years results in improved outcomes with regard to pain, subjective patient satisfaction, and shoulder function. Level of Evidence: Level IV, therapeutic case series.
C1 [Lin, Emery C.; Mall, Nathan A.; Dhawan, Aman; Sherman, Seth L.; McGill, Kevin C.; Nicholson, Gregory P.; Cole, Brian J.; Verma, Nikhil N.; Romeo, Anthony A.] Rush Univ, Med Ctr, Dept Orthopaed Surg, Chicago, IL 60612 USA.
[Provencher, Matthew T.; Solomon, Daniel J.] USN, Dept Orthopaed Surg, Med Ctr, San Diego, CA 92152 USA.
RP Verma, NN (reprint author), Rush Univ, Med Ctr, Dept Orthopaed Surg, 1611 W Harrison St,Ste 300, Chicago, IL 60612 USA.
EM nikhil.verma@rushortho.com
OI Romeo, Anthony/0000-0003-4848-3411
NR 34
TC 11
Z9 11
U1 1
U2 8
PU W B SAUNDERS CO-ELSEVIER INC
PI PHILADELPHIA
PA 1600 JOHN F KENNEDY BOULEVARD, STE 1800, PHILADELPHIA, PA 19103-2899 USA
SN 0749-8063
J9 ARTHROSCOPY
JI Arthroscopy
PD MAY
PY 2013
VL 29
IS 5
BP 811
EP 817
DI 10.1016/j.arthro.2013.01.015
PG 7
WC Orthopedics; Surgery
SC Orthopedics; Surgery
GA 145SW
UT WOS:000319038900004
PM 23510942
ER
PT J
AU Huang, L
Lambrakos, SG
Shabaev, A
Massa, L
Yapijakis, C
AF Huang, L.
Lambrakos, S. G.
Shabaev, A.
Massa, L.
Yapijakis, C.
TI THz Absorption Spectra of Fe Water Complexes Interacting with O-3
Calculated by Density Functional Theory
SO JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
LA English
DT Article
DE advanced characterization; chemical analysis; modeling processes
ID GAUSSIAN-BASIS SETS; TERAHERTZ SPECTROSCOPY; EXPLOSIVES; ENERGY; OZONE
AB The need for better monitoring of water quality and levels of water contamination implies a need for determining the dielectric response properties of water contaminants with respect to electromagnetic wave excitation. In addition to monitoring contaminants, there is an associated need for monitoring chemical processes that are for deactivation or assistance in the removal of water contaminants. Iron and manganese are two naturally occurring water contaminants, where iron is in general at much higher concentrations. Correspondingly, a process that is highly effective for assisting filtration of water contaminants, including iron and manganese, is the addition in solution of Ozone, i.e., the preozonation process. The present study uses density functional theory (DFT) for the calculation of ground-state resonance structure associated with Fe water complexes interacting with Ozone in solution. The calculations presented are for excitation by electromagnetic waves at frequencies within the THz range. Dielectric response functions can provide for different types of analyses concerning water contaminants. In particular, dielectric response functions can provide quantitative initial estimates of spectral response features for subsequent adjustment with respect to additional information such as laboratory measurements and other types of theory-based calculations. In addition, with respect to qualitative analysis, DFT-calculated absorption spectra provide for molecular level interpretation of response structure. The DFT software GAUSSIAN was used for the calculations of ground-state resonance structure presented in this article.
C1 [Huang, L.; Lambrakos, S. G.] USN, Res Lab, Washington, DC 20375 USA.
[Shabaev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Massa, L.] CUNY Hunter Coll, New York, NY 10021 USA.
[Yapijakis, C.] Cooper Union Adv Sci & Art, Albert Nerkin Sch Engn, New York, NY USA.
RP Huang, L (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM samuel.lambrakos@nrl.navy.mil
FU Office of Naval Research
FX This study was supported by the Office of Naval Research. S. G. L would
like to thank the School of Engineering at the Cooper Union for its
continued collaboration concerning water filtration processes. C. Y.
wishes to acknowledge The Cooper Union, and in particular the School of
Engineering, for granting him a sabbatical (fall 2010), during which
time the idea of the present project was developed. Finally, this study
was accomplished using resources of the DoD High Performance Computing
Modernization Program.
NR 34
TC 0
Z9 0
U1 1
U2 19
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1059-9495
EI 1544-1024
J9 J MATER ENG PERFORM
JI J. Mater. Eng. Perform.
PD MAY
PY 2013
VL 22
IS 5
BP 1242
EP 1256
DI 10.1007/s11665-012-0430-x
PG 15
WC Materials Science, Multidisciplinary
SC Materials Science
GA 126WL
UT WOS:000317652800004
ER
PT J
AU Huang, L
Lambrakos, SG
Shabaev, A
Massa, L
Yapijakis, C
AF Huang, L.
Lambrakos, S. G.
Shabaev, A.
Massa, L.
Yapijakis, C.
TI THz Absorption Spectra of Fe and Mg Water Complexes Calculated by
Density Functional Theory
SO JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
LA English
DT Article
DE advanced characterization; chemical analysis; modeling processes
ID GAUSSIAN-BASIS SETS; AB-INITIO; TERAHERTZ SPECTROSCOPY; CLUSTER ANIONS;
MAGNESIUM; EXPLOSIVES; HYDRATION; ENERGY; IONS
AB Monitoring of water contaminants implies a need for determining their dielectric response properties with respect to electromagnetic wave excitation at various frequencies. Iron is a naturally occurring water contaminant, which is the result of decaying vegetation and is at much higher concentrations than any other metal contaminant. The present study uses density functional theory (DFT) for the calculation of ground state resonance structure and stability analysis of Fe water complexes. The calculations presented are for excitation by electromagnetic waves at frequencies within the THz range. Dielectric response functions calculated by DFT can be used for the analysis of water contaminants. These functions provide quantitative initial estimates of spectral response features for subsequent adjustment with respect to additional information such as laboratory measurements and other types of theory-based calculations. In addition, with respect to qualitative analysis, DFT calculated absorption spectra provide for molecular level interpretation of response structure. The DFT software GAUSSIAN was used for the calculations of ground state resonance structure presented here.
C1 [Huang, L.; Lambrakos, S. G.] USN, Res Lab, Washington, DC 20375 USA.
[Shabaev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Massa, L.] CUNY Hunter Coll, New York, NY 10021 USA.
[Yapijakis, C.] Albert Nerkin Sch Engn, New York, NY USA.
RP Huang, L (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM samuel.lambrakos@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. S. G. L would
like to thank the School of Engineering at the Cooper Union for its
continued collaboration concerning water filtration processes. C.Y.
wishes to acknowledge The Cooper Union, and in particular the School of
Engineering, for granting him a sabbatical (fall 2010), during which
time the idea of the present project was developed. Finally, this study
was accomplished using resources of the DoD High Performance Computing
Modernization Program.
NR 42
TC 0
Z9 0
U1 1
U2 20
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1059-9495
EI 1544-1024
J9 J MATER ENG PERFORM
JI J. Mater. Eng. Perform.
PD MAY
PY 2013
VL 22
IS 5
BP 1257
EP 1267
DI 10.1007/s11665-012-0431-9
PG 11
WC Materials Science, Multidisciplinary
SC Materials Science
GA 126WL
UT WOS:000317652800005
ER
PT J
AU Lennon, RP
Saguil, A
Seehusen, DA
Reamy, BV
Stephens, MB
AF Lennon, Robert P.
Saguil, Aaron
Seehusen, Dean A.
Reamy, Brian V.
Stephens, Mark B.
TI The Military Health System: A Community of Solutions for Medical
Education, Health Care Delivery, and Public Health
SO JOURNAL OF THE AMERICAN BOARD OF FAMILY MEDICINE
LA English
DT Article
DE Community Medicine; Delivery of Health Care; Medical Education; Military
Medicine; Public Health
AB Multiple strategies have been proposed to improve health care in the United States. These include the development of communities of solution (COSs), implementation of patient-centered medical homes (PCMHs), and lengthening family medicine residency training. There is scant literature on how to build and integrate these ideal models of care, and no literature about how to build a model of care integrating all 3 strategies is available. The Military Health System has adopted the PCMH model and will offer some 4-year family medicine residency positions starting in 2013. Lengthening residency training to 4 years represents an unprecedented opportunity to weave experiential COS instruction throughout a family physician's graduate medical education, providing future family physicians the skills needed to foster a COS in their future practice. This article describes our COS effort to synergize 3 aspects of modern military medicine: self-defined community populations, the transition to the PCMH model, and the initiation of the 4-year length of training pilot program in family medicine residency training. In this way we provide a starting point and general how-to guide that can be used to create a COS integrated with other current concepts in medicine.
C1 [Lennon, Robert P.] USN Hosp, Jacksonville Family Med Residency Program, Jacksonville, FL 32214 USA.
[Saguil, Aaron; Seehusen, Dean A.] Ft Belvoir Community Hosp, Natl Capital Consortium Family Med Residency, Ft Belvoir, VA USA.
[Reamy, Brian V.; Stephens, Mark B.] Uniformed Serv Univ Hlth Sci, F Edward Hebert Sch Med, Dept Family Med, Bethesda, MD 20814 USA.
RP Lennon, RP (reprint author), USN Hosp, Jacksonville Family Med Residency Program, Jacksonville, FL 32214 USA.
EM rlennon77@yahoo.com
RI Stephens, Mark/A-2679-2015
NR 10
TC 1
Z9 1
U1 0
U2 11
PU AMER BOARD FAMILY MEDICINE
PI LEXINGTON
PA 2228 YOUNG DR, LEXINGTON, KY 40505 USA
SN 1557-2625
J9 J AM BOARD FAM MED
JI J. Am. Board Fam. Med.
PD MAY-JUN
PY 2013
VL 26
IS 3
BP 264
EP 270
DI 10.3122/jabfm.2013.03.120192
PG 7
WC Primary Health Care; Medicine, General & Internal
SC General & Internal Medicine
GA 142AR
UT WOS:000318768600008
PM 23657694
ER
PT J
AU De Gregorio, BT
Stroud, RM
Nittler, LR
Alexander, CMO
Bassim, ND
Cody, GD
Kilcoyne, ALD
Sandford, SA
Milam, SN
Nuevo, M
Zega, TJ
AF De Gregorio, Bradley T.
Stroud, Rhonda M.
Nittler, Larry R.
Alexander, Conel M. O'D
Bassim, Nabil D.
Cody, George D.
Kilcoyne, A. L. David
Sandford, Scott A.
Milam, Stefanie N.
Nuevo, Michel
Zega, Thomas J.
TI Isotopic and chemical variation of organic nanoglobules in primitive
meteorites
SO METEORITICS & PLANETARY SCIENCE
LA English
DT Article
ID INTERPLANETARY DUST PARTICLES; TAGISH LAKE METEORITE; CARBONACEOUS
CHONDRITES; MURCHISON METEORITE; SOLAR-SYSTEM; INTERSTELLAR CHEMISTRY;
AROMATIC-HYDROCARBONS; PRESOLAR GRAPHITE; NITROGEN ISOTOPE; N-14/N-15
RATIO
AB Organic nanoglobules are microscopic spherical carbon-rich objects present in chondritic meteorites and other astromaterials. We performed a survey of the morphology, organic functional chemistry, and isotopic composition of 184 nanoglobules in insoluble organic matter (IOM) residues from seven primitive carbonaceous chondrites. Hollow and solid nanoglobules occur in each IOM residue, as well as globules with unusual shapes and structures. Most nanoglobules have an organic functional chemistry similar to, but slightly more carboxyl-rich than, the surrounding IOM, while a subset of nanoglobules have a distinct, highly aromatic functionality. The range of nanoglobule N isotopic compositions was similar to that of nonglobular 15N-rich hotspots in each IOM residue, but nanoglobules account for only about one third of the total 15N-rich hotspots in each sample. Furthermore, many nanoglobules in each residue contained no 15N enrichment above that of bulk IOM. No morphological indicators were found to robustly distinguish the highly aromatic nanoglobules from those that have a more IOM-like functional chemistry, or to distinguish 15N-rich nanoglobules from those that are isotopically normal. The relative abundance of aromatic nanoglobules was lower, and nanoglobule diameters were greater, in more altered meteorites, suggesting the creation/modification of IOM-like nanoglobules during parent-body processing. However, 15N-rich nanoglobules, including many with highly aromatic functional chemistry, likely reflect preaccretionary isotopic fractionation in cold molecular cloud or protostellar environments. These data indicate that no single formation mechanism can explain all of the observed characteristics of nanoglobules, and their properties are likely a result of multiple processes occurring in a variety of environments.
C1 [De Gregorio, Bradley T.] Nova Res Inc, Alexandria, VA 22308 USA.
[De Gregorio, Bradley T.; Stroud, Rhonda M.; Bassim, Nabil D.] USN, Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
[Nittler, Larry R.; Alexander, Conel M. O'D] Carnegie Inst Sci, Dept Terr Magnetism, Washington, DC 20015 USA.
[Cody, George D.] Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA.
[Kilcoyne, A. L. David] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Sandford, Scott A.; Nuevo, Michel] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Milam, Stefanie N.] NASA, Astrochem Lab, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Nuevo, Michel] SETI Inst, Mountain View, CA 94043 USA.
[Zega, Thomas J.] Univ Arizona, Dept Planetary Sci, Lunar & Planetary Lab, Tucson, AZ 85721 USA.
RP De Gregorio, BT (reprint author), Nova Res Inc, Alexandria, VA 22308 USA.
EM bradley.degregorio.ctr@nrl.navy.mil
RI Milam, Stefanie/D-1092-2012; Alexander, Conel/N-7533-2013; De Gregorio,
Bradley/B-8465-2008; Kilcoyne, David/I-1465-2013; Stroud,
Rhonda/C-5503-2008
OI Milam, Stefanie/0000-0001-7694-4129; Alexander,
Conel/0000-0002-8558-1427; De Gregorio, Bradley/0000-0001-9096-3545;
Stroud, Rhonda/0000-0001-5242-8015
FU Office of Naval Research, NASA; NASA Astrobiology Institute; U.S.
Department of Energy; Natural Sciences and Engineering Research Council
of Canada; National Research Council Canada; Canadian Institutes of
Health Research; Province of Saskatchewan, Western Economic
Diversification Canada; University of Saskatchewan
FX We sincerely thank Drs. L. Remusat, G. Matrajt, N. Johnson, and
associate editor C. Floss for their constructive reviews. This work was
supported by the Office of Naval Research, NASA Cosmochemistry and
Origins of Solar Systems Programs, and the NASA Astrobiology Institute.
This research was conducted while the primary author held a National
Research Council Research Associateship at the U.S. Naval Research
Laboratory. Use of the Advanced Light Source was supported by the U.S.
Department of Energy. Use of the Canadian Light Source was supported by
the Natural Sciences and Engineering Research Council of Canada, the
National Research Council Canada, the Canadian Institutes of Health
Research, the Province of Saskatchewan, Western Economic Diversification
Canada, and the University of Saskatchewan.
NR 98
TC 15
Z9 15
U1 1
U2 28
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 MAY
PY 2013
VL 48
IS 5
BP 904
EP 928
DI 10.1111/maps.12109
PG 25
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 143OP
UT WOS:000318877300013
ER
PT J
AU Doerr, KH
Gue, KR
AF Doerr, Kenneth Howard
Gue, Kevin R.
TI A Performance Metric and Goal-Setting Procedure for Deadline-Oriented
Processes
SO PRODUCTION AND OPERATIONS MANAGEMENT
LA English
DT Article
DE metrics; goals; warehousing; deadlines; motivation
ID SERVICE GUARANTEE; SELF-EFFICACY; DIFFICULTY; MOTIVATION; MODERATOR;
OUTCOMES; SKILL; SIGMA; MODEL
AB A performance metric and goal-setting procedure is defined for an order fulfillment operation. In this operation, order requests arrive continuously, and filled orders are shipped at a specific time each day. The metric links the continuous operation of order fulfillment to the scheduled shipment times. To prescribe goals against the metric, a performance model is developed that incorporates the motivational effect of a goal. Goal-Setting Theory is used to establish the performance goal and to show how to match arriving orders to deadlines based on their arrival times and expected processing times. Monte Carlo simulation on data from a large distribution center is used to demonstrate that setting these two parameters in the light of motivational research yields quite different results than doing so with an intuitive method. Moreover, a motivational goal leads to better operational performance; that is, correctly setting up the metric causes more customers to receive their orders sooner.
C1 [Doerr, Kenneth Howard] USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
[Gue, Kevin R.] Auburn Univ, Dept Ind & Syst Engn, Auburn, AL 36849 USA.
RP Doerr, KH (reprint author), USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
EM khdoerr@nps.edu; Kevin.Gue@auburn.edu
OI Doerr, Kenneth/0000-0002-7763-7304
NR 44
TC 1
Z9 1
U1 1
U2 8
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1059-1478
J9 PROD OPER MANAG
JI Prod. Oper. Manag.
PD MAY-JUN
PY 2013
VL 22
IS 3
BP 726
EP 738
DI 10.1111/j.1937-5956.2012.01375.x
PG 13
WC Engineering, Manufacturing; Operations Research & Management Science
SC Engineering; Operations Research & Management Science
GA 144NZ
UT WOS:000318947800019
ER
PT J
AU Bliss, T
Werly, J
Iwasaki, T
Bart-Smith, H
AF Bliss, Thomas
Werly, Jeffrey
Iwasaki, Tetsuya
Bart-Smith, Hilary
TI Experimental Validation of Robust Resonance Entrainment for
CPG-Controlled Tensegrity Structures
SO IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY
LA English
DT Article
DE Automatic control; nonlinear control systems; resonance
ID CENTRAL PATTERN GENERATORS; DEPLOYMENT; MECHANISM; DYNAMICS; SYSTEMS;
OPTIMIZATION; OSCILLATIONS; MOVEMENTS; SIMULATOR; TOWERS
AB Rhythmic motion employed in animal locomotion is ultimately controlled by neuronal circuits known as central pattern generators (CPGs). It appears that these controllers produce efficient oscillatory command signals by entraining to a resonant gait via sensory feedback. This property is of great interest in the control of autonomous vehicles. In this paper, we experimentally validate synthesized CPG control of tensegrity structures. The prestressed cables in a tensegrity structure provide a method of simultaneous actuation and sensing, analogous to the biological motor control mechanism of regulating muscle stiffness through motoneuron activation and sensing the resulting motion by stretch receptors. A three-cell class-two tensegrity structure is designed, built, and modeled to predict the structure's dynamic response. The models are experimentally validated using open-loop control tests. Next, a simple CPG, called a reciprocal inhibition oscillator (RIO), is designed and synthesized in real time. The RIOs outputs are used as actuation commands, while sensory signals from the tensegrity are fed back to the RIO. Multiple controller configurations are tested to validate an RIO design method developed and reported in a complementary study. Finally, the tensegrity dynamics are perturbed by altering the mass of the tensegrity, and the robustness of RIO control is demonstrated through its ability to entrain to the perturbed system.
C1 [Bliss, Thomas] USN, Carderock Div, Ctr Surface Warfare, West Bethesda, MD 20817 USA.
[Werly, Jeffrey] USN, Air Syst Command, Lexington Pk, MD 20653 USA.
[Iwasaki, Tetsuya] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[Bart-Smith, Hilary] Univ Virginia, Charlottesville, VA 22903 USA.
RP Bliss, T (reprint author), USN, Carderock Div, Ctr Surface Warfare, West Bethesda, MD 20817 USA.
EM tkb2c@virginia.edu; jmw7se@virginia.edu; tiwasaki@ucla.edu;
hb8h@virginia.edu
FU Office of Naval Research through the MURI Program on Biologically
Inspired Autonomous Sea Vehicles [N00014-08-1-0642]; David and Lucille
Packard Foundation [2003-25897]; National Science Foundation
[NSF-0654070]; Achievement Rewards for College Scientists Metro
Washington Chapter; Virginia Space Grant Consortium
FX This work was supported in part by the Office of Naval Research through
the MURI Program on Biologically Inspired Autonomous Sea Vehicles under
Contract N00014-08-1-0642, in part by the David and Lucille Packard
Foundation under Contract 2003-25897, and in part by the National
Science Foundation under Contract NSF-0654070. The work of T. Bliss was
supported by the Achievement Rewards for College Scientists Metro
Washington Chapter and the Virginia Space Grant Consortium. Recommended
by Associate Editor L. D. Re.
NR 54
TC 8
Z9 8
U1 0
U2 11
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1063-6536
J9 IEEE T CONTR SYST T
JI IEEE Trans. Control Syst. Technol.
PD MAY
PY 2013
VL 21
IS 3
BP 666
EP 678
DI 10.1109/TCST.2012.2189400
PG 13
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA 139NZ
UT WOS:000318591000009
ER
PT J
AU Lee, ZP
Weidemann, A
Arnone, R
AF Lee, Zhongping
Weidemann, Alan
Arnone, Robert
TI Combined Effect of Reduced Band Number and Increased Bandwidth on
Shallow Water Remote Sensing: The Case of WorldView 2
SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
LA English
DT Article
DE Bathymetry; coastal water; remote sensing
ID OCEAN COLOR; IMAGERY; REFLECTANCE; MODEL; BATHYMETRY; COLUMN; PURE
AB WorldView 2 (WV2), launched in September 2009, is a satellite with hyperspatial resolution (similar to 0.5-2 m) capability for Earth surface observation. It has eight spectral bands with enhanced signal-to-noise ratio to cover the visible-to-near-infrared (V-NIR) domain, thus providing a great potential for remote sensing of coastal ecosystem, in particular, the aquatic environments with shallow bottoms (e. g., coral reefs and seagrass beds). Traditionally, it requires similar to 15 spectral bands in the V-NIR domain for reliable analytical retrieval of bottom properties (e. g., bathymetry) from remotely observed radiance spectrum. Data from WV2, however, have eight bands, and the width of each band is quite wide (similar to 50 nm or more). Thus, the spectral configuration of WV2 is far from optimal for spectral remote sensing of various complex shallow environments, and it is important and necessary to know how such a band setting affects the reliability of remote-sensing retrievals. Here, we applied a hyperspectral optimization scheme [hyperspectral optimization processing exemplar (HOPE)] to a simulated shallow-bottom data set (sandy bottom) and compared retrievals from both hyperspectral and WV2 spectral settings. Retrieved results suggest that, for bottom contribution making up 40% or more of the measured signal, the depths derived from both hyperspectral and WV2 settings are generally consistent for waters shallower than 5 m. However, depths derived with WV2 setting have greater uncertainty and, in general, are shallower than those derived from the hyperspectral setting, particularly for waters deeper than 10 m. Options to produce higher confident properties from such band settings are discussed.
C1 [Lee, Zhongping] Univ Massachusetts, Dept Environm Earth & Ocean Sci, Boston, MA 02125 USA.
[Weidemann, Alan; Arnone, Robert] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Lee, ZP (reprint author), Univ Massachusetts, Dept Environm Earth & Ocean Sci, Boston, MA 02125 USA.
EM zhongping.lee@umb.edu; alan.weidemann@nrlssc.navy.mil;
bob.arnone@nrlssc.navy.mil
FU Naval Research Laboratory
FX This work was supported by the Naval Research Laboratory.
NR 31
TC 5
Z9 5
U1 2
U2 48
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0196-2892
J9 IEEE T GEOSCI REMOTE
JI IEEE Trans. Geosci. Remote Sensing
PD MAY
PY 2013
VL 51
IS 5
BP 2577
EP 2586
DI 10.1109/TGRS.2012.2218818
PN 1
PG 10
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA 137IJ
UT WOS:000318428700008
ER
PT J
AU Nydick, JA
Watt, JF
Garcia, MJ
Williams, BD
Hess, AV
AF Nydick, Jason A.
Watt, James F.
Garcia, Michael J.
Williams, Bailee D.
Hess, Alfred V.
TI Clinical Outcomes of Arthrodesis and Arthroplasty for the Treatment of
Posttraumatic Wrist Arthritis
SO JOURNAL OF HAND SURGERY-AMERICAN VOLUME
LA English
DT Article
DE Posttraumatic wrist arthritis; arthroplasty; arthrodesis
ID FAILED IMPLANT ARTHROPLASTY; RHEUMATOID-ARTHRITIS; PROSTHESES; SALVAGE;
FUSION; PLATE
AB Purpose To compare clinical outcomes of wrist arthrodesis and total wrist arthroplasty in the treatment of pancarpal posttraumatic arthritis. We hypothesized that arthroplasty would demonstrate better clinical outcomes than wrist arthrodesis.
Methods We performed a retrospective review of 22 patients treated (15 arthrodeses and 7 arthroplasties) for pancarpal posttraumatic arthritis. We measured clinical outcomes with the visual analog pain scale; Disabilities of the Arm, Shoulder, and Hand questionnaire; the Patient-Rated Wrist Evaluation; and a study-specific questionnaire. Postoperative complications were recorded from chart review.
Results Mean follow-up was 68 months for arthrodesis and 56 months for arthroplasty. The mean visual analog scale pain score was 2 for each group. The mean Disabilities of the Arm, Shoulder, and Hand score was 38 for the arthrodesis group and 29 for the arthroplasty group. The mean Patient-Rated Wrist Evaluation was 73 for the arthrodesis group and 31 for the arthroplasty group. The results from the study-specific questionnaire revealed that the majority of patients in both groups were satisfied. Complication rates were similar in both groups.
Conclusions Total wrist arthroplasty as an alternative to arthrodesis for the treatment of pancarpal posttraumatic arthritis may offer improved functional outcomes. (Copyright (C) 2013 by the American Society for Surgery of the Hand. All rights reserved.)
C1 Florida Orthopaed Inst, Tampa, FL USA.
Fdn Orthopaed Res & Educ, Tampa, FL USA.
[Nydick, Jason A.] USN Hosp, Pensacola, FL 32512 USA.
RP Nydick, JA (reprint author), USN Hosp, 6000 West Hwy 98, Pensacola, FL 32512 USA.
EM orthojason@me.com
NR 20
TC 10
Z9 10
U1 0
U2 4
PU W B SAUNDERS CO-ELSEVIER INC
PI PHILADELPHIA
PA 1600 JOHN F KENNEDY BOULEVARD, STE 1800, PHILADELPHIA, PA 19103-2899 USA
SN 0363-5023
J9 J HAND SURG-AM
JI J. Hand Surg.-Am. Vol.
PD MAY
PY 2013
VL 38A
IS 5
BP 899
EP 903
DI 10.1016/j.jhsa.2013.02.013
PG 5
WC Orthopedics; Surgery
SC Orthopedics; Surgery
GA 139KH
UT WOS:000318581100009
PM 23561729
ER
PT J
AU Au, WWL
Giorli, G
Chen, J
Copeland, A
Lammers, M
Richlen, M
Jarvis, S
Morrissey, R
Moretti, D
Klinck, H
AF Au, Whitlow W. L.
Giorli, Giacomo
Chen, Jessica
Copeland, Adrienne
Lammers, Marc
Richlen, Michael
Jarvis, Susan
Morrissey, Ronald
Moretti, David
Klinck, Holger
TI Nighttime foraging by deep diving echolocating odontocetes off the
Hawaiian islands of Kauai and Ni'ihau as determined by passive acoustic
monitors
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID FINNED PILOT WHALES; BEAKED-WHALES; MESOPLODON-DENSIROSTRIS; TEMPORAL
PATTERNS; RISSOS DOLPHIN; CROSS-SEAMOUNT; CLICKS; BEHAVIOR; SIGNALS;
SOUND
AB Remote autonomous ecological acoustic recorders (EARs) were deployed in deep waters at five locations around the island of Kauai and one in waters off Ni'ihau in the main Hawaiian island chain. The EARs were moored to the bottom at depths between 400 and 800 m. The data acquisition sampling rate was 80 kHz and acoustic signals were recorded for 30 s every 5 min to conserve battery power and disk space. The acoustic data were analyzed with the M3R (Marine Mammal Monitoring on Navy Ranges) software, an energy-ratio-mapping algorithm developed at Oregon State University and custom MATLAB programs. A variety of deep diving odontocetes, including pilot whales, Risso's dolphins, sperm whales, spinner and pan-tropical spotted dolphins, and beaked whales were detected at all sites. Foraging activity typically began to increase after dusk, peaked in the middle of the night and began to decrease toward dawn. Between 70% and 84% of biosonar clicks were detected at night. At present it is not clear why some of the known deep diving species, such as sperm whales and beaked whales, concentrate their foraging efforts at night. (C) 2013 Acoustical Society of America.
C1 [Au, Whitlow W. L.; Giorli, Giacomo; Chen, Jessica; Copeland, Adrienne; Lammers, Marc; Richlen, Michael] Univ Hawaii, Hawaii Inst Marine Biol, Kaneohe, HI 96744 USA.
[Jarvis, Susan; Morrissey, Ronald; Moretti, David] USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
[Klinck, Holger] Oregon State Univ, Cooperat Inst Marine Resources Studies, Newport, OR 97365 USA.
[Klinck, Holger] Natl Ocean & Atmospher Adm, Pacific Marine Environm Lab, Hatfield Marine Sci Ctr, Newport, OR 97365 USA.
RP Au, WWL (reprint author), Univ Hawaii, Hawaii Inst Marine Biol, Kaneohe, HI 96744 USA.
EM wau@hawaii.edu
FU Office of Naval Research [N00014-08-1-0903, N000141210271,
N00014-08-1-1082, N00014-10-1-0387, N00014-08-1-1198]; Naval
Postgraduate School [N00244-08-1-0029, N00244-09-1-0079,
N00244-10-1-0047]
FX This work was supported by Office of Naval Research grants
N00014-08-1-0903 and N000141210271 to W.A. (Michael Weise, program
manager). H.K. was supported by Naval Postgraduate School grants
N00244-08-1-0029, N00244-09-1-0079, and N00244-10-1-0047 (Robert Gisiner
and Frank Stone, program managers), and Office of Naval Research grants
N00014-08-1-1082, N00014-10-1-0387, and N00014-08-1-1198 (Michael Weise,
program manager). This is HIMB contribution# 1547 and SOEST
contribution# 8908.
NR 39
TC 15
Z9 15
U1 3
U2 45
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
EI 1520-8524
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD MAY
PY 2013
VL 133
IS 5
BP 3119
EP 3127
DI 10.1121/1.4798360
PN 1
PG 9
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 139BH
UT WOS:000318555900070
PM 23654414
ER
PT J
AU Ahmido, T
Ting, A
Misra, P
AF Ahmido, Tariq
Ting, Antonio
Misra, Prabhakar
TI Femtosecond laser-induced breakdown spectroscopy of surface nitrate
chemicals
SO APPLIED OPTICS
LA English
DT Article
ID REMOTE DETECTION; PULSES; EXPLOSIVES; LIBS; IDENTIFICATION; NANOSECOND;
PICOSECOND; AIR
AB Ultrashort laser-induced breakdown spectroscopy was used to detect the emission radiation from the breakdown of surface contaminants by a femtosecond laser pulse. This study focused on the detection of visible to near-infrared radiation signatures from molecular fragments of the nitro (NOx) group present in the breakdown plasma, where target chemicals of potassium nitrate (KNO3) and sodium nitrate (NaNO3) were used. Spectral signatures at a wavelength region around 410 nm were observed for both KNO3 and NaNO3, and were identified as the fluorescence transitions of the NOx-molecular structures. The signatures obtained were systematically analyzed and studied as functions of laser parameters. It is shown that for laser parameters used in this study, laser pulse durations >= 1 ps were not as effective as shorter pulses in generating these signatures. A visible wavelength NOx signature and the extended high-intensity propagation of a femtosecond laser could be advantageous to detecting nitro-group energetic materials at standoff distances. (C) 2013 Optical Society of America
C1 [Ahmido, Tariq; Misra, Prabhakar] Howard Univ, Dept Phys & Astron, Washington, DC 20059 USA.
[Ting, Antonio] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Ting, A (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM ting@nrl.navy.mil
FU NRL 6.1 ARI Program; GK12 Fellowship; ONR/Historically Black Engineering
Colleges (ONR/HBEC) Fellowship
FX The authors would like to acknowledge Drs. D. Kaganovich, M. Helle, T.
Jones, and Mr. G. DiComo for their help and useful discussions, and Dr.
A. Schulzgen for useful suggestions. This work was supported by the NRL
6.1 ARI Program. T. Ahmido has been supported by the GK12 Fellowship,
the ONR/Historically Black Engineering Colleges (ONR/HBEC) Fellowship,
and a Graduate Teaching Assistantship from the Department of Physics &
Astronomy at Howard University through the Graduate School of Arts &
Sciences.
NR 27
TC 4
Z9 4
U1 2
U2 35
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1559-128X
J9 APPL OPTICS
JI Appl. Optics
PD MAY 1
PY 2013
VL 52
IS 13
BP 3048
EP 3057
DI 10.1364/AO.52.003048
PG 10
WC Optics
SC Optics
GA 137FW
UT WOS:000318421900014
PM 23669773
ER
PT J
AU Klenk, M
Molineaux, M
Aha, DW
AF Klenk, Matthew
Molineaux, Matt
Aha, David W.
TI GOAL-DRIVEN AUTONOMY FOR RESPONDING TO UNEXPECTED EVENTS IN STRATEGY
SIMULATIONS
SO COMPUTATIONAL INTELLIGENCE
LA English
DT Article
DE goal-driven autonomy; autonomous agents; on-line planning; goal
reasoning
ID DOMAINS; AGENTS; SYSTEM
AB To operate autonomously in complex environments, an agent must monitor its environment and determine how to respond to new situations. To be considered intelligent, an agent should select actions in pursuit of its goals, and adapt accordingly when its goals need revision. However, most agents assume that their goals are given to them; they cannot recognize when their goals should change. Thus, they have difficulty coping with the complex environments of strategy simulations that are continuous, partially observable, dynamic, and open with respect to new objects. To increase intelligent agent autonomy, we are investigating a conceptual model for goal reasoning called Goal-Driven Autonomy (GDA), which allows agents to generate and reason about their goals in response to environment changes. Our hypothesis is that GDA enables an agent to respond more effectively to unexpected events in complex environments. We instantiate the GDA model in ARTUE (Autonomous Response to Unexpected Events), a domain-independent autonomous agent. We evaluate ARTUE on scenarios from two complex strategy simulations, and report on its comparative benefits and limitations. By employing goal reasoning, ARTUE outperforms an off-line planner and a discrepancy-based replanner on scenarios requiring reasoning about unobserved objects and facts and on scenarios presenting opportunities outside the scope of its current mission.
C1 [Klenk, Matthew; Aha, David W.] USN, Navy Ctr Appl Res Artificial Intelligence, Res Lab Code 5514, Washington, DC USA.
[Molineaux, Matt] Knexus Res Corp, Springfield, VA USA.
RP Klenk, M (reprint author), Xerox Corp, Palo Alto Res Ctr, 3333 Coyote Hill Rd, Palo Alto, CA 94304 USA.
EM matthew.klenk@parc.com
FU DARPA; NRC postdoctoral fellowship
FX Thanks to DARPA for funding this research, and PM Michael Cox for
inspiring work on this topic. The views and opinions contained in this
paper are those of the authors and should not be interpreted as
representing the official views or policies, either expressed or
implied, of NRL, DARPA, or the DoD. Matthew Klenk performed this
research while supported by an NRC postdoctoral fellowship.
NR 50
TC 5
Z9 5
U1 2
U2 7
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0824-7935
J9 COMPUT INTELL-US
JI Comput. Intell.
PD MAY
PY 2013
VL 29
IS 2
BP 187
EP 206
DI 10.1111/j.1467-8640.2012.00445.x
PG 20
WC Computer Science, Artificial Intelligence
SC Computer Science
GA 139EO
UT WOS:000318564800001
ER
PT J
AU Schulz, AS
Uhan, NA
AF Schulz, Andreas S.
Uhan, Nelson A.
TI Approximating the least core value and least core of cooperative games
with supermodular costs
SO DISCRETE OPTIMIZATION
LA English
DT Article
DE Cooperative games; Least core; Approximation algorithms; Scheduling;
Matroids
ID SCHEDULING INDEPENDENT TASKS; TOTALLY BALANCED GAMES; SPANNING TREE
GAMES; LOT-SIZING GAMES; BARGAINING SET; ALGORITHMS; COMPLEXITY;
NUCLEOLUS; ALLOCATION
AB We study the approximation of the least core value and the least core of supermodular cost cooperative games. We provide a framework for approximation based on oracles that approximately determine maximally violated constraints. This framework yields a 3-approximation algorithm for computing the least core value of supermodular cost cooperative games, and a polynomial-time algorithm for computing a cost allocation in the 2-approximate least core of these games. This approximation framework extends naturally to submodular profit cooperative games. For scheduling games, a special class of supermodular cost cooperative games, we give a fully polynomial-time approximation scheme for computing the least core value. For matroid profit games, a special class of submodular profit cooperative games, we give exact polynomial-time algorithms for computing the least core value as well as a least core cost allocation. Published by Elsevier B.V.
C1 [Schulz, Andreas S.] MIT, Alfred P Sloan Sch Management, Cambridge, MA 02142 USA.
[Schulz, Andreas S.] MIT, Ctr Operat Res, Cambridge, MA 02142 USA.
[Uhan, Nelson A.] USN Acad, Dept Math, Annapolis, MD 21402 USA.
RP Uhan, NA (reprint author), USN Acad, Dept Math, 572C Holloway Rd,Chauvenet Hall, Annapolis, MD 21402 USA.
EM schulz@mit.edu; uhan@usna.edu
FU National Science Foundation [DMI-0426686]
FX This research was supported by the National Science Foundation
(DMI-0426686).
NR 55
TC 3
Z9 4
U1 1
U2 11
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1572-5286
EI 1873-636X
J9 DISCRETE OPTIM
JI Discret. Optim.
PD MAY
PY 2013
VL 10
IS 2
BP 163
EP 180
DI 10.1016/j.disopt.2013.02.002
PG 18
WC Operations Research & Management Science; Mathematics, Applied
SC Operations Research & Management Science; Mathematics
GA 135ZU
UT WOS:000318330000006
ER
PT J
AU Gaglione, AM
Lipschutz, S
Spellman, D
AF Gaglione, Anthony M.
Lipschutz, Seymour
Spellman, Dennis
TI Baumslag's big powers in metabelian groups
SO JOURNAL OF GROUP THEORY
LA English
DT Article
AB Let G be a free metabelian group. Let C be the centralizer in G of an element g is an element of G \ {1}. Let (G) over cap be the corresponding free rank 1 centralizer extension of G relative to the variety M of metabelian groups. We find a matrix representation rho((G) over cap) and prove that rho((G) over cap) is discriminated by epimorphisms rho((G) over cap) -> G. We conjecture that rho is faithful in the case g is not an element of G'.
C1 [Gaglione, Anthony M.] USN Acad, Dept Math, Annapolis, MD 21402 USA.
[Lipschutz, Seymour] Temple Univ, Dept Math, Philadelphia, PA 19132 USA.
RP Gaglione, AM (reprint author), USN Acad, Dept Math, Annapolis, MD 21402 USA.
EM amg@usna.edu; seymour@temple.edu; chopperspellman@gmail.com
NR 11
TC 0
Z9 0
U1 0
U2 0
PU WALTER DE GRUYTER GMBH
PI BERLIN
PA GENTHINER STRASSE 13, D-10785 BERLIN, GERMANY
SN 1433-5883
J9 J GROUP THEORY
JI J. Group Theory
PD MAY
PY 2013
VL 16
IS 3
BP 445
EP 460
DI 10.1515/jgt-2012-0039
PG 16
WC Mathematics
SC Mathematics
GA 138FF
UT WOS:000318493500006
ER
PT J
AU Turk, D
Book, JW
McGillis, WR
AF Turk, D.
Book, J. W.
McGillis, W. R.
TI pCO(2) and CO2 exchange during high bora winds in the Northern Adriatic
SO JOURNAL OF MARINE SYSTEMS
LA English
DT Article
DE Coastal oceanography; Carbon dioxide; Air-sea exchanges; Winds
ID SEA; DYNAMICS
AB Episodic high wind events have a potential for significantly mixing surface water partial pressure of CO2 (pCO(2)). Their effect on estimates of air-sea CO2 flux, especially in the coastal ocean, has not been adequately assessed. Here we show the response of surface water pCO(2) and CO2 fluxes during high bora wind in the Northern Adriatic for a range of conditions including: stratified and oversaturated with respect to atmospheric CO2, stratified and undersaturated, and non-stratified and undersaturated. Three representative bora cases of 15-2 day duration with wind speeds over 10 m s(-1) indicate that in all three studied cases, regardless of pre-bora conditions, pCO(2) in the surface water increases by 30-50 mu atm and CO2 flux magnitudes peak up to 4 folds (-22.6 and -24.1 mmol m(-2) day(-1) day in the winter cases and 29 mmol m(-2) day(-1) in the summer case) over the magnitude of the mean annual value. Oceanic data measured simultaneously to surface pCO(2) measurements suggest that the most likely responsible mechanisms for the observed pCO(2) increases were oceanic vertical mixing and/or oceanic horizontal advection. Our study contributes to a very limited set of observations currently available on the biogeochemical response to episodic high wind events in coastal areas and their role in CO2 exchange. In such coastal environments the presence of shallow depths and short horizontal spatial scales of variation facilitate the exchange of pCO(2) both vertically within ocean layers and horizontally across ocean basins, which can then alter air-sea pCO(2) difference across the ocean surface during high wind events and affect gas exchange. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Turk, D.] Dalhousie Univ, Dept Oceanog, Halifax, NS B3H 4R2, Canada.
[Book, J. W.] USN, Div Oceanog, Res Lab, Stennis Space Ctr, MS 39529 USA.
[Turk, D.; McGillis, W. R.] Columbia Univ, Lamont Doherty Earth Observ, New York, NY 10027 USA.
RP Turk, D (reprint author), Dalhousie Univ, Dept Oceanog, 1355 Oxford St, Halifax, NS B3H 4R2, Canada.
EM daniela.turk@dal.ca
FU Marie Curie FP7-PEOPLE-IRG [239465]; Canada Excellence Research Chair
(CERC) in Ocean Science and Technology; Office of Naval Research
FX We gratefully acknowledge Marine Biology Station Piran (MBS) personnel
and V. Malacic and B. Petelin for help with data, logistics and
instrument deployment. Support was provided, in part, by the Canada
Excellence Research Chair (CERC) in Ocean Science and Technology and the
Marie Curie FP7-PEOPLE-IRG no. 239465. The work of J. W. Book was
supported by the Office of Naval Research. LDEO contribution #7666.
Special thanks to M. DeGrandpre for help with SAMI-CO2 sensor
and pCO2 data QC.
NR 25
TC 8
Z9 8
U1 1
U2 12
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0924-7963
J9 J MARINE SYST
JI J. Mar. Syst.
PD MAY
PY 2013
VL 117
BP 65
EP 71
DI 10.1016/j.jmarsys.2013.02.010
PG 7
WC Geosciences, Multidisciplinary; Marine & Freshwater Biology;
Oceanography
SC Geology; Marine & Freshwater Biology; Oceanography
GA 135CO
UT WOS:000318263800006
ER
PT J
AU Axtell, TW
Cristi, R
AF Axtell, Travis W.
Cristi, Roberto
TI Generalized orthogonal wavelet phase reconstruction
SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND
VISION
LA English
DT Article
ID ADAPTIVE OPTICS SYSTEMS; EXTREMELY LARGE TELESCOPES; FRONT
RECONSTRUCTION; MATHEMATICAL-THEORY; VARIANCE; COMMUNICATION; ALGORITHM;
FOURIER
AB Phase reconstruction is used for feedback control in adaptive optics systems. To achieve performance metrics for high actuator density or with limited processing capabilities on spacecraft, a wavelet signal processing technique is advantageous. Previous derivations of this technique have been limited to the Haar wavelet. This paper derives the relationship and algorithms to reconstruct phase with O(n) computational complexity for wavelets with the orthogonal property. This has additional benefits for performance with noise in the measurements. We also provide details on how to handle the boundary condition for telescope apertures.
C1 [Axtell, Travis W.; Cristi, Roberto] USN, Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA.
RP Axtell, TW (reprint author), USN, Postgrad Sch, Dept Elect & Comp Engn, Spanagel Hall,Room 437,833 Dyer Rd, Monterey, CA 93943 USA.
EM twaxtell@nps.edu
FU Department of Defense SMART Scholarship; Space and Naval Warfare Command
FX The authors acknowledge email communication with P. Hampton. This
research was performed with the Adaptive Optics Center of Excellence in
National Security, located at the Naval Postgraduate School. T. W.
Axtell was funded by the Department of Defense SMART Scholarship and
Space and Naval Warfare Command. Gratitude is also expressed to the
anonymous reviewers for their comments, which were crucial for improving
the quality of the paper.
NR 27
TC 1
Z9 1
U1 0
U2 7
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1084-7529
J9 J OPT SOC AM A
JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis.
PD MAY
PY 2013
VL 30
IS 5
BP 859
EP 870
DI 10.1364/JOSAA.30.000859
PG 12
WC Optics
SC Optics
GA 138FL
UT WOS:000318494100007
PM 23695316
ER
PT J
AU D'Ammando, F
Antolini, E
Tosti, G
Finke, J
Ciprini, S
Larsson, S
Ajello, M
Covino, S
Gasparrini, D
Gurwell, M
Hauser, M
Romano, P
Schinzel, F
Wagner, SJ
Impiombato, D
Perri, M
Persic, M
Pian, E
Polenta, G
Sbarufatti, B
Treves, A
Vercellone, S
Wehrle, A
Zook, A
AF D'Ammando, F.
Antolini, E.
Tosti, G.
Finke, J.
Ciprini, S.
Larsson, S.
Ajello, M.
Covino, S.
Gasparrini, D.
Gurwell, M.
Hauser, M.
Romano, P.
Schinzel, F.
Wagner, S. J.
Impiombato, D.
Perri, M.
Persic, M.
Pian, E.
Polenta, G.
Sbarufatti, B.
Treves, A.
Vercellone, S.
Wehrle, A.
Zook, A.
TI Long-term monitoring of PKS 0537-441 with Fermi-LAT and multiwavelength
observations
SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
LA English
DT Article
DE galaxies: active; BL Lacertae objects: general; BL Lacertae objects:
individual: PKS 0537-441; galaxies: quasars: general
ID BL-LACERTAE OBJECTS; LARGE-AREA TELESCOPE; ACTIVE GALACTIC NUCLEI;
X-RAY-SPECTRA; SOUTHERN RADIO-SOURCES; BLAZAR 3C 454.3; GAMMA-RAY;
COMPLETE SAMPLE; MULTIFREQUENCY OBSERVATIONS; ENERGY-DISTRIBUTION
AB We report on multiwavelength observations of the blazar PKS 0537-441 (z = 0.896) obtained from microwaves through gamma-rays by Submillimeter Array, Rapid Eye Mounting, Automatic Telescope for Optical Monitoring (ATOM), Swift and Fermi mostly during 2008 August-2010 April. Strong variability has been observed in gamma-rays, with two major flaring episodes (2009 July and 2010 March) and a harder-when-brighter behaviour, quite common for flat spectrum radio quasars and low-synchrotron-peaked BL Lacertae objects (BL Lacs), in 2010 March. In the same way, the spectral energy distribution (SED) of the source cannot be modelled by a simple synchrotron self-Compton model, as opposed to many BL Lacs, but the addition of an external Compton component of seed photons from a dust torus is needed. The 230 GHz light curve showed an increase simultaneous with the gamma-ray one, indicating co-spatiality of the mm and gamma-ray emission region likely at large distance from the central engine. The low, average, and high activity SED of the source could be fit changing only the electron distribution parameters, but two breaks in the electron distribution are necessary. The ensuing extra spectral break, located at near-infrared (NIR)-optical frequencies, together with that in gamma-rays seem to indicate a common origin, most likely due to an intrinsic feature in the underlying electron distribution. An overall correlation between the gamma-ray band with the R band and K band has been observed with no significant time lag. On the other hand, when inspecting the light curves on short time-scales some differences are evident. In particular, flaring activity has been detected in NIR and optical bands with no evident gamma-ray counterparts in 2009 September and November. Moderate variability has been observed in X-rays with no correlation between flux and photon index. An increase of the detected X-ray flux with no counterpart at the other wavelengths has been observed in 2008 October, suggesting once more a complex correlation between the emission at different energy bands.
C1 [D'Ammando, F.; Antolini, E.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[D'Ammando, F.; Antolini, E.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Finke, J.] USN, Res Lab, Washington, DC 20375 USA.
[Ciprini, S.; Gasparrini, D.; Perri, M.; Polenta, G.] ASI, Sci Data Ctr, I-00044 Rome, Italy.
[Larsson, S.] Stockholm Univ, Albanova, Dept Phys, SE-10691 Stockholm, Sweden.
[Larsson, S.] Albanova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Larsson, S.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Ajello, M.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
[Ajello, M.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Ajello, M.; Sbarufatti, B.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Covino, S.] Oss Astron Brera, INAF, I-23807 Merate, LC, Italy.
[Gurwell, M.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Hauser, M.; Wagner, S. J.] Heidelberg Univ, Landerssternwarte, D-69117 Heidelberg, Germany.
[Romano, P.; Impiombato, D.; Vercellone, S.] IASF Palermo, INAF, I-90146 Palermo, Italy.
[Schinzel, F.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Persic, M.; Pian, E.] OA Trieste, INAF, I-34127 Trieste, Italy.
[Persic, M.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Pian, E.] Scuola Normale Super Pisa, I-56126 Pisa, Italy.
[Polenta, G.] Oss Astron Roma, INAF, I-00040 Monte Porzio Catone, Italy.
[Sbarufatti, B.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Treves, A.] Univ Insubria, Dept Math & Phys, I-22100 Como, Italy.
[Wehrle, A.] Space Sci Inst, Boulder, CO 80301 USA.
[Zook, A.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
RP D'Ammando, F (reprint author), Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
EM dammando@ira.inaf.it
OI Vercellone, Stefano/0000-0003-1163-1396; Perri,
Matteo/0000-0003-3613-4409; Polenta, Gianluca/0000-0003-4067-9196;
Persic, Massimo/0000-0003-1853-4900; Sbarufatti,
Boris/0000-0001-6620-8347; Covino, Stefano/0000-0001-9078-5507;
Gasparrini, Dario/0000-0002-5064-9495; Pian, Elena/0000-0001-8646-4858
FU Smithsonian Institution; Academia Sinica; National Aeronautics and Space
Administration; ESA Member States; NASA; PRIN-INAF
FX The Fermi-LAT Collaboration acknowledges generous ongoing support from a
number of agencies and institutes that have supported both the
development and the operation of the LAT as well as scientific data
analysis. These include the National Aeronautics and Space
Administration and the Department of Energy in the United States, the
Commissariat a l'Energie Atomique and the Centre National de la
Recherche Scientifique / Institut National de Physique Nucleaire et de
Physique des Particules in France, the Agenzia Spaziale Italiana and the
Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of
Education, Culture, Sports, Science and Technology (MEXT), High Energy
Accelerator Research Organization (KEK) and Japan Aerospace Exploration
Agency (JAXA) in Japan and the K. A. Wallenberg Foundation, the Swedish
Research Council and the Swedish National Space Board in Sweden.
Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy and the Centre National d'Etudes Spatiales in France. The SMA is a
joint project between the Smithsonian Astrophysical Observatory and the
Academia Sinica Institute of Astronomy and Astrophysics and is funded by
the Smithsonian Institution and the Academia Sinica. We thank the Swift
team for making these observations possible, the duty scientists and
science planners. This publication makes use of data products from the
Wide-field Infrared Survey Explorer, which is a joint project of the
University of California, Los Angeles, and the Jet Propulsion
Laboratory/California Institute of Technology, funded by the National
Aeronautics and Space Administration. This paper is partly based on
observations obtained with Planck (http://www.esa.int/Planck), an ESA
science mission with instruments and contributions directly funded by
ESA Member States, NASA, and Canada. We thank the anonymous referee, Y.
Tanaka, C. Dermer, S. Digel, and E. Charles for useful comments and
suggestions. Some authors acknowledge financial contribution from grant
PRIN-INAF-2011.
NR 93
TC 21
Z9 21
U1 1
U2 5
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0035-8711
J9 MON NOT R ASTRON SOC
JI Mon. Not. Roy. Astron. Soc.
PD MAY
PY 2013
VL 431
IS 3
BP 2481
EP 2492
DI 10.1093/mnras/stt344
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 136FL
UT WOS:000318347500038
ER
PT J
AU Bishop, CH
Satterfield, EA
AF Bishop, Craig H.
Satterfield, Elizabeth A.
TI Hidden Error Variance Theory. Part I: Exposition and Analytic Model
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID TRANSFORM KALMAN FILTER; ATMOSPHERIC DATA ASSIMILATION; ENSEMBLE
PREDICTION; SCHEME; SYSTEM
AB A conundrum of predictability research is that while the prediction of flow-dependent error distributions is one of its main foci, chaos fundamentally hides flow-dependent forecast error distributions from empirical observation. Empirical estimation of such error distributions requires a large sample of error realizations given the same flow-dependent conditions. However, chaotic elements of the flow and the observing network make it impossible to collect a large enough conditioned error sample to empirically define such distributions and their variance. Such conditional variances are "hidden." Here, an exposition of the problem is developed from an ensemble Kalman filter data assimilation system applied to a 10-variable nonlinear chaotic model and 25 000 replicate models. The 25 000 replicates reveal the error variances that would otherwise be hidden. It is found that the inverse-gamma distribution accurately approximates the posterior distribution of conditional error variances given an imperfect ensemble variance and provides a reasonable approximation to the prior climatological distribution of conditional error variances. A new analytical model shows how the properties of a likelihood distribution of ensemble variances given a true conditional error variance determine the posterior distribution of error variances given an ensemble variance. The analytically generated distributions are shown to satisfactorily fit empirically determined distributions. The theoretical analysis yields a rigorous interpretation and justification of hybrid error variance models that linearly combine static and flow-dependent estimates of forecast error variance; in doing so, it also helps justify and inform hybrid error covariance models.
C1 [Bishop, Craig H.] USN, Res Lab, Monterey, CA 93943 USA.
[Satterfield, Elizabeth A.] CNR, Monterey, CA USA.
RP Bishop, CH (reprint author), USN, Res Lab, Marine Meteorol Div, 7 Grace Hopper Ave,Stop 2,Bldg 702,Room 212, Monterey, CA 93943 USA.
EM bishop@nrlmry.navy.mil
FU U.S. Office of Naval Research [4304-D-0-5]; National Research Council
FX CHB gratefully acknowledges support from the U.S. Office of Naval
Research Grant 4304-D-0-5. This research was performed while ES held a
National Research Council Research Associateship Award.
NR 26
TC 14
Z9 14
U1 0
U2 7
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0027-0644
J9 MON WEATHER REV
JI Mon. Weather Rev.
PD MAY
PY 2013
VL 141
IS 5
BP 1454
EP 1468
DI 10.1175/MWR-D-12-00118.1
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 137SW
UT WOS:000318458700004
ER
PT J
AU Bishop, CH
Satterfield, EA
Shanley, KT
AF Bishop, Craig H.
Satterfield, Elizabeth A.
Shanley, Kevin T.
TI Hidden Error Variance Theory. Part II: An Instrument That Reveals Hidden
Error Variance Distributions from Ensemble Forecasts and Observations
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID PREDICTION SYSTEMS; PROBABILISTIC FORECASTS; INFORMATION-THEORY;
DRESSING KERNEL; SKILL; SCORE
AB In Part I of this study, a model of the distribution of true error variances given an ensemble variance is shown to be defined by six parameters that also determine the optimal weights for the static and flow-dependent parts of hybrid error variance models. Two of the six parameters (the climatological mean of forecast error variance and the climatological minimum of ensemble variance) are straightforward to estimate. The other four parameters are (i) the variance of the climatological distribution of the true conditional error variances, (ii) the climatological minimum of the true conditional error variance, (iii) the relative variance of the distribution of ensemble variances given a true conditional error variance, and (iv) the parameter that defines the mean response of the ensemble variances to changes in the true error variance. These parameters are hidden because they are defined in terms of condition-dependent forecast error variance, which is unobservable if the condition is not sufficiently repeatable. Here, a set of equations that enable these hidden parameters to be accurately estimated from a long time series of (observation minus forecast, ensemble variance) data pairs is presented. The accuracy of the equations is demonstrated in tests using data from long data assimilation cycles with differing model error variance parameters as well as synthetically generated data. This newfound ability to estimate these hidden parameters provides new tools for assessing the quality of ensemble forecasts, tuning hybrid error variance models, and postprocessing ensemble forecasts.
C1 [Bishop, Craig H.] USN, Res Lab, Monterey, CA 93943 USA.
[Satterfield, Elizabeth A.] CNR, Monterey, CA USA.
[Shanley, Kevin T.] Clarkson Univ, Dept Mech Engn, Potsdam, NY USA.
RP Bishop, CH (reprint author), USN, Res Lab, Marine Meteorol Div, 7 Grace Hopper Ave,Stop 2,Bldg 702,Room 212, Monterey, CA 93943 USA.
EM bishop@nrlmry.navy.mil
FU U.S. Office of Naval Research [4304-D-0-5]; National Research Council;
NOAA THORPEX [NA04AANRG0233]
FX CHB gratefully acknowledges support from the U.S. Office of Naval
Research Grant 4304-D-0-5. This research was performed while ES held a
National Research Council Research Associateship Award. KTS acknowledges
support from NOAA THORPEX Grant NA04AANRG0233.
NR 26
TC 4
Z9 4
U1 0
U2 7
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0027-0644
J9 MON WEATHER REV
JI Mon. Weather Rev.
PD MAY
PY 2013
VL 141
IS 5
BP 1469
EP 1483
DI 10.1175/MWR-D-12-00119.1
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 137SW
UT WOS:000318458700005
ER
PT J
AU Kamerath, JH
Epstein, DK
Fitzpatrick, KF
AF Kamerath, Joseph H.
Epstein, David K.
Fitzpatrick, Kevin F.
TI The FromentRauber nerve: A case report and review
SO MUSCLE & NERVE
LA English
DT Article
DE anomalous innervation; first dorsal interosseous; FromentRauber nerve;
posterior interosseous neurectomy; superficial radial nerve
ID POSTERIOR INTEROSSEOUS NERVE; WRIST DENERVATION; RADIAL NERVE; JOINT;
NEURECTOMY; PAIN
AB Introduction The FromentRauber nerve is a rarely described anomalous nerve arising from 1 of the terminal branches of the radial nerve that provides innervation to intrinsic hand muscles. We describe a 26-year-old man who had a traumatic radial nerve injury that resulted in first dorsal interosseous muscle wasting. He presented to our clinic 2.5 years post-injury, after having had unnecessarily undergone surgical exploration of the ulnar nerve. Methods The patient's history, clinical examination, and multiple electrodiagnostic tests were reviewed. Results All findings were consistent with a diagnosis of anomalous innervation via a FromentRauber nerve. Conclusions Understanding this rare phenomenon may aid in diagnosing confusing clinical cases and prevent unnecessary procedures. Muscle Nerve 47: 768771, 2013
C1 [Kamerath, Joseph H.] Walter Reed Natl Mil Med Ctr, Dept Phys Med & Rehabil, Bethesda, MD USA.
[Epstein, David K.] Naval Med Ctr Portsmouth, Dept Neurol, Portsmouth, VA USA.
[Fitzpatrick, Kevin F.] Mt Vernon Rehabil Med Associates, Alexandria, VA USA.
RP Kamerath, JH (reprint author), 3615 Holiday Dr SE, Olympia, WA 98501 USA.
EM jkamerath@gmail.com
NR 35
TC 1
Z9 1
U1 0
U2 2
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0148-639X
J9 MUSCLE NERVE
JI Muscle Nerve
PD MAY
PY 2013
VL 47
IS 5
BP 768
EP 771
DI 10.1002/mus.23741
PG 4
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA 134SH
UT WOS:000318234200020
PM 23553702
ER
PT J
AU Nevin, J
Washko, JK
Arnold, J
AF Nevin, John
Washko, Julie Kanter
Arnold, John
TI Haemophilus influenzae Type b in an Immunocompetent, Fully Vaccinated
ALL Survivor
SO PEDIATRICS
LA English
DT Article
DE leukemia; cancer; chemotherapy; Haemophilus influenzae type b; vaccine;
infectious disease
ID ACUTE LYMPHOBLASTIC-LEUKEMIA; HUMORAL IMMUNITY; UNITED-STATES;
HEPATITIS-B; CHILDREN; CHEMOTHERAPY; TETANUS; DISEASE; POLIOMYELITIS;
IMMUNIZATION
AB A 7-year-old boy with a history of recurrent acute lymphoblastic leukemia (ALL), in remission, presented to primary care clinic after 2 days of progressive right hip pain with weight-bearing activities. He was otherwise asymptomatic at the time of presentation. Blood cultures revealed Gram-negative diplococci, which prompted an MRI that was significant for a hip joint effusion and femoral head bone marrow edema. The patient had no sick contacts and no significant past medical history other than ALL. The patient had been given all recommended childhood vaccinations. Arthrocentesis and needle biopsy of the femoral neck were not diagnostic for malignancy and revealed only mild hip joint inflammation, leading to a diagnosis of osteomyelitis. The organism in the original blood culture was identified as Haemophilus influenzae type b, beta-lactamase negative. Review of the patient's medical records showed a history of complete immunization to Haemophilus influenzae type b. An immunologic evaluation was made to determine if the patient retained immunity from his other vaccinations. Pathogen-specific antibody testing revealed detectable antibodies to polio but not measles, mumps, rubella, varicella-zoster virus, tetanus, diphtheria, pertussis, or hepatitis B. This loss of immunologic memory appears to be a rarely described side effect of ALL chemotherapy. There is currently no protocol to evaluate the immunologic memory of patients who underwent chemotherapy for ALL or to revaccinate them after their treatment. It is unclear whether the loss of immunologic memory is genuinely rare or is underdiagnosed because affected patients are protected by herd immunity.
C1 [Nevin, John; Arnold, John] USN, Med Ctr, Dept Pediat, San Diego, CA 92152 USA.
[Arnold, John] USN, Med Ctr, Dept Infect Dis, San Diego, CA 92152 USA.
[Washko, Julie Kanter] Tulane Univ Hosp, Dept Pediat & Hematol Oncol, New Orleans, LA USA.
RP Nevin, J (reprint author), 1440 Hotel Circle N, San Diego, CA 92108 USA.
EM gtg968h@gmail.com
NR 21
TC 1
Z9 1
U1 1
U2 2
PU AMER ACAD PEDIATRICS
PI ELK GROVE VILLAGE
PA 141 NORTH-WEST POINT BLVD,, ELK GROVE VILLAGE, IL 60007-1098 USA
SN 0031-4005
J9 PEDIATRICS
JI Pediatrics
PD MAY
PY 2013
VL 131
IS 5
BP E1639
EP E1642
DI 10.1542/peds.2012-1126
PG 4
WC Pediatrics
SC Pediatrics
GA 135EO
UT WOS:000318270700032
PM 23589809
ER
PT J
AU Rose, PS
Smith, JP
Cochran, JK
Aller, RC
Swanson, RL
AF Rose, Paula S.
Smith, Joseph P.
Cochran, J. Kirk
Aller, Robert C.
Swanson, R. Lawrence
TI Behavior of medically-derived I-131 in the tidal Potomac River
SO SCIENCE OF THE TOTAL ENVIRONMENT
LA English
DT Article
DE Iodine; I-131; Sewage effluent; Waste water; Radiopharmaceuticals;
Radioactivity
ID SEDIMENT-WATER INTERFACE; HUMIC SUBSTANCES; IODINE SPECIATION;
CHESAPEAKE BAY; ATMOSPHERIC DEPOSITION; MUNICIPAL SEWAGE; COASTAL
WATERS; THYROID-GLANDS; ORGANIC IODINE; GEOCHEMISTRY
AB Iodine-131 (t(1/2) = 8.04 d) is administered to patients for treatment of thyroid disorders, excreted by patients and discharged to surface waters via sewage effluent. Radionuclides generally behave like their stable analogs; therefore, medically-derived I-131 is useful as a transport-reaction tracer of anthropogenic inputs and the aquatic biogeochemistry of iodine. Iodine-131 was measured in Potomac River water and sediments in the vicinity of the Blue Plains Water Pollution Control Plant (WPCP), Washington, DC, USA. Concentrations measured in sewage effluent from Blue Plains WPCP and in the Potomac River suggest a relatively continuous source of this radionuclide. The range of I-131 concentrations detected in surface water was 0.076 +/- 0.006 to 6.07 +/- 0.07 Bq L-1. Iodine-131 concentrations in sediments ranged from 1.3 +/- 0.8 to 117 +/- 2 Bq kg(-1) dry weight. Partitioning in the sewage effluent from Blue Plains and in surface waters indicated that I-131 is associated with colloidal and particulate organic material. The behavior of medically-derived I-131 in the Potomac River is consistent with the nutrient-like behavior of natural iodine in aquatic environments. After discharge to the river via sewage effluent, it is incorporated into biogenic particulate material and deposited in sediments. Solid phase sediment profiles of I-131 indicated rapid mixing or sedimentation of particulate debris and diagenetic remineralization and recycling on short time scales. (c) 2013 Published by Elsevier B.V.
C1 [Rose, Paula S.; Cochran, J. Kirk; Aller, Robert C.; Swanson, R. Lawrence] SUNY Stony Brook, Marine Sci Res Ctr, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA.
[Rose, Paula S.] USN, Res Lab, Sci Applicat Int Corp, Washington, DC 20375 USA.
[Rose, Paula S.; Smith, Joseph P.] USN, Res Lab, Washington, DC 20375 USA.
RP Rose, PS (reprint author), USN, Res Lab, Code 6114,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM paula.rose.ctr@nrl.navy.mil
FU DC Water
FX We thank Sudhir Murthy, Elaine Wilson and Rudy Rimando (Blue Plains
WPCP, DC Water); Phil Loar and Larry Slattery (Arlington WPCP); Leulu
Grebremedhin (Alexandria Sanitation Authority) for help with sample
collection and providing information about the plants; Tom Boyd, Rick
Coffin and Rebecca Plummer at the US Naval Research Laboratory for help
with sample collection and analysis. Joseph Daley at Stony Brook
University, Environmental Health and Safety provided us with information
regarding the medical use of 131I. We also thank David
Hirschberg, Christina Heilbrun, Alisha Renfro and Jeronimo Pan for
assistance in the laboratory at Stony Brook University. We recognize the
support of PSR by DC Water through their internship program.
NR 66
TC 5
Z9 5
U1 0
U2 24
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0048-9697
J9 SCI TOTAL ENVIRON
JI Sci. Total Environ.
PD MAY 1
PY 2013
VL 452
BP 87
EP 97
DI 10.1016/j.scitotenv.2013.01.055
PG 11
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 138SP
UT WOS:000318530600010
PM 23500402
ER
PT J
AU Farren, JD
Hunter, AH
DuPont, JN
Robino, CV
Kozeschnik, E
Seidman, DN
AF Farren, J. D.
Hunter, A. H.
DuPont, J. N.
Robino, C. V.
Kozeschnik, E.
Seidman, D. N.
TI Microstructural Evolution and Mechanical Properties of Simulated
Heat-Affected Zones in an Iron-Copper Based Multicomponent Steel
SO WELDING JOURNAL
LA English
DT Article
DE High-Strength Steels; Fracture; Weld Process Simulation
ID CU-BASED STEEL; LOW-CARBON STEELS; ACICULAR FERRITE; COARSENING
KINETICS; TEMPORAL EVOLUTION; MULTIPHASE SYSTEMS; WELD DEPOSITS;
ALPHA-FE; PRECIPITATION; SEGREGATION
AB NUCu-140 is a recently developed steel that relies on nano-scale Cu-rich precipitates to achieve yield strength levels in excess of 825 MPa (120 ksi). In order for NUCu-140 to be utilized as a structural material, a comprehensive welding strategy must be developed. Since NUCu-140 is a precipitation-strengthened material, this strategy must include a detailed understanding of the precipitate evolution that occurs in the heat-affected zone (HAZ) as a result of welding thermal cycles. A combination of dilatometry, HAZ simulations, and mechanical testing are presented to determine the mechanical properties that develop in the HAZ of NUCu-140. MatCalc kinetic simulations and Russell-Brown strengthening calculations were conducted to model the observed precipitate and mechanical property trends. The microhardness and tensile testing results reveal that local softening is expected in the HAZ of NUCu-140 welds. MatCalc simulations show that a combination of partial dissolution, full dissolution, and re-precipitation of the Cu-rich precipitates is expected to occur in the various HAZ regions. The predicted precipitate parameters are used as input to the Russell-Brown strengthening model to estimate the changes in strength expected due to changes in precipitate features. The measured and predicted strength levels exhibit very good quantitative agreement for the low-heat-input simulations and reasonable qualitative agreement for the high-heat-input weld simulations.
C1 [Farren, J. D.] USN, Ctr Surface Warfare, Carderock Div, West Bethesda, MD USA.
[Hunter, A. H.; Seidman, D. N.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
[DuPont, J. N.] Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA.
[Robino, C. V.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Kozeschnik, E.] Vienna Univ Technol, Dept Mat Sci & Technol, A-1040 Vienna, Austria.
RP Farren, JD (reprint author), USN, Ctr Surface Warfare, Carderock Div, West Bethesda, MD USA.
EM jnd1@lehigh.edu
RI Seidman, David/B-6697-2009
FU Office of Naval Research [N00014-07-1-0331]
FX The authors gratefully acknowledge financial support of this research by
the Office of Naval Research through Grant Number N00014-07-1-0331 and
useful discussions with the program manager, Dr. William Mullins, of the
Office of Naval Research.
NR 26
TC 1
Z9 1
U1 0
U2 22
PU AMER WELDING SOC
PI MIAMI
PA 550 N W LEJEUNE RD, MIAMI, FL 33126 USA
SN 0043-2296
J9 WELD J
JI Weld. J.
PD MAY
PY 2013
VL 92
IS 5
BP 140S
EP 147S
PG 8
WC Metallurgy & Metallurgical Engineering
SC Metallurgy & Metallurgical Engineering
GA 137WP
UT WOS:000318469200015
ER
PT J
AU Clark, J
Salvatierra, J
Segura, E
Salazar, X
Konda, K
Perez-Brumer, A
Hall, E
Klausner, J
Caceres, C
Coates, T
AF Clark, Jesse
Salvatierra, Javier
Segura, Eddy
Salazar, Ximena
Konda, Kelika
Perez-Brumer, Amaya
Hall, Eric
Klausner, Jeffrey
Caceres, Carlos
Coates, Thomas
TI Moderno Love: Sexual Role-Based Identities and HIV/STI Prevention Among
Men Who Have Sex with Men in Lima, Peru
SO AIDS AND BEHAVIOR
LA English
DT Article
DE HIV; STI; MSM; Sexual role; Peru
ID HETEROSEXUALLY-IDENTIFIED MEN; BISEXUAL LATINO MEN; LOW-INCOME;
TRANSMITTED INFECTIONS; RISK BEHAVIORS; HIV PREVENTION; GAY; HIV/AIDS;
TRANSMISSION; EPIDEMIC
AB Role-based sexual identities structure male same-sex partnerships and influence HIV/STI epidemiology among MSM in Latin America. We explored shifting relationships between sexual roles, identities and practices among MSM in Lima, Peru, and implications for HIV/STI prevention. Patterns of HIV/STI epidemiology reflected differential risks for transmission within role-based partnerships with relatively low prevalences of HIV, syphilis, and HSV-2 but higher prevalences of urethral gonorrhea/chlamydia among activo MSM compared with moderno and pasivo participants. Qualitative analysis of how MSM in Peru integrate sexual identities, roles, and practices identified four key themes: pasivo role as a gay approximation of cultural femininity; activo role as a heterosexual consolidation of masculinity; moderno role as a masculine reconceptualization of gay identity; and role-based identities as social determinants of partnership, network, and community formation. The concept of role-based sexual identities provides a framework for HIV prevention for Latin American MSM that integrates sexual identities, practices, partnerships, and networks.
C1 [Clark, Jesse; Segura, Eddy; Konda, Kelika; Perez-Brumer, Amaya; Klausner, Jeffrey; Coates, Thomas] Univ Calif Los Angeles, David Geffen Sch Med, Dept Med, Program Global Hlth,Div Infect Dis, Los Angeles, CA 90095 USA.
[Salvatierra, Javier; Salazar, Ximena; Caceres, Carlos] Univ Peruana Cayetano Heredia, Inst Estudios Salud Sexualidad & Desarollo Humano, Lima, Peru.
[Hall, Eric] USN, Med Res Ctr, Bethesda, MD 20084 USA.
RP Clark, J (reprint author), Univ Calif Los Angeles, David Geffen Sch Med, Dept Med, Program Global Hlth,Div Infect Dis, 10833 Leconte Ave,CHS 37-121, Los Angeles, CA 90095 USA.
EM jlclark@mednet.ucla.edu
OI Perez-Brumer, Amaya/0000-0003-2441-4358; Caceres,
Carlos/0000-0002-8101-0790; Segura, Eddy R/0000-0003-3580-7712
FU NIMH NIH HHS [T32 MH080634, K23 MH084611, K23 MH 084611, T32 MH 080634]
NR 52
TC 19
Z9 19
U1 3
U2 7
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1090-7165
J9 AIDS BEHAV
JI AIDS Behav.
PD MAY
PY 2013
VL 17
IS 4
BP 1313
EP 1328
DI 10.1007/s10461-012-0210-5
PG 16
WC Public, Environmental & Occupational Health; Social Sciences, Biomedical
SC Public, Environmental & Occupational Health; Biomedical Social Sciences
GA 133WO
UT WOS:000318171800011
PM 22614747
ER
PT J
AU Massie, AB
Gentry, SE
Montgomery, RA
Bingaman, AA
Segev, DL
AF Massie, A. B.
Gentry, S. E.
Montgomery, R. A.
Bingaman, A. A.
Segev, D. L.
TI Center-Level Utilization of Kidney Paired Donation
SO AMERICAN JOURNAL OF TRANSPLANTATION
LA English
DT Article
DE Kidney exchanges
ID TRANSPLANTATION; CHAIN; DESENSITIZATION; EXPERIENCE; SIMULATION; PROGRAM
AB With many multicenter consortia and a United Network for Organ Sharing program, participation in kidney paired donation (KPD) has become mainstream in the United States and should be feasible for any center that performs live donor kidney transplantation (LDKT). Lack of participation in KPD may significantly disadvantage patients with incompatible donors. To explore utilization of this modality, we analyzed adjusted center-specific KPD rates based on casemix of adult LDKT-eligible patients at 207 centers between 2006 and 2011 using SRTR data. From 2006 to 2008, KPD transplants became more evenly distributed across centers, but from 2008 to 2011 the distribution remained unchanged (Gini coefficient = 0.91 for 2006, 0.76 for 2008 and 0.77 for 2011), showing an unfortunate stall in dissemination. At the 10% of centers with the highest KPD rates, 9.938.5% of LDKTs occurred through KPD during 20092011; if all centers adopted KPD at rates observed in the very high-KPD centers, the number of KPD transplants per year would increase by a factor of 3.2 (from 494 to 1593). Broader implementation of KPD across a wide number of centers is crucial to properly serve transplant candidates with healthy but incompatible live donors.
C1 [Massie, A. B.; Gentry, S. E.; Montgomery, R. A.; Segev, D. L.] Johns Hopkins Sch Publ Hlth, Dept Surg, Baltimore, MD USA.
[Massie, A. B.; Segev, D. L.] Johns Hopkins Sch Publ Hlth, Dept Epidemiol, Baltimore, MD USA.
[Gentry, S. E.] USN Acad, Dept Math, Annapolis, MD USA.
[Bingaman, A. A.] Methodist Specialty & Transplant Hosp, Texas Transplant Inst, San Antonio, TX USA.
RP Segev, DL (reprint author), Johns Hopkins Sch Publ Hlth, Dept Surg, Baltimore, MD USA.
EM dorry@jhmi.edu
FU National Institute of Diabetes and Digestive and Kidney Diseases [RC1
DK086731]; Charles T. Bauer Foundation
FX This work was supported by a grant (RC1 DK086731) from the National
Institute of Diabetes and Digestive and Kidney Diseases and from the
Charles T. Bauer Foundation (to Drs. Montgomery and Segev).
NR 26
TC 23
Z9 23
U1 0
U2 2
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1600-6135
J9 AM J TRANSPLANT
JI Am. J. Transplant.
PD MAY
PY 2013
VL 13
IS 5
BP 1317
EP 1322
DI 10.1111/ajt.12189
PG 6
WC Surgery; Transplantation
SC Surgery; Transplantation
GA 135GR
UT WOS:000318277100023
PM 23463990
ER
PT J
AU Bein, BM
Temmer, M
Vourlidas, A
Veronig, AM
Utz, D
AF Bein, B. M.
Temmer, M.
Vourlidas, A.
Veronig, A. M.
Utz, D.
TI THE HEIGHT EVOLUTION OF THE "TRUE" CORONAL MASS EJECTION MASS DERIVED
FROM STEREO COR1 AND COR2 OBSERVATIONS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE Sun: activity; Sun: coronal mass ejections (CMEs)
ID ENERGY; DIMMINGS; ACCELERATION; SPACECRAFT; MISSION; PHASE
AB Using combined STEREO-A and STEREO-B EUVI, COR1, and COR2 data, we derive deprojected coronal mass ejection (CME) kinematics and CME "true" mass evolutions for a sample of 25 events that occurred during 2007 December to 2011 April. We develop a fitting function to describe the CME mass evolution with height. The function considers both the effect of the coronagraph occulter, at the beginning of the CME evolution, and an actual mass increase. The latter becomes important at about 10-15 R-circle dot and is assumed to mostly contribute up to 20 R-circle dot. The mass increase ranges from 2% to 6% per R-circle dot and is positively correlated to the total CME mass. Due to the combination of COR1 and COR2 mass measurements, we are able to estimate the "true" mass value for very low coronal heights (<3 R-circle dot). Based on the deprojected CME kinematics and initial ejected masses, we derive the kinetic energies and propelling forces acting on the CME in the low corona (<3 R-circle dot). The derived CME kinetic energies range between 1.0-66 x 10(23) J, and the forces range between 2.2-510 x 10(14) N.
C1 [Bein, B. M.; Temmer, M.; Veronig, A. M.; Utz, D.] Graz Univ, Inst Phys, Kanzelhohe Observ, IGAM, A-8010 Graz, Austria.
[Vourlidas, A.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Utz, D.] CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain.
RP Bein, BM (reprint author), Graz Univ, Inst Phys, Kanzelhohe Observ, IGAM, Univ Pl 5, A-8010 Graz, Austria.
RI Veronig, Astrid/B-8422-2009; Vourlidas, Angelos/C-8231-2009;
OI Vourlidas, Angelos/0000-0002-8164-5948; Temmer,
Manuela/0000-0003-4867-7558
FU Osterreichische Forderungsgesellschaft (FFG) of the Austrian Space
Applications Programme (ASAP) [828271]; Fonds zur Forderung
wissenschaftlicher Forschung (FWF) [V195-N16, J3176]; NASA [S-136361-Y]
FX This work is supported by the Osterreichische Forderungsgesellschaft
(FFG) of the Austrian Space Applications Programme (ASAP) under grant
No. 828271 and by the Fonds zur Forderung wissenschaftlicher Forschung
(FWF): V195-N16 and J3176. The work of Angelos Vourlidas is supported by
NASA contract S-136361-Y to the Naval Research Laboratory. We want to
thank Robin Colaninno for providing the mass calculation programs. The
STEREO/SECCHI data are produced by an international consortium of the
Naval Research Laboratory (USA), Lockheed Martin Solar and Astrophysics
Lab (USA), NASA Goddard Space Flight Center (USA), Rutherford Appleton
Laboratory (UK), University of Birmingham (UK), Max-Planck-Institut fur
Sonnensystemforschung (Germany), Centre Spatiale de Liege (Belgium),
Institut d'Optique Theorique et Appliquee (France), and Institut
d'Astrophysique Spatiale (France).
NR 31
TC 12
Z9 12
U1 1
U2 6
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 MAY 1
PY 2013
VL 768
IS 1
AR 31
DI 10.1088/0004-637X/768/1/31
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 130ZT
UT WOS:000317960500031
ER
PT J
AU Kozdon, JE
Dunham, EM
AF Kozdon, Jeremy E.
Dunham, Eric M.
TI Rupture to the Trench: Dynamic Rupture Simulations of the 11 March 2011
Tohoku Earthquake
SO BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
LA English
DT Article
ID STATE-DEPENDENT FRICTION; OKI EARTHQUAKE; SEISMOGENIC ZONE; DISSIMILAR
MATERIALS; SUBDUCTION ZONES; FAULT RUPTURE; PORE PRESSURE; UPDIP LIMIT;
HALF-SPACE; SLIP
AB There is strong evidence that the 11 March 2011 Tohoku earthquake rupture reached the seafloor. This is surprising because the shallow portion of the plate interface in subduction zones is thought to be frictionally stable, leading to the widely held view that coseismic rupture would stop several tens of kilometers downdip of the seafloor. Various explanations have been proposed to reconcile this seeming inconsistency, including dynamic weakening (e. g., thermal pressurization) and extreme stress release around shallow subducted seamounts. We offer a simpler explanation supported by 2D dynamic rupture simulations of the Tohoku earthquake. Our models account for depth-dependent material properties and the complex geometry of the fault, seafloor, and material interfaces, based on seismic surveys of the Japan Trench. The fault obeys rate-and-state friction with standard logarithmic dependence of shear strength on slip velocity in steady state. In our preferred model, the uppermost section of the fault is velocity strengthening. Rupture nucleates on a deeper, velocity-weakening section. Waves released by deep slip reflect off the seafloor, transmitting large stress changes to the upper section of the fault driving the rupture through the velocity-strengthening region to the trench. We validate the model against seafloor deformation and 1-Hz Global Positioning System (GPS) data. The seafloor displacements constrain the seismogenic depth and overall amount of slip, particularly near the trench. Our simulations reproduce many features in the GPS data, thereby providing insight into the rupture process and seismic wave field. Sensitivity to parameters is explored through an extensive suite of simulations. Neither static seafloor deformation nor onshore 1-Hz GPS data can uniquely determine near-trench frictional properties due to trade-offs with average stress drop. While conducted specifically for the Japan Trench region, our simulations suggest that rupture to the trench in megathrust events is quite possible, even if velocity-strengthening properties extend tens of kilometers landward from the trench.
C1 [Kozdon, Jeremy E.; Dunham, Eric M.] Stanford Univ, Dept Geophys, Stanford, CA 94305 USA.
[Dunham, Eric M.] Stanford Univ, Inst Computat & Math Engn, Stanford, CA 94305 USA.
RP Kozdon, JE (reprint author), USN, Postgrad Sch, Dept Appl Math, 833 Dyer Rd, Monterey, CA 93943 USA.
EM jekozdon@nps.edu; edunham@stanford.edu
FU NSF [OCI-1122734]
FX JEK was supported by the NSF Fellowship for Transformative Computational
Science using CyberInfrastructure OCI-1122734. We thank Emily Brodsky
for inspiring this work by her request for Tohoku simulations in support
of the JFAST proposal. Discussions with Paul Segall, Greg Beroza,
Shinichi Miyazaki, and Satoshi Ide were invaluable.
NR 61
TC 29
Z9 30
U1 1
U2 24
PU SEISMOLOGICAL SOC AMER
PI ALBANY
PA 400 EVELYN AVE, SUITE 201, ALBANY, CA 94706-1375 USA
SN 0037-1106
EI 1943-3573
J9 B SEISMOL SOC AM
JI Bull. Seismol. Soc. Amer.
PD MAY
PY 2013
VL 103
IS 2B
BP 1275
EP 1289
DI 10.1785/0120120136
PG 15
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 135GS
UT WOS:000318277200008
ER
PT J
AU Gangopadhyay, S
Pasalic, E
Stanica, P
AF Gangopadhyay, Sugata
Pasalic, Enes
Stanica, Pantelimon
TI A Note on Generalized Bent Criteria for Boolean Functions
SO IEEE TRANSACTIONS ON INFORMATION THEORY
LA English
DT Article
DE Algebraic degree; bent function; bent(4) function; nega-Hadamard
transform; Walsh-Hadamard transform
ID NEGABENT
AB In this paper, we consider the spectra of Boolean functions with respect to the action of unitary transforms obtained by taking tensor products of the Hadamard kernel, denoted by, and the nega-Hadamard kernel, denoted by. The set of all such transforms is denoted by {H, N}(n). A Boolean function is said to be bent(4) if its spectrum with respect to at least one unitary transform in {H, N}(n) is flat. We obtain a relationship between bent, semibent, and bent(4) functions, which is a generalization of the relationship between bent and negabent Boolean functions proved by Parker and Pott [cf., LNCS 4893 (2007), 9-23]. As a corollary to this result, we prove that the maximum possible algebraic degree of a bent(4) function on n variables is [n/2] and, hence, solve an open problem posed by Riera and Parker [cf., IEEE-TIT 52: 9 (2006), 4142-4159].
C1 [Gangopadhyay, Sugata] Indian Inst Technol, Dept Math, Roorkee 247667, Uttar Pradesh, India.
[Pasalic, Enes] Univ Primorska, Fac Math Nat Sci & Informat Technol, SI-6104 Koper, Slovenia.
[Stanica, Pantelimon] USN, Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
RP Gangopadhyay, S (reprint author), Indian Inst Technol, Dept Math, Roorkee 247667, Uttar Pradesh, India.
EM gsugata@gmail.com; enes.pasalic6@gmail.com; pstanica@nps.edu
RI Pasalic, Enes/M-8923-2016
NR 9
TC 2
Z9 2
U1 1
U2 9
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9448
EI 1557-9654
J9 IEEE T INFORM THEORY
JI IEEE Trans. Inf. Theory
PD MAY
PY 2013
VL 59
IS 5
BP 3233
EP 3236
DI 10.1109/TIT.2012.2235908
PG 4
WC Computer Science, Information Systems; Engineering, Electrical &
Electronic
SC Computer Science; Engineering
GA 133TM
UT WOS:000318163500042
ER
PT J
AU Kosasih, H
Roselinda
Nurhayati
Klimov, A
Xu, XY
Lindstrom, S
Mahoney, F
Beckett, C
Burgess, TH
Blair, PJ
Uyeki, TM
Sedyaningsih, ER
AF Kosasih, Herman
Roselinda
Nurhayati
Klimov, Alexander
Xu Xiyan
Lindstrom, Stephen
Mahoney, Frank
Beckett, Charmagne
Burgess, Timothy H.
Blair, Patrick J.
Uyeki, Timothy M.
Sedyaningsih, Endang R.
TI Surveillance of Influenza in Indonesia, 20032007
SO INFLUENZA AND OTHER RESPIRATORY VIRUSES
LA English
DT Article
DE Indonesia; influenza; surveillance
ID VIRUS; EPIDEMIOLOGY; H5N1; INFECTION; THAILAND
AB Background Longitudinal data are limited about the circulating strains of influenza viruses and their public health impact in Indonesia. We conducted influenza surveillance among outpatients and hospitalized patients with influenza-like illness (ILI) across the Indonesian archipelago from 2003 through 2007. Methodology Demographic, clinical data, and respiratory specimens were collected for 4236 ILI patients tested for influenza virus infection by RT-PCR and viral culture. Principal Findings Influenza A and B viruses co-circulated year-round with seasonal peaks in influenza A virus activity during the rainy season (DecemberJanuary). During 20032007, influenza viruses were identified in 20 center dot 1% (4236/21030) of ILI patients, including 20 center dot 1% (4015/20012) of outpatients, and 21 center dot 7% (221/1018) of inpatients. One H5N1 case was identified retrospectively in an outpatient with ILI. Antigenic drift in circulating influenza A and B virus strains was detected during the surveillance period in Indonesia. In a few instances, antigenically drifted viruses similar to the World Health Organization (WHO) vaccine strains were detected earlier than the date of their designation by WHO. Conclusions Influenza A and B virus infections are an important cause of influenza-like illness among outpatients and hospitalized patients in Indonesia. While year-round circulation of influenza viruses occurs, prevention and control strategies should be focused upon the seasonal peak during rainy season months. Ongoing virologic surveillance and influenza disease burden studies in Indonesia are important priorities to better understand the public health impact of influenza in South-East Asia and the implications of influenza viral evolution and global spread.
C1 [Kosasih, Herman; Roselinda; Sedyaningsih, Endang R.] Minist Hlth, Jakarta, Indonesia.
[Kosasih, Herman; Nurhayati; Blair, Patrick J.] US Naval Med Res Unit NAMRU, Jakarta, Indonesia.
[Klimov, Alexander; Xu Xiyan; Lindstrom, Stephen; Uyeki, Timothy M.] US Ctr Dis Control & Prevent, Influenza Div, Atlanta, GA USA.
[Mahoney, Frank] US Ctr Dis Control & Prevent, Jakarta, Indonesia.
[Beckett, Charmagne] USN, Med Res Ctr, Silver Spring, MD USA.
[Burgess, Timothy H.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
RP Uyeki, TM (reprint author), Ctr Dis Control & Prevent, Influenza Div, Natl Ctr Immunizat & Resp Dis, Mailstop A-20,1600 Clifton Rd NE, Atlanta, GA 30333 USA.
EM tuyeki@cdc.gov
FU U.S. Department of Defense Armed Forces Health Surveillance Center,
Division of Global Emerging Infections Surveillance (AFHSC/GEIS); U.S.
Centers for Disease Control and Prevention (CDC)
FX The author(s) declare that they have no conflict of interest. This work
was funded in part by grants from the U.S. Department of Defense Armed
Forces Health Surveillance Center, Division of Global Emerging
Infections Surveillance (AFHSC/GEIS) and the U.S. Centers for Disease
Control and Prevention (CDC). The views expressed are those of the
authors and do not necessarily represent the official policies of the
CDC, the U.S. Department of Defense or the Department of the Navy.
NR 29
TC 10
Z9 10
U1 0
U2 6
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1750-2640
J9 INFLUENZA OTHER RESP
JI Influenza Other Respir. Viruses
PD MAY
PY 2013
VL 7
IS 3
BP 312
EP 320
DI 10.1111/j.1750-2659.2012.00403.x
PG 9
WC Infectious Diseases; Virology
SC Infectious Diseases; Virology
GA 131XX
UT WOS:000318033100015
PM 22804910
ER
PT J
AU Voccola, K
Cheney, M
Yazici, B
AF Voccola, Kaitlyn
Cheney, Margaret
Yazici, Birsen
TI Polarimetric synthetic-aperture inversion for extended targets in
clutter
SO INVERSE PROBLEMS
LA English
DT Article
ID SCATTERING CENTERS; IMAGE-FORMATION; SAR DATA; ANGLE
AB This paper presents an analytic inversion method for a polarimetric synthetic-aperture radar (SAR) in the case of an extended target embedded in clutter. The measurements are also contaminated by thermal noise. We use microlocal analysis in a statistical setting to develop a filtered-backprojection-type reconstruction method. The inversion method accommodates arbitrary waveforms and arbitrary flight paths. We model the antennas and scatterers as dipoles; scatterers are thus characterized by a spatially varying scattering matrix. We include directional scattering assumptions to distinguish a curve-like extended target from clutter, which is assumed to scatter isotropically. For the inversion we choose the backprojection filter which minimizes the mean-square error between the reconstructed image and the actual target scattering matrix. Our work differs from standard polarimetric SAR imaging in that we do not perform channel-by-channel image reconstruction. We find that it is preferable to use a coupled reconstruction scheme in which we use all sets of collected data to form each element of the scattering matrix. We show in our numerical experiments that the coupled reconstruction not only minimizes the mean-square error but also improves the image target-to-clutter ratio in certain scenarios.
C1 [Voccola, Kaitlyn] USAF, Sensors Directorate, Res Lab, Dayton, OH 45433 USA.
[Voccola, Kaitlyn] Rensselaer Polytech Inst, Dept Math Sci, Troy, NY 12180 USA.
[Voccola, Kaitlyn; Cheney, Margaret] Colorado State Univ, Dept Math, Ft Collins, CO 80523 USA.
[Voccola, Kaitlyn; Cheney, Margaret] Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA.
[Cheney, Margaret] USN, Dept Appl Math, Postgrad Sch, Monterey, CA 93943 USA.
[Yazici, Birsen] Rensselaer Polytech Inst, Dept Elect Comp & Syst Engn, Troy, NY 12180 USA.
RP Voccola, K (reprint author), USAF, Sensors Directorate, Res Lab, Dayton, OH 45433 USA.
EM kvoccola@gmail.com
FU ATR Center at AFRL [FA8650-08-C-1322]; GAANN fellowship; National
Research Council Postdoctoral Research Associateship program; Air Force
Office of Scientific Research [FA9550-09-1-0013]; National Science
Foundation [CCF-08030672]
FX The authors would like to thank Dr Matthew Ferrara and Dr Richard
Albanese for their assistance in formulating this forward problem and
inversion scheme. Also we would like to thank Dr Gerald Benitz from MIT
Lincoln Laboratory for his suggestion on regularizing the matrix
inversion in the numerical simulations. This work was supported by the
ATR Center at AFRL6 under contract FA8650-08-C-1322, the
GAANN fellowship, the National Research Council Postdoctoral Research
Associateship program, the Air Force Office of Scientific
Research6 under contract FA9550-09-1-0013 and the National
Science Foundation under grant CCF-08030672.
NR 40
TC 5
Z9 5
U1 0
U2 9
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0266-5611
J9 INVERSE PROBL
JI Inverse Probl.
PD MAY
PY 2013
VL 29
IS 5
AR 054003
DI 10.1088/0266-5611/29/5/054003
PG 25
WC Mathematics, Applied; Physics, Mathematical
SC Mathematics; Physics
GA 131UR
UT WOS:000318022700004
ER
PT J
AU Bond, JW
Brady, TF
AF Bond, John W.
Brady, Thomas F.
TI Physical Characterization and Recovery of Corroded Fingerprint
Impressions from Postblast Copper Pipe Bomb Fragments
SO JOURNAL OF FORENSIC SCIENCES
LA English
DT Article
DE corrosion; forensic science; improvised explosive device;
microfractures; pipe bomb; print visualization; work hardening
ID MITOCHONDRIAL-DNA; CORROSION; BRASS; VISUALIZATION; DEVICES
AB Pipe bombs made from 1mm thick copper pipe were detonated with a low explosive power powder. Analysis of the physical characteristics of fragments revealed that the copper had undergone work hardening with an increased Vickers Hardness of 107HV1 compared with 80HV1 for unexploded copper pipe. Mean plastic strain prior to fracture was calculated at 0.28 showing evidence of both plastic deformation and wall thinning. An examination of the external surface showed microfractures running parallel with the length of the pipe at approximately 100m intervals and 12m in width. Many larger fragments had folded inside out making the original outside surface inaccessible and difficult to fold back through work hardening. A visual examination for fingerprint corrosion revealed ridge details on several fragments that were enhanced by selective digital mapping of colors reflected from the surface of the copper. One of these fingerprints was identified partially to the original donor.
C1 [Bond, John W.] Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England.
[Brady, Thomas F.] USN, Criminal Invest Serv, Jacksonville, FL 32212 USA.
RP Bond, JW (reprint author), Univ Leicester, Dept Chem, George Porter Bldg,Univ Rd, Leicester LE1 7RH, Leics, England.
EM jwb13@le.ac.uk
NR 27
TC 1
Z9 1
U1 4
U2 23
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0022-1198
J9 J FORENSIC SCI
JI J. Forensic Sci.
PD MAY
PY 2013
VL 58
IS 3
BP 776
EP 781
DI 10.1111/1556-4029.12136
PG 6
WC Medicine, Legal
SC Legal Medicine
GA 132DT
UT WOS:000318048800032
PM 23550979
ER
PT J
AU Belmont, PJ
McCriskin, BJ
Hsiao, MS
Burks, R
Nelson, KJ
Schoenfeld, AJ
AF Belmont, Philip J., Jr.
McCriskin, Brendan J.
Hsiao, Mark S.
Burks, Robert
Nelson, Kenneth J.
Schoenfeld, Andrew J.
TI The Nature and Incidence of Musculoskeletal Combat Wounds in Iraq and
Afghanistan (2005-2009)
SO JOURNAL OF ORTHOPAEDIC TRAUMA
LA English
DT Article
DE musculoskeletal trauma; combat; epidemiology
ID OPERATION ENDURING FREEDOM; ORTHOPEDIC INJURIES; RISK-FACTORS;
AMPUTATIONS; WAR
AB Objectives: This investigation sought to describe orthopaedic wounds sustained by service members deployed to Iraq or Afghanistan from 2005 to 2009.
Design: Retrospective review of prospective data.
Setting: Joint Theater Trauma Registry (JTTR).
Patients: The 6092 musculoskeletal casualties contained in the JTTR.
Intervention: The JTTR was queried to identify all personnel sustaining musculoskeletal injuries in the period 2005-2009. Demographic information, injury mechanism, and nature of wounds were determined for all individuals. Deployment data for all service members were obtained through the Defense Manpower Data Center and the incidence of orthopaedic injuries and wounding patterns was assessed.
Main Outcome Measurements: Pairwise comparisons were made to identify statistically significant differences in incidence, and significant associations, between injury mechanism and injuries/wounding patterns.
Results: The JTTR contained data on 6092 musculoskeletal casualties with 17,177 wounds. Seventy-seven percent of all casualties sustained a musculoskeletal wound. The incidence of musculoskeletal combat casualties was 3.06 per 1000 deployed personnel per year, with fractures occurring in 3.41 per 1000 and soft-tissue wounds most commonly encountered (4.04 per 1000). Amputations represented 6% of all combat wounds. Most musculoskeletal wounds were caused by explosive blast (P < 0.001), as were nearly all traumatic amputations.
Conclusions: This study represents the most complete description of the scope of orthopaedic war trauma. It also presents injury-specific incidences that have not previously been described for musculoskeletal combat casualties. Musculoskeletal casualties may occur in 3 of every 1000 personnel deployed per year.
C1 [Belmont, Philip J., Jr.; McCriskin, Brendan J.; Hsiao, Mark S.; Nelson, Kenneth J.; Schoenfeld, Andrew J.] Texas Tech Univ, Hlth Sci Ctr, William Beaumont Army Med Ctr, Dept Orthopaed Surg, El Paso, TX 79920 USA.
[Burks, Robert] USN, Postgrad Sch, Monterey, CA USA.
RP Schoenfeld, AJ (reprint author), Texas Tech Univ, Hlth Sci Ctr, William Beaumont Army Med Ctr, Dept Orthopaed Surg, 5005 N Piedras St, El Paso, TX 79920 USA.
EM ajschoen@neomed.edu
OI Belmont, Philip/0000-0003-2618-199X; Schoenfeld,
Andrew/0000-0002-3691-1215
NR 22
TC 18
Z9 18
U1 1
U2 9
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0890-5339
J9 J ORTHOP TRAUMA
JI J. Orthop. Trauma
PD MAY
PY 2013
VL 27
IS 5
BP E107
EP E113
DI 10.1097/BOT.0b013e3182703188
PG 7
WC Orthopedics; Sport Sciences
SC Orthopedics; Sport Sciences
GA 131DA
UT WOS:000317971200002
PM 23187153
ER
PT J
AU Durran, DR
Reinecke, PA
Doyle, JD
AF Durran, Dale R.
Reinecke, Patrick A.
Doyle, James D.
TI Large-Scale Errors and Mesoscale Predictability in Pacific Northwest
Snowstorms
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Article
ID LIMITED-AREA MODEL; ENSEMBLE KALMAN FILTER; MOIST BAROCLINIC WAVES;
TYRANNOSAURUS-REX; DATA ASSIMILATION; ATMOSPHERIC PREDICTABILITY;
BOUNDARY-CONDITIONS; MOUNTAIN WAVES; JANUARY 2000; PRECIPITATION
AB The predictability of lowland snow in the Puget Sound region of the Pacific Northwest is explored by analyzing the spread in 100-member ensemble simulations for two events from December 2008. Sensitivities to the microphysical and boundary layer parameterizations in these simulations are minimized by estimating the likely precipitation type from the forecast 850-hPa temperatures and the established rain-snow climatology. Results suggest that the ensemble spread in events such as these, which were triggered by amplifying short waves, may develop a significant fraction of both rain-likely members and snow-likely members at forecast lead times as short as 36 h.
The perturbation kinetic energy of the ensemble members about the ensemble mean ((KE') over cap) is not maximized at small scales. Instead, the power in the initial spectrum of (KE') over cap produced by the authors' ensemble Kalman filter (EnKF) data assimilation cycle increases with increasing horizontal scale. The power in (KE') over cap subsequently grows with time, while maintaining approximately the same spectral shape. There is no evidence of small-scale perturbations developing rapidly and transferring their influence upscale. Instead, the large-scale perturbations appear to grow more rapidly during the first 12 h than those at the smallest resolved scales.
C1 [Durran, Dale R.] Univ Washington, Dept Atmospher Sci, Seattle, WA 98125 USA.
[Reinecke, Patrick A.; Doyle, James D.] USN, Res Lab, Monterey, CA USA.
RP Durran, DR (reprint author), Univ Washington, Dept Atmospher Sci, Box 351640, Seattle, WA 98125 USA.
EM durrand@atmos.washington.edu
RI Durran, Dale/G-3677-2015
OI Durran, Dale/0000-0002-6390-2584
FU Office of Naval Research [N00014-11-1-0331]; NSF [ATM-083616]; NRL Base
Program [0601153N]
FX The authors are grateful to Rich Rotunno, Chris Bretherton, Carolyn
Reynolds, Tony Eckel, and Mark Gingrich for illuminating conversations,
and for comments from an anonymous reviewer. D.R.D.'s research was
supported by the Office of Naval Research Grant N00014-11-1-0331 and NSF
Grant ATM-083616. The second and third authors acknowledge the support
of the Chief of Naval Research through Program Element 0601153N of the
NRL Base Program.
NR 38
TC 8
Z9 8
U1 0
U2 11
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0022-4928
J9 J ATMOS SCI
JI J. Atmos. Sci.
PD MAY
PY 2013
VL 70
IS 5
BP 1470
EP 1487
DI 10.1175/JAS-D-12-0202.1
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 131AU
UT WOS:000317963600009
ER
PT J
AU Schully, KL
Sharma, S
Peine, KJ
Pesce, J
Elberson, MA
Fonseca, ME
Prouty, AM
Bell, MG
Borteh, H
Gallovic, M
Bachelder, EM
Keane-Myers, A
Ainslie, KM
AF Schully, Kevin L.
Sharma, Sadhana
Peine, Kevin J.
Pesce, John
Elberson, Margret A.
Fonseca, Mariko. E.
Prouty, Angela M.
Bell, Matthew G.
Borteh, Hassan
Gallovic, Matthew
Bachelder, Eric M.
Keane-Myers, Andrea
Ainslie, Kristy M.
TI Rapid Vaccination Using an Acetalated Dextran Microparticulate Subunit
Vaccine Confers Protection Against Triplicate Challenge by Bacillus
Anthracis
SO PHARMACEUTICAL RESEARCH
LA English
DT Article
DE anthrax; bacterial vaccine; inhalation anthrax; polymeric
nanoparticle/microparticle; vaccine
ID IN-VITRO ANALYSIS; IMMUNE-RESPONSES; MONOCLONAL-ANTIBODIES; DENDRITIC
CELLS; PARTICLE-SIZE; ANTIGEN; IMMUNOGENICITY; IMIQUIMOD; DELIVERY;
VECTORS
AB A rapid immune response is required to prevent death from Anthrax, caused by Bacillus anthracis.
We formulated a vaccine carrier comprised of acetalated dextran microparticles encapsulating recombinant protective antigen (rPA) and resiquimod (a toll-like receptor 7/8 agonist).
We were able to protect against triplicate lethal challenge by vaccinating twice (Days 0, 7) and then aggressively challenging on Days 14, 21, 28. A significantly higher level of antibodies was generated by day 14 with the encapsulated group compared to the conventional rPA and alum group. Antibodies produced by the co-encapsulated group were only weakly-neutralizing in toxin neutralization; however, survival was not dependent on toxin neutralization, as all vaccine formulations survived all challenges except control groups. Post-mortem culture swabs taken from the hearts of vaccinated groups that did not produce significant neutralizing titers failed to grow B. anthracis.
Results indicate that protective antibodies are not required for rapid protection; indeed, cytokine results indicate that T cell protection may play a role in protection from anthrax. We report the first instance of use of a particulate carrier to generate a rapid protective immunity against anthrax.
C1 [Schully, Kevin L.; Pesce, John; Elberson, Margret A.; Fonseca, Mariko. E.; Prouty, Angela M.; Bell, Matthew G.; Keane-Myers, Andrea] USN, Med Res Ctr, Vaccine & Med Countermeasures Dept, Biol Def Res Directorate, Silver Spring, MD 20910 USA.
[Sharma, Sadhana; Peine, Kevin J.; Borteh, Hassan; Bachelder, Eric M.; Ainslie, Kristy M.] Ohio State Univ, Coll Pharm, Div Pharmaceut, Columbus, OH 43210 USA.
[Gallovic, Matthew] Ohio State Univ, William G Lowrie Dept Chem & Biomol Engn, Coll Engn, Columbus, OH 43210 USA.
RP Ainslie, KM (reprint author), Ohio State Univ, Coll Pharm, Div Pharmaceut, 500 W 12th Ave,242 LM Parks Hall, Columbus, OH 43210 USA.
EM Ainslie.1@osu.edu
OI Ainslie, Kristy/0000-0002-1820-8382
FU DAPRA Grant [W911NF-10-1-0264]
FX The authors would like to thank our funding source DAPRA Grant
W911NF-10-1-0264. The views expressed in this article are those of the
author and do not necessarily reflect the official policy or position of
the Department of the Navy, Department of Defense, nor the US
Government.
NR 51
TC 10
Z9 10
U1 2
U2 23
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0724-8741
J9 PHARM RES-DORDR
JI Pharm. Res.
PD MAY
PY 2013
VL 30
IS 5
BP 1349
EP 1361
DI 10.1007/s11095-013-0975-x
PG 13
WC Chemistry, Multidisciplinary; Pharmacology & Pharmacy
SC Chemistry; Pharmacology & Pharmacy
GA 122WC
UT WOS:000317348000013
PM 23354770
ER
PT J
AU Mott, PH
Roland, CM
AF Mott, P. H.
Roland, C. M.
TI Limits to Poisson's ratio in isotropic materials-general result for
arbitrary deformation
SO PHYSICA SCRIPTA
LA English
DT Article
ID INCOMPRESSIBLE MATERIALS; ELASTIC PROPERTIES; BULK MODULUS; DIAMOND;
CONSTANTS; SILICON; FOAM
AB The lower bound customarily cited for Poisson's ratio nu, -1, is derived from the relationship between nu and the bulk and shear moduli in the classical theory of linear elasticity. However, experimental verification of the theory has been limited to materials having nu >= 0.2. From consideration of the longitudinal and biaxial moduli, we recently determined that the lower bound on nu for isotropic materials from this theory is actually 1/5. Herein we generalize this result, first by analyzing expressions for nu in terms of six common elastic constants, and then by considering arbitrary strains. The results corroborate that nu > 1/5 for classical linear elasticity to be applicable. Of course, a few materials exist for which nu < 0.2, thus deviating from this bound; accurate analysis of their mechanical behavior requires more sophisticated elasticity models.
C1 [Mott, P. H.; Roland, C. M.] USN, Div Chem, Res Lab, Washington, DC 20375 USA.
RP Mott, PH (reprint author), USN, Div Chem, Res Lab, Code 6120, Washington, DC 20375 USA.
EM peter.mott@nrl.navy.mil; mike.roland@nrl.navy.mil
FU Office of Naval Research
FX We acknowledge useful discussions with D M Fragiadakis, R S Lakes and K
M Knowles. This work was supported by the Office of Naval Research.
NR 47
TC 6
Z9 7
U1 2
U2 21
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0031-8949
EI 1402-4896
J9 PHYS SCRIPTA
JI Phys. Scr.
PD MAY
PY 2013
VL 87
IS 5
AR 055404
DI 10.1088/0031-8949/87/05/055404
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 135FT
UT WOS:000318274400015
ER
PT J
AU Vourlidas, A
Lynch, BJ
Howard, RA
Li, Y
AF Vourlidas, A.
Lynch, B. J.
Howard, R. A.
Li, Y.
TI How Many CMEs Have Flux Ropes? Deciphering the Signatures of Shocks,
Flux Ropes, and Prominences in Coronagraph Observations of CMEs
SO SOLAR PHYSICS
LA English
DT Article
DE Coronal mass ejections, low coronal signatures; Coronal mass ejections,
initiation and propagation
ID INTERPLANETARY MAGNETIC CLOUDS; EJECTION-ASSOCIATED SHOCK; MASS
EJECTIONS; CONE MODEL; OUTER CORONA; WHITE-LIGHT; LARGE-ANGLE; LASCO;
TRANSIENTS; BREAKOUT
AB We intend to provide a comprehensive answer to the question on whether all Coronal Mass Ejections (CMEs) have flux rope structure. To achieve this, we present a synthesis of the LASCO CME observations over the last 16 years, assisted by 3D MHD simulations of the breakout model, EUV and coronagraphic observations from STEREO and SDO, and statistics from a revised LASCO CME database. We argue that the bright loop often seen as the CME leading edge is the result of pileup at the boundary of the erupting flux rope irrespective of whether a cavity or, more generally, a three-part CME can be identified. Based on our previous work on white light shock detection and supported by the MHD simulations, we identify a new type of morphology, the 'two-front' morphology. It consists of a faint front followed by diffuse emission and the bright loop-like CME leading edge. We show that the faint front is caused by density compression at a wave (or possibly shock) front driven by the CME. We also present highly detailed multi-wavelength EUV observations that clarify the relative positioning of the prominence at the bottom of a coronal cavity with a clear flux rope structure. Finally, we visually check the full LASCO CME database for flux rope structures. In the process, we classify the events into two clear flux rope classes ('three-part', and 'Loop'), jets and outflows (no clear structure). We find that at least 40 % of the observed CMEs have clear flux rope structures and that similar to aEuro parts per thousand 29 % of the database entries are either misidentifications or inadequately measured and should be discarded from statistical analyses. We propose a new definition for flux rope CMEs (FR-CMEs) as a coherent magnetic, twist-carrying coronal structure with angular width of at least 40(a similar to) and able to reach beyond 10 R-aS (TM) which erupts on a time scale of a few minutes to several hours. We conclude that flux ropes are a common occurrence in CMEs and pose a challenge for future studies to identify CMEs that are clearly not FR-CMEs.
C1 [Vourlidas, A.; Howard, R. A.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Lynch, B. J.; Li, Y.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
RP Vourlidas, A (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM vourlidas@nrl.navy.mil
RI Vourlidas, Angelos/C-8231-2009; Lynch, Benjamin/B-1300-2013;
OI Vourlidas, Angelos/0000-0002-8164-5948; Lynch,
Benjamin/0000-0001-6886-855X
FU NASA [S-136361-Y, NNX11AJ65G, NNX08AJ04G]; AFOSR YIP [FA9550-11-1-0048]
FX The work of AV and RAH is supported by NASA contract S-136361-Y to the
Naval Research Laboratory. BJL and YL acknowledge support from AFOSR YIP
FA9550-11-1-0048, NASA NNX11AJ65G, and NNX08AJ04G. We thank G. Stenborg
for his continuing efforts to provide better quality solar images. SOHO
is an international collaboration between NASA and ESA. LASCO was
constructed by a consortium of institutions: the Naval Research
Laboratory (Washington, DC, USA), the Max-Planck-Institut fur Aeronomie
(Katlenburg-Lindau, Germany), the Laboratoire d'Astronomie Spatiale
(Marseille, France) and the University of Birmingham (Birmingham, UK).
The LASCO CME catalog is generated and maintained at the CDAW Data
Center by NASA and The Catholic University of America in cooperation
with the Naval Research Laboratory. The SECCHI data are produced by an
international consortium of the NRL, LMSAL and NASA GSFC (USA), RAL and
Univ. Bham (UK), MPS (Germany), CSL (Belgium), IOTA and IAS (France).
NR 78
TC 79
Z9 79
U1 1
U2 12
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0038-0938
EI 1573-093X
J9 SOL PHYS
JI Sol. Phys.
PD MAY
PY 2013
VL 284
IS 1
BP 179
EP 201
DI 10.1007/s11207-012-0084-8
PG 23
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 133ZL
UT WOS:000318179300012
ER
PT J
AU Isavnin, A
Vourlidas, A
Kilpua, EKJ
AF Isavnin, A.
Vourlidas, A.
Kilpua, E. K. J.
TI Three-Dimensional Evolution of Erupted Flux Ropes from the Sun (2-20
R-circle dot) to 1 AU
SO SOLAR PHYSICS
LA English
DT Article
DE Coronal mass ejections, interplanetary; Magnetic fields, interplanetary;
Magnetic fields, models
ID CORONAL MASS EJECTIONS; SOLAR-WIND; STEREO; DEFLECTION; ROTATION;
STORMS; LASCO
AB Studying the evolution of magnetic clouds entrained in coronal mass ejections using in-situ data is a difficult task, since only a limited number of observational points is available at large heliocentric distances. Remote sensing observations can, however, provide important information for events close to the Sun. In this work we estimate the flux rope orientation first in the close vicinity of the Sun (2 -aEuro parts per thousand 20 R (aS (TM))) using forward modeling of STEREO/SECCHI and SOHO/LASCO coronagraph images of coronal mass ejections and then in situ using Grad-Shafranov reconstruction of the magnetic cloud. Thus, we are able to measure changes in the orientation of the erupted flux ropes as they propagate from the Sun to 1 AU. We present both techniques and use them to study 15 magnetic clouds observed during the minimum following Solar Cycle 23 and the rise of Solar Cycle 24. This is the first multievent study to compare the three-dimensional parameters of CMEs from imaging and in-situ reconstructions. The results of our analysis confirm earlier studies showing that the flux ropes tend to deflect towards the solar equatorial plane. We also find evidence of rotation on their travel from the Sun to 1 AU. In contrast to past studies, our method allows one to deduce the evolution of the three-dimensional orientation of individual flux ropes rather than on a statistical basis.
C1 [Isavnin, A.; Kilpua, E. K. J.] Univ Helsinki, Dept Phys, Helsinki 00014, Finland.
[Vourlidas, A.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Isavnin, A (reprint author), Univ Helsinki, Dept Phys, POB 64, Helsinki 00014, Finland.
EM Alexey.Isavnin@helsinki.fi
RI Kilpua, Emilia/G-8994-2012; Vourlidas, Angelos/C-8231-2009;
OI Vourlidas, Angelos/0000-0002-8164-5948; Isavnin,
Alexey/0000-0002-7178-627X
FU Academy of Finland; NASA [S-136361-Y]
FX The work of A. Isavnin and E. Kilpua was supported by the Academy of
Finland. The work of A. Vourlidas is supported by NASA contract
S-136361-Y to the Naval Research Laboratory. LASCO was constructed by a
consortium of institutions: NRL (USA), MPI fur Aeronomie (Germany), LAS
(France) and University of Birmingham (UK). The SECCHI data are produced
by an international consortium of the NRL, LMSAL and NASA GSFC (USA),
RAL and University of Birmingham (UK), MPS (Germany), CSL (Belgium),
IOTA and IAS (France).
NR 29
TC 17
Z9 17
U1 1
U2 9
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0038-0938
J9 SOL PHYS
JI Sol. Phys.
PD MAY
PY 2013
VL 284
IS 1
BP 203
EP 215
DI 10.1007/s11207-012-0214-3
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 133ZL
UT WOS:000318179300013
ER
PT J
AU Nimer, S
Wolk, J
Zupan, M
AF Nimer, Salahudin
Wolk, Jennifer
Zupan, Marc
TI Local property characterization of friction stir welded Ti-5111:
Transverse orientation measurements
SO ACTA MATERIALIA
LA English
DT Article
DE Friction stir welding; Titanium alloys; Titanium 5111; Microsampling
ID TI-6AL-4V; BEHAVIOR
AB Friction stir welding (FSW) provides many advantages over traditional joining techniques, the most significant of which is lower cost of fabrication. Titanium alloys provide a high specific strength and increased corrosion resistance, which makes them an attractive material for use in extreme environments, such as those experienced by the next generation vehicle systems - marine, air, land or space. This research is focused on understanding the local mechanical properties and microstructure of a friction stir weld of a 12.7 mm thick plate of Ti-5111 in the direction transverse to the weld. The weld showed significant increases in strength and ductility in the stir zone. The retreating side of the weld showed reduced strength and ductility below the base property. This result, however, was found to be limited to the microscale. The understanding gained from this research should lead to future process optimizations of FSW. (c) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Nimer, Salahudin; Zupan, Marc] Univ Maryland Baltimore Cty, Dept Mech Engn, Baltimore, MD 21250 USA.
[Wolk, Jennifer] NSWCCD Naval Surface Warfare Ctr, Carderock Div, Bethesda, MD 20817 USA.
[Zupan, Marc] FEUP, Dept Engn Mecan, P-4200465 Oporto, Portugal.
RP Zupan, M (reprint author), Univ Maryland Baltimore Cty, Dept Mech Engn, 1000 Hilltop Circle, Baltimore, MD 21250 USA.
EM mzupan@umbc.edu
FU Office of Naval Research [N00014-10-1-0573]; Naval Surface Warfare
Center, Carderock Division
FX This work was supported by, and was carried out in collaboration with,
the Office of Naval Research (Grant No. N00014-10-1-0573 and program
manager Dr. William Mullins), the Naval Surface Warfare Center,
Carderock Division.
NR 22
TC 10
Z9 10
U1 5
U2 41
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
J9 ACTA MATER
JI Acta Mater.
PD MAY
PY 2013
VL 61
IS 8
SI SI
BP 3050
EP 3059
DI 10.1016/j.actamat.2013.01.065
PG 10
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 128VL
UT WOS:000317797700030
ER
PT J
AU Marques, TA
Thomas, L
Martin, SW
Mellinger, DK
Ward, JA
Moretti, DJ
Harris, D
Tyack, PL
AF Marques, Tiago A.
Thomas, Len
Martin, Stephen W.
Mellinger, David K.
Ward, Jessica A.
Moretti, David J.
Harris, Danielle
Tyack, Peter L.
TI Estimating animal population density using passive acoustics
SO BIOLOGICAL REVIEWS
LA English
DT Review
DE acoustic surveys; bioacoustics; density estimation; distance sampling;
passive acoustic monitoring; spatially explicit capture-recapture; fixed
sensors; hydrophones
ID SOUTHERN CALIFORNIA BIGHT; CAPTURE-RECAPTURE DATA; SPERM-WHALE
ABUNDANCE; CALL SOURCE LEVELS; FINLESS PORPOISES; BEAKED-WHALES;
INDIVIDUAL RECOGNITION; HYDROPHONE ARRAY; HALOBATRACHUS-DIDACTYLUS;
VOCALIZATION PATTERNS
AB Reliable estimation of the size or density of wild animal populations is very important for effective wildlife management, conservation and ecology. Currently, the most widely used methods for obtaining such estimates involve either sighting animals from transect lines or some form of capture-recapture on marked or uniquely identifiable individuals. However, many species are difficult to sight, and cannot be easily marked or recaptured. Some of these species produce readily identifiable sounds, providing an opportunity to use passive acoustic data to estimate animal density. In addition, even for species for which other visually based methods are feasible, passive acoustic methods offer the potential for greater detection ranges in some environments (e.g. underwater or in dense forest), and hence potentially better precision. Automated data collection means that surveys can take place at times and in places where it would be too expensive or dangerous to send human observers. Here, we present an overview of animal density estimation using passive acoustic data, a relatively new and fast-developing field. We review the types of data and methodological approaches currently available to researchers and we provide a framework for acoustics-based density estimation, illustrated with examples from real-world case studies. We mention moving sensor platforms (e.g. towed acoustics), but then focus on methods involving sensors at fixed locations, particularly hydrophones to survey marine mammals, as acoustic-based density estimation research to date has been concentrated in this area. Primary among these are methods based on distance sampling and spatially explicit capture-recapture. The methods are also applicable to other aquatic and terrestrial sound-producing taxa. We conclude that, despite being in its infancy, density estimation based on passive acoustic data likely will become an important method for surveying a number of diverse taxa, such as sea mammals, fish, birds, amphibians, and insects, especially in situations where inferences are required over long periods of time. There is considerable work ahead, with several potentially fruitful research areas, including the development of (i) hardware and software for data acquisition, (ii) efficient, calibrated, automated detection and classification systems, and (iii) statistical approaches optimized for this application. Further, survey design will need to be developed, and research is needed on the acoustic behaviour of target species. Fundamental research on vocalization rates and group sizes, and the relation between these and other factors such as season or behaviour state, is critical. Evaluation of the methods under known density scenarios will be important for empirically validating the approaches presented here.
C1 [Marques, Tiago A.; Thomas, Len; Harris, Danielle] Univ St Andrews, Ctr Res Ecol & Environm Modelling, Buchanan Gardens KY16 9LZ, Fife, Scotland.
[Marques, Tiago A.] Univ Lisbon, Ctr Estat & Aplicacoes, P-1749016 Lisbon, Portugal.
[Martin, Stephen W.] Space & Naval Warfare Syst Ctr Pacific, San Diego, CA 92152 USA.
[Mellinger, David K.] Oregon State Univ, Cooperat Inst Marine Resources Studies, Newport, OR 97365 USA.
[Mellinger, David K.] NOAA, Pacific Marine Environm Lab, Newport, OR 97365 USA.
[Ward, Jessica A.; Moretti, David J.] USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
[Tyack, Peter L.] Univ St Andrews, Scottish Oceans Inst, Sea Mammal Res Unit, St Andrews KY16 8LB, Fife, Scotland.
RP Marques, TA (reprint author), Univ St Andrews, Ctr Res Ecol & Environm Modelling, Buchanan Gardens KY16 9LZ, Fife, Scotland.
EM tiago@mcs.st-and.ac.uk
RI Tyack, Peter/D-6209-2013; Marques, Tiago/A-5530-2010;
OI Tyack, Peter/0000-0002-8409-4790; Marques, Tiago/0000-0002-2581-1972;
Thomas, Len/0000-0002-7436-067X
FU National Oceanographic Partnership Program; Joint Industry Program of
the International Association of Oil and Gas Producers; US National
Marine Fisheries Service; Fundacao Nacional para a Ciencia e Tecnologia,
Portugal (FCT) [PEst OE/MAT/UI0006/2011]; Office of Naval Research
[N00014-11-1-0606]; Naval Postgraduate School [N00244-11-1-0026]; UK
Defence Science and Technology Laboratory
FX The framework described here was the outcome of a 3-year project,
Density Estimation for Cetaceans from passive Acoustic Fixed sensors
(DECAF), sponsored by the National Oceanographic Partnership Program and
funded jointly by the Joint Industry Program of the International
Association of Oil and Gas Producers and the US National Marine
Fisheries Service. We thank all DECAF members for many insightful
discussions and contributions, particularly the project steering
committee: Jay Barlow, Steve Buckland and Walter Zimmer. DECAF's project
manager Catriona Harris provided very useful comments on the manuscript,
as did Tom Norris. T. A. M. was partially sponsored by national funds
through the Fundacao Nacional para a Ciencia e Tecnologia, Portugal
(FCT) under the project PEst OE/MAT/UI0006/2011. DKM was also supported
by Office of Naval Research grant N00014-11-1-0606 and Naval
Postgraduate School grant N00244-11-1-0026. L.T. thanks John Hildebrand
for initially piquing his interest in bioacoustics, and for spending
many hours during his sabbatical in St Andrews trying to teach him
something about it. D.H. was supported by the UK Defence Science and
Technology Laboratory. This is PMEL contribution #3698.
NR 174
TC 68
Z9 69
U1 20
U2 250
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1464-7931
J9 BIOL REV
JI Biol. Rev.
PD MAY
PY 2013
VL 88
IS 2
BP 287
EP 309
DI 10.1111/brv.12001
PG 23
WC Biology
SC Life Sciences & Biomedicine - Other Topics
GA 119AD
UT WOS:000317067900003
PM 23190144
ER
PT J
AU Lumb, MP
Bailey, CG
Adams, JGJ
Hillier, G
Tuminello, F
Elarde, VC
Walters, RJ
AF Lumb, Matthew P.
Bailey, Christopher G.
Adams, Jessica G. J.
Hillier, Glen
Tuminello, Francis
Elarde, Victor C.
Walters, Robert J.
TI Extending the 1-D Hovel Model for Coherent and Incoherent Back
Reflections in Homojunction Solar Cells
SO IEEE JOURNAL OF QUANTUM ELECTRONICS
LA English
DT Article
DE Photovoltaic cells; reflection; semiconductor device modeling
ID FRONT-SURFACE-FIELD; GAAS; PHOTOCURRENT; SIMULATION; EFFICIENCY
AB In this paper we extend the analytical drift-diffusion model, or Hovel model, to model the electrical characteristics of solar cells incorporating a back mirror. We use a compact summation approach to derive modified optical generation functions in Homojunction solar cells, considering both coherent and incoherent reflections from the back reflector. These modified generation functions are then used to derive analytical formulae for the current-voltage characteristics of mirrored solar cells. We simulate the quantum efficiency of a simple GaAs np diode with a planar gold back reflector, and compare the results with the standard Hovel model using a generation function given by the Beer-Lambert law. Finally, we use the model to simulate the performance of a real GaAs solar cell device fabricated using an epitaxial-lift-off procedure, demonstrating excellent agreement between the simulated and measured characteristics.
C1 [Lumb, Matthew P.; Bailey, Christopher G.; Walters, Robert J.] USN, Res Lab, Washington, DC 20375 USA.
[Lumb, Matthew P.] George Washington Univ, Washington, DC 20037 USA.
[Adams, Jessica G. J.; Hillier, Glen; Tuminello, Francis; Elarde, Victor C.] MicroLink Devices Inc, Niles, IL 60714 USA.
RP Lumb, MP (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM matthew.lumb.ctr.uk@nrl.navy.mil; chris.bailey.ctr@nrl.navy.mil;
jadams@mldevices.com; GHillier@mldevices.com; ftuminello@mldevices.com;
velarde@mldevices.com; robert.walters@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 27
TC 15
Z9 15
U1 0
U2 11
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9197
J9 IEEE J QUANTUM ELECT
JI IEEE J. Quantum Electron.
PD MAY
PY 2013
VL 49
IS 5
BP 462
EP 470
DI 10.1109/JQE.2013.2252148
PG 9
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 128BT
UT WOS:000317743800001
ER
PT J
AU Gorzkowski, EP
Qadri, SB
Rath, BB
Goswami, R
Caldwell, JD
AF Gorzkowski, E. P.
Qadri, S. B.
Rath, B. B.
Goswami, R.
Caldwell, J. D.
TI Formation of Nanodimensional 3C-SiC Structures from Rice Husks
SO JOURNAL OF ELECTRONIC MATERIALS
LA English
DT Article
DE beta-SiC; nanorods; rice husk; nanotubes
AB We have demonstrated that large quantities of beta-SiC nanostructures can be obtained from rice husk agricultural waste by using controlled conditions in a thermogravimetric setup. This simple and inexpensive method of producing these structures on a large scale is critical for applications in nanoelectronics, nanosensors, and biotechnology. The temperature and atmosphere are two critical elements in forming either alpha-cristobalite (SiO2) or beta-SiC. Using different characterization methods (x-ray diffraction, scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy), we have shown that pyrolysis of rice husks in argon atmosphere at 1375A degrees C results in simultaneous formation of carbon nanotubes, beta-SiC nanowires/nanorods, and beta-SiC powder.
C1 [Gorzkowski, E. P.; Qadri, S. B.; Rath, B. B.; Goswami, R.; Caldwell, J. D.] USN, Res Lab, Washington, DC 20375 USA.
RP Gorzkowski, EP (reprint author), USN, Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
EM edward.gorzkowski@nrl.navy.mil
RI Caldwell, Joshua/B-3253-2008
OI Caldwell, Joshua/0000-0003-0374-2168
NR 11
TC 9
Z9 9
U1 2
U2 24
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0361-5235
J9 J ELECTRON MATER
JI J. Electron. Mater.
PD MAY
PY 2013
VL 42
IS 5
BP 799
EP 804
DI 10.1007/s11664-012-2421-y
PG 6
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Applied
SC Engineering; Materials Science; Physics
GA 131JD
UT WOS:000317988300003
ER
PT J
AU Lira, J
Molina, C
Rakvic, RN
Gonzalez, A
AF Lira, Javier
Molina, Carlos
Rakvic, Ryan N.
Gonzalez, Antonio
TI Replacement techniques for dynamic NUCA cache designs on CMPs
SO JOURNAL OF SUPERCOMPUTING
LA English
DT Article
DE D-NUCA; Replacement; CMP
ID SYSTEM SIMULATION
AB The growing influence of wire delay in cache design has meant that access latencies to last-level cache banks are no longer constant. Non-Uniform Cache Architectures (NUCAs) have been proposed to address this problem. Furthermore, an efficient last-level cache is crucial in chip multiprocessors (CMP) architectures to reduce requests to the offchip memory, because of the significant speed gap between processor and memory. Therefore, a bank replacement policy that efficiently manages the NUCA cache is desirable. However, the decentralized nature of NUCA has eliminated the effectiveness of replacement policies because banks operate independently of each other, and hence their replacement decisions are restricted to a single NUCA bank. In this paper, we propose three different techniques to deal with replacements in NUCA caches.
C1 [Lira, Javier; Gonzalez, Antonio] Intel Labs UPC, Intel Barcelona Res Ctr, Barcelona 2908034, Spain.
[Molina, Carlos] Univ Rovira & Virgili, Dept Comp Engn & Math, Tarragona 2643007, Spain.
[Rakvic, Ryan N.] USN Acad, Dept Elect Engn, Annapolis, MD 21402 USA.
RP Lira, J (reprint author), Intel Labs UPC, Intel Barcelona Res Ctr, Barcelona 2908034, Spain.
EM javier.lira@intel.com; carlos.molina@urv.net; rakvic@usna.edu;
antonio.gonzalez@intel.com
OI Barranco-Molina, Carlos/0000-0002-0271-4627
NR 38
TC 1
Z9 1
U1 0
U2 1
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0920-8542
J9 J SUPERCOMPUT
JI J. Supercomput.
PD MAY
PY 2013
VL 64
IS 2
BP 548
EP 579
DI 10.1007/s11227-012-0859-6
PG 32
WC Computer Science, Hardware & Architecture; Computer Science, Theory &
Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA 126ZN
UT WOS:000317662700017
ER
PT J
AU Fernando, BPW
Sritharan, SS
AF Fernando, B. P. W.
Sritharan, S. S.
TI Nonlinear Filtering of Stochastic Navier-Stokes Equation with Ito-Levy
Noise
SO STOCHASTIC ANALYSIS AND APPLICATIONS
LA English
DT Article
DE Fujisaki-Kallianpur-Kunita equation; Ito-Levy noise; Nonlinear
filtering; Stochastic Navier-Stokes equation; Zakai equation
AB In this article, we study the existence and uniqueness of the strong pathwise solution of stochastic Navier-Stokes equation with Ito-Levy noise. Nonlinear filtering problem is formulated for the recursive estimation of conditional expectation of the flow field given back measurements of sensor output data. The corresponding Fujisaki-Kallianpur-Kunita and Zakai equations describing the time evolution of the nonlinear filter are derived. Existence and uniqueness of measure-valued solutions are proven for these filtering equations.
C1 [Fernando, B. P. W.; Sritharan, S. S.] USN, Postgrad Sch, Ctr Decis Risk Controls & Signals Intelligence DR, Monterey, CA 93943 USA.
RP Sritharan, SS (reprint author), USN, Postgrad Sch, Ctr Decis Risk Controls & Signals Intelligence DR, Monterey, CA 93943 USA.
EM sssritha@nps.edu
OI Sritharan, Sivaguru/0000-0003-2845-332X
FU Army Research Probability and Statistics Program
FX This work has been supported by the Army Research Probability and
Statistics Program. The authors would like to thank Professor V. S.
Mandrekar and an anonymous referee for many valuable comments.
NR 50
TC 3
Z9 3
U1 0
U2 6
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 0736-2994
EI 1532-9356
J9 STOCH ANAL APPL
JI Stoch. Anal. Appl.
PD MAY 1
PY 2013
VL 31
IS 3
BP 381
EP 426
DI 10.1080/07362994.2013.759482
PG 46
WC Mathematics, Applied; Statistics & Probability
SC Mathematics
GA 129IW
UT WOS:000317833600002
ER
PT J
AU Taverniers, J
Taylor, MK
Smeets, T
AF Taverniers, John
Taylor, Marcus K.
Smeets, Tom
TI Delayed memory effects after intense stress in Special Forces
candidates: Exploring path processes between cortisol secretion and
memory recall
SO STRESS-THE INTERNATIONAL JOURNAL ON THE BIOLOGY OF STRESS
LA English
DT Article
DE Delayed recall; glucocorticoids; immediate recall; multiple mediation;
real-life stress; Rey-Osterrieth Complex Figure
ID HEALTHY-YOUNG MEN; DECLARATIVE MEMORY; SALIVARY CORTISOL;
NEUROPEPTIDE-Y; RETRIEVAL; HUMANS; CONSOLIDATION; PERFORMANCE;
MEDIATION; HARDINESS
AB The aim of this paper is twofold. First, it explores delayed effects of high endogenously evoked cortisol concentrations on visuo-spatial declarative memory. Subsequently, it applies multiple mediation (MM) analyses to reveal path processes between stress and cognitive performance in a sample of 24 male Special Forces (SF) candidates (mean age = 27.0 years, SD = 4.1). The SF candidates were randomly assigned to a control (n = 12) or an intense stress group (n = 12), and cortisol secretion for the intense stress condition was triggered by a brusque 60 min prisoner of war exercise. Stress exposure provoked robust increases in cortisol concentrations and a significant decline in immediate recall performance, measured with the Rey-Osterrieth Complex Figure (ROCF). The relative retrieval differences in regard to the ROCF persisted even after a recovery period of 24 h, as both groups showed similar levels of memory decline over 24 h. Next, the study applied a MM design that involved distribution-independent asymptotic and resampling strategies to extend traditional bivariate analyses. MM results showed that ROCF performance was mediated by increases in cortisol concentrations. Considering the studied variables, the current analysis was the first to provide statistical support for the generally accepted thesis that cortisol secretion in itself, rather than subjective strain or the experimental treatment, affects cognitive performance. The revelation of such path processes is important because it establishes process identification and may refine existing paradigms.
C1 [Taverniers, John] Royal Mil Acad, Dept Behav Sci, Brussels, Belgium.
[Taylor, Marcus K.] USN, Hlth Res Ctr, Dept Behav Sci & Epidemiol, San Diego, CA 92152 USA.
[Smeets, Tom] Maastricht Univ, Fac Psychol & Neurosci, Maastricht, Netherlands.
RP Taverniers, J (reprint author), Royal Mil Acad, Dept Behav Sci, Renaissancelaan 30, Brussels, Belgium.
EM john.taverniers@rma.ac.be
RI Smeets, Tom/H-1212-2011
OI Smeets, Tom/0000-0002-3773-0264
NR 58
TC 7
Z9 7
U1 2
U2 12
PU INFORMA HEALTHCARE
PI LONDON
PA TELEPHONE HOUSE, 69-77 PAUL STREET, LONDON EC2A 4LQ, ENGLAND
SN 1025-3890
J9 STRESS
JI Stress
PD MAY
PY 2013
VL 16
IS 3
BP 311
EP 320
DI 10.3109/10253890.2012.721824
PG 10
WC Behavioral Sciences; Endocrinology & Metabolism; Neurosciences
SC Behavioral Sciences; Endocrinology & Metabolism; Neurosciences &
Neurology
GA 124SO
UT WOS:000317486300005
PM 22900536
ER
PT J
AU Parsons, JK
Palazzi, K
Chang, D
Stroup, SP
AF Parsons, J. Kellogg
Palazzi, Kerrin
Chang, David
Stroup, Sean P.
TI Patient safety and the diffusion of surgical innovations: a national
analysis of laparoscopic partial nephrectomy
SO SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES
LA English
DT Article
DE Kidney cancer; Laparoscopic partial nephrectomy; Open partial
nephrectomy; Partial nephrectomy; Patient safety; Patient safety
indicator
ID SURGERY; TECHNOLOGY; OUTCOMES; TRENDS; TUMORS
AB There are scant data on patient safety and the national diffusion of surgical innovations. Laparoscopic partial nephrectomy (LPN) provides an apt model for population-based analyses of patient safety and the propagation of complex surgical innovations.
In the nationwide inpatient sample, we identified patients undergoing partial nephrectomy for renal tumors from 1998 to 2009 and utilized patient safety indicators (PSI) to measure preventable adverse outcomes.
Of the cases, 68,713 (87 %) were OPN and 9,842 (13 %) were LPN. The prevalence of LPN increased more than threefold from 2006 to 2009. Compared to open partial nephrectomy (OPN), LPN patients were more likely to be younger (p = 0.022), have lower Charlson comorbidity scores (p = 0.002), and undergo surgery at urban (p < 0.001) and teaching (p = 0.02) hospitals. On multivariate analysis, LPN was associated with a 28 % decreased probability of any PSI (adjusted odds ratio [ORadj] 0.72, 95 % confidence interval [CI] 0.55-0.96, p = 0.025), although this benefit did not attain significance when comparing robot-assisted LPN to OPN (ORadj 0.72, 95 % CI 0.44-1.16, p = 0.173). Overall mortality decreased from 0.9 % in 1998 to 0.1 % in 2009 (p < 0.001). There were no differences in adjusted mortality between LPN and OPN (p = 0.75).
During its initial national diffusion, LPN resulted in enhanced perioperative patient safety compared to OPN. Mortality for both LPN and OPN decreased over time. Further study is needed to elucidate and promote factors contributing to the safe diffusion of complex surgical innovations.
C1 [Parsons, J. Kellogg; Palazzi, Kerrin; Chang, David; Stroup, Sean P.] UC San Diego Med Ctr, Div Urol, San Diego, CA USA.
[Parsons, J. Kellogg] VA San Diego Med Ctr, San Diego, CA USA.
[Parsons, J. Kellogg] Moores UCSD Canc Ctr, Div Urol Oncol, La Jolla, CA 92037 USA.
[Stroup, Sean P.] USN, San Diego Med Ctr, Dept Urol, San Diego, CA 92152 USA.
RP Parsons, JK (reprint author), Moores UCSD Canc Ctr, Div Urol Oncol, La Jolla, CA 92037 USA.
EM k0parsons@ucsd.edu
NR 21
TC 14
Z9 14
U1 0
U2 9
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0930-2794
J9 SURG ENDOSC
JI Surg. Endosc.
PD MAY
PY 2013
VL 27
IS 5
BP 1674
EP 1680
DI 10.1007/s00464-012-2655-z
PG 7
WC Surgery
SC Surgery
GA 129PG
UT WOS:000317853100030
PM 23239306
ER
PT J
AU Shiels, AB
Flores, CA
Khamsing, A
Krushelnycky, PD
Mosher, SM
Drake, DR
AF Shiels, Aaron B.
Flores, Caitlin A.
Khamsing, Arthur
Krushelnycky, Paul D.
Mosher, Stephen M.
Drake, Donald R.
TI Dietary niche differentiation among three species of invasive rodents
(Rattus rattus, R-exulans, Mus musculus)
SO BIOLOGICAL INVASIONS
LA English
DT Article
DE Arthropod prey; Fruit and seed diet; Hawaiian Islands; Stable isotopes;
delta C-13; delta N-15
ID INTRODUCED BLACK RATS; DISCRIMINATION FACTORS DELTA-N-15; NEW-ZEALAND;
STABLE-ISOTOPES; ISLAND ECOSYSTEMS; TROPHIC POSITION; ANIMAL ECOLOGY;
SMALL MAMMALS; HOUSE MICE; FOOD
AB The diets of sympatric rodents partially define their realized niches. Identifying items in stomachs of introduced rodents helps determine rodents' trophic positions and species most at risk of consumption. In the Hawaiian Islands, which lacked rodents prior to human arrival, three rodents (Rattus rattus or black rat, R. exulans or Pacific rat, Mus musculus or house mouse) commonly coexist in native habitats where they consume a wide range of plants and animals. These three rodent species were trapped in montane forest for 2.5 years; their stomach contents were analyzed to determine short-term diets (n = 12-95 indiv. per species), and isotopic fractions of delta N-15 and delta C-13 in their bone collagen were analyzed to further estimate their trophic positions (n = 11-20 indiv. per species). For all three species, > 75 % of individuals had plants and > 90 % had arthropods in their stomachs, and significant differences in mean relative abundances were found for food items in stomachs among all three rodents. Rodents may be dispersing some native and non-native seeds, including the highly invasive Clidemia hirta. Most identifiable arthropods in rodent stomachs were non-native, and no stomachs contained birds, snails, or lizards. The delta N-15 and delta C-13 signatures were consistent with trophic feeding differences revealed from stomach contents. Dietary niche differentiation by coexisting rodent species is evident in this forest, with Pacific rats being intermediate between the mostly carnivorous house mouse and the mostly herbivorous black rat; such findings can help forecast rodent impacts and direct management efforts in ecosystems where these invasive animals coexist.
C1 [Shiels, Aaron B.] USDA, APHIS, Natl Wildlife Res Ctr, Hawaii Field Stn, Hilo, HI 96721 USA.
[Flores, Caitlin A.] Univ Hawaii Manoa, Dept Microbiol, Honolulu, HI 96822 USA.
[Khamsing, Arthur] Dept Nat Resources & Environm Management, Honolulu, HI 96822 USA.
[Krushelnycky, Paul D.] Dept Plant & Environm Protect Sci, Honolulu, HI 96822 USA.
[Mosher, Stephen M.] USN, Naval Facil Engn Command Marianas, Santa Rita, GU 96915 USA.
[Drake, Donald R.] Univ Hawaii Manoa, Dept Bot, Honolulu, HI 96822 USA.
RP Shiels, AB (reprint author), USDA, APHIS, Natl Wildlife Res Ctr, Hawaii Field Stn, POB 10880, Hilo, HI 96721 USA.
EM ashiels@hawaii.edu
FU Oahu Army Natural Resources Program; Achievement Rewards for College
Scientists; Charles Lamoureux Plant Conservation Fellowship; Watson
Yoshimoto Wildlife Conservation Scholarship
FX Primary funding was provided by the Oahu Army Natural Resources Program;
additional funding to A.B.S. was from the Achievement Rewards for
College Scientists (Maybell Roth Scholarship in Conservation Biology and
Sarah Martin Award in Botany), the Charles Lamoureux Plant Conservation
Fellowship, and the Watson Yoshimoto Wildlife Conservation Scholarship.
Thanks to K. Kawelo, D. Peters, J. Rohrer, and L. Wilson for assistance
capturing rodents, J. Liebherr for the B. epicurus identification, and
C. Daehler, T. Hunt, and two anonymous reviewers for helpful comments on
an earlier draft of this manuscript. This research was approved by the
University of Hawaii Animal Use and Care Committee.
NR 64
TC 17
Z9 18
U1 13
U2 108
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 1387-3547
J9 BIOL INVASIONS
JI Biol. Invasions
PD MAY
PY 2013
VL 15
IS 5
BP 1037
EP 1048
DI 10.1007/s10530-012-0348-0
PG 12
WC Biodiversity Conservation; Ecology
SC Biodiversity & Conservation; Environmental Sciences & Ecology
GA 122XH
UT WOS:000317351400008
ER
PT J
AU Mah, ML
Armstrong, PR
Kim, SS
Carney, JR
Lightstone, JM
Talghader, JJ
AF Mah, Merlin L.
Armstrong, Philip R.
Kim, Sangho S.
Carney, Joel R.
Lightstone, James M.
Talghader, Joseph J.
TI Sensing the Thermal History of High-Explosive Detonations Using
Thermoluminescent Microparticles
SO IEEE SENSORS JOURNAL
LA English
DT Article
DE Lasers and electrooptics; luminescence; sensors; temperature sensors;
thermal sensors; thermoluminescence
ID LIF TLD-100; LUMINESCENCE; KINETICS; ORDER
AB Thermoluminescent LiF:Mg, Ti (TLD-100) microparticle sensors are demonstrated to record the thermal history of the environment around a high-explosive detonation. Microparticles are gamma-irradiated to fill their charge-carrier traps and then exposed to the detonation of 20 g of a plastic bonded HMX and Al explosive formulation at a test distance of approximately 22 cm from the center of the detonation. The thermal history of the microparticles is reconstructed by iteratively matching the degree of trap depopulation, derived from luminescence measurements, with that projected by theoretical simulations using appropriate models. Measurements and modeling indicate that the particles experienced a maximum temperature of 240 degrees C, then cooled to 1 degrees C above ambient temperature within 0.4 seconds. The resulting glow curve intensity is calculated to match the observed post-detonation signal to 3% averaged over the comparison values used for reconstruction.
C1 [Mah, Merlin L.; Armstrong, Philip R.; Kim, Sangho S.; Talghader, Joseph J.] Univ Minnesota, Minneapolis, MN 55455 USA.
[Carney, Joel R.; Lightstone, James M.] USN, Indian Head Div, Ctr Surface Warfare, Indian Head, MD 20640 USA.
RP Mah, ML (reprint author), Univ Minnesota, Minneapolis, MN 55455 USA.
EM merlin@umn.edu; armst230@umn.edu; kimxx676@umn.edu;
joel.carney@navy.mil; james.lightstone@navy.mil; joey@umn.edu
FU Defense Threat Reduction Agency [HDTRA1-10-0007]; NSF NNIN Program; NSF
MRFN Program
FX Manuscript received December 31, 2011; revised October 29, 2012;
accepted January 7, 2013. Date of publication January 24, 2013; date of
current version April 2, 2013. This work was supported in part by the
Defense Threat Reduction Agency, under Grant HDTRA1-10-0007 and the NSF
NNIN and MRFN Programs. This is an expanded paper from the IEEE SENSORS
2011 Conference. The associate editor coordinating the review of this
paper and approving it for publication was Prof. Istvan Barsony.
NR 11
TC 4
Z9 4
U1 1
U2 16
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1530-437X
J9 IEEE SENS J
JI IEEE Sens. J.
PD MAY
PY 2013
VL 13
IS 5
BP 1742
EP 1747
DI 10.1109/JSEN.2013.2242462
PG 6
WC Engineering, Electrical & Electronic; Instruments & Instrumentation;
Physics, Applied
SC Engineering; Instruments & Instrumentation; Physics
GA 124SR
UT WOS:000317486700013
ER
PT J
AU Pohlman, JW
Riedel, M
Bauer, JE
Canuel, EA
Paull, CK
Lapham, L
Grabowski, KS
Coffin, RB
Spence, GD
AF Pohlman, John W.
Riedel, Michael
Bauer, James E.
Canuel, Elizabeth A.
Paull, Charles K.
Lapham, Laura
Grabowski, Kenneth S.
Coffin, Richard B.
Spence, George D.
TI Anaerobic methane oxidation in low-organic content methane seep
sediments
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID GULF-OF-MEXICO; NORTHERN CASCADIA MARGIN; OREGON SUBDUCTION ZONE;
DEEP-SEA SEDIMENTS; SULFATE REDUCTION; HYDRATE RIDGE; VANCOUVER-ISLAND;
MARINE-SEDIMENTS; COLD SEEPS; GLACIMARINE SEDIMENTATION
AB Sulfate-dependent anaerobic oxidation of methane (AOM) is the key sedimentary microbial process limiting methane emissions from marine sediments and methane seeps. In this study, we investigate how the presence of low-organic content sediment influences the capacity and efficiency of AOM at Bullseye vent, a gas hydrate-bearing cold seep offshore of Vancouver Island, Canada. The upper 8 m of sediment contains <0.4 wt.% total organic carbon (OC) and primarily consists of glacially-derived material that was deposited 14,900-15,900 yrs BP during the retreat of the late Quaternary Cordilleran Ice Sheet. We hypothesize this aged and exceptionally low-OC content sedimentary OM is biologically refractory, thereby limiting degradation of non-methane OM by sulfate reduction and maximizing methane consumption by sulfate-dependent AOM. A radiocarbon-based dissolved inorganic carbon (DIC) isotope mass balance model demonstrates that respired DIC in sediment pore fluids is derived from a fossil carbon source that is devoid of C-14. A fossil origin for the DIC precludes remineralization of non-fossil OM present within the sulfate zone as a significant contributor to pore water DIC, suggesting that nearly all sulfate is available for anaerobic oxidation of fossil seep methane. Methane flux from the SMT to the sediment water interface in a diffusion-dominated flux region of Bullseye vent was, on average, 96% less than at an OM-rich seep in the Gulf of Mexico with a similar methane flux regime. Evidence for enhanced methane oxidation capacity within OM-poor sediments has implications for assessing how climate-sensitive reservoirs of sedimentary methane (e. g., gas hydrate) will respond to ocean warming, particularly along glacially-influenced mid and high latitude continental margins. Published by Elsevier Ltd.
C1 [Pohlman, John W.] US Geol Survey, Woods Hole Coastal & Marine Sci Ctr, Woods Hole, MA 02543 USA.
[Riedel, Michael] Geol Survey Canada Pacific, Sidney, BC, Canada.
[Bauer, James E.] Ohio State Univ, Aquat Ecol Lab, Dept Ecol Evolut & Organismal Biol, Columbus, OH 43210 USA.
[Canuel, Elizabeth A.] Virginia Inst Marine Sci, Coll William & Mary, Gloucester Point, VA 23062 USA.
[Paull, Charles K.] Monterey Bay Aquarium Res Inst, Moss Landing, CA USA.
[Lapham, Laura] Univ Maryland, Chesapeake Biol Lab, Ctr Environm Sci, Solomons, MD 20688 USA.
[Grabowski, Kenneth S.; Coffin, Richard B.] USN, Res Lab, Washington, DC 20375 USA.
[Riedel, Michael; Spence, George D.] Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC, Canada.
RP Pohlman, JW (reprint author), US Geol Survey, Woods Hole Coastal & Marine Sci Ctr, Woods Hole, MA 02543 USA.
EM jpohlman@usgs.gov; mriedel@nrcan.gc.ca; bauer.362@osu.edu;
ecanuel@vims.edu; paull@mbari.org; lapham@umces.edu;
ken.grabowski@nrl.navy.mil; rick.coffin@nrl.navy.mil; gspence@uvic.ca
RI Lapham, Laura/A-4035-2011;
OI Grabowski, Kenneth/0000-0003-0816-001X
FU US Geological Survey Gas Hydrates Project [DE-FE0002911, DE-NT0006147];
US Department of Energy's Methane Hydrates Research and Development
Program [DE-FE0002911, DE-NT0006147]
FX We express gratitude to the captain and the crew of the CCGV John P.
Tully and Bob MacDonald for shipboard and logistical support. Clark
Mitchell, Rebecca Plummer, David Knies and Brett Renfro provided
valuable analytical support. Partial support for this research was
provided by Interagency Agreements DE-FE0002911 and DE-NT0006147 between
the US Geological Survey Gas Hydrates Project and the US Department of
Energy's Methane Hydrates Research and Development Program. We thank
Bill Waite and Marcos Yoshinaga for constructive comments and insight
during the preparation of the manuscript and anonymous reviewers for
critical comments that improved the manuscript. Any use of trade names
is only for descriptive purposes and does not imply endorsement by the
US Government.
NR 100
TC 13
Z9 17
U1 6
U2 97
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
EI 1872-9533
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD MAY 1
PY 2013
VL 108
BP 184
EP 201
DI 10.1016/j.gca.2013.01.022
PG 18
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 121UD
UT WOS:000317269000011
ER
PT J
AU Fuentes, MMPB
Pike, DA
Dimatteo, A
Wallace, BP
AF Fuentes, Mariana M. P. B.
Pike, David A.
Dimatteo, Andrew
Wallace, Bryan P.
TI Resilience of marine turtle regional management units to climate change
SO GLOBAL CHANGE BIOLOGY
LA English
DT Article
DE climate change adaptation; conservation planning; expert opinion;
flatback turtle; green turtle; hawksbill turtle; leatherback turtle;
loggerhead turtle; olive ridley turtle; sea turtle
ID SEA-TURTLES; NESTING GROUNDS; EXTINCTION RISK; ECOLOGICAL RESPONSES;
EXPERT OPINION; BIODIVERSITY; IMPACTS; CONSERVATION; VULNERABILITY;
STRATEGIES
AB Enhancing species resilience to changing environmental conditions is often suggested as a climate change adaptation strategy. To effectively achieve this, it is necessary first to understand the factors that determine species resilience, and their relative importance in shaping the ability of species to adjust to the complexities of environmental change. This is an extremely challenging task because it requires comprehensive information on species traits. We explored the resilience of 58 marine turtle regional management units (RMUs) to climate change, encompassing all seven species of marine turtles worldwide. We used expert opinion from the IUCN-SSC Marine Turtle Specialist Group (n=33 respondents) to develop a Resilience Index, which considered qualitative characteristics of each RMU (relative population size, rookery vulnerability, and genetic diversity) and non climate-related threats (fisheries, take, coastal development, and pollution/pathogens). Our expert panel perceived rookery vulnerability (the likelihood of functional rookeries becoming extirpated) and non climate-related threats as having the greatest influence on resilience of RMUs to climate change. We identified the world's 13 least resilient marine turtle RMUs to climate change, which are distributed within all three major ocean basins and include six of the world's seven species of marine turtle. Our study provides the first look at inter- and intra-species variation in resilience to climate change and highlights the need to devise metrics that measure resilience directly. We suggest that this approach can be widely used to help prioritize future actions that increase species resilience to climate change.
C1 [Fuentes, Mariana M. P. B.] James Cook Univ, Ctr Excellence Coral Reef Studies, Australian Res Council, Townsville, Qld 4811, Australia.
[Pike, David A.] James Cook Univ, Sch Marine & Trop Biol, Townsville, Qld 4811, Australia.
[Pike, David A.] James Cook Univ, Ctr Trop Environm & Sustainabil Sci, Townsville, Qld 4811, Australia.
[Dimatteo, Andrew] USN, Facil Engn Command Atlantic, Norfolk, VA USA.
[Wallace, Bryan P.] Ocean Soc, Washington, DC 20010 USA.
[Wallace, Bryan P.] Duke Univ, Marine Lab, Nicholas Sch Environm, Beaufort, NC 28516 USA.
RP Fuentes, MMPB (reprint author), James Cook Univ, Ctr Excellence Coral Reef Studies, Australian Res Council, Townsville, Qld 4811, Australia.
EM mariana.fuentes@jcu.edu.au
RI James Cook University, TESS/B-8171-2012
FU Australian Research Council (ARC); Save Our Seas Foundation; ARC Centre
of Excellence for Coral Reef Studies
FX MMPBF acknowledges the support of the Australian Research Council (ARC),
Save Our Seas Foundation, and the ARC Centre of Excellence for Coral
Reef Studies. We thank the MTSG members who took the time to complete
our survey and for providing valuable feedback on our questions. Our
survey complied with the current laws of Australia and was conducted
under necessary permits (James Cook University, Human Ethics Approval
H4278).
NR 63
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Z9 12
U1 8
U2 170
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1354-1013
J9 GLOBAL CHANGE BIOL
JI Glob. Change Biol.
PD MAY
PY 2013
VL 19
IS 5
BP 1399
EP 1406
DI 10.1111/gcb.12138
PG 8
WC Biodiversity Conservation; Ecology; Environmental Sciences
SC Biodiversity & Conservation; Environmental Sciences & Ecology
GA 121ZN
UT WOS:000317284700006
PM 23505145
ER
PT J
AU Frigo, NJ
Bucholtz, F
McLaughlin, CV
AF Frigo, Nicholas J.
Bucholtz, Frank
McLaughlin, Colin V.
TI Polarization in Phase Modulated Optical Links: Jones- and Generalized
Stokes-Space Analysis
SO JOURNAL OF LIGHTWAVE TECHNOLOGY
LA English
DT Article
DE Berry's phase; Jones calculus; microwave photonics; optical fiber
communication; polarization; Stokes vector
ID GEOMETRICAL REPRESENTATION; SHIFT
AB Component birefringence can cause signal impairments in phase modulated optical links. At the transmitter, imperfect launch conditions couple phase modulation to unintended polarization modulation. At the receiver, polarization modulation creates spurious photocurrents due to birefringence in, and time delays between, interferometric paths. In this paper, we analyze such systems, and develop a formula for the photocurrent as a function of 11 system parameters. We utilize both the Jones description and our recent generalization of the Stokes description that includes optical phase, examine several special cases for phase modulated RF optical links, and evaluate some typical system performance issues.
C1 [Frigo, Nicholas J.] USN Acad, Dept Phys, Annapolis, MD 21402 USA.
[Bucholtz, Frank; McLaughlin, Colin V.] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
RP Frigo, NJ (reprint author), USN Acad, Dept Phys, Annapolis, MD 21402 USA.
EM frigo@usna.edu; frank.bucholtz@nrl.navy.mil
FU Office of Naval Research (ONR) [N0017312WR00370]
FX This work was supported in part by the Office of Naval Research (ONR)
under Grant N0017312WR00370.
NR 20
TC 8
Z9 8
U1 0
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0733-8724
J9 J LIGHTWAVE TECHNOL
JI J. Lightwave Technol.
PD MAY 1
PY 2013
VL 31
IS 9
BP 1503
EP 1511
DI 10.1109/JLT.2013.2251861
PG 9
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA 118DD
UT WOS:000317002100002
ER
PT J
AU Gross, ML
Hedman, TD
Son, SF
Jackson, TL
Beckstead, MW
AF Gross, Matthew L.
Hedman, Trevor D.
Son, Steven F.
Jackson, Thomas L.
Beckstead, Merrill W.
TI Coupling micro and meso-scale combustion models of AP/HTPB propellants
SO COMBUSTION AND FLAME
LA English
DT Article
DE Ammonium perchlorate; Hydroxyl-terminated polybutadiene; Solid
propellants; Combustion modeling; Multi-scale coupling
ID COMPOSITE PROPELLANTS; AMMONIUM-PERCHLORATE
AB Combustion simulations at the micro and meso-scales are coupled to give a more theoretically based and accurate description of AP (ammonium perchlorate)/HTPB (hydroxyl-terminated polybutadiene) composite propellant combustion. One and two-dimensional micro-scale combustion models of AP and AP/HTPB, which include detailed kinetics and species transport, are utilized to define semi-global kinetics for a meso-scale propellant combustion model capable of representing the complex morphology of an actual propellant. The AP/HTPB flame structure predicted with the micro-scale models is separated into four flames. Each flame is represented with a single reaction, thus a new four-step kinetic mechanism is implemented into the meso-scale model. Physical and kinetic parameters are determined with the micro-scale models. The meso-scale model is calibrated and validated with the micro-scale models to ensure the correct flame structure, as a function of pressure and AP particle sizes, is recreated with the four-step mechanism. The primary focus of this work is to outline the methodology used to couple the two numerical scales. Results of the meso-scale model are compared with the previous empirically-parameterized meso-scale model results and experimental data. Predictions are within 10% of experimental values for a range of AP/HTPB propellants. Published by Elsevier Inc. on behalf of The Combustion Institute.
C1 [Gross, Matthew L.] USN, Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA.
[Hedman, Trevor D.; Son, Steven F.] Purdue Univ, Maurice J Zucrow Labs, W Lafayette, IN 47906 USA.
[Jackson, Thomas L.] Univ Illinois, Urbana, IL 61801 USA.
[Beckstead, Merrill W.] Brigham Young Univ, Provo, UT 84602 USA.
RP Gross, ML (reprint author), USN, Adm Circle, Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA.
EM matthew.gross1@navy.mil
FU NAVAIR ILIR program; N-STAR program
FX This work was sponsored by the NAVAIR ILIR program, managed at ONR by
the N-STAR program. Additionally, the authors wish to thank the SMART
Scholarship.
NR 23
TC 8
Z9 9
U1 0
U2 38
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0010-2180
J9 COMBUST FLAME
JI Combust. Flame
PD MAY
PY 2013
VL 160
IS 5
BP 982
EP 992
DI 10.1016/j.combustflame.2013.01.016
PG 11
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
Engineering, Chemical; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA 109MM
UT WOS:000316372700012
ER
PT J
AU Rittersdorf, IM
Antonsen, TM
Chernin, D
Lau, YY
AF Rittersdorf, Ian M.
Antonsen, Thomas M., Jr.
Chernin, David
Lau, Y. Y.
TI Effects of Random Circuit Fabrication Errors on the Mean and Standard
Deviation of Small Signal Gain and Phase of a Traveling Wave Tube
SO IEEE JOURNAL OF THE ELECTRON DEVICES SOCIETY
LA English
DT Article
DE Gain variation; phase variation; traveling wave tube; fabrication
tolerance
AB Random fabrication errors may have detrimental effects on the performance of traveling wave tubes (TWTs) of all types, especially in the sub-millimeter wavelength regime and beyond. Previous studies calculated the standard deviation of the small signal gain and the output phase of a TWT in the presence of small random, axially varying perturbations in the circuit phase velocity, assuming synchronous interaction and zero AC space charge effects. This paper relaxes the latter assumptions. In addition, we calculate the ensemble-average gain and the ensemble-average phase that result from random axial variations in the circuit phase velocity, using two analytic approaches. One is a perturbative approach including all three modes of the coupled beam-circuit equations. The other treats the evolution of only the dominant (exponentially growing) mode. The analytical results on the expected gain and phase compare favorably with results from numerical integrations of the governing equation in the absence of space charge, but are found to deviate from the numerical integrations with the inclusion of space charge effects. The effects of small pitch errors in a 210 GHz folded waveguide TWT are evaluated in an example.
C1 [Rittersdorf, Ian M.] Univ Michigan, Ann Arbor, MI 48108 USA.
[Antonsen, Thomas M., Jr.] Univ Maryland, College Pk, MD 20742 USA.
[Chernin, David] Sci Applicat Int Corp, Mclean, VA 22102 USA.
[Lau, Y. Y.] Univ Michigan, Ann Arbor, MI 48108 USA.
[Lau, Y. Y.] Naval Res Lab, Washington, DC 20375 USA.
RP Rittersdorf, IM (reprint author), Univ Michigan, Ann Arbor, MI 48108 USA.
EM ianrit@umich.edu; antonsen@glue.umd.edu; david.chernin@saic.com;
yylau@umich.edu
RI Antonsen, Thomas/D-8791-2017
OI Antonsen, Thomas/0000-0002-2362-2430
FU Air Force Office of Scientific Research; Office of Naval Research; L-3
Communications Electron Device Division
FX This work was supported in part by the Air Force Office of Scientific
Research, the Office of Naval Research, and the L-3 Communications
Electron Device Division. The review of this paper was arranged by
Editor M. Anwar.
NR 10
TC 2
Z9 2
U1 0
U2 3
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2168-6734
J9 IEEE J ELECTRON DEVI
JI IEEE J. Electron Devices Soc.
PD MAY
PY 2013
VL 1
IS 5
BP 117
EP 128
DI 10.1109/JEDS.2013.2273794
PG 12
WC Engineering, Electrical & Electronic
SC Engineering
GA V41ZV
UT WOS:000209585000002
ER
PT J
AU Lin, RQ
Smith, T
AF Lin, Ray-Qing
Smith, Tim
TI Numerical Modeling of a Planing Hull Maneuvering in a Regular Wave, Part
1: Dynamic Instability
SO JOURNAL OF SHIP PRODUCTION AND DESIGN
LA English
DT Article
DE planing hull; maneuvering; incident waves; dynamic instability;
numerical modeling
ID SHIP MOTION; CONSISTENT; STABILITY; CRAFT
AB The surf rescue boat (SRB) of the U.S. Coast Guard is a class of high-speed planing boats. This 9-meter craft is capable of operating at speeds up to Froude number 1.7. However, when it begins to maneuver in incident waves near its maximum speed, dynamic instability occurs immediately. In this instance, the craft trims and rolls to a large heel angle with "plow-In," even with small-amplitude incident waves and small course changes. In this study, a fully nonlinear ship motion model named the Digital Self-consistent Ship Experimental Laboratory (DiSSEL) is used as a numerical tool to understand the physics that cause the dynamic instabilities. DiSSEL showed that when SRB reached Froude number 1.698, acceleration resulting from heading change would cause a dynamic force and moment imbalance, resulting in heel and pitch motion instabilities. DiSSEL also showed that if the heading is fixed, and other conditions remain the same, the instability did not occur. Unfortunately, there is no detailed record of the data or numerical simulation of the ship motions in the stable and unstable regions, except for the description of the ship motions by Codega and Lewis (1987). The simulations by DiSSEL agree well with this description.
C1 [Lin, Ray-Qing; Smith, Tim] Naval Surface Warfare Ctr, Carderock Div NSWCCD, Hydromech Dept, West Bethesda, MD 20817 USA.
RP Lin, RQ (reprint author), Naval Surface Warfare Ctr, Carderock Div NSWCCD, Hydromech Dept, West Bethesda, MD 20817 USA.
FU David Taylor Model Basin, Carderock Division, Naval Surface Warfare
Center, Independent Laboratory In-House Research (ILIR)
FX This work and the development of DiSSEL Ship Motion Model are supported
by David Taylor Model Basin, Carderock Division, Naval Surface Warfare
Center, Independent Laboratory In-House Research (ILIR) Program
administered by Dr. Barkyoumb.
NR 15
TC 0
Z9 0
U1 0
U2 1
PU SOC NAVAL ARCHITECTS MARINE ENGINEERS
PI JERSEY CITY
PA 601 PAVONIA AVENUE, JERSEY CITY, NJ 07306 USA
SN 2158-2866
EI 2158-2874
J9 J SHIP PROD DES
JI J. Ship Prod. Des.
PD MAY
PY 2013
VL 29
IS 2
BP 76
EP 83
DI 10.5957/JSPD.29.2.120036
PG 8
WC Engineering, Marine
SC Engineering
GA AW0CR
UT WOS:000345958400004
ER
PT J
AU Baturina, OA
Gould, BD
Northrup, PA
Swider-Lyons, KE
AF Baturina, Olga A.
Gould, Benjamin D.
Northrup, Paul A.
Swider-Lyons, Karen E.
TI SO2 adsorption products on Pt nanoparticles as a function of electrode
potential and oxidative properties of carrier gas: In situ sulfur K-edge
XANES approach
SO CATALYSIS TODAY
LA English
DT Article; Proceedings Paper
CT Conference on Oprando IV - Recent Developments and Future Perspectives
in Spectroscopy of Working Catalysts
CY APR 29-MAY 03, 2012
CL Brookhaven Natl Lab, New York, NY
SP ExxonMobil, Bruker, Shell, BaySpec, FEI, UOP, PerkinElmer, Elsevier, Catalysis Today, Avantes, Harrick, Hiden Analyt, Horiba, Princeton Instruments, VAT, VG Scienta, BNL, Photon Sci Directorate
HO Brookhaven Natl Lab
DE Carbon-supported platinum catalyst; Proton exchange membrane fuel cells;
SO2 adsorption on platinum; XANES; Impurities; ORR
ID OXYGEN REDUCTION REACTION; X-RAY-ABSORPTION; FUEL-CELL; PLATINUM;
DIOXIDE; ELECTROCATALYSTS; SPECTROSCOPY; KINETICS; CATHODE
AB In situ sulfur K-edge X-ray absorption near-edge structure spectroscopy is used to determine the nature of adsorbed SO2 species from a SO2/O-2 gas mixture on carbon-supported Pt nanoparticles (Pt/VC). SO2 was adsorbed onto electrodes held at 0.1, 0.5, 0.7 and 0.9 V vs. a reversible hydrogen electrode while flowing 1000 ppm SO2 in O-2 through the working electrode (WE) compartment. SO2 adsorption products from SO2/O-2 are compared to those from SO2/N-2 gas mixtures [Baturina, et al., Langmuir, 27 (2011) 14930]. The SO2 adsorption products are found to be essentially the same at electrodes held at 0.5, 0.7 and 0.9 V. A major difference is observed at 0.1 V, where (bi) sulfate ions are generated in the presence of SO2 in O2 likely due to a reaction between SO2 and H2O2 formed as a byproduct of the oxygen reduction reaction in the hydrogen adsorption region.
(Bi) sulfate generation on Pt/VC catalysts held at 0.1 V suggests that SO2 may act as a peroxide radical scavenger at the PEM fuel cell cathode. Although impurities such as SO2 and H2S usually promote hydrogen peroxide generation at the fuel cell cathodes, their detrimental effect may be diminished by their reaction with H2O2. Published by Elsevier B.V.
C1 [Baturina, Olga A.; Gould, Benjamin D.; Swider-Lyons, Karen E.] USN, Div Chem, Res Lab, Washington, DC 20375 USA.
[Northrup, Paul A.] SUNY Stony Brook, Stony Brook, NY 11794 USA.
RP Baturina, OA (reprint author), USN, Div Chem, Res Lab, Washington, DC 20375 USA.
EM olga.baturina@nrl.navy.mil
NR 20
TC 2
Z9 2
U1 3
U2 41
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5861
J9 CATAL TODAY
JI Catal. Today
PD APR 30
PY 2013
VL 205
BP 106
EP 110
DI 10.1016/j.cattod.2012.08.024
PG 5
WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical
SC Chemistry; Engineering
GA 115DB
UT WOS:000316791700015
ER
PT J
AU Kim, H
Osofsky, M
Prokes, SM
Glembocki, OJ
Pique, A
AF Kim, H.
Osofsky, M.
Prokes, S. M.
Glembocki, O. J.
Pique, A.
TI Optimization of Al-doped ZnO films for low loss plasmonic materials at
telecommunication wavelengths
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID OXIDE THIN-FILMS; PULSED-LASER DEPOSITION; LIGHT-EMITTING DEVICES;
ATOMIC-LAYER DEPOSITION; NEGATIVE REFRACTION; ALUMINUM; METAMATERIALS
AB Al-doped ZnO (AZO) thin films were deposited on glass substrates by pulsed laser deposition for low loss plasmonic applications in the near IR (NIR). The effect of oxygen content on the electrical/optical properties of AZO films in this region was investigated. Films deposited at optimized conditions exhibit a carrier concentration of 1.2 x 10(21) cm(-3), carrier mobility of 18 cm(2) V-1 s(-1), and zero-cross-over of the real permittivity below 1.5 mu m. Optical losses in these AZO films are similar to 5 times smaller than conventional Ag films in the NIR. These results make AZO a promising low-loss alternative material to conventional metals for plasmonic devices operating at telecommunication wavelengths.
C1 [Kim, H.; Osofsky, M.; Prokes, S. M.; Glembocki, O. J.; Pique, A.] USN, Res Lab, Washington, DC 20375 USA.
RP Kim, H (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM heungsoo.kim@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 27
TC 30
Z9 31
U1 2
U2 57
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD APR 29
PY 2013
VL 102
IS 17
AR 171103
DI 10.1063/1.4802901
PG 4
WC Physics, Applied
SC Physics
GA 139AG
UT WOS:000318553000003
ER
PT J
AU Nagareddy, VK
Chan, HK
Hernandez, SC
Wheeler, VD
Myers-Ward, RL
Nyakiti, LO
Eddy, CR
Walton, SG
Goss, JP
Wright, NG
Gaskill, DK
Horsfall, AB
AF Nagareddy, V. K.
Chan, H. K.
Hernandez, S. C.
Wheeler, V. D.
Myers-Ward, R. L.
Nyakiti, L. O.
Eddy, C. R., Jr.
Walton, S. G.
Goss, J. P.
Wright, N. G.
Gaskill, D. K.
Horsfall, A. B.
TI Detection of polar chemical vapors using epitaxial graphene grown on SiC
(0001)
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID SENSORS; MOBILITY; OXIDE
AB Epitaxial graphene grown on SiC (0001) showed significant changes in electrical resistance upon exposure to polar protic and polar aprotic vapors in the ambient atmosphere. The dipole moment of these chemicals was found to have a strong impact on the magnitude of the sensor response, which increases with increasing dipole moment. Using the combination of low-frequency noise and Hall measurements, we demonstrate that the chemical sensing mechanism in epitaxial graphene is based on fluctuations of the charge carrier density induced by vapor molecules adsorbed on the surface of the graphene. (C) 2013 AIP Publishing LLC.
C1 [Nagareddy, V. K.; Chan, H. K.; Goss, J. P.; Wright, N. G.; Horsfall, A. B.] Newcastle Univ, Sch Elect & Elect Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England.
[Hernandez, S. C.; Wheeler, V. D.; Myers-Ward, R. L.; Nyakiti, L. O.; Eddy, C. R., Jr.; Walton, S. G.; Gaskill, D. K.] USN, Res Lab, Washington, DC 20375 USA.
RP Nagareddy, VK (reprint author), Newcastle Univ, Sch Elect & Elect Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England.
RI Hernandez, Sandra/C-6724-2013; Wright, Nick/O-1092-2013; Nagareddy,
Karthik/F-3380-2014;
OI Nagareddy, Karthik/0000-0002-8765-3834; Wright,
Nicholas/0000-0003-3169-4159
FU BAE Systems through DHPA scheme; NRC; ASEE; Office of Naval Research;
EPSRC, UK
FX V.K.N. and H. K. C. acknowledge support from BAE Systems through DHPA
scheme. S. C. H. and L.O.N. are grateful for postdoctoral support from
NRC and ASEE, respectively. Portions of this work were supported by the
Office of Naval Research and the EPSRC, UK.
NR 31
TC 4
Z9 4
U1 1
U2 51
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD APR 29
PY 2013
VL 102
IS 17
AR 173103
DI 10.1063/1.4803511
PG 5
WC Physics, Applied
SC Physics
GA 139AG
UT WOS:000318553000051
ER
PT J
AU Shen, Y
Gao, JQ
Wang, YJ
Finkel, P
Li, JF
Viehland, D
AF Shen, Ying
Gao, Junqi
Wang, Yaojin
Finkel, Peter
Li, Jiefang
Viehland, D.
TI Piezomagnetic strain-dependent non-linear magnetoelectric response
enhancement by flux concentration effect
SO APPLIED PHYSICS LETTERS
LA English
DT Article
AB The non-linear magnetoelectric (ME) effect of Metglas/Pb(Mg1/3Nb2/3)O-3-PbTiO3 heterostructures has been studied. Such effect holds promise for modulation mode ME sensor applications that require no dc bias. The non-linear ME coefficient was found to be highly dependent on the derivative of the piezomagnetic strain coefficient, which could be increased by increasing the Metglas length due to magnetic flux concentration. The non-linear ME coefficient was equal to 9.5V/(cm - Oe(2)) at H-dc = -1 Oe and 7.5V/ (cm - Oe(2)) at H-dc = 0Oe for a structure with 10 cm long Metglas foils. (C) 2013 AIP Publishing LLC.
C1 [Shen, Ying; Gao, Junqi; Wang, Yaojin; Li, Jiefang; Viehland, D.] Virginia Tech, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA.
[Finkel, Peter] USN, Undersea Warfare Ctr, Newport, RI 02840 USA.
RP Shen, Y (reprint author), Virginia Tech, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA.
RI Gao, Junqi/F-2989-2012; Wang, Yaojin/F-3748-2012
OI Wang, Yaojin/0000-0003-2561-1855
FU Office of Naval Research
FX The authors thank the Office of Naval Research for funding.
NR 15
TC 9
Z9 9
U1 2
U2 54
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
EI 1077-3118
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD APR 29
PY 2013
VL 102
IS 17
AR 172904
DI 10.1063/1.4803660
PG 4
WC Physics, Applied
SC Physics
GA 139AG
UT WOS:000318553000044
ER
PT J
AU Bordikar, MR
Scales, WA
Samimi, AR
Bernhardt, PA
Brizcinski, S
McCarrick, MJ
AF Bordikar, M. R.
Scales, W. A.
Samimi, A. R.
Bernhardt, P. A.
Brizcinski, S.
McCarrick, M. J.
TI First observations of minority ion (H+) structuring in stimulated
radiation during second electron gyroharmonic heating experiments
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE Ionosphere; Active experiments
ID ELECTROMAGNETIC EMISSION; IONOSPHERE; FREQUENCY; PLASMA; HYBRID; WAVES
AB This work presents the first observations of unique narrowband emissions ordered near the hydrogen ion (H+) gyrofrequency (fcH) in the stimulated electromagnetic emission spectrum when the transmitter is tuned near the second electron gyroharmonic frequency (2fce) during ionospheric modification experiments. The frequency structuring of these newly discovered emission lines is quite unexpected since H+ is known to be a minor constituent in the interaction region which is near 160km altitude. The spectral lines are typically shifted from the pump wave frequency by harmonics of a frequency about 10% less than fcH (approximate to 800Hz) and have a bandwidth of less than 50Hz which is near the O+ gyrofrequency fcO. A theory is proposed to explain these emissions in terms of a parametric decay instability in a multi-ion species plasma due to possible proton precipitation associated with the disturbed conditions during the heating experiment. The observations can be explained by including several percent H+ ions into the background plasma. The implications are new possibilities for characterizing proton precipitation events during ionospheric heating experiments.
C1 [Bordikar, M. R.; Scales, W. A.; Samimi, A. R.] Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
[Bernhardt, P. A.; Brizcinski, S.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[McCarrick, M. J.] Marsh Creek LLC, Gakona, AK USA.
RP Bordikar, MR (reprint author), Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
EM maitrayee@vt.edu
FU National Science Foundation
FX This work was supported by National Science Foundation.
NR 19
TC 8
Z9 8
U1 0
U2 4
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD APR 28
PY 2013
VL 40
IS 8
BP 1479
EP 1483
DI 10.1002/grl.50327
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 148BR
UT WOS:000319217800005
ER
PT J
AU Lieberman, RS
Riggin, DM
Siskind, DE
AF Lieberman, R. S.
Riggin, D. M.
Siskind, D. E.
TI Stationary waves in the wintertime mesosphere: Evidence for gravity wave
filtering by stratospheric planetary waves
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID SATELLITE; VORTEX; WINDS; MLS
AB Quasi-stationary planetary-scale waves in the wintertime mesosphere and lower thermosphere (MLT) are thought to be forced in part by drag imparted by gravity waves that have been modulated by underlying stratospheric waves. Although this mechanism has been demonstrated numerically, there have been very few observational studies that examine wave driving as a source of planetary waves in the MLT. This study uses data from EOS Aura and TIMED between 2005 and 2011 to examine the momentum budget of MLT wintertime planetary waves. Monthly averages for January indicate that the dynamics of zonal wave number 1 are determined from a three-way balance among the Coriolis acceleration, the pressure gradient force, and a momentum residual term that reflects wave drag. The MLT circulations in January 2005, 2006, 2009, and 2011 are qualitatively consistent with a simple model of wave forcing by drag from gravity waves that have been modulated by stratospheric planetary waves. MLT winds during these years are also consistent with analyses from a high-altitude operational prediction model that includes parameterized nonorographic gravity wave drag. The importance of wave drag for the MLT momentum budget suggests that the gradient wind approximation is inadequate for deriving planetary-scale winds from global temperature measurements. Our results underscore the need for direct global wind measurements in the MLT.
C1 [Lieberman, R. S.; Riggin, D. M.] NW Res Associates Inc, Boulder, CO USA.
[Lieberman, R. S.; Riggin, D. M.] GATS Inc, Boulder, CO 80301 USA.
[Siskind, D. E.] USN, Div Space Sci, Res Lab, Washington, DC USA.
RP Lieberman, RS (reprint author), GATS Inc, 3360 Mitchell Ln, Boulder, CO 80301 USA.
EM r.s.lieberman@gats-inc.com
FU NASA contract [NNH09CF47C]; NASA Heliophysics Theory grant
FX The authors wish to thank the SABER and MLS science and data processing
teams for their careful study, validation, and processing of these data
sets. We thank W. Skinner and the TIDI team at the University of
Michigan for their processing and dissemination of TIDI wind products.
We would like to express our appreciation to our Associate Editor and
our anonymous referees for their comprehensive reviews. This research
was supported by NASA contract NNH09CF47C to NWRA and a NASA
Heliophysics Theory grant to NRL.
NR 45
TC 7
Z9 7
U1 1
U2 7
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD APR 27
PY 2013
VL 118
IS 8
BP 3139
EP 3149
DI 10.1002/jgrd.50319
PG 11
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 155JQ
UT WOS:000319744200008
ER
PT J
AU Wegner, KD
Lanh, PT
Jennings, T
Oh, E
Jain, V
Fairclough, SM
Smith, JM
Giovanelli, E
Lequeux, N
Pons, T
Hildebrandt, N
AF Wegner, K. David
Phung Thi Lanh
Jennings, Travis
Oh, Eunkeu
Jain, Vaibhav
Fairclough, Simon M.
Smith, Jason M.
Giovanelli, Emerson
Lequeux, Nicolas
Pons, Thomas
Hildebrandt, Niko
TI Influence of Luminescence Quantum Yield, Surface Coating, and
Functionalization of Quantum Dots on the Sensitivity of Time-Resolved
FRET Bioassays
SO ACS APPLIED MATERIALS & INTERFACES
LA English
DT Article
DE FRET; quantum dot; biosensor; diagnostics; terbium; multiplexing;
spectroscopy; immunoassay; biotin; streptavidin
ID RESONANCE ENERGY-TRANSFER; SEMICONDUCTOR NANOCRYSTALS; DIAGNOSTICS;
MULTIDENTATE; BIOANALYSIS; BIOSENSORS; ACCEPTORS; LIGANDS; LABELS
AB In clinical diagnostics, homogeneous time-resolved (TR) FRET immunoassays are used for fast and highly sensitive detection of biomarkers in serum samples. The most common immunoassay format is based on europium chelate or cryptate donors and allophycocyanin acceptors. Replacing europium donors with terbium complexes and the acceptors with QDs offers large photophysical advantages for multiplexed diagnostics, because the Tb-complex can be used as FRET donor for QD acceptors of different colors. Water-soluble and biocompatible QDs are commercially available or can be synthesized in the laboratory using many available recipes from the literature. Apart from the semiconductor material composition, an important aspect of choosing the right QD for TR-FRET assays is the thickness of the QD coating, which will influence the photophysical properties and long-term stability as well as the donor acceptor distance and FRET efficiency. Here we present a detailed time-resolved spectroscopic study of three different QDs with an emission maximum around 605 nm for their application as FRET acceptors (using a common Tb donor) in TR-bioassays: (i) Invitrogen/Life Technologies Qdot605, (ii) eBioscience eFluorNC605 and iii) ter-polymer stabilized CdSe/CdS/ZnS QDs synthesized in our laboratories. All FRET systems are very stable and possess large Forster distances (7.4-9.1 nm), high FRET efficiencies (0.63- 0.80) and low detection limits (0.06-2.0 pM) within the FRET-bioassays. Shapes, sizes and the biotin/QD ratio of the biocompatible QDs could be determined directly in the solution phase bioassays at subnanomolar concentrations. Both commercial amphiphilic polymer/lipid encapsulated QDs and self-made ligand-exchanged QDs provide extremely low detection limits for highly sensitive TR-FRET bioassays.
C1 [Wegner, K. David; Phung Thi Lanh; Hildebrandt, Niko] Univ Paris 11, Inst Elect Fondamentale, F-91405 Orsay, France.
[Jennings, Travis] eBioscience Inc, San Diego, CA 92121 USA.
[Oh, Eunkeu; Jain, Vaibhav] USN, Opt Sci Div, Res Lab, Washington, DC 20375 USA.
[Oh, Eunkeu] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
[Fairclough, Simon M.; Smith, Jason M.] Univ Oxford, Dept Mat, Oxford OX1 3PH, Oxon, England.
[Giovanelli, Emerson; Lequeux, Nicolas; Pons, Thomas] ESPCI CNRS UPMC UMR8213, Lab Phys & Etude Mat, F-75005 Paris, France.
RP Hildebrandt, N (reprint author), Univ Paris 11, Inst Elect Fondamentale, F-91405 Orsay, France.
EM niko.hildebrandt@u-psud.fr
RI Smith, Jason/I-5313-2012; Pons, Thomas/A-8667-2008
OI Smith, Jason/0000-0002-4572-0867; Pons, Thomas/0000-0001-8800-4302
FU Ministere de l'enseignement superieure et de la recherche France;
European Commission
FX The authors thank the Ministere de l'enseignement superieure et de la
recherche France (Investissement d'avenir project NanoCTC) and the
European Commission (FP7 project NANOGNOSTICS) for financial support.
NR 33
TC 32
Z9 33
U1 10
U2 139
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1944-8244
J9 ACS APPL MATER INTER
JI ACS Appl. Mater. Interfaces
PD APR 24
PY 2013
VL 5
IS 8
BP 2881
EP 2892
DI 10.1021/am3030728
PG 12
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 134JA
UT WOS:000318205000010
PM 23496235
ER
PT J
AU Nichols, JM
Judd, KP
Olson, CC
Waterman, JR
Nichols, JD
AF Nichols, Jonathan M.
Judd, Kyle P.
Olson, Colin C.
Waterman, James R.
Nichols, James D.
TI Estimating detection and identification probabilities in maritime target
acquisition
SO APPLIED OPTICS
LA English
DT Article
ID PERFORMANCE
AB This work describes several approaches to the estimation of target detection and identification probabilities as a function of target range. A Bayesian approach to estimation is adopted, whereby the posterior probability distributions associated with these probabilities are analytically derived. The parameter posteriors are then used to develop credible intervals quantifying the degree of uncertainty in the parameter estimates. In our first approach we simply show how these credible intervals evolve as a function of range. A second approach, also following the Bayesian philosophy, attempts to directly estimate the parameterized performance curves. This second approach makes efficient use of the available data and yields a distribution of probability versus range curves. Finally, we demonstrate both approaches using experimental data collected from wide field-of-view imagers focused on maritime targets. (C) 2013 Optical Society of America
C1 [Nichols, Jonathan M.; Judd, Kyle P.; Waterman, James R.] USN, Res Lab, Washington, DC 20375 USA.
[Olson, Colin C.] Sotera Def Solut, Crofton, MD 21114 USA.
[Nichols, James D.] US Geol Survey, Laurel, MD 20708 USA.
RP Nichols, JM (reprint author), USN, Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
EM jonathan.nichols@nrl.navy.mil
FU Office of Naval Research
FX The authors acknowledge the Office of Naval Research for supporting this
work under the Remote Weapons Visual Awareness program. We also
acknowledge the Office of Naval Research "Program 38" for lending
valuable resources to this effort.
NR 13
TC 4
Z9 4
U1 2
U2 6
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 APR 20
PY 2013
VL 52
IS 12
BP 2531
EP 2545
DI 10.1364/AO.52.002531
PG 15
WC Optics
SC Optics
GA 130NB
UT WOS:000317923700003
PM 23669659
ER
PT J
AU Brittain, SD
Najita, JR
Carr, JS
Liskowsky, J
Troutman, MR
Doppmann, GW
AF Brittain, Sean D.
Najita, Joan R.
Carr, John S.
Liskowsky, Joseph
Troutman, Matthew R.
Doppmann, Greg W.
TI HIGH-RESOLUTION NEAR-INFRARED SPECTROSCOPY OF HD 100546. II. ANALYSIS OF
VARIABLE ROVIBRATIONAL CO EMISSION LINES
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE circumstellar matter; line: profiles; protoplanetary disks; stars:
individual (HD 100546)
ID HERBIG-AE/BE STARS; T-TAURI STARS; WEAKLY MAGNETIZED DISKS; LOCAL SHEAR
INSTABILITY; MAIN-SEQUENCE STARS; PROTOPLANETARY DISKS; ACCRETION DISKS;
MOLECULAR GAS; CORONAGRAPHIC OBSERVATIONS; FUNDAMENTAL EMISSION
AB We present observations of rovibrational CO in HD 100546 from four epochs spanning 2003 January through 2010 December. We show that the equivalent widths of the CO lines vary during this time period with the v = 1-0 CO lines brightening more than the UV fluoresced lines from the higher vibrational states. While the spectroastrometric signal of the hot band lines remains constant during this period, the spectroastrometric signal of the v = 1-0 lines varies substantially. At all epochs, the spectroastrometric signals of the UV fluoresced lines are consistent with the signal one would expect from gas in an axisymmetric disk. In 2003, the spectroastrometric signal of the v = 1-0 P26 line was symmetric and consistent with emission from an axisymmetric disk. However, in 2006 there was no spatial offset of the signal detected on the red side of the profile, and in 2010 the spectroastrometric offset was yet more strongly reduced toward zero velocity. A model is presented that can explain the evolution of the equivalent width of the v = 1-0 P26 line and its spectroastrometric signal by adding to the system a compact source of CO emission that orbits the star near the inner edge of the disk. We hypothesize that such emission may arise from a circumplanetary disk orbiting a gas giant planet near the inner edge of the circumstellar disk. We discuss how this idea can be tested observationally and be distinguished from an alternative interpretation of random fluctuations in the disk emission.
C1 [Brittain, Sean D.; Liskowsky, Joseph] Clemson Univ, Dept Phys & Astron, Kinard Lab 118, Clemson, SC 29634 USA.
[Najita, Joan R.] Natl Opt Astron Observ, Tucson, AZ 85719 USA.
[Carr, John S.] USN, Res Lab, Washington, DC 20375 USA.
[Troutman, Matthew R.] Univ Missouri, Dept Phys & Astron, St Louis, MO 63121 USA.
[Doppmann, Greg W.] WM Keck Observ, Kamuela, HI 96743 USA.
RP Brittain, SD (reprint author), Clemson Univ, Dept Phys & Astron, Kinard Lab 118, Clemson, SC 29634 USA.
EM sbritt@clemson.edu; najita@noao.edu; carr@nrl.navy.mil;
jliskow@clemson.edu; troutmanm@umsl.edu; gdoppmann@keck.hawaii.edu
FU National Science Foundation [AST-0708899, AST-0954811]; NASA Origins of
Solar Systems [NNX08AH90G]; NASA through the Michelson Fellowship
Program; [GS-]; [GS-2005B-C-2]; [GS-2006A-C-17]; [GS-2008B-Q-22];
[GS-2010B-C-3]
FX Based on observations obtained at the Gemini Observatory, which is
operated by the Association of Universities for Research in Astronomy,
Inc., under a cooperative agreement with the NSF on behalf of the Gemini
partnership: the National Science Foundation (United States), the
Science and Technology Facilities Council (United Kingdom), the National
Research Council (Canada), CONICYT (Chile), the Australian Research
Council (Australia), Ministrio da Cincia e Tecnologia (Brazil), and
SECYT (Argentina). The Phoenix infrared spectrograph was developed and
is operated by the National Optical Astronomy Observatory. The Phoenix
spectra were obtained as a part of programs GS-, GS-2005B-C-2,
GS-2006A-C-17, GS-2008B-Q-22, and GS-2010B-C-3. S.D.B. acknowledges
support for this work from the National Science Foundation under grant
Nos. AST-0708899 and AST-0954811 and NASA Origins of Solar Systems under
grant No. NNX08AH90G. Basic research in infrared astronomy at the Naval
Research Laboratory is supported by 6.1 base funding. M.R.T acknowledges
support for this work performed under contract with the Jet Propulsion
Laboratory (JPL) funded by NASA through the Michelson Fellowship
Program. JPL is managed for NASA by the California Institute of
Technology.
NR 83
TC 19
Z9 19
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD APR 20
PY 2013
VL 767
IS 2
AR 159
DI 10.1088/0004-637X/767/2/159
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 122VR
UT WOS:000317346800062
ER
PT J
AU Pomfret, MB
Steinhurst, DA
Owrutsky, JC
AF Pomfret, Michael B.
Steinhurst, Daniel A.
Owrutsky, Jeffrey C.
TI Identification of a Methane Oxidation Intermediate on Solid Oxide Fuel
Cell Anode Surfaces with Fourier Transform Infrared Emission
SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS
LA English
DT Article
ID CARBON-MONOXIDE; SOFC; CO2; PERFORMANCE; ADSORPTION; SPECTROSCOPY;
DEGRADATION; DEPOSITION; RESOLUTION; HREELS
AB Fuel interactions on solid oxide fuel cell (SOFC) anodes are studied with in situ Fourier transform infrared emission spectroscopy (FTIRES). SOFCs are operated at 800 degrees C with CH4 as a representative hydrocarbon fuel. IR signatures of gas-phase oxidation products, CO2(g) and CO(g), are observed while cells are under load. A broad feature at 2295 cm(-1) is assigned to CO2 adsorbed on Ni as a CH4 oxidation intermediate during cell operation and while carbon deposits are electrochemically oxidized after CH4 operation. Electrochemical control provides confirmation of the assignment of adsorbed CO2. FTIRES has been demonstrated as a viable technique for the identification of fuel oxidation intermediates and products in working SOFCs, allowing for the elucidation of the mechanisms of fuel chemistry.
C1 [Pomfret, Michael B.; Owrutsky, Jeffrey C.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
[Steinhurst, Daniel A.] Nova Res Inc, Alexandria, VA 22308 USA.
RP Pomfret, MB (reprint author), USN, Res Lab, Div Chem, 4555 Overlook Ave Southwest, Washington, DC 20375 USA.
EM michael.pomfret@nrl.navy.mil
FU Office of Naval Research
FX Support for this work was provided by the Office of Naval Research. The
authors acknowledge Bryan W. Eichhorn at the University of Maryland,
College Park, and Robert A. Walker and John D. Kirtley at Montana State
University.
NR 37
TC 9
Z9 9
U1 6
U2 66
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1948-7185
J9 J PHYS CHEM LETT
JI J. Phys. Chem. Lett.
PD APR 18
PY 2013
VL 4
IS 8
BP 1310
EP 1314
DI 10.1021/jz400443m
PG 5
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary; Physics, Atomic, Molecular & Chemical
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 130WI
UT WOS:000317950400013
PM 26282145
ER
PT J
AU Poland, GA
Fleming, DM
Treanor, JJ
Maraskovsky, E
Luke, TC
Ball, EMA
Poland, CM
AF Poland, Gregory A.
Fleming, Douglas M.
Treanor, John J.
Maraskovsky, Eugene
Luke, Thomas C.
Ball, Emma M. A.
Poland, Caroline M.
TI New Wisdom to Defy an Old Enemy: Summary from a scientific symposium at
the 4th Influenza Vaccines for the World (IVW) 2012 Congress, 11
October, Valencia, Spain
SO VACCINE
LA English
DT Article
DE Influenza; Influenza vaccine; Passive immunotherapy; ISCOMATRIX (TM)
adjuvant; Healthcare communication; Cognitive styles
ID PLACEBO-CONTROLLED TRIAL; FUTURE H5N1 TREATMENT; PANDEMIC 2009 H1N1;
SPANISH INFLUENZA; UNITED-STATES; A VIRUS; IMMUNOGLOBULIN PREPARATIONS;
PASSIVE IMMUNOTHERAPY; MATERNAL IMMUNIZATION; NEUTRALIZING ACTIVITY
AB Both seasonal and pandemic influenza cause considerable morbidity and mortality globally. In addition, the ongoing threat of new, unpredictable influenza pandemics from emerging variant strains cannot be underestimated. Recently bioCSL (previously known as CSL Biotherapies) sponsored a symposium 'New Wisdom to Defy an Old Enemy' at the 4th Influenza Vaccines for the World Congress in Valencia, Spain. This symposium brought together a renowned faculty of experts to discuss lessons from past experience, novel influenza vaccine developments, and new methods to increase vaccine acceptance and coverage.
Specific topics reviewed and discussed included new vaccine development efforts focused on improving efficacy via alternative administration routes, dose modifications, improved adjuvants, and the use of master donor viruses. Improved safety was also discussed, particularly the new finding of an excess of febrile reactions isolated to children who received the 2010 Southern Hemisphere (SH) trivalent inactivated influenza vaccine (TIV). Significant work has been done to both identify the cause and minimize the risk of febrile reactions in children.
Other novel prophylactic and therapeutic advances were discussed including immunotherapy. Standard IVIg and hIVIg have been used in ferret studies and human case reports with promising results. New adjuvants, such as ISCOMATRIX (TM) adjuvant, were noted to provide single-dose, prolonged protection with seasonal vaccine after lethal H5N1 virus challenge in a ferret model of human influenza disease. The data suggest that adjuvanted seasonal influenza vaccines may provide broader protection than unadjuvanted vaccines. The use of an antigen-formulated vaccine to induce broad protection between pandemics that could bridge the gap between pandemic declaration and the production of a homologous vaccine was also discussed.
Finally, despite the availability of effective vaccines, most current efforts to increase influenza vaccine coverage rates to higher levels (i.e., above 70-80%) have been ineffective in highly developed countries where the vaccine is used, hindered by the public's skepticism towards vaccines in general. New educational and social media methods to increase vaccine acceptance and coverage were discussed. While the first priority should be the development of improved influenza vaccines, a particular focus on the aging global population is critical. It is also important to draw lessons from other academic disciplines that can help to inform vaccine education programs, policy, and communication. By tailoring communications and patient education using an understanding of cognitive bias and the model of preferred cognitive styles, the likelihood of effecting desirable health decisions can be maximized, leading to improved vaccine coverage and control of influenza and other vaccine-preventable diseases. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Poland, Gregory A.] Mayo Clin, Vaccine Res Grp, Rochester, MN USA.
[Poland, Gregory A.] Mayo Clin, Program Translat Immunovirol & Biodef, Rochester, MN USA.
[Fleming, Douglas M.] RCGP Res & Surveillance Ctr, Birmingham, W Midlands, England.
[Treanor, John J.] Univ Rochester, Div Infect Dis, Rochester, NY USA.
[Maraskovsky, Eugene] CSL Ltd, Parkville, Vic, Australia.
[Luke, Thomas C.] USN, Henry Jackson Fdn, Med Res Ctr, Silver Spring, MD USA.
[Ball, Emma M. A.] BioCSL, Melbourne, Vic, Australia.
[Poland, Caroline M.] Taylor Univ, Mental Hlth Counseling Ctr, Upland, IN USA.
RP Poland, GA (reprint author), 200 1st St SW, Rochester, MN 55905 USA.
EM poland.gregory@mayo.edu
FU bioCSL
FX Editorial assistance was provided by PHOCUS Services Ltd, part of the
Fishawack Group of Companies, and supported by bioCSL.
NR 127
TC 6
Z9 6
U1 0
U2 4
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0264-410X
EI 1873-2518
J9 VACCINE
JI Vaccine
PD APR 17
PY 2013
VL 31
SU 1
BP A1
EP A20
DI 10.1016/j.vaccine.2013.02.033
PG 20
WC Immunology; Medicine, Research & Experimental
SC Immunology; Research & Experimental Medicine
GA 136RN
UT WOS:000318381200001
PM 23587330
ER
PT J
AU Hersey, SP
Craven, JS
Metcalf, AR
Lin, J
Lathem, T
Suski, KJ
Cahill, JF
Duong, HT
Sorooshian, A
Jonsson, HH
Shiraiwa, M
Zuend, A
Nenes, A
Prather, KA
Flagan, RC
Seinfeld, JH
AF Hersey, Scott P.
Craven, Jill S.
Metcalf, Andrew R.
Lin, Jack
Lathem, Terry
Suski, Kaitlyn J.
Cahill, John F.
Duong, Hanh T.
Sorooshian, Armin
Jonsson, Haflidi H.
Shiraiwa, Manabu
Zuend, Andreas
Nenes, Athanasios
Prather, Kimberly A.
Flagan, Richard C.
Seinfeld, John H.
TI Composition and hygroscopicity of the Los Angeles Aerosol: CalNex
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Review
DE urban aerosol; hygroscopicity; CCN; CalNex
ID CLOUD CONDENSATION NUCLEI; LASER-INDUCED INCANDESCENCE;
ORGANIC-INORGANIC AEROSOLS; MASS-SPECTRAL SIGNATURES; LIQUID
PHASE-SEPARATION; CALIFORNIA AIR-QUALITY; MIXING STATE; SOURCE
APPORTIONMENT; ACTIVITY-COEFFICIENTS; PARTICULATE MATTER
AB Aircraft-based measurements of aerosol composition, either bulk or single-particle, and both subsaturated and supersaturated hygroscopicity were made in the Los Angeles Basin and its outflows during May 2010 during the CalNex field study. Aerosol composition evolves from source-rich areas in the western Basin to downwind sites in the eastern Basin, evidenced by transition from an external to internal mixture, as well as enhancements in organic O:C ratio, the amount of organics and nitrate internally mixed on almost all particle types, and coating thickness on refractory black carbon (rBC). Transport into hot, dilute outflow regions leads to significant volatilization of semivolatile material, resulting in a unimodal aerosol comprising primarily oxygenated, low-volatility, water-soluble organics and sulfate. The fraction of particles with rBC or soot cores is between 27 and 51% based on data from a Single Particle Soot Photometer (SP2) and Aerosol Time of Flight Mass Spectrometer (ATOFMS). Secondary organics appear to inhibit subsaturated water uptake in aged particles, while CCN activity is enhanced with photochemical age. A biomass-burning event resulted in suppression of subsaturated hygroscopicity but enhancement in CCN activity, suggesting that BB particles may be nonhygroscopic at subsaturated RH but are important sources of CCN. Aerosol aging and biomass burning can lead to discrepancies between subsaturated and supersaturated hygroscopicity that may be related to mixing state. In the cases of biomass burning aerosol and aged particles coated with secondary material, more than a single parameter representation of subsaturated hygroscopicity and CCN activity is needed.
C1 [Hersey, Scott P.; Craven, Jill S.; Metcalf, Andrew R.; Shiraiwa, Manabu; Zuend, Andreas; Flagan, Richard C.; Seinfeld, John H.] CALTECH, Pasadena, CA 91125 USA.
[Metcalf, Andrew R.] Sandia Natl Labs, Combust Res Facil, Livermore, CA USA.
[Lin, Jack; Lathem, Terry; Nenes, Athanasios] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA.
[Suski, Kaitlyn J.; Cahill, John F.; Prather, Kimberly A.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Duong, Hanh T.; Sorooshian, Armin] Univ Arizona, Tucson, AZ USA.
[Jonsson, Haflidi H.] USN, Postgrad Sch, Monterey, CA USA.
[Nenes, Athanasios] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA.
RP Seinfeld, JH (reprint author), CALTECH, Pasadena, CA 91125 USA.
EM seinfeld@caltech.edu
RI Shiraiwa, Manabu/A-6246-2010; Metcalf, Andrew/C-5666-2012; Prather,
Kimberly/A-3892-2008;
OI Shiraiwa, Manabu/0000-0003-2532-5373; Metcalf,
Andrew/0000-0003-0385-1356; Prather, Kimberly/0000-0003-3048-9890;
Zuend, Andreas/0000-0003-3101-8521; Sorooshian,
Armin/0000-0002-2243-2264; Cahill, John/0000-0002-9866-4010
FU NOAA [NA09OAR4310128]; CARB [09-333]
FX This work was supported by NOAA grant NA09OAR4310128 and CARB agreement
#09-333.
NR 122
TC 36
Z9 36
U1 8
U2 128
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD APR 16
PY 2013
VL 118
IS 7
BP 3016
EP 3036
DI 10.1002/jgrd.50307
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 153QT
UT WOS:000319618300025
ER
PT J
AU Huba, JD
Krall, J
AF Huba, J. D.
Krall, J.
TI Impact of meridional winds on equatorial spread F: Revisited
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID IONOSPHERE; IRREGULARITIES
AB The impact of meridional winds on the onset and evolution of equatorial spread F (ESF) is studied using the NRL ionosphere model SAMI3/ESF. The prevailing belief is that meridional winds have a stabilizing effect on the onset of ESF. In this letter, it is shown that this is not necessarily the case and that meridional winds can be destabilizing. We find that a wind profile with a positive gradient as a function of latitude (partial derivative V-m/partial derivative theta >= 0) is a stabilizing influence on the generalized Rayleigh-Taylor instability; a wind profile with a negative gradient (partial derivative V-m/partial derivative theta < 0) is a destabilizing influence. Here, a northward wind is positive, and theta increases in the northward direction. It is suggested that meridional wind profiles may account for, in part, the longitudinal and day-to-day variability of ESF.
C1 [Huba, J. D.; Krall, J.] USN, Div Plasma Phys, Res Lab, Washington, DC USA.
RP Huba, JD (reprint author), USN, Div Plasma Phys, Res Lab, Washington, DC USA.
EM huba@ppd.nrl.navy.mil
FU LWS NASA grant; NRL Base Funds
FX We thank J. Meriwether and J. Makela for helpful comments and
suggestions. This research has been supported by an LWS NASA grant and
NRL Base Funds.
NR 17
TC 10
Z9 10
U1 0
U2 4
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD APR 16
PY 2013
VL 40
IS 7
DI 10.1002/grl.50292
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 148BP
UT WOS:000319217600003
ER
PT J
AU Schaibley, JR
Burgers, AP
McCracken, GA
Duan, LM
Berman, PR
Steel, DG
Bracker, AS
Gammon, D
Sham, LJ
AF Schaibley, J. R.
Burgers, A. P.
McCracken, G. A.
Duan, L. -M.
Berman, P. R.
Steel, D. G.
Bracker, A. S.
Gammon, D.
Sham, L. J.
TI Demonstration of Quantum Entanglement between a Single Electron Spin
Confined to an InAs Quantum Dot and a Photon
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID ATOM; INTERFACE; NETWORKS; DISTANCE
AB The electron spin state of a singly charged semiconductor quantum dot has been shown to form a suitable single qubit for quantum computing architectures with fast gate times. A key challenge in realizing a useful quantum dot quantum computing architecture lies in demonstrating the ability to scale the system to many qubits. In this Letter, we report an all optical experimental demonstration of quantum entanglement between a single electron spin confined to a single charged semiconductor quantum dot and the polarization state of a photon spontaneously emitted from the quantum dot's excited state. We obtain a lower bound on the fidelity of entanglement of 0.59 +/- 0.04, which is 84% of the maximum achievable given the timing resolution of available single photon detectors. In future applications, such as measurement-based spin-spin entanglement which does not require sub-nanosecond timing resolution, we estimate that this system would enable near ideal performance. The inferred (usable) entanglement generation rate is 3 x 10(3) s(-1). This spin-photon entanglement is the first step to a scalable quantum dot quantum computing architecture relying on photon (flying) qubits to mediate entanglement between distant nodes of a quantum dot network. DOI: 10.1103/PhysRevLett.110.167401
C1 [Schaibley, J. R.; Burgers, A. P.; McCracken, G. A.; Duan, L. -M.; Berman, P. R.; Steel, D. G.] Univ Michigan, Harrison M Randall Lab Phys, Ann Arbor, MI 48109 USA.
[Bracker, A. S.; Gammon, D.] USN, Res Lab, Washington, DC 20375 USA.
[Sham, L. J.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA.
RP Schaibley, JR (reprint author), Univ Michigan, Harrison M Randall Lab Phys, Ann Arbor, MI 48109 USA.
EM dst@umich.edu
OI Sham, Lu/0000-0001-5718-2077
FU NSF [PHY0804114, PHY1104446]; AFOSR [FA9550-09-1-0457]; DARPA
[FA8750-12-2-0333, FA9550-10-1-0534]; ARO [W911NF-08-1-0487]; ARO-MURI
[W911NF-09-1-0406]
FX This research is supported by NSF Grants No. PHY0804114 and No.
PHY1104446; AFOSR Grant No. FA9550-09-1-0457; DARPA Grants No.
FA8750-12-2-0333 and No. FA9550-10-1-0534; ARO Grant No.
W911NF-08-1-0487 and ARO-MURI Grant No. W911NF-09-1-0406. J. R.
Schaibley and A. P. Burgers should be considered co-first authors.
NR 33
TC 56
Z9 56
U1 5
U2 58
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD APR 16
PY 2013
VL 110
IS 16
AR 167401
DI 10.1103/PhysRevLett.110.167401
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 129BO
UT WOS:000317813600009
PM 23679636
ER
PT J
AU Freeman, W
Karunasiri, G
AF Freeman, Will
Karunasiri, Gamani
TI Nonresonant tunneling phonon depopulated GaN based terahertz quantum
cascade structures
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID ELECTRON-ELECTRON SCATTERING; LASERS; WELLS; ROUGHNESS; INTERFACE;
TRANSPORT; DESIGN
AB GaN based terahertz quantum cascade structures are theoretically studied. Since the Frohlich interaction is similar to 15 times higher in GaN than in GaAs, level broadening makes obtaining appreciable optical gain difficult even with a large population inversion. A density matrix Monte Carlo method is used to calculate the broadening of the optical gain spectra as a function of lattice temperature. We find by using a proposed method of nonresonant tunneling and electron-longitudinal-optical phonon scattering for depopulation of the lower lasing state, that it is possible to sufficiently isolate the upper lasing state and control the lower lasing state lifetime to obtain high optical gain in GaN. The results predict lasing out to 300 K which is significantly higher than for GaAs based structures. [http://dx.doi.org/10.1063/1.4801947]
C1 [Freeman, Will] USN, Air Warfare Ctr, Div Phys, China Lake, CA 93555 USA.
[Karunasiri, Gamani] USN, Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
RP Freeman, W (reprint author), USN, Air Warfare Ctr, Div Phys, China Lake, CA 93555 USA.
EM will.freeman@navy.mil
FU Section 219
FX This work is supported by Section 219.
NR 30
TC 2
Z9 2
U1 3
U2 20
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0003-6951
EI 1077-3118
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD APR 15
PY 2013
VL 102
IS 15
AR 152111
DI 10.1063/1.4801947
PG 4
WC Physics, Applied
SC Physics
GA 135EC
UT WOS:000318269200042
ER
PT J
AU Pagadarai, S
Wyglinski, AM
Anderson, CR
AF Pagadarai, Srikanth
Wyglinski, Alexander M.
Anderson, Christopher R.
TI Low-mobility channel tracking for MIMO-OFDM communication systems
SO EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING
LA English
DT Article
DE MIMO-OFDM; Cramer-Rao lower bound; Optimal training design; Channel
estimation; Kalman filtering; Capacity bounds
ID VALUED MATRIX DIFFERENTIATION; FADING CHANNELS; MUTUAL INFORMATION;
PILOT SYMBOLS; WIRELESS OFDM; PART I; PERFECT; TRANSMISSIONS;
EQUALIZATION; PERFORMANCE
AB It is now well understood that by exploiting the available additional spatial dimensions, multiple-input multiple-output (MIMO) communication systems provide capacity gains, compared to a single-input single-output systems without increasing the overall transmit power or requiring additional bandwidth. However, these large capacity gains are feasible only when the perfect knowledge of the channel is available to the receiver. Consequently, when the channel knowledge is imperfect, as is common in practical settings, the impact of the achievable capacity needs to be evaluated. In this study, we begin with a general MIMO framework at the outset and specialize it to the case of orthogonal frequency division multiplexing (OFDM) systems by decoupling channel estimation from data detection. Cyclic-prefixed OFDM systems have attracted widespread interest due to several appealing characteristics not least of which is the fact that a single-tap frequency-domain equalizer per subcarrier is sufficient due to the circulant structure of the resulting channel matrix. We consider a low-mobility wireless channel which exhibits inter-block channel variations and apply Kalman tracking when MIMO-OFDM communication is performed. Furthermore, we consider the signal transmission to contain a stream of training and information symbols followed by information symbols alone. By relying on predicted channel states when training symbols are absent, we aim to understand how the improvements in channel capacity are affected by imperfect channel knowledge. We show that the Kalman recursion procedure can be simplified by the optimal minimum mean square error training design. Using the simplified recursion, we derive capacity upper and lower bounds to evaluate the performance of the system.
C1 [Pagadarai, Srikanth; Wyglinski, Alexander M.] Worcester Polytech Inst, Dept Elect & Comp Engn, Worcester, MA 01609 USA.
[Anderson, Christopher R.] US Naval Acad, Dept Elect Engn, Annapolis, MD 21402 USA.
RP Pagadarai, S (reprint author), Worcester Polytech Inst, Dept Elect & Comp Engn, Worcester, MA 01609 USA.
EM srikanthp@alum.wpi.edu
FU Office of Naval Research (ONR) [N00014-10-1-0065]
FX This study was supported by the Office of Naval Research (ONR) via grant
N00014-10-1-0065.
NR 41
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER INTERNATIONAL PUBLISHING AG
PI CHAM
PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND
SN 1687-6180
J9 EURASIP J ADV SIG PR
JI EURASIP J. Adv. Signal Process.
PD APR 15
PY 2013
AR 78
DI 10.1186/1687-6180-2013-78
PG 18
WC Engineering, Electrical & Electronic
SC Engineering
GA AD4DL
UT WOS:000333197000001
ER
PT J
AU Hu, J
Menyuk, CR
Shaw, LB
Sanghera, JS
Aggarwal, ID
AF Hu, J.
Menyuk, C. R.
Shaw, L. B.
Sanghera, J. S.
Aggarwal, I. D.
TI A mid-IR source with increased bandwidth using tapered As2S3
chalcogenide photonic crystal fibers
SO OPTICS COMMUNICATIONS
LA English
DT Article
DE Supercontinuum generation; Tapered fiber; Chalcogenide photonic crystal
fiber
ID 2 MU-M; MICROSTRUCTURED-OPTICAL-FIBERS; SELF-FREQUENCY SHIFT;
SUPERCONTINUUM GENERATION; PULSE-ENERGY; SOLITON; OPTIMIZATION; LASER;
MODE; PUMP
AB We present simulation results for supercontinuum generation using tapered As2S3 chalcogenide photonic crystal fibers (PCFs). We demonstrate that an increased soliton self-frequency shift can be achieved using a tapered PCF. There is an optimal tapered PCF, which yields an additional 0.4 mu m shift to longer wavelengths relative to the shift that is obtained in an untapered PCF, leading to an increase in the bandwidth from 2.5 mu m to 3.6 mu m. However, the ratio of the output power in the region between 3 and 5 mu m to the input power decreases in a tapered fiber because of the increased fiber leakage loss. (C) 2012 Elsevier B.V. All rights reserved.
C1 [Hu, J.] Baylor Univ, Dept Elect & Comp Engn, Waco, TX 76798 USA.
[Menyuk, C. R.] Univ Maryland Baltimore Cty, Dept Comp Sci & Elect Engn, Baltimore, MD 21250 USA.
[Shaw, L. B.; Sanghera, J. S.] USN, Res Lab, Washington, DC 20375 USA.
[Aggarwal, I. D.] Sotera Def Solut, Crofton, MD 21114 USA.
RP Hu, J (reprint author), Baylor Univ, Dept Elect & Comp Engn, 1 Bear Pl 97356, Waco, TX 76798 USA.
EM jonathan_hu@baylor.edu
RI Hu, Jonathan/A-8618-2011
NR 26
TC 4
Z9 4
U1 0
U2 56
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0030-4018
J9 OPT COMMUN
JI Opt. Commun.
PD APR 15
PY 2013
VL 293
BP 116
EP 118
DI 10.1016/j.optcom.2012.11.021
PG 3
WC Optics
SC Optics
GA 090VU
UT WOS:000315008900020
ER
PT J
AU Marks, P
Schmitt, M
AF Marks, Paul
Schmitt, Michael
TI The right to bear cyber arms
SO NEW SCIENTIST
LA English
DT Editorial Material
C1 [Schmitt, Michael] USAF, Washington, DC USA.
[Schmitt, Michael] USN, War Coll, Int Law Dept, Newport, RI USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU REED BUSINESS INFORMATION LTD
PI SUTTON
PA QUADRANT HOUSE THE QUADRANT, SUTTON SM2 5AS, SURREY, ENGLAND
SN 0262-4079
J9 NEW SCI
JI New Sci.
PD APR 13
PY 2013
VL 218
IS 2912
BP 26
EP 27
PG 2
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 127PQ
UT WOS:000317711300017
ER
PT J
AU Bradburne, CE
Verhoeven, AB
Manyam, GC
Chaudhry, SA
Chang, EL
Thach, DC
Bailey, CL
van Hoek, ML
AF Bradburne, Christopher E.
Verhoeven, Anne B.
Manyam, Ganiraju C.
Chaudhry, Saira A.
Chang, Eddie L.
Thach, Dzung C.
Bailey, Charles L.
van Hoek, Monique L.
TI Temporal Transcriptional Response during Infection of Type II Alveolar
Epithelial Cells with Francisella tularensis Live Vaccine Strain (LVS)
Supports a General Host Suppression and Bacterial Uptake by
Macropinocytosis
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID INNATE IMMUNE-RESPONSE; MURINE MACROPHAGES; MICROARRAY ANALYSIS;
RESPIRATORY CHALLENGE; PULMONARY INFECTION; TULAREMIA VACCINE; YERSINIA
EFFECTOR; INDUCED APOPTOSIS; HUMAN MONOCYTES; SEVERE SEPSIS
AB Pneumonic tularemia is caused by inhalation of Francisella tularensis, one of the most infectious microbes known. We wanted to study the kinetics of the initial and early interactions between bacterium and host cells in the lung. To do this, we examined the infection of A549 airway epithelial cells with the live vaccine strain (LVS) of F. tularensis. A549 cells were infected and analyzed for global transcriptional response at multiple time points up to 16 h following infection. At 15 min and 2 h, a strong transcriptional response was observed including cytoskeletal rearrangement, intracellular transport, and interferon signaling. However, at later time points (6 and 16 h), very little differential gene expression was observed, indicating a general suppression of the host response consistent with other reported cell lines and murine tissues. Genes for macropinocytosis and actin/cytoskeleton rearrangement were highly up-regulated and common to the 15 min and 2 h time points, suggesting the use of this method for bacterial entry into cells. We demonstrate macropinocytosis through the uptake of FITC-dextran and amiloride inhibition of Francisella LVS uptake. Our results suggest that macropinocytosis is a potential mechanism of intracellular entry by LVS and that the host cell response is suppressed during the first 2-6 h of infection. These results suggest that the attenuated Francisella LVS induces significant host cell signaling at very early time points after the bacteria's interaction with the cell.
C1 [Bradburne, Christopher E.; Chang, Eddie L.; Thach, Dzung C.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Bradburne, Christopher E.] Johns Hopkins Univ, Appl Phys Lab, Asymmetr Operat Dept, Laurel, MD 20723 USA.
[Verhoeven, Anne B.; Manyam, Ganiraju C.; Chaudhry, Saira A.; van Hoek, Monique L.] George Mason Univ, Sch Syst Biol, Manassas, VA 20110 USA.
[Manyam, Ganiraju C.] Univ Texas MD Anderson Canc Ctr, Dept Bioinformat & Computat Biol, Houston, TX 77030 USA.
[Thach, Dzung C.] NIAID, NIH, Bethesda, MD 20892 USA.
[Bailey, Charles L.; van Hoek, Monique L.] George Mason Univ, Natl Ctr Biodef & Infect Dis, Manassas, VA 20110 USA.
RP van Hoek, ML (reprint author), George Mason Univ, Discovery Hall,MSN 1H8,10910 Univ Blvd, Manassas, VA 20110 USA.
EM mvanhoek@gmu.edu
RI Manyam, Ganiraju/B-5890-2014; Manyam, Ganiraju/E-9150-2012;
OI Manyam, Ganiraju/0000-0001-6006-8961; van Hoek,
Monique/0000-0003-1679-4899
FU Joint Science and Technology Office for Chemical and Biological
Defense/Defense Threat Reduction Agency; U.S. Army Medical Research and
Material Command [W81XWH-06-C-0360, HDTRA1-12-C-0039]; National Research
Council
FX This work was supported through the Joint Science and Technology Office
for Chemical and Biological Defense/Defense Threat Reduction Agency and
contracted through the U.S. Army Medical Research and Material Command
under Contract No. W81XWH-06-C-0360 (to A. B. V., C. L. B., and M. V.
H.) and HDTRA1-12-C-0039 (to M. V. H.).; Supported by a fellowship from
the National Research Council while at the Center for Bio/Molecular
Science and Engineering/United States Naval Research Laboratory and by
internal funding from the Asymmetric Operations Department while at
Johns Hopkins University/Applied Physics Laboratory.
NR 79
TC 4
Z9 4
U1 0
U2 13
PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA
SN 0021-9258
J9 J BIOL CHEM
JI J. Biol. Chem.
PD APR 12
PY 2013
VL 288
IS 15
BP 10780
EP 10791
DI 10.1074/jbc.M112.362178
PG 12
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 125TU
UT WOS:000317565000056
PM 23322778
ER
PT J
AU Lebedev, N
Griva, I
Blom, A
AF Lebedev, Nikolai
Griva, Igor
Blom, Anders
TI Internal Control of Electron Transfer through a Single Iron Atom by
Chelating Porphyrin
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID OLIGO(PHENYLENE VINYLENE); SOLAR-CELLS; CONDUCTANCE; TRANSPORT;
MOLECULE; SYSTEMS
AB Construction of efficient and highly integrated electronic devices is the main challenge and goal of nanoelectronics. The main problem in the construction of such devices is the fusion between conducting and controlling parts of the device, substantially reducing the efficiency of regulation. To approach the problem we study the electron transfer through a carbon nanotube (CNT)-histidine-heme-histidine-CNT conjugate with an orthogonal porphyrin orientation relative to the CNT electrodes. Using density functional theory and nonequilibrium Greens function calculations we show that at low bias the CNT molecular orbitals are electronically coupled only to the Fe atom but uncoupled from the tetrapyrrole ring of the porphyrin. We found that at low bias the electrons pass exclusively through the central Fe atom of the porphyrin, but at higher bias they are partially scattered by the tetrapyrrole ring, leading to a reduction of the total current through the molecule (negative differential resistance). This allows for keeping the electron flow through the device at a specific level and for controlling the current through the device by the redox state of the tetrapyrrole ring. In the orthogonal orientation, neither of the porphyrin side groups directly participates in the electron transfer through the heme and can thus be used for porphyrin binding and orientation to proteins or electrodes. These results open the possibility for the construction of a highly integrated electronic field effect transistor in a single molecule with controllable electron transfer through individual iron atoms.
C1 [Lebedev, Nikolai] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
[Griva, Igor] George Mason Univ, Dept Math Sci, Fairfax, VA 22030 USA.
[Blom, Anders] QuantumWise AS, DK-2100 Copenhagen, Denmark.
RP Lebedev, N (reprint author), USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
EM nikolai.lebedev@nrl.navy.mil
FU Air Force Office of Scientific Research; Office of Naval Research
through the Naval Research Laboratory base program
FX We gratefully acknowledge the support of this work by the Air Force
Office of Scientific Research and the Office of Naval Research through
the Naval Research Laboratory base program.
NR 25
TC 6
Z9 6
U1 1
U2 34
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD APR 11
PY 2013
VL 117
IS 14
BP 6933
EP 6939
DI 10.1021/jp311686c
PG 7
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 125PB
UT WOS:000317552200004
ER
PT J
AU Doschek, GA
Warren, HP
Young, PR
AF Doschek, G. A.
Warren, H. P.
Young, P. R.
TI CHROMOSPHERIC EVAPORATION IN AN M1.8 FLARE OBSERVED BY THE
EXTREME-ULTRAVIOLET IMAGING SPECTROMETER ON HINODE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE Sun: activity; Sun: flares; Sun: UV radiation
ID X-RAY-SPECTRA; SOLAR-FLARE; IMPULSIVE PHASE; NUMERICAL SIMULATIONS;
LOOPS; TEMPERATURE; GASDYNAMICS; RESOLUTION; HYDRODYNAMICS; SPECTROSCOPY
AB We discuss observations of chromospheric evaporation for a complex flare that occurred on 2012 March 9 near 03: 30 UT obtained from the Extreme-ultraviolet Imaging Spectrometer (EIS) on board the Hinode spacecraft. This was a multiple event with a strong energy input that reached the M1.8 class when observed by EIS. EIS was in raster mode and fortunately the slit was almost at the exact location of a significant energy input. Also, EIS obtained a full-CCD spectrum of the flare, i.e., the entire CCD was readout so that data were obtained for about the 500 lines identified in the EIS wavelength ranges. Chromospheric evaporation characterized by 150-200 km s(-1) upflows was observed in multiple locations in multi-million degree spectral lines of flare ions such as Fe XXII, Fe XXIII, and Fe XXIV, with simultaneous 20-60 km s(-1) upflows in million degree coronal lines from ions such as Fe XII-Fe XVI. The behavior of cooler, transition region ions such as O VI, Fe VIII, He II, and Fe X is more complex, but upflows were also observed in Fe VIII and Fe X lines. At a point close to strong energy input in space and time, the flare ions Fe XXII, Fe XXIII, and Fe XXIV reveal an isothermal source with a temperature close to 14 MK and no strong blueshifted components. At this location there is a strong downflow in cooler active region lines from ions such as Fe XIII and Fe XIV, on the order of 200 km s(-1). We speculate that this downflow may be evidence of the downward shock produced by reconnection in the current sheet seen in MHD simulations. A sunquake also occurred near this location. Electron densities were obtained from density sensitive lines ratios from Fe XIII and Fe XIV. Atmospheric Imaging Assembly (AIA) observations from the Solar Dynamics Observatory are used with JHelioviewer to obtain a qualitative overview of the flare. However, AIA data are not presented in this paper. In summary, spectroscopic data from EIS are presented that can be used for predictive tests of models of chromospheric evaporation as envisaged in the Standard Flare Model.
C1 [Doschek, G. A.; Warren, H. P.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Young, P. R.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
RP Doschek, GA (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
OI Young, Peter/0000-0001-9034-2925
FU JAXA; NAOJ; STFC; NASA; ESA (European Space Agency); NSC (Norway); NASA
Hinode program; ONR/NRL 6.1 basic research funds
FX Hinode is a Japanese mission developed and launched by ISAS/JAXA,
collaborating with NAOJ as domestic partner, and NASA (USA) and STFC
(UK) as international partners. Scientific operation of the Hinode
mission is conducted by the Hinode science team organized at ISAS/JAXA.
This team mainly consists of scientists from institutes in the partner
countries. Support for the post-launch operation is provided by JAXA and
NAOJ, STFC, NASA, ESA (European Space Agency), and NSC (Norway). We are
grateful to the Hinode team for all their efforts in the design, build,
and operation of the mission. The authors acknowledge support from the
NASA Hinode program and from ONR/NRL 6.1 basic research funds. The
authors thank the referee for a careful reading of the manuscript and
many constructive comments.
NR 42
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U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD APR 10
PY 2013
VL 767
IS 1
AR 55
DI 10.1088/0004-637X/767/1/55
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 117IT
UT WOS:000316947500055
ER
PT J
AU Rothberg, B
Fischer, J
Rodrigues, M
Sanders, DB
AF Rothberg, Barry
Fischer, Jacqueline
Rodrigues, Myriam
Sanders, D. B.
TI UNVEILING THE sigma-DISCREPANCY. II. REVISITING THE EVOLUTION OF ULIRGs
AND THE ORIGIN OF QUASARS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: evolution; galaxies: formation; galaxies: interactions;
galaxies: kinematics and dynamics; galaxies: peculiar
ID EARLY-TYPE GALAXIES; ULTRALUMINOUS INFRARED GALAXIES;
HUBBLE-SPACE-TELESCOPE; DIGITAL SKY SURVEY; QSO HOST GALAXIES; TO-LIGHT
RATIOS; ACTIVE GALACTIC NUCLEI; STAR-FORMING GALAXIES; BAND IMAGING
SURVEY; GAS-RICH MERGERS
AB We present the first central velocity dispersions (sigma(o)) measured from the 0.85 mu m Calcium II Triplet (CaT) for eight advanced (i.e., single nuclei) local (z <= 0.15) Ultraluminous Infrared Galaxies (ULIRGs). First, these measurements are used to test the prediction that the "sigma-Discrepancy," in which the CaT sigma(o) is systematically larger than the sigma(o) obtained from the 1.6 or 2.3 mu m stellar CO band-heads, extends to ULIRG luminosities. Next, we combine the CaT data with rest-frame I-band photometry obtained from archival Hubble Space Telescope data and the Sloan Digital Sky Survey (SDSS) to derive dynamical properties for the eight ULIRGs. These are then compared to the dynamical properties of 9255 elliptical galaxies from the SDSS within the same redshift volume and of a relatively nearby (z < 0.4) sample of 53 QSO host galaxies. A comparison is also made between the I-band and H-band dynamical properties of the ULIRGs. We find four key results: (1) the sigma-Discrepancy extends to ULIRG luminosities; (2) at I-band ULIRGs lie on the fundamental plane in a region consistent with the most massive elliptical galaxies and not low-intermediate mass ellipticals as previously reported in the near-infrared; (3) the I-band M/L of ULIRGs are consistent with an old stellar population, while at H-band ULIRGs appear significantly younger and less massive; and (4) we derive an I-band Kormendy Relation from the SDSS ellipticals and demonstrate that ULIRGs and QSO host galaxies are dynamically similar.
C1 [Rothberg, Barry] Space Telescope Sci Inst, Baltimore, MD 21218 USA.
[Rothberg, Barry] George Mason Univ, Dept Phys & Astron, Fairfax, VA 22030 USA.
[Rothberg, Barry] Leibniz Inst Astrophys Potsdam AIP, D-14482 Potsdam, Germany.
[Rodrigues, Myriam] USN, Res Lab, Washington, DC 20375 USA.
[Rodrigues, Myriam] European So Observ, Santiago 19, Chile.
[Sanders, D. B.] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA.
RP Rothberg, B (reprint author), Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA.
EM brothberg@aip.de
FU National Research Council; W. M. Keck Foundation; Office of Naval
Research; NASA Keck PI Data Award; Alfred P. Sloan Foundation; National
Science Foundation; U.S. Department of Energy; National Aeronautics and
Space Administration; Japanese Monbukagakusho; Max Planck Society;
Higher Education Funding Council for England
FX National Research Council Postdoctoral Fellowship held at the Naval
Research Laboratory.; Some of this research was performed while B.
Rothberg held a National Research Council Associateship Award at the
Naval Research Laboratory. Basic research in astronomy at the Naval
Research Laboratory is funded by the Office of Naval Research. This work
was supported in part by a NASA Keck PI Data Award, administered by the
NASA Exoplanet Science Institute. Data presented herein were obtained at
the W. M. Keck Observatory from telescope time allocated to the National
Aeronautics and Space Administration through the agency's scientific
partnership with the California Institute of Technology and the
University of California. The Observatory was made possible by the
generous financial support of the W. M. Keck Foundation. The authors
would like to thank: Drs. Sylvain Veilleux and David Rupke for providing
information and help with the flux calibration; Drs. David Floyd and
Timothy Hamilton for providing additional information and data; and Drs.
Gabriela Canalizo and Scott Dahm for helpful discussions. The authors
would also like to thank the anonymous referee for useful and detailed
comments which strengthened the paper. This research made use of the OSX
Version of SCISOFT assembled by Dr. Nor Pirzkal. This work has made use
of the EZGal Model Generator (http:// www. baryons. org/ ezgal/). We
would also like to acknowledge the University of Maximegalon's MISPWOSO.
This research has made use of the NASA/ IPAC Extragalactic Database
(NED) which is operated by the Jet Propulsion Laboratory, California
Institute of Technology, under contract with the National Aeronautics
and Space Administration. This publication makes use of data products
from the Wide-field Infrared Survey Explorer, which is a joint project
of the University of California, Los Angeles, and the Jet Propulsion
Laboratory/ California Institute of Technology, funded by theNational
Aeronautics and Space Administration. This work made use of the Sloan
Digital Sky Survey (SDSS). Funding for the SDSS and SDSS-II has been
provided by the Alfred P. Sloan Foundation, the Participating
Institutions, the National Science Foundation, the U.S. Department of
Energy, the National Aeronautics and Space Administration, the Japanese
Monbukagakusho, the Max Planck Society, and the Higher Education Funding
Council for England. The SDSS Web site is http:// www. sdss. org/. The
SDSS is managed by theAstrophysical Research Consortium for the
Participating Institutions. The Participating Institutions are the
American Museum of Natural History, Astrophysical Institute Potsdam,
University of Basel, University of Cambridge, CaseWesternReserve
University, University of Chicago, Drexel University, Fermilab, the
Institute forAdvanced Study, the Japan Participation Group, Johns
Hopkins University, the Joint Institute forNuclear Astrophysics,
theKavli Institute for Particle Astrophysics and Cosmology, the Korean
Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos
National Laboratory, the Max-Planck-Institute for Astronomy (MPIA),
theMax-Planck-Institute for Astrophysics (MPA), New Mexico
StateUniversity, Ohio State University, University of Pittsburgh,
University of Portsmouth, Princeton University, the United States Naval
Observatory, and the University of Washington.
NR 199
TC 16
Z9 16
U1 0
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD APR 10
PY 2013
VL 767
IS 1
AR 72
DI 10.1088/0004-637X/767/1/72
PG 24
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 117IT
UT WOS:000316947500072
ER
PT J
AU Stutz, AM
Tobin, JJ
Stanke, T
Megeath, ST
Fischer, WJ
Robitaille, T
Henning, T
Ali, B
di Francesco, J
Furlan, E
Hartmann, L
Osorio, M
Wilson, TL
Allen, L
Krause, O
Manoj, P
AF Stutz, Amelia M.
Tobin, John J.
Stanke, Thomas
Megeath, S. Thomas
Fischer, William J.
Robitaille, Thomas
Henning, Thomas
Ali, Babar
di Francesco, James
Furlan, Elise
Hartmann, Lee
Osorio, Mayra
Wilson, Thomas L.
Allen, Lori
Krause, Oliver
Manoj, P.
TI A HERSCHEL AND APEX CENSUS OF THE REDDEST SOURCES IN ORION: SEARCHING
FOR THE YOUNGEST PROTOSTARS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE ISM: clouds; stars: formation; stars: low-mass; stars: protostars
ID 1ST HYDROSTATIC CORE; B MOLECULAR CLOUD; STAR-FORMING CLOUD; SPITZER C2D
SURVEY; 2-DIMENSIONAL RADIATIVE-TRANSFER; INITIAL MASS FUNCTION;
HERBIG-HARO OBJECTS; NEARBY DENSE CORES; STELLAR OBJECTS;
SUBMILLIMETER-CONTINUUM
AB We perform a census of the reddest, and potentially youngest, protostars in the Orion molecular clouds using data obtained with the PACS instrument on board the Herschel Space Observatory and the LABOCA and SABOCA instruments on APEX as part of the Herschel Orion Protostar Survey (HOPS). A total of 55 new protostar candidates are detected at 70 mu m and 160 mu m that are either too faint (m(24) > 7 mag) to be reliably classified as protostars or undetected in the Spitzer/MIPS 24 mu m band. We find that the 11 reddest protostar candidates with log lambda F(lambda)70/lambda F(lambda)24 > 1.65 are free of contamination and can thus be reliably explained as protostars. The remaining 44 sources have less extreme 70/24 colors, fainter 70 mu m fluxes, and higher levels of contamination. Taking the previously known sample of Spitzer protostars and the new sample together, we find 18 sources that have log lambda F(lambda)70/lambda F(lambda)24 > 1.65; we name these sources "PACS Bright Red sources," or PBRs. Our analysis reveals that the PBR sample is composed of Class 0 like sources characterized by very red spectral energy distributions (SEDs; T-bol < 45 K) and large values of sub-millimeter fluxes (L-smm/L-bol > 0.6%). Modified blackbody fits to the SEDs provide lower limits to the envelope masses of 0.2-2 M-circle dot and luminosities of 0.7-10 L-circle dot. Based on these properties, and a comparison of the SEDs with radiative transfer models of protostars, we conclude that the PBRs are most likely extreme Class 0 objects distinguished by higher than typical envelope densities and hence, high mass infall rates.
C1 [Stutz, Amelia M.; Robitaille, Thomas; Henning, Thomas; Krause, Oliver] Max Planck Inst Astron, D-69117 Heidelberg, Germany.
[Tobin, John J.] Natl Radio Astron Observ, Charlottesville, VA 22903 USA.
[Stanke, Thomas] ESO, D-85748 Garching, Germany.
[Megeath, S. Thomas; Fischer, William J.] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA.
[Ali, Babar; Furlan, Elise] CALTECH, NHSC, IPAC, Pasadena, CA 91125 USA.
[di Francesco, James] Natl Res Council Canada, Herzberg Inst Astrophys, Victoria, BC V9E 2E7, Canada.
[di Francesco, James] Univ Victoria, Dept Phys & Astron, Victoria, BC V8W 3P6, Canada.
[Furlan, Elise; Allen, Lori] Natl Opt Astron Observ, Tucson, AZ 85719 USA.
[Hartmann, Lee] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA.
[Osorio, Mayra] CSIC, Inst Astrofis Andalucia, E-18008 Granada, Spain.
[Wilson, Thomas L.] USN, Res Lab, Washington, DC 20375 USA.
[Manoj, P.] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA.
RP Stutz, AM (reprint author), Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany.
EM stutz@mpia.de
OI Fischer, William J/0000-0002-3747-2496; Stutz,
Amelia/0000-0003-2300-8200; Furlan, Elise/0000-0001-9800-6248;
Robitaille, Thomas/0000-0002-8642-1329
FU Deutsche Forschungsgemeinschaft; NASA [HST-HF-51300.01A, NAS 5-26555];
Space Telescope Science Institute; BMVIT (Austria); ESA-PRODEX
(Belgium); CEA/CNES (France); DLR (Germany); ASI/INAF (Italy);
CICYT/MCYT(Spain); Herschel Science Ground Segment Consortium; ESA; NASA
Herschel Science Center; HIFI; PACS; SPIRE consortia
FX The authors gratefully acknowledge help from Helene Roussel in the
production of Scanamorphos PACS maps. Furthermore, we are grateful to
Oskari Miettinen for sharing the reduced SABOCA map of the 090003 region
and to Joel Green for providing the SED VLA1623-243. A. M. S. kindly
acknowledges helpful and insightful discussions with Ralf Launhardt. The
work of A. M. S. was supported by the Deutsche Forschungsgemeinschaft
priority program 1573 ("Physics of the Interstellar Medium"). J. T.
acknowledges support provided by NASA through Hubble Fellowship grant #
HST-HF-51300.01A 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. The National
Radio Astronomy Observatory is a facility of the National Science
Foundation operated under cooperative agreement by Associated
Universities, Inc. This publication is based on data acquired with the
Atacama Pathfinder Experiment (APEX). APEX is a collaboration between
the Max-Planck-Institut fur Radioastronomie, the European Southern
Observatory, and the Onsala Space Observatory. The Herschel spacecraft
was designed, built, tested, and launched under a contract to ESA
managed by the Herschel/Planck Project team by an industrial consortium
under the overall responsibility of the prime contractor Thales Alenia
Space (Cannes), and including Astrium (Friedrichshafen), responsible for
the payload module and for system testing at spacecraft level; Thales
Alenia Space (Turin), responsible for the service module; and Astrium
(Toulouse), responsible for the telescope, with in excess of a hundred
subcontractors. PACS has been developed by a consortium of institutes
led by MPE (Germany) and including UVIE (Austria); KU Leuven, CSL, IMEC
(Belgium); CEA, LAM (France); MPIA (Germany); INAF- IFSI/OAA/OAP/OAT,
LENS, SISSA (Italy); IAC (Spain). This development has been supported by
the funding agencies BMVIT (Austria), ESA-PRODEX (Belgium), CEA/CNES
(France), DLR (Germany), ASI/INAF (Italy), and CICYT/MCYT(Spain).
HCSS/HSpot/HIPE is a joint development (are joint developments) by the
Herschel Science Ground Segment Consortium, consisting of ESA, the NASA
Herschel Science Center, and the HIFI, PACS, and SPIRE consortia. We
also use the Spitzer Space Telescope and the Infrared Processing and
Analysis Center (IPAC) Infrared Science Archive, which are operated by
JPL/Caltech under a contract with NASA. This research has made use of
the SIMBAD database and VizieR catalog access tool, operated at CDS,
Strasbourg, France. Support for this work was provided by the National
Aeronautics and Space Administration (NASA) through awards issued by the
Jet Propulsion Laboratory, California Institute of Technology
(JPL/Caltech).
NR 127
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U1 0
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD APR 10
PY 2013
VL 767
IS 1
AR 36
DI 10.1088/0004-637X/767/1/36
PG 32
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 117IT
UT WOS:000316947500036
ER
PT J
AU Giller, CB
Roland, CM
AF Giller, C. B.
Roland, C. M.
TI Strength Enhancement in Miscible Blends of Butyl Rubber and
Polyisobutylene
SO MACROMOLECULES
LA English
DT Article
ID INTERPENETRATING POLYMER NETWORKS; HETEROGENEOUS NETWORKS; BIMODAL
NETWORKS; ELASTICITY; ELASTOMERS; HYDROGELS; CHAINS; DISTRIBUTIONS;
POLYISOPRENE; MIXTURES
AB The thermodynamic miscibility of polyisobutylene (Pm) with butyl rubber (IIR), a copolymer of isobutene and a few mole % isoprene, was established through observation of spontaneous interdiffusion of the polymers Networks were prepared from their blend, in which only the IIR component was cross-linked (NB cannot be cross-linked by sulfur vulcanization or any other method). The blends were significantly stronger (almost 3-fold higher tensile strength) and tougher than neat IIR networks, when compared at equal modulus. This improvement was greater for blends having higher molecular weight PIB. The results show that miscible blends with components having large disparities in their degree of cross linking (infinite in the present case) circumvent the trade-off between stiffness and strength found for conventional elastomers. The operative mechanism is alleviation of local overstresses by configurational rearrangement of unattached, but entangled, chains. This mechanism is common to other approaches that improve the mechanical properties of networks, such as bimodal networks and hydrogel blends.
C1 [Giller, C. B.; Roland, C. M.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Roland, CM (reprint author), USN, Res Lab, Div Chem, Code 6120, Washington, DC 20375 USA.
EM roland@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. C.B.G.
acknowledges an American Society for Engineering Education postdoctoral
fellowship. G.S. Buckley contributed to early aspects of this work.
NR 39
TC 7
Z9 7
U1 4
U2 49
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
EI 1520-5835
J9 MACROMOLECULES
JI Macromolecules
PD APR 9
PY 2013
VL 46
IS 7
BP 2818
EP 2822
DI 10.1021/ma302523c
PG 5
WC Polymer Science
SC Polymer Science
GA 124BH
UT WOS:000317438300032
ER
PT J
AU Rivera, FP
Medina, AM
Bezada, S
Valencia, R
Bernal, M
Meza, R
Maves, RC
Ochoa, TJ
AF Rivera, Fulton P.
Medina, Anicia M.
Bezada, Sandra
Valencia, Roberto
Bernal, Maria
Meza, Rina
Maves, Ryan C.
Ochoa, Theresa J.
TI Bovine Lactoferrin Decreases Cholera-Toxin-Induced Intestinal Fluid
Accumulation in Mice by Ganglioside Interaction
SO PLOS ONE
LA English
DT Article
ID ENTEROTOXIGENIC ESCHERICHIA-COLI; HEAT-LABILE ENTEROTOXIN; FREE
SECRETORY COMPONENT; HUMAN-MILK; ANTIBACTERIAL ACTIVITY; BINDING;
DIARRHEA; CELLS; ANTAGONISTS; INHIBITION
AB Secretory diarrhea caused by cholera toxin (CT) is initiated by binding of CT's B subunit (CTB) to GM1-ganglioside on the surface of intestinal cells. Lactoferrin, a breast milk glycoprotein, has shown protective effect against several enteropathogens. The aims of this study were to determine the effect of bovine-lactoferrin (bLF) on CT-induced intestinal fluid accumulation in mice, and the interaction between bLF and CT/CTB with the GM1-ganglioside receptor. Fluid accumulation induced by CT was evaluated in the mouse ileal loop model using 56 BALB/c mice, with and without bLF added before, after or at the same time of CT administration. The effect of bLF in the interaction of CT and CTB with GM1-ganglioside was evaluated by a GM1-enzyme-linked immunosorbent assay. bLF decreased CT-induced fluid accumulation in the ileal loop of mice. The greatest effect was when bLF was added before CT (median, 0.066 vs. 0.166 g/cm, with and without bLF respectively, p<0.01). We conclude that bLF decreases binding of CT and CTB to GM1-ganglioside, suggesting that bLF suppresses CT-induced fluid accumulation by blocking the binding of CTB to GM1-ganglioside. bLF may be effective as adjunctive therapy for treatment of cholera diarrhea.
C1 [Rivera, Fulton P.; Medina, Anicia M.; Ochoa, Theresa J.] Univ Peruana Cayetano Heredia, Inst Med Trop Alexander von Humboldt, Lima, Peru.
[Rivera, Fulton P.] Univ Buenos Aires, Fac Med, Dept Fisiol, Lab Fisiopatogenia, RA-1425 Buenos Aires, DF, Argentina.
[Bezada, Sandra] Univ Nacl Mayor San Marcos, Fac Farm & Bioquim, Farmacol Lab, Lima 14, Peru.
[Valencia, Roberto] Univ Peruana Cayetano Heredia, Fac Vet & Zootecnia, Lima, Peru.
[Bernal, Maria; Meza, Rina; Maves, Ryan C.] US Naval Med Res Unit SIX, Dept Bacteriol, Lima, Peru.
[Maves, Ryan C.] USN, San Diego Med Ctr, Div Infect Dis, San Diego, CA 92152 USA.
[Ochoa, Theresa J.] Univ Texas Houston, Sch Publ Hlth, Ctr Infect Dis, Houston, TX USA.
RP Rivera, FP (reprint author), Univ Peruana Cayetano Heredia, Inst Med Trop Alexander von Humboldt, Lima, Peru.
EM Fulton.Rivera@upch.pe
FU Institutional Research Fund (Fondo Concursable) of Universidad Peruana
Cayetano Heredia; United States Military Infectious Disease Research
Program (MIDRP) [60000.000.0.B0017]
FX This work has been funded by the Institutional Research Fund (Fondo
Concursable) of Universidad Peruana Cayetano Heredia (F.P.R) and by the
United States Military Infectious Disease Research Program (MIDRP) (work
unit number 60000.000.0.B0017). The views expressed in this article are
those of the authors and do not necessarily reflect the official policy
or position of the Department of the Navy, Department of Defense, the
U.S. Government, nor that of the National Institutes of Health or other
funding institutions. The funders had no role in study design, data
collection and analysis, decision to publish, or preparation of the
manuscript.
NR 35
TC 3
Z9 3
U1 1
U2 6
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD APR 8
PY 2013
VL 8
IS 4
AR e59253
DI 10.1371/journal.pone.0059253
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 130FG
UT WOS:000317898000009
PM 23580005
ER
PT J
AU Vazquez-Prokopec, GM
Bisanzio, D
Stoddard, ST
Paz-Soldan, V
Morrison, AC
Elder, JP
Ramirez-Paredes, J
Halsey, ES
Kochel, TJ
Scott, TW
Kitron, U
AF Vazquez-Prokopec, Gonzalo M.
Bisanzio, Donal
Stoddard, Steven T.
Paz-Soldan, Valerie
Morrison, Amy C.
Elder, John P.
Ramirez-Paredes, Jhon
Halsey, Eric S.
Kochel, Tadeusz J.
Scott, Thomas W.
Kitron, Uriel
TI Using GPS Technology to Quantify Human Mobility, Dynamic Contacts and
Infectious Disease Dynamics in a Resource-Poor Urban Environment
SO PLOS ONE
LA English
DT Article
ID HUMAN MOVEMENT; DEVELOPING-COUNTRIES; PANDEMIC INFLUENZA; UNITED-STATES;
DENGUE VIRUS; NETWORKS; PATTERNS; TRANSMISSION; CHALLENGES; STRATEGIES
AB Empiric quantification of human mobility patterns is paramount for better urban planning, understanding social network structure and responding to infectious disease threats, especially in light of rapid growth in urbanization and globalization. This need is of particular relevance for developing countries, since they host the majority of the global urban population and are disproportionally affected by the burden of disease. We used Global Positioning System (GPS) data-loggers to track the fine-scale (within city) mobility patterns of 582 residents from two neighborhoods from the city of Iquitos, Peru. We used similar to 2.3 million GPS data-points to quantify age-specific mobility parameters and dynamic co-location networks among all tracked individuals. Geographic space significantly affected human mobility, giving rise to highly local mobility kernels. Most (similar to 80%) movements occurred within 1 km of an individual's home. Potential hourly contacts among individuals were highly irregular and temporally unstructured. Only up to 38% of the tracked participants showed a regular and predictable mobility routine, a sharp contrast to the situation in the developed world. As a case study, we quantified the impact of spatially and temporally unstructured routines on the dynamics of transmission of an influenza-like pathogen within an Iquitos neighborhood. Temporally unstructured daily routines (e.g., not dominated by a single location, such as a workplace, where an individual repeatedly spent significant amount of time) increased an epidemic's final size and effective reproduction number by 20% in comparison to scenarios modeling temporally structured contacts. Our findings provide a mechanistic description of the basic rules that shape human mobility within a resource-poor urban center, and contribute to the understanding of the role of fine-scale patterns of individual movement and co-location in infectious disease dynamics. More generally, this study emphasizes the need for careful consideration of human social interactions when designing infectious disease mitigation strategies, particularly within resource-poor urban environments.
C1 [Vazquez-Prokopec, Gonzalo M.; Bisanzio, Donal; Kitron, Uriel] Emory Univ, Dept Environm Studies, Atlanta, GA 30322 USA.
[Vazquez-Prokopec, Gonzalo M.; Stoddard, Steven T.; Scott, Thomas W.; Kitron, Uriel] NIH, Fogarty Int Ctr, Bethesda, MD 20892 USA.
[Stoddard, Steven T.; Morrison, Amy C.; Scott, Thomas W.] Univ Calif Davis, Dept Entomol, Davis, CA 95616 USA.
[Paz-Soldan, Valerie] Tulane Univ, Sch Publ Hlth & Trop Med, Dept Global Hlth Syst & Dev, New Orleans, LA USA.
[Elder, John P.] San Diego State Univ, Grad Sch Publ Hlth, San Diego, CA 92182 USA.
[Ramirez-Paredes, Jhon; Halsey, Eric S.] US Naval Med Res Unit, Lima, Peru.
[Ramirez-Paredes, Jhon; Halsey, Eric S.] US Naval Med Res Unit, Iquitos, Peru.
[Kochel, Tadeusz J.] USN, Med Res Ctr, Silver Spring, MD USA.
RP Vazquez-Prokopec, GM (reprint author), Emory Univ, Dept Environm Studies, Atlanta, GA 30322 USA.
EM gmvazqu@emory.edu
OI Bisanzio, Donal/0000-0002-7832-2291
FU U.S. National Institutes of Health - National Institute of Allergy and
Infectious Diseases (NIH/NIAID) [R01 AI069341-01]
FX Development of the ideas presented here was assisted by support from the
Research and Policy for Infectious Disease Dynamics (RAPIDD) program of
the Science and Technology Directorate, U.S. Department of Homeland
Security, and the Fogarty International Center, National Institutes of
Health. This research was funded by a grant from the U.S. National
Institutes of Health - National Institute of Allergy and Infectious
Diseases (NIH/NIAID) award number R01 AI069341-01 (to TWS). The funders
had no role in study design, data collection and analysis, decision to
publish, or preparation of the manuscript.
NR 49
TC 34
Z9 34
U1 1
U2 48
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD APR 8
PY 2013
VL 8
IS 4
AR e58802
DI 10.1371/journal.pone.0058802
PG 10
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 130FG
UT WOS:000317898000005
PM 23577059
ER
PT J
AU Furukawa, Y
Dale, JR
AF Furukawa, Yoko
Dale, Jason R.
TI The surface properties of Shewanella putrefaciens 200 and S. oneidensis
MR-1: the effect of pH and terminal electron acceptors
SO GEOCHEMICAL TRANSACTIONS
LA English
DT Article
DE Ohshima; Shewanella; DLVO; Soft particle; Electrophoretic mobility;
Colloid; Floc; Flocculation; Aerobic; Anaerobic; TMAO
ID EXTRACELLULAR POLYMERIC SUBSTANCES; BACTERIAL-CELLS; SOFT PARTICLES;
REDUCTION; SEDIMENTS; ADHESION; STABILIZATION; SUSPENSIONS; EXOPOLYMER;
RELEVANCE
AB Background: We investigated the surface characteristics of two strains of Shewanella sp., S. oneidensis MR-1 and S. putrefaciens 200, that were grown under aerobic conditions as well as under anaerobic conditions with trimethylamine oxide (TMAO) as the electron acceptor. The investigation focused on the experimental determination of electrophoretic mobility (EPM) under a range of pH and ionic strength, as well as by subsequent modeling in which Shewanella cells were considered to be soft particles with water-and ion-permeable outermost layers.
Results: The soft layer of p200 is significantly more highly charged (i.e., more negative) than that of MR-1. The effect of electron acceptor on the soft particle characteristics of Shewanella sp. is complex. The fixed charge density, which is a measure of the deionized and deprotonated functional groups in the soft layer polymers, is slightly greater (i.e., more negative) for aerobically grown p200 than for p200 grown with TMAO. On the other hand, the fixed charge density of aerobically grown MR1 is slightly less than that of p200 grown with TMAO. The effect of pH on the soft particle characteristics is also complex, and does not exhibit a clear pH-dependent trend.
Conclusions: The Shewanella surface characteristics were attributed to the nature of the outermost soft layer, the extracellular polymeric substances (EPS) in case of p200 and lypopolysaccharides (LPS) in case of MR1 which generally lacks EPS. The growth conditions (i.e., aerobic vs. anaerobic TMAO) have an influence on the soft layer characteristics of Shewanella sp. cells. Meanwhile, the clear pH dependency of the mechanical and morphological characteristics of EPS and LPS layers, observed in previous studies through atomic force microscopy, adhesion tests and spectroscopies, cannot be corroborated by the electrohydrodynamics-based soft particle characteristics which does not exhibited a clear pH dependency in this study. While the electrohydrodynamics-based soft-particle model is a useful tool in understanding bacteria's surface properties, it needs to be supplemented with other characterization methods and models (e.g., chemical and micromechanical) in order to comprehensively address all of the surface-related characteristics important in environmental and other aqueous processes.
C1 [Furukawa, Yoko; Dale, Jason R.] USN, Res Lab, Seafloor Sci Branch, Stennis Space Ctr, MS 39529 USA.
RP Furukawa, Y (reprint author), USN, Res Lab, Seafloor Sci Branch, Stennis Space Ctr, MS 39529 USA.
EM yoko.furukawa@nrlssc.navy.mil
FU Office of Naval Research through Naval Research Laboratory
FX This study was funded by the Office of Naval Research through base
funding of the Naval Research Laboratory. NRL Contribution Number
JA-7430-12-13.
NR 46
TC 3
Z9 3
U1 3
U2 49
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1467-4866
J9 GEOCHEM T
JI Geochem. Trans.
PD APR 8
PY 2013
VL 14
AR 3
DI 10.1186/1467-4866-14-3
PG 11
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 131PY
UT WOS:000318007300001
PM 23566080
ER
PT J
AU Adamczyk, L
Agakishiev, G
Aggarwal, MM
Ahammed, Z
Alakhverdyants, AV
Alekseev, I
Alford, J
Anson, CD
Arkhipkin, D
Aschenauer, E
Averichev, GS
Balewski, J
Banerjee, A
Barnovska, Z
Beavis, DR
Bellwied, R
Betancourt, MJ
Betts, RR
Bhasin, A
Bhati, AK
Bichsel, H
Bielcik, J
Bielcikova, J
Bland, LC
Bordyuzhin, IG
Borowski, W
Bouchet, J
Brandin, AV
Brovko, SG
Bruna, E
Bultmann, S
Bunzarov, I
Burton, TP
Butterworth, J
Cai, XZ
Caines, H
Sanchez, MCD
Cebra, D
Cendejas, R
Cervantes, MC
Chaloupka, P
Chang, Z
Chattopadhyay, S
Chen, HF
Chen, JH
Chen, JY
Chen, L
Cheng, J
Cherney, M
Chikanian, A
Christie, W
Chung, P
Chwastowski, J
Codrington, MJM
Corliss, R
Cramer, JG
Crawford, HJ
Cui, X
Das, S
Leyva, AD
De Silva, LC
Debbe, RR
Dedovich, TG
Deng, J
de Souza, RD
Dhamija, S
Didenko, L
Ding, F
Dion, A
Djawotho, P
Dong, X
Drachenberg, JL
Draper, JE
Du, CM
Dunkelberger, LE
Dunlop, JC
Efimov, LG
Elnimr, M
Engelage, J
Eppley, G
Eun, L
Evdokimov, O
Fatemi, R
Fazio, S
Fedorisin, J
Fersch, RG
Filip, P
Finch, E
Fisyak, Y
Gagliardi, CA
Gangadharan, DR
Geurts, F
Gibson, A
Gliske, S
Gorbunov, YN
Grebenyuk, OG
Grosnick, D
Gupta, S
Guryn, W
Haag, B
Hajkova, O
Hamed, A
Han, LX
Harris, JW
Hays-Wehle, JP
Heppelmann, S
Hirsch, A
Hoffmann, GW
Hofman, DJ
Horvat, S
Huang, B
Huang, HZ
Huck, P
Humanic, TJ
Huo, L
Igo, G
Jacobs, WW
Jena, C
Judd, EG
Kabana, S
Kang, K
Kapitan, J
Kauder, K
Ke, HW
Keane, D
Kechechyan, A
Kesich, A
Kikola, DP
Kiryluk, J
Kisel, I
Kisiel, A
Kizka, V
Klein, SR
Koetke, DD
Kollegger, T
Konzer, J
Koralt, I
Koroleva, L
Korsch, W
Kotchenda, L
Kravtsov, P
Krueger, K
Kulakov, I
Kumar, L
Lamont, MAC
Landgraf, JM
LaPointe, S
Lauret, J
Lebedev, A
Lednicky, R
Lee, JH
Leight, W
LeVine, MJ
Li, C
Li, L
Li, W
Li, X
Li, X
Li, Y
Li, ZM
Lima, LM
Lisa, MA
Liu, F
Ljubicic, T
Llope, WJ
Longacre, RS
Lu, Y
Luo, X
Luszczak, A
Ma, GL
Ma, YG
Don, DMMDM
Mahapatra, DP
Majka, R
Mall, OI
Margetis, S
Markert, C
Masui, H
Matis, HS
McDonald, D
McShane, TS
Mioduszewski, S
Mitrovski, MK
Mohammed, Y
Mohanty, B
Mondal, MM
Morozov, B
Munhoz, MG
Mustafa, MK
Naglis, M
Nandi, BK
Nasim, M
Nayak, TK
Nelson, JM
Nogach, LV
Novak, J
Odyniec, G
Ogawa, A
Oh, K
Ohlson, A
Okorokov, V
Oldag, EW
Oliveira, RAN
Olson, D
Ostrowski, P
Pachr, M
Page, BS
Pal, SK
Pan, YX
Pandit, Y
Panebratsev, Y
Pawlak, T
Pawlik, B
Pei, H
Perkins, C
Peryt, W
Pile, P
Planinic, M
Pluta, J
Plyku, D
Poljak, N
Porter, J
Poskanzer, AM
Powell, CB
Pruneau, C
Pruthi, NK
Przybycien, M
Pujahari, PR
Putschke, J
Qiu, H
Raniwala, R
Raniwala, S
Ray, RL
Redwine, R
Reed, R
Riley, CK
Ritter, HG
Roberts, JB
Rogachevskiy, OV
Romero, JL
Ross, JF
Ruan, L
Rusnak, J
Sahoo, NR
Sahu, PK
Sakrejda, I
Salur, S
Sandacz, A
Sandweiss, J
Sangaline, E
Sarkar, A
Schambach, J
Scharenberg, RP
Schmah, AM
Schmidke, B
Schmitz, N
Schuster, TR
Seele, J
Seger, J
Seyboth, P
Shah, N
Shahaliev, E
Shao, M
Sharma, B
Sharma, M
Shi, SS
Shou, QY
Sichtermann, EP
Singaraju, RN
Skoby, MJ
Smirnov, D
Smirnov, N
Solanki, D
Sorensen, P
deSouza, UG
Spinka, HM
Srivastava, B
Stanislaus, TDS
Steadman, SG
Stevens, JR
Stock, R
Strikhanov, M
Stringfellow, B
Suaide, AAP
Suarez, MC
Sumbera, M
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Svirida, DN
Symons, TJM
de Toledo, AS
Takahashi, J
Tang, AH
Tang, Z
Tarini, LH
Tarnowsky, T
Thein, D
Thomas, JH
Tian, J
Timmins, AR
Tlusty, D
Tokarev, M
Trentalange, S
Tribble, RE
Tribedy, P
Trzeciak, BA
Tsai, OD
Turnau, J
Ullrich, T
Underwood, DG
Van Buren, G
van Nieuwenhuizen, G
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Videbaek, F
Viyogi, YP
Vokal, S
Voloshin, SA
Vossen, A
Wada, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, Q
Wang, XL
Wang, Y
Webb, G
Webb, JC
Westfall, GD
Whitten, C
Wieman, H
Wissink, SW
Witt, R
Witzke, W
Wu, YF
Xiao, Z
Xie, W
Xin, K
Xu, H
Xu, N
Xu, QH
Xu, W
Xu, Y
Xu, Z
Xue, L
Yang, Y
Yang, Y
Yepes, P
Yi, Y
Yip, K
Yoo, IK
Zawisza, M
Zbroszczyk, H
Zhang, JB
Zhang, S
Zhang, XP
Zhang, Y
Zhang, ZP
Zhao, F
Zhao, J
Zhong, C
Zhu, X
Zhu, YH
Zoulkarneeva, Y
Zyzak, M
AF Adamczyk, L.
Agakishiev, G.
Aggarwal, M. M.
Ahammed, Z.
Alakhverdyants, A. V.
Alekseev, I.
Alford, J.
Anson, C. D.
Arkhipkin, D.
Aschenauer, E.
Averichev, G. S.
Balewski, J.
Banerjee, A.
Barnovska, Z.
Beavis, D. R.
Bellwied, R.
Betancourt, M. J.
Betts, R. R.
Bhasin, A.
Bhati, A. K.
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Bland, L. C.
Bordyuzhin, I. G.
Borowski, W.
Bouchet, J.
Brandin, A. V.
Brovko, S. G.
Bruna, E.
Bueltmann, S.
Bunzarov, I.
Burton, T. P.
Butterworth, J.
Cai, X. Z.
Caines, H.
Sanchez, M. Calderon de la Barca
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chaloupka, P.
Chang, Z.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Chen, L.
Cheng, J.
Cherney, M.
Chikanian, A.
Christie, W.
Chung, P.
Chwastowski, J.
Codrington, M. J. M.
Corliss, R.
Cramer, J. G.
Crawford, H. J.
Cui, X.
Das, S.
Leyva, A. Davila
De Silva, L. C.
Debbe, R. R.
Dedovich, T. G.
Deng, J.
Derradi de Souza, R.
Dhamija, S.
Didenko, L.
Ding, F.
Dion, A.
Djawotho, P.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, C. M.
Dunkelberger, L. E.
Dunlop, J. C.
Efimov, L. G.
Elnimr, M.
Engelage, J.
Eppley, G.
Eun, L.
Evdokimov, O.
Fatemi, R.
Fazio, S.
Fedorisin, J.
Fersch, R. G.
Filip, P.
Finch, E.
Fisyak, Y.
Gagliardi, C. A.
Gangadharan, D. R.
Geurts, F.
Gibson, A.
Gliske, S.
Gorbunov, Y. N.
Grebenyuk, O. G.
Grosnick, D.
Gupta, S.
Guryn, W.
Haag, B.
Hajkova, O.
Hamed, A.
Han, L-X.
Harris, J. W.
Hays-Wehle, J. P.
Heppelmann, S.
Hirsch, A.
Hoffmann, G. W.
Hofman, D. J.
Horvat, S.
Huang, B.
Huang, H. Z.
Huck, P.
Humanic, T. J.
Huo, L.
Igo, G.
Jacobs, W. W.
Jena, C.
Judd, E. G.
Kabana, S.
Kang, K.
Kapitan, J.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Kesich, A.
Kikola, D. P.
Kiryluk, J.
Kisel, I.
Kisiel, A.
Kizka, V.
Klein, S. R.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Koralt, I.
Koroleva, L.
Korsch, W.
Kotchenda, L.
Kravtsov, P.
Krueger, K.
Kulakov, I.
Kumar, L.
Lamont, M. A. C.
Landgraf, J. M.
LaPointe, S.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, J. H.
Leight, W.
LeVine, M. J.
Li, C.
Li, L.
Li, W.
Li, X.
Li, X.
Li, Y.
Li, Z. M.
Lima, L. M.
Lisa, M. A.
Liu, F.
Ljubicic, T.
Llope, W. J.
Longacre, R. S.
Lu, Y.
Luo, X.
Luszczak, A.
Ma, G. L.
Ma, Y. G.
Don, D. M. M. D. Madagodagettige
Mahapatra, D. P.
Majka, R.
Mall, O. I.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
McDonald, D.
McShane, T. S.
Mioduszewski, S.
Mitrovski, M. K.
Mohammed, Y.
Mohanty, B.
Mondal, M. M.
Morozov, B.
Munhoz, M. G.
Mustafa, M. K.
Naglis, M.
Nandi, B. K.
Nasim, Md.
Nayak, T. K.
Nelson, J. M.
Nogach, L. V.
Novak, J.
Odyniec, G.
Ogawa, A.
Oh, K.
Ohlson, A.
Okorokov, V.
Oldag, E. W.
Oliveira, R. A. N.
Olson, D.
Ostrowski, P.
Pachr, M.
Page, B. S.
Pal, S. K.
Pan, Y. X.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Pawlik, B.
Pei, H.
Perkins, C.
Peryt, W.
Pile, P.
Planinic, M.
Pluta, J.
Plyku, D.
Poljak, N.
Porter, J.
Poskanzer, A. M.
Powell, C. B.
Pruneau, C.
Pruthi, N. K.
Przybycien, M.
Pujahari, P. R.
Putschke, J.
Qiu, H.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Redwine, R.
Reed, R.
Riley, C. K.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Ross, J. F.
Ruan, L.
Rusnak, J.
Sahoo, N. R.
Sahu, P. K.
Sakrejda, I.
Salur, S.
Sandacz, A.
Sandweiss, J.
Sangaline, E.
Sarkar, A.
Schambach, J.
Scharenberg, R. P.
Schmah, A. M.
Schmidke, B.
Schmitz, N.
Schuster, T. R.
Seele, J.
Seger, J.
Seyboth, P.
Shah, N.
Shahaliev, E.
Shao, M.
Sharma, B.
Sharma, M.
Shi, S. S.
Shou, Q. Y.
Sichtermann, E. P.
Singaraju, R. N.
Skoby, M. J.
Smirnov, D.
Smirnov, N.
Solanki, D.
Sorensen, P.
deSouza, U. G.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Steadman, S. G.
Stevens, J. R.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Suaide, A. A. P.
Suarez, M. C.
Sumbera, M.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Svirida, D. N.
Symons, T. J. M.
Szanto de Toledo, A.
Takahashi, J.
Tang, A. H.
Tang, Z.
Tarini, L. H.
Tarnowsky, T.
Thein, D.
Thomas, J. H.
Tian, J.
Timmins, A. R.
Tlusty, D.
Tokarev, M.
Trentalange, S.
Tribble, R. E.
Tribedy, P.
Trzeciak, B. A.
Tsai, O. D.
Turnau, J.
Ullrich, T.
Underwood, D. G.
Van Buren, G.
van Nieuwenhuizen, G.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Vossen, A.
Wada, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, Q.
Wang, X. L.
Wang, Y.
Webb, G.
Webb, J. C.
Westfall, G. D.
Whitten, C., Jr.
Wieman, H.
Wissink, S. W.
Witt, R.
Witzke, W.
Wu, Y. F.
Xiao, Z.
Xie, W.
Xin, K.
Xu, H.
Xu, N.
Xu, Q. H.
Xu, W.
Xu, Y.
Xu, Z.
Xue, L.
Yang, Y.
Yang, Y.
Yepes, P.
Yi, Y.
Yip, K.
Yoo, I-K.
Zawisza, M.
Zbroszczyk, H.
Zhang, J. B.
Zhang, S.
Zhang, X. P.
Zhang, Y.
Zhang, Z. P.
Zhao, F.
Zhao, J.
Zhong, C.
Zhu, X.
Zhu, Y. H.
Zoulkarneeva, Y.
Zyzak, M.
CA STAR Collaboration
TI Experimental studies of di-jets in Au plus Au collisions using angular
correlations with respect to back-to-back leading hadrons
SO PHYSICAL REVIEW C
LA English
DT Article
AB Jet-medium interactions are studied via a multihadron correlation technique ( called "2 + 1"), where a pair of back-to-back hadron triggers with large transverse momentum is used as a proxy for a di-jet. This work extends the previous analysis for nearly symmetric trigger pairs with the highest momentum threshold of trigger hadron of 5 GeV/c with the new calorimeter-based triggers with energy thresholds of up to 10 GeV and above. The distributions of associated hadrons are studied in terms of correlation shapes and per-trigger yields on each trigger side. In contrast with di-hadron correlation results with single triggers, the associated hadron distributions for back-to-back triggers from central Au + Au data at root S-NN = 200 GeV show no strong modifications compared to d + Au data at the same energy. An imbalance in the total transverse momentum between hadrons attributed to the near-side and away-side of jetlike peaks is observed. The relative imbalance in the Au + Au measurement with respect to d + Au reference is found to increase with the asymmetry of the trigger pair, consistent with the expectation from medium-induced energy-loss effects. In addition, this relative total transverse momentum imbalance is found to decrease for softer associated hadrons. Such evolution indicates that the energy missing at higher associated momenta is converted into softer hadrons. DOI:10.1103/PhysRevC.87.044903
C1 [Adamczyk, L.; Przybycien, M.] AGH Univ Sci & Technol, Krakow, Poland.
[Gliske, S.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Nelson, J. M.] Univ Birmingham, Birmingham, W Midlands, England.
[Arkhipkin, D.; Aschenauer, E.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; Didenko, L.; Dion, A.; Dunlop, J. C.; Fazio, S.; Fisyak, Y.; Guryn, W.; Huang, B.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Mitrovski, M. K.; Ogawa, A.; Pile, P.; Ruan, L.; Schmidke, B.; Smirnov, D.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Wang, H.; Webb, J. C.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Crawford, H. J.; Engelage, J.; Judd, E. G.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Brovko, S. G.; Sanchez, M. Calderon de la Barca; Cebra, D.; Ding, F.; Draper, J. E.; Haag, B.; Kesich, A.; Mall, O. I.; Reed, R.; Romero, J. L.; Sangaline, E.] Univ Calif Davis, Davis, CA 95616 USA.
[Cendejas, R.; Dunkelberger, L. E.; Huang, H. Z.; Igo, G.; Pan, Y. X.; Shah, N.; Trentalange, S.; Tsai, O. D.; Wang, G.; Whitten, C., Jr.; Xu, W.; Zhao, F.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[Derradi de Souza, R.; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil.
[Betts, R. R.; Evdokimov, O.; Hofman, D. J.; Kauder, K.; Pei, H.; Suarez, M. C.] Univ Illinois, Chicago, IL 60607 USA.
[Chwastowski, J.; Luszczak, A.] Cracow Univ Technol, Krakow, Poland.
[Cherney, M.; Gorbunov, Y. N.; Don, D. M. M. D. Madagodagettige; McShane, T. S.; Ross, J. F.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Chaloupka, P.; Hajkova, O.; Pachr, M.] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague, Czech Republic.
[Barnovska, Z.; Bielcikova, J.; Chung, P.; Kapitan, J.; Rusnak, J.; Sumbera, M.; Tlusty, D.] Acad Sci Czech Republic, Inst Nucl Phys, CZ-25068 Rez, Czech Republic.
[Kollegger, T.; Schuster, T. R.; Stock, R.] Goethe Univ Frankfurt, D-60054 Frankfurt, Germany.
[Das, S.; Mahapatra, D. P.; Sahu, P. K.] Inst Phys, Bhubaneswar 751005, Orissa, India.
[Nandi, B. K.; Pujahari, P. R.; Sarkar, A.; Varma, R.] Indian Inst Technol, Mumbai 400076, Maharashtra, India.
[Dhamija, S.; Jacobs, W. W.; Page, B. S.; Skoby, M. J.; Stevens, J. R.; Vossen, A.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA.
[Alekseev, I.; Bordyuzhin, I. G.; Koroleva, L.; Morozov, B.; Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow, Russia.
[Bhasin, A.; Gupta, S.] Univ Jammu, Jammu 180001, India.
[Agakishiev, G.; Alakhverdyants, A. V.; Averichev, G. S.; Bunzarov, I.; Dedovich, T. G.; Efimov, L. G.; Fedorisin, J.; Filip, P.; Kechechyan, A.; Kizka, V.; Lednicky, R.; Panebratsev, Y.; Rogachevskiy, O. V.; Shahaliev, E.; Tokarev, M.; Vokal, S.; Zoulkarneeva, Y.] Joint Inst Nucl Res, Dubna 141980, Russia.
[Alford, J.; Bouchet, J.; Keane, D.; Kumar, L.; Margetis, S.; Pandit, Y.; Vanfossen, J. A., Jr.] Kent State Univ, Kent, OH 44242 USA.
[Fatemi, R.; Fersch, R. G.; Korsch, W.; Webb, G.; Witzke, W.] Univ Kentucky, Lexington, KY 40506 USA.
[Du, C. M.; Sun, Z.; Wang, J. S.; Xu, H.; Yang, Y.] Inst Modern Phys, Lanzhou, Peoples R China.
[Dong, X.; Eun, L.; Grebenyuk, O. G.; Kiryluk, J.; Kisel, I.; Klein, S. R.; Kulakov, I.; Masui, H.; Matis, H. S.; Naglis, M.; Odyniec, G.; Olson, D.; Porter, J.; Poskanzer, A. M.; Powell, C. B.; Qiu, H.; Ritter, H. G.; Sakrejda, I.; Salur, S.; Schmah, A. M.; Sichtermann, E. P.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Wieman, H.; Xu, N.; Zyzak, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Balewski, J.; Betancourt, M. J.; Corliss, R.; Hays-Wehle, J. P.; Leight, W.; Redwine, R.; Seele, J.; Steadman, S. G.; van Nieuwenhuizen, G.] MIT, Cambridge, MA 02139 USA.
[Schmitz, N.; Seyboth, P.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Novak, J.; Tarnowsky, T.; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA.
[Brandin, A. V.; Kotchenda, L.; Kravtsov, P.; Okorokov, V.; Strikhanov, M.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Jena, C.; Mohanty, B.] Natl Inst Sci & Educ & Res, Bhubaneswar 751005, Orissa, India.
[Anson, C. D.; Gangadharan, D. R.; Humanic, T. J.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA.
[Bueltmann, S.; Koralt, I.; Plyku, D.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Pawlik, B.; Turnau, J.] Inst Nucl Phys PAN, Krakow, Poland.
[Aggarwal, M. M.; Bhati, A. K.; Pruthi, N. K.; Sharma, B.] Panjab Univ, Chandigarh 160014, India.
[Heppelmann, S.; Oh, K.] Penn State Univ, University Pk, PA 16802 USA.
[Nogach, L. V.] Inst High Energy Phys, Protvino, Russia.
[Hirsch, A.; Kikola, D. P.; Konzer, J.; Li, X.; Mustafa, M. K.; Scharenberg, R. P.; Srivastava, B.; Stringfellow, B.; Wang, F.; Wang, Q.; Xie, W.; Yi, Y.] Purdue Univ, W Lafayette, IN 47907 USA.
[Yoo, I-K.] Pusan Natl Univ, Pusan 609735, South Korea.
[Raniwala, R.; Raniwala, S.; Solanki, D.] Univ Rajasthan, Jaipur 302004, Rajasthan, India.
[Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W. J.; McDonald, D.; Roberts, J. B.; Xin, K.; Yepes, P.] Rice Univ, Houston, TX 77251 USA.
[Lima, L. M.; Munhoz, M. G.; Oliveira, R. A. N.; deSouza, U. G.; Suaide, A. A. P.; Szanto de Toledo, A.] Univ Sao Paulo, Sao Paulo, Brazil.
[Chen, H. F.; Cui, X.; Li, C.; Lu, Y.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Zhang, Y.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Deng, J.; Xu, Q. H.] Shandong Univ, Jinan 250100, Shandong, Peoples R China.
[Cai, X. Z.; Chen, J. H.; Han, L-X.; Li, W.; Ma, G. L.; Ma, Y. G.; Shou, Q. Y.; Tian, J.; Xue, L.; Zhang, S.; Zhao, J.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Borowski, W.; Kabana, S.] SUBATECH, Nantes, France.
[Li, X.; Surrow, B.] Temple Univ, Philadelphia, PA 19122 USA.
[Cervantes, M. C.; Chang, Z.; Codrington, M. J. M.; Djawotho, P.; Drachenberg, J. L.; Gagliardi, C. A.; Hamed, A.; Huo, L.; Mioduszewski, S.; Mohammed, Y.; Mondal, M. M.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.
[Leyva, A. Davila; Hoffmann, G. W.; Li, L.; Markert, C.; Oldag, E. W.; Ray, R. L.; Schambach, J.; Thein, D.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA.
[Bellwied, R.; De Silva, L. C.; Timmins, A. R.] Univ Houston, Houston, TX 77204 USA.
[Cheng, J.; Kang, K.; Li, Y.; Wang, Y.; Xiao, Z.; Zhang, X. P.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China.
[Witt, R.] USN Acad, Annapolis, MD 21402 USA.
[Gibson, A.; Grosnick, D.; Koetke, D. D.; Stanislaus, T. D. S.] Valparaiso Univ, Valparaiso, IN 46383 USA.
[Ahammed, Z.; Banerjee, A.; Chattopadhyay, S.; Nasim, Md.; Nayak, T. K.; Pal, S. K.; Sahoo, N. R.; Singaraju, R. N.; Tribedy, P.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata 700064, India.
[Kisiel, A.; Ostrowski, P.; Pawlak, T.; Peryt, W.; Pluta, J.; Sandacz, A.; Trzeciak, B. A.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Bichsel, H.; Cramer, J. G.] Univ Washington, Seattle, WA 98195 USA.
[Elnimr, M.; LaPointe, S.; Pruneau, C.; Putschke, J.; Sharma, M.; Tarini, L. H.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.
[Bruna, E.; Caines, H.; Chikanian, A.; Finch, E.; Harris, J. W.; Horvat, S.; Majka, R.; Ohlson, A.; Riley, C. K.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA.
[Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia.
RP Adamczyk, L (reprint author), AGH Univ Sci & Technol, Krakow, Poland.
RI XIAO, Zhigang/C-3788-2015; Aparecido Negrao de Oliveira,
Renato/G-9133-2015; Bruna, Elena/C-4939-2014; Chaloupka,
Petr/E-5965-2012; Huang, Bingchu/H-6343-2015; Derradi de Souza,
Rafael/M-4791-2013; Suaide, Alexandre/L-6239-2016; Xin,
Kefeng/O-9195-2016; Svirida, Dmitry/R-4909-2016; Inst. of Physics, Gleb
Wataghin/A-9780-2017; Okorokov, Vitaly/C-4800-2017; Ma,
Yu-Gang/M-8122-2013; Takahashi, Jun/B-2946-2012; Fazio, Salvatore
/G-5156-2010; Yang, Yanyun/B-9485-2014; Rusnak, Jan/G-8462-2014; Xue,
Liang/F-8077-2013; Voloshin, Sergei/I-4122-2013; Pandit,
Yadav/I-2170-2013; Lednicky, Richard/K-4164-2013; Bielcikova,
Jana/G-9342-2014; Alekseev, Igor/J-8070-2014; Sumbera,
Michal/O-7497-2014; Strikhanov, Mikhail/P-7393-2014; Xu,
Wenqin/H-7553-2014
OI Sorensen, Paul/0000-0001-5056-9391; Thomas, James/0000-0002-6256-4536;
Bruna, Elena/0000-0001-5427-1461; Huang, Bingchu/0000-0002-3253-3210;
Derradi de Souza, Rafael/0000-0002-2084-7001; Suaide,
Alexandre/0000-0003-2847-6556; Xin, Kefeng/0000-0003-4853-9219;
Okorokov, Vitaly/0000-0002-7162-5345; Ma, Yu-Gang/0000-0002-0233-9900;
Takahashi, Jun/0000-0002-4091-1779; Yang, Yanyun/0000-0002-5982-1706;
Xue, Liang/0000-0002-2321-9019; Pandit, Yadav/0000-0003-2809-7943;
Alekseev, Igor/0000-0003-3358-9635; Sumbera, Michal/0000-0002-0639-7323;
Strikhanov, Mikhail/0000-0003-2586-0405; Xu, Wenqin/0000-0002-5976-4991
FU office of NP US DOE Office of Science; office of HEP US DOE Office of
Science; US NSF; Sloan Foundation; CNRS/IN2P3; FAPESP CNPq of Brazil;
Ministry of Education and Science of the Russian Federation; NNSFC of
China; CAS of China; MoST of China; MoE of China; GA of the Czech
Republic; MSMT of the Czech Republic; FOM of the Netherlands; NWO of the
Netherlands; DAE of India; DST of India; CSIR of India; Polish Ministry
of Science and Higher Education; National Research Foundation
[NRF-2012004024]; Ministry of Science, Education, and Sports of the
Republic of Croatia; RosAtom of Russia
FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at
LBNL, and the Open Science Grid consortium for providing resources and
support. This work was supported in part by the offices of NP and HEP
within the US DOE Office of Science, the US NSF, the Sloan Foundation,
CNRS/IN2P3; FAPESP CNPq of Brazil; Ministry of Education and Science of
the Russian Federation; NNSFC, CAS, MoST, and MoE of China; GA and MSMT
of the Czech Republic; FOM and NWO of the Netherlands; DAE, DST, and
CSIR of India; Polish Ministry of Science and Higher Education; National
Research Foundation (NRF-2012004024), Ministry of Science, Education,
and Sports of the Republic of Croatia; and RosAtom of Russia.
NR 28
TC 2
Z9 2
U1 1
U2 57
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9985
EI 2469-9993
J9 PHYS REV C
JI Phys. Rev. C
PD APR 8
PY 2013
VL 87
IS 4
AR 044903
DI 10.1103/PhysRevC.87.044903
PG 13
WC Physics, Nuclear
SC Physics
GA 120TP
UT WOS:000317196200007
ER
PT J
AU Chaloux, BL
Ricks-Laskoski, HL
Deese, SM
Hickner, MA
AF Chaloux, Brian L.
Ricks-Laskoski, Holly L.
Deese, Stephen M.
Hickner, Michael A.
TI Styrenic, proton conducting 1H-tetrazole polymers
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
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DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
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CL New Orleans, LA
SP Amer Chem Soc
C1 [Chaloux, Brian L.; Ricks-Laskoski, Holly L.; Deese, Stephen M.] US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Chaloux, Brian L.; Hickner, Michael A.] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA.
EM brian.chaloux@nrl.navy.mil
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PU AMER CHEMICAL SOC
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PD APR 7
PY 2013
VL 245
MA 672-ORGN
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SC Chemistry
GA 216SF
UT WOS:000324303603334
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PT J
AU Coneski, PN
Fulmer, PA
Wynne, JH
AF Coneski, Peter N.
Fulmer, Preston A.
Wynne, James H.
TI Morphological influence on the bactericidal efficacy of polyurethanes
with tethered quaternary ammonium salts: The consequence of
electrospinning
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Coneski, Peter N.; Fulmer, Preston A.; Wynne, James H.] US Naval Res Lab, Dept Chem, Washington, DC 20375 USA.
EM peter.coneski.ctr@nrl.navy.mil
RI Fulmer, Preston/L-7702-2014
OI Fulmer, Preston/0000-0002-2981-576X
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PU AMER CHEMICAL SOC
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PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
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PD APR 7
PY 2013
VL 245
MA 264-POLY
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WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303604758
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PT J
AU Coughlin, MM
Geuther, ME
Kelly, CK
Kinkaid, KA
MacArthur, AHR
Lin, S
AF Coughlin, Mary M.
Geuther, Meagan E.
Kelly, Colin K.
Kinkaid, Kathleen A.
MacArthur, Amy H. Roy
Lin, Shirley
TI Microwave-assisted copper-catalyzed reactions of aryl halides via
concurrent tandem catalysis
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
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DT Meeting Abstract
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C1 [Coughlin, Mary M.; Geuther, Meagan E.; Kelly, Colin K.; Kinkaid, Kathleen A.; MacArthur, Amy H. Roy; Lin, Shirley] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
EM lin@usna.edu
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PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
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PD APR 7
PY 2013
VL 245
MA 17-INOR
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WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303601213
ER
PT J
AU Crutcher, RM
Atwood, RE
Urban, JJ
AF Crutcher, Robert M.
Atwood, Rex E.
Urban, Joseph J.
TI Conformational analysis of fluoroalkene tripeptide analog mimics: A
computational study of beta-turn formation
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
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C1 [Crutcher, Robert M.; Atwood, Rex E.; Urban, Joseph J.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
EM m131362@usna.edu
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PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
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PD APR 7
PY 2013
VL 245
MA 623-ORGN
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GA 216SF
UT WOS:000324303603287
ER
PT J
AU Darby, JB
Heuer, WB
AF Darby, Jason B.
Heuer, William B.
TI Synthesis and characterization of Ru(II) complexes with substituted
oxyquinolate ligands
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CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
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C1 [Darby, Jason B.; Heuer, William B.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
EM heuer@usna.edu
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PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
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PD APR 7
PY 2013
VL 245
MA 301-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303601352
ER
PT J
AU Furukawa, Y
Reed, AH
Zhang, GP
AF Furukawa, Yoko
Reed, Allen H.
Zhang, Guoping
TI Influence of organic matter and salinity on flocculation of
montmorillonite: Population balance equation (PBE) modeling
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C1 [Furukawa, Yoko; Reed, Allen H.] Naval Res Lab, Seafloor Sci Branch, Stennis Space Ctr, MS 39529 USA.
[Zhang, Guoping] Louisiana State Univ, Dept Civil & Environm Engn, Baton Rouge, LA 70803 USA.
EM yoko.furukawa@nrlssc.navy.mil
NR 0
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PU AMER CHEMICAL SOC
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PD APR 7
PY 2013
VL 245
MA 182-GEOC
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WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303600429
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PT J
AU Guerard, F
Lee, YS
Tripier, R
Szajek, LP
Deschamps, JR
Brechbiel, MW
AF Guerard, Francois
Lee, Yong-Sok
Tripier, Raphael
Szajek, Lawrence P.
Deschamps, Jeffrey R.
Brechbiel, Martin W.
TI Complexation chemistry of Zr(IV) with hydroxamates: Crystallography,
density functional theory, and potentiometry as new tools for the
development of chelators for Zr-89 in nuclear medicine
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
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C1 [Guerard, Francois; Brechbiel, Martin W.] NCI, Radioimmune & Inorgan Chem Sect, Radiat Oncol Branch, Bethesda, MD 20892 USA.
[Lee, Yong-Sok] NIH, Ctr Mol Modeling, Ctr Informat Technol, Bethesda, MD 20892 USA.
[Tripier, Raphael] Univ Brest, CNRS, Lab Chim Electrochim Mol & Chim Analyt, UMR 6521, Brest, France.
[Szajek, Lawrence P.] NIH, Positron Emiss Tomog Dept, Warren Grant Magnuson Clin Ctr, Bethesda, MD 20892 USA.
[Deschamps, Jeffrey R.] Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
EM guerardf@mail.nih.gov
NR 0
TC 0
Z9 0
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PU AMER CHEMICAL SOC
PI WASHINGTON
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PD APR 7
PY 2013
VL 245
MA 1089-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303600826
ER
PT J
AU Heuer, WB
Pearson, WH
AF Heuer, William B.
Pearson, Wayne H.
TI Photo-redox activity in novel ligand-bridged heterobimetallic complexes
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C1 [Heuer, William B.; Pearson, Wayne H.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
EM heuer@usna.edu
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PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
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PD APR 7
PY 2013
VL 245
MA 803-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303601890
ER
PT J
AU Irvin, JA
Carberry, JR
Iszard, Z
Currie, DA
Theodoropoulou, N
Irvin, DJ
Stenger-Smith, JD
Yandek, GR
AF Irvin, Jennifer A.
Carberry, Jamie R.
Iszard, Zachary
Currie, Daniel A.
Theodoropoulou, Nikoleta
Irvin, David J.
Stenger-Smith, John D.
Yandek, Gregory R.
TI Tailoring porosity in soluble conducting polymers to optimize
electroactivity
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
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DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Irvin, Jennifer A.; Carberry, Jamie R.; Iszard, Zachary] Texas State Univ San Marcos, Dept Chem & Biochem, San Marcos, TX 78666 USA.
[Currie, Daniel A.; Theodoropoulou, Nikoleta] Texas State Univ San Marcos, Dept Phys, San Marcos, TX 78666 USA.
[Irvin, David J.] Syst & Mat Res Corp, Austin, TX 78756 USA.
[Stenger-Smith, John D.] Naval Air Warfare Ctr, Res Dept, Weap Div, China Lake, CA 93555 USA.
[Yandek, Gregory R.] Air Force Res Lab, Prop Directorate, Edwards AFB, CA 93524 USA.
EM ji12@txstate.edu
RI Irvin, Jennifer/C-7968-2013
OI Irvin, Jennifer/0000-0003-3500-8419
NR 0
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PU AMER CHEMICAL SOC
PI WASHINGTON
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PD APR 7
PY 2013
VL 245
MA 491-PMSE
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303604441
ER
PT J
AU Ji, SZ
Aldridge, J
Ponting, M
Lepkowicz, RS
Rosenberg, A
Flynn, R
Beadie, G
Baer, E
AF Ji, Shanzuo
Aldridge, James
Ponting, Mike
Lepkowicz, Richard S.
Rosenberg, Armand
Flynn, Richard
Beadie, Guy
Baer, Eric
TI Bio-inspired gradient refractive index (GRIN) human eye lens
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CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Ji, Shanzuo; Aldridge, James; Ponting, Mike; Baer, Eric] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA.
[Ponting, Mike] PolymerPlus LLC, Valley View, OH 44125 USA.
[Lepkowicz, Richard S.] Rose Hulman Inst Technol, Dept Phys & Opt Engn, Terre Haute, IN 47803 USA.
[Rosenberg, Armand; Flynn, Richard; Beadie, Guy] Naval Res Lab, Code 5616, Washington, DC 20375 USA.
EM sxj196@case.edu
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PY 2013
VL 245
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WC Chemistry, Multidisciplinary
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PT J
AU Mackey, M
Flandin, L
Zhu, L
Wolak, MA
Shirk, JS
Baer, E
AF Mackey, Matthew
Flandin, Lionel
Zhu, Lei
Wolak, Mason A.
Shirk, James S.
Baer, Eric
TI Dielectric properties of micro and nanolayered PC/PVDF films for
capacitor applications
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Mackey, Matthew; Zhu, Lei; Baer, Eric] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA.
[Wolak, Mason A.; Shirk, James S.] US Naval Res Lab, Washington, DC 44106 USA.
[Flandin, Lionel] Univ Savoie, Le Bourget Du Lac, Lac, France.
EM mem76@case.edu
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 269-PMSE
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303604210
ER
PT J
AU Nita, R
Trammell, SA
Moore, M
Zabetakis, D
Chang, EL
Knight, DA
AF Nita, Rafaela
Trammell, Scott A.
Moore, Martin
Zabetakis, Dan
Chang, Eddie L.
Knight, D. Andrew
TI Laser-induced enhancement of homogeneous catalysis: Accelerating the
initial rate of phosphate ester hydrolysis using monolayer protected 10
nm gold nanoparticles capped with a copper(II) bipyridine complex
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Nita, Rafaela; Knight, D. Andrew] Florida Inst Technol, Dept Chem, Melbourne, FL 32901 USA.
[Trammell, Scott A.; Moore, Martin; Zabetakis, Dan; Chang, Eddie L.] Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
EM aknight@fit.edu
NR 0
TC 0
Z9 0
U1 0
U2 4
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 1386-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303601144
ER
PT J
AU O'Sullivan, DW
Silwal, IKC
McNeill, AS
Treadaway, VA
Heikes, BG
AF O'Sullivan, Daniel W.
Silwal, Indira K. C.
McNeill, Ashley S.
Treadaway, Victoria A.
Heikes, Brian G.
TI Peroxide measurements in the Deep Convective Clouds and Chemistry
campaign using multi-reagent ion chemical ionization mass spectrometry
and ab initio calculations
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [O'Sullivan, Daniel W.; Silwal, Indira K. C.] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
[McNeill, Ashley S.; Treadaway, Victoria A.; Heikes, Brian G.] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA.
EM ashley_mcneill@my.uri.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 316-ENVR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303600154
ER
PT J
AU Reed, AH
Zhang, GG
Yin, H
Tan, XL
Furukawa, Y
AF Reed, Allen H.
Zhang, Guoping Gregg
Yin, Hang
Tan, Xiaoling
Furukawa, Yoko
TI Transport of cohesive sediment aggregates ("flocs") in estuarine
environments
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Reed, Allen H.; Furukawa, Yoko] Naval Res Lab, Seafloor Sci Branch, Stennis Space Ctr, MS 39529 USA.
[Zhang, Guoping Gregg; Yin, Hang; Tan, Xiaoling] Louisiana State Univ, Dept Civil & Environm Engn, Baton Rouge, LA 70803 USA.
EM allen.reed@nrlssc.navy.mil
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 54-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303600499
ER
PT J
AU Ricks-Laskoski, HL
Deese, SM
Laskoski, M
Chaloux, BL
AF Ricks-Laskoski, Holly L.
Deese, Stephen M.
Laskoski, Matthew
Chaloux, Brian L.
TI C-substituted, 1H-tetrazole coated rigid-rods: Model for andydrous
proton transport
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Ricks-Laskoski, Holly L.; Deese, Stephen M.; Laskoski, Matthew; Chaloux, Brian L.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
EM holly.ricks-laskoski@nrl.navy.mil
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 915-ORGN
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303603562
ER
PT J
AU Rolison, DR
Chervin, CN
Parker, JF
Nelson, ES
Long, JW
AF Rolison, Debra R.
Chervin, Christopher N.
Parker, Joseph F.
Nelson, Eric S.
Long, Jeffrey W.
TI Susan Kauzlarich-a breath of fresh air ( plus zinc)
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Rolison, Debra R.; Chervin, Christopher N.; Parker, Joseph F.; Nelson, Eric S.; Long, Jeffrey W.] US Naval Res Lab, Surface Chem Branch, Washington, DC 20375 USA.
EM rolison@nrl.navy.mil
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 136-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303601118
ER
PT J
AU Roy, LE
Klug, CA
Wellons, MS
AF Roy, Lindsay E.
Klug, Christopher A.
Wellons, Matthew S.
TI First-principles prediction of solid-state NMR parameters in
fluorine-containing inorganic actinide complexes
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Roy, Lindsay E.; Wellons, Matthew S.] Savannah River Natl Lab, Aiken, SC 29808 USA.
[Klug, Christopher A.] Naval Res Lab, Washington, DC 20375 USA.
EM lindsay.roy@srnl.doe.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 224-NUCL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303602616
ER
PT J
AU Simmers, C
His, JH
van Hoek, ML
Chang, EL
Knight, DA
AF Simmers, Christa
His, Joseph H.
van Hoek, Monique L.
Chang, Eddie L.
Knight, D. Andrew
TI Synergistic effects of hexaamminecobalt(III) with antibiotics against
Escherichia coli
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Simmers, Christa; Knight, D. Andrew] Florida Inst Technol, Dept Chem, Melbourne, FL 32901 USA.
[His, Joseph H.; van Hoek, Monique L.] George Mason Univ, Dept Mol & Microbiol, Manassas, VA USA.
[Chang, Eddie L.] Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
EM aknight@fit.edu
NR 0
TC 0
Z9 0
U1 6
U2 17
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 1153-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303600894
ER
PT J
AU Smith, JP
Reed, AH
AF Smith, Joseph P.
Reed, Allen H.
TI Uncertainties in floc sizes (nm to mm) from the Pearl River Estuary due
to different analytical methods
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Smith, Joseph P.] US Naval Acad, Dept Oceanog, Annapolis, MD 21402 USA.
[Reed, Allen H.] Naval Res Lab, Seafloor Sci Branch, Stennis Space Ctr, MS 39529 USA.
EM jpsmith@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 180-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303600427
ER
PT J
AU Tan, XL
Reed, AH
Furukawa, Y
Zhang, GP
AF Tan, Xiaoling
Reed, Allen H.
Furukawa, Yoko
Zhang, Guoping
TI Microstructure of clay-exopolymer flocs
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Tan, Xiaoling; Zhang, Guoping] Louisiana State Univ, Dept Civil & Environm Engn, Baton Rouge, LA 70803 USA.
[Reed, Allen H.; Furukawa, Yoko] Naval Res Lab, Seafloor Sci Branch, Stennis Space Ctr, MS 39529 USA.
EM xtan3@lsu.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 56-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303600501
ER
PT J
AU Viner, V
Viner, G
Jee, E
Pojman, JA
AF Viner, Veronika
Viner, Gloria
Jee, Elizabeth
Pojman, John A.
TI Impact of low melt monomers and nanoparticles on binary cyanate ester
composites
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Viner, Veronika; Viner, Gloria] China Lake Naval Air Warfare Ctr, Dept Res, Weap Div, China Lake, CA 93555 USA.
[Jee, Elizabeth; Pojman, John A.] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA.
EM g_viner@yahoo.com
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 587-PMSE
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303604537
ER
PT J
AU Whitaker, CM
Hickey, R
Watson, RE
AF Whitaker, Craig M.
Hickey, Ryan
Watson, Rebecca E.
TI End group effects on the curing temperature of liquid crystalline
thermosets
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Whitaker, Craig M.; Hickey, Ryan; Watson, Rebecca E.] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
EM m133036@usna.edu; m137140@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 408-POLY
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303604905
ER
PT J
AU Wolak, MA
Shirk, JS
Mackey, M
Carr, J
Baer, E
AF Wolak, Mason A.
Shirk, James S.
Mackey, Matthew
Carr, Joel
Baer, Eric
TI Effects of biaxial orientation on the dielectric and electromechanical
properties of multilayer PET/PVDF-TFE films
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Wolak, Mason A.; Shirk, James S.] US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
[Mackey, Matthew; Carr, Joel; Baer, Eric] Case Western Reserve Univ, Cleveland, OH 44106 USA.
EM mason.wolak@nrl.navy.mil
NR 0
TC 0
Z9 0
U1 1
U2 5
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 15-PMSE
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303604085
ER
PT J
AU Yin, H
Reed, AH
Furukawa, Y
Zhang, GP
AF Yin, Hang
Reed, Allen H.
Furukawa, Yoko
Zhang, Guoping
TI Yield shear strength of natural marine flocs determined by nano
compression testing
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Spring Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Yin, Hang; Zhang, Guoping] Louisiana State Univ, Dept Civil & Environm Engn, Baton Rouge, LA 70803 USA.
[Reed, Allen H.; Furukawa, Yoko] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
EM hyin5@lsu.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 181-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SF
UT WOS:000324303600428
ER
PT J
AU Brenner, A
Haverhals, LM
Sweely, KD
Foley, MP
Brown, EK
De Long, HC
Trulove, PC
AF Brenner, Aimee
Haverhals, Luke M.
Sweely, Kurt D.
Foley, Matthew P.
Brown, Eva K.
De Long, Hugh C.
Trulove, Paul C.
TI Microscopic characterizations of fiber welded biocomposite materials
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Brenner, Aimee; Haverhals, Luke M.; Sweely, Kurt D.; Foley, Matthew P.; Brown, Eva K.; Trulove, Paul C.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
[De Long, Hugh C.] Air Force Off Sci Res, Div Math Informat & Life Sci, Arlington, VA 22203 USA.
EM haverhal@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 1335-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851303108
ER
PT J
AU Drab, DM
Hardy, DR
Ananth, R
Willauer, HD
AF Drab, David M.
Hardy, Dennis R.
Ananth, Ramagopal
Willauer, Heather D.
TI Reactor optimization and scale-up for the sustainable synthesis of
hydrocarbons from carbon dioxide: Strides towards sea-based fuel
production
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Drab, David M.] US Naval Res Lab, Div Mat Sci & Technol, NRC Postdoctoral Res Associate, Washington, DC 20375 USA.
[Hardy, Dennis R.] Nova Res Inc, Alexandria, VA 22308 USA.
[Ananth, Ramagopal] US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Willauer, Heather D.] US Naval Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
EM david.drab.ctr@nrl.navy.mil
NR 0
TC 0
Z9 0
U1 0
U2 7
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 718-ENFL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851305122
ER
PT J
AU Eberhart, N
Divoky, S
Smith, V
AF Eberhart, Nicholas
Divoky, Sean
Smith, Virginia
TI Analysis of the mutagenic and biophysical characteristics of
nanoparticles in common consumer products
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Eberhart, Nicholas; Divoky, Sean; Smith, Virginia] US Naval Acad, Dept Chem, Annapolis, MD 21401 USA.
EM m131923@usna.edu; m131734@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 349-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851302163
ER
PT J
AU Emerling, AD
Kedziora, GS
Urban, JJ
AF Emerling, Alec D.
Kedziora, Gary S.
Urban, Joseph J.
TI Conformational influence of fluorine substitution on peptides derived
from b-amino acids
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Emerling, Alec D.; Urban, Joseph J.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
[Kedziora, Gary S.] High Performance Technol, Wright Patterson AFB, OH 45433 USA.
EM m131992@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 533-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851302338
ER
PT J
AU Emerling, EW
Kedziora, GS
Urban, JJ
AF Emerling, Eric W.
Kedziora, Gary S.
Urban, Joseph J.
TI Conformational preferences for C-F bonds adjacent to carbonyls
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Emerling, Eric W.; Urban, Joseph J.] US Naval Acad, Annapolis, MD 21402 USA.
[Kedziora, Gary S.] High Performance Technol, Wright Patterson AFB, OH 45433 USA.
EM m131998@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 534-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851302339
ER
PT J
AU Harrell, JE
Gutteridge, CE
Sadowski, BW
O'Neil, MT
Lee, P
AF Harrell, Jonathan E.
Gutteridge, Clare E.
Sadowski, Brett W.
O'Neil, Michael T.
Lee, Patricia
TI Preparation novel compounds with activity against the malaria parasite,
Plasmodium falciparum
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Harrell, Jonathan E.; Gutteridge, Clare E.; Sadowski, Brett W.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
[O'Neil, Michael T.; Lee, Patricia] Walter Reed Army Inst Res, Div Expt Therapeut, Silver Spring, MD 20910 USA.
EM gutterid@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 807-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851302604
ER
PT J
AU Kersey, AJ
O'Sullivan, DW
Prak, DJL
AF Kersey, Alec J.
O'Sullivan, Daniel W.
Prak, Dianne J. Luning
TI Determination of products formed by the photolysis of 2,4-dinitrotoluene
and 2,6-dinitrotoluene in solutions containing dissolved ionic compounds
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Kersey, Alec J.; O'Sullivan, Daniel W.; Prak, Dianne J. Luning] US Naval Acad, Annapolis, MD 21402 USA.
EM aleckersey@gmail.com
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 578-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851302382
ER
PT J
AU Mannix, AM
Smith, VS
AF Mannix, Ashley M.
Smith, Virginia S.
TI Quantitative analysis of metal ion, chlorophyll, and antioxidant
activity in senescing Ginkgo biloba leaves
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Mannix, Ashley M.; Smith, Virginia S.] US Naval Acad, Dept Biochem, Annapolis, MD 21412 USA.
EM ashley.mannix@email.usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 428-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851302235
ER
PT J
AU Meidus, SC
Schroeder, MJ
AF Meidus, Stephen C.
Schroeder, Maria J.
TI Fermentation experiments to spark college student interest
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Meidus, Stephen C.; Schroeder, Maria J.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
EM m134524@usna.edu
NR 0
TC 0
Z9 0
U1 4
U2 4
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 466-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851302272
ER
PT J
AU Milewski, EA
Prak, DJL
AF Milewski, Elizabeth A.
Prak, Dianne J. Luning
TI Determination of the impact of dissolved inorganic and organic
substances on the photolysis of munitions constituents
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Milewski, Elizabeth A.; Prak, Dianne J. Luning] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
EM m134578@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 579-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851302383
ER
PT J
AU Moore, A
Peretich, M
Eldridge, G
Larsen, R
AF Moore, Alexandra
Peretich, Michael
Eldridge, Geoffrey
Larsen, Randolph, III
TI Characterization of aromatic compounds in naval aviation jet fuels
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Moore, Alexandra; Larsen, Randolph, III] St Marys Coll Maryland, Dept Chem & Biochem, St Marys City, MD 20686 USA.
[Peretich, Michael; Eldridge, Geoffrey] United States Navy, Dept Naval Air Warfare Ctr, Air Div, Patuxent River, MD 20670 USA.
EM ammoore@smcm.edu
NR 0
TC 0
Z9 0
U1 3
U2 4
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 1431-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851303197
ER
PT J
AU Morris, K
Billiot, E
Billiot, F
Lipkowitz, K
Fang, YY
Southerland, W
AF Morris, Kevin
Billiot, Eugene
Billiot, Fereshteh
Lipkowitz, Kenny
Fang, Yayin
Southerland, William
TI Investigation of chiral molecular micelles by means of molecular
dynamics simulation and NMR spectroscopy
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Morris, Kevin] Carthage Coll, Dept Chem, Kenosha, WI 53140 USA.
[Billiot, Eugene; Billiot, Fereshteh] Texas A&M Univ Corpus Christi, Dept Phys & Environm Sci, Corpus Christi, TX 78412 USA.
[Lipkowitz, Kenny] Off Naval Res, Arlington, VA 22203 USA.
[Fang, Yayin; Southerland, William] Howard Univ, Coll Med, Washington, DC 20059 USA.
EM kmorris@carthage.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 116-ANYL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851300331
ER
PT J
AU O'Sullivan, DW
Silwal, IKC
McNeill, AS
Treadaway, VA
Heikes, BG
AF O'Sullivan, Daniel W.
Silwal, Indira K. C.
McNeill, Ashely S.
Treadaway, Victoria A.
Heikes, Brian G.
TI Multi-reagent ion chemical ionization mass spectrometry and ab initio
calculations applied to peroxide characterization and quantification
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [O'Sullivan, Daniel W.; Silwal, Indira K. C.] US Naval Acad, Annapolis, MD 21401 USA.
[McNeill, Ashely S.; Treadaway, Victoria A.; Heikes, Brian G.] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA.
EM silwal@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 242-ANYL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851300457
ER
PT J
AU Prak, DJL
Hoang, DT
Hamilton, LJ
Cowart, JS
AF Prak, Dianne J. Luning
Hoang, David T.
Hamilton, Leonard J.
Cowart, James S.
TI Algal-based hydrotreated renewable diesel: Characterization and
development of a surrogate fuel mixture
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Prak, Dianne J. Luning; Hoang, David T.] US Naval Acad, Dept Chem, Annapolis, MD 21012 USA.
[Hamilton, Leonard J.; Cowart, James S.] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
EM prak@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 445-ENFL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851304859
ER
PT J
AU Reed, CM
Schroeder, MJ
AF Reed, Catherine M.
Schroeder, Maria J.
TI Chocolate as a basis for teaching students
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Reed, Catherine M.; Schroeder, Maria J.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
EM m135658@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 465-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851302271
ER
PT J
AU Sohn, J
Maher, A
Smith, VF
AF Sohn, Joshua
Maher, Allison
Smith, Virginia F.
TI Cyclocreatine:membrane interactions studied by differential scanning
calorimetry and fluorescence emission spectroscopy
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Sohn, Joshua; Maher, Allison; Smith, Virginia F.] US Naval Acad, Annapolis, MD 21412 USA.
EM m136504@usna.edu; m134224@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 360-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851302173
ER
PT J
AU Sweet, CR
Alpuche, G
Landis, C
Sandman, B
AF Sweet, Charles R.
Alpuche, Giancarlo
Landis, Corinne
Sandman, Benjamin
TI Structure and adaptations of endotoxin in marine psychrophiles
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Sweet, Charles R.; Alpuche, Giancarlo; Landis, Corinne; Sandman, Benjamin] United States Naval Acad, Dept Chem, Annapolis, MD 21140 USA.
[Alpuche, Giancarlo] Natl Coast Guard, Belize City, Belize.
[Sandman, Benjamin] United States Navy, Newport, RI USA.
[Landis, Corinne] Penn State Coll Med, Hershey, PA 17033 USA.
EM sweet@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 56-BIOL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851300665
ER
PT J
AU Umbach, B
Gehlhausen, E
Sweet, CR
AF Umbach, Brynn
Gehlhausen, Erin
Sweet, Charles R.
TI Species and growth optimization of algal biofuel feedstocks
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 245th National Meeting of the American-Chemical-Society (ACS)
CY APR 07-11, 2013
CL New Orleans, LA
SP Amer Chem Soc
C1 [Umbach, Brynn; Gehlhausen, Erin; Sweet, Charles R.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
EM sweet@usna.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD APR 7
PY 2013
VL 245
MA 295-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 210RD
UT WOS:000323851302110
ER
PT J
AU Dunlap, BI
Schweigert, IV
Purdy, AP
Snow, AW
Hu, AG
AF Dunlap, Brett I.
Schweigert, Igor V.
Purdy, Andrew P.
Snow, Arthur W.
Hu, Anguang
TI Thermodynamic and kinetic stabilities of CO2 oligomers
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID PEROXYOXALATE CHEMILUMINESCENCE REACTION;
MAGNETIC-RESONANCE-SPECTROSCOPY; CARBON-DIOXIDE; BASIS-SETS; MECHANISM;
PRESSURE; SEARCH; FORMS
AB Density-functional and coupled cluster calculations suggest that the stability, against unimolecular dissociation, of the cyclic D-3h trimer of CO2, 1,3,5-trioxetanetrione, is greater than all but one other chemically bound oligomer of CO2. It requires far less energy to produce, on a per CO2 basis, than the low-symmetry cyclic 1,2 dioxetanedione dimer, but its kinetic stability against unimolecular dissociation is much lower. The extreme stability of the dimer, which makes it an excellent intermediate in chemiluminescence, is caused by an extreme range of geometric change to its transition state leading to a trapezoidal potential energy surface. The thermodynamically more stable trimer affords a low pressure pathway from molecular carbon dioxide to the extended covalent structure at high pressure. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4797465]
C1 [Dunlap, Brett I.; Schweigert, Igor V.; Purdy, Andrew P.; Snow, Arthur W.] USN, Div Chem, Res Lab, Washington, DC 20375 USA.
[Hu, Anguang] Def Res & Dev Canada Suffield, Medicine Hat, AB T1A 8K6, Canada.
RP Dunlap, BI (reprint author), USN, Div Chem, Res Lab, Code 6189, Washington, DC 20375 USA.
EM Dunlap@nrl.navy.mil
RI Schweigert, Igor/B-5750-2008;
OI Dunlap, Brett/0000-0003-1356-6559
FU Office of Naval Research, both directly and through the NRL
FX We greatly appreciate the insight and encouragement of Dr. Desmond
Sheehan, formerly of Naval Research Laboratory (NRL), for this project.
This work was supported by the Office of Naval Research, both directly
and through the NRL.
NR 28
TC 3
Z9 3
U1 3
U2 25
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-9606
EI 1089-7690
J9 J CHEM PHYS
JI J. Chem. Phys.
PD APR 7
PY 2013
VL 138
IS 13
AR 134304
DI 10.1063/1.4797465
PG 5
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 128SG
UT WOS:000317788500023
PM 23574224
ER
PT J
AU Liu, Y
Esser, L
Interlandi, G
Kisiela, DI
Tchesnokova, V
Thomas, WE
Sokurenko, E
Xia, D
Savarino, SJ
AF Liu, Yang
Esser, Lothar
Interlandi, Gianluca
Kisiela, Dagmara I.
Tchesnokova, Veronika
Thomas, Wendy E.
Sokurenko, Evgeni
Xia, Di
Savarino, Stephen J.
TI Tight Conformational Coupling between the Domains of the Enterotoxigenic
Escherichia coli Fimbrial Adhesin CfaE Regulates Binding State
Transition
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID FACTOR ANTIGEN-I; STRUCTURAL BASIS; STRUCTURE VALIDATION;
MOLECULAR-DYNAMICS; BACTERIAL ADHESION; CRYSTAL-STRUCTURE; CATCH BONDS;
FIMH; MANNOSE; MOLPROBITY
AB CfaE, the tip adhesin of enterotoxigenic Escherichia coli colonization factor antigen I fimbriae, initiates binding of this enteropathogen to the small intestine. It comprises stacked beta-sandwich adhesin (AD) and pilin (PD) domains, with the putative receptor-binding pocket at one pole and an equatorial interdomain interface. CfaE binding to erythrocytes is enhanced by application of moderate shear stress. A G168D replacement along the AD facing the CfaE interdomain region was previously shown to decrease the dependence on shear by increasing binding at lower shear forces. To elucidate the structural basis for this functional change, we studied the properties of CfaE G168D (with a self-complemented donor strand) and solved its crystal structure at 2.6 angstrom resolution. Compared with native CfaE, CfaE G168D showed a downward shift in peak erythrocyte binding under shear stress and greater binding under static conditions. The thermal melting transition of CfaE G168D occurred 10 C below that of CfaE. Compared with CfaE, the atomic structure of CfaE G168D revealed a 36% reduction in the buried surface area at the interdomain interface. Despite the location of this single modification in the AD, CfaE G168D exhibited structural derangements only in the adjoining PD compared with CfaE. In molecular dynamics simulations, the G168D mutation was associated with weakened interdomain interactions under tensile force. Taken together, these findings indicate that the AD and PD of CfaE are conformationally tightly coupled and support the hypothesis that opening of the interface plays a critical modulatory role in the allosteric activation of CfaE.
C1 [Liu, Yang; Savarino, Stephen J.] USN, Enter Dis Dept, Infect Dis Directorate, Med Res Ctr, Silver Spring, MD 20910 USA.
[Esser, Lothar; Xia, Di] NCI, Cell Biol Lab, Ctr Canc Res, NIH, Bethesda, MD 20892 USA.
[Esser, Lothar; Thomas, Wendy E.] Univ Washington, Dept Engn, Seattle, WA 98195 USA.
[Kisiela, Dagmara I.; Tchesnokova, Veronika; Sokurenko, Evgeni] Univ Washington, Dept Microbiol, Seattle, WA 98195 USA.
[Savarino, Stephen J.] Uniformed Serv Univ Hlth Sci, Dept Pediat, Bethesda, MD 20814 USA.
RP Sokurenko, E (reprint author), Univ Washington, Dept Microbiol, Hlth Sci Bldg,Rm E309, Seattle, WA 98195 USA.
EM evs@u.washington.edu; dixia@helix.nih.gov; stephen.savarino@med.navy.mil
FU National Institutes of Health [R01 AI050940]; National Cancer Institute
Intramural Research Program; Trans-National Institutes of Health/Food
and Drug Administration Intramural Biodefense Program; United States
Army Military Infectious Diseases Research Program Work Unit [A1207];
Henry M. Jackson Foundation for the Advancement of Military Medicine;
TeraGrid Grant [TG-MCB060069N]; National Science Foundation
FX This work was supported, in whole or in part, by National Institutes of
Health Grant R01 AI050940 (to E. S.) and by the National Cancer
Institute Intramural Research Program and the Trans-National Institutes
of Health/Food and Drug Administration Intramural Biodefense Program (to
D. X.). This work was also supported by United States Army Military
Infectious Diseases Research Program Work Unit A1207 and the Henry M.
Jackson Foundation for the Advancement of Military Medicine (to S. J.
S.). This work was prepared as part of the official duty of S. J. S.; We
thank the staff of the Southeast Regional Collaborative Access Team for
assistance for data collection. The molecular dynamics simulations were
run on the Trestles supercomputer at the San Diego Supercomputer Center
supported by TeraGrid Grant TG-MCB060069N with funding from the National
Science Foundation. We are grateful to Daniel Isaac for critical reading
of the manuscript.
NR 31
TC 4
Z9 4
U1 1
U2 14
PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA
SN 0021-9258
J9 J BIOL CHEM
JI J. Biol. Chem.
PD APR 5
PY 2013
VL 288
IS 14
BP 9993
EP 10001
DI 10.1074/jbc.M112.413534
PG 9
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 119RB
UT WOS:000317114000038
PM 23393133
ER
PT J
AU Joyner, D
AF Joyner, David
TI Algebraic Shift Register Sequences
SO CRYPTOLOGIA
LA English
DT Book Review
C1 [Joyner, David] US Naval Acad, Annapolis, MD 20402 USA.
RP Joyner, D (reprint author), US Naval Acad, Dept Math, Annapolis, MD 20402 USA.
EM wdj@usna.edu
NR 8
TC 1
Z9 1
U1 0
U2 1
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0161-1194
J9 CRYPTOLOGIA
JI Cryptologia
PD APR 3
PY 2013
VL 37
IS 2
BP 175
EP 183
DI 10.1080/01611194.2013.767680
PG 9
WC Computer Science, Theory & Methods; History & Philosophy Of Science;
Mathematics, Applied
SC Computer Science; History & Philosophy of Science; Mathematics
GA 187WI
UT WOS:000322151800008
ER
PT J
AU Joyner, D
AF Joyner, David
TI Cryptographic Boolean Functions and Applications
SO CRYPTOLOGIA
LA English
DT Book Review
C1 [Joyner, David] US Naval Acad, Annapolis, MD 20402 USA.
RP Joyner, D (reprint author), US Naval Acad, Dept Math, Annapolis, MD 20402 USA.
EM wdj@usna.edu
NR 16
TC 0
Z9 0
U1 0
U2 0
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 0161-1194
EI 1558-1586
J9 CRYPTOLOGIA
JI Cryptologia
PD APR 3
PY 2013
VL 37
IS 2
BP 189
EP 192
DI 10.1080/01611194.2013.767683
PG 4
WC Computer Science, Theory & Methods; History & Philosophy Of Science;
Mathematics, Applied
SC Computer Science; History & Philosophy of Science; Mathematics
GA 187WI
UT WOS:000322151800010
ER
PT J
AU Lindsay, L
Broido, DA
Reinecke, TL
AF Lindsay, L.
Broido, D. A.
Reinecke, T. L.
TI Ab initio thermal transport in compound semiconductors
SO PHYSICAL REVIEW B
LA English
DT Article
ID PHONON-DISPERSION CURVES; LATTICE-DYNAMICS; LOW TEMPERATURES;
THERMOELECTRIC POWER; INDIUM-PHOSPHIDE; RAMAN-SCATTERING; CONDUCTIVITY;
GERMANIUM; ARSENIDE; SILICON
AB We use a recently developed ab initio approach to calculate the lattice thermal conductivities of compound semiconductors. An exact numerical solution of the phonon Boltzmann transport equation is implemented, which uses harmonic and anharmonic interatomic force constants determined from density functional theory as inputs. We discuss the method for calculating the anharmonic interatomic force constants in some detail, and we describe their role in providing accurate thermal conductivities in a range of systems. This first-principles approach obtains good agreement with experimental results for well-characterized systems (Si, Ge, and GaAs). We determine the intrinsic upper bound to the thermal conductivities of cubic aluminum-V, gallium-V, and indium-V compounds as limited by anharmonic phonon scattering. The effects of phonon-isotope scattering on the thermal conductivities are examined in these materials and compared to available experimental data. We also obtain the lattice thermal conductivities of other technologically important materials, AlN and SiC. For most materials, good agreement with the experimental lattice thermal conductivities for naturally occurring isotopic compositions is found. We show that the overall frequency scale of the acoustic phonons and the size of the gap between acoustic and optic phonons play important roles in determining the lattice thermal conductivity of each system. The first-principles approach used here can provide quantitative predictions of thermal transport in a wide range of systems. DOI: 10.1103/PhysRevB.87.165201
C1 [Lindsay, L.; Reinecke, T. L.] USN, Res Lab, Washington, DC 20375 USA.
[Broido, D. A.] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
RP Lindsay, L (reprint author), USN, Res Lab, Washington, DC 20375 USA.
RI Lindsay, Lucas/C-9221-2012
OI Lindsay, Lucas/0000-0001-9645-7993
FU ONR; DARPA; NRC/NRL Research Associateship; National Science Foundation
[1066634]; S3TEC, an Energy Frontier Research Center; US Department of
Energy, Office of Science, Office of Basic Energy Sciences
[DE-FG02-09ER46577]
FX This work was supported in part by ONR and DARPA (L. L. and T. L. R.).
L. L. acknowledges support from a NRC/NRL Research Associateship. D. A.
B. acknowledges support from the National Science Foundation under Grant
No. 1066634 and from the S3TEC, an Energy Frontier Research Center
funded by the US Department of Energy, Office of Science, Office of
Basic Energy Sciences under Award No. DE-FG02-09ER46577. We also thank
Wu Li, Natalio Mingo, and Derek Stewart for useful discussions.
NR 79
TC 85
Z9 87
U1 7
U2 162
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9950
EI 2469-9969
J9 PHYS REV B
JI Phys. Rev. B
PD APR 2
PY 2013
VL 87
IS 16
AR 165201
DI 10.1103/PhysRevB.87.165201
PG 15
WC Physics, Condensed Matter
SC Physics
GA 117JE
UT WOS:000316948700002
ER
PT J
AU Adamczyk, L
Adkins, JK
Agakishiev, G
Aggarwal, MM
Ahammed, Z
Alekseev, I
Alford, J
Anson, CD
Aparin, A
Arkhipkin, D
Aschenauer, E
Averichev, GS
Balewski, J
Banerjee, A
Barnovska, Z
Beavis, DR
Bellwied, R
Betancourt, MJ
Betts, RR
Bhasin, A
Bhati, AK
Bhattarai, P
Bichsel, H
Bielcik, J
Bielcikova, J
Bland, LC
Bordyuzhin, IG
Borowski, W
Bouchet, J
Brandin, AV
Brovko, SG
Bruna, E
Bultmann, S
Bunzarov, I
Burton, TP
Butterworth, J
Cai, XZ
Caines, H
Sanchez, MCD
Cebra, D
Cendejas, R
Cervantes, MC
Chaloupka, P
Chang, Z
Chattopadhyay, S
Chen, HF
Chen, JH
Chen, JY
Chen, L
Cheng, J
Cherney, M
Chikanian, A
Christie, W
Chung, P
Chwastowski, J
Codrington, MJM
Corliss, R
Cramer, JG
Crawford, HJ
Cui, X
Das, S
Leyva, AD
De Silva, LC
Debbe, RR
Dedovich, TG
Deng, J
de Souza, RD
Dhamija, S
di Ruzza, B
Didenko, L
Ding, F
Dion, A
Djawotho, P
Dong, X
Drachenberg, JL
Draper, JE
Du, CM
Dunkelberger, LE
Dunlop, JC
Efimov, LG
Elnimr, M
Engelage, J
Eppley, G
Eun, L
Evdokimov, O
Fatemi, R
Fazio, S
Fedorisin, J
Fersch, RG
Filip, P
Finch, E
Fisyak, Y
Flores, E
Gagliardi, CA
Gangadharan, DR
Garand, D
Geurts, F
Gibson, A
Gliske, S
Grebenyuk, OG
Grosnick, D
Gupta, A
Gupta, S
Guryn, W
Haag, B
Hajkova, O
Hamed, A
Han, LX
Harris, JW
Hays-Wehle, JP
Heppelmann, S
Hirsch, A
Hoffmann, GW
Hofman, DJ
Horvat, S
Huang, B
Huang, HZ
Huck, P
Humanic, TJ
Igo, G
Jacobs, WW
Jena, C
Judd, EG
Kabana, S
Kang, K
Kapitan, J
Kauder, K
Ke, HW
Keane, D
Kechechyan, A
Kesich, A
Kikola, DP
Kiryluk, J
Kisel, I
Kisiel, A
Klein, SR
Koetke, DD
Kollegger, T
Konzer, J
Koralt, I
Korsch, W
Kotchenda, L
Kravtsov, P
Krueger, K
Kulakov, I
Kumar, L
Lamont, MAC
Landgraf, JM
Landry, KD
LaPointe, S
Lauret, J
Lebedev, A
Lednicky, R
Lee, JH
Leight, W
LeVine, MJ
Li, C
Li, W
Li, X
Li, X
Li, Y
Li, ZM
Lima, LM
Lisa, MA
Liu, F
Ljubicic, T
Llope, WJ
Longacre, RS
Lu, Y
Luo, X
Luszczak, A
Ma, GL
Ma, YG
Don, DMMDM
Mahapatra, DP
Majka, R
Margetis, S
Markert, C
Masui, H
Matis, HS
McDonald, D
McShane, TS
Mioduszewski, S
Mitrovski, MK
Mohammed, Y
Mohanty, B
Mondal, MM
Munhoz, MG
Mustafa, MK
Naglis, M
Nandi, BK
Nasim, M
Nayak, TK
Nelson, JM
Nogach, LV
Novak, J
Odyniec, G
Ogawa, A
Oh, K
Ohlson, A
Okorokov, V
Oldag, EW
Oliveira, RAN
Olson, D
Pachr, M
Page, BS
Pal, SK
Pan, YX
Pandit, Y
Panebratsev, Y
Pawlak, T
Pawlik, B
Pei, H
Perkins, C
Peryt, W
Pile, P
Planinic, M
Pluta, J
Poljak, N
Porter, J
Poskanzer, AM
Powell, CB
Pruneau, C
Pruthi, NK
Przybycien, M
Pujahari, PR
Putschke, J
Qiu, H
Ramachandran, S
Raniwala, R
Raniwala, S
Ray, RL
Riley, CK
Ritter, HG
Roberts, JB
Rogachevskiy, OV
Romero, JL
Ross, JF
Ruan, L
Rusnak, J
Sahoo, NR
Sahu, PK
Sakrejda, I
Salur, S
Sandacz, A
Sandweiss, J
Sangaline, E
Sarkar, A
Schambach, J
Scharenberg, RP
Schmah, AM
Schmidke, B
Schmitz, N
Schuster, TR
Seger, J
Seyboth, P
Shah, N
Shahaliev, E
Shao, M
Sharma, B
Sharma, M
Shi, SS
Shou, QY
Sichtermann, EP
Singaraju, RN
Skoby, MJ
Smirnov, D
Smirnov, N
Solanki, D
Sorensen, P
Desouza, UG
Spinka, HM
Srivastava, B
Stanislaus, TDS
Stevens, JR
Stock, R
Strikhanov, M
Stringfellow, B
Suaide, AAP
Suarez, MC
Sumbera, M
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Svirida, DN
Symons, TJM
de Toledo, AS
Takahashi, J
Tang, AH
Tang, Z
Tarini, LH
Tarnowsky, T
Thomas, JH
Tian, J
Timmins, AR
Tlusty, D
Tokarev, M
Trentalange, S
Tribble, RE
Tribedy, P
Trzeciak, BA
Tsai, OD
Turnau, J
Ullrich, T
Underwood, DG
Van Buren, G
van Nieuwenhuizen, G
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Videbaek, F
Viyogi, YP
Vokal, S
Voloshin, SA
Vossen, A
Wada, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, Q
Wang, XL
Wang, Y
Webb, G
Webb, JC
Westfall, GD
Whitten, C
Wieman, H
Wissink, SW
Witt, R
Wu, YF
Xiao, Z
Xie, W
Xin, K
Xu, H
Xu, N
Xu, QH
Xu, W
Xu, Y
Xu, Z
Xue, L
Yang, Y
Yang, Y
Yepes, P
Yi, L
Yip, K
Yoo, IK
Zawisza, M
Zbroszczyk, H
Zhang, JB
Zhang, S
Zhang, XP
Zhang, Y
Zhang, ZP
Zhao, F
Zhao, J
Zhong, C
Zhu, X
Zhu, YH
Zoulkarneeva, Y
Zyzak, M
AF Adamczyk, L.
Adkins, J. K.
Agakishiev, G.
Aggarwal, M. M.
Ahammed, Z.
Alekseev, I.
Alford, J.
Anson, C. D.
Aparin, A.
Arkhipkin, D.
Aschenauer, E.
Averichev, G. S.
Balewski, J.
Banerjee, A.
Barnovska, Z.
Beavis, D. R.
Bellwied, R.
Betancourt, M. J.
Betts, R. R.
Bhasin, A.
Bhati, A. K.
Bhattarai, P.
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Bland, L. C.
Bordyuzhin, I. G.
Borowski, W.
Bouchet, J.
Brandin, A. V.
Brovko, S. G.
Bruna, E.
Bueltmann, S.
Bunzarov, I.
Burton, T. P.
Butterworth, J.
Cai, X. Z.
Caines, H.
Sanchez, M. Calderon de la Barca
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chaloupka, P.
Chang, Z.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Chen, L.
Cheng, J.
Cherney, M.
Chikanian, A.
Christie, W.
Chung, P.
Chwastowski, J.
Codrington, M. J. M.
Corliss, R.
Cramer, J. G.
Crawford, H. J.
Cui, X.
Das, S.
Leyva, A. Davila
De Silva, L. C.
Debbe, R. R.
Dedovich, T. G.
Deng, J.
Derradi de Souza, R.
Dhamija, S.
di Ruzza, B.
Didenko, L.
Ding, F.
Dion, A.
Djawotho, P.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, C. M.
Dunkelberger, L. E.
Dunlop, J. C.
Efimov, L. G.
Elnimr, M.
Engelage, J.
Eppley, G.
Eun, L.
Evdokimov, O.
Fatemi, R.
Fazio, S.
Fedorisin, J.
Fersch, R. G.
Filip, P.
Finch, E.
Fisyak, Y.
Flores, E.
Gagliardi, C. A.
Gangadharan, D. R.
Garand, D.
Geurts, F.
Gibson, A.
Gliske, S.
Grebenyuk, O. G.
Grosnick, D.
Gupta, A.
Gupta, S.
Guryn, W.
Haag, B.
Hajkova, O.
Hamed, A.
Han, L-X.
Harris, J. W.
Hays-Wehle, J. P.
Heppelmann, S.
Hirsch, A.
Hoffmann, G. W.
Hofman, D. J.
Horvat, S.
Huang, B.
Huang, H. Z.
Huck, P.
Humanic, T. J.
Igo, G.
Jacobs, W. W.
Jena, C.
Judd, E. G.
Kabana, S.
Kang, K.
Kapitan, J.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Kesich, A.
Kikola, D. P.
Kiryluk, J.
Kisel, I.
Kisiel, A.
Klein, S. R.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Koralt, I.
Korsch, W.
Kotchenda, L.
Kravtsov, P.
Krueger, K.
Kulakov, I.
Kumar, L.
Lamont, M. A. C.
Landgraf, J. M.
Landry, K. D.
LaPointe, S.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, J. H.
Leight, W.
LeVine, M. J.
Li, C.
Li, W.
Li, X.
Li, X.
Li, Y.
Li, Z. M.
Lima, L. M.
Lisa, M. A.
Liu, F.
Ljubicic, T.
Llope, W. J.
Longacre, R. S.
Lu, Y.
Luo, X.
Luszczak, A.
Ma, G. L.
Ma, Y. G.
Don, D. M. M. D. Madagodagettige
Mahapatra, D. P.
Majka, R.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
McDonald, D.
McShane, T. S.
Mioduszewski, S.
Mitrovski, M. K.
Mohammed, Y.
Mohanty, B.
Mondal, M. M.
Munhoz, M. G.
Mustafa, M. K.
Naglis, M.
Nandi, B. K.
Nasim, Md
Nayak, T. K.
Nelson, J. M.
Nogach, L. V.
Novak, J.
Odyniec, G.
Ogawa, A.
Oh, K.
Ohlson, A.
Okorokov, V.
Oldag, E. W.
Oliveira, R. A. N.
Olson, D.
Pachr, M.
Page, B. S.
Pal, S. K.
Pan, Y. X.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Pawlik, B.
Pei, H.
Perkins, C.
Peryt, W.
Pile, P.
Planinic, M.
Pluta, J.
Poljak, N.
Porter, J.
Poskanzer, A. M.
Powell, C. B.
Pruneau, C.
Pruthi, N. K.
Przybycien, M.
Pujahari, P. R.
Putschke, J.
Qiu, H.
Ramachandran, S.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Riley, C. K.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Ross, J. F.
Ruan, L.
Rusnak, J.
Sahoo, N. R.
Sahu, P. K.
Sakrejda, I.
Salur, S.
Sandacz, A.
Sandweiss, J.
Sangaline, E.
Sarkar, A.
Schambach, J.
Scharenberg, R. P.
Schmah, A. M.
Schmidke, B.
Schmitz, N.
Schuster, T. R.
Seger, J.
Seyboth, P.
Shah, N.
Shahaliev, E.
Shao, M.
Sharma, B.
Sharma, M.
Shi, S. S.
Shou, Q. Y.
Sichtermann, E. P.
Singaraju, R. N.
Skoby, M. J.
Smirnov, D.
Smirnov, N.
Solanki, D.
Sorensen, P.
Desouza, U. G.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Stevens, J. R.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Suaide, A. A. P.
Suarez, M. C.
Sumbera, M.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Svirida, D. N.
Symons, T. J. M.
Szanto de Toledo, A.
Takahashi, J.
Tang, A. H.
Tang, Z.
Tarini, L. H.
Tarnowsky, T.
Thomas, J. H.
Tian, J.
Timmins, A. R.
Tlusty, D.
Tokarev, M.
Trentalange, S.
Tribble, R. E.
Tribedy, P.
Trzeciak, B. A.
Tsai, O. D.
Turnau, J.
Ullrich, T.
Underwood, D. G.
Van Buren, G.
van Nieuwenhuizen, G.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Vossen, A.
Wada, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, Q.
Wang, X. L.
Wang, Y.
Webb, G.
Webb, J. C.
Westfall, G. D.
Whitten, C., Jr.
Wieman, H.
Wissink, S. W.
Witt, R.
Wu, Y. F.
Xiao, Z.
Xie, W.
Xin, K.
Xu, H.
Xu, N.
Xu, Q. H.
Xu, W.
Xu, Y.
Xu, Z.
Xue, L.
Yang, Y.
Yang, Y.
Yepes, P.
Yi, L.
Yip, K.
Yoo, I-K.
Zawisza, M.
Zbroszczyk, H.
Zhang, J. B.
Zhang, S.
Zhang, X. P.
Zhang, Y.
Zhang, Z. P.
Zhao, F.
Zhao, J.
Zhong, C.
Zhu, X.
Zhu, Y. H.
Zoulkarneeva, Y.
Zyzak, M.
CA Star Collaboration
TI Observation of an Energy-Dependent Difference in Elliptic Flow between
Particles and Antiparticles in Relativistic Heavy Ion Collisions
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID NUCLEAR COLLISIONS
AB Elliptic flow (v(2)) values for identified particles at midrapidity in Au + Au collisions, measured by the STAR experiment in the beam energy scan at RHIC at root s(NN) = 7.7-62.4 GeV, are presented. A beamenergy-dependent difference of the values of v(2) between particles and corresponding antiparticles was observed. The difference increases with decreasing beam energy and is larger for baryons compared to mesons. This implies that, at lower energies, particles and antiparticles are not consistent with the universal number-of-constituent-quark scaling of v(2) that was observed at root s(NN) = 200 GeV. DOI: 10.1103/PhysRevLett.110.142301
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[Gliske, S.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Nelson, J. M.] Univ Birmingham, Birmingham, W Midlands, England.
[Arkhipkin, D.; Aschenauer, E.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; di Ruzza, B.; Didenko, L.; Dion, A.; Dunlop, J. C.; Fazio, S.; Fisyak, Y.; Guryn, W.; Huang, B.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Mitrovski, M. K.; Pile, P.; Ruan, L.; Schmidke, B.; Smirnov, D.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Wang, H.; Webb, J. C.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
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[Chwastowski, J.; Luszczak, A.] Cracow Univ Technol, Krakow, Poland.
[Cherney, M.; Don, D. M. M. D. Madagodagettige; McShane, T. S.; Ross, J. F.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Chaloupka, P.; Hajkova, O.; Pachr, M.] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague, Czech Republic.
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[Kollegger, T.; Schuster, T. R.; Stock, R.] Goethe Univ Frankfurt, D-60054 Frankfurt, Germany.
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[Nandi, B. K.; Pujahari, P. R.; Sarkar, A.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India.
[Dhamija, S.; Jacobs, W. W.; Page, B. S.; Skoby, M. J.; Vossen, A.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA.
[Alekseev, I.; Bordyuzhin, I. G.; Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow, Russia.
[Bhasin, A.; Gupta, A.; Gupta, S.] Univ Jammu, Jammu 180001, India.
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[Balewski, J.; Betancourt, M. J.; Corliss, R.; Hays-Wehle, J. P.; Leight, W.; Stevens, J. R.; van Nieuwenhuizen, G.] MIT, Cambridge, MA 02139 USA.
[Schmitz, N.; Seyboth, P.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Novak, J.; Tarnowsky, T.; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA.
[Brandin, A. V.; Kotchenda, L.; Kravtsov, P.; Okorokov, V.; Strikhanov, M.] Moscow Engn Phys Inst, Moscow 115409, Russia.
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[Bueltmann, S.; Koralt, I.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Pawlik, B.; Turnau, J.] Inst Nucl Phys PAN, Krakow, Poland.
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[Cendejas, R.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA.
[Nogach, L. V.] Inst High Energy Phys, Protvino, Russia.
[Garand, D.; Hirsch, A.; Kikola, D. P.; Konzer, J.; Li, X.; Mustafa, M. K.; Scharenberg, R. P.; Srivastava, B.; Stringfellow, B.; Wang, F.; Wang, Q.; Xie, W.; Yi, L.] Purdue Univ, W Lafayette, IN 47907 USA.
[Oh, K.; Yoo, I-K.] Pusan Natl Univ, Pusan 609735, South Korea.
[Raniwala, R.; Raniwala, S.; Solanki, D.] Univ Rajasthan, Jaipur 302004, Rajasthan, India.
[Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W. J.; McDonald, D.; Roberts, J. B.; Xin, K.; Yepes, P.] Rice Univ, Houston, TX 77251 USA.
[Lima, L. M.; Munhoz, M. G.; Oliveira, R. A. N.; Desouza, U. G.; Suaide, A. A. P.; Szanto de Toledo, A.] Univ Sao Paulo, Sao Paulo, Brazil.
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[Deng, J.; Xu, Q. H.] Shandong Univ, Jinan 250100, Shandong, Peoples R China.
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[Li, X.; Surrow, B.] Temple Univ, Philadelphia, PA 19122 USA.
[Cervantes, M. C.; Chang, Z.; Djawotho, P.; Gagliardi, C. A.; Hamed, A.; Mioduszewski, S.; Mohammed, Y.; Mondal, M. M.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.
[Bhattarai, P.; Codrington, M. J. M.; Leyva, A. Davila; Hoffmann, G. W.; Markert, C.; Oldag, E. W.; Ray, R. L.; Schambach, J.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA.
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[Drachenberg, J. L.; Gibson, A.; Grosnick, D.; Koetke, D. D.; Stanislaus, T. D. S.] Valparaiso Univ, Valparaiso, IN 46383 USA.
[Ahammed, Z.; Banerjee, A.; Chattopadhyay, S.; Nasim, Md; Nayak, T. K.; Pal, S. K.; Sahoo, N. R.; Singaraju, R. N.; Tribedy, P.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata 700064, India.
[Kisiel, A.; Pawlak, T.; Peryt, W.; Pluta, J.; Sandacz, A.; Trzeciak, B. A.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Bichsel, H.; Cramer, J. G.] Univ Washington, Seattle, WA 98195 USA.
[Elnimr, M.; LaPointe, S.; Pruneau, C.; Putschke, J.; Sharma, M.; Tarini, L. H.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.
[Bruna, E.; Caines, H.; Chikanian, A.; Finch, E.; Harris, J. W.; Horvat, S.; Majka, R.; Ohlson, A.; Riley, C. K.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA.
[Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia.
RP Adamczyk, L (reprint author), AGH Univ Sci & Technol, Krakow, Poland.
RI Bielcikova, Jana/G-9342-2014; Alekseev, Igor/J-8070-2014; Sumbera,
Michal/O-7497-2014; Strikhanov, Mikhail/P-7393-2014; Xu,
Wenqin/H-7553-2014; Voloshin, Sergei/I-4122-2013; Pandit,
Yadav/I-2170-2013; Lednicky, Richard/K-4164-2013; Takahashi,
Jun/B-2946-2012; Fazio, Salvatore /G-5156-2010; Yang,
Yanyun/B-9485-2014; Dong, Xin/G-1799-2014; Rusnak, Jan/G-8462-2014; Yip,
Kin/D-6860-2013; XIAO, Zhigang/C-3788-2015; Aparecido Negrao de
Oliveira, Renato/G-9133-2015; Bruna, Elena/C-4939-2014; Chaloupka,
Petr/E-5965-2012; Huang, Bingchu/H-6343-2015; Suaide,
Alexandre/L-6239-2016; Xin, Kefeng/O-9195-2016; Yi, Li/Q-1705-2016;
Svirida, Dmitry/R-4909-2016; Inst. of Physics, Gleb
Wataghin/A-9780-2017; Okorokov, Vitaly/C-4800-2017; Ma,
Yu-Gang/M-8122-2013; Derradi de Souza, Rafael/M-4791-2013
OI Alekseev, Igor/0000-0003-3358-9635; Sumbera, Michal/0000-0002-0639-7323;
Strikhanov, Mikhail/0000-0003-2586-0405; Xu, Wenqin/0000-0002-5976-4991;
Pandit, Yadav/0000-0003-2809-7943; Takahashi, Jun/0000-0002-4091-1779;
Yang, Yanyun/0000-0002-5982-1706; Dong, Xin/0000-0001-9083-5906; Yip,
Kin/0000-0002-8576-4311; Fisyak, Yuri/0000-0002-3151-8377; Mohanty,
Bedangadas/0000-0001-9610-2914; Bhasin, Anju/0000-0002-3687-8179; Ke,
Hongwei/0000-0003-1463-7291; Sorensen, Paul/0000-0001-5056-9391; Thomas,
James/0000-0002-6256-4536; Bruna, Elena/0000-0001-5427-1461; Huang,
Bingchu/0000-0002-3253-3210; Suaide, Alexandre/0000-0003-2847-6556; Xin,
Kefeng/0000-0003-4853-9219; Yi, Li/0000-0002-7512-2657; Okorokov,
Vitaly/0000-0002-7162-5345; Ma, Yu-Gang/0000-0002-0233-9900; Derradi de
Souza, Rafael/0000-0002-2084-7001
FU RHIC Operations Group; RCF at BNL; NERSC Center at LBNL; Open Science
Grid consortium; office of NP within the U.S. DOE Office of Science;
U.S. NSF; Sloan Foundation; CNRS/IN2P3; CNPq of Brazil; Ministry of Ed.
and Sci. of the Russian Federation; NNSFC; CAS; MoST; MoE of China; GA;
MSMT of the Czech Republic; FOM; NWO of the Netherlands; DAE; DST; CSIR
of India; Polish Ministry of Sci. and Higher Ed.; Korea Research
Foundation; Ministry of Sci., Ed. and Sports of the Rep. of Croatia;
RosAtom of Russia; VEGA of Slovakia; office of HEP within the U.S. DOE
Office of Science; FAPESP
FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at
LBNL, and the Open Science Grid consortium for providing resources and
support. This work was supported in part by the offices of NP and HEP
within the U.S. DOE Office of Science, the U.S. NSF, the Sloan
Foundation, CNRS/IN2P3, FAPESP CNPq of Brazil, Ministry of Ed. and Sci.
of the Russian Federation, NNSFC, CAS, MoST, and MoE of China, GA and
MSMT of the Czech Republic, FOM and NWO of the Netherlands, DAE, DST,
and CSIR of India, Polish Ministry of Sci. and Higher Ed., Korea
Research Foundation, Ministry of Sci., Ed. and Sports of the Rep. of
Croatia, and RosAtom of Russia, and VEGA of Slovakia.
NR 33
TC 32
Z9 33
U1 0
U2 51
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD APR 2
PY 2013
VL 110
IS 14
AR 142301
DI 10.1103/PhysRevLett.110.142301
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 117NC
UT WOS:000316959200011
PM 25166982
ER
PT J
AU Shu, IW
Onton, JA
Matthews, SC
AF Shu, I-Wei
Onton, Julie A.
Matthews, Scott C.
TI INCREASED MID-CINGULATE RESPONSES TO INHIBITORY STIMULI IN VETERANS WITH
PTSD AFTER COMBAT-RELATED CONCUSSION
SO PSYCHOSOMATIC MEDICINE
LA English
DT Meeting Abstract
CT 71st Annual Scientific Meeting of the American-Psychosomatic-Society
CY MAR 13-16, 2013
CL Miami, FL
SP Amer Psychosomat Soc
C1 [Shu, I-Wei; Matthews, Scott C.] Vet Affairs San Diego Healthcare Syst, Psychiat Serv, San Diego, CA USA.
[Onton, Julie A.] Naval Hlth Res Ctr, San Diego, CA USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0033-3174
EI 1534-7796
J9 PSYCHOSOM MED
JI Psychosom. Med.
PD APR
PY 2013
VL 75
IS 3
BP A144
EP A144
PG 1
WC Psychiatry; Psychology; Psychology, Multidisciplinary
SC Psychiatry; Psychology
GA 300MG
UT WOS:000330467400458
ER
PT J
AU Shu, IW
Matthews, SC
Onton, JA
AF Shu, I-Wei
Matthews, Scott C.
Onton, Julie A.
TI VETERANS WITH PTSD AFTER COMBAT-RELATED CONCUSSION EXHIBIT ALTERED
POSTERIOR CINGULATE ACTIVITY WHILE APPRAISING FACIAL EMOTIONS
SO PSYCHOSOMATIC MEDICINE
LA English
DT Meeting Abstract
CT 71st Annual Scientific Meeting of the American-Psychosomatic-Society
CY MAR 13-16, 2013
CL Miami, FL
SP Amer Psychosomat Soc
C1 [Shu, I-Wei; Matthews, Scott C.] Vet Affairs San Diego Healthcare Syst, Psychiat Serv, San Diego, CA USA.
[Onton, Julie A.] Naval Hlth Res Ctr, San Diego, CA USA.
NR 0
TC 0
Z9 0
U1 1
U2 2
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0033-3174
EI 1534-7796
J9 PSYCHOSOM MED
JI Psychosom. Med.
PD APR
PY 2013
VL 75
IS 3
BP A44
EP A44
PG 1
WC Psychiatry; Psychology; Psychology, Multidisciplinary
SC Psychiatry; Psychology
GA 300MG
UT WOS:000330467400143
ER
PT J
AU Wu, CC
Tam, SWY
AF Wu, Chin-Chun
Tam, Sunny W. Y.
TI Preface to the Special Issue on "Connection of Solar and Heliospheric
Activities with Near-Earth Space Weather: Sun-Earth Connection"
SO TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
LA English
DT Editorial Material
C1 [Tam, Sunny W. Y.] Natl Cheng Kung Univ, Inst Space Astrophys & Plasma Sci, Tainan 70101, Taiwan.
[Wu, Chin-Chun] Naval Res Lab, Div Space Sci, Washington, DC USA.
RP Wu, CC (reprint author), Naval Res Lab, Div Space Sci, Washington, DC USA.
EM chin-chun.wu@nrl.navy.mil; sunwytam@pssc.ncku.edu.tw
NR 13
TC 0
Z9 0
U1 2
U2 4
PU CHINESE GEOSCIENCE UNION
PI TAIPEI
PA PO BOX 23-59, TAIPEI 10764, TAIWAN
SN 1017-0839
J9 TERR ATMOS OCEAN SCI
JI Terr. Atmos. Ocean. Sci.
PD APR
PY 2013
VL 24
IS 2
SI SI
BP I
EP III
DI 10.3319/TAO.2013.03.22.01(SEC)
PG 3
WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences;
Oceanography
SC Geology; Meteorology & Atmospheric Sciences; Oceanography
GA 292IC
UT WOS:000329894400001
ER
PT J
AU Liou, K
Wu, CC
Dryer, M
Wu, ST
Berdichevsky, DB
Plunkett, S
Mewaldt, RA
Mason, GM
AF Liou, Kan
Wu, Chin-Chun
Dryer, Murray
Wu, Shi-Tsan
Berdichevsky, Daniel B.
Plunkett, Simon
Mewaldt, Richard A.
Mason, Glenn M.
TI Magnetohydrodynamic Fast Shocks and Their Relation to Solar Energetic
Particle Event Intensities
SO TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
LA English
DT Article
DE Solar energetic particles; CME driven-shocks; MHD simulation; ACE
ID CORONAL MASS EJECTIONS; INTERPLANETARY SHOCKS; ISOTOPE SPECTROMETER;
SUN; ACCELERATION; IONS
AB Gradual solar energetic particles (SEPs) are associated with interplanetary (IP) shock driven by coronal mass ejections. Testing theories/models that are built around shock acceleration mechanisms is difficult due to the complexity of SEP fluxes acquired by single-point measurements. To circumvent this, we correlate fast-forward shock Mach numbers derived from a 1.5D magnetohydrodynamics simulation with the intensity of solar energetic oxygen (O) and helium-4 (He-4) particles acquired by instruments aboard the ACE spacecraft during a series of coronal mass ejections in 2003 (October 28 - 31). A good correlation at the 5% significance level is found for O and He-4 with energy (E) > 10 MeV n(-1), with the peak correlation coefficient r = 0.82 for O (E = 63.8 - 89.8 MeV n(-1)) and r = 0.77 for He-4 (E = 18.0 - 29.4 MeV n(-1)), respectively, for hourly averaged data. This result not only bolsters the causal relationship between IP fast shocks and SEPs, but also suggests that the Mach number of IP shocks is one of the major controlling parameters for the intensity of SEPs measured in the near-Earth space.
C1 [Liou, Kan; Mason, Glenn M.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
[Wu, Chin-Chun; Plunkett, Simon] Naval Res Lab, Washington, DC USA.
[Dryer, Murray] NOAA, Space Weather Predict Ctr, Boulder, CO USA.
[Wu, Shi-Tsan] Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL USA.
[Berdichevsky, Daniel B.] Univ Dist Columbia, Washington, DC USA.
[Mewaldt, Richard A.] CALTECH, Space Radit Lab, Pasadena, CA 91125 USA.
RP Liou, K (reprint author), Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
EM kan.liou@jhuapl.edu
RI Liou, Kan/C-2089-2016
OI Liou, Kan/0000-0001-5277-7688
FU NSF [AGS-0964396, ATM0754278]; ONR; AFOSR [FA9550-07-1-0468]; NASA
[NNX1OAT75G, NNX07AP69G, NNX8AI11G]; [NRL 6.1]
FX We would like to acknowledge E. Stone, who is the Principal Investigator
of the ACE/SIS instrument team. We acknowledge the use of flare data
from the NOAA Space Weather Prediction Center. The work of K. Liou was
supported by NSF AGS-0964396 Grant. The work of C. C. Wu was supported
by ONR. The work of S. Plunkett was supported by NRL 6.1 Program. The
work of S. T. Wu is supported by AFOSR Grant FA9550-07-1-0468 and NSF
Grant ATM0754278 to UAH. The work of G. M. Mason was supported by NASA
grants NNX1OAT75G and NNX07AP69G. The work at Caltech was sponsored by
NASA grant NNX8AI11G.
NR 26
TC 7
Z9 7
U1 0
U2 0
PU CHINESE GEOSCIENCE UNION
PI TAIPEI
PA PO BOX 23-59, TAIPEI 10764, TAIWAN
SN 1017-0839
J9 TERR ATMOS OCEAN SCI
JI Terr. Atmos. Ocean. Sci.
PD APR
PY 2013
VL 24
IS 2
SI SI
BP 165
EP 173
DI 10.3319/TAO.2012.05.08.01(SEC)
PG 9
WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences;
Oceanography
SC Geology; Meteorology & Atmospheric Sciences; Oceanography
GA 292IC
UT WOS:000329894400002
ER
PT J
AU Wu, CC
Gopalswamy, N
Lepping, RP
Yashiro, S
AF Wu, Chin-Chun
Gopalswamy, Natchimuthuk
Lepping, Ronld Paul
Yashiro, Seiji
TI Characteristics of Magnetic Clouds and Interplanetary Coronal Mass
Ejections which Cause Intense Geomagnetic Storms
SO TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
LA English
DT Article
DE Magnetic cloud; Interplanetary coronal mass ejection; Geomagnetic storm;
Solar flare; Corotating interaction region
ID SOLAR; WIND; GEOEFFECTIVENESS; MAXIMUM; EVENTS; CYCLE; CMES
AB We present the results of a statistical data analysis of the geo-effectiveness of non-magnetic-cloud interplanetary coronal mass ejections (ICMEs) and compare them with those of magnetic-cloud (MC) interplanetary coronal mass ejections observed during solar cycle 23. (The term ICME as used here will refer to a non-MC ICME.) The starting point of this investigation is the set of intense geomagnetic storms (Dst(min) <= -100 nT) of solar cycle 23 between 1996 and 2005. We also compare the solar source locations of the ICMEs with those of the MCs. The source locations of the solar disturbances are, on average, closer to the Sun-Earth line for the MCs than for the ICMEs. There is an anomaly for the location of the related solar sources: no event came from the region between the solar equator plane and 10 degrees S (south) of that plane. The primary results are listed as follows. The average duration of these MCs is slightly longer (similar to 7%) than that of ICMEs. The average geomagnetic storm intensity for the MCs is higher than that for the ICMEs and CIRs formed by high-speed streams from coronal holes, especially for the events associated with X class flares. The relevant average magnetic field component, i.e., vertical bar Bz(min) vertical bar, is more intense within the MCs than within the ICMEs. The average solar wind speed is similar for both MCs and ICMEs. Maximum solar wind speed is higher within ICMEs than within MCs. Maximum solar wind proton density is higher for MCs than for ICMEs.
C1 [Wu, Chin-Chun] Naval Res Lab, Washington, DC USA.
[Gopalswamy, Natchimuthuk; Yashiro, Seiji] NASA GSFC, Solar Syst Explorat Div, Solar Phys Lab, Greenbelt, MD USA.
[Lepping, Ronld Paul] NASA GSFC, Heliosphys Sci Div, Greenbelt, MD USA.
[Yashiro, Seiji] Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA.
RP Wu, CC (reprint author), Naval Res Lab, Washington, DC USA.
EM chin-chun.wu@nrl.navy.mil
FU NASA's LWS program [NNH09AM46I]; NRL 6.1 program
FX We thank the Wind SWE and MFI teams and the National Space Science Data
Center at Goddard Space Flight Center for Wind data management and for
providing the Wind solar wind plasma and magnetic field data, and the
team at Kyoto University, Kyoto, Japan for providing the Dst data. This
study is supported partially by NASA's LWS program via grants NNH09AM46I
(CCW and RPL), and NRL 6.1 program (CCW).
NR 31
TC 7
Z9 7
U1 0
U2 4
PU CHINESE GEOSCIENCE UNION
PI TAIPEI
PA PO BOX 23-59, TAIPEI 10764, TAIWAN
SN 1017-0839
J9 TERR ATMOS OCEAN SCI
JI Terr. Atmos. Ocean. Sci.
PD APR
PY 2013
VL 24
IS 2
SI SI
BP 233
EP 241
DI 10.3319/TAO.2012.09.26.03(SEC)
PG 9
WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences;
Oceanography
SC Geology; Meteorology & Atmospheric Sciences; Oceanography
GA 292IC
UT WOS:000329894400009
ER
PT J
AU Wu, CC
Liou, K
Plunkett, S
Fry, CD
Wu, ST
AF Wu, Chin-Chun
Liou, Kan
Plunkett, Simon
Fry, Craig Daniel
Wu, Shi-Tsan
TI Investigation of Solar/Heliospheric Anomalies Associated with the Solar
Minimum of 2007-2008
SO TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
LA English
DT Article
DE Interplanetary magnetic field; Solar cycle; Heliospheric current sheet;
Solar anomaly
ID HELIOSPHERIC CURRENT SHEET; CORONAL STREAMERS; WIND SPEED; CYCLE 23;
SIMULATION; FIELD; SUN
AB The unusually long-extended solar minimum between cycles 23 and 24 (from 2007 to 2008) yielded a number of anomalies with regard to solar/heliospheric phenomena wherein the solar wind magnetic field is 36% weaker than that for the previous solar cycle minimum (from 1996 to 1997) at 1 AU, the solar wind dynamic pressure is the lowest observed since the beginning of the space age, the unusually high tilted angle of the solar dipole, and the absence of a classical quiescent equatorial streamer belt. To understand the cause of the anomalies, we perform numerical simulation of a realistic inner heliosphere using a global three-dimensional, time-dependent, numerical model with observed solar inputs. It is suggested that these solar extremes are associated with (1) an inflated heliospheric current/plasma sheet (HCS/HPS) and (2) a decrease in the integrated fluxes of mass and magnetic field ejected from the Sun, which was manipulated by some unknown internal solar dynamics.
C1 [Wu, Chin-Chun; Plunkett, Simon] Naval Res Lab, Div Space Sci, Washington, DC USA.
[Liou, Kan] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
[Fry, Craig Daniel] Explorat Phys Int Inc, Huntsville, MD USA.
[Wu, Shi-Tsan] Univ Alabama, CSPAR, Huntsville, MD USA.
RP Wu, CC (reprint author), Naval Res Lab, Div Space Sci, Washington, DC USA.
EM chin-chun.wu@nrl.navy.mil
RI Liou, Kan/C-2089-2016
OI Liou, Kan/0000-0001-5277-7688
FU NASA's LWS program [NNH09AM46I]; NRL ISES program; 6.1 program; NSF
[AGS1153323]; NASA/EPSCor [NNx09AP74A]; University of Alabama Huntsville
Sub-Award under NASA [NNx09AP74A, SUB2010-045]; NSF Grant
FX We thank the Wind PI team and National Space Science Data Center at
Goddard Space Flight Center for management and providing Wind plasma and
magnetic field solar wind data. This study is supported partially by
NASA's LWS program via grants NNH09AM46I (CCW),NRL ISES and 6.1 programs
(CCW and SP). STW is supported by NSF AGS1153323, and NASA/EPSCor-2009,
NNx09AP74A Grant. Craig Daniel Fry's participation is supported by
University of Alabama Huntsville Sub-Award SUB2010-045 under NASA Grant
NNX09AP74A. Kan Liou is supported by NSF Grant. The Hakamada-Akasofu-Fry
solar wind model version 2 (HAFv2) was provided to NRL/SSD by a software
license from Exploration Physics International, Inc. (EXPI).
NR 27
TC 4
Z9 4
U1 0
U2 0
PU CHINESE GEOSCIENCE UNION
PI TAIPEI
PA PO BOX 23-59, TAIPEI 10764, TAIWAN
SN 1017-0839
EI 2311-7680
J9 TERR ATMOS OCEAN SCI
JI Terr. Atmos. Ocean. Sci.
PD APR
PY 2013
VL 24
IS 2
SI SI
BP 243
EP 252
DI 10.3319/TAO.2012.10.16.01(SEC)
PG 10
WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences;
Oceanography
SC Geology; Meteorology & Atmospheric Sciences; Oceanography
GA 292IC
UT WOS:000329894400010
ER
PT J
AU Bliss, T
Iwasaki, T
Bart-Smith, H
AF Bliss, Thomas
Iwasaki, Tetsuya
Bart-Smith, Hilary
TI Central Pattern Generator Control of a Tensegrity Swimmer
SO IEEE-ASME TRANSACTIONS ON MECHATRONICS
LA English
DT Article
DE Automatic control; nonlinear control systems; resonance
ID NATURAL OSCILLATIONS; SENSORY FEEDBACK; ENTRAINMENT; ROBOT; LOCOMOTION;
DYNAMICS; DEPLOYMENT; MECHANICS; RESONANCE; STIFFNESS
AB Rhythmic motion employed in animal locomotion is ultimately controlled by neuronal circuits known as central pattern generators (CPGs). It appears that these controllers produce efficient, oscillatory command signals by entraining to an efficient or economic gait via sensory feedback. This property is of great interest in the control of autonomous vehicles. The objective of this study is to experimentally validate synthesized CPG control of a tensegrity swimmer. The prestressed cables in a tensegrity structure provide a method of simultaneous actuation and sensing, analogous to the biological motor control mechanism of regulating muscle stiffness through motoneuron activation and sensing the resulting motion by stretch receptors. A three cell, class 2 tensegrity swimmer is designed and built, and open-loop control tests characterize its swimming performance. We then determine gaits for desired entrainment, and use a graphical design method to construct and test the closed-loop system. Lastly, we perform perturbed tests of the swimmer to illustrate the robustness of CPG control.
C1 [Bliss, Thomas] Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD 20817 USA.
[Iwasaki, Tetsuya] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[Bart-Smith, Hilary] Univ Virginia, Charlottesville, VA 22904 USA.
RP Bliss, T (reprint author), Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD 20817 USA.
EM tkb2c@virginia.edu; tiwasaki@ucla.edu; hb8h@virginia.edu
FU Office of Naval Research through the MURI [N00014-08-1-0642]; David and
Lucille Packard Foundation [2003-25897]; National Science Foundation
[NSF-0654070]; Achievement Rewards for College Scientists Metro
Washington Chapter; Virginia Space Grant Consortium
FX This work was supported in part by the Office of Naval Research through
the MURI program on Biologically-Inspired Autonomous Sea Vehicles under
Contract N00014-08-1-0642, in part by the David and Lucille Packard
Foundation under Contract 2003-25897, and in part by the National
Science Foundation under Contract NSF-0654070. The work of T. Bliss was
also supported by the Achievement Rewards for College Scientists Metro
Washington Chapter and the Virginia Space Grant Consortium.
NR 48
TC 13
Z9 13
U1 0
U2 18
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1083-4435
J9 IEEE-ASME T MECH
JI IEEE-ASME Trans. Mechatron.
PD APR
PY 2013
VL 18
IS 2
BP 586
EP 597
DI 10.1109/TMECH.2012.2210905
PG 12
WC Automation & Control Systems; Engineering, Manufacturing; Engineering,
Electrical & Electronic; Engineering, Mechanical
SC Automation & Control Systems; Engineering
GA 172MN
UT WOS:000321008100018
ER
PT J
AU Maurer, T
Wilson, DL
Driggers, RG
AF Maurer, Tana
Wilson, David L.
Driggers, Ronald G.
TI Search and detection modeling of military imaging systems
SO OPTICAL ENGINEERING
LA English
DT Article
DE search; target acquisition; target detection; ACQUIRE; ACQUIRE-LC;
DETECT-05; search time; time-limited search; clutter; image-based
modeling; targeting task performance metric
ID TIME-LIMITED SEARCH; PERFORMANCE; VISION; IMPROVEMENTS; CLUTTER
AB For more than 50 years, the U. S. Army RDECOM CERDEC Night Vision and Electronic Sensors Directorate (NVESD) has been studying the science behind the human processes of searching and detecting, and using that knowledge to develop and refine its models for military imaging systems. Modeling how human observers perform military tasks while using imaging systems in the field and linking that model with the physics of the systems has resulted in the comprehensive sensor models we have today. These models are used by the government, military, industry, and academia for sensor development, sensor system acquisition, military tactics development, and war-gaming. From the original hypothesis put forth by John Johnson in 1958, to modeling time-limited search, to modeling the impact of motion on target detection, to modeling target acquisition performance in different spectral bands, the concept of search has a wide-ranging history. Our purpose is to present a snapshot of that history; as such, it will begin with a description of the search-modeling task, followed by a summary of highlights from the early years, and concluding with a discussion of search and detection modeling today and the changing battlefield. Some of the topics to be discussed will be classic search, clutter, computational vision models and the ACQUIRE model with its variants. We do not claim to present a complete history here, but rather a look at some of the work that has been done, and this is meant to be an introduction to an extensive amount of work on a complex topic. That said, it is hoped that this overview of the history of search and detection modeling of military imaging systems pursued by NVESD directly, or in association with other government agencies or contractors, will provide both the novice and experienced search modeler with a useful historical summary and an introduction to current issues and future challenges. c 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
C1 [Maurer, Tana; Wilson, David L.] USA, Night Vis & Elect Sensors Directorate, Res Dev & Engn Command, CERDEC, Ft Belvoir, VA 22060 USA.
[Driggers, Ronald G.] USN, Res Lab, Washington, DC 20375 USA.
RP Maurer, T (reprint author), USA, Night Vis & Elect Sensors Directorate, Res Dev & Engn Command, CERDEC, 10221 Burbeck Rd, Ft Belvoir, VA 22060 USA.
EM info@nvl.army.mil
NR 37
TC 5
Z9 5
U1 0
U2 5
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 0091-3286
J9 OPT ENG
JI Opt. Eng.
PD APR
PY 2013
VL 52
IS 4
AR 041108
DI 10.1117/1.OE.52.4.041108
PG 11
WC Optics
SC Optics
GA 151DB
UT WOS:000319439700011
ER
PT J
AU Vollmerhausen, RH
Driggers, RG
Hodgkin, VA
AF Vollmerhausen, Richard H.
Driggers, Ronald G.
Hodgkin, Van A.
TI Night illumination in the near- and short-wave infrared spectral bands
and the potential for silicon and indium-gallium-arsenide imagers to
perform night targeting
SO OPTICAL ENGINEERING
LA English
DT Article
DE airglow; night illumination; night vision imaging; silicon focal plane
array; indium-gallium-arsenide
ID WIND IMAGING INTERFEROMETER; AIRGLOW EMISSIONS; TIDAL INFLUENCE;
MESOSPHERIC OH; TEMPERATURES; O-2; SATELLITE; OXYGEN; MODEL
AB On a moonless night, the primary source of natural illumination in the near infrared and short-wave infrared spectral bands is airglow. We use data gathered by astronomers and atmospheric scientists to estimate the magnitude and variability of airglow ground illumination. Based on that foundation, we analyze the target acquisition performance of imagers that use silicon and indium-gallium-arsenide focal plane arrays. (C) 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
C1 [Vollmerhausen, Richard H.] Univ Delaware, Newark, DE 19716 USA.
[Driggers, Ronald G.] USN, Res Lab, Washington, DC 20375 USA.
[Hodgkin, Van A.] USA, Res & Dev Command, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA USA.
RP Vollmerhausen, RH (reprint author), Univ Delaware, Newark, DE 19716 USA.
EM vollmerhausen@hughes.net
FU U.S. Army Research and Development Command, Night Vision and
Electronic-Sensors Directorate at Fort Belvoir, Virginia
FX This work has been funded by the U.S. Army Research and Development
Command, Night Vision and Electronic-Sensors Directorate at Fort
Belvoir, Virginia.
NR 48
TC 2
Z9 2
U1 1
U2 3
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 0091-3286
EI 1560-2303
J9 OPT ENG
JI Opt. Eng.
PD APR
PY 2013
VL 52
IS 4
AR 043202
DI 10.1117/1.OE.52.4.043202
PG 8
WC Optics
SC Optics
GA 151DB
UT WOS:000319439700015
ER
PT J
AU Sargent, PD
Campbell, JS
Richter, KE
McLay, RN
Koffman, RL
AF Sargent, Paul D.
Campbell, Justin S.
Richter, Kenneth E.
McLay, Robert N.
Koffman, Robert L.
TI Integrative Medical Practices for Combat-Related Posttraumatic Stress
Disorder
SO PSYCHIATRIC ANNALS
LA English
DT Article
ID PTSD; METAANALYSIS; MEDITATION; TRIAL
C1 [Sargent, Paul D.; Richter, Kenneth E.] USN, San Diego Med Ctr, OASIS Residential PTSD Program, San Diego, CA USA.
[Campbell, Justin S.] Space & Naval Warfare Syst Command, San Diego, CA USA.
[McLay, Robert N.] USN, San Diego Med Ctr, San Diego, CA USA.
[Koffman, Robert L.] Natl Intrepid Ctr Excellence, Dept Chief Clin Operat, Bethesda, MD USA.
RP Sargent, PD (reprint author), 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
EM Paul.Sargent@navsoc.socom.mil
OI Campbell, Justin/0000-0002-3471-9430
NR 33
TC 2
Z9 2
U1 0
U2 2
PU SLACK INC
PI THOROFARE
PA 6900 GROVE RD, THOROFARE, NJ 08086 USA
SN 0048-5713
J9 PSYCHIAT ANN
JI Psychiatr. Ann.
PD APR
PY 2013
VL 43
IS 4
BP 181
EP 187
DI 10.3928/00485713-20130403-10
PG 7
WC Psychiatry
SC Psychiatry
GA 164YK
UT WOS:000320448500010
ER
PT J
AU Shulman, I
Frolov, S
Anderson, S
Penta, B
Gould, R
Sakalaukus, P
Ladner, S
AF Shulman, Igor
Frolov, Sergey
Anderson, Stephanie
Penta, Brad
Gould, Rick
Sakalaukus, Peter
Ladner, Sherwin
TI Impact of bio-optical data assimilation on short-term coupled physical,
bio-optical model predictions
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
DE ocean data assimilation; upwelling; Coastal Processes; Ecosystem
dynamics; numerical modeling
ID OCEAN DATA ASSIMILATION; GULF-STREAM REGION; ECOSYSTEM MODEL;
HIGH-RESOLUTION; NORTH-ATLANTIC; KALMAN FILTER; REAL-TIME; COLOR; SEA;
CIRCULATION
AB Data assimilation experiments with the coupled physical, bio-optical model of Monterey Bay are presented. The objective of this study is to investigate whether the assimilation of satellite-derived bio-optical properties can improve the model predictions (phytoplankton population, chlorophyll) in a coastal ocean on time scales of 1-5 days. The Monterey Bay model consists of a physical model based on the Navy Coastal Ocean Model and a biochemical model which includes three nutrients, two phytoplankton groups (diatoms and small phytoplankton), two groups of zooplankton grazers, and two detrital pools. The Navy Coupled Ocean Data Assimilation system is used for the assimilation of physical observations. For the assimilation of bio-optical observations, we used reduced-order Kalman filter with a stationary forecast error covariance. The forecast error covariance is specified in the subspace of the multivariate (bio-optical, physical) empirical orthogonal functions estimated from a monthlong model run. With the assimilation of satellite-derived bio-optical properties (chlorophyll a or absorption due to phytoplankton), the model was able to reproduce intensity and tendencies in subsurface chlorophyll distributions observed at water sample locations in the Monterey Bay, CA. Data assimilation also improved agreement between the observed and model-predicted ratios between diatoms and small phytoplankton populations. Model runs with or without assimilation of satellite-derived bio-optical observations show underestimated values of nitrate as compared to the water sample observations. We found that an instantaneous update of nitrate based on statistical relations between temperature and nitrate corrected the model underestimation of the nitrate fields during the multivariate update.
C1 [Shulman, Igor; Anderson, Stephanie; Penta, Brad; Gould, Rick; Sakalaukus, Peter; Ladner, Sherwin] USN, Res Lab, Div Oceanog, Stennis Space Ctr, MS 39529 USA.
[Frolov, Sergey] USN, Res Lab, Monterey, CA USA.
RP Shulman, I (reprint author), USN, Res Lab, Div Oceanog, Stennis Space Ctr, MS 39529 USA.
EM igor.shulman@nrlssc.navy.mil
OI Frolov, Sergey/0000-0002-9081-1979
FU Naval Research Laboratory (NRL) projects; Bio-optical Studies of
Predictability and Assimilation in the Coastal Environment (BIOSPACE);
Modeling Dynamic Bio-Optical Layers In Coastal Systems (DYaBOLIC)
[61153N]; Developing Ensemble Methods to Estimate Uncertainties in
Remotely Sensed Optical Properties (DEMEN) [62435]; Department of
Defense High Performance Computing Initiative; David and Lucile Packard
Foundation; Office of Naval Research (ONR) [N00014-10-1-0424]
FX This research was funded through the Naval Research Laboratory (NRL)
projects, "Bio-optical Studies of Predictability and Assimilation in the
Coastal Environment (BIOSPACE)," "Modeling Dynamic Bio-Optical Layers In
Coastal Systems (DYaBOLIC)" under program element 61153N, and
"Developing Ensemble Methods to Estimate Uncertainties in Remotely
Sensed Optical Properties (DEMEN)" under programelement 62435. Our
thanks also go to Fei Chai and Lei Shi of UMaine for help with the
biochemical model. Thanks to all holders of moorings, gliders, AUV data,
and to the BIOSPACE members. We thank Ross N. Hoffman of AER and two
anonymous reviewers for comments that improved the paper. Computer time
for the numerical simulations was provided through a grant from the
Department of Defense High Performance Computing Initiative. SF's works
was supported by the David and Lucile Packard Foundation and the Office
of Naval Research (ONR) under grant N00014-10-1-0424. This manuscript is
NRL contribution 7330-12-1495.
NR 53
TC 14
Z9 14
U1 1
U2 14
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9275
EI 2169-9291
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD APR
PY 2013
VL 118
IS 4
BP 2215
EP 2230
DI 10.1002/jgrc.20177
PG 16
WC Oceanography
SC Oceanography
GA 163GN
UT WOS:000320324100041
ER
PT J
AU Abeykoon, AH
Noinaj, N
Chao, CC
Wang, GH
Chock, PB
Gucek, M
Ching, WM
Buchanan, SK
Yang, DCH
AF Abeykoon, Amila H.
Noinaj, Nicholas
Chao, Chien-Chung
Wang, Guanghui
Chock, P. Boon
Gucek, Marjan
Ching, Wei-Mei
Buchanan, Susan K.
Yang, David C. H.
TI Structural Insights of Outer Membrane Protein Methyltransferases from
Rickettsia
SO FASEB JOURNAL
LA English
DT Meeting Abstract
CT Joint Annual Meeting of the ASPET/BPS at Experimental Biology (EB)
CY APR 20-24, 2013
CL Boston, MA
SP ASPET, British Pharmacol Soc (BPS)
C1 [Abeykoon, Amila H.; Yang, David C. H.] Georgetown Univ, Washington, DC USA.
[Noinaj, Nicholas; Buchanan, Susan K.] NIDDK, NIH, Bethesda, MD USA.
[Wang, Guanghui; Chock, P. Boon; Gucek, Marjan] NHLBI, NIH, Bethesda, MD 20892 USA.
[Chao, Chien-Chung; Ching, Wei-Mei] USN, Viral & Rickettsial Dis Dept, Med Res Ctr, Silver Spring, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 1
PU FEDERATION AMER SOC EXP BIOL
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA
SN 0892-6638
J9 FASEB J
JI Faseb J.
PD APR
PY 2013
VL 27
MA 561.7
PG 1
WC Biochemistry & Molecular Biology; Biology; Cell Biology
SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other
Topics; Cell Biology
GA 157GG
UT WOS:000319883504021
ER
PT J
AU Florian, JP
Simmons, EE
Chon, KH
Faes, L
Shykoff, BE
AF Florian, John P.
Simmons, Erin E.
Chon, Ki H.
Faes, Luca
Shykoff, Barbara E.
TI Cardiovascular and autonomic responses to stressors following 6 hours of
water immersion
SO FASEB JOURNAL
LA English
DT Meeting Abstract
CT Joint Annual Meeting of the ASPET/BPS at Experimental Biology (EB)
CY APR 20-24, 2013
CL Boston, MA
SP ASPET, British Pharmacol Soc (BPS)
C1 [Florian, John P.; Simmons, Erin E.; Shykoff, Barbara E.] USN, Expt Diving Unit, Panama City, FL USA.
[Chon, Ki H.] Worcester Polytech Inst, Worcester, MA 01609 USA.
[Faes, Luca] Univ Trent, Trento, Italy.
RI Faes, Luca/E-5156-2012
NR 0
TC 0
Z9 0
U1 0
U2 0
PU FEDERATION AMER SOC EXP BIOL
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA
SN 0892-6638
J9 FASEB J
JI Faseb J.
PD APR
PY 2013
VL 27
MA 716.2
PG 1
WC Biochemistry & Molecular Biology; Biology; Cell Biology
SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other
Topics; Cell Biology
GA 156YK
UT WOS:000319860501266
ER
PT J
AU Jensen, A
Congalton, R
Niederberger, B
Jaworski, R
Kelly, K
AF Jensen, Andrew
Congalton, Robert
Niederberger, Brenda
Jaworski, Rebecca
Kelly, Karen
TI Genetics of physical performance in US Marines
SO FASEB JOURNAL
LA English
DT Meeting Abstract
CT Joint Annual Meeting of the ASPET/BPS at Experimental Biology (EB)
CY APR 20-24, 2013
CL Boston, MA
SP ASPET, British Pharmacol Soc (BPS)
C1 [Jensen, Andrew; Congalton, Robert; Niederberger, Brenda; Jaworski, Rebecca; Kelly, Karen] USN, Dept Warfighter Performance, Hlth Res Ctr, San Diego, CA 92152 USA.
[Jaworski, Rebecca] Marine Corps Syst Command, Quantico, VA USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU FEDERATION AMER SOC EXP BIOL
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA
SN 0892-6638
J9 FASEB J
JI Faseb J.
PD APR
PY 2013
VL 27
MA 1212.3
PG 1
WC Biochemistry & Molecular Biology; Biology; Cell Biology
SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other
Topics; Cell Biology
GA 156YK
UT WOS:000319860500480
ER
PT J
AU Kelly, K
Jensen, A
Niederberger, B
Congalton, R
Jaworski, R
AF Kelly, Karen
Jensen, Andrew
Niederberger, Brenda
Congalton, Robert
Jaworski, Rebecca
TI Overall stress response is reduced in US Marines following infantry
training
SO FASEB JOURNAL
LA English
DT Meeting Abstract
CT Joint Annual Meeting of the ASPET/BPS at Experimental Biology (EB)
CY APR 20-24, 2013
CL Boston, MA
SP ASPET, British Pharmacol Soc (BPS)
C1 [Kelly, Karen; Jensen, Andrew; Niederberger, Brenda; Congalton, Robert; Jaworski, Rebecca] USN, Dept Warfighter Performance, Hlth Res Ctr, San Diego, CA 92152 USA.
[Jaworski, Rebecca] Marine Corps Syst Command, Quantico, VA USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU FEDERATION AMER SOC EXP BIOL
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA
SN 0892-6638
J9 FASEB J
JI Faseb J.
PD APR
PY 2013
VL 27
MA 1132.26
PG 1
WC Biochemistry & Molecular Biology; Biology; Cell Biology
SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other
Topics; Cell Biology
GA 156YK
UT WOS:000319860505333
ER
PT J
AU Marrs, KL
Simmons, EE
Chon, KH
Shykoff, BE
Florian, JP
AF Marrs, Kevin L.
Simmons, Erin E.
Chon, Ki H.
Shykoff, Barbara E.
Florian, John P.
TI Heart rate variability at rest during repeated 6-hour water immersions
SO FASEB JOURNAL
LA English
DT Meeting Abstract
CT Joint Annual Meeting of the ASPET/BPS at Experimental Biology (EB)
CY APR 20-24, 2013
CL Boston, MA
SP ASPET, British Pharmacol Soc (BPS)
C1 [Marrs, Kevin L.; Simmons, Erin E.; Shykoff, Barbara E.; Florian, John P.] USN, Expt Div Unit, Panama City, FL USA.
[Chon, Ki H.] Worcester Polytech Inst, Worcester, MA 01609 USA.
NR 0
TC 0
Z9 0
U1 1
U2 4
PU FEDERATION AMER SOC EXP BIOL
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA
SN 0892-6638
J9 FASEB J
JI Faseb J.
PD APR
PY 2013
VL 27
MA 716.1
PG 1
WC Biochemistry & Molecular Biology; Biology; Cell Biology
SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other
Topics; Cell Biology
GA 156YK
UT WOS:000319860500561
ER
PT J
AU Shykoff, BE
Florian, JP
AF Shykoff, Barbara E.
Florian, John P.
TI Lag and Causality in Baroreceptor Response during Passive Head-up Tilt
SO FASEB JOURNAL
LA English
DT Meeting Abstract
CT Joint Annual Meeting of the ASPET/BPS at Experimental Biology (EB)
CY APR 20-24, 2013
CL Boston, MA
SP ASPET, British Pharmacol Soc (BPS)
C1 [Shykoff, Barbara E.; Florian, John P.] USN, Expt Diving Unit, Panama City, FL USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU FEDERATION AMER SOC EXP BIOL
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA
SN 0892-6638
J9 FASEB J
JI Faseb J.
PD APR
PY 2013
VL 27
MA 689.11
PG 1
WC Biochemistry & Molecular Biology; Biology; Cell Biology
SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other
Topics; Cell Biology
GA 156YK
UT WOS:000319860504260
ER
PT J
AU Goswami, R
Cheng, SF
Qadri, SB
Oh, E
Bussmann, K
AF Goswami, R.
Cheng, S. F.
Qadri, S. B.
Oh, E.
Bussmann, K.
TI TEM studies of microstructure, interfaces, and intermixing of
FePt/MgO/FePt/Pt/Cr(Ru) films
SO JOURNAL OF NANOPARTICLE RESEARCH
LA English
DT Article
DE FePt thin films; Perpendicular magnetic anisotropy (PMA);
High-resolution transmission electron microscopy; Microstructure;
Interfaces
ID MAGNETIC-PROPERTIES; FEPT NANOPARTICLES
AB We have investigated the microstructure, interfaces, and intermixing in sputter-deposited FePt/MgO/FePt/Pt/Cr(Ru)/SiN/Si magnetic tunnel junctions by high-resolution transmission electron microscopy (HRTEM) and correlated these results to the magnetic properties. Cr90Ru10 is used as a texturing layer for the growth of perpendicular magnetic anisotropy (PMA) films. HRTEM confirmed the formation of the desired [001] texture in cubic Cr90Ru10 as well as in the adjacent L1(0)-FePt layer using our growth methods. A 1.5 nm layer of MgO was deposited as a tunnel barrier for magnetic tunnel junction in an attempt to fabricate fully perpendicular tunnel junctions of these materials. The HRTEM observations, however, show that the MgO layer was partially crystalline but randomly oriented. The top FePt layer was also found to grow as discrete islands with random orientations and is mostly fcc crystal structure reducing the utility of this multilayer in PMA tunnel junction devices. The fine probe energy-dispersive X-ray spectroscopy showed the interdiffusion of Cr to Pt/FePt layers. The magnetic properties show out-of-plane coercivity larger than that of the in-plane values but with a loss of squareness, consistent with the loss of [001] texture and of L1(0) structure in the top magnetic layer.
C1 [Goswami, R.; Cheng, S. F.; Qadri, S. B.; Bussmann, K.] USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
[Oh, E.] USN, Res Lab, Opt Sci Div, Washington, DC 20375 USA.
RP Goswami, R (reprint author), USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
EM ramasis.goswami@nrl.navy.mil
FU Naval Research Laboratory
FX The authors gratefully acknowledge Naval Research Laboratory for support
of this work.
NR 10
TC 1
Z9 1
U1 2
U2 22
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 1388-0764
J9 J NANOPART RES
JI J. Nanopart. Res.
PD APR
PY 2013
VL 15
IS 4
AR UNSP 1480
DI 10.1007/s11051-013-1480-1
PG 7
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 139AS
UT WOS:000318554400002
ER
PT J
AU Staton, SJR
Terray, A
Collins, GE
Hart, SJ
AF Staton, Sarah J. R.
Terray, Alex
Collins, Greg E.
Hart, Sean J.
TI Orthogonal optical force separation simulation of particle and molecular
species mixtures under direct current electroosmotic driven flow for
applications in biological sample preparation
SO ELECTROPHORESIS
LA English
DT Article
DE COMSOL simulation; Electroosmosis; Molecular species separation; Optical
force; Particle separation
ID CHROMATOGRAPHY; FRACTIONATION
AB Presented here are the results from numerical simulations applying optical forces orthogonally to electroosmotically induced flow containing both molecular species and particles. Simulations were conducted using COMSOL v4.2a Multiphysics (R) software including the particle tracking module. The study addresses the application of optical forces to selectively remove particulates from a mixed sample stream that also includes molecular species in a pinched flow microfluidic device. This study explores the optimization of microfluidic cell geometry, magnitude of the applied direct current electric field, EOF rate, diffusion, and magnitude of the applied optical forces. The optimized equilibrium of these various contributing factors aids in the development of experimental conditions and geometry for future experimentation as well as directing experimental expectations, such as diffusional losses, separation resolution, and percent yield. The result of this work generated an optimized geometry with flow conditions leading to negligible diffusional losses of the molecular species while also being able to produce particle removal at near 100% levels. An analytical device, such as the one described herein with the capability to separate particulate and molecular species in a continuous, high-throughput fashion would be valuable by minimizing sample preparation and integrating gross sample collection seamlessly into traditional analytical detection methods.
C1 [Staton, Sarah J. R.; Terray, Alex; Collins, Greg E.; Hart, Sean J.] USN, Res Lab, Washington, DC 20375 USA.
RP Terray, A (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM terray@nrl.navy.mil
FU Office of Naval Research (ONR) through the Naval Research Laboratory
(NRL); National Research Council (NRC)
FX The authors would like to thank the Office of Naval Research (ONR) for
funding support of this effort through the Naval Research Laboratory
(NRL) as well as support from the National Research Council (NRC)
Post-doctoral Fellowship Program.
NR 25
TC 1
Z9 1
U1 1
U2 28
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0173-0835
J9 ELECTROPHORESIS
JI Electrophoresis
PD APR
PY 2013
VL 34
IS 8
BP 1175
EP 1181
DI 10.1002/elps.201200553
PG 7
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 142RO
UT WOS:000318815000008
PM 23404174
ER
PT J
AU Whitmer, S
Xu, A
McClatchey, S
AF Whitmer, Susan
Xu, Aurora
McClatchey, Scott
TI Reanalysis of refractive growth in pediatric pseudophakia and aphakia
SO JOURNAL OF AAPOS
LA English
DT Article
ID INTRAOCULAR-LENS IMPLANTATION; CATARACT-EXTRACTION; POWER CALCULATION;
AXIAL ELONGATION; MYOPIC SHIFT; CHILDHOOD; ACCURACY; EYES; REGRESSION;
FORMULAS
AB BACKGROUND The current model of refractive growth in children (RRG2) is calculated as the slope of aphakic refraction at the spectacle plane versus the logarithm of adjusted age. However, this model fails in infants because of the optical effect of vertex distance of a spectacle lens on the effective power at the cornea. In this study, we developed a new model of refractive growth (RRG3) that eliminates the optical effect of vertex distance on the RRG2 model.
METHODS We calculated RRG3 values for pseudophakic and aphakic eyes previously analyzed for RRG2. Inclusion criteria were age <= 10 years at the time of cataract surgery and follow-up time between measured refractions of at least 3.6 years and at least the age at first refraction plus 0.6 years. For both pseudophakic and aphakic eyes, we compared RRG3 values in children who had cataract surgery before age 6 months with those in children aged 6 months or older.
RESULTS A total of 78 pseudophakic and 70 aphakic eyes met the inclusion criteria. Ages at surgery ranged from 0.25 to 9 years, with a 9.5-year mean follow-up time. The mean RRG3 value was not significantly different between the surgical age groups for both pseudophakic eyes (P = 0.053) and aphakic eyes (P = 0.59).
CONCLUSIONS The RRG3 values were not significantly different between the surgical age groups for both pseudophakic and aphakic eyes. Consequently, RRG3 is theoretically applicable even in the small eyes of infants having surgery before 6 months of age.
C1 [Whitmer, Susan; Xu, Aurora; McClatchey, Scott] USN, Dept Ophthalmol, San Diego Med Ctr, San Diego, CA 92134 USA.
[Xu, Aurora] Byram Hills High Sch, Armonk, NY USA.
[McClatchey, Scott] Univ Hlth Sci, Uniformed Serv, Bethesda, MD USA.
[McClatchey, Scott] Loma Linda Univ, Med Ctr, Loma Linda, CA 92350 USA.
RP Whitmer, S (reprint author), USN, Bob Wilson Med Ctr, Ophthalmol Suite 202,34520 Bob Wilson Dr, San Diego, CA 92134 USA.
EM susan.whitmer@med.navy.mil
NR 26
TC 4
Z9 4
U1 1
U2 6
PU MOSBY-ELSEVIER
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1091-8531
J9 J AAPOS
JI J. AAPOS
PD APR
PY 2013
VL 17
IS 2
BP 153
EP 157
DI 10.1016/j.jaapos.2012.11.013
PG 5
WC Ophthalmology; Pediatrics
SC Ophthalmology; Pediatrics
GA 145OY
UT WOS:000319027700008
PM 23522942
ER
PT J
AU Anam, K
Lazdun, Y
Davis, P
Banas, R
Elster, E
Davis, T
AF Anam, K.
Lazdun, Y.
Davis, P.
Banas, R.
Elster, E.
Davis, T.
TI Amnion-Derived Multipotent Progenitor Cells Support Allograft Tolerance
Induction.
SO AMERICAN JOURNAL OF TRANSPLANTATION
LA English
DT Meeting Abstract
CT 13th American Transplant Congress (ATC)
CY MAY 18-22, 2013
CL Seattle, WA
C1 [Anam, K.; Lazdun, Y.; Davis, P.; Elster, E.; Davis, T.] USN, Med Redearch Ctr, Regenerat Med Dept, Silver Spring, MD USA.
[Banas, R.] Stemnion Inc, Pittsburgh, PA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1600-6135
J9 AM J TRANSPLANT
JI Am. J. Transplant.
PD APR
PY 2013
VL 13
SU 5
SI SI
BP 360
EP 360
PG 1
WC Surgery; Transplantation
SC Surgery; Transplantation
GA 134UL
UT WOS:000318240301316
ER
PT J
AU Gentry, S
Chow, E
Wickliffe, C
Massie, A
Leighton, T
Snyder, J
Israni, A
Kasiske, B
Segev, D
AF Gentry, S.
Chow, E.
Wickliffe, C.
Massie, A.
Leighton, T.
Snyder, J.
Israni, A.
Kasiske, B.
Segev, D.
TI Liver Transportation Time Model and Comparison with Cold Ischemia Time
SO AMERICAN JOURNAL OF TRANSPLANTATION
LA English
DT Meeting Abstract
CT 13th American Transplant Congress (ATC)
CY MAY 18-22, 2013
CL Seattle, WA
C1 [Gentry, S.; Chow, E.; Wickliffe, C.; Massie, A.; Segev, D.] Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA.
[Gentry, S.] USN Acad, Baltimore, MD USA.
[Snyder, J.; Israni, A.; Kasiske, B.] Univ Minnesota, Sch Publ Hlth, Minneapolis, MN USA.
[Leighton, T.; Snyder, J.; Israni, A.; Kasiske, B.] Sci Registry Transplant Recipients, Minneapolis, MN USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1600-6135
J9 AM J TRANSPLANT
JI Am. J. Transplant.
PD APR
PY 2013
VL 13
SU 5
SI SI
BP 516
EP 516
PG 1
WC Surgery; Transplantation
SC Surgery; Transplantation
GA 134UL
UT WOS:000318240301855
ER
PT J
AU Sanders, WM
Collins, MD
AF Sanders, William M.
Collins, Michael D.
TI Nonuniform depth grids in parabolic equation solutions
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID WAVE-EQUATION; PROPAGATION; INTERFACES; ALGORITHMS; SCATTERING
AB The parabolic wave equation is solved using a finite-difference solution in depth that involves a nonuniform grid. The depth operator is discretized using Galerkin's method with asymmetric hat functions. Examples are presented to illustrate that this approach can be used to improve efficiency for problems in ocean acoustics and seismo-acoustics. For shallow water problems, accuracy is sensitive to the precise placement of the ocean bottom interface. This issue is often addressed with the inefficient approach of using a fine grid spacing over all depth. Efficiency may be improved by using a relatively coarse grid with nonuniform sampling to precisely position the interface. Efficiency may also be improved by reducing the sampling in the sediment and in an absorbing layer that is used to truncate the computational domain. Nonuniform sampling may also be used to improve the implementation of a single-scattering approximation for sloping fluid-solid interfaces.
C1 [Sanders, William M.; Collins, Michael D.] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Collins, MD (reprint author), USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
EM mike.collins@nrlssc.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 16
TC 6
Z9 6
U1 0
U2 2
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD APR
PY 2013
VL 133
IS 4
BP 1953
EP 1958
DI 10.1121/1.4792489
PG 6
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 139BB
UT WOS:000318555300030
PM 23556565
ER
PT J
AU Turgut, A
Mignerey, PC
Goldstein, DJ
Schindall, JA
AF Turgut, Altan
Mignerey, Peter C.
Goldstein, David J.
Schindall, Jeffrey A.
TI Acoustic observations of internal tides and tidal currents in shallow
water
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID FIELD INTERFERENCE PATTERN; FREQUENCY-SHIFTS; SHELF; SEA
AB Significant acoustic travel-time variability and frequency shifts of acoustic intensity level curves in broadband signal spectrograms were measured in the East China Sea during the summer of 2008. The broadband pulses (270-330 Hz) were transmitted from a fixed source and received at a bottomed horizontal array, located at the 33 km range. The acoustic intensity level curves of the received signals indicate regular frequency shifts that are well correlated with the measured internal tides. Similarly, regular travel-time shifts of the acoustic mode arrivals correlate well with the barotropic tides and can be explained by tidal currents along the acoustic propagation track. These observations indicate the potential of monitoring internal tides and tidal currents using low-frequency acoustic signals propagating at long ranges.
C1 [Turgut, Altan; Mignerey, Peter C.; Goldstein, David J.; Schindall, Jeffrey A.] USN, Res Lab, Acoust Div, Washington, DC 20375 USA.
RP Turgut, A (reprint author), USN, Res Lab, Acoust Div, Washington, DC 20375 USA.
FU Office of Naval Research (ONR); R.O.K. Agency for Defense Development;
Korea Ocean Research and Development Institute
FX This work was supported by the Office of Naval Research (ONR), the
R.O.K. Agency for Defense Development, and the Korea Ocean Research and
Development Institute. We thank the captain and crew of the R/V Eardo
and R/V Sunjin for the excellent support throughout the experiment.
NR 11
TC 3
Z9 3
U1 1
U2 13
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD APR
PY 2013
VL 133
IS 4
BP 1981
EP 1986
DI 10.1121/1.4792141
PG 6
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 139BB
UT WOS:000318555300033
PM 23556568
ER
PT J
AU Fleming, ME
Waterman, SS
Lewandowski, LR
Chi, BB
AF Fleming, Mark E.
Waterman, Scott S.
Lewandowski, Louis R.
Chi, Benjamin B.
TI Use of 3-Dimensional Stereolithographic Polymer Models for Heterotopic
Ossification Surgical Excision
SO ORTHOPEDICS
LA English
DT Article
ID RISK-FACTORS; PREVALENCE; TRAUMA
AB Heterotopic ossification is a known complication of traumatic injuries. To minimize iatrogenic complications during excision, an understanding of anatomic relationships is essential. Current imaging modalities, such as computed tomography and plain radiographs, are limited to providing a 2-dimensional representation of a 3-dimensional problem. This study describes the benefits of 3-dimensional stereolithography in the perioperative management of symptomatic heterotopic ossification using models were that were fabricated based on high-resolution computed tomography scans. The models facilitated heterotopic ossification excision through frequent intraoperative reference, allowing the authors to avoid iatrogenic neurovascular injuries.
C1 [Fleming, Mark E.; Lewandowski, Louis R.; Chi, Benjamin B.] Walter Reed Natl Mil Med Ctr, Dept Orthopaed, Bethesda, MD USA.
[Fleming, Mark E.] Uniformed Serv Univ Hlth Sci, Bethesda, MD USA.
[Waterman, Scott S.] Carl R Darnall Army Med Ctr, Ft Hood, TX USA.
RP Fleming, ME (reprint author), USN, Dept Orthopaed, Walter Reed Natl Mil Med Ctr, 8901 Wisconsin Ave, Bethesda, MD 20889 USA.
EM drmefleming@msn.com
NR 11
TC 1
Z9 1
U1 0
U2 2
PU SLACK INC
PI THOROFARE
PA 6900 GROVE RD, THOROFARE, NJ 08086 USA
SN 0147-7447
J9 ORTHOPEDICS
JI Orthopedics
PD APR
PY 2013
VL 36
IS 4
BP 282
EP 286
DI 10.3928/01477447-20130327-06
PG 5
WC Orthopedics
SC Orthopedics
GA 140TO
UT WOS:000318678400031
PM 23590770
ER
PT J
AU Pan, Z
Jensen, KL
AF Pan, Z.
Jensen, K. L.
TI Modeling the evaporation rate of cesium off tungsten based controlled
porosity dispenser photocathodes
SO AIP ADVANCES
LA English
DT Article
DE atom-surface impact; binding energy; caesium; evaporation; monolayers;
photocathodes; photoemission; porosity; tungsten
ID DIFFUSION; CATHODES; SURFACES; FILMS
AB The evaporation of cesium from a tungsten surface is modeled using an effective one-dimensional potential well representation of the binding energy. The model accounts for both local and global interactions of cesium with the surface metal as well as with other cesium atoms. The theory is compared with the data of Taylor and Langmuir [Phys. Rev. 44, 423 (1933)] comparing evaporation rates to sub-monolayer surface coverage of cesium, gives good agreement, and reproduces the nonlinear behavior of evaporation with varying coverage and temperature. Copyright 2013 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. [http://dx.doi.org/10.1063/1.4800700]
C1 [Pan, Z.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Pan, Z.; Jensen, K. L.] USN, Res Lab, Washington, DC 20375 USA.
RP Pan, Z (reprint author), Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
RI Jensen, Kevin/I-1269-2015
OI Jensen, Kevin/0000-0001-8644-1680
FU Office of Naval Research; Joint Technology Office
FX We thank the Office of Naval Research and the Joint Technology Office
for their support, and E. Montgomery and D. Feldman for useful
discussions.
NR 16
TC 0
Z9 0
U1 0
U2 6
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 APR
PY 2013
VL 3
IS 4
AR 042105
DI 10.1063/1.4800700
PG 5
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 135ER
UT WOS:000318271100005
ER
PT J
AU Roh, JH
Giller, CB
Mott, PH
Roland, CM
AF Roh, J. H.
Giller, C. B.
Mott, P. H.
Roland, C. M.
TI Failure of classical elasticity in auxetic foams
SO AIP ADVANCES
LA English
DT Article
DE auxetics; elasticity; failure (mechanical); Poisson ratio; polymer
foams; shear modulus
ID POISSONS RATIO
AB Poisson's ratio, nu, was measured for four materials, a rubbery polymer, a conventional soft foam, and two auxetic foams. We find that for the first two materials, having nu >= 0.2, the experimental determinations of Poisson's ratio are in good agreement with values calculated from the shear and tensile moduli using the equations of classical elasticity. However, for the two auxetic materials (nu < 0), the equations of classical elasticity give values significantly different from the measured nu. We offer an interpretation of these results based on a recently published analysis of the bounds on Poisson's ratio for classical elasticity to be applicable. Copyright 2013 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. [http://dx.doi.org/10.1063/1.4802925]
C1 [Roh, J. H.; Giller, C. B.; Mott, P. H.; Roland, C. M.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Roh, JH (reprint author), USN, Res Lab, Div Chem, Code 6120, Washington, DC 20375 USA.
FU National Research Council; American Society for Engineering Education;
Office of Naval Research
FX We thank Daniel Fragiadakis for helping to fabricate the molds and
useful discussions. J. H. Roh and C. B. Giller acknowledge respective
postdoctoral fellowships from the National Research Council and the
American Society for Engineering Education. The work was supported by
the Office of Naval Research.
NR 17
TC 2
Z9 2
U1 1
U2 18
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 APR
PY 2013
VL 3
IS 4
AR 042126
DI 10.1063/1.4802925
PG 6
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 135ER
UT WOS:000318271100026
ER
PT J
AU Wicht, M
Schott, M
Pace, PE
AF Wicht, Matthias
Schott, Matthias
Pace, Phillip E.
TI Increasing the Flux Measurement Range of an RF-SQUID Resonant Detection
Circuit Using the Robust Symmetrical Number System
SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
LA English
DT Article
DE Flux measurement; low-temperature superconductor (LTS); radio frequency
superconducting quantum interference devices (RF SQUIDs); robust
symmetrical number system (RSNS)
AB The design and simulation of a new low temperature Niobium radio frequency superconducting quantum interference devices (RF-SQUID) flux measurement architecture concept that usesN = 3RF-SQUID rings (or channels) to significantly extend the range of the flux measurement capability beyond +/-Phi(0)/4 is presented. A resonant detection method based on a robust symmetrical number system (RSNS) preprocessing technique is shown to provide a large increase in the flux measurement range while producing a high-resolution representation of the input magnetic field. The RSNS preprocessing is a modular scheme in which a modulus number of comparators is used at the output of each RF SQUID. The number of comparators with logic 1 in each channel represents the integer values within each RSNS modulus sequence. When considered together, the integers within each sequence change one at a time at the next code position, resulting in an integer Gray code property. We show that the RSNS preprocessing has the feature that the maximum nonlinearity is less than a least significant bit.
C1 [Wicht, Matthias; Schott, Matthias] Fed Off Armament & Procurement, D-56073 Koblenz, Germany.
[Schott, Matthias] USN, Postgrad Sch, Monterey, CA 93943 USA.
[Pace, Phillip E.] USN, Dept Elect & Comp Engn, Postgrad Sch, Monterey, CA 93943 USA.
RP Wicht, M (reprint author), Fed Off Armament & Procurement, Ferdinand Sauerbruch Str 1, D-56073 Koblenz, Germany.
EM MatthiasWicht@BWB.org; Matthias1Schott@BWB.org; pepace@nps.edu
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. This paper was
recommended by Associate Editor B. Plourde.
NR 29
TC 2
Z9 2
U1 0
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1051-8223
EI 1558-2515
J9 IEEE T APPL SUPERCON
JI IEEE Trans. Appl. Supercond.
PD APR
PY 2013
VL 23
IS 2
AR 1602910
DI 10.1109/TASC.2013.2250283
PG 10
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA 137YW
UT WOS:000318475500004
ER
PT J
AU Chen, W
Lucke, R
AF Chen, Wei
Lucke, Robert
TI Out-of-Band Correction for Multispectral Remote Sensing
SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
LA English
DT Article
DE Bandpass effects; crosstalk; out-of-band correction transform (OBCT);
out-of-band (OOB); out-of-band correction; out-of-band effects;
out-of-band responses; visible infrared imager radiometer suite (VIIRS)
ID MODIS; OCEAN; INSTRUMENT
AB A general method for correcting out-of-band (OOB) effects to improve radiometric accuracy in multispectral sensors is proposed using an OOB correction transform (OBCT) developed according to linear systems theory. The correction for a particular channel is based on the intensities measured by all the channels. To recover the narrowband signals, the measured signals (with OOB effects) are partitioned by spectral subranges of in-bands and band-gaps. The OBCT matrix is derived using appropriate approximations for the band-gap integrals. For an N-channel multispectral sensor, OOB effects are corrected by applying an N x N OBCT matrix to themeasured signals. The OBCT matrix for bands M1-M7 of the VIIRS, which was successfully launched on Oct. 28, 2011, is presented, along with simulation results using hyperspectral data from the Airborne Visible InfraRed Imaging Spectrometer and Hyperspectral Imager for the Coastal Ocean sensors.
C1 [Chen, Wei; Lucke, Robert] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Chen, W (reprint author), USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM wei.chen@nrl.navy.mil
FU US Office of Naval Research; NOAA; NASA
FX This work was partially supported by the US Office of Naval Research and
the Joint Polar Satellite System of NOAA and NASA.
NR 14
TC 3
Z9 3
U1 0
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0196-2892
J9 IEEE T GEOSCI REMOTE
JI IEEE Trans. Geosci. Remote Sensing
PD APR
PY 2013
VL 51
IS 4
BP 2476
EP 2483
DI 10.1109/TGRS.2012.2208975
PN 2
PG 8
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA 137HY
UT WOS:000318427500027
ER
PT J
AU Bandyopadhyay, PR
Leinhos, HA
AF Bandyopadhyay, Promode R.
Leinhos, Henry A.
TI Propulsion efficiency of bodies appended with multiple flapping fins:
When more is less
SO PHYSICS OF FLUIDS
LA English
DT Article
ID BONITO SARDA-CHILIENSIS; RED MUSCLE; UNDERWATER VEHICLE; CONTROL-SYSTEM;
ANIMALS; POWER; AERODYNAMICS; PERFORMANCE; DYNAMICS; SUNFISH
AB Underwater animals propel themselves by flapping their pectoral and caudal fins in a narrow range of frequencies, given by Strouhal number St, to produce transitional vortex jets (St is generally expressed non-dimensionally as the product of flapping frequency and stroke (arc) length divided by forward speed). The organized nature of the selection of St and of the vortex jet is thought to maximize hydrodynamic efficiency, although the exact mechanism is not known. Our recent Stuart-Landau equation models, which have self-regulation properties, indicate that the fin and its jet vortices couple. Temporal maps of forces in single isolated fins show a bimodal behavior in certain ranges of the transitional Reynolds number; this behavior bears resemblance to neural bifurcation properties that owe their origin to the self-regulation mechanism. In view of our theoretical and biorobotic evidence of self-regulation in single flapping fins, we explore if this property is altered in a fin-appended body, the goal being to understand how the narrow selection of St, self-regulation, and maximization of hydrodynamic efficiency are related. Swimming vehicles of 1-m scale have been built where a rigid cylindrical body is appended with six flapping fins, three at each end. The fins are rigid, have a rounded leading edge and a laminar section (NACA 0012), and are hinged at one end. The planform is an abstracted version of the penguin wing; it has low aspect ratio and a chord Reynolds number that varies in the transitional range from 10 000 to 60 000. The fin geometry, Reynolds number range, and the nonflexible nature of the main body are in common with those in penguins, and the length and displacement volume are similar to those of sharks. The maximum hydrodynamic efficiency of the fin-appended body (0.40) is lower than that of the single fin (0.57), but is close to that of a fish using several fins. The propulsion density (kW/m(3) of displacement volume) of the fin-appended cylinder is similar to that of a cruising shark. If we allow comparison of electrical versus thermal measurements, the total efficiency of the fin-appended body is similar to that of the damselfly and dragonfly, which are also based on vortex propulsion. The fin force fluctuations are modeled by a van der Pol oscillator. Measured phase maps of force fluctuation versus its time derivative correlate with the Strouhal numbers. Until stabilization, the maximum hydrodynamic efficiency of the fin-appended body increases with fin Reynolds number in a staircase pattern whose boundaries correlate with similar transitional sub-regimes in single fins, including the bimodal sub-regimes, thereby relating efficiency with the self-regulating jet vortex oscillators. At low Reynolds numbers, the peak of hydrodynamic efficiency remains flat over a wide range of St, becoming steeper at higher Reynolds numbers with the maximum occurring at lower values of St. The modeling shows that for self-regulation, future biorobotic design should focus on the reduction of structural damping and on a fin-body assembly that has reciprocal energetic interaction with the shed vortex. [http://dx.doi.org/10.1063/1.4802495]
C1 [Bandyopadhyay, Promode R.; Leinhos, Henry A.] USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Bandyopadhyay, PR (reprint author), USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
FU U.S. Office of Naval Research (ONR) Bio-inspired Autonomous Systems
Program [ONR 341]
FX This work was sponsored by the U.S. Office of Naval Research (ONR)
Bio-inspired Autonomous Systems Program, Dr. Thomas McKenna (ONR 341).
Dr. M. Boller is thanked for the fish muscle data processing and Mr.
Joshua Hansen is thanked for MATLAB assistance. Professor George Lauder
and Dr. Peter Madden are thanked for providing the fish hydrodynamic
efficiency data. Dr. Aren M. Hellum is thanked for reading the paper.
NR 43
TC 4
Z9 4
U1 2
U2 34
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-6631
J9 PHYS FLUIDS
JI Phys. Fluids
PD APR
PY 2013
VL 25
IS 4
AR 041902
DI 10.1063/1.4802495
PG 23
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 134VF
UT WOS:000318242800004
ER
PT J
AU DuBois, AM
Arnold, I
Thomas, E
Tejero, E
Amatucci, WE
AF DuBois, A. M.
Arnold, I.
Thomas, E., Jr.
Tejero, E.
Amatucci, W. E.
TI Electron-ion hybrid instability experiment upgrades to the Auburn Linear
Experiment for Instability Studies
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article
ID SHEET BOUNDARY-LAYER; REVERSED-FIELD PINCH; VELOCITY-SHEAR; FLOW SHEAR;
LABORATORY PLASMA; CYCLOTRON WAVES; H-MODE; TURBULENCE; FREQUENCY;
ACCELERATION
AB The Auburn Linear EXperiment for Instability Studies (ALEXIS) is a laboratory plasma physics experiment used to study spatially inhomogeneous flows in a magnetized cylindrical plasma column that are driven by crossed electric (E) and magnetic (B) fields. ALEXIS was recently upgraded to include a small, secondary plasma source for a new dual source, interpenetrating plasma experiment. Using two plasma sources allows for highly localized electric fields to be made at the boundary of the two plasmas, inducing strong E x B velocity shear in the plasma, which can give rise to a regime of instabilities that have not previously been studied in ALEXIS. The dual plasma configuration makes it possible to have independent control over the velocity shear and the density gradient. This paper discusses the recent addition of the secondary plasma source to ALEXIS, as well as the plasma diagnostics used to measure electric fields and electron densities. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4799288]
C1 [DuBois, A. M.; Arnold, I.; Thomas, E., Jr.] Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
[Tejero, E.; Amatucci, W. E.] USN, Plasma Phys Div, Res Lab, Washington, DC 20375 USA.
RP DuBois, AM (reprint author), Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
EM amd0012@tigermail.auburn.edu
FU Defense Threat Reduction Agency [HDTRA1-10-1-0019]; Department of Energy
- Office of Fusion Energy Sciences [DE-FG02-00ER54476]
FX This work is supported by grants from the Defense Threat Reduction
Agency through Grant No. HDTRA1-10-1-0019 and the Department of Energy -
Office of Fusion Energy Sciences through Grant No. DE-FG02-00ER54476.
NR 53
TC 8
Z9 8
U1 0
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD APR
PY 2013
VL 84
IS 4
AR 043503
DI 10.1063/1.4799288
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 134UQ
UT WOS:000318240900019
PM 23635192
ER
PT J
AU Provencher, MT
McCormick, F
Dewing, C
McIntire, S
Solomon, D
AF Provencher, Matthew T.
McCormick, Frank
Dewing, Christopher
McIntire, Sean
Solomon, Daniel
TI A Prospective Analysis of 179 Type 2 Superior Labrum Anterior and
Posterior Repairs Outcomes and Factors Associated With Success and
Failure
SO AMERICAN JOURNAL OF SPORTS MEDICINE
LA English
DT Article
DE superior labrum anterior and posterior; biceps tenotomy; biceps
tenodesis; arthroscopy; surgical outcomes
ID II SLAP LESIONS; QUALITY-OF-LIFE; ARTHROSCOPIC REPAIR; SHOULDER
AB Background: There is a paucity of type 2 superior labrum anterior and posterior (SLAP) surgical outcomes with prospective data.
Purpose: To prospectively analyze the clinical outcomes of the arthroscopic treatment of type 2 SLAP tears in a young, active patient population, and to determine factors associated with treatment success and failure.
Study Design: Case-control study; Level of evidence, 3.
Methods: Over a 4-year period, 225 patients with a type 2 SLAP tear were prospectively enrolled. Two sports/shoulderfellowship-trained orthopaedic surgeons performed repairs with suture anchors and a vertical suture construct. Patients were excluded if they underwent any additional repairs, including rotator cuff repair, labrum repair outside of the SLAP region, biceps tenodesis or tenotomy, or distal clavicle excision. Dependent variables were preoperative and postoperative assessments with the American Shoulder and Elbow Surgeons (ASES), Single Assessment Numeric Evaluation (SANE), and Western Ontario Shoulder Instability (WOSI) scores and independent physical examinations. A failure analysis was conducted to determine factors associated with failure: age, mechanism of injury, preoperative outcome scores, and smoking. Failure was defined as revision surgery, mean ASES score below 70, or an inability to return to sports and work duties, which was assessed statistically with the Student t test and stepwise logarithmic regression.
Results: There were 179 of 225 patients who completed the follow-up for the study (80%) at a mean of 40.4 months (range, 26-62 months). The mean preoperative scores (WOSI, 54%; SANE, 50%; ASES, 65) improved postoperatively (WOSI, 82%; SANE, 85%; ASES, 88) (P< .01). The mean postoperative range of motion was 159 degrees of flexion, 151 degrees of abduction, and 51 degrees of external rotation at the side, which was less than the mean preoperative range of motion (164 degrees of flexion, 166 degrees of abduction, and 56 degrees of external rotation at the side). Of the 179 patients, 66 patients (36.8%) met failure criteria. Fifty patients elected revision surgery. Advanced age within the cohort (>36 years) was the only factor associated with a statistically significant increase in the incidence of failure. Those who were deemed failed had a mean age of 39.2 years (range, 29-45 years) versus those who were deemed healed with a mean age of 29.7 years (range, 18-36 years) (P < .001). The relative risk for failure for patients older than 36 years was 3.45 (95% CI, 2.0-4.9).
Conclusion: Arthroscopic SLAP repair provides a clinical and statistically significant improvement in shoulder outcomes. However, a reliable return to the previous activity level is limited; 37% of patients had failure, with a 28% revision rate. Age greater than 36 years was associated with a higher chance of failure. Additional work is necessary to determine the optimal diagnosis, indications, and surgical management for those with SLAP injuries.
C1 [Provencher, Matthew T.; Dewing, Christopher; McIntire, Sean] USN, San Diego Med Ctr, Dept Orthoped Surg, Sports Med Div, San Diego, CA 92134 USA.
[McCormick, Frank] Midwest Orthoped Rush, Rush Orthoped Sports Med Fellowship Program, Chicago, IL USA.
[Solomon, Daniel] Marin Orthoped & Sports Med, Novato, CA USA.
RP Provencher, MT (reprint author), USN, San Diego Med Ctr, Dept Orthopaed Surg, 34800 Bob Wilson Dr Ste 112, San Diego, CA 92134 USA.
EM matthew.provencher@med.navy.mil
FU AOSSM Young Investigators grant; AANA research grant; OREF grant
FX One or more of the authors has declared the following potential conflict
of interest or source of funding: Dr Provencher is affiliated with the
following: AOSSM (board of directors, research), SOMOS (past president),
AAOS (publications), BOS (research), ISAKOS (upper extremity), and AANA
(program/education). He also received the following research support:
AOSSM Young Investigators grant (2005), AANA research grant (2008,
2006), and OREF grant (2002, 2004, 2011). Moreover, he is involved with
the following: Elsevier (deputy editor, Arthroscopy), JSES, JBJS, JAAOS,
Slack (orthopedics, JKS), and SAGE (AJSM). Dr Solomon participates in
the following: Arthroscopy (editorial board) and AOSSM (board of
directors). He has also received honoraria from Arthrex and Pacific
Medical for educational presentations within the past 5 years.
NR 23
TC 38
Z9 38
U1 1
U2 17
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0363-5465
J9 AM J SPORT MED
JI Am. J. Sports Med.
PD APR
PY 2013
VL 41
IS 4
BP 880
EP 886
DI 10.1177/0363546513477363
PG 7
WC Orthopedics; Sport Sciences
SC Orthopedics; Sport Sciences
GA 135NR
UT WOS:000318295500029
PM 23460326
ER
PT J
AU Neta, B
Scott, M
AF Neta, Beny
Scott, Melvin
TI On a family of Halley-like methods to find simple roots of nonlinear
equations
SO APPLIED MATHEMATICS AND COMPUTATION
LA English
DT Article
DE Basin of attraction; Simple roots; Nonlinear equations; Halley method;
Euler-Chebyshev method
ID GEOMETRY; DYNAMICS
AB There are many methods for solving a nonlinear algebraic equation. Here we introduce a family of Halley-like methods and show that Euler-Chebyshev and BSC are just members of the family. We discuss the conjugacy maps and the effect of the extraneous roots on the basins of attraction. Published by Elsevier Inc.
C1 [Neta, Beny] USN, Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
RP Neta, B (reprint author), USN, Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM bneta@nps.edu; mscott8223@atmc.net
NR 32
TC 4
Z9 4
U1 1
U2 2
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0096-3003
EI 1873-5649
J9 APPL MATH COMPUT
JI Appl. Math. Comput.
PD APR 1
PY 2013
VL 219
IS 15
BP 7940
EP 7944
DI 10.1016/j.amc.2013.02.035
PG 5
WC Mathematics, Applied
SC Mathematics
GA 132EW
UT WOS:000318051700003
ER
PT J
AU Laming, JM
AF Laming, J. M.
TI On the detectability of Fe-57 axion-photon mode conversion in the Sun
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE elementary particles; Sun: particle emission; Sun: X-rays, gamma rays
ID STRONG CP-PROBLEM; FAMILY SYMMETRY; INVARIANCE; GENERATIONS; SN-1987A
AB Aims. The purpose of this paper is to assess the feasibility of axion detection by X-ray spectroscopy of the sun.
Methods. We review the theory of axion-photon mode conversion with special attention to axions emitted in the 14.4 keV M1 decay of Fe-57 at the solar center. These then mode convert to photons in the outer layers of the solar envelope, and may in principle be detected subsequently as X-rays.
Results. For axion masses above about 10(-4) eV, resonant mode conversion at a layer where the axion mass matches the local electron plasma frequency is necessary. For axion masses above about 10(-2) eV, this mode conversion occurs too deep in the solar atmosphere for the resulting photon to escape the solar surface and be detected before Compton scattering obscures the line. At the (detectable) axion masses below this, the flux of mode converted photons predicted by axion models appears to be too low for detection to be feasible with current instrumentation. Nonresonant mode conversion for axion masses below 10(-4) eV is also plausible, but with still lower predicted fluxes, since the axion coupling constant is related to its mass.
Conclusions. Prospects for meaningful constraints on massive axion parameters from X-ray observations of this transition from the Sun do not appear to be promising. However parameters for massless counterparts (e. g. the "arion") may still result from such observations. It may mode convert in the outer layers of the solar atmosphere, but is not restricted by this to have a small coupling constant.
C1 USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Laming, JM (reprint author), USN, Res Lab, Div Space Sci, Code 7684, Washington, DC 20375 USA.
EM laming@nrl.navy.mil
FU basic research funds of the Office of Naval Research
FX This work has been supported by basic research funds of the Office of
Naval Research.
NR 35
TC 0
Z9 0
U1 0
U2 4
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 0004-6361
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD APR
PY 2013
VL 552
AR A139
DI 10.1051/0004-6361/201220358
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 130JW
UT WOS:000317912000138
ER
PT J
AU Knaff, JA
DeMaria, M
Sampson, CR
Peak, JE
Cummings, J
Schubert, WH
AF Knaff, John A.
DeMaria, Mark
Sampson, Charles R.
Peak, James E.
Cummings, James
Schubert, Wayne H.
TI Upper Oceanic Energy Response to Tropical Cyclone Passage
SO JOURNAL OF CLIMATE
LA English
DT Article
ID SEA-SURFACE TEMPERATURE; WESTERN NORTH PACIFIC; INTENSITY PREDICTION
SCHEME; ENVIRONMENTAL-CONDITIONS; HURRICANE GILBERT; MAXIMUM INTENSITY;
THERMAL STRUCTURE; DATA ASSIMILATION; PART I; VARIABILITY
AB The upper oceanic temporal response to tropical cyclone (TC) passage is investigated using a 6-yr daily record of data-driven analyses of two measures of upper ocean energy content based on the U.S. Navy's Coupled Ocean Data Assimilation System and TC best-track records. Composite analyses of these data at points along the TC track are used to investigate the type, magnitude, and persistence of upper ocean response to TC passage, and to infer relationships between routinely available TC information and the upper ocean response. Upper oceanic energy decreases in these metrics are shown to persist for at least 30 days-long enough to possibly affect future TCs. Results also indicate that TC kinetic energy (KE) should be considered when assessing TC impacts on the upper ocean, and that existing TC best-track structure information, which is used here to estimate KE, is sufficient for such endeavors. Analyses also lead to recommendations concerning metrics of upper ocean energy. Finally, parameterizations for the lagged, along-track, upper ocean response to TC passage are developed. These show that the sea surface temperature (SST) is best related to the KE and the latitude whereas the upper ocean energy is a function of KE, initial upper ocean energy conditions, and translation speed. These parameterizations imply that the 10-day lagged SST cooling is approximately 0.7 degrees C for a "typical'' TC at 30 degrees latitude, whereas the same storm results in 10-day (30-day) lagged decreases of upper oceanic energy by about 12 (7) kJ cm(-2) and a 0.5 degrees C (0.3 degrees C) cooling of the top 100 m of ocean.
C1 [Knaff, John A.; DeMaria, Mark] NOAA, NESDIS, Reg & Mesoscale Meteorol Branch, Ft Collins, CO USA.
[Sampson, Charles R.; Peak, James E.; Cummings, James] USN, Res Lab, Monterey, CA USA.
[Schubert, Wayne H.] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA.
RP Knaff, JA (reprint author), Colorado State Univ, NOAA, NESDIS, RAMMB, Campus Delivery 1375, Ft Collins, CO 80523 USA.
EM john.knaff@noaa.gov
RI Knaff, John /F-5599-2010; DeMaria, Mark/F-5583-2010
OI Knaff, John /0000-0003-0427-1409;
FU Office of Naval Research; NOAA's Hurricane Forecast Improvement Program
through the National Ocean Partnership Program
FX The views, opinions, and findings contained in this report are those of
the authors and should not be construed as an official National Oceanic
and Atmospheric Administration or U.S. government position, policy, or
decision. The authors thank Chris Landsea and the other two anonymous
reviewers for their constructive comments and for ultimately improving
the original manuscript. This work is funded by the Office of Naval
Research and NOAA's Hurricane Forecast Improvement Program through the
National Ocean Partnership Program.
NR 53
TC 14
Z9 14
U1 1
U2 19
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0894-8755
J9 J CLIMATE
JI J. Clim.
PD APR
PY 2013
VL 26
IS 8
BP 2631
EP 2650
DI 10.1175/JCLI-D-12-00038.1
PG 20
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 130XX
UT WOS:000317954700015
ER
PT J
AU Johnson, BJ
Leska, IA
Melde, BJ
Siefert, RL
Malanoski, AP
Moore, MH
Taft, JR
Deschamps, JR
AF Johnson, Brandy J.
Leska, Iwona A.
Melde, Brian J.
Siefert, Ronald L.
Malanoski, Anthony P.
Moore, Martin H.
Taft, Jenna R.
Deschamps, Jeffrey R.
TI Extraction of Perchlorate Using Porous Organosilicate Materials
SO MATERIALS
LA English
DT Article
DE periodic mesoporous organosilica; perchlorate; solid phase extraction;
groundwater monitoring
ID SILICATE MATERIALS; MESOPOROUS SILICA; ADSORPTION; REMOVAL
AB Sorbent materials were developed utilizing two morphological structures, comprising either hexagonally packed pores (HX) or a disordered pore arrangement (CF). The sorbents were functionalized with combinations of two types of alkylammonium groups. When capture of perchlorate by the sorbents was compared, widely varying performance was noted as a result of differing morphology and/or functional group loading. A material providing improved selectivity for perchlorate over perrhenate was synthesized with a CF material using N-trimethoxysilylpropyl-N,N,N-trimethylammonium chloride. Materials were applied in batch and column formats. Binding isotherms followed the behavior expected for a system in which univalent ligands of varying affinity compete for immobilized sites. Performance of the sorbents was also compared to that of commercial Purolite materials.
C1 [Johnson, Brandy J.; Melde, Brian J.; Malanoski, Anthony P.; Moore, Martin H.; Deschamps, Jeffrey R.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Leska, Iwona A.; Taft, Jenna R.] NOVA Res Inc, Alexandria, VA 22308 USA.
[Siefert, Ronald L.] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
RP Johnson, BJ (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
EM brandy.white@nrl.navy.mil; iwona.leska.ctr@nrl.navy.mil;
brian.melde@nrl.navy.mil; siefert@usna.edu;
anthony.malanoski@nrl.navy.mil; martin.moore@nrl.navy.mil;
jennartaft@gmail.com; jeffrey.deschamps@nrl.navy.mil
RI Malanoski, Anthony/C-7814-2011;
OI Malanoski, Anthony/0000-0001-6192-888X; Deschamps,
Jeffrey/0000-0001-5845-0010
FU NRL-USNA faculty exchange program (GLISP); U.S. DoD Strategic
Environmental Research and Development Program (SERDP) [ER-1604]
FX The authors would like to thank M. Malanoski of Fulton, MD for providing
the groundwater samples utilized in these experiments. R. L. Siefert was
supported through the NRL-USNA faculty exchange program (GLISP). This
research was sponsored by the U.S. DoD Strategic Environmental Research
and Development Program (SERDP; ER-1604). We applied the SDC approach
("sequence-determines-credit") for determining the sequence of authors
[27]. The views expressed here are those of the authors and do not
represent those of the US Navy, the US Department of Defense, or the US
Government.
NR 27
TC 0
Z9 0
U1 0
U2 18
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 1996-1944
J9 MATERIALS
JI Materials
PD APR
PY 2013
VL 6
IS 4
BP 1403
EP 1419
DI 10.3390/ma6041403
PG 17
WC Materials Science, Multidisciplinary
SC Materials Science
GA 131TE
UT WOS:000318018200012
ER
PT J
AU Woods, AS
Colsch, B
Jackson, SN
Post, J
Baldwin, K
Roux, A
Hoffer, B
Cox, BM
Hoffer, M
Rubovitch, V
Pick, CG
Schultz, JA
Balaban, C
AF Woods, Amina S.
Colsch, Benoit
Jackson, Shelley N.
Post, Jeremy
Baldwin, Kathrine
Roux, Aurelie
Hoffer, Barry
Cox, Brian M.
Hoffer, Michael
Rubovitch, Vardit
Pick, Chaim G.
Schultz, J. Albert
Balaban, Carey
TI Gangliosides and Ceramides Change in a Mouse Model of Blast Induced
Traumatic Brain Injury
SO ACS CHEMICAL NEUROSCIENCE
LA English
DT Article
ID TANDEM MASS-SPECTROMETRY; ELECTROSPRAY-IONIZATION; PRESSURE; SYSTEM
AB Explosive detonations generate atmospheric pressure changes that produce nonpenetrating blast induced "mild" traumatic brain injury (bTBI). The structural basis for mild bTBI has been extremely controversial. The present study applies matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging to track the distribution of gangliosides in mouse brain tissue that were exposed to very low level of explosive detonations (2.5-5.5 psi peak overpressure). We observed major increases of the ganglioside GM2 in the hippocampus, thalamus, and hypothalamus after a single blast exposure. Moreover, these changes were accompanied by depletion of ceramides. No neurological or brain structural signs of injury could be inferred using standard light microscopic techniques. The first source of variability is generated by the Latency between blast and tissue sampling (peak intensity of the blast wave). These findings suggest that subtle molecular changes in intracellular membranes and plasmalemma compartments may be biomarkers for biological responses to mild bTBI. This is also the first report of a GM2 increase in the brains of mature mice from a nongenetic etiology.
C1 [Woods, Amina S.; Colsch, Benoit; Jackson, Shelley N.; Post, Jeremy; Baldwin, Kathrine; Roux, Aurelie] NIDA, IRP, Struct Biol Unit, NIH, Baltimore, MD 21224 USA.
[Hoffer, Barry] Case Western Reserve Univ, Cleveland, OH 44106 USA.
[Cox, Brian M.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
[Hoffer, Michael] US Naval Hosp, San Diego, CA USA.
[Rubovitch, Vardit; Pick, Chaim G.] Tel Aviv Univ, IL-69978 Tel Aviv, Israel.
[Balaban, Carey] Univ Pittsburgh, Pittsburgh, PA USA.
[Woods, Amina S.; Post, Jeremy; Cox, Brian M.] Ctr Neurosci & Regenerat Med, Rockville, MD USA.
[Schultz, J. Albert] Ionwerks Inc, Houston, TX USA.
RP Woods, AS (reprint author), NIDA, IRP, NIH, 333 Cassell Dr,Room 1120, Baltimore, MD 21224 USA.
EM awoods@mail.nih.gov
OI Balaban, Carey/0000-0002-3570-3844
FU Intramural Research Program of the National Institute on Drug Abuse,
NIH; Center for Neuroscience and Regenerative Medicine, Bethesda, MD
(Department of Defense) through the Henry M. Jackson Foundation for the
Advancement of Military Medicine; Office of National Drug Control Policy
(ONDCP); SBIR Phase II NIH-NIDA [1RC3DA031431]
FX This research was supported by the Intramural Research Program of the
National Institute on Drug Abuse, NIH, and by the Center for
Neuroscience and Regenerative Medicine, Bethesda, MD (Department of
Defense) through the Henry M. Jackson Foundation for the Advancement of
Military Medicine. The authors thank the Office of National Drug Control
Policy (ONDCP) for instrumentation funding, without which this and other
projects could not have been accomplished. J.A.S. and C.B. acknowledge
funding from SBIR Phase II NIH-NIDA grant 1RC3DA031431.
NR 24
TC 24
Z9 24
U1 5
U2 41
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1948-7193
J9 ACS CHEM NEUROSCI
JI ACS Chem. Neurosci.
PD APR
PY 2013
VL 4
IS 4
BP 594
EP 600
DI 10.1021/cn300216h
PG 7
WC Biochemistry & Molecular Biology; Chemistry, Medicinal; Neurosciences
SC Biochemistry & Molecular Biology; Pharmacology & Pharmacy; Neurosciences
& Neurology
GA 129VV
UT WOS:000317873000009
PM 23590251
ER
PT J
AU Chandrasekhara, MS
McLain, BK
AF Chandrasekhara, M. S.
McLain, B. K.
TI Aerodynamic studies over a manoeuvring UCAV 1303 configuration
SO AERONAUTICAL JOURNAL
LA English
DT Article
AB The flow past an unmanned combat air vehicle (UCAV) 1303 was investigated in a water tunnel in an effort to understand the complex flow field. The UCAV 1303 is characterised by a non slender, 47 degrees swept-leading-edge delta wing, with a cranked trailing edge, a cropped wing tip and a fuselage. It also has no vertical tail. Dye visualisation pictures and five-axis strain gage load data were obtained on a 1:72 scale model in both steady flow and while the model executed preprogrammed manoeuvres. From the strain gage data, body axis force and moment data were derived. In addition to some similarities, comparison of the flow features observed with those of more well known slender delta wing flows showed some remarkable differences such as tip-stall, the presence of two like-sense vortices on the same side of the wing, their simultaneous spiral and bubble bursting. This paper predominantly discusses the flow visualisation results and attempts to correlate the load data to some of the observed flow features.
C1 [Chandrasekhara, M. S.; McLain, B. K.] USN, Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA USA.
RP Chandrasekhara, MS (reprint author), USN, Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA USA.
EM mchandra@nps.edu
FU Singapore TDSI/Temasek Group under a CRADA [TDSI/07-005/1A]; US Naval
Postgraduate School
FX Funding for the project (TDSI/07-005/1A) was provided by the Singapore
TDSI/Temasek Group under a CRADA with the US Naval Postgraduate School.
This is gratefully acknowledged. The authors express their thanks to the
USAF for supplying the model geometry file. The authors also thank LT.
Phil Sosebee, US Navy & NPS for successfully duplicating and confirming
some of the earlier results.
NR 14
TC 1
Z9 1
U1 1
U2 11
PU ROYAL AERONAUTICAL SOC
PI LONDON
PA 4 HAMILTON PL, LONDON W1J 7BQ, ENGLAND
SN 0001-9240
J9 AERONAUT J
JI Aeronaut. J.
PD APR
PY 2013
VL 117
IS 1190
BP 445
EP 465
PG 21
WC Engineering, Aerospace
SC Engineering
GA 129UP
UT WOS:000317869800005
ER
PT J
AU Romero, RA
Goodman, NA
AF Romero, Ric A.
Goodman, Nathan A.
TI Cognitive Radar Network: Cooperative Adaptive Beamsteering for
Integrated Search-and-Track Application
SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
LA English
DT Article
ID WAVE-FORM DESIGN; TARGET RECOGNITION
AB Cognitive radar (CR) is a paradigm shift from a traditional radar system in that previous knowledge and current measurements obtained from the radar channel are used to form a probabilistic understanding of its environment. Moreover, CR incorporates this probabilistic knowledge into its task priorities to form illumination and probing strategies, thereby rendering it a closed-loop system. Depending on the hardware's capabilities and limitations, there are various degrees of freedom that a CR may utilize. Here we concentrate on spatial illumination as a resource, where adaptive beamsteering is used for search-and-track functions. We propose a multiplatform cognitive radar network (CRN) for integrated search-and-track application. Specifically, two radars cooperate in forming a dynamic spatial illumination strategy, where beamsteering is matched to the channel uncertainty to perform the search function. Once a target is detected and a track is initiated, track information is integrated into the beamsteering strategy as part of CR's task prioritization.
C1 [Romero, Ric A.] USN, Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA.
[Goodman, Nathan A.] Univ Oklahoma, Sch Elect & Comp Engn, Norman, OK 73019 USA.
RP Romero, RA (reprint author), USN, Postgrad Sch, Dept Elect & Comp Engn, 833 Dyer Rd,Sp Hall Rm 544A, Monterey, CA 93943 USA.
EM rnromero@nps.edu
NR 23
TC 12
Z9 12
U1 1
U2 13
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9251
EI 1557-9603
J9 IEEE T AERO ELEC SYS
JI IEEE Trans. Aerosp. Electron. Syst.
PD APR
PY 2013
VL 49
IS 2
BP 915
EP 931
PG 17
WC Engineering, Aerospace; Engineering, Electrical & Electronic;
Telecommunications
SC Engineering; Telecommunications
GA 127AY
UT WOS:000317667700016
ER
PT J
AU Tait, GB
Hager, C
Slocum, MB
Hatfield, MO
AF Tait, Gregory B.
Hager, Carl
Slocum, Michael B.
Hatfield, Michael O.
TI On Measuring Shielding Effectiveness of Sparsely Moded Enclosures in a
Reverberation Chamber
SO IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY
LA English
DT Article
DE Reverberation chamber (RC); shielding effectiveness (SE); small
enclosure
ID CAVITIES
AB Recently, there has been great interest in evaluating the shielding effectiveness of physically small enclosures (all linear dimensions between 0.1 and 2 m) using a reverberation chamber. In cases where the enclosure is also electrically small (linear dimensions on the order of a free-space wavelength or less), the enclosure supports only discrete resonant modes whose lineshapes have little or no overlap in frequency. This sparsely moded or "undermoded" cavity poses a number of complex challenges to defining and measuring shielding effectiveness. This study contributes to the development of a measurement process for evaluating shielding effectiveness in electrically small enclosures. Specifically, we demonstrate the performance advantages of a traveling-wave antenna (long-wire probe) as a means of fully sampling the field throughout the volume of the enclosure without the need for multiple, wall-mounted probes. Furthermore, the good impedance match of the long-wire antenna permits a large dynamic range in the shielding effectiveness measurements. A simple and fast test method is presented that is accurate and repeatable, and embodies the desired "dovetailing" of shielding effectiveness values obtained as frequency increases and the enclosure transitions from undermoded to overmoded operation. Finally, a rudimentary statistical analysis is provided to assess typical uncertainties inherent in the shielding effectiveness evaluation.
C1 [Tait, Gregory B.; Hager, Carl; Slocum, Michael B.; Hatfield, Michael O.] USN, Ctr Surface Warfare, Dept Electromagnet & Sensor Syst, Dahlgren Div, Dahlgren, VA 22448 USA.
RP Tait, GB (reprint author), USN, Ctr Surface Warfare, Dept Electromagnet & Sensor Syst, Dahlgren Div, Dahlgren, VA 22448 USA.
EM gregory.tait@navy.mil; carl.hager@navy.mil; michael.slocum@navy.mil;
michael.hatfield@navy.mil
NR 20
TC 8
Z9 8
U1 1
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9375
J9 IEEE T ELECTROMAGN C
JI IEEE Trans. Electromagn. Compat.
PD APR
PY 2013
VL 55
IS 2
BP 231
EP 240
DI 10.1109/TEMC.2012.2220779
PG 10
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 129SR
UT WOS:000317863100002
ER
PT J
AU Hessert, D
Tanzer, D
Brunstetter, T
Kaupp, S
Murdoch, D
Mirzaoff, M
AF Hessert, David
Tanzer, David
Brunstetter, Tyson
Kaupp, Sandor
Murdoch, Donna
Mirzaoff, Myah
TI Topical cyclosporine A for postoperative photorefractive keratectomy and
laser in situ keratomileusis
SO JOURNAL OF CATARACT AND REFRACTIVE SURGERY
LA English
DT Article
ID DYSFUNCTIONAL TEAR SYNDROME; DRY EYE PATIENTS; CORNEAL SENSITIVITY;
MYOPIC LASIK; NEUROTROPHIC EPITHELIOPATHY; RECOVERY; INTERLEUKIN-6;
MANAGEMENT; DENSITY; DISEASE
AB PURPOSE: To compare the stability and predictability of the refractive outcomes in eyes treated with photorefractive keratectomy (PRK) or laser in situ keratomileusis (LASIK) with and without postoperative use of topical cyclosporine A emulsion.
SETTING: Naval Medical Center San Diego Refractive Surgery Center, San Diego, California, USA.
DESIGN: Randomized clinical trial.
METHODS: Patients had PRK or LASIK and were randomized, pairwise, to a standard postoperative treatment regimen with or without the addition of topical cyclosporine A 0.05% emulsion twice daily for 3 months postoperatively. Visual acuity, mesopic contrast acuity, refractions, and ocular symptoms were assessed through the 3-month examination. Tear-film samples (cytokines and chemokines) were analyzed preoperatively and 1 week and 1 and 3 months postoperatively.
RESULTS: The PRK group comprised 70 patients and the LASIK group, 54 patients. The addition of topical cyclosporine A twice a day after PRK or LASIK did not confer special benefits in terms of achievement of target refraction, final uncorrected distance visual acuity (UDVA), or rate of visual recovery (all P>.05, multivariate analysis of variance [MANOVA]). There was no significant difference in tear-film composition based on measurement of matrix metalloproteinase-9, interleukin (IL)-6, or IL-8 recovery (all P>.05, MANOVA).
CONCLUSION: The addition of topical cyclosporine A twice daily for 3 months after PRK or LASIK did not provide a significant benefit in the rate of visual recovery, final UDVA, or patient symptoms, nor did it significantly change measured inflammatory mediators (cytokines) present in the tear film.
C1 [Hessert, David] USN, Hosp Bremerton, Bremerton, WA 98337 USA.
[Tanzer, David; Brunstetter, Tyson; Kaupp, Sandor; Murdoch, Donna; Mirzaoff, Myah] USN, San Diego Med Ctr, Dept Ophthalmol, Navy Refract Surg Ctr, San Diego, CA 92152 USA.
RP Hessert, D (reprint author), USN, Hosp Bremerton, 1 Boone Rd, Bremerton, WA 98337 USA.
EM david.hessert@med.navy.mil
NR 23
TC 4
Z9 4
U1 0
U2 3
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0886-3350
J9 J CATARACT REFR SURG
JI J. Cataract. Refract. Surg.
PD APR
PY 2013
VL 39
IS 4
BP 539
EP 547
DI 10.1016/j.jcrs.2012.11.024
PG 9
WC Ophthalmology; Surgery
SC Ophthalmology; Surgery
GA 129VK
UT WOS:000317871900008
PM 23415779
ER
PT J
AU Prak, DJL
Trulove, PC
Cowart, JS
AF Prak, Dianne J. Luning
Trulove, Paul C.
Cowart, Jim S.
TI Density, Viscosity, Speed of Sound, Surface Tension, and Flash Point of
Binary Mixtures of n-Hexadecane and 2,2,4,4,6,8,8-Heptamethylnonane and
of Algal-Based Hydrotreated Renewable Diesel
SO JOURNAL OF CHEMICAL AND ENGINEERING DATA
LA English
DT Article
ID THERMOPHYSICAL PROPERTIES; REFRACTIVE-INDEXES; ORGANIC LIQUIDS;
298.15-K; SYSTEMS; TEMPERATURE; PREDICTION; PRESSURES; ALKANES; FUEL
AB The physical properties of algal hydrotreated renewal diesel (algal HRD) and several binary mixtures of n-hexadecane and 2,2,4,4,6,8,8-heptamethylnonane were measured in this work. The density and viscosity were measured at temperatures ranging from (293.15 to 393.15) K and the pure components values fell within the range of previously reported values. Speed of sound data were measured at temperatures ranging from (293.15 to 323.15) K and ranged from (1170 to 1360) m.s(-1). The bulk modulus was calculated from the density and speed of sound data, and its values ranged from (1050 to 1425) MPa. For the pure n-hexadecane and 2,2,4,4,6,8,8-heptamethylnonane and their mixtures, the flash point values ranged from (367 to 408) K and the surface tension values ranged from (24.1 to 27.3) mN.m(-1). The values of viscosity and flash point (360 K) for the algal HRD did not fall within the range of values for the mixtures of n-hexadecane and 2,2,4,4,6,8,8-heptamethylnonane, but the values of density, speed of sound, bulk modulus, and surface tension (26.0 mN.m(-1)) did fall within the range of values measured for the mixtures of n-hexadecane and 2,2,4,4,6,8,8-heptamethylnonane. These data are important for future modeling of these renewable fuels.
C1 [Prak, Dianne J. Luning; Trulove, Paul C.] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
[Cowart, Jim S.] USN Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
RP Prak, DJL (reprint author), USN Acad, Dept Chem, 572M Holloway Rd, Annapolis, MD 21402 USA.
EM prak@usna.edu
OI Luning Prak, Dianne/0000-0002-5589-7287
FU Office of Naval Research
FX This work was funded by the Office of Naval Research.
NR 33
TC 21
Z9 21
U1 2
U2 33
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0021-9568
J9 J CHEM ENG DATA
JI J. Chem. Eng. Data
PD APR
PY 2013
VL 58
IS 4
BP 920
EP 926
DI 10.1021/je301337d
PG 7
WC Thermodynamics; Chemistry, Multidisciplinary; Engineering, Chemical
SC Thermodynamics; Chemistry; Engineering
GA 125PO
UT WOS:000317553600012
ER
PT J
AU Rudinsky, SL
Lucio, S
AF Rudinsky, Sherri L.
Lucio, Simon
TI IMAGES IN EMERGENCY MEDICINE DIAGNOSIS
SO ANNALS OF EMERGENCY MEDICINE
LA English
DT Editorial Material
ID VALLECULAR CYST
C1 [Rudinsky, Sherri L.] USN, San Diego Med Ctr, Dept Emergency Med, San Diego, CA 92152 USA.
[Lucio, Simon] Rady Childrens Hosp San Diego, Div Emergency Med, San Diego, CA USA.
RP Rudinsky, SL (reprint author), USN, San Diego Med Ctr, Dept Emergency Med, San Diego, CA 92152 USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU MOSBY-ELSEVIER
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0196-0644
J9 ANN EMERG MED
JI Ann. Emerg. Med.
PD APR
PY 2013
VL 61
IS 4
BP 388
EP +
DI 10.1016/j.annemergmed.2012.08.001
PG 2
WC Emergency Medicine
SC Emergency Medicine
GA 123GP
UT WOS:000317376700003
PM 23522808
ER
PT J
AU Nepal, N
Mahadik, NA
Nyakiti, LO
Qadri, SB
Mehl, MJ
Hite, JK
Eddy, CR
AF Nepal, Neeraj
Mahadik, Nadeemullah A.
Nyakiti, Luke O.
Qadri, Syed B.
Mehl, Michael J.
Hite, Jennifer K.
Eddy, Charles R., Jr.
TI Epitaxial Growth of Cubic and Hexagonal InN Thin Films via
Plasma-Assisted Atomic Layer Epitaxy
SO CRYSTAL GROWTH & DESIGN
LA English
DT Article
ID INITIO MOLECULAR-DYNAMICS; BEAM EPITAXY; DEPOSITION; ALN; GAN;
TRANSITION; ALLOYS
AB InN thin films possessing either a novel cubic or a hexagonal phase were grown by plasma-assisted atomic layer epitaxy on an a-plane sapphire, Si(111), and GaN/sapphire templates, simultaneously. Two ALE growth temperature windows were found between 175-185 degrees C and 220-260 degrees C, in which the growth process is self-limiting. In the lower temperature ALE window, InN on an a-plane sapphire crystallized in a face-centered cubic lattice with a NaCl type structure, which has never been previously reported. InN grown on other substrates formed the more common hexagonal phase. In the higher temperature ALE window, the InN films grown on all substrates were of hexagonal phase. The NaCl phase and the epitaxial nature of the InN thin films on the a-plane sapphire grown at 183 degrees C are confirmed independently by X-ray diffraction, transmission electron microscopy, and numerical simulations. These results are very promising and demonstrate the tremendous potential for the PA-ALE in the growth of crystalline III-N materials with novel phases unachievable by other deposition techniques.
C1 [Nepal, Neeraj; Mahadik, Nadeemullah A.; Nyakiti, Luke O.; Hite, Jennifer K.; Eddy, Charles R., Jr.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[Qadri, Syed B.; Mehl, Michael J.] USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
RP Nepal, N (reprint author), USN, Res Lab, Div Elect Sci & Technol, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM neeraj.nepal.ctr.np@nrl.navy.mil
RI Hite, Jennifer/L-5637-2015; Mehl, Michael/H-8814-2016
OI Hite, Jennifer/0000-0002-4090-0826;
FU American Society for Engineering Education Naval Research Laboratory;
Office of Naval Research
FX N. Nepal and L.O. Nyakiti would like to acknowledge the support of The
American Society for Engineering Education Naval Research Laboratory
postdoctoral fellowship programs. This work is supported by the Office
of Naval Research. Authors would like to thank M. Currie for the
reflection spectroscopy experiment. VASP calculations were performed at
the United States Air Force Research Laboratory Department of Defense
Supercomputing Center, Wright Patterson Air Force Base, Dayton, Ohio,
and the United States Army Engineer Research and Development Center,
Vicksburg, Mississippi, under a grant from the United States Department
of Defense High Performance Computing Modernization Program. Authors
would like to acknowledge Oak Ridge National Laboratory for letting us
use the transmission electron microscope.
NR 27
TC 15
Z9 15
U1 1
U2 54
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1528-7483
J9 CRYST GROWTH DES
JI Cryst. Growth Des.
PD APR
PY 2013
VL 13
IS 4
BP 1485
EP 1490
DI 10.1021/cg3016172
PG 6
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA 121QS
UT WOS:000317259900015
ER
PT J
AU Calder, AC
Krueger, BK
Jackson, AP
Townsley, DM
AF Calder, Alan C.
Krueger, Brendan K.
Jackson, Aaron P.
Townsley, Dean M.
TI The influence of chemical composition on models of Type Ia supernovae
SO FRONTIERS OF PHYSICS
LA English
DT Review
DE hydrodynamics; nuclear reactions; nucleosynthesis; abundances; stars:
supernovae: general; stars: white dwarfs
ID GRAVITATIONALLY CONFINED DETONATION; WHITE-DWARF MODELS; EVALUATING
SYSTEMATIC DEPENDENCIES; CHANDRASEKHAR MASS MODELS; PARTICLE
HYDRODYNAMICS SIMULATIONS; 3-DIMENSIONAL DEFLAGRATION MODEL; CONVECTIVE
URCA PROCESS; LONG-TERM EVOLUTION; EARLY-TYPE GALAXIES; THERMONUCLEAR
SUPERNOVAE
AB Type Ia supernovae are bright stellar explosions distinguished by standardizable light curves that allow for their use as distance indicators for cosmological studies. Despite the highly successful use of these events in this capacity, many fundamental questions remain. Contemporary research investigates how properties of the progenitor system that follow from the host galaxy such as composition and age influence the brightness of an event with the goal of better understanding and assessing the intrinsic scatter in the brightness. We provide an overview of these supernovae and proposed progenitor systems, all of which involve one or more compact stars known as white dwarfs. We describe contemporary research investigating how the composition and structure of the progenitor white dwarf systematically influences the explosion outcome assuming the progenitor is a single white dwarf that has gained mass from a companion. We present results illustrating some of these systematic effects from our research.
C1 [Calder, Alan C.; Krueger, Brendan K.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
[Calder, Alan C.] SUNY Stony Brook, New York Ctr Computat Sci, Stony Brook, NY 11794 USA.
[Jackson, Aaron P.] USN, Res Lab, Natl Res Council, Res Associateship Program, Washington, DC 20375 USA.
[Jackson, Aaron P.] USN, Res Lab, Labs Computat Phys & Fluid Dynam, Washington, DC 20375 USA.
[Townsley, Dean M.] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA.
RP Calder, AC (reprint author), SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
EM alan.calder@stonybrook.edu
FU Department of Energy [DE-FG02-07ER41516, DE-FG02-08ER41570,
DE-FG02-08ER41565, DE-FG02-87ER40317]; NASA [NNX09AD19G]; Bart J. Bok
fellowship at the University of Arizona; National Research Council
Research Associateship Award at the Naval Research Laboratory; NSF
[PHY05-51164]; U.S. Department of Energy [DE-AC02-98CH10886]; State of
New York
FX This work was supported by the Department of Energy through grants
DE-FG02-07ER41516, DE-FG02-08ER41570, and DE-FG02-08ER41565, and NASA
through grant NNX09AD19G. ACC also acknowledges support from the
Department of Energy under grant DE-FG02-87ER40317. DMT received support
from the Bart J. Bok fellowship at the University of Arizona. This
research was performed while APJ held a National Research Council
Research Associateship Award at the Naval Research Laboratory. The
authors also acknowledge the hospitality of the KITP, which is supported
by NSF grant PHY05-51164, during the programs "Accretion and Explosion:
The Astrophysics of Degenerate Stars" and "Stellar Death and
Supernovae". The software used in this work was in part developed by the
DOE-supported ASC/Alliances Center for Astrophysical Thermonuclear
Flashes at the University of Chicago. This research utilized resources
at the New York Center for Computational Sciences at Stony Brook
University/Brookhaven National Laboratory which is supported by the U.S.
Department of Energy under Contract No. DE-AC02-98CH10886 and by the
State of New York. The authors gratefully thank Ivo Seitenzahl, Max
Katz, and Michal Simon for helpful comments on drafts of this
manuscript. The authors also thank the anonymous referee for insightful
comments and suggestions that significantly improved the manuscript.
NR 248
TC 7
Z9 7
U1 1
U2 5
PU HIGHER EDUCATION PRESS
PI BEIJING
PA SHATANHOU ST 55, BEIJING 100009, PEOPLES R CHINA
SN 2095-0462
J9 FRONT PHYS-BEIJING
JI Front. Phys.
PD APR
PY 2013
VL 8
IS 2
BP 168
EP 188
DI 10.1007/s11467-013-0301-4
PG 21
WC Physics, Multidisciplinary
SC Physics
GA 123YF
UT WOS:000317427900004
ER
PT J
AU Kasprzak, SE
Wester, BA
Raj, T
Allen, M
Gall, K
AF Kasprzak, Scott E.
Wester, Brock A.
Raj, Tulika
Allen, Mark
Gall, Ken
TI Photopatterning of Thiol-ene-Acrylate Copolymers
SO JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
LA English
DT Article
DE Materials processing; materials science and technology; materials
testing; photolithography
ID HIGH-ASPECT-RATIO; PHOTOLITHOGRAPHIC POLYMERIZATION CLIPP; MICROFLUIDIC
DEVICE FABRICATION; LASER-INITIATED POLYMERIZATION; 3-DIMENSIONAL
MICROFABRICATION; RADICAL PHOTOPOLYMERIZATION; REACTION BEHAVIOR; VINYL
MECHANISMS; SYSTEMS; KINETICS
AB Thiol-ene-acrylate copolymers exhibit a unique blend of characteristics which make them suitable for both photolithographic patterning and material property tuning. Five thiol-ene-acrylate monomer blends are found to exhibit similar reaction rates via photo-differential scanning calorimetry, while dynamic mechanical analysis shows the trend in the thermomechanical properties of three of the systems. Two selected thiol-ene-acrylate systems showed rapid polymerization with low apparent shrinkage and relatively low heat evolution (when compared to acrylates) with excellent patternability, while a binary acrylate system shows extreme apparent shrinkage, greater heat evolution, and does not replicate the mask pattern in a controllable fashion. The apparent shrinkage is a measure of patternability, since this quantity represents the actual polymer dimensions when compared to the desired dimension (i.e., photomask pattern).
C1 [Kasprzak, Scott E.; Gall, Ken] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA.
[Wester, Brock A.; Raj, Tulika] Georgia Inst Technol, Wallace H Coulter Dept Biomed Engn, Atlanta, GA 30332 USA.
[Wester, Brock A.; Allen, Mark] Georgia Inst Technol, Microelect Res Ctr, Atlanta, GA 30332 USA.
[Gall, Ken] Georgia Inst Technol, Mat Sci & Engn Dept, Atlanta, GA 30332 USA.
RP Kasprzak, SE (reprint author), USN, Bethesda, MD 20817 USA.
EM scott.kasprzak@navy.mil; brock.wester@jhuapl.edu;
tulika.tarar@gmail.com; mallen@gatech.edu; ken.gall@mse.gatech.edu
RI Wester, Brock/H-2217-2013
OI Wester, Brock/0000-0002-1500-2143
FU NIH(NINDS) [5R21NS054161-02]
FX This work was supported in part by NIH(NINDS) funding for Project
5R21NS054161-02. Subject Editor J. A. Yeh.
NR 67
TC 2
Z9 2
U1 3
U2 31
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1057-7157
J9 J MICROELECTROMECH S
JI J. Microelectromech. Syst.
PD APR
PY 2013
VL 22
IS 2
BP 339
EP 348
DI 10.1109/JMEMS.2012.2226927
PG 10
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Instruments & Instrumentation; Physics, Applied
SC Engineering; Science & Technology - Other Topics; Instruments &
Instrumentation; Physics
GA 120SF
UT WOS:000317191700013
ER
PT J
AU Porch, D
AF Porch, Douglas
TI Galula: The Life and Writings of the French Officer who Defined the Art
of Counterinsurgency
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Porch, Douglas] USN, Postgrad Sch, Monterey, CA 93943 USA.
RP Porch, D (reprint author), USN, Postgrad Sch, Monterey, CA 93943 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU SOC MILITARY HISTORY
PI LEXINGTON
PA C/O VIRGINIA MILITARY INST, GEORGE C MARSHALL LIBRARY, LEXINGTON, VA
24450-1600 USA
SN 0899-3718
J9 J MILITARY HIST
JI J. Mil. Hist.
PD APR
PY 2013
VL 77
IS 2
BP 761
EP 762
PG 2
WC History
SC History
GA 120GN
UT WOS:000317158900071
ER
PT J
AU Lipov, EG
Navaie, M
Rothfeld, C
Kelzenberg, B
Sharghi, LH
Solomon, DJ
Provencher, MT
AF Lipov, Eugene G.
Navaie, Maryam
Rothfeld, Courtney
Kelzenberg, Briana
Sharghi, Leighla H.
Solomon, Daniel J.
Provencher, Matthew T.
TI Use of Intra-Articular and Intrabursal Pulsed Radiofrequency for the
Treatment of Persistent Arthrogenic Shoulder Pain
SO PAIN MEDICINE
LA English
DT Letter
ID SUPRASCAPULAR NERVE
C1 [Lipov, Eugene G.; Rothfeld, Courtney; Kelzenberg, Briana] Adv Pain Ctr SC, Hoffman Estates, IL USA.
[Navaie, Maryam; Sharghi, Leighla H.] Adv Hlth Solut LLC, San Diego, CA USA.
[Solomon, Daniel J.] Marin Orthoped & Sports Med, Novato, CA USA.
[Provencher, Matthew T.] USN, Dept Orthopaed Surg, San Diego Med Ctr, San Diego, CA 92152 USA.
RP Lipov, EG (reprint author), Adv Pain Ctr SC, Hoffman Estates, IL USA.
NR 15
TC 0
Z9 1
U1 0
U2 0
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1526-2375
J9 PAIN MED
JI Pain Med.
PD APR
PY 2013
VL 14
IS 4
BP 554
EP 556
DI 10.1111/pme.12073
PG 3
WC Medicine, General & Internal
SC General & Internal Medicine
GA 126MK
UT WOS:000317621000016
PM 23489372
ER
PT J
AU Grondin, Y
Cotanche, DA
Manneberg, O
Molina, R
Trevino-Villarreal, JH
Sepulveda, R
Clifford, R
Bortoni, ME
Forsberg, S
LaBrecque, B
Altshul, L
Brain, JD
Jackson, RL
Rogers, RA
AF Grondin, Yohann
Cotanche, Douglas A.
Manneberg, Otto
Molina, Ramon
Trevino-Villarreal, J. Humberto
Sepulveda, Rosalinda
Clifford, Royce
Bortoni, Magda E.
Forsberg, Scott
LaBrecque, Brian
Altshul, Larisa
Brain, Joseph D.
Jackson, Ronald L.
Rogers, Rick A.
TI Pulmonary delivery of D-methionine is associated with an increase in
ALCAR and glutathione in cochlear fluids
SO HEARING RESEARCH
LA English
DT Article
ID INDUCED HEARING-LOSS; ACETYL-L-CARNITINE; INDUCED OTOTOXICITY;
N-ACETYLCYSTEINE; ACOUSTIC TRAUMA; DRUG-DELIVERY; FREE-RADICALS;
L-CYSTEINE; INNER-EAR; IN-VIVO
AB In animals, hearing loss resulting from cochlear mechanosensory cell damage can be mitigated by antioxidants such as D-methionine (D-met) and acetyl-L-carnitine (ALCAR). The systemic routes of administration of these compounds, that must of necessity transit trough the cochlear fluids, may affect the antioxidant levels in the cochlea and the resulting oto-protective effect. In this study, we analyzed the pharmacokinetics of [C-14]D-met in the cochlea and four other tissues after intratracheal (IT), intranasal (IN), and oral by gavage (OG) administration and compared it to intravenous administration (IV). We then analyzed the effect of these four routes on the antioxidant content of the cochlear fluids after D-met or ALCAR administration, by liquid chromatography/mass spectrometry. Our results showed that the concentration of methionine and ALCAR in cochlear fluids significantly increased after their respective systemic administration. Interestingly, D-met administration also contributed to an increase of ALCAR. Our results also showed that the delivery routes differently affected the bioavailability of administered [C-14]D-met as well as the concentrations of methionine, ALCAR and the ratio of oxidized to reduced glutathione. Overall, pulmonary delivery via IT administration achieved high concentrations of methionine, ALCAR, and oxidative-related metabolites in cochlear fluids, in some cases surpassing IV administration, while IN route appeared to be the least efficacious. To our knowledge, this is the first report of the direct measurements of antioxidant levels in cochlear fluids after their systemic administration. This report also demonstrates the validity of the pulmonary administration of antioxidants and highlights the different contributions of D-met and ALCAR allowing to further investigate their impact on oxidative stress in the cochlear microenvironment. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Grondin, Yohann; Cotanche, Douglas A.; Molina, Ramon; Trevino-Villarreal, J. Humberto; Sepulveda, Rosalinda; Clifford, Royce; Bortoni, Magda E.; Forsberg, Scott; LaBrecque, Brian; Altshul, Larisa; Brain, Joseph D.; Rogers, Rick A.] Harvard Univ, Sch Publ Hlth, Dept Environm Hlth, Mol & Integrat Physiol Sci Program, Boston, MA 02115 USA.
[Manneberg, Otto] Sci Life Lab, S-17121 Solna, Sweden.
[Clifford, Royce; Jackson, Ronald L.] USN, Med Ctr, Dept Otolaryngol Head & Neck Surg, San Diego, CA 92134 USA.
RP Rogers, RA (reprint author), Harvard Univ, Sch Publ Hlth, Dept Environm Hlth, Mol & Integrat Physiol Sci Program, 665 Huntington Ave, Boston, MA 02115 USA.
EM rogers@hsph.harvard.edu
RI Manneberg, Otto/O-7012-2014;
OI Manneberg, Otto/0000-0002-4720-2756; Cotanche,
Douglas/0000-0001-7972-0446
FU Office of Naval Research [N000140911104]; Hellmuth Hertz Foundation
FX The authors would like to gratefully acknowledge funding from the Office
of Naval Research, award# N000140911104 awarded to Dr. Rogers. O.M.
acknowledges funding from the Hellmuth Hertz Foundation. The authors
would also like to gratefully thank Tom Donaghey for his assistance with
the rat assays. We also would like to thank Martin Slade for a critical
review of the statistical methodology.
NR 67
TC 6
Z9 7
U1 1
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-5955
J9 HEARING RES
JI Hear. Res.
PD APR
PY 2013
VL 298
BP 93
EP 103
DI 10.1016/j.heares.2012.12.011
PG 11
WC Audiology & Speech-Language Pathology; Neurosciences;
Otorhinolaryngology
SC Audiology & Speech-Language Pathology; Neurosciences & Neurology;
Otorhinolaryngology
GA 120GP
UT WOS:000317159100010
PM 23296212
ER
PT J
AU Frumkin, K
AF Frumkin, Kenneth
TI PERTUSSIS AND PERSISTENT COUGH: PRACTICAL, CLINICAL AND EPIDEMIOLOGIC
ISSUES
SO JOURNAL OF EMERGENCY MEDICINE
LA English
DT Review
DE pertussis; prevention; epidemiology; diagnosis; treatment
ID ADULTS; DIPHTHERIA; TETANUS; VACCINE; CARE; ADOLESCENT
AB Background: Epidemiologic issues of testing, treatment, prevention, immunization, mandated reporting, and post-exposure prophylaxis do not often intrude on the Emergency Department management of the well-appearing adolescent or adult with a couple of weeks of cough. Objectives: Considering that waning immunity to pertussis, the only vaccine-preventable disease with increasing cases and deaths in the United States, is responsible for 12-35% of such illness, such issues need to be considered. Discussion: Mostly self-limited in adults, transmission of pertussis to infants places them at risk for hospitalization and death. Pertussis is highly contagious (80% transmission), and atypical presentations are the rule in adults (cough alone) and infants (apnea, bradycardia, poor feeding). Treatment in the first few weeks can impact the clinical course, and later treatment can still prevent transmission. Clinical features like paroxysmal cough, inspiratory "whoop," and post-tussive emesis have mildly increased predictive values and may be absent in adults. Testing is unreliable after 3 weeks of cough. Treatment reduces communicability within 5 days and is suggested without regard to test results within 3 weeks of cough onset for those aged > 1 year (within 6 weeks of cough for < 1 year). Reporting requirements are based on the clinical case definition: ([Cough >= 2 weeks] + [paroxysms OR whoop OR post-tussive emesis]). Lower reporting thresholds are appropriate during an outbreak or when vulnerable populations are at risk. Post-exposure prophylaxis is recommended for at-risk contacts. Tdap is encouraged for all adults. Conclusion: Practical recommendations consistent with the most current guidelines are offered. Published by Elsevier Inc.
C1 USN, Dept Emergency Med, Med Ctr Portsmouth, Portsmouth, VA 23708 USA.
RP Frumkin, K (reprint author), USN, Dept Emergency Med, Med Ctr Portsmouth, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
NR 25
TC 5
Z9 5
U1 0
U2 5
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0736-4679
J9 J EMERG MED
JI J. Emerg. Med.
PD APR
PY 2013
VL 44
IS 4
BP 889
EP 895
DI 10.1016/j.jemermed.2012.09.037
PG 7
WC Emergency Medicine
SC Emergency Medicine
GA 121YQ
UT WOS:000317282000038
PM 23287746
ER
PT J
AU Austin, AL
Day, LT
Bishop, FM
AF Austin, Andrea L.
Day, Luke T.
Bishop, Frank M.
TI ACUTE VISION LOSS: A FUZZY PRESENTATION OF SARCOIDOSIS
SO JOURNAL OF EMERGENCY MEDICINE
LA English
DT Article
DE acute vision loss; sarcoidosis
AB Background: Acute vision loss is a devastating problem for patients and a challenging diagnostic dilemma for Emergency Physicians. This chief complaint is one in which we must be adept at quickly evaluating and initiating either care or referral. Objectives: This case reviews the approach to acute vision loss and shows the importance of expanding the differential in atypical and complex presentations. Case Report: A 31-year-old, previously healthy, white woman presented to the Emergency Department (ED) with 1 day of painless right eye vision loss. Ocular ultrasound and slit-lamp examination were unremarkable. Fundoscopic examination revealed retinal hemorrhages and papillitis. Her chest X-ray study was significant for bilateral hilar adenopathy, and subsequent lymph node biopsy confirmed the diagnosis of sarcoidosis. Conclusions: Although sarcoidosis is more common in African Americans, it must be considered in all patients in the appropriate clinical context. Sarcoidosis is an important diagnosis to include on the differential of many chief complaints that present to the ED, including acute vision loss and dyspnea. Published by Elsevier Inc.
C1 [Austin, Andrea L.; Day, Luke T.] USN, San Diego Med Ctr, Dept Emergency Med, San Diego, CA 92134 USA.
[Bishop, Frank M.] USN, San Diego Med Ctr, Dept Ophthalmol, San Diego, CA 92134 USA.
RP Austin, AL (reprint author), USN, San Diego Med Ctr, Dept Emergency Med, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
NR 7
TC 0
Z9 0
U1 0
U2 3
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0736-4679
J9 J EMERG MED
JI J. Emerg. Med.
PD APR
PY 2013
VL 44
IS 4
BP E325
EP E328
DI 10.1016/j.jemermed.2012.11.007
PG 4
WC Emergency Medicine
SC Emergency Medicine
GA 121YQ
UT WOS:000317282000003
PM 23333183
ER
PT J
AU Bopp, EJ
Spence, DL
Burkard, JF
AF Bopp, Eric J.
Spence, Dennis L.
Burkard, Joseph F.
TI A Preoperative Stress Inquiry and a Vulnerable US Military Population
SO JOURNAL OF PERIANESTHESIA NURSING
LA English
DT Article
DE stress response; preoperative stress; military; anesthesia
ID DAY SURGERY; MIDAZOLAM PREMEDICATION; INTRAVENOUS MIDAZOLAM;
RISK-FACTORS; DOUBLE-BLIND; DEPRESSION SCALE; HOSPITAL ANXIETY; BREAST
BIOPSY; ANESTHESIA; INFORMATION
AB The preoperative setting is fraught with many stressors, often increasing in magnitude as patients progress through the perioperative environment. Individuals exposed to traumatic or threatening environments, such as US military personnel involved in combat operations, may be at increased risk of developing altered mental and physical health conditions. Collectively, this may result in a hyperarousal state significantly amplifying psychological symptoms and magnifying physiological alterations. The purposes of this article are to (1) describe stress-related concepts and preoperative stress, (2) discuss potential risk factors for preoperative stress in the adult surgical population, (3) present various psychological and physiological measures of preoperative stress, (4) explore preoperative stress interventions, and (5) discuss potential implications for future preoperative stress research in high-stressed populations.
C1 [Bopp, Eric J.; Burkard, Joseph F.] Univ San Diego, Hahn Sch Nursing & Hlth Sci, San Diego, CA 92110 USA.
[Spence, Dennis L.] USN, San Diego Med Ctr, San Diego, CA 92152 USA.
RP Bopp, EJ (reprint author), Univ San Diego, Hahn Sch Nursing & Hlth Sci, 5998 Alcala Pk, San Diego, CA 92110 USA.
EM ericjbopp@me.com
OI Spence, Dennis/0000-0003-2852-7050
NR 74
TC 0
Z9 0
U1 0
U2 7
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1089-9472
J9 J PERIANESTH NURS
JI J. PeriAnesthesia Nurs.
PD APR
PY 2013
VL 28
IS 2
BP 67
EP 76
DI 10.1016/j.jopan.2012.11.007
PG 10
WC Nursing
SC Nursing
GA 123HB
UT WOS:000317377900003
PM 23522266
ER
PT J
AU Slocum, AH
Fennell, GE
Dundar, G
Hodder, BG
Meredith, JDC
Sager, MA
AF Slocum, Alexander H.
Fennell, Gregory E.
Duendar, Goekhan
Hodder, Brian G.
Meredith, James D. C.
Sager, Monique A.
TI Ocean Renewable Energy Storage (ORES) System: Analysis of an Undersea
Energy Storage Concept
SO PROCEEDINGS OF THE IEEE
LA English
DT Article
DE Energy harvesting; energy storage; grid storage; renewable energy;
sustainable energy; undersea energy; wind integration
ID MARINE-ENVIRONMENT; CONCRETE; PFA
AB Due to its higher capacity factor and proximity to densely populated areas, offshore wind power with integrated energy storage could satisfy >20% of U. S. electricity demand. Similar results could also be obtained in many parts of the world. The offshore environment can be used for unobtrusive, safe, and economical utility-scale energy storage by taking advantage of the hydrostatic pressure at ocean depths to store energy by pumping water out of concrete spheres and later allowing it to flow back in through a turbine to generate electricity. The storage spheres are an ideal complement to energy harvesting machines, such as floating wind turbines (FWTs). The system could provide near-base-load-quality utility-scale renewable energy and do double duty as the anchoring point for the generation platforms. Analysis indicates that storage can be economically feasible at depths as shallow as 200 m, with cost per megawatt hour of storage dropping until 1500 m before beginning to trend upward. The sweet spot occurs when the concrete wall thickness to withstand the hydrostatic pressure provides enough ballast mass, and this will depend on the strength of used concrete and reinforcement. In addition, the required concrete would use significant amounts of fly ash from coal-fired power plants, and the spheres can serve as artificial reefs.
C1 [Slocum, Alexander H.; Duendar, Goekhan; Hodder, Brian G.; Meredith, James D. C.] MIT, Dept Mech Engn, Cambridge, MA 02139 USA.
[Fennell, Gregory E.] USN, Naval Base Point Loma, San Diego, CA 92106 USA.
[Sager, Monique A.] Univ Penn, Philadelphia, PA 19104 USA.
RP Slocum, AH (reprint author), MIT, Dept Mech Engn, Cambridge, MA 02139 USA.
FU MIT Energy Initiative
FX Manuscript received July 28, 2011; revised February 13, 2012 and October
5, 2012; accepted December 2, 2012. Date of publication February 26,
2013; date of current version March 15, 2013. This work was supported by
the MIT Energy Initiative (http://web.mit.edu/mitei).
NR 48
TC 10
Z9 10
U1 1
U2 34
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9219
J9 P IEEE
JI Proc. IEEE
PD APR
PY 2013
VL 101
IS 4
BP 906
EP 924
DI 10.1109/JPROC.2013.2242411
PG 19
WC Engineering, Electrical & Electronic
SC Engineering
GA 110WY
UT WOS:000316479300006
ER
PT J
AU Sisul, DM
Liss, MA
Palazzi, KL
Briles, K
Mehrazin, R
Gold, RE
Masterson, JH
Mirheydar, HS
Jabaji, R
Stroup, SP
L'Esperance, JO
Wake, RW
Rivera-Sanfeliz, G
Derweesh, IH
AF Sisul, David M.
Liss, Michael A.
Palazzi, Kerrin L.
Briles, Kaitlan
Mehrazin, Reza
Gold, Robert E.
Masterson, James H.
Mirheydar, Hossein S.
Jabaji, Ramzi
Stroup, Sean P.
L'Esperance, James O.
Wake, Robert W.
Rivera-Sanfeliz, Gerant
Derweesh, Ithaar H.
TI RENAL Nephrometry Score Is Associated With Complications After Renal
Cryoablation: A Multicenter Analysis
SO UROLOGY
LA English
DT Article
ID LAPAROSCOPIC CRYOABLATION; PERCUTANEOUS CRYOABLATION; PARTIAL
NEPHRECTOMY; COLLECTING SYSTEM; MASSES; RADIOFREQUENCY; INVOLVEMENT;
CRYOTHERAPY; EXPERIENCE; ABLATION
AB OBJECTIVE To analyze outcomes and complications of percutaneous (PRC) and laparoscopic renal cryoablation (LRC) using the radius, endophytic, nearness to collecting system, anterior/posterior, and location (RENAL) nephrometry system.
METHODS Retrospective multicenter analysis of 154 consecutive patients who underwent either ultrasound-guided LRC (n = 88) or computed tomography (CT)-guided PRC (n = 66) from March 2003 to December 2011. RENAL score and demographics were compared to postoperative complications (Clavien). Multivariable analysis was carried out for factors associated with development of postprocedure complications.
RESULTS Mean age was 68 years (94 men/60 women). Median follow-up was 34 months (range 23.6-45.6 months). Mean tumor size was 2.6 +/- 1 cm. Mean RENAL score was 5.2 +/- 1.4. Differences in (A) nterior/posterior component and (H)ilar domain of the RENAL scores were noted, with PRC favoring posterior tumors and hilar lesions compared to LRC (P < .001 and P = .044, respectively). There were 14.9% complications, all of which were low-grade (Clavien 1,2). There were no differences in complications between LRC and PRC (15.9% vs 13.6%, P = .82). Most common complication type was hemorrhagic in 9 of 154 patients (5.8%); significant increase in the hemorrhagic complication rate was noted for patients with "N" ("nearness") component score of 2 or 3 (5/36, or 13.9%), compared to patients with "N" score of 1 (4/115 or 3.5%, P = .033). multivariable analysis demonstrated that increasing RENAL score was associated with postprocedure complications (odds ratio [OR] = 1.37, P = .025). When separated into individual domains, multivariable analysis revealed that "N" score 3 was significantly associated with postoperative complications (OR 16.15, P = .027).
CONCLUSION Increasing RENAL score was associated development of postprocedure complications after renal cryotherapy. Further investigation is requisite to elucidate the role of RENAL nephrometry score in risk stratification prior to renal cryotherapy. UROLOGY 81: 775-780, 2013. (C) 2013 Elsevier Inc.
C1 Univ Calif San Diego, Sch Med, Dept Surg, Div Urol, La Jolla, CA 92093 USA.
Univ Tennessee, Ctr Hlth Sci, Dept Urol, Memphis, TN 38163 USA.
Univ Tennessee, Ctr Hlth Sci, Sect Intervent Radiol, Memphis, TN 38163 USA.
USN, Dept Urol, Med Ctr San Diego, San Diego, CA 92152 USA.
RP Derweesh, IH (reprint author), Moores UCSD Canc Ctr, Div Urol, 3855 Hlth Sci Dr,Mail Code 0987, La Jolla, CA 92093 USA.
EM iderweesh@gmail.com
NR 31
TC 23
Z9 23
U1 0
U2 4
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0090-4295
J9 UROLOGY
JI Urology
PD APR
PY 2013
VL 81
IS 4
BP 775
EP 780
DI 10.1016/j.urology.2012.11.037
PG 6
WC Urology & Nephrology
SC Urology & Nephrology
GA 119RX
UT WOS:000317116300021
PM 23434099
ER
PT J
AU Melcher, ML
Blosser, CD
Baxter-Lowe, LA
Delmonico, FL
Gentry, SE
Leishman, R
Knoll, GA
Leffell, MS
Leichtman, AB
Mast, DA
Nickerson, PW
Reed, EF
Rees, MA
Rodrigue, JR
Segev, DL
Serur, D
Tullius, SG
Zavala, EY
Feng, S
AF Melcher, M. L.
Blosser, C. D.
Baxter-Lowe, L. A.
Delmonico, F. L.
Gentry, S. E.
Leishman, R.
Knoll, G. A.
Leffell, M. S.
Leichtman, A. B.
Mast, D. A.
Nickerson, P. W.
Reed, E. F.
Rees, M. A.
Rodrigue, J. R.
Segev, D. L.
Serur, D.
Tullius, S. G.
Zavala, E. Y.
Feng, S.
TI Dynamic Challenges Inhibiting Optimal Adoption of Kidney Paired
Donation: Findings of a Consensus Conference
SO AMERICAN JOURNAL OF TRANSPLANTATION
LA English
DT Article
DE Allocation; donor evaluation; finances; histocompatibility testing;
kidney paired donation; nondirected donors; paired kidney exchange;
transport
ID CLINICAL-RELEVANCE; EXCHANGE PROGRAMS; CROSS-MATCHES; DONOR KIDNEYS;
TRANSPLANTATION; CHAIN; PARTICIPATION; EXPERIENCE; TRANSPORT; OUTCOMES
AB While kidney paired donation (KPD) enables the utilization of living donor kidneys from healthy and willing donors incompatible with their intended recipients, the strategy poses complex challenges that have limited its adoption in United States and Canada. A consensus conference was convened March 2930, 2012 to address the dynamic challenges and complexities of KPD that inhibit optimal implementation. Stakeholders considered donor evaluation and care, histocompatibility testing, allocation algorithms, financing, geographic challenges and implementation strategies with the goal to safely maximize KPD at every transplant center. Best practices, knowledge gaps and research goals were identified and summarized in this document.
C1 [Melcher, M. L.] Stanford Univ, Dept Surg, Stanford, CA 94305 USA.
[Blosser, C. D.] Univ Iowa, Dept Internal Med, Iowa City, IA 52242 USA.
[Baxter-Lowe, L. A.; Feng, S.] UCSF, Dept Surg, San Francisco, CA USA.
[Delmonico, F. L.] Massachusetts Gen Hosp, Dept Surg, Boston, MA 02114 USA.
[Delmonico, F. L.] New England Organ Bank Inc, Boston, MA USA.
[Gentry, S. E.] USN Acad, Dept Math, Annapolis, MD 21402 USA.
[Leishman, R.] United Network Organ Sharing, Richmond, VA USA.
[Knoll, G. A.] Ottawa Hosp, Dept Med, Ottawa, ON, Canada.
[Leffell, M. S.] Johns Hopkins Univ, Sch Med, Dept Med, Baltimore, MD 21205 USA.
[Leichtman, A. B.] Univ Michigan, Dept Internal Med, Ann Arbor, MI 48109 USA.
[Mast, D. A.] Stanford Hosp & Clin, Palo Alto, CA USA.
[Nickerson, P. W.] Univ Manitoba, Dept Internal Med, Winnipeg, MB, Canada.
[Reed, E. F.] Univ Calif Los Angeles, Dept Pathol, Los Angeles, CA 90024 USA.
[Rees, M. A.] Univ Toledo, Med Ctr, Dept Urol & Pathol, Toledo, OH 43606 USA.
[Rodrigue, J. R.] Beth Israel Deaconess Med Sch, Transplant Inst, Boston, MA USA.
[Segev, D. L.] Johns Hopkins Univ, Dept Surg, Baltimore, MD USA.
[Serur, D.] Cornell Univ, Dept Surg, New York, NY 10021 USA.
[Tullius, S. G.] Harvard Univ, Brigham & Womens Hosp, Dept Surg, Boston, MA 02115 USA.
[Zavala, E. Y.] Vanderbilt Univ, Dept Surg, Med Ctr, Nashville, TN 37240 USA.
RP Feng, S (reprint author), UCSF, Dept Surg, San Francisco, CA USA.
EM sandy.feng@ucsfmedctr.org
OI Nickerson, Peter/0000-0002-7393-7799; Melcher, Marc/0000-0002-7185-4383
FU AHRQ HHS [R18 HS020610]
NR 37
TC 19
Z9 19
U1 1
U2 6
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1600-6135
EI 1600-6143
J9 AM J TRANSPLANT
JI Am. J. Transplant.
PD APR
PY 2013
VL 13
IS 4
BP 851
EP 860
DI 10.1111/ajt.12140
PG 10
WC Surgery; Transplantation
SC Surgery; Transplantation
GA 116VT
UT WOS:000316911900008
PM 23398969
ER
PT J
AU Kim, HY
Kim, J
Freitas, JA
AF Kim, Hong-Yeol
Kim, Jihyun
Freitas, Jaime A., Jr.
TI Penetration depth profiling of proton-irradiated 4H-SiC at 6 MeV and 8
MeV by micro-Raman spectroscopy
SO APPLIED SURFACE SCIENCE
LA English
DT Article
DE 4H-SiC; Proton irradiation; Raman spectroscopy
ID PHOTOLUMINESCENCE SPECTROSCOPY; SILICON-CARBIDE; N-GAN; ELECTRON;
DEFECTS; SEMICONDUCTORS; RADIATION; SCATTERING; DAMAGE; 4H
AB 4H-SiC samples irradiated with high energy protons were probed by low temperature photoluminescence (PL) and room temperature micro-Raman scattering spectroscopies. The quench of the near band-edge emission and the presence of a number of new sharp lines in the luminescence spectra of the proton-irradiated samples confirm the formation of various new defects. The changes of the line-shape and peak position of the longitudinal optical phonon-plasmon coupled (LOPC) mode in 4H-SiC are consistent with the decrease in the free carrier concentrations due to the introduction of carrier traps induced by the high energy proton irradiation. The estimated penetration depths for 6 and 8 MeV energy proton were 180 mu m and 300 mu m, respectively, which are in good agreement with the Monte Carlo numerical simulation results. At the 180 mu m and 300 mu m depths, the carrier concentrations were reduced by approximately 34% and 21%, respectively. (c) 2012 Elsevier B.V. All rights reserved.
C1 [Kim, Hong-Yeol; Kim, Jihyun] Korea Univ, Dept Chem & Biol Engn, Seoul 136713, South Korea.
[Freitas, Jaime A., Jr.] USN, Res Lab, Washington, DC 20375 USA.
RP Kim, J (reprint author), Korea Univ, Dept Chem & Biol Engn, Seoul 136713, South Korea.
EM hyunhyun7@korea.ac.kr
RI Kim, Jihyun/F-6940-2013
FU Human Resources Development grant from the Korea Institute of Energy
Technology Evaluation and Planning (KETEP); Ministry of Knowledge
Economy [20104010100640]; Basic Science Research Program through the
National Research Foundation of Korea (NRF); Ministry of Education,
Science and Technology [2012R1A1A2042761]
FX The work at Korea University was supported by a Human Resources
Development grant from the Korea Institute of Energy Technology
Evaluation and Planning (KETEP) funded by the Ministry of Knowledge
Economy (no. 20104010100640) and Basic Science Research Program through
the National Research Foundation of Korea (NRF) funded by the Ministry
of Education, Science and Technology (grant no. 2012R1A1A2042761).
NR 27
TC 2
Z9 2
U1 1
U2 25
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0169-4332
J9 APPL SURF SCI
JI Appl. Surf. Sci.
PD APR 1
PY 2013
VL 270
BP 44
EP 48
DI 10.1016/j.apsusc.2012.12.014
PG 5
WC Chemistry, Physical; Materials Science, Coatings & Films; Physics,
Applied; Physics, Condensed Matter
SC Chemistry; Materials Science; Physics
GA 115CO
UT WOS:000316790200007
ER
PT J
AU Najita, JR
Carr, JS
Pontoppidan, KM
Salyk, C
van Dishoeck, EF
Blake, GA
AF Najita, Joan R.
Carr, John S.
Pontoppidan, Klaus M.
Salyk, Colette
van Dishoeck, Ewine F.
Blake, Geoffrey A.
TI THE HCN-WATER RATIO IN THE PLANET FORMATION REGION OF DISKS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE circumstellar matter; protoplanetary disks; stars: pre-main sequence
ID MIDINFRARED MOLECULAR-EMISSION; T-TAURI STARS; ORGANIC-MOLECULES;
PROTOPLANETARY DISKS; CIRCUMSTELLAR DISKS; SPITZER SURVEY; EVOLUTION;
MODELS; DUST; II.
AB We find a trend between the mid-infrared HCN/H2O flux ratio and submillimeter disk mass among T Tauri stars in Taurus. While it may seem puzzling that the molecular emission properties of the inner disk ( C is uniquely determined by the formula chi (g) = mu(1)(Fix(g))(alpha 1) ... mu(k)(Fix(g))(alpha k), where mu(1), ... , mu(k) are G-ergodic measures, Fix(g) = {x is an element of X: gx = x}, and alpha(1), ... , alpha(k) is an element of {0, 1, ... }. We illustrate our results on the group of rational permutations of the unit interval. Published by Elsevier Inc.
C1 [Dudko, Artem] SUNY Stony Brook, Stony Brook, NY 11794 USA.
[Medynets, Konstantin] USN Acad, Annapolis, MD 21402 USA.
RP Dudko, A (reprint author), SUNY Stony Brook, Stony Brook, NY 11794 USA.
EM artem.dudko@stonybrook.edu; medynets@usna.edu
FU Erwin Schrodinger Institute for Mathematical Physics in Vienna
FX The second-named author would like to acknowledge the support and
hospitality of Erwin Schrodinger Institute for Mathematical Physics in
Vienna.
NR 43
TC 7
Z9 7
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 0022-1236
J9 J FUNCT ANAL
JI J. Funct. Anal.
PD APR 1
PY 2013
VL 264
IS 7
BP 1565
EP 1598
DI 10.1016/j.jfa.2013.01.013
PG 34
WC Mathematics
SC Mathematics
GA 099YR
UT WOS:000315662400003
ER
PT J
AU Netwall, CJ
Gould, BD
Rodgers, JA
Nasello, NJ
Swider-Lyons, KE
AF Netwall, Christopher J.
Gould, Benjamin D.
Rodgers, Joseph A.
Nasello, Nicholas J.
Swider-Lyons, Karen E.
TI Decreasing contact resistance in proton-exchange membrane fuel cells
with metal bipolar plates
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Fuel cell; Contact resistance; Clamping pressure; Metal bipolar-plate
ID POLYMER ELECTROLYTE MEMBRANES; CLAMPING PRESSURE
AB Ohmic, or (IR)-R-2, losses occur in electrochemical devices, such as proton -exchange membrane fuel cells (PEMFCs) due to the resistance of materials and the contact resistance between the electrochemical active area, the gas diffusion and current collector materials. Such losses must be lessened to maximize the conversion of chemical energy to electricity rather than heat. We probe how to decrease the contact resistance in PEMFCs with metal bipolar plates with state-of-the-art membrane electrode assemblies, specifically Au/TiO2-coated titanium bipolar plates (BPPs), gas diffusion layers with microporous layers (GDLs with MPLs), and catalyst-coated membranes (CCMs) comprising a 15-mu m-thick proton-exchange membranes. Through in situ tests of a model system, we find that the system resistance decreases after a compression break-in cycle and then remains low subsequently by keeping the stack assembly compressed at >1 MPa. Ex situ tests show that the surface roughness of the BPPs also affects contact resistance with the GDLs. After accounting for the bulk resistance of the cell constituents (BPPs, GDLs, MPLs and CCMs), we conclude that in a state-of-the-art PEMFC, the contact resistances between the materials contribute 55% of the total (IR)-R-2 losses, and thus dominate the ohmic loss contributions. Published by Elsevier B.V.
C1 [Netwall, Christopher J.; Gould, Benjamin D.; Rodgers, Joseph A.; Nasello, Nicholas J.; Swider-Lyons, Karen E.] USN, Res Lab, Washington, DC 20375 USA.
RP Swider-Lyons, KE (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM karen.lyons@nrl.navy.mil
FU Office of Naval Research
FX The authors would like to thank the Office of Naval Research for
financial support of this work. NJN was a summer intern through the
Naval Research Enterprise Intern Program (NREIP). We are grateful to Mr.
Douglas Wheeler of DJW Technologies for his constructive advice and
guidance.
NR 27
TC 16
Z9 16
U1 2
U2 66
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
J9 J POWER SOURCES
JI J. Power Sources
PD APR 1
PY 2013
VL 227
BP 137
EP 144
DI 10.1016/j.jpowsour.2012.11.012
PG 8
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 095BQ
UT WOS:000315309900022
ER
PT J
AU Riahi, S
Beyler, CL
Hartman, J
AF Riahi, Siamak
Beyler, Craig L.
Hartman, JudithAnn
TI Wall Smoke Deposition from a Hot Smoke Layer
SO FIRE TECHNOLOGY
LA English
DT Article
DE Smoke; Deposition; Thermophoresis
ID PARTICLES
AB Smoke deposition from a hot smoke layer onto wall surfaces was studied in a hood apparatus using polymethylmethacrylate, polypropylene, and gasoline as fuels. Based upon prior analysis by Butler and Mulholland, the smoke deposition was expected to be dominated by thermophoresis. The deposited smoke samples were collected on glass filter paper attached to the hood wall and the mass per unit area of smoke deposited was measured gravimetrically. Measurements were made of quantities required for the prediction of thermophoretic smoke deposition. The smoke deposition measured in the experimental program was well predicted by the thermophoretic smoke deposition equation. The thermophoretic smoke deposition equation was found to be suitable for predicting smoke deposition onto wall surfaces exposed to fire environments.
C1 [Riahi, Siamak] George Washington Univ, Dept Civil & Environm Engn, Washington, DC 20052 USA.
[Beyler, Craig L.] Hughes Associates, Baltimore, MD 21227 USA.
[Hartman, JudithAnn] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
RP Riahi, S (reprint author), George Washington Univ, Dept Civil & Environm Engn, Phillips Hall,Room 643 Acad Ctr,801 22nd St NW, Washington, DC 20052 USA.
EM sriahi@gwmail.gwu.edu
NR 17
TC 3
Z9 3
U1 0
U2 16
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0015-2684
J9 FIRE TECHNOL
JI Fire Technol.
PD APR
PY 2013
VL 49
IS 2
BP 395
EP 409
DI 10.1007/s10694-012-0273-x
PG 15
WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA 072CI
UT WOS:000313645600009
ER
PT J
AU Fragiadakis, D
Roland, CM
AF Fragiadakis, D.
Roland, C. M.
TI Are polar liquids less simple?
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATION; PRESSURE-DEPENDENCE; ALPHA-RELAXATION;
HYDROGEN-BONDS; METHANOL; TEMPERATURE; WATER; DIFFUSION; POLYMERS;
DENSITY
AB Strong correlation between equilibrium fluctuations under isochoric conditions of the potential energy, U, and the virial, W, is a characteristic of liquids that implies the presence of certain dynamic properties, such as density scaling of the relaxation times and isochronal superpositioning of the relaxation function. In this work we employ molecular dynamics simulations on methanol and two variations, lacking hydrogen bonds and a dipole moment, to assess the connection between the correlation of U and W and these dynamic properties. We show, in accord with prior results of others [T. S. Ingebrigtsen, T. B. Schroder, and J. C. Dyre, Phys. Rev. X 2, 011011 (2012)], that simple van der Waals liquids exhibit both strong correlations and the expected dynamic behavior. However, for polar liquids this correspondence breaks down-weaker correlation between U and W is not associated with worse conformance to density scaling or isochronal superpositioning. The reason for this is that strong correlation between U and W only requires their proportionality, whereas the expected dynamic behavior depends primarily on constancy of the proportionality constant for all state points. For hydrogen-bonded liquids, neither strong correlation nor adherence to the dynamic properties is observed; however, this nonconformance is not directly related to the concentration of hydrogen bonds, but rather to the greater deviation of the intermolecular potential from an inverse power law (IPL). Only (hypothetical) liquids having interactions governed strictly by an IPL are perfectly correlating and exhibit the consequent dynamic properties over all thermodynamic conditions. [http://dx.doi.org/10.1063/1.4769262]
C1 [Fragiadakis, D.; Roland, C. M.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Fragiadakis, D (reprint author), USN, Res Lab, Div Chem, Code 6120, Washington, DC 20375 USA.
RI Fragiadakis, Daniel/A-4510-2009
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 49
TC 4
Z9 4
U1 1
U2 18
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD MAR 28
PY 2013
VL 138
IS 12
AR 12A502
DI 10.1063/1.4769262
PG 6
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 117QZ
UT WOS:000316969500004
PM 23556753
ER
PT J
AU Wang, YJ
Finkel, P
Li, JF
Viehland, D
AF Wang, Yaojin
Finkel, P.
Li, Jiefang
Viehland, D.
TI Mechanical loss and magnetoelectric response in
magnetostrictive/interdigitated-electrode/piezoelectric laminated
resonators
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID COMPOSITES
AB The mechanical quality factor and the resonant magnetoelectric (ME) response of multi-push-pull mode Metglas/interdigitated (ID)-electrode/Pb(Zr,Ti)O-3 (PZT) ME resonators have been studied as a function of ID-electrode geometry for both sandwich and bimorph configurations. The results show that the mechanical quality factor of the PZT core composite and the effective mechanical quality factor of the ME resonator are increased with increasing ID-electrode spacing. The sandwich resonator was found to exhibit a higher effective mechanical quality factor than the bimorph one. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4798300]
C1 [Wang, Yaojin; Li, Jiefang; Viehland, D.] Virginia Tech, Mat Sci & Engn, Blacksburg, VA 24061 USA.
[Finkel, P.] USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Wang, YJ (reprint author), Virginia Tech, Mat Sci & Engn, Blacksburg, VA 24061 USA.
EM yaojin@vt.edu
RI Wang, Yaojin/F-3748-2012
OI Wang, Yaojin/0000-0003-2561-1855
NR 17
TC 3
Z9 3
U1 4
U2 65
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAR 28
PY 2013
VL 113
IS 12
AR 124508
DI 10.1063/1.4798300
PG 3
WC Physics, Applied
SC Physics
GA 117QI
UT WOS:000316967800060
ER
PT J
AU Le, A
Egedal, J
Ohia, O
Daughton, W
Karimabadi, H
Lukin, VS
AF Le, A.
Egedal, J.
Ohia, O.
Daughton, W.
Karimabadi, H.
Lukin, V. S.
TI Regimes of the Electron Diffusion Region in Magnetic Reconnection
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID CURRENT SHEETS; MOTION
AB The electron diffusion region during magnetic reconnection lies in different regimes depending on the pressure anisotropy, which is regulated by the properties of thermal electron orbits. In kinetic simulations at the weakest guide fields, pitch angle mixing in velocity space causes the outflow electron pressure to become nearly isotropic. Above a threshold guide field that depends on a range of parameters, including the normalized electron pressure and the ion-to-electron mass ratio, electron pressure anisotropy develops in the exhaust and supports extended current layers. This new regime with electron current sheets extending to the system size is also reproduced by fluid simulations with an anisotropic closure for the electron pressure. It offers an explanation for recent spacecraft observations. DOI: 10.1103/PhysRevLett.110.135004
C1 [Le, A.; Egedal, J.; Ohia, O.] MIT, Dept Phys, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
[Daughton, W.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Karimabadi, H.] SciberQuest, Del Mar, CA 92014 USA.
[Lukin, V. S.] USN, Res Lab, Washington, DC 20375 USA.
RP Le, A (reprint author), MIT, Dept Phys, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
RI Daughton, William/L-9661-2013
FU DOE Junior Faculty [DE-FG02-06ER54878]; NASA [NNH11CC65C]; NASA
Heliophysics Theory Program; NASA Solar and Heliospheric Physics Program
FX The work was funded in part by DOE Junior Faculty Grant No.
DE-FG02-06ER54878 and NASA Grant No. NNH11CC65C. Contributions from W.
D. were supported by the NASA Heliophysics Theory Program and from V. S.
L. were supported by the NASA Solar and Heliospheric Physics Program.
Simulations were performed on Pleiades provided by NASA's HEC Program,
on Hopper provided by NERSC, and with Los Alamos Institutional Computing
resources.
NR 24
TC 37
Z9 37
U1 1
U2 24
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAR 28
PY 2013
VL 110
IS 13
AR 135004
DI 10.1103/PhysRevLett.110.135004
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 115GG
UT WOS:000316800000010
PM 23581331
ER
PT J
AU Queen, DR
Liu, X
Karel, J
Metcalf, TH
Hellman, F
AF Queen, D. R.
Liu, X.
Karel, J.
Metcalf, T. H.
Hellman, F.
TI Excess Specific Heat in Evaporated Amorphous Silicon
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID LOW-ENERGY EXCITATIONS; THERMAL-CONDUCTIVITY; LOW-TEMPERATURES; A-SI;
GLASSES; SOLIDS; SIMULATION; GERMANIUM; ASXSE1-X; CAPACITY
AB The specific heat C of e-beam evaporated amorphous silicon (a-Si) thin films prepared at various growth temperatures T-S and thicknesses t was measured from 2 to 300 K, along with sound velocity v, shear modulus G, density n(Si), and Raman spectra. Increasing T-S results in a more ordered amorphous network with increases in n(Si), v, G, and a decrease in bond angle disorder. Below 20 K, an excess C is seen in films with less than full density where it is typical of an amorphous solid, with both a linear term characteristic of two-level systems (TLS) and an additional (non-Debye) T-3 contribution. The excess C is found to be independent of the elastic properties but to depend strongly on density. The density dependence suggests that low energy glassy excitations can form in a-Si but only in microvoids or low density regions and are not intrinsic to the amorphous silicon network. A correlation is found between the density of TLS n(0) and the excess T-3 specific heat c(ex) suggesting that they have a common origin. DOI: 10.1103/PhysRevLett.110.135901
C1 [Queen, D. R.; Hellman, F.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Queen, D. R.; Liu, X.; Metcalf, T. H.] USN, Res Lab, Washington, DC 20375 USA.
[Karel, J.; Hellman, F.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
RP Queen, DR (reprint author), USN, Res Lab, Washington, DC 20375 USA.
RI Karel, Julie/J-5305-2014
FU NSF [DMR-0907724]; U.S. Department of Energy [DE-AC02-05CH11231]; Office
of Naval Research
FX We thank G. T. Hohensee and D. G. Cahill for sound velocity, K. M. Yu
for assistance with RBS, D. J. Smith for TEM, J. W. Ager for assistance
with Raman, and D. Bobela for ESR. CP measurements supported
by NSF DMR-0907724, film growth and nanocalorimeter development
supported by the U.S. Department of Energy DE-AC02-05CH11231, and
internal friction measurements supported by the Office of Naval
Research.
NR 40
TC 12
Z9 12
U1 4
U2 37
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAR 28
PY 2013
VL 110
IS 13
AR 135901
DI 10.1103/PhysRevLett.110.135901
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 115GG
UT WOS:000316800000013
PM 23581344
ER
PT J
AU Allen, DR
Douglass, AR
Strahan, SE
AF Allen, Douglas R.
Douglass, Anne R.
Strahan, Susan E.
TI The large-scale frozen-in anticyclone in the 2011 Arctic summer
stratosphere
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID NORTHERN-HEMISPHERE; TRANSPORT MODEL; GMI CHEMISTRY; OZONE LOSS;
CLIMATOLOGY; VORTEX
AB The 2011 Arctic stratospheric final warming was characterized by a large-scale frozen-in anticyclone (FrIAC) that rapidly displaced the winter polar vortex, establishing unusually strong polar easterlies. A comprehensive overview of the 2011 FrIAC is provided using meteorological analyses, Microwave Limb Sounder (MLS) N2O observations, and N2O simulations from the Global Modeling Initiative (GMI) 3-D chemistry and transport model and the Van Leer Icosahedral Triangular Advection (VITA) 2-D (latitude x longitude) isentropic transport model. A vortex edge diagnostic is used to determine the FrIAC boundary, allowing quantification of several FrIAC properties. The 2011 FrIAC originated over North Africa in late March and traveled eastward and poleward over 2 weeks, forming a strong anticyclone that extended from similar to 580-2100 K potential temperature (similar to 25-50 km). Low potential vorticity (PV) was transported to the pole with the FrIAC in early April; during May, most of the PV signature decayed due to diabatic processes. A small remnant negative PV anomaly persisted near the pole until mid-June. Tracer equivalent latitude was low initially and remained low throughout the summer. GMI, VITA, and MLS showed elevated N2O in the FrIAC, although the peak value was smaller in GMI due to a subtropical low bias. The high-resolution (similar to 20 km) VITA filamentary structure quantitatively matched most of the features observed by MLS when smoothed to match the MLS resolution. The high-N2O anomaly persisted in the middle stratosphere over 4 months until late August, when it was destroyed by horizontal and vertical shearing, combined with photochemical processes. Citation: Allen, D. R., A. R. Douglass, and S. E. Strahan (2013), The large-scale frozen-in anticyclone in the 2011 Arctic summer stratosphere, J. Geophys. Res. Atmos., 118, 2656-2672, doi:10.1002/jgrd.50256.
C1 [Allen, Douglas R.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Douglass, Anne R.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Strahan, Susan E.] Univ Space Res Assoc, Columbia, MD USA.
RP Allen, DR (reprint author), USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM Douglas.Allen@nrl.navy.mil
RI Douglass, Anne/D-4655-2012
FU NASA Atmospheric Composition: Modeling and Analysis Program
[NNHH09ZDA001N]; Office of Naval Research
FX This work was supported by a subcontract from the NASA Atmospheric
Composition: Modeling and Analysis Program, NNHH09ZDA001N. Work at the
Naval Research Laboratory is sponsored by the Office of Naval Research.
We would like to thank Gloria Manney for providing the gridded MLS data
used to initialize the VITA simulations. We also acknowledge the Global
Modeling and Assimilation Office and the Goddard Earth Science Data and
Information Services Center for the dissemination of MERRA products.
NR 41
TC 3
Z9 3
U1 0
U2 20
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD MAR 27
PY 2013
VL 118
IS 6
BP 2656
EP 2672
DI 10.1002/jgrd.50256
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 129MB
UT WOS:000317843200016
ER
PT J
AU Epshteyn, A
Yonke, BL
Miller, JB
Rivera-Diaz, JL
Purdy, AP
AF Epshteyn, Albert
Yonke, Brendan L.
Miller, Joel B.
Rivera-Diaz, Julissa L.
Purdy, Andrew P.
TI Sonochemically Generated Air-Stable Bimetallic Nanopowders of Group 4
Transition Metals with Aluminum
SO CHEMISTRY OF MATERIALS
LA English
DT Article
DE reactive metal; nanoparticle; fuel; intermetallic; sonochemical;
aluminide; carbide; group 4
ID VAPOR-PRESSURE; NMR; ACTIVATION; COMPLEXES; CATALYSTS; ELEMENTS; NUCLEI;
POWDER
AB Air-stable reactive metal nanopowders (RMNPs) of group 4 transition metals and aluminum were produced via a sonochemically agitated reaction of MCl4 (M = Ti, Zr, HO with 4 equiv of lithium aluminum hydride (LiAlH4, LAN) under an atmosphere of N-2 in Et2O, generating in situ the tetrahydroaluminate of the respective group 4 metal. The subsequent decomposition of the tetrahydroaluminate complex via elimination of H-2 produced black powders that were further dried and subsequently annealed in vacuo to temperatures ranging from 620 to 860 degrees C, simultaneously subliming LiCl and Al byproducts for ease of purification, and producing air-stable RMNPs, which were then analyzed by elemental analysis, X-ray diffraction (XRD), scanning electron microscopy/energy-dispersive spectroscopy (SEM/EDS), magic-angle spinning (MAS) NMR, thermogravimetric analysis/differential scanning calorimetry (TGA/DSC), and oxygen bomb calorimetry. Elemental analysis of the materials showed a significant presence of H, C, and N in the product materials. For each of the metal combinations the XRD analysis showed the presence of two main phases that have the same lattice parameters as the cubic metal carbide phase and the tetragonal Al3M phase of each of the group 4 transition metals. Each of the phases exhibited nanocrystallites, with the more refractory carbide phase producing approximately 5 nm crystallites, and the aluminide phase producing 20 nm crystallites based on Scherrer analysis. SEM confirmed that the materials consist of small individual crystallites that are agglomerated into larger structures. The observed Al-27 MAS NMR resonances can be assigned to Al-0, Al3M alloys, and Aln+ ionic species. The TGA data showed the superior stability of these materials exhibiting reactivity with O-2 only at temperatures approaching 400 degrees C. The combustion energy of these RMNPs was then measured using oxygen bomb calorimetry, which confirmed that the air-exposed RMNPs are capable of producing at least 26 kJ/g when combusted in O-2 (as in the case of the titanium aluminum material), and therefore may have potential to be useful fuels.
C1 [Epshteyn, Albert; Yonke, Brendan L.; Miller, Joel B.; Rivera-Diaz, Julissa L.; Purdy, Andrew P.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Epshteyn, A (reprint author), USN, Res Lab, Div Chem, Washington, DC 20375 USA.
EM albert.epshteyn@nrl.navy.mil
FU Office of Naval Research
FX We thank the Office of Naval Research for continuing support. Thank you
to Mr. Mitch Bogle for helpful discussions. A special thank you to Dr.
Arthur Snow for helpful discussions and for furnishing the AIVN.
NR 21
TC 5
Z9 5
U1 3
U2 40
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0897-4756
J9 CHEM MATER
JI Chem. Mat.
PD MAR 26
PY 2013
VL 25
IS 6
BP 818
EP 824
DI 10.1021/cm3001943
PG 7
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 115YF
UT WOS:000316847100002
ER
PT J
AU Zulick, C
Dollar, F
Chvykov, V
Davis, J
Kalinchenko, G
Maksimchuk, A
Petrov, GM
Raymond, A
Thomas, AGR
Willingale, L
Yanovsky, V
Krushelnick, K
AF Zulick, C.
Dollar, F.
Chvykov, V.
Davis, J.
Kalinchenko, G.
Maksimchuk, A.
Petrov, G. M.
Raymond, A.
Thomas, A. G. R.
Willingale, L.
Yanovsky, V.
Krushelnick, K.
TI Energetic neutron beams generated from femtosecond laser plasma
interactions
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID HIGH-INTENSITY LASER; ION-BEAMS; RADIOGRAPHY; TARGETS; PULSES
AB Experiments at the HERCULES laser facility have produced directional neutron beams with energies up to 16.8(+/- 0.3) MeV using (2)(1)d(d, n)(2)He-3; Li-7(3)(p, n)(4)Be-7; and Li-7(3)(d, n)(4)Be-8 reactions. Efficient Li-7(3)(d, n)(4)Be-8 reactions required the selective acceleration of deuterons through the introduction of a deuterated plastic or cryogenically frozen D2O layer on the surface of a thin film target. The measured neutron yield was <= 1.0 (+/- 0.5) x 10(7) neutrons/sr with a flux 6.2(+/- 3.7) times higher in the forward direction than at 90 . This demonstrates that femtosecond lasers are capable of providing a time averaged neutron flux equivalent to commercial (2)(1)d(d, n)(2)He-3 generators with the advantage of a directional beam with picosecond bunch duration. (C) 2013 American Institute of Physics. [http://dx. doi. org/10.1063/1.4795723]
C1 [Zulick, C.; Dollar, F.; Chvykov, V.; Kalinchenko, G.; Maksimchuk, A.; Raymond, A.; Thomas, A. G. R.; Willingale, L.; Yanovsky, V.; Krushelnick, K.] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA.
[Davis, J.; Petrov, G. M.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Zulick, C (reprint author), Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA.
RI Yanovsky, Victor/B-5899-2008; Dollar, Franklin/C-9214-2013; Kalinchenko,
Galina/G-5684-2014;
OI Dollar, Franklin/0000-0003-3346-5763; Thomas,
Alexander/0000-0003-3206-8512
FU Office of Naval Research through the Naval Research Laboratory
FX The authors would like to acknowledge support from the Office of Naval
Research through the Naval Research Laboratory. The authors would also
like to thank the University of Michigan Neutron Science Laboratory for
use of the D-D generator.
NR 26
TC 14
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U1 0
U2 30
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 25
PY 2013
VL 102
IS 12
AR 124101
DI 10.1063/1.4795723
PG 4
WC Physics, Applied
SC Physics
GA 117QB
UT WOS:000316967100095
ER
PT J
AU Tsoi, S
Zhou, J
Spillmann, C
Naciri, J
Ikeda, T
Ratna, B
AF Tsoi, Stanislav
Zhou, Jing
Spillmann, Christopher
Naciri, Jawad
Ikeda, Tomiki
Ratna, Banahalli
TI Liquid-Crystalline Nano-optomechanical Actuator
SO MACROMOLECULAR CHEMISTRY AND PHYSICS
LA English
DT Article
DE atomic force microscopy (AFM); azo polymers; kinetics; nanoparticles;
stimuli-sensitive polymers
ID PHOTOINDUCED BENDING BEHAVIOR; ELASTOMERS; AZOBENZENE; POLYMERS;
NANOPARTICLES; COLLOIDS; MUSCLES; MOTORS; LIGHT; FILMS
AB The synthesis and characterization of organic nanoparticles composed of a polymer network of azobenzene moieties and capable of reproducible, photoinduced mechanical actuation are reported. The molecules within the nanoparticles undergo co-ordinated, reversible isomerization between cis- and trans-conformations in response to ultraviolet and visible electromagnetic radiation, resulting in a reversible 20% height contraction of nanoparticles adsorbed on a substrate. The kinetics of the actuation response as a function of light intensity and duration are reported and closely match the molecular kinetics of azobenzene photoisomerization. The results support the proposed mechanism of co-ordinated molecular conformational changes resulting in observable nanoscale actuation.
C1 [Tsoi, Stanislav; Zhou, Jing; Spillmann, Christopher; Naciri, Jawad; Ratna, Banahalli] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Ikeda, Tomiki] Tokyo Inst Technol, Chem Resources Lab, Yokohama, Kanagawa 2268503, Japan.
RP Spillmann, C (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM christopher.spillmann@nrl.navy.mil
FU Defense Threat Reduction Agency; Office of Naval Research; National
Research Council
FX This work was supported by the Defense Threat Reduction Agency and the
Office of Naval Research. J.Z. acknowledges the National Research
Council for a post-doctoral associateship.
NR 38
TC 8
Z9 8
U1 3
U2 82
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1022-1352
J9 MACROMOL CHEM PHYS
JI Macromol. Chem. Phys.
PD MAR 25
PY 2013
VL 214
IS 6
BP 734
EP 741
DI 10.1002/macp.201200581
PG 8
WC Polymer Science
SC Polymer Science
GA 108LQ
UT WOS:000316295000011
ER
PT J
AU Field, CR
Lubrano, AL
Rogers, DA
Giordano, BC
Collins, GE
AF Field, Christopher R.
Lubrano, Adam L.
Rogers, Duane A.
Giordano, Braden C.
Collins, Greg E.
TI Direct liquid deposition calibration method for trace
cyclotrimethylenetrinitramine using thermal desorption instrumentation
SO JOURNAL OF CHROMATOGRAPHY A
LA English
DT Article
DE Explosives; GC-ECD; Quantitation; RDX; Thermal desorption; Cryo-focusing
ID ELECTRON-CAPTURE DETECTION; EXPLOSIVES-DETECTION; VAPOR-PHASE;
2,4,6-TRINITROTOLUENE; CHROMATOGRAPHY; GENERATION; SENSORS
AB A simple method for establishing calibration curves with sorbent-filled thermal desorption tubes has been demonstrated for nitroaromatic and nitramine vapor samples using a thermal desorption system with a cooled inlet system (TDS-CIS), which was coupled to a gas chromatograph (GC) with an electron capture detector (ECD). The method relies upon the direct liquid deposition of standard solutions onto the glass frit at the head of sorbent-filled thermal desorption tubes. Linear calibration results and ideal system conditions for the TDS-CIS-GC-ECD were established for mixtures containing both cyclotrimethylen-etrinitramine, a.k.a. RDX, and 2,4,6-trinitrotoluene (TNT). Because of the chemical characteristics of RDX, a higher TDS-CIS flow rate relative to the optimized approach for TNT was required for efficient RDX desorption. Simultaneous quantitation of TNT and RDX using the direct liquid deposition method with optimized instrumentation parameters for RDX were compared to results from a standard split/splitless GC inlet and a CIS. Published by Elsevier B.V.
C1 [Field, Christopher R.; Rogers, Duane A.; Giordano, Braden C.; Collins, Greg E.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
[Lubrano, Adam L.] Nova Res Inc, Alexandria, VA 22308 USA.
RP Field, CR (reprint author), USN, Res Lab, Div Chem, Washington, DC 20375 USA.
EM christopher.field@nrl.navy.mil
FU Department of Homeland Security Science and Technology Directorate
FX Financial support for this work was provided by the Department of
Homeland Security Science and Technology Directorate.
NR 18
TC 6
Z9 6
U1 2
U2 24
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0021-9673
J9 J CHROMATOGR A
JI J. Chromatogr. A
PD MAR 22
PY 2013
VL 1282
BP 178
EP 182
DI 10.1016/j.chroma.2013.01.051
PG 5
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 102GD
UT WOS:000315832000020
PM 23415141
ER
PT J
AU Chou, CY
Ita, EE
Soo, C
AF Chou, Ching-Yi
Ita, Eyo E.
Soo, Chopin
TI Affine group representation formalism for four-dimensional, Lorentzian,
quantum gravity
SO CLASSICAL AND QUANTUM GRAVITY
LA English
DT Article
ID WAVE-FUNCTION; QUANTIZATION; UNIVERSE
AB Within the context of the Ashtekar variables, the Hamiltonian constraint of four-dimensional pure general relativity with cosmological constant, Lambda, is re-expressed as an affine algebra with the commutator of the imaginary part of the Chern-Simons functional, Q, and the positive-definite volume element. This demonstrates that the affine algebra quantization program of Klauder can indeed be applicable to the full Lorentzian signature theory of quantum gravity with non-vanishing cosmological constant, and it facilitates the construction of solutions to all of the constraints. Unitary, irreducible representations of the affine group exhibit a natural Hilbert space structure, and coherent states and other physical states can be generated from a fiducial state. It is also intriguing that formulation of the Hamiltonian constraint or the Wheeler-DeWitt equation as an affine algebra requires a non-vanishing cosmological constant, and a fundamental uncertainty relation of the form Delta V/< V >Delta Q >= 2 pi Lambda L-Planck(2) (wherein V is the total volume) may apply to all physical states of quantum gravity.
C1 [Chou, Ching-Yi; Soo, Chopin] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan.
[Ita, Eyo E.] USN Acad, Dept Phys, Annapolis, MD 21402 USA.
RP Chou, CY (reprint author), Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan.
EM l2897107@mail.ncku.edu.tw; ita@usna.edu; cpsoo@mail.ncku.edu.tw
FU Office of Naval Research [N-000-1412-WX-30191]; National Science Council
of Taiwan [NSC 101-2112-M-006 -007 -MY3]; National Center for
Theoretical Sciences, Taiwan
FX This work has been supported in part by the Office of Naval Research
under grant no. N-000-1412-WX-30191, the National Science Council of
Taiwan under grant no. NSC 101-2112-M-006 -007 -MY3, and the National
Center for Theoretical Sciences, Taiwan.
NR 16
TC 1
Z9 1
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0264-9381
J9 CLASSICAL QUANT GRAV
JI Class. Quantum Gravity
PD MAR 21
PY 2013
VL 30
IS 6
AR 065013
DI 10.1088/0264-9381/30/6/065013
PG 15
WC Astronomy & Astrophysics; Physics, Multidisciplinary; Physics, Particles
& Fields
SC Astronomy & Astrophysics; Physics
GA 100DN
UT WOS:000315676100013
ER
PT J
AU Dorsey, WM
Zaghloul, AI
AF Dorsey, William Mark
Zaghloul, Amir I.
TI Dual-band, dual-circularly polarised antenna element
SO IET MICROWAVES ANTENNAS & PROPAGATION
LA English
DT Article
ID RECONFIGURABLE MICROSTRIP ANTENNA; DIVERSITY
AB A dual-band element that operates with dual-circular polarisation in two separate industrial, scientific and medical bands is presented. The design that is based on concentric square slot/shorted-ring configuration is realisable in cost-effective printed circuit board technology making it attractive for low-cost personal communications devices. The antenna element provides a flexible topology that allows for convenient, independent control of the polarisation and impedance bandwidth of two distinct frequency bands with no fundamental limitation on the ratio between the high-and low-band frequency ranges. The topology of this element is presented, and the antenna concept is validated via simulated and measured results.
C1 [Dorsey, William Mark] USN, Res Lab, Div Radar, Washington, DC 20375 USA.
[Dorsey, William Mark; Zaghloul, Amir I.] Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Falls Church, VA 22043 USA.
[Zaghloul, Amir I.] USA, Res Lab ARL, Adelphi, MD 20783 USA.
RP Dorsey, WM (reprint author), USN, Res Lab, Div Radar, Washington, DC 20375 USA.
EM wmdorsey@vt.edu
NR 18
TC 6
Z9 6
U1 2
U2 16
PU INST ENGINEERING TECHNOLOGY-IET
PI HERTFORD
PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD SG1 2AY, ENGLAND
SN 1751-8725
EI 1751-8733
J9 IET MICROW ANTENNA P
JI IET Microw. Antennas Propag.
PD MAR 19
PY 2013
VL 7
IS 4
BP 283
EP 290
DI 10.1049/iet-map.2012.0625
PG 8
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 181YH
UT WOS:000321706200009
ER
PT J
AU Schaibley, JR
Burgers, AP
McCracken, GA
Steel, DG
Bracker, AS
Gammon, D
Sham, LJ
AF Schaibley, J. R.
Burgers, A. P.
McCracken, G. A.
Steel, D. G.
Bracker, A. S.
Gammon, D.
Sham, L. J.
TI Direct detection of time-resolved Rabi oscillations in a single quantum
dot via resonance fluorescence
SO PHYSICAL REVIEW B
LA English
DT Article
ID SPECTROSCOPY; ENTANGLEMENT; DISTANCE
AB Optical Rabi oscillations are coherent population oscillations of a two-level system coupled by an electric dipole transition when driven by a strong nearly resonant optical field. In quantum dot structures, these measurements have typically been performed as a function of the total pulse area f Omega(0)(t)dt where the pulse area varies as a function of Rabi frequency. Here, we report direct detection of the time-resolved coherent transient response of the resonance fluorescence to measure the time evolution of the optical Rabi oscillations in a single charged InAs quantum dot. We extract a decoherence rate consistent with the limit from the excited state lifetime. DOI: 10.1103/PhysRevB.87.115311
C1 [Schaibley, J. R.; Burgers, A. P.; McCracken, G. A.; Steel, D. G.] Univ Michigan, Harrison M Randall Lab Phys, Ann Arbor, MI 48109 USA.
[Bracker, A. S.; Gammon, D.] USN, Res Lab, Washington, DC 20375 USA.
[Sham, L. J.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA.
RP Schaibley, JR (reprint author), Univ Michigan, Harrison M Randall Lab Phys, Ann Arbor, MI 48109 USA.
EM dst@umich.edu
OI Sham, Lu/0000-0001-5718-2077
FU NSF [PHY0804114, PHY1104446]; AFOSR [FA9550-09-1-0457]; DARPA
[FA9550-10-1-0534, FA8750-12-2-0333]; ARO [W911NF-08-1-0487]; MURI
[W911NF-09-1-0406]
FX The authors would like to acknowledge useful discussion with P. Berman,
L. Webster, B. Sun, C. Chow, V. Lal, and K. Truex. This research is
supported by NSF PHY0804114 and PHY1104446, AFOSR FA9550-09-1-0457,
DARPA FA9550-10-1-0534 and FA8750-12-2-0333, ARO W911NF-08-1-0487 and
MURI W911NF-09-1-0406.
NR 29
TC 11
Z9 11
U1 3
U2 38
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD MAR 19
PY 2013
VL 87
IS 11
AR 115311
DI 10.1103/PhysRevB.87.115311
PG 5
WC Physics, Condensed Matter
SC Physics
GA 109QM
UT WOS:000316383200001
ER
PT J
AU Bozorg-Grayeli, E
Sood, A
Asheghi, M
Gambin, V
Sandhu, R
Feygelson, TI
Pate, BB
Hobart, K
Goodson, KE
AF Bozorg-Grayeli, Elah
Sood, Aditya
Asheghi, Mehdi
Gambin, Vincent
Sandhu, Rajinder
Feygelson, Tatyana I.
Pate, Bradford B.
Hobart, Karl
Goodson, Kenneth E.
TI Thermal conduction inhomogeneity of nanocrystalline diamond films by
dual-side thermoreflectance
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID HIGH-TEMPERATURES; SILICON; GROWTH; CVD; BOUNDARIES; SUBSTRATE; PLASMA
AB Thin diamond films of thickness near 1 mu m can have highly nonuniform thermal conductivities owing to spatially varying disorder associated with nucleation and grain coalescence. Here, we examine the nonuniformity for nanocrystalline chemical vapor deposited diamond films of thickness 0.5, 1.0, and 5.6 mu m using picosecond thermoreflectance from both the top and bottom diamond surfaces, enabled by etching a window in the silicon substrate. The extracted local thermal conductivities vary from less than 100 W m(-1) K-1 to more than 1300 W m(-1) K-1 and suggest that the most defective material is confined to within 1 mu m of the growth surface. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4796168]
C1 [Bozorg-Grayeli, Elah; Sood, Aditya; Asheghi, Mehdi; Goodson, Kenneth E.] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA.
[Sood, Aditya] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.
[Gambin, Vincent; Sandhu, Rajinder] Northrop Grumman Corp, San Diego, CA 92127 USA.
[Feygelson, Tatyana I.] Sci Applicat Int Corp, Mclean, VA 22102 USA.
[Pate, Bradford B.; Hobart, Karl] USN, Res Lab, Washington, DC 20375 USA.
RP Bozorg-Grayeli, E (reprint author), Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA.
EM ebozorgg@stanford.edu
RI Goodson, Kenneth/C-3545-2011; Pate, Bradford/B-4752-2010
OI Pate, Bradford/0000-0002-3288-2947
FU Northrop Grumman [7600011363]; DARPA [FE 01 19 12, RFMD-12-C-0002];
AFOSR [FA9550-12-1-0195]
FX This research was made with private and Government support and was
awarded by Northrop Grumman (agreement # 7600011363, titled: Thermal
Reflectance Material Characterization Supporting the NEXT Program Phase
I&II), DARPA (agreement # FE 01 19 12, titled: GaN-on-Diamond Thermal
Measurements and agreement # RFMD-12-C-0002, titled: Thermal
Characterization of GaN-on-Diamond Materials and PA Devices), and the
AFOSR (agreement # FA9550-12-1-0195, titled: Multicarrier and
Low-Dimensional Thermal Conduction at Interfaces for High Power
Electronic Devices).
NR 32
TC 13
Z9 13
U1 1
U2 37
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 18
PY 2013
VL 102
IS 11
AR 111907
DI 10.1063/1.4796168
PG 4
WC Physics, Applied
SC Physics
GA 111TX
UT WOS:000316544900032
ER
PT J
AU Beattie, JC
Elsberry, RL
AF Beattie, Jodi C.
Elsberry, Russell L.
TI Horizontal structure of monsoon depressions in the western North Pacific
at formation time
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE monsoon depression
ID TROPICAL CYCLONE FORMATION; INTERANNUAL VARIATION; GYRE
AB Tropical cyclones that form from monsoon depressions in the western North Pacific have a larger outer wind structure, and those that form from monsoon gyres tend to be smaller than average. Quantitative values of the horizontal wind structure of monsoon depressions are analyzed from high-resolution European Centre for Medium-Range Weather Forecasts analyses and satellite imagery during 2009. Rather than a circular shape with a diameter of about 1000 km, 80% of the 44 monsoon depressions were elliptical in shape with average diameters of about 812 km north-south and 1098 km east-west. The latitudinal-to-longitudinal ellipticity factor of 0.69 +/- 0.14 emphasizes the noncircular structure of these cases, which is important for the weather distribution and likely also for potential tropical cyclone formations. Seventeen tropical cyclones during 2009 formed from monsoon depressions and none from monsoon gyres, which contradicts earlier studies that about 70% form from monsoon gyres.
C1 [Beattie, Jodi C.; Elsberry, Russell L.] USN, Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
RP Beattie, JC (reprint author), USN, Postgrad Sch, Dept Meteorol, 589 Dyer Rd, Monterey, CA 93943 USA.
EM jcbeatti@nps.edu
FU Office of Naval Research Marine Meteorology section; National Science
Foundation
FX Support for R.L. Elsberry was provided by the Office of Naval Research
Marine Meteorology section and the National Science Foundation. Karl
Pfeiffer provided the hardware and assisted in code development for data
analysis. The authors gratefully acknowledge the ECMWF for the provision
of the YOTC dataset (http://data-portal.ecmwf.int/data/d/yotc_od/), the
NASA Giovanni TRMM Online Visualization and Analysis System (TOVAS;
http://gdata1.sci.gsfc.nasa.gov/daacbin/G3/gui.cgi?instance_id=TRMM_3-Ho
urly), and the NOAA/NESDIS Center for Satellite Applications and
Research for the provision of the QuikSCAT website
(http://manati.orbit.nesdis.noaa.gov/datasets/QuikSCATData.php) used in
this study.
NR 12
TC 3
Z9 3
U1 0
U2 4
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD MAR 16
PY 2013
VL 40
IS 5
BP 983
EP 987
DI 10.1002/grl.50198
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 134VG
UT WOS:000318242900034
ER
PT J
AU Mokili, JL
Dutilh, BE
Lim, YW
Schneider, BS
Taylor, T
Haynes, MR
Metzgar, D
Myers, CA
Blair, PJ
Nosrat, B
Wolfe, ND
Rohwer, F
AF Mokili, John L.
Dutilh, Bas E.
Lim, Yan Wei
Schneider, Bradley S.
Taylor, Travis
Haynes, Matthew R.
Metzgar, David
Myers, Christopher A.
Blair, Patrick J.
Nosrat, Bahador
Wolfe, Nathan D.
Rohwer, Forest
TI Identification of a Novel Human Papillomavirus by Metagenomic Analysis
of Samples from Patients with Febrile Respiratory Illness
SO PLOS ONE
LA English
DT Article
ID VIRAL METAGENOMICS; GENE-PRODUCT; DNA; AMPLIFICATION; DATASETS; PLASMID;
REGIONS
AB As part of a virus discovery investigation using a metagenomic approach, a highly divergent novel Human papillomavirus type was identified in pooled convenience nasal/oropharyngeal swab samples collected from patients with febrile respiratory illness. Phylogenetic analysis of the whole genome and the L1 gene reveals that the new HPV identified in this study clusters with previously described gamma papillomaviruses, sharing only 61.1% (whole genome) and 63.1% (L1) sequence identity with its closest relative in the Papillomavirus episteme (PAVE) database. This new virus was named HPV_SD2 pending official classification. The complete genome of HPV-SD2 is 7,299 bp long (36.3% G/C) and contains 7 open reading frames (L2, L1, E6, E7, E1, E2 and E4) and a non-coding long control region (LCR) between L1 and E6. The metagenomic procedures, coupled with the bioinformatic methods described herein are well suited to detect small circular genomes such as those of human papillomaviruses.
C1 [Mokili, John L.; Lim, Yan Wei; Haynes, Matthew R.; Nosrat, Bahador; Rohwer, Forest] San Diego State Univ, Dept Biol, San Diego, CA 92182 USA.
[Mokili, John L.; Lim, Yan Wei; Schneider, Bradley S.; Taylor, Travis; Wolfe, Nathan D.] Metabiota, San Francisco, CA USA.
[Dutilh, Bas E.] Radboud Univ Nijmegen, Med Ctr, Nijmegen Ctr Mol Life Sci, Ctr Mol & Biomol Informat, NL-6525 ED Nijmegen, Netherlands.
[Metzgar, David; Myers, Christopher A.; Blair, Patrick J.] USN, Naval Hlth Res Ctr, San Diego, CA 92152 USA.
[Rohwer, Forest] San Diego State Univ, Ctr Microbial Sci, San Diego, CA 92182 USA.
RP Mokili, JL (reprint author), San Diego State Univ, Dept Biol, San Diego, CA 92182 USA.
EM jmokili@gmail.com
RI Valle, Ruben/A-7512-2013; Dutilh, Bas/B-9719-2011;
OI Dutilh, Bas/0000-0003-2329-7890; Schneider, Bradley
S/0000-0001-7642-0018
FU Dutch Science Foundation (NWO) [016.111.075]; U.S. Department of Defense
Global Emerging Infections, Surveillance and Response Systems (DoD
GEIS); Defense Threat Reduction Agency (DTRA); Cooperative Biological
Engagement Program (CBEP); Google.org; Skoll Foundation; U.S. Agency for
International Development (USAID) Emerging Pandemic Threats Program,
PREDICT project [GHN-A-OO-09-00010-00]
FX BED is supported by the Dutch Science Foundation (NWO) Veni grant
(016.111.075). Global Viral Forecasting (JLM, BSS and NDW) was
graciously supported by the U.S. Department of Defense Global Emerging
Infections, Surveillance and Response Systems (DoD GEIS) and the Defense
Threat Reduction Agency (DTRA), Cooperative Biological Engagement
Program (CBEP), Google.org, the Skoll Foundation, and the U.S. Agency
for International Development (USAID) Emerging Pandemic Threats Program,
PREDICT project, under the terms of Cooperative Agreement Number
GHN-A-OO-09-00010-00. The Surveillance conducted by Naval Health
Research Center (NHRC) was supported by the Global Emerging Infections
System division of the Armed Forces Health Surveillance Center. The
views expressed in this work are those of the authors and do not reflect
the official policy of the Department of the Navy, Department of
Defense, or the US Government. Approved for public releases;
distribution is unlimited. This research has been conducted in
compliance with all applicable federal regulations governing the
protection of human subjects in research. The funders had no role in
study design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 32
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U1 0
U2 14
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD MAR 15
PY 2013
VL 8
IS 3
AR e58404
DI 10.1371/journal.pone.0058404
PG 12
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 109ZC
UT WOS:000316409800015
PM 23554892
ER
PT J
AU Gupta, ML
Sydlik, SA
Schnorr, JM
Woo, DJ
Osswald, S
Swager, TM
Raghavan, D
AF Gupta, Murari L.
Sydlik, Stefanie A.
Schnorr, Jan M.
Woo, Dong Jin
Osswald, Sebastian
Swager, Timothy M.
Raghavan, Dharmaraj
TI The effect of mixing methods on the dispersion of carbon nanotubes
during the solvent-free processing of multiwalled carbon nanotube/epoxy
composites
SO JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
LA English
DT Article
DE composites; fillers; fracture; mechanical properties; multiwalled carbon
nanotubes; nanotechnology
ID EPOXY POLYMER COMPOSITES; MECHANICAL-PROPERTIES;
AMINO-FUNCTIONALIZATION; SURFACE MODIFICATION; RAMAN-SPECTROSCOPY;
NANOCOMPOSITES; REINFORCEMENT; NANOFILLERS; INTERFACE; TOUGHNESS
AB Several solvent-free processing methods to disperse multiwalled carbon nanotubes (MWCNTs) in bisphenol F-based epoxy resin were investigated, including the use of a microfluidizer (MF), planetary shear mixer (PSM), ultrasonication (US) and combinations. The processed mixture was cured with diethyl toluene diamine. Three complimentary techniques were used to characterize the dispersion of the MWCNTs in cured composite samples: optical microscopy, micro Raman spectroscopy, and scanning electron microscopy (SEM). For sample MF + PSM, optical micrographs and Raman images showed reduced agglomeration and a homogeneous distribution of MWCNTs in the epoxy matrix. SEM analysis of fractured specimen after tensile testing revealed breakage of nanotubes along the fracture surface of the composite. A comparison of the MWCNT dispersion in the epoxy samples processed using different methods showed that a combination of MF and PSM processing yields a more homogeneous sample than the PSM or US + PSM processed samples. Mechanical testing of the composites showed about 15% improvement in the tensile strength of samples processed by the MF + PSM method over other methods. Thermogravimetric analysis (TGA) results showed a small decrease in the onset degradation temperature for poorly dispersed samples produced by PSM compared with the well-mixed samples (MF + PSM). These results strongly suggest that the MF + PSM processing method yield better-dispersed and stronger MWCNT/epoxy composites. (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys, 2013
C1 [Gupta, Murari L.; Raghavan, Dharmaraj] Howard Univ, Dept Chem, Washington, DC 20059 USA.
[Sydlik, Stefanie A.; Schnorr, Jan M.; Swager, Timothy M.] MIT, Dept Chem, Cambridge, MA 02139 USA.
[Sydlik, Stefanie A.; Schnorr, Jan M.; Swager, Timothy M.] MIT, Inst Soldier Nanotechnol, Cambridge, MA 02139 USA.
[Woo, Dong Jin; Osswald, Sebastian] USN, Dept Phys, Grad Sch Engn & Appl Sci, Postgrad Sch, Monterey, CA 93943 USA.
RP Raghavan, D (reprint author), Howard Univ, Dept Chem, Washington, DC 20059 USA.
EM draghavan@howard.edu
RI Swager, Timothy/H-7459-2012; Sydlik, Stefanie/B-6233-2017
OI Swager, Timothy/0000-0002-3577-0510; Sydlik,
Stefanie/0000-0001-9375-2356
FU US Army Research Office through Institute for Soldier Nanotechnologies
at Massachusetts Institute of Technology, Cambridge, MA; Research
Initiative Program of the Naval Postgraduate School, Monterey, CA; NSF
FX The authors gratefully acknowledge financial support from US Army
Research Office grant through Institute for Soldier Nanotechnologies at
Massachusetts Institute of Technology, Cambridge, MA, and from the
Research Initiative Program of the Naval Postgraduate School, Monterey,
CA. Ian Gunniss at Microfluidics Inc, Newton, MA is acknowledged for
processing the samples by Microfluidizer. They are grateful to Thinky
Corporation, USA in loaning the equipment for processing the samples.
Authors also appreciate assistance of James Griffin in collecting FESEM
images at NSF sponsored Nanomaterials Center Howard University. Quentin
Roby and Dajanae Cooper (HU undergraduates) are acknowledged for their
assistance with sample preparation and sample characterization. Finally,
the authors would like to acknowledge the assistance from Maraizu
Ukaegbu and Dr. Charles Hosten of Howard University in showing the
viability of Raman spectroscopy in mapping MWCNT dispersion in epoxy
nanocomposite.
NR 44
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Z9 17
U1 3
U2 101
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0887-6266
EI 1099-0488
J9 J POLYM SCI POL PHYS
JI J. Polym. Sci. Pt. B-Polym. Phys.
PD MAR 15
PY 2013
VL 51
IS 6
BP 410
EP 420
DI 10.1002/polb.23225
PG 11
WC Polymer Science
SC Polymer Science
GA 091LK
UT WOS:000315050800004
ER
PT J
AU Zhang, Q
Li, G
Rhodes, D
Kiswandhi, A
Besara, T
Zeng, B
Sun, J
Siegrist, T
Johannes, MD
Balicas, L
AF Zhang, Q.
Li, G.
Rhodes, D.
Kiswandhi, A.
Besara, T.
Zeng, B.
Sun, J.
Siegrist, T.
Johannes, M. D.
Balicas, L.
TI Superconductivity with extremely large upper critical fields in
Nb2Pd0.81S5
SO SCIENTIFIC REPORTS
LA English
DT Article
ID METAL; TRANSITION; INSULATOR; SYMMETRY; SR2RUO4
AB Here, we report the discovery of superconductivity in a new transition metal-chalcogenide compound, i.e. Nb2Pd0.81S5, with a transition temperature T-c congruent to 6.6 K. Despite its relatively low T-c, it displays remarkably high and anisotropic superconducting upper critical fields, e.g. mu H-0(c2) (T -> 0 K). 37 T for fields applied along the crystallographic b-axis. For a field applied perpendicularly to the b-axis, mu H-0(c2) shows a linear dependence in temperature which coupled to a temperature-dependent anisotropy of the upper critical fields, suggests that Nb2Pd0.81S5 is a multi-band superconductor. This is consistent with band structure calculations which reveal nearly cylindrical and quasi-one-dimensional Fermi surface sheets having hole and electron character, respectively. The static spin susceptibility as calculated through the random phase approximation, reveals strong peaks suggesting proximity to a magnetic state and therefore the possibility of unconventional superconductivity.
C1 [Zhang, Q.; Li, G.; Rhodes, D.; Kiswandhi, A.; Besara, T.; Zeng, B.; Sun, J.; Siegrist, T.; Balicas, L.] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
[Kiswandhi, A.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
[Siegrist, T.] Florida State Univ, Dept Chem & Biomed Engn, Tallahassee, FL 32310 USA.
[Johannes, M. D.] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Balicas, L (reprint author), Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
EM balicas@magnet.fsu.edu
RI Zeng, Bin/O-3370-2013; Rhodes, Daniel/H-3423-2013; Li, Gang/E-3033-2015;
OI Zeng, Bin/0000-0002-0090-4371; Besara, Tiglet/0000-0002-2143-2254
FU DOE, Basic Energy Sciences [DE-SC0002613]; NSF [NSF-DMR-0654118]; State
of Florida; DOE
FX LB acknowledges financial support from DOE, Basic Energy Sciences,
contract No DE-SC0002613. The NHMFL is supported by NSF through
NSF-DMR-0654118, the State of Florida and DOE.
NR 32
TC 37
Z9 37
U1 1
U2 32
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2045-2322
J9 SCI REP-UK
JI Sci Rep
PD MAR 13
PY 2013
VL 3
AR 1446
DI 10.1038/srep01446
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 104HB
UT WOS:000315981600004
PM 23486091
ER
PT J
AU Kim, Y
Kathaperumal, M
Smith, OL
Pan, MJ
Cai, Y
Sandhage, KH
Perry, JW
AF Kim, Yunsang
Kathaperumal, Mohanalingam
Smith, O'Neil L.
Pan, Ming-Jen
Cai, Ye
Sandhage, Kenneth H.
Perry, Joseph W.
TI High-Energy-Density Sol-Gel Thin Film Based on Neat
2-Cyanoethyltrimethoxysilane
SO ACS APPLIED MATERIALS & INTERFACES
LA English
DT Article
DE sol-gel dielectric; high k dielectric; high energy density materials;
capacitors; electric breakdown strength; pulsed power applications
ID ELECTROCHEMICAL CAPACITORS; POLYMER NANOCOMPOSITES;
DIELECTRIC-BREAKDOWN; HIGH-PERMITTIVITY; STORAGE; STRENGTH
AB Hybrid organic-inorganic sol-gel dielectric thin films from a neat 2-cyanoethyltrimethoxysilane (CNETMS) precursor have been fabricated and their permittivity, dielectric strength, and energy density characterized. CNETMS sol-gel films possess compact, polar cyanoethyl groups and exhibit a relative permittivity of 20 at 1 kHz and breakdown strengths ranging from 650 V/mu m to 250 V/mu m for film thicknesses of 1.3 to 3.5 mu m. Capacitors based on CNETMS films exhibit extractable energy densities of 7 J/cm(3) at 300 V/mu m, as determined by charge-discharge and polarization-electric field measurements, as well as an energy extraction efficiency of similar to 91%. The large extractable energy resulting from the linear dielectric polarization behavior suggests that CNETMS films are promising sol-gel materials for pulsed power applications.
C1 [Kim, Yunsang; Kathaperumal, Mohanalingam; Smith, O'Neil L.; Perry, Joseph W.] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA.
[Kim, Yunsang; Kathaperumal, Mohanalingam; Smith, O'Neil L.; Cai, Ye; Sandhage, Kenneth H.; Perry, Joseph W.] Georgia Inst Technol, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA.
[Kim, Yunsang; Cai, Ye; Sandhage, Kenneth H.] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA.
[Pan, Ming-Jen] USN, Res Lab, Washington, DC 20375 USA.
RP Perry, JW (reprint author), Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA.
EM joe.perry@gatech.edu
FU Office of Naval Research [N000141110462]; Air Force Office of Scientific
Research [FA9550-10-1-0555, FA9550-09-1-0162]; Center for Organic
Photonics and Electronics
FX The work of Y.K., M.K., and O.L.S. was supported by the Office of Naval
Research (Grant N000141110462, Capacitor Program). The work of M.K.,
K.H.S., and J.W.P. was supported by the Air Force Office of Scientific
Research (Grant FA9550-10-1-0555, BIO-PAINTS MURI). The work of Y.C. was
supported by the Air Force Office of Scientific Research (Grant
FA9550-09-1-0162, BIONIC Air Force Center of Excellence). The authors
thank Prof. Kippelen for use of a profilometer and dielectric
spectroscopy instruments. O.L.S. and Y.K. thank the Center for Organic
Photonics and Electronics for a COPE Fellowship.
NR 24
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Z9 6
U1 2
U2 42
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1944-8244
J9 ACS APPL MATER INTER
JI ACS Appl. Mater. Interfaces
PD MAR 13
PY 2013
VL 5
IS 5
BP 1544
EP 1547
DI 10.1021/am303162u
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 108PO
UT WOS:000316308100004
PM 23427818
ER
PT J
AU Greilich, A
Badescu, SC
Kim, D
Bracker, AS
Gammon, D
AF Greilich, A.
Badescu, S. C.
Kim, D.
Bracker, A. S.
Gammon, D.
TI Optical Measurement and Modeling of Interactions between Two Hole Spins
or Two Electron Spins in Coupled InAs Quantum Dots
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
AB Two electron spins in quantum dots coupled through coherent tunneling are generally acknowledged to approximately obey Heisenberg isotropic exchange. This has not been established for two holes. Here we measure the spectra of two holes and of two electrons in two vertically stacked self-assembled InAs quantum dots using optical spectroscopy as a function of electric and magnetic fields. We find that the exchange is approximately isotropic for both systems, but that significant asymmetric contributions, arising from spin-orbit and Zeeman interactions combined with spatial asymmetries, are required to explain large anticrossings and fine-structure energy splittings in the spectra. Asymmetric contributions to the isotropic Hamiltonian for electrons are of the order of a few percent while those for holes are an order of magnitude larger. DOI: 10.1103/PhysRevLett.110.117402
C1 [Greilich, A.; Badescu, S. C.; Kim, D.; Bracker, A. S.; Gammon, D.] USN, Res Lab, Washington, DC 20375 USA.
[Greilich, A.] Tech Univ Dortmund, D-44221 Dortmund, Germany.
[Badescu, S. C.] USAF, Res Lab, Dayton, OH 45433 USA.
[Kim, D.] Harvard Univ, Cambridge, MA 02138 USA.
RP Greilich, A (reprint author), USN, Res Lab, Washington, DC 20375 USA.
RI Greilich, Alex/A-8927-2009
NR 32
TC 10
Z9 10
U1 0
U2 33
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAR 12
PY 2013
VL 110
IS 11
AR 117402
DI 10.1103/PhysRevLett.110.117402
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 106VJ
UT WOS:000316172500028
PM 25166576
ER
PT J
AU Ivanov, OA
Lobaev, MA
Vikharev, AL
Gorbachev, AM
Isaev, VA
Hirshfield, JL
Gold, SH
Kinkead, AK
AF Ivanov, O. A.
Lobaev, M. A.
Vikharev, A. L.
Gorbachev, A. M.
Isaev, V. A.
Hirshfield, J. L.
Gold, S. H.
Kinkead, A. K.
TI Active Microwave Pulse Compressor Using an Electron-Beam Triggered
Switch
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
AB A high-power active microwave pulse compressor is described that operates by modulating the quality factor of an energy storage cavity by means of mode conversion controlled by a triggered electron-beam discharge across a switch cavity. This Letter describes the principle of operation, the design of the switch cavity, the configuration used for the tests, and the experimental results. The pulse compressor produced output pulses with 140-165 MW peak power, record peak power gains of 16:1-20:1, and FWHM pulse duration of 16-20 ns at a frequency of 11.43 GHz. DOI: 10.1103/PhysRevLett.110.115002
C1 [Ivanov, O. A.; Lobaev, M. A.; Vikharev, A. L.; Gorbachev, A. M.; Isaev, V. A.] Inst Appl Phys RAS, Nizhny 603600, Novgorod, Russia.
[Ivanov, O. A.; Vikharev, A. L.; Gorbachev, A. M.; Hirshfield, J. L.] Omega P Inc, New Haven, CT 06510 USA.
[Hirshfield, J. L.] Yale Univ, Dept Phys, New Haven, CT 06511 USA.
[Gold, S. H.] USN, Div Plasma Phys, Res Lab, Washington, DC 20375 USA.
[Kinkead, A. K.] Icarus Res, Bethesda, MD 20814 USA.
RP Ivanov, OA (reprint author), Inst Appl Phys RAS, Nizhny 603600, Novgorod, Russia.
FU U.S. Department of Energy, Office of High Energy Physics [DE-FG02-08ER
85206, DE-AI02-01ER41170]; Russian Foundation for Basic Research
[10-08-00260, 12-08-00990, 12-08-31271]
FX This work was supported by the U.S. Department of Energy, Office of High
Energy Physics, Grant No. DE-FG02-08ER 85206 and Interagency Agreement
No. DE-AI02-01ER41170, and by the Russian Foundation for Basic Research,
Grants No. 10-08-00260, No. 12-08-00990, and No. 12-08-31271.
NR 11
TC 6
Z9 6
U1 1
U2 15
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAR 12
PY 2013
VL 110
IS 11
AR 115002
DI 10.1103/PhysRevLett.110.115002
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 106VJ
UT WOS:000316172500014
PM 25166547
ER
PT J
AU Anuniwat, N
Cui, YS
Wolf, SA
Lu, JW
Weaver, BD
AF Anuniwat, Nattawut
Cui, Yishen
Wolf, Stuart A.
Lu, Jiwei
Weaver, Bradley D.
TI Recovery of the chemical ordering in L1(0) MnAl epitaxial thin films
irradiated by 2 MeV protons
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID ION-IRRADIATION; PHASE; GAAS
AB Epitaxial MnAl films with a high chemical ordering were synthesized and characterized during a series of irradiations by 2 MeV protons (H+). The chemical ordering was first reduced to a minimum at a total fluence (TF) of 1 x 10(15) H+/cm(2), and consequently was recovered at the final total fluence of 2 x 10(15) H+/cm(2). We attributed the recovery of chemical ordering to thermal effects and the enhanced diffusion caused by the high energy protons. In addition, the damages by the protons have little effect on the magnetic scattering processing in MnAl characterized by the anomalous Hall effect. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4794804]
C1 [Anuniwat, Nattawut; Cui, Yishen; Wolf, Stuart A.] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA.
[Wolf, Stuart A.; Lu, Jiwei] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA.
[Weaver, Bradley D.] USN, Res Lab, Washington, DC 20375 USA.
RP Lu, JW (reprint author), Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA.
EM jl5tk@virginia.edu
FU DTRA [HDTRA 1-11-1-0024]; DARPA [HR0011-09-C-0023]; NSF [948138]
FX J.W.L., N.A., and B. D. W. are grateful to the financial support from
DTRA (Award No.: HDTRA 1-11-1-0024). S. A. W. and Y.C. acknowledge the
support by DARPA (Award No.: HR0011-09-C-0023) and NSF (Award No.:
948138).
NR 20
TC 3
Z9 3
U1 1
U2 19
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 11
PY 2013
VL 102
IS 10
AR 102406
DI 10.1063/1.4794804
PG 4
WC Physics, Applied
SC Physics
GA 111EG
UT WOS:000316501200045
ER
PT J
AU Matis, BR
Bulat, FA
Friedman, AL
Houston, BH
Baldwin, JW
AF Matis, Bernard R.
Bulat, Felipe A.
Friedman, Adam L.
Houston, Brian H.
Baldwin, Jeffrey W.
TI Chemically functionalized graphene for bipolar electronics
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID BAND-GAP; HYDROGENATION; CARBON
AB We report using chemical functionalization to control local carrier type and density in graphene. Low frequency transport measurements demonstrate independent carrier types and densities within adjacent graphene and hydrogenated graphene regions. Measurements of the Hall coefficient confirm that the charge carriers change sign about the charge neutrality point, that the graphene carrier density retains its linear dependence on a back gate voltage, and that the hydrogenated graphene carrier density deviates from a linear relationship. Transport measurements across the bipolar interface reveal an increasing interface resistance for higher hydrogen concentrations and a source of constant resistance for lower hydrogen concentrations. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4794990]
C1 [Matis, Bernard R.; Friedman, Adam L.; Houston, Brian H.; Baldwin, Jeffrey W.] USN, Res Lab, Washington, DC 20375 USA.
[Bulat, Felipe A.] Sotera Def Solut Inc, Crofton, MD 21114 USA.
RP Baldwin, JW (reprint author), USN, Res Lab, Code 7130, Washington, DC 20375 USA.
EM jeffrey.baldwin@nrl.navy.mil
RI Friedman, Adam/D-9610-2011
OI Friedman, Adam/0000-0003-0597-5432
FU National Research Council; Office of Naval Research
FX The authors gratefully acknowledge the members of the technical staff of
the Institute for Nanoscience at NRL, David Zapotok and Dean St. Amand.
The authors would like to thank Leslie G. Cates for her assistance in
developing the artwork. Bernard Matis performed research courtesy of a
National Research Council postdoctoral fellowship. This work was
supported by the Office of Naval Research.
NR 19
TC 4
Z9 4
U1 0
U2 23
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 11
PY 2013
VL 102
IS 10
AR 103114
DI 10.1063/1.4794990
PG 5
WC Physics, Applied
SC Physics
GA 111EG
UT WOS:000316501200077
ER
PT J
AU Little, A
Hoffman, A
Haegel, NM
AF Little, Anree
Hoffman, Abigail
Haegel, Nancy M.
TI Optical attenuation coefficient in individual ZnO nanowires
SO OPTICS EXPRESS
LA English
DT Article
ID LIGHT-EMITTING DIODE; ZINC-OXIDE; PHOTONICS; ARRAYS
AB Attenuation coefficient measurements for the propagation of bandedge luminescence are made on individual ZnO nanowires by combining the localized excitation capability of a scanning electron microscope (SEM) with near-field scanning optical microscopy (NSOM) to record the distribution and intensity of wave-guided emission. Measurements were made for individual nanostructures with triangular cross-sections ranging in diameter from 680 to 2300 nm. The effective attenuation coefficient shows an inverse dependence on nanowire diameter (d(-1)), indicating scattering losses due to non-ideal waveguiding behavior. (c) 2013 Optical Society of America
C1 [Little, Anree; Hoffman, Abigail; Haegel, Nancy M.] USN, Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
RP Little, A (reprint author), USN, Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
EM UUnmhaegel@nps.eduUU
FU National Science Foundation Grant [DMR-0804527]
FX This work was supported by National Science Foundation Grant
DMR-0804527. The ZnO nanostructures were provided by the group of Prof.
Z. L. Wang at Georgia Institute of Technology. NMH acknowledges her
status as a Senior Fulbright Fellow at Hebrew University during the
preparation of this manuscript.
NR 17
TC 2
Z9 2
U1 2
U2 39
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1094-4087
J9 OPT EXPRESS
JI Opt. Express
PD MAR 11
PY 2013
VL 21
IS 5
BP 6321
EP 6326
DI 10.1364/OE.21.006321
PG 6
WC Optics
SC Optics
GA 105WL
UT WOS:000316103300122
PM 23482201
ER
PT J
AU Porter, CK
Choi, D
Cash, B
Pimentel, M
Murray, J
May, L
Riddle, MS
AF Porter, Chad K.
Choi, Daniel
Cash, Brooks
Pimentel, Mark
Murray, Joseph
May, Larissa
Riddle, Mark S.
TI Pathogen-specific risk of chronic gastrointestinal disorders following
bacterial causes of foodborne illness
SO BMC GASTROENTEROLOGY
LA English
DT Article
ID IRRITABLE-BOWEL-SYNDROME; DIRECT MEDICAL COSTS; QUALITY-OF-LIFE;
FUNCTIONAL DYSPEPSIA; UNITED-STATES; GASTROESOPHAGEAL-REFLUX;
YERSINIA-ENTEROCOLITICA; GASTROENTERITIS; DISEASE; POPULATION
AB Background: The US CDC estimates over 2 million foodborne illnesses are annually caused by 4 major enteropathogens: non-typhoid Salmonella spp., Campylobacter spp., Shigella spp. and Yersinia enterocoltica. While data suggest a number of costly and morbid chronic sequelae associated with these infections, pathogen-specific risk estimates are lacking. We utilized a US Department of Defense medical encounter database to evaluate the risk of several gastrointestinal disorders following select foodborne infections.
Methods: We identified subjects with acute gastroenteritis between 1998 to 2009 attributed to Salmonella (nontyphoidal) spp., Shigella spp., Campylobacter spp. or Yersinia enterocolitica and matched each with up to 4 unexposed subjects. Medical history was analyzed for the duration of military service time (or a minimum of 1 year) to assess for incident chronic gastrointestinal disorders. Relative risks were calculated using modified Poisson regression while controlling for the effect of covariates.
Results: A total of 1,753 pathogen-specific gastroenteritis cases (Campylobacter: 738, Salmonella: 624, Shigella: 376, Yersinia: 17) were identified and followed for a median of 3.8 years. The incidence (per 100,000 person-years) of PI sequelae among exposed was as follows: irritable bowel syndrome (IBS), 3.0; dyspepsia, 1.8; constipation, 3.9; gastroesophageal reflux disease (GERD), 9.7. In multivariate analyses, we found pathogen-specific increased risk of IBS, dyspepsia, constipation and GERD.
Conclusions: These data confirm previous studies demonstrating risk of chronic gastrointestinal sequelae following bacterial enteric infections and highlight additional preventable burden of disease which may inform better food security policies and practices, and prompt further research into pathogenic mechanisms.
C1 [Porter, Chad K.; Riddle, Mark S.] USN, Enter Dis Dept, Med Res Ctr, Silver Spring, MD USA.
[Choi, Daniel; May, Larissa] George Washington Univ, Washington, DC USA.
[Cash, Brooks] Walter Reed Natl Mil Med Ctr, Bethesda, MD USA.
[Pimentel, Mark] Cedars Sinai Med Ctr, Los Angeles, CA 90048 USA.
[Murray, Joseph] Mayo Clin, Rochester, MN USA.
RP Porter, CK (reprint author), USN, Enter Dis Dept, Med Res Ctr, Silver Spring, MD USA.
EM chad.porter@med.navy.mil
OI murray, joseph/0000-0003-1941-9090
FU Military Infectious Disease Research Program
FX The views expressed in this article are those of the author and do not
necessarily reflect the official policy or position of the Department of
the Navy, Department of Defense, nor the U.S. Government. This is a US
Government work. There are no restrictions on its use. There were no
financial conflicts of interests among any of the authors. This study
was conducted under support of the Military Infectious Disease Research
Program.
NR 47
TC 18
Z9 20
U1 0
U2 11
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-230X
J9 BMC GASTROENTEROL
JI BMC Gastroenterol.
PD MAR 8
PY 2013
VL 13
AR 46
DI 10.1186/1471-230X-13-46
PG 7
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 107FF
UT WOS:000316199500001
PM 23510245
ER
PT J
AU Alnemrat, S
Hooper, JP
AF Alnemrat, Sufian
Hooper, Joseph P.
TI Predicting Temperature-Dependent Solid Vapor Pressures of Explosives and
Related Compounds Using a Quantum Mechanical Continuum Solvation Model
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID HEAVY LIQUID HYDROCARBONS; COSMO-RS; CHEMICAL SIGNATURES; PHASE; TNT;
SUBLIMATION; DENSITY; ENERGY; SOIL; APPROXIMATION
AB Temperature-dependent vapor pressures of solid explosives and their byproducts are calculated to an accuracy of 0.32 log units using a modified form of the conductor-like screening model for real solvents (COSMO-RS). Accurate predictions for solids within COSMO-RS require correction for the free energy of fusion as well as other effects such as van der Waals interactions. Limited experimental data on explosives is available to determine these corrections, and thus we have extended the COSMO-RS model by introducing a quantitative structure-property relationship to estimate a lumped correction factor using only information from standard quantum chemistry calculations. This modification improves the COSMO-RS estimate of ambient vapor pressure by more than 1 order of magnitude for a range of nitrogen-rich explosives and their derivatives, bringing the theoretical predictions to within typical experimental error bars for vapor pressure measurements. The estimated temperature dependence of these vapor pressures also agrees well with available experimental data, which is particularly important for estimating environmental transport and gas evolution for buried explosives or environmentally contaminated locations. This technique is then used to predict vapor pressures for a number of explosives and degradation products for which experimental data is not readily available.
C1 [Alnemrat, Sufian; Hooper, Joseph P.] USN, Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
RP Hooper, JP (reprint author), USN, Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
EM jphooper@nps.edu
RI alnemrat, sufian/J-4511-2015
OI alnemrat, sufian/0000-0002-5143-4066
FU Office of Naval Research [N00014-12-WX-20884]; National Research Council
Research Associateship Award at Naval Postgraduate School
FX This work was supported by the Office of Naval Research grant
N00014-12-WX-20884 under the Science for Addressing Asymmetric Explosive
Threats program directed by Dan Prono. The authors thank Darrel Cherf
and James Hemmer for preliminary calculations on explosive compounds.
This research was performed while one of the authors (S.A.) held a
National Research Council Research Associateship Award at Naval
Postgraduate School.
NR 81
TC 6
Z9 6
U1 2
U2 33
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD MAR 7
PY 2013
VL 117
IS 9
BP 2035
EP 2043
DI 10.1021/jp400164j
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 104GH
UT WOS:000315979400019
PM 23398143
ER
PT J
AU Raatikainen, T
Nenes, A
Seinfeld, JH
Morales, R
Moore, RH
Lathem, TL
Lance, S
Padro, LT
Lin, JJ
Cerully, KM
Bougiatioti, A
Cozic, J
Ruehl, CR
Chuang, PY
Anderson, BE
Flagan, RC
Jonsson, H
Mihalopoulos, N
Smith, JN
AF Raatikainen, Tomi
Nenes, Athanasios
Seinfeld, John H.
Morales, Ricardo
Moore, Richard H.
Lathem, Terry L.
Lance, Sara
Padro, Luz T.
Lin, Jack J.
Cerully, Kate M.
Bougiatioti, Aikaterini
Cozic, Julie
Ruehl, Christopher R.
Chuang, Patrick Y.
Anderson, Bruce E.
Flagan, Richard C.
Jonsson, Haflidi
Mihalopoulos, Nikos
Smith, James N.
TI Worldwide data sets constrain the water vapor uptake coefficient in
cloud formation
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE global climate; hydrological cycle; precipitation
ID DROPLET GROWTH-KINETICS; SIZE-RESOLVED CCN; ACTIVATION KINETICS; CLIMATE
MODELS; AEROSOL; HYGROSCOPICITY; CONDENSATION; GASES; ENVIRONMENT;
EMISSIONS
AB Cloud droplet formation depends on the condensation of water vapor on ambient aerosols, the rate of which is strongly affected by the kinetics of water uptake as expressed by the condensation (or mass accommodation) coefficient, alpha(c). Estimates of alpha(c) for droplet growth from activation of ambient particles vary considerably and represent a critical source of uncertainty in estimates of global cloud droplet distributions and the aerosol indirect forcing of climate. We present an analysis of 10 globally relevant data sets of cloud condensation nuclei to constrain the value of alpha(c) for ambient aerosol. We find that rapid activation kinetics (alpha(c) > 0.1) is uniformly prevalent. This finding resolves a long-standing issue in cloud physics, as the uncertainty in water vapor accommodation on droplets is considerably less than previously thought.
C1 [Raatikainen, Tomi; Nenes, Athanasios; Morales, Ricardo; Moore, Richard H.; Lathem, Terry L.; Lance, Sara; Padro, Luz T.; Lin, Jack J.; Cerully, Kate M.; Bougiatioti, Aikaterini] Georgia Inst Technol, Atlanta, GA 30332 USA.
[Raatikainen, Tomi] Finnish Meteorol Inst, FI-00101 Helsinki, Finland.
[Nenes, Athanasios; Mihalopoulos, Nikos] Fdn Res & Technol Hellas, Inst Chem Engn & High Temp Chem Proc, Patras 71110, Greece.
[Seinfeld, John H.; Moore, Richard H.; Flagan, Richard C.] CALTECH, Pasadenda, CA 91106 USA.
[Moore, Richard H.; Anderson, Bruce E.] NASA, Langley Res Ctr, Hampton, VA 23681 USA.
[Lance, Sara; Smith, James N.] Natl Ctr Atmospher Res, Atmospher Chem Div, Boulder, CO 80305 USA.
[Lance, Sara] SPEC Inc, Boulder, CO 80301 USA.
[Padro, Luz T.] Tufts Univ, Medford, MA 02155 USA.
[Bougiatioti, Aikaterini; Mihalopoulos, Nikos] Univ Crete, Dept Chem, Iraklion 71003, Greece.
[Cozic, Julie] NOAA, Div Chem Sci, Earth Syst Res Lab, Boulder, CO 80305 USA.
[Cozic, Julie] Lab Glaciol & Geophys Environm, F-38402 St Martin Dheres, France.
[Ruehl, Christopher R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Chuang, Patrick Y.] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA.
[Jonsson, Haflidi] USN, Postgrad Sch, Monterey, CA 93943 USA.
[Smith, James N.] Univ Eastern Finland, Dept Appl Phys, Kuopio 70210, Finland.
RP Nenes, A (reprint author), Georgia Inst Technol, Atlanta, GA 30332 USA.
EM athanasios.nenes@gatech.edu
RI Smith, James/C-5614-2008; Moore, Richard/E-9653-2010; Raatikainen,
Tomi/C-5410-2014; Morales Betancourt, Ricardo/A-3827-2016; Mihalopoulos,
Nikolaos/H-5327-2016
OI Smith, James/0000-0003-4677-8224; Morales Betancourt,
Ricardo/0000-0002-5475-8605; Mihalopoulos, Nikolaos/0000-0002-1282-0896
FU Georgia Tech President's fellowship; National Center for Atmospheric
Research Advanced Study Program Graduate Fellowship; NASA Graduate
Student Researchers Program; Department of Energy Global Change
Education Fellowship; NASA Earth and Space Science Fellowship; NASA
postdoctoral fellowship; NASA Earth System Science fellowship; National
Science Foundation (NSF) fellowship; Georgia Tech institutional
fellowship; DOE grant; Electric Power Research Institute; NSF Faculty
Early Career Development award; NOAA grants; NASA grants
FX We thank Dr. Xiaohong Liu for advice on using the CAM 5.1 and for
providing computer time for the simulations. We also thank all those who
contributed to the measurement campaigns; Charles Brock from the
National Oceanic and Atmospheric Administration (NOAA) Earth System
Research Laboratory; and the National Aeronautics and Space
Administration (NASA) Langley Aerosol Research Group Experiment for
supporting aerosol measurements during Arctic Research of the
Composition of the Troposphere from Aircraft and Satellites. T. R.
thanks the Finnish Cultural Foundation; S. L. and J.J.L. acknowledge the
support of a Georgia Tech President's fellowship and an National Center
for Atmospheric Research Advanced Study Program Graduate Fellowship; and
J.J.L. thanks the NASA Graduate Student Researchers Program for funding.
R. H. M. acknowledges support from a Department of Energy Global Change
Education Fellowship, a NASA Earth and Space Science Fellowship, and a
NASA postdoctoral fellowship. L. T. P. received funding from a NASA
Earth System Science fellowship. T. L. L. acknowledges support from a
National Science Foundation (NSF) fellowship and a Georgia Tech
institutional fellowship. Funding from a DOE grant (to A.N.), the
Electric Power Research Institute, an NSF Faculty Early Career
Development award (to A.N.), NOAA grants (to J.H.S. and A.N.), and NASA
grants (to A.N.) is acknowledged.
NR 34
TC 16
Z9 16
U1 1
U2 52
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD MAR 5
PY 2013
VL 110
IS 10
BP 3760
EP 3764
DI 10.1073/pnas.1219591110
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 109OH
UT WOS:000316377400030
PM 23431189
ER
PT J
AU Cranch, GA
Miller, GA
Askins, CG
Bartolo, RE
Kirkendall, CK
AF Cranch, Geoffrey A.
Miller, Gary A.
Askins, Charles G.
Bartolo, Robert E.
Kirkendall, Clay K.
TI Remotely-Interrogated Three-Axis Fiber Laser Magnetometer
SO IEEE SENSORS JOURNAL
LA English
DT Article
DE Fiber laser sensor; magnetic field sensor; magnetometer; magnetometry;
surveillance
ID MAGNETIC-FIELD SENSOR; FORCE
AB A fiber optic magnetic field sensor node designed for seabed-mounted surveillance arrays, incorporating three orthogonally mounted magnetic field sensors and a microelectomechancial systems inclinometer, is described. Each sensor comprises a current carrying nonmagnetic bridge, which experiences the Lorentz force generated in a magnetic field. A metalized fiber laser attached to the bridge measures the induced strain. The operating principle and fundamental performance of the sensor as well as relevant performance parameters are described. Measured data illustrating the sensor and node performance in laboratory tests are presented. Less than 2 nanoTesla/Hz(1/2) resolution at frequencies from 0.002 to 10 Hz is achieved with only 75 mA-rms of current. The sensor node is separated from the interrogation electronics with a 1-km fiber optic cable (extendable to 10 km) and qualified to an operating depth of 100 m. Methods to further improve the magnetometer performance are also discussed.
C1 [Cranch, Geoffrey A.; Miller, Gary A.; Askins, Charles G.; Kirkendall, Clay K.] Naval Res Lab, Washington, DC 20375 USA.
[Bartolo, Robert E.] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
RP Cranch, GA (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM geoff.cranch@nrl.navy.mil; gary.miller@nrl.navy.mil;
charles.askins@nrl.navy.mil; bartolo@umd.edu;
clay.kirkendall@nrl.navy.mil
FU U.S. Naval Research Laboratory 6.2 Base Program; Navy International
Programs Office
FX This work was supported in part by the U.S. Naval Research Laboratory
6.2 Base Program and the Navy International Programs Office. The
associate editor coordinating the review of this paper and approving it
for publication was Prof. Elfed Lewis.
NR 24
TC 1
Z9 1
U1 2
U2 14
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1530-437X
EI 1558-1748
J9 IEEE SENS J
JI IEEE Sens. J.
PD MAR
PY 2013
VL 13
IS 3
BP 890
EP 899
DI 10.1109/JSEN.2012.2217126
PG 10
WC Engineering, Electrical & Electronic; Instruments & Instrumentation;
Physics, Applied
SC Engineering; Instruments & Instrumentation; Physics
GA 296ZJ
UT WOS:000330224100002
ER
PT J
AU Michopoulos, JG
Iliopoulos, A
AF Michopoulos, John G.
Iliopoulos, Athanasios
TI Complete High Dimensional Inverse Characterization of Fractal Surfaces
and Volumes
SO JOURNAL OF COMPUTING AND INFORMATION SCIENCE IN ENGINEERING
LA English
DT Article
ID INTERFACIAL TEMPERATURE DISTRIBUTION; WEIERSTRASS-MANDELBROT FUNCTION;
DISSIPATED ENERGY DENSITY; ELASTIC-PLASTIC CONTACT; STRAIN-INDUCED
DAMAGE; SLOW SLIDING REGIME; ROUGH SURFACES; MULTISCALE ROUGHNESS;
SIMULATION; PROFILES
AB In the present paper, we are describing a methodology for the determination of the complete set of parameters associated with the Weierstrass-Mandelbrot (W-M) function that can describe a fractal scalar field distribution defined by measured or computed data distributed on a surface or in a volume. Our effort is motivated not only by the need for accurate fractal surface and volume reconstruction but also by the need to be able to describe analytically a scalar field quantity distribution on a surface or in a volume that corresponds to various material properties distributions for engineering and science applications. Our method involves utilizing a refactoring of the W-M function that permits defining the characterization problem as a high dimensional inverse problem solved by singular value decomposition for the so-called phases of the function. Coupled with this process is a second level exhaustive search that enables the determination of the density of the frequencies involved in defining the trigonometric functions participating in the definition of the W-M function. Numerical applications of the proposed method on both synthetic and actual surface and volume data, validate the efficiency and the accuracy of the proposed approach. This approach constitutes a radical departure from the traditional fractal dimension characterization studies and opens the road for a very large number of applications.
C1 [Michopoulos, John G.] Naval Res Lab, Ctr Computat Mat Sci, Computat Multiphys Syst Lab, Washington, DC 20375 USA.
[Iliopoulos, Athanasios] George Mason Univ, Computat Mat Sci Ctr, Fairfax, VA 22030 USA.
RP Michopoulos, JG (reprint author), Naval Res Lab, Ctr Computat Mat Sci, Computat Multiphys Syst Lab, Washington, DC 20375 USA.
RI Michopoulos, John/D-6704-2016
OI Michopoulos, John/0000-0001-7004-6838
FU Naval Research Laboratory
FX The authors acknowledge support for this work by the Naval Research
Laboratory's core funding. The authors are indebted to Professor Paul
Lagace, Aeronautics and Astronautics Professor of Engineering Systems,
MacVicar Faculty Fellow at the Department of Aeronautics and
Astronautics of the Massachusetts Institute of Technology and his
graduate student Jeffrey Chambers, for providing the micro-tomography
scans of our composite specimens.
NR 34
TC 0
Z9 0
U1 1
U2 5
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 1530-9827
EI 1944-7078
J9 J COMPUT INF SCI ENG
JI J. Comput. Inf. Sci. Eng.
PD MAR
PY 2013
VL 13
IS 1
AR 011001
DI 10.1115/1.4007987
PG 9
WC Computer Science, Interdisciplinary Applications; Engineering,
Manufacturing
SC Computer Science; Engineering
GA 241RL
UT WOS:000326185000001
ER
PT J
AU Slebodnick, P
Lysogorski, D
Wegand, J
Lemieux, EJ
Nelson, BN
Pleasant, J
Kepler, G
Tagert, J
AF Slebodnick, Paul
Lysogorski, Diane
Wegand, John
Lemieux, Edward J.
Nelson, Bruce N.
Pleasant, Jay
Kepler, Greg
Tagert, James
TI A Rapid and Cost Effective Method for Assessing the Surface Profile of
Nonskid Coatings on US Navy Ships
SO NAVAL ENGINEERS JOURNAL
LA English
DT Article
DE surface profile; nonskid QA/QC
AB The surface profile of newly applied and in-service nonskid coatings cannot be characterized effectively using current methods. Most nonskid coatings have higher average maximum peak heights than the maximum range provided by replica tape. Additionally, parameters such as the density of ridges, the orientation of ridges, the extent of aggregate in troughs, and the slumping of ridges-all of which are important to nonskid performance-are not obtained using standard methods. As a result of an insufficient profile or an objective method for determining that the surface profile of newly applied nonskid coating is compliant with requirements, the U. S. Navy does not currently have a method for determining when nonskid coatings should be replaced.
The Naval Research Laboratory (NRL) has been exploring the use of non-contact, laser-based methods for measuring the surface profile of nonskid surfaces since 2008. In 2010 and 2011, a system was configured for measuring the surface profile of shipboard nonskid surface. This paper describes the system and the results of both laboratory and shipboard evaluations. These results demonstrate the NRL Surface Profile Tool's ability to distinguish between properly-and improperly-applied nonskid coatings, and its ability to quantify reductions in the surface profile of in-service nonskid coatings.
C1 [Slebodnick, Paul] NRL, Ctr Corros Sci & Engn, Marine Engn Sect, Washington, DC USA.
[Lysogorski, Diane; Wegand, John; Lemieux, Edward J.] US Navy, Naval Res Lab, Ctr Corros Sci & Engn, Washington, DC USA.
RP Slebodnick, P (reprint author), NRL, Ctr Corros Sci & Engn, Marine Engn Sect, Washington, DC USA.
NR 1
TC 0
Z9 0
U1 1
U2 3
PU AMER SOC NAVAL ENG INC
PI ALEXANDRIA
PA 1452 DUKE STREET, ALEXANDRIA, VA 22314-3458 USA
SN 0028-1425
J9 NAV ENG J
JI Nav. Eng. J.
PD MAR
PY 2013
VL 125
IS 1
BP 95
EP 107
PG 13
WC Engineering, Marine; Engineering, Civil; Oceanography
SC Engineering; Oceanography
GA 224SG
UT WOS:000324908400014
ER
PT J
AU Biswas, S
Dong, Q
Rafalko, V
Rimmele, A
AF Biswas, Saroj
Dong, Qing
Rafalko, Valerie
Rimmele, Arthur
TI Dynamic Model-Based Vector Control of Linear Induction Motors
SO NAVAL ENGINEERS JOURNAL
LA English
DT Article
DE linear induction motor (LIM) modeling; dynamic model; vector control
ID DIRECT TORQUE CONTROL; IDENTIFICATION; SPEED; DRIVE; INVERTER
AB Induction machines (IM) have been the workhorse of industry due to their robustness, simple and rugged structure, low cost, and reliability. Traditionally, AC machines have been used in open-loop constant speed applications. The linear induction motor (LIM) is an alternative formation of a rotational induction machine (RIM). Typically, the LIM is designed for high force and stroke motion applications, such as material handling and transportation systems. Often the LIM moves along a linear rail directly, so it provides precision positioning tracking performance and high dynamic stiffness with a hard stop when equipped with a linear encoder and closed-loop control methods. A variable frequency vector control is the foundation of modern high performance AC drives for rotary induction motors. The driving principles of the LIM are similar to the RIM, but its control characteristics are more complicated than the RIM. When driven by a field-oriented controller, also known as a vector controller, LIM behaves like a separately excited DC machine where flux and motion dynamics are controlled independently in order to achieve high performance from the IM drives. The vector control method provides velocity and position control of the LIM effectively. In this paper, a mathematical model of a linear induction motor is presented based on the synchronous d-q reference frame. The secondary field-oriented vector control strategy is developed for precise force control to achieve the desired speed profile for varying load conditions. Under the developed control scheme, the controller stabilizes the LIM effectively when the mass of the slider is varying. The effectiveness of the proposed control scheme is verified by simulation examples.
C1 [Biswas, Saroj] Temple Univ, Dept Elect & Comp Engn, Philadelphia, PA 19122 USA.
[Dong, Qing] Naval Surface Warfare Ctr, Controls Res & Dev Grp, Carderock Div, Philadelphia, PA USA.
[Rafalko, Valerie; Rimmele, Arthur] Naval Air Warfare Ctr, Lakehurst, NJ USA.
RP Biswas, S (reprint author), Temple Univ, Dept Elect & Comp Engn, Philadelphia, PA 19122 USA.
NR 19
TC 0
Z9 0
U1 1
U2 5
PU AMER SOC NAVAL ENG INC
PI ALEXANDRIA
PA 1452 DUKE STREET, ALEXANDRIA, VA 22314-3458 USA
SN 0028-1425
EI 1559-3584
J9 NAV ENG J
JI Nav. Eng. J.
PD MAR
PY 2013
VL 125
IS 1
BP 127
EP 134
PG 8
WC Engineering, Marine; Engineering, Civil; Oceanography
SC Engineering; Oceanography
GA 224SG
UT WOS:000324908400018
ER
PT J
AU Karpovitch, EA
Ferguson, AA
AF Karpovitch, E. Alan
Ferguson, Ashley Auteri
TI CG 47-class Cruiser Harvesting Project
SO NAVAL ENGINEERS JOURNAL
LA English
DT Article
DE CG 47-class harvesting; lower maintenance costs; sonar dome cutting;
propulsion; CG 47 Ticonderoga; CG 48 Yorktown; CG 51 Thomas S. Gates;
shafts and propellers
AB The Propulsion Program issues Ready For Issue (RFI) assets from a spares pool that gets ships back to sea faster. Included in this RFI spares pool are Marine Gas Turbines (MGT), propellers, shafts, hubs, and oil distribution boxes (OD Boxes). There are not enough main propulsion shafts available to manage an adequate pool of refurbished shafts for the remaining 22 active CG 47-class ships. This paper discusses the need to dry dock and fund the harvesting and refurbishment of the main propulsion shaft sections on the three remaining decommissioned CG 47-class ships (CG 47/48/51). Although increasing the shafting spares pool is the primary focus of this effort, other assets are also harvested that include propellers, rudders, main propulsion and ship service MGTs, generators, Main Reduction Gears (MRG), Controllable Pitch Propeller (CPP) components, and a sonar dome banjo. All assets removed are used to support the fleet directly, for test cells, in training facilities, or to increase spares pools of obsolete equipment. There are many challenges in cutting-edge technology solutions, such as sawing off a ship's sonar dome while still waterborne to decrease the ship's draft in order to fit into a smaller dry dock, or harvesting a sonar dome banjo spare. These challenges and lessons learned are discussed in this paper, as well as how the Propulsion Program has been responsible for major cost avoidance to the fleet by harvesting equipment for reuse. On Sept. 28, 2011, NSWCCD-SSES issued a contract to dry dock and harvest assets from the decommissioned ships: Ticonderoga (CG 47), Yorktown (CG 48), and Thomas S. Gates (CG 51). The paper briefly goes over responsibilities, milestones, challenges, progress, and lists of the harvested assets, including cost avoidance. This is considered a very efficient, cost effective way to continue maintaining the remaining guided missile cruisers in the fleet.
C1 [Karpovitch, E. Alan; Ferguson, Ashley Auteri] Naval Surface Warfare Ctr, Carderock Div, Syst Engn Stn Philadelphia, Philadelphia, PA USA.
RP Karpovitch, EA (reprint author), Naval Surface Warfare Ctr, Carderock Div, Syst Engn Stn Philadelphia, Philadelphia, PA USA.
EM Ernest.karpovitch@navy.mil; Ashley.a.ferguson@navy.mil
NR 11
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC NAVAL ENG INC
PI ALEXANDRIA
PA 1452 DUKE STREET, ALEXANDRIA, VA 22314-3458 USA
SN 0028-1425
J9 NAV ENG J
JI Nav. Eng. J.
PD MAR
PY 2013
VL 125
IS 1
BP 135
EP 141
PG 7
WC Engineering, Marine; Engineering, Civil; Oceanography
SC Engineering; Oceanography
GA 224SG
UT WOS:000324908400019
ER
PT J
AU Breiner, MM
Chavez, DE
Parrish, DA
AF Breiner, Megan M.
Chavez, David E.
Parrish, Damon A.
TI Nucleophilic Reactions of The Bis Ammonium Salt of 4,4 ',5,5
'-Tetranitro-2,2 '-biimidazole
SO SYNLETT
LA English
DT Article
DE biimidazoles; heterocycles; N-amination; explosives; nitro compounds
ID ANTIPROTOZOAL ACTIVITY; DERIVATIVES; 2,2'-BIIMIDAZOLE; NITROIMIDAZOLES
AB The reactivity of the bis ammonium salt of 4,4',5,5'-tetranitro-1,1'-biimidazole toward nucleophilic addition to the electrophiles dimethylsulfate and mesitylene-O-sulfonyl hydroxylamine has been studied. We have found that the tetranitrobiimidazolate bis anion has sufficient nucleophilicity to react with these electrophiles to form new products, 1,1'-dimethyl-4,4', 5,5'-tetranitro-2,2'-biimidazole (DMTNBI), 1,1'-diamino-4,4', 5,5'-tetranitro-2,2'-biimidazole, and ammonium 1-amino-4,4', 5,5'-tetranitro-2,2'-biimidazolate. These materials were characterized chemically and with respect to their thermal stability.
C1 [Breiner, Megan M.; Chavez, David E.] Los Alamos Natl Lab, Weap Expt Div, Los Alamos, NM 87545 USA.
[Parrish, Damon A.] USN, Res Lab, Struct Matter Lab, Washington, DC 20375 USA.
RP Chavez, DE (reprint author), Los Alamos Natl Lab, Weap Expt Div, POB 1663, Los Alamos, NM 87545 USA.
EM dechavez@lanl.gov
FU U.S. Department of Energy [DE-AC52-06NA25396]; Office of Naval Research
[N00014-11-AF-0-0002]
FX The authors would like to thank the Joint Munitions Program for the
funding to perform this work. We would also like to thank the Los Alamos
National Laboratory Analytical team (Anna Giambra, Daniel Preston, Mary
Sandstrom, Jose Archuleta) for performing the sensitivity
characterization and testing. Los Alamos National Laboratory is operated
by Los Alamos National Security (LANS, LLC) under contract No.
DE-AC52-06NA25396 for the U.S. Department of Energy. The authors also
thank the Office of Naval Research (Award No. N00014-11-AF-0-0002)
NR 23
TC 4
Z9 4
U1 0
U2 5
PU GEORG THIEME VERLAG KG
PI STUTTGART
PA RUDIGERSTR 14, D-70469 STUTTGART, GERMANY
SN 0936-5214
J9 SYNLETT
JI Synlett
PD MAR
PY 2013
VL 24
IS 4
BP 519
EP 521
DI 10.1055/s-0032-1318142
PG 3
WC Chemistry, Organic
SC Chemistry
GA 098UG
UT WOS:000315574000025
ER
EF